Abstract
A motor vehicle lock, in particular an electrically actuatable motor vehicle lock, comprising a locking mechanism having a rotary latch and at least one pawl, a release lever, wherein the release lever can be actuated by means of an electric drive unit and at least one manually actuatable actuating lever, and wherein the release lever interacts with the locking mechanism in such a way that a blocked locking mechanism can be unblocked, and a locking unit, wherein manual unblocking of the locking mechanism can be prevented by means of the locking unit, and wherein simultaneous locking of the actuating lever and unblocking of the locking mechanism can be made possible by means of the drive unit.
Claims
1. An electrically actuatable motor vehicle lock, comprising: a locking mechanism having a rotary latch and at least one pawl, a release lever, wherein the release lever interacts with the locking mechanism in such a way that a blocked locking mechanism can be unblocked, an electric drive unit and a manually actuatable actuating lever, wherein the release lever is actuatable by either one of the electric drive unit and the manually actuatable actuating lever, and a locking unit, wherein manual unblocking of the locking mechanism is prevented by the locking unit, and wherein the drive unit is configured to permit simultaneous locking of the manual actuatable actuating lever and unblocking of the locking mechanism.
2. The motor vehicle lock according to claim 1, wherein the drive unit has an electric drive, a drive gear, a drive pulley, and a control member.
3. The motor vehicle lock according to claim 2, further comprising a control lever, wherein the actuating lever engages with the release lever via the control lever.
4. The motor vehicle lock according to claim 3, wherein the control lever is blocked and released by the control member.
5. The motor vehicle lock according to claim 2, wherein the release lever is actuated by the control member.
6. The motor vehicle lock according to claim 2, wherein the control member engages with the release lever in such a way that the control member blocks a movement of the control lever during actuation of the release lever.
7. The motor vehicle lock according to claim 2, wherein the control member engages with a control contour of the control lever during actuation of the release lever.
8. The motor vehicle lock according to claim 2, wherein the control member is transferred by the drive unit into a release position in which the control lever is released and into a blocking position in which the control lever is blocked.
9. The motor vehicle lock according to claim 2, wherein the control lever interacts with a mass inertia-based securing system.
10. The motor vehicle lock according to claim 1, further comprising a coupling lever that is arranged between the actuating lever and the release lever.
11. The motor vehicle lock according to claim 10, wherein the coupling lever is configured such that when the actuating lever is actuated with a conventional actuation speed the coupling lever engages with the release lever and unblocks the locking mechanism, and when the control lever is blocked by the control member, then, when the actuating lever is moved, the coupling lever is deflected and the release lever is not actuated.
12. The motor vehicle lock according to claim 2, wherein the control member is pivotable and the release lever has an extension that extends into a pivoting range of the control member.
13. The motor vehicle lock according to claim 7, wherein the control member includes a control cam that engages with the control contour of the control lever.
14. The motor vehicle lock according to claim 3, wherein the release lever is mounted on a common axis with the control lever and the actuating lever.
Description
[0032] FIG. 1 is a three-dimensional representation of a motor vehicle lock constructed according to the invention, with only the components of the motor vehicle necessary for explaining the invention being reproduced in one embodiment,
[0033] FIG. 2 is a top view of the drive unit according to FIG. 1 in a locked position of the motor vehicle lock with a deflected, i.e. actuated, actuating lever,
[0034] FIG. 3 shows the motor vehicle lock in an unlocked position and an unactuated actuating lever,
[0035] FIG. 4 shows the motor vehicle lock according to the invention in an unlocked position and with a pivoted actuating lever,
[0036] FIG. 5 shows the motor vehicle lock according to the invention in the locked position with a partially actuated release lever; and
[0037] FIG. 6 shows the motor vehicle lock according to the invention in the locked position with a fully actuated release lever.
[0038] FIG. 1 shows a three-dimensional view of a motor vehicle lock 1 with the components that are substantial to the invention. A locking mechanism 2 consisting of a rotary latch 3 and a pawl 4 can be unblocked by means of a release lever 5, wherein the locking mechanism 2 is in a main ratchet position. The release lever 5 is mounted in the motor vehicle lock 1 about a common axis 6 with the control lever 7 and an actuating lever 8. A coupling lever 9 is accommodated in the actuating lever 8 so as to be pivotable about an axis 10. In this exemplary embodiment, the drive unit 11 has an electric motor 12, on the output shaft of which a worm gear 13 is arranged, wherein the worm gear 13 forms a first transmission stage 15 with an output gear 14. By means of a further transmission stage 16, the output gear 14 interacts with a control member 17. The control member 17 in turn is accommodated in the motor vehicle lock 1 so as to be pivoted about the axis 18, wherein the control member 17 interacts with the control lever 7.
[0039] FIG. 1 shows the locking mechanism 2 in a main ratchet position, wherein the rotary latch 3 is shown by means of the pawl 4 in the main ratchet position and thus, for example, a closed door. The actuating lever 8 is in an unactuated starting position A. FIG. 1 thus shows the unactuated motor vehicle lock 1 in a locked position.
[0040] Starting from the unactuated position of the actuation lever 8 shown in FIG. 1, FIG. 2 shows the position of the actuation lever 8 in which the actuating lever 8 is pivoted into the actuation position B thereof. This can be done, for example, by actuating the outside door handle, wherein an outside door handle is actuated, for example, by means of a Bowden cable with the actuating lever and/or an outside actuating lever in the motor vehicle lock. The motor vehicle lock 1 is in the locked state, wherein the control member 17 fixes the control lever 9 in the unactuated position thereof. For this purpose, the control member 17 has a control cam 19 which interacts with a control contour 20 on the control lever 9. The control cam 19 fixes the control lever 9 in the starting position A thereof, so that the coupling lever 9 pivotably mounted in the actuating lever 8 is deflected. The coupling lever 9 is thereby deflected by a control curve 21 so that the coupling lever 9 does not engage with the release lever 5. This case can occur, for example, when a user pulls on the outside door handle or inside door handle, as a result of which the actuating lever 8 is pivoted. The actuation of the inside door handle or outside door handle runs therefore idle.
[0041] FIG. 3 shows the motor vehicle lock 1 in an unlocked position, so that a manual unblocking of the locking mechanism 2 can be made possible. In order to transfer the motor vehicle lock 1 into an unlocked state, the control member 17 was pivoted in the direction of the arrow P1 by means of the drive unit 11. By pivoting the control member 17, the control cam 19 moves out of engagement with the control contour 20. The actuating lever 8 is in the starting position A thereof and the coupling lever 9 is engaged with the release lever 5. The motor vehicle lock 1 can thus be unblocked manually via the actuating lever 8, for example by means of an inside door handle or an outside door handle.
[0042] FIG. 4 shows the manual unblocking of the locking mechanism, wherein the actuating lever 8 has pivoted the release lever 5 by means of the coupling lever 9. The actuating lever 8 was pivoted from the starting position 8 thereof in the direction of the arrow P1 by the angle α. The angle αcan be, for example, a pivot angle of 20 to 50 degrees and preferably a pivot angle of 25 to 40 degrees, and even more preferably a pivot angle of about 30 degrees. By manually moving the actuating lever 8, the release lever 5 was pivoted in such a way that the pawl 4 was pivoted in the direction of the arrow P2, as can be seen in FIG. 1, so that the pawl 4 is disengaged from the rotary latch 3.
[0043] FIG. 5 now shows the electrical unblocking of the locking mechanism by means of the drive unit 11. The lock 1 is in a locked position since the control cam 19 is engaged with the control contour 20. FIG. 5 shows the state in which the control member 17 has already been pivoted by means of the electric motor 12, specifically in the direction of the arrow P3. When the control member 17 is pivoted, the control member 17 engages with the release lever 5 or maintains engagement with the release lever 5 and moves the release lever 5 in a clockwise direction. Due to the continuous engagement of the control cam in the control contour 20, the control lever 7 is held in the starting position thereof, so that a manual opening of the motor vehicle lock 1 can be prevented. During the entire movement of the control member, the control cam 19 remains in contact with the control contour 20 or prevents the control lever 7 from moving, so that there is a continuously locked state during the releasing of the locking mechanism 2.
[0044] FIG. 6 shows the unblocking of the locking mechanism by means of the drive unit 11, wherein the release lever 5 was pivoted by means of the control member 17 so far that the pawl 4 was moved out of engagement with the rotary latch 3. The locking mechanism is unblocked and a lock holder can be released from rotary latch 3. As can be seen from FIG. 6, the control member 17 is also engaged with the control lever 7 in the open position of the locking mechanism, so that a locked state is obtained. The motor vehicle lock 1 can thus be opened manually either by means of the inside actuating lever or by means of the outside door handle. Opening by means of an inside door handle would only be possible if there was an independent actuating lever chain from the inside door handle to the release lever. The control member 17 consequently causes an unblocking of the locking mechanism in an actuating direction, in the direction of the arrow P3, whereas actuating the control member in the direction of the arrow P results in the unlocking of the motor vehicle lock 1. According to the invention, locking and unblocking of the locking mechanism can thus be realized by means of a drive unit 11 and two directions of actuation of the control member 17.
[0045] As an additional securing member, it is conceivable that the control lever 7 interacts with a mass inertia member (not shown), so that even when the motor vehicle lock is in an unlocked state and the actuating lever 8 is accelerated excessively, unblocking of the locking mechanism can be prevented by holding the control lever 7 in the starting position thereof. The mass inertia member counteracts an external impulse and keeps the control lever 7 in the starting position thereof, which in turn causes the coupling lever 9 to be disengaged from the release lever 5 by means of the control curve 21.
LIST OF REFERENCE SIGNS
[0046] 1 Motor vehicle lock [0047] 2 Locking mechanism [0048] 3 Rotary latch [0049] 4 Pawl [0050] 5 Release lever [0051] 6, 10, 18 Axis [0052] 7 Control lever [0053] 8 Actuating lever [0054] 9 Coupling lever [0055] 11 Drive unit [0056] 12 Electric motor [0057] 13 Worm gear [0058] 14 Output gear [0059] 15 First transmission stage [0060] 16 Second transmission stage [0061] 17 Control member [0062] 19 Control cam [0063] 20 Control contour [0064] 21 Control curve [0065] A Starting position [0066] B Actuation position [0067] P, P1, P2, P3 Arrow
