Disk cartridge including door opening mechanism and improved hub

Details Disk cartridge including door opening mechanism and improved hub Disk cartridge including door opening mechanism and improved hub

1989-11-13

1991-10-22

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 86, 360 9701, G11B 2302

Patent

active

050601067

ABSTRACT:
A disk cartridge having a housing in which a disk is rotatably mounted via a hub assembly. The housing includes two cover plates, each of which has a door aperture that is selectively covered by a door that is controlled by a dedicated door control assembly. When the cartridge is inserted into a disk drive, each door is opened by its respective door opening assembly such that both sides of the disk are accessible for magnetic or optical read/write operations.
In the preferred embodiment, the hub assembly includes two hub halves, at least one of which includes a plurality of resilient fingers for leveling a surface of the disk when the cartridge is contained within the disk drive. At least one of the hub halves also includes a channel having a plurality of pockets formed therein such that when a spindle base having a torque transferring element is positioned adjacent to the pockets, one of the pockets is able to substantially immediately receive the torque transferring element.

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