Patent ID: 7798189
Filing Date: 2010-09-21
Classification: B60C,Y10T

Abstract:
1. A radial tire for airplane comprising a pair of bead cores, a radial carcass comprised of at least one carcass ply toroidally extending between the pair of bead cores, and a belt disposed on an outer periphery of a crown portion of the radial carcass and comprised of plural belt layers each containing organic fiber cords, in which a total strength in a circumferential direction over a full width of the belt T belt satisfies T belt , N/WD≧1.5×10 6 when an outer diameter of the tire is D, m and a width of the tire is W, m, and at least one layer of the belt layers is constituted with an organic fiber cord extending zigzag in the circumferential direction and satisfying the following equations I and II: wherein σ is a heat shrinkage stress at 177° C., cN/dtex and E is an elastic modulus at 25° C. under a load of 49 N, cN/dtex.