EP2376333B1 - Carton ayant un premier et un deuxieme motifs de moindre resistance - Google Patents

Carton ayant un premier et un deuxieme motifs de moindre resistance Download PDF

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Publication number
EP2376333B1
EP2376333B1 EP09829891.2A EP09829891A EP2376333B1 EP 2376333 B1 EP2376333 B1 EP 2376333B1 EP 09829891 A EP09829891 A EP 09829891A EP 2376333 B1 EP2376333 B1 EP 2376333B1
Authority
EP
European Patent Office
Prior art keywords
carton
flap
panel
zone
weakness
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.)
Not-in-force
Application number
EP09829891.2A
Other languages
German (de)
English (en)
Other versions
EP2376333A4 (fr
EP2376333A1 (fr
Inventor
Philip Davies
Silvio Bugelli
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.)
Mondelez International AMEA Pte Ltd
Original Assignee
Cadbury Enterprises Pte Ltd
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
Priority claimed from AU2008906290A external-priority patent/AU2008906290A0/en
Application filed by Cadbury Enterprises Pte Ltd filed Critical Cadbury Enterprises Pte Ltd
Priority to PL09829891T priority Critical patent/PL2376333T3/pl
Publication of EP2376333A1 publication Critical patent/EP2376333A1/fr
Publication of EP2376333A4 publication Critical patent/EP2376333A4/fr
Application granted granted Critical
Publication of EP2376333B1 publication Critical patent/EP2376333B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products
    • 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
    • B65D5/2052—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 characterised by integral closure-flaps
    • B65D5/2076—Cooperating flaps glued together
    • 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
    • B65D5/545—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 "cross-like" blank

Definitions

  • the present invention relates to a carton and more particularly to a closure system of a carton.
  • the carton is for a solid confectionary block such as a chocolate block.
  • chocolate blocks are traditionally packaged within an outer wrapping of paper or foil, alternatively they may be packaged within an outer carton composed of a thin board.
  • Previous carton designs proposed for this purpose have a closure in the form of an end flap which, in the unopened carton, is retained by gluing to an adjacent wall of the carton.
  • These existing closure arrangements are not particularly easy to open especially by older persons or less dextrous persons and, likewise, the flap may not always be easy to close after opening.
  • the difficulties are such that some consumers simply tear open the carton and which is easy to do as the carton is quite thin, but once torn open in this way the carton cannot be properly reclosed and also, having been torn, is quite unsightly.
  • the present invention seeks to provide a carton of the general type discussed above with an improved opening and re-closure facility.
  • a carton erected from a blank having a closure flap held in a closed condition prior to initial opening of the carton by a connection between a face of the closure flap and an opposing face of an adjacent wall of the carton, wherein the connection is to a part of the adjacent wall which is removable from the remainder of that wall along one or more first patterns of weakness, the connection being in a predetermined zone of the removable part defined by one or more second patterns of weakness so that when the part is removed from the remainder of the wall, the predetermined zone can be separated from the remainder of the removable part along the second pattern(s) of weakness to remain attached to the closure flap.
  • separation of the removable part from the wall along the first pattern(s) of weakness may also cause the connected zone to separate from the part along its associated second pattern(s) of weakness.
  • it may be defined by a pattern of weakness of a continuously curved profile such as elliptical or circular. In alternative configurations, it may not be a continuously curved profile.
  • the connected zone may provide the only zone of connection between the closure flap and the adjacent wall of the carton prior to initial opening.
  • a recess of corresponding shape is formed in the wall and in one embodiment of the invention, the closure flap is so configured that after its release it can be reclosed by tucking a free edge of the flap behind an edge of the recess.
  • the recess may open onto an outer edge of the wall, and prior to initial opening of the carton the flap may be located inside of that outer edge, whereas to reclose the carton after initial opening the configuration of the flap may be such that a free edge portion of the flap is able to engage behind an edge of the recess inwardly of the outer edge of the wall.
  • the closure flap may be connected along one edge with a panel forming a further wall of the carton, the free edge portion of the flap being distal from said one edge.
  • the flap may be shaped to provide a first zone of constant width immediately adjacent the panel, the flap progressively narrowing in a direction away from the panel to a second zone of constant width and narrowing progressively from the second zone of constant width towards the free edge.
  • the first zone of constant width may have a width which is substantially the same as that of the panel.
  • the carton may be erected from a blank and in one form, the carton is erected by folding the blank around a product to be packaged within a carton, a confectionary block for example.
  • the retention of the flap by a glued connection prior to opening is particularly convenient as the actions of folding a blank around a product in a production line situation and applying glue to predetermined parts of the blank during the process can readily be performed by existing commercially available machinery.
  • the flap could be retained in other ways, such as by double-sided adhesive tape or by mechanical retention such as stapled or riveted connection or a frictional connection. Certain of these retention methods may be more applicable in a situation where the carton is pre-formed prior to insertion of the product.
  • a blank for erection into a carton having panels foldable to form walls of the carton, and a flap foldable for closing an access opening of a carton whereby in the erected carton the flap is retained prior to initial opening by connection to part of an adjacent wall of the erected carton, the said part of the wall being formed by a part of one of said panels which is removable from that panel along one or more first patterns of weakness to permit release of the flap, wherein the said part of the said one panel includes a zone defined by one or more second patterns of weakness whereby when, in the erected carton, the flap is connected to the said one panel in that zone, release of the flap to open the carton can be effected by removal of the said part of the panel and separation of the said zone from the part.
  • the said zone may be of a continuously curved profile such as elliptical or circular.
  • the said part of said one panel may be of generally rectangular shape. In which case, at least one edge of the said part is defined by an edge of the panel. In one embodiment, two adjacent edges of the said part are defined by two adjacent edges of the said one panel forming a corner portion of the panel.
  • the said part may include a projecting tab to facilitate its removal.
  • the closure flap is connected along one edge with a further panel which in the erected carton forms a further wall of the carton, the flap having a free edge region distal from said one edge, the closure flap being shaped to provide a first zone of constant width immediately adjacent the said further panel, the flap progressively narrowing in a direction away from the said further panel to a second zone of constant width and narrowing progressively from the second zone of constant width towards the free edge.
  • the first zone of constant width may have a width which is substantially the same as that of the said further panel.
  • a method of erecting a carton from a blank as specified above comprising placing a product to be packaged on a panel of the blank other than said one panel and sequentially folding other panels around the product to enclose the product, wherein the said flap is folded over the product prior to folding the said one panel over the product, and the said one panel is subsequently folded over the product to overlie the flap, the method further comprising connecting the said part of the said one panel to the flap in said zone to thereby retain the flap thereto.
  • the method comprises applying glue to connect the said part of the said one panel to the flap, and applying glue to other parts of the blank to connect adjacent folded parts and maintain the carton in its erected state.
  • Figures 1 to 3 show the carton prior to opening, the carton being erected from the blank 10 shown in Figure 4 .
  • the blank which is formed from thin board, fibre board for example, comprises a main panel 2 which forms the front wall of the carton and outer side panels 4, 6 which, when the carton is erected, overlap to form the rear wall.
  • the outer side panels 4, 6 are connected to the main panel 2 by narrow intermediate panels 8, 10 which form the opposite side walls of the erected carton.
  • a lower closure flap 12, associated tabs 14, and a narrow intermediate panel 16 between flap 12 and panel 2 form a lower closure.
  • An upper closure flap 18, associated tabs 20, and narrow intermediate panel 22 form an upper closure.
  • a carton of the preferred embodiment is designed to be erected around the product to be enclosed by the carton.
  • the product is a block confectionary product, a chocolate block for example
  • the product already enclosed in an inner foil wrapping is placed on the main panel 2 and the other panels and flaps are sequentially folded and adhered together by glue to form the completed carton as illustrated in Figures 1 to 3 .
  • the general techniques for folding the flaps and applying glue in a production line situation are well known in the packaging industry and do not need to be further described here.
  • glue is applied along the edge of one or other of the two outer panels 4, 6 to form an overlapping glued seam which is shown in Figure 2 .
  • the lower closure which is principally formed by the lower closure flap 12 is of substantially conventional construction. The lower closure is intended to remain permanently closed and for this purpose the lower closure flap 12 and intermediate panel 16 is permanently retained in position by gluing of the flap 12 to the inner surface of one or other of the outer panels 4, 6.
  • the upper closure flap 18 is an openable and re-closable flap to provide access to the contents of the carton. Its construction and its mode of co-operation with the rear wall of the carton prior to opening and upon re-closure will now be described in detail.
  • the upper closure flap 18 is shaped to provide a zone 18a (shown by the stippling in Figure 4 ) of constant width immediately adjacent the intermediate panel 22 which forms the upper end wall of the erected, closed, carton.
  • the width of the zone 18a corresponds to that of the front panel 2 and hence to that of both the front and rear walls in the erected carton.
  • the flap 18 then progressively narrows to a second zone 18b (shown by the crosshatching in Figure 4 ) of constant width and from that second zone 18b of constant width, it narrows progressively towards its free end. The function of this second zone 18b of the flap 18 will be described later.
  • the flap 18 is retained in its entirety beneath the rear wall formed by the overlapping side panels 4, 6.
  • the panel 4 includes at its upper end a removable part 30 of generally rectangular shape, the part 30 being joined to the remainder of the panel 4 by first patterns of weakness 32 as exemplified below.
  • a removable zone 34 which, in the embodiment illustrated, is generally of an elliptical shape but could be of any other shape, circular for example, which achieves the function to be described below.
  • the removable zone 34 is likewise defined by second pattern(s) of weakness 36 as exemplified below.
  • the first and second patterns of weakness which may be lines of weakness, may be formed by, for example, perforations or scoring extending only partially through the thickness of the board; such scoring may extend from the inner surface of the board outwards, or the outer surface of board inwards, or a mixture of both.
  • the scoring, perforations or other patterns of weakness may be formed by laser cutting or by mechanical means, for example.
  • the upper closure flap 18 is retained by gluing only to the rear wall only in the area defined within this small removable zone 34 of elliptical shape. Accordingly, the flap 18 is retained, by gluing, only to the removable part 30 of the rear wall, with the glued connection being confined to within the removable zone 34 of that part 30. With reference to the detailed construction of the flap 18 shown in Figure 4 , the glued connection to the zone 34 is located in the zone of the flap 18 between the zones 18a and 18b.
  • the flap 18 is folded over the product prior to folding the panels 4, 6 which form the rear wall and the glue for providing the connection to the zone 34 can be applied either to the upper face of flap 18 after folding or upper face of the removable part 30 prior to folding of the panel 4.
  • the larger removable part 30 is removed from the rear wall by tearing along the first patterns of weakness 32 and during removal of that larger part 30 it will also separate from its glued connection with the upper closure flap 18 by tearing along the second pattern of weakness 36 which separates the inner glued zone 34 from the remainder of the removable part 30.
  • the curved profile of that inner zone readily promotes that action during the separation of the larger part 30.
  • a small tab 38 can be seen to project from the upper edge of the part 30 to facilitate easily gripping that part for the purposes of removal and the tab 38 may carry instructions to the consumer to "OPEN HERE".
  • the upper closure configuration described provides firm and secure retention of the upper closure flap 18 prior to opening, but the package can easily be opened by removal of the part 30 by tearing along the defined patterns of weakness as indicated schematically in Figures 5 and 6 .
  • This has the effect of releasing the upper flap 18 as the glued connection between the flap 18 and the part 30 itself separates from the removed part by easily tearing along the inner pattern of weakness 36.
  • the effect of this is twofold. Firstly, releasing of the flap 18 does not require application of a force sufficient to break the glued connection itself; the force applied merely needs to be sufficient to permit tearing along the various patterns of weakness and the design of these can readily be configured to permit ease of tearing.
  • the fact that the glued connection is itself not broken provides a distinct aesthetic element in that no unsightly broken glued connection will be visible when the carton is opened. All that will be visible on the outer surface of the closure flap 18 after opening is the small elliptical (or other shaped) zone 34 which remains glued to the exposed outer surface of the flap 18. That attached zone 34 could, for instance, carry a trade mark applicable to the product in order to provide a sense of aesthetic design integrity to that part of the closure flap 18 after opening.
  • the part 30 is quite "cleanly" removable from the carton and has a relatively significant size, it can also be used as a token redeemable for promotional activities.
  • the part 30 may be printed on its inside surface, that is the surface not visible to the consumer prior to opening the carton, with indicia concerning a prize which can be obtained when the token is redeemed; it will be understood that in this case the indicia must appear within the area outside of the inner removable zone 34.
  • the flap 18 can then be retained in its closed state by tucking the narrowed free end part of the flap 18 beneath the lower edge 40 of the recess now present in the rear wall (this is shown in Figure 7 ).
  • This effect is facilitated by the presence of the secondary zone 18b of constant width, the width of this being slightly less than the width of the recess itself.
  • the main removable part 30 of the rear wall extends to the upper edge of the panel 4 and side edge of the panel so that the part 30 defines a corner portion of the panel 4.
  • this is preferred as its removal merely requires tearing along two principal patterns of weakness, one at right angles to the other and interconnected by a radiused portion to facilitate a smooth tearing action, nevertheless in alternative forms the removable part could be positioned more centrally within that panel.
  • closure system is associated with one of the two ends of the carton, specifically the upper end, in other embodiments it could be associated with one or other of the two sides of the carton.
  • the carton is erected by folding around the product, it may alternatively be pre-formed prior to insertion of the product(s) to be contained therein.
  • gluing the inner removable zone 34 to the closure flap 18 it may be secured thereto in alternative ways such as by the use of double-sided adhesive tape or by a mechanical fastening such as a staple, rivet or frictional connection. Certain of these alternatives may however only be applicable for use in a pre-formed carton.

Claims (15)

  1. Carton présentant un rabat de fermeture (18) tenu dans une position fermée avant l'ouverture initiale du carton par un raccord entre une face du rabat de fermeture (18) et une face intérieure opposée d'une paroi adjacente (4) du carton, dans lequel le raccord appartient à une partie (30) de la paroi adjacente qui peut être retirée du reste de cette paroi le long d'un ou de plusieurs premiers motifs (32) de moindre résistance de façon à exposer essentiellement le rabat, le raccord se trouvant dans une zone prédéterminée (34) de la partie amovible définie par un ou plusieurs seconds motifs (36) de moindre résistance de telle sorte que lorsque la partie (30) est retirée du reste de la paroi, la zone prédéterminée (34) peut être séparée du reste de la partie amovible (30) le long du ou des second(s) motif(s) (36) de moindre résistance pour rester fixée au rabat de fermeture (18).
  2. Carton selon la revendication 1, dans lequel le raccord de la zone prédéterminée (34) à la face du rabat de fermeture, est un raccord collé.
  3. Carton selon la revendication 1, dans lequel le raccord de la zone prédéterminée (34) à la face du rabat de fermeture, est un raccord mécanique ou à frottements.
  4. Carton selon l'une quelconque des revendications 1 à 3, dans lequel la zone raccordée fournit la seule zone de raccord entre le rabat de fermeture (18) et la paroi adjacente (4) du carton avant l'ouverture initiale.
  5. Carton selon l'une quelconque des revendications 1 à 4, dans lequel la zone raccordée est définie par un motif de moindre résistance qui présente un profil bombé de manière continue dans la partie amovible de la paroi adjacente (4).
  6. Carton selon l'une quelconque des revendications 1 à 5, dans lequel, avant l'ouverture initiale du carton, une face extérieure du rabat de fermeture (18) est mise en prise sous la face intérieure de ladite zone raccordée de ladite partie de la paroi adjacente (4).
  7. Carton selon l'une quelconque des revendications 1 à 6, dans lequel le retrait de ladite partie de la paroi adjacente pour permettre la libération initiale du rabat de fermeture, forme un renfoncement qui présente une forme correspondante dans la paroi, et le rabat de fermeture est configuré de telle sorte qu'il puisse être refermé après sa libération en rentrant une partie de bord libre du rabat derrière un bord (40) du renfoncement.
  8. Découpe pour le montage d'un carton, la découpe présentant des panneaux pliables pour former les parois du carton, et un rabat (18) pliable destiné à fermer une ouverture d'accès d'un carton, grâce à quoi dans le carton monté, le rabat (18) est retenu avant l'ouverture initiale par un raccord à une partie intérieure d'une paroi adjacente du carton monté, ladite partie de la paroi étant formée par une partie (30) d'un desdits panneaux qui est amovible de ce panneau le long d'un ou de plusieurs premiers motifs (32) de moindre résistance pour exposer essentiellement le rabat et à permettre sa libération, dans lequel ladite partie dudit un panneau comprend une zone (34) définie par un ou plusieurs seconds motifs de moindre résistance (36), grâce à quoi, lorsque le rabat est raccordé, dans le carton monté, audit panneau dans cette zone, la libération du rabat pour ouvrir le carton peut être effectuée en retirant ladite partie du panneau et en séparant ladite zone de la partie.
  9. Découpe selon la revendication 8, dans laquelle ladite zone (34) présente un profil bombé de manière continue tel qu'un profil elliptique ou circulaire.
  10. Découpe selon la revendication 8 ou 9, dans laquelle ladite partie (30) dudit un panneau présente une forme en général rectangulaire.
  11. Découpe selon la revendication 9, dans laquelle au moins un bord de ladite partie (30) est défini par un bord du panneau.
  12. Découpe selon la revendication 11, dans laquelle deux bords adjacents de ladite partie (30) sont définis par deux bords adjacents dudit un panneau en formant une partie de coin du panneau.
  13. Découpe selon l'une quelconque des revendications 8 à 12, dans laquelle ladite partie (30) comprend une patte qui fait saillie (38) de façon à faciliter son retrait.
  14. Procédé pour monter un carton à partir d'une découpe selon l'une quelconque des revendications 8 à 13, comprenant le positionnement d'un produit à emballer sur un panneau de la découpe autre que ledit un panneau et le pliage de manière séquentielle d'autres panneaux autour du produit pour enfermer le produit, dans lequel ledit rabat (18) est replié sur le produit avant de plier ledit un panneau sur le produit, et ledit un panneau est replié par la suite sur le produit pour recouvrir le rabat, le procédé comprenant en outre le raccordement de ladite partie (30) dudit un panneau au rabat dans ladite zone (34) pour retenir de ce fait le rabat sur celle-ci.
  15. Procédé selon la revendication 14, comprenant l'application de colle pour coller ladite partie (30) dudit un panneau au rabat, et l'application de colle sur d'autres parties de la découpe pour coller les parties pliées adjacentes et maintenir le carton dans son état monté.
EP09829891.2A 2008-12-04 2009-12-04 Carton ayant un premier et un deuxieme motifs de moindre resistance Not-in-force EP2376333B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09829891T PL2376333T3 (pl) 2008-12-04 2009-12-04 Pudełko kartonowe mające pierwszy i drugi zarys osłabienia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008906290A AU2008906290A0 (en) 2008-12-04 Carton
PCT/AU2009/001579 WO2010063076A1 (fr) 2008-12-04 2009-12-04 Carton ayant un premier et un deuxième motifs de moindre résistance

Publications (3)

Publication Number Publication Date
EP2376333A1 EP2376333A1 (fr) 2011-10-19
EP2376333A4 EP2376333A4 (fr) 2012-11-21
EP2376333B1 true EP2376333B1 (fr) 2014-02-12

Family

ID=42232821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09829891.2A Not-in-force EP2376333B1 (fr) 2008-12-04 2009-12-04 Carton ayant un premier et un deuxieme motifs de moindre resistance

Country Status (6)

Country Link
EP (1) EP2376333B1 (fr)
AU (1) AU2009322088B2 (fr)
BR (1) BRPI0922289A2 (fr)
CA (1) CA2745653C (fr)
PL (1) PL2376333T3 (fr)
WO (1) WO2010063076A1 (fr)

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Also Published As

Publication number Publication date
WO2010063076A1 (fr) 2010-06-10
CA2745653A1 (fr) 2010-06-10
PL2376333T3 (pl) 2014-07-31
BRPI0922289A2 (pt) 2015-12-29
EP2376333A4 (fr) 2012-11-21
AU2009322088B2 (en) 2015-12-03
EP2376333A1 (fr) 2011-10-19
CA2745653C (fr) 2017-01-17
AU2009322088A1 (en) 2011-06-30

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