The invention relates to the field of tires, in particular to an all-steel radial tire which comprises a tire body layer, a tire core layer and a tire core layer, the steel wire wrapping cloth layer is arranged on the outer side of the tire body layer and connected to form a framework; the lining rubber layer wraps the inner side of the framework, is arranged on the outer side of the tire body layer and covers the steel wire wrapping cloth layer; the seam allowance rubber layer wraps the seam allowance part of the framework; wherein a rim fitting width point w1 is arranged on the edge of the outer side of the seam allowance rubber layer; a first positioning line L1 is formed by extending along the vertical direction from the rim bonding width point w1; and the inner end point of the steel wire wrapping cloth layer is lower than or equal to the intersection point of the first positioning line L1 and the inner contour of the tire. According to the all-steel radial tire, the inner end point of the steel wire wrapping cloth layer is limited to be lower than or equal to the intersection point of the first positioning line L1 formed by extending from the rim bonding width w1 in the vertical direction and the inner contour of the tire, so that the rigidity of the tire bead part of the tire can be in uniform transition, and the bearing performance of the tire bead part is improved.
本发明涉及轮胎领域,尤其涉及一种全钢子午线轮胎,其中,全钢子午线轮胎包括:胎体层;钢丝包布层,设置于胎体层外侧并连接形成有骨架;内衬胶层,包裹于骨架的内侧,且设置于胎体层的外侧并覆盖钢丝包布层;子口胶层,包裹于骨架的子口部;其中,子口胶层的外侧边缘设置有轮辋着合宽度点w1;并且,自轮辋着合宽度点w1沿竖直方向延伸形成有第一定位线L1;以及,钢丝包布层的内端点低于或等于第一定位线L1与轮胎内轮廓的交点。该全钢子午线轮胎,通过限定钢丝包布层的内端点低于或等于自轮辋着合宽度w1沿竖直方向延伸形成的第一定位线L1与轮胎内轮廓的交点,可以使轮胎的胎圈部位刚性均匀过渡,提升胎圈部位的承载性能。
All-steel radial tire
全钢子午线轮胎
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Processing method of all-steel radial tire and all-steel radial tire
European Patent Office | 2020
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