| 摘要 |
PROBLEM TO BE SOLVED: To remove efficiently dust of a small particle size stuck to an assembly body by a method wherein air of a specific pressure is intermittently jetted to the assembly body from an air nozzle, and dust flying up in the air from the assembly body by the air-jetting is sucked. SOLUTION: An air jetting means 5 is fixed above a dust removal chamber 4, six lines of air nozzles 15 as one set for four nozzles, are provided to the air jetting means 5, and air of a higher pressure than a positive pressure is jetted to an assembly body 2 from those air nozzles 15. Dust stuck to a surface of the assembly body 2 is allowed to fly up in the air by the jetting, and a large dust of at least 20μm in particle size having been allowed to fly up is removed through a suction duct 11 by a sucking means 6. Then, the dust included in the removed air is removed by an attracting electrostatic filter 6B, and the clean air is discharged to the outside.
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