Chucking mechanism of center core of disk cartridge

Details Chucking mechanism of center core of disk cartridge Chucking mechanism of center core of disk cartridge

2006-01-17

2006-01-17

Tupper, Robert S. (Department: 2652)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

Reexamination Certificate

active

06987642

ABSTRACT:
Faulty engagement due to low surface precision of the engaging surfaces of a center core of a disk cartridge and a drive spindle is resolved. The center core10is positioned on the drive spindle20in a state where the center core10is in point contact with the drive spindle20at a minimum of three spots upon chucking. A minimum of three protrusions10dare provided on the bottom surface of the center core10, and lower ends P of the protrusions10dare in point contact with the upper surface21aof the drive spindle20.

REFERENCES:
patent: 4149207 (1979-04-01), Porter et al.
patent: 4497003 (1985-01-01), Abe et al.
patent: 4742419 (1988-05-01), Kato
patent: 5050158 (1991-09-01), Kitada et al.
patent: 5257152 (1993-10-01), Nagase

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