| 摘要 |
PCT No. PCT/JP97/03393 Sec. 371 Date May 28, 1998 Sec. 102(e) Date May 28, 1998 PCT Filed Sep. 24, 1997 PCT Pub. No. WO98/14278 PCT Pub. Date Apr. 9, 1998A rotary atomizing head assembly of the present invention is capable of washing off paint deposits from outer peripheral surface of a bell cup in a reliable manner. A paint reservoir (15) which is provided on a bell cup (11) is communicated with the outer peripheral surface of the bell cup (11) through solvent passages (16), and an annular guide (17) is provided around the outer peripheral side of the bell cup (11). Therefore, at the time washing the rotary atomizing head assembly (10), a thinner which is spouted out from a nozzle (6) is introduced into a solvent diffusing chamber (18) which is formed between the bell cup (11) and a enlarged front portion (17B) of the annular guide (17), through the paint reservoir (15) and solvent passages (16). After being diffused around the entire circumference of the bell cup (11) within the solvent diffusing chamber (18), the thinner is allowed to flow along the outer peripheral surface (11H) toward releasing edge (11D) at the fore end of the bell cup (11), washing away paint deposits from the outer peripheral surface (11H) of the bell cup (11).
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