Patent ID: 6278252
Filing Date: 2001-08-21
Classification: E05B,Y10S

Abstract:
Electric motor-driven servo-drive for a motor vehicle lock, comprising:an electric drive motor;a servo-drive element which is driven by the electric drive motor;a mechanical operating element mounted to be moved back and forth by the servo-drive element between at least two operating positions; andan electric motor control means for turning on the electric drive motor and for turning the electric drive motor off in a predetermined free position of the servo-drive element when one of the operating positions of the mechanical operating element occurs simultaneously with the servo-drive element being in said predetermined free position; wherein only one electrical or electronic switch is provided, which is connected to the electric motor control means and mechanically arranged to be acted upon by both the servo-drive element and the mechanical operating element; and wherein a mechanical actuating element is positioned between the electric or electronic switch and the servo-drive element and between the electric or electronic switch and the mechanical operating element, the servo-drive element and the mechanical operating element acting on the mechanical actuating element and the mechanical actuating element actuating the electric or electronic switch only when the mechanical actuating element is acted upon by both the servo-drive element and the mechanical operating element.