WO2000064759A1 - Tray-like container - Google Patents

Tray-like container Download PDF

Info

Publication number
WO2000064759A1
WO2000064759A1 PCT/GB2000/001607 GB0001607W WO0064759A1 WO 2000064759 A1 WO2000064759 A1 WO 2000064759A1 GB 0001607 W GB0001607 W GB 0001607W WO 0064759 A1 WO0064759 A1 WO 0064759A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
base
side walls
fold lines
corners
Prior art date
Application number
PCT/GB2000/001607
Other languages
French (fr)
Inventor
Ernest Curry
Original Assignee
Field Group Plc
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 Field Group Plc filed Critical Field Group Plc
Priority to AU49324/00A priority Critical patent/AU4932400A/en
Publication of WO2000064759A1 publication Critical patent/WO2000064759A1/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
    • B65D5/2014—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 the central panel having a non rectangular shape
    • B65D5/2019—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 the central panel having a non rectangular shape with at least partially curved edges or the like
    • B65D5/2023—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 the central panel having a non rectangular shape with at least partially curved edges or the like the folded-up portions being folded along non-rectilinear fold-lines
    • 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
    • B65D5/4212—Information or decoration elements, e.g. content indicators, or for mailing
    • B65D5/4216—Cards, coupons or the like formed integrally with, or printed directly on, the container or lid
    • B65D5/4225—Cards, coupons or the like formed integrally with, or printed directly on, the container or lid as an extra panel or panels projecting out of the plane of the container
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/003—Articles enclosed in rigid or semi-rigid containers, the whole being wrapped

Definitions

  • This invention relates to tray-like containers made of cardboard, paperboard or similar lightweight foldable sheet material, primarily for containing foodstuffs, e.g. meat or fish, for display and sale.
  • One desirable way of sealing such a container, while still leaving its contents visible, is by shrink wrapping it, or at least tightly wrapping it, with plastics film, but this has tended to distort the container, for example by forcing its sides walls inwards.
  • a primary object of the present invention is to provide a container which is not so prone to such distortion.
  • a tray-like container made of cardboard, paperboard or similar lightweight foldable sheet material, having a base with side walls upstanding therearound and adjoining each other at corners of the base, each of the side walls being connected to the base by way of a pair of fold lines which are substantially laterally spaced from each other centrally of the length of the wall but converge together towards the said corners, to provide a region of transition between the plane of the base and the plane of the side wall.
  • the fold lines of each said pair meet each other at the base of their associated side wall at the said corners. It should however be understood that it is not necessary for the fold lines to meet each other. Thus their outer ends could still be laterally spaced apart, after converging together towards the said corners .
  • the said fold lines are straight, between the centre of the side wall and the said corners, thus defining an elongate diamond- shaped area between them. Many other configurations are possible, however, within the constraints of the fold lines being substantially spaced from each other centrally of the wall but converging together towards the corners.
  • the fold lines could be straight and parallel with each other over a substantial distance in the central region of the wall and then converge together outwardly, to define a flattened six- sided shape, or they could be curved over their whole length to define a shape similar to a convex lens.
  • the said side walls are preferably outwardly inclined from the vertical, which also helps to prevent them from collapsing inwardly.
  • a top cover flap is provided on at least one of the side walls, to extend partially over the top of the container.
  • a flap may be printed with information relating to the contents of the container.
  • a said flap is provided on each of the longer sides and on one of the shorter sides, the flap on the shorter side overlying those on the longer sides.
  • the scope of the invention also extends to a blank for making a container as described above .
  • Figure 1 is a plan view of a blank for making a container according to the invention
  • Figure 2 is a perspective view of the erected container, with its top cover flaps open;
  • Figure 3 is a perspective view of the erected container when shrink wrapped;
  • Figure 4 is a cross-section of the container alone, on the line A-A of Figure 3;
  • Figure 5 is a similar cross-section on the line B-B of Figure 3.
  • a cardboard blank for making a tray-like container for the display and sale of foodstuffs comprises an oblong base panel 1, two long side wall panels 2 and 3, and two short side wall panels 4 and 5.
  • Top cover flaps 6 and 7 are connected to each of the side wall panels 2 and 3 and a further top cover flap 8 is connected to the side wall panel 4.
  • Gluing tabs 9 are provided on the ends of the wall panels 2 and 3, for securing to the inside faces of the wall panels 4 and 5 in the erected tray.
  • Each of the side wall panels is connected to the base panel 1 by way of a pair of fold lines 10 and 11 which are spaced apart laterally at the centre of the length of the wall panel but converge together to meet at the base of the wall, at the corners of the base panel. All of the fold lines 10 and 11 are straight, so that the pairs of fold lines define respective elongate diamond shaped areas 12 between themselves.
  • the tray is erected by folding the side wall panels up about the pairs of fold lines 10 and 11 and gluing the tabs 9 to the inside faces of the side wall panels 4 and 5, so as to form an oblong tray with outwardly inclined side walls, in which the areas 12 between the fold lines 10 and 11 provide regions of transition between the plane of the base and the planes of the side walls.
  • an article of foodstuff in this case a piece of fish 13 is packed in the tray before the top cover flaps 6, 7 and 8 are folded in, with the flap 8 on top, and the package is then shrink wrapped as indicated in Figure 3.
  • the outer surface of the top cover flap 8 is printed with any desired descriptive matter relating to the packed product, and printing may also be applied, in whatever manner is desired, to the top cover flaps 6 and 7 and indeed to the exterior surfaces of the side walls and the base.

Landscapes

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

Abstract

A cardboard tray, primarily for display and sale of foodstuffs, having a base (1) and side walls (2-5), each of the side walls being connected to the base by way of a pair of fold lines (10, 11) which are substantially laterally spaced from each other centrally of the length of the wall but converge together and meet at the corners of the tray. The areas between the fold lines provide a transition between the planes of the side walls and the base, to help to prevent the walls from collapsing inwardly when the tray is shrink wrapped.

Description

Tray-like container
This invention relates to tray-like containers made of cardboard, paperboard or similar lightweight foldable sheet material, primarily for containing foodstuffs, e.g. meat or fish, for display and sale. One desirable way of sealing such a container, while still leaving its contents visible, is by shrink wrapping it, or at least tightly wrapping it, with plastics film, but this has tended to distort the container, for example by forcing its sides walls inwards. A primary object of the present invention is to provide a container which is not so prone to such distortion. According to the present invention there is provided a tray-like container made of cardboard, paperboard or similar lightweight foldable sheet material, having a base with side walls upstanding therearound and adjoining each other at corners of the base, each of the side walls being connected to the base by way of a pair of fold lines which are substantially laterally spaced from each other centrally of the length of the wall but converge together towards the said corners, to provide a region of transition between the plane of the base and the plane of the side wall.
We have found that connecting the side walls to the base in this fashion has the effect of at least reducing the tendency for the walls to collapse inwardly when the tray is shrink wrapped, or tightly wrapped, in plastics film.
Preferably the fold lines of each said pair meet each other at the base of their associated side wall at the said corners. It should however be understood that it is not necessary for the fold lines to meet each other. Thus their outer ends could still be laterally spaced apart, after converging together towards the said corners . In a preferred form of the invention the said fold lines are straight, between the centre of the side wall and the said corners, thus defining an elongate diamond- shaped area between them. Many other configurations are possible, however, within the constraints of the fold lines being substantially spaced from each other centrally of the wall but converging together towards the corners. For example the fold lines could be straight and parallel with each other over a substantial distance in the central region of the wall and then converge together outwardly, to define a flattened six- sided shape, or they could be curved over their whole length to define a shape similar to a convex lens.
The said side walls are preferably outwardly inclined from the vertical, which also helps to prevent them from collapsing inwardly.
Preferably a top cover flap is provided on at least one of the side walls, to extend partially over the top of the container. Such a flap may be printed with information relating to the contents of the container. In a preferred form of the invention in which the container is four-sided and oblong, a said flap is provided on each of the longer sides and on one of the shorter sides, the flap on the shorter side overlying those on the longer sides.
The scope of the invention also extends to a blank for making a container as described above .
An embodiment of the invention will now be described by way of example and with reference to the accompanying drawings, in which: -
Figure 1 is a plan view of a blank for making a container according to the invention;
Figure 2 is a perspective view of the erected container, with its top cover flaps open; Figure 3 is a perspective view of the erected container when shrink wrapped;
Figure 4 is a cross-section of the container alone, on the line A-A of Figure 3; and
Figure 5 is a similar cross-section on the line B-B of Figure 3.
Referring first to Figure 1, a cardboard blank for making a tray-like container for the display and sale of foodstuffs comprises an oblong base panel 1, two long side wall panels 2 and 3, and two short side wall panels 4 and 5. Top cover flaps 6 and 7 are connected to each of the side wall panels 2 and 3 and a further top cover flap 8 is connected to the side wall panel 4. Gluing tabs 9 are provided on the ends of the wall panels 2 and 3, for securing to the inside faces of the wall panels 4 and 5 in the erected tray.
Each of the side wall panels is connected to the base panel 1 by way of a pair of fold lines 10 and 11 which are spaced apart laterally at the centre of the length of the wall panel but converge together to meet at the base of the wall, at the corners of the base panel. All of the fold lines 10 and 11 are straight, so that the pairs of fold lines define respective elongate diamond shaped areas 12 between themselves.
Referring now to Figures 2 and 3, the tray is erected by folding the side wall panels up about the pairs of fold lines 10 and 11 and gluing the tabs 9 to the inside faces of the side wall panels 4 and 5, so as to form an oblong tray with outwardly inclined side walls, in which the areas 12 between the fold lines 10 and 11 provide regions of transition between the plane of the base and the planes of the side walls. In use, an article of foodstuff, in this case a piece of fish 13, is packed in the tray before the top cover flaps 6, 7 and 8 are folded in, with the flap 8 on top, and the package is then shrink wrapped as indicated in Figure 3. The outer surface of the top cover flap 8 is printed with any desired descriptive matter relating to the packed product, and printing may also be applied, in whatever manner is desired, to the top cover flaps 6 and 7 and indeed to the exterior surfaces of the side walls and the base.
As previously mentioned, it has been found that the configuration of the fold lines 10 and 11 between the base and the side walls, and the outwardly inclined arrangement of the walls themselves, act to prevent inward collapse of the walls when the pack is tightly shrink wrapped. The ability to print descriptive matter on the exterior surfaces of the cardboard tray is a further advantage, as compared with previous proposals using a shrink wrapped plastics tray.

Claims

Claims :
1. A tray-like container made of cardboard, paperboard or similar lightweight foldable sheet material, having a base with side walls upstanding therearound and adjoining each other at corners of the base, each of the side walls being connected to the base by way of a pair of fold lines which are substantially laterally spaced from each other centrally of the length of the wall but converge together towards the said corners, to provide a region of transition between the plane of the base and the plane of the side wall.
2. A container as claimed in claim 1, wherein the fold lines of each said pair meet each other at the base of their associated side wall at the said corners.
3. A container as claimed in claim 2, wherein the said fold lines are straight, between the centre of the length of the associated side wall and the said corners.
4. A container as claimed in any preceding claim, wherein the said side walls are outwardly inclined.
5. A container as claimed in any preceding claim, wherein a top cover flap is provided on at least one of the said side walls, to extend partially over the top of the container.
6. A container as claimed in claim 5, which is four- sided and has a said top cover flap on three of its side walls .
7. A container as claimed in claim 6, which is oblong and has a said top cover flap on each of its longer sides and on one of its shorter sides.
8. A container as claimed in claim 1, substantially as hereinbefore described with reference to the accompanying drawings .
9. A blank for making a container as claimed in any of claims 1 to 8.
PCT/GB2000/001607 1999-04-26 2000-04-26 Tray-like container WO2000064759A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49324/00A AU4932400A (en) 1999-04-26 2000-04-26 Tray-like container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9909573A GB2349381A (en) 1999-04-26 1999-04-26 A tray
GB9909573.9 1999-04-26

Publications (1)

Publication Number Publication Date
WO2000064759A1 true WO2000064759A1 (en) 2000-11-02

Family

ID=10852280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001607 WO2000064759A1 (en) 1999-04-26 2000-04-26 Tray-like container

Country Status (3)

Country Link
AU (1) AU4932400A (en)
GB (1) GB2349381A (en)
WO (1) WO2000064759A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378459A2 (en) * 2002-07-01 2004-01-07 Robor Cartons Limited Sandwich packaging
US9540143B2 (en) 2013-10-08 2017-01-10 Cascades Canada Ulc Poultry tray and method of packaging poultry using same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2171347B1 (en) * 2000-04-27 2003-10-01 Kappa Iberoamericana Sa FORMAL STABILIZATION SYSTEM FOR CARTON BOXES.
ES2970627T3 (en) * 2018-11-20 2024-05-29 Graphic Packaging Int Llc Adjustable tray, die-cutting plate for forming a tray and procedure for forming a tray
EP4357262A1 (en) * 2022-10-18 2024-04-24 Bahlsen GmbH & Co. KG Carton tray

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB927238A (en) * 1960-09-09 1963-05-29 Field Sons & Co Ltd Improvements in lids for boxes, cartons and the like
FR2337084A1 (en) * 1975-12-30 1977-07-29 Migros Stabilising base for cardboard box - has flat base and four sides folded upwards from carton blank
US4173655A (en) * 1978-06-08 1979-11-06 International Paper Company Poultry tray
US4431128A (en) * 1982-02-10 1984-02-14 Hub Folding Box Co., Inc. One piece blank for nesting double tray, coverable, burger and fries box

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124160A (en) * 1977-07-29 1978-11-07 American Can Company Round tray
US5377903A (en) * 1994-06-16 1995-01-03 International Paper Company Reduced warp paperboard tray

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB927238A (en) * 1960-09-09 1963-05-29 Field Sons & Co Ltd Improvements in lids for boxes, cartons and the like
FR2337084A1 (en) * 1975-12-30 1977-07-29 Migros Stabilising base for cardboard box - has flat base and four sides folded upwards from carton blank
US4173655A (en) * 1978-06-08 1979-11-06 International Paper Company Poultry tray
US4431128A (en) * 1982-02-10 1984-02-14 Hub Folding Box Co., Inc. One piece blank for nesting double tray, coverable, burger and fries box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1378459A2 (en) * 2002-07-01 2004-01-07 Robor Cartons Limited Sandwich packaging
GB2391212A (en) * 2002-07-01 2004-02-04 Robor Cartons Ltd Sandwich packaging
EP1378459A3 (en) * 2002-07-01 2005-02-09 Robor Cartons Limited Sandwich packaging
US9540143B2 (en) 2013-10-08 2017-01-10 Cascades Canada Ulc Poultry tray and method of packaging poultry using same

Also Published As

Publication number Publication date
GB9909573D0 (en) 1999-06-23
GB2349381A (en) 2000-11-01
AU4932400A (en) 2000-11-10

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