Browse Prior Art Database

Disk File Configuration

IP.com Disclosure Number: IPCOM000035312D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 4 page(s) / 119K

Publishing Venue

IBM

Related People

Reidenbach, JR: AUTHOR

Abstract

The magnetic disk file shown in the figures has an extruded supporting frame. Its geometrical shape provides a means to attach the head/arm and spindle shafts at each end. Fig. 1 is an isometric view of the frame. It is box-shaped with mounting ears 12 protruding from both ends. Fabrication requires machining that is significant, but simple. Opposite parallel surfaces A and B must be cut from the long extrusion and finished off. Corners of the mounting ears must be removed to form the surface card D to enable the device to fit into the form factor. Counter-bored holes E and F must be very accurately line-bored to provide parallelism between the head/arm and spindle shafts. Multiple tapped holes G may be provided to attach the covers, although other means may also be used for attachment. (Image Omitted)

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Disk File Configuration

The magnetic disk file shown in the figures has an extruded supporting frame. Its geometrical shape provides a means to attach the head/arm and spindle shafts at each end. Fig. 1 is an isometric view of the frame. It is box- shaped with mounting ears 12 protruding from both ends. Fabrication requires machining that is significant, but simple. Opposite parallel surfaces A and B must be cut from the long extrusion and finished off. Corners of the mounting ears must be removed to form the surface card D to enable the device to fit into the form factor. Counter-bored holes E and F must be very accurately line-bored to provide parallelism between the head/arm and spindle shafts. Multiple tapped holes G may be provided to attach the covers, although other means may also be used for attachment.

(Image Omitted)

Fig. 2 shows a view of the Frame 1 with the three major subassemblies: head/arm assembly 2, assembly 3, and spindle assembly 4 exploded outwardly. As shown, these subassemblies are complete and ready to be fitted into the supporting structure. In the sequence of assembly, the magnet assembly, less the end plate, is first fitted to the structure and attached by Screws 5. The spindle assemble is then fitted into place and attached at both ends by shoulder Screws 6. The

(Image Omitted)

head/arm assembly is subsequently fitted to the structure and attached at both ends by shoulder Screws 7. Merging of the heads to the disks is accomplished by rotating the head/arm assembly toward the spindle until the heads are sufficiently located between the disks, and then the heads are lowered onto the disk surfaces with whatever means is suitable for head retention/release. Finally, the magnet assembly end plate 13 is put into position to complete the magnetic circuit and t...