Wobble-wheel type sheet shingler and deshingler

Details Wobble-wheel type sheet shingler and deshingler Wobble-wheel type sheet shingler and deshingler

B - Operations, Transporting

65

H

270/118

B65H 3/02 (2006.01) B65H 3/06 (2006.01)

Patent

CA 1072593

ABSTRACT OF THE DISCLOSURE An improved apparatus for successively separating and feeding sheets from a stack of sheets is disclosed. A wave generator wheel, rotating in a plane generally parallel to the stack, and about a tiltable axis generally perpendicular to the stack, is tiltable in a first direction to contact the stack for shingling the stack, and in a second direction to the contact the stack for restoring the stack to its un- shingled state. Sheets in a stack are driven forward or rearward by simply tilting the rotating wheel. The wave generator wheel is controlled by an open-loop or closed-loop control arrangement to first drive the stack's top sheet away from a feed nip, and to then drive the stack's top sheet into the feed nip. Instead of tilting the wheel, the wheel can be in the form of rollers connected to a disk via flexible spokes which are depressed to contact and drive the stack's top sheet.

319173

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