| 摘要 |
PROBLEM TO BE SOLVED: To effectively and surely remove dust stuck on a sheet body and also to simplify the structure of a dust collector and to enable easily installing it in a narrow space. SOLUTION: A dust removal head 2 has jetting nozzle 5 installed between an upstream side dust suction port 3 and a downstream side dust suction port 4 and also for jetting ultrasonic air. The jetting nozzle 5 is formed inclined to the downstream side. A pair of the dust removal heads 2 are used, and on both sides of a long-length sheet body 1, the dust suction ports 3, 3; 4, 4 and the jetting nozzles 5, 5 are arranged so that they are made symmetrical with respect to the long-length sheet body 1. |
