G - Physics – 11 – B
Patent
G - Physics
11
B
352/23.3
G11B 17/02 (2006.01) G11B 17/028 (2006.01) G11B 25/04 (2006.01)
Patent
CA 1276721
ABSTRACT OF THE INVENTION A magnetic or optical disk load/unload device and method for automatically centering and clamping a disk (14) to the spindle (16) of an information storage device. The apparatus is comprised of a toggle arm (2); a toggle arm rotating means (3); a disk support base (4); a support hub (10) having a centering stem (13) and a concentric annular steel ring (12) disposed on its mating surface; a means for clamping the hob to the support base; a spindle (16) having a centering hole (17) on its mating surface and a concentric magnetic material ring (18) on its mating surface; and a spindle rotating means. In operation, the toggle arm is rotated from a first bent position causing the support base hub and disk located thereon to advance toward the spindle, the hub slidably retained on the base by a of clamping member activated by a cam assembly. Upon full extension of the toggle arm, the hub and disk are centered on the spindle, clamped to same by the magnetic and steel rings. The toggle arm continues on to a second bent position, causing the support base to retreat from the support hub, the clamping member having been released. At this point the spindle, disk and hub are free to rotate. For unload, the above described procedure is reversed.
464491
Smart & Biggar
Storage Technology Partners II (through Stc Optical Disk Develop Managing General Partner)
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