EP0611865A1 - Closing device for a bolt with means for avoiding faulty handling - Google Patents

Abstract

The present invention relates, among devices for closing windows of the "sliding pane" type with a jamb, those which include a safety system for guarding against incorrect operation. The device according to the invention is characterised essentially by the fact that it includes a lock 4 located on the sliding pane and a latch 5 located on the jamb and including an open housing 6 delimited by a projecting part 7, the lock including a body 8 in the form of a slideway 9 like a hollow 10, a slide 11 mounted so that it can move translationally inside the slideway, a hook 12 mounted integral with the slide and emerging from the body through a slot 13 made in this body, a rod 20 mounted in the body 8 and capable of assuming a position of rest 21 and a working position 22, elastic means for tensioning so as to hold and return the rod to its position of rest, and means 27 for causing the rod to pass from its position of rest into its working position when the lock 4 and the catch 5 come close to one another, the slide 11 including a limit stop 24 capable of coming into contact with a first end 25 of the rod when it is in its position of rest 21 and a notch 26 close to the limit stop capable of receiving the first end of the rod when it is in the working position 22. <IMAGE>

Description

The present invention relates to closing devices which are found more particularly on doors or windows which slide on rails, for example the patio doors of certain residential houses which technicians call sliding doors.

To obtain the closure of a sliding door, devices of a particular type have been produced. These devices include a lock and a strike. The lock essentially comprises a body in the form of a hollow slide, a slide mounted in translation in the hollow of the slide, a hook mounted integral with the slide and emerging from the body by a slot made in the body, this hook constituting the bolt of the lock. This lock is thus embedded in a sliding upright, a groove being formed in the upright so that users can access the slider and maneuver it by sliding it in the lock body. The lock is arranged and installed in the amount of the slide so that the bolt or hook can cooperate with the keeper which, for its part, is mounted integral with the jamb.

To close a slide comprising such a lock, it suffices to slide it until the bolt enters the keeper and then to maneuver the slide so that the hook comes to be positioned behind a projecting part of this keeper.

To open a slide, simply slide the slide in the opposite direction to release the hook from the protruding part of the keeper, then slide the slide on its rails to obtain its opening.

Such a lock is entirely satisfactory in terms of operation, but can have the disadvantage of having a relatively short life.

Indeed, it sometimes happens that, when a sliding door is open, the hook which has been released from the projecting part of the keeper for opening, returns to the position it occupies in the keeper for closing the sliding door , and that it thus emerges from the sliding frame at the same level as the projecting part of the keeper. If, for whatever reason, the sliding is pushed strongly enough to its closed position while the slide has not been operated to clear the hook, the latter abuts violently against the strike. This shock causes almost every time, especially if the mass of the slide is relatively large, the destruction of either the keeper or the hook, or even of the entire sliding closure device.

To overcome this drawback, so-called "anti-misuse" means have been developed, but these means have fairly complicated structures which make the cost price of this type of closure relatively high.

The aim of the present invention is therefore to develop a device for closing a sliding door, which comprises means avoiding false maneuvers like that described above and which has a much simpler structure than that of devices of the same type of prior art and therefore a lower cost price.

• une tige montée en coopération dans ledit corps et apte à prendre au moins deux positions, une position de repos et une position de travail,
• des moyens élastiques pour tendre à maintenir et à ramener ladite tige dans ladite position de repos, et
• des moyens pour commander le passage de ladite tige de sa position de repos à sa position de travail à l'encontre desdits moyens élastiques quand ladite serrure et ladite gâche arrivent au voisinage l'une de l'autre,

et en ce que ledit coulisseau comporte une butée apte à venir au contact d'une première extrémité de ladite tige quand elle est dans sa position de repos et une encoche située à côté de ladite butée, ladite encoche étant apte à recevoir ladite première extrémité de ladite tige quand elle est en position de travail.More specifically, the subject of the present invention is a device for closing a slide on a doorframe, said device comprising a lock disposed on one of the two elements "sliding" and "doorframe" and a keeper arranged on the other element. , said keeper comprising an open housing delimited by a projecting part bordering said housing and said lock comprising a hollow slide-shaped body, a slide mounted in translation in the hollow of said slide, a hook mounted integral with said slide and emerging from said slide body by a slot made in this body, this hook constituting the bolt of the lock able to cooperate with said projecting part of said keeper, the device being characterized in that it further comprises:

• a rod mounted in cooperation in said body and able to take at least two positions, a rest position and a working position,
• elastic means for tending to hold and bring said rod back into said rest position, and
• means for controlling the passage of said rod from its rest position to its working position against said elastic means when said lock and said keeper arrive in the vicinity of one another,

and in that said slide comprises a stop capable of coming into contact with a first end of said rod when it is in its rest position and a notch located next to said stop, said notch being able to receive said first end of said rod when it is in the working position.

Other characteristics and advantages of the present invention will appear during the following description given with reference to the drawings annexed by way of illustration but in no way limitative in which:
The single Figure shows an embodiment of a closure device according to the invention comprising means avoiding false operations.

The closing device 1 illustrated in the single figure is more particularly intended to be associated, on the one hand, with a sliding device schematically represented in 2, that is to say for example a window or a door which slides on rails for to obtain its opening or its closing, and on the other hand to a frame 3.

This device comprises a lock 4 arranged, in the example illustrated, on the slide 2 and a keeper 5 arranged on the other element, that is to say the frame 3.

The keeper 5 installed in the frame 3 has an open housing 6, delimited and bordered by at least one projecting part 7.

The lock 4 comprises a body 8 in the form of a recessed slide 9 10, constituted for example by a hollow cylindrical profile.

A slide 11 is mounted in translation in the hollow 10 of the slide 9 and a hook 12, mounted integral with the slide 11, emerges from the body 8 through a slot 13 produced in this body. This hook 12 constitutes the bolt of the lock which is able to cooperate with the keeper 5, and more particularly with the projecting part 7 which borders the housing 6.

The device further comprises, according to a characteristic of the invention, a rod 20 or the like mounted in cooperation in the body 8. This rod 20 is capable of assuming at least two positions, a rest position 21 (shown in solid lines on the figure) and a working position 22 (in broken lines in this same figure).

The device comprises, associated with this rod 20, elastic means for tending to maintain it in its rest position, and to bring it back there if, for whatever reason, it had been removed from it.

The device also comprises means 27 for controlling the passage of the rod 20 from its rest position 21 to its working position 22 against the elastic means, when the lock 4 and the keeper 5 arrive in the vicinity one of the other.

The slide 11 has a stop 24 capable of coming into contact with a first end 25 of the rod 20 when the latter is in its rest position 21, and a notch 26 or the like situated next to this stop 24, this notch being able to receive the first end 25 of the rod when the latter is in the working position 22.

In an advantageous and preferred embodiment of the invention, the rod 20 is rotatably mounted around an axis 28 in the hollow 10 of the body 8.

In the embodiment described above, the elastic means for tend to maintain and return the rod 20 in its rest position 21 are advantageously constituted by the fact that the rod 20 is made of a material having a certain impact value. This characteristic makes it possible to produce the rod and the elastic means in a single element. In this case, the second end 29 of the rod opposite the first 25 able to cooperate with the slide, is secured in the hollow 10 of the body 8, for example, with a lug 30. This attachment can be done by fitting in force around the lug 30 of the end 29 formed in a loop. This fixing is given for illustrative purposes only and other fixing means can be used.

In a preferred embodiment, the means 27 for controlling the passage of the rod 20 from its rest position 21 to its working position 22 against the force exerted by the elastic means, are constituted by a finger 31 integral with the rod 20 and capable of coming into contact directly or indirectly with the keeper 5 when the lock 4 and the keeper 5 arrive in the vicinity of one another. In the example illustrated, the free end 32 of the finger 31 abuts against the keeper 5, at a place in this keeper where, on the functional level, its impact is strictly equivalent to an impact against the door frame 3, that is i.e. outside the entrance to the accommodation 6.

The device described above operates as follows:

It is first assumed that the slide is closed, that is to say that the hook 12 is in the position shown in broken lines 40. The spout 41 of the hook is then placed behind and against the projecting part 7 of the keeper 5, preventing the sliding from moving. In this situation, the keeper 5 presses on the end 32 of the finger 31 and the finger pushes the rod 20 which therefore occupies its working position 22, its first end 25 plunging into the notch 26.

When a user wants to open the slide, he operates the slide 11 to slide it down (with reference to the orientation of the figure) to make him take, as well as the hook 12, the position which is shown in lines continuous. When the slide is lowered, under the action of the elasticity of the rod, it returns to its rest position 21 and its first end 25 is placed just above the stop 24.

If, while the slide is open, a person inadvertently wants to reassemble the slide, the stop 24 is opposed by its contact with the end 25 of the rod. Under these conditions, if the slide is closed, that is to say if the lock 4 is brought back towards the keeper 5, the hook 12 is not located opposite the projecting part 7 and does not abut against the strikes at the risk of causing damage to the device as a whole.

This device therefore has security against false maneuvers such as that which has been described in the preamble to this description. This security is obtained by the implementation of a very small number of elements additional to those constituting the devices without security of the prior art. In addition, these elements are completely integrated into the lock and do not modify or complicate the installation of this lock. They therefore do not significantly increase the cost price of the sliding closure devices, but give these devices a longer service life than that of the devices of the prior art.

Claims (4)

Device for closing a slide (2) on a jamb (3), said device comprising a lock (4) arranged on one of the two elements "sliding" and "jamb" and a keeper (5) disposed on the another element, said keeper comprising an open housing (6) delimited by a projecting part (7) bordering said housing and said lock comprising a hollow body (8) in the form of a slide (9) (10), a slide (11 ) mounted in translation in the hollow of said slide, a hook (12) mounted integral with said slide and emerging from said body by a slot (13) produced in this body, this hook constituting the bolt of the lock able to cooperate with said part in projection of said keeper, characterized in that it further comprises: a rod (20) mounted in cooperation in said body (8) and able to assume at least two positions, a rest position (21) and a working position (22), elastic means for tending to hold and bring said rod back into said rest position (21), and - Means (27) for controlling the passage of said rod (20) from its rest position (21) to its working position (22) against said elastic means, when said lock (4) and said strike ( 5) arrive in the vicinity of each other, - Said slide (11) comprising a stop (24) capable of coming into contact with a first end (25) of said rod (20) when the latter is in its rest position (21) and a notch (26) located next to said stop, said notch being able to receive said first end (25) of said rod (20) when the latter is in its working position (22). Device according to Claim 1, characterized in that said rod (20) is rotatably mounted in the hollow (10) of said body (8) by its second end (29). Device according to Claim 2, characterized in that said rod (20) is made of a material having a certain value of resilience. Device according to one of the preceding claims, characterized in that the means (27) for controlling the passage of said rod (20) from its rest position (21) to its working position (22) against said means elastic consist of a finger (31) integral with said rod and capable of coming into contact with said keeper (5) when said lock (4) and said keeper arrive in the vicinity of one another.

Images