EP0536103A1 - Aus Karton oder anderem faltbaren Material hergestellte Verpackung - Google Patents

Aus Karton oder anderem faltbaren Material hergestellte Verpackung Download PDF

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Publication number
EP0536103A1
EP0536103A1 EP92850230A EP92850230A EP0536103A1 EP 0536103 A1 EP0536103 A1 EP 0536103A1 EP 92850230 A EP92850230 A EP 92850230A EP 92850230 A EP92850230 A EP 92850230A EP 0536103 A1 EP0536103 A1 EP 0536103A1
Authority
EP
European Patent Office
Prior art keywords
flap
side wall
wall panels
delta
blank
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP92850230A
Other languages
English (en)
French (fr)
Inventor
Owe Axelsson
Frank Scheffler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akerlund and Rausing AB
Original Assignee
Akerlund and Rausing AB
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 Akerlund and Rausing AB filed Critical Akerlund and Rausing AB
Publication of EP0536103A1 publication Critical patent/EP0536103A1/de
Ceased legal-status Critical Current

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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
    • B65D5/10—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 self-locking flaps hinged to tubular body
    • 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
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/541—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps

Definitions

  • the present invention relates to a package of cardboard or other foldable material according to the preamble of claim 1. Such a package is intended primarily, though not exclusively, for packaging of block-shaped frozen food products.
  • package structures which are suitable for packaging block-shaped frozen products.
  • One of these structures is in the form of a package where the product to be packed is inserted into a pre-glued and erected package of the folding box type through one end of the folding box. This represents the technique identified as end- loading technique.
  • the other procedure involves the use of a larger opening for placing the product into the package.
  • top-loading which means that an opening corresponding to a broad side of a package blank is used for the insertion of the product.
  • the present invention relates to a package of the top-loading type which is especially well suited for deep frozen products, for instance strawberries, cloudberries, etc.
  • the packaging line used for this type of packing comprises an endless conveyor along which a package blank is transported which has been partially erected to form a tray-shaped bottom. A top part of the blank is unfolded to an open position to expose an opening corresponding to the broad side area of the blank.
  • the terms “bottom” and “top” relate to the orientation of the thus erected package with respect to the filling procedure.
  • the procedure on a packaging line of the present type involves a timed cycle of steps allowing an overall processing speed of up to around 60 packages per minute.
  • the deep frozen product in block-shaped form is placed onto the plastic coated broadside of the blank forming a "tray bottom" during the processing on the packaging line.
  • the ambient temperature causes a certain flow of melt water which is especially noticeable at the end corners of the filled and sealed package when it is removed from the packaging line.
  • the present invention provides a package formed from a blank of cardboard or other foldable material, comprising a bottom panel, opposite pairs of side wall panels integral with said bottom panel and foldable along creasing lines, and delta flap type of attachment flaps arranged between adjacent side wall panels for maintaining said blank in an erected state after folding said side wall panels along said creasing lines.
  • each delta type flap comprises a double delta flap substantially in the form of two congruent right angle triangles located immediately adjacent each cornerofthe bottom panel, said double delta flap having a height less than the height of said adjacent side wall panels.
  • the blank in the drawing is identified as a blank for a top-loaded package comprising a bottom panel 10, long side wall panels 11, 12, short side wall panels 13, 14, a top panel 15, short side wall panel 16,17 and a glue flap 18.
  • the bottom 10 and the top 15 do not actually act as top and bottom after the package has been filled and sealed. Instead, the combination of short wall panels 13, 14, 16 and 17 form a top and bottom respectively.
  • the figure represents the inside of the blank and this side as well as the outside is coated by a thermoplastic, heat sealable material, for instance polyethylene.
  • Reference numerals 20, 21 indicate the shape of a conventional full length double delta corner flap.
  • the square-shaped corner panel indicated in phantom lines 20 and representing a full length conventional corner flap, is divided into two right angle triangles by a crease line 21.
  • the conventional double delta flap is folded along line 21 and the triangular or delta shaped double folded material is placed against the outside or inside of one of the adjoining side walls and attached thereto.
  • this procedure requires contact heat sealing or other complex procedures for maintaining the "bottom" part of the blank in an erect position.
  • an arrangement which maintains the liquid-tight corner characteristics of the conventional double delta type of corner butwhich allows the use of simple tuck-in means for attachment of adjacent side walls to each other and maintaining them in an erect state.
  • the long side walls 11, 12 of the blank are provided with extended portions 22, 23, 24, 25, each one of such portions comprising a "mini" double delta flap 26, 27, 28, 29 having a height less than the height of the adjacent side walls.
  • Each mini double delta flap merges into a relatively larger tuck-in portion having a nose 30,31,32,33 directed away from the mini double delta flap when the package blank is laid flat.
  • Each nose 30, 31, 32, 33 is intended to be inserted into a respective slot formed by punched out lines 34, 35, 36, 37 in the short side wall panels 13, 14.
  • each flap 22, 23, 24, 25 at the outside of a respective one of the end panels 13, 14 with the nose 30, 31, 32, 33 inserted into the slot formed by a respective one of the lines 34, 35, 36, 37.
  • the mini triangles or deltas at the corner portions of the bottom panel 10 will also be placed at the outside of panels 13, 14. No explicit vertical line has been shown in the drawing for defining the extension orthe transition region between the double delta 26 and the remaining portion of the flap 22, but it is to be understood thatthe mini double delta form comprises two congruent right angle triangles of which one is located at each corner of the bottom panel 10.
  • the height of the double delta or the cathetus length of the corresponding right angle triangle is, as previously mentioned, less than the height of either of the adjacent side walls and in a preferred embodiment the double delta height (equal to the cathetus length of the right angle triangles in the drawing) falls in the interval of 1/10 to 1/5 of the side wall height.
  • the blank in the drawing is placed on an automatic line for erection, filling and sealing blanks of the actual type comprising a first station where the side wall panels 11, 12 and 13, 14 are erected and, according to the invention, the mini delta flaps 26, 27, 28, 29 together with remaining parts of flaps 22, 23, 24, 25, are folded up at the same time as respective side walls 12,11, such that the double folded mini deltas or mini triangles are placed at the outside of end panels 13, 14 and the noses 13, 31, 32, 33 inserted into respective slots 34, 35, 36, 37.
  • the erected tray part of the top-loaded package is transported to a filling station where a block of, for example, deep frozen berries is led down into the tray for further transport to a sealing station where the broad side panel 15 and end panel 16, 17 and glue panel 18 are folded down to cover the product.
  • Flaps 16, 17, 18 are glued to the outside of panels 13, 11 and 14, respectively, such that the tearing off of strip 19 opens up the cross section of the packaging end for allowing access to the product packed in the package.
  • the mini delta flaps have a crease line which defines the hypothenuse of the congruent triangles forming the double delta flap. This measure effectively avoids the risk that the double delta be accidentally pushed into the interior of the package which, of course, would result in leakage and other difficulties.
  • the bottom panel 10 may have a square shape so that the side wall panels 11, 12 and 13, 14 are of equal length. Although it is preferable that the side wall panels are of equal height, it will be apparent that the side wall panel 11 remote from the top panel may be of lesser height that the remaining side wall panels since the glue flap 18 effectively overlaps panel 11.
EP92850230A 1991-10-04 1992-09-30 Aus Karton oder anderem faltbaren Material hergestellte Verpackung Ceased EP0536103A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9112385U DE9112385U1 (de) 1991-10-04 1991-10-04
DE9112385U 1991-10-04

Publications (1)

Publication Number Publication Date
EP0536103A1 true EP0536103A1 (de) 1993-04-07

Family

ID=6871946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92850230A Ceased EP0536103A1 (de) 1991-10-04 1992-09-30 Aus Karton oder anderem faltbaren Material hergestellte Verpackung

Country Status (2)

Country Link
EP (1) EP0536103A1 (de)
DE (1) DE9112385U1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671334A1 (de) * 1994-03-01 1995-09-13 Societe Des Produits Nestle S.A. Karton zum Unterstützen eines Behälters
US20130312369A1 (en) * 2012-05-24 2013-11-28 The Quakers Oats Company Food Packaging Carton

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645680A1 (de) * 1996-11-06 1998-05-07 4 P Nicolaus Kempten Gmbh Faltschachtel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR42531E (fr) * 1932-03-22 1933-08-04 Thiolat Freres Ets Boîte pliante
EP0171275A2 (de) * 1984-08-06 1986-02-12 Owens-Illinois Plastic Products Inc. Behälter aus polymerischem Material und Zuschnitt zu seiner Herstellung
WO1986003726A1 (en) * 1984-12-20 1986-07-03 Sprinter System Ab Package blank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR42531E (fr) * 1932-03-22 1933-08-04 Thiolat Freres Ets Boîte pliante
EP0171275A2 (de) * 1984-08-06 1986-02-12 Owens-Illinois Plastic Products Inc. Behälter aus polymerischem Material und Zuschnitt zu seiner Herstellung
WO1986003726A1 (en) * 1984-12-20 1986-07-03 Sprinter System Ab Package blank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671334A1 (de) * 1994-03-01 1995-09-13 Societe Des Produits Nestle S.A. Karton zum Unterstützen eines Behälters
US5522537A (en) * 1994-03-01 1996-06-04 Nestec S.A. Carton having triangular corners
US20130312369A1 (en) * 2012-05-24 2013-11-28 The Quakers Oats Company Food Packaging Carton
US8959877B2 (en) * 2012-05-24 2015-02-24 The Quaker Oats Company Food packaging carton and method of making packaging carton

Also Published As

Publication number Publication date
DE9112385U1 (de) 1992-01-30

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