EP4650545A1

EP4650545A1 - A tilt and turn type roof window comprising a movable unit configured to be manually tilted and turned

Info

Publication number: EP4650545A1
Application number: EP24176653.4A
Authority: EP
Inventors: Hannibal Lauridsen Nikolaj; Kristian Ornsvig Nielsen; Ohlenschlaeger Terkel; Hansen Puli Karina
Original assignee: VKR Holding AS
Current assignee: VKR Holding AS
Priority date: 2024-05-17
Filing date: 2024-05-17
Publication date: 2025-11-19

Abstract

The present disclosure relates to a roof window (1) of the tilt (AX1) and turn (AX2) type, for a building. The roof window (1) comprises a first lock (12, 25) which in a locked state is configured to interlock an interconnecting part (11, 11a, 11b) and a fixation frame (2) of the roof window (1), at least in a turn mode (TUM), so that turning of the movable unit (3) around a turn axis (AX2) is allowed while a first lock (12, 25) is in a locked state and while a first handle (8) of the roof window (1) remains in a first handle position (HP1). A second lock (15) is, in a locked state, configured to lock the movable unit (3) in a third, closed and locked mode (CLM). A second handle (18) is configured to be operated so as to switch the second lock (15) between the locked state and an unlocked state. The movable unit (3) is configured to be turned relative to the interconnecting part (11, 11a, 11b) around said turn axis (AX2) by means of the second handle (18) while the first handle (8) is in a second handle position (HP2) and while the first lock (12, 25) is in an unlocked state. The present disclosure also relates to a method of retrofitting a tilt and turn type roof window to comprise an electrically powered actuator (9).

Description

The present disclosure relates to a roof window of the tilt and turn type. Moreover, the present disclosure relates to a method of retrofitting a tilt and turn type roof window with an electrically powered actuator.

Background

Various types of roof windows exists. Some of these are "out of reach" roof windows which are arranged so high over a floor level that it is impossible or inconvenient for a human user to manually operate such windows to open and close these. Such windows may therefore be opened and closed by means of an electric actuator. "Out of reach" roof windows may be of the turn type, where a top part of the movable unit comprising an insulating glass unit moves into the building and the bottom part of the movable unit moves outwards. Such windows are also known to be of the centre hung type.
Another type of roof windows comprises "in reach" roof windows. Here it is relevant to allow manual control. Such "in reach" roof windows may be controlled manually by human hand in order to open and close these windows. Such roof windows are primarily of the tilt type, such as the top hung type, and may comprise a handle at the bottom of the movable unit comprising the insulating/insulated glass unit.
Hybrid roof windows providing both a tilt functionality and a turn functionality also exists. These may also be known as tilt and turn type roof windows. These enables both a rotation of the movable unit comprising an insulating glass unit around an upper tilt axis in a tilt mode so as to enable tilting of the movable unit, and, in a turn mode, a rotation of the movable unit around a turn axis which is parallel to the tilt axis, so as to enable turning of the movable unit.
Known tilt and turn type roof windows may suffer from that the user may need to provide unintuitive user operations in order to select if the movable unit should open in either the tilt mode or the turn mode. For example in some tilt and turn type roof windows a user may need to assure that a first handle is in an unlocked position so as to unlock a lock that is configured to directly interlock a fixation frame of the window and a movable unit comprising an insulating glass unit. Thereafter a user may need to grab a second handle to turn the roof window in a turn mode. In other solutions, a user may need to manually open a window first and thereafter, by means of a selection button which is normally hidden when the window is closed, select if the movable unit should open in turn mode or tilt mode the next time the window is to be opened.
A tilt and turn type roof window is e.g. known from patent document DE 197 17 351 A1 . However, this window may e.g. suffer from comprising a solution that may provide drawbacks in relation to being unintuitive and user unfriendly. It may also be less aesthetically appealing.
Another type of tilt and turn window is disclosed in patent document US 5,568,702 . This however provides drawbacks since it may e.g. provide an unintuitive and/or user unfriendly control.
The present disclosure may provide a user friendly roof window of the tilt and turn type which may be more intuitive and/or easy to use. It may additionally be an object of the present disclosure to provide a more mechanically simple solution and/or a more reliable solution and/or a solution which is easy to install in the roof. The present disclosure may also provide a tilt and turn type roof window that is aesthetically pleasing.

Summary

The present disclosure relates, in a first aspect, to a tilt and turn type roof window for a building. The tilt and turn type roof window comprises a fixation frame comprising a top frame profile, a bottom frame profile and side frame profiles, wherein the side frame profiles extends between the top and bottom frame profiles. The tilt and turn type roof window moreover comprises a movable unit. The movable unit comprises a unit frame and an insulated glass unit which is attached to the unit frame.
The movable unit comprises a first handle. The first handle comprises a gripping part configured to be grabbed by human hand. The first handle is configured to be moved relative to the movable unit from a first handle position to a second handle position by a human user. The first handle is arranged at the bottom of the roof window. The movable unit moreover comprises a second handle.
The tilt and turn type roof window moreover comprises an interconnecting part. The interconnecting part interconnects the movable unit and said fixation frame.
In a tilt mode, the movable unit is configured to turn relative to the fixation frame around a tilt axis by means of at least one first hinge so as to arrange the movable unit in an open, tilted position. The tilt axis is arranged at a top part of the roof window. The interconnecting part may be configured to move together with the movable unit relative to the fixation frame in said tilt mode.
In a turn mode, the movable unit is configured to be turned around a turn axis arranged between the top part of the roof window and a bottom part of the roof window by means of second hinges so as to arrange the movable unit in a turned position. The tilt axis and the turn axis are parallel.
The movable unit is supported by the interconnecting part and is configured to turn relative to the interconnecting part around said turn axis in the turn mode.
The movable unit is in a third closed and locked mode configured be in a closed and locked position relative to the fixation frame. The first handle is configured to be in the first handle position in the third closed and locked mode.
The tilt and turn type roof window comprises a first lock which in a locked state is configured to interlock the interconnecting part and the fixation frame, so that said turning of the movable unit around the turn axis is allowed while the first handle remains in the first handle position.
Moreover, the tilt and turn type roof window comprises a second lock which in a locked state is configured to lock the movable unit in the third, closed and locked mode. The second handle is configured to be operated so as to switch the second lock between the locked state and an unlocked state. The second handle is configured to be manually pulled or pushed with a force so as to turn the movable unit by means of said force in the turn mode to the turned position.
In some embodiments of the present disclosure, the movable unit may, in a fourth mode, be configured to be turned relative to the interconnecting part around said turn axis by means of the second handle while the first handle is in the second handle position and while the first lock is in an unlocked state.
The present disclosure provides a user friendly roof window of the tilt and turn type where the movable unit is configured to rotate around different parallel axes in a tilt mode and in a turn mode, respectively. The roof window according to the present disclosure enables a solution that is intuitive and user friendly to the human user. Additionally, the present disclosure may provide a mechanically simple and more reliable solution. The present disclosure may also enable providing a roof window which enables a more easy and/or simple solution in relation to retrofitting of an electric actuator, for example after roof window installation.
One or more of the advantages mentioned above may be obtained by that the first lock which in the locked state is configured to interlock the interconnecting part and the fixation frame. Hence instead of the first lock being configured to directly interlock the movable unit to the fixation frame, the interconnecting part is locked to the fixation frame by means the first lock. This may provide that a user (or a retrofitted actuator) can turn the movable unit around the second axis / turn axis while the first handle remains in the first handle position. Hence, the user (or retrofitted actuator) may move the movable unit while the first handle is in the same (first) handle position relative to the movable unit as it may be in in the closed and locked mode.
The user may neither need to pre-select in which opening mode (tilt mode or turn mode) the window should open in the next time.
Since the roof window also enables the fourth mode, this may enable a more intuitive and/or free manual control. For example, a user may not be limited by the positioning of the first handle relative to the movable unit. The user may choose to turn the movable unit around the turn axis no matter if the first handle is in the first handle position or the second handle position. Additionally or alternatively, it may provide a solution that is more advantageous in relation to actuator retrofitting.
Some known tilt and turn type roof windows may become unreliable over time and require more service or even replacement of certain parts. Some of these roof windows e.g. suffer from having a mechanically complex solution which may result in a less reliable window. The solution according to various embodiments of the present disclosure may enable a solution that may be more reliable, also in the various environments that a roof window may be installed in.
The present disclosure may also provide a solution that is more aesthetically pleasing. For example, parts of the first lock may be less visible when the movable unit is in a tilted or turned position.
The moveable unit may be prevented from rotating around the tilt axis as a consequence of the first lock interlocking the interconnecting part to the fixation frame.
The tilt and turn type roof window may also be referred to as roof window in the present document.
In one or more embodiments of the present disclosure, the movable unit, in the fourth mode, may be configured to be simultaneously in the turn mode and the tilt mode. This may e.g. allow for improved control and/or user experience.
In one or more embodiments of the present disclosure, the first lock, in the locked state of the first lock, may be configured to interlock the interconnecting part and the fixation frame so that said turning of the movable unit around the turn axis is allowed while the first lock is in the locked state and while the first handle remains in said first handle position.
In some embodiments of the present disclosure, the first lock, in the locked state of the first lock, may be configured to interlock the interconnecting part and the fixation frame hereof at least in the turn mode.
In one or more embodiments of the present disclosure, the second lock, in the locked state of the second lock, may be configured to interlock the interconnecting part and the movable unit in the third, closed and locked mode.
In one or more embodiments of the present disclosure, the movable unit, in the fourth mode, may be configured to turn around said turn axis from said open, tilted position while both the first lock and the second lock are in the respective unlocked state.
In other embodiments of the present disclosure, the second lock may in the locked state be configured to interlock the movable unit and the fixation frame in the third, closed and locked mode.
When the first handle is arranged at the bottom of the roof window, This may make the handle more accessible and user friendly and/or enable that a user may provide less force to open the movable unit in the tilt mode. It may also provide an intuitive solution.
In one or more embodiments of the present disclosure, the first handle is arranged at the bottom of the of the movable unit. In some embodiments, the first handle may be attached to an elongated bottom unit frame profile of the unit frame.
In the third, closed and locked mode, the movable unit may be configured to provide a gasket pressure to one or more gaskets of the roof window so as to provide water tightening between the movable unit and the fixation frame.
In one or more embodiments of the present disclosure, the second handle is arranged at the top of the roof window, such as at the top of the movable unit.
This may e.g. be advantageous as the user may hereby not get hit or in other ways get in the way of the movable unit when the movable unit is turned around the turn axis. When the movable unit is turned around the turn axis, the top end of the movable unit may move inwards towards the building interior.
In one or more embodiments of the present disclosure, the second lock is separate and independent to the first lock.
The first handle may be arranged at the bottom of the movable unit.
In one or more embodiments of the present disclosure, the second lock may be configured to be operated by means of the second handle independently of the handle position of the first handle.
In some embodiments of the present disclosure, the roof window is configured so that said movement of the first handle to the second handle position does not provide an interlocking of the movable unit and the interconnecting part.
In one or more embodiments of the present disclosure, the first lock may be configured to be operated by means of the first handle so as to control said first lock between the locked state and an unlocked state. IN some embodiments, the first handle may be configured to be moved from the first handle position to the second handle position by a human user so as to put the first lock in the unlocked state, thereby unlocking the interconnecting part and the fixation frame so as to put the movable unit in the tilt mode.
This may e.g. provide a mechanically simple and/or user friendly solution. It ,ay also enable provide a roof window with a more simple and/or reliable lock arrangement.
In one or more embodiments of the present disclosure, the roof window may comprise a predefined actuator space configured to receive and house an actuator housing of a retrofitted electrically powered actuator.
This may e.g. allow for a more aesthetically advantageous solution since the roof window is prepared for actuator retrofitting. It may moreover help to assure correct actuator installation and/or that the actuator exerts forces at desired locations of the window.
In one or more embodiments of the present disclosure, the actuator housing may be configured to be substantially hidden when installed at the actuator space. For example at least when the movable unit is in the third closed and locked mode.
In some embodiments, the actuator space may be arranged between the fixation frame and the movable unit, such as between the interconnecting part and the movable unit.
This may e.g. provide a solution obtaining improved actuator protection, such as mechanical protection and/or weather protection. Also the actuator is not visible and may also not interfere with other accessory such as sun blinds or insect screens. Also the actuator may not block any of the incoming sunlight. It may also allow for a more aesthetically advantageous solution.
In one or more embodiments of the present disclosure, the actuator space is arranged at the top area of the roof window.
This allows for a more aesthetically advantageous solution and/or a solution that provides improved protection, such as weather protection, of the actuator.
In one or more embodiments of the present disclosure, the roof window may comprise a predefined connection interface for attachment of the electrically powered actuator.
The predefined connection interface may e.g. provide a solution where the roof window is prepared for and configured for the actuator retrofitting. This may e.g. provide a more user friendly solution and/or a solution where the risk of installation errors when installing and positioning the actuator is reduced. The user may hereby experience easy installation of the actuator and the manufacturer may be more sure that the risk of actuator retrofitting related complaints are reduced.
The actuator may in some embodiments be readily retrofitted to the window or the lock housing or the striker plate.
In some embodiments of the present disclosure, the predefined connection interface (9x1, 9y1) comprises one or more of:

one or more predefined holes or dents,
one or more predefined visual markings indicating actuator position and/or connection interface position, so as to help the user with correct actuator positioning
one or more mountings,
one or more clips
one or more protrusions
one or more tracks, such as elongated tracks.

In one or more embodiments of the present disclosure, the interconnecting part or the fixation frame may comprise a part of the predefined connection interface.
In one or more embodiments of the present disclosure, the movable unit may comprise a part of the predefined connection interface. In some embodiments hereof, a part of the predefined connection interface may be arranged at a handle part or at the unit frame of the of the movable unit.
In one or more embodiments of the present disclosure, the first lock, in the locked state, may be configured to interlock the interconnecting part and the fixation frame in the third closed and locked mode. This may e.g. be provided so as to prevent said tilting of the movable unit.
This may e.g. provide a more secure solution, a more simple solution and/or a solution facilitating turning of the movable unit around the turn axis while the first handle is remained in said first handle position.
In one or more embodiments of the present disclosure, the roof window may comprise a switching mechanism. Said switching mechanism comprises a displaceable part which is configured to be displaced so as to control an engagement part of the first lock. The displaceable part may be displaceably attached, such as linearly displaceably attached, to the fixation frame.
This may provide a reliable and/or advantageous mechanical control of the first lock.
In one or more embodiments of the present disclosure, said displaceable part of the switching mechanism may comprise or be a bar or strip which is displaceably attached to the fixation frame by means of a guide, such as a linear guide.
The guide may, e.g. in some embodiments, comprise a rail, a piping, or a telescopic guide.
In one or more embodiments of the present disclosure, the displaceable part of the switching mechanism may be configured to be displaced mechanically by manipulating the first handle. This may e.g. provide advantageous and/or reliable control of the switching mechanism. In one or more other or additional embodiments of the present disclosure, the displaceable part of the switching mechanism may be configured to be displaced by means of an electric motor and/or biasing means.
In one or more embodiments of the present disclosure, the first handle may be mechanically coupled to the first lock. This may provide a more simple and/or reliable control of the first lock.
In one or more embodiments of the present disclosure, the displaceable part of the switching mechanism may be configured to be displaced mechanically by manipulating the first handle. This may e.g. provide advantageous and/or reliable control of the switching mechanism.
In one or more embodiments of the present disclosure, the displaceable part of the switching mechanism may be mechanically connected to the first handle so that the displaceable part may be controlled by means of the first handle.
In one or more embodiments of the present disclosure, the displaceable part of the switching mechanism may additionally or alternatively be configured to be displaced by means of an electric motor and/or biasing means.
In one or more embodiments of the present disclosure, the movable unit is configured to be interlocked to the fixation frame in said third closed and locked mode by means of said switching mechanism. For example by means of said guide. Additionally or alternatively, the movable unit may be configured to be interlocked to the fixation frame by means of said switching mechanism, for example by means of said guide, while the movable unit is in said turn mode.
In one or more embodiments of the present disclosure, the movable unit is configured to be turned relative to the interconnecting part around said turn axis by means of the actuator and/or by hand while the first handle is in the second handle position.
In some embodiments, the actuator and/or the second lock as e.g. described in more details above and/or below may or may not, instead, control the position of the movable unit relative to the interconnecting part when the movable unit is in the tilt mode. Hence, the actuator and/or the second lock may maintain the movable unit in a closed and e.g. locked mode relative to the interconnecting part.
In one or more embodiments of the present disclosure, the engagement part of the first lock may be configured to engage with the interconnecting part so as to lock the interconnecting part to the fixation frame, for example by means of said guide, at least while the movable unit is in said turn mode.
In one or more embodiments of the present disclosure, the engagement part of the first lock may moreover be configured to engage with the interconnecting part so as to lock the interconnecting part to the fixation frame while the movable unit is in said third closed and locked mode.
In one or more embodiments of the present disclosure, the movable unit may be configured to open in an opening direction from a closed position when set in the tilt mode. The first handle may be mechanically coupled to the switching mechanism by means of a mechanical coupling. The movable unit may comprise a first part of the mechanical coupling. The first part of the mechanical coupling is configured to disengage from a second part of the coupling when the movable unit opens in the opening direction from the closed position. In some further embodiments of the present disclosure, said switching mechanism comprises said second part of the mechanical coupling.
This may provide a mechanically simple and reliable solution. It may also provide a robust and/or space saving solution.
In some embodiments of the present disclosure, said second part of the mechanical coupling may comprise a receiving recess facing in the opening direction, or wherein said first part of the coupling comprises a receiving recess facing in away from the opening direction. This may e.g. provide that first part of the mechanical coupling, and hence the movable unit, can open in the tilt mode and/or turn mode from the closed position. For example, in some embodiments, this may be obtained no matter the state of the switching mechanism.
In one or more embodiments of the present disclosure, the movable unit may be configured to be interlocked to the fixation frame in said third closed and locked mode by means of a switching mechanism, for example by means of a guide. Additionally or alternatively, the movable unit may be configured to be interlocked to the fixation frame by means of a switching mechanism, such as by means of a guide, while the movable unit is in said turn mode.
In one or more embodiments of the present disclosure, the movable unit may be configured to be interlocked to the fixation frame in said third closed and locked mode by means of a guide, such as a linear guide and/or such as a guide of a switching mechanism.
In one or more embodiments of the present disclosure, the movable unit may be configured to be interlocked to the fixation frame by means of a guide, such as a linear guide and/or such as a guide of a switching mechanism, while the movable unit is in said turn mode.
In one or more embodiments of the present disclosure, a displaceable part, such as said displaceable part of the switching mechanism, may be configured to be displaced in a direction that is parallel to the longitudinal direction of the side frame profile of the fixation frame.
In one or more embodiments of the present disclosure, the interconnecting part may comprise an intermediate frame arranged between the fixation frame and the unit frame. Said intermediate frame may comprise intermediate side profiles which, at least in the closed and locked mode, are configured to extend along the longitudinal direction of the side frame profiles. The intermediate frame may comprise an intermediate top profile extending in a longitudinal direction which is parallel to the longitudinal direction of the top frame profile, The intermediate top profile may extend between and connect the intermediate side profiles.
The intermediate frame may provide advantages in relation to one or more of actuator attachment, interlocking of the movable unit in the tilt mode and/or the third closed and locked mode, and/or the like.
In one or more embodiments of the present disclosure, the interconnecting part may comprise an U-shaped intermediate frame which may not extend to a position between the bottom frame profile and the movable unit. This may provide a more space saving and/or aesthetically advantageous solution.
In one or more embodiments of the present disclosure, the interconnecting part comprises a movable hinge arm of the at least one first hinge.
In one or more embodiments of the present disclosure, the interconnecting part may comprise a movable hinge arm of the at least one first hinge. In some embodiments, the movable hinge arm may be attached to the above mentioned intermediate frame.
In one or more embodiments of the present disclosure, the interconnecting part may comprise or be a movable hinge arm of the at least one first hinge, such as a part that is unitary with the at least one first hinge.
In certain embodiments, the interconnecting part may substantially consist of a hinge arm of the at least one first hinge. In other embodiments, the hinge arm(s) of the at least one first hinge may be attached to an intermediate frame that may provide a part of the interconnecting part.
In one or more embodiments of the present disclosure, interconnecting part comprises a movable part, such as an arm, of the first hinge, a part of the second hinge and optionally an intermediate frame comprising frame profiles such as elongated frame profiles.
In one or more embodiments of the present disclosure, the interconnecting part comprises elongated side members extending at both sides of the movable unit. The elongated side members, for example a distal part of the elongated members, may comprise at least a part of the second hinges.
In one or more embodiments of the present disclosure, the interconnecting part may be configured to be maintained in a substantially fixed position relative to the fixation frame when the movable unit is rotated relative to the interconnecting part around said turn axis to said turned position.
In some embodiments, the interconnecting part may be configured to be maintained in a substantially fixed position relative to the fixation frame during the entire rotation of the movable unit relative to the interconnecting part around said turn axis to said turned position.
In some embodiments, the position of the interconnecting part may be configured to be substantially the same when the movable unit is in the turned position and when the movable unit is in the closed and locked mode.
The present disclosure moreover relates, according to a second aspect, to a method of retrofitting the tilt and turn type roof window according to the first aspect with an electrically powered actuator. The method comprises the steps of:

providing an electrically powered actuator, wherein the provided electrically powered actuator comprises an actuator housing and an actuating part, such as a push-pull chain,
connecting, such as attaching, a first part of the provided electrically powered actuator to the movable unit, such as to a handle part of the of the movable unit, and
connecting, such as attaching, a second part of the provided electrically powered actuator to the fixation frame or to the interconnecting part of the tilt and turn type roof window.

Hence, a user may, by means of a remote control, timer or sensor or the like, control the window from a remote position so as to open or close the movable unit by means of the actuator. The window may also comprise a rain sensor that may be used as input for activating the actuator to close the movable unit from the turned position to the closed and locked mode in case of rain. This is not limited by the position of the first handle. At the same time, a user may manually go and manually operate the roof window by means of the first handle. Hence, the user may in practice not even need to know that an actuator is present at the window, and to the user, the window may act as a conventional, manually controllable window of the tilt type when operating the first handle.
In some embodiments, the actuator may be retrofitted at a roof window that has already been installed in a roof structure of a building.
In one or more embodiments of the method, the provided actuator may be self-locking and/or have/comprise an optional second/further lock which is sequentially operated by said electrically powered actuator.
In one or more embodiments of the second aspect, the electrically powered actuator is installed so as to control the second lock between the locked state and the unlocked state of the second lock.
In one or more embodiments of the method, the electrically powered actuator is installed so that it is configured to control the second lock of the tilt and turn type roof window by moving a part of the second handle relative to the movable unit.
In one or more embodiments of the method, the method further comprises. deactivating and/or dismounting the second lock of the tilt and turn type roof window.
It may be advantageous to replace part of the lock or striker hardware with a new part that supports electric actuator operation.
In one or more embodiments of the method, the method may further comprise dismounting the second handle.
In one or more embodiments of the method, the actuator is arranged so that the movable unit is allowed to be manually turned around the tilt axis relative to the fixation frame in the tilt mode by means of the at least one first hinge while the first handle remains in said second handle position, such as by means of pushing the first handle.
In one or more embodiments of the method, the actuator is arranged so as to turn the movable unit around the turn axis relative to the interconnecting part in the turn mode while the first handle remains in said first handle position.
In one or more embodiments of the method, the actuator is configured to turn the movable unit around the turn axis relative to the interconnecting part in the turn mode while the first handle remains in said second handle position.
In one or more embodiments of the method, the actuator is arranged so as to turn the movable unit around the turn axis relative to the interconnecting part in the turn mode while the first handle remains in said first handle position and while the first handle remains in said second handle position.
In one or more embodiments of the method, the roof window comprises a predefined actuator space configured to receive and house the housing of the provided electrically driven/powered actuator. In some embodiments, the actuator space may be arranged so that the actuator housing is substantially hidden when installed at the actuator space, at least when the movable unit is in the third closed and locked mode.
In one or more embodiments of the method, the method comprises arranging the housing of the provided electrically driven/powered actuator between the fixation frame and the movable unit, such as between the interconnecting part and the movable unit.
In one or more embodiments of the method, the housing of the provided electrically powered actuator is arranged at the top area of the roof window.
In one or more embodiments of the method, the roof window may comprise one or more first connection interface parts. The provided electrically powered actuator may comprise one or more second connection interface parts. The one or more first connection interface parts may be configured for connection, such as attachment, attachment of the provided electrically powered actuator by means of said one or more second connection interface parts. The method may comprise attaching the provided electrically powered actuator to the roof window by means of said first and second connection interface parts.
In one or more embodiments of the method, the one or more second connection interface parts and/or the one or more first connection interface parts may comprise one or more of:

one or more predefined holes or dents,
one or more predefined visual markings indicating actuator (9) position and/or connection interface position, so as to help the user with correct actuator (9) positioning,
one or more mountings,
one or more clips
one or more protrusions
one or more hinge parts
one or more tracks, such as elongated tracks or grooves,

It is generally to be understood that an actuator should be in the right position due to limited room and the opening geometry of the window and hence positioning aid means, such as predefined connection interface parts, may help to provide an easier install. Also a roof window is not an ideal place to work where measuring tools and parts may be dropped and harm building equipment or persons. Also therefore a prepared/predefined connection interface part for the actuator may be advantageous.
In one or more embodiments of the method, the one or more first connection interface parts may comprise comprises one or more connection interface parts arranged at the interconnecting part or at the fixation frame.
In one or more embodiments of the method, the one or more first connection interface parts may comprise one or more connection interface parts arranged at the movable unit, such as at a handle part of the movable unit.
In one or more embodiments of the method, the one or more second connection interface parts of the provided electrically powered actuator comprises one or more interface connectors configured to engage with the one or more first connection interface parts of the roof window.
In one or more embodiments of the method, the housing of the provided electrically powered actuator may be attached to the roof window by means of a hinged connection.
In one or more embodiments of the method, the housing of the provided electrically powered actuator may be attached to the interconnecting part or the fixation frame, such as by means of a hinged connection.
In other embodiments, the housing of the electrically powered actuator may be attached to the movable unit, such as by means of a hinged connection.
In one or more embodiments of the present disclosure, the interconnecting part is configured to be maintained in a substantially fixed position, such as relative to the fixation frame, when the movable unit is rotated relative to the interconnecting part around said turn axis to said turned position.
In one or more embodiments of the present disclosure, the interconnecting part is configured to be maintained in a substantially fixed position, such as relative to the fixation frame, during the entire rotation of the movable unit relative to the interconnecting part around said turn axis to said turned position.
In one or more embodiments of the present disclosure, the position of the interconnecting part is configured to be substantially the same when the movable unit is in the turned position and when the movable unit is in the closed and locked mode.
In one or more embodiments of the method, said method may comprise removing heat insulation, such as a heat insulation block, from the roof window, and arranging the actuator housing at the space, such as said actuator space, where the removed heat insulation was installed/present prior to said removal.
The present disclosure moreover relates, according to a third aspect, to a tilt and turn type roof window for a building. This tilt and turn type roof window comprises a fixation frame comprising a top frame profile, a bottom frame profile and side frame profiles. The side frame profiles extends between the top and bottom frame profiles. The tilt and turn type roof window also comprises a movable unit, wherein the movable unit comprises a unit frame and an insulated glass unit which is attached to the unit frame. The movable unit comprises a first handle. The first handle comprises a gripping part configured to be grabbed by human hand. The first handle is configured to be moved relative to the movable unit from a first handle position to a second handle position by a human user. The first handle is arranged at the bottom of the roof window. The tilt and turn type roof window moreover comprises an interconnecting part, wherein the interconnecting part interconnects said movable unit and said fixation frame. The movable unit, in a tilt mode, is configured to turn relative to the fixation frame around a tilt axis by means of at least one first hinge so as to arrange the movable unit in an open, tilted position. The tilt axis is arranged at a top part of the roof window. The interconnecting part may be configured to move together with the movable unit relative to the fixation frame in said tilt mode. The movable unit, in a turn mode, is configured to be turned around a turn axis arranged between the top part of the roof window and a bottom part of the roof window by means of second hinges so as to arrange the movable unit in a turned position. The tilt axis and the turn axis are parallel. The movable unit is supported by the interconnecting part and is configured to turn relative to the interconnecting part around said turn axis in said turn mode. The movable unit, in a third closed and locked mode, is configured be in a closed and locked position relative to the fixation frame. The first handle is configured to be in the first handle position in the third closed and locked mode. In one or more embodiments of the third aspect, the roof window may comprise a lock arrangement configured to be arranged in a locking state so that said turning of the movable unit around the turn axis is allowed while the first handle remains in said first handle position, and so that said turning of the movable unit around the turn axis is moreover allowed while the first handle is in the second handle position.
The above mentioned aspect may e.g. provide one or more advantages as previously described. For example, it may provide a user friendly roof window of the tilt and turn type where the movable unit is configured to rotate around different parallel axes in a tilt mode and in a turn mode, respectively. The roof window according to the present disclosure enables a solution that is intuitive and user friendly to the human user. Additionally, the present disclosure may provide a mechanically simple and more reliable solution. The present disclosure may also enable providing a roof window which enables a more easy and/or simple solution in relation to retrofitting of an electric actuator, for example after roof window installation.
In one or more embodiments of the third aspect, said lock arrangement may comprise at least two individually controllable locks.
In one or more embodiments of the present disclosure, the lock arrangement may comprise a first lock. This first lock may in a locked state be configured to interlock the interconnecting part and the fixation frame, so that said turning of the movable unit around the turn axis is allowed while the first handle remains in said first handle position.
In one or more embodiments of the third aspect, said lock arrangement comprises a first lock which in a locked state is configured to interlock the interconnecting part and the fixation frame at least in the turn mode, so that said turning of the movable unit around the turn axis is allowed while the first lock is in the locked state and while the first handle remains in said first handle position.
The moveable unit may be prevented from rotating around the tilt axis as a consequence of the first lock interlocking the interconnecting part to the fixation frame.
In one or more embodiments of the third aspect, the first lock, in the locked state, is configured to interlock the interconnecting part and the fixation frame in the third closed and locked mode. This may e.g. be provided so as to prevent said tilting of the movable unit.
In one or more embodiments of the third aspect, at least in the third closed and locked mode, the first handle is configured to be moved relative to the movable unit from the first handle position to the second handle position by a human user so that the first lock is arranged in the unlocked state, such as wherein the first lock is configured to be in said locked state while the first handle is in the first handle position.
In one or more embodiments of the third aspect, the first lock, in the locked state of the first lock, may be configured to interlock the interconnecting part and the fixation frame in the third closed and locked mode so as to prevent said tilting of the movable unit.
In one or more embodiments of the third aspect, the first lock may be configured to interlock the interconnecting part and the fixation frame. In some further embodiments hereof, the first lock, at least in the turn mode and when the first lock is in the locked state, is configured to interlock the interconnecting part and the fixation frame.
Since the first lock, in some embodiments of the present disclosure, may not directly interlock the movable unit and the fixation frame, the user need not to first unlock the first lock by means of e.g. the first handle before a user (by means of actuator and/or second handle) can open the window in the turn mode. Moreover, the user may neither need to pre-select in which opening mode (tilt mode or turn mode) the window should open in the next time.
In one or more embodiments of the third aspect, the first handle may be mechanically coupled to the first lock. This may provide a more simple and/or reliable control of the first lock.
In one or more embodiments of the third aspect, the lock arrangement may moreover comprise a second lock which in a locked state is configured to lock the movable unit in the third, closed and locked mode.
In one or more embodiments of the third aspect, the first lock and the second lock of the lock arrangement may be separate, and independently controllable.
In one or more embodiments of the third aspect, the roof window, such as the movable unit, comprises a second handle. In some embodiments, the second handle is configured to be operated so as to switch the second lock between the locked state and an unlocked state. For example, in some embodiments, the second handle is configured to be manually pulled or pushed with a force so as to turn the movable unit by means of said force in the turn mode to the turned position.
In one or more embodiments of the third aspect, the second handle is arranged at the top area of the roof window, such as at the top of the movable unit.
In one or more embodiments of the third aspect, the movable unit, in a fourth mode, is configured to be turned relative to the interconnecting part around said turn axis by means of the second handle while the first handle is in the second handle position and while the first lock is in an unlocked state.
In one or more embodiments of the third aspect, the roof window comprises an electrically powered actuator, wherein the electrically powered actuator is configured to provide said turning of the movable unit around the turn axis, such as while the first handle remains in said first handle position.
This may e.g. provide a solution that is more user friendly and/or aesthetically desirable.
In some embodiments, the actuator is configured to turn the movable unit around the turn axis while the first lock is in the locked state and while the first handle remains in the first handle position. The actuator may move the movable unit while the first handle is in the same (first) handle position relative to the movable unit as it may be in in the closed and locked mode.
In one or more embodiments of the third aspect, the electrically powered actuator engages between the movable unit and the interconnecting part, or engages between the movable unit and the fixation frame.
In some embodiments of the present disclosure, the electric actuator may displace the movable unit and transfer forces to the fixation frame, optionally via the interconnecting part.
If the actuator engages the movable unit via the interconnecting part this may allow that in the tilt mode the actuator may move together with the movable unit and together with the interconnecting part. This may e.g. provide that the distance to the movable unit may be constant or change less.
However if the actuator engages the movable unit directly to the fixation frame the actuator may be held by one or more hinges to follow the tilt mode. For example the actuator may be hinged co-axially with the tilt axis so as to e.g. ensure a more constant distance to the movable unit in the tilt mode.
In one or more embodiments of the third aspect, said actuator and/or said second lock of the roof window, is/are configured to keep the movable unit at a substantially closed position relative to the interconnecting part and relative to the fixation frame in said closed and locked mode.
In one or more embodiments of the third aspect, the movable unit is configured to be in the third closed and locked mode while the first handle is in the first handle position and while the actuator is in an inactive, such as a retracted, actuator state.
In one or more embodiments of the third aspect, the electrically powered actuator is fixed between the interconnecting part and a handle part of the second handle of the movable unit.
This may e.g. allow the actuator to control a lock (such as said second lock) that may be controllable by means of the second handle by moving the second handle relative to the movable unit. connected to the second handle.
In one or more embodiments of the third aspect, the electrically powered actuator, such as a motor housing of the electrically powered actuator, is hidden at an actuator space arranged between the fixation frame and the movable unit.
In one or more embodiments of the third aspect, the electrically powered actuator is arranged so that the movable unit is allowed to be manually turned around the tilt axis relative to the fixation frame in the tilt mode by means of the at least one first hinge while the first handle remains in said second handle position, such as by means of pushing the first handle.
In one or more embodiments of the third aspect, the electrically powered actuator is configured to turn the movable unit around the turn axis relative to the interconnecting part in the turn mode while the first handle remains in said second handle position.
In one or more embodiments of the third aspect, the turn axis is configured to move together with the interconnecting part when the movable unit is arranged in the tilted position.
In one or more embodiments of the third aspect, the roof window comprises a switching mechanism, The switching mechanism comprises a displaceable part which is configured to be displaced so as to control an engagement part of the first lock. The displaceable part may be displaceably attached, such as linearly displaceably attached, to the fixation frame.
This may provide a reliable and/or advantageous mechanical control of the first lock.
In one or more embodiments of the third aspect, said displaceable part of the switching mechanism may be displaceably attached to the fixation frame by means of a guide, such as a linear guide. The guide may, e.g. in some embodiments, comprise a rail, a piping, or a telescopic guide.
In one or more embodiments of the third aspect, the displaceable part of the switching mechanism may be configured to be displaced mechanically by manipulating the first handle.
This may e.g. provide advantageous and/or reliable control of the switching mechanism.
In one or more embodiments of the third aspect, the displaceable part of the switching mechanism may be configured to be displaced by means of an electric motor and/or by means of biasing means.
In one or more embodiments of the third aspect, the movable unit may be configured to be interlocked to the fixation frame in said third closed and locked mode by means of said switching mechanism, such as by means of said guide. Additionally or alternatively, the movable unit may be configured to be interlocked to the fixation frame by means of said switching mechanism, such as by means of said guide, while the movable unit is in said turn mode.
In one or more embodiments of the third aspect, the engagement part of the first lock may be configured to engage with the interconnecting part so as to lock the interconnecting part to the fixation frame, such as by means of said guide, at least while the movable unit is in said turn mode.
In one or more embodiments of the third aspect, the engagement part of the first lock may moreover be configured to engage with the interconnecting part so as to lock the interconnecting part to the fixation frame while the movable unit is in said third closed and locked mode.
In one or more embodiments of the third aspect, the movable unit is configured to open in an opening direction from a closed position when set in the tilt mode. The first handle may be mechanically coupled to the switching mechanism by means of a mechanical coupling. The movable unit may comprise a first part of the mechanical coupling, wherein the first part of the mechanical coupling is configured to disengage from a second part of the coupling when the movable unit opens in the opening direction from the closed position. In some embodiments, said switching mechanism may comprise said second part of the mechanical coupling.
This may provide a mechanically simple and reliable solution. It may also provide a robust and/or space saving solution.
In some embodiments of the present disclosure, said second part of the mechanical coupling may comprise a receiving recess facing in the opening direction, or wherein said first part of the coupling comprises a receiving recess facing in away from the opening direction. This may e.g. provide that first part of the mechanical coupling, and hence the movable unit, can open in the tilt mode and/or turn mode from the closed position. For example, in some embodiments, this may be obtained no matter the state of the switching mechanism.
In one or more embodiments of the present disclosure, the movable unit is configured to be turned relative to the interconnecting part around said turn axis by means of the actuator and/or by hand while the first handle is in the second handle position.
In some embodiments, the actuator and/or the second lock as e.g. described in more details above and/or below may or may not, instead, control the position of the movable unit relative to the interconnecting part when the movable unit is in the tilt mode. Hence, the actuator and/or the second lock may maintain the movable unit in a closed and e.g. locked mode relative to the interconnecting part.
In one or more embodiments of the third aspect, the movable unit is configured to be interlocked to the fixation frame in said third closed and locked mode by means of a switching mechanism, such as by means of a guide. Additionally or alternatively, the movable unit may be configured to be interlocked to the fixation frame by means of a switching mechanism, such as by means of a guide, while the movable unit is in said turn mode.
In one or more embodiments of the third aspect, the movable unit may be configured to be interlocked to the fixation frame in said third closed and locked mode by means of a guide, such as a linear guide. Additionally or alternatively, the movable unit may be configured to be interlocked to the fixation frame by means of a guide, such as while the movable unit is in said turn mode.
In one or more embodiments of the third aspect, a displaceable part, such as said displaceable part of the switching mechanism, may be configured to be displaced in a direction that is parallel to the longitudinal direction of the side frame profile of the fixation frame.
In one or more embodiments of the third aspect, the interconnecting part comprises an intermediate frame arranged between the fixation frame and the unit frame,
wherein the intermediate frame comprises intermediate side profiles which, at least in the closed and locked mode, are configured to extend along the longitudinal direction of the side frame profiles. In some further embodiments hereof, the intermediate frame comprises an intermediate top profile extending in a longitudinal direction which is parallel to the longitudinal direction of the top frame profile, wherein the intermediate top profile extends between and connects the intermediate side profiles.
The intermediate frame may provide advantages in relation to one or more of actuator attachment, interlocking of the movable unit in the tilt mode and/or the third closed and locked mode, and/or the like.
The intermediate frame may be U-shaped. In other embodiments, the interconnecting frame may be rectangular.
In one or more embodiments of the present disclosure, the interconnecting part may comprise an U-shaped intermediate frame which may not extend to a position between the bottom frame profile and the movable unit.
In one or more embodiments of the third aspect, the interconnecting part comprises a movable hinge arm of the at least one first hinge.
In one or more embodiments of the present disclosure, the interconnecting part may comprise a movable hinge arm of the at least one first hinge. In some embodiments, the movable hinge arm may be attached to the above mentioned intermediate frame.
In one or more embodiments of the third aspect, the interconnecting part may comprise or be a movable hinge arm of the at least one first hinge, such as a part that is unitary with the at least one first hinge.
In certain embodiments, the interconnecting part may substantially consist of a hinge arm of the at least one first hinge. In other embodiments, the hinge arm(s) of the at least one first hinge may be attached to an intermediate frame that may provide a part of the interconnecting part.
In one or more embodiments of the present disclosure, interconnecting part comprises a movable part, such as an arm, of the first hinge, a part of the second hinge and optionally an intermediate frame comprising frame profiles such as elongated frame profiles.
In one or more embodiments of the third aspect, the interconnecting part comprises elongated side members extending at both sides of the movable unit, such as wherein the elongated side members, such as a distal part of the elongated side members, comprises at least a part of the second hinges.
In one or more embodiments of the first, second and/or third aspect, the roof window is installed in a roof structure of a building. For example so that the top of the roof window is arranged at a higher vertical position than the bottom of the roof window.
In one or more embodiments of the third aspect, the lock arrangement, such as said first lock, may be configured so that the interconnecting part is configured to be maintained in a substantially fixed position relative to the fixation frame when the movable unit is rotated relative to the interconnecting part around said turn axis to said turned position.
In one or more embodiments of the third aspect, the lock arrangement, such as said first lock, may be configured so that the interconnecting part is configured to be maintained in a substantially fixed position relative to the fixation frame during the entire rotation of the movable unit relative to the interconnecting part around said turn axis to said turned position.
In one or more embodiments of the third aspect, the position of the interconnecting part is configured to be substantially the same when the movable unit is in the turned position and when the movable unit is in the closed and locked mode.
In one or more embodiments of the first and/or third aspect, the roof window is configured to be installed in a roof structure of a building. For example so that the top of the roof window is arranged at a higher vertical position than the bottom of the roof window.
The present disclosure moreover relates, in a fourth aspect, to a set comprising:

a roof window according to the first aspect or one or more embodiments thereof, and
an electrically powered actuator for installation in a predefined actuator space of the roof window, wherein the actuator comprises an actuator housing and an actuating part, such as a push-pull chain,

The present disclosure moreover relates, in a fourth aspect, to a set comprising:

a roof window according to the first aspect or one or more embodiments thereof, and,
an electrically powered actuator for installation in an actuator space of the roof window, wherein the actuator comprises an actuator housing and an actuating part, such as a push-pull chain,

It is generally understood that in some embodiments, the movable unit may be configured to open as in a roof window of the top hung type in said tilt mode.
It is generally understood that in some embodiments, the movable unit may be is configured to open as in a roof window of the centre hung type in said turn mode.
It is generally understood that in the third, closed and locked mode, the movable unit may be configured to provide a gasket pressure to one or more gaskets of the roof window, for example so as to e.g. provide water tightening between the movable unit and the fixation frame.

Description of the drawings

The present disclosure will in the following be described in greater detail with reference to the accompanying drawings:

Figs. 1-3: illustrates schematically a tilt and turn type roof window in different modes, according to various embodiments of the present disclosure,
Figs. 4A-4B: illustrates schematically a tilt and turn type roof window comprising an actuator, according to various embodiments of the present disclosure,
Figs. 5A-5D: illustrates schematically illustrates schematically a tilt and turn type roof window in different modes, according to various embodiments of the present disclosure,
Figs. 6A-6b: illustrates schematically a tilt and turn type roof window comprising a switching mechanism and where an interconnecting part comprises an intermediate frame, according to various embodiments of the present disclosure,
Fig. 7A: illustrates schematically a tilt and turn type roof window comprising a switching mechanism, in a closed and locked mode, according to one or more embodiments of the present disclosure,
Fig. 7B: illustrates schematically a tilt and turn type roof window comprising a switching mechanism, in a turn mode and where a movable unit is in a turned position, according to one or more embodiments of the present disclosure,
Fig. 7C: illustrates schematically a tilt and turn type roof window comprising a switching mechanism, in a tilt mode and where a movable unit is in a closed position, according to one or more embodiments of the present disclosure,
Fig. 7D: illustrates schematically a tilt and turn type roof window comprising a switching mechanism, in a tilt mode and where a movable unit is in a tilted position, according to one or more embodiments of the present disclosure,
Figs. 8A-8C: illustrates schematically a tilt and turn type roof window comprising a switching mechanism, according to further embodiments of the present disclosure,
Figs. 9A-9B: illustrates schematically a tilt and turn type roof window comprising a switching mechanism and displacing means, according to further embodiments of the present disclosure,
Figs. 10A-10B: illustrates schematically a tilt and turn type roof window comprising biasing means, according to embodiments of the present disclosure,
Figs. 11A-11D: illustrates schematically a tilt and turn type roof window comprising biasing means, where a movable unit is in different states according to further embodiments of the present disclosure,
Figs. 12A-12E: illustrates schematically a tilt and turn type roof window comprising biasing means interacting with a lock, according to further embodiments of the present disclosure,
Fig. 13: illustrates schematically a tilt and turn type roof window comprising two individual interconnecting parts, , according to embodiments of the present disclosure,
Fig. 14: illustrates schematically a tilt and turn type roof window comprising an interconnecting part which comprises an interconnecting frame, according to further embodiments of the present disclosure,
Fig. 15: illustrates schematically a tilt and turn type roof window comprising a lifting system, according to further embodiments of the present disclosure,
Fig. 16: illustrates schematically a switching mechanism, according to embodiments of the present disclosure,
Fig. 17: illustrates schematically a building comprising a roof structure with a tilt and turn type roof window installed therein, according to embodiments of the present disclosure, and
Fig. 18: illustrates schematically a set, wherein the set comprises a tilt and turn type roof window and an actuator configured to be retrofitted at/to the tilt and turn type roof window, according to embodiments of the present disclosure.

Detailed description

Figs. 1-3 illustrate schematically a cross section of a tilt and turn type roof window 1 for installation in a roof structure of a building (not illustrated in fig 1), according to embodiments of the present disclosure.
The roof window 1 may be configured to be of the type that is for installation in a roof structure having a roof pitch above 10°, such as a roof pitch above 15° or above 35°.
The tilt and turn type roof window 1 comprises a fixation frame 2. As illustrated in figures described further below, the fixation frame 2 may be a rectangular frame comprising an elongated top frame profile 2a, an elongated bottom frame profile 2b and elongated side frame profiles 2c (2c not illustrated in fig. 1 to improve figure understanding). The side frame profiles 2c extends between the top and bottom frame profiles 2a, 2b. The fixation frame 2 is configured to be attached to a roof structure of a building.
The roof window 1 moreover comprises a movable unit 3. The movable unit 3 may also be referred to as a movable sash, or sash, in the present document. The movable unit 3 comprises a unit frame 4 and an insulated glass unit 5 which is attached to the unit frame 4.
The unit frame 4 may be a rectangular frame comprising an elongated top unit frame profile 4a, an elongated bottom unit frame profile 4b and elongated side unit frame profiles 4c (4c not visible in fig. 1 to improve figure understanding). The side unit frame profiles 4c extends between the top and bottom unit frame profiles 2a, 2b.
It is generally understood (not illustrated) that one or more profiles 2a-2c of the fixation frame 2 and/or of the unit frame 4a-4c may be solid or hollow. In some embodiments, the one or more profiles 2a-2c of the fixation frame 2 and/or of the unit frame 4a-4c may be filled with an heat insulation material such as an expanded foam, such as a polymer foam, a natural insulation such as flax or wood insulation, a mineral wool insulation and/or the like. In other embodiments, one or more interior cavities of the respective profile(s) may be filled with air instead of a heat insulation material.
The insulated/insulating glass unit 5 may in some embodiments of the present disclosure be a conventional insulated glass unit 5 comprising a plurality of glass sheets 5a-5d, and one or more heat insulating, gas filled gaps 5x, 5y, such as gaps filled with argon. These gaps 5x, 5y are arranged between glass sheets 5a, 5b, 5c of the insulated glass unit 5. In fig. 1, the glass unit 5 is a multiple gap glass unit comprising two insulating gaps 5x, 5y separated be an intermediate glass sheet 5b. The first gap 5x is arranged between the outer glass sheet 5a and the intermediate glass sheet 5b. The second gap 5y is arranged between the intermediate glass sheet 5b and the glass sheet 5c. It is generally understood that in other embodiments, the glass unit 5 may comprise just one insulating gap 5x, or more than two insulating gaps 5x, 5y.
In some embodiments, the insulating glass unit 5 may be an insulating glass unit of the vacuum insulating type, also known as a vacuum insulated glass unit or vacuum insulated glazing. The vacuum insulated glass unit may comprise an evacuated gap 5x. A plurality of spacers (not illustrated), also known as pillars or support structures, may be distributed in the gap so as to maintain a distance between the major surfaces of the glass sheets when the gap is evacuated and sealed.
An air tight edge seal 5es enclosed the gap(s) 5x, 5y. The edge seal 5es type may vary dependent on the type of glass unit 5.
The insulating glass unit 5 may in some embodiments be laminated and hence comprise a lamination glass sheet 5d that is attached to a major surface of the adjacent glass sheet 5c by means of a lamination interlayer.
The movable unit may also comprise a cladding 21 which provides water tightening at the bottom BO of the roof window 1 when the movable unit 3 is in a closed position, see fig. 1. The cladding 21 may comprise a sheet of metal or polymer that overlaps at least one, and preferably two, sides of the fixation frame 2 bottom profile 2b.
The movable unit 3 comprises a first handle 8. The first handle 8 is arranged at the bottom BO of the roof window 1 when the window 1 is in a closed state. The first handle 8 comprises a gripping part 8a configured to be grabbed by human hand. The first handle 8 is configured to be moved relative to the movable unit 3 from a first handle position HP1 to a second handle position HP2 by a human user.
The first handle 8 is adapted to transfer a force from the user sufficient enough to tilt open and tilt close the movable unit manually. The first handle may be elongated and may have a gripping part 8a having a length above 10 cm whereby it is adapted for gripping by a complete handgrip.
In figs. 1-3, The gripping part 8a is configured to be rotated around a handle rotation axis HROT1 between the handle positions HP1, HP2. The handle rotation axis HROT1 may be non-parallel to, such as substantially perpendicular to, a plane PL1 defined by a major surface of a glass sheet of the insulating unit 5. In fig. 1, the handle 8 is in the first handle position HP1.
In fig. 1, the movable unit 3 is arranged in a closed and locked mode CLM (also referred to as a third mode or third, closed and locked mode in this document). Hence the movable unit 3 is in a closed position relative to the fixation frame 2. The movable unit 3 is hence in the closed and locked position in order to e.g. reduce or prevent rain water from entering into the building in which the roof window 1 is installed. The first handle 8 is configured to be in the first handle position HP1 in the third closed and locked mode.
In the closed and locked mode CLM, the movable unit 3 may be configured to provide a gasket pressure to one or more gaskets 23a, 23b of the roof window 1 so as to provide water tightening between the movable unit 3 and the fixation frame 2. The gaskets may e.g. be arranged between (and be attached to one of) the fixation frame 2 and the unit frame. It is understood that in the closed and locked mode CLM, the gaskets may be a deflected and/or compressed state. The gasket(s) 23a, 23b may be resilient. The gaskets 23a, 23b may be made from or comprise a polymer, such as rubber, a foam gasket and/or the like. Elongated gaskets 23a, 23b may also be arranged along sides of the window 1 (not illustrated in figs. 1-3) between the movable unit 3 and the fixation frame 2.
The movable unit 3 may moreover be arranged in a tilt mode TIM, see fig. 2. When the first handle is in the second handle position HP2, the movable unit 3 is set in the tilt mode TIM (see fig. 2).In the tilt mode TIM, the movable unit 3 is configured to tilt relative to the fixation frame 2 around a tilt axis AX1 by means of at least one first hinge 6 (not illustrated in figs. 1-3). This tilting provides that the movable unit 3 is arranged in an open, tilted position TIP, see fig. 2. A The tilt axis AX1 is arranged at a top part TO of the roof window 1.
The first tilt axis AX1 may also be considered to correspond to the tilt axis of a top hung type roof window 1. The axis AX1 may in some embodiments of the present disclosure be arranged at the upper 1/6, such as the upper 1/10 or the upper 1/15 of the roof window nearest the top TO end of the roof window.
In fig. 2, the handle 8 has been controlled by a user to the second handle position HP2 so as to put the movable unit in the tilt mode TIM. This may directly or indirectly control a lock (not illustrated in fig. 1) so as to unlock the movable unit 3 from the closed and locked position.
The first handle 8 may be used by a user so as to turn the movable unit 3 of the roof window 1 around the first tilt axis AX1. Hence, when opening the movable unit 3 by means of the first handle 8 to the tilted position TIP, the movable unit 3 is top hung. The gripping part 8a of the first handle 8 is configured to be manually pulled or pushed with a force by human hand so as to turn the movable unit by means of said force around the tilt axis AX1, see fig. 2.
The roof window 1 may comprise a lifting system (not illustrated in figs. 1-3, see e.g. fig. 15.), for example a lifting system comprising one or more springs. The lifting system is configured to assist the user in opening the movable unit in the tilt mode. The lifting system may be adjustable so as to enable adjustment of the lifting system's lifting performance dependent on the installation angle of the roof window. The installation angle may depend on the roof pitch.
When the movable unit 3 is rotated around the tilt axis AX1, this also causes a rotation of the turn axis AX2 around the tilt axis AX1. This is caused by that the second hinges (ref. 7, not illustrated in figs. 1-3), which provide/define the turn axis AX2, are rotated around the tilt axis AX1 during the tilting of the movable unit 3. See also e.g. fig. 5B.
The movable unit 3 may moreover be arranged in a turn mode TUM, see fig. 3 and the dashed arrows thereof. In the turn mode TUM, the movable unit 3 is configured to turn around a second turn axis AX2.
The turn axis AX2 is arranged between the top part TO of the roof window 1 and the bottom part BO of the roof window 1, such as between the top unit frame profile 4a and the bottom unit frame profile 4b. The turn axis AX2 may or may not be arranged substantially halfway of the length of the side profiles of the unit frame 4. In some embodiments, the longitudinal direction of the turn axis AX2 may extend between the side unit frame profiles 4c (See e.g. figs 6a-6b) of the unit frame 4. In some embodiments, the longitudinal direction of the turn axis AX2 may be perpendicular to the longitudinal direction of the side profiles of the unit frame 4.
The turning of the movable unit 3 is obtained by means of second hinges 7 (not illustrated in figs 1-3). The movable unit 3 is turned around the turn axis AX2 so as to arrange the movable unit 3 in a turned position TUP (see fig. 3).
In some embodiments of the present disclosure, as e.g. illustrated in figs. 1-3, the tilt and turn type roof window 1 may comprise a second handle 18. The second handle 18 may be arranged at the top TO of the roof window 1 at the top end TE of the movable unit. The movable unit 3 may comprise the second handle 18. The second handle 18 may comprise a gripping part 18a. The gripping part 18a is configured to be manually pulled or pushed with a force by human hand so as to turn the movable unit by means of said force around the turn axis AX2, see fig. 3.
The first handle 8 is arranged at the bottom end BE of the movable unit 3. The second handle 18 is arranged at the top end TE of the movable unit 3.
The top end TE of the movable unit 3 is configured to be arranged at the top TO part of the roof window 1 or be proximate the top TO part of the roof window 1 when the movable unit is in the closed and locked mode CLM. The bottom end BE of the movable unit 3 is configured to be arranged at the bottom BO part of the roof window 1 or be proximate the bottom BO part of the roof window 1 when the movable unit 3 is in the closed and locked mode CLM.
It is generally understood that the second handle 18 may as illustrated be arranged at the top TO of the roof window, such as at the top end TE of the movable unit 3, whereas the first handle 8 may be arranged at the bottom BO of the roof window 1, such as at the bottom end BE of the movable unit 3. This may provide a user friendly solution as the user may hence not risk getting hit by the top end TE of the movable unit 3 in the turn mode TUM.
In the turn mode TUM, the movable unit 3 is configured to be turned, e.g. by hand by means of a second handle 18 and/or by means of an actuator 9 (not illustrated in figs 1-3), relative to the fixation frame 2 around the turn axis AX2 to the turned position TUP.
It is understood that the second turn axis AX2 may be considered the turn axis of a centre hung type roof window. Hence, when opening the movable unit 3 (Fig. 3) from the closed and locked state (Fig. 1) by means of the second handle 18 or an actuator, the movable unit 3 is considered centre hung. At the top TO of the roof window, the top end of the movable unit 3 is configured to move inwards towards the interior of the building interior INT, whereas the bottom end of the movable unit 3 is configured to move outwards, when the movable unit is opened in the turn mode.
In the tilt mode, the bottom BE end of the movable unit 3 is configured to move outwards (see fig. 2). In the turn mode, however, the bottom BE end of the movable unit 3 is configured move outwards and the top end TE of the movable unit 3 is configured to move inward towards/onto the building interior. See fig. 3.
Hence, as illustrated in figs. 1-3 and several figures described further below, the movable unit 3 may be tilted and turned, respectively, around different axes, i.e. the tilt axis AX1 and turn axis AX2. The tilt axis AX1 and the turn axis AX2 are substantially parallel.
The second handle 18 may be used by a user and/or an actuator so as to turn the roof window around the second turn axis AX2.
The gripping part 18a of the second handle 18 may be configured to be manually pulled or pushed with a force by human hand so as to turn the movable unit 3 by means of said force around the tilt axis AX1, see fig. 2.
As illustrated in e.g. figs. 1-3, the tilt and turn type roof window 1 comprises an interconnecting part 11. The interconnecting part 11 interconnects the movable unit 3 and said fixation frame 2.
The interconnecting part 11 may or may not comprise an intermediate frame. The interconnecting part 11 is movably attached relative to the fixation frame 2. In fig. 1 and some of the figures described further below, the interconnecting part 11 comprises an intermediate frame. In other embodiments, the interconnecting part 11 may comprise or consist of a hinge 6 part, such as a part of a hinge 6 of the roof window 1. The hinge 6 is not illustrate din fig. 1 but is described in more details further below. Also, various embodiments of the interconnecting part 11 are described in more details further below.
The interconnecting part 11 is configured to move together with the movable unit 3 relative to the fixation frame 2 in said tilt mode TIM. The interconnecting part 11 may hence be hinged to the fixation frame by means of one or more first hinges 6, and the movable unit may be hinged to the interconnecting part 11 by means of second hinges 7. The hinges 6, 7 are not illustrated in figs. 1-3, see figures described further below.
The movable unit 3 is supported by the interconnecting part 11 and is configured to move relative to the interconnecting part 11 around said turn axis AX2 in the turn mode TUM. See also figures described further below.
In some embodiments, the movable unit 3 may be tilted around the axis AX1 While the turn axis remains substantially unmoved.
In some embodiments, the movable unit 3 may be tilted around the turn axis AX2 while the interconnecting part 11 remains substantially unmoved.
In some embodiments, the movable unit 3 may simultaneously be in both a tilted position TIP and a turned position TUP (not illustrated in figs 1-3). This may be obtained by rotating the interconnecting part 11, and hence the second hinges 7, around the tilt axis AX1 by means of the one or more first hinges 6, and moreover rotating the movable unit 3 around the turn axis AX2 by means of the second hinges 7.
A lock 15 may be configured to interlock the movable unit 3 and the interconnecting part 11. This may be the case when the movable unit 3 is in the closed and locked mode (Fig. 1). The lock 15 may in some embodiments also be configured to interlock the movable unit 3 and the interconnecting part 11 when the movable unit 3 is in the tilt mode (Fig. 2).
In figs. 1-3, the roof window comprises a mechanical lock comprising a striker plate 15b attached to one of the interconnecting part 11 or the movable unit 3, such as the unit frame 4. Additionally or alternatively, the interlocking of the interconnecting part 11 and the movable unit 3 may be provided/obtained by means of a self locking actuator (not illustrated in figs 1-3, see e.g. figs. 4A-4B).
It is understood that in some embodiments of the present disclosure, the lock 15 may be omitted, and a self locking actuator may be used instead for maintaining the movable unit 3 interlocked to the interconnecting part 11 in the closed position (Fig.1) and/or in the tilt mode TIM (Fig. 2).
In still further embodiments of the present disclosure, the lock 15 may be provided instead of an actuator.
In further embodiments of the present disclosure, an actuator 9 may control the lock 15 by means of controlling the second handle 18, such as by pushing a ventilation flap 18x of, or connected to, the second handle 18, or by pushing the gripping part 18a.
The second handle 18 is configured to be in a first handle position HP11 in the third closed and locked mode, so that the lock 15 interlocks the movable unit and the interconnecting part 11.
The second handle 18 may be configured to be controlled by a human user to a second handle position HP12 (fig. 3) so that the lock 15 is arranged in an unlocked state, thereby setting the movable unit 3 in a turn mode TUM. This enables that a user may pull the handle to unlock the lock 15, and thereby turn the movable unit 3 around the turn axis AX2.
The second handle 18 be configured to be in the first handle position HP11 when the movable unit 3 is in the tilt mode TIM (Fig. 2), so that the lock 15 (if present) interlocks the movable unit 3 and the interconnecting part 11. If the lock 15 is set in an unlocked state (Fig. 3) by means the handle 18 (HP12) and/or by means of an actuator, the movable unit 3 may also be set in the turn mode TUM so as to be allowed to turn around the turn axis AX2.
In fig. 3, the lock 15 has been put into an unlocked state and the movable unit 3 has been rotated around the turn axis AX2 to a turned position TUP.
As illustrated in fig. 3, the lock 15 may in some embodiments comprise a locking part 15b that is configured to be controlled by the second handle 18. A lock control part 15a is mechanically connected to a locking part 15b. The locking part 15b is configured to engage with a striker plate 15c (Figs. 1 and 2). hence, when pulling the second handle 18, it moves relative to the movable unit 3, and thereby displaces the lock control part 15a. This provides that the lock 15 switches from a locked state (see fig. 1 and 2) to an unlocked state (see fig. 3). In the unlocked state, the locking part has been disengaged from the striker plate 15c. In the locked state, the locking part 15b is engaged with the striker plate (Fig. 1).
The roof window 1 comprises a lock (12, 25 - not illustrated in fig. 1) that enables the movable unit 3 to open by operating the second handle 18 by hand, or by means of an actuator, without the need of putting the first handle 8 in the second handle position HP1. The first handle 8 may hence remain in the same position HP1 when the opening of the movable unit 3 in the turn mode (fig. 3) is initiated, as it is in when the movable unit 3 is in a closed and locked state (Fig. 1). Various embodiments of this lock 12, 25, also called first lock in the present document, is described in more details further below according to various embodiments of the present disclosure.
Figs. 4A-4B illustrates schematically and in cross section a tilt and turn type roof window 1, according to embodiments of the present disclosure. The roof window 1 here comprises an actuator for opening the movable unit 3 in the turn mode, See also fig. 3. The roof window 1 may be substantially similar to the roof window of figs. 1-3 described above.
In fig. 4A, the roof window 1 is in the closed and locked mode. The window 1 comprises an actuator 9. The actuator 9 may e.g. be an electrically driven actuator. The electrically driven/powered actuator 9 is electrically driven, e.g. by mains or by a battery such as a rechargeable battery. In some embodiments, the actuator comprises an actuator housing 9a. a movable actuating part 9b is configured to be moved by an electric motor in the actuator housing 9a, e.g. through a gear which may be self locking. For example worm gears or spindles can be self locking. Or for example the use of a magnet brake can provide a self locking actuator. The battery and a motor controller for controlling the electric motor may also be present in the actuator housing. In some embodiments, the battery of the actuator 9 may be recharged by a photovoltaic panel (not illustrated) arranged at the window 1.
The movable actuating part 9b is moved by the electric motor of the actuator 9 so as to turn the movable unit 3 around the axis AX2 in the turn mode TUM. The movable actuating part 9b may e.g. comprise a chain, such as a push-pull chain, It may comprise a push-pull rod, push-pull arm, a piston part, a spindle and/or the like. The actuator may be a linear actuator.
The actuator 9 is configured to provide the turning of the movable unit 3 around the turn axis/second axis AX2 while the first handle 8 remains in the first handle position HP1. See fig. 4B. The actuator 9 provides a pushing force F1 so as to turn the movable unit in the turn mode from the closed position (Fig. 4A) to the open turned position TUP. An oppositely directed force provided by the actuator 9 moves the movable unit 3 to the closed position (Fig. 4A) from the open turned position TUP (Fig. 4B).
In some embodiments, the actuator 9 is self locking. This may be provided by a means of the locking mechanism at or in the actuator 9, and/or by means of a gearing at the actuator. In other embodiments, the actuator 9 may not be self locking and the movable unit may be locked to the interconnecting part 11 by means of a lock 5 as illustrated in e.g. figs. 1-3.
A user (e.g. by means of a remote control), a timer, a sensor and/or the like (not illustrated), may control the window 1 from a remote position so as to open or close the movable unit 3 (around turn axis AX2) by means of the electrically powered actuator 9. The window 1 may additionally or alternatively comprise a rain sensor that may be used as input for activating the actuator 9 to close the movable unit from the turned position to the closed and locked mode CLM in case of rain.
The actuator 9 may be self locking and/or may have an optional second/further lock which is sequentially operated by the actuator 9 itself.
In some embodiments, the actuator 9 may additionally or alternatively be configured to control the lock 15 (see figs. 1-3 - not illustrated in figs 4A-4B). The lock 15 is configured to interlock the interconnecting part 11 and the movable unit 3. Hence, the actuator 9 may directly or indirectly put the lock 15 in an unlocked state when the actuator starts to open the movable unit 3 in the turn mode TUM. The lock 15 may directly or indirectly interlock the interconnecting part 11 and the movable unit 3.
In some embodiments (not illustrated), the second handle 18 may be omitted and be replaced by the actuator 9. Hence, when the movable unit 3 is opened automatically by the actuator 9, the actuator opens the movable unit 3 in the turn mode TUM (fig. 4B), whereas, the first handle 8 may be used for manually opening the movable unit 3, in that case in the top hung tilt mode (fig. 2).
However, in both the case where the second handle 18 is present, and in the case where the second handle 18 is omitted, the movable unit 3 may be rotated by hand too in turn mode TUM, so as to rotate the movable unit 3 so that the major surface of the glass unit 5 that faces the exterior of the building when the movable unit is in the closed position will at least partly face the interior INT of the building. This makes cleaning of the glass unit 5 surface easier. In some embodiments, in the turn mode TUM, the movable unit 3 may be configured to turn at least 100°, such as at least 130° relative to a closed position. In some embodiments, in the turn mode TUM, the movable unit 3 may be configured to turn between 90° and 180°, such as between 100° and 160°, such as between 130° and 150°, relative to a closed position.
Generally, if the movable unit 3 is rotated by hand in the turn mode TUM (Figs. 3 and 4B), e.g. by pulling the second handle 18, the movable unit 3 may be able to do this without being connected to the actuator 9. Here, a mechanism, such as a gripping mechanism, may be arranged at the window 1. This mechanism may be configured so that a pushing by the actuator 9 provides that the actuator part 9b engages with the movable unit 3 such as a part 18x of the handle 18, due to the mechanism, whereas the movable unit 3, such as the part 18x of the handle 18x does not engage with the actuator 9 when pulling the handle 18. Hence, when pulling the handle 18, the movable unit 3, such as the handle 18, is disengaged from the actuator 9.
As can also be seen in figs 4A and 4B, the first handle 8 is in the first handle position HP1 in both the closed and locked mode CLM (Fig. 4A) and in the turn mode TUM (Fig. 4B).
The actuator 9 and/or the lock 15 is/are configured to maintain the movable unit 3 in the closed and locked position in the closed and locked mode CLM relative to the fixation frame 2 and relative to the interconnecting part 11.
The movable unit 3 is configured to be in the third closed and locked mode CLM (Fig. 4A) while the first handle 8 is in the first handle position HP1 and while the actuator 9 is in an inactive, such as a retracted, actuator state.
The movable unit 3 is moreover configured to be turned in the turn mode (TUM) to the turned position TUP by means of the actuator (Fig. 4B) while the first handle 8 is in the first handle position HP1. Here, the actuator 9 is in an active, such as an extended, actuator state.
For maintaining the movable unit 3 in the third closed and locked mode CLM, another lock 25 may be provided which is not illustrated in figs 1A-4B. Various embodiments of this other lock 25, 12 is described in more details below. In the present document, this other lock 25 may also be referred to as a first lock 25, whereas the lock 15 described above, if present, may be referred to as the second lock.
The actuator, including an actuator housing 9a, may move together with the movable unit 3 and the interconnecting part 11 when the movable unit 3 is turned around the first axis AX1. Thids is however not illustrated in figs 4A-4B.
As can be seen, the fixation frame 2 may surround the unit frame 4 in the closed and locked mode CLM. Parts 11a, 11b, 11c, 11 of the interconnecting part 11 may be placed between the fixation frame 2 and the unit frame 4 in the closed and locked mode CLM.
In figs. 4A-4B, the electrically powered actuator is arranged between the movable unit 3 and the interconnecting part 11, 11a, 11b. In other embodiments (not illustrated in figs. 4A-4B), the electrically powered actuator 9 may be arranged between the movable unit and the fixation frame.
The electrically powered actuator 9 may engage between the movable unit 3 and the fixation frame 2, 2a, such as between the movable unit 3 and the interconnecting part 11.
In figs. 4A-4B, the electrically powered actuator 9 engages between the movable unit 3 and the interconnecting part 11. This may help to provide that in the tilt mode TIM, the actuator 9 may move together with the movable unit 3 and together with the interconnecting part 11. This may e.g. provide that the distance to the movable unit may be constant or change less. The actuator may here engage between the movable unit 3 and the interconnecting part 11 so as to enable that the actuator can move the movable unit 3 relative to the interconnecting part 11 around the turn axis AX2.
If the actuator 9 engages the movable unit 3 directly to the fixation frame 2 (not illustrated), the actuator 9 may be held by one or more hinges to follow the tilt mode. For example the actuator 9 may be substantially co-axially hinged with the tilt axis AX1 so as to e.g. ensure a more constant distance to the movable unit 3 in the tilt mode TIM.
It is generally understood that in some embodiments (not illustrated in figs. 4A-4B), the actuator housing 9a may be attached by means of a hinged connection to the frame 2 or interconnecting part 11. If the actuator housing 9a is instead arranged at the movable unit 3, this may be provided by means of a hinged connection. In additional or alternative embodiments, actuator part 9b may engage to the movable unit by means of a hinged connection. In other embodiments, the actuator part 9b may engage to the frame 2 or interconnecting part 11 by means of a hinged connection.
Figs. 5A-5E illustrates schematically a tilt and turn type roof window 1 comprising the first lock 25, according to various embodiments of the present disclosure.
In fig. 5A, the window 1 is in the third closed and locked mode CLM. Here, the actuator 9 and/or a second lock 15 (not illustrated in figs 5A-5C) maintains the movable unit 3 in a closed position relative to the interconnecting part 11.
In fig. 5A, the first lock 25 is in a locked state to interlock the interconnecting part 11 and the fixation frame 2. This is provided so as to maintain the interconnecting part 11, and hence the movable unit 3 (due to the actuator), in the closed and locked mode. However, it is here noted that the first lock 25 may not lock the movable unit 3 directly to the fixation frame 2. The first handle 8 is in the first handle position relative to the frame.
In fig. 5b, the first handle 8 has been moved to the second handle position HP2 by a human user. This provides that the first lock 25 switches to an unlocked state. Thereby, the interconnecting part 11 and the fixation frame 2 are no longer interlocked. Hence, a user may push (e.g. by means of the first handle 8) the movable unit 3, which is now in the tilt mode TIM, so as to turn the movable unit 3 (and the interconnecting part) around the tilt axis AX1 to the tilted position TIP.
The movable unit 3 and the interconnecting part 11 may still be interlocked by means of a second lock 15 (not illustrated), and/or by means of the actuator 9 in the tilt mode TIM and in the tilted position TIP.
It is generally understood that the roof window 1 may comprise one or more of the first lock 25. In the examples illustrated in the figs. 5A-5C and figures described further below, the window 1 comprises two first locks 25. These may be placed at a first and second side of the window 1, respectively. The window may however also in other embodiments comprise just one first lock 25, or may comprise more than two first locks.
It is noted that the first lock 25 may help to provide safety against burglary and may make it hard to tilt the roof window. In some embodiments, the first lock 25 and the lock 15 or actuator 9 may substitute/be provided instead of a lock that directly engages the movable unit 3 and the fixation frame 2. Hence, in some embodiments of the present disclosure, the roof window may not comprise an integrated lock which directly engages the movable unit 3 and the fixation frame 2.
In fig. 5C, the movable unit 3 has been switched from the closed and locked mode CLM of fig. 5A, and to the turn mode TUM. As can be seen, the first handle 8 does not need to first be moved to the second handle position HP2 to allow turning the movable unit 3 around the turn axis AX2. This is caused by that the movable unit 3 is not locked directly to the fixation frame 2 by means of a lock connected to the handle 8. Instead it is the interconnecting part 11 that is locked (by actuator 9 and/or lock 15) to the movable unit 3 and it is also the interconnecting part 11 that is locked to the fixation frame 2 by means of the first lock 25.
This provides that the handle 8 can be maintained in the first handle position 8 in the turn mode TUM, since the interconnecting part 11 may, if desired, remain interlocked to the fixation frame 2 in the turn mode TUM, and hence, the handle 8 need not be operated.
In fig. 5C, the movable unit 3 is turned to the turned position TUP relative to the fixation frame 2 and relative to the interconnecting part 11 by means of the actuator 9. Alternatively the turning around axis AX2 (Fig. 5C) may be obtained by hand by a user using a second handle 18 (not illustrated in figs. 5A-5C) of the window 1 as e.g. described above in relation to figs. 1-3. In some embodiments, however, the second handle 18 may be omitted from the window 1.
The interconnecting part 11 may be maintained in a substantially fixed position relative to the fixation frame 2, e.g. by means of the first lock 25, when the movable unit 3 is rotated relative to the interconnecting part 11 around the turn axis AX2 to the turned position. This may be the case when the movable unit 3 is opened around turn axis AX2 from a closed position, e.g. by means of the actuator 3 or by a user via the second handle 18.
In some embodiments, the interconnecting part 11 is maintained in a substantially fixed position relative to the fixation frame, e.g. by means of the first lock 25, during substantially the entire rotation of the movable unit 3 relative to the interconnecting part 11 around the turn axis AX2 to the turned position TUP. This may be the case when the movable unit 3 is opened around turn axis AX2 from a closed position, e.g. by means of the actuator 3 or by a user via the second handle 18.
In some embodiments, the position of the interconnecting part 11 may be substantially the same when the movable unit 3 is in the turned position TUP and when the movable unit 3 is in the closed and locked mode CLM.
Figs. 5D-5E illustrates schematically a tilt and turn type roof window 1 according to further embodiments of the present disclosure. In both embodiments, the movable unit 3 is both in a tilt mode TIM and a turn mode TUM. This may also, in the present document, be referred to as a fourth mode.
In both figs. 5D and 5E, the first lock 25 is in an unlocked state, and the handle 8 is in the second handle position HP2 (See e.g. fig. 5B). The movable unit 3 and the interconnecting part 11 have been rotated around the tilt axis AX1 to a tilted position TIP. E.g. by means of the handle 8.
It is understood that the tilted position TIP may be provided by means of the interconnecting part 11 by an angular position of the interconnecting part 11 relative to the fixation frame 2.
In both figs. 5D and 5E, the movable unit 3 is in turn mode TUM and have been turned relative to the interconnecting part 11 around the turn axis AX2. In fig. 5D, this is obtained by means of the actuator 9. In fig. 5E it is obtained manually by means of the second handle 18. In fig. 5E, the second handle 18 may have been manually operated by hand, and the actuator part 9b may have been released/disconnected from the movable unit 3, such as disconnected from the handle.
In figs. 5D and 5E, the actuator 9 may or may not be self locking. If the actuator 9 is self locking, a second lock 15 at the roof window 1 for interlocking the interconnecting part 11 and the movable unit 3 in closed and locked position may be omitted. In other embodiments, such a second lock 15 may be present even though the actuator 9 is present and is self locking. For example if the actuator 9 has been retrofitted to the window 1 and/or in order to improve security. The second lock 15 may be actuated by means of the handle 18 (if present), see e.g. figs. 4A-4B.
In some embodiments, the actuator 9 may be attached to a top unit 4 frame profile 4A and to an intermediate top profile 11c (not illustrated in figs. 5A-5E) of the interconnecting part 11 - see e.g. figs. 6A-6B.
It is generally understood that the actuator 9 may be arranged so that the movable unit 3 is allowed to be manually turned around the tilt axis AX1 relative to the fixation frame 2 in the tilt mode TIM by means of at least one first hinge 6 while the first handle 8 remains in said second handle position HP2.
In some embodiments of the present disclosure the actuator 9 may be configured to control a second lock, which second lock 15 is configured to interlock the fixation frame 2 to the movable unit 3. In the figures described in relation to figs 1-4B, the actuator 9 is however configured to control the second lock 15 which is configured to interlock the movable unit 3 to the interconnecting part 11.
In the fourth mode, the movable unit 3 may be configured to be turned relative to the interconnecting part 11 around said turn axis AX2 by means of the second handle 18 and/or by means of the actuator (Fig. 5D) while the first handle 8 is in the second handle position HP2 and while the first lock 12, 12a, 25 is in an unlocked state.
In figs. 5A-5E, the roof window 1 comprises the actuator 9 at the window top TO. In some embodiments, however, the actuator 9 may be omitted, and e.g. retrofitted later on at the roof window, see e.g. fig. 18.
If the actuator 9 is not present, a human user may use the second handle 18, which may be arranged at the roof window top TO, such as at the top end TE of the movable unit 3, for turning the movable unit 3 around the turn axis AX2. The user may moreover use the first handle 8 at the roof window bottom BO for turning the movable unit around the tilt axis AX1.
If the actuator 9 is present, a human user may in some embodiments still use the second handle 18 (if present) for turning the movable unit 3 around the turn axis AX2. The user may moreover still use the first handle 8 at the roof window bottom BO for turning the movable unit around the tilt axis AX1. Here, the actuator may also turn the movable unit 3 around the turn axis AX2.
Figs. 6A-6B illustrates schematically a tilt and turn type roof window 1 comprising the first lock 25, according to further embodiments of the present disclosure. The roof window 1 may be a window as illustrated in one or more of figs. 1-5C. The window 1 comprises the movable unit 3 comprising the insulating glass unit 3 and the unit frame 4. The window 1 also comprises the interconnecting part 11 and the fixation frame 2.
The fixation frame 2 comprises the elongated frame profiles 2a-2c. The unit frame 4 comprises the unit frame profiles 4a-4c.
The interconnecting part 11 is attached to the fixation frame 2 by means of one or more hinges 6. In fig. 6A-6B, the roof window 1 comprises two hinges 6, but in other embodiments, the roof window may comprise just one hinge 6 or more than two of the hinges 6. The one or more hinges 6 is/are configured to enable the movable unit 3 to turn relative to the fixation frame 2 around the tilt axis AX1 so that the movable unit 3 can be tilted in a tilt mode relative to the frame 2 as e.g. described above (see e.g. figs 2 or 5b). The one or more hinges 6 may also be considered top hinges of the roof window 1.
The roof window 1 moreover comprises second hinges 7. The movable unit 3 is connected to the interconnecting part 11 by means of the second hinges 7. The second hinges 7 allows the movable unit 3 to turn in the turn mode TUM around the turn axis AX2. The turn axis AX2 and the tilt axis AX1 are parallel. The movable unit 3 is supported by, such as carried by, the interconnecting part 11 by means of the second hinges 7 in the turned position (see figs. 3 and 5C). The movable unit 3 is configured to be supported by the fixation frame 2 through the interconnecting part 11.
When the movable unit 3 is tilted to the tilted position (Fig. 2 or 5B), the movable unit 3 is carried by the interconnecting part 11, which is carried by the fixation frame 2 through the hinge(s) 6.
The roof window 1 comprises the first lock 25, in this case two first locks 25. The first lock 25 is controllable by means of the first handle 8. The first handle 8 is mechanically coupled to the first lock 25. Hence, switching the first handle between the first handle position HP1 (fig. 6A), and the second handle position HP2 (fig. 6B), the user can switch the state of the first lock 25 between a locked state (fig. 6A) and an unlocked state (6B).
The first lock 25 may be considered a first primary lock. The second lock 15 and/or the actuator 9 may be or provide a second primary lock. These first and second primary locks may be configured so as to together maintain the roof window in said third closed and locked mode. Hence, in some embodiments, no further locks of the roof window may be controlled by the first or second handle to directly interlock the fixation frame 2 and the movable unit 3.
In figs. 6A-6B, the roof window 1 comprises a switching mechanism 10. The switching mechanism 10 is configured to be displaced so as to control an engagement part 12 of the first lock 25. The switching mechanism 10 is displaceably attached 19, such as linearly displaceably attached, to the fixation frame 2 by means of a guide 19, such as a linear guide. In other embodiments, the guide may not be a linear guide.
The guide 19 may, e.g. in some embodiments, comprise e.g. a rail, a piping and/or a telescopic guide.
It is generally understood that one or more guides may be provided at one or both sides of the roof window.
The guide 19 is attached to the fixation frame 2 by means of one or more fasteners 9 (not illustrated), such as comprising one or more of adhesive, mechanical fastener(s) such as screw(s), nail(s), pop rivet(s), a clamp, by means of a snap lock and/or the like. In some embodiments, the guide 19 may be configured to be fixed and unmovable relative to the frame 2. A displaceable push-pull device 10a, such as comprising one or more rods, is displaceably attached to the fixated guide 19. The handle 8 is mechanically coupled (14a, 14b) to the push-pull device 10a so as to control the push-pull device's 10a state/position. The push-pull device 10a comprises or is attached to the engagement part 12 of the lock 25. When the handle 8 is in the first handle position HP1, the engagement part 12 mechanically engages with an engagement part 12a of the interconnecting part 11. This interlocks the interconnecting part 11 to the frame through the push-pull device 10a and the guide 19. The movable unit 3 is in this case able to be in the closed and locked mode CLM or in the turn mode TUM (i.e. centre hung configuration) indicated by the dash-dotted rectangle representing the movable unit 3 being rotated to the turned position around turn axis AX2).
The movable unit 3 comprises one or more handle connectors 8b. The handle connector(s) 8b is/are displaceably attached to the unit frame 4, such as to the bottom frame profile 4b. the unit frame 4 may hide the handle connector(s) 8b. The handle connector(s) 8b is/are configured to be displaced relative to the movable unit 3 by means of the handle 8a, e.g. through/by means of the switching mechanism 10.
In fig. 6A, the movable unit 3 is interlocked to the fixation frame 2 through the interconnecting part 11 by means of the engagement parts 12 and 12a, the push-pull device 10a and the guide 19 while the movable unit 3 is in the turn mode TUM. Engagement part 12 or 12a of the lock 25 may e.g. comprise a latch.
The movable unit 3 is also configured to be interlocked to the fixation frame 2 through the interconnecting part 11 by means of the engagement parts 12 and 12a, the push-pull device 10a and the guide 19 while the movable unit 3 is in the closed and locked mode.
When a user manually put the handle 8 to the second handle position HP2 (see fig. 6B), this displaces the push-pull device 10a of the switching mechanism 10, and hereby displaces the engagement part 12 to an unengaged position, so that the first lock 25 is set in an unlocked state. The parts 12, 12a hereby disengages. The movable unit 3 is hereby put in the tilt mode TIM. Hence, the interconnecting part 11,and thus also the movable unit 3, can now turn "top hung" around the tilt axis AX1, since the interconnecting part 11 is now released to move relative to the fixation frame 2 by means of the hinge(s) 6, due to the disengagement of the parts 12, 12a. A user may hence provide an opening force to the first handle 8 while the handle is in the second handle position HP2, and thereby open the movable unit 3 around the axis AX1 to a tilted position.
The switching mechanism 10 may be substantially hidden when the movable unit is in a closed and locked mode. At least parts of the switching mechanism 10, such as a part of the push-pull device 10a and/or fixed guide 19 may also be hidden inside a frame profile of the fixation frame 2.
The movable unit 3 is configured to open in an opening direction (ODR - see fig 2) from a closed position CP (see fig. 2) when set in the tilt mode TIM.
As illustrated in figs. 6A-6B, the first handle 8 may be mechanically coupled to the switching mechanism 10 by means of a mechanical coupling 14a, 14b. The movable unit 3 may comprise a first part 14a of the mechanical coupling. Hence, the first part 14a of the mechanical coupling moves together with the movable unit 3 when it opens in tilt mode and/or turn mode.
The first part 14a of the mechanical coupling is movable relative to the movable unit 3, and is controlled by the handle 8. When the movable unit 3 is in the closed and locked mode, the first part 14a of the mechanical coupling is engaged with the second part 14b of the mechanical coupling. The handle 8 has been moved relative to the movable unit so as to put the handle 8 in the first handle position HP1. This handle position HP1 is configured to provide that the first part 14a has displaced the second part 14b to a locking position so that the push-pull device 10a is displaced, thereby providing that the engagement parts 12, 12a engages and interlocks the interconnecting part 11 to the fixation frame 2 through the guide 19. See fig. 6A.
In some embodiments, the push-pull device 10a may comprise a rod, a spindle, a piston part and/or the like.
When the handle 8 is moved relative to the movable unit 3 to the second handle position HP2 (fig. 6B), this handle position HP2 is configured to provide that the first part 14a displaces the second part 14b to an unlocking position so that the push-pull device 10a is displaced, thereby providing that the engagement parts 12, 12a disengages. This provides that the interconnecting part 11 is no longer interlocked to the fixation frame 2 through the guide 19. Thereby a user may turn the movable unit 3 around the tilt axis AX1. The switching mechanism 10 may comprise the second part 14b of the coupling.
The mechanical coupling 14a, 14b may e.g. comprise a pasquil which enables control of the switching mechanism 10 so as to provide displacement of the push-pull device 10a in the longitudinal direction of the side frame profile(s) 2c by moving the handle 8, such as rotating the handle 8, relative to the movable unit 3.
In the figures described above, the handle 8 is illustrated to be a handle of the type that is configured to be rotated round a handle rotation axis HROT1 which may be non-parallel to, such as substantially perpendicular to, a plane PL1 defined by a major surface of a glass sheet of the insulating unit 5. See fig. 1. However, in other embodiments, another handle type may be provided instead. For example, the first handle may in some embodiments (not illustrated) be a handle 8 that is configured to be rotated around an axis that is parallel to a plane PL1 defined by a major surface of a glass sheet of the insulating unit 5. In some embodiments, the first handle 8 may be a handle 8 that is configured to be rotated around an axis that is parallel to the longitudinal direction of the bottom unit frame profile 4b.
As illustrated in e.g. figs. 6A-6B, the interconnecting part 11 may comprises an intermediate frame extending between the fixation frame 2 and the unit frame 4. The intermediate frame comprises an intermediate top profile 11c extending in a longitudinal direction which is parallel to the longitudinal direction of the top frame profile 2a and the profile 4c.
The intermediate frame 11 comprises intermediate side profiles 11a, 11b extending in a longitudinal direction which is parallel to the longitudinal direction of the side frame profiles 2c and 4c. The intermediate side profiles 11a, 11b of the interconnecting frame 11 may be attached to the hinge(s) 8, and/or a hinge 6 may be attached to the intermediate top profile 11c.
In figs. 6A-6B and some of the figures described below, such as 8A-8C and 10A-10B, the intermediate frame is U-shaped so as to not extend to a position between the bottom frame profile 2b and a bottom frame profile 4a of the movable unit 3.
The elongated side profiles 11a, 11b extending at both sides of the movable unit 3 comprises a part of the second hinges 7, This part may be arranged at a distal part of the elongated members 11a, 11b.
The intermediate frame member 11c which interconnects the elongated members 11a, 11b at the top part TO of the roof window 1. In some embodiments, the actuator may be attached to the intermediate frame member 11c. In other embodiments, the actuator 9 may be attached to one of the side profiles 11a, 11b of the intermediate frame 11, or to a hinge part of the hinge 6 (not illustrated).
In some embodiments, the intermediate frame member 11c which interconnects the elongated members 11a, 11b at the top part TO of the roof window 1 may be omitted. The elongated members 11a, 11b at the roof window 1 sides may in that case be individually movable, but may be interconnected through the hinges 7 and movable unit 3 to move simultaneously with the movable unit in the tilt mode TIM.
In some embodiments of the present disclosure the interconnecting part 11 may comprise a movable hinge arm of the first hinge(s) 6.
In some embodiments of the present disclosure (not illustrated), the interconnecting parts 11a, 11b may comprise or be a movable hinge arm of the first hinge 6. In some embodiments, the interconnecting side parts 11a, 11b may be unitary with the first hinge 6.
In one or more embodiments of the present disclosure, a hinge arm of the first hinge(s) 6 may comprise the second hinge(s) 7, such as wherein a part of the second hinge 7 is unitary with the hinge arm of the first hinge 8.
In some embodiments, the interconnecting part 11 comprises a movable part, such as an arm, of the first hinges 6, a part of the second hinge 7 and optionally an intermediate frame comprising frame profiles 11a, 11b, 11c such as elongated frame profiles.
Figs. 7A-7D illustrate schematically a tilt and turn type roof window according to embodiments of the present disclosure, comprising a switching mechanism 10 and a mechanical coupling 14a, 14b.
In fig. 7A, the movable unit 3 is in a closed and locked mode CLP. Here, the first part 14a of the mechanical coupling has been displaced by means of the handle 8 (handle 8 is not illustrated in figs. 7A-7C). This provides that a part 10a, such as a push-pull rod, of the switching mechanism 10 is moved, so that parts 12, 12a engages. This interlocks the interconnecting part 11 and the fixation frame through the guide 19. The handle may here be in the first handle position HP1 as preciously described.
In fig. 7B, the movable unit 3 is in a turn mode TUM, and the movable unit 3 has been turned to a turned position TUP by means of the hinges 7 and an actuator 9 around the turn axis AX2. Here, the first part 14a of the mechanical coupling has been moved unmoved by means of the handle 8. Hence, the engagement parts 12, 12a remains engaged. Hence, the interconnecting part 11 and the fixation frame 2 remains interlocked through the guide 19. The handle may here be in the first handle position HP1 as preciously described.
In fig. 7C, the movable unit 3 is in a closed position, but the movable unit 3 is set in a tilt mode TIM. Here, the first part 14a of the mechanical coupling has been moved/displaced by means of the handle 8 (handle 8 is not illustrated in figs. 7A-7C) relative to the unit frame 4. The first part 14a of the mechanical coupling may be displaced in a direction parallel to the longitudinal direction of the unit frame 4 side profile 4c. In other embodiments, the first part 14a of the mechanical coupling may be displaced in a direction that is not parallel to the longitudinal direction of the unit frame 4 side profile 4c. In some embodiments, the first part 14a of the mechanical coupling may be displaced in a direction that is not perpendicular to the longitudinal direction of the unit frame 4 side profile 4c.
The displacement of the first part 14a relative to the unit frame 4 by means of the handle provides that a part 10a, such as a push-pull device, of the switching mechanism 10 is moved relative to the unit frame 4, so that engagement parts 12, 12a disengages. This unlocks the interconnecting part 11 and the fixation frame through the guide 19. Hence, the movable unit 3 can now be tilted by means of the top hinge(S) 6, see fig. 7D.
In fig. 7D, the first part 14a of the mechanical coupling is disengaged from the second part of the coupling 14b. This is provided when the movable unit 3 opens, e.g. by a pushing force applied by human hand, in the opening direction ODR from the closed position. This may be the case both in the tilt mode and the turn mode (see fig. 7B). For this purpose, the second part 14b of the mechanical coupling may, as e.g. illustrated in figs. 7A.-7D, comprise a receiving recess 14c facing in the opening direction ODR. In figs 7A-7B, the first part 14a, such as a pin, extends into the receiving recess 14c. When the first part 14a is engaged with the receiving recess 14C, the handle (8 - not illustrated in figs 7A-7D) can control the engagement part 12 position relative to the fixation frame 2. In an alternative embodiment (not illustrated), the first part 14a of the mechanical coupling may comprise a receiving recess 14c facing in away from the opening direction ODR, and the switching mechanism may comprise e.g. a pin/latch 14a.
As illustrated, the part 14b comprising the receiving recess 14C for receiving the pin/latch 14a may comprise inclining edges providing a funnel shaped recess. This may help to provide improved engagement between parts 14a, 14b and may help a desired positioning of the handle controlling the part 14a and/or desired positioning of the switching mechanism 10. For example, if the handle is put in a position between the first and second predefined handle positions HP1, HP2. The inclining edges may additionally or alternatively help to guide the pin 14a towards a final engaged, gripping position at the other part 14b at the bottom of the recess 14c when the movable unit 3 is fully closed.
As illustrated in some of the figures described above, the first lock 12, 25 is configured to be in the unlocked state in the tilt mode TIM, so that the interconnecting part 11, is movable relative to the fixation frame 2. See e.g. figs 6B and 7C-7D.
As illustrated in some of the figures described above, the actuator 9 may be configured to provide the turning of the movable unit 3 around the turn axis AX2 while the first lock 12, 25 is in the locked state and while the first handle 8 remains in said first handle position HP1. See e.g. figs. 7B and 6A.
Figs. 9A-9B relates to an embodiment of the present disclosure where the engagement parts 12, 12a of the first lock 25 remains engaged when the movable unit 3 is in a closed and locked mode CLM (Figs. 7A) and the handle 8 is in the first handle position HP1. Hence, the movable unit 3 can be considered as locked in a centre hung configuration when the movable unit 3 is in a closed and locked mode CLM.
Figs. 8A-8C illustrate a tilt and turn type roof window 1 for a building, according to further embodiments of the present disclosure.
Here, the window 1 also comprises a switching mechanism 10 comprising a guide 19 as e.g. previously described in relation to one or more of figs. 6A-7D. However, in the embodiments of figs. 8A-8C, the displaceable push-pull device 10a is configured to be placed in a position so that when the movable unit 3 is in the closed and locked mode CLM (fig. 8A), the engagement parts 12a, 12 are disengaged. Instead, the first part 14a of the mechanical coupling engages with the second part 14a of the mechanical coupling so as to maintain the movable unit in a closed and locked position. Thereby, the movable unit 3 is locked to the fixation frame 2 through the switching mechanism. This is provided by means of the mechanical coupling 14a, 14b, the push-pull device 10a and the guide 19. Thus, the engagement parts 12a, 12 may be unengaged when the handle 8 is in the first handle position HP1.
When the movable unit 3 is to be in the turn mode, a displacement of the push-pull device 10a is provided so that the engagement parts 12, 12a of the first lock 25 engages, see fig. 8B. This movement releases the mechanical coupling 14a, 14b so that the parts 14a, 14b are unengaged. Hereby, the movable unit 3 is now able to move to a turned position in a turn mode as e.g. previously described, while the interconnecting part 11 is locked to the fixation frame 2 by means of the guide 19, the push-pull device 10a and the engagement parts 12a, 12. The first part 14a of the mechanical coupling 14a may remain in an unmoved position relative to the unit frame 4 of the movable unit 3 while the second part 14b may move by means of the push-pull device 10a. The movable unit 3 can now turn around the turn axis AX2, e.g. by means of the actuator 9 as previously disclosed.
The handle 8 may be maintained in the same, first handle position HP1 relative to the movable unit 3 in the closed and locked mode CLM (fig. 8A) and in the turn mode TUM (fig. 8B). This may provide that the first part 14a of the mechanical coupling is maintained in the same position relative to the unit 3 frame 4 in the closed and locked mode CLM (fig. 8A) and in the turn mode TUM (fig. 8B).
In fig. 8C, the handle 8 has been moved to the second handle position HP2 relative to the movable unit 3. This movement provides that the first part 14a of the first mechanical coupling part 14a is moved relative to the unit frame 4 of the movable unit 3 while the second part 14b remains unmoved (compared to the embodiment illustrated in fig. 8A). This provides that the first part 14a of the movable unit 3 and the second part 14b at the fixation frame 2 gets to an unlocked/unengaged state. The movable unit 3 can now turn around the tilt axis AX1 in the top-hung configuration (see e.g. fig. 2) e.g. by manually pulling or pushing the handle 8. The actuator 9 and/or a second lock 15 as e.g. previously described may provide that the movable unit 3 is maintained in a predetermined position relative to the interconnecting part 11 during the turning of the movable unit 3 around the tilt axis AX1.
The displacement of the engagement part 12 and the second part 14b of the mechanical coupling mechanism may in embodiments of the present disclosure be provided by means of displacing means 22 that are not mechanically coupled to the first handle 8, such as are separate to the first handle 8. The displacing means 22 may e.g., in some embodiments, comprise one or more of an electric motor (not illustrated), biasing means (not illustrated in figs. 8A-8C), such as a spring loaded biasing means, a magnet arrangement, a gas cylinder and/or the like.
In some embodiments, the second handle (18, if present), the actuator 9 or the like may directly or indirectly induce the displacing means 22 to displace the push-pull device 10a so as to engage or disengage the mechanical coupling arrangement 14a, 14b and/or so as to engage or disengage the engagement parts. This may e.g. be controlled wired or wirelessly. It may additionally or alternatively be controlled electrically and/or mechanically.
In some embodiments, the electric actuator 9 may trigger the displacing means by pushing the movable unit. In other embodiments, a transmitter may transmit a signal when the actuator 9 is activated, which transmitted signal is received by a receiver, and causes the displacing means to displace the push-pull device 10a.
The displacing means 22 may e.g. in some embodiments be activated in response to a wired or wireless signal. In other or additional embodiments, a n activation of the displacing means 22 may be actuated due to movement of the movable unit 3 by means of the actuator. In some embodiments, the displacing means may or may not be spring loaded. In some embodiments, the actuator 9 may directly or indirectly activate the displacing means 22. In some embodiments, the first handle 8 or the second handle 18 may directly or indirectly activate the displacing means 22. The activation of the displacing means 22 may or may not be based on sensor input.
Figs. 9A-9B illustrates schematically an embodiment of the present disclosure where the engagement parts 12, 12a of the first lock 25 remains unengaged when the movable unit 2 is in a closed and locked mode CLM, e.g. as described in relation to fig. 9A. See also fig. 8A. Hence, the movable unit 3 can be considered as locked in a top hung configuration when the movable unit 3 is in a closed and locked mode CLM.
Hence, in the embodiments of figs. 9A and 8A, the movable unit 3 may be considered as locked (14a, 14b) in a top hung configuration when the movable unit 3 is in a closed and locked mode CLM and the first handle 8 is in the first handle position HP1. In other embodiments of the present disclosure, see e.g. figs. 6A and 7A, the movable unit 3 can be considered as locked (25, 12, 12a) in a centre hung configuration when the movable unit 3 is in a closed and locked mode CLM and the first handle 8 is in the first handle position HP1.
In fig. 9A, the movable unit 3 is in a closed and locked mode. Here, the first handle 8 is mechanically coupled to the switching mechanism 10 by means of a mechanical coupling 14a, 14b. The movable unit 3 may comprise a first part 14a of the mechanical coupling. Hence, the first part 14a of the mechanical coupling moves together with the movable unit 3 when it opens in tilt mode and/or turn mode.
In fig. 9A, the first part 14a of the mechanical coupling is engaged with the second part 14b of the coupling. This is provided when the movable unit ins in a closed and locked mode CLM. For this purpose, the second part 14b of the mechanical coupling may, as e.g. illustrated in figs. 9A-9B, comprise a receiving recess 14c facing towards the bottom BO end of the roof window 1. In fig. 9A, the first part 14a, such as a pin, extends into the receiving recess 14c and thereby engages with the second part 14b. The handle (8 - not illustrated in figs. 9A-9B) can control the position of the first part 14a so that it 14a can be moved relative to the second part 14b to an unengaged position (see fig. 8C) by putting the handle 8 in the second handle position. Then the movable unit is in a top hung mode / tilt mode and can be opened a top hung, see e.g. fig. 2.
The second part 14b of the mechanical coupling is controlled by the switching mechanism 10.
In fig. 9B, the switching mechanism 10 has been switched by the displacing means 22, and provides that the movable unit 3 is in a turn mode TUM. The displacing means 22 hence provides that the switching mechanism 10 is changed to a state so that the engagement parts 12, 12a of the first lock 25 engages and so that the parts of the mechanical coupling 14a, 14b disengages. The first part 14a at the movable unit 3 may remain in position and it is here the second part 14b that moves to provide the disengagement of parts 14a, 14b. This causes the movable unit 3 to be switched to be in the turn mode TUM, and an actuator 9 (e.g. as described previously) or a user may now move the movable unit 3 to the turned position TUP, see e.g. fig. 9B and fig. 3.
The switching of the switching mechanism 10 to put the movable unit 3 in the turn mode may however be omitted in embodiments described in relation to figs. 6A-7D since the default mode of the switching mechanism 10 in the closed and locked mode CLM is that the interconnecting part 11 is locked to the fixation frame 2 through the switching mechanism 10.
Figs. 10A-10B and 11A-11 D illustrates schematically a tilt and turn type roof window 1 for a building according to further embodiments of the present disclosure.
The movable unit 3 comprises a handle connector 8b. The handle connector 8b is displaceably attached to the unit frame 4, such as to the bottom frame profile 4b. the unit frame 4 may hide the handle connector 8b. The handle connector 8b is configured to be displaced relative to the movable unit 3 by means of the handle 8a. This may be provided so as to mechanically control the lock 25.
The first handle 8 is configured to move the handle connector 8b relative to the unit 3.
The interconnecting part 11 in figs. 10A-10B and 11A-11D extends substantially to the bottom area of the movable unit 3. Hereby, the handle connector 8 may move to control a lock 25 that is arranged proximate the bottom BO area of the movable unit 3.
In figs. 10A and 11A, the movable unit 3 is in a closed and locked mode CML. The first lock 25 here interlocks the interconnecting part 11 to the fixation frame 2. The lock 25 may here, as illustrated in fig. 10a, comprises engagement parts 12 and 12a. The engagement part/locking part 12, engages with the interconnecting part 11, e.g. by means of a recess or a protrusion. In figs. 10a, the locking part 12 comprises a latch that engages with a notch 12a at the interconnecting part 11. These together may provide the engagement parts of the lock 25. The locking part 12 is movably attached to the fixation frame 2. E.g. through a guide (not illustrated) or the like.
Biasing means 30, such as a spring, a gas piston, a magnet or the like assures that the locking part 12, such as a latch, engages with the engagement part 12a of the interconnecting part 11 and locks it 11 to the fixation frame 2 when the handle 8 is in the first handle position HP1.
When a user manually arrange the handle 3 in the second handle position HP2 as illustrated in fig. 10B and 11C, the handle connector 8b pushes, pulls or in other ways manipulates the locking part 12, so that the lock 25 disengages. The handle connector 8b may thus overcome the/a force provided by the biasing means 30 and force the locking part 12, such as a latch, such as a spring 30 latch 12 to a disengaged position. This provides that the user can provide an opening force by means of the first handle 8 so that the movable unit 3 is opened to a tilted position TIP, see fig. 11D. The applied opening force is transferred to the interconnecting part 11 through the hinges 7.
In case an actuator 9 or user instead turns the movable unit 3 from the closed and locked mode CLM illustrated in fig. 10A and 11A, the handle connector 8b is configured so that it will not be engaged with the interconnecting part 11, and can thereby be moved relative to the interconnecting part 11 so that the movable unit 3 can be opened in turn mode as e.g. described above and e.g. illustrated in fig. 11B. See also figs. 12A-12E. The first lock 25, 12, 12a however locks the interconnecting part 11 to the fixation frame 2 in the turn mode TUM (fig. 11B). This may be provided due to/by means of the biasing means 30 which may assure that the lock 25 is engaged when the handle HP1 is in the first handle position HP1.
Figs. 12A-12E illustrates schematically a tilt and turn type roof window 1 for a building according to further embodiments of the present disclosure. The first lock 25 comprises the engagement parts 12a, 12. A handle connector 8b is configured to move the locking part 12, such as a latch, of the first lock 25. In fig. 12A, the roof window 1 is in a closed and locked mode CLM and the handle 8 is in the first handle position HP1. Here, biasing means 30 provides that the locking part 12 is engaged with the interconnecting part 11, and thereby interlocks the interconnecting part 11 to the fixation frame 2.
When a user moves (Fig. 12B) the handle 8 to the second handle position HP2, the handle connector 8b pushes (or pulls or in other ways manipulates) the locking part 12, so that it disengages from the engagement part 12a of the interconnecting part 11. This may be provided mechanically and directly or indirectly by means of the handle connector 8b. The handle connector 8b may in some embodiments comprise or consist of an elongated member such as a rod.
The user can now (Fig. 12B) move the movable unit 3 around the tilt axis AX1 (previously described) in the tilt mode/top hung mode TIM in the opening direction ODR to the tilted position TIP as e.g. previously described. See fig. 12C. While the movable unit 3 is in the tilted position (fig. 12C), the locking part/engagement part 12 may have moved back to the engaging position by means of the biasing means 30. However the locking part 12 (and/or the interconnecting part 11 and/or the handle connection 8b) may comprise a ramp 31 (in figs. 11A-11E the ramp 31 is placed at the locking part 12).
When the movable unit 3 is returned to a closed position from the tilted position, see fig. 12D, the ramp(s) 31 may help to provide that the locking part 12 is returned, such as pushed, to a disengaged position again. If the handle 8 in the meantime has been moved to the first handle position HP1, the handle connector 8b may have been moved so that the lock 25 may directly go to an engaged state so that engagement parts 12, 12a engages. Alternatively, after the user has returned the movable unit 3 to the closed position, the user may return the handle 8 to the first handle position HP1. This provides that the biasing means 30 assures that the engagement parts 12, 12a engages again so that the lock 25 and hence the movable unit 3 is in a closed and locked mode CLM (Fig. 12A).
In other embodiments (not illustrated), a trigger may be activated when the handle 8 is moved to the second position HP2. This trigger may maintain the locking part 12 in a retracted, unengaged state so that it do not move to the engagement state when the movable unit 3 is opened in the tilted position. The trigger may be mechanically, magnetically or in other ways activated when the movable unit 3 returns to the closed position. This may provide that the biasing means 30 due to the inherent properties of the biasing means 30, moves the locking part 12 to the engaged state (Fig. 12A) again. This may be provided instead of the ramp 31, or in combination with a locking part, such as a latch, comprising a ramp 31. In other embodiments, the movable unit, such as the interconnecting part 11 may additionally or alternatively comprise the ramp 31.
As can be seen in fig. 12E, the handle connector 8b may be movable relative to the interconnecting part 11 in the opening direction ODR when the movable unit 3 is in the turn mode TUM and the handle 8 is in the first handle position 11. This provides that the movable unit 3 can open around turn axis AX2 (previously described) in the turn mode TUM. Hence, when a user or an actuator, as e.g. previously described, moves the movable unit 3 in the turn mode TUM, this will not be prevented by the lock 25 or interconnecting part 11. The interconnecting part 11 may be remained interlocked to the fixation frame 2 in the turn mode TUM by means of the lock 25.
Fig. 13 illustrates schematically a tilt and turn type roof window 1 for a building according to further embodiments of the present disclosure. Details of the first lock 25, a switching arrangement (if present) enabling handle 8 to control the lock 25, and/or the like, are omitted for figure simplicity.
In the embodiment illustrated in fig. 13, the window 1 comprises two interconnecting parts 11. The interconnecting parts comprises side parts 11a, 11b, one at each window side. These 11a, 11b are each connected to the fixation frame 2 through a hinge 6, and they 11a, 11b may be individually movable when not connected to the movable unit 3 through the hinge 7. The two interconnecting parts 11a, 11b are mechanically connected through the hinges 7 and the movable unit 3. A part (see e.g. 11c of figures described above) directly connecting the interconnecting parts 11a, 11b is omitted. In some embodiments, the side parts 11a, 11b may be an integrated part of the hinge 6 and/or 7. In some embodiments, the side parts 11a, 11b may comprise or consist of hinge 6 arms.
Fig. 13 moreover illustrates a further embodiment of the present disclosure where an actuator 9 is arranged between an interconnecting part 11a and the movable unit 3, in this case at the side of the movable unit 3.
Fig. 14 illustrates schematically a tilt and turn type roof window 1 for a building according to further embodiments of the present disclosure. Here, the interconnecting part 11 comprises a full rectangular frame 11 extending around the movable unit 3 between the movable unit and the 3 and the fixation frame 3. The movable unit is here in the closed and locked mode. Two locks (first lock 25 and actuator 9) together provides that the movable unit 3 is in the closed and locked mode CLM. Since the interconnecting part 11 comprises a bottom frame profile 11d, between the bottom of the fixation frame 2 and the bottom of the unit frame 4, the handle 8 at the bottom BO may control the first lock 25 which may be arranged at the window bottom BO. The actuator 9 may also (as illustrated) be arranged at or near the window bottom BO.
Fig. 15 illustrates schematically a tilt and turn type roof window 1 for a building according to a embodiments of the present disclosure, wherein the roof window 1 comprises a lifting system 40. The lifting system may comprise one or more springs. The lifting system 40 is configured to assist the user in opening the movable unit 3 in the tilt mode TIM when the user manually opens the window by moving the movable unit 3. The lifting system 40, such as a spring of the lifting system, such as a secondary help spring, may be adjustable so as to enable adjustment of the lifting system's lifting performance dependent on the installation angle of the roof window 1. The installation angle may depend on the roof pitch. The lifting system 40 comprises a lifting arm 40a.
The lifting arm 40a is connected to, such as directly or indirectly attached to, a spring 40b of the lifting system 40. When a user pushes the movable unit 3 through the handle 8 (not illustrated in fig. 15), a spring 40b, such as a pre-tensioned spring, of the lifting system 40 provides a lifting force on the lifting arm 40a. The lifting arm 40a transfers the force from the spring to the interconnecting part 10, such as to a hinge 6 part thereof, and thereby helps to lift the movable unit 3 to the tilted position. Thereby, a user only needs to apply a reduced force on the movable unit 3 to tilt it, when compared to the force needed if the lifting system 40 was omitted. The spring(s) 40b of the lifting system 40 may e.g. comprise one or more coil springs, one or more gas springs and/or the like.
In some embodiments of the present disclosure, the lifting system 40 may comprise a brake. The brake provides a friction force to a rod or the like of the lifting system so as to provide a more controlled closing of the movable unit 3 when moving the movable unit 3 from the tilted position TIP to the closed position. The brake may help to compensate for an exchange rate experienced by the lifting system 40 when the movable unit is almost closed.
The lifting system 40 may in some embodiments be arranged at, such as in, the fixation frame 2 side profile 2c. In some embodiments, the lifting system 40 may be arranged at, such as in, the fixation frame 2 side profile 2c together with a switching mechanism 10 for interlocking the interconnecting part 11. The lifting system 40 may in some embodiments of the present disclosure e.g. comprise or be a lifting system as disclosed according to various embodiments in patent documents EP2406448 and/or EP1052342 .
In some embodiments of the present disclosure (not illustrated), the first lock 25 may, at least in the turn mode TUM and when the first lock 25 is in the locked state, be configured to interlock the interconnecting part 11 and the fixation frame 2 by means of the lifting system 40. For example, In some embodiments, a latch of the first lock 25 may interlock a movable part, such as a sled or an arm, of the lifting system 40 relative to the fixation frame 2. This may provide that the interconnecting part 11, 11a, 11b and the fixation frame 2 are interlocked. In some embodiments of the present disclosure, the first lock 25 may additionally or alternatively be configured to interlock the interconnecting part 11 and the fixation frame 2 by means of the lifting system 40 in the closed and locked mode CLM. In some embodiments, a spring link device of the lifting system 40 may be locked up and/or a friction brake of the lifting system may be be blocked. E.g. by means of the first lock 25.
In other embodiments of the present disclosure, as e.g. described in relation to various figures of the present disclosure described above, the first lock 25 may be separate to the lifting system 40 and be configured to interlock the interconnecting part 11, 11a, 11b and the fixation frame 2 without engaging a part of the lifting system 40.
Fig. 16 illustrates schematically a switching mechanism 10 according to embodiments of the present disclosure, in two modes.
The first handle 8 is mechanically coupled to the switching mechanism 10 by means of a first part 14a. The switching mechanism comprises a guide 19. In this case the guide comprises guiding pins 19b attached to the fixation frame 2 (not illustrated) and the displaceable device 10a comprises a guiding track 19a (or vice versa).
The displaceable device 19a also comprises a second part 14b of the mechanical coupling 14a, 14b. In this case a hook shaped part.
When displaceable device 10a is in the first position P1, the engagement parts 12a, 12 of the lock 25 engages, and thereby the interconnecting part 11 and the fixation frame 2 are interlocked through the displaceable device 10a and the guiding pin(s) 19b. The parts 14a, 14b of the mechanical coupling are here unengaged so that the movable unit can open in the opening direction ODR in the turn mode TUM around the turn axis AX2.
When displaceable device 10a is in the second position P2, the engagement parts 12a, 12 of the lock 25 are unengaged, and thereby the interconnecting part 11 and the fixation frame 2 are not interlocked through the displaceable device 10a and the guiding pin(s) 19b. The parts 14a, 14b of the mechanical coupling are here engaged so that the movable unit 3 is in the closed and locked position CLM.
The part 14a may be connected to the first handle 8 (not illustrated in fig. 16), e.g. through a handle connector 8b (see various embodiments described above, such as in relation to figs 8A-8C. The part 14a can be moved relative to the movable unit 3 and the part 14b to an unengaged position by moving the first handle 8 to the second handle position (see e.g. fig. 8C). Hereby, the movable unit 3 enters the tilt mode (not illustrated in fig. 16) and can be turned around the tilt axes AX1.
The displaceable device 10a may be displaced relative to the fixation frame 2 between the positions P1 and P2 by means of displacing means (not illustrated in fig. 16) that is/are not mechanically coupled to the first handle 8, such as are separate to the first handle 8. The displacing means 22 may e.g., in some embodiments, comprise one or more of an electric motor (not illustrated), biasing means (not illustrated in fig 30) such as a spring loaded biasing means, a magnet arrangement, a gas cylinder and/or the like.
Fig. 17 illustrates a roof window 1 which has been is installed in a roof structure 210 of a building 200 so that the top TO of the roof window 1 is arranged at a higher vertical position than the bottom BO of the roof window 1. This may be caused by the roof pitch of the roof structure 210. The roof structure may have/provide a roof pitch above 17°, such as a roof pitch above 25° or above 35°. The roof window 1 is a tilt and turn type roof window 1 as described according to one or more embodiments above in relation to one or more of figs. 1-16. The tilt axis AX1 and the turn axis AX2 may be configured to be substantially horizontal when the roof window 1 is mounted in a roof structure of a building.
Fig. 18 illustrates schematically a cross section of a tilt and turn type roof window 1 according to embodiments of the present disclosure, and an actuator 9 for retrofitting at an actuator space AS of the roof window 1, This may e.g. provide a roof window 1 as described above according to various embodiments of the present disclosure. For example in relation to one or more of figs. 1-17.
The movable unit 3, before actuator 9 retrofitting, comprises the first handle 8 and the second handle 18. The first handle 8 comprises e.g. a gripping part 8a configured to be grabbed by human hand, as e.g. previously described. The first handle 8 is arranged at the bottom BO of the roof window 1. In the illustrated embodiment, the first handle 8 is arranged at the bottom end BE of the movable unit 3. The movable unit 3 moreover comprises a second handle 18. The second handle 18 is arranged at the top TO of the roof window 1. In the illustrated embodiment, the second handle 18 is arranged at the top end TE of the movable unit 3.
The second handle 18 is configured to be operated so as to switch a second lock 15 (not illustrated in fig. 18, see e.g. figs. 1-3, between a locked state and an unlocked state. The second handle 18 is configured to be manually pulled or pushed with a force so as to turn the movable unit 3 by means of said force in the turn mode TUM to the turned position TUP,
The movable unit 3, in the third closed and locked mode CLM, is configured be in a closed and locked position relative to the fixation frame 2. Here, the first handle 8 is configured to be in the first handle position HP1.
The roof window ,may comprise a first lock 12, 12a, 25 as e.g. described above according to various embodiments of the present disclosure. In a locked state of the first lock, the first lock is configured to interlock the interconnecting part 11, 11a, 11b and the fixation frame 2 at least in the turn mode TUM, so that the turning of the movable unit 3 around the turn axis AX2 is allowed while the first lock 25 is in the locked state and while the first handle 8 remains in the first handle position HP1,
The roof window comprises an actuator space AS configured to receive and house a housing 9a of the electrically powered actuator 9 which is to be retrofitted at the roof window 1. The actuator space AS is arranged so that the actuator housing 9a is substantially hidden when installed at the actuator space AS, at least when the movable unit 3 is in the third closed and locked mode CLM.
In fig. 18 (and figs. 4A-4B), the actuator space AS is arranged between the interconnecting part 11 and the movable unit 3. This provides that the actuator space AS is arranged between the fixation frame 2 and the movable unit 3.
The actuator space AS is in fig. 18 and 4A-4B is arranged at the top TO area of the roof window 1. The actuator space AS may accommodate the actuator housing 9a when the actuator has been arranged at the roof window.
The actuator space AS is in fig. 18 arranged between a top profile 11c of the interconnecting part 11 and the movable unit 3. In other embodiments, the actuator space AS may be arranged at a side of the roof window 1.
In some embodiments, the roof window may comprise heat insulation material (not illustrated), e.g. a foamed polymer heat insulation, at the actuator space AS. The heat insulation may e.g. comprise or consist of a heat insulation block (not illustrated). This heat insulation may provide improved heat insulation performance at the roof window 1. Upon retrofitting the actuator 9 at the roof window 1, a user may remove the heat insulation block from the roof window 1. The actuator housing 9a may then be installed at the actuator space AS where the removed heat insulation was installed. Hence, heat insulation may in some embodiments be substituted/replaced with the actuator housing 9a.
Fig. 18 illustrates schematically a further embodiment of the present disclosure. Here the roof window 1 is prepared for retrofitting of the actuator 9. The roof window 1 comprises one or more predefined connection interface parts 9x1, 9y1 for use during attachment, such as retrofitting, of the electrically powered actuator 9.
The electrically powered actuator 9 may additionally comprise one or more connection interface counter parts 9x2, 9y2. This/these counter parts 9x2, 9y2 is/are configured to interconnect with, such as engage with and/or at, the connection interface parts 9x1, 9y1 of the roof window 1 when installing the actuator 9 at the roof window 1.
The connection interface 9x1, 9x2, 9y1, 9y2 may be configured to allow that the actuator housing 9a can move relative to the window part 4, 3, 11 at which it is installed. In other embodiments, the housing 9a may be configured to move relative to a connection interface part 9x2 of the actuator 9 when installed.
The interconnecting part 11 may in some embodiments of the present disclosure comprise the predefined connection interface part 9x1. This is illustrated in fig. 18. In other embodiments, the fixation frame 2 may comprise the connection interface 9x1. The connection interface 9x1 may in some embodiments comprise a mounting or the like attached to the interconnecting part 11 or fixation frame 2 by means of one or more fasteners such as mechanical fasteners and/or by means of a glue. In other embodiments, the connection interface 9x1 may be unitary with the interconnecting part 11 or fixation frame 2.
The connection interface may in further embodiments comprises a connection interface 9y1 arranged at the movable unit 3, such as at a part of the handle part 18, 18a, 18x of the handle 18. In fig. 18, the connection interface 9y1 is arranged at the ventilation flap 18x of the handle 18. The actuator 9, such as the actuating part 9b of the actuator, may moreover comprise a connection interface counterpart 9y2 configured to engage with the connection interface 9y1 of the movable unit.
The connection interface parts 9x1, 9x2, 9y1, 9y2 may provide a mechanical connection interface.
The connection interface 9x1 and/or 9x2 at e.g. the actuator housing 9a and/or at the interconnecting part 11 or fixation frame 2 may in some embodiments of the present disclosure comprise

one or more predefined holes or dents,
one or more predefined visual markings indicating actuator 9 and/or connection interface position, so as to help the user with correct actuator 9 positioning
one or more mountings,
one or more clips
one or more protrusions
one or more hinge parts
one or more screws
one or more tracks, such as elongated tracks or grooves.

The connection interface 9y1 and/or 9y2 at e.g. the actuating part 9b and/or the movable unit 3, such as at a part 18x or 18a of the handle 18, may in some embodiments of the present disclosure comprise:

one or more predefined holes or dents,
one or more predefined visual markings indicating actuator 9 and/or connection interface position, so as to help the user with correct actuator 9 positioning
one or more mountings,
one or more clips
one or more protrusions
one or more hinge parts
one or more tracks, such as elongated tracks or grooves,
one or more screws

In some embodiments, one or more separate screws, nails, pins, clips or the like may be used for interconnecting the connection interface(s) 9y2 and/or 9x2 to connection interface(s) 9y1 and/or 9x1. In other embodiments, the connection interface(s) 9x1, 9x2 and/or 9y1, 9y2 may comprise substantially all means necessary to provide the desired and intended retrofitting of the actuator 9 at the window 1.
The connection interface(s) 9x1, 9x2 and/or 9y1, 9y2 may enable a user to quickly retrofit the actuator 9 at the roof window 1 in the actuator space AS at the correct position, and moreover the risk of installation errors may be reduced.
It is understood that in some embodiments, connection interface parts 9y1 and/or 9y2 may comprise or be a part of a mechanism, such as a gripping mechanism as e.g. previously described. This mechanism may be configured so that a pushing by the actuator 9 provides that the actuator part 9b engages with the movable unit 3 such as a part 18x of the handle 18, due to the mechanism, whereas the movable unit 3, such as the part 18x of the handle 18x does not engage with the actuator 9 when pulling the handle 18. Hence, when pulling the handle 18, the movable unit 3, such as the handle 18, may be configured to is disengage/be unengaged with the actuator 9.
In some embodiments of the present disclosure, upon/when installing the actuator 9, the second lock 15 (see figs. 1-3) may be dismounted or deactivated. In other embodiments of the present disclosure, the second lock 15 may be maintained at the roof window 1, and the retrofitted actuator 9 may control the lock 15 by means of controlling, such as directly or indirectly controlling, the handle 18. For example by means of pushing or pulling a part of the handle 18, 18a, 18x, see e.g. also figs. 4A-4B.
In some embodiments of the present disclosure, the second handle 18, such as the gripping part 18a, may be dismounted upon/when installing the actuator 9 at the window 1. In other embodiments, the handle 18 may be maintained at the movable unit 3 after actuator retrofitting.
It is generally understood that the roof window 1 of the tilt and type as described above according to various embodiments of the present disclosure, in relation to various figures, comprises a lock arrangement 15, 25, 14a, 14b, 12, 12a. The lock arrangement may be configured to be arranged in a locking state so that said turning of the movable unit 3 around the turn axis AX2 is allowed while the first handle 8 remains in said first handle position HP1, and so that said turning of the movable unit 3 around the turn axis AX2 is moreover allowed while the first handle (8) is in the second handle position HP2. This may be obtained as described above according to various embodiments of the present disclosure. In some embodiments, said lock arrangement 15, 25, 14a, 14b, 12, 12a may comprise one or more of

the first lock 25, 12, 12a
the second lock 15, and/or
the mechanical coupling 14a, 14b

Items

Various embodiments of the present disclosure are moreover described in the below items:

1. A tilt and turn type roof window (1) for a building, wherein the tilt and turn type roof window (1) comprises:
- a fixation frame (2) comprising a top frame profile (2a), a bottom frame profile (2b) and side frame profiles (2c), wherein the side frame profiles (2c) extends between the top and bottom frame profiles (2a, 2b),
- a movable unit (3), wherein the movable unit (3) comprises a unit frame (4) and an insulated glass unit (5) which is attached to the unit frame (4), wherein the movable unit (3) comprises a first handle (8), wherein the first handle (8) comprises a gripping part (8a) configured to be grabbed by human hand, wherein the first handle (8) is configured to be moved relative to the movable unit (3) from a first handle position (HP1) to a second handle position (HP2) by a human user, wherein the first handle (8) is arranged at the bottom (BO) of the roof window (1), wherein the movable unit (3) moreover comprises a second handle (18),
- an interconnecting part (11, 11a, 11b), wherein the interconnecting part (11) interconnects said movable unit (3) and said fixation frame (2),

wherein the movable unit (3), in a tilt mode (TIM), is configured to turn relative to the fixation frame (2) around a tilt axis (AX1) by means of at least one first hinge (6) so as to arrange the movable unit (3) in an open, tilted position (TIP), wherein the tilt axis (AX1) is arranged at a top (TO) part of the roof window (1), wherein said interconnecting part (11) is configured to move together with the movable unit (3) relative to the fixation frame (2) in said tilt mode (TIM),
wherein the movable unit (3), in a turn mode (TUM), is configured to be turned around a turn axis (AX2) arranged between the top part (TO) of the roof window (1) and a bottom part (BO) of the roof window (1) by means of second hinges (7) so as to arrange the movable unit (3) in a turned position (TUP), wherein the tilt axis (AX1) and the turn axis (AX2) are parallel,
wherein the movable unit (3) is supported by the interconnecting part (11, 11a, 11b) and is configured to turn relative to the interconnecting part (11, 11a, 11b) around said turn axis (AX2) in said turn mode (TUM),
wherein the movable unit (3), in a third closed and locked mode (CLM), is configured be in a closed and locked position relative to the fixation frame (2), wherein the first handle (8) is configured to be in the first handle position (HP1) in the third closed and locked mode,
wherein the roof window (1) comprises a first lock (12, 12a, 25) which in a locked state is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2), so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first handle (8) remains in said first handle position (HP1),
wherein the roof window (1) comprises a second lock (15) which in a locked state is configured to lock the movable unit (3) in the third, closed and locked mode,
wherein the second handle (18) is configured to be operated so as to switch the second lock (15) between the locked state and an unlocked state, and wherein the second handle (18) is configured to be manually pulled or pushed with a force so as to turn the movable unit (3) by means of said force in the turn mode (TUM) to the turned position (TUP),
wherein the movable unit (3), in a fourth mode (Fig. 5E), is configured to be turned relative to the interconnecting part (11) around said turn axis (AX2) by means of the second handle (18) while the first handle (8) is in the second handle position (HP2) and while the first lock (12, 12a, 25) is in an unlocked state.
2. A tilt and turn type roof window (1) according to item 1, wherein the movable unit (3), in the fourth mode, is configured to be simultaneously in the turn mode (TUM) and the tilt mode (TIM).
3. A tilt and turn type roof window (1) according to item 1 or 2, wherein the first lock (12, 12a, 25), in the locked state of the first lock, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2), such as at least in the turn mode (TUM), so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first lock (12, 12a, 25) is in the locked state and while the first handle (8) remains in said first handle position (HP1).
4. A tilt and turn type roof window (1) according to any of the preceding items, wherein the second lock (15), in the locked state of the second lock, is configured to interlock the interconnecting part (11, 11a, 11b) and the movable unit (3) in the third, closed and locked mode (CLM).
5. A tilt and turn type roof window (1) according to any of the preceding items, wherein the second handle (18) is arranged at the top (TO) of the roof window (1), such as at the top (TE) of the movable unit (3).
6. A tilt and turn type roof window (1) according to any of the preceding items, wherein the second lock (15) is configured to be operated by means of the second handle (18) independently of the handle position (HP1, HP2) of the first handle (8).
7. A tilt and turn type roof window (1) according to any of the preceding items, wherein the first lock (12, 25) is configured to be operated by means of the first handle (8) so as to control said first lock (12, 12a, 25) between the locked state and an unlocked state, and wherein the first handle (8) is configured to be moved from the first handle position (HP1) to the second handle position (HP2) by a human user so as to put the first lock (12, 12a, 25) in the unlocked state, thereby unlocking the interconnecting part (11, 11a, 11b) and the fixation frame (2) so as to put the movable unit (3) in the tilt mode (TIM).
8. A tilt and turn type roof window (1) according to any of the preceding items, wherein the roof window (1) comprises a predefined actuator space (AS) configured to receive and house an actuator (9) housing (9a) of a retrofitted electrically powered actuator (9).
9. A tilt and turn type roof window (1) according to item 8, wherein the actuator housing (9a) is configured to be substantially hidden when installed at the actuator space (AS), at least when the movable unit (3) is in the third closed and locked mode (CLM), such as wherein the actuator space (AS) is arranged between the fixation frame (2) and the movable unit (3), such as between the interconnecting part (11) and the movable unit (3).
10. A tilt and turn type roof window (1) according to item 8 or 9, wherein the actuator space (AS) is arranged at the top (TO) area of the roof window (1).
11. A tilt and turn type roof window (1) according to any of items 8-10, wherein the roof window (1) comprises a predefined connection interface (9x1, 9y1) for attachment of the electrically powered actuator (9),
such as wherein the predefined connection interface (9x1, 9y1) comprises one or more of:
- one or more predefined holes or dents,
- one or more predefined visual markings indicating actuator (9) position and/or connection interface position, so as to help the user with correct actuator (9) positioning
- one or more mountings,
- one or more clips
- one or more protrusions
- one or more tracks, such as elongated tracks
12. A tilt and turn type roof window (1) according to item 11, wherein the interconnecting part (11) or the fixation frame (2) comprises a part (9x1) of the predefined connection interface.
13. A tilt and turn type roof window (1) according to item 11 or 12, wherein the movable unit (3) comprises a part (9y1) of the predefined connection interface,
such as at a handle part (18x, 18, 18a) or at the frame (4) of the of the movable unit (3).
14. A tilt and turn type roof window (1) according to any of the preceding items, wherein the first lock (12, 25), in the locked state, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2) in the third closed and locked mode, such as so as to prevent said tilting of the movable unit (3).
15. A tilt and turn type roof window (1) according to any of the preceding items, wherein the roof window (1) comprises a switching mechanism (10), wherein said switching mechanism (10) comprises a displaceable part (10a) which is configured to be displaced (10a) so as to control an engagement part (12) of the first lock (25), wherein said displaceable part (10a) is displaceably attached (19), such as linearly displaceably attached, to the fixation frame (2).
16. A tilt and turn type roof window (1) according to item 15, wherein said displaceable part (10a) of the switching mechanism (10) is a bar or strip which is displaceably attached (19) to the fixation frame (2) by means of a guide (19, 19a, 19b), such as a linear guide.
17. A tilt and turn type roof window (1) according to item 14 or 15, wherein the displaceable part (10a) of the switching mechanism (10) is configured to be displaced mechanically by manipulating the first handle (8).
18. A tilt and turn type roof window (1) according to any of items 14-17, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode by means of said switching mechanism (10), such as by means of said guide (19),
and/or
wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of said switching mechanism (10), such as by means of said guide (19), while the movable unit (3) is in said turn mode (TUM).
19. A tilt and turn type roof window (1) according to any of items 14-18, wherein the engagement part (12) of the first lock (25) is configured to engage with the interconnecting part (11, 11a, 11b) so as to lock the interconnecting part (11, 11a, 11b) to the fixation frame (2), such as by means of said guide (19), at least while the movable unit (3) is in said turn mode (TUM).
20. A tilt and turn type roof window (1) according to item 19, wherein the engagement part (12) of the first lock (25) moreover is configured to engage with the interconnecting part (11, 11a, 11b) so as to lock the interconnecting part (11, 11a, 11b) to the fixation frame (2) while the movable unit (3) is in said third closed and locked mode.
21. A tilt and turn type roof window (1) according to any of items 14-20, wherein the movable unit (3) is configured to open in an opening direction (ODR) from a closed position (CP) when set in the tilt mode (TIM),
- wherein the first handle (8) is mechanically coupled to the switching mechanism (10) by means of a mechanical coupling (14a, 14b), wherein the movable unit (3) comprises a first part (14a) of the mechanical coupling, wherein the first part (14a) of the mechanical coupling is configured to disengage from a second part of the coupling (14b) when the movable unit (3) opens in the opening direction (ODR) from the closed position,
- such as wherein said switching mechanism (10) comprises said second part (14b) of the mechanical coupling.
21a. A tilt and turn type roof window (1) according to any of the preceding items, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode by means of a switching mechanism (10), such as by means of a guide (19),
and/or
wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of a switching mechanism (10), such as by means of a guide (19), while the movable unit (3) is in said turn mode (TUM).
21b. A tilt and turn type roof window (1) according to any of the preceding items, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode (CLM) by means of a guide (19), such as a linear guide and/or such as a guide (19) of a switching mechanism (10).
21c. A tilt and turn type roof window (1) according to any of the preceding items, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of a guide (19), such as a linear guide and/or such as a guide (19) of a switching mechanism (10), while the movable unit (3) is in said turn mode (TUM).
21d. A tilt and turn type roof window (1) according to any of the preceding items, wherein a displaceable part (10a), such as said displaceable part of the switching mechanism (10), is configured to be displaced in a direction that is parallel to the longitudinal direction of the side frame profile (2c) of the fixation frame (2).
22. A tilt and turn type roof window (1) according to any of the preceding items, wherein the interconnecting part (11a, 11b, 11c, 11) comprises an intermediate frame arranged between the fixation frame (2) and the unit frame (4),
- wherein the intermediate frame comprises intermediate side profiles (11a, 11b) which, at least in the closed and locked mode, are configured to extend along the longitudinal direction of the side frame profiles (2c),
- wherein the intermediate frame (11) comprises an intermediate top profile (11c) extending in a longitudinal direction which is parallel to the longitudinal direction of the top frame profile (2a), wherein the intermediate top profile (11c) extends between and connects the intermediate side profiles (11a, 11b).
23. A tilt and turn type roof window (1) according to any of the preceding items, wherein the interconnecting part (11, 11a, 11b) comprises a movable hinge arm of the at least one first hinge (6).
24. A tilt and turn type roof window (1) according to any of the preceding items, wherein the interconnecting part (11, 11a, 11b) is a movable hinge arm of the at least one first hinge (6), such as a part that is unitary with the at least one first hinge.
25. A tilt and turn type roof window (1) according to any of the preceding items, wherein the interconnecting part (11) comprises elongated side members (11a, 11b) extending at both sides of the movable unit (3), wherein the elongated members (11a, 11b), such as a distal part of the elongated members (11a, 11b), comprises at least a part of the second hinges (7).
26. A Method of retrofitting the tilt and turn type roof window (1) according to any of the preceding items with an electrically powered actuator (9), wherein the method comprises:
- providing an electrically powered actuator (9), wherein the provided electrically powered actuator (9) comprises an actuator housing (9a) and an actuating part (9b), such as a push-pull chain,
- connecting, such as attaching, a first part (9a, 9b) of the provided electrically powered actuator (9) to the movable unit (3), such as to a handle part (18x, 18, 18a) of the of the movable unit (3),
  and
- connecting, such as attaching, a second part (9a, 9b) of the provided electrically powered actuator (9) to the fixation frame (2) or to the interconnecting part (11).
27. A method according to item 26, wherein the actuator is self locking and/or has an optional further lock which is sequentially operated by said electrically powered actuator (9).
28. A method according to item 26 or 27, wherein the electrically powered actuator (9) is installed so as to control the second lock (15, 15a-15c) between the locked state and the unlocked state of the second lock (15).
29. A method according to any of items 26-28, wherein the electrically powered actuator (9) is installed so that it (9) is configured to control the second lock (15, 15a-15c) by moving a part (18x, 18a) of the second handle (18) relative to the movable unit (3).
30. A method according to any of items 26-27, wherein the method further comprises deactivating and/or dismounting the second lock (15, 15a, 15b).
31. A method according to any of items 26, 27, 28 or 30, wherein the method further comprises dismounting the second handle (18).
32. A method according to any of items 26-31, wherein the actuator (9) is arranged so that the movable unit (3) is allowed to be manually turned around the tilt axis (AX1) relative to the fixation frame (2) in the tilt mode (TIM) by means of the at least one first hinge (6) while the first handle (8) remains in said second handle position (HP2), such as by means of pushing the first handle (8).
33. A method according to any of items 26-32, wherein the actuator (9) is arranged so as to turn the movable unit (3) around the turn axis (AX2) relative to the interconnecting part (11) in the turn mode (TUM) while the first handle (8) remains in said first handle position (HP1).
34. A method according to any of items 26-33, wherein the actuator (9) is configured to turn the movable unit (3) around the turn axis (AX2) relative to the interconnecting part (11) in the turn mode (TUM) while the first handle (8) remains in said second handle position (HP2).
35. A method according to any of items 26-34, wherein the roof window (1) comprises a predefined actuator space (AS) configured to receive and house the housing (9a) of the provided electrically driven/powered actuator (9),
such as so that that the actuator housing (9a) is substantially hidden when installed at the actuator space (AS), at least when the movable unit (3) is in the third closed and locked mode (CLM).
36. A method according to any of items 26-35, wherein the method comprises arranging the housing (9a) of the provided electrically driven/powered actuator (9) between the fixation frame (2) and the movable unit (3), such as between the interconnecting part (11) and the movable unit (3).
37. A method according to any of items 26-36, wherein the housing (9a) of the provided electrically powered actuator (9) is arranged at the top (TO) area of the roof window (1).
38. A method according to any of items 26-37, wherein the roof window (1) comprises one or more first connection interface parts (9x1, 9y1),
- wherein the provided electrically powered actuator (9) comprises one or more second connection interface parts (9x2, 9y2),
- wherein the one or more first connection interface parts (9x1, 9y1) are configured for attachment of the provided electrically powered actuator (9) by means of said one or more second connection interface parts (9x2, 9y2),
- wherein the method comprises attaching the provided electrically powered actuator (9) to the roof window (1) by means of said first and second connection interface parts (9x1, 9y1, 9y2, 9x2).
39. A method according to item 39, wherein the one or more second connection interface parts (9x2, 9y2) and/or the one or more first connection interface parts (9x1, 9y1) comprises one or more of:
- one or more predefined holes or dents,
- one or more predefined visual markings indicating actuator (9) position and/or connection interface position, so as to help the user with correct actuator (9) positioning
- one or more mountings,
- one or more clips
- one or more protrusions
- one or more hinge parts
- one or more tracks, such as elongated tracks or grooves,
40. A method according to item 38 or 39, wherein the one or more first connection interface parts (9x1, 9y1) comprises one or more connection interface parts (9x1) arranged at the interconnecting part (11) or at the fixation frame (2).
41. A method according to item 38, 39 or 40, wherein the one or more first connection interface parts (9x1, 9y1) comprises one or more connection interface parts (9y1) arranged at the movable unit (3), such as at a handle part (18x, 18, 18a) of the movable unit (3).
42. A method according to any of items 26-41, wherein the one or more second connection interface parts (9x2, 9y2) of the provided electrically powered actuator (9) comprises one or more interface connectors (9x2, 9y2) configured to engage with the one or more first connection interface parts (9x1, 9y1) of the roof window (1).
43. A method according to any of items 26-42, wherein the housing (9a) of the provided electrically powered actuator (9) is attached to the roof window by means of a hinged connection (9x1, 9x2, 9y1, 9y2).
44. A method according to any of items 26-43, wherein the housing (9a) of the provided electrically powered actuator (9) is attached to the interconnecting part (11) or the fixation frame (2), such as by means of a hinged connection (9x1, 9x2, 9y1, 9y2).
44a. A method according to any of items 26-43, wherein said method comprises removing heat insulation, such as a heat insulation block, from the roof window (1), and arranging the actuator housing (9a) at the space (AS), such as said actuator space (AS), where the removed heat insulation was installed.
45. A tilt and turn type roof window (1) according to any of items 1-25, wherein the interconnecting part (11, 11a, 11b) is configured to be maintained in a substantially fixed position relative to the fixation frame (2) when the movable unit (3) is rotated relative to the interconnecting part around said turn axis (AX2) to said turned position, and/or
- wherein the interconnecting part (11, 11a, 11b) is configured to be maintained in a substantially fixed position relative to the fixation frame (2) during the entire rotation of the movable unit (3) relative to the interconnecting part (11) around said turn axis (AX2) to said turned position (TUP),
  and/or
- wherein the position of the interconnecting part (11) is configured to be substantially the same when the movable unit (3) is in the turned position (TUP) and when the movable unit (3) is in the closed and locked mode (CLM).
46. A tilt and turn type roof window (1) for a building, wherein the roof window (1) comprises:
- a fixation frame (2) comprising a top frame profile (2a), a bottom frame profile (2b) and side frame profiles (2c), wherein the side frame profiles (2c) extends between the top and bottom frame profiles (2a, 2b),
- a movable unit (3), wherein the movable unit (3) comprises a unit frame (4) and an insulated glass unit (5) which is attached to the unit frame (4), wherein the movable unit (3) comprises a first handle (8), wherein the first handle (8) comprises a gripping part (8a) configured to be grabbed by human hand, wherein the first handle (8) is configured to be moved relative to the movable unit (3) from a first handle position (HP1) to a second handle position (HP2) by a human user, wherein the first handle (8) is arranged at the bottom (BO) of the roof window (1),
- an interconnecting part (11, 11a, 11b), wherein the interconnecting part (11) interconnects said movable unit (3) and said fixation frame (2),
- wherein the movable unit (3), in a tilt mode (TIM), is configured to turn relative to the fixation frame (2) around a tilt axis (AX1) by means of at least one first hinge (6) so as to arrange the movable unit (3) in an open, tilted position (TIP), wherein the tilt axis (AX1) is arranged at a top (TO) part of the roof window (1), wherein said interconnecting part (11) is configured to move together with the movable unit (3) relative to the fixation frame (2) in said tilt mode (TIM),
- wherein the movable unit (3), in a turn mode (TUM), is configured to be turned around a turn axis (AX2) arranged between the top part (TO) of the roof window (1) and a bottom part (BO) of the roof window (1) by means of second hinges (7) so as to arrange the movable unit (3) in a turned position (TUP), wherein the tilt axis (AX1) and the turn axis (AX2) are parallel,
- wherein the movable unit (3) is supported by the interconnecting part (11, 11a, 11b) and is configured to turn relative to the interconnecting part (11, 11a, 11b) around said turn axis (AX2) in said turn mode (TUM),
- wherein the movable unit (3), in a third closed and locked mode (CLM), is configured be in a closed and locked position relative to the fixation frame (2), wherein the first handle (8) is configured to be in the first handle position (HP1) in the third closed and locked mode (CLM),
- wherein the roof window comprises a lock arrangement (15, 25, 14a, 14b, 12a, 12) configured to be arranged in a locking state so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first handle (8) remains in said first handle position (HP1), and so that said turning of the movable unit (3) around the turn axis (AX2) is moreover allowed while the first handle (8) is in the second handle position (HP2).
47. A tilt and turn type roof window (1) according to item 46, wherein said lock arrangement comprises at least two individually controllable locks (25, 12, 12a 15),
48. A tilt and turn type roof window (1) according to item 46 or 47, wherein said lock arrangement comprises a first lock (12, 25) which in a locked state is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2) at least in the turn mode (TUM), so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first lock (12, 25) is in the locked state and while the first handle (8) remains in said first handle position (HP1).
49. A tilt and turn type roof window (1) according to item 48, wherein the first lock (12, 25), in the locked state, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2) in the third closed and locked mode so as to prevent said tilting of the movable unit (3).
50. A tilt and turn type roof window (1) according to item 48 or 49, wherein, at least in the third closed and locked mode (CLM), the first handle (8) is configured to be moved relative to the movable unit (3) from the first handle position (HP1) to the second handle position (HP2) by a human user so that the first lock (25, 12, 12a) is arranged in the unlocked state,
wherein the first lock (12, 12a, 25) is configured to be in said locked state while the first handle (8) is in the first handle position (HP1).
51. A tilt and turn type roof window (1) according to any of items 48-50, wherein the first lock (12, 12a, 25), in the locked state, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2) in the third closed and locked mode so as to prevent said tilting of the movable unit (3).
52. A tilt and turn type roof window (1) according to any of items 48-51, wherein the first lock (12,12a 25) is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2),
such as wherein the first lock (12,12a 25), at least in the turn mode (TUM) and when the first lock (12, 25) is in the locked state, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2).
53. A tilt and turn type roof window (1) according to any of items 48-52, wherein the first handle (8) is mechanically coupled (14a, 14b, 10, 10a 18b) to the first lock (25, 12, 12a).
54. A tilt and turn type roof window (1) according to any of items 48-53, wherein said lock arrangement moreover comprises a second lock (15) which in a locked state is configured to lock the movable unit (3) in the third, closed and locked mode.
55. A tilt and turn type roof window (1) according to items 48 and 54, wherein the first lock (25) and the second lock (15) are separate, and independently controllable.
56. A tilt and turn type roof window (1) according to item 54 or 55, wherein the roof window (1), such as the movable unit (3), comprises a second handle (18),
- such as wherein said second handle (18) is configured to be operated so as to switch the second lock (15) between the locked state and an unlocked state,
- such as wherein the second handle (18) is configured to be manually pulled or pushed with a force so as to turn the movable unit (3) by means of said force in the turn mode (TUM) to the turned position (TUP).
57. A tilt and turn type roof window (1) according to item 56, wherein the second handle (18) is arranged at the top (TO, TE) area of the roof window (1), such as at the top end (TE) of the movable unit (3).
58. A tilt and turn type roof window (1) according to item 56 or 57,wherein the movable unit (3), in a fourth mode, is configured to be turned relative to the interconnecting part (11) around said turn axis (AX2) by means of the second handle (18) while the first handle (8) is in the second handle position (HP2) and while the first lock (12, 25) is in an unlocked state.
59. A tilt and turn type roof window (1) according to any of items 46-58, wherein the roof window (1) comprises an electrically powered actuator (9), wherein the electrically powered actuator (9) is configured to provide (F1) said turning of the movable unit (3) around the turn axis (AX2), such as while the first handle (8) remains in said first handle position (HP1).
60. A tilt and turn type roof window (1) according to item 59, wherein the electrically powered actuator (9) is configured to provide (F1) said turning of the movable unit (3) around the turn axis (AX2) while the first lock (12, 25) is in the locked state and while the first handle (8) remains in said first handle position (HP1).
61. A tilt and turn type roof window (1) according to item 59 or 60, wherein the electrically powered actuator (9) engages between the movable unit (3) and the interconnecting part (11, 11a, 11b), or wherein the electrically powered actuator (9) engages between the movable unit (3) and the fixation frame (2, 2a).
62. A tilt and turn type roof window (1) according to any of items 54-61, wherein said actuator (9) and/or said second lock (15) of the roof window (1), is/are configured to keep the movable unit (3) at a substantially closed position relative to the interconnecting part (11) and relative to the fixation frame (2) in said closed and locked mode (CLM).
63. A tilt and turn type roof window (1) according to any of items 59-62, wherein the movable unit (3) is configured to be in the third closed and locked mode (CLM) while the first handle (8) is in the first handle position (HP1), and while the actuator (9) is in an inactive, such as a retracted, actuator state.
64. A tilt and turn type roof window (1) according to any of items 56-63, wherein the electrically powered actuator (9) is fixed between the interconnecting part (11, 11a, 11b) and a handle part (18x) of the second handle (18) of the movable unit (3).
65. A tilt and turn type roof window (1) according to any of items 59-64, wherein the electrically powered actuator (9), such as a motor housing (9a) of the electrically powered actuator (9), is hidden at an actuator space (AS) arranged between the fixation frame (2) and the movable unit (3).
66. A tilt and turn type roof window (1) according to any of items 59-65, wherein the electrically powered actuator (9) is arranged so that the movable unit (3) is allowed to be manually turned around the tilt axis (AX1) relative to the fixation frame (2) in the tilt mode (TIM) by means of the at least one first hinge (6) while the first handle (8) remains in said second handle position (HP2), such as by means of pushing the first handle (8).
67. A method according to any of items 59-66, wherein the electrically powered actuator (9) is configured to turn the movable unit (3) around the turn axis (AX2) relative to the interconnecting part (11) in the turn mode (TUM) while the first handle (8) remains in said second handle position (HP2).
68. A tilt and turn type roof window (1) according to any of items 46-67, wherein the turn axis (AX2) is configured to move together with the interconnecting part when the movable unit (3) is arranged in the tilted position (TIP).
69. A tilt and turn type roof window (1) according to any of items 48-68, wherein the roof window (1) comprises a switching mechanism (10), wherein said switching mechanism (10) comprises a displaceable part (10a) which is configured to be displaced (10a) so as to control an engagement part (12) of the first lock (25), wherein said displaceable part (10a) is displaceably attached (19), such as linearly displaceably attached, to the fixation frame (2).
70. A tilt and turn type roof window (1) according to item 69, wherein said displaceable part (10a) of the switching mechanism (10) is displaceably attached (19) to the fixation frame (2) by means of a guide (19, 19a, 19b), such as a linear guide.
71. A tilt and turn type roof window (1) according to item 69 or 70, wherein the displaceable part (10a) of the switching mechanism (10) is configured to be displaced mechanically by manipulating the first handle (8).
72. A tilt and turn type roof window (1) according to item 69, 70 or 71, wherein the displaceable part (10a) of the switching mechanism (10) is configured to be displaced by means of an electric motor and/or biasing means.
73. A tilt and turn type roof window (1) according to any of items 69-72, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode by means of said switching mechanism (10), such as by means of said guide (19),
and/or
wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of said switching mechanism (10), such as by means of said guide (19), while the movable unit (3) is in said turn mode (TUM).
74. A tilt and turn type roof window (1) according to any of items 69-73, wherein the engagement part (12) of the first lock (25) is configured to engage with the interconnecting part (11, 11a, 11b) so as to lock the interconnecting part (11, 11a, 11b) to the fixation frame (2), such as by means of said guide (19), at least while the movable unit (3) is in said turn mode (TUM).
75. A tilt and turn type roof window (1) according to item 74, wherein the engagement part (12) of the first lock (25) moreover is configured to engage with the interconnecting part (11, 11a, 11b) so as to lock the interconnecting part (11, 11a, 11b) to the fixation frame (2) while the movable unit (3) is in said third closed and locked mode (CLM).
76. A tilt and turn type roof window (1) according to any of items 69-75, wherein the movable unit (3) is configured to open in an opening direction (ODR) from a closed position (CP) when set in the tilt mode (TIM),
- wherein the first handle (8) is mechanically coupled to the switching mechanism (10) by means of a mechanical coupling (14a, 14b), wherein the movable unit (3) comprises a first part (14a) of the mechanical coupling, wherein the first part (14a) of the mechanical coupling is configured to disengage from a second part of the coupling (14b) when the movable unit (3) opens in the opening direction (ODR) from the closed position,
- such as wherein said switching mechanism (10) comprises said second part (14b) of the mechanical coupling.
76a. A tilt and turn type roof window (1) according to any of items 46-76, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode by means of a switching mechanism (10), such as by means of a guide (19),
and/or
- wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of a switching mechanism (10), such as by means of a guide (19), while the movable unit (3) is in said turn mode (TUM).
- 76b. A tilt and turn type roof window (1) according to any of items 46-76a, wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) in said third closed and locked mode by means of a guide (19), such as a linear guide,
  and/or
- wherein the movable unit (3) is configured to be interlocked to the fixation frame (2) by means of a guide (19), while the movable unit (3) is in said turn mode (TUM).
76c. A tilt and turn type roof window (1) according to any of items 69-76b, wherein a displaceable part (10a), such as said displaceable part of the switching mechanism (10), is configured to be displaced in a direction that is parallel to the longitudinal direction of the side frame profile (2c) of the fixation frame (2).
77. A tilt and turn type roof window (1) according to any of items 46-76c, wherein the interconnecting part (11a, 11b, 11c, 11) comprises an intermediate frame arranged between the fixation frame (2) and the unit frame (4),
wherein the intermediate frame comprises intermediate side profiles (11a, 11b) which, at least in the closed and locked mode, are configured to extend along the longitudinal direction of the side frame profiles (2c).
78. A tilt and turn type roof window (1) according to item 77, wherein the intermediate frame (11) comprises an intermediate top profile (11c) extending in a longitudinal direction which is parallel to the longitudinal direction of the top frame profile (2a), wherein the intermediate top profile (11c) extends between and connects the intermediate side profiles (11a, 11b).
79. A tilt and turn type roof window (1) according to any of items 46-78, wherein the interconnecting part (11, 11a, 11b) comprises a movable hinge arm of the at least one first hinge (6).
80. A tilt and turn type roof window (1) according to any of items 46-78, wherein the interconnecting part (11, 11a, 11b) is a movable hinge arm of the at least one first hinge (6), such as a part that is unitary with the at least one first hinge.
81. A tilt and turn type roof window (1) according to any of items 46-80, wherein the interconnecting part (11) comprises elongated side members (11a, 11b) extending at both sides of the movable unit (3), wherein the elongated members (11a, 11b), such as a distal part of the elongated members (11a, 11b), comprises at least a part of the second hinges (7).
82. A tilt and turn type roof window (1) according to any of the preceding items, wherein the roof window (1) is installed in a roof structure (210) of a building (200) so that the top (TO) of the roof window (1) is arranged at a higher vertical position than the bottom (BO) of the roof window (1).
83. A tilt and turn type roof window (1) according to any of the preceding items, wherein the lock arrangement (15, 25, 14a, 14b, 12, 12a), such as said first lock (25, 12), is configured so that the interconnecting part (11, 11a, 11b) is configured to be maintained in a substantially fixed position relative to the fixation frame (2) when the movable unit (3) is rotated relative to the interconnecting part around said turn axis (AX2) to said turned position.
84. A tilt and turn type roof window (1) according to any of the preceding items, wherein the lock arrangement (15, 25, 14a, 14b, 12, 12a), such as said first lock (25, 12), Is configured so that the interconnecting part (11, 11a, 11b) is configured to be maintained in a substantially fixed position relative to the fixation frame (2) during the entire rotation of the movable unit (3) relative to the interconnecting part (11) around said turn axis (AX2) to said turned position (TUP).
85. A tilt and turn type roof window (1) according to any of the preceding items, wherein the position of the interconnecting part (11) is configured to be substantially the same when the movable unit (3) is in the turned position (TUP) and when the movable unit (3) is in the closed and locked mode (CLM).
86. A tilt and turn type roof window (1) according to any of the preceding items, wherein the roof window (1) is configured to be installed in a roof structure (210) of a building (200) so that the top (TO) of the roof window (1) is arranged at a higher vertical position than the bottom (BO) of the roof window (1).
87. A set (1, 9) comprising:
- a roof window (1) according to any of items 1-25 and/or 45, and
- an electrically powered actuator (9) for installation in a predefined actuator space (AS) of the roof window (1), wherein the actuator (9) comprises an actuator housing (9a) and an actuating part (9b), such as a push-pull chain,
wherein the electrically powered actuator (9) is configured to be installed at the roof window according to the method according to any of items 26-44.
88. A set (1, 9) comprising:
- a roof window (1) according to any of items 46-85, and
- an electrically powered actuator (9) for installation in an actuator space (AS) of the roof window (1), wherein the actuator (9) comprises an actuator housing (9a) and an actuating part (9b), such as a push-pull chain,
wherein the electrically powered actuator (9) is configured to be installed at the roof window according to the method according to any of items 26-44.

Claims

A tilt and turn type roof window (1) for a building, wherein the tilt and turn type roof window (1) comprises:
- a fixation frame (2) comprising a top frame profile (2a), a bottom frame profile (2b) and side frame profiles (2c), wherein the side frame profiles (2c) extends between the top and bottom frame profiles (2a, 2b),

- a movable unit (3), wherein the movable unit (3) comprises a unit frame (4) and an insulated glass unit (5) which is attached to the unit frame (4), wherein the movable unit (3) comprises a first handle (8), wherein the first handle (8) comprises a gripping part (8a) configured to be grabbed by human hand, wherein the first handle (8) is configured to be moved relative to the movable unit (3) from a first handle position (HP1) to a second handle position (HP2) by a human user, wherein the first handle (8) is arranged at the bottom (BO) of the roof window (1), wherein the movable unit (3) moreover comprises a second handle (18),

- an interconnecting part (11, 11a, 11b), wherein the interconnecting part (11) interconnects said movable unit (3) and said fixation frame (2),

wherein the movable unit (3), in a tilt mode (TIM), is configured to turn relative to the fixation frame (2) around a tilt axis (AX1) by means of at least one first hinge (6) so as to arrange the movable unit (3) in an open, tilted position (TIP), wherein the tilt axis (AX1) is arranged at a top (TO) part of the roof window (1), wherein said interconnecting part (11) is configured to move together with the movable unit (3) relative to the fixation frame (2) in said tilt mode (TIM),

wherein the movable unit (3), in a turn mode (TUM), is configured to be turned around a turn axis (AX2) arranged between the top part (TO) of the roof window (1) and a bottom part (BO) of the roof window (1) by means of second hinges (7) so as to arrange the movable unit (3) in a turned position (TUP), wherein the tilt axis (AX1) and the turn axis (AX2) are parallel,

wherein the movable unit (3) is supported by the interconnecting part (11, 11a, 11b) and is configured to turn relative to the interconnecting part (11, 11a, 11b) around said turn axis (AX2) in said turn mode (TUM),

wherein the movable unit (3), in a third closed and locked mode (CLM), is configured be in a closed and locked position relative to the fixation frame (2), wherein the first handle (8) is configured to be in the first handle position (HP1) in the third closed and locked mode,

wherein the roof window (1) comprises a first lock (12, 12a, 25) which in a locked state is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2), so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first handle (8) remains in said first handle position (HP1),

wherein the roof window (1) comprises a second lock (15) which in a locked state is configured to lock the movable unit (3) in the third, closed and locked mode,

wherein the second handle (18) is configured to be operated so as to switch the second lock (15) between the locked state and an unlocked state, and wherein the second handle (18) is configured to be manually pulled or pushed with a force so as to turn the movable unit (3) by means of said force in the turn mode (TUM) to the turned position (TUP),

wherein the movable unit (3), in a fourth mode (Fig. 5E), is configured to be turned relative to the interconnecting part (11) around said turn axis (AX2) by means of the second handle (18) while the first handle (8) is in the second handle position (HP2) and while the first lock (12, 12a, 25) is in an unlocked state.
A tilt and turn type roof window (1) according to claim 1, wherein the first lock (12, 12a, 25), in the locked state of the first lock, is configured to interlock the interconnecting part (11, 11a, 11b) and the fixation frame (2), such as at least in the turn mode (TUM), so that said turning of the movable unit (3) around the turn axis (AX2) is allowed while the first lock (12, 12a, 25) is in the locked state and while the first handle (8) remains in said first handle position (HP1).
A tilt and turn type roof window (1) according to any of the preceding claims, wherein the second lock (15), in the locked state of the second lock, is configured to interlock the interconnecting part (11, 11a, 11b) and the movable unit (3) in the third, closed and locked mode (CLM).
A tilt and turn type roof window (1) according to any of the preceding claims, wherein the second handle (18) is arranged at the top (TO) of the roof window (1), such as at the top (TE) of the movable unit (3).
A tilt and turn type roof window (1) according to any of the preceding claims, wherein the second lock (15) is configured to be operated by means of the second handle (18) independently of the handle position (HP1, HP2) of the first handle (8).
A tilt and turn type roof window (1) according to any of the preceding claims, wherein the first lock (12, 25) is configured to be operated by means of the first handle (8) so as to control said first lock (12, 12a, 25) between the locked state and an unlocked state, and wherein the first handle (8) is configured to be moved from the first handle position (HP1) to the second handle position (HP2) by a human user so as to put the first lock (12, 12a, 25) in the unlocked state, thereby unlocking the interconnecting part (11, 11a, 11b) and the fixation frame (2) so as to put the movable unit (3) in the tilt mode (TIM).
A tilt and turn type roof window (1) according to any of the preceding claims, wherein the roof window (1) comprises a predefined actuator space (AS) configured to receive and house an actuator (9) housing (9a) of a retrofitted electrically powered actuator (9).
A tilt and turn type roof window (1) according to claim 7, wherein the actuator housing (9a) is configured to be substantially hidden when installed at the actuator space (AS), at least when the movable unit (3) is in the third closed and locked mode (CLM),
such as wherein the actuator space (AS) is arranged between the fixation frame (2) and the movable unit (3), such as between the interconnecting part (11) and the movable unit (3).
A tilt and turn type roof window (1) according to claim 8 or 9, wherein the actuator space (AS) is arranged at the top (TO) area of the roof window (1).
A tilt and turn type roof window (1) according to any of claims 7-9, wherein the roof window (1) comprises a predefined connection interface (9x1, 9y1) for attachment of the electrically powered actuator (9),
such as wherein the predefined connection interface (9x1, 9y1) comprises one or more of:
• one or more predefined holes or dents,

• one or more predefined visual markings indicating actuator (9) position and/or connection interface position, so as to help the user with correct actuator (9) positioning

• one or more mountings,

• one or more clips

• one or more protrusions

• one or more tracks, such as elongated tracks
A method of retrofitting the tilt and turn type roof window (1) according to any of the preceding claims with an electrically powered actuator (9), wherein the method comprises:
providing an electrically powered actuator (9), wherein the electrically powered actuator (9) comprises an actuator housing (9a) and an actuating part (9b), such as a push-pull chain,

connecting, such as attaching, a first part (9a, 9b) of the provided electrically powered actuator (9) to the movable unit (3), such as to a handle part (18x, 18, 18a) of the of the movable unit (3),
and

connecting, such as attaching, a second part (9a, 9b) of the provided electrically powered actuator (9) to the fixation frame (2) or to the interconnecting part (11).
A method according to claim 11, wherein the provided electrically powered actuator (9) is arranged so that the movable unit (3) is allowed to be manually turned around the tilt axis (AX1) relative to the fixation frame (2) in the tilt mode (TIM) by means of the at least one first hinge (6) while the first handle (8) remains in said second handle position (HP2), such as by means of pushing the first handle (8).
A method according to any of claims 11-12, wherein the provided electrically powered actuator (9) is arranged so as to turn the movable unit (3) around the turn axis (AX2) relative to the interconnecting part (11) in the turn mode (TUM) while the first handle (8) remains in said first handle position (HP1).
A method according to any of claims 11-13, wherein the provided electrically powered actuator (9) is configured to turn the movable unit (3) around the turn axis (AX2) relative to the interconnecting part (11) in the turn mode (TUM) while the first handle (8) remains in said second handle position (HP2).
A method according to any of claims 11-14, wherein the roof window (1) comprises a predefined actuator space (AS) configured to receive and house the housing (9a) of the provided electrically powered actuator (9),
wherein the method comprises arranging the housing (9a) of the electrically powered actuator (9) at the predefined actuator space (AS)

such as wherein said housing (9a) of the provided electrically powered actuator (9) is substantially hidden when installed at the actuator space (AS), at least when the movable unit (3) is in the third closed and locked mode (CLM).
A method according to any of claims 11-15, wherein the roof window (1) comprises one or more first connection interface parts (9x1, 9y1),
wherein the provided electrically powered actuator (9) comprises one or more second connection interface parts (9x2, 9y2),

wherein the one or more first connection interface parts (9x1, 9y1) are configured for connection, such as attachment, of the provided electrically powered actuator (9) by means of said one or more second connection interface parts (9x2, 9y2),

wherein the method comprises connecting, such as attaching, the provided electrically powered actuator (9) to the roof window (1) by means of said first and second connection interface parts (9x1, 9y1, 9y2, 9x2).