| 摘要 |
In a vibration proofing apparatus, two second pressure receiving liquid chambers are arranged between an outer tube and a mounting attachment, and are configured to communicate with an auxiliary liquid chamber through two second orifices when an auxiliary vibration along an auxiliary amplitude direction orthogonal to an axial direction is input to the mounting attachment, a rubber elastic body is elastically deformed along an auxiliary amplitude direction, and expands and contracts an internal volume of the second pressure receiving liquid chambers. At this time, since a resonance phenomenon is generated in the liquid circulating between the second pressure receiving liquid chambers and the auxiliary liquid chamber through the second orifices in synchronization with the input auxiliary vibration, a low-frequency vibration input along the auxiliary amplitude direction due to a pressure change, and a viscous resistance generated together with the resonance phenomenon of the liquid is effectively absorbed. |
