| 摘要 |
PROBLEM TO BE SOLVED: To simplify the structure of the dust eliminator and to set it even in a small space in the dust eliminator for removing dust depositing on a large- sized sheet. SOLUTION: This dust eliminator is provided with a couple of dust collecting heads 2. The head 2 has a dust suction port 3 on the upstream side, a dust suction port 4 on the downstream side and an injection nozzle 5 furnished between the suction port 3 and the suction port 4 and injecting an ultrasonic air E. The couple of dust collecting heads 2 are provided on both face sides of a large-sized sheet 1 so that the suction ports 3 and 4 are symmetrical about the nozzles 5. The nozzles 5 are inclined to the downstream side in respect to the sheet 1 when seen from the side. |
