| 摘要 |
PROBLEM TO BE SOLVED: To restrain any displacement in the roll direction by connecting both inner and outer rings with a rubberlike elastic body, also connecting cushion rubber in an inside space of stopper rubber at the outer ring inside, to this outer ring, and specifying it as a damping characteristic material being higher than the rubberlike elastic body, thereby installing a clearance between these two parts of rubber. SOLUTION: Supposing that roll load is inputted into a roll mount from the upside in time of engine starting or the like, both inner and outer rings 1 and 2 are largely displaced in the radial direction because of largeness in the amplitude of vibration, whereby a clearance between a rubberlike elastic body 3 and upper cushion rubber 6 is crushed, and the rubberlike elastic body 3 and the cushion rubber 6 are made in contact with each other, so another clearance 8 between upper stopper rubber 4 and the upper cushion rubber 6 is crushed likewise, and thus the stopper rubber 4 and the cushion rubber 6 come in contact with each other. Consequently those of rubberlike elastic body 3, cushion rubber 6, and stopper rubber 4 are solidly set up in substance in accordance with the inputting direction of the roll load, bringing both high dynamic spring and high damping chracteristics into full play, and thus any dispalcement in the roll direction is controllable. Such a case of the roll load from the downside is the same as well. |
