PROBLEM TO BE SOLVED: To improve load transmission efficiency during front collision.SOLUTION: A vehicle lower part vehicle body structure comprises: torque boxes 15 extending from rear parts of left and right front side frames 7 which extend in a vehicle cross direction on a front part of a floor panel 2, toward a rear side vehicle width direction outside, and connected to a front part of a side sill 3; and front side frame extension parts 11 extending from rear parts of the front side frames 7 to a rear side vehicle width direction inside, and connected to a front part of a tunnel side frame 7. The structure further comprises cross members 16 which extend to a rear side vehicle width direction outside in an inclined manner. The cross members 16 are configured so that, front end parts thereof overlap a branch part D between the torque boxes 15 and the front side frame extension parts 11 on the rear sides of the front side frames 7, in plan view.SELECTED DRAWING: Figure 3

    【課題】前突時における荷重伝達効率の向上を図ること。【解決手段】フロアパネル2の前方において車両前後方向へ延びる左右のフロントサイドフレーム7の後部から後方側程車幅方向外側に延びてサイドシル3の前部と接続するトルクボックス15と、フロントサイドフレーム7の後部から後方側程車幅方向内側に延びてトンネルサイドフレーム7の前部と接続するフロントサイドフレーム延長部11とを備えた構成において、後方側程車幅方向外側に傾斜して延びる前後メンバ16が設け、該前後メンバ16を、その前端部がフロントサイドフレーム7の後部におけるトルクボックス15とフロントサイドフレーム延長部11との分岐部Dに平面視で重なるように配設した。【選択図】図3


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    Title :

    VEHICLE LOWER PART VEHICLE BODY STRUCTURE


    Additional title:

    車両の下部車体構造


    Contributors:

    Publication date :

    2016-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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