WO2020174384A1

WO2020174384A1 - Wall lamp with variable opening system

Info

Publication number: WO2020174384A1
Application number: PCT/IB2020/051587
Authority: WO
Inventors: Lawrence MAGHNAGI; Angelino TACCHI
Original assignee: Forma Lighting Italia SRL
Current assignee: Forma Lighting Italia SRL
Priority date: 2019-02-25
Filing date: 2020-02-25
Publication date: 2020-09-03
Anticipated expiration: 2021-08-25
Also published as: IT201900002673A1

Abstract

Lamp comprising: a light source (430); a support plate (100), extending along a longitudinal-vertical plane (X-Z), parallel to a surface (19) such as a wall or a ceiling on which the plate can be mounted; one or more electrical and/or electronic components (120,130,140) for controlling the lamp; a reflector (200) made of material suitable for causing at least partial reflection of the light emitted by the light source (430), the reflector (200) being during use coupled to the plate in a manner axially fixed with respect to the latter in a transverse direction (Y-Y) perpendicular to the longitudinal-vertical plane (X-Z); a cover (400) hinged with the reflector (200) in a position on the outside thereof, the light source (430) being arranged inside the cover (400) so as to illuminate the reflector. The lamp also comprises a motor (410) for opening the cover, arranged between the reflector (200) and the cover (400) so as to cause the rotation of the cover (400) with respect to the reflector (200) about a hinging axis (411) parallel to the plane of the plate, in order to obtain different opening/closing configurations of the lamp; and/or a rack (110) and a motor (310) for rotation of the lamp, the shaft of which carries a pinion (311) for meshing with the teeth of the rack (110); the rack (100) being rotational integral with either one of the plate (100) or the reflector (200), and the motor (310) being rotationally integral with the other one of the plate (100) or the reflector (200), so that actuation of the motor shaft causes rotation of the reflector and cover with respect to the plate (100) about an axis perpendicular to the longitudinal-vertical plane (X-Z).

Description

WALL LAMP WITH VARIABLE OPENING SYSTEM

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The present invention relates to a wall lamp with a variable opening system.

It is known in the technical sector of lighting that there exists the need to provide wall lamps which both have a high lighting capacity when required, but which are also able to vary the diffusion of the light, while also forming furnishings which are visually attractive.

The technical problem which is posed is therefore that of providing a wall lamp which is able to satisfy these requirements.

In connection with this problem it is also required that this lamp should have small dimensions, be easy and inexpensive to produce, assemble and maintain and also be able to be easily installed at any user location using normal standardized connection means.

These results are obtained according to the present invention by a wall/ceiling lamp with variable opening system according to the characteristic features of Claim 1 .

Further details may be obtained from the following description of a non-limiting example of embodiment of the subject of the present invention provided with reference to the attached drawings in which:

Figure 1 : shows a partially sectioned exploded view of a lamp according to the present invention;

Figure 2: shows a plan view of a support plate of the lamp according to Fig. 1 ; Figure 3: shows an exploded view of the opening/closing cover of the lamp according to Fig. 1 ;

Figure 4: shows a partially sectioned side view of the lamp according to Fig. 1 in the assembled and closed position;

Figure 5: shows a front view of the lamp according to the invention in the closed condition, mounted on a wall;

Figure 6: shows a perspective view of the lamp according to Fig. 5 in the open condition;

Figs. 7a-7d: show views of the lamp according to the invention lit in different opening positions for diffusion of the emitted light; and

Figure 8: shows a partially sectioned side view of the lamp according to Fig. 1 assembled with a detail of the sequential mounting of the reflector on the fixed plate.

As illustrated, assuming solely for easier description and without a limiting meaning, a set of three axes respectively in a longitudinal direction X-X, corresponding to a widthwise dimension, transverse direction Y-Y corresponding to a depthwise dimension, and vertical direction Z-Z, corresponding to a lengthwise/heightwise dimension of the lamp, a preferred embodiment of the lamp according to the invention comprises essentially:

- a support plate 100 of the lamp, extending in a vertical-longitudinal plane Z-X parallel to a wall and/or ceiling on which the plate can be mounted, via means which are conventional per se and not shown; the plate 1 10 has, integral therewith, an annular rack 1 10 fixed to the plate and in particular kept at a certain distance in the transverse direction Y-Y by means of spacers 1 1 1.

The plate may also have, fixed thereon, the electrical and/or electronic components of the lamp, for example comprising one or more of the following: a driver 120; an electronic control component 130 which manages a wireless connection, for example Bluetooth, and the lighting colours; a dimmer which manages the lighting intensity and emission of the lamp; a component 140 for supplying the voltage, for example 12V, to the control unit 130;

- a reflector 220, in the example of embodiment of the lamp shown having a preferred substantially frustoconical, hollow, form with a side surface asymmetrically cut along a directrix so as to form a top surface 201 extending along a plane X-Z and an inclined side surface 202, the opposite edges 202a, 202b of which are respectively connected to the said surface 201 and to the outer edge of the plate 100; the surface 201 is preferably made of a material suitable for causing at least a partial reflection of the light emitted by a light source and directed towards the said reflector;

- a ring 300 provided with a suitably shaped extension 301 ; during use and according to the preferred example of embodiment shown, the ring is integral with the reflector 200 to which it is connected, for example by means of screws and pins 221 with a female thread extending in the transverse direction.

When the lamp is assembled, the ring 300 and therefore the reflector 200 are axially fixed with respect to the plate 100 in the transverse direction Y-Y, but are able to rotate about an axis parallel to the transverse direction Y-Y, being moved by actuating means comprising a first motor 310, integral with the reflector 200, preferably mounted on the plate 301 of the ring 300. The shaft of the first motor 310 is directed parallel to the transverse direction Y-Y and carries a pinion 31 1 for meshing with the teeth of the rack 1 10, so that rotational operation of the shaft causes rotation of the reflector 200 with respect to the plate 1 10.

Although shown and described with reference to an embodiment with rack 100 integral with the plate 100 and ring 200 integral with the reflector 200 an alternative embodiment with motor integral with the plate 100 and rack integral with the reflector 200 is possible; in both embodiments the relative rotation of the reflector with respect to the fixed plate is ensured. It is also clear to the person skilled in the art how the rack may be in the form of a circle arc or ellipse, although the annular embodiment which allows rotation close to 360 degrees is preferable.

Preferably, the rotation of the reflector 200 is guided by guide rollers 320 which are designed to roll on the smooth inner annular surface of the racks so as to maintain the engagement and relative centring of the reflector with respect to the rack, during rotation of the reflector 200.

Preferably a system for reversible engagement of the reflector 200 and plate 100 is provided, said system in the preferred embodiment being in particular configured to allow the disengagement of the ring 300 from the rack 1 10. In this preferred embodiment, the ring 300 has, integral therewith, a flange 330 substantially in the form of a "U", the arms 331 of which extending along the transverse direction Y-Y have corresponding holes 331 a for allowing engagement of a first end of a respective recall spring 315, the other end 321 of which is fixed to a slide 340 movable parallel to the plane X-Z of the plate 100 and the ring 300.

The slide 340 has, mounted thereon, an element for engaging together the reflector 200 and the plate 100, in particular the ring 300 and the plate 100, preferably consisting of a roller 320a which, when the lamp is assembled, is kept engaged against and-or below the inner annular surface of the rack 1 10, while allowing the relative rotation of the ring 300 and rack 1 10.

The roller 320a is movable together with the slide 340 against the recall action of the springs 315 so as to allow the disengagement of the ring 330 and therefore the reflector 200 from the plate 100.

For this purpose, the slide 340 may have for example an extension projecting in the transverse direction 341 for facilitating the displacement of the slide 340, for example by means of a simple pushing action using a tool such as a screwdriver (Fig. 8) inserted through a hole of the reflector 200, causing the slide 340 and therefore the roller 320a to be displaced towards the inside of the ring and causing disengagement of ring 300 and the rack 1 10, with introduction of a hinge pin connected to the reflector 200.

A flange 205 extending outwards and provided with a through-hole in a direction parallel to the plane X-Z of the plate 100, in particular in the longitudinal direction X-X, is connected to the side surface of the reflector 200.

A cover 400 is hinged together with the reflector 200, in particular by means of a gusset 405 extending inwards from an inner side surface of the cover 400 and a shaft 41 1 inserted into the hole of the flange 205, said shaft 41 1 extending in said direction parallel to the plane of the plate 100, in particular to the longitudinal direction X-X.

A motor 410 is arranged between the reflector 200 and the cover 400, in particular between the flange 205 and the gusset 405 where the reflector 200 are hinged, said motor 410 being able to cause the rotation of the cover 400 with respect to the reflector 200 about the hinge axis 41 1 , so as to obtain different opening/closing configurations of the lamp.

The motor 410, which is generally an electric motor, may in particular have a stator rotationally integral with the flange 205 and therefore the reflector 200, and a rotor rotationally integral with the gusset 405 and therefore with the cover 400. The stator and rotor are preferably arranged coaxially around the axis 41 1 of the hinge for connecting together the reflector 200 and cover 400.

The cover 400 preferably reproduces the form of the reflector 200 with a surface 401 along the plane X-Z and side surface 402, so to engage on top of the reflector.

The cover has a light source which comprises for example: an LED 430, a support 440 for a LED, and an opaque diffuser 460 mounted on a support ring

450; said components may be for example coaxially assembled together inside the cover along its plane X-Z / surface 401.

All the active electronic components and components for controlling the various functions of the lamp, including rotation about the transverse axis Y-Y, opening/closing of the cover 400 and switching on/off of the light source 430, may be operated and controlled remotely by means of a remote control device 500 available to the user.

With this configuration the operating principle of the lamp is as follows:

- The plate 100 is fixed to a wall/ceiling 1.

- The reflector 200 (and therefore the cover hinged with it) are connected to the plate 100 (Fig. 8), for example by inserting the rollers 320 inside the rack 1 10, resting the ring 300 on the rack 1 10 itself and, by operating the slide 340, causing the engaging roller 320a to be displaced towards the inside of the ring so as to allow engagement between ring and rack, said engagement becoming stable upon release of the slide 340 which returns into the position recalled by the springs 315, drawing along with it the engaging roller 320a which is now stably engaged underneath the rack 1 10.

- At this point the source 430 with light emitting LED 430 may be switched on and the motor 41 1 operated so as to cause the relative rotation of the cover 400 with respect to the reflector 200 and the fixed plate 100;

- operation of the second motor in either sense allows opening/closing of the cover 400 at various angles, resulting in varied reflection of the light by the reflector 300 and therefore different lighting conditions as shown in Figs 7a-7d; - if required, the first motor 310 may be operated in either sense so as to cause rotation of the reflector 200 and the cover 400 with respect to the plate 100 and therefore the wall so as to produce a different angular orientation of the light beam emitted and reflected.

Although described in relation to an embodiment complete with first motor 310 and second motor 410 for obtaining both an opening/closing movement of the cover 400 with respect to the reflector 200 and a rotation of the reflector and cover with respect to the plate 100, an embodiment of the lamp is also possible where only the second motor 410 is present in order to provide different opening and closing configurations of the lamp, which remains fixed in a single angular position which is pre-set at the time when it is mounted on the wall/ceiling.

Vice versa, opening/closing may be fixed or non-motorized, it being instead envisaged that the reflector and cover may be rotationally operated with respect to the plate 100.

It is therefore clear how the lamp according to the invention is functionally designed to allow variations in lighting due to the possibility of gradual opening/closing of the lamp cover and, if required, also rotation of the light beam about an axis perpendicular to the wall on which the lamp is mounted.

The assembly without visible components is moreover compact in terms of its structural design and may be easily assembled and also inspected in the case of malfunctions, owing to the possibility of rotating the reflector into an open or closed position with respect to the fixed plate which supports the electrical/electronic components.

Although described in the context of a number of embodiments and a number of preferred examples of embodiment of the invention, it is understood that the scope of protection of the present invention is determined solely by the claims provided below.

Claims

1. Wall lamp comprising:

- a light source (430);

- a support plate (100), extending along a longitudinal-vertical plane (X-Z), parallel to a surface (19) such as a wall or a ceiling on which the plate can be mounted;

- one or more electrical and/or electronic components (120,130,140) for controlling the lamp; characterized in that it comprises:

- a reflector (200) made of material suitable for causing at least partial reflection of the light emitted by the light source (430), the reflector (200) being during use coupled to the plate in a manner axially fixed with respect to the latter in a transverse direction (Y-Y) perpendicular to the longitudinal-vertical plane (X-Z);

- a cover (400) hinged with the reflector (200) in a position on the outside thereof, the light source (430) being arranged inside the cover (400) so as to illuminate the reflector;

and in that the lamp comprises:

- a motor (410) for opening the cover, arranged between the reflector (200) and the cover (400) so as to cause the rotation of the cover (400) with respect to the reflector (200) about a hinging axis (41 1 ) parallel to the longitudinal-vertical plane (X-Z) of the plate, in order to obtain different opening/closing configurations of the lamp; and/or

- a curved rack (1 10) and a motor (310) for rotation of the lamp, the shaft of which is perpendicular to the longitudinal-vertical plane (X-Z) of the plate and carries a pinion (31 1 ) for meshing with the teeth of the rack (1 10); the rack (100) being rotational integral with either one of the plate (100) or the reflector (200), and the motor (310) being rotationally integral with the other one of the plate (100) or the reflector (200), so that actuation of the motor shaft causes rotation of the reflector and cover with respect to the plate (100) about an axis perpendicular to the longitudinal-vertical plane (X-Z).

2. Lamp according to Claim 1 , characterized in that it comprises a system for reversibly engaging together the reflector (200) and the plate (100), which is configured to fix axially in the transverse direction the reflector (200) to the plate (100), but allow rotation thereof about an axis parallel to the said transverse direction (Y-Y) and allow disengagement of the reflector and the cover from the plate (100).

3. Lamp according to Claim 1 or 2, characterized in that it comprises a ring (300) joined together with the reflector and provided with a radial extension (301 ) which carries the rotational motor (310), wherein the rack is an annular rack fixed to the plate (100).

4. Lamp according to Claims 2 and 3, characterized in that the reversible engaging system is configured to allow engagement and/or disengagement of the ring (300) and the motor (310) mounted thereon with/from the rack (100).

5. Lamp according to Claim 4, wherein the reversible engaging system comprises a slide (34) movable parallel to the plane (X-Z) of the plate (100) and the ring (300), wherein the slide (340) carries an element (320a) for engaging together the ring (300) and the rack, preferably comprising a roller (320a) which, when the lamp is assembled, is kept engaged against and/or underneath an internal annular surface of the rack (1 10), while allowing the relative rotation of the ring (300) and the rack (1 10);

and wherein the engaging element (320a) is displaceable together with the slide (340) against the recall action of at least one spring (315) attached to the ring (300), so as to allow disengagement of the ring (300) and therefore the reflector (200) from the plate (100).

6. Lamp according to one of the preceding claims, characterized in that a flange (205) extending outwards and provided with a through-hole in a direction parallel to the plane (X-Z) of the plate (100) is connected to an outer side surface of the reflector (200), in that the cover (400) is hinged with the reflector (200) by means of a gusset (405) extending inwards from an inner side surface of the cover (400) and a shaft (41 1 ) inserted inside the hole of the flange (205) and inside the gusset (405) of the cover, said shaft (41 1 ) extending in said direction parallel to the plane of the plate (100).

7. Lamp according to the preceding claim, wherein the motor (410) for opening the cover (400) is arranged between the flange (205) and the gusset (405).

8. Lamp according to one of the preceding claims, characterized in that the motor (410) for opening the cover (400) comprises a stator rotationally integral with the reflector (200), and a rotor rotational integral with the cover (400), the stator and rotor being arranged coaxially around the axis (41 1 ) of the hinge for connecting together the reflector (200) and cover (400).

9. Lamp according to one of the preceding claims, characterized in that the cover (400) has a form corresponding to and/or complementing the form of the reflector (200) so as to engage on top of it, in particular a substantially frustoconical form with a longitudinal-vertical surface (401 ) and a side surface

(402).

10. Lamp according to one of the preceding claims, characterized in that said light source comprises an LED (430), a support (440) for an LED, and an opaque diffuser (460) mounted on a support ring (450), said components being coaxially assembled inside the cover.

11. Lamp according to Claim 9 or 10, characterized in that said form of the reflector (200) and the cover (400) is a substantially hollow frustoconical form with a side surface asymmetrically cut along a directrix so as to form a top surface (201 ) along a longitudinal-vertical plane and an inclined side surface (202), the opposite edges (202a, 202b) of which are connected to the said surface (201 ).

12. Lamp according to one of the preceding claims, characterized in that one or more of the electrical and/or electronic components (120,130,140) for controlling the lamp, and preferably all of these components, are fixed to the plate; and/or in that

it is associated with a remote control device (500) for remotely controlling the active electronic components and the various functions of the lamp.