| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner which improves inhaling efficiency without worsening its usability during cleaning or carrying worse. SOLUTION: An electric vacuum cleaner body side's inside diameter D2 of a hose joint 600 which is fixed at an edge of a hose leading to a dust storage in an electric vacuum cleaner body 100 is foamed shorter than the written hose joint side entrance's diameter D3 of a disposable storage bag 800, and the inside diameter of written hose joint 600 is shaped expanding from the hose side to the electric vacuum cleaner body in a specified range. EFFECT:Airflow speed is lowered when air blows from the hose joint 600 into the disposable storage bag 800, therefore, air loss is decreased. And dust is stored evenly in the disposable storage bag 800 above, and it prevent a dust blockage by dust in the storage bag 800 above and improves inhaling efficiency.
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