US20220185561A1 - Carton and carton blank - Google Patents

Carton and carton blank Download PDF

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Publication number
US20220185561A1
US20220185561A1 US17/598,809 US202017598809A US2022185561A1 US 20220185561 A1 US20220185561 A1 US 20220185561A1 US 202017598809 A US202017598809 A US 202017598809A US 2022185561 A1 US2022185561 A1 US 2022185561A1
Authority
US
United States
Prior art keywords
handle
panel
top wall
pair
fold lines
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.)
Pending
Application number
US17/598,809
Other languages
English (en)
Inventor
Bruno M. Leite
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WestRock Packaging Systems LLC
Original Assignee
WestRock Packaging Systems LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WestRock Packaging Systems LLC filed Critical WestRock Packaging Systems LLC
Priority to US17/598,809 priority Critical patent/US20220185561A1/en
Assigned to WESTROCK PACKAGING SYSTEMS, LLC reassignment WESTROCK PACKAGING SYSTEMS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEITE, Bruno M.
Publication of US20220185561A1 publication Critical patent/US20220185561A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/12—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank
    • B65D71/36—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank having a tubular shape, e.g. tubular wrappers, with end walls
    • 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
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/12—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank
    • B65D71/14—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank having a tubular shape, e.g. tubular wrappers without end walls
    • B65D71/28—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank having a tubular shape, e.g. tubular wrappers without end walls characterised by the handles
    • B65D71/30—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers the packaging elements, e.g. wrappers being formed by folding a single blank having a tubular shape, e.g. tubular wrappers without end walls characterised by the handles unitary, i.e. integral with the tubular packaging elements
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00432—Handles or suspending means
    • B65D2571/00456—Handles or suspending means integral with the wrapper
    • B65D2571/00462—Straps made by two slits in a wall
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00432—Handles or suspending means
    • B65D2571/00537—Handles or suspending means with stress relieving means
    • B65D2571/00543—Handles or suspending means with stress relieving means consisting of cut-outs, slits, or the like
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00432—Handles or suspending means
    • B65D2571/00537—Handles or suspending means with stress relieving means
    • B65D2571/00549—Handles or suspending means with stress relieving means consisting of fold lines
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00648—Elements used to form the wrapper
    • B65D2571/00654—Blanks
    • B65D2571/0066—Blanks formed from one single sheet
    • 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
    • B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
    • B65D2571/00123—Bundling wrappers or trays
    • B65D2571/00709—Shape of the formed wrapper, i.e. shape of each formed element if the wrapper is made from more than one element
    • B65D2571/00722—Shape of the formed wrapper, i.e. shape of each formed element if the wrapper is made from more than one element tubular with end walls, e.g. walls not extending on the whole end surface

Definitions

  • the present invention relates to a carton for packaging one or more articles and a blank for forming the same, more specifically, but not exclusively to a carton having a carrying handle with a structure for controlling the load forces in the carton when the carrying handle is employed.
  • the present invention seeks to overcome or at least mitigate the problems of the prior art.
  • a carton for packaging one or more articles comprises a plurality of panels for forming a tubular structure including a top wall, a first side wall and a second side wall.
  • the top wall may comprise filleted corners so as to be octagonal in shape.
  • the filleted corners define free corner edges of the top wall.
  • Each of the first and second side walls comprise at least two filleted corners so as to be at least hexagonal in shape.
  • Each free corner edge of the top wall is disposed adjacent to a filleted corner of one of the first and second side walls.
  • the carton comprises a handle structure defined in the top wall.
  • the handle structure comprises a handle strap extending longitudinally between opposed ends of the carton.
  • the handle strap is defined at least in part by first and second severance lines.
  • the handle structure comprises a pair of divergently arranged fold lines extending from each end of the first and second severance lines to an adjacent one of the free corner edges of the top wall.
  • a first one of the pair of divergently arranged fold lines comprises a lower fold resistance than the other one of the pair of divergently arranged fold lines.
  • each of the pairs of divergently arranged fold lines converge at an end of one of the first and second severance lines.
  • each of the pairs of divergently arranged fold lines terminate at a free corner edge of the top wall so as to define a web, the web being displaceable out of the plane of the top wall when the handle is in use.
  • opposed ends of the tubular structure are closed, at least in part by a top end closure flap hingedly connected to the top wall, the top end closure flap being displaceable inwardly when the handle is in use.
  • the top wall is equal in length to each of the first and second side walls.
  • a carton for packaging one or more articles comprising a plurality of panels for forming a tubular structure including a top wall, a first side wall and a second side wall.
  • the top wall may comprise at least two filleted corners so as to be at least hexagonal in shape.
  • the filleted corners define first and second free corner edges of the top wall.
  • Each of the first and second side walls comprise at least one filleted corner.
  • the first free corner edge of the top wall is disposed adjacent to the filleted corner of the first side wall and the second free corner edge of the top wall is disposed adjacent to the filleted corner of the second side wall.
  • the carton comprise a handle structure defined in the top wall, the handle structure comprise a handle strap extending longitudinally between opposed ends of the carton.
  • the handle strap is defined at least in part by first and second severance lines.
  • the handle structure comprises a first pair of divergently arranged fold lines extending from a first end of the first severance line to the first free edge of the top wall and a second pair of divergently arranged fold lines extending from a first end of the second severance line to the second free edge of the top wall.
  • a first end of the tubular structure is closed, at least in part by a top end closure flap hingedly connected to a first end of the top wall, the top end closure flap being displaceable inwardly when the handle is in use.
  • a first one of the first pair of divergently arranged fold lines comprises a lower fold resistance than the other one of the first pair of divergently arranged fold lines.
  • a first one of the second pair of divergently arranged fold lines comprises a lower fold resistance than the other one of the second pair of divergently arranged fold lines.
  • first and second pairs of divergently arranged fold lines terminate define a web, the web being displaceable out of the plane of the top wall when the handle is in use.
  • a blank for forming a carton comprising a plurality of panels for forming a tubular structure having a top wall, a first side wall and a second side wall. At least one of the plurality of panels forms a handle panel comprising at least two filleted corners. The filleted corners define first and second free corner edges of the handle panel. A further one of the plurality of panels hingedly connected to the handle panel comprises at least two filleted corners.
  • the first free corner edge of the handle panel is disposed adjacent to a first one of the filleted corners of the further one of the plurality of panels and the second free corner edge of the handle panel is disposed adjacent to a second one of the filleted corners of the further one of the plurality of panels.
  • the blank comprises a handle structure defined in the handle panel.
  • the handle structure comprises a handle strap extending longitudinally between opposed ends of the blank.
  • the handle strap is defined at least in part by a severance line.
  • the handle structure comprises a first pair of divergently arranged fold lines extending from a first end of the first severance line to the first free edge of the handle panel and a second pair of divergently arranged fold lines extending from a second end of the first severance line to the second free edge of the handle panel.
  • the blank comprises a second handle panel comprising at least two filleted corners.
  • the filleted corners define first and second free corner edges of the second handle panel.
  • Another one of the plurality of panels is hingedly connected to the second handle panel and comprises at least two filleted corners.
  • the first free corner edge of the second handle panel is disposed adjacent to a first one of the filleted corners of said another one of the plurality of panels and the second free corner edge of the second handle panel is disposed adjacent to a second one of the filleted corners of said another one of the plurality of panels.
  • the blank comprises a handle structure defined in the second handle panel.
  • the handle structure comprises a handle strap extending longitudinally between opposed ends of the blank.
  • the handle strap is defined at least in part by a second severance line.
  • the handle structure comprises a third pair of divergently arranged fold lines extending from a first end of the second severance line to the first free edge of the second handle panel and a fourth pair of divergently arranged fold lines extending from a second end of the second severance line to the second free edge of the second handle panel.
  • a feature, or combination of features, of an embodiment disclosed herein may be extracted in isolation from other features of that embodiment.
  • a feature, or combination of features, of an embodiment may be omitted from that embodiment.
  • FIG. 1 is a plan view from above of a blank for forming a carton according to a first embodiment of the invention
  • FIG. 1A is an enlarged plan view from above of a portion of the blank of FIG. 1 ;
  • FIG. 2 is a plan view from above of a blank for forming an optional insert or divider according to embodiments of the invention
  • FIG. 3 is a top view from above of a carton formed from the blank of FIG. 1 ;
  • FIG. 4 is a perspective view of the carton of FIG. 3 ;
  • FIG. 5 is a perspective view from above of the carton FIG. 3 when a carrying handle is being employed.
  • FIG. 6 is a perspective view of a corner portion of the carton of FIG. 5 in which a carrying handle is in a deployed condition.
  • FIG. 1 there is shown a plan view of a blank 10 capable of forming a carton 90 as shown in FIGS. 3 to 5 , which carton can accept an input of primary products such as, but not limited to, bottles or cans, hereinafter referred to as “articles” B.
  • the terms “carton” and “carrier” refer, for the non-limiting purpose of illustrating the various features of the invention, to a container for engaging, carrying, and/or dispensing articles, such as product containers. It is contemplated that the teachings of the invention can be applied to various product containers, which may or may not be tapered and/or cylindrical. Exemplary containers include bottles (for example metallic, glass or plastics bottles), cans (for example aluminium cans), tins, pouches, packets and the like.
  • the blank 10 is formed from a sheet of suitable substrate.
  • suitable substrate includes all manner of foldable sheet material such as paperboard, corrugated board, cardboard, plastic, combinations thereof, and the like. It should be recognized that one or other numbers of blanks may be employed, where suitable, for example, to provide the carrier structure described in more detail below.
  • the blank 10 is configured to form a carton or carrier 90 for packaging an exemplary arrangement of exemplary articles B.
  • the blank 10 can be alternatively configured to form a carrier 90 for packaging other types, number and size of article and/or for packaging articles in a different arrangement or configuration.
  • the blank 10 comprises a plurality of main panels 12 , 14 , 16 , 18 , 20 for forming a tubular structure or sleeve.
  • a first main or top panel 12 is hinged to a second main panel 14 (also referred to herein as a first side wall panel 14 ) by a fold line 13 .
  • the first side wall panel 14 is hinged to a third main panel 16 (also referred to herein as a base panel 16 ) by a fold line 15 .
  • the base panel 16 is hinged to a fourth main panel 18 (also referred to herein as a second side wall panel 18 ) by a fold line 17 .
  • the second side wall panel 18 is hinged to a fifth main panel 20 (also referred to herein as a second top panel 20 ) by a fold line 19 .
  • the first and fifth main panels 12 , 20 form a composite panel 12 / 20 .
  • the composite panel 12 / 20 forms the top panel (top wall) 12 / 20 when a handle structure H is in use as a carrying handle by a user.
  • This top wall 12 / 20 is disposed optionally adjacent to the sides of the articles B. In this orientation, the top wall 12 / 20 is not disposed substantially planar to the tops or bottoms of the articles B held within the carton 90 . In other words, the cylindrical axis of the articles B is substantially parallel with the plane of the top wall 12 / 20 of the carton 90 .
  • Either one of the second or fourth main panels 14 , 18 may form a base panel when the carton 90 is being loaded with articles B.
  • a group of articles B may be inserted into the tubular structure by sliding the group over the said one of the second or fourth main panels 14 , 18 forming the base.
  • the third main panel 16 forms the base panel 16 when the handle structure H is in use as a carrying handle by a user.
  • the third main panel 16 may also form the base panel 12 when the articles B are being dispensed from the carton 90 or when the carton 90 is at rest upon a surface such as a shelf.
  • top does not necessarily limit the carton 90 to adopting a particular orientation but serve to distinguish those panels from one another.
  • the cylindrical axis of the articles B may be orientated differently with respect to the top wall 12 / 20 of the carton 90 .
  • the cylindrical axis of the articles B be may orientated substantially perpendicularly to the plane of the top wall 12 / 20 of the carton 90 .
  • the ends of the tubular structure are closed by end closure structures having a plurality of end closure panels 22 a , 24 a , 26 a , 28 a , 30 a , 22 b , 24 b , 26 b , 28 b , 30 b .
  • a first end of the tubular structure is closed by a first group of end closure panels 22 a , 24 a , 26 a , 28 a , 30 a ; the second end of the tubular structure is closed by a second group of end closure panels 22 b , 24 b , 26 b , 28 b , 30 b.
  • a first end closure panel 22 a is hinged to the first top panel 12 by a fold line 21 a ; a second end closure panel 24 a is hinged to the first side wall panel 14 by a fold line 23 a ; a third end closure panel 26 a is hinged to the base panel 16 by a fold line 27 a ; a fourth end closure panel 28 a is hinged to the second side wall panel 18 by a fold line 29 a and a fifth end closure panel 30 a is hinged to the second top panel 20 by a fold line 31 a.
  • the first end closure panel 22 a and fifth end closure panel 30 a form a composite end closure panel 22 a / 30 a .
  • the first end closure panel 22 a and fifth end closure panel 30 a form a first minor or top end closure flap 22 a / 30 a or dust flap.
  • the third end closure panel 26 a forms a minor or lower end closure flap 26 a or dust flap.
  • the second and fourth enclosure panel 24 a , 28 a form major end flaps or side end flaps.
  • the first group of end closure panels 22 a , 24 a , 26 a , 28 a , 30 a are coupled one to the next by a web panel 32 a , 34 a , 36 a , 40 a .
  • a first web panel 32 a is hingedly connected to the first end closure panel 22 a by a hinged connection in the form of a fold line 33 a .
  • the first web panel 32 a is hingedly connected to the second end closure panel 24 a by a hinged connection in the form of a fold line 35 a .
  • a second web panel 34 a is hingedly connected to the second end closure panel 24 a by a hinged connection in the form of a fold line 37 a .
  • the second web panel 34 a is hingedly connected to the third end closure panel 26 a by a hinged connection in the form of a fold line 39 a .
  • a third web panel 36 a is hingedly connected to the third end closure panel 26 a by a hinged connection in the form of a fold line 41 a .
  • the third web panel 36 a is hingedly connected to the fourth end closure panel 28 a by a hinged connection in the form of a fold line 43 a .
  • a fourth web panel 40 a is hingedly connected to the fourth end closure panel 28 a by a hinged connection in the form of a fold line 45 a .
  • the fourth web panel 40 a is hingedly connected to the fifth end closure panel 30 a by a hinged connection in the form of a fold line 47 a.
  • a sixth end closure panel 22 b is hinged to the first top panel 12 by a fold line 21 b ; a seventh end closure panel 24 b is hinged to the first side wall panel 14 by a fold line 23 b ; an eighth end closure panel 26 b is hinged to the base panel 16 by a fold line 27 b ; a ninth end closure panel 28 b is hinged to the second side wall panel 18 by a fold line 29 b , and a tenth end closure panel 30 b is hinged to the second top panel 20 by a fold line 31 b.
  • the sixth end closure panel 22 b and tenth end closure panel 30 b form a composite end closure panel 22 b / 30 b .
  • the sixth end closure panel 22 b and tenth end closure panel 30 b form a second minor or top end closure flap 22 a / 30 a or dust flap.
  • the eighth end closure panel 26 b forms a minor or lower end closure flap 26 b or dust flap.
  • the seventh and ninth enclosure panel 24 b , 28 b form major end flaps or side end flaps.
  • the fold lines 21 a , 23 a , 27 a , 29 a , 31 a are collinear with each other, the fold lines 21 b , 23 b , 27 b , 29 b , 31 b are collinear with each other, such that first top panel 12 , first side panel 14 , base panel 16 , second side panel 18 and second top panel 20 are equal in length.
  • the second group of end closure panels 22 b , 24 b , 26 b , 28 b , 30 b are coupled one to the next by a web panel 32 b , 34 b , 36 b , 40 b .
  • a fifth web panel 32 b is hingedly connected to the sixth end closure panel 22 b by a hinged connection in the form of a fold line 33 b .
  • the fifth web panel 32 b is hingedly connected to the seventh end closure panel 24 b by a hinged connection in the form of a fold line 35 b .
  • a sixth web panel 34 b is hingedly connected to the seventh end closure panel 24 b by a hinged connection in the form of a fold line 37 b .
  • the sixth web panel 34 b is hingedly connected to the eighth end closure panel 26 b by a hinged connection in the form of a fold line 39 b .
  • a seventh web panel 36 b is hingedly connected to the eighth end closure panel 26 b by a hinged connection in the form of a fold line 41 b .
  • the seventh web panel 36 b is hingedly connected to the ninth end closure panel 28 b by a hinged connection in the form of a fold line 43 b .
  • An eighth web panel 40 b is hingedly connected to the ninth end closure panel 28 b by a hinged connection in the form of a fold line 45 b .
  • the eighth web panel 40 b is hingedly connected to the tenth end closure panel 30 b by a hinged connection in the form of a fold line 47 b.
  • the blank 10 comprises a first cutaway A 1 in the form of an aperture.
  • the first cutaway A 1 is struck in part from, or defined in part by, each of the first top panel 12 , first side panel 14 , first end closure panel 22 a , first web panel 32 a and second end closure panel 24 a.
  • the blank 10 comprises a second cutaway A 2 in the form of an aperture.
  • the second cutaway A 2 is struck in part from, or defined in part by, each of the first top panel 12 , first side panel 14 , sixth end closure panel 22 b , fifth web panel 32 b and seventh end closure panel 24 b.
  • the blank 10 comprises a third cutaway A 3 in the form of an aperture.
  • the third cutaway A 3 is struck in part from, or defined in part by, each of the first side panel 14 , base panel 16 , second end closure panel 24 a , second web panel 34 a and third end closure panel 26 a.
  • the blank 10 comprises a fourth cutaway A 4 in the form of an aperture.
  • the fourth cutaway A 4 is struck in part from, or defined in part by, each of the first side panel 14 , base panel 16 , seventh end closure panel 24 b , sixth web panel 34 b and eighth end closure panel 26 b.
  • the blank 10 comprises a fifth cutaway A 5 in the form of an aperture.
  • the fifth cutaway A 5 is struck in part from, or defined in part by, each of the base panel 16 , second side panel 18 , third end closure panel 26 a , third web panel 36 a and fourth end closure panel 28 a.
  • the blank 10 comprises a sixth cutaway A 6 in the form of an aperture.
  • the sixth cutaway A 6 is struck in part from, or defined in part by, each of the base panel 16 , second side panel 18 , eighth end closure panel 26 b , seventh web panel 36 b and ninth end closure panel 28 b.
  • the blank 10 comprises a seventh cutaway A 7 in the form of an aperture.
  • the seventh cutaway A 7 is struck in part from, or defined in part by, each of the second side panel 18 , second top panel 20 , fourth end closure panel 28 a , fourth web panel 40 a and fifth end closure panel 30 a.
  • the blank 10 comprises an eighth cutaway A 8 in the form of an aperture.
  • the eighth cutaway A 8 is struck in part from, or defined in part by, each of the second side panel 18 , second top panel 20 , ninth end closure panel 28 b , eighth web panel 40 b and tenth end closure panel 30 b.
  • the first, second, third and fourth cutaways A 1 , A 2 , A 3 , A 4 define chamfered, recessed, filleted or rounded corners of the first side panel 14 , such that the first side panel 14 is substantially octagonal in shape.
  • the fifth, sixth, seventh and eighth cutaways A 5 , A 6 , A 7 , A 8 define chamfered, recessed, filleted or rounded corners of the second side panel 18 , such that the second side panel 18 is substantially octagonal in shape.
  • the third, fourth, fifth and sixth cutaways A 3 , A 4 , A 5 , A 6 define chamfered, recessed, filleted or rounded corners of the base panel 16 , such that the base panel 16 is substantially octagonal in shape.
  • the third, fourth, fifth and sixth cutaways A 3 , A 4 , A 5 , A 6 are optional and in some embodiments may be omitted, in such embodiments the base panel 16 may be substantially rectangular and the first and second side panel 14 , 18 may be substantially hexagonal in shape
  • the first and second cutaways A 1 , A 2 define chamfered, recessed, filleted or rounded corners of the first top panel 12 .
  • the seventh and eighth cutaways A 7 , A 8 define chamfered, recessed, filleted or rounded corners of the second top panel 20 .
  • the composite top panel 12 / 20 formed from the first and second top panels 12 , 20 is substantially octagonal in shape.
  • the filleted corners define free edges of the composite top panel 12 / 20 herein after referred to as free corner edges.
  • first and second side panels 14 , 18 comprise convex filleted corners.
  • the base panel 16 and composite top panel 12 / 20 comprise concave filleted corners.
  • the blank 10 comprises a handle structure denoted generally by reference signs H 1 and H 2 .
  • the first top panel 12 comprises a first portion H 1 of the handle structure, the first portion H 1 comprises a first strap member 54 having a central region and opposed end regions with a tapered region mediate the central region and each of the end regions.
  • First strap member 54 is defined at least part by a pair of severance lines 55 a , 55 b extending substantially longitudinally (between the first and sixth end closure panels 22 a , 22 b ) of the first top panel 12 .
  • the severance lines 55 a , 55 b take the form of preformed, perforated tear lines defined by a plurality of perforations or cuts.
  • the pair of severance lines 55 a , 55 b are spaced apart by a first handle opening, the handle opening is defined in part by a first and second handle aperture A 9 , A 10 and by a first cushioning flap 52 .
  • the first cushioning flap 52 is hinged to a first or outer side of the first strap member 54 by a hinged connection in the form of a fold line 53 .
  • the first strap member 54 may comprise a reinforcing member 50 hinged to a second side of the first strap member 54 by a hinged connection in the form of a fold line 51 .
  • the second side opposes the first side.
  • the first portion H 1 of the handle structure comprises a first pair of stress diverting score or fold lines 57 a , 59 a extending from an outer end of a first one 55 a of the pair of severance lines 55 a , 55 b .
  • the first pair of stress diverting score or fold lines 57 a , 59 a are divergently arranged with respect to each other.
  • the first pair of stress diverting score or fold lines 57 a , 59 a each terminate at the first cutaway A 1 .
  • the first pair of stress diverting score or fold lines 57 a , 59 a each terminate at a first corner edge of the composite top panel 12 / 20 .
  • the first pair of stress diverting score or fold lines 57 a , 59 a extend from the edge of the first top panel 12 defined by the first cutaway A 1 to a terminal end of the first severance line 55 a .
  • the first pair of stress diverting score or fold lines 57 a , 59 a converge at the terminal end of the first severance line 55 a .
  • a first web is defined, at least in part between the first pair of stress diverting fold lines 57 a , 59 a.
  • a first stress diverting fold line 57 a may line upon a notional line extending between the terminal end of the first severance line 55 a and a notional point of intersection between the fold line 13 and the fold line 21 a.
  • a second stress diverting fold line 59 a may extend between the terminal end of the first severance line 55 a and a point of intersection between the fold line 21 a and the first cutaway A 1 .
  • the first portion H 1 of the handle structure comprises a second pair of stress diverting score or fold lines 57 b , 59 b extending from an outer end of a second one 55 b of the pair of severance lines 55 a , 55 b.
  • the second pair of stress diverting score or fold lines 57 b , 59 b are divergently arranged with respect to each other.
  • the second pair of stress diverting score or fold lines 57 b , 59 b each terminate at the second cutaway A 2 .
  • the second pair of stress diverting score or fold lines 57 b , 59 b each terminate at a second corner edge of the composite top panel 12 / 20 .
  • the second pair of stress diverting score or fold lines 57 b , 59 b extend from the edge of the first top panel 12 defined by the second cutaway A 2 to a terminal end of the second severance line 55 b .
  • the second pair of stress diverting score or fold lines 57 b , 59 b converge at the terminal end of the second severance line 55 b .
  • a second web is defined, at least in part between the second pair of stress diverting score or fold lines 57 b , 59 b.
  • a third stress diverting fold line 57 b may line upon a notional line extending between the terminal end of the second severance line 55 b and a notional point of intersection between the fold line 13 and the fold line 21 b.
  • a fourth stress diverting fold line 59 b may extend between the terminal end of the second severance line 55 b and a point of intersection between the fold line 21 b and the second cutaway A 2 .
  • the first and second webs extend diagonally from the chamfered, filleted or free corner edges of the first top panel 12 .
  • the first web is divergently arranged with respect to the second web.
  • the second top panel 20 comprises a second portion H 2 of the handle structure, the second portion H 2 comprises a second strap member 56 having a central region and opposed end regions with a tapered region mediate the central region and each of the end regions.
  • Second strap member 56 is defined at least part by a pair of severance lines 63 a , 63 b extending substantially longitudinally (between the fourth and tenth end closure panels 30 a , 30 b ) of the second top panel 20 .
  • the severance lines 63 a , 63 b take the form of preformed, perforated tear lines defined by a plurality of perforations or cuts.
  • the pair of severance lines 63 a , 63 b comprising a third severance lines 63 a and a fourth severance line 63 b , are spaced apart by a second handle opening, the handle opening is defined in part by a third and fourth handle aperture A 11 , A 12 and by a second cushioning flap 58 .
  • the second cushioning flap 58 is hinged to a first or outer side of the second strap member 56 by a hinged connection in the form of a fold line 61 .
  • the second portion H 2 of the handle structure comprises a third pair of stress diverting score or fold lines 65 a , 67 a extending from an outer end of a third severance line 63 a .
  • the third pair of stress diverting score or fold lines 65 a , 67 a are divergently arranged with respect to each other.
  • the third pair of stress diverting score or fold lines 65 a , 67 a each terminate at the seventh cutaway A 7 .
  • the third pair of stress diverting score or fold lines 65 a , 67 a each terminate at a third corner edge of the composite top panel 12 / 20 .
  • the third pair of stress diverting score or fold lines 65 a , 67 a extend from the edge of the second top panel 20 defined by the seventh cutaway A 7 to a terminal end of the third severance line 63 a .
  • the third pair of stress diverting score or fold lines 65 a , 67 a converge at the terminal end of the third severance line 63 a .
  • a third web is defined, at least in part between the third pair of stress diverting fold lines 65 a , 67 a.
  • a fifth stress diverting fold line 65 a may line upon a notional line extending between the terminal end of the third severance line 63 a and a notional point of intersection between the fold line 19 and the fold line 31 a.
  • a sixth stress diverting fold line 67 a may extend between the terminal end of the third severance line 63 a and a point of intersection between the fold line 31 a and the seventh cutaway A 7 .
  • the second portion H 2 of the handle structure comprises a fourth pair of stress diverting score or fold lines 65 b , 67 b extending from an outer end of the fourth severance line 63 b.
  • the fourth pair of stress diverting score or fold lines 65 b , 67 b are divergently arranged with respect to each other.
  • the fourth pair of stress diverting score or fold lines 65 b , 67 b each terminate at the eighth cutaway A 8 .
  • the fourth pair of stress diverting score or fold lines 65 b , 67 b each terminate at a fourth corner edge of the composite top panel 12 / 20 .
  • the fourth pair of stress diverting score or fold lines 65 b , 67 b extend from the edge of the second top panel 20 defined by the eighth cutaway A 8 to a terminal end of the fourth severance line 63 b , the fourth pair of stress diverting score or fold lines 65 b , 67 b converge at the terminal end of the fourth severance line 63 b .
  • a fourth web is defined, at least in part between the fourth pair of stress diverting score or fold lines 65 b , 67 b.
  • a seventh stress diverting fold lines 65 b may line upon a notional line extending between the terminal end of the fourth severance line 63 b and a notional point of intersection between the fold line 19 and the fold line 31 b , see FIG. 1A .
  • An eighth stress diverting fold lines 67 b may extend between the terminal end of the fourth severance line 63 b and a point of intersection between the fold line 31 b and the eighth cutaway A 8 .
  • the third and fourth webs extend diagonally from the chamfered, filleted or free corner edges of the second top panel 12 .
  • the third web is divergently arranged with respect to the fourth web.
  • the first web is divergently arranged with respect to the third web.
  • the second web is divergently arranged with respect to the fourth web.
  • the seventh and eighth stress diverting fold lines 65 b , 67 b are shown in detail, the first, second, third, fourth, fifth and sixth stress diverting fold lines 57 a , 59 a , 57 b , 59 b , 65 a , 67 a are similarly arranged.
  • the seventh and eighth stress diverting fold lines 65 b , 67 b each comprise at least one cut line or perforation C 3 , C 4 .
  • the seventh stress diverting fold line 65 b comprises three cut lines C 3 each of the cut lines C 3 is disposed collinearly with the preformed fold line 65 b .
  • the eighth stress diverting fold line 67 b comprises two cut lines C 4 each of the cut lines C 4 is disposed collinearly with the preformed fold line 67 b .
  • the cut lines C 3 , C 4 may be considered to interrupt the respective one of the seventh and eighth stress diverting fold lines 65 b , 67 b.
  • the cut lines C 3 , C 4 may weaken or reduce the fold resistance of the seventh and eighth stress diverting fold lines 65 b , 67 b making the fold lines 65 b , 67 b easier to fold when the carrying handle is in use.
  • the cut lines C 3 , C 4 can be considered to be fold resistance reduction devices.
  • the seventh stress diverting fold line 65 b comprises a greater number of cut lines than the eighth stress diverting fold line 67 b . In this way the fold resistance of the seventh stress diverting fold line 65 b may be less than that of the eighth stress diverting fold line 67 b.
  • the reduced fold resistance of the seventh stress diverting fold line 65 b compared to the eighth stress diverting fold line 67 b may lead the seventh stress diverting fold line 65 b to fold prior to or in advance of the eighth stress diverting fold line 67 b.
  • This preferential sequence of folding defines that the first, third, fifth and seventh stress diverting fold line 57 a , 57 b , 65 a , 65 b take an elevated position with respect to the second, fourth, sixth or eighth stress diverting fold line 59 a , 59 b , 67 a , 67 b , best shown in FIG. 6 .
  • first, third, fifth and seventh stress diverting fold line 57 a , 57 b , 65 a , 65 b may be employ a fold resistance reduction device or structure such that they are more readily folded than the second, fourth, sixth or eighth stress diverting fold line 59 a , 59 b , 67 a , 67 b , for example the cut lines may be replaced with one or more cutaways, apertures, slots or slits, half depth cuts.
  • the blank 10 comprises a first relief structure R 1 and a second relief structure R 2 .
  • the first relief structure R 1 comprises a plurality of score lines or predefined fold lines.
  • the fold lines are defined in the first top panel 12 .
  • the first relief structure R 1 comprises a first linear fold line 70 , which extends at a proximal end from the first handle opening transversely across a portion of the first top panel 12 towards the fold line 13 .
  • a pair of divergently arranged fold lines 72 , 74 extend from a distal end of the first linear fold line 70 to intersect with the fold line 13 .
  • the pair of divergently arranged fold lines 72 , 74 define, in part, a first top panel portion 12 a therebetween.
  • the second relief structure R 2 comprises a plurality of score lines or predefined fold lines.
  • the fold lines are defined in the second top panel 20 .
  • the second relief structure R 2 comprises a first linear fold line 70 , which extends at a proximal end from the second handle opening transversely across a portion of the second top panel 20 towards the fold line 19 .
  • a pair of divergently arranged fold lines 72 , 74 extend from a distal end of the first linear fold line 70 to intersect with the fold line 19 .
  • the pair of divergently arranged fold lines 72 , 74 define, in part, a second top panel portion 20 a therebetween.
  • the first and second relief structures R 2 may be located substantially centrally in the respective one of the first and second top panels 12 , 20 , that is to say, substantially half way between the first and sixth or fifth and tenth end closure panels 22 a , 22 b ; 30 a , 30 b.
  • a second blank 110 may be provided to serve as an insert or buffer between the first and second tiers of articles B.
  • the second blank 110 may comprise a main panel 112 having a substantially rectangular form.
  • the main panel 112 may comprise chamfered or filleted corners similar to those of the first and second side panel 14 , 18 .
  • the main panel 112 may comprise a pair of recesses C 1 , C 2 on opposing side edges. One side edges of main panel 112 is disposed adjacent to the composite top panel 12 / 20 .
  • the carton 90 can be formed by a series of sequential folding operations 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 below and may be altered according to particular manufacturing requirements.
  • Glue G or other adhesive treatment is applied to the reinforcing member 50 .
  • glue or other adhesive treatment is applied to a portion of the first strap member 54 .
  • the reinforcing member 50 is folded about fold line 51 to be brought into face contacting relationship with the first strap member 54 .
  • the reinforcing member 50 is secured to the first strap member 54 .
  • the blank 10 is then folded about the fold line 15 such that the first top panel 12 is brought into face to face relationship with a portion of the second side panel 18 and a portion of the base panel 16 .
  • the first side panel 14 is brought into face to face relationship with the base panel 16 .
  • Glue G or other adhesive treatment is applied to the first top panel 12 in particular to the first strap member 54 and regions of the first top panel which overlap with the second top panel 20 when the second top panel 20 is folded about fold line 19 into face to face relationship with the first top panel 12 .
  • glue or other adhesive treatment is applied to the second top panel 20 in particular the second strap member 56 .
  • Glue G or other adhesive treatment is applied to regions of the first end closure panel 22 a and the sixth end closure panel 22 b.
  • the second top panel 20 is folded about fold line 19 into face contacting relationship with the first top panel 12 .
  • the second top panel 20 is secured to the first top panel 12 .
  • the fifth end closure panel 30 a is brought into overlapping relationship with the first end closure panel 22 a
  • the tenth end closure panel 30 b is brought into overlapping relationship with the sixth end closure panel 22 b.
  • the fifth end closure panel 30 a is secured to the first end closure panel 22 a .
  • the tenth end closure panel 30 b is secured to the sixth end closure panel 22 b.
  • This flat collapsed tubular structure is suitable for shipping or distribution to a convertor plant.
  • the flat collapsed tubular structure can be erected into a carton by forming a tubular structure, engaging an adjacent pair of the plurality of main panels 12 , 14 , 16 , 18 , 20 and orientating an adjacent pair of the plurality of main panels 12 , 14 , 16 , 18 , 20 so as to be substantially perpendicular to each other.
  • the tubular structure can then be loaded with articles B by inserting the articles B through one or both of the open ends of the tubular structure.
  • the insert 110 may be placed between two tiers of articles B.
  • the ends of the tubular structure are closed by folding the end closure panels 22 a , 24 a , 26 a , 28 a , 30 a , 22 b , 24 b , 26 b , 28 b , 30 b to be substantially perpendicular to the one of the plurality of main panels 12 , 14 , 16 , 18 , 20 to which they are hinged.
  • the first and fifth end closure panels 22 a , 30 a are folded to be substantially perpendicular to the top wall 12 / 20 formed by the first and second top panel 12 , 20 .
  • the third end closure panel 26 a is folded to be substantially perpendicular to the base panel 16 .
  • the fourth end closure panel 28 a is folded to be substantially perpendicular to the second side wall panel 18 such that it is in face contacting relationship with the first and third end closure panels 22 a , 26 a .
  • the fourth end closure panel 28 a may be secured to the first and third end closure panels 22 a , 26 a by adhesive or other suitable treatment.
  • the second end closure panel 24 a is folded to be substantially perpendicular to the first side wall panel 14 and is secured to the fourth end closure panel 28 a , and may be secured to the first and third end closure panels 22 a , 26 a , by adhesive or other suitable treatment.
  • the second group of end closure panels 22 b , 24 b , 26 b , 28 b , 30 b is constructed in substantially the same manner to that of the first group of end closure panels 22 a , 24 a , 26 a , 28 a , 30 a previously described.
  • FIGS. 5 and 6 illustrate the handle structure of the carton 90 in use.
  • FIG. 4 illustrates the handle structure in a stowed or undeployed position.
  • FIGS. 5 and 6 illustrate the handle structure in a deployed condition.
  • the top wall 12 / 20 deforms.
  • the webs are fold about each of the pair of fold lines 57 a / 59 a , 57 b / 59 b , 65 a / 67 a , 65 b / 67 b partially defining them.
  • the fold lines with the lower fold resistance, fold lines 57 a , 57 b , 65 a , 65 b adopt a higher elevation than the fold lines 59 a , 59 b , 67 a , 67 b with the higher fold resistance, best shown in FIG. 6 .
  • the webs and/or the pair of fold lines 57 a / 59 a , 57 b / 59 b , 65 a / 67 a , 65 b / 67 b partially defining them may direct load forces in the top wall 12 / 20 and carrying handle 54 / 56 into the corners of the carton 90 .
  • the webs and/or the pair of fold lines 57 a / 59 a , 57 b / 59 b , 65 a / 67 a , 65 b / 67 b may also control deformation of the carton 90 so as to tighten the carton 90 onto the group of articles B disposed inside. In this way the articles may serve as a brace, load forces may be transferred onto the brace.
  • the top end closure flaps 22 a / 30 a , 22 b / 30 b may be displaced inwardly, into a void between the carton 90 and the endmost articles in the upper most row of articles B. This inward displacement may allow the carrying handle to be displaced outwardly to create space or clearance between the carrying handle 54 / 56 and the top wall 12 / 20 of the carton 90 .
  • the inward displacement of the top end closure flaps 22 a / 30 a , 22 b / 30 b may be facilitated by the displacement of the webs.
  • the fold lines 59 a , 59 b , 67 a , 67 b with the higher fold resistance may be considered to move inwardly from each end of the carton 90 towards the respective one of fold lines 57 a , 57 b , 65 a , 65 b with the lower fold resistance with which they are convergently arranged.
  • the fold lines 59 a , 59 b , 67 a , 67 b may move inwardly so as to be disposed below a respective one of the fold lines 57 a , 57 b , 65 a , 65 b.
  • first top panel 12 and the second top panel 20 may deform adopting a nonplanar condition.
  • the first and second relief structures R 1 , R 2 may control the deformation.
  • the first and second relief structures R 1 , R 2 may further improve transfer of load forces onto the articles disposed within the carton 90 .
  • the size and shape of the panels and apertures may be adjusted to accommodate articles of differing size or shape.
  • the top wall of the carton 90 may in alternative embodiments be formed by a single top panel which extends between the first and second side wall panels 14 , 18 when in a set-up condition.
  • a glue flap may be provided for securing a pair of adjacent main panels to one another.
  • the first top panel 12 and/or the second top panel 20 may extend between the first and second side wall panels 14 , 18 .
  • the terms “hinged connection” and “fold line” refer to all manner of lines that define hinge features of the blank, facilitate folding portions of the blank with respect to one another, or otherwise indicate optimal panel folding locations for the blank.
  • a fold line is typically a scored line, an embossed line, or a debossed line. Any reference to “hinged connection” or “fold line” should not be construed as necessarily referring to a single fold line only; indeed it is envisaged that a hinged connection can be formed from any one or more of the following: a short slit, a frangible line or a fold line without departing from the scope of the invention.
  • severed line refers to all manner of lines that facilitate separating portions of the substrate from one another, or that indicate optimal separation locations. Severance lines may be frangible or otherwise weakened lines, tear lines, cut lines, or slits.
  • hinged connection, severance lines and fold lines can each include elements that are formed in the substrate of the blank including perforations, a line of perforations, a line of short slits, a line of half-cuts, a single half-cut, a cut line, an interrupted cut line, slits, scores, any combination thereof, and the like.
  • the elements can be dimensioned and arranged to provide the desired functionality.
  • a line of perforations can be dimensioned or designed with degrees of weakness to define a fold line and/or a severance line.
  • the line of perforations can be designed to facilitate folding and resist breaking, to facilitate folding and facilitate breaking with more effort, or to facilitate breaking with little effort.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Packages (AREA)
US17/598,809 2019-03-27 2020-03-23 Carton and carton blank Pending US20220185561A1 (en)

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US201962824842P 2019-03-27 2019-03-27
US17/598,809 US20220185561A1 (en) 2019-03-27 2020-03-23 Carton and carton blank
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BR112021019331A2 (pt) 2021-12-07
WO2020198105A1 (en) 2020-10-01

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