The invention relates to a heavy-load tire which comprises a tread, and a ground contact part of the tread comprises a central ground contact part and tire shoulder ground contact parts arranged on the two sides of the central ground contact part; the tread is further provided with a first main groove, a second main groove and pattern grooves, the first main groove and the second main groove are formed in the circumferential direction, the pattern grooves are formed in the axial direction, the first main groove is provided with continuous bends, and the bending angles range from 110 degrees to150 degrees; the first main grooves, the second main grooves and the pattern grooves can define a plurality of central pattern blocks at the central ground contact part, and the included angle between each first main groove and the corresponding pattern groove is 110-150 degrees; the second main grooves and the pattern grooves can define a plurality of tire shoulder pattern blocks at the tire shoulder ground contact part; and the total area of the central pattern blocks and the total area of the tire shoulder pattern blocks respectively account for 40%-50% of the total area of the ground contact part. The heavy-load tire has high braking force, load resistance and cutting resistance under heavy load, and the service life of the heavy-load tire is prolonged.
本发明涉及一种重载荷轮胎,其包括胎面,胎面的接地部包括中心接地部和设于中心接地部两侧的胎肩接地部;胎面还设有沿周向设置的第一主沟和第二主沟以及沿轴向布置的花纹沟,第一主沟设有连续折弯,各折弯角度为110°~150°;第一主沟、第二主沟和花纹沟能够在中心接地部围合形成多个中心花纹块,第一主沟和花纹沟之间的夹角为110°~150°;第二主沟和花纹沟能够在胎肩接地部围合形成多个胎肩花纹块;中心花纹块的总面积及胎肩花纹块的总面积分别占接地部的总面积的40%~50%。能够在重载荷下具有较强的制动力、抗载性能和抗切割性能,延长其使用寿命。
Heavy-load tire
一种重载荷轮胎
2020-05-12
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
HEAVY LOAD TIRE AND MANUFACTURING METHOD OF HEAVY LOAD TIRE
European Patent Office | 2018
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