| 摘要 |
PURPOSE: A wheel of a vacuum cleaner is provided to reduce a vibration and a noise of a cleaner body by supplying a polyurethane cover layer surrounding a wheel body. CONSTITUTION: A wheel of a vacuum cleaner is composed of a wheel body(50) and a polyurethane cover layer(60). The wheel body(50) is provided with a hub portion(52) for inserting rotatably to a rotating shaft. The wheel body is made of a soft material such as an ABS resin or a polypropylen resin. The polyurethane cover layer(60) surrounds an outer surface of the wheel, so that the polyurethane cover layer is contacted with a bottom side when the wheel rotates. The cover layer made of a soft material such as the polyuerthane reduces a noise owing to a rolling contact of bottom side and the wheel.
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