FR2946078A1 - Limiter for use in assembly to limit opening of chassis of opening frame e.g. window, assembled on fixed frame, has openings that are distinct from each other and placed between one of opening and end of limiter to disengage carriage - Google Patents

Abstract

The invention relates to an opening limiter. According to the invention, this opening limiter comprises a longitudinal body comprising an upper face (2) comprising a first orifice (3) for the rotational connection of this limiter to the frame of the opening (4), this first orifice ( 3) being placed at one end of said limiter, and a bottom face (8) at least partially recessed to define a guide rail (9) along said longitudinal body, the longitudinal body being hollow at least in line with said rail. The lower face (8) also comprises a first recess opening at one of its ends in the guide rail (9) and at its other end in a first opening (11) placed on one of the lateral edges of the limiter for the introduction of a carriage (12) secured to the frame (13) in the rail when the frame of the opening (4) is in the closed position, and a second recess opening at one of its ends in the guide rail (9) and at its other end in a second opening (17) placed on the same side edge of the limiter as the first opening (11), this second opening (17) being distinct from the first opening (11) and placed between this first opening ( 11) and the end of the limiter opposite to that receiving the first port (3) to allow the disengagement of the carriage (12) of the limiter.

Description

Opening limiter and assembly comprising such a limiter

The present invention relates to an opening limiter for opening. The invention also relates to an assembly for limiting the opening of a sash frame mounted on a frame including such a limiter. Devices are known for limiting the opening of an opening such as a window or a door. Some of these devices are directly mounted on the frame of the opening. However, these devices that are unattractive, leave apparent the holes created for their attachment to the frame of the opening after removal.

It may then be necessary to hide these orifices and other unsightly traces such as discoloration of the chassis leaving a visible impression of the device. It then follows significant costs for a result sometimes inconclusive. In addition, when these devices are mounted by an unqualified operator, assembly errors can result in a malfunction thereof which no longer fulfill their role of child protection. However, statistically, defenestration is one of the most frequent household accidents involving children under 5 years old. Without calling into question the part of vigilance essential of the adults in the prevention of this risk, it can be useful to be able to have on its windows of systems making it possible to partially or totally condemn access to the outside of a room where stays a young child. A solution has been proposed to integrate in the frame of the joinery opening limiting devices. The forging and locking of a tilt-and-turn is done for example with a metal hardware controlled by rotating handle with rods and locking compass. This solution advantageously allows to maintain a window in a position ajar at the top for safe ventilation. However, this type of aperture limiting devices of the state of the art has serious drawbacks. These devices require installation at the assembler and therefore can not be adapted to existing joinery. Moreover, the cost of such an opening limiting device is expensive, it is not integrated as standard on joinery. This protection is therefore not accessible to all. It would therefore be interesting to have an opening limiting device easy to install, particularly easy to use to prevent any domestic incident related to a human error and forming an effective security to avoid intrusions.

The objective of the present invention is therefore to provide an opening limiting device, simple in its design and in its operating mode, economic and aesthetic, allowing automatic re-engagement of the opening limiting device in the closed position of the opening and allowing disengagement thereof when opening the opening by a user action. The invention therefore aims a perfectly secure device since by default the limiting device is engaged thereby avoiding human error can result in an incident. Another object is a limiter whose length can be adjusted to determine the opening amplitude of the opening. To this end, the invention relates to an opening limiter of an opening frame mounted on a frame. According to the invention, the opening limiter comprises a longitudinal body comprising: an upper face comprising a first orifice for the rotational connection of said limiter to the sash frame, said first orifice being placed at one end of said limiter; a lower face at least partially recessed to define a guide rail along said longitudinal body, the longitudinal body being hollow at least in line with said rail, said lower face comprising a first recess opening at one of its ends in said rail; guide and at its other end in a first opening placed on one of the lateral edges of said limiter for the introduction of a carriage integral with the frame in said rail when said frame of the opening is in the closed position, and a second recess opening at one of its ends in said guide rail and at its other end in a second opening placed ur the same side edge of said limiter as said first opening, said second opening being distinct from the first opening and placed between this first opening and the end of said limiter opposite that receiving said first port to allow the disengagement of the carriage of said limiter. Advantageously, this opening limiter allows the user to prevent any risk of defenestration of young children while maintaining the possibility if necessary to ventilate his rooms and / or open his windows completely. Because of its integration in the rebate of woodwork, it remains invisible and thus respects the overall aesthetics of the window. In various particular embodiments of this aperture limiter, each having its particular advantages and capable of numerous possible technical combinations: said end of the limiter opposite to that receiving said first orifice comprises retaining means intended to cooperate with said trolley for to maintain said sash frame in ajar position, - the limiter comprises a telescopic part making it possible to vary the length of the longitudinal body of the limiter, this telescopic part being placed between the first opening and the end of the limiter opposite to that receiving the first orifice This arrangement of the telescopic portion of the limiter advantageously makes it possible to ensure that the distance separating the center of the first opening from the center of the first orifice is equal to or substantially equal to that separating the carriage from the center of the first orifice in the position of closing of the opening. This prevents the first opening of the limiter, the latter still being in a partially deployed position, is not placed facing the carriage to allow its insertion into the guide rail when the opening is in the closed position. This telescopic portion may further comprise locking means for adjusting the length of the longitudinal body of the telescopic body. For purely illustrative purposes, the longitudinal body of the limiter comprises two longitudinal body portions, a first of these parts being able to slide in the second. The second part has grooves, evenly distributed or not, which cooperate with one or more securing lugs placed at the end of the first part to ensure the joining of the two parts together. Thus, these grooves can be placed either on the lateral edges of the second body or on its upper face. The end of the first part is then flexible to allow the insertion and removal of this or these pins of said grooves. the distance d separating the center of said first opening from the center of said first orifice is equal to or substantially equal to the distance separating said carriage mounted on the fixed frame from the center of said first orifice when said sash frame is in its closed position, - At least the side edge having the first and second openings comprises recesses for gripping the limiter to disengage the carriage of the longitudinal body of the limiter, for example, each recess is a shaped recess such as a hollow having a shape rounded inwards for manual gripping of the limiter body. at least the edges delimiting the first opening in the lateral edge of the limiter are chamfered to allow the carriage to pass from the outside of the limiter to the guide rail; the guide rail comprises a portion of rail in a narrowing direction; from the first opening to the second opening, placed after the first opening to promote the engagement of the carriage in the guide rail when opening the opening, - the position of the second opening is materialized by a stop placed at inside the longitudinal body.

Thus, the user observes a slight resistance before engagement of the carriage in the end of the limiter opposite to that receiving the first orifice so that it knows that the carriage is opposite the second opening. It then has the possibility by a manual gripping of the body of the limiter and the application to it of a rotational movement about the axis of rotation passing the first orifice of the limiter connected to the frame of the opening (axis the pin or axis of the rod of the fastener) to disengage the carriage from the main body of the limiter. The invention also relates to an assembly for limiting the opening of a sash frame mounted on a frame.

According to the invention, this assembly comprises a limiter as described previously intended to be rotatably mounted on the sash frame, at least one carriage intended to be mounted on the frame and fastening members for fixing said carriage on the frame and said limiter on the frame of the opening.

Advantageously, the carriage comprises a hollow stud connected by a breakable bridging to a cap, this hollow stud being intended to allow the passage of the rod of a fastener for fixing the carriage in the frame. The cap which is hollow to allow the passage of the rod of the fastener comprises at its end a housing for receiving the head of this fastener. It also comprises at least one connecting element of this hat to the stud to ensure their joining. According to a particular mode of implementation, this hollow stud advantageously comprises a tubular body at the end of which is placed a collar. This collar is connected by a breakable bridging hat. The latter comprises two flexible tabs intended to provide spacing during the introduction of the rod of the fastener securing this cap to the stud. Preferably, the limiter being obtained directly from molding, it concentrates alone several main functions. It manages the articulation of the assembly, limits the opening of the opening, controls the manual release of the assembly by an adult and finally, it allows the automatic re-engagement of the limiter when closing the opening. As a result, the overall cost of the assembly in production is directly optimized. Finally, the invention relates to a joinery comprising at least one sash frame mounted on a frame, said frame being able to move between a closed position in which said frame is plated in the frame to close the opening delimited by said frame and at least one half-open position. According to the invention, this joinery is equipped with at least one assembly to limit the opening of a sash frame as described above. Advantageously, in the case of joinery made of plastic or metal, the frame of the opening and the frame are constituted by an assembly of profiles defining at the rabbet of the frame or the groove frame adapted for the reception and the fixing the carriage on the one hand and the limiter on the other hand. The carriage is mounted on the fixed frame so that the opening being moved from its half-open position to its closed position and the limiter being pressed against the sash frame, the carriage is opposite the first opening the limiter to allow the systematic introduction thereof into the guide rail of the limiter when the door is placed in its closed position. In other words, the carriage distance / axis of rotation of the limiter must be determined precisely so that the carriage is found next to the first opening when the door is closed. This ensures an automatic re-engagement of the limiter in the closed position of the opening. The invention will be described in more detail with reference to the accompanying drawings in which: - Figure 1 shows a perspective view of an opening limiter according to a particular embodiment of the invention; FIG. 2 is a view of the lower face of the limiter of FIG. 1; - Figure 3 is a partial view in section of an assembly for limiting the opening of an opening comprising the opening limiter of FIG. 1; FIG. 4 is a side view showing the automatic re-engagement of the carriage in the opening limiter of FIG. 1 in the closed position of the opening; FIG. 5 is a partial perspective view showing the limiter of FIG. 1 disengaged from the carriage mounted in the framework of the frame; FIG. 6 shows in perspective and in transparency the successive steps of displacement of the carriage in the guide rail of the limiter of FIG. 1 when opening the opening, the frame of the opening has been omitted for the sake of clarity; Figures 1 and 2 show an opening limiter according to a preferred embodiment of the invention. This opening limiter 1 is advantageously in one piece. It can be made of a hard plastic material such as polyamide to hold the tensile forces when opening the opening. This opening limiter 1 comprises a hollow longitudinal body having an upper face 2 having a first orifice 3 placed at one end of the limiter for the rotational connection of this limiter to the frame of the opening 4. This link in free rotation of the limiter 1 to the frame of the opening 4 is important because it allows the movement of the limiter when opening and closing the door. The first orifice 3 is surrounded by a hollow finger 5 centered on this first orifice. This hollow finger 5 is rotatable about an axis of rotation of the limiter mounted on the frame of the opening 4. For this, the fixing member 6 of the screw type of the limiter 1, is surrounded by a stud 7 received in the hollow finger 5 through the first port 4 so as to decouple the fastener member of the limiter. This pad 7 which thus forms an axis of rotation is made of a material having a low coefficient of friction such as poly (acetal) (POM), so that its external surface in contact with the finger 5 allows the sliding of the body of the limiter 1 around this stud 7. The lower face 8 of the longitudinal body is partially recessed to define a guide rail 9 along the longitudinal body. This lower face 8 further comprises a first recess 10 opening at one of its ends in the guide rail 9 and at its other end in a first opening 11 placed on one of the lateral edges of the limiter for the introduction of a carriage 12 secured to the fixed frame 13 in the guide rail 9 when the frame of the opening 4 is in the closed position. Figure 4 shows the insertion of this carriage 12 into force in the limiter 1 when closing the opening. Chamfers 14 placed on the edges of the first opening 11 facilitates the insertion of the carriage 12 into force in the guide rail 9 from the outside of the limiter 1. The limiter of the present invention thus allows automatic re-engagement of the latter. while closing the opening 4 thus offering maximum security since the limiter is operating by default. In order to ensure this automatic re-engagement, the distance d separating the center of this first opening 11 from the center of the first orifice 3 is equal to or substantially equal to the distance separating the center of the carriage 12 mounted on the fixed frame 13 from the center of the first orifice 3 when the sash frame is in its closed position. In other words, the carriage distance / axis of rotation of the limiter must be determined precisely so that the carriage 12 is found opposite the first opening 11 when the opening 4 is closed. When opening the opening, the limiter 1 is guided in displacement by the carriage 12 because the latter slides inside the guide rail 9. The opening limiter will therefore deploy, until that the carriage reaches the end of the race at the end of the limiter opposite that comprising the finger 5. The opening movement of the opening 4 is then stopped. This opposite end then advantageously comprises retaining means for cooperating with the carriage 12 to maintain the sash frame 4 in the interlocked position. These retaining means are here pins 15 for retaining the carriage 12. These lugs 15 thus keeping the carriage in position, prevents the opening can be closed unexpectedly for example due to an air current. They also fulfill a safety function vis-à-vis the disengagement of the carriage assembly 12 and opening limiter 1. Indeed, once engaged, it is necessary to release the carriage 12 of these retaining means 15 for possible then disengage the carriage / limiter assembly. However, these retaining means 15 are dimensioned so that a child can not release the carriage 12 alone. The lower face 8 comprises a second recess 16 opening at one of its ends in the guide rail 9 and at its other end in a second opening 17 placed on the same lateral edge of the limiter as the first opening 11, this second opening 17 being distinct from the first opening 11 and placed between this first opening 11 and the end of the limiter opposite to that receiving the first orifice 3 for allow the disengagement of the slide 12 of the limiter. This second opening 17 thus allows disengagement or disengagement of the trolley of the limiter to allow maximum opening of the opening. Thus, once the opening limiter engaged, an adult however has the opportunity to manually disengage. Although simple, the process was intended in two stages and requiring the physical strength of an adult to make it difficult for a toddler to achieve. For this, the user exerts a pressure on the opening in the closing direction in order to unclip the carriage 12 from its guide rail bottom position, that is to say from its position in which the carriage at the opposite end of the limiter 1 is held in position by retaining means 15. Then, by an action on the opening, the user then positions the carriage 12 in the guide rail 9 at the height of the zone of disengagement of the arm which is materialized by the second opening 17, and then exerts a traction of his hand on the longitudinal body of the limiter 1 to bring it under the opening after unclipping in force of the carriage 12. In order to to facilitate the identification of the disengaging zone, the upper face 2 of the limiter 1 may comprise a visual symbol 23 placed at the second opening 17. The unclipping force at these two steps is dimensioned so that a child in young age can hardly provide the effort required for its implementation, unlike an adult for which the limiter is particularly ergonomically adapted. Indeed, the longitudinal body of the limiter comprises a gripping zone 18 arranged on the longitudinal body for adult fingers. This gripping zone 18 has recesses 19 having a rounded shape. In order to prevent any untimely exit and to promote a displacement of the carriage once introduced into the guide rail 9 along this rail, the lateral edges of the longitudinal body of the limiter 1 have a thickness greater than 2 mm. Chamfers placed on the internal edges delimiting the second opening 17 can facilitate the exit of the carriage from the guide rail 9 of the limiter by the second opening 17. FIG. 6 shows the kinematics of movement of the carriage 12 in the body of the limiter of opening 1 from the closed position of the opening 4 to its half-open position. A good kinematics of the carriage 12 in the guide rail essentially depends on the fact that the latter can have no other choice after re-engagement of the system than to slide in the guide rail 9. This becomes effective because of the it is difficult to pass to integrate the guide rail 9 at the level of the first opening 11, which passage is favored by the chamfers 14 arranged in the outer edges defining this first opening 11 (FIG 6a). Once the passage of the guide carriage 12 is effected from the outside of the limiter 1 towards the guide rail 9, the opposite path has sufficient strength and chamfers 19 on the inside in the direction of the rail favor the movement of the carriage along the longitudinal body of the limiter 1 at the opening of the sash (Fig. 6b). Thus, at the first opening 11, the guide rail 9 has a narrowing rail portion 19, the latter being followed in the direction of the first opening 11 to the second opening 17 of another rail portion 20 of diameter equal to or substantially equal to the smallest diameter of the narrowing rail portion 19. This other rail portion 20 comprises a housing 21 for receiving said carriage 12 thus defining a stable intermediate position between the first and second openings 11, 17 (Fig. 6c). Indeed, if the operator exerts more action on the opening, the carriage 12 remains in this housing 21, the opening being in an intermediate open position at the closed position and half opening for which opening is about eight centimeters. Of course, the latter can be increased with a longitudinal body of the telescopic limiter 1.

Finally, when the opening 4 is in its maximum open position, the carriage 12 is placed at the end of the limiter opposite that with the first orifice 3 being retained by retaining means 15. At the right of this zone , the lower face 8 of the limiter comprises a flat cutout 22 intended to cooperate with the head of the carriage 12 to prevent disassembly of the carriage / limiter assembly by inclination of the limiter 1.

This flat cutout 22 here comes under the head of the carriage 12 so as to block any vertical movement of the limiter 1. For purely illustrative purposes and in a particular embodiment, the mounting of the opening limiter on a carpentry PVC takes place in two stages. First of all, the cylindrical finger of the opening limiter 1 is positioned in the cremone groove of the opening 4 at its lower cross member, and then the axis of rotation is inserted therein. The latter materialized by a stud 7, fixed by a screw 6 in the profile, has the function of maintaining the body of the limiter 1 on the opening 4 without locking it in rotation, in the manner of a spacer. The mounting of the carriage 12 on the PVC frame is obtained for its part, by the positioning of the carriage 12 inside the pareclose groove of the PVC frame. Then, its position in the groove must be such that the carriage is found in front of the re-engagement zone 11 of the opening limiter 1 when the opening 4 is closed. To do this, a installer can simply identify with a pencil the position of this area at the opening on the inside of the house, close the door leaf and postpone the position on the lower cross member of the frame. He then only has to position his carriage in front of the line, before fixing it by screwing with the fastener such as a screw, provided for this purpose. The latter will have a rod preferably long enough to allow a grip on two walls in the PVC frame profile, to optimize the tear resistance of the guide carriage.

Claims (14)

REVENDICATIONS1. Opening limiter of a sash frame (4) mounted on a frame (13), characterized in that it comprises a longitudinal body comprising: - an upper face (2) having a first orifice (3) for the rotational connection of said limiter to the frame of the opening (4), said first orifice (3) being placed at one end of said limiter, - a bottom face (8) at least partially hollowed out to define a guide rail (9) along said longitudinal body, the longitudinal body being hollow at least in line with this rail, - said lower face (8) comprising a first recess opening at one of its ends in said guide rail (9) and at its other end in a first opening (11) placed on one of the lateral edges of said limiter for the introduction of a carriage (12) integral with the fixed frame (13) in said rail when said frame of the opening (4) is in the closed position , and a second recess leading to one of its ends in said guide rail (9) and at its other end in a second opening (17) placed on the same side edge of said limiter as said first opening (11), said second opening (17) being distinct from the first opening (11) and placed between this first opening (11) and the end of said limiter opposite that receiving said first orifice (3) to allow the disengagement of the carriage (12) of said limiter. 2. Limiter according to claim 1, characterized in that said end of the limiter opposite to that receiving said first orifice (3) comprises retaining means (15) for cooperating with said carriage (12) to maintain said sash frame (4) in the half-open position. 3. Limiter according to claim 1 or 2, characterized in that the limiter (1) comprises a telescopic portion for varying the length of said longitudinal body, said telescopic portion being placed between said first opening (11) and the end of the limiter opposite to that receiving said first orifice (3). 4. Limiter according to any one of claims 1 to 3, characterized in that the distance d between the center of said first opening (11) of the center of said first orifice (3) is equal to or substantially equal to the distance separating said carriage ( 12) mounted on the fixed frame (13) of the center of said first opening (3) when said sash frame (4) is in its closed position. 5. Limiter according to any one of claims 1 to 4, characterized in that said upper face (2) comprises a hollow finger (5) centered on said first hole (3), said hollow finger protruding and being intended to be rotatably mounted in said sash frame (4). 6. Limiter according to any one of claims 1 to 5, characterized in that at least said lateral edge comprising said first and second openings (11, 17) comprises recesses (19) for gripping said limiter to disengage said carriage ( 12). 7. Limiter according to any one of claims 1 to 6, characterized in that at least the edges defining said first opening (11) in the lateral edge of the limiter are chamfered to allow the passage of said carriage (12) from the outside said limiter to said guide rail (9). 8. Limiter according to any one of claims 1 to 7, characterized in that said guide rail (9) comprises a narrowing rail portion (19) in the direction of said first opening (11) to said second opening ( 17) placed after said first opening (11) to promote engagement of said carriage (12) in said guide rail (9) upon opening of the opening (4). 9. Limiter according to claim 8, characterized in that said narrowing rail portion is followed in the direction of said first opening (11) to said second opening (17) of another rail portion of equal or substantially equal diameter at the smaller diameter of the narrowed rail portion, said other rail portion including a housing for receiving said carriage (12) thereby defining a stable intermediate position between said first and second openings (11, 17). 10. Limiter according to any one of claims 1 to 9, characterized in that said lateral edges of the longitudinal body of the limiter (1) have a thickness preventing untimely exit of the carriage (12) of said guide rail (9). 11. Limiter according to any one of claims 1 to 10, characterized in that the position of the second opening (17) is embodied by a stop placed inside said longitudinal body. 12. Assembly for limiting the opening of a sash frame (4) mounted on a frame (13), characterized in that it comprises a limiter according to any one of claims 1 to 11 to be mounted movable in rotation on the frame of the opening (4), at least one carriage (12) intended to be mounted on the fixed frame (13) and fasteners for fixing said carriage (12) on the fixed frame ( 13) and said limiter on the frame of the opening (4). 13. The assembly of claim 12, characterized in that said carriage (12) comprises a hollow stud connected by a breakable bridging to a cap, said hollow stud being intended to allow the passage of the rod of a fastener for the fixing said carriage (12) in the frame (13). 14. Carpentry comprising at least one sash frame (4) mounted on a fixed frame (13), characterized in that said joinery is equipped with at least one assembly for limiting the opening of a sash frame ( 4) according to claim 12 or 13.