Ribbon cartridge for printing machines and mechanism for feeding

Details Ribbon cartridge for printing machines and mechanism for feeding Ribbon cartridge for printing machines and mechanism for feeding

1977-12-22

1980-11-11

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Endless ribbon or cartridge therefor

400195, 400229, 4002351, B41J 3310

Patent

active

042329760

ABSTRACT:
A cartridge for an inked ribbon for printing machines, in particular wire printers, comprises a container and a pair of rollers for the feeding of the ribbon. The container comprises a storage zone, in which an inked ribbon is disposed in loops and is distributed at random, and a guide zone which surrounds the printing head of the machine. The guide zone comprises a series of ribs which twists a section of the inked ribbon through 180.degree. to form a Mobius loop. The rollers are free to move radially in corresponding seats of the container and are able to engage a pair of pins of the machine. One pin is a motor pin and rotates one of the rollers, and the other pin is a pressure pin which engages the other roller and is urged by a spring against the motor pin. The pressure pin causes the ribbon to be nipped between the two rollers to be fed by the motor pin.

REFERENCES:
patent: 3349887 (1967-10-01), Goff
patent: 3604549 (1971-09-01), Caudill et al.
patent: 3758012 (1973-09-01), Bonner et al.
patent: 3841459 (1974-10-01), Buschmann et al.
patent: 3904018 (1975-09-01), Denley
patent: 3939957 (1976-02-01), Bittner
patent: 3973707 (1976-08-01), Pratt et al.
patent: 3981387 (1976-09-01), Gottschlich
patent: 3989132 (1976-11-01), Carson
patent: 3994383 (1976-11-01), Best
patent: 4051944 (1977-10-01), Starr
IBM Technical Disclosure Bulletin, "Ribbon Drive", Cross, vol. 15, No. 7, Dec. 1972, p. 2312.

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