Ribbon cartridge retention

Details Ribbon cartridge retention Ribbon cartridge retention

1984-06-05

1986-11-25

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

4001961, B41J 3200

Patent

active

046245928

ABSTRACT:
For the retention of a ribbon cartridge (1) on a carrier (2) in a printer or a typewriter or the like, a flexible retaining arm (3) is disclosed. This retaining arm (3) is attached to carrier (2) and stands upright from it. Arm (3) includes a protruding leg (12) underneath cartridge (1) and a tenon (8) adapted to snap back into a recess (7) in cartridge (1) after deflection of retaining arm (3). On its opposite side cartridge (1) is supported with its trunnion (5) in a hole in a fixed retaining arm (6) of carrier (2). Trunnion (5) and tenon (8) are arranged on tilting axis (4) which is parallel to the print line. Upon loading cartridge (1) on carrier (2) protruding leg (12) is biased so that upon removal of cartridge (1) protruding leg (12) urges cartridge (1) upwardly. Retaining arm (3) with its protruding leg (12) is made of spring steel in leaf spring form.

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