| 摘要 |
PURPOSE:To efficiently drive by radially arranging a stator and a rotor, and driving them in a radial type. CONSTITUTION:A cylindrical vibrator 20 is formed of a soft magnetic material. An electrostrictive element 21 is polarized, and bonded to the outer periphery of the vibrator 20. A rotor 22 is made of a plastic magnet, and divided equally by six in a cylindrical shape. Part 23 of a rotor is made of a soft magnetic material, and bonded to the inside of a magnet rotor 22. A recess 25 is formed at the upper edges of the rotors 22, 23. Size projections 28 of a rotary disc 27 are engaged with the recess 25. The rotor 22 is attracted and contacted under pressure with the magnetic vibrator 20, and when an AC voltage is applied to the element 21, the rotors 22, 23 are driven, and rotated. Thus, a rotational shaft 30 is rotated. |
