PROBLEM TO BE SOLVED: To provide a method capable of efficiently testing durability to PTL (ply turn up loose).SOLUTION: A disclosed method is the method for testing durability with respect to separation of a cord from rubber at an end 30 at a turn-up portion 28 of a carcass ply 24. The method includes: a first heating step in which a tire 2 which is mounted on a rim 32 and filled with gas is heated; a second heating step in which the tire 2 is solely heated; and a running step in which the tire 2 is driven to run on a running test machine 36. A heating temperature T1 of the tire 2 in the first heating step is preferably 50-130°C. A heating temperature T2 of the tire 2 in the second heating step is preferably 50-130°C.SELECTED DRAWING: Figure 2

    【課題】PTLに対する耐久性が効率よく試験できる方法の提供。【解決手段】本発明は、カーカスプライ24の折返し部28の端30でのコードのゴムからの剥離に対する耐久性の試験方法に関する。この方法は、リム32に装着され気体が充填されたタイヤ2を加熱する第一加熱工程、上記タイヤ2単体を加熱する第二加熱工程及び走行試験機36において上記タイヤ2を走行させる走行工程を有する。好ましくは、上記第一加熱工程における上記タイヤ2の加熱温度T1は、50℃以上130℃以下である。好ましくは、上記第二加熱工程における上記タイヤ2の加熱温度T2は、50℃以上130℃以下である。【選択図】図2


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    Title :

    TIRE DURABILITY TEST METHOD


    Additional title:

    タイヤの耐久性試験方法


    Contributors:

    Publication date :

    2018-08-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B60C VEHICLE TYRES , Fahrzeugreifen



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