FR2700577A1 - Sliding lock with means for the slider to automatically reach the open and closed positions. - Google Patents

Abstract

The present invention relates to locks comprising a body 8 in the form of a slide 9, a slide 11, and a hook 12 constituting the bolt. The lock is characterized by the fact that it comprises a spring rod 20 integral, by one of its ends 21, of the slide 11 and comprising, at its other end 22, a friction means 23, and a ramp 25 comprising a inclined part between a top 26 and a base 32, the ramp being located on the body 8 and being able to cooperate with the friction means 23 so that, when the slide 11 is in an intermediate position between the open position 11-1 and the closed position 11-2, the friction means is located on the top 26 of the ramp and strips the spring rod 20 and that, when the slide reaches the end of its travel, the friction means travels the part inclined from this ramp and brings the spring rod into a relaxed position.

Description

LOCK FOR SLIDING WITH MEANS FOR PERMITTING

  AT THE SLIDER TO REACH AUTOMATICALLY

  OPENING AND CLOSING POSITIONS

  The present invention relates to locks, more particularly to

  locks for doors and windows that slide on rails like, no-

  in some houses and apartment buildings, and that

technicians denominate sliding.

  To obtain the closure of these sliders locks of a particular type have been made, consisting essentially of a body in the form of a recessed slide, a slider mounted in translation in the recess of the slider, and a hook mounted integral with the slider and emerging from the body by a slit made in the body, this hook constituting the bolt

  This lock is then embedded in a sliding

  A groove is provided in this post so that users can access the slider and operate it by sliding it into the lock body. The lock is further arranged and installed in the slider jamb so that the bolt or hook can cooperate

  with a striker that is mounted integral with the door frame or window.

  To close a slide with such a lock, simply push the slide on its rail until the bolt enters the door.

  keeper, then to maneuver the slider so that the hook comes to posi-20 tion 20 behind a projecting portion of this striker.

  To open the slide simply move the slide in the opposite direction to release the hook of the protruding part of the striker, then slide the door or window on the rails to get its opening. The locks schematically described above make it possible to obtain a very good closure of the slides for which they have been developed, but provided that the slide has been maneuvered so that

  the hook occupies perfectly the position it must have behind the protruding portion of the striker Similarly, the opening of the slider can be effected easily only if the hook has been completely clear of this portion protruding.

  So that the users of this type of closure can be assured of having made a complete maneuver of the slider, it has been developed integrated systems locks that surely allow to bring the slider in two extreme positions, it that is to say at the end of

  race for the closing and opening of the sliding.

  Systems of this type that currently exist work well,

  but are very complicated and greatly increase the price of

  comes from the locks to which they are integrated.

  The present invention therefore aims to achieve a lock comprising

  both a system to help the slider to reach for sure its end position io extreme, whose structure is simple and easy to implement and which does not involve assembly by specialists, this system leading only to 'a small increase in the cost price of the lock by

  compared to those that do not.

  More specifically, the present invention relates to a lock comprising a

  carrying a body in the form of a recessed slide, a slide mounted in

  translation into the hollow of said slide and able to take two posi-

  extremes called "open position" and "closed position", and a hook mounted integral with said slider and emerging from said body by

  a slit made in this body, this hook constituting the bolt of the ser-

  Rure adapted to cooperate with a projecting portion of a striker, characterized in that it further comprises at least: a spring rod secured by one of its ends, said slider and having, at its other end, a means of friction, and a first ramp having an inclined portion between a vertex and a base, said ramp being located on said body and being adapted to cooperate with the friction means so that, when said

  slide is in an intermediate position between said

  opening and closing position, said friction means is

  on the top of said first ramp and strip said rod spring and

  that when said slide reaches the end of the stroke, said friction means

  ment traverses the inclined part of this ramp and brings the said rod

go out in a relaxed position.

  Other features and advantages of the present invention appear

  in the following description given in relation to the annual drawing.

  X is for illustrative but not limiting in which: The single Figure shows an embodiment of a lock according to the invention.

  The closure device 1 illustrated in the single figure is more particularly

  intended to be associated, on the one hand, with a schematic

  2, that is to say for example a window or a door which slides on rails, to obtain the opening or closing of this

  window or the like, and secondly to a doorframe 3.

  This device comprises a lock 4 arranged, in the example illustrated, on the amount of the slider 2 and a striker 5 disposed on the other element, that is to say the doorframe 3, this striker comprising in known manner a

  open housing 6, delimited and bordered by at least one projecting portion 7.

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

  disposed a slide It mounted in translation in the hollow 10 of the slide

  9 and able to take two extreme positions, an open position shown in dot-dots 11-1 and a closed position shown

  in broken lines 11-2 A hook 12 is mounted integral with the slide

  bucket 11 and emerges from the body 8 by a slot 13 made in this body This hook 12 constitutes the bolt of the lock which is adapted to cooperate with the

  striker 5 and more particularly with the protruding part 7 which borders the

6.

  According to a feature of the invention, the lock 4 further comprises

  at least one spring rod 20 having advantageously a transverse elasticity

  dirty giving it a certain value of elastic boom, but a longitudinal stiffness This spring rod is secured, by one of its ends 21, the slider 11, and has at its other end 22 a means of

  friction 23, for example a rounded portion 24 in offset of the rod, ve-

  to cooperate, as demonstrated below, with a sliding surface.

  Indeed, the lock 4 further comprises at least a first ramp 25 having an inclined portion between a vertex 26 and a base 32 This ramp is located on the body 8 and is adapted to cooperate with the friction means 23 so that when the slider is in an intermediate position such as that shown in solid lines in the Figure, ie between the open position 11-1 and the close position 11-2 this friction means 23 is on the top 26 of the ramp 25 and submits the spring rod 20 to an elastic deformation for the

  On the other hand, when this slider 11 arrives towards one of its two possible end positions, for example the closed position 11-2, the friction means 23 traverses the inclined part of the ramp 25 and causes the rod to spring back into position. his relaxed position of rest.

  According to a possible and advantageous embodiment, the spring rod 20 is mounted on the slider 11 in a direction that is substantially parallel

  to the sliding direction of the slider in the body 8.

  The lock described above allows the slider to reach for sure

  end position, for example so that the hook co-

  father ideally with the keeper 5 to close the sliding, that is to say that it comes to be placed exactly and completely behind the part in

projection 7.

  To describe the operation of this lock, it is first considered that the slider is in an intermediate position as that which is shown in solid lines in the Figure and the slider must be closed The slider 2 is thus brought against the door jamb 3 so that the hook 12 enters the housing 6, then the slider 11 is slid into the body 8 so as to bring the spout 30

  hook 12 behind the protruding part 7.

  During this maneuver, the friction means 23 is first located on the top 26 of the ramp 25 and the spring rod 20 is banded at the maximum and is maintained in this situation of elastic deformation until the arrival of the means of friction at the high point of the inclined part

  As soon as the friction means has passed this point, the

  what is being exerted on him are essentially the following: a force of

  reaction exerted by the surface 31 of the first ramp 25 and sensitive

  perpendicular to this surface and a restoring force, substantially

  horizontal, due to the elastic deformation of the spring rod.

  Naked in mechanics, one can decompose the restoring force into two forces, for example one perpendicular to the surface 31 and the other parallel to this surface The component perpendicular to the surface 31 opposes the force

  reaction and the friction means is therefore subject only to the

  parallel to the first ramp 25 which automatically leads to the base 32 of this first ramp, because the slope of the inclined portion of the first ramp 25 gives this component an orientation in the direction

  ascending (in relation to the orientation of the figure).

  This force is applied indirectly to the slider by being transmitted to it

  by the longitudinal stiffness of the stem, and automatically pushes the neck

  slider up to its extreme closed position reached when the friction means has arrived at the base 32 of the inclined portion of the ramp 25, that is to say when the spring rod is relaxed The hook 12 then automatically reaches, behind the projecting portion 7 of the striker, the location provided for a perfect closure of the slider and this,

  even if the user had not taken care to push the slide to the end of its race.

  So we see that the means described above bring to this lock

  a security to automatically reach its closed position par-

  made. It has been described above that the means providing the slider a help to automatically reach its end position 11-2 for closing the slider, but it is obvious that the lock can also

  include a limit switch on the slide to bring it automatically

  only in its open position 11-1.

  The lock then comprises a second ramp 40 comprising an inclined portion between a crown and a base 42.

  se, the top of this second ramp 40 coincides with the top 26 of the first ramp 25 and its inclined portion is symmetrical with the inclined portion of the first ramp 25 relative to the direction perpendicular-10 re to that of the slide of the slide in the body 8 In addition, for

  that the inclined parts of the two ramps cooperate with the means of friction.

  23 to bring to the slider help end stroke and bring it, in its closed position, or in its open position, it is necessary that the distance between the bases 32 and 42 of these two parts

  inclined to be substantially equal to the distance to be traveled by the slide

  bucket when it moves from its closed position 11-2 to its open position.

11-1.

  The operation of the lock at the end of the stroke of the slide to automatically bring it to its perfect open position is the

  same as that described above, with the difference that the slope of the inclined part of the second ramp 40 is the reverse of that of the

  inclined portion of the ramp 25 and gives the force which is automatically exerted on the slide a downward orientation. In a preferred embodiment, the two ramps 25 and 40

  can be directly made in the wall 43 of the body 8, for example by deformation and cutting according to the technique called "punctured".

  In the example described above, only one spring rod associated with a pair of ramps has been described. However, it is quite obvious that, in order to increase the intensity of the force exerted automatically on the slide in end of stroke, both in one direction than in the other, it is possible to mount in parallel several springs springs identical to that

  referenced 20 and provide, for example in the wall of the body 8, as many pairs of ramps identical to the torque 25-40 As an example, the single Figure comprises two spring rods and two pairs of symmetrical ramps.

Claims (4)

  1 lock comprising a body (8) in the form of a slide (9) recessed   (10), a slide (11) mounted in translation in the recess of said slide   and able to take two extreme positions called "open   re "(11-1) and" closing position "(11-2), and a hook (12) mounted securely   of said slider and emerging from said body by a slot (13) made in this body, this hook constituting the bolt of the lock adapted to cooperate with a projecting portion (7) of a striker (5), characterized in that it further comprises at least: a spring rod (20) integral, by one of its ends (21), said slider (11) and having, at its other end (22), a friction means (23), and a first ramp (25) having an inclined portion between a vertex (26) and a base (32), said first ramp being located   on said body (8) and being adapted to cooperate with the friction means (23) so that when said slider (11) is in an intermediate position between said open position (11-1) and said position of iron-   meture (11-2), said friction means is on the top (26) of said first ramp and strips said spring rod (20) and that when said slide reaches the end of stroke, said friction means runs through the portion inclined this ramp and causes said rod spring in relaxed position.   2 lock according to claim 1, characterized in that said spring rod (20) is mounted in a direction substantially parallel to the   sliding direction of said slider (11). A lock according to Claim 2, characterized in that it further comprises a second ramp (40) substantially symmetrical with said first   first ramp (25) relative to a direction perpendicular to that of the sliding of said slider, the distance separating the low points (32, 42) of these two first and second ramps being substantially equal to the che-30 min of sliding of said slider when it moves from the closed position to the open position.   4 lock according to one of claims 1 to 3, characterized in that the two ramps are formed in the wall (43) of said body (8).   Lock according to Claim 4, characterized in that the two   ramps are constituted by a "punctured" made with the wall of said body.   6 lock according to one of claims 1 to 5, characterized in that said spring rod (20) has a transverse elasticity and stiffness longitudinal.