| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire in which electro static charge performance can be improved.SOLUTION: A pneumatic tire 1 comprises: a belt cover 143 which is formed by covering a belt cord 1431 consisting of an organic fiber material with a coat rubber 1432 having a volume resistivity of 1×10^8 &OHgr; cm or higher, and arranged outside of a pair of crossover belts 141, 142 in a tire radial direction; a tread rubber 15 having a volume resistivity of 1×10^8 &OHgr; cm or higher and arranged outside of the belt cover 143 in the tire radial direction; and a pair of side wall rubbers 16, 16 respectively arranged outside of a carcass layer 13 in the tire radial direction. The pneumatic tire 1 comprises: an earth tread 51 with a volume resistivity less than 1×10^8 &OHgr; cm which is buried in the tread rubber 15 and exposed on the tire ground contact surface; and a conductive part 52 which establishes electrical conduction between an inner peripheral surface and an outer peripheral surface of the belt cover 143.SELECTED DRAWING: Figure 3 |
