Device for the temporary guidance of successively transported sh

Details Device for the temporary guidance of successively transported sh Device for the temporary guidance of successively transported sh

1996-10-25

1998-11-03

Bollinger, David H.

Sheet feeding or delivering

Feeding

By means to convey sheet

271197, B65H 502

Patent

active

058297405

ABSTRACT:
A device for the temporary guidance of successively transported sheets along a guiding surface defined by opposite side edges of a sheet, includes a sheet guiding element revolving in a given direction during operation. The guiding element has a groove oriented at least substantially in the given direction and the guiding element has at least one suction opening formed therein. The at least one suction opening has an aperture cross section in the groove to be temporarily covered by a sheet, and the at least one suction opening is subjected to a periodic underpressure exerting a suction effect on a sheet. Such a device exhibits good guiding characteristics at high sheet speeds.

REFERENCES:
patent: 1627966 (1927-05-01), Goodlett
patent: 3889801 (1975-06-01), Boyer
patent: 3942788 (1976-03-01), Boyle
patent: 4555013 (1985-11-01), Franklin

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