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1. (WO2018185866) MICRO-BUBBLE GENERATING DEVICE AND SHOWER HEAD

Pub. No.:    WO/2018/185866    International Application No.:    PCT/JP2017/014183
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: B01F 5/04
A47K 3/28
E03C 1/084
Applicants: TOSHIN INC.
株式会社Toshin
Inventors: OTOGURO Koichi
乙黒 孝一
Title: MICRO-BUBBLE GENERATING DEVICE AND SHOWER HEAD
Abstract:
[Problem] One purpose of the present invention is to generate micro bubbles that contain a large number of minute air bubbles without the need for a power source or high processing accuracy. In addition, another purpose of the present invention is to provide a micro-bubble generating device that can switch between micro-bubble water that contains micro-bubbles and foam water that contains a large amount of air and has a soft tactile feel. [Solution] The present invention comprises: a water passage (11) having a small-diameter part (R1) and a large-diameter part (R2) that is located downstream of the small-diameter part (R1); an air inflow part (V) that is provided in the large-diameter part (R2); and an elastic body (7) that is disposed in the air inflow part (V) and obstructs communication between the water passage (11) and the outside air. The outside air is sucked into the inside of the water passage (11) from the air inflow part (V) via the elastic body (7) which is compressed by a negative pressure generated in the water passage (11).