EP2554769A1 - Zylinderverschluss, der eine deformierbare Haltevorrichtung umfasst - Google Patents

Zylinderverschluss, der eine deformierbare Haltevorrichtung umfasst Download PDF

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Publication number
EP2554769A1
EP2554769A1 EP12178017A EP12178017A EP2554769A1 EP 2554769 A1 EP2554769 A1 EP 2554769A1 EP 12178017 A EP12178017 A EP 12178017A EP 12178017 A EP12178017 A EP 12178017A EP 2554769 A1 EP2554769 A1 EP 2554769A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
lock
actuating
holding device
stator
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.)
Withdrawn
Application number
EP12178017A
Other languages
English (en)
French (fr)
Inventor
Norbert M. Tordjman
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.)
Tordjman SAS
Original Assignee
Tordjman SAS
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 Tordjman SAS filed Critical Tordjman SAS
Publication of EP2554769A1 publication Critical patent/EP2554769A1/de
Withdrawn legal-status Critical Current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
    • E05B17/0054—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed
    • E05B17/0058—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed with non-destructive disengagement
    • 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
    • E05B17/2092—Means responsive to tampering or attack providing additional locking

Definitions

  • the present invention relates to a cylinder lock of the type comprising an actuating cylinder of the lock and a cylindrical cylinder cover extending around said actuating cylinder, the actuating cylinder being movable in translation in an axial direction. inside said cylinder guard, between an actuating position in which the actuating cylinder can be actuated to operate the lock and a retracted position in which the actuating cylinder is depressed into the cylinder guard and triggers a locking mechanism of the lock arranged to prevent operation of the lock.
  • a cylinder lock generally comprises a mechanism for actuating one or more deadbolts, formed by a cylinder, protected against damage by a cylinder guard, in the part thereof intended to extend to the outside of the cylinder. door on which is mounted the cylinder lock.
  • some locks are protected by being arranged to block the operation of the lock, for example by preventing the actuation of the bolts, when applying an axial force greater than a certain threshold against the cylinder, by example under the effect of the action of a drill against the cylinder.
  • the document FR-2,884,545 describes in particular a locking mechanism of a cylinder lock when the cylinder undergoes the action of a drill to deteriorate.
  • the locking mechanism extends between the cylinder and the cylinder guard and has a complex structure. Such a mechanism is not satisfactory because it increases the size of the lock, is complex to achieve and is not compatible in a simple way with a lock operating with a key called “non-reproducible", such as a key at micro-points.
  • One of the aims of the invention is to overcome these disadvantages by providing a cylinder lock that can be locked in a simple manner when a force exceeding a certain threshold is applied against the cylinder, limiting the size of the lock and being compatible with a lock functioning with a non-reproducible key.
  • the invention relates to a cylinder lock of the aforementioned type, comprising a deformable holding device disposed against the cylinder in the axial direction in the cylinder cover, said device holding the cylinder in its actuated position in a non-state. deformed and being arranged to deform under the action of an axial force greater than a predetermined threshold exerted on the cylinder, the holding device allowing the passage of the cylinder in its retracted position in its deformed state.
  • the deformable holding device according to the invention is particularly simple to implement and is arranged, for example against a shoulder of a drive element of the cylinder, in the continuity of the cylinder, so as to be compact. In addition, it is compatible with a lock operating with a non-reproducible key because it is not interposed between the cylinder guard and the cylinder.
  • axial is defined along the axis A of the lock, said axis being the axis of the cylinder and the cylinder guard.
  • radial is defined along the planes perpendicular to the axis A.
  • the actuating mechanism of the cylinder lock has not been shown in detail in the figures and will not be described in detail here.
  • Such a mechanism is known in itself and is for example of the type operating with a non-reproducible key or with a reproducible key.
  • the invention will be described in connection with a particular cylinder structure. However, it is understood that it can be applied to other types of cylinder, the holding device according to the invention is not directly dependent on the cylinder structure itself.
  • a cylinder lock 1 of the type comprising an actuating cylinder 2 of the lock and a cylinder guard 4 of cylindrical shape substantially complementary to the shape of the cylinder 2 is described.
  • the cylinder cover 4 forms the outer casing of the cylinder lock 1 and comprises for example a protective tube 6, intended to extend to the outside of the door equipped with the lock, fixed to a base 8, intended for be fixed in the door, by screws 10, a spacer 12 extending between the protective tube 6 and the base 8 and being fixed to the base 8 by the screws 10.
  • the protective tube 6, the base 8 and the spacer 12 define a central bore 14 extending along the axis A of the lock and having for example a circular section.
  • the bore 14 extends between a front opening 16, formed by the protection tube 6, and a rear opening 18, formed by the base 8, extending in radial planes substantially perpendicular to the axis A.
  • the front opening 16, extending on the outside of the door is provided to allow the engagement of the operating key of the lock 1.
  • the cylinder 2 extends into the central bore 14 and comprises successively, in the axial direction starting from the front opening 16 and going towards the rear opening 18, a rotor / stator assembly 22, a transmission element 24 and a driving element 26.
  • the stator 22 extends against a portion of the inner wall of the protective tube 6, that is to say over a portion of the length of the protective tube, and rotates the rotor 20, arranged to receive the key of the lock by the front opening 16. In the normal operating position, or operating position as will be described later, the rotor 20 and the stator 22 open into the front opening 16, as shown in FIG. Fig. 3 .
  • the protection tube 6 comprises a groove 28 extending axially in the inner wall of the protection tube 6.
  • the stator 22 comprises at least one housing 30, on its outer wall, which is applied against the inner wall of the protective tube 6, arranged in view of the throat 28 and opening into it.
  • a friction ball 32 such as a carbide ball, is disposed in the housing 30 and extends partially in the groove 28.
  • Such a friction ball 32 allows to position the cylinder 2 relative to the cylinder guard 4 and to prevent rotation of the stator 22 relative to the protective tube 6.
  • the stator 22 comprises two housings 30 spaced apart from one another in the axial direction, each receiving housing a friction ball 32 disposed in the groove 28.
  • the friction balls 32 also serve to guide the cylinder 2 in translation as will be described later.
  • the rotor 20 is engaged with the transmission element 24, itself engaged with the driving element 26.
  • the transmission element 24 is arranged to transmit the rotational movement of the rotor 20 to the element d drive 26, the movement of the rotor being engaged by a key compatible with the rotor 20 introduced into said rotor 20 through the front opening 16.
  • the driving element 26 actuates the mechanism of the lock in known manner, so as to open or lock the door on which the lock 1 is mounted. The operation of such a lock 1 is conventional and will not be described in more detail here.
  • the lock cylinder 1 further comprises a deformable holding device 34 disposed against the cylinder 2 in the axial direction in the cylinder cover 4.
  • the holding device 34 is arranged to hold the cylinder 2 in a position of actuation, shown on the Fig. 3 , when not deformed. In the actuating position, the cylinder 2 opens into the front opening 16 of so that the lock 1 can be operated by a key, as has been previously described.
  • the holding device 34 When the holding device 34 is deformed, it releases a passage in the central bore 14 of the cylinder cover 4 so that the cylinder 2 moves in translation in the axial direction towards the rear opening 18 to a withdrawal position , represented on the Fig. 4 in which the cylinder 2 is pushed into the cylinder cover 4 and triggers a locking mechanism (not shown) of the lock 1 arranged to prevent the operation of the lock 1.
  • a locking mechanism for example actuated by the element drive 26 in the retracted position, is known in itself and is for example constituted by an informer system, arranged to block the movement of the bolts of the lock when actuated.
  • the lock 1 in the retracted position, the lock 1 is blocked and does not open the door on which the lock is mounted.
  • the holding device 34 is arranged to deform under the action of an axial force F; represented by the arrow F of the Fig. 4 , above a predetermined threshold on the cylinder 2, for example an axial force due to a drill actuated on the rotor 20, to damage the cylinder 2 for burglary.
  • the force F has the effect of deforming the holding device 34 and moving the cylinder 2 to its retracted position, the cylinder 2 being no longer held in its actuated position when the holding device 34 is in its deformed state .
  • the predetermined threshold can be modulated according to the resistance that is to be given to the lock by adapting the holding device 34 adequately, as will be described later.
  • the predetermined threshold is substantially between 14 kg and 30 kg, for example equal to 24 kg, so that the deformable holding device 34 is arranged to deform under the action of an axial force F greater than or equal to 14 kg, for example greater than or equal to 24 kg.
  • the holding device 34 is formed by an annular ring 36 centered on the axis A of the lock, bearing at least one deformable tab 38 extending radially in the undeformed state, that is to say towards the axis A of the lock 1, in the central bore 14, so as to bear against the cylinder 2 and to prevent axial movement thereof.
  • the ring 36 is held in the cylinder guard 4 between annular support surfaces 40 formed respectively on the spacer 12 and on the base 8.
  • the holding surfaces 40 are arranged for the deformable tab 38 in the undistorted state. protrudes in the bore 14 in the radial direction, when the ring 36 is disposed between the holding surfaces 40, as shown in FIG. Fig. 3 .
  • a shoulder 42 of the driving element 26 bears on the deformable tab 38 that the cylinder 2 is held in its actuated position between said tab 38 and the edge of the front opening 16 formed on the protective tube 6, as shown on the Fig. 3 .
  • the shoulder 42 of the drive element 26 has an annular shape and extends parallel to the deformable tab 38 in its undistorted state.
  • the deformable tab 38 In the deformed state, the deformable tab 38 is folded relative to the ring 36, towards the rear orifice 18, so that the deformable tab 38 extends, in the deformed state, in the axial direction, thus releasing the passage in the bore 14 to the rear orifice 18, as shown in FIG. Fig. 4 .
  • the tab 38 is arranged to bend under the effect of the force F, as previously described.
  • the lug 38 no longer forms a bearing against the shoulder 42 of the driving element 26, which thus allows the translation in the axial direction of the cylinder 2 to the retracted position.
  • the ring 36 carries a plurality of deformable tabs 38 distributed along the circumference of the ring 36, each of the tabs 38 extending radially towards the center of the ring 36 in the undeformed state.
  • the ring 36 carries eight tabs 38 regularly distributed over the circumference of the ring 36.
  • the tabs 38 and the ring 36 are for example formed in one piece of a copper and lead alloy or brass or other suitable material. Note that the resistance of the ring 36 to the deformation can be varied, and thus adjust the predetermined threshold of the force F, by simply varying the number of tabs 38 and / or by selecting another material to form the ring 36 and / or by varying the thickness of the ring 36 and / or by increasing the number of rings 36.
  • the axial force exerted on the rotor 20 and the stator 22 is transmitted to the deformable tabs 38 via the transmission element 24. and the element 26. If this axial force is greater than the predetermined threshold, the support of the drive element 26 on the tabs 38 causes the deformation of these tabs 38, which bend to extend in the direction axial and thus release the passage in the bore 14. The axial force then has the effect of driving the rotor 20 and the stator 22 in the protective tube 6 to the withdrawal position. In this position, the driving element 26 triggers the locking mechanism of the lock 1, thus preventing the opening of the door on which the lock 1 is mounted.
  • the holding device 34 is described as being a ring carrying deformable tabs. It is understood, however, that another deformable holding device could be used, for example an element arranged to break beyond the predetermined threshold or a system for actuating a spring, with the stiffness adapted to retract and release the passage in the bore beyond the predetermined threshold. Note that the deformation of the holding device is a plastic deformation, irreversible.
  • the holding device 34 could also extend to another place inside the cylinder cover 4, such as between the protection tube 6 and the spacer 12 and be arranged to bear against a shoulder of the stator. 22 for example.
  • the holding device 34 described above does not extend between the cylinder and the cylinder guard, it limits the size of the lock 1 and can be adapted for locks operating with non-reproducible keys.
  • the mounting of the lock 1 is simplified because the holding device 34 is very simple and consists of a single piece in the embodiment described above.

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  • Lock And Its Accessories (AREA)
EP12178017A 2011-08-05 2012-07-26 Zylinderverschluss, der eine deformierbare Haltevorrichtung umfasst Withdrawn EP2554769A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1157185A FR2978783B1 (fr) 2011-08-05 2011-08-05 Serrure a cylindre comprenant un dispositif de maintien deformable

Publications (1)

Publication Number Publication Date
EP2554769A1 true EP2554769A1 (de) 2013-02-06

Family

ID=46545693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178017A Withdrawn EP2554769A1 (de) 2011-08-05 2012-07-26 Zylinderverschluss, der eine deformierbare Haltevorrichtung umfasst

Country Status (2)

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EP (1) EP2554769A1 (de)
FR (1) FR2978783B1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514232A1 (de) * 1991-05-14 1992-11-19 Fichet Bauche Sicherheitsvorrichtung für die Blockierung eines Rotors bei einem gewaltsamen Öffnungsversuch, und Schloss mit einer solchen Vorrichtung
DE29517204U1 (de) * 1995-10-31 1997-03-06 Pollerhoff, Holger, 45279 Essen Schloß mit sehr hohem Aufbohrschutz
FR2884545A1 (fr) 2005-04-19 2006-10-20 Reelax France Sa Mecanisme de blocage d'une serrure a cylindre
DE102009050381A1 (de) * 2009-10-22 2011-04-28 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schließzylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514232A1 (de) * 1991-05-14 1992-11-19 Fichet Bauche Sicherheitsvorrichtung für die Blockierung eines Rotors bei einem gewaltsamen Öffnungsversuch, und Schloss mit einer solchen Vorrichtung
DE29517204U1 (de) * 1995-10-31 1997-03-06 Pollerhoff, Holger, 45279 Essen Schloß mit sehr hohem Aufbohrschutz
FR2884545A1 (fr) 2005-04-19 2006-10-20 Reelax France Sa Mecanisme de blocage d'une serrure a cylindre
DE102009050381A1 (de) * 2009-10-22 2011-04-28 Huf Hülsbeck & Fürst Gmbh & Co. Kg Schließzylinder

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Publication number Publication date
FR2978783A1 (fr) 2013-02-08
FR2978783B1 (fr) 2013-09-13

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