To reduce time for washing nozzles to move back to the originally initial position after the completion of warm water washing in a warm water washing device having two washing nozzles.
A change-over valve device 10 is so constituted that a valve body 20 is stored in a valve case 11 in a rotatable manner by a rotational driving device 30. After the completion of warm water washing, and the valve body 20 is set in a position for a linking groove 23 to connect outflow ports 13 and 14 to each other. The jetting of warm water is stopped, at the same time, the washing nozzles starts to move back, the residual warm water in a cylinder case flows into the change-over valve device 10 from one outflow port 13 (14), it flows out from the other outflow port 14 (13) through the linking groove 23, and it flows into the cylinder case of the other washing nozzle. As a result, since the residual warm water in the cylinder case is quickly discharged, the washing nozzles returns to the initial position within a short time.
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AWATA TSUTOMU
KOIKE HIDEYA
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