PROBLEM TO BE SOLVED: To improve center wear resistant performance under a service condition of a light load.SOLUTION: In a tire meridian cross section in a 5% internal pressure state, the contour line of a surface of a tread part 2 is composed of a circular arc part J1 in a radius of curvature R1 and a circular arc part J2 except for a radius of curvature R2 of crossing at an inflection point P with this. The radius of curvature R2 is smaller than the radius of curvature R1. The inflection point P is positioned on a middle land part 11m. A distance Lp up to the inflection point P from a tire equator C is 0.35-0.50 time of a tread half width Wt.SELECTED DRAWING: Figure 2

    【課題】 軽荷重の使用条件下における耐センター摩耗性能を向上させる。【解決手段】 5%内圧状態におけるタイヤ子午断面において、トレッド部2の表面の輪郭線は、曲率半径R1の内の円弧部J1と、これに変曲点Pで交わる曲率半径R2の外の円弧部J2とからなる。曲率半径R2は、曲率半径R1より小な。変曲点Pは、ミドル陸部11m上に位置する。タイヤ赤道Cから変曲点Pまでの距離Lpは、トレッド半幅Wtの0.35〜0.50倍である。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    HEAVY LOAD TIRE AND MANUFACTURING METHOD OF HEAVY LOAD TIRE


    Additional title:

    重荷重用タイヤ、及び重荷重用タイヤの製造方法


    Contributors:

    Publication date :

    2018-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand



    HEAVY LOAD TIRE AND MANUFACTURING METHOD OF HEAVY LOAD TIRE

    KITANO TETSUYA | European Patent Office | 2023

    Free access

    HEAVY LOAD TIRE AND METHOD FOR MANUFACTURING HEAVY LOAD TIRE

    SATO AKIHITO | European Patent Office | 2020

    Free access

    Heavy load tire

    SAKAMOTO MASAKAZU / HASEGAWA TOMOO / EBATA HIROAKI | European Patent Office | 2023

    Free access

    HEAVY LOAD TIRE

    SATO AKIHITO | European Patent Office | 2020

    Free access

    HEAVY LOAD TIRE

    SUGIURA TAKASHI | European Patent Office | 2023

    Free access