EP3143226B1 - Motor vehicle lock - Google Patents

Motor vehicle lock Download PDF

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Publication number
EP3143226B1
EP3143226B1 EP15736380.5A EP15736380A EP3143226B1 EP 3143226 B1 EP3143226 B1 EP 3143226B1 EP 15736380 A EP15736380 A EP 15736380A EP 3143226 B1 EP3143226 B1 EP 3143226B1
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EP
European Patent Office
Prior art keywords
blocking
pawl
lock
stop
drive
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.)
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Application number
EP15736380.5A
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German (de)
French (fr)
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EP3143226A1 (en
Inventor
Carsten Fuchs
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.)
Kiekert AG
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Kiekert AG
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Publication of EP3143226A1 publication Critical patent/EP3143226A1/en
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Classifications

    • 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
    • E05B77/54—Automatic securing or unlocking of bolts triggered by certain vehicle parameters, e.g. exceeding a speed threshold
    • 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
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/56—Control of actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors

Definitions

  • the invention relates to an electric lock for a motor vehicle with a locking mechanism according to the preamble of claim 1.
  • the locking mechanism comprises a rotatably mounted rotary latch for receiving a locking bolt.
  • the locking mechanism also has a pawl with which the rotary latch can be locked.
  • the parts of the locking mechanism which are made of metal and / or plastic, are usually attached to a lock plate that is basically made of metal so that they can pivot or rotate.
  • the rotary latch of a motor vehicle lock usually has a fork-shaped inlet slot formed by the load arm and catch arm, into which the locking bolt of a vehicle door or flap, for example an engine hood or trunk flap, enters when the door or flap is closed.
  • the locking bolt then rotates the rotary latch from an open position to a closed position.
  • the rotary latch has reached the closed position, it is locked in this position via the pawl.
  • the locking bolt can then no longer leave the inlet slot of the rotary latch.
  • a latching surface also called a blocking surface
  • the pawl is therefore exposed to contact pressure in its locking position. This contact pressure must be overcome in order to move the pawl out of its locking position.
  • an actuating device can comprise a handle which, for example, can be pivoted for actuation. A pivoting movement of the handle is transmitted to a release lever via a linkage, a lever chain or a Bowden cable. If the release lever is pivoted in this way, then the pawl is moved directly or indirectly out of its locking position and the locking mechanism opens.
  • An electric lock could open unplanned due to an electrical fault, which can be associated with a safety risk for the occupants of a motor vehicle.
  • U.S. 5,909,918 A describes a lock that comprises an electric motor that can move a gear for opening the locking mechanism.
  • the gear has a cutout in its peripheral surface that defines a shoulder and interacts with a blocking member.
  • FIG. 1 to 3 a first embodiment of the lock.
  • the shoulder is straight and the blocking member is slidably arranged in a cavity and has a blocking tooth.
  • the blocking member can be moved into a blocking position, so that the blocking tooth is brought into engagement with the milled cutout of the gear wheel and abuts the shoulder.
  • the blocking member blocks a movement of the gear in such a way that the locking mechanism cannot be opened by the electric motor.
  • FIG. 4 and 5 a second embodiment of the lock.
  • the shoulder is concave and the blocking member is rotatably mounted and has an arcuate cutout in its convex circumferential surface which defines a concave release surface.
  • the blocking member can be rotated into a blocking position, so that the convex circumferential surface is brought into engagement with the cutout of the gearwheel and abuts the shoulder.
  • the blocking member blocks a movement of the gear in such a way that the locking mechanism cannot be opened by the electric motor.
  • EP 1 503 012 A1 describes a lock that has a locking mechanism consisting of a rotary latch and pawl for locking the rotary latch in a detent position, an electric motor with which the pawl can be moved out of its detent position, an output-side spur gear that the electric motor is able to move to open the locking mechanism , and a blocking lever.
  • the spur gear has a contour on which the blocking lever rests in its blocking position, thereby blocking movement of the spur gear in such a way that the locking mechanism cannot be opened by the electric motor.
  • the invention makes it possible to prevent a lock from being able to open unplanned.
  • the invention proposes a lock that has a ratchet with rotary latch and pawl for locking the rotary latch in a latching position, an electric drive, a drive element, in particular a wheel and / or a disc, which the drive can move to open the ratchet and has a recess and comprises a movable locking pawl.
  • the pawl In order to be able to open the lock, the pawl can be moved directly or indirectly out of its locking position with the drive. In a blocking position, the blocking pawl can prevent the electric drive from opening the lock.
  • it is necessary to set the electrical drive in motion and to move the blocking pawl from its blocking position to its non-blocking position.
  • the lock comprises a stop for the blocking pawl which is able to limit the movement of the blocking pawl into its blocking position in this way.
  • the drive can be, for example, an electric motor with a worm attached to the motor shaft.
  • the drive element can in particular be a wheel, gearwheel and / or a disk.
  • the blocking pawl In its blocking position, the blocking pawl extends into the recess and blocks or limits such a movement of the drive element by which the locking mechanism can be opened in an electrically driven manner. Reaching into the recess does not require any contact pressure, so that the blocking pawl can be moved out of its blocking position with particularly little effort.
  • the blocking pawl does not have to lock a rotary latch like a pawl and is therefore not exposed to any or at least no high contact pressure in its blocking position, it can be moved out of its blocking position with little effort, for example manually by operating a handle of an actuating device. Therefore, the lock can be opened as planned with little effort.
  • the locking pawl prevents the lock from opening unexpectedly in the event of an electrical fault that sets the electric drive in motion. The locking pawl thus increases security without having to accept a noticeably higher manual effort for the scheduled opening of a lock.
  • the blocking pawl is not exposed to any contact pressure when it is in its blocking position.
  • the blocking pawl can then be moved manually out of its blocking position with particularly little effort.
  • the lock can then be opened particularly easily as planned by actuating the actuating device.
  • the drive element is part of a transmission.
  • the drive element thus fulfills a double function, so that the lock can be manufactured with a small number of parts and consequently with little technical effort and little space required.
  • the stop is designed as a damping element that has a flexible, in particular elastic, surface. Noises are thus avoided when the blocking pawl is moved into its blocking position.
  • the surface of the stop consists for example of a plastic, in particular of an elastomer.
  • the stop is attached to the housing of the electric motor, which is part of the electric drive.
  • the housing of the electric motor can be stored robust enough to be suitable as a fastening for the stop. Production with little installation space is also possible in this way.
  • the microswitch or the sensor sets the electric drive for opening the locking mechanism in motion.
  • the blocking pawl thus fulfills a double function. On the one hand, it can prevent unplanned electrical opening of the locking mechanism. On the other hand, this sets the drive in motion for a scheduled opening of the locking mechanism.
  • the blocking pawl is preferably removed or moved out manually at the engagement area of the disk. This offers the advantage that in the event of a faulty current supply to the electric motor, a mechanical stop, in the form of the blocking pawl, is present, which prevents unintentional opening of the lock.
  • the blocking contour of the blocking pawl is moved closer by means of an internal actuation or an external actuation to open the lock, i.e. inside handle or outside handle on the motor vehicle.
  • the Figures 1 and 2 show a drive for electrically opening a motor vehicle lock.
  • the drive comprises an electric motor 1 with which the lock of the lock can be opened in an electrically driven manner.
  • the blocking position shown prevents the electric drive or electric motor 1 from being able to open the lock electrically.
  • the blocking pawl 2 can be rotated about its axis 3.
  • a worm 5 is attached to the motor shaft 4 of the electric motor 1.
  • a rotatably mounted gear 6 is rotated about its axis 7, in which the screw 5 engages.
  • a disk 8 is attached to the gear 7.
  • a projection 10 of the blocking pawl 2 extends into a recess 9 of the disc 8 and thus limits a counterclockwise rotational movement of the gear 6 and the disc 8, through which the locking mechanism of the lock could be opened electrically. Reaching into the recess 9 takes place without contact pressure, so that the blocking pawl 2 can be moved out of its blocking position with particularly little effort. The blocking pawl 2 is therefore not exposed to any contact pressure, especially in its blocking position.
  • Worm 5 and gear 6 form a gear.
  • the drive element in the form of the gear 6 with the disk 8 thus fulfills a double function.
  • Gear 6 and disk 8 can be designed in one piece or in several parts.
  • the stop 11 can be designed as a damping element which has an elastic surface.
  • the stop 11 is fastened to the housing of the electric motor 1.
  • microswitch 12 operated by the locking pawl 2 as in the Figure 2 is actuated as soon as the blocking pawl 2 is in its non-blocking position.
  • the microswitch 12 is then the electric motor 1 is set in motion to open the locking mechanism.
  • the blocking pawl 2 thus fulfills a double function.
  • the blocking pawl 2 further comprises a projection 13 which rests on the disc 8 when the blocking pawl 2 is as in FIG Figure 2 indicated in the non-blocking position.
  • the projection 13 limits the pivoting movement of the blocking pawl 2 in its non-blocking position.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein elektrisches Schloss für ein Kraftfahrzeug mit einem Gesperre gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an electric lock for a motor vehicle with a locking mechanism according to the preamble of claim 1.

Das Gesperre umfasst eine drehbar gelagerte Drehfalle für die Aufnahme eines Schließbolzens. Das Gesperre weist weiter eine Sperrklinke auf, mit der die Drehfalle verrastet werden kann. Die aus Metall und/ oder Kunststoff bestehenden Teile des Gesperres sind in der Regel auf einer grundsätzlich aus Metall bestehenden Schlossplatte schwenk- oder drehbar angebracht.The locking mechanism comprises a rotatably mounted rotary latch for receiving a locking bolt. The locking mechanism also has a pawl with which the rotary latch can be locked. The parts of the locking mechanism, which are made of metal and / or plastic, are usually attached to a lock plate that is basically made of metal so that they can pivot or rotate.

Die Drehfalle eines Kraftfahrzeugschlosses verfügt üblicherweise über einen durch Lastarm und Fangarm gebildeten gabelförmigen Einlaufschlitz, in den der Schließbolzen einer Fahrzeugtür oder Klappe, beispielsweise Motorhaube oder Kofferraumklappe, gelangt, wenn die Tür bzw. Klappe geschlossen wird. Der Schließbolzen verdreht dann die Drehfalle von einer Öffnungsstellung in eine Schließstellung. Hat die Drehfalle die Schließstellung erreicht, so wird sie in dieser Position über die Sperrklinke verrastet. Der Schließbolzen kann den Einlaufschlitz der Drehfalle dann nicht mehr verlassen. In der Raststellung ist eine Rastfläche, auch Sperrfläche genannt, der Drehfalle gegen eine Rastfläche der Sperrklinke gepresst. Die Sperrklinke ist daher in ihrer Raststellung einem Anpressdruck ausgesetzt. Dieser Anpressdruck muss überwunden werden, um die Sperrklinke aus ihrer Raststellung herauszubewegen.The rotary latch of a motor vehicle lock usually has a fork-shaped inlet slot formed by the load arm and catch arm, into which the locking bolt of a vehicle door or flap, for example an engine hood or trunk flap, enters when the door or flap is closed. The locking bolt then rotates the rotary latch from an open position to a closed position. When the rotary latch has reached the closed position, it is locked in this position via the pawl. The locking bolt can then no longer leave the inlet slot of the rotary latch. In the latching position, a latching surface, also called a blocking surface, of the catch is pressed against a latching surface of the pawl. The pawl is therefore exposed to contact pressure in its locking position. This contact pressure must be overcome in order to move the pawl out of its locking position.

Für ein Öffnen eines Gesperres wird die Sperrklinke durch Betätigen einer Betätigungseinrichtung aus ihrer Raststellung direkt oder indirekt heraus bewegt. Eine Betätigungseinrichtung kann einen Griff umfassen, der für ein Betätigen z.B. verschwenkbar ist. Eine Schwenkbewegung des Griffs wird über ein Gestänge, eine Hebelkette oder einen Bowdenzug an einen Auslösehebel übertragen. Wird der Auslösehebel auf diese Weise verschwenkt, so wird mittelbar oder unmittelbar die Sperrklinke aus ihrer Rastposition heraus bewegt und das Gesperre öffnet sich.To open a locking mechanism, the pawl is moved directly or indirectly out of its latching position by actuating an actuating device. An actuating device can comprise a handle which, for example, can be pivoted for actuation. A pivoting movement of the handle is transmitted to a release lever via a linkage, a lever chain or a Bowden cable. If the release lever is pivoted in this way, then the pawl is moved directly or indirectly out of its locking position and the locking mechanism opens.

Um die mechanische Kraft, die zum Öffnen der Tür oder Klappe notwendig ist, gering zu halten, gibt es Schlösser, bei denen die Drehfalle ein öffnendes Moment in die Sperrklinke im verrasteten Zustand einzuleiten vermag. Durch dieses öffnende Moment kann sich die Sperrklinke selbstständig aus ihrer Raststellung heraus bewegen, ohne dafür eine externe Kraft zur Überwindung des vorgenannten Anpressdrucks aufwenden zu müssen. Es gibt dann einen Blockadehebel, der die Sperrklinke im verrasteten Zustand des Gesperres blockiert. Eine Blockadefläche der Sperrklinke übt dann zwar ebenfalls einen Anpressdruck auf eine Blockadefläche des Blockadehebels aus. Dieser ist jedoch vergleichsweise gering. Für ein Öffnen des Gesperres kann daher der Blockadehebel aus seiner blockierenden Stellung mit relativ geringer Kraft heraus bewegt werden. Ist der Blockadehebel aus seiner Blockadestellung heraus bewegt worden, so bewegt sich anschließend die Sperrklinke selbstständig aufgrund des öffnenden Moments aus ihrer Raststellung heraus. Die Drehfalle kann sich nun in ihre Öffnungsstellung bewegen.In order to keep the mechanical force that is necessary to open the door or flap low, there are locks in which the rotary latch is able to introduce an opening moment into the pawl in the locked state. As a result of this opening moment, the pawl can move independently out of its latching position without having to use an external force to overcome the aforementioned contact pressure. There is then a blocking lever that blocks the pawl when the locking mechanism is locked. A blocking surface of the pawl then also exerts a contact pressure on a blocking surface of the blocking lever. However, this is comparatively low. To open the locking mechanism, the blocking lever can therefore be moved out of its blocking position with relatively little force. If the blocking lever has been moved out of its blocking position, the pawl then moves automatically out of its locking position due to the opening moment. The rotary latch can now move into its open position.

Um die mechanische Kraft, die zum Öffnen der Tür notwendig ist, auf ein Minimum zu reduzieren, gibt es Schlösser mit einem elektrischen Antrieb, mit dem die Sperrklinke aus ihrer Raststellung heraus bewegt wird. Der elektrische Antrieb kann durch Verschwenken eines Griffs der Betätigungseinrichtung manuell in Gang gesetzt werden. Ein solches sogenanntes elektrisches Schloss ist aus der Druckschrift DE 196 50 826 A1 bekannt.In order to reduce the mechanical force that is necessary to open the door to a minimum, there are locks with an electric drive with which the pawl is moved out of its locking position. The electric drive can be started manually by pivoting a handle of the actuating device. Such a so-called electric lock is from the document DE 196 50 826 A1 known.

Ein elektrisches Schloss könnte sich aufgrund einer elektrischen Störung unplanmäßig öffnen, was mit einem Sicherheitsrisiko für die Insassen eines Kraftfahrzeugs verbunden sein kann.An electric lock could open unplanned due to an electrical fault, which can be associated with a safety risk for the occupants of a motor vehicle.

DE 10 2012 003 743 A1 , DE 20 2012 001 961 U1 und US 5 909 918 A (zweite Ausführungsform) beschreiben jeweils ein Schloss gemäß dem Oberbegriff des Anspruchs 1. DE 10 2012 003 743 A1 , DE 20 2012 001 961 U1 and U.S. 5,909,918 A (second embodiment) each describe a lock according to the preamble of claim 1.

US 5 909 918 A beschreibt ein Schloss, das einen Elektromotor umfasst, der ein Zahnrad für ein Öffnen des Gesperres zu bewegen vermag, Das Zahnrad hat in seiner Umfangsfläche eine Ausfräsung, die eine Schulter definiert und mit einem Blockierglied zusammenwirkt. Dieses Dokument beschreibt in FIG. 1 bis 3 eine erste Ausführungsform des Schlosses. Bei dieser Ausführungsform verläuft die Schulter gerade und ist das Blockierglied verschiebbar in einem Hohlraum angeordnet und hat einen Blockierzahn. Das Blockierglied kann in eine blockierende Stellung verschoben werden, sodass der Blockierzahn in Eingriff mit der Ausfräsung des Zahnrads gebracht wird und an die Schulter anstößt. Hierdurch blockiert das Blockierglied eine Bewegung des Zahnrads derart, dass das Gesperre durch den Elektromotor nicht geöffnet werden kann. Dieses Dokument beschreibt in FIG. 4 und 5 eine zweite Ausführungsform des Schlosses. Bei dieser Ausführungsform verläuft die Schulter konkav und ist das Blockierglied drehbar gelagert und hat in seiner konvexen Umfangsfläche eine kreisbogenförmige Ausfräsung, die eine konkave Freigabeoberfläche definiert. Das Blockierglied kann in eine blockierende Stellung gedreht werden, sodass die konvexe Umfangsfläche in Eingriff mit der Ausfräsung des Zahnrads gebracht wird und an die Schulter anstößt. Hierdurch blockiert das Blockierglied eine Bewegung des Zahnrads derart, dass das Gesperre durch den Elektromotor nicht geöffnet werden kann. U.S. 5,909,918 A describes a lock that comprises an electric motor that can move a gear for opening the locking mechanism. The gear has a cutout in its peripheral surface that defines a shoulder and interacts with a blocking member. This document describes in FIG. 1 to 3 a first embodiment of the lock. In this embodiment the shoulder is straight and the blocking member is slidably arranged in a cavity and has a blocking tooth. The blocking member can be moved into a blocking position, so that the blocking tooth is brought into engagement with the milled cutout of the gear wheel and abuts the shoulder. As a result, the blocking member blocks a movement of the gear in such a way that the locking mechanism cannot be opened by the electric motor. This document describes in FIG. 4 and 5 a second embodiment of the lock. In this embodiment, the shoulder is concave and the blocking member is rotatably mounted and has an arcuate cutout in its convex circumferential surface which defines a concave release surface. The blocking member can be rotated into a blocking position, so that the convex circumferential surface is brought into engagement with the cutout of the gearwheel and abuts the shoulder. As a result, the blocking member blocks a movement of the gear in such a way that the locking mechanism cannot be opened by the electric motor.

EP 1 503 012 A1 beschreibt ein Schloss, das ein Gesperre aus Drehfalle und Sperrklinke für ein Verrasten der Drehfalle in einer Raststellung, einen Elektromotor, mit dem die Sperrklinke aus ihrer Raststellung heraus bewegt werden kann, ein ausgangsseitiges Stirnzahnrad, das der Elektromotor für ein Öffnen des Gesperres zu bewegen vermag, und einen Blockierhebel umfasst. Bei diesem Schloss weist das Stirnzahnrad eine Kontur auf, an der der Blockierhebel in seiner blockierenden Stellung anliegt und dadurch eine Bewegung des Stirnzahnrads derart blockiert, dass das Gesperre durch den Elektromotor nicht geöffnet werden kann. EP 1 503 012 A1 describes a lock that has a locking mechanism consisting of a rotary latch and pawl for locking the rotary latch in a detent position, an electric motor with which the pawl can be moved out of its detent position, an output-side spur gear that the electric motor is able to move to open the locking mechanism , and a blocking lever. In this lock, the spur gear has a contour on which the blocking lever rests in its blocking position, thereby blocking movement of the spur gear in such a way that the locking mechanism cannot be opened by the electric motor.

Vor diesem Hintergrund schlägt die Erfindung den Gegenstand des Anspruchs 1 vor. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Against this background, the invention proposes the subject matter of claim 1. Advantageous refinements are given in the subclaims.

Die Erfindung ermöglicht es, zu vermeiden, dass sich ein Schloss unplanmäßig zu öffnen vermag.The invention makes it possible to prevent a lock from being able to open unplanned.

Die Erfindung schlägt ein Schloss vor, das ein Gesperre mit Drehfalle und Sperrklinke für ein Verrasten der Drehfalle in einer Rastposition, einen elektrischen Antrieb, ein Antriebselement, insbesondere ein Rad und/oder eine Scheibe, das der Antrieb für ein Öffnen des Gesperres zu bewegen vermag und eine Ausnehmung aufweist, und eine bewegbare Blockierklinke umfasst. Um das Schloss öffnen zu können, kann mit dem Antrieb die Sperrklinke aus ihrer Raststellung mittelbar oder unmittelbar heraus bewegt werden. Die Blockierklinke vermag in einer blockierenden Stellung zu verhindern, dass der elektrische Antrieb das Schloss öffnen kann. Für ein elektrisches Öffnen des Gesperres ist es erforderlich, den elektrischen Antrieb in Gang zu setzen und die Blockierklinke von ihrer blockierenden Stellung in ihre nicht blockierende Stellung zu bewegen.The invention proposes a lock that has a ratchet with rotary latch and pawl for locking the rotary latch in a latching position, an electric drive, a drive element, in particular a wheel and / or a disc, which the drive can move to open the ratchet and has a recess and comprises a movable locking pawl. In order to be able to open the lock, the pawl can be moved directly or indirectly out of its locking position with the drive. In a blocking position, the blocking pawl can prevent the electric drive from opening the lock. For an electrical opening of the locking mechanism, it is necessary to set the electrical drive in motion and to move the blocking pawl from its blocking position to its non-blocking position.

Das Schloss umfasst erfindungsgemäß einen Anschlag für die Blockierklinke, der die Bewegung der Blockierklinke in ihre blockierende Stellung hinein derart zu begrenzen vermag.According to the invention, the lock comprises a stop for the blocking pawl which is able to limit the movement of the blocking pawl into its blocking position in this way.

Es wird so vermieden, dass die Blockierklinke durch ihre Bewegung in ihre blockierende Stellung einen schädigenden Impuls in mechanisch empfindliche Bereiche einer für das elektrische Öffnen vorhandenen Antriebskette einzuleiten vermag. Mechanisch empfindliche Teile können also durch den Anschlag vor Beschädigungen geschützt werden.This prevents the blocking pawl from being able to introduce a damaging impulse into mechanically sensitive areas of a drive chain that is present for electrical opening by moving it into its blocking position. Mechanically sensitive parts can therefore be protected from damage by the stop.

Der Antrieb kann zum Beispiel ein Elektromotor mit an der Motorwelle befestigter Schnecke sein. Das Antriebselement kann insbesondere ein Rad, Zahnrad und/oder eine Scheibe sein. In ihrer blockierenden Stellung reicht die Blockierklinke in die Ausnehmung hinein und blockiert oder begrenzt so eine solche Bewegung des Antriebselements, durch welche das Gesperre elektrisch angetrieben geöffnet werden kann. Das Hineinreichen in die Ausnehmung erfordert keinen Anpressdruck, sodass die Blockierklinke mit besonders geringem Kraftaufwand aus ihrer blockierenden Stellung herausbewegt werden kann.The drive can be, for example, an electric motor with a worm attached to the motor shaft. The drive element can in particular be a wheel, gearwheel and / or a disk. In its blocking position, the blocking pawl extends into the recess and blocks or limits such a movement of the drive element by which the locking mechanism can be opened in an electrically driven manner. Reaching into the recess does not require any contact pressure, so that the blocking pawl can be moved out of its blocking position with particularly little effort.

Da die Blockierklinke nicht wie eine Sperrklinke eine Drehfalle verrasten muss und daher keinem oder zumindest keinem hohen Anpressdruck in ihrer blockierenden Stellung ausgesetzt ist, kann diese mit geringem Kraftaufwand zum Beispiel manuell durch Betätigen eines Griffs einer Betätigungseinrichtung aus ihrer blockierenden Stellung heraus bewegt werden. Daher kann das Schloss mit geringem Kraftaufwand planmäßig geöffnet werden. Durch die Blockierklinke wird vermieden, dass sich das Schloss im Fall einer elektrischen Störung, die den elektrischen Antrieb in Gang setzt, unplanmäßig zu öffnen vermag. Die Blockierklinke erhöht damit die Sicherheit, ohne dafür einen merklich höheren manuellen Kraftaufwand für das planmäßige Öffnen eines Schlosses in Kauf nehmen zu müssen.Since the blocking pawl does not have to lock a rotary latch like a pawl and is therefore not exposed to any or at least no high contact pressure in its blocking position, it can be moved out of its blocking position with little effort, for example manually by operating a handle of an actuating device. Therefore, the lock can be opened as planned with little effort. The locking pawl prevents the lock from opening unexpectedly in the event of an electrical fault that sets the electric drive in motion. The locking pawl thus increases security without having to accept a noticeably higher manual effort for the scheduled opening of a lock.

In einer vorteilhaften Ausgestaltung der Erfindung ist die Blockierklinke keinem Anpressdruck ausgesetzt, wenn diese sich in ihrer blockierenden Stellung befindet. Dann kann die Blockierklinke mit besonders geringem Kraftaufwand aus ihrer blockierenden Stellung manuell heraus bewegt werden. Insgesamt kann das Schloss dann besonders leicht planmäßig durch Betätigen der Betätigungseinrichtung geöffnet werden.In an advantageous embodiment of the invention, the blocking pawl is not exposed to any contact pressure when it is in its blocking position. The blocking pawl can then be moved manually out of its blocking position with particularly little effort. Overall, the lock can then be opened particularly easily as planned by actuating the actuating device.

In einer Ausgestaltung der Erfindung ist das Antriebselement Teil eines Getriebes. Das Antriebselement erfüllt so eine Doppelfunktion, so dass das Schloss mit einer geringen Zahl an Teilen und folglich mit geringem technischen Aufwand und geringem Bedarf für Bauraum hergestellt werden kann.In one embodiment of the invention, the drive element is part of a transmission. The drive element thus fulfills a double function, so that the lock can be manufactured with a small number of parts and consequently with little technical effort and little space required.

In einer Ausgestaltung der Erfindung ist der Anschlag als Dämpfungselement ausgestaltet, der über eine nachgiebige, insbesondere elastische Oberfläche verfügt. Geräusche werden so vermieden, wenn die Blockierklinke in ihre blockierende Stellung hinein bewegt wird. Die Oberfläche des Anschlags besteht zum Beispiel aus einem Kunststoff, insbesondere aus einem Elastomer.In one embodiment of the invention, the stop is designed as a damping element that has a flexible, in particular elastic, surface. Noises are thus avoided when the blocking pawl is moved into its blocking position. The surface of the stop consists for example of a plastic, in particular of an elastomer.

In einer Ausgestaltung der Erfindung ist der Anschlag am Gehäuse des Elektromotors befestigt, der Teil des elektrischen Antriebs ist. Das Gehäuse des Elektromotors kann robust genug gelagert werden, um als Befestigung für den Anschlag geeignet zu sein. Auch ist so eine Herstellung mit geringem Bauraum möglich.In one embodiment of the invention, the stop is attached to the housing of the electric motor, which is part of the electric drive. The housing of the electric motor can be stored robust enough to be suitable as a fastening for the stop. Production with little installation space is also possible in this way.

In einer Ausgestaltung gibt es einen Mikroschalter oder einen Sensor, der durch die Blockierklinke betätigt bzw. aktiviert wird, sobald die Blockierklinke aus ihrer blockierenden Stellung heraus bewegt worden ist. Durch den Mikroschalter oder den Sensor wird in einer Ausgestaltung der elektrische Antrieb für ein Öffnen des Gesperres in Gang gesetzt. Die Blockierklinke erfüllt damit eine Doppelfunktion. Zum einen kann sie ein unplanmäßiges elektrisches Öffnen des Gesperres verhindern. Zum anderen setzt diese den Antrieb für ein planmäßiges Öffnen des Gesperres in Gang.In one embodiment there is a microswitch or a sensor which is actuated or activated by the blocking pawl as soon as the blocking pawl has been moved out of its blocking position. In one embodiment, the microswitch or the sensor sets the electric drive for opening the locking mechanism in motion. The blocking pawl thus fulfills a double function. On the one hand, it can prevent unplanned electrical opening of the locking mechanism. On the other hand, this sets the drive in motion for a scheduled opening of the locking mechanism.

Die Blockierklinke wird vorzugsweise manuell an dem Eingriffsbereich der Scheibe entfernt bzw. herausbewegt. Dies bietet den Vorteil, dass im Falle einer fehlerhaften Bestromung des Elektromotors ein mechanischer Anschlag, in Form der Blockierklinke, vorhanden ist, der ein unbeabsichtiges Öffnen des Schlosses verhindert ist. Das Heranbewegen der Blockierkontur der Blockierklinke erfolgt mittels einer Innenbetätigung oder einer Außenbetätigung zum Öffnen des Schlosses, d.h. innengriff oder Außengriff am Kraftfahrzeug.The blocking pawl is preferably removed or moved out manually at the engagement area of the disk. This offers the advantage that in the event of a faulty current supply to the electric motor, a mechanical stop, in the form of the blocking pawl, is present, which prevents unintentional opening of the lock. The blocking contour of the blocking pawl is moved closer by means of an internal actuation or an external actuation to open the lock, i.e. inside handle or outside handle on the motor vehicle.

Es zeigenShow it

Figur 1:Figure 1:
Antrieb für ein elektrisches Öffnen eines Schlosses mit Blockierklinke in blockierender Stellung;Drive for electrical opening of a lock with a locking pawl in a locking position;
Figur 2:Figure 2:
Antrieb für ein elektrisches Öffnen eines Schlosses mit Blockierklinke in nicht blockierender Stellung.Drive for the electrical opening of a lock with a blocking pawl in a non-blocking position.

Die Figuren 1 und 2 zeigen einen Antrieb für ein elektrisches Öffnen eines Kraftfahrzeugschlosses. Um das Schloss mit geringem Kraftaufwand öffnen zu können, umfasst der Antrieb einen Elektromotor 1, mit dem das Gesperre des Schlosses elektrisch angetrieben geöffnet werden kann. Es gibt eine drehbar gelagerte Blockierklinke 2, die in ihrer in der Figur 1 gezeigten blockierenden Stellung verhindert, dass der elektrische Antrieb bzw. Elektromotor 1 das Schloss elektrisch öffnen kann. Die Blockierklinke 2 ist um ihre Achse 3 drehbar.The Figures 1 and 2 show a drive for electrically opening a motor vehicle lock. In order to be able to open the lock with little effort, the drive comprises an electric motor 1 with which the lock of the lock can be opened in an electrically driven manner. There is a rotatably mounted locking pawl 2, which is in its in the Figure 1 The blocking position shown prevents the electric drive or electric motor 1 from being able to open the lock electrically. The blocking pawl 2 can be rotated about its axis 3.

An der Motorwelle 4 des Elektromotors 1 ist eine Schnecke 5 befestigt. Durch Drehen der Welle 4 und damit durch Drehen der Schnecke 5 wird ein drehbar gelagertes Zahnrad 6 um seine Achse 7 gedreht, in welches die Schnecke 5 eingreift. An dem Zahnrad 7 ist eine Scheibe 8 befestigt. In ihrer blockierenden Stellung reicht ein Vorsprung 10 der Blockierklinke 2 in eine Ausnehmung 9 der Scheibe 8 hinein und begrenzt so eine Drehbewegung des Zahnrads 6 und der Scheibe 8 im Gegenuhrzeigersinn, durch welche das Gesperre des Schlosses elektrisch angetrieben geöffnet werden könnte. Das Hineinreichen in die Ausnehmung 9 erfolgt ohne Anpressdruck, so dass die Blockierklinke 2 mit besonders geringem Kraftaufwand aus ihrer blockierenden Stellung heraus bewegt werden kann. Die Blockierklinke 2 ist also vor allem auch in ihrer blockierenden Stellung keinem Anpressdruck ausgesetzt.A worm 5 is attached to the motor shaft 4 of the electric motor 1. By rotating the shaft 4 and thus by rotating the worm 5, a rotatably mounted gear 6 is rotated about its axis 7, in which the screw 5 engages. A disk 8 is attached to the gear 7. In its blocking position, a projection 10 of the blocking pawl 2 extends into a recess 9 of the disc 8 and thus limits a counterclockwise rotational movement of the gear 6 and the disc 8, through which the locking mechanism of the lock could be opened electrically. Reaching into the recess 9 takes place without contact pressure, so that the blocking pawl 2 can be moved out of its blocking position with particularly little effort. The blocking pawl 2 is therefore not exposed to any contact pressure, especially in its blocking position.

Schnecke 5 und Zahnrad 6 bilden ein Getriebe. Das Antriebselement in Form des Zahnrads 6 mit der Scheibe 8 erfüllt so eine Doppelfunktion. Zahnrad 6 und Scheibe 8 können einstückig oder mehrteilig ausgebildet sein.Worm 5 and gear 6 form a gear. The drive element in the form of the gear 6 with the disk 8 thus fulfills a double function. Gear 6 and disk 8 can be designed in one piece or in several parts.

Es gibt einen Anschlag 11 für die Blockierklinke 2, der die Bewegung der Blockierklinke 2 in ihre blockierende Stellung hinein zu begrenzen vermag. Dies verdeutlicht die Figur 1. Es wird so vermieden, dass die Blockierklinke durch ihre Bewegung in ihre blockierende Stellung einen schädigenden Impuls in die Scheibe 8 mit dem Zahnrad 6, also in mechanisch empfindliche Bereiche einer Antriebskette, einzuleiten vermag.There is a stop 11 for the blocking pawl 2, which is able to limit the movement of the blocking pawl 2 into its blocking position. This illustrates the Figure 1 . This prevents the blocking pawl from being able to introduce a damaging impulse into the disk 8 with the gearwheel 6, that is to say into mechanically sensitive areas of a drive chain, through its movement into its blocking position.

Der Anschlag 11 kann als Dämpfungselement ausgestaltet sein, der über eine elastische Oberfläche verfügt. Der Anschlag 11 ist in diesem Ausführungsbeispiel am Gehäuse des Elektromotors 1 befestigt.The stop 11 can be designed as a damping element which has an elastic surface. In this exemplary embodiment, the stop 11 is fastened to the housing of the electric motor 1.

Es gibt einen Mikroschalter 12, der durch die Blockierklinke 2 wie in der Figur 2 gezeigt betätigt wird, sobald die Blockierklinke 2 sich in ihrer nicht blockierenden Stellung befindet. Durch den Mikroschalter 12 wird dann der Elektromotor 1 für ein Öffnen des Gesperres in Gang gesetzt. Die Blockierklinke 2 erfüllt damit eine Doppelfunktion.There is a microswitch 12 operated by the locking pawl 2 as in the Figure 2 is actuated as soon as the blocking pawl 2 is in its non-blocking position. The microswitch 12 is then the electric motor 1 is set in motion to open the locking mechanism. The blocking pawl 2 thus fulfills a double function.

Die Blockierklinke 2 umfasst ferner einen Vorsprung 13, der an der Scheibe 8 anliegt, wenn sich die Blockierklinke 2 wie in der Figur 2 angedeutet in nicht blockierender Stellung befindet. Der Vorsprung 13 begrenzt die Schwenkbewegung der Blockierklinke 2 in ihrer nicht blockierende Stellung hinein.The blocking pawl 2 further comprises a projection 13 which rests on the disc 8 when the blocking pawl 2 is as in FIG Figure 2 indicated in the non-blocking position. The projection 13 limits the pivoting movement of the blocking pawl 2 in its non-blocking position.

Wird ausgehend von der in der Figur 1 gezeigten Stellung die Blockierklinke 2 im Uhrzeigersinn um ihre Achse 3 verschwenkt, so betätigt diese schließlich den Mikroschalter 12. Hierdurch wird der Elektromotor 1 in Gang gesetzt. Als Folge werden das Zahnrad 6 und damit auch die Scheibe 8 entgegengesetzt zum Uhrzeigersinn gedreht. Ein Mitnehmer 14 der Scheibe 8 erfasst so schließlich einen Arm 15 eines drehbar gelagerten Auslösehebels 16 und verschwenkt diesen um seine Achse 17 im Uhrzeigersinn. Hierdurch wird die Sperrklinke des Schlossgesperres aus ihrer Raststellung heraus bewegt und so das Schloss geöffnet.Is based on the in the Figure 1 The position shown, the blocking pawl 2 is pivoted clockwise about its axis 3, then this finally actuates the microswitch 12. This sets the electric motor 1 in motion. As a result, the gear 6 and thus also the disk 8 are rotated counterclockwise. A driver 14 of the disk 8 finally grips an arm 15 of a rotatably mounted release lever 16 and pivots it clockwise about its axis 17. As a result, the pawl of the lock mechanism is moved out of its locking position and the lock is opened.

BezugszeichenlisteList of reference symbols

1:1:
ElektromotorElectric motor
2:2:
BlockierklinkeLocking latch
3:3:
Achse der BlockierklinkeAxis of the locking pawl
4:4:
Welle des ElektromotorsElectric motor shaft
5:5:
Schnecke an der MotorwelleWorm on the motor shaft
6:6:
Zahnradgear
7:7:
Achse des ZahnradsAxis of the gear
8:8th:
Scheibedisc
9:9:
AusnehmungRecess
10:10:
Vorsprung der BlockierklinkeProjection of the locking pawl
11:11:
Anschlag für die BlockierklinkeStop for the locking pawl
12:12:
MikroschalterMicroswitch
13:13:
Vorsprung der BlockierklinkeProjection of the locking pawl
14:14:
MitnehmerCarrier
15:15:
AuslösehebelarmRelease lever arm
16:16:
AuslösehebelRelease lever
17:17:
Achse des AuslösehebelsAxis of the release lever

Claims (8)

  1. Latch comprising a locking mechanism consisting of a catch and a pawl for ratcheting the catch in a ratchet position, an electric drive (1) by means of which the pawl can be moved out of its ratchet position, a movable blocking pawl (2) being provided which, in a blocking position, can prevent the electric drive (1) from being able to open the latch, the electric drive (1) being able to move a drive element for opening the locking mechanism and, in its blocking position, the blocking pawl (2) extending into a recess (9) in the drive element and thereby blocking or limiting movement of the drive element in such a way that the locking mechanism cannot be opened by the electric drive (1), the blocking pawl (2) being rotatable about an axis (3), characterized in that a stop (11) for the blocking pawl (2) is provided, which stop can limit the movement of the blocking pawl (2) into its blocking position.
  2. Latch according to claim 1, characterized in that the blocking pawl (2) is not subject to contact pressure when it is in its blocking position.
  3. Latch according to the preceding claim, characterized in that the drive element (6, 8) is part of a gear mechanism.
  4. Latch according to the preceding claim, characterized in that the stop (11) is designed as a damping element.
  5. Latch according to the preceding claim, characterized in that the surface of the stop (11) consists of a plastics material, in particular an elastomer.
  6. Latch according to either of the two preceding claims, characterized in that the stop (11) is attached to the electric drive (1).
  7. Latch according to any of the preceding claims, characterized in that a sensor, in particular a microswitch (12), is provided, which can be activated or operated by the blocking pawl (2).
  8. Latch according to any of the preceding claims, characterized in that a release lever (16) can be pivoted by the electric drive (1).
EP15736380.5A 2014-05-12 2015-05-08 Motor vehicle lock Active EP3143226B1 (en)

Applications Claiming Priority (2)

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DE102014006745 2014-05-12
PCT/DE2015/000222 WO2015172761A1 (en) 2014-05-12 2015-05-08 Motor vehicle lock

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EP3143226B1 true EP3143226B1 (en) 2020-09-23

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CN (1) CN106489014B (en)
DE (1) DE112015002256A5 (en)
WO (1) WO2015172761A1 (en)

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CN109339599B (en) * 2016-01-29 2021-03-12 开开特股份公司 Motor vehicle lock
DE102016109326A1 (en) 2016-05-20 2017-11-23 Kiekert Ag System with motor vehicle locking devices
DE102016109325A1 (en) 2016-05-20 2017-11-23 Kiekert Ag Motor vehicle locking system
DE102016111251A1 (en) 2016-06-20 2017-12-21 Kiekert Ag Motor vehicle locking system
US11060328B2 (en) * 2018-05-22 2021-07-13 Kiekert Ag Latching device for automotive applications
DE102019100593A1 (en) * 2019-01-11 2020-07-16 Kiekert Aktiengesellschaft Motor vehicle lock
US12018517B2 (en) 2022-03-10 2024-06-25 Brose Schließsysteme GmbH & Co. Kommanditgesellschaft, Wuppertal Motor vehicle latch assembly with manual release

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DE19650826B4 (en) 1996-12-07 2005-12-22 Kiekert Ag Electric motor vehicle door lock
US5909918A (en) 1997-06-27 1999-06-08 General Motors Corporation Valet block out for deck lid latch
EP1457625A3 (en) * 2003-03-08 2008-08-27 Brose Schliesssysteme GmbH & Co. KG Vehicle lock with electrically assisted opening
US6729072B1 (en) * 2003-03-13 2004-05-04 Arvinmeritor Technology Llc Integral latch and drive system for a powered sliding door
DE10336050A1 (en) * 2003-08-01 2005-02-24 Kiekert Ag Motor vehicle door lock
CN101184900B (en) * 2005-03-23 2012-06-13 马格纳·克劳祖雷斯有限公司 Global side door latch
EP3406831B1 (en) * 2010-02-05 2019-06-26 Magna Closures SpA Vehicular latch with double pawl arrangement
DE102012003743A1 (en) * 2012-02-28 2013-08-29 Kiekert Aktiengesellschaft Motor vehicle door lock
DE202012001961U1 (en) 2012-02-28 2013-05-29 Kiekert Aktiengesellschaft Motor vehicle door lock
DE202012001960U1 (en) * 2012-02-28 2013-05-29 Kiekert Aktiengesellschaft Motor vehicle door lock
EP2653639B1 (en) * 2012-04-17 2014-09-24 Magna Closures SpA An electrical vehicle latch
DE102012111288A1 (en) * 2012-11-22 2014-05-22 Kiekert Aktiengesellschaft Motor vehicle door lock

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CN106489014A (en) 2017-03-08
DE112015002256A5 (en) 2017-07-06
WO2015172761A1 (en) 2015-11-19
US20170114576A1 (en) 2017-04-27
EP3143226A1 (en) 2017-03-22
CN106489014B (en) 2019-07-19
US11274474B2 (en) 2022-03-15

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