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 with the circumferential direction of at least 10° and at most 45°. The metal reinforcements of all the top layers of the top reinforcement are extensible and therefore such that, in their gummed state extracted from a polymer matrix, their structural elongations As are at least equal to 0.5%, their total elongations At at break are at least equal to 3% and their tensile Young's moduli E are at most equal to 150 GPa. The two working layers have an axial width of at least 60% of the tread width for the narrower layer and at least 70% of the tread width for the wider layer.
OPTIMISED ARCHITECTURE OF A CIVIL ENGINEERING TYRE
02.05.2024
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |