| 摘要 |
<p>An upright vacuum cleaner which includes a housing for accommodating a power-driven fan (22) and a dust chamber (29), a suction head (30) having a rotary brush (31) for agitating dust on floors, the suction head being connected to the housing (21) so as to enable the extracted dust to enter the dust chamber, means (33) for transmitting the rotation of the fan (22) to the rotary brush (31), a dust detecting means, and a control means for controlling the rotation of the fan. <IMAGE></p> |
