EP0033266B1 - Verfahren zum Verschliessen, insbesondere für Kunststoff-Verpackung, und nach diesem Verfahren erhaltene undurchlässige Verpackung - Google Patents

Verfahren zum Verschliessen, insbesondere für Kunststoff-Verpackung, und nach diesem Verfahren erhaltene undurchlässige Verpackung Download PDF

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Publication number
EP0033266B1
EP0033266B1 EP81400071A EP81400071A EP0033266B1 EP 0033266 B1 EP0033266 B1 EP 0033266B1 EP 81400071 A EP81400071 A EP 81400071A EP 81400071 A EP81400071 A EP 81400071A EP 0033266 B1 EP0033266 B1 EP 0033266B1
Authority
EP
European Patent Office
Prior art keywords
container
lid
raised
portions
depressed
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
Application number
EP81400071A
Other languages
English (en)
French (fr)
Other versions
EP0033266A1 (de
Inventor
Patrick Vulliez
Bernard Vulliez
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.)
Vulliez Te Aubervilliers Frankrijk Ste
Original Assignee
D'EXPLOITATION des Ets VULLIEZ Ste
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Filing date
Publication date
Application filed by D'EXPLOITATION des Ets VULLIEZ Ste filed Critical D'EXPLOITATION des Ets VULLIEZ Ste
Publication of EP0033266A1 publication Critical patent/EP0033266A1/de
Application granted granted Critical
Publication of EP0033266B1 publication Critical patent/EP0033266B1/de
Expired 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0206—Removable lids or covers without integral tamper element secured by snapping over beads or projections inside a peripheral U-shaped channel in the mouth of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/0012—Shape of the outer periphery having straight sides, e.g. with curved corners
    • B65D2543/00175—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194—Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00351—Dome-like
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00453—Contact between the container and the lid in a peripheral U-shaped channel of the container
    • B65D2543/00462—Contact between the container and the lid in a peripheral U-shaped channel of the container peripheral U-shaped channel of the lid
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/0062—Groove or hollow bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00731—Groove or hollow bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality

Definitions

  • the invention relates to a crimping process, in particular for a plastic packaging according to the preamble of claim 1, as well as a sealed packaging obtained by this method.
  • Leak-proof plastic packaging made of plastic material is increasingly used, in particular in the food industry, in the form, for example, of trays or pots containing various foods. These packages must have a lid and be sealed.
  • the seal between the container part of the packaging and the lid of the latter is usually done by thermal welding, by high frequency welding or by ultrasound. Such welding processes require expensive machines and require significant and expensive after-sales service. Such costs are only justified for mass production. Furthermore, after the implementation of such welds, opening the packaging presents certain difficulties. It is then necessary to use scissors or knives.
  • document FR-A-2 086 376 discloses a dimensioning of a cover so that the side wall (23) comes into contact with the wall (28) with the surface (40) in a relation of tight fit.
  • document FR-A-294 613 describes a single or double wall container closed by a single or double wall cover, the latter possibly being in the form of a groove or even in a loop.
  • the object of the invention is therefore to provide a process which can be used in particular for carrying out. sealing packaging in plastic material, which is easy to implement, which requires simple tools and which is reliable.
  • the invention must also provide a process making it possible to bring into play the elasticity and the plasticity of the plastic material of the packaging, plasticity which allows this material to elongate and successively shrink, in particular at the level raised and recessed parts.
  • the process of the invention is of the type previously defined and is characterized in that the raised parts and the hollow parts are given the profile of an open loop, the narrow part of which is located at the surfaces of the cover and of the container, so as to allow an elongation and a successive withdrawal of the raised and hollow parts of the cover and of the container facilitating crimping and tight locking.
  • a hollow and raised shape is given over the entire periphery of the abovementioned surfaces of the container and of the lid.
  • an elbow is produced in the part of the cover located in the vicinity of its surface to be assembled with the container and between this surface and the remaining part of the cover.
  • the crimping process of the invention can be completed by using one of the following types of welding: thermal welding, high frequency welding, ultrasonic or self-bonding.
  • the method will be implemented using separate materials for the container and for the cover having between them differences in hardness or stiffness and ductility.
  • a plastic material chosen from a polymer of the polystyrene type for the container and of the polypropylene type for the lid will be used.
  • the invention also relates to the packaging made of plastic material obtained by the above method.
  • the packaging of the invention is of the type comprising a cover element and a container element, each comprising surfaces facing each other and coming into contact with one another during the assembly of the two elements, at least a portion of one of the above-mentioned surfaces of the lid or of the container is provided with a raised portion, and a corresponding portion of the other of the two above-mentioned surfaces is provided with a recessed portion, the two aforementioned portions having substantially identical profiles, in particular in the form of a groove, said dimensions of the raised parts being slightly greater or less than those of the hollow parts, characterized in that the raised parts and the hollow parts have open loop profiles, the narrow part is located at the aforementioned surfaces of the lid and of the container, so as to allow an elongation and a successive withdrawal of the raised and hollow parts of the lid and of the container facilitating crimping and sealing.
  • FIG. 1 a plastic package comprising a container-forming element 1 of the tray type.
  • a cover element 2 is intended to seal the container 1.
  • the container 1 has a relatively wide upper rim, which comprises a substantially horizontal part delimiting a surface 3 and which is possibly limited by a side wall 9.
  • the surface 3 is intended to come into contact with a corresponding surface 4 of the cover 2 ,. when the latter is assembled with the container; this surface 4 can also correspond to a substantially horizontal part of a rim of the cover 2, of profile substantially identical to that of the rim of the container.
  • the edge of the cover may also be limited by a side wall 10.
  • the method of the invention therefore consists in producing, for example, on at least part of the surface 3 a hollow shape and on at least a corresponding part of the surface 4 a relief shape.
  • These surfaces therefore have the appearance illustrated by FIGS. 1 and 2.
  • the hollow and raised parts will preferably have substantially identical profiles, in particular in the form of a groove, the dimensions of the raised part being slightly greater than those of the hollow part. By way of example, the differences between the dimensions will be of the order of a few hundredths to a few tenths of a millimeter.
  • the surface 3 of the container has a hollow part 5 whose profile corresponds to an open loop whose narrow or open part is located at this surface 3.
  • the surface 4 of the cover is provided with a raised part 6 having a profile substantially identical to that of the hollow part 5 of the container.
  • the recessed 5 and raised 6 parts extend over the entire length of the respective flanges of the container 1 and of the cover 2. In such a case, the seal of the closure is maximum.
  • the assembly of the lid and the container is done in the following very simple manner.
  • the cover and the container are superimposed so as to match the hollow parts and the raised parts.
  • Pressure is then exerted in the direction of the arrows in FIG. 1.
  • the raised portion in the form of a loop 6 therefore passes by force into the loop 5.
  • the lid is locked on the container and they occupy the respective positions illustrated in FIG. 2.
  • the invention makes it possible to implement, in this way, a crimping process which brings into play the elasticity and the plasticity of the plastic material of the packaging, plasticity which allows this material to be successively elongated and withdrawn, in particular at level of the raised and hollow parts.
  • the container and the cover will be produced in two separate materials having differences in hardness or stiffness and in ductility.
  • the container can be made of a polymer of the polystyrene type and the cover of a polymer of the polypropylene type. These differences in the physical properties of the materials will facilitate the implementation of the crimping process, in particular the insertion of the raised parts in the hollow parts.
  • the implementation of the method of the invention is done without requiring complicated tools. It will thus be possible to use any press of known type.
  • the crimping can even be done manually using an extremely simple tool of the type comprising a support on which one makes rest the container and a cooperating element which can be adapted to the raised parts of the cover and which makes it possible to exert pressure.
  • the method of the invention could be implemented by giving the raised part dimensions slightly smaller than the dimensions of the hollow part, the raised part being inserted into the hollow part by force with passage of a hard point.
  • This hard point will be obtained by giving an adequate configuration to the raised part or to the hollow part.
  • the raised and recessed portions could be given the loop configuration illustrated in Figures 1 and 2, the respective dimensions of said portions being of course reversed.
  • the hard point would be constituted by the narrow part 11 of the loop 5. With the application of pressure, the raised part would therefore force the hard point 11 and would then be locked in the hollow part .
  • the invention also applies to the packaging obtained by the process which has just been described.
  • the cover will be given dimensions slightly smaller than those of the container, in particular for at least some of the parts of the cover which are in contact with the container when the cover is locked to the container.
  • the invention obviously relates to both the method using the differences in dimensions mentioned above and the packaging obtained by this method.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Closing Of Containers (AREA)

Claims (13)

1. Versickungsverfahren insbesondere für die Befestigung eines Deckels (2) auf einem Verpackungsbehälter (1) aus Kunststoff, welches darin besteht, mit Gewalt einen erhabenen Teil (6) in einen vertieften Teil (5) einzusetzen, den Deckel und den Behälter Übereinander zu legen bei gegenseitiger Deckung der vertieften und erhabenen Teile, um den Deckel und den Behälter dicht miteinander zu verriegeln, wobei diese Teile etwa gleiche insbesondere nutenförmige Profile haben, wobei der besagte erhabene Teil etwas grössere oder kleinere Abmessungen als die Abmessungen des vertieften Teiles hat, dadurch gekennzeichnet, dass man den erhabenen Teilen (6) und den vertieften Teilen (5) das Profil einer offenen Schleife gibt, dessen enger Teil in der Höhe der Flächen des Deckels und des Behälters liegen, um ein aufeinanderfolgendes, das Versicken und ein dichtes Verriegeln erleichtendes Dehnen und Schrumpfen der erhabenen und vertieften Teile des Deckels und des Behälters zu ermöglichen.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man eine vertiefte (5) und eine erhabene Gestalt (6) über den ganzen Umfang der vorgenannten Flächen (3; 4) des Behälters (1) und des Deckels (2) gibt.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass man eine Kröpfung (7) in demjenigen Teil des Deckels (2) der in dem Bereich seiner mit dem Behälter (1) zusammenzufügenden Fläche (4) liegt und zwischen dieser Fläche und dem übrigen bzw. mittleren Teil des Deckels (2) herstellt.
4. Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass man ausserdem eine der folgenden Schweissarten durchführt: Wärmeschweissung, Hochfrequenzschweissung, Ultraschallschweissung oder durch Selbsthaften.
5. Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass man für den Deckel und den Behälter unterschiedliche, zwischen sich Unterschiede in der Härte bzw. Steifigkeit und Streckbarkeit aufweisende Werkstoffe verwendet.
6. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass man einen unter einem Polymer der Polypropylenart für den Deckel und der Polystryrolart für den Behälter gewählten Kunststoff verwendet.
7. Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass man dem Deckel etwas kleinere Abmessungen als diejenigen des Behälters insbesondere für wenigstens einige der Teile des Deckels, die mit dem Behälter in Berührung sind, wenn der Deckel mit dem Behälter verriegelt ist, gibt, wobei der Deckel sich mit Gewalt an den Behälter in der Höhe der vorgenannten Teile anschmiegen kann.
8. Dichte Kunststoffepackung der Gattung mit einem deckelbildenden Element (2) und einem behälterbildenden Element (1), wobei jedes einander zugewandte und bei dem Zusammenfügen der beiden Elemente miteinander in Berührung kommende Flächen aufweist, wobei wenigstens ein Abschnitt einer der vorgenannten Flächen des Deckels bzw. des Behälters mit einem erhabenen Teil (6) und ein entsprechender Abschnitt der anderen der beiden vorgenannten Flächen mit einem vertieften Teil (5) versehen ist, wobei beide vorgenannten Teile etwa gleiche insbesondere nutenförmige Profile haben, wobei die besagten Abmessungen der erhabenen Teile etwas grösser oder kleiner als diejenigen der vertieften Teile sind, dadurch gekennzeichnet, dass die erhabenen teile (6) und die vertieften Teile (5) offene Schleifenprofile haben, dessen enger Teil in der Höhe der vorgenannten Flächen (4; 3) des Deckels (2) und des Behälters (1) liegt, um ein aufeinanderfolgendes, das Versicken und das dichte Verriegeln erleichtendes Dehnen und Schrumpfen der erhabenen und vertieften Teile des Deckels und des Behälters zu ermöglichen.
9. Verpackung nach Anspruch 8, dadurch gekennzeichnet, dass die erhabenen (6) und vertieften Teile (5) sich über die gesamten Umfänge der vorgenannten Flächen (3 ; 4) des Behälters (1) und des Deckels (2) erstrecken.
10. Verpackung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass der im Bereich der mit dem Behälter (1) zusammenzufügenden Fläche und zwischen dieser Fläche und dem übrigen bzw. mittleren Teil des Deckels (2) liegende Deckelteil eine Kröpfung (7) aufweist.
11. Verpackung nach irgendeinem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass der Deckel und der Behälter aus unterschiedlichen, untereinander Unterschiede in der Härte bzw. Steifigkeit und Streckbarkeit aufweisenden Werkstoffe bestehen.
12. Verpackung nach Anspruch 11, dadurch gekennzeichnet, dass der Deckel aus einem unter einem Polymer der Polypropylenart gewählten Kunststoff und dass der Behälter aus einem unter einem Polymer der Polystryrolart gewählten Kunststoff besteht.
13. Verpackung nach irgendeinem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass der Deckel etwas kleinere Abmessungen als diejenigen des Behälters hat, insbesondere für wenigstens einige der Teile des Deckels, die mit dem Behälter in Berührung sind, wenn der Deckel mit dem Behälter verriegelt ist, wobei der Deckel somit fähig ist, sich mit Gewalt an den Behälter in der Höhe der vorgenannten Teile anzuschmiegen.
EP81400071A 1980-01-23 1981-01-20 Verfahren zum Verschliessen, insbesondere für Kunststoff-Verpackung, und nach diesem Verfahren erhaltene undurchlässige Verpackung Expired EP0033266B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001434A FR2473995A1 (fr) 1980-01-23 1980-01-23 Procede de sertissage, notamment pour emballage plastique, et emballage etanche obtenu par ce procede
FR8001434 1980-01-23

Publications (2)

Publication Number Publication Date
EP0033266A1 EP0033266A1 (de) 1981-08-05
EP0033266B1 true EP0033266B1 (de) 1986-07-30

Family

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Family Applications (1)

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EP81400071A Expired EP0033266B1 (de) 1980-01-23 1981-01-20 Verfahren zum Verschliessen, insbesondere für Kunststoff-Verpackung, und nach diesem Verfahren erhaltene undurchlässige Verpackung

Country Status (4)

Country Link
EP (1) EP0033266B1 (de)
DE (1) DE3175008D1 (de)
ES (1) ES265210Y (de)
FR (1) FR2473995A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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ITRM20070568A1 (it) * 2007-10-29 2009-04-30 Ugo Nevi Piatti di materiale plastico chiudibili.
JP5255662B2 (ja) * 2011-02-01 2013-08-07 厚木プラスチック株式会社 開封検出可能な包装用容器
CN102963595A (zh) * 2012-12-08 2013-03-13 张家港市天江精密模具制造有限公司 密封型食品包装盒
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Also Published As

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EP0033266A1 (de) 1981-08-05
DE3175008D1 (en) 1986-09-04
FR2473995A1 (fr) 1981-07-24
ES265210U (es) 1983-02-16
ES265210Y (es) 1983-08-01
FR2473995B1 (de) 1983-08-12

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