Typewriting machines – Sheet or web – For feeding plural record media concurrently or selectively
Patent
1988-09-19
1990-06-26
Wiecking, David A
Typewriting machines
Sheet or web
For feeding plural record media concurrently or selectively
4006162, 74470, B41J 1150
Patent
active
049366955
ABSTRACT:
A paper handling device including a first gear attached to a first paper feed device, such as a platen, and engaging a driving pinion; a second gear attached to a second paper feed device, such as a tractor unit, located in a plane including the first gear, and separated from the first gear; an operating shaft rotatably extended in parallel to the respective axes of the first and second gears; an active swing arm fixedly mounted on the operating shaft; a passive swing arm mounted on the operating shaft for free swing motion relative to the operating shaft; an idle gear pivotally supported on the free end of the passive swing arm and capable of engaging both the first and second gears; and an elastic member interconnecting the active swing arm and the passive swing arm. The idle gear is caused to engage both the first and second gears securely and properly by the agency of the elastic member or to be disengaged from both the first and second gears for selectively driving the first paper feed means or the second paper feed means.
REFERENCES:
patent: 2115849 (1938-05-01), Gustavson
patent: 2701479 (1955-02-01), Kuntny
patent: 3646832 (1972-03-01), Hirafuji
patent: 3961542 (1976-06-01), Fulghum et al.
patent: 4360279 (1982-11-01), Sugiura
patent: 4572418 (1986-01-01), Hirata
patent: 4688957 (1987-08-01), Prevignano
patent: 4722624 (1988-02-01), Musso
Tokyo Electric Co. Ltd.
Wiecking David A
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