Print motor assembly for use in a magnetic recording/reproducing

Details Print motor assembly for use in a magnetic recording/reproducing Print motor assembly for use in a magnetic recording/reproducing

1998-06-01

1999-10-19

Klimowicz, William J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

36013024, G11B 552

Patent

active

059699094

ABSTRACT:
A head drum assembly for use in a magnetic recording/reproducing apparatus includes a rotary shaft, a head drum secured to the rotary shaft via a bearing, a bushing fitted around the rotary shaft, for preloading the bearing, the bushing having a top and a bottom surfaces, and a print motor assembly. The print motor assembly includes an upper rotor yoke mounted on the top surface of the bushing, a printed circuit board stator winding attached on the head drum so as to be located below the upper rotor yoke, a lower rotor yoke attached on the bottom surface of the bushing so as to be positioned below the printed circuit board stator winding, and a permanent magnet disposed at an inside of the lower rotor yoke facing toward the printed circuit board stator winding.

REFERENCES:
patent: 4347536 (1982-08-01), Miyashita et al.
patent: 4536672 (1985-08-01), Kanayama et al.
patent: 5675206 (1997-10-01), Horski
patent: 5739985 (1998-04-01), Kim

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