Pneumatic tire, producing method of pneumatic tire, and forming apparatus of rubber strip winding body

摘要

A pneumatic tire comprises a conductive tread conductive part which is disposed on an inner side of a tread portion, and a tread rubber portion comprising a rubber strip winding body in which a rubber strip is spirally wound and superposed in a circumferential direction. A radially outer surface of the tread rubber portion forms a tread-ground contact surface, and a radially inner surface of the tread rubber portion is in contact with the tread conductive part. At least one surface of the rubber strip is formed with a conductive film made of conductive material. An outer edge of the conductive film appears on the tread-ground contact surface, and an inner edge of the conductive film is in contact with the tread conductive part so that the conductive film forms a conductive path.