FR2722825A1 - ANTI-FALSE MANEUVERING DEVICE AND LOCKING FITTING PROVIDED WITH SUCH A DEVICE - Google Patents

Abstract

The mechanism consists of a housing (14) containing a moving actuator for a lock, and a stop (1) which prevents incorrect operation of the lock by immobilising the lock in the unlocked position. This comprises a wedge (22) which is released by direct or indirect movement of the door/window frame. There is a support (24) for the wedge, and connectors (25) which co-operate with matching connecting members (26) fixed to the rear wall of the lock housing. The wall has an aperture in it to enable the wedge to co-operate with the moving actuator.

Description

The invention relates to an anti-false operation device intended for a

  locking fitting, in particular for a sliding door, window or similar opening, comprising a housing inside which is capable of moving at least one movable element, such as a slide, actuating at least one locking member, such as '' a hook bolt, this anti-false operation device comprising a blocking member subjected to elastic return means in the blocking position and capable of being brought into the unlocking position against the action of the elastic return means under the direct or indirect impulse of the sleeping frame of the door, window or the like. The invention also relates to a locking fitting, in particular for a sliding leaf, equipped

  of such an anti-misuse device.

  The present invention will find its application in the field of building hardware and, more particularly, in the context of locking fittings, in particular applicable to sliding doors. In the field of locking fittings for a sliding leaf, a number of articulation fittings are already known, comprising a housing extending behind a fixing plate and intended to be fitted into an opening. fitted at the internal face of the front upright corresponding to this sliding leaf. Inside this box is able to move, vertically, a slide under the impulse of a control handle precisely accessible at the level of said fixing plate. In reality, this slide actuates a hook bolt having a protrusion at the edge before opening it so as to be able to cooperate with a

  strike located in concordance on the amount of the sleeping frame.

  It is obvious, in such a design, that the hook bolt can be manipulated via the control handle, whether the sliding leaf is open or not. In particular, the hook bolt can be brought back into its locked position by inattention, while the sliding leaf is open, so that when closing it. this hook bolt hits the strike

  damaging this locking fitting.

  This result is also obtained in the case where a child acts directly on the hook bolt. In fact, to avoid the command to unlock the fitting from outside the house by direct action on the hook bolt, the fitting can be fitted with an appropriate locking device. More specifically, the control handle and therefore the slide on which the latter acts have a preliminary idle stroke relative to their action on the hook bolt. During this empty stroke, during the locking command, control means are actuated to act on the

  locking device and cause it to be erased.

  In reality, thus preventing the displacement of the hook bolt by a direct action on the latter. the risks of a false operation consisting in actuating the control handle in order to bring the hook bolt into a locked position are not resolved.

  the opening is not closed on the sleeping frame.

  This problem has. in definitive. been regulated by the invention as described in document FR-A- '598 171. More specifically, the locking fitting is. here, equipped with a sensor which is substantially projecting from the edge before opening it so as to be able to cooperate with

  the amount of the sleeping frame when closing the sliding sash.

  This action of the amount of the sleeping frame on the probe has the function of unlocking a locking device with elastic return even

  lock the hook latch in its unlocked position.

  Consequently, it is only when the probe meets the amount of the sleeping frame and. therefore, that the sliding leaf is closed, that it is possible to actuate the hook bolt via the

control handle.

  If this solution, described in this document FR-A-2,598,171, advantageously solves the problem. it is nonetheless linked to a

  certain complexity of the mechanism that makes up the locking fitting.

  This complexity results in a long manufacturing and assembly time and, consequently, in a high cost price of this type.

  of locking fitting for sliding sash.

  We know. also. through document FR-A-2 603 931, another locking device with elastic return capable of immobilizing the hook bolt in its unlocked position as long as the sliding leaf is not closed on the frame. This locking device is in the form of a separate assembly which, thanks to appropriate positioning and holding means, is able to be fixed on the edge before the opening. More precisely, this edge before the opening is formed. often, by a sectional section in "U" 'open in the direction of the amount of the frame and inside which extends the hook bolt of the locking fitting. Thus, when closing the sliding leaf, the keeper, integral with the frame, is housed between the two parallel walls of the section profile in

  "'" of the sash so that the hook bolt can engage it.

  As for the locking device, it comprises a support held tight in this section of "U" section of the sliding leaf. On this support is pivotally mounted a locking lever, subjected to elastic return means in the locking position and which is capable of preventing any displacement of the hook bolt as long as the opening

sliding door is ajar.

  The drawback associated with such a locking device is that it requires a specific configuration of the edge before the opening in order to be able to take a position there. In addition, difficulties arise when the strike. disposed on the frame, is embedded in the latter and not in the projecting position as shown in the drawings of this previous document. In fact, under these conditions, this

  condemnation impedes the closing of the sliding leaf.

  In all cases. the characteristics of this locking device, in particular its connection means on the opening, are dependent on the configuration of the latter, so that a

  standardization in the field is hardly possible.

  The present invention is intended to even respond to the various problems set out above, this through an anti-false operation device which meets all the requirements which have just been recalled, namely: a design very simple, the possibility of positioning it on the housing of the locking fitting equipping the sliding leaf and, also, the possibility of equipping it

  already-existing locking fittings.

  For this purpose. the invention relates to an anti-false operation device intended for a locking fitting, in particular for a sliding door, window or similar opening, comprising a housing inside of which is able to move at least one movable element, such that a slide, actuating at least one locking member, such as a hook bolt, this anti-false operation device comprising a locking member subjected to elastic return means in the locking position and able to be brought into the unlocking position against the action of the elastic return means under the direct or indirect impulse of the dormant frame of the door, window or the like, characterized in that it comprises a support structure provided with connection means capable of cooperate with complementary connecting means integral with the housing of the locking fitting, the locking member being shaped to be able to block said movable element disposed inside interior of the housing and through which the body

locking is activated.

  The invention relates. in addition, a locking fitting, in particular for a sliding door, window or similar opening, comprising a housing inside which is able to move at least one movable element, such as a slide, actuating at least one locking, such as a hook bolt, this locking fitting further comprising. an anti-false operation device even able to immobilize the locking member in the unlocked position and comprising a locking member subjected to elastic return means in the locking position and capable of being brought into the unlocking position, against the action of the elastic return means, under the direct or indirect impulse of the sleeping frame of the door, window or the like. characterized in that the anti-tampering device comprises a support structure provided with the blocking member, as well as connecting means capable of cooperating with complementary connecting means integral with the rear wall of the housing, this wall rear comprising, in addition. an opening allowing the organ

  blocking to cooperate with the movable element.

  The advantages arising from the present invention are, of course, the possibility of having locking fittings, in particular. for a sliding door of a simplified design without being deprived, however, of certain safety devices preventing damage to this locking fitting following an operation

executed in error.

  Other objects and advantages of the present invention will become apparent from

  course of the description which follows relating to a mode of

  realization which is only given as an indicative and non-limiting example.

  The understanding of this description will be facilitated by referring

  in the accompanying drawings in which: FIG. 1 is a diagrammatic view of a locking fitting equipping a sliding leaf and capable of receiving an anti-false operation device according to the invention; Figure 2 is a schematic view of the rear face of the housing of the locking fitting at which is mounted the anti-false operation device according to the invention; Figure 3 is a schematic view in partial longitudinal section of the locking fitting as shown in Figure 2; Figure 4 is a view similar to Figure 2 illustrating the arrangement of the locking member when it is brought into the unlocking position under the impulse of the frame to release the action on the hook bolt of the fitting locking; FIG. 5 illustrates the dorsal face of the anti-false operation device according to the invention; Figure 6 is a left view of Figure 5 Figure 7 is a view similar to Figure 5, the locking member

  being there. however, represents in its unlocked position.

  As shown in Figures 2 to 7 of the accompanying drawings, the present invention relates to an anti-false operation device 1 for a locking fitting 2, in particular intended for a sliding leaf 3 of a door, window or the like, shown diagrammatically in FIG. 1. More particularly, the locking fitting 2 comprises at least one locking member, in this case, a hook bolt 4 which, generally. protrudes from the edge of the front upright 6 of the sliding leaf 3 so as to be able to cooperate with a keeper 7 which is disposed on the upright

correspondent 8 of the frame 9.

  In fact, within the framework of the embodiment more particularly represented in the drawings, the hook bolt 4 is operated by means of a control handle 10 more particularly accessible at the level of the internal face 11 of this front upright 6 of the sliding leaf 3 in which the fitting of the

lock 2.

  In FIGS. 2 to 4, there is a further distinction between the configuration of this locking fitting 2 which comprises, precisely, an internal fixing plate 12 which is applied on this internal face II of the front upright 6 of the sliding leaf 3. It has, in particular, an opening 13 giving access to said control handle 10. In reality, the latter is able to move vertically inside a housing 14 fitted to the rear of the plate. internal fixing 12 accommodating, in addition, a movable member such as a slide 15 playing,

  here, the role, also, of a bolt holder 15.

  So. for controlling the locking or unlocking of the door, window or the like. the user intervenes on the control handle 10 by communicating to the latter a vertical translation which is reflected, by the slide 15 on the hook bolt 4. In this regard, said control handle 10 can act on a slide having a stroke unladen compared to its intervention on the hook bolt 4, this so as to allow the control of a locking device able to immobilize this hook bolt, in particular, in its locking position. Ultimately, this locking device has the function of preventing a direct action on this hook bolt 4 which, without it, would allow a sharp end, using a tool

  commonplace. to easily open the sliding door 3.

  The housing 14 is formed. according to the embodiment shown, the internal fixing plate 12 and two parallel wings 16, 17 extending perpendicularly to the rear of this internal fixing plate 12. In addition, in order to facilitate the mounting of the sliding parts inside this housing 14, these parallel wings 16, 17 comprise, at their rear vertical edge 18, a return 19, 20 oriented in the direction of the vertical median plane 21 of this locking fitting 2. It is obvious. however, that this housing 14 could,

  also, be completely closed in its rear part.

  As for the anti-false maneuver device 1, it comprises a locking member 22 subjected to elastic return means 23 making it possible to return systematically to the locking position, configuration in which this locking member 22 is designed so that it can cooperate with a movable member, such as a slide 15, in order to immobilize it and prevent its action on the locking member

that constitutes the hook bolt 4.

  This anti-false maneuver device 1 also includes a support structure 24 equipped with said blocking member 22 and provided with connection means 25 capable of cooperating with complementary connection means 26, in particular associated with the housing 14 of the fitting. of

lock 2.

  Preferably. these complementary connecting means 26 equip the locking fitting 2, at the rear wall 27 of said housing 14 so that by positioning, on the latter, said support structure 24, the locking member 22 cooperates with the movable element 15 through an opening present at this wall

rear 27.

  Thus, according to the embodiment shown in the different figures. this movable element and, more particularly, the slide or bolt carrier 15. comprises on its dorsal face 29, oriented in the direction of the rear wall 27 of the housing 14. a lug 30 on either side of which, in the direction of movement communicated to the mobile element 15, is able to position a locking pin 31 fitted to the blocking member 22 so as to immobilize in a given direction of movement said mobile element 15. In the present case, one seek, through this,

  at estate the latch has hook 4 in its unlocked position.

  As already specified, lug 30 is accessible to the locking member 22 through an opening in the rear wall 27 of the housing 14. In fact. this rear wall 27 is materialized, in this case, only by the returns 19, 20 fitted to the rear vertical edge 18 of the parallel wings 16, 17. As for the locking member 22, in this bolt locking position a hook 4 in the unlocked position, the latter has its longitudinal axis parallel to the direction of movement of the movable element 15, ie parallel to the longitudinal axis of the housing 14 of the locking fitting 2. Unlike. in its unlocked position, it is pushed back so as to obtain the release of its locking pin 31, laterally, relative to the pin 30 in order to allow the passage of the latter and therefore. allow the hook bolt 4 to be brought back into its

  locking position under the action of the movable member 15.

  More precisely. the erasure of this locking member 22 is obtained under the impulse of a feeler 32 acting against the action of the elastic return means 23. the feeler 32 being, itself, pushed directly or indirectly by the frame 9 at time

close the sliding door 3.

  So. this feeler 32 is disposed substantially horizontally and, consequently, parallel to the sliding direction of the sliding opening 3. Furthermore, it has a free end 33 projecting from the edge 5 of the front upright 6 of said sliding opening 3, so , specifically. able to cooperate with the corresponding amount 8 of the frame 9 when closing the door, window or the like. The opposite end 34 of this probe 32 is, meanwhile. directly attached to the blocking member 22 arranged

  vertically, or perpendicular to the axis of the probe 32.

  Preferably, the locking member 22 comprises on either side of its vertical median plane 35 of the connecting means 36 able to cooperate with the end: 34 of the probe 32. Thus, the latter can extend, according to the case. on one side or the other with respect to this blocking member 22, thus making the anti-false maneuver device 1 reversible and. therefore, applicable to a sliding leaf closing at

left or right.

  According to a preferred embodiment, the elastic return means 23 consist, substantially, of an elastic mounting of the locking member 22 on the support structure 24. In fact, these consist of an elastic material, whatever either of the synthetic or metallic type which allows the blocking member 22 to resume, systematically. its initial equilibrium position with respect to said support structure 24 after each deformation which is printed on it

by the 3 'probe.

  As for the connection means 25 associated with this support structure 24 and capable of cooperating with complementary connection means 26 corresponding to the housing 14 of the locking fitting 2, they can be constituted by non-retractable means such as bonding, riveting , welding or other or even by means of retractable nature. Such a retractable solution is preferred. just like limiting the assembly operation of the anti-false operation device on a locking fitting 2. has a simple assembly operation requiring no

  tools and allowing, if necessary. an a posteriori pose.

  The embodiment of these connecting means 25 as shown in the different figures of the accompanying drawings meets these

conditions.

  Thus, said connecting means 25 are constituted by two elastic tabs 37. 38 equipping the ends 39, 40 of the support structure 24 and extending. in parallel. to the locking member 22, ie parallel to the longitudinal axis of the housing 14. In addition, these elastic tabs 37, 38 comprise. each. at least one recess 41 at their external lateral edge 42 in which a return 19 can take position. 20 fitted to the rear vertical edge 18 of the wings 16. 17 which define the housing 14, and this, under the conditions which

will be exposed now.

  Thus, the complementary connecting means 26 are constituted, substantially. by return sections 43, 44 delimited on both sides, by interruptions 45. 46 of said returns 19, 20 obtained by

proper machining.

  Therefore. each of these return sections 43, 44 defines, at its ends 47, 48 a stop against which bears the recess 49..50 delimiting, on either side, the recess 41 machined

in the elastic tabs 37, 38.

  Thus, during assembly, due to the elastic nature of these lugs 37. 38. these are brought closer to one another so as to precisely allow the engagement of the return sections 43, 44 in the corresponding recesses 41. I1 agrees in this regard that said elastic tabs 37, 38 comprise. at their free end 51 and at their dorsal face 32, oriented towards the rear wall 27 of the housing 14, access ramps 53 having the function, precisely, of facilitating this engagement of the return sections 43, 44

in said recesses 41.

  As can be seen from the above description, the

  embodiment more particularly shown in the figures of the accompanying drawings. has a certain number of characteristics which makes the anti-mishandling device, according to the invention, particularly interesting. Thus, since the locking member 22 and the tabs 37, 38 are of an elastic nature, they can be made of the same material. just like, finally, the support structure 24. As a result, this anti-false operation device 1 can result from a simple molding process in the case of production in a synthetic material. Furthermore, the mounting of this anti-tampering device on a locking fitting can be carried out without tools. It can thus be delivered as is to the user who can decide to equip it or 1 (

  not a locking fitting 2, in particular for sliding opening 3.

  Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way there

  limited and that various modifications of shapes, materials and combinations of these various elements can be made to it, without thereby departing from the scope and spirit of the invention.

l1

Claims (9)

  1. Anti-tampering device, intended for a locking fitting (2). in particular for a sliding door (3), window or the like opening, comprising a housing (14) inside which is capable of moving at least one movable element (15), such as a slide, actuating at least one member locking (4), such as a hook bolt, this anti-false operation device (1) comprising a locking member 22 subjected to elastic return means (23) in the locking position and even be brought into the unlocked position against the action of the elastic return means (23). under the direct or indirect impulse of the sleeping frame (9) of the door, window or the like, characterized in that it comprises a support structure (24) provided with connecting means (25) capable of cooperating with means of complementary link (26) integral with the housing (14) of the locking fitting (2), the locking member (22) being shaped to be able to block said movable element (15), disposed inside the housing ( 14) and   by means of which the locking member (4) is actuated.   2. Anti-false operation device according to claim 1, characterized in that the blocking member (22) comprises a blocking lug (31) capable of cooperating with a lug (30) secured to the movable element (15) through an opening present, for this purpose, at the rear wall (27) corresponding to the housing (14) and with which are able to cooperate the connecting means (25) of the structure   support (24) of said anti-false operation device (1).   3. Locking fitting. especially for sliding door opening. window or the like, comprising a housing (14) inside which at least one movable element (15) is able to move, such as a slide. actuating at least one locking member (4), such as a hook bolt. this locking fitting (2) further comprising an anti-tamper device (1) capable of immobilizing the locking member (4) in the unlocked position and comprising a locking member (22) subjected to elastic return means in the locking position and capable of being brought into the unlocking position, against the action of the elastic return means, under the direct or indirect impulse of the sleeping frame (9) of the door, window or similar, characterized in that the anti-false operation device (1) comprises a support structure (24) provided with the locking member (22), as well as connecting means (25) capable of cooperating with complementary connecting means (26) integral with the rear wall (27) of the housing (14), this rear wall (27) further comprising an opening allowing the locking member (22) to cooperate with the element mobile (15). 4. Locking fitting according to claim 3, characterized in that the movable element (15), such as a slide, comprises, on its dorsal face (29) oriented towards the rear wall (27) of the housing (14), a lug (30) on either side of which, in the direction of movement communicated to the movable element (15), is able to position a locking lug (31) fitted to the blocking (22) so as to immobilize, in a given direction of movement, said element mobile (15).   5. Lock fitting according to any one of the claims   3 and 4, characterized in that the anti-mishandling device comprises a feeler (32) integral with the blocking member (22) and able to cooperate directly or indirectly with the fixed frame (9) to push back the locking member (22) in its unlocked position against   the action of the elastic return means (23).   6. Lock fitting according to claim 5, characterized in that the longitudinal axis of the locking member (22) is parallel to the longitudinal axis of the housing (14), the axis of the feeler (32) being   perpendicular to the locking member (22).   7. Locking fitting according to claim 3 comprising a housing (14) whose rear wall (27) is materialized by returns (19, 20) oriented in the direction of the longitudinal median plane of the locking fitting (2) and equipping the rear vertical edge (18) of two parallel vertical wings (16, 17), characterized in that the connecting means (25) of the anti-mishandling device (1) are constituted by two elastic tabs (37, 38 ) equipping the ends (39. 40) of the support structure (24) and extending parallel to the longitudinal axis of the housing (14). these elastic tabs (37, 38) each comprising at least one recess (41) at their external lateral edge (42) in which a return section (43. 44) can be positioned, on either side other, by interruptions (45, 46) arranged at the returns (19, 20), these return sections (43,   44) constituting the complementary connecting means (26).   8. Locking fitting according to claim 7, characterized in that the elastic tabs (37, 38) have, at their free end (51) and at their dorsal face (52) oriented towards the wall rear (27) of the housing (14), access ramps (53) to facilitate the engagement of the return sections (43, 44) in the recesses (41).   9. Locking fitting according to claims 3 to 8,   characterized in that the anti-false operation device (1) defined by the blocking member (22), the support structure (24) and the elastic tabs (37. 38) is made of an elastic material, all particularly in a synthetic material and obtained by a molding process ,.