EP1346925A1 - Method for suspended packaging of various products and packages thus obtained - Google Patents

Method for suspended packaging of various products and packages thus obtained Download PDF

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Publication number
EP1346925A1
EP1346925A1 EP03356044A EP03356044A EP1346925A1 EP 1346925 A1 EP1346925 A1 EP 1346925A1 EP 03356044 A EP03356044 A EP 03356044A EP 03356044 A EP03356044 A EP 03356044A EP 1346925 A1 EP1346925 A1 EP 1346925A1
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EP
European Patent Office
Prior art keywords
film
product
products
packaging
support frame
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Granted
Application number
EP03356044A
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German (de)
French (fr)
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EP1346925B1 (en
Inventor
Olivier Braconnot
Pierre Brun
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Velfor Plast
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Velfor Plast
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Publication of EP1346925A1 publication Critical patent/EP1346925A1/en
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    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/07—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using resilient suspension means

Definitions

  • the invention relates to the technical sector of product packaging various and in particular very fragile products for their transport.
  • the invention relates to the technical sector of packaging using means for suspending one or more products packaged without the said products being in contact with the bottom of the packaging or with any of the walls thereof.
  • Two half shells are thus produced, each with a film and one or more alveoli, then are superimposed and joined together by their border peripheral.
  • the products are therefore placed in the cells conforming to from stretch films in a sandwich configuration.
  • shoe trees which are conform to the profile and characteristics of the part or product to be packaged, requires a multiplicity of this type of tool. Indeed, depending on the varied nature of products to be packaged, depending on the size of these, shoe trees of different characteristics.
  • the tooling includes several shoe trees. So it is necessary that the products have the same or substantially the same size.
  • the products are held in symmetrical cells formed on each of the half-shells of the packaging. This may result in floating packaging of said products. in the alveoli if the size of the products is not adapted to the interior volume defined by each cell made from two half parts of stretch film previously embossed and shaped by the shoe trees.
  • a first object, according to the invention, was to design a new process which allows to pack a product in suspension ensuring a maintenance firm, stable, and closely adapted to the shapes of the product to be packaged.
  • Another goal was to design a packaging allowing the suspension of diverse products with applications as diverse as prosthetics medical, mechanical parts, food, etc.
  • the packaging process one or more products suspended in a thermo-formed shell characterized by what it consists of making an autonomous sub-assembly including a support frame receiver of a stretch film, said film authorizing the suspension of one or more products, and a cover positioned on said support frame and ensuring, by its lower surface, a specific support on the product (s) centered on said film, and in that said subset is positioned on a thermoformed tray receiving, on its upper face, a sealing under film form for sealing purposes.
  • products to be packaged and conditioning will be taken in its generic sense. It is referenced in its together by (1). In an example of an advantageous application, this or these products can be spherical prostheses.
  • products to be packaged, according to the process of the invention are fragile and must have no contact with the bottom of the packaging or its walls.
  • the packaging (E), taken as a whole, can be arranged with one or more thermoformed trays capable of integrate into each other.
  • this package is referenced as a whole by (E). It includes a first shell-shaped tray (2), made of plastic, thermoformed, with a flange on its upper part inner peripheral (2.a), flat and horizontal, constituting a support zone another tray forming a shell (4) thermoformed profiled and having successively two support zones (4.a and 4.b) horizontal and stepped.
  • a first shell-shaped tray (2) made of plastic, thermoformed, with a flange on its upper part inner peripheral (2.a), flat and horizontal, constituting a support zone another tray forming a shell (4) thermoformed profiled and having successively two support zones (4.a and 4.b) horizontal and stepped.
  • This second tray located inside the previous one, in the example of application to prostheses for medical use, is likely to receive an autonomous sub-assembly (SE) comprising a support frame (5), a stretch film (6) allowing the suspension of the product or products and a cover (3) for protecting said product or products.
  • SE autonomous sub-assembly
  • said subset is supported on the lower stepped part (4.a) of the tray (4).
  • the stretch film (6) is made of polyurethane, polyethylene or other materials offering qualities and specifics of stretching and retraction.
  • the stretch film is welded by ultrasound, glued or otherwise by sound end (6.a) on the upper horizontal edge (5.a) of the support frame.
  • the cover (3) is arranged to receive, on its internal face (3.a), directly or in a reported manner, at least one tablet (3.b) or filling capable of come into contact, without damage, with the upper part of the product (s) (1).
  • the packaging according to the invention allows, by said sub-assembly (SE) autonomous, a suspension of the product (s), support and maintenance firm of it or these avoiding any floating harmful to its or their integrity.
  • SE sub-assembly
  • the packaging can thus include one or two interlocking trays one inside the other by authorizing the positioning of the sub-assembly (SE) consisting of the support frame, the stretch film, the product (s) and the cover (3).
  • SE sub-assembly
  • the planar upper face (3.c) of the cover is advantageously located in a plane lower than the plane formed by the outer peripheral border (4.b) or (2.b) of the tray so as to allow the additional sealing of the or trays by a film (10) and (11) offering a better seal.
  • the packaging manufacturing process allowing the suspension of one or more products is as follows.
  • thermoformed frame (5) open in its center (5.c) presenting an upper border (5.a), flat and horizontal, to form a support zone.
  • This thermo-formed support frame may, depending on the applications, have internally one or more stepped zones (5.b) constituting zones support.
  • This frame can be of rectangular, square or other configuration.
  • the product (1) is positioned in the center of the film stretchable.
  • a pressure tool or means (9) arranged in a vertical plane comes resting on the product by completing its maintenance.
  • the next phase shown in Figure 6, represents the removal or relaxation of the vacuum effect thus produced in the matrix (8), while maintaining proper support and pressure on the product by the tool (9).
  • a product ascent phenomenon (1) then occurs through the effect of partial shrinkage of the stretch film. This comes partially surrounded by the product beyond its half part.
  • the stretch film goes beyond, in its contact with the product, the half part corresponding thereby ensuring a partial detention and imprisonment effect of the product under consideration.
  • the film surrounds the product and encloses it beyond its widest part.
  • the next phase is to completely remove the pressure vertical on the product, which, therefore, rises a little more then towards the part support frame by increasing the clamping effect.
  • the product is thus suspended from the support frame (5).
  • the next phase consists in positioning the cover (3) on the support frame.
  • the cover according to the invention is arranged on its underside, directly or in a reported manner, with a projecting area (3.c) likely to contact and support the upper plane of the product. More specifically, the cover has an inner flange receiving a backing pad (3.b), foam or other material, may not scratch or otherwise damage the product.
  • the next phase consists in positioning the sub-assembly (SE) as well fitted on the tray forming a thermo-formed shell of the packaging (figure 8).
  • the lidding film (10) is positioned on the upper side of the tray.
  • each tray receives a sealing film (10 -11) and sealing film.
  • the above process and the product obtained allow to obtain better support and clamping of the products to be packaged, and this whatever their shape, volume and dimensions, requiring no tools particular, as is the case according to the prior art, and whatever the applications.
  • the outer packaging may have one or two interlocking shells internally one inside the other, as shown in figure 1, or only one shell, as shown in Figures 8 and 9.
  • the packaging (s) of the above type may allow packaging of one or more products.

Abstract

The package consists of a thermoformed base (2) with an optional inner liner (4), and a separate sub-assembly made from a supporting frame (5) and layer of stretch film (6) for suspending products (1). The sub-assembly is closed by a lid (3) with an inner pad (3b) held against the packaged product without damaging it. Once the subassembly has been fitted to the base it is covered by a film seal (10, 11). An Independent claim is also included for packaging for products suspended in the stretch film.

Description

L'invention se rattache au secteur technique de l'emballage de produits divers et en particulier de produits très fragiles en vue de leur transport.The invention relates to the technical sector of product packaging various and in particular very fragile products for their transport.

Plus particulièrement, l'invention se rattache au secteur technique des emballages mettant en oeuvre des moyens de suspension d'un ou des produits conditionnés sans que lesdits produits soient en contact avec le fond de l'emballage ou avec une quelconque des parois de celui-ci.More particularly, the invention relates to the technical sector of packaging using means for suspending one or more products packaged without the said products being in contact with the bottom of the packaging or with any of the walls thereof.

Selon l'art antérieur, la mise en suspension de produits dans un emballage a été décrite dans le brevet GB n° 640.283. Dans ce cas particulier, il s'agit d'un conditionnement de produits alimentaires du type « tomates, abricots», les produits étant disposés entre deux films étirables en matière plastique et deux demi-coques susceptibles, par leur pourtour périphérique, de former un ensemble monobloc.According to the prior art, the suspension of products in a package has been described in GB patent n ° 640,283. In this particular case, it is a packaging of food products such as "tomatoes, apricots", products being arranged between two plastic stretch films and two half-shells likely, by their peripheral periphery, to form a monobloc assembly.

On connaít aussi, par le brevet Français n° 2.707.608, un concept du même type pour la même application.We also know, from French patent n ° 2,707,608, a concept of the same type for the same application.

Une autre technique a été proposée dans le brevet Français n° 2.775.253 dans l'application de la présentation et conservation de produits alimentaires. Selon ce document, on réalise un espace de confinement en recouvrant la partie ouverte de la coque à l'aide d'un film étirable préalablement tendu, on le déforme ensuite physiquement par l'action d'embauchoirs, mobiles, ayant la forme du ou des produits à emballer. On procède, au cours de l'opération de moulage, à un vide partiel dans le volume fermé de la coque pour maintenir, en dépression, le film conformé en position. On met en place le ou les produits. On procède ensuite à la découpe de la bordure périphérique du film à l'extérieur de la zone d'adhérence du film sur le bord de la coque.Another technique has been proposed in French Patent No. 2,775,253 in the application of the presentation and conservation of food products. According to this document, a confinement space is created by covering the part open the hull using a stretch film previously stretched, then physically deforms by the action of movable shoe trees, having the form of the product or products to be packaged. We proceed, during the operation of molding, to a partial vacuum in the closed volume of the shell to maintain, in depression, the film conformed in position. We set up the product (s). We then proceeds to cut the peripheral border of the film outside of the adhesion zone of the film on the edge of the shell.

Deux demi coques sont ainsi réalisées avec chacune un film et une ou des alvéoles, puis sont superposées et accolées mutuellement par leur bordure périphérique. Les produits sont donc disposés dans les alvéoles conformées à partir des films étirables dans une configuration en sandwich.Two half shells are thus produced, each with a film and one or more alveoli, then are superimposed and joined together by their border peripheral. The products are therefore placed in the cells conforming to from stretch films in a sandwich configuration.

Selon le procédé précité, la mise en oeuvre d'embauchoirs, qui sont conformes au profil et aux caractéristiques de la pièce ou du produit à emballer, exige une multiplicité de ce type d'outillage. En effet, selon la nature variée des produits à emballer, selon la dimension de ceux-ci, il faut prévoir des embauchoirs de caractéristiques différentes.According to the aforementioned method, the use of shoe trees, which are conform to the profile and characteristics of the part or product to be packaged, requires a multiplicity of this type of tool. Indeed, depending on the varied nature of products to be packaged, depending on the size of these, shoe trees of different characteristics.

Dans le cas de conditionnement simultané de plusieurs produits, dans un même emballage, l'outillage comprend plusieurs embauchoirs. Il faut donc que les produits aient un même calibre ou sensiblement le même. Les produits sont maintenus dans des alvéoles symétriques formées sur chacune des demi-coques de l'emballage. Il peut en résulter un conditionnement flottant desdits produits dans les alvéoles si le calibre des produits est mal adapté au volume intérieur défini par chaque alvéole réalisée à partir des deux demi parties de film étirable préalablement embossées et mises en forme par les embauchoirs.In the case of simultaneous packaging of several products, in one same packaging, the tooling includes several shoe trees. So it is necessary that the products have the same or substantially the same size. The products are held in symmetrical cells formed on each of the half-shells of the packaging. This may result in floating packaging of said products. in the alveoli if the size of the products is not adapted to the interior volume defined by each cell made from two half parts of stretch film previously embossed and shaped by the shoe trees.

A partir de cet art antérieur, la déposante a recherché une nouvelle conception d'un procédé d'emballage qui s'affranchisse des contraintes précitées et inconvénients.From this prior art, the applicant sought a new design of a packaging process which overcomes constraints above and disadvantages.

Un premier but, selon l'invention, était de concevoir un nouveau procédé qui permette d'emballer un produit en suspension en assurant un maintien ferme, stable, et adapté étroitement aux formes du produit à emballer.A first object, according to the invention, was to design a new process which allows to pack a product in suspension ensuring a maintenance firm, stable, and closely adapted to the shapes of the product to be packaged.

Un autre but recherché était de s'affranchir des outillages de mise en forme des cavités réceptrices de produits.Another goal sought was to get rid of the tools of setting forms product receiving cavities.

Un autre but était de concevoir un emballage permettant la suspension de produits divers avec des applications aussi diverses que des prothèses médicales, que des pièces mécaniques, que des produits alimentaires, etc.Another goal was to design a packaging allowing the suspension of diverse products with applications as diverse as prosthetics medical, mechanical parts, food, etc.

Ces buts et d'autres encore ressortiront bien de la suite de la description.These goals and others will become apparent from the following description.

Selon une première caractéristique de l'invention, le procédé d'emballage d'un ou de produits en suspension dans une coque thermo-formée caractérisé en ce qu'il consiste à réaliser un sous-ensemble autonome incluant un cadre-support récepteur d'un film étirable, ledit film autorisant la mise en suspension d'un ou de plusieurs produits, et un couvercle positionné sur ledit cadre-support et assurant, par sa surface inférieure, un appui ponctuel sur le ou les produits centrés sur ledit film, et en ce que ledit sous-ensemble est positionné sur une barquette thermo-formée recevant, sur sa face supérieure, un operculage sous forme de film à des fins d'étanchéité. According to a first characteristic of the invention, the packaging process one or more products suspended in a thermo-formed shell characterized by what it consists of making an autonomous sub-assembly including a support frame receiver of a stretch film, said film authorizing the suspension of one or more products, and a cover positioned on said support frame and ensuring, by its lower surface, a specific support on the product (s) centered on said film, and in that said subset is positioned on a thermoformed tray receiving, on its upper face, a sealing under film form for sealing purposes.

Selon une autre caractéristique de l'invention, le procédé d'emballage d'un ou de produits en suspension dans une barquette en forme de coque thermo-formée caractérisé en ce qu'il met en oeuvre les phases suivantes :

  • on utilise un cadre support thermo-formé ouvert en son centre pour positionner un film en matière plastique étirable, le film prenant appui sur la bordure périphérique supérieure du cadre, et en étant fixé à celui-ci,
  • on positionne ledit cadre support sur une matrice ayant une profondeur pour permettre la déformation vers le bas du film, et ce grâce à l'actionnement d'une source de mise sous vide,
  • on procède à la mise sous vide entraínant le film vers le bas avec une déformation par étirage,
  • on positionne le ou les produits à conditionner sur le film étirable et on exerce un effet d'appui et de pression verticale par un moyen venant en contact avec le ou les produits,
  • on supprime tout ou partie de l'opération de vide permettant la remontée partielle du film étirable tout en maintenant un appui et une pression sur le ou les produits, permettant une rétraction partielle du film étirable pour assurer le recouvrement dudit ou desdits produits par le film au-delà de sa ou leur partie la plus large,
  • on supprime la force de pression verticale permettant une remontée du film étirable et du ou des produits et un recouvrement complémentaire de ce ou ces derniers, le ou les produits étant mis en suspension,
  • on positionne le couvercle sur le cadre support en exerçant un appui sur le plan supérieur du ou des produits,
  • on transfert le cadre support avec le film et le ou les produits constituant le sous-ensemble sur une barquette formant une coque thermo-formée de l'emballage et on procède au dépôt d'un film d'operculage sur la face supérieure de la barquette.
According to another characteristic of the invention, the method of packaging one or more products in suspension in a tray in the form of a thermo-formed shell, characterized in that it implements the following phases:
  • a thermoformed support frame is used, open at its center, for positioning a film of stretchable plastic, the film resting on the upper peripheral edge of the frame, and being fixed thereto,
  • positioning said support frame on a matrix having a depth to allow the downward deformation of the film, and this by actuation of a vacuum source,
  • we proceed to the vacuum driving the film down with a stretch deformation,
  • the product or products to be packaged are positioned on the stretch film and a support and vertical pressure effect is exerted by a means coming into contact with the product or products,
  • it removes all or part of the vacuum operation allowing the partial recovery of the stretch film while maintaining a pressure and pressure on the product (s), allowing a partial retraction of the stretch film to ensure the covering of said product (s) by the film beyond its or their widest part,
  • the vertical pressure force is eliminated, allowing the stretch film and the product (s) to rise and additional covering of the latter, the product or products being suspended,
  • the cover is positioned on the support frame by pressing on the upper plane of the product (s),
  • the support frame is transferred with the film and the product or products constituting the sub-assembly to a tray forming a thermally-formed shell of the packaging and a sealing film is deposited on the upper face of the tray .

Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description. These characteristics and others will become clear from the rest of the description.

Pour fixer l'objet de l'invention illustrée de manière non limitative aux figures des dessins où :

  • La figure 1 est une vue en coupe transversale d'un emballage supportant un produit mis en suspension, selon l'invention, l'emballage étant réalisé dans une application particulière pour des prothèses sphériques.
  • La figure 2 est une vue d'un cadre support nécessaire à la mise en suspension du produit à emballer,
  • La figure 3 est une vue de dessus, selon la figure 2,
  • La figure 4 est une vue illustrant la mise en position du cadre support sur une matrice avec positionnement à l'horizontal d'un film étirable,
  • La figure 5 est une vue suivant la figure 4, selon laquelle le film étirable a été préalablement aspiré vers le bas de la matrice, puis après positionnement du produit à emballer et mise en pression sur ce dernier,
  • La figure 6 est une vue suivant la figure 5 illustrant le relâchement du film étirable par suite de la cessation d'effet d'aspiration sous vide,
  • La figure 7 est une vue en perspective illustrant le cadre support, après enlèvement de la matrice,
  • La figure 8 est une vue, selon la figure 7, après positionnement du cadre support sur le cadre support,
  • La figure 9 est une vue, selon la figure 8, illustrant l'apposition d'un couvercle sur la coque thertmo-formée de l'emballage, et pelliculage ensuite.
    • To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawings where:
  • Figure 1 is a cross-sectional view of a package supporting a suspended product, according to the invention, the package being produced in a particular application for spherical prostheses.
  • FIG. 2 is a view of a support frame necessary for suspending the product to be packaged,
  • FIG. 3 is a top view, according to FIG. 2,
  • FIG. 4 is a view illustrating the positioning of the support frame on a matrix with horizontal positioning of a stretch film,
  • FIG. 5 is a view according to FIG. 4, according to which the stretch film has been previously sucked down from the matrix, then after positioning the product to be packaged and pressurizing it,
  • FIG. 6 is a view according to FIG. 5 illustrating the loosening of the stretch film as a result of the cessation of the vacuum suction effect,
  • FIG. 7 is a perspective view illustrating the support frame, after removal of the matrix,
  • FIG. 8 is a view, according to FIG. 7, after positioning the support frame on the support frame,
  • Figure 9 is a view, according to Figure 8, illustrating the affixing of a cover on the thermo-formed shell of the package, and film coating thereafter.

    • Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant d'une manière non limitative illustrée aux figures des dessins.In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

    Dans la suite de la description, le terme «produit» à emballer et à conditionner sera pris dans son sens générique. Il est référencé dans son ensemble par (1). Dans un exemple d'application avantageuse, ce ou ces produits peuvent être des prothèses sphériques. Dune manière générale, les produits à emballer, selon le procédé de l'invention, sont fragiles et doivent n'avoir aucun contact avec le fond de l'emballage ou ses parois.In the following description, the term "product" to be packaged and conditioning will be taken in its generic sense. It is referenced in its together by (1). In an example of an advantageous application, this or these products can be spherical prostheses. Generally, products to be packaged, according to the process of the invention, are fragile and must have no contact with the bottom of the packaging or its walls.

    Il convient, dans un premier temps, de procéder à la description de l'emballage obtenu selon l'invention.It is first necessary to proceed to the description of the packaging obtained according to the invention.

    Selon les applications, les exigences de protection et de sécurité, et également d'étanchéité, l'emballage (E), pris dans son ensemble, peut être agencé avec une ou plusieurs barquettes thermo-formées susceptibles de s'intégrer les unes dans les autres.Depending on the applications, protection and security requirements, and also sealing, the packaging (E), taken as a whole, can be arranged with one or more thermoformed trays capable of integrate into each other.

    En se référant à la figure 1, cet emballage est référencé dans son ensemble par (E). Il comprend une première barquette en forme de coque (2), en matière plastique, thermo-formée, présentant, sur sa partie supérieure, une collerette périphérique intérieure (2.a), plane et horizontale, constituant une zone d'appui d'une autre barquette formant coque (4) profilée thermo-formée et présentant successivement deux zones d'appui (4.a et 4.b) horizontales et étagées.Referring to Figure 1, this package is referenced as a whole by (E). It includes a first shell-shaped tray (2), made of plastic, thermoformed, with a flange on its upper part inner peripheral (2.a), flat and horizontal, constituting a support zone another tray forming a shell (4) thermoformed profiled and having successively two support zones (4.a and 4.b) horizontal and stepped.

    Cette seconde barquette située intérieurement à la précédente, dans l'exemple d'application à des prothèses à usage médical, est susceptible de recevoir un sous-ensemble (SE) autonome comprenant un cadre support (5), un film étirable (6) permettant la mise en suspension du ou des produits et un couvercle (3) de protection dudit ou des dits produits. A cet effet, ledit sous-ensemble prend appui sur la partie étagée inférieure (4.a) de la barquette (4). Le film étirable (6) est en polyuréthane, polyéthylène ou autres matières offrant des qualités et spécificités d'étirement et de rétraction.This second tray located inside the previous one, in the example of application to prostheses for medical use, is likely to receive an autonomous sub-assembly (SE) comprising a support frame (5), a stretch film (6) allowing the suspension of the product or products and a cover (3) for protecting said product or products. To this end, said subset is supported on the lower stepped part (4.a) of the tray (4). The stretch film (6) is made of polyurethane, polyethylene or other materials offering qualities and specifics of stretching and retraction.

    Le film étirable est soudé par ultra-sons, collé ou autrement par son extrémité (6.a) sur la bordure supérieure (5.a) horizontale du cadre support. Le couvercle (3) est agencé pour recevoir, sur sa face interne (3.a), directement ou d'une manière rapportée, au moins une pastille (3.b) ou garniture susceptible de venir en contact, sans dommage, avec la partie supérieure du ou des produits (1).The stretch film is welded by ultrasound, glued or otherwise by sound end (6.a) on the upper horizontal edge (5.a) of the support frame. The cover (3) is arranged to receive, on its internal face (3.a), directly or in a reported manner, at least one tablet (3.b) or filling capable of come into contact, without damage, with the upper part of the product (s) (1).

    Ainsi, l'emballage, selon l'invention, permet, par ledit sous-ensemble (SE) autonome, une mise en suspension du ou des produits, un appui et maintien ferme de celui-ci ou de ceux-ci évitant tout flottement nuisible à son ou à leur intégrité.Thus, the packaging according to the invention allows, by said sub-assembly (SE) autonomous, a suspension of the product (s), support and maintenance firm of it or these avoiding any floating harmful to its or their integrity.

    L'emballage peut ainsi comprendre une ou deux barquettes s'emboítant l'une dans l'autre en autorisant la mise en position du sous-ensemble (SE) constitué par le cadre support, le film étirable, le ou les produits et le couvercle (3). La face supérieure (3.c) plane du couvercle se situe avantageusement dans un plan inférieur au plan constitué par la bordure périphérique extérieure (4.b) ou (2.b) de la barquette de sorte à permettre l'operculage complémentaire de la ou des barquettes par un film (10) et (11) offrant une meilleure étanchéité.The packaging can thus include one or two interlocking trays one inside the other by authorizing the positioning of the sub-assembly (SE) consisting of the support frame, the stretch film, the product (s) and the cover (3). The planar upper face (3.c) of the cover is advantageously located in a plane lower than the plane formed by the outer peripheral border (4.b) or (2.b) of the tray so as to allow the additional sealing of the or trays by a film (10) and (11) offering a better seal.

    Le procédé de fabrication d'emballage permettant la mise en suspension d'un ou de plusieurs produits est le suivant.The packaging manufacturing process allowing the suspension of one or more products is as follows.

    On utilise un cadre thermo-formé (5) ouvert en son centre (5.c) présentant une bordure supérieure (5.a), plane et horizontale, pour former zone d'appui. Ce cadre support thermo-formé peut, selon les applications, présenter intérieurement une ou plusieurs zones étagées (5.b) constituant des zones d'appui. Ce cadre peut être de configuration rectangulaire ou carré ou autre.We use a thermoformed frame (5) open in its center (5.c) presenting an upper border (5.a), flat and horizontal, to form a support zone. This thermo-formed support frame may, depending on the applications, have internally one or more stepped zones (5.b) constituting zones support. This frame can be of rectangular, square or other configuration.

    Dans une première phase du procédé, on procède à l'operculage de ce cadre en positionnant ce dernier sur une matrice (7), s'engageant autour de la bordure périphérique (5.a) et à l'intérieur de celle-ci. Le film étirable (6), par exemple en polyuréthane ou en polyéthylène, est rapporté au-dessus dudit cadre (figure 4) et, à l'aide d'un moyen coupant et de fusion (7.a), il est scellé sur ladite bordure supérieure du cadre support. Le cadre ainsi réalisé avec son film est mis en place sur une autre matrice (8) ayant une certaine profondeur pour permettre la déformation vers le bas du film étirable. Cette matrice reçoit, dans sa partie supérieure par appui, ledit cadre support (5). Cette matrice présente une ou plusieurs ouvertures (8.a) de petite section permettant d'effectuer, à l'aide d'un moyen approprié, une aspiration sous vide. On procède alors à la mise sous vide, ce qui entraíne le film (6) vers le bas avec une déformation par étirage.In a first phase of the process, we proceed to the sealing of this frame by positioning the latter on a matrix (7), engaging around the peripheral border (5.a) and inside of it. The stretch film (6), by polyurethane or polyethylene example, is reported above said frame (Figure 4) and, using a cutting and melting means (7.a), it is sealed on said upper edge of the support frame. The frame thus produced with his film is placed on another matrix (8) having a certain depth for allow the downward deformation of the stretch film. This matrix receives, in its upper part by support, said support frame (5). This matrix presents one or more openings (8.a) of small section allowing, using an appropriate means, vacuum suction. We then proceed to the vacuum, which causes the film (6) down with a deformation by drawing.

    Puis, selon la figure 5, le produit (1) est positionné au centre du film étirable. Un outil ou moyen de pression (9) disposé dans un plan vertical vient en appui sur le produit en complétant son maintien.Then, according to FIG. 5, the product (1) is positioned in the center of the film stretchable. A pressure tool or means (9) arranged in a vertical plane comes resting on the product by completing its maintenance.

    La phase suivante, représentée figure 6, représente la suppression ou relâchement de l'effet de vide ainsi réalisé dans la matrice (8), tout en maintenant un appui et une pression appropriée sur le produit par l'outil (9). Il se produit alors un phénomène de remontée du produit (1) par l'effet de rétraction partiel du film étirable. Celui-ci vient entouré partiellement le produit au-delà de sa demi partie. Dans le cadre d'une sphère, comme représentée figure 6, le film étirable va au-delà, dans son contact avec le produit, de la demi partie correspondante en assurant ainsi un effet de retenue et d'emprisonnement partiel du produit considéré. En d'autres termes, le film entoure le produit et l'enserre au-delà de sa partie la plus large.The next phase, shown in Figure 6, represents the removal or relaxation of the vacuum effect thus produced in the matrix (8), while maintaining proper support and pressure on the product by the tool (9). he a product ascent phenomenon (1) then occurs through the effect of partial shrinkage of the stretch film. This comes partially surrounded by the product beyond its half part. As part of a sphere, as shown in figure 6, the stretch film goes beyond, in its contact with the product, the half part corresponding thereby ensuring a partial detention and imprisonment effect of the product under consideration. In other words, the film surrounds the product and encloses it beyond its widest part.

    La phase suivante consiste à procéder à la suppression totale de la pression verticale sur le produit, qui, de ce fait, remonte un peu plus alors vers la partie supérieure du cadre-support en augmentant l'effet d'enserrage. Le produit est ainsi en suspension à partir du cadre support (5).The next phase is to completely remove the pressure vertical on the product, which, therefore, rises a little more then towards the part support frame by increasing the clamping effect. The product is thus suspended from the support frame (5).

    La phase suivante consiste à positionner le couvercle (3) sur le cadre-support. Le couvercle, selon l'invention, est aménagé sur sa face inférieure, directement ou d'une manière rapportée, avec une zone en saillie (3.c) susceptible de prendre contact et appui avec le plan supérieur du produit. Plus spécifiquement, le couvercle présente une collerette intérieure recevant une garniture d'appui (3.b), en mousse ou autre matériau, susceptible de ne pas rayer ou détériorer d'une manière quelconque le produit.The next phase consists in positioning the cover (3) on the support frame. The cover according to the invention is arranged on its underside, directly or in a reported manner, with a projecting area (3.c) likely to contact and support the upper plane of the product. More specifically, the cover has an inner flange receiving a backing pad (3.b), foam or other material, may not scratch or otherwise damage the product.

    La phase suivante consiste à positionner le sous-ensemble (SE) ainsi équipé sur la barquette formant une coque thermo-formée de l'emballage (figure 8).The next phase consists in positioning the sub-assembly (SE) as well fitted on the tray forming a thermo-formed shell of the packaging (figure 8).

    On crée ainsi un sous-ensemble autonome (SE), cadre-support, film, produit, couvercle (figure 7).We thus create an autonomous sub-assembly (SE), support frame, film, product, cover (figure 7).

    On procède ensuite au positionnement du film (10) d'operculage sur la face supérieure de la barquette.Next, the lidding film (10) is positioned on the upper side of the tray.

    Si, en fonction de l'application, il y a deux barquettes s'intégrant l'une dans l'autre pour renforcer la protection et la sécurité des produits, chaque barquette reçoit un film d'operculage (10 -11) et d'étanchéité.If, depending on the application, there are two trays integrating one in the other to strengthen product protection and safety, each tray receives a sealing film (10 -11) and sealing film.

    Ainsi, selon l'invention, le procédé précité et le produit obtenu permettent d'obtenir un meilleur maintien et enserrage des produits à conditionner, et ce quels que soient leur forme, volume et dimensions, en ne nécessitant aucun outil particulier, comme cela est le cas selon l'art antérieur, et quelles que soient les applications.Thus, according to the invention, the above process and the product obtained allow to obtain better support and clamping of the products to be packaged, and this whatever their shape, volume and dimensions, requiring no tools particular, as is the case according to the prior art, and whatever the applications.

    En fonction du type de produits à emballer, et de ses critères de fragilité, l'emballage extérieur peut présenter une ou deux coques s'emboítant intérieurement l'une dans l'autre, comme représenté figure 1, ou une seule coque, comme représenté figures 8 et 9.Depending on the type of product to be packaged, and its fragility criteria, the outer packaging may have one or two interlocking shells internally one inside the other, as shown in figure 1, or only one shell, as shown in Figures 8 and 9.

    Le ou les emballages du type précité peuvent permettre le conditionnement simultané de un ou de plusieurs produits.The packaging (s) of the above type may allow packaging of one or more products.

    Les avantages ressortent bien de l'invention. On souligne le nouveau concept du procédé qui est applicable quelle que soit la forme du ou des produits à emballer.The advantages emerge clearly from the invention. We highlight the new concept of the process which is applicable whatever the form of the products to be packaged.

    Claims (7)

    Procédé d'emballage d'un ou de produits en suspension dans une coque thermo-formée caractérisé en ce qu'il consiste à réaliser un sous-ensemble autonome (SE) incluant un cadre-support (5) récepteur d'un film étirable (6), ledit film autorisant la mise en suspension d'un où de plusieurs produits (1), et un couvercle (3) positionné sur ledit cadre-support et assurant, par sa surface inférieure, un appui ponctuel sur le ou les produits centrés sur ledit film,
       et en ce que ledit sous-ensemble est positionné sur une barquette thermo-formée recevant, sur sa face supérieure, un operculage sous forme de film à des fins d'étanchéité.    Method for packaging one or more products in suspension in a thermoformed shell, characterized in that it consists in producing an autonomous sub-assembly (SE) including a support frame (5) receiving a stretch film ( 6), said film authorizing the suspension of one or more products (1), and a cover (3) positioned on said support frame and ensuring, by its lower surface, a point support on the product or products centered on said film,
    and in that said subassembly is positioned on a thermoformed tray receiving, on its upper face, a sealing in the form of a film for sealing purposes.         Procédé, selon la revendication 1, d'emballage d'un ou de produits en suspension dans une barquette en forme de coque thermo-formée caractérisé en ce qu'il met en oeuvre les phases suivantes : on utilise un cadre support thermo-formé (5) ouvert en son centre (5.a) pour positionner un film (6) en matière plastique étirable, le film prenant appui sur la bordure périphérique (5.a) supérieure du cadre, et en étant fixé à celui-ci, on positionne ledit cadre support sur une matrice (8) ayant une profondeur pour permettre la déformation vers le bas du film, et ce grâce à l'actionnement d'une source de mise sous vide, on procède à la mise sous vide entraínant le film vers le bas avec une déformation par étirage, on positionne le ou les produits (1) à conditionner sur le film étirable (6) et on exerce un effet d'appui et de pression verticale par un moyen (9) venant en contact avec le ou les produits, on supprime tout ou partie de l'opération de vide permettant la remontée partielle du film étirable tout en maintenant un appui et une pression sur le ou les produits, permettant une rétraction partielle du film étirable pour assurer le recouvrement dudit ou desdits produits par le film au-delà de sa ou leur partie la plus large, on supprime la force de pression verticale permettant une remontée du film étirable et du ou des produits et un recouvrement complémentaire de ce ou ces derniers, le ou les produits étant mis en suspension, on positionne le couvercle (3) sur le cadre support en exerçant un appui sur le plan supérieur du ou des produits, on transfert le cadre support avec le film et le ou les produits constituant le sous-ensemble (SE) sur une barquette formant une coque thermo-formée de l'emballage et on procède au dépôt d'un film d'operculage sur la face supérieure de la barquette. Method according to claim 1, for packaging one or more products in suspension in a tray in the form of a thermo-formed shell, characterized in that it implements the following phases: using a thermo-formed support frame (5) open at its center (5.a) to position a film (6) of stretchable plastic, the film resting on the upper peripheral edge (5.a) of the frame, and by being attached to it, positioning said support frame on a matrix (8) having a depth to allow the downward deformation of the film, and this by actuation of a vacuum source, we proceed to the vacuum driving the film down with a stretch deformation, the product (s) (1) to be packaged is positioned on the stretch film (6) and a bearing and vertical pressure effect is exerted by means (9) coming into contact with the product (s), it removes all or part of the vacuum operation allowing the partial recovery of the stretch film while maintaining a pressure and pressure on the product (s), allowing a partial retraction of the stretch film to ensure the covering of said product (s) by the film beyond its or their widest part, the vertical pressure force is eliminated, allowing the stretch film and the product (s) to rise and additional covering of the latter, the product or products being suspended, the cover (3) is positioned on the support frame by pressing on the upper plane of the product (s), the support frame is transferred with the film and the product or products constituting the sub-assembly (SE) on a tray forming a thermo-formed shell of the packaging and a sealing film is deposited on the upper face from the tray. Emballage pour produits mis en suspension sur un film étirable, ledit film étant solidarisé à la bordure périphérique de 1a barquette en forme de coque de l'emballage, caractérisé en ce qu'il comprend au moins une barquette en forme de coque (2) thermo-formée présentant une collerette périphérique intérieure (2.a), plane et horizontale, autorisant intérieurement le positionnement d'un sous-ensemble (SE) autonome incluant un cadre support (5) profilé ouvert en son centre (5.c) sur lequel est positionné un film étirable et rétractable (6) fixé audit cadre support et autorisant la mise en suspension d'au moins un produit (1), ledit film étirable et rétractable entourant le ou les produits au-delà de leur zone la plus large, ledit sous-ensemble incluant un couvercle (3) aménagé sur sa face inférieure pour recevoir une garniture (3.b) susceptible de venir en appui, sans dommage, avec la partie supérieure du ou des produits (1).Packaging for products suspended on a stretch film, said film being secured to the peripheral edge of the shell-shaped container of the packaging, characterized in that it comprises at least one thermo-shell container (2) -formed having an inner peripheral flange (2.a), flat and horizontal, internally authorizing the positioning of an autonomous sub-assembly (SE) including a support frame (5) profiled open in its center (5.c) on which a stretch and retractable film is positioned (6) fixed to said support frame and authorizing the suspension of at least one product (1), said stretch and retractable film surrounding the product or products beyond their widest area, said sub-assembly including a cover (3) arranged on its underside to receive a lining (3.b) capable of coming to bear, without damage, with the upper part of the product (s) (1). Emballage, selon la revendication 3, caractérisé en ce qu'il comprend plusieurs barquettes en forme de coques (2 - 4) conformées pour s'adapter aux dites zones d'appui étagées et se positionner l'une dans l'autre en fonction du degré de fragilité du ou des produits contenus,
       et en ce que la barquette inférieure reçoit le sous-ensemble (SE) de mise en suspension du ou des produits.    Packaging according to claim 3, characterized in that it comprises several shells in the form of shells (2 - 4) shaped to adapt to said stepped bearing zones and to be positioned one inside the other according to the degree of fragility of the product (s) contained,
    and in that the lower tray receives the sub-assembly (SE) for suspending the product or products.         Emballage, selon l'une quelconque des revendications 3 et 4, caractérisé en ce que la face supérieure de la ou des barquettes reçoit un film d'operculage (10-11) et d'étanchéité,
       et en ce que la face supérieure du couvercle se trouve dans un plan inférieur au plan supérieur desdites barquettes.    Packaging, according to any one of claims 3 and 4, characterized in that the upper face of the tray (s) receives a sealing (10-11) and sealing film,
    and in that the upper face of the cover is in a plane lower than the upper plane of said trays.         Emballage, selon l'une quelconque des revendications précédentes, obtenu selon le procédé des revendications 1 et 2, caractérisé en ce que le film (6) étirable est en polyuréthane, polyéthylène ou similaire.Packaging according to any one of the preceding claims, obtained according to the method of claims 1 and 2, characterized in that the stretchable film (6) is made of polyurethane, polyethylene or the like. Emballage, selon l'une quelconque des revendications précédentes, obtenu selon le procédé des revendications 1 ou 2, caractérisé dans son application au conditionnement de prothèses médicales.Packaging according to any one of the preceding claims, obtained according to the process of claims 1 or 2, characterized in that application to the packaging of medical prostheses.
    EP03356044A 2002-03-11 2003-03-11 Method for suspended packaging of various products and packages thus obtained Expired - Lifetime EP1346925B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    FR0203137 2002-03-11
    FR0203137A FR2836900B1 (en) 2002-03-11 2002-03-11 PROCESS FOR PACKAGING SUSPENSION OF VARIOUS PRODUCTS AND PACKAGING OBTAINED
    CA002434465A CA2434465A1 (en) 2002-03-11 2003-07-04 Packaging process for various products in suspension and packaging obtained
    US10/614,407 US6880706B2 (en) 2002-03-11 2003-07-07 Method of packaging various products in suspension and the packages obtained

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    EP1346925A1 true EP1346925A1 (en) 2003-09-24
    EP1346925B1 EP1346925B1 (en) 2007-05-09

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    EP (1) EP1346925B1 (en)
    AT (1) ATE361882T1 (en)
    CA (1) CA2434465A1 (en)
    DE (1) DE60313690T2 (en)
    ES (1) ES2287433T3 (en)
    FR (1) FR2836900B1 (en)

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    US20050006269A1 (en) 2005-01-13
    ATE361882T1 (en) 2007-06-15
    DE60313690D1 (en) 2007-06-21
    FR2836900B1 (en) 2005-01-07
    DE60313690T2 (en) 2008-01-17
    CA2434465A1 (en) 2005-01-04
    ES2287433T3 (en) 2007-12-16
    US6880706B2 (en) 2005-04-19
    EP1346925B1 (en) 2007-05-09
    FR2836900A1 (en) 2003-09-12

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