Rotary Atomizing Electrostatic Coating Apparatus

摘要

A rotary atomizing electrostatic coating apparatus includes air feed passages (22, 23, 25) connected to an air bearing (17, 21), a turbine (16), and a shaping air cap (13), respectively. In any one of air feed passages, a divergence portion (26) for causing a portion of air flowing in the one air feed passage to diverge from the one air feed passage is formed so that a diverging air flows into an interior of the drive shaft (18). As a result, it is not necessary to provide an additional, air feed passage and an air source therefor for preventing paint from entering a bearing clearance between the drive shaft (18) and the air motor. As a result, a size of the apparatus will not be large and a cost of the apparatus will not substantially increase.