| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust collector which achieves adequate operation of a valve and a motor for driving it such as securing of an adequate closed state by the valve by precisely controlling a position of the valve (a closing member) for eliminating dust.SOLUTION: A dust collector 1 includes filters (a prefilter 20 and filters 23, 22), a tank 3 which covers the filters, and a fan F for introducing outside air to the tank 3, and collects dust by ventilating the filters in a normal flow direction. The dust collector 1 includes a first opening/closing member 55 for ventilating the filters in a reverse flow direction, and a DC motor 36 for driving the first opening/closing member 55. |
