| 摘要 |
PURPOSE:To enable artificial adjustment of parts characteristics in an air-spring- equipped suspension device by constituting the system in such a manner that a buffer, an air spring, a bush are variable in their characteristics and moreover each of them contains their own valve body that can be driven at one's will. CONSTITUTION:When pressure fluid is supplied to hoses 109, 126, and 137, based on either driver's operation or sensor information, the fluid presses down each valve body 102, 110, and 130. As a result, an oil passage (not illustrated herein) of a control rod part 46 of No. 2 valve body 110 is disconnected. In addition, a valve part 123 of No. 2 valve body 110 is brought in close contact with a valve seat 116, thereby disconnecting a main air-chamber 74 from an auxiliary air-chamber 76. Similarly, the head part 133 of No. 3 value body 130 closes a hole 84 of a valve base, thereby disconnecting a fluid chamber 90 from a fluid chamber 92. Accordingly, damping force of a buffer 12, a spring constant of an air spring 14, and a spring constant of a bush 12 become greater. When the fluid is extracted, the characteristic value becomes smaller. With this contrivance, each characteristic can be artificially adjusted at one's will. |
