The invention relates to the field of tire design, and discloses an all-steel radial tire capable of preventing stone clamping and groove cracking, the tire comprises a tread, a sidewall and a tire bead, the tread is provided with a circumferential first pattern groove, and the normal section of the first pattern groove is in an inverted trapezoidal shape; a second pattern groove with a U-shaped normal section is formed in the bottom of the first pattern groove; wherein the length of the lower bottom edge of the inverted trapezoid of the first pattern groove is b, the length of the upper bottom edge is b3, the length of the median line is b2, the height is h2, the angle of the pattern groove wall of the inverted trapezoid close to the center of the crown is beta1, and the angle of the pattern groove wall of the inverted trapezoid close to the shoulder is beta2; the side length of a U-shaped opening of the second pattern groove is b1, and the U-shaped depth is h1; 20 mm > = b > = 12 mm, 15 mm > = b2 > = 8 mm, 50 degrees > = beta1 + beta2 > = 30 degrees, a step is formed at the joint of the U shape and the inverted trapezoid, and b3 > b1. The tire pattern groove disclosed by the invention is capable of effectively preventing a tire from clamping stones and resisting groove cracks, so that the service life of the tire is prolonged, and the manufacturing cost is reduced.

    本发明涉及轮胎设计领域,公开了一种防夹石抗沟裂的全钢子午线轮胎,该轮胎包括胎面、胎侧和胎圈,所述的胎面设置有周向的第一花纹沟槽,第一花纹沟槽的正截面为倒梯形;第一花纹沟槽的底部设置有正截面为U型的第二花纹沟槽;其中:第一花纹沟槽倒梯形的下底边边长为b,上底边边长为b3,中位线长度为b2,高为h2,倒梯形近胎冠中心的花纹沟壁角度为β1,近肩部的花纹沟壁角度为β2;第二花纹沟槽U型开口边长为b1,U型深度为h1;并且20mm≥b≥12mm,15 mm≥b2≥8mm,50°≥β1+β2≥30°,U型和倒梯形连接处形成台阶,b3>b1。本发明所述轮胎花纹沟,有效防止轮胎夹石,抗沟裂,从而提高轮胎的使用寿命,且降低制造成本。


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    Titel :

    All-steel radial tire capable of preventing stone from being clamped and resisting ditch crack drop


    Weitere Titelangaben:

    一种防夹石抗沟裂降的全钢子午线轮胎


    Beteiligte:
    SHAN SHAOZHI (Autor:in) / WANG JING (Autor:in) / ZHAO XIAOXIA (Autor:in) / YANG YINAN (Autor:in) / WANG JIONG (Autor:in) / YUAN MENGDAN (Autor:in)

    Erscheinungsdatum :

    12.12.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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