EP2774873B1 - Tray with resealable lid - Google Patents

Tray with resealable lid Download PDF

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Publication number
EP2774873B1
EP2774873B1 EP14158034.0A EP14158034A EP2774873B1 EP 2774873 B1 EP2774873 B1 EP 2774873B1 EP 14158034 A EP14158034 A EP 14158034A EP 2774873 B1 EP2774873 B1 EP 2774873B1
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EP
European Patent Office
Prior art keywords
tray
peripheral flange
outer portion
wall
peripheral
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.)
Active
Application number
EP14158034.0A
Other languages
German (de)
French (fr)
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EP2774873A1 (en
Inventor
Antoine Beaufort
Denis Pitiot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CGL Pack Service SAS
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CGL Pack Service SAS
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Publication date
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Publication of EP2774873A1 publication Critical patent/EP2774873A1/en
Application granted granted Critical
Publication of EP2774873B1 publication Critical patent/EP2774873B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2072—Mechanical means
    • B65D77/2088—Mechanical means attached to the cover
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2072—Mechanical means
    • B65D77/2088—Mechanical means attached to the cover
    • B65D77/2092—Mechanical means attached to the cover the means being a part initially broken from the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2083—Lines of weakness or apertures in container flange

Definitions

  • the present invention relates to trays for containing food, and more particularly trays which are closed by a lid.
  • cap to close the trays is particularly advantageous because it allows to limit the cost of manufacturing trays and significantly reduce the environmental impact trays.
  • the repositionable covers were then developed, in order to propose a tray without lid with a lid, retained by pinching or repositionable adhesive, which can close the tray again after a first opening.
  • the repositionable covers were then developed, in order to propose a tray without lid with a lid, retained by pinching or repositionable adhesive, which can close the tray again after a first opening.
  • a sealable tray comprising retaining means for selectively fixing to the outer face of the lateral peripheral wall a movable outer portion of peripheral sidewalk remaining integral with the lid.
  • These retaining means comprise curb latching means and wall latching means.
  • the clipping means of the sidewalk are constituted by a rib and the wall latching means are constituted by a groove adapted to receive the rib to keep the outer portion movable peripheral sidewalk in a folded position.
  • the groove is provided in the upper part of the lateral peripheral wall, in the immediate vicinity of the peripheral sidewalk.
  • a first problem proposed by the present invention is to design a tray for containing food, which is sealable, which can be closed more easily and reliably after partial opening of the lid, whose environmental impact is limited, and which is inexpensive to manufacture.
  • the invention provides a tray for containing food, according to claim 1.
  • a tray for containing food does not include a lid. Its environmental impact is therefore reduced. Its manufacturing cost is also lower.
  • the movable outer portion of peripheral sidewalk remains integral with the lid and is a gripping means facilitating the traction of the lid for its opening.
  • the retaining means constitute specific mechanical means for closing the operculum previously partially open and maintain the lid in a closed position in which food contained in the tray can be stored for an additional period.
  • Snapping is an effective method to firmly hold the seal in the closed position.
  • the latching means are easy and inexpensive to make, easy to implement, and require the presence of any other material.
  • the gap between the wall rib and the peripheral sidewalk is chosen so as to allow sufficient vertical movement of the free edge above the wall rib under the action of a latching force, to ensure placement of the entire free edge above the wall ridge, even in the presence of a detent force exerted on only a portion of the movable outer portion.
  • the movable outer portion of the peripheral sidewalk and the fixed inner portion of the peripheral sidewalk are integral with each other in only contact points spaced from each other, advantageously at two end points of contact with each other. peripheral sidewalk.
  • the tray fulfills its role even if it consists of a material that breaks easily. This broadens the range of materials used to make the tray.
  • the movable outer portion of the peripheral sidewalk and the fixed inner portion of the peripheral sidewalk are shaped so as to be disconnected from one another by sectioning along a break line.
  • the movable outer portion of peripheral sidewalk comprises a sidewalk groove, developing along its length.
  • the peripheral sidewalk further comprises gripping ears of the tray.
  • the cover is provided to remain attached to at least one portion of the fixed inner portion of peripheral sidewalk, this section being advantageously away from the outer movable portion of peripheral sidewalk.
  • the tray further comprises a lid integral with the tray by attachment to the peripheral sidewalk.
  • the food contained in the tray is thus preserved according to food standards.
  • the tray has a substantially rectangular shape, or a substantially circular shape.
  • the tray is made by thermoforming a sheet of thermoformable material of about 0.4 mm thick, or by injection molding.
  • Thermoforming is a widespread, simple and inexpensive packaging manufacturing technique.
  • the tray is made of polyester, polypropylene, polyvinyl chloride, amorphous polyethylene terephthalate, or polylactic acid.
  • These food compatible materials make the tray usable for holding food.
  • these materials are transparent and allow the consumer to check the condition of the food he is about to buy.
  • FIGS. 1 to 3 illustrate a tray 1 according to a preferred embodiment of the invention "snap-fit”.
  • the tray 1 comprises gripping ears that extend from the peripheral sidewalk.
  • the realization of these gripping lugs requires only a simple modification of the thermoforming mold.
  • the tray 1 is substantially rectangular in shape with rounded corners, with two small sides L1 and L3 and two long sides L2 and L4.
  • the tray 1 comprises a cavity 2, limited by a lateral peripheral wall 3 and a bottom 4, and open at a main opening 5 opposite the bottom 4.
  • a peripheral sidewalk 6 borders the main opening 5 and is able to receive a lid 7 ( Figures 2 and 3 ) to close the main opening 5.
  • the peripheral sidewalk 6 is shaped according to a sealing plane P, and it comprises a movable outer portion 6b and a fixed inner portion 6a.
  • the movable outer portion 6b is shaped so that it can be moved away from the first sealing plane P in a first direction D1 ( figure 2 ) for the opening of the tray (dashed representation on the figure 2 ).
  • the movable outer portion 6b of peripheral sidewalk 6 has a free edge 60 ( figure 2 ) and is shaped to be further movable away from the first sealing plane P in a second direction D2 ( figure 3 ), opposite direction D1, to a folded position ( figure 3 ) in which its free edge 60 comes into contact with the external face 30 of the lateral peripheral wall 3.
  • the cover 7 is not represented on the figure 1 .
  • this figure illustrates the tray 1 alone, before any use.
  • the cover 7 is shown in a closed position prior to being in the open position (dashed).
  • the lid 7 usually has a thickness between about 30 and 70 microns, preferably about 50 microns.
  • the bottom 4 comprises a particular structure that has a role of stiffening the tray 1.
  • this bottom structure does not participate solving the technical problem of the invention. It is not essential here and could be omitted.
  • the cover 7 closes in the initial position of the figure 2 (not dashed) the main opening 5 of the tray 1 being sealed along the entire length of the peripheral sidewalk 6 according to a sealing area.
  • the sealing zone comprises a first sealing zone ensuring the sealing of the cap 7 on the fixed inner portion 6a, and a second sealing zone ensuring the sealing of the cap 7 on the movable outer portion 6b of peripheral sidewalk 6, to ensure the preservation of the food contained in the tray 1 (not shown) under the conditions of conservation required by the food standards.
  • the first sealing zone comprises a reinforced sealing zone along the entire length of the short side L1.
  • the small side L1 is opposite the small side L3 which carries the movable outer portion 6b.
  • a sidewalk groove 10 develops along the length of the movable outer portion 6b of the peripheral sidewalk 6.
  • This sidewalk groove 10 has the effect of stiffening the movable outer portion 6b of the peripheral sidewalk 6.
  • the movable outer portion 6b peripheral curb 6 can be reversibly attached to the side peripheral wall 3 by retaining means.
  • a wall rib 11 is provided on the outer face 30 of the lateral peripheral wall 3, and constitutes wall latching means.
  • the free edge 60 is shaped to cooperate with the wall rib 11 to maintain the movable outer portion 6b of peripheral sidewalk 6 in the folded position ( figure 3 ).
  • the free edge 60 constitutes curb latching means.
  • the movable outer portion 6b and the fixed inner portion 6a are shaped so that they can be separated from one another by severing a rupture line R ( figure 1 ). However, it can be provided that the movable outer portion 6b and the fixed inner portion 6a are initially integral with each other only by two end points of contact in the initial position, with possibly an intermediate point of sectional contact.
  • the tray 1 was previously filled with food to keep, and was closed by a seal according to food standards.
  • a consumer wishing to consume the food contained in the tray 1 disengages the movable outer portion 6b from the fixed inner portion 6a, the movable outer portion 6b being secured to the lid 7. The user then partially opens the tray 1 by exerting a force on the movable outer portion 6b in the direction D1 ( figure 2 ).
  • the cover 7 remains permanently attached to the tray 1 by the reinforced sealing zone according to at least the L1 side.
  • the consumer takes the quantity of food desired.
  • the user folds the lid 7 on the peripheral sidewalk 6 and exerts a rotation bias on the movable outer portion 6b in the direction D2 ( figure 3 ) to bring it to the folded position.
  • the user exerts a latching force F ( figure 3 ) so as to engage the free edge 60 of the movable outer portion 6b above the wall rib 11 to produce the latching.
  • the user can exert the latching force F at a sufficient intensity. to excessively move the free edge 60 above the wall rib 11 towards the peripheral sidewalk 6, so that, after release of the detent force F, the free edge 60 engages along its entire length on the wall rib 11.
  • the cover 7 is then firmly held in the closed position by this latching.
  • the consumer can place in the refrigerator the tray 1 and closed to store the rest of the food.
  • the latching is provided to mechanically hold the lid 7 sufficiently to be able to stack other packaging on the lid 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Description

La présente invention concerne les barquettes pour contenir des aliments, et plus particulièrement les barquettes qui sont fermées par un opercule.The present invention relates to trays for containing food, and more particularly trays which are closed by a lid.

L'utilisation d'un opercule pour fermer les barquettes est particulièrement avantageuse car cela permet de limiter le coût de fabrication des barquettes et de réduire considérablement l'impact environnemental des barquettes.The use of a cap to close the trays is particularly advantageous because it allows to limit the cost of manufacturing trays and significantly reduce the environmental impact trays.

Afin de consommer les aliments contenus dans la barquette operculée, un utilisateur doit préalablement ôter l'opercule. Cependant, l'inconvénient de telles barquettes est qu'une fois l'opercule ôté, la barquette ne peut pas être refermée et les aliments n'ayant pas été consommés ne peuvent plus être conservés dans la barquette car la barquette ne peut pas être refermée.In order to consume the food contained in the sealed tray, a user must first remove the lid. However, the disadvantage of such trays is that once the cap removed, the tray can not be closed and food that has not been consumed can not be kept in the tray because the tray can not be closed .

On a alors développé des barquettes fermées à la fois par un opercule et par un couvercle. Ainsi, une fois l'opercule ouvert, la barquette peut être fermée de nouveau grâce au couvercle. Les aliments restant dans la barquette peuvent donc être conservés plus longtemps. Cependant, l'impact environnemental de telles barquettes est trop important et le coût de fabrication est supérieur.We then developed trays closed both by a lid and a lid. Thus, once the lid is open, the tray can be closed again with the lid. The food remaining in the tray can be stored longer. However, the environmental impact of such trays is too important and the manufacturing cost is higher.

On a alors développé les opercules repositionnables, afin de proposer une barquette sans couvercle avec un opercule, retenu par pincement ou colle repositionnable, pouvant fermer de nouveau la barquette après une première ouverture. Ainsi, si tous les aliments contenus dans la barquette n'ont pas été consommés, ils peuvent encore être conservés dans la barquette que l'utilisateur aura refermée en repositionnant correctement l'opercule.The repositionable covers were then developed, in order to propose a tray without lid with a lid, retained by pinching or repositionable adhesive, which can close the tray again after a first opening. Thus, if all the food contained in the tray have not been consumed, they can still be kept in the tray that the user has closed by correctly repositioning the lid.

L'inconvénient de telles barquettes est que, pendant leur stockage dans le réfrigérateur, l'utilisateur ne peut rien poser dessus, car l'opercule repositionnable n'est pas adapté pour soutenir une charge mécanique, l'adhésion de l'opercule repositionné étant insuffisante. Ainsi, il en résulte une grande place perdue.The disadvantage of such trays is that, during storage in the refrigerator, the user can not put anything on it, because the repositionable lid is not adapted to support a mechanical load, the adhesion of the repositioned lid being insufficient. Thus, it results in a large lost place.

Par ailleurs, on connait du document GB 1,128,799 une barquette operculable comprenant des moyens de retenue permettant de fixer sélectivement à la face externe de la paroi périphérique latérale une portion extérieure déplaçable de trottoir périphérique restant solidaire de l'opercule.Moreover, we know of the document GB 1,128,799 a sealable tray comprising retaining means for selectively fixing to the outer face of the lateral peripheral wall a movable outer portion of peripheral sidewalk remaining integral with the lid.

Ces moyens de retenue comprennent des moyens d'encliquetage de trottoir et des moyens d'encliquetage de paroi.These retaining means comprise curb latching means and wall latching means.

Les moyens d'encliquetage de trottoir sont constitués par une nervure et les moyens d'encliquetage de paroi sont constitués par une rainure apte à recevoir la nervure pour maintenir la portion extérieure déplaçable de trottoir périphérique dans une position rabattue.The clipping means of the sidewalk are constituted by a rib and the wall latching means are constituted by a groove adapted to receive the rib to keep the outer portion movable peripheral sidewalk in a folded position.

L'engagement de la nervure dans la rainure n'est pas aisé à réaliser, car il nécessite un positionnement précis. Il en résulte un risque de défaut d'encliquetage.The engagement of the rib in the groove is not easy to achieve because it requires precise positioning. This results in a risk of failure to snap.

On connait également les barquettes des documents US 3,398,877 et US 3,495,759 qui prévoient que les moyens d'encliquetage comprennent une rainure ménagée dans la paroi périphérique latérale et apte à recevoir le bord libre de la portion extérieure déplaçable de trottoir périphérique.We also know the trays of documents US 3,398,877 and US 3,495,759 which provide that the latching means comprise a groove formed in the lateral peripheral wall and adapted to receive the free edge of the movable outer portion of peripheral sidewalk.

La rainure est prévue dans la partie supérieure de la paroi périphérique latérale, à proximité immédiate du trottoir périphérique.The groove is provided in the upper part of the lateral peripheral wall, in the immediate vicinity of the peripheral sidewalk.

La retenue ainsi réalisée n'est pas aisée à réaliser, et elle n'est pas fiable à l'utilisation.The retention thus made is not easy to achieve, and it is not reliable to use.

En effet, pour réaliser l'encliquetage, il convient de faire pénétrer précautionneusement la totalité du bord libre dans la rainure, ce qui n'est pas aisé à réaliser, du fait de la position de la rainure à proximité immédiate du trottoir périphérique qui s'oppose à tout déplacement en excès du bord libre.Indeed, to achieve the latching, it is necessary to carefully penetrate all of the free edge in the groove, which is not easy to achieve, because of the position of the groove in the immediate vicinity of the sidewalk that s opposes any displacement in excess of the free edge.

A défaut de pénétration totale, une partie de bord libre non engagée dans la rainure peut provoquer le dégagement ultérieur du bord libre et l'ouverture intempestive de la barquette. Le document US 3,398,876 décrit une barquette selon le préambule de la revendication 1, avec en particulier des moyens d'encliquetage comprenant des nervures verticales situées à l'écart du trottoir périphérique.In the absence of total penetration, a portion of free edge not engaged in the groove can cause the subsequent release of the free edge and inadvertent opening of the tray. The document US 3,398,876 describes a tray according to the preamble of claim 1, in particular with latching means comprising vertical ribs located away from the peripheral sidewalk.

Un premier problème proposé par la présente invention est de concevoir une barquette pour contenir des aliments, qui soit operculable, qui puisse être refermée de façon plus aisée et fiable après ouverture partielle de l'opercule, dont l'impact environnemental soit limité, et qui soit peu onéreuse à fabriquer.A first problem proposed by the present invention is to design a tray for containing food, which is sealable, which can be closed more easily and reliably after partial opening of the lid, whose environmental impact is limited, and which is inexpensive to manufacture.

On cherche en outre à concevoir une telle barquette dont la forme permette l'empilage complètement emboîté, avant remplissage et fermeture par un opercule.We also seek to design such a tray whose shape allows stacking completely nested, before filling and closure by a cover.

Pour atteindre ces buts ainsi que d'autres, l'invention propose une barquette pour contenir des aliments, selon la revendication 1. Une telle barquette ne comprend pas de couvercle. Son impact environnemental est donc réduit. Son coût de fabrication est également moindre.To achieve these and other objects, the invention provides a tray for containing food, according to claim 1. Such a tray does not include a lid. Its environmental impact is therefore reduced. Its manufacturing cost is also lower.

Dans une telle barquette, après fermeture par fixation d'un opercule, la portion extérieure déplaçable de trottoir périphérique reste solidaire de l'opercule et constitue un moyen de préhension facilitant la traction de l'opercule pour son ouverture.In such a tray, after closure by attaching a lid, the movable outer portion of peripheral sidewalk remains integral with the lid and is a gripping means facilitating the traction of the lid for its opening.

En outre, les moyens de retenue constituent des moyens mécaniques spécifiques pour refermer l'opercule préalablement partiellement ouvert et maintenir l'opercule dans une position refermée dans laquelle des aliments contenus dans la barquette peuvent être conservés pendant une durée supplémentaire.In addition, the retaining means constitute specific mechanical means for closing the operculum previously partially open and maintain the lid in a closed position in which food contained in the tray can be stored for an additional period.

Ces moyens mécaniques spécifiques permettent d'obtenir une tenue mécanique suffisante de l'opercule pour que la barquette supporte un poids raisonnable sur elle pendant le stockage dans un réfrigérateur.These specific mechanical means make it possible to obtain sufficient mechanical strength of the lid for the tray to withstand a reasonable weight on it during storage in a refrigerator.

Avant remplissage et obturation par un opercule, de telles barquettes sont empilables les unes sur les autres à l'état complètement emboîté.Before filling and sealing with a lid, such trays are stackable on top of each other in the fully engaged state.

L'encliquetage est une méthode efficace pour maintenir fermement l'opercule en position fermée. De plus, les moyens d'encliquetage sont faciles et peu onéreux à réaliser, aisés à mettre en oeuvre, et ne nécessitent la présence d'aucun autre matériau.Snapping is an effective method to firmly hold the seal in the closed position. In addition, the latching means are easy and inexpensive to make, easy to implement, and require the presence of any other material.

On peut avantageusement prévoir que l'écart entre la nervure de paroi et le trottoir périphérique est choisi de façon à autoriser un déplacement vertical suffisant du bord libre au-dessus de la nervure de paroi sous l'action d'une force d'encliquetage, pour garantir le placement de la totalité du bord libre au-dessus de la nervure de paroi, même en présence d'une force d'encliquetage exercée sur une partie seulement de la portion extérieure déplaçable.It can be advantageously provided that the gap between the wall rib and the peripheral sidewalk is chosen so as to allow sufficient vertical movement of the free edge above the wall rib under the action of a latching force, to ensure placement of the entire free edge above the wall ridge, even in the presence of a detent force exerted on only a portion of the movable outer portion.

L'encliquetage ainsi réalisé est optimum et fiable.The snapping thus achieved is optimum and reliable.

Avantageusement, on peut prévoir que la portion extérieure déplaçable de trottoir périphérique et la portion intérieure fixe de trottoir périphérique sont solidaires l'une de l'autre en seulement des points de contact espacés les uns des autres, avantageusement en deux points extrêmes de contact de trottoir périphérique.Advantageously, it can be provided that the movable outer portion of the peripheral sidewalk and the fixed inner portion of the peripheral sidewalk are integral with each other in only contact points spaced from each other, advantageously at two end points of contact with each other. peripheral sidewalk.

Ainsi, la barquette remplit son rôle même si elle est constituée d'une matière qui se casse difficilement. On élargit ainsi la palette des matières utilisables pour réaliser la barquette.Thus, the tray fulfills its role even if it consists of a material that breaks easily. This broadens the range of materials used to make the tray.

De façon avantageuse, on peut prévoir que la portion extérieure déplaçable de trottoir périphérique et la portion intérieure fixe de trottoir périphérique sont conformées pour pouvoir être désolidarisées l'une de l'autre par sectionnement le long d'une ligne de rupture.Advantageously, it can be provided that the movable outer portion of the peripheral sidewalk and the fixed inner portion of the peripheral sidewalk are shaped so as to be disconnected from one another by sectioning along a break line.

Ainsi, la rupture est franche, il n'y a pas de risque de se blesser, et la rupture est facilitée.Thus, the rupture is frank, there is no risk of injury, and the break is facilitated.

On peut avantageusement prévoir que la portion extérieure déplaçable de trottoir périphérique comprend une gorge de trottoir, se développant selon sa longueur.It can advantageously be provided that the movable outer portion of peripheral sidewalk comprises a sidewalk groove, developing along its length.

Par la présence de la gorge de trottoir, la rigidité de la portion extérieure déplaçable de trottoir périphérique est augmentée.By the presence of the sidewalk groove, the rigidity of the movable outer portion of peripheral sidewalk is increased.

De façon avantageuse, on peut prévoir que le trottoir périphérique comprend en outre des oreilles de préhension de la barquette.Advantageously, it can be provided that the peripheral sidewalk further comprises gripping ears of the tray.

La préhension de la barquette est ainsi facilitée.The gripping of the tray is thus facilitated.

On peut avantageusement prévoir que l'opercule est prévu pour rester solidaire d'au moins un tronçon de la portion intérieure fixe de trottoir périphérique, ce tronçon étant avantageusement à l'écart de la portion extérieure déplaçable de trottoir périphérique.It can be advantageously provided that the cover is provided to remain attached to at least one portion of the fixed inner portion of peripheral sidewalk, this section being advantageously away from the outer movable portion of peripheral sidewalk.

On évite ainsi l'arrachement complet de l'opercule, de sorte que son repositionnement reste possible. Après repositionnement, la tenue mécanique de l'opercule est améliorée et la durée de conservation des aliments restant dans la barquette est allongée du fait que la barquette est mieux refermée.This avoids the complete tearing of the lid, so that its repositioning remains possible. After repositioning, the mechanical strength of the lid is improved and the shelf life of the food remaining in the tray is extended because the tray is better closed.

De façon avantageuse, on peut prévoir que la barquette comprend en outre un opercule solidaire de la barquette par fixation sur le trottoir périphérique.Advantageously, it can be provided that the tray further comprises a lid integral with the tray by attachment to the peripheral sidewalk.

Les aliments contenus dans la barquette sont ainsi conservés selon les normes alimentaires.The food contained in the tray is thus preserved according to food standards.

On peut avantageusement prévoir que la barquette présente une forme sensiblement rectangulaire, ou une forme sensiblement circulaire.It can advantageously be provided that the tray has a substantially rectangular shape, or a substantially circular shape.

Avantageusement, on peut prévoir que la barquette est réalisée par thermoformage d'une feuille de matériau thermoformable d'environ 0,4 mm d'épaisseur, ou par moulage par injection.Advantageously, it can be provided that the tray is made by thermoforming a sheet of thermoformable material of about 0.4 mm thick, or by injection molding.

Le thermoformage est une technique de fabrication de conditionnements répandue, simple et peu onéreuse.Thermoforming is a widespread, simple and inexpensive packaging manufacturing technique.

De façon avantageuse, on peut prévoir que la barquette est réalisée en polyester, en polypropylène, en polychlorure de vinyle, en polyéthylène téréphtalate amorphe, ou en acide polylactique.Advantageously, it can be provided that the tray is made of polyester, polypropylene, polyvinyl chloride, amorphous polyethylene terephthalate, or polylactic acid.

Ces matières compatibles avec les aliments rendent la barquette utilisable pour contenir des aliments. De plus, ces matières sont transparentes et permettent au consommateur de vérifier le bon état des aliments qu'il s'apprête à acheter.These food compatible materials make the tray usable for holding food. In addition, these materials are transparent and allow the consumer to check the condition of the food he is about to buy.

D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description suivante de modes de réalisation particuliers, faite en relation avec les figures jointes, parmi lesquelles :

  • la figure 1 est une vue générale en perspective d'une barquette selon un mode de réalisation préféré de l'invention, dépourvue d'opercule ;
  • la figure 2 est une vue en coupe longitudinale de la barquette de la figure 1 avec un opercule, illustrant la position initiale et une position d'ouverture ; et
  • la figure 3 est une vue en coupe longitudinale de la barquette de la figure 1 avec un opercule dans une position rabattue et encliquetée.
Other objects, features and advantages of the present invention will become apparent from the following description of particular embodiments, with reference to the accompanying figures, in which:
  • the figure 1 is a general perspective view of a tray according to a preferred embodiment of the invention, without operculum;
  • the figure 2 is a longitudinal sectional view of the tray of the figure 1 with a cover, illustrating the initial position and an open position; and
  • the figure 3 is a longitudinal sectional view of the tray of the figure 1 with a cover in a folded and snapped position.

Les figures 1 à 3 illustrent une barquette 1 selon un mode de réalisation préféré de l'invention à « retenue par encliquetage ».The Figures 1 to 3 illustrate a tray 1 according to a preferred embodiment of the invention "snap-fit".

Dans un mode de réalisation non illustré, la barquette 1 comprend des oreilles de préhension qui s'étendent à partir du trottoir périphérique. La réalisation de ces oreilles de préhension ne nécessite qu'une simple modification du moule de thermoformage.In a non-illustrated embodiment, the tray 1 comprises gripping ears that extend from the peripheral sidewalk. The realization of these gripping lugs requires only a simple modification of the thermoforming mold.

Dans le mode de réalisation représenté, la barquette 1 est de forme sensiblement rectangulaire à coins arrondis, avec deux petits côtés L1 et L3 et deux grands côtés L2 et L4.In the embodiment shown, the tray 1 is substantially rectangular in shape with rounded corners, with two small sides L1 and L3 and two long sides L2 and L4.

La barquette 1 comprend une cavité 2, limitée par une paroi périphérique latérale 3 et un fond 4, et ouverte selon une ouverture principale 5 opposée au fond 4. Un trottoir périphérique 6 borde l'ouverture principale 5 et est apte à recevoir un opercule 7 (figures 2 et 3) pour obturer l'ouverture principale 5.The tray 1 comprises a cavity 2, limited by a lateral peripheral wall 3 and a bottom 4, and open at a main opening 5 opposite the bottom 4. A peripheral sidewalk 6 borders the main opening 5 and is able to receive a lid 7 ( Figures 2 and 3 ) to close the main opening 5.

Le trottoir périphérique 6 est conformé selon un plan d'operculage P, et il comporte une portion extérieure déplaçable 6b et une portion intérieure fixe 6a.The peripheral sidewalk 6 is shaped according to a sealing plane P, and it comprises a movable outer portion 6b and a fixed inner portion 6a.

Dans une position initiale (figure 2), c'est-à-dire avant ouverture de l'opercule 7, la portion extérieure déplaçable 6b et la portion intérieure fixe 6a sont toutes deux contenues dans le plan d'operculage P.In an initial position ( figure 2 ), that is to say before opening of the cap 7, the movable outer portion 6b and the inner fixed portion 6a are both contained in the sealing plane P.

La portion extérieure déplaçable 6b est conformée pour pouvoir être déplacée à l'écart du premier plan d'operculage P dans une première direction D1 (figure 2) en vue de l'ouverture de la barquette (représentation en pointillés sur la figure 2).The movable outer portion 6b is shaped so that it can be moved away from the first sealing plane P in a first direction D1 ( figure 2 ) for the opening of the tray (dashed representation on the figure 2 ).

La portion extérieure déplaçable 6b de trottoir périphérique 6 présente un bord libre 60 (figure 2) et est conformée pour pouvoir être déplacée en outre à l'écart du premier plan d'operculage P dans une seconde direction D2 (figure 3), opposée à la direction D1, jusqu'à une position rabattue (figure 3) dans laquelle son bord libre 60 entre en contact avec la face externe 30 de la paroi périphérique latérale 3.The movable outer portion 6b of peripheral sidewalk 6 has a free edge 60 ( figure 2 ) and is shaped to be further movable away from the first sealing plane P in a second direction D2 ( figure 3 ), opposite direction D1, to a folded position ( figure 3 ) in which its free edge 60 comes into contact with the external face 30 of the lateral peripheral wall 3.

L'opercule 7 n'est pas représenté sur la figure 1. Ainsi, cette figure illustre la barquette 1 seule, avant toute utilisation.The cover 7 is not represented on the figure 1 . Thus, this figure illustrates the tray 1 alone, before any use.

Sur la figure 2, illustrant la barquette 1 operculée, l'opercule 7 est représenté dans une position fermée préalablement à se trouver dans la position d'ouverture (pointillés). L'opercule 7 présente habituellement une épaisseur comprise entre environ 30 et 70 µm, avantageusement environ 50 µm.On the figure 2 illustrating the sealed tray 1, the cover 7 is shown in a closed position prior to being in the open position (dashed). The lid 7 usually has a thickness between about 30 and 70 microns, preferably about 50 microns.

Le fond 4 comprend une structure particulière qui a un rôle de rigidification de la barquette 1. Cependant cette structure de fond ne participe pas à la résolution du problème technique de l'invention. Elle ne présente pas un caractère essentiel ici et pourrait être omise.The bottom 4 comprises a particular structure that has a role of stiffening the tray 1. However, this bottom structure does not participate solving the technical problem of the invention. It is not essential here and could be omitted.

L'opercule 7 ferme dans la position initiale de la figure 2 (non en pointillés) l'ouverture principale 5 de la barquette 1 en étant scellé sur toute la longueur du trottoir périphérique 6 selon une zone de scellage. La zone de scellage comprend une première zone de scellage assurant le scellage de l'opercule 7 sur la portion intérieure fixe 6a, et une seconde zone de scellage assurant le scellage de l'opercule 7 sur la portion extérieure déplaçable 6b de trottoir périphérique 6, pour assurer la conservation des aliments contenus dans la barquette 1 (non représentés) dans les conditions de conservation requises par les normes alimentaires.The cover 7 closes in the initial position of the figure 2 (not dashed) the main opening 5 of the tray 1 being sealed along the entire length of the peripheral sidewalk 6 according to a sealing area. The sealing zone comprises a first sealing zone ensuring the sealing of the cap 7 on the fixed inner portion 6a, and a second sealing zone ensuring the sealing of the cap 7 on the movable outer portion 6b of peripheral sidewalk 6, to ensure the preservation of the food contained in the tray 1 (not shown) under the conditions of conservation required by the food standards.

La première zone de scellage comprend une zone de scellage renforcé sur toute la longueur du petit côté L1. Le petit côté L1 est opposé au petit côté L3 qui porte la portion extérieure déplaçable 6b.The first sealing zone comprises a reinforced sealing zone along the entire length of the short side L1. The small side L1 is opposite the small side L3 which carries the movable outer portion 6b.

Sur la figure 1, une gorge de trottoir 10 se développe selon la longueur de la portion extérieure déplaçable 6b du trottoir périphérique 6. Cette gorge de trottoir 10 a pour effet de rigidifier la portion extérieure déplaçable 6b du trottoir périphérique 6.On the figure 1 , a sidewalk groove 10 develops along the length of the movable outer portion 6b of the peripheral sidewalk 6. This sidewalk groove 10 has the effect of stiffening the movable outer portion 6b of the peripheral sidewalk 6.

Lorsqu'elle est en position rabattue (figure 3), la portion extérieure déplaçable 6b de trottoir périphérique 6 peut être fixée de façon réversible à la paroi périphérique latérale 3 par des moyens de retenue.When in the folded position ( figure 3 ), the movable outer portion 6b peripheral curb 6 can be reversibly attached to the side peripheral wall 3 by retaining means.

On va décrire les moyens de retenue, illustré sur les figures 1 à 3.We will describe the means of restraint, illustrated on Figures 1 to 3 .

Une nervure de paroi 11 est prévue sur la face externe 30 de la paroi périphérique latérale 3, et constitue des moyens d'encliquetage de paroi.A wall rib 11 is provided on the outer face 30 of the lateral peripheral wall 3, and constitutes wall latching means.

Le bord libre 60 est conformé pour coopérer avec la nervure de paroi 11 pour maintenir la portion extérieure déplaçable 6b de trottoir périphérique 6 dans la position rabattue (figure 3). Ainsi, le bord libre 60 constitue des moyens d'encliquetage de trottoir.The free edge 60 is shaped to cooperate with the wall rib 11 to maintain the movable outer portion 6b of peripheral sidewalk 6 in the folded position ( figure 3 ). Thus, the free edge 60 constitutes curb latching means.

La portion extérieure déplaçable 6b et la portion intérieure fixe 6a sont conformées pour pouvoir être désolidarisées l'une de l'autre par sectionnement d'une ligne de rupture R (figure 1). On peut toutefois prévoir que la portion extérieure déplaçable 6b et la portion intérieure fixe 6a ne sont initialement solidaires l'une de l'autre que par deux points extrêmes de contact dans la position initiale, avec éventuellement un point intermédiaire de contact sectionnable.The movable outer portion 6b and the fixed inner portion 6a are shaped so that they can be separated from one another by severing a rupture line R ( figure 1 ). However, it can be provided that the movable outer portion 6b and the fixed inner portion 6a are initially integral with each other only by two end points of contact in the initial position, with possibly an intermediate point of sectional contact.

On va maintenant décrire l'utilisation de la barquette 1 par un consommateur.We will now describe the use of the tray 1 by a consumer.

La barquette 1 a préalablement été remplie d'aliments à conserver, et a été close par un opercule selon les normes alimentaires.The tray 1 was previously filled with food to keep, and was closed by a seal according to food standards.

Un consommateur souhaitant consommer les aliments contenus dans la barquette 1 désolidarise la portion extérieure déplaçable 6b de la portion intérieure fixe 6a, la portion extérieure déplaçable 6b étant maintenue solidaire de l'opercule 7. L'utilisateur ouvre ensuite partiellement la barquette 1 en exerçant une force sur la portion extérieure déplaçable 6b selon la direction D1 (figure 2).A consumer wishing to consume the food contained in the tray 1 disengages the movable outer portion 6b from the fixed inner portion 6a, the movable outer portion 6b being secured to the lid 7. The user then partially opens the tray 1 by exerting a force on the movable outer portion 6b in the direction D1 ( figure 2 ).

L'opercule 7 reste toujours solidaire de la barquette 1 par la zone de scellage renforcé selon au moins le côté L1. Le consommateur prélève la quantité d'aliments désirée.The cover 7 remains permanently attached to the tray 1 by the reinforced sealing zone according to at least the L1 side. The consumer takes the quantity of food desired.

Ensuite, l'utilisateur rabat l'opercule 7 sur le trottoir périphérique 6 et exerce une sollicitation de rotation sur la portion extérieure déplaçable 6b selon la direction D2 (figure 3) pour l'amener en position rabattue. Puis l'utilisateur exerce une force d'encliquetage F (figure 3) de façon à engager le bord libre 60 de la portion extérieure déplaçable 6b au-dessus de la nervure de paroi 11 pour produire l'encliquetage. Pour assurer de manière certaine l'engagement de la totalité du bord libre 60 au-dessus de la nervure de paroi 11 malgré la souplesse inévitable de la portion extérieure déplaçable 6b, l'utilisateur peut exercer la force d'encliquetage F selon une intensité suffisante pour déplacer avec excès le bord libre 60 au-dessus de la nervure de paroi 11 en direction du trottoir périphérique 6, de sorte que, après relâchement de la force d'encliquetage F, le bord libre 60 s'engage selon toute sa longueur sur la nervure de paroi 11.Then, the user folds the lid 7 on the peripheral sidewalk 6 and exerts a rotation bias on the movable outer portion 6b in the direction D2 ( figure 3 ) to bring it to the folded position. Then the user exerts a latching force F ( figure 3 ) so as to engage the free edge 60 of the movable outer portion 6b above the wall rib 11 to produce the latching. To reliably ensure the engagement of the entire free edge 60 above the wall rib 11 despite the inevitable flexibility of the movable outer portion 6b, the user can exert the latching force F at a sufficient intensity. to excessively move the free edge 60 above the wall rib 11 towards the peripheral sidewalk 6, so that, after release of the detent force F, the free edge 60 engages along its entire length on the wall rib 11.

L'opercule 7 est alors fermement maintenu en position refermée par cet encliquetage.The cover 7 is then firmly held in the closed position by this latching.

Le consommateur peut placer au réfrigérateur la barquette 1 ainsi refermée pour conserver le reste des aliments. L'encliquetage est prévu pour tenir mécaniquement l'opercule 7 suffisamment pour pouvoir empiler d'autres conditionnements sur l'opercule 7.The consumer can place in the refrigerator the tray 1 and closed to store the rest of the food. The latching is provided to mechanically hold the lid 7 sufficiently to be able to stack other packaging on the lid 7.

La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof within the scope of the claims below.

Claims (11)

  1. Tray (1) for containing food, comprising:
    - at least one cavity (2) bounded by a lateral peripheral wall (3) and a base (4), and open at a main opening (5) opposite the base (4),
    - a peripheral flange (6), adjoining the main opening (5), formed in a sealing plane (P), and comprising a displaceable outer portion (6b) of the peripheral flange (6) and a fixed inner portion (6a) of the peripheral flange (6),
    - the displaceable outer portion (6b) of the peripheral flange (6) and the fixed inner portion (6a) of the peripheral flange (6) being formed so as to receive and retain, by attachment, a membrane seal (7) so as to close off the main opening (5),
    - the displaceable outer portion (6b) of the peripheral flange (6) being formed so as to be able to be moved away from the sealing plane (P) in a first direction (D1) for the purpose of opening the tray (1),
    in which:
    - the displaceable outer portion (6b) of the peripheral flange (6) is moreover formed so as to be able to be moved away from the sealing plane (P) in a second direction (D2) counter to the first direction (D1) as far as a folded-down position in which it touches the outer face (30) of the lateral peripheral wall (3),
    - retaining means make it possible to selectively secure the displaceable outer portion (6b) of the peripheral flange (6) to the outer face (30) of the lateral peripheral wall (3),
    - the retaining means comprise flange snap-fitting means and wall snap-fitting means,
    - the flange snap-fitting means consist of the free edge (60) of the displaceable outer portion (6b) of the peripheral flange (6),
    - the outer face (30) of the lateral peripheral wall (3) comprises the wall snap-fitting means, which are formed so as to engage with the flange snap-fitting means in order to hold the displaceable outer portion (6b) of the peripheral flange (6) in the folded-down position,
    - the wall snap-fitting means comprise a wall rib (11) projecting on the outer face (30) of the lateral peripheral wall (3) and located at a distance from the peripheral flange (6),
    - the wall snap-fitting means are able to retain the flange snap-fitting means in order to snap-fit the displaceable outer portion (6b) of the peripheral flange (6),
    characterized in that:
    - the wall rib (11) is oriented with its length parallel to the sealing plane (P), and
    - in the folded-down position of the displaceable outer portion (6b) of the peripheral flange (6) its free edge (60) engages on the wall rib (11) along its length.
  2. Tray (1) according to claim 1, characterized in that the distance between the wall rib (11) and the peripheral flange (6) is chosen so as to allow sufficient vertical displacement of the free edge (60) above the wall rib (11) under the action of a snap-fitting force (F), so as to ensure that all of the free edge (60) is placed above the wall rib (11) in the presence of a snap-fitting force (F) exerted on just one part of the displaceable outer portion (6b).
  3. Tray (1) according to either of claims 1 and 2, characterized in that the displaceable outer portion (6b) of the peripheral flange (6) and the fixed inner portion (6a) of the peripheral flange (6) are secured to one another only at contact points which are spaced apart from one another, advantageously at two end contact points of the peripheral flange (6).
  4. Tray (1) according to either of claims 1 and 2, characterized in that the displaceable outer portion (6b) of the peripheral flange (6) and the fixed inner portion (6a) of the peripheral flange (6) are formed such that they can be separated from one another by splitting along a break line (R).
  5. Tray (1) according to any one of claims 1 to 4, characterized in that the displaceable outer portion (6b) of the peripheral flange (6) comprises a lengthwise flange trough (10).
  6. Tray (1) according to any one of claims 1 to 5, characterized in that the peripheral flange (6) further comprises lugs for gripping the tray (1).
  7. Tray (1) according to any one of claims 1 to 6, characterized in that the membrane seal (7) is designed to remain secured to at least one section of the fixed inner portion (6a) of the peripheral flange (6), this section being advantageously spaced apart from the displaceable outer portion (6b) of the peripheral flange (6).
  8. Tray (1) according to any one of claims 1 to 7, characterized in that it further comprises a membrane seal (7) secured to the tray (1) by attachment to the peripheral flange (6).
  9. Tray (1) according to any one of claims 1 to 8, characterized in that it is essentially rectangular or essentially circular.
  10. Tray (1) according to any one of claims 1 to 9, characterized in that it is made by thermoforming a sheet of thermoformable material having a thickness of approximately 0.4 mm, or by injection molding.
  11. Tray (1) according to any one of claims 1 to 10, characterized in that it is made of polyester, polypropylene, polyvinyl chloride, amorphous polyethylene terephthalate, or polylactic acid.
EP14158034.0A 2013-03-06 2014-03-06 Tray with resealable lid Active EP2774873B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1352032A FR3002922B1 (en) 2013-03-06 2013-03-06 RETRACTABLE TRUNK TRAY

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Publication Number Publication Date
EP2774873A1 EP2774873A1 (en) 2014-09-10
EP2774873B1 true EP2774873B1 (en) 2018-06-20

Family

ID=48140096

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Application Number Title Priority Date Filing Date
EP14158034.0A Active EP2774873B1 (en) 2013-03-06 2014-03-06 Tray with resealable lid

Country Status (2)

Country Link
EP (1) EP2774873B1 (en)
FR (1) FR3002922B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016057046A1 (en) 2014-10-10 2016-04-14 Bemis Company, Inc. Snap close peel reseal package
GB2539196B (en) * 2015-06-08 2020-04-29 Par Pak Europe Ltd Packaging for consumer products
DE102018212836A1 (en) 2018-08-01 2020-02-06 Multivac Sepp Haggenmüller Se & Co. Kg Resealable packaging, thermoforming packaging machine and process

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Publication number Priority date Publication date Assignee Title
US3352479A (en) * 1965-05-12 1967-11-14 Monsanto Co Package opener for sealed packages
US3371848A (en) * 1966-10-24 1968-03-05 Anderson Bros Mfg Co Reclosable package
US3398876A (en) * 1967-02-06 1968-08-27 Anderson Bros Mfg Co Reclosable package
US3398877A (en) * 1967-04-10 1968-08-27 Anderson Bros Mfg Co Reclosable package
US3495759A (en) * 1968-04-24 1970-02-17 Anderson Bros Mfg Co Reclosable package
US4962849A (en) * 1989-10-06 1990-10-16 General Mills, Inc. Food container with lid closure having a stand feature
IT1249421B (en) * 1991-05-13 1995-02-23 Autopac Srl TRAY IN RELATIVELY SUCCESSFUL MATERIAL SUCH AS CARDBOARD OR THIN PLASTIC MATERIAL, IN PARTICULAR FOR PACKAGING FOOD PRODUCTS.
FR2972425B1 (en) * 2011-03-07 2014-06-20 Cgl Pack Service RETRACTABLE TRUNK TRAY

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Publication number Publication date
EP2774873A1 (en) 2014-09-10
FR3002922A1 (en) 2014-09-12
FR3002922B1 (en) 2015-10-30

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