| 摘要 |
PROBLEM TO BE SOLVED: To perform effective washing by making a plurality of washing nozzles selectively function by water division, to divide water in a laminar flow state in a low bulk route to a rotary washing nozzle, and to perform stable rotation. SOLUTION: Washing water from a washing pump 8 is divided simultaneously or at different times and selectively supplied to one, two or more delivery paths 33-35 of the plurality of washing nozzles 12 and 13. The water division means 14 includes a valve chamber 133 for water division, a water division path 48 having outflow paths 36-38 connected to the valve chamber 133 and communicated with the delivery paths 33-35, and a valve body 32 for switching the washing water that is flowing in so as to selectively divide it inside the valve chamber 133. The outflow path from the valve chamber 133 to a rotary support part 41 supporting the rotary washing nozzle 12 and communicating with it has an extension route B extending along a wall 4a to arrange the rotary washing nozzle and a bent path C bent in the direction of a rotation center, and at least the outer corner side of the bent path C is in a curved shape. COPYRIGHT: (C)2009,JPO&INPIT
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