Feed roll assembly adapted for delivering sheet of paper in a fa

Details Feed roll assembly adapted for delivering sheet of paper in a fa Feed roll assembly adapted for delivering sheet of paper in a fa

1996-05-02

1997-05-20

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separator and conveyor

271116, 271314, 198577, B65H 500

Patent

active

056305800

ABSTRACT:
A feed roll assembly which includes an axle installed in for example a fax machine and having a noncircular extension rod at one end, a roll fixedly mounted around the axle in the middle and turned by it to delivery inserted sheet of paper, a coupling wheel coupled to the non-circular extension rod of the axle and turned with it, the coupling wheel having an outward flange at one end and a plurality of wedge-like grooves spaced around the periphery adjacent to the outward flange, a transmission gear revolvably mounted around the non-circular extension rod of the axle, and a spring movably mounted around the coupling wheel and stopped between the transmission gear and the outward flange of the coupling wheel and having a rear end moved in an arched groove in the transmission gear and a front end moved relative to the radially spaced wedge-like grooves of the coupling wheel, wherein the spring is compressed and coupled to the coupling wheel when the transmission gear is rotated forwards, thereby causing the coupling wheel to be driven by the transmission gear to turn the axle.

REFERENCES:
patent: 5116038 (1992-05-01), Kim
patent: 5141217 (1992-08-01), Tsao et al.
patent: 5169136 (1992-12-01), Yamagata et al.

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