Locking device for double-acting fluid cylinders, in particular hydraulic cylinders

摘要

In a locking device for double-acting fluid cylinders, in particular hydraulic cylinders, to temporarily fix the position of a working piston, adjustable as desired between two end positions, in a cylinder, a clamping piston with a clamping spring for opening out an expanding ring which can bear against the cylinder barrel is arranged in the working piston. The clamped coupling is released by means of the pressure medium serving to shift the working piston.