EP0721304B1 - Safety belt buckle - Google Patents

Safety belt buckle Download PDF

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Publication number
EP0721304B1
EP0721304B1 EP95927723A EP95927723A EP0721304B1 EP 0721304 B1 EP0721304 B1 EP 0721304B1 EP 95927723 A EP95927723 A EP 95927723A EP 95927723 A EP95927723 A EP 95927723A EP 0721304 B1 EP0721304 B1 EP 0721304B1
Authority
EP
European Patent Office
Prior art keywords
locking
buckle
release button
arrest
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.)
Expired - Lifetime
Application number
EP95927723A
Other languages
German (de)
French (fr)
Other versions
EP0721304A1 (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 EP0721304A1 publication Critical patent/EP0721304A1/en
Application granted granted Critical
Publication of EP0721304B1 publication Critical patent/EP0721304B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/2503Safety buckles
    • A44B11/2507Safety buckles actuated by a push-button
    • A44B11/2523Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and in the same direction as the fastening action
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/45639Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member
    • Y10T24/45644Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member for shifting pivotally connected interlocking component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/4566Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member
    • Y10T24/45665Receiving 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/4566Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member
    • Y10T24/4567Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member for shifting slidably connected and guided, nonself-biasing, interlocking component

Definitions

  • the invention relates to a fastener for seat belts, with a swivel bolt that is in a load-bearing frame is stored and in its locked position on a locking edge a tongue attacks a locking member on the frame transversely to the swivel direction of the swivel bar between one Open position in which it releases the swivel bolt, and a locking position in which there is the swivel bolt in its
  • the engagement position is blocked, slidably mounted, and a release button also mounted on the frame, by the Actuating the locking member in the open position is, the locking member in turn by at least blocked a blocking body in the blocking position, the transverse to the direction of displacement of the locking member between one Blocking position and a release position is movable.
  • Such a swivel bolt closure is, for example, from known from DE 40 09 272 A1.
  • the trained as a plate Locking element is in this version by a compression spring supported against the swivel bolt and becomes immediate moved by the release button.
  • the on the release button and on the locking plate due to inertia forces on End of a belt pretensioner stroke through which the buckle is closed
  • the floor of the vehicle is moved in the opening direction the release button is directed so that special measures are taken to be able to open the lock automatically to prevent.
  • the release button a pawl mounted due to its inertia when the release button suddenly accelerates is pivoted and into a latching opening on the frame of the closure immersed.
  • the invention provides a fastener for seat belts created, even at extremely high acceleration values of 4000 g or more secured against unintentional opening is and no fundamental changes to the proven design according to the hook principle.
  • the locking body is in the locked position of the pivot bolt blocked, so that the locking member which holds the swivel bolt in its locked position cannot release the swivel bolt during acceleration. Because the locking body even at extremely high accelerations remains in its blocking position, the closure is locked securely regardless of the schedule.
  • the closure in a first advantageous embodiment of the closure is the blocking body in turn by a parallel slidable to the direction of displacement of the locking member Blocking plate can be locked in its blocking position.
  • the locking member on the one hand by the locking body against accelerations in the direction of actuation of the release button secured, and on the other hand, the locking body is in turn against accelerations across this direction through the Blocking plate secured. It follows that the closure overall against accelerations in every direction is secured.
  • the second advantageous embodiment of the closure is based on the same principle as the first.
  • the locking body is, however, rotatably mounted around the rolling element, two-armed blocking lever in its blocking position locked.
  • the release button preferably engages the first Arm of the locking lever on; the second arm of the locking lever forms a balancing mass through which the mass of the release button is compensated.
  • the locking member Through the locking body in the Locked position blocked, and this condition remains get extreme accelerations in all directions because all masses involved in the blocking process compensate each other.
  • overcompensation is provided by the blocking lever also when accelerating in unusual directions a stop on the frame of the closure is held.
  • This overcompensation is caused by an additional mass body causes the rotatable next to the blocking lever on the Locking body is mounted and with the first arm of the Blocking lever on the side facing away from the release button is coupled in that it is resilient in by a spring Attachment to this first arm is held.
  • the buckle for seat belts combines a conventional Tongue 10 with a fitting 12 on which a belt tensioner, a so-called lock tightener can attack.
  • the closure comprises one connected to the fitting 12 load-bearing frame 14, which is bent in a U-shape in plan view is and between the legs of a swivel bar 16th is pivotally mounted.
  • the hook 16 engages with a hook 16a on one Locking edge 10a of the tongue 10.
  • a locking plate 20 is slidable guided.
  • a compression spring 22 is between the locking plate 20 and a support surface 16b supported on the pivot bolt 16 and applies an opening moment to the swivel bolt 16, but at the same time presses the locking plate 20 into one Locked position in which they stop for a hoisted Approach 16c on the side facing away from hook 16a of the pivot bolt 16 forms.
  • the locking plate 20 therefore holds the pivot bolt 16 in its closed position shown in FIG. 2.
  • the two parts 24a, 24b of the release button are pivotable about a common axis and on their free ends spread apart by spring force.
  • the part 24a of the release button on the adjacent edge the locking plate 20.
  • the locking plate 20 has one on each of its two sides protruding journal 26, on each of which a two-armed Deflection lever 28 pivotally mounted by means of an elongated hole 28a is.
  • On the upper arm of the bell crank 28 is one Blocking plate 30 articulated.
  • the blocking plate 30 is in two parallel guide slots 32 in the two legs of the frame 14 parallel to the locking plate 20th slidably mounted.
  • a compression spring 34 Blocking plate 30 Blocking plate 30 in the opposite direction to that Lock plate 20 loaded by the compression spring 18.
  • the bellcrank 28 has a shoulder 28b through an opening 40 protrudes in the part 24a of the release button and on the part 24b thereof is present.
  • the mass distribution and the levers involved the part 24b of the release button, the pivot bolt 28 and the Blocking plate 30 are chosen so that these parts are opposite Accelerations in the actuation direction of the release button are mass compensated are. Even at extremely high accelerations in this direction these parts therefore remain relative to the Frame 14 of the closure is still. Hence they are Blocking balls 36 prevented from emerging from the troughs 38, whereby the locking plate 20 in its locked position is blocked and the pivot bolt 16 in its closed position backs up. When accelerating across the direction of actuation the release button, the locking balls 36 can also do not dodge because they are between the locking plate 20 and the Blocking plate 30 are included. The closure is therefore against accelerations of any size and in any direction secured.
  • FIGS. 1-5 are those elements that are essential correspond to the embodiment according to FIGS. 1-5, with reference numbers increased by 100.
  • the swivel bolt is in the closed position 116 held by a locking plate 120 on its underside a trough running across its entire width 138.
  • This Lock roller 136 is in two opposing elongated holes 137 displaceable in the legs of the frame 114 stored. These elongated holes 137 extend perpendicular to the Direction of displacement of the lock plate 120.
  • Blocking lever 130 is rotatably supported by means of bearing bushes 139.
  • the two-armed blocking lever 130 has a first arm 130a on by an actuation extension on the release button 124b can be actuated.
  • the second arm 130b of the lock lever 130 forms a balancing mass, through which the sum of the Masses of the release button 124b and the first arm 130a compensated becomes.
  • FIG second arm 130b of the blocking lever 30 In the idle state shown in FIG second arm 130b of the blocking lever 30 with its stop surface 129a in contact with a stop 129 of the frame 114.
  • each end of the lock roller 136 is also next to the Blocking lever 139 an additional mass body 140 rotatable stored.
  • Each of these mass bodies consists of two parallel ones Cheeks 140a, 140b on either side of the first arm 130a of the respective blocking lever 130 are arranged and through a leg spring 135 with this on its from the Release button 124b facing away from the system.

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, wobei das Sperrglied seinerseits durch wenigstens einen Sperrkörper in der Sperrstellung blockiert, der quer zur Verschieberichtung des Sperrgliedes zwischen einer Blockierstellung und einer Freigabestellung bewegbar ist.The invention relates to a fastener for seat belts, with a swivel bolt that is in a load-bearing frame is stored and in its locked position on a locking edge a tongue attacks a locking member on the frame transversely to the swivel direction of the swivel bar between one Open position in which it releases the swivel bolt, and a locking position in which there is the swivel bolt in its The engagement position is blocked, slidably mounted, and a release button also mounted on the frame, by the Actuating the locking member in the open position is, the locking member in turn by at least blocked a blocking body in the blocking position, the transverse to the direction of displacement of the locking member between one Blocking position and a release position is movable.

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 closure is, for example, from known from DE 40 09 272 A1. The trained as a plate Locking element is in this version by a compression spring supported against the swivel bolt and becomes immediate moved by the release button. The on the release button and on the locking plate due to inertia forces on End of a belt pretensioner stroke through which the buckle is closed The floor of the vehicle is moved in the opening direction the release button is directed so that special measures are taken to be able to open the lock automatically to prevent. For this purpose, the release button a pawl mounted due to its inertia when the release button suddenly accelerates is pivoted and into a latching opening on the frame of the closure immersed. The pivoting of the jack must be very done quickly so the intended blocking of the Release button occurs. At extremely high accelerations of the This cannot always be guaranteed. In addition, the loads to be borne by the jack are reduced very high values, in which both the total mass of the Release button as well as that of the locking plate and the pawl come in yourself.

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 provides a fastener for seat belts created, even at extremely high acceleration values of 4000 g or more secured against unintentional opening is and no fundamental changes to the proven design according to the hook principle.

Gemäß der Erfindung ist der Sperrkörper in der Sperrstellung des Schwenkriegels blockiert, so daß das Sperrglied, welches den Schwenkriegel in seiner Verschlußstellung hält, bei einer Beschleunigung den Schwenkriegel nicht freigeben kann. Da der Sperrkörper auch bei extrem hohen Beschleunigungen in seiner Blockierstellung verbleibt, ist der Verschluß also unabhängig von zeitlichen Abläufen sicher verriegelt.According to the invention, the locking body is in the locked position of the pivot bolt blocked, so that the locking member which holds the swivel bolt in its locked position cannot release the swivel bolt during acceleration. Because the locking body even at extremely high accelerations remains in its blocking position, the closure is locked securely regardless of the schedule.

Bei einer ersten vorteilhaften Ausführungsform des Verschlusses ist der Sperrkörper wiederum durch eine parallel zu der Verschieberichtung des Sperrgliedes verschiebbare Blockierplatte 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 die Blockierplatte gesichert. Daraus ergibt sich, daß der Verschluß insgesamt gegen Beschleunigungen in jeder Richtung gesichert ist.In a first advantageous embodiment of the closure is the blocking body in turn by a parallel slidable to the direction of displacement of the locking member Blocking plate can be locked in its blocking position. Hence is the locking member on the one hand by the locking body against accelerations in the direction of actuation of the release button secured, and on the other hand, the locking body is in turn against accelerations across this direction through the Blocking plate secured. It follows that the closure overall against accelerations in every direction is secured.

Zum Lösen des Verschlusses muß bei dieser Ausführungsform erst die Blockierplatte 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 die Blockierplatte angeschlossen ist. Der Umlenkhebel, die Blockierplatte 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 closure in this embodiment only the blocking plate to be moved to the locking body to release, which in turn a shift of the Locking member allows to release the swing bolt. The required sequence of movements can easily be done by means of a two-armed bell crank pivotally mounted on the locking member reach, at the first end the release button attacks and its second end connected to the blocking plate is. The bell crank, the locking plate and the this attacking parts of the release button are against acceleration mass compensated in the actuation direction of the release button, so that they accelerate even at extremely high values stay relatively calm.

Die zweite vorteilhafte Ausführungsform des Verschlusses beruht auf demselben Prinzip wie die erste. Der Sperrkörper wird jedoch durch einen um den Wälzkörper drehbar gelagerten, zweiarmigen Blockierhebel in seiner Blockierstellung arretiert. Die Lösetaste greift vorzugsweise an dem ersten Arm des Blockierhebels an; der zweite Arm des Blockierhebels bildet eine Ausgleichsmasse, durch die die Masse der Lösetaste kompensiert wird. Bereits im Ruhezustand des Verschlusses ist das Sperrglied durch den Sperrkörper in der Sperrstellung blockiert, und dieser Zustand bleibt auch bei extremen Beschleunigungen in allen Richtungen erhalten, da alle am Blockiervorgang beteiligten Massen einander kompensieren.The second advantageous embodiment of the closure is based on the same principle as the first. The locking body is, however, rotatably mounted around the rolling element, two-armed blocking lever in its blocking position locked. The release button preferably engages the first Arm of the locking lever on; the second arm of the locking lever forms a balancing mass through which the mass of the release button is compensated. Already in the lock's idle state is the locking member through the locking body in the Locked position blocked, and this condition remains get extreme accelerations in all directions because all masses involved in the blocking process compensate each other.

Gemäß einer vorteilhaften Weiterbildung ist aber eine Überkompensation vorgesehen, durch die der Blockierhebel auch bei Beschleunigungen in ungewöhnlichen Richtungen sicher an einem Anschlag am Rahmen des Verschlusses gehalten wird. Diese Überkompensation wird durch einen zusätzlichen Massekörper bewirkt, der neben dem Blockierhebel drehbar auf dem Sperrkörper gelagert ist und mit dem ersten Arm des Blockierhebels auf dessen von der Lösetaste abewandter Seite dadurch gekoppelt ist, daß er durch eine Feder nachgiebig in Anlage an diesem ersten Arm gehalten wird.According to an advantageous development, however, overcompensation is provided by the blocking lever also when accelerating in unusual directions a stop on the frame of the closure is held. This overcompensation is caused by an additional mass body causes the rotatable next to the blocking lever on the Locking body is mounted and with the first arm of the Blocking lever on the side facing away from the release button is coupled in that it is resilient in by a spring Attachment to this first arm is held.

Weitere Merkmale und Vorteile zweier Ausführungsformen 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 nach der ersten Ausführungsform.
Fig. 2
eine schematische Seitenansicht dieses 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;
Fig. 5
den Verschluß im geöffneten Zustand bei vollständig eingedrückter Lösetaste.
Fig. 6
eine schematische Perspektivansicht der wesentlichen Funktionsteile des Verschlusses nach der zweiten Ausführungsform;
Fig. 7
eine schematische Seitenansicht diese Verschlusses im Zustand mit verriegelter Steckzunge und unbetätigter Lösetaste;
Fig. 8
denselben Verschluß bei beginnender Betätigung der Lösetaste;
Fig. 9
den Verschluß in der Endphase der Betätigung der Lösetaste; und
Fig. 10
den Verschluß im geöffneten Zustand bei vollständig eingedrückter Lösetaste.
Further features and advantages of two embodiments of the invention result from the following description and from the drawing, to which reference is made. The drawing shows:
Fig. 1
is a schematic perspective view of the essential functional parts of the closure according to the first embodiment.
Fig. 2
a schematic side view of this 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;
Fig. 5
the closure in the open state with the release button fully pressed.
Fig. 6
is a schematic perspective view of the essential functional parts of the closure according to the second embodiment;
Fig. 7
a schematic side view of this closure in the state with locked tongue and unactuated release button;
Fig. 8
same lock when the release button is pressed;
Fig. 9
the closure in the final phase of actuation of the release button; and
Fig. 10
the closure in the open state with the release button fully pressed.

Der Verschluß für Sicherheitsgurte nach der in den Fig. 1 bis 5 gezeigten Ausführung 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 according to that in FIG. 1 to 5 shown embodiment combines a conventional Tongue 10 with a fitting 12 on which a belt tensioner, a so-called lock tightener can attack. The closure comprises one connected to the fitting 12 load-bearing frame 14, which is bent in a U-shape in plan view is and between the legs of a swivel bar 16th is pivotally mounted. In the closed state (Fig. 2) the hook 16 engages with a hook 16a on one Locking edge 10a of the tongue 10. In two to each other and to the tongue 10 parallel guide slots 18 in the Legs of the frame 14, a locking plate 20 is slidable guided. A compression spring 22 is between the locking plate 20 and a support surface 16b supported on the pivot bolt 16 and applies an opening moment to the swivel bolt 16, but at the same time presses the locking plate 20 into one Locked position in which they stop for a hoisted Approach 16c on the side facing away from hook 16a of the pivot bolt 16 forms. 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.On the frame 14 is also a two-part release button 24a, 24b pivoted. The two parts 24a, 24b of the release button are pivotable about a common axis and on their free ends spread apart by spring force. Here is the part 24a of the release button on the adjacent edge 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.The locking plate 20 has one on each of its two sides protruding journal 26, on each of which a two-armed Deflection lever 28 pivotally mounted by means of an elongated hole 28a is. On the upper arm of the bell crank 28 is one Blocking plate 30 articulated. The blocking plate 30 is in two parallel guide slots 32 in the two legs of the frame 14 parallel to the locking plate 20th slidably mounted. By a compression spring 34 Blocking plate 30 in the opposite direction to that Lock plate 20 loaded 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 that is from End of the blocking plate 30 facing away from the deflection lever 28 via two locking balls 36, each in a trough 38 of the Lock plate 20 are stored. The blocking plate 30 prevents an escape of the locking balls 36 from the troughs 38, whereby the locking plate 20 is blocked in 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.Has on his arm facing away from the blocking plate 30 the bellcrank 28 has a shoulder 28b through an opening 40 protrudes in the part 24a of the release button and on the part 24b thereof is present. The mass distribution and the levers involved the part 24b of the release button, the pivot bolt 28 and the Blocking plate 30 are chosen so that these parts are opposite Accelerations in the actuation direction of the release button are mass compensated are. Even at extremely high accelerations in this direction these parts therefore remain relative to the Frame 14 of the closure is still. Hence they are Blocking balls 36 prevented from emerging from the troughs 38, whereby the locking plate 20 in its locked position is blocked and the pivot bolt 16 in its closed position backs up. When accelerating across the direction of actuation the release button, the locking balls 36 can also do not dodge because they are between the locking plate 20 and the Blocking plate 30 are included. The closure is therefore against accelerations of any size and in any direction secured.

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 lock is like a conventional one Swivel bolt lock actuates the release button in one direction, which corresponds to the insertion direction of the tongue 10. The part 24b of the release button first pushes the shoulder 28b of the bell crank 28 and pivots this, whereby the Blocking plate 30 against the force of the compression spring 34 in the guide slots 32 is moved until the locking balls 36 released. In this state, shown in Fig. 3 are the parts 24a and 24b of the release button together, so that now after the introductory first actuation stroke a second actuation stroke against the locking plate 20 Force of the compression spring 22 is shifted.

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 are now 36 pushed out of the recesses 38 so that the locking plate 20 can be pushed forward unhindered until the Swivel bolt 16 releases. This is now by the compression spring 22 pivoted clockwise, the hook 16a is released from the latching edge 10a of the tongue 10 and this can now be pulled out of the closure.

In den Figuren 6-10 sind diejenigen Elemente, die im wesentlichen mit der Ausführungsform nach den Figuren 1-5 übereinstimmen, mit um 100 erhöhten Bezugszahlen bezeichnet. Man erkennt wieder den lasttragenden Rahmen 114, zwischen dessen Schenkeln ein Schwenkriegel 116 schwenkbar gelagert ist. Im geschlossenen Zustand (Figur 7) greift der Schwenkriegel 116 mit einem Haken 116a an einer Rastkante 110a der Steckzunge 110 an. In der Schließstellung wird der Schwenkriegel 116 durch eine Sperrplatte 120 gehalten, die an ihrer Unterseite eine quer über ihre gesamte Breite verlaufende Mulde 138 aufweist. In diese Mulde greift eine langgestreckte Sperrwalze 136 ein, die sich quer durch die Schenkel des Rahmens 114 erstreckt und auf beiden Seiten übersteht; diese Sperrwalze 136 ist in zwei einander gegenüberliegenden Langlöchern 137 in den Schenkeln des Rahmens 114 verschiebbar gelagert. Diese Langlöcher 137 erstrecken sich senkrecht zur Verschiebungsrichtung der Sperrplatte 120.In Figures 6-10 are those elements that are essential correspond to the embodiment according to FIGS. 1-5, with reference numbers increased by 100. Man recognizes again the load-bearing frame 114, between its Legs a pivot bolt 116 is pivotally mounted. in the closed condition (Figure 7) engages the pivot bolt 116 with a hook 116a on a locking edge 110a of the tongue 110 at. The swivel bolt is in the closed position 116 held by a locking plate 120 on its underside a trough running across its entire width 138. An elongated one reaches into this hollow Locking roller 136, which extends across the legs of the Frame 114 extends and protrudes on both sides; this Lock roller 136 is in two opposing elongated holes 137 displaceable in the legs of the frame 114 stored. These elongated holes 137 extend perpendicular to the Direction of displacement of the lock plate 120.

Auf jedem Ende der Sperrwalze 136 ist ein zweiarmiger Blockierhebel 130 mittels Lagerbuchsen 139 drehbar gelagert. Der zweiarmige Blockierhebel 130 weist einen ersten Arm 130a auf, der durch einen Betätigungsfortsatz an der Lösetaste 124b betätigbar ist. Der zweite Arm 130b des Blockierhebels 130 bildet eine Ausgleichsmasse, durch welche die Summe der Massen der Lösetaste 124b und des ersten Armes 130a kompensiert wird. Bei dem in Figur 6 gezeigten Ruhezustand ist der zweite Arm 130b des Blockierhebels 30 mit seiner Anschlagfläche 129a in Anlage an einem Anschlag 129 des Rahmens 114. There is a two-armed on each end of the lock roller 136 Blocking lever 130 is rotatably supported by means of bearing bushes 139. The two-armed blocking lever 130 has a first arm 130a on by an actuation extension on the release button 124b can be actuated. The second arm 130b of the lock lever 130 forms a balancing mass, through which the sum of the Masses of the release button 124b and the first arm 130a compensated becomes. In the idle state shown in FIG second arm 130b of the blocking lever 30 with its stop surface 129a in contact with a stop 129 of the frame 114.

Auf jedem Ende der Sperrwalze 136 ist ferner neben dem Blockierhebel 139 ein zusätzlicher Massekörper 140 drehbar gelagert. Jeder dieser Massekörper besteht aus zwei parallelen Wangen 140a, 140b, die beiderseits des ersten Armes 130a des betreffenden Blockierhebels 130 angeordnet sind und durch eine Schenkelfeder 135 mit diesem auf seiner von der Lösetaste 124b abgewandten Seite in Anlage gehalten werden.On each end of the lock roller 136 is also next to the Blocking lever 139 an additional mass body 140 rotatable stored. Each of these mass bodies consists of two parallel ones Cheeks 140a, 140b on either side of the first arm 130a of the respective blocking lever 130 are arranged and through a leg spring 135 with this on its from the Release button 124b facing away from the system.

Die Funktionsweise dieses Verschlusses ist ähnlich wie bei der zuvor beschriebenen Ausführungsform und geht aus den Figuren 7-10 hervor.The function of this closure is similar to that of the embodiment described above and goes from the Figures 7-10 emerge.

Bei Betätigung der Lösetaste 124b (Figuren 7 und 8) wird der Blockierhebel 130 verschwenkt, wobei sich die Anschlagfläche 129a vom Anschlag 129 löst. Sobald die Anschlagfläche 129a über das Lot durch die Achse der Sperrwalze 136 auf die Steckzunge 110 hinaus verdreht worden ist, wirkt auf die Sperrwalze 136 ein Moment, welches bestrebt ist, sie aus der Mulde 138 heraus in Richtung zur Steckzunge 110 hin zu verlagern. Bei weiterer Drehung von der in Figur 8 zur in Figur 9 gezeigten Stellung bewegt sich die Sperrwalze 136 zum unteren Ende der Langlöcher 137, so daß sie nun vollständig aus der Mulde 138 ausgetreten ist und die Sperrplatte 120 freigibt. Bei weiterer Betätigung der Lösetaste 124b wird nun deren Teil 124a erfaßt, wodurch die Sperrplatte 120 unmittelbar verschoben wird und so den Schwenkriegel 116 freigibt, der sich nun in die in Figur 10 gezeigte Öffnungsstellung bewegt.When the release button 124b (FIGS. 7 and 8) is actuated, the Blocking lever 130 pivots, the stop surface 129a releases from stop 129. As soon as the stop surface 129a over the solder through the axis of the locking roller 136 on the Tongue 110 has been twisted, acts on the Ratchet roller 136 a moment which strives to get it out of the To shift trough 138 out towards tongue 110. Upon further rotation from that in Figure 8 to in Figure 9 position shown, the locking roller 136 moves to the lower End of the elongated holes 137 so that they are now complete has emerged from the depression 138 and the locking plate 120 releases. If you press the release button 124b again now their part 124a is detected, whereby the locking plate 120 immediately is displaced and thus releases the swivel bolt 116, the now in the open position shown in Figure 10 emotional.

Bei dem in Figuren 6 und 7 gezeigten Ruhezustand mit eingeschobener und gesicherter Steckzunge 110 sind alle am Öffnungsvorgang beteiligten Massen für jede Beschleunigungsrichtung kompensiert. Eine Überkompensation wird durch die zusätzlichen Massenkörper 140 erreicht, die bei Beschleunigung des Verschlusses in Öffnungsrichtung der Lösetaste 124b an den ersten Arm 130a des Blockierhebels 130 angedrückt werden und somit den Druck der Anschlagfläche 129a am Anschlag 129 verstärken. Auf diese Weise wird die Sicherheit auch gegen Beschleunigungen in unvorhergesehener Richtung, wie bei einem komplexen Unfallablauf, erhöht. Die zusätzlichen Massekörper 140 sind jedoch bei Beschleunigung des Verschlusses entgegen der Betätigungsrichtung der Lösetaste 124b von dem Blockierhebel 130 abgekoppelt, da dann die Schenkelfeder 138 nachgibt.In the idle state shown in FIGS. 6 and 7 with inserted and secured tongue 110 are all at Opening process involved masses for each direction of acceleration compensated. Overcompensation is caused by the additional mass body 140 reached when accelerating the lock in the opening direction of the release button 124b pressed against the first arm 130a of the blocking lever 130 and thus the pressure of the stop surface 129a Reinforce stop 129. This way security also against accelerations in unforeseen directions, as in a complex accident process. The additional However, mass bodies 140 are at acceleration of the Lock against the direction of actuation of the release button 124b decoupled from the blocking lever 130, since then the Leg spring 138 yields.

Claims (15)

  1. A buckle for safety belts, comprising a pivotal latch (16) mounted in a load-bearing frame (14) and engaging in its locking position a catch edge of an insert tongue (10), a locking member (20) mounted on the frame (14) for sliding movement transversely to the direction of pivoting of the pivotal latch (16) between an open position, in which it releases the pivotal latch, and a locking position, in which it arrests the pivotal latch in its engagement position, and a release button (24a, 24b) also mounted on the frame, whose actuation causes displacement of the locking member (20) into the open position, the locking member (20) being for its part adapted to be arrested in the locking position by at least one locking body (36) which is able to be moved transversely to the direction of displacement of the locking member (20) between an arrest position and a release position,
    characterized in that the locking body (36) is arrested in the locking position of the pivotal latch (16).
  2. The buckle as claimed in claim 1, characterized in that the locking body (36) is constituted by a roller body which engages into a recess (38) in the locking member (20).
  3. The buckle as claimed in claim 1 or 2, characterized in that the locking body (36) is arranged to be held in its arrest position by means of an arrest plate (30) adapted to shift in parallelism to the direction of displacement of the locking member.
  4. The buckle as claimed in claim 3, characterized in that the release button (24a, 24b) and the arrest plate (30) are adapted to respectively engage at different arms of at least one two-armed, pivotally mounted bell crank (28).
  5. The buckle as claimed in claim 4, characterized in that the bell crank (28) is pivotally mounted on the locking member (20).
  6. The buckle as claimed in claim 5, characterized in that the release button (24a, 24b) is adapted to firstly engage the bell crank (28) in a first actuating stroke, and then to engage the locking member (20) in a further actuating stroke after displacement of the arrest plate (30) into a position releasing the locking body (36).
  7. The buckle as claimed in claim 4 or 5, characterized in that the bell crank (28) is mounted on a trunnion (26) at the locking member (20) by means of a slot (28a).
  8. The buckle as claimed in any of the preceding claims, characterized in that the bell crank (28), the arrest plate (30) and the parts of the release button (24b) engaging thereon are inertial mass-compensated as regards acceleration in the actuation direction of the release button.
  9. The buckle as claimed in claim 2, characterized in that the locking body (136) is able to be held in an arrest position thereof by a two-armed arrest lever (130) mounted for rotation about the roller body.
  10. The buckle as claimed in claim 9, characterized in that the first arm of the arrest lever (130) is engaged by the release button (124) and the second arm constitutes a compensating inertial mass, by which the mass of the release button is balanced.
  11. The buckle as claimed in claim 10, characterized in that the roller body (136) is guided on the frame (114) in at least one slot extending perpendicularly to the direction of displacement of the locking member (120), and is able to be shifted together with the arrest lever (130) between the ends of the slot.
  12. The buckle as claimed in claim 11, characterized in that the arrest lever (130) is kept in an arrest position at the end of the slot adjacent to the locking member (120) by dint of engagement on an abutment (129) of the frame, and may be pivotally moved away from the abutment (129) under the action of the release button on its first arm into a release position at the other end of the slot.
  13. The buckle as claimed in any of claims 10 to 12,
    characterized in that an inertial mass (140), which is able to turn about the roller body (136), is held by a resilient force in abutment on the side of the first arm of the arrest lever (130) which is remote from the release button.
  14. The buckle as claimed in any of the preceding claims 9 to 13, characterized in that the locking body (136) is in the form of an elongated locking roller which extends through the frame (114) with both its ends extending past same and in that on each end of the locking roller (136) an arrest lever (130) is arranged.
  15. The buckle as claimed in any of the preceding claims 4 to 8, characterized in that on either side of the frame (14) a respective locking body (36) and a bell crank (28) are arranged.
EP95927723A 1994-07-29 1995-07-25 Safety belt buckle Expired - Lifetime EP0721304B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4427011A DE4427011A1 (en) 1994-07-29 1994-07-29 Seat belt buckle
DE4427011 1994-07-29
PCT/EP1995/002945 WO1996003896A1 (en) 1994-07-29 1995-07-25 Safety belt buckle

Publications (2)

Publication Number Publication Date
EP0721304A1 EP0721304A1 (en) 1996-07-17
EP0721304B1 true EP0721304B1 (en) 2000-09-13

Family

ID=6524518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95927723A Expired - Lifetime EP0721304B1 (en) 1994-07-29 1995-07-25 Safety belt buckle

Country Status (10)

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US (1) US5915633A (en)
EP (1) EP0721304B1 (en)
JP (1) JP2823360B2 (en)
KR (1) KR0180713B1 (en)
CN (1) CN1131381A (en)
CZ (1) CZ92196A3 (en)
DE (2) DE4427011A1 (en)
ES (1) ES2093588T3 (en)
PL (1) PL313705A1 (en)
WO (1) WO1996003896A1 (en)

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JP5688256B2 (en) * 2009-10-28 2015-03-25 芦森工業株式会社 Buckle device
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US8516667B2 (en) 2010-05-19 2013-08-27 GM Global Technology Operations LLC Seat belt buckle
JP5385214B2 (en) * 2010-06-09 2014-01-08 オートリブ ディベロップメント エービー Seat belt buckle device
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CN106821649B (en) * 2017-04-17 2019-03-12 温州远协电子科技有限公司 A kind of psychiatric department safety restraint belt locking structure
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CN109999458B (en) * 2019-04-24 2020-10-23 重庆第二师范学院 Two-person three-foot training auxiliary equipment based on student exercise

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Also Published As

Publication number Publication date
CZ92196A3 (en) 1996-09-11
ES2093588T3 (en) 2001-01-16
JPH08509902A (en) 1996-10-22
KR960704477A (en) 1996-10-09
PL313705A1 (en) 1996-07-22
DE59508715D1 (en) 2000-10-19
JP2823360B2 (en) 1998-11-11
CN1131381A (en) 1996-09-18
WO1996003896A1 (en) 1996-02-15
DE4427011A1 (en) 1996-02-01
KR0180713B1 (en) 1999-02-01
ES2093588T1 (en) 1997-01-01
EP0721304A1 (en) 1996-07-17
US5915633A (en) 1999-06-29

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