To provide a lower part vehicle body structure which achieves downsizing of an undercover and inhibits increase of a minimum ground clearance.SOLUTION: In a lower part vehicle body structure, a vehicle body floor 2 has step-up parts 48 connected to a floor tunnel 50 at both sides of the floor tunnel 50 as seen in a vehicle width direction in at least arrangement portions of first and second cross members 14, 16 on the vehicle body floor 2. The lower part vehicle body structure includes a mount member 70 which faces the floor tunnel 50 and connects the step-up parts 48 at both sides of the floor tunnel 50. The lower part vehicle body structure is provided with first and second under covers 102, 104 which cover the lower side of the mount member 70 so as to continue into a bottom surface of the vehicle body floor 2 located at the outside of the step-up parts 48 as seen in the vehicle width direction.SELECTED DRAWING: Figure 11

    【課題】アンダーカバーの小型化と、最低地上高の長大化が抑制された下部車体構造の提供すること。【解決手段】下部車体構造において、車体フロア2は、車体フロア2の少なくとも第1及び第2クロスメンバ14、16の配設部分におけるフロアトンネル50の車幅方向両側にフロアトンネル50と接続される段上げ部48を有し、下部車体構造は、フロアトンネル50と対向してフロアトンネル50両側の段上げ部48を連結するマウントメンバ70を備え、段上げ部48の車幅方向外側の車体フロア2の底面と連続するようにマウントメンバ70下側を覆う第1及び第2アンダーカバー102、104を設けている。【選択図】図11


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    Title :

    LOWER PART VEHICLE BODY STRUCTURE


    Additional title:

    下部車体構造


    Contributors:

    Publication date :

    2020-02-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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