Sliding door lock

Abstract

The invention relates to a lock (1), for a door comprising a fixed frame (2) and an opening leaf (3) sliding, relative to the frame, in a first direction (D1), comprising a bolt (4) secured to one of the frame (2) or the opening leaf (3) and a striker (5) secured to the other of the frame (2) or the opening leaf (3), where the bolt (4) comprises a stop (6) in the first direction (D1) and in that the striker (5) is movable in translation in a second direction (D2), intersecting the first direction (D1), between an open position where it disengages the stop (6) and a closed position where it engages the stop (6) and opposes a relative movement of the bolt (4) / striker (5) in the first direction (D1). Abstract figure: Figure 4

Description

Title of the invention: Sliding door lock Technical field

[0001] The invention relates to a lock for a door comprising a fixed frame and a sliding opening leaf, relative to the frame. The invention typically applies to all room doors, whether cold rooms, rooms at room temperature or rooms at higher temperatures. Prior art

[0002] It is known, to produce a sliding door lock, that one of the fixed part and the opening part, most often the opening part, carries a hook-shaped bolt. In known devices the bolt protrudes from the opening part.

[0003] To close the door, a user pulls the opening, to make the bolt enter into a strike plate, provided for this purpose in the frame.

[0004] The user, when leaving the room closed by said door, such as a cold room, for example while carrying an animal carcass, must, upon leaving the cold room, close the door to avoid heat loss. Also, he slides the opening, so as to bring it closer to the frame, so that the bolt enters the strike plate.

[0005] The problem that is often encountered is that the bolt strikes strongly on the parts surrounding the strike plate or on the strike plate itself. This can cause damage to the bolt, the strike plate and / or the said parts surrounding the strike plate into which the bolt must penetrate. This results in wear and sometimes damage to the said surrounding areas and especially to the bolt and / or the strike plate which, thus subjected to brutal shocks, cause frequent repairs and sometimes even damage to the lock. Summary of the invention

[0006] To absorb any possible impact between the bolt and the strike plate or its neighboring part, the lock is shaped to allow opening / closing by a translation of the strike plate in a direction secant to the sliding direction of the opening and to comprise a bolt substantially aligned with said sliding direction. This advantageously makes it possible to equip the bolt with a spring or piston in the sliding direction, in order to absorb any possible impact of the bolt against the strike plate or its neighboring part.

[0007] This advantageously makes it possible to avoid damaging the bolt and / or the strike plate. This further contributes to enabling closing without risk of impact and, as will be shown later, precise positioning of the opening relative to the frame.

[0008] The subject of the invention is a lock, for a door comprising a fixed frame and a sliding opening leaf, relative to the frame, in a first direction, comprising a bolt secured to one of the frame or the opening leaf and a striker secured to the other of the frame or the opening leaf, where the bolt comprises a stop in the first direction and the striker is movable in translation in a second direction, secant to the first direction, between an open position where it disengages the stop and a closed position where it engages the stop and opposes a relative movement of the bolt / strike in the first direction.

[0009] Particular characteristics or embodiments, usable alone or in combination, are: - the part, among the fixed frame and the opening frame, carrying the strike plate, comprises a stop face forming a stop in the first direction, opposite the bolt, and in that the bolt is mounted to slide in the first direction with a damping means, such as a spring, relative to the part, among the fixed frame and the opening frame, carrying the bolt, - the second direction is parallel to the fixed frame, - the open position of the latch is higher than the closed position of the latch, - the stop forms a hook opening towards a direction perpendicular to the first direction and the latch forms a complementary hook, namely a hook opening towards the same direction perpendicular to the first direction, but in the opposite direction, - the latch comprises a locking means in the closed position and / or in the open position, preferably equipped with a return means tending to lock it, - the locking means is actuated by a handle and / or a key.

[0010] According to a second aspect, a door comprising a fixed frame, a sliding opening, relative to the frame, and such a lock, the bolt of which is integral with one of the frame or the opening and the strike plate is integral with the other of the frame or the opening. Brief description of the drawings

[0011] The invention will be better understood on reading the following description, given solely by way of example, and with reference to the appended figures in which:

[0012] [Fig-1] shows, in top view, a lock in the open position,

[0013] [Fig.2] shows, in top view, a lock in the closed position,

[0014] [Fig.3] shows, in top view, a detail of [Fig.l],

[0015] [Fig.4] shows, in perspective view, a lock in the open position,

[0016] [Fig.5] shows, in perspective view, a lock in the closed position,

[0017] [Fig.6] shows, in perspective view, a latch in the open position

[0018] [Fig.7] shows, in perspective view, a latch in the closed position

[0019] [Fig.8] shows, in a cut perspective view, a lock in the closed position,

[0020] [Fig.9] shows, in a partially cut perspective view, a lock in the open position,

[0021] [Fig. 10] shows, in cut perspective view, a lock in the closed position, with an inverted hook. Description of the embodiments

[0022] With reference to [Fig.4], the invention relates to a lock 1 for a door. This door comprises a fixed frame 2 and an opening 3 sliding relative to the frame. The sliding takes place in a first direction D1, advantageously rectilinear. In the figures, this first direction D1 is horizontal.

[0023] The frame 2 forms a frame, advantageously rectangular. The opening 3 has a complementary shape to that of the frame of the frame 2, namely advantageously rectangular, so as to be able to close the opening formed by the frame 2.

[0024] Thus, the opening 3, advantageously substantially flat, slides, parallel to itself, alternately between an open position where the opening 3 releases the frame of the fixed part 2 and a closed position where the opening 3 closes the frame of the fixed part 2.

[0025] The lock 1 comprises a bolt 4 and a striker 5. The bolt 4 is secured either to the frame 2 or to the opening 3. On the contrary, the striker 5 is secured to the other part, namely either to the opening 3 or to the frame 2. The bolt 4 and the striker 5 are arranged on their respective support part, so as to be able to come into contact with each other when the door is in the closed position.

[0026] The bolt 4 comprises a stop 6 along the first direction D1, namely a stop 6 capable of preventing movement along the first direction D1, namely a stop 6 having a surface substantially intersecting the direction DL.

[0027] [Fig. 1] schematically shows the bolt 4 and its stop 6. The detail of [Fig. 3] shows this stop 6 even more precisely. In the illustrated embodiment, the stop 6 comprises a plane substantially perpendicular to the first sliding direction D1.

[0028] The latch 5 is capable of selectively engaging the stop 6, in the closed configuration of the lock 1 or of disengaging the stop 6, in the open configuration of the lock 1.

[0029] For this, according to one embodiment, the latch 5 is movable in translation in a second direction D2, intersecting the first direction DL. This translation allows it to pass, alternately, from an open position where it releases the stop 6, as illustrated in [Fig.l], 3, where the retracted latch 5 is not visible, or in [Fig.9], to a closed position where it engages the stop 6 and opposes a relative movement of the bolt 4 / latch 5 in the first direction Dl, as illustrated in [Fig.2] or 8.

[0030] This translation is carried out by any means, between a strike plate support 12, fixed on the frame 2 or the opening 3 and the strike plate 5, itself, movable relative to the strike plate support 12.

[0031] [Fig.4] further illustrates the lock 1 in the open position, striker 5 retracted and bolt 4 free, while [Fig.5] illustrates the lock 1 in the closed position, striker 5 engaging the bolt 4 and its stop 6 and immobilizing it.

[0032] According to another characteristic, the part 2, 3, among the frame 2 and the opening 3, carrying the strike plate 5, i.e. the part 2, 3 not carrying the bolt 4, but on the contrary located opposite said bolt 4 when the door is closed, comprises a stop face 7. This stop face 7 is shaped so as to form a stop in the first direction D1. This stop face 7 is arranged opposite the bolt 4, so that the stop face 7 is encountered by the bolt 4, when the door is closed. According to the illustrated embodiment, the stop face is formed in the support 12.

[0033] According to another characteristic, in order to avoid too violent a percussion between bolt 4 and stop surface 7 when closing the door, the bolt 4 is mounted to slide in the first direction D1, relative to the part 2, 3 supporting the bolt 4. This sliding movement is advantageously accompanied by a damping means 8, in order to dampen any possible percussion. The damping means 8 may be a return means, such as a spring, and / or a shock absorber. A possible embodiment is illustrated in figures 1-2, particularly visible in detail figure 3.

[0034] It should be noted that the combination of a stop face 7 on one side and a sliding and damped bolt 4 on the other side, advantageously makes it possible to eliminate any damaging effect of a percussion between bolt 4 and striker 5, but also allows immobilization of the opening 3 in the correct position and thus good positioning of the bolt 4 relative to the striker 5. This positioning is repeatable, whatever the closing force of the door. This precise positioning is such that it places the bolt 4 in the precise position where the striker 5 can be closed so as to engage the bolt 4 and close the lock 1.

[0035] According to another characteristic, the second direction D2, namely the direction in which the strike plate 5 translates, is advantageously parallel to the frame 2, in the part of the frame 2 which accommodates the bolt 4 or the strike plate 5, namely the part where the lock 1 is arranged.

[0036] Advantageously, the second direction D2 is perpendicular to the first direction DL.

[0037] According to another characteristic, the open position of the latch 5 is preferably higher than the closed position of the latch 5. This characteristic excludes the only case where the second direction D2 is horizontal and where, in fact, the two open and closed positions of the latch 5 are at the same height. In in all other cases, this feature is advantageous in that it allows gravity to be used, applied to the movable latch 5, to assist the transition from the open position to the closed position, the latter transition being preferred.

[0038] As illustrated in Figures 4, 5, the second direction D2 is vertical. Also, the assistance of gravity is maximum to move from the open position, at the top, to the closed position, at the bottom.

[0039] According to another characteristic, the bolt 4 forms a hook, one of the faces of which is the stop 6. This hook advantageously opens facing a direction perpendicular to the first direction D1. In a complementary manner, the striker 5 forms a complementary hook, namely a hook opening towards the same direction perpendicular to the first direction D1, but in the opposite direction. Thus, the hook of the bolt 4 can hook the complementary hook of the striker 5. The shapes of the two complementary hooks are inscribed in a plane perpendicular to the second direction D2, thus allowing a disengagement or engagement movement without hooking, by a relative translation in the second direction D2. Figures 1-5, 8, 9 show a hook 6 opening outwards, while [Fig. 10] shows a hook 6 opening inwards.In fact, the hook can be mounted in either direction, which makes the lock according to the present invention compatible with all sliding door systems and therefore allows it to adapt to the height of the sealing gasket which varies according to the door system used.

[0040] According to another characteristic, the latch 5 also advantageously comprises a locking means 9. This locking means 9 is advantageously capable of locking the latch 5, either in the closed position or in the open position, relative to the latch support 12. This locking means 9 is preferably supplemented by a return means 10. This return means 10 is advantageously arranged so as to actuate by default the locking means 9 so as to lock it, in one of the open or closed positions. Thus, the default position of the locking means 9 is a locked position, in the closed or open position. Unlocking is only obtained when an operator maneuvers the locking means 9 so as to unlock it, by opposing the return means 10.

[0041] As more particularly illustrated in Figures 6, 7, according to one embodiment, the locking means 9 comprises at least one tenon 14, integral with the striker 5, capable of moving in a direction secant to the second direction D2 and of selectively engaging, during locking, or releasing, during unlocking, a hole 13, integral with the striker support 12. Said at least one tenon 14 comprises rectilinear teeth capable of engaging a rotary pinion 15. Thus, a rotation in one direction, clockwise in the figure, unlocks by removing said at least one tenon 14 from the hole 13, while that a rotation in the other direction, locks by introducing said at least one tenon 14 into the hole 13.

[0042] In the device illustrated in Figures 6, 7, the hidden return means is a rotary spring, tending to rotate the pinion 15 preferentially in an anticlockwise direction. Alternatively, the return means may be a linear compression spring, aligned with said at least one tenon, which it tends to push towards the hole 13.

[0043] According to another characteristic, the locking means 9 can be actuated by a rotating handle and / or key 11.

[0044] As illustrated in Figures 4-7, said handle and / or key 11 is integral in rotation with the pinion 15.

[0045] The invention also relates to a door comprising a fixed frame 2, an opening 3 sliding relative to the frame 2, and such a lock 1, according to any one of the embodiments previously described, the bolt 4 of which is secured to one of the frame 2 or the opening 3 and the striker 5 is secured to the other of the frame 2 or the opening 3.

[0046] The invention has been illustrated and described in detail in the drawings and the preceding description. This should be considered as illustrative and given by way of example and not as limiting the invention to this description alone. Numerous alternative embodiments are possible. List of reference signs

[0047] 1: lock, 2: sleeping, 3: opening, 4: bolt, 5: latch, 6: stop, 7: stop face, 8: damping means, 9: locking means, 10: means of recall, 11: handle / key, 12: strike plate support, 13: hole, 14: tenon, 15: gable, DI: sliding direction, D2: translation direction of the latch.

Claims

Claims

1. Lock (1), for a door comprising a fixed frame (2) and a sliding opening (3), relative to the frame, in a first direction (Dl), comprising a bolt (4) secured to one of the frame (2) or the opening (3) and a striker (5) secured to the other of the frame (2) or the opening (3), characterized in that the bolt (4) comprises a stop (6) in the first direction (Dl) and in that the striker (5) is movable in translation in a second direction (D2), intersecting the first direction (Dl), between an open position where it disengages the stop (6) and a closed position where it engages the stop (6) and opposes a relative movement of the bolt (4) / striker (5) in the first direction (Dl).

2. Device (1) according to claim 1, where the part (2, 3), among the frame (2) and the opening (3), carrying the striker (5), comprises a stop face (7) forming a stop in the first direction (Dl), opposite the bolt (4), and in that the bolt (4) is mounted to slide in the first direction (Dl) with a damping means (8), such as a spring, relative to the part (2, 3), among the frame (2) and the opening (3), carrying the bolt (4).

3. Device (1) according to any one of claims 1 or 2, where the second direction (D2) is parallel to the frame (2).

4. Device (1) according to any one of claims 1 to 3, wherein the open position of the latch (5) is higher than the closed position of the latch (5).

5. Device (1) according to any one of claims 1 to 4, wherein the stop (6) forms a hook opening outwards.

6. Device (1) according to any one of claims 1 to 4, wherein the stop (6) forms a hook opening inwards.

7. Device (1) according to any one of claims 1 to 4, where the stop (6) forms a hook opening towards a direction perpendicular to the first direction (Dl) and the latch (5) forms a complementary hook, namely a hook opening towards the same direction perpendicular to the first direction (Dl), but in the opposite direction.

8. Device (1) according to any one of claims 1 to 5, wherein the latch (5) comprises locking means (9) in the closed position. and / or in the open position, preferably equipped with a return means (10) tending to lock it.

9. Device (1) according to the preceding claim, wherein the locking means (9) is actuated by a handle and / or a key (11).

10. Door comprising a fixed frame (2) and a sliding opening (3), relative to the frame, characterized in that it also comprises a lock (1) according to any one of the preceding claims, the bolt (4) of which is integral with one of the frame (2) or the opening (3) and the strike plate (5) is integral with the other of the frame (2) or the opening (3).

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