Pneumatic working member movable to and fro for central-locking systems of vehicles

摘要

The invention relates to a pneumatic working member movable to and fro for central-locking systems of vehicles, having an electrical switch integrated in the housing and co-moved by the piston. In order, despite a pressure occurring in the working space of the working member, to make it possible to actuate the electrical switch from the output of the pneumatic working member, between the piston rod and the connecting linkage of the output is provided an overrideable catch connection which acts on the actuating lever of the electrical switch. The latter is prestressed on one side in the direction of the corresponding bearing surface by a spring, the force of which is greater than the actuating force of the switch. The overriding force for the catch connection is greater than the working resistance which has to be applied by the pneumatic working member.