| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tire which absorbs an interlaminar shear distortion in a belt reinforcing layer and a belt layer with interlaminar rubber and enhances the durable capacity. <P>SOLUTION: In this pneumatic tire, respective side edges of belt reinforcing layers 2 and 3, and belt layers 4 and 5 are positioned outside in a tread crosswise direction from a forming position of respective shoulder peripheral grooves 7 positioned closest onto the tread shoulder side, also the belt layer 4 adjacent to the peripheral side of the belt reinforcing layer 3 is formed as a belt layer wider than the belt reinforcing layers 2 and 3, and the belt layer 5, and interlaminar rubber 11 having a thickness increasing gradually toward the side edge side of the belt reinforcing layer in the tread crosswise direction is arranged between a side part portion 3a of the belt reinforcing layer 3 and the wide belt layer 4. The interlaminar rubber 11 is composed of rubber materials of two types or more having a different modulus, and rubber materials 11a in a contact area with the side part portion 3a of the belt reinforcing layer 3 of the interlaminar rubber 11 are rubber materials having a greater modulus than rubber materials 11b forming the balance of the interlaminar rubber 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
