Ink ribbon cartridge for printer

Details Ink ribbon cartridge for printer Ink ribbon cartridge for printer

1997-06-24

1999-02-02

Burr, Edgar

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400208, B41J 3528

Patent

active

058655450

ABSTRACT:
An ink ribbon cartridge for a printer according to the present invention is one in which drive side shaft portions and driven side shaft portions of a ribbon supplying spool shaft wound up with an unused ribbon and a ribbon take-up spool shaft for winding a used ribbon are rotatably received respectively by drive side bearing means and driven side bearing means of a housing formed of only a lower shell. The drive side bearing means have U-letter shaped drive side bearing portions having shaft disengagement stopping portions at opening portions into which the drive side shaft portions are inserted from the top, flange receiving portions at the outside of the bearing portions on the same plane for receiving flanges of the drive side shaft portions, and slits formed with upper portions cut off and between the drive side bearing portions and the flange receiving portions making the drive side bearing portions capable of being elastically deformed toward the slits. The driven side bearing means form U-letter shaped driven side bearing portions having shaft disengagement stopping portions at opening portions into which the driven side shaft portions are inserted from the top, and spool pushing springs located at the back of the driven side shaft receiving portions.

REFERENCES:
patent: 5352049 (1994-10-01), Shiraishi et al.
patent: 5455617 (1995-10-01), Stepheson et al.
patent: 5492422 (1996-02-01), Kondo
patent: 5547298 (1996-08-01), Wouters et al.
patent: 5695292 (1997-12-01), Coote

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