BR112017026320B1 - FOOD PACKAGING CONTAINING AN INNER BAG - Google Patents

Abstract

FOOD PACKAGING CONTAINING AN INNER BAG. It is a package comprising a container (2), and a closing system (3) consisting of a frame (31) and a lid (32) hinged to the frame and capable of closing the container opening (21) in a nested way. An upper fitting part (13) of the frame tightly covers the upper rim (21a) and a lower and insert part (35) is provided to project into the interior volume (V) of the container. The gusseted bag (B) stored inside the container in a predetermined position unfolds from a partially open configuration to a fully open configuration due to a pressing effect of axial guide extensions (E1, E2, E3, E4 ) defined by the insertion part and engaged with a single opening (11) of the bag. The insert part (35) has one or more slots (61, 62, 63, 64) defined between two of the axial guide extensions, facilitating full deployment of the bag sidewall.

Description

FIELD OF THE INVENTION

[001] This invention relates to a package that has a closure cap adapted to provide easy access to a product contained in a bag used as a refill. More specifically, the invention relates to a food package adapted to make the installation of a gusset-type bag inside an outer container easier.

BACKGROUND OF THE INVENTION

[002] Gusset bags that have a flexible sidewall are well known to contain a variety of products, especially flexible food products. Refillable food pouches are known, for example, from WO 2014/120258. However, for air-sensitive contents, eg powdered milk or cereal, such a refillable pouch cannot be used.

[003] Less sensitive food can also be supplied to a secondary market as a sealed gusseted bag or similar flexible bag. Conventional gusset-type bags for this purpose are provided with two opposing gussets. After a top portion is removed, the gussets can unfold from a partially open configuration to a fully open configuration. Such flexible bags (eg as disclosed in US 2011/0293208) are not well suited for a pouring operation.

[004] Rigid boxes are sometimes used to receive food content initially stored in flexible bags. The box can be repeatedly filled with such food. But in practice, loss of food product from a gusset bag or similar bag often occurs during spillage of the flowable food content into the box.

[005] In addition, boxes are not particularly well suited for storing a gusset-type bag that is in an open state, due to the fact that product can flow between the flexible bag and the inner face of the box. This typically occurs when the entire package is turned upside down in an unopened state of the box. Furthermore, if the box is not correctly closed by a lid positioned on top of the box or if the sealing performed by the lid is not efficient, the product can be quickly changed and product loss can occur.

[006] WO 2012/085117 discloses a gusset-type bag stored in a box. The side wall of the box has an inner circumference adapted to guide the annular side of the bag, whereby the bag remains in a predetermined position in the package. Due to the guidance by the side wall of the box, the inner flexible bag cannot move laterally inside the container (bag fits inside the box). Such cooperation between an inner bag and an outer container, with a single predetermined position of the inner bag, is well known in the art. The gusseted bag has ears that extend beyond the top edges of the box. In order to correctly close the top of the box, a closure system is provided with an annular frame that accommodates the upper edges of the box with the lugs folded around these upper edges. Due to this accommodation, the gusset bag in the predetermined position is wide open and there is no leakage of product between the bag and the side wall of the box, provided that the lugs have been correctly folded and positioned.

[007] With such an arrangement, a wearer may find it difficult to precisely position the ears or the annular frame. Additionally, the need for large lugs (useless for the purpose of storing the food product that is integrally contained within the box) can significantly increase the volume of the gusset bag prior to integration into the box.

[008] Documents JP2012197105A, JP2012197106A, JP2012197107A, JP2012197108A, JP2012197109A and JP2012197110A also refer to refillable food pouches that are kept in a rigid box. At the top of the box, a specific insert is used to obtain a wide opening of the pouch and a cover can close off the top access opening defined by the insert.

SUMMARY OF THE INVENTION

[009] Therefore, an object of the present invention is to provide a resealable package that provides the contents of the package with good protection each time the lid is closed and that is efficiently refillable.

[010] To that end, embodiments of the invention provide a package for a food product comprising: - an outer container that extends longitudinally around a central geometric axis from a bottom to a top face that has an opening, in which outer container has an upper peripheral rim that delimits the opening and a side wall that defines an interior volume of a predetermined height, wherein the side wall has two opposing, preferably flat, internal faces, - a closure system comprising a frame which is annular and removably secured to the upper peripheral rim, and a lid hinged to the frame to allow movement of the lid between an open position and a closed position, in which the lid closes the opening of the container, the frame comprising an upper fitting portion covering the upper lip; - a flexible, food-filled gusset-type bag, comprising a bottom, an upper end adapted to define an opening of the bag on the side opposite the bottom, an annular side wall provided with at least one gusset, preferably two opposing gussets , such that the bag is adapted to unfold from a partially open configuration to a fully open configuration, wherein the side wall of the outer container has a shape, especially a cross-sectional shape, and size which corresponds to the annular side wall of the bag in order to prevent the bag from being eccentrically positioned within the interior volume (predetermined position of the bag);

[011] wherein the frame further comprises: - an insert part which extends into the interior volume and is spaced radially inwardly from the side wall of the outer container, wherein the insert part extends annularly integrally below the upper lip, and - a plurality of axial guide extensions belonging to the insertion part and configured to engage the bag through the opening of the bag to keep the bag open, wherein the insertion part has a groove defined between two of the extensions of axial guidance, along one of said two opposite inner faces.

[012] The bag can completely cover the inner face of the bottom and is close to the side wall of the outer container in order to be in contact with the two opposite inner faces or substantially coaxial with the side wall of the outer container with a small gap in its periphery. More generally, it is understood that the bag is sized so that it cannot move significantly in a radial direction, i.e. no more than 5 or 6 mm, preferably less than 4 mm, when placed in a storage position. in the inner volume. Such small clearance typically represents less than 9 or 10 percent of the width or equivalent size of the bag, as the smallest container size is typically greater than 60 mm, preferably greater than 80 mm.

[013] With such an arrangement of the closing system, the insertion part can efficiently contact and push (radially outward) the bag side wall portions during frame assembly, thanks to the axial extensions, without interfering with the bag unfolding thanks to the groove. Since the bag sidewall is substantially the same shape as the container near the bottom, there is no particular requirement for any bag centering. The top of the side wall of the bag does not need to be particularly stretched or folded any more than the rest of the side wall, which is of interest to prevent unwanted cracking in the bag material.

[014] Additionally, the amount of plastic material to form the insert part is reduced, as the groove typically defines a significant spacing between two axial extensions on the same side. This spacing can be greater than 30 mm near the free edges of the axial extensions.

[015] When the bag and container have a polygonal shape, for example a rectangular shape, the axial guide extensions can each be provided with an angled free edge in order to guide each of the top edges of the bag in a peripheral area which is defined between the insert part and the top of the container. The bag is typically a pre-produced bag provided with gussets so that the flat outer faces on the side wall are readily available, such outer faces corresponding to the corresponding inner faces of the container. It should be understood that the expression “partially open configuration” may correspond to a free configuration where the opening is close to its size when the bag is configured in a fully open state. Thus, the term “partially open” can simply be interpreted as “not completely open” (typically not open enough to have a regular gap between the top of the bag and the container).

[016] According to a particular feature, at least one of the two opposing internal faces is defined by a panel in contact with the upper fitting part and extends between two connections (preferably curved) that each define an angle , preferably about 90°, between two adjacent panels of the side wall of the outer container.

[017] According to a particular feature, the side wall of the outer container is defined by four panels interconnected at the respective connections that each extend rectilinearly from the bottom to an angle of the upper peripheral edge, while the wall The annular side of the bag has four edges and has a predetermined periphery sized and shaped so that each edge is less than about 3 mm from one of the connections when the bag is stored in the inner volume and the top edge is engaged in a groove in the fitting part. With such an arrangement, positioning of the bag is intuitive and easy, and the top edges of the bag can be positioned as a liner covering the inner face of the side wall of the container. Since the bag is held in a completely open state by the insertion part (with the side wall of the bag thus extending longitudinally with a small radial spacing with respect to the container), the risk of bag folding is prevented when recovering the bag. food content.

[018] According to a particular feature, one of the axial guide extensions extends between two grooves from a base adjacent to a given hole, in which such hole not intersected by the central geometric axis is delimited by a part of the frame that is integrally covered by the lid in the closed lid configuration. This determined hole is typically delimited by a holding device for a measuring tool and is preferably circular. The axial guidance extension adjacent to the determined hole may optionally have an L-shaped or C-shaped section when viewed in a plane perpendicular to the central axis.

[019] According to a particular feature, the groove extends between two flat portions of two axial extensions that are angled to each have an L-shaped section when viewed in a plane perpendicular to the central axis. This configuration of the axial extensions is well suited to prevent unwanted (bag) bending near the angles of the outer container, especially when the package has a polygonal shape with angles of about 90°.

[020] According to a particular feature, the insertion part comprises four bridged portions each tapering towards the bottom with small deviation compared to the central geometric axis, wherein said small deviation is preferably less or equal to 10°, each of the four bridged portions comprising: a groove extending between two axial guide extensions; and an arcuate section extending above the groove between the two axial guide extensions.

[021] The curved edge of the arched section may delimit all or part of the groove and may have a more or less salient curvature.

[022] Optionally, the insertion part has four substantially planar external faces, each arcuate section defining an intermediate section of said external faces of the insertion part.

em que H1 é a altura máxima da parte de inserção, H2 é uma altura do saco do tipo nesga flexível na configuração completamente aberta, e H é a altura determinada do volume interior.[023] According to a particular feature, the insertion part is such that the following relation is satisfied:

where H1 is the maximum height of the insertion part, H2 is a height of the flexible gusset bag in the fully open configuration, and H is the determined height of the interior volume.

[024] The height H2 is measured from a bottom part of the bag which is typically flat and in contact with the food content. The bag in the open state thus does not extend beyond the container opening and the difference in height (compared to the level of the container opening) may be less than about 4 or 5 mm, preferably about 2 or 3 mm. With such a small difference in height and since the insertion part (by definition) is received within the volume of the bag, with sufficient height, the bag cannot escape vertically from the fully open configuration. More generally, having a small radial clearance (less than 2 or 3 mm) and a small axial clearance for the bag is advantageous in preventing significant deformation of the bag sidewall (or any change in relative position between the bag and the bag part). insertion) when the entire package is turned upside down.

[025] Since the bag can typically be held without any creasing or any collapse on the top side (the side wall of the bag having a shape that corresponds to the inner face of the rigid container), a partially or completely transparent box could also advantageously be used with a satisfactory information display marked on the outer faces of the bag sidewall.

[026] In some variants, the height of the bag may be smaller, provided that the insertion part has a greater height and/or the container is provided with one or more containment members or similar adjustment means to support the bag at a distance of the background level.

[027] In preferred embodiments of the invention, moreover, use is made of at least one of the following provisions: - the bag and the container each have a polygonal shape, preferably a rectangular shape, in which the extensions of Axial guides are each provided with an angled free edge in order to guide each of the upper edges of the bag in an upper peripheral area which is defined between the insertion part and an upper part of the container, integrally above the edges. angled free edge branches in a snapped docking configuration (typically each branch of the angled free edge is at least 10 mm longer). - the insertion part comprises four axial guide extensions which located integrally inside a virtual cuboid, which has a first rectangular section less than or equal to a second rectangular section defined by the bottom of the bag (peripheral rectangular edge of the bottom of the bag ). - the insertion part is provided with a first groove and a second groove on the side opposite the first groove, wherein each of the first groove and the second groove is wider than it is high, the bag comprising two opposing gussets which unfold through the first slot and the second slot, respectively. - the package further comprises a measuring tool having a cup and a handle, wherein the measuring tool is received by a holding device in a storage position, in which the handle extends integrally above the insertion part (with such a storage position, typically a horizontal position, the measuring tool can extend above the food content and not interfere with the axial guide extensions of the insert). - the first groove is at least partially adjacent to the cup in the storage position, where the retention device is connected to a first side of the frame, the second groove extends close to a second side of the frame which is parallel to the first side of the frame. frame (consequently, the cup is held at a distance from the central axis of the container, while the handle to be picked up by the user may intersect this central axis or extend close to this central axis). - the bag has an inner face equipped with at least one annular elastic band initially energized that interferes with the two gussets, configured to deform radially outwards (due to its energized state and its shape memory) so that the bag automatically unfolds the from an initial partially open configuration to another configuration that is similar or identical to the fully open configuration (the bag, which is typically a refill initially fitted with a closing band at the top, can reach the fully open configuration more easily with this effect guidance obtained after removing the closing band). - in the storage position, the cup is shifted integrally with respect to a virtual median plane of the container that intersects the first groove and the second groove. - the frame comprises an annular transition part between the insertion part and the socket part, where the transition part tapers downwards and defines an outwardly facing concave surface (the curvature of the annular transition part is suitable for pushing the top edges radially outward rather than downwardly crushing such top edges; furthermore, such a transition part is of interest to provide an efficient guiding effect by the insertion part without exerting an undesirable vertical thrust or tearing action). - the annular transition part has a radial extent (measured from the junction with the socket part) which is greater than a maximum radial extent of the insertion part. - in the fully open configuration, the flexible bag defines an upper face that faces or is in contact with a continuously curved outer surface that connects tangentially to an annular outer surface defined by the insertion part, wherein the curved outer surface having an upper portion adjacent a groove to which the upper lip is engaged. - the frame comprises a leveling element provided with two opposite ends and a rigid free edge that extends transversely in relation to the central geometric axis, between the two opposite ends, where the leveling element is adjacent to the same axial guide extension at each of the two opposite ends. - the frame comprises at least one resilient sealing element more flexible than the axial extensions (preferably an annular gasket) to define one or more radial contacts between the bag - in an upper part thereof - and the frame. - the two opposite inner faces are less spaced in an area close to the bottom of the container, in order to have less space between the bag and the container in a lower part of the interior volume.

BRIEF DESCRIPTION OF THE DRAWINGS

[028] Other features and advantages of the invention will become evident in the course of the following description, which is given by way of non-restrictive example with reference to the figures, in which: - Figure 1 is an exploded perspective view of a packaging of according to a first embodiment according to the invention, showing the lid in the open position and the inner gusset-type bag disposed in the inner volume of the outer container; - Figure 2 is a cross-section through the upper part of the package of Figure 1 showing the lid almost in the closed position and the insertion part inserted through the mouth of the bag; - Figure 3 is a perspective view of a measuring tool that can be retained below the lid in a storage position according to the invention; - Figures 4a and 4b are two successive perspective views (which do not show the lid for the sake of simplicity) illustrating the guiding effect of the insertion part when inserted through the mouth of the gusset bag; - Figure 5 is a top view of a package according to a second embodiment according to the invention; - Figure 6 is a perspective view of the unopened gusseted bag that can be used as a refill; - Figure 7 illustrates in cross section a stacking between two external containers; - Figure 8 is a cross-sectional view through a package according to the invention, showing a leveling operation; - Figure 9 is a perspective view of a frame used to accommodate a gusset-type bag in an external container, according to a third embodiment; - Figure 10 is a perspective view showing an outer container and a gusset-type bag ready to be inserted into the outer container, before the assembly of a closing system provided with the frame shown in Figure 9.

DETAILED DESCRIPTION

[029] In the various Figures, identical reference numerals designate identical or similar elements.

[030] It should be noted that the following detailed description and illustration are directed to a package 1 including a box and a flexible gusset type bag or similar bag B that is not resealable (not tightly closed after removal of a top portion) , wherein the packaging is well adapted for easy retrieval of the food product contained in bag B. A variety of products may be contained in bag B, preferably food products such as powdered milk, dry or powdered drinks, dry soups, coffee , tea, whey powder or the like, buttermilk powder, seasonings, and other flowable solid food products.

[031] Referring to Figures 1 to 2 and 7, the package 1 comprises a container 2 and a closing system 3. The container 2 is open on a side opposite its bottom 20 and can be in the shape of a parallelepiped, provided with an oval section or any shape with a bottom substantially as wide as the aperture, as understood by those skilled in the art. An annular side wall 4 of container 2 extends around a central vertical axis X to a top 2a which defines a peripheral upper lip 21a. An outer collar 2c can be provided and the top 2a can be defined as an annular projection that projects upwards from a top face defined by collar 2c. An opening width 21 surrounded by a perimeter 22 is defined by the flange 21a which is rigid (the optional collar 2c increases the rigidity of the flange 21a to prevent any deformation).

[032] The cross section perpendicular to the central geometric axis X of container 2 can be basically rectangular with rounded corners. This ensures the vertical strength of packages 1 when stacked. Figure 7 shows in more detail a way of stacking the packages 1, using a recess in the bottom 20 to at least partially house the top wall 33 of the lid 32. For reasons of convenient handling, again, the cross section is preferably inscribed on a rectangle measuring 100 to 140 mm by 80 or 90 to 125 mm. The interior volume V of the container 2 has a certain height H, which is here close to the entire height of the container 2. The bottom 20 can be provided with support means 20a, for example feet or an annular base that can be projected to low with respect to the flat bottom wall 20. Such support means 20a can reinforce the strength of the bottom 20 when configured as an additional outer layer of the container 2. The lower part 40 of the side wall 4 can have a slightly narrower section as illustrated. in Figure 1.

[033] When the side wall 4 of the container 2 has a rectangular cross section, two opposite inner faces F1, F2 are defined by flat panels and the distance between these inner faces F1, F2 can correspond to a width of the inner volume V. A determined height H, here measured from a flat inner face F3 of the bottom 20 on the top face is preferably between 120 and 190 mm to provide the normal volume for boxes intended to contain powdered baby milk. Therefore, a relatively deep container whose opening 21 needs to be made as wide as possible to avoid the difficulty of extracting dust from close to the bottom 20 of the container 2. Furthermore, this opening width 21 allows a measuring tool 100 to be used to collect dust or similar food content 5.

[034] Due to this basically rectangular cross section, shown in Figure 1, the perimeter 22 of the opening 21 of the container 2 can be considered to have a first long side 22a, a second opposite long side 22b, and first and second short sides 22c, 22d connecting the long sides. Four corner portions or similar connections 6 can be defined in the side wall 4 to prevent the formation of sharp edges. Here, the four side wall panels 4 are provided with four connections 6, each adapted to interconnect two adjacent panels forming an angle of about 90°.

[035] Without implying any restriction, the container 2 can be made as a single thermal blow molded plastic component. The plastic is preferably a multilayer composite which forms a highly effective oxygen barrier which is used for a food content 5 such as milk powder, however the container 2 could, of course, be produced from some other material. , especially metal or a multi-layer cardboard.

[036] Referring to Figures 4a to 4b and 6, the food content 5 is stored in bag B, which has a flexible side wall 8, a bottom 8a and a top portion defined by a closing band 10 intended to be cut or torn. Here, a front wall W1 and a rear wall W2 are interconnected by two opposing gussets 9a, 9b which extend parallel to a longitudinal axis of the flexible sidewall 8. Welds or sealing joints can be provided to define bag B. The closing band 10 can be a sealed part obtained by heat sealing. Bottom 8a may be defined by lugs in an overlapping configuration with a sealing area defined between at least two lugs.

[037] In some embodiments, the B bag may be a single-plot construction of a film. However, in preferred embodiments, the front wall W1, the rear wall W2 and the bottom 8a are obtained by assembling at least two different parts. In such a case, the bag B includes several sealing areas for sealing the parts together (e.g. with heat-sealed parts). In a particular embodiment of the present invention as shown in Figure 6, the bottom 8a is devoid of any gussets and is typically flat. Each of the two gussets 9a, 9b has an inner edge which extends between the respective inner faces of the front wall W1 and the rear wall W2 when the bag B is closed by the closing band 10 or similar closing means.

[038] The film material used to form bag B can be plastic, such as low, medium or high density polyethylene, polypropylene, polyester (PET), polyamide or any other material that is commonly used in the packaging industry, copolymers or mixtures of the same. The film material may be a single layer blown or cast film, a multilayer coextrusion or laminate. The film material may also include one or more layers of paper, foil, vacuum deposited metal or inorganic aluminum or silicon oxide layer and/or a polymeric barrier layer, such as ethylene vinyl alcohol or polyvinylidene chloride. These examples are non-limiting examples.

[039] It is an important aspect that the material is flexible and capable of allowing a groove 9a and/or 9b to be formed. Here, the two opposing gussets 9a, 9b are provided adjacent the opening width 11. Bag B is therefore a gusset type bag. The upper end defined by upper edges 7 is adapted to define an opening 11 substantially as wide as the bottom 8a, typically of the same shape as the bottom 8a. Furthermore, if the film is a multilayer film, it is preferred that at least the inner layer of the bag B is a heat sealable layer.

[040] Referring to Figure 6, bag B is optionally provided with a top peripheral edge and, prior to a cutting or tearing or peeling action to remove such a top part of bag B, the contents 5 of bag B are not can be retrieved through the single opening 11 of bag B. The top portions of the front wall W1 and the rear wall W2 are typically in an initial flat configuration, as illustrated in Figure 6.

[041] In other words, the content 5 (milk powder or other granular or powdered product, for example) is perfectly preserved in bag B until it is used for the first time, when the top peripheral edge (here defined by the closing band 10) is removed, optionally with the aid of one or more peeling tabs, tearing tabs, weakened areas or the like.

[042] Referring to Figure 6, the closing band 10 or similar top portion of bag B is preferably provided with a line of weakness (in the dashed line) that extends laterally through both walls W1 and W2 very closely, but below the top peripheral edge. The line of weakness can be formed, for example, by punching or dotting the front wall W1, the back wall W2 and other optional lugs with a laser or knife individually before these walls W1 and W2 are sealed together, or collectively. after being sealed together. One or both ends of the line of weakness may end with a groove (not shown), which provides a stress concentration and assists in initiating a tear along the line of weakness when bag B is opened by a consumer.

[043] Here, a simple cut along the dashed line (a straight dashed line in this non-limiting example as shown in Figure 6) is sufficient to provide access to contents 5, due to the fact that the side wall 8 of bag B becomes expands at a sufficient proportion so that the respective top portions of front wall W1 and rear wall W2 are not in the initial flat configuration. Preferably, the upper level of food content 5 extends an axial distance from the upper edges 7 which extend along a cut line corresponding to the dashed line (e.g. the upper level is between 25 and 90 mm below the level of edges 7).

[044] Inside bag B, the initial level of food content 5, typically powdered material, corresponds to a height H3 that is significantly less than a predetermined height H2 of bag B when bag B is in a fully open configuration ( as shown in Figure 4b, for example). The H3:H2 ratio can be between 1:2 and 4:5 in some embodiments.

[045] Now, referring to Figures 1 to 2 and 4a to 4b, it can be seen that the bag B, once opened, can be stored in the inner volume V of the container 2. Obviously, the gusseted bag B can also be stored in container 2 and then opened by excising the closing band 10.

[046] Although the interior volume V is illustrated here as completely corresponding to the external shape of the container 2, it is understood that such interior volume V can be adjusted depending on the specific configuration inside the container 2. The height H2 of the bag B is less to the specified height H so that the upper lip 21a extends integrally above the upper edges 7 of the bag B. The annular side wall 8 of the bag B is shaped to correspond to the side wall 4 of the outer container 2 for the purpose of prevent bag B from being eccentrically positioned within the interior volume V. In other words, the position of bag B with respect to container 2 prior to fixing the frame 31 is a predetermined position. As clearly evident from Figures 1, 4a to 4b and 7 in particular, such a predetermined position is due to the similar cross-sectional shape of the bag sidewall 8 compared to the cross-sectional shape of the sidewall 4 of the outer container 2 A natural vertical guidance of bag B, which is initially in a full state, is obtained by having bag side wall 8 closely surrounded by side wall 4.

[047] The closing system 3 is here provided with an annular fitting part 13 comprising a peripheral groove G, in which the upper edge 21a is fitted (wherein the annular projection defined by the top 2a is here received in the groove G) . The fitting part 13 is here configured as a top part of an annular frame 31 which surrounds the opening 21.

[048] The closing system 3 also comprises a lid 32 hinged in relation to the frame 31 to allow movement of the lid 32 between an open position and a closed position. The frame 31 is thus directly fixed in a removable and firm manner to the upper peripheral rim 21a, while the lid 32 closes the opening 21 of the container 2 when engaged with the fitting part 13 of the frame 31. The lid 32 comprises a wall top 33 and is provided with a circumferential side wall 34 extending from the top wall 33 and an inner skirt 36 regularly spaced from the circumferential side wall in order to define with the side wall 34 a continuous groove CG. With such a configuration, the fitting part 13 can be received in the continuous groove CG. The inner face of the socket part 13 may optionally be in radial contact with the inner skirt 36 in the closed position of the lid 32 (wherein the inner skirt 36 presses at least partially against such inner face of the annular socket part), for the purpose of to prevent food content 5 (in a powder form, for example) from accumulating in a lid-frame contact area 25. Here, as illustrated in Figure 2, such a contact area 25 is provided between an angled outer surface of the fitting part 13 and a sealing surface of the circumferential side wall 34. Consequently, the lid 32 can be repeatedly closed with an efficient sealing effect.

[049] The top wall 33 is here substantially flat to reduce the height of the cover 32. The frame 31 is provided with an insert part 35 which optionally makes the frame 31 higher than the cover 32. The cover 32 and the frame 31 are hinged together through a connection that allows the lid 32 to be moved with respect to the frame 31 and the container 2 between an open position shown in Figure 1, in which the opening 21 is widely accessible, and a closed position, shown in Figure 1. Figure 7, for example, in which the lid 32 covers this opening 21. So, this is a resealable package, the lid 32 of which is handled on each occasion, for example, to prepare baby bottles.

[050] The connection in this case is an articulated connection 16 (typically one or more live joints) in which the pivot axis is perpendicular to the central axis X. In the presented embodiment, it is a plastic joint 16 formed by a fold line, which allows the lid 32 and the frame 31 to be produced as a single component. This is a component obtained by injecting a plastic, such as polypropylene, for example, into a mold. However, the hinged connection 16 could, of course, be achieved using two separate components mounted together, and it is equally possible to provide some other form of connection between the frame 31 and the cover 32.

[051] Referring to Figure 1, the frame 31 may have substantially the same general circumference as the cover 32 and here comprises first and second short outer sides 31c, 31d defined by the mortise part 13, which correspond to the first and second short sides 22c, 22d.

[052] Although the embodiments shown show a central axis X, which is an axis of symmetry for the container 2 and the frame 31, obviously other configurations can be used depending on the geometry of the side wall of container 4. A frame 31 does not necessarily have the same shape as the section of the inner volume V. In optional embodiments with dividing elements, the side wall 4 surrounding the inner volume V to receive the bag B may correspond to a part of the lateral periphery of the container and includes a split element used to define the upper lip 21a.

[053] Referring to Figures 1 and 5, the fitting part 13 or the container 2 has a projecting member with an engaging lip 18 used for locking. Such an engaging lip 18 can be formed integrally with the annular collar 2c of the container 2. The package 1 here has a locking device provided with a flap T projecting downwards from the lid 32, here from the side wall 34. When the lid 31 is in the closed position, the tab T occupies an engaging position in which a lower handle portion 19 engages the engaging lip 18. Unlocking is accomplished by actuation of the tab T by the hand in a radially direction. external (typically a pulling action). In the closed position, as shown in Figure 7, the cover 32 is adjusted and fitted so that continuous sealing contact is obtained between the fitting part 13 and the cover 32.

[054] Now referring to Figures 1 to 2, 4a to 4b and 8, the pressing to keep the top of the gusset type bag B in a completely open configuration, thanks to an insertion part 35 of the frame 31, will be described.

[055] Bag B, filled with food content 5, opened and stored in the interior volume V, is in contact with the bottom 20 of the container 2 and cannot move substantially due to the small gap between the side wall 8 and all or part of the inner faces of the side wall 4 of the container 2. In fact, the annular side wall 8 here has a shape that corresponds to the side wall 4. The bag B cannot thus be positioned eccentrically inside the inner volume V. In some options , the lower part 40 which is preferably of lower height H4 than the height H3 is configured to locally reduce or suppress the small gap around the bag B (size reduction in the lower part 90 of the interior volume V). Thus, it is understood that the container 2 is configured to define a predetermined position for the bag B which has the opening 11 facing upwards.

[056] In this configuration without the closure system 3 fitted to the upper lip 21a, the bag B is not typically in a fully open configuration. Each of the side wall panels 4 extends between two connections 6 each corresponding to an angle of preferably about 90° as shown in the embodiments shown. When such an angle is defined between two adjacent panels of the container 2, it is understood that the corresponding corner portions of the bag B (stored in the inner volume V) may not be sufficiently close to the connections 6. In fact, recessed parts or folds significant ones (typically in the gussets 9a, 9b) are typically formed, as shown in Figure 1 for example.

[057] The flexible sidewall 8, here due to the gussets 9a, 9b, can unfold from a partially open configuration to a fully open configuration, provided that the upper edges 7 are displaced (under a pressing action) and held in the position distant from the central axis X and along the side wall 4 of the container 2. For this purpose, the frame 31 comprises an insert part 35 which extends into the inner volume V when the fitting part 13 is covering the upper rim 21a with a firm annular contact, and which is intended to be received inside the bag B (above the level of food content 5). In Figure 1, the folding in the partially open configuration is somewhat exaggerated to better illustrate that edges 7 are irregularly spaced from side wall 4.

[058] The insert part 35 is spaced radially inwardly with respect to the side wall 4 of the container 2, wherein such spacing is here obtained due to an annular transition part 38 that interconnects the insert part 35 (interior part of the frame 31) and the fitting part 13 (outer part of the frame 31).

[059] The annular transition part 38 can be radially connected to the socket part 13 as shown in Figure 8, below the tight connection between the socket part 13 and the upper lip 21a. Consequently, the food content 5 cannot escape from the container 2 due to: the firm contact in the groove G; continuous contact in the groove CG, preferably using an inner skirt 36; and if the package 1 is turned upside down, the food content 5 will necessarily return inside the bag B (after, in normal position) due to the fact that the powder or content particles cannot be displaced beyond the concave surface S38 , due to the pressing contact between the top peripheral part of the bag B (on the upper edges 7, such top is in a stretched condition) and the frame 31 (on the continuous transition part 38 and/or the continuous annular upper end of the part insertion 35).

[060] In order to improve radial contact, the frame 31 may comprise at least one resilient sealing element (not shown) more flexible than axial extensions E1, E2, E3, E4 and projecting radially outward from the outer faces. F5, below fitting portion 13. An annular gasket or similar annular resilient member, which is preferably provided close to transition portion 38 (and typically integrally above grooves 61, 62, 63, 64) , defines one or more radial contacts between the bag B and the frame 31. Such a resilient element may be curved or angled to facilitate the insertion of the insertion part 35 through the opening 11.

[061] Referring to Figure 2, the insert part 35 extends annularly integrally below the upper lip 21a and preferably integrally below the optional annular collar 2c. The annular transition part 38 extends substantially at the same level as the collar 2c and tapers downwards, defining an outwardly facing circumferential concave surface S38. In the inserted configuration of the insertion part 35, the transition part 38 may be adjacent to the upper edges 7 of the flexible gusseted bag B to maintain these upper edges 7 in a proximal position with respect to the inner face (including opposite faces F1 and F2) of sidewall 4. In some embodiments, the upper edges 7 are only facing such concave surface S38, with no local or continuous axial contact against this transition part 38.

[062] The insert part 35 is provided with a plurality of axial guide extensions E1, E2, E3, E4 configured to engage the bag B through the opening 11. When assembling the closing system 3 with the bag B that is already extends into the inner volume V, the insert 35 is sufficiently spaced from the container side wall 4 to allow the upper edges 7 of the bag B to completely surround the skirt-like insert 35 with a small gap. The guide extensions E1, E2, E3, E4 are engaged, through the opening 11, the top of the bag B in opposite internal parts (opposite corners or sides). Due to the pressing action of the guide extensions E1, E2, E3, E4, in the snapped configuration of the closure system 3, these localized parts of the bag B are first displaced outwards and then held in an adjacent and stationary position with respect to the to the respective inner faces of the container 2.

[063] Axial guide extensions E1, E2, E3, E4 are not stretching or tensioning the side wall 8 of bag B beyond a virtual cuboid which is defined by the bottom 8a of bag B. Consequently, when the frame 31 is in an assembled state as shown in Figures 4b or 7, each face of the side wall 8 of bag B may be substantially flat. With this configuration, a wide and constant section of bag B is obtained, which is ideal for retrieving the food content 5 near the bottom 8a, using a measuring tool 100.

[064] Axial guide extensions E1, E2, E3, E4 have a height H1 that is greater than the length of each of the two lower straight edge portions defined at the free end (L-shaped free edge FE) of the extensions guide axials E1, E2, E3, E4. Such height H1 may optionally correspond to a maximum height of the insert part 31 and is typically comprised between 5 and 40 mm.

[065] A polygonal shape with at least four angles for both the sidewall 4 and sidewall 8 of bag B is preferred due to the fact that the inner faces of the container 2 can be substantially flat and the axial guide extensions E1 , E2, E3, E4 can each be provided with a flat guide section or two flat guide sections 28, 29 configured in an L-shape when viewed in a plane perpendicular to the central axis (X). The upper edges 7 defined on each side of the bag B are then maintained in a substantially straight position, with no significant ripples in a transverse plane (no bending perceived by the user). The angle of the L-shape can be not less than 90°, which is of interest to provide a guiding effect in two different directions by the same member of the insert part 35. Each axial guidance extension E1, E2, E3, E4 is provided with a curved intermediate section 67 (Figure 4a), which defines a radius of curvature much smaller than the radius of curvature at the connections 6 or at the ends of the short sides 31c, 31d.

[066] The transition part 38 is longitudinally curved to be tangentially connected to the insert part 35 which has a small radial deviation compared to the longitudinal axis X. However, such a small deviation is of interest to progressively increase the pressure towards the inner faces F1, F2 of the container side wall 4. It can be seen that the axial extensions E1, E2, E3, E4 are each less inclined than the transition part 38. The greater deviation of the transition part 38 and of the substantially continuous curvature (no horizontal surface) of the transition part 38 is advantageous here to prevent dust from accumulating in the transition part 38, i.e. outside the bag B.

[067] When the polygonal shape is a rectangular or square shape, the side wall 4 of the container 2 is defined by four panels interconnected at respective connections 6 that each extend straight from the bottom 20 to an angle 211, 212 213, 214 of the upper peripheral edge 21a, as in the non-limiting embodiment of Figure 1. The annular side wall 8 of bag B is provided with four edges 80 (four longitudinal edges) and has a predetermined periphery sized and shaped so that each one of the edges 80 is less than 3 mm from one of the connections 6 when the bag B is stored in the inner volume V and the upper edge 21a is engaged in a groove G of the fitting part 13. Such a gusset-shaped bag B is of simple construction and can correspond to a conventional type of bag.

[068] In the illustrated embodiments, the insert part 35 may comprise four bridged portions 66 interconnected by the axial guide extensions E1, E2, E3, E4. When the guide extensions E1, E2, E3, E4 have an L-shaped section, the insert part 35 defines four substantially planar outer faces F5. Each of the bridged portions 66 (or similar grooved portion) tapers towards the bottom 20 with small deviation compared to the direction of the central axis X. Such small deviation (see Figures 2 and 7 for example) may be less or equal to 10°, preferably less than 4 or 5°. As extensions E1, E2, E3, E4 protrude lower than the arched intermediate sections AS, they may deviate more slightly at the free edge FE (but typically at the same angle of deviation) as the intermediate space D2 with container 2 is maximum. Such a taper is of interest due to the fact that the gussets 9a and 9b can here be progressively moved towards the two opposite faces F1, F2, preferably flat, when the frame 31 is moved close to its engaged position, and then , fitted. More generally, this ensures a more progressive pressing effect in opposite directions (toward the different sides 22a, 22b, 22c, 22d of container 2).

[069] Each of the four bridged portions 66, here, comprises: - a groove 61, 62, 63, 64 that extends between the two axial guide extensions E1, E2, E3, E4 (e.g. groove 63 extends on the same side and between the two extensions E1 and E4); and - an arcuate section AS extending above the groove 61, 62, 63, 64, between the two axial guide extensions E1, E2, E3, E4.

[070] It can be seen that each arched section AS can define an intermediate section of one of the respective external faces F5 of the insert part 35. With such a configuration with four grooves 61, 62, 63, 64, each intermediate section of the upper edges 7 (here it can be seen that at least the shorter sides have a V-profile before pressing) is pressed only at or near the end of the frame assembly 31 and the upper edges 7 of bag B can be held in place. a substantially rectilinear position, along the flat outer faces F5 at the end of the deployment.

[071] In the non-limiting embodiment of Figure 1, here along the short sides 22c and 22d, a first groove 61 and a second groove 62 are located opposite each other. These grooves 61, 62 are preferably wider than they are tall and the same applies to the additional grooves 63, 64 which extend along the long sides 22a, 22d.

[072] The quasi-vertical configuration of the axial extensions E1, E2, E3, E4 is also advantageous due to the fact that the insertion part 35 does not obstruct bag access. Only the optional holding device 60 for receiving a measuring tool 100 projects towards the central axis X, as shown in Figures 1-5.

[073] In some options, bag B has an inner circumference provided with an initially energized annular elastic band 65 (shown in Figure 4a) interfering in the grooves 9a, 9b and arranged near the upper end. When the closure band 10 is removed, such elastic tape 65 deforms radially outwards so that the bag B automatically unfolds from an initial partially open configuration to another configuration which is similar or identical to the fully open configuration. This option can be used to facilitate the insertion of the insertion part 35 through the opening 11 of the bag B.

[074] Now referring to Figures 1 to 2 and 7, the axial extensions E1, E2, E3, E4 have the same profile in a cross section and have respective free edges in the shape of an L FE in which they all extend substantially in a same virtual transverse plane (horizontal plane in usual position of package 1). Obviously, a lower or greater number of such angled free edges FE could be used, depending on the geometry of the container sidewall 4. Since at least two L-shaped extensions opposite in diameter or opposite L-shaped extensions along a virtual diagonal is of interest to define at least four radially distinct outward directions for pressing against the inner faces of bag B. Consequently, the opening 11 defined by the upper edges 7 of bag B is expanded and the edges 7 are suitably positioned in a same axial level in the upper peripheral area around the insert part 35, integrally above the angled free edges FE and above the grooves 61, 62, 63, 64 in the recessed configuration of the insert part 13.

[075] Here, the small radial gap between the inner face of the container 2 and the upper half of the bag B is substantially constant due to the fact that the upper edges 7 are not excessively stretched radially outwards. The change in geometric conformation as illustrated at the top of Figures 4a and 4b occurs at the constant surface for the bag (in excessive stretching which causes deformation of the bag material).

em que H2 é a altura predeterminada do saco do tipo nesga flexível B na configuração completamente aberta. Em referência à Figura 2 e 4b, tal disposição garante que as bordas superiores 7 estejam na parte superior (que é mais estreita que a parte inferior com distância radial máxima D2) do espaço intermediário anular definido entre a parte de inserção 35 e a face interna correspondente (por exemplo, a face F1 ou F2) do recipiente 2.[076] The insert part 35 has a maximum height H1, which is obviously less than the determined height H of the inner volume V, and typically less than 30 mm. In preferred modalities, the following relationship is satisfied:

where H2 is the predetermined height of the flexible gusset bag B in the fully open configuration. Referring to Figures 2 and 4b, such an arrangement ensures that the upper edges 7 are in the upper part (which is narrower than the lower part with maximum radial distance D2) of the annular intermediate space defined between the insert part 35 and the inner face. corresponding (e.g. face F1 or F2) of container 2.

[077] When the package 1 is turned upside down, it is understood that a mass of food content 5 accumulates inside the volume defined by the closing system 3 and around the insertion part 35. Here, with a bag B which has height H2 as shown in Figures 4a-4b and not radially separated more than 5 or 6 mm from container 2 on each side, preferably not more than 2 or 3 mm, there is not enough empty space in around bag B (also see Figure 7) to allow for significant warping and bending (even in an inclined position, no significant lateral overhang can be formed). Furthermore, since the space around the insert part 35 is small, the pressure exerted by the food content 5 close to the edges 7 (when the package is turned upside down) is not sufficient to locally deform the bag B, through In addition, there is no substantial loss of product.

[078] Obviously, the insert part 35 can be configured with a reduced number of grooves and/or have a height difference for at least one side of the insert part 35. More generally, the insert part 35 is provided with a or two grooves 61, 62, defined between two of the axial guide extensions E1, E2, E3, E4, and which extend along one of the two opposite inner faces F1, F2 (here along the short sides 22c, 22d of the container 2). When it has only one groove 62 and two slits 9a, 9b, it may be easier to tilt the frame 31 slightly to the non-grooved side 31c, so that that side 31c pushes a first slit 9a towards the corresponding face F1 or F2. In this way, the second groove 9b which is less stressed than the first groove 9a can unfold through the groove 62.

[079] The groove 61, 62, 63, 64 opens downwards and is preferably not divided into several notches or thin longitudinal grooves. Such a groove 61, 62, 63, 64 can be obtained by molding the frame 31 or by a cutting operation. Obviously, the term "groove" should not be interpreted in a restricted manner, as understood by one skilled in the art.

[080] Now, the arrangement of a device for interacting with a measuring tool 100 is described with reference to Figures 2 to 3, 5 and 7 to 8.

[081] Regarding the measuring tool 100 as illustrated in Figures 3 and 5, this is similar to a spoon in the modalities shown, i.e. it has a cup 101 that defines a fixed measuring volume and is, in such an option, substantially cylindrical to the open side of that cup 101. A handle 102 extends from the cup 101 to a free end. Thus, the measuring tool 100 has an elongated shape and is made of plastic or equivalent material. For a circular container 2, the length of the measuring tool 100 must, of course, be less than the inner diameter of the frame 31. For a rectangular container 2, this length must be less than the inner diagonal of the frame 31. The measuring tool 100 is a measuring device of predetermined shape, preferably designed to be sold with the entire package 1, possibly without the gusset type bag B in some options. However, it is understood that the fixed measuring volume of such a measuring tool 100 is specific to the content in question, here, a food product such as powdered milk.

[082] When sold with package 1, the measuring tool 100 may be initially encased in a bag, within the inner volume V and/or below the top wall 33 of the lid 32, or in a separate bag attached to an outer surface. of the container 2. At least after the closure system 3 is first opened, the measuring tool 100 can be received through an orifice 60a in a retaining device 60 which is formed in the frame 31, and preferably integrally formed with the frame 31. This hole 60a is sized to retain the cup 101. The retention device 60 is here integrally formed with the closure system 3 and extends between at least a base portion connected to the short side 31c and at least one free edge 72 which is optionally configured as a part of a leveling element 70. The retaining device 60 here extends substantially perpendicular to the central axis X. Referring to Figure 2, the free edge 72, which has m size larger than the opening side of the cup 101, it can be curved or straight. The rigid free edge 72 may extend between the two opposite ends 73, 74 of the leveling element 70 which are connected to the inner annular face of the frame 31. The leveling element 70 may be connected to the two adjacent sides of a polygonal frame (here , the rectangular frame 31). The ends 73, 74 can then each be arranged adjacent to the same axial extent E4 of the insert part 35.

[083] As shown in Figure 8, the base portion BP of the retention device 60, opposite the free edge 72, can be defined at a junction with the annular transition portion 38 that extends longitudinally between the socket portion 13 and the insert part 35. The free edge 72 can be provided with a lower protrusion to carry out the leveling without having to tilt the measuring tool or with a slightly inclined position. In this way, the user is not obliged to tilt the measuring tool 100 almost vertically which could cause some food content 5 to fall out and thereby lead to an erroneous measurement.

[084] In a first embodiment as shown in Figures 1-4B and 8, a stabilizing relief 60b or at least a similar upward projecting projection may be provided adjacent the freeboard 72 and as an extension into a surrounding area 26 of the opening 60. The retaining device 60 is provided with a hole 60a, for example a circular hole, for storing the measuring tool 100 in a storage position, wherein the handle 102 extends integrally above the insertion part. 35, substantially parallel to the top wall 33 of the lid 32. The cup 101 has a minimum height that is greater than the space between the hole 60a and the top wall 33 of the lid 32, so that the measuring tool 100 cannot escape when the closing system 3 remains in a closed position.

[085] Here, the first groove 61 is at least partially adjacent to the cup 101 in the storage position. The cup 101 can extend along an axial guide extension E4 near the junction between the short side 22c and the long side 22b. The retention device 60 can be connected to a first side 31c of the frame 31 and optionally to another side adjacent to the first side 31c. When the insert part 35 is provided with two opposing grooves 61, 62, the second groove 62 can extend close to a second side 31d of the frame 31 which is parallel to the first side 31c. The handle 102 extends from the cup 101 towards such second side 31d.

[086] In order to have the top face of the lid 32 close to the opening plane defined by the upper lip, the lid 32 has a substantially flat configuration and is provided with a top wall 33 that defines a flat top face along the which the measuring tool 100 extends into the storage position. Here, the leveling edge 72 is curved.

[087] It can be seen that the distance D4 between the hole 60a and the upper lip 21a is typically smaller than the maximum height H1 of each axial extension E1, E2, E3, E4 and smaller than the characteristic size D3 (inner diameter per example) from orifice 60a. A distance D4 of less than 10 mm, preferably less than 5 or 6 mm can be provided, which means that the intermediate space D2 between a freeboard FE and the outer container 2 can typically be less than 3 or 4 mm. The distance D5 between the hole 60a and the central axis X can then be at least 20 or 30 mm, which is of interest for the leveling operation (easy access and no need to tilt the measuring tool 100 more than 45°, even when such utensil has a length similar to or greater than the opening size along the short sides 22c, 22d of container 2 - see Figure 5 for example).

[088] While Figures 1 to 4B show a retaining device 60 and/or a free edge 72 of a leveling element 70 in a corner area of a rectangular frame 31, it is understood that such a device to interact with the measuring tool 100 may be arranged differently. For example, Figure 7 shows a retaining member 60 that has a straight free edge 72 arranged perpendicular to the two opposite short sides, at a distance from the corners.

[089] In the variant shown in Figure 5, it can be seen that the retention device 60, also formed in the frame 31, is only connected to the first side 31c and is distant from the curved portions of the frame 31. A clip 69 can be provided adjacent to the cup 101 in the storage position to lock in that position by engagement with a portion of the handle 102. Of course, the retainer 60 can also form a straight free edge 72.

[090] In the variant illustrated in Figures 9 to 10, the attachment of the frame 31 to the container 2 is carried out by engaging the internal reliefs 39 of the frame 31 under the external collar 2c and/or in external recesses of this external collar 2c. Inner reliefs 39 are defined in groove G and project radially inwardly from an outer annular wall of frame 31. Referring to Figure 10, outer collar 2c may have corner portions CP each provided with a recess 82 obtained by the local reduction in height. At the corners of the frame 31, the internal reliefs 39 can be defined below the respective windows 37. This increases the local flexibility of the frame corners and thus facilitates a press fit between the internal reliefs 39 which are defined in the groove G and the external collar 2c of the container 2. It is understood that such type of fixing of the frame 31 can apply to any of the described modalities and in any other variants. The upper peripheral edge 21a may have a rounded surface in cross section, which is of interest for insertion (with progressively increasing contact forces) into the groove G provided with the internal reliefs. With such an arrangement, the frame 31 of the closure system 3 is: - firmly attached to the container 2 on one side (and there is no particular requirement to fix a part of the lid 32 to the container 2); - easy to be removed from the container by a specific pushing action simultaneously under two of the corner parts defined by the frame 31 on the same side (such a pushing action that releases the corresponding internal reliefs 39 on the same side, to obtain a disengaged position) , the closure system 3 which is then removed by simply pivoting the frame 31 relative to the outer collar 2c of the container 2 (the other inner reliefs 39 on the opposite side, typically the hinge side, which is released due to the rotation effect).

[091] As in any of the previously described modalities, an engaging lip 18' is provided to lock the closed configuration of the cover 32 (cover not shown in Figure 9 to clarify the view, in which such cover is already described in Figures 1 and 5), by retaining the tab T. However, here, such an engaging lip 18' is formed on the frame 31 as shown in Figure 9. Obviously, such an option can apply to the previous embodiments. This arrangement may be preferred to simplify container 2.

[092] The frame 31 shown in Figure 9 is similar to the frame shown in Figures 1 and 5 and the hinge connection to the cover 32 is not shown. Although the position of the hole 60a defined by the retaining device 60 is identical to the position shown in the embodiment of Figures 1 to 2 and 4a-4b, the insert part 35 is, here, slightly different. It can be seen from Figure 9 that an axial guide extension E4' extends between the two slots 61, 63 from a base 43 adjacent the hole 60a. The axial guide extension E4' adjacent to the hole 60a may optionally have an either L-shaped or C-shaped section when viewed in a plane perpendicular to the central geometric axis X, in the assembled configuration of the closure system 3. A base 43 can be joined to base portion BP (Figure 8).

[093] Here, the grooves 62 and 64 are less prominent than the corresponding grooves in the other described embodiments. Additionally or alternatively, the axial extensions E1, E2, E3 are slightly steeper than in the examples in Figures 1-2 and 7, with the exception of the axial extension E4' which is elongated and narrower than the other axial guide extensions E1, E2 , E3. This arrangement with some steeper axial guide extensions is of interest to have bag B easily engaged, especially with correct positioning at the top corners of bag B, by the consumer.

[094] Figure 10 illustrates the fact that the shape of the side wall of container 4 corresponds to the annular side wall 8 of bag B. Here, with a length L1 of container 2 significantly greater than the width L2, it is impossible to accommodate the bag open B in another vertical position than a predetermined position within the interior volume V of container 2. Here, the term "match" means that the shape (shape) is identical or sufficiently similar to preclude any inappropriate position in which the side wall 8 of bag B does not extend along the side wall 4 of container 2. Such shape matching is well known in the art (see for example bag-in-a-box systems and similar refill systems) to accommodate an inner bag B in a container external 2 and is clearly understood by the person skilled in the art. Although the height H2 of the open bag B has been described as sufficient to satisfy the H-H2 ratio < 5 mm, it is understood that the bag B does not necessarily have a constant height H2 as non-protruding grooves or irregularities can be provided, preferably at a distance from the corners, without impairing correct guidance by the insertion part 35. For example, such a relationship can be verified only at the top corners of the open bag B.

[095] It can be seen, in Figures 1 and 5, that the hole 60a is not intersected by the central geometric axis. The same applies to the hole 60a defined by the retention device 60 in the frame 31 shown in Figure 9. A relatively flat configuration can be obtained for the cover 32 due to the horizontal storage position of the measuring tool 100, in which such tool is at least less partially inserted into the inner volume V of the container 2.

[096] In these different embodiments, the handle 102 is easy to hold and there is no need to touch the measuring tool 100 in or near the cup 101. The handle 102 of the measuring tool 100 extends in a plane of the opening 21 or above of the upper edge 21a, which means that the consumer's fingers will not touch the inner faces of bag B when holding the measuring tool 100. This centralized position of the handle 100, outside the bag B, is advantageous to avoid contacts that would tend to contaminate the food content 5.

[097] Package 1 can thus combine several features without impairing the closing efficiency and can be reused with a new bag B filled with content 5, after removing the empty bag. Handling the frame 31 of the closing system 3 is not complicated and there is no need to put your fingers inside the new bag.

[098] Clearly, the modalities described above are not restrictive in any way, and several variants as in relation to the geometry of the parts that constitute the container 2 and the closing system 3 are possible without departing from the scope of the invention as claimed.

[099] For example, although the closure system 3 is described herein as made from a single piece of molded plastic, it is understood that an assembly of two or more elements can be used to define the closure system. More generally, it will be obvious that the use of the verb “to understand” and its conjugations does not preclude the presence of any elements other than those defined in any claim.

[0100] The word “one” or “one” preceding an element does not exclude the presence of a plurality of such elements. Any reference sign in the following claims should not be construed as limiting the claim.

[0101] Obviously, the inner circumference of the container 2 is not necessarily dimensioned exactly like the annular side wall 8 of the bag B in order to provide a tight fit of the bag B inside the outer container. An overall fit is sufficient and the inner circumference of the container 2 is more generally adapted to guide the annular side wall 8 of the bag B in order to locate the bag B in a predetermined position within the interior volume V.

Claims (17)

1. Packaging (1) for a food product comprising: an outer container (2) that extends longitudinally around a central axis (X) from a bottom (20) to a top face that has an opening (21) ), the outer container (2) has an upper peripheral rim (21a) that delimits the opening and a side wall (4) that defines an interior volume (V) of a predetermined height (H), the side wall has two inner faces (F1, F2), preferably flat, a closure system (3) comprising a frame (31) which is annular and removably secured to the upper peripheral edge (21a), and a cover (32) which closes the opening (21) of the outer container (2) in a closed position, the frame (31) comprising an upper fitting part (13) covering the upper rim (21a); and a gusseted bag (B) filled with food product (5) and flexible, comprising a bottom (8a), an upper end adapted to define an opening (11) of the bag on the side opposite the bottom, an annular side wall ( 8) provided with at least one gusset (9a, 9b), preferably two opposing gussets, so that the bag is adapted to unfold from a partially open configuration to a fully open configuration; characterized in that the side wall (4) of the outer container (2) has a shape that corresponds to the annular side wall (8) of the bag in order to locate the bag (B) in a predetermined position within the interior volume (V), and wherein the lid (32) is hinged with respect to the frame to allow movement of the lid between an open position and a closed position, the frame (31) further comprising: an insert part (35) extending in the inner volume (V) and is spaced radially inwardly from the side wall (4) of the outer container, the insert part (35) extends annularly integrally below the upper lip (21a), a plurality of extensions of axial guides (E1, E2, E3, E4; E4') belonging to the insertion part and configured to engage the bag through the opening (21) of the bag to keep the bag (B) open, the insertion part (35) has a groove (61, 62) defined between two of the axial guide extensions, at the l ong one of said two opposing internal faces (F1, F2); and wherein the frame (31) comprises an annular transition part (38) between the insert part (35) and the upper fitting part (13), the transition part tapers downwards and defines a concave surface (S38). ) facing outwards, the bag (B) being provided with four edges (7) at the upper end of the bag (B), the annular transition part (38) being configured to push the four edges (7) radially outwards, in towards the side wall (4). 2. Packaging, according to claim 1, characterized in that at least one of the two opposite internal faces (F1, F2) is defined by a panel in contact with the upper fitting part (13) and extends between two connections (6) each defining an angle, preferably of about 90°, between two adjacent panels of the side wall (4) of the outer container (2). 3. Packaging, according to any one of claims 1 or 2, characterized in that the side wall (4) of the outer container (2) is defined by four panels interconnected in respective connections (6) that extend, each one , straight from the bottom (20) to an angle (211, 212, 213, 214) of the upper peripheral edge (21a), while the annular side wall (8) of the bag (B) is provided with four edges ( 80) and has a predetermined periphery sized and shaped so that each of the edges (80) is less than 3 mm from one of the connections (6) when the bag (B) is stored in the inner volume (V) and the upper lip (21a) is engaged in a groove (G) of the fitting part (13). 4. Packaging according to any one of the preceding claims, characterized in that the groove (61, 62) extends between two flat portions (29) of two axial extensions (E1, E2, E3, E4) that are angled to have each an L-shaped section when viewed in a plane perpendicular to the central axis (X), and in which the axial extensions (E1, E2, E3, E4) are each less inclined than the transition part (38), in order to progressively increase the pressure against the four edges (7) towards the side wall (4). 5. Packaging according to claim 4, characterized in that the insertion part (35) comprises four bridge portions (66) each tapering towards the bottom (20) with an angle of deviation compared to the central axis (X), said angle of deviation is preferably less than or equal to 10°, and wherein each of the four bridge portions (66) comprises: a groove (61, 62, 63, 64) extending between two axial guide extensions (E1, E2, E3, E4); an arcuate section (AS) that extends above the groove, between the two axial guide extensions. 6. Packaging according to claim 5, characterized in that the insertion part (35) has four substantially flat external faces (F5), each arcuate section (AS) defining an intermediate section of said external faces (F5) of the insertion part (35). Packaging according to any one of claims 4, 5 or 6, characterized in that the insertion part (35) comprises four axial guide extensions (E1, E2, E3, E4) which are integrally located inside a virtual cuboid having a first rectangular section parallel to the bottom (8a) of the bag, the first rectangular section being less than or equal to a second rectangular section defined by the bottom (8a) of the bag (B). 8. Packaging, according to any one of the preceding claims, characterized in that the insertion part (35) has a maximum height (H1) less than the determined height (H), in which the following relationship is satisfied: H - H2 < 5 mm < H1 where H1 is the maximum height of the insertion part (35), H2 is a height of the flexible gusset bag (B) in the fully open configuration, and H is the determined height of the interior volume ( V), measured between the bottom (20) of the outer container and the opening (21) of the outer container. 9. Packaging according to any one of the preceding claims, characterized in that the bag (B) and the outer container (2) each have a polygonal shape, preferably a rectangular shape, the axial guide extensions (E1, E2, E3, E4) are each provided with an angled free edge (FE) in order to guide each of the upper edges of the bag (B) into an upper peripheral area that is defined between the insertion part (35) and an outer container top (2), integrally above the angled free edges (FE) in a snap-in configuration of the snap-in portion (13). Packaging according to any one of the preceding claims, characterized in that the insertion part (35) is provided with a first groove (61) and a second groove (62) on the side opposite the first groove, each between the first groove and the second groove is wider than it is tall, the bag (B) comprising two opposing grooves (9a, 9b) which unfold when engaging the first groove (61) and the second groove (62), respectively. 11. Packaging, according to claim 10, characterized in that it further comprises: a measuring utensil (100) that has a cup (101) and a handle (102); and a holding device (60) for storing the measuring tool (100) in a storage position, in which the handle (102) extends integrally above the insertion part, in which the first slot (61) is at least partially adjacent to the cup (101) in the storage position, wherein the retention device (60) is connected to a first side (31c) of the frame (31), wherein the second groove (62) extends close to a second side (31d) of the frame which is parallel to the first side of the frame. 12. Packaging according to claim 10 or 11, characterized in that the bag (B) has an inner face provided with at least one initially energized annular elastic band (65) in a folded configuration of the gussets (9a, 9b) ) when the opening (11) of the bag (B) is closed by a detachable closing band (10), the elastic tape extending transversely with respect to the gussets (9a, 9b) and being configured to deform radially outwards when the closing band (10) is detached so that the bag automatically unfolds from an initial partially open configuration to another configuration which is similar or identical to the fully open configuration. 13. Packaging, according to any one of the preceding claims, characterized in that the lid (32) and the frame (31) are a single plastic component. 14. Packaging, according to claim 13, characterized in that the frame (31) comprises a retention device (60) that extends perpendicular to the central geometric axis (X) and is provided with an orifice (60a), in that the retention device (60) is directly connected to the annular transition part (38), preferably at an angled joint adjacent to one of the axial guide extensions (E1, E2, E3, E4; E4'). 15. Packaging according to any one of the preceding claims, characterized in that the frame (31) comprises a leveling element (70) provided with: a rigid free edge (72) that extends transversely with respect to the geometric axis center (X), and two opposite ends (73, 74), the leveling element being adjacent to the same axial guide extension of the axial guide extensions (E1, E2, E3, E4; E4') on each of the two opposite ends (73, 74). Packaging according to any one of the preceding claims, characterized in that the lid (32) comprises an inner skirt (36) which at least partially presses against an inner face of the fitting part (13) in the closed position to prevent food content (5) from accumulating in a lid-frame contact area. 17. Packaging, according to any one of the preceding claims, characterized in that the two opposite inner faces (F1, F2) are less spaced in an area close to the bottom (20) of the outer container (2), with the purpose of of having less space between the bag (B) and the outer container (2) in a lower part (90) of the inner volume (V).

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