EP1580356A1 - Device for the protection of a door cylinder lock - Google Patents

Device for the protection of a door cylinder lock Download PDF

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Publication number
EP1580356A1
EP1580356A1 EP05002128A EP05002128A EP1580356A1 EP 1580356 A1 EP1580356 A1 EP 1580356A1 EP 05002128 A EP05002128 A EP 05002128A EP 05002128 A EP05002128 A EP 05002128A EP 1580356 A1 EP1580356 A1 EP 1580356A1
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EP
European Patent Office
Prior art keywords
trunk
protective device
barrel
armor
recess
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.)
Granted
Application number
EP05002128A
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German (de)
French (fr)
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EP1580356B1 (en
Inventor
Alain Lartisien
Thierry Farcy
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Bricard SAS
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Bricard SAS
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Publication date
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Publication of EP1580356A1 publication Critical patent/EP1580356A1/en
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Publication of EP1580356B1 publication Critical patent/EP1580356B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
    • E05B9/084—Fastening of lock cylinders, plugs or cores
    • 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
    • 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

Definitions

  • the present invention relates, on the one hand, to a device for protection for a door lock comprising a barrel provided with a bit intended to be positioned inside a chest, and secondly, to a door lock equipped with such a protective device.
  • Patent Application FR 2 708 025 describes a door lock equipped with a protective device of this type.
  • This protection device includes a shield capable of covering a portion of the barrel opening the outside of the room to be protected, a blocking member adapted to grip a part the barrel opening inside the room to be protected, and fixing screws intended to cross the trunk and allow the attachment of the shield to the locking member.
  • the shield extends axially two studs located on either side of a longitudinal housing provided for receive the barrel. These pads each have a tapped axial hole for receive one of the fixing screws, and are bordered by parallel faces defining between them a passage in extension of the lower part of the longitudinal housing. Moreover, these parallel faces are prolonged according to cylindrical surfaces with circular section for the movement of the bit.
  • the Burglar can only access the barrel by breaking the shield.
  • a protective device has disadvantages residing in the fact that, on the one hand, the chest must have an internal volume sufficient to allow the housing of the studs, and secondly, the cylindrical surfaces of the parallel faces of the studs are relatively difficult to achieve.
  • the present invention aims to overcome the disadvantages cited above, and for this purpose consists of a protective device for a door lock comprising a barrel provided with a bit provided for be positioned inside a chest, said protection device comprising a cuirass capable of covering a first part of the barrel opening to the outside of the room to be protected, a blocking element able to grip a second part of the barrel opening inside the premises to be protected, and fastening means provided for crossing the trunk and allowing attachment from the cuirass to the locking element, said armor being intended to come to contact of the trunk face located outside the room to be protected by via a rear face equipped with at least two lugs located in the extension of the cuirass and each traversed by an axial bore, characterized in that each of these pins is adapted to be housed in a corresponding recess dug into the thickness of the trunk face located opposite the rear face of the cuirass.
  • these lugs being designed so as not to penetrate the trunk, and therefore to remain outside the trunk, it follows, on the one hand, that he it is no longer necessary to provide a clearance inside the trunk, and on the other hand, that these lugs can no longer interfere with the travel of the bit.
  • These pins are therefore small and can be fashioned very easily, which further reduces the total mass and the cost price of the cuirass.
  • each recess comprises a bottom crossed by an orifice intended to be located opposite the axial bore presented by the corresponding ergot.
  • the rear face of the cuirass comprises two lugs arranged on either side of a central opening adapted to the section of the barrel.
  • the backside in part bottom of the breastplate, is provided with a nose designed to expand under the chest.
  • This nose preferably has a substantially equal length to the thickness of the trunk, and has an axial bore.
  • the chest has a clearance for the passage of the nose.
  • a recess is dug in the lower part of the cuirass in the vicinity of his face back, and this recess is filled by means of a hardness material more high. It will be very difficult for the burglar to pierce the cuirass in lower part in order to reach the fastening means passing through the bores axial spurs.
  • the blocking element is advantageously realized in the form of a washer having, on the one hand, a central perforation adapted to the section of the barrel, and secondly, orifices provided for the passage of the fastening means.
  • the present invention also relates to a lock of door comprising a trunk crossed by a barrel provided with a bit rotational mobile housed in the trunk, characterized in that it comprises a protection device according to the invention.
  • the trunk is preferably consisting of two flanges assembled to one another, and each flange advantageously decomposes, on the one hand, into a first element covering the upper part of the chest, and secondly, in a second Reinforced hardness element covering the lower part of the trunk.
  • a door lock 1 as shown in Figures 1, 2 and 4, comprises a box 2 made with two flanges 3 assembled to each other. This chest 2 is attached to a headrest 4, and encloses parts well known to those skilled in the art usually used for locking and unlocking a locking bolt 5.
  • Each flange 3 comprises, in the lower part, an opening central unit 6 adapted to the section of a barrel 7, the latter presenting a first part 8 and a second part 9 separated from each other by a bit 10 median moving in rotation.
  • Each flange 3 also includes a clearance 11 under the central opening 6.
  • each flange 3 has two recesses 12 arranged on either side of the central opening 6, each recess 12 being hollowed into the thickness of the flange 3 and having a bottom 13 crossed through an orifice 14.
  • the bit 10 is housed in said trunk 2, and the first part 8 and the second part 9 of the cylinder 7 project respectively on one side and the other of said 2.
  • the first part 8 is intended to protrude outside the room to be protected (not shown), and that the second part 9 is provided to protrude inside the room to protect.
  • the bit 10 can then force the bolt of condemnation 5 to translate under the action of a key 40 introduced into the barrel 7.
  • a cuirass 15 is made of a material at the hardness higher than that of the material in which the barrel 7 is shaped, and has a front face 16 intended to be oriented outwards, a side wall 17 designed to cover the first portion 8 of the barrel 7, and a rear face 18 intended to come into contact with the flange 3 located outside the local to protect.
  • each of these two lugs 19 of thin axial axis projects partially bottom of the rear face 18 of the armor 15, and are arranged on both sides. other than a central opening 20 adapted to the first part 8 of the barrel 7.
  • each of these two lugs 19 is traversed by an axial bore 21 tapped.
  • the rear face 18 is provided with a nose 22 whose length is substantially equal to the thickness of the trunk 2. This nose 22 is also traversed by a tapped axial bore 24.
  • each of the two lugs 19 is housed in the corresponding recess 12 of the flange 3 located opposite the armor 15, and the nose 22 passes through the clearance 11 provided under the central opening 6 of the 2.
  • each lug 19 abuts against the bottom 13 of the recess 12, and the axial bore 21 of each lug 19 is disposed in view of the orifice 14 presented by said corresponding bottom 13.
  • a blocking element 25 is then reported around the second part 9 of the cylinder 7.
  • This blocking element 25 is produced under the form of a washer having a central opening 27 adapted to the section barrel 7, two orifices 28 side disposed on either side of the opening central 27, and an orifice 29 located below said central opening 27.
  • Each of the two orifices 28 is placed in alignment with, on the one hand, holes 14 presented by the recesses 12, and secondly, bores axial 21 presented by the pins 19.
  • the orifice 29 is placed in the alignment of the axial bore 24 presented by the nose 22.
  • a fixing screw 30 provided with a head 31 can then be inserted in each of the orifices 28, 29. As shown in FIG. 30 are respectively screwed into the axial bores 21 of the 19 and in the axial bore 24 of the nose 22, and finally allow to press the locking element 25 against the flange 3 which faces it.
  • a protection device is therefore particularly advantageous since, in addition to the fact that the lugs 19 are located outside the trunk 2 and are therefore not likely to interfere with the deflection of the bit 10, the fixing screws 30 which ensure the attachment of the armor 15 to the locking element 25 are not directly accessible from the outside. Indeed, these fastening screws 30 do not can be damaged only to the extent that the burglar has previously destroyed the pins 19 which are masked by the 12. In addition, even in this case, the armor 15 remains solidary of the locking element 25 through the nose 22 which extends under the chest 2. Finally, the armor 15 is protected against attempts of tearing downwardly and upwardly, respectively, with the lugs 19 held blocked in the recesses 12, and the nose 22 housed in the clearance 11.
  • a recess is dug in the lower part of the cuirass 15 in the vicinity of its rear face 18, and this recess is filled by means of a material 32 with higher hardness that of the material used to shape the cuirass 15.
  • the trunk 2 is advantageously made from two flanges 3 each provided with recesses 12. Indeed, this allows ensure that, regardless of the final location of the door lock 1, a cuirass 15 can be reported on the part of the barrel 7 located outside the premises to be protected.
  • each flange 3 is advantageously decomposes, on the one hand, into a first element 3a covering the upper part of the box 2, and secondly, in a second element 3b reinforced hardness covering the lower part of the trunk 2.
  • the second element 3b comprises, at the level its inner face, protuberances 33 directed towards the inside of the trunk 2 and designed to frame certain parts of the lock 1 to protect them effectively.
  • These pieces are the pieces traditionally used for allow the translational movement of the locking bolt 5 during the rotation of the key 40, and include in particular the throat (no shown) which cooperates with the tail of the locking bolt 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The device has a turret with a casement bolt (10) positioned inside a case (2). An armor plate (15) and a blocking unit (25) cover parts (8, 9) of the turret. A fixing screw (30) traverses the case and fastens the plate to the unit (25). The plate contacts with a side of the case via a rear side equipped of two snugs (19) that are housed in a recess (17) drilled in thickness of the case side with respect to the rear side of the plate. An independent claim is also included for a door lock comprising a safety device.

Description

La présente invention se rapporte, d'une part, à un dispositif de protection pour une serrure de porte comprenant un barillet muni d'un panneton prévu pour être positionné à l'intérieur d'un coffre, et d'autre part, à une serrure de porte équipée d'un tel dispositif de protection.The present invention relates, on the one hand, to a device for protection for a door lock comprising a barrel provided with a bit intended to be positioned inside a chest, and secondly, to a door lock equipped with such a protective device.

Bien souvent, un cambrioleur désirant pénétrer à l'intérieur d'un local commence par fracturer le barillet afin de l'extraire du coffre. Une fois que cette tâche a été accomplie, le cambrioleur a accès aux organes internes de la serrure et peut donc facilement procéder au déverrouillage du pêne jusqu'alors logé dans la gâche fixée dans le chambranle de la porte à protéger.Very often, a burglar wishing to penetrate inside a local begins by fracturing the barrel to extract it from the chest. Once this task has been accomplished, the burglar has access to the internal organs of the lock and can easily proceed to unlock the bolt until then housed in the keeper fixed in the door jamb to be protected.

Pour lutter contre de telles effractions, il est déjà connu de recouvrir la partie du barillet faisant saillie à l'extérieur du local à protéger à l'aide d'un boítier réalisé dans un matériau à la dureté plus élevée que celle du matériau dans lequel est façonné le barillet. Par conséquent, le cambrioleur sera retardé dans sa tentative d'effraction puisqu'il devra tout d'abord tronçonner ce boítier avant de pouvoir fracturer le barillet.To fight against such break-ins, it is already known to cover the part of the barrel protruding outside the space to be protected by means of a housing made of a material with a higher hardness than the material in which the barrel is shaped. Therefore, the burglar will be delayed in his attempted break-in since he will first have to cut this box before he could break the barrel.

La demande de brevet FR 2 708 025 décrit une serrure de porte équipée d'un dispositif de protection de ce type. Ce dispositif de protection comprend un bouclier apte à recouvrir une partie du barillet débouchant à l'extérieur du local à protéger, un organe de blocage apte à enserrer une partie du barillet débouchant à l'intérieur du local à protéger, et des vis de fixation prévues pour traverser le coffre et permettre le rattachement du bouclier à l'organe de blocage. Plus précisément, le bouclier se prolonge axialement par deux plots situés de part et d'autre d'un logement longitudinal prévu pour recevoir le barillet. Ces plots sont chacun dotés d'un trou axial taraudé pour recevoir l'une des vis de fixation, et sont bordés par des faces parallèles définissant entre elles un passage en prolongement de la partie inférieure du logement longitudinal. De plus, ces faces parallèles se prolongent selon des surfaces cylindriques à section circulaire pour le débattement du panneton. Ainsi, les vis de fixation n'étant pas accessibles depuis l'extérieur du local, le cambrioleur ne peut accéder au barillet qu'en fracturant le bouclier. Cependant, un tel dispositif de protection présente des inconvénients résidant dans le fait que, d'une part, le coffre doit posséder un volume interne suffisant pour permettre le logement des plots, et d'autre part, les surfaces cylindriques des faces parallèles des plots sont relativement délicates à réaliser.Patent Application FR 2 708 025 describes a door lock equipped with a protective device of this type. This protection device includes a shield capable of covering a portion of the barrel opening the outside of the room to be protected, a blocking member adapted to grip a part the barrel opening inside the room to be protected, and fixing screws intended to cross the trunk and allow the attachment of the shield to the locking member. More precisely, the shield extends axially two studs located on either side of a longitudinal housing provided for receive the barrel. These pads each have a tapped axial hole for receive one of the fixing screws, and are bordered by parallel faces defining between them a passage in extension of the lower part of the longitudinal housing. Moreover, these parallel faces are prolonged according to cylindrical surfaces with circular section for the movement of the bit. Thus, the fixing screws not being accessible from outside the room, the Burglar can only access the barrel by breaking the shield. However, such a protective device has disadvantages residing in the fact that, on the one hand, the chest must have an internal volume sufficient to allow the housing of the studs, and secondly, the cylindrical surfaces of the parallel faces of the studs are relatively difficult to achieve.

La présente invention a pour but de remédier aux inconvénients cités précédemment, et consiste pour cela en un dispositif de protection pour une serrure de porte comprenant un barillet muni d'un panneton prévu pour être positionné à l'intérieur d'un coffre, ledit dispositif de protection comprenant une cuirasse apte à recouvrir une première partie du barillet débouchant à l'extérieur du local à protéger, un élément de blocage apte à enserrer une seconde partie du barillet débouchant à l'intérieur du local à protéger, et des moyens de fixation prévus pour traverser le coffre et permettre le rattachement de la cuirasse à l'élément de blocage, ladite cuirasse étant destinée à venir au contact de la face du coffre située à l'extérieur du local à protéger par l'intermédiaire d'une face arrière équipée d'au moins deux ergots situés dans le prolongement de la cuirasse et traversés chacun par un alésage axial, caractérisé en ce que chacun de ces ergots est apte à venir se loger dans un renfoncement correspondant creusé dans l'épaisseur de la face du coffre située en regard de la face arrière de la cuirasse.The present invention aims to overcome the disadvantages cited above, and for this purpose consists of a protective device for a door lock comprising a barrel provided with a bit provided for be positioned inside a chest, said protection device comprising a cuirass capable of covering a first part of the barrel opening to the outside of the room to be protected, a blocking element able to grip a second part of the barrel opening inside the premises to be protected, and fastening means provided for crossing the trunk and allowing attachment from the cuirass to the locking element, said armor being intended to come to contact of the trunk face located outside the room to be protected by via a rear face equipped with at least two lugs located in the extension of the cuirass and each traversed by an axial bore, characterized in that each of these pins is adapted to be housed in a corresponding recess dug into the thickness of the trunk face located opposite the rear face of the cuirass.

Ainsi, ces ergots étant conçus de façon à ne pas pénétrer dans le coffre, et donc à demeurer à l'extérieur du coffre, il en découle, d'une part, qu'il n'est plus nécessaire de prévoir un dégagement à l'intérieur du coffre, et d'autre part, que ces ergots ne peuvent plus gêner le débattement du panneton. Ces ergots sont donc de petites dimensions et peuvent être façonnés très facilement, ce qui permet en outre de réduire la masse totale et le coût de revient de la cuirasse.Thus, these lugs being designed so as not to penetrate the trunk, and therefore to remain outside the trunk, it follows, on the one hand, that he it is no longer necessary to provide a clearance inside the trunk, and on the other hand, that these lugs can no longer interfere with the travel of the bit. These pins are therefore small and can be fashioned very easily, which further reduces the total mass and the cost price of the cuirass.

Avantageusement, chaque renfoncement comporte un fond traversé par un orifice prévu pour être situé en regard de l'alésage axial présenté par l'ergot correspondant.Advantageously, each recess comprises a bottom crossed by an orifice intended to be located opposite the axial bore presented by the corresponding ergot.

Avantageusement encore, la face arrière de la cuirasse comprend deux ergots disposés de part et d'autre d'une ouverture centrale adaptée à la section du barillet.Advantageously, the rear face of the cuirass comprises two lugs arranged on either side of a central opening adapted to the section of the barrel.

Selon un mode de réalisation préférée de l'invention, en partie basse de la cuirasse, la face arrière est pourvue d'un nez conçu pour s'étendre sous le coffre. Ce nez possède de préférence une longueur sensiblement égale à l'épaisseur du coffre, et est doté d'un alésage axial. Préférentiellement encore, le coffre présente un dégagement pour le passage du nez.According to a preferred embodiment of the invention, in part bottom of the breastplate, the backside is provided with a nose designed to expand under the chest. This nose preferably has a substantially equal length to the thickness of the trunk, and has an axial bore. Preferably again, the chest has a clearance for the passage of the nose.

Selon une variante de réalisation préférée de l'invention, un évidement est creusé en partie basse de la cuirasse au voisinage de sa face arrière, et cet évidement est comblé au moyen d'un matériau de dureté plus élevée. Il sera donc très difficile pour le cambrioleur de percer la cuirasse en partie basse afin d'atteindre les moyens de fixation traversant les alésages axiaux des ergots.According to a preferred embodiment of the invention, a recess is dug in the lower part of the cuirass in the vicinity of his face back, and this recess is filled by means of a hardness material more high. It will be very difficult for the burglar to pierce the cuirass in lower part in order to reach the fastening means passing through the bores axial spurs.

Par ailleurs, l'élément de blocage est avantageusement réalisé sous la forme d'une rondelle présentant, d'une part, une perforation centrale adaptée à la section du barillet, et d'autre part, des orifices prévus pour le passage des moyens de fixation.Moreover, the blocking element is advantageously realized in the form of a washer having, on the one hand, a central perforation adapted to the section of the barrel, and secondly, orifices provided for the passage of the fastening means.

La présente invention se rapporte également à une serrure de porte comprenant un coffre traversé par un barillet pourvu d'un panneton mobile en rotation logé dans le coffre, caractérisé en ce qu'elle comprend un dispositif de protection selon l'invention.The present invention also relates to a lock of door comprising a trunk crossed by a barrel provided with a bit rotational mobile housed in the trunk, characterized in that it comprises a protection device according to the invention.

De plus, dans une serrure de porte selon l'invention, le coffre est de préférence constitué à partir de deux flasques assemblés l'un à l'autre, et chaque flasque se décompose avantageusement, d'une part, en un premier élément recouvrant la partie haute du coffre, et d'autre part, en un second élément à dureté renforcée recouvrant la partie basse du coffre.In addition, in a door lock according to the invention, the trunk is preferably consisting of two flanges assembled to one another, and each flange advantageously decomposes, on the one hand, into a first element covering the upper part of the chest, and secondly, in a second Reinforced hardness element covering the lower part of the trunk.

L'invention sera mieux comprise à l'aide de la description détaillée qui est exposée ci-dessous en regard du dessin annexé dans lequel :

  • Les figures 1 et 2 sont des vues avant et arrière en perspective éclatée d'une serrure de porte équipée d'un dispositif de protection selon l'invention.
  • La figure 3 est une vue en perspective à échelle agrandie d'une cuirasse associée à la serrure de porte représentée à la figure 1.
  • La figure 4 est une vue en coupe longitudinale de la serrure de porte représentée à la figure 1.
  • La figure 5 est une vue en perspective à échelle agrandie de deux flasques constitutifs d'un coffre pour une autre serrure de porte selon l'invention.
  • La figure 6 est une vue en perspective éclatée d'une serrure de porte selon l'invention équipée des deux flasques représentés à la figure 5.
    • The invention will be better understood with the aid of the detailed description which is set out below with reference to the appended drawing in which:
  • Figures 1 and 2 are front and rear views in exploded perspective of a door lock equipped with a protection device according to the invention.
  • Figure 3 is an enlarged perspective view of a breastplate associated with the door lock shown in Figure 1.
  • Figure 4 is a longitudinal sectional view of the door lock shown in Figure 1.
  • Figure 5 is an enlarged perspective view of two flanges constituting a chest for another door lock according to the invention.
  • FIG. 6 is an exploded perspective view of a door lock according to the invention equipped with the two flanges represented in FIG.

    • Une serrure de porte 1 selon l'invention, telle que représentée aux figures 1, 2 et 4, comporte un coffre 2 réalisé à l'aide de deux flasques 3 assemblés l'un à l'autre. Ce coffre 2 est rattaché à une têtière 4, et renferme les pièces bien connues de l'homme du métier habituellement utilisées pour assurer le verrouillage et le déverrouillage d'un pêne 5 de condamnation.A door lock 1 according to the invention, as shown in Figures 1, 2 and 4, comprises a box 2 made with two flanges 3 assembled to each other. This chest 2 is attached to a headrest 4, and encloses parts well known to those skilled in the art usually used for locking and unlocking a locking bolt 5.

    Chaque flasque 3 comporte, en partie basse, une ouverture centrale 6 adaptée à la section d'un barillet 7, ce dernier présentant une première partie 8 et une seconde partie 9 séparées l'une de l'autre par un panneton 10 médian mobile en rotation. Chaque flasque 3 comporte également un dégagement 11 sous l'ouverture centrale 6.Each flange 3 comprises, in the lower part, an opening central unit 6 adapted to the section of a barrel 7, the latter presenting a first part 8 and a second part 9 separated from each other by a bit 10 median moving in rotation. Each flange 3 also includes a clearance 11 under the central opening 6.

    De plus, chaque flasque 3 présente deux renfoncements 12 disposés de part et d'autre de l'ouverture centrale 6, chaque renfoncement 12 étant creusé dans l'épaisseur du flasque 3 et comportant un fond 13 traversé par un orifice 14.In addition, each flange 3 has two recesses 12 arranged on either side of the central opening 6, each recess 12 being hollowed into the thickness of the flange 3 and having a bottom 13 crossed through an orifice 14.

    Une fois que le barillet 7 est correctement engagé dans le coffre 2, le panneton 10 est logé dans ledit coffre 2, et la première partie 8 et la seconde partie 9 du barillet 7 font saillie respectivement d'un côté et de l'autre dudit coffre 2. Nous supposerons, dans la suite de l'exposé, que la première partie 8 est prévue pour faire saillie à l'extérieur du local à protéger (non représenté), et que la seconde partie 9 est prévue pour faire saillie à l'intérieur du local à protéger.Once the barrel 7 is correctly engaged in the trunk 2, the bit 10 is housed in said trunk 2, and the first part 8 and the second part 9 of the cylinder 7 project respectively on one side and the other of said 2. We will assume, in the rest of the presentation, that the first part 8 is intended to protrude outside the room to be protected (not shown), and that the second part 9 is provided to protrude inside the room to protect.

    De façon classique, le panneton 10 peut alors forcer le pêne de condamnation 5 à se translater sous l'action d'une clé 40 introduite dans le barillet 7.In a conventional manner, the bit 10 can then force the bolt of condemnation 5 to translate under the action of a key 40 introduced into the barrel 7.

    Par ailleurs, une cuirasse 15 est réalisée dans un matériau à la dureté plus élevée que celle du matériau dans lequel est façonné le barillet 7, et présente une face avant 16 destinée à être orientée vers l'extérieur, une paroi latérale 17 conçue pour recouvrir la première partie 8 du barillet 7, et une face arrière 18 destinée à venir au contact du flasque 3 situé à l'extérieur du local à protéger.Furthermore, a cuirass 15 is made of a material at the hardness higher than that of the material in which the barrel 7 is shaped, and has a front face 16 intended to be oriented outwards, a side wall 17 designed to cover the first portion 8 of the barrel 7, and a rear face 18 intended to come into contact with the flange 3 located outside the local to protect.

    Plus précisément, en se reportant notamment à la figure 3, on observe que deux ergots 19 axiaux de faible épaisseur font saillie en partie basse de la face arrière 18 de la cuirasse 15, et sont disposés de part et d'autre d'une ouverture centrale 20 adaptée à la première partie 8 du barillet 7. De plus, chacun de ces deux ergots 19 est traversé par un alésage axial 21 taraudé.More precisely, referring in particular to FIG. observes that two lugs 19 of thin axial axis project partially bottom of the rear face 18 of the armor 15, and are arranged on both sides. other than a central opening 20 adapted to the first part 8 of the barrel 7. In addition, each of these two lugs 19 is traversed by an axial bore 21 tapped.

    Par ailleurs, en partie basse de la cuirasse 15, et plus précisément sous l'ouverture centrale 20, la face arrière 18 est pourvue d'un nez 22 dont la longueur est sensiblement égale à l'épaisseur du coffre 2. Ce nez 22 est également traversé par un alésage axial 24 taraudé.Moreover, in the lower part of the cuirass 15, and more precisely under the central opening 20, the rear face 18 is provided with a nose 22 whose length is substantially equal to the thickness of the trunk 2. This nose 22 is also traversed by a tapped axial bore 24.

    La cuirasse 15 est alors rapportée sur la première partie 8 du barillet 7. Plus précisément, chacun des deux ergots 19 vient se loger dans le renfoncement 12 correspondant du flasque 3 situé face à la cuirasse 15, et le nez 22 traverse le dégagement 11 prévu sous l'ouverture centrale 6 du coffre 2. Ce faisant, chaque ergot 19 vient en butée contre le fond 13 du renfoncement 12, et l'alésage axial 21 de chaque ergot 19 est disposé en regard de l'orifice 14 présenté par ledit fond 13 correspondant.The cuirass 15 is then reported on the first part 8 of the 7. Specifically, each of the two lugs 19 is housed in the corresponding recess 12 of the flange 3 located opposite the armor 15, and the nose 22 passes through the clearance 11 provided under the central opening 6 of the 2. By doing this, each lug 19 abuts against the bottom 13 of the recess 12, and the axial bore 21 of each lug 19 is disposed in view of the orifice 14 presented by said corresponding bottom 13.

    Un élément de blocage 25 est ensuite rapporté autour de la seconde partie 9 du barillet 7. Cet élément de blocage 25 est réalisé sous la forme d'une rondelle présentant une ouverture centrale 27 adaptée à la section du barillet 7, deux orifices 28 latéraux disposés de part et d'autre de l'ouverture centrale 27, et un orifice 29 situé en dessous de ladite ouverture centrale 27. Chacun des deux orifices 28 est placé dans l'alignement, d'une part, des orifices 14 présentés par les renfoncements 12, et d'autre part, des alésages axiaux 21 présentés par les ergots 19. De même, l'orifice 29 est placé dans l'alignement de l'alésage axial 24 présenté par le nez 22.A blocking element 25 is then reported around the second part 9 of the cylinder 7. This blocking element 25 is produced under the form of a washer having a central opening 27 adapted to the section barrel 7, two orifices 28 side disposed on either side of the opening central 27, and an orifice 29 located below said central opening 27. Each of the two orifices 28 is placed in alignment with, on the one hand, holes 14 presented by the recesses 12, and secondly, bores axial 21 presented by the pins 19. Similarly, the orifice 29 is placed in the alignment of the axial bore 24 presented by the nose 22.

    Une vis de fixation 30 munie d'une tête 31 peut alors être insérée dans chacun des orifices 28, 29. Comme représenté à la figure 4, ces vis de fixation 30 sont respectivement vissées dans les alésages axiaux 21 des ergots 19 et dans l'alésage axial 24 du nez 22, et permettent finalement de plaquer l'élément de blocage 25 contre le flasque 3 qui lui fait face.A fixing screw 30 provided with a head 31 can then be inserted in each of the orifices 28, 29. As shown in FIG. 30 are respectively screwed into the axial bores 21 of the 19 and in the axial bore 24 of the nose 22, and finally allow to press the locking element 25 against the flange 3 which faces it.

    Un dispositif de protection selon l'invention est donc particulièrement avantageux puisque, outre le fait que les ergots 19 sont situés à l'extérieur du coffre 2 et ne sont donc pas susceptibles de gêner le débattement du panneton 10, les vis de fixation 30 qui assurent le rattachement de la cuirasse 15 à l'élément de blocage 25 ne sont pas directement accessibles depuis l'extérieur. En effet, ces vis de fixation 30 ne peuvent être endommagées que dans la mesure où le cambrioleur a préalablement détruit les ergots 19 qui sont masqués par les renfoncements 12. De plus, même dans ce cas, la cuirasse 15 reste solidaire de l'élément de blocage 25 par l'intermédiaire du nez 22 qui s'étend sous le coffre 2. Enfin, la cuirasse 15 est protégée contre les tentatives d'arrachement vers le bas et vers le haut grâce, respectivement, aux ergots 19 maintenus bloqués dans les renfoncements 12, et au nez 22 logé dans le dégagement 11.A protection device according to the invention is therefore particularly advantageous since, in addition to the fact that the lugs 19 are located outside the trunk 2 and are therefore not likely to interfere with the deflection of the bit 10, the fixing screws 30 which ensure the attachment of the armor 15 to the locking element 25 are not directly accessible from the outside. Indeed, these fastening screws 30 do not can be damaged only to the extent that the burglar has previously destroyed the pins 19 which are masked by the 12. In addition, even in this case, the armor 15 remains solidary of the locking element 25 through the nose 22 which extends under the chest 2. Finally, the armor 15 is protected against attempts of tearing downwardly and upwardly, respectively, with the lugs 19 held blocked in the recesses 12, and the nose 22 housed in the clearance 11.

    Afin de renforcer encore le dispositif de protection selon l'invention, et comme représenté plus particulièrement à la figure 3, un évidement est creusé en partie basse de la cuirasse 15 au voisinage de sa face arrière 18, et cet évidement est comblé au moyen d'un matériau 32 à la dureté plus élevée que celle du matériau utilisé pour façonner la cuirasse 15. In order to further strengthen the protection device according to the invention, and as shown more particularly in FIG. 3, a recess is dug in the lower part of the cuirass 15 in the vicinity of its rear face 18, and this recess is filled by means of a material 32 with higher hardness that of the material used to shape the cuirass 15.

    Par ailleurs, le coffre 2 est avantageusement réalisé à partir de deux flasques 3 pourvus chacun de renfoncements 12. En effet, cela permet d'assurer que, quel que soit l'emplacement final de la serrure de porte 1, une cuirasse 15 pourra être rapportée sur la partie du barillet 7 située à l'extérieur du local à protéger.Moreover, the trunk 2 is advantageously made from two flanges 3 each provided with recesses 12. Indeed, this allows ensure that, regardless of the final location of the door lock 1, a cuirass 15 can be reported on the part of the barrel 7 located outside the premises to be protected.

    Enfin, comme représenté aux figures 5 et 6, chaque flasque 3 est se décompose avantageusement, d'une part, en un premier élément 3a recouvrant la partie haute du coffre 2, et d'autre part, en un second élément 3b à dureté renforcée recouvrant la partie basse du coffre 2. Comme représenté plus particulièrement à la figure 6, le second élément 3b comporte, au niveau de sa face interne, des protubérances 33 dirigées vers l'intérieur du coffre 2 et prévues pour encadrer certaines pièces de la serrure 1 en vue de les protéger efficacement. Ces pièces sont les pièces traditionnellement employées pour permettre le déplacement en translation du pêne de condamnation 5 lors de la mise en rotation de la clé 40, et comprennent notamment la gorge (non représentée) qui coopère avec la queue du pêne de condamnation 5.Finally, as shown in FIGS. 5 and 6, each flange 3 is advantageously decomposes, on the one hand, into a first element 3a covering the upper part of the box 2, and secondly, in a second element 3b reinforced hardness covering the lower part of the trunk 2. As shown more particularly in FIG. 6, the second element 3b comprises, at the level its inner face, protuberances 33 directed towards the inside of the trunk 2 and designed to frame certain parts of the lock 1 to protect them effectively. These pieces are the pieces traditionally used for allow the translational movement of the locking bolt 5 during the rotation of the key 40, and include in particular the throat (no shown) which cooperates with the tail of the locking bolt 5.

    Bien que l'invention ait été décrite en liaison avec des exemples particuliers de réalisation, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention.Although the invention has been described in connection with examples particular achievements, it is quite obvious that it is by no means that it includes all the technical equivalents of the means described as well as their combinations if they fall within the scope of the invention.

    Claims (10)

    Dispositif de protection pour une serrure de porte (1) comprenant un barillet (7) muni d'un panneton (10) prévu pour être positionné à l'intérieur d'un coffre (2), ledit dispositif de protection comprenant une cuirasse (15) apte à recouvrir une première partie (8) du barillet débouchant à l'extérieur du local à protéger, un élément de blocage (25) apte à enserrer une seconde partie (9) du barillet débouchant à l'intérieur du local à protéger, et des moyens de fixation (30) prévus pour traverser le coffre et permettre le rattachement de la cuirasse à l'élément de blocage, ladite cuirasse étant destinée à venir au contact de la face du coffre située à l'extérieur du local à protéger par l'intermédiaire d'une face arrière (18) équipée d'au moins deux ergots (19) situés dans le prolongement de la cuirasse et traversés chacun par un alésage axial (21), caractérisé en ce que chacun de ces ergots est apte à venir se loger dans un renfoncement (12) correspondant creusé dans l'épaisseur de la face du coffre située en regard de la face arrière de la cuirasse.Protective device for a door lock (1) comprising a cylinder (7) provided with a bit (10) intended to be positioned inside a box (2), said protective device comprising a cuirass (15) ) capable of covering a first portion (8) of the barrel opening out of the room to be protected, a locking element (25) able to grip a second portion (9) of the barrel opening inside the room to be protected, and fastening means (30) provided for crossing the trunk and allowing the attachment of the armor to the locking element, said armor being intended to come into contact with the trunk face located outside the room to be protected by via a rear face (18) equipped with at least two lugs (19) located in the extension of the armor and each traversed by an axial bore (21), characterized in that each of these pins is adapted to come and stay in a recess (12) horn respondent dug in the thickness of the trunk face located opposite the rear face of the cuirass. Dispositif de protection selon la revendication 1, caractérisé en ce que chaque renfoncement (12) comporte un fond (13) traversé par un orifice (14) prévu pour être situé en regard de l'alésage axial (21) présenté par l'ergot (19) correspondant.Protective device according to claim 1, characterized in that each recess (12) comprises a bottom (13) through which an orifice (14) is provided which is intended to face the axial bore (21) presented by the spur ( 19) corresponding. Dispositif de protection selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la face arrière (18) de la cuirasse (15) comprend deux ergots (19) disposés de part et d'autre d'une ouverture centrale (20) adaptée à la section du barillet (7).Protective device according to any one of claims 1 or 2, characterized in that the rear face (18) of the armor (15) comprises two lugs (19) arranged on either side of a central opening (20). ) adapted to the barrel section (7). Dispositif de protection selon l'une quelconque des revendications 1 à 3, caractérisé en ce que, en partie basse de la cuirasse (15), la face arrière (18) est pourvue d'un nez (22) conçu pour s'étendre sous le coffre (2).Protective device according to any one of claims 1 to 3, characterized in that , in the lower part of the armor (15), the rear face (18) is provided with a nose (22) designed to extend under the chest (2). Dispositif de protection selon la revendication 4, caractérisé en ce que le nez (22) possède une longueur sensiblement égale à l'épaisseur du coffre (2), et en ce qu'il est doté d'un alésage axial (24).Protective device according to claim 4, characterized in that the nose (22) has a length substantially equal to the thickness of the trunk (2), and in that it is provided with an axial bore (24). Dispositif de protection selon la revendication 5, caractérisé en que le coffre (2) présente un dégagement (11) pour le passage du nez (22). Protective device according to claim 5, characterized in that the box (2) has a recess (11) for the passage of the nose (22). Dispositif de protection selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un évidement est creusé en partie basse de la cuirasse (15) au voisinage de sa face arrière (18), et en ce que cet évidement est comblé au moyen d'un matériau (32) de dureté plus élevée.Protective device according to any one of claims 1 to 6, characterized in that a recess is hollowed out in the lower part of the armor (15) in the vicinity of its rear face (18), and in that this recess is filled by means of a material (32) of higher hardness. Dispositif de protection selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'élément de blocage (25) est réalisé sous la forme d'une rondelle présentant, d'une part, une perforation centrale (27) adaptée à la section du barillet (7), et d'autre part, des orifices (28, 29) prévus pour le passage des moyens de fixation (30).Protective device according to one of Claims 1 to 7, characterized in that the locking element (25) is in the form of a washer having, on the one hand, a central perforation (27) adapted to the section of the barrel (7), and secondly, orifices (28, 29) provided for the passage of the fastening means (30). Serrure de porte (1) comprenant un coffre (2) traversé par un barillet (7) pourvu d'un panneton (10) mobile en rotation logé dans le coffre, caractérisé en ce qu'elle comprend un dispositif de protection selon l'une quelconque des revendications 1 à 8.Door lock (1) comprising a trunk (2) through which a barrel (7) with a rotating bit (10) is housed in the trunk, characterized in that it comprises a protection device according to one any of claims 1 to 8. Serrure de porte (1) selon la revendication 9, caractérisé en ce que le coffre (2) est constitué à partir de deux flasques (3) assemblés l'un à l'autre, et en ce que chaque flasque se décompose, d'une part, en un premier élément (3a) recouvrant la partie haute du coffre, et d'autre part, en un second élément (3b) à dureté renforcée recouvrant la partie basse du coffre.Door lock (1) according to claim 9, characterized in that the box (2) consists of two flanges (3) assembled to each other, and in that each flange decomposes, d ' firstly, in a first element (3a) covering the upper part of the trunk, and secondly, in a second element (3b) with reinforced hardness covering the lower part of the trunk.
    EP20050002128 2004-02-05 2005-02-02 Device for the protection of a door cylinder lock Active EP1580356B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0401092 2004-02-05
    FR0401092A FR2866047B1 (en) 2004-02-05 2004-02-05 DEVICE FOR PROTECTING DOOR LOCK BARREL

    Publications (2)

    Publication Number Publication Date
    EP1580356A1 true EP1580356A1 (en) 2005-09-28
    EP1580356B1 EP1580356B1 (en) 2006-08-23

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP20050002128 Active EP1580356B1 (en) 2004-02-05 2005-02-02 Device for the protection of a door cylinder lock

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    EP (1) EP1580356B1 (en)
    DE (1) DE602005000083D1 (en)
    FR (1) FR2866047B1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1688565A1 (en) * 2005-01-10 2006-08-09 Massimo Valente Lock with improved security against tampering
    GB2512579A (en) * 2013-03-08 2014-10-08 Uap Ltd A lock guard
    IT201900009732A1 (en) * 2019-06-21 2020-12-21 Pier Luigi Oliana PROTECTION DEVICE FOR LOCKS.

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    IT201900009720A1 (en) * 2019-06-21 2020-12-21 Fabbro Emanuela Dal PROTECTION DEVICE FOR LOCKS.

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3604719A1 (en) * 1986-02-14 1987-08-20 Feral Sicherheitstechnik Elisa Break-in safety device for locks
    EP0281519A2 (en) * 1987-03-06 1988-09-07 Ernst Keller Device for installing a cylinder lock
    FR2708025A1 (en) * 1993-07-22 1995-01-27 Vachette Sa Device for the protection of the cylinder plug of a door lock
    FR2816975A1 (en) * 2000-11-20 2002-05-24 Jean Michel Louvet Protection elements against breaking into European locks comprises protection cylinder surrounding cylinder, plug partially sealing protection cylinder and reinforcing part welded onto protection cylinder
    FR2831911A1 (en) * 2001-11-05 2003-05-09 Bricard Sa Door lock has security mechanism with anti-tamper shield fixed in place by internal screw

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3604719A1 (en) * 1986-02-14 1987-08-20 Feral Sicherheitstechnik Elisa Break-in safety device for locks
    EP0281519A2 (en) * 1987-03-06 1988-09-07 Ernst Keller Device for installing a cylinder lock
    FR2708025A1 (en) * 1993-07-22 1995-01-27 Vachette Sa Device for the protection of the cylinder plug of a door lock
    FR2816975A1 (en) * 2000-11-20 2002-05-24 Jean Michel Louvet Protection elements against breaking into European locks comprises protection cylinder surrounding cylinder, plug partially sealing protection cylinder and reinforcing part welded onto protection cylinder
    FR2831911A1 (en) * 2001-11-05 2003-05-09 Bricard Sa Door lock has security mechanism with anti-tamper shield fixed in place by internal screw

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1688565A1 (en) * 2005-01-10 2006-08-09 Massimo Valente Lock with improved security against tampering
    GB2512579A (en) * 2013-03-08 2014-10-08 Uap Ltd A lock guard
    GB2512579B (en) * 2013-03-08 2019-12-04 Uap Ltd A lock guard
    IT201900009732A1 (en) * 2019-06-21 2020-12-21 Pier Luigi Oliana PROTECTION DEVICE FOR LOCKS.

    Also Published As

    Publication number Publication date
    EP1580356B1 (en) 2006-08-23
    FR2866047B1 (en) 2006-05-26
    DE602005000083D1 (en) 2006-10-05
    FR2866047A1 (en) 2005-08-12

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