초록

Container having a tubular main body consisting of a plurality of rectangular panels hinged together to give a polygonal cross-section, which body can be collapsed to a flat condition.

대표청구항 ▼

Container, comprising: (a) a main body consisting of an even number of rectangular panels hingedly connected along hinge lines seriatim to form a tube, the body being foldable flat along opposite hinge lines to define a plane, (b) a bottom panel having the form of a regular polygon having the said e

Container, comprising: (a) a main body consisting of an even number of rectangular panels hingedly connected along hinge lines seriatim to form a tube, the body being foldable flat along opposite hinge lines to define a plane, (b) a bottom panel having the form of a regular polygon having the said even number of edges, one edge of the bottom panel being hingedly connected to the bottom edge of a first one of the panels, the said first one of the panels being located between the said opposite hinge lines, so that the bottom panel can be folded into the plane in the interior of the main body when it is folded, (c) a locking tab hingedly attached to the bottom edge of a second one of the panels, the locking tab having a fold line extending across its mid-point to divide it into a free portion and a glue portion, the glue portion being adapted to be permanently attached to the bottom panel with the fold line lying in the said plane, (d) a web element adjacent each of said opposite hinge lines consisting of two generally triangular tabs hingedly connected to the bottom edges of the two adjacent panels which extend along the opposite hinge line, one of the tabs having a glue extension for permanent attachment to the other tab, and (e) said locking tab being formed with a concave curved edge facing each of the said web elements and each of said web elements being provided with a convex curved edge that conforms to the adjacent concave edge of the locking tab, so that the locking tab and the web elements lie substantially in the same plane under the bottom panel and provide a substantially continuous support for the bottom panel.