| 摘要 |
<p>PURPOSE:To reduce the thickness of a step motor and facilitate the to assembling work of the motor by containing an oscillator block in which a crystal oscillator and so forth are sealed in the central recess of a stator yoke, mounting a coil therearound, and then coupling the teeth of a magnetic pole with the opening of a yoke. CONSTITUTION:A crystal oscillator, a capacitor, a frequency divider, an inverter and so forth are sealed in a cylindrical oscillator block 1, and the block 1 is contained in the central recess 6a of a stator yoke 6. Further, a ring-shaped coil frame 4 on which a coil 5 is wound is contained in the annular recess 6b of the yoke 6. After the teeth 9 of the magnetic pole is associated with the opening of the yoke 6 and magnetically coupled therewith, a disk-shaped rotor 12 is journaled on a shaft 7 projected from the center of the teeth 9, and confronted with the teeth 9. Thus, the entire step motor can be reduced in thickness and in size, and assembling work and wiring work can be facilitated.</p> |
