| 摘要 |
PURPOSE:To enhance the dimensional accuracy and to readily associate a motor by forming a cut and erected portion on part of a magnetic disc, and burying the cut and erected portion in a composite permanent magnet, thereby integrally forming it. CONSTITUTION:A rotary drive pole 12 is opposed to the flat portion of a drive flat coil. A composite permanent magnet 11 is opposed to the flat portion of an FG flat coil, and formed of a resin magnet which includes FG pole 13 connected with the pole 12. A magnetic disc 15 is formed on the surface which is not opposed to the drive flat coil and the FG flat coil. A cut and erected portion 15 is formed at part of the disc 15, and the portion 16 is buried in the magnet 11, and the magnet 11 and the disc 15 are integrally inserted together. |
