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EP0270423B1 - Process for equipping a bolt and keeper unit with protection and reinforcement fittings, and unit obtained by this process - Google Patents

Process for equipping a bolt and keeper unit with protection and reinforcement fittings, and unit obtained by this process Download PDF

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Publication number
EP0270423B1
EP0270423B1 EP87402532A EP87402532A EP0270423B1 EP 0270423 B1 EP0270423 B1 EP 0270423B1 EP 87402532 A EP87402532 A EP 87402532A EP 87402532 A EP87402532 A EP 87402532A EP 0270423 B1 EP0270423 B1 EP 0270423B1
Authority
EP
European Patent Office
Prior art keywords
bolt
door
lock
plate
striking plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87402532A
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German (de)
French (fr)
Other versions
EP0270423A1 (en
Inventor
Jean Pierre Louap
Jean Xavier Lagarrigue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouvelle Des Serrures Rubis Ste
Original Assignee
Nouvelle Des Serrures Rubis Ste
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Publication date
Application filed by Nouvelle Des Serrures Rubis Ste filed Critical Nouvelle Des Serrures Rubis Ste
Priority to AT87402532T priority Critical patent/ATE51051T1/en
Publication of EP0270423A1 publication Critical patent/EP0270423A1/en
Application granted granted Critical
Publication of EP0270423B1 publication Critical patent/EP0270423B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples

Definitions

  • the present invention relates to sets of locks for doors constituted by the actual lock and its associated strike, of the type known as security lock.
  • FR-A 2 457 363 partially remedies the drawbacks of conventional strikes by providing projecting retaining means on the plate consisting of partially pressed tabs and forming anchoring spouts in the frame pierced with a hole receiving a screw screwed into this frame.
  • lock mechanism is itself vulnerable, since it always has a part in which it can be destroyed by a hole made by means of a drill.
  • the object of the invention is to remedy these drawbacks, both on existing sets of security locks and on new sets.
  • a housing is hollowed out in the door and the protective member is placed in this housing.
  • the subject of the invention is also an assembly constituted by a lock or a latch and by its associated strike, of the type in which the lock or the latch is mounted on the door set back relative to the edge thereof, characterized in that that the safe of the lock or of the bolt comprises a support block for the bolt, which extends between the latter and the surface of the door and between the edge of the latter and said safe, the latter having a housing formed at the vulnerable part of its mechanism, and a protective member freely freely rotatable in said housing, and in that the associated strike includes between the fixing screws, a massive reinforcement located in the re-entrant angle formed between the plate and his body.
  • a door 1 has been shown in the closed position with its edge 2 in a rebate 3 of a wooden frame 4.
  • a set of lock and associated keeper is mounted on the door and its frame, the lock 5 being fixed on the door 1 set back relative to the edge 2, by means of screws 6.
  • the associated keeper 7 is fixed to the frame 4, with its plate 8 extending in the rebate 3, by means of screws 9.
  • the lock assembly is shown in the locking position with its bolt 10 engaged in the keeper 7.
  • FIG. 1 it can be seen that when a weighing is applied according to arrow A on the door 1, the bolt 10 extending in overhang above the surface portion of the door 1 situated between the edge 2 of the latter and the latch 5, works in deformation and as a lever which can cause the screws 6 to be torn off at the level of the arrow B, also tending to tear off the strike 7.
  • the door 1 can easily be attacked with a drill to drill a hole parallel to the barrel 11 of the lock in order to destroy the mechanism.
  • a cavity or recess 12 for example circular, is dug in the door 1, in which there is a protective member 13 constituted for example by a disc made of treated steel, of high resistance, at tungsten or other, so that it can rotate freely in the housing 12.
  • a protective member 13 constituted for example by a disc made of treated steel, of high resistance, at tungsten or other, so that it can rotate freely in the housing 12.
  • a block 14 of support for the bolt 10 is fixed by means of a screw between the latch 5 and the edge 2 of the door, which fills very little free space between the latter and the door. , to the edge of it.
  • retaining means capable of penetrating the frame 4 are formed thereon.
  • each end of the plate 8 of the keeper by two parallel saw cuts a tongue 15 which is then folded at right angles inwards as shown in Figure 3.
  • the support block 14 it is advantageous for the support block 14 to have a sufficiently large area to prevent it from sinking into the wood of the door.
  • FIGS. 2, 4 and 5 show a set of latch and keeper comprising protection and reinforcement means according to the invention, as described above, which are applied to it during manufacture.
  • the trunk of the lock 25 is closed, on its side applied against the door 21, by a plate 26 having an extension 27 made of material, the length of which corresponds at least to that of the part 28 of the bolt 29 which projects from the trunk of the lock in the unlocked position, and of the same surface as this part, and the thickness of which fills the gap between the latter and the surface of the door 21.
  • the plate 26 has a circular housing 30, at the vulnerable part of the latch mechanism, and in which is disposed a protective member 31 of hardened steel.
  • this member 31 is coated with an adhesive to hold it in place in the housing 30 before mounting the lock. It is understood of course that this adhesive does not prevent the protective member from rotating freely in its housing if it is attacked by the drill of a drill.
  • the associated keeper 32 of the assembly is shown in FIGS. 4 and 5.
  • Its plate 33 comprises two studs 34 made from one piece, or fixed, projecting from the face of the plate which is applied to the frame in order to engage in corresponding holes previously drilled in it.
  • the pins 34 are located set back from the ends of the plate and there are provided therein two additional holes 35 between the pins 34, in order to avoid deformation in this region of the plate.
  • two holes are drilled capable of receiving the studs 34 and the protruding angle of the frame is cut in order to allow the reinforcement of the reinforcement 36. as shown at 38 (FIG. 5).
  • the procedure is the same on a wooden frame, but at least one oblique screw 39 is added in order to reinforce the fixing of the keeper.

Landscapes

  • Lock And Its Accessories (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Electric Cable Installation (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Connection Or Junction Boxes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1. Method for protecting and reinforcing an existing assembly of a lock or security bolt (5), comprising a lock, or a bolt, of the type mounted set back with respect to the edge (2) of the door (1), and its associated striking plate (7), in which the plate (8) of the striking plate (7) comprises retention means (15) suitable for penetrating into corresponding recesses formed in the door frame, characterised in that, on the one hand, a freely rotatable protection member (13) is interposed between the door (1) and the case of the lock or bolt (5) in the vulnerable region of its mechanism, and on the other hand, a support block (14) for the bolt is interposed between the bolt (10) and the door, the support block covering the portion of the surface of the bolt between its edge and the said case and in that a substantial reinforcement situated in the reflex angle formed between the plate and its body is formed on the striking plate between the fixing screws.

Description

La présente invention est relative aux ensembles de serrures pour portes constitués par la serrure proprement dite et sa gâche associée, du type dit verrou de sécurité.The present invention relates to sets of locks for doors constituted by the actual lock and its associated strike, of the type known as security lock.

Le nombre croissant de cambriolages avec effraction a conduit les fabricants à effectuer de nombreuses recherche afin de connaître le comportement de ces ensembles de verrous sous l'action des différents moyens utilisés par les malfaiteurs pour les violer et pour fracturer les portes dont ils assurent la fermeture, de manière à déceler les faiblesses de ces ensembles.The growing number of burglaries has forced manufacturers to do a lot of research in order to find out the behavior of these sets of locks under the action of the different means used by criminals to rape them and to break the doors they close. , so as to detect the weaknesses of these sets.

Les essais auxquels la demanderesse a procédé ont fait apparaître les points essentiels qui intéressent la gâche, sans laquelle la serrure n'aurait pas de raison d'être, le mécanisme intérieur du verrou et son pêne.The tests which the applicant has carried out have revealed the essential points which interest the keeper, without which the lock would have no reason to be, the internal mechanism of the lock and its bolt.

On a constaté que la platine de la gâche se déformait dans sa partie entre les vis de fixation, avant que celles-ci soient arrachées.It was found that the plate of the strike was deformed in its part between the fixing screws, before they were torn off.

FR-A 2 457 363 remédie en partie aux inconvénients des gâches classiques en prévoyant sur la platine des moyens de retenue en saillie constitués par des languettes partiellement enfoncées et formant des becs d'ancrage dans l'huisserie percés d'un trou recevant une vis vissée dans cette huisserie.FR-A 2 457 363 partially remedies the drawbacks of conventional strikes by providing projecting retaining means on the plate consisting of partially pressed tabs and forming anchoring spouts in the frame pierced with a hole receiving a screw screwed into this frame.

Des essais d'effraction ont montré que ces moyens n'offraient cependant pas toujours la résistance escomptée.Break-in tests have shown that these means did not always offer the expected resistance.

Il apparait notamment que lorsque le pêne est complètement engagé dans la gâche il présente une longueur relativement importante en porte-à-faux qui est due à la position du verrou, qui est nécessairement en retrait par rapport au bord de la porte: lorsqu'une pesée est appliquée sur la porte, le pêne se comporte comme un levier dont le point d'appui est le bord du coffre du verrou et pouvant provoquer l'arrachage des vis qui sont les plus éloignées de la gâche.It appears in particular that when the bolt is fully engaged in the keeper it has a relatively large length in overhang which is due to the position of the lock, which is necessarily set back from the edge of the door: when a weighing is applied to the door, the bolt behaves like a lever whose fulcrum is the edge of the lock box and which can cause the removal of the screws which are furthest from the striker.

Enfin le mécanisme du verrou est lui-même vulnérable, car il présente toujours une partie dans laquelle il peut être détruit par un trou pratiqué au moyen d'une perceuse.Finally, the lock mechanism is itself vulnerable, since it always has a part in which it can be destroyed by a hole made by means of a drill.

L'invention a pour but de remédier à ces inconvénients, tant sur des ensembles de verrous de sécurité existants que sur des ensembles neufs.The object of the invention is to remedy these drawbacks, both on existing sets of security locks and on new sets.

Elle a pour objet à cet effet un procédé pour protéger et renforcer un ensemble de serrure ou de verrou de sécurité existant, constitué par une serrure, ou un verrou, du type monté en retrait par rapport au bord de la porte, et par sa gâche associée dans laquelle la platine de la gâche comporte des moyens de retenue: aptes à pénétrer dans des évidements correspondant réalisés dans l'huisserie caractérisé en ce qu'on interpose d'une part entre la porte et le coffre de la serrure ou du verrou, dans la région vulnérable de son mécanisme, un organe de protection librement rotatif et d'autre part entre le pêne et la porte, un bloc d'appui pour le pêne qui couvre la portion de surface de celle-ci entre son bord et ledit coffre, et en ce qu'on forme sur la gâche, entre les vis de fixation, un renfort massif situé dans l'angle rentrant formé entre la platine et son corps.It has for this purpose a method for protecting and reinforcing an existing lock or security lock assembly, constituted by a lock, or a bolt, of the type set back from the edge of the door, and by its keeper associated in which the plate of the strike includes retaining means: able to penetrate into corresponding recesses made in the frame characterized in that one interposes on the one hand between the door and the trunk of the lock or bolt, in the vulnerable region of its mechanism, a freely rotating protection member and on the other hand between the bolt and the door, a support block for the bolt which covers the surface portion of the latter between its edge and said trunk , and in that one forms on the keeper, between the fixing screws, a massive reinforcement located in the re-entrant angle formed between the plate and its body.

Suivant un développement du procédé selon l'invention, on creuse un logement dans la porte et on dispose l'organe de protection dans ce logementAccording to a development of the method according to the invention, a housing is hollowed out in the door and the protective member is placed in this housing.

L'invention a également pour objet un ensemble constitué par une serrure ou un verrou et par sa gâche associée, du type dans lequel la serrure ou le verrou est monté sur la porte en retrait par rapport au bord de celle-ci, caractérisé en ce que le coffre de la serrure ou du verrou comporte un bloc d'appui pour le pêne, qui s'étend entre celui-ci et la surface de la porte et entre le bord de celle-ci et ledit coffre, ce dernier présentant un logement ménagé au niveau de la partie vulnérable de son mécanisme, et un organe de protection disposé librement rotatif dans ledit logement, et en ce que la gâche associée comporte entre les vis de fixation, un renfort massif situé dans l'angle rentrant formé entre la platine et son corps.The subject of the invention is also an assembly constituted by a lock or a latch and by its associated strike, of the type in which the lock or the latch is mounted on the door set back relative to the edge thereof, characterized in that that the safe of the lock or of the bolt comprises a support block for the bolt, which extends between the latter and the surface of the door and between the edge of the latter and said safe, the latter having a housing formed at the vulnerable part of its mechanism, and a protective member freely freely rotatable in said housing, and in that the associated strike includes between the fixing screws, a massive reinforcement located in the re-entrant angle formed between the plate and his body.

La description qui va suivre, en regard des dessins annexés à titre d'exemples non limitatifs, permettra de bien comprendre comment l'invention peut être mise en pratique.

  • La figure 1 est une vue schématique partielle en coupe montrant le bord d'une porte dans la feuillure d'une huisserie en bois et comportant un ensemble de verrou et de gâche, auquel a été appliqué le procédé de l'invention.
  • La figure 2 est une vue analogue à celle de la figure 1 montrant un ensemble de verrou et de gâche, suivant l'invention, monté sur une porte ayant une huisserie métallique.
  • La figure 3 est une vue partielle montrant un moyen de retenue formé sur l'une des extrémités de la platine d'une gâche existante, suivant le procédé de l'invention.
  • La figure 4 est une vue en perspective d'une gâche d'un ensemble de verrou et de gâche suivant l'invention.
  • La figure 5 montre la gâche de la figure 4 montée sur une huisserie en bois, une partie de la gâche en coupe partielle.
The description which follows, with reference to the accompanying drawings by way of nonlimiting examples, will make it possible to understand clearly how the invention can be put into practice.
  • Figure 1 is a partial schematic sectional view showing the edge of a door in the rebate of a wooden frame and having a set of latch and keeper, to which was applied the method of the invention.
  • Figure 2 is a view similar to that of Figure 1 showing a set of latch and keeper, according to the invention, mounted on a door having a metal frame.
  • Figure 3 is a partial view showing a retaining means formed on one end of the plate of an existing keeper, according to the method of the invention.
  • Figure 4 is a perspective view of a keeper of a lock and keeper assembly according to the invention.
  • Figure 5 shows the keeper of Figure 4 mounted on a wooden frame, part of the keeper in partial section.

En se référant à la figure 1, on a représenté une porte 1 en position de fermeture avec son bord 2 dans une feuillure 3 d'une huisserie en bois 4.Referring to FIG. 1, a door 1 has been shown in the closed position with its edge 2 in a rebate 3 of a wooden frame 4.

Un ensemble de verrou et de gâche associée, du type connu, est monté sur la porte et son huisserie, le verrou 5 étant fixé sur la porte 1 en retrait par rapport au bord 2, au moyen de vis 6. La gâche associée 7 est fixée sur l'huisserie 4, avec sa platine 8 s'étendant dans la feuillure 3, au moyen de vis 9.A set of lock and associated keeper, of the known type, is mounted on the door and its frame, the lock 5 being fixed on the door 1 set back relative to the edge 2, by means of screws 6. The associated keeper 7 is fixed to the frame 4, with its plate 8 extending in the rebate 3, by means of screws 9.

L'ensemble de verrou est représenté en position de verrouillage avec son pêne 10 engagé dans la gâche 7.The lock assembly is shown in the locking position with its bolt 10 engaged in the keeper 7.

En considérant la figure 1, on voit que lorsqu'une pesée est appliquée suivant la flèche A sur la porte 1, le pêne 10 s'étendant en porte-à-faux au-dessus de la portion de surface de la porte 1 située entre le bord 2 de celle-ci et le verrou 5, travaille en déformation et comme un levier pouvant provoquer un arrachement des vis 6 au niveau de la flèche B, en tendant également à arracher la gâche 7.By considering FIG. 1, it can be seen that when a weighing is applied according to arrow A on the door 1, the bolt 10 extending in overhang above the surface portion of the door 1 situated between the edge 2 of the latter and the latch 5, works in deformation and as a lever which can cause the screws 6 to be torn off at the level of the arrow B, also tending to tear off the strike 7.

En outre la porte 1 peut facilement être attaquée avec une perceuse pour forer un trou parallèlement au canon 11 du verrou afin d'en détruire le mécanisme.In addition, the door 1 can easily be attacked with a drill to drill a hole parallel to the barrel 11 of the lock in order to destroy the mechanism.

Suivant l'invention, pour protéger et renforcer cet ensemble, on dépose tout d'abord celui-ci.According to the invention, to protect and strengthen this assembly, first of all it is removed.

Après avoir repéré l'emplacement vulnérable du mécanisme, on creuse dans la porte 1 une cavité ou logement 12, par exemple circulaire, dans lequel on dispose un organe de protection 13 constitué par exemple par un disque en acier traité, à haute résistance, au tungstène ou autre, de façon qu'il puisse tourner librement dans le logement 12.After having identified the vulnerable location of the mechanism, a cavity or recess 12, for example circular, is dug in the door 1, in which there is a protective member 13 constituted for example by a disc made of treated steel, of high resistance, at tungsten or other, so that it can rotate freely in the housing 12.

En outre on fixe au moyen d'une vis entre le verrou 5 et le bord 2 de la porte un bloc 14 d'appui pour le pêne 10, qui remplit à très peu de chose près l'espace libre entre ce dernier et la porte, jusqu'au bord de celle-ci.In addition, a block 14 of support for the bolt 10 is fixed by means of a screw between the latch 5 and the edge 2 of the door, which fills very little free space between the latter and the door. , to the edge of it.

Enfin, pour améliorer la résistance de la gâche 7 à l'arrachement et à la déformation de sa platine 8, on forme sur celle-ci des moyens de retenue aptes à pénétrer dans l'huisserie 4.Finally, in order to improve the resistance of the keeper 7 to tearing off and to deformation of its plate 8, retaining means capable of penetrating the frame 4 are formed thereon.

Suivant un mode de mise en oeuvre du procédé de l'invention, on délimite dans chaque extrémité de la platine 8 de la gâche par deux traits de scie parallèles une languette 15 que l'on replie ensuite à angle droit vers l'intérieur comme représenté à la figure 3.According to an embodiment of the method of the invention, there is defined in each end of the plate 8 of the keeper by two parallel saw cuts a tongue 15 which is then folded at right angles inwards as shown in Figure 3.

De plus, pour empêcher toute déformation de cette platine par incurvation vers l'intérieur, dans sa partie intermédiaire entre les languettes 15, on perce deux trous 16 dans cette partie afin de recevoir deux vis 17 de fixation dans l'huisserie.In addition, to prevent any deformation of this plate by bending inwards, in its intermediate part between the tongues 15, two holes 16 are drilled in this part in order to receive two screws 17 for fixing in the frame.

On comprend que grâce à ce procédé on protège et on renforce considérablement l'ensemble de verrou et de gâche. En effet lors d'une tentative de percement du mécanisme, le foret d'une perceuse rencontre le disque de protection 13 qui tourne dans son logement sans offrir de prise.We understand that thanks to this process it protects and significantly strengthens the lock and keeper assembly. Indeed during an attempt to pierce the mechanism, the drill bit of a drill meets the protective disc 13 which rotates in its housing without offering a grip.

Lors d'une tentative d'effraction par exemple au moyen d'un levier suivant la flèche A (figure 1), le pêne 10 prend immédiatement appui sur le bloc 14 et n'est alors plus sollicité qu'en cisaillement.During an attempted break-in, for example by means of a lever in the direction of arrow A (FIG. 1), the bolt 10 immediately bears on the block 14 and is then no longer stressed except in shear.

On remarquera que dans le présent exemple d'une porte en bois il est avantageux que le bloc d'appui 14 présente une surface suffisamment grande pour éviter qu'il s'enfonce dans le bois de la porte.It will be noted that in the present example of a wooden door it is advantageous for the support block 14 to have a sufficiently large area to prevent it from sinking into the wood of the door.

On se référera maintenant aux figures 2, 4 et 5 qui montrent un ensemble de verrou et de gâche comportant des moyens de protection et de renforcement suivant l'invention, tels que décrits plus haut, qui lui sont appliqués en cours de fabrication.Reference will now be made to FIGS. 2, 4 and 5 which show a set of latch and keeper comprising protection and reinforcement means according to the invention, as described above, which are applied to it during manufacture.

Suivant l'example représenté à la figure 2, le coffre du verrou 25 est fermé, sur son côté appliqué contre la porte 21, par une plaque 26 comportant un prolongement 27 venu de matière dont la longueur correspond au moins à celle de la partie 28 du pêne 29 qui fait saillie du coffre du verrou en position de déverrouillage, et de même surface que cette partie, et dont l'épaisseur remplit l'intervalle entre celle-ci et la surface de la porte 21.According to the example shown in FIG. 2, the trunk of the lock 25 is closed, on its side applied against the door 21, by a plate 26 having an extension 27 made of material, the length of which corresponds at least to that of the part 28 of the bolt 29 which projects from the trunk of the lock in the unlocked position, and of the same surface as this part, and the thickness of which fills the gap between the latter and the surface of the door 21.

En outre, la plaque 26 présente un logement circulaire 30, au niveau de la partie vulnérable du mécanisme du verrou, et dans lequel est disposé un organe 31 de protection en acier durci.In addition, the plate 26 has a circular housing 30, at the vulnerable part of the latch mechanism, and in which is disposed a protective member 31 of hardened steel.

D'une façon avantageuse cet organe 31 est enduit d'un adhésif pour le maintenir en place dans le logement 30 avant le montage du verrou. On comprend bien entendu que cet adhésif n'empêche pas l'organe de protection de tourner librement dans son logement s'il est attaqué par le foret d'une perceuse.Advantageously, this member 31 is coated with an adhesive to hold it in place in the housing 30 before mounting the lock. It is understood of course that this adhesive does not prevent the protective member from rotating freely in its housing if it is attacked by the drill of a drill.

La gâche associée 32 de l'ensemble est représentée aux figures 4 et 5. Sa platine 33 comporte deux tétons 34 venus de matière, ou fixés, en saillie sur le face de la platine qui s'applique sur l'huisserie afin de s'engager dans des trous correspondants préalablement percés dans celle-ci.The associated keeper 32 of the assembly is shown in FIGS. 4 and 5. Its plate 33 comprises two studs 34 made from one piece, or fixed, projecting from the face of the plate which is applied to the frame in order to engage in corresponding holes previously drilled in it.

De préférence les tétons 34 sont situés en retrait des extrémités de la platine et il est prévu dans celle-ci deux trous supplémentaires 35 entre les tétons 34, afin d'éviter une déformation dans cette région de la platine.Preferably the pins 34 are located set back from the ends of the plate and there are provided therein two additional holes 35 between the pins 34, in order to avoid deformation in this region of the plate.

Dans l'angle formé par la platine avec le corps de la gâche, il est prévu un renfort massif 36 dans le milieu duquel est percé au moins un trou 37 percé obliquement.In the angle formed by the plate with the body of the keeper, there is provided a solid reinforcement 36 in the middle of which is drilled at least one hole 37 drilled obliquely.

Dans le cas d'une huisserie en métal, on fore deux trous aptes à recevoir les tétons 34 et on abat l'angle saillant de l'huisserie afin de permettre l'encastrement du renfort 36. comme représenté en 38 (figure 5).In the case of a metal frame, two holes are drilled capable of receiving the studs 34 and the protruding angle of the frame is cut in order to allow the reinforcement of the reinforcement 36. as shown at 38 (FIG. 5).

On procède de la même manière sur une huisserie en bois, mais on ajoute au moins une vis oblique 39 afin de renforcer la fixation de la gâche.The procedure is the same on a wooden frame, but at least one oblique screw 39 is added in order to reinforce the fixing of the keeper.

De nombreux essais ont démontré qu'un tel ensemble verrou-gâche présentait une résistance exceptionnelle aux tentatives d'effraction de la porte qui en est pourvue.Numerous tests have demonstrated that such a latch-strike assembly exhibited exceptional resistance to attempted break-ins of the door which is provided with it.

Cette résistance est encore améliorée lorsque le coffre du verrou et sa gâche sont usinés dans la masse.This resistance is further improved when the lock box and its strike are machined in the mass.

Claims (9)

1. Method for protecting and reinforcing an existing assembly of a lock or security bolt (5), comprising a lock, or a bolt, of the type mounted set back with respect to the edge (2) of the door (1), and its associated striking plate (7), in which the plate (8) of the striking plate (7) comprises retention means (15) suitable for penetrating into corresponding recesses formed in the door frame, characterised in that, on the one hand, a freely rotatable protection member (13) is interposed between the door (1) and the case of the lock or bolt (5) in the vulnerable region of its mechanism, and on the other hand, a support block (14) for the bolt is interposed between the bolt (10) and the door, the support block covering the portion of the surface of the bolt between its edge and the said case and in that a substantial reinforcement situated in the reflex angle formed between the plate and its body is formed on the striking plate between the fixing screws.
2. Method according to claim 1, characterised in that a housing (12) is hollowed in the door (1) and that the protection member (13) is located in this housing.
3. Method according to claim 1, characterised in the support block (14) for the bolt is fixed by means of a screw or in any other appropriate manner.
4. Assembly comprising a lock or a bolt and its associated striking plate, of the type in which the lock or the bolt is mounted on the door set back with respect to the edge thereof, characterised in that the case of the bolt or lock (25) comprises a support block (28) for the bolt (29), the block extending between the bolt and the surface of the door (21) and between the edge of the door and the said case which has a housing (30) arranged adjacent the vulnerable part of its mechanism, and a protection member (31) arranged freely rotatably in the said recess, and in that the associated striking plate (32) comprises between the fixation screws a substantial reinforcement (36) situated in the reflex angle formed between the plate (33) and its body.
5. Assembly according to claim 4, characterised in that the said support block (28) is formed of material with the case of the lock or bolt (25).
6. Assembly according to claim 5, characterised in that the said protection member (31) is retained in the said housing (30) by an adhesive.
7. Assembly according to any of claims 4 to 6, characterised in that the reinforcement (36) of the striking plate is apertured by at least one oblique hole (37) for guiding a screw (39) into a wooden door frame (4).
8. Assembly according to claim 7, characterised in that the said projections (15, 34) are situated set back from the extremities of the plate (8, 33) and that the fixing holes (16, 35) are situated between the said projections in the intermediate portion of the plate.
9. Assembly according to any of claims 4 to 8, characterised in that the case of the bolt and its striking plate are one-piece machinings.
EP87402532A 1986-11-19 1987-11-10 Process for equipping a bolt and keeper unit with protection and reinforcement fittings, and unit obtained by this process Expired - Lifetime EP0270423B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402532T ATE51051T1 (en) 1986-11-19 1987-11-10 METHOD OF ATTACHING PROTECTION AND REINFORCEMENT DEVICES TO A LOCK MADE UP OF BOLT AND HATCH BOX AND LOCK SO MADE UP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8616087 1986-11-19
FR8616087A FR2606818B1 (en) 1986-11-19 1986-11-19 METHOD FOR APPLYING PROTECTION AND REINFORCEMENT MEANS TO A LOCK AND STRIKE ASSEMBLY, AND ASSEMBLY COMPRISING SUCH MEANS

Publications (2)

Publication Number Publication Date
EP0270423A1 EP0270423A1 (en) 1988-06-08
EP0270423B1 true EP0270423B1 (en) 1990-03-14

Family

ID=9340977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402532A Expired - Lifetime EP0270423B1 (en) 1986-11-19 1987-11-10 Process for equipping a bolt and keeper unit with protection and reinforcement fittings, and unit obtained by this process

Country Status (5)

Country Link
EP (1) EP0270423B1 (en)
AT (1) ATE51051T1 (en)
DE (1) DE3761915D1 (en)
ES (1) ES2014030B3 (en)
FR (1) FR2606818B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3706624A1 (en) * 1986-03-03 1987-09-17 Willi Hering Closing arrangement for a door

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457363A1 (en) * 1979-05-22 1980-12-19 Chauvat & Sofranq Reunis Door catch for wooden door frames - has anchorage claws which cooperate with notches in door jamb

Also Published As

Publication number Publication date
FR2606818A1 (en) 1988-05-20
DE3761915D1 (en) 1990-04-19
ES2014030B3 (en) 1990-06-16
ATE51051T1 (en) 1990-03-15
EP0270423A1 (en) 1988-06-08
FR2606818B1 (en) 1989-02-24

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