| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the color change work in a spray apparatus such as a spray gun or a coating gun for mixing a plurality of kinds of liquid materials such as a mixed reaction setting type material containing a colored liquid material followed by spraying the mixture. SOLUTION: The spray gun is provided with a nozzle 21 at the lower end of a gun body 10. A nozzle assemble body 20 is formed by fitting the upper part of the nozzle 21 to an inside cylinder 22 and spline-connecting an outside cylinder 23 to be movable only in the axial direction of the inside cylinder 22, and the nozzle 21 is provided freely detachably to the gun body 10 by providing a pawl 24 engaged with a recessed part 13a at the lower part of a taper cap 13 in the upper end part of the inside cylinder 22 and a cum for opening and closing the pawl 24 by the relative movement of the outside cylinder 23 to the inside cylinder 22 in the outside cylinder 23 to structure a chuck mechanism. COPYRIGHT: (C)2003,JPO
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