| 摘要 |
PROBLEM TO BE SOLVED: To exert high attenuation performance when a small load is input, and to suppress sudden rise of a dynamic spring constant of a stopper when a large load is input.SOLUTION: A first mounting member 11 is disposed in a state of holding a second mounting member 12 at least in one direction D, an elastic body 13 connects both mounting members 11, 12 in a state of forming a clearance gap 14 in one direction D between both mounting members 11, 12, and a stopper 22 disposed in the clearance gap 14 is constituted by holding a first elastic portion 23 and a second elastic portion 24 disposed in one direction D in series, between both mounting members 11, 12. The first elastic portion 23 has higher tanδand lower dynamic spring constant in comparison with those of the second elastic portion 24. A spatial portion 23c formed on the first elastic portion 23 is pressed in one direction D to compress the first elastic portion 23 in one direction D while relatively moving both mounting members 11, 12 in one direction D to be closest to each other, thus the dynamic spring constant of the second elastic portion 24 becomes lower than the dynamic spring constant of the first elastic portion 23. |
