Triangular carton, blank, and method

A carton sidewall blank formed of a sheet of material being cut and scored and adapted to be assembled to define a tubular carton sidewall having generally triangular cross-sectional shape, and further adapted to be combined with at least one separately formed, generally triangular end closure panel to define a generally triangular prismatic carton, the triangular prismatic carton being adapted to carry a plurality of like objects having a generally circular cross-sectional shape, the blank comprising:

• a generally rectangular main portion for forming the tubular sidewall;
• a first fold line parallel to a first edge of the main portion defining a first folding strip along said first edge;
• a plurality of score lines within said first folding strip running perpendicular to said first and second fold lines;
• said plurality of score lines arranged to facilitate bending said sidewall blank to form said tubular carton sidewall wherein said tubular carton sidewall has three planar sidewall surfaces wherein each planar sidewall surfaces is adjoined to an adjacent planar sidewall surface via a curved sidewall surface having a radius of curvature approximately equal to a radius of curvature of said objects to be carried.

A method of forming a generally triangular prismatic carton adapted to carry a plurality of like objects having a generally circular cross-sectional shape, the method comprising:

• forming sidewall blank from a sheet of material comprising a generally rectangular main portion for forming the tubular sidewall;
• scoring a first fold line on the main portion parallel to a first edge of the main portion, the fold line defining a first folding strip along said first edge;
• and
• scoring a plurality of score lines within said first folding strip running perpendicular to said first and second fold lines;
• bending said sidewall blank into a tubular carton sidewall having three planar sidewall surfaces wherein each planar sidewall surfaces is adjoined to an adjacent planar sidewall surface via a curved sidewall surface having a radius of curvature approximately equal to a radius of curvature of said objects to be carried;
• said plurality of score lines arranged to facilitate said bending;
• closing an end of said tubular carton sidewall by attaching a separately formed, generally triangular panel.