Wanderwellenmotor.

摘要

A travelling-wave motor comprising support means (1,2); a vibrator member (3) which is supported by the support means (1,2); vibration-effecting means (5) for effecting vibration of the vibrator member (3) so as to generate travelling waves therein; and a movable member (6) a portion (8) of which contacts a part (4) of the vibrator member (3) so as, in operation, to be moved by the said travelling waves characterised in that the said travelling waves are generated radially of the vibrator member (3) in a primary oscillation mode.