PROBLEM TO BE SOLVED: To simultaneously restrict shoulder fall wear in a shoulder area and a step wear.SOLUTION: A tread part 2 has a shoulder area Ys having a contour shape formed from an arc such that the shoulder area is greater in curvature radius R2 than a center area Yc. A distance L from the center of a shoulder main groove 3 to a tire equator Co is 0.45 to 0.55 times as long as a ground half width TW. The shoulder area Ys comprises a shoulder longitudinal narrow groove 5 near a tread ground end Te, and a shoulder lateral groove 9 extending from the shoulder longitudinal narrow groove 5 to a shoulder main groove 3. The depth of the shoulder lateral groove 9 is less than that of the shoulder main groove 3.SELECTED DRAWING: Figure 2

    【課題】 ショルダ領域における肩落ち摩耗と段差摩耗とを同時に抑制する。【解決手段】 トレッド部2は、ショルダ領域Ysが、センタ領域Ycよりも大な曲率半径R2を有する円弧からなる輪郭形状を有する。ショルダ主溝3の溝中心からタイヤ赤道Coまでの距離Lは、接地半巾TWの0.45〜0.55倍である。ショルダ領域Ysは、トレッド接地端Te近傍のショルダ縦細溝5と、ショルダ縦細溝5からショルダ主溝3までのびるショルダ横溝9とを具える。ショルダ横溝9の溝深さは、ショルダ主溝3よりも小である。【選択図】図2


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    Title :

    HEAVY LOAD TIRE


    Additional title:

    重荷重用タイヤ


    Contributors:

    Publication date :

    2016-12-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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