PROBLEM TO BE SOLVED: To suppress a land part from deforming in grounding while providing a sipe.SOLUTION: A land part 16 provided to a tread of a pneumatic tire is provided with a sipe 18. The sipe 18 includes a narrow-width part 20 of 0.6 mm or less in width, and the narrow-width part 20 has a calculated average roughness Ra of 1.6 μm or less at a pair of opposite wall faces 22, 24. A molding tool 50 for the pneumatic tire comprises a sipe plate 52 for molding the sipe, the sipe plate 52 includes a thin plate part 54 of 0.6 mm in thickness, and the thin plate part 54 has a calculated average roughness Ra of 1.8 μm or less at a pair of side faces 56, 58.SELECTED DRAWING: Figure 2

    【課題】サイプを設けつつ接地時における陸部の変形を抑制する。【解決手段】空気入りタイヤのトレッドに設けられた陸部16にサイプ18を設ける。サイプ18は、幅が0.6mm以下の幅狭部20を含み、幅狭部20は、対向する一対の壁面22,24の算出平均粗さRaが1.6μm以下である。空気入りタイヤの成形型50は、サイプを成形するためのサイプ板52を備え、サイプ板52は、厚みが0.6mm以下である薄板部54を含み、薄板部54は、一対の側面56,58の算出平均粗さRaが1.8μm以下である。【選択図】図2


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    Titel :

    PNEUMATIC TIRE AND MOLDING TOOL THEREFOR


    Weitere Titelangaben:

    空気入りタイヤ及びその成形型


    Beteiligte:
    KAJI SHINICHI (Autor:in)

    Erscheinungsdatum :

    2016-07-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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