| 摘要 |
PROBLEM TO BE SOLVED: To improve the molding capability without deteriorating the characteristics of a tire, by installing the tread rubber on a periphery of a tread composed of a rubber composition of low electric conductivity, through a high electrically conductive sheet, extending from a surface to a bottom face of the tread in the width direction, and having a prescribed specific resistance value. SOLUTION: In a tire having the tread rubber of high silica blending, the tread rubber is installed on at least a part of a periphery of the tread composed of the rubber composition of low electric conductivity, through a sheet of high electric conductivity extending from a surface 2 of the tread to a bottom face 3 of it in the width direction, and having not more than 10<6>Ω.cm of specific resistance value. This sheet 1 is preferably intervened on a joint part of the tread, and the width in the peripheral direction of the tire, of the sheet 1 is set within 0.5-50mm. The sheet 1 is used on only a part of the tire tread, so that a lowering of the uniformity of the tire can not be found, and the deterioration of the other characteristics can be prevented.
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