Pneumatic linear drive with locking for ends of travel.

摘要

Linear drive (1) having a piston rod (13) linked to a double piston (20) by a flexible connection. A permanent connection is provided between the pressure chamber (32) and the piston/cylinder unit (3). A throttle check valve (36) is provided positioned in the region of the position rod between the double piston and the locking guide groove (12). A cylindrical hollow chamber (26) with a central opening (27) forms part of the interior of the hollow piston and contains two axially displaceable, sequentially arranged bushes (28, 29).