Gable top carton and carton blank with curved side creases and coincident corner creases
AssigneeTetra Laval Holdings & Finance S.A.
InventorTommy Bo Goran Ljungstrom
Life of this patent
Estimating the term…
Abstract
A gable top carton and its corresponding carton blank are disclosed. The carton includes curved side creases that are defined by curved score lines that divide one or more side panels from a top gabled structure and/or a bottom structure. The gabled structure includes pairs of diagonal creases defined by diagonal score lines. The diagonal score lines form an apex at one end and extend to vertical score lines that separate the side panels of the carton at the edge between adjacent side panels. The diagonal score lines form an angle with the vertical score lines. The vertex of the angle formed is coincident with the vertical score line to facilitate folding and create better quality corners by reducing bunching of carton material at the corner.
Claims4
A blank for fabrication into a gable top carton, the blank comprising:
- first, second, third and fourth side panels, the first side panel partitioned from the second side panel by a first vertical score line, the second side panel partitioned from the third side panel by a second vertical score line, the third side panel partitioned from the fourth side panel by a third vertical score line;
- and
- first, second, third and fourth top flaps respectively adjacent the first, second, third and fourth side panels, the first top flap partitioned from the first side panel by a first straight score line, the second top flap partitioned from the second side panel by a first curved score line, the third top flap partitioned from the third side panel by a second straight score line, the fourth top flap partitioned from the fourth side panel by a second curved score line, the second top flap having first and second diagonal score lines, the second top flap partitioned from the first top flap by a fifth vertical score line, the second flap partitioned from the third top flap by a sixth vertical score line, the second side panel having a third curved score line below the first curved score line;
- wherein the first diagonal score line is coincident with the first vertical score line to form a first vertex, the second diagonal score line is coincident with the second vertical score line to form a second vertex, the fifth vertical score line, the first straight score line, the first curved score line and the third curved score line each having an end terminating about and offset from the first vertex, and the sixth vertical score line, the second straight score line, the first curved score line and the third curved score line each having an end terminating about and offset from the second vertex.
A gable top carton comprising:
- first, second, third and fourth side panels, the first side panel partitioned from the second side panel by a first vertical score line, the second side panel partitioned from the third side panel by a second vertical score line, the third side panel partitioned from the fourth side panel by a third vertical score line;
- and
- first, second, third and fourth top flaps respectively adjacent the first, second, third and fourth side panels, the first top flap partitioned from the first side panel by a first straight score line, the second top flap partitioned from the second side panel by a first curved score line, the third top flap partitioned from the third side panel by a second straight score line, the fourth top flap partitioned from the fourth side panel by a second curved score line, the second top flap having first and second diagonal score lines, the second top flap partitioned from the first top flap by a fifth vertical score line, the second flap partitioned from the third top flap by a sixth vertical score line, the second side panel having a third curved score line below the first curved score line;
- wherein the first diagonal score line is coincident with the first vertical score line to form a first vertex, the second diagonal score line is coincident with the second vertical score line to form a second vertex, the fifth vertical score line, the first straight score line, the first curved score line and the third curved score line each having an end terminating about and offset from the first vertex, and the sixth vertical score line, the second straight score line, the first curved score line and the third curved score line each having an end terminating about and offset from the second vertex.
Dependencies are inferred from the claim text.