EP0949151A2 - Rohrförmige Kartonverpackung sowie Verfahren und Vorrichtung zur Herstellung der Verpackung - Google Patents

Rohrförmige Kartonverpackung sowie Verfahren und Vorrichtung zur Herstellung der Verpackung Download PDF

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Publication number
EP0949151A2
EP0949151A2 EP99302458A EP99302458A EP0949151A2 EP 0949151 A2 EP0949151 A2 EP 0949151A2 EP 99302458 A EP99302458 A EP 99302458A EP 99302458 A EP99302458 A EP 99302458A EP 0949151 A2 EP0949151 A2 EP 0949151A2
Authority
EP
European Patent Office
Prior art keywords
carton
blank
panel
tubular
length
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.)
Withdrawn
Application number
EP99302458A
Other languages
English (en)
French (fr)
Other versions
EP0949151A3 (de
Inventor
Christopher Hallam
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.)
Concept Packaging Ltd
Original Assignee
Concept Packaging 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 Concept Packaging Ltd filed Critical Concept Packaging Ltd
Publication of EP0949151A2 publication Critical patent/EP0949151A2/de
Publication of EP0949151A3 publication Critical patent/EP0949151A3/de
Withdrawn legal-status Critical Current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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F7/00—Processes not otherwise provided for
    • B31F7/004—Making tubes

Definitions

  • the present invention relates to cartons, methods of constructing cartons and to blanks for cartons.
  • the present invention also relates to apparatus for manufacturing cartons from carton blanks.
  • a tubular carton comprising at least two layers, characterised in that the carton wall is of substantially even thickness along the length thereof.
  • the carton wall of the tubular carton comprises a first side wall of a first length having a plurality of inwardly directed tabs along a length thereof.
  • a second side wall of a second length within which second wall the first wall is substantially located, whereby the perimeter length of the carton is substantially less than the aggregate of the first and second lengths.
  • the perimeter length is approximately the first length.
  • a third side wall is provided about the second side wall.
  • the third side wall comprises a turned up marginal flange and the second side wall comprises a recess substantially corresponding to the turned up marginal flange.
  • the carton further comprises support means comprising a plurality of tabs capable of being inwardly directed (relative to the first panel) to form a support.
  • the tabs comprise generally triangular shapes. More suitably, the tabs comprise shapes corresponding to the carton shape (in cross-section).
  • the tabs may form the support for an inserted base member, or may themselves comprise the base member.
  • At least one of the tabs is attached, typically by gluing to another tab.
  • the marginal region for turning up can be turned up to provide a double thickness.
  • the ends of the turned up marginal region are inclined.
  • the first and second panels are dimensioned whereby the ends thereof when formed into a carton are not aligned.
  • the tubular carton comprises an outer third panel including a turned up marginal region for providing a tube end, and the second panel includes a recess substantially corresponding to the turned up marginal region.
  • the carton comprises an insert supported by the support means.
  • a further insert may be supported by the support means, whereby the support means is sandwiched between the insert and the further insert.
  • the first, second and (if present) third panels are dimensioned whereby the ends thereof overlap.
  • this provides a more pleasing shape avoiding distorting effects in prior art constructions.
  • the carton is constructed from a one-piece blank.
  • the first and second panels are formed from a blank and the third panel is formed from a separate blank.
  • the carton of the first aspect of the invention is formed from a carton blank comprising a first panel with an edge including a turned up marginal flange and a second panel connected to the first panel, which second panel comprises a recess substantially corresponding to the turned up marginal flange.
  • This carton is easy to roll around a mandrel into an even shape with a well defined end.
  • the turned up flange provides the end without a raw edge, whilst the recess on the second panel ensures that the carton can be wound from the blank without undue difficulty.
  • the blank is of substantially even thickness along its length despite the turned up flange; the corresponding recess compensating for the extra thickness of the turned up flange.
  • the turned up flange is a double thickness layer.
  • the tubular carton comprises a third panel of a first length having a plurality of inwardly directed tabs along a length thereof and the second panel is of a second length within which second wall the first wall is substantially located, whereby the perimeter length of the carton is substantially less than the aggregate of the first and second lengths.
  • the perimeter length is approximately the first length.
  • the tubular carton comprises an outer panel including a turned up marginal region for providing a tube end, an intermediate panel including a recess substantially corresponding to the turned up marginal region and an inner panel including means for providing support for an insert.
  • the carton comprises an insert supported by the support means.
  • a further insert may be supported by the support means, whereby the support means is sandwiched between the insert and the further insert.
  • the support means comprises a plurality of tabs inwardly directed (relative to the first panel) to form a support for an insert.
  • the tabs comprise generally triangular shapes.
  • the tabs correspond to the intended shape of the carton (in cross-section).
  • the tabs are provided along the majority of the internal diameter of the carton.
  • the tabs are provided along substantially the entire internal diameter of the carton.
  • the tabs are adjacent one another.
  • the tabs are joined by a crease line to the main area of the third panel.
  • the first, second and (if present) third panels are dimensioned whereby the ends thereof overlap. By not aligning the ends, surprisingly it has been found that this provided a more pleasing shape.
  • the carton is constructed from a one-piece blank.
  • the first and second panels are formed from a blank and the third panel is formed from a separate blank.
  • a blank or blanks for a tubular carton comprising a first panel including a marginal region for turning up, a second panel including a recess substantially corresponding to the marginal region for turning up and a third panel including means for providing support for an insert, whereby the first, second and third panels are suitable to be formed with the second panel between the first and third panels thereby to form a tubular carton.
  • Such an arrangement can conveniently be formed into a carton of even thickness which makes it easier to manufacture.
  • the blank is of a one piece construction. This is convenient for forming cartons on a mandrel.
  • the uniform thickness is particularly advantageous because otherwise when wound (in a convolute manner) on a mandrel, the carton would tend towards a conical shape and the ends thereof would "creep" along the mandrel.
  • the support means comprises a plurality of tabs capable of being inwardly directed (relative to the first panel) to form a support for an insert.
  • the tabs comprise generally triangular shapes.
  • the tabs are provided along the majority of the length of the third panel.
  • the tabs are provided along substantially the entire length of the third panel.
  • the tabs are adjacent one another.
  • the tabs are joined by a crease line to the main area of the third panel.
  • the marginal region for turning up can be turned up to provide a double thickness turned up marginal region.
  • the ends of the turned up marginal region are inclined.
  • the first, second and (if present) third panels are dimensioned whereby the ends thereof when formed into a carton are not aligned. By not aligning the ends, surprisingly it has been found that this provides a more pleasing shape.
  • the blank comprises a tab at an edge of the first panel, which tab is foldably connected to the first panel.
  • first and second panels are formed from a blank and the third panel is formed from a separate blank.
  • a method of constructing a carton comprising the steps of providing a blank or blanks according to the second aspect of the invention, applying adhesive to at least two of the panels and forming the blank or blanks into a tubular carton.
  • the adhesive is provided to the first and second panels whereby in the formed carton there is adhesive between the interior of the first panel and exterior of the second panel and between the interior of the second panel and exterior of the third panel.
  • the blank or blanks is or are convolute wound around a mandrel to form the tubular carton.
  • the mandrel may be circular cylindrical.
  • the blank is wound around a mandrel which mandrel exerts a holding force on the blank.
  • the holding force is a suction force through holes in the mandrel.
  • the blank is engaged with a mandrel about which the blank is wound.
  • the engagement is by a tab of the blank in a slot of the mandrel.
  • the tubular carton comprises a triple layer convolute spiral wound side wall.
  • a method of manufacturing a tubular carton comprises the steps of: providing a carton blank and convolute winding the blank into a tubular carton, which carton has a circumferential perimeter length less than half of the length of the blank, whereby a triple layer side wall is produced.
  • the circumferential perimeter length is less than a third of the length of the blank.
  • adhesive is provided between at least two layers of the side wall.
  • adhesive is provided between each layer of the side wall.
  • the blank is wound around a mandrel.
  • the blank is modified according to the second aspect of the invention.
  • an apparatus for manufacturing cartons from carton blanks which apparatus comprises a rotatable mandrel and means for applying a suction force to the exterior of the mandrel.
  • the suction force is provided by a reduced pressure source in fluid communication with a plurality of holes on the exterior of the mandrel.
  • the mandrel comprises means for engaging a tab of a carton blank, which means preferably comprises a longitudinal slot in the mandrel.
  • FIG. 1 of the drawings that follow there is shown a carton board blank 2 for forming a tubular carton.
  • the blank 2 comprises an inner panel 4, an intermediate panel 6 and an outer panel 8.
  • the panels 4, 6, 8 are joined and contiguous, formed from a single piece of carton board.
  • the distinction between the panels 4, 6, 8 although clear, is somewhat arbitrary as they are not separated by crease, fold or score lines. The distinction becomes more evident when the blank 2 is convolute wound to form a tubular carton as described below.
  • the inner panel 4 comprises a generally rectangular main area 10 having a flat upper edge 12, a juncture 14 (not a fold or crease line) at a side edge with intermediate panel 6, a saw tooth arrangement 16 along its lower edge and an extension tab 18 at the edge opposite juncture 14.
  • the saw tooth arrangement 16 comprises a plurality of generally triangular tabs 20 extending from main area 10 and joined thereto by a crease line 22.
  • a scored (or kiss-cut) line 23 about 10mm in from the end.
  • Intermediate panel 6 comprises a generally rectangular main area 26 having a flat upper edge 28, a juncture 14 separating it from inner panel 4, a juncture 30 separating it from outer panel 8 and at its lower edge a recess 32.
  • the outer panel 8 comprises a generally rectangular main area 34 having a flat upper edge 36, a juncture 30 separating it from intermediate panel 6, an extension flange 38 at its edge opposite juncture 30 and at its bottom edge a pre-turned up panel 40 (ie of double thickness) corresponding to recess 32.
  • the extension flange 38 comprises an elongate generally rectangular panel.
  • the upper edges 12, 28, 36 form a continuous flat upper edge along the blank.
  • the pre-turned up panel 40 of outer panel 8 has a lower edge 44 that projects slightly beyond crease line 22 which separates the saw tooth arrangement 16 from main area 10 of inner panel 4.
  • the main areas 10, 26, 34 of the panels 4, 6, 8 are of substantially similar lengths (being in the direction of arrow 46).
  • the turned up panel 40 is glued in place.
  • the main areas 26, 34 of the intermediate and outer panels 6, 8 respectively and the extension flange 38 are coated with an adhesive as shown by the shaded area of Figure 1.
  • the blank 2 is then wound around a mandrel ( Figure 9) led by inner panel 4.
  • Figure 9 of the drawings a rotatable mandrel 100 is shown for use in the manufacture of a carton according to the present invention.
  • the mandrel 100 comprises a hollow tubular body 102 and a longitudinal slot 106.
  • the interior of slot 106 is connected to a reduced pressure (vacuum) source 108.
  • the mandrel need not be circular in cross-section although often it will be. Alternative shapes include triangles and rectangles.
  • the setting adhesive between the three panels 4, 6, 8 secures the carton in its desired shape. Adhesive lies between the exterior of inner panel 4 and the interior of intermediate panel 6, and between the exterior of intermediate panel 6 and the interior of outer panel 8.
  • the extension tab 18 is inserted in to the longitudinal slot 106 to effectively anchor the blank relative to the mandrel 100.
  • Reduced pressure is applied to the slot 106 of mandrel 100 from source 108.
  • the mandrel 100 is then rotated and the blank pressed against it as it rotates.
  • the blank 2 is encouraged to lie against the mandrel 100 by the reduced pressure exerting a sucking force through slot 106.
  • the blank 2 is held in place for a length of time sufficient for the adhesive to hold the panels thereof relative to one another.
  • the made-up carton is then slid off the mandrel 100 longtidinally.
  • FIG. 2-6 there is shown a circular cylindrical tubular carton 50 formed from blank 2.
  • the exterior surface of carton 50 is the non-adhesive coated side of outer panel 8.
  • the interior surface of carton 50 is the main area 10 of inner panel 4 (the same side as that to which adhesive is applied to intermediate and outer panels 6, 8 respectively as shown in Figure 1).
  • the juncture lines 14, 30 are aligned.
  • the main areas 10, 26, 34 overlap and are aligned.
  • the extension flange 18 and extension flange 38 ensure that opposite ends of the blank 2 are not aligned, ie the ends 53, 55 of blank 2 (see Figure 1) extend beyond each other.
  • the ends 53, 55 are separated from juncture 30 which can have a weak point at the edge with the pre-turned up panel 40.
  • the weaker areas in the carton are misaligned, they do not coincide. This has been found to enhance the appearance of the carton 50 enabling it to better hold its shape and to avoid unsightly bulges.
  • the overlap need only be by a few millimetres.
  • FIG 4 there is shown a highly schematic representation of the carton 50 from which it can be seen that the blank 2 forms a convolute, spiral wound side wall with no reverses of direction of the blank in the construction. It is further noted that the ends 53, 55 of the blank 2 are misaligned. The juncture 30 is misaligned with ends 53, 55. The position of juncture 30 is indicated schematically in Figure 4.
  • the pre-turned up panel 40 lies in and substantially fills the corresponding recess 32 which is designed to receive it. Thus, the double thickness of the pre-turned up panel 40 is compensated for by recess 32.
  • the pre-turned up panel 40 provides a rigid bottom without a raw edge.
  • the end edges 51 of pre-turned up panel 40 are taken away at an angle to minimise the distorting effect of the joins and thus enhancing the aesthetics of the carton. If the panel were to be taken straight up then the weakness would be exaggerated for the entire depth of the panel leading to potential deformation.
  • the recess 32 has corresponding inclined ends 53.
  • the generally triangular tabs 20 are folded to project inwardly relative to the circumference of the carton 50 to form a location and support platform for an insert 52.
  • the tabs 20 are dimensioned whereby there are diverging gaps between them as they extend inwardly of the perimeter edge.
  • the insert 52 is a circular cut out dimensioned to fit snugly into carton 50.
  • a further insert 54 may be inserted to sandwich the generally triangular tabs 20 between two such inserts 52, 54 to provide a rigid base or lid structure.
  • preferred embodiments of the present invention can provide a pleasing tubular carton structure with tabs to provide support for a base structure, the tabs being sandwiched between a pair of disc inserts.
  • the gap between the in-turned generally triangular tabs 20 and the lower edge 44 of pre-turned up panel 40 is 1-3mm.
  • the three layer construction of carton 50 provided by inner, intermediate and outer panels 4, 6, 8 respectively is advantageous.
  • the inner panel 4 provides the support structure for an insert without having to be concerned about the shape of the exterior of inner panel 4 as it is unseen.
  • the intermediate and outer panels 6, 8 cooperate to provide a rigid, neat and convenient to manufacture bottom edge.
  • the arrangement providing an insert support structure shown at an end of the carton 50 can be provided at the other or both ends of a carton.
  • the arrangement can provide a lid and/or base structure.
  • the inner, intermediate and outer panels 4, 6, 8 may be formed from separate pieces (ie the junctures 14 and 30 become cut lines).
  • the inner panel 4 can be provided on a separate piece to the intermediate and outer panels 6,8 respectively.
  • the intermediate and outer panels 6, 8 respectively remain connected at juncture 30.
  • the inner panel 4 is placed to overlie, main area 10 on main area 26, intermediate panel 6.
  • This embodiment has the advantage that the inner panel 4 can, if desired, be printed separately. Otherwise it can produce a carton substantially similar to that shown in Figures 2-6.
  • FIG. 8 of the drawings that follow there is shown a carton board blank 2 similar to that of Figure 1 and in relation to which corresponding reference numerals have been used.
  • the embodiment of Figure 8 differs from that of Figure 1 in that in place of triangular tabs 20 it has three circular tabs 300, corresponding to the intended circular (in cross-section) shape of the eventual tubular carton.
  • faces of the circular tabs 300 that lie against one another are glued together by an adhesive.
  • a reverse crease 302 is provided approximately 5mm from the distal end of the extension flange 38.
  • the crease 302 is used to bias the end 55 inwards in the made up tubular carton. This appears to ease some of the lifting pressure from the exposed end 55 when the carton is made up.
  • the made up carton will have an exterior appearance corresponding to that of Figure 2 as will be apparent to those skilled in the art.
  • the slot 106 need not be present, but a plurality of suction holes (not shown) can be provided in the exterior of the mandrel 100 to engage the carton blank. In this case the holes are in fluid communication with the reduced pressure source.
  • cartons shown are circular cylindrical, they need not be. Cartons of other shapes including triangles, rectangles, squares etc (in cross-section) can be made, with curved or sharp corners as desired. When used on sharper curves, the tabs 20 will be narrower. The converse is true for wider curves. In the extreme case of a straight edge, only one tab 20 need be provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP99302458A 1998-03-31 1999-03-30 Rohrförmige Kartonverpackung sowie Verfahren und Vorrichtung zur Herstellung der Verpackung Withdrawn EP0949151A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9806794 1998-03-31
GBGB9806794.5A GB9806794D0 (en) 1998-03-31 1998-03-31 Improvements in and relating to carton construction

Publications (2)

Publication Number Publication Date
EP0949151A2 true EP0949151A2 (de) 1999-10-13
EP0949151A3 EP0949151A3 (de) 2000-05-10

Family

ID=10829542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99302458A Withdrawn EP0949151A3 (de) 1998-03-31 1999-03-30 Rohrförmige Kartonverpackung sowie Verfahren und Vorrichtung zur Herstellung der Verpackung

Country Status (2)

Country Link
EP (1) EP0949151A3 (de)
GB (1) GB9806794D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057705A1 (de) * 2005-12-02 2007-06-14 Abro Weidenhammer Gmbh Verpackungsbehälter, Verfahren zu seiner Herstellung und Verwendung desselben
US7484622B2 (en) 2003-11-13 2009-02-03 L'oreal Pack for an article and a method of packaging an article

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383595A (en) 1991-01-10 1995-01-24 Concept Packaging Limited Boxes
US5425498A (en) 1993-07-01 1995-06-20 Hallam; Derek Container having in-turned flange
GB2294021A (en) 1994-10-14 1996-04-17 Concept Packaging Ltd Tubular packaging container
GB2310200A (en) 1996-02-16 1997-08-20 Concept Packaging Ltd Containers
GB2312204A (en) 1996-04-20 1997-10-22 Concept Packaging Ltd An elongate boundary wall panel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542980A (en) * 1940-08-13 1942-02-04 Steel & Company Ltd J Improvements relating to canisters and the like
US3918629A (en) * 1974-01-13 1975-11-11 Westvaco Corp Tubular carton
US3929271A (en) * 1974-09-30 1975-12-30 American Can Co Carton and blank therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383595A (en) 1991-01-10 1995-01-24 Concept Packaging Limited Boxes
US5425498A (en) 1993-07-01 1995-06-20 Hallam; Derek Container having in-turned flange
GB2294021A (en) 1994-10-14 1996-04-17 Concept Packaging Ltd Tubular packaging container
GB2310200A (en) 1996-02-16 1997-08-20 Concept Packaging Ltd Containers
GB2312204A (en) 1996-04-20 1997-10-22 Concept Packaging Ltd An elongate boundary wall panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7484622B2 (en) 2003-11-13 2009-02-03 L'oreal Pack for an article and a method of packaging an article
DE102005057705A1 (de) * 2005-12-02 2007-06-14 Abro Weidenhammer Gmbh Verpackungsbehälter, Verfahren zu seiner Herstellung und Verwendung desselben
DE102005057705B4 (de) * 2005-12-02 2012-01-19 Abro Weidenhammer Gmbh Verpackungsbehälter, Verfahren zu seiner Herstellung und Verwendung desselben

Also Published As

Publication number Publication date
GB9806794D0 (en) 1998-05-27
EP0949151A3 (de) 2000-05-10

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