| 摘要 |
PROBLEM TO BE SOLVED: To provide a powered working machine not being prohibited from sucking air to a centrifugal blower by some of foreign matters such as fallen leaves or waste paper. SOLUTION: In the powered working machine 10 provided with the centrifugal blower 14 and a dust-proofing member 50 provided on the centrifugal blower 14 to cover a suction opening 26 of the centrifugal blower 14 and including an air passing area enabling air to pass into the suction opening 26, an outer surface of the air passing area of the dust-proofing member 50 is projected in a direction separating from the centrifugal blower 14. Since the outer surface of the air passing area of the dust-proofing member 50 is projected to greatly increase the area in comparison with a flat shape, whole air passing area will not be closed even if considerable quantity of foreign matters are adsorbed.
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