Polygonal carton with bottom reinforcement and blank therefor

Details Polygonal carton with bottom reinforcement and blank therefor Polygonal carton with bottom reinforcement and blank therefor

1976-09-01

1977-12-27

Moorhead, Davis T.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 39R, B65D 510, B65D 536

Patent

active

040650472

ABSTRACT:
The polygonal carton is constructed from a unitary blank of stiff but foldable material and has a reinforced bottom. The blank includes two blank portions divided into at least two, rectangular, side-forming panels. A rectangular webbing is hingedly connected to each blank along a side thereof which is perpendicular to a score line separating the side-forming panels. A line separates the webbings and a portion of the blank along that line is cut and another portion of the blank along that line is scored to form a fold line between the webbings. Each webbing has a plurality of triangular bottom-forming panels therein, each hingedly connected to one of the side-forming panels and a plurality of webs, each extending between and hingedly interconnecting an adjacent pair of bottom-forming panels. Each web has a fold line therein. When the blank is folded into a carton, each web is folded approximately 180.degree. at the fold line to form a reinforcing rib and at least one of the fold lines in one of the folded webs then extends along a web which is parallel to the folded side panels and extends downwardly from a junction between two triangular bottom panels interconnected by that web. With this construction, a load which is placed on the bottom and which urges the bottom panels downwardly is supported by the locking and bearing engagement between the abutting edges of the bottom panels and by the reinforcing ribs formed by the folded interconnecting webs.

REFERENCES:
patent: 2483464 (1949-10-01), Johnson
patent: 2922562 (1960-01-01), Pellaton
patent: 3000496 (1961-09-01), Larson
patent: 3526352 (1970-09-01), Swett
patent: 3563448 (1969-10-01), Croley
patent: 3901431 (1975-08-01), Carlson
patent: 3941300 (1976-03-01), Troth
patent: 3977594 (1976-08-01), Swan

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