| 摘要 |
In a hydraulic shock absorber ( 1 ), a piston rod ( 5 ) protrudes from a cylinder ( 3 ) filled with hydraulic fluid. A rebound cushion ( 8 ) is fitted to an outer circumferential surface of the piston rod ( 5 ) in the cylinder ( 3 ). A stopper ( 6 ) fixed to the cylinder ( 3 ) contacts the rebound cushion ( 8 ) at an protrusion limiting position of the piston rod ( 5 ) to prevent further protrusion of the piston rod ( 5 ). An oil pool ( 8 a , 9, 10, 15 ) formed in a sliding surface ( 8 a , 14 ) of the rebound cushion ( 8 ) supplies oil to the sliding surface that slides on any of the inner circumferential surface of the cylinder ( 3 ) and the outer circumferential surface of the piston rod ( 5 ) to ensure smooth relative rotation of the piston rod ( 5 ) at the protrusion limiting position and the cylinder ( 3 ).
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