Apparatus for shifting the magnetic read/write head carriage in a floppy disk drive unit
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United States of America Patent
Stats
-
Feb 9, 1982
Grant Date -
N/A
app pub date -
Jan 11, 1980
filing date -
Jan 11, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A floppy disk magnetic information storage and retrieval unit having a magnetic read/write head carriage and apparatus for shifting the carriage radially with respect to the floppy disk to effect data transfer with selectable tracks on the disk. The carriage shifting apparatus includes a lead screw shaft; a carriage nut arranged on the shaft and moveable axially when the shaft is rotated; and a stepper motor having a permanent magnet rotor arranged coaxially with, and rigidly attached to one end of the shaft. Two bearings are provided to hold the shaft and rotor combination at opposite ends of the shaft.
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