Patent ID: 9630218
Date: 2017-04-25
CPC Classifications: B05B,B08B

Claim:
1. An air-flushing method for cleaning a cleaning object by blowing the air to the cleaning object from a nozzle, said method comprising: a control step of controlling, in accordance with two reference values, opening and closing of a valve provided in a flow path through which the air goes to the nozzle, the two reference values including an upper-limit setting value and a lower-limit setting value which is lower than the upper-limit setting value; and an output step of outputting a value indicative of a physical quantity relating to the air, the physical quantity changing in accordance with opening and closing of the valve, wherein in the control step, an OFF signal for closing the valve being outputted to the valve, in a case where the value indicative of the physical quantity outputted in the output step changes from a value lower than the upper-limit setting value to a value equal to or higher than the upper-limit setting value, and wherein in the control step, an ON signal for opening the valve being outputted to the valve, in a case where the value indicative of the physical quantity outputted in the output step changes from a value higher than the lower-limit setting value to a value equal or lower than the lower-limit setting value.