Browse Prior Art Database

Diskette with Slotted Bail Load Pad Area

IP.com Disclosure Number: IPCOM000051160D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Bothun, ME: AUTHOR

Abstract

Flexible disk drives use a bail load pad to control the location and axial motion of the disk with reference to a platen. A bail load force higher than that necessary to hold the diskette jacket against the platen increases disk wear and imposes a higher drive torque requirement. Inadequate bail load force results in loss of control of the location and axial runout of the disk. While a flat diskette jacket may require only a minimum bail load force to position the disk, a warped jacket may require substantially more force since the jacket itself must be flattened.

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Diskette with Slotted Bail Load Pad Area

Flexible disk drives use a bail load pad to control the location and axial motion of the disk with reference to a platen. A bail load force higher than that necessary to hold the diskette jacket against the platen increases disk wear and imposes a higher drive torque requirement. Inadequate bail load force results in loss of control of the location and axial runout of the disk. While a flat diskette jacket may require only a minimum bail load force to position the disk, a warped jacket may require substantially more force since the jacket itself must be flattened.

The diskette jacket 1 has the usual control aperture 2 which allows a drive collet to engage the disk 3. A transducer access slot 4 is in the usual location. Bail load force is applied generally in the shaded area 5. A pair of narrow slots 6 and 7 exist on either side of the bail load area. These slots reduce the bail load force required to position the disk. The slots may be made narrow (2.5 mm) to minimize the possibility of disk contamination through the slots.

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