Browse Prior Art Database

Double Bail for Loading and Unloading Recording Heads

IP.com Disclosure Number: IPCOM000045441D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Sendelweck, ML: AUTHOR

Abstract

Shown above is a side view of a double-bail assembly for lifting recording heads away from a flexible disk in a double-side recording diskette drive. The double bail assembly consists of bails 10 and 12 pivoted about shafts 14 and 16, respectively. When actuated by a cam (not shown) acting on cam follower 18, the bails pivot apart to lift magnetic heads 20 and 22 away from flexible magnetic recording disk 24 inside cartridge 26.

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Double Bail for Loading and Unloading Recording Heads

Shown above is a side view of a double-bail assembly for lifting recording heads away from a flexible disk in a double-side recording diskette drive. The double bail assembly consists of bails 10 and 12 pivoted about shafts 14 and 16, respectively. When actuated by a cam (not shown) acting on cam follower 18, the bails pivot apart to lift magnetic heads 20 and 22 away from flexible magnetic recording disk 24 inside cartridge 26.

Recording heads 20 and 22 are carried by arms 28 and 30, respectively. In the above drawing, the arms are viewed end-on and are pivoted at the back. Upper bail 10 contacts lip 32 on arm 28, while the lower bail contacts lip 34 on the lower arm 30. When the cam (not shown) lifts cam follower 18 upwardly, bail 10 rotates about shaft 14 to lift head arm 28. At the same time, arm 10 through adjusting screw 36 and bell crank 38 rotates bail 12 downwardly to lift arm 30 away from recording disk 24.

By using a double-bail assembly, arms 28 and 30 may be mounted in the disk drive independently from each other with regard to their load/unload movements. The double bail permits direct lifting of each head arm away from the recording disk. Adjustment screw 36 may be used to adjust the load/unload operation so that heads 20 and 22 contact recording disk 24 simultaneously.

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