| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dust collecting device, which readily removes dust stuck on a ceiling surface or stuck on devices fixed on the ceiling surface in a short time without scattering. <P>SOLUTION: The dust collecting apparatus is composed of (a) a dust cover composed of a hollow body having an upper opening, (b) an arm for supporting the dust cover from below, (c) a brush disposed in the dust cover, and (d) an operation shaft for rotating and vertically moving the brush. <P>COPYRIGHT: (C)2004,JPO |
