Patent ID: 9597695
Date: 2017-03-21
CPC Classifications: B05B,B05D,H02B

Claim:
1. An electrostatic coating apparatus comprising: a coating gun that sprays a coating material toward a coated matter; a high-voltage application apparatus that includes a bell-side current calculation unit and that applies a high voltage to the coating gun, the bell-side current calculation unit calculating a bell-side current flowing from the coating gun to the coated matter; an earth-side current measurement unit that measures an earth-side current flowing from the coated matter to the earth; and an earth check unit that detects an abnormal earth state of the coated matter, depending on a magnitude relation between the bell-side current calculated at the time of electrostatic coating and the bell-side current when the earth is properly connected, and a magnitude relation between the earth-side current measured at the time of the electrostatic coating and the earth-side current when the earth is properly connected.