The invention relates to a set (22) of blanks for forming a packaging box, a method and a corresponding box. The set includes two corrugated board blanks, namely: a first blank (2′) including flaps connected to one another by first fold lines (9′), one side of said blank having no folds; and a secon
The invention relates to a set (22) of blanks for forming a packaging box, a method and a corresponding box. The set includes two corrugated board blanks, namely: a first blank (2′) including flaps connected to one another by first fold lines (9′), one side of said blank having no folds; and a second blank (12′) including panels (13′, 14′, 15′, 16′) connected to one another by third fold lines (19′), the panels of the second blank being stacked respectively on the part of the first blank having no folds. Two non-adjacent flaps (3′, 5′) of the first blank are glued to two respective facing panels (13′, 15′) of the second blank, thereby preventing the relative movement thereof during folding or during the formation of the box when the blanks are wound around a volume having pre-determined dimensions. At least two-thirds of the third fold lines (19′) of the second blank are substantially aligned in relation to the first fold lines of the first blank, the lower part (23) of one or more of said third lines including a cut or collapsed portion opposite the corresponding first fold line.
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1. A set of blanks for forming a packaging box comprising two blanks made of cardboard sheet material, at least one of them being made of corrugated cardboard, namely a first blank including a first series of at least four main flaps terminated by a fixing tab, connected to one another by first fold
1. A set of blanks for forming a packaging box comprising two blanks made of cardboard sheet material, at least one of them being made of corrugated cardboard, namely a first blank including a first series of at least four main flaps terminated by a fixing tab, connected to one another by first fold lines parallel to one another and provided on one side with a series of flaps connected to said first series of main flaps by second fold lines perpendicular to said first fold lines and without flaps on the other side, said first series of flaps being designed to form the walls of the base of the packaging box and a second blank having bottom parts including a second series of at least four panels connected to one another by third fold lines parallel to one another, said second blank being designed to form the lid of said packaging box, the panels of the second blank having an edge without flaps being respectively stacked on the part without flaps of the main flaps of the first blank, wherein two non-adjacent flaps of the first blank are glued respectively to two opposite panels of the second blank, preventing the relative movement thereof when folding or forming the packaging box by winding said blanks around a volume of predetermined dimensions, and wherein at least two out of three of the third fold lines of the second blank are substantially aligned in relation to corresponding lines of the first fold lines of the first blank and each of the third fold lines is at an offset equal to or less than ½ of a thickness of the cardboard sheet material of the first blank in relation to its corresponding line of the first fold lines, one or more of said third lines including, in the bottom parts of the corresponding panels, a cut or collapsed portion opposite the corresponding first fold line. 2. The set of blanks as claimed in claim 1, wherein the two blanks are made of corrugated cardboard. 3. The set of blanks as claimed in claim 1, wherein a portion or portions that are substantially aligned with the first fold lines and situated opposite said first fold lines are cut. 4. The set of blanks as claimed in claim 3, wherein the cut or collapsed portion is crosshead-shaped. 5. The set of blanks as claimed in claim 3, wherein the cut or collapsed portion is T-shaped. 6. The set of blanks as claimed in claim 1, wherein the cut or collapsed portion is offset from the rest of its third fold line. 7. The set of blanks as claimed in claim 1, wherein, the thickness of the cardboard sheet material of the base being E1 and that of the cardboard sheet material of the lid being E2, the base being fixed to the outside of the lid, the cut or collapsed portion is cut and is offset from the rest of its third fold line by an amount equal to or less than half of 1/3 E1+⅔ E2. 8. The set of blanks as claimed in claim 1, wherein a portion or portions of the third fold lines that are substantially aligned with the first fold lines and situated opposite said first fold lines are collapsed. 9. The set of blanks as claimed in claim 8, wherein, the thickness of the cardboard sheet material of the base being E1 and that of the cardboard sheet material of the lid being E2, the collapsing is done over a width greater than 2×(E1+E2). 10. The set of blanks as claimed in claim 1, wherein the cut or collapsed portion extends beyond the edge without flaps of the first blank. 11. The set of blanks as claimed in claim 1, wherein the bottom edge of the second blank being opposite, or substantially opposite, the second fold lines, and wherein the cut or collapsed portion extends upward over a length greater than the height of the flaps of the first blank. 12. The set of blanks as claimed in claim 1, wherein the first blank has eight flaps, namely four main flaps separated from one another by intermediate flaps designed to form cut corners of the packaging box. 13. The set of blanks as claimed in claim 1, wherein said at least two out of three of the third fold lines of the second blank are substantially aligned with an offset equal to or less than 1 millimeter in relation to corresponding lines of the first fold lines of the first blank. 14. The set of blanks as claimed in claim 13, wherein the offset is equal to or between 0.5 and 0.7 millimeters. 15. A packaging box with polygonal section, formed from two blanks made of cardboard sheet material, at least one of which is made of corrugated cardboard, namely a first blank including a series of at least four main flaps terminated by a fixing tab, connected to one another by first fold lines parallel to one another, said series of flaps forming the walls of the base of the packaging box and being connected on one side to a series of flaps by second fold lines perpendicular to said first fold lines, said series of flaps forming the bottom of said packaging box, and a second blank having bottom parts including at least four panels connected to one another by a third fold line, said second blank forming the lid of said packaging box, the panels of the second blank having an edge without flaps being respectively stacked on the part without flaps of the main flaps of the first blank, wherein two non-adjacent flaps of the first blank are glued respectively to two opposite panels of the second blank, preventing the relative movement thereof when folding or forming the packaging box by winding said blanks around a volume of predetermined dimensions, and wherein at least two out of three of the third fold lines of the second blank are substantially aligned in relation to the first fold lines of the first blank and each of the third fold lines is at an offset equal to or less than ½ of a thickness of the cardboard sheet material of the first blank in relation to its corresponding line of the first fold lines, one or more of said third fold lines including in the bottom parts of the corresponding panels a cut or collapsed portion opposite the corresponding first fold line. 16. The packaging box as claimed in claim 15, wherein a portion or portions of the third fold lines that are substantially aligned with the first fold lines and situated opposite the first fold lines are cut. 17. The packaging box as claimed in claim 15, wherein the cut or collapsed portions are crosshead-shaped or T-shaped. 18. The packaging box as claimed in claim 15, wherein the cut or collapsed portion is offset from the rest its third fold line. 19. The packaging box as claimed in claim 18, wherein the cut or collapsed portion is offset from the rest of its third fold line along the order of 0.4 to 0.8 mm. 20. The packaging box as claimed in claim 15, wherein a portion or portions of the third fold lines that are substantially aligned with the first fold lines and situated opposite the first fold lines are collapsed. 21. The packaging box as claimed in claim 20, wherein the thickness of the cardboard sheet material of the base being E1 and that of the cardboard sheet material of the lid being E2, the collapsing is done over a width greater than 2×(E1+E2). 22. The packaging box as claimed in claim 15, wherein the cut or collapsed portion extends beyond the edge without flaps of the first blank. 23. The packaging box as claimed in claim 15, wherein the first blank has eight flaps, namely four main flaps separated from one another by intermediate flaps designed to form cut corners of the packaging box. 24. A method for producing a packaging box with polygonal section from two blanks made of corrugated cardboard sheet material, namely a first blank including a series of at least four main flaps terminated by a fixing tab, linked to one another by first fold lines parallel to one another, said series of main flaps forming the walls of the base of the packaging box and being connected on one side to a series of flaps by second fold lines perpendicular to said first fold lines, said series of flaps forming the bottom of said packaging box, and having no flaps on the other side, and a second blank having bottom parts including at least four panels connected to one another by third fold lines parallel to one another, said second blank forming a lid for said packaging box, wherein at least two out of three of the third fold lines of the second blank being substantially spaced apart by the same distances as those spacing apart the first fold lines of the first blank,one or more of said third fold lines are cut or collapsed in the bottom parts of the corresponding panels over a portion arranged to be positioned opposite the one or more corresponding first fold lines,two non-adjacent flaps or panels are glued,the second blank is placed on the first blank, or vice versa, such that the portion or portions of the one or more third fold lines that are cut or collapsed are substantially aligned in relation to its corresponding first fold line and each of the third fold lines is at an offset equal to or less than ½ of a thickness of the cardboard sheet material of the first blank in relation to its corresponding line of the first fold lines,and the packaging box is formed by winding the blanks around a predetermined volume, with no sliding of the second blank relative to the first blank, the portion or portions of the one or more third fold lines that are cut or collapsed allowing for the formation without tearing flaps and panels of the packaging box. 25. The method as claimed in claim 24, wherein the portion or portions of the one or more third fold lines that are cut or collapsed are formed in such a way that the portion or portions extend, after gluing, beyond an edge without flaps of the first blank. 26. The method as claimed in claim 24, wherein a cut is produced in the portion or portions of the one or more third fold lines that are cut or collapsed, the cut being in the shape of a crosshead or in the shape of a T. 27. The method as claimed in claim 24, wherein the portion or portions of the one or more third fold lines that are cut or collapsed are offset from the rest of its third fold line on the order of 0.4 to 0.8 mm. 28. The method as claimed in claim 24, wherein the portion or portions of the one or more third fold lines that are cut or collapsed are collapsed. 29. The method as claimed in claim 28, wherein the portion or portions of the one or more third fold lines that are cut or collapsed are collapsed over a width of approximately 10 mm.
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Chipp Douglas Frank (3955 Belanger St. E. ; Apt. 407 ; Montreal 408 Quebec CA) Delorme Raymond (4481 Gatineau ; Chomedey ; Laval Quebec CA), Containers with reclosable opening means.
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