PROBLEM TO BE SOLVED: To provide a carcass ply member which makes improvements with respect to reduced rigidity caused by unevenly arranged cords in a side part and insufficient durability caused by separation occurring at a ply end, and also to provide a pneumatic tire with such a carcass ply member wound up inwardly from the outside in a tire width direction.SOLUTION: The present invention relates to a pneumatic tire, in which a carcass ply member 6 for the pneumatic tire is made up by covering with rubber two carcass cords 61 including a first carcass cord 70 and a second carcass cord 80, and the first carcass cord and the second carcass cord are arranged to go back and forth between both ends 60A, 60B of the carcass ply member in a lateral direction X1 for meandering in a longitudinal direction Y1, such that intersections 65 of the first carcass cord and the second carcass cord are disposed at an even interval in the longitudinal direction Y1 in a lateral central region C and folding back portions 72, 82, 74, 84 and the intersections 65 form rhombic regions E, F disposed adjacent to each other in the longitudinal direction Y1.SELECTED DRAWING: Figure 3

    【課題】サイド部におけるコードの配列不均等による剛性低下及びプライ端に発生するセパレーションによる耐久力不足を改善したカーカスプライ部材及びこのカーカスプライをタイヤ幅方向外側から内側に巻き上げた空気入りタイヤの提供【解決手段】空気入りタイヤ用カーカスプライ部材6は、第1カーカスコード70と第2カーカスコード80との2本のカーカスコード61をゴム被覆してなり、カーカスプライ部材において、第1カーカスコード及び第2カーカスコードを横方向X1の両端部60A,60B間を往復させて縦方向Y1に蛇行する様に配することにより、横方向中央領域Cにおいて、第1カーカスコードと第2カーカスコードとの交差部65が縦方向Y1に等間隔に配置され、第1カーカスコード及び第2カーカスコードの折り返し部72,82,74,84と交差部65とにより菱形状領域E,Fが縦方向Y1に隣接配置される様に構成した空気入りタイヤ。【選択図】図3


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    Titel :

    PNEUMATIC TIRE AND CARCASS PLY MEMBER THEREOF


    Weitere Titelangaben:

    空気入りタイヤ及びそのカーカスプライ部材


    Beteiligte:
    TOMITAKA YU (Autor:in)

    Erscheinungsdatum :

    2018-07-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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