| 主权项 |
1. A shock absorber comprising:
a cylinder in which working fluid is sealed; a piston that is slidably fitted into the cylinder; a piston rod that is coupled to the piston and extends to an outside of the cylinder; and a damping-force generating device that controls a flow of the working fluid in a compression side stroke and an extension side stroke caused by sliding of the piston in the cylinder, thereby generating a damping force, wherein the damping-force generating device includes:
a main valve that opens and closes for controlling the flow of the working fluid caused by the sliding of the piston in the cylinder, thereby generating the damping force;a first pressure chamber and a second pressure chamber separated by the main valve;a compression-side inlet check valve and an extension-side inlet check valve that allow only inflow of the working fluid into the first pressure chamber; anda compression-side outlet check valve and an extension-side outlet check valve that allow only outflow of the working fluid from the second pressure chamber,wherein the first pressure chamber and the second pressure chamber are formed in a substantially double-ring structure. |
