EP0404089B1 - Buckle for seat belt system - Google Patents

Buckle for seat belt system Download PDF

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Publication number
EP0404089B1
EP0404089B1 EP90111622A EP90111622A EP0404089B1 EP 0404089 B1 EP0404089 B1 EP 0404089B1 EP 90111622 A EP90111622 A EP 90111622A EP 90111622 A EP90111622 A EP 90111622A EP 0404089 B1 EP0404089 B1 EP 0404089B1
Authority
EP
European Patent Office
Prior art keywords
locking member
locking
buckle
tongue
journals
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
EP90111622A
Other languages
German (de)
French (fr)
Other versions
EP0404089A1 (en
Inventor
Reiner Van Riesen
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.)
Van Riesen GmbH and Co KG
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Van Riesen and Co
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Publication date
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Publication of EP0404089A1 publication Critical patent/EP0404089A1/en
Application granted granted Critical
Publication of EP0404089B1 publication Critical patent/EP0404089B1/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
    • A44B11/2503—Safety buckles
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2523—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and in the same direction as the fastening action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/4566—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member
    • Y10T24/45665—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 is based on a belt buckle for webbing restraint systems, comprising a locking mechanism and at least one webbing end piece that can be inserted into it and that can be ejected as a result of a push of a button, the end piece having a tongue that can be locked with the mechanism with the aid of a control member on the end piece, and wherein the mechanism consists of a U- Shaped metal frame with a locking member mounted in the lateral recesses for locking the tongue of the end piece, a spring-loaded, tongue-actuating ejector, a spring-loaded locking member support for securing at least the latching position of the locking member and a spring-loaded release button.
  • EP-A-0 252 403 describes a belt buckle of the aforementioned type.
  • the locking member is relatively complicated and has a considerable Mass on, so that the locking member must be manufactured time-consuming and at high cost and also relatively high friction forces must be overcome when it is actuated.
  • the locking member is a relatively large component and has an obliquely bent down latch for locking with the tongue part of the webbing end piece, which must be bent precisely to ensure the function of the buckle under all circumstances.
  • the mass of this locking member is relatively high, so that considerable operating forces must be applied in connection with the considerable frictional resistances when operating the lock.
  • a comparable belt buckle is disclosed in GB-A-2 199 613.
  • the locking member of this lock is a flat, plate-shaped component, the disadvantages listed above are still partially present, because the locking and releasing devices of the locking member are still of complex construction.
  • the object of the invention is to improve a buckle of the type mentioned above in that the locking member, its storage and its actuation are further simplified in order to manufacture the buckle more cost-effectively and easily, and to operate it more easily.
  • the locking member is a substantially flat plate-shaped component in that the lateral recesses in the metal frame for holding and guiding the pins of the locking member consist of elongated holes which are in the extend substantially parallel to the direction of movement of the tongue in the frame and are dimensioned such that the pin in Movement direction of the tongue movable, but perpendicular to it and at least in the locking position of the locking member are guided essentially free of play, that the web part of the U-shaped metal frame has a stop for fixing the locking position of the locking member, that the front upper region of the locking member has a stop for unlocking the locking member by Trigger button forms and that the locking member support is arranged behind the locking member above the ejector and is movable at least substantially parallel to the direction of movement of the ejector.
  • a simplified locking member can be used. It can be produced by a single punching process and does not require any bending operations for further shaping. Its resulting smaller size leads to a smaller mass with the advantage that this link made of metal now requires less actuation forces. The latter also because it is exposed to smaller frictional forces when it is closed and opened, especially since, according to the invention, it is in principle stored in the elongated holes with a relatively large amount of play.
  • a secure locking position of the locking member is achieved in any case, because on the one hand it is not movable in the transverse direction to the longitudinal extension of the lateral elongated holes, at least in the locking position, and on the other hand it is supported at the bottom on the metal frame of the buckle.
  • the rear, correspondingly well-sprung locking member support presses on the back of the locking member in order to prevent this link from falling out of its locked position.
  • the locking element is opened by pressing the release button directly pushed back so that the locking member moves back in the two elongated holes and thereby comes to an inclined position, such that it retracts from the tongue of the belt end piece so that it is unlocked.
  • the non-locking position of the substantially rectangular locking member is secured by a backward inclined inclined position thereof, which is achieved on the one hand by a rear raised contact of the inclined locking member on the locking member support and on the other hand by a lower front contact of the locking member on a housing part of the lock in connection with the upper one System of the locking pin is secured to the elongated holes.
  • the belt buckle mainly consists of a lock housing 1 with one located therein Closing mechanism and two webbing end pieces 2 and 3. Of the one end piece 2 only the tongue 4, which is locked with its locking hole 5 with the mechanism, can be seen, while the other end piece 3 has a control element 6, which also with the Mechanism engaged. A single strap end piece can also be used, which then also has the control element 6. It is also possible to use more than two end pieces.
  • the mechanism mentioned comprises a U-shaped metal frame 7, a locking member 8 mounted thereon for locking the tongue 4, a compression spring-loaded, common ejector 9 for the unlocked tongue, a locking member support 10 which acts on the rear of the locking member 8, and a compression spring-loaded release button 11, which engages the locking member at the top and is preferably movable parallel to the direction of movement of the tongue 4.
  • a helical compression spring 12, 13 and 14 is preferably used for parts 9, 10 and 11.
  • the web part of the metal frame 7 has a rear extension 15 with a hole 16, to which a webbing (not shown) is fastened in a known manner.
  • the two opposite legs 17 of the U-shaped metal frame 7 each have a rectangular slot 18 for holding and guiding the locking member 8, which are arranged such that the two slots parallel to the direction of movement of the tongue 4 in the mechanism extend and are each provided in such an area of the leg 17, which is approximately above the Locking hole 5 of the tongue 4 is when it is snapped into the mechanism.
  • the plate-shaped and essentially rectangular blocking member 8 (FIG. 4) has a pin 19 on each of its short sides, the pins being held and guided in the elongated holes 18, as can be seen from FIGS. 1 to 3.
  • the locking member also has a lower central locking lug 20 which engages in the locking hole 5 of the tongue 4, and an upper stop 21 which serves to unlock the mechanism by the release button 11.
  • the locking member 8 is preferably flat, but can also be slightly curved (i.e. essentially flat), for example in its upper region, and consists e.g. made of metal.
  • the width of the pegs 19 corresponds essentially to the height of the elongated holes 18, so that the locking member 8, when it is vertical, as shown in FIGS. 2 and 4, cannot move in the vertical direction, so that it is fixed.
  • the pins can move in the longitudinal direction of the elongated holes, because of the many times longer length of the elongated holes with respect to the thickness of the pins, so that the locking member according to FIGS. 1 and 3 is in an inclined position, which is the disengaged position of the locking member. can take.
  • the metal frame 7 has in its web part 22 connecting the two legs 17 a conventional, elongated guide recess 23 for receiving and axially guiding the ejector 9 of known construction, which in conjunction with the compression spring 12 ejects the tongue 4 of the end piece 2 when the locking member 8 is unlocked.
  • the ejector 9 is supported also the locking member 8 from when the latter is unlocked ( Figures 1 and 3).
  • the front end of the recess 23 formed as a punched hole also serves as a stop 24 for the locking lug 20 of the locking member when the latter is engaged (FIG. 2), so that the locking position of the locking member is thereby also secured.
  • the locking member support 10 is arranged, at least substantially parallel, that is to say possibly also axially movable exactly parallel to the direction of movement of the ejector, so that the support 10 moves forward when the tongue 4 is locked due to the compression spring 13 and moved back when the trigger button 11 is pressed according to the arrow 25.
  • the support 10 engages at the rear approximately centrally on the locking member 8 and thus causes a locking moment on the locking member, since this is temporarily fixed in the region of its locking lug and during its unlocking time on an additional part 1a of the housing 1.
  • Parts 1 and 1a are connected to one another in a positionally secure manner by means of a customary latching connection 26.
  • the front end of the locking member support has a rounding 27 as an improved working surface for easier movement of the locking member.
  • the locking member support 10 has two lateral arms 28 and 29, with which it is guided in elongated recesses 30 of the housing part 1a indicated by dashed lines, as is clear to the person skilled in the art without further explanation.
  • the backward inclined position of the locking member 8, which represents an unlocking position, is secured in that the locking member on the one hand back is supported by the support 10 on an elevated area and on the other hand by a lower front contact on the housing part 1a and on the ejector 9 and by an upper contact of the locking pin 19 on the upper edge of the elongated holes 18.
  • the unlocking position of the locking member can also be ensured in that the side elongated holes 18 for holding and guiding the pins of the locking member have such a length that instead of the rear locking member support 10, the rear limitation of the elongated holes on the one hand each has a rear stop for the pins Form inclined position of the disengaged locking member 8, and that the inclined position is given on the other hand by a front lower contact on the housing part 1a and on the ejector 9 and in connection with the upper contact of the locking member pins on the slot edges.
  • the elongated holes 18 in the legs 17 of the metal frame 7 are preferably rectangular. However, they can also have a shape that widens somewhat towards the rear. It is also possible that the elongated holes 18 do not extend exactly parallel to the direction of movement of the tongue 4 of the corresponding webbing end piece 2, but instead have a somewhat inclined direction. However, it must be ensured that the locking member 8 can be moved into such an inclined position from which it can be brought securely into its locking position.
  • the buckle described works in the following way.
  • the two, previously put together webbing End pieces 2, 3 are inserted into the rest of the lock, the tongue 4 initially coming into contact solely with the ejector 9 and pushing it back against the spring force 12.
  • the locking member 8, supported by the locking member support 10, falls on the tongue 4.
  • the control member 6 of the end piece 3 comes to bear against the locking lug 20 of the locking member 8 and causes the locking member 8 to further support by the support 10, latches into the hole 23 of the frame 7 and comes to rest against its stop 24.
  • the locking member 8 has thus moved from its inclined position according to FIG. 1 into its locking position according to FIG. 2.
  • the locking member cannot automatically get out of this latter position because it is prevented from doing so in connection with the locking member support 10 by its pins 19, which abut the upper edge of the elongated holes 18. If the release button 11 is now pressed in the direction of the arrow 25 (FIG. 3), the locking member 8 is pushed backwards, the support 10 also being moved rearward against the force of the spring 13, as a result of which the locking lug 20 of the locking member 8 moves forward moved up and thus the tongue 4 of the corresponding end piece releases again. The ejector 9 then moves the tongue 4 out of the lock mechanism and itself reaches its starting position shown in FIGS. 1 and 3, in which the locking member 8 is also supported on the ejector 9.

Landscapes

  • Buckles (AREA)
  • Automotive Seat Belt Assembly (AREA)

Description

Die Erfindung geht aus von einem Gurtschloß für Gurtbandrückhaltesysteme, umfassend einen Schließmechanismus und wenigstens ein in diesen einsteckbares, infolge Tastendruck auswerfbares Gurtband-Endstück, wobei das Endstück eine mit dem Mechanismus mit Hilfe eines endstückseitigen Steuerorgans verriegelbare Zunge aufweist und wobei der Mechanismus aus einem U-förmigen Metallrahmen mit einem mittels Zapfen in dessen seitlichen Ausnehmungen gelagerten Sperrglied für die Verriegelung der Zunge des Endstückes, einem federbelasteten, die Zunge betätigenden Auswerfer, einer federbelasteten Sperrgliedstütze zur Sicherung wenigstens der Raststellung des Sperrgliedes und aus einer federbelasteten Auslösetaste besteht.The invention is based on a belt buckle for webbing restraint systems, comprising a locking mechanism and at least one webbing end piece that can be inserted into it and that can be ejected as a result of a push of a button, the end piece having a tongue that can be locked with the mechanism with the aid of a control member on the end piece, and wherein the mechanism consists of a U- Shaped metal frame with a locking member mounted in the lateral recesses for locking the tongue of the end piece, a spring-loaded, tongue-actuating ejector, a spring-loaded locking member support for securing at least the latching position of the locking member and a spring-loaded release button.

In der EP-A-0 252 403 ist ein Gurtschloß der vorgenannten Art beschrieben. Bei diesem Schloß ist das Sperrglied relativ kompliziert aufgebaut und weist eine beträchtliche Masse auf, so daß das Sperrglied zeitaufwendig und mit hohen Kosten gefertigt werden muß und ferner bei seiner Betätigung relativ hohe Reibungskräfte überwunden werden müssen. Das Sperrglied ist ein relativ großes Bauteil und besitzt eine schräg nach unten abgebogene Rastnase zur Verriegelung mit dem Zungenteil des Gurtband-Endstückes, die genau gebogen werden muß, um die Funktion des Gurtschlosses unter allen Umständen sicherzustellen. Außerdem ist die Masse dieses Sperrgliedes relativ hoch, so daß in Verbindung mit den beträchtlichen Reibwiderständen bei der Schloßbedienung erhebliche Betätigungskräfte aufgebracht werden müssen.EP-A-0 252 403 describes a belt buckle of the aforementioned type. In this lock, the locking member is relatively complicated and has a considerable Mass on, so that the locking member must be manufactured time-consuming and at high cost and also relatively high friction forces must be overcome when it is actuated. The locking member is a relatively large component and has an obliquely bent down latch for locking with the tongue part of the webbing end piece, which must be bent precisely to ensure the function of the buckle under all circumstances. In addition, the mass of this locking member is relatively high, so that considerable operating forces must be applied in connection with the considerable frictional resistances when operating the lock.

In der GB-A-2 199 613 ist ein vergleichbares Gurtschloß offenbart. Obwohl das Sperrglied dieses Schlosses ein ebenes, plättchenförmiges Bauteil ist, sind die vorteshend aufgeführten Nachteile zum Teil trotzdem noch, vorhanden, weil die Verriegelungs- und Lösungseinrichtungen des Sperrglieds immer noch kompliziert aufgebaut sind.A comparable belt buckle is disclosed in GB-A-2 199 613. Although the locking member of this lock is a flat, plate-shaped component, the disadvantages listed above are still partially present, because the locking and releasing devices of the locking member are still of complex construction.

Die Aufgabe der Erfindung besteht in der Verbesserung eines Gurtschlosses der einleitend angeführten Art dahingehend, daß das Sperrglied, seine Lagerung und seine Betätigung weiter vereinfacht sind, um das Gurtschloß kostengünstiger und einfacher herstellen sowie leichter bedienen zu können.The object of the invention is to improve a buckle of the type mentioned above in that the locking member, its storage and its actuation are further simplified in order to manufacture the buckle more cost-effectively and easily, and to operate it more easily.

Die Lösung dieser Aufgabe geht von dem einleitend angeführten Gurtschloß aus und kennzeichnet weiter dadurch, daß das Sperrglied ein im wesentlichen ebenes plättchenförmiges Bauteil ist, daß die seitlichen Ausnehmungen in dem Metallrahmen für die Halterung und Führung der Zapfen des Sperrgliedes aus Langlöchern bestehen, die sich im wesentlichen parallel zur Bewegungsrichtung der Zunge im Rahmen erstrecken und derart bemessen sind, daß die Zapfen in Bewegungsrichtung der Zunge beweglich, jedoch senkrecht dazu und wenigstens in Verriegelungsposition des Sperrgliedes im wesentlichen spielfrei geführt sind, daß der Stegteil des U-förmigen Metallrahmens einen Anschlag zur Fixierung der Raststellung des Sperrgliedes aufweist, daß der vordere Oberbereich des Sperrgliedes einen Anschlag zwecks Sperrgliedentriegelung durch die Auslösetaste bildet und daß die Sperrgliedstütze hinter dem Sperrglied oberhalb des Auswerfers angeordnet und zumindest im wesentlichen parallel zur Bewegungsrichtung des Auswerfers beweglich ist.The solution to this problem is based on the above-mentioned belt buckle and further characterized in that the locking member is a substantially flat plate-shaped component in that the lateral recesses in the metal frame for holding and guiding the pins of the locking member consist of elongated holes which are in the extend substantially parallel to the direction of movement of the tongue in the frame and are dimensioned such that the pin in Movement direction of the tongue movable, but perpendicular to it and at least in the locking position of the locking member are guided essentially free of play, that the web part of the U-shaped metal frame has a stop for fixing the locking position of the locking member, that the front upper region of the locking member has a stop for unlocking the locking member by Trigger button forms and that the locking member support is arranged behind the locking member above the ejector and is movable at least substantially parallel to the direction of movement of the ejector.

Durch diese Lösung kann ein vereinfachtes Sperrglied verwendet werden. Es ist durch einen einzigen Stanzvorgang herstellbar und benötigt keinerlei Biegearbeitsgänge zur weiteren Formgebung. Seine dadurch bedingte kleinere Baugröße führt zu einer kleineren Masse mit dem Vorteil, daß dieses aus Metall bestehende Glied nun weniger Betätigungskräfte erfordert. Letzteres auch deshalb, weil es bei seiner Schließ- und Öffnungsbetätigung kleineren Reibungskräften ausgesetzt ist, zumal es erfindungsgemäß im Prinzip mit relativ großem Spiel in den Langlöchern gelagert ist. Jedoch wird in jedem Falle eine sichere Raststellung des Sperrgliedes erreicht, weil es einerseits in Querrichtung zur Längserstreckung der seitlichen Langlöcher, zumindest in Rastposition, nicht beweglich ist und sich andererseits unten am Metallrahmen des Gurtschlosses abstützt. Die rückwärtige, entsprechend gut abgefederte Sperrgliedstütze drückt auf die Rückseite des Sperrgliedes, um ein Herausfallen dieses Gliedes aus seiner Raststellung zu vermeiden. Zum Öffnen des Gurtschlosses wird das Sperrglied oben durch die Auslösetaste direkt zurückgedrückt, so daß sich das Sperrglied in den beiden Langlöchern zurückbewegt und dabei in eine Schräglage kommt, derart, daß es sich aus der Zunge des Gurtband-Endstückes zurückzieht, so daß dieses entriegelt ist.With this solution, a simplified locking member can be used. It can be produced by a single punching process and does not require any bending operations for further shaping. Its resulting smaller size leads to a smaller mass with the advantage that this link made of metal now requires less actuation forces. The latter also because it is exposed to smaller frictional forces when it is closed and opened, especially since, according to the invention, it is in principle stored in the elongated holes with a relatively large amount of play. However, a secure locking position of the locking member is achieved in any case, because on the one hand it is not movable in the transverse direction to the longitudinal extension of the lateral elongated holes, at least in the locking position, and on the other hand it is supported at the bottom on the metal frame of the buckle. The rear, correspondingly well-sprung locking member support presses on the back of the locking member in order to prevent this link from falling out of its locked position. To open the belt buckle, the locking element is opened by pressing the release button directly pushed back so that the locking member moves back in the two elongated holes and thereby comes to an inclined position, such that it retracts from the tongue of the belt end piece so that it is unlocked.

Die Nichtverriegelungsstellung des im wesentlichen rechteckig ausgebildeten Sperrgliedes ist durch eine nach hinten geneigte Schräglage desselben gesichert, die einerseits durch eine hintere erhöhte Anlage des geneigten Sperrgliedes an der Sperrgliedstütze und andererseits durch eine vordere untere Anlage des Sperrgliedes an einem Gehäuseteil des Schlosses in Verbindung mit der oberen Anlage der Sperrgliedzapfen an den Langlöchern gesichert ist.The non-locking position of the substantially rectangular locking member is secured by a backward inclined inclined position thereof, which is achieved on the one hand by a rear raised contact of the inclined locking member on the locking member support and on the other hand by a lower front contact of the locking member on a housing part of the lock in connection with the upper one System of the locking pin is secured to the elongated holes.

Die Erfindung ist nachstehend anhand eines in den anliegenden Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

  • Figuren 1 bis 3 jeweils Mittellängsschnitte durch das Ausführungsbeispiel, und zwar beim Einführen von Gurtband-Endstücken, nach Verriegelung der Endstücke und beim Entriegeln der Endstücke, wobei letztere schon ausgeworfen sind,
  • Figur 4 einen vereinfachten Teilschnitt nach der Linie IV-IV in Figur 2,
  • Figur 5 eine Aufsicht auf ein Einzelteil des Ausführungsbeispieles.
The invention is explained below with reference to an embodiment shown in the accompanying drawings. Show it:
  • FIGS. 1 to 3 each show longitudinal longitudinal sections through the exemplary embodiment, namely when inserting webbing end pieces, after locking the end pieces and when unlocking the end pieces, the latter already being ejected,
  • FIG. 4 shows a simplified partial section along the line IV-IV in FIG. 2,
  • Figure 5 is a plan view of an individual part of the embodiment.

Nach den Figuren 1 bis 3 besteht das Gurtschloß hauptsächlich aus einem Schloßgehäuse 1 mit einem darin befindlichen Schließmechanismus und aus zwei Gurtband-Endstücken 2 und 3. Von dem einen Endstück 2 ist nur die Zunge 4, die mit ihrem Verriegelungsloch 5 mit dem Mechanismus verriegelt wird, zu sehen, während das andere Endstück 3 ein Steuerorgan 6 aufweist, das ebenfalls mit dem Mechanismus in Eingriff gelangt. Es kann auch ein einziges Gurtband-Endstück verwendet werden, das dann auch das Steuerorgan 6 aufweist. Auch ist es möglich, mehr als zwei Endstücke zu verwenden.According to Figures 1 to 3, the belt buckle mainly consists of a lock housing 1 with one located therein Closing mechanism and two webbing end pieces 2 and 3. Of the one end piece 2 only the tongue 4, which is locked with its locking hole 5 with the mechanism, can be seen, while the other end piece 3 has a control element 6, which also with the Mechanism engaged. A single strap end piece can also be used, which then also has the control element 6. It is also possible to use more than two end pieces.

Der erwähnte Mechanismus umfaßt einen U-förmigen Metallrahmen 7, ein daran gelagertes Sperrglied 8 für die Verriegelung der Zunge 4, einen druckfederbelasteten, üblichen Auswerfer 9 für die entriegelte Zunge, eine Sperrgliedstütze 10, die rückwärtig an dem Sperrglied 8 angreift, und eine druckfederbelastete Auslösetaste 11, die oben am Sperrglied angreift und vorzugsweise parallel zur Bewegungsrichtung der Zunge 4 bewegbar ist. Für die Teile 9, 10 und 11 wird vorzugsweise eine wendelförmige Druckfeder 12, 13 und 14 verwendet. Der Stegteil des Metallrahmens 7 besitzt einen hinteren Fortsatz 15 mit einem Loch 16, woran in bekannter Weise ein (nicht gezeigtes) Gurtband befestigt wird.The mechanism mentioned comprises a U-shaped metal frame 7, a locking member 8 mounted thereon for locking the tongue 4, a compression spring-loaded, common ejector 9 for the unlocked tongue, a locking member support 10 which acts on the rear of the locking member 8, and a compression spring-loaded release button 11, which engages the locking member at the top and is preferably movable parallel to the direction of movement of the tongue 4. A helical compression spring 12, 13 and 14 is preferably used for parts 9, 10 and 11. The web part of the metal frame 7 has a rear extension 15 with a hole 16, to which a webbing (not shown) is fastened in a known manner.

Die beiden sich gegenüberliegenden Schenkel 17 des U-förmigen Metallrahmens 7 (Figur 4) weisen je ein rechteckiges Langloch 18 zur Halterung und Führung des Sperrgliedes 8 auf, die derart angeordnet sind, daß sich die beiden Langlöcher parallel zur Bewegungsrichtung der Zunge 4 in dem Mechanismus erstrecken und je in einem solchen Bereich der Schenkel 17 vorgesehen sind, der etwa über dem Verriegelungsloch 5 der Zunge 4 liegt, wenn diese in dem Mechanismus eingerastet ist.The two opposite legs 17 of the U-shaped metal frame 7 (Figure 4) each have a rectangular slot 18 for holding and guiding the locking member 8, which are arranged such that the two slots parallel to the direction of movement of the tongue 4 in the mechanism extend and are each provided in such an area of the leg 17, which is approximately above the Locking hole 5 of the tongue 4 is when it is snapped into the mechanism.

Das plättchenförmige und im wesentlichen rechteckig ausgebildete Sperrglied 8 (Figur 4) weist an seinen kurzen Seiten je einen Zapfen 19 auf, wobei die Zapfen in den Langlöchern 18 gehaltert und geführt sind, wie aus den Figuren 1 bis 3 zu erkennen ist. Das Sperrglied hat weiter eine untere mittige Sperrnase 20, die in das Verriegelungsloch 5 der Zunge 4 eingreift, und einen oberen Anschlag 21, der zur Entriegelung des Mechanismus durch die Auslösetaste 11 dient. Das Sperrglied 8 ist vorzugsweise eben ausgebildet, kann aber auch leicht gekrümmt (das heißt im wesentlichen eben) sein, beispielsweise in seinem Oberbereich,und besteht z.B. aus Metall.The plate-shaped and essentially rectangular blocking member 8 (FIG. 4) has a pin 19 on each of its short sides, the pins being held and guided in the elongated holes 18, as can be seen from FIGS. 1 to 3. The locking member also has a lower central locking lug 20 which engages in the locking hole 5 of the tongue 4, and an upper stop 21 which serves to unlock the mechanism by the release button 11. The locking member 8 is preferably flat, but can also be slightly curved (i.e. essentially flat), for example in its upper region, and consists e.g. made of metal.

Die Breite der Zapfen 19 entspricht im wesentlichen der Höhe der Langlöcher 18, so daß das Sperrglied 8, wenn es vertikal steht, wie die Figuren 2 und 4 zeigen,sich nicht in vertikaler Richtung bewegen kann, insoweit also fixiert ist. In Längsrichtung der Langlöcher dagegen können sich die Zapfen bewegen, und zwar aufgrund der um ein Vielfaches größeren Länge der Langlöcher in bezug auf die Dicke der Zapfen, so daß das Sperrglied gemäß den Figuren 1 und 3 eine Schräglage, die die Ausraststellung des Sperrgliedes ist, einnehmen kann.The width of the pegs 19 corresponds essentially to the height of the elongated holes 18, so that the locking member 8, when it is vertical, as shown in FIGS. 2 and 4, cannot move in the vertical direction, so that it is fixed. In contrast, the pins can move in the longitudinal direction of the elongated holes, because of the many times longer length of the elongated holes with respect to the thickness of the pins, so that the locking member according to FIGS. 1 and 3 is in an inclined position, which is the disengaged position of the locking member. can take.

Der Metallrahmen 7 besitzt in seinem die beiden Schenkel 17 verbindenden Stegteil 22 eine übliche, längliche Führungsausnehmung 23 zur Aufnahme und axialen Führung des Auswerfers 9 bekannten Aufbaues, der in Verbindung mit der Druckfeder 12 die Zunge 4 des Endstückes 2 bei entriegeltem Sperrglied 8 auswirft. Auf dem Auswerfer 9 stützt sich auch das Sperrglied 8 ab, wenn letzteres entriegelt ist (Figuren 1 und 3). Das vordere Ende der als Stanzloch gebildeten Ausnehmung 23 dient gleichzeitig auch als Anschlag 24 für die Sperrnase 20 des Sperrgliedes, wenn letzteres eingerastet ist (Figur 2), so daß auch dadurch die Raststellung des Sperrgliedes gesichert ist.The metal frame 7 has in its web part 22 connecting the two legs 17 a conventional, elongated guide recess 23 for receiving and axially guiding the ejector 9 of known construction, which in conjunction with the compression spring 12 ejects the tongue 4 of the end piece 2 when the locking member 8 is unlocked. The ejector 9 is supported also the locking member 8 from when the latter is unlocked (Figures 1 and 3). The front end of the recess 23 formed as a punched hole also serves as a stop 24 for the locking lug 20 of the locking member when the latter is engaged (FIG. 2), so that the locking position of the locking member is thereby also secured.

Oberhalb des Auswerfers 9 und hinter dem Sperrglied 8 ist die Sperrgliedstütze 10 angeordnet, und zwar zumindest im wesentlichen parallel, das heißt gegebenenfalls auch genau parallel zur Bewegungsrichtung des Auswerfers axialbeweglich, so daß sich die Stütze 10 beim Verriegeln der Zunge 4 vorbewegt aufgrund der Druckfeder 13 und beim Drücken der Auslösetaste 11 gemäß dem Pfeil 25 zurückbewegt. Wie die Figuren 1 und 3 zeigen, greift die Stütze 10 rückwärtig etwa mittig an dem Sperrglied 8 an und bewirkt so ein Einrastmoment an dem Sperrglied, da dieses im Bereich seiner Sperrnase und während seiner Entriegelungszeit an einem Ergänzungsteil 1a des Gehäuses 1 zeitweise fixiert ist. Die Teile 1 und 1a sind durch eine übliche Rastverbindung 26 miteinander lagesicher verbunden. Das vordere Ende der Sperrgliedstütze hat eine Abrundung 27 als verbesserte Arbeitsfläche für eine erleichterte Bewegung des Sperrgliedes.Above the ejector 9 and behind the locking member 8, the locking member support 10 is arranged, at least substantially parallel, that is to say possibly also axially movable exactly parallel to the direction of movement of the ejector, so that the support 10 moves forward when the tongue 4 is locked due to the compression spring 13 and moved back when the trigger button 11 is pressed according to the arrow 25. As FIGS. 1 and 3 show, the support 10 engages at the rear approximately centrally on the locking member 8 and thus causes a locking moment on the locking member, since this is temporarily fixed in the region of its locking lug and during its unlocking time on an additional part 1a of the housing 1. Parts 1 and 1a are connected to one another in a positionally secure manner by means of a customary latching connection 26. The front end of the locking member support has a rounding 27 as an improved working surface for easier movement of the locking member.

Wie es besser aus Figur 5 zu erkennen ist, hat die Sperrgliedstütze 10 zwei seitliche Arme 28 und 29, mit denen sie in länglichen Aussparungen 30 des gestrichelt angedeuteten Gehäuseteiles 1a geführt ist, wie dem Fachmann ohne weitere Erläuterung klar ist.As can be seen better from FIG. 5, the locking member support 10 has two lateral arms 28 and 29, with which it is guided in elongated recesses 30 of the housing part 1a indicated by dashed lines, as is clear to the person skilled in the art without further explanation.

Vorzugsweise ist die eine Entriegelungsstellung darstellende, nach rückwärts geneigte Schräglage des Sperrgliedes 8 dadurch gesichert, daß das Sperrglied einerseits rück wärtig durch die Stütze 10 an einem erhöhten Bereich und andererseits durch eine vordere untere Anlage an dem Gehäuseteil 1a und an dem Auswerfer 9 sowie durch eine obere Anlage der Sperrzapfen 19 an dem Oberrand der Langlöcher 18 gestützt ist.Preferably, the backward inclined position of the locking member 8, which represents an unlocking position, is secured in that the locking member on the one hand back is supported by the support 10 on an elevated area and on the other hand by a lower front contact on the housing part 1a and on the ejector 9 and by an upper contact of the locking pin 19 on the upper edge of the elongated holes 18.

Alternativ kann die Entriegelungsstellung des Sperrgliedes auch dadurch gesichert sein, daß die seitlichen Langlöcher 18 für die Halterung und Führung der Zapfen des Sperrgliedes eine solche Länge aufweisen, daß anstelle der hinteren Sperrgliedstütze 10 die hintere Begrenzung der Langlöcher einerseits je einen hinteren Anschlag für die Zapfen bei Schräglage des ausgerasteten Sperrgliedes 8 bilden, und daß die Schräglage andererseits durch eine vordere untere Anlage an dem Gehäuseteil 1a und an dem Auswerfer 9 sowie in Verbindung mit der oberen Anlage der Sperrgliedzapfen an den Langlochrändern gegeben ist.Alternatively, the unlocking position of the locking member can also be ensured in that the side elongated holes 18 for holding and guiding the pins of the locking member have such a length that instead of the rear locking member support 10, the rear limitation of the elongated holes on the one hand each has a rear stop for the pins Form inclined position of the disengaged locking member 8, and that the inclined position is given on the other hand by a front lower contact on the housing part 1a and on the ejector 9 and in connection with the upper contact of the locking member pins on the slot edges.

Die Langlöcher 18 in den Schenkeln 17 des Metallrahmens 7 sind vorzugsweise rechteckig ausgebildet. Sie können jedoch auch eine solche Form aufweisen, die sich nach hinten etwas erweitert. Es ist auch möglich, daß sich die Langlöcher 18 nicht exakt parallel zur Bewegungsrichtung der Zunge 4 des entsprechenden Gurtband-Endstückes 2 erstecken, sondern dazu eine etwas geneigte Richtung aufweisen. Es muß jedoch gesichert sein, daß sich das Sperrglied 8 in eine solche Schräglage bewegen läßt, aus welcher es sicher in seine Verriegelungsstellung gebracht werden kann.The elongated holes 18 in the legs 17 of the metal frame 7 are preferably rectangular. However, they can also have a shape that widens somewhat towards the rear. It is also possible that the elongated holes 18 do not extend exactly parallel to the direction of movement of the tongue 4 of the corresponding webbing end piece 2, but instead have a somewhat inclined direction. However, it must be ensured that the locking member 8 can be moved into such an inclined position from which it can be brought securely into its locking position.

Das beschriebene Gurtschloß funktioniert auf folgende Weise. Die beiden, voher zusammengesteckten Gurtband- Endstücke 2,3 werden in das übrige Schloß eingesteckt, wobei die Zunge 4 zunächst allein gegen den Auswerfer 9 zur Anlage kommt und diesen gegen die Federkraft 12 zurückschiebt. Dabei fällt das Sperrglied 8, unterstützt durch die Sperrgliedstütze 10, auf die Zunge 4. Sobald die Zunge 4 ihre Verriegelungsstellung erreicht, kommt das Steuerorgan 6 des Endstückes 3 gegen die Sperrnase 20 des Sperrgliedes 8 zur Anlage und bewirkt,daß das Sperrglied 8, bei weiterer Unterstützung durch die Stütze 10, in das Loch 23 des Rahmens 7 einklinkt und gegen dessen Anschlag 24 zur Anlage kommt. Somit hat sich das Sperrglied 8 aus seiner Schräglage nach Figur 1 in seine Verriegelungsstellung nach Figur 2 bewegt. Aus dieser letzteren Stellung kann das Sperrglied selbsttätig nicht herausgelangen, weil es daran durch seine Zapfen 19, die am Oberrand der Langlöcher 18 anliegen, in Verbindung mit der Sperrgliedstütze 10 gehindert ist. Wird nun die Auslösetaste 11 in Richtung des Pfeiles 25 gedrückt (Figur 3), dann wird das Sperrglied 8 nach hinten gedrückt, wobei sich die Stütze 10 ebenfalls nach hinten gegen die Kraft der Feder 13 verschiebt, wodurch sich die Sperrnase 20 des Sperrgliedes 8 nach oben bewegt und somit die Zunge 4 des entsprechenden Endstückes wieder freigibt. Der Auswerfer 9 bewegt dann die Zunge 4 aus dem Schloßmechanismus heraus und gelangt selbst in seine in den Figuren 1 und 3 gezeigte Ausgangsstellung, bei der sich auch das Sperrglied 8 auf dem Auswerfer 9 abstützt.The buckle described works in the following way. The two, previously put together webbing End pieces 2, 3 are inserted into the rest of the lock, the tongue 4 initially coming into contact solely with the ejector 9 and pushing it back against the spring force 12. The locking member 8, supported by the locking member support 10, falls on the tongue 4. As soon as the tongue 4 reaches its locking position, the control member 6 of the end piece 3 comes to bear against the locking lug 20 of the locking member 8 and causes the locking member 8 to further support by the support 10, latches into the hole 23 of the frame 7 and comes to rest against its stop 24. The locking member 8 has thus moved from its inclined position according to FIG. 1 into its locking position according to FIG. 2. The locking member cannot automatically get out of this latter position because it is prevented from doing so in connection with the locking member support 10 by its pins 19, which abut the upper edge of the elongated holes 18. If the release button 11 is now pressed in the direction of the arrow 25 (FIG. 3), the locking member 8 is pushed backwards, the support 10 also being moved rearward against the force of the spring 13, as a result of which the locking lug 20 of the locking member 8 moves forward moved up and thus the tongue 4 of the corresponding end piece releases again. The ejector 9 then moves the tongue 4 out of the lock mechanism and itself reaches its starting position shown in FIGS. 1 and 3, in which the locking member 8 is also supported on the ejector 9.

Claims (7)

  1. Buckle for seat belt system, comprising a closing mechanism and at least one seat belt end piece insertable therein and ejectable by means of pressure exerted on a button, the end piece having a tongue which can be locked with the mechanism by means of a control member situated at the side of the end piece and the mechanism consists of a U-shaped metal frame with a locking member held by means of journals in its lateral recesses for locking the tongue of the end piece, a spring-loaded ejector actuating the tongue, a spring-loaded locking member support for ensuring at least the locking position of the locking member, and a spring-loaded release button, characterized in that the locking member (8) is a substantially plane plate-shaped component, and that the lateral recesses in the metal frame (7) used for holding and guiding the journals (19) of the locking member (8) consist of oblong holes (18) extending substantially parallel to the direction of movement of the tongue (4) in the frame and being provided with such dimensions that the journals (19) are movable in the direction of movement of the tongue, but are guided substantially free of play in the vertical direction or at least in the locking position of the locking member (8), and that the bridge section (22) of the U-shaped metal frame (7) comprises a stop (24) for fixing the locking position of the locking member, and that the front upper zone of the locking member (8) forms a stop (21) for the purpose of unlocking the locking member by means of the release button (11) and that the locking member support (10) is arranged behind the locking member above the ejector (9) and is movable substantially parallel to the direction of movement of the ejector.
  2. Buckle as claimed in claim 1, characterized in that the plate-shaped metal locking member (8) is arranged substantially rectangularly, the short sides are provided with journals (19) and the lower longitudinal side comprises a locking nose (20) for locking the tongue (4).
  3. Buckle as claimed in claim 1 or 2, characterized in that the locking member support (10), on the one hand, rests on the casing (1) of the buckle by means of a circular-coil compression spring (13) and, on the other hand, acts on the locking member (8) from the rear in such a manner that a locking moment is exerted on the locking member.
  4. Buckle as claimed in claim 1, 2 or 3, characterized in that the unlocked locking member (8) assumes a rearwardly inclined position and that such inclined position is ensured, on the one hand, by a backwardly elevated resting of the inclined locking member support (10) and, on the other hand, by a frontal low resting of the locking member on the buckle casing in cooperation with the upper resting of the locking member journal (19) on the oblong holes (18).
  5. Buckle as claimed in claim 1, 2 or 3, characterized in that the lateral oblong holes (18) for fixing and guiding the journals (19) of the locking member (8) comprise such a length that the rear limits of the oblong holes each comprise a rear stop (31) for the journals in the inclined position of the unlocked locking member and that the inclined position is fixed by front low resting on the buckle casing (1) in connection with the upper resting of the locking member journals (19) on the oblong holes (18).
  6. Buckle as claimed in one of the claims 1 to 5, characterized in that said stop (24) is formed by a punched hole (23) in the bridge part (22) of the metal frame (7).
  7. Buckle as claimed in one of the claims 1 to 6, characterized in that the front end of the locking member support (10) comprises a rounding off (27) for the inclined resting of the locking member (8) thereon and a facilitated function thereof.
EP90111622A 1989-06-23 1990-06-20 Buckle for seat belt system Expired - Lifetime EP0404089B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3920565 1989-06-23
DE3920565A DE3920565A1 (en) 1989-06-23 1989-06-23 BELT LOCK FOR STRAP RESTRAINT SYSTEMS

Publications (2)

Publication Number Publication Date
EP0404089A1 EP0404089A1 (en) 1990-12-27
EP0404089B1 true EP0404089B1 (en) 1992-12-02

Family

ID=6383403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111622A Expired - Lifetime EP0404089B1 (en) 1989-06-23 1990-06-20 Buckle for seat belt system

Country Status (4)

Country Link
US (1) US5067211A (en)
EP (1) EP0404089B1 (en)
DE (2) DE3920565A1 (en)
ES (1) ES2037506T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002064A1 (en) * 1990-01-25 1991-08-01 Riesen & Co Motor safety vehicle belt buckle - has elongated holes for trunnions on locking plate with open recess at rear
JP3042045B2 (en) * 1991-07-19 2000-05-15 タカタ株式会社 Buckle for seat belt device
US5185910A (en) * 1992-02-14 1993-02-16 Theodore Ziaylek, Jr. Reversibly releasable latching apparatus
EP0566856A1 (en) * 1992-04-23 1993-10-27 INDIANA MILLS & MANUFACTURING, INC. End release buckle with pivoting pawl release
DE9414029U1 (en) * 1994-08-30 1994-10-20 Trw Repa Gmbh, 73553 Alfdorf Seat belt buckle
US5749130A (en) * 1996-12-04 1998-05-12 Bilyeu; Paul D. Child-proof seat belt buckle assembly
GB2325957A (en) * 1997-06-06 1998-12-09 Europ Component Co Ltd Seat belt buckle
DE102010034498B4 (en) * 2010-08-16 2020-07-30 Autoliv Development Ab Shockproof quick release fastener for the end fitting of a seat belt
US9974365B2 (en) * 2014-11-07 2018-05-22 Ford Global Technologies, Llc Buckle guide
US10292459B2 (en) * 2016-09-15 2019-05-21 Cutter Technologies Pte Ltd Fastener

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459016A1 (en) * 1979-06-18 1981-01-09 Stahl Carl Gmbh Co Kg SEAT BELT CLASP
JPS6228883Y2 (en) * 1980-01-23 1987-07-24
GB2083542B (en) * 1980-09-12 1985-01-03 Britax Wingard Ltd A tongue and buckle fastener for a safety belt
DE3200770A1 (en) * 1982-01-13 1983-07-21 Autoflug Stakupress GmbH & Co, 2000 Norderstedt BUCKLE FOR A BELT
DE3337473A1 (en) * 1983-10-14 1985-05-02 TRW Repa GmbH, 7071 Alfdorf BELT LOCK FOR A SAFETY BELT
JPS6488Y2 (en) * 1984-10-15 1989-01-05
DE3622768A1 (en) * 1986-07-07 1988-01-21 Riesen & Co BELT LOCK FOR A STRAP SECURITY SYSTEM
GB2195140B (en) * 1986-09-16 1990-09-26 Autoliv Dev Improvements in or relating to a seat belt buckle
YU226787A (en) * 1986-12-29 1990-04-30 Doebelner Beschlaege Metall Closing element for safety belts
JPH0184206U (en) * 1987-11-26 1989-06-05

Also Published As

Publication number Publication date
US5067211A (en) 1991-11-26
DE3920565A1 (en) 1991-01-10
ES2037506T3 (en) 1993-06-16
DE59000533D1 (en) 1993-01-14
EP0404089A1 (en) 1990-12-27

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