Actuating drive for centrally controlled locking systems in motor vehicles, has a casing, an electric motor, a con-rod sliding lengthwise and gearing between the electric motor and the con-rod

摘要

A con-rod (3) has push/thrust elements in sections. A gearing mechanism has a slide device with two gearing elements (6,7) and devices for generating lifting motion in the gearing elements, one of which catches on the push/thrust elements in an extended direction and the other in an opposite direction. Each gearing element has a no-load limiting point on the con-rod.