EP0333605B1 - Aus einem dünnen gefalteten Zuschnitt hergestellte Verpackung mit Verstärkung der Schweissstellen - Google Patents

Aus einem dünnen gefalteten Zuschnitt hergestellte Verpackung mit Verstärkung der Schweissstellen Download PDF

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Publication number
EP0333605B1
EP0333605B1 EP89420090A EP89420090A EP0333605B1 EP 0333605 B1 EP0333605 B1 EP 0333605B1 EP 89420090 A EP89420090 A EP 89420090A EP 89420090 A EP89420090 A EP 89420090A EP 0333605 B1 EP0333605 B1 EP 0333605B1
Authority
EP
European Patent Office
Prior art keywords
folds
blank
folded
welds
plastic
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
EP89420090A
Other languages
English (en)
French (fr)
Other versions
EP0333605A1 (de
Inventor
Gilbert Capy
Jean-Luc Allain
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.)
WRAPCO INTERNATIONAL N.V. TE PISCADERA BAY, NEDERL
Original Assignee
Gilbert Capy
Jean-Luc Allain
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
Priority claimed from FR8803654A external-priority patent/FR2628719B2/fr
Application filed by Gilbert Capy, Jean-Luc Allain filed Critical Gilbert Capy
Priority to AT89420090T priority Critical patent/ATE84273T1/de
Publication of EP0333605A1 publication Critical patent/EP0333605A1/de
Application granted granted Critical
Publication of EP0333605B1 publication Critical patent/EP0333605B1/de
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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/10—Wrappers or flexible covers rectangular
    • B65D65/12—Wrappers or flexible covers rectangular formed with crease lines to facilitate folding
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • 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
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/30—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D2585/36—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products
    • B65D2585/363—Containers, packaging elements or packages specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for biscuits or other bakery products specific products
    • B65D2585/366—Pizza

Definitions

  • the present invention relates to a packaging for a convex shape obtained from a pleated thin sheet of the kind described in French patent application FR-A-2 595 666, and it relates more particularly to the method of fixing the plies together. .
  • the preambles of claims 1 and 2 are based on this state of the art.
  • This type of paper is generally used in combination with a layer of plastic material, which coats one of its faces, and which gives it a certain number of additional properties such as the solidity, the water and fat tightness.
  • the layer of plastic material can consist for example of polyethylene which is hot deposited by extrusion through a die, but the plastic material can also be brought in the form of a thin film which is fixed by gluing to the paper.
  • it is a polyethylene and paper complex and that it is pleated, as indicated in said patent application, there is between two successive plies on one side a paper side against a paper side, and the other side a coated side against a coated side.
  • the object of the invention is to provide solutions to this welding problem in order either to reduce the forces which are supported by the welded part of the fold, or to transfer them partially elsewhere, or to make a combination of the two. This object is achieved by the two embodiments according to claims 1 and 2.
  • Fig. 1 of the folds (2) One way of reducing the forces supported by the welds (1) Fig. 1 of the folds (2) is to size the packaging, according to said patent, so that during assembly the tensions remain low. This is obtained by the shape of the folds (2) combined with the distance (3) between the welds (1). If the packaging is correctly adjusted according to the terms of the said patent, we note in particular that having deployed the pleating around the convex object to be packaged, we experience difficulties when, having made a complete revolution of the convex object , we proceed to overlapping of the first layer by the second because the volume has changed, it has increased in the thickness of the packaging itself.
  • the part (4) Fig.2 of the packaging which is mounted last has a distance (5) between the welds (6) and (7) greater than the distance (8) between welds (6) and (7) the part (9) which mounts first.
  • One way to do this is to vary the spacing of the welds (6) and (7) between the start (9) and the end (4) of the package. When the welds are straight, a variation of 5 to 15% of the spacing allows an acceptable result to be obtained. It is desirable to identify the direction of assembly of the packaging, and therefore provide a tongue (10) which also serves as an application point for the fingers at the time of assembly.
  • the attached sheet (12) is a strip projecting sufficiently on each side of the weld (15) so that the forces imparted to the weld (15) are not fully transmitted to the edge of the strip (12) which could cause it to tear .
  • This pre-sealing can be done at the time of pressing the plies, as long as the pressing cylinder has heated and temperature-controlled zones.
  • This type of fixing of the folds by folding the edges does not make it possible to have, beyond the weld (23) and the edge (25), a zone called “C” in the said patent application premising the recovery of the central surface of the convex body to be covered and delimited by the weld (23) of the folds (24).
  • distance "M" (26) between the welds (23), the value of which is determined, in said patent application, as a function of the main dimensions of the convex object to be packaged, the distance between the edges ( 25).
  • edges (28) Fig.6 so as to increase the distance "M" (29) between the edges (30) from the start (31) to the end (32) of the pleated packaging.
  • the folding of the edges (28) being substantially rectilinear, it is preferable that the cutting is made to give the pleated packaging before folding the edges and welding the shape of a trapezoid. Otherwise we would be left with an excess of paper, turned inside out, which could disturb the assembly. In the latter case, there is a crossover of the folds at the time of welding, which is favorable to the solidity of the fixing.

Landscapes

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

Claims (3)

  1. Verpackung für einen Gegenstand konvexer Form, bestehend aus einem dünnen, parallel zu deren Breite gefalteten und aus einer Verbindung aus Papier und Kunststoff bestehenden Zuschnitt, wobei die Falten (2) in der Nähe ihrer Seitenenden entlang zweier schmaler Bereiche miteinander verschweißt sind, dadurch gekennzeichnet, daß der Zuschnitt an mindestens einer Schweißstelle an den Faltenenden eine Verstärkung aus einem aus einer Verbindung aus Papier und Kunststoff bestehenden, nicht gefalteten Streifen besitzt, der in dem zu verstärkenden Bereich beim Schweißen der Falten auf den gefalteten Zuschnitt geschweißt wird, wobei die Kunststoffschicht des Verstärkungsstreifens an die Kunststoffschicht des gefalteten Zuschnittes anliegt, sodaß eine direkte Berührung zwischen den Schweißelektroden und der Kunststoffschicht verhindert wird.
  2. Verpackung für einen Gegenstand konvexer Form, bestehend aus einem dünnen, parallel zu deren Breite gefalteten und aus einer Verbindung aus Papier und Kunststoff bestehenden Zuschnitt, wobei die Falten (18) in der Nähe ihrer Seitenenden entlang zweier schmaler Bereiche miteinander verschweißt sind, dadurch gekennzeichnet, daß der Zuschnitt an mindestens einer Schweißstelle an den Faltenenden eine Verstärkung aus einem schmalen Längsstreifen des gefalteten und so umgelegten Streifens besitzt, daß die Kunststoffschicnten sich jeweils berühren, wobei der Streifen derart an den Zuschnitt geschweißt wird, daß die Schweißkante (20) selbst von der Schweißung betroffen ist und somit beim Zusammenbauen der Verpackung ein Element zum Blockieren der Falten bildet.
  3. Verpackung nach einem der Patentansprüche 1 und 2, dadurch gekennzeichnet, daß der Abstand zwischen den beiden schmalen Streifen, entlang derer die Falten miteinander verschweißt sind, zwischen den in Längsrichtung gesehenen Enden des Zuschnittes um 5 - 15 % zunehmen, um deren Zusammenbau um den zu verpackenden Gegenstand zu erleichtern.
EP89420090A 1988-03-16 1989-03-13 Aus einem dünnen gefalteten Zuschnitt hergestellte Verpackung mit Verstärkung der Schweissstellen Expired - Lifetime EP0333605B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420090T ATE84273T1 (de) 1988-03-16 1989-03-13 Aus einem duennen gefalteten zuschnitt hergestellte verpackung mit verstaerkung der schweissstellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803654A FR2628719B2 (fr) 1986-03-17 1988-03-16 Procede de renforcement des soudures d'un emballage obtenu a partir d'une feuille mince plissee
FR8803654 1988-03-16

Publications (2)

Publication Number Publication Date
EP0333605A1 EP0333605A1 (de) 1989-09-20
EP0333605B1 true EP0333605B1 (de) 1993-01-07

Family

ID=9364464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420090A Expired - Lifetime EP0333605B1 (de) 1988-03-16 1989-03-13 Aus einem dünnen gefalteten Zuschnitt hergestellte Verpackung mit Verstärkung der Schweissstellen

Country Status (5)

Country Link
EP (1) EP0333605B1 (de)
JP (1) JP2573522B2 (de)
AT (1) ATE84273T1 (de)
DE (1) DE68904219T2 (de)
ES (1) ES2037988T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595666B1 (fr) * 1986-03-17 1988-05-13 Capy Gilbert Emballage pour forme convexe obtenu a partir d'une feuille mince plissee
US5125564A (en) * 1990-10-26 1992-06-30 Akiva Buchberg Pleated packaging wrapper for objects
DE10332781B4 (de) * 2003-07-17 2007-05-10 Volker Barkey Hülle aus Folienmaterial, insbesondere zum Schutz von medizinischen Geräten, und Verfahren zu deren Herstellung
CN100348463C (zh) * 2004-01-09 2007-11-14 伊藤火腿株式会社 物品包装单体的连接体

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951019A (en) * 1932-06-24 1934-03-13 Albert F Hoffman Bottle wrapper
DE7036214U (de) * 1970-09-30 1971-01-07 Frank J Clemens Verpackungsmaterial.
DE2714510A1 (de) * 1976-04-06 1977-10-20 Pittacus Sa Kunststoffolie, insbesondere aus dehnbarem weichkunststoff zu verpackungszwecken und vorrichtung zu deren herstellung
FR2595666B1 (fr) * 1986-03-17 1988-05-13 Capy Gilbert Emballage pour forme convexe obtenu a partir d'une feuille mince plissee

Also Published As

Publication number Publication date
EP0333605A1 (de) 1989-09-20
JPH01294458A (ja) 1989-11-28
DE68904219D1 (de) 1993-02-18
DE68904219T2 (de) 1993-06-09
ATE84273T1 (de) 1993-01-15
JP2573522B2 (ja) 1997-01-22
ES2037988T3 (es) 1993-07-01

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