EP0892133B1 - Lock fitting for sliding wings and anti-tampering means for such a fitting - Google Patents

Description

The invention relates to an anti-intrusion device for fittings. locking, comprising at least one locking member, such as a hook bolt or the like, able to appear projecting from the front edge of said opening so as to cooperate with an attached strike applied on the upright corresponding to the sleeping frame.

The present invention will find its application in the field of building hardware and related plus in particular, fittings for sliding sash.

In fact, we already know different locking fittings meeting the description above. More specifically, it is known a locking fitting for sliding opening of door, window or the like comprising at least one rod of maneuver located in a groove or notch present in rebate of the front upright of this sliding leaf. This operating rod actually moves to the back of a headrest under the impulse of an appropriate control mechanism, this in order to bring one or more organs of locking, such as a hook bolt or the like, in a unlocked or, on the contrary, locked position. In this last case, this locking member comes cooperate with an attached strike applied on the upright correspondent of the frame.

The problem with such locking fittings is in accessibility to the locking member (s) or still at the striker through the rebate of said door or window. So it is not uncommon to see that in the event of a break-in the opening of such a door or window was ordered at through a direct action exerted on this or these organs of locking. In addition, we were able to realize that a attempted break-in in such a manner and which fails leads, in most cases, to dysfunction of the locking fitting. Indeed, a locking member, such as a hook bolt, made directly integral with a operating rod and emerging from the headrest through a opening in the latter remains, in itself, relatively fragile depending on the type of constraint printed, directly, at this hook bolt. In addition, very often the strikes present, on their internal and / or external lateral sides, a "Undercut" authorizing the taking by means of a tool, such as a screwdriver or the like, which again leads to seriously damage this keeper, especially its fixing on the frame.

In addition, we know, in particular, by document EP-0.262.067, a locking fitting for a door or sliding type window whose opening and frame are designed by an assembly of tubular profiles made of synthetic or aluminum, such profiles coming to define, to height of the edge before said sliding leaf and also at height of the corresponding upright of the frame, the grooves in "U". Through such a configuration, this amount before of the opening is able to fit on the amount corresponding to the frame by covering said groove in "U" of the latter.

Ultimately if it seems that through such a particular configuration of the profiles making up the door or sliding window and in which one comes to shelter the bolt hook and keeper of the locking fitting, such profiles, whether of aluminum or, a fortiori, of material synthetic, are in fact by no means capable of offering a any resistance to the aggression of a tool, such as a screwdriver or the like, which can be used by a burglar during an attempted break-in.

It is also known, from document US-A-5 290 077, a fitting multipoint type for sliding doors incorporating a anti-tampering device.

More particularly, the locking fitting coming from equip the front upright with such a sliding leaf has a central box recessed in this amount and receiving a control mechanism through which, by action on a handle, a user can act on operating rods cooperating, through means of suitable transmission, with locking devices housed in auxiliary boxes positioned, again, in dwellings provided with this amount before of said sliding leaf.

More specifically, the locking member is under shaped like a T-shaped stud that protrudes from at the bottom of a bowl which, in its front part, such an auxiliary box. This bowl is sized to accommodate the strike, buttonhole type, reported in applies to the corresponding amount of the sleeping frame.

The object of the present invention is to remedy all of the aforementioned drawbacks, this making it possible to render inaccessible locking devices or strikes of the fitting, that the profiles making up the sliding sash and the sleeping frame may or may not have a particular configuration as described above. This translates into safety increased these locking fittings while preventing their deterioration following an attempted break-in.

• un coffre anti-effraction défini par une paroi interne et une paroi externe s'étendant, depuis un fond dont elles sont rendues solidaires, parallèlement au plan de l'ouvrant coulissant à hauteur du chant avant de ce dernier, ledit fond du coffre anti-effraction étant prévu apte à être fixé en applique sur une têtière et comportant une lumière oblongue traversée par l'organe de verrouillage et dont les dimensions sont adaptées à la course de ce dernier ;
• et une gâche constituée par un capot comportant, dans sa partie avant, une ouverture pour la réception de l'organe de verrouillage, tandis que dans sa partie arrière, ce capot est à même de venir coiffer des moyens supports aptes à être rapportés en feuillure du dormant, entre sa partie arrière et sa partie avant, ledit capot présentant une forme sans contre-dépouille, ni aspérité ou décrochement empêchant l'accrochage d'un outil lors d'une tentative d'effraction.

To this end, the invention relates to an anti-intrusion device for a locking fitting for a sliding leaf, of the type comprising at least one locking member, such as a hook bolt, capable of being projecting from the edge before said sliding leaf, in order to cooperate with an attached strike applied on the corresponding amount of the frame, characterized in that it comprises:

• a burglar-proof safe defined by an internal wall and an external wall extending from a bottom of which they are made integral, parallel to the plane of the sliding sash at the level of the edge before the latter, said bottom of the safe break-in being provided capable of being fixed to the surface on a headrest and comprising an oblong slot through which the locking member passes and whose dimensions are adapted to the stroke of the latter;
• and a keeper constituted by a cover comprising, in its front part, an opening for the reception of the locking member, while in its rear part, this cover is able to come to cover support means able to be brought into rebate of the frame, between its rear part and its front part, said cover having a shape without undercut, asperity or recess preventing the attachment of a tool during an attempted break-in.

The advantages arising from the present invention lie, obviously in the fact that a locking fitting for sliding opening provided with such an anti-intrusion device is not very vulnerable to attacks that it is likely to suffer at the level of its organs arranged in rebate. To note that such an anti-intrusion device requires means ultimately very simple which in no way harm the reliability or performance of such a fitting locking and which, moreover, are cost negligible.

• la figure 1 est une vue schématisée partielle et en coupe d'un dispositif anti-effraction conforme à l'invention, équipant une ferrure de verrouillage pour ouvrant coulissant et comportant un organe de verrouillage sous forme d'un pêne à crochet coopérant avec une gâche rapportée en feuillure du cadre dormant ;
• la figure 2 est une représentation en coupe selon II-II de la figure 1 ;
• la figure 3 est une vue schématisée et en coupe longitudinale du coffre ;
• la figure 4 est une vue schématisée et en plan de ce coffre ;
• la figure 5 est une vue schématisée et en coupe longitudinale du capot de la gâche ;
• la figure 6 est une vue schématisée et en élévation d'un support de gâche ;
• la figure 7 est une vue schématisée de droite de la figure 5.

The invention will be better understood on reading the description which follows and the drawings representing an exemplary embodiment:

• Figure 1 is a partial schematic sectional view of an anti-intrusion device according to the invention, fitted to a locking fitting for a sliding leaf and comprising a locking member in the form of a hook bolt cooperating with a keeper reported in rebate of the sleeping frame;
• Figure 2 is a sectional representation along II-II of Figure 1;
• Figure 3 is a schematic view in longitudinal section of the trunk;
• Figure 4 is a schematic plan view of this chest;
• Figure 5 is a schematic view in longitudinal section of the cover of the striker;
• Figure 6 is a schematic view in elevation of a keeper support;
• FIG. 7 is a diagrammatic view on the right of FIG. 5.

As shown in Figure 1 of the attached drawing, the present invention relates to the field of fittings of locking more particularly intended for opening sliding doors, windows or the like. In fact, such locking fitting 1, it has only been shown in the Figure 1 that a locking member 2, here, in the form of a hook bolt, projecting from the edge front 3 of this sliding leaf 4 so as to cooperate with a keeper 5 which is reported in rebate 6 of the amount correspondent 7 of the frame 8.

It is well understood that such a locking fitting 1 can receive several locking members 2 which, in this case and as shown in Figures 1 and 2, can be actuated by means of one or more operating rods 9 arranged in a groove or in a notch 10 precisely formed at the level of the front edge 3 of the sliding leaf 4.

In fact, such an operating rod 9 then comes move to the rear of a headrest 11 comprising one or several openings 12 for the passage of the member (s) of lock 2. Note, in this regard, that just like the latch hook shown in Figures 1 and 2, this or these organs 2 can be returned, if necessary integral, directly, with the operating rod or rods 9.

These are actuated through a control mechanism suitable (not shown) itself operated by a handle and, if necessary, supplemented by a locking mechanism comprising a key element such as a barrel.

It is still important to clarify that with regard to the the keepers 5 arranged in rebate 6 of the frame 8, they can, as illustrated in figure 2, be totally visible and prominent at this rebate 6, but they can also be housed in a "U" groove that defines, at this rebate 6, the profile by example, of metallic or plastic type, corresponding to frame 7 of the frame 8.

In any event, the present invention relates, all in particular, to an anti-intrusion device 33 for such locking fittings for sliding door. This burglar-proof device comprises, on the one hand, a safe burglar-proof 13 defined by at least one internal wall 14 and an outer wall 14A, extending parallel to the plane of the sliding leaf 4, at the height of the front edge 3 of this last and on either side of a locking member 2, between these walls 14, 14A being able to fit the keeper 5 attached to the frame 8, once the sliding leaf 4 closed on the latter.

Thus, this trunk 13 can, as shown in Figures 1 at 4, completely cover the keeper 5, the walls 14, 14A being connected by end walls 15, 15A, here in shape semi-circular, while being joined together like these last, of a bottom 16 able to be fixed in wall, by riveting, screwing, welding or other, on the headrest 11. Thus, this bottom 16 of the trunk 13 comprises, outside the openings 17 for the possible passage of fasteners, a light oblong 18 crossed by the locking member 2 and of which the dimensions are adapted to the course of the latter.

In the particular case where the keeper 5 is retracted in a groove provided in the rebate 6 of the frame 8, it may be that between said keeper 5 and the walls that delimits, laterally said groove, cannot insert the walls internal 14 and external 14A of the boot 13. Under these conditions, these internal 14 and external 14A walls of the trunk 13 come protect said keeper 5 by coming to be located outside said groove, on either side of the walls delimiting these laterally. Under these conditions, these internal walls 14 and external 14A are independent of the end walls 15, 15A, which themselves fit into said groove, coming locate above and below the striker 5.

In this regard, the anti-intrusion device comprises, on the other hand, a keeper 5 with special characteristics. So, this is defined as visible in Figures 1, 2 and 5 to 7, by a cover 19, comprising in its front part facing of the locking member 2, an opening 20 allowing, specifically, the engagement and attachment of this organ of lock 2, here shown in the form of a hook bolt. As for the level of its rear part 21, this cover 19 covers support means 22 with which it is made integral and supplementing said keeper 5. Ultimately, these support means 22 are intended to secure this strike 5 in rebate 6 of the upright 7 corresponding to the frame 8.

To return, in particular, to the cover 19, the latter present between its rear part 21 and its front part comprising the opening 20, a shape without undercut nor roughness or detachment which could authorize its taking or are hooked by means of a tool, for example a screwdriver or the like. This allows, ultimately, to overcome a attempt to tear off this keeper 5. Note that such cover 19 can be designed by molding, stamping or a analogous process.

As for the support means 22, they are, as already indicated above, adapted to the nature and shape of the rebate 6 of the dormant 8. In this regard, when it is in the form an assembly of metal or material profiles plastic, it is usually defined in rebate 6, a “T” groove 23 intended to contribute, precisely, to the fixing of locking fitting members. In these conditions, the support means 22 advantageously comprise a shoe 24 intended to be inserted into said groove 23 and a emerging part 25 of the latter on which comes position the cover 19.

Advantageously, the support means 22 are broken down into two elementary parts 22A and 22B each having a shoe 24 and an emerging part 25, these elementary parts 22A, 22B thus being spaced from each other so as to leave a passage to the locking member 2 intended to pass through the opening 20 of the cover 19.

In fact, as shown in Figure 1, these parts elementary 22A, 22B constituting the support means 22, come to stay, especially with regard to their part emerging 25 under the hood 19 at the ends 26, 27 of the last.

Preferably, the fixing members 28, such as screws, simultaneously provide the connection between the cover 19 and the support means 22 on the one hand, and between the latter and the sleeping 8 on the other hand. So these fasteners 28 pass through said cover 19 simultaneously in its front part and, said elementary parts 22A, 22B for cooperating with the carpentry.

However, under such conditions, position and maintain said striker 5 and in particular of its support means 22 on the frame 8, during the fitting and tightening of the fixing members 28. For this purpose, and according to a first embodiment, the shoe 24 comprises a cross section adjusted to tight tolerances to the groove 23. However and as shown in the figures 6 and 7, this shoe 24 can still receive, at its side walls 29, 30 of the retaining means 31, in the form of pins, striations, ribs or the like, intended to ensure the immobility in translation of these support means 22 in said groove 23.

According to another feature of the present invention, the or the openings 32 for the passage of fasteners 28, provided in these support means 22, especially the elementary parts 22A, 22B defining the latter, are of oblong shape facilitating the relative positioning of the cover 19 on its support means 22.

As already stated several times above, these are adapted to the configuration of the window frame 8. In addition, it should be noted that depending on the game that one has a rebate between the sliding leaf 4 and the frame 8 and / or the projecting part of the locking member 2, the positioning of the strike plate 5 should be adjusted. in particular, one can imagine making available to the carpenter several sets of elementary parts 22A, 22B defining the support means 22, allowing it, precisely, to adapt the positioning of the keeper 5 by compared to this rebate game.

Finally, we observe that such an anti-intrusion device 33 can easily be fitted, after the fact, with a fitting of lock which was initially lacking and which is, already provided with a door, window or the like sliding.

Claims (7)

1. Anti-tampering device for a locking fitting for a sliding leaf (4), of the type including at least one locking organ (2) such as a hook bolt, capable of being protruding with respect to the front edge (3) of said sliding leaf (4) with a view to co-operating with a keeper (5) inserted against the corresponding stile (7) of the sash-frame, characterised in that it includes :

   an anti-tampering box (13) defined by at least one inner wall (14) and one outer wall (14A) extending, from a bottom (16) they are made integral with, parallel to the plane of the sliding leaf (4), at the level of the front edge (3) of the latter, said bottom (16) of the anti-tampering box (13) being designed so as to be capable of being fixed against a face-plate (11) and including an elongated slot (18) through which passes the locking organ (2) and the dimensions of which are adapted to the travel length of the latter;

   and a keeper (5) formed by a cap (19) including, in its front portion, an opening (20) for receiving the locking organ (2), while, in its rear portion (21) this cap (19) is capable of covering supporting means (22) capable of being inserted in the fillister (6) of the sash-frame (8), between its rear portion (21) and its front portion, said cap (19) having a shape with neither undercut nor unevenness nor set-back, impeding the hooking-in of a tool during an attempt of breaking-in.
2. Anti-tampering device according to claim 1, characterised in that the inner (14) and outer (14A) walls of the anti-tampering box (13) are connected by end walls (15, 15A).
3. Anti-tampering device according to claim 1, the keeper (5) of which withdraws into a groove provided for in the fillister (6) of the sash-frame (8), characterised in that the inner (14) and outer (14A) walls of the anti-tampering box (13) are located outside said groove, on both sides of the walls delimiting it laterally.
4. Anti-tampering device according to claim 3, characterised in that the anti-tampering box (13) includes end walls (15, 15A) that inscribe in said groove in which the keeper (5) is withdrawn, by being located above and under the latter.
5. Anti-tampering device according to claim 1, characterised in that the supporting means (22) include, on the one hand, a shoe (24) aimed at being inserted into a groove (23) present in the fillister (6) of the sash-frame (8) and, on the other hand, a protruding portion (25) on which the cap (19) is positioned, said shoe (24) including retaining means (31) in the form of spines, scores, ribs or the like, capable of insuring the immobility in translation of these supporting means (22) in said groove (23).
6. Anti-tampering device according to claims 1 and 5, characterised in that the supporting means (22) are comprised of two elemental parts (22A, 22B) each including a shoe (24) and a protruding portion (25), said elemental parts (22A, 22B) being thus spaced apart from each other, so as to leave a passageway for the locking organ (2) aimed at passing through an opening (20) in the front portion of the cap (19).
7. Anti-tampering device according to claim 6, characterised in that the elemental parts (22A, 22B) forming the supporting means (22) include elongated openings (32) for the passing through of fastening organs (28), such as screws or the like, simultaneously ensuring the connection between the cap (19) and said supporting means (22), on the one hand, and between the latter and the sash-frame (8), on the other hand.

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