| 摘要 |
PURPOSE: To prevent the contamination of an interface by a sprayed material by providing the sprayer device with the rotatable member and providing the rotatable member with a detergent nozzle. CONSTITUTION: The detergent nozzle 28 is fixed to a support casing 12 and is directed to a surface 16 in such a manner that an incident angle a1 increases. When a detergent is injected at a sufficiently high velocity in the state of at about 20 deg. of the incident angle, the nozzle 28 exists in immediate proximity to the rear of the surface of a projecting surface shape and the detergent moves forward along the external surface 16. Part of the detergent stains on the surface 16. Then, the S1 part of the surface 16 is directly washed by the washing liquid from the nozzle 28. As a result, the device may be made inexpensive. |
