A damping device for damping movement of doors

摘要

A damping device comprises a cylinder 11 in which a piston 10 is housed for reciprocating movement. The piston has a skirt 12 which expands resiliently outwardly when the piston is moved in the direction of arrow A to provide a frictional damping force. The interior of the cylinder 11 is undercut at its distal end 13a to allow the skirt 12 to relax.