| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a screw type aerator which prevents the entanglement of the hair, etc., with a hollow shaft by changing the water stream entering the spacing between a cover and the hollow shaft. SOLUTION: The opening surface at the front end of the cover 2 of the screw type aerator having the hollow shaft 1 rotated by an electric motor 3, etc., the vanes of a screw 4 mounted at the outer peripheral surface of the front end of the hollow shaft 1 and a cover 2 having a pipe shape covering the outer periphery of the hollow shaft 1 is so formed as to be approximately perpendicular the axial center of the hollow shaft 1.</p> |
