PROBLEM TO BE SOLVED: To provide a vehicle body skeleton structure that is able to hinder an increase in deceleration in the event of front crash and is able to hinder deformation of a crashed side in the event of a fine lap crash.SOLUTION: A vehicle body skeleton structure S1 comprises: a pair of side rails 14, each having a bendable part 18 that bends outward in a vehicle width direction from the front of the vehicle toward the rear of the vehicle; a cross member 24 connecting the pair of side rails 14 on the vehicle front side of the bendable parts 18; a cross member 26 coupling the pair of side rails 14 on the vehicle rear side of the bendable parts 18; a cab mount bracket 34 projecting outward in the vehicle width direction from each bendable part 18; a coupling member 38 coupling the coupled part 36 of each side rail 14 and the cross member 24 or the vicinity of the coupled part 36 and the vicinity of the middle of the cross member 26; and a fragile part 39 provided at each coupled member 38 and fragile with respect to compression load.SELECTED DRAWING: Figure 2

    【課題】正面衝突時において減速度の増大を抑制でき、微小ラップ衝突時において衝突側に対し反衝突側の変形を抑制できる車体骨格構造を提供する。【解決手段】車体骨格構造S1は、車両前方から車両後方へ向かって車両幅方向外側へ屈曲する屈曲部18を備えた一対のサイドレール14と、屈曲部18の車両前方側で一対のサイドレール14を連結するクロスメンバ24と、屈曲部18の車両後方側で一対のサイドレール14を連結するクロスメンバ26と、屈曲部18から車両幅方向外側へ突出されたキャブマウントブラケット34と、サイドレール14とクロスメンバ24との結合部36又は該結合部36の近傍とクロスメンバ26の中央付近とを連結する連結部材38と、連結部材38に設けられ、圧縮荷重に対して脆弱な脆弱部39と、を有する。【選択図】図2


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    Title :

    VEHICLE BODY SKELETON STRUCTURE


    Additional title:

    車体骨格構造


    Contributors:

    Publication date :

    2018-07-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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