Disk gripping device

Details Disk gripping device Disk gripping device

1990-11-05

1992-06-30

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9905, 360 9908, G11B 17022

Patent

active

051269007

ABSTRACT:
A device is provided for gripping a disk-like recording medium on a turntable. The recording medium is provided with a core, the core being formed with a central aperture and a positioning aperture. The central aperture has a pair of adjacent edges that are substantially perpendicular to each other, and the position aperture has a peripheral-side edge and a forward-side edge. The disk gripping device is characterized in that a contact point of a fulcrum hole of a swingable member with a fulcrum pin is held at a substantially predetermined edge position of the fulcrum hole which is nearest to a drive pin, both before and after the recording medium is gripped on the turntable.

REFERENCES:
patent: 4672486 (1987-06-01), Bettini
patent: 4825314 (1989-04-01), Maekawa et al.
patent: 4855850 (1989-08-01), Nagaoka et al.
patent: 4873595 (1989-10-01), Taguchi et al.
patent: 4903155 (1990-02-01), Maekawa et al.
patent: 4989107 (1991-01-01), Tsukahara
patent: 5010427 (1991-04-01), Taguchi et al.

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