| 摘要 |
PURPOSE:To improve durability of a bead part, by providing a protective layer on the outside of a reinforcement layer, an end part of a winding up part and a rubber stock under predetermined arrangement corresponding to a height of the top of the reinforcement layer and the end part of the winding up part, in the titled tire having a metallic cord carcass ply. CONSTITUTION:A rubber stock 13 is provided between a main body 11a of a case formed by winding up a carcass ply 11 around a bead core and an end part 11b of a winding up part, a reinforcement layer 14 made of a highly elastic cord is provided outside of the winding up part 11b and a protective layer 20 is provided so as to adjoint to the outside of the reinforcement layer 14 or the end part 11b of the winding up part and a rubber stock 13. In this instance, the protective layer 20 is arranged between the reinforcement layer 14 and the end part 11b of the winding up part as shown in a sketch when a height hf of the top 14b of the reinforcement layer 14 is higher than a height hp of the end part 11b of the winding up part and is arranged so that the protective layer is inside the end part 11b of the winding up part and exceeds the end part 11b when the protective layer 20 is in the reverse relation. With this constitution, durability of a bead is improved and a several times reclaims of a tread is enabled. |
