| 摘要 |
<p>PURPOSE:To prevent a dust collecting sheet from sliding in an axial direction and from turning out to be impossible to take-up due to a difference of take-up diameter at both end parts of a take up roll in accordance with a progress of a take-up of the dust collecting sheet in an air purifier using the dust collecting sheet. CONSTITUTION:An air flow passage 12 is provided in a main body casing 11. In this air flow passage 12, an ionizing ray 13a, a counter electrode 14 and a dust collecting zone 15 are provided at an air inlet side 11a, and on the other hand, a fan 22 is provided at an air outlet 11b side. In the dust collecting zone 15, a feed roll 16 and a take-up roll 17 are provided orthogonally to the air flow and in parallel, and the dust collecting sheet 18 is engaged between the feed roll 16 and the take-up roll 17. Then, the dust collecting sheet 18 is moved in a same direction with the air flow to wrap to the take-up roll 17.</p> |
