PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of achieving both wet brake performance by water absorption and steering stability at high level, without damaging weight reduction effect due to foam formation.SOLUTION: A pneumatic tire uses a foam rubber layer on a tread part, and in the pneumatic tire, has circle rate of a bubble defined by following formula (1) satisfies 0.8-1.0, where in the formula, circularity is the circle rate, area is area of the bubble, and perimeter is peripheral length of the bubble.SELECTED DRAWING: None

    【課題】発泡による軽量化効果を損なうことなく、吸水によるウエット制動性能、操縦安定性を高度に両立できる空気入りタイヤを提供する。【解決手段】発泡ゴム層をトレッド部に用いた空気入りタイヤであって、下記式[数1](式中、circularityは円形率、areaは気泡面積、perimeterは気泡周長である)で定義される気泡の円形率が0.8〜1.0を満たすことを特徴とする空気入りタイヤに関する。【選択図】なし


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:

    Publication date :

    2018-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08J Verarbeitung , WORKING-UP



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