WO2015056147A1 - Box and method for making the box - Google Patents

Box and method for making the box Download PDF

Info

Publication number
WO2015056147A1
WO2015056147A1 PCT/IB2014/065258 IB2014065258W WO2015056147A1 WO 2015056147 A1 WO2015056147 A1 WO 2015056147A1 IB 2014065258 W IB2014065258 W IB 2014065258W WO 2015056147 A1 WO2015056147 A1 WO 2015056147A1
Authority
WO
WIPO (PCT)
Prior art keywords
blank
tongue
wall
box
another
Prior art date
Application number
PCT/IB2014/065258
Other languages
French (fr)
Inventor
Marco Ghini
Andrea Biondi
Original Assignee
G. D S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by G. D S.P.A. filed Critical G. D S.P.A.
Publication of WO2015056147A1 publication Critical patent/WO2015056147A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0227—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples

Definitions

  • This invention relates to a box and to a method for making the box.
  • this invention has for an object a box made by folding a sheet or blank made of a flexible material, such as paperboard or laminated plastic, and having at least one substantially flat surface defined by folding in sequence a certain number of (preferably four) walls or tongues forming part of the blank.
  • a considerably more economical process of making such boxes involves cutting the blanks from a continuous strip on the packaging machines after providing the blanks with the necessary creases and pre-weakened lines.
  • This process may or may not involve creating swarf when the blanks are made.
  • Swarf is always the result of making specially shaped blanks used to obtain fine quality boxes but inevitably involves periodically removing the swarf from the packaging machines, with consequent costs connected not only with an operator having to actually remove the swarf itself but also with added complications in the machine to extract the swarf from the cutting line and prevent it from falling onto the floor.
  • the aim of this invention is to provide a box obtained from a blank cut off from a strip without producing swarf and a method for making the box, which are free of the above mentioned disadvantages of the prior art. According to this invention there are provided a box and a method of making the box as set out in the accompanying claims. Brief description of the drawings
  • Figure 1 is a plan view of a blank which can be used to make the box of this invention.
  • Figures 2 - 6 are five partial perspective views of the box of this invention illustrating five steps in the assembling of the top/bottom walls of the box.
  • the numeral 1 denotes in its entirety a blank made of a flexible material, such as paperboard or laminated plastic, and used to make a box 2 having substantially a parallelepiped shape of rectangular or square cross section, partially represented in Figures 2 to 6 showing five successive steps in the assembling thereof.
  • the blank 1 is rectangular in shape and is thus obtainable without swarf from a continuous strip of sheet material and is folded to form an elongate parallelepiped shape about four pre-weakened fold lines 3 extending thereon parallel to a longitudinal direction of extension D of the blank 1 itself.
  • the fold lines 3 define, in pairs of contiguous fold lines 3, four longitudinal side walls of the box 2 adjacent to each other in pairs, labelled 4a, 4b, 4c and 4d from the bottom up in Figure 1 , and one of these fold lines 3 separates the longitudinal side wall 4d adjacent to a lateral end of the blank 1 from a narrower wall 5 situated at that lateral end and intended to be glued to the surface, inside of the blank 1 , of the longitudinal side wall 4a situated at the other lateral end of the blank 1 .
  • the blank 1 In the proximity of each of the mutually opposite edge zones of the blank 1 , situated at the end zones of the fold lines 3 and intended to define the opposite top/bottom wall of the box 2, the blank 1 is provided with a pre- weakened fold line 6 perpendicular to the fold lines 3 themselves.
  • the blank 1 is first formed into a tubular shape by folding the side walls 4a, 4b, 4c and 4d and the wall 5 about the fold lines 3 and gluing the wall 5 to the surface of the side wall 4a on the inside of the box 2 ( Figure 2, which shows only one of the mutually opposite top/bottom walls 12 of the box 2 itself).
  • Figure 2, which shows only one of the mutually opposite top/bottom walls 12 of the box 2 itself.
  • the tongues 7, 8, 9, 10 and 1 1 are co-planar with the walls 4a, 4b, 4c, 4d and 5 they are connected to, and the tongue 5 is glued to the surface of the tongue 7, inside the box 2 (but it might only be pressed against the tongue 7 and not glued thereto).
  • Each of the top/bottom walls 12 is then made by folding the tongue 10 (Figure 3), the tongue 8 ( Figure 4), the tongue 7 and the tongue 1 1 glued thereto ( Figure 5), and the tongue 9 ( Figure 6) squarely and in sequence towards the central zone of the top/bottom wall 12 itself, about the adjacent fold line 6 of the blank 1 , and gluing the tongue 9 to the tongue 7 underneath it.
  • folding in this sequence means that the tongue 1 1 glued to the tongue 7 moves into contact with the tongue 10 beside the tongue 8 just folded to partly cover the tongue 10 itself, that is to say, it moves into the free space S coinciding with the zone of the tongue 8 which is not superposed on the tongue 10, and that its thickness in the context of the top/bottom wall 12 coincides with that of the tongue 8 beside it and does not upset the flatness of the top/bottom wall 12 itself.
  • each tongue 8, 7, 9 folded after the first tongue 10 is partly superposed on a tongue 10, 8, 7 which was previously folded, thus creating on top of the tongue 10, 8, 7 previously folded a free space S on which the tongue 8, 7, 9 folded after it is not superposed.
  • top/bottom wall 12 of the box 2 is made in exactly the same way and at the same time as the top/bottom wall 12 whose formation has just been described.

Abstract

Described are a box (2) made by folding a blank (1) made of flexible material and a method for making the box; the box (2) is provided with at least one top/bottom wall (12) formed by folding one after another a plurality of tongues (7, 8, 9, 10, 11) of the blank (1); the blank (1) comprises a plurality of walls (4a, 4b, 4c, 4d, 5) adjacent to one another in pairs and separated from one another by a pre-weakened fold line (3), and a first wall (5) located at a first side end of the blank (1) is connected, inside the box (2), to an inner portion of a final wall (4a) positioned at the side end of the blank (1) opposite to the first side end; the tongues (7, 8, 9, 10, 11) relating to each top/bottom wall (12) are connected to respective end portions of the walls (4a, 4b, 4c, 4d, 5) and a tongue (11) connected to the first wall (5) being intended to adhere to a portion inside the box (2) of a tongue (7) connected to the final wall (4a); each tongue (8, 7, 9) folded after the first tongue is partly superposed on at least one further tongue (10, 8, 7) which was previously folded, with the consequent presence on top of said further tongue (10, 8, 7) of a free space (S) on which the tongue (8, 7, 9) folded onto it is not superposed, and, after all of the tongues (7, 8, 9, 10, 11) of each top/bottom wall (12) have been folded, the tongue (11) connected to the first wall (5) is contained in a free space (S).

Description

DESCRIPTION
BOX AND METHOD FOR MAKING THE BOX
Technical field
This invention relates to a box and to a method for making the box.
More specifically, this invention has for an object a box made by folding a sheet or blank made of a flexible material, such as paperboard or laminated plastic, and having at least one substantially flat surface defined by folding in sequence a certain number of (preferably four) walls or tongues forming part of the blank.
Background art
To make boxes of the above mentioned type on automatic packaging machines, it is common practice to use blanks which have been punched and creased by the manufacturer.
A considerably more economical process of making such boxes involves cutting the blanks from a continuous strip on the packaging machines after providing the blanks with the necessary creases and pre-weakened lines.
This process may or may not involve creating swarf when the blanks are made.
Swarf is always the result of making specially shaped blanks used to obtain fine quality boxes but inevitably involves periodically removing the swarf from the packaging machines, with consequent costs connected not only with an operator having to actually remove the swarf itself but also with added complications in the machine to extract the swarf from the cutting line and prevent it from falling onto the floor.
In a blank produced without creating swarf, on the other hand, some parts of the blank, especially on the walls and tongues which will define the closed top and bottom walls of the box, and which are not cut away, although better results would be obtained if they were, are overlapped during the process of folding to form the finished box, thereby creating irregular zones which are unusually thick or not perfectly flat. The unattractive appearance of the resulting box means that blanks of this kind are used only to make boxes whose aesthetic quality is not required to be very high.
Aim of the invention
The aim of this invention is to provide a box obtained from a blank cut off from a strip without producing swarf and a method for making the box, which are free of the above mentioned disadvantages of the prior art. According to this invention there are provided a box and a method of making the box as set out in the accompanying claims. Brief description of the drawings
The invention is described below with reference to the accompanying drawings, which illustrate a non-limiting embodiment of it and in which: Figure 1 is a plan view of a blank which can be used to make the box of this invention; and
Figures 2 - 6 are five partial perspective views of the box of this invention illustrating five steps in the assembling of the top/bottom walls of the box.
Detailed description of preferred embodiments of the invention
With reference to Figure 1 , the numeral 1 denotes in its entirety a blank made of a flexible material, such as paperboard or laminated plastic, and used to make a box 2 having substantially a parallelepiped shape of rectangular or square cross section, partially represented in Figures 2 to 6 showing five successive steps in the assembling thereof.
The blank 1 is rectangular in shape and is thus obtainable without swarf from a continuous strip of sheet material and is folded to form an elongate parallelepiped shape about four pre-weakened fold lines 3 extending thereon parallel to a longitudinal direction of extension D of the blank 1 itself. The fold lines 3 define, in pairs of contiguous fold lines 3, four longitudinal side walls of the box 2 adjacent to each other in pairs, labelled 4a, 4b, 4c and 4d from the bottom up in Figure 1 , and one of these fold lines 3 separates the longitudinal side wall 4d adjacent to a lateral end of the blank 1 from a narrower wall 5 situated at that lateral end and intended to be glued to the surface, inside of the blank 1 , of the longitudinal side wall 4a situated at the other lateral end of the blank 1 . In the proximity of each of the mutually opposite edge zones of the blank 1 , situated at the end zones of the fold lines 3 and intended to define the opposite top/bottom wall of the box 2, the blank 1 is provided with a pre- weakened fold line 6 perpendicular to the fold lines 3 themselves. Each of the fold lines 6, together with the fold lines 3 intersected thereby, defines a plurality of walls or tongues, labelled 7, 8, 9, 10 and 1 1 , respectively, which are separated in pairs by through cuts which constitute extensions of the fold lines 3, positioned respectively adjacent to the side walls 4a, 4b, 4c and 4d and to the wall 5.
To assemble the box 2, the blank 1 is first formed into a tubular shape by folding the side walls 4a, 4b, 4c and 4d and the wall 5 about the fold lines 3 and gluing the wall 5 to the surface of the side wall 4a on the inside of the box 2 (Figure 2, which shows only one of the mutually opposite top/bottom walls 12 of the box 2 itself). In this initial situation, the tongues 7, 8, 9, 10 and 1 1 are co-planar with the walls 4a, 4b, 4c, 4d and 5 they are connected to, and the tongue 5 is glued to the surface of the tongue 7, inside the box 2 (but it might only be pressed against the tongue 7 and not glued thereto).
Each of the top/bottom walls 12 is then made by folding the tongue 10 (Figure 3), the tongue 8 (Figure 4), the tongue 7 and the tongue 1 1 glued thereto (Figure 5), and the tongue 9 (Figure 6) squarely and in sequence towards the central zone of the top/bottom wall 12 itself, about the adjacent fold line 6 of the blank 1 , and gluing the tongue 9 to the tongue 7 underneath it.
It should be noted that folding in this sequence means that the tongue 1 1 glued to the tongue 7 moves into contact with the tongue 10 beside the tongue 8 just folded to partly cover the tongue 10 itself, that is to say, it moves into the free space S coinciding with the zone of the tongue 8 which is not superposed on the tongue 10, and that its thickness in the context of the top/bottom wall 12 coincides with that of the tongue 8 beside it and does not upset the flatness of the top/bottom wall 12 itself. More in general, each tongue 8, 7, 9 folded after the first tongue 10 is partly superposed on a tongue 10, 8, 7 which was previously folded, thus creating on top of the tongue 10, 8, 7 previously folded a free space S on which the tongue 8, 7, 9 folded after it is not superposed.
The other top/bottom wall 12 of the box 2 is made in exactly the same way and at the same time as the top/bottom wall 12 whose formation has just been described.
Lastly, it should be noted that although the box obtainable from the blank 1 described has a rectangular or square cross section, the concepts set out above, which lead to the tongue 1 1 being contained in the free space S, are also applicable to cases where the side walls of the blank 1 differ in number from those considered above.

Claims

1 . A box made by folding a blank (1 ) made of flexible material, the blank (1 ) being obtainable with no swarf from a continuous strip of sheet material and the box (2) being provided with at least one top/bottom wall (12) formed by folding one after another a plurality of tongues (7, 8, 9, 10, 1 1 ) of the blank (1 ), the blank (1 ) comprising a plurality of walls (4a, 4b, 4c, 4d, 5) adjacent to one another in pairs and separated from one another by a pre-weakened fold line (3), and a first wall (5) of the blank (1 ) located at a first side end of the blank (1 ) being intended to be connected, inside the box (2), to an inner portion of a final wall (4a) positioned at the side end of the blank (1 ) opposite to the first side end; the tongues (7, 8, 9, 10, 1 1 ) of the blank (1 ) relating to each top/bottom wall (12) of the box (2) being connected to respective end portions of the walls (4a, 4b, 4c, 4d, 5) adjacent to one another in pairs and a tongue (1 1 ) connected to the first wall (5) being intended to adhere to a portion inside the box (2) of a tongue (7) connected to the final wall (4a); characterized in that each tongue (8, 7, 9) folded after the first tongue (10) is partly superposed on at least one further tongue (10, 8, 7) which was previously folded, with the consequent presence on top of said further tongue (10, 8, 7) of a free space (S) on which the tongue (8, 7, 9) folded onto it is not superposed, and in that, after all of the tongues (7, 8, 9, 10, 1 1 ) of each top/bottom wall (12) have been folded, the tongue (1 1 ) connected to the first wall (5) is contained in said free space (S).
2. The box according to claim 1 , wherein the blank (1 ) comprises four side walls (4a, 4b, 4c, 4d) which are adjacent to one another in pairs and a wall (5) with smaller width which is connected to a side wall (4d) adjacent to a side end of the blank (1 ); the walls (4a, 4b, 4c, 4d, 5) being separated from one another by a pre-weakened fold line (3), and the wall (5) with smaller width being designed to be glued to the surface inside the blank (1 ) of the side wall (4a) located at the other side end of the blank (1 ).
3. A method for making, using a blank (1 ) made of flexible material and obtainable with no swarf from a continuous strip of sheet material, a box provided with at least one top/bottom wall (12) formed by folding one after another a plurality of tongues (7, 8, 9, 10, 1 1 ) of the blank (1 ); the tongues (7, 8, 9, 10, 1 1 ) of the blank (1 ) relating to each top/bottom wall (12) of the box (2) being connected to respective end portions of a plurality of walls (4a, 4b, 4c, 4d, 5) of the blank (1 ) which are adjacent to one another in pairs and separated from one another by a pre-weakened fold line (3), a first wall (5) of the blank (1 ) located at a first side end of the blank (1 ) being connected inside the box (2) to an inner portion of a final wall (4a) positioned at the side end of the blank (1 ) opposite to the first side end, and a tongue (1 1 ) connected to the first wall (5) adhering to a portion inside the box (2) of a tongue (7) connected to the final wall (4a); characterized in that, after the folding of a first tongue (10), each tongue (8, 7, 9) which is subsequently folded is partly superposed on a further tongue (10, 8, 7) which was previously folded, with the consequent presence on top of said further tongue (10, 8, 7) of a free space (S) on which the tongue (8, 7, 9) folded onto it is not superposed; the tongue (1 1 ) connected to the first wall (5) being housed in said free space (S).
PCT/IB2014/065258 2013-10-16 2014-10-13 Box and method for making the box WO2015056147A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2013A000566 2013-10-16
IT000566A ITBO20130566A1 (en) 2013-10-16 2013-10-16 BOX AND METHOD FOR ITS REALIZATION.

Publications (1)

Publication Number Publication Date
WO2015056147A1 true WO2015056147A1 (en) 2015-04-23

Family

ID=49780136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/065258 WO2015056147A1 (en) 2013-10-16 2014-10-13 Box and method for making the box

Country Status (2)

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IT (1) ITBO20130566A1 (en)
WO (1) WO2015056147A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140178A (en) * 1935-07-11 1938-12-13 Wesselman Albert Sealed carton and method of manufacture
US3397832A (en) * 1967-04-17 1968-08-20 Cherry Burrell Corp Offcenter butt joint for cartons
US5148970A (en) * 1992-01-10 1992-09-22 Rexham Corporation Tamper evident folding carton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140178A (en) * 1935-07-11 1938-12-13 Wesselman Albert Sealed carton and method of manufacture
US3397832A (en) * 1967-04-17 1968-08-20 Cherry Burrell Corp Offcenter butt joint for cartons
US5148970A (en) * 1992-01-10 1992-09-22 Rexham Corporation Tamper evident folding carton

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Publication number Publication date
ITBO20130566A1 (en) 2015-04-17

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