| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of improving durability in high-speed traveling and ride comfort, while maintaining driving stability in high-speed traveling well, under a condition wherein a large negative camber is set. SOLUTION: A reinforcing rubber layer 2B is embedded between a rim cushion rubber layer 3A, a side rubber layer 2A and a carcass layer 4. The hardness of a rubber composition, which structures the reinforcing rubber layer 2B, at 20°C is set to be higher than the hardness of a rubber composition, which structures the side rubber layer 2A, at 20°C, and the hardness of a rubber composition, which structures a reinforcing rubber layer 2Bo arranged outside a vehicle in installation in the vehicle, at 20°C is set to be higher than the hardness of a rubber composition, which structures a reinforcing rubber layer 2Bi arranged inside the vehicle in installation in the vehicle, at 20°C. COPYRIGHT: (C)2010,JPO&INPIT |
