Drive mechanisms for inked ribbon cassettes

Details Drive mechanisms for inked ribbon cassettes Drive mechanisms for inked ribbon cassettes

1983-10-11

1985-08-13

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

4001961, B41J 3528, B41J 3328

Patent

active

045346674

ABSTRACT:
In a stuffed inked ribbon cassette in which ribbon in convoluted form in a stuffing chamber is withdrawn under tension from an outlet and returns along an inlet after passage past a printer, it has been found that a drive wheel having a ratchet tooth form gives surprisingly effective traction on the ribbon. The drive wheel may be used with an idler wheel having a ratchet tooth form or in another embodiment there may also be a simple opposed spring, the ribbon passing between the drive wheel and the idler wheel.

REFERENCES:
patent: 3830351 (1974-08-01), Cappotto
patent: 3897866 (1975-08-01), Mueller
patent: 3974906 (1976-08-01), Lee et al.
patent: 3980171 (1976-09-01), Frechette
IBM Tech. Disc. Bulletin, Hosie et al., "Packaging for Printer Ribbon Cartridges", vol. 24, No. 5, Oct. 1981, pp. 2518-2519.
IBM Tech. Disc. Bulletin, Bergacs et al., "Stuffer Gear Drive," vol. 25, No. 10, Mar. 1983, pp. 5085-5086.

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