PROBLEM TO BE SOLVED: To simultaneously reinforce a hinge attachment seat part of an upper part of a backdoor attachment opening part and an upper corner part of the opening part by a simple and light-weight structure.SOLUTION: A closed cross section structure is formed of a roof panel 4 and a roof back inner member 12, the closed cross section structure is joined to a side body 7 at an upper corner part 3 of an opening part, a reinforcement 13 is arranged and fixed over the side body 7 from a hinge attachment seat part 8 between the roof panel 4 and the roof back inner member 12, the reinforcement 13 is joined to a vertical wall 9 formed at a rear part of the roof panel 4 and the hinge attachment seat part, the reinforcement 13 is formed into a crank shape at a cross section, a mountain-folded ridge line 20L is formed at an upper side, a valley-folded ridge line 19L is formed at a lower side, and an interval H between the upper side and the lower side is set narrow in the vicinity of the hinge attachment seat part at the inside of a vehicle width direction, and set wide in the vicinity of the side body 7 at the outside of the vehicle width direction.

    【課題】バックドア取付用の開口部の上部のヒンジ取付座部と開口部の上隅部とを同時に、簡素で軽量な構造で補強する。【解決手段】ルーフパネル4とルーフバックインナメンバ12とで閉断面構造を形成し、閉断面構造を開口部の上隅部3でサイドボディ7に接合し、ルーフパネル4とルーフバックインナメンバ12との間で、ヒンジ取付座部8からサイドボディ7に渡ってリインフォース13を配置固定し、ルーフパネル4の後部に形成した縦壁9とヒンジ取付座部とにリインフォース13を接合し、リインフォース13は、断面クランク状に形成し、上側に山折りの稜線20L、下側に谷折りの稜線19Lを有し、上側と下側の稜線の間隔Hを、車幅方向内側のヒンジ取付座部付近では狭く、車幅方向外側のサイドボディ7付近では広くした。【選択図】図2


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    Title :

    OPENING PART STRUCTURE OF VEHICLE REAR PART


    Additional title:

    車体後部の開口部構造


    Contributors:

    Publication date :

    2015-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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