EP1887901B1 - Shock-absorbing safety belt buckle - Google Patents

Shock-absorbing safety belt buckle Download PDF

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Publication number
EP1887901B1
EP1887901B1 EP06724302A EP06724302A EP1887901B1 EP 1887901 B1 EP1887901 B1 EP 1887901B1 EP 06724302 A EP06724302 A EP 06724302A EP 06724302 A EP06724302 A EP 06724302A EP 1887901 B1 EP1887901 B1 EP 1887901B1
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EP
European Patent Office
Prior art keywords
inertial mass
transmission lever
sliding button
housing
safety belt
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EP06724302A
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German (de)
French (fr)
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EP1887901A1 (en
Inventor
Régis DUTEIL
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Autoliv Development AB
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Autoliv Development AB
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Publication of EP1887901A1 publication Critical patent/EP1887901A1/en
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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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a seat belt buckle for receiving and locking a Einsteckzunge with a housing and disposed therein containing a spring effect ejector insertion path for the insertion tongue, with a latch mounted in the closure and with the tongue recess in the locking case so cooperating latch that the insertion tongue on the Latch is fixed in the housing, and with a displaceably guided in the housing, acting on the latch to release the lock sliding, arranged for shock protection of the seat belt buckle in the direction of movement of the sliding relative to this movable inertial mass and mounted on a housing in the two-armed transmission lever the sliding button can be coupled.
  • a seat belt buckle with the aforementioned features is in the EP 0 212 507 B1 described.
  • an inertial mass in the direction of movement of the sliding key is linearly displaceable in the closure housing, which pivoted at a caused by the acting acceleration forces relative movement relative to the housing rotatably mounted in the housing two-armed transmission lever that engages with its free arm in the movement path of the sliding button and thus prevents a movement of the inertial mass rectified insertion and opening movement of the shift key.
  • the known seat belt buckle has the disadvantage that the separate arrangement of the linearly movable inertial mass with its associated guide and support in the housing of the seat belt buckle is space-consuming, so that the closure body is designed to be large.
  • the known solution means an increased manufacturing and assembly costs.
  • the mass forces of the inertial mass must be carefully matched to the mass force acting on the sliding button, so that in the event of activation, the pivoting of the transmission lever in the trajectory of the sliding button is timely before the slide button starts to move.
  • a seat belt fastener known in which an inertial mass is rotatably mounted and cooperates with a arranged in the closure support member.
  • an inertial mass When acting in the direction of insertion of the sliding button on the housing forces the inertial mass prevents a displacement of the support member, which thereby blocks the latch for the insertion against the movement of the slide button.
  • the invention is therefore based on the object to simplify a seat belt buckle with the generic features in its structure and to improve its reliability.
  • the solution to this problem arises, including advantageous refinements and developments of the invention from the content of the claims, which are adjusted to this description.
  • the invention provides in its basic idea that the inertial mass is held and guided on the sliding key and / or the housing and the sliding key has a projection spaced from its guide for the inertial mass and opposite the housing-fixed bearing axis of the transmission lever approach, wherein the transmission lever with his engages both arms directly on the inertial mass and on the approach of the shift key.
  • the invention has the advantage that due to the guidance of the inertial mass on the slide button itself, the space required for the accommodation of the inertial mass in the seat belt buckle is reduced.
  • a linear guide enabling the relative movement of the sliding key to the inertial mass is formed on the sliding key. This also gives the possibility of the inertial mass on the slide button vorzumontieren, so that the final assembly of the seat belt buckle is facilitated accordingly.
  • connection between the inertial mass and the transmission lever and between the transmission lever and the approach of the sliding button is in each case designed as a pin-slot connection. Since change due to the pivoting of the transmission lever and the linear movement of the sliding key and inertial mass, the effective lever arms, a corresponding margin must be specified in the region of the connection of the components to each other.
  • the movement conditions are advantageous to adjust, as far as according to an embodiment of the invention, that the connections between inertial mass and transmission lever on the one hand and between the transmission lever and the approach of the sliding key on the other hand on different sides of a running through the bearing axis of the transmission lever, aligned perpendicular to the plane of movement of the sliding button levels lie.
  • the transmission lever is arranged inclined in its initial position with unactuated slide against the direction of movement of the slide button, that the connection between the approach of the slide button and the transmission lever of the insertion side for the insertion tongue is closer than the connection between transmission lever and inertial mass ,
  • FIGURE shows the essential components for the understanding of the invention sliding button - inertial mass - transmission lever - lock housing a seat belt buckle in a schematic representation.
  • a sliding key 11 is displaceably guided on a housing 10 of a seat belt buckle, not shown, which is shown in the drawing in its initial position.
  • the slide button in the direction of arrow 20 in the housing 10 can be inserted.
  • a linear guide 13 is formed, along which an inertial mass 12 is slidably mounted, which is supported via the linear guide 13 at the same time on the sliding button. Since, as will be described, the inertial mass 12 must be able to move relative to the housing 10, the inertial mass 12 is movable in a slot 14 formed in the housing 10 and guided therein, so that at the same time about the leadership of the inertial mass 12 at the Sliding button 11 is a fixation of the slide button 11 relative to the housing 10.
  • the inertial mass 12 can also be displaceably mounted on the housing 10, which may also include a cover (not shown). Important for the holder and guide the inertial mass is only that no rotational acceleration is transmitted to the shift key 11.
  • a two-armed transmission lever 16 is rotatably mounted about a housing-fixed bearing axis 17 pivotally, one arm 18 is connected to the inertial mass 12.
  • the opposite arm 19 of the transmission lever 16 is connected to a correspondingly arranged on the sliding button 11 approach 15.
  • the interpretation of the transmission lever 16 and its bearing shaft 17 on the housing 10 is made with respect to the inertial mass 12 and the neck 15 of the shift key 11 such that symmetrical storage and connection conditions result that lead to the interaction of inertial mass 12 and approach 15th the shift key 11 each result in the same lever arms.
  • the projection 15 of the sliding key 11 presses on the associated arm 19 of the transmission lever 16 and causes it to pivot counterclockwise, then that on the arm 18 of the transmission lever 16, the inertial mass 12 along the slide button 11 formed on the linear guide 13 against the direction of movement of the slide button 11 in the direction of the arrow 20 moves.
  • the linear guide 13 on the sliding button 11 must have such a longitudinal extent that the required for the Entriegelungshub the shift key 11 relative movement of the shift key 11 and inertial mass 12 is mutually possible.
  • the inertial mass 10 exerts at least one inertia force acting on the transmission lever 16 or pivots the transmission lever 16 in a clockwise direction, thereby preventing the sliding key 11 from being pushed into the housing 10 during its insertion and opening movement, which in turn causes pivoting the transmission lever 16 counterclockwise would assume. This provides shock resistance of the safety belt fastener.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
  • Emergency Lowering Means (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A seatbelt buckle for receiving and locking an insert tongue, said seatbelt buckle comprising a housing, a bolt which locks the insert tongue, and a slide button which acts upon the bolt, wherein an inertial mass is provided for shockproofing of the seatbelt buckle. The inertial mass is mounted and guided on a guide disposed on the slide button and/or the housing. The slide button including a catch which is located apart from guide and opposite the bearing axis of the coupling lever. The bearing axis being fixed to the housing, wherein two arms of the coupling lever directly engage the inertial mass and the catch of the slide button.

Description

Die Erfindung betrifft einen Sicherheitsgurtverschluss zur Aufnahme und Verriegelung einer Einsteckzunge mit einem Gehäuse und einem darin angeordneten, einen unter Federwirkung stehenden Auswerfer enthaltenden Einschubweg für die Einsteckzunge, mit einem im Verschluss gelagerten und mit der Zungenausnehmung im Verriegelungsfall derart zusammenwirkenden Riegel, dass die Einsteckzunge über den Riegel im Gehäuse festgelegt ist, und mit einer im Gehäuse verschieblich geführten, auf den Riegel zur Aufhebung der Verriegelung einwirkenden Schiebetaste, wobei zur Schocksicherung des Sicherheitsgurtverschlusses eine in der Bewegungsrichtung der Schiebetaste relativ zu dieser bewegliche Trägheitsmasse angeordnet und über einen im Gehäuse gelagerten zweiarmigen Übertragungshebel an die Schiebetaste ankoppelbar ist.The invention relates to a seat belt buckle for receiving and locking a Einsteckzunge with a housing and disposed therein containing a spring effect ejector insertion path for the insertion tongue, with a latch mounted in the closure and with the tongue recess in the locking case so cooperating latch that the insertion tongue on the Latch is fixed in the housing, and with a displaceably guided in the housing, acting on the latch to release the lock sliding, arranged for shock protection of the seat belt buckle in the direction of movement of the sliding relative to this movable inertial mass and mounted on a housing in the two-armed transmission lever the sliding button can be coupled.

Ein Sicherheitsgurtverschluss mit den vorgenannten Merkmalen ist in der EP 0 212 507 B1 beschrieben. Bei derartigen Sicherheitsgurtverschlüssen geht es darum, diese schocksicher auszulegen, wenn ein Sicherheitsgurtverschluss beispielsweise im Rahmen eines Straffvorganges beschleunigt und am Ende des Straffweges schockartig abgebremst wird, so dass aufgrund der in der Bewegungsrichtung der Schiebetaste auftretenden Beschleunigungskräfte die Gefahr besteht, dass sich die Schiebetaste aufgrund der ihr eigenen Masseträgheit, in das abgebremste Verschlussgehäuse einschiebt und dadurch den Verschluss öffnet. Gemäß einem in der EP 0 212 507 B1 beschriebenen Ausführungsbeispiel ist in dem Verschlussgehäuse eine Trägheitsmasse in Bewegungsrichtung der Schiebetaste linear verschieblich angeordnet, die bei einer durch die einwirkenden Beschleunigungskräfte hervorgerufenen Relativbewegung bezüglich des Gehäuses einen im Gehäuse drehbar gelagerten zweiarmigen Übertragungshebel derart verschwenkt, dass dieser mit seinem freien Arm in die Bewegungsbahn der Schiebetaste eingreift und so eine mit der Bewegung der Trägheitsmasse gleichgerichtete Einschub- und Öffnungsbewegung der Schiebetaste verhindert.A seat belt buckle with the aforementioned features is in the EP 0 212 507 B1 described. In such safety buckles, it is important to design these shock-resistant when a seat belt fastener is accelerated, for example as part of a tightening process and at the end of Straffweges shock-like slowed down, so that due to the acceleration forces occurring in the direction of movement of the sliding button there is a risk that the sliding button due to their own inertia, pushes into the braked lock housing and thereby opens the shutter. According to one in the EP 0 212 507 B1 described embodiment, an inertial mass in the direction of movement of the sliding key is linearly displaceable in the closure housing, which pivoted at a caused by the acting acceleration forces relative movement relative to the housing rotatably mounted in the housing two-armed transmission lever that engages with its free arm in the movement path of the sliding button and thus prevents a movement of the inertial mass rectified insertion and opening movement of the shift key.

Mit dem bekannten Sicherheitsgurtverschluss ist der Nachteil verbunden, dass die gesonderte Anordnung der linear beweglichen Trägheitsmasse mit der ihr zugeordneten Führung und Abstützung im Gehäuse des Sicherheitsgurtverschlusses platzaufwendig ist, so dass der Verschlusskörper entsprechend groß auszulegen ist. Außerdem bedeutet die bekannte Lösung einen vermehrten Herstellungs- und Montageaufwand. Schließlich müssen die Massekräfte der Trägheitsmasse genauestens auf die auf die Schiebetaste einwirkende Massenkraft abgestimmt sein, damit im Auslösefall das Einschwenken des Übertragungshebels in die Bewegungsbahn der Schiebetaste rechtzeitig erfolgt, bevor sich die Schiebetaste in Bewegung setzt.With the known seat belt buckle has the disadvantage that the separate arrangement of the linearly movable inertial mass with its associated guide and support in the housing of the seat belt buckle is space-consuming, so that the closure body is designed to be large. In addition, the known solution means an increased manufacturing and assembly costs. Finally, the mass forces of the inertial mass must be carefully matched to the mass force acting on the sliding button, so that in the event of activation, the pivoting of the transmission lever in the trajectory of the sliding button is timely before the slide button starts to move.

Ferner ist aus der GB-A- 2 314 879 ein Sicherheitsgurtverschluss bekannt, bei welchem eine Trägheitsmasse drehbeweglich gelagert ist und mit einem im Verschluss angeordneten Trägerteil zusammenwirkt. Bei in Einschubrichtung der Schiebetaste auf das Gehäuse einwirkenden Kräften verhindert die Trägheitsmasse eine Verschiebung des Trägerteils, welches dadurch den Riegel für die Einsteckzunge entgegen der Bewegung der Schiebetaste blockiert.Furthermore, from the GB-A-2 314 879 a seat belt fastener known in which an inertial mass is rotatably mounted and cooperates with a arranged in the closure support member. When acting in the direction of insertion of the sliding button on the housing forces the inertial mass prevents a displacement of the support member, which thereby blocks the latch for the insertion against the movement of the slide button.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Sicherheitsgurtverschluss mit den gattungsgemäßen Merkmalen in seinem Aufbau zu vereinfachen und dessen Funktionssicherheit zu verbessern. Die Lösung dieser Aufgabe ergibt sich einschließlich vorteilhafter Ausgestaltungen und Weiterbildungen der Erfindung aus dem Inhalt der Patentansprüche, welche dieser Beschreibung nachgestellt sind.The invention is therefore based on the object to simplify a seat belt buckle with the generic features in its structure and to improve its reliability. The solution to this problem arises, including advantageous refinements and developments of the invention from the content of the claims, which are adjusted to this description.

Die Erfindung sieht in ihrem Grundgedanken vor, dass die Trägheitsmasse an der Schiebetaste und/oder dem Gehäuse gehaltert und geführt ist und die Schiebetaste einen von ihrer Führung für die Trägheitsmasse beabstandeten und bezüglich der gehäusefesten Lagerachse des Übertragungshebels gegenüberliegenden Ansatz aufweist, wobei der Übertragungshebel mit seinen beiden Armen unmittelbar an der Trägheitsmasse und an dem Ansatz der Schiebetaste angreift. Mit der Erfindung ist der Vorteil verbunden, dass aufgrund der Führung der Trägheitsmasse an der Schiebetaste selbst der erforderliche Raumaufwand für die Unterbringung der Trägheitsmasse in dem Sicherheitsgurtverschluss verringert ist. Aufgrund des unmittelbaren Angriffes des Übertragungshebels an Trägheitsmasse und Schiebetaste ist eine Zwangskopplung der beiden Bauteile miteinander beziehungsweise gegeneinander vorgegeben, so dass die Funktionssicherheit bei entsprechend auftretenden Beschleunigungskräften gegeben ist, wobei aufgrund der zum Drehpunkt des Übertragungshebels gegenüberliegenden Anordnung der Verbindungspunkte des Übertragungshebels zur Trägheitsmasse einerseits und zur Schiebetaste andererseits das Auftreten von Rotationskräften vermieden ist. Die Masse der Trägheitsmasse sowie die Abmessung der Hebelarme wird so festgelegt, dass bei auftretenden Beschleunigungen entsprechend gleichgroße Momente auftreten, so dass der Verschluss schocksicher ausgelegt ist.The invention provides in its basic idea that the inertial mass is held and guided on the sliding key and / or the housing and the sliding key has a projection spaced from its guide for the inertial mass and opposite the housing-fixed bearing axis of the transmission lever approach, wherein the transmission lever with his engages both arms directly on the inertial mass and on the approach of the shift key. The invention has the advantage that due to the guidance of the inertial mass on the slide button itself, the space required for the accommodation of the inertial mass in the seat belt buckle is reduced. Due to the direct attack of the transmission lever to inertial mass and shift key forced coupling of the two components is given together or against each other, so that the reliability is given in accordance with occurring acceleration forces, due to the opposite to the pivot point of the transmission lever arrangement of the connection points of the transmission lever to the inertial mass on the one hand and Sliding on the other hand, the occurrence of rotational forces is avoided. The mass of the inertial mass and the size of the lever arms is determined so that when accelerations occurring correspondingly large moments occur, so that the shutter is designed shockproof.

Nach einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass an der Schiebetaste eine die Relativbewegung der Schiebetaste zur Trägheitsmasse ermöglichende Linearführung ausgebildet ist. Hiermit ist auch die Möglichkeit gegeben, die Trägheitsmasse an der Schiebetaste vorzumontieren, so dass die Endmontage des Sicherheitsgurtverschlusses entsprechend erleichtert ist.According to one exemplary embodiment of the invention, it is provided that a linear guide enabling the relative movement of the sliding key to the inertial mass is formed on the sliding key. This also gives the possibility of the inertial mass on the slide button vorzumontieren, so that the final assembly of the seat belt buckle is facilitated accordingly.

Nach einem Ausführungsbeispiel der Erfindung ist die Verbindung zwischen Trägheitsmasse und Übertragungshebel sowie zwischen Übertragungshebel und dem Ansatz der Schiebetaste jeweils als Stift-Schlitz-Verbindung ausgebildet. Da sich aufgrund der Verschwenkung des Übertragungshebels und der linearen Bewegung von Schiebetaste und Trägheitsmasse die wirksamen Hebelarme ändern, muss im Bereich der Verbindung der Bauteile zueinander ein entsprechender Spielraum vorgegeben sein.According to one embodiment of the invention, the connection between the inertial mass and the transmission lever and between the transmission lever and the approach of the sliding button is in each case designed as a pin-slot connection. Since change due to the pivoting of the transmission lever and the linear movement of the sliding key and inertial mass, the effective lever arms, a corresponding margin must be specified in the region of the connection of the components to each other.

Die Bewegungsverhältnisse sind vorteilhaft einzustellen, soweit nach einem Ausführungsbeispiel der Erfindung vorgesehen ist, dass die Verbindungen zwischen Trägheitsmasse und Übertragungshebel einerseits und zwischen Übertragungshebel und dem Ansatz der Schiebetaste andererseits auf verschiedenen Seiten einer durch die Lagerachse des Übertragungshebels verlaufenden, senkrecht zur Bewegungsebene der Schiebetaste ausgerichteten Ebenen liegen. Im einzelnen kann dabei vorgesehen, dass der Übertragungshebel in seiner Ausgangslage bei unbetätigter Schiebetaste gegen die Bewegungsrichtung der Schiebetaste derart geneigt angeordnet ist, dass die Verbindung zwischen dem Ansatz der Schiebetaste und dem Übertragungshebel der Einschubseite für die Einsteckzunge näher liegt als die Verbindung zwischen Übertragungshebel und Trägheitsmasse.The movement conditions are advantageous to adjust, as far as according to an embodiment of the invention, that the connections between inertial mass and transmission lever on the one hand and between the transmission lever and the approach of the sliding key on the other hand on different sides of a running through the bearing axis of the transmission lever, aligned perpendicular to the plane of movement of the sliding button levels lie. Specifically, it may be provided that the transmission lever is arranged inclined in its initial position with unactuated slide against the direction of movement of the slide button, that the connection between the approach of the slide button and the transmission lever of the insertion side for the insertion tongue is closer than the connection between transmission lever and inertial mass ,

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung wiedergegeben, welches nachstehend beschrieben ist. Die einzige Figur zeigt die für das Verständnis der Erfindung wesentlichen Bauteile Schiebetaste - Trägheitsmasse - Übertragungshebel - Verschlussgehäuse eines Sicherheitsgurtverschlusses in einer schematischen Darstellung.In the drawing, an embodiment of the invention is reproduced, which is described below. The single FIGURE shows the essential components for the understanding of the invention sliding button - inertial mass - transmission lever - lock housing a seat belt buckle in a schematic representation.

Der vollständige Aufbau eines Sicherheitsgurtverschlusses mit seinen maßgeblichen und im einzelnen vorgesehenen Einzelteilen sowie die im Rahmen des bestimmungsgemäßen Einsatzes eines derartigen Sicherheitsgurtverschlusses auftretenden Funktionsabläufe sind in der gattungsbildenden EP 0 212 507 B1 beschriebenThe complete construction of a seatbelt fastener with its authoritative and in detail provided individual parts as well as occurring in the context of the intended use of such a seat belt buckle functional sequences are in the generic EP 0 212 507 B1 described

Wie sich aus der Zeichnung ergibt, ist an einem Gehäuse 10 eines nicht weiter dargestellten Sicherheitsgurtverschlusses eine Schiebetaste 11 verschieblich geführt, die in der Zeichnung in ihrer Ausgangsposition dargestellt ist. Insofern ist die Schiebetaste in Richtung des Pfeils 20 in das Gehäuse 10 einschiebbar.As is apparent from the drawing, a sliding key 11 is displaceably guided on a housing 10 of a seat belt buckle, not shown, which is shown in the drawing in its initial position. In this respect, the slide button in the direction of arrow 20 in the housing 10 can be inserted.

An der Schiebetaste 11 ist eine Linearführung 13 ausgebildet, längs der eine Trägheitsmasse 12 verschieblich angeordnet ist, die über die Linearführung 13 gleichzeitig an der Schiebetaste gehaltert ist. Da sich, wie noch zu beschreiben ist, die Trägheitsmasse 12 gegenüber dem Gehäuse 10 verschieben können muss, ist die Trägheitsmasse 12 in einem im Gehäuse 10 ausgebildeten Schlitz 14 beweglich und darin geführt, so dass gleichzeitig darüber auch über die Führung der Trägheitsmasse 12 an der Schiebetaste 11 eine Fixierung der Schiebetaste 11 gegenüber dem Gehäuse 10 erfolgt.On the sliding button 11, a linear guide 13 is formed, along which an inertial mass 12 is slidably mounted, which is supported via the linear guide 13 at the same time on the sliding button. Since, as will be described, the inertial mass 12 must be able to move relative to the housing 10, the inertial mass 12 is movable in a slot 14 formed in the housing 10 and guided therein, so that at the same time about the leadership of the inertial mass 12 at the Sliding button 11 is a fixation of the slide button 11 relative to the housing 10.

Alternativ kann die Trägheitsmasse 12 auch verschieblich am Gehäuse 10, welches auch eine nicht dargestellte Abdeckung umfassen kann, gehaltert sein. Wichtig für die Halterung und Führung der Trägheitsmasse ist lediglich, dass keine rotatorische Beschleunigung auf die Schiebetaste 11 übertragen wird.Alternatively, the inertial mass 12 can also be displaceably mounted on the housing 10, which may also include a cover (not shown). Important for the holder and guide the inertial mass is only that no rotational acceleration is transmitted to the shift key 11.

In dem Gehäuse 10 ist um eine gehäusefeste Lagerachse 17 schwenkbar ein zweiarmiger Übertragungshebel 16 drehbar gelagert, dessen einer Arm 18 mit der Trägheitsmasse 12 verbunden ist. Der gegenüberliegende Arm 19 des Übertragungshebels 16 ist mit einem an der Schiebetaste 11 entsprechend angeordneten Ansatz 15 verbunden. Die Auslegung des Übertragungshebels 16 sowie seiner Lagerachse 17 am Gehäuse 10 ist bezüglich der Trägheitsmasse 12 und des Ansatzes 15 der Schiebetaste 11 derart getroffen, dass sich symmetrische Lager- und Verbindungsverhältnisse ergeben, die dazu führen, dass hinsichtlich des Zusammenwirkens von Trägheitsmasse 12 und Ansatz 15 der Schiebetaste 11 sich jeweils gleiche Hebelarme ergeben. Damit ist eine besonders einfache Art des Massenausgleichs gegeben, wobei mit entsprechendem Auslegungsaufwand auch andere Hebelverhältnisse eingestellt werden können.In the housing 10, a two-armed transmission lever 16 is rotatably mounted about a housing-fixed bearing axis 17 pivotally, one arm 18 is connected to the inertial mass 12. The opposite arm 19 of the transmission lever 16 is connected to a correspondingly arranged on the sliding button 11 approach 15. The interpretation of the transmission lever 16 and its bearing shaft 17 on the housing 10 is made with respect to the inertial mass 12 and the neck 15 of the shift key 11 such that symmetrical storage and connection conditions result that lead to the interaction of inertial mass 12 and approach 15th the shift key 11 each result in the same lever arms. For a particularly simple way of mass balance is given, with other leverage ratios can be adjusted with appropriate design effort.

Wird zur Betätigung des Sicherheitsgurtverschlusses im Sinne einer Entriegelung des Verschlusses die Schiebetaste 11 in Richtung des Pfeils 20 gegenüber dem Gehäuse 10 verschoben, so drückt der Ansatz 15 der Schiebetaste 11 auf den zugeordneten Arm 19 des Übertragungshebels 16 und bewirkt dessen Verschwenkung entgegen dem Uhrzeigersinn, so dass darüber der Arm 18 des Übertragungshebels 16 die Trägheitsmasse 12 längs der an der Schiebetaste 11 ausgebildeten Linearführung 13 entgegen der Bewegungsrichtung der Schiebetaste 11 in Richtung des Pfeils 20 verschiebt. Dies bedeutet, dass die Linearführung 13 an der Schiebetaste 11 eine solche Längserstreckung aufweisen muss, dass die für den Entriegelungshub der Schiebetaste 11 erforderliche Relativbewegung von Schiebetaste 11 und Trägheitsmasse 12 zueinander ermöglicht ist.If the sliding key 11 is displaced in the direction of the arrow 20 relative to the housing 10 in order to actuate the safety belt closure in the direction of the arrow 20, the projection 15 of the sliding key 11 presses on the associated arm 19 of the transmission lever 16 and causes it to pivot counterclockwise, then that on the arm 18 of the transmission lever 16, the inertial mass 12 along the slide button 11 formed on the linear guide 13 against the direction of movement of the slide button 11 in the direction of the arrow 20 moves. This means that the linear guide 13 on the sliding button 11 must have such a longitudinal extent that the required for the Entriegelungshub the shift key 11 relative movement of the shift key 11 and inertial mass 12 is mutually possible.

Wird der Sicherheitsgurtverschluss wie in der gattungsbildenden EP 0 212 507 B1 im einzelnen beschrieben einer Straffung unterzogen und bewegt sich daher in seiner Längsrichtung auch in Richtung des Pfeils 20, und wird am Ende des Straffvorganges das Gehäuse 10 entsprechend abgebremst, so will die Schiebetaste 11 aufgrund der ihr eigenen Masseträgheit der Straffrichtung weiter folgen, so dass es zu einem selbsttätigen Einschub der Schiebetaste 11 in das Gehäuse 10 in Richtung des Pfeils 20 kommen kann. Dieser selbsttätige Einschubbewegung wirkt nun die Trägheitsmasse 12 entgegen, die in gleicher Weise wie die Schiebetaste 11 während des Straffvorganges beschleunigt ist und insoweit eine mit der Schiebetaste 11 gleichgerichtete Verschiebebewegung in Richtung des Pfeils 20 ausführt. Bei entsprechender Auslegung der Trägheitsmasse 12 ist der Sicherheitsgurtverschluss aber auch zu Beginn der Straffbewegung, also bei Beschleunigung entgegen der Richtung des Pfeils 20, schocksicher ausgebildet, so dass die Schiebetaste 11 durch die Massenträgheit der Trägheitsmasse 12 bei Beginn des Straffvorganges nicht geöffnet wird. Im einzelnen übt im Rahmen ihrer Bewegung die Trägheitsmasse 10 zumindest eine auf den Übertragungshebel 16 einwirkende Beharrungskraft aus beziehungsweise verschwenkt den Übertragungshebel 16 im Uhrzeigersinn, so dass hierdurch die Schiebetaste 11 an ihrer Einschub- und Öffnungsbewegung in das Gehäuse 10 gehindert ist, die ja eine Verschwenkung des Übertragungshebels 16 entgegen dem Uhrzeigersinn voraussetzen würde. Damit liegt eine Schocksicherheit des Sicherheitsgurtverschlusses vor.Will the safety belt fastener as in the generic EP 0 212 507 B1 described in detail tightened and therefore moves in its longitudinal direction in the direction of arrow 20, and is on At the end of the tightening process, the housing 10 is decelerated accordingly, so the sliding button 11 wants to continue to follow the tightening direction due to its inherent inertia, so that an automatic insertion of the sliding button 11 into the housing 10 in the direction of the arrow 20 can occur. This automatic insertion movement now counteracts the inertial mass 12, which is accelerated in the same way as the sliding key 11 during the tightening process and insofar performs a sliding movement in the direction of the arrow 20 rectified by the sliding key 11. With appropriate design of the inertial mass 12 of the seat belt but also at the beginning of the tensioning movement, ie acceleration against the direction of the arrow 20, formed shock resistant, so that the sliding button 11 is not opened by the inertia of the inertial mass 12 at the beginning of the tightening process. Specifically, as part of their movement, the inertial mass 10 exerts at least one inertia force acting on the transmission lever 16 or pivots the transmission lever 16 in a clockwise direction, thereby preventing the sliding key 11 from being pushed into the housing 10 during its insertion and opening movement, which in turn causes pivoting the transmission lever 16 counterclockwise would assume. This provides shock resistance of the safety belt fastener.

Die in der vorstehenden Beschreibung, den Patentansprüchen, der Zusammenfassung und der Zeichnung offenbarten Merkmale des Gegenstandes dieser Unterlagen können einzeln als auch in beliebigen Kombinationen untereinander für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The features disclosed in the foregoing description, the claims, the abstract and the drawings of the subject matter of these documents may be essential individually as well as in any combination with each other for the realization of the invention in its various embodiments.

Claims (5)

  1. Safety belt fastener for receiving and locking an insertion tongue with a housing (10) and a push-in path, for the insertion tongue, arranged therein and containing an ejector subject to spring effect, with a lock which is mounted in the fastener and which cooperates with the tongue recess in the case of locking in such a manner that the insertion tongue is fixed via the lock in the housing (10), and with a sliding button (11) that is guided in a moveable manner in the housing (10) and that acts on the lock to cancel locking, wherein, to protect the safety belt fastener against shock, an inertial mass (12) that is movable in the movement direction of the sliding button (11) relative to the latter is arranged and can be coupled via a two-armed transmission lever (16) mounted in the housing (10) to the sliding button (11), characterised in that the inertial mass (12) is held and guided on the sliding button (11) and/or the housing (10) and the sliding button (11) has a dog (15) that is spaced apart from its guide (13) for the inertial mass (12) and is opposite the bearing shaft (17), which is fixed to the housing, of the transmission lever (16), wherein the transmission lever (16) acts with its two arms (18, 19) directly on the inertial mass (12) and on the dog (15) of the sliding button (11).
  2. Safety belt fastener according to Claim 1, characterised in that a linear guide (13) enabling the relative movement of the sliding button (11) with respect to the inertial mass (12) is formed on the sliding button (11) and/or the housing (10).
  3. Safety belt fastener according to Claim 1 or 2, characterised in that the connection between the inertial mass (12) and the transmission lever (16) as well as between the transmission lever (16) and the dog (15) of the sliding button (11) is in each case formed as a pin-slot connection.
  4. Safety belt fastener according to one of Claims 1 to 3, characterised in that the connections between the inertial mass (12) and the transmission lever (16) on the one hand and between the transmission lever (16) and the dog (15) of the sliding button (11) on the other are on different sides of a plane that runs through the bearing shaft (17) of the transmission lever (16) and that is orientated perpendicular to the movement plane of the sliding button (11).
  5. Safety belt fastener according to Claim 4, characterised in that the transmission lever (16) is arranged in its starting position, when the sliding button (11) is not actuated, in an inclined manner against the movement direction of the sliding button (11) such that the connection between the dog (15) of the sliding button (11) and the transmission lever (16) is closer to the push-in side for the insertion tongue than the connection between the transmission lever (16) and the inertial mass (12).
EP06724302A 2005-04-27 2006-04-13 Shock-absorbing safety belt buckle Active EP1887901B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005019496 2005-04-27
PCT/EP2006/003404 WO2006114204A1 (en) 2005-04-27 2006-04-13 Shock-absorbing safety belt buckle

Publications (2)

Publication Number Publication Date
EP1887901A1 EP1887901A1 (en) 2008-02-20
EP1887901B1 true EP1887901B1 (en) 2009-04-29

Family

ID=36716917

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Application Number Title Priority Date Filing Date
EP06724302A Active EP1887901B1 (en) 2005-04-27 2006-04-13 Shock-absorbing safety belt buckle

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Country Link
US (1) US7458136B2 (en)
EP (1) EP1887901B1 (en)
JP (1) JP5032464B2 (en)
KR (1) KR101258095B1 (en)
CN (1) CN100569132C (en)
AT (1) ATE429831T1 (en)
BR (1) BRPI0608593B1 (en)
DE (1) DE502006003615D1 (en)
ES (1) ES2324730T3 (en)
MX (1) MX2007013210A (en)
RU (1) RU2375941C2 (en)
WO (1) WO2006114204A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102008052856B3 (en) * 2008-10-23 2010-05-20 Autoliv Development Ab Shock-proof buckle for a motor vehicle
DE102012018070A1 (en) * 2012-02-07 2013-08-08 Trw Automotive Gmbh Belt lock with release lock
US8678440B1 (en) 2012-12-20 2014-03-25 Autoliv Asp, Inc. Retractor-lap pretensioner with single micro-gas generator

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Also Published As

Publication number Publication date
JP5032464B2 (en) 2012-09-26
WO2006114204A1 (en) 2006-11-02
BRPI0608593A2 (en) 2010-01-19
MX2007013210A (en) 2008-01-16
US20080127466A1 (en) 2008-06-05
RU2375941C2 (en) 2009-12-20
EP1887901A1 (en) 2008-02-20
KR20080003378A (en) 2008-01-07
BRPI0608593B1 (en) 2017-02-21
CN101166436A (en) 2008-04-23
US7458136B2 (en) 2008-12-02
ES2324730T3 (en) 2009-08-13
DE502006003615D1 (en) 2009-06-10
ATE429831T1 (en) 2009-05-15
JP2008538944A (en) 2008-11-13
KR101258095B1 (en) 2013-04-25
CN100569132C (en) 2009-12-16
RU2007143964A (en) 2009-06-10

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