Tubular carton having triangular corner panels

Abstract

A carton comprises top and bottom walls connected together by first and second spaced side walls to form a tubular structure. A set of end closure elements is disposed at each end of the tubular structure to close that end. Each set of end closure elements comprises major and minor end flaps and a web panel. The minor end flap is joined to one of the top and bottom walls and is disposed at a right angle with respect to the axis of the tubular structure. The major end flap is joined to the first side wall and is disposed in overlapping relationship with the minor end flap. The web panel interconnects the major and minor end flaps and is tucked in between the major and minor end flaps. The corner of the first side wall that is defined between the major end flap and the one wall to which the minor flap is joined is bevelled and is severed from the adjacent portions of the carton. The junction between the minor end flap and the one wall comprises a single fold line extending from the second side wall toward the first side wall. The single fold line bifurcates into two branch fold lines at an intermediate point between the first and second side panels. These branch fold lines extend from the intermediate point to the bevelled corner of the first side wall so that a triangular corner panel is defined between the branch fold lines.

Dependencies are inferred from the claim text.