The orbicular shallow bottom whose depth is shallower than the aforementioned

摘要

PROBLEM TO BE SOLVED: To provide a spray nozzle apparatus of a cleaning sprayer, from which coarse particles can be sprayed at a narrow angle and which is suitable for cleaning the hips.;SOLUTION: This spray nozzle apparatus is provided with a main body 10, a nozzle cap 15 which has a nozzle throat 17 in the center of the tip and is screwed in the screwed part of the tip of the body 10, and a worm member 20 which is positioned in the cap 15 and has a head part 22 for imparting a whirling current to a cleaning liquid jetting from the nozzle 17. A circular central hole 23 with a bottom, a circular shallow-bottomed concave part 24, an end face ring 25 surrounding the part 24, and a plurality of liquid circulating grooves 26 are arranged on the tip surface of the part 22 of the member 20. The hole 23 is communicated with the nozzle 17 and has the prescribed depth. The part 24 surrounds the hole 23 concentrically and has the diameter larger than that of the hole 23 and shallow depth. The ring 25 surrounds the part 24. Each of the grooves 26 has almost the same depth as that of the hole 23, one end opened to the outer peripheral part of the part 22, and the other end communicated tangentially with the hole 23 through the ring 25 and the part 24.;COPYRIGHT: (C)2004,JPO