EP0258145A1 - Flexible package comprising an evacuation component and a system for creating a vacuum in this package - Google Patents

Flexible package comprising an evacuation component and a system for creating a vacuum in this package Download PDF

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Publication number
EP0258145A1
EP0258145A1 EP87401924A EP87401924A EP0258145A1 EP 0258145 A1 EP0258145 A1 EP 0258145A1 EP 87401924 A EP87401924 A EP 87401924A EP 87401924 A EP87401924 A EP 87401924A EP 0258145 A1 EP0258145 A1 EP 0258145A1
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EP
European Patent Office
Prior art keywords
packaging
compressible volume
package
opening
sealing member
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.)
Withdrawn
Application number
EP87401924A
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German (de)
French (fr)
Inventor
Bernard Fafournoux
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0258145A1 publication Critical patent/EP0258145A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible 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
    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—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 providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum

Definitions

  • the present invention relates to a flexible packaging comprising a vacuum device and a device for evacuating such packaging.
  • An object of the present invention is to provide a packaging comprising a vacuum device that can perform several pumping operations as well as a device for evacuating this packaging.
  • a flexible packaging with a sealed wall comprising an edge delimiting an opening and a vacuum device, in which the vacuum device comprises a volume which can be compressed elastic having a wall comprising air passage means and disposed inside the packaging near the edge of the packaging while being spaced from it.
  • the compressible volume is used to carry out several pumping cycles by carrying out for each pumping cycle a compression of the compressible volume while isolating it from the inside of the packaging and then a relaxation of the compressible volume while closing the opening. of the packaging in a sealed manner and simultaneously placing the interior of the packaging in communication with the compressible volume.
  • the compressible volume is formed by a strip of flexible material fixed to the wall of the packaging inside of it and surrounding an elastic member, preferably a block of foam. with open cells.
  • an elastic member preferably a block of foam. with open cells.
  • a device for evacuating the packaging comprising a base for receiving one end of the flexible packaging adjacent to the opening and containing the volume compressible, a first movable support member on which is fixed a first sealing member extending transversely to the base on one side of the compressible volume opposite the opening of the packaging, this first support member comprising a support surface arranged to come to bear on the compressible volume when the first support member is moved towards the packaging, this support surface being set back with respect to the first sealing member, and a second support member mobile support on which is fixed a second sealing member extending transversely to the base on one side of the compressible volume facing the opening of the packaging.
  • the device comprises means for sealing the packaging.
  • the packaging is sealed and remains under vacuum.
  • the sealing means extend parallel to the second sealing member between the second sealing member and the edge of the packaging.
  • the second sealing member keeps the walls of the packaging tightly applied against each other during closing so that a quality closure is easily achieved.
  • the flexible packaging has a sealed wall, for example made from sheets 1 and 2 of heat-sealable plastic material associated with each other on three sides by a weld 3 so that the fourth side forms an edge 4 defining an opening of the packaging.
  • this packaging comprises an elastic compressible volume, generally designated at 5, formed by a strip of flexible material 6, for example a strip of heat-sealable plastic material, fixed to the wall 2 of the packaging to the interior thereof and surrounding an elastic member 7 formed by a block of open cell foam.
  • the compressible volume 5 comprises air passage means formed by holes 8 made on two opposite sides of the volume 5, a series of holes 8 being directed towards the opening of the packaging and the other series of holes 8 being facing the bottom of the package. Note in Figure 1 that the compressible volume 5 extends near the edge 4 of the package while being spaced therefrom.
  • the packaging thus comprises a band between the compressible volume 5 and the edge 4 of the packaging along which the sheets 1 and 2 can be applied against one another.
  • the device for evacuating the packaging comprises a base 9, for example a parallelepiped box on which the part of the flexible packaging comprising the compressible volume 5 can be placed.
  • the base comprises means for sealing the packaging, for example, in the case of a heat-sealable packaging, the sealing means are formed by a heating resistor 10 carried by the upper face of the base 9 and whose l electricity supply is controlled by a switch 11 also carried by the base.
  • the base On a side opposite to the heating resistor 10, the base comprises vertical lugs 12 on which is articulated a first support member comprising arms 13 pivotally mounted on the lugs 12 and joined together by a support plate 14.
  • a handle 15 is attached to the support plate 14.
  • a first sealing member 16, for example a strip of foam, is fixed to the support plate 14 and extends transversely to the base on one side of the compressible volume opposite the opening of packaging.
  • the support plate 14 forming the first support member comprises a support surface 17 arranged to come to bear on the compressible volume 5 when the first support member is moved towards the packaging.
  • the support surface 17 is set back relative to the first sealing member 16.
  • a second support member is also pivotally mounted on the vertical lugs 12.
  • This second support member has arms 18 connected by a plate 19 On its underside, the plate 19 carries a second sealing member 20 extending transversely to the base on one side of the compressible volume 5 facing the opening of the packaging.
  • the plate 19 also carries a strip of flexible material 21 which keeps the end of the packaging applied to the heating resistor 10 when the second support member is held against the packaging.
  • the first and the second support member being raised, the end of a package containing products is placed on the base 9 as shown in FIG. 3, that is to say with the compressible volume 5 placed at a distance from the pivot axis of the first and second support member between the distance of the first sealing member 16 and the second sealing member 20 relative to this same pivot axis.
  • the handle 15 is then lowered, in this movement the first sealing member 16 first comes into contact with the packaging and applies the sheets 1 and 2 to each other so that it provides a seal between the part of the packaging containing the products and the compressible volume 5.
  • the support surface 17 of the support plate 14 crushes the compressible volume 5 and air escapes from the packaging as shown in FIG. 4.
  • the second support member is then lowered so that the second sealing member 20 keeps the sheets attached to one another. on the opposite side to the first sealing member 16 with respect to the compressible volume 5.
  • the first support member is then raised and the compressible volume 5 returns to its initial shape by sucking air into the part of the bag containing the products as shown in FIG. 5. It can therefore be seen that by alternately operating the first support member and the second support member, the air contained in the packaging part containing the products is gradually pumped until the moment when the desired degree of vacuum has been obtained. While maintaining the second support member applied against the base 9, the switch 11 is then operated to heat the resistor 10 and thus seal the packaging.
  • the compressible volume 5 is not necessarily permanently fixed in the packaging and can be produced in the form of a simple block of open-cell foam put in place when the packaging is closed so that that it can be recovered when the packaging is reopened.
  • the device has been shown with support members pivotally mounted, provision may be made for a device comprising balusters on which the support members are slidably mounted.
  • connecting means for example rods or cams between the first and the second support member in order to ensure alternating support of the two support members; at least one of the support members that can also be returned to a position by a return spring or equivalent means.
  • the welding device can also be placed on one side of the second sealing member opposite the edge of the packaging. In this case the compressible volume 5 can be recovered immediately after welding for immediate use in new packaging.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Packages (AREA)
  • Vacuum Packaging (AREA)

Abstract

L'emballage selon l'invention comporte un bord 4 délimitant une ouverture et un organe de mise sous vide comprenant un volume 5 compressible de façon élastique ayant une paroi comprenant des moyens de passage d'air 8 et disposé à l'intérieur de l'emballage à proximité du bord 4 de l'emballage tout en étant espacé de celui-ci. L'invention concerne également un dispositif permettant une compression et une détente alternées du volume compressible tout en assurant une liaison alternée de celui-ci avec l'intérieur du sac ou avec l'extérieur.The packaging according to the invention comprises an edge 4 delimiting an opening and a vacuum device comprising a resiliently compressible volume 5 having a wall comprising air passage means 8 and disposed inside the packaging near the edge 4 of the packaging while being spaced therefrom. The invention also relates to a device allowing alternating compression and expansion of the compressible volume while ensuring an alternating connection of the latter with the inside of the bag or with the outside.

Description

La présente invention concerne un emballage souple comportant un organe de mise sous vide et un dispositif pour la mise sous vide d'un tel emballage.The present invention relates to a flexible packaging comprising a vacuum device and a device for evacuating such packaging.

On connaît déjà des emballages souples comportant un organe de mise sous vide. En particulier, le brevet français publié sous le numéro 2 539 709 décrit un emballage à paroi souple et à fermeture étanche contenant une poche auxiliaire limitant un volume qui est vide d'air avant l'utilisation, cette poche étant munie d'un moyen de mise en communication avec l'emballage lorsque celui-ci a été fermé de façon étanche. Ainsi, lorsque la poche auxiliaire est mise en communication avec le sac, elle prélève une partie de l'air contenu dans l'emballage et réalise ainsi un vide partiel améliorant la conservation des produits contenus dans l'emballage. Toutefois, on remarque que dans ce type d'emballage la poche auxiliaire ne peut effectuer qu'un seul pompage de l'air contenu dans l'emballage et il est donc nécessaire de prévoir une poche auxiliaire dont les dimensions sont proportionnées au degré de vide que l'on souhaite obtenir dans l'emballage. Une telle con­trainte est souvent incompatible avec les dimensions que l'on souhaite donner à l'emballage.Flexible packaging is already known which includes a vacuum device. In particular, the French patent published under the number 2,539,709 describes a packaging with a flexible wall and sealed closure containing an auxiliary pocket limiting a volume which is empty of air before use, this pocket being provided with a means of communication with the packaging when it has been sealed. Thus, when the auxiliary pocket is placed in communication with the bag, it takes part of the air contained in the packaging and thus achieves a partial vacuum improving the preservation of the products contained in the packaging. However, it is noted that in this type of packaging the auxiliary bag can only carry out one pumping of the air contained in the packaging and it is therefore necessary to provide an auxiliary bag whose dimensions are proportional to the degree of vacuum. that we want to get in the packaging. Such a constraint is often incompatible with the dimensions that one wishes to give to the packaging.

Un but de la présente invention est de proposer un emballage comportant un organe de mise sous vide pouvant effectuer plusieurs pompages ainsi qu'un dispositif pour la mise sous vide de cet emballage.An object of the present invention is to provide a packaging comprising a vacuum device that can perform several pumping operations as well as a device for evacuating this packaging.

En vue de la réalisation de ce but, on prévoit selon l'invention un emballage souple à paroi étanche compor­tant un bord délimitant une ouverture et un organe de mise sous vide, dans lequel l'organe de mise sous vide comporte un volume compressible de façon élastique ayant une paroi comprenant des moyens de passage d'air et disposé à l'intérieur de l'emballage à proximité du bord de l'emballage tout en étant espacé de celui-ci.In order to achieve this goal, there is provided according to the invention a flexible packaging with a sealed wall comprising an edge delimiting an opening and a vacuum device, in which the vacuum device comprises a volume which can be compressed elastic having a wall comprising air passage means and disposed inside the packaging near the edge of the packaging while being spaced from it.

Ainsi le volume compressible est utilisé pour réaliser plusieurs cycles de pompage en effectuant pour chaque cycle de pompage une compression du volume compressi­ble tout en isolant celui-ci de l'intérieur de l'emballage puis un relâchement du volume compressible tout en fermant l'ouverture de l'emballage de façon étanche et en mettant simultanément l'intérieur de l'emballage en communication avec le volume compressible.Thus the compressible volume is used to carry out several pumping cycles by carrying out for each pumping cycle a compression of the compressible volume while isolating it from the inside of the packaging and then a relaxation of the compressible volume while closing the opening. of the packaging in a sealed manner and simultaneously placing the interior of the packaging in communication with the compressible volume.

Selon un mode de réalisation préféré de l'invention, le volume compressible est formé par une bande de matière souple fixée à la paroi de l'emballage à l'intérieur de celui-ci et entourant un organe élastique, de préférence un bloc de mousse à cellules ouvertes. Ainsi le volume compressible est maintenu en permanence à un endroit requis.According to a preferred embodiment of the invention, the compressible volume is formed by a strip of flexible material fixed to the wall of the packaging inside of it and surrounding an elastic member, preferably a block of foam. with open cells. Thus the compressible volume is permanently maintained in a required location.

Selon un autre aspect de l'invention, on prévoit un dispositif pour la mise sous vide de l'emballage selon l'invention, ce dispositif comportant un socle pour recevoir une extrémité de l'emballage souple adjacente à l'ouverture et contenant le volume compressible, un premier organe d'appui mobile sur lequel est fixé un premier organe d'étan­chéité s'étendant transversalement au socle d'un côté du volume compressible opposé à l'ouverture de l'emballage, ce premier organe d'appui comprenant une surface d'appui disposée pour venir en appui sur le volume compressible lorsque le premier organe d'appui est déplacé vers l'embal­lage, cette surface d'appui étant en retrait par rapport au premier organe d'étanchéité, et un second organe d'appui mobile sur lequel est fixé un second organe d'étanchéité s'étendant transversalement au socle d'un côté du volume compressible tourné vers l'ouverture de l'emballage. Ainsi, une application alternée du premier organe d'appui et du second organe d'appui contre le socle du dispositif réalise les cycles de pompage décrits ci-dessus.According to another aspect of the invention, there is provided a device for evacuating the packaging according to the invention, this device comprising a base for receiving one end of the flexible packaging adjacent to the opening and containing the volume compressible, a first movable support member on which is fixed a first sealing member extending transversely to the base on one side of the compressible volume opposite the opening of the packaging, this first support member comprising a support surface arranged to come to bear on the compressible volume when the first support member is moved towards the packaging, this support surface being set back with respect to the first sealing member, and a second support member mobile support on which is fixed a second sealing member extending transversely to the base on one side of the compressible volume facing the opening of the packaging. Thus, an alternating application of the first support member and the second support member against the base of the device achieves the pumping cycles described above.

Selon une version avantageuse de cet aspect de l'invention, le dispositif comporte des moyens de fermeture étanche de l'emballage. Ainsi, lorsque le pompage désiré a été réalisé, l'emballage est fermé de façon étanche et reste sous vide.According to an advantageous version of this aspect of the invention, the device comprises means for sealing the packaging. Thus, when the desired pumping has been carried out, the packaging is sealed and remains under vacuum.

Selon encore un autre aspect avantageux de l'inven­tion, les moyens de fermeture étanche s'étendent parallèle­ment au second organe d'étanchéité entre le second organe d'étanchéité et le bord de l'emballage. Ainsi, le second organe d'étanchéité maintient les parois de l'emballage étroitement appliquées l'une contre l'autre pendant la fermeture de sorte qu'une fermeture de qualité est réalisée de façon aisée.According to yet another advantageous aspect of the invention, the sealing means extend parallel to the second sealing member between the second sealing member and the edge of the packaging. Thus, the second sealing member keeps the walls of the packaging tightly applied against each other during closing so that a quality closure is easily achieved.

D'autres caractéristiques et avantages de l'inven­tion apparaîtront encore à la lecture de la description qui suit d'un mode de réalisation particulier non limitatif en liaison avec les dessins ci-joints parmi lesquels:

  • - la figure 1 est une vue en perspective écorchée d'un mode de réalisation de l'emballage selon l'invention.
  • - la figure 2 est une vue en perspective du dispo­sitif de mise sous vide selon l'invention.
  • - la figure 3 est une vue en coupe schématique selon la ligne III-III de la figure 2 du dispositif selon l'invention dans une première position.
  • - la figure 4 est une vue en coupe identique à la figure 3 pour une seconde position du dispositif.
  • - la figure 5 est une vue en coupe identique à celle de la figure 3 pour une troisième position du dispo­sitif.
Other characteristics and advantages of the invention will appear on reading the following description of a particular non-limiting embodiment in conjunction with the attached drawings, among which:
  • - Figure 1 is a cutaway perspective view of an embodiment of the packaging according to the invention.
  • - Figure 2 is a perspective view of the vacuum device according to the invention.
  • - Figure 3 is a schematic sectional view along line III-III of Figure 2 of the device according to the invention in a first position.
  • - Figure 4 is a sectional view identical to Figure 3 for a second position of the device.
  • - Figure 5 is a sectional view identical to that of Figure 3 for a third position of the device.

En référence à la figure 1, l'emballage souple selon l'inveniton comporte une paroi étanche, par exemple réalisée à partir de feuilles 1 et 2 de matière plastique thermo-soudables associées l'une à l'autre sur trois côtés par une soudure 3 de sorte que le quatrième côté forme un bord 4 délimitant une ouverture de l'emballage. Selon l'invention, cet emballage comporte un volume compressible de façon élastique, généralement désigné en 5, formé par une bande de matière souple 6, par exemple une bande de matière plastique thermo-soudable, fixée à la paroi 2 de l'emballage à l'intérieur de celui-ci et entourant un organe élastique 7 formé par un bloc de mousse à cellules ouvertes. Le volume compressible 5 comporte des moyens de passage d'air formés par des trous 8 réalisés sur deux côtés opposés du volume 5, une série de trous 8 étant dirigée vers l'ouver­ture de l'emballage et l'autre série de trous 8 étant tournée vers le fond de l'emballage. On remarque sur la figure 1 que le volume compressible 5 s'étend à proximité du bord 4 de l'emballage tout en étant espacé de celui-ci. L'emballage comporte ainsi une bande comprise entre le volume compressi­ble 5 et le bord 4 de l'emballage le long de laquelle les feuilles 1 et 2 peuvent être appliquées l'une contre l'autre.Referring to Figure 1, the flexible packaging according to the invention has a sealed wall, for example made from sheets 1 and 2 of heat-sealable plastic material associated with each other on three sides by a weld 3 so that the fourth side forms an edge 4 defining an opening of the packaging. According to the invention, this packaging comprises an elastic compressible volume, generally designated at 5, formed by a strip of flexible material 6, for example a strip of heat-sealable plastic material, fixed to the wall 2 of the packaging to the interior thereof and surrounding an elastic member 7 formed by a block of open cell foam. The compressible volume 5 comprises air passage means formed by holes 8 made on two opposite sides of the volume 5, a series of holes 8 being directed towards the opening of the packaging and the other series of holes 8 being facing the bottom of the package. Note in Figure 1 that the compressible volume 5 extends near the edge 4 of the package while being spaced therefrom. The packaging thus comprises a band between the compressible volume 5 and the edge 4 of the packaging along which the sheets 1 and 2 can be applied against one another.

En référence à la figure 2, le dispositif pour la mise sous vide de l'emballage selon l'invention comporte un socle 9, par exemple un caisson parallélépipédique sur lequel on peut disposer la partie de l'emballage souple comprenant le volume compressible 5. Le socle comporte des moyens de fermeture étanche de l'emballage, par exemple, dans le cas d'un emballage thermo-soudable, les moyens de fermeture étanche sont formés par une résistance chauf­fante 10 portée par la face supérieure du socle 9 et dont l'alimentation en électricité est commandée par un interrup­teur 11 également porté par le socle.With reference to FIG. 2, the device for evacuating the packaging according to the invention comprises a base 9, for example a parallelepiped box on which the part of the flexible packaging comprising the compressible volume 5 can be placed. The base comprises means for sealing the packaging, for example, in the case of a heat-sealable packaging, the sealing means are formed by a heating resistor 10 carried by the upper face of the base 9 and whose l electricity supply is controlled by a switch 11 also carried by the base.

Sur un côté opposé à la résistance chauffante 10, le socle comporte des pattes verticales 12 sur lesquelles est articulé un premier organe d'appui comprenant des bras 13 montés pivotants sur les pattes 12 et réunis entre eux par une plaque d'appui 14. Une poignée 15 est fixée à la plaque d'appui 14. Un premier organe d'étanchéité 16, par exemple une bande de mousse, est fixé à la plaque d'appui 14 et s'étend transversalement au socle d'un côté du volume compressible opposé à l'ouverture de l'emballage. La plaque d'appui 14 formant le premier organe d'appui comprend une surface d'appui 17 disposée pour venir en appui sur le volume compressible 5 lorsque le premier organe d'appui est déplacé vers l'emballage. La surface d'appui 17 est en retrait par rapport au premier organe d'étanchéité 16. Un second organe d'appui est également monté pivotant sur les pattes verticales 12. Ce second organe d'appui comporte des bras 18 reliés par une plaque 19. Sur sa face inférieure, la plaque 19 porte un second organe d'étanchéité 20 s'étendant transversalement au socle d'un côté du volume compressible 5 tourné vers l'ouverture de l'emballage. La plaque 19 porte également une bande en matière souple 21 qui maintient l'extrémité de l'emballage appliquée sur la résistance chauffante 10 lorsque le second organe d'appui est maintenu contre l'emballage.On a side opposite to the heating resistor 10, the base comprises vertical lugs 12 on which is articulated a first support member comprising arms 13 pivotally mounted on the lugs 12 and joined together by a support plate 14. A handle 15 is attached to the support plate 14. A first sealing member 16, for example a strip of foam, is fixed to the support plate 14 and extends transversely to the base on one side of the compressible volume opposite the opening of packaging. The support plate 14 forming the first support member comprises a support surface 17 arranged to come to bear on the compressible volume 5 when the first support member is moved towards the packaging. The support surface 17 is set back relative to the first sealing member 16. A second support member is also pivotally mounted on the vertical lugs 12. This second support member has arms 18 connected by a plate 19 On its underside, the plate 19 carries a second sealing member 20 extending transversely to the base on one side of the compressible volume 5 facing the opening of the packaging. The plate 19 also carries a strip of flexible material 21 which keeps the end of the packaging applied to the heating resistor 10 when the second support member is held against the packaging.

Le fonctionnement du dispositif selon l'invention est le suivant :The operation of the device according to the invention is as follows:

Le premier et le second organe d'appui étant relevés, l'extrémité d'un emballage contenant des produits est disposée sur le socle 9 comme représenté sur la figure 3, c'est-à-dire avec le volume compressible 5 disposé à une distance de l'axe de pivotement du premier et du second organe d'appui comprise entre la distance du premier organe d'étanchéité 16 et du second organe d'étanchéité 20 par rapport à ce même axe de pivotement. La poignée 15 est alors abaissée, dans ce mouvement le premier organe d'étan­chéité 16 vient tout d'abord en contact avec l'emballage et applique les feuilles 1 et 2 l'une sur l'autre de sorte qu'il réalise une étanchéité entre la partie de l'emballage contenant les produits et le volume compressible 5. Lorsque l'on poursuit le mouvement de la poignée 15 vers le socle 9, la surface d'appui 17 de la plaque d'appui 14 écrase le volume compressible 5 et de l'air s'échappe de l'emballage comme représenté sur la figure 4. On abaisse alors le second organe d'appui afin que le second organe d'étanchéité 20 maintienne les feuilles accolées l'une à l'autre du côté opposé au premier organe d'étanchéité 16 par rapport au volume compressible 5. On relève ensuite le premier organe d'appui et le volume compressible 5 reprend sa forme initiale en aspirant de l'air dans la partie de sac contenant les produits comme représenté sur la figure 5. On constate donc qu'en manoeuvrant alternativement le premier organe d'appui et le second organe d'appui on pompe progressivement l'air contenu dans la partie d'emballage contenant les produits jusqu'au moment où l'on a obtenu le degré de vide souhaité. Tout en maintenant le second organe d'appui appli­qué contre le socle 9, on manoeuvre alors l'interrupteur 11 pour faire chauffer la résistance 10 et réaliser ainsi une fermeture étanche de l'emballage.The first and the second support member being raised, the end of a package containing products is placed on the base 9 as shown in FIG. 3, that is to say with the compressible volume 5 placed at a distance from the pivot axis of the first and second support member between the distance of the first sealing member 16 and the second sealing member 20 relative to this same pivot axis. The handle 15 is then lowered, in this movement the first sealing member 16 first comes into contact with the packaging and applies the sheets 1 and 2 to each other so that it provides a seal between the part of the packaging containing the products and the compressible volume 5. When the movement of the handle 15 towards the base 9 is continued, the support surface 17 of the support plate 14 crushes the compressible volume 5 and air escapes from the packaging as shown in FIG. 4. The second support member is then lowered so that the second sealing member 20 keeps the sheets attached to one another. on the opposite side to the first sealing member 16 with respect to the compressible volume 5. The first support member is then raised and the compressible volume 5 returns to its initial shape by sucking air into the part of the bag containing the products as shown in FIG. 5. It can therefore be seen that by alternately operating the first support member and the second support member, the air contained in the packaging part containing the products is gradually pumped until the moment when the desired degree of vacuum has been obtained. While maintaining the second support member applied against the base 9, the switch 11 is then operated to heat the resistor 10 and thus seal the packaging.

Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation. En particulier, le volume compressible 5 n'est pas nécessairement fixé de façon permanente dans l'emballage et peut être réalisé sous forme d'un simple bloc de mousse à cellules ouvertes mis en place au moment de la fermeture de l'emballage de sorte qu'il peut être récupéré lors de la réouverture de l'emballage. De même, bien que le dispositif ait été représenté avec des organes d'appui montés de façon pivotante, on peut prévoir un dispo­sitif comportant des colonnettes sur lesquelles les organes d'appui sont montés de façon coulissante.Of course, the invention is not limited to the embodiment described and it is possible to make variant embodiments. In particular, the compressible volume 5 is not necessarily permanently fixed in the packaging and can be produced in the form of a simple block of open-cell foam put in place when the packaging is closed so that that it can be recovered when the packaging is reopened. Similarly, although the device has been shown with support members pivotally mounted, provision may be made for a device comprising balusters on which the support members are slidably mounted.

Par ailleurs, on peut prévoir des moyens de liaison, par exemple des biellettes ou des cames entre le premier et le second organe d'appui afin d'assurer un appui alterné des deux organes d'appui; au moins l'un des organes d'appui pouvant en outre être rappelé dans une position par un ressort de rappel ou un moyen équivalent.Furthermore, one can provide connecting means, for example rods or cams between the first and the second support member in order to ensure alternating support of the two support members; at least one of the support members that can also be returned to a position by a return spring or equivalent means.

On peut également disposer le dispositif de soudage surun côté du second organe d'étanchéité opposé au bord de l'emballage. Dans ce cas le volume compressible 5 peut être récupéré immé­diatement après le soudage en vue de l'utiliser immédiatement dans un nouvel emballage.The welding device can also be placed on one side of the second sealing member opposite the edge of the packaging. In this case the compressible volume 5 can be recovered immediately after welding for immediate use in new packaging.

Claims (6)

1. Emballage souple à paroi étanche comportant un bord délimitant une ouverture et un organe de mise sous vide caractérisé en ce que l'organe de mise sous vide compor­te un volume (5) compressible de façon élastique ayant une paroi comprenant des moyens de passage d'air et disposé à l'intérieur de l'emballage à proximité du bord (4) de l'em­ballage tout en étant espacé de celui-ci.1. Flexible packaging with a sealed wall comprising an edge delimiting an opening and a vacuum member characterized in that the vacuum member comprises an elastically compressible volume (5) having a wall comprising passage means d air and disposed inside the package near the edge (4) of the package while being spaced therefrom. 2. Emballage souple selon la revendication 1 caractérisé en ce que le volume compressible (5) est formé par une bande de matière souple (6) fixée à la paroi de l'emballage à l'intérieur de celui-ci et entourant un organe élastique (7).2. Flexible packaging according to claim 1 characterized in that the compressible volume (5) is formed by a strip of flexible material (6) fixed to the wall of the packaging inside thereof and surrounding an elastic member (7). 3. Emballage souple selon la revendication 2 caractérisé en ce que l'organe élastique est un bloc de mousse (7) à cellules ouvertes.3. Flexible packaging according to claim 2 characterized in that the elastic member is a block of foam (7) with open cells. 4. Dispositif pour la mise sous vide d'un emballage selon l'une des revendications 1 à 3 caractérisé en ce qu'il comporte un socle (9) pour recevoir une extrémité de l'emballage souple adjacente à l'ouverture et contenant le volume compressible, un premier organe d'appui mobile sur lequel est fixé un premier organe d'étanchéité (16) s'étendant transversalement au socle d'un côté du volume compressible opposé à l'ouverture de l'emballage, ce premier organe d'appui comprenant une surface d'appui (17) disposée pour venir en appui sur le volume compressible (5) lorsque le premier organe d'appui est déplacé vers l'emballage, cette surface d'appui (17) étant en retrait par rapport au premier organe d'étanchéité (16), et un second organe d'appui mobile sur lequel est fixé un second organe d'étan­chéité (20) s'étendant transversalement au socle d'un côté du volume compressible (5) tourné vers l'ouverture de l'em­ballage.4. Device for evacuating a packaging according to one of claims 1 to 3 characterized in that it comprises a base (9) for receiving one end of the flexible packaging adjacent to the opening and containing the compressible volume, a first movable support member on which is fixed a first sealing member (16) extending transversely to the base on one side of the compressible volume opposite the opening of the packaging, this first member support comprising a support surface (17) arranged to come to bear on the compressible volume (5) when the first support member is moved towards the packaging, this support surface (17) being set back relative to to the first sealing member (16), and a second movable support member on which is fixed a second sealing member (20) extending transversely to the base on one side of the compressible volume (5) turned towards the opening of the packaging. 5. Dispositif selon la revendication 4 caractérisé en ce qu'il comporte des moyens de fermeture étanche (10) de l'emballage.5. Device according to claim 4 characterized in that it comprises sealing means (10) of the packaging. 6. Dispositif selon la revendication 5 caractérisé en ce que les moyens de fermeture étanche (10) s'étendent parallèlement au second organe d'étanchéité (20) entre le second organe d'étanchéité et le bord (4) de l'emballage.6. Device according to claim 5 characterized in that the sealing means (10) extend parallel to the second sealing member (20) between the second sealing member and the edge (4) of the package.
EP87401924A 1986-08-26 1987-08-24 Flexible package comprising an evacuation component and a system for creating a vacuum in this package Withdrawn EP0258145A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8612070 1986-08-26
FR8612070A FR2603257B1 (en) 1986-08-26 1986-08-26 FLEXIBLE PACKAGING COMPRISING A VACUUM ELEMENT AND DEVICE FOR VACUUMING THIS PACKAGE

Publications (1)

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EP0258145A1 true EP0258145A1 (en) 1988-03-02

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EP87401924A Withdrawn EP0258145A1 (en) 1986-08-26 1987-08-24 Flexible package comprising an evacuation component and a system for creating a vacuum in this package

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US (1) US4765125A (en)
EP (1) EP0258145A1 (en)
FR (1) FR2603257B1 (en)

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US6467242B1 (en) * 2001-05-14 2002-10-22 Chiou Shiang Huang Heat-sealing apparatus
WO2006001568A1 (en) * 2004-03-11 2006-01-05 Joon-Young Ahn A vacuum tray for vacuum packing
US20060053749A1 (en) * 2004-09-14 2006-03-16 Scanlan Gregory P Airway insert for vacuum sealing plastic bag
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US8181772B2 (en) * 2007-07-02 2012-05-22 Purdue Pharma L.P. Dispenser with corner latches
EP3113839B1 (en) * 2014-03-05 2020-03-18 Medizinische Hochschule Hannover Medical implant, medical device and method for making a medical implant

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US4295566A (en) * 1980-05-07 1981-10-20 Becton, Dickinson And Company Air-evacuated package with vacuum integrity indicator means
US4418514A (en) * 1980-10-06 1983-12-06 Spann Donald C Orthopedic support package and method

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WO2006125427A3 (en) * 2005-05-25 2007-04-19 Robert Lang Container which may be evacuated and method for evacuation thereof

Also Published As

Publication number Publication date
FR2603257B1 (en) 1988-11-25
FR2603257A1 (en) 1988-03-04
US4765125A (en) 1988-08-23

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