Piston-cylinder unit, especially vibration damper, has protective tube with shape-locking profile that engages counter profile oriented with respect to piston rod connecting element in defined installation position of tube

摘要

The unit (1) has a piston with a first connecting element (9) and a cylinder (3) with a second connecting element (11) and peripherally aligned with respect to each other by the connecting elements. It has a protective tube (25) attached to the piston that covers the cylinder depending on the piston stroke and whose non-circular cross-section matches that f the cylinder. The protective tube has a shape-locking profile that engages a counter profile oriented with respect to the piston rod connecting element in the defined installation position of the tube.