Motor vehicle lock, in particular motor vehicle door lock
A motor vehicle lock, in particular a motor vehicle door lock, which is equipped with a locking mechanism made substantially of a rotary latch and a pawl. Furthermore, an electromotive drive and an actuating lever mechanism with at least one release lever and a control lever are implemented. The drive can operate both on the release lever for opening the locking mechanism and the control lever. According to the invention, a force transmission element that cooperates with the release lever is provided for emergency opening of the locking mechanism.
1 . A motor vehicle lock comprising:
a locking mechanism including a rotary latch and a pawl,
an electromotive drive including a control element, and
an actuating lever mechanism with at least a release lever and a control lever, wherein the control element directly operates on the release lever for opening the locking mechanism and on the control lever,
wherein the locking mechanism is opened during a normal powered operation by operation of the electromotive drive causing the control element to operate directly on the release lever, and the control lever assumes a locked position during the normal operation,
a manually actuatable operating lever, wherein the locking mechanism cannot be opened with the aid of the manually actuatable operating lever during the normal powered operation,
a clutch lever, wherein with the aid of the control lever, the clutch lever is transferred into an engaged position corresponding to an unlocked state of the control lever in which a position of the release lever is manually biased and the locking mechanism is opened via the manually actuatable operating lever by movement as an alternative to the electromotive drive, and
a force transmission element, wherein the locking mechanism is opened during an emergency powered opening by operation of the electromotive drive causing the control element to move the control lever to an emergency opening position such that the force transmission element is directly engageable by the control element,
wherein the force transmission element cooperating with the release lever provides for the emergency powered opening of the locking mechanism, with the aid of which a rotary movement exerted by the electromotive drive on the locking mechanism is translated or reduced,
wherein during normal powered operation, the control element is spaced from the force transmission element,
wherein the force transmission element is a lever or a lever arm which is connected to the release lever, and
wherein the force transmission element dips into a control contour of the control lever.
2 . The motor vehicle lock according to claim 1 , wherein the force transmission element is equipped with a spring.
3 . The motor vehicle lock according to claim 2 , wherein the spring holds the force transmission element in a spread-out state relative to a stop edge of the control contour.
4 . The motor vehicle lock according to claim 3 , wherein the spring is a spiral spring with a leg resting against the stop edge and against the force transmission element.
5 . The motor vehicle lock according to claim 1 , wherein the manually actuatable operating lever is provided as a component of the actuating lever mechanism.
6 . The motor vehicle lock according to claim 5 , wherein the manually actuatable operating lever is equipped with the clutch lever mounted thereon, which is biased by the control lever.
7 . The motor vehicle lock according to claim 1 , wherein the electromotive drive has an output disk that acts on the control element that operates the release lever.
8 . The motor vehicle lock according to claim 1 , wherein the emergency powered opening occurs when an on-board power supply voltage is below a threshold amount.
9 . The motor vehicle lock according to claim 1 , wherein the control lever is movable between the locked position, the emergency opening position, and an unlocked position.
10 . A motor vehicle lock comprising:
a locking mechanism including a rotary latch and a pawl,
an electromotive drive, and
an actuating lever mechanism with at least a release lever and a control lever, wherein the electromotive drive operates on the release lever for opening the locking mechanism and on the control lever,
wherein the locking mechanism is opened during a normal operation by operation of the electromotive drive, and the control lever continuously assumes a locked position during the normal operation,
a manually actuatable operating lever, wherein the locking mechanism cannot be opened with the aid of the manually actuatable operating lever during the normal operation,
a clutch lever, wherein with the aid of the control lever, the clutch lever is transferred into an engaged position corresponding to an unlocked state of the control lever in which a position of the release lever is manually biased and the locking mechanism is opened via the manually actuatable operating lever by movement as an alternative to the electromotive drive, and
a force transmission element, wherein the force transmission element cooperating with the release lever provides for an emergency opening of the locking mechanism, with the aid of which a rotary movement exerted by the electromotive drive on the locking mechanism is translated or reduced,
wherein the force transmission element is a lever or a lever arm which is connected to the release lever,
wherein the force transmission element dips into a control contour of the control lever,
wherein the force transmission element is equipped with a spring,
wherein the spring holds the force transmission element in a spread-out state relative to a stop edge of the control contour, and
wherein the spring is a spiral spring with a leg resting against the stop edge and against the force transmission element.
11 . A motor vehicle lock comprising:
a locking mechanism including a rotary latch and a pawl,
an electromotive drive, and
an actuating lever mechanism with at least a release lever and a control lever, wherein the electromotive drive operates on the release lever for opening the locking mechanism and on the control lever,
wherein the locking mechanism is opened during a normal operation by operation of the electromotive drive, and the control lever continuously assumes a locked position during the normal operation,
a manually actuatable operating lever, wherein the locking mechanism cannot be opened with the aid of the manually actuatable operating lever during the normal operation,
a clutch lever, wherein with the aid of the control lever, the clutch lever is transferred into an engaged position corresponding to an unlocked state of the control lever in which a position of the release lever is manually biased and the locking mechanism is opened via the manually actuatable operating lever by movement as an alternative to the electromotive drive, and
a force transmission element, wherein the force transmission element cooperating with the release lever provides for an emergency opening of the locking mechanism, with the aid of which a rotary movement exerted by the electromotive drive on the locking mechanism is translated or reduced,
wherein the force transmission element is a lever or a lever arm which is connected to the release lever,
wherein the manually actuatable operating lever is provided as a component of the actuating lever mechanism, and
wherein the manually actuatable operating lever is equipped with the clutch lever mounted thereon, which is biased by the control lever.