| 摘要 |
The purpose of the present invention is to provide a spray gun in which the flow rate of a pattern adjusting gas is changed even without operating a pattern adjusting knob when a liquid is applied within a small or large application range. This spray gun is provided with: a main body part having a liquid spray nozzle having a liquid spray hole; a gas flow passage which communicates with an atomized gas supply passage and a pattern adjusting gas supply passage to thereby supply gas; a needle having a gas valve that opens/closes the gas passage and a tip section for adjusting the opened degree of the liquid spray hole; a trigger for operating the needle; a pattern adjusting piston for adjusting the opened degree of the pattern adjusting gas supply passage; a driving gas flow passage through which gas for driving the pattern adjusting piston is supplied; and a three-way valve having a gas outlet connected to the driving gas flow passage. The three-way valve operates in connection with the operation of the trigger such that when a switching part is pressed, a gas supply port and a gas outlet port are connected, and when the switching part is not pressed, the gas outlet port and an exhaust port are connected. |
