Hydraulic cylinder has locking device brining into engagement with piston and/or piston rod on one side, cover block and/or sleeve block on other side in locking position; control is exerted by hydraulic pressure unit and/or spring force

摘要

The hydraulic cylinder has a locking unit in the form of a locking device (18,14,15) arranged inside the hydraulic cylinder (1) that can be brought into engagement with the piston (4) and/or piston rod (5) on one side and a cover block (2) and/or sleeve block (3) on the other in a locking position, whereby control is exerted by a hydraulic pressure unit and/or through spring force.