| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress generation of cracks in chafer rubber while maintaining high effects of improving bead durability by a bead reinforcing layer. <P>SOLUTION: A bead part 4 of a tire for heavy load with a bead winding structure comprises the U-shaped bead reinforcing layer 15 composed ofreinforcing cords 15W arranged. In the bead reinforcing layer 15, a clearance Da between the reinforcing cords 15w, 15w in a heal side core lower area Ya is set to 1.5-3.0 times the clearance Db between the reinforcing cords 15w, 15w in a rising area Yb. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
