EP2944745B1 - Disengageable lock - Google Patents

Disengageable lock Download PDF

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Publication number
EP2944745B1
EP2944745B1 EP15176177.2A EP15176177A EP2944745B1 EP 2944745 B1 EP2944745 B1 EP 2944745B1 EP 15176177 A EP15176177 A EP 15176177A EP 2944745 B1 EP2944745 B1 EP 2944745B1
Authority
EP
European Patent Office
Prior art keywords
lock
vehicle
intermediate stator
rotor
fixed body
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.)
Not-in-force
Application number
EP15176177.2A
Other languages
German (de)
French (fr)
Other versions
EP2944745A1 (en
Inventor
Frédéric MALTAVERNE
Christophe Perrin
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.)
Minebea AccessSolutions France SAS
Original Assignee
U Shin France SAS
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Filing date
Publication date
Application filed by U Shin France SAS filed Critical U Shin France SAS
Publication of EP2944745A1 publication Critical patent/EP2944745A1/en
Application granted granted Critical
Publication of EP2944745B1 publication Critical patent/EP2944745B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
    • 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
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/44—Burglar prevention, e.g. protecting against opening by unauthorised tools
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/20—Attack-actuated defeating mechanisms

Definitions

  • the invention relates to a disengageable latch, in particular intended to be mounted in a closure mechanism of a motor vehicle door.
  • a conventional lock comprises a fixed body, mounted integral with the closing mechanism and / or the opening, a rotor, generally cylindrical in shape, fitted into the fixed body and having a housing for a key.
  • a set of flakes, radially movable, holds or releases in rotation the rotor relative to the fixed body. The flakes are moved when a key is inserted into the rotor housing, and the rotor is released in rotation only when the key is compliant. It is then the rotation of the rotor which triggers the unlocking of the closing mechanism.
  • a technique for forcing the lock is the use of a false key, which can simply be a tool such as a screwdriver, to exert a sufficiently large torque on the rotor in order to break the glitter, and thus to force the rotation of the rotor.
  • the disengageable locks comprise, for example, an intermediate stator, maintained in normal time integral with the fixed body, and it is this intermediate stator which accommodates the rotor and the flakes.
  • this intermediate stator which accommodates the rotor and the flakes.
  • disengageable latch in which the flakes, when the key is not a proper key, circulate in channels with a slope such that these circulation channels drive the rotor in translation along its longitudinal direction, and thereby cause the rotor to separate from a downstream unlocking chain.
  • This type of disengageable bolt makes it possible to avoid the use of an intermediate stator.
  • the disengageable locks of the state of the art are only a passive safety device, and can therefore only delay the success of a break-in.
  • the invention proposes a releasable rotor lock according to the first claim.
  • the disengageable latch may further have one or more of the following features, taken alone or in combination.
  • the means for detecting attempts to break the lock include at least one accelerometer capable of detecting blows to the latch.
  • the indexing member can switch between two positions, one engaged, where the indexing member maintains the intermediate stator integral in rotation of the fixed body, and the other, retracted, where the intermediate stator is free in rotation, and the latch tamper detection means comprise at least one switch cooperating with the indexing member during its tilting in the retracted position.
  • the indexing member comprises at least one inclined outer face portion, and is arranged to move in axial translation during disengagement of the lock rotor, the means for detecting a break in the lock comprise a stationary pin in axial translation and mobile in radial translation, disposed in contact with the inclined outer face portion and the switch, so as to be translated axially during the radial movement of the indexing member and then actuate the switch.
  • the indexing member is arranged to move in radial translation during disengagement of the lock, is connected to the switch, and it actuates the switch during its movement in translation.
  • the invention also relates to a motor vehicle safety device comprising at least one disengageable lock according to the invention wherein said disengageable lock is connected to a control unit adapted to control at least one means for securing the vehicle.
  • the device may further have one or more of the following features, taken alone or in combination.
  • the at least one means for securing the vehicle comprises means for inhibiting the unlocking of the closing mechanisms when an attempt to break the lock is detected.
  • the at least one means for securing the vehicle comprises means for inhibiting the starting of the vehicle when an attempt to break the lock is detected.
  • the at least one means for securing the vehicle includes steering lock activation means when an attempt to tamper with the lock is detected.
  • the at least one means for securing the vehicle comprises means for activating the brakes of the vehicle when an attempt to break the lock is detected.
  • the invention relates to a disengageable bolt, in particular for a closure mechanism of a motor vehicle door.
  • a disengageable bolt is shown on the figure 1 .
  • the lock 1 comprises a fixed body 3, intended to be fixedly mounted relative to the closing mechanism.
  • the fixed body 3 is substantially cylindrical in shape, and houses an intermediate stator 5, which is substantially cylindrical in shape and rotatably mounted relative to the fixed body 3.
  • an intermediate stator 5 is positioned in the intermediate stator 5 in the intermediate stator 5 in the intermediate stator 5 positioned a rotor 7, substantially cylindrical, rotatably mounted with respect to the intermediate stator 5.
  • the rotor 7 can accommodate a key not shown in a housing 9.
  • locking members such as a set of pistons or flakes mounted in radial slots, not shown, prevent free rotation of the rotor 7 relative to the intermediate stator 5. Only the introduction into the housing 9 of the appropriate key brings the locking members into a position where the free rotation of the rotor 7 is possible.
  • An indexing member 11 maintains in normal use the intermediate stator 5 fixed with respect to the fixed body 3.
  • the indexing member 11 is thus arranged that it releases in rotation the intermediate stator 5 relative to the fixed body 3, when too much torque is exerted on the rotor 7. In this way, when an incorrect key or a tool is introduced into the housing 9 and a torque is exerted, the rotor assembly 7 and intermediate stator 5 is released in rotation without sufficient torque to damage the locking members is exerted.
  • the lock 1 further comprises means for detecting a break-in 13, 15, 29.
  • These means of detecting a break-in 13, 15, 29 detect the physical intervention on elements of the lock 1 of a person trying to 'break the lock 1. They are intended to be connected to a vehicle security device, including a control unit 16 of the vehicle.
  • Said control unit 16 which may for example be an on-board computer, controls securing means, which may be for example an alarm, the locking of the brakes, the inhibition of the unlocking of the steering and / or the inhibition of the steering. unlocking the closing mechanisms, as part of a safety device of which it is part.
  • burglar detection means 13, 15, 29 comprise for example an accelerometer 13, connected to the rotor.
  • This accelerometer 13 is set to be sensitive to shocks.
  • it may be a piezoelectric accelerometer, or piezoresistive.
  • the accelerometer is connected to the control unit 16, and sends a signal when an impact is detected.
  • the accelerometer 13 sends a signal to the control unit 16.
  • the control unit 16 receives the signal and then activates at least one means of securing the vehicle.
  • the tamper detection means 13, 15, 29 may further comprise a clutch detector 15 cooperating with the indexing member 11.
  • a clutch detector 15 An embodiment of such a clutch detector 15 is shown in FIG. figure 2 and 3 .
  • the indexing member 11 can switch between two positions, one engaged, where the indexing member 11 holds the intermediate stator 5 integral in rotation with the fixed body 3, and the other, retracted, where the intermediate stator 5 is free to rotate, which corresponds to the disengaged state of the latch 1.
  • the indexing member 11 On the figure 2 , the indexing member 11 is in the engaged position.
  • the indexing member 11 On the figure 3 , the indexing member 11 is in retracted position, which corresponds to an axial translation, to the left in the figures.
  • the clutch detector 15 comprises an electric switch 17 which cooperates with the indexing member 11, and which is intended to be connected to the control unit 16.
  • the switch 17 is connected to a pin 19.
  • the pin 19 is in contact with an inclined outer face portion 21 of the indexing member 11.
  • FIG. figure 4 An example, for locks 1 whose indexing member 11 moves radially when tilted in the retracted position, is shown in FIG. figure 4 .
  • the switch 17 is directly connected to the indexing member 11, which activates without intermediate the switch 17 during its radial movement represented by the double-arrow 27.
  • the release detector 15 may also according to another embodiment comprise a magnetic declutching sensor: the indexing member 11 then comprises a magnet which is approached, when tilting in the retracted position of an associated device, such as a Reed bulb (soft blade switch).
  • a Reed bulb soft blade switch
  • the clutch detector 15 by means of a capacitive, piezoelectric or optical detector.
  • FIGS. 5 and 6 illustrate an example of a tamper detection means 13, 15, 29 in the form of a rotation detector 29 of the intermediate stator 5 with respect to the fixed body 3.
  • the rotation detector 29 comprises two conjugated detection elements 31, 33, one 31 integral with the intermediate stator 5, the other 33 integral with the fixed body.
  • these conjugated detection elements 31, 33 may for example be a Reed bulb and a magnet, or two isolated contacts.
  • the conjugated detection elements 31, 33 are thus arranged that they do not interact when the intermediate stator 5 is in the fixed position corresponding to the engaged state of the lock 1, but that a rotation of the intermediate stator 5 with respect to the fixed body 3 causes said detection elements 31, 33 to interact, and then triggers the transmission of a signal to the control unit 16.
  • the rotation of the intermediate stator 5 with respect to the fixed body 3 can only be done in the disengaged state, the interaction of the detection elements 31, 33 atteste a disengagement of the lock 1, and thus an attempted burglary.
  • the burglar detector can also detect an axial translation of the intermediate stator, which typically occurs during the disengagement.
  • the detector can also detect an axial translation of the rotor simultaneously with the translation of the intermediate stator or not, relative to the fixed body, which attests the disengagement.
  • the invention also relates to a motor vehicle safety device 35 comprising a disengageable lock 1 comprising tamper detection means 13, 15, 29 as described.
  • a safety device comprises a control unit 16 of the vehicle configured to receive signals from the detection means 13, 15, 29 of a break-in of the lock 1, and means for securing the vehicle 37, triggered on receipt of the signals from the tamper detection means 13, 15, 29.
  • the securing means of the vehicle 37 may for example comprise means for inhibiting the unlocking of the vehicle when an attempt to break the lock 1 is detected, in order to make it at least temporarily impossible to unlock the closing mechanism by direct action on the mechanism.
  • the securing means of the vehicle 37 may also include vehicle start inhibiting means when an attempt to break the lock 1 is detected, in order to make it impossible at least temporarily to start the vehicle, even if a person has succeeded. to break into the vehicle.
  • the means for securing the vehicle may further comprise means for inhibiting the unlocking of the steering when an attempt to break the lock 1 is detected, in order to prevent the unlocking of the steering, and thus the driving of the vehicle. following a break-in.
  • the securing means of the vehicle 37 may further comprise means for activating the brakes of the vehicle when an attempt to break the lock is detected, configured to activate the brakes of the vehicle when an attempt to break the lock 1 is detected.
  • the invention therefore makes it possible to obtain a motor vehicle safety device 35, in which the disengageable lock 1 is no longer a passive element, but an active element, cooperating with the means of securing the vehicle 37 of the safety device. 35 via a unit of 16.
  • the disengageable lock 1 allows the automatic introduction of a response to said break-in to make it more difficult or impossible for theft of the vehicle and / or its content.

Landscapes

  • Lock And Its Accessories (AREA)

Description

L'invention concerne un verrou débrayable, en particulier destiné à être monté dans un mécanisme de fermeture d'ouvrant de véhicule automobile.The invention relates to a disengageable latch, in particular intended to be mounted in a closure mechanism of a motor vehicle door.

Un verrou classique comporte un corps fixe, monté solidaire du mécanisme de fermeture et/ou de l'ouvrant, un rotor, de forme générale cylindrique, emboîté dans le corps fixe et présentant un logement pouvant accueillir une clé. Un jeu de paillettes, mobiles radialement, retient ou libère en rotation le rotor par rapport au corps fixe. Les paillettes sont déplacées lorsqu'une clé est introduite dans le logement du rotor, et le rotor n'est libéré en rotation que lorsque la clé est conforme. C'est ensuite la rotation du rotor qui déclenche le déverrouillage du mécanisme de fermeture.A conventional lock comprises a fixed body, mounted integral with the closing mechanism and / or the opening, a rotor, generally cylindrical in shape, fitted into the fixed body and having a housing for a key. A set of flakes, radially movable, holds or releases in rotation the rotor relative to the fixed body. The flakes are moved when a key is inserted into the rotor housing, and the rotor is released in rotation only when the key is compliant. It is then the rotation of the rotor which triggers the unlocking of the closing mechanism.

Les paillettes étant de par leur forme un élément relativement peu résistant du verrou, une technique pour forcer le verrou est l'utilisation d'une fausse clé, pouvant simplement être un outil tel qu'un tournevis, pour exercer un couple suffisamment important sur le rotor afin de briser les paillettes, et donc de forcer la rotation du rotor.The flakes being in their form a relatively weak element of the lock, a technique for forcing the lock is the use of a false key, which can simply be a tool such as a screwdriver, to exert a sufficiently large torque on the rotor in order to break the glitter, and thus to force the rotation of the rotor.

Pour pallier à ce type d'attaque, on connaît le principe des verrous débayables, selon lequel le rotor est désolidarisé d'un organe de sortie de déverrouillage lorsqu'il est actionné en force sans que les paillettes aient été déplacées en libération du rotor.To overcome this type of attack, we know the principle of debayable locks, according to which the rotor is disengaged from an unlocking release member when it is actuated in force without the flakes have been moved in release of the rotor.

Les verrous débrayables comportent par exemple un stator intermédiaire, maintenu en temps normal solidaire du corps fixe, et c'est ce stator intermédiaire qui accueille le rotor et les paillettes. Lorsqu'un couple trop important est exercé sur le rotor, celui-ci, transmis par les paillettes au stator intermédiaire, aboutit à une libération en rotation de l'ensemble solidaire que constituent le rotor, le stator intermédiaire et les paillettes. Le verrou est alors débrayé.The disengageable locks comprise, for example, an intermediate stator, maintained in normal time integral with the fixed body, and it is this intermediate stator which accommodates the rotor and the flakes. When an excessive torque is exerted on the rotor, the latter, transmitted by the flakes to the intermediate stator, leads to a release in rotation of the integral assembly that constitute the rotor, the intermediate stator and flakes. The lock is then disengaged.

On connaît également un type de verrou débrayable dans lequel les paillettes, lorsque la clé n'est pas une clé conforme, circulent dans des canaux comportant une pente de telle sorte que ces canaux de circulation entraînent le rotor en translation selon sa direction longitudinale, et provoquent de ce fait la désolidarisation du rotor par rapport à une chaîne avale de déverrouillage. Ce type de verrou débrayable permet d'éviter l'utilisation d'un stator intermédiaire.There is also known a type of disengageable latch in which the flakes, when the key is not a proper key, circulate in channels with a slope such that these circulation channels drive the rotor in translation along its longitudinal direction, and thereby cause the rotor to separate from a downstream unlocking chain. This type of disengageable bolt makes it possible to avoid the use of an intermediate stator.

Cependant, une fois le verrou débrayé d'autres techniques d'effraction peuvent être appliquées. En particulier, en introduisant un outil pointu (burin ou tournevis) derrière une partie frontale, faisant façade extérieure, du verrou, à coups de marteau, il est possible d'arracher le rotor de son logement dans le stator intermédiaire, et d'agir ensuite directement sur le mécanisme de verrouillage.However, once the lock is disengaged other burglary techniques can be applied. In particular, by introducing a sharp tool (chisel or screwdriver) behind a front part, external facade, lock, with hammers, it is possible to tear the rotor from its housing in the intermediate stator, and to act then directly on the locking mechanism.

De manière générale, les verrous débrayables de l'état de la technique ne sont qu'un dispositif de sécurité passif, et ne peuvent donc que retarder la réussite d'une effraction.In general, the disengageable locks of the state of the art are only a passive safety device, and can therefore only delay the success of a break-in.

Le document US 5,229,747 décrit un exemple de réalisation d'un verrou actif débrayable selon l'état de la technique.The document US 5,229,747 describes an embodiment of a disengageable active lock according to the state of the art.

Pour pallier à ce défaut, l'invention propose un verrou à rotor débrayable selon la revendication première.To overcome this defect, the invention proposes a releasable rotor lock according to the first claim.

Le verrou débrayable peut en outre présenter une ou plusieurs des caractéristiques qui suivent, prises seules ou en combinaison.The disengageable latch may further have one or more of the following features, taken alone or in combination.

Les moyens de détection de tentative d'effraction du verrou comportent au moins un accéléromètre apte à détecter des coups assénés au verrou.The means for detecting attempts to break the lock include at least one accelerometer capable of detecting blows to the latch.

L'organe d'indexation peut basculer entre deux positions, l'une, embrayée, où l'organe d'indexation maintient le stator intermédiaire solidaire en rotation du corps fixe, et l'autre, escamotée, où le stator intermédiaire est libre en rotation, et les moyens de détection de tentative d'effraction du verrou comprennent au moins un commutateur coopérant avec l'organe d'indexation lors de son basculement en position escamotée.The indexing member can switch between two positions, one engaged, where the indexing member maintains the intermediate stator integral in rotation of the fixed body, and the other, retracted, where the intermediate stator is free in rotation, and the latch tamper detection means comprise at least one switch cooperating with the indexing member during its tilting in the retracted position.

L'organe d'indexation comporte au moins une portion de face extérieure inclinée, et est disposé de manière à se mouvoir en translation axiale lors du débrayage du rotor du verrou, les moyens de détection d'une effraction du verrou comportent un pion immobile en translation axiale et mobile en translation radiale, disposé au contact de la portion de face extérieure inclinée et du commutateur, de sorte à être translaté axialement lors du mouvement radial de l'organe d'indexation et d'actionner alors le commutateur.The indexing member comprises at least one inclined outer face portion, and is arranged to move in axial translation during disengagement of the lock rotor, the means for detecting a break in the lock comprise a stationary pin in axial translation and mobile in radial translation, disposed in contact with the inclined outer face portion and the switch, so as to be translated axially during the radial movement of the indexing member and then actuate the switch.

L'organe d'indexation est disposé de manière à se mouvoir en translation radiale lors du débrayage du verrou, est relié au commutateur, et il actionne le commutateur lors de son mouvement en translation.The indexing member is arranged to move in radial translation during disengagement of the lock, is connected to the switch, and it actuates the switch during its movement in translation.

L'invention a également pour objet un dispositif de sécurité de véhicule automobile comportant au moins un verrou débrayable selon l'invention dans lequel ledit verrou débrayable est relié à une unité de contrôle apte à contrôler au moins un moyen de sécurisation du véhicule.The invention also relates to a motor vehicle safety device comprising at least one disengageable lock according to the invention wherein said disengageable lock is connected to a control unit adapted to control at least one means for securing the vehicle.

Le dispositif peut en outre présenter l'une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison.The device may further have one or more of the following features, taken alone or in combination.

Le au moins un moyen de sécurisation du véhicule comporte des moyens d'inhibition de déverrouillage des mécanismes de fermeture lorsqu'une tentative d'effraction du verrou est détectée.The at least one means for securing the vehicle comprises means for inhibiting the unlocking of the closing mechanisms when an attempt to break the lock is detected.

Le au moins un moyen de sécurisation du véhicule comporte des moyens d'inhibition du démarrage du véhicule lorsqu'une tentative d'effraction du verrou est détectée.The at least one means for securing the vehicle comprises means for inhibiting the starting of the vehicle when an attempt to break the lock is detected.

Le au moins un moyen de sécurisation du véhicule comporte des moyens d'activation de blocage de la direction lorsqu'une tentative d'effraction du verrou est détectée.The at least one means for securing the vehicle includes steering lock activation means when an attempt to tamper with the lock is detected.

Le au moins un moyen de sécurisation du véhicule comporte des moyens d'activation des freins du véhicule lorsqu'une tentative d'effraction du verrou est détectée.The at least one means for securing the vehicle comprises means for activating the brakes of the vehicle when an attempt to break the lock is detected.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description des figures suivante, parmi lesquelles :

  • la figure 1 est une vue schématique en perspective d'un verrou débrayable selon l'invention,
  • les figures 2 et 3 sont des vues schématiques de profil d'un mode de réalisation des moyens de détection du débrayage,
  • la figure 4 est une vue schématique en perspective des moyens de détection du débrayage,
  • les figures 5 et 6 sont des vues schématiques en perspective d'un détecteur de mouvement du stator intermédiaire du verrou par rapport au corps fixe,
  • la figure 7 est un schéma synoptique d'un dispositif de sécurité de véhicule automobile comportant un verrou débrayable selon l'invention.
Other features and advantages of the invention will appear on reading the description of the following figures, among which:
  • the figure 1 is a schematic perspective view of a disengageable bolt according to the invention,
  • the Figures 2 and 3 are schematic side views of an embodiment of the clutch detection means,
  • the figure 4 is a schematic perspective view of the clutch detection means,
  • the Figures 5 and 6 are schematic perspective views of a motion detector of the intermediate stator of the lock relative to the fixed body,
  • the figure 7 is a block diagram of a motor vehicle safety device comprising a disengageable lock according to the invention.

Sur toutes les figures les mêmes références se rapportent aux mêmes éléments.In all figures the same references refer to the same elements.

L'invention a pour objet un verrou débrayable, en particulier pour un mécanisme de fermeture d'ouvrant de véhicule automobile. Un tel verrou débrayable est représenté sur la figure 1. Le verrou 1 comporte un corps fixe 3, destiné à être monté fixe par rapport au mécanisme de fermeture. Le corps fixe 3 est de forme sensiblement cylindrique, et loge un stator intermédiaire 5, de forme sensiblement cylindrique lui aussi, et monté de manière à pouvoir tourner par rapport au corps fixe 3. Dans le stator intermédiaire 5 est positionné un rotor 7, sensiblement cylindrique, monté de manière à pouvoir tourner par rapport au stator intermédiaire 5.The invention relates to a disengageable bolt, in particular for a closure mechanism of a motor vehicle door. Such a disengageable bolt is shown on the figure 1 . The lock 1 comprises a fixed body 3, intended to be fixedly mounted relative to the closing mechanism. The fixed body 3 is substantially cylindrical in shape, and houses an intermediate stator 5, which is substantially cylindrical in shape and rotatably mounted relative to the fixed body 3. In the intermediate stator 5 is positioned a rotor 7, substantially cylindrical, rotatably mounted with respect to the intermediate stator 5.

Le rotor 7 peut accueillir une clé non représentée dans un logement 9.The rotor 7 can accommodate a key not shown in a housing 9.

En fonctionnement, des organes de verrouillage, tels qu'un jeu de pistons ou de paillettes monté dans des fentes radiales, non représentés, empêchent la libre rotation du rotor 7 par rapport au stator intermédiaire 5. Seule l'introduction dans le logement 9 de la clé appropriée amène les organes de verrouillage dans une position où la libre rotation du rotor 7 est possible.In operation, locking members, such as a set of pistons or flakes mounted in radial slots, not shown, prevent free rotation of the rotor 7 relative to the intermediate stator 5. Only the introduction into the housing 9 of the appropriate key brings the locking members into a position where the free rotation of the rotor 7 is possible.

Un organe d'indexation 11 maintient en usage normal le stator intermédiaire 5 fixe par rapport au corps fixe 3. L'organe d'indexation 11 est ainsi disposé qu'il libère en rotation le stator intermédiaire 5 par rapport au corps fixe 3, lorsqu'un couple trop important est exercé sur le rotor 7. De la sorte, lorsqu'une clé incorrecte ou un outil est introduit dans le logement 9 et qu'un couple est exercé, l'ensemble rotor 7 et stator intermédiaire 5 est libéré en rotation sans qu'un couple suffisant pour endommager les organes de verrouillage ne soit exercé.An indexing member 11 maintains in normal use the intermediate stator 5 fixed with respect to the fixed body 3. The indexing member 11 is thus arranged that it releases in rotation the intermediate stator 5 relative to the fixed body 3, when too much torque is exerted on the rotor 7. In this way, when an incorrect key or a tool is introduced into the housing 9 and a torque is exerted, the rotor assembly 7 and intermediate stator 5 is released in rotation without sufficient torque to damage the locking members is exerted.

Le verrou 1 comporte en outre des moyens de détection d'une effraction 13, 15, 29. Ces moyens de détection d'une effraction 13, 15, 29 détectent l'intervention physique sur des éléments du verrou 1 d'une personne tentant d'ouvrir par effraction le verrou 1. Ils sont destinés à être reliés à un dispositif de sécurité du véhicule, notamment à une unité de contrôle 16 du véhicule. Ladite unité de contrôle 16, qui peut par exemple être un ordinateur de bord, contrôle des moyens de sécurisation, qui peuvent être par exemple une alarme, le verrouillage des freins, l'inhibition du déblocage de la direction et/ou l'inhibition du déverrouillage des mécanismes de fermeture, dans le cadre d'un dispositif de sécurité dont elle fait partie.The lock 1 further comprises means for detecting a break-in 13, 15, 29. These means of detecting a break-in 13, 15, 29 detect the physical intervention on elements of the lock 1 of a person trying to 'break the lock 1. They are intended to be connected to a vehicle security device, including a control unit 16 of the vehicle. Said control unit 16, which may for example be an on-board computer, controls securing means, which may be for example an alarm, the locking of the brakes, the inhibition of the unlocking of the steering and / or the inhibition of the steering. unlocking the closing mechanisms, as part of a safety device of which it is part.

Ces moyens de détection d'une effraction 13, 15, 29 comportent par exemple un accéléromètre 13, relié au rotor. Cet accéléromètre 13 est paramétré pour être sensible aux chocs. Par exemple, ce peut être un accéléromètre piézoélectrique, ou piézorésistif. L'accéléromètre est relié à l'unité de contrôle 16, et envoie un signal lorsqu'un choc est détecté.These burglar detection means 13, 15, 29 comprise for example an accelerometer 13, connected to the rotor. This accelerometer 13 is set to be sensitive to shocks. For example, it may be a piezoelectric accelerometer, or piezoresistive. The accelerometer is connected to the control unit 16, and sends a signal when an impact is detected.

De cette manière, lorsqu'une personne tente d'introduire un burin ou un tournevis
à coups de marteau, ou de frapper directement sur le verrou, l'accéléromètre 13 envoie un signal à l'unité de contrôle 16. L'unité de contrôle 16 reçoit le signal et active alors au moins un moyen de sécurisation du véhicule.In this way, when a person tries to introduce a chisel or a screwdriver
With the hammer, or hit directly on the latch, the accelerometer 13 sends a signal to the control unit 16. The control unit 16 receives the signal and then activates at least one means of securing the vehicle.

Les moyens de détection d'une effraction 13, 15, 29 peuvent comporter en outre un détecteur de débrayage 15, coopérant avec l'organe d'indexation 11. Un mode réalisation d'un tel détecteur de débrayage 15 est représenté en figure 2 et 3.The tamper detection means 13, 15, 29 may further comprise a clutch detector 15 cooperating with the indexing member 11. An embodiment of such a clutch detector 15 is shown in FIG. figure 2 and 3 .

L'organe d'indexation 11 peut basculer entre deux positions, l'une embrayée, où l'organe d'indexation 11 maintient le stator intermédiaire 5 solidaire en rotation du corps fixe 3, et l'autre, escamotée, où le stator intermédiaire 5 est libre en rotation, qui correspond donc à l'état débrayé du verrou 1. Sur la figure 2, l'organe d'indexation 11 est en position embrayée. Sur la figure 3, l'organe d'indexation 11 est en position escamotée, ce qui correspond à une translation axiale, vers la gauche sur les figures.The indexing member 11 can switch between two positions, one engaged, where the indexing member 11 holds the intermediate stator 5 integral in rotation with the fixed body 3, and the other, retracted, where the intermediate stator 5 is free to rotate, which corresponds to the disengaged state of the latch 1. On the figure 2 , the indexing member 11 is in the engaged position. On the figure 3 , the indexing member 11 is in retracted position, which corresponds to an axial translation, to the left in the figures.

Le détecteur de débrayage 15 comporte un commutateur 17 électrique qui coopère avec l'organe d'indexation 11, et qui est destiné à être relié à l'unité de contrôle 16. Le commutateur 17 est relié à un pion 19. Le pion 19 est en contact avec une portion de face extérieure inclinée 21 de l'organe d'indexation 11. Lorsque l'organe d'indexation 11 est translaté en position escamotée, ce que matérialise la flèche 23, le pion 19 glisse le long de la portion de face extérieure inclinée 21, et est translaté axialement, ce que matérialise la flèche 25. Ce mouvement axial du pion 19 actionne le commutateur 17 qui envoie alors un signal à l'unité de contrôle 16 du véhicule.The clutch detector 15 comprises an electric switch 17 which cooperates with the indexing member 11, and which is intended to be connected to the control unit 16. The switch 17 is connected to a pin 19. The pin 19 is in contact with an inclined outer face portion 21 of the indexing member 11. When the indexing member 11 is translated into the retracted position, which materializes the arrow 23, the pin 19 slides along the portion of inclined outside face 21, and is translated axially, which materializes the arrow 25. This axial movement of the pin 19 actuates the switch 17 which then sends a signal to the control unit 16 of the vehicle.

Un exemple, destiné aux verrous 1 dont l'organe d'indexation 11 se déplace radialement lors de son basculement en position escamotée, est représenté en figure 4. Dans ce montage, le commutateur 17 est directement relié à l'organe d'indexation 11, qui active sans intermédiaire le commutateur 17 lors de son mouvement radial matérialisé par la double-flèche 27.An example, for locks 1 whose indexing member 11 moves radially when tilted in the retracted position, is shown in FIG. figure 4 . In this arrangement, the switch 17 is directly connected to the indexing member 11, which activates without intermediate the switch 17 during its radial movement represented by the double-arrow 27.

Le détecteur de débrayage 15 peut aussi selon un autre mode de réalisation comporter un détecteur magnétique de débrayage : l'organe d'indexation 11 comporte alors un aimant qui est approché, lors du basculement en position escamotée d'un dispositif associé, tel qu'une ampoule Reed (interrupteur à lame souple).The release detector 15 may also according to another embodiment comprise a magnetic declutching sensor: the indexing member 11 then comprises a magnet which is approached, when tilting in the retracted position of an associated device, such as a Reed bulb (soft blade switch).

Il est aussi envisagé de réaliser le détecteur de débrayage 15 au moyen d'un détecteur capacitif, piézoélectrique ou bien optique.It is also envisaged to make the clutch detector 15 by means of a capacitive, piezoelectric or optical detector.

Les figures 5 et 6 illustrent un exemple d'un moyen de détection d'une effraction 13, 15, 29, sous forme de détecteur de rotation 29 du stator intermédiaire 5 par rapport au corps fixe 3.The Figures 5 and 6 illustrate an example of a tamper detection means 13, 15, 29 in the form of a rotation detector 29 of the intermediate stator 5 with respect to the fixed body 3.

Le détecteur de rotation 29 comporte deux éléments de détection conjugués 31, 33, l'un 31 solidaire du stator intermédiaire 5, l'autre 33 solidaire du corps fixe. ces éléments de détection conjugués 31, 33 peuvent par exemple être une ampoule Reed et un aimant, ou bien deux contacts isolés.The rotation detector 29 comprises two conjugated detection elements 31, 33, one 31 integral with the intermediate stator 5, the other 33 integral with the fixed body. these conjugated detection elements 31, 33 may for example be a Reed bulb and a magnet, or two isolated contacts.

Les éléments de détection conjugués 31, 33 sont ainsi disposés qu'ils n'interagissent pas lorsque le stator intermédiaire 5 est dans la position fixe correspondant à l'état embrayé du verrou 1, mais qu'une rotation du stator intermédiaire 5 par rapport au corps fixe 3 amène lesdits éléments de détection 31, 33 à interagir, et de déclencher alors l'émission d'un signal vers l'unité de contrôle 16.The conjugated detection elements 31, 33 are thus arranged that they do not interact when the intermediate stator 5 is in the fixed position corresponding to the engaged state of the lock 1, but that a rotation of the intermediate stator 5 with respect to the fixed body 3 causes said detection elements 31, 33 to interact, and then triggers the transmission of a signal to the control unit 16.

La rotation du stator intermédiaire 5 par rapport au corps fixe 3 ne pouvant se faire que dans l'état débrayé, l'interaction des éléments de détection 31, 33 atteste un débrayage du verrou 1, et donc d'une tentative d'effraction.The rotation of the intermediate stator 5 with respect to the fixed body 3 can only be done in the disengaged state, the interaction of the detection elements 31, 33 atteste a disengagement of the lock 1, and thus an attempted burglary.

Le détecteur d'effraction peut également détecter une translation axiale du stator intermédiaire, laquelle intervient typiquement lors du débrayage.The burglar detector can also detect an axial translation of the intermediate stator, which typically occurs during the disengagement.

Le détecteur peut également détecter une translation axiale du rotor simultanée à la translation du stator intermédiaire ou non, par rapport au corps fixe, laquelle atteste du débrayage.The detector can also detect an axial translation of the rotor simultaneously with the translation of the intermediate stator or not, relative to the fixed body, which attests the disengagement.

L'invention a aussi pour objet un dispositif de sécurité 35 de véhicule automobile comprenant un verrou débrayable 1 comportant des moyens de détection d'une effraction 13, 15, 29 tel que décrit précédemment. Un tel dispositif de sécurité comporte un unité de contrôle 16 du véhicule configuré pour recevoir des signaux provenant des moyens de détection 13, 15, 29 d'une effraction du verrou 1, et des moyens de sécurisation du véhicule 37, déclenchés à la réception des signaux provenant des moyens de détection d'une effraction 13, 15, 29.The invention also relates to a motor vehicle safety device 35 comprising a disengageable lock 1 comprising tamper detection means 13, 15, 29 as described. previously. Such a safety device comprises a control unit 16 of the vehicle configured to receive signals from the detection means 13, 15, 29 of a break-in of the lock 1, and means for securing the vehicle 37, triggered on receipt of the signals from the tamper detection means 13, 15, 29.

Les moyens de sécurisation du véhicule 37 peuvent par exemple comporter des moyens d'inhibition de déverrouillage du véhicule lorsqu'une tentative d'effraction du verrou 1 est détectée, afin de rendre au moins temporairement impossible le déverrouillage du mécanisme de fermeture par action directe sur le mécanisme.The securing means of the vehicle 37 may for example comprise means for inhibiting the unlocking of the vehicle when an attempt to break the lock 1 is detected, in order to make it at least temporarily impossible to unlock the closing mechanism by direct action on the mechanism.

Les moyens de sécurisation du véhicule 37 peuvent aussi comporter des moyens d'inhibition de démarrage du véhicule lorsqu'une tentative d'effraction du verrou 1 est détectée, afin de rendre impossible au moins temporairement le démarrage du véhicule, même si une personne a réussi à s'introduire dans le véhicule par effraction.The securing means of the vehicle 37 may also include vehicle start inhibiting means when an attempt to break the lock 1 is detected, in order to make it impossible at least temporarily to start the vehicle, even if a person has succeeded. to break into the vehicle.

Les moyens de sécurisation du véhicule peuvent 37 en outre comporter des moyens d'inhibition de déverrouillage de la direction lorsqu'une tentative d'effraction du verrou 1 est détectée, afin d'empêcher le déverrouillage de la direction, et donc la conduite du véhicule, suite à une effraction.The means for securing the vehicle may further comprise means for inhibiting the unlocking of the steering when an attempt to break the lock 1 is detected, in order to prevent the unlocking of the steering, and thus the driving of the vehicle. following a break-in.

Enfin, les moyens de sécurisation du véhicule 37 peuvent encore comporter des moyens d'activation des freins du véhicule lorsqu'une tentative d'effraction du verrou est détectée, configurés pour activer les freins du véhicule lorsqu'une tentative d'effraction du verrou 1 est détectée.Finally, the securing means of the vehicle 37 may further comprise means for activating the brakes of the vehicle when an attempt to break the lock is detected, configured to activate the brakes of the vehicle when an attempt to break the lock 1 is detected.

L'invention permet donc d'obtenir un dispositif de sécurité de véhicule automobile 3 5, dans lequel le verrou débrayable 1 n'est plus un élément passif, mais un élément actif, coopérant avec les moyens de sécurisation du véhicule 37 de dispositif de sécurité 35 via une unité de contrôle 16. En comportant des moyens de détection d'une effraction 13, 15, 29, le verrou débrayable 1 permet la mise en place automatique d'une réponse à ladite effraction pour rendre plus difficile voire impossible le vol du véhicule et/ou de son contenu.The invention therefore makes it possible to obtain a motor vehicle safety device 35, in which the disengageable lock 1 is no longer a passive element, but an active element, cooperating with the means of securing the vehicle 37 of the safety device. 35 via a unit of 16. By including means for detecting a break-in 13, 15, 29, the disengageable lock 1 allows the automatic introduction of a response to said break-in to make it more difficult or impossible for theft of the vehicle and / or its content.

Claims (10)

  1. A disengageable rotor lock (1) for a door leaf closing mechanism of a motor vehicle, comprising:
    - a fixed body (3) intended to be mounted secured to the door leaf,
    - an intermediate stator (5) held secured in rotation to the fixed body,
    - a rotor (7) including a housing (9) being able to receive a key,
    - locking members cooperating with the intermediate stator (5) to hold the rotor (7) fixed in rotation relative to the intermediate stator (5), and releasing the rotor (7) in rotation relative to the intermediate stator (5) during the introduction of an appropriate key into the housing (9),
    - an indexing member (11), blocking the intermediate stator (5) in rotation relative to the fixed body (3), and releasing the intermediate stator (5) when a torque is exerted on the rotor (7) in a state fixed in rotation relative to the intermediate stator (5),
    - means for detecting an attempted break (13, 15, 29) of the lock (1) intended to be linked to a safety device of the vehicle,
    characterized in that the means for detecting an attempted break of the lock (13, 15, 29) include means for detecting an axial translation of the intermediate stator (5) relative to the fixed body (3).
  2. The lock according to claim 1, characterized in that the means for detecting an attempted break (13, 15, 29) of the lock (1) include at least one accelerometer (13) capable of detecting blows to the lock.
  3. The lock according to at least any of the preceding claims, characterized in that the means for detecting an attempted break (13, 15, 29) of the lock (1) comprise mating detection elements (31, 33) interacting when the intermediate stator (5) rotates relative to the fixed body (3).
  4. The lock according to claim 3, characterized in that the mating detection elements (31, 33) are a Reed bulb and a magnet.
  5. The lock according to claim 3, characterized in that the mating detection elements (31, 33) are two insulated contacts.
  6. A safety device (35) for a motor vehicle including at least one disengageable lock (1) according to at least any of the preceding claims, characterized in that said disengageable lock (1) is linked to a control unit (16) capable of controlling at least one vehicle securing means (37).
  7. The device according to claim 6, characterized in that the at least one vehicle securing means (37) includes means for inhibiting an unlocking of the closing mechanisms when an attempted break of the lock (1) is detected.
  8. A device according to claim 6 or 7, characterized in that the at least one vehicle securing means (37) includes means for inhibiting the starting of the vehicle when an attempted break of the lock (1) is detected.
  9. The device according to any of claims 6 to 8, characterized in that the at least one vehicle securing means (37) includes means for activating a blocking of the direction when an attempted break of the lock (1) is detected.
  10. The device according to any of claims 6 to 9, characterized in that the at least one vehicle securing means (37) includes means for activating brakes of the vehicle when an attempted break of the lock (1) is detected.
EP15176177.2A 2010-06-30 2011-06-29 Disengageable lock Not-in-force EP2944745B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1002758A FR2962146B1 (en) 2010-06-30 2010-06-30 DEBRAYABLE LATCH
EP11728008.1A EP2619386B1 (en) 2010-06-30 2011-06-29 Disengageable lock

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP11728008.1A Division-Into EP2619386B1 (en) 2010-06-30 2011-06-29 Disengageable lock
EP11728008.1A Division EP2619386B1 (en) 2010-06-30 2011-06-29 Disengageable lock

Publications (2)

Publication Number Publication Date
EP2944745A1 EP2944745A1 (en) 2015-11-18
EP2944745B1 true EP2944745B1 (en) 2017-11-15

Family

ID=43928132

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15176177.2A Not-in-force EP2944745B1 (en) 2010-06-30 2011-06-29 Disengageable lock
EP11728008.1A Not-in-force EP2619386B1 (en) 2010-06-30 2011-06-29 Disengageable lock

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11728008.1A Not-in-force EP2619386B1 (en) 2010-06-30 2011-06-29 Disengageable lock

Country Status (5)

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US (1) US9133648B2 (en)
EP (2) EP2944745B1 (en)
JP (1) JP5893615B2 (en)
FR (1) FR2962146B1 (en)
WO (1) WO2012001047A1 (en)

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Also Published As

Publication number Publication date
JP2013529734A (en) 2013-07-22
US20130233031A1 (en) 2013-09-12
JP5893615B2 (en) 2016-03-23
FR2962146B1 (en) 2013-05-17
EP2619386B1 (en) 2015-08-26
FR2962146A1 (en) 2012-01-06
US9133648B2 (en) 2015-09-15
WO2012001047A1 (en) 2012-01-05
EP2944745A1 (en) 2015-11-18
EP2619386A1 (en) 2013-07-31

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