The invention relates to the field of tires, in particular to a safe and durable tire capable of avoiding abnormal wear of an early tire crown edge. The tire comprises a tire crown, a tire shoulder and a tire sidewall, the maximum width of a tire section is B, a horizontal shaft is located at the widest position of the tire section, and the tire sidewall above the horizontal shaft is an upper tire sidewall; the point D is located on the edge of the tire crown, the curvature radius of the widest position of the section of the upper tire side arc tire is R1, the arc corresponding to R1 is marked as the upper tire side arc R1, and the arc with the curvature radius R2 is marked as the upper tire side arc R2; wherein the circle center of the upper tire side arc R1 is on the horizontal axis, and the value of R1 is 1/3B-2/3B; the upper tire side arc R2 passes through the point D and is in reverse arc tangency with the upper tire side arc R1, and the circle center of the upper tire side arc R2 is located above the horizontal line of the point D. Compared with the prior art, the invention provides the durable low-rolling-resistance tire capable of avoiding abnormal wear of the early-stage tire crown edge, the rigidity of the sidewall part is enhanced, the durability of the tire is effectively improved, the rolling resistance is reduced, and abnormal wear of the early-stage tire crown edge of the tire is avoided.
本发明涉及轮胎领域,具体地说,涉及一种安全耐用并避免早期胎冠边缘异常磨损的轮胎。该轮胎包括胎冠、胎肩和胎侧,轮胎切面最大宽度为B,水平轴位于轮胎切面最宽处位置,水平轴上方胎侧为上胎侧;D点位于轮胎胎冠边缘上,上胎侧弧轮胎断面最宽处曲率半径为R1,R1对应的圆弧记作上胎侧弧R1,曲率半径为R2的圆弧记作上胎侧弧R2;其中,上胎侧弧R1圆心在水平轴上且R1取值1/3B‑2/3B;上胎侧弧R2过D点与上胎侧弧R1反弧相切,上胎侧弧R2圆心位于D点的水平线上方。与现有技术相比,本发明提供了一种耐久低滚阻并避免早期胎冠边缘异常磨损的轮胎,增强胎侧部位的刚性,有效提升了轮胎的耐久性能、降低了滚动阻力,并避免轮胎早期胎冠边缘异常磨损。
Durable low-rolling-resistance tire capable of avoiding abnormal wear of tire crown edge in early stage
一种耐久低滚阻并避免早期胎冠边缘异常磨损的轮胎
2023-07-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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