MOTOR VEHICLE LATCH

Abstract

A method for closing and opening a motor vehicle door and a motor vehicle latch having a locking mechanism with a catch and at least one pawl, wherein a rotary movement of the catch can be locked in at least one latching position by means of the pawl, a drive device, with which the pawl can be transferred from a latching position into a release position for the catch, and a closing device, by means of which the pawl can be transferred from a latching position into a release position for the catch, and a closing device, it being possible by means of the closing device to transfer the latch from a pre-ratchet position into a main ratchet position, and it being possible by means of the drive device to control a coupling element in such a way that the vehicle part can be set up by means of the closing device.

Claims

1. A motor vehicle lock for a motor vehicle, the motor vehicle lock comprising: a locking mechanism with a catch and at least one pawl, wherein a rotary movement of the catch is locked in at least one locking position by the pawl, a drive mechanism that drives the pawl to transfer the pawl from a blocking position with the catch in the at least one locking position into a release position for the catch, a closing device, wherein the at least one locking position include a pre-ratchet position and a main ratchet position, and the locking mechanism is transferred from the pre-ratchet position into the main ratchet position by the closing device, and a coupling element that is controlled by the drive mechanism in such a way that a position of a vehicle part different from the locking mechanism is set by the closing device.

2. The motor vehicle lock according to claim 1, wherein the closing device is received in the motor vehicle at least in regions independent of the motor vehicle lock.

3. The motor vehicle lock according to claim 1, wherein the coupling element provides an operative connection between a raising device for the vehicle part and the closing device.

4. The motor vehicle lock according to claim 3, wherein the closing device is mechanically coupled to the raising device by the coupling element.

5. The motor vehicle lock according to claim 3, wherein the vehicle part is holdable by an erector of the raising device.

6. The motor vehicle lock according to claim 5, wherein the raising device includes a divider that is engageable with a lock holder for holding the catch.

7. The motor vehicle lock according to claim 1, wherein the catch is transferred from the release position into the main latching position by the closing device.

8. The motor vehicle lock according to claim 1, wherein the closing device is directly engageable with the catch.

9. The motor vehicle lock according to claim 1, wherein the coupling element comprises a mechanical coupling with a sliding element.

10. The motor vehicle lock according to claim 1, wherein the coupling element has a coupling for a Bowden cable receptacle of the closing device.

11. A method for closing a vehicle part of a motor vehicle which can be closed by means of a motor vehicle latch, in which a locking mechanism of a motor vehicle latch is unlocked by means of a drive device, and the vehicle part is transferred into a latching position by means of a closing device, and in which the closing device is then coupled to a setting-up mechanism by means of the drive device.

12. The motor vehicle lock according to claim 1, wherein the closing device includes an electric drive to transfer the locking mechanism from the pre-ratchet position into the main ratchet position.

13. The motor vehicle lock according to claim 1, wherein the drive mechanism includes a gear that moves the pawl from the blocking position.

14. The motor vehicle lock according to claim 6, wherein the divider is arranged parallel to the catch.

15. The motor vehicle lock according to claim 1, wherein the closing device is connected to the locking mechanism by a Bowden cable.

Description

[0031] In the drawings:

[0032] FIG. 1 shows a top view of a motor vehicle with a side door in an open position;

[0033] FIG. 2 a detailed view of the side door in the open position as shown in FIG. 1, and in particular view II, in a sectional view showing the principle arrangement between a motor vehicle latch located in the side door and an raising device, the raising device cooperating with a lock holder; and

[0034] FIG. 3 shows a basic sketch of the interaction between the closing drive, the drive unit, the coupling element, the closing mechanism and the set-up mechanism.

[0035] FIG. 1 shows a top view of a motor vehicle 1 shown in principle. The motor vehicle 1 has a front area 2, a rear area 3 and a side door 4. The motor vehicle side door 4 is shown in an open position, the open position being characterized by the fact that there is an opening gap S between the motor vehicle body 5 and the side door 4. In the area of the opening gap S, a lock holder 6 can be seen, which in this exemplary embodiment is designed as a locking bolt 6. Even though in this exemplary embodiment the raising device is reproduced using the example of a motor vehicle door 4, this is not limiting. It is also possible to use the raising device, for example, for a tailgate 7 located in the rear of the motor vehicle 3 or, for example, for an engine hood 8 located in the area of the front of the motor vehicle.

[0036] FIG. 2 shows an enlarged view of detail II from FIG. 1 in the area of the lock holder 6. Identical components are given the same reference numbers in the figures. For better clarification of the arrangement of the raising device 9, detailed view II is reproduced in a section through the motor vehicle 1 above the latch holder 6. The raising device 9 is integrated into a motor vehicle door latch 10 and has an upright 11, the upright 11 cooperating directly with the latch holder 6. In this embodiment, the divider 11 is integrated and movably arranged in the raising device 9 in such a way that the divider 11 can be moved out of the motor vehicle door latch 10 and the motor vehicle door (4). A door seal 12 is attached to a bend 13 of the motor vehicle body 5. The door seal 12 preferably circumferentially surrounds the motor vehicle door 4 and seals the interior of the motor vehicle 1 from the environment. In addition to this sealing function, the door seal 12 generates a force on the door lock integrated in the motor vehicle door 4 and in particular the locking mechanism, insofar as the motor vehicle door 4 is in the fully closed locking position.

[0037] This door seal pressure can be used by the motor vehicle door latch 10 to open the latch by merely removing the pawl from the catch and allowing the door seal force or door seal pressure to cause the catch to move, that is, to open the locking mechanism. Subsequently, the raising device 9 then moves the motor vehicle door 4 completely to the open position, resulting in the opening gap S.

[0038] FIG. 3 now shows in principle the arrangement of the motor vehicle door latch 10 in relation to a closing device 13. The closing device 13 is arranged here at a distance from the motor vehicle latch 10, and is connected to the motor vehicle latch 10, for example by means of a Bowden cable 14. A drive device 15, a coupling element 16, a closing mechanism 17 and an installation mechanism 18 are integrated in the motor vehicle latch 10. A divider 11 is movable out of the motor vehicle latch 10 and into the motor vehicle latch 10.

[0039] If the motor vehicle latch 10 or the motor vehicle door 4 is now in the position shown in FIG. 2, the closing device 13 is connected to the opening mechanism 18 via the coupling element 16. The divider 11 is in the extended position. If the motor vehicle door 4 is now gripped by the operator and opened completely, the closing device 13 moves the spring 11 back into the retracted position into the initial position. The drive unit then actuates the coupling element and couples the closing device 13 to the closing mechanism 17. If the operator now moves the motor vehicle door back to the closed position, with the catch moving to a pre-ratchet position, the closing device 13 and the associated closing mechanism 17 can be used to transfer the locking mechanism from a pre-ratchet position to a main ratchet position. The closing device 13 can therefore be used as required to pull or set up the motor vehicle door. In other words, the force flow of the actuator or the closing device 13 can be coupled via the coupling element 16 to the respective functional components 17 and 18. This is why, no additional actuator is necessary, since the drive device 15, which usually initializes an electrical opening, is used for coupling the closing or installation mechanism 17 and 18.

[0040] According to the invention, the closing device 13 can therefore be used to set up the side door 4 and to pull the locking mechanism. Both comfort functions are therefore carried out by existing components, so that comfort functions can be provided with a minimum of design resources, with little installation space and thus at low cost.

LIST OF REFERENCE SIGNS

[0041] 1 motor vehicle [0042] 2 Front area [0043] 3 Rear area [0044] 4 Motor vehicle door [0045] 5 Vehicle body [0046] 6 Lock holder [0047] 7 Tailgate [0048] 8 Engine hood [0049] 9 Raising device [0050] 10 Motor vehicle latch [0051] 11 Divider [0052] 12 Door seal [0053] 13 Closing device [0054] 14 Bowden cable [0055] 15 Drive device [0056] 16 Clutch element [0057] 17 Closing mechanism [0058] 18 Installation mechanism [0059] S Opening gap