Browse Prior Art Database

Take Up Reel Drive Mechanism for Printer

IP.com Disclosure Number: IPCOM000088707D
Original Publication Date: 1977-Jul-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Lagergren, RE: AUTHOR

Abstract

The drive mechanism includes speed-reducing mechanism 10 between drive motor 12 and take-up reel 14 so that, with intermittent operation of motor 12, paper strip 16 may be wound intermittently onto reel 14, and printer 18 is effective to produce spaced print lines 20a, 20b, 20c, etc. on paper strip 16.

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Take Up Reel Drive Mechanism for Printer

The drive mechanism includes speed-reducing mechanism 10 between drive motor 12 and take-up reel 14 so that, with intermittent operation of motor 12, paper strip 16 may be wound intermittently onto reel 14, and printer 18 is effective to produce spaced print lines 20a, 20b, 20c, etc. on paper strip 16.

Motor 12 may be a synchronous motor. Speed reducer 10 includes coupling 24 having a pair of opposite slots 24a into which a pair of pins 26, fixed on a stationary frame part 28, extend. Drive wheel 30 has a pair of pins 32, fixed within wheel 30, which extend into slots 24b of coupling 24. Eccentric 34 is attached to and driven by shaft 22, and extends into the centrally located center hole 36 of drive wheel 30. Drive wheel 30 is disposed within reel 14 and is located eccentrically with respect to an internal drive surface 14a of reel 14, and a one-way engaging fabric 38 is fixed on the outer surface of wheel 30.

Paper strip 16 winds up on reel 14 traveling in direction A, and strip 16 extends over fixed platen 40 positioned opposite printer 18. Printer 18 may be a conventional wire type and traverses back and forth across platen 40 in directions B.

Motor 12 is intermittently energized so as to cause output shaft 22 and thus eccentric 34 to rotate for one-half revolutions. Drive wheel 30 is continuously in contact with the internal drive surface 14a through one-way engaging fabric 38, and moves between diametrically opposed...