| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-sealed vibrationproofing device effective proofing vibration even relating to a vibration except in a load direction. SOLUTION: In this vibrationproofing device, an inner side metal fitting 1 mounted in one member is arranged to be received to the inside of an outer side metal fitting 2 mounted in the other member, also the inner/outer side metal fittings are connected by a rubber elastic body 3, while a pressure receiving chamber 15 constituting partly a room wall by the rubber elastic body 3 to cause an internal pressure change at vibration input time is formed in one side in a load direction of one member by interposing a partition member 5 provided in a side of the outer side metal fitting, and a balance chamber 14 constituting partly a room wall by an elastic film to permit a capacity change is formed in the other side, respectively, these pressure receiving chamber 15 and balance chamber 14 are sealed with a liquid, also a mutually communicating orifice passage 16 is provided. Here, a window 24 is formed in the outer side metal fitting covering an outer side of the room wall of the pressure receiving chamber not oppositely facing to the load direction constituted by the rubber elastic body, the room wall provided inside the window is formed in thin thickness, and this room wall can be swollen to outside the window. |
