To provide a vehicle lower part structure capable of absorbing impact upon side collision at an outer end part in a vehicle width direction.SOLUTION: A vehicle lower part structure 10 includes: a center tunnel 11 extending in a vehicle longitudinal direction at a central part in the vehicle width direction; a rocker 12 extending in the vehicle longitudinal direction at both end parts in the vehicle width direction; and a front floor cross member 20 extending in the vehicle width direction between the center tunnel 11 and the rocker 12. At a rocker side end part of the front floor cross member 20, a top surface part 21 of the front floor cross member 20 has an inclination part 21A inclining upward toward the central part. On the rocker side end part side and the central part side of the inclination part 21A in the vehicle width direction, flat parts 21B and 21C with more gentle inclination than the inclination part 21A are each formed continuously to the inclination part 21A.SELECTED DRAWING: Figure 2

    【課題】車幅方向の外側端部にて側突時の衝撃を吸収することができる車両下部構造を提供する。【解決手段】車幅方向の中央部にて車両前後方向に沿って伸びるセンタトンネル11と、車幅方向の両端部にて車両前後方向に沿って伸びるロッカ12と、センタトンネル11とロッカ12との間にて車幅方向に沿って伸びるフロントフロアクロスメンバ20と、を備える車体下部構造10であって、フロントフロアクロスメンバ20のロッカ側端部において、フロントフロアクロスメンバ20の天面部21には、中央部に向かって上方に傾斜している傾斜部21Aが形成され、傾斜部21Aの車幅方向のロッカ側端部側と中央部側には、傾斜部21Aよりも傾斜の緩い平坦部21B、21Cがそれぞれ傾斜部21Aと連続して形成されている。【選択図】図2


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    Title :

    VEHICLE LOWER PART STRUCTURE


    Additional title:

    車両下部構造


    Contributors:

    Publication date :

    2023-05-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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