EP0581134B1 - Boucle de sécurité pour ceintures de sécurité de véhicules - Google Patents

Boucle de sécurité pour ceintures de sécurité de véhicules Download PDF

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Publication number
EP0581134B1
EP0581134B1 EP93111395A EP93111395A EP0581134B1 EP 0581134 B1 EP0581134 B1 EP 0581134B1 EP 93111395 A EP93111395 A EP 93111395A EP 93111395 A EP93111395 A EP 93111395A EP 0581134 B1 EP0581134 B1 EP 0581134B1
Authority
EP
European Patent Office
Prior art keywords
tongue
latch tongue
latch
delatching
button
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.)
Expired - Lifetime
Application number
EP93111395A
Other languages
German (de)
English (en)
Other versions
EP0581134A3 (fr
EP0581134A2 (fr
Inventor
Jürgen Mitzkus
Robert Kopetzky
Ron Clarke
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.)
Takata Europe Vehicle Safety Technology GmbH
Takata Europe GmbH
Original Assignee
Takata Europe Vehicle Safety Technology GmbH
Takata Europe GmbH
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 Takata Europe Vehicle Safety Technology GmbH, Takata Europe GmbH filed Critical Takata Europe Vehicle Safety Technology GmbH
Publication of EP0581134A2 publication Critical patent/EP0581134A2/fr
Publication of EP0581134A3 publication Critical patent/EP0581134A3/xx
Application granted granted Critical
Publication of EP0581134B1 publication Critical patent/EP0581134B1/fr
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
    • 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

Definitions

  • Such a seat belt buckle is known from US-A-4,597,141. If such seat belt buckles are unloaded when closed, e.g. then occurs when the lap belt is closed in the middle seat of the back seat of a motor vehicle without a vehicle occupant in this seat, rattling noises occur in known seat belt buckles when the vehicle is moving, which can be attributed to the fact that the latch tongue is generally easy to play is inserted into the buckle of the seat belt buckle.
  • the aim of the present invention is to provide a seat belt buckle of the type mentioned at the outset, in which the rattling noises to be feared when the lock is not under load are avoided in the simplest way without the need for additional complex components.
  • the invention provides that the release button is arranged such that it can be pivoted slightly against the surface of the inserted latch tongue about a transverse axis lying between the latch tongue path and the line of action of the release button spring arrangement such that it is pressed lightly against the surface of the latch tongue by the release button spring arrangement that the bolt tongue is weakly pressed against the opposite limit while eliminating the slight play and thus a clattering movement of the bolt tongue in the bolt tongue path is avoided.
  • the unlocking button which can essentially only be displaced along the insertion direction of the locking tongue, is additionally given a slight degree of freedom of movement, which can be achieved with minimal effort, since the unlocking button is only operated at a stop that defines the axis of rotation. must be present and otherwise only the game required for the limited rotational movement must be provided.
  • the related torque can be selected in conjunction with the biasing force of the release button spring arrangement so that no rattling noises are generated by the bolt tongue located in the bolt tongue path in all vehicle vibrations.
  • a major problem with the known seat belt buckles with rattling noise prevention is that the components provided for the suppression of play hinder or at least make it more difficult to insert the latch tongue into the latch tongue web or snap the latch tongue into the latch position.
  • Another object of the invention is therefore to avoid this disadvantage and not to hinder the insertion of the latch tongue by the rattling noise-reducing arrangement.
  • the invention advantageously uses an ejector which is movable in the direction of insertion of the locking tongue and is arranged in alignment with the locking tongue path, which is biased by a spring arrangement in the direction of the locking tongue, rests on the free end face when the locking tongue is inserted and ejects it from the locking tongue path after unlocking the locking tongue .
  • the invention provides that the ejector acts upon the release button at a distance from the transverse axis after ejection of the locking tongue and thereby generates a torque which is opposite to the torque generated by the release button spring arrangement and is absolutely greater than this.
  • the spring arrangement of the ejector is also used to eliminate the slight play Torque generated by the release button spring arrangement overcompensate in such a way that the release button is located outside the latch tongue path when the latch tongue is ejected, so that unimpeded insertion of the latch tongue into the latch tongue path is possible. Only when the inserted locking tongue rests on the ejector and lifts it off the unlocking key when it is inserted further into the locking tongue path, does the torque on the unlocking key, which eliminates the slight play, become effective again, and the unlocking key is advantageously pressed against the surface of the locking tongue again. to avoid rattling.
  • the invention in a preferred embodiment thus creates not only a rattle-free arrangement of the locking tongue in the locking tongue path, but also unimpeded insertion of the locking tongue into the locking tongue path of the lock part simply by multiple use of existing components and their suitable arrangement.
  • a practical implementation of the invention is characterized in that the ejector has a stop which interacts with a counter-stop on the unlocking button.
  • the stop may be on the opposite side of the transverse axis as the release button spring assembly.
  • the ejector can also act on the free end face of the locking tongue via a pair of inclined surfaces, such that the locking tongue is additionally pressed at this end against the limit of the locking tongue path.
  • a seat belt buckle according to the invention consists of a buckle part 11, which is fastened to the vehicle chassis 12 via an only schematically indicated intermediate piece 32, and a locking tongue 13, which is preferably also fastened to the vehicle chassis 12 via two strap pieces 33, 34.
  • the belt pieces 33, 34 and the belt buckle with the intermediate piece 32 enclose an occupant of a motor vehicle.
  • the lock part 11 contains a bolt 16, indicated only by dashed lines, which can be displaced transversely to a bolt tongue track 20 against the force of a spring arrangement 15.
  • the bolt 16 is shown in the state inserted into the bolt opening 21 of the bolt tongue 13 inserted into the bolt tongue track 20, in which it secures the bolt tongue 13 against being pulled out of the lock part 11.
  • the bolt 16 is illustrated in the position withdrawn against the force of the spring arrangement 15, in which the bolt tongue track 20 is released for the insertion or withdrawal of the bolt tongue 13.
  • the locking bar 16 is withdrawn from the locking position according to FIG. 1 into the unlocking position according to FIG. 2 by pressing an unlocking button 18 which is parallel to the locking tongue track 20 and perpendicular to the direction of movement of the bolt 16 is arranged displaceably in the lock part housing 35.
  • the unlocking button 18 is displaceable by an unlocking button spring arrangement 17 in the direction of arrow F 1 , which coincides with the line of action 17 'of the spring arrangement 17, into its inactive position, in which it is held by a cross pin 25 which is fixed to the housing 35 is connected and passes through an elongated hole 14, the longitudinal axis of which extends in the direction of movement of the unlocking button 18.
  • the unlocking button 18 is pressed by the spring arrangement 17 with the right edge of the elongated hole 14 in FIGS. 1 and 2, where a transverse axis 36 fixed to the housing is deposited.
  • the release button 18 can pivot in a narrowly limited angular range.
  • the pivoting range is so limited that the unlocking button 18 exits the latching tongue track 20 slightly upward with its lower contact surface 26 when pivoting in a clockwise direction in FIG. 1, so that the latching tongue track 20 is completely free for the insertion of the latch tongue 13.
  • the unlocking button 18 should be pivotable under the action of the spring arrangement 17 to such an extent that it rests with slight pressure on the surface 24 of the locking tongue 13 and presses it slightly against the opposite limit 27 of the locking tongue web 20.
  • an ejector 23 is arranged in the housing 35 so as to be displaceable in the insertion direction of the locking tongue 13, which cooperates via an inclined surface 30 with the free end face 31 of the locking tongue 13 such that it engages this end is slightly pressed against the lower limit 27 in FIGS. 1 and 2.
  • the effect of the unlocking button 18, which can be pivoted to a limited extent, is supplemented at the rear end of the locking tongue 13.
  • the ejector 23 is spring-loaded in the direction of the locking tongue 13 by an ejector spring 22 supported on the housing 35 and has a stop 28 pointing towards the locking tongue 13, which interacts with a counter-stop 29 on the unlocking button 18.
  • the counter stop 29 is located on the opposite side of the transverse axis 25 as the line of action 17 ′ of the spring arrangement 17.
  • the locking tongue 13 When the seat belt buckle according to FIG. 1 is closed, the locking tongue 13 is inserted into the locking tongue web 20 up to the locking position. In this case, the free end face 31 of the locking tongue 13 presses the ejector 30 into the position shown in FIG. 1 while compressing the ejector spring 22.
  • the inclined surface 30 brings the free end face 31 of the locking tongue 13 against the boundary 27 of the locking tongue track 20 to the system, while the unlocking button 18 is pressed with its contact surface 24 against the surface 26 of the locking tongue 13, so that this area of the locking tongue 13 is in contact with the Limitation 27 creates.
  • any desired pressing force F 3 can be realized.
  • the optimum pressing force for the function can also be generated there by a suitable choice of the inclined surface 30.
  • the ejection movement of the ejector 23 is limited in that its stop 28 abuts the lower counter-stop 29 of the unlocking button 18. From this moment on, the ejector spring 22, which must not yet be fully relaxed, exerts a force F 2 on the stop 29. This creates a torque F 2 ⁇ d 2 about the effective pivot axis 36, where d 2 is the distance of the effective pivot axis 36 from the line of action 22 ′ of the spring 22.
  • the spring arrangement 17 continues to exert the torque F 1 ⁇ d 1 (FIG. 1) on the release button 18 in the opposite direction.
  • the latch tongue web 20 is made completely free for reinserting the latch tongue 13 after the latch tongue 13 has been ejected. Only when the end face 31 of the locking tongue 13 abuts against the inclined surface 30 of the ejector 23 and the stop 28 lifts off from the counter-stop 29 during this insertion, is the torque F 2 ⁇ d 2 made to disappear, whereupon the torque F 1 ⁇ d 1 come into effect and can bring the contact surface 24 to bear against the surface 26 of the locking tongue 13.
  • Fig. 3 illustrates the components of the lock part 11 described there in a position where the release button 18 is lifted from the transverse axis 25 when the locking tongue is not in the lock part 11.
  • the effective pivot axis 36 is rendered ineffective, so that the torques exerted by the spring arrangements 17, 22 are not effective can be.
  • the spring 22 causes the unlocking button 18 to pivot in the direction of arrow P into the upper limit position, which is caused by striking Stops 37 of the unlock button 18 on counter stops 38 of the housing 35 is ensured.
  • the spring arrangement 17 can move the unlocking button 18 again into the opposite angular position, where the action surface 24 comes to rest on the surface 26 of the locking tongue 13 (not shown in FIG. 3) and thereby prevents rattling.

Landscapes

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

Claims (5)

  1. Serrure pour ceinture de sécurité destinée à un système de ceinture de sécurité dans des véhicules automobiles, comprenant une partie de serrure (11) susceptible d'être fixée sur le châssis de véhicule (12), et une languette de verrouillage (13) susceptible d'être enfichée avec un léger jeu dans la partie de serrure (11), ladite languette de verrouillage pouvant être reliée au moyen de ceintures d'attache (33, 34) avec le châssis de véhicule (12), ladite partie de serrure (11) comprenant :
    - un verrou (16) capable d'être déplacé transversalement à la direction d'enfichage de la languette de verrouillage (13), et sollicité dans la direction de verrouillage par un agencement à ressort (15), et
    - un bouton de déverrouillage (18) capable de se déplacer parallèlement à la direction d'enfichage de la languette de verrouillage (13) à l'encontre de la force d'un ressort (17), et qui délimite le trajet d'introduction de ladite languette sur un côté, ledit bouton étant capable, lorsqu'il est sollicité a l'encontre de la force d'un ressort (17) de déplacer le verrou (16) hors du trajet de la languette de verrouillage (20), ou hors de l'ouverture de verrouillage (21) de la languette de verrouillage (13), par l'intermédiaire d'une transmission (19),
    caractérisée en ce que le bouton de déverrouillage (18) est agencé de façon à pouvoir pivoter de façon limitée autour d'un axe transversal disposé entre le trajet de la languette de verrouillage (20) et la ligne d'action (17') de l'agencement à ressort (17) du bouton de déverrouillage, de manière que ledit bouton de déverrouillage est légèrement poussé par l'agencement à ressort (17) contre la surface (26) de la languette de verrouillage enfichée (13), de manière que la languette de verrouillage (13) est faiblement poussée, en supprimant le léger jeu, contre la délimitation opposée (27), et qu'on évite ainsi un déplacement de battement de la languette de verrouillage (13) dans le trajet (20) de la languette de verrouillage.
  2. Serrure pour ceinture de sécurité selon la revendication 1, dans laquelle la partie de serrure (11) comprend en outre un éjecteur (23) agencé dans une direction en alignement avec le trajet de la languette de verrouillage (20) et susceptible d'être déplacé dans la direction d'enfichage de la languette de verrouillage (13), ledit éjecteur étant précontraint par un agencement à ressort (22) en direction de la languette de verrouillage (13) ; qui lorsque la languette de verrouillage est enfichée (13) est appliqué sur sa face frontale libre (31), et qui après déverrouillage de la languette de verrouillage (13) éjecte celle-ci hors du trajet de la languette de verrouillage (20),
    caractérisée en ce que l'éjecteur (23), après éjection de la languette de verrouillage (13), sollicite le bouton de déverrouillage (18) a distance de l'axe transversal (25) et produit alors un couple de rotation qui est opposé au couple de rotation produit par l'agencement a ressort (17) du bouton de déverrouillage, et qui est supérieur en valeur absolue à celui-ci.
  3. Serrure de ceinture de sécurité selon la revendication 2, caractérisée en ce que l'éjecteur (23) comprend une butée (28) qui coopère avec une contrebutée (29) sur le bouton de déverrouillage (18).
  4. Serrure de ceinture de sécurité selon la revendication 3, caractérisée en ce que la butée (28) se trouve sur le côté de l'axe transversal (25) opposé a celui de l'agencement à ressort (17) du bouton de déverrouillage.
  5. Serrure de ceinture de sécurité selon l'une des revendications 2 à 4, caractérisée en ce que l'éjecteur (23) agit sur la face frontale libre de la languette de verrouillage (13) par l'intermédiaire d'une surface inclinée (30), de manière que la languette de verrouillage (13) est poussée de façon additionnelle à cette extrémité contre la délimitation (27) du trajet de la languette de verrouillage (20).
EP93111395A 1992-07-31 1993-07-15 Boucle de sécurité pour ceintures de sécurité de véhicules Expired - Lifetime EP0581134B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225404 1992-07-31
DE4225404A DE4225404A1 (de) 1992-07-31 1992-07-31 Sicherheitsgurtschloß einer Sicherheitsgurtanordnung bei Kraftfahrzeugen

Publications (3)

Publication Number Publication Date
EP0581134A2 EP0581134A2 (fr) 1994-02-02
EP0581134A3 EP0581134A3 (fr) 1994-02-23
EP0581134B1 true EP0581134B1 (fr) 1997-03-12

Family

ID=6464608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111395A Expired - Lifetime EP0581134B1 (fr) 1992-07-31 1993-07-15 Boucle de sécurité pour ceintures de sécurité de véhicules

Country Status (3)

Country Link
EP (1) EP0581134B1 (fr)
AT (1) ATE149805T1 (fr)
DE (2) DE4225404A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107097747A (zh) * 2017-05-27 2017-08-29 重庆光大产业有限公司 一种安全带及其锁扣装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE435893B (sv) * 1978-08-15 1984-10-29 Autoliv Ab Spenne for fordonssekerhetssele
FR2482429A2 (fr) * 1980-05-14 1981-11-20 Peugeot Aciers Et Outillage Boucle pour sangle de securite
DE3337473A1 (de) * 1983-10-14 1985-05-02 TRW Repa GmbH, 7071 Alfdorf Gurtschloss fuer einen sicherheitsgurt
JPH0636729Y2 (ja) * 1988-09-21 1994-09-28 日本精工株式会社 シートベルト用バックル

Also Published As

Publication number Publication date
EP0581134A3 (fr) 1994-02-23
EP0581134A2 (fr) 1994-02-02
DE4225404A1 (de) 1994-02-03
DE59305708D1 (de) 1997-04-17
ATE149805T1 (de) 1997-03-15

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