Method and apparatus for storing flat-folded cases in a pile, an

Details Method and apparatus for storing flat-folded cases in a pile, an Method and apparatus for storing flat-folded cases in a pile, an

1990-05-29

1991-06-18

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Container making

Rigid container

493116, 493127, 493125, 493181, 493183, 493317, B31B 306, B31B 372, B31B 378

Patent

active

050246402

ABSTRACT:
A number of cases are stored horizontally in a stack in a magazine. A bottom upper-inner flap of a flat folded case is folded downward to open the case by a flap-folding member while the case is being lifted from a magazine station to a flap-folding station, and while attracted to and held by a suction cup. The case is opened during this lifting and folding step. Once the bottom upper-inner flap has been folded downward, it comes into the space between the bottom outer flaps. The bottom upper-inner flap, which has been folded downward, pushes the left outer flap during the lifting operation. As the case is lifted higher and higher, both outer side flaps are opened simultaneously. The case is therefore gradually opened, during lifting, thereby forming a hollow cylindrical case. The remianing bottom flaps are closed and then sealed.

REFERENCES:
patent: Re30921 (1982-05-01), McDowell
patent: 2706935 (1955-04-01), Pasjack
patent: 3420036 (1969-01-01), Hutchinson
patent: 3430948 (1969-03-01), Sage
patent: 3982474 (1976-09-01), Klund
patent: 4160406 (1979-07-01), Nowacki
patent: 4163414 (1979-08-01), Bachman et al.
patent: 4285682 (1981-08-01), Moss
patent: 4579551 (1986-04-01), Ulrich et al.
patent: 4627830 (1986-12-01), Smidt
Leaflet Concerning "Boxmaster", Published by Itoman Engineering Co., Ltd.
Leaflet Concerning "Carton Sealer SM11", Published by Kyowa Co., Ltd.

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