EP1617021B1 - Motor vehicle lock - Google Patents

Motor vehicle lock Download PDF

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Publication number
EP1617021B1
EP1617021B1 EP20050011821 EP05011821A EP1617021B1 EP 1617021 B1 EP1617021 B1 EP 1617021B1 EP 20050011821 EP20050011821 EP 20050011821 EP 05011821 A EP05011821 A EP 05011821A EP 1617021 B1 EP1617021 B1 EP 1617021B1
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EP
European Patent Office
Prior art keywords
locking
drive element
latch
lever
aid
Prior art date
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EP20050011821
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German (de)
French (fr)
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EP1617021A1 (en
Inventor
Markus Zillert
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Brose Schliesssysteme GmbH and Co KG
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Brose Schliesssysteme GmbH and Co KG
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Publication of EP1617021A1 publication Critical patent/EP1617021A1/en
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    • 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
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor

Definitions

  • the present invention relates to a motor vehicle lock having the features of the preamble of claim 1.
  • the motor vehicle lock is particularly suitable as a side door lock, but can be used as a sliding door lock, rear door lock, tailgate lock or hood lock use.
  • motor vehicle locks are increasingly equipped with a closing auxiliary function.
  • the auxiliary closing function ensures that the motor vehicle lock is transferred from an intermediate position out motor to the fully closed position.
  • the intermediate position corresponds in a motor vehicle lock with latch and pawl usually the prelocking the latch.
  • a closing auxiliary drive and a closing auxiliary lever to adjust the latch of the motor vehicle lock from a prelocking in a main closed position.
  • this closing operation of the closing auxiliary lever comes into engagement with a arranged on the lock latch molding, pushes the latch in the main closed position and finally remains in a position in which the auxiliary closing lever blocks the return of the latch. Only when lifting the pawl, so when the vehicle door is to be opened, and the closing auxiliary lever is disengaged from the latch.
  • the lifting of the auxiliary closing lever ie the decoupling of the auxiliary closing lever of the latch, is here directly connected to the lifting of the pawl. This is realized by an additional lever mechanism, which requires a high design effort.
  • a motor vehicle lock is known ( DE 43 11 785 A1 ), in which the pawl itself is used as a closing auxiliary lever.
  • a lever mechanism is provided, on the one hand allows the adjustment of the latch in the main closing position by means of the pawl and on the other hand, the lifting of the pawl itself.
  • Such a construction is expensive and has disadvantages with respect to a flexible arrangement of the various components in the motor vehicle lock.
  • the known motor vehicle lock ( DE 203 03 196 U1 ), from which the present invention proceeds, is also equipped with a motorized closing aid.
  • the closing aid shows a closing auxiliary drive with a pivotable drive element and a pivotally hinged to the drive element closing auxiliary lever.
  • the closing auxiliary lever has a slotted guide, which can be brought into engagement with an intermediate element. The slide guide thus causes a motion guide of the auxiliary closing lever such that the auxiliary closing lever is coupled at the beginning of the closing operation with the latch and is decoupled from the latch at the end of the closing process.
  • a disadvantage of the motor vehicle lock forming the starting point is the fundamental susceptibility to failure of the slide guide described. This can lead to frictional losses or jamming. Furthermore, it is disadvantageous that the components required here, in particular the slotted guide itself, are expensive to manufacture. Finally, it should be noted that in principle the necessary coupling between the auxiliary closing lever and the intermediate element is to be considered in the construction, which leads to undesirable structural limitations.
  • the present invention is based on the problem to design the known motor vehicle lock such and further, that a high reliability with high design flexibility and is guaranteed with little effort.
  • the auxiliary closing drive forms with the auxiliary closing lever to some extent a closed system, which can fulfill its function - apart from the coupling with the latch - largely independent of other components of the motor vehicle lock. This leads to a constructive decoupling and as a result to particularly simple structural solutions.
  • the stop and the counter stop are engaged with each other and block the pivoting of the auxiliary closing lever relative to the drive element in one direction. This initially ensures that the auxiliary closing lever can not interfere with the movement of the latch, as long as this is not desirable.
  • the closing aid is now preferably carried out so that the closing auxiliary lever during closing by the movement cycle of the drive element and engaged with each stop and counter-stop initially without pivoting relative to the drive element comes into contact with the latch and then with a pivoting relative to the drive element, the corresponding adjustment the latch causes.
  • stop and counter-stop are designed so that they come so close to each other during the closing operation and after the adjustment of the latch by the movement cycle of the drive element, that the uncoupling of the auxiliary closing lever takes place.
  • Fig. 1 shows a motor vehicle lock 1 with a latch 2 and a lock latch 2 in a main catch 3 and a pre-latch 4 holding pawl 5.
  • the latch 2 is in a prelocking position, in which the latch 2 in the pre-rest 4 is held by the pawl 5.
  • the main closed position the latch 2 is held by the pawl 5 in the main catch 3.
  • a prelocking is not necessarily required. Instead, a defined intermediate position, from which the latch 2 is then adjustable in its main closed position is sufficient. In the presently described embodiment, however, this intermediate position corresponds to the prelocking position.
  • the motor vehicle lock 1 is equipped with a closing aid 6 for adjusting the latch 2 in the Hauptsch Anlagenstellüng. In this case, both a motor and a manual operation of the closing aid can be provided.
  • the closing operation of the latch 2 comprises a cycle of movement of the drive element 8, which causes the adjustment of the latch 2 in the main closing position and then the uncoupling of the auxiliary closing lever 9 of the latch 2.
  • the adjustment of the latch 2 in the main closing position in the present case also includes the adjustment of the latch 2 initially in an overstroke position (Fig. 3) with the subsequent falling back of the latch 2 in the main closed position.
  • the closing process is completed only after the uncoupling of the auxiliary closing lever 9 of the latch 2.
  • the closing aid 6 is designed here so that the movement cycle of the drive element 8 causes the coupling of the auxiliary closing lever 9 with the latch 2 before the adjustment of the latch 2 in the main closing position.
  • the movement cycle of the drive element 8 during the closing operation preferably comprises a pivoting of the drive element 8 in both pivoting directions.
  • the coupling of the auxiliary closing lever 9 with the latch 2 and the adjustment of the lock catch 2 in the main closing position with the pivoting of the drive element 8 in a pivoting direction - in Fig. 1 litisherum - connected and uncoupling with the pivoting of the drive element 8 in the opposite pivoting direction - in Fig. 1 linksherum - connected.
  • the entire closing operation is preferably completely motorized. But it is also possible that the provision of the drive element 8 and thus the decoupling of the auxiliary closing lever 9 is realized by spring force in conjunction with a freewheel of the drive element 8.
  • the auxiliary closing lever 9 is preferably pivotably connected to the drive element 8 in the manner of an eccentric at a location spaced from the pivot axis 10 of the drive element 8.
  • the drive element 8 has a stop 11 and the auxiliary closing lever 9 has a counter-stop 12.
  • the two stops 11, 12 are at the beginning of the closing operation with each other engaged and block pivoting of the auxiliary closing lever 9 relative to the drive member 8 in one direction, here in the direction of the coupled position of the auxiliary closing lever.
  • the closing aid 6 is preferably designed so that the closing auxiliary lever 9 during closing by the movement cycle of the drive element 8 and with mutually engaged stop 11 and counter-stop 12 initially - without pivoting relative to the drive element 8 - comes into contact with the latch 2. This is connected to a pivoting of the drive element 8 in Fig. 1 on the right. Subsequently, the further pivoting of the drive element 8 causes pivoting of the auxiliary closing lever 9 relative to the drive element 8, the adjustment of the latch 2 in the main closed position.
  • Stop 11 and counter-stop 12 are arranged so that they engage in the closing operation and after the adjustment of the latch 2 in the main closing position by the movement cycle of the drive member 8 with each other in such a way that thereby the uncoupling of the auxiliary closing lever 9 takes place from the latch 2.
  • the drive element 8 - in Fig. 3 on the left - so long pivots until stop 11 and counter-stop 12 in turn come into engagement with each other.
  • the further pivoting of the drive element 8 then has the blokkierenden engagement of the stops 11, 12 a common pivoting of the drive element 8 and closing auxiliary lever 9 result, until finally the starting position (Fig. 1) is reached.
  • the drive element 8 and the auxiliary closing lever 9 are biased in the blocking position one another. This is preferably done by a correspondingly arranged spring.
  • the bias stop 11 and counter-stop 12 are so long in blocking engagement, as long as there is no force acting against the bias. Such a force comes only to bear when the auxiliary closing lever 9 is coupled to the latch 2 or as long as the auxiliary closing lever 9 is coupled to the latch 2.
  • the drive element 8, the auxiliary closing lever 9 and the latch 2 form a four-joint kinematics during the closing process. This is particularly advantageous in terms of actuation forces for adjusting the lock latch 2 in the main closed position, as can be achieved by a four-joint kinematics with little effort, a favorable gear ratio.
  • the kinematics between the drive element 8 and the latch 2 is called, in which four joints are involved during the closing process. These are here the pivot axis 10 of the drive element 8, the articulation point of the auxiliary closing lever 9 on the drive element 8, the coupling of the auxiliary closing lever 9 with the latch 2 and the pivot axis of the latch 2.
  • the four-joint kinematics is not mandatory, it can instead other kinematic chains be provided between the drive element 8 and the latch 2.
  • a kinematics with more than four joints can be provided, which may be more favorable in terms of the transmission ratio, but requires greater design effort.
  • the auxiliary closing lever 9 has a mandrel 13 and the latch 2 has a molding 14.
  • the molding 14 has for this purpose a substantially radially aligned portion 15, with which the mandrel 13 of the auxiliary closing lever 9 during pivoting of the latch 2 for power transmission is engaged.
  • the molding 14 has a substantially arcuate portion 16, to which the closing auxiliary lever 9 approaches during the closing operation.
  • the closing auxiliary lever 9 is also equipped with a curved section 17 corresponding to the section 16 of the molding 14.
  • the auxiliary closing drive 7 has here and preferably an electric motor for adjusting the drive element 8.
  • an electric motor for adjusting the drive element 8.
  • a pneumatic drive or the like may be provided for the drive-technical coupling, preferably with the motor, the drive element 8 preferably has a section 18 designed as a toothed rim.
  • the auxiliary closing drive 7 may also have a Bowden cable, so that the drive element 8 is pivoted as described above by operating the Bowden cable.
  • the pivoting of the drive element 8 can be realized in that the Bowden cable is directly coupled to the drive element 8 itself, or that the Bowden cable indirectly, for example via a transmission, is coupled to the drive element 8.
  • the Bowden cable itself is operated by a motor drive, or manually.

Abstract

The lock has a latch. A ratchet is provided for holding the latch in a main catch. A closing element has an auxiliary closing drive with a pivoting driving element and an auxiliary closing lever which is pivotally coupled to the driving element. The latch is movable by the auxiliary closing drive via the driving element and via the auxiliary closing lever into a fully latched position in a closing process comprising a cycle of movements of the driving element. The driving element is engageable with the auxiliary closing lever in a manner decoupling the auxiliary closing lever from the latch due to the cycle of movements of the driving element after the latch moves into the fully latched position. The ratchet holds the latch in a preliminary catch. The cycle of movements of the driving element for moving the latch into the fully latched position first causes coupling of the auxiliary closing lever to the latch.

Description

Die vorliegende Erfindung betrifft ein Kraftfahrzeugschloß mit den Merkmalen des Oberbegriffs von Anspruch 1. Das Kraftfahrzeugschloß ist in besonderem Maße als Seitentürschloß geeignet, kann aber als Schiebetürschloß, Hecktürschloß, Heckklappenschloß oder Haubenschloß Verwendung finden.The present invention relates to a motor vehicle lock having the features of the preamble of claim 1. The motor vehicle lock is particularly suitable as a side door lock, but can be used as a sliding door lock, rear door lock, tailgate lock or hood lock use.

Zur Komforterhöhung und um reproduzierbar einen optimalen Schließvorgang gewährleisten zu können, werden Kraftfahrzeugschlösser zunehmend mit einer Schließhilfsfunktion ausgestattet. Die Schließhilfsfunktion sorgt dafür, daß das Kraftfahrzeugschloß aus einer Zwischenstellung heraus motorisch in die vollständig geschlossene Stellung überführt wird. Die Zwischenstellung entspricht bei einem Kraftfahrzeugschloß mit Schloßfalle und Sperrklinke in der Regel der Vorschließstellung der Schloßfalle.For comfort increase and to ensure reproducible optimal closing operation, motor vehicle locks are increasingly equipped with a closing auxiliary function. The auxiliary closing function ensures that the motor vehicle lock is transferred from an intermediate position out motor to the fully closed position. The intermediate position corresponds in a motor vehicle lock with latch and pawl usually the prelocking the latch.

Bei einem bekannten Kraftfahrzeugschloß ( DE 44 27 213 C2 ) ist zur Realisierung der Schließhilfsfunktion ein Schließhilfsantrieb und ein Schließhilfshebel vorgesehen, um die Schloßfalle des Kraftfahrzeugschlosses von einer Vorschließstellung in eine Hauptschließstellung zu verstellen. Bei diesem Schließvorgang kommt der Schließhilfshebel in Eingriff mit einer an der Schloßfalle angeordneten Ausformung, drückt die Schloßfalle in die Hauptschließstellung und verbleibt schließlich in einer Stellung, in der der Schließhilfshebel die Rückstellung der Schloßfalle blockiert. Erst beim Ausheben der Sperrklinke, also wenn die Kraftfahrzeugtür geöffnet werden soll, kommt auch der Schließhilfshebel außer Eingriff mit der Schloßfalle. Das Ausheben des Schließhilfshebels, also das Entkuppeln des Schließhilfshebels von der Schloßfalle, ist hier unmittelbar mit dem Ausheben der Sperrklinke verbunden. Dies ist durch eine zusätzliche Hebelmechanik realisiert, die einen hohen konstruktiven Aufwand erfordert.In a known motor vehicle lock ( DE 44 27 213 C2 ) is provided for the realization of the auxiliary closing function, a closing auxiliary drive and a closing auxiliary lever to adjust the latch of the motor vehicle lock from a prelocking in a main closed position. In this closing operation of the closing auxiliary lever comes into engagement with a arranged on the lock latch molding, pushes the latch in the main closed position and finally remains in a position in which the auxiliary closing lever blocks the return of the latch. Only when lifting the pawl, so when the vehicle door is to be opened, and the closing auxiliary lever is disengaged from the latch. The lifting of the auxiliary closing lever, ie the decoupling of the auxiliary closing lever of the latch, is here directly connected to the lifting of the pawl. This is realized by an additional lever mechanism, which requires a high design effort.

Ferner ist ein Kraftfahrzeugschloß bekannt ( DE 43 11 785 A1 ), bei dem die Sperrklinke selbst als Schließhilfshebel eingesetzt wird. Hier ist eine Hebelmechanik vorgesehen, die einerseits das Verstellen der Schloßfalle in die Hauptschließstellung mittels der Sperrklinke und andererseits das Ausheben der Sperrklinke selbst ermöglicht. Eine solche Konstruktion ist aufwendig und weist Nachteile in Bezug auf eine flexible Anordnung der diversen Bauteile in dem Kraftfahrzeugschloß auf.Furthermore, a motor vehicle lock is known ( DE 43 11 785 A1 ), in which the pawl itself is used as a closing auxiliary lever. Here, a lever mechanism is provided, on the one hand allows the adjustment of the latch in the main closing position by means of the pawl and on the other hand, the lifting of the pawl itself. Such a construction is expensive and has disadvantages with respect to a flexible arrangement of the various components in the motor vehicle lock.

Das bekannte Kraftfahrzeugschloß ( DE 203 03 196 U1 ), von dem die vorliegende Erfindung ausgeht, ist ebenfalls mit einer motorischen Schließhilfe ausgestattet. Die Schließhilfe zeigt einen Schließhilfsantrieb mit einem schwenkbaren Antriebselement und einen an dem Antriebselement schwenkbar angelenkten Schließhilfshebel. Der Schließhilfshebel weist eine Kulissenführung auf, die in Eingriff mit einem Zwischenelement bringbar ist. Die Kulissenführung bewirkt damit eine Bewegungsführung des Schließhilfshebels derart, daß der Schließhilfshebel zu Beginn des Schließvorgangs mit der Schloßfalle gekuppelt wird und zum Ende des Schließvorgangs von der Schloßfalle entkoppelt wird.The known motor vehicle lock ( DE 203 03 196 U1 ), from which the present invention proceeds, is also equipped with a motorized closing aid. The closing aid shows a closing auxiliary drive with a pivotable drive element and a pivotally hinged to the drive element closing auxiliary lever. The closing auxiliary lever has a slotted guide, which can be brought into engagement with an intermediate element. The slide guide thus causes a motion guide of the auxiliary closing lever such that the auxiliary closing lever is coupled at the beginning of the closing operation with the latch and is decoupled from the latch at the end of the closing process.

Nachteilig bei dem den Ausgangspunkt bildenden Kraftfahrzeugschloß ist die grundsätzliche Fehleranfälligkeit der beschriebenen Kulissenführung. Hier kann es zu Reibverlusten oder Verklemmungen kommen. Ferner ist nachteilig, daß die hier benötigten Komponenten, insbesondere die Kulissenführung selbst, aufwendig zu fertigen sind. Schließlich darf darauf hingewiesen werden, daß bei der Konstruktion grundsätzlich die notwendige Kopplung zwischen dem Schließhilfshebel und dem Zwischenelement zu berücksichtigen ist, was zu ungewünschten konstruktiven Beschränkungen führt.A disadvantage of the motor vehicle lock forming the starting point is the fundamental susceptibility to failure of the slide guide described. This can lead to frictional losses or jamming. Furthermore, it is disadvantageous that the components required here, in particular the slotted guide itself, are expensive to manufacture. Finally, it should be noted that in principle the necessary coupling between the auxiliary closing lever and the intermediate element is to be considered in the construction, which leads to undesirable structural limitations.

Der vorliegenden Erfindung liegt das Problem zugrunde, das bekannte Kraftfahrzeugschloß derart auszugestalten und weiterzubilden, daß eine hohe Funktionssicherheit bei hoher konstruktiver Flexibilität und mit geringem Aufwand gewährleistet ist.The present invention is based on the problem to design the known motor vehicle lock such and further, that a high reliability with high design flexibility and is guaranteed with little effort.

Das obige Problem wird bei einem Kraftfahrzeugschloß mit den Merkmalen des Oberbegriffs von Anspruch 1 durch die Merkmale des kennzeichnenden Teils von Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.The above problem is solved in a motor vehicle lock with the features of the preamble of claim 1 by the features of the characterizing part of claim 1. Advantageous developments are the subject of the dependent claims.

Wesentlich ist die Erkenntnis, daß eine geeignete Kopplung zwischen Antriebselement und Schließhilfshebel ursächlich dafür sein kann, daß der Bewegungszyklus des Antriebselements nach der Verstellung der Schloßfalle in die Hauptschließstellung das Entkuppeln des Schließhilfshebels von der Schloßfalle bewirkt.It is essential to realize that a suitable coupling between the drive element and closing auxiliary lever can be the cause of the fact that the movement cycle of the drive element after the adjustment of the latch in the main closing position causes the uncoupling of the closing auxiliary lever of the lock latch.

Der Schließhilfsantrieb bildet mit dem Schließhilfshebel gewissermaßen ein abgeschlossenes System, das seine Funktion - abgesehen von der Kupplung mit der Schloßfalle - weitgehend unabhängig von weiteren Komponenten des Kraftfahrzeugschlosses erfüllen kann. Dies führt zu einer konstruktiven Entkopplung und im Ergebnis zu besonders einfachen konstruktiven Lösungen.The auxiliary closing drive forms with the auxiliary closing lever to some extent a closed system, which can fulfill its function - apart from the coupling with the latch - largely independent of other components of the motor vehicle lock. This leads to a constructive decoupling and as a result to particularly simple structural solutions.

Eine besonders einfache und damit robuste konstruktive Ausgestaltung zeigt sich dann, wenn der Schließhilfshebel an einer von der Schwenkachse des Antriebselements beabstandeten Stelle nach Art eines Exzenters an dem Antriebselements angelenkt ist. Dann ist nämlich lediglich ein Anschlag am Antriebselement und ein korrespondierender Gegenanschlag am Schließhilfshebel notwendig, um das Entkuppeln des Schließhilfshebels von der Schloßfalle durch den Bewegungszyklus des Antriebselements bewirken zu können.A particularly simple and thus robust structural design is shown when the closing auxiliary lever is articulated to the drive element at a location spaced from the pivot axis of the drive element in the manner of an eccentric. Then only a stop on the drive element and a corresponding counter-stop on the auxiliary closing lever is necessary in order to be able to effect the uncoupling of the auxiliary closing lever from the latch by the movement cycle of the drive element.

Zu Beginn des Schließvorgangs stehen der Anschlag und der Gegenanschlag miteinander in Eingriff und blockieren das Verschwenken des Schließhilfshebels gegenüber dem Antriebselement in einer Richtung. Dadurch wird zunächst sichergestellt, daß der Schließhilfshebel nicht in die Bewegung der Schloßfalle eingreifen kann, so lange dies nicht erwünscht ist.At the beginning of the closing operation, the stop and the counter stop are engaged with each other and block the pivoting of the auxiliary closing lever relative to the drive element in one direction. This initially ensures that the auxiliary closing lever can not interfere with the movement of the latch, as long as this is not desirable.

Die Schließhilfe ist nun vorzugsweise so ausgeführt, daß der Schließhilfshebel beim Schließvorgang durch den Bewegungszyklus des Antriebselements und bei miteinander in Eingriff befindlichen Anschlag und Gegenanschlag zunächst ohne Verschwenken gegenüber dem Antriebselement in Anlage mit der Schloßfalle kommt und dann unter einem Verschwenken gegenüber dem Antriebselement die entsprechende Verstellung der Schloßfalle bewirkt.The closing aid is now preferably carried out so that the closing auxiliary lever during closing by the movement cycle of the drive element and engaged with each stop and counter-stop initially without pivoting relative to the drive element comes into contact with the latch and then with a pivoting relative to the drive element, the corresponding adjustment the latch causes.

Ganz bevorzugt ist es weiter, daß Anschlag und Gegenanschlag so ausgeführt sind, daß sie beim Schließvorgang und nach der Verstellung der Schloßfalle durch den Bewegungszyklus des Antriebselements derart miteinander in Eingriff kommen, daß das Entkuppeln des Schließhilfshebels erfolgt. Damit ist gemeint, daß die Bewegung des Antriebselements über die Anschläge so auf den Schließhilfshebel übertragen wird, daß dieser aus der mit der Schloßfalle kuppelnden Stellung gelöst wird. Mit einfachsten konstruktiven Mitteln wird so der volle Funktionsumfang einer Schließhilfe inklusive des Kuppelns des Schließhilfshebels mit der Schloßfalle sowie des Entkuppelns des Schließhilfshebels von der Schloßfalle gewährleistet.Quite preferably, it is further that stop and counter-stop are designed so that they come so close to each other during the closing operation and after the adjustment of the latch by the movement cycle of the drive element, that the uncoupling of the auxiliary closing lever takes place. This means that the movement of the drive element is transmitted via the stops so on the auxiliary closing lever that this from the with the latch coupling position is solved. With the simplest design means so the full functionality of a closing aid including the coupling of the auxiliary closing lever with the latch and the decoupling of the auxiliary closing lever is ensured by the latch.

Weitere Einzelheiten, Merkmale, Ziele und Vorteile der vorliegenden Erfindung werden nachfolgend anhand der Zeichnung eines bevorzugten Ausführungsbeispiels näher erläutert. In der Zeichnung zeigt

Fig. 1
ein erfindungsgemäßes Kraftfahrzeugschloß mit der Schloßfalle in Vorschließstellung und entkuppeltem Schließhilfshebel,
Fig. 2
das Kraftfahrzeugschloß aus Fig. 1 mit gekuppeltem Schließhilfshebel,
Fig. 3
das Kraftfahrzeugschloß aus Fig. 1 mit der Schloßfalle in Überhubstellung.
Further details, features, objects and advantages of the present invention will be explained in more detail with reference to the drawing of a preferred embodiment. In the drawing shows
Fig. 1
an inventive motor vehicle lock with the latch in prelocking and uncoupled closing auxiliary lever,
Fig. 2
the motor vehicle lock of FIG. 1 with coupled closing auxiliary lever,
Fig. 3
the motor vehicle lock of Fig. 1 with the latch in overstroke position.

In den Figuren der Zeichnung werden für gleiche oder ähnliche Teile die selben Bezugszeichen verwendet. Damit soll angedeutet werden, daß entsprechende oder vergleichbare Eigenschaften und Vorteile erreicht werden, auch wenn eine wiederholte Beschreibung dieser Teile unterbleibt.In the figures of the drawing, the same reference numerals are used for the same or similar parts. This is intended to indicate that corresponding or comparable properties and advantages are achieved, even if a repeated description of these parts is omitted.

Fig. 1 zeigt ein Kraftfahrzeugschloß 1 mit einer Schloßfalle 2 und einer die Schloßfalle 2 in einer Hauptrast 3 bzw. einer Vorrast 4 haltenden Sperrklinke 5. In Fig. 1 befindet sich die Schloßfalle 2 in einer Vorschließstellung, in der die Schloßfalle 2 in der Vorrast 4 von der Sperrklinke 5 gehalten wird. In der Hauptschließstellung wird die Schloßfalle 2 von der Sperrklinke 5 in der Hauptrast 3 gehalten. Für die hier offenbarte Erfindung ist eine Vorschließstellung nicht zwangsläufig erforderlich. Statt dessen reicht eine definierte Zwischenstellung, aus der die Schloßfalle 2 dann in ihre Hauptschließstellung verstellbar ist. Im vorliegend beschriebenen Ausführungsbeispiel entspricht diese Zwischenstellung allerdings der Vorschließstellung.
Das Kraftfahrzeugschloß 1 ist mit einer Schließhilfe 6 zur Verstellung der Schloßfalle 2 in die Hauptschließstellüng ausgestattet. Dabei kann sowohl ein motorischer als auch ein manueller Betrieb der Schließhilfe vorgesehen sein.Fig. 1 shows a motor vehicle lock 1 with a latch 2 and a lock latch 2 in a main catch 3 and a pre-latch 4 holding pawl 5. In Fig. 1, the latch 2 is in a prelocking position, in which the latch 2 in the pre-rest 4 is held by the pawl 5. In the main closed position, the latch 2 is held by the pawl 5 in the main catch 3. For the invention disclosed herein, a prelocking is not necessarily required. Instead, a defined intermediate position, from which the latch 2 is then adjustable in its main closed position is sufficient. In the presently described embodiment, however, this intermediate position corresponds to the prelocking position.
The motor vehicle lock 1 is equipped with a closing aid 6 for adjusting the latch 2 in the Hauptschließstellüng. In this case, both a motor and a manual operation of the closing aid can be provided.

Die Schließhilfe 6 weist einen Antrieb 7 - Schließhilfsantrieb - mit einem Antriebselement 8 und einen Schließhilfshebel 9 auf. Das Antriebselement 8 ist um eine Schwenkachse 10 schwenkbar gelagert. Der Schließhilfshebel 9 ist an dem Antriebselement 8, um eine Schwenkachse l0a schwenkbar, angelenkt. Die Schwenkachse 10 des Antriebselements 8 und die Schwenkachse l0a des Schließhilfshebels 9 sind vorzugsweise parallel zueinander ausgerichtet:

  • Die Schloßfalle 2 ist mittels des Schließhilfsantriebs 7 über das Antriebselement 8 und über den Schließhilfshebel 9 in die Hauptschließstellung verstellbar. Hierfür ist der Schließhilfshebel 9 mit der Schloßfalle 2 kuppelbar (Fig. 2). Die Verstellung der Schloßfalle 2 in die Hauptschließstellung wird als Schließvorgang bezeichnet.
The closing aid 6 has a drive 7 - auxiliary closing drive - with a drive element 8 and a closing auxiliary lever 9. The drive element 8 is pivotally mounted about a pivot axis 10. The closing auxiliary lever 9 is articulated on the drive element 8, pivotable about a pivot axis 10a. The pivot axis 10 of the drive element 8 and the pivot axis 10a of the auxiliary closing lever 9 are preferably aligned parallel to each other:
  • The latch 2 is adjustable by means of the auxiliary closing drive 7 via the drive element 8 and via the auxiliary closing lever 9 in the main closed position. For this purpose, the closing auxiliary lever 9 with the latch 2 can be coupled (Fig. 2). The adjustment of the latch 2 in the main closing position is referred to as closing.

Der Schließvorgang der Schloßfalle 2 umfaßt einen Bewegungszyklus des Antriebselements 8, der die Verstellung der Schloßfalle 2 in die Hauptschließstellung und anschließend das Entkuppeln des Schließhilfshebels 9 von der Schloßfalle 2 bewirkt. Die Verstellung der Schloßfalle 2 in die Hauptschließstellung umfaßt vorliegend auch die Verstellung der Schloßfalle 2 zunächst in eine Überhubstellung (Fig. 3) mit dem anschließenden Zurückfallen der Schloßfalle 2 in die Hauptschließstellung. Der Schließvorgang ist erst nach dem Entkuppeln des Schließhilfshebels 9 von der Schloßfalle 2 beendet.The closing operation of the latch 2 comprises a cycle of movement of the drive element 8, which causes the adjustment of the latch 2 in the main closing position and then the uncoupling of the auxiliary closing lever 9 of the latch 2. The adjustment of the latch 2 in the main closing position in the present case also includes the adjustment of the latch 2 initially in an overstroke position (Fig. 3) with the subsequent falling back of the latch 2 in the main closed position. The closing process is completed only after the uncoupling of the auxiliary closing lever 9 of the latch 2.

Es darf schon hier darauf hingewiesen werden, daß ursächlich für das Entkuppeln des Schließhilfshebels 9 von der Schloßfalle 2 durch den Bewegungszyklus des Antriebselements 8 die besondere Ausgestaltung der Kopplung zwischen dem Antriebselement 8 einerseits und dem Schließhilfshebel 9 andererseits ist. Dies wird im folgenden noch näher erläutert.It may already be pointed out here that the cause of the decoupling of the auxiliary closing lever 9 from the latch 2 by the movement cycle of the drive element 8, the special configuration of the coupling between the drive element 8 on the one hand and the auxiliary closing lever 9 on the other. This will be explained in more detail below.

Die Schließhilfe 6 ist hier so ausgeführt, daß der Bewegungszyklus des Antriebselements 8 vor der Verstellung der Schloßfalle 2 in die Hauptschließstellung zunächst das Kuppeln des Schließhilfshebels 9 mit der Schloßfalle 2 bewirkt.The closing aid 6 is designed here so that the movement cycle of the drive element 8 causes the coupling of the auxiliary closing lever 9 with the latch 2 before the adjustment of the latch 2 in the main closing position.

Der Bewegungszyklus des Antriebselements 8 umfaßt beim Schließvorgang vorzugsweise ein Verschwenken des Antriebselements 8 in beide Schwenkrichtungen. Dabei ist das Kuppeln des Schließhilfshebels 9 mit der Schloßfalle 2 und die Verstellung der Schloßfalle 2 in die Hauptschließstellung mit dem Verschwenken des Antriebselements 8 in eine Schwenkrichtung - in Fig. 1 rechtsherum - verbunden und das Entkuppeln mit dem Verschwenken des Antriebselements 8 in der entgegengesetzten Schwenkrichtung - in Fig. 1 linksherum - verbunden.The movement cycle of the drive element 8 during the closing operation preferably comprises a pivoting of the drive element 8 in both pivoting directions. Here is the coupling of the auxiliary closing lever 9 with the latch 2 and the adjustment of the lock catch 2 in the main closing position with the pivoting of the drive element 8 in a pivoting direction - in Fig. 1 rechtsherum - connected and uncoupling with the pivoting of the drive element 8 in the opposite pivoting direction - in Fig. 1 linksherum - connected.

Der gesamte Schließvorgang erfolgt vorzugsweise vollständig motorisch. Es ist aber auch möglich, daß die Rückstellung des Antriebselements 8 und damit das Entkuppeln des Schließhilfshebels 9 durch Federkraft in Verbindung mit einem Freilauf des Antriebselements 8 realisiert wird.The entire closing operation is preferably completely motorized. But it is also possible that the provision of the drive element 8 and thus the decoupling of the auxiliary closing lever 9 is realized by spring force in conjunction with a freewheel of the drive element 8.

Der Schließhilfshebel 9 ist vorzugsweise nach Art eines Exzenters an einer von der Schwenkachse 10 des Antriebselements 8 beabstandeten Stelle an dem Antriebselement 8 schwenkbar angelenkt. Das Antriebselement 8 weist einen Anschlag 11 und der Schließhilfshebel 9 weist einen Gegenanschlag 12 auf. Die beiden Anschläge 11, 12 stehen zu Begin des Schließvorgangs miteinander in Eingriff und blockieren ein Verschwenken des Schließhilfshebels 9 gegenüber dem Antriebselement 8 in eine Richtung, hier in Richtung der gekuppelten Stellung des Schließhilfshebels 9.The auxiliary closing lever 9 is preferably pivotably connected to the drive element 8 in the manner of an eccentric at a location spaced from the pivot axis 10 of the drive element 8. The drive element 8 has a stop 11 and the auxiliary closing lever 9 has a counter-stop 12. The two stops 11, 12 are at the beginning of the closing operation with each other engaged and block pivoting of the auxiliary closing lever 9 relative to the drive member 8 in one direction, here in the direction of the coupled position of the auxiliary closing lever. 9

Die Schließhilfe 6 ist vorzugsweise so ausgeführt, daß der Schließhilfshebel 9 beim Schließvorgang durch den Bewegungszyklus des Antriebselements 8 und bei miteinander in Eingriff befindlichen Anschlag 11 und Gegenanschlag 12 zunächst - ohne ein Verschwenken gegenüber dem Antriebselement 8 - in Anlage mit der Schloßfalle 2 kommt. Dies ist mit einem Verschwenken des Antriebselements 8 in Fig. 1 rechtsherum verbunden. Anschließend bewirkt das weitere Verschwenken des Antriebselements 8 unter einem Verschwenken des Schließhilfshebels 9 gegenüber dem Antriebselement 8 die Verstellung der Schloßfalle 2 in die Hauptschließstellung.The closing aid 6 is preferably designed so that the closing auxiliary lever 9 during closing by the movement cycle of the drive element 8 and with mutually engaged stop 11 and counter-stop 12 initially - without pivoting relative to the drive element 8 - comes into contact with the latch 2. This is connected to a pivoting of the drive element 8 in Fig. 1 on the right. Subsequently, the further pivoting of the drive element 8 causes pivoting of the auxiliary closing lever 9 relative to the drive element 8, the adjustment of the latch 2 in the main closed position.

Anschlag 11 und Gegenanschlag 12 sind so angeordnet, daß sie beim Schließvorgang und nach der Verstellung der Schloßfalle 2 in die Hauptschließstellung durch den Bewegungszyklus des Antriebselements 8 derart miteinander in Eingriff kommen, daß dadurch das Entkuppeln des Schließhilfshebels 9 von der Schloßfalle 2 erfolgt. Dabei wird im hier gezeigten Ausführungsbeispiel das Antriebselement 8 - in Fig. 3 linksherum - so lange verschwenkt, bis Anschlag 11 und Gegenanschlag 12 wiederum miteinander in Eingriff kommen. Das weitere Verschwenken des Antriebselements 8 hat dann durch den blokkierenden Eingriff der Anschläge 11, 12 ein gemeinsames Verschwenken von Antriebselement 8 und Schließhilfshebel 9 zur Folge, bis letztendlich wieder die Ausgangsstellung (Fig. 1) erreicht ist.Stop 11 and counter-stop 12 are arranged so that they engage in the closing operation and after the adjustment of the latch 2 in the main closing position by the movement cycle of the drive member 8 with each other in such a way that thereby the uncoupling of the auxiliary closing lever 9 takes place from the latch 2. In this case, in the embodiment shown here, the drive element 8 - in Fig. 3 on the left - so long pivots until stop 11 and counter-stop 12 in turn come into engagement with each other. The further pivoting of the drive element 8 then has the blokkierenden engagement of the stops 11, 12 a common pivoting of the drive element 8 and closing auxiliary lever 9 result, until finally the starting position (Fig. 1) is reached.

Das Antriebselement 8 und der Schließhilfshebel 9 sind in die einander blokkierende Stellung vorgespannt. Dies geschieht vorzugsweise durch eine entsprechend angeordnete Feder. Durch die Vorspannung sind Anschlag 11 und Gegenanschlag 12 so lange in blockierendem Eingriff, so lange keine entgegen der Vorspannung wirkende Kraft vorliegt. Eine solche Kraft kommt erst dann zum Tragen, wenn der Schließhilfshebel 9 mit der Schloßfalle 2 gekuppelt ist bzw. solange der Schließhilfshebel 9 mit der Schloßfalle 2 gekuppelt ist.The drive element 8 and the auxiliary closing lever 9 are biased in the blocking position one another. This is preferably done by a correspondingly arranged spring. By the bias stop 11 and counter-stop 12 are so long in blocking engagement, as long as there is no force acting against the bias. Such a force comes only to bear when the auxiliary closing lever 9 is coupled to the latch 2 or as long as the auxiliary closing lever 9 is coupled to the latch 2.

Das Antriebselement 8, der Schließhilfshebel 9 und die Schloßfalle 2 bilden beim Schließvorgang eine Viergelenkkinematik. Dies ist besonders hinsichtlich der Betätigungskräfte für das Verstellen der Schloßfalle 2 in die Hauptschließstellung vorteilhaft, da durch eine Viergelenkkinematik mit geringem Aufwand ein günstiges Übersetzungsverhältnis erreicht werden kann.The drive element 8, the auxiliary closing lever 9 and the latch 2 form a four-joint kinematics during the closing process. This is particularly advantageous in terms of actuation forces for adjusting the lock latch 2 in the main closed position, as can be achieved by a four-joint kinematics with little effort, a favorable gear ratio.

Als Viergelenkkinematik wird hier die Kinematik zwischen dem Antriebselement 8 und der Schloßfalle 2 bezeichnet, bei der während des Schließvorgangs vier Gelenke beteiligt sind. Dies sind hier die Schwenkachse 10 des Antriebselements 8, der Anlenkpunkt des Schließhilfshebels 9 am Antriebselement 8, die Kupplung des Schließhilfshebels 9 mit der Schloßfalle 2 und die Schwenkachse der Schloßfalle 2. Die Viergelenkkinematik ist jedoch nicht zwingend, es können statt dessen auch andere kinematische Ketten zwischen dem Antriebselement 8 und der Schloßfalle 2 vorgesehen sein. Insbesondere kann anstelle der Viergelenkkinematik eine Kinematik mit mehr als vier Gelenken vorgesehen sein, die hinsichtlich des Übertragungsverhältnisses ggf. günstiger ist, jedoch einen größeren konstruktiven Aufwand erfordert.As Viergelenkkinematik here the kinematics between the drive element 8 and the latch 2 is called, in which four joints are involved during the closing process. These are here the pivot axis 10 of the drive element 8, the articulation point of the auxiliary closing lever 9 on the drive element 8, the coupling of the auxiliary closing lever 9 with the latch 2 and the pivot axis of the latch 2. The four-joint kinematics, however, is not mandatory, it can instead other kinematic chains be provided between the drive element 8 and the latch 2. In particular, instead of the four-joint kinematics, a kinematics with more than four joints can be provided, which may be more favorable in terms of the transmission ratio, but requires greater design effort.

Der Schließhilfshebel 9 weist einen Dorn 13 und die Schloßfalle 2 weist eine Ausformung 14 auf. Beim Schließvorgang kommt der Dorn 13 mit der Ausformung 14 der Schloßfalle 2 zum Kuppeln des Schließhilfshebels 9 mit der Schloßfalle 2 in Eingriff. Die Ausformung 14 weist hierfür einen im wesentlichen radial ausgerichteten Abschnitt 15 auf, mit dem der Dorn 13 des Schließhilfshebels 9 beim Verschwenken der Schloßfalle 2 zur Kraftübertragung in Eingriff ist.The auxiliary closing lever 9 has a mandrel 13 and the latch 2 has a molding 14. When closing the mandrel 13 comes with the formation 14 of the latch 2 for coupling the auxiliary closing lever 9 with the Lock catch 2 engaged. The molding 14 has for this purpose a substantially radially aligned portion 15, with which the mandrel 13 of the auxiliary closing lever 9 during pivoting of the latch 2 for power transmission is engaged.

Zusätzlich weist die Ausformung 14 einen im wesentlichen bogenförmigen Abschnitt 16 auf, an den sich der Schließhilfshebel 9 während des Schließvorgangs annähert. Entsprechend ist auch der Schließhilfshebel 9 mit einem zum Abschnitt 16 der Ausformung 14 korrespondierenden, bogenförmigen Abschnitt 17 ausgestattet.In addition, the molding 14 has a substantially arcuate portion 16, to which the closing auxiliary lever 9 approaches during the closing operation. Correspondingly, the closing auxiliary lever 9 is also equipped with a curved section 17 corresponding to the section 16 of the molding 14.

Beim Entkuppeln des Schließhilfshebels 9 von der Schloßfalle 2 gleitet der Schließhilfshebel 9 so lange entlang des bogenförmigen Abschnitts 16 der Schloßfalle 2, bis die Anschläge 11, 12 miteinander in Eingriff kommen und der Schließhilfshebel 9 dann durch die weitere Bewegung des Antriebselements 8 entkuppelt wird.When uncoupling the auxiliary closing lever 9 of the latch 2, the closing auxiliary lever 9 slides along the arcuate portion 16 of the latch 2 until the stops 11, 12 engage each other and the auxiliary locking lever 9 is then decoupled by the further movement of the drive element 8.

Der Schließhilfsantrieb 7 weist hier und vorzugsweise einen Elektromotor zur Verstellung des Antriebselementes 8 auf. Anstelle des Elektromotors kann jedoch auch ein pneumatischer Antrieb o. dgl. vorgesehen sein. Für die antriebstechnische Kopplung vorzugsweise mit dem Motor weist das Antriebselement 8 vorzugsweise einen als Zahnkranz ausgeführten Abschnitt 18 auf.The auxiliary closing drive 7 has here and preferably an electric motor for adjusting the drive element 8. However, instead of the electric motor, a pneumatic drive or the like may be provided. For the drive-technical coupling, preferably with the motor, the drive element 8 preferably has a section 18 designed as a toothed rim.

Der Schließhilfsantrieb 7 kann aber auch einen Bowdenzug aufweisen, so daß durch Betätigung des Bowdenzugs das Antriebselement 8 wie oben beschrieben verschwenkt wird. Das Verschwenken des Antriebselements 8 kann dadurch realisiert sein, daß der Bowdenzug unmittelbar mit dem Antriebselement 8 selbst gekoppelt ist, oder aber daß der Bowdenzug mittelbar, beispielsweise über ein Getriebe, mit dem Antriebselement 8 gekoppelt ist. Der Bowdenzug selbst wird durch einen motorischen Antrieb, oder aber manuell betätigt.However, the auxiliary closing drive 7 may also have a Bowden cable, so that the drive element 8 is pivoted as described above by operating the Bowden cable. The pivoting of the drive element 8 can be realized in that the Bowden cable is directly coupled to the drive element 8 itself, or that the Bowden cable indirectly, for example via a transmission, is coupled to the drive element 8. The Bowden cable itself is operated by a motor drive, or manually.

Claims (13)

  1. Motor vehicle lock with a lock latch (2), with a pawl (5) holding the lock latch (2) in a main latching means (3) and in an optionally present preliminary latching means (4), and with a locking aid (6), wherein the locking aid (6) has a drive (7) - locking-aid drive - with a pivotable drive element (8), and a locking-aid lever (9) coupled pivotably to the drive element (8), wherein the lock latch (2) can be displaced by means of the locking-aid drive (7) via the drive element (8) and via the locking-aid lever (9) into a main locking position - locking operation - and, for this purpose, the locking-aid lever (9) can be coupled to the lock latch (2), and wherein the locking operation comprises a movement cycle of the drive element (8), characterized in that the drive element (8) can be brought into engagement with the locking-aid lever (9) in such a manner that, after the lock latch (2) is displaced into the main locking position, the movement cycle of the drive element (8) brings about the decoupling of the locking-aid lever (9) from the lock latch (2).
  2. Motor vehicle lock according to Claim 1, characterized in that, during the locking operation, the movement cycle of the drive element (8) for displacing the lock latch (2) into the main locking position first of all brings about the coupling of the locking-aid lever (9) to the lock latch (2).
  3. Motor vehicle lock according to Claim 2, characterized in that, during the locking operation, the movement cycle of the drive element (8) comprises a pivoting of the drive element (8) in both pivoting directions, in that the coupling of the locking-aid lever (9) to the lock latch (2) and the displacement of the lock latch (2) into the main locking position is connected to the pivoting of the drive element (8) in one pivoting direction, and in that the decoupling is connected to the pivoting of the drive element (8) in the other pivoting direction.
  4. Motor vehicle lock according to one of Claims 1 to 3, characterized in that the locking-aid lever (9) is coupled pivotably to the drive element (8) at a location spaced apart from the pivot axis (10) of the drive element (8).
  5. Motor vehicle lock according to one of Claims 1 to 4, characterized in that the drive element (8) has a stop (11) and the locking-aid lever (9) has a counterstop (12), and in that, by pivoting of the locking-aid lever (9) in relation to the drive element (8), the stop (11) and the counterstop (12) can be brought into engagement with each other and, as a result, further pivoting is blocked.
  6. Motor vehicle lock according to Claim 5, characterized in that the stop (11) and the counterstop (12) are in engagement with each other in a blocking manner at the beginning of the locking operation.
  7. Motor vehicle lock according to Claim 6, characterized in that, during the locking operation, by means of the movement cycle of the drive element (8) and with the stop (11) and counterstop (12) in engagement with each other, the locking-aid lever (9) first of all - without pivoting of the locking-aid lever (9) in relation to the drive element (8) - comes into contact with the lock latch (2) and then - with pivoting of the locking-aid lever (9) in relation to the drive element (8) - brings about the displacement of the lock latch (2).
  8. Motor vehicle lock according to Claim 5 and, if appropriate, according to Claim 6 or 7, characterized in that, during the locking operation and after displacement of the lock latch (2) into the main locking position by the movement cycle of the drive element (8), the stop (11) and the counterstop (12) come into engagement with each other in a blocking manner and, as a result, the locking-aid lever (9) is decoupled from the lock latch (2).
  9. Motor vehicle lock according to Claim 5 and, if appropriate, according to one of Claims 6 to 8, characterized in that the drive element (8) and the locking-aid lever (9) are prestressed into the mutually blocking position.
  10. Motor vehicle lock according to Claim 4 and, if appropriate, according to one of Claims 5 to 9, characterized in that, during the locking operation, the drive element (8), the locking-aid lever (9) and the lock latch (2) form a four-bar kinematics, and in that the coupling between the locking-aid lever (9) and the lock latch (2) forms a joint of the four-bar kinematics during the locking operation.
  11. Motor vehicle lock according to one of Claims 1 to 10, characterized in that the locking-aid lever (9) has a pin (13), in that the lock latch (2) has a formation (14), and in that, during the locking operation to couple the locking-aid lever (9) to the lock latch (2), the pin (13) comes into engagement with the formation (14), preferably, in that the formation (14) has a section (15) oriented essentially radially, and/or in that the formation (14) has an essentially curved section (16) which the locking-aid lever (9) approaches during the locking operation.
  12. Motor vehicle lock according to one of Claims 1 to 11, characterized in that the locking-aid drive (7) is configured as a motorized drive and preferably has an electric motor for displacement of the drive element (8), and, preferably, in that the drive element (8) has a section (18) designed as a toothed ring for the coupling in terms of drive preferably to the motor.
  13. Motor vehicle lock according to one of Claims 1 to 12, characterized in that the locking-aid drive (7) has a Bowden cable such that the drive element (8) can be pivoted by manual or motorized actuation of the Bowden cable.
EP20050011821 2004-07-15 2005-06-01 Motor vehicle lock Active EP1617021B1 (en)

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Publication number Priority date Publication date Assignee Title
EP2803795A2 (en) 2013-05-17 2014-11-19 Brose Schliesssysteme GmbH & Co. KG Motor vehicle lock
DE102013008415A1 (en) 2013-05-17 2014-11-20 BROSE SCHLIEßSYSTEME GMBH & CO. KG Motor vehicle lock
DE202014103819U1 (en) 2014-08-18 2015-11-19 BROSE SCHLIEßSYSTEME GMBH & CO. KG Motor vehicle lock
EP2987931A1 (en) 2014-08-18 2016-02-24 Brose Schliesssysteme GmbH & Co. KG Motor vehicle lock

Also Published As

Publication number Publication date
US20060012186A1 (en) 2006-01-19
EP1617021A1 (en) 2006-01-18
US7261336B2 (en) 2007-08-28
DE102004034510A1 (en) 2006-02-16
ATE368786T1 (en) 2007-08-15
DE502005001124D1 (en) 2007-09-13

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