FR2824861A1 - LOCKING HARDWARE FOR A SLIDING OPENING, PARTICULARLY - Google Patents

Abstract

The lock consists of a control mechanism (5) with a slider (6) fitted with a bolt holder (9) which has a cavity (10) for the bolt (12). The inner wall (14) of the cavity or corresponding surface (15) of the bolt has a fastening system (16), preferably in the form of a toothed surface which grips a ramp on the adjacent component's surface. The bolt has a series of holes (19) for fixings.

Description

mechanism through the first mechanism.

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  The invention relates to a locking fitting for in particular a sliding opening comprising a control mechanism for a slide provided with a bolt holder having a recess in which is immobilized in tranelation, by means of suitable clamping means, a body of hook bolt or the like. The present invention relates to the field of building hardware and relates, in particular, to fittings of

  locking for sliding doors.

  We know, of course, many fittings of

  sliding door lock corresponding to the description

  above. Thus, such fittings are prowes capable of taking a position in the thickness of the front upright of the sliding sash and very generally comprise an internal plate prewe capable of coming to apply on the internal side on this sash upright, while that at its rear face it is pourwe of a housing accommodating, in a mobile manner, a slide. This comprises, at its face opposite an opening formed in the internal plate, a bowl handle for its control in movement from a locking position in the direction of a position of

unlocking and vice versa.

  A bolt holder is associated with this slider, knowing that the latter has a recess extending substantially in a direction perpendicular to the direction of movement of the slider and into which the body of a hook bolt prew able to cooperate can be introduced. with a keeper arranged in correspondence at the level of the

  jamb of the door, window or other frame.

  In the end, the body of the hook bolt is immobilized in this recess of the bolt holder by means of clamping means, in particular a screw passing through a tapped hole at the level of the bolt holder to come and apply the blade that usually defines the body of the hook bolt against the wall of the recess opposite

said screw.

  We have already imagined solutions to increase the grip of the body of the hook bolt in the recess of this bolt holder so as to avoid its adjustment, either under the effect of a jack

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  applied to said bolt, or a resulting tensile force, by

  example, an attempted break-in.

  Very often, these solutions consist in providing on at least one of the faces of the hook bolt a toothing or striation intended to improve its adhesion to the flat wall corresponding to the recess against which it is applied under the effect of the

tightening printed by the screw.

  In certain cases, there is still provided in this body of the hook bolt a succession of lights describing, there again, a kind of toothing which, in cooperation with the clamping screw, is supposed to increase the attachment of the body of the hook bolt related to

door bolt.

  Furthermore, there are solutions where the body of the hook bolt is not held by tightening at the bolt holder but through an accessible adjustment screw, in particular, from the edge before the sliding leaf. If such an adjusting screw is capable of opposing, at least in part, a relative displacement of the hook bolt relative to the bolt carrier, the fact remains that it leads to a more complex and ,

  obviously, a higher cost price.

  The object of the present invention is to propose a simple solution to this problem of hooking, or even anchoring, a body of latch bolt at the level of a latch carrier, a solution capable of opposing relative displacement. of these parts relative to each other, in particular when it is applied to the hook bolt abnormally high stresses, whether in the context of improper handling of the locking fitting or during a

attempted break-in.

  To this end, the invention relates to a locking fitting for opening, in particular a sliding door, comprising a control mechanism provided with a slide provided with a bolt holder having a recess in which is immobilized in translation, by means of suitable clamping means. , a hook bolt body or the like, characterized in that at least the internal wall of the recess against which the body of the hook bolt is applied, by means of the clamping means, or the corresponding wall of this body

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  of the hook bolt, is provided with hooking means, preferably in the form of a toothing, provided capable of coming to cooperate, coming to bite substantially into the material, with a ramp, equipping, respectively, said corresponding wall of the body of the bolt hook or the inner wall of the recess. According to a feature of the present invention, said ramp is configured in the form of corners in a direction corresponding to

  the axis of the recess in the bolt holder.

  In the end, as part of an inventive step, we imagined reducing the surface on which the tapered ends of the teeth corresponding to said toothing come to bear, on the contrary, increasing, under the effect of pressure clamping means, the penetration of these teeth into the material corresponding to their bearing surface and, thus, improve the attachment of the parts

on top of each other.

  If we imagine that the most sensitive risk provided by this type of locking fitting results from the possibility of extracting the hook bolt from its bolt holder, during an attempted break-in, for example using a crowbar or a similar tool, by configuring, in the form of a wedge, the ramp on which the teeth are intended to grip, such an attempt will only have the effect of increasing this effect of attachment and, therefore, of opposing, with a progressively increasing force, to

  the extraction of said hook bolt relative to its bolt holder.

  Other objects and advantages of the present invention

  will appear during the description which follows relating to

  to an embodiment which is given only by way of example

indicative and not limiting.

  Understanding this description will be facilitated by

  Referring to the attached drawing in which: - Figure 1 is a diagrammatic perspective view and partial of a locking fitting according to the invention, the hook bolt having been removed from its bolt holder;

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  - Figure 2 is a schematic view in partial section of the bolt holder corresponding to this locking fitting; - Figure 3 is a schematic and partial view of the bolt holder with the bolt, according to a first embodiment; - Figure 4 is a w e similar to Figure 3

  corresponding to a second embodiment.

  As visible in the figures of the attached drawing, the present invention relates to a locking fitting 1, more particularly intended for a sliding door, window or similar opening (not shown). In this regard, such a locking fitting 1 is usually integrated in the front upright of this sliding leaf and comprises a locking member, more particularly a hook bolt 2 provided capable of cooperating, in the locking position, with a keeper disposed on the amount

  corresponding to the sleeping frame of this door or window.

  Thus, this locking fitting 1 comprises an internal plate 3 at the rear of which is provided a housing 4 capable of accommodating, at least in part, the mechanism of

  control 5 corresponding to this locking fitting 1.

  In this regard, this control mechanism 5 is provided with a slide 6 provided capable of moving in said housing 4 between a locked position and an unlocked position. For this purpose, this slide 6 comprises, on its side opposite the internal plate 3 and in line with an opening 7 formed in the latter,

  a bowl handle 8 for its displacement control.

  With this slide 6 is associated a bolt holder 9 provided with a recess 10 in which is immobilized in translation, thanks to

  appropriate clamping means 11, the body 12 of the hook bolt 2.

  More particularly and as visible in FIG. 2, the clamping means 11 consist of a clamping screw (not shown) introduced into a tapped hole 13 of the bolt holder 9. This tapped hole 13 communicates with the recess 10 so that after introduction into the latter to the body 12 of the hook bolt 2, the tightening of said screw has the effect of applying this body 12 of the

  hook bolt 2 against the opposite wall 14 of this recess 10.

  In this connection and according to the invention, this internal wall 14 of the recess 10, against which the body 12 of the hook bolt 2 is applied, or even the corresponding wall 15 of the latter, is for us means of attachment 16 , preferably in the form S of a toothing 17, capable of cooperating, coming to bite into the material, with a ramp 18 equipping, conversely, the corresponding wall 15 of the body 12 of the hook bolt 2 or the wall 14,

  opposite the clamping means 11, the recess 1O.

  I1 should be observed that said teeth 17 corresponding to the hooking means 16, can be in the form of striations as visible in Figure 4 or result from the presence in the body 12 of the hook bolt 2 of a plurality of cuts

  parallel to each other like a ladder or rack.

  A combination of these two solutions is also possible.

  1S The ramp 18 which, in the embodiment corresponding to the attached drawing, is located at the wall 14 of the recess, extends axially inside the latter, either in the

  direction of introduction of the body 12 of the hook bolt 2.

  Furthermore, in this direction this ramp 18 is

  configured as a wedge as shown in Figure 3.

  Thus, it may be of progressively increasing thickness in a direction corresponding to that of this direction of introduction of the body 12 of the hook bolt 2 into the bolt holder 9 or in the opposite direction. In the first case, if the additional attachment provided by the teeth 17 on the ramp 18 still tends to increase under the effect of a shock tending to repel the hook bolt 2 in the bolt holder 9, a ramp 18 in inverted wedge shape will, on the contrary, have the effect of opposing a traction having

  for the purpose of extracting this hook bolt 2 from the bolt holder 9.

  If, as explained above, in the embodiment corresponding to the figures of the attached drawing, the ramp 18 is systematically associated with the wall 14 of the recess 10 corresponding to the latch 9, we could quite imagine arranging it at the level of the corresponding wall 15 of the body 12 of the

hook bolt 2.

  As appears in particular in FIG. 1, this body 12 of the hook bolt 2 may also include a series of openings 19 describing, between them, bosses 20 in the form of teeth intended, here again, to improve its attachment relative to to the screw corresponding to the clamping means 11.

  Finally, as appears from the above description,

  a locking fitting, according to the invention, not only provides a higher degree of security, but, moreover, its reliability over time is increased. In particular, in the absence of a suitable anti-false maneuver, it is possible, following a handling error, to bring the locking fitting into its locked position while the sliding leaf is open. Under these conditions, the hook bolt necessarily comes into contact with the keeper on the frame when the opening of this opening occurs. If, in the context of the state of the art, such a shock often resulted in the displacement of the hook bolt, the present invention has successfully overcome this difficulty. Indeed, any attempt to move the hook bolt relative to the bolt holder only has the consequence, in the context of a design according to the invention, that more interpenetration

  significant attachment means 16 on the ramp 18.

  Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that there can be made various modifications to the forms, materials and combinations of these. various elements without

  for this to move away from the framework and the spirit of the invention.

Claims (4)

claims   1. Locking fitting for opening, in particular sliding, comprising a control mechanism (5) provided with a slide (6) provided with a bolt holder (9) having a recess (10) in which is immobilized in tranalation, thanks to suitable clamping means (11), a body (12) of a hook bolt (2) or the like, characterized in that at least the internal wall (14) of the recess (10) against which is applied the body (12) of the hook bolt (2), thanks to the clamping means (11) or the corresponding wall (15) of this body (12) of said hook pin (2), is provided with hooking means (16), preferably in the form of a toothing (17), provided capable of coming to cooperate, coming to bite substantially into the material, with a ramp (18) equipping, respectively, said corresponding wall (15) of the body (12) of   latch hook (2) or the internal wall (14) of the recess (10).   2. Locking fitting according to claim 1, characterized in that the ramp (18) extends in a direction corresponding to the direction of introduction of the body (12) of the hook pin (2) in the recess (10).   3. Lock fitting according to any one of   previous claims, characterized in that the ramp   (18) is configured in the form of wedges and has a progressively increasing thickness in a direction corresponding to that of the direction of introduction of the body (12) of the hook bolt (2) into   the recess (10) of the pin holder (9) or in the opposite direction.   4. Lock fitting according to any one of   previous claims, characterized in that the body   (12) of the hook bolt (2) comprises a series of openings (19) describing, between them, bosses (20) in the form of teeth, with these openings (19) being provided capable of cooperating the means of