Apparatus for rotating a magnetic disc

Details Apparatus for rotating a magnetic disc Apparatus for rotating a magnetic disc

1985-11-26

1987-06-09

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 99, 369270, G11B 1702

Patent

active

046724869

ABSTRACT:
An apparatus for rotating a magnetic disc provided with a central hole and an entrainment opening comprises a hub member which is mounted on the shaft of an electric motor and which is provided with a flat surface on which the magnetic disc can be supported. The upper end of the shaft projects with play through the central hole in the disc. An entrainment peg which engages with the opening in the disc is fixed to one end of a movable arm which has the opposite end pivoted on the hub member. The entrainment peg is housed with play in a hole in the hub member and can move radially to center the disc with respect to the shaft of the motor, by virtue of a reaction force (F) imposed on the disc. '

REFERENCES:
patent: 4517617 (1985-05-01), Tsuji et al.
patent: 4613921 (1986-09-01), Holmes

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