EP0485656A1 - Fermeture pour ceinture de sécurité de véhicules automobiles - Google Patents

Fermeture pour ceinture de sécurité de véhicules automobiles Download PDF

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Publication number
EP0485656A1
EP0485656A1 EP90121893A EP90121893A EP0485656A1 EP 0485656 A1 EP0485656 A1 EP 0485656A1 EP 90121893 A EP90121893 A EP 90121893A EP 90121893 A EP90121893 A EP 90121893A EP 0485656 A1 EP0485656 A1 EP 0485656A1
Authority
EP
European Patent Office
Prior art keywords
lever
release button
rest position
lock
lock according
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
EP90121893A
Other languages
German (de)
English (en)
Other versions
EP0485656B1 (fr
Inventor
Artur Föhl
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.)
TRW Occupant Restraint Systems GmbH
Original Assignee
TRW Occupant Restraint Systems 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 TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Priority to ES90121893T priority Critical patent/ES2032369T3/es
Priority to DE59009070T priority patent/DE59009070D1/de
Priority to EP90121893A priority patent/EP0485656B1/fr
Priority to US07/790,375 priority patent/US5213365A/en
Priority to JP3299222A priority patent/JPH0651007B2/ja
Publication of EP0485656A1 publication Critical patent/EP0485656A1/fr
Application granted granted Critical
Publication of EP0485656B1 publication Critical patent/EP0485656B1/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
    • 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
    • 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
    • Y10T24/4567—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 slidably connected and guided, nonself-biasing, interlocking component

Definitions

  • the invention relates to a buckle for seat belt systems in vehicles which are provided with a rear tensioning device engaging the buckle, with a load-bearing housing in which an insertion path for a tongue is formed, a latch engaging with the tongue which is between a first position in which the tongue is blocked in the lock, and a second position, in which the tongue is released from the lock, is movable, and a release button, which is spring-loaded into a rest position and by its actuation in the direction of the insertion movement of the tongue, with corresponds to the back tightening direction, the bolt is moved into the second position.
  • Locks for seat belt systems are known in numerous designs.
  • a design has proven itself in which an insertion path for the tongue is formed in the load-bearing housing of the lock and one on the housing transverse to the insertion path slidably guided or pivotally mounted bolt cooperates with a latching opening of the tongue.
  • a locking member which is displaceably guided in the housing parallel to the insertion path holds the bolt in its locking position, as long as a release button which is likewise displaceably guided in the housing parallel to the insertion path is in its rest position. This release button is coupled to the locking member in order to move it into a release position when actuated, in which the bolt is released from the latching opening of the tongue.
  • the force required for back tensioning can be generated mechanically by means of a strongly dimensioned spring or pyrotechnically. If the back tension force is of sufficient magnitude, especially when using pyrotechnic back tension drives, in certain cases an automatic opening at the end of the back tension path can occur when using a lock of the type specified at the beginning.
  • the lock is provided with a pawl that becomes active at the end of the backward movement due to inertia to prevent the movement of the release button in the direction of actuation, then this pawl is a component that never becomes active during the life of the lock. Only after a tightening process, which may only occur after 10 years of use of the lock, should the pawl be moved from a rest position to its locked position due to its inertia. In its rest position, it is usually held by a spring. It cannot be ruled out that the functionality of the latch will be impaired over the long period of use of the lock. For example, it can be prevented from getting out of its rest position into its blocking position by dirt or the penetration of foreign bodies.
  • the invention provides a lock for seat belt systems in vehicles which, with each actuation of the release button, ensures a movement of a two-armed lever, which is able to block the release button during a tightening operation, from its rest position into a deflected position, by doing the release button gives this lever a forced movement.
  • This forced movement of the lever each time the release button is pressed, its freedom of movement is guaranteed even over long periods of 10 or more years.
  • the lock according to the invention for seat belt systems in vehicles is characterized in that a pivotably mounted two-armed lever is provided, which is biased into a rest position by at least one spring, that the first arm of the lever is in the rest position next to the movement path of the release button at a distance from it and the second arm protrudes into the movement path of the release button, so that the release button hits the second arm of the lever before reaching the end of its movement path and pivots it against the spring preload into an end position, the first arm of the lever into a recess in the release button dips, and that the center of gravity of the two-armed lever is selected relative to its pivot axis so that the lever is pivoted against its spring preload against its spring preload under the action of the inertial forces acting on it at the end of the backstroke stroke before the release button occurs due to it etenden inertial forces is shifted from its rest position, and that the first arm of the lever protrudes from its rest position into the movement path of the release button after its pivoting and prevents its movement in
  • the lock according to the invention is distinguished by an extremely high level of functional reliability in a back-tightening process each time the release button is actuated.
  • the arrangement of the lever relative to the release button ensures a mechanically highly stressable support of the release button, so that constructions are also possible in which, under certain circumstances, additional masses are non-positively coupled to the release button, in particular the tongue, which under unfavorable circumstances additionally can press the release button.
  • a load-bearing housing 10 of the lock is surrounded by a cover shell 12 made of plastic.
  • the housing 10 is connected by a rivet 14 to a fitting part 16, in which an anchoring cable 18 for pressing the lock to a vehicle seat or on the vehicle floor is pressed.
  • the load-bearing housing 10 is formed from a generally U-shaped metal plate.
  • An insertion path 20 for a tongue 22 of the seat belt system is formed between the two legs of the housing 10.
  • the webbing 24 is through one Slot 26 of the tongue 22 out.
  • a bolt 30 loaded by a compression spring 28 is displaceably guided transversely to the insertion path 20. In its position shown in FIG. 1, it crosses aligned openings of the housing 10 and the tongue 22. Between the inside of the cover shell 12 and the housing 10, a release button 32 is slidably guided. This release button 32 is provided with a recess for the passage of the bolt 30. The release button 32 is preloaded by a compression spring 36 into its unactuated position shown in FIG. 1.
  • a U-shaped bearing bracket 38 is fastened to the housing 10 at the same time as the fitting 16.
  • a two-armed lever 42 is pivotally mounted between the two legs of the bearing bracket 38 by means of a cylindrical hub 40.
  • the two arms 44, 46 of the two-armed lever 42 are made in one piece with the hub 40 and project from it in a V-shape.
  • the cylindrical hub 40 is provided with a coaxial bearing bore 48 for a bearing pin 50, which is fastened in the legs of the bearing bracket 38.
  • the two-armed lever 42 is preloaded into its rest position shown in FIG. 1 by two torsion springs 52, 54 which act independently of one another. In this rest position, the arm 44 comes to rest against an inwardly projecting projection 56 of the cover shell 12.
  • the release button 32 is provided at its end located inside the cover shell 12 with a shoulder 58 which has a concavely curved stop surface 60.
  • the arm 46 of the lever 42 projects into the rest position of the same (FIG. 1) into the movement path of the extension 58 of the release button 32.
  • the release button 32 is actuated, it is shifted into the interior of the cover shell 12, as shown in FIG. 2, the projection 48 abutting the arm 46 of the two-armed lever 42 and countering the spring preload due to the torsion springs 52, 54 from its rest position panned.
  • the release button 32 is provided immediately above the shoulder 58 with a wedge-shaped recess 62 into which the arm 44 of the lever 42 dips.
  • the bearing bracket 38 and the cylindrical hub 40 ensure a mechanically highly stressable mounting of the two-armed lever 42.
  • the buckle described is intended for seat belt systems which are provided with a back tensioning device, which shift the buckle in the direction indicated by an arrow in FIG. 3 towards the vehicle floor, ie downward. This direction corresponds to the actuation direction of the release button 32.
  • a back tensioning device which shift the buckle in the direction indicated by an arrow in FIG. 3 towards the vehicle floor, ie downward.
  • This direction corresponds to the actuation direction of the release button 32.
  • the downward movement of the lock is suddenly stopped.
  • an extremely high deceleration occurs at the end of the back tension stroke.
  • the release button 32 strives to continue the downward movement. However, it can only perform a downward movement when the inertial forces acting on it are greater than the force with which the spring 36 acts on the release button in its rest position.
  • the center of gravity of the two-armed lever 42 lies in the arm 46 and is designated by the letter S.
  • the lever 42 is the center of gravity so that the lever is pivoted counterclockwise under the action of the inertia forces occurring at the end of the backstroke stroke.
  • the pivoting of the lever 42 only begins when the forces generated by inertia overcome the spring preload by the torsion springs 52, 54.
  • the torsion springs 52, 54 are dimensioned such that the lever 42 is pivoted from its rest position into the deflected position shown in FIG. 3, even before the release button 32 begins its downward movement, with a relatively small delay in the lock at the end of the backward movement.
  • FIG. 6 and 7 show two design variants with regard to the spring loading of the two-armed lever 42.
  • the torsion springs 52, 54 of the arrangement shown in FIG. 4 are provided by a coil spring 70, which also acts as a torsion spring, with two in the same plane extending arms 72, 74 replaced.
  • the cylindrical part of the spring 70 is fastened to the circumference of the hub 40 of the lever 42 by means of a rivet 76, a screw or the like.
  • the cylindrical part of the spring 70 is received in the interior of an arcuate shell 78 molded onto the hub 40, over the upper ends of which the arms 72, 74 of the spring 70 extend.
  • These spring arms engage with their ends in associated cutouts 80, 82 in the legs of the bearing bracket 38. This arrangement ensures that the spring 70 is installed with the correct orientation.
  • a straight spring wire 90 is used for spring loading of the lever 42.
  • This spring wire 90 is held in the middle by two lugs 92 forming a slot and molded onto the hub 40.
  • the ends of the spring wire 90 engage in the associated cutouts 80, 82 of the bearing bracket 38.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
EP90121893A 1990-11-15 1990-11-15 Fermeture pour ceinture de sécurité de véhicules automobiles Expired - Lifetime EP0485656B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES90121893T ES2032369T3 (es) 1990-11-15 1990-11-15 Cerradura para sistemas de cinturon de seguridad en vehiculos.
DE59009070T DE59009070D1 (de) 1990-11-15 1990-11-15 Schloss für Sicherheitsgurtsysteme in Fahrzeugen.
EP90121893A EP0485656B1 (fr) 1990-11-15 1990-11-15 Fermeture pour ceinture de sécurité de véhicules automobiles
US07/790,375 US5213365A (en) 1990-11-15 1991-11-12 Inertially locking buckle for seat pretensioner
JP3299222A JPH0651007B2 (ja) 1990-11-15 1991-11-14 自動車用安全ベルト装置のための錠

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90121893A EP0485656B1 (fr) 1990-11-15 1990-11-15 Fermeture pour ceinture de sécurité de véhicules automobiles

Publications (2)

Publication Number Publication Date
EP0485656A1 true EP0485656A1 (fr) 1992-05-20
EP0485656B1 EP0485656B1 (fr) 1995-05-10

Family

ID=8204720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121893A Expired - Lifetime EP0485656B1 (fr) 1990-11-15 1990-11-15 Fermeture pour ceinture de sécurité de véhicules automobiles

Country Status (5)

Country Link
US (1) US5213365A (fr)
EP (1) EP0485656B1 (fr)
JP (1) JPH0651007B2 (fr)
DE (1) DE59009070D1 (fr)
ES (1) ES2032369T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687965A1 (fr) * 1992-02-19 1993-09-03 Takata Corp Dispositif a boucle pour ceinture de securite.
EP0723747A3 (fr) * 1995-01-26 1996-12-18 Trw Repa Gmbh Boucle pour ceinture de sécurité
EP0679348A3 (fr) * 1994-04-28 1997-01-29 Hs Tech & Design Boucle de ceinture de sécurité.
EP0820708A3 (fr) * 1996-07-26 1998-12-02 TRW Occupant Restraint Systems GmbH Boucle pour ceinture de sécurité
WO1999007243A1 (fr) * 1997-08-04 1999-02-18 Breed Automotive Technology, Inc. Boucle pour ceinture de securite
EP1025774A3 (fr) * 1999-02-04 2001-01-17 Breed Automotive Technology, Inc. Boucle de ceinture de sécurité

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215563A1 (de) * 1992-05-12 1993-11-18 Trw Repa Gmbh Schloß für Fahrzeug-Sicherheitsgurtsysteme
DE4416301A1 (de) * 1994-05-09 1995-11-16 Trw Repa Gmbh Verschluß für Sicherheitsgurte
GB9409246D0 (en) * 1994-05-10 1994-06-29 Alliedsignal Ltd Buckle mechanism
GB2296284A (en) * 1994-12-23 1996-06-26 Europ Component Co Ltd Seat belt buckle
US5496068A (en) * 1995-01-20 1996-03-05 Trw Vehicle Safety Systems Inc. Inertia sensitive buckle for seat belt pretensioner system
US5522619A (en) * 1995-02-01 1996-06-04 Alliedsignal Inc. End release seat belt buckle having an inertia-sensitive locking mechanism
FI107850B (fi) * 1995-06-30 2001-10-15 Nokia Mobile Phones Ltd Kantoväline matkaviestimen kiinnityslaitetta varten
DE29613690U1 (de) * 1996-08-07 1996-12-05 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Gurtstrafferfester Verschluß für Sicherheitsgurte
US5742987A (en) * 1996-09-11 1998-04-28 Alliedsignal Inc. Buckle for use with a pretensioner
GB2323885A (en) * 1997-04-02 1998-10-07 Alliedsignal Ltd Buckle with counterbalance mass
US5881439A (en) * 1997-08-22 1999-03-16 Trw Vehicle Safety Systems Inc. Base and housing for seat belt buckle
JP3809007B2 (ja) * 1998-03-25 2006-08-16 タカタ株式会社 バックル
JP4609922B2 (ja) * 2003-10-24 2011-01-12 タカタ株式会社 バックルおよびこれを備えたシートベルト装置
US7370393B2 (en) 2004-09-20 2008-05-13 Delphi Technologies, Inc. Seat belt buckle for use with pretensioner
US7543363B2 (en) 2005-05-26 2009-06-09 Delphi Technologies, Inc. Seat belt buckle for use with pretensioner
US7552518B2 (en) * 2006-05-17 2009-06-30 Delphi Technologies, Inc. Seat belt buckle for use with pretensioner
ITTO20060492A1 (it) * 2006-07-04 2008-01-05 Novarace S R L Dispositivo di chiusura per cinture di ritenuta, particolarmente per seggiolini di sicurezza automobilistici per bambini
WO2008022159A2 (fr) * 2006-08-15 2008-02-21 Delphi Technologies, Inc. Boucle de ceinture de sécurité destinée à être utilisée avec un pré-tendeur
JP5688256B2 (ja) * 2009-10-28 2015-03-25 芦森工業株式会社 バックル装置
US8516667B2 (en) * 2010-05-19 2013-08-27 GM Global Technology Operations LLC Seat belt buckle
US9827947B2 (en) 2016-02-10 2017-11-28 Ford Global Technologies, Llc Load limiting seat belt buckle assemblies

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021796A1 (de) * 1980-06-11 1981-12-24 Repa Feinstanzwerk Gmbh, 7071 Alfdorf Gurtschloss fuer einen sicherheitsgurt
EP0212507A2 (fr) * 1985-08-17 1987-03-04 Autoflug Gmbh & Co Fahrzeugtechnik Boucle de verrouillage pour ceinture de sécurité
DE3537465A1 (de) * 1985-10-22 1987-04-23 Autoflug Gmbh Sicherheitsgurtverschluss
EP0364970A2 (fr) * 1988-10-19 1990-04-25 Autoliv Development Ab Boucle pour un système de ceinture de sécurité destiné à un véhicule à moteur
EP0368277A1 (fr) * 1988-11-08 1990-05-16 General Engineering (Netherlands) B.V. Boucle de ceinture de sécurité
DE3842453A1 (de) * 1988-12-16 1990-06-21 Autoliv Kolb Gmbh & Co Schloss fuer ein kraftfahrzeug-sicherheitsgurtsystem

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1589059A (en) * 1978-05-12 1981-05-07 Securon Ag Buckle for safety belts and seat belts
GB2202264B (en) * 1987-02-10 1991-04-24 Autoliv Dev Improvements in or relating to a safety belt buckle
DE3833483A1 (de) * 1988-10-01 1990-04-05 Autoflug Gmbh Gurtschloss mit massenausgleich
US5054171A (en) * 1989-06-14 1991-10-08 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Buckle device
DE3929114A1 (de) * 1989-09-01 1991-03-07 Trw Repa Gmbh Gurtschloss fuer ein sicherheitsgurtsystem, das mit einer rueckstrammeinrichtung versehen ist
DE4009272A1 (de) * 1990-03-22 1991-09-26 Trw Repa Gmbh Gurtschloss fuer ein sicherheitsgurtsystem, das mit einer rueckstrammeinrichtung versehen ist

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021796A1 (de) * 1980-06-11 1981-12-24 Repa Feinstanzwerk Gmbh, 7071 Alfdorf Gurtschloss fuer einen sicherheitsgurt
EP0212507A2 (fr) * 1985-08-17 1987-03-04 Autoflug Gmbh & Co Fahrzeugtechnik Boucle de verrouillage pour ceinture de sécurité
DE3537465A1 (de) * 1985-10-22 1987-04-23 Autoflug Gmbh Sicherheitsgurtverschluss
EP0364970A2 (fr) * 1988-10-19 1990-04-25 Autoliv Development Ab Boucle pour un système de ceinture de sécurité destiné à un véhicule à moteur
EP0368277A1 (fr) * 1988-11-08 1990-05-16 General Engineering (Netherlands) B.V. Boucle de ceinture de sécurité
DE3842453A1 (de) * 1988-12-16 1990-06-21 Autoliv Kolb Gmbh & Co Schloss fuer ein kraftfahrzeug-sicherheitsgurtsystem

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687965A1 (fr) * 1992-02-19 1993-09-03 Takata Corp Dispositif a boucle pour ceinture de securite.
EP0679348A3 (fr) * 1994-04-28 1997-01-29 Hs Tech & Design Boucle de ceinture de sécurité.
EP0723747A3 (fr) * 1995-01-26 1996-12-18 Trw Repa Gmbh Boucle pour ceinture de sécurité
EP0820708A3 (fr) * 1996-07-26 1998-12-02 TRW Occupant Restraint Systems GmbH Boucle pour ceinture de sécurité
WO1999007243A1 (fr) * 1997-08-04 1999-02-18 Breed Automotive Technology, Inc. Boucle pour ceinture de securite
US6363591B1 (en) * 1997-08-04 2002-04-02 Breed Automotive Technology, Inc. Safety belt buckle
EP1025774A3 (fr) * 1999-02-04 2001-01-17 Breed Automotive Technology, Inc. Boucle de ceinture de sécurité
US6266855B1 (en) 1999-02-04 2001-07-31 Breed Automotive Technology, Inc. Seat belt buckle

Also Published As

Publication number Publication date
ES2032369T3 (es) 1995-09-16
JPH04266706A (ja) 1992-09-22
EP0485656B1 (fr) 1995-05-10
ES2032369T1 (es) 1993-02-16
JPH0651007B2 (ja) 1994-07-06
DE59009070D1 (de) 1995-06-14
US5213365A (en) 1993-05-25

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