EP0561662B1 - Burglar proof cylinder lock with tumbler pins, especially for cars - Google Patents

Burglar proof cylinder lock with tumbler pins, especially for cars Download PDF

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Publication number
EP0561662B1
EP0561662B1 EP19930400542 EP93400542A EP0561662B1 EP 0561662 B1 EP0561662 B1 EP 0561662B1 EP 19930400542 EP19930400542 EP 19930400542 EP 93400542 A EP93400542 A EP 93400542A EP 0561662 B1 EP0561662 B1 EP 0561662B1
Authority
EP
European Patent Office
Prior art keywords
housing
key
rotor
lock
lock according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930400542
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German (de)
French (fr)
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EP0561662A1 (en
Inventor
Daniel Hagry
Michel Jouffroy
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.)
Antivols Simplex SA
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Antivols Simplex SA
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Filing date
Publication date
Application filed by Antivols Simplex SA filed Critical Antivols Simplex SA
Publication of EP0561662A1 publication Critical patent/EP0561662A1/en
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Publication of EP0561662B1 publication Critical patent/EP0561662B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member

Definitions

  • the present invention relates generally to a burglar-resistant piston lock, in particular for a motor vehicle.
  • a lock of the type comprising a stator in which a rotor pivots comprising a housing sliding axially inside which the pistons are housed.
  • This housing comprises, at its end opposite to the entry of the key, a coupling nose intended to cooperate with a recess arranged in a driver of a control arm of a lock.
  • the present invention solves these problems and proposes for this purpose a burglar-resistant piston lock, in particular for a motor vehicle comprising a stator, a rotor, pistons mounted in a housing of the rotor, said housing being able to slide axially under the action of an axial pressure exerted by a conforming key head against a stop of said housing so that a coupling nose of the housing comes into engagement with a recess of a coach, characterized in that means are provided whose action, after a first axial push of the key, keeps the coupling nose engaged with the recess of the coach .
  • said means consist of a pin spring, a first branch of which cooperates with a notch in the coupling nose and a second branch of which cooperates with a notch of the rotor.
  • a lock according to the invention comprising a stator 10 forming the body of the lock inside which pivots a rotor 12 which has a housing 14 which can slide axially.
  • This housing 14 comprises, at its end opposite the entry of the key, a coupling nose 16 cooperating with a recess 18 of a driver 20 of the control arm 22 of a lock, for example of a door or of a motor vehicle trunk.
  • the housing has radial bores 24 opening into the key channel 26 of the rotor 12 and in which are housed pistons 28 returned to the channel 26 by springs 30.
  • the rotor 12 and its housing 14 pivot freely in the body 10, while being angularly locked, key removed (FIG. 1) by a ball 32 returned by a spring 34 against a recess 36 of the stator 10.
  • the pistons 28 have a groove 38, situated at a variable height to constitute a code corresponding to the notching of the key 40, so that, when this key is introduced (FIG. 2) the grooves 38 of the pistons 28 are aligned axially.
  • the key channel 26 is terminated by a stop 42 with which the end of the key 40 cooperates.
  • a conforming key 40 aligns the grooves 38 of the pistons 28 thereby freeing the rotor 12 and its housing 14 in rotation and in translation.
  • the lock comprises means making it possible to keep the nose 16 engaged with the driver 20 and this without having to exert a permanent axial thrust on the key 40.
  • These means consist of a pin spring 44, one of the branches 46 (FIG. 3) of which cooperates with a notch 48 in the coupling nose 16 and of which the other branch 50 cooperates with a notch 52 of the rotor 12.
  • branches 46.50 of the pin extend transversely relative to the axis of the rotor 12.
  • branches 46 and 50 of the spring 44 are parallel and cooperate with notches 48 and 52 preferably having a triangular shape.
  • the notches 48 and 52 are offset axially so that the spring 44 is inclined (on the left in FIG. 1) and thus exerts on the 'rotor assembly 12 - housing 14 a push from the right to the left in the figure thus helping to avoid any engagement of the nose 16 with the driver 20.
  • the spring 44 due to the axial offset of the notches 48 and 52, thus occupies a first stable position due to the prestressing of which its branches 46.50 are the object.
  • the spring 44 thus occupies a second stable position still due to the preload of its branches 46.50. We can therefore consider the spring 44 as a bistable means for holding the housing 14 in position.

Description

La présente invention concerne d'une manière générale un verrou à pistons anti-effraction, notamment pour véhicule automobile.The present invention relates generally to a burglar-resistant piston lock, in particular for a motor vehicle.

Elle concerne plus particulièrement un verrou du type comprenant un stator dans lequel tourillonne un rotor comportant un logement coulissant axialement à l'intérieur duquel sont logés les pistons.It relates more particularly to a lock of the type comprising a stator in which a rotor pivots comprising a housing sliding axially inside which the pistons are housed.

Ce logement comporte, à son extrémité opposée à l'entrée de la clé, un nez d'accouplement destiné à coopérer avec un évidement agencé dans un entraîneur d'un bras de commande d'une serrure.This housing comprises, at its end opposite to the entry of the key, a coupling nose intended to cooperate with a recess arranged in a driver of a control arm of a lock.

Lorsqu'une bonne clé est introduite, les pistons sont alignés, le rotor est libéré en rotation et le logement peut coulisser axialement de manière à ce que son nez d'accouplement s'enclenche avec l'évidement de l'entraîneur. Une rotation de la clé provoque alors l'actionnement de la serrure.When a good key is inserted, the pistons are aligned, the rotor is released in rotation and the housing can slide axially so that its coupling nose engages with the recess of the driver. A rotation of the key then causes the actuation of the lock.

Si un tel verrou donne globalement satisfaction sur le plan de la sécurité anti-effraction, son fonctionnement présente cependant certains inconvénients vis-à-vis du confort de l'utilisateur.If such a lock is generally satisfactory in terms of burglary security, its operation however has certain drawbacks vis-à-vis the comfort of the user.

En effet, pour actionner la serrure, il est nécessaire pour l'utilisateur d'exercer simultanément sur la clé une poussée axiale de manière à maintenir enclenchés nez du logement et entraîneur et un mouvement de rotation pour manoeuvrer ledit entraîneur.Indeed, to actuate the lock, it is necessary for the user to exert simultaneously on the key an axial thrust so as to keep the housing and driver nose engaged and a rotational movement to maneuver said coach.

Il arrive très souvent que la clé étant introduite dans le verrou, l'utilisateur exerce simplement un mouvement de rotation sur la clé, nez de logement et entraîneur ne sont plus enclenchés et le rotor tourne sans actionner la serrure, ce qui a pour effet de faire croire à l'utilisateur un mauvais fonctionnement de l'ensemble du verrou.It very often happens that the key being inserted into the lock, the user simply exerts a rotary movement on the key, the housing nose and the driver are no longer engaged and the rotor turns without actuating the lock, which has the effect of make the user believe that the lock assembly is not working properly.

La présente invention résout ces problèmes et propose à cet effet un verrou à pistons anti-effraction, notamment pour véhicule automobile comportant un stator, un rotor, des pistons montés dans un logement du rotor, ledit logement pouvant coulisser axialement sous l'action d'une pression axiale exercée par une tête de clé conforme contre une butée dudit logement de manière à ce qu'un nez d'accouplement du logement vienne à enclenchement avec un évidement d'un entraîneur, caractérisé en ce que des moyens sont prévus dont l'action, après une première poussée axiale de la clé, maintient à enclenchement le nez d'accouplement avec l'évidement de l'entraîneur.The present invention solves these problems and proposes for this purpose a burglar-resistant piston lock, in particular for a motor vehicle comprising a stator, a rotor, pistons mounted in a housing of the rotor, said housing being able to slide axially under the action of an axial pressure exerted by a conforming key head against a stop of said housing so that a coupling nose of the housing comes into engagement with a recess of a coach, characterized in that means are provided whose action, after a first axial push of the key, keeps the coupling nose engaged with the recess of the coach .

Selon une autre caractéristique de l'invention, lesdits moyens sont constitués d'un ressort en épingle dont une première branche coopère avec une encoche du nez d'accouplement et dont une seconde branche coopère avec une encoche du rotor.According to another characteristic of the invention, said means consist of a pin spring, a first branch of which cooperates with a notch in the coupling nose and a second branch of which cooperates with a notch of the rotor.

La présente invention sera mieux comprise à la lecture de la description qui va suivre en regard des dessins annexés dans lesquels :

  • la figure 1 est une vue schématique en coupe axiale d'un verrou selon l'invention, la clé étant retirée ;
  • la figure 2 est une vue analogue à la figure 1, après introduction de la clé ;
  • la figure 3 est une vue en coupe suivant la ligne A de la figure 2.
The present invention will be better understood on reading the description which follows with reference to the appended drawings in which:
  • Figure 1 is a schematic view in axial section of a lock according to the invention, the key being removed;
  • Figure 2 is a view similar to Figure 1, after insertion of the key;
  • FIG. 3 is a sectional view along line A of FIG. 2.

On se réfère tout d'abord à la figure 1, où l'on a représenté un verrou suivant l'invention comprenant un stator 10 formant corps du verrou à l'intérieur duquel tourillonne un rotor 12 qui comporte un logement 14 pouvant coulisser axialement.Referring first to Figure 1, where there is shown a lock according to the invention comprising a stator 10 forming the body of the lock inside which pivots a rotor 12 which has a housing 14 which can slide axially.

Ce logement 14 comporte, à son extrémité opposée à l'entrée de la clé, un nez d'accouplement 16 coopérant avec un évidement 18 d'un entraîneur 20 du bras de commande 22 d'une serrure, par exemple d'une portière ou d'un coffre de véhicule automobile.This housing 14 comprises, at its end opposite the entry of the key, a coupling nose 16 cooperating with a recess 18 of a driver 20 of the control arm 22 of a lock, for example of a door or of a motor vehicle trunk.

Le logement comporte des alésages radiaux 24 débouchant dans le canal de clé 26 du rotor 12 et dans lesquels sont logés des pistons 28 rappelés vers le canal 26 par des ressorts 30.The housing has radial bores 24 opening into the key channel 26 of the rotor 12 and in which are housed pistons 28 returned to the channel 26 by springs 30.

Le rotor 12 et son logement 14 pivotent librement dans le corps 10, tout en étant verrouillés angulairement, clé retirée (figure 1) par une bille 32 rappelée par un ressort 34 contre un évidement 36 du stator 10.The rotor 12 and its housing 14 pivot freely in the body 10, while being angularly locked, key removed (FIG. 1) by a ball 32 returned by a spring 34 against a recess 36 of the stator 10.

Les pistons 28 comportent une gorge 38, située à une hauteur variable pour constituer un code correspondant au crantage de la clé 40, de telle manière que, lorsque cette clé est introduite (figure 2) les gorges 38 des pistons 28 se trouvent alignées axialement.The pistons 28 have a groove 38, situated at a variable height to constitute a code corresponding to the notching of the key 40, so that, when this key is introduced (FIG. 2) the grooves 38 of the pistons 28 are aligned axially.

Le canal de clé 26 est terminé par une butée 42 avec laquelle coopère l'extrémité de la clé 40.The key channel 26 is terminated by a stop 42 with which the end of the key 40 cooperates.

Les différentes pièces constitutives d'un tel verrou ainsi que son fonctionnement ont été décrits et représentés notamment dans le document FR-A-2 588 602 auquel on se référera pour plus de détails.The various components of such a lock and its operation have been described and shown in particular in document FR-A-2 588 602 to which reference will be made for more details.

L'introduction d'une clé conforme 40 (figure 2) aligne les gorges 38 des pistons 28 libérant ainsi en rotation et en translation le rotor 12 et son logement 14.The introduction of a conforming key 40 (FIG. 2) aligns the grooves 38 of the pistons 28 thereby freeing the rotor 12 and its housing 14 in rotation and in translation.

Une poussée axiale sur la clé 40, dont l'extrémité appuie sur la butée 42 du logement 14, produit une translation dudit logement 14 dont le nez d'accouplement 16 vient se loger dans l'évidement 18 et une rotation de la clé 40 entraîne l'entraîneur 20 et son bras de commande 22 pour actionner la serrure.An axial thrust on the key 40, the end of which presses against the stop 42 of the housing 14, produces a translation of said housing 14 whose coupling nose 16 is housed in the recess 18 and a rotation of the key 40 causes the driver 20 and its control arm 22 for actuating the lock.

Suivant l'invention, le verrou comporte des moyens permettant de maintenir enclenchés le nez 16 avec l'entraîneur 20 et ceci sans avoir à exercer sur la clé 40 une poussée axiale permanente.According to the invention, the lock comprises means making it possible to keep the nose 16 engaged with the driver 20 and this without having to exert a permanent axial thrust on the key 40.

Ces moyens sont constitués par un ressort 44 en épingle dont l'une des branches 46 (figure 3) coopère avec une encoche 48 du nez d'accouplement 16 et dont l'autre branche 50 coopère avec une encoche 52 du rotor 12.These means consist of a pin spring 44, one of the branches 46 (FIG. 3) of which cooperates with a notch 48 in the coupling nose 16 and of which the other branch 50 cooperates with a notch 52 of the rotor 12.

Ainsi les branches 46,50 de l'épingle s'étendent transversalement par rapport à l'axe du rotor 12.Thus the branches 46.50 of the pin extend transversely relative to the axis of the rotor 12.

De préférence les branches 46 et 50 du ressort 44 sont parallèles et coopèrent avec des encoches 48 et 52 ayant de préférence une forme triangulaire.Preferably the branches 46 and 50 of the spring 44 are parallel and cooperate with notches 48 and 52 preferably having a triangular shape.

Bien entendu, lorsque le ressort 44 est en place dans les encoches 48 et 52 au moins une de ses branches 46,50 présente une précontrainte de manière à ce que le ressort 44 exerce en permanence une force de réaction vis-à-vis du logement 14.Of course, when the spring 44 is in place in the notches 48 and 52 at least one of its branches 46.50 has a preload so that the spring 44 permanently exerts a reaction force vis-à-vis the housing 14.

Lorsque la clé 40 n'est pas introduite et que le verrou est ainsi en position de repos, les encoches 48 et 52 sont décalées axialement de manière à ce que le ressort 44 soit incliné (sur la gauche figure 1) et exerce ainsi sur l'ensemble rotor 12 - logement 14 une poussée de la droite vers la gauche sur la figure contribuant ainsi à éviter tout enclenchement du nez 16 avec l'entraîneur 20.When the key 40 is not inserted and the lock is thus in the rest position, the notches 48 and 52 are offset axially so that the spring 44 is inclined (on the left in FIG. 1) and thus exerts on the 'rotor assembly 12 - housing 14 a push from the right to the left in the figure thus helping to avoid any engagement of the nose 16 with the driver 20.

Le ressort 44, du fait du décalage axial des encoches 48 et 52, occupe ainsi une première position stable du fait de la précontrainte dont ses branches 46,50 sont l'objet.The spring 44, due to the axial offset of the notches 48 and 52, thus occupies a first stable position due to the prestressing of which its branches 46.50 are the object.

Comme il a été expliqué plus haut, l'introduction d'une clé conforme 40 libère en rotation et en translation le rotor 12 et son logement 14 (figure 2).As explained above, the introduction of a conforming key 40 frees the rotor 12 and its housing 14 in rotation and in translation (FIG. 2).

Une poussée axiale sur la clé 40 permet au logement 14 de coulisser axialement et le nez d'accouplement 16 vient s'enclencher dans l'entraîneur 20. Il en résulte pour l'encoche 48 et donc pour la branche 46 du ressort 44 un déplacement axial de la gauche vers la droite sur la figure qui a pour résultat de mettre le ressort 44 dans une position inclinée cette fois vers la droite avec pour conséquence une force exercée par le ressort 44 qui maintient en position d'enclenchement le nez 16 avec l'entraîneur 20.An axial thrust on the key 40 allows the housing 14 to slide axially and the coupling nose 16 engages in the driver 20. This results for the notch 48 and therefore for the branch 46 of the spring 44 a displacement axial from left to right in the figure which results in putting the spring 44 in a tilted position this time to the right with the consequence of a force exerted by the spring 44 which maintains in position to engage the nose 16 with the driver 20.

Le ressort 44 occupe ainsi une seconde position stable toujours du fait de la précontrainte de ses branches 46,50. On peut donc considérer le ressort 44 comme un moyen bistable de maintien en position du logement 14.The spring 44 thus occupies a second stable position still due to the preload of its branches 46.50. We can therefore consider the spring 44 as a bistable means for holding the housing 14 in position.

L'utilisateur n'a plus alors qu'à effectuer un mouvement de rotation de la clé 40 pour actionner la serrure : toute poussée axiale est devenue superflue.The user then only has to carry out a rotation movement of the key 40 to actuate the lock: any axial thrust has become superfluous.

Bien entendu la présente invention ne se limite pas aux formes de réalisation décrites et représentées mais englobe toute variante ou modification que l'homme de l'art pourrait y apporter dans le cadre des revendications suivantes.Of course, the present invention is not limited to the embodiments described and shown but encompasses any variant or modification that a person skilled in the art could make within the framework of the following claims.

Claims (6)

  1. A theft-resistant piston type lock, especially for a motor vehicle, comprising a stator (10), a rotor (12), and pistons (28) mounted in a housing (14) in the rotor (12), the said housing (14) being able to slide axially under the action of axial pressure exerted by a matching key head (40) against an abutment (42) of the said housing (14), in such a way that a coupling nose (16) of the housing (14) comes into engagement with a recess (18) of a drive element (20), characterised in that means (44, 48, 52) are provided, the action of which, after a first axial thrust of the key (40), holds the coupling nose (16) in engagement with the recess (18) of the drive element (20).
  2. A lock according to Claim 1, characterised in that the said means comprise a hairpin spring (44), having a first branch (46) which cooperates with a notch (48) of the coupling nose (16), and a second branch (50) which cooperates with a notch (52) of the rotor (12).
  3. A lock according to Claim 2, characterised in that the branches (46, 50) of the hairpin (44) extend transversely with respect to the axis of the rotor (12).
  4. A lock according to Claim 2 or Claim 3, characterised in that the two branches (46, 50) are parallel.
  5. A lock according to Claim 2, characterised in that, when the key (40) is withdrawn, the notches (48, 52) are offset axially.
  6. A lock according to Claim 2, characterised in that the notches (48, 52) are triangular.
EP19930400542 1992-03-18 1993-03-02 Burglar proof cylinder lock with tumbler pins, especially for cars Expired - Lifetime EP0561662B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203218 1992-03-18
FR9203218A FR2688820B1 (en) 1992-03-18 1992-03-18 ANTI-INFRINGEMENT PISTON LOCK, ESPECIALLY FOR A MOTOR VEHICLE.

Publications (2)

Publication Number Publication Date
EP0561662A1 EP0561662A1 (en) 1993-09-22
EP0561662B1 true EP0561662B1 (en) 1995-10-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400542 Expired - Lifetime EP0561662B1 (en) 1992-03-18 1993-03-02 Burglar proof cylinder lock with tumbler pins, especially for cars

Country Status (4)

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EP (1) EP0561662B1 (en)
DE (1) DE69300607T2 (en)
ES (1) ES2085121T3 (en)
FR (1) FR2688820B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258151C1 (en) * 2002-12-10 2003-12-11 Tst Tresor Und Schlostechnik G Lock cylinder with electronically-controlled coupling allowing cylinder core rotated by inserted key to be coupled to lock nose

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9410845D0 (en) * 1994-05-31 1994-07-20 Kaba Locks Ltd Position setting device
DE10203783A1 (en) * 2002-01-31 2003-08-14 Valeo Securite Habitacle lock cylinders
DE102012022643B4 (en) * 2012-11-12 2015-06-25 Assa Abloy Sicherheitstechnik Gmbh Clutch for a lock cylinder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588602B2 (en) * 1984-10-12 1988-03-25 Antivols Simplex Sa FLAT KEY LOCK WITH ANTI-INFRINGEMENT PISTONS.
FR2658852B1 (en) * 1990-02-23 1992-06-19 Vachette Sa LATCH COMPRISING A STATOR IN WHICH A ROTATING MOUNT IS MOUNTED, FOR AT LEAST ONE ANGULAR RANGE, A ROTOR LINKED IN ROTATION TO A BEATER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258151C1 (en) * 2002-12-10 2003-12-11 Tst Tresor Und Schlostechnik G Lock cylinder with electronically-controlled coupling allowing cylinder core rotated by inserted key to be coupled to lock nose

Also Published As

Publication number Publication date
EP0561662A1 (en) 1993-09-22
FR2688820B1 (en) 1995-10-13
FR2688820A1 (en) 1993-09-24
DE69300607D1 (en) 1995-11-16
DE69300607T2 (en) 1996-03-21
ES2085121T3 (en) 1996-05-16

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