To provide a pneumatic tire which few generation of crack around a hole periphery happens and pin anti-detachment property of a stud pin enhances in the pneumatic tire which includes a hole for attaching the stud pin on a tread part.SOLUTION: In the pneumatic tire which includes the hole for attaching the stud pin in which the stud pin is buried on the tread part, an internal wall surface of the hole for attaching the stud pin includes a first region and a second region of which surface roughness is finer than the first region in a hole depth direction from the tread surface toward hole bottom of the hole for attaching the stud pin. The second region is provided on hole bottom side with respect to the first region.SELECTED DRAWING: Figure 3

    【課題】スタッドピン取付用孔をトレッド部に有する空気入りタイヤにおいて、孔周りにクラックの発生が少なく、スタッドピンの耐ピン抜け性が向上する空気入りタイヤを提供する。【解決手段】スタッドピンが埋設されるスタッドピン取付用孔をトレッド部に有する空気入りタイヤは、前記スタッドピン取付用孔の内壁面は、トレッド表面からスタッドピン取付用孔の孔底に向かう孔深さ方向に沿って、第1の領域と、前記第1の領域より表面粗さが細かい第2の領域と、を有する。前記第2の領域は、前記第1の領域に対して、孔底の側に設けられる。【選択図】図3


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    Title :

    PNEUMATIC TIRE, MOLD PIN AND TIRE MOLD TOOL WITH MOLD PIN


    Additional title:

    空気入りタイヤ、モールドピン、及びモールドピン付きタイヤ金型


    Contributors:
    HOMMA KENTA (author)

    Publication date :

    2019-07-18


    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 / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand



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