| 摘要 |
PURPOSE: A spray gun and coating system is provided to prevent contamination of leading end of the gun by sprayed paint. CONSTITUTION: A spray gun comprises bodies(20,30) and a switch valve(40). The body comprises a paint flow path(21), a paint discharge hole(21b), and an air passage(22). The paint flow path is extended towards the paint flow path from a paint entrance. The body comprises a paint inlet(21c) installed in opposite side from the paint discharge hole. The body comprises an opening concave part in which the paint discharge hole and air channel are opened. The paint discharge hole is installed in a side of the paint flow path. In the air passage, compressed air supplies the paint discharged from the paint discharge hole.
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