| 摘要 |
A shock absorber is provided to improve the stability of controlling a vehicle by controlling oil flow using a tube coupled to a piston rod in a cornering. A shock absorber comprises a cylinder(110) of containing oil, a piston rod(120) coupled to the cylinder, a tube(130) installed between the piston rod and the cylinder, a main valve(140) coupled to a lower end of the tube, a fixed housing(150) installed at a lower end of the main valve and a subsidiary valve(160). The tube is installed, so that the tube moves corresponding to a movement direction of the piston rod. The main valve is adhered closely to an outer circumference of the piston rod and an inner circumference of the cylinder, and includes a first oil passage hole(141) and a second oil passage hole(142). The subsidiary valve has a coupling projection(163) coupled to a recess(151) of the fixed housing, and includes a third passage hole(161) and a fourth passage hole(162).
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