| 摘要 |
A shock absorbing seat support post for a bicycle or the like consists of a tubular member and an elongated tubular stem partially within and in sliding engagement with said tubular member; shock absorbing means within and towards bottom end of the tubular member; means of maintaining a predetermined resting force between the stem and the shock absorbing means. Metal to metal contact between tubular member and tubular stem is prevented by middle and bottom sliders made of delrin. In a preferred embodiment of the invention, the range of sliding movement is limited by two keways and horizontal key pin extending through: top cap; outer tube; piston and top slider. The key limits the rotation of the tubular stem while permitting reciprocating movement of the tubular stem relative to the tubular member.
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