EP0513888A1 - Schale aus relativ nachgiebigem Material, wie dünner Karton oder Kunststoff, insbesondere für die Verpackung von Nahrungsmitteln - Google Patents

Schale aus relativ nachgiebigem Material, wie dünner Karton oder Kunststoff, insbesondere für die Verpackung von Nahrungsmitteln Download PDF

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Publication number
EP0513888A1
EP0513888A1 EP92201170A EP92201170A EP0513888A1 EP 0513888 A1 EP0513888 A1 EP 0513888A1 EP 92201170 A EP92201170 A EP 92201170A EP 92201170 A EP92201170 A EP 92201170A EP 0513888 A1 EP0513888 A1 EP 0513888A1
Authority
EP
European Patent Office
Prior art keywords
rim
sheet
strip
tray
container body
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.)
Withdrawn
Application number
EP92201170A
Other languages
English (en)
French (fr)
Inventor
Graziano Testi
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.)
AUTOPAC Srl
Original Assignee
AUTOPAC Srl
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 AUTOPAC Srl filed Critical AUTOPAC Srl
Publication of EP0513888A1 publication Critical patent/EP0513888A1/de
Withdrawn legal-status Critical Current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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2052—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the container being weakened
    • 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
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2072—Mechanical means
    • B65D77/2076—Mechanical means provided by the cover itself
    • B65D77/2084—Mechanical means provided by the cover itself the cover being maintained reclosed by a part folded over the container rim
    • 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
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2072—Mechanical means
    • B65D77/2088—Mechanical means attached to the cover
    • B65D77/2092—Mechanical means attached to the cover the means being a part initially broken from the container

Definitions

  • This invention relates to a tray suitable for packaging objects and in particular food products, which is of relatively yieldable material, ie material which can be easily separated by tearing along a possible sectional weakening line, such as thin cardboard or plastics material.
  • the tray of the invention is of the type comprising a container body, the upper face of which is open and provided with an upper rim which surrounds said upper open face, and further comprises a flexible sheet fixed to the upper rim to cover said open upper face.
  • Trays of the aforesaid type are used at food retail sales outlets for packaging products sold loose (such as salted meats, fish, cheeses etc.).
  • the products are placed in the container body, which is then closed by the plastics sheet, this being welded at the sales outlet to the rim of the container body. This makes transportation of the products and their possible subsequent preservation in the home easier and more economical.
  • a further use of said trays is to contain pre-packed products in which the cover sheet is sealed onto the container body before distribution to sales outlets.
  • the cover sheet is torn off or otherwise removed from the rim, to open the container body and enable its contents to be withdrawn.
  • the tray then remains open, and if at least a part of its contents has not been used there is the problem of again closing the tray to protect and isolate its remaining contents.
  • This problem is currently solved by wrapping the container body in a sheet of metal foil or equivalent material, or in plastic sheets; alternatively the remaining contents are placed in a different container for preservation.
  • An object of the present invention is to solve said technical problem by means of an improved tray which makes it easier and more practical to protect the tray contents after the tray has been opened.
  • a further object of the invention is to facilitate removal of the cover sheet fixed to the tray rim, this operation currently being generally difficult and in some case requiring the use of auxiliary implements.
  • the tray of the invention comprises a container body 2 with an open upper face and an upper rim 3 surrounding said open upper face.
  • the container body 2 comprises a lower base 21 of substantially rectangular plan and four inclined side walls 22, the upper part of which is bent outwards to define the rim 3, which is flat and horizontal in the case of the first two embodiments, and of more complex shape in the case of the third embodiment.
  • the container body 1 is formed of relatively yieldable material, ie such that it can be easily separated by tearing with the hands along a possible sectional weakening line.
  • the container body 2 is formed of thin cardboard possibly lined with a thin film of thermo-weldable plastics, or can be formed of thin plastics.
  • the open upper face of the container body 2 is closed after the products to be packaged have been introduced, by a flexible sheet 10 which is fixed to the upper rim 3 along a fixing band 4 (ie a band along which the sheet 10 and the rim 3 are joined together); said band 4 is indicated in Figures 1, 3, 5 and 7 by cross-hatching.
  • the cover sheet 10 can be conveniently formed of thermo-weldable plastics and can be fixed to the rim 3 conveniently by thermo-welding (if at least the upper surface of the rim 3 is of thermo-weldable material).
  • the sheet 10 can be fixed onto the rim 3 either before delivery to the sales outlets, or at the sales outlets themselves to package products sold loose.
  • the rim 3 is provided, parallel to its longitudinal extension, with a sectional rim weakening line 5 which divides the rim 3 into two concentric strips, namely an inner strip 31 and an outer strip 32 ( Figures 1-6). Said line 5 extends along at least the entire length of a first side of the rim 3 and at least part of the length of the two sides adjacent to this first side.
  • Said line 5 is such as to enable the two rim strips 31 and 32 to be separated from each other along said line by tearing.
  • Said line 5 can be formed as a continuous incision through only part of the rim thickness ( shown in Figures 4A and 6A) or as an aligned series of small perforations, or in any other manner, such that the user can separate the rim 3 along the line 5 by tearing with the hands.
  • the line 5 extends along the whole of the side 3a of the rim 3 (ie the vertical right hand side in Figures 1-3) and along practically the whole of the sides 3b adjacent to the side 3a, but does not extend along the side 3c opposite the side 3a.
  • the fixing band 4 is also parallel to the longitudinal extension of the rim 3, and in the region comprising the weakening line 5 is arranged on the outer strip 32 of the rim a slight distance from the line 5.
  • the fixing band can cover the entire width of the rim 3.
  • the outer strip 32 remains joined to the sheet 10 and the inner strip 31 remains joined to the container body 2 (as shown in Figures 4B and 6B); and the sheet 10 can be raised from the upper face of the container body 2 to enable the contained products to be withdrawn.
  • the sheet 10 continues to remain joined to the rim 3 on its side 3c.
  • the tray comprises coupling means, formed in the container body 2, for fastening the sheet 10 onto the open upper face of the tray after the two rim strips 31 and 32 have been separated from each other; said means act by coupling within the region defined between the sheet 10 and the inner edge 32' of the strip 32, this edge not being fixed to the sheet 10.
  • said coupling means comprise one or more tabs 41 formed within the container body 2 in the region comprising the weakening line 5, and specifically in the side wall 22 corresponding to the side 3a (or in the inner strip 31).
  • Said tabs 41 are formed by breaking through the section along a corresponding cut-through or sectional weakening line 42 which defines three sides of the tab 41, the fourth side being completely joined to the container body 2.
  • Said line 42 can be a line cut entirely through the thickness of the side wall 22 or can be a weakening line of the same type as the line 5, which allows break-through along the line 42 by manually pressing.
  • the tabs 41 are shaped such as to possess a lower edge 43 which projects outwards and downwards to enable it to be inserted into said coupling region defined between the sheet 10 and the inner edge 32' of the outer strip 32.
  • the coupling means are defined by the outer edge 31' of the inner rim strip 31, said outer edge 31' being able to be inserted into said coupling region defined between the sheet 10 and the inner edge 32' of the rim outer strip 32.
  • the coupling means provided have their tab 41 in the side wall 22 corresponding to the side 3a of the rim 3.
  • the weakening line 5 extends along the entire perimeter of the rim 3 and coupling means are provided on the two opposing sides 3a and 3c.
  • the coupling means provided on the side 3a are of the type comprising a tab 41 as shown in Figures 4A, 4B and 4C, whereas the means provided on the side 3c are of the type shown in Figures 6A, 6B and 6C.
  • the upper rim 3 is of more complex shape than in the preceding embodiments.
  • the rim 3 is formed of a first substantially horizontal portion 35 in an upper end position, a second substantially horizontal portion 36 in a position lower than the first portion 35, and an intermediate portion 37 inclined to the first portion and joining the two portions 35 and 36 together.
  • Said weakening line 5 is formed along the joining region between the intermediate portion 37 and the second portion 36, and specifically within the folded corner between the portions 37 and 36 or as close to this corner as possible.
  • the line 5 can extend along the entire perimeter of the rim 3 (as shown in Figure 7) or along only a part thereof (similar for example to the embodiment of Figure 1).
  • Said line 5 divides the rim 3 into an inner strip formed by the second portion 36, and an outer strip formed by the first portion 35 and intermediate portion 37.
  • Said inner and outer strip correspond to the strips 31 and 32 of the precedingly described embodiments.
  • the cover sheet 10 is fixed to the first portion 35, said fixing band 4 occupying the outer margin 35' of the portion 35, while leaving the inner margin 35'' of said portion 35 free.
  • the coupling means are defined by the outer edge 31' of the second portion 36, this edge, after separating the outer strip 35, 37 from the inner strip 36 along the line 5, being inserted into the coupling region defined between the sheet 10 and the inner edge 32' of the intermediate portion 37 (see Figures 8A, 8B and 8C).
  • the weakening lines 5 and 42 are conveniently formed in the container body 2 during the manufacture of the container body itself. On fixing the sheet 10 onto the rim 3, the region in which these latter are joined together is limited to the band 4, the fixing being done either before distribution to the sales outlets, or at the moment of sale.
  • the product is hence packaged in a closed tray offering the same product protection as in the case of known trays.
  • the invention enables the upper face of the container body 2 to be again covered to protect and better preserve the contents, by using the actual cover sheet 10 which was initially fixed to the rim 3.
  • the user presses with his fingers against the tabs 41 (hence tearing along the lines 42 if these are weakening lines instead of a continuous cut) to make their edges 43 project outwards from the side wall 22; he then pulls the sheet 10 horizontally outwards from the container body 2 to consequently elastically deform the container body 2 and/or elastically stretch the sheet 10, after which he folds the sheet 10 about the outer edge 31' of the inner strip 31 and inserts the lower edge 43 of the tabs 41 between the inner edge 32' of the outer strip 32 (fixed to the sheet 10) and the sheet 10 (as shown in Figure 4C).
  • the sheet 10 hence remains coupled to the container body 2 along its side 3a by the tabs 41, whereas along the opposite side 3c it is joined to the rim 3 via the original fixing region.
  • the sheet 10 is therefore taut and extends to cover the entire upper surface of the container body 2.
  • the sheet 10 is detached from the rim 3 along its entire perimeter.
  • the outer edge 31' of the inner strip 31 is inserted between the inner edge 32' of the outer strip 32 and the sheet 10 (as shown in Figure 6C), so coupling the side 3c of the rim 3 to the corresponding side of the sheet 10, whereas on the side 3a the tabs 41 are used in the same manner as heretofore described for the preceding embodiment.
  • the coupling means can obviously be provided on all sides of the container body 2.
  • the coupling means can be defined along the entire perimeter of the container body 2 by the outer edge 31' of the rim inner strip 31, the outer edge 31' being inserted into the coupling region defined between the sheet 10 and the inner edge 32' of the rim outer strip 32, ie the embodiment illustrated in Figures 6A, 6B and 6C is repeated along the entire tray perimeter.
  • the sheet 10 is detached along the entire tray perimeter.
  • the outer edge 31' of the second portion 36 is inserted between the inner edge 32' of the intermediate portion 37 and the sheet 10 (as shown in Figure 8C); in this manner, the intermediate portion 37 is brought into contact with the outer surface of the side walls 22, while the portion 36 is inserted between the sheet 10 and that margin 35'' of the portion 35 which is not fixed to the sheet 10.
  • the described coupling means are preferably provided along the entire perimeter of the tray.
  • said coupling means can be provided only along three sides of the tray, whereas the sheet 10 is left joined to the container body 2 along the fourth side (in a manner similar to the first embodiment illustrated in Figures 1-4).
  • the invention provides the advantage of facilitating detachment of the sheet 10 from the container body 2 (when this is still sealed), and in addition allows easy reuse of the sane sheet 10 to again cover the upper face of the container body 2.
  • each tab 41 there can be associated an underlying symmetrically opposing identical tab having its upper edge mating with the edge 43.
  • this underlying tab can be positioned external to the outer strip 32 during coupling, to reinforce the coupling action.
  • the container body 2 can be of different shape to that illustrated in the figures, and in particular can be of any geometrical form in plan view.
  • holes 9 can be provided in the container body 2, for example in the highest part of the container body 2 (as shown in Figures 7 and 8), to allow air to pass if this is desirable for the packaged product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Cartons (AREA)
EP92201170A 1991-05-13 1992-04-27 Schale aus relativ nachgiebigem Material, wie dünner Karton oder Kunststoff, insbesondere für die Verpackung von Nahrungsmitteln Withdrawn EP0513888A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRE910031A IT1249421B (it) 1991-05-13 1991-05-13 Vaschetta in materiale relativamente cedevole quale cartone o materia plastica sottile, in particolare per confezionare prodotti alimentari.
ITRE910031 1991-05-13

Publications (1)

Publication Number Publication Date
EP0513888A1 true EP0513888A1 (de) 1992-11-19

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ID=11397999

Family Applications (1)

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EP92201170A Withdrawn EP0513888A1 (de) 1991-05-13 1992-04-27 Schale aus relativ nachgiebigem Material, wie dünner Karton oder Kunststoff, insbesondere für die Verpackung von Nahrungsmitteln

Country Status (2)

Country Link
EP (1) EP0513888A1 (de)
IT (1) IT1249421B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859042A1 (de) * 1998-12-21 2000-06-29 Convenience Food Sys Bv Wiederverschließbare Kunststoffverpackung mit mindestens einer Noppe
DE10109920A1 (de) * 2001-03-01 2002-09-05 Friedrich Knapp Behälter mit Öffnungsmechanismus, Verwendung eines Behälters sowie Öffner für Behälter
EP1900647A2 (de) * 2006-09-08 2008-03-19 Stamatis Kaklamanos Behälter mit einer Klemmvorrichtung zum Halten eines Deckels
FR2972425A1 (fr) * 2011-03-07 2012-09-14 Cgl Pack Service Barquette a opercule refermable
NL2010144C2 (nl) * 2013-01-18 2014-07-21 Naber Beheer B V Verpakking en werkwijze voor het vervaardigen van een verpakking.
FR3002922A1 (fr) * 2013-03-06 2014-09-12 Cgl Pack Service Barquette a opercule refermable
JP5700163B1 (ja) * 2014-05-30 2015-04-15 株式会社寺岡精工 ヒートシール容器、ヒートシール容器入り食品及びヒートシール容器の製造装置
US9067347B2 (en) 2010-12-22 2015-06-30 Naber Beheer B.V. Method for manufacturing a package
WO2017073742A1 (ja) * 2015-10-29 2017-05-04 大日本印刷株式会社 容器、蓋付容器および蓋付容器の製造方法
JP2017081610A (ja) * 2015-10-29 2017-05-18 大日本印刷株式会社 蓋付容器、容器および容器の製造方法
JP2018047918A (ja) * 2016-09-20 2018-03-29 大日本印刷株式会社 容器
US10183774B2 (en) 2013-01-18 2019-01-22 Naber Beheer B.V. Package, method for manufacturing a package, and mold for application for the purpose of such method
JP2019151362A (ja) * 2018-03-01 2019-09-12 大日本印刷株式会社 リクローズ容器およびその製造方法
CN110271763A (zh) * 2019-07-24 2019-09-24 精密产品有限公司 一种容器
JP2019182445A (ja) * 2018-04-04 2019-10-24 大日本印刷株式会社 容器とそれを用いた蓋付容器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398877A (en) * 1967-04-10 1968-08-27 Anderson Bros Mfg Co Reclosable package
GB1128799A (en) * 1966-10-24 1968-10-02 Anderson Bros Mfg Co Improvements in containers with sealed covers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1128799A (en) * 1966-10-24 1968-10-02 Anderson Bros Mfg Co Improvements in containers with sealed covers
US3398877A (en) * 1967-04-10 1968-08-27 Anderson Bros Mfg Co Reclosable package

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859042A1 (de) * 1998-12-21 2000-06-29 Convenience Food Sys Bv Wiederverschließbare Kunststoffverpackung mit mindestens einer Noppe
DE10109920A1 (de) * 2001-03-01 2002-09-05 Friedrich Knapp Behälter mit Öffnungsmechanismus, Verwendung eines Behälters sowie Öffner für Behälter
EP1900647A2 (de) * 2006-09-08 2008-03-19 Stamatis Kaklamanos Behälter mit einer Klemmvorrichtung zum Halten eines Deckels
EP1900647A3 (de) * 2006-09-08 2008-04-02 Stamatis Kaklamanos Behälter mit einer Klemmvorrichtung zum Halten eines Deckels
US9067347B2 (en) 2010-12-22 2015-06-30 Naber Beheer B.V. Method for manufacturing a package
FR2972425A1 (fr) * 2011-03-07 2012-09-14 Cgl Pack Service Barquette a opercule refermable
NL2010144C2 (nl) * 2013-01-18 2014-07-21 Naber Beheer B V Verpakking en werkwijze voor het vervaardigen van een verpakking.
US10183774B2 (en) 2013-01-18 2019-01-22 Naber Beheer B.V. Package, method for manufacturing a package, and mold for application for the purpose of such method
FR3002922A1 (fr) * 2013-03-06 2014-09-12 Cgl Pack Service Barquette a opercule refermable
JP5700163B1 (ja) * 2014-05-30 2015-04-15 株式会社寺岡精工 ヒートシール容器、ヒートシール容器入り食品及びヒートシール容器の製造装置
CN108349639A (zh) * 2015-10-29 2018-07-31 大日本印刷株式会社 容器、带盖容器以及带盖容器的制造方法
JP2017081610A (ja) * 2015-10-29 2017-05-18 大日本印刷株式会社 蓋付容器、容器および容器の製造方法
WO2017073742A1 (ja) * 2015-10-29 2017-05-04 大日本印刷株式会社 容器、蓋付容器および蓋付容器の製造方法
CN108349639B (zh) * 2015-10-29 2020-01-14 大日本印刷株式会社 容器、带盖容器以及带盖容器的制造方法
JP2018047918A (ja) * 2016-09-20 2018-03-29 大日本印刷株式会社 容器
JP2019151362A (ja) * 2018-03-01 2019-09-12 大日本印刷株式会社 リクローズ容器およびその製造方法
JP2019182445A (ja) * 2018-04-04 2019-10-24 大日本印刷株式会社 容器とそれを用いた蓋付容器
CN110271763A (zh) * 2019-07-24 2019-09-24 精密产品有限公司 一种容器
US11767140B2 (en) 2019-07-24 2023-09-26 Finest Products Limited Container

Also Published As

Publication number Publication date
ITRE910031A0 (it) 1991-05-13
ITRE910031A1 (it) 1992-11-13
IT1249421B (it) 1995-02-23

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