| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic faucet device using a radio wave sensor, which can realize appropriate detection range in a water cutoff and a water discharge with a simple structure. <P>SOLUTION: An automatic faucet device includes a faucet body, a water pipe 20, a radio wave sensor, and a controller for discharging and cutting off washing water. And the automatic faucet device includes; a radio wave passing space through which radio wave pass; a radio wave radiation port 27; and a directivity determination means for determining a directivity of radio wave emitted from the radio wave radiation port 27. The directivity determination means is configured to direct, in the water cutoff, the radio wave emitted from the radio wave radiation port 27 along with a water discharge direction A of the washing water discharged from a water discharge port 26, and to direct, in the water discharge, the radio wave so as to continuously interfere with a stream of the washing water discharged from the water discharge port 26 along with the water discharge direction A. In the water discharge, a water discharge port part is configured so that the radio wave emitted from the radio wave radiation port 27 interferes with at least both the lateral side faces of the stream. <P>COPYRIGHT: (C)2012,JPO&INPIT |
