| 摘要 |
<p>PURPOSE:To prevent an elastic body of a charging ring from peeling off from a support by restricting an adhesion territory of the elastic body against a collar part on the extreme outside of the support included the filling ring within the inside edge surface. CONSTITUTION:When liquid pressure of a liquid source further decreases, a bladder 12 and a poppet 22 are further moved in the arrow X2 direction while resisting against a spring force of a spring 23 by gas pressure of a gas chamber 11A and liquid stored in a liquid chamber 11B is all discharged toward an outside liquid source through a liquid guide hole 21A of an oil port main body 21. When the bladder 12 makes contact with an elastic body 32 of a charging ring 30, a pressure force is given against the elastic body 32 by gas pressure of the gas chamber 11A, but as the adhesion territory of the elastic body 32 is restricted within the inside edge surface of a collar part 31b1, even if stress is concentrated on the adhesion part of the elastic body 32, it is possible to avoid peeling at the adhesion part of the elastic body 32.</p> |
