| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve bead part durability by preventing causing separation on the winding end of a carcass ply, and moreover removing the possibility of fatigue failure in the bead part. SOLUTION: A carcass ply 1 is toroidally extended to a bead part 2 from a tread part via a side wall part, and also is wound back to the outer peripheral side from the inner peripheral side around a bead core 3 embedded in each bead part 2, to provide a winding part 4 wound on and along the peripheral surface of the core 3, to arrange one or more wire chafers 7 and 8 in the bead part 2.</p> |
