| 摘要 |
A hydraulic damper includes a cylinder, a piston slidably disposed in the cylinder and partitioning the interior of the cylinder into first and second oil chambers, a rod secured to the piston and extending through the first chamber to the outside, and a damping force generating valve mechanism provided in the cylinder and at one end of the second oil chamber. The valve mechanism comprises a bottom member defining an annular valve seat thereon, a flexible valve disc cooperating with the valve seat, and a novel generally tubular valve guide. The valve guide has a plurality of large and small diameter portions formed integrally and alternately along the circumference thereof, the inner circumference of the small diameter portions defining guide surfaces for guiding the outer circumference of the valve disc and axial passages along the outer circumference thereof, and the large diameter portions defining axial passages along the inner circumference thereof and which passages communicate with the first mentioned axial passages through cut-outs formed between the large and small diameter portions.
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