To provide a side member reinforcement structure that can reduce the weight of a bulk and can prevent deformation of a side wall of a side member extending vertically at an inner side in a vehicle body width direction in the side member having an outward-opening shape.SOLUTION: A bulk 40 is disposed inside a side member 20 having an outward-opening shape, and is formed in a cross-sectional L-shape of a bottom wall portion 41 fixed to a lower wall 23 of the side member 20 and a standing wall portion 42 standing upward from an inner end portion of the bottom wall portion 41 in a vehicle body width direction to be fixed to a side wall 21 of the side member 20. Therefore, deformation of the lower wall 23 and the side wall 21 of the side member 20 is prevented by the bulk 40. In addition, the bulk 40 is formed in the cross-sectional L-shape of the bottom wall portion 41 and the standing wall portion 42, therefore, the bulk 40 can be reduced in weight compared with a case where the bulk 40 is formed in a cross-sectional U-shape.SELECTED DRAWING: Figure 3

    【課題】バルクの軽量化を図ることができ、外開き形状のサイドメンバにおいて車体幅方向内側で上下方向に延びるサイドメンバの側壁の変形を抑制できる、サイドメンバ補強構造を提供する。【解決手段】バルク40が、外開き形状のサイドメンバ20の内部に設けられており、サイドメンバ20の下壁23と固定される底壁部41と、底壁部41の車体幅方向内側端部から上方に立ち上がっておりサイドメンバ20の側壁21と固定される立壁部42と、からなる断面L字形状となっている。そのため、バルク40によりサイドメンバ20の下壁23および側壁21の変形が抑制される。また、バルク40が底壁部41と立壁部42からなる断面L字形状となっているため、バルク40が断面U字形状となっている場合に比べて、バルク40を軽量化できる。【選択図】図3


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    Title :

    SIDE MEMBER REINFORCEMENT STRUCTURE


    Additional title:

    サイドメンバ補強構造


    Contributors:

    Publication date :

    2021-02-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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