Method and apparatus to open folded sheets or packages of sheets

Details Method and apparatus to open folded sheets or packages of sheets Method and apparatus to open folded sheets or packages of sheets

1993-07-13

1995-02-14

Look, Edward K.

Sheet-material associating

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B65H 530

Patent

active

053888162

ABSTRACT:
Folding and transport devices wherein the crease of a folded sheet (5) does not extend completely over the length of the fold so that an open loop is formed at one end of the crease. Fingers (25 to 28) can be laterally inserted into the open loop in order to be able to open the folded sheets (5) again without a side fold strip. The folded sheets (5) are normally conveyed to designated positions, but they are opened while their conveyance is halted, so that there is sufficient time for opening them. The folded sheets (5) are opened by insertion needles (16) and V-shaped opening plates (19) while they are simultaneously kept in alignment by stops (14) and grasped by grippers (18).

REFERENCES:
patent: 3420516 (1969-01-01), Guggisberg
patent: 3450400 (1969-06-01), Guggisberg
patent: 4840365 (1989-06-01), Kobler et al.
patent: 5050851 (1991-09-01), Eugster
patent: 5065994 (1991-11-01), Hatt
patent: 5129781 (1992-07-01), Petersen
patent: 5165674 (1992-11-01), Petersen

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