EP1030007A1 - Striker for a motor vehicle door lock - Google Patents

Striker for a motor vehicle door lock Download PDF

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Publication number
EP1030007A1
EP1030007A1 EP00400362A EP00400362A EP1030007A1 EP 1030007 A1 EP1030007 A1 EP 1030007A1 EP 00400362 A EP00400362 A EP 00400362A EP 00400362 A EP00400362 A EP 00400362A EP 1030007 A1 EP1030007 A1 EP 1030007A1
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EP
European Patent Office
Prior art keywords
pin
core
ring
vehicle
diameter
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.)
Withdrawn
Application number
EP00400362A
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German (de)
French (fr)
Inventor
Luc Deblock
Jean Sannier
José D'Almeida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Securite Habitacle SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Securite Habitacle SAS filed Critical Valeo Securite Habitacle SAS
Publication of EP1030007A1 publication Critical patent/EP1030007A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • 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
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means

Definitions

  • the present invention relates to a keeper for a lock motor vehicle door.
  • the vehicle door strikes are usually consisting of a metal plate which is folded so that form a U, one of the branches of which is fixed to the body of the vehicle, and a pin constituting a spacer between the ends free from the two branches of the U, intended to be hung by the bolt when closing the door.
  • the door consists of a panel external and an internal box consisting of an internal wall parallel to the exterior door panel and end wall overall perpendicular to said external panel.
  • the lock is arranged in the internal box, in the angle between the internal wall and the wall end of said box.
  • a notch is made in the corner of the box, partly on the inner wall and partly on the wall end of said box, so as to allow the insertion of the keeper in the opening of the lock when closing the door for the attachment of the pin of said strike by the bolt of said lock.
  • the strike piece is generally made up of a core cylindrical metal, which is made integral with the two branches of the U by known techniques such as riveting or screwing.
  • a plastic ring is provided on the outer wall of this core so as to reduce door closing noises, this ring being, for example, placed on the core by overmolding.
  • Said ring has an external diameter corresponding to the width of the notch bolt in the area of the said notch where the pawn is located when the door is closed.
  • the keepers are not strong enough which causes them deformation during impacts.
  • the U branch not attached to the vehicle body moves under the action of a bending of the pin due to a force exerted by the bolt of the lock and, in this case, the maximum stress is exerted on the end of the pawn which is near the branch attached to the vehicle body.
  • the U branch not attached to the vehicle upright is close to the other branch by crushing the plastic ring: in this case, the strike enters the door casing and the door cannot no longer be open.
  • the invention aims to provide a resistance keeper increased.
  • the invention relates to a keeper for a lock motor vehicle door consisting, on the one hand, of a plate folded back to form a U with two parallel branches connected by a bottom, one of the branches being fixed on an element of the vehicle body, and on the other hand, of a cylindrical pin of external diameter d connecting the free ends of the branches of the U, this pin being intended to slide in a notch in the bolt of the lock, said pin being made up of a metallic core whose ends are secured to said branches and a plastic ring which surrounds said core and has a thickness e sufficient for dampen the closing noise of the vehicle door, the diameter external of said pin being equal to the width of the notch of the bolt in the area of said notch where the pawn is located when the door is closed, characterized in that the plastic ring does not substantially covers the area of the pawn in which the bolt is likely to cooperate with the striker pin when the door is closed.
  • the core of the keeper has, in its zone where the bolt of the lock is likely to cooperate with the pin of the door release when the door is closed, a circumferential clearance of depth e filled with plastic to form the ring of the pawn.
  • the soul of the pawn is diameter d at its end intended to be fixed on the branch of the keeper linked to the vehicle body.
  • the core is of diameter d at its end adjacent to the branch of the keeper, which is not secured to the vehicle body.
  • the core of the pawn has a shoulder beyond which it has a diameter reduced to d-2e; for this last variant, we can provide that the clearance to the right of which the pawn ring is formed is extended by a threaded end by which the pin is screwed into a collar provided on the strike branch, which is not attached to the vehicle body.
  • the soul of the pawn has a diameter a little less than d and the clearance of said core constitutes a groove in which is placed the plastic ring of thickness e, said ring being extended on both sides by very thin sleeves, so that the plastic covers said core over its entire length between the branches of the spoils.
  • a keeper 1 of the prior art consists of a folded plate so as to form a U having two parallel branches 10 and 12 connected by a bottom 11.
  • the branch 10 is intended to be fixed by screws, not shown in the drawing, to the body of a vehicle.
  • a pin 2 connects the free ends of the branches 10 and 12 of the U.
  • This pin 2 is constituted by a metallic cylindrical core 38 secured to said branches, for example by riveting, and carries a ring 31 of plastic material of thickness e intended for dampen the closing noises of the vehicle door, a ring which uniformly covers the entire surface of the tube 38.
  • the riveting of the pin 2 can be carried out in particular by engaging a frustoconical head 38 a of the core 38 in a frustoconical bore of the branch 12 and by riveting by stamping the other end 38 b of the core 38 in a bore of the branch 10.
  • the outer diameter of the plastic ring 31, which constitutes the external diameter d of the pin 2 of the keeper 1 is equal, to the clearance close to the width of the bolt notch in the area of said notch where the pawn is located when the door is closed. This diameter d is therefore defined by the bolt of the lock with which the keeper must cooperate.
  • the plastic ring 31 must have a thickness e sufficient to dampen closing noises as well as possible the vehicle door, both at the time of closing when the bolt comes into contact with the keeper, only after closing when the bolt is in contact with the strike and that this contact is subjected to vibrations due to movement of the vehicle.
  • FIG. 1A shows a first type of deformation under the action of the force F 1 exerted on the pin 2 by the lock bolt; to oppose it, the invention proposes to keep a maximum diameter for the area of the pin 2, which is adjacent to the branch 10.
  • FIG. 1B shows a second type of deformation under the action of the force F 2 exerted by a sheet 50 of the vehicle door; to oppose it, the invention proposes to ensure that the branch 12 is retained by the metal core of the pin 2 either by simple support or by a thread.
  • the plastic ring of predetermined thickness does not cover that a reduced zone of the core corresponding to zone Z at the level of which the bolt cooperates with the striker pin.
  • This Z zone is more as wide as the thickness of the bolt so as to take account of dispersions current geometries at this level.
  • the pin 2 has an external diameter d and that the core 20 is generally of diameter d but has a circumferential clearance 21 constituting a groove of depth e filled with d 'a plastic which constitutes the ring 30.
  • the clearance 21 extends axially on the tube 20 throughout the zone Z.
  • the fixing of the core 20 on the striker plate is effected by engagement of its frustoconical head 20 c in a frustoconical bore of the branch 10 and by riveting its opposite end 20 a in an appropriate bore of the branch 12.
  • the branch 12 of the keeper which is not fixed to the vehicle body, has an internally threaded collar 13 into which is screwed a threaded end 23 of the core 22 of the pin 2.
  • the core 22 is of diameter d at its end located in the vicinity of the branch 10 fixed to the vehicle body, this end ending in a screw head 23 a of frustoconical shape which is housed in a recess of the same shape so as not to project from the branch 10 when the end 23 of the core 22 of the pin is screwed into the collar 13, and has a shoulder 24 beyond which the core 22 has a diameter reduced to d-2e.
  • a ring 32 of plastic material of thickness e is put in place in the whole zone Z, which is between the shoulder 24 and the threaded end 23.
  • the core 25 of the pin 2 is similar to that of Figure 2 but has a diameter a little less than d so that the ring 36 of plastic material of thickness e arranged in the clearance 26 of the core 25 can be extended by sleeves 35 and 37 of very small thickness.
  • the plastic material covers the entire lateral surface of the core, which makes it possible to propose a keeper according to the invention having the same appearance as the keepers of the prior art while being more resistant.
  • the sleeves 35 and 37 having a very small thickness the core 25 of the pin retains, in the vicinity of the branch 10, that is to say in its zone of maximum stress in the event of a frontal impact from the vehicle, a large diameter very close to the value imposed by the dimensioning of the bolt.
  • the clearance 26 constitutes a groove, which leaves, on the side of the branch 12, at the level of the sheath 37, a flange 25 a forming a support for the branch 12; the branch 10 has a frustoconical bore where the head 25 b frustoconical of the core 25 is positioned; the connection of the pin 2 with the plate of the keeper 1 is ensured by riveting 25 c .
  • the deformation of the branch 12 in the direction of the branch 10 is prevented due to the presence of the flange 25 a .

Abstract

the keeper for a motor vehicle door lock has a u-shaped frame with parallel branches (10,12) connected by a base (11) and a cross pin (12) to slide in a cut out in the bolt. The pin has a metallic tube fixed to the branches. The pin carries a sleeve of plastic to dampen closure shocks. The plastics sleeve does not cover the part of the pin which is engaged by the bolt when the lock is closed.

Description

La présente invention concerne une gâche pour serrure de portière de véhicule automobile.The present invention relates to a keeper for a lock motor vehicle door.

Les gâches de portière de véhicule sont usuellement constituées d'une plaquette métallique qui est repliée de manière à former un U dont l'une des branches est fixée sur la carrosserie du véhicule, et d'un pion constituant une entretoise entre les extrémités libres des deux branches du U, destiné à être accroché par le pêne lors de la fermeture de la portière. La portière est constituée d'un panneau externe et d'un caisson interne constitué d'une paroi interne parallèle au panneau externe de la portière et d'une paroi d'extrémité globalement perpendiculaire audit panneau externe. La serrure est disposée dans le caisson interne, dans l'angle entre la paroi interne et la paroi d'extrémité dudit caisson. Une échancrure est pratiquée dans l'angle du caisson, en partie sur la paroi interne et en partie sur la paroi d'extrémité dudit caisson, de manière à permettre l'insertion de la gâche dans l'ouverture de la serrure lors de la fermeture de la portière en vue de l'accrochage du pion de ladite gâche par le pêne de ladite serrure.The vehicle door strikes are usually consisting of a metal plate which is folded so that form a U, one of the branches of which is fixed to the body of the vehicle, and a pin constituting a spacer between the ends free from the two branches of the U, intended to be hung by the bolt when closing the door. The door consists of a panel external and an internal box consisting of an internal wall parallel to the exterior door panel and end wall overall perpendicular to said external panel. The lock is arranged in the internal box, in the angle between the internal wall and the wall end of said box. A notch is made in the corner of the box, partly on the inner wall and partly on the wall end of said box, so as to allow the insertion of the keeper in the opening of the lock when closing the door for the attachment of the pin of said strike by the bolt of said lock.

Le pion de la gâche est généralement constitué par une âme cylindrique métallique, qui est rendue solidaire des deux branches du U par des techniques connues telles que le rivetage ou le vissage. Une bague en matière plastique est prévue sur la paroi externe de cette âme de manière à réduire les bruits de fermeture de portière, cette bague étant, par exemple, mise en place sur l'âme par surmoulage. Ladite bague a un diamètre externe correspondant à la largeur de l'échancrure de pêne dans la zone de ladite échancrure où se trouve le pion lorsque la portière est fermée.The strike piece is generally made up of a core cylindrical metal, which is made integral with the two branches of the U by known techniques such as riveting or screwing. A plastic ring is provided on the outer wall of this core so as to reduce door closing noises, this ring being, for example, placed on the core by overmolding. Said ring has an external diameter corresponding to the width of the notch bolt in the area of the said notch where the pawn is located when the door is closed.

Il a été constaté, lors de tests ainsi que lors d'accidents, que les gâches ne sont pas assez résistantes ce qui provoque leur déformation lors des chocs. Suivant un premier type de déformation, la branche du U non fixée à la carrosserie du véhicule se déplace sous l'action d'une flexion du pion due à une force exercée par le pêne de la serrure et, dans ce cas, la sollicitation maximum s'exerce sur l'extrémité du pion qui se trouve près de la branche fixée à la carrosserie du véhicule. Suivant un second type de déformation, la branche du U non fixée au montant du véhicule est rapprochée de l'autre branche en écrasant la bague en matière plastique : dans ce cas, la gâche pénètre dans le caisson de la portière et cette dernière ne peut plus être ouverte.It has been found, during tests as well as during accidents, that the keepers are not strong enough which causes them deformation during impacts. According to a first type of deformation, the U branch not attached to the vehicle body moves under the action of a bending of the pin due to a force exerted by the bolt of the lock and, in this case, the maximum stress is exerted on the end of the pawn which is near the branch attached to the vehicle body. According to a second type of deformation, the U branch not attached to the vehicle upright is close to the other branch by crushing the plastic ring: in this case, the strike enters the door casing and the door cannot no longer be open.

L'invention a pour but de proposer une gâche de résistance accrue.The invention aims to provide a resistance keeper increased.

A cet effet, l'invention concerne une gâche pour serrure de portière de véhicule automobile constituée, d'une part, d'une plaquette repliée de manière à former un U présentant deux branches parallèles raccordées par un fond, l'une des branches étant fixée sur un élément de la carrosserie du véhicule, et d'autre part, d'un pion cylindrique de diamètre externe d reliant les extrémités libres des branches du U, ce pion étant destiné à glisser dans une échancrure du pêne de la serrure, ledit pion étant constitué d'une âme métallique dont les extrémités sont solidarisées avec lesdites branches et d'une bague en matière plastique qui entoure ladite âme et présente une épaisseur e suffisante pour amortir les bruits de fermeture de la portière du véhicule, le diamètre externe dudit pion étant égal à la largeur de l'échancrure du pêne dans la zone de ladite échancrure où se trouve le pion lorsque la portière est fermée, caractérisée par le fait que la bague en matière plastique ne recouvre sensiblement que la zone du pion dans laquelle le pêne est susceptible de coopérer avec le pion de la gâche quand la portière est fermée.To this end, the invention relates to a keeper for a lock motor vehicle door consisting, on the one hand, of a plate folded back to form a U with two parallel branches connected by a bottom, one of the branches being fixed on an element of the vehicle body, and on the other hand, of a cylindrical pin of external diameter d connecting the free ends of the branches of the U, this pin being intended to slide in a notch in the bolt of the lock, said pin being made up of a metallic core whose ends are secured to said branches and a plastic ring which surrounds said core and has a thickness e sufficient for dampen the closing noise of the vehicle door, the diameter external of said pin being equal to the width of the notch of the bolt in the area of said notch where the pawn is located when the door is closed, characterized in that the plastic ring does not substantially covers the area of the pawn in which the bolt is likely to cooperate with the striker pin when the door is closed.

Avantageusement, l'âme de la gâche présente, dans sa zone où le pêne de la serrure est susceptible de coopérer avec le pion de la gâche quand la portière est fermée, un dégagement circonférentiel de profondeur e rempli de matière plastique pour constituer la bague du pion.Advantageously, the core of the keeper has, in its zone where the bolt of the lock is likely to cooperate with the pin of the door release when the door is closed, a circumferential clearance of depth e filled with plastic to form the ring of the pawn.

Dans un premier mode de réalisation, l'âme du pion est de diamètre d à son extrémité destinée à être fixée sur la branche de la gâche liée à la carrosserie du véhicule. Selon une première variante, l'âme est de diamètre d à son extrémité adjacente à la branche de la gâche, qui n'est pas solidarisée de la carrosserie du véhicule. Dans une autre variante, l'âme du pion présente un épaulement au-delà duquel elle a un diamètre réduit à d-2e ; pour celle dernière variante, on peut prévoir que le dégagement au droit duquel est formée la bague du pion se prolonge par une extrémité filetée par laquelle le pion est vissé dans un collet ménagé sur la branche de la gâche, qui n'est pas fixée à la carrosserie du véhicule.In a first embodiment, the soul of the pawn is diameter d at its end intended to be fixed on the branch of the keeper linked to the vehicle body. According to a first variant, the core is of diameter d at its end adjacent to the branch of the keeper, which is not secured to the vehicle body. In another variant, the core of the pawn has a shoulder beyond which it has a diameter reduced to d-2e; for this last variant, we can provide that the clearance to the right of which the pawn ring is formed is extended by a threaded end by which the pin is screwed into a collar provided on the strike branch, which is not attached to the vehicle body.

Dans un autre mode de réalisation, l'âme du pion a un diamètre un peu inférieur à d et le dégagement de ladite âme constitue une gorge dans laquelle est disposée la bague de matière plastique d'épaisseur e, ladite bague étant prolongée de part et d'autre par des fourreaux de très faible épaisseur, de sorte que la matière plastique recouvre ladite âme sur toute sa longueur entre les branches de la gâche.In another embodiment, the soul of the pawn has a diameter a little less than d and the clearance of said core constitutes a groove in which is placed the plastic ring of thickness e, said ring being extended on both sides by very thin sleeves, so that the plastic covers said core over its entire length between the branches of the spoils.

L'invention sera mieux comprise grâce à la description, qui va suivre, d'exemples de réalisation non limitatifs faite en se référant au dessin annexé.The invention will be better understood from the description, which will follow, nonlimiting exemplary embodiments made with reference in the attached drawing.

Sur ce dessin:

  • la figure 1 montre, schématiquement en coupe, une gâche de l'état de la technique ;
  • les figures 1A et 1B montrent les déformations de la gâche de la figure 1 en cas de choc frontal du véhicule ;
  • les figures 2 à 4 montrent, schématiquement en coupe, trois variantes de réalisation de l'invention.
On this drawing:
  • Figure 1 shows, schematically in section, a keeper of the prior art;
  • FIGS. 1A and 1B show the deformations of the keeper of FIG. 1 in the event of a frontal impact from the vehicle;
  • Figures 2 to 4 show, schematically in section, three alternative embodiments of the invention.

Sur la figure 1, on voit qu'une gâche 1 de l'état de la technique est constituée d'une plaquette repliée de manière à former un U présentant deux branches 10 et 12 parallèles raccordées par un fond 11. La branche 10 est destinée à être fixée par des vis, non représentées sur le dessin, à la carrosserie d'un véhicule. Un pion 2 relie les extrémités libres des branches 10 et 12 du U. Ce pion 2 est constitué par une âme cylindrique métallique 38 solidarisée avec lesdites branches, par exemple par rivetage, et porte une bague 31 en matière plastique d'épaisseur e destinée à amortir les bruits de fermeture de la portière du véhicule, bague qui uniformément recouvre toute la surface du tube 38. Le rivetage du pion 2 peut s'effectuer notamment en engageant une tête tronconique 38a de l'âme 38 dans un alésage tronconique de la branche 12 et en effectuant un rivetage par matriçage de l'autre extrémité 38b de l'âme 38 dans un alésage de la branche 10. In Figure 1, we see that a keeper 1 of the prior art consists of a folded plate so as to form a U having two parallel branches 10 and 12 connected by a bottom 11. The branch 10 is intended to be fixed by screws, not shown in the drawing, to the body of a vehicle. A pin 2 connects the free ends of the branches 10 and 12 of the U. This pin 2 is constituted by a metallic cylindrical core 38 secured to said branches, for example by riveting, and carries a ring 31 of plastic material of thickness e intended for dampen the closing noises of the vehicle door, a ring which uniformly covers the entire surface of the tube 38. The riveting of the pin 2 can be carried out in particular by engaging a frustoconical head 38 a of the core 38 in a frustoconical bore of the branch 12 and by riveting by stamping the other end 38 b of the core 38 in a bore of the branch 10.

Lors de la fermeture de la portière du véhicule, la branche 12 non fixée à la carrosserie du véhicule et le pion 2 pénètrent dans une ouverture prévue dans le boítier de la serrure fixée à la portière ; le pion glisse dans une échancrure du pêne prévue à cet effet, puis le pêne est entraíné en rotation et maintenu en position par le cliquet de la serrure pour emprisonner ladite gâche, la serrure étant alors fermée.When the vehicle door is closed, the branch 12 not attached to the vehicle body and pin 2 enters a opening provided in the housing of the lock fixed to the door; the pawn slides into a notch in the bolt provided for this purpose, then the bolt is rotated and held in position by the pawl of the lock to trap said strike, the lock being then closed.

Le diamètre externe de la bague 31 en matière plastique, qui constitue le diamètre externe d du pion 2 de la gâche 1 est égal, au jeu de fonctionnement près, à la largeur de l'échancrure du pêne dans la zone de ladite échancrure où se trouve le pion lorsque la portière est fermée. Ce diamètre d est donc défini par le pêne de la serrure avec laquelle la gâche doit coopérer.The outer diameter of the plastic ring 31, which constitutes the external diameter d of the pin 2 of the keeper 1 is equal, to the clearance close to the width of the bolt notch in the area of said notch where the pawn is located when the door is closed. This diameter d is therefore defined by the bolt of the lock with which the keeper must cooperate.

Par ailleurs, la bague de matière plastique 31 doit avoir une épaisseur e suffisante pour amortir au mieux les bruits de fermeture de la portière du véhicule, tant au moment de la fermeture lorsque le pêne vient en contact avec la gâche, qu'après la fermeture lorsque le pêne est en contact avec la gâche et que ce contact est soumis aux vibrations dues au déplacement du véhicule.Furthermore, the plastic ring 31 must have a thickness e sufficient to dampen closing noises as well as possible the vehicle door, both at the time of closing when the bolt comes into contact with the keeper, only after closing when the bolt is in contact with the strike and that this contact is subjected to vibrations due to movement of the vehicle.

Ces dimensions d et e sont donc des dimensions déterminées que doit présenter la gâche. Or, en cas de choc frontal du véhicule, la gâche est soumise à des efforts pouvant entraíner des déformations conduisant à l'ouverture de la portière, ce que l'on désire éviter. La figure 1A montre un premier type de déformation sous l'action de la force F1 exercée sur le pion 2 par le pêne de serrure ; pour s'y opposer, l'invention propose de conserver un diamètre maximum pour la zone du pion 2, qui est adjacente à la branche 10. La figure 1B montre un deuxième type de déformation sous l'action de la force F2 exercée par une tôle 50 de la portière du véhicule ; pour s'y opposer, l'invention propose de faire en sorte que la branche 12 soit retenue par l'âme métallique du pion 2 soit par appui simple soit par un filetage.These dimensions d and e are therefore determined dimensions which the keeper must have. However, in the event of a frontal impact from the vehicle, the keeper is subjected to forces which can cause deformations leading to the opening of the door, which is to be avoided. FIG. 1A shows a first type of deformation under the action of the force F 1 exerted on the pin 2 by the lock bolt; to oppose it, the invention proposes to keep a maximum diameter for the area of the pin 2, which is adjacent to the branch 10. FIG. 1B shows a second type of deformation under the action of the force F 2 exerted by a sheet 50 of the vehicle door; to oppose it, the invention proposes to ensure that the branch 12 is retained by the metal core of the pin 2 either by simple support or by a thread.

Selon l'invention, et comme visible sur les figures 2 à 4, la bague en matière plastique d'épaisseur e prédéterminée ne recouvre qu'une zone réduite de l'âme correspondant à la zone Z au niveau de laquelle le pêne coopère avec le pion de la gâche. Cette zone Z est plus large que l'épaisseur du pêne de manière à tenir compte des dispersions géométriques courantes à ce niveau. According to the invention, and as can be seen in FIGS. 2 to 4, the plastic ring of predetermined thickness does not cover that a reduced zone of the core corresponding to zone Z at the level of which the bolt cooperates with the striker pin. This Z zone is more as wide as the thickness of the bolt so as to take account of dispersions current geometries at this level.

En se référant à l'exemple de réalisation de la figure 2, on voit que le pion 2 a un diamètre externe d et que l'âme 20 est globalement de diamètre d mais présente un dégagement circonférentiel 21 constituant une gorge de profondeur e remplie d'une matière plastique qui constitue la bague 30. Comme visible sur le dessin, le dégagement 21 s'étend axialement sur le tube 20 dans toute la zone Z. La fixation de l'âme 20 sur la plaquette de gâche s'effectue par engagement de sa tête tronconique 20c dans un alésage tronconique de la branche 10 et par rivetage de son extrémité opposée 20a dans un alésage approprié de la branche 12.Referring to the embodiment of Figure 2, we see that the pin 2 has an external diameter d and that the core 20 is generally of diameter d but has a circumferential clearance 21 constituting a groove of depth e filled with d 'a plastic which constitutes the ring 30. As visible in the drawing, the clearance 21 extends axially on the tube 20 throughout the zone Z. The fixing of the core 20 on the striker plate is effected by engagement of its frustoconical head 20 c in a frustoconical bore of the branch 10 and by riveting its opposite end 20 a in an appropriate bore of the branch 12.

Une telle disposition permet de constituer une âme, dont les extrémités sont de diamètre d, au lieu d'être de diamètre d-2e comme dans l'art antérieur, donc de résistance largement supérieure. Cet avantage est particulièrement important pour l'extrémité par laquelle l'âme 20 est fixée à la branche 10 solidarisée de la carrosserie du véhicule, du fait que cette zone est celle qui doit supporter, sous l'action du pêne, les efforts les plus importants lors des chocs, principalement lors des chocs frontaux. Mais, en outre, on a ménagé, entre la gorge 21 et la zone de rivetage 20a, une collerette 20b de diamètre externe d, collerette sur laquelle la branche 12 est en appui par le rivetage ; de la sorte, la déformation illustrée à la figure 1B ne peut se produire, ce qui améliore encore les performances de la gâche en cas de choc.Such an arrangement makes it possible to constitute a core, the ends of which are of diameter d, instead of being of diameter d-2e as in the prior art, therefore of much greater resistance. This advantage is particularly important for the end by which the core 20 is fixed to the branch 10 secured to the body of the vehicle, because this zone is the one which must withstand, under the action of the bolt, the most important during impacts, mainly during frontal impacts. However, in addition, there has been provided, between the groove 21 and the riveting zone 20 a , a flange 20 b of external diameter d, flange on which the branch 12 is supported by the riveting; in this way, the deformation illustrated in Figure 1B can not occur, which further improves the performance of the strike in the event of impact.

Dans l'exemple de réalisation de la figure 3, la branche 12 de la gâche qui n'est pas fixée à la carrosserie du véhicule, présente un collet fileté intérieurement 13 dans lequel est vissée une extrémité filetée 23 de l'âme 22 du pion 2. L'âme 22 est de diamètre d à son extrémité située au voisinage de la branche 10 fixée à la carrosserie du véhicule, cette extrémité se terminant par une tête de vis 23a de forme tronconique qui se loge dans un évidement de même forme pour ne pas faire saillie sur la branche 10 quand l'extrémité 23 de l'âme 22 du pion est vissée dans le collet 13, et présente un épaulement 24 au-delà duquel l'âme 22 présente un diamètre réduit à d-2e.In the exemplary embodiment of FIG. 3, the branch 12 of the keeper which is not fixed to the vehicle body, has an internally threaded collar 13 into which is screwed a threaded end 23 of the core 22 of the pin 2. The core 22 is of diameter d at its end located in the vicinity of the branch 10 fixed to the vehicle body, this end ending in a screw head 23 a of frustoconical shape which is housed in a recess of the same shape so as not to project from the branch 10 when the end 23 of the core 22 of the pin is screwed into the collar 13, and has a shoulder 24 beyond which the core 22 has a diameter reduced to d-2e.

Une bague 32 de matière plastique d'épaisseur e est mise en place dans toute la zone Z, qui se trouve entre l'épaulement 24 et l'extrémité filetée 23. Selon cette disposition, en cas de choc frontal du véhicule, la branche 12 n'a pas tendance à se déformer en se rapprochant de la branche 10 car elle est maintenue par le filetage 13/23 et, en outre, la zone de l'âme 22, qui est adjacente à la branche 10, a un fort diamètre d, puisque cette zone n'a pas été réduite en diamètre pour positionner de la matière plastique. Il s'en suit une amélioration significative de la résistance de la gâche et donc de la fiabilité de la fermeture de portière en cas de choc.A ring 32 of plastic material of thickness e is put in place in the whole zone Z, which is between the shoulder 24 and the threaded end 23. According to this provision, in the event of a frontal impact from the vehicle, branch 12 does not tend to deform while approaching the branch 10 because it is held by the thread 13/23 and, in addition, the zone of the core 22, which is adjacent to the branch 10, has a large diameter d, since this zone has not been reduced in diameter for positioning plastic. There follows one significant improvement in the resistance of the keeper and therefore in the reliability of door closing in the event of an impact.

Dans l'exemple de réalisation de la figure 4, l'âme 25 du pion 2 est semblable à celle de la figure 2 mais présente un diamètre un peu inférieur à d de façon que la bague 36 de matière plastique d'épaisseur e disposée dans le dégagement 26 de l'âme 25 puisse être prolongée par des fourreaux 35 et 37 de très faible épaisseur. Par une telle disposition, la matière plastique recouvre toute la surface latérale de l'âme, ce qui permet de proposer une gâche selon l'invention ayant le même aspect que les gâches de l'art antérieur tout en étant plus résistante. En effet, les fourreaux 35 et 37 ayant une très faible épaisseur, l'âme 25 du pion conserve au voisinage de la branche 10, c'est-à-dire dans sa zone de sollicitation maximum en cas de choc frontal du véhicule, un fort diamètre très voisin de la valeur d imposée par le dimensionnement du pêne. En outre, le dégagement 26 constitue une gorge, qui laisse subsister, du côté de la branche 12, au niveau du fourreau 37, une collerette 25a formant un appui pour la branche 12 ; la branche 10 présente un alésage tronconique où est positionnée la tête 25b tronconique de l'âme 25 ; la solidarisation du pion 2 avec la plaquette de la gâche 1 est assurée par un rivetage 25c. En cas de choc frontal du véhicule, la déformation de la branche 12 en direction de la branche 10 est empêchée en raison de la présence de la collerette 25a.In the embodiment of Figure 4, the core 25 of the pin 2 is similar to that of Figure 2 but has a diameter a little less than d so that the ring 36 of plastic material of thickness e arranged in the clearance 26 of the core 25 can be extended by sleeves 35 and 37 of very small thickness. By such an arrangement, the plastic material covers the entire lateral surface of the core, which makes it possible to propose a keeper according to the invention having the same appearance as the keepers of the prior art while being more resistant. Indeed, the sleeves 35 and 37 having a very small thickness, the core 25 of the pin retains, in the vicinity of the branch 10, that is to say in its zone of maximum stress in the event of a frontal impact from the vehicle, a large diameter very close to the value imposed by the dimensioning of the bolt. In addition, the clearance 26 constitutes a groove, which leaves, on the side of the branch 12, at the level of the sheath 37, a flange 25 a forming a support for the branch 12; the branch 10 has a frustoconical bore where the head 25 b frustoconical of the core 25 is positioned; the connection of the pin 2 with the plate of the keeper 1 is ensured by riveting 25 c . In the event of a frontal impact from the vehicle, the deformation of the branch 12 in the direction of the branch 10 is prevented due to the presence of the flange 25 a .

Claims (7)

Gâche pour serrure de portière de véhicule automobile constituée d'une part d'une plaquette repliée de manière à former un U présentant deux branches (10, 12) parallèles raccordées par un fond (11), l'une (10) des branches étant fixée sur un élément de la carrosserie du véhicule, et d'autre part, d'un pion cylindrique (2) de diamètre externe d reliant les extrémités libres des branches (10, 12) du U, ce pion (2) étant destiné à glisser dans une échancrure du pêne de la serrure, ledit pion (2) étant constitué d'une âme (20, 22, 25) métallique dont les extrémités sont solidarisées avec lesdites branches (10, 12) et d'une bague en matière plastique qui entoure ladite âme et présente une épaisseur e suffisante pour amortir les bruits de fermeture de la portière du véhicule, le diamètre externe dudit pion (2) étant égal à la largeur de l'échancrure du pêne dans la zone de ladite échancrure où se trouve le pion lorsque la portière est fermée, caractérisée par le fait que la bague en matière plastique (30, 32, 36) ne recouvre sensiblement que la zone (Z) du pion (2) dans laquelle le pêne est susceptible de coopérer avec le pion (2) de la gâche (1) quand la portière est fermée.Striker for motor vehicle door lock consisting on the one hand of a folded plate so as to form a U having two parallel branches (10, 12) connected by a bottom (11), one (10) of the branches being fixed to an element of the vehicle body, and on the other hand, a cylindrical pin (2) of external diameter d connecting the free ends of the branches (10, 12) of the U, this pin (2) being intended to slide in a notch in the bolt of the lock, said pin (2) consisting of a metal core (20, 22, 25) the ends of which are secured to said branches (10, 12) and a plastic ring which surrounds said core and has a thickness e sufficient to dampen door closing noises of the vehicle, the external diameter of said pin (2) being equal to the width of the notch of the bolt in the area of the said notch where the pin when the door is closed, characterized in that the ring made of plastic (30, 32, 36) only substantially covers the area (Z) of the pin (2) in which the bolt is likely to cooperate with the striker (1) pin (2) when the door is closed. Gâche selon la revendication 1, caractérisée par le fait que l'âme (20, 22, 25) présente dans sa zone (Z) un dégagement circonférentiel (21) de profondeur e rempli de matière plastique pour constituer la bague (30) du pion.Keep according to claim 1, characterized in that the core (20, 22, 25) has in its zone (Z) a clearance circumferential (21) of depth e filled with plastic material for constitute the ring (30) of the pin. Gâche selon l'une des revendications 1 ou 2, caractérisée par le fait que l'âme (20, 22) est de diamètre d à son extrémité adjacente à la branche (10) de la gâche (1) liée à la carrosserie du véhicule.Keep according to one of claims 1 or 2, characterized by the fact that the core (20, 22) is of diameter d at its end adjacent to the branch (10) of the keeper (1) linked to the body of the vehicle. Gâche selon l'une des revendications 1 à 3, caractérisée par le fait que l'âme (20) est de diamètre d à son extrémité destinée à être fixée sur la branche (12) de la gâche qui n'est pas solidarisée de la carrosserie du véhicule.Keep according to one of claims 1 to 3, characterized by the fact that the core (20) is of diameter d at its end intended for be attached to the leg (12) of the keeper which is not secured to the vehicle body. Gâche selon l'une des revendications 1 à 3, caractérisée par le fait que l'âme (22) du pion présente un épaulement (24) au-delà duquel elle a un diamètre réduit à d-2e.Keep according to one of claims 1 to 3, characterized by the fact that the core (22) of the pin has a shoulder (24) beyond from which it has a diameter reduced to d-2e. Gâche selon les revendications 2 et 5 prises simultanément, caractérisée par le fait que le dégagement au droit duquel est formée la bague (32) se prolonge par une extrémité filetée par laquelle le pion (2) est vissé dans un collet (13) ménagé sur la branche (12) de la gâche, qui n'est pas fixée à la carrosserie du véhicule.Keep according to claims 2 and 5 taken simultaneously, characterized in that the release to the right from which the ring (32) is formed is extended by a threaded end by which the pin (2) is screwed into a collar (13) formed on the strike plate (12), which is not attached to the body of the vehicle. Gâche selon la revendication 2, caractérisée par le fait que l'âme (25) a un diamètre un peu inférieur à d et le dégagement (26) de ladite âme (25) constitue une gorge dans laquelle est disposée la bague (36) de matière plastique d'épaisseur e, ladite bague (36) étant prolongée de part et d'autre par des fourreaux (35, 37) de très faible épaisseur, de sorte que la matière plastique recouvre l'âme (25) sur toute sa longueur entre les branches (10, 12) de la gâche (1).Keep according to claim 2, characterized in that the core (25) has a diameter slightly less than d and the clearance (26) of said core (25) constitutes a groove in which the ring is arranged (36) of plastic material of thickness e, said ring (36) being extended on both sides by sheaths (35, 37) of very low thickness, so that the plastic material covers the core (25) on its entire length between the arms (10, 12) of the keeper (1).
EP00400362A 1999-02-19 2000-02-09 Striker for a motor vehicle door lock Withdrawn EP1030007A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9902076A FR2790025B1 (en) 1999-02-19 1999-02-19 LOCK FOR MOTOR VEHICLE DOOR LOCK
FR9902076 1999-02-19

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EP1030007A1 true EP1030007A1 (en) 2000-08-23

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EP00400362A Withdrawn EP1030007A1 (en) 1999-02-19 2000-02-09 Striker for a motor vehicle door lock

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FR (1) FR2790025B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680902A (en) * 1971-01-04 1972-08-01 Atwood Vacuum Machine Co Shielded striker for a vehicle latch
FR2465054A1 (en) * 1979-09-13 1981-03-20 Tack & Gabel CLOSURE OF AUTOMOTIVE VEHICLE DOOR
US4911488A (en) * 1987-12-02 1990-03-27 Kiekert Gmbh & Co. Kommanditgesellschaft Motor-vehicle door latch with built-in switch
DE9015816U1 (en) * 1990-11-20 1991-04-11 Mertens Gmbh & Co, 4830 Guetersloh, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680902A (en) * 1971-01-04 1972-08-01 Atwood Vacuum Machine Co Shielded striker for a vehicle latch
FR2465054A1 (en) * 1979-09-13 1981-03-20 Tack & Gabel CLOSURE OF AUTOMOTIVE VEHICLE DOOR
US4911488A (en) * 1987-12-02 1990-03-27 Kiekert Gmbh & Co. Kommanditgesellschaft Motor-vehicle door latch with built-in switch
DE9015816U1 (en) * 1990-11-20 1991-04-11 Mertens Gmbh & Co, 4830 Guetersloh, De

Also Published As

Publication number Publication date
FR2790025A1 (en) 2000-08-25
FR2790025B1 (en) 2001-05-25

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