| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning unit which removes a contaminant and can hold the contaminant without discharging them to the surrounding environment. SOLUTION: The cleaning unit 1 comprises a storage chamber 2 defined by an accumulation base 10, a suction device 3 including a suction inlet 6 arranged near the ground, and a filter 12. The suction device 3 is composed of a primary suction means 4 and a secondary suction means 5 on the accumulation base 10, both suction means being arranged to be parallel with each other. The primary suction means 4 controls the suction inlet 6, and the secondary suction means 5 is appropriate for jetting filtered air. The storage chamber 2 includes a separation element 9 which separates a turbulence area 5a in which air is highly turbulent, and a recirculation area 4a in which air has a low turbulence. The recirculation area 4a is connected to the primary suction means 4, and the turbulence area 5a is connected to the secondary suction means 5. COPYRIGHT: (C)2007,JPO&INPIT
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