Dust remover

Abstract

A dust remover which comprises a power supply and an electrode applied with voltage by said power supply. The dust attached to the object of dust removal is removed therefrom by bringing the electrode into contact with the object of dust removal or approaching toward the object of dust removal. The object of dust removal is a conductor and/or an insulator. The voltage applied to said electrode is a pulsed voltage of plus and minus or an AC voltage of plus and minus. Or the voltage is a DC voltage having the same polarity with that of electricity with which the dust is charged, or the voltage is a DC voltage having an opposite polarity to that of electricity with which the dust is charged. The object of dust removal includes at least a ball for “Pachinko”, a car body, a printed board, a metal box or a part thereof, a frame for glasses, a plastic lens, a plastic box or a part thereof, a fiber, a wood, a paper box or a part thereof.

1 . A dust remover which comprises a power supply and an electrode applied with voltage by said power supply, in which the dust attached to the object of dust removal is removed therefrom by bringing said electrode into contact with the object of dust removal or approaching toward the object of dust removal. 
   
   
       2 . A dust removal according to  claim 1  in which said object of dust removal is a conductor and/or an insulator. 
   
   
       3 . A dust removal according to  claim 1  in which the voltage applied to said electrode is a pulsed voltage of plus and minus or an AC voltage of plus and minus, and in case that the dust is flied away the voltage is a DC voltage having the same polarity with that of electricity with which the dust is charged, and in case that the dust is pulled away the voltage is a DC voltage having an opposite polarity to that of electricity with which the dust is charged. 
   
   
       4 . A dust remover according to  claim 1  in which the object of dust removal includes at least a ball for “Pachinko”, a car body, a printed board, a metal box or a part thereof, frame for glasses, a plastic lens, a plastic box or a part thereof, a fiber, a wood, a paper box or a part thereof. 
   
   
       5 . A dust removal according to  claim 1  which comprises an air blower or a suction device for transferring the dust detached from the object of dust removal or for aiding to the detachment of the dust from the object of dust removal and transferring the dust thus detached from the object of dust removal. 
   
   
       6 . A dust remover according to  claim 1  in which the object of dust removal is electrically isolated from its environment when the object of dust removal is applied with voltage. 
   
   
       7 . A dust remover for a ball for use in “Pachinko” game or for a coin for use in a game machine which comprises
 an entrance gate for introducing a ball or a coin,   an electrode disposed so that the introduced ball or coin is brought into contact with or approached the electrode, said electrode being electrically isolated from the other parts and applied with the voltage to remove the dust,   a discharge gate for discharging the ball or coin,   a first isolator for separating the ball or coin on or adjacent said electrode from the balls or coin in the entrance gate and transferring the separated ball or coin toward said electrode,   a second isolator for separating the ball or coin in the discharge gate from the balls or coins on or adjacent said electrode and transferring the ball or coin toward said discharge gate.   
   
   
       8 . A dust remover according to  claim 7  which comprises at least one grounded electrode provided before and/or after said electrode to statically eliminate the ball or coin. 
   
   
       9 . A dust remover according to  claim 7  in which said electrode is an electrode mesh, and which comprises at least a suction fan, a discharge fan or an air blower to remove the dust electrically detached by said electrode mesh. 
   
   
       10 . A dust remover according to  claim 9  in which to prevent scattering of the dust departed from the object of dust removal to the outside and to prevent the invasion of the dust from the outside and the attachment to the ball or coin, assuming that the quantity of intake air of said suction fan is Vin, the quantity of discharge air of said discharge fan is Vout, the quantity of air blow is Vair, and the quantity of air leaked from the inlet and outlet for balls is Vleak, an inner air pressure distribution is controlled so that the following formula consists
     V leak= V in+ V air− V out     Vleak≧0   
   
   
       11 . A dust remover which comprises
 a dust repelling electrode which is disposed in contact with or adjacent the object of dust removal and fed by a power supply, and   an ionizer for issuing ions toward the circumference of the object of dust removal.   
   
   
       12 . A dust remover which comprises
 a dust repelling electrode which is disposed in contact with or adjacent the object of dust removal and fed by a power supply, and   a dust attracting opposite electrode disposed on the opposite side of said dust repelling electrode and separated therefrom.   
   
   
       13 . A dust remover according to  claim 12  in which said dust attracting opposite electrode is grounded or is applied with the voltage of polarity opposite to that of said dust repelling electrode. 
   
   
       14 . A dust remover according to  claim 13  which comprises a dust suction fan disposed on the opposite side of said dust attracting opposite electrode from the object of dust removal. 
   
   
       15 . A dust remover according to  claim 12  in which said dust repelling electrode and/or said dust attracting opposite electrode includes at least one electrode of needle shape, point shape, rod shape, mesh shape, plate-like shape, or ring shape. 
   
   
       16 . A dust remover which comprises
 electrode means for departing the dust from the object of dust removal and   a dust suction vacuum device for sucking the departed dust in   said electrode means comprising   a dust attracting electrode for attracting the dust, or   a dust attracting electrode for attracting the dust and a dust repelling electrode for flying and floating the dust from the object of dust removal, or   a dust repelling electrode for flying and floating the dust from the object of dust removal.   
   
   
       17 . A dust remover according to  claim 16  in which said dust suction vacuum device and said dust attracting electrode are disposed on the same side. 
   
   
       18 . A dust remover according to  claim 16  in which said dust suction vacuum device and said dust repelling electrode are disposed on the opposite sides from the object of dust removal. 
   
   
       19 . A dust remover according to  claim 16  in which said dust suction vacuum device and said dust attracting opposite electrode are disposed on the same side, and said dust attracting electrode and said dust repelling electrode are disposed on the opposite sides of the object of dust removal. 
   
   
       20 . A dust remover according to  claim 19  in which the voltage applied to said dust attracting opposite electrode is of the opposite polarity as that of the dust repelling electrode or is grounded. 
   
   
       21 . A dust remover which comprises
 electrode means for departing the dust from the object of dust removal and   an air blower for flying the dust away   said electrode means comprising   a dust attracting electrode for attracting the dust, or   a dust attracting electrode for attracting the dust and a dust repelling electrode for flying and floating the dust from the object of dust removal, or   a dust repelling electrode for flying and floating the dust from the object of dust removal.   
   
   
       22 . A dust remover according to  claim 21  in which said air blower and said dust attracting electrode are disposed on the same side. 
   
   
       23 . A dust remover according to  claim 21  in which said air blower and said dust attracting electrode are disposed on the opposite sides of the object of dust removal. 
   
   
       24 . A dust remover according to  claim 21  in which said air blower and said dust attracting opposite electrode are disposed on the same side, and said dust attracting electrode and said dust repelling electrode are disposed on the opposite sides of the object of dust removal. 
   
   
       25 . A dust remover according to  claim 24  in which the voltage applied to said dust attracting opposite electrode is of the opposite polarity as that of the dust repelling electrode or is grounded. 
   
   
       26 . A dust remover which comprises
 a dust flying-away fan and/or air blower disposed in an upper stream,   a dust repelling electrode disposed in a downstream from the fan and/or blower,   a dust attracting electrode disposed in a further downstream from the object of dust removal, and   a dust suction fan at the end of the stream.   
   
   
       27 . A dust remover according to  claim 26  in which the voltage applied to said dust attracting opposite electrode is of the opposite polarity as that of the dust repelling electrode or is grounded.