Patent ID: 9267276
Filing Date: 2016-02-23
CPC Classification: E03D

Claim Text:
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 configured to generate a large air bubble in the water storing section and supply the large air bubble to the water passing path section, wherein the air bubble supplying section comprises: an air lead-in port for leading air into the water storing section, grows the air led into the water storing section from the air lead-in port into a large bubble shape as time elapses while maintaining a state in which the air lead-in port and the air bubble communicate with each other and, at a stage when the air bubble has a cross sectional area larger than a channel cross sectional area of the jetting port, intermittently supplies the air bubble to the water passing path section as the large air bubble; and further comprises a flow speed changing mechanism for changing a flow speed of a water flow formed in the water storing section so as to alternately and repeatedly generate a first water flow state and a second water flow state, the first water flow state being a state in which a sub-water flow having a relatively low flow speed, which can maintain a state in which the air lead-in port and the air bubble communicate with each other, is formed in the water storing section until the air led in from the air lead-in port is grown to the large air bubble and supplied to the water passing path section, and the second water flow state being a state in which a sub-water flow having a relatively high flow speed, which can separate the air bubble from the air lead-in port when the air led in from the air lead-in port is grown into the large air bubble and supplied to the water passing path section, is formed in the water storing section.