| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide means capable of discharging hot water from a bathtub without providing an electric controller or a mechanical structure assumed to be electrically driven on a drain valve itself. <P>SOLUTION: In the middle of a flow path from bath going piping 43 to a bathtub 3, an on-off valve 93 for discharge is provided. The on-off valve 93 for discharge is a three-way valve capable of alternatively switching to one of a first state of opening a flow path communicating the side of the bath going piping 43 and the side of the bathtub 3 and closing a flow path to the side of a discharge path 95 and a second state of opening a flow path communicating the side of the bath going piping 43 and the side of the discharge path 95 and closing a flow path to the side of the bathtub 3. When the hot water inside the bathtub 3 is to be discharged, the on-off valve 93 for discharge is turned to the second state in order to discharge water which has passed through a circulation flow path and returned to the front of the bathtub 3 from the discharge path 95. The water discharged from the discharge path 95 is tentatively discharged to a bathtub pan 97 and flows into a discharge port 99 provided on the bathtub pan 97. <P>COPYRIGHT: (C)2012,JPO&INPIT |
