EP1196334B1 - Carton and a carton blank - Google Patents
Carton and a carton blank Download PDFInfo
- Publication number
- EP1196334B1 EP1196334B1 EP00941470A EP00941470A EP1196334B1 EP 1196334 B1 EP1196334 B1 EP 1196334B1 EP 00941470 A EP00941470 A EP 00941470A EP 00941470 A EP00941470 A EP 00941470A EP 1196334 B1 EP1196334 B1 EP 1196334B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- panel
- anchor
- carton
- gusset
- base
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- B65D5/24—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 adjacent sides interconnected by gusset folds
- B65D5/241—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 adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body
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- 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
- B65D5/2019—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 with at least partially curved edges or the like
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- 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
- B65D5/2038—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 at least two opposed folded-up portions having a non-rectangular shape
- B65D5/2047—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 at least two opposed folded-up portions having a non-rectangular shape trapezoidal, e.g. to form a body with diverging side walls
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- 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
- B65D5/2057—Inter-engaging self-locking flaps
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- 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
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0413—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton
- B65D77/0433—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section formed by folding or erecting one or more blanks, e.g. carton the inner container being a tray or like shallow container, not formed by folding or erecting one or more blanks
Definitions
- the present invention relates to a carton for holding articles and more particularly, to a flat tubular carton for use in enclosing a tray of foodstuff.
- WO 97/29972 discloses a wraparound carton which has a side wall contacting arrangement to lock a base end retention panel, and is connected to a top wall contacting panel through a number of intermediate panels.
- the present invention seeks to overcome, or at least mitigate the problems of the prior art.
- One aspect of the invention provides a carton constructed from paperboard or like foldable sheet material for enclosing one or more articles, for example a tray of foodstuff, comprising a plurality of walls for forming a tubular structure including top and base walls, opposed side walls and one or more end retention walls, connected to one end of said top wall wherein the end retention wall is put into its end retaining position by means of a comer panel arrangement comprising a first anchor panel hinged to the base wall, a gusset structure hinged to the end retention wall and a second anchor panel hinged to both the first anchor panel and panel and the gusset structure characterised in that the gusset structure and the second anchor panel are sized and positioned to be put into overlapping relationship with one another against an adjacent one of the side walls and the first anchor panel is sized and positioned to be folded into face contacting relationship with the base wall, the relative positions of the first and, second anchor panels and the gusset structure being achieved as the carton is put into its tubular structure whereby the end retention wall
- the gusset structure comprises one or more gusset panels.
- the gusset structure comprises two hinged gusset panels, wherein one of the gusset panels is connected to the second anchor panel and the other gusset panel is connected to the end retention wall.
- the fold line between the first anchor panel and the second anchor panel may overlie the fold line between the adjacent side wall and the base wall.
- the second anchor panel is severed at least in part from the adjacent side wall and/or a part of the top wall by an aperture.
- the aperture may be shaped to receive and retain a protruding portion of the article.
- a second aspect of the invention provides a blank for forming a carton constructed from paperboard or like foldable sheet material comprising a first base panel, a first side panel, a top panel, a second side panel and a second base panel hingedly interconnected in series, the top panel further having at least one end retention panel hingedly connected thereto wherein a comer arrangement comprising a gusset panel and an anchor structure connects the end retention panel to the first base panel, and when erected to form a carton, secures the end retention panel in an erected condition wherein the gusset panel is hinged to the end retention panel, and wherein the anchor structure is hinged to the first base panel, characterised in that the anchor structure comprises a first anchor panel and a second anchor panel wherein the first and second anchor panels are capable of being placed in face contacting relationship with the first base panel and the first side panel respectively, and wherein an aperture is provided between the anchor structure and the first side panel.
- the second anchor panel may be hingedly connected to the first side panel.
- a second gusset panel may be provided which, when the blank is erected to form a carton, traverses the adjacent comer of the top panel.
- the blank 10 comprises a plurality of panels for forming a tubular structure including a first base panel 12, first side wall panel 14, a top wall panel 16, a second side wall panel 18, and a second base panel 20 hingedly connected in series along fold lines 42, 44, 46 and 48 respectively.
- a pair of end retention panels 22 and 24 are hingedly connected to the opposite ends of top wall panel 16 along fold lines 50 and 52 respectively.
- the first and second base panels 12, 20 comprise suitable panel securing means for securing each panel together.
- the panel securing means comprises one or more locking apertures 64 into which known locking tabs 66 on second side panel 20 may engage.
- Figure 1 shows three sets of locking tabs 66 and corresponding apertures 64.
- other securing means such as glue, may be used to connect the panels forming the opposing ends of the blank to form a tubular structure.
- the comer arrangement 26 comprises an anchor structure and one or more gusset panels.
- the gusset structure comprises one or more panels, for example a first gusset panel 38 and a second gusset panel 40.
- the anchor structure may comprise one or more panels, for example a first anchor panel 34 and a second anchor panel 36.
- the first anchor panel 34 is hingedly connected to the second base panel 20 along fold line 54.
- the fold line 54 extends at an acute angle from fold line 48, and, optionally, a cut line 55 extends from the one end of fold line 54 to the free edge of the base panel 20 to separate anchor panel 34 from base panel 20.
- the second anchor panel 36 is hingedly connected to the first anchor panel 34 along fold line 56.
- fold line 56 terminates at the intersection of fold line 54 with fold line 48 and the free edge of second side panel 18.
- the orientation of the fold lines 54, 56 allows first and second anchor panels to be folded into overlapping arrangement described below.
- fold lines 54 diverge from the point of intersection to define a triangular panel portion.
- the gusset structure is arranged so that first gusset panel 38 is hingedly connected to the second anchor panel 36 along fold line 58, and is further hingedly connected to the second gusset panel 40 along fold line 60.
- second gusset panel 40 is hingedly interconnected to an edge of the end retention panel 22 along fold line 62.
- the panels 34, 36, 38, 40 comprising the comer arrangement 26 are so constructed and arranged as to be separated from second side panel 18 and top panel 16.
- an aperture A is provided to space the aforesaid panels to define an opening to receive a tray, described below.
- FIG. 2A there is shown one example of an article to be packaged for example, a substantially rectangular tray T comprising a compartment for holding foodstuff F, and a flange L extending around at least part of the perimeter of the tray T.
- tray T is brought into contact with the top panel 16 with the flange L abutting the inner face of the top panel 16.
- the end retention panels 22, 24 are erected by folding the comer arrangements 26, 28, 30, 32.
- first anchor panel 34 is folded along fold line 54 such that it is placed in face contacting relationship with base panel 20.
- the folding operation additionally causes second anchor panel 36 to be placed in face contacting relationship with side panel 18.
- fold line 56 overlies fold line 48 in a substantially parallel relationship thereto.
- the folding operation causes first gusset panel 38 to be folded out of alignment with the second anchor panel 36, and for end retention panel 22 and second gusset panel 40 to be folded out of alignment with top panel 16, to automatically erect the end retention structure, as shown in Figure 2B.
- the carton construction is completed by reference to Figure 2C, whereby side panels 14 and 18 are folded out of alignment with the top panel 16 along fold lines 44 and 46 respectively.
- This folding action causes second anchor panel 36 to be brought into substantially face contacting relationship with first gusset panel 38 along fold line 58.
- the second anchor panel 36, and first and second gusset panels 38 and 40 together with fold lines 58, 60 and 62 are sized and angled such that end retention panel 22 is substantially perpendicular to the top panel 16.
- the second gusset panel 40 may taper inwardly towards the base of the carton 12, 20 by changing the dimensions of the above mentioned panels.
- First and second base panels 12 and 20 are then folded around the article T and placed in abutment, whereby locking tabs 66 on second base panel 20 are engaged in the corresponding locking aperture 64 on the first base panel 12, to form a composite base structure.
- the carton is in its fully erected and loaded state, as illustrated in Figure 2C.
- the second gusset panel 40 may traverse the comer of top panel 16.
- Aperture A forms a slit 68 ( Figure 2B) which permits the comer of flange L to protrude therethrough, to hold the tray in place.
- Comer arrangements 28, 30 and 32 are also folded in a similar manner to comer arrangement 26 by folding in directions indicated by arrows X.
- first anchor panel 34 is simultaneously folded out of alignment with second anchor panel 36.
- First base panel 20 is folded out of alignment with side panel 18. This angled relationship between the first anchor panel 34 and the second anchor panel 36 maintains first gusset panel 38 in abutting relationship thereto. It is possible to adjust the shape and angle of the end retention panel 22 and second gusset panel 40 according to the shape and configuration of the base and side panels. Beneficially the comer structures do not need to be glued.
- Blank 110 for forming a wraparound carton.
- Blank 110 is similar to blank 10, but top panel 116 has rounded comers, and is, therefore, suited for trays of foodstuffs which also have rounded corners.
- the remainder of the panels 112, 114, 118, 120, 122 and 124 and comer structures 126, 128, 130 and 132 are identical to the corresponding panels and comer structures of the first embodiment, and it is, therefore, unnecessary to describe the blank 110 in any greater detail.
- Figures 4A and 4B show the folding process but without the article present in the carton. It can be seen that the comer structures are folded in a direction X as described above, and the base panels are subsequently brought together in overlapping engagement such that locking tabs 166 engage with apertures 164 in like fashion.
- a blank 210 for forming a wrap-around carton formed from paperboard of like foldable sheet material comprises a first base panel 212, first side wall panel 214, a top panel 216, a second side wall panel 218 and a second base panel 220 hingedly connected in series along fold lines 242, 244, 246 and 248 respectively. End retention panels 222 and 224 are hingedly connected to the top panel 216 along fold lines 250 and 252 respectively.
- the first and second base panels 212, 220 comprises suitable securing means 264, 266 to form a composite base structure.
- comer arrangement 226, 228; 230, 232 that hingedly interconnect the base panels 212 and 220 with respective edges of the adjacent end retention panels 222, 224 respectively.
- comer arrangement 226 differs from comer arrangements 26 and 126 of the first two embodiments in that the gusset structure is provided by a single gusset panel 238.
- the comer arrangement 226 comprises an anchor structure, which in this embodiment comprises a first anchor panel 234, a second anchor panel 236 and a gusset panel 238 foldably connected together along fold lines 256 and 258.
- First anchor panel 234 is hingedly connected to base panel 220 along fold line 254 and gusset panel 238 is foldably connected to end retention panel 222 along fold line 260.
- fold lines 246, 258, 260 and 250 thereby all intersect at a comer of top panel 216.
- Fold line 254 is in an angular relationship with fold line 248 so that fold lines 256 and 258 are placed in alignment with fold lines 248, 246 when the tray is set up.
- the comer arrangement 226 defines an aperture A between the panels forming the comer arrangement and second side panel 218.
- first anchor panel 234 and second anchor panel 236 are folded in direction X out of alignment with second side panel 218 and second base panel 220 into face contacting relationship therewith.
- fold line 256 is caused to overlie fold line 248, and fold line 258 is caused to overlie fold line 246.
- gusset panel 238 and end retention panel 222 are caused to be folded out of alignment with top panel 216 to form an end retention structure which is held in place in a similar manner to the method described above.
- Side panels 214 and 218 are then folded out of alignment with top panel 216, and base panels 212 and 220 are likewise folded out of alignment with side panels 214 and 218, and are brought into overlapping relationship to form a tubular structure shown in Figure 6B.
- Base panels 212, 220 are secured together by the securing means, whereby engagement tabs 266 are engaged in apertures 264.
- the gusset panel 238 is shaped to be brought into face contacting relationship with side contacting panel 236, and fold line 260 is brought into contact with side edge 219 of second side panel 218 as the tubular structure is formed.
- end retention panel 222 and second side panel 218, causes these panels to taper inwardly towards the base of the erected carton to hold the article in place because the flange is not able to move in the Y or Z planes due to the taper, as shown in Figure 6B.
- Comer arrangements 228, 230 and 232 are also folded in a similar manner to comer arrangement 226 by folding in directions indicated by arrows X.
- the gusset panel 238 may traverse the comer of top panel 216.
- Aperture A forms a slit 268 which permits the comer of flange L to protrude therethrough, to hold the tray in place. If the carton is required to be cuboid in shape when erected, the shape of end retention panel 222 and side panel 218, as well as the shapes of the panels in the comer arrangement would need to be adjusted.
- a blank 310 which comprises a first base panel 312, first side panel 314, top panel 316, second side panel 318 and second base panel 320 hingedly interconnected in series along fold lines 342, 344, 346, 348 respectively.
- End retention panels 322 and 324 are hingedly connected to the top panel 316 along fold lines 350 and 352 respectively.
- the first and second base panels 312, 320 comprise similar securing means to that described above.
- comer arrangements 326, 328, 330, 334 hingedly interconnect the base and, in this embodiment the side panels, with the respective side edges of the end retention panels.
- Each comer arrangement is substantially identical, therefore, only one comer arrangement 326 will be discussed in more detail below.
- Comer arrangement 326 comprises a first anchor panel 334, a second anchor panel 336, and a gusset panel 338.
- the first anchor panel 334 is hingedly connected to the base panel 320 along fold line 354.
- fold line 354 extends substantially perpendicular to fold line 348.
- Second anchor panel 336 is hingedly interconnected to first anchor panel along fold line 356, which in this embodiment is co-linear with fold line 348.
- Second anchor panel 336 is further hingedly connected to gusset panel 338 along fold line 358.
- Second anchor panel 336 is optionally hingedly interconnected to side panel 318 along fold line 357, which in this embodiment, is co-extensive with fold line 354.
- Gusset panel 338 is hingedly interconnected with end retention panel 322 along fold line 360.
- fold line 360 is an extension of fold line 346.
- Fold lines 346, 360 and 350 and projections of fold lines 357 and 358 converge at a comer of top panel 316.
- Side contacting panel and gusset panel 338 are shaped to define two sides of an aperture A.
- first anchor panel 334 and second anchor panel 336 are folded into face contacting relationship with second base panel 320 and second side panel 318 respectively, and fold line 356 thereby overlies fold line 348.
- This folding operation is identical to that described above to cause end retention panel 332 and gusset panel 338 to be folded out of alignment with top panel 316 to form an end retention structure.
- first and second base panels are secured together to from a composite base wall.
- side panels 314 and 318, and end retention panels 322 and 324 are substantially perpendicular to the composite base wall comprising panels 312 and 320, and the top panel 316. It should, however, be understood that in alternative classes of embodiment the shapes of the panels, and positions of the fold lines may be altered such that the carton may taper inwardly from top to base.
- the carton of any of the embodiments referred to above can be formed by a series of sequential folding operations which can be performed in a straight-line machine so that the carton is not required to be rotated or inverted to complete its construction.
- the folding process is not limited to that described above and can be altered to particular manufacturing requirements.
- the or each anchor panel can be retained in abutting relationship with the side panel. This prevents the corresponding end retention panel from being moved out of its desired plane relative to the top panel once the carton is erected, thus holding the contents within the carton. Furthermore, the apertures provided at the comers of some of the embodiments of the invention locate the comers of the contents of the carton to prevent unwanted movement thereof.
- top bottom
- base side
- end the terms used "top” “base” “side” and “end” with respect to the panels of the carton and carton blank are relative terms and that the carton formed from the blank may be re-orientated as necessary or as desired.
- the carton blank may be re-arranged whereby some other wall such as a top wall or side wall is formed from the interlocked panels.
- Any reference to hinged connection should not be construed as necessarily referring to a single fold line only: indeed it is envisaged that hinged connection can be formed from one or more of one of the following, a score line, a frangible line or a fold line, without departing from the scope of invention.
- the present invention and its preferred embodiments relate to an article carrier which is shaped to provide satisfactory rigidity to hold items such as a tray for foodstuff securely but with a degree of flexibility.
- the shape of the blank minimises the amount of paperboard required for the carton.
- the items can be applied to the carrier by hand or automatic machinery. It is anticipated that the invention can be applied to a variety of cartons or tray types and not limited to those of the flat tubular sort, for example the flat tubular structure could be replaced by a carton with longer sides and end panels to receive articles such as cans or bottles.
Abstract
Description
- The present invention relates to a carton for holding articles and more particularly, to a flat tubular carton for use in enclosing a tray of foodstuff.
- Numerous food product containers have been provided in the prior art that are adapted to protect food products. For example, in the prior art, it is possible for foodstuffs to move within the tray, which is undesirable. Furthermore, the prior art discloses complicated end retention structures that require a lengthy and/or complicated folding process during the carton folding stage.
- One example of an end retention structure is illustrated in WO 97/29972 to The Mead Corporation which discloses a wraparound carton which has a side wall contacting arrangement to lock a base end retention panel, and is connected to a top wall contacting panel through a number of intermediate panels.
- By way of background information, for known similar carton constructions for enclosing one or more articles, comprising a plurality of walls for forming a tubular structure including top and base walls, opposed side walls and an end retention walls, the reader is referred to FR 2, 483, 884A and US 4 917 291 A (corresponding to the preambles of claims 1 and 7). Another tubular carton arrangement is also disclosed in GB 2 326 399A.
- The present invention seeks to overcome, or at least mitigate the problems of the prior art.
- One aspect of the invention provides a carton constructed from paperboard or like foldable sheet material for enclosing one or more articles, for example a tray of foodstuff, comprising a plurality of walls for forming a tubular structure including top and base walls, opposed side walls and one or more end retention walls, connected to one end of said top wall wherein the end retention wall is put into its end retaining position by means of a comer panel arrangement comprising a first anchor panel hinged to the base wall, a gusset structure hinged to the end retention wall and a second anchor panel hinged to both the first anchor panel and panel and the gusset structure characterised in that the gusset structure and the second anchor panel are sized and positioned to be put into overlapping relationship with one another against an adjacent one of the side walls and the first anchor panel is sized and positioned to be folded into face contacting relationship with the base wall, the relative positions of the first and, second anchor panels and the gusset structure being achieved as the carton is put into its tubular structure whereby the end retention wall is put into its end retaining position.
- According to an optional feature of this aspect of the invention the gusset structure comprises one or more gusset panels.
- Preferably, the gusset structure comprises two hinged gusset panels, wherein one of the gusset panels is connected to the second anchor panel and the other gusset panel is connected to the end retention wall. According to another optional feature of this aspect of the invention the fold line between the first anchor panel and the second anchor panel may overlie the fold line between the adjacent side wall and the base wall.
- According to another optional feature of this aspect of the invention the second anchor panel is severed at least in part from the adjacent side wall and/or a part of the top wall by an aperture. Preferably, the aperture may be shaped to receive and retain a protruding portion of the article.
- A second aspect of the invention provides a blank for forming a carton constructed from paperboard or like foldable sheet material comprising a first base panel, a first side panel, a top panel, a second side panel and a second base panel hingedly interconnected in series, the top panel further having at least one end retention panel hingedly connected thereto wherein a comer arrangement comprising a gusset panel and an anchor structure connects the end retention panel to the first base panel, and when erected to form a carton, secures the end retention panel in an erected condition wherein the gusset panel is hinged to the end retention panel, and wherein the anchor structure is hinged to the first base panel, characterised in that the anchor structure comprises a first anchor panel and a second anchor panel wherein the first and second anchor panels are capable of being placed in face contacting relationship with the first base panel and the first side panel respectively, and wherein an aperture is provided between the anchor structure and the first side panel.
- According to another optional feature of the second aspect of the invention the second anchor panel may be hingedly connected to the first side panel.
- According to a further optional feature of the second aspect of the invention a second gusset panel may be provided which, when the blank is erected to form a carton, traverses the adjacent comer of the top panel.
- Exemplary embodiments of the invention will now be described by way of example only, with reference to the accompanying drawings, in which:
- FIGURE 1 is a blank according to a first embodiment of the invention;
- FIGURE 2A is a perspective view of one example of an article to be packaged by the blank shown in Figure 1;
- FIGURES 2B and 2C are perspective view of the carton being formed from the blank of Figure 1 shown during construction and in an erected form;
- FIGURE 3 is a blank according to a second embodiment of the invention;
- FIGURES 4A and 4B are perspective views of the carton formed from the blank Figure 3 shown during construction and in an erected form;
- FIGURE 5 is a blank according to a third embodiment of the invention;
- FIGURES 6A and 6B are perspective views of the carton formed from the blank of Figure 5 shown during construction and in an erected form;
- FIGURE 7 is a blank according to a fourth embodiment of the invention; and
- FIGURES 8A & 8B are perspective views of the carton formed from the blank of Figure 7 shown during construction and in an erected form.
-
- Referring to Figure 1, there is shown a blank 10 for forming a wraparound carton made from paperboard or like foldable sheet material to package an article, for example a tray for holding food stuff, such as meat or frozen foodstuff. In this embodiment the blank 10 comprises a plurality of panels for forming a tubular structure including a
first base panel 12, firstside wall panel 14, atop wall panel 16, a secondside wall panel 18, and asecond base panel 20 hingedly connected in series alongfold lines end retention panels top wall panel 16 alongfold lines - The first and
second base panels more locking apertures 64 into which knownlocking tabs 66 onsecond side panel 20 may engage. Figure 1 shows three sets oflocking tabs 66 andcorresponding apertures 64. Alternatively, other securing means, such as glue, may be used to connect the panels forming the opposing ends of the blank to form a tubular structure. - There further comprises one or
more comer arrangements base panels end retention panels 22; 24. Each comer arrangement is substantially identical, therefore, onlycomer arrangement 26 will be discussed in more detail. In this embodiment, thecomer arrangement 26 comprises an anchor structure and one or more gusset panels. It will be seen from Figure 1 that the gusset structure comprises one or more panels, for example afirst gusset panel 38 and asecond gusset panel 40. The anchor structure may comprise one or more panels, for example afirst anchor panel 34 and asecond anchor panel 36. Thefirst anchor panel 34 is hingedly connected to thesecond base panel 20 alongfold line 54. Thefold line 54 extends at an acute angle fromfold line 48, and, optionally, acut line 55 extends from the one end offold line 54 to the free edge of thebase panel 20 to separateanchor panel 34 frombase panel 20. Thesecond anchor panel 36 is hingedly connected to thefirst anchor panel 34 alongfold line 56. Preferably,fold line 56 terminates at the intersection offold line 54 withfold line 48 and the free edge ofsecond side panel 18. The orientation of thefold lines fold lines 54 diverge from the point of intersection to define a triangular panel portion. - The gusset structure is arranged so that
first gusset panel 38 is hingedly connected to thesecond anchor panel 36 alongfold line 58, and is further hingedly connected to thesecond gusset panel 40 alongfold line 60. In turn,second gusset panel 40 is hingedly interconnected to an edge of theend retention panel 22 alongfold line 62. Thepanels comer arrangement 26 are so constructed and arranged as to be separated fromsecond side panel 18 andtop panel 16. Preferably, an aperture A is provided to space the aforesaid panels to define an opening to receive a tray, described below. - In Figure 2A, there is shown one example of an article to be packaged for example, a substantially rectangular tray T comprising a compartment for holding foodstuff F, and a flange L extending around at least part of the perimeter of the tray T.
- Turning now to the construction of the carton illustrated in Figures 2B and 2C tray T is brought into contact with the
top panel 16 with the flange L abutting the inner face of thetop panel 16. Thereafter, theend retention panels comer arrangements arrangement 26,first anchor panel 34 is folded alongfold line 54 such that it is placed in face contacting relationship withbase panel 20. The folding operation additionally causessecond anchor panel 36 to be placed in face contacting relationship withside panel 18. - Preferably,
fold line 56 overliesfold line 48 in a substantially parallel relationship thereto. In addition, the folding operation causesfirst gusset panel 38 to be folded out of alignment with thesecond anchor panel 36, and forend retention panel 22 andsecond gusset panel 40 to be folded out of alignment withtop panel 16, to automatically erect the end retention structure, as shown in Figure 2B. - The carton construction is completed by reference to Figure 2C, whereby
side panels top panel 16 alongfold lines second anchor panel 36 to be brought into substantially face contacting relationship withfirst gusset panel 38 alongfold line 58. In the embodiment, thesecond anchor panel 36, and first andsecond gusset panels fold lines end retention panel 22 is substantially perpendicular to thetop panel 16. However, thesecond gusset panel 40 may taper inwardly towards the base of thecarton - First and
second base panels locking tabs 66 onsecond base panel 20 are engaged in thecorresponding locking aperture 64 on thefirst base panel 12, to form a composite base structure. Thus the carton is in its fully erected and loaded state, as illustrated in Figure 2C. - The
second gusset panel 40 may traverse the comer oftop panel 16. Aperture A forms a slit 68 (Figure 2B) which permits the comer of flange L to protrude therethrough, to hold the tray in place.Comer arrangements comer arrangement 26 by folding in directions indicated by arrows X. - The end retention structure is held in place because as
fold line 56 overlies foldline 48,first anchor panel 34 is simultaneously folded out of alignment withsecond anchor panel 36.First base panel 20 is folded out of alignment withside panel 18. This angled relationship between thefirst anchor panel 34 and thesecond anchor panel 36 maintainsfirst gusset panel 38 in abutting relationship thereto. It is possible to adjust the shape and angle of theend retention panel 22 andsecond gusset panel 40 according to the shape and configuration of the base and side panels. Beneficially the comer structures do not need to be glued. - Turning now to the second embodiment of the present invention as illustrated in Figures 3 to 4B, like numerals have been used for like parts with the addition of numeral "1".
- Referring now in particular to Figure 3, there is shown a blank 110 for forming a wraparound carton.
Blank 110 is similar to blank 10, buttop panel 116 has rounded comers, and is, therefore, suited for trays of foodstuffs which also have rounded corners. The remainder of thepanels comer structures tabs 166 engage withapertures 164 in like fashion. - Turning now to the third embodiment of the present invention as illustrated in Figures 5 and 6A to 6B, like numerals have been used for like parts of the blank 10 in Figure 1 with the addition of the numeral "2".
- Referring in particular to Figure 5, there is shown a blank 210 for forming a wrap-around carton formed from paperboard of like foldable sheet material. The blank 210 comprises a
first base panel 212, firstside wall panel 214, atop panel 216, a secondside wall panel 218 and asecond base panel 220 hingedly connected in series alongfold lines End retention panels top panel 216 alongfold lines second base panels - There further comprises one or
more comer arrangements base panels end retention panels comer arrangement 226 will be discussed in more detail. In this embodiment, thecomer arrangement 226 differs fromcomer arrangements single gusset panel 238. - The
comer arrangement 226 comprises an anchor structure, which in this embodiment comprises afirst anchor panel 234, asecond anchor panel 236 and agusset panel 238 foldably connected together alongfold lines First anchor panel 234 is hingedly connected tobase panel 220 alongfold line 254 andgusset panel 238 is foldably connected to endretention panel 222 alongfold line 260. Preferably, foldlines top panel 216. Foldline 254 is in an angular relationship withfold line 248 so thatfold lines fold lines comer arrangement 226 defines an aperture A between the panels forming the comer arrangement andsecond side panel 218. - Turning now to the carton forming process as illustrated in Figures 6A and 6B and referring in particular to Figure 6A, which for clarity shows the carton forming process without the contents of the carton in place, the folding of two of the four comer arrangements is shown. The folding process is similar to the method outlined above for the first embodiment. It can be seen that
first anchor panel 234 andsecond anchor panel 236 are folded in direction X out of alignment withsecond side panel 218 andsecond base panel 220 into face contacting relationship therewith. In this embodiment, foldline 256 is caused to overliefold line 248, and foldline 258 is caused to overliefold line 246. Thereafter,gusset panel 238 andend retention panel 222 are caused to be folded out of alignment withtop panel 216 to form an end retention structure which is held in place in a similar manner to the method described above. -
Side panels top panel 216, andbase panels side panels Base panels engagement tabs 266 are engaged inapertures 264. Thegusset panel 238 is shaped to be brought into face contacting relationship withside contacting panel 236, and foldline 260 is brought into contact withside edge 219 ofsecond side panel 218 as the tubular structure is formed. - The trapezoidal shape of
end retention panel 222 andsecond side panel 218, causes these panels to taper inwardly towards the base of the erected carton to hold the article in place because the flange is not able to move in the Y or Z planes due to the taper, as shown in Figure 6B.Comer arrangements comer arrangement 226 by folding in directions indicated by arrows X. - In other embodiments the
gusset panel 238 may traverse the comer oftop panel 216.
Aperture A forms aslit 268 which permits the comer of flange L to protrude therethrough, to hold the tray in place. If the carton is required to be cuboid in shape when erected, the shape ofend retention panel 222 andside panel 218, as well as the shapes of the panels in the comer arrangement would need to be adjusted. - Turning now to the fourth embodiment of the present invention as illustrated in Figures 7, 8A and 8B. Like numerals have been used for like parts with the addition of the numeral "3".
- Referring now in particular to Figure 7, there is shown a blank 310 which comprises a
first base panel 312,first side panel 314,top panel 316,second side panel 318 andsecond base panel 320 hingedly interconnected in series alongfold lines -
End retention panels top panel 316 alongfold lines second base panels - As in the other embodiments,
comer arrangements comer arrangement 326 will be discussed in more detail below. -
Comer arrangement 326 comprises afirst anchor panel 334, asecond anchor panel 336, and agusset panel 338. Thefirst anchor panel 334 is hingedly connected to thebase panel 320 alongfold line 354. In this embodiment, foldline 354 extends substantially perpendicular to foldline 348.Second anchor panel 336 is hingedly interconnected to first anchor panel alongfold line 356, which in this embodiment is co-linear withfold line 348.Second anchor panel 336 is further hingedly connected togusset panel 338 alongfold line 358.Second anchor panel 336 is optionally hingedly interconnected toside panel 318 alongfold line 357, which in this embodiment, is co-extensive withfold line 354.Gusset panel 338 is hingedly interconnected withend retention panel 322 alongfold line 360. In thisembodiment fold line 360 is an extension offold line 346. Foldlines fold lines top panel 316. Side contacting panel andgusset panel 338 are shaped to define two sides of an aperture A. - To construct the carton shown in Figure 8B, it will be seen from Figure 8A that
first anchor panel 334 andsecond anchor panel 336 are folded into face contacting relationship withsecond base panel 320 andsecond side panel 318 respectively, and foldline 356 thereby overliesfold line 348. This folding operation is identical to that described above to causeend retention panel 332 andgusset panel 338 to be folded out of alignment withtop panel 316 to form an end retention structure. - Similarly the tubular structure is formed around the article as shown in Figure 8B. First and second base panels are secured together to from a composite base wall. As can be seen from Figure 8B,
side panels retention panels wall comprising panels top panel 316. It should, however, be understood that in alternative classes of embodiment the shapes of the panels, and positions of the fold lines may be altered such that the carton may taper inwardly from top to base. - It is envisaged that the carton of any of the embodiments referred to above can be formed by a series of sequential folding operations which can be performed in a straight-line machine so that the carton is not required to be rotated or inverted to complete its construction. The folding process is not limited to that described above and can be altered to particular manufacturing requirements.
- It will be understood that in all the above embodiments, due to the fact that the gusset panel is folded out of alignment with the anchor structure, the or each anchor panel can be retained in abutting relationship with the side panel. This prevents the corresponding end retention panel from being moved out of its desired plane relative to the top panel once the carton is erected, thus holding the contents within the carton. Furthermore, the apertures provided at the comers of some of the embodiments of the invention locate the comers of the contents of the carton to prevent unwanted movement thereof.
- It will be recognised that as used herein, the terms used "top" "base" "side" and "end" with respect to the panels of the carton and carton blank are relative terms and that the carton formed from the blank may be re-orientated as necessary or as desired. Furthermore, it will be recognised that rather than the base wall being formed from the interlocked panels, the carton blank may be re-arranged whereby some other wall such as a top wall or side wall is formed from the interlocked panels. Any reference to hinged connection should not be construed as necessarily referring to a single fold line only: indeed it is envisaged that hinged connection can be formed from one or more of one of the following, a score line, a frangible line or a fold line, without departing from the scope of invention.
- The present invention and its preferred embodiments relate to an article carrier which is shaped to provide satisfactory rigidity to hold items such as a tray for foodstuff securely but with a degree of flexibility. The shape of the blank minimises the amount of paperboard required for the carton. The items can be applied to the carrier by hand or automatic machinery. It is anticipated that the invention can be applied to a variety of cartons or tray types and not limited to those of the flat tubular sort, for example the flat tubular structure could be replaced by a carton with longer sides and end panels to receive articles such as cans or bottles.
Claims (9)
- A carton constructed from paperboard or like foldable sheet material for enclosing one or more articles, for example a tray (T) of foodstuff (F), comprising a plurality of walls for forming a tubular structure including top (16, 116, 216, 316) and base (12, 20; 112, 120; 212, 220; 312, 320) walls, opposed side walls (14, 18; 114, 118; 214, 218; 314, 318) and one or more end (22, 24; 122, 124; 222, 224; 322, 324) retention walls, connected to one end of said top wall wherein the end retention wall is put into its end retaining position by means of a comer panel arrangement (26, 28, 30, 32; 126, 128, 130, 132; 226, 228, 230, 232; 326, 328, 330, 332) comprising a first anchor panel (34; 134; 234; 334) hinged to the base wall, a gusset structure (38, 40; 138, 140; 238; 338) hinged to the end retention wall and a second anchor panel (36; 136; 236; 336) hinged to both the first anchor panel and the gusset structure characterised in that the gusset structure (38, 40; 138, 140; 238, 338) and the second anchor panel (36; 136; 236; 336) are sized and positioned to be put into overlapping relationship with one another against an adjacent one of the side walls (14, 18; 114, 118; 214, 218; 314, 318) and the first anchor panel is sized and positioned to be folded into face contacting relationship with the base wall, the relative positions of the first and second anchor panels and the gusset structure being achieved as the carton is put into its tubular structure whereby the end retention wall is put into its end retaining position.
- The carton as claimed in claim 1, wherein the gusset structure (38, 40; 138, 140; 238; 338) comprises one or more gusset panels (38, 40; 138, 140; 238, 338).
- The carton as claimed in claim 2 wherein the gusset structure (38, 40; 138, 140) comprises two hinged gusset panels (38, 40; 138, 140), wherein one of the gusset panels (38; 138) is connected to the second anchor panel (36; 136) and the other gusset panel (40; 140) is connected to the end retention wall (22; 122).
- The carton as claimed in claim 2 or claim 3 wherein the fold line (56; 156; 256; 356) between the first anchor panel (34; 134; 234; 334) and the second anchor panel (36; 136; 236; 256) overlies the fold line (48; 148; 248; 348) between the adjacent side wall (18; 118; 218; 318) and the base wall (20; 120; 220; 320).
- The carton as claimed in any one of claims 2 to 4 wherein the second anchor panel (36; 136; 236; 336) is severed at least in part from the adjacent side wall (18; 118; 218; 318) and/or a part of the top wall (16; 116; 216; 316) by an aperture (A).
- The carton as claimed in claim 5 wherein the aperture (A) is shaped to receive and retain a protruding portion (L) of the article (T).
- A blank (10; 110; 210; 310) for forming a carton constructed from paperboard or like foldable sheet material comprising a first base panel (12; 112; 212; 312), a first side panel (14; 114; 214; 314), a top panel (16; 116; 216; 316), a second side panel (18; 118; 218; 318) and a second base panel (20; 120; 220; 320) hingedly interconnected in series, the top panel further having at least one end retention panel (22, 24; 122, 124; 222, 224; 322, 324) hingedly connected thereto wherein a comer arrangement (26, 28, 30, 32; 126, 128, 130, 132; 226, 228, 230, 232; 326, 328,330, 332) comprising a gusset panel (38, 40; 138, 140; 238, 338) and an anchor structure (34, 36; 134, 136; 234, 236; 334, 336) connects the end retention panel to the first base panel, and when erected to form a carton, secures the end retention panel in an erected condition wherein the gusset panel is hinged to the end retention panel, and wherein the anchor structure is hinged to the first base panel, characterised in that the anchor structure comprises a first anchor panel (34; 134; 234; 334) and a second anchor panel (36; 136; 236; 336), wherein the first and second anchor panels are capable of being placed in face contacting relationship with the first base panel (12; 112; 212; 312) and the first side panel (14; 114; 214; 314) respectively, and wherein an aperture (A) is provided between the anchor structure and the first side panel.
- The blank (310) according to claim7, wherein the second anchor panel (336) is hingedly connected to the first side panel (318).
- The blank (10; 110) according to claim 7 wherein the gusset panel (40; 140), when the blank is erected to form a carton, traverses the adjacent comer of the top panel (16; 116).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9914181 | 1999-06-18 | ||
GBGB9914181.4A GB9914181D0 (en) | 1999-06-18 | 1999-06-18 | Carton and a carton blank |
PCT/US2000/016571 WO2000078634A1 (en) | 1999-06-18 | 2000-06-15 | Carton and a carton blank |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196334A1 EP1196334A1 (en) | 2002-04-17 |
EP1196334B1 true EP1196334B1 (en) | 2004-11-10 |
Family
ID=10855573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00941470A Expired - Lifetime EP1196334B1 (en) | 1999-06-18 | 2000-06-15 | Carton and a carton blank |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1196334B1 (en) |
AT (1) | ATE281986T1 (en) |
AU (1) | AU5617600A (en) |
DE (1) | DE60015765T2 (en) |
ES (1) | ES2231211T3 (en) |
GB (1) | GB9914181D0 (en) |
PT (1) | PT1196334E (en) |
WO (1) | WO2000078634A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010036685A1 (en) * | 2008-09-24 | 2010-04-01 | Graphic Packaging International, Inc. | Carton with locking sections |
CA2738060C (en) | 2008-10-14 | 2013-03-26 | Graphic Packaging International, Inc. | Carrier with locking features |
CA2832075C (en) | 2011-04-20 | 2017-01-03 | Graphic Packaging International, Inc. | Carrier with locking features |
ES2592630T3 (en) | 2011-05-12 | 2016-11-30 | Graphic Packaging International, Inc. | Transport device with retention feature |
US10384846B2 (en) | 2013-05-24 | 2019-08-20 | Graphic Packaging International, Llc | Arrangement of containers in a carton |
US9415915B2 (en) | 2013-05-24 | 2016-08-16 | Graphic Packaging International, Inc. | Carton for articles |
CA2964967C (en) | 2014-12-16 | 2021-01-05 | Graphic Packaging International, Inc. | Carton for articles |
MX2017013474A (en) | 2015-05-07 | 2018-03-01 | Graphic Packaging Int Llc | Carton with handle. |
USD867900S1 (en) | 2018-03-01 | 2019-11-26 | Graphic Packaging International, Llc | Carrier |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3137435A (en) * | 1963-02-01 | 1964-06-16 | Waldorf Paper Prod Co | Sliced meat package |
FR2483884A1 (en) * | 1980-06-06 | 1981-12-11 | Parrochia Maxime | Packing box folded from single sheet of cardboard - has folding sides and lid in two halves locked by tab and tabs under base |
US4917291A (en) * | 1989-07-26 | 1990-04-17 | Shinzo Saiki | Unitary gift box |
US5351878A (en) * | 1993-11-12 | 1994-10-04 | Riverwood International Corporation | Wrap-around carrier with end restraints |
WO1997029972A1 (en) | 1996-02-14 | 1997-08-21 | The Mead Corporation | Two-tier cup package having divider panel-retaining means |
GB2326399B (en) * | 1997-06-19 | 2001-06-27 | Fisher Matthews Ltd | A package |
GB2338474A (en) * | 1998-06-15 | 1999-12-22 | Assidomaen Holdings Uk Limited | Leak resistant containers |
-
1999
- 1999-06-18 GB GBGB9914181.4A patent/GB9914181D0/en not_active Ceased
-
2000
- 2000-06-15 EP EP00941470A patent/EP1196334B1/en not_active Expired - Lifetime
- 2000-06-15 ES ES00941470T patent/ES2231211T3/en not_active Expired - Lifetime
- 2000-06-15 AT AT00941470T patent/ATE281986T1/en not_active IP Right Cessation
- 2000-06-15 PT PT00941470T patent/PT1196334E/en unknown
- 2000-06-15 AU AU56176/00A patent/AU5617600A/en not_active Abandoned
- 2000-06-15 WO PCT/US2000/016571 patent/WO2000078634A1/en active Search and Examination
- 2000-06-15 DE DE60015765T patent/DE60015765T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
PT1196334E (en) | 2005-02-28 |
DE60015765D1 (en) | 2004-12-16 |
ATE281986T1 (en) | 2004-11-15 |
WO2000078634A1 (en) | 2000-12-28 |
EP1196334A1 (en) | 2002-04-17 |
ES2231211T3 (en) | 2005-05-16 |
GB9914181D0 (en) | 1999-08-18 |
AU5617600A (en) | 2001-01-09 |
DE60015765T2 (en) | 2005-12-15 |
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