PURPOSE: To have quick and stable temp. rise of a tire using a simple constitution through utilization of Joule's heat to be generated in a conductor, by embedding the conductor under the grounding surface of the tire, and by arranging a high frequency generating source in proximity to the grounding surface.
CONSTITUTION: In a tire temp. rising device 11, a conductor 14 is embedded in a rubber member under the grounding surface 13a of a tire 13, and a high frequency generating source 10 is equipped in proximity to the grounding surface 13a. At the time of service, high frequency energy 10A is generated from the mentioned high frequency source 10 simultaneously with commencement of tire revolutions. This high frequency energy 10A is transmitted to the conductor 14 through the grounding surface 13a of the tire 13, and eddy current 14A is generated on the skin layer 14a of the conductor 14 by means of skin effect. Thereby Joule's heat is generated in the conductor 14 through utilization of this eddy current 14A and the resistance of the conductor 14, and the surface temp. of the tire 13 is raised.
FUKUNAGA YUKIO
TAMAMASA TADATSUGU
