PNEUMATIC TIRE AND PLY USED IN THE SAME

摘要

PROBLEM TO BE SOLVED: To improve the durability in an inner linerless structure. SOLUTION: An innermost carcass ply 9A is formed by using a secondary ply F formed by attaching a cover rubber sheet 17 on one face of a joint sheet 16 formed by diagonally cutting a primary ply D formed by coating a cord array with the topping rubber 12, and primarily joining the same J1, and a tire inner cavity face HS is formed by the cover rubber sheet 17. At least an inner part 12i of the topping rubber 12 and the cover rubber sheet 17 are made of a specific low air permeable rubber composition 13.