Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1986-07-15
1988-05-24
Hecker, Stuart N.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
369270, G11B 17028, G11B 5016, A63D 700
Patent
active
047470020
ABSTRACT:
A disk clamping mechanism for a disk driving device employed in an apparatus for writing information in a disk and reading the information recorded in a disk, such as a recording/reproducing apparatus, has a rotary system including a hub for centering a disk relative to and pressing the disk against the spindle hub of the disk driving device and a collet for pressing the hub toward the spindle hub, and a nonrotational system including carrier for moving the rotary system toward and away from the spindle hub, a collet supporting member supporting the collet and fastened to the carrier, a ball receptacle loosely fitted in the collet supporting member, and a spring urging the collet supporting member and the ball receptacle away from each other. The rotary system and the nonrotational system are joined by means of a spherical tip or a conical tip at a position on the lower side toward the spindle of the disk driving device below to a disk clamping surface so that tilting of the hub is corrected as the hub is fitted in the spindle hub attached to the spindle.
REFERENCES:
patent: 3898814 (1975-08-01), Chou et al.
patent: 3965485 (1974-09-01), Morin
patent: 4068851 (1978-01-01), Yamamura
patent: 4339778 (1982-07-01), Wise
patent: 4420830 (1983-12-01), Green
patent: 4539614 (1985-09-01), Thompson
patent: 4577248 (1986-03-01), Cantwell
patent: 4592040 (1986-05-01), Ohsaki
Shimaoka Motohiro
Takikawa Makito
Alps Electric Co. ,Ltd.
Hecker Stuart N.
Shoup Guy W.
Urcia Benjamin E.
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