| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bush device capable of suppressing noise generated by an apparatus mounted on a vehicle.SOLUTION: A supported body 13 including a motor 11 is supported by a supporting structure 10 on a vehicle body side through a bush device 21. The bush device 21 includes an outer cylinder 40, an inner cylinder 41, an outer elastic body 50, an inner elastic body 51, an intermediate plate 55, and a mass member 60. The mass member 60 includes a pair of adjustment plates 60a and 60b, and is fixed to the intermediate plate 55. The intermediate plate 55 is disposed between the outer elastic body 50 and the inner elastic body 51. An intermediate vibration system 70 is constituted by the intermediate plate 55 and the mass member 60. A clearance between the outer cylinder 40 and the inner cylinder 41 works as a transmission path of vibration, and the intermediate plate 55 is vibrated between the outer elastic body 50 and the inner elastic body 51. The mass member 60 has mass allowing the intermediate plate 55 to resonate in order to control the vibration of a frequency generating the noise to have aimed transmission properties.</p> |
