WO2011083323A1 - Container, blank therefor and method of manufacturing thereof - Google Patents

Container, blank therefor and method of manufacturing thereof Download PDF

Info

Publication number
WO2011083323A1
WO2011083323A1 PCT/GB2011/050003 GB2011050003W WO2011083323A1 WO 2011083323 A1 WO2011083323 A1 WO 2011083323A1 GB 2011050003 W GB2011050003 W GB 2011050003W WO 2011083323 A1 WO2011083323 A1 WO 2011083323A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
wall
edge
tab portion
tab
Prior art date
Application number
PCT/GB2011/050003
Other languages
French (fr)
Inventor
Frank Mills
Original Assignee
Colpac Limited
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 Colpac Limited filed Critical Colpac Limited
Publication of WO2011083323A1 publication Critical patent/WO2011083323A1/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
    • B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2038—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape
    • B65D5/2042—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape triangular
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels
    • 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
    • B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2052—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form characterised by integral closure-flaps
    • B65D5/2076—Cooperating flaps glued together
    • 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
    • B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/247—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and being maintained in erected condition by integral mechanical locking means formed on, or coacting with, the gusset folds, e.g. locking tabs, tongue and slit
    • 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
    • B65D5/36—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections
    • B65D5/3607—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank
    • B65D5/3635—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body
    • B65D5/3642—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body the secured corners presenting diagonal, bissecting or similar folding lines, the central panel presenting no folding line
    • B65D5/3657—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 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections formed by folding or erecting a single blank by folding-up portions connected to a central panel from all sides to form a container body the secured corners presenting diagonal, bissecting or similar folding lines, the central panel presenting no folding line the adjacent sides being interconnected by gusset folds
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4204—Inspection openings or windows
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Definitions

  • the present invention relates to a container, a blank in respect of said container and a method for manufacturing said container, and more specifically, but not exclusively, to a container for receiving a food product and to a blank and manufacturing method relating to such a container.
  • a first aspect of the present invention provides a container as recited in the appended independent claim 1.
  • a second aspect of the present invention provides a blank as recited in the appended independent claim 30.
  • a third aspect of the present invention provides a method of manufacture as recited in the appended independent claim 36.
  • Figure 1 is a plan view of a blank for a container according to the present invention.
  • Figure 2 is perspective view of the blank shown in Figure 1 partly folded into a container according the present invention
  • Figure 3 is a perspective view of a container according to the present invention wherein a first tab portion is yet to be located in a final position;
  • Figure 4 is a perspective view of the container of Figure 3 wherein said tab portion has been secured into a final position (and, accordingly, is no longer visible in Figure 4); and
  • Figure 5 is an end view of the container in Figures 3 and 4, wherein said tab portion is shown in its final position.
  • a container 1 is shown in Figures 3 to 5 of the accompanying drawings.
  • Figure 3 a perspective view of the container 1 is shown wherein a tab portion 2 has yet to be secured in a final position.
  • a fully assembled container 1 is shown in the perspective view of Figure 4 and the end view of Figure 5, wherein the tab portion 2 is secured in its final position by means of an adhesive.
  • the container 1 comprises two side walls 4,6 and two end walls 8,10.
  • the side walls 4,6 are of the same size and shape.
  • the shape of the side wall 4 is that of an isosceles triangle.
  • the end walls 8,10 have the same size and shape as one another.
  • the shape of the end walls 8,10 is that of a rectangle.
  • One of the side walls 4 has an edge 12 which is generally coincident with an edge 14 of one of the end walls 8. Furthermore, an edge 16 of the second side wall 6 is generally coincident with a second edge 18 of the end wall 8.
  • the edge 12 of the side wall 4 is retained in a position generally coincident with the edge 14 of the end wall 8 by means of a folded web portion 20 extending between said edges 12,14 and by means of the first tab portion 2.
  • the edge 16 of the second side wall 6 is retained in a position generally coincident with the opposite edge 18 of the end wall 8 by means of a second tab portion 22 which extends from the full length of the edge 16 of the second side wall 6.
  • Both the first and second tabs 2,22 are located in abutment with the exterior surface of the end wall 8 and secured thereto by means of an adhesive (as most clearly shown in Figure 5 of the accompanying drawings).
  • the second tab 22 has a free edge 24 having a profile shaped to receive and locate around the first tab portion 2 when the two tab portions 2,22 are adhered to the end wall 8.
  • the first tab portion 2 fits within the profile of the edge 24 of the second tab portion 22 so that the two tab portions 2,22 combine with one another to substantially exactly cover the exterior surface of the end wall 8.
  • the two tab portions 2,22 may be shaped and sized so that they do not entirely cover the end wall 8 and do not fit together.
  • the second tab portion 22 may be significantly smaller than in the embodiment of the accompanying drawings. As a result, the two tab portions 2,22 may be significantly spaced from one another in the assembled container 1.
  • the edge 12 of the first side wall 4 is primarily retained in position generally coincident with the edge 14 of the first end wall 8 by means of the web portion 20 extending between said edges 12, 14. More specifically, the web portion 20 is provided with a fold line about which, in the assembled container 1 the web portion 20 is folded to provide a first part 28 of the web portion 20 on one side of the fold line 26 and a second part 30 of the web portion 20 on the other side of the fold line 26.
  • the web portion 20 is folded inwardly into the interior of the container 1 and located so that the two parts 28,30 of the web portion 20 are adjacent and abutting one another. Furthermore, the two parts 28,30 of the web portion 20 are secured to one another by means of an adhesive.
  • the first part 28 of the web portion 20 is secured to the interior surface of the first side wall 4 by means of an adhesive.
  • the adhering of the two parts 28,30 of the web portion 20 to one another and of the first part 28 of the web portion 20 to the side wall 4 is a primary means by which the edge 12 of the side wall 4 is retained generally coincident of the edge 14 of the end wall 8, it will be understood by the person skilled in the art that the integrity of this structural connection is supported by the means of the first tab portion 2 being secured to the exterior surface of the end wall 8 by means of adhesive.
  • the second end wall 10 is connected to the first side wall 4 by means of a fold line 32 and to the second 6 by means of a further fold line 34. Also, the two rectangular end walls 8,10 are connected to one another along a common minor side by means of a yet further fold line 36.
  • the container 1 further comprises a closure or lid 38 having a window 40 provided therein.
  • the window 40 may be provided with a transparent material so as to allow the contents of the container 1 to be viewed whilst ensuring the interior of the container 1 remains sealed from the external environment.
  • the closure 38 is inwardly secured to the first side wall 4 by means of a fold line 42.
  • the closure 38 is sized so as to cover and overlap the opening 44 to the container 1.
  • the overlapping portions of the closure 38 are secured to tabs 46 foldably connected to the free edge of the two side walls 4,6 and the second end wall 10 by means of fold lines 48.
  • the first end wall 8 is not provided with such a tab 46, although such a tab 46 is foldably connected to the free edge of the second tab portion 22.
  • the closure 38 is secured to the tabs 46 by means of an adhesive and a seal is thereby provided.
  • the second side wall 6 is bisected by a fold line 50 extending from intersection of fold line 34 (between the second end wall 10 and the second side wall 6) and the fold line 36 (between the two end walls 8,10).
  • the second side wall 6 is not folded about the said bisecting fold line 50.
  • the partially assembled container may be arranged in a flat planar configuration by folding the second side wall 6 onto itself about said bisecting folde line 50.
  • the container 1 is assembled from a planar blank of a resiliently bendable/foldable material, such as cardboard.
  • the blank 100 from which the container 1 is assembled is shown in Figure 1 with a partly assembled blank show in Figure 2.
  • fold lines marked with the letter "a” denote a line about which the portions of blank located either side of the line are rotated upwardly out of the page.
  • fold lines marked with the letter “z” denote a line about which the portions of blank located either side of the line are effectively rotated downwardly into the page during assembly of the container 1.
  • lines marked with the letter "c” are cut between points denoted by the letter "x". This cutting of the blank allows for a separation of a portion of blank from another portion of blank thereby further allowing said portions to be moved relative to one another.
  • the first tab portion 2 is cut from material extending between the edge 12 of the first side wall 4 and the edge 14 of the first end wall 8 and which would otherwise form another part of the web portion 20.
  • the part of the edge 12 of the first side wall 4 from which the tab portion 2 extends is located centrally along said edge 12.
  • the web portion 20 therefore extends from parts 102,104 of the edge 12 of the first side wall 4 which are located either side of the part 106 of the edge 12 from which the tab portion 2 extends.
  • the part 106 of the edge 12 from which the tab portion extends is approximately sixty-five percent of the total length of the edge 12.
  • tab portion 2 may be provided with a different size or a shape to that shown in accompanying drawings. It will also be apparent to a reader skilled in the art that one or more tab portions 2 may extend from the edge 12 of the first side door 4.
  • the final steps of the assembly process may include the step of folding the first tab portion 2 into abutment with the exterior of the end wall 8. This step may be completed by a member of assembly machinery abuting the tab portion 2 as the partially assembled container is moved passed said member (not shown in the accompanying drawings). As the partially assembled container (or blank) is moved past said member (perhaps on a conveyer belt or via the automated machinery) the member presses against the tab portion 2 and bends/folds the tab portion 2 against the first end wall 8. Adhesive previously provided on the tab portion 2 and/or end wall 8 secures the tab portion 2 and end wall 8 together.
  • tab portion 2 provides a tamper evident feature.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

The present invention relates to a container, a blank in respect of said container and a method for manufacturing said container. A container (1) is provided as comprising a first wall (4) having an edge (12), a second wall (8) having an edge (14), and a web portion (20) extending between said edges (12,14) of the first and second walls (4,8), the first and second walls (4,8) being located adjacent one another along said edges (12,14), wherein the container further comprises a tab portion (2) extending from said edge (12) of the first wall (4) so as to be located on an exterior surface of the second wall (8).

Description

CONTAINER, BLANK THEREFOR AND METHOD OF MANUFACTURING THEREOF
The present invention relates to a container, a blank in respect of said container and a method for manufacturing said container, and more specifically, but not exclusively, to a container for receiving a food product and to a blank and manufacturing method relating to such a container.
It is well known to package some food products, such as sandwiches, in sealed containers which are folded from a blank of material, such as cardboard. Once a blank is folded into an assembled container, it is retained in the assembled configuration by means of an adhesive. A closure (or lid) may also be sealingly secured in position so as to close the container by means of an adhesive. However, despite the use of adhesives to seal and secure a container, there remains a tendency for the prior art containers to leak fluids from within the container and/or allow and ingress of fluids from exteriorly of the container. There also remains a tendency for the adhesive bonds between surfaces to weaken and thereby allow a separation of the bonded surfaces. For this reason, the integrity of the prior art containers can become compromised during the life of the container.
It is an object of the present invention to provide a container which resists an ingress or egress of fluids, or the ingress of foreign matter.
It is also an object of the present invention to provide a container which maintains structural integrity throughout the life of the container.
It is a further object of the invention to provide a blank from which a container for resisting the ingress or egress of fluid and/or having improved structural integrity can be manufactured. It is a yet further object of the present invention to provide a method of manufacturing a container for resisting the ingress or egress of fluid and/or having improved structural integrity can be manufactured.
A first aspect of the present invention provides a container as recited in the appended independent claim 1.
A second aspect of the present invention provides a blank as recited in the appended independent claim 30.
A third aspect of the present invention provides a method of manufacture as recited in the appended independent claim 36.
Further features of the present invention are provided as recited in the appended dependent claims.
An embodiment of the invention will now be described with reference to the accompanying drawings, in which:
Figure 1 is a plan view of a blank for a container according to the present invention;
Figure 2 is perspective view of the blank shown in Figure 1 partly folded into a container according the present invention;
Figure 3 is a perspective view of a container according to the present invention wherein a first tab portion is yet to be located in a final position;
Figure 4 is a perspective view of the container of Figure 3 wherein said tab portion has been secured into a final position (and, accordingly, is no longer visible in Figure 4); and Figure 5 is an end view of the container in Figures 3 and 4, wherein said tab portion is shown in its final position.
A container 1 is shown in Figures 3 to 5 of the accompanying drawings. In Figure 3, a perspective view of the container 1 is shown wherein a tab portion 2 has yet to be secured in a final position. A fully assembled container 1 is shown in the perspective view of Figure 4 and the end view of Figure 5, wherein the tab portion 2 is secured in its final position by means of an adhesive.
The container 1 comprises two side walls 4,6 and two end walls 8,10. The side walls 4,6 are of the same size and shape. The shape of the side wall 4 is that of an isosceles triangle. The end walls 8,10 have the same size and shape as one another. The shape of the end walls 8,10 is that of a rectangle.
One of the side walls 4 has an edge 12 which is generally coincident with an edge 14 of one of the end walls 8. Furthermore, an edge 16 of the second side wall 6 is generally coincident with a second edge 18 of the end wall 8.
The edge 12 of the side wall 4 is retained in a position generally coincident with the edge 14 of the end wall 8 by means of a folded web portion 20 extending between said edges 12,14 and by means of the first tab portion 2. The edge 16 of the second side wall 6 is retained in a position generally coincident with the opposite edge 18 of the end wall 8 by means of a second tab portion 22 which extends from the full length of the edge 16 of the second side wall 6.
Both the first and second tabs 2,22 are located in abutment with the exterior surface of the end wall 8 and secured thereto by means of an adhesive (as most clearly shown in Figure 5 of the accompanying drawings). It will be seen that the second tab 22 has a free edge 24 having a profile shaped to receive and locate around the first tab portion 2 when the two tab portions 2,22 are adhered to the end wall 8. In other word, the first tab portion 2 fits within the profile of the edge 24 of the second tab portion 22 so that the two tab portions 2,22 combine with one another to substantially exactly cover the exterior surface of the end wall 8. It will be appreciated however that the two tab portions 2,22 may be shaped and sized so that they do not entirely cover the end wall 8 and do not fit together. Specifically, the second tab portion 22 may be significantly smaller than in the embodiment of the accompanying drawings. As a result, the two tab portions 2,22 may be significantly spaced from one another in the assembled container 1.
The edge 12 of the first side wall 4 is primarily retained in position generally coincident with the edge 14 of the first end wall 8 by means of the web portion 20 extending between said edges 12, 14. More specifically, the web portion 20 is provided with a fold line about which, in the assembled container 1 the web portion 20 is folded to provide a first part 28 of the web portion 20 on one side of the fold line 26 and a second part 30 of the web portion 20 on the other side of the fold line 26. The web portion 20 is folded inwardly into the interior of the container 1 and located so that the two parts 28,30 of the web portion 20 are adjacent and abutting one another. Furthermore, the two parts 28,30 of the web portion 20 are secured to one another by means of an adhesive. In addition, the first part 28 of the web portion 20 is secured to the interior surface of the first side wall 4 by means of an adhesive.
The location of the web portion 20 in abutment with the interior surface of the first side wall 4 is shown in Figure 4 wherein the folded web portion 20 is shown in phantom.
Whilst the adhering of the two parts 28,30 of the web portion 20 to one another and of the first part 28 of the web portion 20 to the side wall 4 is a primary means by which the edge 12 of the side wall 4 is retained generally coincident of the edge 14 of the end wall 8, it will be understood by the person skilled in the art that the integrity of this structural connection is supported by the means of the first tab portion 2 being secured to the exterior surface of the end wall 8 by means of adhesive. The second end wall 10 is connected to the first side wall 4 by means of a fold line 32 and to the second 6 by means of a further fold line 34. Also, the two rectangular end walls 8,10 are connected to one another along a common minor side by means of a yet further fold line 36.
The container 1 further comprises a closure or lid 38 having a window 40 provided therein. The window 40 may be provided with a transparent material so as to allow the contents of the container 1 to be viewed whilst ensuring the interior of the container 1 remains sealed from the external environment. The closure 38 is inwardly secured to the first side wall 4 by means of a fold line 42. The closure 38 is sized so as to cover and overlap the opening 44 to the container 1. The overlapping portions of the closure 38 are secured to tabs 46 foldably connected to the free edge of the two side walls 4,6 and the second end wall 10 by means of fold lines 48. The first end wall 8 is not provided with such a tab 46, although such a tab 46 is foldably connected to the free edge of the second tab portion 22. The closure 38 is secured to the tabs 46 by means of an adhesive and a seal is thereby provided.
The second side wall 6 is bisected by a fold line 50 extending from intersection of fold line 34 (between the second end wall 10 and the second side wall 6) and the fold line 36 (between the two end walls 8,10). In the assembled container 1, the second side wall 6 is not folded about the said bisecting fold line 50. However, in a partially assembled container wherein only the first part 28 of the web portion 20 has been secured to the side wall 4 and the second tab portion 22 has been secured to the end wall 8, the partially assembled container may be arranged in a flat planar configuration by folding the second side wall 6 onto itself about said bisecting folde line 50.
The container 1 is assembled from a planar blank of a resiliently bendable/foldable material, such as cardboard. The blank 100 from which the container 1 is assembled is shown in Figure 1 with a partly assembled blank show in Figure 2. In Figure 1, fold lines marked with the letter "a" denote a line about which the portions of blank located either side of the line are rotated upwardly out of the page. Conversely, fold lines marked with the letter "z" denote a line about which the portions of blank located either side of the line are effectively rotated downwardly into the page during assembly of the container 1. Furthermore, lines marked with the letter "c" are cut between points denoted by the letter "x". This cutting of the blank allows for a separation of a portion of blank from another portion of blank thereby further allowing said portions to be moved relative to one another.
Accordingly, it will be seen that the first tab portion 2 is cut from material extending between the edge 12 of the first side wall 4 and the edge 14 of the first end wall 8 and which would otherwise form another part of the web portion 20. The part of the edge 12 of the first side wall 4 from which the tab portion 2 extends is located centrally along said edge 12. The web portion 20 therefore extends from parts 102,104 of the edge 12 of the first side wall 4 which are located either side of the part 106 of the edge 12 from which the tab portion 2 extends. The part 106 of the edge 12 from which the tab portion extends is approximately sixty-five percent of the total length of the edge 12.
It will be apparent to a person skilled in the art that the tab portion 2 may be provided with a different size or a shape to that shown in accompanying drawings. It will also be apparent to a reader skilled in the art that one or more tab portions 2 may extend from the edge 12 of the first side door 4.
During manufacture of the container 1, the final steps of the assembly process may include the step of folding the first tab portion 2 into abutment with the exterior of the end wall 8. This step may be completed by a member of assembly machinery abuting the tab portion 2 as the partially assembled container is moved passed said member (not shown in the accompanying drawings). As the partially assembled container (or blank) is moved past said member (perhaps on a conveyer belt or via the automated machinery) the member presses against the tab portion 2 and bends/folds the tab portion 2 against the first end wall 8. Adhesive previously provided on the tab portion 2 and/or end wall 8 secures the tab portion 2 and end wall 8 together.
It will also be appreciated by the reader skilled in the art that the tab portion 2 provides a tamper evident feature.
The present invention is not limited to the specific embodiment described above. Alternative arrangements and suitable materials will be apparent to a reader skilled in the art.

Claims

Claims:
1. A container (1) comprising a first wall (4) having an edge (12), a second wall (8) having an edge (14), and a web portion (20) extending between said edges (12,14) of the first and second walls (4,8), the first and second walls (4,8) being located adjacent one another along said edges (12,14), wherein the container further comprises a tab portion (2) extending from said edge (12) of the first wall (4) so as to be located on an exterior surface of the second wall (8).
2. A container as claimed in claim 1, wherein the tab portion (2) and web portion (20) extend from different parts of said edge (12) of the first wall (4).
3. A container as claimed in claim 2, wherein the web portion extends from parts (102,104) of said edge of the first wall which are located either side of a part (106) of said edge of the first wall from which the tab portion extends.
4. A container as claimed in claim 3, wherein the part (106) of said edge of the first wall from which the tab portion extends is located centrally along said edge.
5. A container as claimed in claim 3 or 4, wherein the part (106)of said edge of the first wall from which the tab portion extends is a majority length of the total length of said edge.
6. A container as claimed in claim 5, wherein the part of said edge of the first wall from which the tab portion extends is approximately 65% of the total length of said edge (12).
7. A container as claimed in any of the preceding claims, wherein the tab portion (2) is hingedly connected to said edge (12) of the first wall (4).
8. A container as claimed in claim 7, wherein the hinge connection of the tab portion to said edge of the first wall is provided by means of a fold line, at said edge of the first wall, in a unitary piece of material from which the first wall (4) and tab portion (2) are formed.
9. A container as claimed in any of the preceding claims, wherein the web portion (20) is hingedly connected to said edge (12) of the first wall (4).
10. A container as claimed in claim 9, wherein the hinge connection of the web portion to said edge of the first wall is provided by means of a fold line, at said edge of the first wall, in a unitary piece of material from which the first wall and web portion are formed.
11. A container as claimed in any of the preceding claims, wherein the first wall (4), the web portion (20) and the tab portion (2) are unitary with one another and wherein the web and tab portions are formed from material extending from a fold line defining said edge of the first wall, the material being cut and thereby separated into two portions, one portion being the web portion and the other portion being the tab portion.
12. A container as claimed in any of the preceding claims, wherein the web portion (20) is provided with a fold line (26) about which the web portion (20) is folded to provide a first part (28) of the web portion (20) on one side of the fold line (26) and a second part (30) of the web portion (20) on the other side of the fold line (26).
13. A container as claimed in claim 12, wherein a first part of the web portion located on one side of said fold line of the web portion and extending from said edge of the first wall is located on an interior surface of the first wall.
14. A container as claimed in claim 13, wherein said first part (28) of the web portion (20) is secured to said interior surface of the first wall (4).
15. A container as claimed in claim 13, wherein said first part of the web portion is secured to said interior surface of the first wall by means of an adhesive.
16. A container as claimed in any of claims 12 to 15, wherein the web portion is folded about said fold line of the web portion so that the first and second parts (28,30) of the web portion abut one another.
17. A container as claimed in claim 16, wherein the first and second parts are secured to one another.
18. A container as claimed in claim 17, wherein the first and second parts are secured to one another by means of adhesive.
19. A container as claimed in any of the preceding claims, wherein the tab portion is secured to said exterior surface of the second wall.
20. A container as claimed in claim 19, wherein the tab portion is secured to said exterior surface of the second wall by means of an adhesive.
21. A container as claimed in any of the preceding claims, wherein the container further comprises a third wall (6) and a second tab portion (22) extending from an edge of the third wall so as to be located on an exterior surface of the second wall.
22. A container as claimed in claim 21, wherein the second tab portion (22) is secured to said exterior surface of the second wall (8).
23. A container as claimed in claim 21, wherein the second tab portion (22) is secured to said exterior surface of the second wall (8) by means of an adhesive.
24. A container as claimed in any of claims 21 to 23, wherein the second tab portion (22) has a shape such that an edge (24) of the second tab portion (22) locates adjacent an edge of the first tab portion (2).
25. A container as claimed in claim 24, wherein the first and second tab portions (2,22) have a size and shape such that they locate adjacent one another to form a combined surface having the same size and shape as the exterior surface of the second wall (8).
26. A container as claimed in claim 25, wherein said combined surface formed by the first and second tab portions entirely cover the exterior surface of the second wall.
27. A container as claimed in any of claims 21 to 26, wherein the third wall (6) is provided with a fold line (50) to provide a first part of the third wall on one side of the fold line and a second part of the third wall on the other side of the fold line.
28. A container as claimed in claim 27, wherein the first and second parts of the third wall lie in the same plane.
29. A container as claimed in any of the preceding claims, wherein the container is for receiving a food product.
30. A blank (100) for a container (1) as claimed in any of the preceding claims.
31. A blank as claimed in claim 30, wherein the edges (12,14) of the first and second walls (4,8) are positioned at substantially 90 degrees to one another prior to the blank being assembled into said container.
32. A blank as claimed in claim 31, wherein the web and tab portions (20,2) are formed from material extending between said edges (12,14) of the first and second walls.
33. A blank as claimed in claim 32, wherein said material extending between said edges of the first and second walls is cut so as to separate said material into two portions, one portion being the web portion (20) and the other portion being the tab portion (2) extending from the first wall.
34. A blank as claimed in any of claims 30 to 33, wherein. the blank lies in a single plane.
35. A blank as claimed in any of claims 30 to 34, wherein the blank is of a resiliently foldable material and is preferably of cardboard.
36. A method of manufacturing a container as claimed in any of claims 1 to 29, wherein. a blank (100) according to any of claims 30 to 35 is folded into said container (1).
37. A method as claimed in claim 36, comprising the step of locating the tab portion (2) on the exterior surface of the second wall (8) by moving the blank (100) or a partially assembled container such that the tab portion extending from the first wall (4) abuts and presses against a member and is thereby folded on to the exterior surface of the second wall (8) as the blank or partially assembled container moves past said member.
38. A method as claimed in claim 37, wherein adhesive is applied to the tab portion extending from the first wall and/or to the exterior surface of the second wall prior to said tab portion being folded on to the exterior surface of the second wall as the blank or partially assembled container moves past said member.
PCT/GB2011/050003 2010-01-06 2011-01-04 Container, blank therefor and method of manufacturing thereof WO2011083323A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1000164A GB2476795A (en) 2010-01-06 2010-01-06 Sealed sandwich container
GB1000164.2 2010-01-06

Publications (1)

Publication Number Publication Date
WO2011083323A1 true WO2011083323A1 (en) 2011-07-14

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ID=41819010

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Application Number Title Priority Date Filing Date
PCT/GB2011/050003 WO2011083323A1 (en) 2010-01-06 2011-01-04 Container, blank therefor and method of manufacturing thereof

Country Status (2)

Country Link
GB (1) GB2476795A (en)
WO (1) WO2011083323A1 (en)

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EP2559627A1 (en) 2011-08-18 2013-02-20 Van Genechten Packaging N.V. Folding carton or the like, blank for forming a folding carton and process for erecting the folding carton
GB2546772A (en) * 2016-01-28 2017-08-02 Keco Ltd Blank for a carton, and carton formed therefrom
US20230039635A1 (en) * 2021-08-09 2023-02-09 Coveris Flexibles Uk Limited Carton

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GB2500187B (en) * 2012-03-12 2014-02-12 Roland William Page Blanks and/or containers for food
GB2518231A (en) * 2013-09-16 2015-03-18 Coveris Flexibles Uk Ltd A blank for forming a carton
GB2524799B (en) * 2014-04-03 2017-01-11 William Page Roland Food containers

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US3040956A (en) * 1961-01-23 1962-06-26 American Can Co Display carton
WO2000015511A1 (en) * 1998-09-14 2000-03-23 The Mead Corporation A tray container and blank
WO2007012880A1 (en) * 2005-07-29 2007-02-01 Colpac Limited A container for food
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JP2008184215A (en) * 2007-01-31 2008-08-14 Dainippon Printing Co Ltd Foldable anti-liquid leakage carton

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EP2559627A1 (en) 2011-08-18 2013-02-20 Van Genechten Packaging N.V. Folding carton or the like, blank for forming a folding carton and process for erecting the folding carton
GB2546772A (en) * 2016-01-28 2017-08-02 Keco Ltd Blank for a carton, and carton formed therefrom
US20230039635A1 (en) * 2021-08-09 2023-02-09 Coveris Flexibles Uk Limited Carton

Also Published As

Publication number Publication date
GB201000164D0 (en) 2010-02-24
GB2476795A (en) 2011-07-13

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