| 摘要 |
PURPOSE:To prevent a service machine from excessive resonance vibration caused by torque fluctuation about a power shaft, by providing the buckling strength sufficient for engine weight while improving the vibration resisting property to the rolling vibration of the engine. CONSTITUTION:A vibration preventing support device S is disposed between an engine mount 10 and a generator mount 14, and four sets of the vibration preventing rubber units A are disposed under such a condition as the post axes Z of respective vibration preventing rubbers 6 are slanted to the output shaft 9 side on both side positions sandwiching the axis of the output shaft 9. In the axial central portion of the vibration preventing rubber 6 is provided a through hole 13 having the axis orthogonal to said axis of rubber and the bore d smaller than the total remaining wall thickness in the direction orthogonal to said axis of the vibration preventing rubber 6. Thus, vibration preventing rubbers having high damping effect on rolling vibration and further sufficient buckling strength can be obtained. |
