EP0667296A1 - Boîte en carton avec dispositif de distribution - Google Patents

Boîte en carton avec dispositif de distribution Download PDF

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Publication number
EP0667296A1
EP0667296A1 EP95300769A EP95300769A EP0667296A1 EP 0667296 A1 EP0667296 A1 EP 0667296A1 EP 95300769 A EP95300769 A EP 95300769A EP 95300769 A EP95300769 A EP 95300769A EP 0667296 A1 EP0667296 A1 EP 0667296A1
Authority
EP
European Patent Office
Prior art keywords
carton
weakness
tear strip
precursor
face
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.)
Granted
Application number
EP95300769A
Other languages
German (de)
English (en)
Other versions
EP0667296B1 (fr
Inventor
Roger Joseph Wonnacott
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.)
David S Smith Packaging Ltd
Original Assignee
David S Smith 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 David S Smith Packaging Ltd filed Critical David S Smith Packaging Ltd
Publication of EP0667296A1 publication Critical patent/EP0667296A1/fr
Application granted granted Critical
Publication of EP0667296B1 publication Critical patent/EP0667296B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/542—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body
    • B65D5/544—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body and defining after rupture a lid hinged about a line located in the top surface of the container

Definitions

  • This invention relates to a carton erected from a blank of stiff, but foldable, board material which blank incorporates the precursor of a tear strip permitting the carton to be erected into a first closed condition to contain a product (preferably of a flowable nature that can be dispensed by pouring from the carton) but on actuation of the tear strip can be converted into an opened carton for ready dispensing of the contents.
  • a product preferably of a flowable nature that can be dispensed by pouring from the carton
  • a carton erected from a blank of stiff, but foldable, board material has a bottom, a top, and side faces delimited by corners and the top, the top being provided with the precursor of a hinge extending across one corner of the carton from a first line of weakness in one face to a second line of weakness in another face, said lines of weakness being interconnected by the precursor of a tear strip formed in at least said one face and said another face whereby on actuation of the tear strip a closure cap is formed from the top which can hinge between open and closed positions about said precursor of the hinge.
  • the carton is of right parallelepipedic form and the precursor of the tear strip runs from a pull tab adjacent one corner of the carton to a cut formed in the next adjacent side face intermediate the corners that define that side face.
  • the lines of weakness in the side faces extend parallel to the corners and in a preferred arrangement one line of weakness is located at or adjacent to one corner and preferably extends down to the pull tab. Either or both lines of weakness can be a cut or a partial cut.
  • the top is formed from overlain flaps forming extensions of the side faces, the precursor of the hinge being formed as a line of weakness along at least one of said flaps.
  • the two side faces involved in the creation of the cap at least in part, as double layers, only the outer layer of which is torn by the actuation of the tear strip.
  • the tear strip is created from at least one length of reinforcing tape adhered to or incorporated in,the board material.
  • straight lengths of tape can be employed in a right parallelepipedic carton which lengths extend through each of the four side faces and the two double layers provided to supplement the faces torn during opening of the carton, the extent of the tearing open being limited by a cut formed through this reinforcing tape or tapes in the vicinity of the second line of weakness.
  • the bottom of the carton can similarly be formed from overlain flaps forming extensions of the side faces.
  • the invention also extends to a blank of stiff, but foldable, board material from which the carton can be erected.
  • a particular advantage of the invention is that it enables a blank of board material to be partially erected into a knocked-down carton which can be supplied to users as a finished flat blank merely requiring erection by folding in bottom-forming flaps prior to filling and closing of the top subsequent to filling. Erection and filling can be effected using automatically operating machinery.
  • a variety of different forms of stiff, but foldable, board material can be employed to fabricate a carton in accordance with the invention but a preferred material is double-faced corrugated board, the tear strip incorporating two parallel longitudinally splittable reinforcing tapes one located between layers of the corrugated board and another located on the inside of the inner layer of the board, since experience has shown that tapes of this design will create a very clean tear when they are actuated.
  • the pull tab is cut as a tapered piece of board material whose narrow end overlies a central part of two parallel splittable tapes.
  • the facing sheet of double-faced corrugated board destined to be innermost on erection of the blank into a carton can be provided with a moisture-proof barrier layer (e.g. of a plastics material) .
  • a moisture-proof barrier layer e.g. of a plastics material
  • a sandwich construction of paper/moisture barrier/paper can be used as the inner facing sheet or a barrier layer can be adhered to a paper facing sheet as the board material is being formed on a corrugator.
  • this illustrates a pre-cut pre-creased blank 10 of stiff, but foldable, double-faced corrugated fibreboard material as seen from the inside and comprises a front panel 11, a first side panel 12, a rear panel 13, a second side panel 14, a secondary front panel 15 and a secondary partial side panel 16 joined side-by-side by parallel crease lines (shown in Figure 1 as dashed lines) which will define the corners of the eventually erected carton.
  • the direction of the flutes in the intermediate web of the three web board material is indicated by the arrow A in Figure 1.
  • the bottom of the carton is created by integral end flaps 11a, 12a, 13a and 14a and the top of the carton is created by integral end flaps 11b, 12b, 13b and 14b, these end flaps being delimited from the respective panels 11 to 14 by further crease lines also shown dotted.
  • a reinforcing tape 17 which terminates in the front panel 11 in a pull tab 18.
  • the tape 17 is cut at the point 20 in the side panel 12 at the location of a line of weakness 24 which extends from the cut 20 to the top of the panel 12 where it meets an inclined line of weakness 21, the purpose of which will be further described.
  • the top flap 14b also includes an inclined line of weakness 22.
  • Figure 2 shows a carton 30 erected from the blank of Figure 1 and Figures 5 and 6 show how this erection is effected, it being noted that the secondary front panel 15 completely underlies the front panel 11 and the secondary side panel 16 partially underlies the first side panel 12. These secondary panels 15 and 16 are not clearly evident in the erected but unopened carton shown in Figure 2 although the panel 15 can just be seen at the edge of the panel 11 behind the pull tab 18.
  • the blank 10 forms a knocked-down format 10A as shown in Figure 7 and in this form can be delivered to a user.
  • lines 21 and 22 are collinear and define the precursor of a diagonal hinge extending across the top of the carton from the corner at which the pull tab 18 is located to the region on the side panel 12 where the cut 20 is formed at the lower end of the line of weakness 24.
  • Figures 3 and 4 show the carton is opened by actuating the tear strip using the pull tab 18.
  • Figure 3 shows the tear strip 19 partially removed and
  • Figure 4 shows how, on its complete removal, a triangular cap 23 is created from the top which can be lifted by folding back to expose the contents.
  • the purpose of the secondary walls 15 and 16 is now readily apparent, these acting to prevent spillage of contents until the carton 30 is tipped, usually with the exposed corner lowermost, to provide a true dispensing operation of the contents.
  • the preferred material for the tape 17 is SESAME (Trade Mark) tape, this being a longitudinally splittable fibrous tape that can be incorporated in corrugated fibreboard material as the material is made on the corrugator. Desirably two lengths of this tape are provided one above the other (see Figure 8), one length 17a being located on the back of the front facing web 10a of the corrugated board material used for the blank 10 of Figure 1 and the other length 17b being located on the back of the rear facing web 10c.
  • the corrugated central web is shown at 10b. With this arrangement one tape length (17a) is hidden in the laminations of the board material and is thus invisible from the intended front face of the board material while the other tape length (17b) is visible when viewing the inside face of the carton.
  • the pull tab 18 is cut into the blank 10 in such a way that the cuts defining it only partially sever both tape lengths at the inner narrow end of the pull tab 18, so that when the tab 18 is pulled away from the panel 11 a narrow central strip 17c is torn out of both lengths of tape 17a and 17b leaving a clean cut in all three webs 10a, 10b and 10c of the board material from the location of the tear tab 18 through to the cut line 20.
  • To facilitate grasping of the tab 18 it can project slightly proud of the rest of the edge of the front panel 11 as shown in Figure 8.
  • the cap 23 can be opened and closed many times about the hinge formed by the lines 21 and 22 so that partial dispensing of the carton contents can also be undertaken many times.
  • the ears 14c shown provided on the flap 14b are an optional feature but when provided create a finger tab for facilitating opening of the carton 30.
  • the cutting away of one corner of the flap 11b facilitates the hinging of the cap 23 about the hinge lines 21, 22.
  • the flap 12b can be of the same height as flap 14b in which case the line of weakness 21 extends all the way up to the left-hand top corner of the flap 12b.
  • a suitable pourable material for containment in the carton is seeds and to protect these from moisture ingress the board material from which the blank 10 is stamped can be rendered moisture-proof (e.g. by coating, laminating (for example with MELINEX (TM)) or using, as the inner liner 10c of the board, a polythene-lined paper or a paper/polythene/paper sandwich.
  • a thin polythene barrier layer suitable for incorporation in such a sandwich is that known under the Trade Mark PARATEN.
  • Moisture protection is particularly important in the case of seeds provided with an insecticidal coating based on pva.
  • Prior art cartons to contain coated seed e.g. sugar beet seeds
  • a separate moisture-proof bag contained within a fibreboard carton but by using a carton in accordance with this invention which has been made from board material moisture-proofed on its inner facing surface in the manner described, the use of a separate bag can be dispensed with making the seeds more readily available for use when required without impairing the protective coating on the seeds which gives them a (near) 100% germination success rate.
  • Moisture proofing of board material with a layer of MELINEX (TM) or PARATEN (TM) does not interfere with the actuation of the tear strip required to create the openable cap 23.
  • 100000 sugar beet seeds each protected with a pva layer dusted with insecticide/fungicide could be housed in a parallelepipedic carton of 308 mm x 193 mm x 121 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
EP19950300769 1994-02-09 1995-02-08 Boíte en carton avec dispositif de distribution Expired - Lifetime EP0667296B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9402478A GB9402478D0 (en) 1994-02-09 1994-02-09 Improved carton with despensing facility
GB9402478 1994-02-09

Publications (2)

Publication Number Publication Date
EP0667296A1 true EP0667296A1 (fr) 1995-08-16
EP0667296B1 EP0667296B1 (fr) 1998-06-17

Family

ID=10750109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950300769 Expired - Lifetime EP0667296B1 (fr) 1994-02-09 1995-02-08 Boíte en carton avec dispositif de distribution

Country Status (3)

Country Link
EP (1) EP0667296B1 (fr)
DE (1) DE69502970T2 (fr)
GB (1) GB9402478D0 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541143A (en) * 1921-08-23 1925-06-09 Hoile Richard Carton or container
FR2514324A3 (fr) * 1981-10-08 1983-04-15 Trepat Graficas Ind Boite d'emballage
US4913292A (en) * 1989-03-22 1990-04-03 Westvaco Corporation Flip-top dispensing container
EP0454506A1 (fr) * 1990-04-24 1991-10-30 Hugues Nicollet S.A. Emballage en carton, carton ondulé ou autre matériau en feuille convenablement découpé et plié, à couvercle refermable par encliquetage, et flan(s) correspondant(s)
US5222660A (en) * 1991-12-12 1993-06-29 Accurate Box Company, Inc. Flip-top carton for powdered detergent

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541143A (en) * 1921-08-23 1925-06-09 Hoile Richard Carton or container
FR2514324A3 (fr) * 1981-10-08 1983-04-15 Trepat Graficas Ind Boite d'emballage
US4913292A (en) * 1989-03-22 1990-04-03 Westvaco Corporation Flip-top dispensing container
EP0454506A1 (fr) * 1990-04-24 1991-10-30 Hugues Nicollet S.A. Emballage en carton, carton ondulé ou autre matériau en feuille convenablement découpé et plié, à couvercle refermable par encliquetage, et flan(s) correspondant(s)
US5222660A (en) * 1991-12-12 1993-06-29 Accurate Box Company, Inc. Flip-top carton for powdered detergent

Also Published As

Publication number Publication date
EP0667296B1 (fr) 1998-06-17
DE69502970D1 (de) 1998-07-23
DE69502970T2 (de) 1998-11-12
GB9402478D0 (en) 1994-03-30

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