| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner reducing noise of high frequency without fluid loss. SOLUTION: The vacuum cleaner includes an electric blower 28 and a dust collector 2 arranged to form a flow passage by means of an intake duct 27 disposed above the electric blower 28. A flat surface is provided on the intake duct 27 in a width direction of a cross-section of a flow passage. COPYRIGHT: (C)2011,JPO&INPIT |
