EP2999836B1 - Lock for a motor vehicle - Google Patents

Lock for a motor vehicle Download PDF

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Publication number
EP2999836B1
EP2999836B1 EP14733499.9A EP14733499A EP2999836B1 EP 2999836 B1 EP2999836 B1 EP 2999836B1 EP 14733499 A EP14733499 A EP 14733499A EP 2999836 B1 EP2999836 B1 EP 2999836B1
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EP
European Patent Office
Prior art keywords
locking
lever
pawl
locking lever
lock
Prior art date
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EP14733499.9A
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German (de)
French (fr)
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EP2999836A1 (en
Inventor
Thorsten Bendel
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Kiekert AG
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Kiekert AG
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Publication of EP2999836A1 publication Critical patent/EP2999836A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00—Mounting or connecting vehicle locks or parts thereof
    • E05B79/10—Connections between movable lock parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/04—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
    • E05B77/06—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision by means of inertial forces
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents

Definitions

  • the invention relates to a lock in particular for a motor vehicle with a locking mechanism comprising a catch and a pawl for locking the catch in a latching position, a blocking lever (also called blocking pawl or locking lever) for blocking the pawl in its latching position and a release lever for opening the Locking, in particular by moving out of the blocking lever from its blocking position, and a locking lever which blocks the locking mechanism at least when occurring acceleration forces of predetermined size, for example in an accident (crash case).
  • the motor vehicle door lock also simplified called lock for a motor vehicle, comprises a locking mechanism with a rotatably mounted rotary latch for receiving a usually arranged on the motor vehicle locking bolt, which is often also called lock holder or lock bracket.
  • the locking mechanism further has a pawl with which the catch can be latched for holding the locking bolt.
  • the catch of a motor vehicle lock usually has a bifurcated inlet slot (also called inlet mouth) formed by a load arm and a catching arm into which the locking bolt of a vehicle door or flap, for example the bonnet or trunk lid, arrives when the door or flap is closed.
  • the locking pin then rotates the catch from an open position towards the closed position until the pawl locks the catch.
  • the locking bolt can then not leave the inlet slot of the rotary latch.
  • the pre-detent position serves to intercept the corresponding door or flap if it does not reach the main detent position when closing. If the rotary latch is rotated further starting from the pre-latching position, this finally reaches the main latching position.
  • a lock basically has a release lever that is operated to open or unlatch a ratchet.
  • a trigger lever is typically connected to a handle of a door or flap. This may be an external handle or an internal handle of the corresponding door. If such a handle is actuated, the release lever is actuated or pivoted to unlatch the locking mechanism and thus to open the lock.
  • a lock provided with a locking mechanism which comprises at least one actuating lever for triggering or opening of the locking mechanism, that is to say a triggering lever.
  • the lock further includes a locking lever which securely blocks the operating lever at predetermined vehicle accelerations.
  • a lock with a locking mechanism which has a catch and a pawl for locking the catch.
  • the lock also includes a blocking pawl or blocking lever for blocking the pawl in the detent position.
  • DE 10 2010 010 833 A1 describes a lock for a motor vehicle according to the preamble of claim 1.
  • a lock is to be provided, which also requires a high level of functional reliability at the same time a small space, comprising only a few components and therefore easy to assemble.
  • a lock is provided in particular for a motor vehicle door with a locking mechanism comprising a rotary latch and a pawl for locking the rotary latch.
  • the lock preferably comprises a blocking pawl or a blocking lever for blocking the pawl when locking. It has a release lever for triggering, so with the so the locking can be unlocked or opened.
  • the lock comprises a locking lever which protects the locking mechanism against accidental opening, at least when acceleration forces of a predetermined magnitude occur, for example in the case of an accident (crash case).
  • the release lever and the locking lever are mounted on a common axis.
  • the pawl is also mounted on the common axis so as to further reduce the number of parts.
  • the locking lever has a locking contour interacting with the locking mechanism. This contributes to the fact that the lock can not open in a crash case.
  • the locking lever is able to prevent the blocking pawl from leaving its blocking position.
  • the locking lever then comprises in a particularly simple embodiment, a locking contour, which is able to detect a cam of the blocking pawl.
  • the locking lever for this interaction is executed at its opposite end of the bearing with a blockage lever cam comprehensive bend, so as to allow a particularly small space.
  • a further preferred embodiment provides that the locking mechanism and arranged on the axis of the release lever locking lever are mounted in a lock case.
  • the locking lever is mechanically coupled to the release lever.
  • a particular embodiment provides for an elastic coupling of the locking lever with the release lever. Both embodiments help to prevent the opening in a crash, even simple way.
  • the locking lever and the release lever are elastically connected to each other by at least one spring, preferably with a spiral spring suspended from the locking lever end at the bend, so as to further facilitate a simple and small built lock.
  • the mass moment of inertia of the locking lever in the event of a crash prevents movement of the locking lever so that the lock is unable to open.
  • Another embodiment provides that the inertial forces of the locking lever occurring in the event of a crash significantly exceed any coupling forces to the release lever, so as to reliably prevent the opening in the event of a crash.
  • the rotary latch is able to initiate an opening moment into the pawl in order to be able to unlatch the catch particularly easily.
  • a motor vehicle door lock which is equipped with a locking mechanism 1, 2, 3 of a rotary latch 1, a locking pawl 2 and a pawl 3.
  • the ratchet is in the position main rest, that is, the pawl 3 is locked to the catch 1 in the main latching position of the catch 1.
  • the rotary latch 1 may also have a pre-locking position.
  • a release lever 4 is provided, which is connected to at least one actuating lever, not shown here, of the corresponding door of the motor vehicle. Operating levers are usually the outside door or door handle.
  • the release lever 4 is pivoted about its axis 5 in the clockwise direction, as a drawn in the figure arrow makes it clear.
  • the release lever 4 engages with an edge 6 on a pin 6a of the blocking pawl 2.
  • the blocking pawl 2 rotates counterclockwise according to the indicated arrow direction about its axis 7.
  • the catch 1 can pivot about its axis 8 spring assisted clockwise and release a locking pin 9.
  • the locking pin 9 is connected to a motor vehicle door, not shown.
  • the motor vehicle door lock includes a locking lever 10, which is rotatably supported together with the release lever 4 by an axis 5.
  • the axis 8 of the catch 1, the axis 7 of the blocking pawl 2, the axis 5 of the release lever 4 and the locking lever 10 are mounted on a lock case 12. These may in each case be bearing journals which are aligned substantially parallel to one another and are for the most part fastened perpendicularly to a base surface of the lock case 12. This is only illustrative and not limiting.
  • the locking lever 10 is formed as pivotable about the axis 5 pivot lever 10.
  • the locking lever 10 is a Einarmhebel with an angled portion 10a in the direction of the blocking pawl 2.
  • the bend 10a of the locking lever 10 is designed so that thus arranged on the blocking pawl 2 cam 2a can be circumferentially included.
  • the locking lever 10 ensures in the normal operation shown in the figure that the locking pawl 2 is blocked in the event of a crash and can not perform the direction indicated in the opening case counterclockwise movement about the axis 7, which is initiated by the release lever 4 during its operation.
  • the locking mechanism 1, 2, 3 remains locked because the locking pawl 2 is prevented by the locking lever 10 from leaving their Blockadegna.
  • the locking lever 10 is on the one hand mounted together with the release lever 4 by an axis 5 and on the other hand coupled to the release lever 4 and that elastically via a spring 14.
  • This spring 14 connects the locking lever 10 and the release lever 4 with each other.
  • the spring 14 engages preferably at the end of the locking lever 10 at the rear of the bend 10 a of the locking lever 10.
  • a bent end of the spring can be held in a hole both in the locking lever 10 and on an arm, in particular at the free end of such an arm of the release lever 4.
  • Preferred as a spring 14 is a coil spring 14th used.
  • the locking mechanism 1, 2, 3 is locked.
  • the pawl 3 has fallen into the main catch position 1a after the lock pin 9 has entered the catch 1.
  • the rotary latch 1 thus assumes its main latching position 1a.
  • the locking lever 10 mounted on the axle 5 and elastically connected via the spring 14 to the release lever 4 comprises the cam 2a of the blocking lever 2 in such a way that the blocking lever 2 is prevented from leaving its blocking position.
  • the non-actuated state ie the rest position shown. It is a so-called normal state of the motor vehicle door lock.
  • the release lever 4 is acted upon in such a way that it performs the indicated clockwise movement by actuation of a door handle, not shown around its axis 5, this pivotal movement of the release lever 4 ensures that the also mounted on the axis 5 locking lever 10 and this Axis 5 is pivoted clockwise, so is released from the enclosure of the cam 2a. This ensures that the release lever 4 with the locking lever 10 coupling spring 14 safely.
  • the locking lever 10 undergoes a pivotal movement about its axis 5, in a clockwise direction, as indicated by an arrow in the figure. It is a so-called opening case state of the motor vehicle door lock.
  • the release lever 4 and the locking lever 10 move at least substantially synchronously.
  • the locking lever 10 releases the previously held on the cam 2a blocking pawl 2.
  • the release lever 4 at continued movement with its actuating edge 6, the pin 6a and thus the locking pawl 2 pivot.
  • the actuating edge 6 acting on the blocking pawl 2 ensures that the blocking pawl 2 completes the counterclockwise movement indicated in the figure about its axis 7.
  • the pawl 3 can be lifted by the opening moment introduced by the catch 1 from the catch 1, which in turn preferably opens in a spring-assisted manner and releases the previously latched striker 9.
  • the normal operation corresponds, in which the locking lever 10, the locking mechanism 1, 2, 3 or the blocking pawl 2 releases.
  • a spring not shown on the locking lever 10 that the locking lever 10 with the movement of the trigger lever 4 in the starting position also in the non-actuated state, ie the rest position is returned.
  • the spring is mounted on the locking lever 10 as it were on the axis 5 with the locking lever itself. Has proven useful for such a spring, a coil spring.
  • the locking lever 10 is designed as a one-arm as shown and extends starting from its axis preferably as shown substantially rectilinear. This is especially many times as long as wide. This contributes further improved to a small space.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein Schloss insbesondere für ein Kraftfahrzeug mit einem Gesperre umfassend eine Drehfalle und eine Sperrklinke für ein Verrasten der Drehfalle in einer Rastposition, einen Blockadehebel (auch Blockierklinke oder Rasthebel genannt) für ein Blockieren der Sperrklinke in ihrer Rastposition und einen Auslösehebel zum Öffnen des Gesperres, insbesondere durch ein Herausbewegen des Blockadehebels aus seiner blockierenden Position, und einem Sperrhebel welcher das Gesperre zumindest bei auftretenden Beschleunigungskräften vorgegebener Größe, beispielsweise bei einem Unfall (Crash-Fall), blockiert.The invention relates to a lock in particular for a motor vehicle with a locking mechanism comprising a catch and a pawl for locking the catch in a latching position, a blocking lever (also called blocking pawl or locking lever) for blocking the pawl in its latching position and a release lever for opening the Locking, in particular by moving out of the blocking lever from its blocking position, and a locking lever which blocks the locking mechanism at least when occurring acceleration forces of predetermined size, for example in an accident (crash case).

Der Kraftfahrzeugtürverschluss, vereinfacht auch Schloss für ein Kraftfahrzeug genannt, umfasst ein Gesperre mit einer drehbar gelagerten Drehfalle für die Aufnahme eines in der Regel an dem Kraftfahrzeug angeordneten Schließbolzens, der häufig auch Schlosshalter oder Schlossbügel genannt wird. Das Gesperre weist weiter eine Sperrklinke auf, mit der die Drehfalle für ein Halten des Schließbolzens verrastet werden kann.The motor vehicle door lock, also simplified called lock for a motor vehicle, comprises a locking mechanism with a rotatably mounted rotary latch for receiving a usually arranged on the motor vehicle locking bolt, which is often also called lock holder or lock bracket. The locking mechanism further has a pawl with which the catch can be latched for holding the locking bolt.

Die Drehfalle eines Kraftfahrzeugschlosses verfügt üblicherweise über einen durch einen Lastarm und einen Fangarm gebildeten gabelförmigen Einlaufschlitz (auch Einlaufmaul genannt), in den der Schließbolzen einer Fahrzeugtür oder Klappe, beispielsweise auch Motorhaube oder Kofferraumklappe, gelangt, wenn die Tür oder Klappe geschlossen wird. Der Schließbolzen dreht dann die Drehfalle von einer Öffnungsstellung in Richtung Schließstellung, bis die Sperrklinke die Drehfalle verrastet. Der Schließbolzen kann den Einlaufschlitz der Drehfalle dann nicht verlassen.The catch of a motor vehicle lock usually has a bifurcated inlet slot (also called inlet mouth) formed by a load arm and a catching arm into which the locking bolt of a vehicle door or flap, for example the bonnet or trunk lid, arrives when the door or flap is closed. The locking pin then rotates the catch from an open position towards the closed position until the pawl locks the catch. The locking bolt can then not leave the inlet slot of the rotary latch.

In den vergangenen Jahren haben sich Schlösser für Kraftfahrzeuge etabliert, bei denen die Drehfalle durch entsprechende Ausgestaltung der Rastfläche ein öffnendes Moment in die Sperrklinke einzuleiten vermag, wenn diese sich in ihrer Rastposition befindet, das heißt die Drehfalle verursacht ein Öffnungsmoment bezüglich der Sperrklinke. Bei einem solchen Schloss ist zwingend ein Blockadehebel zum Blockieren der Sperrklinke in der Rastposition erforderlich. Der Blockadehebel muss aus seiner blockierenden Position heraus geschwenkt beziehungsweise herausgedreht werden, damit die Sperrklinke ihre Rastposition für ein Öffnen des Gesperres verlassen kann. Derartige, beispielsweise aus der DE 10 2008 061 524 A1 bekannte Schlösser weisen einen besonders hohen Bedienkomfort auf, insbesondere durch ein Öffnen mit geringem Kraftaufwand.In recent years, locks for motor vehicles have been established in which the catch is able to initiate an opening moment in the pawl by appropriate design of the latching surface when it is in its latching position, that is, the catch causes an opening moment with respect to the pawl. With such a lock is necessarily a Blocking lever required to block the pawl in the locking position. The blockage lever must be pivoted out of its blocking position or turned out so that the pawl can leave its locking position for opening the locking mechanism. Such, for example from the DE 10 2008 061 524 A1 Known locks have a particularly high ease of use, in particular by opening with little effort.

Es gibt Kraftfahrzeugschlösser mit zwei Rastpositionen und zwar einer Vorrastposition und einer Hauptrastposition. Die Vorrastposition dient dazu, die entsprechende Tür oder Klappe abzufangen, wenn diese beim Schließen die Hauptrastposition nicht erreicht. Wird die Drehfalle ausgehend von der Vorrastposition entsprechend weiter gedreht, so erreicht diese schließlich die Hauptrastposition.There are motor vehicle locks with two detent positions, namely a pre-detent position and a main detent position. The pre-detent position serves to intercept the corresponding door or flap if it does not reach the main detent position when closing. If the rotary latch is rotated further starting from the pre-latching position, this finally reaches the main latching position.

Ein Schloss verfügt grundsätzlich über einen Auslösehebel, der betätigt wird, um ein Gesperre zu öffnen beziehungsweise zu entrasten. Ein solcher Auslösehebel ist typischerweise mit einem Griff einer Tür oder Klappe verbunden. Dabei kann es sich um einen Außengriff oder einen Innengriff der entsprechenden Tür handeln. Wird ein solcher Griff betätigt, so wird der Auslösehebel betätigt beziehungsweise verschwenkt, um das Gesperre zu entrasten und damit das Schloss zu öffnen.A lock basically has a release lever that is operated to open or unlatch a ratchet. Such a trigger lever is typically connected to a handle of a door or flap. This may be an external handle or an internal handle of the corresponding door. If such a handle is actuated, the release lever is actuated or pivoted to unlatch the locking mechanism and thus to open the lock.

Bei einem Unfall beziehungsweise einer Fahrzeugkollision, nachfolgend auch als Crash - Fall bezeichnet, treten meist schlagartig sehr hohe Beschleunigungskräfte auf, die ein Mehrfaches der Erdbeschleunigung betragen können. Dadurch ist das entsprechende Schloss einschließlich der Hebelwerke, wie dem Betätigungshebel, des Kraftfahrzeuges erheblichen Massenkräften ausgesetzt, welche zu einem ungewollten Öffnen des Gesperres und folglich einem Öffnen des zugehörigen Schlosses führen kann. In einem Crash-Fall kann auch der Betätigungshebel, also ein Türinnen- beziehungsweise Türaußengriff unplanmäßig betätigt werden, was auch zu einem Öffnen des Gesperres führen würde. Es sollte sichergestellt sein, dass ein solches Schloss sich dann nicht unplanmäßig öffnet.In an accident or a vehicle collision, also referred to below as a crash case, very abruptly very high acceleration forces occur, which can amount to a multiple of the gravitational acceleration. As a result, the corresponding lock, including the lever mechanisms, such as the actuating lever, of the motor vehicle is subjected to considerable mass forces, which can lead to an unwanted opening of the locking mechanism and consequently an opening of the associated lock. In a crash case, the operating lever, so a door inside or outside door handle can be operated unplanned, which would also lead to an opening of the locking mechanism. It should be ensured that such a lock is not then opens on schedule.

Aufgrund der beschriebenen Szenarien ergeben sich erhebliche Gefahren für Fahrzeugbenutzer. Denn eine beispielsweise unbeabsichtigt geöffnete Kraftfahrzeugtür kann die in ihr vorhandenen Sicherheitseinrichtungen wie beispielsweise einen Seitenairbag oder auch einen Seitenaufprallschutz nicht mehr für den Schutz der Fahrzeuginsassen zur Verfügung stellen. Aus diesem Grund hat man in der Vergangenheit bereits verschiedene Maßnahmen ergriffen, welche beim Auftreten der beschriebenen abnormalen Beschleunigungskräfte, d. h. im Crash-Fall, entweder die Schlossbetätigung oder das Gesperre blockieren. Es kann eine sogenannte Massensperre vorgesehen werden, welche sich unter normalen Betriebsbedingungen in ihrer Ruhelage befindet und dann außer Eingriff mit dem Gesperre / Hebelwerk ist.Due to the described scenarios, considerable risks for vehicle users arise. For example, an inadvertently opened motor vehicle door can no longer provide the safety devices present in it such as a side airbag or a side impact protection for the protection of the vehicle occupants. For this reason, various measures have already been taken in the past, which at the occurrence of the described abnormal acceleration forces, d. H. in the event of a crash, block either the lock or the locking mechanism. It can be provided a so-called mass lock, which is under normal operating conditions in its rest position and then out of engagement with the locking / lever mechanism.

Um sicherzustellen, dass sich ein Schloss nicht unplanmäßig in einem Crash-Fall öffnet, wird gemäß der Druckschrift EP 01 518 983 A2 ein Schloss mit einem Gesperre vorgesehen, das wenigstens einen Betätigungshebel zum Auslösen beziehungsweise Öffnen des Gesperres, also einen Auslösehebel, umfasst. Das Schloss weist ferner einen Sperrhebel auf, der den Betätigungshebel bei vorgegebenen Fahrzeugbeschleunigungen sicher blockiert.To ensure that a lock does not open unscheduled in a crash, is in accordance with the publication EP 01 518 983 A2 a lock provided with a locking mechanism which comprises at least one actuating lever for triggering or opening of the locking mechanism, that is to say a triggering lever. The lock further includes a locking lever which securely blocks the operating lever at predetermined vehicle accelerations.

Aus der Druckschrift DE 10 2011 010 816 A1 ist ein Schloss mit einem Gesperre bekannt, welches eine Drehfalle und eine Sperrklinke für ein Verrasten der Drehfalle aufweist. Bei dem Schloss handelt es sich um ein Schloss mit einem öffnenden Moment, welches die Drehfalle in die Sperrklinke in der Raststellung einzuleiten vermag. Das Schloss umfasst auch eine Blockierklinke beziehungsweise Blockadehebel zum Blockieren der Sperrklinke in der Raststellung, Darüber hinaus gibt es einen Auslösehebel für ein Öffnen beziehungsweise Auslösen des Gesperres.From the publication DE 10 2011 010 816 A1 a lock with a locking mechanism is known, which has a catch and a pawl for locking the catch. When the lock is a lock with an opening moment, which is able to initiate the catch in the pawl in the detent position. The lock also includes a blocking pawl or blocking lever for blocking the pawl in the detent position. In addition, there is a trigger for opening or releasing the locking mechanism.

In einem Crashfall treten im Vergleich zu einem üblichen Öffnen besonders hohe Beschleunigungen auf. Blockiert der Betätigungshebel nur bei hohen Fahrzeugbeschleunigungen, wie diese in einem Crash-Fall auftreten, so kann ein unbeabsichtigtes Öffnen des Gesperres im Crash-Fall verhindert werden. Im Fall eines üblichen Betätigens des Türgriffs wird der Betätigungshebel mangels hoher Beschleunigung nicht blockiert, um dann ein Öffnen des Schlosses zu ermöglichen.In the event of a crash, particularly high accelerations occur in comparison with a conventional opening. Blocks the operating lever only at high vehicle accelerations, as they occur in a crash, so accidental opening of the locking mechanism in the event of a crash can be prevented. in the In case of a usual operation of the door handle, the operating lever is not blocked for lack of high acceleration, to then allow opening of the lock.

Bei einem Crash-Fall kann auf die beim Aufprall übermäßig starken Beschleunigungskräfte ein Rückprall folgen, welcher auch Bouncen genannt wird. Durch verzögerten oder wiederholten Rückprall, insbesondere verbunden mit Änderungen der Beschleunigungskräfte und -richtungen, kann es zu einem Versagen einer Sperreinrichtung bei hohen Beschleunigungen kommen, die ein unplanmäßiges Öffnen des Schlosses im Crashfall vermeiden soll.In the event of a crash, the acceleration forces which are excessively strong on impact can be followed by a rebound, which is also called bouncing. By delayed or repeated rebound, in particular associated with changes in the acceleration forces and directions, there may be a failure of a locking device at high accelerations, which should prevent unscheduled opening of the lock in the event of a crash.

DE 10 2010 010 833 A1 beschreibt ein Schloss für ein Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1. DE 10 2010 010 833 A1 describes a lock for a motor vehicle according to the preamble of claim 1.

Es ist Aufgabe der Erfindung, ein Schloss bereitzustellen, welches sich auch im Crash-Fall nicht unbeabsichtigt öffnet. Durch den Gegenstand der vorliegenden Erfindung soll insbesondere ein Schloss bereitgestellt werden, das darüber hinaus bei hoher Funktionssicherheit zugleich einen geringen Bauraum benötigt, nur wenige Bauteilen umfasst und folglich einfach zu montieren ist.It is an object of the invention to provide a lock which does not open unintentionally in the event of a crash. By the subject matter of the present invention, in particular, a lock is to be provided, which also requires a high level of functional reliability at the same time a small space, comprising only a few components and therefore easy to assemble.

Zur Lösung dieser Aufgabe wird ein Schloss insbesondere für eine Kraftfahrzeugtür mit einem Gesperre umfassend eine Drehfalle und eine Sperrklinke für ein Verrasten der Drehfalle bereitgestellt. Das Schloss umfasst vorzugsweise eine Blockierklinke beziehungsweise einen Blockadehebel zum Blockieren der Sperrklinke beim Verrasten. Es weist einen Auslösehebel für ein Auslösen auf, mit dem also das Gesperre entrastet beziehungsweise geöffnet werden kann. Das Schloss umfasst einen Sperrhebel, der das Gesperre zumindest bei auftretenden Beschleunigungskräften vorgegebener Größe, beispielsweise bei einem Unfall (Crash-Fall), vor einem unbeabsichtigten Öffnen schützt. Der Auslösehebel und der Sperrhebel sind auf einer gemeinsamen Achse gelagert.To achieve this object, a lock is provided in particular for a motor vehicle door with a locking mechanism comprising a rotary latch and a pawl for locking the rotary latch. The lock preferably comprises a blocking pawl or a blocking lever for blocking the pawl when locking. It has a release lever for triggering, so with the so the locking can be unlocked or opened. The lock comprises a locking lever which protects the locking mechanism against accidental opening, at least when acceleration forces of a predetermined magnitude occur, for example in the case of an accident (crash case). The release lever and the locking lever are mounted on a common axis.

Bei dem Schloss ist nur eine Lagerstelle für Auslösehebel und Sperrhebel vorgesehen, wodurch das Schloss besonders einfach hergestellt werden kann. Darüber hinaus wird ein klein ausgebildeter Schwenkbereich des Sperrhebels ermöglicht und damit ein kleiner Bauraum des Schlosses.In the castle, only one bearing point for release lever and locking lever is provided, whereby the lock can be made very easily. In addition, a small trained pivoting range of the locking lever allows and thus a small space of the castle.

Nach der Erfindung ist vorgesehen, dass die Sperrklinke ebenfalls auf der gemeinsamen Achse gelagert ist, um so die Zahl der Teile weiter zu verringern.According to the invention it is provided that the pawl is also mounted on the common axis so as to further reduce the number of parts.

In einer Ausführungsform ist vorgesehen, dass der Sperrhebel eine mit dem Gesperre wechselwirkende Sperrkontur aufweist. Diese trägt dazu bei, dass sich das Schloss in einem Crash-Fall nicht zu öffnen vermag.In one embodiment, it is provided that the locking lever has a locking contour interacting with the locking mechanism. This contributes to the fact that the lock can not open in a crash case.

In einer Ausführung der Erfindung ist vorgesehen, dass der Sperrhebel die Blockierklinke daran zu hindern vermag, ihre blockierende Stellung zu verlassen. Der Sperrhebel umfasst dann in einer besonders einfachen Ausführungsform eine Sperrkontur, die einen Nocken der Blockierklinke zu erfassen vermag. Bevorzugt ist der Sperrhebel für diese Wechselwirkung an seinem der Lagerung entgegensetzten Ende mit einer den Blockadehebel- Nocken umfassenden Abkröpfung ausgeführt, um so einen besonders kleinen Bauraum zu ermöglichen.In one embodiment of the invention it is provided that the locking lever is able to prevent the blocking pawl from leaving its blocking position. The locking lever then comprises in a particularly simple embodiment, a locking contour, which is able to detect a cam of the blocking pawl. Preferably, the locking lever for this interaction is executed at its opposite end of the bearing with a blockage lever cam comprehensive bend, so as to allow a particularly small space.

Eine weiter bevorzugte Ausführung sieht vor, dass das Gesperre und der auf der Achse des Auslösehebels angeordnete Sperrhebel in einem Schlosskasten gelagert sind.A further preferred embodiment provides that the locking mechanism and arranged on the axis of the release lever locking lever are mounted in a lock case.

In einer Ausführungsform ist vorgesehen, dass der Sperrhebel mit dem Auslösehebel mechanisch gekoppelt ist. Eine besondere Ausführungsform sieht eine elastische Kopplung des Sperrhebels mit dem Auslösehebel vor. Beide Ausführungsformen tragen dazu bei, das Öffnen in einem Crashfall auch einfache Weise zu verhindern.In one embodiment it is provided that the locking lever is mechanically coupled to the release lever. A particular embodiment provides for an elastic coupling of the locking lever with the release lever. Both embodiments help to prevent the opening in a crash, even simple way.

In einer weiteren Ausführungsform ist vorgesehen, dass der Sperrhebel und der Auslösehebel durch zumindest eine Feder elastisch miteinander verbunden sind, vorzugsweise mit einer am Sperrhebelende bei der Abkröpfung eingehängten Spiralfeder, um so weiter verbessert ein einfach und klein gebautes Schloss zu ermöglichen.In a further embodiment, it is provided that the locking lever and the release lever are elastically connected to each other by at least one spring, preferably with a spiral spring suspended from the locking lever end at the bend, so as to further facilitate a simple and small built lock.

Nach einer Ausführungsform ist vorgesehen, dass das Massenträgheitsmoment von dem Sperrhebel im Crash-Fall, also bei entsprechend großen Beschleunigungen, eine Bewegung des Sperrhebels so verhindert, dass das Schloss sich nicht zu öffnen vermag.According to one embodiment, it is provided that the mass moment of inertia of the locking lever in the event of a crash, so with correspondingly large accelerations, prevents movement of the locking lever so that the lock is unable to open.

Eine weitere Ausführungsform sieht vor, dass die beim Crash-Fall auftretenden Trägheitskräfte des Sperrhebels etwaige Koppelkräfte zum Auslösehebel deutlich überschreiten, um so zuverlässig das Öffnen im Crashfall zu verhindern.Another embodiment provides that the inertial forces of the locking lever occurring in the event of a crash significantly exceed any coupling forces to the release lever, so as to reliably prevent the opening in the event of a crash.

In einer weiteren Ausführungsform ist vorgesehen, dass die Drehfalle in die Sperrklinke ein öffnendes Moment einzuleiten vermag, um das Gesperre besonders leicht entrasten zu können.In a further embodiment, it is provided that the rotary latch is able to initiate an opening moment into the pawl in order to be able to unlatch the catch particularly easily.

Im Folgenden wird die Erfindung anhand einer Figur näher erläutert. Die einzige Figur zeigt den erfindungsgemäßen Kraftfahrzeugtürverschluss schematisch.In the following the invention will be explained in more detail with reference to a figure. The single figure shows the motor vehicle door lock according to the invention schematically.

In der Figur ist ein Kraftfahrzeugtürverschluss dargestellt, der mit einem Gesperre 1, 2, 3 aus einer Drehfalle 1, einer Blockierklinke 2 und einer Sperrklinke 3 ausgerüstet ist. Das Gesperre befindet sich in der Position Hauptrast, das heißt, die Sperrklinke 3 ist mit der Drehfalle 1 in der Hauptrastposition der Drehfalle 1 verrastet. Die Drehfalle 1 kann darüber hinaus eine Vorrastposition aufweisen. Zur Betätigung des Gesperres 1, 2, 3 ist ein Auslösehebel 4 vorgesehen, der an zumindest einen hier nicht gezeigten Betätigungshebel der entsprechenden Tür des Kraftfahrzeuges angeschlossen ist. Bei Betätigungshebeln handelt es sich in der Regel um den Türaußen- beziehungsweise Türinnengriff.In the figure, a motor vehicle door lock is shown, which is equipped with a locking mechanism 1, 2, 3 of a rotary latch 1, a locking pawl 2 and a pawl 3. The ratchet is in the position main rest, that is, the pawl 3 is locked to the catch 1 in the main latching position of the catch 1. The rotary latch 1 may also have a pre-locking position. For actuating the locking mechanism 1, 2, 3, a release lever 4 is provided, which is connected to at least one actuating lever, not shown here, of the corresponding door of the motor vehicle. Operating levers are usually the outside door or door handle.

Um das Gesperre 1, 2, 3 zu öffnen, d. h. die Sperrklinke 3 aus der Rastposition zu entfernen, wird der Auslösehebel 4 um seine Achse 5 im Uhrzeigersinn verschwenkt, wie ein in der Figur eingezeichneter Pfeil deutlich macht. Dadurch greift der Auslösehebel 4 mit einer Kante 6 an einem Zapfen 6a der Blockierklinke 2 an. Als Folge hiervon dreht sich die Blockierklinke 2 im Gegenuhrzeigersinn entsprechend der angedeuteten Pfeilrichtung um ihre Achse 7. Sobald die Blockierklinke 2 von der Sperrklinke 3 abgehoben ist, kann die Drehfalle 1 um ihre Achse 8 federunterstützt im Uhrzeigersinn verschwenken und einen Schließbolzen 9 freigeben. Der Schließbolzen 9 ist an eine nicht dargestellte Kraftfahrzeugtür angeschlossen.To open the ratchet 1, 2, 3, d. H. To remove the pawl 3 from the detent position, the release lever 4 is pivoted about its axis 5 in the clockwise direction, as a drawn in the figure arrow makes it clear. As a result, the release lever 4 engages with an edge 6 on a pin 6a of the blocking pawl 2. As a result, the blocking pawl 2 rotates counterclockwise according to the indicated arrow direction about its axis 7. Once the blocking pawl 2 is lifted from the pawl 3, the catch 1 can pivot about its axis 8 spring assisted clockwise and release a locking pin 9. The locking pin 9 is connected to a motor vehicle door, not shown.

Zum weiteren grundsätzlichen Aufbau des Kraftfahrzeugtürverschlusses gehört ein Sperrhebel 10, welcher gemeinsam mit dem Auslösehebel 4 durch eine Achse 5 drehbar gelagert ist.For further basic construction of the motor vehicle door lock includes a locking lever 10, which is rotatably supported together with the release lever 4 by an axis 5.

Die Achse 8 der Drehfalle 1, die Achse 7 der Blockierklinke 2, die Achse 5 des Auslösehebels 4 und des Sperrhebels 10 sind an einem Schlosskasten 12 angebracht. Dabei kann es sich jeweils um Lagerzapfen handeln, die im Wesentlichen parallel zueinander ausgerichtet sind und größtenteils senkrecht an einer Grundfläche des Schlosskastens 12 befestigt sind. Das ist nur beispielhaft und nicht einschränkend zu verstehen.The axis 8 of the catch 1, the axis 7 of the blocking pawl 2, the axis 5 of the release lever 4 and the locking lever 10 are mounted on a lock case 12. These may in each case be bearing journals which are aligned substantially parallel to one another and are for the most part fastened perpendicularly to a base surface of the lock case 12. This is only illustrative and not limiting.

Der Sperrhebel 10 ist als um die Achse 5 drehbarer Schwenkhebel 10 ausgebildet. Bei dem Sperrhebel 10 handelt es sich um einen Einarmhebel mit einer Abkröpfung 10a in Richtung auf die Blockierklinke 2. Die Abkröpfung 10a des Sperrhebels 10 ist so ausgeführt, dass damit ein auf der Blockierklinke 2 angeordneter Nocken 2a umfangseitig umfasst werden kann.The locking lever 10 is formed as pivotable about the axis 5 pivot lever 10. The locking lever 10 is a Einarmhebel with an angled portion 10a in the direction of the blocking pawl 2. The bend 10a of the locking lever 10 is designed so that thus arranged on the blocking pawl 2 cam 2a can be circumferentially included.

Der Sperrhebel 10 sorgt in dem in der Figur dargestellten Normalbetrieb dafür, dass die Blockierklinke 2 im Crash-Fall blockiert ist und nicht die im Öffnungsfall angedeutete Gegenuhrzeigersinn-Bewegung um die Achse 7 vollführen kann, die von dem Auslösehebel 4 bei seiner Betätigung initiiert wird. Das Gesperre 1, 2, 3 bleibt verrastet, weil die Blockierklinke 2 durch den Sperrhebel 10 daran gehindert wird, ihre Blockadestellung zu verlassen.The locking lever 10 ensures in the normal operation shown in the figure that the locking pawl 2 is blocked in the event of a crash and can not perform the direction indicated in the opening case counterclockwise movement about the axis 7, which is initiated by the release lever 4 during its operation. The locking mechanism 1, 2, 3 remains locked because the locking pawl 2 is prevented by the locking lever 10 from leaving their Blockadestellung.

Der Sperrhebel 10 ist einerseits gemeinsam mit dem Auslösehebel 4 durch eine Achse 5 gelagert und andererseits auch mit dem Auslösehebel 4 gekoppelt und zwar elastisch über eine Feder 14. Diese Feder 14 verbindet den Sperrhebel 10 und den Auslösehebel 4 miteinander. Dabei greift die Feder 14 vorzugsweise am Ende des Sperrhebels 10 rückwärtig der Abkröpfung 10a des Sperrhebels 10 an. Wie skizziert, kann ein gebogenes Ende der Feder in einem Loch gehalten sein und zwar sowohl beim Sperrhebel 10 als auch an einem Arm, insbesondere beim freien Ende eines solchen Arms des Auslösehebels 4. Bevorzugt wird als Feder 14 eine Spiralfeder 14 verwendet.The locking lever 10 is on the one hand mounted together with the release lever 4 by an axis 5 and on the other hand coupled to the release lever 4 and that elastically via a spring 14. This spring 14 connects the locking lever 10 and the release lever 4 with each other. In this case, the spring 14 engages preferably at the end of the locking lever 10 at the rear of the bend 10 a of the locking lever 10. As outlined, a bent end of the spring can be held in a hole both in the locking lever 10 and on an arm, in particular at the free end of such an arm of the release lever 4. Preferred as a spring 14 is a coil spring 14th used.

In der dargestellten Figur ist das Gesperre 1, 2, 3 verrastet. Die Sperrklinke 3 ist nach Einlauf des Schließbolzens 9 in die Drehfalle 1 in die Hauptrastposition 1a eingefallen. Die Drehfalle 1 nimmt also ihre Hauptraststellung 1a ein. Der auf der Achse 5 gelagerte und elastisch über die Feder 14 mit dem Auslösehebel 4 verbundene Sperrhebel 10 umfasst den Nocken 2a des Blockadehebels 2 derart, dass dadurch der Blockadehebel 2 daran gehindert wird, seine blockierende Stellung zu verlassen. In der Figur wird der nicht betätigte Zustand, also die Ruhestellung, dargestellt. Es handelt sich um einen so genannten Normalfall-Zustand des Kraftfahrzeugtürverschlusses.In the illustrated figure, the locking mechanism 1, 2, 3 is locked. The pawl 3 has fallen into the main catch position 1a after the lock pin 9 has entered the catch 1. The rotary latch 1 thus assumes its main latching position 1a. The locking lever 10 mounted on the axle 5 and elastically connected via the spring 14 to the release lever 4 comprises the cam 2a of the blocking lever 2 in such a way that the blocking lever 2 is prevented from leaving its blocking position. In the figure, the non-actuated state, ie the rest position shown. It is a so-called normal state of the motor vehicle door lock.

Sobald in dieser Stellung und bei nicht auftretenden abnormalen Beschleunigungen, d. h. im Normalfall, der Auslösehebel 4 in der Weise beaufschlagt wird, dass er durch Betätigung eines nicht gezeigten Türgriffs um seine Achse 5 die angedeutete Uhrzeigersinnbewegung vollführt, sorgt diese Schwenkbewegung des Auslösehebels 4 dafür, dass der ebenfalls auf der Achse 5 gelagerte Sperrhebel 10 auch um diese Achse 5 im Uhrzeigersinn verschwenkt wird, also von der Umfassung des Nockens 2a gelöst wird. Das stellt die den Auslösehebel 4 mit dem Sperrhebel 10 koppelnde Feder 14 sicher. Bei diesem Vorgang erfährt der Sperrhebel 10 eine Schwenkbewegung um seine Achse 5, und zwar im Uhrzeigersinn, wie ein Pfeil in der Figur andeutet. Es handelt sich um einen so genannten Öffnungsfall-Zustand des Kraftfahrzeugtürverschlusses.Once in this position and in the absence of abnormal accelerations, d. H. In the normal case, the release lever 4 is acted upon in such a way that it performs the indicated clockwise movement by actuation of a door handle, not shown around its axis 5, this pivotal movement of the release lever 4 ensures that the also mounted on the axis 5 locking lever 10 and this Axis 5 is pivoted clockwise, so is released from the enclosure of the cam 2a. This ensures that the release lever 4 with the locking lever 10 coupling spring 14 safely. In this process, the locking lever 10 undergoes a pivotal movement about its axis 5, in a clockwise direction, as indicated by an arrow in the figure. It is a so-called opening case state of the motor vehicle door lock.

In dem beschriebenen Öffnungsfall bewegen sich der Auslösehebel 4 und der Sperrhebel 10 zumindest im Wesentlichen synchron. Bei diesem Vorgang gibt der Sperrhebel 10 die zuvor über den Nocken 2a gehaltene Blockierklinke 2 frei. Dadurch kann der Auslösehebel 4 bei fortgesetzter Bewegung mit seiner Betätigungskante 6 den Zapfen 6a und damit die Blockierklinke 2 verschwenken.In the described opening case, the release lever 4 and the locking lever 10 move at least substantially synchronously. In this process, the locking lever 10 releases the previously held on the cam 2a blocking pawl 2. As a result, the release lever 4 at continued movement with its actuating edge 6, the pin 6a and thus the locking pawl 2 pivot.

Die an der Blockierklinke 2 angreifende Betätigungskante 6 sorgt dafür, dass die Blockierklinke 2 die in der Figur angedeutete Gegenuhrzeigersinn-Bewegung um ihre Achse 7 vollzieht. Dadurch kann nachfolgend die Sperrklinke 3 durch das von der Drehfalle 1 eingeleitete öffnende Moment von der Drehfalle 1 abgehoben werden, welche ihrerseits vorzugsweise federunterstützt öffnet und den zuvor gefangenen Schließbolzen 9 freigibt. Hierzu korrespondiert der Normalbetrieb, in welchem der Sperrhebel 10 das Gesperre 1, 2, 3 beziehungsweise die Blockierklinke 2 freigibt.The actuating edge 6 acting on the blocking pawl 2 ensures that the blocking pawl 2 completes the counterclockwise movement indicated in the figure about its axis 7. As a result, subsequently the pawl 3 can be lifted by the opening moment introduced by the catch 1 from the catch 1, which in turn preferably opens in a spring-assisted manner and releases the previously latched striker 9. For this purpose, the normal operation corresponds, in which the locking lever 10, the locking mechanism 1, 2, 3 or the blocking pawl 2 releases.

Bei der Schließung des Gesperres 1, 2, 3 sorgt in einer Ausführungsform eine nicht dargestellte Feder am Sperrhebel 10 dafür, dass der Sperrhebel 10 mit der Bewegung des Auslösehebels 4 in die Ausgangsposition ebenfalls in den nicht betätigten Zustand, also die Ruhestellung zurückgeführt wird. Bevorzugt ist die Feder am Sperrhebel 10 gleichsam auf der Achse 5 mit dem Sperrhebel selbst gelagert. Bewährt hat sich für eine solche Feder eine Spiralfeder.In the closure of the locking mechanism 1, 2, 3 provides in one embodiment, a spring, not shown on the locking lever 10 that the locking lever 10 with the movement of the trigger lever 4 in the starting position also in the non-actuated state, ie the rest position is returned. Preferably, the spring is mounted on the locking lever 10 as it were on the axis 5 with the locking lever itself. Has proven useful for such a spring, a coil spring.

Tritt ausgehend von der in der Figur dargestellten Funktionsstellung ein Crash-Fall auf, so kann der Auslösehebel 4 dadurch ausgelenkt werden. D. h., der Auslösehebel 4 würde eine vergleichbare Beaufschlagung im Uhrzeigersinn um seine Achse 5 wie bei einer "normalen" Betätigung erfahren. Im Unterschied zu dieser "normalen" Betätigung machen sich jedoch im Crash-Fall Trägheitskräfte bemerkbar. Das Massenträgheitsmoment des Sperrhebels 10 ist so ausgeführt, dass in dem beschriebenen Crash-Fall der Sperrhebel 10 nicht synchron mit dem Auslösehebel 4 verschwenkt wird und die Blockerklinke 2 durch den Sperrhebel 10 sicher blockiert wird. Außerdem ist die Auslegung so getroffen, dass der in dem angenommenen Crash-Fall ausgelenkte Auslösehebel 4 mit der dadurch gespannten Feder 14 den Sperrhebel 10 ebenfalls nicht auslenken kann und die sichere Blockade des Gesperres 1, 2, 3 folglich gewährleistet ist.Occurs starting from the functional position shown in the figure, a crash case, so the release lever 4 can be deflected thereby. That is, the trip lever 4 would experience a comparable clockwise action about its axis 5 as in a "normal" operation. In contrast to this "normal" operation, however, inertial forces are noticeable in the event of a crash. The moment of inertia of the locking lever 10 is designed so that in the described crash case, the locking lever 10 is not pivoted synchronously with the release lever 4 and the blocker latch 2 is securely blocked by the locking lever 10. In addition, the interpretation is made such that the deflected in the assumed crash case Trigger lever 4 with the thus tensioned spring 14, the locking lever 10 also can not deflect and the safe blockage of the locking mechanism 1, 2, 3 is thus ensured.

Vorzugsweise ist der Sperrhebel 10 wie dargestellt einarmig ausgeführt und verläuft ausgehend von seiner Achse vorzugsweise wie dargestellt im Wesentlichen geradlinig. Dieser ist insbesondere um eine Mehrfaches lang als breit. Dies trägt weiter verbessert zu einem geringen Bauraum bei.Preferably, the locking lever 10 is designed as a one-arm as shown and extends starting from its axis preferably as shown substantially rectilinear. This is especially many times as long as wide. This contributes further improved to a small space.

Claims (11)

  1. Latch with
    • a locking mechanism (1, 2, 3) including a catch (1), a pawl (3) for engaging the catch (1), and a blocking pawl (2) for blocking the pawl (1) when engaging,
    • a release lever (4) for releasing the pawl (1),
    • a locking lever (10) that can prevent the locking mechanism (1, 2, 3) from opening at high accelerations,
    • the release lever (4) and the locking lever (10) are accommodated on a common axle (5);
    characterized in that
    • the pawl (3) is accommodated on the common axle (5).
  2. Latch according to claim 1, characterized by the fact that the locking lever (10) has a locking contour (10a) which interacts with the locking mechanism (1, 2, 3).
  3. Latch according to claim 1 or 2, characterized by the fact that the locking lever (10) can prevent the blocking pawl (2) from leaving its blocking position.
  4. Latch according to the previous claim, characterized by the fact that the locking lever (10) with its locking contour (10a) can stop a cam (2a) of the blocking pawl (2).
  5. Latch according to one of the previous claims, characterized by the fact that the locking mechanism (1, 2, 3) and the locking lever (10) positioned on the axis (5) of the release lever (4) are accommodated in a latch case (12).
  6. Latch according to one of the previous claims, characterized by the fact that the locking lever (10) is mechanically coupled with the release lever (4).
  7. Latch according to the previous claim, characterized by the provision of an elastic coupling of the locking lever (10) with the release lever (4).
  8. Latch according to one of the two previous claims, characterized by the fact that the locking lever (10) and the release lever (4) are elastically connected by at least one spring (14).
  9. Latch according to one of the previous claims, characterized by the fact that the mass moment of inertia of the locking lever (10) is designed in such a manner that the locking mechanism (1, 2, 3) cannot open in the event of a crash.
  10. Latch according to one of the previous claims, characterized by the fact that the inertial forces of the locking lever (10) which operate in the event of a crash exceed coupling forces on the release lever (4).
  11. Latch according to one of the previous claims, characterized by the fact that the locking lever (10) is designed in a single-armed manner and preferably runs essentially in a straight line starting from its axle (5).
EP14733499.9A 2013-05-23 2014-05-19 Lock for a motor vehicle Active EP2999836B1 (en)

Applications Claiming Priority (2)

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DE102013209599.6A DE102013209599A1 (en) 2013-05-23 2013-05-23 Lock for a motor vehicle
PCT/DE2014/000252 WO2014187445A1 (en) 2013-05-23 2014-05-19 Lock for a motor vehicle

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EP2999836A1 EP2999836A1 (en) 2016-03-30
EP2999836B1 true EP2999836B1 (en) 2019-07-03

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WO (1) WO2014187445A1 (en)

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Publication number Publication date
DE102013209599A1 (en) 2014-11-27
US9611676B2 (en) 2017-04-04
US20160090758A1 (en) 2016-03-31
EP2999836A1 (en) 2016-03-30
WO2014187445A1 (en) 2014-11-27

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