| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the supply of a power source is enlarged by the part, the number of parts is increased and a cost is increased because conventionally, a passage is opened and closed by using a drive means comprising a bypass electromagnetic valve for washing a nozzle for private part washing. SOLUTION: A tank for nozzle shell washing for storing nozzle washing water for washing the shell of the nozzle of the private part washing is arranged on the upper part of the nozzle for the private part washing, nozzle washing water stored in the tank for the nozzle shell washing is fallen by interlocking with the extension and contraction movement of the nozzle for the private part washing, and the nozzle for the private part washing is washed. Thereby the supply of the power source is reduced as compared with the case that opening and closing of the passage for the nozzle washing are conventionally performed by using the electromagnetic valve, the number of the parts is decreased and a cost can be reduced.
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