EP0153892B1 - Safety device for preventing tampering with locks and door equipped therewith - Google Patents

Safety device for preventing tampering with locks and door equipped therewith Download PDF

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Publication number
EP0153892B1
EP0153892B1 EP85400275A EP85400275A EP0153892B1 EP 0153892 B1 EP0153892 B1 EP 0153892B1 EP 85400275 A EP85400275 A EP 85400275A EP 85400275 A EP85400275 A EP 85400275A EP 0153892 B1 EP0153892 B1 EP 0153892B1
Authority
EP
European Patent Office
Prior art keywords
lock
extremity
finger
pivoting
keyhole
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
Application number
EP85400275A
Other languages
German (de)
French (fr)
Other versions
EP0153892A1 (en
Inventor
Daniel Bernard Rouzée
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.)
Fichet Bauche SA
Original Assignee
Fichet Bauche SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fichet Bauche SA filed Critical Fichet Bauche SA
Publication of EP0153892A1 publication Critical patent/EP0153892A1/en
Application granted granted Critical
Publication of EP0153892B1 publication Critical patent/EP0153892B1/en
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/0075Locks or fastenings for special use for safes, strongrooms, vaults, fire-resisting cabinets or the like
    • E05B65/0082Locks or fastenings for special use for safes, strongrooms, vaults, fire-resisting cabinets or the like with additional locking responsive to attack, e.g. to heat, explosion
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/20Attack-actuated defeating mechanisms
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/7915Tampering prevention or attack defeating

Definitions

  • the part 1 has the shape of a somewhat deformed rigid tab, as shown at 8 in FIG. 2, and this tab is pivotally mounted on the lock body 2 via a small axis such as for example a grooved nail 9 force fitted into said body.
  • a small axis such as for example a grooved nail 9 force fitted into said body.
  • a small stud or the like projecting from the body 2 and coming from material or molding with it.

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  • Lock And Its Accessories (AREA)

Description

La présente invention a essentiellement pour objet un dispositif de sécurité à l'effraction d'une serrure.The present invention essentially relates to a security device against the breaking of a lock.

Elle vise également une porte d'armoire forte ou de coffre-fort par exemple dont la serrure est équipée d'un tel dispositif.It also relates to a strong cabinet door or a safe for example, the lock of which is fitted with such a device.

On a déjà proposé d'équiper les serrures de moyens appelés délateurs qui sont susceptibles de se déclencher sous l'effet d'une effraction pour condamner le mécanisme de serrure.It has already been proposed to equip the locks with means called informers which are capable of being triggered under the effect of a break-in to condemn the lock mechanism.

C'est ainsi qu'il est déjà connu de munir les serrures d'un doigt sollicité par un ressort retenu à l'aide d'un fil par exemple, lequel peut être détendu ou se sectionner sous l'effet d'une effraction de la serrure pour ainsi libérer le doigt qui bloque un élément du mécanisme de serrure.It is thus already known to provide the locks with a finger biased by a spring retained using a wire for example, which can be relaxed or cut under the effect of a break-in. the lock to free the finger which blocks an element of the lock mechanism.

Toutefois, les moyens proposés jusqu'à maintenant pour retenir et libérer le doigt délateur formaient avec celui-ci un ensemble relativement compliqué à monter, assez coûteux et ne pouvant pas s'adapter à tous les types de serrures.However, the means proposed so far for retaining and releasing the informant finger formed therewith a relatively complicated assembly to assemble, quite expensive and not able to adapt to all types of locks.

La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif de sécurité à l'effraction d'une entrée ou d'un nez de serrure, qui est particulièrement simple et compact, peu coûteux, pouvant s'adapter à divers types de serrure, et dont tous les éléments sont avantageusement regroupés sur le corps de serrure.The object of the present invention is to remedy these drawbacks by proposing a security device for breaking in of an entrance or a lock nose, which is particularly simple and compact, inexpensive, capable of adapting to various types. lock, and all of whose elements are advantageously grouped on the lock body.

A cet effet, l'invention a pour objet un dispositif de sécurité à l'effraction d'une serrure et du type comprenant un élément mobile retenu, tel que par exemple un doigt, sollicité par un moyen de rappel et susceptible de se libérer sous l'effet d'une effraction pour condamner le mécanisme de serrure, caractérisé par une pièce montée pivotante sur le corps de serrure et dont une extrémité, ou première extrémité, retient ledit élément ou doigt mobile, tandis que l'autre extrémité de ladite pièce, ou deuxième extrémité, est géométriquement identique à au moins une partie de t'entrée de serrure recevant la clé.To this end, the subject of the invention is a security device against the breaking of a lock and of the type comprising a retained movable element, such as for example a finger, urged by a return means and capable of being released under the effect of a break-in to condemn the lock mechanism, characterized by a part pivotally mounted on the lock body and one end or first end of which retains said movable element or finger, while the other end of said part , or second end, is geometrically identical to at least part of the keyhole receiving the key.

On comprend donc que lors d'une tentative d'effraction de la serrure notamment à l'aide d'un outil de perforation appliqué sur l'entrée ou le nez de serrure, la pièce pivotante précitée sera entraînée en rotation et fonctionnera à la manière d'un levier pour libérer le doigt délateur qui ainsi bloquera le mécanisme de serrure. Bien entendu, la clé pour ouvrir ou fermer la serrure n'aura aucune incidence, lors de son introduction ou de son retrait, sur la pièce pivotante commandant le doigt délateur.It is therefore understood that during an attempt to break in the lock, in particular using a perforation tool applied to the entry or the nose of the lock, the aforementioned pivoting part will be driven in rotation and will function in the manner a lever to release the informing finger which will thus block the lock mechanism. Of course, the key to open or close the lock will have no effect, during its introduction or removal, on the pivoting part controlling the delator finger.

Suivant une autre caractéristique de l'invention, la deuxième extrémité de la pièce pivotante peut se loger dans une fente ménagée dans le nez de serrure faisant saillie du corps de la serrure, cette fente étant orthogonale à l'axe de l'entrée de serrure dans ledit nez.According to another characteristic of the invention, the second end of the pivoting part can be housed in a slot made in the lock nose projecting from the body of the lock, this slot being orthogonal to the axis of the lock entry in said nose.

On précisera encore ici que la deuxième extrémité de la pièce pivotante comporte au moins une encoche ou analogue correspondant exactement à au moins une partie de l'entrée de serrure et du panneton de la clé.It will also be specified here that the second end of the pivoting part comprises at least one notch or the like corresponding exactly to at least part of the lock entry and of the key bit.

Selon encore une autre caractéristique de l'invention, la pièce précitée est montée pivotante sur le corps de serrure par l'intermédiaire d'un axe de pivotement venant de matière avec ce corps ou rapporté et fixé sur celui-ci.According to yet another characteristic of the invention, the aforementioned part is pivotally mounted on the lock body by means of a pivot axis coming integrally with this body or attached and fixed thereon.

Quant à la première extrémité précitée de la pièce pivotante, elle pénètre dans une rainure ménagée dans l'élément ou doigt mobile précité, perpendiculairement à l'axe de ce doigt.As for the aforementioned first end of the pivoting part, it enters a groove formed in the aforementioned movable element or finger, perpendicular to the axis of this finger.

Suivant une autre caractéristique de l'invention, l'élément ou le doigt mobile précité est monté coulissant dans un alésage tangent au corps de serrure et contenant un ressort.According to another characteristic of the invention, the above-mentioned movable element or finger is slidably mounted in a bore tangent to the lock body and containing a spring.

On ajoutera encore ici que l'élément ou doigt mobile précité, lorsqu'il est libéré, pénètre dans un élément de la serrure pour la bloquer.It will also be added here that the aforementioned movable element or finger, when released, enters an element of the lock to block it.

Le dispositif ci-dessus est avantageusement applicable sur une serrure de type quelconque destinée à équiper une porte quelconque, telle que par exemple une porte de coffre-fort ou d'armoire forte.The above device is advantageously applicable to a lock of any type intended to equip any door, such as for example a door to a safe or a strong cabinet.

Mais d'autres caractéristiques et avantages de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple et dans lesquels :

  • la figure 1 est une vue de face de l'entrée d'une serrure équipée d'un dispositif conforme aux principes de l'invention ; et
  • la figure 2 est une vue en élévation de côté et avec coupes partielles de la serrure visible sur la figure 1.
However, other characteristics and advantages of the invention will appear better in the detailed description which follows and which refers to the appended drawings, given solely by way of example and in which:
  • Figure 1 is a front view of the entrance to a lock equipped with a device according to the principles of the invention; and
  • FIG. 2 is a side elevation view and with partial sections of the lock visible in FIG. 1.

Suivant un exemple de réalisation, et en se reportant aux dessins annexés, un dispositif de sécurité à l'effraction d'une serrure selon l'invention comprend essentiellement une pièce 1 montée pivotante sur le corps de serrure 2 et comprenant une première extrémité 3 susceptible de retenir un doigt mobile 4, ainsi qu'une deuxième extrémité 5 qui est géométriquement identique à l'entrée 6 de la serrure recevant la clé, cette entrée étant prévue dans une partie formant nez de serrure 7 faisant saillie du corps de serrure 2, comme on le voit bien sur la figure 2.According to an exemplary embodiment, and with reference to the accompanying drawings, a security device for breaking in of a lock according to the invention essentially comprises a part 1 pivotally mounted on the lock body 2 and comprising a first end 3 capable of to retain a movable finger 4, as well as a second end 5 which is geometrically identical to the entry 6 of the lock receiving the key, this entry being provided in a part forming the lock nose 7 projecting from the lock body 2, as seen in Figure 2.

La pièce 1 présente la forme d'une patte rigide quelque peu déformée, comme on l'a montré en 8 sur la figure 2, et cette patte est montée pivotante sur le corps de serrure 2 par l'intermédiaire d'un petit axe tel que par exemple un clou cannelé 9 emmanché à force dans ledit corps. A la place de ce petit axe, on pourrait parfaitement prévoir sans sortir du cadre de l'invention, un petit téton ou analogue faisant saillie du corps 2 et venant de matière ou de moulage avec lui.The part 1 has the shape of a somewhat deformed rigid tab, as shown at 8 in FIG. 2, and this tab is pivotally mounted on the lock body 2 via a small axis such as for example a grooved nail 9 force fitted into said body. Instead of this minor axis, one could perfectly provide without departing from the scope of the invention, a small stud or the like projecting from the body 2 and coming from material or molding with it.

Ainsi, comme on le comprend, la pièce ou patte 1 pourra pivoter, à la manière d'un levier, dans un sens ou dans l'autre, autour de l'axe 9.Thus, as can be understood, the part or leg 1 can pivot, in the manner of a lever, in one direction or the other, around the axis 9.

Comme on le voit bien sur la figure 2, la deuxième extrémité 5 de la patte 1 peut se loger dans une fente 10 ménagée dans le nez de serrure 7, ladite fente étant orthogonale à l'axe 11 de l'entrée 6 de la serrure. Si l'on se reporte maintenant à la figure 1, on voit que la deuxième extrémité 5 de la patte 1 comporte une encoche débouchante 12 qui correspond exactement à une partie de l'entrée de serrure qui, suivant l'exemple représenté ici, présente une forme en étoile. Plus précisément, l'encoche 12 présente exactement les mêmes dimensions que l'une des branches 13 de l'étoile formant l'entrée de serrure 6 dans le nez 7.As can be seen in FIG. 2, the second end 5 of the tab 1 can be housed in a slot 10 formed in the lock nose 7, said slot being orthogonal to the axis 11 of the inlet 6 of the lock. Referring now to Figure 1, we see that the second end 5 of the lug 1 has a through notch 12 which corresponds exactly to a part of the lock entry which, according to the example shown here, has a star shape. More precisely, the notch 12 has exactly the same dimensions as one of the branches 13 of the star forming the lock entry 6 in the nose 7.

La première extrémité 3 de la patte pivotante 1 pénètre dans une rainure 14 ménagée en bout du doigt mobile 4, et ce perpendiculairement à l'axe 15 dudit doigt.The first end 3 of the pivoting tab 1 enters a groove 14 formed at the end of the movable finger 4, and this perpendicular to the axis 15 of said finger.

Comme il apparaît clairement sur les figures, le doigt mobile 4 est monté coulissant dans un alésage 16 tangent au corps de serrure 2 et contenant un ressort 17 sollicitant constamment le doigt 4 en position de sortie, c'est-à-dire vers la gauche de la figure 2.As can be clearly seen in the figures, the movable finger 4 is slidably mounted in a bore 16 tangent to the lock body 2 and containing a spring 17 constantly urging the finger 4 in the extended position, that is to say to the left in Figure 2.

L'extrémité 4a du doigt 4, retenue par la patte 1, fait saillie à l'extérieur d'une partie 18 du corps de serrure 2, cette partie formant en quelque sorte un carter pour le doigt 4. Le ressort 17 prend appui entre le fond du carter 18 et une bague ou analogue 19 solidaire du doigt mobile 4.The end 4a of the finger 4, retained by the tab 1, protrudes outside a part 18 of the lock body 2, this part forming a sort of housing for the finger 4. The spring 17 is supported between the bottom of the casing 18 and a ring or the like 19 secured to the movable finger 4.

L'extrémité libre 4b du doigt 4, lorsque celui-ci est libéré, pénètre dans l'orifice 20 d'un élément 21 de la serrure pour ainsi la bloquer. On notera ici que l'élément de serrure 21 a été représenté schématiquement, étant bien entendu qu'il peut s'agir d'un élément quelconque susceptible de commander les pênes de la serrure.The free end 4b of the finger 4, when the latter is released, enters the orifice 20 of an element 21 of the lock so as to block it. It will be noted here that the lock element 21 has been shown diagrammatically, it being understood that it may be any element capable of controlling the bolts of the lock.

Le fonctionnement du dispositif de l'invention se déduit de la description qui précède et sera brièvement expliqué ci-après.The operation of the device of the invention follows from the above description and will be briefly explained below.

En position de fonctionnement normal, la patte 1 se trouve dans la position représentée sur la figure 2 ou dans la position représentée en traits pleins sur la figure 1. C'est dire que l'extrémité 3 de la patte 1 retient le doigt délateur 4 en étant logée dans la rainure 14, et que l'encoche 12 à l'autre extrémité 5 de la patte 1 est en correspondance avec l'une des branches 13 de l'entrée de serrure 6. Autrement dit, lorsque l'utilisateur introduit sa clé dans l'orifice 22 de la porte 23 d'un coffre-fort par exemple, puis dans l'entrée 6 prévue dans le nez de serrure 7, il ne se passera rien. En effet, tant à l'introduction qu'au retrait de la clé, le panneton de cette clé coulissera dans les branches 13 de l'entrée de serrure 6, étant entendu que l'encoche 12 de la patte 1 ne gênera pas le passage de la clé.In the normal operating position, the lug 1 is in the position shown in FIG. 2 or in the position shown in solid lines in FIG. 1. This means that the end 3 of the lug 1 retains the informing finger 4 by being housed in the groove 14, and that the notch 12 at the other end 5 of the tab 1 is in correspondence with one of the branches 13 of the lock entry 6. In other words, when the user introduces his key in the orifice 22 of the door 23 of a safe for example, then in the entry 6 provided in the lock nose 7, nothing will happen. Indeed, both at the introduction and at the withdrawal of the key, the bit of this key will slide in the branches 13 of the lock entry 6, it being understood that the notch 12 of the tab 1 will not hinder the passage of the key.

Si une tentative est effectuée pour forcer le nez de serrure 7, en utilisant par exemple un outil de perforation, on comprend alors que ceci entraînera nécessairement la rotation de la patte 1 dans un sens ou dans l'autre autour de l'axe 9, de sorte que l'extrémité 3 de cette patte échappera à la rainure 14 du doigt mobile 4 qui viendra aussitôt pénétrer dans l'orifice 20 de l'élément 21 pour bloquer le mécanisme de serrure.If an attempt is made to force the lock nose 7, by using for example a perforation tool, it is then understood that this will necessarily cause the rotation of the tab 1 in one direction or the other around the axis 9, so that the end 3 of this tab will escape the groove 14 of the movable finger 4 which will immediately enter the orifice 20 of the element 21 to block the lock mechanism.

On a donc réalisé suivant l'invention un dispositif de sécurité à l'effraction qui est très compact, extrêmement simple et fiable et peut se monter sur le corps d'une serrure quelconque, un tel dispositif étant particulièrement sensible aux tentatives d'effraction sur le nez de serrure à l'aide d'outils de perforation par exemple.Thus, according to the invention, a burglary security device has been produced which is very compact, extremely simple and reliable and can be mounted on the body of any lock, such a device being particularly sensitive to burglary attempts on the lock nose using punching tools for example.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.

C'est ainsi que le dispositif de l'invention peut être facilement adapté à une entrée de serrure quelconque, à condition tout simplement de prévoir une encoche 12 à l'extrémité de la patte commandant le doigt délateur, qui soit d'une forme géométriquement identique à au moins une partie de l'orifice d'entrée dans le nez de la serrure.Thus, the device of the invention can be easily adapted to any lock entry, provided that there is simply a notch 12 at the end of the tab controlling the informing finger, which is geometrically shaped. identical to at least part of the entry hole in the nose of the lock.

L'invention comprend donc tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.The invention therefore includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.

Claims (8)

1. A safety device preventing from lock-breaking and of the type comprising a retained movable element, such as for example a finger (4), acted upon by a return mecanism and liable to get free in case of a breach of close aiming at breaking the locking mechanism, characterized in that a part (1) is mounted pivoting on the body of the lock (2) and one extremity or first extremity (3) of which, retains the said element or movable finger (4), while the other extremity, or second extremity (5) of the said part, is geometrically identical with at least a part of the keyhole (6) receiving the key.
2. A device according to claim 1, characterized in that the second extremity (5) of the pivoting part (1) can enter a slit (10) provided in the nose of the lock (7) comprising the said keyhole (6) and jutting out from the body of the lock (2), this slit (10) being orthogonal to the axis (11) of the keyhole (6).
3. A device according to claim 1 or 2, characterized in that the second extremity (5) of the pivoting part comprises at least a notch (12) which exactly fits at least a part of the keyhole (6) and of the web.
4. A device according to one of claims 1 to 3, characterized in that the said part is mounted pivoting on the body of the lock (2) thanks to a pivoting axis inserted in the said body or attached and fixed to it.
5. A device according to one of the foregoing claims characterized in that the first extremity (3) of the pivoting part enters a slot (14) provided in the said element or movable finger (4), perpendicularly to its axis (15).
6. A device according to claim 1 or 5, characterized in that the said element or movable finger (4) is mounted sliding in a bore (16) tangent to the body of the lock (2) and comprising a spring (17).
7. A device according to one of the foregoing claims, characterized in that the said element or movable finger (4), when it is freed, enters an element (21) of the lock so as to block it up.
8. A door provided with a device according to one of claims 1 to 7.
EP85400275A 1984-02-20 1985-02-15 Safety device for preventing tampering with locks and door equipped therewith Expired EP0153892B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402523A FR2559823B1 (en) 1984-02-20 1984-02-20 SECURITY DEVICE FOR BREAKING A LOCK AND DOOR EQUIPPED WITH THIS DEVICE
FR8402523 1984-02-20

Publications (2)

Publication Number Publication Date
EP0153892A1 EP0153892A1 (en) 1985-09-04
EP0153892B1 true EP0153892B1 (en) 1986-11-12

Family

ID=9301179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400275A Expired EP0153892B1 (en) 1984-02-20 1985-02-15 Safety device for preventing tampering with locks and door equipped therewith

Country Status (4)

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US (1) US4631935A (en)
EP (1) EP0153892B1 (en)
DE (1) DE3560020D1 (en)
FR (1) FR2559823B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644312C2 (en) * 1976-10-01 1978-11-23 Neiman Gmbh + Co Kg, 5600 Wuppertal Device for locking a cylinder lock-operated locking bolt in a locked position
EP0034019B1 (en) * 1980-02-08 1989-06-07 Chubb & Son's Lock and Safe Company Limited Locking mechanism for the doors of security enclosures
US4512165A (en) * 1980-08-11 1985-04-23 La Gard, Inc. High security padlock
DE3131558C1 (en) * 1981-08-08 1983-02-24 Neiman Gmbh & Co Kg, 5657 Haan Steering lock for a motor vehicle
FR2542033B1 (en) * 1983-03-03 1985-06-28 Rhone Isere KEY CHANNEL BUTTERFLY CAM LOCK

Also Published As

Publication number Publication date
FR2559823B1 (en) 1986-07-04
DE3560020D1 (en) 1987-01-02
EP0153892A1 (en) 1985-09-04
US4631935A (en) 1986-12-30
FR2559823A1 (en) 1985-08-23

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