EP0452464B1 - Boucle pour ceinture de siege - Google Patents

Boucle pour ceinture de siege Download PDF

Info

Publication number
EP0452464B1
EP0452464B1 EP19900916769 EP90916769A EP0452464B1 EP 0452464 B1 EP0452464 B1 EP 0452464B1 EP 19900916769 EP19900916769 EP 19900916769 EP 90916769 A EP90916769 A EP 90916769A EP 0452464 B1 EP0452464 B1 EP 0452464B1
Authority
EP
European Patent Office
Prior art keywords
locking member
slider
latch plate
bar
seat belt
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
EP19900916769
Other languages
German (de)
English (en)
Other versions
EP0452464A1 (fr
Inventor
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.)
European Components Co Ltd
Original Assignee
European Components Co Ltd
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 European Components Co Ltd filed Critical European Components Co Ltd
Publication of EP0452464A1 publication Critical patent/EP0452464A1/fr
Application granted granted Critical
Publication of EP0452464B1 publication Critical patent/EP0452464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • the present invention relates to seat belt buckles for seat belts in motor vehicles.
  • One form of such seat belt buckle involves a latch plate having an aperture therein, engageable on one part of the seat belt, and a buckle having a rigid frame including a base having an opening therein and upstanding side walls adapted to guide the latch plate longitudinally of the frame.
  • the latch plate can be inserted against the action of a spring loaded ejector and when in the fully inserted position a locking member is pivoted to a lower latching position in which a locking element engages in the aperture in the latch plate.
  • a push button is used to release the locking member which pivots back to an unlatched position.
  • GB-2010955 discloses a seat belt buckle adapted to releasably engage a latch plate having an aperture therein, said buckle comprising a rigid frame including a base having an opening therein, upstanding side walls adapted to guide the latch plate longitudinally of the frame, a bar extending transversely of the frame between said side walls, said bar being spaced above the base, a locking member pivotally mounted on the frame and pivotal between a lower latched position and an upper unlatched position, said locking member carrying a downwardly projecting locking element engageable in said aperture in the latch plate to retain the latch plate in place and passing into said opening, a pair of wings extending laterally from said locking member and engaging in said side walls to pivotally and resiliently mount the locking member for movement between its upper and lower positions.
  • seat belt buckles should have an easy and effective latching of the latch plate and should easily release the latch plate by operation of the push button. It is most important to retain the latch plate in a latch position in the buckle even when the latch plate and buckle are subject to a very heavy impact load.
  • the present invention is characterised in that a slider is slidable longitudinally of the locking member between a first position in which it is located under said bar, to retain the locking member in the lower latched position and a second position in which it allows said locking member to pivot to its upper unlatched position, in that a slider spring urges the slider towards its first position; in that a push button is provided to push the slider to its second position, in that said slider is resiliently engaged by said slider spring against the rear of said bar to retain the locking member in its upper unlatched position, in that said wings are capable of elastic flexing, upon axial loading of said locking member by said latch plate, and in that at least one stop member extends laterally from said member, said at least one stop member engaging abutments on said rigid frame to prevent flexing of said wings beyond their elastic limit.
  • the provision of the bar extending over the slider assists in the withstanding of heavy loads and prevents inadvertent release of the buckle. More importantly, however, the provision of the stop member or members prevents excessive flexing of the wings, which acts as the pivot for the locking member, so that the wings never are distorted beyond their elastic limit.
  • each stop member may take a number of forms but advantageously each stop member extends laterally from the locking member forwardly from the wings and may comprise a pair of arms engaging, at least in the lower latching position of the locking member, against abutments in the side walls.
  • these abutments are in the form of open-topped notches in the upper edges of the side walls into which the arms move in the lower latching position.
  • the locking element in the lower latching position of the locking member has its forward edge spaced from the forward edge of said opening by a given distance under normal conditions.
  • said at least one stop member has its forward edge spaced from its associated abutment by a spacing less than said given distance, whereby the load bearing capacity of the or each stop member and its associated abutment are enhanced by engagement of the forward edge of the locking element with the rearward edge of the opening.
  • the rearward edge of said bar and the forward edge of said slider are cooperatingly chamfered to retain the locking member in its upper unlatched position when said forward and rearward edges are inter-engaged by said slider spring.
  • the buckle includes a rigid frame 10 having a base plate 12 having two upstanding side walls 14 extending from each side edge thereof.
  • a bar 16 extends between the side walls 14 and is spaced from and parallel to the base plate 12.
  • An opening 20 is formed in the base plate 12 and is provided with a front edge 22 ( Figure 2).
  • a locking member 24 Pivotally mounted between the side walls 14 is a locking member 24, which includes a forwardly extending body 26 and downwardly extending legs 28.
  • the body is provided with two laterally extending wings 30 engaging in rear notches 32 in the side walls 14. Extending parallel to these wings 30 are arms 34 which can, in the lower latched position as illustrated in Figure 1, engage in forward notches 36 in the side wall.
  • a locking element 38 At the forward end of the body 26 of the locking member is a locking element 38 which, in the latched position, passes through an aperture 40 in a latch plate 42 to retain the latch plate in place.
  • longitudinally slidable on the locking member 24 is a slider 44 having a chamfered leading edge 46. The slider is urged towards the front (the left in the Figures) by a slider spring 48 engaged over a projection 50 on the body 26 of the locking member 24.
  • a push button 52 Longitudinally slidable on the side walls 14 is a push button 52 which has rearward projections 54 engaging forward projections 56 on an ejector 58 longitudinally slidable in the opening 20 in the base plate 12, and urged to the forward position by an ejector spring 60.
  • a latch plate 42 In use, starting from the position illustrated in Figure 2, a latch plate 42 is inserted in the guide channel formed by the base plate 12 and the side walls 14, it causes the ejector 58 to move rearwardly, that is to the right, against the action of its spring 60. This movement continues until the ejector is moved so far rearwards that it engages on the bottom of the leg 28 of the locking member 24. The resulting couple rotates the locking member/slider system causing the slider 44 to move down and return under the bar 16 to the position illustrated in Figure 1. When the plate 42 is unloaded, the aperture 40 therein abuts the locking element 38 which retains the latch plate 42 in place so that the buckle cannot unlatch.
  • both the wings and the main body of the locking member recover elastically to restore the clearances 64, 66 ( Figure 3) between the locking member 34 and the frame sufficient to allow the front face 70 of the locking element 38 to sweep past the frame edge 22, when the locking member is released to the unlatched position and in particular with the release preformed whilst specific test loads are being applied longitudinally through the latch plate.

Abstract

On décrit une boucle de ceinture de siège adaptée à s'engager de manière amovible dans une plaque d'attache (42) dotée d'une ouverture (40), ladite boucle étant munie d'un cadre rigide (10) et d'une base (12) à ouverture (40), de parois verticales (14) destinées à guider ladite plaque le long du cadre, d'une barrette (16) s'étendant transversalement par rapport au cadre entre lesdites parois, la barrette étant disposée au-dessus de la base, d'un élément de blocage (24) monté de manière pivotante sur le cadre, et pouvant pivoter entre une position inférieure enclenchée et une position supérieure non enclenchée, ledit élément de blocage portant une pièce de blocage (38) orientée vers le bas pouvant s'introduire dans ladite ouverture (40) de la plaque d'attache (42) pour la maintenir en place, et pouvant pénétrer dans ladite ouverture. La boucle comporte également un élément coulissant (44) pouvant glisser le long de l'élément de blocage entre une première position dans laquelle il est situé au-dessous de ladite barrette (16) pour retenir l'élément de blocage dans la position enclenchée inférieure et une deuxième position dans laquelle il est enclenché de manière élastique contre l'arrière de la barrette pour maintenir l'élément de blocage dans sa position supérieure non enclenchée, un bouton poussoir (52) pour pousser l'élément coulissant depuis sa première position vers sa deuxième position, un ressort (48) pour amener l'élément coulissant vers sa première position, une paire d'éléments latéraux (30) s'étendant latéralement en partant dudit élément de blocage et s'engageant dans les parois de manière à maintenir l'élément de blocage de manière pivotante et élastique pour permettre un mouvement entre ses positions supérieure et inférieure, et au moins une butée prenant appui sur des parties fixes du cadre rigide de manière à prévenir toute flexion desdites parties latérales au-dessus de leur limite élastique.

Claims (7)

  1. Boucle pour ceinture de siège adaptée pour recevoir de manière amovible une plaque de verrouillage (42) présentant une ouverture (40), ladite boucle comprenant un corps rigide (10) incluant une base (12) dotée d'un dégagement (20), des parois latérales verticales (14) adaptées pour guider la plaque de verrouillage le long du corps, une barre (16) disposée perpendiculairement au corps entre lesdites parois latérales, ladite barre étant montée à distance au-dessus de la base, un membre de verrouillage (24) monté sur le corps de manière à pouvoir pivoter entre une première position inférieure verrouillée et une seconde position supérieure déverrouillée, ledit membre de verrouillage (24) portant un élément de verrouillage (38) dépassant vers le bas et susceptible de s'engager dans ladite ouverture (40) de la plaque de verrouillage (42) afin de maintenir en place la plaque de verrouillage et passant dans ledit dégagement (20), une paire de bras (30) s'étendant latéralement depuis ledit membre de verrouillage et s'engageant de façon élastique dans lesdites parois latérales afin que le membre de verrouillage puisse pivoter entre ses positions supérieure et inférieure, caractérisée en ce qu'une coulisse (44) peut se déplacer le long du membre de verrouillage entre une première position dans laquelle elle est située sous ladite barre (16), pour retenir le membre de verrouillage dans la position inférieure verrouillée, et une seconde position dans laquelle elle permet audit membre de verrouillage de pivoter jusqu'à sa position supérieure déverrouillée, en ce qu'un ressort de coulisse (48) presse la coulisse en direction de sa première position, en ce qu'un bouton-poussoir (52) est prévu pour pousser la coulisse vers sa seconde position, en ce que ladite coulisse est pressée de façon élastique par ledit ressort de coulisse contre l'arrière de ladite barre pour retenir le membre de verrouillage dans sa position supérieure déverrouillée, en ce que lesdits bras (30) peuvent plier de manière élastique sous la charge axiale exercée sur ledit membre de verrouillage par ladite plaque de verrouillage (42), et en ce qu'au moins un élément d'arrêt (34) s'étend latéralement depuis ledit membre, ledit ou lesdits élément(s) d'arrêt s'engageant dans des butées (36) ménagées dans le corps rigide afin d'éviter la flexion desdits bras au-delà de leur limite d'élasticité.
  2. Boucle de ceinture de siège selon la revendication 1, caractérisée en ce qu'au moins un élément d'arrêt (34) s'étend latéralement depuis ledit membre de verrouillage à l'avant desdits bras (30).
  3. Boucle de ceinture de siège selon la revendication 2, caractérisée en ce qu'au moins un élément d'arrêt (34) comprend une paire de doigts venant buter, au moins dans la position inférieure du membre de verrouillage, contre lesdites butées (36) qui sont prévues dans ladite paroi latérale.
  4. Boucle de ceinture de siège selon la revendication 3, caractérisée en ce que les butées (36) se présentent sous la forme d'entailles pratiquées dans les bords supérieurs desdites parois latérales.
  5. Boucle de ceinture de siège selon l'une quelconque des revendications précédentes, caractérisée en ce que, dans des conditions normales, dans la position inférieure verrouillée du membre de verrouillage, l'élément de verrouillage (38) a son bord avant espacé du bord avant dudit dégagement (20) d'une distance donnée.
  6. Boucle de ceinture de siège selon la revendication 5, caractérisée en ce qu'au moins un élément d'arrêt (34) a son bord avant espacé de sa butée associée (36) d'une distance inférieure à ladite distance donnée, la limite de charge du ou de chaque élément d'arrêt (34) et de sa ou leur butée associée (36) étant augmentée par engagement du bord avant de l'élément de verrouillage (38) avec le bord arrière de le dégagement (20).
  7. Boucle de ceinture de siège selon l'une quelconque des revendications précédentes, caractérisée en ce que le bord arrière (18) de ladite barre (16) et le bord avant (46) de ladite coulisse (44) sont chanfreinés de manière à coopérer pour retenir le membre de verrouillage dans sa position supérieure déverrouillée lorsque lesdits bords avant et arrière sont plaqués l'un contre l'autre par ledit ressort de coulisse.
EP19900916769 1989-11-06 1990-11-02 Boucle pour ceinture de siege Expired - Lifetime EP0452464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8925036A GB2238074A (en) 1989-11-06 1989-11-06 Seat belt buckle.
GB8925036 1989-11-06

Publications (2)

Publication Number Publication Date
EP0452464A1 EP0452464A1 (fr) 1991-10-23
EP0452464B1 true EP0452464B1 (fr) 1994-02-16

Family

ID=10665816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900916769 Expired - Lifetime EP0452464B1 (fr) 1989-11-06 1990-11-02 Boucle pour ceinture de siege

Country Status (6)

Country Link
EP (1) EP0452464B1 (fr)
JP (1) JPH07112443B2 (fr)
DE (1) DE69006720T2 (fr)
ES (1) ES2051523T3 (fr)
GB (1) GB2238074A (fr)
WO (1) WO1991006231A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744019B4 (de) * 1996-10-07 2009-05-07 Takata-Petri Ag Sicherheitsgurtschloß

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU1837825C (ru) * 1991-04-03 1993-08-30 Леонид Оскарович Тедер Замок дл ремн безопасности транспортного средства
GB2302705A (en) * 1995-06-28 1997-01-29 Europ Component Co Ltd Seat belt buckle
GB2313147B (en) * 1996-05-14 2000-08-23 Europ Component Co Ltd Seat belt buckle
GB2329214A (en) * 1997-09-10 1999-03-17 Europ Component Co Ltd Seat belt buckle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379995A2 (fr) * 1976-04-28 1978-09-08 Peugeot Aciers Et Outillage Boucle pour sangle de securite
US4064603A (en) * 1976-09-29 1977-12-27 Gateway Industries, Inc. Safety belt buckle
SE7812170L (sv) * 1977-12-07 1979-06-08 Klippan Nv Belteslas med lett frigorbar sperr
ATE8566T1 (de) * 1980-11-18 1984-08-15 Autoflug Gmbh Schnalle fuer einen sicherheitsgurt.
FR2509969A1 (fr) * 1981-07-27 1983-01-28 Klippan Nv Boucle de fermeture de ceinture de securite a loquet pivotant
SE451231B (sv) * 1982-12-23 1987-09-21 Autoliv Dev Lasanordning for sekerhetsselar i fordon
US4550474A (en) * 1983-11-21 1985-11-05 Gateway Industries, Inc. Safety belt buckle
GB2218457B (en) * 1988-05-11 1992-03-18 Gen Motors Corp Seat belt buckle.
GB2218458B (en) * 1988-05-11 1992-04-15 Gen Motors Corp Seat belt buckle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19744019B4 (de) * 1996-10-07 2009-05-07 Takata-Petri Ag Sicherheitsgurtschloß

Also Published As

Publication number Publication date
JPH04506922A (ja) 1992-12-03
JPH07112443B2 (ja) 1995-12-06
EP0452464A1 (fr) 1991-10-23
DE69006720D1 (de) 1994-03-24
GB8925036D0 (en) 1989-12-28
WO1991006231A1 (fr) 1991-05-16
GB2238074A (en) 1991-05-22
ES2051523T3 (es) 1994-06-16
DE69006720T2 (de) 1994-07-07

Similar Documents

Publication Publication Date Title
US4358877A (en) Buckles for vehicle seat belt system
CA1134599A (fr) Boucle de surete a loquet a degagement facile
US5369855A (en) Buckle for seat belt
US5271129A (en) Seat belt buckle
CN108601415B (zh) 恶劣环境下的带扣组件及相关系统和方法
US4575907A (en) Latch buckle for seat belt
EP0114332A2 (fr) Boucle
US4404715A (en) Safety-belt buckle of slide-unlocking type
GB2195140A (en) Improvements in or relating to a safety belt buckle
EP0452464B1 (fr) Boucle pour ceinture de siege
GB2057552A (en) Safety belt buckle
US3481009A (en) Seat belt buckle
GB2166187A (en) Seat belt latch buckle
US5870810A (en) Seat belt buckle
US5210915A (en) Seat belt buckle
EP0011275B1 (fr) Boucle pour ceinture de sécurité ou harnais
EP1022965B1 (fr) Boucle de ceinture de securite
GB2073810A (en) Improvements in or relating to a buckle
EP0750862B1 (fr) Boucle de ceinture de sécurité
GB2083542A (en) A Tongue and Buckle Fastener for a Safety Belt
EP0867131B1 (fr) Boucle de ceinture de sécurité à trois sangles pour sièges de sécurité pour enfants transportés sur des véhicules automobiles et semblables
US5791027A (en) Seat belt buckle
JPH0669402B2 (ja) シートベルトバックル
SE455673B (sv) Belteslas samt forfarande for framstellning av belteslas
EP0453605B1 (fr) Boucle pour ceinture de sécurité

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910531

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 19920805

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: EUROPEAN COMPONENT CO. LIMITED

REF Corresponds to:

Ref document number: 69006720

Country of ref document: DE

Date of ref document: 19940324

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: PROPRIA PROT. PROPRIETA' IND.

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: EUROPEAN COMPONENTS CO. LIMITED

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2051523

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20091201

Year of fee payment: 20

Ref country code: DE

Payment date: 20091029

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20091112

Year of fee payment: 20

Ref country code: FR

Payment date: 20091123

Year of fee payment: 20

Ref country code: GB

Payment date: 20091028

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20101101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101102

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20101103