EP0141491A2 - Récipient et flanc pour sa construction - Google Patents

Récipient et flanc pour sa construction Download PDF

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Publication number
EP0141491A2
EP0141491A2 EP84305371A EP84305371A EP0141491A2 EP 0141491 A2 EP0141491 A2 EP 0141491A2 EP 84305371 A EP84305371 A EP 84305371A EP 84305371 A EP84305371 A EP 84305371A EP 0141491 A2 EP0141491 A2 EP 0141491A2
Authority
EP
European Patent Office
Prior art keywords
fold
panel
segment
panels
score line
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Withdrawn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
EP84305371A
Other languages
German (de)
English (en)
Other versions
EP0141491A3 (fr
Inventor
Robert E. Lisiecki
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.)
Ex-Cell-O Corp
Original Assignee
Ex-Cell-O Corp
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 Ex-Cell-O Corp filed Critical Ex-Cell-O Corp
Publication of EP0141491A2 publication Critical patent/EP0141491A2/fr
Publication of EP0141491A3 publication Critical patent/EP0141491A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B65D5/541—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 one or more closure flaps

Definitions

  • This invention relates generally to thermoplastic coated paperboard containers and, more particularly, to a blank and a container including a flat top end closure of an improved construction.
  • Containers for beverages such as milk, cream, other dairy products, juices, and the like, are conventionally constructed from thermoplastic coated paperboard.
  • Coated paperboard blanks for constructing such a container are made on converting machines similar to those disclosed by Monroe et al. Patent No. 2,682,208 and Earp Patent No. 3,731,600. After construction, the blanks are processed by forming, filling and sealing machines, such as those disclosed by Monroe et al. Patent No. 3,303,761, Allen Patent No. 3,918,236, Egleston Patent No. 3,398,659 or Young Patent No. 4,193,833, to produce the formed, filled and sealed containers of the type referred to above and shown and described in Egleston et al. Patent Nos. 3,270,940 and 3,120,335.
  • thermoplastic coated paperboard container with a non-gable, flat top closure arrangement may be used for frozen juices, in lieu of the well known cylindrical paperboard container with a removable metal or solid plastic top cover.
  • a suitable top closure arrangement for frozen juices is shown and described in Lisiecki Patent No. 4,397,415. However, it is desirable to modify the latter structure so as to assure that the opening process occurs smoothly and easily, and without fiber tear along the sealed edges.
  • a general object of the invention is to provide a blank for a frozen juice container including improved top closure means for attaining the above mentioned desirable results.
  • Another object of the invention is to provide an improved thermoplastic coated paperboard container suitable for being filled with a juice concentrate and frozen, and then capable of being readily and smoothly opened without evidencing fiber tear.
  • a further object of the invention is to provide a square or rectangular paperboard container including an improved non-gable type, flat top closure arrangement.
  • a still further object of the invention is to provide a flat top container including two short side edge panels having perforations along the lengths thereof, a front edge panel which is adaptable to being sealed at the ends thereof to the side edge panels, while including an extention connected thereto by perforations and being folded at the perforations back across itself such that.a lift tab extends beyond the front body panel, and a cover panel integrally connected to the top of the back body panel and adapted to fold across the entire top of the container and be sealed to the side and front edge panels.
  • Figure ° 1 illustrates a container blank 10 formed in accordance with the principles of the present invention.
  • the container blank 10 is generally divided into three sections including a top end closure 12, a body portion 14, and a flat bottom end closure (not shown).
  • the latter may be any suitable end closure arrangement and is not a part of this invention.
  • staggered top horizontal score lines 16a, 16b, 16c, 16d and 16e extend transversely across the container blank 10 and separate the top end closure 12 and the body portion 14. As shown in Figure 1, score lines 16a and 16e are at the highest elevation, score lines 16b and 16d are located below the score lines 16a and 16e a distance substantially equal to the thickness of the paperboard, and the score line 16c is the same distance below the score lines 16b and 16d.
  • a bottom horizontal score line (not shown) extends transversely across the container blank 10 and separates the bottom end closure (not shown) and the body portion 14.
  • the body portion 14 comprises a plurality of integrally connected body panels, namely, a back panel 18, a side panel 20, a front panel 22 and a side panel 24, and a side seam flap or narrow fifth panel 26 formed adjacent the panel 24.
  • the container blank 10 is defined on its longitudinal sides by its edges 28 and 30.
  • the body panels 18, 20, 22 and 24, and the side seam flap 26, are defined by vertical score lines 32, 34, 36 and 38. It should be apparent that the body panels may be equal in width and hence, adaptable to forming a square cross-section container, or may be formed such that one pair of alternate body panels is wider than the other pair and, hence, adaptable to forming a rectangular cross-section container.
  • the top end closure 12 comprises side fold-in edge panels 40 and 42.
  • the panels 40 and 42 include respective segments 44 and 46 connected to the body panels 20 and 24 at the score lines 16b and 16d, and extended segments 48 and 50 connected to the segments 44 and 46 by respective weakened lines 52 and 53, such as perforated lines or partial cuts.
  • the segments 48 and 50 are each narrower than the respective adjacent segments 44 and 46 by virtue of rectangular spaces 54 and 55 being formed adjacent the respective outer edges of the segments 48 and 50.
  • a cover panel 56 and a front edge panel 58 are connected integrally to the body panels 18 and 22, respectively, at the score lines 16a and 16c.
  • a further panel 60 is connected integrally to the upper end of the side seam flap 26 at the score line 16e.
  • a diagonal score line 62 extends from the juncture of the score lines 16b and 32 across the segment 44 to the juncture of the segments 44 and 48, forming a triangular fold-over panel segment 64.
  • a diagonal score line 66 likewise extends from the juncture of the score lines 16d and 38 across the segment 46 to the juncture of the segments 46 and 50, forming a triangular fold-over panel segment 68.
  • the front edge panel 58 includes a fold-in segment 70 connected to the body panel 22 at the score line 16c, and a narrower segment 72 extending from the panel segment 70, with a weakened line 74, such as a perforated line or a partial cut, formed therebetween.
  • a horizontal score line 76 is formed across the panel segment 72 at a distance from the perforations 74 approximately equal to the height of the panel segment 70, separating the segment 72 into a fold-out portion 72a and a fold-back portion 72b, the latter to become a lift tab, as will be explained.
  • Oppositely disposed diagonal score lines 78 and 80 are formed on the panel segment 70.
  • the diagonal score line 78 extends from the juncture of the score lines 16c and 34 to the right hand ( Figure 1) juncture of the free cut edges of the panel segment 70 and the portion 72a, producing a triangular fold-over panel portion 82.
  • the diagonal score line 80 extends from the juncture of the score lines 16c and 36 to the left hand juncture of the free cut edges of the panel segment 70 and the portion 72a, producing a triangular fold-over panel portion 84.
  • the diagonal score lines 78 and 80 may be moved away from the respective junctures of the adjacent vertical and horizontal score lines to points on the horizontal score line 16c apart from the respective vertical score lines 34 and 36.
  • the container blank 10 illustrated in Figure 1 is first formed into a side seam blank in the customary manner by rotating the body panel 24 and the side seam flap 26 as a unit about the vertical score line 36, and having the inside surfaces of the body panel 24 come into contact with the inside surface of the body panel 22, with the vertical score line 38 positioned next to the vertical score line 34, and with the inside surface of the side seam flap 26 contacting the inside surface of the body panel 20 adjacent the vertical score line 34.
  • the body panel 18 is then rotated about the vertical score line 32 to bring its inside surface into contact with the inside surface of the body panel 20.
  • the inside surface of the body panel 18 along the edge 28 comes into contact with the outside surface of the side seam flap 26, and the edge 28 is positioned parallel and aligned with the vertical score line 38.
  • the various members of the top end closure 12 and the bottom end closure will make similar movements.
  • the container blank 10 is then sealed where the inside area of the body panel 18 comes into contact with the outside surface of the side seam flap 26.
  • the side seam panel 26 could be sealed to the outside surface of the adjacent back panel 18, rather than to the inner surface thereof as described above.
  • the eventual top closure arrangement of the invention is a non-gable, flat top configuration, it has been proven to be more compatible with existing forming, filling and sealing machines to form the top closure first, in a manner heretofore used for a conventional bottom closure arrangement. Then, after filling the container through the open end, the panels associated therewith are closed and sealed in any suitable manner.
  • the various parts of the eventual top end closure 12 are folded on the various-score lines in the following manner so as to form the top end structure.
  • the front edge panel 58 is folded or bent inwardly on the score line 16c and outwardly about the weakened or perforated line 74, and then downwardly about the score line 76, resulting in the fold-out panel portion 72a engaging the fold-in panel segment 70, and the fold-back panel portion 72b engaging the upper end of the front body panel 22.
  • Such action will have caused the panel segment to begin to bend along the diagonal score lines 78 and 80.
  • the full side edge panels 40 and 42 are next folded or bent inwardly toward each other, causing the panel portions 82 and 84 to be pressed downwardly into engagement with the panel segment 70, while bending along the respective diagonal score lines 62 and 66. Finally, the cover panel 56 is folded or bent inwardly and downwardly, causing the panel portions 64 and 68 to be pressed downwardly into engagement with the respective panel segments 44 and 46.
  • FIG. 3 illustrates the top end closure 12 structure once the sealing thereof has been effected. While the cover panel 56 is tightly sealed adjacent the upper ends of the body panels 20, 22 and 24 for a width equivalent to the heights of the panels 40, 42 and 70, the lift tab 72b may be merely spot welded to the cover panel 56 for easy release therefrom. It should be noted that, if desired, the lift tab 72b may be folded down onto the upper portion of the front body panel 22, rather than back onto the cover panel 56.
  • the lift tab formed by the panel portion 72b is lifted from the cover panel 56 or the front body panel 22.
  • the lift tab serves to pull the panel portion 72a away from the panel segment 70, breaking the weakened line 74 and, as the lift tab 72b is raised still further, the cover panel 56 is pulled away from the side edge panel segments 44 and 46, with a clean break along the weakened lines 52 and 54, as shown in Figure 4.
  • the four fold-down panels 82, 84, 64 and 68 are partially lifted up from the panel segments 70 at the front and 44 and 46 at the back, causing the remaining panel segments 70, 44 and 46 to be free to swing into a vertical mode about the respective score lines 16c, 16b and 16d, thus providing a substantially completely open top for discharge of frozen or semi-frozen juice contents.
  • thermoplastic coated paperboard carton which is ideally suited for being filled with a juice concentrate, such as orange juice concentrate, for example, and then adapted to being readily opened, with minimal fiber tear, for removal of the contents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)
EP84305371A 1983-11-07 1984-08-07 Récipient et flanc pour sa construction Withdrawn EP0141491A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54904883A 1983-11-07 1983-11-07
US549048 1983-11-07

Publications (2)

Publication Number Publication Date
EP0141491A2 true EP0141491A2 (fr) 1985-05-15
EP0141491A3 EP0141491A3 (fr) 1985-12-18

Family

ID=24191453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84305371A Withdrawn EP0141491A3 (fr) 1983-11-07 1984-08-07 Récipient et flanc pour sa construction

Country Status (7)

Country Link
EP (1) EP0141491A3 (fr)
KR (1) KR850004228A (fr)
AU (1) AU3188384A (fr)
BR (1) BR8404912A (fr)
DK (1) DK527184A (fr)
FI (1) FI844177L (fr)
NO (1) NO844394L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248241A2 (fr) * 1986-05-30 1987-12-09 Ex-Cell-O Corporation Récipient à sommet plat et flan pour son obtention
EP0321762A1 (fr) * 1987-12-18 1989-06-28 Elopak Systems Ag Récipient à sourmet plat et flan pour son obtention
GB2344100A (en) * 1998-11-27 2000-05-31 Petrushkin Limited M Container with tear-open means
WO2008049794A1 (fr) * 2006-10-23 2008-05-02 Unilever Plc Contenant
JP2020186056A (ja) * 2019-05-16 2020-11-19 イェインディーピー カンパニー，リミテッド 段ボールボックスの隙間詰め構造

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102089502B1 (ko) * 2018-11-26 2020-03-16 주식회사 쓰리에스테크 밀폐구조를 통한 보냉 및 보온성이 향상된 배송박스

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713454A (en) * 1954-04-14 1955-07-19 Patent & Licensing Corp Easy opening container
US4397415A (en) * 1982-02-25 1983-08-09 Ex-Cell-O Corporation Container and blank for constructing same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713454A (en) * 1954-04-14 1955-07-19 Patent & Licensing Corp Easy opening container
US4397415A (en) * 1982-02-25 1983-08-09 Ex-Cell-O Corporation Container and blank for constructing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248241A2 (fr) * 1986-05-30 1987-12-09 Ex-Cell-O Corporation Récipient à sommet plat et flan pour son obtention
EP0248241A3 (en) * 1986-05-30 1988-11-17 Ex-Cell-O Corporation Flat top container and blank for constructing same
EP0321762A1 (fr) * 1987-12-18 1989-06-28 Elopak Systems Ag Récipient à sourmet plat et flan pour son obtention
GB2344100A (en) * 1998-11-27 2000-05-31 Petrushkin Limited M Container with tear-open means
WO2008049794A1 (fr) * 2006-10-23 2008-05-02 Unilever Plc Contenant
JP2020186056A (ja) * 2019-05-16 2020-11-19 イェインディーピー カンパニー，リミテッド 段ボールボックスの隙間詰め構造

Also Published As

Publication number Publication date
AU3188384A (en) 1985-05-16
NO844394L (no) 1985-05-08
FI844177A0 (fi) 1984-10-24
DK527184A (da) 1985-05-08
KR850004228A (ko) 1985-07-11
DK527184D0 (da) 1984-11-06
EP0141491A3 (fr) 1985-12-18
FI844177L (fi) 1985-05-08
BR8404912A (pt) 1985-08-20

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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Withdrawal date: 19851108

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Inventor name: LISIECKI, ROBERT E.