| 摘要 |
PROBLEM TO BE SOLVED: To enable the supplied amount of cooling air for cooling an induction heating mechanism to be increased, and also simplify configuration and workability by avoiding mutual interference of a supply passage with a supply electric wire. SOLUTION: In this induction heating roller device, a supply electric wire 10 is passed through the internal center of a support rod 8 for supporting an induction heating mechanism 5. In an outer region of a space occupied by the supply electric wire 10 which is inside the support rod 8, a hole 12 for a cooling passage of cooling air or a clearance is provided. The cooling air from the cooling passage is injected to the induction heating mechanism 5. The cooling passage has been provided on the outer region of the space occupied by the supply electric wire 10 so that the cross section of the cooling passage can be larger. Additionally, a cooling pipe can be connected to the cooling passage with no interference with the supply electric wire 10.
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