PROBLEM TO BE SOLVED: To provide a vehicle body roof structure which can further suitably absorb impact of an in-cabin collision on an occupant head part.SOLUTION: A vehicle body roof structure constituting a roof part RF of a vehicle body comprises an impact absorption member 10 which is arranged in a portion between a roof panel 20 and a roof lining 21 in a state of abutting on the roof panel 20. When setting a distance from a position equivalent to a forehead of an in-cabin collision test dummy head DH regulated in FMVSS201 up to a position equivalent to an eye as L1, and a distance from the position equivalent to the forehead of the dummy head DH up to a position equivalent to a nose as L2, the impact absorption member 10 is arranged so as to abut on the roof lining 21 in a portion abutting on an outer edge RM of an upper roof being an installation position of the impact absorption member 10 of the roof part RF, and an air gap region 23 in which a structure for supporting the roof lining 21 while abutting thereon does not exist is formed in a portion in which the distance from the outer edge RM is L1 to L2.SELECTED DRAWING: Figure 3

    【課題】乗員頭部の車室内衝突に対する衝撃をより好適に吸収することのできる車体ルーフ構造を提供する。【解決手段】車体のルーフ部RFを構成する車体ルーフ構造は、ルーフパネル20に当接した状態で同ルーフパネル20とルーフライニング21との間の部分に設置された衝撃吸収部材10を備える。FMVSS201に規定する車室内衝突試験用のダミーヘッドDHにおける額に相当する位置から目に相当する位置までの距離をL1とし、同ダミーヘッドDHにおける額に相当する位置から鼻先に相当する位置までの距離をL2としたとき、ルーフ部RFにおける衝撃吸収部材10の設置箇所にあって、アッパルーフの外縁RMにあたる部分では、ルーフライニング21に当接するように衝撃吸収部材10を設置し、同外縁RMからの距離がL1〜L2の部分には、ルーフライニング21を当接支持する構造物が存在しない空隙領域23を設けるようにした。【選択図】図3


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    Title :

    VEHICLE BODY ROOF STRUCTURE


    Additional title:

    車体ルーフ構造


    Contributors:
    ABE KAORI (author) / UNO SHUSUKE (author) / TAMAOKI AKIHIRO (author)

    Publication date :

    2018-05-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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