| 摘要 |
PROBLEM TO BE SOLVED: To enable easy assembly and disassembly of an atomizer head main body and a hub member, and to facilitate an operation for removing a coating stuck on a hole-shaped coating passage. SOLUTION: The rotary atomizer head body 12 is provided with a hub engagement recessed-groove 13 on the inner circumferential side 12F of the head body 12, and the hub member 14 is provided with a disk-shaped covering part 15 and a plurality of leg parts 17 engaged with the hub engagement recessed-groove 13 while the leg parts being elastically deformed, and notched grooves 18 positioned between the respective leg parts 17. The hub member 14 is attached to the head body 12 by engaging the leg parts 17 with the hub engagement recessed-groove 13 through pressing the hub member 14 into the head body 12. In this state, a hole-like coating passage 19 is formed between the hub engagement recessed-groove 13 and the notched groove 18 and a ring-shaped coating passage 20 is formed between the inner circumference surface 12F and a covering part 15. On the other hand, the coating stuck on the hub engagement recessed-groove 13, the notched groove 18 and the like can be easily removed by disassembling the hub member 14 from the head body 12.
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