| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method capable of manufacturing without remarkably modifying the manufacturing device of the conventional insulation electric wire concerning the manufacture of a double coating insulation electric wire having insulation coat layer and a self fusing layer on a conductor not exceeding 60μm of a wire diameter. SOLUTION: A rotating drive device having a rotating sheave more speedy than a wire speed of the conductor is provided, and tension of the conductor is relieved by adjusting a contact length between the conductor and the sheave. Thereby tension acted on the extra-fine electric wire can be reduced, and the conductor is not cut in the way even in the manufacture of the extra-fine electric wire. COPYRIGHT: (C)2005,JPO&NCIPI
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