| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiblade fan manufactured by manufacturing blades one by one and fixing them to upper and lower plates (power transmission plates) and capable of connecting blades firmly and mutually by utilizing bonding strength of the upper plate and the lower plate for a cylindrical body effectively. SOLUTION: A connection part 61a for bringing upper and lower end plate parts 21, 21, 21, 21 of adjacent blade constituent plates 1 close to a required interval and connecting them mutually rises to form a rising end 61, and the upper plate 3 and the lower plate are tightened and fixed to the rising end 61 to double connection strength of the connection part 61a. COPYRIGHT: (C)2005,JPO&NCIPI
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