PROBLEM TO BE SOLVED: To provide a vibration damping device which can improve a vibration damping effect, which is compact and which can be made light in weight, and a vehicle seat on which the vibration damping device is provided.SOLUTION: A vibration damping device 34 comprises: a shaft part; a coil spring 48; a weight member 50; and a coil spring 52. The weight member 50 is configured so that energization force by the coil springs 48, 52 acts, with the weight member 50 arranged therebetween, namely, forced vibration is provided. Accordingly, by setting a specific frequency of the weight member 50 to a resonance frequency of the vehicle seat 10, the vibration of the vehicle seat 10 can be damped effectively. Further, the vibration damping device 34 uses the coil spring 48 and the coil spring 52 as energization members for energizing the weight member 50, so that a stroke of the weight member 50 can be made longer. Namely, kinetic energy by movement of the weight member 50 can be increased, and thus, the vibration damping device 34 can be made compact and light in weight.SELECTED DRAWING: Figure 4
【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、軸部、コイルバネ48、錘部材50及びコイルバネ52を含んで構成されており、錘部材50は、当該錘部材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、いわゆ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により、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。また、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、当該振動減衰装置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4
VIBRATION DAMPING DEVICE AND VEHICLE SEAT ON WHICH VIBRATION DAMPING DEVICE IS PROVIDED
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
2018-04-26
Patent
Elektronische Ressource
Japanisch
Vibration damping device and vehicle seat provided with the vibration damping device
Europäisches Patentamt | 2019
|VIBRATION DAMPING DEVICE AND VEHICLE SEAT PROVIDED WITH THE VIBRATION DAMPING DEVICE
Europäisches Patentamt | 2018
|VIBRATION DAMPING DEVICE AND VEHICLE SEAT PROVIDED WITH THE VIBRATION DAMPING DEVICE
Europäisches Patentamt | 2018
|Vibration damping device, vibration damping system and vehicle seat
Europäisches Patentamt | 2020
|VIBRATION DAMPING DEVICE AND VEHICLE SEAT PROVIDED WITH THE SAME
Europäisches Patentamt | 2021
|