| 摘要 |
PURPOSE:To enable a mount to simultaneously satisfy a high damping characteristic in the range of low frequency vibration and a low dynamic spring constant in the range of high frequency vibration, by communicating the first and the second fluid chambers through two communication paths and providing a valve means, closed by the circulative action of fluid, in one of the communication paths. CONSTITUTION:The first fluid chamber 10 and the second fluid chamber 12 are communicated by two communication paths 32, 38, and one communication path 32 provides a valve means 40 closed by the circulative action of fluid circulatively flowing in the communication pathe 32. Then a amount performs the vibro- isolating action mainly by elastic deformation of an elastic member 8 when the valve means 40 is placed in an opening condition, while damps the vibration by circulative flow resistance of the communication path 38 when the valve means 40 is placed in a closing condition. In this way, a high damping characteristic in the range of low frequency vibration and a low dynamic spring constant in the range of high frequency vibration can be both satisfied. |
