TUBULAR MICROOSCILLATION MOTOR

摘要

PROBLEM TO BE SOLVED: To obtain a tubular microoscillation motor employing an extremely thin tubular micromotor in which unsmooth start due to bending of shaft is eliminated while prolonging the service life and oscillation is enhanced while shortening the overall length. SOLUTION: A shaft 3 projecting from one end of a tubular micromotor 2 is mounted with a reverse L-shaped base 5 to be fixed with an eccentric weight 4 for generating oscillation. The eccentric weight 4 for generating oscillation comprises an oscillation piece 6 having a circumferential open angle equal to 180-αdeg. (where, 1 deg.<αdeg.<90 deg.). The oscillation piece 6 has outer circumferential part larger than the radius of the tubular micromotor 2 and extends axially up to the side face at one end part thereof.