Flexible magnetic disk driving apparatus with lubricated surface

Details Flexible magnetic disk driving apparatus with lubricated surface Flexible magnetic disk driving apparatus with lubricated surface

1984-03-20

1986-12-16

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

369270, G11B 5016, G11B 2300, G11B 2500

Patent

active

046301518

ABSTRACT:
An apparatus for driving a flexible magnetic disk comprises an upper member and a lower member for positioning a flexible magnetic disk sheet of the flexible magnetic disk by engagement with a circular hole at the center of the magnetic disk sheet. A lubricating material is applied onto the surfaces of the upper members and the lower members, thereby to decrease the coefficient of friction of the upper member with respect to the magnetic disk sheet to a value within the range of 0.45 or less, and that of the lower member to a value within the range of 0.30 or less.

REFERENCES:
patent: 4354213 (1982-10-01), Martinelli
patent: 4409629 (1983-10-01), Puls
patent: 4485464 (1984-11-01), Shimaoka
patent: 4499996 (1985-01-01), Coyle
patent: 4523246 (1985-06-01), Okuzawa
patent: 4544977 (1985-10-01), Ozawa et al.

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