NOZZLE FOR SPRAYING CHEMICAL AND SPRAY

PROBLEM TO BE SOLVED: To provide a nozzle for spraying chemicals capable of suitably spraying a liquid widely and linearly in the case of a direct spray, and neatly and simply switching the direct spray to/from wide angle spray. SOLUTION: The nozzle for spraying a chemical has an air suction port 35 provided to nearer side of a jetting port 43 than a part where a vortex flow forming means 13 can be movable back and forth, an orifice part 30 through which the liquid is passed to introduce air to a flow passage from the air suction port by the produced negative pressure, a housing chamber 28 in which the vortex flow forming means provided with a vortex flow groove 18 is inserted to have a gap between the outer peripheral surface and the housing chamber 28, a vortex flow producing chamber 20 which is provided nearer the jetting port than the housing chamber and in which the vortex flow forming means is inserted to be brought into contact with the inner wall surface and a back and forth moving means for moving the vortex flow forming means back and forth. COPYRIGHT: (C)2006,JPO&NCIPI