AIRLESS SPRAY GUN

摘要

An airless spray gun includes: an ultrasonic device that has a vibrating element (11) that generates ultrasonic vibrations, and a horn (12), connected to the vibrating element (11), that transmits the ultrasonic vibrations generated by the vibrating element (11); a cap (13), in which a jet orifice (16) is formed, that is fitted to a distal end portion of the horn (12); and a coating material chamber (17) that stores a coating material and that is located between the distal end portion of the horn (12) and the cap (13). Acoustic streaming is produced at the distal end portion of the horn (12) by the ultrasonic vibrations generated by the vibrating element (11). The acoustic streaming discharges the coating material from the coating material chamber (I7) through the jet orifice (16).