The invention relates to a radial tyre (1) for heavy vehicles, comprising at least two working layers (321, 322, 323, 324), the reinforcing elements of which form an angle of at least 10 DEG and at most 45 DEG with the circumferential direction. The metal reinforcements of the crown layers of all the crown reinforcements are extendable so that, in the rubberized state removed from the polymer matrix, the structural elongation As thereof is at least equal to 0.5%, the total elongation at break At thereof is at least equal to 3%, and the tensile Young's modulus E thereof is at most equal to 150 GPa. For the two working layers, the axial width of the narrower layer is at least 60% of the tread width, and the axial width of the wider layer is at least 70% of the tread width.
本发明涉及一种用于重型车辆的子午线轮胎(1),包括至少两个工作层(321、322、323、324),其增强元件与周向方向形成至少10°且至多45°的角度。所有胎冠增强件的胎冠层的金属增强件是可延伸的,因此,在从聚合物基质中取出的橡胶化状态下其结构伸长As至少等于0.5%,其总断裂伸长At至少等于3%,其拉伸杨氏模量E至多等于150GPa。对于两个工作层,较窄层的轴向宽度至少为胎面宽度的60%,较宽层的轴向宽度至少为胎面宽度的70%。
Optimized structure of civil engineering tire
土木工程轮胎的优化结构
2023-08-18
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |