PROBLEM TO BE SOLVED: To provide a vehicle body floor structure which improves rigidity of a connection portion in a floor tunnel so that causes of floor vibration degradation can be eliminated.SOLUTION: In a vehicle body floor structure, a rear floor panel 3 is arranged on a rear side of a main floor panel 2, the rear floor panel 3 is constituted as a step section 4 higher than the main floor panel 2 by one step in a connection portion between the main floor panel 2 and the rear floor panel 3, and a rear seat 7 is arranged at a front position of the rear floor panel 3. A cross member 6 is provided to connect a side sill and a floor tunnel 1 on a front surface of the step section 4. A reinforcement member 9 forming a front wall surface and a closed section of the cross member 6 is disposed in a vehicle width direction center portion of the cross member 6 connected to the floor tunnel 1. The reinforcement member 9 is provided with a lateral wall section 9c extending to the vehicle body front. The lateral wall section 9c is formed into a brace shape toward an upper wall surface of the reinforcement member 9.SELECTED DRAWING: Figure 1

    【課題】 本発明は、フロアトンネルの接続部分の剛性の向上を図り、フロア振動悪化の原因を解消できる車体フロア構造を提供する。【解決手段】 メインフロアパネル2の後方にリヤフロアパネル3が配置され、前記メインフロアパネル2とリヤフロアパネル3の接続部分において前記メインフロアパネル2より前記リヤフロアパネル3が一段高い段差部4に構成されており、前記リヤフロアパネル3の前部位置にリヤシート7が配置される車体フロア構造であって、前記段差部4の前面に、サイドシルとフロアトンネル1を結ぶクロスメンバ6が設けられ、前記フロアトンネル1と連結される前記クロスメンバ6の車幅方向中央部分に、前記クロスメンバ6の前部壁面と閉じ断面を形成する補強部材9が配設され、前記補強部材9は、車体前方に延出した横壁部9cを設け、該横壁部9cが前記補強部材9の上部壁面に向けて筋交い形状に形成されていることにある。【選択図】 図1


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    Title :

    VEHICLE BODY FLOOR STRUCTURE


    Additional title:

    車体フロア構造


    Contributors:

    Publication date :

    2018-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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