To provide a vibration damping device which enables improvement of vibration damping effect, is compact, and achieves weight reduction, and to provide a vehicle seat provided with the vibration damping device.SOLUTION: A vibration damping device 34 comprises a stepped bolt 36 and is formed including a shaft part 38 of the stepped bolt 36, a coil spring 48, a weight member 50, and a coil spring 52. The weight member 50 is a forced vibration state in which biasing forces exerted by the coil spring 48 and the coil spring 52 act on the weight member 50 disposed therebetween. Thus, vibration of a vehicle seat 10 can be damped effectively by setting a natural frequency of the weight member 50 to a resonant frequency of the vehicle seat 10. In the vibration damping device 34, the coil spring 48 and the coil spring 52 are used as biasing members that bias the weight member 50 to increase a stroke of the weight member 50. That is, the structure can increase kinetic energy caused by movement of the weight member 50 and achieves compactification and reduction of the weight of the vibration damping device 34.SELECTED DRAWING: Figure 3

    【課題】振動減衰効果が向上し、コンパクトで軽量化が可能な振動減衰装置、及びこの振動減衰装置が設けられた車両用シートを提供すること。【解決手段】振動減衰装置34が、段付ボルト36を備え、当該段付ボルト36の軸部38、コイルバネ48、錘部材50及びコイルバネ52を含んで構成され、錘部材50は、錘部材50を間においてコイルバネ48及びコイルバネ52による付勢力が作用する強制振動となっている。このため、錘部材50の固有振動数を車両用シート10の共振周波数に設定することで車両用シート10の振動を効果的に減衰することができる。振動減衰装置34は、錘部材50を付勢する付勢部材としてコイルバネ48及びコイルバネ52が用いられているため錘部材50のストロークを長くすることができる。つまり、錘部材50が移動する運動エネルギを大きくすることができ、振動減衰装置34ではコンパクトかつ軽量化を図ることができる。【選択図】図3


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    Titel :

    VIBRATION DAMPING DEVICE AND VEHICLE SEAT PROVIDED WITH THE SAME


    Weitere Titelangaben:

    振動減衰装置、及びこの振動減衰装置が設けられた車両用シート


    Beteiligte:
    SASAKI YOSHITAKA (Autor:in) / TOKIWA YUJI (Autor:in) / GOTO KATSUJI (Autor:in) / OTAKE YOSHINORI (Autor:in) / ANDO KOICHI (Autor:in)

    Erscheinungsdatum :

    2021-01-21


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / F16F SPRINGS , Federn



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