The invention relates to the field of tire manufacturing, and particularly relates to an all-steel radial tire with a high-performance tire crown profile. According to the tire crown, a first crown arc section and a second crown arc section are sequentially arranged from the intersection point of a tire equatorial plane and a crown contour to the starting point of a tire shoulder; the circle center of the first crown arc section faces inwards, the circle center of the second crown arc section faces outwards, the two crown arc sections are tangent, and the circle centers are located on the inner side and the outer side of the tire crown contour respectively; the outer diameter R1 of the first crown arc section and the outer diameter R2 of the second crown arc section have the relation that R2 is greater than R1; and the horizontal width a of the second crown arc section and the horizontal width b of the tire crown have the relation that a/b is greater than or equal to 0.3 and less than or equal to 0.6. According to the contour of the tire crown, the length of the grounding mark of the tire shoulder is increased, the production cost is not increased, and meanwhile, the wear resistance and durability of the tire are improved.
本申请涉及轮胎制造领域,尤其涉及一种高性能胎冠轮廓的全钢子午线轮胎。一种轮胎胎冠,该轮胎胎冠从轮胎赤道面与胎冠轮廓的交点至胎肩的起始点的胎冠轮廓依次为第一段冠弧、第二段冠弧;所述第一段冠弧圆心朝内,第二段冠弧圆心朝外,两段冠弧相切,圆心分别在胎冠轮廓的内、外侧;所述第一段冠弧外径R1和第二段冠弧外径R2具有R2>R1的关系;所述第二段冠弧的水平宽度a和胎冠水平宽度b具有0.3≤a/b≤0.6的关系。本申请胎冠的轮廓,增加轮胎肩部接地印痕长度,能够不增加生产成本,同时提高轮胎的耐磨和耐久性能。
All-steel radial tire with high-performance tire crown profile
一种高性能胎冠轮廓的全钢子午线轮胎
2021-12-07
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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