Patent ID: 8840043

Claim:
A rotary atomization coating device, comprising: a rotary atomizing head including a paint storage and adapted to atomize paint supplied to the paint storage and to discharge the paint onto a work; and a paint supplying nozzle adapted to supply the paint to the paint storage, wherein the rotary atomizing head includes a plurality of bell cups, wherein each of the bell cups includes, at a front face thereof, a paint discharging face adapted to thin the paint by a centrifugal force, wherein the rotary atomizing head includes a plurality of paint supplying holes corresponding to the respective bell cups, wherein the paint supplying holes are adapted to supply the paint from the paint storage to the respective paint discharging faces, and wherein a plurality of grooves extending along a radial direction of the rotary atomizing head are formed at circumferential portions of the respective paint discharging faces.