Patent ID: 8904574
Filing Date: 2014-12-09
Classification: E03D

Abstract:
1. A water discharge device that discharges water to a human body, the water discharge device comprising: a water supply path for supplying the water; a jetting port for jetting the water, which is supplied from the water supply path, to a downstream side as a jet flow; a discharge channel provided on the downstream side of the jetting port and including a discharge port for discharging the jet flow to the outside; a water storage chamber provided between the jetting port and the discharge channel and including a water passing path section, which is a path through which the jet flow passes from the jetting port to the discharge channel, and a water storing section for forming stored water to be adjacent to the water passing path section; and an air bubble supplying section including an air lead-in port for leading the air into the water storing section and configured to generate an air bubble, which is formed by changing the air in a bubble form in the water storing section, and configured to supply the air bubble to the water passing path section, wherein the air bubble supplying section is configured to grow the air bubble to generate a large air bubble having a cross sectional area larger than a channel sectional area of the jetting port, and supplies the large air bubble to the water passing path section, the air bubble supplying section intermittently supplies the large air bubble to the water passing path section to alternately and repeatedly generate a first water passing state in which the jet flow pierces through the large air bubble by supplying the air bubble and a second water passing state in which the jet flow passes through the stored water by not supplying the air bubble in the process in which it is grown to generate the large air bubble, and varies water passing resistance of the jet flow in the water passing path section, wherein the air bubble supplying section includes a sub-water flow lead-in port formed separately and independently from the jetting port whereby a water flow is led into the water storing section from the sub-water flow lead-in port, wherein the speed of the water flow led into the water storing section from the sub-water flow lead-in port is lower than the speed of the jet flow led into the water storing section from the jetting port.