PURPOSE: To prevent water hammer and prolong the lifetime of a water discharge valve by opening the valve when shower is to be stopped, shutting slowly the second regulator valve for regulation of the amount of passing hot/cold water, and thereupon shutting the first regulator valves for regulation of the amount of discharging hot/cold water.
CONSTITUTION: The first regulator valves V1 are provided in the number corresponding to shower nozzles 5... to regulate the amounts of their hot/cold water discharging individually. The second regulator valve V4 is installed on the way of a hot/cold water supply path leading from a hot water/cold water mixing valve V2 to the first regulator valves V1 and regulates the amount of passing hot/cold water. When stop of shower use is set by an operation part 7, a control part 8 controls the valves V1-V4 at respective specific timings in conformity to the output signals given by the operation part 7. That is, the control part 8 first opens water discharge valve V3, shuts the first regulator valves V1 with the specified time delayed by t1, and also shuts the second regulator valve V4 slowly. After the second regulator valve V4 is fully closed, the exhaust valve V3 is shut with the specified time delayed by t2.
| JP2021171560 | MIST SHOWER DEVICE |
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| JP3493657 | SIMPLE SHOWER DEVICE |
SAKURAI SATOSHI
HAMANAKA YASUKO
ARAI TATSURO
| JPH03224525A | 1991-10-03 | |||
| JPH0449923A | 1992-02-19 |