| 摘要 |
PURPOSE: To uniformly jet a jetting fluid in any state by a method wherein a resilient plate having no directional property and a flat surface is provided within a resilient plate-containing part without providing a part so shaped or structured as to have a directional property. CONSTITUTION: An open part in a center part of a cap 13 is fitted over an intermediate part of a push button jetting head support neck part 5 provided with a jet fluid-jetting flow path 19 in a push button jetting head 1. A flange part 11 provided on the upper end of the neck part 5 is fitted into the rear side of the topmost part of the cap 13. A ring sealing material 12 is provided on the lower surface of the flange part 11. For use, the push button jetting head 1 is lowered, a piston 8 is lowered against the force of a coil spring 9 inside a cylinder 10, a hole in the bottom of the cylinder 10 is filled with a ball 16, a pressure in the jet fluid-jetting flow path 19 is raised, and a resilient plate 4 contained in a resilient plate-containing part 7 disposed inward of a jetting port 3 is pressed forward to let a required amount of fluid flow outward from around the resilient plate 4. |
