Browse Prior Art Database

Opening Mechanism for Disk Cartridge

IP.com Disclosure Number: IPCOM000060457D
Original Publication Date: 1986-Apr-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 67K

Publishing Venue

IBM

Related People

Rinkleib, HO: AUTHOR

Abstract

A disk cartridge containing a flexible magnetic recording disk is provided with cover members which are automatically pulled back as the cartridge is inserted into a drive device, thereby providing access to the disk for rotation and transducing. In one embodiment illustrated in Figs. 1-3, the disk cartridge 11 consists of two identical halves 11a, 11b, with a flexible disk 12 in between. The two identical halves of the cartridge have integrally molded latches 13, 14 with circular protrusions 13a, 14a which nest in holes 16 in a cover 21 when in the closed position. On each side of the tray 17 into which the cartridge is inserted are one-revolution wheels 18, 19 with protruding pins 18a, 19a perpendicular to the axis of the wheel.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 62% of the total text.

Page 1 of 2

Opening Mechanism for Disk Cartridge

A disk cartridge containing a flexible magnetic recording disk is provided with cover members which are automatically pulled back as the cartridge is inserted into a drive device, thereby providing access to the disk for rotation and transducing. In one embodiment illustrated in Figs. 1-3, the disk cartridge 11 consists of two identical halves 11a, 11b, with a flexible disk 12 in between. The two identical halves of the cartridge have integrally molded latches 13, 14 with circular protrusions 13a, 14a which nest in holes 16 in a cover 21 when in the closed position. On each side of the tray 17 into which the cartridge is inserted are one-revolution wheels 18, 19 with protruding pins 18a, 19a perpendicular to the axis of the wheel.

As the cartridge slides into tray 17 of the deck, wheels 18, 19 will roll along the cartridge and its cover halves 21a, 21b, and pins 18a, 19a in wheels 18, 19 will release latches 13, 14 from holes 16 in cover 21. Cover 21 then is held in its position by wheel pins 18a, 19a, while the cartridge continues to move to the end of tray 17 and expose the disk and the hub for a read/write operation. When the cartridge is to be removed from the read/write station, the procedure is reversed. As the cartridge is pulled out of the tray, the end step contacts cover 21 to withdraw it, and wheels 18, 19 roll back to their original positions and the cartridge is closed. In the embodiment of Figs. 4-6, disk 12 is p...