| 摘要 |
Disclosed is a spray gun including: a body 1 having a gun barrel, a coating material nozzle 30 disposed on a tip end side of the gun barrel; and an air cap 16 disposed on the tip end side of the gun barrel to surround a tip end portion 31 of the coating material nozzle, wherein the tip end portion 31 of the coating material nozzle has on the tip end surface thereof a guide wall 32A spreading and also has on the outer peripheral surface thereof a plurality of air grooves 15 in a V shape channeled in a longitudinal direction, and wherein each of the air grooves has a bottom portion b gradually increasing in depth in the longitudinal direction, the bottom portion having a curvature radius R of 0.15 mm or less. |
