Flexible Disk Cartridges
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
For portability, it is desirable to employ a flexible disk in a disk cartridge container for exchanging it between disk drives as well as having a plurality of individual flexible disks accessible by a single disk drive. For efficiency, it is desirable to have as thin a cartridge as possible yet maintain a stable "line" condition of the flexible disk with respect to the backing plate and with respect to a transducer (not shown) accessing the disk in a recording area. As the cover of the cartridge is positioned closer to the plane of rotation of the disk, vortexing occurs tending to make the disk rotate in an unstable manner. An optimal antivortexing arrangement is shown in the figure wherein a pair of symmetrically disposed tangent ribs extend toward the rotation axis from opposite walls of the cartridge.