To transmit a backward impact load inputted to a front end part of a side sill to a rear side of the side sill, without increasing mass and costs.SOLUTION: A lower vehicle body structure of vehicle comprises a side sill 10 arranged at a lower part of the vehicle and outside in a vehicle width direction, in which a closed cross section 10s extending in a longitudinal direction of the vehicle is formed, and a wheel 6 positioned in front of the side sill 10. The side sill 10 is provided with a side sill outer 21 having a front end part 27 and a body part 28 positioned closer to a rear side than the front end part 27. An outer-side reinforcement member 50 having a shape formed along a front surface part 271 of the front end part 27 and a side surface part 24 is joined to the front end part 27 of the side sill outer 21, from the inside or the outside of the closed cross section 10s. A front end 42f of the body part 28 opposes, in the longitudinal direction of the vehicle, to a rear end 54 of the side surface part 51 of the outer-side reinforcement member 50. The body part 28 has a protruding part 43 protruding to the inside of the closed cross section 10s with respect to the rear end 54 of the side surface part 51.SELECTED DRAWING: Figure 4

    【課題】質量およびコストを増大させることなく、サイドシル前端部に入力される後方向衝撃荷重をサイドシル後方へ伝達すること。【解決手段】車両の下部且つ車幅方向外側に配置され、内部に車両前後方向に延びる閉断面10sを形成するサイドシル10と、サイドシル10の前方に位置するホイール6を備え、サイドシル10には、前端部27と、前端部27より後方に位置する本体部28とを有するサイドシルアウタ21を備え、サイドシルアウタ21の前端部27には、該前端部27の前面部271および側面部24に沿った形状を有するアウタ側補強部材50が閉断面10sの内側又は外側から接合され、本体部28の前端42fは、アウタ側補強部材50の側面部51の後端54と車両前後方向において対向し、本体部28は、側面部51の後端54に対して閉断面10sの内側へ突出する突出部43を有する。【選択図】図4


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    Titel :

    LOWER VEHICLE BODY STRUCTURE OF VEHICLE


    Weitere Titelangaben:

    車両の下部車体構造


    Beteiligte:

    Erscheinungsdatum :

    2023-12-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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