ROTARY ATOMIZING HEAD FOR ELECTROSTATIC COATING MACHINE

A mechanism component (4) which can be attached to and removed from an atomizing head body (2) is adapted to be easily positioned and to be reliably affixed to the atomizing head body (2). The mechanism component (4) is provided with a side wall (14) which continues in the circumferential direction, legs (16) which are provided with claws (16a), and a circumferential ridge (20) which is provided on the inner side of the legs (16) in the radial direction. The circumferential ridge (20) is seated on the outer peripheral section of a circumferential base (22) of the atomizing head body (2) and makes contact with the outer peripheral surface of the circumferential base (22). The peripheral wall (8) of the center recess (6) of the atomizing head body (2) comprises a tilted wall. The tilt of the outer peripheral surface (14a) of the mechanism component (4) is complementary to that of the peripheral wall (8). The entire region of the outer peripheral surface (14a) of the mechanism component (4) is substantially in contact with the peripheral wall (8) of the center recess (6).