EP0342089A1 - Buckle for safety belts - Google Patents

Buckle for safety belts Download PDF

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Publication number
EP0342089A1
EP0342089A1 EP89401205A EP89401205A EP0342089A1 EP 0342089 A1 EP0342089 A1 EP 0342089A1 EP 89401205 A EP89401205 A EP 89401205A EP 89401205 A EP89401205 A EP 89401205A EP 0342089 A1 EP0342089 A1 EP 0342089A1
Authority
EP
European Patent Office
Prior art keywords
latch
base
bolt
buckle according
lock
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
EP89401205A
Other languages
German (de)
French (fr)
Other versions
EP0342089B1 (en
Inventor
Jean-Noel Ballet
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Publication of EP0342089A1 publication Critical patent/EP0342089A1/en
Application granted granted Critical
Publication of EP0342089B1 publication Critical patent/EP0342089B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/2503—Safety buckles
    • A44B11/2546—Details
    • A44B11/2565—Illuminated buckles
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/2503—Safety buckles
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2523—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and in the same direction as the fastening action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/45639—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/4566—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member
    • Y10T24/45665—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member for shifting pivotally connected interlocking component

Definitions

  • the present invention relates to seat belt buckles and, more particularly, those of them intended for motor vehicles, preferably land vehicles.
  • the strap of the seat belt is subjected to a tension which can be notably higher; this tension is that which is, for example, exerted by the weight of an occupant who is supported or suspended by the strap in the event of the vehicle overturning. It is necessary that in such conditions the seat belt buckle can be opened by the occupant himself or a third party relatively easily in order to release the person thus maintained. This is difficult because in such a situation the belt tension is around 50 daN to around 60 daN and one must be able to open the loop by exerting a force of 25 daN which is practically extremely difficult to develop.
  • a buckle for a seat belt with a locking conviction is, for example, described in French patent 2,349,296 and its certificate of addition 2,379,995.
  • the object of the invention is to produce a buckle for a seat belt, in particular for a motor vehicle with locking locking which, while offering the advantages of the buckle which has just been mentioned, does not have the disadvantages, in particular economic.
  • the subject of the invention is a buckle for a seat belt, in particular for a land motor vehicle, intended to join a strap to an anchor point and which is composed, in particular, of a bolt and a keeper which comprises, inter alia, a base and carried by it a lock, an ejector guide, a actuation button and preferably a protective cover.
  • This loop is such that this base delimits a channel intended to receive at least partially the bolt, this lock is mounted on this base using a joint which allows it to move practically only by tilting so as to be movable between at least two positions towards which it is urged elastically, a first release position where the bolt is unlocked and a second retaining position where the bolt is locked to the strike by the bolt, this ejector guide has a housing intended to receive the at least partially the bolt and is mounted on this base in order to be able to move therein in translation so as to be movable between a rest position towards which it is normally elastically stressed and which it occupies when the bolt is in its first position and a armed position that it occupies when the lock is not in its first position, this actuation button is mounted on this base so that it can be move in translation so as to be movable between an inactive position towards which it is normally elastically stressed and an active position in which it causes the lock to pass into its first position.
  • the loop according to the invention is characterized in that the lock is elastically deformable towards a third locking position where it is subjected directly to the base when it occupies its second position and that the locked loop is subjected to a tending force to open it greater than a determined value and in that control and blocking means combine this actuation button, this latch and this base so that in a first mode, when the force tending to open the locked loop does not exceed this determined value, when the actuation button changes from its inactive position to its active position, the latch moves its second at its first position to release the bolt and the ejector guide passes from its armed position to its rest position to eject the bolt released from the base and in a second mode, when the effort tends to open the locked loop equal or exceeds this determined value, the actuation button cannot pass from its inactive position to its active position to dislodge the lock from its third position, make it pass its second position and gain its first position.
  • a buckle for a seat belt in particular for a motor vehicle according to the invention, intended to join a strap to an anchor point, consists, inter alia, of a bolt 10 and a keeper comprising, a base 20 and carried by the latter a lock 30, an ejector guide 40, an actuation button 50 and, preferably, a protective envelope 60.
  • this protective envelope contains also, if necessary, a detector 80 for closing the loop and a lighting device 90.
  • the bolt 10 comprises a body 101 provided with an extension 102.
  • the body 101 is pierced with a passage 103 intended to receive a strand of a safety strap, not shown.
  • the housing 102 is pierced with a cutout 104 intended to cooperate with the lock 30 as will be seen later.
  • the base 20 is in the form of a U-shaped part with a bottom 201 which brings together two practically parallel sides 202. In the sides are formed two interior bosses 203 facing each other. This bottom, these sides and these bosses define a channel 200 intended to receive the extension 102 of the bolt, as will be understood later.
  • an opening 210 which consists of a slot 211 at one end, followed by a middle window 212 and terminated by an opening 213.
  • a middle window 212 In the bottom is also made a notch 209. This bottom is also pierced with a hole 214 to receive a connection with an anchor point, not shown.
  • each of the sides 202 is also provided with a manhole 233, a light 204, a protrusion 205, a bearing 231 with a joint 230 as well as a turned ear 220 towards the exterior, which we will come back to later.
  • the lock 30 is in the manner of a plate on one of the faces of which is formed a spout 301 and on two of the sides of which there are also wings 302 and supports 303. Oriented in the same direction, the plate also carries a base 320 provided with a nipple 321. The sides of this plate where the wings 302 and the supports 303 are located carry pins 310 of the joint 230 and form legs 340, as shown.
  • the ejector guide 40 comprises a shoe 410 in the form of a fork with two teeth followed by a stirrup 420 which is extended by a heel 430 in which are formed on two sides of the grooves 440.
  • This shoe and this stirrup define a housing 400 intended to receive the end of the extension 102 of the bolt 10, as will be understood later.
  • the ejector guide also includes a nipple 450.
  • the actuation button 50 comprises a front 501 and two side walls 502. In the front 501 is provided a mouth 510 for the passage of the extension 102 of bolt 10.
  • the side walls 502 are provided with elastic fingers 520 which each carry a tooth 521.
  • Each of the teeth 521 has a bevel 522 and a shoulder 523.
  • the side walls 502 also have grooves 503 intended to receive the ears 220 of the base.
  • the actuation button 50 also carries a stud 504 and on one of its side walls 502 a bar 530 with a rib 531 to which we will return. All this is clearly illustrated in Fig. 7.
  • the protective envelope 60 is in the manner of a housing 600 in which is placed, if necessary, a stud 601 as shown in FIG. 2. This envelope also carries a relatively rigid elastic lip 602.
  • the housing 600 is crossed by a rod 610 which can slide therein relatively freely, pierced near its end with a hole 611 intended to receive an eyelet, rivet or analog 612 in order to join this rod to the base 20 using the hole 214.
  • This rod makes it possible to join the keeper of the loop according to the invention to an anchor point, not drawn, of the structure of a vehicle, as it is classic.
  • the loop according to the invention comprises control and blocking means 70.
  • control and blocking means 70 consist of a cam 75 formed on each of the walls 502 of the actuation button 50 and of a cam follower 73 carried by each of the wings 302 of the lock 30.
  • control and blocking means 70 also comprise an edge 71 on each of the wings 302 of the lock 30 and a locking notch 72 formed in each of the slots 204 formed in the sides 202 of the base 20.
  • the loop according to the invention also includes, if necessary, a closing detector 80 housed in the protective casing 60.
  • This detector comprises a switch 800, the operating member 801 of which is placed on the path of the latch 30 so as to be able to be actuated by one of the wings 302 of the latter.
  • the lock according to the invention also includes, if necessary, a lighting device 90 housed in the protective envelope 60. This lighting device is arranged so as to illuminate at least the channel 200 of the bolt 10.
  • the detector 80 and the lighting device 90 are mounted by any suitable conventional technique, for example on a common support 89 fixed on the base 20 using a snap-fit assembly for example, not drawn, intended to cooperate with an orifice 88 of the base.
  • a spring 460 exerts a stress elastic on the latch 30 and on the ejector guide 40 and a spring 540 exerts an elastic stress on the actuation button 50.
  • the ejector guide 40 has been engaged in the opening 210 of the bottom 201 of the base 20 by first passing through the opening 213 with its heel 430 then by sliding it into the window 212 so that its grooves 440 can slide there against the edges thereof. Then the spring 460 is threaded onto the stud 450 and the lock 30 is suitably oriented while engaging its journals 310 in the bearings 231 and its beak in the slot 211, then the spring 460 is released so that it engages on the stud 321 of the base 320 of the lock 30.
  • the supports 303 of the lock direct and center the latter between the sides 202 of the base.
  • the actuating button 50 is engaged so that its grooves 503 come over the ears 220 over which it is free to slide.
  • the fingers 520 are discarded elastically, the teeth 521 of which engage in the manholes 233.
  • the bevels 522 of the teeth 520 facilitate this engagement.
  • the shoulders 523 serve as a stop to prevent the actuation button 50 from separating from the base 20 under the pressure of the spring 540 which has been threaded onto the pins 504 and 601 or 321.
  • the stroke of the actuation button 50 is limited by the cooperation of the inner face of its front 501 and the parts of the sides 202 of the base which delimit the lights 204 and are directed towards the front.
  • the spring 540 is then placed on the stud 504 and the housing 600 is approached from the protective envelope 60 which is immobilized by any suitable technique in the position where it is illustrated in FIG. 2, in this case by the click of the retaining lip 602 in the notch 209.
  • the pins 310 of the latch 30 can rotate, without practically sliding therein, in the bearings 231 of the base 20.
  • These bearings 231, as shown, have an inverted L configuration of so as to facilitate the assembly and to keep the pins 310 trapped.
  • the games allow assembly and manual or automatic assembly as well as safe operation. It can therefore be seen that the lock 30 is mounted on the base 20 in a manner which allows it to move only by tilting in order to be movable between at least two positions towards which it is resiliently urged by the spring 460. The lock 30 can therefore move between a first release position where the bolt 10 is unlocked and a second retaining position where the bolt 10 is locked to the strike by the bolt 30.
  • this unhindered tilting of the lock on the base also results from the configur own data given to the spout 301 of the lock 30 and to the slot 211 of the opening 210 of the bottom 201 of the base 20 as well as their relative positions.
  • the bolt In its second retaining position where the bolt 30 locks the bolt 10 on the strike, the bolt is pushed back by the ejector guide 40 against the bolt so that the spout 301 thereof and the edge of the cutout 104 touch without the spout 301 touching the slot 211 of the base 20, a clearance well-defined predetermined existing between them.
  • the ejector guide 40 is housed in the opening 210 of the bottom 201 of the base 20 so that its grooves 440 rest with play against the edges of the window 212 where it can slide. It is therefore seen that the ejector guide can move in translation so as to be movable between a rest position towards which it is normally resiliently urged by the spring 460 and which it occupies when the latch 30 is in its first position and a armed position which it occupies when the latch 30 is not in its first position.
  • the actuation button 50 thanks to the cooperation of its grooves 503 with the ears 220 of the base 20 can move therein in translation so as to be movable between an inactive position towards which it is normally elastically stressed by the spring 540 and a position in which it passes the latch 30 in its first position.
  • FIG. 3 are schematic and only part of the components of a loop according to the invention are illustrated there.
  • Fig.3A the components are illustrated in the relative positions they occupy either for hooking the bolt on the keeper for closing the loop or immediately following the opening of the loop.
  • the latch 30 In the illustrated position where the actuating button 50 is not shown, the latch 30 is illustrated in its first position and the ejector guide 40 in its rest position. If we now direct the bolt towards the strike by engaging its extension 102 in the mouth of the button to make it enter the channel 200 of the base 20 then in the housing 400 of the ejector guide 40 and that it pushes all the way, the ejector guide 40 is gradually pushed back towards its armed position against the stress of the spring 460 which is itself progressively compressed.
  • the spring 460 By compressing, the spring 460 develops an increasing torque on the latch 30 which, initially biased clockwise (Fig.3A) by this thinly banded spring, swings freely counterclockwise around its articulation 230 as soon as it is crossed. balance point. The buckle then takes its locked position illustrated in Fig.3B. In this situation the latch 30 occupies its second position and the ejector guide 40 occupies its armed position.
  • the bolt now attaches directly to the base; the game is absorbed.
  • a double cooperation is manifested, on the one hand the spout 301 is applied against the slot 210 and on the other hand the edges 71 of the wings 302 engage in the notches 72 of the lights 204 formed in the sides 202 of the base 20.
  • the position is then that illustrated in Fig.3C.
  • the lock is designed so that its beak 301 and its legs 340 deform elastically to neutralize the play initial predetermined when such traction exceeds a selected predetermined value, passing from its second to its third position.
  • FIG.4A and 4B where this embodiment of the loop according to the invention is illustrated schematically in different positions which correspond to the opening phase of the loop.
  • the actuation button 50 is pressed against the biasing of the spring 540. By doing this the actuation button leaves its inactive position, towards which it is normally biased by the spring 540, and goes to an active position in which it causes the latch 30 to pass into its first position.
  • the loop closing detector 80 is mounted as shown in the figures in the drawing.
  • This detector comprises, for example, a microswitch 800 whose operating member 801 is placed on the path of one of the wings 302 of the lock.
  • This switch is such that when the lock occupies its first release position where the bolt is unlocked, the switch is actuated to implement an undrawn signaling circuit.
  • the lock does not occupy its first position, its wing 302 no longer acts on the operating member of the switch and the latter is at rest.
  • This signaling circuit is of any type known to trigger an acoustic and / or light signal in the vehicle indicating that an occupant of the vehicle has not put on and fastened their seat belt.
  • This switch can be of the contact-work or contact-rest type.
  • the lighting device 90 which comprises a miniature filament lamp or a light-emitting diode for example, is oriented so as to preferably illuminate the channel 200 and the mouth 510 in order to facilitate the insertion of the bolt into the keeper.
  • the lighting and extinction of this lighting device are for example controlled simultaneously with the lighting and extinction of the overhead light of the motor vehicle during the opening or closing of the doors or else during the implementation. parking and / or vehicle traffic lights.
  • the classic electrical circuit is not drawn.
  • the ejector guide 40, the actuation button 50 and the protective cover 60 are, for example, made of synthetic material and are obtained for example by molding.
  • the actuation button 50 is preferably translucent so as to make the radiation from the lighting device perceptible.
  • the housing 600 of the protective envelope 60 can be made in one piece from molding or made in two half-shells assembled in any suitable known manner.
  • the bolt 10, the base 20 and the latch 30 are preferably made of metal and obtained by stamping, cutting and bending of metal sheets as is known. If we compare the embodiments of Fig.1 and 5 we see that the lock 30 of Fig.1 is easier to manufacture than that illustrated in Fig.5. In this regard, special care must be taken in choosing the material from which the lock 30 is made so that it has the elasticity necessary for the invention.
  • the value of the game , the dimensions and the sections of the beaks and legs are closely dependent on the mechanical properties of this material and the choice of the latter is also dependent on the manufacturing techniques chosen which are themselves linked to the equipment and tools available.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)

Abstract

La boucle destinée à réunir une sangle à un point d'ancrage est composée, entre autres, d'un pène (10) et d'une gâche qui comprend une embase (20), un verrou (30), un guide-éjecteur (40), un bouton d'ac­tionnement (50), de préférence, une enveloppe protec­trice (60) et, s'il y a lieu, un détecteur de fer­meture (80) et un dispositif d'éclairage (90).Cette boucle comprend des moyens de commande et de blocage (70) qui font coopérer le verrou avec le bouton et avec l'embase soit pour permettre l'ouvertu­re de la boucle verrouillée lorsque celle-ci est soumise à une traction inférieure à une limite donnée soit pour assurer la condamnation de la boucle ver­rouillée lorsque celle-ci est soumise à une traction au moins égale à une valeur prédéterminée et en in­terdire l'ouverture.Application aux ceintures de sécurité pour véhicule automobile.The loop intended to join a strap to an anchor point is composed, among other things, of a bolt (10) and a keeper which comprises a base (20), a latch (30), an ejector guide ( 40), an actuating button (50), preferably a protective cover (60) and, if applicable, a closure sensor (80) and a lighting device (90). This loop includes control and locking means (70) which cause the lock to cooperate with the button and with the base either to allow the opening of the locked buckle when the latter is subjected to a traction below a given limit or to ensure the locking of the locked buckle when the latter is subjected to a traction at least equal to a predetermined value and prohibiting the opening thereof. Application to safety belts for motor vehicles.

Description

La présente invention concerne les boucles pour ceinture de sécurité et, plus particulièrement, celles d'entre elles destinées à des véhicules au­tomobiles de préférence terrestres.The present invention relates to seat belt buckles and, more particularly, those of them intended for motor vehicles, preferably land vehicles.

Comme on le sait, les véhicules automobiles en particulier terrestres sont équipés de ceintures de sécurité qui doivent répondre à un cahier des charges draconien, établi, le plus souvent, par les pouvoirs publics, au moins pour partie.As we know, motor vehicles in particular on land are equipped with seat belts which must meet a draconian specification, established, most often, by the public authorities, at least in part.

Dans les conditions habituelles, lorsqu'une ceinture de sécurité n'agit pas pour retenir un occu­pant du véhicule sur son siège comme elle le fait en cas de choc violent, la sangle de la ceinture repose normalement contre le corps de son porteur, au besoin sous l'action d'une très petite tension exercée par un mécanisme de rappel d'un enrouleur. Dans de telles conditions il est relativement facile d'ouvrir la boucle d'une ceinture.Under normal conditions, when a seat belt does not act to restrain an occupant of the vehicle in its seat as it does in the event of a violent impact, the strap of the belt normally rests against the body of the wearer, if necessary. under the action of a very small tension exerted by a return mechanism of a reel. In such conditions it is relatively easy to open the buckle of a belt.

Dans d'autres circonstances, en particulier lorsqu'un véhicule à la suite d'un accident se trouve avoir versé, la sangle de la ceinture de sécurité est soumise à une tension qui peut être notablement plus forte ; cette tension est celle qui est, par exemple, exercée par le poids d'un occupant qui se trouve soutenu ou suspendu par la sangle en cas de retour­nement du véhicule. Il faut que dans de telles con­ditions la boucle de ceinture de sécurité puisse être ouverte par l'occupant lui-même ou un tiers relativement facilement afin de libérer la personne ainsi maintenue. Obtenir ceci est délicat car dans une telle situation la tension de la ceinture est de l'ordre de 50 daN à 60 daN environ et on doit pouvoir ouvrir la boucle en exerçant une force de 25 daN qu'il est pratiquement extrêmement difficile de développer.In other circumstances, in particular when a vehicle following an accident is found to have been tipped, the strap of the seat belt is subjected to a tension which can be notably higher; this tension is that which is, for example, exerted by the weight of an occupant who is supported or suspended by the strap in the event of the vehicle overturning. It is necessary that in such conditions the seat belt buckle can be opened by the occupant himself or a third party relatively easily in order to release the person thus maintained. This is difficult because in such a situation the belt tension is around 50 daN to around 60 daN and one must be able to open the loop by exerting a force of 25 daN which is practically extremely difficult to develop.

En outre, il faut impérativement que lors d'un choc violent proprement dit, quand la ceinture de sécurité retient l'occupant sur son siège et que sa tension dépasse 100 daN pendant les brefs instants de l'absorption de l'énergie cinétique, la boucle ver­rouillée ne s'ouvre pas intempestivement à un moment particulièrement inopportun sous peine de voir réduire à néant son efficacité. Pour parvenir à ceci on a déjà imaginé des boucles qui, une fois verrouillées, sont maintenues condamnées dans cet état.In addition, it is imperative that during a severe shock proper, when the seat belt retains the occupant in his seat and his tension exceeds 100 daN during the brief moments of absorption of kinetic energy, the locked buckle does not open unexpectedly at a particularly untimely moment, otherwise its effectiveness will be negated. To achieve this we have already imagined loops which, once locked, are kept locked in this state.

Une boucle pour ceinture de sécurité à con­damnation de verrouillage est, par exemple, décrite dans le brevet français 2 349 296 et son certificat d'addition 2 379 995.A buckle for a seat belt with a locking conviction is, for example, described in French patent 2,349,296 and its certificate of addition 2,379,995.

Ces documents exposent différentes variantes de boucles de ceinture de sécurité à condamnation du verrouillage. Tous les modes de réalisation qui y sont exposés satisfont aux normes mais leurs réalisation est quelque peu complexe. Si une telle réalisation complexe ne met pas en cause la fiabilité de ces boucles elle est toutefois préjudiciable à un coût de fabrication et de montage relativement modique.These documents disclose different variants of seat belt buckles with locking interlock. All the embodiments which are exposed meet the standards but their realization is somewhat complex. If such a complex embodiment does not call into question the reliability of these loops, it is however detrimental to a relatively low manufacturing and mounting cost.

Le but de l'invention est de réaliser une boucle pour ceinture de sécurité notamment de véhicule automobile à condamnation du verrouillage qui tout en offrant les avantages de la boucle que l'on vient de rappeler n'en présente pas les inconvénients notamment économiques.The object of the invention is to produce a buckle for a seat belt, in particular for a motor vehicle with locking locking which, while offering the advantages of the buckle which has just been mentioned, does not have the disadvantages, in particular economic.

L'invention a pour objet une boucle pour ceinture de sécurité notamment de véhicule automobile terrestre destinée à réunir une sangle à un point d'ancrage et qui est composée, notamment, d'un pène et d'une gâche qui comprend, entre autres, une embase et portés par celle-ci un verrou, un guide-éjecteur, un bouton d'actionnement et, de préférence, une enveloppe protectrice.The subject of the invention is a buckle for a seat belt, in particular for a land motor vehicle, intended to join a strap to an anchor point and which is composed, in particular, of a bolt and a keeper which comprises, inter alia, a base and carried by it a lock, an ejector guide, a actuation button and preferably a protective cover.

Cette boucle est telle que cette embase dé­limite un chenal destiné à recevoir au moins partiel­lement le pène, ce verrou est monté sur cette embase à l'aide d'une articulation qui lui permet de se dépla­cer pratiquement seulement par basculement de manière à être mobile entre au moins deux positions vers les­quelles il est sollicité élastiquement, une première position de libération où le pène est déverrouillé et une deuxième position de retenue où le pène est ver­rouillé sur la gâche par le verrou, ce guide-éjecteur présente un logement destiné à recevoir au moins partiellement le pène et est monté sur cette embase pour pouvoir s'y déplacer en translation de manière à être mobile entre une position de repos vers laquelle il est normalement sollicité élastiquement et qu'il occupe lorsque le verrou est dans sa première posi­tion et une position armée qu'il occupe lorsque le verrou n'est pas dans sa première position, ce bouton d'actionnement est monté sur cette embase pour pouvoir s'y déplacer en translation de manière à être mobile entre une position inactive vers laquelle il est normalement sollicité élastiquement et une position active dans laquelle il fait passer le verrou dans sa première position.This loop is such that this base delimits a channel intended to receive at least partially the bolt, this lock is mounted on this base using a joint which allows it to move practically only by tilting so as to be movable between at least two positions towards which it is urged elastically, a first release position where the bolt is unlocked and a second retaining position where the bolt is locked to the strike by the bolt, this ejector guide has a housing intended to receive the at least partially the bolt and is mounted on this base in order to be able to move therein in translation so as to be movable between a rest position towards which it is normally elastically stressed and which it occupies when the bolt is in its first position and a armed position that it occupies when the lock is not in its first position, this actuation button is mounted on this base so that it can be move in translation so as to be movable between an inactive position towards which it is normally elastically stressed and an active position in which it causes the lock to pass into its first position.

La boucle selon l'invention est caractérisée en ce que le verrou est déformable élastiquement vers une troisième position de condamnation où il s'assu­jettit directement à l'embase lorsqu'il occupe sa deuxième position et que la boucle verrouillée est soumise à un effort tendant à l'ouvrir supérieur à une valeur déterminée et en ce que des moyens de commande et blocage associent ce bouton d'actionnement, ce verrou et cette embase de manière que dans un premier mode, quand l'effort tendant à ouvrir la boucle verrouillée ne dépasse pas cette valeur déterminée, lorsque le bouton d'actionnement passe de sa position inactive à sa position active, le verrou se déplace de sa deuxième à sa première position pour libérer le pène et le guide-éjecteur passe de sa position armée à sa position de repos pour éjecter le pène libéré de l'embase et dans un second mode, quand l'effort ten­dant à ouvrir la boucle verrouillée égale ou dépasse cette valeur déterminée, le bouton d'actionnement ne peut pas passer de sa position inactive à sa position active pour déloger le verrou de sa troisième posi­tion, lui faire franchir sa deuxième position et gagner sa première position.The loop according to the invention is characterized in that the lock is elastically deformable towards a third locking position where it is subjected directly to the base when it occupies its second position and that the locked loop is subjected to a tending force to open it greater than a determined value and in that control and blocking means combine this actuation button, this latch and this base so that in a first mode, when the force tending to open the locked loop does not exceed this determined value, when the actuation button changes from its inactive position to its active position, the latch moves its second at its first position to release the bolt and the ejector guide passes from its armed position to its rest position to eject the bolt released from the base and in a second mode, when the effort tends to open the locked loop equal or exceeds this determined value, the actuation button cannot pass from its inactive position to its active position to dislodge the lock from its third position, make it pass its second position and gain its first position.

D'autres caractéristiques de l'invention apparaîtront à la lecture de la description et des revendications qui suivent et à l'examen du dessin annexé, donné seulement à titre d'exemple, où :

  • - la Fig.1 est une vue perspective éclatée d'un mode de réalisation d'une boucle de ceinture de sécurité selon l'invention ;
  • - la Fig.2 est une coupe longitudinale de la boucle illustrée sur la Fig.1 une fois assemblée, représentée en position verrouillée sans son pène ;
  • - les Fig.3A, 3B et 3C sont des vues schématiques partielles illustrant le fonctionnement du mode de réalisation de la boucle selon l'invention illustrée sur les Fig.1 et 2 ;
  • - les Fig.4A et 4B sont d'autres vues frag­mentaires illustrant le fonctionnement de ce mode de réalisation ;
  • - La Fig.5 est une vue analogue à celle de la Fig.1 avec arrachement local d'une autre variante de réalisation d'une boucle de ceinture selon l'in­vention ;
  • - la Fig.6 et une coupe longitudinale d'une boucle selon la Fig.5 assemblée, en position verrouil­lée sans pène analogue à la Fig.2 ; et
  • - la Fig.7 est une vue perspective du seul bouton d'actionnement des modes de réalisation des Fig.1 et 5 en montrant l'essentiel de sa configura­tion.
Other characteristics of the invention will appear on reading the description and the claims which follow and on examining the appended drawing, given only by way of example, where:
  • - Fig.1 is an exploded perspective view of an embodiment of a seat belt buckle according to the invention;
  • - Fig.2 is a longitudinal section of the loop illustrated in Fig.1 once assembled, shown in the locked position without its bolt;
  • - Fig.3A, 3B and 3C are partial schematic views illustrating the operation of the embodiment of the loop according to the invention illustrated in Fig.1 and 2;
  • - Fig.4A and 4B are other fragmentary views illustrating the operation of this embodiment;
  • - Fig.5 is a view similar to that of Fig.1 with local cutaway of another variant making a belt buckle according to the invention;
  • - Fig.6 and a longitudinal section of a loop according to Fig.5 assembled, in the locked position without bolt similar to Fig.2; and
  • - Fig.7 is a perspective view of the single actuation button of the embodiments of Fig.1 and 5 showing the essentials of its configuration.

Les boucles pour ceinture de sécurité pour véhicule automobile notamment terrestre étant bien connues dans la technique, on ne décrira par la suite que ce qui a trait directement ou indirectement à l'invention. Pour le surplus le spécialiste de la technique considérée puisera dans les solutions classiques à sa disposition pour faire face aux pro­blèmes particuliers auxquels il est confronté.The buckles for seat belts for motor vehicles, in particular land vehicles, being well known in the art, we will only describe below what relates directly or indirectly to the invention. For the rest, the specialist in the technique considered will draw on the conventional solutions at his disposal to deal with the particular problems with which he is confronted.

Dans la suite on utilisera toujours un même numéro de référence pour désigner un élément homologue quel que soit le mode de réalisation en cause.In the following, the same reference number will always be used to designate a homologous element whatever the embodiment in question.

Comme on le voit en particulier sur les Fig.1 et 5, une boucle pour ceinture de sécurité no­tamment de véhicule automobile selon l'invention destinée à réunir une sangle à un point d'ancrage, se compose, entre autres, d'un pène 10 et d'une gâche comprenant, une embase 20 et portés par celle-ci un verrou 30, un guide-éjecteur 40, un bouton d'action­nement 50 et, de préférence, une enveloppe protectrice 60. Dans certains cas cette enveloppe protectrice contient aussi, s'il y a lieu, un détecteur 80 de fermeture de la boucle et un dispositif d'éclairage 90.As can be seen in particular in FIGS. 1 and 5, a buckle for a seat belt, in particular for a motor vehicle according to the invention, intended to join a strap to an anchor point, consists, inter alia, of a bolt 10 and a keeper comprising, a base 20 and carried by the latter a lock 30, an ejector guide 40, an actuation button 50 and, preferably, a protective envelope 60. In certain cases this protective envelope contains also, if necessary, a detector 80 for closing the loop and a lighting device 90.

Pour la commodité de l'exposé on décrira d'abord successivement chacun des constituants de cette boucle pour ceinture de sécurité suivant l'invention.For the convenience of the description, each of the constituents of this buckle for a seat belt according to the invention.

Le pène 10 comprend un corps 101 muni d'un prolongement 102. Le corps 101 est percé d'un passage 103 destiné à recevoir un brin d'une sangle de sé­curité, non représenté. Le logement 102 est transpercé d'une découpe 104 destinée à coopérer avec le verrou 30 comme on le verra par la suite.The bolt 10 comprises a body 101 provided with an extension 102. The body 101 is pierced with a passage 103 intended to receive a strand of a safety strap, not shown. The housing 102 is pierced with a cutout 104 intended to cooperate with the lock 30 as will be seen later.

L'embase 20 se présente à la manière d'une pièce en U avec un fond 201 qui réunit deux flancs 202 pratiquement parallèles. Dans les flancs sont ménagés deux bossages 203 intérieurs en vis-à-vis. Ce fond, ces flancs et ces bossages délimitent un chenal 200 destiné à recevoir le prolongement 102 du pène, comme on le comprendra par la suite.The base 20 is in the form of a U-shaped part with a bottom 201 which brings together two practically parallel sides 202. In the sides are formed two interior bosses 203 facing each other. This bottom, these sides and these bosses define a channel 200 intended to receive the extension 102 of the bolt, as will be understood later.

Dans le fond 201 est ménagée une ouverture 210 qui se compose d'une fente 211 à l'une des ex­trémités, suivie d'une fenêtre 212 médiane et terminée par un ajour 213. On comprendra le rôle joué par cha­cune de ces parties de l'ouverture 210 par la suite. Dans le fond est aussi pratiquée une entaille 209. Ce fond est aussi percé d'un trou 214 pour recevoir une liaison avec une point d'ancrage, non représenté.In the bottom 201 is formed an opening 210 which consists of a slot 211 at one end, followed by a middle window 212 and terminated by an opening 213. We will understand the role played by each of these parts of the opening 210 thereafter. In the bottom is also made a notch 209. This bottom is also pierced with a hole 214 to receive a connection with an anchor point, not shown.

Comme on peut l'observer, chacun des flancs 202 est aussi muni d'un regard 233, d'une lumière 204, d'une protubérance 205, d'un palier 231 d'une arti­culation 230 ainsi que d'une oreille 220 tournée vers l'extérieure, sur lesquels on reviendra par la suite.As can be observed, each of the sides 202 is also provided with a manhole 233, a light 204, a protrusion 205, a bearing 231 with a joint 230 as well as a turned ear 220 towards the exterior, which we will come back to later.

Le verrou 30 se présente à la manière d'une plaquette sur l'une des faces de laquelle est ménagé un bec 301 et sur deux des côtés de laquelle se trou­vent aussi des ailes 302 et des appuis 303. Orienté dans la même direction, la plaquette porte aussi un socle 320 muni d'un téton 321. Les côtés de cette plaquette où sont situés les ailes 302 et les appuis 303 portent des tourillons 310 de l'articulation 230 et forment des jambes 340, comme représenté.The lock 30 is in the manner of a plate on one of the faces of which is formed a spout 301 and on two of the sides of which there are also wings 302 and supports 303. Oriented in the same direction, the plate also carries a base 320 provided with a nipple 321. The sides of this plate where the wings 302 and the supports 303 are located carry pins 310 of the joint 230 and form legs 340, as shown.

Le guide-éjecteur 40 comprend un sabot 410 en forme de fourchette à deux dents suivi d'un étrier 420 qui se prolonge par un talon 430 où sont ménagées sur deux des côtés des gorges 440. Ce sabot et cet étrier délimitent un logement 400 destiné à recevoir le bout du prolongement 102 du pène 10, comme on le comprendra par la suite. Le guide-éjecteur comprend aussi un téton 450.The ejector guide 40 comprises a shoe 410 in the form of a fork with two teeth followed by a stirrup 420 which is extended by a heel 430 in which are formed on two sides of the grooves 440. This shoe and this stirrup define a housing 400 intended to receive the end of the extension 102 of the bolt 10, as will be understood later. The ejector guide also includes a nipple 450.

Comme on le voit, le bouton d'actionnement 50 comprend une façade 501 et deux parois latérales 502. Dans la façade 501 est ménagée une embouchure 510 pour le passage du prolongement 102 de pène 10.As can be seen, the actuation button 50 comprises a front 501 and two side walls 502. In the front 501 is provided a mouth 510 for the passage of the extension 102 of bolt 10.

Comme on le voit, les parois latérales 502 sont munies de doigts élastiques 520 qui portent chacun une dent 521. Chacune des dents 521 présente un biseau 522 et un épaulement 523. Les parois latérales 502 présentant aussi des rainures 503 destinées à recevoir les oreilles 220 de l'embase. Le bouton d'ac­tionnement 50 porte aussi un téton 504 et sur l'une de ses parois latérales 502 une barrette 530 avec une nervure 531 sur lesquels on reviendra. Tout ceci est clairement illustré sur la Fig.7.As can be seen, the side walls 502 are provided with elastic fingers 520 which each carry a tooth 521. Each of the teeth 521 has a bevel 522 and a shoulder 523. The side walls 502 also have grooves 503 intended to receive the ears 220 of the base. The actuation button 50 also carries a stud 504 and on one of its side walls 502 a bar 530 with a rib 531 to which we will return. All this is clearly illustrated in Fig. 7.

L'enveloppe protectrice 60 se présente à la manière d'un boîtier 600 dans lequel est placé, s'il y a lieu, un téton 601 comme cela apparaît sur la Fig.2. Cette enveloppe porte aussi une lèvre 602 élastique relativement rigide.The protective envelope 60 is in the manner of a housing 600 in which is placed, if necessary, a stud 601 as shown in FIG. 2. This envelope also carries a relatively rigid elastic lip 602.

Comme on le voit, le boîtier 600 est tra­versé par une tige 610 qui peut y coulisser relati­vement librement, percée au voisinage de son extrémité d'un trou 611 destiné à recevoir un oeillet, rivet ou analogue 612 afin de réunir cette tige à l'embase 20 à l'aide du trou 214. Cette tige permet de réunir la gâche de la boucle selon l'invention à un point d'an­crage, non dessiné, de la structure d'un véhicule, comme il est classique.As can be seen, the housing 600 is crossed by a rod 610 which can slide therein relatively freely, pierced near its end with a hole 611 intended to receive an eyelet, rivet or analog 612 in order to join this rod to the base 20 using the hole 214. This rod makes it possible to join the keeper of the loop according to the invention to an anchor point, not drawn, of the structure of a vehicle, as it is classic.

La boucle selon l'invention comprend des moyens de commande et de blocage 70. Ces moyens de commande et de blocage 70 se composent d'une came 75 ménagée sur chacune des parois 502 du bouton d'ac­tionnement 50 et d'une contre-came 73 portée par chacune des ailes 302 du verrou 30. Ces moyens de commande et de blocage 70 comprennent aussi une arête 71 sur chacune des ailes 302 du verrou 30 et un cran de condamnation 72 ménagé dans chacune des lumières 204 pratiquées dans les flancs 202 de l'embase 20.The loop according to the invention comprises control and blocking means 70. These control and blocking means 70 consist of a cam 75 formed on each of the walls 502 of the actuation button 50 and of a cam follower 73 carried by each of the wings 302 of the lock 30. These control and blocking means 70 also comprise an edge 71 on each of the wings 302 of the lock 30 and a locking notch 72 formed in each of the slots 204 formed in the sides 202 of the base 20.

La boucle selon l'invention comprend, aussi, s'il y a lieu, un détecteur de fermeture 80 logé dans l'enveloppe protectrice 60. Ce détecteur comprend un interrupteur 800 dont l'organe de manoeuvre 801 est placé sur la trajectoire du verrou 30 de manière à pouvoir être actionné par l'une des ailes 302 de ce dernier.The loop according to the invention also includes, if necessary, a closing detector 80 housed in the protective casing 60. This detector comprises a switch 800, the operating member 801 of which is placed on the path of the latch 30 so as to be able to be actuated by one of the wings 302 of the latter.

Le verrou selon l'invention comprend aussi si nécessaire, un dispositif d'éclairage 90 logé dans l'enveloppe protectrice 60. Ce dispositif d'éclairage est disposé de manière à illuminer au moins le chenal 200 du pène 10.The lock according to the invention also includes, if necessary, a lighting device 90 housed in the protective envelope 60. This lighting device is arranged so as to illuminate at least the channel 200 of the bolt 10.

Le détecteur 80 et le dispositif d'éclairage 90 sont montés par toute technique classique appro­priée par exemple sur un support commun 89 fixé sur l'embase 20 à l'aide d'un montage à encliquetage par exemple, non dessiné, destiné à coopérer avec un ori­fice 88 de l'embase.The detector 80 and the lighting device 90 are mounted by any suitable conventional technique, for example on a common support 89 fixed on the base 20 using a snap-fit assembly for example, not drawn, intended to cooperate with an orifice 88 of the base.

Un ressort 460 exerce une sollicitation élastique sur le verrou 30 et sur le guide-éjecteur 40 et un ressort 540 exerce une sollicitation élastique sur le bouton d'actionnement 50.A spring 460 exerts a stress elastic on the latch 30 and on the ejector guide 40 and a spring 540 exerts an elastic stress on the actuation button 50.

Les constituants que l'on vient de décrire et qui sont illustrés clairement et précisément no­tamment sur la Fig.1 et la Fig.7 auxquelles il suffit de reporter pour en connaître les configurations pro­pres exactes, sont assemblés comme cela est illustré sur la Fig.2 ou 6, suivant le mode de réalisation.The components which have just been described and which are illustrated clearly and precisely in particular in FIG. 1 and FIG. 7 to which it suffices to refer in order to know the exact proper configurations thereof, are assembled as illustrated in FIG. 2 or 6, depending on the embodiment.

Comme on le comprend en examinant les Fig.1 et 2 notamment, le guide-éjecteur 40 a été engagé dans l'ouverture 210 du fond 201 de l'embase 20 en faisant d'abord traverser l'ajour 213 par son talon 430 puis en le faisant glisser dans la fenêtre 212 de manière que ses gorges 440 puissent y coulisser contre les tranches de celle-ci. Ensuite on enfile le ressort 460 sur le téton 450 et on présente le verrou 30 convena­blement orienté tout en engageant ses tourillons 310 dans les paliers 231 et son bec dans la fente 211 puis on libère le ressort 460 de manière qu'il s'engage sur le téton 321 du socle 320 du verrou 30. Les appuis 303 du verrou dirigent et centrent celui-ci entre les flancs 202 de l'embase.As can be understood by examining FIGS. 1 and 2 in particular, the ejector guide 40 has been engaged in the opening 210 of the bottom 201 of the base 20 by first passing through the opening 213 with its heel 430 then by sliding it into the window 212 so that its grooves 440 can slide there against the edges thereof. Then the spring 460 is threaded onto the stud 450 and the lock 30 is suitably oriented while engaging its journals 310 in the bearings 231 and its beak in the slot 211, then the spring 460 is released so that it engages on the stud 321 of the base 320 of the lock 30. The supports 303 of the lock direct and center the latter between the sides 202 of the base.

Ceci fait on engage le bouton d'actionement 50 de manière que ses rainures 503 viennent coiffer les oreilles 220 sur lesquelles il est libre de cou­lisser. Pour faire ceci on écarte élastiquement les doigts 520 dont les dents 521 viennent s'engager dans les regards 233. Les biseaux 522 des dents 520 faci­litent cet engagement.This done, the actuating button 50 is engaged so that its grooves 503 come over the ears 220 over which it is free to slide. To do this, the fingers 520 are discarded elastically, the teeth 521 of which engage in the manholes 233. The bevels 522 of the teeth 520 facilitate this engagement.

Les épaulements 523 servent de butée pour éviter que le bouton d'actionnement 50 puisse se séparer de l'embase 20 sous la poussée du ressort 540 qui a été enfilé sur les tétons 504 et 601 ou 321. Dans l'autre sens, la course du bouton d'actionnement 50 est limitée par la coopération de la face inté­rieure de sa façade 501 et des parties des flancs 202 de l'embase qui délimitent les lumières 204 et sont dirigées vers la façade.The shoulders 523 serve as a stop to prevent the actuation button 50 from separating from the base 20 under the pressure of the spring 540 which has been threaded onto the pins 504 and 601 or 321. In the other direction, the stroke of the actuation button 50 is limited by the cooperation of the inner face of its front 501 and the parts of the sides 202 of the base which delimit the lights 204 and are directed towards the front.

Ceci fait on engage l'oeillet ou le rivet 612 dans les trous 214 et 611 de l'embase 20 et de la tige 610 respectivement afin de réunir ces deux cons­tituants.This done one engages the eyelet or the rivet 612 in the holes 214 and 611 of the base 20 and of the rod 610 respectively in order to join these two constituents.

On place ensuite le ressort 540 sur le téton 504 et on approche le boîtier 600 de l'enveloppe pro­tectrice 60 qui est immobilisée par toute technique appropriée dans la position où elle est illustrée sur la Fig.2, dans ce cas par l'encliquetage de la lèvre 602 de retenue dans l'entaille 209.The spring 540 is then placed on the stud 504 and the housing 600 is approached from the protective envelope 60 which is immobilized by any suitable technique in the position where it is illustrated in FIG. 2, in this case by the click of the retaining lip 602 in the notch 209.

Du fait de la configuration donnée à l'ar­ticulation 230, les tourillons 310 du verrou 30 peu­vent tourner, sans pratiquement y coulisser, dans les paliers 231 de l'embase 20. Ces paliers 231, comme dessiné, ont une configuration en L inversé de manière à faciliter le montage et à retenir prisonniers les tourillons 310. Les jeux permettent l'assemblage et le montage manuel ou automatique ainsi qu'un fonction­nement sûr. On voit donc que le verrou 30 est monté sur l'embase 20 d'une manière qui lui permet de se déplacer seulement par basculement afin d'être mobile entre au moins deux positions vers lesquelles il est sollicité élastiquement par le ressort 460. Le verrou 30 peut donc se mouvoir entre une première position de libération où le pène 10 est déverrouillé et une deuxième position de retenue où le pène 10 est ver­rouillé sur la gâche par le verrou 30. Comme on le comprendra par la suite, ce basculement sans entrave du verrou sur l'embase résulte aussi des configur­ tions propres données au bec 301 du verrou 30 et à la fente 211 de l'ouverture 210 du fond 201 de l'embase 20 ainsi que de leurs positions relatives. Dans sa deuxième position de retenue où le verrou 30 verrouil­le le pène 10 sur la gâche, le pène est repoussé par le guide-éjecteur 40 contre le verrou de manière que le bec 301 de celui-ci et le bord de la découpe 104 se touchent sans que pour autant le bec 301 touche la fente 211 de l'embase 20, un jeu

Figure imgb0001
prédéterminé bien défini existant entre ceux-ci.Due to the configuration given to the joint 230, the pins 310 of the latch 30 can rotate, without practically sliding therein, in the bearings 231 of the base 20. These bearings 231, as shown, have an inverted L configuration of so as to facilitate the assembly and to keep the pins 310 trapped. The games allow assembly and manual or automatic assembly as well as safe operation. It can therefore be seen that the lock 30 is mounted on the base 20 in a manner which allows it to move only by tilting in order to be movable between at least two positions towards which it is resiliently urged by the spring 460. The lock 30 can therefore move between a first release position where the bolt 10 is unlocked and a second retaining position where the bolt 10 is locked to the strike by the bolt 30. As will be understood later, this unhindered tilting of the lock on the base also results from the configur own data given to the spout 301 of the lock 30 and to the slot 211 of the opening 210 of the bottom 201 of the base 20 as well as their relative positions. In its second retaining position where the bolt 30 locks the bolt 10 on the strike, the bolt is pushed back by the ejector guide 40 against the bolt so that the spout 301 thereof and the edge of the cutout 104 touch without the spout 301 touching the slot 211 of the base 20, a clearance
Figure imgb0001
well-defined predetermined existing between them.

Comme on l'a vu, le guide-éjecteur 40 est logé dans l'ouverture 210 du fond 201 de l'embase 20 de manière à ce que ses gorges 440 reposent avec jeu contre les tranches de la fenêtre 212 où il peut coulisser. On voit donc que le guide-éjecteur peut se déplacer en translation de manière à être mobile entre une position de repos vers laquelle il est normalement sollicité élastiquement par le ressort 460 et qu'il occupe lorsque le verrou 30 est dans sa première posi­tion et une position armée qu'il occupe lorsque le verrou 30 n'est pas dans sa première position.As we have seen, the ejector guide 40 is housed in the opening 210 of the bottom 201 of the base 20 so that its grooves 440 rest with play against the edges of the window 212 where it can slide. It is therefore seen that the ejector guide can move in translation so as to be movable between a rest position towards which it is normally resiliently urged by the spring 460 and which it occupies when the latch 30 is in its first position and a armed position which it occupies when the latch 30 is not in its first position.

Le bouton d'actionnement 50, grâce à la coopération de ses rainures 503 avec les oreilles 220 de l'embase 20 peut s'y déplacer en translation de manière à être mobile entre une position inactive vers laquelle il est normalement sollicité élastiquement par le ressort 540 et une position dans laquelle il fait passer le verrou 30 dans sa première position.The actuation button 50, thanks to the cooperation of its grooves 503 with the ears 220 of the base 20 can move therein in translation so as to be movable between an inactive position towards which it is normally elastically stressed by the spring 540 and a position in which it passes the latch 30 in its first position.

On se reportera maintenant aux Fig.3 et 4 où le mode de réalisation que l'on vient de décrire se trouve illustré dans différentes phases de son fonc­tionnement.We will now refer to Fig. 3 and 4 where the embodiment which has just been described is illustrated in different phases of its operation.

Les différentes Fig.3 sont schématiques et seule une partie des constituants d'une boucle selon l'invention y sont illustrés.The different Fig. 3 are schematic and only part of the components of a loop according to the invention are illustrated there.

Sur la Fig.3A, les constituants sont illus­trés dans les positions relatives qu'ils occupent soit en vue d'un accrochage du pène sur la gâche pour la fermeture de la boucle soit immédiatement à la suite de l'ouverture de la boucle. Dans la position illus­trée où ne figure pas le bouton d'actionnement 50, le verrou 30 est illustré dans sa première position et le guide-éjecteur 40 dans sa position de repos. Si l'on dirige maintenant le pène vers la gâche en engageant son prolongement 102 dans l'embouchure du bouton pour le faire pénétrer dans le chenal 200 de l'embase 20 puis dans le logement 400 du guide-éjecteur 40 et qu'on le pousse à fond, le guide-éjecteur 40 est pro­gressivement refoulé vers sa position armée à l'en­contre de la sollicitation du ressort 460 qui est, lui, progressivement comprimé. En se comprimant, le ressort 460 développe un couple croîssant sur le verrou 30 qui, initialement sollicité dans le sens horaire (Fig.3A) par ce ressort peu bandé, bascule librement dans le sens anti-horaire autour de son articulation 230 aussitôt franchi un point d'équi­libre. La boucle prend alors sa position verrouillée illustrée sur la Fig.3B. Dans cette situation le verrou 30 occupe sa deuxième position et le guide-­éjecteur 40 occupe sa position armée.In Fig.3A, the components are illustrated in the relative positions they occupy either for hooking the bolt on the keeper for closing the loop or immediately following the opening of the loop. In the illustrated position where the actuating button 50 is not shown, the latch 30 is illustrated in its first position and the ejector guide 40 in its rest position. If we now direct the bolt towards the strike by engaging its extension 102 in the mouth of the button to make it enter the channel 200 of the base 20 then in the housing 400 of the ejector guide 40 and that it pushes all the way, the ejector guide 40 is gradually pushed back towards its armed position against the stress of the spring 460 which is itself progressively compressed. By compressing, the spring 460 develops an increasing torque on the latch 30 which, initially biased clockwise (Fig.3A) by this thinly banded spring, swings freely counterclockwise around its articulation 230 as soon as it is crossed. balance point. The buckle then takes its locked position illustrated in Fig.3B. In this situation the latch 30 occupies its second position and the ejector guide 40 occupies its armed position.

Comme on le comprend aisément, au moment où le verrou 30 bascule autour de son articulation 230, son bec 301 s'engage dans la découpe 104 du prolon­gement 102 du pène 10 et dans la fente 211 de l'ou­verture 210 ménagée dans le fond 201 de l'embase 20. Le tarage du ressort 460 est choisi de manière que lorsque le verrou 30 bascule de sa première à sa deuxième position le bec se trouve à l'aplomb de la découpe du pène sans risquer de rencontrer les bords de cette dernière qui pourraient entraver sa course. Ce n'est que lorsque le pène est relâché, que le gui­de-éjecteur 40 peut faire reculer le pène pour le faire s'appuyer contre le bec du verrou, comme illus­tré sur la Fig.3B. Comme on peut l'observer sur cette Fig.3B un jeu

Figure imgb0002
déterminé et préfixé existe entre le bec et la fente dans laquelle il s'est engagé.As is easily understood, at the moment when the lock 30 swings around its articulation 230, its beak 301 engages in the cutout 104 of the extension 102 of the bolt 10 and in the slot 211 of the opening 210 formed in the bottom 201 of the base 20. The calibration of the spring 460 is chosen so that when the lock 30 switches from its first to its second position, the spout is in line with the cutting the bolt without risking meeting the edges of the latter which could hinder its travel. It is only when the bolt is released that the ejector guide 40 can move the bolt back to make it lean against the beak of the bolt, as illustrated in Fig.3B. As can be seen in this Fig.3B a game
Figure imgb0002
determined and prefixed exists between the spout and the slot in which it is engaged.

Si la boucle verrouillée, dont les cons­tituants sont placés dans les positions relatives illustrées sur la Fig.3B, est maintenant soumise à un effort de traction T qui dépase une valeur déterminée et qui tend à l'ouvrir, le pène étant arraché de la gâche, le pène 10 entraîne le verrou 30 vers une troisième position de condamnation comme dessiné sur la Fig.3C.If the locked loop, the components of which are placed in the relative positions illustrated in Fig.3B, is now subjected to a tensile force T which exceeds a determined value and which tends to open it, the bolt being torn from the keeper , the bolt 10 drives the latch 30 to a third locking position as shown in Fig.3C.

Comme on le voit alors, le verrou s'assu­jettit maintenant directement sur l'embase ; le jeu

Figure imgb0003
est résorbé. Une double coopération se manifeste, d'une part le bec 301 vient s'appliquer contre la fente 210 et d'autre part les arêtes 71 des ailes 302 s'engagent dans les crans 72 des lumières 204 pratiquées dans les flancs 202 de l'embase 20. La position est alors celle illustrée sur la Fig.3C.As can be seen then, the bolt now attaches directly to the base; the game
Figure imgb0003
is absorbed. A double cooperation is manifested, on the one hand the spout 301 is applied against the slot 210 and on the other hand the edges 71 of the wings 302 engage in the notches 72 of the lights 204 formed in the sides 202 of the base 20. The position is then that illustrated in Fig.3C.

Si l'effort de traction T sur le pène et transmis au verrou développait une composante qui tendrait à faire passer le verrou de sa troisième position où il est illustré sur la Fig.3C à sa pre­mière position illustrée sur la Fig.3A, il en serait empêché par l'engagement des arêtes 71 dans les crans 72 qui assure la condamnation du verrou en position verrouillée. Ceci donne l'assurance que la boucle fermée et verrouillée ne pourra pas s'ouvrir malen­contreusement et intempestivement à l'instant précis où elle doit remplir son office : retenir impéra­tivement l'occupant sur son siège.If the tensile force T on the bolt and transmitted to the bolt develops a component which would tend to move the bolt from its third position where it is illustrated in Fig.3C to its first position illustrated in Fig.3A, it would be prevented by the engagement of the edges 71 in the notches 72 which ensures the locking of the lock in the locked position. This gives the assurance that the closed and locked loop cannot accidentally and inadvertently open at the precise moment. where it must fulfill its office: imperatively retain the occupant in his seat.

Le verrou est conçu de manière que son bec 301 et ses jambes 340 se déforment élastiquement pour neutraliser le jeu

Figure imgb0004
initial prédéterminé lorsque une telle traction dépasse une valeur prédéterminée choisie, en passant de sa deuxième à sa troisième position.The lock is designed so that its beak 301 and its legs 340 deform elastically to neutralize the play
Figure imgb0004
initial predetermined when such traction exceeds a selected predetermined value, passing from its second to its third position.

On se reportera maintenant aux Fig.4A et 4B où ce mode de réalisation de la boucle selon l'inven­tion est illustré schématiquement dans différentes positions qui correspondant à la phase d'ouverture de la boucle.We will now refer to Fig.4A and 4B where this embodiment of the loop according to the invention is illustrated schematically in different positions which correspond to the opening phase of the loop.

Pour ouvrir la boucle fermée et verrouillée et la faire passer de la situation où elle est illus­trée sur la Fig.3B à celle où elle est illustrée sur la Fig.3A, on presse sur le bouton d'actionnement 50 à l'encontre de la sollicitation du ressort 540. En faisant ceci le bouton d'actionnement quitte sa po­sition inactive, vers laquelle il est normalement sol­licité par le ressort 540, et se dirige vers une po­sition active dans laquelle il fait passer le verrou 30 dans se première position.To open the closed and locked loop and move it from the situation where it is illustrated in Fig.3B to that where it is illustrated in Fig.3A, the actuation button 50 is pressed against the biasing of the spring 540. By doing this the actuation button leaves its inactive position, towards which it is normally biased by the spring 540, and goes to an active position in which it causes the latch 30 to pass into its first position.

Comme on le comprend et on le voit, en re­culant de sa position inactive à sa position active, les rainures 503 glissant contre les oreilles 220, les cames 75 du bouton d'actionnement 50 viennent recon­trer les contre-cames 73 des ailes 302 du verrou 30 qu'elles soulèvent. Le verrou bascule autour de son articulation 230 à l'encontre du couple développé par le ressort 460. En basculant le bec 301 se dégage de la découpe 104 du pène qui est libéré et repoussé par le guide-éjecteur 40 hors de la gâche. Le basculement du verrou est limité par la rencontre de l'une des ailes 302 avec la nervure 531 de la barrette 530 du bouton d'actionnement 50.As can be understood and seen, moving back from its inactive position to its active position, the grooves 503 sliding against the ears 220, the cams 75 of the actuation button 50 come into contact with the cams 73 of the wings 302 of the latch 30 they raise. The lock swings around its articulation 230 against the torque developed by the spring 460. By tilting the spout 301 emerges from the cutout 104 of the bolt which is released and pushed back by the ejector guide 40 out of the keeper. The tilting of the lock is limited by the encounter of one of the wings 302 with the rib 531 of the bar 530 of the actuation button 50.

Dans la position où la boucle est illustrée sur la Fig.3B il n'y a que deux points de contact entre le verrou 30 et l'embase 20 ; ces points sont ceux qui sont situés au niveau de l'articulation 230. Cette situation est celle qui prévaut lorsque la traction qui s'exerce sur la boucle ne dépasse pas une valeur qui est de l'ordre de 50 à 60 daN environ. C'est le cas où un occupant est "suspendu" par la sangle de la ceinture dans un véhicule versé sur le côté ou retourné sur le toît ; c'est le poids de cet occupant qui exerce une traction sur la boucle.In the position where the loop is illustrated in Fig.3B there are only two points of contact between the latch 30 and the base 20; these points are those which are located at the joint 230. This situation is that which prevails when the traction exerted on the loop does not exceed a value which is of the order of approximately 50 to 60 daN. This is the case where an occupant is "suspended" by the belt strap in a vehicle poured to the side or turned over on the roof; it is the weight of this occupant which exerts traction on the loop.

Dans la situation illustrée sur la Fig.3C qui correspond par exemple à celle où la traction exercée sur la boucle est supérieure à 100 daN pendant les brefs instants d'une collision relativement brutale, on voit que le nombre des points de contact entre le verrou et l'embase a été notablement augmenté. En effet, outre ceux qui résultent de l'articulation 230 précédemment indiqués s'y ajoutent les deux points de contacts des arêtes et des crans ainsi que celui du bec avec la fente de l'ouverture du fond.In the situation illustrated in Fig.3C which corresponds for example to that where the traction exerted on the loop is greater than 100 daN during the brief moments of a relatively brutal collision, we see that the number of points of contact between the latch and the base has been significantly increased. In fact, in addition to those which result from the hinge 230 previously indicated, there are added the two points of contact of the edges and notches as well as that of the spout with the slot in the opening of the bottom.

On se reportera maintenant aux Fig.5 et 6. On peut y constater immédiatement que la différence essentielle réside dans le fait que le ressort 540 qui sollicite élastiquement le bouton d'actionnement 50 n'agit plus directement sur le boîtier 600 de l'en­veloppe protectrice 60 mais sur un téton 331 d'une patte 330 ménagée sur le verrou 30 et, plus particu­lièrement, sur la face de la plaquette de celui-ci qui est opposée à celle sur laquelle sont dirigés le bec 301, les ailes 302 et le socle 320. Pour le reste le fonctionnement est exactement le même.We will now refer to Fig.5 and 6. We can immediately see that the essential difference lies in the fact that the spring 540 which resiliently biases the actuation button 50 no longer acts directly on the housing 600 of the envelope protective 60 but on a stud 331 with a tab 330 formed on the latch 30 and, more particularly, on the face of the plate thereof which is opposite to that on which the spout 301, the wings 302 and the base 320. For the rest the operation is exactly the same.

Le détecteur 80 de fermeture de la boucle est monté comme cela ressort des figures du dessin. Ce détecteur comprend par exemple un micro-interrupteur 800 dont l'organe de manoeuvre 801 est placé sur la trajectoire de l'une des ailes 302 du verrou. Cet interrupteur est tel que lorsque le verrou occupe sa première position de libération où le pène est dé­verrouilé, l'interrupteur est actionné pour mettre en oeuvre un circuit de signalisation non dessiné. Par contre lorsque le verrou n'occupe pas sa première position, son aile 302 n'agit plus sur l'organe de manoeuvre de l'interrupteur et celui-ci est au repos. Ce circuit de signalisation est de tout type connu pour déclencher un signal acoustique et/ou lumineux dans le véhicule indiquant qu'un occupant du véhicule n'a pas mis et attaché sa ceinture de sécurité. Cet interrupteur peut être du type contact-travail ou contact-repos.The loop closing detector 80 is mounted as shown in the figures in the drawing. This detector comprises, for example, a microswitch 800 whose operating member 801 is placed on the path of one of the wings 302 of the lock. This switch is such that when the lock occupies its first release position where the bolt is unlocked, the switch is actuated to implement an undrawn signaling circuit. On the other hand, when the lock does not occupy its first position, its wing 302 no longer acts on the operating member of the switch and the latter is at rest. This signaling circuit is of any type known to trigger an acoustic and / or light signal in the vehicle indicating that an occupant of the vehicle has not put on and fastened their seat belt. This switch can be of the contact-work or contact-rest type.

Le dispositif d'éclairage 90 qui comprend une lampe à filament miniature ou une diode électro­luminescente par exemple, est orienté de manière à illuminer, de préférence, le chenal 200 et l'embou­chure 510 afin de faciliter l'insertion du pène dans la gâche. L'allumage et l'extinction de ce dispositif d'éclairage sont par exemple commandés simultanément avec l'allumage et l'extinction du plafonnier du véhicule automobile lors de l'ouverture ou de la fer­meture des portes ou bien lors de la mise en oeuvre des feux de stationnement et/ou de circulation du véhicule. Le circuit électrique classique n'est pas dessiné.The lighting device 90 which comprises a miniature filament lamp or a light-emitting diode for example, is oriented so as to preferably illuminate the channel 200 and the mouth 510 in order to facilitate the insertion of the bolt into the keeper. The lighting and extinction of this lighting device are for example controlled simultaneously with the lighting and extinction of the overhead light of the motor vehicle during the opening or closing of the doors or else during the implementation. parking and / or vehicle traffic lights. The classic electrical circuit is not drawn.

Le guide-éjecteur 40, le bouton d'actionne­ment 50 et l'enveloppe protectrice 60 sont, par exemple, fabriqués en matière synthétique et sont obtenus par exemple par moulage. Le bouton d'action­nement 50 est, de préférence, translucide de manière à rendre perceptible le rayonnement du dispositif d'é­clairage.The ejector guide 40, the actuation button 50 and the protective cover 60 are, for example, made of synthetic material and are obtained for example by molding. The actuation button 50 is preferably translucent so as to make the radiation from the lighting device perceptible.

Le boîtier 600 de l'enveloppe protectrice 60 peut être fait d'un seul tenant venu de moulage ou fait en deux demi-coquilles assemblées de toute ma­nière connue convenable.The housing 600 of the protective envelope 60 can be made in one piece from molding or made in two half-shells assembled in any suitable known manner.

Le pène 10, l'embase 20 et le verrou 30 sont, de préférence, faits en métal et obtenus par estampage, découpe et pliage de tôles métalliques comme cela est connu. Si l'on compare les modes de réalisation des Fig.1 et 5 on voit que le verrou 30 de la Fig.1 est plus facile à fabriquer que celui illus­tré sur la Fig.5. A ce propos un soin tout particulier doit être apporté au choix du matériau dont est fait le verrou 30 pour qu'il possède l'élasticité néces­saire pour l'invention. La valeur du jeu

Figure imgb0005
, les di­mensions et les sections des bec et jambes sont étroitement dépendantes des propriétés mécaniques de ce matériau et le choix de ce dernier est aussi tri­butaire des techniques de fabrication retenues liées elles-mêmes aux équipements et outillages disponibles.The bolt 10, the base 20 and the latch 30 are preferably made of metal and obtained by stamping, cutting and bending of metal sheets as is known. If we compare the embodiments of Fig.1 and 5 we see that the lock 30 of Fig.1 is easier to manufacture than that illustrated in Fig.5. In this regard, special care must be taken in choosing the material from which the lock 30 is made so that it has the elasticity necessary for the invention. The value of the game
Figure imgb0005
, the dimensions and the sections of the beaks and legs are closely dependent on the mechanical properties of this material and the choice of the latter is also dependent on the manufacturing techniques chosen which are themselves linked to the equipment and tools available.

On comprend tous les avantages de la boucle pour ceinture de sécurité suivant l'invention qui avec un minimum de constituants relativement faciles à fabriquer par des techniques classiques a cependant une fiabilité de fonctionnement accrue du fait de l'existence d'une position de condamnation du verrou en position verrouillée qui est obtenue sans adjonction de la moindre pièce supplémentaire.We understand all the advantages of the seat belt buckle according to the invention which with a minimum of components relatively easy to manufacture by conventional techniques, however, has increased operating reliability due to the existence of a locking position of the lock in the locked position which is obtained without the addition of any additional parts.

Claims (16)

1. Boucle pour ceinture de sécurité, notam­ment de véhicule automobile terrestre, qui est destinée à réunir une sangle à un point d'ancrage et qui est composée notamment d'un pène (10) et d'une gâche comprenant, entre autres, une embase (20) et portés par celle-ci un verrou (30), un guide-éjecteur (40), un bouton d'actionnement (50) et, s'il y a lieu, une enveloppe protectrice (60) où cette embase (20) délimite un chenal (200) destiné à recevoir au moins partiellement le pène (10), ce verrou (30) est monté sur cette embase (20) à l'aide d'une articulation (230) qui lui permet de se déplacer pratiquement seulement par basculement de manière à être mobile entre au moins deux positions vers lesquelles il est sollicité élastiquement, une première position de libération où le pène (10) est déverrouillé et une deuxième position de retenue où le pène (10) est verrouillé sur la gâche par le verrou (30), ce guide-­éjecteur (40) présente un logement (400) destiné à recevoir au moins partiellement le pène (10) et est monté sur cette embase (20) pour pouvoir s'y déplacer en translation de manière à être mobile entre une position de repos vers laquelle il est normalement sollicité élastiquement et qu'il occupe lorsque le verrou (30) est dans sa première position et une position armée qu'il occupe lorsque le verrou (30) n'est pas dans sa première position, ce bouton d'actionnement (50) est monté sur cette embase (20) pour pouvoir s'y déplacer en translation de manière à être mobile entre une position inactive vers laquelle il est normalement sollicité élastiquement et une position active dans laquelle il fait passer le verrou (30)dans sa première position, caractérisée en ce que ce verrou (30) est déformable élastiquement vers une troisième position de condamnation où il s'assujettit directement à l'embase (20) lorsqu'il occupe sa deuxième position et que la boucle verrouillée est soumise à un effort tendant à l'ouvrir supérieur à une valeur déterminée et en ce que des moyens de commande et de blocage (70) associent ce bouton d'actionnement (50) et ce verrou (30) et cette embase (20) de manière que dans un premier mode, quand un effort tendant à ouvrir la boucle ne dépasse pas cette valeur déterminée, lorsque le bouton d'actionnement (50) passe de sa position inactive à sa position active le verrou (30) se déplace de sa deuxième à sa première position pour libérer le pène (10) et le guide-éjec­teur (40) passe de sa position armée à sa position de repos pour éjecter le pène (10) libéré de l'embase (20) et dans un second mode, quand un effort tendant à ouvrir la boucle égale ou dépasse cette valeur déterminée, le bouton d'actionnement (50) ne peut pas passer de sa position inactive à sa position active pour déloger le verrou (30) de sa troisième position, lui faire franchir sa deuxième position et gagner sa première position.1. Buckle for a seat belt, in particular for a land motor vehicle, which is intended to join a strap to an anchor point and which is composed in particular of a bolt (10) and a keeper comprising, inter alia, a base (20) and carried by it a lock (30), an ejector guide (40), an actuation button (50) and, if necessary, a protective casing (60) where this base (20) delimits a channel (200) intended to receive at least partially the bolt (10), this lock (30) is mounted on this base (20) using a joint (230) which allows it to be move practically only by tilting so as to be movable between at least two positions towards which it is resiliently biased, a first release position where the bolt (10) is unlocked and a second retaining position where the bolt (10) is locked on the keeper by the latch (30), this ejector guide (40) has a housing (400) intended to receive at least partially the bolt (10) and is mounted on this base (20) in order to be able to move therein in translation so as to be movable between a rest position towards which it is normally elastically stressed and which it occupies when the latch (30) is in its first position and an armed position which it occupies when the latch (30) is not in its first position, this actuation button (50) is mounted on this base (20) in order to be able to move there in translation so as to be movable between an inactive position towards which it is normally elastically stressed and an active position in which it causes the bolt (30) to pass into its first position, characterized in that this latch (30) is elastically deformable towards a third locking position where it is subjected directly to the base (20) when it occupies its second position and that the locked loop is subjected to a force tending to open it greater than a determined value and in that control and blocking means (70) combine this actuation button (50) and this latch (30) and this base (20) so that in a first mode, when a tending force to open the loop does not exceed this determined value, when the actuation button (50) changes from its inactive position to its active position the latch (30) moves from its second to its first position to release the bolt (10) and the ejector guide (40) passes from its armed position to its rest position to eject the bolt (10) released from the base (20) and in a second mode, when an effort tending to open the loop equals or exceeds this determined value, the actuation button (50) cannot go from its p inactive position in its active position to dislodge the lock (30) from its third position, make it cross its second position and gain its first position. 2. Boucle selon la revendication 1, carac­térisée en ce que les moyens de commande et de blocage (70) comprennent au moins une came (75) portée par le bouton d'actionnement (50) et coopérant avec au moins une contre-came (73) du verrou (30) pour le faire mouvoir vers sa première position et au moins un cran (72) de condamnation ménagé sur l'embase (20) et coopérant avec une arête (71) du verrou (30) pour déterminer la troisième position de ce dernier.2. Buckle according to claim 1, characterized in that the control and blocking means (70) comprise at least one cam (75) carried by the actuation button (50) and cooperating with at least one cam follower ( 73) of the latch (30) to make it move towards its first position and at least one locking notch (72) formed on the base (20) and cooperating with an edge (71) of the latch (30) to determine the third position of the latter. 3. Boucle selon la revendications 2, carac­térisée en ce que le verrou (30) a la configuration d'une plaquette sur deux des côtés de laquelle sont ménagées des ailes (302) où sont situées ces arêtes (71) et contre-cames (73).3. Buckle according to claim 2, characterized in that the latch (30) has the configuration a plate on two sides of which are provided wings (302) where these edges (71) and cams (73) are located. 4. Boucle selon la revendication 3, carac­térisée en ce que le verrou (30) comprend, orientés vers la même face de la plaquette que les ailes (302), un bec (301) destiné à coopérer avec le pène (10) pour le verrouiller et un socle (320) destiné à recevoir la sollicitation élastique.4. Buckle according to claim 3, characterized in that the lock (30) comprises, oriented towards the same face of the plate as the wings (302), a spout (301) intended to cooperate with the bolt (10) for the lock and a base (320) intended to receive the elastic stress. 5. Boucle selon la revendication 4, carac­térisée en ce que la sollicitation élastique du verrou (30) et celle du guide-éjecteur (40) sont assurées par un ressort unique (460).5. Buckle according to claim 4, characterized in that the elastic stress of the latch (30) and that of the ejector guide (40) are provided by a single spring (460). 6. Boucle selon l'une quelconque des reven­dications 1 à 5, caractérisée en ce que la sollici­tation élastique du bouton d'actionnement (50) vers sa position inactive est assurée par un ressort (540) qui prend appui sur l'enveloppe protectrice (60).6. Buckle according to any one of claims 1 to 5, characterized in that the elastic stressing of the actuation button (50) towards its inactive position is ensured by a spring (540) which bears on the protective casing ( 60). 7. Boucle selon l'une quelconque des reven­dications 1 à 5, caractérisée en ce que la sollicita­tion élastique du bouton d'actionnement (50) vers sa position inactive est assurée par un ressort (540) qui pend appui sur le verrou (30).7. Buckle according to any one of claims 1 to 5, characterized in that the elastic stressing of the actuating button (50) towards its inactive position is ensured by a spring (540) which hangs pressing on the latch (30) . 8. Boucle selon la revendication 7 dans la mesure où elle est rattachée à l'une quelconque des revendications 3 et 4, caractérisé en ce que le verrou (30) comprend, orientée à l'opposé de cette face de la plaquette, une patte (320) sur laquelle prend appui le ressort (540).8. Buckle according to claim 7 insofar as it is attached to any one of claims 3 and 4, characterized in that the latch (30) comprises, oriented opposite this face of the plate, a tab (320) on which the spring (540) is supported. 9. Boucle selon l'une quelconque des reven­dications 1 à 8, caractérisée en ce que l'articulation (230) comprend des tourillons (310) portés par le ver­rou (30) et des paliers (231) en forme de L ménagés dans l'embase (20).9. Buckle according to any one of claims 1 to 8, characterized in that the articulation (230) comprises pins (310) carried by the latch (30) and bearings (231) in the form of L formed in the '' base (20). 10. Boucle selon l'une quelconque des reven­dications 1 à 9, caractérisée en ce qu'elle comprend un détecteur (80) de fermeture de la boucle logé dans l'enveloppe protectrice (60).10. Buckle according to any one of claims 1 to 9, characterized in that it comprises a detector (80) for closing the loop housed in the protective envelope (60). 11. Boucle selon la revendication 10, carac­térisée en ce que le détecteur (80) comprend un inter­rupteur (800) dont l'organe de manoeuvre (801) est actionné par le verrou (30).11. Buckle according to claim 10, characterized in that the detector (80) comprises a switch (800), the operating member (801) of which is actuated by the latch (30). 12. Boucle selon la revendication 10 dans la mesure où elle rattachée aux revendications 3 et sui­vantes, caractérisée en ce que l'organe de manoeuvre (801) est placé sur la trajectoire de l'une des ailes (302) du verrou (30) lorsque celui-ci se déplace de l'une à l'autre de ses positions.12. Buckle according to claim 10 insofar as it relates to claims 3 and following, characterized in that the operating member (801) is placed on the path of one of the wings (302) of the latch (30) when the latter moves from one of its positions to the other. 13. Boucle selon l'une quelconque des reven­dications 1 à 12, caractérisée en ce qu'elle comprend un dispositif d'éclairage (90) logé dans l'enveloppe protectrice (60).13. Buckle according to any one of claims 1 to 12, characterized in that it comprises a lighting device (90) housed in the protective envelope (60). 14. Boucle selon l'une quelconque des reven­dications 10 à 13, caractérisée en ce que le détecteur (80) et le dispositif d'éclairage (90) sont montés sur un support (89) commun fixé sur l'embase (20).14. Loop according to any one of claims 10 to 13, characterized in that the detector (80) and the lighting device (90) are mounted on a common support (89) fixed on the base (20). 15. Boucle selon l'une quelconque des reven­dications 13 ou 14, caractérisée en ce que le dispo­sitif d'éclairage (90) est disposé de manière à illu­miner au moins le chenal (200 ) du pène (10).15. Buckle according to any one of claims 13 or 14, characterized in that the lighting device (90) is arranged so as to illuminate at least the channel (200) of the bolt (10). 16. Boucle selon l'une quelconque des reven­dications 3 à 15, caractérisée en ce que la plaquette présente deux jambes (340) et en ce que la déformation élastique du verrou se produit au niveau de ces jambes (340) et/ou de ce bec (301).16. Buckle according to any one of claims 3 to 15, characterized in that the plate has two legs (340) and in that the elastic deformation of the lock occurs at these legs (340) and / or this spout (301).
EP89401205A 1988-05-06 1989-04-27 Buckle for safety belts Expired - Lifetime EP0342089B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806170 1988-05-06
FR8806170A FR2630984B1 (en) 1988-05-06 1988-05-06 SIMPLIFIED IMPROVED BUCKLE FOR SEAT BELT

Publications (2)

Publication Number Publication Date
EP0342089A1 true EP0342089A1 (en) 1989-11-15
EP0342089B1 EP0342089B1 (en) 1992-06-24

Family

ID=9366099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401205A Expired - Lifetime EP0342089B1 (en) 1988-05-06 1989-04-27 Buckle for safety belts

Country Status (6)

Country Link
US (1) US4928366A (en)
EP (1) EP0342089B1 (en)
KR (1) KR960013455B1 (en)
DE (1) DE68901891T2 (en)
ES (1) ES2034675T3 (en)
FR (1) FR2630984B1 (en)

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EP0566856A1 (en) * 1992-04-23 1993-10-27 INDIANA MILLS & MANUFACTURING, INC. End release buckle with pivoting pawl release
WO2007014657A1 (en) * 2005-07-30 2007-02-08 Autoliv Development Ab Belt buckle

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US5210915A (en) * 1989-11-06 1993-05-18 European Components Corporation Seat belt buckle
JPH03125408U (en) * 1990-03-30 1991-12-18
DE9103556U1 (en) * 1991-03-22 1991-06-27 TRW Repa GmbH, 7077 Alfdorf Lock for vehicle seat belts
US5438492A (en) * 1993-03-26 1995-08-01 Alliedsignal Inc. End release seat belt buckle
US5522619A (en) * 1995-02-01 1996-06-04 Alliedsignal Inc. End release seat belt buckle having an inertia-sensitive locking mechanism
GB2317916A (en) * 1996-10-07 1998-04-08 Europ Component Co Ltd Seat belt buckle
KR19980034512A (en) * 1996-11-07 1998-08-05 단홍덕 Simplified belt buckle
US6079744A (en) * 1998-04-24 2000-06-27 Breed Automotive Technology, Inc. Device to detect seat belt buckle status
US7296825B1 (en) 1999-05-11 2007-11-20 Autoliv Asp, Inc. Multiple output buckle switch
EP1077037B1 (en) * 1999-08-17 2004-10-27 Delphi Automotive Systems Sungwoo Co., Ltd. Seat belt buckle
US6550112B2 (en) * 2001-01-18 2003-04-22 Trw Occupant Restraint Systems Gmbh & Co. Kg Closure for a seat belt
US6558027B2 (en) * 2001-03-02 2003-05-06 Trw Vehicle Safety Systems Inc. Illuminated seat belt buckle
JP4414611B2 (en) * 2001-05-25 2010-02-10 株式会社東海理化電機製作所 Buckle device
JP4748709B2 (en) 2005-05-19 2011-08-17 タカタ株式会社 Seat belt device
JP4748711B2 (en) * 2005-06-06 2011-08-17 タカタ株式会社 Seat belt mounting device
JP2007014359A (en) * 2005-06-15 2007-01-25 Takata Corp Buckle device and seat belt apparatus
US7395585B2 (en) * 2005-08-24 2008-07-08 Key Safety Systems, Inc Buckle assembly
US9974365B2 (en) * 2014-11-07 2018-05-22 Ford Global Technologies, Llc Buckle guide
TWI684541B (en) * 2019-01-11 2020-02-11 智崴資訊科技股份有限公司 A buckle device

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FR2386278A1 (en) * 1977-04-04 1978-11-03 Nsk Warner Kk SEAT BELT BUCKLE
GB2104141A (en) * 1981-06-22 1983-03-02 Tokai Rika Co Ltd Seat belt buckle
EP0122238A1 (en) * 1983-03-03 1984-10-17 Ab Stil-Industri A vehicle safety belt lock having an electric contact
FR2553638A1 (en) * 1983-10-24 1985-04-26 Klippan France Sa Safety-belt buckle, with anti-inertia safety device
EP0141734A2 (en) * 1983-10-24 1985-05-15 Klippan France S.A. Safety belt buckle with detection and signalling means of the position of the locking member
DE3344041A1 (en) * 1983-12-06 1985-06-20 Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst Safety-belt buckle
US4624034A (en) * 1984-10-23 1986-11-25 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Buckle apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566856A1 (en) * 1992-04-23 1993-10-27 INDIANA MILLS & MANUFACTURING, INC. End release buckle with pivoting pawl release
WO2007014657A1 (en) * 2005-07-30 2007-02-08 Autoliv Development Ab Belt buckle

Also Published As

Publication number Publication date
KR960013455B1 (en) 1996-10-05
ES2034675T3 (en) 1993-04-01
US4928366A (en) 1990-05-29
EP0342089B1 (en) 1992-06-24
KR890016936A (en) 1989-12-14
DE68901891T2 (en) 1993-01-14
FR2630984A1 (en) 1989-11-10
FR2630984B1 (en) 1991-04-12
DE68901891D1 (en) 1992-07-30

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