Self-locking carton

A compartmented carton comprising a pair of opposed side walls, a pair of opposed end walls connecting the side walls, a bottom closure, a top closure and compartmenting means for dividing the interior of the carton into a plurality of laterally separate compartments, said bottom closure comprising bottom end flaps integrally connected to the bottom edges of said end walls and foldable upward, each of said bottom end flaps having at least one longitudinal opening extending from the bottom edge of the respective end wall only part way to the outer end thereof, said bottom end flaps having transverse fold lines intersecting the respective longitudinal openings therein for permitting the portion outwardly thereof to be folded upwardly, the bottom side flaps integrally connected to the bottom edges of said side walls and foldable upward, each of said bottom side flaps extending more than one-half the width of the carton and having at least one transverse opening extending inward a short distance from the outer end thereof and having a longitudinal fold line whereby the outer portions of said bottom side flaps may be folded upwardly into the container, the transverse openings in said bottom side flaps being coincident with the respective ones of the fold line in said bottom end flaps and the fold lines in said bottom side flaps being coincident with respective said bottom end flap longitudinal openings such that the outer portions of said bottom side flaps may be folded upwardly and extended into the container through said bottom end flap openings in interlocking relation therewith, said top closure comprising to end flaps integrally connected to the top edges of said end walls and foldable downward, each of said top end flaps having at least one longitudinal opening extending from the top edge of the respective end wall only part way to the outer end thereof, transverse fold lines intersecting the respective longitudinal openings therein for permitting the portion outwardly thereof to be folded downwardly, and top side flaps integrally connected to the top edges of said side walls and foldable downward, each of said top side flaps extending more than one-half the width of the carton and having at least one transverse opening extending inward a short distance from the outer end thereof and having a longitudinal fold line whereby the outer portion of said top side flaps may be folded downwardly into the container, the transverse openings in said top side flaps being coincident with the respective ones of the fold lines in said top end flaps and the fold lines in said top side flaps being coincident with respective said top end flap longitudinal openings such that the outer portions of said top side flaps may be folded downwardly and extended into the container through said top end flap openings in interlocking relation therewith, said compartmenting means including said outer portions of said bottom end and side flaps and said outer portions of said top end and side flaps extending respectively upward and downward into the container.