| 摘要 |
PURPOSE:To enhance the drive comfortability of a vehicle, by arranging steel cord layers and organic fiber cord carcass layers in plural numbers, respectively, and by setting the intervals of cords in carcass layers, in the maximum width area of the tire, more than a value predetermined number times as large as the diameter of the cords. CONSTITUTION:Bell layers 11, 12 composed of steel cords are laid so that they cross each other at a relative small angle such as, for example, about 22 deg, with respect to the tire peripheral direction. Further, at least two carcass layers formed of organic fiber cords made of, for example, polyester cords are laid at angle of abut 90 deg. with respect to the tire peripheral direction, and at least one of them is continuously arranged between bead cores 15. Further, the intervals of cords in these carcass layers 13, 14 are set to be more than a value 2.5 times as large as but less than a value 3.5 times as large as the diameter of the cords. With this arrangement, it is possible to enhance the drive comfortability of a vehicle.
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