| 摘要 |
PURPOSE:To suppress a deterioration of an elastic body owing to the contact of the elastic body and a partition plate, and to suppress a deterioration of the vibration-proof function, in a liquid sealing type vibration isolation device. CONSTITUTION:Near the center of a recess 12 formed to an elastic body 4, two thick wall parts 20a and 20b making almost symmetric laterially, making the longitudinal line of an inner tube 1 as the center line, are formed, and a valley 19 extending in the longitudinal direction of the inner tube 1, positioning between the two thick wall parts 20a and 20b, have been formed. As a result, when a vibration of the inner tube 1 is increased, and the elastic body 4 is contacted to the partition plate 22, both two thick wall parts 20a and 20b formed near the center of the recess 12 of the elastic body 4 are contacted to the partition plate 20. As a result, a stress from the inner tube 1 is dispersed to the thick wall parts 20a and 20b, but not concentrated at one part, and the deterioration of the elastic body 4 can be suppressed. |
