An end closure design for a paperboard container having four or more end panels that form the end closure hingedly joined respectively to four side panels connected to each other by parallel, spaced apart fold lines. Each of the hinged end panels has a straight free edge parallel the hinged edge and
An end closure design for a paperboard container having four or more end panels that form the end closure hingedly joined respectively to four side panels connected to each other by parallel, spaced apart fold lines. Each of the hinged end panels has a straight free edge parallel the hinged edge and each free edge has two spaced apart notches of the same shape and size cut therein, each positioned the same distance from the parallel, spaced apart fold lines such that when the panels are folded over, a notch from each end panel interlocks with a notch from an adjacent end panel. An opposing two of the hinged end panels also include two diagonal score lines, each extending from an interior edge of the notches to the interior corner formed by the fold lines between the end closure panel and its respective side panel. To form the end closure, the end closure panels without the diagonal score lines are folded inwardly, then the end closure panels with the diagonal score lines are folded inwardly. Pressure is applied (by pushing) to the central portion of the two panels with score lines between the score lines to cause adjacent and overlapping notches to interlock to form the end closure. The resulting container has an end with a central open area and four interlocked notches at the open area's corners.
대표청구항▼
We claim: 1. A carton comprising a plurality of side panels hingedly joined together by parallel fold lines, and end panels where each of said end panels is hingedly joined along a hinged edge thereof to one of said side panels, respectively, by a second fold line substantially perpendicular to the
We claim: 1. A carton comprising a plurality of side panels hingedly joined together by parallel fold lines, and end panels where each of said end panels is hingedly joined along a hinged edge thereof to one of said side panels, respectively, by a second fold line substantially perpendicular to the parallel fold lines, said end panels each having a free edge opposite said hinged edge, and a locking mechanism comprising two notches formed in said free edge of each panel of two opposed pairs of the end panels, each of the notches being positioned in the free edge an equal distance from one of the parallel fold lines closest to a respective one of the notches, such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form double-notch locking junctions, said end panels remaining substantially planar during and after folding of the end panels to interlock them together, wherein the notches are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of two opposed pairs of said end panels, each mouth being wider than a base thereof each of said notches. 2. The carton of claim 1, wherein each of the notches are the same size. 3. The carton of claim 2, wherein the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels. 4. The carton of claim 3, wherein the notches are formed only in four of the end panels, such that each of the end panels having the notches opposes another of the end panels having the notches. 5. The carton of claim 4, further comprising a diagonal score line extending from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the second fold line to facilitate interlocking of the notches. 6. The carton of claim 5, wherein four double-notch locking junctions are formed when the end panels are folded and interlocked, and the carton comprises a central open area having corners formed by the four double-notch locking junctions. 7. The carton of claim 5, wherein each of the notches has an outer width of 1.5 to 3 inches. 8. An end closure system for a carton having side panels hingedly joined together by parallel fold lines, and end panels hingedly joined to the side panels, the end panels each being substantially planar and having a free edge and a hinged edge foldably attached to the side panels, the system comprising two notches of equal size formed in the free edge of each of four opposing said end panels, each of the notches being spaced an equal distance from a respective closest one of the parallel fold lines forming an adjacent one of the side panels such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form four double-notch locking junctions, said end panels remaining substantially planar during and after folding of the end panels to interlock them together, wherein the notches are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of two opposed pairs of said end panels, each mouth being wider than a base thereof each of said notches. 9. The system of claim 8, wherein the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels. 10. The system of claim 9, further comprising a diagonal score line extending from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches. 11. The system of claim 10, wherein the carton comprises a central open area having corners formed by the four double-notch locking junctions. 12. The system of claim 11, wherein each of the notches has an outer width of 1.5 to 3 inches. 13. A blank foldable into a carton having side panels hingedly joined together by parallel fold lines, and end panels where each of said end panels is hingedly joined to the side panels, each of said end panels having a free edge and a hinged edge foldably attached to the side panels, and a locking system comprising two notches of equal size formed in the free edge of each of four opposing said end panels, each of the notches being spaced an equal distance from a respective closest one of the parallel fold lines forming an adjacent one of the side panels such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form four double-notch locking junctions, said end panels remaining substantially planar during and after folding of the end panels to interlock them together, wherein the notches are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of four opposed said end panels, each mouth being wider than a base thereof each of said notches. 14. The blank of claim 13, wherein the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels. 15. The blank of claim 14, further comprising a diagonal score line extending from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches. 16. The blank of claim 15, wherein the carton comprises a central open area having corners formed by the four double-notch locking junctions. 17. The blank of claim 16, wherein each of the notches has an outer width of 1.5 to 3 inches. 18. A carton comprising a plurality of side panels hingedly joined together by parallel fold lines, each of said side panels having respective end panels hingedly joined thereto by a second fold line substantially perpendicular to the parallel fold lines, and a locking mechanism comprising two notches formed in a free edge of each panel of two opposed pairs of the end panels, each of the notches being positioned in the free edge an equal distance from one of the parallel fold lines closest to a respective one of the notches, such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form double-notch locking junctions, wherein the notches are formed only in four of the end panels and each of the notches are the same size, are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of two opposed pairs of said end panels, each mouth being wider than a base thereof each of said notches, and each of the end panels having the notches opposes another of the end panels having the notches, the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels, and further wherein a diagonal score line extends from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the second fold line, to facilitate interlocking of the notches. 19. An end closure system for a carton having side panels hingedly joined together by parallel fold lines, and end panels hingedly joined to the side panels, the end panels each being substantially planar and having a free edge and a hinged edge foldably attached to the side panels, the system comprising two notches of equal size formed in the free edge of each of four opposing said end panels, each of the notches being spaced an equal distance from a respective closest one of the parallel fold lines forming an adjacent one of the side panels such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form four double-notch locking junctions, wherein the notches are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of four opposed said end panels, each mouth being wider than a base thereof each of said notches, the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels, and a diagonal score line extends from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches. 20. A blank foldable into a carton having side panels hingedly joined together by parallel fold lines, and end panels hingedly joined to the side panels, each of said end panels having a free edge and a hinged edge foldably attached to the side panels, and a locking system comprising two notches of equal size formed in the free edge of each of four opposing said end panels, each of the notches being spaced an equal distance from a respective closest one of the parallel fold lines forming an adjacent one of the side panels such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from an adjacent one of the end panels to form four double-notch locking junctions, the notches are substantially rectangular in shape and have tapered sides, such that each of said notches have a mouth in the free edge of each panel of four opposed said end panels, each mouth being wider than a base thereof each of said notches, the number of side panels in the carton is selected from the group consisting of four, eight or sixteen side panels, and a diagonal score line extends from an interior corner of each of the notches in one set of opposing said end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches. 21. A blank foldable into a carton having side panels hingedly joined together by parallel fold lines, and end panels where each of said end panels is hingedly joined to at least some of the side panels along a hinged edge, each of said end panels having a free edge opposite the hinged edge, and a locking system comprising two notches formed in each said free edge of those said end panels that overlap in a carton erected from said blank, each of the notches being located such that when the side panels are folded to form the carton and the end panels are folded over, one of the notches from each of the end panels interlocks with one of the notches from another one of the end panels to form double-notch locking junctions, and a diagonal score line extends from each of the notches in one of said overlapping end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches. 22. A carton having side panels hingedly joined together by parallel fold lines, and end panels where each of said end panels is hingedly joined to at least some of the side panels along a hinged edge, each of said end panels having a free edge opposite the hinged edge, at least a portion of each said the free edge of some of said end panels overlapping with at least a portion of each said the free edge of other of said end panels, and a locking system comprising two notches formed in each said the free edge of those said end panels that overlap, each of the notches being located such that the notches in one of the end panels each interlocks with a respective one of the notches from two other of the end panels to form double-notch locking junctions, and a diagonal score line extends from each of the notches in one of said overlapping end panels to an outer corner formed by an intersection of one of the parallel fold lines closest to a respective one of said notches and the hinged edge to facilitate interlocking of the notches.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (8)
Boutin John Randall ; Abshire Tony Joseph ; Jambois Brian Keith, Carton with locking mechanism.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.