| 摘要 |
Water (200) is jetted from a jetting port (13) provided on the end of an intra-nozzle water channel (12). A plate spring (14) in which a plate spring (first restricting member) (14A) and a plate spring (second restricting member) (14B) are united is mounted on a nozzle base (11). At the edge of the upper plate spring (14A) on both sides of the jetting direction (I) of the water (200), projections (14E, 14F) that protrude downward are respectively formed. By the projections (14E, 14F) coming in contact with the lower plate spring (14B), a gap of an interval (D) is formed between the projection (14E) and the projection (14F) and between the plate spring (14A) and the plate spring (14B). Because said gap is formed regardless of the pressure of the water (200) jetted from the jetting port (13), water (200) is jetted from said gap even when water pressure is low. Consequently, it is possible to stably perform operations to increase jetting angle, etc. even when water (liquid) pressure is low. |
