EP1799588B1 - Carton - Google Patents
Carton Download PDFInfo
- Publication number
- EP1799588B1 EP1799588B1 EP05766660A EP05766660A EP1799588B1 EP 1799588 B1 EP1799588 B1 EP 1799588B1 EP 05766660 A EP05766660 A EP 05766660A EP 05766660 A EP05766660 A EP 05766660A EP 1799588 B1 EP1799588 B1 EP 1799588B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carton
- wall
- frangible means
- walls
- side walls
- 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.)
- Active
Links
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000012780 transparent material Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 235000013305 food Nutrition 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B65D5/42—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
-
- 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
- B65D5/4204—Inspection openings or windows
-
- 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
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits
Definitions
- This invention relates to a carton according to the preamble of claim 1, and particularly but not necessarily exclusively to a carton for holding sandwiches therein.
- a carton such as sandwich carton
- a plurality of wall panels which, when constructed, form a closed carton.
- One of the wall panels can be moved between open and closed conditions to allow insertion and/or removal of one or more items in/out the carton.
- Such cartons typically have the function of holding the contents therein until the same is purchased by a user, whereafter the contents are removed and the carton is disposed of.
- US4432489 discloses a pie carton which has a triangular top closure and bottom support panel with side wall panels attached to the same.
- the triangular top closure is hingedly connected to a side wall to allow opening and closing of the carton.
- Frangible tear strips can be provided on the side walls to allow the carton to be adhered shut and then to be subsequently opened.
- the carton has only a single level of access into the interior thereof and the carton has only a single use when opened using this single level of access.
- a carton for holding one or more items said carton formed from a blank and said blank including two side walls which are substantially triangular in shape and a rear wall, base wall and front wall which arc substantially quadrilateral in shape, the walls joined together when assembled in such a manner so as to define a closed carton having a substantially triangular cross section, characterised in that the two triangular side walls are each joined to opposite sides of the base wall along fold lines and the tear wall is joined to an end of the base wall along a fold line, the front wall is hingedly connected to at least one of the triangular side walls, frangible means being provided along a part or whole of the rear and base wall to allow a part of said walls to be separated or removed on breaking of said frangible means, and wherein on removal of said frangible means at least one of the triangular side walls adjacent a remaining portion of the rear and base wall is movable relative to the front wall to open said carton.
- the present invention provides a new opening mechanism for allowing a user to gain easy access to the contents of the carton.
- the carton is typically a one use only carton and is disposed of after use.
- the carton defines a single cavity or compartment therein.
- one or more walls or partition means can be provided in the interior of the assembled carton to define more than one compartment therein.
- the carton is formed from a single blank.
- At least one of the external walls, and preferably all of the external walls of the carton, when in an erect form, is substantially smooth and even without any creases provided thereon. This enables uninterrupted graphics to be displayed on each wall, thereby increasing the aesthetic appeal of the carton.
- the second wall and/or the at least one further wall forms a tray element or surface upon movement of said at least one further wall relative to said second wall.
- the carton can be put to further use by moving the carton from a first pre-defined shape wherein a closed carton is formed to a second pre-defined shape wherein a tray element is formed.
- the tray element can be used to support one or more items stored in the carton thereon upon opening of the carton.
- one or more of the remaining portions of the at least first wall form one or more side walls of said tray element.
- the second wall is provided substantially opposite to said at least first wall when the carton is in a closed assembled condition.
- the frangible means arc provided along a part or whole of at least two walls of the carton.
- the two walls of the carton are typically adjacent and/or joined to each other when the carton is assembled.
- a plurality of frangible means are provided on the carton.
- the plurality of frangible means arc each typically independently removable or breakable with respect to the other frangible means.
- the width of the at least first wall is different to the length of the same and the frangible means are typically provided along the length of said wall.
- frangible means arc provided longitudinally of the carton.
- the frangible means can include any or any combination of one or more weakened portions, perforations, cut portions and/or the like.
- the frangible means can be broken to access the contents of the carton and/or further closure means can be provided on the carton via which a user can access the contents of the carton.
- the carton includes at least a front wall, rear wall, base and side walls.
- the frangible means are provided along a whole or part of the base and/or rear wall of the carton.
- the means for opening the carton is typically hidden from the view of a potential purchaser when the carton is displayed on a shelf in a retail outlet, thereby providing the from of the carton with an improved aesthetic appearance and increasing the appeal of the carton/product to the purchaser.
- At least the front of the carton typically forms the base of the tray element once the frangible means have been removed.
- the front of the carton can form the second wall and at least the rear of the carton can form the first wall.
- At least the front wall of the carton is formed from or provided with transparent material thereon to allow a user to view the contents of the carton when the carton is in a closed condition.
- a pre-determined shaped window is provided in the front wall of the carton and transparent material is joined to rhe walls of the carton surrounding the window to cover the window.
- the transparent material can be joined to the carton via any or any combination of heat welding, adhesive, staples, clips and/or the like.
- the side walls of the carton are substantially triangular in shape. Further preferably the side walls of the carton are in the form of isosceles triangles.
- the carton is in the form of a sandwich pack for holding one or more sandwiches therein.
- the sandwiches can be viewed through the front wall and/or side walls of the carton.
- the front wall of the carton can be provided with a flange or lip which extends outwardly from the side walls, base and/or rear walls of the carton.
- the side walls, base and/or rear walls are provided with a lip portion which engages with an edge of said front wall when the carton is formed.
- the lip portion engages with a rear surface of the front wall of the carton when formed.
- the lip portion can be engaged to the front wall via any or any combination of adhesive, heat scaling, staples, clips and/or the like.
- the second wall or front wall of the carton can be moved from a closed condition when the carton is assembled to an open condition to allow access to the contents of the carton as an alternative opening mechanism to the frangible means if required.
- the carton is formed from a board material and said board material is provided with at least one coating laver thereon which, in the presence of heat, becomes adhesive to allow engagement of one or more walls of the carton.
- the coating layer can include a plastic coating, thereby providing a moisture barrier.
- one or more web portions are provided adjacent one or more corners of said carton.
- the web portions prevent leakage of any fluid or other matter from the carton in use.
- Each web portion can include at least two sections joined together along a fold line and said sections are provided between two or more adjacent walls of the carton.
- one of the sections is typically folded onto the other section and a surface of said sections is then typically adhered to a wall of the carton, such as for example an interior wall of the carton.
- a carton for holding one or more items said carton including a plurality of walls which are joined together when assembled in such a manner so as to define a closed carton of pre-defined shape and wherein frangible means are provided along a part or whole of at least one of said walls and breaking of said frangible means allows the carton to be moved from a closed condition to an open condition, said carton forming a tray like element in said open condition.
- blank for forming a carton for holding one or more items said blank including all plurality of wall panels joined together by fold lines and movable with respect to each other so that when assembled form a closed carton of having a substantially triangular cross section, said blank including two side walls which are substantially triangular in shape and a rear wall, base wall and front wall which are substantially quadrilateral in shape, characterised in that the two triangular side walls are each joined to opposite sides of the base wall along fold lines and the rear wall is joined to an end of the base wall along a fold line, the front wall is hingedly connected to at least one of the triangular side walls, frangible means being provided along a part or whole of the rear and base wall panel to allow a part of said walls to be separated or removed on breaking of said frangible means, and wherein on removal of said frangible means at least one of the triangular side walls adjacent a remaining portion of the rear and base wall is movable relative to the front wall to open said carton when formed
- a carton for holding one or more items said carton including a plurality of walls which are joined together when assembled in such a manner so as to define a closed carton of pre-defined shape, frangible means being provided along a part or whole of at least a first wall to allow a part of said first wall to be separated of removed on breaking of said frangible means, and wherein a remaining portion of the first wall or at least one further wall adjacent a remaining portion of the first wall is hingedly connected to a second wall and said remaining portion of the first wall or said at least one further wall is movable relative to said second wall on removal of said frangible means to open said carton.
- the advantage of the carton according to the present invention is than ir provided a substantially scaled container when in a closed condition, thereby making it suitable for the containment of food products therein so as to maintain the freshness of the food for an extended period of time compared to existing cartons.
- the carton is "sealed" in that the shelf life of the product is increased and this term therefore covers either hermetically sealed and non-hermetically sealed arrangements. Removal of the frangible means allows a tray element to be formed from or with the carton, thereby allowing the contents of the carton, such as food, to be located therein to make the same more easily accessible to a user.
- the carton of the present invention is of particular use with food products, the present invention is not limited to such application.
- FIG. 1 there is illustrated a carton blank 2 for forming a sandwich pack 4 when assembled.
- the carton blank includes a rear panel 6 which is substantially rectangular in shape.
- a base panel 8 is joined to rear panel 6 along fold line (shown by dotted lines) 10.
- Side panels 12, 14, substantially in the form of isosceles triangles, are joined to either side of base panel 8 along fold lines 16, 18.
- Web portions 20, 22, 24 and 26 are provided between rear panel 6 and side panels 12,14. More specifically, web portion 20 is joined to rear panel 6 along fold line 28, web portion 22 is joined along a first side to web portion 20 via fold line 30 and to side panel 12 via fold line 32. Web portion 24 is joined to rear panel 6 along fold line 34, web portion 26 is joined along a first side to web portion 24 via fold line 36 and to side panel 14 via fold line 38.
- Web portions 20, 24 are provided along substantially the entire length of rear panel 6, whereas web portions 22, 26 are provided along only part of the length of side walls 12, 14 respectively.
- the top corners 40, 42 of web portions 22, 26 end short of rop corners 44, 46 of side panels 12, 14 respectively.
- a substantially V-shaped notch 48, 50 is provided in each of web portions 22, 26 adjacent fold lines 30, 36 respectively.
- a front panel 52 is joined to side panel 14 along fold line 54.
- a window 56 is defined in front panel 52 such that the contents of the carton 2 can be viewed when the carton is formed and loaded with said contents.
- a suitable material can be provided over the window, such as a transparent plastics material. This transparent plastics material is typically adhered to the surround of the window during or prior to erection of the carton.
- the transparent material can be provided at least partially along the side panel 14 of the carton in addition to the front panel so that a user can view the contents of the carton from the side.
- the fold line 54 is formed in a V shape to allow a part of window 56 to be provided on side panel 11.
- Frangible means in the form of parallel perforation lines 58, 60 are provided centrally along the length of the rear panel 6 and base panel 8.
- the perforation lines can be formed in the carton using any conventional technique, such as die cutting.
- the frangible means can be provided at any location on the carton walls if required (i.e. offset to the left or to the right).
- a tab or lip portion 62 is joined to rear panel 6 along fold line 64.
- An extension portion 66 is joined to tab portion 62 along fold line 68.
- a tab or lip portion 70 is joined to side panel 12 along fold line 72.
- An extension portion 74 is joined to tab portion 70 along fold line 76.
- a tab or lip portion 78 is joined to base panel 8 along fold line 80.
- a tab portion 82 is provided at the end of perforation lines which protrudes from tab portion 78.
- a frangible or recessed portion can be provided along a peripheral edge of front panel 52.
- the recess portion or removal of the frangible portion to form the recess portion provides gripping means to allow a user to open front panel 52 if required.
- web portion 22 is folded onto side panel 12 via fold line 32 and the rear of web portion 20 is folded onto the rear of web portion 22, thereby bringing side panel 12 and rear panel 6 into abutting relationship.
- Web portions 20, 22 are adhered together and to side panel 12 via head sealing or other adhesive as is described in more detail below.
- Web portion 26 is folded onto side panel 14 via fold line 42 and the rear of web portion 24 is folded onto the rear of web portion 24, thereby bringing side panel 14 into abutting relationship with rear panel 6.
- Web portions 24, 26 are adhered together and to side panel 14 via heat sealing or other adhesive.
- V-shaped notches 48, 50 and the shortened fold lines 32, 34 allow a near free edge to be provided on the interior side panels of the carton when created.
- the web portions 24, 26 reduce the likelihood of oil from the sandwiches and/or other contents from the sandwiches leaking out of the carton when the carton is in an upright position, thereby helping to seal the carton when in a closed condition.
- Front panel 52 is then folded over the open end 84 and tab portions 62, 70 and 78 are brought into engagement with the free edges of front panel 52 to form protruding lip portions. These lip portions provide a gripping surface by which the carton can be easily handled and carried by a user.
- the entire front panel 52 is free for printing and/or design work to be located thereon without obstruction from any closure, folding or engagement portions, thereby increasing the aesthetic appeal of the product to a user.
- the board from which the carton is formed is typically provided with a heat sensitive adhesive coating thereon.
- a heat sensitive adhesive coating thereon.
- a user When a user wishes to extract the contents of the carton from the carton, they can separate the tab portions 62, 70 and 78 from front panel 52 and access the contents via open end 84.
- the user typically grips a tab portion 82 and breaks the frangible means along lines 58, 60 to remove strip 84 from the carton.
- Frangible means can also be provided along tab portions 62 and 78, thereby allowing separation of the remaining rear and base panel portions 6, 8 from front panel 52.
- the remaining rear and base panel portions 6, 8 can then be moved outwardly of each other by pivoting the same about fold lines 54 and 72 to form a tray element, as shown in figure 4 .
- front panel 52 and side panels 12, 14 form the base of the tray element.
- Remaining rear and base panel portions 6, 8 form shallow side walls of the tray element.
- the sandwiches can therefore be supported on the base of the tray element and can be easily accessed by a user.
- Frangible portions can also be provided on or adjacent the lip or rab portions to allow easy opening of the carton via front panel 52.
- the carton of the present invention can be provided in any suitable shape, size and/or design and the blank can be formed from any suitable material.
- the carton is typically formed from single layer board material having at least one coating layer provided thereon.
- the layer becomes adhesive and allows panels of the carton to be adhered together on application of pressure and heat thereto, thereby removing the requirement for adhesive to be separately applied to the carton as is conventionally the case.
- each blank is inserted into a forming machine/apparatus which automatically erects the carton and heat seals the relevant portions of the carton together.
- the sandwich is then located in the open end of the carton and the front panel is heat sealed to a closed position via the flange elements.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Making Paper Articles (AREA)
Abstract
Description
- This invention relates to a carton according to the preamble of claim 1, and particularly but not necessarily exclusively to a carton for holding sandwiches therein.
- It is known to provide a carton, such as sandwich carton, with a plurality of wall panels which, when constructed, form a closed carton. One of the wall panels can be moved between open and closed conditions to allow insertion and/or removal of one or more items in/out the carton. Such cartons typically have the function of holding the contents therein until the same is purchased by a user, whereafter the contents are removed and the carton is disposed of.
-
US4432489 discloses a pie carton which has a triangular top closure and bottom support panel with side wall panels attached to the same. The triangular top closure is hingedly connected to a side wall to allow opening and closing of the carton. Frangible tear strips can be provided on the side walls to allow the carton to be adhered shut and then to be subsequently opened. The carton has only a single level of access into the interior thereof and the carton has only a single use when opened using this single level of access. - It is an aim of the present invention to provide a carton, wherein the carton can be put to further use, at least temporarily, following opening of the carton.
- It is a further aim of the present invention to provide a carton having alternative opening means for accessing the contents of the carton.
- According to a first aspect of the present invention there is provided a carton for holding one or more items, said carton formed from a blank and said blank including two side walls which are substantially triangular in shape and a rear wall, base wall and front wall which arc substantially quadrilateral in shape, the walls joined together when assembled in such a manner so as to define a closed carton having a substantially triangular cross section, characterised in that the two triangular side walls are each joined to opposite sides of the base wall along fold lines and the tear wall is joined to an end of the base wall along a fold line, the front wall is hingedly connected to at least one of the triangular side walls, frangible means being provided along a part or whole of the rear and base wall to allow a part of said walls to be separated or removed on breaking of said frangible means, and wherein on removal of said frangible means at least one of the triangular side walls adjacent a remaining portion of the rear and base wall is movable relative to the front wall to open said carton.
- Thus, the present invention provides a new opening mechanism for allowing a user to gain easy access to the contents of the carton. The carton is typically a one use only carton and is disposed of after use.
- In one embodiment the carton defines a single cavity or compartment therein. However, in an alternative embodiment one or more walls or partition means can be provided in the interior of the assembled carton to define more than one compartment therein.
- Preferably the carton is formed from a single blank.
- At least one of the external walls, and preferably all of the external walls of the carton, when in an erect form, is substantially smooth and even without any creases provided thereon. This enables uninterrupted graphics to be displayed on each wall, thereby increasing the aesthetic appeal of the carton.
- Preferably the second wall and/or the at least one further wall forms a tray element or surface upon movement of said at least one further wall relative to said second wall. Thus, it can be seen that the carton can be put to further use by moving the carton from a first pre-defined shape wherein a closed carton is formed to a second pre-defined shape wherein a tray element is formed. The tray element can be used to support one or more items stored in the carton thereon upon opening of the carton.
- Preferably one or more of the remaining portions of the at least first wall form one or more side walls of said tray element.
- Preferably the second wall is provided substantially opposite to said at least first wall when the carton is in a closed assembled condition.
- Preferably the frangible means arc provided along a part or whole of at least two walls of the carton. The two walls of the carton are typically adjacent and/or joined to each other when the carton is assembled.
- Preferably a plurality of frangible means are provided on the carton. The plurality of frangible means arc each typically independently removable or breakable with respect to the other frangible means.
- In one embodiment the width of the at least first wall is different to the length of the same and the frangible means are typically provided along the length of said wall.
- Preferably the frangible means arc provided longitudinally of the carton.
- The frangible means can include any or any combination of one or more weakened portions, perforations, cut portions and/or the like.
- The frangible means can be broken to access the contents of the carton and/or further closure means can be provided on the carton via which a user can access the contents of the carton.
- In one embodiment the carton includes at least a front wall, rear wall, base and side walls.
- Preferably the frangible means are provided along a whole or part of the base and/or rear wall of the carton. Thus, in one embodiment the means for opening the carton is typically hidden from the view of a potential purchaser when the carton is displayed on a shelf in a retail outlet, thereby providing the from of the carton with an improved aesthetic appearance and increasing the appeal of the carton/product to the purchaser.
- In the above embodiment, at least the front of the carton typically forms the base of the tray element once the frangible means have been removed. Thus, the front of the carton can form the second wall and at least the rear of the carton can form the first wall.
- Preferably at least the front wall of the carton is formed from or provided with transparent material thereon to allow a user to view the contents of the carton when the carton is in a closed condition.
- In one embodiment a pre-determined shaped window is provided in the front wall of the carton and transparent material is joined to rhe walls of the carton surrounding the window to cover the window.
- The transparent material can be joined to the carton via any or any combination of heat welding, adhesive, staples, clips and/or the like.
- Preferably the side walls of the carton are substantially triangular in shape. Further preferably the side walls of the carton are in the form of isosceles triangles.
- In a preferred embodiment the carton is in the form of a sandwich pack for holding one or more sandwiches therein. The sandwiches can be viewed through the front wall and/or side walls of the carton.
- The front wall of the carton can be provided with a flange or lip which extends outwardly from the side walls, base and/or rear walls of the carton. In one example, the side walls, base and/or rear walls are provided with a lip portion which engages with an edge of said front wall when the carton is formed.
- Preferably the lip portion engages with a rear surface of the front wall of the carton when formed.
- The lip portion can be engaged to the front wall via any or any combination of adhesive, heat scaling, staples, clips and/or the like.
- The second wall or front wall of the carton can be moved from a closed condition when the carton is assembled to an open condition to allow access to the contents of the carton as an alternative opening mechanism to the frangible means if required.
- In one embodiment the carton is formed from a board material and said board material is provided with at least one coating laver thereon which, in the presence of heat, becomes adhesive to allow engagement of one or more walls of the carton. For example, the coating layer can include a plastic coating, thereby providing a moisture barrier.
- Preferably one or more web portions are provided adjacent one or more corners of said carton. The web portions prevent leakage of any fluid or other matter from the carton in use.
- Each web portion can include at least two sections joined together along a fold line and said sections are provided between two or more adjacent walls of the carton. During assembly of the carton, one of the sections is typically folded onto the other section and a surface of said sections is then typically adhered to a wall of the carton, such as for example an interior wall of the carton.
- In one embodiment of the present invention there is provided a carton for holding one or more items, said carton including a plurality of walls which are joined together when assembled in such a manner so as to define a closed carton of pre-defined shape and wherein frangible means are provided along a part or whole of at least one of said walls and breaking of said frangible means allows the carton to be moved from a closed condition to an open condition, said carton forming a tray like element in said open condition.
- In a further aspect of the present invention there is provided blank for forming a carton for holding one or more items, said blank including all plurality of wall panels joined together by fold lines and movable with respect to each other so that when assembled form a closed carton of having a substantially triangular cross section, said blank including two side walls which are substantially triangular in shape and a rear wall, base wall and front wall which are substantially quadrilateral in shape, characterised in that the two triangular side walls are each joined to opposite sides of the base wall along fold lines and the rear wall is joined to an end of the base wall along a fold line, the front wall is hingedly connected to at least one of the triangular side walls, frangible means being provided along a part or whole of the rear and base wall panel to allow a part of said walls to be separated or removed on breaking of said frangible means, and wherein on removal of said frangible means at least one of the triangular side walls adjacent a remaining portion of the rear and base wall is movable relative to the front wall to open said carton when formed.
- In one embodiment there is provided a method of constructing a carton.
- In one embodiment of the present invention there is provided a carton for holding one or more items, said carton including a plurality of walls which are joined together when assembled in such a manner so as to define a closed carton of pre-defined shape, frangible means being provided along a part or whole of at least a first wall to allow a part of said first wall to be separated of removed on breaking of said frangible means, and wherein a remaining portion of the first wall or at least one further wall adjacent a remaining portion of the first wall is hingedly connected to a second wall and said remaining portion of the first wall or said at least one further wall is movable relative to said second wall on removal of said frangible means to open said carton.
- The advantage of the carton according to the present invention is than ir provided a substantially scaled container when in a closed condition, thereby making it suitable for the containment of food products therein so as to maintain the freshness of the food for an extended period of time compared to existing cartons. The carton is "sealed" in that the shelf life of the product is increased and this term therefore covers either hermetically sealed and non-hermetically sealed arrangements. Removal of the frangible means allows a tray element to be formed from or with the carton, thereby allowing the contents of the carton, such as food, to be located therein to make the same more easily accessible to a user. Although the carton of the present invention is of particular use with food products, the present invention is not limited to such application.
- An embodiment of the present invention is described below with reference to the accompanying figures, wherein:
-
Figure 1 is a view of a carton blank in one embodiment; -
Figures 2a-2c illustrates a front, perspective and rear views of the carton blank infigure 1 when assembled; -
Figure 3 illustrates a view of the carton when formed with the front wall of the carton open; and -
Figure 4 illustrates a view of the carton following manipulation to form a carton forming a tray clement. - Referring to
figure 1 , there is illustrated a carton blank 2 for forming a sandwich pack 4 when assembled. - The carton blank includes a
rear panel 6 which is substantially rectangular in shape. Abase panel 8 is joined torear panel 6 along fold line (shown by dotted lines) 10.Side panels base panel 8 along fold lines 16, 18. -
Web portions rear panel 6 andside panels web portion 20 is joined torear panel 6 along fold line 28,web portion 22 is joined along a first side toweb portion 20 via fold line 30 and toside panel 12 viafold line 32.Web portion 24 is joined torear panel 6 alongfold line 34,web portion 26 is joined along a first side toweb portion 24 via fold line 36 and toside panel 14 viafold line 38. -
Web portions rear panel 6, whereasweb portions side walls top corners web portions rop corners 44, 46 ofside panels notch 48, 50 is provided in each ofweb portions - A
front panel 52 is joined toside panel 14 along fold line 54. Awindow 56 is defined infront panel 52 such that the contents of the carton 2 can be viewed when the carton is formed and loaded with said contents. In order to seal thewindow 56 and to prevent the contents of the carton from falling out thereof, a suitable material can be provided over the window, such as a transparent plastics material. This transparent plastics material is typically adhered to the surround of the window during or prior to erection of the carton. - The transparent material can be provided at least partially along the
side panel 14 of the carton in addition to the front panel so that a user can view the contents of the carton from the side. In the embodiment illustrated, the fold line 54 is formed in a V shape to allow a part ofwindow 56 to be provided on side panel 11. - Frangible means in the form of
parallel perforation lines rear panel 6 and base panel 8.The perforation lines can be formed in the carton using any conventional technique, such as die cutting. The frangible means can be provided at any location on the carton walls if required (i.e. offset to the left or to the right). - A tab or
lip portion 62 is joined torear panel 6 alongfold line 64. An extension portion 66 is joined totab portion 62 alongfold line 68. - A tab or
lip portion 70 is joined toside panel 12 alongfold line 72. An extension portion 74 is joined totab portion 70 alongfold line 76. - A tab or
lip portion 78 is joined tobase panel 8 alongfold line 80. Atab portion 82 is provided at the end of perforation lines which protrudes fromtab portion 78. - In an alternative to
tab portion 82, a frangible or recessed portion can be provided along a peripheral edge offront panel 52. The recess portion or removal of the frangible portion to form the recess portion provides gripping means to allow a user to openfront panel 52 if required. - On construction of the blank 2,
web portion 22 is folded ontoside panel 12 viafold line 32 and the rear ofweb portion 20 is folded onto the rear ofweb portion 22, thereby bringingside panel 12 andrear panel 6 into abutting relationship.Web portions side panel 12 via head sealing or other adhesive as is described in more detail below.Web portion 26 is folded ontoside panel 14 viafold line 42 and the rear ofweb portion 24 is folded onto the rear ofweb portion 24, thereby bringingside panel 14 into abutting relationship withrear panel 6.Web portions side panel 14 via heat sealing or other adhesive. Thus, with the carton formed,side panels base panel 8 and torear panel 6. - The V-shaped
notches 48, 50 and the shortenedfold lines - The
web portions - The contents of the carton are loaded into the partially formed carton, shown in
figure 3 , via open end 84.Front panel 52 is then folded over the open end 84 andtab portions front panel 52 to form protruding lip portions. These lip portions provide a gripping surface by which the carton can be easily handled and carried by a user. In addition, the entirefront panel 52 is free for printing and/or design work to be located thereon without obstruction from any closure, folding or engagement portions, thereby increasing the aesthetic appeal of the product to a user. - The board from which the carton is formed is typically provided with a heat sensitive adhesive coating thereon. When heat is provided to the lip portions formed by bringing
tab portions front panel 52, the respective panel and portions are adhered together to form the closed carton as shown infigures 2a-2c . Theextension portions 74 and 68 overlap in this adhered position to provide secure and scaled engagement of the lip portion. - When a user wishes to extract the contents of the carton from the carton, they can separate the
tab portions front panel 52 and access the contents via open end 84. However, in a preferred method of opening the carton, the user typically grips atab portion 82 and breaks the frangible means alonglines tab portions base panel portions front panel 52. The remaining rear andbase panel portions fold lines 54 and 72 to form a tray element, as shown infigure 4 . In this second carton arrangement,front panel 52 andside panels base panel portions - Frangible portions can also be provided on or adjacent the lip or rab portions to allow easy opening of the carton via
front panel 52. - The carton of the present invention can be provided in any suitable shape, size and/or design and the blank can be formed from any suitable material.
- The carton is typically formed from single layer board material having at least one coating layer provided thereon. When heat is applied to the coating layer, the layer becomes adhesive and allows panels of the carton to be adhered together on application of pressure and heat thereto, thereby removing the requirement for adhesive to be separately applied to the carton as is conventionally the case.
- The carton is typically delivered to a customer in blank form, each blank is inserted into a forming machine/apparatus which automatically erects the carton and heat seals the relevant portions of the carton together. The sandwich is then located in the open end of the carton and the front panel is heat sealed to a closed position via the flange elements.
Claims (21)
- A carton for holding one or more items, said carton formed from a blank (2) and said blank (2) including two side walls (12, 14) which are triangular in shape and a rear wall (6), base wall (8) and front wall (52) which are quadrilateral in shape, the walls joined together when assembled in such a manner so as to define a closed carton having a triangular cross section, the two triangular side walls (12, 14) are each joined to opposite sides of the base wall (8) along fold lines (16, 18) and the front wall (52) is hingedly connected to at least one of the triangular side walls (12, 14), frangible means (58, 60, 82, 84) being provided along a part or whole of the rear (6) and base wall (8) to allow a part of said walls (12, 14) to be separated or removed on breaking of said frangible means (58, 60), and wherein on removal of said frangible means (58, 60, 82, 84) at least one of the triangular side walls (12, 14) adjacent a remaining portion of the rear and base wall (6, 8) is movable relative to the front wall (52) to open said carton, characterised in that, the rear wall (6) is joined to an end of the base wall (8) along a fold line (10).
- A carton according to claim 1 wherein the base, front and/or rear walls (6, 8, 52) are rectangular in shape.
- A carton according to claim 1 wherein the front wall (52) and the at least one triangular side wall (12, 14) forms a tray element or tray surface when the carton is opened and upon movement of the at least one triangular side wall (12, 14) relative to the front wall (52).
- A carton according to claim 3 wherein one or more remaining portions of the rear and/or base wall (6, 8) form one or more side walls of the tray element.
- A carton according to claim 1 wherein a plurality of frangible means (58, 60) are provided on the carton and each frangible means is independently removable or breakable with respect to the other frangible means,
- A carton according to claim 1 wherein the frangible means (58, 60) are provided longitudinally of the assembled carton.
- A carton according to claim 1 wherein the frangible means (58, 60) includes any or any combination of one or more weakened portions, perforations or cut portions.
- A carton according to claim 1 wherein the front (52) and/or at least one triangular wall (12, 14) is/are formed from or includes transparent material.
- A Carton according to claim 1 wherein the front wall (52) of the carton can be moved from a closed condition when the carton is assembled to an open condition to allow access to the contents of the carton.
- A carton according to claim 1 wherein the front wall (52) of the carton has a flange or lip portion which extends outwardly of the triangular side walls (12, 14).
- A carton according to claim 10 wherein one or more of the triangular side walls (12, 14) of the carton has a flange or lip portion (70) which engages the flange or lip portion of the front wall (52) of the carton.
- A carton according to claim 11 wherein the flange or lip portions (70) are engaged via any or any combination of adhesive, heat scaling, staples or clips.
- A carton according to claims 10 or 11 wherein the flange or lip portions (70) have frangible means on or adjacent the same to allow opening of the carton via the front wall of the carton.
- A carton according to claim 1 wherein the carton is formed from board material.
- A carton according to claim 14 wherein the board material has at least one coating provided thereon and, in the presence of heat, becomes adhesive to allow engagement of one or more walls or parts of the carton together.
- A carton according to claim 1 wherein one or more web portions are provided adjacent one or more corners of the carton when assembled.
- A carton according to claim 16 wherein each web portion include at least two sections (20, 22, 24, 26) joined together along a fold line (30, 36) and said sections are provided between two or more adjacent walls of the carton.
- A carton according to claim 1 wherein a single cavity is defined in the carton.
- A carton according to claim 1 wherein one or more walls or partition means are provided in the interior of the carton to define two or more compartments.
- A carton according to claim 1 wherein the carton is formed from a single blank (2).
- A blank (2) for forming a carton for holding one or more items, said blank including a plurality of wall panels joined together by fold lines and movable with respect to each other so that when assembled form a closed carton of having a triangular cross section, said blank (2) including two side walls (12, 14) which are triangular in shape and a rear wall (6), base wall (8) and front wall (52) which are quadrilateral in shape, the two triangular side walls (12, 14) are each joined to opposite sides of the base wall (8) along fold lines (16, 18) and the front wall (52) is hingedly connected to at least one of the triangular side walls (12, 14), frangible means (58, 60, 82, 84) being provided along a part or whole of the rear (6) and base wall (8) panel to allow a part of said walls (12, 14) to be separated or removed on breaking of said frangible means (58, 60), and wherein on removal of said frangible means (58, 60, 82, 84) at least one of the triangular side walls (12, 14) adjacent a remaining portion of the rear and base wall (6, 8) is movable relative to the front wall (52) to open said carton when formed, characterised in that the rear wall (6) is joined to an end of the base wall (8) along a fold line (10).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0417488.4A GB0417488D0 (en) | 2004-08-06 | 2004-08-06 | Carton |
PCT/GB2005/002862 WO2006013324A1 (en) | 2004-08-06 | 2005-07-19 | Carton |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1799588A1 EP1799588A1 (en) | 2007-06-27 |
EP1799588B1 true EP1799588B1 (en) | 2010-04-07 |
Family
ID=32982603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05766660A Active EP1799588B1 (en) | 2004-08-06 | 2005-07-19 | Carton |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1799588B1 (en) |
AT (1) | ATE463443T1 (en) |
DE (1) | DE602005020477D1 (en) |
GB (1) | GB0417488D0 (en) |
WO (1) | WO2006013324A1 (en) |
ZA (1) | ZA200701938B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3162723A1 (en) | 2015-10-30 | 2017-05-03 | Natsu Foods GmbH & Co. KG | Blank for producing a packaging for food and packaging for food |
DE102016101637A1 (en) | 2015-10-30 | 2017-05-04 | Natsu Foods GmbH & Co. KG | Blank for the manufacture of food packaging and food packaging |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2441586B (en) * | 2006-09-06 | 2011-04-27 | Tams Packaging Ltd | Container for a food item |
GB2471511B (en) * | 2009-07-03 | 2013-08-07 | Marks Spencer Plc | A carton having a window |
GB2476795A (en) * | 2010-01-06 | 2011-07-13 | Colpac Ltd | Sealed sandwich container |
GB2481419A (en) * | 2010-06-22 | 2011-12-28 | Colpac Ltd | A Sandwich container and blank |
FR2977242B1 (en) * | 2011-06-28 | 2014-10-24 | Smurfit Kappa France | PRISMATIC SHAPE PACKAGE WITH A REINFORCED TRIANGULAR BASIS AND CONSTITUENT FLANK |
GB2500187B (en) * | 2012-03-12 | 2014-02-12 | Roland William Page | Blanks and/or containers for food |
GB2518231A (en) * | 2013-09-16 | 2015-03-18 | Coveris Flexibles Uk Ltd | A blank for forming a carton |
GB2524799B (en) * | 2014-04-03 | 2017-01-11 | William Page Roland | Food containers |
GB2536893B (en) * | 2015-03-30 | 2017-08-09 | Coveris Flexibles Uk Ltd | A Carton with Improved Opening Mechanism |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2975954A (en) * | 1959-05-15 | 1961-03-21 | George C Sparks | Easy-opening setup box |
US3298596A (en) * | 1964-02-13 | 1967-01-17 | Waldorf Paper Prod Co | Easy opening cartons |
US3197115A (en) * | 1964-03-23 | 1965-07-27 | West Virginia Pulp & Paper Co | Ice cream carton |
US3886901A (en) * | 1974-05-10 | 1975-06-03 | Lowe S Inc | Folded cat box and filler material package |
US4432489A (en) * | 1982-06-14 | 1984-02-21 | Champion International Corporation | Pie carton |
GB2221670A (en) * | 1988-08-10 | 1990-02-14 | St Regis Packaging Ltd | Cartons having tear strips for opening |
FR2715632B1 (en) * | 1994-01-31 | 1996-04-12 | Giovanni Leon Di | Transformable item in box and tray. |
US5853120A (en) * | 1996-07-31 | 1998-12-29 | Stone Container Corporation | Tray apparatus with reinforced corner structure |
-
2004
- 2004-08-06 GB GBGB0417488.4A patent/GB0417488D0/en not_active Ceased
-
2005
- 2005-07-19 AT AT05766660T patent/ATE463443T1/en not_active IP Right Cessation
- 2005-07-19 EP EP05766660A patent/EP1799588B1/en active Active
- 2005-07-19 WO PCT/GB2005/002862 patent/WO2006013324A1/en active Application Filing
- 2005-07-19 DE DE602005020477T patent/DE602005020477D1/en active Active
-
2007
- 2007-02-13 ZA ZA200701938A patent/ZA200701938B/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3162723A1 (en) | 2015-10-30 | 2017-05-03 | Natsu Foods GmbH & Co. KG | Blank for producing a packaging for food and packaging for food |
DE102016101637A1 (en) | 2015-10-30 | 2017-05-04 | Natsu Foods GmbH & Co. KG | Blank for the manufacture of food packaging and food packaging |
DE202016106823U1 (en) | 2015-10-30 | 2018-01-15 | Natsu Foods GmbH & Co. KG | Blank for the manufacture of food packaging and food packaging |
Also Published As
Publication number | Publication date |
---|---|
EP1799588A1 (en) | 2007-06-27 |
ATE463443T1 (en) | 2010-04-15 |
WO2006013324A1 (en) | 2006-02-09 |
DE602005020477D1 (en) | 2010-05-20 |
GB0417488D0 (en) | 2004-09-08 |
ZA200701938B (en) | 2008-10-29 |
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