| 摘要 |
PROBLEM TO BE SOLVED: To reduce rolling resistance by suppressing an increase of tire deformation and an increase of tire weight, while suppressing lowering of other performance by reducing the rolling resistance. SOLUTION: In this pneumatic tire 1, at least two layers of belt layers 71 and 72 are arranged at the tire radial direction outside of a carcass layer 6. The belt layers 71 and 72 are constituted by laminating a wide belt layer set to a tire width direction dimension BLW of≥90[%] and≤115[%] in relation to a tire grounding width TW and a narrow belt layer set to a tire width direction dimension BSW of≥50[%] and≤90[%] in relation to the wide belt layer. A cord reinforcing layer 8 having at least a part held between the wide belt layer and the narrow belt layer is provided on at least one side of end parts of the tire width direction of the belt layers 71 and 72. COPYRIGHT: (C)2011,JPO&INPIT |
