| 摘要 |
PURPOSE:To restrain vibration of a vibration preventing mount for vehicles or the like in the upper, lower and rolling directions by affording communication between a plurality of chamber spaces in a hollow elastic body through orifices to fill a continuously bubble foaming body in at least one chamber space. CONSTITUTION:When vibration in the rolling direction is put between a holders 12, 18, a continuously bubble foaming body 21 is compressed between an elastic body 17 and the cylindrical portion 3a of a partition plate 13 so that liquid contained in the bubbles moves through orifices 23 to restrain the vibration with its resistance. The volume change of the chamber space caused by the vibration is absorbed by the change in an elastic diaphragm 14. On the other hand, when the vertical vibration enters, the liquid in the chamber space 20 moves through an orifice 24 to restrain the vibration with its resistance. And if the flow path areas of the orifices 23, 24 are properly set, the vibration inputs of the vertical and rolling directions can be effectively restrained. |
