| 摘要 |
PURPOSE:To make an exclusive hydraulic piping for a hydraulic passage unnecessary and achieve a suspension device superior in the layout versatility, mounting work efficiency, etc. by providing a support member locked to a piston rod and forming a hydraulic passage in the support member. CONSTITUTION:A fluid-pressure passage that connects the fluid chamber 24 of a gas spring 18 to the fluid-pressure chamber 14 of a fluid-pressure cylinder 6 is formed by a fluid-pressure passage 92 that is formed in a piston rod 8 for supply/discharge of oil fluid, and a fluid-pressure passage 96 that is formed in a support member 88 to lock and support the gas spring 18 to the piston rod 8. Thus, the mounting of new fluid-pressure piping to form a fluid-pressure passage is not necessary. As a result, the layout versatility of a suspension device is enhanced since the space for this fluid-pressure piping need not to be considered, also, the mounting work efficiency of the fluid-pressure cylinder 6 to a car body 2 is improved due to no existence of the fluid-pressure piping, and cost reduction becomes possible as the mounting manhour of the fluid- pressure piping itself is not necessary. |
