Piston cylinder unit, esp. pneumatic spring, inside vertical pipe

摘要

The piston cylinder unit (1) is radially positioned inside the vertical pipe (3) by a guide (21). The cylinder (5) represents a counter-guide closed at the end by a piston rod (9) guide (13). The outer end of an axially movable piston rod is fixed to the vertical pipe.The piston cylinder unit has a counter-guide extension (23) formed by the cylinder and extending from the top of the piston rod guide towards the piston rod fixture. The piston rod guide is axially fixed by a peripheral ridge (27) moulded near the counter stay extension.