PROBLEM TO BE SOLVED: To provide a pneumatic tire that is improved in quietness while maintaining high drainage performance and traction performance.SOLUTION: The pneumatic tire has one and more land parts sandwiched between a plurality of circumferential main grooves extending in a tire circumference direction provided at a tread surface. At least one of the circumferential main grooves is constituted of a plurality of circumferential split main grooves split in the tire circumference direction. In the circumferential split main grooves, positions in a tire width direction of one side ends in the tire circumference direction are different from positions in the tire width direction of the other side ends in the tire circumference direction. Between the circumferential split main grooves are arranged connection grooves that connect the one side ends of the circumferential split grooves to the other side ends of the circumferential split main grooves adjacent in the tire circumference direction to the circumferential split main grooves. Shapes of cross sections along the tire width direction of the connection groove bottoms are formed in a curve shape.SELECTED DRAWING: Figure 1

    【課題】本発明は、高い排水性能及びトラクション性能を維持しつつ、静粛性を向上させた空気入りタイヤを提供することを目的とする。【解決手段】本発明の空気入りタイヤは、トレッド踏面に、タイヤ周方向に延びる複数の周方向主溝により挟まれた1以上の陸部を有し、少なくとも1つの前記周方向主溝は、タイヤ周方向に分断された複数の周方向分断主溝により構成されており、前記周方向分断主溝は、タイヤ周方向の一方側端のタイヤ幅方向の位置と、タイヤ周方向の他方側端のタイヤ幅方向の位置が異なっており、前記周方向分断主溝間には、前記周方向分断主溝の前記一方側端と、前記周方向分断主溝とタイヤ周方向に隣接する他の前記周方向分断主溝の前記他方側端とを連結する連結溝が配置されており、前記連結溝は、タイヤ幅方向に沿った溝底の断面形状が曲面状である、ことを特徴とするものである。【選択図】図1


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    Title :

    PNEUMATIC TIRE


    Additional title:

    空気入りタイヤ


    Contributors:
    KIWAKI KOYO (author) / FUJITA SHUNGO (author)

    Publication date :

    2016-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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