Sheet material conveying device

Details Sheet material conveying device Sheet material conveying device

1985-02-26

1987-07-07

Reger, Duane A.

Sheet feeding or delivering

Feeding

With means to align sheet

271246, 271266, 271273, 198624, 198781, B65H 914

Patent

active

046781781

ABSTRACT:
A sheet material conveying device includes a feed roller assembly and a temporary hampering device disposed downstream of the roller assembly. The conveying device includes a driven shaft to be rotated by a driving source and a plurality of driven rollers mounted on the shaft. The driven rollers comprise at least one positively driven roller having a non-slip rotary connection with the driven shaft and at least one negatively driven roller having a slip connection with the driven shaft. The positively driven roller is mounted on the driven shaft so as to be rotated continuously with rotation of the driven shaft. The negatively driven roller has an inside diameter larger than the outside diameter of the driven shaft and is rotatably mounted on the driven shaft. When the forward movement of the sheet material fed by the feed roller assembly is hampered by the temporary hampering device, the rotation of the negatively driven roller is stopped by the resistance of the sheet material exerted on the negatively driven roller in spite of the continued rotation of driven shaft.

REFERENCES:
patent: 1067805 (1913-07-01), Diescher
patent: 4006815 (1977-02-01), Werntz
patent: 4266660 (1981-05-01), Herman
patent: 4337935 (1982-07-01), Sawada et al.
patent: 4505381 (1985-03-01), Major
Clark et al., Xerox Disclosure Journal, "Weighed Pinch Rolls", vol. 2, #6, 12/77, pp. 61-62.

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