| 摘要 |
PROBLEM TO BE SOLVED: To surely ensure the prevention of charge to the end of traveling without damaging the wear resistance or low fuel consumption performance by applying a conductive rubber layer having a specified resistivity value and a prescribed form to a prescribed position of the tread of a pneumatic tire to form a current-carrying path. SOLUTION: A conductive rubber layer 2 is present in the cap layer 1 of a tire tread having a resistivity value of 10<8>Ω.cm or more so as to be circumferentially continued from the tread to a base layer 3. In this rubber layer 2, broad anchors expanded in the tire tread width direction over the middle part are formed on the tread surface side and the base layer side. Such a conductive rubber layer has a center X laid within the range represented by X/4<=X<=3W/4, and the tread surface side maximum width (b) laid along the tread width W direction, the base side maximum width (c) and the width (a) between them in the conductive rubber layer satisfy the relation represented by b/a>=2 and a/c>=2.
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