EP0557983B1 - Sicherheitsgurtschloss mit Verriegelungssperre - Google Patents

Sicherheitsgurtschloss mit Verriegelungssperre Download PDF

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Publication number
EP0557983B1
EP0557983B1 EP93102945A EP93102945A EP0557983B1 EP 0557983 B1 EP0557983 B1 EP 0557983B1 EP 93102945 A EP93102945 A EP 93102945A EP 93102945 A EP93102945 A EP 93102945A EP 0557983 B1 EP0557983 B1 EP 0557983B1
Authority
EP
European Patent Office
Prior art keywords
locking
blocking element
locking pin
seat belt
belt buckle
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
EP93102945A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0557983A1 (de
Inventor
Dieter Klauke
Reinhard Flössel
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 EP0557983A1 publication Critical patent/EP0557983A1/de
Application granted granted Critical
Publication of EP0557983B1 publication Critical patent/EP0557983B1/de
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

  • the invention relates to a seat belt buckle for vehicles for receiving and locking a tongue in a housing and a lock button to release the lock, the lock button against a spring opens the load-bearing lock mechanism after actuation in the actuating direction after an opening stroke to release the lock tongue and wherein the tongue over a locking part pivotably mounted in the housing between an unlocking position and a locking position can be locked, which can be moved into a locking position and into a release position or into a locking position via a movement path guided in a link guide in the housing and on a movement path predetermined by the link guide and in a release position movable locking lever can be locked as a locking element, and with an ejector that the tongue in the unlocked position of the lock steeply pushes out of the housing.
  • the problem is that the belt buckle hits with a high delay (shock) against an end stop and an unintentional lock opening occurs because the lock button and the locking pin move down due to their inertia and thereby unlock the lock mechanism.
  • a seat belt buckle for vehicles and for receiving and locking a tongue in a housing and a lock button to release the lock, the lock button against a spring opening the load-bearing lock mechanism after an opening stroke to release the lock tongue and wherein the insertion tongue can be locked via a locking part pivotably mounted in the housing between an unlocking position and locking position, which can be locked via a locking pin guided in a link guide in the housing and movable into a locking position and into a release position, and with an ejector which moves the insertion tongue in the unlocking position of the locking element presses out of the housing.
  • This arrangement has the disadvantage that the locking pin, which is guided in a backdrop within the lock housing, could move from its locked position holding the locking member into the release position due to its inertia and the inertia of the lock key, so that the lock mechanism is unlocked and the lock tongue can be pulled out of the lock.
  • the seat belt buckle With such a design of the seat belt buckle it is ensured that the seat belt buckle cannot be unlocked unintentionally even when high mass forces occur, since the locking pin is held securely in its locking position, since its path of movement in the backdrop is blocked by the locking element and the locking element does not first comes into play through acceleration forces.
  • a locking pin guided in a link guide and a correspondingly guided locking lever are regarded as the locking element as having the same effect, so that the locking element is referred to below as the locking pin.
  • a locking pin receptacle is formed on a free end of the first arm. As a result, the locking pin is hooked, so to speak, in the locking element, and both lock each other and are secured against unintentional detachment from one another.
  • the locking pin receptacle is delimited by a top section edge that is approximately parallel to a first section of the movement path of the locking pin and two lateral delimitation edges that extend from the upper delimitation edge to an opening of the locking pin receptacle opening, and that the design and arrangement is made in this way that in the event of a strong delay (shock), the locking pin moves into the locking pin receptacle and the locking element is thereby blocked.
  • At least one of the boundary edges of the locking pin receptacle retraction forms an angle alpha of approximately 90 to a plane running through the pivot point of the locking element and an intended contact point of the locking pin with the boundary edge in the direction of a lower end of the boundary edge ° or less.
  • an at least claw-shaped or hook-shaped attachment part is formed on a free end of the first arm, with the purpose of increasing safety the attachment part has an inwardly curved, hemispherical, or triangular or polygonal, contact surface for the locking pin.
  • the locking element has an angled swivel arm for actuation and pivoting from a basic position, in which the locking element or the locking pin receptacle or the claw-shaped or hook-shaped attachment part is in the movement path of the locking pin, into the unlocking position by the lock key.
  • This embodiment has the advantage that the locking element is always in the movement path of the locking pin in a basic position, so that when the lock tongue is inserted and thus when the seat belt buckle is locked, it is ensured that the locking element is always in the movement path of the locking pin when the seat belt lock is locked , so that the greatest possible security against unintentional loosening under the influence of inertial forces is given due to an acceleration or deceleration of the buckle.
  • one of the side edges of the locking pin receptacle which is not provided for holding the locking pin in the event of acceleration, or that an additional additional attachment part, under the locking part, prevents locking of the lock, if the locking element should not release the path of movement of the locking pin in the intended manner when locking, so that a secure locking and locking is always ensured by the locking pin.
  • the locking element is actuated by the lock button via a connecting element between the swivel arm and the lock button.
  • first arm of the locking element to the second pivot arm has an angle beta of approximately 90 °.
  • the force application points on the first and second arm lie approximately in a common plane.
  • the locking element either has a center of gravity that falls in the pivot or has a center of gravity that is spaced and arranged so that occurring G-forces hold the locking part in its locking position.
  • the locking element is connected directly to the lock key designed as a sliding key via the coupling and has such a large mass of rotational inertia that even when the center of gravity and pivot point coincide, the lock key is retained.
  • FIGS. 1 to 7 A first embodiment of a seat belt buckle 100 is shown in FIGS. 1 to 7.
  • the lock key 12 is mounted so as to be longitudinally displaceable in the actuation direction B to open the lock mechanism 13 with the ejector 113, the cantilever 114 and the main spring 115.
  • the training is provided in the usual way so that the lock key 12 opens the load-bearing lock mechanism 13 after an opening stroke to release the tongue 14, the tongue 14 is locked via a pivotally mounted in the lock housing 11 locking member 10, which via a in a link guide 15 of the lock housing 11 and lockable on a movement path 17 in a locking position and in a release position locking pin 16 can be locked.
  • a pivot point 18 pivotally mounted locking element 19 is provided, which has two locking element arms 20, 21, which preferably have an angle beta of approximately 90 ° to one another and, in this embodiment, an angle beta of approximately 80 ° to one another.
  • the locking element 19 is rotatable about the pivot point 18 and the first arm 20 is designed to be movable into the path of movement 17 of the locking pin 16, in such a way that the locking element 19 is in the path of movement 17 of the locking pin 16 and this against movement from the Locked position blocked in the release position, as shown in Figure 1, 7 and 8.
  • a connecting element 22 is provided on the lock key 12, which acts and moves the arm 21 when the lock key 12 is moved in the actuating direction B and pivots the locking element 19 about the pivot point 18 into the release position.
  • the connecting element 22 is a so-called thrust crank mechanism 122, in which a pin 121a arranged on the free end 21a of the swivel arm 21 is movably arranged in a slot 121b of the lock key 12 and is carried along by slot 121b in the direction of movement when the lock key 12 is moved (Fig. 5), the pin 121a then simultaneously carrying out a corresponding upward or downward movement.
  • a conventional swivel joint and a telescopic arm 21 can also be provided here in order to carry out the desired transmission of the linear movement of the lock key 12 into a rotational movement of the locking element 19.
  • the lock key 12 designed as a sliding key
  • the locking element 19 is then moved over the connecting element 22 pivoted back into the basic position.
  • a plunger part 23 is provided on the lock key 12 which, when the lock key is actuated appropriately in the actuation direction B after pivoting the locking element 19 from the locking position into a position releasing the movement path 17, acts on the locking pin 16 and moves it into the release position.
  • a distance I is provided between the corresponding boundary edge 26 of the locking pin receptacle recess 24 of the locking element 19 and the locking pin in the unaccelerated state shown in FIG. 7 in order to enable a pivoting movement of the locking element 19 into the release position, as is indicated in FIG. 6, before the plunger part 23 moves the locking pin 16 when actuated.
  • a locking element 19 is provided, which either has a locking pin receptacle recess 24 (FIG. 7) or two claw-shaped or hook-shaped attachment parts 29, 30 (FIG. 8) that hold the locking pin 16 in the locked position (FIG. 5).
  • the system lock button, locking element and locking pin is coordinated so that these parts do not move in the event of an impact and therefore the seat belt buckle remains locked. Nevertheless, it is ensured that the seat belt buckle can be unlocked by the user at any time: when the lock button 12 is pressed, the locking element 19 rotates, the lock button 12 pushes the locking pin 16 into the unlocked position (unlocking position) and the lock is open (FIG. 6).
  • a approximately rectangular locking pin receiving recess 24 is formed, which is surrounded by an upper boundary edge 25, a front boundary edge 26 and a rear boundary edge 27 and is open via the opening 28 for the entry and exit of the locking pin 16.
  • the front boundary edge 26 has an angle alpha of approximately 90 ° or less and preferably to a plane E running through the pivot point 18 of the locking element 19 and an intended contact point K of the locking pin 16 with the boundary edge 26 in the direction of a lower end 26a of the boundary edge 26 about 70 ° so that a pressing force of the locking pin 16 on the boundary edge 26 leads to a rotation in the direction of the arrow Y.
  • the locking pin 16 When acceleration forces occur, the locking pin 16 is moved in the locking pin receptacle 24 in contact with the boundary edge 26 of the locking pin receptacle 24 and there is mutual support in all four directions, since up and down, ie perpendicular to the movement path 17, there is support by the link guide 15 , while in the direction of the movement path 17 there is support by the boundary edges 26, 27 of the locking pin receptacle recess 24 and the locking pin 16 is held against the decelerating force that occurs.
  • This system also offers complete security even in the event of shocks, while at the same time ensuring that problem-free unlocking can take place, as shown in FIG. 6.
  • the locking element 19 has two claw-shaped or hook-shaped Extension parts 29, 30, of which only one extension part 29 can be seen in the drawing, since the extension parts 29, 30 are at a distance from one another.
  • the hooks engage around the locking pin 16, so that this is securely held, as in the case of the locking pin receiving recess.
  • the attachment part 29, 30 has an inwardly curved, hemispherical, or triangular or polygonal contact surface 31 for the locking pin 16.
  • the basic idea in all embodiments is that by blocking both the locking pin and the lock button in the event of acceleration occurring, an inadvertent opening of the lock can be avoided.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
EP93102945A 1992-02-27 1993-02-25 Sicherheitsgurtschloss mit Verriegelungssperre Expired - Lifetime EP0557983B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9202528U 1992-02-27
DE9202528U DE9202528U1 (de) 1992-02-27 1992-02-27 Sicherheitsgurtschloß mit Verriegelungssperre

Publications (2)

Publication Number Publication Date
EP0557983A1 EP0557983A1 (de) 1993-09-01
EP0557983B1 true EP0557983B1 (de) 1996-05-08

Family

ID=6876593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102945A Expired - Lifetime EP0557983B1 (de) 1992-02-27 1993-02-25 Sicherheitsgurtschloss mit Verriegelungssperre

Country Status (3)

Country Link
EP (1) EP0557983B1 (ja)
DE (2) DE9202528U1 (ja)
ES (1) ES2087590T3 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004010099B4 (de) * 2004-02-27 2007-11-22 Autoliv Development Ab Sperrelement für ein schocksicheres Gurtschloss
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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29613690U1 (de) * 1996-08-07 1996-12-05 Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf Gurtstrafferfester Verschluß für Sicherheitsgurte
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
KR100850337B1 (ko) * 2004-02-27 2008-08-04 오토리브 디벨로프먼트 에이비 충격 흡수 벨트 버클의 차단 요소
DE102012002206A1 (de) 2012-02-07 2013-08-08 Trw Automotive Gmbh Gurtschloss mit Freigabesperre
DE102012018070A1 (de) 2012-02-07 2013-08-08 Trw Automotive Gmbh Gurtschloss mit Freigabesperre
DE102012002205A1 (de) 2012-02-07 2013-08-08 Trw Automotive Gmbh Gurtschloss mit Freigabesperre
US9901144B2 (en) 2014-10-30 2018-02-27 Autoliv Asp, Inc. Seatbelt buckling device and system
CN112056708A (zh) * 2020-08-27 2020-12-11 浙江松原汽车安全系统股份有限公司 一种锁止块和安全带锁扣

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE2835118B1 (de) * 1978-08-10 1979-08-30 Kolb Gmbh & Co Hans Verschlussschnalle fuer Sicherheitsgurte,insbesondere Kraftfahrzeug-Sicherheitsgurte
FR2509969A1 (fr) * 1981-07-27 1983-01-28 Klippan Nv Boucle de fermeture de ceinture de securite a loquet pivotant
FR2553637B1 (fr) * 1983-10-24 1987-10-23 Klippan France Sa Boucle de ceinture de securite
DE3342453C2 (de) * 1983-11-24 1987-03-19 Opti Patent-, Forschungs- Und Fabrikations-Ag, Riedern-Allmeind Reißverschlußschieber
SE456396B (sv) * 1985-08-02 1988-10-03 Autoliv Dev Lasmekanism i exv sekerhetsbelte, med ett primert och ett sekundert sperrorgan
DE3833483A1 (de) * 1988-10-01 1990-04-05 Autoflug Gmbh Gurtschloss mit massenausgleich
GB2227513B (en) * 1988-11-08 1993-02-10 Gen Engineering Improvements in or relating to a safety belt buckle
GB8904205D0 (en) * 1989-02-23 1989-04-05 Bsrd Ltd Seat belt buckle
DE4007916A1 (de) * 1989-03-15 1990-09-27 Autoflug Gmbh Schocksicherer sicherheitsgurtverschluss
DE3929114A1 (de) * 1989-09-01 1991-03-07 Trw Repa Gmbh Gurtschloss fuer ein sicherheitsgurtsystem, das mit einer rueckstrammeinrichtung versehen ist
DE4021974A1 (de) * 1990-07-10 1992-01-16 Autoflug Gmbh Sicherheitsgurtverschluss mit schocksicherung
DE9014634U1 (de) * 1990-10-24 1992-02-27 Autoliv GmbH, 2200 Elmshorn Sicherheitsgurtschloß mit Verriegelungssperre
DE9202525U1 (de) * 1992-02-27 1992-04-16 Autoliv Development AB, Vårgårda Sicherheitsgurtschloß mit Verriegelungssperre
DE9202526U1 (de) * 1992-02-27 1992-04-16 Autoliv Development AB, Vårgårda Sicherheitsgurtschloß mit Verriegelungssperre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004010099B4 (de) * 2004-02-27 2007-11-22 Autoliv Development Ab Sperrelement für ein schocksicheres Gurtschloss
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

Also Published As

Publication number Publication date
DE9202528U1 (de) 1992-04-16
EP0557983A1 (de) 1993-09-01
ES2087590T3 (es) 1996-07-16
DE59302478D1 (de) 1996-06-13

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