EP0341132B1 - Lock with a disconnectible rotor - Google Patents

Lock with a disconnectible rotor Download PDF

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Publication number
EP0341132B1
EP0341132B1 EP89401187A EP89401187A EP0341132B1 EP 0341132 B1 EP0341132 B1 EP 0341132B1 EP 89401187 A EP89401187 A EP 89401187A EP 89401187 A EP89401187 A EP 89401187A EP 0341132 B1 EP0341132 B1 EP 0341132B1
Authority
EP
European Patent Office
Prior art keywords
rotor
sleeve
spring
lever
fact
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
EP89401187A
Other languages
German (de)
French (fr)
Other versions
EP0341132A1 (en
Inventor
Jean Leroy
Jean-Pierre Bosdevesy
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 Neiman SA
Original Assignee
Valeo Neiman SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Neiman SA filed Critical Valeo Neiman SA
Publication of EP0341132A1 publication Critical patent/EP0341132A1/en
Application granted granted Critical
Publication of EP0341132B1 publication Critical patent/EP0341132B1/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
    • E05B17/0054—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed
    • E05B17/0058—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed with non-destructive disengagement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7576—Sliding and rotary plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7706—Operating connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7706—Operating connections
    • Y10T70/7712—Rollbacks

Definitions

  • the invention relates to a disengageable rotor lock of the type according to the preamble of claim 1 and described for example in patent FR-A-2 583 813.
  • Such locks with disengageable rotor have the important advantage, from the point of view of safety, of not being able to be forced into rotation, rotation by force causing the bushing, or intermediate stator, which remains connected to the rotor by the organs of locking, so that the securing means are not made active and that the control member of the lock is not actuated.
  • latches are difficult to open by axial drilling in an attempt to cut through the locking members, since the drilling tool tends to drive the rotor in rotation and, with it, the sleeve, so that here again the control unit is not actuated.
  • Such a lock is described for example in patent EP-A-0151 081.
  • the lock described in this patent comprises means for securing between the rotor and a control member constituted by a finger secured to the rotating rotor.
  • the axis of rotation of this finger is normally coaxial with the rotor and is offset only in the case of a rotation of the rotor alone.
  • Such a lock has various drawbacks.
  • Such a lock in addition to the overall length required by the sliding of the rotor, has the drawback of significant wear due to the sliding of the rotor, with all or part of the locking members, each time the lock is opened or closed. . In addition, it requires high precision of the locking members and a very small clearance between the rotor and the bush to satisfy the safety conditions.
  • the present invention aims to provide a new lock which does not have the drawbacks of known locks and which is in particular of simple, economical and safe construction.
  • the present invention provides a disengageable rotor lock of the type comprising a rotor swiveling in a bushing itself pivoting in a fixed body, locking members such as pairs of pistons or flakes cooperating with the rotor and the bushing for securing them in rotation in the absence of a key or in the presence of a non-conforming key and releasing the rotor relative to the sleeve after introduction of the conforming key, the sleeve being held in the rest position by an erasable indexing member cooperating with said body, the bolt further comprising a control member for a lock such as a lever or thresher and means for securing the rotor to said control member arranged so as to ensure securing only after rotation of the rotor independently of the socket, the fastening means comprising a slide integral in rotation with said rotor and cooperating by cam with said socket, ledi t slide comprising at least one drive finger engaging, after sliding of the slide under the effect of its
  • the sleeve is rotated with the rotor due to the joining of these two parts by the locking members, and the slide is not moved in translation by its cooperation by cam with the socket since the latter is fixed in rotation relative to the slide.
  • the cam drive finger does not engage the control member, which is not actuated.
  • the locking piece locks the control member with respect to the body so that the control member cannot be actuated separately to open the lock.
  • the return spring of the slider is supported on said blocking piece.
  • the invention provides that the rotor is returned by spring to the position of rest, said spring acting from an angle predetermined rotor.
  • the return spring of the rotor is a torsion spring.
  • the return spring of the rotor consists of at least one leaf spring cooperating with a flat part of the rotor.
  • the rotor lock 1 journalling in a socket 2 or intermediate stator, the socket 2 journalling in a fixed body 3 or housing.
  • the rotor 1 has a longitudinal key channel 4 and radial bores 5 opening into the channel 4.
  • the bush 2 has radial bores 6 which, in the position of rest or introduction and extraction of the key 7, are in the extension of the bores 4.
  • the locking members constituted by the pistons 8, 9 can of course be replaced by any known locking members such as flakes, levers, etc.
  • the sleeve 2 is indexed in the rest position by an indexing member 11 ( Figure 4) which, in the example described, consists of a lever 12 housed in the sleeve 2 and provided with a heel 13 and a opposite projection 14.
  • the lever 12 is returned by a spring 15 in contact with the body 3, the heel 13 being housed in a longitudinal groove 16 of the body 3 provided with bevelled edges.
  • the projection 14 of the lever 12 is opposite a notch 17 of the rotor 1.
  • the pressing force of the lever 12 against the body 3 provides the required indexing between the sleeve 2 and the body 3.
  • the heel 13 of the lever 12 is raised by a beveled edge of the groove 16 and the projection 14 is housed in the notch 17, which reinforces the connection between the rotor 1 and the sleeve 2.
  • the notch 17 is no longer facing the heel 14 and the lever 12 can no longer lift.
  • indexing device 11 can be replaced by any equivalent device, such as a spring loaded ball.
  • a cover 18 closes the open end of the rotor 1 and can carry a shielded ring 19, integral with the cover 18 or the rotor 1 or free, which protects the rotor 1 against a frontal drilling.
  • a slider 20, integral in rotation with the rotor 1, is slidably mounted on the rotor 1.
  • the slider 20 carries a cam profile 21 or ramp cooperating with the rear face 22 of the sleeve 2 so as to produce a displacement of the slider 20 towards the right (in the drawing) when the rotor 1 rotates relative to the sleeve 2.
  • the slide 20 is fixed in translation.
  • the slide 20 is subjected to the action of a compression spring 23 by means of a sliding piece 24 fixed in rotation relative to the body 3.
  • the slide 20 is provided with a drive finger 25 which, in position rest ( Figures 1 and 2), are outside of holes 26 ( Figure 3) of a control lever 27.
  • the part 24, in the rest position, partially penetrates the lever 27 which is thus immobilized.
  • a torsion spring 28 returns the lever 27 to the equilibrium position.

Landscapes

  • Lock And Its Accessories (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Description

L'invention concerne un verrou à rotor débrayable du type selon le préambule de la revendication 1 et décrit par exemple dans le brevet FR-A-2 583 813.The invention relates to a disengageable rotor lock of the type according to the preamble of claim 1 and described for example in patent FR-A-2 583 813.

De tels verrous à rotor débrayables présentent l'avantage important, du point de vue de la sécurité, de ne pas pouvoir être forcés en rotation, la rotation à force entraînant la douille, ou stator intermédiaire, qui reste reliée au rotor par les organes de verrouillage, de sorte que les moyens de solidarisation ne sont pas rendus actifs et que l'organe de commande de la serrure n'est pas actionné. De même, de tels verrous sont difficiles à ouvrir par perçage axial pour tenter de sectionner les organes de verrouillage, car l'outil de perçage tend à entraîner le rotor en rotation et, avec lui, la douille, de sorte que là encore l'organe de commande n'est pas actionné.Such locks with disengageable rotor have the important advantage, from the point of view of safety, of not being able to be forced into rotation, rotation by force causing the bushing, or intermediate stator, which remains connected to the rotor by the organs of locking, so that the securing means are not made active and that the control member of the lock is not actuated. Likewise, such latches are difficult to open by axial drilling in an attempt to cut through the locking members, since the drilling tool tends to drive the rotor in rotation and, with it, the sleeve, so that here again the control unit is not actuated.

Un tel verrou est décrit par exemple dans le brevet EP-A-0151 081. Le verrou décrit dans ce brevet comporte des moyens de solidarisation entre le rotor et un organe de commande constitués par un doigt solidaire du rotor en rotation. L'axe de rotation de ce doigt étant normalement coaxial au rotor et s'excentrant uniquement dans le cas d'une rotation du rotor seul. Un tel verrou présente divers inconvénients.Such a lock is described for example in patent EP-A-0151 081. The lock described in this patent comprises means for securing between the rotor and a control member constituted by a finger secured to the rotating rotor. The axis of rotation of this finger is normally coaxial with the rotor and is offset only in the case of a rotation of the rotor alone. Such a lock has various drawbacks.

En particulier, il est de construction compliquée et encombrante, ce qui le rend difficilement utilisable lorsque le verrou doit être économique et occuper un volume réduit.In particular, it is of complicated and bulky construction, which makes it difficult to use when the lock must be economical and occupy a reduced volume.

On a également proposé de faire coulisser le rotor, ou une partie de celui-ci, par rapport à la douille, lors de l'introduction de la clé conforme et seulement dans ce cas, de sorte que le rotor coulissé est en prise avec l'organe de commande.It has also been proposed to slide the rotor, or a part of it, relative to the socket, during the introduction of the conforming key and only in this case, so that the sliding rotor is engaged with the control unit.

Un tel verrou, outre l'encombrement en longueur nécessité par le coulissement du rotor, présente l'inconvénient d'une usure importante du fait du coulissement du rotor, avec tout ou partie des organes de verrouillage, à chaque ouverture ou fermeture de la serrure. En outre, il nécessite une grande précision des organes de verrouillage et un très faible jeu entre le rotor et la douille pour satisfaire les conditions de sécurité.Such a lock, in addition to the overall length required by the sliding of the rotor, has the drawback of significant wear due to the sliding of the rotor, with all or part of the locking members, each time the lock is opened or closed. . In addition, it requires high precision of the locking members and a very small clearance between the rotor and the bush to satisfy the safety conditions.

La présente invention vise à fournir un nouveau verrou quine présente pas les inconvénients des verrous connus et qui soit en particulier de construction simple, économique et sûre.The present invention aims to provide a new lock which does not have the drawbacks of known locks and which is in particular of simple, economical and safe construction.

A cet effet, la présente invention propose un verrou à rotor débrayable du type comprenant un rotor tourillonnant dans une douille elle-même pivotante dans un corps fixe, des organes de verrouillage tels que couples de pistons ou paillettes coopérant avec le rotor et la douille pour les solidariser en rotation en l'absence de clé ou en présence d'une clé non conforme et libérer le rotor par rapport à la douille après introduction de la clé conforme, la douille étant maintenue en position de repos par un organe d'indexation effaçable coopérant avec ledit corps, le verrou comprenant en outre un organe de commande d'une serrure tel qu'un levier ou batteuse et des moyens de solidarisation du rotor avec ledit organe de commande agencés de manière à assurer la solidarisation seulement après rotation du rotor indépendamment de la douille, les moyens de solidarisation comprenant un coulisseau solidaire en rotation dudit rotor et coopérant par came avec ladite douille, ledit coulisseau comportant au moins un doigt d'entraînement venant en prise, après coulissement du coulisseau sous l'effet de sa coopération par came avec la douille, avec un orifice dudit organe de commande, ledit coulisseau étant rappelé vers le rotor par un ressort, est caractérisé par le fait que ledit coulisseau est en appui contre une pièce de blocage coulissant dans ledit corps et pénétrant partiellement dans l'organe de commande en position de repos et en ce que l'organe d'indexation est constitué par un levier solidaire en rotation de la douille et muni d'un talon et d'une saillie opposée audit talon, un ressort rappelant ledit levier en contact avec ledit corps, ledit talon étant logé, en position de repos, dans une rainure longitudinale du corps à bords biseautés, la saillie dudit levier étant alors en regard d'une encoche dudit rotor.To this end, the present invention provides a disengageable rotor lock of the type comprising a rotor swiveling in a bushing itself pivoting in a fixed body, locking members such as pairs of pistons or flakes cooperating with the rotor and the bushing for securing them in rotation in the absence of a key or in the presence of a non-conforming key and releasing the rotor relative to the sleeve after introduction of the conforming key, the sleeve being held in the rest position by an erasable indexing member cooperating with said body, the bolt further comprising a control member for a lock such as a lever or thresher and means for securing the rotor to said control member arranged so as to ensure securing only after rotation of the rotor independently of the socket, the fastening means comprising a slide integral in rotation with said rotor and cooperating by cam with said socket, ledi t slide comprising at least one drive finger engaging, after sliding of the slide under the effect of its cam cooperation with the sleeve, with an orifice of said control member, said slide being biased towards the rotor by a spring, is characterized in that said slide is in abutment against a blocking piece sliding in said body and partially penetrating into the control member in the rest position and in that the indexing member is constituted by a lever integral in rotation with the sleeve and provided with a heel and a projection opposite said heel, a spring recalling said lever in contact with said body, said heel being housed, in the rest position, in a longitudinal groove of the body with bevelled edges, the projection of said lever then being opposite a notch of said rotor.

Lors des tentatives de viol par rotation à force du rotor, la douille est entraînée en rotation avec le rotor du fait de la solidarisation de ces deux pièces par les organes de verrouillage, et le coulisseau n'est pas déplacé en translation par sa coopération par came avec la douille puisque celle-ci est fixe en rotation par rapport au coulisseau. Le doigt d'entraînement de la came ne vient pas en prise avec l'organe de commande, qui n'est pas actionné.During rape attempts by forced rotation of the rotor, the sleeve is rotated with the rotor due to the joining of these two parts by the locking members, and the slide is not moved in translation by its cooperation by cam with the socket since the latter is fixed in rotation relative to the slide. The cam drive finger does not engage the control member, which is not actuated.

De plus, la pièce de blocage verrouille l'organe de commande par rapport au corps de sorte que l'organe de commande ne peut pas être actionné séparément pour ouvrir la serrure.In addition, the locking piece locks the control member with respect to the body so that the control member cannot be actuated separately to open the lock.

En fonctionnement normal, la pression du levier contre le corps, sous l'effet du ressort de rappel du levier, assure le couple résistant d'indexage. Dès que le rotor a commencé à pivoter seul, la saillie du levier n'est plus en regard de l'encoche du rotor et le levier ne peut plus s'éclipser. Au contraire, en l'absence de la clé conforme, la douille pivote avec le rotor du fait des organes de verrouillage. Le talon du levier est soulevé par un bord biseauté de la rainure du corps et la saillie du levier vient se loger dans l'encoche du rotor, ce qui renforce la solidarisation entre la douille et le rotor.In normal operation, the pressure of the lever against the body, under the effect of the lever return spring, ensures the resistant indexing torque. As soon as the rotor has started to rotate on its own, the protrusion of the lever is no longer opposite the notch of the rotor and the lever can no longer slip away. On the contrary, in the absence of the conforming key, the sleeve pivots with the rotor due to the locking members. The heel of the lever is raised by a beveled edge of the groove of the body and the projection of the lever is housed in the notch of the rotor, which reinforces the connection between the sleeve and the rotor.

Dans ce cas, selon une forme de réalisation de l'invention, le ressort de rappel du coulisseau est en appui sur ladite pièce de blocage.In this case, according to one embodiment of the invention, the return spring of the slider is supported on said blocking piece.

Pour compenser le jeu angulaire nécessaire au rotor pour revenir en position de repos ou d'extraction de la clé, retour qui peut n'être pas assuré par la coopération de came, l'invention prévoit que le rotor est rappelé par ressort en position de repos, ledit ressort agissant à partir d'un angle prédéterminé du rotor. Selon une forme de réalisation, le ressort de rappel du rotor est un ressort de torsion. De préférence, le ressort de rappel du rotor est constitué par au moins un ressort-lame coopérant avec un méplat du rotor.To compensate for the angular play necessary for the rotor to return to the position of rest or extraction of the key, return which may not be ensured by the cam cooperation, the invention provides that the rotor is returned by spring to the position of rest, said spring acting from an angle predetermined rotor. According to one embodiment, the return spring of the rotor is a torsion spring. Preferably, the return spring of the rotor consists of at least one leaf spring cooperating with a flat part of the rotor.

Pour renforcer la sécurité du verrou, on peut prévoir, de manière connue, une rondelle blindée à l'entrée du canal de clé du rotor.To reinforce the security of the lock, it is possible to provide, in a known manner, an armored washer at the entrance to the key channel of the rotor.

L'invention sera bien comprise à la lecture de la description suivante faite en se référant au dessin annexé dans lequel:

  • la figure 1 est une vue schématique en coupe axiale d'un verrou selon un exemple de réalisation de l'invention, clé extraite;
  • la figure 2 est analogue à la figure 1, la clé conforme étant introduite;
  • la figure 3 est analogue à la figure 2, après rotation du rotor sous l'action de la clé; et
  • la figure 4 est une vue en coupe, à grande échelle, de l'organe d'indexation.
  • la figure 5 est une vue en coupe selon la ligne V-V de la figure 3, à plus grande échelle.
The invention will be clearly understood on reading the following description made with reference to the appended drawing in which:
  • Figure 1 is a schematic view in axial section of a lock according to an exemplary embodiment of the invention, key extracted;
  • Figure 2 is similar to Figure 1, the conforming key being inserted;
  • Figure 3 is similar to Figure 2, after rotation of the rotor under the action of the key; and
  • Figure 4 is a sectional view, on a large scale, of the indexing member.
  • Figure 5 is a sectional view along the line VV of Figure 3, on a larger scale.

Le verrou à rotor 1 tourillonnant dans une douille 2 ou stator intermédiaire, la douille 2 tourillonnant dans un corps fixe 3 ou boîtier. Le rotor 1 comporte un canal de clé longitudinal 4 et des alésages radiaux 5 débouchant dans le canal 4. La douille 2 comporte des alésages radiaux 6 qui, dans la position de repos ou d'introduction et d'extraction de la clé 7, sont dans le prolongement des alésages 4.The rotor lock 1 journalling in a socket 2 or intermediate stator, the socket 2 journalling in a fixed body 3 or housing. The rotor 1 has a longitudinal key channel 4 and radial bores 5 opening into the channel 4. The bush 2 has radial bores 6 which, in the position of rest or introduction and extraction of the key 7, are in the extension of the bores 4.

Des couples, piston rotorique 8 - piston statorique 9, rappelés chacun par un ressort 10, coulissent dans les alésages 5,6 alignés et, en l'absence de clé (figure 1), leur point de contact n'est pas dans l'enveloppe du rotor 1, qui est ainsi verrouillé par rapport à la douille 2. Au contraire, après introduction de la clé conforme 7 (figures 2 et 3), le point de contact des pistons 8,9 de chaque couple est dans l'enveloppe du rotor 1 et celui-ci est déverrouillé en rotation par rapport à la douille 2.Torques, rotor piston 8 - stator piston 9, each recalled by a spring 10, slide in the aligned bores 5,6 and, in the absence of a key (Figure 1), their point of contact is not in the envelope of the rotor 1, which is thus locked relative to the sleeve 2. On the contrary, after insertion of the conforming key 7 (Figures 2 and 3), the point of contact of the pistons 8.9 of each pair is in the envelope of the rotor 1 and the latter is unlocked in rotation relative to the sleeve 2.

Les organes de verrouillage constitués par les pistons 8,9 peuvent bien entendu être remplacés par tous organes de verrouillage connus tels que paillettes, leviers, etc.The locking members constituted by the pistons 8, 9 can of course be replaced by any known locking members such as flakes, levers, etc.

La douille 2 est indexée en position de repos par un organe d'indexation 11 (figure 4) qui, dans l'exemple décrit, est constitué par un levier 12 logé dans la douille 2 et muni d'un talon 13 et d'une saillie opposée 14. Le levier 12 est rappelé par un ressort 15 en contact avec le corps 3, le talon 13 étant logé dans une rainure longitudinale 16 du corps 3 munie de bords en biseau. La saillie 14 du levier 12 est en regard d'une encoche 17 du rotor 1.The sleeve 2 is indexed in the rest position by an indexing member 11 (Figure 4) which, in the example described, consists of a lever 12 housed in the sleeve 2 and provided with a heel 13 and a opposite projection 14. The lever 12 is returned by a spring 15 in contact with the body 3, the heel 13 being housed in a longitudinal groove 16 of the body 3 provided with bevelled edges. The projection 14 of the lever 12 is opposite a notch 17 of the rotor 1.

En fonctionnement normal, la force d'appui du levier 12 contre le corps 3 assure l'indexation requise entre la douille 2 et le corps 3. En cas de rotation forcée du rotor 1 entraînant la douille 2 par les organes de verrouillage 8,9, le talon 13 du levier 12 est soulevé par un bord biseauté de la rainure 16 et la saillie 14 vient se loger dans l'encoche 17, ce qui renforce la solidarisation entre le rotor 1 et la douille 2. En fonctionnement normal, dès que le rotor 1 a tourné par rapport à la douille 2 (figure 3), l'encoche 17 n'est plus en regard du talon 14 et le levier 12 ne peut plus se soulever.In normal operation, the pressing force of the lever 12 against the body 3 provides the required indexing between the sleeve 2 and the body 3. In the event of forced rotation of the rotor 1 driving the sleeve 2 by the locking members 8.9 , the heel 13 of the lever 12 is raised by a beveled edge of the groove 16 and the projection 14 is housed in the notch 17, which reinforces the connection between the rotor 1 and the sleeve 2. In normal operation, as soon as the rotor 1 has rotated relative to the sleeve 2 (Figure 3), the notch 17 is no longer facing the heel 14 and the lever 12 can no longer lift.

Bien entendu, le dispositif d'indexation 11 peut être remplacé par tout dispositif équivalent, tel qu'une bille chargée par ressort.Of course, the indexing device 11 can be replaced by any equivalent device, such as a spring loaded ball.

Un capot 18 ferme l'extrémité ouverte du rotor 1 et peut porter une bague blindée 19, solidaire du capot 18 ou du rotor 1 ou libre, qui protège le rotor 1 contre un perçage frontal.A cover 18 closes the open end of the rotor 1 and can carry a shielded ring 19, integral with the cover 18 or the rotor 1 or free, which protects the rotor 1 against a frontal drilling.

Un coulisseau 20, solidaire en rotation du rotor 1, est monté coulissant sur le rotor 1. Le coulisseau 20 porte un profil de came 21 ou rampe coopérant avec la face arrière 22 de la douille 2 de manière à produire un déplacement du coulisseau 20 vers la droite (sur le dessin) lorsque le rotor 1 tourne par rapport à la douille 2. Au contraire, lorsque la douille 2 tourne avec le rotor 1 (tentative d'effraction), le coulisseau 20 est fixe en translation.A slider 20, integral in rotation with the rotor 1, is slidably mounted on the rotor 1. The slider 20 carries a cam profile 21 or ramp cooperating with the rear face 22 of the sleeve 2 so as to produce a displacement of the slider 20 towards the right (in the drawing) when the rotor 1 rotates relative to the sleeve 2. On the contrary, when the sleeve 2 rotates with the rotor 1 (attempted break-in), the slide 20 is fixed in translation.

Le coulisseau 20 est soumis à l'action d'un ressort de compression 23 par l'intermédiaire d'une pièce coulissante 24 fixe en rotation par rapport au corps 3. Le coulisseau 20 est muni de doigt d'entraînement 25 qui, en position de repos (figures 1 et 2), sont en dehors d'orifices 26 (figure 3) d'un levier de commande 27. La pièce 24, en position de repos, pénètre partiellement dans le levier 27 qui est ainsi immobilisé.The slide 20 is subjected to the action of a compression spring 23 by means of a sliding piece 24 fixed in rotation relative to the body 3. The slide 20 is provided with a drive finger 25 which, in position rest (Figures 1 and 2), are outside of holes 26 (Figure 3) of a control lever 27. The part 24, in the rest position, partially penetrates the lever 27 which is thus immobilized.

Après introduction de la clé conforme 7 (figures 2 et 4) et rotation du rotor 1 d'un angle prédéterminé, par exemple 30°, les doigts d'entraînement 25 ont pénétré dans les orifices 26 du levier 27 du fait du coulissement du coulisseau 20, ce coulissement produisant un déplacement de même sens de la pièce 24 contre l'action du ressort 23. Le levier 27 est alors libéré par rapport au corps 1 et solidaire en rotation du rotor 1 (figure 3).After introduction of the conforming key 7 (Figures 2 and 4) and rotation of the rotor 1 by a predetermined angle, for example 30 °, the drive fingers 25 have penetrated into the orifices 26 of the lever 27 due to the sliding of the slide 20, this sliding producing a displacement in the same direction of the part 24 against the action of the spring 23. The lever 27 is then released relative to the body 1 and integral in rotation with the rotor 1 (FIG. 3).

De manière usuelle, un ressort de torsion 28 rappelle le levier 27 en position d'équilibre.Usually, a torsion spring 28 returns the lever 27 to the equilibrium position.

Pour le retour du verrou à la position de sortie de la clé, si le ressort 23 ne suffit pas à ramener les pièces 24 et 20 à la position de repos du fait du frottrement de la rampe 21 sur la douille 2, on peut prévoir de munir le rotor 1 d'un ressort de rappel pour absorber l'angle de fin de course de retour. On peut utiliser un ressort de torsion 29 (figures 1 à 3) ou, de préférence, un ou plusieurs ressorts-lames coopérant avec un ou plusieurs méplats du rotor 1.For the return of the lock to the key release position, if the spring 23 is not sufficient to bring the parts 24 and 20 to the rest position due to the friction of the ramp 21 on the socket 2, provision may be made for provide the rotor 1 with a return spring to absorb the return end-of-travel angle. It is possible to use a torsion spring 29 (FIGS. 1 to 3) or, preferably, one or more leaf springs cooperating with one or more flats of the rotor 1.

Claims (6)

1. A lock of the disconnectable rotor type, comprising a rotor (1) mounted rotatably in a sleeve (2) which is itself pivoted in a fixed body (3), locking means such as pairs of locking pins (8, 9) or pallets cooperating with the rotor (1) and the sleeve (2) whereby to couple them for rotation together in the absence of a key (7) or in the presence of an incorrect key, and to release the rotor (1) from the sleeve (2) after introduction of the correct key (7), the sleeve (2) being retained in a rest position by an effaceable indexing member (11) cooperating with the said body (3), the lock further comprising a bolt actuating member such as a lever (27) or tumbler, together with means for coupling the rotor (1) with the said actuating member (27), the arrangement being such as to ensure that coupling takes place only after rotation of the rotor (1) independently of the sleeve (2), the coupling means comprising a slide member (20) coupled in rotation with the said rotor (1) and cooperating through cam means (21, 22) with the said sleeve (2), wherein the said slide member (20) includes at least one actuating finger (25) which, after sliding movement of the sliding element (20) due to its cooperation with the sleeve (2) via the cam means (21, 22), comes into engagement with an aperture means (26) of the said actuating member (27), the said sliding member (20) being urged towards the rotor by a spring (23), characterised by the fact that the said slide member (20) is in engagement against a stop member (24) mounted for sliding movement in the said body (3) and penetrating partly into the actuating member (27) in the rest position, and in that the indexing member (11) comprises a lever (12) which is fixed to the sleeve (2) for rotation therewith and which is provided with a claw (13) and with a projection (14) opposed to the said claw (13), with a spring (15) urging the said lever (12) into contact with the said body (3), the said claw (13) being engaged in the rest position in a longitudinal groove (16) of the body (3) having chamfered edges, so that the projection (14) of the said lever (12) then lies facing a slot (17) of the said rotor (1).
2. A lock according to Claim 1, characterised by the fact that the return spring (23) of the sliding member (20) is in engagement on the said stop member (24).
3. A lock according to Claim 1 or Claim 2, characterised by the fact that the rotor (1) is urged by a spring (29) into the rest position, the said spring (29) acting whilst the rotor (1) is at a predetermined angle.
4. A lock according to Claim 3, characterised by the fact that the return spring for the rotor (1) is a torsion spring (29).
5. A lock according to Claim 3, characterised by the fact that the return spring for the rotor (1) comprises at least one leaf spring cooperating with a flat portion of the rotor (1).
6. A lock according to one of Claims 1 to 5, characterised by the fact that it comprises an armoured ring (19) at the entry end of the key hole (4) of the rotor (1).
EP89401187A 1988-05-04 1989-04-26 Lock with a disconnectible rotor Expired - Lifetime EP0341132B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805970 1988-05-04
FR8805970A FR2631067B1 (en) 1988-05-04 1988-05-04 RELEASABLE ROTOR LOCK

Publications (2)

Publication Number Publication Date
EP0341132A1 EP0341132A1 (en) 1989-11-08
EP0341132B1 true EP0341132B1 (en) 1992-02-12

Family

ID=9365973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401187A Expired - Lifetime EP0341132B1 (en) 1988-05-04 1989-04-26 Lock with a disconnectible rotor

Country Status (6)

Country Link
US (1) US4903512A (en)
EP (1) EP0341132B1 (en)
JP (1) JP2742553B2 (en)
DE (1) DE68900822D1 (en)
ES (1) ES2030583T3 (en)
FR (1) FR2631067B1 (en)

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Also Published As

Publication number Publication date
ES2030583T3 (en) 1992-11-01
FR2631067A1 (en) 1989-11-10
FR2631067B1 (en) 1991-02-08
JPH01315569A (en) 1989-12-20
EP0341132A1 (en) 1989-11-08
DE68900822D1 (en) 1992-03-26
US4903512A (en) 1990-02-27
JP2742553B2 (en) 1998-04-22

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