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WO1998015460A1 - Contenant sous forme de carton - Google Patents

Contenant sous forme de carton Download PDF

Info

Publication number
WO1998015460A1
WO1998015460A1 PCT/US1997/018135 US9718135W WO9815460A1 WO 1998015460 A1 WO1998015460 A1 WO 1998015460A1 US 9718135 W US9718135 W US 9718135W WO 9815460 A1 WO9815460 A1 WO 9815460A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
flap
planar member
blank
side wall
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.)
Ceased
Application number
PCT/US1997/018135
Other languages
English (en)
Inventor
Trevor Mark Barnes
Juanita Day
Patricia Swan
Geoffrey Kohlberg
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.)
Nampak Products Ltd
Original Assignee
Nampak Products Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nampak Products Ltd filed Critical Nampak Products Ltd
Priority to AU47491/97A priority Critical patent/AU4749197A/en
Publication of WO1998015460A1 publication Critical patent/WO1998015460A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/244—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the outside of the container body
    • B65D5/245—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the outside of the container body the gussets folds comprising more than two gusset panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/20—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/2038—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape
    • B65D5/2047—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form at least two opposed folded-up portions having a non-rectangular shape trapezoidal, e.g. to form a body with diverging side walls

Definitions

  • THIS INVENTION relates to a container. More particularly, the invention relates to a container blank and to a container formed from the container blank.
  • a container blank which includes a planar member; a floor portion defined in the planar member; a pair of side wall portions defined in the planar member on opposed sides of the floor portion; a pair of end wall portions defined in the planar member at opposed ends of the floor portion; and a plurality of flap portions defined in the planar member, a flap portion being arranged at, and joining, adjacent side edges of the side wall portions and end wall portions, each flap portion being formed as a continuation of its associated side wall portion and its associated end wall portion such that, when the planar member is erected to form a container, a flap arrangement is formed at each corner of the container, each flap arrangement comprising two flaps, one of which bears against the associated side wall portion and one of which bears against the associated end wall portion.
  • T h e planar member may be of a cellulosic material, more particularly a corrugated board material.
  • the corrugated board material is a double-layered corrugated board.
  • the corrugated board may comprise a first, outer layer and a second, inner layer sandwiching fluting therebetween, an outer surface of the inner layer carrying a barrier layer which inhibits penetration of moisture into the corrugated board.
  • Both the outer layer and the inner layer may be of kraft paper.
  • the barrier layer in turn, may have a coating of a release agent applied thereto to facilitate removal of a container, in use, from its contents .
  • the barrier layer may further serve to inhibit absorption of the release agent into the inner kraft layer.
  • the floor portion may be substantially rectangular, including square, in outline, the floor portion being defined in the planar member by zones of weakness which bound the floor portion, and the zones of weakness further serving to demarcate the side wall portions and the end wall portions from the floor portion.
  • the zones of weakness may be lines of reduced thickness formed in the planar member.
  • each flap portion may be demarcated from its associated side wall portion and end wall portion via a zone of weakness formed in the planar member.
  • each zone of weakness may be in the form of a line of reduced thickness formed in the planar member.
  • the flap arrangement of each flap portion when the p l anar member is in its unerected configuration, may be substantially heart-shaped and may be bisected by a further line of weakness in the form of a line of reduced thickness extending from a corner of the floor portion to a free edge of the planar member to define the two flaps.
  • Each flap may be joined to its associated wall portion, be it the side wall portion or the end wall portion, via a web, each web forming part of the flap arrangement .
  • the flap arrangement may be such that, when a container is erected from the blank, the web is re-entrantly folded so that the associated flap overlies the web to sandwich the web between the wall portion and the associated flap.
  • the arrangement is such that the flap, in use, bears against an outer surface of its associated wall portion via the web.
  • a container erected from the blank may have its walls angled inwardly.
  • each web may be substantially triangular and may be demarcated by two lines of weakness in the form of lines of reduced thickness radiating outwardly from said corner of the floor portion to a free edge of the planar member.
  • the invention extends also to a container which includes a container blank, as described above, in its erected configuration; and a securing means for securing each flap to its associated wall portion.
  • Each securing means may comprise a fastener such as a staple or it may be an adhesive.
  • Walls defined by wall portions of the blank may be angled inwardly so that an access opening, bounded by free edges of the walls, defines an area less than that of the floor portion.
  • Each flap arrangement of the flap portion may serve to seal a junction between adjacent edges of the side walls and end walls to inhibit the escape of a contents of the container through such junction.
  • the invention extends still further to a container assembly which includes a container as described above; and a lid mountable on the container.
  • the lid may be of a cellulosic material, preferably a double-layered corrugated board material.
  • the lid may have a crown portion which is bounded by a downwardly depending skirt portion formed as a one-piece construction.
  • the crown portion of the lid may be dimensionally substantially the same as the floor portion of the planar member of the container blank.
  • the skirt portion of the lid may depend substantially vertically from the crown portion, the skirt portion being dimensioned such that a free edge of the skirt portion is arranged proximate a bottom of the container when the lid is mounted on the container.
  • Figure 1 shows a plan view of a container blank in accordance with one embodiment of the invention
  • Figure 2 shows a three dimensional view of a container, also in accordance with the invention.
  • Figure 3 shows a three dimensional view of a part of the container, partially erected
  • Figure 4 shows a plan view of a container blank in accordance with another embodiment of the invention.
  • Figure 5 shows a plan view of a container blank in accordance with yet a further embodiment of the invention.
  • Figure 6 shows a three-dimensional view of a container assembly in accordance with the invention.
  • reference numeral 10 generally designates a container blank in accordance with the invention.
  • the container blank 10 comprises a planar member 12 of a double-layered cardboard material.
  • a rectangular floor portion 14 is substantially centrally defined in the planar member 12.
  • the floor portion 14 is defined in the planar member 12 via a pair of opposed longitudinally extending lines of reduced thickness or fold lines 16 and a pair of opposed transversely extending lines of reduced thickness or fold lines 18.
  • the fold lines 16 further serve to demarcate a pair of opposed side wall portions or side walls 20 with the fold lines 18 demarcating a pair of opposed end walls portions or end walls 22.
  • the floor portion 14 is bounded by the side walls 20 and the end walls 22.
  • a first side edge 20.1 of each side wall 20 is joined to an associated side edge 22.1 of the adjacent end wall 22 via a flap portion 24.
  • a second side edge 20.2 of each side wall 20 is joined to an associated side edge 22.2 of the adjacent end wall 22 via one of the flap portions 24.
  • flap portions 24 are formed as extensions of their associated side walls 20 and end walls 22, the flap portions 24 being formed integrally with the side walls 20, end walls 22 and floor portion 14 to form a one- piece construction.
  • each flap portion 24 is defined in the planar member 12 via the edges 20.1 and 22.1 or 20.2 and 22.2, as the case may be, the edges 20.1, 20.2, 22.1 and 22.2 being defined in the planar member 12 via zones of weakness or fold lines formed in the planar member 12.
  • Each flap portion 24 comprises a flap arrangement 26.
  • the flap arrangement 26 defines a pair of flaps 28 and 30 demarcated by a bisecting line of weakness or fold line 32 extending from the associated corner 14.1 of the floor portion 14 to a free edge 12.1 of the planar member 12.
  • each flap portion 24 is connected to its associated side wall 20 via a web 34 and to its associated end wall 22 via a web 36.
  • each web 34 is demarcated by the fold line 20.1 or 20.2, as the case may be, with the other side of the web 34 being demarcated by a further line of reduced thickness or fold line 38.
  • one side of the web 36 is demarcated by the fold line 22.1 or 22.2, as the case may be, with the other side of the web 36 being demarcated by a fold line 40.
  • the lines 20.1 or 20.2 and 38 radiate outwardly from each corner 14.1 of the floor portion 14 to define a substantially triangular web 34.
  • Each web 36 is of a similar configuration being demarcated by the fold line 22.1 or 22.2 and the fold line 40 which radiate outwardly from the corners 14.1 of the floor portion 14.
  • the container blank 10 is made from a double layered corrugated board material.
  • a first layer of the planar member 12, which forms an outer layer of the container, is of a kraft paper.
  • An opposed layer of the planar member 12, which forms an inner layer of a container formed from the container blank 10, is also of a kraft paper.
  • the inner layer is coated with a barrier layer.
  • the barrier layer comprises a clay coating which serves to improve the moisture tightness of the inner layer.
  • the clay coating in turn, is covered by a coating of a release agent such as a silicone material.
  • the release agent serves to allow the removal of the container from the contents of the container.
  • the clay coating serves to inhibit the absorption of the release agent by the corrugated board material. If desired, the clay coating and the release agent could be carried on a carrier or liner which, in turn, is laminated to the inner layer of the blank 10.
  • reference numeral 50 designates a container also in accordance with the invention, erected from the container blank 10.
  • like reference numerals refer to like parts, unless otherwise specified.
  • a trapezoidal container or tray is formed with inwardly tapering sides to form an access opening 52 which defines an area less than that of the surface area of the floor portion 14.
  • the flaps 28 and 30 of the flap arrangement 26 are folded about the fold lines 38 and 40, respectively, to bear against the outer surfaces of the associated side walls 20 and 22, respectively.
  • the flap portion 24 is folded in such a manner that the flap 28 overlies its associated web 34 and bears against an outer side of the side wall 20 sandwiching the web 34.
  • the flap 40 overlies the web 36 and bears against the outer side of the end wall 22 sandwiching the web 36.
  • the flaps 28 and 40 perform a gusset-like function strengthening corners of the container 50 and improving the moisture-tightness of junctions of the side walls 20 and end walls 22.
  • FIGS. 4 and 5 of the drawings two further embodiments of the container blank are illustrated.
  • like reference numerals refer to like parts, unless otherwise specified.
  • the container blanks 10 illustrated in Figures 4 and 5 of the drawings are intended for use to form containers of different capacities and, accordingly, different heights.
  • the side walls and end walls are so dimensioned such that, when a container 50 is erected from such a container blank, free edges of the flap portions still lie in register with free edges of the side walls 20 and end walls 22 to inhibit the escape of the contents of the container 50 from the interior of the container.
  • the container 50 is intended for transporting high viscosity products such as bitumen.
  • the container 50 is effectively peeled from the contents .
  • the container assembly illustrated in Figure 6 of the drawings and designated generally by the reference numeral 60 is provided.
  • the container assembly 60 comprises the container 50 as described above together with a lid 62.
  • the lid 62 has a crown portion 64 with a downwardly depending skirt portion 66.
  • the lid is formed in a conventional manner from a double-layered corrugated board material and is a so-called telescoping-type lid which fits over the container 50.
  • the crown portion 64 define substantially the same surface area as the floor portion 14 of the container 50.
  • the skirt portion 66 which bounds the crown portion 64, depends substantially vertically from the crown portion 64.
  • the skirt portion 66 has a height dimension H which is substantially the same as the vertical height dimension h (and not the angled height dimension) of the side walls 20 and end walls 22 of the container 50 such that a free end 68 of the skirt portion 66 lies substantially in register with a bottom 54 of the container when the lid 60 is placed on the container. With this configuration, bulging of the container 50 containing the bitumen is, to a large extent, controlled .
  • the trapezoidal shape of the container 50 and the structure of the flap portions 24 improve the functionality of the container 50.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

Une ébauche de carton comprend une partie fond (14) définie dans un élément plan. Une paire de parties parois latérales ((20, 20) est définie des côtés opposés de la partie fond (14). Une paire de parties parois d'extrémité (22, 22) est définie aux extrémités opposées de la partie fond (14). Une pluralité de parties rabats est définie dans l'élément plan, une partie rabat étant située au niveau des bords latéraux contigus des parties parois latérales (20, 20) et des parties parois d'extrémité (22, 22) et réunissant lesdites parties, chaque partie rabat constituant la continuation de sa partie paroi latérale associée (20, 20) et de sa partie paroi d'extrémité associée (22, 22), de sorte que, quand l'élément plan est placé verticalement afin de créer un contenant, un ensemble rabat (24) est créé à chaque coin du contenant, chaque ensemble rabat (24) comprenant deux rabats (28, 30), dont l'un (28) s'appuie contre la partie paroi latérale associée (20, 20) et dont l'autre (30) s'appuie contre la partie paroi d'extrémité associée (22, 22).
PCT/US1997/018135 1996-10-10 1997-10-06 Contenant sous forme de carton Ceased WO1998015460A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47491/97A AU4749197A (en) 1996-10-10 1997-10-06 A container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA968560 1996-10-10
ZA96/8560 1996-10-10

Publications (1)

Publication Number Publication Date
WO1998015460A1 true WO1998015460A1 (fr) 1998-04-16

Family

ID=25585945

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/018135 Ceased WO1998015460A1 (fr) 1996-10-10 1997-10-06 Contenant sous forme de carton

Country Status (3)

Country Link
AU (1) AU4749197A (fr)
TW (1) TW326432B (fr)
WO (1) WO1998015460A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016213A3 (fr) * 2000-08-22 2002-06-27 Mead Corp Plateau et decoupe
DE20305912U1 (de) 2003-04-11 2003-06-05 Mayr-Melnhof Karton Ag, Wien Schalenartiges Behältnis und Faltschachtel
CN102963035A (zh) * 2012-11-01 2013-03-13 李平 一种小口广底方盒的折叠方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170991A (en) * 1875-12-14 Stephen b
US927538A (en) * 1908-04-20 1909-07-13 American Can Co Folded-corner can or vessel.
US1140741A (en) * 1914-12-03 1915-05-25 William Grunow Jr Folding box.
US2120902A (en) * 1935-10-14 1938-06-14 Humoco Corp Method of and means for making containers
US3423007A (en) * 1965-10-04 1969-01-21 Od W Christensson Package
US3476304A (en) * 1968-02-26 1969-11-04 American Can Co Foldable carton and blank with pleated corner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170991A (en) * 1875-12-14 Stephen b
US927538A (en) * 1908-04-20 1909-07-13 American Can Co Folded-corner can or vessel.
US1140741A (en) * 1914-12-03 1915-05-25 William Grunow Jr Folding box.
US2120902A (en) * 1935-10-14 1938-06-14 Humoco Corp Method of and means for making containers
US3423007A (en) * 1965-10-04 1969-01-21 Od W Christensson Package
US3476304A (en) * 1968-02-26 1969-11-04 American Can Co Foldable carton and blank with pleated corner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016213A3 (fr) * 2000-08-22 2002-06-27 Mead Corp Plateau et decoupe
US7216797B2 (en) 2000-08-22 2007-05-15 Meadwestvaco Packaging Systems, Llc Tray container and blank
DE20305912U1 (de) 2003-04-11 2003-06-05 Mayr-Melnhof Karton Ag, Wien Schalenartiges Behältnis und Faltschachtel
CN102963035A (zh) * 2012-11-01 2013-03-13 李平 一种小口广底方盒的折叠方法

Also Published As

Publication number Publication date
TW326432B (en) 1998-02-11
AU4749197A (en) 1998-05-05

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