| 摘要 |
PURPOSE:To attain excellent magnetic recording and reproduction while the assembling error of a head carriage of a rotor and a feeding cam is decreased by fitting a rotor of a sheet motor and a feeding cam freely turnably to a center shaft fixed to a chassis. CONSTITUTION:The center shaft 1 is fixed to the chassis 2, the feeding cam 3 is fitted to the shaft 1 and no boss is used between a rotor 8 and a chassis 2 and between the rotor 8 and the cam 3. The chassis 3, and the cam 3 are fitted directly to the shaft 1, the mount hole diameter of the chassis 2 and the cam 3 is decreased and the gap among the chassis 2, the mount hole of the cam 3 and the shaft 1 is reduced. Thus, the assembling error between the rotor 8 and the head carriage 11 and between the rotor 8 and the cam 3 is decreased, the azimuth error and feeding error are reduced to attain excellent magnetic recording and reproduction.
|
