| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flush tank device capable of certainly preventing the freezing of a drain valve in cold districts and restoring the drain valve to the state before washing a toilet bowl. <P>SOLUTION: The flush tank device which stores washing water for washing a toilet bowl includes: a water storage tank, on the bottom of which a drain port is formed, for storing the washing water; a drain valve including a valve body 72 for opening/closing the drain port and a pipe member 74 connected with the valve body and vertically extending; a control cylinder 78 for supporting the pipe member 74 from the outside and guiding the pipe member 74 to move vertically, and for controlling the operation of the drain valve; and an operation part 46 fixed to the flush tank for retaining the drain valve at a predetermined position. The predetermined position where the drain valve is retained by the operation part 46 is configured to be the position where the top surface of the valve body 72 of the drain valve is not in contact with the control cylinder 78. <P>COPYRIGHT: (C)2012,JPO&INPIT |
