| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To save water. <P>SOLUTION: A washing tank device Ta is provided with a drain valve 12 on an upstream end of a drain channel 16 for discharging washing water W in a washing tank 10 to the side of a toilet bowl 15, and when the drain valve 12 is opened, a part of the washing water W flow from the drain channel 16 through a water channel 22A to a water storage part 21A by a water head in the washing tank 10. Residual means 30A makes the washing water W which has flown into the water storage part 21A remain in the state that the washing water W in the washing tank 10 is discharged to the side of the toilet bowl 15 and the drain valve 12 is closed, and discharges the washing water W in the water storage part 21A to the side of the drain channel 16 after the drain valve 12 is closed. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
