EP0033266A1 - Sealing method, particularly for plastic packaging, and hermetic package obtained by this method - Google Patents

Sealing method, particularly for plastic packaging, and hermetic package obtained by this method Download PDF

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Publication number
EP0033266A1
EP0033266A1 EP81400071A EP81400071A EP0033266A1 EP 0033266 A1 EP0033266 A1 EP 0033266A1 EP 81400071 A EP81400071 A EP 81400071A EP 81400071 A EP81400071 A EP 81400071A EP 0033266 A1 EP0033266 A1 EP 0033266A1
Authority
EP
European Patent Office
Prior art keywords
container
cover
lid
raised
hollow
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
EP81400071A
Other languages
German (de)
French (fr)
Other versions
EP0033266B1 (en
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.)
SOCIETE VULLIEZ TE AUBERVILLIERS, FRANKRIJK.
Original Assignee
D'EXPLOITATION des Ets VULLIEZ Ste
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Filing date
Publication date
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Publication of EP0033266A1 publication Critical patent/EP0033266A1/en
Application granted granted Critical
Publication of EP0033266B1 publication Critical patent/EP0033266B1/en
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 method, in particular for a plastic packaging, 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 cover 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.
  • the object of the invention is therefore to provide a process which can be used in particular for the sealing of plastic packaging, which is easy to implement, which requires simple tools and which is reliable.
  • the method of the invention is a crimping method in particular for fixing a cover to a packaging container made of plastic material, characterized in that it consists in producing on at least part of one of the surfaces to be assembled and facing the cover or the container, a relief shape and on at least a corresponding part of the other of the two above-mentioned surfaces a hollow shape; giving the raised and recessed portions an orientation and a profile such that the raised portion can be forced into the recessed portion; to superimpose the cover and the container by matching lay the hollow and raised parts and apply pressure to push the raised part into the hollow part, by force to tightly lock the lid and the container.
  • the method is implemented by giving the hollow and raised parts 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.
  • the raised and / or hollow parts are given the profile of an open loop, the narrow part of which is located at the abovementioned surfaces of the lid and of the container.
  • 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 further implementing one of the following types of welding: thermal welding, high frequency welding, ultrasonic or self-bonding.
  • the method will be implemented using separate mate- r ials for the container and for the lid having them differences in hardness or stiffness and ductility.
  • mate- r ials for the container and for the lid having them differences in hardness or stiffness and ductility.
  • we used- ra a plastic material selected from a polymer of the polystyrene type for the container, of the polypropylene type for the lid.
  • the invention also relates to the packaging made of plastic material obtained by the above method.
  • the package of the invention is of the type comprising a lid member and a container member comprising each of surfaces facing each other and coming into contact with one another when assembled bl age of two elements; this packaging is characterized in that at least a portion of one of the abovementioned surfaces of the lid or of the container is provided with a raised part; in that a corresponding portion of the other of the two aforementioned surfaces is provided with a recessed portion, said recessed or raised portions having an orientation and a profile such that when the lid is applied sealingly to the container , the raised parts are forced into the hollow parts.
  • 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 larger. res to those of the hollow part. For exam- p l e, 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.
  • This bend has the advantage of improving the seal and giving greater elasticity to the cover, in particular at its horizontal rim, which thus facilitates subsequent crimping of this cover with the container.
  • 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 Figure 2.
  • the invention thus makes it possible to implement, in this way, a crimping process which brings into play the elasticity and plasticity of the plastic material of the packaging, plasticity which allows this material to be successively elongated and withdrawn, in particular at the raised and recessed portions.
  • the container and the cover will be produced from 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 the container is made to rest and a cooperating element which can be adapted to the raised parts of the cover and making it possible to exert pressure.
  • the method of the invention could be implemented by giving the raised part slightly smaller dimensions 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 or hollow part.
  • 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 forcefully pass the hard point 11 and would then be locked in the part hollow.
  • the invention also applies to the packaging obtained by the process which has just been described.
  • the sealing of the packaging can be increased by adjusting the dimensions of the cover and the container.
  • 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 lid may forcefully marry the periphery of the container. This tightening in force will occur particularly on the part 8, closest to the interior of the container, the internal surface of the loop 5 and on the wall 9 of the rim of the container.
  • the invention obviously relates to both the method using the differences in dimensions mentioned above and the packaging obtained by this method.

Abstract

1. Method of crimping in particular for the fastening of a lid (2) onto a packing container (1) of plastics material, consisting in forcing a raised portion (6) into a depressed portion (5), superimposing the lid and the container while causing the depressed and raised portions to mate for tightly interlocking the lid and the container, these portions having substantially identical in particular groove-shaped profiles, the said raised portion having dimensions slightly higher or lower than the dimensions of the depressed portion, characterized in that the raised portions (6) and the depressed portions (5) are given the profile of an open loop the narrow part of which is located at the level of the lid and container surfaces, so as to make possible an elongation and a shrinking in succession of the raised and depressed portions of the lid and of the container facilitating the crimping and a tight interlocking.

Description

L'invention concerne un procédé de sertissage, notamment pour un emballage en matériau plastique, ainsi qu'un emballage étanche obtenu par ce procédé.The invention relates to a crimping method, in particular for a plastic packaging, as well as a sealed packaging obtained by this method.

Les emballages plastiques étanches en matériau plastique sont de plus en plus couramment employés, en particulier dans l'industrie alimentaire, sous la forme, par exemple, de barquettes ou de pots contenant des aliments divers. Ces emballages doivent être munis d'un couvercle et fermés d'une manière étanche.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.

L'étanchéité entre la partie formant récipient de l'emballage et le couvercle de celui-ci se fait habituellement par soudure thermique, par soudure à hautes fréquences ou par ultrason. De tels procédés de soudure demandent des machines coûteuses et nécessitent un service après vente important et onéreux. De tels frais ne sont justifiés que pour une fabrication en très grande série. Par ailleurs, après la mise en oeuvre de telles soudures, l'ouverture de l'emballage présente des difficultés certaines. Il est nécessaire d'utiliser alors des ciseaux ou des couteaux.The seal between the container part of the packaging and the cover 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.

Afin d'éliminer ces inconvénients, on a essayé de réaliser la fermeture et l'étanchéité des emballages par auto-collage, c'est-à-dire un procédé du genre de celui utilisé pour la fermeture des enveloppes. Cependant, un tel procédé comporte aussi plusieurs inconvénients. Tout d'abord, le collage peut se révéler de mauvaise qualité si une partie du produit emballé se dépose accidentellement sur une partie auto-collante de l'emballage. D'autre part, il est difficile pour la personne manipulant ou utilisant ces emballages de coller correctement le couvercle sur le récipient sans une machine ou un outillage adéquat. En outre, on peut observer un durcissement des colles après plusieurs mois suivant la fabrication de l'emballage. Enfin, à ce jour, les colles autocollantes pour plastique utilisables dans l'industrie alimentaire ne sont pas encore vraiment au point.In order to eliminate these drawbacks, attempts have been made to close and seal the packages by self-adhesive, that is to say a process of the type used for closing the envelopes. However, such a method also has several drawbacks. First of all, the bonding may turn out to be of poor quality if part of the packaged product accidentally deposits on a self-adhesive part of the packaging. On the other hand, it is difficult for the person handling or using these packages to correctly adhere the lid to the container without a machine or adequate tools. In addition, a hardening of the adhesives can be observed after several months following the manufacture of the packaging. Finally, to date, the adhesive adhesives for plastic usable in the food industry are not yet really developed.

L'objet de l'invention est donc de procurer un procédé qui puisse être utilisé notamment pour la réalisation de l'étanchéité d'emballages en matériau plastique, qui soit facile à mettre en oeuvre, qui nécessite un outillage simple et qui soit fiable.The object of the invention is therefore to provide a process which can be used in particular for the sealing of plastic packaging, which is easy to implement, which requires simple tools and which is reliable.

Le procédé de l'invention est un procédé de sertissage notamment pour la fixation d'un couvercle sur un récipient d'emballage en matériau plastique caractérisé en ce qu'il consiste à réaliser sur au moins une partie de l'une des surfaces à assembler et se faisant face du couvercle ou du récipient une forme en relief et sur au moins une partie correspondante de l'autre des deux surfaces précitées une forme en creux; à donner aux parties en relief et en creux une orientation et un profil tels que la partie en relief puisse être insérée à force dans la partie en creux; à superposer le couvercle et le récipient en faisant correspondre les parties en creux et en relief et à exercer une pression pour enfoncer la partie en relief dans la partie en creux, à force pour verrouiller de manière étanche le couvercle et le récipient.The method of the invention is a crimping method in particular for fixing a cover to a packaging container made of plastic material, characterized in that it consists in producing on at least part of one of the surfaces to be assembled and facing the cover or the container, a relief shape and on at least a corresponding part of the other of the two above-mentioned surfaces a hollow shape; giving the raised and recessed portions an orientation and a profile such that the raised portion can be forced into the recessed portion; to superimpose the cover and the container by matching lay the hollow and raised parts and apply pressure to push the raised part into the hollow part, by force to tightly lock the lid and the container.

Selon un mode de réalisation de l'invention, le procédé est mis en oeuvre en donnant aux parties en creux et en relief des profils sensiblement identiques, notamment en forme de gorge, les dimensions de la partie en relief étant légèrement supérieures à celles de la partie en creux.According to one embodiment of the invention, the method is implemented by giving the hollow and raised parts 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.

Selon un autre mode de réalisation, on donne aux parties en relief et/ou en creux le profil d'une boucle ouverte dont la partie étroite est située au niveau des surfaces précitées du couvercle et du récipient.According to another embodiment, the raised and / or hollow parts are given the profile of an open loop, the narrow part of which is located at the abovementioned surfaces of the lid and of the container.

Selon un mode de réalisation particulier de la présente invention, on donne une forme en creux et en relief sur l'ensemble du pourtour des surfaces précitées du récipient et du couvercle.According to a particular embodiment of the present invention, a hollow and raised shape is given over the entire periphery of the abovementioned surfaces of the container and of the lid.

Selon un autre mode de réalisation de l'invention, on réalise un coude dans la partie du couvercle située au voisinage de sa surface à assembler avec le récipient et entre cette surface et la partie restante du couvercle.According to another embodiment of the invention, 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.

Par ailleurs, on pourra compléter le procédé de sertissage de l'invention en mettant en oeuvre en outre un des types suivants de soudure : soudure thermique, soudure à hautes fréquences, à ultrason ou par auto-collage.Furthermore, the crimping process of the invention can be completed by further implementing one of the following types of welding: thermal welding, high frequency welding, ultrasonic or self-bonding.

Selon un mode de réalisation préféré de l'invention, le procédé sera mis en oeuvre en utilisant des maté- riaux distincts pour le récipient et pour le couvercle présentant entre eux des différences de dureté ou rigidité et de ductilité. En particulier, on utilise- ra un matériau plastique choisi parmi un polymère du type polystyrène pour le récipient, du type polypropylène pour le couvercle.According to a preferred embodiment of the invention, the method will be implemented using separate mate- r ials for the container and for the lid having them differences in hardness or stiffness and ductility. In particular, we used- ra a plastic material selected from a polymer of the polystyrene type for the container, of the polypropylene type for the lid.

L'invention concerne aussi l'emballage en matériau plastique obtenu par le procédé précité. L'emballage de l'invention est du type comportant un élément formant couvercle et un élément formant récipient comprenant chacun des surfaces se faisant face et venant en contact l'une de l'autre lors de l'assem- blage des deux éléments; cet emballage est caractérisé en ce qu'au moins une portion de l'une des surfaces précitées du couvercle ou du récipient est pourvue d'une partie en relief; en ce qu'une portion correspondante de l'autre des deux surfaces précitées est pourvue d'une partie en creux, lesdites parties en creux ou en relief ayant une orientation et un profil tels que lorsque le couvercle est appliqué de façon étanche sur le récipient, les parties en relief sont insérées à force dans les parties en creux.The invention also relates to the packaging made of plastic material obtained by the above method. The package of the invention is of the type comprising a lid member and a container member comprising each of surfaces facing each other and coming into contact with one another when assembled bl age of two elements; this packaging is characterized in that at least a portion of one of the abovementioned surfaces of the lid or of the container is provided with a raised part; in that a corresponding portion of the other of the two aforementioned surfaces is provided with a recessed portion, said recessed or raised portions having an orientation and a profile such that when the lid is applied sealingly to the container , the raised parts are forced into the hollow parts.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaltront plus clairement au cours de la descrip- tion explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • La figure 1 est une vue en coupe d'un emballage selon l'invention, avant l'assemblage de l'élément formant couvercle avec l'élément formant récipient.
  • La figure 2 est une vue en coupe de l'emballage selon l'invention,l'élément formant couvercle étant assemblé avec l'élément formant récipient.
The invention will be better understood and other objects, features, and advantages of this has pparaltront more clearly in the description are explanatory ti which follows with reference to the accompanying schematic drawings given by way of example illustrating an embodiment of the invention and in which:
  • Figure 1 is a sectional view of a package according to the invention, before assembly of the forming element cover with container element.
  • Figure 2 is a sectional view of the packaging according to the invention, the cover member being assembled with the container member.

La description qui va suivre concerne plus particulièrement le dispositif d'emballage de l'invention, mais les caractéristiques du procédé pour la réalisation de cet emballage en découlent d'une manière évidente. En se référant aux figures 1 et 2,on peut voir un emballage plastique comportant un élément formant récipient 1 du type barquette. Un élément formant couvercle 2 est destiné à fermer d'une manière étanche le récipient 1. Le récipient 1 comporte un rebord supérieur relativement large,qui comprend une partie sensiblement horizontale délimitant une surface 3 et qui est éventuellement limitée par une paroi latérale 9. La surface 3 est destinée à venir en contact avec une surface correspondante 4 du couvercle 2, lorsque ce dernier est assemblé avec le récipient; cette surface 4 peut,elle aussi,correspondre à une partie sensiblement horizontale d'un rebord du couvercle 2,de profil sensiblement identique à celui du rebord du récipient. Le rebord du couvercle pourra,lui aussi,être limité par une paroi latérale 10.The description which follows relates more particularly to the packaging device of the invention, but the characteristics of the method for producing this packaging are obvious. Referring to Figures 1 and 2, one can see 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.

En vue du sertissage ultérieur,le procédé de l'invention consiste donc à réaliser,par exemple, sur au moins une partie de la surface 3 une forme en creux et sur au moins une partie correspondante de la surface 4 une forme en relief. Ces surfaces présentent donc l'aspect illustré par les figures 1 et 2. Les parties en creux et en relief auront de préférence des profils sensiblement identiques,notamment en forme de gorge,les dimensions de la partie en relief étant légèrement supérisu- res à celles de la partie en creux. A titre d'exem- ple, les différences entre les dimensions seront de l'ordre de quelques centièmes à quelques dixièmes de millimètres. Dans le mode de réalisation illustré, la surface 3 du récipient comporte une partie 5 en creux dont le profil correspond à une boucle ouverte dont la partie étroite ou ouverte est située au niveau de cette surface 3. Par ailleurs, la surface 4 ' du couvercle est pourvue d'une partie en relief 6 ayant un profil sensiblement identique à celui de la partie en creux 5 du récipient. Dans le cas illustré par les figures, les parties en creux 5 et en relief 6 s'étendent sur toute la longueur des rebords respectifs du récipient 1 et du couvercle 2. Dans un tel cas, l'étanchéité de la fermeture est maximale.With a view to subsequent crimping, 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 larger. res to those of the hollow part. For exam- p l e, the differences between the dimensions will be of the order of a few hundredths to a few tenths of a millimeter. In the illustrated embodiment, 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. Furthermore, 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. In the case illustrated by the figures, 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.

On pourra avantageusement munir le couvercle d'un coude 7 dans la partie située au voisinage du rebord portant la surface 4 et entre ce rebord ou cette surface et la partie restante ou centrale du couvercle.It is advantageously possible to provide the cover with an elbow 7 in the part located in the vicinity of the rim carrying the surface 4 and between this rim or this surface and the remaining or central part of the cover.

Ce coude présente l'avantage d'améliorer l'étanchéité et de conférer une plus grande élasticité au couvercle en particulier au niveau de son rebord horizontal ce qui facilite ainsi le sertissage ultérieur de ce couvercle avec le récipient.This bend has the advantage of improving the seal and giving greater elasticity to the cover, in particular at its horizontal rim, which thus facilitates subsequent crimping of this cover with the container.

L'assemblage du couvercle et du récipient se fait de la manière très simple suivante. On superpose le couvercle et le récipient de manière à faire correspondre les parties en creux et les parties en relief. On exerce ensuite une pression dans le sens des flèches de la figure 1. La partie en relief en forme de boucle 6 passe donc à force dans la boucle 5. Après l'application de la pression, le couvercle est verrouillé sur le récipient et ils occupent les positions respectives illustrées par la figure 2. Bien qu'en raison même de la nature du matériau plastique on ne puisse pas travailler celui-ci comme les emballages condi- tionnels en carton, en fer blanc, ou en aluminium, l'invention permet donc de mettre en oeuvre, de cette manière, un procédé de sertissage qui met en jeu l'élasticité et la plasticité du matériau plastique de l'emballage, plasticité qui permet à ce matériau un allongement et un retrait successifs, en particulier, au niveau des parties en relief et en creux.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. After the application of the pressure, the lid is locked on the container and they occupy the respective positions illustrated in Figure 2. Although due even of the nature of the plastic material one cannot work this one like the conditional packaging in cardboard, tinplate, or aluminum, the invention thus makes it possible to implement, in this way, a crimping process which brings into play the elasticity and plasticity of the plastic material of the packaging, plasticity which allows this material to be successively elongated and withdrawn, in particular at the raised and recessed portions.

Selon un mode préféré de l'invention, on réalisera le récipient et le couvercle en deux matériaux distincts présentant entre eux des différences de dureté ou de rigidité et de ductilité. Ainsi, on pourra réaliser le récipient en un polymère du type polystyrène et le couvercle en un polymère du typepolypropylène. Ces différences dans les propriétés physiques des matériaux faciliteront la mise en oeuvre du procédé de sertissage, en particulier l'insertion des parties en relief dans les parties en creux.According to a preferred embodiment of the invention, the container and the cover will be produced from two separate materials having differences in hardness or stiffness and in ductility. Thus, 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.

La mise en oeuvre du procédé de l'invention se fait sans nécessiter un outillage compliqué. On pourra ainsi utiliser toute presse de type connu. Le sertissage peut même se faire manuellement en utilisant un outillage extrêmement simple du type comportant un support sur lequel on fait reposer le récipient et un élément coopérant pouvant s'adapter sur les parties en relief du couvercle et permettant d'exercer la pression.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 the container is made to rest and a cooperating element which can be adapted to the raised parts of the cover and making it possible to exert pressure.

Naturellement, de nombreuses variantes de l'invention sont possibles. En particulier, la description-a été faite en référence à un emballage du type barquette mais il est bien évident que l'on pourrait concevoir des emballages de forme quelconque. Dans le cas illustré les rebords du couvercle et du récipient sont sensiblement horizontaux mais il est évident qu'ils pourraient avoir une orientation différente. D'autre part, on a représenté le cas où le récipient présente une partie en creux par rapport à la surface du rebord faisant face au couvercle mais on pourrait concevoir une disposition inverse dans laquelle cette surface présenterait une partie en relief. Une telle disposition est généralement moins pratique que celle illustrée car au moment de l'assemblage, il faudrait exercer la pression sur le rebord du récipient plutôt que sur celui du couvercle. Néanmoins, un tel cas pourrait être éventuellement envisagé pour des conditions de fabrication ou d'utilisation particulières.Naturally, many variants of the invention are possible. In particular, the description has been made with reference to packaging of the tray type, but it is obvious that packaging of any shape could be designed. In the illustrated case the edges of the lid and the container are substantially horizontal but it is obvious that they could have a different orientation. On the other hand, there is shown the case where the container has a hollow part relative to the surface of the rim facing the cover but one could conceive of a reverse arrangement in which this surface would have a part in relief. Such an arrangement is generally less practical than that illustrated because at the time of assembly, pressure should be exerted on the rim of the container rather than on that of the lid. However, such a case could possibly be envisaged for specific manufacturing or use conditions.

On pourrait aussi se contenter de donner des formes en relief ou en creux que sur une partie seulement des rebords du couvercle et du récipient. Il est aussi évident que l'on pourrait améliorer encore l'étanchéité de l'emballage en prévoyant par exemple deux ou même plusieurs rangées de gorges ou de rainures sur ces rebords. Par ailleurs, bien que l'on préfère réaliser le récipient et le couvercle en deux matériaux différents, il est tout à fait possible de réaliser l'ensemble de l'emballage dans le même matériau plastique.We could also be content to give relief or hollow shapes only on part of the edges of the lid and the container. It is also obvious that the sealing of the packaging could be further improved by providing, for example, two or even several rows of grooves or grooves on these edges. Furthermore, although it is preferred to make the container and the cover in two different materials, it is quite possible to produce the entire package in the same plastic material.

Par ailleurs., on pourrait mettre en oeuvre le procédé de l'invention en donnant à la partie en relief des dimensions légèrement inférieuresaux dimensions de la partie en creux, la partie en relief étant insérée dans la partie en creux à force avec passage d'un point dur. Ce point dur sera obtenu en donnant une configuration adéquate à la partie en relief ou à celle en creux. Par exemple, on pourrait donner aux parties en relief et en creux la configuration en boucle illustrée par les figures 1 et 2, les dimensions respectives desdites parties étant bien sûr inversées. Dans un tel cas, le point dur serait constitué par la partie étroite 11 de la boucle 5. Avec l'application d'une pression, la partie en relief passerait donc à force le point dur 11 et serait.ensuite verrouillée dans la partie en creux.Furthermore, the method of the invention could be implemented by giving the raised part slightly smaller dimensions 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 or hollow part. For example, we could give the raised and recessed parts the loop configuration illustrated in Figures 1 and 2, the dimensions respective of said parts being of course reversed. In such a case, 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 forcefully pass the hard point 11 and would then be locked in the part hollow.

L'invention s'applique aussi à l'emballage obtenu par le procédé qui vient d'être décrit.The invention also applies to the packaging obtained by the process which has just been described.

Enfin, on pourra augmenter l'étanchéité de l'emballage en jouant sur les dimensions du couvercle et du récipient. A cet effet on donnera au couvercle des dimensions légèrement inférieures à celles du récipient, notamment pour au moins certaines des parties du couvercle qui sont en contact avec le récipient quand le couvercle est verrouillé au récipient.Finally, the sealing of the packaging can be increased by adjusting the dimensions of the cover and the container. For this purpose, 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.

A titre indicatif, ces différences de dimensions seront de l'ordre de quelques centièmes à quelques dixièmes de millimètres.As an indication, these differences in dimensions will be of the order of a few hundredths to a few tenths of a millimeter.

Ainsi, si on diminue les dimensions latérales et longitudinales du couvercle, grâce à l'élasticité du matériau qui le forme, celui-ci pourra épouser en force le pourtour du récipient. Ce serrage en force se produira particulièrement sur la partie 8, la plus proche de l'intérieur du récipient, de la surface interne de la boucle 5 et sur la paroi 9 du rebord du récipient.Thus, if the lateral and longitudinal dimensions of the lid are reduced, thanks to the elasticity of the material which forms it, the latter may forcefully marry the periphery of the container. This tightening in force will occur particularly on the part 8, closest to the interior of the container, the internal surface of the loop 5 and on the wall 9 of the rim of the container.

L'invention concerne bien entendu à la fois le procédé mettant en oeuvre les différences de dimensions mentionnées ci-dessus et l'emballage obtenu par ce procédé.The invention obviously relates to both the method using the differences in dimensions mentioned above and the packaging obtained by this method.

Bien entendu, l'invention n'est nullement limitée aux modes de réalisation décrits et représentés qui n'ont été donnés qu'à titre d'exemple. En particulier, elle comprend tous les moyens constituant des équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont exécutées suivant son esprit et mises en oeuvre dans le cadre des revendications qui suivent.Of course, the invention is in no way limited to the embodiments described and shown which have been given only by way of example. In particular, it includes all the means constituting technical equivalents of the means described as well as their combinations if these are carried out according to the spirit and implemented in the context of the claims which follow.

Claims (17)

1.- Procédé de sertissage, notamment pour la fixation d'un couvercle sur un récipient d'emballage en matière plastique, consistant à insérer à force une partie en relief dans une partie en creux, à superposer le couvercle et le récipient en faisant correspondre les parties en creux et en relief pour verrouiller de manière étanche le couvercle et le récipient, ces parties ayant des profils sensiblement identiques notamment en forme de gorge, caractérisé en ce qu'on donne à la partie en relief des dimensions légèrement supérieures à celle de la partie en creux.1.- Crimping method, in particular for fixing a lid on a plastic packaging container, consisting of forcing a raised part into a hollow part, superimposing the lid and the container by matching the hollow and raised parts for sealingly closing the lid and the container, these parts having substantially identical profiles, in particular in the form of a groove, characterized in that the relief part is given dimensions slightly greater than that of the hollow part. 2.- Procédé selon la revendication 1, caractérisé en ce qu'on donne aux parties en relief et/ou en creux le profil d'une boucle ouverte dont la partie étroite est située au niveau des surfaces précitées du couvercle et du récipient.2.- Method according to claim 1, characterized in that the raised and / or hollow parts are given the profile of an open loop whose narrow part is located at the aforementioned surfaces of the lid and the container. 3.- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on donne une forme en creux ou en relief sur l'ensemble du pourtour des surfaces précitées du récipient et du couvercle.3.- Method according to any one of the preceding claims, characterized in that a hollow or relief shape is given over the entire periphery of the aforementioned surfaces of the container and the lid. 4.- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on réalise un coude dans la partie du couvercle située au voisinage de sa surface à assembler avec le récipient et entre cette surface et la partie restante ou centrale du couvercle.4.- Method according to any one of the preceding claims, characterized in that a bend is made in the part of the lid located in the vicinity of its surface to be assembled with the container and between this surface and the remaining or central part of the lid . 5.- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on réalise en outre un des types suivants de soudure : thermique, à hautes fréquences,à ultrason ou par auto-collage.5.- Method according to any one of the preceding claims, characterized in that one also performs one of the following types of welding: thermal, high frequency, ultrasonic or by self-bonding. 6.- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on utilise pour le couvercle et le récipient des matériaux distincts présentant entre eux des différences de dureté ou rigidité et de ductilité.6.- Method according to any one of the preceding claims, characterized in that one uses for the cover and the container separate materials having between them differences in hardness or rigidity and ductility. 7,- Procédé selon la revendication 6, caractérisé en ce qu'on utilise un matériau plastique choisi parmi un polymère du typepolypropylène pour le couvercle, du type polystyrène pour le récipient.7, - Method according to claim 6, characterized in that a plastic material chosen from a polymer of typepolypropylene for the lid, of the polystyrene type for the container, is used. 8.- Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'on donne à la partie en relief des dimensions légèrement inférieures aux dimensions de la partie en creux, la partie en relief étant insérée dans la partie en creux à force avec passage d'un point dur.8.- Method according to any one of claims 1 to 7, characterized in that the relief part is given 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. 9.- Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on donne au couvercle des dimensions légèrement inférieures à celles du récipient, notamment pour au moins certaines des parties du couvercle qui sont en contact avec le récipient quand le couvercle est verrouillé au récipient, le couvercle étant ainsi susceptible d'épouser en force le récipient au.niveau des parties précitées.9.- Method according to any one of the preceding claims, characterized in that the cover is 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 cover being thus capable of forcing the container to the level of the aforementioned parts. 10.- Emballage étanche en matériau plastique du type comportant un élément formant couvercle et un élément formant récipient qui comporte chacun des surfaces se faisant face et venant en contact l'une de l'autre lors de l'assemblage des deux éléments, au moins une portion de l'une des surfaces précitées du couvercle ou du récipient pourvue d'une partie en relief, et une portion correspondante de l'autre des deux surfaces précitées pourvue d'une partie en creux, les deux parties précitées ayant des profils sensiblement identiques, notamment en forme de gorge, caractérisé en ce que les dimensions des parties en relief sont légèrement supérieures à celles des parties en creux.10.- Watertight packaging of plastic material of the type comprising a cover element and a container element which each has 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 aforementioned surfaces of the cover or of the container provided with a raised part, and a corresponding portion of the other of the two aforementioned surfaces provided with a hollow part, the two aforementioned parts having substantially identical profiles, in particular in the form of a groove, characterized in that that the dimensions of the raised parts are slightly greater than those of the hollow parts. 11.- Emballage selon l'une quelconque des revendications 9 ou 10, caractérisé en ce que les parties en relief et/ou en creux ont un profil de boucle ouverte dont la partie étroite est située au niveau des surfaces précitées du couvercle et du récipient.11.- Packaging according to any one of claims 9 or 10, characterized in that the raised and / or hollow parts have an open loop profile whose narrow part is located at the aforementioned surfaces of the lid and the container . 12.- Emballage selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que les parties en relief et en creux s'étendent sur l'ensemble des pourtours des surfaces précitées du récipient et du couvercle.12.- Packaging according to any one of claims 10 or 11, characterized in that the raised and recessed portions extend over all the edges of the aforementioned surfaces of the container and the lid. 13.- Emballage selon l'une quelconque des revendications 10 à 12, caractérisé en ce que la partie du couvercle située au voisinage de la surface à assembler avec le récipient et entre cette surface et la partie restante ou centrale du couvercle présente un coude.13.- Packaging according to any one of claims 10 to 12, characterized in that the part of the cover located in the vicinity of the surface to be assembled with the container and between this surface and the remaining or central part of the cover has a bend. 14.- Emballage selon l'une quelconque des revendications 10 à 13, caractérisé en ce que le couvercle et le récipient sont constitués de matériaux distincts, présentant entre eux des différences de dureté ou rigidité et de ductilité.14.- Packaging according to any one of claims 10 to 13, characterized in that the cover and the container are made of separate materials, having between them differences in hardness or stiffness and ductility. 15.- Emballage selon la revendication 14, caractérisé en ce que le couvercle est constitué d'un matériau plastique choisi parmi un polymère du type polyprcpylène et en ce que le récipient est constitué d'un matériau plastique choisi parmi un polymère du type polystyrène.15.- Packaging according to claim 14, characterized in that the cover is made of a material plastic chosen from a polymer of the polypropylene type and in that the container consists of a plastic material chosen from a polymer of the polystyrene type. 16.- Emballage selon l'une quelconque des revendications 10 à 15, caractérisé en ce que la partie en relief a des dimensions légèrement inférieures aux dimensions de la partie en creux, la partie en relief étant susceptible d'être insérée dans la partie en creux à force avec passage d'un point dur.16.- Packaging according to any one of claims 10 to 15, characterized in that the raised part has dimensions slightly smaller than the dimensions of the hollow part, the raised part being able to be inserted into the part force hollow with passage of a hard point. 17.- Emballage selon l'une quelconque des revendications précédentes, caractérisé en ce que le couvercle a des dimensions légèrement inférieures à celles du récipient notamment pour au moins certaines des parties du couvercle qui sont en contact avec le récipient quand le couvercle est verrouillé au récipient, le couvercle étant ainsi susceptible d'épouser en force le récipient au niveau des parties précitées.17.- Packaging according to any one of the preceding claims, characterized in that the cover has 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 cover thus being capable of forcing into force the container at the aforementioned parts.
EP81400071A 1980-01-23 1981-01-20 Sealing method, particularly for plastic packaging, and hermetic package obtained by this method Expired EP0033266B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001434 1980-01-23
FR8001434A FR2473995A1 (en) 1980-01-23 1980-01-23 CRIMPING METHOD, IN PARTICULAR FOR PLASTIC PACKAGING, AND SEALED PACKAGING OBTAINED BY THIS PROCESS

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EP0033266A1 true EP0033266A1 (en) 1981-08-05
EP0033266B1 EP0033266B1 (en) 1986-07-30

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DE (1) DE3175008D1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567107A1 (en) * 1984-07-03 1986-01-10 Mbd Groupe Design Temporary and disposable package for any product packaged under vacuum or in an inert atmosphere
US4947993A (en) * 1989-07-31 1990-08-14 Kathryn Nicolosi Container
WO1996015042A1 (en) 1994-11-15 1996-05-23 Satatuote Oy Package with lid made by deep drawing method
EP0716986A1 (en) * 1994-12-13 1996-06-19 Marcello Fossi Arrangement for temporary reclosure of containers in particular for foodstuff
EP0758614A1 (en) * 1995-08-12 1997-02-19 Penlea Plastics Ltd. Tight seal for plastic container and lid
GB2337044A (en) * 1998-05-08 1999-11-10 Plasboard Plastics Ltd Container suitable for use as a fish tank
EP0916593A3 (en) * 1997-11-18 2002-05-29 Discus Dental Impressions Inc. Single-dose double-cup package and method
US6883678B2 (en) * 2002-04-23 2005-04-26 Hsin-Hung Chou Food container sealing structure
AU2001293518B2 (en) * 2000-10-12 2005-10-06 Innovative Design Co Pty Ltd Container-closure arrangement
AU2002301339B2 (en) * 2001-10-15 2008-05-01 Viscount Plastics (Australia) Pty Ltd Container and Lid Therefor
WO2009057180A1 (en) * 2007-10-29 2009-05-07 Nevi Hugo Closable plastic plates
JP2012158368A (en) * 2011-02-01 2012-08-23 Atsugi Plastic Kk Unseal-detectable packaging container
CN102963595A (en) * 2012-12-08 2013-03-13 张家港市天江精密模具制造有限公司 Sealed food packaging box
CN108128544A (en) * 2016-12-01 2018-06-08 曹文岭 The bottle cap and sealing container of a kind of sealing container

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2086376A1 (en) * 1970-04-27 1971-12-31 Grace W R Ltd

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GB1446424A (en) * 1972-07-28 1976-08-18 Tup Panama Sa Moulded plastic containers
GB1388331A (en) * 1973-04-30 1975-03-26 Heisler R A Plastics containers and covers therefor
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2086376A1 (en) * 1970-04-27 1971-12-31 Grace W R Ltd

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567107A1 (en) * 1984-07-03 1986-01-10 Mbd Groupe Design Temporary and disposable package for any product packaged under vacuum or in an inert atmosphere
US4947993A (en) * 1989-07-31 1990-08-14 Kathryn Nicolosi Container
WO1996015042A1 (en) 1994-11-15 1996-05-23 Satatuote Oy Package with lid made by deep drawing method
EP0716986A1 (en) * 1994-12-13 1996-06-19 Marcello Fossi Arrangement for temporary reclosure of containers in particular for foodstuff
EP0758614A1 (en) * 1995-08-12 1997-02-19 Penlea Plastics Ltd. Tight seal for plastic container and lid
EP0916593A3 (en) * 1997-11-18 2002-05-29 Discus Dental Impressions Inc. Single-dose double-cup package and method
KR100583695B1 (en) * 1997-11-18 2006-10-19 디스커스 덴탈 임프레션스 인코포레이티드 Single-Distribution Dual-Cup Packages and Methods
GB2337044A (en) * 1998-05-08 1999-11-10 Plasboard Plastics Ltd Container suitable for use as a fish tank
GB2337044B (en) * 1998-05-08 2002-12-24 Plasboard Plastics Ltd Container suitable for transporting fish
AU2001293518B2 (en) * 2000-10-12 2005-10-06 Innovative Design Co Pty Ltd Container-closure arrangement
AU2002301339B2 (en) * 2001-10-15 2008-05-01 Viscount Plastics (Australia) Pty Ltd Container and Lid Therefor
US6883678B2 (en) * 2002-04-23 2005-04-26 Hsin-Hung Chou Food container sealing structure
WO2009057180A1 (en) * 2007-10-29 2009-05-07 Nevi Hugo Closable plastic plates
JP2012158368A (en) * 2011-02-01 2012-08-23 Atsugi Plastic Kk Unseal-detectable packaging container
CN102963595A (en) * 2012-12-08 2013-03-13 张家港市天江精密模具制造有限公司 Sealed food packaging box
CN108128544A (en) * 2016-12-01 2018-06-08 曹文岭 The bottle cap and sealing container of a kind of sealing container

Also Published As

Publication number Publication date
FR2473995B1 (en) 1983-08-12
ES265210U (en) 1983-02-16
EP0033266B1 (en) 1986-07-30
ES265210Y (en) 1983-08-01
DE3175008D1 (en) 1986-09-04
FR2473995A1 (en) 1981-07-24

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