Patent ID: 8353553

Claim:
A drive for actuating a flap pivotably supported in or on an automobile, comprising a push-push kinematics cooperating with one side of the flap, said push-push kinematics comprising: a housing suitable for integration into an automobile, a pushbar Which is supported in axially displaceable manner in the housing and which in all its axial positions partly projects through a housing aperture out of the housing and comprises an external actuation end cooperating with the flap, a spring in the housing prestressing the pushbar to project from the housing, a rotatable ring which encloses the pushbar and which is supported in the housing in an axially fixed manner, at the outside of the pushbar, at least one groove running parallel to its axis and at least one protrusion at the inner circumference of said ring to engage said groove over a wide adjustment range of the pushbar, as a result of which the ring retains its rotational position in said range of the groove when the pushbar is displaced axially, a first deflection face which runs obliquely to the axis of the pushbar and is configured between the groove and the actuation end and which cooperates with the protrusion of the ring and rotates this ring through a predetermined angle when the pushbar is displaced by a predetermined first excursion into the housing, a locking recess pointing toward the actuation end and situated at the pushbar at a circumferential spacing from the first deflection face and receiving the protrusion when the pushbar is released following the first excursion, as a result of which the pushbar following a return excursion is locked in a locked position in the housing, and a second deflection face running obliquely to the pushbar axis between the locking recess and the actuation end, cooperating with the protrusion when the pushbar is moved out of the locked position by means of a second excursion farther into the housing, whereby the ring is rotated by a predetermined second angle and the protrusion is aligned with the groove and the pushbar is displaceable into its maximally extended position.