Ribbon feed device

Details Ribbon feed device Ribbon feed device

1987-03-30

1988-08-09

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

400232, 74812, 74354, B41J 3322, B41J 3336

Patent

active

047624345

ABSTRACT:
A ribbon feed device includes; a drive gear capable of rotating about a first shaft in clockwise and counter-clockwise directions by a rotation force transmitted from a drive source; a ribbon feed gear for feeding an ink ribbon capable of rotating about a second shaft; and an intermediate gear which swings about the first shaft while meshing with the drive gear, meshes with the ribbon feed gear at a first position during the rotation of the drive gear in the clockwise direction, meshes with the ribbon feed gear at a second position during the rotation of the drive gear in the counter-clockwise direction, and renders the ribbon feed gear rotate always in the same direction irrespective of the rotation direction of the drive gear.

REFERENCES:
patent: 4572027 (1986-02-01), Lusk

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