EP3816378B1 - Lock for door of a motor vehicle - Google Patents

Lock for door of a motor vehicle Download PDF

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Publication number
EP3816378B1
EP3816378B1 EP20203179.5A EP20203179A EP3816378B1 EP 3816378 B1 EP3816378 B1 EP 3816378B1 EP 20203179 A EP20203179 A EP 20203179A EP 3816378 B1 EP3816378 B1 EP 3816378B1
Authority
EP
European Patent Office
Prior art keywords
bolt
pawl
attachment point
latch
axis
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
EP20203179.5A
Other languages
German (de)
French (fr)
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EP3816378A1 (en
Inventor
Laurent Duriez
François DEBROUCKE
Jean-Baptiste Grislain
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea AccessSolutions France SAS
Original Assignee
U Shin France SAS
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Publication date
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Publication of EP3816378A1 publication Critical patent/EP3816378A1/en
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Publication of EP3816378B1 publication Critical patent/EP3816378B1/en
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Classifications

    • 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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • 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
    • 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
    • E05B85/04—Strikers
    • E05B85/045—Strikers for bifurcated bolts
    • 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
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • 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

Definitions

  • the present invention relates to a lock for a motor vehicle door as well as a motor vehicle comprising such a lock.
  • a motor vehicle lock is intended to be mounted fixed on a motor vehicle door and typically comprises a bolt intended to pivot, when closing, in one direction around a striker plate fixed to the structure of the motor vehicle in order to ensure the closing of the opening. Opening of the sash is permitted by rotation of the bolt in the opposite direction.
  • the rotation in the opposite direction during the opening of the leaf follows the movement of the external or internal handle which is connected to the lock by a control means, for example a cable of the Bowden type, which releases the bolt via a hooking device in the desired direction.
  • the lock also contains a rotary pawl intended to retain the bolt in the closed position in which the latter retains the keeper.
  • the bolt comprises two attachment points and the pawl comprises a single attachment point intended to come into abutment against each of the two attachment points of the bolt, depending on the state of the opening.
  • DE 28 47 888 A1 discloses a lock, comprising a bolt with two attachment points and a pawl with two attachment points to abut in a partially closed position and in a fully closed position.
  • the radius of the pawl is the same to come into abutment against the first and the second attachment point of the bolt to pass the lock from the fully closed position to the partially closed position.
  • the opening torque is imposed by car manufacturers, therefore constraining the opening force and a fortiori the radius of the pawl.
  • the noises generated by the passage of the lock from its fully closed position to its open position and passing through its partially closed position are harmful, for example for the user of the motor vehicle.
  • the ratchet having two attachment points, this makes it possible to manage two different ratchet radii for each attachment point.
  • the inter-notch passage from the fully closed position to the partially closed position of the lock is easier.
  • the second attachment point of the pawl is closer to the second attachment point of the bolt.
  • the position of the pawl being different when the lock is in the fully closed position or in the partially closed position, in that the pawl of the present invention comprises two distinct attachment points, the covering of the bolt on the pawl is therefore variable during the different positions of the lock.
  • This difference in covering of the bolt on the pawl provides better mechanical strength and thus reduces the risk of deformation and/or trimming of the parts making up the lock, for example during an accident of the motor vehicle.
  • overlap means a length of overlap of the bolt on the pawl, that is to say the surface and the thickness of the bolt in contact with the pawl.
  • the present invention also provides a reduction in effort for electrically opened locks.
  • the bolt comprises a first point of attachment of the bolt configured to come into abutment against the first point of attachment of the pawl in the partially closed position, and the bolt includes a second bolt hooking point configured to abut the second latch hooking point in the fully closed position.
  • the first attachment point of the pawl is farther from the axis of the pawl than the second attachment point of the pawl.
  • the distance from the second attachment point of the pawl and the axis of the pawl is between 30% and 90%, preferably 50% to 80% of the distance between the first attachment point of the pawl and the axis ratchet.
  • the bolt comprises a continuous bearing surface configured to hold the pawl in the open position of the lock.
  • the bearing surface of the bolt forms a ramp.
  • the attachment points are formed by teeth.
  • the first attachment point of the bolt and the second attachment point of the bolt are located on either side of a housing of the bolt, said housing receiving the keeper.
  • the first attachment point of the bolt and the second attachment point of the bolt are located on the same side with respect to a housing of the bolt, said housing receiving the keeper.
  • the open position is reached according to a first direction of rotation along the bolt axis and the closed position is reached in a second direction of rotation along the bolt axis, the surface of support being located on a face disposed in the second direction of rotation along the axis of the bolt with respect to an inner surface of the first attachment point of the bolt of the first attachment point of the bolt.
  • the movement of the pawl is carried out by an electric actuator.
  • the invention also relates to a motor vehicle comprising a lock according to the invention.
  • the Figure 1A shows a lock 1 for a motor vehicle door in a completely closed position, according to the first embodiment of the invention.
  • the lock 1 comprises a bolt 2 configured to rotate around a bolt rotation axis A, a latch 3 configured to rotate around a latch rotation axis B and a striker plate (not shown).
  • the bolt 2 has two bolt attachment points C and D and the pawl has two pawl attachment points E and F.
  • the attachment points of the bolt C and D are located on either side of a housing 4 of the bolt 2.
  • This housing 4 corresponding to a groove in the bolt 2, is configured to receive the strike plate of lock 1.
  • the first attachment point of the bolt C has a greater width than the second attachment point of the bolt D.
  • the first point of attachment of the bolt C is formed by an inner surface of the first point of attachment of the bolt 5a extending substantially towards the axis of rotation of the bolt A, forming a part of the housing 4 of the bolt 2 and an outer surface of the first attachment point of the bolt 5b extending substantially parallel to the inner surface of the first attachment point of the bolt 5a, the inner surface of the first attachment point of the bolt 5a and the outer surface of the first attachment point of the bolt 5b being connected by a support surface 6, forming a ramp.
  • the second pawl attachment point F is located closer to the pawl rotation axis B than the first pawl attachment point E.
  • the distance of the second attachment point of the pawl F and the axis of the pawl B is between 30% and 90%, preferably 50% to 80% of the distance between the first attachment point of the pawl E and pawl pin B.
  • each attachment point of the pawl E and F extends radially and perpendicularly with respect to the axis of extension of the pawl 3.
  • the second point of attachment pawl attachment point F is shorter than the first pawl attachment point E.
  • Each pawl attachment point E and F has an inner surface of the first attachment point of the pawl 7a, respectively an inner surface of the second attachment point of the pawl 7b, facing the axis of rotation of the pawl B and a outer surface of the first hooking point of the pawl 8a, respectively an outer surface of the second hooking point of the pawl 8b, facing away from the axis of rotation of the pawl B.
  • the second attachment point of the bolt D is arranged between the first attachment point of the pawl E and the second attachment point of the pawl F.
  • the second attachment point of the bolt D is arranged against the outer surface 8b of the second attachment point of the pawl F and the inner surface 7a of the first attachment point of the pawl E.
  • each bolt attachment point C and D and each pawl attachment point E and F takes the form of a tooth.
  • the figure 1B shows the lock 1 in a partially closed position, according to the first embodiment of the invention.
  • the second latch attachment point F and the second bolt attachment point D are free.
  • the figure 1C shows the lock 1 in an open position, according to the first embodiment of the invention.
  • each attachment point of the pawl E and F rest against the first attachment point of the bolt C.
  • a support surface 6, forming a ramp is arranged between the inner surface of the first attachment point of the bolt 5a and the outer surface of the first attachment point of the bolt 5b.
  • the figure 2A shows a lock 100 in a fully closed position, according to a second embodiment of the invention.
  • the first attachment point of the bolt C' and the second attachment point of the bolt D' are located on the same side with respect to the housing 4 of the bolt 200.
  • the support surface 6, forming the ramp, presented in the first embodiment comprises, in this second embodiment, a recess 9 so as to form the first attachment point of the bolt C 'and the second attachment point of the bolt D' on either side of this recess 9.
  • the figure 2B shows the lock 100 in a partially closed position, according to the second embodiment of the invention.
  • the second attachment point of the pawl F and the second attachment point of the bolt D' are free.
  • the Fig. 2C shows the lock 100 in the open position, according to the second embodiment of the invention.
  • the free end of the first hooking point of the pawl E which abuts against a bearing surface 6, forming a ramp, formed between the inner surface of the hooking point of the bolt 5a' and a bolt first hooking point outer surface 5b' extending substantially parallel to the bolt first hooking point inner surface 5a', the bolt first hooking point inner surface 5a' and the outer surface of the first attachment point of the bolt 5b' being connected by the ramp.
  • the picture 3 shows the lock 1 in an open position, according to the first embodiment of the invention.
  • a first bolt center circle A, passing through the first free end of the second pawl attachment point F is shown as well as a second bolt center circle A, passing through the first free end of the first hooking point of the pawl E.
  • the ratio d between the radius of the circle centered on the bolt axis A and passing through the first free end, and the radius of the circle formed by the bolt axis A and passing through the second free end, is between 0.1mm and 1mm.
  • the striker is therefore trapped in the housing 4 of the bolt 2, 200.
  • the second attachment point of the pawl F is in abutment against the second attachment point of the bolt D, D'.
  • the displacement of the pawl 3 can be achieved by an electric actuator, so that the handle is no longer connected to the lock 1, 100 by a Bowden type cable, for example.

Description

La présente invention concerne une serrure pour ouvrant de véhicule automobile ainsi qu'un véhicule automobile comprenant une telle serrure.The present invention relates to a lock for a motor vehicle door as well as a motor vehicle comprising such a lock.

Une serrure de véhicule automobile est destinée à être montée fixe sur un ouvrant de véhicule automobile et comporte typiquement un pêne destiné à pivoter, lors de la fermeture, dans un sens autour d'une gâche fixée sur la structure du véhicule automobile afin d'assurer la fermeture de l'ouvrant. L'ouverture de l'ouvrant est permise par une rotation du pêne en sens inverse. La rotation en sens inverse lors de l'ouverture de l'ouvrant fait suite au déplacement de la poignée extérieure ou intérieure qui est reliée à la serrure par un moyen de commande, par exemple un câble de type Bowden, qui libère le pêne via un dispositif d'accrochage dans la direction souhaitée.A motor vehicle lock is intended to be mounted fixed on a motor vehicle door and typically comprises a bolt intended to pivot, when closing, in one direction around a striker plate fixed to the structure of the motor vehicle in order to ensure the closing of the opening. Opening of the sash is permitted by rotation of the bolt in the opposite direction. The rotation in the opposite direction during the opening of the leaf follows the movement of the external or internal handle which is connected to the lock by a control means, for example a cable of the Bowden type, which releases the bolt via a hooking device in the desired direction.

La serrure renferme également un cliquet rotatif destiné à retenir le pêne dans la position de fermeture dans laquelle ce dernier retient la gâche.The lock also contains a rotary pawl intended to retain the bolt in the closed position in which the latter retains the keeper.

Dans les serrures connues de l'art antérieur, le pêne comprend deux points d'accrochage et le cliquet comprend un unique point d'accrochage destiné à venir en butée contre chacun des deux points d'accrochage du pêne, en fonction de l'état de l'ouvrant.In the locks known from the prior art, the bolt comprises two attachment points and the pawl comprises a single attachment point intended to come into abutment against each of the two attachment points of the bolt, depending on the state of the opening.

En effet, lorsque le cliquet se trouve en butée contre un premier point d'accrochage du pêne, la gâche est emprisonnée et l'ouvrant est en position partiellement fermée, correspondant à une entre-ouverture de l'ouvrant, et lorsque le cliquet se trouve en butée contre un deuxième point d'accrochage du pêne, la gâche est emprisonnée et l'ouvrant est en position totalement fermée.Indeed, when the pawl is in abutment against a first attachment point of the bolt, the striker is trapped and the leaf is in the partially closed position, corresponding to a gap between the opening of the leaf, and when the pawl is abuts against a second attachment point of the bolt, the keeper is trapped and the opening is in the fully closed position.

Enfin, lorsque l'unique point d'accrochage du cliquet n'est plus en butée contre l'un quelconque des premiers et deuxièmes points d'accrochage du pêne, la gâche est libérée du pêne et la serrure est donc en position d'ouverture de l'ouvrant. DE 28 47 888 A1 divulgue une serrure, comportant une pêne avec deux points d'accrochage et un cliquet avec deux points d'accrochage pour venir en butée dans une position partiellement fermée et dans une position totalement fermée.Finally, when the single attachment point of the pawl is no longer in abutment against any one of the first and second attachment points of the bolt, the keeper is released from the bolt and the lock is therefore in the open position. of the opening. DE 28 47 888 A1 discloses a lock, comprising a bolt with two attachment points and a pawl with two attachment points to abut in a partially closed position and in a fully closed position.

Cependant, ce type de serrure présente des inconvénients.However, this type of lock has drawbacks.

En effet, le rayon du cliquet est le même pour venir en butée contre le premier et le deuxième point d'accrochage du pêne pour passer la serrure de la position totalement fermée à la position partiellement fermée.Indeed, the radius of the pawl is the same to come into abutment against the first and the second attachment point of the bolt to pass the lock from the fully closed position to the partially closed position.

En outre, les efforts d'ouverture de telles serrures sont de ce fait, plus élevés, en partie par le fait que le couple est généré par le cliquet sur un même point pour passer de la position totalement fermée à la position partiellement fermée.In addition, the opening forces of such locks are therefore higher, partly by the fact that the torque is generated by the pawl on the same point to pass from the fully closed position to the partially closed position.

De plus, le couple d'ouverture est imposé par les constructeurs automobiles, contraignant donc l'effort d'ouverture et à fortiori le rayon du cliquet.In addition, the opening torque is imposed by car manufacturers, therefore constraining the opening force and a fortiori the radius of the pawl.

De plus, les bruits engendrés par le passage de la serrure de sa position totalement fermée à sa position ouverte et passant par sa position partiellement fermée sont nuisibles, par exemple pour l'utilisateur du véhicule automobile.In addition, the noises generated by the passage of the lock from its fully closed position to its open position and passing through its partially closed position are harmful, for example for the user of the motor vehicle.

La présente invention vise à résoudre au moins un des inconvénients précités en fournissant une serrure pour véhicule automobile comprenant un pêne, ledit pêne étant configuré pour être mobile en rotation autour d'un axe de pêne, un cliquet, ledit cliquet étant configuré pour être mobile en rotation autour d'un axe de cliquet et une gâche, ladite serrure étant configurée pour adopter :

  • une position partiellement fermée dans laquelle le cliquet est en butée contre le pêne sur un premier point d'accrochage du cliquet, la gâche étant emprisonnée par le pêne,
  • une position totalement fermée dans laquelle le cliquet est en butée contre le pêne sur un deuxième point d'accrochage du cliquet, distinct du premier point d'accrochage du cliquet, la gâche étant emprisonnée par le pêne,
  • et une position ouverte dans laquelle la gâche est libérée du pêne.
The present invention aims to solve at least one of the aforementioned drawbacks by providing a lock for a motor vehicle comprising a bolt, said bolt being configured to be movable in rotation around a bolt axis, a pawl, said pawl being configured to be movable in rotation around a pawl axis and a keeper, said lock being configured to adopt:
  • a partially closed position in which the pawl is in abutment against the bolt on a first attachment point of the pawl, the striker being imprisoned by the bolt,
  • a completely closed position in which the pawl is in abutment against the bolt on a second attachment point of the pawl, distinct from the first attachment point of the pawl, the striker being imprisoned by the bolt,
  • and an open position in which the keeper is released from the bolt.

Le cliquet ayant deux points d'accrochage, cela permet de gérer deux rayons de cliquet différents pour chaque point d'accrochage.The ratchet having two attachment points, this makes it possible to manage two different ratchet radii for each attachment point.

De plus, le passage inter-cran de la position totalement fermée à la position partiellement fermée de la serrure est plus aisé. En effet, le deuxième point d'accrochage du cliquet est plus proche du deuxième point d'accrochage du pêne.In addition, the inter-notch passage from the fully closed position to the partially closed position of the lock is easier. Indeed, the second attachment point of the pawl is closer to the second attachment point of the bolt.

En outre, cela permet de réduire considérablement les bruits produits par la serrure lors du passage de la position totalement fermée à la position ouverte.In addition, this considerably reduces the noise produced by the lock when passing from the fully closed position to the open position.

En outre, la position du cliquet étant différente lorsque la serrure est en position totalement fermée ou en position partiellement fermée, par le fait que le cliquet de la présente invention comprend deux points d'accrochage distincts, le recouvrement du pêne sur le cliquet est donc variable lors des différentes positions de la serrure. Cette différence de recouvrement du pêne sur le cliquet assure une meilleure tenue mécanique et réduit ainsi le risque de déformation et/ou de rognage des pièces composant la serrure, par exemple lors d'un accident du véhicule automobile.In addition, the position of the pawl being different when the lock is in the fully closed position or in the partially closed position, in that the pawl of the present invention comprises two distinct attachment points, the covering of the bolt on the pawl is therefore variable during the different positions of the lock. This difference in covering of the bolt on the pawl provides better mechanical strength and thus reduces the risk of deformation and/or trimming of the parts making up the lock, for example during an accident of the motor vehicle.

Il faut entendre par recouvrement, une longueur de recouvrement du pêne sur le cliquet, c'est-à-dire la surface et l'épaisseur du pêne en contact avec le cliquet.By overlap is meant a length of overlap of the bolt on the pawl, that is to say the surface and the thickness of the bolt in contact with the pawl.

Enfin, la présente invention apporte également une réduction d'effort pour les serrures à ouverture électrique.Finally, the present invention also provides a reduction in effort for electrically opened locks.

Selon l'invention, le pêne comprend un premier point d'accrochage du pêne configuré pour venir en butée contre le premier point d'accrochage du cliquet dans la position partiellement fermée, et le pêne comprend un deuxième point d'accrochage du pêne configuré pour venir en butée contre le deuxième point d'accrochage du cliquet dans la position totalement fermée.According to the invention, the bolt comprises a first point of attachment of the bolt configured to come into abutment against the first point of attachment of the pawl in the partially closed position, and the bolt includes a second bolt hooking point configured to abut the second latch hooking point in the fully closed position.

Selon l'invention, le premier point d'accrochage du cliquet est plus éloigné de l'axe de cliquet, que le deuxième point d'accrochage du cliquet. Notamment, la distance du deuxième point d'accrochage du cliquet et l'axe de cliquet est comprise entre 30 % et 90%, de préférence 50% à 80% de la distance entre le premier point d'accrochage du cliquet et l'axe de cliquet.According to the invention, the first attachment point of the pawl is farther from the axis of the pawl than the second attachment point of the pawl. In particular, the distance from the second attachment point of the pawl and the axis of the pawl is between 30% and 90%, preferably 50% to 80% of the distance between the first attachment point of the pawl and the axis ratchet.

Notamment encore, le pêne comprend une surface d'appui continue configurée pour maintenir le cliquet dans la position ouverte de la serrure.In particular again, the bolt comprises a continuous bearing surface configured to hold the pawl in the open position of the lock.

Selon une possibilité, la surface d'appui du pêne forme une rampe.According to one possibility, the bearing surface of the bolt forms a ramp.

Selon une autre possibilité, le premier point d'accrochage du cliquet forme une surface avec une première extrémité libre, le deuxième point d'accrochage du cliquet forme une deuxième surface avec une deuxième extrémité libre, et dans lequel le rapport entre :

  1. a. le rayon d'un cercle centré sur l'axe de pêne et passant par la première extrémité libre, et
  2. b. le rayon d'un cercle formé par l'axe de pêne et passant par la deuxième extrémité libre, est compris entre 0.1 mm et 1 mm.
According to another possibility, the first attachment point of the pawl forms a surface with a first free end, the second attachment point of the pawl forms a second surface with a second free end, and in which the ratio between:
  1. has. the radius of a circle centered on the bolt axis and passing through the first free end, and
  2. b. the radius of a circle formed by the bolt axis and passing through the second free end is between 0.1 mm and 1 mm.

Selon une caractéristique, les points d'accrochage sont formés par des dents.According to one characteristic, the attachment points are formed by teeth.

Selon une autre caractéristique, le premier point d'accrochage du pêne et le deuxième point d'accrochage du pêne sont situés de part et d'autre d'un logement du pêne, ledit logement recevant la gâche.According to another characteristic, the first attachment point of the bolt and the second attachment point of the bolt are located on either side of a housing of the bolt, said housing receiving the keeper.

Dans un mode de réalisation, le premier point d'accrochage du pêne et le deuxième point d'accrochage du pêne sont situés sur un même côté par rapport à un logement du pêne, ledit logement recevant la gâche.In one embodiment, the first attachment point of the bolt and the second attachment point of the bolt are located on the same side with respect to a housing of the bolt, said housing receiving the keeper.

Dans un autre mode de réalisation, la position d'ouverture est atteinte selon un premier sens de rotation selon l'axe de pêne et la position de fermeture est atteinte dans un deuxième sens de rotation selon l'axe de pêne, la surface d'appui étant située sur une face disposée dans le deuxième sens de rotation selon l'axe de pêne par rapport à une surface intérieure de premier point d'accrochage du pêne du premier point d'accrochage du pêne.In another embodiment, the open position is reached according to a first direction of rotation along the bolt axis and the closed position is reached in a second direction of rotation along the bolt axis, the surface of support being located on a face disposed in the second direction of rotation along the axis of the bolt with respect to an inner surface of the first attachment point of the bolt of the first attachment point of the bolt.

Dans un autre mode de réalisation encore, le déplacement du cliquet est réalisé par un actionneur électrique.In yet another embodiment, the movement of the pawl is carried out by an electric actuator.

L'invention concerne également un véhicule automobile comprenant une serrure suivant l'invention.The invention also relates to a motor vehicle comprising a lock according to the invention.

L'invention sera décrite plus en détails à travers les différentes figures présentées ci-dessous, ce qui facilitera sa compréhension.

  • [Fig. 1A] représente une serrure pour ouvrant de véhicule automobile dans une position totalement fermée, selon un premier mode de réalisation de l'invention.
  • [Fig. 1B] représente la serrure pour ouvrant de véhicule automobile dans une position partiellement fermée, selon le premier mode de réalisation de l'invention.
  • [Fig. 1C] représente la serrure pour ouvrant de véhicule automobile dans une position ouverte, selon le premier mode de réalisation de l'invention.
  • [Fig. 2A] représente une serrure pour ouvrant de véhicule automobile dans une position totalement fermée, selon un deuxième mode de réalisation de l'invention.
  • [Fig. 2B] représente la serrure pour ouvrant de véhicule automobile dans une position partiellement fermée, selon le deuxième mode de réalisation de l'invention.
  • [Fig. 2C] représente la serrure pour ouvrant de véhicule automobile dans une position ouverte, selon le deuxième mode de réalisation de l'invention.
  • [Fig. 3] représente la serrure pour ouvrant de véhicule automobile dans une position ouverte, selon le premier mode de réalisation de l'invention.
The invention will be described in more detail through the various figures presented below, which will facilitate its understanding.
  • [ Fig. 1A ] shows a lock for a motor vehicle door in a completely closed position, according to a first embodiment of the invention.
  • [ Fig. 1B ] shows the lock for a motor vehicle door in a partially closed position, according to the first embodiment of the invention.
  • [ Fig. 1 C ] shows the lock for a motor vehicle door in an open position, according to the first embodiment of the invention.
  • [ Fig. 2A ] shows a lock for a motor vehicle door in a completely closed position, according to a second embodiment of the invention.
  • [ Fig. 2B ] shows the lock for a motor vehicle door in a partially closed position, according to the second embodiment of the invention.
  • [ Fig. 2C ] shows the lock for a motor vehicle door in an open position, according to the second embodiment of the invention.
  • [ Fig. 3 ] shows the lock for a motor vehicle door in an open position, according to the first embodiment of the invention.

La figure 1A montre une serrure 1 pour ouvrant de véhicule automobile dans une position totalement fermée, selon le premier mode de réalisation de l'invention.The Figure 1A shows a lock 1 for a motor vehicle door in a completely closed position, according to the first embodiment of the invention.

La serrure 1 comprend un pêne 2 configuré pour tourner autour d'un axe de rotation de pêne A, un cliquet 3 configuré pour tourner autour d'un axe de rotation de cliquet B ainsi qu'une gâche (non représentée).The lock 1 comprises a bolt 2 configured to rotate around a bolt rotation axis A, a latch 3 configured to rotate around a latch rotation axis B and a striker plate (not shown).

Le pêne 2 comprend deux points d'accrochage du pêne C et D et le cliquet comprend deux points d'accrochage du cliquet E et F.The bolt 2 has two bolt attachment points C and D and the pawl has two pawl attachment points E and F.

Dans ce premier mode de réalisation de l'invention, les points d'accrochage du pêne C et D sont situés de part et d'autre d'un logement 4 du pêne 2. Ce logement 4, correspondant à une saignée du pêne 2, est configuré pour recevoir la gâche de la serrure 1.In this first embodiment of the invention, the attachment points of the bolt C and D are located on either side of a housing 4 of the bolt 2. This housing 4, corresponding to a groove in the bolt 2, is configured to receive the strike plate of lock 1.

Le premier point d'accrochage du pêne C présente une largeur supérieure au deuxième point d'accrochage du pêne D.The first attachment point of the bolt C has a greater width than the second attachment point of the bolt D.

En l'occurrence, le premier point d'accrochage du pêne C est formé par une surface intérieure de premier point d'accrochage du pêne 5a s'étendant sensiblement vers l'axe de rotation de pêne A, formant une partie du logement 4 du pêne 2 et une surface extérieure de premier point d'accrochage du pêne 5b s'étendant sensiblement parallèlement à la surface intérieure de premier point d'accrochage du pêne 5a, la surface intérieure de premier point d'accrochage du pêne 5a et la surface extérieure de premier point d'accrochage du pêne 5b étant reliées par une surface d'appui 6, formant une rampe.In this case, the first point of attachment of the bolt C is formed by an inner surface of the first point of attachment of the bolt 5a extending substantially towards the axis of rotation of the bolt A, forming a part of the housing 4 of the bolt 2 and an outer surface of the first attachment point of the bolt 5b extending substantially parallel to the inner surface of the first attachment point of the bolt 5a, the inner surface of the first attachment point of the bolt 5a and the outer surface of the first attachment point of the bolt 5b being connected by a support surface 6, forming a ramp.

Le deuxième point d'accrochage du cliquet F est situé plus proche de l'axe de rotation de cliquet B que le premier point d'accrochage du cliquet E.The second pawl attachment point F is located closer to the pawl rotation axis B than the first pawl attachment point E.

Plus précisément, la distance du deuxième point d'accrochage du cliquet F et l'axe de cliquet B est comprise entre 30 % et 90%, de préférence 50% à 80% de la distance entre le premier point d'accrochage du cliquet E et l'axe de cliquet B.More precisely, the distance of the second attachment point of the pawl F and the axis of the pawl B is between 30% and 90%, preferably 50% to 80% of the distance between the first attachment point of the pawl E and pawl pin B.

De plus, le cliquet 3 présente une forme sensiblement de F. En effet, chaque point d'accrochage du cliquet E et F s'étend radialement et perpendiculairement par rapport à l'axe d'extension du cliquet 3. Le deuxième point d'accrochage du cliquet F est plus court que le premier point d'accrochage du cliquet E.In addition, the pawl 3 has a substantially F shape. Indeed, each attachment point of the pawl E and F extends radially and perpendicularly with respect to the axis of extension of the pawl 3. The second point of attachment pawl attachment point F is shorter than the first pawl attachment point E.

Chaque point d'accrochage du cliquet E et F présente une surface intérieure de premier point d'accrochage du cliquet 7a, respectivement une surface intérieure de deuxième point d'accrochage du cliquet 7b, tournée vers l'axe de rotation de cliquet B et une surface extérieure de premier point d'accrochage du cliquet 8a, respectivement une surface extérieure de deuxième point d'accrochage du cliquet 8b, tournée vers l'opposé de l'axe de rotation de cliquet B.Each pawl attachment point E and F has an inner surface of the first attachment point of the pawl 7a, respectively an inner surface of the second attachment point of the pawl 7b, facing the axis of rotation of the pawl B and a outer surface of the first hooking point of the pawl 8a, respectively an outer surface of the second hooking point of the pawl 8b, facing away from the axis of rotation of the pawl B.

Dans la position totalement fermée de la serrure 1, le deuxième point d'accrochage du cliquet F est en butée contre le deuxième point d'accrochage du pêne D, de manière à ce que la gâche soit complètement emprisonnée dans le logement 4 du pêne 2.In the completely closed position of the lock 1, the second attachment point of the pawl F is in abutment against the second attachment point of the bolt D, so that the keeper is completely imprisoned in the housing 4 of the bolt 2 .

Plus précisément, le deuxième point d'accrochage du pêne D est disposé entre le premier point d'accrochage du cliquet E et le deuxième point d'accrochage du cliquet F.More precisely, the second attachment point of the bolt D is arranged between the first attachment point of the pawl E and the second attachment point of the pawl F.

Encore plus précisément, le deuxième point d'accrochage du pêne D est disposé contre la surface extérieure 8b du deuxième point d'accrochage du cliquet F et la surface intérieure 7a du premier point d'accrochage du cliquet E.Even more precisely, the second attachment point of the bolt D is arranged against the outer surface 8b of the second attachment point of the pawl F and the inner surface 7a of the first attachment point of the pawl E.

L'agencement de chaque point d'accrochage du pêne C et D et de chaque point d'accrochage du cliquet E et F prend la forme d'une dent.The arrangement of each bolt attachment point C and D and each pawl attachment point E and F takes the form of a tooth.

La figure 1B montre la serrure 1 dans une position partiellement fermée, selon le premier mode de réalisation de l'invention.The figure 1B shows the lock 1 in a partially closed position, according to the first embodiment of the invention.

En position partiellement fermée, le premier point d'accrochage du cliquet E est en butée contre le premier point d'accrochage du pêne C, de manière à ce que la gâche soit toujours emprisonnée dans le logement 4 du pêne 2.In the partially closed position, the first attachment point of the pawl E is in abutment against the first attachment point of the bolt C, so that the striker plate is still trapped in the housing 4 of the bolt 2.

Plus précisément, c'est la surface extérieure 8a du premier point d'accrochage du cliquet E qui est en butée contre le premier point d'accrochage du pêne C.More precisely, it is the outer surface 8a of the first attachment point of the pawl E which is in abutment against the first attachment point of the bolt C.

Encore plus précisément, c'est la surface extérieure 8a du premier point d'accrochage du cliquet E qui est en butée contre la surface intérieure de premier point d'accrochage du pêne 5a.Even more precisely, it is the outer surface 8a of the first attachment point of the pawl E which is in abutment against the inner surface of the first attachment point of the bolt 5a.

Le deuxième point d'accrochage du cliquet F et le deuxième point d'accrochage du pêne D sont libres.The second latch attachment point F and the second bolt attachment point D are free.

La figure 1C montre la serrure 1 dans une position ouverte, selon le premier mode de réalisation de l'invention.The figure 1C shows the lock 1 in an open position, according to the first embodiment of the invention.

Dans la position ouverte de la serrure 1, chaque point d'accrochage du cliquet E et F sont en appui contre le premier point d'accrochage du pêne C.In the open position of the lock 1, each attachment point of the pawl E and F rest against the first attachment point of the bolt C.

En effet, une surface d'appui 6, formant une rampe, est disposée entre la surface intérieure de premier point d'accrochage du pêne 5a et la surface extérieure de premier point d'accrochage du pêne 5b.Indeed, a support surface 6, forming a ramp, is arranged between the inner surface of the first attachment point of the bolt 5a and the outer surface of the first attachment point of the bolt 5b.

L'extrémité libre du premier point d'accrochage du cliquet E et l'extrémité libre du deuxième point d'accrochage du cliquet E sont en appui sur cette surface d'appui 6 formée par le premier point d'accrochage du pêne C, en l'occurrence la rampe.The free end of the first attachment point of the pawl E and the free end of the second attachment point of the pawl E rest on this bearing surface 6 formed by the first attachment point of the bolt C, in the occurrence the ramp.

Dans cette position de la serrure 1, la gâche est libérée du logement 4 du pêne 2.In this position of the lock 1, the keeper is released from the housing 4 of the bolt 2.

La figure 2A montre une serrure 100 dans une position totalement fermée, selon un deuxième mode de réalisation de l'invention.The figure 2A shows a lock 100 in a fully closed position, according to a second embodiment of the invention.

A la différence avec le premier mode de réalisation de l'invention, illustré en référence aux figures 1A à 1C, le premier point d'accrochage du pêne C' et le deuxième point d'accrochage du pêne D' sont situés sur un même côté par rapport au logement 4 du pêne 200.Unlike the first embodiment of the invention, illustrated with reference to figures 1A to 1C , the first attachment point of the bolt C' and the second attachment point of the bolt D' are located on the same side with respect to the housing 4 of the bolt 200.

En effet, la surface d'appui 6, formant la rampe, présentée dans le premier mode de réalisation, comprend, dans ce deuxième mode de réalisation, un évidement 9 de manière à former le premier point d'accrochage du pêne C' et le deuxième point d'accrochage du pêne D' de part et d'autre de cet évidement 9.Indeed, the support surface 6, forming the ramp, presented in the first embodiment, comprises, in this second embodiment, a recess 9 so as to form the first attachment point of the bolt C 'and the second attachment point of the bolt D' on either side of this recess 9.

Dans cette position totalement fermée de la serrure 100, le deuxième point d'accrochage du cliquet F est en butée contre le deuxième point d'accrochage du pêne D'. La gâche est donc emprisonnée dans le logement 4 du pêne 200.In this completely closed position of the lock 100, the second attachment point of the pawl F is in abutment against the second attachment point of the bolt D′. The keeper is therefore trapped in housing 4 of the bolt 200.

La figure 2B montre la serrure 100 dans une position partiellement fermée, selon le deuxième mode de réalisation de l'invention.The figure 2B shows the lock 100 in a partially closed position, according to the second embodiment of the invention.

Dans cette position partiellement fermée de la serrure 100, le premier point d'accrochage du cliquet E est en butée contre le premier point d'accrochage du pêne C'.In this partially closed position of the lock 100, the first attachment point of the pawl E is in abutment against the first attachment point of the bolt C′.

Plus précisément, c'est la surface extérieure de premier point d'accrochage du cliquet 7a qui est en contact avec une surface intérieure de point d'accrochage du pêne 5a', la surface intérieure de point d'accrochage du pêne 5a' débouchant sur l'évidement 9 s'étendant sensiblement vers l'axe de rotation de pêne A.More specifically, it is the outer surface of the first hooking point of the pawl 7a which is in contact with an inner surface of the hooking point of the bolt 5a', the inner surface of the bolt attachment point 5a' leading to the recess 9 extending substantially towards the axis of rotation of the bolt A.

Dans cette position partiellement fermée, la gâche est toujours emprisonnée dans le logement 4 du pêne 200.In this partially closed position, the keeper is still trapped in the housing 4 of the bolt 200.

Le deuxième point d'accrochage du cliquet F et le deuxième point d'accrochage du pêne D' sont libres.The second attachment point of the pawl F and the second attachment point of the bolt D' are free.

La figure 2C montre la serrure 100 en position ouverte, selon le deuxième mode de réalisation de l'invention.The Fig. 2C shows the lock 100 in the open position, according to the second embodiment of the invention.

Dans cette position ouverte de la serrure 100, le premier point d'accrochage du cliquet E est en appui contre le premier point d'accrochage du pêne C'.In this open position of the lock 100, the first attachment point of the pawl E bears against the first attachment point of the bolt C′.

Plus précisément, c'est l'extrémité libre du premier point d'accrochage du cliquet E qui est en butée contre une surface d'appui 6, formant une rampe, constituée entre la surface intérieure de point d'accrochage du pêne 5a'et une surface extérieure de premier point d'accrochage du pêne 5b' s'étendant sensiblement parallèlement à la surface intérieure de premier point d'accrochage du pêne 5a', la surface intérieure de premier point d'accrochage du pêne 5a' et la surface extérieure de premier point d'accrochage du pêne 5b' étant reliées par la rampe.More specifically, it is the free end of the first hooking point of the pawl E which abuts against a bearing surface 6, forming a ramp, formed between the inner surface of the hooking point of the bolt 5a' and a bolt first hooking point outer surface 5b' extending substantially parallel to the bolt first hooking point inner surface 5a', the bolt first hooking point inner surface 5a' and the outer surface of the first attachment point of the bolt 5b' being connected by the ramp.

Dans cette position ouverte de la serrure 100, la gâche est libérée du pêne 200.In this open position of the lock 100, the keeper is released from the bolt 200.

La figure 3 montre la serrure 1 dans une position ouverte, selon le premier mode de réalisation de l'invention.The picture 3 shows the lock 1 in an open position, according to the first embodiment of the invention.

Un premier cercle de centre d'axe de pêne A, passant par la première extrémité libre du deuxième point d'accrochage du cliquet F est illustré ainsi qu'un deuxième cercle de centre d'axe de pêne A, passant par la première extrémité libre du premier point d'accrochage du cliquet E.A first bolt center circle A, passing through the first free end of the second pawl attachment point F is shown as well as a second bolt center circle A, passing through the first free end of the first hooking point of the pawl E.

Ces deux cercles représentent donc l'écart de contact entre le premier point d'accrochage du cliquet E et le deuxième point d'accrochage du cliquet F, dans la position d'ouverture de la serrure 1.These two circles therefore represent the contact gap between the first attachment point of the pawl E and the second attachment point of the pawl F, in the open position of the lock 1.

Dans cette position, le rapport d entre le rayon du cercle centré sur l'axe de pêne A et passant par la première extrémité libre, et le rayon du cercle formé par l'axe de pêne A et passant par la deuxième extrémité libre, est compris entre 0,1mm et 1mm.In this position, the ratio d between the radius of the circle centered on the bolt axis A and passing through the first free end, and the radius of the circle formed by the bolt axis A and passing through the second free end, is between 0.1mm and 1mm.

Bien entendu, ce rapport est également valable pour le deuxième mode de réalisation de l'invention, dans la position ouverte de la serrure 100.Of course, this report is also valid for the second embodiment of the invention, in the open position of the lock 100.

Dans les paragraphes suivants, le fonctionnement de la présente invention est expliqué. Lorsqu'une personne veut ouvrir la porte de son véhicule automobile, par exemple, celui-ci tire sur une poignée disposée sur un ouvrant de véhicule. Cette poignée est reliée à la serrure 1, 100, par un câble de type Bowden par exemple.In the following paragraphs, the operation of the present invention is explained. When a person wants to open the door of his motor vehicle, for example, the latter pulls on a handle arranged on a vehicle opening. This handle is connected to the lock 1, 100, by a Bowden type cable for example.

Précédent le tirage de la poignée, la serrure 1, 100 est en position totalement fermée, la gâche est donc emprisonnée dans le logement 4 du pêne 2, 200. En l'occurrence, le deuxième point d'accrochage du cliquet F est en butée contre le deuxième point d'accrochage du pêne D, D'.Before pulling the handle, the lock 1, 100 is in the fully closed position, the striker is therefore trapped in the housing 4 of the bolt 2, 200. In this case, the second attachment point of the pawl F is in abutment against the second attachment point of the bolt D, D'.

Lorsque la personne tire sur la poignée, celle-ci tire sur le câble de type Bowden, entraînant en rotation autour de l'axe de pêne A, selon un sens horaire, le pêne 2, 200, de manière à ce que le deuxième point d'accrochage du pêne D, D' soit libéré du deuxième point d'accrochage du cliquet F et que le premier point d'accrochage du cliquet E soit en butée contre le premier point d'accrochage du pêne C, C', correspondant à la position partiellement fermée de la serrure 1, 100 puis de manière à ce que le premier point d'accrochage du pêne C, C' soit libéré du premier point d'accrochage du cliquet E et que le cliquet 2 soit en appui contre la surface d'appui 6 formant la rampe du pêne 2, 200, correspondant à la position ouverte de la serrure 1, 100, la gâche étant libérée du logement 4 du pêne 2, 200.When the person pulls on the handle, the latter pulls on the Bowden-type cable, causing the bolt 2, 200 to rotate around the axis of the bolt A, clockwise, so that the second point hooking point of the bolt D, D' is released from the second hooking point of the pawl F and that the first hooking point of the pawl E is in abutment against the first hooking point of the bolt C, C', corresponding to the partially closed position of the lock 1, 100 then so that the first attachment point of the bolt C, C' is released from the first attachment point of the pawl E and the pawl 2 bears against the surface support 6 forming the ramp of the bolt 2, 200, corresponding to the open position of the lock 1, 100, the striker being released from the housing 4 of the bolt 2, 200.

Lorsque la personne veut fermer la porte du véhicule, le chemin inverse est effectué par la serrure 1, 100.When the person wants to close the vehicle door, the reverse path is performed by the lock 1, 100.

Dans chacun des modes de réalisation décrits, le déplacement du cliquet 3 peut être réalisé par un actionneur électrique, de sorte que la poignée n'est plus reliée à la serrure 1, 100 par un câble de type Bowden, par exemple.In each of the embodiments described, the displacement of the pawl 3 can be achieved by an electric actuator, so that the handle is no longer connected to the lock 1, 100 by a Bowden type cable, for example.

Claims (14)

  1. A latch (1, 100) for a motor vehicle comprising a bolt (2, 200), said bolt (2, 200) being configured to be rotatably movable about a bolt axis (A), a pawl (3), said pawl (3) being configured to be rotatably movable about a pawl axis (B) and a striker, said latch (1, 100) being configured to adopt:
    - a partially closed position in which the pawl (3) abuts against the bolt (2, 200) on a first pawl attachment point (E), the striker being captured by the bolt (2, 200),
    - a fully closed position in which the pawl (3) abuts against the bolt (2, 200) on a second pawl attachment point (F), distinct from the first pawl attachment point (E), the striker being captured by the bolt (2, 200),
    - and an open position in which the striker is released from the bolt (2, 200),
    wherein the bolt (2, 200) comprises a first bolt attachment point (C, C') configured to abut the first pawl attachment point (E) in the partially closed position, and the bolt (2, 200) comprises a second bolt attachment point (D, D') configured to abut the second pawl attachment point (F) in the fully closed position,
    characterized in that the first pawl attachment point (E) is farther from the pawl axis (B), than the second pawl attachment point (F).
  2. The latch (1, 100) according to claim 1, wherein the distance between the second pawl attachment point (F) and the pawl axis (B) is between 30% and 90%, preferably 50% to 80 % of the distance between the first pawl attachment point (E) and the pawl axis (B).
  3. The latch (1, 100) according to any one of the preceding claims, wherein the bolt (2, 200) comprises a continuous bearing surface configured to hold the pawl (3) in the open position of the latch (1, 100).
  4. The latch (1, 100) according to claim 3, wherein the bearing surface (6) of the bolt (2, 200) forms a ramp.
  5. The latch (1, 100) according to any one of claims 1 to 4, wherein the first pawl attachment point (E) forms a surface with a first free end, the second pawl attachment point (F) forms a second surface with a second free end, and in which the ratio (d) between:
    a. the radius of a circle centered on the bolt axis (A) and passing through the first free end, and
    b. the radius of a circle formed by the bolt axis (A) and passing through the second free end, is between 0.1 mm and 1 mm.
  6. The latch (1, 100) according to any one of the preceding claims, wherein the attachment points (C, C', D, D', E, F) are formed by teeth.
  7. The latch (1) according to any one of the preceding claims, wherein the first bolt attachment point (C) and the second bolt attachment point (D) are located on either side of a housing (4) of the bolt (2, 200), said housing (4) receiving the striker.
  8. The latch (100) according to any one of claims 1 to 6, wherein the first bolt attachment point (C') and the second bolt attachment point (D') are located on the same side with respect to a housing (4) of the bolt (200), said housing (4) receiving the striker.
  9. The latch (1, 100) according to any one of claims 3 to 8, wherein the open position is reached in a first direction of rotation along the bolt axis (A) and the closed position is reached in a second direction of rotation along the bolt axis (A), the bearing surface (6) being located on a face disposed in the second direction of rotation along the bolt axis (A) with respect to a first bolt attachment point inner surface 5a of the first bolt attachment point (C, C').
  10. The latch (1, 100) according to any one of the preceding claims, wherein the movement of the pawl (3) is achieved by an electric actuator.
  11. The latch according to any one of the preceding claims, wherein, in the open position of the latch, each pawl attachment point (E, F) bears against the first bolt attachment point (C).
  12. The latch according to any one of the preceding claims, wherein the first bolt attachment point (C) has a width greater than the second bolt attachment point (D).
  13. The latch according to any one of the preceding claims, wherein the pawl is substantially F-shaped, each pawl attachment point (E, F) extending radially and perpendicularly with respect to the axis of extension of the pawl (3), the second pawl attachment point (F) being shorter than the first pawl attachment point (E), each pawl attachment point (E, F) having a first pawl attachment point inner surface (7a), respectively a second pawl attachment point inner surface (7b), facing the pawl axis of rotation (B) and a first pawl attachment point outer surface (8a), respectively a second pawl attachment point outer surface (8b), facing away from the pawl axis of rotation (B).
  14. A motor vehicle comprising a latch (1, 100) according to any one of claims 1 to 11.
EP20203179.5A 2019-10-29 2020-10-21 Lock for door of a motor vehicle Active EP3816378B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1912157A FR3102498B1 (en) 2019-10-29 2019-10-29 Motor vehicle door lock

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EP3816378A1 EP3816378A1 (en) 2021-05-05
EP3816378B1 true EP3816378B1 (en) 2023-01-04

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US (1) US20210123271A1 (en)
EP (1) EP3816378B1 (en)
JP (1) JP2022168866A (en)
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FR (1) FR3102498B1 (en)

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JP2022168866A (en) 2022-11-09
FR3102498A1 (en) 2021-04-30
FR3102498B1 (en) 2021-12-10
EP3816378A1 (en) 2021-05-05
US20210123271A1 (en) 2021-04-29

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