| 摘要 |
PURPOSE:To make cords scatterable almost uniformly at longitudinal direction and width direction in a tensile strength layer, by cutting the cords into equal length per cord bundle of less than twenty cords, and by making the phase difference to peripheral direction of adjacent cord bundles at the time of green tire one-tenth of length of the cord bundle. CONSTITUTION:As at least two layers of carcass layers 4 are mounted to a cylindrical drum for shaping tire, beads 2, 3 are drived into these carcass layer 4. Then after cords 12 are cut into equal length, these cords 12 are arranged under butting cut ends each other per cord bundle 13 of required number of cords, and by rubberizing this a rubberized cord layer is formed. There must be provided phase difference to peripheral direction at the adjacent cord bundle 13, and this phase difference A is made more than one-tenth of the length B of the cords 12. More than two layers of a rubberized cord layer thus formed are mounted on the carcass layer 4, then a tread rubber is mounted on the the rubberized cord layer to form a green tire. At this moment the cords 12 are scattered almost uniformly at longitudinal direction and width direction in a tensile strength layer 11.
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