| 摘要 |
PROBLEM TO BE SOLVED: To provide a grill assembly for a cyclone dust collecting device for a vacuum cleaner capable of more effectively preventing a back flow of dirt. SOLUTION: In the grill assembly forming a whirl air flow from sucked air to prevent the the back flow of the dirt by being located in an inlet of an air discharge pipe of a cyclone body for separating the dirt from the whirl air flow with a centrifugal force, the grill assembly includes a grill body; a plurality of ducts formed in the grill body; and a dirt separating member located in the lower part of the grill body for returning the dust contained in a rising air current toward the grill body to change the advancing direction of the dirt to the whirl air flow, and the dirt separating member is equipped with a conical first member of which the diameter is enlarged toward the lower part; and a cylindrical second member extending from the conical first member downwards by a predetermined length. COPYRIGHT: (C)2004,JPO
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