| 摘要 |
PURPOSE:To adapt to assemble in a hollow body in a movable unit by winding a coil in a circular-arc shape around a rotor and specifying the surface by the winding of a conductor. CONSTITUTION:A coreless motor is formed substantially in a spherical shape at the outer profile, a hollow spherical coil 6 wound in a spheral bobbin shell 5 is contained in a pair of semispherical cup-shaped yoke shells 2, 4 which are specified in the profile, and a spherical permanent magnet 8 is further contained in the hollow body in a spherical coil 6. A rotational shaft 16 is inserted into the through hole 10 of the magnet 8 and a supporting member 14. A hub 22 is provided in the shell 2, and a commutator 24 which is contacted with a pair of brushes 26 is provided on the hub 22. |
