| 摘要 |
PURPOSE: To reduce collision sound or undesirable noises to be generated by discontinuity of reciprocating displacement of a conventional valve member. CONSTITUTION: A hydraulic anti-vibration support is composed of two rigid frame members, one elastomer body, two sealing chambers, a restricted passage 7 for communicating the chambers with each other, a valve member 8 defining parts of the two chambers and having a rotational axis, and two grids 9, 10 positioned across the valve member and for limiting the movement of the valve member. A plurality of ribs 25 are provided in order to press the valve member against the grids substantially and angularly around the axis, and the ribs are distributed and arranged around the axis so as not to be angularly repeated. |
