| 摘要 |
PURPOSE:To increase durability of a motor by winding a driving force transfer member on the circumferential surface of a rotor. CONSTITUTION:An ultrasonic motor 1 is constituted of a stator 2, a rotor 3 and a piezo-vibrator 4. The piezo-vibrator 4 is constituted of a piezo-electric element 5 and a driving force transfer member 6 is such that the motion of expansion distortion is transferred to the rotor 3 to generate the circumferential component force from the rotor 3 and to rotate. The member 6 is formed of a steel wire, and is interlocked with a vibration amplifier arm 7 and an interlocking section 8. The stator 2 have a vertical section 10 and a horizontal section 11. |
