| 摘要 |
PURPOSE:To improve high load durability and layer adhesive property in a plurality of laminated carcass plies using organic fiber cords for reinforcements different in material and heat resisting performance in rubber. CONSTITUTION:A radial tire comprises a plurality of laminated carcass plies using organic fiber cords for reinforcements which are different from each other in material and heat resisting performance in rubber. For the organic fiber cords of different kinds are preferable used both nylon cord and polyester cord. For example, in the carcass structure having each of three laminated layer wound up from the inside of bead wire BW to the outside, the nylon cord is used for the carcass ply of first layer P1 in the inside direction of tire, while the polyester cord is used for each of carcass plies of second and third layers P2, P3. |
