| 主权项 |
1. A shock absorber comprising:
a cylinder sealingly containing hydraulic fluid; a piston slidably inserted in the cylinder; a piston rod coupled with the piston and extending out of the cylinder; a disk valve configured to, with respect to a flow of the hydraulic fluid that is caused by a sliding displacement of the piston, generate a damping force by being separated from or seated onto a valve seat to control the flow; a bottomed cylindrical pilot body opened toward the disk valve; and an annular elastic seal member fixedly attached to an outer circumferential portion of one surface side of the disk valve and slidably and liquid-tightly fitted to an inner circumferential portion of the pilot body, the elastic seal member forming a pilot chamber configured to apply an inner pressure therein to the disk valve in a valve-closing direction, wherein the elastic seal member includes an annular proximal portion fixedly attached to the disk valve, an annular lip portion extending from the proximal portion toward a bottom portion of the pilot body, having a radially thinner thickness than the proximal portion, and forming a stepped portion on an inner circumferential side between the proximal portion and the lip portion, and an annular seal portion protruding an outer circumferential portion of the lip portion and slidably contacting the inner circumferential portion of the pilot body. |
