Browse Prior Art Database

Cartridge for Magnetic Disk

IP.com Disclosure Number: IPCOM000087170D
Original Publication Date: 1976-Dec-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

King, FK: AUTHOR [+2]

Abstract

The cartridge 8 (Fig. 1) comprises an upper cover 10 and a lower cover 12 joined at three of their edges leaving an open cartridge end 8a. A magnetic disk 14 having a nether-placed stabilizing plate 16 is disposed in cartridge 8, and a pair of spaced forks 18 and 20 are movable into the front end 8a of cartridge 8 for opening up cartridge 8 to allow the entrance of a magnetic transducer 22 and a supporting member 24 therefor for data transferring action on the lower surface of disk 14.

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Cartridge for Magnetic Disk

The cartridge 8 (Fig. 1) comprises an upper cover 10 and a lower cover 12 joined at three of their edges leaving an open cartridge end 8a. A magnetic disk 14 having a nether-placed stabilizing plate 16 is disposed in cartridge 8, and a pair of spaced forks 18 and 20 are movable into the front end 8a of cartridge 8 for opening up cartridge 8 to allow the entrance of a magnetic transducer 22 and a supporting member 24 therefor for data transferring action on the lower surface of disk 14.

Disk 14 is fixed to a hub 26 (Fig. 2) having a central portion 28 and an annular flexible section 30. Hub 26 has a steel ring 32 fixed to it on its lower surface, and a cone-shaped indentation 28a is provided on the bottom surface of central portion 28. Upper cover 10 is provided with radially extending ribs 34 (Fig. 1) and an annular rib 36 connected with ribs 34. Disk 14 is driven from spindle 38 and hub 40 affixed thereto. Hub 40 has a ring-shaped magnet 42 disposed therein for engaging with steel ring 32. Spindle 38 has ball 44 that enters indentation 28a for centering disk 14 with respect to spindle 38.

In operation, cartridge 8 is positioned over spindle 38 and hub 40 so that magnet 42 engages ring 32 and ball 44 enters indentation 28a. During such positioning, forks 18 and 20, which may be fixed, open the front end 8a of cartridge 8. Transducer 22 on member 24 may then be moved into transducing position with respect to the lower surface of disk 14...