Helical band drive for disc storage apparatus

Details Helical band drive for disc storage apparatus Helical band drive for disc storage apparatus

G - Physics

11

B

352/21.33

G11B 5/55 (2006.01) F16H 19/00 (2006.01) H02K 7/06 (2006.01) H02K 7/10 (2006.01)

Patent

CA 1231173

-12- ABSTRACT Disc drive including a drive mechanism including a stepper drive motor for moving a carriage or the like to any desired position between two extreme positions long a path of travel. The drive motor includes a rotatable shaft coupled to the carriage through a band which is helically wound on the motor drive shaft. The disc drive has a head positioning apparatus in- cluding a carriage which mounts a magnetic head for movement relative to a recording medium; drive means for moving the carriage including a drive motor having a rotatable shaft, the flexible band being helically wound on the shaft to move the carriage. The band is wound on the shaft in two portions, one portion being wound on the shaft while the other is unwound.

478032

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