Ribbon lift and feed mechanism for a typewriter

Details Ribbon lift and feed mechanism for a typewriter Ribbon lift and feed mechanism for a typewriter

1981-09-25

1983-08-09

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400211, 400217, 400225, 400248, 4006971, B41J 3200, B41J 3334, B41J 3304

Patent

active

043975755

ABSTRACT:
A ribbon lift and feed mechanism for a typewriter/printer (10) in which the print ribbon cartridge (15) has deflectable arms (16a, 16b) for placing the ribbon (13) in a position confronting the platen (11) of the typewriter (10). On the platform (40), supporting the ribbon cartridge (15), is a shuttle (50) which is remotely oscillated as by a drive motor (90) on the frame (12) of the typewriter (10). Translation of the shuttle (50) and the cam (66) associated with the shuttle (50) effects movement of cam follower (66a) engageable with the cam (66), causing the deflectable arms (16a, 16b) of the cartridge (15) to oscillate between a rest and elevated position to place different portions of the print ribbon (13) intermediate the type element (23) and the platen (11). The shuttle (50) also carries ribbon feed drive means (85) which cause an incremental feed of the ribbon (13) after the ribbon has been struck at multiple elevated positions. Moreover, by placing a correction ribbon cartridge (30) beneath the ribbon cartridge (15), another cam (70) on the shuttle can effect platform (40) elevation when it is desired to dispose the correction ribbon (30) intermediate the printing element (23) and the platen (11). This action occurs as a result of the oscillation of the shuttle (50).

REFERENCES:
patent: 2048188 (1936-07-01), Clarkson-Jones
patent: 3939957 (1976-02-01), Bittner
patent: 4242005 (1980-12-01), Kondur, Jr.
patent: 4297043 (1981-10-01), Dargatz
patent: 4329072 (1982-05-01), Kacmarcik
Goff et al., "Printer Ribbon Lift Means", IBM Technical Disclosure Bulletin, vol. 24, No. 3, pp. 1603-1604, 8/81.
Reed, "Ribbon Feeding Device", IBM Technical Disclosure Bulletin, vol. 2, No. 5, p. 5, 2/60.

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