EP0731243A1 - Bolt with a disengageable rotor and car steering column lock with such a bolt - Google Patents

Bolt with a disengageable rotor and car steering column lock with such a bolt Download PDF

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Publication number
EP0731243A1
EP0731243A1 EP96103461A EP96103461A EP0731243A1 EP 0731243 A1 EP0731243 A1 EP 0731243A1 EP 96103461 A EP96103461 A EP 96103461A EP 96103461 A EP96103461 A EP 96103461A EP 0731243 A1 EP0731243 A1 EP 0731243A1
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EP
European Patent Office
Prior art keywords
rotor
key
lock
indexing
axial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96103461A
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German (de)
French (fr)
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EP0731243B1 (en
Inventor
Louis Canard
Pascal Olive
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.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Securite Habitacle SAS
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Publication date
Application filed by Valeo Securite Habitacle SAS filed Critical Valeo Securite Habitacle SAS
Publication of EP0731243A1 publication Critical patent/EP0731243A1/en
Application granted granted Critical
Publication of EP0731243B1 publication Critical patent/EP0731243B1/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 to a disengageable rotor lock.
  • the invention relates more particularly to a lock intended to be used for controlling a motor vehicle steering lock.
  • the steering lock comprises a housing mounted on the steering column and which receives a lock which controls a bolt which projects through an opening of the housing to cooperate with a rotary member of the steering column.
  • the main ones consist in acting on the lock, in particular by means of a false key.
  • a disengageable rotor lock are of the type comprising a rotor mounted journalling in an intermediate stator in the form of a bushing itself pivotally mounted in a fixed lock body, locking members such as flakes or pairs of pistons cooperating with the rotor and the intermediate stator to secure them in rotation in the absence of a key, or in the presence of a non-conforming key, and to release the rotor in rotation relative to the intermediate stator after introduction of a conforming key , and of the type comprising an angular indexing member of the intermediate stator relative to the fixed body which is mounted to move radially between an indexing position towards which it is resiliently recalled and in which it is received in a groove in the fixed body, and a retracted position in which it is erased radially inwards at least partially in a housing of the rotor, against an elastic restoring force.
  • the indexing member is for example produced in the form of an arm arranged in a longitudinal housing formed in the peripheral wall of the intermediate stator, the arm comprising, on its external radial face, a projection which, in the indexing position, is received in a longitudinal groove formed in the internal wall of the fixed lock body so as to make the intermediate stator integral in rotation with the fixed body, in the absence of a key, or in the presence of a conforming key.
  • a disengageable mechanism for controlling a lock has also been proposed, fitted in particular to a motor vehicle opening, of the type comprising a disengageable rotor lock as described in document FR-A-2,642,463.
  • the object of the present invention is to propose a new design of a disengageable rotor lock of the type mentioned above which overcomes the drawbacks which have just been mentioned.
  • the invention proposes a lock characterized in that it comprises an outlet member mounted rotationally in the fixed lock body and which is linked in rotation to the rotor by disengageable drive means, the disengagement of which is caused by the stator indexing member when it is in the retracted position, and in that the disengageable drive means immobilize the output member in rotation relative to the fixed lock body when they are in the disengaged position under the action of the indexing member.
  • the anti-theft device 10 illustrated in FIGS. 1 and 2 is essentially constituted by an anti-theft device 12, by a latch 14, and by a retaining plug 16.
  • the anti-theft housing 12 is a part produced by molding comprising a part 18 of generally cylindrical tubular shape which is essentially constituted by a cylindrical annular skirt 22 which determines a hollow tubular housing 24 which is intended to receive the components of the latch 14.
  • the part 18 also comprises, in the extension of the annular skirt 22, a cylindrical annular skirt 26 which delimits a housing 28 of larger diameter than the housing 24 which is designed to receive a cylindrical part of complementary diameter 30 of the body of the retaining plug 16.
  • the part 18 of the housing 12 has an open end 31 through which partially protrudes an end 32 of the rotor or barrel 34 of the latch 14 which has a slot 36 (see FIG. 2) for the introduction by the driver of a conforming key of the lock for the anti-theft control.
  • the rotor 34 is mounted for rotation in an intermediate stator in the form of a socket 38 which is itself mounted for rotation in a tubular jacket 40.
  • the tubular jacket 40 is received in the housing 28 of the part 18 of the housing 12 of the anti-theft device 10 in which it is immobilized in rotation by means of an axial pin 42 which is received in a notch 44 formed in the surface cylindrical outer 46 of the liner 40 and in a complementary notch (not shown) formed in the inner cylindrical wall of the housing 24 which receives the liner 40.
  • the tubular jacket 40 thus constitutes the fixed lock body 14 within the meaning of the invention.
  • the internal cylindrical wall 48 of the tubular fixed body 40 has two diametrically opposite axial grooves 50 and 52 whose function will be explained below and which extend axially from the annular end face 54 of the jacket 40 facing axially towards the open end of the housing 28, that is to say in the direction of the closure plug 16.
  • the intermediate stator 38 is a socket-shaped part comprising a main internal bore 56 in which the cylindrical body 58 of the rotor 34 is rotatably mounted, which receives a set of flakes 60 and springs 62, according to a known design, so as to secure in rotation the rotor 34 and the intermediate stator 38 as long as a conforming key has not been introduced into the slot 36 of the latch 14.
  • the axial end portion 64 of the intermediate stator 38 opposite the end 32 of the rotor comprising the insertion slot 36 has a radial lumen 66 opening at its two ends in which a finger-shaped indexing member is slidably mounted 68.
  • the indexing finger 68 has a tab 70 which, in particular during the assembly of the components, avoids complete radial exhaust to the outside of the indexing finger 68 out of the lumen 66.
  • the outer radial end 72 of the indexing finger 68 has an inverted V-shaped profile which is intended to be received in the axial groove 50 of the fixed body 40 and whose opposite and inclined edges 74 are provided to cooperate with the edges vis-à-vis 76 of the longitudinal groove 50 which also has an inverted V-shaped profile.
  • This known arrangement makes it possible to ensure indexing and immobilization in rotation of the intermediate stator 38 relative to the fixed body 40 when the indexing finger 68 is biased radially outwards, as will be explained below, and that it is received in groove 50.
  • the radial inner end face 78 of the indexing finger 68 extends opposite the axial free end part 80 of the rotor 34 which is opposite the end 32 of the latter comprising the slot 36.
  • the axial end part 80 is produced in the form of a cylindrical annular skirt 82 which delimits an internal bore 84.
  • the axial end portion 80 has an through axial slot 86 which is capable of extending, as a function of the relative angular position of the rotor relative to the intermediate stator, facing the light or slot 66.
  • the width of the slot 86 is also slightly greater than the width of the indexing finger 68 so that the latter can penetrate radially inwards into the slot 86 so as to disappear radially at least partially in the housing of the rotor 34 constituted by the through axial slot 86.
  • the end portion 32 of the rotor 34 also includes a notch 88 intended to receive a roller 90 which cooperates with a ramp formed in the bottom of the housing 24 to cause an axial displacement of the assembly formed by the stator intermediate and the rotor 34 during the axial introduction to the bottom of a conforming key, this axial displacement making it possible to control, for example, an electrical switch associated with the anti-theft device (not shown).
  • the latch 14 also includes an outlet member 92 which is a member mounted for rotation in the fixed latch body 40 along the axis of rotation X-X common to the rotor 34 and to the stator 38.
  • the outlet member 92 comprises a main part of generally cylindrical shape 94 which constitutes the part for guiding in rotation of the drive member 92 in the internal cylindrical surface 48 of the jacket constituting the fixed body 40.
  • the main part 94 of the outlet member 92 comprises a crank pin 98 which is designed to cooperate, in a manner which will not be described here in more detail, with a cam of a slide 100 which is mounted sliding radially in the plug 16 and which acts on a locking bolt 102 which is capable of being received in a notch (not shown) of the steering column 104.
  • the main part 94 of the outlet member 92 extends axially by a cylindrical coaxial extension 112 which is intended to be received in rotation in the internal bore 84 of the rotor 34.
  • the cylindrical axial extension 112 comprises, substantially over its entire length, an axial slot 116 with parallel edges which opens radially at its two ends.
  • the slot 116 also opens axially into a radial groove 118 formed diametrically in the radial end face 106 of the main part 94 of the outlet member 92.
  • the slot 116 and the groove 118 receive in radial sliding a key 120.
  • the key 120 essentially consists of a guide rod 122 which is received and guided in radial sliding in the groove 118 and whose free end 123 located radially outwards is extended axially by an arm 124 with parallel faces which is likely to be received by sliding in the slot 116.
  • the arm 124 is extended radially inwards by a complementary guide rod 126.
  • the width of the arm 124 constituting the key 120 and of the complementary guide rod 126 are slightly less than the width of the slot 116 so as to allow the radial sliding movement of the key 120.
  • the active part of the key 120 within the meaning of the invention, has a section whose profile is in the form of an inverted V which delimits two opposite inclined surfaces 128 which, as will be explained below, are capable of cooperating with the parallel edges 130 of the through axial slot 86 of the axial end portion 80 of the rotor 34.
  • the transverse thickness of the key 120 is of course slightly less than the width of the slot of the axial groove 86.
  • a helical compression spring 132 is arranged between the underside of the arm 124 and a bearing surface 136 (see FIG. 4) formed opposite in the axial extension 112 of the outlet member 92.
  • the height, considering FIG. 2, of the main guide rod 122, is such that the distance which separates its outer radial end 124 from its other radial end 126 is slightly less than the diameter of the main part 94.
  • the second end 127 of the guide rod 122 constitutes the second end of the key 120, within the meaning of the invention, and it is capable of being received in the axial groove 52 formed in the internal cylindrical wall 48 of the fixed body 40 .
  • the upper face 138 of the arm 124 constituting the active part of the key 120 is capable of cooperate with the lower radial face 78 of the indexing finger 68 when these components are aligned.
  • the inner radial face 78 of the indexing finger 68 is also capable of cooperating with the external cylindrical surface 81 of the axial end portion 80 of the rotor 34 as will be explained below.
  • the intermediate stator 38 is immobilized in rotation relative to the fixed body 40 due to the cooperation of the indexing finger 68 with the longitudinal groove 50.
  • the rotor 34 is immobilized in rotation relative to the intermediate stator 38 in the angular position illustrated in FIG. 4 in which the indexing finger 68 extends opposite the axial slot 86 of the part 80 of the rotor 34.
  • the active part 120 of the key for driving the output member 92 bears radially outward against the internal radial face 78 of the indexing finger 68 under the action of the spring 132 which bears against the surface 136.
  • the active part 120 of the drive key is received in the axial groove 86 and it is therefore impossible to fraudulently cause rotation of the output member 92 because the rotor 34 is itself immobilized in rotation relative to the intermediate stator 38 which is immobilized in rotation relative to the fixed body 40.
  • This normal operation corresponds to the introduction of a conforming key into the lock, through the slot 36.
  • the active part of the key 120 is biased to bear radially outward against the concave cylindrical surface of the internal bore 56 of the rotor 38.
  • the key 120 therefore normally occupies the same radial position relative to the rotor 34 and to the extension 112 as that illustrated in FIGS. 4 and 5.
  • FIGS. 8 and 9 show the relative positions occupied by the various components in the case of the introduction of a non-conforming key.
  • This first erasure or retraction of the indexing finger 68 has the first consequence of rendering the assembly constituted by the intermediate stator 38 and the rotor 34 idle in rotation relative to the fixed body 40.
  • the indexing finger 68 By penetrating radially inwards into the slot 86, the indexing finger 68, via its inner radial end face 78 also causes the active part of the key 120 to move radially inwards. is guided in the slot 116, and this against the elastic return force provided by the spring 132.
  • the thief therefore does not cause any rotation drive of the exit member 92 via the rotor 34 because the latter no longer drives the key 120 which has faded radially inwards in the slot 116 due to the cooperation of its inclined surfaces in inverted V 128 with the parallel edges 130 of the through axial slot 86.
  • the lock 14 according to the invention which has just been described is therefore not only of the disengageable type but it provides greater security insofar as it is impossible for a thief to cause a rotation of the exit member 92 in l 'absence of a conforming key, even when the thief seeks to act directly on the output member 92, for example by trying to rotate the latter by acting on the coaxial output rod 140 which is intended to act on a switch rotary associated with the lock (not shown).

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  • Lock And Its Accessories (AREA)

Abstract

The bolt (14) has a rotor (34) revolving in an intermediate stator (38) also rotating in the bolt fixed body. Pairs of locking pistons engage the rotor and intermediate stator (38) to make them rotate together in the absence of a key. The key comprises an indexing finger (68) which angularly indexes the intermediate stator relative to the fixed body which can move radially between indexing and retracted positions. The finger is returned by a spring (132) into its indexing position where it is received in a groove (50) in the fixed body. In the retracted position it is withdrawn radially inwards into a housing in the rotor, against a spring force. An outlet part (92) rotating in the bolt fixed body is connected to rotate with the rotor by a releasable drive (120). The drive release is caused by indexing the stator when it is in the retracted position. The release drive immobilises the outlet part in rotation relative to the bolt fixed body when they are in the released position under the action of the finger.

Description

La présente invention concerne un verrou à rotor débrayable.The present invention relates to a disengageable rotor lock.

L'invention concerne plus particulièrement un verrou destiné à être utilisé pour la commande d'un antivol de direction de véhicule automobile.The invention relates more particularly to a lock intended to be used for controlling a motor vehicle steering lock.

Selon une conception connue, l'antivol de direction comporte un boîtier monté sur la colonne de direction et qui reçoit un verrou qui commande un pêne qui fait saillie à travers une ouverture du boîtier pour coopérer avec un organe rotatif de la colonne de direction.According to a known design, the steering lock comprises a housing mounted on the steering column and which receives a lock which controls a bolt which projects through an opening of the housing to cooperate with a rotary member of the steering column.

Parmi les divers modes d'effraction visant à aboutir à la libération de la colonne de direction, les principaux consistent à agir sur le verrou, notamment au moyen d'une fausse clef.Among the various methods of break-in aimed at leading to the release of the steering column, the main ones consist in acting on the lock, in particular by means of a false key.

Afin de parer à de tels agissements, il a déjà été proposé de nombreuses conceptions de verrous du type à rotor débrayable qui empêchent toute action positive de dégagement du pêne de l'antivol tant qu'une clef conforme n'est pas introduite dans le verrou.In order to counter such acts, numerous lock designs of the disengageable rotor type have already been proposed which prevent any positive action of releasing the bolt from the anti-theft device until a conforming key is introduced into the lock. .

Ces différentes conception d'un verrou à rotor débrayable sont du type comportant un rotor monté tourillonnant dans un stator intermédiaire en forme de douille lui-même monté pivotant dans un corps fixe de verrou, des organes de verrouillage tels que des paillettes ou des couples de pistons coopérant avec le rotor et le stator intermédiaire pour les solidariser en rotation en l'absence de clef, ou en présence d'une clef non conforme, et pour libérer le rotor en rotation par rapport au stator intermédiaire après introduction d'une clef conforme, et du type comportant un organe d'indexation angulaire du stator intermédiaire par rapport au corps fixe qui est monté mobile radialement entre une position d'indexation vers laquelle il est rappelé élastiquement et dans laquelle il est reçu dans une rainure du corps fixe, et une position escamotée dans laquelle il est effacé radialement vers l'intérieur au moins en partie dans un logement du rotor, à l'encontre d'un effort élastique de rappel.These different designs of a disengageable rotor lock are of the type comprising a rotor mounted journalling in an intermediate stator in the form of a bushing itself pivotally mounted in a fixed lock body, locking members such as flakes or pairs of pistons cooperating with the rotor and the intermediate stator to secure them in rotation in the absence of a key, or in the presence of a non-conforming key, and to release the rotor in rotation relative to the intermediate stator after introduction of a conforming key , and of the type comprising an angular indexing member of the intermediate stator relative to the fixed body which is mounted to move radially between an indexing position towards which it is resiliently recalled and in which it is received in a groove in the fixed body, and a retracted position in which it is erased radially inwards at least partially in a housing of the rotor, against an elastic restoring force.

Selon une conception connue, l'organe d'indexation est par exemple réalisé sous la forme d'un bras agencé dans un logement longitudinal formé dans la paroi périphérique du stator intermédiaire, le bras comportant, sur sa face radiale externe, une saillie qui, dans la position d'indexation, est reçue dans une rainure longitudinale formée dans la paroi interne du corps fixe de verrou de manière à rendre le stator intermédiaire solidaire en rotation du corps fixe, en l'absence de clef, ou en présence d'une clef conforme.According to a known design, the indexing member is for example produced in the form of an arm arranged in a longitudinal housing formed in the peripheral wall of the intermediate stator, the arm comprising, on its external radial face, a projection which, in the indexing position, is received in a longitudinal groove formed in the internal wall of the fixed lock body so as to make the intermediate stator integral in rotation with the fixed body, in the absence of a key, or in the presence of a conforming key.

Il a également été proposé un mécanisme débrayable de commande d'une serrure, équipant notamment un ouvrant de véhicule automobile, du type comportant un verrou à rotor débrayable tel que décrit dans le document FR-A-2.642.463.A disengageable mechanism for controlling a lock has also been proposed, fitted in particular to a motor vehicle opening, of the type comprising a disengageable rotor lock as described in document FR-A-2,642,463.

Toutes ces conceptions connues de verrous a rotor débrayable ne sont pas entièrement satisfaisantes, notamment dans le cas d'un verrou de commande d'un antivol de véhicule automobile dans la mesure où il est possible d'agir frauduleusement pour provoquer directement la rotation de l'organe de commande du pêne qui est lié en rotation au rotor, notamment après que le voleur ait rendu l'ensemble constitué par le stator intermédiaire et le rotor fou en rotation par rapport au corps fixe de verrou en agissant au moyen d'une fausse clef.All these known designs of disengageable rotor locks are not entirely satisfactory, in particular in the case of a control lock of a motor vehicle anti-theft device in so far as it is possible to act fraudulently to directly cause the rotation of the control member of the bolt which is linked in rotation to the rotor, in particular after the thief has returned the assembly constituted by the intermediate stator and the idler rotor in rotation relative to the fixed body of the lock by acting by means of a dummy key.

La présente invention a pour but de proposer une nouvelle conception d'un verrou à rotor débrayable du type mentionné précédemment qui remédie aux inconvénients qui viennent d'être évoqués.The object of the present invention is to propose a new design of a disengageable rotor lock of the type mentioned above which overcomes the drawbacks which have just been mentioned.

Dans ce but, l'invention propose un verrou caractérisé en ce qu'il comporte un organe de sortie monté à rotation dans le corps fixe de verrou et qui est lié en rotation au rotor par des moyens débrayables d'entraînement dont le débrayage est provoqué par l'organe d'indexation du stator lorsqu'il est en position escamotée, et en ce que les moyens débrayables d'entraînement immobilisent l'organe de sortie en rotation par rapport au corps fixe de verrou lorsqu'ils sont en position débrayée sous l'action de l'organe d'indexation.To this end, the invention proposes a lock characterized in that it comprises an outlet member mounted rotationally in the fixed lock body and which is linked in rotation to the rotor by disengageable drive means, the disengagement of which is caused by the stator indexing member when it is in the retracted position, and in that the disengageable drive means immobilize the output member in rotation relative to the fixed lock body when they are in the disengaged position under the action of the indexing member.

Selon d'autres caractéristiques de l'invention :

  • l'organe d'indexation est monté coulissant radialement dans un logement du stator intermédiaire qui débouche en regard d'une fente axiale du rotor qui débouche dans un alésage interne du rotor qui reçoit à rotation un prolongement axial cylindrique de l'organe de sortie, et les moyens débrayables d'entraînement de l'organe de sortie comportent une clavette montée coulissante radialement dans une fente du prolongement de l'organe de sortie entre une position d'entraînement vers laquelle elle est rappelée élastiquement et dans laquelle une première extrémité de la clavette est reçue dans la fente axiale du rotor, et une position de débrayage dans laquelle la première extrémité de la clavette est escamotée radialement vers l'intérieur dans le prolongement de l'organe de sortie et dans laquelle la seconde extrémité de la clavette fait saillie radialement vers l'extérieur pour être reçue dans un cran d'immobilisation formé dans le corps fixe de verrou ;
  • l'organe d'indexation présente un profil en V inversé et il est reçu dans une rainure axiale formée dans la paroi cylindrique interne du corps fixe de verrou;
  • la première extrémité de la clavette présente un profil en V inversé et elle est reçue dans une fente axiale à bords parallèles du rotor ;
  • un ressort de rappel est interposé entre la clavette et une surface d'appui de l'organe de sortie pour solliciter la clavette radialement vers l'extérieur;
  • en position de repos du verrou, la première extrémité de la clavette, sous l'action du ressort de rappel, sollicite l'organe d'indexation radialement vers l'extérieur vers sa position d'indexation ;
  • l'ensemble constitué par le stator intermédiaire, le rotor et l'organe de sortie est susceptible de coulisser axialement par rapport au corps de verrou, à l'encontre d'un effort élastique de rappel axial, lors de l'introduction d'une clef conforme.
According to other characteristics of the invention:
  • the indexing member is mounted to slide radially in a housing of the intermediate stator which opens opposite an axial slot in the rotor which opens into an internal bore of the rotor which receives in rotation a cylindrical axial extension of the outlet member, and the disengageable means for driving the output member comprise a key mounted to slide radially in a slot in the extension of the output member between a drive position towards which it is resiliently biased and in which a first end of the key is received in the axial slot of the rotor, and a disengaged position in which the first end of the key is retracted radially inward in the extension of the output member and in which the second end of the key projects radially outward to be received in an immobilization notch formed in the fixed lock body;
  • the indexing member has an inverted V profile and is received in an axial groove formed in the internal cylindrical wall of the fixed lock body;
  • the first end of the key has an inverted V profile and it is received in an axial slot with parallel edges of the rotor;
  • a return spring is interposed between the key and a bearing surface of the output member to urge the key radially outward;
  • in the latch rest position, the first end of the key, under the action of the return spring, biases the indexing member radially outward towards its indexing position;
  • the assembly constituted by the intermediate stator, the rotor and the output member is capable of sliding axially relative to the lock body, against an elastic axial restoring force, during the introduction of a conforming key.

L'invention propose également un antivol de direction de véhicule automobile du type mentionné précédemment, caractérisé en ce que le verrou est réalisé conformément aux enseignements de l'invention ;

  • selon une autre caractéristique de l'antivol, le corps fixe de verrou est une chemise tubulaire rapportée dans le boîtier de l'antivol.
The invention also provides a motor vehicle steering lock of the type mentioned above, characterized in that the lock is produced in accordance with the teachings of the invention;
  • according to another characteristic of the anti-theft device, the fixed lock body is a tubular jacket attached to the anti-theft case.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • La figure 1 est une vue en perspective éclatée qui illustre les principaux composants d'un antivol de direction de véhicule automobile réalisé conformément aux enseignements de l'invention, la vue représentant le boîtier de l'antivol par l'arrière ;
  • la figure 2 est une vue en perspective éclatée et à plus grande échelle des principaux composants du verrou à rotor débrayable, réalisé conformément aux enseignements de l'invention, qui équipe l'antivol illustré sur la figure 1 ;
  • la figure 3 est une vue en perspective du rotor du verrou ;
  • les figures 4 et 5 sont des vues en section radiale, selon les lignes 4-4 et 5-5 de la figure 2 qui illustrent les positions relatives des composants du verrou (illustrés en position assemblée) dans la position de repos du verrou ;
  • les figures 6 et 7 sont des vues similaires à celles des figures 4 et 5 sur lesquelles le verrou est illustré en position normale de fonctionnement après introduction d'une clef conforme ;
  • les figures 8 et 9 sont des vues similaires à celles des figures 4 et 5 sur lesquelles l'ensemble constitué par le rotor et le stator est illustré en position débrayée avec immobilisation en rotation de l'organe de sortie par la clavette ;
  • la figure 10 est une vue en perspective en section axiale partielle qui illustre l'antivol avec le verrou en position de repos ; et
  • les figures 11 et 12 sont des vues similaires à celle de la figure 10 sur lesquelles le verrou est illustré successivement en position d'utilisation et en position débrayée du rotor.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • Figure 1 is an exploded perspective view which illustrates the main components of a motor vehicle steering lock produced in accordance with the teachings of the invention, the view showing the housing of the lock from the rear;
  • FIG. 2 is an exploded perspective view on a larger scale of the main components of the disengageable rotor lock, produced in accordance with the teachings of the invention, which equips the anti-theft device illustrated in FIG. 1;
  • Figure 3 is a perspective view of the lock rotor;
  • Figures 4 and 5 are views in radial section, along lines 4-4 and 5-5 of Figure 2 which illustrate the relative positions of the components of the lock (illustrated in the assembled position) in the rest position of the lock;
  • Figures 6 and 7 are views similar to those of Figures 4 and 5 in which the lock is illustrated in the normal operating position after introduction of a conforming key;
  • Figures 8 and 9 are views similar to those of Figures 4 and 5 in which the assembly constituted by the rotor and the stator is illustrated in the disengaged position with immobilization in rotation of the output member by the key;
  • Figure 10 is a perspective view in partial axial section which illustrates the lock with the latch in the rest position; and
  • Figures 11 and 12 are views similar to that of Figure 10 in which the latch is illustrated successively in the position of use and in the disengaged position of the rotor.

L'antivol 10 illustré aux figures 1 et 2 est constitué pour l'essentiel par un boîtier d'antivol 12, par un verrou 14, et par un bouchon de retenue 16.The anti-theft device 10 illustrated in FIGS. 1 and 2 is essentially constituted by an anti-theft device 12, by a latch 14, and by a retaining plug 16.

Le boîtier d'antivol 12 est une pièce réalisée par moulage comportant une partie 18 de forme générale cylindrique tubulaire qui est constituée pour l'essentiel par une jupe annulaire cylindrique 22 qui détermine un logement tubulaire creux 24 qui est prévu pour recevoir les composants du verrou 14.The anti-theft housing 12 is a part produced by molding comprising a part 18 of generally cylindrical tubular shape which is essentially constituted by a cylindrical annular skirt 22 which determines a hollow tubular housing 24 which is intended to receive the components of the latch 14.

La partie 18 comporte également, dans le prolongement de la jupe annulaire 22, une jupe annulaire cylindrique 26 qui délimite un logement 28 de plus grand diamètre que le logement 24 qui est prévu pour recevoir une partie cylindrique de diamètre complémentaire 30 du corps du bouchon de retenue 16.The part 18 also comprises, in the extension of the annular skirt 22, a cylindrical annular skirt 26 which delimits a housing 28 of larger diameter than the housing 24 which is designed to receive a cylindrical part of complementary diameter 30 of the body of the retaining plug 16.

La partie 18 du boîtier 12 comporte une extrémité ouverte 31 à travers laquelle fait partiellement saillie une extrémité 32 du rotor ou barillet 34 du verrou 14 qui comporte une fente 36 (voir figure 2) pour l'introduction par le conducteur d'une clef conforme du verrou pour la commande de l'antivol.The part 18 of the housing 12 has an open end 31 through which partially protrudes an end 32 of the rotor or barrel 34 of the latch 14 which has a slot 36 (see FIG. 2) for the introduction by the driver of a conforming key of the lock for the anti-theft control.

Selon une conception connue, le rotor 34 est monté à rotation dans un stator intermédiaire en forme de douille 38 qui est lui-même monté à rotation dans une chemise tubulaire 40.According to a known design, the rotor 34 is mounted for rotation in an intermediate stator in the form of a socket 38 which is itself mounted for rotation in a tubular jacket 40.

La chemise tubulaire 40 est reçue dans le logement 28 de la partie 18 du boîtier 12 de l'antivol 10 dans laquelle elle est immobilisée en rotation par l'intermédiaire d'une goupille axiale 42 qui est reçue dans une encoche 44 formée dans la surface cylindrique externe 46 de la chemise 40 et dans une encoche complémentaire (non représentée) formée dans la paroi cylindrique interne du logement 24 qui reçoit la chemise 40.The tubular jacket 40 is received in the housing 28 of the part 18 of the housing 12 of the anti-theft device 10 in which it is immobilized in rotation by means of an axial pin 42 which is received in a notch 44 formed in the surface cylindrical outer 46 of the liner 40 and in a complementary notch (not shown) formed in the inner cylindrical wall of the housing 24 which receives the liner 40.

La chemise tubulaire 40 constitue ainsi le corps fixe de verrou 14 au sens de l'invention.The tubular jacket 40 thus constitutes the fixed lock body 14 within the meaning of the invention.

Comme on peut le voir sur la figure 2, la paroi cylindrique interne 48 du corps fixe tubulaire 40 comporte deux rainures axiales diamétralement opposées 50 et 52 dont la fonction sera explicitée par la suite et qui s'étendent axialement depuis la face annulaire d'extrémité 54 de la chemise 40 tournée axialement vers l'extrémité ouverte du logement 28, c'est-à-dire en direction du bouchon de fermeture 16.As can be seen in FIG. 2, the internal cylindrical wall 48 of the tubular fixed body 40 has two diametrically opposite axial grooves 50 and 52 whose function will be explained below and which extend axially from the annular end face 54 of the jacket 40 facing axially towards the open end of the housing 28, that is to say in the direction of the closure plug 16.

Le stator intermédiaire 38 est une pièce en forme de douille comportant un alésage interne principal 56 dans lequel est monté à rotation le corps cylindrique 58 du rotor 34 qui reçoit un ensemble de paillettes 60 et de ressorts 62, selon une conception connue, de manière à solidariser en rotation le rotor 34 et le stator intermédiaire 38 tant qu'une clef conforme n'a pas été introduite dans la fente 36 du verrou 14.The intermediate stator 38 is a socket-shaped part comprising a main internal bore 56 in which the cylindrical body 58 of the rotor 34 is rotatably mounted, which receives a set of flakes 60 and springs 62, according to a known design, so as to secure in rotation the rotor 34 and the intermediate stator 38 as long as a conforming key has not been introduced into the slot 36 of the latch 14.

La partie d'extrémité axiale 64 du stator intermédiaire 38 opposée à l'extrémité 32 du rotor comportant la fente d'introduction 36 comporte une lumière radiale 66 débouchante à ses deux extrémités dans laquelle est monté coulissant un organe d'indexation en forme de doigt 68.The axial end portion 64 of the intermediate stator 38 opposite the end 32 of the rotor comprising the insertion slot 36 has a radial lumen 66 opening at its two ends in which a finger-shaped indexing member is slidably mounted 68.

Le doigt 68 d'indexation comporte une patte 70 qui évite, notamment lors de l'assemblage des composants, l'échappement radial complet vers l'extérieur du doigt d'indexation 68 hors de la lumière 66.The indexing finger 68 has a tab 70 which, in particular during the assembly of the components, avoids complete radial exhaust to the outside of the indexing finger 68 out of the lumen 66.

L'extrémité radiale extérieure 72 du doigt d'indexation 68 présente un profil en forme de V inversé qui est prévu pour être reçu dans la rainure axiale 50 du corps fixe 40 et dont les bords opposés et inclinés 74 sont prévus pour coopérer avec les bords en vis-à-vis 76 de la rainure longitudinale 50 qui présente également un profil en forme de V inversé.The outer radial end 72 of the indexing finger 68 has an inverted V-shaped profile which is intended to be received in the axial groove 50 of the fixed body 40 and whose opposite and inclined edges 74 are provided to cooperate with the edges vis-à-vis 76 of the longitudinal groove 50 which also has an inverted V-shaped profile.

Cet agencement connu permet d'assurer une indexation et une immobilisation en rotation du stator intermédiaire 38 par rapport au corps fixe 40 lorsque le doigt d'indexation 68 est sollicité radialement vers l'extérieur, comme cela sera expliqué par la suite, et qu'il est reçu dans la rainure 50.This known arrangement makes it possible to ensure indexing and immobilization in rotation of the intermediate stator 38 relative to the fixed body 40 when the indexing finger 68 is biased radially outwards, as will be explained below, and that it is received in groove 50.

La face radiale d'extrémité intérieure 78 du doigt d'indexation 68 s'étend en regard de la partie d'extrémité libre axiale 80 du rotor 34 qui est opposée à l'extrémité 32 de celui-ci comportant la fente 36.The radial inner end face 78 of the indexing finger 68 extends opposite the axial free end part 80 of the rotor 34 which is opposite the end 32 of the latter comprising the slot 36.

La partie d'extrémité axiale 80 est réalisée sous la forme d'une jupe annulaire cylindrique 82 qui délimite un alésage interne 84.The axial end part 80 is produced in the form of a cylindrical annular skirt 82 which delimits an internal bore 84.

La partie axiale d'extrémité 80 comporte une fente axiale débouchante 86 qui est susceptible de s'étendre, en fonction de la position angulaire relative du rotor par rapport au stator intermédiaire, en regard de la lumière ou fente 66.The axial end portion 80 has an through axial slot 86 which is capable of extending, as a function of the relative angular position of the rotor relative to the intermediate stator, facing the light or slot 66.

La largeur de la fente 86 est également légèrement supérieure à la largeur du doigt d'indexation 68 de manière que celui-ci puisse pénétrer radialement vers l'intérieur dans la fente 86 de manière à s'effacer radialement au moins en partie dans le logement du rotor 34 constitué par la fente axiale débouchante 86.The width of the slot 86 is also slightly greater than the width of the indexing finger 68 so that the latter can penetrate radially inwards into the slot 86 so as to disappear radially at least partially in the housing of the rotor 34 constituted by the through axial slot 86.

Selon une conception connue, la partie d'extrémité 32 du rotor 34 comporte également une encoche 88 destinée à recevoir un galet 90 qui coopère avec une rampe formée dans le fond du logement 24 pour provoquer un déplacement axial de l'ensemble constitué par le stator intermédiaire et le rotor 34 lors de l'introduction axiale à fond d'une clef conforme, ce déplacement axial permettant de commander par exemple un commutateur électrique associé à l'antivol (non représenté).According to a known design, the end portion 32 of the rotor 34 also includes a notch 88 intended to receive a roller 90 which cooperates with a ramp formed in the bottom of the housing 24 to cause an axial displacement of the assembly formed by the stator intermediate and the rotor 34 during the axial introduction to the bottom of a conforming key, this axial displacement making it possible to control, for example, an electrical switch associated with the anti-theft device (not shown).

Conformément à l'invention, le verrou 14 comporte également un organe de sortie 92 qui est un organe monté à rotation dans le corps fixe de verrou 40 selon l'axe de rotation X-X commun au rotor 34 et au stator 38.According to the invention, the latch 14 also includes an outlet member 92 which is a member mounted for rotation in the fixed latch body 40 along the axis of rotation X-X common to the rotor 34 and to the stator 38.

L'organe de sortie 92 comporte une partie principale de forme générale cylindrique 94 qui constitue la partie de guidage en rotation de l'organe d'entraînement 92 dans la surface cylindrique interne 48 de la chemise constituant le corps fixe 40.The outlet member 92 comprises a main part of generally cylindrical shape 94 which constitutes the part for guiding in rotation of the drive member 92 in the internal cylindrical surface 48 of the jacket constituting the fixed body 40.

Sur sa face radiale d'extrémité 96, tournée vers le bouchon 16, la partie principale 94 de l'organe de sortie 92 comporte un maneton 98 qui est prévu pour coopérer, d'une manière qui ne sera pas ici décrite plus en détail, avec une came d'un coulisseau 100 qui est monté coulissant radialement dans le bouchon 16 et qui agit sur un pêne de verrouillage 102 qui est susceptible d'être reçu dans un cran (non représenté) de la colonne de direction 104.On its radial end face 96, facing the plug 16, the main part 94 of the outlet member 92 comprises a crank pin 98 which is designed to cooperate, in a manner which will not be described here in more detail, with a cam of a slide 100 which is mounted sliding radially in the plug 16 and which acts on a locking bolt 102 which is capable of being received in a notch (not shown) of the steering column 104.

Sur son autre face radiale d'extrémité 106 tournée vers la face radiale annulaire d'extrémité libre 108 du stator intermédiaire 38 et vers la face radiale annulaire d'extrémité 110 du rotor 34, la partie principale 94 de l'organe de sortie 92 se prolonge axialement par un prolongement coaxial cylindrique 112 qui est destiné à être reçu en rotation dans l'alésage interne 84 du rotor 34.On its other radial end face 106 facing the annular free end radial face 108 of the intermediate stator 38 and towards the annular radial end face 110 of the rotor 34, the main part 94 of the outlet member 92 extends axially by a cylindrical coaxial extension 112 which is intended to be received in rotation in the internal bore 84 of the rotor 34.

Le prolongement axial cylindrique 112 comporte, sensiblement sur toute sa longueur, une fente axiale 116 à bords parallèles qui débouche radialement à ses deux extrémités.The cylindrical axial extension 112 comprises, substantially over its entire length, an axial slot 116 with parallel edges which opens radially at its two ends.

La fente 116 débouche également axialement dans une rainure radiale 118 formée diamétralement dans la face radiale d'extrémité 106 de la partie principale 94 de l'organe de sortie 92.The slot 116 also opens axially into a radial groove 118 formed diametrically in the radial end face 106 of the main part 94 of the outlet member 92.

La fente 116 et la rainure 118 reçoivent en coulissement radial une clavette 120.The slot 116 and the groove 118 receive in radial sliding a key 120.

La clavette 120 est constituée pour l'essentiel par une tige de guidage 122 qui est reçue et guidée en coulissement radial dans la rainure 118 et dont l'extrémité libre 123 située radialement vers l'extérieur se prolonge axialement par un bras 124 à faces parallèles qui est susceptible d'être reçu en coulissement dans la fente 116.The key 120 essentially consists of a guide rod 122 which is received and guided in radial sliding in the groove 118 and whose free end 123 located radially outwards is extended axially by an arm 124 with parallel faces which is likely to be received by sliding in the slot 116.

Afin d'améliorer le guidage en coulissement de la clavette 120 dans la fente 116, le bras 124 se prolonge radialement vers l'intérieur par une tige complémentaire de guidage 126.In order to improve the sliding guide of the key 120 in the slot 116, the arm 124 is extended radially inwards by a complementary guide rod 126.

La largeur du bras 124 constituant la clavette 120 et de la tige complémentaire de guidage 126 sont légèrement inférieures à la largeur de la fente 116 de manière à permettre le mouvement de coulissement radial de la clavette 120.The width of the arm 124 constituting the key 120 and of the complementary guide rod 126 are slightly less than the width of the slot 116 so as to allow the radial sliding movement of the key 120.

La partie active de la clavette 120, au sens de l'invention, présente une section dont le profil est en forme de V inversé qui délimite deux surfaces inclinées opposées 128 qui, comme cela sera expliqué par la suite, sont susceptibles de coopérer avec les bords parallèles 130 de la fente axiale débouchante 86 de la partie axiale d'extrémité 80 du rotor 34.The active part of the key 120, within the meaning of the invention, has a section whose profile is in the form of an inverted V which delimits two opposite inclined surfaces 128 which, as will be explained below, are capable of cooperating with the parallel edges 130 of the through axial slot 86 of the axial end portion 80 of the rotor 34.

L'épaisseur transversale de la clavette 120, c'est-à-dire du bras 124, est bien entendu légèrement inférieure à la largeur de la fente de la rainure axiale 86.The transverse thickness of the key 120, that is to say of the arm 124, is of course slightly less than the width of the slot of the axial groove 86.

Un ressort hélicoïdal de compression 132 est agencé entre la face inférieure du bras 124 et une surface d'appui 136 (voir figure 4) formé en vis-à-vis dans le prolongement axial 112 de l'organe de sortie 92.A helical compression spring 132 is arranged between the underside of the arm 124 and a bearing surface 136 (see FIG. 4) formed opposite in the axial extension 112 of the outlet member 92.

La hauteur, en considérant la figure 2, de la tige principale de guidage 122, est telle que la distance qui sépare son extrémité radiale extérieure 124 de son autre extrémité radiale 126 est légèrement inférieure au diamètre de la partie principale 94.The height, considering FIG. 2, of the main guide rod 122, is such that the distance which separates its outer radial end 124 from its other radial end 126 is slightly less than the diameter of the main part 94.

La seconde extrémité 127 de la tige de guidage 122 constitue la seconde extrémité de la clavette 120, au sens de l'invention, et elle est susceptible d'être reçue dans la rainure axiale 52 formée dans la paroi cylindrique interne 48 du corps fixe 40.The second end 127 of the guide rod 122 constitutes the second end of the key 120, within the meaning of the invention, and it is capable of being received in the axial groove 52 formed in the internal cylindrical wall 48 of the fixed body 40 .

En position assemblée, les faces annulaires d'extrémité 108 et 110 du stator 38 et du rotor 34 sont en appui contre la face axiale d'extrémité 106 de la partie principale cylindrique 94 de l'organe de sortie 92.In the assembled position, the annular end faces 108 and 110 of the stator 38 and of the rotor 34 are in abutment against the axial end face 106 of the main cylindrical part 94 of the outlet member 92.

La face supérieure 138 du bras 124 constituant la partie active de la clavette 120 est susceptible de coopérer avec la face radiale inférieure 78 du doigt d'indexation 68 lorsque ces composants sont alignés.The upper face 138 of the arm 124 constituting the active part of the key 120 is capable of cooperate with the lower radial face 78 of the indexing finger 68 when these components are aligned.

La face radiale intérieure 78 du doigt d'indexation 68 est également susceptible de coopérer avec la surface cylindrique externe 81 de la portion axiale d'extrémité 80 du rotor 34 comme cela sera expliqué par la suite.The inner radial face 78 of the indexing finger 68 is also capable of cooperating with the external cylindrical surface 81 of the axial end portion 80 of the rotor 34 as will be explained below.

On décrira maintenant le mode de fonctionnement du verrou débrayable selon l'invention en se référant notamment aux figures 4 à 12.The mode of operation of the releasable lock according to the invention will now be described with particular reference to FIGS. 4 to 12.

Dans la position de repos du verrou illustrée de manière schématique aux figures 4 et 5, aucune clef, conforme ou non, n'est introduite dans le verrou.In the rest position of the lock illustrated schematically in Figures 4 and 5, no key, conforming or not, is inserted into the lock.

Le stator intermédiaire 38 est immobilisé en rotation par rapport au corps fixe 40 du fait de la coopération du doigt d'indexation 68 avec la rainure longitudinale 50.The intermediate stator 38 is immobilized in rotation relative to the fixed body 40 due to the cooperation of the indexing finger 68 with the longitudinal groove 50.

Le rotor 34 est immobilisé en rotation par rapport au stator intermédiaire 38 dans la position angulaire illustrée sur la figure 4 dans laquelle le doigt d'indexation 68 s'étend en regard de la fente axiale 86 de la partie 80 du rotor 34.The rotor 34 is immobilized in rotation relative to the intermediate stator 38 in the angular position illustrated in FIG. 4 in which the indexing finger 68 extends opposite the axial slot 86 of the part 80 of the rotor 34.

La partie active 120 de la clavette d'entraînement de l'organe de sortie 92 est en appui radialement vers l'extérieur contre la face radiale interne 78 du doigt d'indexation 68 sous l'action du ressort 132 qui prend appui contre la surface 136.The active part 120 of the key for driving the output member 92 bears radially outward against the internal radial face 78 of the indexing finger 68 under the action of the spring 132 which bears against the surface 136.

La partie active 120 de la clavette d'entraînement est reçue dans la rainure axiale 86 et il est donc impossible de provoquer frauduleusement une rotation de l'organe de sortie 92 car le rotor 34 est luimême immobilisé en rotation par rapport au stator intermédiaire 38 qui est immobilisé en rotation par rapport au corps fixe 40.The active part 120 of the drive key is received in the axial groove 86 and it is therefore impossible to fraudulently cause rotation of the output member 92 because the rotor 34 is itself immobilized in rotation relative to the intermediate stator 38 which is immobilized in rotation relative to the fixed body 40.

On se reportera maintenant aux figures 6 et 7 pour décrire le fonctionnement normal du verrou.We will now refer to Figures 6 and 7 to describe the normal operation of the lock.

Ce fonctionnement normal correspond à l'introduction d'une clef conforme dans le verrou, à travers la fente 36.This normal operation corresponds to the introduction of a conforming key into the lock, through the slot 36.

Cette introduction a pour conséquence de désolidariser en rotation le rotor 34 par rapport au stator intermédiaire 38.The effect of this introduction is to disengage the rotor 34 from rotation relative to the intermediate stator 38.

Il est ainsi possible de provoquer une rotation du rotor 34, à l'aide de la clef, par exemple dans le sens anti-horaire en considérant les figures 4 et 6.It is thus possible to cause rotation of the rotor 34, using the key, for example in the counterclockwise direction by considering FIGS. 4 and 6.

Lors de cette rotation, la face radiale d'extrémité intérieure 78 du doigt d'indexation 68 reste en appui contre la surface cylindrique externe 81 du rotor 34 assurant ainsi la solidarisation en rotation du stator intermédiaire 38 avec le corps fixe 40.During this rotation, the radial inner end face 78 of the indexing finger 68 remains in abutment against the external cylindrical surface 81 of the rotor 34 thus ensuring the rotational attachment of the intermediate stator 38 with the fixed body 40.

Sous l'action du ressort 132, la partie active de la clavette 120 est sollicitée en appui radialement vers l'extérieur contre la surface cylindrique concave de l'alésage interne 56 du rotor 38.Under the action of the spring 132, the active part of the key 120 is biased to bear radially outward against the concave cylindrical surface of the internal bore 56 of the rotor 38.

La clavette 120 occupe ainsi donc normalement la même position radiale par rapport au rotor 34 et au prolongement 112 que celle illustrée aux figures 4 et 5.The key 120 therefore normally occupies the same radial position relative to the rotor 34 and to the extension 112 as that illustrated in FIGS. 4 and 5.

La manoeuvre du verrou, et donc de l'antivol, s'effectue alors de manière classique, le rotor 34 transmettant son mouvement de rotation à l'organe de sortie 92, et donc au maneton 98, par l'intermédiaire de la clavette d'entraînement dont la partie active 120 est entraînée en rotation par les bords en vis-à-vis de la fente axiale débouchante 86 du rotor 34 et dont la tige principale de guidage 122 entraîne en rotation la partie principale 94 de l'organe de sortie 92 grâce à sa coopération avec la rainure diamétrale 118, ce mouvement d'entraînement étant complété par la coopération de la tige complémentaire de guidage 126 avec les bords en vis-à-vis de la fente axiale débouchante 116 du prolongement 112.The operation of the lock, and therefore of the anti-theft device, is then carried out in a conventional manner, the rotor 34 transmitting its rotational movement to the output member 92, and therefore to the crankpin 98, by means of the key d drive whose active part 120 is driven in rotation by the edges facing the through axial slot 86 of the rotor 34 and whose main guide rod 122 rotates the main part 94 of the output member 92 by virtue of its cooperation with the diametrical groove 118, this driving movement being completed by the cooperation of the complementary guide rod 126 with the edges facing each other of the through axial slot 116 of the extension 112.

On a représenté aux figures 8 et 9 les positions relatives qu'occupent les différents composants dans le cas de l'introduction d'une clef non conforme.FIGS. 8 and 9 show the relative positions occupied by the various components in the case of the introduction of a non-conforming key.

Si un voleur introduit une clef non conforme dans le verrou 14, il ne désolidarise pas en rotation le rotor 34 et le stator intermédiaire 38. Par contre, en forçant pour tenter de provoquer un mouvement de rotation du rotor, et du fait des formes complémentaires en V inversé du doigt d'indexation 68 et de la rainure axiale 50 du corps fixe 40, il provoque l'effacement radial vers l'intérieur du doigt d'indexation 68 dans la lumière 66 et dans la fente axiale 86 de la partie d'extrémité 80 du rotor 34.If a thief introduces a non-conforming key into the latch 14, he does not disengage in rotation the rotor 34 and the intermediate stator 38. By cons, forcing to try to cause a rotational movement of the rotor, and because of the complementary shapes in inverted V of the indexing finger 68 and the axial groove 50 of the fixed body 40, it causes the radial inward obliteration of the indexing finger 68 in the slot 66 and in the axial slot 86 of the part d end 80 of rotor 34.

Cet effacement ou escamotage du doigt d'indexation 68 a pour première conséquence de rendre l'ensemble constitué par le stator intermédiaire 38 et le rotor 34 fou en rotation par rapport au corps fixe 40.This first erasure or retraction of the indexing finger 68 has the first consequence of rendering the assembly constituted by the intermediate stator 38 and the rotor 34 idle in rotation relative to the fixed body 40.

En pénétrant radialement vers l'intérieur dans la fente 86, le doigt d'indexation 68, par l'intermédiaire de sa face radiale intérieure d'extrémité 78 provoque également le déplacement radial vers l'intérieur de la partie active de la clavette 120 qui est guidée dans la fente 116, et ceci à l'encontre de l'effort élastique de rappel assuré par le ressort 132.By penetrating radially inwards into the slot 86, the indexing finger 68, via its inner radial end face 78 also causes the active part of the key 120 to move radially inwards. is guided in the slot 116, and this against the elastic return force provided by the spring 132.

Ce mouvement de coulissement de la clavette 120 radialement vers l'intérieur si l'on considère la partie active 120 provoque simultanément le déplacement radial vers l'extérieur de l'extrémité 126 de la tige principale 122 de guidage de la clavette 120 qui pénètre alors radialement dans la rainure longitudinale 52 du corps fixe 40 comme cela est illustré sur la figure 9.This sliding movement of the key 120 radially inward if we consider the active part 120 simultaneously causes the radial displacement towards the outside of the end 126 of the main rod 122 for guiding the key 120 which then penetrates radially in the longitudinal groove 52 of the fixed body 40 as illustrated in FIG. 9.

Le voleur ne provoque donc aucun entraînement en rotation de l'organe de sortie 92 par l'intermédiaire du rotor 34 car celui-ci n'entraîne plus la clavette 120 qui s'est effacée radialement vers l'intérieur dans la fente 116 du fait de la coopération de ses surfaces inclinées en V inversé 128 avec les bords parallèles 130 de la fente axiale débouchante 86.The thief therefore does not cause any rotation drive of the exit member 92 via the rotor 34 because the latter no longer drives the key 120 which has faded radially inwards in the slot 116 due to the cooperation of its inclined surfaces in inverted V 128 with the parallel edges 130 of the through axial slot 86.

Par ailleurs, il est impossible au voleur d'agir directement sur l'organe de sortie 92 pour provoquer sa rotation dans la mesure où il est immobilisé en rotation par rapport au corps fixe 40 par l'extrémité 126 de la tige de guidage 122 qui est reçue dans la rainure 52, la tige 122 étant elle-même immobilisée en rotation par rapport à la partie principale 94 de l'organe d'indexation 92.Furthermore, it is impossible for the thief to act directly on the exit member 92 to cause its rotation insofar as it is immobilized in rotation relative to the fixed body 40 by the end 126 of the guide rod 122 which is received in the groove 52, the rod 122 being itself immobilized in rotation relative to the main part 94 of the indexing member 92.

Le verrou 14 selon l'invention qui vient d'être décrit est donc non seulement du type débrayable mais il assure une plus grande sécurité dans la mesure où il est impossible à un voleur de provoquer une rotation de l'organe de sortie 92 en l'absence d'une clef conforme, même lorsque le voleur cherche à agir directement sur l'organe de sortie 92, par exemple en tentant de faire tourner ce dernier en agissant sur la tige coaxiale de sortie 140 qui est destinée à agir sur un commutateur rotatif associé à l'antivol (non représenté).The lock 14 according to the invention which has just been described is therefore not only of the disengageable type but it provides greater security insofar as it is impossible for a thief to cause a rotation of the exit member 92 in l 'absence of a conforming key, even when the thief seeks to act directly on the output member 92, for example by trying to rotate the latter by acting on the coaxial output rod 140 which is intended to act on a switch rotary associated with the lock (not shown).

Claims (9)

Verrou (14) à rotor (34) débrayable, notamment pour la commande d'un antivol (10) de direction de véhicule automobile, du type comportant un rotor (34) monté tourillonnant dans un stator intermédiaire (38) en forme de douille lui-même monté pivotant dans un corps fixe de verrou (14), des organes de verrouillage tels que des paillettes (60) ou des couples de pistons coopérant avec le rotor (34) et le stator intermédiaire (38) pour les solidariser en rotation en l'absence de clef, ou en présence d'une clef non conforme, et pour libérer le rotor (34) en rotation par rapport au stator intermédiaire (38) après introduction d'une clef conforme, du type comportant un organe (68) d'indexation angulaire du stator intermédiaire (38) par rapport au corps fixe (40) qui est monté mobile radialement entre une position d'indexation vers laquelle il est rappelé élastiquement et dans laquelle il est reçu dans une rainure (50) du corps fixe (40), et une position escamotée dans laquelle il est effacé radialement vers l'intérieur au moins en partie dans un logement (86) du rotor (34), à l'encontre d'un effort élastique de rappel, caractérisé en ce qu'il comporte un organe de sortie (92) monté à rotation dans le corps fixe (40) du verrou et qui est lié en rotation au rotor par des moyens débrayables d'entraînement (120) dont le débrayage est provoqué par l'organe d'indexation du stator (68) lorsqu'il est en position escamotée, et en ce que les moyens débrayables d'entraînement (120, 126) immobilisent l'organe de sortie (92) en rotation par rapport au corps fixe de verrou (40) lorsqu'ils sont en position débrayée sous l'action de l'organe d'indexation (68).Lock (14) with disengageable rotor (34), in particular for controlling a motor vehicle steering lock (10), of the type comprising a rotor (34) pivotally mounted in an intermediate stator (38) in the form of a socket - even pivotally mounted in a fixed lock body (14), locking members such as flakes (60) or pairs of pistons cooperating with the rotor (34) and the intermediate stator (38) to secure them in rotation in the absence of a key, or in the presence of a non-conforming key, and to release the rotor (34) in rotation relative to the intermediate stator (38) after introduction of a conforming key, of the type comprising a member (68) for angular indexing of the intermediate stator (38) relative to the fixed body (40) which is mounted to move radially between an indexing position to which it is resiliently recalled and in which it is received in a groove (50) in the fixed body (40), and a retracted position in which e it is erased radially inwards at least partially in a housing (86) of the rotor (34), against an elastic return force, characterized in that it comprises an output member (92 ) rotatably mounted in the fixed body (40) of the lock and which is linked in rotation to the rotor by disengageable drive means (120) whose disengagement is caused by the indexing member of the stator (68) when it is in the retracted position, and in that the disengageable drive means (120, 126) immobilize the outlet member (92) in rotation relative to the fixed lock body (40) when they are in the disengaged position under the action of the indexing body (68). Verrou selon la revendication 1, caractérisé en ce que l'organe d'indexation (68) est monté coulissant radialement dans un logement (66) du stator intermédiaire (38) qui débouche en regard d'une fente axiale (86) du rotor (34) qui débouche dans un alésage interne (84) du rotor (34) qui reçoit à rotation un prolongement axial cylindrique (112) de l'organe de sortie (92), et en ce que les moyens débrayables d'entraînement de l'organe de sortie (92) comportent une clavette (120, 122) montée coulissante radialement dans une fente (116) du prolongement (112) de l'organe de sortie (92) entre une position d'entraînement vers laquelle elle est rappelée élastiquement et dans laquelle une première extrémité (120, 128) de la clavette est reçue dans la fente axiale (86) du rotor, et une position de débrayage dans laquelle la première extrémité de la clavette est escamotée radialement vers l'intérieur dans le prolongement (112) de l'organe de sortie (92) et dans laquelle la seconde extrémité (127) de la clavette fait saillie radialement vers l'extérieur pour être reçue dans un cran d'immobilisation (52) formé dans le corps fixe de verrou (40).Lock according to claim 1, characterized in that the indexing member (68) is slidably mounted radially in a housing (66) of the intermediate stator (38) which opens opposite an axial slot (86) of the rotor (34) which opens into an internal bore (84) of the rotor (34) which receives in rotation an extension axial cylindrical (112) of the outlet member (92), and in that the disengageable means for driving the outlet member (92) comprise a key (120, 122) slidably mounted radially in a slot (116 ) of the extension (112) of the outlet member (92) between a drive position towards which it is resiliently biased and in which a first end (120, 128) of the key is received in the axial slot (86) of the rotor, and a declutching position in which the first end of the key is retracted radially inwards in the extension (112) of the output member (92) and in which the second end (127) of the key protrudes radially outward to be received in s an immobilization notch (52) formed in the fixed lock body (40). Verrou selon la revendication 2, caractérisé en ce que l'organe d'indexation (68) présente un profil en V inversé et il est reçu dans une rainure axiale (50) formée dans la paroi cylindrique interne (48) du corps fixe de verrou (40).Lock according to claim 2, characterized in that the indexing member (68) has an inverted V profile and is received in an axial groove (50) formed in the internal cylindrical wall (48) of the fixed lock body (40). Verrou selon l'une des revendications 2 ou 3, caractérisé en ce que la première extrémité (120, 128) de la clavette présente un profil en V inversé et en ce qu'elle est reçue dans une fente axiale débouchante (86) à bords parallèles du rotor (34).Lock according to one of claims 2 or 3, characterized in that the first end (120, 128) of the key has an inverted V profile and in that it is received in an axial through slot (86) with edges rotor parallels (34). Verrou selon l'une quelconque des revendications 2 à 4, caractérisé en ce qu'un ressort (132) de rappel est interposé entre la clavette (120) et une surface d'appui (136) de l'organe de sortie (92, 94, 112) pour solliciter la clavette radialement vers l'extérieur.Lock according to any one of claims 2 to 4, characterized in that a return spring (132) is interposed between the key (120) and a bearing surface (136) of the output member (92, 94, 112) to urge the key radially outwards. Verrou selon la revendication 6, caractérisé en ce que, en position de repos du verrou, la première extrémité (120, 128) de la clavette, sous l'action du ressort de rappel (132), sollicite l'organe d'indexation (68) radialement vers l'extérieur vers sa position d'indexation.Lock according to claim 6, characterized in that, in the rest position of the lock, the first end (120, 128) of the key, under the action of the return spring (132), urges the indexing member ( 68) radially outwards towards its indexing position. Verrou selon l'une quelconque des revendications 2 à 6, caractérisé en ce que l'ensemble constitué par le stator intermédiaire (38), le rotor (34) et l'organe de sortie (92) est susceptible de coulisser axialement par rapport au corps de verrou (40), à l'encontre d'un effort élastique de rappel axial, lors de l'introduction d'une clef conforme.Lock according to any one of claims 2 to 6, characterized in that the assembly constituted by the intermediate stator (38), the rotor (34) and the outlet member (92) is capable of sliding axially relative to the lock body (40), against an elastic axial restoring force, when a conforming key is introduced. Antivol de direction (10) de véhicule automobile du type comportant un boîtier (12) monté sur la colonne de direction du véhicule et qui reçoit un verrou (14) qui commande un pêne (102) qui fait saillie à travers une ouverture du boîtier pour coopérer avec un organe rotatif de la colonne de direction, caractérisé en ce que le verrou (14) est réalisé conformément à l'une quelconque des revendications précédentes.Motor vehicle steering lock (10) of the type comprising a housing (12) mounted on the vehicle steering column and which receives a latch (14) which controls a bolt (102) which projects through an opening in the housing for cooperate with a rotary member of the steering column, characterized in that the latch (14) is produced according to any one of the preceding claims. Antivol selon la revendication 8, caractérisé en ce que le corps fixe (40) du verrou (14) est une chemise tubulaire rapportée dans le boîtier (12, 18) de l'antivol (10).Anti-theft device according to claim 8, characterized in that the fixed body (40) of the latch (14) is a tubular jacket attached to the housing (12, 18) of the anti-theft device (10).
EP96103461A 1995-03-10 1996-03-05 Bolt with a disengageable rotor and car steering column lock with such a bolt Expired - Lifetime EP0731243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9502895 1995-03-10
FR9502895A FR2731456B1 (en) 1995-03-10 1995-03-10 RELEASABLE ROTOR LOCK AND STEERING LOCK OF MOTOR VEHICLE EQUIPPED WITH SUCH A LOCK

Publications (2)

Publication Number Publication Date
EP0731243A1 true EP0731243A1 (en) 1996-09-11
EP0731243B1 EP0731243B1 (en) 2000-05-03

Family

ID=9476979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103461A Expired - Lifetime EP0731243B1 (en) 1995-03-10 1996-03-05 Bolt with a disengageable rotor and car steering column lock with such a bolt

Country Status (4)

Country Link
EP (1) EP0731243B1 (en)
DE (1) DE69608018T2 (en)
ES (1) ES2148607T3 (en)
FR (1) FR2731456B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0833023A2 (en) * 1996-09-25 1998-04-01 VALEO GmbH & Co Schliesssysteme KG Lock cylinder with an overload clutch device
FR2755457A1 (en) * 1996-11-07 1998-05-07 Valeo Securite Habitacle Car lock with axial fixing pin which is indexed with intermediate casing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2601990A1 (en) * 1986-07-25 1988-01-29 Dupart Jean Steering wheel lock with high-security axial bolt for a motor vehicle
EP0370904A1 (en) * 1988-11-22 1990-05-30 Jean Dupart Safety lock with a pivoting stator
FR2642463A1 (en) * 1989-01-30 1990-08-03 Neiman Sa ROTARY STATOR DEBRAYABLE LOCK
WO1991011579A1 (en) * 1990-01-26 1991-08-08 Ferenc Moricz Burgler proof lock, especially lock for cars
EP0571249A1 (en) * 1992-05-20 1993-11-24 Valeo Securite Habitacle Bolt with disconnectable rotor, especially for a motor vehicle lock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041134C1 (en) * 1990-12-21 1992-06-04 Huelsbeck & Fuerst Gmbh & Co Kg, 5620 Velbert, De Car lock cylinder with core guide - which carriers a radially displaceable follower, spring-loaded up to radial abutment on guide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2601990A1 (en) * 1986-07-25 1988-01-29 Dupart Jean Steering wheel lock with high-security axial bolt for a motor vehicle
EP0370904A1 (en) * 1988-11-22 1990-05-30 Jean Dupart Safety lock with a pivoting stator
FR2642463A1 (en) * 1989-01-30 1990-08-03 Neiman Sa ROTARY STATOR DEBRAYABLE LOCK
WO1991011579A1 (en) * 1990-01-26 1991-08-08 Ferenc Moricz Burgler proof lock, especially lock for cars
EP0571249A1 (en) * 1992-05-20 1993-11-24 Valeo Securite Habitacle Bolt with disconnectable rotor, especially for a motor vehicle lock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0833023A2 (en) * 1996-09-25 1998-04-01 VALEO GmbH & Co Schliesssysteme KG Lock cylinder with an overload clutch device
EP0833023A3 (en) * 1996-09-25 1998-09-16 VALEO GmbH & Co Schliesssysteme KG Lock cylinder with an overload clutch device
FR2755457A1 (en) * 1996-11-07 1998-05-07 Valeo Securite Habitacle Car lock with axial fixing pin which is indexed with intermediate casing

Also Published As

Publication number Publication date
DE69608018T2 (en) 2000-12-14
FR2731456B1 (en) 1997-04-04
DE69608018D1 (en) 2000-06-08
ES2148607T3 (en) 2000-10-16
FR2731456A1 (en) 1996-09-13
EP0731243B1 (en) 2000-05-03

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