Cassette type ink ribbon device

Details Cassette type ink ribbon device Cassette type ink ribbon device

1980-09-23

1982-10-05

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Endless ribbon or cartridge therefor

400208, 4002024, 226118, B41J 3202, B41J 3116

Patent

active

043525776

ABSTRACT:
A cassette type ink ribbon device for use in printing apparatus comprises a pair of cassette cases releasably connected together by mutually engaging pawls. The connected together cassette cases contain ink and transfer rollers for inking an ink ribbon, and a tensioner for applying a tensioning force to the ink ribbon. The tensioner comprises a slidable guide body having a cavity in which the slack part of the ink ribbon is stored, and a biasing spring which biases the guide body in a direction to apply the tensioning force to the ink ribbon. Both cassette cases may have the same shape and configuration thereby simplifying manufacturing costs.

REFERENCES:
patent: 2165739 (1939-07-01), Verkinderen
patent: 2544362 (1951-03-01), Selzer
patent: 2873015 (1959-02-01), Gray
patent: 3621968 (1971-11-01), Kondur
patent: 3861611 (1975-01-01), Gsashi et al.
patent: 3924727 (1975-12-01), Morelli
patent: 3945582 (1976-03-01), Yagi et al.
patent: 3994577 (1976-11-01), Yamada et al.
patent: 4020999 (1977-05-01), Camras
patent: 4046247 (1977-09-01), La Spesa et al.
patent: 4071133 (1978-01-01), Scherrer et al.
patent: 4175877 (1979-11-01), Randolph

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