Sheet folding apparatus

Details Sheet folding apparatus Sheet folding apparatus

2006-10-17

2006-10-17

Tawfik, Sameh H. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

C493S424000, C493S425000, C493S431000

Reexamination Certificate

active

07121993

ABSTRACT:
A sheet folding apparatus for folding a set of sheets into two at a center thereof, includes: a sheet number recognition section that recognizes the number of sheets in the set; a pair of rotating rollers pressed against each other to form a nip portion; a blade member retractably moves with respect to the nip portion; and a blade member control section that controls the blade member to move toward the nip portion to push the set of sheets in the nip portion at a depth corresponding to the number of sheets recognized by the sheet number recognition unit.

REFERENCES:
patent: 4053150 (1977-10-01), Lane
patent: 4452597 (1984-06-01), Achelpohl
patent: 4643705 (1987-02-01), Bober
patent: 5842964 (1998-12-01), Huber et al.
patent: 6022011 (2000-02-01), Hirose
patent: 6568668 (2003-05-01), Wakabayashi et al.
patent: 6602177 (2003-08-01), Muir
patent: 6939283 (2005-09-01), Sparano et al.
patent: 2001-146363 (2001-05-01), None

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