Package making – Methods – Envelope or triangular flap fold
Patent
1991-05-29
1992-06-30
Coan, James F.
Package making
Methods
Envelope or triangular flap fold
532843, 533816, B65B 3540, B65B 500
Patent
active
051252147
ABSTRACT:
An inserter station for inserting inserts into envelopes comprises an insert conveyor for conveying inserts to an inserting location, a gripper drum for delivering envelopes to the inserting location, vacuum means for holding bottom surfaces of envelopes, suction cups for lifting top sides and opening envelopes, and an insert pusher for pushing inserts into opened envelopes. The insert pusher moves along a noose-shaped path in a vertical plane. The path has a horizontal, forwardly-directed portion along which the pusher moves to engage and push inserts into evelopes. The path has a retracting portion that curves downwardly and backwardly out of the way of envelopes and inserts being provided to the inserting location. In operation, an envelope is delivered to the inserting location and has its bottom surface held by vacuum applied thereto. The top side of the envelope is lifted by suction cups so that the envelope is opened to receive inserts. Inserts that are conveyed toward the inserting location are engaged at their trailing edges by the insert pusher and are pushed into the opened envelope.
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Belec Eric A.
Fallos George
Hawkes Richard B.
Lee, Jr. James S.
Noll, Jr. Harry C.
Bell & Howell Company
Coan James F.
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