Abstract: Intended is to provide a technique for a paint feeding device, which is enabled by an easy device constitution to realize the reduction of the quantity of a rinsing liquid used and to retain an excellent rinsing property. A coater or the paint feeding device is equipped with a paint feeding passage, which has a discharge port at its one end, in which a rinsing liquid feeding device for feeding a rinsing liquid to the inside and an air feeding device for feeding air to the inside are connected to the end portion on the opposite side of the discharge port and in which a plurality of paint feeding devices for feeding the paint to the inside are connected between the discharge port and the opposite side end portion. The rinsing liquid feeding device and the air feeding device are connected to the paint feeding passage through a rinsing liquid feeding passage disposed separately of the paint feeding passage.

Abstract: A rotary atomizing head 1, which has an inner peripheral surface 2 whose diameter increases from a bottom 21 of the inner peripheral surface toward a tip thereof, and atomizes and releases paint by applying a centrifugal force generated by rotation to the paint supplied to the bottom of the inner peripheral surface, includes a paint supply nozzle 11 for supplying the paint and a cleaning solution to the bottom of the inner peripheral surface, and the paint supply nozzle has a nozzle hole 10a for discharging the paint and the cleaning solution from a rotation center O portion of the rotary atomizing head in a direction substantially perpendicular to a rotation axis of the rotary atomizing head. The rotary atomizing head 1 also includes a dam portion 4 that is provided in an intermediate portion between the bottom and the tip of the inner peripheral surface and dams the paint and the cleaning solution supplied from the paint supply nozzle to the bottom and flow along the inner peripheral surface toward the tip.