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Tape Drive Tension Nonuniformity Adaptive Roller

IP.com Disclosure Number: IPCOM000108889D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-23
Document File: 1 page(s) / 31K

Publishing Venue

IBM

Related People

Onton, A: AUTHOR

Abstract

Disclosed are two methods for correcting tape displacement in a tape drive. The displacement occurs when the tape becomes warped, causing nonuniform tension. The tape is consequently displaced in the direction of greatest longitudinal tape tension.

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Tape Drive Tension Nonuniformity Adaptive Roller

      Disclosed are two methods for correcting tape displacement in a
tape drive.  The displacement occurs when the tape becomes warped,
causing nonuniform tension.  The tape is consequently displaced in
the direction of greatest longitudinal tape tension.

      The first proposed solution introduces a pair of oppositely
tapered rollers into the existing tape path which are allowed to move
together rigidly in a direction perpendicular to the original tape
path.  The tape passes on opposite sides of the two rollers.  Such a
roller couple compensates for nonuniformities in the longitudinal
tape tension, producing uniform tension along the tape path in the
drive.

      The solution proposes a variable roller mounting which
dynamically adjusts the tilt of its axis in response to nonuniform
longitudinal tape tension.  Wrap angle can be adjusted as much as 180
degrees.  The adaptable roller assures uniform longitudinal tension
as the tape travels over the read/write head.

      Disclosed anonymously.