| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent bending of a roller body which has an induction heating mechanism arranged in its inside irrespective of the size of the roller body and the induction mechanism. SOLUTION: An induction heating mechanism is equipped inside the roller body which has a free end at the outer end. A front end of the driving axle is contacted and connected to the inner end of the roller body, and the back end side of this driving axel is supported rotatably by the machine board. As the driving axle does not pass inside the roller body, the diameter of the driving axle can be selected without any relation with the diameter of the roller body and the induction heating mechanism. Hence, mechanical strength to the extent such as is capable of preventing bending of the roller body can be given to the driving axle.
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