| 摘要 |
In the present invention, a shaping air ring (10) is configured from a body (11), a cover (13), and a nozzle (15). The tip of the nozzle (15) is provided with a tapered conical protrusion (17) that is abutted against the cover (13) in a gapless contacted state. A plurality of inclination grooves (20) are provided along the entire circumference of a tapered taper surface (17C) of the conical protrusion (17). Furthermore, first shaping-air injection holes (23), which inject shaping air towards a discharge edge (9E) of a rotary atomizing head (9), are provided between each inclination groove (20) and the inner circumferential surface (13B2) of the cover (13). A second shaping-air injection hole (24), which injects shaping air along the outer circumferential surface (9C) of the rotary atomizing head (9), is provided to an inner circumferential surface (16A) of the nozzle (15). |
