| 摘要 |
PURPOSE:To enhance durability and reduce weight by providing a first elastic body between an inner cylinder and an outer cylinder, arranging a second inner cylinder inside the inner cylinder via a second elastic body, making rigidity in the axial orthogonal direction of the first elastic body smaller than the second elastic body, and making rigidity in the axial and torsional direction of the first elastic body larger than the second elastic body. CONSTITUTION:A first elastic body 3 is provided between an outer cylinder 2 and a first inner cylinder 1, liquid chambers 4 are provided outside the first elastic body 3, and the respective liquid chambers 4 are communicated with each other by communication passages 5. A second inner cylinder 6 is provided inside the first inner cylinder 1 via a second elastic body 7. In this constitution, rigidity in the axial orthogonal direction of the first elastic body 3 is made smaller than the second elastic body 7, while rigidity in the axial and torsional direction of the first elastic body 3 larger than the second elastic body 7. Accordingly, durability is enhanced, cost is reduced, and weight is decreased. |
