| 摘要 |
PROBLEM TO BE SOLVED: To form a self-exciting oscillation flow passage in a nozzle body without undercutting using a mold which is simple in structure, to provide a plastic washer nozzle constituted of a small number of components such as the nozzle body and a nozzle incorporated into the nozzle body so as to be simple in structure. SOLUTION: The nozzle body 12 is provided with an action chamber 21 of a predetermined height which is formed by opening gradually wider toward a spherical portion on the back side of a spraying part, and the oscillation flow passage 19 constituted of jet holes 22 which are symmetrically formed on both sides of the action chamber 21 and which open toward the back side of the action chamber 21. A hollow part 18 and each jet hole 22 are connected via a flow passage 23 which vertically uprises from the hollow part 18 through which cleaning fluid flows, and are formed without undercutting. COPYRIGHT: (C)2008,JPO&INPIT |
