| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wash water tank device capable of obtaining multiple stages of the quantity of wash water of at least 3 stages including a large quantity of flushing, a small quantity of flushing, and a smaller quantity of flushing in a simple structure. <P>SOLUTION: The wash water tank device (18) for storing wash water for washing a toilet bowl (1) includes: a water storage tank (22) having a drain outlet (22a) on the bottom thereof, for storing wash water; a drain valve (72) for opening/closing a drain outlet (22a) and supplying wash water to a water toilet bowl; a cylindrical body (76) having a side surface (76b) extending from the bottom of the water storage tank so as to surround the drain outlet, the cylindrical body being upwardly opened and having an opening portion (76c) in the side surface; selector valves (90, 92) for opening/closing the opening portion of the cylindrical body so as to allow the sectional area of the opening portion of the cylindrical body to be adjusted in such a way that the quantity of wash water supplied from the drain outlet of the water storage tank to the water toilet bowl can be obtained in multiple stages of at least 3 stages including large, medium, and small quantities. <P>COPYRIGHT: (C)2012,JPO&INPIT |
