EP2843168B1 - Motor vehicle lock - Google Patents

Motor vehicle lock Download PDF

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Publication number
EP2843168B1
EP2843168B1 EP13182616.6A EP13182616A EP2843168B1 EP 2843168 B1 EP2843168 B1 EP 2843168B1 EP 13182616 A EP13182616 A EP 13182616A EP 2843168 B1 EP2843168 B1 EP 2843168B1
Authority
EP
European Patent Office
Prior art keywords
pawl
motor vehicle
vehicle lock
catch
cam
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.)
Active
Application number
EP13182616.6A
Other languages
German (de)
French (fr)
Other versions
EP2843168A1 (en
Inventor
Thorsten Janssen
Bernd Gellhaus
Matthias Wiemann
Stefanie Angelkorte
Tsevetelina Stoycheva
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.)
Witte Automotive GmbH
Original Assignee
Witte Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Witte Automotive GmbH filed Critical Witte Automotive GmbH
Priority to EP13182616.6A priority Critical patent/EP2843168B1/en
Priority to US14/472,711 priority patent/US9869113B2/en
Priority to CN201410443989.3A priority patent/CN104420737B/en
Publication of EP2843168A1 publication Critical patent/EP2843168A1/en
Priority to US15/852,117 priority patent/US20180119461A1/en
Application granted granted Critical
Publication of EP2843168B1 publication Critical patent/EP2843168B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20Bolts or detents
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/12Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E05B81/15Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt with means preventing the detent to return to its latching position before the bolt has moved to the unlatched position
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00Mounting or connecting vehicle locks or parts thereof
    • E05B79/10Connections between movable lock parts
    • E05B79/20Connections between movable lock parts using flexible connections, e.g. Bowden cables
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/02Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04Electrical
    • E05B81/06Electrical using rotary motors
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/1043Swinging
    • Y10T292/1075Operating means
    • Y10T292/108Lever

Definitions

  • the invention relates to a motor vehicle lock with a pawl lock.
  • motor vehicle locks are generally known, for.
  • a driver is arranged with a latching connection element on the pawl, which cooperates with a arranged on an end face of the catch latching counterpart element for locking the pawl.
  • This pawl lock prevents the pawl pivots back into the locked position and locks the catch when the catch does not leave its closed position.
  • a motor vehicle lock according to the preamble of claim 1 is made US 2003/038485 A1 known.
  • the invention has for its object to provide a compact motor vehicle lock with a simple functional mechanism.
  • the motor vehicle lock comprises a pivotable rotary latch with a lateral surface, a pawl which is acted upon by a biasing force and which between a blocking position in which the pawl locks the catch, and an unlocking position in which the catch is unlocked, is pivotable, a release lever for pivoting the pawl against the biasing force and a locking device for locking the pawl in a release position in which they Rotary latch releases, wherein a part of the locking device is formed by the release lever.
  • the pawl lock is not effected by a latching connection between the pawl and the catch, but by the release lever in engagement with the pawl.
  • the release lever on a transport cam which pivots the pawl about a arranged on the pawl cam in the unlocked position.
  • the transport cam is moved against the pawl, for example by a drive motor or manually, to pivot the pawl in the unlocked position.
  • the transport cam can be designed particularly simple as a block-shaped projection on the release lever.
  • the release lever has a driver cam, via which the release lever pivots the pawl out of the blocking position. This means that the pawl is first moved over the drive cam from the locked position until a transport cam of the release lever is moved against the cam of the driver. Then, the pivotal movement of the driver is transferred from the drive cam on the transport cam, whereby the release lever can be made compact.
  • the pawl can be locked until full opening of the rotary latch, whereby uncontrolled pivoting of the pawl in the opening catch can be prevented.
  • the release position of the pawl is between the blocking position and the unlocked position.
  • the release, locking and unlocking position each represent a different angular position of the pawl, so that the release position is within the range of movement of the pawl, ie between the locked and unlocked position of the pawl.
  • the rotary latch comprises a link for releasing the pawl from the release position, whereby an additional Device for releasing the locking device can be saved.
  • the backdrop can be arranged particularly advantageous on the lateral surface of the catch.
  • the rotary latch passes only on its lateral surface with the pawl in functionally effective contact.
  • the pawl locks the catch exclusively by means of a contact between the pawl and the lateral surface of the catch, and the catch releases the pawl from its release position also by means of a contact between the pawl and the lateral surface of the catch.
  • an interaction of the rotary latch and the pawl on an end face of the rotary latch can be omitted, whereby a greater freedom of design of the motor vehicle lock is created.
  • the locking device has a latching connection between the cam of the pawl and the transport cam, whereby a secure locking of the pawl and a secure release of the locking device is possible.
  • the lateral surface of the rotary latch has a locking portion which cooperates in the locking position of the pawl with a latching portion of the pawl, a pre-locking portion which cooperates in a pre-locking position of the pawl with the latching portion of the pawl, and a support portion which in the unlocked position the pawl cooperates with a support surface of the pawl on. Due to the pre-locking position, the motor vehicle lock can still lock, for example, a motor vehicle door after an initial actuation, so that inadvertent opening of the motor vehicle door can be prevented. Furthermore, the locking portion, the pre-locking portion and the support portion may be arranged sequentially on the lateral surface of the rotary latch.
  • a complete opening of the catch is ensured in a particularly simple manner when the pawl is in the release position in an overstroke position.
  • the pawl for example, pivoted so far against the biasing force, that the locking portion and / or the Vorrastabrough the catch during a pivoting of the catch does not come with the latching portion of the pawl in touch / arrive.
  • the release lever on a locking cam which locks the pawl in the locked position and / or in the pre-locked position against pivoting against the biasing force.
  • the pawl can only be pivoted out of the locked position or pre-locked position when the release lever pivots against its biasing force becomes.
  • a housing of the motor vehicle lock can be made particularly compact, that in the release position, a part of the pawl protrudes through a window formed in the housing.
  • Fig. 1 shows an embodiment of a motor vehicle lock 10 according to the invention for locking a motor vehicle tailgate, not shown, to a vehicle body.
  • the motor vehicle lock 10 is mounted on an edge of a trunk, and locks a tailgate via a striker mounted on an inside of the tailgate.
  • the vehicle lock 10 and the striker can be mounted in reverse order on the trunk and the tailgate.
  • the motor vehicle lock 10 can also be used for locking a hood or doors of a motor vehicle.
  • the motor vehicle lock 10 comprises a pivotable rotary latch 12 with a peripheral surface 14 formed on the outer circumference, a pivotable pawl 16, a release lever 18 for pivoting the pawl 16, and a locking device for locking the pawl 16 in a release position in which it releases the catch 12. Furthermore, the motor vehicle lock 10 comprises a housing 20 with a base plate 21, which on one side comprises a left side wall 20a and on an opposite side a right side wall 20b.
  • the rotary latch 12 of the motor vehicle lock 10 is designed as a flat approximately circular disk with end faces 12 a, which are connected by the lateral surface 14.
  • the rotary latch 12 further includes a fork portion 12b, which engages in a closed position of the rotary latch 12 through an eyelet of the striker for locking the tailgate.
  • the pawl 16 acts with a locking lug formed by a locking portion 14a, which is arranged opposite the fork portion 12b on the lateral surface 14 of the rotary latch 12 (see. Fig. 3 ).
  • a pre-locking portion 14b formed by a latching nose is further arranged, which cooperates with the rotary latch 12 to lock the rotary latch 12 in a pre-closing position M.
  • the locking portion 14a and the pre-locking portion 14b of the lateral surface 14 extend in an approximately radial direction to the pivot axis 12d (see. Fig. 5A ).
  • the lateral surface 14 comprises a support section 14c, which represents a section of the lateral surface 14 which is approximately tangential to the pivot axis 12d (cf. Fig. 5A ).
  • the support portion 14c presses against the pawl 16 and holds the pawl 16 in an unlocked position D (see FIG. Fig. 8B ).
  • a gate 14d for releasing the locking device in the radial direction of the rotary latch 12 is also arranged
  • the rotary latch 12 is pivotable about a pivot axis 12d (see FIG. 2) with a pin 28 passing through an eccentric opening 12c of the rotary latch 12 and an opening 21a formed in the base plate 21.
  • Fig. 2 is mounted on the base plate 21 of the housing 20.
  • a leg spring 30 is wound, wherein a first leg 30a of the leg spring 30 abuts against the left side wall 20a of the housing 20, while a second leg 30b at a arranged on the end face 12a projection 12e of the rotary latch 12 is anchored (see. Fig. 3A ).
  • the leg spring 30 acts on the rotary latch 12 with a biasing force, which pivots the catch 12 to unlock the striker in a clockwise direction, as shown in the Fig. 2 is explained in more detail.
  • the pawl 16 acts to block the rotary latch 12 with the lateral surface 14 of the rotary latch 12 together.
  • the pawl 16 has a latching portion 16c and a support surface 16d, which are respectively formed on opposite sides of a triangular projection, wherein the latching portion 16c is arranged in a direction approximately approximately tangential to the pivot axis 16a and the support surface in an approximately radial direction to the pivot axis 16a (see. Fig. 5A ).
  • the pawl 16 pivots in the direction of the rotary latch 12, so that the latching portion 16c of the pawl 16 engages the catch on the locking portion 14a and the pre-locking portion 14b and the catch 12 locks (see. Fig. 3B ).
  • the driver 17 is arranged on one of the pivot axis 16 a opposite end of the pawl 16.
  • the driver 17 is in a direction parallel to the pivot axis 16a direction of the pawl 16 and has a curved profile 17a.
  • the driver 17 has a rounded driver edge 17b and a cam 17c, which serve for transmitting a pivoting movement from the release lever 18 to the driver 17 (cf. Fig. 4 and 5 ).
  • the cam 17c protrudes from the curved profile 17a and comprises a parking bay 17d, which is formed as an approximately cube-shaped recess in the cam 17c (see FIG. Fig. 5B ).
  • the parking bay 17 d is used for producing a latching connection with the release lever 18 in order to lock the pawl 16, as will be explained in more detail below.
  • the plate-shaped pawl 16 is pivotally mounted at one end to the base plate 21 of the housing 20 about a pivot axis 16a that a bolt 24 passes through an opening 16b of the pawl 16 and through an opening 21c formed in the base plate 21.
  • a leg spring 26 is wound around the pin 24 and abuts with a first leg 26a on a driver 17 of the pawl 16 and with a second leg 26b on the right side wall 20b of the housing 20 at.
  • Fig. 1 the release lever 18 of the motor vehicle lock 10, which is driven by a drive motor 22 via a belt 22a (see. Fig. 3A ), and its movement pivots the pawl 16 via the driver 17.
  • the trigger lever 18 initially has a curved arm 18a, which is connected at a the trigger lever 18 distal end via a pin with the belt 22a of the drive motor 22.
  • the trigger lever 18 is connected by a bolt 32, which passes through an opening 18b of the trigger lever 18, about a pivot axis 18c (see. Fig. 2 ) is pivotally mounted on the base plate 21 of the housing 20.
  • a leg spring 34 with two legs 34a, 34b is arranged, which acts on the release lever 18 with a biasing force.
  • the first leg 34a of the leg spring 34 is fixedly connected to the base plate 21 of the housing 20 and the second leg 34b abuts a projection 18d of the release lever 18.
  • the release lever For transmitting the pivoting movement to the driver 17 of the pawl 16, the release lever further comprises a driver cam 18e and a transport cam 18f.
  • To pivot the pawl 16 presses the block-shaped transport cam 18f against the cam 17c of the driver 17, and for locking the pawl of the transport cam 18f locked to the parking bay 17d of the driver 17th
  • the release lever 18 has a locking cam 18g cooperating with the pawl 16, which prevents the pawl 16 from leaving the blocking or pre-locked position (cf. Fig. 3B ).
  • Fig. 2 are the rotary latch 12, the pawl 16 and the release lever 18 with its pivot axes 12d, 16a, 18c and their biasing forces shown purely schematically.
  • the biasing force of the pawl 16 acts in an opposite direction to the biasing force of the rotary latch 12th
  • the motor vehicle lock 10 locks the tailgate, z. B. during driving of the motor vehicle, the catch 12 in the closed position L and the pawl 16 in the locked position A, and the latching portion 16c of the pawl 16 and the locking portion 14a of the lateral surface 14 act together (see. Fig. 3A ).
  • the release lever 18 is pivoted by the drive motor 22 against its biasing force, ie clockwise, until the release lever 18 moves with its drive cam 18e against the driver 17.
  • the driver 17 and accordingly the pawl 16 are pivoted by the release lever 18 until the pawl 16 leaves the blocking position A, and the locking portion 14a of the lateral surface 14 and the latching portion 16c of the pawl 16 are disengaged.
  • the rotary latch 12 pivots due to their biasing force in the Vorschstedgnally M.
  • the Vorschdalegna M of the catch 12 is used for example as a safeguard against unlocking the tailgate due to accidental actuation of the motor vehicle lock 10.
  • the fork portion 12a engages through the eye of the striker and secures it.
  • the pawl 16 is located in the pre-locking position B, in which the latching portion 16c locks the catch 12 via the pre-locking portion 14b of the lateral surface 14.
  • the trigger lever 18 is further pivoted by the drive motor 22, whereby the release lever 18, the pawl 16 pivots about the driver 17 from the pre-locked position B.
  • the latching portion 16c and the Vorrastabrough 14b of the lateral surface 14 are disengaged, and the rotary latch 12 pivots due to their biasing force in the open position N, in which the catch 12 releases the striker and unlocks the tailgate.
  • the rotary latch 12 in the open position of the support portion 14c of the lateral surface 14 moves to the support surface 16d of the pawl 16 and moves the pawl 16 in the unlocked position D, in which the pawl 16 can not lock the catch 12.
  • Fig. 3A shows the catch 12 in the closed position L and the pawl 16 in the locked position A.
  • the fork portion 12b of the catch 12 forms a circumferentially closed opening with the recess 21b of the base plate 21, in which a closing bracket, not shown, can be locked.
  • Fig. 3A the driver 17 with the driver edge 17b and the cam 17c can be clearly seen.
  • the driver edge 17b is arranged relative to the driver cam 18e of the release lever such that the driver edge 17b lies in a rotational path of the driver cam 18e about the pivot axis 18c, ie upon pivoting of the driving cam 18e about the pivot axis 18c, the driving cam 18e abuts on the driving edge 17b and pushes the driver along the rotational path (cf. Fig. 4 ).
  • the cam 17c is arranged with the parking bay 17d along a rotational path of the transport cam 18f.
  • Fig. 3B shows an enlarged rear view of the marked by a circle region of Fig. 3A , The same goes for the FIGS. 4 to 8 ,
  • Fig. 3B It can be seen that the locking cam 18g formed at the lower region of the release lever 18 rests against a projection 16e of the pawl 16. Thus, the locking cam 18g sits in the pivoting path of the pawl 16 and prevents the pawl 16, the locking position A leaves before the locking cam 18g is moved away.
  • the rotary latch 12 is seated with the locking portion 14a on the latching portion 16c of the pawl 16 and is held against its biasing force in the closed position L.
  • the locking portion 14a and the latching portion 16c move apart and disengage, so that the pawl 16 no longer locks the catch 12 in the closed position L.
  • Fig. 4 In particular, the interaction between the driving edge 17b and the driving cam 18e of the trigger lever 18 is shown at the beginning of the opening process.
  • the rotary latch 12 are in the closed position L and the pawl in the blocking position A.
  • the drive motor 22 starts rotating, and shortens the belt 22a by winding the belt 22a around a tape reel (not shown).
  • the release lever 18 is pulled over the arm 18a connected to the band 22a to the drive motor 22 (see FIG. Fig. 3A ), and only the trigger lever 18 is pivoted clockwise, whereby the locking cam 18g is pivoted away from the projection 16e of the pawl 16, as in Fig. 4B is shown.
  • a pivoting of the pawl 16 from the blocking position A is possible (see, with the locking cam 18g in Fig. 5B ).
  • Fig. 5A the state is shown in which the pawl 16 has left the blocking position A and the lateral surface 14 and the pawl 16 are disengaged.
  • the external force can z. B. be the weight of an accumulated on a vehicle tailgate snow layer. This weight counteracts the opening of the tailgate, whereby the rotary latch 12 does not pivot out of the closed position L, since the tailgate does not move in the opening direction.
  • the pawl 16 would pivot with locked catch 12 due to their biasing force back into the locking position A, the locking portion 16c would grip the lateral surface 14 under the locking portion 14a, the catch 12 would be blocked by the pawl 16, and the opening process would be undesirable canceled. In order to still allow the opening process in such cases, the pawl 16 is locked by means of pawl lock (see. Fig. 7B ).
  • Fig. 5B shows the trigger lever 18 presses with the transport cam 18f against an edge of the parking bay 17d, which is arranged in the cam 17c of the driver 17.
  • state of the drive cam 18e does not press on the driver edge 17b (see. Fig. 5A ), because the pivotal movement was transferred from the drive cam 18 e on the transport cam 18 f.
  • Fig. 6 the pawl 16 is further pivoted by the release lever 18.
  • Fig. 6B the position of the transport cam 18f in which the transportation cam 18f is almost within the parking bay 17d (see FIG. Fig. 5B ).
  • the trigger lever 18 counterclockwise, the transport cam 18f slips into the parking bay 17d (see. Fig. 7B ).
  • Fig. 7 represents the effective Sperrklinkenarret ist, ie the state in which the pawl 16 is locked by the latching connection between the transport cam 18f of the release lever and the parking bay 17d of the driver 17.
  • the effective pawl lock is the pawl 16 in the release position C, in which the pawl 16, the catch 12 releases.
  • the release position C the pawl 16 is simultaneously in an overstroke position. This means that the pawl 16 is pivoted so far away from the rotary latch 12, that the rotary latch 12 is not latched with the pawl 16 when pivoting from the closed position.
  • the driver 17 of the pawl 16 projects in the release position C with the cam 17c from a window formed in the right side wall 20b, whereby the housing 20 can be realized compact and symmetrical.
  • Fig. 7B the locking connection is shown in more detail.
  • the transport cam 18f is arranged in the parking bay 17d of the driver 17.
  • the latching connection acts counter to the biasing force of the pawl 16 and the pawl 16 can not pivot back into the blocking position.
  • the latching connection is thus prevented that the pawl 16 leaves the release position until the catch 12 has reached the open position N, and the opening process of the motor vehicle lock 10 is ensured even when exposed to an external weight on the tailgate.
  • Fig. 8 shows the motor vehicle lock 10 with the catch 12 in the open position L and the pawl 16 in the unlocked position D. This state is given at the end of the opening process and after the disengagement of the pawl detent.
  • the gate 14d is first moved when opening the rotary latch 12 on the support surface 16d of the pawl 16 and the locked pawl 16 is thereby moved slightly counter to its biasing force. This movement releases the latching connection between the transport cam 18f and the parking bay 17d, as in the upper region of the Fig. 8B is shown.
  • the catch 12 continues to rotate until the support portion 14c comes to rest on the support surface 16d, and the pawl 16 is moved to the unlocked position D.

Description

Die Erfindung betrifft ein Kraftfahrzeugschloss mit einer Sperrklinkenarretierung. Nach dem internen Stand der Technik der Anmelderin sind derartige Kraftfahrzeugschlösser grundsätzlich bekannt, z. B. für die Verriegelung von Heckklappen, Hauben und Türen, und umfassen eine federbelastete Drehfalle, die in einer Schließstellung einen Schließbügel oder -bolzen verriegelt, und eine federbelastete Sperrklinke, welche in einer Sperrstellung eine Mantelfläche der Drehfalle sperrt. An der Sperrklinke ist ein Mitnehmer mit einem Rastverbindungselement an der Sperrklinke angeordnet, das mit einem an einer Stirnfläche der Drehfalle angeordneten Rastverbindungsgegenelement zur Arretierung der Sperrklinke zusammenwirkt. Durch diese Sperrklinkenarretierung wird verhindert, dass die Sperrklinke zurück in die Sperrstellung schwenkt und die Drehfalle sperrt, wenn die Drehfalle ihre Schließstellung nicht verlässt. Da die Sperrklinke sowohl mit der Mantelfläche als auch mit dem an der Stirnfläche angeordneten Rastverbindungsgegenelement zusammenwirkt, ist der Funktionsmechanismus des Kraftfahrzeugschloss jedoch kompliziert.
Ein Kraftfahrzeugschloss gemäß dem Oberbegriff des Anspruchs 1 ist aus US 2003/038485 A1 bekannt.
The invention relates to a motor vehicle lock with a pawl lock. According to the internal state of the art of the Applicant such motor vehicle locks are generally known, for. As for the locking of tailgates, hoods and doors, and include a spring-loaded rotary latch which locks in a closed position a striker or bolt, and a spring-loaded pawl, which locks in a blocking position, a lateral surface of the catch. On the pawl, a driver is arranged with a latching connection element on the pawl, which cooperates with a arranged on an end face of the catch latching counterpart element for locking the pawl. This pawl lock prevents the pawl pivots back into the locked position and locks the catch when the catch does not leave its closed position. Since the pawl cooperates with both the lateral surface and with the arranged on the end face locking connection counter-element, however, the functional mechanism of the motor vehicle lock is complicated.
A motor vehicle lock according to the preamble of claim 1 is made US 2003/038485 A1 known.

Der Erfindung liegt die Aufgabe zugrunde, ein kompaktes Kraftfahrzeugschloss mit einem einfachen Funktionsmechanismus zu schaffen.The invention has for its object to provide a compact motor vehicle lock with a simple functional mechanism.

Zur Lösung der Aufgabe ist ein Kraftfahrzeugschloss mit den Merkmalen des Anspruchs 1 vorgesehenTo solve the problem, a motor vehicle lock with the features of claim 1 is provided

Das erfindungsgemäße Kraftfahrzeugschloss umfasst eine schwenkbare Drehfalle mit einer Mantelfläche, eine mit einer Vorspannkraft beaufschlagte Sperrklinke, die zwischen einer Sperrstellung, in der die Sperrklinke die Drehfalle sperrt, und einer Entsperrungsstellung, in der die Drehfalle entsperrt ist, verschwenkbar ist, einen Auslösehebel zum Schwenken der Sperrklinke entgegen der Vorspannkraft sowie eine Arretiereinrichtung zum Arretieren der Sperrklinke in einer Freigabestellung, in der sie die Drehfalle freigibt, wobei ein Teil der Arretiereinrichtung durch den Auslösehebel gebildet ist. Mit anderen Worten erfolgt die Sperrklinkenarretierung nicht durch eine Rastverbindung zwischen der Sperrklinke und der Drehfalle, sondern durch den Auslösehebel im Eingriff mit der Sperrklinke. Somit fällt die mittels eines elastischen Mitnehmers, in Stirnflächenrichtung der Drehfalle wirkende Arretierung der Sperrklinke weg.The motor vehicle lock according to the invention comprises a pivotable rotary latch with a lateral surface, a pawl which is acted upon by a biasing force and which between a blocking position in which the pawl locks the catch, and an unlocking position in which the catch is unlocked, is pivotable, a release lever for pivoting the pawl against the biasing force and a locking device for locking the pawl in a release position in which they Rotary latch releases, wherein a part of the locking device is formed by the release lever. In other words, the pawl lock is not effected by a latching connection between the pawl and the catch, but by the release lever in engagement with the pawl. Thus, the acting by means of an elastic driver, acting in the end face of the rotary latch locking the pawl away.

Erfindungsgemäß weist der Auslösehebel einen Transportnocken auf, der die Sperrklinke über einen an der Sperrklinke angeordneten Nocken in die Entsperrungsstellung schwenkt. Beim Schwenken des Auslösehebels wird der Transportnocken gegen die Sperrklinke gefahren, beispielsweise durch einen Antriebsmotor oder auch manuell, um die Sperrklinke in die Entsperrungsstellung zu schwenken. Der Transportnocken lässt sich dabei besonders einfach als blockförmiger Vorsprung am Auslösehebel gestalten.According to the invention, the release lever on a transport cam, which pivots the pawl about a arranged on the pawl cam in the unlocked position. When pivoting the release lever, the transport cam is moved against the pawl, for example by a drive motor or manually, to pivot the pawl in the unlocked position. The transport cam can be designed particularly simple as a block-shaped projection on the release lever.

Erfindungsgemäß weist der Auslösehebel einen Mitnehmernocken auf, über den der Auslösehebel die Sperrklinke aus der Sperrstellung schwenkt. Das bedeutet, dass die Sperrklinke zuerst über den Mitnehmernocken aus der Sperrstellung bewegt wird, bis ein Transportnocken des Auslösehebels gegen den Nocken des Mitnehmers gefahren wird. Dann, wird die Schwenkbewegung des Mitnehmers von dem Mitnehmernocken auf den Transportnocken übergeben, wodurch der Auslösehebel kompakt gebaut werden kann.According to the invention, the release lever has a driver cam, via which the release lever pivots the pawl out of the blocking position. This means that the pawl is first moved over the drive cam from the locked position until a transport cam of the release lever is moved against the cam of the driver. Then, the pivotal movement of the driver is transferred from the drive cam on the transport cam, whereby the release lever can be made compact.

Dadurch dass die Sperrklinke durch den Auslösehebel arretiert wird, kann die Sperrklinke ferner bis zur vollständigen Öffnung der Drehfalle arretiert werden, wodurch ein unkontrolliertes Schwenken der Sperrklinke bei der öffnenden Drehfalle verhindert werden kann.Further, by locking the pawl by the trip lever, the pawl can be locked until full opening of the rotary latch, whereby uncontrolled pivoting of the pawl in the opening catch can be prevented.

Vorteilhafte Ausbildungen der Erfindung sind den Unteransprüchen, der Beschreibung und der Zeichnung zu entnehmen.Advantageous embodiments of the invention are described in the dependent claims, the description and the drawings.

Gemäß einer vorteilhaften und Ausführungsform befindet sich die Freigabestellung der Sperrklinke zwischen der Sperrstellung und der Entsperrungsstellung. Die Freigabe-, Sperr- und Entsperrungsstellung stellen jeweils eine unterschiedliche Winkellage der Sperrklinke dar, sodass die Freigabestellung sich innerhalb des Bewegungsbereichs der Sperrklinke befindet, also zwischen der Sperr- und Entsperrungsstellung der Sperrklinke. Damit wird eine kompakte Gestaltung des Kraftfahrzeugschlosses möglich.According to an advantageous embodiment, the release position of the pawl is between the blocking position and the unlocked position. The release, locking and unlocking position each represent a different angular position of the pawl, so that the release position is within the range of movement of the pawl, ie between the locked and unlocked position of the pawl. For a compact design of the motor vehicle lock is possible.

Gemäß einer bevorzugten Ausführungsform umfasst die Drehfalle eine Kulisse zum Lösen der der Sperrklinke aus der Freigabestellung, wodurch eine zusätzliche Einrichtung zum Lösen der Arretiereinrichtung gespart werden kann. Zum Lösen der Arretiereinrichtung kann die Kulisse besonders vorteilhaft an der Mantelfläche der Drehfalle angeordnet sein.According to a preferred embodiment, the rotary latch comprises a link for releasing the pawl from the release position, whereby an additional Device for releasing the locking device can be saved. To the Loosen the locking device, the backdrop can be arranged particularly advantageous on the lateral surface of the catch.

Bei einer weiteren vorteilhaften Ausführungsform gelangt die Drehfalle ausschließlich über ihre Mantelfläche mit der Sperrklinke in funktionswirksame Berührung. Das bedeutet, dass die Sperrklinke die Drehfalle ausschließlich mittels einer Berührung zwischen der Sperrklinke und der Mantelfläche der Drehfalle sperrt, und die Drehfalle die Sperrklinke aus ihrer Freigabestellung auch mittels einer Berührung zwischen der Sperrklinke und der Mantelfläche der Drehfalle löst. Damit kann beispielsweise ein Zusammenwirken der Drehfalle und der Sperrklinke über eine Stirnfläche der Drehfalle wegfallen, wodurch eine größere Gestaltungsfreiheit des Kraftfahrzeugschlosses entsteht.In a further advantageous embodiment, the rotary latch passes only on its lateral surface with the pawl in functionally effective contact. This means that the pawl locks the catch exclusively by means of a contact between the pawl and the lateral surface of the catch, and the catch releases the pawl from its release position also by means of a contact between the pawl and the lateral surface of the catch. Thus, for example, an interaction of the rotary latch and the pawl on an end face of the rotary latch can be omitted, whereby a greater freedom of design of the motor vehicle lock is created.

Bei einer weiteren bevorzugten Ausführungsform weist die Arretiereinrichtung eine Rastverbindung zwischen dem Nocken der Sperrklinke und dem Transportnocken auf, wodurch ein sicheres Arretieren der Sperrklinke sowie ein sicheres Lösen der Arretiereinrichtung möglich wird.In a further preferred embodiment, the locking device has a latching connection between the cam of the pawl and the transport cam, whereby a secure locking of the pawl and a secure release of the locking device is possible.

Gemäß einer weiteren vorteilhaften Ausführungsform weist die Mantelfläche der Drehfalle einen Sperrabschnitt, der in der Sperrstellung der Sperrklinke mit einem Rastabschnitt der Sperrklinke zusammenwirkt, einen Vorrastabschnitt, der in einer Vorraststellung der Sperrklinke mit dem Rastabschnitt der Sperrklinke zusammenwirkt, und einen Stützabschnitt, der in der Entsperrungsstellung der Sperrklinke mit einer Stützfläche der Sperrklinke zusammenwirkt, auf. Durch die Vorraststellung kann das Kraftfahrzeugschloss nach anfänglicher Betätigung beispielsweise eine Kraftfahrzeugtür noch verriegeln, damit ein unbeabsichtigtes Öffnen der Kraftfahrzeugtür verhindert werden kann. Ferner können der Sperrabschnitt, der Vorrastabschnitt und der Stützabschnitt nacheinander an der Mantelfläche der Drehfalle angeordnet sein.According to a further advantageous embodiment, the lateral surface of the rotary latch has a locking portion which cooperates in the locking position of the pawl with a latching portion of the pawl, a pre-locking portion which cooperates in a pre-locking position of the pawl with the latching portion of the pawl, and a support portion which in the unlocked position the pawl cooperates with a support surface of the pawl on. Due to the pre-locking position, the motor vehicle lock can still lock, for example, a motor vehicle door after an initial actuation, so that inadvertent opening of the motor vehicle door can be prevented. Furthermore, the locking portion, the pre-locking portion and the support portion may be arranged sequentially on the lateral surface of the rotary latch.

Ein vollständiges Öffnen der Drehfalle wird auf besonders einfacher Weise gewährleistet, wenn sich die Sperrklinke in der Freigabestellung in einer Überhub-Position befindet. Um die Überhub-Position zu erreichen, wird die Sperrklinke beispielsweise soweit entgegen der Vorspannkraft geschwenkt, dass der Sperrabschnitt und/oder der Vorrastabschnitt der Drehfalle bei einem Schwenken der Drehfalle nicht mit dem Rastabschnitt der Sperrklinke in Berührung gelangt/gelangen.A complete opening of the catch is ensured in a particularly simple manner when the pawl is in the release position in an overstroke position. In order to achieve the overstroke position, the pawl, for example, pivoted so far against the biasing force, that the locking portion and / or the Vorrastabschnitt the catch during a pivoting of the catch does not come with the latching portion of the pawl in touch / arrive.

Bei einer weiteren bevorzugten Ausführungsform weist der Auslösehebel einen Sperrnocken auf, der die Sperrklinke in der Sperrstellung und/oder in der Vorraststellung gegen ein Schwenken entgegen der Vorspannkraft sperrt. Mit anderen Worten kann die Sperrklinke erst aus der Sperrstellung bzw. Vorraststellung geschwenkt werden, wenn der Auslösehebel entgegen seiner Vorspannkraft geschwenkt wird. Durch den Sperrnocken des Auslösehebels wird daher verhindert, dass die Sperrklinke die Sperr- bzw. Vorraststellung versehentlich verlässt.In a further preferred embodiment, the release lever on a locking cam which locks the pawl in the locked position and / or in the pre-locked position against pivoting against the biasing force. In other words, the pawl can only be pivoted out of the locked position or pre-locked position when the release lever pivots against its biasing force becomes. By the locking cam of the release lever is therefore prevented that the pawl accidentally leaves the lock or pre-locked position.

Ein Gehäuse des Kraftfahrzeugschlosses lässt sich dadurch besonders kompakt bauen, dass in der Freigabestellung ein Teil der Sperrklinke durch ein in dem Gehäuse gebildetes Fenster ragt.A housing of the motor vehicle lock can be made particularly compact, that in the release position, a part of the pawl protrudes through a window formed in the housing.

Nachfolgend wird eine beispielhafte Ausführungsformen der Erfindung unter Bezugnahme auf die beigefügte Zeichnung beschrieben. Es zeigen:

Fig. 1
eine Explosionsdarstellung eines erfindungsgemäßen Kraftfahrzeugschlosses;
Fig. 2
eine schematische Darstellung des Kraftfahrzeugschlosses in Fig. 1;
Fig. 3A und 3B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses mit einer Sperrklinke in einer Sperrstellung und mit einer Drehfalle in einer Schließstellung;
Fig. 4A und 4B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses in Fig. 3 am Anfang eines Öffnungsprozesses;
Fig. 5A und 5B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses in Fig. 3 während des Öffnungsprozesses;
Fig. 6A und 6B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses in Fig. 3 während des Öffnungsprozesses;
Fig. 7A und 7B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses in Fig. 3 mit der Sperrklinke in einer Freigabestellung und mit der Drehfalle in der Schließstellung;
Fig. 8A und 8B
eine Frontansicht und eine vergrößerte Rückansicht des Kraftfahrzeugschlosses in Fig. 3 mit der Sperrklinke in der Entsperrungsstellung und mit der Drehfalle in einer Offenstellung.
Hereinafter, an exemplary embodiment of the invention will be described with reference to the accompanying drawings. Show it:
Fig. 1
an exploded view of a motor vehicle lock according to the invention;
Fig. 2
a schematic representation of the motor vehicle lock in Fig. 1 ;
FIGS. 3A and 3B
a front view and an enlarged rear view of the motor vehicle lock with a pawl in a locked position and with a rotary latch in a closed position;
FIGS. 4A and 4B
a front view and an enlarged rear view of the motor vehicle lock in Fig. 3 at the beginning of an opening process;
Figs. 5A and 5B
a front view and an enlarged rear view of the motor vehicle lock in Fig. 3 during the opening process;
FIGS. 6A and 6B
a front view and an enlarged rear view of the motor vehicle lock in Fig. 3 during the opening process;
Figs. 7A and 7B
a front view and an enlarged rear view of the motor vehicle lock in Fig. 3 with the pawl in a release position and with the catch in the closed position;
Figs. 8A and 8B
a front view and an enlarged rear view of the motor vehicle lock in Fig. 3 with the pawl in the unlocked position and with the catch in an open position.

Fig. 1 zeigt eine Ausführungsform eines erfindungsgemäßen Kraftfahrzeugschlosses 10 zur Verriegelung einer nicht gezeigten Kraftfahrzeugheckklappe an einer Fahrzeugkarosserie. Beispielsweise wird das Kraftfahrzeugschloss 10 an einem Rand eines Kofferraums montiert, und verriegelt eine Heckklappe über einen an einer Innenseite der Heckklappe montierten Schließbügel. Selbstverständlich können das Fahrzeugschloss 10 und der Schließbügel in umgekehrter Anordnung an dem Kofferraum und der Heckklappe montiert werden. Außerdem kann das Kraftfahrzeugschloss 10 auch zur Verriegelung einer Haube bzw. Türen eines Kraftfahrzeuges eingesetzt werden. Fig. 1 shows an embodiment of a motor vehicle lock 10 according to the invention for locking a motor vehicle tailgate, not shown, to a vehicle body. For example, the motor vehicle lock 10 is mounted on an edge of a trunk, and locks a tailgate via a striker mounted on an inside of the tailgate. Of course, the vehicle lock 10 and the striker can be mounted in reverse order on the trunk and the tailgate. In addition, the motor vehicle lock 10 can also be used for locking a hood or doors of a motor vehicle.

Das Kraftfahrzeugschloss 10 umfasst eine schwenkbare Drehfalle 12 mit einer am Außenumfang ausgebildeten Mantelfläche 14, eine schwenkbare Sperrklinke 16, einen Auslösehebel 18 zum Schwenken der Sperrklinke 16, sowie eine Arretiereinrichtung zum Arretieren der Sperrklinke 16 in einer Freigabestellung, in der sie die Drehfalle 12 freigibt. Ferner umfasst das Kraftfahrzeugschloss 10 ein Gehäuse 20 mit einer Basisplatte 21, die an einer Seite eine linke Seitenwand 20a und an einer gegenüberliegenden Seite eine rechte Seitenwand 20b umfasst.The motor vehicle lock 10 comprises a pivotable rotary latch 12 with a peripheral surface 14 formed on the outer circumference, a pivotable pawl 16, a release lever 18 for pivoting the pawl 16, and a locking device for locking the pawl 16 in a release position in which it releases the catch 12. Furthermore, the motor vehicle lock 10 comprises a housing 20 with a base plate 21, which on one side comprises a left side wall 20a and on an opposite side a right side wall 20b.

Die Drehfalle 12 des Kraftfahrzeugschlosses 10 ist als flache annähernde runde Scheibe mit Stirnflächen 12a ausgebildet, die durch die Mantelfläche 14 verbunden sind. Die Drehfalle 12 umfasst ferner einen Gabelabschnitt 12b, der in einer Schließstellung der Drehfalle 12 durch eine Öse des Schließbügels zur Verriegelung der Heckklappe greift.The rotary latch 12 of the motor vehicle lock 10 is designed as a flat approximately circular disk with end faces 12 a, which are connected by the lateral surface 14. The rotary latch 12 further includes a fork portion 12b, which engages in a closed position of the rotary latch 12 through an eyelet of the striker for locking the tailgate.

Um die Drehfalle 12 in der Schließstellung zu sperren, wirkt die Sperrklinke 16 mit einem durch eine Rastnase gebildeten Sperrabschnitt 14a, der gegenüber dem Gabelabschnitt 12b an der Mantelfläche 14 der Drehfalle 12 angeordnet ist (vgl. Fig. 3). An der Mantelfläche 14 ist ferner ein durch eine Rastnase gebildeter Vorrastabschnitt 14b angeordnet, der mit der Drehfalle 12 zusammenwirkt, um die Drehfalle 12 in einer Vorschließstellung M zu sperren. Dabei erstrecken sich der Sperrabschnitt 14a und der Vorrastabschnitt 14b der Mantelfläche 14 in einer zur Schenkachse 12d annähernd radialen Richtung (vgl. Fig. 5A).To lock the catch 12 in the closed position, the pawl 16 acts with a locking lug formed by a locking portion 14a, which is arranged opposite the fork portion 12b on the lateral surface 14 of the rotary latch 12 (see. Fig. 3 ). On the lateral surface 14, a pre-locking portion 14b formed by a latching nose is further arranged, which cooperates with the rotary latch 12 to lock the rotary latch 12 in a pre-closing position M. In this case, the locking portion 14a and the pre-locking portion 14b of the lateral surface 14 extend in an approximately radial direction to the pivot axis 12d (see. Fig. 5A ).

Die Mantelfläche 14 umfasst einen Stützabschnitt 14c, der einen zur Schwenkachse 12d annähernd tangential angeordneten Abschnitt der Mantelfläche 14 darstellt (vgl. Fig. 5A). Wenn die Drehfalle 12 zur Freigabe des Schließbügels öffnet, presst der Stützabschnitt 14c gegen die Sperrklinke 16 und hält die Sperrklinke 16 in einer Entsperrungsstellung D (vgl. Fig. 8B). Neben dem Stützabschnitt 14c ist außerdem eine Kulisse 14d zum Lösen der Arretiereinrichtung in radialer Richtung der Drehfalle 12 angeordnetThe lateral surface 14 comprises a support section 14c, which represents a section of the lateral surface 14 which is approximately tangential to the pivot axis 12d (cf. Fig. 5A ). When the catch 12 opens to release the striker, the support portion 14c presses against the pawl 16 and holds the pawl 16 in an unlocked position D (see FIG. Fig. 8B ). In addition to the support portion 14c, a gate 14d for releasing the locking device in the radial direction of the rotary latch 12 is also arranged

Die Drehfalle 12 ist mit einem Bolzen 28, der durch eine exzentrische Öffnung 12c der Drehfalle 12 und eine in der Basisplatte 21 ausgebildeten Öffnung 21a hindurchgreift, schwenkbar um eine Schwenkachse 12d (vgl. Fig. 2) an der Basisplatte 21 des Gehäuses 20 gelagert. Um den Bolzen 28 ist eine Schenkelfeder 30 gewickelt, wobei ein erster Schenkel 30a der Schenkelfeder 30 an der linken Seitenwand 20a des Gehäuses 20 anliegt, während ein zweiter Schenkel 30b an einem an der Stirnfläche 12a angeordneten Vorsprung 12e der Drehfalle 12 verankert ist (vgl. Fig. 3A). Die Schenkelfeder 30 beaufschlagt die Drehfalle 12 mit einer Vorspannkraft, welche die Drehfalle 12 zur Entriegelung des Schließbügels im Uhrzeigersinn schwenkt, wie anhand der Fig. 2 näher erläutert wird.The rotary latch 12 is pivotable about a pivot axis 12d (see FIG. 2) with a pin 28 passing through an eccentric opening 12c of the rotary latch 12 and an opening 21a formed in the base plate 21. Fig. 2 ) is mounted on the base plate 21 of the housing 20. To the bolt 28, a leg spring 30 is wound, wherein a first leg 30a of the leg spring 30 abuts against the left side wall 20a of the housing 20, while a second leg 30b at a arranged on the end face 12a projection 12e of the rotary latch 12 is anchored (see. Fig. 3A ). The leg spring 30 acts on the rotary latch 12 with a biasing force, which pivots the catch 12 to unlock the striker in a clockwise direction, as shown in the Fig. 2 is explained in more detail.

Wie bereits beschrieben, wirkt die Sperrklinke 16 zur Sperrung der Drehfalle 12 mit der Mantelfläche 14 der Drehfalle 12 zusammen. Hierzu weist die Sperrklinke 16 einen Rastabschnitt 16c und eine Stützfläche 16d auf, die jeweils auf gegenüberliegenden Seiten eines dreieckigen Vorsprungs ausgebildet sind, wobei der Rastabschnitt 16c in einer zur Schwenkachse 16a annähernd tangentialen Richtung und die Stützfläche in einer zur Schwenkachse 16a annähernd radialen Richtung angeordnet ist (vgl. Fig. 5A). Durch die Vorspannkraft der Schenkelfeder 26 schwenkt die Sperrklinke 16 in Richtung der Drehfalle 12, so dass der Rastabschnitt 16c der Sperrklinke 16 die Drehfalle über den Sperrabschnitt 14a bzw. den Vorrastabschnitt 14b greift und die Drehfalle 12 sperrt (vgl. Fig. 3B).As already described, the pawl 16 acts to block the rotary latch 12 with the lateral surface 14 of the rotary latch 12 together. For this purpose, the pawl 16 has a latching portion 16c and a support surface 16d, which are respectively formed on opposite sides of a triangular projection, wherein the latching portion 16c is arranged in a direction approximately approximately tangential to the pivot axis 16a and the support surface in an approximately radial direction to the pivot axis 16a (see. Fig. 5A ). By the biasing force of the leg spring 26, the pawl 16 pivots in the direction of the rotary latch 12, so that the latching portion 16c of the pawl 16 engages the catch on the locking portion 14a and the pre-locking portion 14b and the catch 12 locks (see. Fig. 3B ).

Um die Sperrklinke 16 anzuheben, ist der Mitnehmer 17 an einem der Schwenkachse 16a gegenüberliegenden Ende der Sperrklinke 16 angeordnet. Der Mitnehmer 17 steht in einer zur Schwenkachse 16a parallelen Richtung von der Sperrklinke 16 ab und weist ein gekrümmtes Profil 17a auf. An einem der Schwenkachse 16a abgewandten Ende des gekrümmten Profils 17a weist der Mitnehmer 17 eine abgerundete Mitnehmerkante 17b sowie einen Nocken 17c auf, die zur Übertragung eine Schwenkbewegung von dem Auslösehebel 18 auf den Mitnehmer 17 dienen (vgl. Fig. 4 und 5). Der Nocken 17c ragt von dem gekrümmten Profil 17a hervor und umfasst eine Parkbucht 17d, die als annähernd würfelförmige Ausnehmung in dem Nocken 17c ausgebildet ist (vgl. Fig. 5B). Die Parkbucht 17d dient zur Herstellung eine Rastverbindung mit dem Auslösehebel 18, um die Sperrklinke 16 zu arretieren, wie nachfolgend näher erläutert wird.In order to lift the pawl 16, the driver 17 is arranged on one of the pivot axis 16 a opposite end of the pawl 16. The driver 17 is in a direction parallel to the pivot axis 16a direction of the pawl 16 and has a curved profile 17a. At an end of the curved profile 17a facing away from the pivot axis 16a, the driver 17 has a rounded driver edge 17b and a cam 17c, which serve for transmitting a pivoting movement from the release lever 18 to the driver 17 (cf. Fig. 4 and 5 ). The cam 17c protrudes from the curved profile 17a and comprises a parking bay 17d, which is formed as an approximately cube-shaped recess in the cam 17c (see FIG. Fig. 5B ). The parking bay 17 d is used for producing a latching connection with the release lever 18 in order to lock the pawl 16, as will be explained in more detail below.

Wie in Fig. 1 zu sehen ist, ist die plattenförmige Sperrklinke 16 an einem Ende an der Basisplatte 21 des Gehäuses 20 um eine Schwenkachse 16a dadurch schwenkbar gelagert, dass ein Bolzen 24 durch eine Öffnung 16b der Sperrklinke 16 und durch eine in der Basisplatte 21 ausgebildeten Öffnung 21c hindurchgreift. Eine Schenkelfeder 26 ist um den Bolzen 24 herumgewickelt und liegt mit einem ersten Schenkel 26a an einem Mitnehmer 17 der Sperrklinke 16 und mit einem zweiten Schenkel 26b an der rechten Seitenwand 20b des Gehäuses 20 an.As in Fig. 1 can be seen, the plate-shaped pawl 16 is pivotally mounted at one end to the base plate 21 of the housing 20 about a pivot axis 16a that a bolt 24 passes through an opening 16b of the pawl 16 and through an opening 21c formed in the base plate 21. A leg spring 26 is wound around the pin 24 and abuts with a first leg 26a on a driver 17 of the pawl 16 and with a second leg 26b on the right side wall 20b of the housing 20 at.

Außerdem zeigt Fig. 1 den Auslösehebel 18 des Kraftfahrzeugschlosses 10, der von einem Antriebsmotor 22 über ein Band 22a angetrieben wird (vgl. Fig. 3A), und dessen Bewegung die Sperrklinke 16 über den Mitnehmer 17 verschwenkt. Hierzu weist der Auslösehebel 18 zunächst einen kurvenförmigen Arm 18a auf, der an einem dem Auslösehebel 18 entfernt liegende Ende über einen Stift mit dem Band 22a des Antriebsmotors 22 verbunden ist.Also shows Fig. 1 the release lever 18 of the motor vehicle lock 10, which is driven by a drive motor 22 via a belt 22a (see. Fig. 3A ), and its movement pivots the pawl 16 via the driver 17. For this purpose, the trigger lever 18 initially has a curved arm 18a, which is connected at a the trigger lever 18 distal end via a pin with the belt 22a of the drive motor 22.

Der Auslösehebel 18 ist durch einen Bolzen 32, der durch eine Öffnung 18b des Auslösehebels 18 durchgreift, um eine Schwenkachse 18c (vgl. Fig. 2) an der Basisplatte 21 des Gehäuses 20 schwenkbar gelagert. An dem Bolzen 32 ist eine Schenkelfeder 34 mit zwei Schenkeln 34a, 34b angeordnet, die den Auslösehebel 18 mit einer Vorspannkraft beaufschlagt. Der erste Schenkel 34a der Schenkelfeder 34 ist mit der Basisplatte 21 des Gehäuses 20 fest verbunden und der zweite Schenkel 34b liegt an einem Vorsprung 18d des Auslösehebels 18 an.The trigger lever 18 is connected by a bolt 32, which passes through an opening 18b of the trigger lever 18, about a pivot axis 18c (see. Fig. 2 ) is pivotally mounted on the base plate 21 of the housing 20. On the bolt 32, a leg spring 34 with two legs 34a, 34b is arranged, which acts on the release lever 18 with a biasing force. The first leg 34a of the leg spring 34 is fixedly connected to the base plate 21 of the housing 20 and the second leg 34b abuts a projection 18d of the release lever 18.

Zur Übertragung der Schwenkbewegung auf den Mitnehmer 17 der Sperrklinke 16 weist der Auslösehebel ferner einen Mitnehmernocken 18e und einen Transportnocken 18f auf. Um die Sperrklinke 16 zu schwenken presst der blockförmige Transportnocken 18f gegen den Nocken 17c des Mitnehmers 17, und zur Arretierung der Sperrklinke verrastet der Transportnocken 18f mit der Parkbucht 17d des Mitnehmers 17.For transmitting the pivoting movement to the driver 17 of the pawl 16, the release lever further comprises a driver cam 18e and a transport cam 18f. To pivot the pawl 16 presses the block-shaped transport cam 18f against the cam 17c of the driver 17, and for locking the pawl of the transport cam 18f locked to the parking bay 17d of the driver 17th

Des Weiteren weist der Auslösehebel 18 einen mit der Sperrklinke 16 zusammenwirkenden Sperrnocken 18g auf, der verhindert, dass die Sperrklinke 16 die Sperr- bzw. Vorraststellung verlässt (vgl. Fig. 3B).Furthermore, the release lever 18 has a locking cam 18g cooperating with the pawl 16, which prevents the pawl 16 from leaving the blocking or pre-locked position (cf. Fig. 3B ).

In der nachfolgenden Beschreibung werden zunächst die Stellungen der Sperrklinke 16 und der Drehfalle 12, sowie der Öffnungsprozess des Kraftfahrzeugschlosses 10 anhand von Fig. 2 erläutert.In the following description, first, the positions of the pawl 16 and the rotary latch 12, and the opening process of the motor vehicle lock 10 based on Fig. 2 explained.

In Fig. 2 sind die Drehfalle 12, die Sperrklinke 16 und der Auslösehebel 18 mit ihren Schwenkachsen 12d, 16a, 18c und ihren Vorspannkräften rein schematisch dargestellt. Um zu verhindern, dass die Drehfalle 12 durch ihre Vorspannkraft in die Offenstellung N schwenkt, wirkt die Vorspannkraft der Sperrklinke 16 in einer entgegengesetzten Richtung zu der Vorspannkraft der Drehfalle 12.In Fig. 2 are the rotary latch 12, the pawl 16 and the release lever 18 with its pivot axes 12d, 16a, 18c and their biasing forces shown purely schematically. In order to prevent the rotary latch 12 pivots by its biasing force in the open position N, the biasing force of the pawl 16 acts in an opposite direction to the biasing force of the rotary latch 12th

Wenn das Kraftfahrzeugschloss 10 die Heckklappe verriegelt, z. B. während des Fahrbetriebs des Kraftfahrzeugs, befinden sich die Drehfalle 12 in der Schließstellung L und die Sperrklinke 16 in der Sperrstellung A, und der Rastabschnitt 16c der Sperrklinke 16 und der Sperrabschnitt 14a der Mantelfläche 14 wirken zusammen (vgl. Fig. 3A).If the motor vehicle lock 10 locks the tailgate, z. B. during driving of the motor vehicle, the catch 12 in the closed position L and the pawl 16 in the locked position A, and the latching portion 16c of the pawl 16 and the locking portion 14a of the lateral surface 14 act together (see. Fig. 3A ).

Um den Schließbügel zu entriegeln, wird der Auslösehebel 18 durch den Antriebsmotor 22 entgegen seiner Vorspannkraft, also im Uhrzeigersinn, geschwenkt, bis der Auslösehebel 18 mit seinem Mitnehmernocken 18e gegen den Mitnehmer 17 fährt. Der Mitnehmer 17 und dementsprechend die Sperrklinke 16 werden durch den Auslösehebel 18 geschwenkt, bis die Sperrklinke 16 die Sperrstellung A verlässt, und der Sperrabschnitt 14a der Mantelfläche 14 und der Rastabschnitt 16c der Sperrklinke 16 außer Eingriff gelangen. Dann schwenkt die Drehfalle 12 aufgrund ihrer Vorspannkraft in die Vorschließstellung M.To unlock the striker, the release lever 18 is pivoted by the drive motor 22 against its biasing force, ie clockwise, until the release lever 18 moves with its drive cam 18e against the driver 17. The driver 17 and accordingly the pawl 16 are pivoted by the release lever 18 until the pawl 16 leaves the blocking position A, and the locking portion 14a of the lateral surface 14 and the latching portion 16c of the pawl 16 are disengaged. Then, the rotary latch 12 pivots due to their biasing force in the Vorschließstellung M.

Die Vorschließstellung M der Drehfalle 12 dient beispielsweise als eine Sicherung gegen eine Entriegelung der Heckklappe aufgrund einer versehentlichen Betätigung des Kraftfahrzeugschlosses 10. In der Vorschließstellung greift der Gabelabschnitt 12a durch die Öse des Schließbügels und sichert diesen. Die Sperrklinke 16 befindet sich in in der Vorraststellung B, in der der Rastabschnitt 16c die Drehfalle 12 über den Vorrastabschnitt 14b der Mantelfläche 14 sperrt.The Vorschließstellung M of the catch 12 is used for example as a safeguard against unlocking the tailgate due to accidental actuation of the motor vehicle lock 10. In the prelocking the fork portion 12a engages through the eye of the striker and secures it. The pawl 16 is located in the pre-locking position B, in which the latching portion 16c locks the catch 12 via the pre-locking portion 14b of the lateral surface 14.

Um den Schließbügel freizugeben, wird der Auslösehebel 18 weiter durch den Antriebsmotor 22 geschwenkt, wodurch der Auslösehebel 18 die Sperrklinke 16 über den Mitnehmer 17 aus der Vorraststellung B schwenkt. Dadurch gelangen der Rastabschnitt 16c und der Vorrastabschnitt 14b der Mantelfläche 14 außer Eingriff, und die Drehfalle 12 schwenkt aufgrund ihrer Vorspannkraft in die Offenstellung N, in der die Drehfalle 12 den Schließbügel freigibt und die Heckklappe entriegelt. Durch dieses Öffnen der Drehfalle 12 in die Offenstellung fährt der Stützabschnitt 14c der Mantelfläche 14 auf die Stützfläche 16d der Sperrklinke 16 und rückt die Sperrklinke 16 in der Entsperrungsstellung D, in der die Sperrklinke 16 die Drehfalle 12 nicht sperren kann.To release the striker, the trigger lever 18 is further pivoted by the drive motor 22, whereby the release lever 18, the pawl 16 pivots about the driver 17 from the pre-locked position B. As a result, the latching portion 16c and the Vorrastabschnitt 14b of the lateral surface 14 are disengaged, and the rotary latch 12 pivots due to their biasing force in the open position N, in which the catch 12 releases the striker and unlocks the tailgate. By this opening of the rotary latch 12 in the open position of the support portion 14c of the lateral surface 14 moves to the support surface 16d of the pawl 16 and moves the pawl 16 in the unlocked position D, in which the pawl 16 can not lock the catch 12.

Anhand der Fig. 3 bis 8 wird nun die Funktionsweise der Sperrklinkenarretierung erläutert.Based on Fig. 3 to 8 The operation of the pawl lock will now be explained.

Fig. 3A zeigt die Drehfalle 12 in der Schließstellung L und die Sperrklinke 16 in der Sperrstellung A. In dieser Stellung bildet der Gabelabschnitt 12b der Drehfalle 12 eine umfänglich geschlossene Öffnung mit der Ausnehmung 21b der Basisplatte 21, in der ein nicht gezeigter Schließbügel verriegelt werden kann. Fig. 3A shows the catch 12 in the closed position L and the pawl 16 in the locked position A. In this position, the fork portion 12b of the catch 12 forms a circumferentially closed opening with the recess 21b of the base plate 21, in which a closing bracket, not shown, can be locked.

In Fig. 3A ist der Mitnehmer 17 mit der Mitnehmerkante 17b und dem Nocken 17c deutlich zu erkennen. Die Mitnehmerkante 17b ist relativ zum Mitnehmernocken 18e des Auslösehebels derart angeordnet, dass die Mitnehmerkante 17b in einer Rotationsbahn des Mitnehmernockens 18e um die Schwenkachse 18c liegt, d. h. bei einem Schwenken des Mitnehmernockens 18e um die Schwenkachse 18c stößt der Mitnehmernocken 18e auf die Mitnehmerkante 17b und schiebt den Mitnehmer entlang der Rotationsbahn (vgl. Fig. 4). Analog ist der Nocken 17c mit der Parkbucht 17d entlang einer Rotationsbahn des Transportnockens 18f angeordnet.In Fig. 3A the driver 17 with the driver edge 17b and the cam 17c can be clearly seen. The driver edge 17b is arranged relative to the driver cam 18e of the release lever such that the driver edge 17b lies in a rotational path of the driver cam 18e about the pivot axis 18c, ie upon pivoting of the driving cam 18e about the pivot axis 18c, the driving cam 18e abuts on the driving edge 17b and pushes the driver along the rotational path (cf. Fig. 4 ). Similarly, the cam 17c is arranged with the parking bay 17d along a rotational path of the transport cam 18f.

Fig. 3B zeigt eine vergrößerte Rückansicht des durch einen Kreis markierten Bereichs der Fig. 3A. Dasselbe gilt für die Figuren 4 bis 8. Fig. 3B shows an enlarged rear view of the marked by a circle region of Fig. 3A , The same goes for the FIGS. 4 to 8 ,

In Fig. 3B ist zu erkennen, dass der am unteren Bereich des Auslösehebels 18 ausgebildete Sperrnocken 18g gegen einen Vorsprung 16e der Sperrklinke 16 anliegt. Somit sitzt der Sperrnocken 18g im Schwenkweg der Sperrklinke 16 und verhindert, dass die Sperrklinke 16 die Sperrstellung A verlässt, bevor der Sperrnocken 18g weg bewegt wird.In Fig. 3B It can be seen that the locking cam 18g formed at the lower region of the release lever 18 rests against a projection 16e of the pawl 16. Thus, the locking cam 18g sits in the pivoting path of the pawl 16 and prevents the pawl 16, the locking position A leaves before the locking cam 18g is moved away.

Des Weiteren wird im unteren Bereich der Fig. 3B die funktionswirksame Berührung der Sperrklinke 16 und der Mantelfläche 14 der Drehfalle 12 gezeigt. Dabei sitzt die Drehfalle 12 mit dem Sperrabschnitt 14a auf dem Rastabschnitt 16c der Sperrklinke 16 und wird entgegen ihrer Vorspannkraft in der Schließstellung L gehalten. Wenn die Sperrklinke aus der Sperrstellung A, also gegen den Uhrzeigersinn, geschwenkt wird, bewegen sich der Sperrabschnitt 14a und der Rastabschnitt 16c auseinander und gelangen außer Eingriff, so dass die Sperrklinke 16 die Drehfalle 12 nicht mehr in der Schließstellung L sperrt.Furthermore, at the bottom of the Fig. 3B the functionally effective contact of the pawl 16 and the lateral surface 14 of the rotary latch 12 is shown. In this case, the rotary latch 12 is seated with the locking portion 14a on the latching portion 16c of the pawl 16 and is held against its biasing force in the closed position L. When the pawl from the blocking position A, ie counterclockwise, is pivoted, the locking portion 14a and the latching portion 16c move apart and disengage, so that the pawl 16 no longer locks the catch 12 in the closed position L.

In Fig. 4 wird insbesondere das Zusammenwirken zwischen der Mitnehmerkante 17b und dem Mitnehmernocken 18e des Auslösehebels 18 am Beginn des Öffnungsprozesses dargestellt. Dabei befinden sich die Drehfalle 12 in der Schließstellung L und die Sperrklinke in der Sperrstellung A.In Fig. 4 In particular, the interaction between the driving edge 17b and the driving cam 18e of the trigger lever 18 is shown at the beginning of the opening process. In this case, the rotary latch 12 are in the closed position L and the pawl in the blocking position A.

Zunächst fängt der Antriebsmotor 22 an zu drehen, und verkürzt das Band 22a dadurch, dass er das Band 22a um eine nicht dargestellte Bandspule wickelt. Durch das Verkürzen des Bandes 22a wird der Auslösehebel 18 über den mit dem Band 22a verbundenen Arm 18a an den Antriebsmotor 22 herangezogen (vgl. Fig. 3A), und nur der Auslösehebel 18 wird im Uhrzeigersinn geschwenkt, wodurch der Sperrnocken 18g von dem Vorsprung 16e der Sperrklinke 16 weggeschwenkt wird, wie in Fig. 4B dargestellt ist. Dann ist ein Schwenken der Sperrklinke 16 aus der Sperrstellung A möglich (vgl. mit dem Sperrnocken 18g in Fig. 5B).First, the drive motor 22 starts rotating, and shortens the belt 22a by winding the belt 22a around a tape reel (not shown). By shortening the band 22a, the release lever 18 is pulled over the arm 18a connected to the band 22a to the drive motor 22 (see FIG. Fig. 3A ), and only the trigger lever 18 is pivoted clockwise, whereby the locking cam 18g is pivoted away from the projection 16e of the pawl 16, as in Fig. 4B is shown. Then a pivoting of the pawl 16 from the blocking position A is possible (see, with the locking cam 18g in Fig. 5B ).

Nach einer gewissen Schwenkung, z. B. von 11 Grad, stößt der Mitnehmernocken 18e auf die Mitnehmerkante 17b, da die Mitnehmerkante 17b entlang der Rotationsbahn des Mitnehmernockens 18e liegt. Wenn der Auslösehebel 18 durch den Antriebsmotor 22 weiter geschwenkt wird, schiebt der Mitnehmernocken 18e den Mitnehmer 17 über die Mitnehmerkante 17b, und die Sperrklinke 16 verlässt die Sperrstellung A.After a certain swing, z. B. 11 degrees, the driving cam 18e abuts on the Mitnehmerkante 17b, since the Mitnehmerkante 17b along the rotational path of the Mitnehmerockens 18e. When the trigger lever 18 is further pivoted by the drive motor 22, the drive cam 18e pushes the driver 17 over the driver edge 17b, and the pawl 16 leaves the locked position A.

In Fig. 5A ist der Zustand dargestellt, in dem die Sperrklinke 16 die Sperrstellung A verlassen hat und die Mantelfläche 14 und die Sperrklinke 16 außer Eingriff sind. Gemäß der Beschreibung der Fig. 2 sollte die Drehfalle 12 aufgrund ihrer Vorspannkraft die Schließstellung L verlassen. Dies passiert jedoch nicht, wenn eine äußere Kraft auf die Heckklappe wirkt. Die äußere Kraft kann z. B. die Gewichtskraft einer auf einer Fahrzeugheckklappe angesammelten Schneeschicht sein. Diese Gewichtskraft wirkt dem Öffnen der Heckklappe entgegen, wodurch die Drehfalle 12 nicht aus der Schließstellung L schwenkt, da sich die Heckklappe nicht in Öffnungsrichtung bewegt.In Fig. 5A the state is shown in which the pawl 16 has left the blocking position A and the lateral surface 14 and the pawl 16 are disengaged. According to the description of Fig. 2 should the catch 12 leave the closed position L due to its biasing force. However, this does not happen when an external force acts on the tailgate. The external force can z. B. be the weight of an accumulated on a vehicle tailgate snow layer. This weight counteracts the opening of the tailgate, whereby the rotary latch 12 does not pivot out of the closed position L, since the tailgate does not move in the opening direction.

Wenn die Sperrklinke 16 bei geschlossener Drehfalle 12 aufgrund ihrer Vorspannkraft zurück in die Sperrstellung A schwenken würde, würde der Rastabschnitt 16c die Mantelfläche 14 unter dem Sperrabschnitt 14a greifen, die Drehfalle 12 würde durch die Sperrklinke 16 gesperrt, und der Öffnungsprozess würde unerwünscht abgebrochen. Um den Öffnungsprozess in solchen Fällen dennoch zu ermöglichen, wird die Sperrklinke 16 mittels der Sperrklinkenarretierung arretiert (vgl. Fig. 7B).If the pawl 16 would pivot with locked catch 12 due to their biasing force back into the locking position A, the locking portion 16c would grip the lateral surface 14 under the locking portion 14a, the catch 12 would be blocked by the pawl 16, and the opening process would be undesirable canceled. In order to still allow the opening process in such cases, the pawl 16 is locked by means of pawl lock (see. Fig. 7B ).

Wie Fig. 5B zeigt, presst der Auslösehebel 18 mit dem Transportnocken 18f hierzu gegen eine Kante der Parkbucht 17d, die in dem Nocken 17c des Mitnehmers 17 angeordnet ist. Im Gegensatz zu dem in Fig. 4 gezeigten Zustand presst der Mitnehmernocken 18e nicht auf die Mitnehmerkante 17b (vgl. Fig. 5A), weil die Schwenkbewegung von dem Mitnehmernocken 18e auf den Transportnocken 18f übergeben wurde.As Fig. 5B shows the trigger lever 18 presses with the transport cam 18f against an edge of the parking bay 17d, which is arranged in the cam 17c of the driver 17. Unlike the in Fig. 4 shown state of the drive cam 18e does not press on the driver edge 17b (see. Fig. 5A ), because the pivotal movement was transferred from the drive cam 18 e on the transport cam 18 f.

In Fig. 6 wird die Sperrklinke 16 durch den Auslösehebel 18 weiter geschwenkt. Insbesondere zeigt Fig. 6B, die Position des Transportnockens 18f, in welcher der Transportnocken 18f sich fast innerhalb der Parkbucht 17d befindet (vgl. Fig. 5B). Bei einer weiteren Bewegung des Auslösehebels 18 gegen den Uhrzeigersinn rutscht der Transportnocken 18f in die Parkbucht 17d hinein (vgl. Fig. 7B).In Fig. 6 the pawl 16 is further pivoted by the release lever 18. In particular shows Fig. 6B , the position of the transport cam 18f in which the transportation cam 18f is almost within the parking bay 17d (see FIG. Fig. 5B ). In a further movement of the trigger lever 18 counterclockwise, the transport cam 18f slips into the parking bay 17d (see. Fig. 7B ).

Fig. 7 stellt die wirksame Sperrklinkenarretierung dar, also der Zustand, in dem die Sperrklinke 16 durch die Rastverbindung zwischen dem Transportnocken 18f des Auslösehebels und der Parkbucht 17d des Mitnehmers 17 arretiert ist. Bei der wirksamen Sperrklinkenarretierung befindet sich die Sperrklinke 16 in der Freigabestellung C, in der die Sperrklinke 16 die Drehfalle 12 freigibt. In der Freigabestellung C befindet sich die Sperrklinke 16 gleichzeitig in einer Überhub-Position. Das bedeutet, dass die Sperrklinke 16 so weit von der Drehfalle 12 weg geschwenkt wird, dass die Drehfalle 12 bei einem Schwenken aus der Schließstellung nicht mit der Sperrklinke 16 verrastet. Fig. 7 represents the effective Sperrklinkenarretierung, ie the state in which the pawl 16 is locked by the latching connection between the transport cam 18f of the release lever and the parking bay 17d of the driver 17. In the effective pawl lock is the pawl 16 in the release position C, in which the pawl 16, the catch 12 releases. In the release position C, the pawl 16 is simultaneously in an overstroke position. This means that the pawl 16 is pivoted so far away from the rotary latch 12, that the rotary latch 12 is not latched with the pawl 16 when pivoting from the closed position.

Außerdem ragt der Mitnehmer 17 der Sperrklinke 16 in der Freigabestellung C mit dem Nocken 17c aus einem in der rechten Seitenwand 20b gebildeten Fenster, wodurch das Gehäuse 20 kompakt und symmetrisch realisiert werden kann.In addition, the driver 17 of the pawl 16 projects in the release position C with the cam 17c from a window formed in the right side wall 20b, whereby the housing 20 can be realized compact and symmetrical.

In Fig. 7B ist die Rastverbindung genauer dargestellt. Bei der Rastverbindung ist der Transportnocken 18f in der Parkbucht 17d des Mitnehmers 17 angeordnet. Die Rastverbindung wirkt entgegen der Vorspannkraft der Sperrklinke 16 und die Sperrklinke 16 kann nicht zurück in die Sperrstellung schwenken. Durch die Rastverbindung wird also verhindert, dass die Sperrklinke 16 die Freigabestellung verlässt, bis die Drehfalle 12 die Offenstellung N erreicht hat, und der Öffnungsprozess des Kraftfahrzeugschlosses 10 wird auch bei Einwirkung einer äußeren Gewichtskraft auf der Heckklappe gewährleistet.In Fig. 7B the locking connection is shown in more detail. In the latching connection, the transport cam 18f is arranged in the parking bay 17d of the driver 17. The latching connection acts counter to the biasing force of the pawl 16 and the pawl 16 can not pivot back into the blocking position. By the latching connection is thus prevented that the pawl 16 leaves the release position until the catch 12 has reached the open position N, and the opening process of the motor vehicle lock 10 is ensured even when exposed to an external weight on the tailgate.

Fig. 8 zeigt das Kraftfahrzeugschloss 10 mit der Drehfalle 12 in der Offenstellung L und der Sperrklinke 16 in der Entsperrungsstellung D. Dieser Zustand ist am Ende des Öffnungsprozesses sowie nach Auflösung der Sperrklinkenarretierung gegeben. Fig. 8 shows the motor vehicle lock 10 with the catch 12 in the open position L and the pawl 16 in the unlocked position D. This state is given at the end of the opening process and after the disengagement of the pawl detent.

Wie in Fig. 8A zu sehen ist, wird durch das Öffnen der Drehfalle 12 der Gabelabschnitt 12b auf die Basisplatte 21 des Gehäuses 20 zurückgezogen, sodass die Ausnehmung 21b der Basisplatte 21 freigegeben ist.As in Fig. 8A can be seen, is retracted by opening the catch 12 of the fork portion 12b on the base plate 21 of the housing 20, so that the recess 21b of the base plate 21 is released.

Im unteren Bereich der Fig. 8B ist das Zusammenwirken des Stützabschnitts 14c und der Stützfläche 16d gezeigt. Um diesen Zustand zu erreichen, wird zunächst die Kulisse 14d beim Öffnen der Drehfalle 12 auf die Stützfläche 16d der Sperrklinke 16 gefahren und die arretierte Sperrklinke 16 wird dadurch etwas entgegen ihrer Vorspannkraft bewegt. Dieses Bewegen löst die Rastverbindung zwischen dem Transportnocken 18f und der Parkbucht 17d, wie im oberen Bereich der Fig. 8B dargestellt ist. Die Drehfalle 12 dreht weiter, bis der Stützabschnitt 14c auf der Stützfläche 16d zum Liegen kommt, und die Sperrklinke 16 in die Entsperrungsstellung D bewegt wird.At the bottom of the Fig. 8B the cooperation of the support portion 14c and the support surface 16d is shown. To achieve this state, the gate 14d is first moved when opening the rotary latch 12 on the support surface 16d of the pawl 16 and the locked pawl 16 is thereby moved slightly counter to its biasing force. This movement releases the latching connection between the transport cam 18f and the parking bay 17d, as in the upper region of the Fig. 8B is shown. The catch 12 continues to rotate until the support portion 14c comes to rest on the support surface 16d, and the pawl 16 is moved to the unlocked position D.

Wenn die Drehfalle 12 wieder in die Schließ- bzw. Vorschließstellung bewegt wird, wird die Sperrklinke 16 durch ihre Vorspannkraft in die Sperr- bzw. Vorraststellung geschwenkt, um die Drehfalle 12 zu sperren.When the catch 12 is again moved to the closing or prelocking position, the pawl 16 is pivoted by its biasing force in the locking or Vorraststellung to lock the catch 12.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
KraftfahrzeugschlossMotor vehicle lock
1212
Drehfallecatch
12a12a
Stirnflächeface
12b12b
Gabelabschnittfork portion
12c12c
Öffnungopening
12d12d
Schwenkachseswivel axis
12e12e
Vorsprunghead Start
1414
Mantelflächelateral surface
14a14a
Sperrabschnittblocking portion
14b14b
VorrastabschnittVorrastabschnitt
14c14c
Stützabschnittsupport section
14d14d
Kulissescenery
1616
Sperrklinkepawl
16a16a
Schwenkachseswivel axis
16b16b
Öffnungopening
16c16c
Rastabschnittdetent portion
16d16d
Stützflächesupport surface
16e16e
Vorsprunghead Start
1717
Mitnehmertakeaway
17a17a
Profilprofile
17b17b
Mitnehmerkanteentrainment
17c17c
Nockencam
17d17d
ParkbuchtPark bay
1818
Auslösehebelsear
18a18a
Armpoor
18b18b
Öffnungopening
18c18c
Schwenkachseswivel axis
18d18d
Vorsprunghead Start
18e18e
Mitnehmernockendriver cams
18f18f
Transportnockentransport cams
18g18g
Sperrnockenlocking cam
2020
Gehäusecasing
20a, 20b20a, 20b
Seitenwändeside walls
2121
Basisplattebaseplate
21a21a
Öffnungopening
21b21b
Ausnehmungrecess
21c21c
Öffnungopening
2222
Motorengine
22a22a
Bandtape
24, 28, 3224, 28, 32
Bolzenbolt
26, 30, 3426, 30, 34
SchenkelfederLeg spring
26a, 30a, 34a26a, 30a, 34a
erster Schenkelfirst leg
26b, 30b, 34b26b, 30b, 34b
zweiter Schenkelsecond leg
AA
Sperrstellungblocking position
BB
Vorraststellungpreliminary latch
CC
Freigabestellungrelease position
DD
EntsperrungsstellungEntsperrungsstellung
LL
Schließstellungclosed position
MM
Vorschließstellungpreclosing
NN
Offenstellungopen position

Claims (12)

  1. A motor vehicle lock (10) comprising
    a pivotable catch (12) with a jacket surface (14);
    a pawl (16) which is acted on by a preloading force and which is pivotable between a blocking position (A) in which the pawl (16) blocks the catch (12) and an unblocking position (D) in which the catch (12) is unblocked;
    a release lever (18) for pivoting the pawl (16) against the preloading force; and
    an arresting device for arresting the pawl (16) in a release position (C) in which it releases the catch (12),
    wherein a part of the arresting device is formed by the release lever (18) and the release lever (18) has a driver cam (18e) via which the release lever (18) pivots the pawl (16) out of the blocking position (A),
    characterized in that
    the release lever (18) has a transport cam (18f) which pivots the pawl (16) over a cam (17c) arranged at the pawl (16) into the unblocking position (D).
  2. A motor vehicle lock (10) in accordance with claim 1,
    characterized in that
    the release position (C) is located between the blocking position (A) and the unblocking position (D).
  3. A motor vehicle lock (10) in accordance with claim 1 or claim 2,
    characterized in that,
    in the release position (C), the pawl (16) is located in an overlifting position in which it allows a complete opening of the catch (12).
  4. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the catch (12) moves into functionally effective contact with the pawl (16) only via its jacket surface (14).
  5. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the catch (12) has a link (14d) for releasing the arresting device from the release position (C).
  6. A motor vehicle lock (10) in accordance with claim 5,
    characterized in that
    the link (14d) is arranged at the jacket surface (14) of the catch (12).
  7. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the arresting device has a latch connection between the cam (17c) of the pawl (16) and the transport cam (18f).
  8. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the pawl (16) has a driver (17) at which the cam (17c) is arranged.
  9. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that
    the jacket surface (14) of the catch (12) has
    a blocking section (14a) which cooperates in the blocking position (A) with a latching section (16c) of the pawl (16);
    a prelatching section (14b) which cooperates in a prelatching position (B) with the latching section (16c) of the pawl (16); and
    a support section (14c) which cooperates in the unblocking position (D) with a support surface (16d) of the pawl (16).
  10. A motor vehicle lock (10) in accordance with claim 9,
    characterized in that
    the blocking section (14a), the prelatching section (14b) and the support section (14c) are arranged one after the other at the jacket surface (14).
  11. A motor vehicle lock (10) in accordance with claim 9 or claim 10,
    characterized in that
    the release lever (18) has a blocking cam (18g) which blocks the pawl (16) against a pivoting against the preloading force in the blocking position (A) and/or in the prelatching position (B).
  12. A motor vehicle lock (10) in accordance with at least one of the preceding claims,
    characterized in that,
    in the release positon (C), a part of the pawl (16) projects through a window which is formed in a housing (20) of the motor vehicle lock (10).
EP13182616.6A 2013-09-02 2013-09-02 Motor vehicle lock Active EP2843168B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13182616.6A EP2843168B1 (en) 2013-09-02 2013-09-02 Motor vehicle lock
US14/472,711 US9869113B2 (en) 2013-09-02 2014-08-29 Vehicle lock
CN201410443989.3A CN104420737B (en) 2013-09-02 2014-09-02 Motor vehicle lock
US15/852,117 US20180119461A1 (en) 2013-09-02 2017-12-22 Motor Vehicle Lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13182616.6A EP2843168B1 (en) 2013-09-02 2013-09-02 Motor vehicle lock

Publications (2)

Publication Number Publication Date
EP2843168A1 EP2843168A1 (en) 2015-03-04
EP2843168B1 true EP2843168B1 (en) 2018-11-28

Family

ID=49083573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13182616.6A Active EP2843168B1 (en) 2013-09-02 2013-09-02 Motor vehicle lock

Country Status (3)

Country Link
US (2) US9869113B2 (en)
EP (1) EP2843168B1 (en)
CN (1) CN104420737B (en)

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EP3812541A1 (en) 2019-10-24 2021-04-28 Kiekert AG Motor vehicle lock, in particular vehicle boot lid

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Publication number Priority date Publication date Assignee Title
DE102015108739A1 (en) * 2015-06-02 2016-12-08 Kiekert Ag Method for controlling a motor vehicle door lock
DE102015108738A1 (en) * 2015-06-02 2016-12-08 Kiekert Ag Motor vehicle door lock
CN107044232B (en) * 2017-06-05 2024-04-05 麦格纳汽车系统(苏州)有限公司 Outer release mechanism of central control lock
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Also Published As

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US20180119461A1 (en) 2018-05-03
EP2843168A1 (en) 2015-03-04
CN104420737A (en) 2015-03-18
US9869113B2 (en) 2018-01-16
US20150184432A1 (en) 2015-07-02
CN104420737B (en) 2018-06-12

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