Rotary atomizing head type coating machine

A rotary atomizing head type coating machine comprising:

• a motor of an air-driven type;
• a hollow rotational shaft that is rotatably supported by the motor and including a front end that projects forward from the motor;
• a rotary atomizing head mounted in the front end of the rotational shaft and that sprays paint supplied thereto while rotating together with the rotational shaft;
• and
• a feed tube that extends through an inside of the rotational shaft from a rear side of the motor to the rotary atomizing head for supplying the paint to the rotary atomizing head;
• wherein the feed tube comprises:
• a connecting member provided in a rear side of the motor and including one or plural paint supplying ports connected to a paint supplying source;
• an elongated tube body formed of a hollow tubular body, and including a base end connected to the connecting member and a front end extended in the rotational shaft toward the rotary atomizing head;
• a positioning member provided in the front end of the tube body and including at least one tube positioning hole axially penetrating therein;
• and
• one or plural resin paint tubes provided to axially extend in the tube body, and including a base end connected to the paint supplying port of the connecting member and a front end inserted through the tube positioning hole of the positioning member, and
• wherein the paint tube is formed as a tubular body in an inside of which a paint passage is formed by using a resin material having water repellency, and
• wherein the at least one tube positioning hole of the positioning member includes a plurality of projecting portions that support the point tube by making top parts of the projecting portions projecting to an inner diameter side in contact with an outer peripheral surface of the paint tube.