| 摘要 |
PURPOSE:To certainly bring a metal lath net to a continuity state and to reduce the number of parts, by engaging the pawl part of an earth pole plate with a notch opening part when a filter frame is inserted in a unit frame to bring the same into contact with the metal lath net. CONSTITUTION:When a filter frame 1 is inserted in a unit frame 6, the pawl part A of an earth pole plate 10 is engaged with the notch opening part 5 provided to the filter frame 1 and, simultaneously with the fixing of the filter frame 1 to the unit frame 6, a metal lath net 4 is brought into contact with the pawl part A of the earth pole plate 10. When the main body is operated, the dust in the air sucked from a suction grille 14 is charged to high voltage by an electrode part 9 and collected by the dust collecting filter 2 held to the filter frame 1. The air after the removal of dust is blown out from a blow-out port 16 by the blower device 15 provided in the main body. As mentioned above, by providing the engaging pawl, the contact inferiority due to the backlash of pawl engagement is prevented and continuity inferiority can be reduced and the number of parts are reduced to bring about cost reduction. |
