Sheet folding apparatus

Details Sheet folding apparatus Sheet folding apparatus

1989-05-23

1991-03-05

Look, Edward K.

Sheet-material associating

Associating and folding

Sheet associating

493419, B42C 100

Patent

active

049971751

ABSTRACT:
A sheet folding apparatus comprises a feed roller mechanism consisting of a pair of roller adapted to feed a sheet clamped therebetween, a working roller mechanism mounted on the outlet side of the feed roller mechanism consisting of a central roller, a press roller in press contact with one side of the central roller, and a shift press roller in press contact with the other side of the central roller, and a shift guide mechanism mounted between the feed roller mechanism and the working roller mechanism. The shift press roller of the working roller mechanism is held for shifting movement between a first or access position where it is opposed to the press roller and a second or shifted position where it is in press contact with the other side of the central roller, along an outer peripheral surface of the central roller in a condition remaining in press contact with the central roller. The shift guide mechanism includes a pair of guide plates defining a sheet passage, and is shiftable between a normal position and a shifted position in operative association with the shift press roller. The apparatus can fold a sheet a plurality of times.

REFERENCES:
patent: 4202621 (1980-05-01), Yoshimura
patent: 4403981 (1983-09-01), Wathrich

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