| 摘要 |
PROBLEM TO BE SOLVED: To provide endurance strength even under high temperature, and to provide prescribed dynamic spring characteristics. SOLUTION: A rubber vibration isolator 1, to which vibration from a vibrating body is inputted, and liquid-filled main- and sub chambers 3, 6 located in series with the isolator 1 are provided between an upper connecting member 9 connected to the vibrating body, and a lower connecting member 99 connected to a car side member. Orifices 4 connecting the main chambers 3 to the sub chambers 6 are provided. A rubber film-like elastic member 2 connected to the upper connecting member 9 and cylindrical metal fittings 22 connected to the lower connecting member 99 are provided so that they wrap the isolator 1. Spaces formed by these members are filled with liquid to provide liquid chambers, and the liquid chambers serve as the sub-chambers 6 or independent chambers. Thus, the isolator 1 can be formed of a natural rubber-based rubber material having the low dynamic spring characteristics. |
