Sheet folding apparatus and image forming apparatus

Details Sheet folding apparatus and image forming apparatus Sheet folding apparatus and image forming apparatus

1998-02-04

1999-12-21

Hail, III, Joseph J.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493435, 493419, B31F 114

Patent

active

060042540

ABSTRACT:
The present invention provides a sheet folding apparatus comprising a folding means for folding a sheet by feeding a folded portion of the sheet by a pair of rotary members, in which the folded portion of the sheet is passed through a nip between the pair of rotary members by plural times by rotating said pair of rotary members in normal and reverse directions alternately. It further comprises a switch-back control means for controlling so that a return speed of the sheet obtained by the pair of rotary members becomes slower than an advancing speed of the sheet.

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patent: 5709640 (1998-01-01), Timmermans et al.
patent: 5769404 (1998-06-01), Kanou et al.

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