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US 4,394,905 AGranted
Auto platform carton
AssigneeRobertson Paper Box Co., Inc.
InventorRobert A. Hackenberg
Life of this patent
Estimating the term…
Abstract
A folding auto platform carton having a lock bottom includes two similar platform sections which fold down with the bottom panels. When the carton is set up, each platform section forms with the underlying bottom panel a box girder which rigidifies the carton. Also abutting walls of the two box girders form a medial reinforcing and supporting rib extending all along the platform which prevents platform sag.
Claims14
A folding carton for containing fragile articles comprising
- A. four wall panels hinged together for collapsing into a flat structure and opening up to form a generally rectangular tube,
- B. a lock bottom for the carton, said bottom comprising
- (1) a pair of parallel, generally rectangular bottom panels hinged to one pair of opposite carton wall panels and extending between the other pair of opposite carton wall panels, and
- (2) a pair of gusset panels hinged to said other pair of wall panels and to the rectangular bottom panels, said bottom panels being foldable up inside the collapsed structure and opening out to occupy a substantially common plane perpendicular to the wall panels when the carton is set up, and
- C. a platform foldable up inside the collapsed structure and spaced above the carton bottom panels when the carton is set up, said platform comprising a pair of similar mating platform sections, each section including
- (1) a generally rectangular platform panel hinged at one edge to one panel in said first pair of wall panels, and
- (2) a support panel hinged to the opposite edge of said platform panel and also to the underlying rectangular bottom panel so that, when the carton is set up, the platform panels swing down into a substantially common plane above the plane of the bottom panels with the support panels abutting one another to form a medial reinforcing rib between the platform and the carton bottom all along the platform which inhibits platform sag and rigidifies the carton as a whole.
4 more elements
A collapsible carton comprising
- A. four wall panels hinged together to form a generally rectangular tube,
- B. a pair of generally rectangular bottom panels hinged to a first pair of opposite wall panels,
- C. a pair of gusset panels hinged to the other pair of opposite wall panels and to the rectangular panels so that when the wall panels assume their tubular form when the carton is set up, the bottom panels fold down so that they lie essentially in a common plane which is perpendicular to the planes of the wall panels,
- D. a foldable platform spaced above the carton bottom, said platform comprising a pair of similar sections, each section including a platform panel having one edge hinged to a panel of said first wall panel pair and a support panel hinged to the edge of the platform panel remote from its hinge connection to the wall panel, said support panel also being hinged to the rectangular bottom panel underlying said platform panel so that each platform section constitutes part of a box girder which extends between the other pair of carton wall panels when the carton is set up so as to prevent platform sag and to rigidify the carton as a whole.
1 more element
Dependencies are inferred from the claim text.