摘要 |
A shock absorber includes: a main piston which is mounted on a piston rod reciprocating within a cylinder, slidingly reciprocates within the cylinder while contacting an inner periphery of the cylinder, and partitions the cylinder into upper and lower chambers; a communication passage which is formed in the piston rod to communicate the upper chamber with the lower chamber, and penetrates from an upper side of the main piston to a lower side of the piston rod; a housing which is mounted on a lower end of the piston rod to form an internal space, a communication hole connected to the lower chamber being formed in a bottom surface of the housing. |