| 摘要 |
PURPOSE: To provide a tire with a structure which enables the car to travel at a high speed even if the tire punctures and which can be used normally when repaired. CONSTITUTION: A carcass reinforcement structure 30 includes plies 38, 40 having folding-back parts 32, 34 which twin around a bead core 26, the end parts of the folding-back parts being in the vicinity of the position at the maximum sectional width in the radial direction of the tire. A filler 42 is disposed between the ply 38 and a liner 35 and a filler 46 is disposed between the two plies. The bead core has a flat base surface 27 and also first and second surfaces 23, 25 which extend from the base surface to make acute anglesα,β,αbeing larger than or equal toβ. |
