Patent ID: 8632106
Filing Date: 2014-01-21
Classification: E05B,Y10T

Abstract:
1. A drive unit for a central locking system that locks and unlocks a catch in a lock of a vehicle so that the catch cannot and can be moved from a closed position to an open position, comprising a housing, an electric drive motor mounted to the housing for moving a functional element between a stop position for preventing opening movement of the catch and a release position for enabling opening movement of the catch, and at least one frictional element cooperating with the functional element to provide frictional resistance to movement of the functional element, wherein the frictional element is disposed in the housing along a motion pathway of the functional element before the functional element reaches the stop position, and wherein the friction coefficient between the frictional element and the functional element is such that the frictional force between the functional element and the frictional element cannot be overcome by forces that normally act on the functional element when the drive motor is turned off when the functional element is in the stop position.