Sheet-material associating – Associating and folding – Sheet associating
Patent
1985-08-23
1987-07-28
Eickholt, E. H.
Sheet-material associating
Associating and folding
Sheet associating
198462, 271202, B41C 100
Patent
active
046827676
ABSTRACT:
An apparatus for folding and shingling sheets in which the sheets, upon exiting the printing operation, enter a controlled slow-down section between a series of high-speed, face-to-face belts. The sheets exit these belts and are decelerated by the action of a snubber means trapping the sheets against a series of slower-speed belts and underlying deck plate. Having been slowed down, the sheets abut a stop member wherein a chopper blade impacts the centerline of the sheet thereby driving the sheet through a slot in the deck plate and into the grasp of a pair of biased, impinging nip rollers. The nip rollers crease the fold created by the chopper blade and accelerate the sheets into a second series of high-speed, face-to-face belts. These belts deliver the folded sheets to a second slow-down section wherein a second snubber means decelerates the sheets by trapping them against a slower-speed belt. The snubber means, in conjunction with the speed of the delivered sheets, causes each sheet to partially overlap the previous sheet thereby shingling the sheets for delivery to a subsequent counting and stacking operation.
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