G - Physics – 11 – B
Patent
G - Physics
11
B
352/24.3, 352/32
G11B 25/04 (2006.01) G11B 17/028 (2006.01)
Patent
CA 1252203
ABSTRACT Disclosed is a centering and clamping device consisting of: a disk elevator, a disk support, a disk centering assembly, a disk clamping assembly, and a disk rotating assembly. In operation the disk is raised out of the disk insert tray cartridge by the disk elevating means and raised upward to engage a taper on the spindle of the device spin motor, moving upward until the cooperation between the taper on the spindle neck and the tapering on the disk centering collar cause the disk to move laterally until precisely centered on the spindle. Thereafter, the continued upward movement of the disk on the elevator lifting assembly causes a magnet located on the disk support assembly to come into magnetic contact with a steel plate on the spindle platform, thereby securely clamping the disk to the spindle for rotation. Thereafter, the elevator assembly is moved downward clamping the disk from the disk support assembly, thereby allowing free rotation of the spindle disk and disk support means relative to a stationary elevator assembly. For removal, the above described procedure is reversed with the elevator moving slightly upward clamping into the disk support assembly, thereafter the entire assembly moving downward removing the disk from the spindle and moving further downward until the disk rests securely in a cartridge for removal from the device.
450945
Hunt William C.
Rickert David W.
Wilkinson Richard A. Jr.
Smart & Biggar
Storage Technology Partners II (through Stc Optical Disk Develop Managing General Partner)
LandOfFree
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