VIBRATOR Russian patent published in 1996 - IPC

FIELD: drive of vibration tool. SUBSTANCE: motionless parts 1 and 2 and armature 5 with two degrees of freedom are made in form of coaxial cups with axial grooves and with annular windings 3 and 4, disposed between the cups. Grooves of motionless parts are disposed asymmetrically in relation to axis of symmetry of the armature. teeth of armature enter grooves of motionless part asymmetrically in relation to axis of symmetry of the grooves. EFFECT: improved reliability of operation. 1 dwg