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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 gird

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.

대표청구항 ▼

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 panel

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.