| 摘要 |
PURPOSE:To enhance the efficiency and to generate a strong drive force by forming the surface of the side contacted with the stator of a driven unit of an elastic material for exciting a surface wave. CONSTITUTION:When a high frequency voltage is applied to a piezoelectric unit 32 secured to one end of a stator 31 made of an elastic material, the stator 31 is bent and vibrated to generate a surface wave on the surface contacted with a rotor 33. The rotor 33 formed of the elastic material integrally with a slider 34 is affected by the vibrating pressure of the surface wave to generate the surface wave by the bending vibration having coaxial vibrating frequency and sonic velocity. The rotor 33 is driven in the prescribed direction by the frictional force with the stator 31. |
