| 摘要 |
<p>A method of driving an automatic on-off valve (14) for a water passageway, the automatic on-off valve (14) including an electromagnetic valve (16) for opening and closing the water passageway, a sensor unit (46) for detecting an object such as a man or a human hand and a control unit (46) for controlling supply/cut-off of driving electric power supplied from a power supply (50) to the electromagnetic valve (16) in response to a signal ttrransmitted from the sensor unit (44), the method comprising the steps of: permitting the control unit (46) to control an operation of the electromagnetic valve (16) in a normal state; manually supplying the electromagnetic valve (16) with the driving power given from a manual driving unit (52) connected to the electromagnetic valve (16); and thus forcibly driving the electromagnetic valve (16).</p> |
