WO1996033916A1 - Punched sheet for a tray-like packaging - Google Patents

Punched sheet for a tray-like packaging Download PDF

Info

Publication number
WO1996033916A1
WO1996033916A1 PCT/SE1996/000546 SE9600546W WO9633916A1 WO 1996033916 A1 WO1996033916 A1 WO 1996033916A1 SE 9600546 W SE9600546 W SE 9600546W WO 9633916 A1 WO9633916 A1 WO 9633916A1
Authority
WO
WIPO (PCT)
Prior art keywords
fold lines
long sides
bottom part
short
tray
Prior art date
Application number
PCT/SE1996/000546
Other languages
French (fr)
Inventor
Lars Brus
Rolf Samuelsson
Magnus Renman
Original Assignee
Sca Packaging Holding B.V.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20398100&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1996033916(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sca Packaging Holding B.V. filed Critical Sca Packaging Holding B.V.
Priority to AT96912379T priority Critical patent/ATE207439T1/en
Priority to AU55210/96A priority patent/AU5521096A/en
Priority to EP96912379A priority patent/EP0824459B1/en
Priority to DE69616307T priority patent/DE69616307T2/en
Priority to DK96912379T priority patent/DK0824459T3/en
Publication of WO1996033916A1 publication Critical patent/WO1996033916A1/en
Priority to NO974920A priority patent/NO974920L/en
Priority to FI974066A priority patent/FI974066A/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
    • B65D5/28—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 extensions of sides permanently secured to adjacent sides, with sides permanently secured together by adhesive strips, or with sides held in place solely by rigidity of material

Definitions

  • the present invention relates to a punched blank which is intended to form a tray comprising a bottom part, two long sides and two short sides, which sides are folded up from the bottom part and united at their ends for completing the tray.
  • the planar blank is primarily intended to consist of cardboard or corrugated fibreboard.
  • Trays of fibreboard or other materials are well known. They are typically produced by punching a blank of corrugated fibreboard which is provided with folding lines for the short and long sides, whereupon these sides are folded up and united with each other at the ends to thereby form vertical corners compared to the bottom part.
  • the blank is usually punched out and provided with narrow recesses between the intended long sides and the intended short sides at the corners of the bottom part, in such a way that the long sides are given their final length and the short sides are thereby provided with flaps which are folded in inside the long sides after folding up. These flaps are provided with glue and glued to the long sides after folding.
  • the folding, and accordingly the completion, of the tray normally occurs automatically and the glue is cured after a few seconds, whereby the tray gets its strength.
  • the trays which are produced according to said methods and which preferably consist of fibreboard are used for differ ⁇ ent purposes. They may for example be used to carry beer cans or completely different objects, such as vegetables.
  • a normal tray usually has an outwardly curved long side as a result of the fact that the moveability of the cans in the tray influences the long sides with outwardly-directed forces during normal manual handling. This is of course a great disadvantage as the tray can thereby easily collapse due to folding of the long sides.
  • the problems with the known trays have therefore been solved according to the present invention by creating a punched blank for a tray comprising a bottom part, two long sides and two short sides in one piece with the bottom part and marked with respect to this by pre-formed fold lines and intended to be folded up and united with each other at the ends, which blank is characterized in that the folding lines between the bottom part and at least the long sides are directed outwardly at the ends and form an angle with the middle part of the fold lines of 2-20°.
  • the blank consists of corrugated fibreboard, plastics or the like.
  • the punched blank according to the invention has short sides which are longer than the width of the bottom part.
  • the punched blank is provided with straight fold markings, at a 90° angle with respect to the fold lines between the bottom part and the long sides in the long sides at the border between the middle part of the fold lines and the outwardly-directed end part of these.
  • straight fold markings are made, at a 90° angle with respect to the fold lines between the bottom part and both the short and long sides at the border between the middle part of the fold lines and the outwardly-directed end part of these on both the short and long sides.
  • the plane blank in the figure which consists of corrugated fibreboard, comprises a bottom part 1 of substantially rectangular shape and two long sides 2 and two short sides 3. Between the short and the long sides 3 and 2 slots 4 have been punched in such a way that the long sides 2 have been given their final length and the short sides 3 have been formed with flaps 5.
  • fold lines have been pressed into the cardboard. These fold lines consist of a straight middle part 6, but have been directed outwardly at the ends and form a separate part 7 of the fold line. This outwardly-directed part 7 of the fold lines may form an angle of 2-20° with respect to the middle part 6 of the fold lines. These outwardly-directed parts 7 of the fold lines may be made only in the long sides whereas the short sides 3 may have a fold line 6 which extends all the way to the corners.
  • the middle parts 6 of the fold lines have been drawn straight in the figure, but they may also consist of a part of a circle having a large radius which practically gives a straight line for the circular arc.
  • both the short and the long sides 3 and 2 are folded up from the bottom part 1 at their fold lines and the flaps 5 are glued to the inside of the long sides 2.
  • an inwardly-directed force will arise in the long sides 2.
  • These folds will be greater, the greater the angle the outwardly-directed parts 7 has compared to the middle parts 6 of the fold lines.
  • By creating an inwardly directed force in the long sides they will not tend to be cracked outwardly. They will instead rest against, and press against, the contents, for example beer cans in the tray. The same will of course occur even at the short sides if these have been provided with outwardly-directed end parts 7 of the fold lines.
  • the effect is also obtained that the bottom part at the short sides will be given a smoother transition to the short sides 3. This is an advantage for the strength of the tray.
  • the figure shows further fold indications 8 on both the long and the short sides at the border between the middle parts 6 and the outwardly-directed parts 7 of the fold lines. These fold markings 8 are made to make the tray more easily able to adopt its final shape, but they are not necessary for the function of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Sheet Holders (AREA)
  • Packaging For Recording Disks (AREA)

Abstract

The invention relates to a punched blank for a tray-like package. It comprises a bottom part (1), two long sides (2) and two short sides (3) in one piece with the bottom part (1) and marked with respect to this by fold lines. The invention is characterized in that the fold lines (7) between the bottom part (1) and at least the long sides (2) are directed outwardly at the ends and form an angle with the middle part (6) of the fold lines of 2-20°.

Description

PUNCHED SHEET FOR A TRAY-LIKE PACKAGING
TECHNICAL FIELD:
The present invention relates to a punched blank which is intended to form a tray comprising a bottom part, two long sides and two short sides, which sides are folded up from the bottom part and united at their ends for completing the tray. The planar blank is primarily intended to consist of cardboard or corrugated fibreboard.
PRIOR ART:
Trays of fibreboard or other materials are well known. They are typically produced by punching a blank of corrugated fibreboard which is provided with folding lines for the short and long sides, whereupon these sides are folded up and united with each other at the ends to thereby form vertical corners compared to the bottom part. The blank is usually punched out and provided with narrow recesses between the intended long sides and the intended short sides at the corners of the bottom part, in such a way that the long sides are given their final length and the short sides are thereby provided with flaps which are folded in inside the long sides after folding up. These flaps are provided with glue and glued to the long sides after folding. The folding, and accordingly the completion, of the tray normally occurs automatically and the glue is cured after a few seconds, whereby the tray gets its strength.
If materials other than corrugated fibreboard are used, it is possible to proceed in the same way as above, although completely different production methods can also be used. The trays which are produced according to said methods and which preferably consist of fibreboard are used for differ¬ ent purposes. They may for example be used to carry beer cans or completely different objects, such as vegetables.
TECHNICAL PROBLEM:
Depending on the field of application different demands are put on the different trays. For example, if the tray is to be used for beer cans it is important that the tray, if it is carried at the short sides, does not crack at the middle part due to the weight of the beer cans. A normal tray usually has an outwardly curved long side as a result of the fact that the moveability of the cans in the tray influences the long sides with outwardly-directed forces during normal manual handling. This is of course a great disadvantage as the tray can thereby easily collapse due to folding of the long sides.
THE SOLUTION: The problems with the known trays have therefore been solved according to the present invention by creating a punched blank for a tray comprising a bottom part, two long sides and two short sides in one piece with the bottom part and marked with respect to this by pre-formed fold lines and intended to be folded up and united with each other at the ends, which blank is characterized in that the folding lines between the bottom part and at least the long sides are directed outwardly at the ends and form an angle with the middle part of the fold lines of 2-20°.
According to the invention it is suitable if the fold lines between the bottom part and both the short and long sides are directed outwardly at the ends.
According to the invention it is further suitable that the blank consists of corrugated fibreboard, plastics or the like. The punched blank according to the invention has short sides which are longer than the width of the bottom part.
According to the invention the punched blank is provided with straight fold markings, at a 90° angle with respect to the fold lines between the bottom part and the long sides in the long sides at the border between the middle part of the fold lines and the outwardly-directed end part of these.
According to the invention it is further suitable that straight fold markings are made, at a 90° angle with respect to the fold lines between the bottom part and both the short and long sides at the border between the middle part of the fold lines and the outwardly-directed end part of these on both the short and long sides.
DESCRIPTION OF THE FIGURE:
The invention will now be described in more detail in connection with the attached drawing which shows an embodiment of the invention in the shape of a punched blank of corrugated fibreboard.
DETAILED DESCRIPTION: The plane blank in the figure, which consists of corrugated fibreboard, comprises a bottom part 1 of substantially rectangular shape and two long sides 2 and two short sides 3. Between the short and the long sides 3 and 2 slots 4 have been punched in such a way that the long sides 2 have been given their final length and the short sides 3 have been formed with flaps 5.
To mark the short and long sides, pre-formed fold lines have been pressed into the cardboard. These fold lines consist of a straight middle part 6, but have been directed outwardly at the ends and form a separate part 7 of the fold line. This outwardly-directed part 7 of the fold lines may form an angle of 2-20° with respect to the middle part 6 of the fold lines. These outwardly-directed parts 7 of the fold lines may be made only in the long sides whereas the short sides 3 may have a fold line 6 which extends all the way to the corners. The middle parts 6 of the fold lines have been drawn straight in the figure, but they may also consist of a part of a circle having a large radius which practically gives a straight line for the circular arc.
When the punched blank is to be formed into a tray, both the short and the long sides 3 and 2 are folded up from the bottom part 1 at their fold lines and the flaps 5 are glued to the inside of the long sides 2. By forming the fold lines in that way, according to the invention, with the outwardly directed ends 7, an inwardly-directed force will arise in the long sides 2. These folds will be greater, the greater the angle the outwardly-directed parts 7 has compared to the middle parts 6 of the fold lines. By creating an inwardly directed force in the long sides they will not tend to be cracked outwardly. They will instead rest against, and press against, the contents, for example beer cans in the tray. The same will of course occur even at the short sides if these have been provided with outwardly-directed end parts 7 of the fold lines.
Apart from the effect that the long sides 2 will press inwardly against the contents, the effect is also obtained that the bottom part at the short sides will be given a smoother transition to the short sides 3. This is an advantage for the strength of the tray.
With normal trays without the outwardly-directed parts 7, high stresses will usually arise at the short sides 3. It has surprisingly been shown that these stresses are strongly decreased with the construction according to the present invention and it is possible to load the tray with a load which is about 20% greater than with conventional trays.
The figure shows further fold indications 8 on both the long and the short sides at the border between the middle parts 6 and the outwardly-directed parts 7 of the fold lines. These fold markings 8 are made to make the tray more easily able to adopt its final shape, but they are not necessary for the function of the invention.
The invention is not limited to the embodiment shown and it can be varied in different ways within the scope of the claims.

Claims

CLAIMS:
1. Punched blank for a tray-like package comprising a bottom part (1), two long sides (2) and two short sides (3) in one piece with the bottom part (1) and marked with respect to this by fold lines (6) and being intended to be folded up and united with each other at the ends, c h a r ¬ a c t e r i z e d i n that the fold lines (7) between the bottom part and at least the long sides are directed outwardly at the ends and form an angle with the middle part (6) of the fold lines of 2-20°.
2. Punched blank according to claim 1, c h a r a c ¬ t e r i z e d i n that the fold lines (7) between the bottom part (1) and both the short and the long sides (3, 2) are directed outwardly at the ends.
3. Punched blank according to claim 1 or 2, c h a r ¬ a c t e r i z e d i n that the blank consists of corru¬ gated fibreboard, plastics or the like.
4. Punched blank according to any one of claims 1-3, c h a r a c t e r i z e d i n that the short sides (3) are longer than the width of the bottom part (1).
5. Punched blank according to any one of claims 1-4, c h a r a c t e r i z e d i n that straight fold markings (8) are made at a 90° angle with respect to the fold lines
(6) between the bottom part (1) and the long sides (2), on the long sides (2) at the border between the middle part (6) of the fold lines and the outwardly-directed end part
(7) of these.
6. Punched blank according to any one of claims 1-5, c h a r a c t e r i z e d i n that straight fold markings (8) are made at a 90° angle with respect to the fold lines (6) between the bottom part (1) and both the short and long sides (3, 2), at the border between the middle part (6) of the fold lines and the outwardly-directed end part (7) of these on both the short and long sides (3, 2).
PCT/SE1996/000546 1995-04-27 1996-04-25 Punched sheet for a tray-like packaging WO1996033916A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT96912379T ATE207439T1 (en) 1995-04-27 1996-04-25 CUT FOR A TRAY-SHAPED PACKAGING
AU55210/96A AU5521096A (en) 1995-04-27 1996-04-25 Punched sheet for a tray-like packaging
EP96912379A EP0824459B1 (en) 1995-04-27 1996-04-25 Punched sheet for a tray-like packaging
DE69616307T DE69616307T2 (en) 1995-04-27 1996-04-25 CUTTING FOR A SHELL-SHAPED PACKAGING
DK96912379T DK0824459T3 (en) 1995-04-27 1996-04-25 Punched item for a tray-like packaging
NO974920A NO974920L (en) 1995-04-27 1997-10-24 Punched sheet for trawl-like packing
FI974066A FI974066A (en) 1995-04-27 1997-10-27 Punched sheet for a tray-like package

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501548A SE507070C2 (en) 1995-04-27 1995-04-27 Punched sheet for a tray-like package
SE9501548-3 1995-04-27

Publications (1)

Publication Number Publication Date
WO1996033916A1 true WO1996033916A1 (en) 1996-10-31

Family

ID=20398100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000546 WO1996033916A1 (en) 1995-04-27 1996-04-25 Punched sheet for a tray-like packaging

Country Status (12)

Country Link
EP (1) EP0824459B1 (en)
AT (1) ATE207439T1 (en)
AU (1) AU5521096A (en)
DE (1) DE69616307T2 (en)
DK (1) DK0824459T3 (en)
ES (1) ES2167559T3 (en)
FI (1) FI974066A (en)
NO (1) NO974920L (en)
PT (1) PT824459E (en)
SE (1) SE507070C2 (en)
TR (1) TR199701262T1 (en)
WO (1) WO1996033916A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006130107A1 (en) * 2005-05-31 2006-12-07 Smurfit Packaging Ab Tray and method for erecting a tray

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US258183A (en) * 1882-05-16 Butter-tray
US1898962A (en) * 1931-03-02 1933-02-21 Hvistendahl Georg Dividing card for cigarette boxes
US3062429A (en) * 1956-04-04 1962-11-06 Lord Baltimore Press Inc Non-bulging package and method of making
DE2651415A1 (en) * 1975-12-30 1977-07-07 Migros BOX MADE OF FLEXIBLE MATERIAL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES198716Y (en) 1973-12-12 1975-11-16 Cartonajes International, S. A. FOLDING CONTAINER.
ES257204Y (en) 1981-03-28 1982-05-01 BOX FOR LIQUID, POWDER OR GRAIN PRODUCTS
ES258735Y (en) 1981-06-01 1982-06-16 A CONTAINER FOR STORAGE IN ARTICLE FREEZERS- WET FOOD

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US258183A (en) * 1882-05-16 Butter-tray
US1898962A (en) * 1931-03-02 1933-02-21 Hvistendahl Georg Dividing card for cigarette boxes
US3062429A (en) * 1956-04-04 1962-11-06 Lord Baltimore Press Inc Non-bulging package and method of making
DE2651415A1 (en) * 1975-12-30 1977-07-07 Migros BOX MADE OF FLEXIBLE MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006130107A1 (en) * 2005-05-31 2006-12-07 Smurfit Packaging Ab Tray and method for erecting a tray

Also Published As

Publication number Publication date
SE9501548D0 (en) 1995-04-27
FI974066A (en) 1997-11-17
PT824459E (en) 2002-04-29
SE9501548L (en) 1996-10-28
DK0824459T3 (en) 2002-01-28
ATE207439T1 (en) 2001-11-15
NO974920D0 (en) 1997-10-24
AU5521096A (en) 1996-11-18
DE69616307T2 (en) 2002-06-27
EP0824459B1 (en) 2001-10-24
EP0824459A1 (en) 1998-02-25
NO974920L (en) 1997-12-12
ES2167559T3 (en) 2002-05-16
FI974066A0 (en) 1997-10-27
TR199701262T1 (en) 1998-01-21
SE507070C2 (en) 1998-03-23
DE69616307D1 (en) 2001-11-29

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