The invention discloses a tire and a tire casing thereof. The tire casing comprises a tire tread portion, which comprises a middle cambered surface section and tire shoulder cambered surface sectionslocated on the two axial sides of the middle cambered surface section; the tire tread portion is symmetrically arranged relative to the axial center face of the tire casing, and the radial height of the tire tread portion is gradually decreased from the axial center to the two axial sides; the radial height descent quantity from the axial center of the middle cambered surface section to the axialedge of the middle cambered surface section is a first drop quantity; the radial height quantity from the axial center of the middle cambered surface section to the axial edge of the tire tread portion is a second drop quantity; and the ratio of the first drop quantity to the second drop quantity is 0.4-0.5. The tire casing of the tire provided by the invention can effectively improve abnormal eccentric wear at the tire shoulder of the tire casing.

    本发明公开一种轮胎及其外胎,其中,该外胎包括胎面部,所述胎面部包括中部弧面段和位于所述中部弧面段轴向两侧的胎肩弧面段,所述胎面部关于所述外胎的轴向中心面对称设置,且所述胎面部的径向高度自轴向中心向轴向两侧逐渐下降;所述中部弧面段的轴向中心至所述中部弧面段的轴向边缘的径向高度下降量为第一落下量,所述中部弧面段的轴向中心至所述胎面部的轴向边缘的径向高度下降量为第二落下量,所述第一落下量与所述第二落下量的比值在0.4‑0.5之间。本发明所提供轮胎的外胎能够有效改善外胎胎肩处的异常偏磨。


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    Title :

    Tire and tire casing thereof


    Additional title:

    一种轮胎及其外胎


    Contributors:
    ZOU JUN (author) / LIN ZHENTANG (author) / XU DUNHAO (author)

    Publication date :

    2020-07-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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