PIEZOELECTRIC STEPPING MOTOR Russian patent published in 2001 - IPC

FIELD: actuating mechanisms for electrical engineering, telemechanics, etc. SUBSTANCE: motor has frame accommodating locking assemblies and moving part. Locking assemblies are built up of at least two piezoelectric units longitudinally arranged inside frame in tandem or in transversal plane. First piezoelectric unit has revolving, shifting, and locking piezoids, insulators, and frictional member; second piezoelectric unit has locking piezoid, insulators, and frictional member; the latter is engageable with moving part. Piezoelectric units arranged in transversal plane are sector-shaped. EFFECT: simplified design, facilitated manufacture, enhanced positioning force and precision. 3 cl, 16 dwg