To provide a bumper attachment structure capable of exerting a bumper sag prevention capability and sustaining a pedestrian protection performance.SOLUTION: A bumper attachment bracket that projects forward in a vehicle is located in the center in a vehicle width direction of an upper frame of a radiator support. A bumper is fastened to the bracket. The fastening point is set to a point ahead of a position of a center of gravity of the bumper. Even when a moment of rotation having the bumper fastening point as a fulcrum occurs, the moment of rotation acts in a direction of pushing up the bumper. This prevents a sag of the bumper. A bead part intended to ensure rigidity is formed at a bracket proximal end. A front end point of the bead part is set to a point behind the fastening point of the bumper, and a rigidity breakpoint is set to the front end point. Accordingly, the bracket is prevented from affecting the impact absorption performance of the bumper in the event that a vehicle collides with an obstacle. When the lower end of the bracket is fastened to a center brace, the rigidity at the upper end of the center brace is improved.SELECTED DRAWING: Figure 9

    【課題】バンパの垂れ下がり防止機能と歩行者保護性能の維持とを発揮できるバンパ取付構造を提供する。【解決手段】 ラジエータサポートのアッパーフレームの車幅方向中央部に車両前方に突出するバンパ取付用ブラケットを配置し、このブラケットにバンパを締結し、その締結点をバンパの重心位置よりも前方に設定し、バンパ締結点を支点とする回転モーメントが発生したとしてもバンパを押し上げる方向に作用し、これによりバンパの垂れ下がりを防止する。ブラケット基端部側には剛性を確保するためのビード部を形成すると共にビード部の前端終点をバンパの締結点よりも後方に設定し、その前端終点に剛性断点を設定し車両の障害物衝突時にブラケットがバンパの衝撃吸収性能に影響を及ぼさないようにする。ブラケットの下端部をセンターブレースに締結することで、センターブレースの上端部における剛性を向上させる。【選択図】図9


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    Title :

    BUMPER ATTACHMENT STRUCTURE OF VEHICLE


    Additional title:

    車両のバンパ取付構造


    Contributors:

    Publication date :

    2020-07-09


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge



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