EP0364970B1 - Buckle for a safety belt system in a motor vehicle - Google Patents
Buckle for a safety belt system in a motor vehicle Download PDFInfo
- Publication number
- EP0364970B1 EP0364970B1 EP89119288A EP89119288A EP0364970B1 EP 0364970 B1 EP0364970 B1 EP 0364970B1 EP 89119288 A EP89119288 A EP 89119288A EP 89119288 A EP89119288 A EP 89119288A EP 0364970 B1 EP0364970 B1 EP 0364970B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- buckle
- spring
- motor vehicle
- safety belt
- 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
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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
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- 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
Definitions
- the invention relates to a lock for a motor vehicle seat belt system for receiving and locking a tongue with a latch for fixing the tongue, which is movable between an unlocking and a locking position, a spring-loaded ejector, which the tongue in the unlocked position of the bolt presses the lock housing and a likewise spring-loaded key which can be moved in the insertion direction of the tongue, by means of which the bolt can be moved into its unlocked position and which is blocked by an acceleration acting on the lock in the opposite direction to the release stroke of the key.
- Locks of this type are required for use together with so-called lock braces. If this lock tensioner is triggered in an accident, the lock is accelerated towards the vehicle floor by the energy released and braked in its lowest position within a very short time. Depending on the construction, accelerations between 500 and 1000 g can act on the parts of the lock.
- the inertia of the release button creates forces that tend to move the button to its open position. This releases the lock bolt and releases the lock tongue.
- GB-A-21 04 141 a lock is known, in the release button a second button is slidably guided. This second button actuates a safety pin that holds the release button in the rest position in a stable position relative to the housing.
- a lever loaded with an inertial mass is provided, which, when triggered, tensions between its mounting and the slide button.
- the release button with a shock absorber which is intended to prevent an opening movement of the button in the case of shock-like accelerations.
- the object is achieved in that at least part of the button is additionally tiltable and that the button can be locked by the engagement of a locking element with an element fixed to the housing.
- the key consists of a functional part and an actuating part. Both parts are preferably made in one piece and connected to one another by a film hinge.
- the mass of the actuating part is negligible compared to the mass of the functional part.
- a possibly molded plastic spring onto one of the two key parts, which counteracts a relative movement of the two parts to each other, must be coordinated so that when the lock is accelerated, both key parts move with certainty first, so that a relative movement of the actuating part opposite the functional part can be excluded.
- a locking element attached to the actuating part can come into engagement with an element fixed to the housing and further movement of the whole Lock key.
- the actuating part is first moved relative to the functional part and the locking element is thereby brought into a position in which it cannot come into engagement with the housing-fixed element if the entire key is moved further .
- the button is made in one piece.
- the key spring is not articulated in the middle of the key, but close to the side facing the lock tongue.
- the key is designed to allow limited tilting around this edge.
- the center of gravity of the key is as far as possible from the tipping point in the direction of the opposite side of the key.
- the grip surface of the key is shaped so that when it is actuated for the purpose of opening, a tilting movement first takes place around the articulation point of the key spring.
- a locking element which is attached to the key is brought into a position in which it cannot come into engagement with an element fixed to the housing when the key is moved further.
- the key will have its center of gravity pulled down in the tilted position and the locking element comes into engagement with the housing-fixed element, which results in a locking of the button.
- the pivot point of the key spring can also be shifted to the side facing away from the tongue.
- the center of gravity of the button should be as directly as possible above the pivot point. The result is the same as in the previous example.
- the grip surface of the key and the lock housing are designed in such a way that, when actuated for the purpose of opening the lock, only vertical pressure from above is possible, so that the key is only moved in translation.
- a locking element connected to the key does not come into engagement with an element fixed to the housing.
- the key first performs a tilting movement due to a center of gravity that is not in the line of action of the key spring, so that the locking element can in turn engage with the element fixed to the housing.
- a key which consists of a functional part 1 and an actuating part 2. Both parts are articulated together via axis 3.
- the locking element 5 is fastened, which in the rest position is just before engagement with the element 6 fixed to the housing.
- the spring 4 is tuned so that when the actuating element 2 is pressed, it only moves about the axis 3 before the functional part 1 moves against the force of the spring 7.
- the center of gravity 8 is advantageously in the middle of the functional part 1 and the center of mass 9 of the actuating part 2 is directly above the axis of rotation 3 Actuating part 2 only pivoted out the locking element 5 to such an extent that it does not engage the element 6 fixed to the housing when the functional part 1 moves in the opening direction.
- the button is made in one piece.
- a housing-fixed stop 10 is provided to turn the key 1 ', in its rest position about the point 9, in the position shown. This is done by the force of the spring 7.
- a pressure which is directed approximately perpendicular to this actuating surface 2 '.
- the key 1 ' is brought into a position in which the key-fixed locking element 5' no longer comes into engagement with the housing-fixed element 6 'upon further actuation.
- the button moves translationally in the opening direction continue.
- the button 1 Since the housing-fixed stop 10 acts in one direction on the button, the button 1 'under the action of acceleration forces, only by the pivot point 12 of the spring 7, a resistance. In the illustrated position of the center of gravity 8 ', the key 1' will move downwards in the tilted position shown in FIG. 2, so that the locking element 5 'comes into engagement with the element 6' fixed to the housing and thereby blocks a further opening movement of the key .
- the key 1 ' is held by the spring 13' in its rest position.
- a trigger pressure approximately perpendicular to the actuating surface 2 'acts with the correct dimensioning of the springs 13' and 7, no resulting tilting moment on the key 1 ', so that the entire opening stroke consists of a purely translational movement.
- the articulation point 12 of the spring 7 acts as an abutment, so that when the center of gravity 8 'moves, corresponding to the acceleration forces, the key 1' is exerted a tilting moment and the locking element 5 'engages with the element 6' fixed to the housing is coming.
- a correct dimensioning of the center of gravity 8 'and the spring 13' must be taken into account.
Landscapes
- Lock And Its Accessories (AREA)
- Automotive Seat Belt Assembly (AREA)
- Buckles (AREA)
Description
Die Erfindung geht aus von einem Schloß für ein Kraftfahrzeug-Sicherheitsgurtsystem zur Aufnahme und Verriegelung einer Einsteckzunge mit einem Riegel zur Festlegung der Zunge, der zwischen einer Entriegelungs- und einer Verriegelungsstellung bewegbar ist, einem federbelasteten Auswerfer, der die Zunge in der Entriegelungsstellung des Riegels aus dem Schloßgehäuse drückt und einer ebenfalls federbelasteten in Einschubrichtung der Zunge verschiebbaren Taste, durch die sich der Riegel in seine Entriegelungsstellung bewegen läßt, und die durch eine auf das Schloß in entgegengesetzter Richtung zum Auslösehub der Taste einwirkende Beschleunigung blockiert wird.The invention relates to a lock for a motor vehicle seat belt system for receiving and locking a tongue with a latch for fixing the tongue, which is movable between an unlocking and a locking position, a spring-loaded ejector, which the tongue in the unlocked position of the bolt presses the lock housing and a likewise spring-loaded key which can be moved in the insertion direction of the tongue, by means of which the bolt can be moved into its unlocked position and which is blocked by an acceleration acting on the lock in the opposite direction to the release stroke of the key.
Schlösser dieser Art werden für den Einsatz zusammen mit sog. Schloßstrammern benötigt. Wenn dieser Schloßstrammer bei einem Unfall ausgelöst wird, wird das Schloß durch die freiwerdende Energie in Richtung des Fahrzeugbodens beschleunigt und in seiner untersten Stellung innerhalb kürzester Zeit abgebremst. Dabei können, je nach Konstruktion, Beschleunigungen zwischen 500 und 1000 g auf die Teile des Schlosses wirken. Durch die träge Masse der Auslösetaste entstehen dabei Kräfte, die bestrebt sind, die Taste in ihre Öffnungsstellung zu bewegen. Dadurch wird der Riegel des Schlosses gelöst und die Schloßzunge freigegeben.
Aus der GB-A-21 04 141 ist ein Schloß bekannt, in dessen Auslösetaste eine zweite Taste verschieblich geführt ist. Diese zweite Taste betätigt einen Sicherungsstift, der die Auslösetaste in Ruhestellung in einer relativ zum Gehäuse stabilen Lage hält. Wird nun die zweite Taste, die etwas über die Griffläche der Auslösetaste hinaussteht gedrückt, so bewegt sich der Sicherungsstift in seine Freigabestellung und die Auslösetaste wird freigegeben. Dieses Schloß ist jedoch nicht zusammen mit einem Schloßstrammer geeignet. Bei einer Beschleunigung des Schlosses entgegen der Richtung des Öffnungshubes bewegt sich zuerst aufgrund ihrer Massenträgheit die zweite Taste in ihre Freigabestellung und ermöglicht dadurch den Öffnungshub der Auslösetaste.Locks of this type are required for use together with so-called lock braces. If this lock tensioner is triggered in an accident, the lock is accelerated towards the vehicle floor by the energy released and braked in its lowest position within a very short time. Depending on the construction, accelerations between 500 and 1000 g can act on the parts of the lock. The inertia of the release button creates forces that tend to move the button to its open position. This releases the lock bolt and releases the lock tongue.
From GB-A-21 04 141 a lock is known, in the release button a second button is slidably guided. This second button actuates a safety pin that holds the release button in the rest position in a stable position relative to the housing. If the second button, which protrudes slightly beyond the grip area of the release button, is pressed, the locking pin moves into its release position and the release button is released. However, this lock is not suitable for use with a lock halter. When the lock is accelerated against the direction of the opening stroke, the second button first moves into its release position due to its inertia, thereby enabling the opening button of the release button.
Aus der DE-B-20 43 634 ist ein Zentralgurtschloß für Fallschirmspringer-Körpergurtzeuge bekannt. Bei diesem Schloß ist die Auslösetaste als Drehscheibe ausgebildet. Zum Auslösen muß diese Scheibe zuerst um ihre Mittelachse gedreht und dann in das Gehäuse eingedrückt werden. Zum einen ist die Formgebung als Drehscheibe für Kraftfahrzeugsicherheitsgurtschlösser nicht geeignet, und zum anderen wäre die Handhabung z.B. nach Unfällen oder bei einem Brand des Fahrzeuges zu kompliziert und umständlich. Es wurden aber auch bereits Schlösser bekannt, die für das Zusammenwirken mit einem Schloßstrammer für Kraftfahrzeuge geeignet sind. In der EP-A-212507 ist ein Schloß gezeigt, bei dem die Masse der Auslösetaste durch eine Ausgleichsmasse, die über einen Hebelarm mit der Taste verbunden ist kompensiert wird. In einem anderen Ausführungsbeispiel ist ein mit einer Trägheitsmasse belasteter Hebel vorgesehen, der sich im Auslösefall zwischen seiner Lagerung und der Schiebetaste verspannt.
Aus dieser Schrift ist es ebenfalls bekannt die Auslösetaste mit einem Stoßdämpfer zu versehen, der bei schockartigen Beschleunigungen eine Öffnungsbewegung der Taste verhindern soll.From DE-B-20 43 634 a central belt lock for skydiving body harnesses is known. In this lock, the release button is designed as a turntable. To release this disc must first be rotated about its central axis and then pressed into the housing. On the one hand, the design as a turntable for motor vehicle seat belt buckles is not suitable, and on the other hand, handling would be too complicated and cumbersome, for example after accidents or in the event of a fire in the vehicle. However, locks were also known which are suitable for interacting with a lock tensioner for motor vehicles. In EP-A-212507 a lock is shown in which the mass of the release button is compensated for by a balancing mass which is connected to the button via a lever arm. In another embodiment, a lever loaded with an inertial mass is provided, which, when triggered, tensions between its mounting and the slide button.
From this document it is also known to provide the release button with a shock absorber which is intended to prevent an opening movement of the button in the case of shock-like accelerations.
Es ist Aufgabe der Erfindung ein Schloß zu schaffen, das bei einem Strammvorgang eine Fehlauslösung sicher vermeidet, das einfach zu handhaben ist und das keine oder nur wenige zusätzliche Teile benötigt und somit preiswert herstellbar ist.It is an object of the invention to provide a lock which reliably avoids false triggering during a pretensioning process, which is easy to handle and which requires no or only a few additional parts and is therefore inexpensive to produce.
Die Aufgabe wird dadurch gelöst, daß zumindest ein Teil der Taste zusätzlich kippbar gelagert ist und daß die Taste durch den Eingriff eines Sperrelementes mit einem gehäusefesten Element sperrbar ist.The object is achieved in that at least part of the button is additionally tiltable and that the button can be locked by the engagement of a locking element with an element fixed to the housing.
In einem ersten Ausführungsbeispiel besteht die Taste aus einem Funktionsteil und einem Betätigungsteil. In bevorzugter Weise sind beide Teile einstückig gefertigt und durch ein Filmscharnier miteinander verbunden. Die Masse des Betätigungsteiles ist gegenüber der Masse des Funktionsteiles vernachläßigbar. Eine evtl. aus Kunststoff an eines der beiden Tastenteile angespritzte Kunststoffeder, die einer Relativbewegung der beiden Teile zueinander entgegenwirkt, muß so abgestimmt sein, daß bei einer auf das Schloß einwirkenden Beschleunigung sich mit Sicherheit zuerst beide Tastenteile bewegen, so daß eine Relativbewegung des Betätigungsteiles gegenüber dem Funktionsteil ausgeschlossen werden kann. Dadurch kann ein am Betätigungsteil angebrachtes Sperrelement mit einem gehäusefesten Element in Eingriff kommen und eine weitere Bewegung der gesamten Taste sperren. Soll die Taste jedoch von Hand gedrückt werden um das Schloß zu öffnen, wird zuerst das Betätigungsteil relativ zum Funktionsteil bewegt und das Sperrelement dadurch in eine Position gebracht, in der es bei einer weiteren Bewegung der gesamten Taste nicht mit dem gehäusefesten Element in Eingriff kommen kann.In a first embodiment, the key consists of a functional part and an actuating part. Both parts are preferably made in one piece and connected to one another by a film hinge. The mass of the actuating part is negligible compared to the mass of the functional part. A possibly molded plastic spring onto one of the two key parts, which counteracts a relative movement of the two parts to each other, must be coordinated so that when the lock is accelerated, both key parts move with certainty first, so that a relative movement of the actuating part opposite the functional part can be excluded. As a result, a locking element attached to the actuating part can come into engagement with an element fixed to the housing and further movement of the whole Lock key. However, if the key is to be pressed by hand to open the lock, the actuating part is first moved relative to the functional part and the locking element is thereby brought into a position in which it cannot come into engagement with the housing-fixed element if the entire key is moved further .
Bei einem weiteren Ausführungsbeispiel ist die Taste vollkommen einteilig gefertigt. Die Tastenfeder ist dabei nicht in der Mitte der Taste angelenkt, sondern nahe der Seite, die der Schloßzunge zugewandt ist. Die Führung der Taste ist so konzipiert, daß sie ein begrenztes Kippen um diese Kante zuläßt. Der Massenschwerpunkt der Taste liegt dabei möglichst weit von dem Kippunkt in Richtung der gegenüberliegenden Tastenseite entfernt. Die Griffläche der Taste ist so geformt, daß bei einer Betätigung zum Zwecke des Öffnens zuerst eine Kippbewegung um den Anlenkpunkt der Tastenfeder stattfindet. Dabei wird wiederum ein Sperrelement, das an der Taste befestigt ist in eine Position gebracht, in der es bei einer weiteren Bewegung der Taste nicht mit einem gehäusefesten Element in Eingriff kommen kann. Wirkt auf das Schloß jedoch eine Beschleunigung, so wird die Taste durch ihren Massenschwerpunkt in der gekippten Stellung nach unten gezogen und das Sperrelement kommt mit dem gehäusefesten Element in Eingriff, was eine Sperrung der Taste zur Folge hat.In a further embodiment, the button is made in one piece. The key spring is not articulated in the middle of the key, but close to the side facing the lock tongue. The key is designed to allow limited tilting around this edge. The center of gravity of the key is as far as possible from the tipping point in the direction of the opposite side of the key. The grip surface of the key is shaped so that when it is actuated for the purpose of opening, a tilting movement first takes place around the articulation point of the key spring. Here again, a locking element which is attached to the key is brought into a position in which it cannot come into engagement with an element fixed to the housing when the key is moved further. However, if the lock is accelerated, the key will have its center of gravity pulled down in the tilted position and the locking element comes into engagement with the housing-fixed element, which results in a locking of the button.
Der Anlenkpunkt der Tastenfeder läßt sich auch auf die der Zunge abgewandten Seite verlagern. In diesem Fall müßte der Massenschwerpunkt der Taste möglichst direkt über dem Anlenkpunkt liegen. Das Ergebnis ist dasselbe wie im vorhergehenden Beispiel.The pivot point of the key spring can also be shifted to the side facing away from the tongue. In this case, the center of gravity of the button should be as directly as possible above the pivot point. The result is the same as in the previous example.
In einem weiteren Ausführungsbeispiel ist die Griffläche der Taste und das Schloßgehäuse so gestaltet, daß bei einer Betätigung zum Zweck des Öffnens des Schlosses nur ein Druck senkrecht von oben möglich ist, so daß die Taste ausschließlich translatorisch bewegt wird. In diesem Fall kommt ein mit der Taste verbundenes Sperrelement nicht in Eingriff mit einem gehäusefesten Element. Wirkt jedoch eine Beschleunigung auf das Schloß, so führt die Taste, bedingt durch einen Massenschwerkpunkt, der nicht in der Wirklinie der Tastenfeder liegt, zuerst eine Kippbewegung aus, so daß das Sperrelement wiederum mit dem gehäusefesten Element in Eingriff kommen kann.In a further embodiment, the grip surface of the key and the lock housing are designed in such a way that, when actuated for the purpose of opening the lock, only vertical pressure from above is possible, so that the key is only moved in translation. In this case, a locking element connected to the key does not come into engagement with an element fixed to the housing. However, if the lock is accelerated, the key first performs a tilting movement due to a center of gravity that is not in the line of action of the key spring, so that the locking element can in turn engage with the element fixed to the housing.
Im folgenden ist die Erfindung anhand der Zeichnung näher erläutert:The invention is explained in more detail below with reference to the drawing:
Es zeigt
- Figur 1
ein erstes Ausführungsbeispiel des erfindungsgemäßen Gegenstandes mit 2-teiliger Taste Figur 2 bis 4 den erfindungsgemäßen Gegenstand mit einteiliger Taste
- Figure 1
a first embodiment of the object of the invention with a two-part button - Figure 2 to 4 the subject of the invention with a one-piece button
In Figur 1 ist eine Taste dargestellt, die aus einem Funktionsteil 1 und einem Betätigungsteil 2 besteht. Beide Teile sind über die Achse 3 gelenkig miteinander verbunden. Am Betätigungsteil 2 ist das Sperrelement 5 befestigt, welches in der Ruhestellung kurz vor dem Eingriff mit dem gehäusefesten Element 6 steht. Die Feder 4 ist so abgestimmt, daß sich bei einem Druck auf das Betätigungselement 2 dieses erst um die Achse 3 bewegt, bevor sich das Funktionsteil 1 gegen die Kraft der Feder 7 verschiebt. In vorteilhafter Weise liegt der Massenschwerpunkt 8 in der Mitte des Funktionsteils 1 und der Massenschwerpunkt 9 des Betätigungsteiles 2 direkt über der Drehachse 3. Dadurch wird bei einem Druck auf das Betätigungsteil 2 erst das Sperrelement 5 soweit ausgeschwenkt, daß es bei einer Bewegung des Funktionsteiles 1 in Öffnungsrichtung nicht mit dem gehäusefesten Element 6 in Eingriff gelangt. Wirkt dagegen eine Beschleunigung auf das Schloß, so findet keine rotatorische Bewegung um die Achse 3 statt, sondern das Funktionsteil 1 bewegt sich zusammen mit dem Betätigungsteil 2 in Öffnungsrichtung. Das Sperrelement 5 gelangt dadurch in Eingriff mit dem gehäusefesten Element 6 und die gesamte Tasteneinheit wird gesperrt.In Figure 1, a key is shown, which consists of a functional part 1 and an
In den übrigen Figuren ist die Taste einteilig ausgebildet. In Figur 2 ist ein gehäusefester Anschlag 10 vorgesehen, um die Taste 1′, in ihrer Ruhestellung um den Punkt 9, in die dargestellte Stellung zu drehen. Dies geschieht durch die Kraft der Feder 7. Beim Betätigen der Taste 1′ wird auf die Betätigungsfläche 2′ ein Druck ausgeübt, der in etwa senkrecht zu dieser Betätigungsfläche 2′ gerichtet ist. Dadurch wird die Taste 1′ in eine Stellung gebracht, in der das tastenfeste Sperrelement 5′ bei weiterer Betätigung nicht mehr mit dem gehäusefesten Element 6′ in Eingriff kommt. Bei weiterem Druck auf die Betätigungsfläche 2′ bewegt sich die Taste translatorisch in Öffnungsrichtung weiter. Da der gehäusefeste Anschlag 10 nur in einer Richtung auf die Taste wirkt, wird der Taste 1′ unter Einwirkung von Beschleunigungskräften, nur durch den Anlenkpunkt 12 der Feder 7 ein Widerstand entgegengesetzt. Bei der dargestellten Lage des Massenschwerpunktes 8′ wird sich dadurch die Taste 1′ in der in Figur 2 gezeigten gekippten Stellung nach unten bewegen, so daß das Sperrelement 5′ in Eingriff mit dem gehäusefesten Element 6′ gelangt und dadurch eine weitere Öffnungsbewegung der Taste sperrt.In the remaining figures, the button is made in one piece. In Figure 2, a housing-fixed stop 10 is provided to turn the key 1 ', in its rest position about the point 9, in the position shown. This is done by the force of the
In Figur 3 liegt der Massenschwerpunkt 8′ der Taste 1′ in der Wirklinie der Feder 7. Bei einem Druck auf die Betätigungsfläche 2′ kippt die Taste entgegen der Kraft der Feder 13 über den Anlenkpunkt 12′ der Feder 7. Dadurch gelangt wiederum das Sperrelement 5′ außer Eingriff mit dem gehäusefesten Element 6′. Wirkt eine Beschleunigung auf das Schloß, ist der Massenschwerpunkt 8′ bestrebt, sich auf der angedeuteten Linie nach unten zu bewegen. Dabei wirken keinerlei Kippkräfte auf die Taste 1′, die ein Kippen ihrerseits entgegen der Kraft der Feder 13 bewirken können. Im Falle, daß der Massenschwerpunkt 8′ oberhalb dieser Linie liegt, würde sogar ein Kippmoment in entgegengesetzter Richtung auf die Taste wirken. In beiden Fällen käme das Sperrelement 5′ sicher in Eingriff mit dem gehäusefesten Element 6′.In Figure 3, the center of gravity 8 'of the button 1' in the line of action of the
Beim Ausführungsbeispiel nach Figur 4 wird die Taste 1′ durch die Feder 13′ in ihrer Ruhestellung gehalten. Bei einem Auslösedruck etwa senkrecht zur Betätigungsfläche 2′ wirkt bei richtiger Dimensionierung der Federn 13′ und 7 kein resultierendes Kippmoment auf die Taste 1′, so daß der gesamte Öffnungshub aus einer rein translatorischen Bewegung besteht.
Beim Auftreten von Beschleunigungskräften wirkt der Anlenkpunkt 12 der Feder 7 als Widerlager, so daß bei einer Bewegung des Massenschwerpunktes 8′, entsprechend den Beschleunigungskräften, auf die Taste 1′ ein Kippmoment ausgeübt wird und das Sperrelement 5′ mit dem gehäusefesten Element 6′ in Eingriff kommt. Hierbei ist selbstverständlich eine richtige Dimensionierung des Massenschwerpunktes 8′ und der Feder 13′ zu berücksichtigen.In the embodiment of Figure 4, the key 1 'is held by the spring 13' in its rest position. At a trigger pressure approximately perpendicular to the actuating surface 2 'acts with the correct dimensioning of the
When acceleration forces occur, the
Claims (9)
- A buckle for a safety belt system in a motor vehicle for receiving and bolting an insertion tongue, with a bolt for securing the tongue, which is movable between an unbolted position and a bolted position, a spring-loaded ejector which presses the tongue in the unbolted position of the bolt out of the buckle casing, and a key that is also spring-loaded and displaceable in the insertion direction of the tongue, whereby the key can be moved into its unbolted position, and which is blocked by the acceleration acting on the buckle in the opposite direction to the releasing travel of the key,
characterized in that
at least one part of the key (1, 2, 1') is additionally mounted for pivoting and that the key (1, 2, 1') can be locked by the engagement of a locking element (5, 5') with an element (6, 6') fixed to the casing. - A buckle for a safety belt system in a motor vehicle according to claim 1,
characterized in that
the key consists of a functional part (1) that is movable in translation and a pivotable actuating part (2) articulated thereto, which is provided with at least one locking element (5). - A buckle for a safety belt system in a motor vehicle according to claim 2,
characterized in that
the locking element (5) comes into engagement with at least one element (6) fixed to the casing only during a translational movement of the key (1, 2). - A buckle for a safety belt system in a motor vehicle according to claim 2,
characterized in that
the functional part (1) and the actuating part (2) of the key are formed integrally, being connected by a film hinge, and that a spring (4) is injection-moulded on the actuating part (2) and/or on the functional part (1). - A buckle for a safety belt system in a motor vehicle according to claim 1,
characterized in that
on actuation, the key (1') first performs a pivoting movement round the articulation point (12, 12') of the key spring (7) and only then passes over into the translational movement of the opening travel. - A buckle for a safety belt system in a motor vehicle according to claim 5,
characterized in that
the key (1') is provided with at least one locking element (5') which, during an acceleration of the buckle against the opening travel of the key, comes into engagement with an element (6') that is fixed to the casing. - A buckle for a safety belt system in a motor vehicle according to claim 6,
characterized in that
the articulation point (12') of the key spring (7) is located close to the side of the key (1') facing away from the tongue, that the centre of mass (8') of the key (1') lies on the line of action of the key spring, and that a spring (13) retains the key in the pivoting position assigned to the locked position. - A buckle for a safety belt system in a motor vehicle according to claim 5,
characterized in that
the articulation point (12) of the key spring (7) is located close to the side of the key (1') facing the tongue, and that the centre of mass of the key is interspaced therefrom at as large a distance as possible, and that on the side of the key (1') facing away from the tongue, provision is made for a projection (9) cooperating with a stop (10) that is fixed to the casing. - A buckle for a safety belt system in a motor vehicle according to claim 1,
characterized in that
the key (1') is retained by a spring (13') in the releasing position, that it performs a translational movement when the buckle is released, and that, in the case of an opposite acceleration acting on the buckle, it pivots round the articulation point (12) of the key spring (7) facing the tongue, against the action of the spring (13'), into the locking position defined by a locking element (5') fixed to the key and a locking element (6') fixed to the casing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3835508A DE3835508A1 (en) | 1988-10-19 | 1988-10-19 | LOCK FOR A MOTOR VEHICLE SAFETY BELT SYSTEM |
| DE3835508 | 1988-10-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0364970A2 EP0364970A2 (en) | 1990-04-25 |
| EP0364970A3 EP0364970A3 (en) | 1991-07-03 |
| EP0364970B1 true EP0364970B1 (en) | 1994-01-19 |
Family
ID=6365402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89119288A Expired - Lifetime EP0364970B1 (en) | 1988-10-19 | 1989-10-17 | Buckle for a safety belt system in a motor vehicle |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5029369A (en) |
| EP (1) | EP0364970B1 (en) |
| DE (2) | DE3835508A1 (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5280669A (en) * | 1990-03-26 | 1994-01-25 | Takata Corporation | Buckle unit |
| DE4015235C1 (en) * | 1990-05-13 | 1991-11-21 | Autoflug Gmbh & Co Fahrzeugtechnik, 2084 Rellingen, De | Safety belt lock - has built-in sprung ejector and bolt to engage slot in tongue and hold until release by slide in housing |
| DE4022162A1 (en) * | 1990-07-12 | 1992-01-16 | Licentia Gmbh | DEVICE AND METHOD FOR STACKING SMALL GOODS |
| DE59009070D1 (en) * | 1990-11-15 | 1995-06-14 | Trw Repa Gmbh | Lock for seat belt systems in vehicles. |
| JP3375088B2 (en) * | 1992-02-19 | 2003-02-10 | タカタ株式会社 | Buckle device in seat belt device |
| DE9202527U1 (en) * | 1992-02-27 | 1992-04-16 | Autoliv Development AB, Vårgårda | Seat belt buckle with locking lock |
| DE29613690U1 (en) * | 1996-08-07 | 1996-12-05 | Trw Occupant Restraint Systems Gmbh, 73551 Alfdorf | Belt-tightening fastener for seat belts |
| US6363591B1 (en) * | 1997-08-04 | 2002-04-02 | Breed Automotive Technology, Inc. | Safety belt buckle |
| US7370393B2 (en) * | 2004-09-20 | 2008-05-13 | Delphi Technologies, Inc. | Seat belt buckle for use with pretensioner |
| US7543363B2 (en) | 2005-05-26 | 2009-06-09 | Delphi Technologies, Inc. | Seat belt buckle for use with pretensioner |
| US7263750B2 (en) | 2005-06-09 | 2007-09-04 | Amsafe, Inc. | Buckle assembly having single release for multiple belt connectors |
| US8303043B2 (en) | 2008-09-29 | 2012-11-06 | Amsafe, Inc. (Phoenix Group) | Tensioning apparatuses for occupant restraint systems and associated systems and methods |
| US7904997B2 (en) * | 2008-11-07 | 2011-03-15 | Amsafe, Inc. | Buckles for inflatable personal restraint systems and associated systems and methods |
| US8469401B2 (en) | 2009-02-23 | 2013-06-25 | Amsafe, Inc. | Seat harness pretensioner |
| CA2719846A1 (en) | 2009-11-02 | 2011-05-02 | Amsafe Commercial Products, Inc. | Devices for adjusting tension in seat belts and other restraint system webs, and associated methods |
| WO2011056989A1 (en) | 2009-11-04 | 2011-05-12 | Amsafe Commercial Products, Inc. | Restraint system buckle components having tactile surfaces, and associated methods of use and manufacture |
| US8627554B1 (en) | 2010-05-03 | 2014-01-14 | Amsafe, Inc. (Phoenix Group) | Buckle assemblies with swivel and dual release features and associated methods of use and manufacture |
| US8777323B2 (en) | 2010-07-20 | 2014-07-15 | Amsafe, Inc. | Restraint harnesses and associated methods of use and manufacture |
| USD661619S1 (en) | 2010-09-15 | 2012-06-12 | Amsafe Commercial Products, Inc. | Buckle assembly |
| US9022483B2 (en) | 2012-06-07 | 2015-05-05 | Shield Restraint Systems, Inc. | Seatbelt buckle tongue assembly |
| WO2014130485A1 (en) | 2013-02-19 | 2014-08-28 | Amsafe, Inc. | Buckle assemblies with lift latches and associated methods and systems |
| US9277788B2 (en) | 2013-02-19 | 2016-03-08 | Amsafe, Inc. | Dual release buckle assemblies and associated systems and methods |
| WO2016100566A1 (en) | 2014-12-16 | 2016-06-23 | Shield Restraint Systems, Inc. | Web adjusters for use with restraint systems and associated methods of use and manufacture |
| AU2016331301A1 (en) | 2015-10-02 | 2018-04-12 | Shield Restraint Systems, Inc. | Load indicators for personal restraint systems and associated systems and methods |
| US10604259B2 (en) | 2016-01-20 | 2020-03-31 | Amsafe, Inc. | Occupant restraint systems having extending restraints, and associated systems and methods |
| US9814282B2 (en) | 2016-02-02 | 2017-11-14 | Shield Restraint Systems, Inc. | Harsh environment buckle assemblies and associated systems and methods |
| AU2018219223A1 (en) | 2017-02-07 | 2019-08-29 | Shield Restraint Systems, Inc. | Web adjuster |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2043634C3 (en) * | 1970-09-03 | 1974-02-28 | Autoflug Gmbh, 2081 Egenbuettel | Central belt buckle, in particular for parachutist body harnesses |
| DE2740458C3 (en) * | 1977-09-08 | 1983-12-29 | Carl Stahl Gmbh & Co Kg, Gurt- Und Bandweberei, 7922 Herbrechtingen | Belt buckles, in particular for seat belts |
| GB1589059A (en) * | 1978-05-12 | 1981-05-07 | Securon Ag | Buckle for safety belts and seat belts |
| DE2903230A1 (en) * | 1979-01-29 | 1980-07-31 | Holger Seel | Seat belt lock with U=shaped frame - has pressure element releasing locking member before release pushbutton is moved to unlocking position |
| SE447535B (en) * | 1980-06-16 | 1986-11-24 | Stil Ind Ab | Seat belt buckle with a detachable coupling part and a detachable coupling part |
| JPS6228890Y2 (en) * | 1981-06-22 | 1987-07-24 | ||
| DE3200770A1 (en) * | 1982-01-13 | 1983-07-21 | Autoflug Stakupress GmbH & Co, 2000 Norderstedt | BUCKLE FOR A BELT |
| CA1211276A (en) * | 1983-02-18 | 1986-09-16 | Horst U. Befort | End release buckle |
| US4575908A (en) * | 1985-07-05 | 1986-03-18 | General Motors Corporation | Lock for seat belt buckle |
| SE448595B (en) * | 1985-08-02 | 1987-03-09 | Autoliv Dev | WELDING MACHINE FOR CAR BELTS WITH TWO SEPARATA LOCKING ELEMENT |
| DE3533684A1 (en) * | 1985-08-17 | 1987-02-26 | Autoflug Gmbh | SAFETY BELT CLOSURE |
| DE3537465A1 (en) * | 1985-10-22 | 1987-04-23 | Autoflug Gmbh | Safety-belt fastening |
| GB2195140B (en) * | 1986-09-16 | 1990-09-26 | Autoliv Dev | Improvements in or relating to a seat belt buckle |
| GB2202264B (en) * | 1987-02-10 | 1991-04-24 | Autoliv Dev | Improvements in or relating to a safety belt buckle |
-
1988
- 1988-10-19 DE DE3835508A patent/DE3835508A1/en active Granted
-
1989
- 1989-10-17 EP EP89119288A patent/EP0364970B1/en not_active Expired - Lifetime
- 1989-10-17 DE DE89119288T patent/DE58906761D1/en not_active Expired - Fee Related
- 1989-10-19 US US07/423,114 patent/US5029369A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3835508A1 (en) | 1990-05-03 |
| EP0364970A3 (en) | 1991-07-03 |
| US5029369A (en) | 1991-07-09 |
| DE58906761D1 (en) | 1994-03-03 |
| DE3835508C2 (en) | 1990-08-09 |
| EP0364970A2 (en) | 1990-04-25 |
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