| 摘要 |
A rotary spraying head (7) is provided with a first cleaning fluid outflow channel (15) located on the rear side of a paint reservoir (12) and opening to the outer circumferential surface (8C) of the rotary spraying head (7). On the other hand, the rotary spraying head (7) is provided with a second cleaning fluid outflow channel (20) located around the distal end of a paint tube (18) and having the outflow side opening to the paint reservoir (12). A nozzle (22) is provided at the outlet of a cleaning fluid tube (19), and an annular chamber (24) for storing cleaning fluid is defined in the nozzle (22). The nozzle (22) is provided with first and second outlet opening (25, 26) for ejecting the cleaning fluid toward the first and second cleaning fluid outflow channels (15, 20). Furthermore, a check valve (27) for preventing backflow of the cleaning fluid is provided in the annular chamber (24) of the nozzle (22). |
