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Shutter Mechanism for Flexible Disk Cartridge

IP.com Disclosure Number: IPCOM000042613D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04

Publishing Venue


Related People

Carey, PD Evans, DA Hatchett, MR Heath, JS [+details]


A flexible disk cartridge has a pair of opposed plane walls in each of which is a head access slot. The cartridge is provided with a double shutter plate, which locates in relieved areas of the outer faces of the walls surrounding the access slots. The shutter plate is mounted on a crank which is pivoted near to one corner of the cartridge. The shutter is positively latched in its open or closed position by the action of a restoring spring and is opened against the action of the spring by the insertion of the cartridge in the drive. Fig. 1 is an exploded view of the cartridge and shutter mechanism, excluding the disk. The disk would be enclosed between the two walls 10 and 11 of the cartridge and centered on hub access holes 12 and 13.