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Ribbon Cartridge and Drive Assembly

IP.com Disclosure Number: IPCOM000092105D
Original Publication Date: 1968-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Wanek, DJ: AUTHOR

Abstract

Ribbon cartridge 10 in A includes housing 11 for storing ribbon 12 in pleated form. Ribbon 12 enters housing 11 between stripping fingers 13 and 14 and emerges under control of a cantilevered, spring-biased pressure pad 15. Ribbon 12 is in endless form and is fed into housing 11 by cooperative action of drive rolls 20 and pressure rolls 21. Fingers 13 and 14 flank rolls 21 and 20, respectively, when 10 is mounted on post 25. Housing 11 has channel 16 to facilitate mounting 10 on post 25 as in B. Housing 11 is located on 25 so that the pinch point between rolls 20 and 21 is within housing 11. Retractable pin 26 enters opening 17 to establish this relationship. Pin 26 is manually retractable by wire lever 27. Rolls 21 are carried in a pivotally mounted frame 22.

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Ribbon Cartridge and Drive Assembly

Ribbon cartridge 10 in A includes housing 11 for storing ribbon 12 in pleated form. Ribbon 12 enters housing 11 between stripping fingers 13 and 14 and emerges under control of a cantilevered, spring-biased pressure pad 15. Ribbon 12 is in endless form and is fed into housing 11 by cooperative action of drive rolls 20 and pressure rolls 21. Fingers 13 and 14 flank rolls 21 and 20, respectively, when 10 is mounted on post 25. Housing 11 has channel 16 to facilitate mounting 10 on post 25 as in B. Housing 11 is located on 25 so that the pinch point between rolls 20 and 21 is within housing 11. Retractable pin 26 enters opening 17 to establish this relationship. Pin 26 is manually retractable by wire lever 27. Rolls 21 are carried in a pivotally mounted frame 22. The latter is spring-biased by a toggle spring, not shown, to be in pressure contact with 20. Handle 23 is attached to frame 22 to facilitate pivoting of rolls 21 out of cooperative relationship with 20 and thus permits easy insertion of ribbon 12. As ribbon 12 accumulates in 11, the accumulation offers a certain amount of resistance to the delivery of 12 by rolls 20 and 21. This resistance causes ribbon 12 to assume a pleated form in 11. Ribbon 12 tends to form small loops at the entry point. These loops become larger as they move toward the exit point. Fingers 13 and 14 function to strip ribbon 12 from rolls 20 and 21. Pressure pad 15 functions to maintain tension on th...