| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fan for reducing the allowance of the coaxiality of axes passing through the centers of a front plate and a rear plate without reducing the blowing efficiency. Ž<P>SOLUTION: A groove 42a is formed in the root of one of a first connection protrusion 42 of a blade 41 which is inserted through a front connection hole 34 of the front plate 32 and caulked, and a second connection protrusion of the blade 41 which is inserted through a rear connection hole of the rear plate and caulked. Into the groove 42a, a hole edge 34a of the front connection hole 34 or a hole edge of the rear connection hole can be inserted. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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