The invention discloses a ring part structure for improving internal cracks of a bead seam allowance, and relates to the technical field of radial tires, the ring part structure comprises a tire, a steel ring, a rubber core, a lining composite part and sidewall wear-resistant rubber, a tire body outer turn-up point is formed on the lining composite part, the tire body outer turn-up point is located above one end of a steel wire reinforcement outer turn-up point, and the steel wire reinforcement outer turn-up point is located above the other end of the tire body outer turn-up point. And the lining composite part is provided with an improvement mechanism for improving the inner crack of the bead seam allowance. By means of the improvement mechanism, in the using process of the tire, the modulus of the inner turn-up end point of the first steel wire can be increased, the tear resistance of the lining composite part at the inner end point of the first steel wire is improved, the quality risk of product seam allowance internal cracking is reduced, and the quality of the tire is effectively improved in the using process of the tire. The problem that due to the situation that a vehicle is overloaded or misused, stress concentration occurs at the end point of a steel wire reinforcement inner turn-up point, and therefore circumferential cracking occurs to a lining composite part is solved.
本发明公开了一种改善胎圈子口内裂的圈部结构,涉及子午线轮胎技术领域,包括轮胎、钢圈、胶芯、内衬复合件、胎侧耐磨胶,所述内衬复合件上形成有胎体外反包点,所述胎体外反包点位于钢丝补强外反包点的一端上方,所述内衬复合件上设置有用于改善胎圈子口内裂的改善机构。本发明通过改善机构,能够使轮胎在使用过程中,第一钢丝上内反包端点处的模量得到了增加,提高了第一钢丝上内端点处内衬复合件的抗撕裂性,降低的产品子口内裂的质量风险,有效改善轮胎在使用过程中,由于车辆的超载或使用不当等情况,导致钢丝补强内反包点处的端点发生应力集中的现象,因此致使内衬复合件发生圆周开裂的问题。
Ring part structure for improving internal crack of tire bead seam allowance
一种改善胎圈子口内裂的圈部结构
2025-02-25
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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