Sheet feeder for feeding continuous print paper having sprocket

Details Sheet feeder for feeding continuous print paper having sprocket Sheet feeder for feeding continuous print paper having sprocket

1988-05-05

1991-06-11

Stodola, Daniel P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

4006161, B65H 2020, G03B 1100

Patent

active

050225782

ABSTRACT:
A sheet feeder for feeding continuous printing paper having sprocket holes includes a pair of frames, a drive gear and a guide gear interposed therebetween, and a pin tractor belt extending between the drive gear and the guide gear. The drive gear and the guide gear respectively have flanges at the both ends thereof for tightly holding the pin tractor belt. A guide roller is interposed between the drive gear and the guide gear and is rotatably supported by one of the frames. The pin tractor belt smoothly travels over the guide roller. The pin tractor belt has a plurality of pins provided at an upper surface thereof to be engaged with sprocket holes of continuous printing paper for feeding the continuous printing paper. Inasmuch as the upper surface of the pin tractor belt projects above the upper surfaces of the frames, the continuous printing paper is fed without contacting the frames.

REFERENCES:
patent: 3825162 (1974-07-01), Hubbard
patent: 3978693 (1976-09-01), Worst
patent: 4129239 (1978-12-01), Hubbard
patent: 4159794 (1979-07-01), Seitz
patent: 4194660 (1980-03-01), Seitz
patent: 4199091 (1980-04-01), Hubbard
patent: 4372440 (1983-02-01), Ringus
patent: 4611737 (1986-09-01), Hubbard et al.
patent: 4723697 (1988-02-01), Tano et al.
patent: 4773579 (1988-09-01), Umuma
patent: 4789088 (1988-12-01), Unama et al.

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