To provide a seat vibration reduction device which does not change a weight of a seat and can suppress increase of cost while being capable of achieving a structure that is effective against vibrations with a wide range of frequencies.SOLUTION: A seat vibration reduction device is constituted in such a manner that: a seat back 3 for supporting the back of an occupant in a seat in a vehicle body is provided with a seat pad 3B on which vertical ribs 35 protruded rearward are formed; it is provided with a plate-shaped member 36 which is a hard member arranged along a rear wall of the seat back 3 and with which the tips of the vertical ribs 35 come into contact, with the vertical ribs 35 being arranged in a state of being in contact with the plate-shaped member 36; and when the seat pad 3B receives a lateral load and is displaced in the left/right direction with respect to the plate-shaped member 36 by pivoting on the vertical ribs 35, it is capable of restoring its original posture.SELECTED DRAWING: Figure 2
【課題】シート重量を変えずにコストの増大を抑制することができ、しかも幅広い周波数の振動に対しても効果的となる構造を実現できる。【解決手段】車体のシートにおいて乗員の背部を支持するシートバック3には、後側に向けて突出する縦リブ35が形成されたシートパッド3Bが設けられ、シートバック3の後壁に沿って配置され、縦リブ35の先端が当接される硬質部材の板状部材36が設けられ、縦リブ35は、板状部材36に当接した状態で配置され、シートパッド3Bは、横荷重が掛かったときに縦リブ35を軸にして板状部材36に対して左右方向に変位した場合に、元の姿勢に復元可能に設けられた構成のシート振動低減装置を提供する。【選択図】図2
SEAT VIBRATION REDUCTION DEVICE
シート振動低減装置
2019-01-31
Patent
Electronic Resource
Japanese