Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1989-01-31
1991-10-22
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9703, G11B 1702
Patent
active
050600958
ABSTRACT:
A disk drive structure is shown which maximizes the axial length available for mounting disks within a predetermined height such as dictated by a form factor. A cast aluminum box frame is used which supports the spindle and actuator assemblies and forms a part of the head disk enclosure in cooperation with a drawn metal cover. The box frame captures the spindle and actuator shafts at each end to ensure maximum overall assembly stiffness and minimize the axial length required by the structure supporting the spindle. The box casting geometry is angled to establish the casting/cover joint region at a location beyond the zone of tangency of the disks nearest the form factor so that only the thinner cover is interposed in the region where the disks most closely approach the form factor. The cover and box frame are sealed and secured to one another by a thin compliant tape that does not contribute stress to the box frame during thermal cycling.
REFERENCES:
patent: 4714972 (1987-12-01), Biermeier et al.
patent: 4743995 (1988-05-01), Castle et al.
Rigotti James M.
Tufty Lyle R.
Zell Michael N.
International Business Machines - Corporation
Lahtinen Robert W.
Tupper Robert S.
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