EP0231336A1 - Mecanisme de serrure. - Google Patents

Mecanisme de serrure.

Info

Publication number
EP0231336A1
EP0231336A1 EP86904971A EP86904971A EP0231336A1 EP 0231336 A1 EP0231336 A1 EP 0231336A1 EP 86904971 A EP86904971 A EP 86904971A EP 86904971 A EP86904971 A EP 86904971A EP 0231336 A1 EP0231336 A1 EP 0231336A1
Authority
EP
European Patent Office
Prior art keywords
elements
lock mechanism
latch
lock
latch elements
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
EP86904971A
Other languages
German (de)
English (en)
Other versions
EP0231336B1 (fr
Inventor
Per-Olof Weman
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.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
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 Autoliv Development AB filed Critical Autoliv Development AB
Publication of EP0231336A1 publication Critical patent/EP0231336A1/fr
Application granted granted Critical
Publication of EP0231336B1 publication Critical patent/EP0231336B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 a lock mechanism having two separate latch elements which are displaceable between a disengaged position and an engaged position on either side of a partition line between the elements.
  • lock mechanisms are used in order to protect human life or to secure or retain persons or objects in such a manner that they can be released rapidly and easily when required.
  • Such lock mechanisms are used e.g. in automotive safety belts and other safety belts but the use of these lock mechanisms is of interest also in many other fields. Even if the invention has been developed particularly in connection with automotive safety belts it is not limited to this narrow field; the invention can be applied more generally in different technical fields where the same problem is encountered as in connection with automotive safety belts.
  • the lock mechanism of an automotive safety belt in the first place must provide a locking of the belt which is so safe that the lock can fulfil the vital function thereof in a reliable manner but at the same time it is required that the lock mechanism can be operated and disengaged without major effort, e.g. in order to release rapidly the user of the automotive safety belt after an accident.
  • this means that the lock mechanism is operated at a push button or the like, the latching force provided in the lock mechanism by some springs being overco ⁇ e.
  • the lock mechanism for the purpose mentioned has obtained the character ⁇ istics according to claim 1.
  • FIG. 1 is a plan view of the lock mechanism accord ⁇ ing to the invention
  • FIG. 2 is a longitudinal cross-sectional view of the lock mechanism
  • FIGS, 3 to 5 disclose di agrammatically different positions of the latch elements
  • FIG. 6 is a perspective view of a primary latch member forming part of the lock
  • FIG. 7 is a plan view of the primary latch member according to FIG. 6 in a modified embodiment thereof.
  • FIG. 8 is a plan view of a lock tongue and latch elements engaged therewith.
  • FIG. 9 is a perspective view of one of the latch elements in FIG. 8.
  • FIGS. 1 and 2 there is shown a lock housing 1 having a primary latch member 2 for engagement with a lock tongue 8.
  • two secondary latch elements 32, 33 which are displaceably guided in a slot 3 in the lock housing and are displaceable towards and away from each other. They are spring-biased to the position shown in FIGS. 1 and 2 wherein they are positioned over an engagement surface 2' of the latch member 2. In this position the latch elements prevent the latch member 2 from disengaging the lock tongue.
  • a push button 5 can be actuated against the bias of a spring 6 to displace the latch elements to the disengaged position, FIG. 3, in which the latch member 2 can be pivoted upwards to disengage the lock tongue.
  • An ejector 7 which is biased by means of a compression spring 9, is provided to eject the lock tongue when disengaged.
  • the lock mechanism is also in the latching position or engaged position, but the two elements 32 and 33 are displaced to the left, and then the element 32 maintains the primary latch member 2 in the engaged position.
  • the elements are dis ⁇ placed to the right, and then the element 33 maintains the primary latch member in the engaged position.
  • the lock mechanism can be brought to the disengaged position only if the latch elements simultaneously are moved apart completely. At rectilinear accelerations or retardations the lock mechanism will maintain the engaged position, because if one element moves away from the primary latch member 2, the other element will still be in the latching position. If it is assumed that the primary latch member 2 is latched by means of both elements 32 and 33, FIG. 2, and that the lock suddenly starts to rotate about an axis which extends perpen ⁇ dicularly to the elements and therebetween, or about an axis which extends between the elements and is substan ⁇ tially parallel thereto, it may occur that the elements are moved apart by the centrifugal acceleration.
  • the elements 32 and 33 according to the invention are shaped such that the centre of gravity of the element 32 is located in the area of the element 33, i.e. at that side of the partition line between the elements, which is opposite to the element 32, and the centre of gravity of the element 33 is located in an analogous manner in the area of the element 32.
  • the element 32 is constructed as part of a frame 320 while the element 33 is constructed as part of a T-piece 330.
  • the centres of gravity of the frame and the T-piece thus are reversed in relation to the partition line between the elements 32 and 33.
  • the primary latch member 2 has a recess 20, FIG. 6, for the stem of the T-piece in order that said stem cannot lock the primary latch member.
  • this member has two projecting shoulders 21, the two latch elements 32 and 33 co-operating with said shoulders.
  • the latch element 2 has a lock detent 22 to engage the lock tongue, and two arms 23 for the pivotal mounting in the lock housing 1.
  • the push button 5 being provided with arms 51 one at each side of the lock, but only one arm is shown in FIG. 1, these arms providing the necessary movement of the element 32, i.e. the frame 320, over rockers 11.
  • a compression spring 12 is provided which orientates the two elements in relation to each other, but which does not determine the level at which the lock mechanism opens by itself at an acceleration, if any, as in case of prior art lock mechanisms.
  • the rockers 11 comprise auton ⁇ omous bodies sensitive to rotation, but can actuate only one of the elements 32 and 33, and thus the security of the lock mechanism is not jeopardized as a consequence thereof.
  • the risk of the latch member 2 being unintentionally disengaged is exceed ⁇ ingly small, because the overlapping distance is large in relation to the gap in the disengaged position of the other element and corresponds to the thickness of the shoulders 21.
  • the overlapping distance can be increased by angling the shoulders in the manner shown in FIG. 7 wherein the overlapping distance is indicated at 1.
  • the two latch elements 32 and 33 are provided as primary latch members to engage directly the lock tongue 8, the latch elements forming hooks 32' and 33', respectively, to engage recesses 8' at the edges of the lock tongue.
  • the latch elements are dis ⁇ placed to engage and disengage the recesses transversely of the lock tongue as indicated by a double-arrow in FIG. 8.
  • the partition line between the hooks of the latch elements is indicated by a dot-and-dash line, and as will be seen, each latch element has the hook and the centre of gravity, indicated at X, at opposite sides of the partition line.

Landscapes

  • Lock And Its Accessories (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Buckles (AREA)

Abstract

Mécanisme de serrure muni de deux éléments de loquet séparés (32, 33) pouvant être déplacés entre une position dégagée et une position engagée de part et d'autre d'une ligne de séparation entre les éléments. Le centre de gravité de chaque élément de loquet se trouve du côté de la ligne de séparation des éléments de loquet qui est opposé à celui de l'élément concerné.
EP86904971A 1985-08-02 1986-08-01 Mecanisme de serrure Expired - Lifetime EP0231336B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8503683 1985-08-02
SE8503683A SE448595B (sv) 1985-08-02 1985-08-02 Lasmekanism for bilbelte med tva separata sperrelement

Publications (2)

Publication Number Publication Date
EP0231336A1 true EP0231336A1 (fr) 1987-08-12
EP0231336B1 EP0231336B1 (fr) 1991-01-16

Family

ID=20361015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904971A Expired - Lifetime EP0231336B1 (fr) 1985-08-02 1986-08-01 Mecanisme de serrure

Country Status (4)

Country Link
EP (1) EP0231336B1 (fr)
DE (1) DE3676993D1 (fr)
SE (1) SE448595B (fr)
WO (1) WO1987000736A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195140B (en) * 1986-09-16 1990-09-26 Autoliv Dev Improvements in or relating to a seat belt buckle
GB2202264B (en) * 1987-02-10 1991-04-24 Autoliv Dev Improvements in or relating to a safety belt buckle
DE3835508A1 (de) * 1988-10-19 1990-05-03 Autoliv Kolb Gmbh & Co Schloss fuer ein kraftfahrzeug-sicherheitsgurtsystem
GB8904205D0 (en) * 1989-02-23 1989-04-05 Bsrd Ltd Seat belt buckle
US5163207A (en) * 1989-03-15 1992-11-17 Autoflug Gmbh & Co. Fahrzeugtechnik Shock proof buckle for safety belts
DE4009272A1 (de) * 1990-03-22 1991-09-26 Trw Repa Gmbh Gurtschloss fuer ein sicherheitsgurtsystem, das mit einer rueckstrammeinrichtung versehen ist
BR9305664A (pt) * 1992-10-09 1996-11-26 Autoliv Dev Fivela de cinto de segurança
US7370393B2 (en) 2004-09-20 2008-05-13 Delphi Technologies, Inc. Seat belt buckle for use with pretensioner
WO2006127375A1 (fr) 2005-05-26 2006-11-30 Delphi Technologies, Inc. Boucle de ceinture de securite utilisee avec un pretensionneur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8700736A1 *

Also Published As

Publication number Publication date
EP0231336B1 (fr) 1991-01-16
SE448595B (sv) 1987-03-09
SE8503683L (fr) 1987-02-03
WO1987000736A1 (fr) 1987-02-12
SE8503683D0 (sv) 1985-08-02
DE3676993D1 (de) 1991-02-21

Similar Documents

Publication Publication Date Title
CA3145717C (fr) Boucle
US3605210A (en) Side locking seat belt buckle
US5832573A (en) Quick release buckle assembly
US2876516A (en) Buckle
US9415247B2 (en) Quick release connector for fall protection
US5325966A (en) Tool box
EP0384703A1 (fr) Boucle de ceinture de sécurité
JPH0233241B2 (fr)
EP0231336A1 (fr) Mecanisme de serrure.
US4757579A (en) Buckle for child-restraining devices
US6691384B2 (en) Buckle for safety belts
US4937923A (en) Positive-lock quick-release buckle
US8950780B2 (en) Seat belt buckle and seat belt system for a vehicle
EP1018307B1 (fr) Boucle
US4972559A (en) Safety belt buckle
JP4609922B2 (ja) バックルおよびこれを備えたシートベルト装置
US3200463A (en) Quick-release connector
US6463639B1 (en) Buckle
EP0758856B1 (fr) Mecanisme a boucle
EP0231335B1 (fr) Mecanisme de serrure avec deux elements de verrouillage
EP2033533B1 (fr) Boucle composée
GB2073809A (en) Improvements in or relating to restraining belts
US3133329A (en) Connector device for suspending straps
US3713191A (en) Belt clasp
US3555633A (en) Safety belt buckle

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19870806

17Q First examination report despatched

Effective date: 19881209

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19910116

REF Corresponds to:

Ref document number: 3676993

Country of ref document: DE

Date of ref document: 19910221

ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010801

Year of fee payment: 16

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

Ref country code: FR

Payment date: 20010810

Year of fee payment: 16

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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 NON-PAYMENT OF DUE FEES

Effective date: 20020801

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

Ref country code: DE

Payment date: 20020807

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020801

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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 NON-PAYMENT OF DUE FEES

Effective date: 20040302