| 摘要 |
PURPOSE:To improve comfortableness to drive, stability of operation and resistance to rolling by configuring a tire from a narrow belt layer and reinforcement layers on both sides so as to reduce radial rigidity. CONSTITUTION:Breadth BW of a belt layer 5 is set to about 90-140% of grounding breadth TW, which is set to 50-58% of the maximum breadth SW. Reinforcement layers 7 are provided on both sides of the belt 5 so as to overlap it partly. Fiber cords of the layers 7 are set to 30-80 deg.C, preferably to about 45-60 deg., with the peripheral direction. Therefore lateral deformation is constrained and stability of operation is improved, while longitudinal deformation of the tire is allowed. |
