Motor vehicle lock
AssigneeKiekert AG
InventorsHolger Schiffer, Michael Scholz, Cyrille Roussel
Life of this patent
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Abstract
A motor vehicle lock, in particular for a vehicle rear door, having a lock cover and a locking mechanism consisting essentially of a rotary latch and at least one pawl, also comprising at least one coupling element, and at least one electric drive, wherein the coupling element can assume different positions, and the coupling element interacts with a drive element of the drive and a central locking mechanism, wherein the coupling element is connected to the drive element in order to take up its positions.
Claims16
A motor vehicle latch for a vehicle rear door, the motor vehicle latch comprising:
- a latch cover;
- a locking mechanism having a catch and at least one pawl;
- at least one coupling element;
- at least one electric drive having a drive element, wherein the at least one coupling element is configured to assume different positions and the at least one coupling element is configured to interact with the drive element and a central locking mechanism, the at least one coupling element being connected to the drive element to assume the different positions, wherein the drive element and/or the latch cover includes a ratchet contour having at least two positioning notches, wherein each positioning notch is U-shaped with two straight abutment surfaces;
- and
- a spring mechanism, wherein a turn portion of the spring mechanism is configured to act on at least one of the two positioning notches of the ratchet contour by means of a spring force whereby the at least one coupling element is positioned in the different positions and the drive element is held in the different positions by the spring force of the spring mechanism, and wherein the turn portion comprises two points of contact that engage the abutment surfaces when the turn portion acts on at least one of the two positioning notches.
A method for operating a child lock in a motor vehicle latch that comprises a latch cover, a locking mechanism having a catch and at least one pawl, at least one coupling element, and at least one electric drive having a drive element, the method comprising:
- moving the at least one coupling element to assume different positions, wherein the at least one coupling element interacts with the drive element and a central locking mechanism;
- connecting the at least one coupling element to the drive element to assume the different positions, wherein the drive element and/or the latch cover comprises a ratchet contour having at least two positioning notches, wherein each positioning notch is U-shaped with two straight abutment surfaces;
- engaging a turn portion of a spring mechanism with the at least two positioning notches of the ratchet contour by means of a spring force of the spring mechanism whereby the at least one coupling element is positioned in the different positions and the child lock is engaged, disengaged and/or released and the drive element is held in the different positions by the spring force of the spring mechanism, wherein the turn portion comprises two points of contact that engage the abutment surfaces when the turn portion engages with at least one of the at least two positioning notches.
Dependencies are inferred from the claim text.