EP2115247B1 - Advanced electric lock for the opening of an automotive vehicle - Google Patents

Advanced electric lock for the opening of an automotive vehicle Download PDF

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Publication number
EP2115247B1
EP2115247B1 EP08708360.6A EP08708360A EP2115247B1 EP 2115247 B1 EP2115247 B1 EP 2115247B1 EP 08708360 A EP08708360 A EP 08708360A EP 2115247 B1 EP2115247 B1 EP 2115247B1
Authority
EP
European Patent Office
Prior art keywords
retaining member
driver
bolt
pawl
latch
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.)
Active
Application number
EP08708360.6A
Other languages
German (de)
French (fr)
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EP2115247A1 (en
Inventor
Laurent Duriez
Yves Duboilles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea AccessSolutions France SAS
Original Assignee
U Shin France SAS
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 U Shin France SAS filed Critical U Shin France SAS
Publication of EP2115247A1 publication Critical patent/EP2115247A1/en
Application granted granted Critical
Publication of EP2115247B1 publication Critical patent/EP2115247B1/en
Active 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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0493—Overcenter springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E05B81/15—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt with means preventing the detent to return to its latching position before the bolt has moved to the unlatched position

Definitions

  • the present invention relates to an improved electric lock for an opening of a motor vehicle, in particular for a door, a tailgate, a tailgate bezel or the trunk of a motor vehicle.
  • Conventional electric locks comprise a pivoting bolt intended to cooperate with a strike and a pivoting pawl between an open position and a closed position of the lock.
  • the pawl holds the bolt to prevent rotation of the bolt in the closed position of the lock.
  • the pawl that holds the bolt is driven by an electric actuator so as to release the bolt.
  • the bolt can pivot to release the striker.
  • the electric actuator is no longer engaged with the pawl, it is pushed by a spring towards the bolt.
  • the pivoting of the bolt is generally caused by the reaction force of the elastic seal which is interposed between the door and the door pillar of the vehicle. It may happen that the bolt does not rotate, while it is no longer retained by the ratchet. This case can occur in particular on a tailgate of the vehicle trunk, when a layer of snow was deposited on the tailgate, the weight of the snow layer to compensate for the reaction force of the door seal.
  • the reaction force of the seal required for the opening of the opening may depend on the temperature of the external environment.
  • the cold temperatures stiffen the joint so that the reaction force is no longer sufficient to generate the rotation of the bolt.
  • the wear of the reaction joint can decrease the reaction force available to a level insufficient to generate the rotation of the bolt.
  • the ratchet can fly and cling inadvertently by means of blocking. The pawl is then locked away from the bolt, preventing the lock from closing.
  • a flight of pawl due to a shock on the moving vehicle for example can also cause the attachment of the pawl by means of blocking.
  • the pawl is then also locked away from the bolt leading to the unwanted opening of the lock.
  • the present invention aims to remedy this problem by proposing an improved electric lock which allows in particular to reliably ensure each of the two open and closed positions of the lock, even in case of inadvertent movement of the pawl.
  • the invention provides an electric lock according to claim 1.
  • This electric lock represents an alternative construction of the lock known from the intermediate document EP 1 862 618 A .
  • a lock of the state of the art is also known from the document DE100 43 574A .
  • the figure 1 represents various elements of an electric lock according to the invention for an opening of a motor vehicle, in particular for a door, a tailgate, a tailgate bezel or the trunk of a motor vehicle.
  • the electric lock comprises a pivoting bolt 3 intended to cooperate with a striker (not shown). In the closed position of the lock, the bolt 3 is locked in rotation by a pivoting pawl 5, preventing the rotation of the bolt 3.
  • the pawl 5 is pivotally integral with a driver 7 whose pivoting is driven by an actuator 8 of opening of the lock.
  • the lock further comprises a retaining member 9 adapted to retain the driver-ratchet assembly 7, 5 in a position spaced from the bolt 3 in the open position of the lock allowing rotation of the bolt 3.
  • the bolt 3 has a fork shape delimiting a housing 11 for receiving the striker which cooperates with the lock.
  • the bolt 3 is pivotable about an axis 13.
  • the edge of the bolt 3 also has two notches 15 and 17 one of which is formed on one of the two ends of the fork of the bolt 3.
  • the two notches 15 and 17 are intended to cooperate with the pawl 5 to define a lock to two closed positions. It is also possible that the bolt 3 has only one notch.
  • the pawl 5 has a spout-shaped end 5a capable of cooperating with the notches 15 and 17 of the bolt 3.
  • the pawl 5 is subjected to an elastic restoring force, which urges it towards the bolt 3 as indicated by the arrow 18.
  • the pawl 5 is integral in rotation with the driver 7 and is able to pivot with it around an axis 19 between an open position (see Figures 6 to 9 ) and a closed position of the lock (see figure 2 ).
  • the driver 7 has a general shape of boot with a recess 21 located between the sole portion 7a and the heel portion 7b, to cooperate with the actuator 8.
  • the recess 21 is dimensioned to receive crank pins (not visible in the figure) of a control wheel 23 driven by a pinion 25 which meshes with a worm 27 carried by the output shaft of a electric motor 29.
  • the driver 7 is therefore susceptible to a pivoting movement about said axis 19.
  • the pawl 5 pivots in the counterclockwise direction to allow the escape of the spout 5a of the notch 15 ( figure 6 ).
  • a locking of the driver 7 at the end of pivoting is performed by the retaining member 9.
  • the retaining member 9 is subjected to a bistable elastic return, so as to be biased towards one or the other of two stable positions in which the retaining member is biased toward either an active stable position retaining the driver-ratchet assembly 7, 5 to ensure the retention of said pawl 5 in the spaced apart position of the bolt 3, or to a stable rest position in which the retaining member 9 is held back from the coach assembly -cliquet 7, 5 preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5.
  • the retaining member 9 has a general form of lever with two arms 41, 43 preferably forming an angle approximately 130 ° and articulated each on a common axis 45 connected to the lock housing.
  • the first arm 41 is an engagement arm adapted to retain the driver-ratchet assembly 7, 5 and the second arm 43 is a disengagement arm.
  • the engagement arm 41 holds the driver-ratchet assembly 7, 5 against the resilient bias of the driver-ratchet assembly 7, 5 towards the bolt 3 so that a rotational movement of the assembly ratchet driver 7, 5 is no longer possible clockwise, which allows the bolt 3 to rotate freely.
  • the retaining member 9 may be trapped with the driver-ratchet assembly 7, 5.
  • the driver 7 is furthermore provided with a catching tooth 7c capable of cooperating with a conjugate hook 9a carried by the retainer 9.
  • the attachment tooth 7c is preferably made in one piece with the driver 7.
  • a bistable helical spring 50 distinct from the return spring of the driver 7, is provided between the lock housing (not shown) and the retaining member 9 to form the bistable elastic return of the retaining member 9.
  • a first end 51 of the bistable coil spring 50 is attached to the engagement arm 41 and a second end 53 is held in position.
  • the second end 53 can be fixed on the lock housing for example.
  • bistable elastic return of the retaining member 9 only two positions of the retaining member 9 are stable thus clearly defining a stable rest position and an active stable position of the retaining member 9. All other positions are unstable positions in which the retaining member 9 will be biased by the bistable elastic return to switch to one or other of the two stable positions.
  • the lock In the active stable position, the lock is being opened or in the open position and the retaining member 9 is biased towards an active stable position for retaining the driver-ratchet assembly 7, 5 to ensure the retention of said pawl 5 in the spaced apart position of the bolt 3, which allows the bolt 3 to rotate freely.
  • the pawl 5 remains in its remote position, despite the elastic return force of the spring exerted on the pawl 5, by keeping away from the driver-ratchet assembly 7, 5 by the retaining member 9.
  • the bistable elastic return bias the retaining member 9 in a remote position thus preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5. More specifically, the body retaining 9 is biased into a remote position preventing a cooperation between the hook 9a of the retaining member 9 and the attachment tooth 7c of the driver 7.
  • the position of the retaining member 9 is sufficiently distant from the driver-ratchet assembly 7, 5 to prevent, when inadvertent movements of the driver-ratchet assembly 7, 5 occur, as for example in the case of violent shock such as a door slam, the coach 7 is retained by the retaining member 9.
  • a tilting means In order to tilt the retaining member 9 automatically between its two stable positions, there is provided a tilting means and a means for disengaging the retaining member 9.
  • the tilting means comprises two diametrically opposite pins 66 and 68 and carried by the visible face of the control wheel 23 of the actuator 8. It is also possible to provide a single crankpin.
  • the pins 66, 68 are able to cooperate with a first active face 9b of the retaining member 9 to tilt the retaining member 9 from the rest position to the active position.
  • crank pins 66, 68 are carried by the same control wheel 23 which already includes the crank pins driving the driver-ratchet assembly 7, 5 to the open position of the lock.
  • pins 66, 68 are passing through, so that two ends carried by a first face of the control wheel 23 act as tilting means and that the other two ends passing through the control wheel 23 are able to cooperate with the driver 7 to drive the trainer-ratchet assembly 7, 5 to the open position of the lock.
  • the driver 7 further comprises a guiding wall 7d forming a stop for the bistable elastic spring 50 for the return of the retaining member. 9 in the active stable position.
  • the guide wall 7d is able to guide the retaining member 9 into the active position for retaining the driver-ratchet assembly 7, 5.
  • the guide wall 7d is extended by the attachment tooth 7c carried by the driver 7.
  • the lock comprises a disengaging means adapted to cooperate with a second active face 9c of the retaining member 9 to disengage the retaining member 9 from the active position, when the bolt 3 rotates towards its position d opening of the lock, to return the retaining member 9 in its rest position.
  • the disengaging means comprises a cam 70, carried by a flat face projecting from the edge of the bolt 3 and adapted to cooperate with the second active face 9c of the retaining member 9 formed by the end of the disengagement arm. 43, as illustrated in figures 7 , 8 and 9 .
  • the axial projection to the bolt 3 forming the cam 70 allows the retaining member to be adapted to come into contact with the bolt 3 whose general transverse plane is located axially recessed at the plane comprising the active face 9c of the organ restraint.
  • the cam 70 has a ramp shape so that when the bolt 3 rotates, the face 9c of the disengagement arm 43 slides on the edge 70 of the bolt 3 to disengage the retaining member 9 from its active position. blocking.
  • the figure 3 is different from the figure 2 by the position of the pin 66 on the control wheel 23.
  • the control wheel 23 is rotated in the direction of the arrow 30, by the pinion 25 and the crankpin 66 abuts on the first active face 9b of the retaining member 9 to pivot the retaining member 9 ( figure 3 ).
  • the retaining member 9 starts to pivot in the direction represented by the arrow 74, which makes it possible to tilt the retaining member 9 against the bistable elastic biasing from the rest position to the active retaining position. .
  • control wheel 23 still rotated in the direction of the arrow 30 makes the other end of the crankpin 66 (not visible in the figure) engage in the recess 21 of the driver 7 (FIG. figure 4 ).
  • the pawl 5 then pivots in the counter-clockwise direction according to the arrow 31 while the retaining member 9 has tilted to a stable position ( figure 5 ) and is biased by the bistable elastic return to the active retaining position.
  • the end of the hook 9a abuts on the guide wall 7d carried by the driver 7 and thus slides on the guide wall 7d until it hooks on the attachment tooth 7c.
  • the pawl 5 has pivoted to allow the escape of the spout 5a of the notch 15.
  • the hook 9a of the retaining member 9 has hooked to the hooking tooth 7c of the driver 7 to retain the driver-ratchet assembly 7, 5 away from the bolt 3.
  • the retaining member 9 is thus in its active stable position of restraint.
  • the bolt 3 is no longer retained by the pawl 5 and can rotate to release the striker.
  • the bistable resilient biasing biasing the retaining member 9 in a remote position preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5 ensures the possible opening and closing the lock, including during accidental movements of the ratchet trainer assembly 7, 5.
  • the tilting and disengaging means of the retaining member 9 provided in the lock contribute to automatically tilting the retaining member 9 towards one or the other of its two stable positions.

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  • Lock And Its Accessories (AREA)

Description

La présente invention concerne une serrure électrique perfectionnée pour un ouvrant de véhicule automobile, notamment pour une portière, un hayon, une lunette de hayon ou le coffre d'un véhicule automobile.The present invention relates to an improved electric lock for an opening of a motor vehicle, in particular for a door, a tailgate, a tailgate bezel or the trunk of a motor vehicle.

Les serrures électriques classiques comportent un pêne pivotant destiné à coopérer avec une gâche ainsi qu'un cliquet pivotant entre une position ouverte et une position fermée de la serrure. Le cliquet retient le pêne pour empêcher la rotation du pêne dans la position fermée de la serrure.Conventional electric locks comprise a pivoting bolt intended to cooperate with a strike and a pivoting pawl between an open position and a closed position of the lock. The pawl holds the bolt to prevent rotation of the bolt in the closed position of the lock.

Dans le processus d'ouverture électrique de la serrure en fonctionnement normal, le cliquet qui retient le pêne, est entraîné par un actionneur électrique de façon à libérer le pêne. Dès qu'il n'est plus retenu par le cliquet, le pêne peut pivoter pour libérer la gâche. Une fois que l'actionneur électrique n'est plus en prise avec le cliquet, celui-ci est poussé par un ressort vers le pêne.In the process of electric opening of the lock in normal operation, the pawl that holds the bolt, is driven by an electric actuator so as to release the bolt. As soon as it is no longer held by the ratchet, the bolt can pivot to release the striker. Once the electric actuator is no longer engaged with the pawl, it is pushed by a spring towards the bolt.

Le pivotement du pêne est généralement provoqué par l'effort de réaction du joint élastique qui est intercalé entre la porte et le montant de porte du véhicule. Il peut arriver que le pêne ne tourne pas, alors qu'il n'est plus retenu par le cliquet. Ce cas de figure peut survenir notamment sur un hayon du coffre du véhicule, lorsqu'une couche de neige s'est déposée sur le hayon, le poids de la couche de neige venant compenser l'effort de réaction du joint de porte.The pivoting of the bolt is generally caused by the reaction force of the elastic seal which is interposed between the door and the door pillar of the vehicle. It may happen that the bolt does not rotate, while it is no longer retained by the ratchet. This case can occur in particular on a tailgate of the vehicle trunk, when a layer of snow was deposited on the tailgate, the weight of the snow layer to compensate for the reaction force of the door seal.

D'autre part, l'effort de réaction du joint nécessaire pour l'ouverture de l'ouvrant, peut dépendre de la température de l'environnement extérieur. En particulier, les températures froides rigidifient le joint de sorte que l'effort de réaction n'est plus suffisant pour générer la rotation du pêne. Egalement, l'usure du joint de réaction peut diminuer l'effort de réaction disponible à un niveau insuffisant pour générer la rotation du pêne.On the other hand, the reaction force of the seal required for the opening of the opening, may depend on the temperature of the external environment. In particular, the cold temperatures stiffen the joint so that the reaction force is no longer sufficient to generate the rotation of the bolt. Also, the wear of the reaction joint can decrease the reaction force available to a level insufficient to generate the rotation of the bolt.

Dans ce cas, lorsque le cliquet reprend sa position d'origine contre le pêne et que celui-ci n'a pas encore tourné, le cliquet bloque de nouveau la rotation du pêne, de sorte que l'ouvrant reste en position fermée. Cette situation est désagréable pour un utilisateur qui souhaite soulever le hayon après avoir commandé l'ouverture de la serrure par une télécommande par exemple.In this case, when the pawl returns to its original position against the bolt and it has not yet rotated, the pawl again blocks the rotation of the bolt, so that the opening remains in closed position. This situation is unpleasant for a user who wishes to lift the tailgate after having ordered the opening of the lock by a remote control for example.

On connaît déjà du document FR 2 782 111 une serrure électrique qui résout ce problème grâce à un moyen de blocage à rappel élastique permettant de bloquer le cliquet dans sa position écartée lorsque la serrure est ouverte et ce, au moins jusqu'au pivotement du pêne en vue de la libération de la gâche.We already know document FR 2 782 111 an electric lock that solves this problem with a resilient return blocking means for locking the pawl in its remote position when the lock is open and at least until pivoting of the bolt for the release of the striker.

Toutefois, dans certains rares cas de figures où l'ouvrant est soumis à de violents chocs, tel qu'un claquement de porte, le cliquet peut s'envoler et s'accrocher intempestivement au moyen de blocage. Le cliquet est alors bloqué à l'écart du pêne, empêchant la fermeture de la serrure.However, in some rare cases where the opening is subjected to violent shocks, such as a door slam, the ratchet can fly and cling inadvertently by means of blocking. The pawl is then locked away from the bolt, preventing the lock from closing.

De même, en position fermée de la serrure, une envolée de cliquet due à un choc sur le véhicule roulant par exemple, peut également provoquer l'accrochage du cliquet au moyen de blocage. Le cliquet est alors également bloqué à l'écart du pêne conduisant à l'ouverture non souhaitée de la serrure.Similarly, in the closed position of the lock, a flight of pawl due to a shock on the moving vehicle for example, can also cause the attachment of the pawl by means of blocking. The pawl is then also locked away from the bolt leading to the unwanted opening of the lock.

La présente invention vise à remédier à ce problème en proposant une serrure électrique perfectionnée qui permette en particulier d'assurer de façon fiable chacune des deux positions ouvertes et fermées de la serrure, même en cas de déplacement intempestif du cliquet.The present invention aims to remedy this problem by proposing an improved electric lock which allows in particular to reliably ensure each of the two open and closed positions of the lock, even in case of inadvertent movement of the pawl.

A cet effet, l'invention prévoit une serrure électrique selon la revendication 1. Cette serrure électrique représente une construction alternative de la serrure connue du document intermédiaire EP 1 862 618 A .For this purpose, the invention provides an electric lock according to claim 1. This electric lock represents an alternative construction of the lock known from the intermediate document EP 1 862 618 A .

Une serrure de l'état de la technique est par ailleurs connue du document DE100 43 574A .A lock of the state of the art is also known from the document DE100 43 574A .

Selon d'autres caractéristiques de la serrure électrique de l'invention:

  • ladite première face active susceptible de coopérer avec le moyen de basculement est portée par un bras d'engagement dudit levier qui est apte à retenir l'ensemble entraîneur-cliquet,
  • la serrure comporte en outre un moyen de désengagement apte à coopérer avec une seconde face active de l'organe de retenue pour désengager l'organe de retenue de la position stable active,
  • le moyen de désengagement comporte une came, portée par ledit pêne, apte à coopérer avec la seconde face active de l'organe de retenue,
  • la came possède une forme générale de rampe,
  • ladite seconde face active susceptible de coopérer avec le moyen de désengagement est portée par un bras de désengagement dudit levier,
  • ladite première extrémité est fixée au bras d'engagement,
  • l'entraîneur comporte en outre une paroi de guidage apte à guider l'organe de retenue vers sa position stable active de retenue de l'ensemble entraîneur-cliquet,
  • l'entraîneur comporte en outre une dent d'accrochage apte à coopérer avec un crochet conjugué porté par l'organe de retenue,
  • la dent d'accrochage est réalisée d'une seule pièce avec ledit entraîneur.
According to other characteristics of the electric lock of the invention:
  • said first active face capable of cooperating with the tilting means is carried by an engagement arm of said lever which is adapted to retain the driver-ratchet assembly,
  • the lock further comprises a disengaging means adapted to cooperate with a second active face of the retaining member to disengage the retaining member from the active stable position,
  • the disengaging means comprises a cam, carried by said bolt, adapted to cooperate with the second active face of the retaining member,
  • the cam has a general shape of ramp,
  • said second active face capable of cooperating with the disengaging means is carried by a disengagement arm of said lever,
  • said first end is fixed to the engagement arm,
  • the trainer further comprises a guide wall adapted to guide the retaining member towards its active stable position for retaining the driver-ratchet assembly,
  • the trainer further comprises a catching tooth adapted to cooperate with a conjugate hook carried by the retaining member,
  • the attachment tooth is made in one piece with said trainer.

D'autres avantages et caractéristiques apparaîtront à la lecture de la description de l'invention, ainsi que des figures suivantes sur lesquelles :

  • la figure 1 est une vue en perspective de la serrure de l'invention,
  • la figure 2 est une vue en plan de la serrure de la figure 1 en position fermée,
  • la figure 3 est une vue analogue à la figure 2, au cours du démarrage de l'actionneur,
  • la figure 4 est une vue analogue à la figure 3, au cours du pivotement de l'organe de retenue,
  • la figure 5 est une vue analogue à la figure 4, au cours du pivotement de l'entraîneur vers sa position écartée,
  • la figure 6 est une vue analogue à la figure 5, représentant le cliquet dans sa position maintenue écartée par l'organe de retenue,
  • la figure 7 est une vue analogue à la figure 6, au cours de la rotation du pêne,
  • la figure 8 est une vue analogue à la figure 7, représentant le pivotement de l'entraîneur vers sa position contre le pêne,
  • la figure 9 est une vue analogue à la figure 8, représentant la serrure en position ouverte.
Sur toutes les figures, les éléments identiques portent les mêmes numéros de référence.Other advantages and characteristics will appear on reading the description of the invention, as well as the following figures in which:
  • the figure 1 is a perspective view of the lock of the invention,
  • the figure 2 is a plan view of the lock of the figure 1 in closed position,
  • the figure 3 is a view similar to the figure 2 , during the start of the actuator,
  • the figure 4 is a view similar to the figure 3 during the pivoting of the retaining member,
  • the figure 5 is a view similar to the figure 4 , during the pivoting of the coach to his discarded position,
  • the figure 6 is a view similar to the figure 5 , representing the pawl in its position held apart by the retaining member,
  • the figure 7 is a view similar to the figure 6 , during the rotation of the bolt,
  • the figure 8 is a view similar to the figure 7 , representing the pivoting of the coach towards his position against the bolt,
  • the figure 9 is a view similar to the figure 8 , representing the lock in the open position.
In all the figures, the identical elements bear the same reference numbers.

La figure 1 représente différents éléments d'une serrure électrique selon l'invention pour un ouvrant de véhicule automobile, notamment pour une portière, un hayon, une lunette de hayon ou le coffre de véhicule automobile.The figure 1 represents various elements of an electric lock according to the invention for an opening of a motor vehicle, in particular for a door, a tailgate, a tailgate bezel or the trunk of a motor vehicle.

La serrure électrique comporte un pêne pivotant 3 destiné à coopérer avec une gâche (non représentée). En position fermée de la serrure, le pêne 3 est bloqué en rotation par un cliquet pivotant 5, empêchant la rotation du pêne 3. Le cliquet 5 est solidaire en pivotement d'un entraîneur 7 dont le pivotement est entraîné par un actionneur 8 d'ouverture de la serrure.The electric lock comprises a pivoting bolt 3 intended to cooperate with a striker (not shown). In the closed position of the lock, the bolt 3 is locked in rotation by a pivoting pawl 5, preventing the rotation of the bolt 3. The pawl 5 is pivotally integral with a driver 7 whose pivoting is driven by an actuator 8 of opening of the lock.

La serrure comporte en outre un organe de retenue 9 apte à retenir l'ensemble entraîneur-cliquet 7, 5 dans une position écartée du pêne 3 en position ouverte de la serrure permettant la rotation du pêne 3.The lock further comprises a retaining member 9 adapted to retain the driver-ratchet assembly 7, 5 in a position spaced from the bolt 3 in the open position of the lock allowing rotation of the bolt 3.

Le pêne 3 possède une forme de fourche délimitant un logement 11, destiné à recevoir la gâche qui coopère avec la serrure.The bolt 3 has a fork shape delimiting a housing 11 for receiving the striker which cooperates with the lock.

Le pêne 3 est susceptible de pivoter autour d'un axe 13.The bolt 3 is pivotable about an axis 13.

La bordure du pêne 3 présente également deux crans 15 et 17 dont l'un 15 est formé sur une des deux extrémités de la fourche du pêne 3. Les deux crans 15 et 17 sont destinés à coopérer avec le cliquet 5 pour définir une serrure à deux positions de fermeture. On peut également prévoir que le pêne 3 ne comporte qu'un seul cran.The edge of the bolt 3 also has two notches 15 and 17 one of which is formed on one of the two ends of the fork of the bolt 3. The two notches 15 and 17 are intended to cooperate with the pawl 5 to define a lock to two closed positions. It is also possible that the bolt 3 has only one notch.

Le cliquet 5 comporte une extrémité en forme de bec 5a susceptible de coopérer avec les crans 15 et 17 du pêne 3.The pawl 5 has a spout-shaped end 5a capable of cooperating with the notches 15 and 17 of the bolt 3.

Le cliquet 5 est soumis à une force de rappel élastique, qui le sollicite vers le pêne 3 comme indiqué par la flèche 18. Le cliquet 5 est solidaire en rotation de l'entraîneur 7 et, est susceptible de pivoter avec celui-ci autour d'un axe 19 entre une position ouverte (voir les figures 6 à 9) et une position fermée de la serrure (voir figure 2).The pawl 5 is subjected to an elastic restoring force, which urges it towards the bolt 3 as indicated by the arrow 18. The pawl 5 is integral in rotation with the driver 7 and is able to pivot with it around an axis 19 between an open position (see Figures 6 to 9 ) and a closed position of the lock (see figure 2 ).

Dans la position de fermeture de porte représentée sur la figure 2, le cliquet 5 vient prendre appui par son bec d'extrémité 5a contre le cran 15. De la sorte, la gâche est emprisonnée dans le logement 11, ce qui maintient la porte en état de fermeture.In the closed door position shown on the figure 2 , the pawl 5 is supported by its end nozzle 5a against the notch 15. In this way, the striker is trapped in the housing 11, which keeps the door in the closed state.

En se référant à la figure 1, l'entraîneur 7 possède une forme générale de botte avec un évidement 21 situé entre la partie semelle 7a et la partie talon 7b, pour coopérer avec l'actionneur 8.Referring to the figure 1 , the driver 7 has a general shape of boot with a recess 21 located between the sole portion 7a and the heel portion 7b, to cooperate with the actuator 8.

En effet, l'évidement 21 est dimensionné pour recevoir des manetons (non visibles sur la figure) d'une roue de commande 23 entraînée par un pignon 25 qui engrène avec une vis sans fin 27 portée par l'arbre de sortie d'un moteur électrique 29.Indeed, the recess 21 is dimensioned to receive crank pins (not visible in the figure) of a control wheel 23 driven by a pinion 25 which meshes with a worm 27 carried by the output shaft of a electric motor 29.

Comme le cliquet 5 et l'entraîneur 7 forment un ensemble, l'entraîneur 7 est donc susceptible d'un mouvement de pivotement autour dudit axe 19.As the pawl 5 and the driver 7 form an assembly, the driver 7 is therefore susceptible to a pivoting movement about said axis 19.

Ainsi, lorsque l'actionneur 8 est actionné pour l'ouverture électrique de la serrure, la roue de commande 23 est entraîné en rotation par le pignon 25 dans le sens horaire comme schématisé par la flèche 30 de la figure 4, et un des deux manetons s'engage dans l'évidement 21 de l'entraîneur 7.Thus, when the actuator 8 is actuated for the electric opening of the lock, the control wheel 23 is rotated by the pinion 25 in the clockwise direction as shown by the arrow 30 of the figure 4 , and one of the two crank pins engages in the recess 21 of the coach 7.

Lorsque cette rotation se poursuit, le maneton vient en contact avec la partie talon 7b de l'extrémité libre de l'entraîneur 7 et dès lors, toute rotation ultérieure de la roue 23 entraîne un pivotement de l'entraîneur 7 dans le sens anti-horaire comme représenté par la flèche 31 autour de l'axe 19.When this rotation continues, the crank pin comes into contact with the heel portion 7b of the free end of the driver 7 and therefore, any subsequent rotation of the wheel 23 causes a pivoting of the driver 7 in the anti-clockwise direction. time as represented by the arrow 31 around the axis 19.

Comme le cliquet 5 et l'entraîneur 7 sont solidaires en rotation, le cliquet 5 pivote dans le sens anti-horaire jusqu'à permettre l'échappement du bec 5a du cran 15 (figure 6).As the pawl 5 and the driver 7 are integral in rotation, the pawl 5 pivots in the counterclockwise direction to allow the escape of the spout 5a of the notch 15 ( figure 6 ).

Un blocage de l'entraîneur 7 en fin de pivotement est réalisé par l'organe de retenue 9.A locking of the driver 7 at the end of pivoting is performed by the retaining member 9.

A cet effet, l'organe de retenue 9 est soumis à un rappel élastique bistable, de façon à être sollicité vers l'une ou l'autre de deux positions stables dans lesquelles l'organe de retenue est sollicité soit vers une position stable active de retenue de l'ensemble entraîneur-cliquet 7, 5 pour assurer la retenue dudit cliquet 5 en position écartée du pêne 3, soit vers une position stable de repos dans laquelle l'organe de retenue 9 est maintenu en retrait de l'ensemble entraîneur-cliquet 7, 5 empêchant une coopération entre l'organe de retenue 9 et l'ensemble entraîneur-cliquet 7, 5. L'organe de retenue 9, présente une forme générale de levier à deux bras 41, 43 formant de préférence un angle de 130° environ et articulés chacun sur un axe commun 45 relié au boîtier de serrure.For this purpose, the retaining member 9 is subjected to a bistable elastic return, so as to be biased towards one or the other of two stable positions in which the retaining member is biased toward either an active stable position retaining the driver-ratchet assembly 7, 5 to ensure the retention of said pawl 5 in the spaced apart position of the bolt 3, or to a stable rest position in which the retaining member 9 is held back from the coach assembly -cliquet 7, 5 preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5. The retaining member 9 has a general form of lever with two arms 41, 43 preferably forming an angle approximately 130 ° and articulated each on a common axis 45 connected to the lock housing.

Le premier bras 41 est un bras d'engagement apte à retenir l'ensemble entraîneur-cliquet 7, 5 et le deuxième bras 43 est un bras de désengagement.The first arm 41 is an engagement arm adapted to retain the driver-ratchet assembly 7, 5 and the second arm 43 is a disengagement arm.

Le bras d'engagement 41 retient l'ensemble entraîneur-cliquet 7, 5 à l'encontre de la sollicitation élastique de l'ensemble entraîneur-cliquet 7, 5 vers le pêne 3 de sorte qu'un déplacement en rotation de l'ensemble entraîneur-cliquet 7, 5 n'est plus possible dans le sens horaire, ce qui permet au pêne 3 de pouvoir tourner librement. On peut emprisonner l'organe de retenue 9 avec l'ensemble entraîneur-cliquet 7, 5. Pour cela, on prévoit que l'entraîneur 7 comporte en outre une dent d'accrochage 7c apte à coopérer avec un crochet conjugué 9a porté par l'organe de retenue 9.The engagement arm 41 holds the driver-ratchet assembly 7, 5 against the resilient bias of the driver-ratchet assembly 7, 5 towards the bolt 3 so that a rotational movement of the assembly ratchet driver 7, 5 is no longer possible clockwise, which allows the bolt 3 to rotate freely. The retaining member 9 may be trapped with the driver-ratchet assembly 7, 5. For this purpose, the driver 7 is furthermore provided with a catching tooth 7c capable of cooperating with a conjugate hook 9a carried by the retainer 9.

Pour des raisons de coût, la dent d'accrochage 7c est réalisée de préférence d'une seule pièce avec l'entraîneur 7.For reasons of cost, the attachment tooth 7c is preferably made in one piece with the driver 7.

Un ressort hélicoïdal bistable 50, distinct du ressort de rappel de l'entraîneur 7, est prévu entre le boîtier de serrure (non représenté) et l'organe de retenue 9 pour former le rappel élastique bistable de l'organe de retenue 9.A bistable helical spring 50, distinct from the return spring of the driver 7, is provided between the lock housing (not shown) and the retaining member 9 to form the bistable elastic return of the retaining member 9.

Une première extrémité 51 du ressort hélicoïdal bistable 50 est fixée au bras d'engagement 41 et une deuxième extrémité 53 est maintenue en position. La deuxième extrémité 53 peut être fixée sur le boitier de la serrure par exemple.A first end 51 of the bistable coil spring 50 is attached to the engagement arm 41 and a second end 53 is held in position. The second end 53 can be fixed on the lock housing for example.

Grâce au rappel élastique bistable de l'organe de retenue 9, seules deux positions de l'organe de retenue 9 sont stables définissant ainsi clairement une position stable de repos et une position stable active de l'organe de retenue 9. Toutes les autres positions sont des positions instables dans lesquelles l'organe de retenue 9 sera sollicité par le rappel élastique bistable à basculer vers l'une ou l'autre des deux positions stables.Thanks to the bistable elastic return of the retaining member 9, only two positions of the retaining member 9 are stable thus clearly defining a stable rest position and an active stable position of the retaining member 9. All other positions are unstable positions in which the retaining member 9 will be biased by the bistable elastic return to switch to one or other of the two stable positions.

En position stable active, la serrure est en cours d'ouverture ou en position ouverte et l'organe de retenue 9 est sollicité vers une position stable active de retenue de l'ensemble entraîneur-cliquet 7, 5 pour assurer la retenue dudit cliquet 5 en position écartée du pêne 3, ce qui permet au pêne 3 de pouvoir tourner librement.In the active stable position, the lock is being opened or in the open position and the retaining member 9 is biased towards an active stable position for retaining the driver-ratchet assembly 7, 5 to ensure the retention of said pawl 5 in the spaced apart position of the bolt 3, which allows the bolt 3 to rotate freely.

Ainsi, même si aucune force de réaction n'est exercée par exemple par un joint, le cliquet 5 reste dans sa position écartée, malgré la force de rappel élastique du ressort exercée sur le cliquet 5, grâce au maintien à l'écart de l'ensemble entraîneur-cliquet 7, 5 par l'organe de retenue 9.Thus, even if no reaction force is exerted for example by a seal, the pawl 5 remains in its remote position, despite the elastic return force of the spring exerted on the pawl 5, by keeping away from the driver-ratchet assembly 7, 5 by the retaining member 9.

En position stable de repos, le rappel élastique bistable sollicite l'organe de retenue 9 dans une position éloignée empêchant donc une coopération entre l'organe de retenue 9 et l'ensemble entraîneur-cliquet 7, 5. Plus précisément, l'organe de retenue 9 est sollicité dans une position éloignée empêchant une coopération entre le crochet 9a de l'organe de retenue 9 et la dent d'accrochage 7c de l'entraîneur 7.In the stable rest position, the bistable elastic return bias the retaining member 9 in a remote position thus preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5. More specifically, the body retaining 9 is biased into a remote position preventing a cooperation between the hook 9a of the retaining member 9 and the attachment tooth 7c of the driver 7.

Ainsi, la position de l'organe de retenue 9 est suffisamment éloignée de l'ensemble entraîneur-cliquet 7, 5 pour éviter que, lorsque des déplacements intempestifs de l'ensemble entraîneur-cliquet 7, 5 surviennent, comme par exemple en cas de choc violent tel qu'un claquement de porte, l'entraîneur 7 est retenu par l'organe de retenue 9.Thus, the position of the retaining member 9 is sufficiently distant from the driver-ratchet assembly 7, 5 to prevent, when inadvertent movements of the driver-ratchet assembly 7, 5 occur, as for example in the case of violent shock such as a door slam, the coach 7 is retained by the retaining member 9.

De même, en position fermée de la serrure, une envolée de cliquet 5 due à un choc sur le véhicule roulant par exemple, ne permet pas l'accrochage du cliquet 5 qui est suffisamment tenu à l'écart de l'organe de retenue 9.Similarly, in the closed position of the lock, a flight of pawl 5 due to impact on the moving vehicle, for example, does not allow attachment of the pawl 5 which is sufficiently held away from the retaining member 9 .

Afin de faire basculer l'organe de retenue 9 automatiquement entre ses deux positions stables, il est prévu un moyen de basculement et un moyen de désengagement de l'organe de retenue 9.In order to tilt the retaining member 9 automatically between its two stable positions, there is provided a tilting means and a means for disengaging the retaining member 9.

Selon le mode de réalisation illustré sur la figure 1, le moyen de basculement comprend deux manetons 66 et 68 diamétralement opposés et portés par la face visible de la roue de commande 23 de l'actionneur 8. On peut également prévoir un seul maneton.According to the embodiment illustrated on the figure 1 , the tilting means comprises two diametrically opposite pins 66 and 68 and carried by the visible face of the control wheel 23 of the actuator 8. It is also possible to provide a single crankpin.

Les manetons 66, 68 sont aptes à coopérer avec une première face active 9b de l'organe de retenue 9 pour faire basculer l'organe de retenue 9 de la position de repos à la position active.The pins 66, 68 are able to cooperate with a first active face 9b of the retaining member 9 to tilt the retaining member 9 from the rest position to the active position.

Très avantageusement, les manetons 66, 68 sont portés par la même roue de commande 23 qui comporte déjà les manetons entraînant l'ensemble entraîneur-cliquet 7, 5 vers la position ouverte de la serrure.Very advantageously, the crank pins 66, 68 are carried by the same control wheel 23 which already includes the crank pins driving the driver-ratchet assembly 7, 5 to the open position of the lock.

On peut prévoir que les manetons 66, 68 soient traversant, de sorte que deux extrémités portées par une première face de la roue de commande 23 agissent comme moyen de basculement et que les deux autres extrémités traversant la roue de commande 23 soient aptes à coopérer avec l'entraîneur 7 pour entraîner l'ensemble entraîneur-cliquet 7, 5 vers la position ouverte de la serrure.It can be provided that the pins 66, 68 are passing through, so that two ends carried by a first face of the control wheel 23 act as tilting means and that the other two ends passing through the control wheel 23 are able to cooperate with the driver 7 to drive the trainer-ratchet assembly 7, 5 to the open position of the lock.

De façon avantageuse, l'entraîneur 7 comporte en outre une paroi de guidage 7d formant une butée pour le ressort élastique bistable 50 pour le retour de l'organe de retenue 9 dans la position stable active. La paroi de guidage 7d est apte à guider l'organe de retenue 9 dans la position active de retenue de l'ensemble entraîneur-cliquet 7, 5.Advantageously, the driver 7 further comprises a guiding wall 7d forming a stop for the bistable elastic spring 50 for the return of the retaining member. 9 in the active stable position. The guide wall 7d is able to guide the retaining member 9 into the active position for retaining the driver-ratchet assembly 7, 5.

De préférence, la paroi de guidage 7d est prolongée par la dent d'accrochage 7c portée par l'entraîneur 7.Preferably, the guide wall 7d is extended by the attachment tooth 7c carried by the driver 7.

On prévoit de plus que la serrure comporte un moyen de désengagement apte à coopérer avec une seconde face active 9c de l'organe de retenue 9 pour désengager l'organe de retenue 9 de la position active, lorsque le pêne 3 tourne vers sa position d'ouverture de la serrure, pour ramener l'organe de retenue 9 dans sa position de repos.It is further provided that the lock comprises a disengaging means adapted to cooperate with a second active face 9c of the retaining member 9 to disengage the retaining member 9 from the active position, when the bolt 3 rotates towards its position d opening of the lock, to return the retaining member 9 in its rest position.

Avantageusement, le moyen de désengagement comporte une came 70, portée par une face plane faisant saillie à la bordure du pêne 3 et apte à coopérer avec la seconde face active 9c de l'organe de retenue 9 formée par l'extrémité du bras de désengagement 43, comme illustré sur les figures 7, 8 et 9.Advantageously, the disengaging means comprises a cam 70, carried by a flat face projecting from the edge of the bolt 3 and adapted to cooperate with the second active face 9c of the retaining member 9 formed by the end of the disengagement arm. 43, as illustrated in figures 7 , 8 and 9 .

La saillie axiale au pêne 3 formant la came 70 permet à l'organe de retenue d'être apte à entrer en contact avec le pêne 3 dont le plan transversal général est situé axialement en retrait au plan comprenant la face active 9c de l'organe de retenue.The axial projection to the bolt 3 forming the cam 70 allows the retaining member to be adapted to come into contact with the bolt 3 whose general transverse plane is located axially recessed at the plane comprising the active face 9c of the organ restraint.

On peut prévoir que la came 70 possède une forme de rampe de sorte que lorsque le pêne 3 tourne, la face 9c du bras de désengagement 43 glisse sur la bordure 70 du pêne 3 pour faire désengager l'organe de retenue 9 de sa position active de blocage.It can be provided that the cam 70 has a ramp shape so that when the bolt 3 rotates, the face 9c of the disengagement arm 43 slides on the edge 70 of the bolt 3 to disengage the retaining member 9 from its active position. blocking.

On va maintenant décrire le fonctionnement de la serrure de l'invention, en référence aux figures 3 à 9 à partir de la position de fermeture de la serrure illustrée sur la figure 2.We will now describe the operation of the lock of the invention, with reference to Figures 3 to 9 from the closed position of the lock shown on the figure 2 .

La figure 3 se distingue de la figure 2 par la position du maneton 66 sur la roue de commande 23. Lorsque le moteur 29 de l'actionneur 8 est mis sous tension, la roue de commande 23 est entraînée en rotation dans le sens de la flèche 30, par le pignon 25 et le maneton 66 vient en appui sur la première face active 9b de l'organe de retenue 9 pour faire pivoter l'organe de retenue 9 (figure 3).The figure 3 is different from the figure 2 by the position of the pin 66 on the control wheel 23. When the motor 29 of the actuator 8 is energized, the control wheel 23 is rotated in the direction of the arrow 30, by the pinion 25 and the crankpin 66 abuts on the first active face 9b of the retaining member 9 to pivot the retaining member 9 ( figure 3 ).

L'organe de retenue 9 commence à pivoter dans le sens représenté par la flèche 74, ce qui permet de faire basculer l'organe de retenue 9 à l'encontre de la sollicitation élastique bistable depuis la position de repos vers la position active de retenue.The retaining member 9 starts to pivot in the direction represented by the arrow 74, which makes it possible to tilt the retaining member 9 against the bistable elastic biasing from the rest position to the active retaining position. .

Puis la roue de commande 23 toujours entraînée en rotation selon la flèche 30 fait s'engager l'autre extrémité du maneton 66 (non visible sur la figure) dans l'évidement 21 de l'entraîneur 7 (figure 4).Then the control wheel 23 still rotated in the direction of the arrow 30 makes the other end of the crankpin 66 (not visible in the figure) engage in the recess 21 of the driver 7 (FIG. figure 4 ).

Le cliquet 5 pivote alors dans le sens anti-horaire selon la flèche 31 tandis que l'organe de retenue 9 a basculé en position stable (figure 5) et est sollicité par le rappel élastique bistable vers la position active de retenue.The pawl 5 then pivots in the counter-clockwise direction according to the arrow 31 while the retaining member 9 has tilted to a stable position ( figure 5 ) and is biased by the bistable elastic return to the active retaining position.

L'extrémité du crochet 9a vient en appui sur la paroi de guidage 7d portée par l'entraîneur 7 et coulisse ainsi sur la paroi de guidage 7d jusqu'à venir s'accrocher à la dent d'accrochage 7c.The end of the hook 9a abuts on the guide wall 7d carried by the driver 7 and thus slides on the guide wall 7d until it hooks on the attachment tooth 7c.

Sur la figure 6, le cliquet 5 a pivoté jusqu'à permettre l'échappement du bec 5a du cran 15.On the figure 6 , the pawl 5 has pivoted to allow the escape of the spout 5a of the notch 15.

Le crochet 9a de l'organe de retenue 9 s'est accroché à la dent d'accrochage 7c de l'entraîneur 7 pour retenir l'ensemble entraîneur-cliquet 7, 5 à l'écart du pêne 3. L'organe de retenue 9 est ainsi dans sa position stable active de retenue.The hook 9a of the retaining member 9 has hooked to the hooking tooth 7c of the driver 7 to retain the driver-ratchet assembly 7, 5 away from the bolt 3. The retaining member 9 is thus in its active stable position of restraint.

Le pêne 3 n'est plus retenu par le cliquet 5 et peut pivoter pour libérer la gâche.The bolt 3 is no longer retained by the pawl 5 and can rotate to release the striker.

Dans l'hypothèse où aucune force de réaction n'est exercée sur le pêne 3, il reste dans la position illustrée sur la figure 6, mais le cliquet 5 reste dans sa position écartée, malgré la force de rappel élastique du ressort, grâce à la retenue de l'organe de retenue 9 avec l'entraîneur 7.In the event that no reaction force is exerted on the bolt 3, it remains in the position illustrated on the figure 6 , but the pawl 5 remains in its position apart, despite the elastic return force of the spring, thanks to the retention of the retaining member 9 with the driver 7.

Dans le cas où un effort de réaction est exercé sur le pêne 3 par le joint, le pêne 3 pivote (figure 7) dans le sens horaire selon la flèche 44, pour libérer la gâche. La rotation du pêne 3 autour de son axe 13 a pour effet de mettre en contact, puis de faire glisser le bras de désengagement 43 sur la came 70 du pêne 3 de telle sorte que l'organe de retenue 9 pivote dans le sens de la flèche 76 de la figure 8 et décroche le crochet 9a de la dent d'accrochage 7c, ce qui désengage l'entraîneur 7 du pêne 3 (figure 8).In the case where a reaction force is exerted on the bolt 3 by the seal, the bolt 3 pivots ( figure 7 ) clockwise along the arrow 44 to release the striker. The rotation of the bolt 3 about its axis 13 has the effect of contacting and then sliding the disengagement arm 43 on the cam 70 of the bolt 3 so that the retaining member 9 pivots in the direction of the arrow 76 of the figure 8 and unhooks the hook 9a of the hooking tooth 7c, which disengages the driver 7 from the bolt 3 ( figure 8 ).

On constate donc que le désengagement est commandé par le pêne 3 en position ouverte, ce qui contribue encore à assurer que l'organe de retenue 9 est maintenu en retrait de l'ensemble entraîneur-cliquet 7, 5 tant que le pêne n'a pas tourné.It can thus be seen that the disengagement is controlled by the bolt 3 in the open position, which further contributes to ensuring that the retaining member 9 is held back from the driver-ratchet assembly 7, 5 as long as the bolt not turned.

Comme l'entraîneur 7 est libéré, il pivote vers le pêne 3 sous l'action de son ressort de rappel dans le sens horaire illustré par la flèche 78 de la figure 8.As the trainer 7 is released, it pivots towards the bolt 3 under the action of its return spring in the clockwise direction illustrated by the arrow 78 of the figure 8 .

Sur la figure 9, le pêne 3 a complètement tourné et l'organe de retenue 9 est revenu en position stable de repos.On the figure 9 , the bolt 3 has completely rotated and the retaining member 9 has returned to a stable rest position.

On comprend qu'une telle serrure électrique dont l'organe de retenue 9 est soumis à un rappel élastique bistable, de façon à être sollicité soit vers une position stable active de retenue de l'ensemble entraîneur-cliquet 7, 5 soit vers une position stable de repos permet de résoudre les problèmes de l'art antérieur en sollicitant toujours l'organe de retenue vers l'une ou l'autre de ses deux positions stables.It is understood that such an electric lock whose retaining member 9 is subjected to a bistable elastic return, so as to be biased either to an active stable position of retaining the driver-ratchet assembly 7, 5 or to a position Stable rest solves the problems of the prior art by always biasing the retaining member towards one or other of its two stable positions.

Le fait qu'en position stable de repos, le rappel élastique bistable sollicite l'organe de retenue 9 dans une position éloignée empêchant une coopération entre l'organe de retenue 9 et l'ensemble entraîneur-cliquet 7, 5 assure la possible ouverture et fermeture de la serrure, y compris lors de déplacements intempestifs de l'ensemble entraîneur-cliquet 7, 5.The fact that in stable rest position, the bistable resilient biasing biasing the retaining member 9 in a remote position preventing a cooperation between the retaining member 9 and the driver-ratchet assembly 7, 5 ensures the possible opening and closing the lock, including during accidental movements of the ratchet trainer assembly 7, 5.

Les moyens de basculement et de désengagement de l'organe de retenue 9 prévus dans la serrure contribuent à faire basculer automatiquement l'organe de retenue 9 vers l'une ou l'autre de ses deux positions stables.The tilting and disengaging means of the retaining member 9 provided in the lock contribute to automatically tilting the retaining member 9 towards one or the other of its two stable positions.

Claims (10)

  1. An electric latch for a door leaf of a motor vehicle, said latch including:
    - a pivoting bolt (3) intended to cooperate with a striker,
    - a pawl (5) pivoting between an open position and a closed position of the latch, said pawl (5) being subjected to an elastic return which urges it toward said bolt (3), and being capable of cooperating with said bolt (3) to prevent a rotation of said bolt (3) in the closed position of the latch,
    - a driver (7) pivotally secured to said pawl (5),
    - a retaining member (9) capable of retaining the driver-pawl set (7, 5) in a position deviated from said bolt (3) in the open position of the latch enabling the rotation of the bolt (3), the retaining member (9) being subjected to a bistable elastic return so as to be urged by the latter either toward a stable active position for retaining the driver-pawl set (7, 5) to ensure the retaining of said pawl (5) in the position deviated from said bolt (3), or toward a stable rest position in which the retaining member (9) is held set-back from the driver-pawl set (7, 5) preventing a cooperation between the retaining member (9) and the driver-pawl set (7, 5),
    - an actuator (8) for opening the latch,
    - a tilting means capable of cooperating with a first active face (9b) of the retaining member (9) to make the retaining member (9) tilt from the stable rest position to the stable active position,
    characterized in that the tilting means includes at least one crank-pin (66, 68) carried by a control wheel (23) of said actuator (8), the crank-pin (66,68) being capable of cooperating with the first active face (9b) of the retaining member (9), in that the bistable elastic return includes a bistable coil spring (50) whose first end (51) is fastened to the retaining member (9) and whose second end (53) is held in position,
    in that the retaining member (9) has a general shape of a two-armed lever (41, 43) each hinged on a common axis (45),
    and in that the crank-pin (66, 68) is a through crank-pin and the through end is capable of cooperating with said driver (7) to drive the driver-pawl set (7, 5) toward the open position of the latch.
  2. The latch according to claim 1, characterized in that said first active face (9b) likely to cooperate with the tilting means is carried by an engagement arm (41) of said lever which is capable of retaining the driver-pawl set (7, 5).
  3. The latch according to any one of the preceding claims, characterized in that the latch further includes a disengagement means capable of cooperating with a second active face (9c) of the retaining member (9) to disengage the retaining member (9) from the active stable position.
  4. The latch according to claim 3, characterized in that the disengagement means includes a cam (70), carried by said bolt (3), capable of cooperating with the second active face (9c) of the retaining member (9).
  5. The latch according to claim 4, characterized in that the cam (70) has a general shape of a ramp.
  6. The latch according to any one of claims 3 to 5, characterized in that said second active face (9c) likely to cooperate with the disengagement means is carried by a disengagement arm (43) of said lever.
  7. The latch according to any of the preceding claims, characterized in that said first end (51) is fastened to the engagement arm (41).
  8. The latch according to any one of the preceding claims, characterized in that the driver (7) further includes a guide wall (7d) capable of guiding the retaining member (9) toward its active stable position for retaining the driver-pawl set (7, 5).
  9. The latch according to any one of the preceding claims, characterized in that the driver (7) further includes a hooking tooth (7c) capable of cooperating with a mating hook (9a) carried by the retaining member (9).
  10. The latch according to the preceding claim, characterized in that the hooking tooth (7c) is integrally made with said driver (7).
EP08708360.6A 2007-01-30 2008-01-29 Advanced electric lock for the opening of an automotive vehicle Active EP2115247B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0700630A FR2911897B1 (en) 2007-01-30 2007-01-30 PERFECTED ELECTRICAL LOCK FOR OPENING OF A MOTOR VEHICLE
PCT/EP2008/051043 WO2008095831A1 (en) 2007-01-30 2008-01-29 Advanced electric lock for the opening of an automotive vehicle

Publications (2)

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EP2115247A1 EP2115247A1 (en) 2009-11-11
EP2115247B1 true EP2115247B1 (en) 2018-03-14

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EP08708360.6A Active EP2115247B1 (en) 2007-01-30 2008-01-29 Advanced electric lock for the opening of an automotive vehicle

Country Status (6)

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EP (1) EP2115247B1 (en)
CN (2) CN103953230B (en)
BR (1) BRPI0806998B1 (en)
FR (1) FR2911897B1 (en)
MX (1) MX2009008056A (en)
WO (1) WO2008095831A1 (en)

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TWI840279B (en) * 2023-07-25 2024-04-21 精工電機股份有限公司 Electric drive master switch lock

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JP4953485B2 (en) * 2010-02-15 2012-06-13 三井金属アクト株式会社 Vehicle door latch device
US8562035B2 (en) * 2010-11-15 2013-10-22 Rockwell Automation Technologies, Inc. Self-aligning safety lock
US10415275B2 (en) * 2016-04-15 2019-09-17 Hyundai Motor Company Trunk latch module for vehicle
KR101795252B1 (en) * 2016-05-11 2017-11-08 현대자동차주식회사 Trunk latch module for vehicle
DE102018109477A1 (en) * 2018-04-20 2019-10-24 Kiekert Ag Motor vehicle drive arrangement

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Publication number Priority date Publication date Assignee Title
TWI840279B (en) * 2023-07-25 2024-04-21 精工電機股份有限公司 Electric drive master switch lock

Also Published As

Publication number Publication date
CN103953230A (en) 2014-07-30
FR2911897B1 (en) 2012-10-12
CN103953230B (en) 2017-04-12
EP2115247A1 (en) 2009-11-11
CN101622412A (en) 2010-01-06
BRPI0806998B1 (en) 2019-01-15
FR2911897A1 (en) 2008-08-01
MX2009008056A (en) 2009-08-07
BRPI0806998A2 (en) 2014-12-30
WO2008095831A1 (en) 2008-08-14

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