To effectively reduce vibrations of a shaft member.SOLUTION: A vibration absorbing mechanism 100 is equipped with a first dynamic damper 20a and a second dynamic damper 20b installed at different positions in a direction of a center axis C of a shaft member 10 on an inner peripheral side of the hollow shaft member 10. Each of the first dynamic damper 20a and the second dynamic damper 20b includes an annular attaching portion 21 attached to the inner peripheral side of the shaft member 10, a mass body 22 eccentric about a center axis X of the attaching portion 21 on the inner peripheral side of the attaching portion 21, and a plurality of elastic bodies 23 that couple the attaching portion 21 and the mass body 22 on the inner peripheral side of the attaching portion 21. A first center axis Y1 of the mass body 2 of the first dynamic damper 20a and a second center axis Y2 of the mass body 2 of the second dynamic damper 20b are positioned on the opposite sides to each other across the center axis C of the shaft member 10.SELECTED DRAWING: Figure 1

    【課題】軸部材の振動を効果的に低減する。【解決手段】吸振機構100は、中空の軸部材10の内周側において当該軸部材10の中心軸Cの方向の相異なる位置に設置される第1ダイナミックダンパ20aおよび第2ダイナミックダンパ20bを具備する。第1ダイナミックダンパ20aおよび第2ダイナミックダンパ20bの各々は、軸部材10の内周側に取付けられる環状の取付部21と、取付部21の内周側において取付部21の中心軸Xに対して偏芯する質量体22と、取付部21の内周側において取付部21と質量体22とを連結する複数の弾性体23とを含む。第1ダイナミックダンパ20aの質量体2の第1中心軸Y1と、第2ダイナミックダンパ20bの質量体2の第2中心軸Y2とは、軸部材10の中心軸Cを挟んで相互に反対側に位置する。【選択図】図1


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    Title :

    VIBRATION ABSORBING MECHANISM


    Additional title:

    吸振機構


    Contributors:

    Publication date :

    2021-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16F SPRINGS , Federn / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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