| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic faucet having a simple configuration and capable of executing changeover of a flow rate and improving comfortability.SOLUTION: In an automatic faucet, a first electromagnetic valve 21 and a second electromagnetic valve 22 which are switched by signals from a first sensor 17 and a second sensor 18 sensing a human hand or the like, respectively, are provided on a water supply passage 16 and on a main water supply passage 16a, respectively, and a throttle valve 23 is connected to a bypass channel 16b of a constant flow. Namely, both the electromagnetic valves 21, 22 are connected in series and the throttle valve 23 is connected in parallel with the second electromagnetic valve 22 on the downstream side. Then, the automatic faucet is constituted such that the throttle valve 23 is opened to discharge water at a small flow rate when the second sensor 18 does not sense a human hand or the like. |
