| 摘要 |
<p>A hydraulic shock-absorbing device has a small diameter cylinder body (21) and a large diameter cylinder body (22) that have a first oil chamber (44) and a second oil chamber (45) that are communicated with oil chambers of hydraulic shock absorbers attached as a pair to a vehicle body. A free piston (23) is inserted in both cylinder bodies so that variations of volumes of the first oil chamber (44) and the second oil chamber (45) always have a constant ratio. The first oil chamber (44) and the second oil chamber (45) are communicated through a third restriction (56). An opening/closing valve (30) opened and closed by a solenoid (32), and in addition, a first and a second restriction (29, 31) are arranged in series in a bypass path (52) connecting both oil chambers. The small diameter cylinder (21) is formed by casting using a metal mold that is split in the radial direction. An installation section (24) for a solenoid, hydraulic pipe installation sections (13, 15), and installation bosses (25, 26) are arranged on a split surface of the metal mold.</p> |
