| 摘要 |
<p>PROBLEM TO BE SOLVED: To secure waterproof and dustproof propeties of a cylinder chamber and slidability of a ring piston for a hydraulic clutch release, while maintaining the tentatively assembled simple structure of the clutch release device until the clutch release is put together with a vehicle body. SOLUTION: A bellows-like rubber boot 20 projected over a return spring 10 is placed between a large diameter part 4a of a cylinder housing 4 and a flat part 8b of a bearing support member 8. Peritonea 20d adjacent to the bellows-like part 20c are coupled together via a thin film 20e. In setting, the return spring 10 is allowed to expand by tearing off the thin film 20e with pulling force of a ring piston 6.</p> |
