EP0387133A1 - Schalenförmige Verpackung mit warmgeformter Auskleidung - Google Patents
Schalenförmige Verpackung mit warmgeformter Auskleidung Download PDFInfo
- Publication number
- EP0387133A1 EP0387133A1 EP90400588A EP90400588A EP0387133A1 EP 0387133 A1 EP0387133 A1 EP 0387133A1 EP 90400588 A EP90400588 A EP 90400588A EP 90400588 A EP90400588 A EP 90400588A EP 0387133 A1 EP0387133 A1 EP 0387133A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tray
- corner
- corner panels
- walls
- corners
- 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- Withdrawn
Links
Images
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
- B65D5/22—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 held erect by extensions of one or more sides being doubled-over to enclose extensions of adjacent sides
-
- 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
- B65D5/001—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 stackable
- B65D5/0015—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 stackable the container being formed by folding up portions connected to a central panel
- B65D5/0045—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 stackable the container being formed by folding up portions connected to a central panel having both integral corner posts and ledges
-
- 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
- B65D5/2033—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 polygonal having more than four sides, e.g. hexagonal, octogonal
-
- 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
- B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/915—Stacking feature
- Y10S229/918—Corner construction
Definitions
- the present invention relates to a packaging tray of semi-rigid material, for example corrugated cardboard, the inner walls of which are intended to be coated, by thermoforming, with a film of thermoplastic material.
- trays are commonly used to package wet foodstuffs in a modified gas atmosphere, for their preservation.
- a tray of this type is known from European patent EP 0 192 537.
- This tray is of the type produced from a blank, comprising a substantially rectangular bottom on the sides of which are articulated two longitudinal walls provided with edge panels. intended to be folded to double the longitudinal walls, and two transverse walls provided with entablatures intended to extend parallel to the bottom and towards the inside of the mounted tray.
- the plate is waterproofed by a protective film which is applied without discontinuity on its internal faces.
- the tray is placed in the mounted state inside a mold, then a strip of film of thermoplastic material is placed above the opening of the mold.
- a cover is applied to the opening of the mold, the edges of the film strip then being applied against the upper faces of the entablatures, the film is then heated to bring it to its softening temperature, then by application of pressing, blowing or sucking the film towards the inside of the tray.
- the edges of the film then adhere to the upper faces of the entablatures, while its central part expands until it comes to be applied against the lower faces of the entablatures and against the side walls and the bottom of the plate.
- the tray is then closed by means of a tight seal in thermoplastic material.
- the coating film in thermoplastic material is subjected to a significant stretching especially in the angles formed by the walls and the bottom, and this all the more that the plate is high. In these areas, the film undergoes strong thinning and risks tearing during or after thermoforming. If the film breaks, the gas inside the tray escapes and the food is no longer in a conditioned atmosphere. In addition, the external humidity or that which results from the exudation of the foodstuffs can gain the cardboard through the holes and tears in the film, rapidly reducing its resistance to stacking.
- the present invention aims to remedy these drawbacks and it relates to a packaging tray provided with means which make it possible to reduce as much as possible the stretching of the thermoplastic film in the angles formed by the walls and the bottom.
- the packaging according to the invention is of the aforementioned type and is characterized in that it internally comprises, in the corners, corner panels which tilt at an obtuse angle on the bottom while advancing towards the center of the latter, and which are also inclined at an obtuse angle relative to the bottom and to the longitudinal and transverse walls defining the corners.
- thermoplastic film stretches less than in the case where the side walls are perpendicular to each other and to the bottom.
- the corner panels are in the shape of a triangle having a base applied to the bottom.
- the corner panels are trapezoidal, the large base of which rests on the bottom, and the small base of which coincides with the upper side of the cutaway .
- each ledge is extended at each of its two ends by a triangular or trapezoidal corner panel.
- the corner panels can themselves be extended by end flaps intended to be applied to a transverse wall of the tray, thereby locking the ledges and the corner panels.
- the starting blank 10 is made of single or double thickness corrugated cardboard. It comprises a rectangular bottom 12 truncated at its corners 13 and on which are hinged by fold lines 15, 17 two longitudinal walls 14, 16 and two transverse walls 18, 20.
- the corrugations 11 of the carton are oriented parallel to the width of the background 12.
- Each ledge for example 24, is extended at its ends by foldable corner panels 28, of trapezoidal shape, the small base 30 and the large base 32 of which extend substantially in the longitudinal direction.
- the small base 30 is on the inside of the corner panel and has substantially the same length as the corner 13.
- the corner panels 28 are articulated on the ledge by a fold line 34 and are themselves extended by end flaps 36 articulated on the corner panels by fold lines 38.
- the transverse walls 18, 20 are extended at each of their ends by a foldable rectangular panel 44 having substantially the same width as the truncated corner 13 and which is followed by an end flap 46 foldable along a line 47.
- the transverse walls carry along their longitudinal side entablatures 48, 49 foldable along fold lines 50. These entablatures are provided at their ends with locking tabs 52 intended to penetrate into slots 54 cut between the double drawdown lines 22.
- the ledges 24, 26 have, on their free edges, protrusions 53 capable of fitting into slots 55 cut out on the bottom, along the fold lines 15.
- the packaging plate we first erect perpendicular to the bottom 12, the transverse walls 18, 20. We then erect all of the longitudinal walls 14, 16 and their edges 24, 26 perpendicular to the bottom 12, then the folds are folded over the longitudinal walls, taking care to insert the end flaps 46 between the longitudinal walls 14, 16 and the folds.
- the corner panels 28 are then found in the corners defined by the longitudinal and transverse walls, while the end flaps 36 are internally lining the transverse walls. Entablatures 48, 49 are then folded horizontally and their locking tabs 52 are inserted into the slots 54.
- the corner panels 28 are inclined up and down as they approach the center of the bottom 12 and form obtuse angles with the bottom, the longitudinal walls and the end flaps 36.
- the lower corners of the plate formed at the junction between the base 32 of the panel and the bottom 12 have therefore been significantly brought closer to the center of said bottom with respect to the outer corners which have been represented in FIG. 2 in dashed lines.
- it will be much less stretched in the region of the bottom and in the lower corners under the entablatures than it would have been if it did’t there was no corner sign. The risks of tearing of the film are therefore practically eliminated.
- incised tabs 56 capable of being raised relative to the plane of the bottom to serve as stops for the corner panels. This lifting is automatically carried out in the mold which is used to thermoform the packaging tray.
- the packaging tray of Figure 3 differs from that of Figure 2 in that its corners are not truncated. It therefore comprises corner panels 58 of triangular shape. Here too, the stretch to which the coating film is subjected during thermoforming will be considerably reduced in the corners of the tray.
- the panels 60 which occupy the same positions on the blank as the corner panels had, are now rectangular and are applied exactly on the sides 44.
- the corner panels 28 are at present constituted by independent parts that are inserted into the corners of the tray and which hold in place either by wedging effect between the entablatures, the tongue 56 and the side walls, or by gluing to these walls.
- triangular corner panels of FIG. 3 may be constituted by independent added parts.
- the interior lining is thermoformed once the added corner panels have been put in place.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8903112A FR2644138B1 (fr) | 1989-03-09 | 1989-03-09 | Plateau d'emballage a revetement interieur thermoforme |
FR8903112 | 1989-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0387133A1 true EP0387133A1 (de) | 1990-09-12 |
Family
ID=9379538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90400588A Withdrawn EP0387133A1 (de) | 1989-03-09 | 1990-03-02 | Schalenförmige Verpackung mit warmgeformter Auskleidung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5028000A (de) |
EP (1) | EP0387133A1 (de) |
CA (1) | CA2011665A1 (de) |
FR (1) | FR2644138B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU695523B2 (en) * | 1995-06-15 | 1998-08-13 | Amcor Limited | A container and blank |
FR3097210A1 (fr) * | 2019-06-12 | 2020-12-18 | Ds Smith Packaging France | Emballage gerbable réalisé par pliage et assemblage d’un flan prédécoupé et flan prédécoupé pour la formation d’un tel emballage |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5261594A (en) * | 1992-01-03 | 1993-11-16 | Brown James M | Container post for product protection |
US5253802A (en) * | 1992-11-09 | 1993-10-19 | General Mills, Inc. | Foldable, microwavable baking pan usable as a promotional device |
US5375713A (en) * | 1993-12-08 | 1994-12-27 | Philips Electronics North America Corporation | Packed electric lamp of triangular planform |
US5535942A (en) * | 1995-04-17 | 1996-07-16 | Green Bay Packaging, Inc. | Stackable tray |
US6296178B1 (en) | 2000-08-09 | 2001-10-02 | Weyerhaeuser Company | Container with triangular corner posts |
NL1016099C2 (nl) * | 2000-09-04 | 2002-03-07 | Kappa Packaging B V | Gasdichte transportverpakking, alsmede werkwijze en inrichting voor het vervaardigen daarvan. |
US6508395B2 (en) | 2001-03-12 | 2003-01-21 | Stone Container Corporation | Stackable shipping container |
US7128969B2 (en) * | 2001-04-30 | 2006-10-31 | Trespaphan Gmbh | Method for the production of biologically-degradable packagings made from biaxially-drawn films |
IL166375A (en) * | 2005-01-18 | 2010-06-30 | Menashe Rogotner | Carton, blank therefor and packing arrangement thereof |
US20090272789A1 (en) * | 2005-07-27 | 2009-11-05 | International Paper Company | Stackable and indexable packing tray |
NZ561844A (en) * | 2005-07-27 | 2011-03-31 | Int Paper Co | Stackable lidded packing tray with a self locking feature |
US7565998B2 (en) * | 2006-12-29 | 2009-07-28 | International Paper Company | Container and associated container blank |
US8579778B2 (en) | 2010-05-14 | 2013-11-12 | Rock-Tenn Shared Services, Llc | Machine and method for forming reinforced polygonal containers from blanks |
US9908304B2 (en) | 2008-05-07 | 2018-03-06 | Westrock Shared Services, Llc | Machine and method for forming reinforced polygonal containers |
US8827142B2 (en) | 2008-05-07 | 2014-09-09 | Rock-Tenn Shared Services, Llc | Reinforced polygonal containers and blanks of sheet material for making the same |
US8105223B2 (en) | 2008-05-07 | 2012-01-31 | Smurfit-Stone Container Enterprises, Inc. | Machine and method for forming reinforced polygonal containers from blanks |
DE202008010831U1 (de) * | 2008-08-13 | 2009-12-31 | Just Pack Gmbh | Kleinladungsträger |
FR2955835B1 (fr) * | 2010-02-04 | 2012-03-23 | Normande De Carton Ondule Snco Soc | Plateau de transport et de presentation d'articles tels que des pots de yaourt |
US8985431B2 (en) * | 2011-12-14 | 2015-03-24 | Rock-Tenn Shared Services, Llc | Polygonal container having reinforced corner structures and blank for forming same |
JP5840977B2 (ja) * | 2012-02-23 | 2016-01-06 | レンゴー株式会社 | 上下段連結可能トレー |
US10435221B2 (en) | 2016-06-24 | 2019-10-08 | Altria Client Services Llc | Display packages, blanks for forming the display package and methods of manufacturing the same |
US10427827B2 (en) * | 2018-01-30 | 2019-10-01 | S. C. Johnson & Son, Inc. | Box with improved gripping functionality |
CN112027282A (zh) * | 2020-07-10 | 2020-12-04 | 上海至亲印刷科技有限公司 | 一种可堆叠承重型包装结构 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6614457A (de) * | 1966-10-14 | 1968-04-16 | ||
FR2144618A1 (de) * | 1971-07-02 | 1973-02-16 | Champagne Cartonneries | |
US4236664A (en) * | 1978-06-28 | 1980-12-02 | Hartelmueller Ludwig | Stackable transport container |
EP0052021A1 (de) * | 1980-11-07 | 1982-05-19 | Societe Parisienne D'impression Et De Cartonnage | Kartonbehälter mit Kunststoffauskleidung und mit einem einstückigen Umfangsrahmen und Verfahren zu seiner Herstellung |
FR2565203A1 (fr) * | 1984-06-01 | 1985-12-06 | Rochette Cenpa | Plateau d'emballage en carton pour fruits ou legumes |
FR2592635A1 (fr) * | 1986-01-03 | 1987-07-10 | Billerud Emballage | Emballages en carton pouvant etre gerbes, palettises par unite ou par groupe d'emballages plus specialement pour le transport de gros fromages |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2822119A (en) * | 1954-02-12 | 1958-02-04 | Diamond Match Co | Container |
US3866816A (en) * | 1970-10-26 | 1975-02-18 | Robalex Inc Trustee | Boilable bakeable package and method |
US4151948A (en) * | 1978-03-17 | 1979-05-01 | Container Corporation Of America | Stackable container |
US4418863A (en) * | 1982-09-02 | 1983-12-06 | Georgia-Pacific Corporation | Produce tray with reinforced corner construction |
FR2576874B1 (fr) * | 1985-02-04 | 1987-10-02 | Socar | Conditionnement porteur etanche a l'humidite et aux gaz et obturable par un film de matiere plastique |
DE3540005A1 (de) * | 1985-07-08 | 1987-01-08 | Embalaje Iberoamericana | Stapelbares, ineinandersetzbares tablett mit mehrfachen aufnahmen |
-
1989
- 1989-03-09 FR FR8903112A patent/FR2644138B1/fr not_active Expired - Fee Related
-
1990
- 1990-03-02 EP EP90400588A patent/EP0387133A1/de not_active Withdrawn
- 1990-03-07 CA CA002011665A patent/CA2011665A1/fr not_active Abandoned
- 1990-03-08 US US07/490,720 patent/US5028000A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6614457A (de) * | 1966-10-14 | 1968-04-16 | ||
FR2144618A1 (de) * | 1971-07-02 | 1973-02-16 | Champagne Cartonneries | |
US4236664A (en) * | 1978-06-28 | 1980-12-02 | Hartelmueller Ludwig | Stackable transport container |
EP0052021A1 (de) * | 1980-11-07 | 1982-05-19 | Societe Parisienne D'impression Et De Cartonnage | Kartonbehälter mit Kunststoffauskleidung und mit einem einstückigen Umfangsrahmen und Verfahren zu seiner Herstellung |
FR2565203A1 (fr) * | 1984-06-01 | 1985-12-06 | Rochette Cenpa | Plateau d'emballage en carton pour fruits ou legumes |
FR2592635A1 (fr) * | 1986-01-03 | 1987-07-10 | Billerud Emballage | Emballages en carton pouvant etre gerbes, palettises par unite ou par groupe d'emballages plus specialement pour le transport de gros fromages |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU695523B2 (en) * | 1995-06-15 | 1998-08-13 | Amcor Limited | A container and blank |
FR3097210A1 (fr) * | 2019-06-12 | 2020-12-18 | Ds Smith Packaging France | Emballage gerbable réalisé par pliage et assemblage d’un flan prédécoupé et flan prédécoupé pour la formation d’un tel emballage |
Also Published As
Publication number | Publication date |
---|---|
FR2644138A1 (fr) | 1990-09-14 |
FR2644138B1 (fr) | 1991-11-15 |
CA2011665A1 (fr) | 1990-09-09 |
US5028000A (en) | 1991-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19901122 |
|
17Q | First examination report despatched |
Effective date: 19920217 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920630 |