To achieve both improvement in braking performance on dry road surfaces and wet road surfaces, and improvement in braking performance on snowy and icy road surfaces.SOLUTION: A tire includes a tread 10 with blocks 30 in which sipes are formed. A sipe has a first wall surface 52 and a second wall surface 53 facing each other. The first wall surface 52 has a first protrusion 54 at an intermediate position in a sipe depth direction, whereas the second wall surface 53 has a second recess 57 at an intermediate position in the sipe depth direction. Both lateral surfaces in the sipe depth direction of the first protrusion 54 are inclined relative to a width direction of a sipe, in a direction of enlarging their mutual interval toward a tip end. Both lateral surfaces in the sipe depth direction of the second recess 57 are inclined relative to the width direction of a sipe, in a direction of enlarging their mutual interval toward a deep end. The first protrusion 54 is disposed inside the second recess 57, and is engaged with the second recess 57 when moving in a direction of coming off from within the second recess 57.SELECTED DRAWING: Figure 4

    【課題】乾燥路面、湿潤路面での制動性能向上と、雪氷路面での制動性能向上との両立を図る。【解決手段】実施形態の一例であるタイヤは、サイプが形成されたブロック30を有するトレッド10を含む。サイプは、対面する第1壁面52及び第2壁面53を有する。第1壁面52は、サイプ深さ方向中間位置に第1突起54を有し、第2壁面53は、サイプ深さ方向中間位置に第2窪み57を有する。第1突起54のサイプ深さ方向両側面は、先端に向かって互いの間隔が大きくなる方向に、サイプの幅方向に対し傾斜する。第2窪み57のサイプ深さ方向両側面は、奥端に向かって互いに間隔が大きくなる方向に、サイプの幅方向に対し傾斜する。第1突起54は、第2窪み57内に配置され、第2窪み57内から抜け出る方向に移動したときに、第2窪み57に係合するように構成される。【選択図】図4


    Access

    Download


    Export, share and cite



    Title :

    PNEUMATIC TIRE AND TIRE MOLDING DIE


    Additional title:

    空気入りタイヤ及びタイヤ成型用金型


    Contributors:

    Publication date :

    2024-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS



    PNEUMATIC TIRE AND PNEUMATIC TIRE MOLDING

    YONETSU ISAO | European Patent Office | 2019

    Free access

    Pneumatic tire and pneumatic tire molding

    YONETSU ISAO | European Patent Office | 2021

    Free access

    PNEUMATIC TIRE AND PNEUMATIC TIRE MOLDING DIE

    YONEZU ISAO | European Patent Office | 2019

    Free access

    PNEUMATIC TIRE AND TIRE MOLDING MOLD

    KIDESAKI TAKASHI | European Patent Office | 2021

    Free access

    PNEUMATIC TIRE AND TIRE MOLDING MOLD

    KAMATA NOBUYUKI | European Patent Office | 2024

    Free access