EP0680705A2 - Safety belt buckle - Google Patents

Safety belt buckle Download PDF

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Publication number
EP0680705A2
EP0680705A2 EP95106076A EP95106076A EP0680705A2 EP 0680705 A2 EP0680705 A2 EP 0680705A2 EP 95106076 A EP95106076 A EP 95106076A EP 95106076 A EP95106076 A EP 95106076A EP 0680705 A2 EP0680705 A2 EP 0680705A2
Authority
EP
European Patent Office
Prior art keywords
locking
blocking
release button
closure according
locking member
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.)
Withdrawn
Application number
EP95106076A
Other languages
German (de)
French (fr)
Other versions
EP0680705A3 (en
Inventor
Joachim Biller
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
Publication of EP0680705A2 publication Critical patent/EP0680705A2/en
Publication of EP0680705A3 publication Critical patent/EP0680705A3/en
Withdrawn legal-status Critical Current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
    • 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
    • Y10T24/45665—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 pivotally connected interlocking component

Definitions

  • the invention relates to a fastener for seat belts, with a pivot bolt which is mounted in a load-bearing frame and engages in its locking position on a locking edge of a tongue, a locking member which is on the frame transversely to the pivoting direction of the pivot bolt between an open position in which it is the pivot bolt releases, and a locking position in which it blocks the swivel bolt in its engaged position, is mounted displaceably, and a release button also mounted on the frame, by the actuation of which the locking member can be moved into the open position.
  • Such a swivel bolt lock is known for example from DE 40 09 272 A1.
  • the locking member designed as a plate is supported in this embodiment by a compression spring against the swivel bolt and is moved directly by the release button.
  • the forces occurring on the release button and on the locking plate due to inertia at the end of a belt tensioning stroke, through which the lock is shifted towards the vehicle floor, are directed in the opening direction of the release button, so that special measures have to be taken to automatically open the lock to prevent.
  • a pawl is mounted on the release button, which due to its inertia is pivoted when the release button suddenly accelerates and dips into a latching opening on the frame of the closure.
  • the pawl must be pivoted very quickly so that the intended blocking of the release button occurs. This cannot always be guaranteed at extremely high accelerations of the closure.
  • the loads to be borne by the pawl assume very high values, which include both the entire mass of the release button and that of the locking plate and the pawl itself.
  • the invention creates a fastener for seat belts, which is secured against unintentional opening even at extremely high acceleration values of 4000 g or more and does not require any changes in principle to the proven design according to the swivel bolt principle.
  • the locking member which holds the pivot bolt in its closed position, is in turn blocked by at least one locking body in the locked position, which can be moved transversely to the direction of displacement of the locking member between a locked position and a release position. Because of its mobility, the locking member does not respond to accelerations only transversely to the direction of displacement of the locking member, the direction of which corresponds to the actuation direction of the release button. Therefore, the blocking body remains in its blocking position even with extremely high accelerations in this direction. The closure is therefore securely locked regardless of the timing.
  • the blocking body can in turn be locked in its blocking position by a blocking element which can be displaced parallel to the direction of displacement of the blocking element. Consequently, on the one hand the locking member is secured by the locking body against accelerations in the actuation direction of the release button, and on the other hand the blocking body is in turn secured against accelerations transverse to this direction by the blocking member. It follows that the closure is secured against accelerations in all directions.
  • the blocking member must first be displaced in order to release the locking body, which then in turn enables the locking member to be displaced in order to release the swivel bolt.
  • the required sequence of movements can easily be achieved by means of a two-armed deflection lever which is pivotably mounted on the locking member, the first end of which acts on the release button and the second end of which is connected to the blocking member.
  • the deflection lever, the blocking member and the parts of the release button acting thereon are mass-compensated for acceleration in the actuation direction of the release button, so that they remain relatively calm even at extremely high values of this acceleration.
  • the buckle for seat belts connects a conventional tongue 10 with a fitting 12 on which a belt tensioner, a so-called buckle tensioner, can engage.
  • the closure comprises a load-bearing frame 14 connected to the fitting 12, which is bent in a U-shape in plan view and between the legs of which a pivot bolt 16 is pivotally mounted.
  • the pivot bolt 16 engages with a hook 16a on a latching edge 10a of the tongue 10.
  • a locking plate 20 is displaceably guided in two guide slots 18, which are parallel to one another and to the tongue 10, in the legs of the frame 14.
  • a compression spring 22 is supported between the locking plate 20 and a support surface 16b on the swivel bolt 16 and applies an opening moment to the swivel bolt 16, but at the same time presses the locking plate 20 into a locked position in which it makes a stop for a raised neck 16c on the hook 16a forms the opposite side of the pivot bolt 16.
  • the locking plate 20 therefore holds the pivot bolt 16 in its closed position shown in FIG. 2.
  • a two-part release button 24a, 24b is also pivotably mounted on the frame 14.
  • the two parts 24a, 24b of the release button are pivotable about a common axis and spread apart at their free ends by spring force.
  • the part 24a of the release button lies against the adjacent edge of the locking plate 20.
  • the locking plate 20 On both sides of the locking plate 20 has a protruding bearing pin 26, on each of which a two-armed bell crank 28 is pivotally mounted by means of an elongated hole 28a.
  • a blocking plate 30 is connected in an articulated manner to the upper arm of the deflection lever 28.
  • the locking plate 30 is slidably mounted in two parallel guide slots 32 in the two legs of the frame 14 parallel to the locking plate 20.
  • a compression spring 34 By means of a compression spring 34, the blocking plate 30 is loaded in the opposite direction to the blocking plate 20 by the compression spring 18.
  • the end of the blocking plate 30 facing away from the deflection lever 28 lies over two blocking balls 36, each of which is mounted in a trough 38 of the blocking plate 20.
  • the blocking plate 30 prevents the blocking balls 36 from escaping from the troughs 38, as a result of which the blocking plate 20 is blocked in its position.
  • the deflection lever 28 On its arm facing away from the blocking plate 30, the deflection lever 28 has a shoulder 28b which projects through an opening 40 in the part 24a of the release button and bears against the part 24b thereof.
  • the mass distribution and the levers involved on the part 24b of the release button, the pivot bolt 28 and the blocking plate 30 are selected so that these parts are mass-compensated for accelerations in the actuation direction of the release button. Even with extremely high accelerations in this direction, these parts therefore remain motionless relative to the frame 14 of the closure.
  • the locking balls 36 are prevented from emerging from the troughs 38, as a result of which the locking plate 20 is blocked in its locking position and secures the swivel bolt 16 in its closed position.
  • the locking balls 36 When accelerating transversely to the direction of actuation of the release button, the locking balls 36 cannot deflect either, since they are enclosed between the locking plate 20 and the blocking plate 30. The closure is therefore secured against accelerations of any size and in any direction.
  • the release button is actuated in a direction which corresponds to the direction of insertion of the tongue 10, as in a conventional swivel bolt closure.
  • the part 24b of the release button first pushes the shoulder 28b of the deflection lever 28 and pivots it, as a result of which the blocking plate 30 is displaced in the guide slots 32 counter to the force of the compression spring 34 until the locking balls 36 are released.
  • the parts 24a and 24b of the release button lie against each other, so that now after the initial actuation stroke a second actuation stroke the locking plate 20 is moved against the force of the compression spring 22.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
  • Seats For Vehicles (AREA)

Abstract

The fastener has a locking element (20) which is blocked in its locking position by at least one locking body (36) in the form of a roller which is moveable across the direction in which the locking element moves between a blocking and release position. The locking body is blocked by a blocking element (30) moveable parallel to the direction in which the locking element moves. The release key (24a,b) touches one arm and the blocking element touches the other arm of a two-armed pivot mounted reversing lever. The reversing lever is mounted by an elongated hole on a bearing pin (26) on the locking element. <IMAGE>

Description

Die Erfindung betrifft einen Verschluß für Sicherheitsgurte, mit einem Schwenkriegel, der in einem lasttragenden Rahmen gelagert ist und in seiner Sperrstellung an einer Rastkante einer Steckzunge angreift, einem Sperrglied, das am Rahmen quer zur Schwenkrichtung des Schwenkriegels zwischen einer Öffnungsstellung, in der es den Schwenkriegel freigibt, und einer Sperrstellung, in der es den Schwenkriegel in seiner Eingriffsstellung blockiert, verschiebbar gelagert ist, und einer gleichfalls am Rahmen gelagerten Lösetaste, durch deren Betätigung das Sperrglied in die Öffnungsstellung verschiebbar ist.The invention relates to a fastener for seat belts, with a pivot bolt which is mounted in a load-bearing frame and engages in its locking position on a locking edge of a tongue, a locking member which is on the frame transversely to the pivoting direction of the pivot bolt between an open position in which it is the pivot bolt releases, and a locking position in which it blocks the swivel bolt in its engaged position, is mounted displaceably, and a release button also mounted on the frame, by the actuation of which the locking member can be moved into the open position.

Ein solcher Schwenkriegel-Verschluß ist beispielsweise aus der DE 40 09 272 A1 bekannt. Das als Platte ausgebildete Sperrglied ist bei dieser Ausführung durch eine Druckfeder gegen den Schwenkriegel abgestützt und wird unmittelbar durch die Lösetaste verschoben. Die an der Lösetaste und an der Sperrplatte durch Massenträgheit auftretenden Kräfte am Ende eines Gurtstrafferhubes, durch den der Verschluß zum Fahrzeugboden hin verlagert wird, sind in Öffnungsrichtung der Lösetaste gerichtet, so daß besondere Maßnahmen ergriffen werden müssen, um ein selbsttätiges Öffnen des Verschlusses zu verhindern. Zu diesem Zweck ist an der Lösetaste eine Sperrklinke gelagert, die aufgrund ihrer Massenträgheit bei plötzlicher Beschleunigung der Lösetaste verschwenkt wird und in eine Rastöffnung am Rahmen des Verschlusses eintaucht. Die Verschwenkung der Klinke muß sehr schnell erfolgen, damit die beabsichtigte Blockierung der Lösetaste eintritt. Bei extrem hohen Beschleunigungen des Verschlusses kann dies nicht immer gewährleistet werden. Überdies nehmen die von der Klinke aufzunehmenden Belastungen sehr hohe Werte an, in die sowohl die gesamte Masse der Lösetaste als auch die der Sperrplatte und der Sperrklinke selbst eingehen.Such a swivel bolt lock is known for example from DE 40 09 272 A1. The locking member designed as a plate is supported in this embodiment by a compression spring against the swivel bolt and is moved directly by the release button. The forces occurring on the release button and on the locking plate due to inertia at the end of a belt tensioning stroke, through which the lock is shifted towards the vehicle floor, are directed in the opening direction of the release button, so that special measures have to be taken to automatically open the lock to prevent. For this purpose, a pawl is mounted on the release button, which due to its inertia is pivoted when the release button suddenly accelerates and dips into a latching opening on the frame of the closure. The pawl must be pivoted very quickly so that the intended blocking of the release button occurs. This cannot always be guaranteed at extremely high accelerations of the closure. In addition, the loads to be borne by the pawl assume very high values, which include both the entire mass of the release button and that of the locking plate and the pawl itself.

Durch die Erfindung wird ein Verschluß für Sicherheitsgurte geschaffen, der auch bei extrem hohen Beschleunigungswerten von 4000 g oder mehr gegen unbeabsichtigtes Öffnen gesichert ist und keine prinzipiellen Änderungen an der bewährten Bauform nach dem Schwenkriegel-Prinzip erfordert.The invention creates a fastener for seat belts, which is secured against unintentional opening even at extremely high acceleration values of 4000 g or more and does not require any changes in principle to the proven design according to the swivel bolt principle.

Gemäß der Erfindung ist das Sperrglied, welches den Schwenkriegel in seiner verschlußstellung hält, seinerseits durch wenigstens einen Sperrkörper in der Sperrstellung blockiert, der quer zur Verschieberichtung des Sperrgliedes zwischen einer Blockierstellung und einer Freigabestellung bewegbar ist. Das Sperrglied spricht aufgrund seiner Beweglichkeit nur quer zur Verschieberichtung des Sperrgliedes nicht auf Beschleunigungen an, deren Richtung mit der Betätigungsrichtung der Lösetaste übereinstimmt. Daher verbleibt der Sperrkörper auch bei extrem hohen Beschleunigungen in dieser Richtung in seiner Blockierstellung. Der Verschluß ist also unabhängig von zeitlichen Abläufen sicher verriegelt.According to the invention, the locking member, which holds the pivot bolt in its closed position, is in turn blocked by at least one locking body in the locked position, which can be moved transversely to the direction of displacement of the locking member between a locked position and a release position. Because of its mobility, the locking member does not respond to accelerations only transversely to the direction of displacement of the locking member, the direction of which corresponds to the actuation direction of the release button. Therefore, the blocking body remains in its blocking position even with extremely high accelerations in this direction. The closure is therefore securely locked regardless of the timing.

Bei der bevorzugten Ausführungsform des Verschlusses ist der Sperrkörper wiederum durch ein parallel zu der Verschieberichtung des Sperrgliedes verschiebbares Blockierglied in seiner Blockierstellung arretierbar. Folglich ist einerseits das Sperrglied durch den Sperrkörper gegen Beschleunigungen in Betätigungsrichtung der Lösetaste gesichert, und andererseits ist der Sperrkörper seinerseits gegen Beschleunigungen quer zu dieser Richtung durch das Blockierglied gesichert. Daraus ergibt sich, daß der Verschluß insgesamt gegen Beschleunigungen in jeder Richtung gesichert ist.In the preferred embodiment of the closure, the blocking body can in turn be locked in its blocking position by a blocking element which can be displaced parallel to the direction of displacement of the blocking element. Consequently, on the one hand the locking member is secured by the locking body against accelerations in the actuation direction of the release button, and on the other hand the blocking body is in turn secured against accelerations transverse to this direction by the blocking member. It follows that the closure is secured against accelerations in all directions.

Zum Lösen des Verschlusses muß bei dieser Ausführungsform erst das Blockierglied verlagert werden, um den Sperrkörper freizugeben, der dann seinerseits eine Verschiebung des Sperrgliedes ermöglicht, um den Schwenkriegel freizugeben. Der erforderliche Bewegungsablauf läßt sich leicht mittels eines am Sperrglied schwenkbar gelagerten, zweiarmigen Umlenkhebels erreichen, an dessen erstem Ende die Lösetaste angreift und dessen zweites Ende an das Blockierglied angeschlossen ist. Der Umlenkhebel, das Blockierglied und die an diesem angreifenden Teile der Lösetaste sind gegenüber Beschleunigung in Betätigungsrichtung der Lösetaste massenkompensiert, so daß sie auch bei extrem hohen Werten dieser Beschleunigung relativ in Ruhe bleiben.To release the lock in this embodiment, the blocking member must first be displaced in order to release the locking body, which then in turn enables the locking member to be displaced in order to release the swivel bolt. The required sequence of movements can easily be achieved by means of a two-armed deflection lever which is pivotably mounted on the locking member, the first end of which acts on the release button and the second end of which is connected to the blocking member. The deflection lever, the blocking member and the parts of the release button acting thereon are mass-compensated for acceleration in the actuation direction of the release button, so that they remain relatively calm even at extremely high values of this acceleration.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung und aus der Zeichnung, auf die Bezug genommen wird. In der Zeichnung zeigen:

Fig. 1
eine schematische Perspektivansicht der wesentlichen Funktionsteile des Verschlusses;
Fig. 2
eine schematische Seitenansicht des Verschlusses im Zustand mit verriegelter Steckzunge und unbetätigter Lösetaste;
Fig. 3
denselben Verschluß bei beginnender Betätigung der Lösetaste;
Fig. 4
den Verschluß in der Endphase der Betätigung der Lösetaste; und
Fig. 5
den Verschluß im geöffneten Zustand bei vollständig eingedrückter Lösetaste.
Further features and advantages of the invention will become apparent from the following description and from the drawing, to which reference is made. The drawing shows:
Fig. 1
a schematic perspective view of the essential functional parts of the closure;
Fig. 2
a schematic side view of the closure in the state with locked tongue and unactuated release button;
Fig. 3
same lock when the release button is pressed;
Fig. 4
the closure in the final phase of actuation of the release button; and
Fig. 5
the closure in the open state with the release button fully pressed.

Der Verschluß für Sicherheitsgurte verbindet eine herkömmliche Steckzunge 10 mit einem Beschlag 12, an dem ein Gurtstraffer, ein sogenannter Schloßstraffer, angreifen kann. Der Verschluß umfaßt einen mit dem Beschlag 12 verbundenen lasttragenden Rahmen 14, der in Draufsicht U-förmig gebogen ist und zwischen dessen Schenkeln ein Schwenkriegel 16 schwenkbar gelagert ist. Im geschlossenen Zustand (Fig. 2) greift der Schwenkriegel 16 mit einem Haken 16a an einer Rastkante 10a der Steckzunge 10 an. In zwei zueinander und zur Steckzunge 10 parallelen Führungsschlitzen 18 in den Schenkeln des Rahmens 14 ist eine Sperrplatte 20 verschiebbar geführt. Eine Druckfeder 22 ist zwischen der Sperrplatte 20 und einer Stützfläche 16b am Schwenkriegel 16 abgestützt und beaufschlagt den Schwenkriegel 16 mit einem Öffnungsmoment, drückt aber gleichzeitig die Sperrplatte 20 in eine Sperrstellung, in der sie einen Anschlag für einen hochgezogenen Ansatz 16c auf der vom Haken 16a abgewandten Seite des Schwenkriegels 16 bildet. Die Sperrplatte 20 hält daher den Schwenkriegel 16 in seiner in Fig. 2 gezeigten Schließstellung.The buckle for seat belts connects a conventional tongue 10 with a fitting 12 on which a belt tensioner, a so-called buckle tensioner, can engage. The closure comprises a load-bearing frame 14 connected to the fitting 12, which is bent in a U-shape in plan view and between the legs of which a pivot bolt 16 is pivotally mounted. In the closed state (FIG. 2), the pivot bolt 16 engages with a hook 16a on a latching edge 10a of the tongue 10. A locking plate 20 is displaceably guided in two guide slots 18, which are parallel to one another and to the tongue 10, in the legs of the frame 14. A compression spring 22 is supported between the locking plate 20 and a support surface 16b on the swivel bolt 16 and applies an opening moment to the swivel bolt 16, but at the same time presses the locking plate 20 into a locked position in which it makes a stop for a raised neck 16c on the hook 16a forms the opposite side of the pivot bolt 16. The locking plate 20 therefore holds the pivot bolt 16 in its closed position shown in FIG. 2.

Am Rahmen 14 ist ferner eine zweiteilige Lösetaste 24a, 24b schwenkbar gelagert. Die beiden Teile 24a, 24b der Lösetaste sind um eine gemeinsame Achse schwenkbar sowie an ihren freien Enden durch Federkraft voneinander gespreizt. Dabei liegt der Teil 24a der Lösetaste an der benachbarten Kante der Sperrplatte 20 an.A two-part release button 24a, 24b is also pivotably mounted on the frame 14. The two parts 24a, 24b of the release button are pivotable about a common axis and spread apart at their free ends by spring force. The part 24a of the release button lies against the adjacent edge of the locking plate 20.

An ihren beiden Seiten besitzt die Sperrplatte 20 je einen abstehenden Lagerzapfen 26, auf dem jeweils ein zweiarmiger Umlenkhebel 28 mittels eines Langlochs 28a schwenkbar gelagert ist. An dem oberen Arm des Umlenkhebels 28 ist eine Blockierplatte 30 gelenkig angeschlossen. Die Blockierplatte 30 ist in zwei parallelen Führungsschlitzen 32 in den beiden Schenkeln des Rahmens 14 parallel zur Sperrplatte 20 verschiebbar gelagert. Durch eine Druckfeder 34 wird die Blockierplatte 30 in entgegengesetzter Richtung wie die Sperrplatte 20 durch die Druckfeder 18 belastet.On both sides of the locking plate 20 has a protruding bearing pin 26, on each of which a two-armed bell crank 28 is pivotally mounted by means of an elongated hole 28a. A blocking plate 30 is connected in an articulated manner to the upper arm of the deflection lever 28. The locking plate 30 is slidably mounted in two parallel guide slots 32 in the two legs of the frame 14 parallel to the locking plate 20. By means of a compression spring 34, the blocking plate 30 is loaded in the opposite direction to the blocking plate 20 by the compression spring 18.

Bei der in Fig. 2 gezeigten Schließstellung liegt das von dem Umlenkhebel 28 abgewandte Ende der Blockierplatte 30 über zwei Sperrkugeln 36, die in je einer Mulde 38 der Sperrplatte 20 gelagert sind. Die Blockierplatte 30 verhindert ein Austreten der Sperrkugeln 36 aus den Mulden 38, wodurch die Sperrplatte 20 in ihrer Stellung blockiert wird.In the closed position shown in FIG. 2, the end of the blocking plate 30 facing away from the deflection lever 28 lies over two blocking balls 36, each of which is mounted in a trough 38 of the blocking plate 20. The blocking plate 30 prevents the blocking balls 36 from escaping from the troughs 38, as a result of which the blocking plate 20 is blocked in its position.

An seinem von der Blockierplatte 30 abgewandten Arm besitzt der Umlenkhebel 28 einen Ansatz 28b, der durch eine Öffnung 40 in dem Teil 24a der Lösetaste ragt und an deren Teil 24b anliegt. Die Massenverteilung und die beteiligten Hebel an dem Teil 24b der Lösetaste, dem Schwenkriegel 28 und der Blockierplatte 30 sind so gewählt, daß diese Teile gegenüber Beschleunigungen in Betätigungsrichtung der Lösetaste massenkompensiert sind. Auch bei extrem hohen Beschleunigungen in dieser Richtung bleiben diese Teile daher relativ zum Rahmen 14 des Verschlusses unbewegt. Folglich sind die Sperrkugeln 36 daran gehindert, aus den Mulden 38 auszutreten, wodurch die Sperrplatte 20 in ihrer Sperrstellung blockiert ist und den Schwenkriegel 16 in seiner Schließstellung sichert. Bei Beschleunigung quer zur Betätigungsrichtung der Lösetaste können die Sperrkugeln 36 ebenfalls nicht ausweichen, da sie zwischen der Sperrplatte 20 und der Blockierplatte 30 eingeschlossen sind. Der Verschluß ist daher gegen Beschleunigungen jeder Größe und in jeder Richtung gesichert.On its arm facing away from the blocking plate 30, the deflection lever 28 has a shoulder 28b which projects through an opening 40 in the part 24a of the release button and bears against the part 24b thereof. The mass distribution and the levers involved on the part 24b of the release button, the pivot bolt 28 and the blocking plate 30 are selected so that these parts are mass-compensated for accelerations in the actuation direction of the release button. Even with extremely high accelerations in this direction, these parts therefore remain motionless relative to the frame 14 of the closure. As a result, the locking balls 36 are prevented from emerging from the troughs 38, as a result of which the locking plate 20 is blocked in its locking position and secures the swivel bolt 16 in its closed position. When accelerating transversely to the direction of actuation of the release button, the locking balls 36 cannot deflect either, since they are enclosed between the locking plate 20 and the blocking plate 30. The closure is therefore secured against accelerations of any size and in any direction.

Zum Öffnen des Verschlusses wird wie bei einem herkömmlichen Schwenkriegel-Verschluß die Lösetaste in einer Richtung betätigt, die der Einsteckrichtung der Steckzunge 10 entspricht. Der Teil 24b der Lösetaste schiebt zunächst den Ansatz 28b des Umlenkhebels 28 vor und verschwenkt diesen, wodurch die Blockierplatte 30 entgegen der Kraft der Druckfeder 34 in den Führungsschlitzen 32 verschoben wird, bis die Sperrkugeln 36 freikommen. In diesem, in Fig. 3 gezeigten Zustand liegen die Teile 24a und 24b der Lösetaste aneinander, so daß nunmehr nach dem einleitenden ersten Betätigungshub über einen zweiten Betätigungshub die Sperrplatte 20 entgegen der Kraft der Druckfeder 22 verschoben wird.To open the closure, the release button is actuated in a direction which corresponds to the direction of insertion of the tongue 10, as in a conventional swivel bolt closure. The part 24b of the release button first pushes the shoulder 28b of the deflection lever 28 and pivots it, as a result of which the blocking plate 30 is displaced in the guide slots 32 counter to the force of the compression spring 34 until the locking balls 36 are released. In this state, shown in Fig. 3, the parts 24a and 24b of the release button lie against each other, so that now after the initial actuation stroke a second actuation stroke the locking plate 20 is moved against the force of the compression spring 22.

Wie aus Fig. 4 ersichtlich ist, werden nun die Sperrkugeln 36 aus den Mulden 38 herausgedrückt, so daß die Sperrplatte 20 unbehindert weiter vorgeschoben werden kann, bis sie den Schwenkriegel 16 freigibt. Dieser wird nun durch die Druckfeder 22 im Uhrzeigersinn verschwenkt, wobei der Haken 16a von der Rastkante 10a der Steckzunge 10 gelöst wird und diese nunmehr aus dem Verschluß herausgezogen werden kann.As can be seen from FIG. 4, the locking balls 36 are now pushed out of the troughs 38, so that the locking plate 20 can be pushed forward without hindrance until it releases the swivel bolt 16. This is now pivoted clockwise by the compression spring 22, the hook 16a being released from the latching edge 10a of the tongue 10 and this can now be pulled out of the closure.

Claims (8)

Verschluß für Sicherheitsgurte, mit einem Schwenkriegel (16), der in einem lasttragenden Rahmen (14) gelagert ist und in seiner Sperrstellung an einer Rastkante einer Steckzunge (10) angreift, einem Sperrglied (20), das am Rahmen (14) quer zur Schwenkrichtung des Schwenkriegels (16) zwischen einer Öffnungsstellung, in der es den Schwenkriegel freigibt, und einer Sperrstellung, in der es den Schwenkriegel in seiner Eingriffsstellung blockiert, verschiebbar gelagert ist, und einer gleichfalls am Rahmen gelagerten Lösetaste (24a, 24b), durch deren Betätigung das Sperrglied (20) in die Öffnungsstellung verschiebbar ist, dadurch gekennzeichnet, daß das Sperrglied (20) seinerseits durch wenigstens einen Sperrkörper (36) in der Sperrstellung blockierbar ist, der quer zur Verschieberichtung des Sperrgliedes (20) zwischen einer Blockierstellung und einer Freigabestellung bewegbar ist.Buckle for seat belts, with a swivel bolt (16), which is mounted in a load-bearing frame (14) and engages in its locked position on a locking edge of a tongue (10), a locking member (20) on the frame (14) transversely to the swivel direction of the pivot bolt (16) between an open position in which it releases the pivot bolt and a blocking position in which it blocks the pivot bolt in its engaged position, and a release button (24a, 24b) also mounted on the frame, by its actuation the locking member (20) can be moved into the open position, characterized in that the locking member (20) in turn can be locked in the locking position by at least one locking body (36) which can be moved transversely to the direction of displacement of the locking member (20) between a locking position and a release position is. Verschluß nach Anspruch 1, dadurch gekennzeichnet, daß der Sperrkörper (36) durch ein parallel zu der Verschieberichtung des Sperrgliedes verschiebbares Blockierglied (30) in seiner Blockierstellung arretierbar ist.Closure according to claim 1, characterized in that the blocking body (36) can be locked in its blocking position by a blocking element (30) which can be displaced parallel to the direction of displacement of the blocking element. Verschluß nach Anspruch 2, dadurch gekennzeichnet, daß die Lösetaste (24a, 24b) an dem einen und das Blockierglied (30) am anderen Arm eines zweiarmigen, schwenkbar gelagerten Umlenkhebels (28) angreift.Closure according to claim 2, characterized in that the release button (24a, 24b) acts on one arm and the blocking member (30) on the other arm of a two-armed, pivotably mounted deflection lever (28). Verschluß nach Anspruch 3, dadurch gekennzeichnet, daß der Umlenkhebel (28) an dem Sperrglied (20) schwenkbar gelagert ist.Closure according to claim 3, characterized in that the deflection lever (28) is pivotally mounted on the locking member (20). Verschluß nach Anspruch 4, dadurch gekennzeichnet, daß die Lösetaste (24a, 24b) über einen ersten Betätigungshub erst an dem Umlenkhebel (28) angreift sowie nach Überführung des Blockiergliedes (30) in eine den Sperrkörper (36) freigebende Stellung mit einem weiteren Betätigungshub an dem Sperrglied (20) angreift.Closure according to claim 4, characterized in that the release button (24a, 24b) only acts on the deflection lever (28) via a first actuation stroke and after transfer of the blocking member (30) engages in a position releasing the blocking body (36) with a further actuation stroke on the blocking member (20). Verschluß nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Umlenkhebel (28) mittels eines Langlochs (28a) auf einem Lagerzapfen (26) am Sperrglied (20) gelagert ist.Closure according to claim 3 or 4, characterized in that the deflection lever (28) is mounted on a bearing pin (26) on the locking member (20) by means of an elongated hole (28a). Verschluß nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Sperrkörper (36) durch einen Wälzkörper gebildet ist, der in eine Mulde (38) des Sperrgliedes (20) eingreift.Closure according to one of the preceding claims, characterized in that the locking body (36) is formed by a rolling body which engages in a trough (38) of the locking member (20). Verschluß nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Umlenkhebel (28), das Blockierglied (30) und die an diesem angreifenden Teile der Lösetaste (24b) gegenüber Beschleunigung in Betätigungsrichtung der Lösetaste massenkompensiert sind.Closure according to one of the preceding claims, characterized in that the deflection lever (28), the blocking member (30) and the parts of the release button (24b) engaging thereon are mass-compensated for acceleration in the actuation direction of the release button.
EP95106076A 1994-05-06 1995-04-24 Safety belt buckle. Withdrawn EP0680705A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4416138 1994-05-06
DE4416138A DE4416138C2 (en) 1994-05-06 1994-05-06 Seat belt buckle

Publications (2)

Publication Number Publication Date
EP0680705A2 true EP0680705A2 (en) 1995-11-08
EP0680705A3 EP0680705A3 (en) 1997-01-22

Family

ID=6517553

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Application Number Title Priority Date Filing Date
EP95106076A Withdrawn EP0680705A3 (en) 1994-05-06 1995-04-24 Safety belt buckle.

Country Status (6)

Country Link
US (1) US5542162A (en)
EP (1) EP0680705A3 (en)
JP (1) JP2896325B2 (en)
CZ (1) CZ280988B6 (en)
DE (1) DE4416138C2 (en)
ES (1) ES2080038T1 (en)

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EP1077037B1 (en) * 1999-08-17 2004-10-27 Delphi Automotive Systems Sungwoo Co., Ltd. Seat belt buckle
JP3844179B2 (en) * 1999-08-26 2006-11-08 タカタ株式会社 Buckle and seat belt device provided with the same
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Also Published As

Publication number Publication date
ES2080038T1 (en) 1996-02-01
JP2896325B2 (en) 1999-05-31
JPH0847407A (en) 1996-02-20
US5542162A (en) 1996-08-06
CZ116995A3 (en) 1995-12-13
EP0680705A3 (en) 1997-01-22
DE4416138A1 (en) 1995-11-09
CZ280988B6 (en) 1996-05-15
DE4416138C2 (en) 2002-06-13

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