| 摘要 |
PURPOSE:To keep good appearance in addition to be excellent in durability by crossing and overlapping a winding end out of a bead core of a carcass ply, which is uncontinued and acrossed at a tread central area and overlapped, at this central area again. CONSTITUTION:Both carcass plies 14 and 16 are uncontinued at a tread central area, and crossed and overlapped with each other, winding up a bead core 12 toward the outside from the inside, and these winding ends 142 and 162 are crossed ard overlapped again at the tread central area. In addition, a direction of these outermost layer plies 142 and 162 of the carcass plies 14 and 16 should be set to the same direction as the direction of a bladelike lug pattern installed in the bead part from a tire side part. Therefore, good apearance is kept up in addition to be excellent in durability as checking any increase in tire weight to the minimum without hindering the promotion of efficiency in a process. |
