| 摘要 |
PROBLEM TO BE SOLVED: To efficiently improve coil cooling performance without increasing the number of parts in a power tool constituted to wind a tape around a circumferential winding part of a coil. SOLUTION: A housing 3 or a fan guide 7 is provided with a projecting part 7a projecting toward the tape 5, to make the area of a fan passage around the tape winding part low in cooling efficiency, smaller than other parts. Fan air flowing around the tape winding part is thereby decreased, and fan air flowing the other parts is increased. COPYRIGHT: (C)2005,JPO&NCIPI
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