EP0507647A1 - Lock for the hood of a motor vehicle comprising means for self-centerung - Google Patents

Lock for the hood of a motor vehicle comprising means for self-centerung Download PDF

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Publication number
EP0507647A1
EP0507647A1 EP92400748A EP92400748A EP0507647A1 EP 0507647 A1 EP0507647 A1 EP 0507647A1 EP 92400748 A EP92400748 A EP 92400748A EP 92400748 A EP92400748 A EP 92400748A EP 0507647 A1 EP0507647 A1 EP 0507647A1
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EP
European Patent Office
Prior art keywords
fork
support element
lock
keeper
housing
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.)
Granted
Application number
EP92400748A
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German (de)
French (fr)
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EP0507647B1 (en
Inventor
Pascal Verneuil
Minh Au Truong
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.)
Renault SAS
Regie Nationale des Usines Renault
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Renault SAS
Regie Nationale des Usines Renault
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Application filed by Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of EP0507647A1 publication Critical patent/EP0507647A1/en
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Publication of EP0507647B1 publication Critical patent/EP0507647B1/en
Anticipated expiration legal-status Critical
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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

Definitions

  • the present invention relates to a lock for a vehicle in particular for a hood of the type comprising a movable part or bolt secured to said hood in an opening or closing movement thereof and a fixed or keeper part secured to an element of the body of vehicle, the bolt being constituted by a fork rotating about an axis secured to a support element fixed to said hood and comprising lateral slopes for entry into a strike box integrally carrying a nail disposed perpendicularly to the plane of the support element fork and able to be overlapped, during a translational movement, by a longitudinal notch of said fork support element in a direction of insertion, until the latter swivels in rotation to become integral with said keeper nail by hanging.
  • this type of lock is also intended for closing a vehicle tailgate.
  • French patent application No. 2 633 654 proposes to remedy this drawback by arranging in the strike housing a pair of wedge-shaped pads capable of sliding longitudinally against springs, by a push of the fork-holder element forming a bolt, when the hood is closed.
  • This device is not only complex and expensive because it requires the implementation of several parts to be assembled together, but moreover if there is a lateral offset between the bolt and the striker, this will result in a more or less pronounced depression.
  • one of the two sliding corners thus creating an asymmetry of lateral holding; in fact, this holding is directly linked to the spring pressure force exerted on each of the corners and to the angle of the contact surface between the latter and the fork-carrying element.
  • the object of the present invention is to remedy these drawbacks and to this end relates to a lock for a vehicle, in particular for a hood of the type comprising a movable part or bolt secured to said hood in an opening or closing movement of the latter and a part fixed or keeper secured to an element of the vehicle body, the bolt being constituted by a fork rotating about an axis secured to a support member fixed to said cover and comprising lateral entry slopes in a keeper case bearing integrally a nail arranged perpendicular to the plane of the fork support element and capable of being overlapped during a translational movement, by a longitudinal notch of said fork support element in a direction of insertion, until the latter swings in rotation in order to join said keeper nail by hooking, characterized in that the keeper housing comprises means of self-centering with respect to the fork support element when 'an initial adjustment or compensation for the possible eccentricity of these two elements between them during use. According to another characteristic of the invention, these means are constituted by fixed buffers
  • the lock 1 designated as a whole and shown in the figures, comprises a support element 2 fixed to the tailgate of the rear hood of a vehicle not shown, by means of a stirrup 3, from the middle of which extends in a cantilever downward said support element 2 on which is arranged a bolt constituted, in this type of lock, by a rotating fork 4 capable of turning in operation on an axis 0 secured to the support element 2 of the fork 4.
  • the support element 2 has lateral slopes 2a, 2b facilitating its introduction in a housing 5 of a keeper 6 integrally carrying a nail 7 disposed perpendicularly to the plane of the support element 2 of fork 4 and capable of being overlapped, during a translational movement, by a longitudinal notch 8 of said support element 2 in a direction of insertion, until the fork 4, carried by the element 2, rocks in rotation about the axis 0 to join said nail 7 of striker 6 by hooking.
  • the keeper box 5 is mounted integrally on the vehicle body (not shown), on the edge of a luggage compartment for example, on which the hood abuts when it is closed.
  • the keeper box 5 is secured to a fixing plate 9 comprising three slots 10 crossed during assembly by screws (not shown) capable of being screwed into corresponding threaded holes (not shown) of an inner rear wall of the trunk of the vehicle.
  • the keeper box 5 6 is defined by a parallelepiped volume open at its upper part to allow the introduction of the support element 2 of fork 4 and whose rectangular section is delimited by two lateral flanks 5a, 5b and two end walls 5c, 5d.
  • the lateral flanks 5a, 5b are crossed perpendicularly by the nail 7 fixed in overhang on the fixing plate 9 of the housing 5.
  • the strike box 6 comprises means of self-centering with respect to the support element 2 of the fork 4 during an initial adjustment or compensation for the possible eccentricity of these two elements 2, 6 between them in use.
  • These means consist of fixed buffers 11, 12 arranged opposite each other respectively on each of the opposite end walls 5c, 5d of the housing 5. These buffers 11, 12 are identical and are obtained during an operation unique plastic molding.
  • Each of the buffers 11, 12 is constituted, in the present embodiment, by a hollow element substantially forming a U whose free ends of the branches 11a 11b, 12a 12b are directed in a direction opposite to that of introduction of the element support 2 of fork 4, the branches 11b and 12b facing the axis XX ′ of the lock 1 being elastically deformable relative to the others, respectively 11a, 12a fixed on the internal end walls 5c and 5d of the housing 5.
  • Such elastic stops 11, 12 could be sufficient for them to fulfill their role as mentioned above, but in order to reinforce their elastic quality and their reliability over time, the branches 11a, 11b and 12a, 12b of each stopper 11, 12 are combined two by two near their free end by cylindrical rubber elements added respectively 13, 14, acting freely and held in place by elastic clamping between each pair of branches 11a, 11b or 12a, 12b in housing parts 13a, 14a formed respectively at said ends of the branches 11a, 11b or 12a, 12b and forming part of a cylinder , corresponding to the rubber elements to be clamped.
  • Each of the buffers 11 or 12 comprises removable fixing means cooperating with the internal end walls 5c, 5d of the keeper box 5 and which are constituted by a lug 15 or 16 provided with a head 17 or 18 and produced at the lower part of each fixed branch 11a or 12a of each stopper 11, 12.
  • An anchoring spoiler 19 or 20 is also produced at the upper part of said fixed branch 11a or 12a.
  • each stopper 11 or 12 is carried out by introducing said lug 15 or 16 is by its head 17 or 18 to the enlarged upper part of a buttonhole-shaped opening 21 or 22 formed in the internal end lateral wall 5c or 5d of the keeper box 5 5, then brought to its lower part by sliding the head 17 or 18 behind a narrowed part of said buttonhole 21, 22 until the spoiler 19 or 20 snaps elastically at the upper part of the light 21 or 22.
  • corresponding inclined inlet slopes 23, 24 are respectively provided at the free ends of the deformable branches 11b, 12b elastically of each stopper 11, 12, turned towards the axis XX ′ of the lock.
  • Each of the slopes 23, 24 is extended by faces 25, 26 parallel to said axis XX ′ of the lock 1.
  • the slopes 2a, 2b of the support element 2 are capable of cooperating with the slopes 23, 24 of the stops 11, 12 when the cover is closed.
  • the keeper 6 and the rotating fork assembly 4 disposed on its support 2 are mounted separately respectively on the edge of the trunk of the vehicle and on the hood along approximately the same axis XX ′, so as to subsequently allow a trajectory of the support element 2, substantially parallel to its notch 8 to ensure its progressive insertion into the housing 5 of strike plate 6.
  • said housing 6 is held in position by screws (not shown) passing through the slots 10, oblong in the transverse direction, but these screws are not permanently tightened in order to allow adjustment in translation of the housing 5.
  • the lights 10 allow a lateral movement thereof, of the order of 10 mm for example, caused precisely by the reciprocal contacting of the slopes 2a of the support element 2 of the fork 4 and the slopes 23, 24 of each elastic stopper 11, 12, ensuring in this way self-centering of said keeper box 5 relative to said support element 2, after which the screws are definitively blocked to immobilize the keeper 6.
  • the hardness of the rubber cylinders 13, 14 is 80 SH and the admissible crushing value is of the order of 1 millimeter.
  • a compression of 0.3 to 0.8 mm ensures excellent rigidity.
  • the slopes 2a, 2b of the support element 2 of the fork 4 form an angle ⁇ 1 of 27 ° 30 with the axis XX ′ and the entry slopes 23, 24 of the stops 11, 12 of the strike 6 form an angle ⁇ of 30 ° with the same axis.
  • the draft thus formed of 2 ° 30 facilitates the coming into contact of the elements present.

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  • Superstructure Of Vehicle (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention relates to the locks of vehicles. This lock, especially for the bonnet, comprises a keeper (6), into a housing (5) of which is capable of engaging, during closing, a bolt-supporting element (2), in this particular case a rotary fork (4), cooperating by catching with a fixed stud (7) of the keeper (6). The housing (5) of the keeper (6) comprises self-centring and offset-compensating means which consist of fixed abutments (11, 12) solid with said housing (5) and elastically deformable in the transverse direction of the lock. The invention is used on motor vehicles. <IMAGE>

Description

La présente invention concerne une serrure pour véhicule notamment pour capot du type comprenant une partie mobile ou pêne solidaire dudit capot dans un mouvement d'ouverture ou de fermeture de celui-ci et une partie fixe ou gâche solidaire d'un élément de la caisse de véhicule, le pêne étant constitué par une fourchette tournant autour d'un axe solidaire d'un élément support fixé audit capot et comportant des pentes latérales d'entrée dans un boîtier de gâche portant solidairement un clou disposé perpendiculairement au plan de l'élément support de fourchette et apte à être chevauché, au cours d'un mouvement de translation, par une échancrure longitudinale dudit élément support de fourchette dans un sens d'insertion, jusqu'à ce que cette dernière bascule en rotation pour se solidariser dudit clou de gâche par accrochage.The present invention relates to a lock for a vehicle in particular for a hood of the type comprising a movable part or bolt secured to said hood in an opening or closing movement thereof and a fixed or keeper part secured to an element of the body of vehicle, the bolt being constituted by a fork rotating about an axis secured to a support element fixed to said hood and comprising lateral slopes for entry into a strike box integrally carrying a nail disposed perpendicularly to the plane of the support element fork and able to be overlapped, during a translational movement, by a longitudinal notch of said fork support element in a direction of insertion, until the latter swivels in rotation to become integral with said keeper nail by hanging.

Bien entendu, ce type de serrure est également destinée à la fermeture d'un hayon arrière de véhicule.Of course, this type of lock is also intended for closing a vehicle tailgate.

Dans les serrures connues de ce type, un inconvénient majeur réside dans le fait qu'il est difficile d'obtenir une immobilisation correcte du capot en fermeture, dans une direction transversale en raison des tolérances de montage qui, cumulées, peuvent provoquer un tel décalage transversal, de l'ordre de plusieurs millimètres, entre l'axe de la gâche et l'axe du pêne, rendant la fermeture difficile voire impossible.In known locks of this type, a major drawback lies in the fact that it is difficult to obtain correct immobilization of the cover when closing, in a transverse direction due to the mounting tolerances which, taken together, can cause such a shift. transverse, of the order of several millimeters, between the striker axis and the bolt axis, making closing difficult or even impossible.

La demande de brevet français n° 2 633 654 propose de remédier à cet inconvénient en disposant dans le boîtier de gâche une paire de patins en forme de coin apte à coulisser longitudinalement à l'encontre de ressorts, par une poussée de l'élément porte-fourchette formant pêne, à la fermeture du capot.French patent application No. 2 633 654 proposes to remedy this drawback by arranging in the strike housing a pair of wedge-shaped pads capable of sliding longitudinally against springs, by a push of the fork-holder element forming a bolt, when the hood is closed.

Ces patins sont montés dans le boîtier de gâche, en saillie et, selon l'excentrage du pêne par rapport à la gâche, sont sollicités plus ou moins en coulissement longitudinal, permettant ainsi le rattrapage d'un jeu éventuel d'un côté ou de l'autre selon l'excentrage et le blocage transversal dudit pêne par rapport au boîtier.These pads are mounted in the strike box, projecting and, depending on the eccentricity of the bolt relative to the strike, are biased more or less in longitudinal sliding, thus allowing the correction of a possible play on one side or the other according to the offset and the transverse blocking of said bolt relative to the housing.

Ce dispositif est non seulement complexe et onéreux car il nécessite la mise en oeuvre de plusieurs pièces à assembler entre elles, mais de plus s'il existe un décalage latéral entre le pêne et la gâche, cela se traduira par un enfoncement plus ou moins prononcé de l'un des deux coins coulissants créant ainsi une dissymétrie de tenue latérale; en effet, cette tenue est directement liée à l'effort de pression du ressort s'exerçant sur chacun des coins et à l'angle de la surface de contact entre celui-ci et l'élément porte fourchette.This device is not only complex and expensive because it requires the implementation of several parts to be assembled together, but moreover if there is a lateral offset between the bolt and the striker, this will result in a more or less pronounced depression. one of the two sliding corners thus creating an asymmetry of lateral holding; in fact, this holding is directly linked to the spring pressure force exerted on each of the corners and to the angle of the contact surface between the latter and the fork-carrying element.

La présente invention a pour but de remédier à ces inconvénients et concerne à cet effet une serrure pour véhicule notamment pour capot du type comprenant une partie mobile ou pêne solidaire dudit capot dans un mouvement d'ouverture ou de fermeture de celui-ci et une partie fixe ou gâche solidaire d'un élément de la caisse de véhicule, le pêne étant constitué par une fourchette tournant autour d'un axe solidaire d'un élément support fixé audit capot et comportant des pentes latérales d'entrée dans un boîtier de gâche portant solidairement un clou disposé perpendiculairement au plan de l'élément support de fourchette et apte à être chevauché au cours d'un mouvement de translation, par une échancrure longitudinale dudit élément support de fourchette dans un sens d'insertion, jusqu'à ce que cette dernière bascule en rotation pour se solidariser dudit clou de gâche par accrochage caractérisée en ce que le boîtier de gâche comporte des moyens d'autocentrage par rapport à l'élément support de fourchette lors d'un réglage initial ou de compensation de l'excentration éventuelle de ces deux éléments entre eux en cours d'utilisation. Selon une autre caractéristique de l'invention, ces moyens sont constitués par des butoirs fixes disposés vis-à-vis à chacune des extrémités opposées du boîtier de gâche et déformable élastiquement dans le sens transversal de celle-ci au passage de l'élément support de fourchette tournante.The object of the present invention is to remedy these drawbacks and to this end relates to a lock for a vehicle, in particular for a hood of the type comprising a movable part or bolt secured to said hood in an opening or closing movement of the latter and a part fixed or keeper secured to an element of the vehicle body, the bolt being constituted by a fork rotating about an axis secured to a support member fixed to said cover and comprising lateral entry slopes in a keeper case bearing integrally a nail arranged perpendicular to the plane of the fork support element and capable of being overlapped during a translational movement, by a longitudinal notch of said fork support element in a direction of insertion, until the latter swings in rotation in order to join said keeper nail by hooking, characterized in that the keeper housing comprises means of self-centering with respect to the fork support element when 'an initial adjustment or compensation for the possible eccentricity of these two elements between them during use. According to another characteristic of the invention, these means are constituted by fixed buffers disposed opposite each of the opposite ends of the strike box and elastically deformable in the transverse direction thereof when the support element passes. of rotating fork.

De cette manière, les inconvénients précités sont résolus en conférant à la serrure une fiabilité plus grande puisque plus simple de conception, ceci avec une énergie consommée à l'engâchage plus faible.In this way, the aforementioned drawbacks are solved by giving the lock greater reliability since it is simpler in design, this with a lower energy consumption during the engagement.

D'autres caractéristiques de l'invention apparaîtront au cours de la description qui va suivre donnée à titre d'exemple en regard du dessin annexé sur lequel :

  • la figure 1 est une vue de dessus d'un boîtier de gâche d'une serrure selon l'invention, montrant schématiquement le positionnement d'un élément support de pêne, correspondant pour partie avant accouplement et pour partie après accouplement dudit pêne,
  • la figure 2 est une vue en coupe selon la ligne II-II de la figure 1 montrant également schématiquement le positionnement d'un élément support de pêne avant et après accouplement de celui-ci dans un boîtier de gâche, d'une serrure selon l'invention, et
  • la figure 3 est une vue de côté d'un boîtier de gâche selon la figure 2.
Other characteristics of the invention will appear during the description which follows, given by way of example with reference to the appended drawing in which:
  • FIG. 1 is a top view of a striker housing of a lock according to the invention, schematically showing the positioning of a bolt support element, corresponding partly before coupling and partly after coupling of said bolt,
  • Figure 2 is a sectional view along line II-II of Figure 1 also schematically showing the positioning of a bolt support element before and after coupling thereof in a strike housing, a lock according to l invention, and
  • FIG. 3 is a side view of a strike box according to FIG. 2.

La serrure 1 désignée dans son ensemble et représentée sur les figures, comporte un élément support 2 fixé au hayon du capot arrière d'un véhicule non représenté, par l'intermédiaire d'un étrier 3, à partir du milieu duquel s'étend en porte-à-faux vers le bas ledit élément support 2 sur lequel est disposé un pêne constitué, dans ce type de serrure, par une fourchette tournante 4 susceptible de tourner en fonctionnement sur un axe 0 solidaire de l'élément support 2 de fourchette 4. De manière connue, l'élément support 2 comporte des pentes latérales 2a, 2b facilitant son introduction dans un boîtier 5 d'une gâche 6 portant solidairement un clou 7 disposé perpendiculairement au plan de l'élément support 2 de fourchette 4 et apte à être chevauché, au cours d'un mouvement de translation, par une échancrure longitudinale 8 dudit élément support 2 dans un sens d'insertion, jusqu'à ce que la fourchette 4, portée par l'élément 2, bascule en rotation autour de l'axe 0 pour se solidariser dudit clou 7 de gâche 6 par accrochage.The lock 1 designated as a whole and shown in the figures, comprises a support element 2 fixed to the tailgate of the rear hood of a vehicle not shown, by means of a stirrup 3, from the middle of which extends in a cantilever downward said support element 2 on which is arranged a bolt constituted, in this type of lock, by a rotating fork 4 capable of turning in operation on an axis 0 secured to the support element 2 of the fork 4. In known manner, the support element 2 has lateral slopes 2a, 2b facilitating its introduction in a housing 5 of a keeper 6 integrally carrying a nail 7 disposed perpendicularly to the plane of the support element 2 of fork 4 and capable of being overlapped, during a translational movement, by a longitudinal notch 8 of said support element 2 in a direction of insertion, until the fork 4, carried by the element 2, rocks in rotation about the axis 0 to join said nail 7 of striker 6 by hooking.

Tout comme l'élément support 2 de fourchette tournante 4 est solidaire du capot constituant une partie mobile lors d'un mouvement d'ouverture ou de fermeture, le boîtier 5 de gâche 6 est monté solidairement sur la caisse du véhicule (non représenté), au bord d'un coffre à bagages par exemple, sur lequel vient buter le capot lors de sa fermeture.Just as the support element 2 of the rotating fork 4 is integral with the cover constituting a movable part during an opening or closing movement, the keeper box 5 is mounted integrally on the vehicle body (not shown), on the edge of a luggage compartment for example, on which the hood abuts when it is closed.

Comme le montre de manière particulièrement claire la figure 2, le boîtier 5 de gâche 6 est solidaire d'une plaque de fixation 9 comportant trois lumières 10 traversées au montage par des vis (non représentées) aptes à se visser dans des trous filetés correspondants (non représentés) d'une paroi interne arrière du coffre du véhicule.As shown in a particularly clear manner in FIG. 2, the keeper box 5 is secured to a fixing plate 9 comprising three slots 10 crossed during assembly by screws (not shown) capable of being screwed into corresponding threaded holes ( not shown) of an inner rear wall of the trunk of the vehicle.

Le boîtier 5 de gâche 6 est défini par un volume parallélépipédique ouvert à sa partie supérieure pour permettre l'introduction de l'élément support 2 de fourchette 4 et dont la section rectangulaire est délimitée par deux flancs latéraux 5a, 5b et deux parois d'extrémités 5c, 5d. Les flancs latéraux 5a, 5b sont traversés de manière perpendiculaire par le clou 7 fixé en porte-à-faux sur la plaque de fixation 9 du boîtier 5.The keeper box 5 6 is defined by a parallelepiped volume open at its upper part to allow the introduction of the support element 2 of fork 4 and whose rectangular section is delimited by two lateral flanks 5a, 5b and two end walls 5c, 5d. The lateral flanks 5a, 5b are crossed perpendicularly by the nail 7 fixed in overhang on the fixing plate 9 of the housing 5.

Selon l'invention, le boîtier de gâche 6 comporte des moyens d'autocentrage par rapport à l'élément support 2 de fourchette 4 lors d'un réglage initial ou de compensation de l'excentration éventuelle de ces deux éléments 2, 6 entre eux en cours d'utilisation.According to the invention, the strike box 6 comprises means of self-centering with respect to the support element 2 of the fork 4 during an initial adjustment or compensation for the possible eccentricity of these two elements 2, 6 between them in use.

Ces moyens sont constitués par des butoirs fixes 11, 12 disposés en vis-à-vis respectivement sur chacune des parois d'extrémités opposées 5c, 5d du boîtier 5. Ces butoirs 11, 12 sont identiques et sont obtenus au cours d'une opération unique de moulage d'une matière plastique.These means consist of fixed buffers 11, 12 arranged opposite each other respectively on each of the opposite end walls 5c, 5d of the housing 5. These buffers 11, 12 are identical and are obtained during an operation unique plastic molding.

Chacun des butoirs 11, 12 est constitué, dans le présent exemple de réalisation, par un élément creux formant sensiblement un U dont les extrémités libres des branches 11a 11b, 12a 12b sont dirigées dans une direction opposée à celle d'introduction de l'élément support 2 de fourchette 4, les branches 11b et 12b tournées vers l'axe XX′ de la serrure 1 étant déformables élastiquement par rapport aux autres, respectivement 11a, 12a fixées sur les parois internes d'extrémité 5c et 5d du boîtier 5.Each of the buffers 11, 12 is constituted, in the present embodiment, by a hollow element substantially forming a U whose free ends of the branches 11a 11b, 12a 12b are directed in a direction opposite to that of introduction of the element support 2 of fork 4, the branches 11b and 12b facing the axis XX ′ of the lock 1 being elastically deformable relative to the others, respectively 11a, 12a fixed on the internal end walls 5c and 5d of the housing 5.

De tels butoirs élastiques 11, 12 pourraient suffire pour qu'ils remplissent leur rôle tel que précité, mais afin de renforcer leur qualité élastique et leur fiabilité dans le temps les branches 11a, 11b et 12a, 12b de chaque butoir 11, 12 sont réunies deux à deux à proximité de leur extrémité libre par des éléments de caoutchouc cylindriques rapportés respectivement 13, 14, agissant librement et maintenus en place par serrage élastique entre chaque paire de branches 11a, 11b ou 12a, 12b dans des parties de logement 13a, 14a ménagées respectivement aux dites extrémités des branches 11a, 11b ou 12a, 12b et s'inscrivant dans un cylindre, correspondant aux éléments de caoutchouc à enserrer.Such elastic stops 11, 12 could be sufficient for them to fulfill their role as mentioned above, but in order to reinforce their elastic quality and their reliability over time, the branches 11a, 11b and 12a, 12b of each stopper 11, 12 are combined two by two near their free end by cylindrical rubber elements added respectively 13, 14, acting freely and held in place by elastic clamping between each pair of branches 11a, 11b or 12a, 12b in housing parts 13a, 14a formed respectively at said ends of the branches 11a, 11b or 12a, 12b and forming part of a cylinder , corresponding to the rubber elements to be clamped.

Chacun des butoirs 11 ou 12 comporte des moyens de fixation amovibles coopérant avec les parois internes d'extrémité 5c, 5d du boîtier 5 de gâche 6 et qui sont constitués par un ergot 15 ou 16 muni d'une tête 17 ou 18 et réalisés à la partie inférieure de chaque branche fixe 11a ou 12a de chaque butoir 11, 12. Un becquet d'ancrage 19 ou 20 est également réalisé à la partie supérieure de ladite branche fixe 11a ou 12a. Le montage de chaque butoir 11 ou 12 s'effectue en introduisant ledit ergot 15 ou 16 est par sa tête 17 ou 18 à la partie supérieure élargie d'une ouverture en forme de boutonnière 21 ou 22 ménagée dans la paroi latérale interne d'extrémité 5c ou 5d du boîtier 5 de gâche 6, puis amené à sa partie inférieure par coulissement de la tête 17 ou 18 derrière une partie rétrécie de ladite boutonnière 21, 22 jusqu'à ce que le becquet 19 ou 20 s'encliquette élastiquement à la partie supérieure de la lumière 21 ou 22.Each of the buffers 11 or 12 comprises removable fixing means cooperating with the internal end walls 5c, 5d of the keeper box 5 and which are constituted by a lug 15 or 16 provided with a head 17 or 18 and produced at the lower part of each fixed branch 11a or 12a of each stopper 11, 12. An anchoring spoiler 19 or 20 is also produced at the upper part of said fixed branch 11a or 12a. The mounting of each stopper 11 or 12 is carried out by introducing said lug 15 or 16 is by its head 17 or 18 to the enlarged upper part of a buttonhole-shaped opening 21 or 22 formed in the internal end lateral wall 5c or 5d of the keeper box 5 5, then brought to its lower part by sliding the head 17 or 18 behind a narrowed part of said buttonhole 21, 22 until the spoiler 19 or 20 snaps elastically at the upper part of the light 21 or 22.

De manière à faciliter l'introduction de l'élément support 2 de fourchette tournante 4 dans la gâche 6 par ses pentes latérales 2a 2b, des pentes d'entrée inclinées correspondantes 23, 24 sont respectivement ménagées aux extrémités libres des branches 11b, 12b déformables élastiquement de chaque butoir 11, 12, tournées vers l'axe XX′ de la serrure. Chacune des pentes 23, 24 est prolongée par des faces 25, 26 parallèles audit axe XX′ de la serrure 1. Les pentes 2a, 2b de l'élément support 2 sont susceptibles coopérer avec les pentes 23, 24 des butoirs 11, 12 lors de la fermeture du capot.In order to facilitate the introduction of the support element 2 of the rotating fork 4 into the keeper 6 by its lateral slopes 2a 2b, corresponding inclined inlet slopes 23, 24 are respectively provided at the free ends of the deformable branches 11b, 12b elastically of each stopper 11, 12, turned towards the axis XX ′ of the lock. Each of the slopes 23, 24 is extended by faces 25, 26 parallel to said axis XX ′ of the lock 1. The slopes 2a, 2b of the support element 2 are capable of cooperating with the slopes 23, 24 of the stops 11, 12 when the cover is closed.

Le montage de la serrure 1 décrite ci-dessus est le suivant.The assembly of the lock 1 described above is as follows.

Bien entendu, la gâche 6 et l'ensemble fourchette tournante 4 disposée sur son support 2 sont montés séparément respectivement sur le bord du coffre du véhicule et sur le capot suivant approximativement le même axe XX′, de manière à permettre ultérieurement une trajectoire de l'élément support 2, sensiblement parallèle à son échancrure 8 pour assurer son insertion progressive dans le boîtier 5 de gâche 6.Of course, the keeper 6 and the rotating fork assembly 4 disposed on its support 2 are mounted separately respectively on the edge of the trunk of the vehicle and on the hood along approximately the same axis XX ′, so as to subsequently allow a trajectory of the support element 2, substantially parallel to its notch 8 to ensure its progressive insertion into the housing 5 of strike plate 6.

Initialement, au montage, ledit boîtier 6 est maintenu en position par des vis (non représentées) traversant les lumières 10, oblongues dans le sens transversal, mais ces vis ne sont pas serrées définitivement afin de permettre le réglage en translation du boîtier 5. En effet, les lumières 10 autorisent un mouvement latéral de celui-ci, de l'ordre de 10 mm par exemple, provoqué précisément par la mise en contact réciproque des pentes 2a de l'élément support 2 de fourchette 4 et les pentes 23, 24 de chaque butoir élastique 11, 12, assurant de cette manière un autocentrage dudit boîtier 5 de gâche 6 par rapport audit élément support 2, à la suite de quoi les vis sont définitivement bloquées pour immobiliser la gâche 6.Initially, during assembly, said housing 6 is held in position by screws (not shown) passing through the slots 10, oblong in the transverse direction, but these screws are not permanently tightened in order to allow adjustment in translation of the housing 5. In Indeed, the lights 10 allow a lateral movement thereof, of the order of 10 mm for example, caused precisely by the reciprocal contacting of the slopes 2a of the support element 2 of the fork 4 and the slopes 23, 24 of each elastic stopper 11, 12, ensuring in this way self-centering of said keeper box 5 relative to said support element 2, after which the screws are definitively blocked to immobilize the keeper 6.

En cours de fonctionnement, il peut se produire des excentrages des pièces constitutives de la serrure 1 entre elles, dues aux variations de géométrie de la carrosserie du véhicule dans le temps ou à un effort déséquilibré exercé sur le capot. Le système selon l'invention permet de compenser ces excentrages grâce à la déformation élastique transversale des butoirs, aptes à être plus ou moins comprimés par l'intermédiaire des cylindres en caoutchouc 13, 14 jouant également un rôle amortisseur de vibrations contribuant à une baisse de niveau sonore de l'ensemble du véhicule.During operation, there may be offsets of the component parts of the lock 1 between them, due to variations in geometry of the vehicle body over time or to an unbalanced force exerted on the hood. The system according to the invention makes it possible to compensate for these offsets by virtue of the transverse elastic deformation of the bumpers, capable of being more or less compressed by means of the rubber cylinders 13, 14 also playing a vibration-absorbing role contributing to a reduction in noise level of the entire vehicle.

On peut également noter que le contact entre les butoirs 11, 12 et les champs 2c, 2d de l'élément support 2, après insertion dans la gâche 6, s'effectue par l'intermédiaire de surfaces parallèles, respectivement 2c, 2d et 25, 26, ce qui permet de ne pas avoir d'augmentation d'effort en fonction d'une variation de pénétration de l'élément support 2 de fourchette 4 dans le boîtier 5 de gâche 6.It can also be noted that the contact between the stops 11, 12 and the fields 2c, 2d of the support element 2, after insertion into the keeper 6, takes place by means of parallel surfaces, respectively 2c, 2d and 25 , 26, which makes it possible not to have an increase in force as a function of a variation in penetration of the support element 2 of fork 4 in the housing 5 of keeper 6.

Les seules variations d'effort d'engâchage étant dues aux seules dispersions géométriques de largeur de l'élément 2 et du boîtier 5 qui sont maîtrisées grâce à l'invention.The only variations in the engagement force being due to the sole geometric dispersions of width of the element 2 and of the housing 5 which are controlled thanks to the invention.

A titre d'exemple de réalisation, la dureté des cylindres en caoutchouc 13, 14 est de 80 SH et la valeur d'écrasement admissible est de l'ordre de 1 millimètre. Ainsi, une compression de 0,3 à 0,8 mm assure une excellente rigidité.As an exemplary embodiment, the hardness of the rubber cylinders 13, 14 is 80 SH and the admissible crushing value is of the order of 1 millimeter. Thus, a compression of 0.3 to 0.8 mm ensures excellent rigidity.

A titre d'exemple également les pentes 2a, 2b de l'élément support 2 de fourchette 4 forment un angle α1 de 27°30 avec l'axe XX′ et les pentes d'entrées 23, 24 des butoirs 11, 12 de la gâche 6 forment un angle α de 30° avec le même axe. La dépouille ainsi formée de 2°30 facilite l'entrée en contact des éléments en présence.Also by way of example, the slopes 2a, 2b of the support element 2 of the fork 4 form an angle α1 of 27 ° 30 with the axis XX ′ and the entry slopes 23, 24 of the stops 11, 12 of the strike 6 form an angle α of 30 ° with the same axis. The draft thus formed of 2 ° 30 facilitates the coming into contact of the elements present.

Claims (6)

Serrure (1) pour véhicule notamment pour capot du type comprenant une partie mobile ou pêne solidaire dudit capot dans un mouvement d'ouverture ou de fermeture de celui-ci et une partie fixe ou gâche (6) solidaire d'un élément de la caisse du véhicule, le pêne étant constitué par une fourchette (4) tournant autour d'un axe (5) solidaire d'un élément support (2) fixé audit capot et comportant des pentes latérales (2a, 2b) d'entrée dans un boîtier (5) de gâche (6) portant solidairement un clou (7) disposé perpendiculairement au plan de l'élément support (2) de fourchette (4) et apte à être chevauché au cours d'un mouvement de translation, par une échancrure longitudinale (8) dudit élément support (2) de fourchette (4) dans un sens d'insertion, jusqu'à ce que cette dernière bascule en rotation pour se solidariser dudit clou (7) de gâche (6) par accrochage caractérisée en ce que le boîtier (5) de gâche (6) comporte des moyens d'autocentrage par rapport à l'élément support (2) de fourchette (4) lors d'un réglage initial ou de compensation de l'excentration éventuelle de ces deux éléments (2, 6) entre eux en cours d'utilisation, constitués par des butoirs fixes (11, 12) disposés en vis-à-vis à chacune des extrémités opposées (5c, 5d) du boîtier (5) de gâche (6) et déformable élastiquement dans le sens transversal de celle-ci au passage de l'élément support (2) de fourchette tournante (4).Lock (1) for a vehicle, in particular for a hood of the type comprising a movable part or bolt secured to said hood in an opening or closing movement thereof and a fixed or keeper part (6) secured to an element of the body of the vehicle, the bolt being constituted by a fork (4) rotating about an axis (5) integral with a support element (2) fixed to said cover and comprising lateral slopes (2a, 2b) entering a housing (5) keeper (6) integrally carrying a nail (7) arranged perpendicular to the plane of the support element (2) of fork (4) and able to be overlapped during a translational movement, by a longitudinal notch (8) of said support element (2) of fork (4) in an insertion direction, until the latter rocks in rotation in order to join said nail (7) of strike plate (6) by attachment, characterized in that the keeper housing (5) (6) includes means of self-centering with respect to the fork support element (2) (4) during an initial adjustment or compensation for the possible eccentricity of these two elements (2, 6) between themselves during use, constituted by fixed buffers (11, 12 ) arranged opposite each opposite end (5c, 5d) of the keeper housing (5) (6) and elastically deformable in the transverse direction thereof when the support element (2) passes rotating fork (4). Serrure selon la revendication 1, caractérisée en ce que chaque butoir (11, 12) est constitué par un élément creux formant sensiblement un U dont les extrémités libres des branches (11a, 11b; 12 a, 12 b) sont dirigées dans une direction opposée à celle d'introduction de l'élément support (2) de fourchette (4), l'une desdites branches (11b, 12b) tournée vers l'axe (XX′) de la serrure étant déformable élastiquement par rapport à l'autre fixée sur une paroi interne d'extrémité (5c, 5d) du boîtier (5) de gâche (6).Lock according to claim 1, characterized in that each stopper (11, 12) is constituted by a hollow element substantially forming a U whose ends free branches (11a, 11b; 12 a, 12 b) are directed in a direction opposite to that of introduction of the support element (2) of fork (4), one of said branches (11b, 12b) turned towards the axis (XX ′) of the lock being elastically deformable relative to the other fixed on an internal end wall (5c, 5d) of the keeper housing (5) (6). Serrure selon la revendication 2 caractérisée en ce que les branches (11a, 11b; 12a, 12b) de chaque butoir (11, 12) sont réunies deux à deux à proximité de leur extrémité libre par un élément en caoutchouc cylindrique rapporté, (13, 14) agissant librement et maintenu en place dans des parties de logement (13a 14a) ménagées auxdites extrémités des branches (11a, 11 b; 12 a, 12b) et s'inscrivant dans un cylindre correspondant.Lock according to claim 2, characterized in that the branches (11a, 11b; 12a, 12b) of each stopper (11, 12) are joined in pairs near their free end by an attached cylindrical rubber element, (13, 14) acting freely and held in place in housing parts (13a 14a) formed at said ends of the branches (11a, 11b; 12a, 12b) and forming part of a corresponding cylinder. Serrure selon la revendication 2, caractérisée en ce que chaque butoir (11, 12) comporte des moyens de fixation amovibles coopérant avec les parois internes d'extrémité (5c, 5d) du boîtier (5) de gâche (6), constitués par un ergot (15, 16) à tête (17, 18) réalisé à la partie inférieure de la branche fixe (11a, 12a) dudit butoir (11, 12) et d'un becquet d'ancrage (19, 20) réalisé à sa partie supérieure, ledit ergot (15, 16) étant introduit par sa tête (17, 18) à la partie supérieure élargie d'une ouverture en forme de boutonnière (21, 22) ménagée dans la paroi latérale interne d'extrémité (5c, 5d) du boîtier (5) de gâche (6), puis amené à sa partie inférieure par coulissement de la tête (17, 18) derrière une partie rétrécie de ladite boutonnière (21, 22), jusqu'à ce que le becquet (19, 20) s'encliquette élastiquement à la partie supérieure de la lumière (21, 22).Lock according to claim 2, characterized in that each stopper (11, 12) comprises removable fixing means cooperating with the internal end walls (5c, 5d) of the keeper housing (5) (6), constituted by a lug (15, 16) with head (17, 18) produced at the lower part of the fixed branch (11a, 12a) of said stopper (11, 12) and of an anchoring spoiler (19, 20) produced at its upper part, said lug (15, 16) being introduced by its head (17, 18) into the enlarged upper part of a buttonhole-shaped opening (21, 22) formed in the internal lateral end wall (5c, 5d) of the keeper housing (5) (6), then brought to its lower part by sliding the head (17, 18) behind a narrowed part of said buttonhole (21, 22), until the spoiler ( 19, 20) snaps into place at the upper part of the light (21, 22). Serrure selon l'une des revendications 2 à 4, caractérisée en ce que les branches déformables élastiquement (11b, 12b) de chaque butoir (11, 12), tournées vers l'axe (XX′) de la serrure (1), comportant chacune à leur extrémité libre, une pente d'entrée inclinée (23, 24) se prolongeant par une face parallèle (25, 26) audit axe (XX′) de la serrure (1), la pente d'entrée (23, 24) étant susceptible de coopérer, à la fermeture, avec les pentes latérales d'entrée (2a, 2b) correspondantes de l'élément support (2) de fourchette (4).Lock according to one of claims 2 to 4, characterized in that the elastically deformable branches (11b, 12b) of each stopper (11, 12), turned towards the axis (XX ′) of the lock (1), each having an entry slope at their free end inclined (23, 24) extending by a parallel face (25, 26) to said axis (XX ′) of the lock (1), the entry slope (23, 24) being capable of cooperating, upon closure, with the lateral inlet slopes (2a, 2b) corresponding to the support element (2) of the fork (4). Serrure selon l'une des revendications 2 à 5 caractérisée en ce que les butoirs (11, 12) sont identiques et obtenus au cours d'une opération unique de moulage.Lock according to one of Claims 2 to 5, characterized in that the stops (11, 12) are identical and obtained during a single molding operation.
EP19920400748 1991-03-27 1992-03-20 Lock for the hood of a motor vehicle comprising means for self-centerung Expired - Lifetime EP0507647B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9103706A FR2674562B1 (en) 1991-03-27 1991-03-27 LOCK FOR VEHICLE HOOD COMPRISING SELF-CENTERING MEANS.
FR9103706 1991-03-27

Publications (2)

Publication Number Publication Date
EP0507647A1 true EP0507647A1 (en) 1992-10-07
EP0507647B1 EP0507647B1 (en) 1995-01-04

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ID=9411181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920400748 Expired - Lifetime EP0507647B1 (en) 1991-03-27 1992-03-20 Lock for the hood of a motor vehicle comprising means for self-centerung

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EP (1) EP0507647B1 (en)
DE (1) DE69201079T2 (en)
ES (1) ES2066569T3 (en)
FR (1) FR2674562B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1108733A (en) * 1964-08-12 1968-04-03 Wilmot Breeden Ltd Improvements in or relating to releasable door fastening devices
DE2725345A1 (en) * 1977-06-04 1978-12-07 Kiekert Soehne Arn MOTOR VEHICLE DOOR LOCK
US4827669A (en) * 1988-05-23 1989-05-09 General Motors Corporation Glass stabilizer for vehicle door assembly
EP0314075B1 (en) * 1987-10-30 1992-01-02 FIAT AUTO S.p.A. Lock, in particular for a vehicle tail hatch, with transverse immobilisation and automatic take-up of slack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1108733A (en) * 1964-08-12 1968-04-03 Wilmot Breeden Ltd Improvements in or relating to releasable door fastening devices
DE2725345A1 (en) * 1977-06-04 1978-12-07 Kiekert Soehne Arn MOTOR VEHICLE DOOR LOCK
EP0314075B1 (en) * 1987-10-30 1992-01-02 FIAT AUTO S.p.A. Lock, in particular for a vehicle tail hatch, with transverse immobilisation and automatic take-up of slack
US4827669A (en) * 1988-05-23 1989-05-09 General Motors Corporation Glass stabilizer for vehicle door assembly

Also Published As

Publication number Publication date
FR2674562A1 (en) 1992-10-02
DE69201079T2 (en) 1995-07-27
FR2674562B1 (en) 1995-09-08
DE69201079D1 (en) 1995-02-16
ES2066569T3 (en) 1995-03-01
EP0507647B1 (en) 1995-01-04

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