| 摘要 |
The invention relates to a heavy goods vehicle tyre of the radial carcass construction, having an external radius R greater than 1000 mm, comprising a crown reinforcement radially interposed between the carcass reinforcement (5) and the tread (4) and said crown reinforcement consisting of at least one protective crown reinforcement (6, 7) radially adjacent to the tread. According to the invention, the tyre comprises a complex (8) consisting of at least one layer (11) of polymer compound of an axial width shorter than the width of the working crown reinforcement and of a thickness in excess of 16 mm, said complex (8) having a radial elastic modulus gradient, the lowest elastic modulus being higher than 15MPa |
