PROBLEM TO BE SOLVED: To provide a bumper beam for an automobile that is light-weighted and excellent in energy absorption effect at a collision.SOLUTION: A bumper beam main body 13 made of fiber-reinforced resin to be arranged along a vehicle width direction comprises: a small cross-sectional area part 17 at a center in the vehicle width direction; a pair of cross-sectional area changing parts 19 continuous to outside in the vehicle width direction thereof; and a pair of large cross-sectional area parts 18 continuous to outside in the vehicle width direction thereof. As the small cross-sectional area part 17 projects most toward outside in a longitudinal direction at a pair of collision load input parts P, a peak value of a bending moment acting on the bumper beam main body 13 is reduced by inputting a collision load of a light collision to the pair of collision load input parts P of the bumper beam main body 13 as two-points concentrated loads, and the bending moment is supported by the cross-sectional area changing parts 19 and the large cross-sectional area parts 18 so as to reduce a wall thickness of the bumper beam main body 13, which can downsize and enhance strength of the main body.SELECTED DRAWING: Figure 2

    【課題】 軽量であって衝突時のエネルギー吸収効果に優れた自動車用バンパービームを提供する。【解決手段】 車幅方向に沿って配置される繊維強化樹脂製のバンパービーム本体13が、車幅方向中央の小断面積部17と、その車幅方向外側に連続する一対の断面積変化部19と、その車幅方向外側に連続する一対の大断面積部18とを備え、小断面積部17は一対の衝突荷重入力部Pにおいて前後方向外側に最も突出するので、軽衝突の衝突荷重をバンパービーム本体13の一対の衝突荷重入力部Pに2点集中荷重として入力させてバンパービーム本体13に作用する曲げモーメントのピーク値を低減するとともに、断面積変化部19および大断面積部18で曲げモーメントを支持することで、バンパービーム本体13の肉厚を減少させて軽量化を図りながら強度を高めることができる。【選択図】 図2


    Access

    Download


    Export, share and cite



    Title :

    BUMPER BEAM FOR AUTOMOBILE


    Additional title:

    自動車用バンパービーム


    Contributors:

    Publication date :

    2016-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    Automobile bumper beam

    YABU TOMOYA / KASHIWAGI MASAKAZU / MAESAKO YUSUKE et al. | European Patent Office | 2016

    Free access

    AUTOMOBILE BUMPER BEAM

    YABU TOMOYA / KASHIWAGI MASAKAZU / MAESAKO YUSUKE et al. | European Patent Office | 2016

    Free access

    BUMPER BEAM FOR AUTOMOBILE

    ISHIKAWA TAKESHI / ISHIE YUSUKE / CHEN YUAN et al. | European Patent Office | 2020

    Free access

    BUMPER BEAM FOR AUTOMOBILE

    ISHIKAWA TAKESHI / ISHIE YUSUKE / CHEN YUAN et al. | European Patent Office | 2020

    Free access

    BUMPER BEAM FOR AUTOMOBILE

    European Patent Office | 2023

    Free access