| 摘要 |
PROBLEM TO BE SOLVED: To provide an impeller for a lightweight air blower equipped with a vibration control member having high recyclability, high productivity, and excellent vibration control performance without using a metal member. SOLUTION: The impeller for the air blower is equipped with an impeller main body 1 having vane parts 3a, 3b, 3c and a hub part 2, and a boss member 6 for vibration controlling which has a fitting hole 5 with a motor driving shaft, and is integrally provided with the hub 2 of the impeller main body 1. The boss member 6 is constituted by an inner-outer double structure sleeve members 61, 62 consisting of predetermined hard synthetic resin material respectively and a vibration absorbing member 63 consisting of predetermined soft synthetic resin material integrally interposed between the inner-outer double structure sleeve members 61, 62. The boss member 6 is integrally insert-molded through the outer side sleeve member 62 with respect to the hub part 2 of the impeller main body 1, and the vibration isolating performance more than equivalent can be obtained without causing problems such as low productivity, increase of weight, and deterioration of recyclability, etc., as in the case of the boss member where a conventional metal sleeve is combined with vulcanized rubber. COPYRIGHT: (C)2004,JPO
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