| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to reduce the rigidity of an elastic wall in a direction orthogonal to the axis and to effectively reduce the vibration in a low frequency range in an axial direction and the vibration in a high frequency range in a direction orthogonal to the axis. SOLUTION: A partition member 15 which divides a liquid chamber 14 into two chambers is composed of an orifice constituting body 17 and an elastic wall 18. The orifice constituting body 17 is fixed to an inner cylinder 11. The elastic wall 18 is cylindrically formed so as to be along the axial direction of the inner and outer cylinders 11 and 12. At one end of the elastic wall 18 is provided an annular seal 19 which makes a sliding and close contact with the inner circumferential surface of the outer cylinder 12. A metallic ring 20 is embedded into the annular seal 19. When the vibration in low frequency range in the axial direction is inputted, the elastic wall 18 is deformed in a compression and tension direction to reduce the amount of deformation, and when the vibration in high frequency range in a direction orthogonal to the axial direction is inputted, the elastic wall 18 is deformed in a shear direction so that it is possible to obtain a low rigidity. |
