| 摘要 |
<p>A radial tire for airplane comprises a pair of bead cores (3), a radial carcass (4), and a belt (7) disposed on an outer periphery of a crown portion of the radial carcass (4) and comprised of plural belt layers (6) each containing organic fiber cords, in which a total strength in a circumferential direction over a full width of the belt T belt (N) satisfies T belt /WD ‰¥ 1.5x10 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 (6) is constituted with an organic fiber cord spirally winding at an angle of approximately 0° with respect an equatorial plane of the tire and satisfying the following equations (I) and (II):
à ‰¥ -0.01E + 1.2 .... (I)
à ‰¥ 0.02 .... (II)
(wherein à 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)).</p> |
