| 摘要 |
PROBLEM TO BE SOLVED: To provide an aircraft radial tire having a high durability. SOLUTION: A ply width of a zigzag endless belt ply 51A is set as a width W1 and a first chord part 52A is crossed with a tire equatorial plane E at an angleθ1. A ply width W2 of a zigzag endless belt ply 51B is set to be a width W2 that is narrower than the ply width W1. The second chord part 52B is crossed with the tire equatorial plane E at an angleθ2 that is lower than the angleθ1. A middle chord part 52C is arranged near a ply changing-over part between the zigzag endless belt plies 51A and 51B and is wound around the tire at least by one turn. A ply width at a portion constituted by the middle chord part 52C is set as a width WM, and the middle chord part 52C is crossed with the tire equatorial plane E at an angleθM. The angleθM is set to have a relation ofθ1>θM>θ2 and the width WM is set to have a relation of W1>WM>W2. COPYRIGHT: (C)2007,JPO&INPIT |
