초록 ▼

A blank of suitable materials such as corrugated paper board of generally rectangular configuration is provided with two fold lines spaced equally from opposite long edges of the blank and is provided with three fold lines spaced equally from each of the short ends of the blank with the spacing of t

A blank of suitable materials such as corrugated paper board of generally rectangular configuration is provided with two fold lines spaced equally from opposite long edges of the blank and is provided with three fold lines spaced equally from each of the short ends of the blank with the spacing of the fold lines determining the depth of the carton to be produced. A pair of spaced fold lines are provided adjacent to the middle portion of the blank at right angles to the long edges thereof and spaced at the same distance as the other fold lines to provide the back for the carton and to provide along one edge thereof a hinge line for the top of the carton. Certain of the fold lines are cut to provide tabs and each short side of the blank is provided with spaced tabs to lock the components of the carton together in assembled condition. At least six cartons of variable sizes may be folded from the carton blank.

대표청구항 ▼

A carton blank comprising a rectangular sheet of foldable material having spaced parallel first edges and spaced parallel second edges at right angles thereto, first spaced tabs extending from each of said second edges, first, second and third spacEd parallel fold lines parallel to each of said seco

A carton blank comprising a rectangular sheet of foldable material having spaced parallel first edges and spaced parallel second edges at right angles thereto, first spaced tabs extending from each of said second edges, first, second and third spacEd parallel fold lines parallel to each of said second edges in said sheet, second spaced tabs in each of said first fold lines, first spaced slots in each of said second fold lines to receive said first spaced tabs, second spaced slots adjacent to said third fold lines to receive said second spaced tabs, fourth and fifth spaced parallel fold lines in said sheet parallel to each of said first edges, a sixth fold line in said sheet parallel to said second edges forming the rear bottom edge of the completed carton, a seventh fold line in said sheet spaced from and parallel to said sixth fold line forming the upper rear edge of the top of the completed carton, a first tab in said sheet disposed at one end and a second tab disposed at the other end of each of said fourth fold lines foldable about said second fold line and tabs in said sheet at each end of said sixth fold line foldable about said seventh fold line, said sixth and seventh fold lines being spaced from each other a distance substantially equal to the depth of the completed carton, each of said fourth fold lines including first and second end portions conditioned to be separated, said carton blank being foldable into at least first and second configurations of different size, in said first, relatively large configuration said carton blank being folded about its first and second fold lines, in said second, relatively small configuration said blank being folded about said first, second and third fold lines and said first and second end portions being separated to form larger first and second tabs.