DAMPER

摘要

The number of parts in a damper of a through-rod type is reduced to simplify a constitution thereof and to make the damper compact. The damper (1) includes: a cylinder tube (10) having one end (16) connected to one part (3a) of a member (3) as an object of damping, a fixing rod guide (14) for closing the other end (11) of the cylinder tube (10) ; a movable rod guide (18) fitted on the one end (16) of the cylinder tube (10); a main piston rod (21) extending on the piston (20) side, the piston (20) fitted in the cylinder tube (10) and passing through the fixing rod guide (14); a sub-piston rod (22) extending on the piston (20) side and passing through the movable rod guide (18); and a spring (24) normally biasing the movable rod guide (18) toward the piston (20). A damping force generation oil passage is provided for connecting first and second oil chambers (42, 43) in a cylinder tube (10) defined by the piston (20).