Fold-out carton and blank therefor

Details Fold-out carton and blank therefor Fold-out carton and blank therefor

1991-04-29

1992-11-10

Foster, Jimmy G.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Lifting or suspending element

206170, 206180, 229185, B65D 7170

Patent

active

051617323

ABSTRACT:
A paperboard carton having an improved locking bottom. The disclosed carton has a collapsed position and an expanded position. In its expanded position, it has a square flat bottom which includes four flaps. A first pair of floor flaps, foldably attached along the bottom edges of opposite sidewalls have tabs which interlock when the carton is in the expanded position. The second pair of floor flaps, foldably attached along the bottom edges of the remaining opposite sidewalls, are relatively large and overlie the first pair of flaps and overlap each other when the carton is in the expanded position. Each of the first pair of floor flaps is divided into two sections by a foldline when extends from a corner of the expanded carton. For each such flap, there is a first section, adjacent one of the remaining pair of floor flaps and glued to its underside so that the floor flaps are sandwiched up between the sidewalls of the collapsed carton and such that when the carton is unfolded from its collapsed to expanded position, the floor flaps unfold synchronously. The interlocking tabs have edges located to abut each other as the flaps of the expanded carton are forced out of their flat position. The abutment thus tends to hold the carton floor and sidewalls in the expanded position. The floor flaps are shaped to ensure that as the carton is unfolded each non-interlocking floor flap unfolds to overlie the neighboring flap to which it is not glued. The carton sidewalls also have upper portions defined above horziontal cuts in the sidewalls, which portions fold inwardly from corners of the carton towards the center of the carton to form upwardly open bottle receiving compartments. Apertures in the upper portions provide handles for carrying the carton.

REFERENCES:
patent: 2659526 (1953-11-01), Buttery
patent: 2677495 (1954-05-01), Buttery
patent: 2760709 (1956-08-01), Bruehl et al.
patent: 2798656 (1957-07-01), Kuchenbecker
patent: 2881946 (1959-04-01), Bosrock et al.
patent: 2884180 (1959-04-01), Inman
patent: 2943780 (1960-07-01), Bolding
patent: 3057535 (1962-10-01), Thompson
patent: 4312446 (1982-01-01), Summers
patent: 4838414 (1989-06-01), Blackman

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