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This article describes an enclosure for surrounding a plurality of record storage disks either on or off a disk drive having a spindle for supporting the record storage disk via a hub.
English (United States)
This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately
97% of the total text.
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Disk Pack Cover
This article describes an enclosure for surrounding a plurality of record
storage disks either on or off a disk drive having a spindle for supporting the
record storage disk via a hub.
The record storage disk can be of the removable or
non-removable type. The cover has an upper cover portion suitably
bolted to a lower cover portion. The portions have a cover overlap
for providing good sealing. The peripheral walls of the cover are
preferably closed to the peripheral edge of the record storage disk.
A suitable access opening (not shown) is provided in the cover.
When the disk pack is removed, the cover comes with it. A securing
knob applies force onto the stack of disks in the disk pack, and an
0-ring seals the opening between a centering ring and the large
aperture of the cover.
As shown in the drawing, a securing knob is loosened so that the cover can
move toward the centering ring. There, the cover is self centering with the land
area on the centering ring and is thereby located precisely both radially and
axially with respect to the drive. A locating pin in the centering ring prevents the
cover from turning and keeps the head arm open at the desired location for
transducing access to the record storage disk. A so-called V-plate supports the
upper cover and includes adjustment means so that concentricity between the
cover and the record storage disk can be fine tuned. A clamp holds the cover
against the V-plate after adjustment.