EP2639176A1 - Gusset bag - Google Patents

Gusset bag Download PDF

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Publication number
EP2639176A1
EP2639176A1 EP13159583.7A EP13159583A EP2639176A1 EP 2639176 A1 EP2639176 A1 EP 2639176A1 EP 13159583 A EP13159583 A EP 13159583A EP 2639176 A1 EP2639176 A1 EP 2639176A1
Authority
EP
European Patent Office
Prior art keywords
bag
edge
flap
edges
fold
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Withdrawn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
EP13159583.7A
Other languages
German (de)
French (fr)
Inventor
Benoît Martineau
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.)
Valembal SA
Original Assignee
Valembal SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valembal SA filed Critical Valembal SA
Publication of EP2639176A1 publication Critical patent/EP2639176A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/10—Handles formed of similar material to that used for the bag
    • B65D33/105—U-shaped
    • 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
    • B65D81/38—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 with thermal insulation
    • B65D81/3888—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3897—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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed of different materials, e.g. laminated or foam filling between walls

Definitions

  • the present invention relates to a bag with side gussets and bottom gusset, and more particularly to an isothermal bag.
  • the simplest bags are flat bags consisting simply of two flap flaps, intended to form a front face and a rear face of the bag, and assembled on three of their edges so as to define an interior space having an opening at the level of a fourth edge and allowing the introduction and extraction of transported products.
  • the assembly of the shutters can be done by gluing, welding, fusion, sewing, or any other known means depending on the material used for the realization of the bag.
  • the side and bottom-bottom bellows bags are known, these bags having a third flap forming said flat bottom, situated opposite the opening and also assembled with the first and second shutters.
  • bags known as three bellows having two side gussets and a bottom bellows It is of course also possible to make bags known as three bellows having two side gussets and a bottom bellows.
  • such bags are advantageously made from a continuous film of the material constituting the bag (roll of paper, plastic film, etc.) which is subjected to several operations of delimiting the flap flaps, and of bottom, parts of bellows, etc.
  • the film is then subjected to successive folding operations, cutting, and assembly (by welding, gluing, sewing, etc ).
  • the bag can in particular be made essentially flat without folding and shaping the bellows.
  • each flank flap has at least one pre-fold.
  • the pre-fold is made by welding on the side flap.
  • Such an embodiment will be used in particular for bags made from multi-material shutters comprising a plurality of layers weldable together. It may in particular be insulated materials conventionally having three rolled layers, for example, an outer layer PET-PE or low density PE, optionally metallized, a central layer of polyethylene foam, and an inner layer of low density PE type.
  • the pre-fold will be made in a manner adapted to the material used for the bag.
  • paper bag kraft type
  • it may be a pre-fold made by pinching.
  • the side flap has at least one pre-fold at each side edge.
  • the pre-fold is rectilinear.
  • the pre-fold extends to one end of the upper edge of the flap flap, said end forming a wedge with the corresponding lateral edge. This allows in particular to be able to close the upper edges of flap flaps, and therefore the bag.
  • the side flap has a bevelled portion between the bottom edge and the corresponding lateral edge. Such an edge will facilitate the formation of the bottom of the bag and more particularly the bottom bellows.
  • the pre-fold extends from one end of the bottom edge with the bevelled portion.
  • the opening is provided with a hermetic zip type closure.
  • a hermetic zip type closure Any type of closure is possible, in particular by strips with loops and hooks or snaps.
  • the bag may also be advantageously equipped with handles, attached to flap flaps on either side of the opening.
  • the bag is an isothermal bag.
  • a bag 1 according to the invention as shown flat on the figure 1 comprises a first flank flap 2, intended to constitute a front panel of the bag and a second flap flap 3 intended to constitute a rear facade of the bag.
  • Each flap flap 2, 3 has a first upper edge 2a, 3a, the upper edges 2a and 3a together defining an opening of the bag 1.
  • the opening is equipped with a closure 4 zippable and hermetic type cooperating with the upper edges 2a, 3a.
  • a closure 4 zippable and hermetic type cooperating with the upper edges 2a, 3a.
  • it will be a zip zipper closure.
  • Each flap flap 2, 3 also has a bottom edge 2b, 3b located opposite the corresponding upper edge 2a, 3a.
  • the bottom edges 2b, 3b are connected by a bottom bellows 5.
  • the bottom bellows 5 may be made from extensions 21, 31 of the flap flaps beyond their bottom edges 2b, 3b and connected to the level of the bottom flanges. a junction line 5a median of the bellows.
  • the side flaps 2, 3 and the bellows 5 can be made in the same band of material and shaped by folding defining the bottom edges 2b, 3b and the junction line 5a.
  • Each flap flap 2, 3 finally has a first lateral edge 2c, 3c and a second lateral edge, 2d, 3d, the first lateral edges 2c, 3c, on the one hand, and the second lateral edges 2d, 3d, of on the other hand, being interconnected directly or through side gussets.
  • the other links it can be performed by welding, gluing, sewing, etc ... or any other means depending on the material used for the realization of the bag.
  • the lower edge 2b, 3b is bonded to the lateral edge 2c, 2d; 3c, 3d through a bevelled edge 2e, 2f, 3e, 3f.
  • each flap flap 2, 3 has a pre-fold 7c, 7d, 8c, 8d near each side edge 2c, 2d, 3c, 3d.
  • the pre-fold extends rectilinearly from the bottom edge 2b, 3b to the upper edge 2a, 3a.
  • the pre-bend 7c, 7d, 8c, 8d extends to one end of the upper edge of the flap flap, said end forming a wedge with the corresponding lateral edge. Such an arrangement allows to allow the closure of the bag.
  • the pre-folds and the side edges will form during the deployment of the bag side gussets, the pre-folds constituting the edges of the side gussets while the lateral edges of the side flaps form the median line of the lateral gussets ( figure 2 ).

Abstract

The bag (1) has a side flap (2) and another side flap, each comprising upper edges (2a, 3a) defining an opening. The former side flap has a bottom edge (2b) located opposite to the opening and connected to corresponding bottom edge of the latter side flap through bottom bellows. The former side flap has side edges (2c, 2d) attached respectively to corresponding side edges of the latter side flap. One of the side flaps has rectilinear pre-folds (7c, 7d) close to and partially separated from one of the side edges, where the pre-fold is extended from the bottom edges to the upper edges.

Description

La présente invention se rapporte à un sac à soufflets latéraux et soufflet de fond, et plus particulièrement à un sac isotherme.The present invention relates to a bag with side gussets and bottom gusset, and more particularly to an isothermal bag.

Il existe de nombreuses variétés de sacs pour le transport des achats ou autres marchandises.There are many varieties of bags for transporting purchases or other goods.

Les sacs les plus simples sont les sacs plats consistant simplement en deux volets de flanc, destinés à former une face avant et une face arrière du sac, et assemblés sur trois de leur bords de manière à définir un espace intérieur présentant une ouverture au niveau d'un quatrième bord et permettant l'introduction et l'extraction des produits transportés.The simplest bags are flat bags consisting simply of two flap flaps, intended to form a front face and a rear face of the bag, and assembled on three of their edges so as to define an interior space having an opening at the level of a fourth edge and allowing the introduction and extraction of transported products.

L'assemblage des volets peut se faire par collage, soudure, fusion, couture, ou tout autre moyen connu en fonction du matériau utilisé pour la réalisation du sac.The assembly of the shutters can be done by gluing, welding, fusion, sewing, or any other known means depending on the material used for the realization of the bag.

Afin d'améliorer la tenue de ces sacs et d'augmenter l'espace intérieur disponible, on connaît les sacs à soufflet latéraux et à fond plat, ces sacs possédant un troisième volet formant ledit fond plat, situé à l'opposé de l'ouverture et également assemblé avec les premier et deuxième volets.In order to improve the strength of these bags and to increase the interior space available, the side and bottom-bottom bellows bags are known, these bags having a third flap forming said flat bottom, situated opposite the opening and also assembled with the first and second shutters.

En raison de l'existence de ce fond, les autres bords des volets de flanc ne sont plus directement assemblés entre eux, mais sont reliés par l'intermédiaire de soufflets latéraux formés au niveau des bords latéraux des volets de flanc et assurant leur écartement depuis l'ouverture jusqu'au fond.Due to the existence of this bottom, the other edges of the flap flaps are not directly assembled together, but are connected by means of lateral bellows formed at the side edges of the side flaps and ensuring their spacing since opening to the bottom.

Alternativement, il est possible de conserver les volets de flancs assemblés directement entre eux latéralement sur une majeure partie des bords latéraux en remplaçant le fond plat par un soufflet de fond. Il n'y a alors plus de soufflets latéraux et on obtient un sac sensiblement pyramidal.Alternatively, it is possible to keep the sidewall flaps assembled directly between them laterally on a major part of the lateral edges by replacing the flat bottom by a bottom bellows. There is no longer any lateral gussets and we obtain a substantially pyramidal bag.

Il est bien évidemment également possible de réaliser des sacs dits trois soufflets présentant deux soufflets latéraux et un soufflet de fond.It is of course also possible to make bags known as three bellows having two side gussets and a bottom bellows.

Différentes solutions techniques peuvent être utilisées pour réaliser en continu ce type de sac.Various technical solutions can be used to carry out this type of bag continuously.

De manière générale, de tels sacs sont avantageusement réalisés à partir d'un film continu du matériau constitutif du sac (rouleau de papier, film plastique, etc ...) qui est soumis à plusieurs opérations de délimitation des volets de flanc, et de fond, des parties de soufflets, etc.In general, such bags are advantageously made from a continuous film of the material constituting the bag (roll of paper, plastic film, etc.) which is subjected to several operations of delimiting the flap flaps, and of bottom, parts of bellows, etc.

Le film est ensuite soumis à des opérations de pliage successifs, de coupe, et d'assemblage (par soudure, collage, couture, etc...).The film is then subjected to successive folding operations, cutting, and assembly (by welding, gluing, sewing, etc ...).

Bien évidemment, plus le sac présente de soufflets plus son assemblage est complexe, tant au niveau du temps de fabrication qu'au niveau des machines conçues pour sa réalisation. Dans certains cas, il peut même être impossible de réaliser certaines étapes par machines et en continu. Ces étapes d'assemblage doivent alors être réalisées manuellement.Of course, the more the bag has bellows more assembly is complex, both in terms of manufacturing time as the machines designed for its realization. In some cases, it may even be impossible to perform certain steps per machine and continuously. These assembly steps must then be performed manually.

Pour ce faire, il existe donc un besoin permanent pour de nouvelles structures de sac, dont l'assemblage peut être simplifié et conservant les avantages d'un espace intérieur important et d'une tenue améliorée.To do this, there is therefore a permanent need for new bag structures, the assembly can be simplified and retaining the benefits of a large interior space and improved hold.

Pour ce faire, la présente invention se rapporte à un sac comprenant au moins deux volets de flanc présentant chacun :

  • un premier bord, dit supérieur, définissant avec le bord supérieur correspondant du deuxième volet, une ouverture,
  • un deuxième bord, dit de fond, situé à l'opposé de l'ouverture et relié au bord correspondant du deuxième volet par l'intermédiaire d'au moins un soufflet de fond,
  • un premier bord latéral et un deuxième bord latéral rattachés respectivement au premier bord latéral et deuxième bord latéral correspondants du deuxième volet,
caractérisé en ce qu'au moins un volet de flanc présente, à proximité d'au moins l'un des premier bord et deuxième bord latéraux mais au moins partiellement écarté de ce dernier, au moins une pré-pliure s'étendant depuis le bord de fond jusqu'au bord supérieur.To do this, the present invention relates to a bag comprising at least two flap flaps each presenting:
  • a first edge, said upper, defining with the corresponding upper edge of the second flap, an opening,
  • a second edge, said bottom, located opposite the opening and connected to the corresponding edge of the second flap via at least one bottom bellows,
  • a first lateral edge and a second lateral edge respectively attached to the corresponding first lateral edge and second lateral edge of the second flap,
characterized in that at least one flank flap has, near at least one of the first and second lateral edges but at least partially spaced from the latter, at least one pre-fold extending from the edge bottom to the top edge.

Ainsi, en prévoyant une pré-pliure réalisée directement sur les volets de flanc, la constitution des soufflets latéraux est grandement facilitée. Le sac peut notamment être réalisé essentiellement à plat sans étape de pliure et de mise en forme des soufflets.Thus, by providing a pre-fold made directly on the side flaps, the constitution of the side gussets is greatly facilitated. The bag can in particular be made essentially flat without folding and shaping the bellows.

Comme expliqué précédemment, la complexité des machines de fabrication s'en trouve réduite. Le temps de fabrication est également raccourci.As explained above, the complexity of the manufacturing machines is reduced. The manufacturing time is also shortened.

Avantageusement, chaque volet de flanc présente au moins une pré-pliure.Advantageously, each flank flap has at least one pre-fold.

Selon un mode de réalisation préférentiel, la pré-pliure est réalisée par soudure sur le volet de flanc. Un tel mode de réalisation sera notamment utilisé pour des sacs réalisés à partir de volets multi matériaux comprenant une pluralité de couches soudables entre elles. Il pourra notamment s'agir de matériaux isothermes possédant classiquement trois couches laminées, à savoir par exemple, une couche externe PET-PE ou PE basse densité, éventuellement métallisée, une couche centrale de mousse polyéthylène, et une couche intérieure de type PE basse densité.According to a preferred embodiment, the pre-fold is made by welding on the side flap. Such an embodiment will be used in particular for bags made from multi-material shutters comprising a plurality of layers weldable together. It may in particular be insulated materials conventionally having three rolled layers, for example, an outer layer PET-PE or low density PE, optionally metallized, a central layer of polyethylene foam, and an inner layer of low density PE type.

La pré-pliure sera réalisée de manière adaptée au matériau utilisé pour le sac. Dans le cas de sac papier (type kraft), il pourra s'agir d'une pré-pliure réalisée par pincement.The pre-fold will be made in a manner adapted to the material used for the bag. In the case of paper bag (kraft type), it may be a pre-fold made by pinching.

De manière préférentielle, le volet de flanc présente au moins une pré-pliure au niveau de chaque bord latéral.Preferably, the side flap has at least one pre-fold at each side edge.

Avantageusement, la pré-pliure est rectiligne.Advantageously, the pre-fold is rectilinear.

Préférentiellement, la pré-pliure s'étend jusqu'à une extrémité du bord supérieur du volet de flanc, ladite extrémité formant un coin avec le bord latéral correspondant. Cela permet notamment de pouvoir fermer les bords supérieurs des volets de flanc, et donc le sac.Preferably, the pre-fold extends to one end of the upper edge of the flap flap, said end forming a wedge with the corresponding lateral edge. This allows in particular to be able to close the upper edges of flap flaps, and therefore the bag.

Avantageusement, le volet de flanc présente une portion biseautée entre le bord de fond et le bord latéral correspondant. Un tel bord facilitera la formation du fond du sac et plus particulièrement du soufflet de fond.Advantageously, the side flap has a bevelled portion between the bottom edge and the corresponding lateral edge. Such an edge will facilitate the formation of the bottom of the bag and more particularly the bottom bellows.

Avantageusement encore, la pré-pliure s'étend depuis une extrémité du bord de fond avec la portion biseautée.Advantageously, the pre-fold extends from one end of the bottom edge with the bevelled portion.

De manière avantageusement complémentaire, l'ouverture est munie d'une fermeture hermétique de type zip. Bien évidemment, tout type de fermeture est envisageable, notamment par bandes à bouclettes et à crochets ou encore boutons pression.Advantageously complementary, the opening is provided with a hermetic zip type closure. Of course, any type of closure is possible, in particular by strips with loops and hooks or snaps.

Le sac pourra en outre être avantageusement équipé de poignées, rattachées aux volets de flanc de part et d'autre de l'ouverture.The bag may also be advantageously equipped with handles, attached to flap flaps on either side of the opening.

De manière préférentielle, le sac est un sac isotherme.Preferably, the bag is an isothermal bag.

La présente invention sera mieux comprise à la lumière de la description détaillée qui suit en regard du dessin annexé dans lequel :

  • la figure 1 est une vue à plat d'un sac selon l'invention,
  • la figure 2 est une vue d'une partie inférieure du sac de la figure 1 déplié,
  • la figure 3 est une vue de dessous du sac de la figure 1 en position dépliée,
The present invention will be better understood in the light of the following detailed description with reference to the appended drawing in which:
  • the figure 1 is a flat view of a bag according to the invention,
  • the figure 2 is a view of a lower part of the bag of the figure 1 unfolded
  • the figure 3 is a bottom view of the bag of the figure 1 in unfolded position,

Un sac 1 selon l'invention tel que représenté à plat sur la figure 1 comprend un premier volet de flanc 2, destiné à constituer une façade avant du sac et un deuxième volet de flanc 3 destiné à constituer une façade arrière du sac.A bag 1 according to the invention as shown flat on the figure 1 comprises a first flank flap 2, intended to constitute a front panel of the bag and a second flap flap 3 intended to constitute a rear facade of the bag.

Chaque volet de flanc 2, 3 présente un premier bord 2a, 3a supérieur, les bords supérieurs 2a et 3a définissant ensemble une ouverture du sac 1.Each flap flap 2, 3 has a first upper edge 2a, 3a, the upper edges 2a and 3a together defining an opening of the bag 1.

L'ouverture est équipée d'une fermeture 4 de type zippable et hermétique coopérant avec les bords supérieurs 2a, 3a. Préférentiellement, il s'agira d'une fermeture zippable à curseur.The opening is equipped with a closure 4 zippable and hermetic type cooperating with the upper edges 2a, 3a. Preferably, it will be a zip zipper closure.

Chaque volet de flanc 2, 3 présente également un bord 2b, 3b de fond situé à l'opposé du bord supérieur 2a, 3a correspondant.Each flap flap 2, 3 also has a bottom edge 2b, 3b located opposite the corresponding upper edge 2a, 3a.

Les bords de fond 2b, 3b sont reliés par un soufflet de fond 5. Le soufflet de fond 5 pourra être réalisé à partir de prolongements 21, 31 des volets de flanc au delà de leur bords de fond 2b, 3b et reliés au niveau d'une ligne de jonction 5a médiane du soufflet.The bottom edges 2b, 3b are connected by a bottom bellows 5. The bottom bellows 5 may be made from extensions 21, 31 of the flap flaps beyond their bottom edges 2b, 3b and connected to the level of the bottom flanges. a junction line 5a median of the bellows.

Selon une variante de réalisation, les volets de flanc 2, 3 et le soufflet 5 peuvent être réalisés dans une même bande de matériau et mis en forme par pliure définissant les bords de fond 2b, 3b et la ligne de jonction 5a.According to an alternative embodiment, the side flaps 2, 3 and the bellows 5 can be made in the same band of material and shaped by folding defining the bottom edges 2b, 3b and the junction line 5a.

Chaque volet de flanc 2, 3 présente enfin un premier bord latéral 2c, 3c et un deuxième bord latéral, 2d, 3d, les premiers bords latéraux 2c, 3c, d'une part, et les deuxième bords latéraux 2d, 3d, d'autre part, étant liés entre eux, directement ou par l'intermédiaire de soufflets latéraux.Each flap flap 2, 3 finally has a first lateral edge 2c, 3c and a second lateral edge, 2d, 3d, the first lateral edges 2c, 3c, on the one hand, and the second lateral edges 2d, 3d, of on the other hand, being interconnected directly or through side gussets.

Comme pour les autres liaisons, elle pourra être effectuée par soudure, collage, couture, etc ... ou tout autre moyen en fonction du matériau utilisé pour la réalisation du sac.As for the other links, it can be performed by welding, gluing, sewing, etc ... or any other means depending on the material used for the realization of the bag.

Pour chaque flanc 2, 3, le bord inférieur 2b, 3b est lié au bord latéral 2c, 2d ; 3c, 3d par l'intermédiaire d'un bord biseauté 2e, 2f, 3e, 3f.For each flank 2, 3, the lower edge 2b, 3b is bonded to the lateral edge 2c, 2d; 3c, 3d through a bevelled edge 2e, 2f, 3e, 3f.

Conformément à l'invention, chaque volet de flanc 2, 3 présente une pré-pliure 7c, 7d, 8c, 8d à proximité de chaque bord latéral 2c, 2d, 3c, 3d.According to the invention, each flap flap 2, 3 has a pre-fold 7c, 7d, 8c, 8d near each side edge 2c, 2d, 3c, 3d.

La pré-pliure s'étend de manière rectiligne depuis le bord de fond 2b, 3b jusqu'au bord supérieur 2a, 3a.The pre-fold extends rectilinearly from the bottom edge 2b, 3b to the upper edge 2a, 3a.

Plus précisément, la pré-pliure 7c, 7d, 8c, 8d s'étend jusqu'à une extrémité du bord supérieur du volet de flanc, ladite extrémité formant un coin avec le bord latéral correspondant. Une telle disposition permet de permettre la fermeture du sac.More specifically, the pre-bend 7c, 7d, 8c, 8d extends to one end of the upper edge of the flap flap, said end forming a wedge with the corresponding lateral edge. Such an arrangement allows to allow the closure of the bag.

Ainsi, à partir d'une réalisation à plat du sac, les pré-pliures et les bords latéraux viendront former lors du déploiement du sac des soufflets latéraux, les pré-pliures constituant les bords des soufflets latéraux tandis que les bords latéraux des volets de flanc viennent former la ligne médiane des soufflets latéraux (figure 2).Thus, from a flat embodiment of the bag, the pre-folds and the side edges will form during the deployment of the bag side gussets, the pre-folds constituting the edges of the side gussets while the lateral edges of the side flaps form the median line of the lateral gussets ( figure 2 ).

Bien que l'invention ait été décrite avec un exemple particulier de réalisation, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits, ainsi que leurs combinaisons, si celles-ci entrent dans le cadre de l'invention.Although the invention has been described with a particular embodiment, it is obvious that it is in no way limited thereto and that it comprises all the technical equivalents of the means described, as well as their combinations, if these are within the scope of the invention.

Claims (9)

Sac (1) comprenant au moins deux volets de flanc (2, 3) présentant chacun : - un premier bord (2a, 3a), dit supérieur, définissant avec le bord supérieur (3a, 2a) correspondant du deuxième volet, une ouverture, - un deuxième bord (2b, 3b), dit de fond, situé à l'opposé de l'ouverture et relié au bord (3b, 2b) correspondant du deuxième volet par l'intermédiaire d'au moins un soufflet de fond, - un premier bord latéral (2c, 3c) et un deuxième bord (2d, 3d) latéral rattachés respectivement au premier bord (3c, 2c) latéral et deuxième bord (3d, 2d) latéral correspondants du deuxième volet, au moins un volet de flanc présentant, à proximité d'au moins l'un des premier bord et deuxième bord latéraux mais au moins partiellement écarté de ce dernier, au moins une pré-pliure (7c, 7d) s'étendant depuis le bord de fond jusqu'au bord supérieur, caractérisé en ce que la pré-pliure (7c, 7d) s'étend jusqu'à une extrémité du bord (2a, 3a) supérieur du volet de flanc (2, 3), ladite extrémité formant un coin avec le bord latéral (2c, 3c, 2d, 3d) correspondant.Bag (1) comprising at least two side flaps (2, 3) each having: a first edge (2a, 3a), said upper, defining with the corresponding upper edge (3a, 2a) of the second flap, an opening, - A second edge (2b, 3b), said bottom, located opposite the opening and connected to the edge (3b, 2b) corresponding to the second flap via at least one bottom bellows, a first lateral edge (2c, 3c) and a second lateral edge (2d, 3d) respectively attached to the corresponding first lateral edge (3c, 2c) and corresponding second lateral edge (3d, 2d) of the second flap, at least one side flap having, near at least one of the first and second lateral edges but at least partially spaced from the latter, at least one pre-fold (7c, 7d) extending from the edge from the bottom to the upper edge, characterized in that the pre-bend (7c, 7d) extends to one end of the upper edge (2a, 3a) of the flank flap (2, 3), said end forming a corner with the corresponding lateral edge (2c, 3c, 2d, 3d). Sac (1) selon la revendication 1, caractérisé en ce que chaque volet (2, 3) de flanc présente au moins une pré-pliure (7c, 7d).Bag (1) according to claim 1, characterized in that each side flap (2, 3) has at least one pre-fold (7c, 7d). Sac (1) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la pré-pliure (7c, 7d) est réalisée par soudure sur le volet de flanc (2, 3).Bag (1) according to any one of claims 1 or 2, characterized in that the pre-bend (7c, 7d) is made by welding on the flap (2, 3). Sac (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le volet de flanc (2, 3) présente au moins une pré-pliure (7c, 7d) au niveau de chaque bord latéral (2c, 3c, 2d, 3d).Bag (1) according to any one of claims 1 to 3, characterized in that the side flap (2, 3) has at least one pre-fold (7c, 7d) at each side edge (2c, 3c , 2d, 3d). Sac (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la pré-pliure (7c, 7d) est rectiligne.Bag (1) according to any one of claims 1 to 4, characterized in that the pre-bend (7c, 7d) is rectilinear. Sac (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le volet de flanc (2, 3) présente une portion biseautée (2e, 2f, 3e, 3f) entre le bord de fond (2b, 3b) et le bord latéral (2c, 3c, 2d, 3d) correspondant.Bag (1) according to any one of claims 1 to 5, characterized in that the side flap (2, 3) has a beveled portion (2e, 2f, 3e, 3f) between the bottom edge (2b, 3b ) and the corresponding lateral edge (2c, 3c, 2d, 3d). Sac (1) selon la revendication 6, caractérisé en ce que la pré-pliure (7c, 7d) s'étend depuis une extrémité du bord de fond (2b, 3b) avec la portion biseautée (2e, 2f, 3e, 3f).Bag (1) according to claim 6, characterized in that the pre-fold (7c, 7d) extends from one end of the bottom edge (2b, 3b) with the bevelled portion (2e, 2f, 3e, 3f) . Sac (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'ouverture est munie d'une fermeture hermétique de type zippable, préférentiellement à curseur (4).Bag (1) according to any one of claims 1 to 7, characterized in that the opening is provided with a hermetic seal zipper type, preferably slider (4). Sac (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le sac est un sac isotherme.Bag (1) according to any one of claims 1 to 8, characterized in that the bag is an isothermal bag.
EP13159583.7A 2012-03-16 2013-03-15 Gusset bag Withdrawn EP2639176A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1252390A FR2988078B1 (en) 2012-03-16 2012-03-16 BAG WITH BELLOWS

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EP2639176A1 true EP2639176A1 (en) 2013-09-18

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EP13159583.7A Withdrawn EP2639176A1 (en) 2012-03-16 2013-03-15 Gusset bag

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EP (1) EP2639176A1 (en)
FR (1) FR2988078B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3050182A1 (en) * 2016-04-18 2017-10-20 Valembal Sa ISOTHERM BAG FOR A GREAT AMPLITUDE OPENING
FR3091269A1 (en) * 2018-12-26 2020-07-03 Thi Kim Thoa Huynh NATURAL FIBER ISOTHERMAL DEVICE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1227060A (en) * 1969-01-15 1971-03-31
FR2758310A3 (en) * 1997-01-16 1998-07-17 Maxime Parrochia Flat bottom foldable bag
EP1422155A2 (en) * 2002-11-25 2004-05-26 Polymer-Synthese-Werk Transport container
FR2848190A1 (en) * 2002-12-05 2004-06-11 Papiers Et Cartons De Lamee Bag for carrying objects, has panels stratified in thickness and formed by superimposition of external and internal films, and sheet with visual motifs inserted between two films in one main panel, where film is translucid
EP1609731A1 (en) * 2003-03-26 2005-12-28 Kao Corporation Method of manufacturing self-supportable bag
EP1728732A1 (en) * 2005-06-01 2006-12-06 Imball-Center S.r.l. Thermal insulating bag
WO2009016572A1 (en) * 2007-08-02 2009-02-05 The Iams Company Burst resistant side gusseted bag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1227060A (en) * 1969-01-15 1971-03-31
FR2758310A3 (en) * 1997-01-16 1998-07-17 Maxime Parrochia Flat bottom foldable bag
EP1422155A2 (en) * 2002-11-25 2004-05-26 Polymer-Synthese-Werk Transport container
FR2848190A1 (en) * 2002-12-05 2004-06-11 Papiers Et Cartons De Lamee Bag for carrying objects, has panels stratified in thickness and formed by superimposition of external and internal films, and sheet with visual motifs inserted between two films in one main panel, where film is translucid
EP1609731A1 (en) * 2003-03-26 2005-12-28 Kao Corporation Method of manufacturing self-supportable bag
EP1728732A1 (en) * 2005-06-01 2006-12-06 Imball-Center S.r.l. Thermal insulating bag
WO2009016572A1 (en) * 2007-08-02 2009-02-05 The Iams Company Burst resistant side gusseted bag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3050182A1 (en) * 2016-04-18 2017-10-20 Valembal Sa ISOTHERM BAG FOR A GREAT AMPLITUDE OPENING
FR3091269A1 (en) * 2018-12-26 2020-07-03 Thi Kim Thoa Huynh NATURAL FIBER ISOTHERMAL DEVICE

Also Published As

Publication number Publication date
FR2988078B1 (en) 2017-02-24
FR2988078A1 (en) 2013-09-20

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