EP2956607B1 - Motor vehicle lock - Google Patents

Motor vehicle lock Download PDF

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Publication number
EP2956607B1
EP2956607B1 EP14711806.1A EP14711806A EP2956607B1 EP 2956607 B1 EP2956607 B1 EP 2956607B1 EP 14711806 A EP14711806 A EP 14711806A EP 2956607 B1 EP2956607 B1 EP 2956607B1
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EP
European Patent Office
Prior art keywords
bolt
striker
rib
latch
front surface
Prior art date
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Application number
EP14711806.1A
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German (de)
French (fr)
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EP2956607A2 (en
Inventor
Johann Robert
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 of EP2956607A2 publication Critical patent/EP2956607A2/en
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Classifications

    • 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
    • E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
    • 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
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/02—Lock casings

Definitions

  • the invention relates to a lock of a motor vehicle and can be applied to an opening lock, such as a tailgate or a side door, or a motor vehicle seat.
  • such a lock comprises a plate, generally metal, by which the lock is applied against the edge of the opening or seat, and fixed thereto and a housing, generally made of plastic, enclosing the whole mechanism of the lock.
  • the lock comprises a rotary bolt intended to cooperate with a keeper mounted projecting on the fixed frame.
  • the bolt has a notch in which engages the striker when closing the opening or the positioning of the seat.
  • the lock also contains a rotating ratchet for holding the bolt in the closed position in which the latter holds the striker. The striker thus slides on a lateral surface of this notch of the bolt on a so-called closing path and pushes the bolt in rotation, when closing the lock.
  • a crossbar is disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and, by means of collars and screws, it causes the application of the plate against the edge of the movable wing, this cross then forming an obstacle opposing an offset of the mean plane of the bolt relative to the mean plane of the pawl.
  • a buffer or chock-keeper made of flexible material, to absorb all frequencies in vibration during the movement of the vehicle, or to dampen the closing limit switch.
  • This buffer is disposed in a housing housing, is fixed on the crossbar and, the lock of the opening or the seat being in the closed position, the striker is pressed against the wedge striker, blocked by the bolt, with compressive deformation of the wedge striker.
  • the housing there is generally on the housing one or ribs molded on the housing and directed substantially perpendicular to the mean plane of the bolt. In the event of vibrations during the movement of the vehicle, the bolt comes into contact with this or these ribs and is thus held in place in its mid-plane.
  • a known thickness of the wedge-striker, in the direction of its compression parallel to the mean plane of the bolt and corresponding to the distance between its attachment to the cross member and the contact of the striker in the closed position, is of the order of 9.5 mm.
  • a thickness causes the need for too much pressure when closing the sash or seat.
  • the bolt is generally covered with an overmolding material designed to reduce vibration noise, when the vehicle rolls, as well as during shocks on closing.
  • an overmolding material designed to reduce vibration noise, when the vehicle rolls, as well as during shocks on closing.
  • this material is often reinforced and this results in a reduction of its damping effect against noise.
  • the invention solves these problems by proposing a solution reducing the contacts and shocks of the bolt with the metal plate, and thus reducing the noise generated by a movement of the bolt when the lock is being closed and in the closed position.
  • the invention provides a motor vehicle lock comprising a plate and a housing enclosing the entire mechanism of the lock comprising a rotary bolt for cooperating with a strike projecting on a fixed frame and a rotary ratchet for to retain the striker in the closed position, said striker sliding on a lateral surface of the bolt on a so-called closing trajectory and pushing the bolt, when closing the lock, characterized in that said lateral surface is inclined with respect to the front surface of the bolt opposite the front surface facing said plate, on at least a first portion of said closing path, said striker coming into contact with the edge of said front surface, when closing the lock, said lock comprising a wedge-keeper made of flexible material disposed in a housing of the housing, said striker being pressed between this wedge-keeper and the êne in the closed position of the lock, said housing also containing at least one rib directed substantially perpendicular to the mean plane of the bolt, characterized said keeper comprises at least one extension housed close to said rib and of thickness exceeding
  • the bolt comes to abut against the housing, and in particular against the ribs or ribs of the latter.
  • said lateral surface is inclined with respect to the front surface of the bolt opposite said platen by an angle of less than 90 degrees and greater than or equal to 85 degrees, and advantageously this angle is between 85 and 88 degrees.
  • said wedge-keeper is fixed on a crosspiece disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and forming an obstacle to an offset of the mean plane of the bolt relative to the mean plane of the pawl.
  • the thickness of the extension extends approximately 0.4 mm from the height of the rib.
  • a motor vehicle lock intended for an opening or a seat comprises a not shown plate and a housing 1 enclosing the whole mechanism of the lock comprising a rotary bolt 2 intended to cooperate with a striker 3 mounted on a fixed frame a rotary pawl 4 for retaining the striker 3 in the closed position and a striker wedge 5 made of flexible material disposed in a housing of the housing, the striker 3 being pressed between this striker 5 and the bolt 2 in the closed position of the lock.
  • the striker 3 thus slides on a lateral surface of this notch of the bolt 2 on a so-called closing path AA 'of the corresponding face of the bolt 2, the striker being deformed by compression.
  • the chock-keeper is nitrile-based rubber, preferably with a hardness greater than 50 Shore A, preferably of the order of 70 Shore A.
  • the lock also comprises a crosspiece 6 disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and forming an obstacle to an offset of the mean plane of the bolt relative to the mean plane of the pawl, as described in document patent EP 1 039 079 , and the wedge-keeper 5 is fixed on this crosspiece 6 as shown on the figure 2 and 3 .
  • the chock-keeper comprises an orifice 5A in which is introduced a branch 6A of the crossbar 6.
  • This attachment 5A, 6A is the fixing of the wedge-keeper which may optionally be performed differently depending on the conformation of the lock and the present of a cross or not.
  • the housing 1 comprises a rib 1A directed substantially perpendicularly to the mean plane of the bolt 2. According to the prior art, this rib is intended to hold the bolt 2 in position in the housing. Several ribs of this type can be provided.
  • such a known rib is reduced in height and the chock-keeper 5 has an extension 5B housed near the rib 1A and thicker than the height of this groove, so that a displacement of the bolt 2 perpendicularly to its mean plane causes a compression of this extension 5A, without contact with the rib 1A, as visible on the figure 5 .
  • the thickness of the extension 5A is 0.4 mm higher than the height of the rib 1A. More generally, the thickness of the extension 5B exceeds the height of the rib 1A towards the bolt 2, about 0.4 mm.
  • the rib 1A is shortened by about 0.6 mm and has an end portion 1B formed inclined at its edge as well forming a triangular rib portion relative to its relative positioning with the rib 1A.
  • the extension 5B therefore comprises an outer edge 5C also inclined corresponding to this end section 1B.
  • this end portion 1B of the rib 1A can also be formed inclined at its edge by forming a triangular rib section and not relative to its relative positioning with the rib 1A, as visible on the Figures 4, 5 and 6 where its plane is perpendicular to that of the rib 1A.
  • the extension 5B then has an external edge 5C right corresponding to this end section 1B.
  • this end portion 1B of the rib 1A may not be inclined neither at its edge nor relative to its position. relative with the rib 1A, and be a rib portion perpendicular to the rib 1A and rectangular.
  • the extension 5B then also comprises a right outer edge 5C corresponding to this end section 1B.
  • a thin rib 1C may remain above the extension 5A of the striker block 5, as visible on the Figures 6 and 7 , the thickness of the extension 5B being modified accordingly.
  • the thickness e of the lock wedge 5, in the direction of its compression parallel to the mean plane of the bolt 2 and corresponding to the distance between its fixing on the crosspiece 6 and the contact of the keeper 3 in the closed position is preferably 1 order of 8.7 mm.
  • the chock-keeper 5 may include several extensions such as extension 5B described above, according to the arrangement of ribs 1A disposed on the housing. In particular, it can have two extensions symmetrical with respect to its central plane P.
  • the lateral surface 2B of the bolt against which the latch 2 slides during closing of the lock is inclined with respect to the front surface 2A of the bolt 2 opposite the front surface 2C turned towards the plate 7, on at least a first portion of the closing path A-A ', the striker 2 coming into contact with the edge of this front surface 2A, when closing the lock.
  • this lateral surface 2B is inclined with respect to the front surface 2A of the bolt opposite the front surface 2C turned towards the plate by an angle ⁇ less than 90 degrees and greater than or equal to 85 degrees, and advantageously this angle ⁇ is between 85 and 88 degrees.
  • This angle ⁇ depends more precisely on the specific dimensions of the various elements of the lock.
  • the bolt 2 abuts against the housing 1, and in particular against the rib 1A.
  • the housing being made of plastic material, the noise caused is much less than that of shocks on the metal plate 7 and a specific noise reduction geometry can be molded therein.

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  • Lock And Its Accessories (AREA)

Description

L'invention concerne une serrure de véhicule automobile et peut s'appliquer à une serrure d'ouvrant, tel qu'un hayon ou une porte latérale, ou de siège de véhicule automobile.The invention relates to a lock of a motor vehicle and can be applied to an opening lock, such as a tailgate or a side door, or a motor vehicle seat.

De manière connue, une telle serrure comporte une platine, en général métallique, par laquelle la serrure est appliquée contre le chant de l'ouvrant ou du siège, et fixée à celui-ci et un boîtier, en général en matière plastique, renfermant l'ensemble du mécanisme de la serrure.In known manner, such a lock comprises a plate, generally metal, by which the lock is applied against the edge of the opening or seat, and fixed thereto and a housing, generally made of plastic, enclosing the whole mechanism of the lock.

La serrure comporte un pêne rotatif destiné à coopérer avec une gâche montée en saillie sur le bâti fixe. A cet effet, le pêne présente une encoche dans laquelle s'engage la gâche lors de la fermeture de l'ouvrant ou le positionnement du siège. La serrure renferme également un cliquet rotatif destiné à retenir le pêne dans la position de fermeture dans laquelle ce dernier retient la gâche. La gâche glisse donc sur une surface latérale de cette encoche du pêne sur une trajectoire dite de fermeture et pousse le pêne en rotation, lors de la fermeture de la serrure.The lock comprises a rotary bolt intended to cooperate with a keeper mounted projecting on the fixed frame. For this purpose, the bolt has a notch in which engages the striker when closing the opening or the positioning of the seat. The lock also contains a rotating ratchet for holding the bolt in the closed position in which the latter holds the striker. The striker thus slides on a lateral surface of this notch of the bolt on a so-called closing path and pushes the bolt in rotation, when closing the lock.

Une telle serrure est décrite dans les documents de brevet GB 2 379 954 A , EP 0 703 331 A1 et EP 1 039 079 . Dans ce dernier document, le but est d'améliorer la tenue dans un même plan du pêne et du cliquet.Such a lock is described in the patent documents GB 2 379 954 A , EP 0 703 331 A1 and EP 1 039 079 . In this last document, the goal is to improve the holding in the same plane of the bolt and the ratchet.

Une traverse est disposée du côté du plan moyen du pêne et du cliquet où ne se trouve pas la platine et, au moyen de collets et de vis, elle entraîne l'application de la platine contre le chant du battant mobile, cette traverse formant alors un obstacle s'opposant à un décalage du plan moyen du pêne par rapport au plan moyen du cliquet.A crossbar is disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and, by means of collars and screws, it causes the application of the plate against the edge of the movable wing, this cross then forming an obstacle opposing an offset of the mean plane of the bolt relative to the mean plane of the pawl.

Par ailleurs, dans une telle serrure, il est en général disposé un tampon ou cale-gâche en matière souple, afin d'absorber toutes les fréquences en vibration lors du déplacement du véhicule, ou d'amortir la fin de course de fermeture. Ce tampon est disposé dans un logement du boîtier, est fixé sur la traverse et, la serrure de l'ouvrant ou du siège étant en position fermée, la gâche est pressée contre ce cale-gâche, bloquée par le pêne, avec déformation en compression du cale-gâche.Moreover, in such a lock, it is generally arranged a buffer or chock-keeper made of flexible material, to absorb all frequencies in vibration during the movement of the vehicle, or to dampen the closing limit switch. This buffer is disposed in a housing housing, is fixed on the crossbar and, the lock of the opening or the seat being in the closed position, the striker is pressed against the wedge striker, blocked by the bolt, with compressive deformation of the wedge striker.

Par ailleurs, il existe en général sur le boîtier une ou des nervures moulées sur le boîtier et dirigées sensiblement perpendiculairement au plan moyen du pêne. En cas de vibrations lors du déplacement du véhicule, le pêne vient en contact avec cette ou ces nervure(s) et est ainsi maintenu en place dans son plan moyen.Moreover, there is generally on the housing one or ribs molded on the housing and directed substantially perpendicular to the mean plane of the bolt. In the event of vibrations during the movement of the vehicle, the bolt comes into contact with this or these ribs and is thus held in place in its mid-plane.

Une épaisseur connue du cale-gâche, dans le sens de sa compression parallèle au plan moyen du pêne et correspondante à la distance entre sa fixation sur la traverse et le contact de la gâche en position fermée, est de l'ordre de 9,5 mm. Cependant, il s'avère qu'une telle épaisseur entraîne la nécessité d'un trop fort effort de pression lors de la fermeture de l'ouvrant ou du siège.A known thickness of the wedge-striker, in the direction of its compression parallel to the mean plane of the bolt and corresponding to the distance between its attachment to the cross member and the contact of the striker in the closed position, is of the order of 9.5 mm. However, it turns out that such a thickness causes the need for too much pressure when closing the sash or seat.

Il peut donc être envisagé de réduire cette épaisseur, afin de diminuer cet effort de fermeture. Cependant, la gâche étant pressée dans l'encoche du pêne entre le cale-gâche et le pêne, la pression résultante sur le pêne est alors également diminuée, et ce dernier, moins tenu, a tendance à se déplacer perpendiculairement à son plan moyen et en particulier à venir cogner contre la platine métallique.It can therefore be envisaged to reduce this thickness, in order to reduce this closing force. However, the striker being pressed into the notch of the bolt between the striker and the bolt, the resulting pressure on the bolt is then also decreased, and the latter, less held, tends to move perpendicularly to its mean plane and especially to come bang against the metal platinum.

Par ailleurs, le pêne est en général recouvert d'un matériau de surmoulage conçu pour diminuer les bruits de vibrations, lorsque le véhicule roule, ainsi que lors des chocs à la fermeture. Cependant, afin d'augmenter la durée de vie de ce matériau soumis à de fortes contraintes lorsque l'ouvrant est fermé, il est souvent renforcé et il en résulte une diminution de son effet amortisseur contre le bruits.Moreover, the bolt is generally covered with an overmolding material designed to reduce vibration noise, when the vehicle rolls, as well as during shocks on closing. However, in order to increase the life of this material subjected to high stresses when the door is closed, it is often reinforced and this results in a reduction of its damping effect against noise.

L'invention résout ces problèmes en proposant une solution diminuant les contacts et chocs du pêne avec la platine métallique, et diminuant ainsi les bruits engendrés par un débattement du pêne lorsque la serrure est en cours de fermeture ainsi qu'en position fermée.The invention solves these problems by proposing a solution reducing the contacts and shocks of the bolt with the metal plate, and thus reducing the noise generated by a movement of the bolt when the lock is being closed and in the closed position.

Pour ce faire, l'invention propose une serrure de véhicule automobile comportant une platine et un boîtier renfermant l'ensemble du mécanisme de la serrure comprenant un pêne rotatif destiné à coopérer avec une gâche montée en saillie sur un bâti fixe et un cliquet rotatif destiné à retenir la gâche en position de fermeture, ladite gâche glissant sur une surface latérale du pêne sur une trajectoire dite de fermeture et poussant le pêne, lors de la fermeture de la serrure, caractérisée en ce que ladite surface latérale est inclinée par rapport à la surface frontale du pêne opposée à la surface frontale tournée vers ladite platine, sur au moins une première partie de ladite trajectoire de fermeture, ladite gâche venant en contact avec le bord de cette surface frontale, lors de la fermeture de la serrure, ladite serrure comportant un cale-gâche en matériau souple disposé dans un logement du boîtier, ladite gâche étant pressée entre ce cale-gâche et le pêne en position fermée de la serrure, ledit boîtier contenant également au moins une nervure dirigée sensiblement perpendiculairement au plan moyen du pêne, caractérisée ledit cale-gâche comporte au moins une extension logée à proximité de ladite nervure et d'épaisseur débordant de la hauteur de la nervure en direction du pêne, de telle sorte qu'un déplacement du pêne perpendiculaire à son plan moyen entraîne une compression de cette extension, sans contact avec ladite nervure.To do this, the invention provides a motor vehicle lock comprising a plate and a housing enclosing the entire mechanism of the lock comprising a rotary bolt for cooperating with a strike projecting on a fixed frame and a rotary ratchet for to retain the striker in the closed position, said striker sliding on a lateral surface of the bolt on a so-called closing trajectory and pushing the bolt, when closing the lock, characterized in that said lateral surface is inclined with respect to the front surface of the bolt opposite the front surface facing said plate, on at least a first portion of said closing path, said striker coming into contact with the edge of said front surface, when closing the lock, said lock comprising a wedge-keeper made of flexible material disposed in a housing of the housing, said striker being pressed between this wedge-keeper and the êne in the closed position of the lock, said housing also containing at least one rib directed substantially perpendicular to the mean plane of the bolt, characterized said keeper comprises at least one extension housed close to said rib and of thickness exceeding the height of the rib in the direction of the bolt, so that a displacement of the bolt perpendicular to its mean plane causes a compression of this extension, without contact with said rib.

Grâce à l'invention, il résulte une force de contact de la gâche sur le pêne dont une composante est sensiblement perpendiculaire à la face latérale et est dirigée vers le haut et le pêne subit un couple résultant qui le pousse vers le haut, en direction du boîtier.Thanks to the invention, there results a contact force of the striker on the bolt, a component of which is substantially perpendicular to the lateral face and is directed upwards and the bolt undergoes a resulting torque which pushes it upwards, in the direction of the case.

Lors de vibrations, le pêne vient donc buter contre le boîtier, et en particulier contre la ou les nervure(s) de ce dernier. Le boîtier étant en matière plastique, le bruit occasionné est bien moindre que celui de chocs sur la platine métallique.During vibrations, the bolt comes to abut against the housing, and in particular against the ribs or ribs of the latter. The case being made of plastic material, the noise caused is much less than that of shocks on the metal plate.

En outre, le pêne ne vient pas cogner sur la platine métallique, lors de vibrations, mais il vient buter contre l'extension du cale-gâche. Il en résulte très peu de bruit. Selon l'invention, ladite surface latérale est inclinée par rapport à la surface frontale du pêne opposée à ladite platine d'un angle inférieur à 90 degrés et supérieur ou égal à 85 degrés, et avantageusement cet angle est compris entre 85 et 88 degrés.In addition, the bolt does not bang on the metal plate, during vibration, but it comes up against the extension of the wedge-keeper. This results in very little noise. According to the invention, said lateral surface is inclined with respect to the front surface of the bolt opposite said platen by an angle of less than 90 degrees and greater than or equal to 85 degrees, and advantageously this angle is between 85 and 88 degrees.

De préférence, ledit cale-gâche est fixé sur une traverse disposée du côté du plan moyen du pêne et du cliquet où ne se trouve pas la platine et formant obstacle à un décalage du plan moyen du pêne par rapport au plan moyen du cliquet.Preferably, said wedge-keeper is fixed on a crosspiece disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and forming an obstacle to an offset of the mean plane of the bolt relative to the mean plane of the pawl.

Avantageusement, l'épaisseur de l'extension déborde d'environ 0,4 mm de la hauteur de la nervure.Advantageously, the thickness of the extension extends approximately 0.4 mm from the height of the rib.

L'invention est décrite ci-après plus en détails à l'aide de figures ne représentant que des modes de réalisation préférés de l'invention.

  • La figure 1 est une vue de dessous d'une serrure conforme à l'invention, sans sa platine, en position fermée.
  • La figure 2 est une vue partielle en perspective de la figure 1.
  • La figure 3 est une vue en perspective d'un cale-gâche conforme à l'invention.
  • La figure 4 est une vue en perspective d'un boîtier d'une serrure conforme à l'invention.
  • La figure 5 est une vue en perspective d'un boîtier d'une serrure conforme à l'invention, équipé de son cale-gâche.
  • La figure 6 est une vue de détail de la figure 4.
  • La figure 7 est une vue partielle en coupe verticale de la figure 1.
  • La figure 8 est une vue partielle e perspective d'une serrure conforme à l'invention.
  • La figure 9 est une vue en coupe de cette figure 8.
The invention is described below in more detail with the aid of figures representing only preferred embodiments of the invention.
  • The figure 1 is a bottom view of a lock according to the invention, without its plate, in the closed position.
  • The figure 2 is a partial perspective view of the figure 1 .
  • The figure 3 is a perspective view of a wedge-keeper according to the invention.
  • The figure 4 is a perspective view of a housing of a lock according to the invention.
  • The figure 5 is a perspective view of a housing of a lock according to the invention, equipped with its wedge-striker.
  • The figure 6 is a detail view of the figure 4 .
  • The figure 7 is a partial vertical sectional view of the figure 1 .
  • The figure 8 is a partial perspective view of a lock according to the invention.
  • The figure 9 is a sectional view of this figure 8 .

Dans la description qui suit, dans un but de simplification, les directions telles que « vers le haut » ou « vers le bas » sont à considérer uniquement selon l'orientation des figures, la serrure pouvant être disposée différemment sur le véhicule automobile.In the following description, for purposes of simplification, the directions such as "upwards" or "downwards" are to be considered solely according to the orientation of the figures, the lock being able to be arranged differently on the motor vehicle.

Comme représenté sur la figure 1, une serrure de véhicule automobile destinée à un ouvrant ou un siège comporte une platine non représentée et un boîtier 1 renfermant l'ensemble du mécanisme de la serrure comprenant un pêne rotatif 2 destiné à coopérer avec une gâche 3 montée en saillie sur un bâti fixe, un cliquet rotatif 4 destiné à retenir la gâche 3 en position de fermeture et un cale-gâche 5 en matériau souple disposé dans un logement du boîtier, la gâche 3 étant pressée entre ce cale-gâche 5 et le pêne 2 en position fermée de la serrure.As shown on the figure 1 , a motor vehicle lock intended for an opening or a seat comprises a not shown plate and a housing 1 enclosing the whole mechanism of the lock comprising a rotary bolt 2 intended to cooperate with a striker 3 mounted on a fixed frame a rotary pawl 4 for retaining the striker 3 in the closed position and a striker wedge 5 made of flexible material disposed in a housing of the housing, the striker 3 being pressed between this striker 5 and the bolt 2 in the closed position of the lock.

La gâche 3 glisse donc sur une surface latérale de cette encoche du pêne 2 sur une trajectoire dite de fermeture AA' de la face correspondante du pêne 2, le cale-gâche se déformant par compression.The striker 3 thus slides on a lateral surface of this notch of the bolt 2 on a so-called closing path AA 'of the corresponding face of the bolt 2, the striker being deformed by compression.

De préférence, le cale-gâche est en caoutchouc à base de nitrile, de préférence d'une dureté supérieure à 50 Shore A, de préférence de l'ordre de 70 Shore A.Preferably, the chock-keeper is nitrile-based rubber, preferably with a hardness greater than 50 Shore A, preferably of the order of 70 Shore A.

La serrure comporte également une traverse 6 disposée du côté du plan moyen du pêne et du cliquet où ne se trouve pas la platine et formant obstacle à un décalage du plan moyen du pêne par rapport au plan moyen du cliquet, telle que décrite dans le document de brevet EP 1 039 079 , et le cale-gâche 5 est fixé sur cette traverse 6 comme représenté sur les figure 2 et 3. Le cale-gâche comporte un orifice 5A dans lequel est introduite une branche 6A de la traverse 6.The lock also comprises a crosspiece 6 disposed on the side of the mean plane of the bolt and the pawl where the plate is not located and forming an obstacle to an offset of the mean plane of the bolt relative to the mean plane of the pawl, as described in document patent EP 1 039 079 , and the wedge-keeper 5 is fixed on this crosspiece 6 as shown on the figure 2 and 3 . The chock-keeper comprises an orifice 5A in which is introduced a branch 6A of the crossbar 6.

Cette fixation 5A, 6A constitue la fixation du cale-gâche qui peut éventuellement être réalisée de façon différente selon la conformation de la serrure et la présente d'une traverse ou non.This attachment 5A, 6A is the fixing of the wedge-keeper which may optionally be performed differently depending on the conformation of the lock and the present of a cross or not.

Par ailleurs, et comme visible sur la figure 4, le boîtier 1 comporte une nervure 1A dirigée sensiblement perpendiculairement au plan moyen du pêne 2. Selon l'art antérieur, cette nervure est destinée à maintenir le pêne 2 en position dans le boîtier. Plusieurs nervures de ce type peuvent être prévues.Moreover, and as visible on the figure 4 , the housing 1 comprises a rib 1A directed substantially perpendicularly to the mean plane of the bolt 2. According to the prior art, this rib is intended to hold the bolt 2 in position in the housing. Several ribs of this type can be provided.

Selon un perfectionnement de l'invention, une telle nervure connue est diminuée en hauteur et le cale-gâche 5 comporte une extension 5B logée à proximité de la nervure 1A et d'épaisseur supérieure à la hauteur de cette rainure, de telle sorte qu'un déplacement du pêne 2 perpendiculairement à son plan moyen entraîne une compression de cette extension 5A, sans contact avec la nervure 1A, comme visible sur la figure 5. De préférence, l'épaisseur de l'extension 5A est supérieure de 0,4 mm de la hauteur de la nervure 1A. De façon plus générale, l'épaisseur de l'extension 5B déborde de la hauteur de la nervure 1A en direction du pêne 2, d'environ 0,4 mm.According to an improvement of the invention, such a known rib is reduced in height and the chock-keeper 5 has an extension 5B housed near the rib 1A and thicker than the height of this groove, so that a displacement of the bolt 2 perpendicularly to its mean plane causes a compression of this extension 5A, without contact with the rib 1A, as visible on the figure 5 . Preferably, the thickness of the extension 5A is 0.4 mm higher than the height of the rib 1A. More generally, the thickness of the extension 5B exceeds the height of the rib 1A towards the bolt 2, about 0.4 mm.

Comme également visible sur la figure 1, la nervure 1A est raccourcie d'environ 0,6 mm et comporte un tronçon 1B d'extrémité formé de façon inclinée tout autant à son bord en formant un tronçon de nervure triangulaire que relativement à son positionnement relatif avec la nervure 1A. L'extension 5B comporte donc un bord externe 5C également incliné correspondant à ce tronçon d'extrémité 1B.As also visible on the figure 1 , the rib 1A is shortened by about 0.6 mm and has an end portion 1B formed inclined at its edge as well forming a triangular rib portion relative to its relative positioning with the rib 1A. The extension 5B therefore comprises an outer edge 5C also inclined corresponding to this end section 1B.

Cependant, ce tronçon d'extrémité 1B de la nervure 1A peut être également formé de façon inclinée à son bord en formant un tronçon de nervure triangulaire et non pas relativement à son positionnement relatif avec la nervure 1A, comme visible sur les figures 4, 5 et 6 où son plan est perpendiculaire à celui de la nervure 1A. L'extension 5B comporte alors un bord externe 5C droit correspondant à ce tronçon d'extrémité 1B.However, this end portion 1B of the rib 1A can also be formed inclined at its edge by forming a triangular rib section and not relative to its relative positioning with the rib 1A, as visible on the Figures 4, 5 and 6 where its plane is perpendicular to that of the rib 1A. The extension 5B then has an external edge 5C right corresponding to this end section 1B.

Enfin, ce tronçon d'extrémité 1B de la nervure 1A peut ne pas être inclinée ni à son bord et ni relativement à son positionnement relatif avec la nervure 1A, et être un tronçon de nervure perpendiculaire à la nervure 1A et de forme rectangulaire. L'extension 5B comporte alors également un bord externe 5C droit correspondant à ce tronçon d'extrémité 1B.Finally, this end portion 1B of the rib 1A may not be inclined neither at its edge nor relative to its position. relative with the rib 1A, and be a rib portion perpendicular to the rib 1A and rectangular. The extension 5B then also comprises a right outer edge 5C corresponding to this end section 1B.

Eventuellement, une fine nervure 1C peut subsister au-dessus de l'extension 5A du cale-gâche 5, comme visible sur les figures 6 et 7, l'épaisseur de l'extension 5B étant modifiée en conséquence.Optionally, a thin rib 1C may remain above the extension 5A of the striker block 5, as visible on the Figures 6 and 7 , the thickness of the extension 5B being modified accordingly.

L'épaisseur e du cale-gâche 5, dans le sens de sa compression parallèle au plan moyen du pêne 2 et correspondante à la distance entre sa fixation sur la traverse 6 et le contact de la gâche 3 en position fermée est de préférence de l'ordre de 8,7 mm.The thickness e of the lock wedge 5, in the direction of its compression parallel to the mean plane of the bolt 2 and corresponding to the distance between its fixing on the crosspiece 6 and the contact of the keeper 3 in the closed position is preferably 1 order of 8.7 mm.

Le cale-gâche 5 peut comporter plusieurs extensions telles que l'extension 5B précédemment décrite, selon l'agencement de nervures 1A disposées sur le boîtier. En particulier, il peut présenter deux extensions symétriques par rapport à son plan central P.The chock-keeper 5 may include several extensions such as extension 5B described above, according to the arrangement of ribs 1A disposed on the housing. In particular, it can have two extensions symmetrical with respect to its central plane P.

Comme visible sur les figures 8 et 9, selon l'invention, la surface latérale 2B du pêne contre laquelle vient glisser la gâche 2 lors de la fermeture de la serrure est inclinée par rapport à la surface frontale 2A du pêne 2 opposée à la surface frontale 2C tournée vers la platine 7, sur au moins une première partie de la trajectoire de fermeture A-A', la gâche 2 venant en contact avec le bord de cette surface frontale 2A, lors de la fermeture de la serrure.As visible on Figures 8 and 9 according to the invention, the lateral surface 2B of the bolt against which the latch 2 slides during closing of the lock is inclined with respect to the front surface 2A of the bolt 2 opposite the front surface 2C turned towards the plate 7, on at least a first portion of the closing path A-A ', the striker 2 coming into contact with the edge of this front surface 2A, when closing the lock.

De préférence, cette surface latérale 2B est inclinée par rapport à la surface frontale 2A du pêne opposée à la surface frontale 2C tournée vers la platine d'un angle α inférieur à 90 degrés et supérieur ou égal à 85 degrés, et avantageusement cet angle α est compris entre 85 et 88 degrés. Le choix de cet angle α dépend plus précisément des dimensions spécifiques des divers éléments de la serrure.Preferably, this lateral surface 2B is inclined with respect to the front surface 2A of the bolt opposite the front surface 2C turned towards the plate by an angle α less than 90 degrees and greater than or equal to 85 degrees, and advantageously this angle α is between 85 and 88 degrees. The choice of this angle α depends more precisely on the specific dimensions of the various elements of the lock.

Il en résulte que la force de contact F de la gâche 3 sur le pêne 2, qui est sensiblement perpendiculaire à la face latérale 2B, est dirigée vers le haut et que le pêne 2 subit un couple résultant qui le pousse vers le haut, en direction du boîtier 1.As a result, the contact force F of the striker 3 on the bolt 2, which is substantially perpendicular to the lateral face 2B, is directed upwardly and that the bolt 2 undergoes a resulting torque that pushes it upwards towards the housing 1.

Contrairement aux agencements de l'art antérieur, il ne vient donc pas cogner sur la platine 7 métallique, lors de vibrations, mais il vient buter préférentiellement contre l'extension 5B du cale-gâche 5 précédemment décrite. Il en résulte très peu de bruit.Unlike the arrangements of the prior art, it does not come knock on the metal plate 7, during vibration, but it abuts preferentially against the extension 5B striker 5 previously described. This results in very little noise.

Il est à noter que, même si le cale-gâche 5 n'est pas pourvu d'une telle extension 5A, le pêne 2 vient buter contre le boîtier 1, et en particulier contre la nervure 1A. Le boîtier étant en matière plastique, le bruit occasionné est bien moindre que celui de chocs sur la platine 7 métallique et une géométrie spécifique à la réduction de bruit peut y être moulée.It should be noted that, even if the chock-keeper 5 is not provided with such an extension 5A, the bolt 2 abuts against the housing 1, and in particular against the rib 1A. The housing being made of plastic material, the noise caused is much less than that of shocks on the metal plate 7 and a specific noise reduction geometry can be molded therein.

Claims (4)

  1. A latch for a motor vehicle including a plate (7) and a case (1) enclosing the entire mechanism of the latch comprising a rotating bolt (2) intended to cooperate with a striker (3) mounted in a protruding manner on a fixed frame and a rotary pawl (4) intended to retain the striker (3) in the closed position, said striker (3) sliding on a lateral surface (2B) of the bolt (2) on a pathway called closure pathway and pushing the bolt (2), during the closure of the latch, wherein said lateral surface (2B) is inclined with respect to the front surface (2A) of the bolt opposite to the front surface (2C) turned toward said plate (7), over at least one first portion of said closure pathway, said striker coming into contact with the edge of this front surface, during the closure of the latch, the latch further including a striker-wedge (5) made of a flexible material disposed in a housing of the case, said striker (3) being pressed between this striker-wedge (5) and the bolt (2) in the closed position of the latch, said case (1) also containing at least one rib (1A) directed substantially perpendicularly to the midplane of the bolt (2), wherein said striker-wedge (5) includes at least one extension (5B) housed proximate to said rib (1A) and with a thickness extending beyond the height of the rib (1A) in the direction of the bolt (2), so that a displacement of the bolt (2) perpendicular to its midplane results in a compression of this extension (5B), without any contact with said rib (1A), and such that said lateral surface (2B) is inclined with respect to the front surface (2A) of the bolt opposite to the front surface (2C) turned toward said plate (7) by an angle (α) smaller than 90 degrees and greater than or equal to 85 degrees.
  2. The latch according to claim 1, characterized in that said lateral surface (2B) is inclined with respect to the front surface (2A) of the bolt opposite to the front surface (2C) turned toward said plate by an angle (α) comprised between 85 and 88 degrees.
  3. The latch according to any of the preceding claims, characterized in that said striker-wedge (5) is fixed on a cross-member (6) disposed on the side of the midplane of the bolt (2) and of the pawl (4) where there is no plate and forming an obstacle to a shift of the midplane of the bolt (2) relative to the midplane of the pawl (4).
  4. The latch according to any of the preceding claims, characterized in that the thickness of the extension (5A) extends beyond the height of the rib (1A) by about 0.4 mm.
EP14711806.1A 2013-02-12 2014-02-10 Motor vehicle lock Active EP2956607B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1300306A FR3001994B1 (en) 2013-02-12 2013-02-12 LOCK OF MOTOR VEHICLE
PCT/FR2014/050244 WO2014125197A2 (en) 2013-02-12 2014-02-10 Motor vehicle lock

Publications (2)

Publication Number Publication Date
EP2956607A2 EP2956607A2 (en) 2015-12-23
EP2956607B1 true EP2956607B1 (en) 2017-09-13

Family

ID=48128512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14711806.1A Active EP2956607B1 (en) 2013-02-12 2014-02-10 Motor vehicle lock

Country Status (7)

Country Link
EP (1) EP2956607B1 (en)
CN (1) CN104981577B (en)
BR (1) BR112015019293A2 (en)
FR (1) FR3001994B1 (en)
MA (1) MA38300B1 (en)
RU (1) RU2655252C2 (en)
WO (1) WO2014125197A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015204190B4 (en) * 2015-03-09 2020-12-17 Adient Luxembourg Holding S.À R.L. Locking unit for a vehicle seat and vehicle seat
DE102016225480A1 (en) 2016-12-19 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Striker of a motor vehicle body lock, motor vehicle body lock with such a striker and correspondingly equipped motor vehicle
DE102022133203A1 (en) 2022-12-14 2024-06-20 Kiekert Aktiengesellschaft Motor vehicle door lock

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Publication number Priority date Publication date Assignee Title
AU584509B2 (en) * 1986-12-19 1989-05-25 Kabushikikaisha Anseikogyo Vehicle door latch
US5520426A (en) * 1994-09-12 1996-05-28 General Motors Corporation Vehicle door latch with integral pillar dampener
FR2791386B1 (en) 1999-03-23 2001-06-08 Valeo Securite Habitacle MOTOR VEHICLE OPENING LOCK
JP3933898B2 (en) * 2001-09-21 2007-06-20 三井金属鉱業株式会社 Vehicle door lock device
EP2423415A4 (en) * 2009-04-23 2012-12-12 Aisin Seiki Vehicle door locking device
DE202009013269U1 (en) * 2009-10-02 2011-02-24 BROSE SCHLIEßSYSTEME GMBH & CO. KG Motor vehicle lock
JP4953485B2 (en) * 2010-02-15 2012-06-13 三井金属アクト株式会社 Vehicle door latch device
DE102010011322A1 (en) * 2010-03-13 2011-09-15 Volkswagen Ag Rotating gate for lock, particularly lock of door or flap or cover of motor vehicle, has form element, and axis of rotation of rotating gate is provided in rotating motion at back grip of closing handle
JP5140893B2 (en) * 2010-06-09 2013-02-13 三井金属アクト株式会社 Latch device

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP2956607A2 (en) 2015-12-23
FR3001994B1 (en) 2018-01-05
CN104981577B (en) 2017-06-23
MA38300A1 (en) 2016-04-29
MA38300B1 (en) 2017-12-29
CN104981577A (en) 2015-10-14
BR112015019293A2 (en) 2017-07-18
RU2655252C2 (en) 2018-05-24
RU2015138898A (en) 2017-03-17
WO2014125197A3 (en) 2014-11-20
WO2014125197A2 (en) 2014-08-21
FR3001994A1 (en) 2014-08-15

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