Dynamic magnetic information storage or retrieval – Head mounting – For shifting head between tracks
Patent
1998-05-20
2000-12-26
Ometz, David L.
Dynamic magnetic information storage or retrieval
Head mounting
For shifting head between tracks
G11B 2102
Patent
active
061668893
ABSTRACT:
To provide a floppy disk device wherein positioning members of the PM type stepper motor are unitized with the base frame (3), the base frame comprises a housing fabricated in the same body of the same material with the base frame (3) wherein a coil assembly (13, 14) of the PM type stepper motor is fixed, and frame stator-teeth (3c) configured by punching out parts of the housing. An inner housing cap (21) having inner-housing-cap stator-teeth (21a) is put inside the housing for covering the coil assembly (13, 14). To an opening of the housing, a first pivot bearing (2') retained by a plate spring (22) is inserted. To an opening of a frame pivot-fixed face (3a) fabricated by punching out a part of the base frame (3), a second pivot bearing (2) is fixed. A lead-screw shaft (1) is set between the first and the second pivot bearing (2'and 2) compressing the plate spring (22).
REFERENCES:
patent: 4539611 (1985-09-01), Sidhu et al.
patent: 4700251 (1987-10-01), Fuke et al.
patent: 4751411 (1988-06-01), Fukaya et al.
patent: 5175723 (1992-12-01), Guha
patent: 5633849 (1997-05-01), Konno et al.
NEC Corporation
Ometz David L.
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