Patent ID: 9505014
Filing Date: 2016-11-29
CPC Classification: B05B

Claim Text:
1. A rotary atomizing head for an electrostatic coater, including an assembly of an atomizing head body and a structural component, in which the atomizing head body has an inner circumferential surface on which paint flows under the centrifugal force, and the structural component accessible from the front of the atomizing head body to be removably fixed in a central concavity formed in the central portion of the atomizing head body, wherein the rotary atomizing head is free of an O-ring between the atomizing head body and the structural component removably fixed in the atomizing head body, said structural component comprising: a front wall forming a disc-shaped hub contiguous to the inner circumferential surface of the atomizing head body; a plurality of paint discharge openings formed at circumferentially regular intervals in an outer circumferential surface of the front wall; a plurality of cleaning openings formed in the central portion of the front wall; a side wall extending rearward from the outer circumferential surface of the front wall to be circumferentially continuous; a plurality of legs extending rearward from the outer circumferential surface of the rear end of the side wall; a pawl protruding outwardly from the rear end of each leg into a circumferential recess formed in a circumferential wall of the central concavity for engagement on a side wall of the circumferential concavity; a bottom wall disposed radially inside the plurality of legs; a spoon-cut recess formed in the bottom wall; and a paint space defined by the front wall, the side wall and the bottom wall, and wherein the circumferential wall of the central concavity is formed of an inclined wall gradually increased in diameter forward; wherein the outer circumferential surface of the side wall of the structural component is complementary in shape with the circumferential wall of the central concavity, and wherein the outer circumferential surface of the side wall of the structural component is in contact with the circumferential wall of the central concavity throughout the entire length of the structural component from a front end to a rear end thereof.