Ribbon cassette with swingable ribbon-guide arms

Details Ribbon cassette with swingable ribbon-guide arms Ribbon cassette with swingable ribbon-guide arms

1988-01-04

1989-09-19

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400248, B41J 3200

Patent

active

048675857

ABSTRACT:
A ribbon cassette for writing and/or printing machines, the ribbon cassette including a casing with an upper part, a lower part as well as two ribbon-guide arms extending substantially parallel to one another away from the casing, an ink ribbon, a feed spool, a take-up spool as well as a drive member controllable by the machine for the onward transport of the ink ribbon, in which the ribbon has a ribbon section running freely between the two ribbon-guide arms outside the casing, and in which the ribbon-guide arms are borne on the casing in such a way that the ink ribbon, for the selection of one of several writing tracks, is movable against the force of restoring springs perpendicular to the band longitudinal axis in the ribbon plane of the ribbon section. The ribbon-guide arms are tied over film hinges in one piece to the casing. Preferably, each ribbon-guide arm is tied over two film hinges laterally spaced from one another to the casing lower part, and each restoring spring is constructed as a V-shaped or U-shaped band spring.

REFERENCES:
patent: Re31117 (1983-01-01), Depew
patent: 3643777 (1972-02-01), Anderson et al.
patent: 3899065 (1975-08-01), Brignole
patent: 4175877 (1979-11-01), Randolph
patent: 4728207 (1988-03-01), Foster
patent: 4729677 (1988-03-01), Dirla et al.

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