EP0303582B1 - Faltschachtel - Google Patents

Faltschachtel Download PDF

Info

Publication number
EP0303582B1
EP0303582B1 EP88850243A EP88850243A EP0303582B1 EP 0303582 B1 EP0303582 B1 EP 0303582B1 EP 88850243 A EP88850243 A EP 88850243A EP 88850243 A EP88850243 A EP 88850243A EP 0303582 B1 EP0303582 B1 EP 0303582B1
Authority
EP
European Patent Office
Prior art keywords
folding box
line
creasing lines
end closure
creasing
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.)
Expired - Lifetime
Application number
EP88850243A
Other languages
English (en)
French (fr)
Other versions
EP0303582A1 (de
Inventor
Göran Ström
Frans Johansson
Bengt Björklund
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.)
A&R Carton AB
Original Assignee
Akerlund and Rausing AB
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 Akerlund and Rausing AB filed Critical Akerlund and Rausing AB
Priority to AT88850243T priority Critical patent/ATE68764T1/de
Publication of EP0303582A1 publication Critical patent/EP0303582A1/de
Application granted granted Critical
Publication of EP0303582B1 publication Critical patent/EP0303582B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/563—Laminated linings; Coatings
    • 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
    • B65D5/02—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0272—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 or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by applying a web on the edge of the body, and subsequent inward folding of flaps
    • 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
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels

Definitions

  • the present invention relates to a folding box of cardboard or similar material according to the preamble of claim 1, and more particularly to a folding box of the type where a so called membrane is used for sealing and closing at least one end of the folding box.
  • the tightness obtained by means of an internal thermoplastic coating and in the actual case, by means of fibre wads at the corners, is fully acceptable for providing a good powder tightness and sufficient tightness for, for instance, deep frozen products such as fruit juice.
  • the object of the present invention is to develop the said corner structure further, so that with a minimum of modifications of existing production equipment and packing lines, respectively, it will be possible to accomplish even better sealing conditions at the corners of the folding box, at one or both ends thereof. Especially the object is to provide better sealing possibilities when using a membrane of the type mentioned in the introduction.
  • the present invention provides a package comprising a sleeve of cardboard or corresponding material formed by side wall panels and end closure panels integral therewith at each end of the sleeve for forming a package of the folding box type, where first creasing lines extending in the longitudinal direction of the folding box define a polygonal cross section of the folding box and second creasing lines perpendicular to said first creasing lines define transitions between the sleeve and a respective one of the end closure panels, the end closure panels being partially separated by a punched-out portion distanced from a real or imaginary straight line joining adjacent said second creasing lines, the said punched-out portion defining a panel outer edge line between each pair of adjacent end closure panel.
  • a package is known e.g. from US-A-3040958.
  • the package is characterised in that the said panel outer edge line is a continuously curved and unbroken line which is arranged such that the point of the curve nearest the real or imaginary straight line joining adjacent said second creasing lines is substantially in line with a said first creasing line.
  • a pair of said second creasing lines and the respective one of said first creasing lines belonging thereto start out from substantially one and the same point, which defines one corner at either folding box end.
  • At least the internal side of the folding box is coated by a thermoplastics material, and a closure membrane is sealed to the folding box by being attached to the plastics coating in a region between said panel outer edge lines at either folding box corner, and by being attached in a manner known per se to at least portions of the end closure panels.
  • the minimum distance between the point of the curve nearest the real or imaginary straight line joining adjacent said second creasing lines to said line is of the magnitude 1,5 to 4 mm.
  • the reference numeral 10 in Fig. 1 denotes a side wall of a folding box blank of cardboard or similar material.
  • the blank is coated by thermoplastics material at least at the side thereof which is to form the inside of the folding box.
  • the numeral 11 denotes a portion of an adjacent side wall or side wall panel. Said panels are separated from each other by a creasing line 12 or a corresponding folding denotation. This folding denotation starts from a point 13, from which a second set of creasing lines 15, 15a also starts out.
  • Such creasing lines 15, 15a define the boundary line between the side wall panels 10, 11 and the end closure panels 16, 17.
  • the punch line 19 continues with a portion 19a below the lowest point of the punch line 20.
  • a not broken-through material bridge 21 which, when folding out flaps as will be explained later on, forms said "fiber wads" when the tension in the bridge portion 21 exceeds the tension strength or elongation strength.
  • Fig. 2 there is shown another type of known corner structure.
  • the numerals 22, 23 denote adjacent side wall panels, whilst the numerals 24, 25 and 25a denote creasing lines or corresponding folding denotations.
  • the numeral 26 denotes a punch line, which separates the end closure flaps 27 and 28.
  • a not broken-through material portion 29 the purpose of which is to form the said fiber wad.
  • Fig. 3 which represents a known structure, (US 3040958)
  • double creasing lines 29, 30 between adjacent side wall panels 31, 32.
  • a creasing denotation 33, 33a separates the side walls panels 31, 32 from adjacent end closures 34, 35 and a punch line 36 separates the end closures 34, 35.
  • a not broken through material portion 37 between the lowest point of the punch line and the level defined by a line 33, 33a.
  • Fig. 4 there is shown a further embodiment according to US patent number 3040958 where side wall panels 38, 39 are separated by double creasing lines 40, 41.
  • the creasing lines 40, 42 define the transition line between the end closure flaps 43, 44 and the side walls 38, 39.
  • a punch line 45 extends down to a point 46, where short creasing lines 47, 48 connect said point to the end points of the double creasing lines 40, 41.
  • Fig. 5 there is shown a first embodiment of the corner structure according to the invention.
  • Parts of the side wall panels 49, 50 are separated from each other by a creasing line 51, which is terminated upwards in a point 52, which falls on a straight line or even finds the border point between two further creasing lines 53, 53a forming part of the second set of the creasing lines for defining the transition between side walls and end closure panels.
  • FIG. 5 adjacent end closure panels have been denoted 54, 55. In the actual case a relatively wide punched out region 56 is formed between the panels.
  • the region 57 of the end closure and panel outer boundary line cut out 56 defines a continuous section into said region 57. This means that the strain, elongation of the plastics coating, at the end closure panels in the region between the point 52 and the section 57 of the outer bondery line, is distributed uniformly, so that the plastics coating or plastics layer actually will be expanded or enlarged when the end closure panels 54, 55 are folded out to a horizontal position when sealing a membrane.
  • the tensioning obtained will be distributed uniformly because the deformation takes place along a continuous line 57 instead of taking place abruptly as in Fig. 1, 2 and 3, where frequently the plastics coating is torn up along a tear up line meaning insufficient sealing along the line and the formation of penetration or leaking channels.
  • the force when folding out the end closure panels 54, 55 is transferred uniformly to the plastics layer in the region between the section 57 and the point 52, meaning that an unbroken sealing area comprising heat sealable thermoplastics is obtained and which area will also be the subject of an enlarging effect due to the folding out and the tensioning following thereafter, however, without any rupture of the plastics coatings.
  • FIG. 6 shows adjacent folding box side wall panels separated by a creasing line 61 which in a point 62 joins an integral creasing line 63, 63a, forming part of a second set of creasing lines.
  • the end closure 64 and 65 are here separated by a somewhat narrower punched out region 66 which, however at the outer part thereof is terminated by a continuous section 67 coresponding to the section 57 in Fig. 5.
  • the so called end closure panel outer boundary line has been identified by the numeral 68.
  • a folding box 69 manufactured from the blank in Fig. 5.
  • the folding box is filled and closed at the top by a sealing membrane 70 of for instance polyethylene coated thin paper.
  • the membrane is sealed against portions of the end closure wall panels according to the invention, in the specific corner regions formed between continuous punched out sections 57 and adjacent crossing points 52 of crease lines 51 and 53, 53a respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)

Claims (4)

1. Verpackung bestehend aus einem zylinder- oder hülsenartigen Element aus Karton oder entsprechendem Material, welches von Seitenwänden (49, 50; 59, 60) und einstückig mit diesen hergestellten Endverschließwänden (54, 55; 64, 65) an jedem Ende des zylinder- oder hülsenartigen Elementes besteht, um eine Verpackung (69) nach Art einer Faltschachtel zu bilden, wobei sich erste Faltlinien (50, 61) in einer Längsrichtung der Faltschachtel erstrecken und einen polygonalen Querschnitt für diese Faltschachtel bilden, wobei sich zweite Faltlinien (53, 53a; 63, 63a) senkrecht zu den ersten Faltlinien erstrecken, um Übergänge zwischen dem hülsen- oder zylinderartigen Element und jeweils einem der Endverschließwände zu bilden, wobei die Endverschließwände (54, 55; 64, 65) durch einen ausgestanzten beschnitt (56, 66) teilweise voneinander getrennt sind, der von einer reellen oder imaginären geradlinigen Linie, die im Bereich der zweiten Faltlinien (53, 53a; 63, 63a) verläuft, beabstandet ist, wobei der ausgestanzte Abschnitt eine Wandaußenrandlinie zwischen jedem Paar von benachbarten Endverschlußwänden bildet, dadurch gekennzeichnet, daß die erwähnte Wandaußenrandlinie eine durchgehend gekrümmte und nicht unterbrochene Linie (57, 67) ist, die so ausgebildet ist, daß derjenige Kurvenpunkt, der der realen oder imaginären im Bereich der zweiten Faltlinien (53, 53a; 63, 63a) vorgesehenen geraden Linie am nächsten ist, im wesentlichen in einer Linie mit einer ersten Faltlinie (51, 61) liegt.
2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß ein Paar von zweiten Faltlinien (53, 53a; 63, 63a) und eine zugehörige erste Faltlinie (51, 61) von ein und demselben punkt (52; 63) ausgeht, der eine Ecke an dem jeweiligen Ende der Faltschachtel bildet.
3. Verpackung nach Anspruch 2, wobei die Verpackung wenigstens an ihrer Innenseite einen Überzug aus einem thermoplastischen Material aufweist, dadurch gekennzeichnet, daß eine Verschlußmembrane dicht mit der Faltschachtel verbunden ist, und zwar durch Befestigen an der Kunststoffschicht im Bereich zwischen den erwähnten Wandaußenrändern (57, 67) an jeder Ecke (52, 63) der Faltschachtel, sowie durch Befestigung an wenigstens Teilen der Endverschlußwände, und zwar in einer an sich bekannten Weise.
4. Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß der minimale bestand zwischen dem Kurvenpunkt, der der realen oder imaginären im Bereich der zweiten Faltlinien (53, 53a; 63, 63a) vorgesehenen geraden Linie am nächsten ist, von dieser Linie etwa in der Größenordnung von 1,5 bis 4 mm liegt.
EP88850243A 1987-07-13 1988-07-07 Faltschachtel Expired - Lifetime EP0303582B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88850243T ATE68764T1 (de) 1987-07-13 1988-07-07 Faltschachtel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8702849A SE468941B (sv) 1987-07-13 1987-07-13 Aendfoerslutning foer foerpackningskapsel av kartong eller liknande material
SE8702849 1987-07-13

Publications (2)

Publication Number Publication Date
EP0303582A1 EP0303582A1 (de) 1989-02-15
EP0303582B1 true EP0303582B1 (de) 1991-10-23

Family

ID=20369117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88850243A Expired - Lifetime EP0303582B1 (de) 1987-07-13 1988-07-07 Faltschachtel

Country Status (5)

Country Link
EP (1) EP0303582B1 (de)
AT (1) ATE68764T1 (de)
DE (1) DE3865773D1 (de)
ES (1) ES2026696T3 (de)
SE (1) SE468941B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20080373A1 (it) * 2008-06-12 2009-12-13 Gd Spa Pacchetto a tenuta termica.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH327604A (de) * 1954-06-16 1958-01-31 Akerlund & Rausing Ab Verpackung mit einem längs Knifflinien gefalteten Kartonstück
US3040958A (en) * 1957-10-07 1962-06-26 Roy S Sanford & Company Carton
SE456493B (sv) * 1985-04-24 1988-10-10 Stig Winterling Forpackningsask

Also Published As

Publication number Publication date
ATE68764T1 (de) 1991-11-15
EP0303582A1 (de) 1989-02-15
SE468941B (sv) 1993-04-19
ES2026696T3 (es) 1992-05-01
DE3865773D1 (de) 1991-11-28
SE8702849L (sv) 1989-01-14
SE8702849D0 (sv) 1987-07-13

Similar Documents

Publication Publication Date Title
EP0368053B1 (de) Öffnungsanordnung auf einem Verpackungsbehälter
EP0267526B1 (de) Verpackungsbehälter für Flüssigkeiten
EP0423456B1 (de) Geänderte Reissverschlusselemente für leicht zu öffnende Behälter
EP0320475B1 (de) Behälterverschluss
EP0331792A2 (de) Leicht zu öffnender Behälter mit giebelförmigem Oberteil und Siegelwerkzeug zu seiner Herstellung
EP0267171B1 (de) Faltschachtel
US4433784A (en) Arrangement on packing containers
EP1585677B1 (de) Verpackung mit einer öffnungsanordnung sowie verfahren zur bereitstellung einer verpackung mit einer öffnungsanordnung
US4915236A (en) Cardboard and plastic composite parallelopipedal container for liquid
US4887765A (en) Fluid pack and process for the production thereof
CA1306450C (en) Carton with reclosable membrane liner
EP0664759B1 (de) Verfahren zur herstellung einer fliessmittelverpackung und werkzeug zur durchführung des verfahrens
EP0448882B1 (de) Giebelbehälter und Verfahren und Gerät zu dessen Herstellung
EP0303582B1 (de) Faltschachtel
US20050258222A1 (en) Rupturable opening for sealed container
CA1207248A (en) Edge-bonding of sheet material
US4819864A (en) Carton and blank for packing ice cream and the like
EP0089501B1 (de) Verpackung
EP0235709B1 (de) Mit einer Öffnungsvorrichtung versehener Verpackungsbehälter
EP0656300B1 (de) Originalitätssicherungsverschluss für Verpackungsbehälter und Herstellungsverfahren
EP0439958A1 (de) Verfahren und Vorrichtung zur Herstellung eines Giebelbehälterverschlusses
US20040108371A1 (en) Opening arrangement, packaging and method of providing a packaging with an opening arrangement
GB2257686A (en) Containers

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL

17P Request for examination filed

Effective date: 19881222

17Q First examination report despatched

Effective date: 19901025

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19911023

REF Corresponds to:

Ref document number: 68764

Country of ref document: AT

Date of ref document: 19911115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3865773

Country of ref document: DE

Date of ref document: 19911128

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026696

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19930720

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930731

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19940707

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19940731

Ref country code: CH

Effective date: 19940731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: A&R CARTON AB

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040707

Year of fee payment: 17

Ref country code: FR

Payment date: 20040707

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040715

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040716

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20040719

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20040729

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040925

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050707

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050707

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060201

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20060201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060331

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050708

BERE Be: lapsed

Owner name: *A & R CARTON A.B.

Effective date: 20050731