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US 5,295,631 AGranted
Container made from one-piece blank
AssigneeInland Container Corporation
InventorJack A. McClure
Life of this patent
Estimating the term…
Abstract
A carton with triple-thickness sidewalls formed from a one-piece unitary blank includes sidewalls and endwalls extending from a floor. Lid members extending from the endwalls cover the carton interior and arrangements for locking the lids in a closed position are provided. The sidewalls and endwalls are interlocked with a locking post arrangement to prevent pull-out.
Claims6
Carton apparatus having triple layer sidewalls formed from a one-piece blank, comprising:
- a floor panel having two pairs of opposed sides;
- a pair of opposed endwall panels hingedly connected to one pair of opposed sides of said floor panel, the endwall panels each having opposed sides;
- lid panels in serial succession with said end wall panels and said floor panel and hingedly connected to respective endwall panels along hinge lines so as to have free end portions with free edges remote from the respective endwall panels;
- a pair of outer sidewall panels hingedly connected to the remaining pair of opposed sides of said floor panel;
- reinforcing beams hingedly connected to said outer sidewall panels, extending between opposed sides of each said endwall panel, to reinforce the upper edges thereof;
- and
- a sidewall subassembly coupled to each side of said endwall panels, each sidewall subassembly comprising hingedly connected inner and intermediate side wall panels, with one of said inner and said intermediate side wall panels of each subassembly hingedly connected to a respective end wall panel side;
- a pair of locking tabs depending from the overlying lid panel free end portion and having lower edges extending at an acute angle from the overlying lid panel toward the overlying panel free edge;
- and
- locking tab engaging means on at least one of said inner, intermediate and outer sidewall panels, for engaging said locking tabs to hold said lid panels in a closed position enclosing the carton interior, said locking tab engaging means comprising slots formed in the reinforcing beams for receiving the locking tabs and for guiding the locking tabs between the outer and intermediate sidewalls.
7 more elements
Carton apparatus having triple layer sidewalls, formed from a one-piece blank, comprising:
- a floor panel having two pairs of opposed sides;
- a pair of opposed endwall panels hingedly connected to one pair of opposed sides of said floor panel, the endwall panels each having opposed sides;
- lid panels in serial succession with said end wall panels and said floor panel and hingedly connected to said endwall panels along hinge lines;
- a pair of outer sidewall panels hingedly connected to the remaining pair of opposed sides of said floor panel;
- and
- a sidewall subassembly coupled to each side of said endwall panels, each sidewall subassembly comprising hingedly connected inner and intermediate side wall panels, with one of said inner and said intermediate side wall panels of each subassembly hingedly connected to a respective end wall panel side;
- a pair of locking tabs depending from the overlying lid panel free end portion;
- and
- locking tab engaging means on at least one of said inner, intermediate and outer sidewall panels, for engaging said locking tabs to hold said lid panels in a closed position enclosing the carton interior, said locking tab engaging means comprising slots formed in the reinforcing beams for receiving the locking tabs and for guiding the locking tabs between the outer and intermediate sidewalls and a locking portion outwardly struck from an intermediate sidewall toward an outer sidewall;
- the inner and intermediate sidewall panels joined together along fold lines and the locking portion is formed by a generally V-shaped cut in the intermediate sidewall panel and having one end located adjacent the fold line, so that when the inner and intermediate sidewall panels are folded against one another, the locking portions are displaced out of the respective planes of the intermediate sidewall panels;
- said locking tabs comprising a protruding portion with a locking edge for engaging the locking portion.
8 more elements
Dependencies are inferred from the claim text.