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Browse Prior Art Database

Rigid Cartridge for Flexible Magnetic Disk

IP.com Disclosure Number: IPCOM000041916D
Original Publication Date: 1984-Mar-01
Included in the Prior Art Database: 2005-Feb-03
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Bornhorst, RJ: AUTHOR

Abstract

The cartridge includes rigid top assembly 5 and bottom assembly 6 that are permanently secured to one another to provide a protective container for a flexible disk 7. The bottom assembly consists of a molded cartridge bottom half 8 with a bail 9 placed in a recess 10 and the liner material 11 which is thermally fused (heat staked) to cartridge bottom wall surface 12. The liner material 11 is positioned by side-walls 14. The bail 9 is pressed inwardly by the drive to contact liner 11 against the disk surface for cleaning. Bail 9 is a separate part held captive between liner 11 and wall portions 15 by the laterally confining walls 16. The cartridge top assembly 5 consists of a molded cartridge top half with a liner material (not shown) thermally fused (heat staked) to the inner wall 18 of the cartridge top.

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Rigid Cartridge for Flexible Magnetic Disk

The cartridge includes rigid top assembly 5 and bottom assembly 6 that are permanently secured to one another to provide a protective container for a flexible disk 7. The bottom assembly consists of a molded cartridge bottom half 8 with a bail 9 placed in a recess 10 and the liner material 11 which is thermally fused (heat staked) to cartridge bottom wall surface 12. The liner material 11 is positioned by side-walls 14. The bail 9 is pressed inwardly by the drive to contact liner 11 against the disk surface for cleaning. Bail 9 is a separate part held captive between liner 11 and wall portions 15 by the laterally confining walls
16. The cartridge top assembly 5 consists of a molded cartridge top half with a liner material (not shown) thermally fused (heat staked) to the inner wall 18 of the cartridge top. The orientation lock 20 makes the cartridge nonsymmetrical and permits the cartridge to be inserted into a drive in only one orientation. The head-access slot 21 enables head contact with the magnetic disk 7 inside the cartridge, and a collet-access hole 23 affords access for the collet mechanism to locate and clamp the magnetic disk 7. An appearance groove 25, in the form of a recess, hides the match line after assembly of the top and bottom assemblies. It eliminates the unsightly gaps due to flatness variations and clearance gaps for assembly fit purposes. In addition, the groove 25 creates a relief area for registration stops in the cooperating drive to locate the bottom half of the cartridge only, eliminating the addition to registration tolerances...