STEPPING MOTOR Russian patent published in 1994 - IPC

FIELD: computer-aided electric drives. SUBSTANCE: electric motor has stator which is three-legged wound core, armature mounted for transmitting motion to output shaft and made as sector installed on bracket for moving in direction perpendicular to armature turn on flexible hanger that functions to provide for independent relative movement of armature and output shaft when windings are de-energized; output shaft is drum-shaped at area where it mechanically engages armature bracket. As core windings are alternately energized by voltage pulses of various magnitudes, bracket-mounted armature performs oscillatory motion within three-legged core and carries away output shaft moves unidirectionally at sampled intervals. EFFECT: enlarged range of motor torques due to mechanical engagement between armature and output shaft only while the latter is moving. 5 cl, 6 dwg