The invention relates to a tyre for agricultural vehicles, in particular the tread thereof, and aims to improve the field traction capability thereof on soft ground surfaces. According to the invention, the tyre comprises circumferentially distributed tread pattern elements (221), said tyre having a nominal cross-sectional width L, a central tread portion (211) centered on the equatorial plane (E) of the tyre and having an axial width L1 of not more than 0.15 * L and not less than 0.35 * L, said tread pattern elements (221) being separated in pairs by transverse grooves (231), according to the invention, the transverse grooves (231) form an angle with the circumferential direction (XX ') of at least 30 DEG, and the local groove volume fraction TEVL1 of the central tread portion (211), defined as the ratio of the volume VC1 of the transverse grooves (231) to the total volume V1 of the central tread portion (21) between the bearing surface (24) and the tread surface (25), does not exceed 15%.

    本发明涉及一种用于农用车辆的轮胎,特别是其胎面,并且目的为提高其在松软地面上的田地牵引能力。根据本发明,轮胎包括沿周向分布的胎面花纹元件(221),所述轮胎具有标称横截面宽度L、中心胎面部分(211),所述中心胎面部分(211)以轮胎的赤道平面(E)为中心,并且具有不大于0.15*L且不小于0.35*L的轴向宽度L1,所述胎面花纹元件(221)通过横向沟槽(231)成对隔开,所述横向沟槽(231)与周向方向(XX’)形成至少等于30°的角度,并且中心胎面部分(211)的局部沟槽体积率TEVL1不超过15%,所述局部沟槽体积率TEVL1定义为横向沟槽(231)的体积VC1与所述中心胎面部分(21)介于承载表面(24)和胎面表面(25)之间的总体积V1之间的比值。


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    Title :

    Tyre for agricultural vehicle comprising improved tread


    Additional title:

    包括改进的胎面的用于农用车辆的轮胎


    Contributors:

    Publication date :

    2023-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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