| CPC B62K 25/08 (2013.01) [F16F 9/3242 (2013.01); F16F 9/325 (2013.01); F16F 9/364 (2013.01); F16F 9/3257 (2013.01)] | 20 Claims |
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1. A shock absorber comprising:
a tubular outer tube that is connectable to either a vehicle wheel or a vehicle body;
a tubular inner tube that includes a distal end provided inside the outer tube and a terminal end being connectable to either the vehicle wheel or the vehicle body to which the outer tube is not connected, is provided so as to be movable relative to the outer tube, and is filled with oil therein;
a rod that is provided inside the inner tube and is supported by the outer tube or the inner tube;
a piston that is fixed to the rod and is configured to generate a damping force when the inner tube moves relative to the outer tube;
an urging member that is configured to urge the outer tube and the inner tube in a direction in which the outer tube and the inner tube are separated from each other; and
a guide bush that is a ring-shaped member arranged along an inner peripheral surface of the outer tube, abuts against a front surface and a rear surface of the inner tube to movably hold the inner tube, and is separated from left and right side surfaces of the inner tube,
wherein an inner peripheral surface of the guide bush has a cross-sectional shape with an axis of the inner tube as the normal direction, said cross-sectional shape being longer in a left-right direction than in a front-rear direction.
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