| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating coil for uniformizing the heat treatment of a metal member having helical recessed or protruded portions in inclination to the axial and outer peripheral directions, and to provide an induction heating device.SOLUTION: The heating coil 30 includes a first conductor part 31 to be coaxially arranged outside a work 20 on the outer peripheral face of which teeth 22 are formed helically extending in inclination to the axial and peripheral directions, and opposed to the front side of the work 20, the first conductor part 31 helically extending to be substantially perpendicular to a tooth line 22a, a second conductor part 32 to be opposed to the rear side of the work 20, the second conductor part 32 helically extending to be substantially perpendicular to the tooth line 22a, a third conductor part 33 connected to an end 31a of the first conductor part 31 and to an end 32a of the second conductor part 32, and a fourth conductor part 34 connected to an end 31b of the first conductor 31 and to an end 32b of the second conductor part 32. |
