PACKAGING AND FLAN COMPRISING AN IMPROVED SETTING MEMBER

专利摘要:
The invention proposes a pre-cut blank and a one-piece packaging, comprising: at least three external panels (121-124) attached by longitudinal fold lines; - a wedging element (12) comprising at least three main panels (21, 22, ...) successively attached to longitudinal fold lines; characterized in that the wedging element (12) has an end wedging device (60, 80) comprising: • an end band (60) comprising as many end panels (61-64) as the number of main panels; At least two longitudinal connecting tabs (80) each connecting a main panel to a corresponding end panel, and having an intermediate transverse fold line (84) to allow the end strip of the main panels to be brought together by folding of the connecting tabs on themselves.
公开号:FR3033772A1
申请号:FR1552314
申请日:2015-03-20
公开日:2016-09-23
发明作者:Gerard Autajon
申请人:Finega SA；
IPC主号:

专利说明:

[0001] The invention relates to the field of packaging and more particularly to the field of packaging obtained from a single blank, pre-cut and folded from a sheet of material, in particular from a sheet of cardboard.
[0002] Such packages are very widely used in many fields for packaging products, for example cosmetics or perfumery products. These products may for example be containers, especially tubes, flasks, etc. Such containers contain substances that may be in the form of fluids, pastes, powders, granules, etc. Of course. it is known to produce closed cases in which a peripheral envelope defines an outer envelope and is provided with closure flaps which are articulated to one of the peripheral panels by a transverse fold line. Such closure flaps may be provided at one and the other of the longitudinal ends of the outer peripheral envelope. Such closure flaps have a shape corresponding to the shape of the closed contour of the outer peripheral envelope and, once folded, often to 900, they respectively close the interior space longitudinally to both of them. two ends of the interior space. Packages are known which comprise an outer peripheral envelope, and a wedging element comprising an internal peripheral cushioning envelope, the wedging element providing a wedging in the two directions perpendicular to the longitudinal direction.
[0003] In some known packages, the wedging element is made independently of the outer envelope and is introduced into it after it has been assembled. In other packages, the outer shell and the wedging element are both obtained from the same single blank pre-cut and folded from a sheet of material. Each peripheral envelope is formed of at least three peripheral panels articulated successively to one another around 3033772 2 longitudinal fold lines which extend in the longitudinal direction, parallel to each other. The fold lines define longitudinal sides of the peripheral panels. Each peripheral envelope is closed on itself to define a closed contour around an interior space in a transverse plane perpendicular to the longitudinal direction of the fold lines. Generally, at least one of the extreme peripheral panels is provided with an assembly flap, also articulated to the end peripheral panel by a longitudinal fold line, to be pressed against an inner or outer face 10 of the other peripheral panel extreme to achieve an assembly, for example by gluing, to form the peripheral envelope. The interior space defined by such a peripheral envelope is closed in at least two directions perpendicular to the longitudinal direction. The outer peripheral panels are included in one portion of the blank, while another portion of the blank comprises the main peripheral panels of the wedging member. The two portions of the blank are connected to each other for example by a connecting panel. Generally, the wedging element has as many main panels as there are external peripheral panels in the outer envelope. Preferably, support lugs are provided between the outer casing and the main casing of the wedging element to maintain a relative position between the two casings, in the two transverse directions perpendicular to the longitudinal direction. It will be understood that a package comprising both an outer envelope and a wedging element, obtained from the same single blank, is already a complex object, both in its design and in its manufacture by folding and assembling the blank. unique. However, it is generally still necessary to provide means for ensuring longitudinal locking of the product in the outer peripheral envelope, in at least one direction in the longitudinal direction. However, in known packages in which the outer envelope and the wedging element are obtained from the same single blank of material, the wedging element ensures only the wedging in the directions perpendicular to the longitudinal direction. In any case, it will be understood that the wedging of the product in the packaging, in the longitudinal direction, remains to be improved, both from the point of view of the design of the package, and from the point of view of the manufacture of the product. packaging and from the point of view of the packaging operation during which the product to be packaged is introduced into the package. The invention therefore aims to propose a new design 10 of a package, and a blank to obtain this package that provides a solution to at least some aspects of this issue of wedging in the longitudinal direction. To achieve such an objective, the invention proposes a package obtained from a single blank, precut and folded from a sheet of material, the type comprises an outer envelope formed of at least three outer panels articulated successively. to each other around longitudinal fold lines which extend parallel to each other in the longitudinal direction, the fold lines define longitudinal sides of the outer panels, the outer envelope being closed on itself to define a closed contour around an interior space in a transverse plane perpendicular to the longitudinal direction. The package comprises a wedging element comprising a main envelope comprising at least three main panels successively connected to one another around longitudinal fold lines 25 which extend parallel to each other in a longitudinal direction. , the fold lines defining longitudinal sides of the panels, the main envelope being closed on itself to define a closed contour around an inner space of the wedging element in a transverse plane perpendicular to the longitudinal direction.
[0004] The wedging element, according to the invention, comprises, at at least one longitudinal end, an end wedging device having one and / or the following additional characteristics: an end band having as many end panels as the number of main panels of the wedging element, articulated successively to one another around fold lines arranged in alignment with the fold lines of the main panels, the headband end-end being closed on itself to define a closed contour around an interior space of the wedging element in a transverse plane perpendicular to the longitudinal direction; for at least two separate main panels, at least one longitudinal connecting lug which connects the main panel to a corresponding end panel, and the connecting lug of a main panel being distinct from the one or more connecting lugs of the main panel; other main panels, the connecting tabs being separated from each other transversely by a separation cutout in the sheet of material. Each connecting lug has an intermediate, transverse fold line which delimits a main portion and an end portion of the tie tab, respectively attached to the corresponding main panel and end panel, to allow a closer of the headband. end of the main casing by folding the two parts of the connecting lug on themselves around the intermediate fold line. According to other optional features of the invention, taken alone or in combination: the end wedging device can be reversibly moved between at least one extended longitudinal position and a longitudinal position inwardly approaching wherein a transverse end edge of the endstop is received within the interior space delimited by the outer shell, recessed longitudinally inwardly relative to the a longitudinal end edge of the package defined by transverse end edges of the outer panels of the outer envelope; in the extended position of the endstop, the transverse end edge of the endstop protrusion protrudes outside the interior space delimited by the outer casing, in overhang longitudinally towards the outside relative to the longitudinal end edge of the package defined by the transverse end edges of the outer panels of the outer shell; At least at the longitudinal end provided with the end stopping device, a closure device comprising at least one closure flap which is articulated on a transverse edge of an outer panel and which cooperates, in a closed position; of the package, with the endstop device to maintain it in its close position; the end wedging device is a tri-articulated device in which the main part and the end part of the connecting tabs are respectively articulated respectively to the main panel and the corresponding end panel by respective lines of pre-marked transverse folding; the length of the main portion, respectively of the end portion, of the connecting lugs, defined as being the shortest distance between the intermediate fold line and the pre-marked transversal fold line of attachment to the main panel, respectively at the end panel, are both less than half of the maximum dimension of the inner space of the wedging element in a transverse direction perpendicular to the corresponding main panel; the end wedging device is a tri-articulated device, and the length of the main part of a connecting leg, defined as being the shortest distance between the intermediate fold line and the pre-transverse fold line The sign of attachment to the main panel is less than the length of the end portion of said link tab, defined as the shortest distance between the intermediate fold line and the fold line. pre-marked transversal connection to the end panel; The length of the main portion of a connecting lug is 5 to 20 percent less than the length of the end portion of said connecting lug; the end stopping device is a bi-articulated device, in which the main part of the connecting tabs is attached to the corresponding main panel by a pre-marked transverse fold line, while the end part of the tabs linkage is attached to the corresponding end panel by a bending zone devoid of pre-marked fold transverse line; between two adjacent link tabs corresponding to two adjacent main panels, the separation cut-out between two tabs is arranged in the form of an openwork, so that each is bent 90 degrees towards the inner space with respect to the panel principal to which the connecting leg is attached, the main parts of the two adjacent link tabs have no overlap; The connecting lugs each have a main portion whose geometry allows it to be received, folded at 900 towards the interior space with respect to the main panel to which the connecting lug is attached, without contacting the main panels adjacent to the panel principal to which the link is attached; The packaging comprises two end stopping devices, one of which is attached to one of the two longitudinal ends of its wedging element, and the other of which is attached to the other of the two longitudinal ends of its stub element; wedging; the packaging comprises a tri-articulated end setting device 30 at each of the two longitudinal ends of the wedging element, and the outer envelope comprises, at each longitudinal end, a closure device, each of which comprises minus one closure flap which is articulated on a transverse edge of an outer panel and which cooperates, in a closed position of the package, respectively with the tri-articulated end wedging device corresponding to maintain it in its close position; The packaging comprises, at a longitudinal end of its wedging element, a tri-articulated wedging device and, at the other end of its wedging element, a bi-articulated wedging device; the wedging element is connected to the outer casing by a connecting panel which is hinged to an outer panel of the outer casing along a longitudinal side thereof, and which is hinged to a panel principal of the wedging element along a longitudinal side thereof; the connecting panel connecting the outer envelope and the wedging element has a transverse dimension which generates an angular offset between the main panels of the wedging element and the outer panels of the outer envelope; the wedging element comprises support lugs which extend in one or more transverse directions and which are each in contact with an internal face of an external panel of the outer envelope to maintain at least one of the main panels; the wedging member spaced apart from said external panel of the outer casing; - The packaging is made in one piece from a single blank of cardboard whose weight is greater than or equal to 180 g / m2, and less than or equal to 2000 g / m2. The invention also proposes a pre-cut blank formed in one piece from a sheet of material, of the type in which: at least three external panels are successively arranged one beside the other, and are attached by longitudinal fold lines which extend parallel to each other in the longitudinal direction, the fold lines defining longitudinal sides of the outer panels; - A wedging element comprising at least three main panels successively attached to one another by longitudinal fold lines 30 which extend parallel to each other in a longitudinal direction, the fold lines defining longitudinal sides of the main panels. The wedging element comprises, at at least one longitudinal end, an end wedging device comprising: an end band comprising as many end panels as the number of main panels of the wedging element; successively attached to one another around fold lines arranged in alignment with the fold lines of the main panels; For at least two separate main panels, at least one longitudinal connecting lug which connects said main panel to a corresponding end panel, and the connecting lug of a main panel being distinct from the one or more connecting lugs of the main panel; other main panels, the connecting tabs being separated from one another transversely by a separating cutout in the sheet of material. Each connecting lug has an intermediate, transverse fold line which delimits a main portion and an end portion of the connecting lug, respectively attached to the corresponding main panel and end panel, to permit a closer of the headband. end of the main panels by folding the two parts of the connecting lug on themselves around the intermediate fold line. According to other optional features of the invention, taken alone or in combination: at least one of the outer panels comprises, at least at the longitudinal end corresponding to the end stopping device, a closure comprising at least one closure flap which is attached to a transverse edge of an outer panel; The end wedging device is a tri-articulated device in which the main part and the end part of the connecting tabs are both attached to the main panel and the corresponding end panel by a line pre-marked transverse folding; the length of the main portion, respectively of the end portion, of the connecting lugs, defined as being the shortest distance between the intermediate folding line and the pre-marked transversal folding line of attachment to the main panel, respectively end, are both less than half the transverse of a main panel adjacent to the main panel to which is attached the connecting lug, defined as the distance between the two longitudinal sides of the adjacent panel; the end wedging device is a tri-articulated device, and the length of the main part of a connecting lug, defined as being the shortest distance between the intermediate fold line and the transverse fold line, marked with attachment to the main panel, is less than the length of the end portion of said link tab, defined as the shortest distance between the intermediate fold line and the pre-marked transverse fold line of attachment to the end panel; the length of the main portion of a connecting lug is less than 5 to 20 percent of the length of the end portion of said connecting lug; the end wedging device is a bi-articulated device, in which the main part of the connecting lugs is attached to the corresponding main panel by a pre-marked transverse fold line, while the end part of the legs linkage is attached to the corresponding end panel by a bending zone devoid of pre-marked fold transverse line; the blank comprises an end wedging device at each of its two longitudinal ends of the wedging element; The blank comprises an end wedging device tri-articulated at each of the two longitudinal ends of the wedging element, and, at each longitudinal end, at least one of the external panels 3 0 3 3 7 comprises a closure device having at least one closure flap which is attached to a transverse edge of an outer panel; the blank comprises, at one longitudinal end of its wedging element, a tri-articulated end wedging device and, at the other end of its wedging element, a bi-articulated end wedging device; the blank comprises at least one support lug which is delimited by a U-shaped cut made in a main panel of the wedging element, the vertices of the branches of the U corresponding to a fold line, the U-shaped cutout delimiting a transverse extension for the adjacent main panel sharing the same longitudinal side; the blank comprises a connecting panel which is attached by a fold line to an outer panel along a longitudinal side thereof, and which is attached to a main panel along a longitudinal side thereof; this ; The blank is made in one piece from a single blank of cardboard whose grammage is greater than or equal to 180 g / m2, and less than or equal to 2000 g / m2. The invention also proposes a package obtained from such a pre-cut blank.
[0005] Various other features are apparent from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention. Figure 1 is a plan view of a blank according to a first embodiment of the invention. Figure 2 illustrates a portion of the blank of Figure 1. Figure 3 is a perspective view of an intermediate step of mounting the package obtained through the blank of Figure 1. Figure 4 is a perspective view of the package obtained from the blank of FIG.
[0006] FIGS. 5A, 5B and 5C are diagrammatic sectional views showing, in section through a longitudinal plane, different portions of the endstop of the package of FIG. 4. FIGS. 6 and 7 are views similar to Figures 1 and 3 illustrating a second embodiment. Figures 8A and 8B are views similar to those of Figures 5A and 5C, for the second embodiment of Figures 6 and 7. Figure 9 is a plan view of a blank according to another embodiment of the invention. invention.
[0007] FIG. 10 is a cross-sectional view of the package obtained from the blank of FIG. 9. FIG. 1 illustrates a first embodiment of a blank 10 according to the invention making it possible to obtain a packaging according to the invention. The blank 10 which is illustrated in FIG. 1 is obtained by cutting a sheet of material and constitutes a single blank in that there is continuity of material in the blank, which is not constituted by an assembly of several previously disjoint elements. The blank material will be a conventional material for this type of packaging. It may for example be a cardboard whose grammage is greater than or equal to 180 g per square meter. Generally, the cardboard used for such packages has a basis weight less than or equal to 2000 g per square meter. However, the use of other materials, including polymeric materials, is conceivable. Preferably, these materials exhibit a semi-rigid aspect in bending about an axis included in the plane of the sheet in which the blank is pre-cut. In Figure 1, and in similar figures, there is shown in solid lines the free or cut edges of the blank. Dashed lines are marked in the material of the blank but at the level of which the blank is not entirely cut. Carrying out the markings may involve one or more techniques, among which may be mentioned for example: 3033772 12 markings may involve one or more techniques, among which may be mentioned for example: the half-flesh cutting technique, in which the sheet of material is cut, but not over its entire thickness; 5 - marking by crushing of material, etc ... These markings are intended to form a pre-marked fold line of the sheet of material for the realization of the packaging. Indeed, the blank 10, which is planar, must be subjected to folding and assembly operations, in particular by gluing, to produce a three-dimensional packaging. The blank 10 has two main portions each intended to form a peripheral envelope. A first portion 12, visible on the left of Figure 1 and visible in Figure 2, is intended to form a main element, said wedging element, packaging. A second portion 14, visible on the right side of Figure 1, is intended to form an outer envelope of the package. The two portions 12, 14 of the blank 10 are connected to each other by a connecting panel 16 whose role will be explained later. First, the first portion 12 of the blank 10 will be described to form a main cushioning member of the package. In this portion, the blank comprises four main panels 21, 22, 23, 24 which are juxtaposed and articulated successively to one another around three fold lines 31, 32, 33 longitudinal. A first fold line 31 connects, delimiting, a distal extreme main panel 21 of a distal intermediate main panel 22. A second fold line 32 connects the distal intermediate main panel 22 to a proximal intermediate main panel 23, which is connected to a proximal proximal main panel 24 around a fold line 33. The fold lines 31, 32, 33 thus define longitudinal sides of the corresponding main panels. The distal end main panel 21 further includes a longitudinal side 30 through which it is connected to an assembly flap 18, the longitudinal side 30 corresponding to a fold line, preferably pre-marked, between the panel 21 and the flap 18. In contrast to the longitudinal side 30, the flap 18 has a longitudinal free edge 29, which is a free edge of the blank 10.
[0008] The proximal end main panel 24 has, opposite the longitudinal side 33, a longitudinal side 34 which, in this embodiment, is formed of a pre-marked fold line by which it is connected to the connecting panel 16. Thus, starting from the free edge 29 of the blank 10, and moving through the blank in a transverse direction perpendicular to the longitudinal direction, one successively encounters the flap 18, the longitudinal side 30, the main distal end panel. 21, the longitudinal side 31, the distal intermediate main panel 22, the longitudinal side 32, the proximal intermediate main panel 23, the longitudinal side 33, the proximal proximal main panel 24, the longitudinal side 34 and the connecting panel 16. In this embodiment, where the main envelope is intended to form a wedging element, the main panels comprise transverse extensions 51, 52, 53, 54, 55 arranged at the longitudinal sides 31, 32, 33 between two main panels. These cross-sectional extensions are optional. Each transverse extension is secured to one of the panels and is delimited by a U-shaped cut formed in the material constituting one of the adjacent main panels. The tips of the branches of the U-shaped cut are located on a fold line 31, 32, 33 between two main panels, while the base of the U is formed by a longitudinal edge of the blank which is offset by a transverse gap. "E" with respect to the corresponding fold line. At each transverse extension, the fold line is interrupted so that when folding two successive panels around their common fold line, the extension remains in the alignment of the panel of which it is integral. It will be seen later that these extensions are intended to form support legs. It is therefore understood that at the level of 3033772 14 of these transverse extensions, the longitudinal sides of the main panels have recesses. However, these recesses do not affect the fold line between two panels. Preferably, the fold lines 31, 32 and 33 are pre-marked except at the level of the transverse extensions. Each of the main panels 21, 22, 23, 24 has opposite upper and lower transverse sides 41, 42, 43, 44, which are arranged at the longitudinal ends of the corresponding panel and which are each materialized by a fold line. In the example shown, the main panels all have the same dimension in the longitudinal direction so that the upper and lower transverse edges of the four main panels are respectively aligned along an upper fold transverse line and a lower fold transverse line. . The notions of "superior" and "inferior" which are used here are only illustrative to simplify the understanding of the description. These notions refer to the orientation of the blank as shown in Figure 1 and do not prejudge any orientation of the blank or packaging in space. It will be understood that the four main panels 21, 22, 23, 24 are intended to form, after folding at 900 around each of the fold lines 31, 32, 33, a main envelope closed on itself defining a closed contour. around an internal wedging space of the wedging element 12. In the illustrated example, comprising four main panels, the closed contour of the main envelope corresponds to a quadrilateral in a transverse plane perpendicular to the longitudinal direction. If the folding is done at 900 around each fold line, we obtain a rectangle, and even more precisely a square in the case where, in addition, the main panels have an identical transverse width. It is also understood that the flap 18 can also be folded at 30 900 around the fold line 30 so that it can be brought in support, plane against plane, against the main proximal end panel 24. An assembly of the flap 18 on the panel 24, for example by gluing, 3033772 15 makes it possible to fix the three-dimensional geometry of the wedging element comprising the four main panels. The fact that a peripheral envelope defines a closed contour does not preclude the peripheral panels that compose it from possibly having windows or openings. In the example illustrated, the proximal extreme main panel 24 has a width greater than that of the other panels. It is thus possible to define a virtual longitudinal assembly line LM1 offset from the fold line 34 connecting the connection panel 10 16 by a transverse gap "e". The transverse distance between the longitudinal virtual assembly line LM1 and the longitudinal side 33 of the proximal extreme main panel 24 is equal to the transverse width of the distal intermediate main panel 22 between its two longitudinal sides 31 and 32. Preferably, this transverse deviation " e "15 corresponds to the transverse distance" e "of the support legs 51-55. When assembling the main envelope, it is planned to make the fold line 30, separating the flap 18 of the main panel 21, coincide with the longitudinal virtual assembly line LM1. The portion of the proximal proximal main panel 24 which lies between the longitudinal virtual assembly line LM1 and the fold line 34 constitutes a transverse extension of the panel intended to form a support lug to maintain a gap between the main envelope of cushioning and the outer casing of the package. According to the invention, the wedging element formed by the portion 12 of the blank 25 comprises, at at least one longitudinal end, an end wedging device. Indeed, as can be seen in Figure 1, the wedging element comprising the four main panels 21, 22, 23, 24 further comprises, at at least one longitudinal end, an end strip 60 30 which comprises as many end panels 61, 62, 63, 64 as the number of main panels. Similar to the main panels, the end panels are successively hinged one to the other around longitudinal fold lines 71, 72, 73 arranged in alignment with the fold lines 31, 32, 33 of the main panels. In the illustrated example, the wedging element is provided with two end bands, one at each longitudinal end, but only one could be provided. As can be seen more particularly in FIG. 2, for at least two distinct main panels, at least one longitudinal connecting lug 80 is provided which connects a main panel to a corresponding end panel, i.e. an end panel arranged longitudinally in the extension of the main panel considered. In the example shown, the four end panels are each connected to the corresponding main panel by a connecting lug 80. In this embodiment, the connecting lugs all have the same geometry. Note that the connecting lug 80 of a main panel 15 is separate from the or the connecting lugs of the other main panels. In this sense, the connecting tabs are separated from each other transversely by a separation cutout 82 in the sheet of materials. Each link tab 80 has an intermediate transverse fold line 84 which defines the tab in two parts: a main part 80a which is attached to the corresponding main panel and an end part 80b which is attached to the end panel corresponding. The main part of the connecting lug 80 is articulated to the corresponding main panel by a pre-marked transverse fold line.
[0009] Within the meaning of this text, a pre-marked fold line is intended to form, at the time of folding, a net hinge between two portions of the material constituting the blank, in this case between the main panel and the main part 80a of The connecting lug 80. At a pre-marked fold line, folding is done where most of the deformation is concentrated on the fold line. At the level of a pre-marked line, the mechanical characteristics of the material, in particular in flexural strength, have a sudden weakening, which makes it a preferred deformation zone with respect to the neighboring zones. The production of a pre-marked fold line may involve one or more techniques, among which may be mentioned, for example, the technique of cutting half-flesh, or marking by crushing of material, etc.
[0010] In the illustrated example, the pre-marked fold line by which each link tab is attached to the corresponding main panel, coincides with the transverse end side 41, 42, 43, 44 of the corresponding main panel. Preferably, the intermediate fold lines 84 of all tie tabs connecting an end strip 60 to the corresponding major panels are aligned in a transverse direction. Preferably, the intermediate fold line 84 of each leg is also pre-marked in the sense defined above. In contrast, in this first exemplary embodiment, the end portion 80b of the link tabs 80 is attached to the corresponding end panel by a bending zone devoid of a pre-marked fold line. In this sense, as illustrated in FIGS. 1 and 2, it is not possible to clearly distinguish the separation between the end panel and the end portion of the corresponding connecting lug. Preferably, there is no abrupt discontinuity in the mechanical characteristics of the material, in particular flexural strength, in the transition zone between the end panel 61, 62, 63, 64 and this end portion 80b of the corresponding link leg 80. In other words, if it is desired to deform the end portion of the connecting lug in a direction perpendicular to the plane of the blank, relative to the end panel, this deformation results in a progressive curvature which extends over a whole transition zone, not a sharp bend at a hinge line.
[0011] The transition zone, between an end panel of the strip 60 and the end portion 80b of the corresponding connecting tab, has a greater stiffness in flexural strength than the transition zone 3033772 18 between a main panel and the main portion 80a of the same link leg, the latter transition zone having the pre-marked fold line. In the illustrated example, each end panel is connected to the corresponding main panel by a single link tab. However, it could be expected that at least one end panel is connected to the corresponding main panel by a plurality of independent link tabs. Furthermore, it is not necessary for all the end panels to be connected to the corresponding main panel by a connecting lug. In particular, in the context of a wedging element with four main panels, it is possible for example to provide that only two of the four end panels, preferably non-adjacent, are connected to their corresponding main panel by one or more connecting lugs. . In the example illustrated in FIGS. 1 and 2, a separation cutout 82 between two connecting lugs has a diamond shape with two longitudinal vertices 82a, 82b and with two transverse vertices 82c. Preferably, the transverse vertices 82c of a diamond separation cutout are each arranged at the end of the transverse intermediate folding line 84 of the two adjacent link tabs. In the illustrated example, a separation cutout 82 has an end, here formed by a longitudinal apex 82a, on the main panel side, which is located at the intersection of the fold line 31, 32, 33 between two main panels. with the pre-marked fold line 41, 42, 43, 44 through which each of the two adjacent link tabs, separated by the cut concerned, are connected to said main panels. In the illustrated example, a separation cutout 82 has an end, here formed by a longitudinal apex 82b, on the side of the end panels, which is situated on the fold line 71, 72, 73 of articulation of these ends. end panels.
[0012] In the example illustrated, all the connecting lugs 80 have the same geometry and all the separation blanks 82 between the connecting lugs also have the same geometry. Thus, the longitudinal vertices 82b of the cutouts 82, on the side of the end panels 61, 62, 63, 64, are aligned along a virtual transverse line LP1. The second portion of the blank 10, intended to form the outer envelope of the package, conventionally has a case, four outer panels 121, 122, 123, 124 articulated successively to one another around lines longitudinal folds 131, 132, 133, which define longitudinal sides of the outer panels. A proximal outer panel 121 is connected by a longitudinal fold line 130, opposite its other longitudinal side 131, to the connecting panel 16, the latter thus ensuring the connection between the two portions 12, 14 of the blank 10. By This outer envelope is folded on itself to define a closed contour around an interior space in a transverse plane perpendicular to the longitudinal direction. In this case, the connecting panel 16 is intended to also form an assembly flap, intended to be assembled, for example by gluing, plane against plane against an inner face of a distal outermost panel 124, to produce and Maintain the three-dimensional shape of the outer shell. In the example shown, the outer panels have an upper transverse width, twice the transverse deviation value "e" to the width of the corresponding main panels of the wedging element 12. length in the longitudinal direction which is greater than the length of the main panels of the wedging element. As illustrated, at least one closure flap 125 articulated along a longitudinal end transverse edge of an outer panel, for example the proximal outermost panel 121 may be provided. In this case, two such flaps of closure 125 are provided to close the case at both longitudinal ends. Each closure flap 125 is preferably provided with a locking flap 126 hinged to a longitudinal end transverse edge of the closure flap 125 opposite its hinge edge on the outer panel 121. In addition, it is possible to provide that the closure of the package at the longitudinal ends is completed by one or more complementary closure flaps 128, they also articulated along a transverse longitudinal end edge of an outer panel 122, 124 other than the external panel 123 opposite the external panel 121 carrying the closure flap 125. To form a package starting from the blank thus described, proceed as shown in Figure 3, first by the formation of the element by folding the flap 18, then successively the main panels 21, 22, 23, 24 respectively around the fold lines 30, 31, 32, 33. At the same time, the end panels 61, 62, 63, 64 d End strips 60 are folded respectively around fold lines 71, 72, 73 to form a wedging element as shown in FIG. 3. As explained above, the outer face of assembly flap 18 is assembled, for example by gluing, against the inner face of the proximal proximal main panel 24 by aligning the fold line 30 with the longitudinal virtual assembly line LM1. The wedging element thus formed thus has a closed contour, in this square example, in a plane perpendicular to the longitudinal direction. We see in Figure 3 the transverse extensions protruding transversely to this contour by a distance corresponding to the transverse deviation value "e". As illustrated in FIG. 3, it will be preferable, prior to the step of winding and assembling the wedging element 12, to a step of pre-folding the connecting lugs 80 of the strip or strips. end 60. This pre-folding consists of folding, for example at 120 ° or 180 °, by folding the entire end strip 60 inwards around the line constituted by the alignment of the edges. 30 transverse 41, 42, 43, 44 of the main panels, then to fold in the opposite direction, for example 120 ° or 180 ° to the outside, the end strip around the intermediate transverse fold lines 84 of the legs 3033772 21 In this way, naturally, a conformation of the connecting lugs 80 is created such that they are slightly folded, with respect to the main panels, inwardly around their pre-marked fold line by which they are connected. at the main panel. On the other hand, as can be seen in FIG. 3, the connecting lugs then naturally have, at the level of the intermediate fold line 84, an outwardly facing concavity. Before the folding and winding operation described above to form the wedging member, it is possible to redeploy the end bands by restoring the link tabs flat, or almost flat, as shown in FIG. Figure 3. It will be noted that the end strip 60 also has an assembly flap 18a, which may be constituted by the extension of the assembly flap 18, which is integral with an end end panel 61, and 15 which is intended to be folded down and assembled, for example by gluing, against the other extreme end panel 64 to give the end strip a closed contour substantially identical to the closed contour determined by the main panels. It can be seen that each end panel of the end strip is then arranged in the same plane as the corresponding main panel of the blocking member. From the intermediate step illustrated in FIG. 3, the formation of the package is continued by forming the outer envelope by successive folds of the blank around the fold lines 34, 130, 131, 132, 133 in such a manner that, once the distal outermost panel 124 folded with its inner face bearing against an outer face of the connecting panel 16, the four outer panels form, around the wedging element 12, the outer envelope also having a closed contour. The result of this assembly is illustrated in FIG. 4. There is then a package consisting of an outer shell and an internal clamping element whose main panels are arranged substantially parallel to the outer panels. Note that in this embodiment, the connecting panel 16 has a transverse width that is substantially equal to the transverse width of the outer panels minus the transverse deviation value "e". This offset is combined with the role of the transverse extensions 51, 52, 53, 54, 55, which form 5 as many support lugs which extend in one or more transverse directions and which are each in contact with an inner face of an outer panel of the outer casing for holding at least one of the main panels of the wedge member spaced apart from said external panel of the outer casing. Thus, the main envelope of the wedging element 10 is firmly held away from the external panels of the outer envelope, preferably in the two transverse directions perpendicular to the longitudinal direction. The difference value "e" determines the distance between the respective panels vis-à-vis the outer envelope and the cushioning envelope.
[0013] The end strip 60 and the connecting tabs 80 form, at a longitudinal end of the wedging member, an end wedging device for longitudinally wedging a product within the wedging member. The end wedging device which has just been described is a first possible embodiment. Others will be described later. FIGS. 5A, 5B, 5C show diagrammatic sectional views which illustrate different positions of this first embodiment of an end stubbing device. Due to the absence of a pre-marked transverse fold line in the transition zone between the end panel and the end portion 80b of the corresponding connecting lugs 80, this transition zone thereby forming a flexion zone this first embodiment of an endstop device may be described as a bi-articulated device since the connecting lug 80 has only two net joints, namely the intermediate transverse fold line 84 and the Pre-marked bending line connecting to the corresponding main panel.
[0014] In FIG. 5A, the end bi-wedge-shaped wedging device is illustrated in a longitudinally extended outward position. In this position, the connecting lugs 80 are unfolded in the sense that the two parts of the connecting lugs form, between them, an angle greater than 900.
[0015] In Fig. 5C, the bi-articulated end wedging device is illustrated in an inwardly close longitudinal position. In this position, the two parts of the connecting lugs 80 are folded over one another in the sense that they form, between them, an angle less than 90 °. As illustrated, tabs 80 are directed longitudinally inwardly to form a harpoon directed longitudinally inward of the space defined by the envelope formed by the main panels carrying them. The bi-articulated end wedging device can be reversibly moved between these two distinct stable longitudinal positions, on either side of an unstable position, illustrated in FIG. 5B, in which the main parts 80a connecting lugs 80 extend in a transverse plane perpendicular to the longitudinal direction. Due to the absence of a pre-marked transverse fold line between the end panel and the end portion 80b of the corresponding connecting lugs 20, the bi-articulated end clamping device is resiliently biased toward one end. either of these two longitudinal positions are stable under the effect of a restoring force which is due in particular to the elastic deformation of the flexion zone at the transition between the end panel and the end portion of the binding paste. The same biasing force causes the position shown in Figure 5B to be an unstable position. It should be noted that, in an endstop device according to the invention, the closed nature of the contour formed by the end strip 60 contributes to the fact that the forces generated at the level of two legs carried by opposite main panels tend to cancel.
[0016] Moreover, in the particular case of a bi-articulated end wedging device, the closed nature of the contour formed by the end strip 60 contributes to the fact that the end panels can not move 3033772 24 in the transverse direction, and the end strip 60 forms a rigid base for taking up the bending stresses generated in the transition zone between the end panel and the end portion 80b of the corresponding connecting tabs, thereby permitting at this transition zone 5 to generate a relatively large restoring force. Preferably, for an endstop device according to the invention, the length "la" of the main portion 80a of a connecting lug 80, defined as being the shortest distance between the intermediate fold line 84 and the pre-marked transverse fold line 41, 42, 43, 44 by which it is attached to the corresponding main panel, is less than half of the maximum dimension "T" of the internal space of the wedging element according to a cross direction perpendicular to the corresponding main panel. This characteristic is notably visible in FIG. 5B, in which it can be seen that the main portions 80a of the two opposite connecting lugs 80, that is to say connected to two non-adjacent panels of the envelope, can not come in abutment against each other during the tilting of the end strip 60 between its extended and close positions. In the case of a four-panel main envelope, the maximum dimension "T" of the inner space of the wedging element, in a transverse direction perpendicular to the corresponding main panel, is generally equal to the distance between the two longitudinal sides of a main panel adjacent to the panel considered. In the same way, the separating blanks 82 between two adjacent connecting tabs 80 are preferably arranged, as in the illustrated example, in the form of an openwork, that is, in the form of a cut that is not a simple cut line. The geometry of this openwork is preferably chosen so that when the main portions 80a of two adjacent connecting lugs, not being linked to one main panel but being connected to two adjacent main panels, are folded back to 900 towards the interior space, as shown in FIG. 5B, the main portions 80a of the adjacent connecting lugs 3033772 have no overlap, particularly in view in the longitudinal direction. This prevents two adjacent tabs abut against each other during the tilting of the end strip between its extended and close positions.
[0017] In the close position illustrated in FIG. 5C, the intermediate fold line 84 of the connecting tabs forms a projecting edge of the folded connecting tab 80, this projecting edge being able to bear against a product contained in the packaging for ensure rigging. In addition, it will be advantageously provided that the connecting lugs 10 each have a main portion 80a whose geometry allows it to be received, folded at 900 to the inner space relative to the corresponding main panel, without contacting the adjacent main panels. On the other hand, the length of the end portion 80b of a connecting lug may be defined as being the shortest distance "lb" between the intermediate fold line 84 and a transverse dividing line between this end portion. 80b and the corresponding end panel. In the particular case of a bi-articulated end wedging device, this dividing line is not marked. It is therefore a theoretical line. It can be defined as the last theoretical line, starting from the corresponding longitudinal end of the wedging element, for which there is continuity of material of the end strip over the entire transverse width of the corresponding end panel. . In other words, this theoretical line may be the last theoretical line for which neither of the separating blanks 82 is intercepted on either side of the link tab considered. In the exemplary embodiment illustrated, these two definitions correspond to the virtual transversal line LP1 along which the longitudinal vertices 82b of the cuts 82, on the side of the end panels 61, 62, 63, 64, 30 are aligned. Preferably, in the particular case of a bi-articulated end wedging device, the length "la" of the main portion 80a of a connecting leg 80 is less than the length "lb" of the portion end 80b of the same link leg. In this way, it tends to be avoided that, during the tilting of the endstop device between these two stable positions, the bending zone of the end portion of the connecting tab 5 undergoes irreversible damage. Thus, this bending zone remains essentially in its elastic deformation range and therefore retains sufficient elasticity to maintain the endstop device in one or other of its stable positions.
[0018] In Figure 6, there is illustrated an alternative embodiment which differs from the first embodiment essentially in that it is provided with end stopping devices which are not bi-articulated as in the first embodiment, but which are tri-articulated devices. A view of the packaging being assembled from the blank of FIG. 6 is shown in FIG. 7. The elements common to the two embodiments are designated by the same references and are not described in such a way. more detailed. Note that, in this embodiment, the closed contour formed by the main panels 21, 22, 23, 24 of the main envelope 20, the closed contour formed by the outer panels 121, 122, 123, 124 of the outer envelope, and the closed contour formed by the end panels of the end bands 60, 60 'of the end setting devices are all three rectangular because of the different width of the panels considered in the same envelope or in the same band, with alternation, whose succession of panels, a narrow panel and a wide panel. In this embodiment, the upper tri-articulated end wedging device of the lower tri-articulated end timing device will be distinguished, recalling that the notions of upper and lower are only used with reference to the representation of Figure 6, without affecting the orientation of the blank or the packaging in space. The connecting lug 80 is smaller than the length "1b" of the end portion 80b of the same connecting lug. In this way, it tends to be avoided that, during the tilting of the endstop device between these two stable positions, the bending zone of the end portion of the connecting tab 5 undergoes irreversible damage. Thus, this bending zone remains essentially in its elastic deformation range and therefore retains sufficient elasticity to maintain the endstop device in one or other of its stable positions.
[0019] In Figure 6, there is illustrated an alternative embodiment which differs from the first embodiment essentially in that it is provided with end stopping devices which are not bi-articulated as in the first embodiment, but which are tri-articulated devices. A view of the packaging being assembled from the blank of FIG. 6 is shown in FIG. 7. The elements common to the two embodiments are designated by the same references and are not described in such a way. more detailed. Note that, in this embodiment, the closed contour formed by the main panels 21, 22, 23, 24 of the main envelope 20, the closed contour formed by the outer panels 121, 122, 123, 124 of the outer envelope, and the closed contour formed by the end panels of the end bands 60, 60 'of the end setting devices are all three rectangular because of the different width of the panels considered in the same envelope or in the same band, with alternation, whose succession of panels, a narrow panel and a wide panel. In this embodiment, the upper tri-articulated end wedging device of the lower tri-articulated end timing device will be distinguished, recalling that the notions of upper and lower are only used with reference to the representation of Figure 6, without affecting the orientation of the blank or the packaging in space.
[0020] The upper end strip 60 thus comprises four end panels 61, 62, 63, 64, intended to form, after folding the end panels around their respective fold lines 71, 72, 73, an outline closed when a flap 18a, secured to an end end panel 61, is assembled, for example by gluing, to an end end panel 64. Each end panel is connected to a corresponding main panel by a tab linkage 80. Each connecting lug 80 has an intermediate transverse folding line 84, which delimits a main portion 80a and an end portion 80b of the connecting lug 80, respectively attached to the main panel and to the panel. corresponding end. As in the first embodiment, the main portion 80a of the connecting lug is attached to the main panel by a pre-marked transverse fold line which preferably coincides with a longitudinal end transverse edge of the main panel. Preferably, as in the previous embodiment, for all the tie tabs 80 of the upper end wedging device, the pre-marked transverse fold lines of the main portion 80a with the corresponding main panel are all aligned according to a transverse line 83 which, in this example, coincides with the transverse longitudinal end edge 41, 42, 43, 44 of the corresponding main panel of the wedging element 12. In contrast, contrary to what has been seen for the first embodiment, the end portion 80b of the link tab 80 is attached to the corresponding end panel by a pre-marked transverse fold line 85. Thus, unlike the first embodiment, the end portion 80b of the connecting lug is connected to the end panel of the corresponding end strip by a net hinge, which can be characterized in particular by a fall brutal mechanical characteristics, in particular flexural strength, of the material.
[0021] The pre-marked transverse fold line 85 can thus be considered as a demarcation line between the end panel and the corresponding connecting lug 80. Preferably, for all the connecting lugs 80 of the same tri-articulated end wedging device, the pre-marked transversal fold lines 85 of attachment of the connecting lug to the corresponding end panel are aligned according to a transverse line. The connecting lugs 80 are delimited between them by cutouts 82, which, in this embodiment, are formed by perforations and not by simple cutting lines. In the example illustrated, the longitudinal vertices 82b of the cutouts 82, on the side of the end panels of the end strip 60, are aligned on the pre-marked transverse fold line 85 for attaching the connecting lug 80 to the panel. corresponding end.
[0022] The connecting tabs 80 of the upper end timing device are not all identical. Those associated with wide panels 22, 24, 62, 64 have a geometry similar to that described above, with lateral sides, defined by the cutouts 82, which each form a half rhombus. For these tabs associated with the wide panels, the fold line 84 extends between the transverse vertices of these half-lozenges. The connecting tabs associated with narrow panels 21, 23, 61, 63 each have a central portion with longitudinal parallel edges and, on either side of the central portion, end portions with flared edges providing the connection respectively to the corresponding main panel and end panel. These connecting lugs therefore have a general hourglass shape. The transverse fold line 84 of each tab 80 extends across the central portion. Thus, in the example shown, a cutout 82 arranged between a connecting lug associated with a wide panel and a connecting lug 30 associated with a narrow panel has a diamond geometry truncated transversely by a longitudinal flattened on the side of the lug. link associated with a narrow panel.
[0023] Preferably, the transverse intermediate fold lines 84 of the connecting tabs 80 of the upper end wedging device are aligned along a transverse line. In this embodiment, each connecting lug 80 is therefore associated with three pre-marked fold lines 83, 84, 85, which justify the designation of a tri-articulated end wedging device. Advantageously, the three pre-marked fold lines 83, 84, 85 are parallel to each other. The transverse line 84 of a connecting lug may be equidistant from the other two pre-marked fold lines 83, 85 by which a connecting lug 80 is respectively connected to the corresponding main and end panels. Preferably, the length of the main portion 80a, respectively of the end portion 80b, of the connecting tabs defined as the shortest distance between the intermediate fold line 84 and the pre-marked transverse fold line 83 The main panel, respectively, to the end panel, are both less than half the maximum dimension of the inner space of the wedging element in a transverse direction perpendicular to the corresponding main panel. Note however that, in the illustrated example, this condition is not fulfilled for the connecting tabs 82 associated with the wide panels, for the upper end wedging device which has just been described, because the dimension The maximum internal space of the wedging element is then determined by the transverse width of the narrow panels 21, 23 which, in this example, does not make it possible to carry out the condition. As with the embodiment described above, the tri-articulated end wedging device can be reversibly moved between at least one outwardly extended longitudinal position, as illustrated, for example, in FIG. 8A, and an inward longitudinal position, shown in Figure 8B. However, in most cases, only the extended outward longitudinal position is a stable position.
[0024] Preferably, in the close longitudinal position, it will be advantageously provided that a transverse end edge 69 of the wedging device (here formed by the free transverse edge of the end strip 60), is received inside the the space delimited by the outer envelope.
[0025] Advantageously, it is received at or longitudinally inwardly with respect to a longitudinal end edge of the package which is defined by the transverse end edges of the outer panels of the outer shell. In this way, a closure flap 125 and / or possibly complementary shutter flaps 128, articulated on these transverse end edges of the outer panels, may, in the closed position folded back to 900, block the wedging device of FIG. end in the interior space bounded by the outer shell, in a close inward position as shown in Figure 8B. In this position, the connecting tabs 80 are folded over and extend substantially across the interior space. In particular, the intermediate fold line 84 of the connecting lugs forms a projecting edge of the folded connecting lug 80, this projecting edge being able to bear against a product contained in the packaging to ensure the wedging.
[0026] In contrast, in the extended position of the endstop, the transverse end edge of the endstop protrudes out of the inner space defined by the outer shell. As seen in FIG. 8A, the transverse end edge of the end stubbing device protrudes longitudinally outwardly with respect to the longitudinal end edge of the package defined by the transverse end edges of the external panels of the outer shell. In the context of a tri-articulated end wedging device, the length "1b" of the end portion 80b of a connecting leg 80 may be defined as being the shortest distance between the line. intermediate bend 84 and the pre-marked transverse fold line 85 by which it is attached to the end panel. This length "lb" may be chosen to be greater than the length "la" of the main portion 80a of the link tab 80, which is defined, as before, as being the shortest distance between the intermediate folding line 84 and the pre-marked transversal folding line 83 of 5 main panel attachment. For example, the length "la" of the main portion 80a of a link tab 80 may be 5 to 20% less than the length "1b" of the end portion 80b of said link tab. With such a feature, which is illustrated in the figures, it will be seen that, in the close position of the endstop, the connecting lugs 80 are across the inner space but slightly turned longitudinally inwardly. of this space. The endstop device which is illustrated in Figure 6 on the lower side of the wedging element 12 is also a tri-articulated device. It is essentially distinguished from the upper device by the fact that the lower end strip 60 'is connected to the main envelope only by connecting lugs 80' associated only with two of the four main panels 61 ', 62' 63 ', 64', in this case two nonadjacent main panels, in this case opposite, namely the main wide panels 22, 24. On the other hand, the other two panels, in this case the narrow panels 21, 23 are not bonded to the corresponding end panel of the lower end strip 60 '. Thus, there is, between the narrow main panels 21, 23 and the corresponding end panels, a cutout 82 'which is interposed between the connecting tabs 80' corresponding to the wide main panels 22, 25 24. Moreover, if considering only the connection of one of the wide panels, for example the main panel 22, with the corresponding end panel 62 'of the end strip 60', it can be seen that they are in fact two connecting tabs 80 that are planned. These two connecting lugs 80 'longitudinal are offset transversely relative to each other on either side of a central separation window 87'. Each connecting lug 80 'is respectively attached to the corresponding main panel and to the corresponding end panel by fold lines 83', 85 ', pre-marked, and each connecting lug has a connecting line. transverse intermediate fold 84 'delimiting a main portion 80'a and an end portion 80'b of the connecting lug 80'.
[0027] It is noted that the window 87 'does not extend over the entire distance between the fold lines 83', 85 'through which the connecting lugs are respectively attached to the corresponding main panel and the corresponding end panel. In this way, there remain longitudinally on both sides of the separation window 87 ', transverse strips 89' which extend transversely between two connecting tabs 80 'associated with the same main panel. The transverse strips 89 'are therefore respectively connected to the corresponding main panel and the corresponding end panel by the pre-marked fold lines 83', 85 '.
[0028] The same configuration is found at the main panel 24, also connected to the corresponding end panel by two connecting lugs 80 'arranged in parallel on either side of a central separation window 87'. In a variant, not shown, it is possible to provide for the production of a package whose wedging element comprises only three main panels successively articulated to one another and / or whose main envelope comprises only three panels. external, thereby defining a wedging envelope and / or an outer envelope which defines a triangular closed contour in a transverse plane perpendicular to the longitudinal direction. It is thus possible to provide a package comprising two peripheral envelopes, namely an outer envelope and a main envelope of a wedging element, which would both have only three main panels, thus defining envelopes having nested triangular sections. To facilitate the realization of such a package with three main and / or external panels, it may be useful to provide on one of the main and / or external panels, and thus on the end panel (s) of the This panel is a temporary longitudinal fold line used to permit flat gluing of an assembly flap bound to an end peripheral panel on an opposite end peripheral panel. More generally, packaging or packaging elements whose peripheral envelope (s) have 5, 6, 7, 8 or more peripheral panels may also be provided. In FIG. 9, there is illustrated an embodiment of a single blank for the production of packaging comprising an outer envelope formed of external panels 121, 122, 123, 124 and a wedging element 12 made up of main panels. , 22, 23, 24. The number of external panels is equal to the number of main panels. However, as can be seen in Figure 10 schematically illustrating a section, the assembled package obtained from this blank, and contrary to the embodiments described above, the outer panels are not parallel to the main panels. In this embodiment, the transverse width of the connecting panel 16 is chosen so as to create an angular offset, in a transverse plane perpendicular to the longitudinal direction, between the external panels of the outer envelope and the main panels of the main envelope of the wedging element. It will be further noted that this embodiment has only one end wedging device according to the invention, on the upper side, comprising an end strip 60 connected to the main panels of the wedging element 12 by Link tabs 80. This is a bi-articulated end wedging device in which the end portion 80b of at least two link tabs 80 is attached to the headband. corresponding end 60 by a bending zone devoid of pre-marked fold transverse line. This endstop device is arranged at a longitudinal end of the wedging element 12, in this case the upper longitudinal end, the other lower longitudinal end, being devoid of it. In the illustrated examples, the outer shell has as many outer panels as the wedging element has major panels. However, this feature is not mandatory and may be provided packages with more external panels than main panels, or conversely packs with fewer external panels than the main panels of the wedging element.
[0029] The endstop device according to the invention is particularly advantageous for several reasons. On the one hand, the end wedging device according to the invention is obtained from the same single blank as the package. Furthermore, the realization of the endstop device according to the invention is relatively simple, including at the time of assembly, because it does not require particularly complicated cuts or complex assembly operations. In particular, all the fold lines are either longitudinal or transverse, without the need for folding around the oblique fold lines.
[0030] The fact that the end wedging device is made on the part of the wedge element blank has various advantages. First, the wedging device is thus likely to be concealed inside the outer casing. Then, it can be seen that, in the blank 10, at least the end stopping device does not protrude longitudinally from the level at which elements such as the closure flap 125 and / or the complementary closure flaps 128 extend. It will therefore be understood that the wedging device according to the invention is thus integrated into the blank 10 without increasing the longitudinal dimension of the blank 10. On the contrary, since the blank 10 is pre-cut in a strip of materials having an given longitudinal dimension, which is determined in the examples illustrated by the length of the outer panels to which is added the length of the closure flaps 125 and the locking flaps 126, the end rigging device (s) are integrated in the element without increasing the width necessary for the belt. This reduces the material falls that are generated when pre-cutting the blank 10.
[0031] When the endstop is a bi-articulated or tri-articulated device, it has an outwardly extended position which is stable. This stable character is particularly useful at the time of introduction of the product of the package. Before introduction, it is in a stable extended position in which it does not interfere with the introduction of the product into the package. After the introduction of the product, the endstop is brought into its close position in which it is able to block the product. This operation which brings the end stopping device 10 into its close position can be done by simply pressing on the end strip in the longitudinal direction. This operation can be done with an automated push tool, having only one axis of displacement. The automated push tool can be the same tool that ensures the introduction of the product into the package.
[0032] In the context of a bi-articulated end wedging device, there is no need to provide either a particular operation or additional holding means to hold the endstop in its close position. . This maintenance results from the bistable character as described above. The maintenance obtained by the return force of the connecting lugs 20 is sufficient to wedge a product in the longitudinal direction. In the context of a tri-articulated end wedging device, the holding of the end wedging device in its close position can be easily obtained simply by the presence of a closing flap 125. The packages are generally filled. such a flap so that there is no additional means. Note that the passage of the end wedging device from one to the other of its stable positions is reversible, allowing several manipulations. 30

权利要求:
Claims (29)
[0001]
CLAIMS1 - Packaging obtained from a single blank, pre-cut and folded from a sheet of material, of the type comprising: - an outer envelope (14) formed of at least three externally articulated panels (121-124) successively to each other around longitudinal fold lines (131-133) which extend parallel to each other in the longitudinal direction, the fold lines defining longitudinal sides of the outer panels, the envelope outer being closed on itself to define a closed contour around an interior space in a transverse plane perpendicular to the longitudinal direction; - a wedging element (12) comprising a main envelope comprising at least three main panels (21-24) articulated successively to one another around longitudinal fold lines (31-33) which extend parallel to each other; to one another in a longitudinal direction, the fold lines defining longitudinal sides of the panels, the main envelope being closed on itself to define a closed contour around an interior space of the wedging element in a transverse plane perpendicular to the longitudinal direction; characterized in that the wedging element comprises, at at least one longitudinal end, an end wedging device (60, 80, 60 ', 80') comprising: - an end band (60, 60 ') having as many end panels (61-64, 61'-64 ') as the number of main panels of the wedging element successively articulated to one another around fold lines (71-73) arranged in alignment with the fold lines of the main panels, the end band being closed on itself to define a closed contour around an interior space of the wedging member in a transverse plane perpendicular to the longitudinal direction ; for at least two distinct main panels, at least one longitudinal connecting lug (80, 80 ') which connects the main panel to a corresponding end panel, and the connecting lug of a main panel being distinct from the one or more connecting tabs of the other main panels, the connecting tabs being separated from each other transversely by a separating blank (82, 82 ') in the sheet of material, and in that each link tab (80, 80 ') has an intermediate transverse fold line (84, 84') which delimits a main part (80a, 80'a) and an end part (80b, 80'b) of the connecting tab, respectively attached to the corresponding main panel and end panel, to allow a closer of the end strip of the main casing by folding the two parts of the connecting tab about themselves around the intermediate fold line.
[0002]
2. Packaging according to claim 1, characterized in that the end wedging device (60, 80, 60 ', 80') can be reversibly moved between at least one extended outward longitudinal position and an inward longitudinal position in which a transverse end edge of the endstop is received within the interior space delimited by the outer shell, recessed longitudinally inwardly relative to at a longitudinal end edge of the package defined by transverse end edges of the outer panels of the outer shell.
[0003]
3. Packaging according to claim 2, characterized in that in the extended position of the end wedging device (60, 80, 60 ', 80'), the transverse end edge of the end wedging device exceeds The outside of the inner space bounded by the outer envelope, protruding longitudinally outwardly with respect to the longitudinal end edge of the package defined by the transverse end edges of the outer panels of the casing external.
[0004]
4. Packaging according to any one of the preceding claims, the outer casing comprises, at least at the longitudinal end provided with the end wedging device, a closure device comprising at least one closure flap (125) which is articulated on a transverse edge of an outer panel and which cooperates, in a closed position of the package, with the end wedging device (60, 80, 60 ', 80') to maintain it in his close position.
[0005]
Pack according to any one of the preceding claims, characterized in that the end wedging device (60, 80, 60 ', 80') is a tri-articulated device in which the main part (80a, 80a) ') and the end portion (80b, 80b') of the connecting tabs are respectively hinged respectively to the main panel and the corresponding end panel by pre-marked respective transverse folding lines (83, 85, 83 ', 85'), and in that the length (la) of the main part, respectively (1b) of the end portion, of the connecting tabs, defined as being the shortest distance between the intermediate fold line (84, 84 ') and the pre-marked transversal fold line (83, 83') of attachment to the main panel, respectively (85, 85 ') to the end panel, are both less than half of the maximum dimension (T) of the internal space of the wedging element according to a cross direction perpendicular to the corresponding main panel.
[0006]
Packaging according to any one of the preceding claims, characterized in that the end wedging device (60, 80, 60 ', 80') is a tri-articulated device, and in that the length (the ) of the main part of a connecting lug, defined as the shortest distance between the intermediate fold line (84, 84 ') and the pre-marked transversal fold line (83, 83') of the panel main, 25 is less than the length (lb) of the end portion of said connecting lug, defined as being the shortest distance between the intermediate fold line (84, 84 ') and the transverse fold line pre- marked (85, 85 ') of attachment to the end panel.
[0007]
7. Packaging according to any one of the preceding claims, characterized in that the length (la) of the main part (80a, 80a ') of a connecting lug (80, 80') is less than 5 to 20 percent at the end portion (1b) of the end portion (80b, 80b ') of said link leg.
[0008]
Pack according to any one of claims 1 to 4, characterized in that the end wedging device (80, 60) is a bi-articulated device, in which the main part (80a) of the connecting lugs. (80) is attached to the corresponding main panel by a pre-marked transverse fold line (41-44), while the end portion (80b) of the link tabs (80) is attached to the corresponding end panel (10). by a bending zone devoid of pre-marked fold transverse line.
[0009]
Pack according to one of the preceding claims, characterized in that, between two adjacent connecting tabs (80) corresponding to two adjacent main panels, the separating cutout (82) between two tabs is arranged in the form of In such a manner, each folded 90 degrees towards the interior space with respect to the main panel to which the connecting lug is attached, the main portions (80a) of the two adjacent lugs have no overlap. 20
[0010]
10. Packaging according to any one of the preceding claims, characterized in that the connecting tabs each have a main portion (80a) whose geometry allows it to be received, folded at 900 to the inner space relative to the panel The main link to which the link tab is attached, without contacting the main panels adjacent to the main panel to which the connecting tab is attached.
[0011]
11. Package according to any one of the preceding claims, characterized in that it comprises two end clamping devices (60, 80, 60 ', 80'), one of which is attached to one of the two longitudinal ends of its securing element (12), and the other of which is attached to the other of the two longitudinal ends of its wedging element (12).
[0012]
12. Package according to one of claims 5 or 6, characterized in that it comprises a tri-articulated end wedging device (60, 80, 60 ', 3033772 40 80') at each of the two longitudinal ends of the wedging element (12), and in that the outer envelope comprises, at each longitudinal end, a closure device, each of which comprises at least one closure flap (125) which is articulated on a transverse edge of an outer panel and cooperating, in a closed position of the package, respectively with the corresponding tri-articulated end wedging device to maintain it in its close position.
[0013]
13. Packaging according to one of claims 1 to 11, characterized in that it comprises, at one longitudinal end of its wedging element 10 (12), a tri-articulated wedging device and at the other end of its wedging element (12), a bi-articulated wedging device.
[0014]
Pack according to one of the preceding claims, characterized in that the wedging element (12) is connected to the outer casing (14) by a connecting panel (16) which is articulated to an outer panel ( 121) of the outer shell along a longitudinal side thereof, and which is hinged to a main panel (24) of the wedging element (12) along a longitudinal side thereof. .
[0015]
15. Packaging according to claim 14, characterized in that the connecting panel (16) connecting the outer casing (14) and the wedging element (12) has a transverse dimension which generates an angular offset between the main panels. of the wedging element and the outer panels of the outer shell.
[0016]
Packaging according to any one of the preceding claims, characterized in that the wedging element (12) comprises bearing lugs (51-55) which extend in one or more transverse directions and which are each in contact with an inner face of an outer panel (121-124) of the outer envelope (14) to hold at least one of the main panels (21-24) of the wedging element (12) spaced from said outer panel the outer envelope. 30
[0017]
Packaging according to any one of the preceding claims, characterized in that it is made in one piece from a single blank 3033772 41 of cardboard whose grammage is greater than or equal to 180 g / m2, and lower or equal to 2000 g / m2.
[0018]
18. Pre-cut blank formed in one piece from a sheet of material, of the type in which: at least three external panels (121-124) are successively arranged one beside the other, and are attached by longitudinal fold lines (131-133) which extend parallel to each other in the longitudinal direction, the fold lines defining longitudinal sides of the outer panels; - a wedging element (12) comprising at least three main panels (21-24) successively attached to one another by longitudinal fold lines (31-33) which extend parallel to one another; another in a longitudinal direction, the fold lines defining longitudinal sides of the main panels; characterized in that the wedging element (12) comprises, at at least one longitudinal end, an end wedging device (60, 80, 60 ', 80') comprising: - an end band (60, 60 ') comprising as many end panels (61-64) as the number of main panels of the wedging element, successively attached to one another around fold lines (71-73) arranged in the alignment of the fold lines of the main panels; for at least two distinct main panels, at least one longitudinal connecting lug (80, 80 ') which connects said main panel to a corresponding end panel, and the connecting lug of a main panel being distinct from the main panel; or the connecting lugs of the other main panels, the connecting lugs being separated from one another transversely by a separating cutout (82, 82 ') in the sheet of material, and in that each connecting lug (80) has an intermediate transverse folding line (84, 84 ') defining a main portion 3033772 (80a, 80'a) and an end portion (80b, 80'b) of the connecting leg , respectively attached to the corresponding main panel and end panel, to allow a closer of the end strip of the main panels by folding the two parts of the connecting lug on themselves around the intermediate fold line.
[0019]
19. Blank precut according to claim 18, characterized in that at least one of the outer panels (121-124) comprises, at least at the longitudinal end corresponding to the end clamping device, a closure device comprising at least minus a closure flap (125) which is attached to a transverse edge of an outer panel.
[0020]
20. Pre-cut blank according to one of claims 18 or 19, characterized in that the end clamping device is a tri-articulated device in which the main part (80a, 80'a) and the end part ( 80b, 80 ') of the connecting tabs (80, 80') are both attached to the main panel (21-24) and the corresponding end panel (61-64) by a pre-marked transverse fold line (83, 83 ', 85, 85'), and in that the length (la) of the main part, respectively (lb) of the end portion, of the connecting lugs, defined as the shortest distance between the intermediate folding line (84, 84 ') and the attached pre-marked transversal folding line (83, 83') at the main end panel (85, 85 '), respectively, are both less than half of the cross-section of a main panel adjacent to the main panel to which the connecting lug is attached, defined as being the distance between the two longitudinal sides of the adjacent panel.
[0021]
21. Pre-cut blank according to one of claims 18 to 20, characterized in that the end clamping device is a tri-articulated device, and in that the length (la) of the main part (80a, 80 ') a) a connecting lug, defined as being the shortest distance between the intermediate folding line (84, 84 ') and the pre-marked transversal folding line (83, 83') of attachment to the main panel, is less than the length (lb) of the end portion (80b, 80'b) of said link tab, defined as the shortest distance between the intermediate fold line (84, 84 ') and the pre-marked transverse fold line (85, 85 ') of attachment to the end panel. 5
[0022]
22. Blank precut according to claim 21, characterized in that the length (la) of the main portion (80a, 80'a) of a connecting lug is 5 to 20 percent less than the length (lb) of the end portion (80b, 80'b) of said connecting lug.
[0023]
23. Pre-cut blank according to one of claims 18 to 20, characterized in that the end wedging device is a bi-articulated device, in which the main part (80a) of the connecting lugs is attached to the main panel. (21-24) corresponding by a pre-marked transverse folding line (41-44), while the end portion (80b) of the connecting lugs is attached to the corresponding end panel (61-64) by 15 a bending zone devoid of pre-marked fold transverse line.
[0024]
24. blank precut according to one of claims 18 to 23, characterized in that it comprises an end wedging device (60, 80, 60 ', 80') at each of its two longitudinal ends of the element wedge 20 (12).
[0025]
25. Pre-cut blank according to one of claims 18 to 24, characterized in that it comprises a tri-articulated end wedging device (60, 80, 60 ', 80') at each of the two longitudinal ends of the wedging element (12), and in that, at each longitudinal end, at least one of the outer panels (121-124) comprises a closure device having at least one closure flap (125) which is attached at a transverse edge of an outer panel.
[0026]
26. Pre-cut blank according to one of claims 18 to 24, characterized in that it comprises, at one longitudinal end of its wedging element, a tri-articulated end wedging device and at the other end of its wedging element, a bi-articulated end wedging device. 3033772 44
[0027]
27. Pre-cut blank according to one of claims 18 to 26, characterized in that it comprises at least one support lug (51-55) which is delimited by a U-shaped cut made in a main panel (21-24 ) of the wedging element (12), the vertices of the legs of the U corresponding to a fold line (31-33), the U-shaped cutout delimiting a transverse extension for the adjacent main panel sharing the same longitudinal side.
[0028]
28. Pre-cut blank according to one of claims 18 to 27, characterized in that it comprises a connecting panel (16) which is attached by a folding line (130) to an outer panel (121) along a longitudinal side thereof, and which is attached to a main panel (24) along a longitudinal side (34) thereof.
[0029]
29. Pre-cut blank according to one of claims 18 to 28, characterized in that it is made in one piece from a single blank of cardboard 15 whose grammage is greater or equal to 180 g / m2, and lower or equal to 2000 g / m2.

类似技术:

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同族专利:

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公开号 | 公开日

---

EP3070016A1|2016-09-21|

---

EP3070016B1|2018-01-24|

---

ES2663909T3|2018-04-17|

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FR3033772B1|2018-01-19|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

US975121A|1910-01-27|1910-11-08|James H Carter|Box.|

---

GB365078A|1930-10-14|1932-01-14|Britannia Folding Box Company|Improvements in or relating to cartons for packing fragile articles|

---

US2828902A|1953-11-12|1958-04-01|Diamond Match Co|Carton with integral tubular liner|

---

US3134486A|1962-08-13|1964-05-26|St Regis Paper Co|Cartons for electrical bulbs and the like|

---

US3750934A|1972-01-18|1973-08-07|Garber A Co|Container with axial interlocking means|

---

DE202011106417U1|2011-10-07|2011-11-21|Smurfit Kappa Gmbh|Packaging with integrated protective pad|

---

USD904191S1|2018-07-17|2020-12-08|International Paper Company|Shipper insert|

---

US10913567B2|2018-07-17|2021-02-09|International Paper Company|Shipping insert and blank for forming same|

---

USD885889S1|2018-07-17|2020-06-02|International Paper Company|Blank for shipper insert|

---

CN109229706A|2018-07-30|2019-01-18|天津商业大学|It is a kind of with it is positive and negative press structure liner cosmetic packaging box|

法律状态:
2016-03-25| PLFP| Fee payment|Year of fee payment: 2 |

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2016-09-23| PLSC| Publication of the preliminary search report|Effective date: 20160923 |

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2017-03-23| PLFP| Fee payment|Year of fee payment: 3 |

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2018-03-22| PLFP| Fee payment|Year of fee payment: 4 |

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2019-11-29| ST| Notification of lapse|Effective date: 20191106 |

优先权:

---

申请号 | 申请日 | 专利标题

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FR1552314|2015-03-20|

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FR1552314A|FR3033772B1|2015-03-20|2015-03-20|PACKAGING AND FLAN COMPRISING AN IMPROVED SETTING MEMBER|FR1552314A| FR3033772B1|2015-03-20|2015-03-20|PACKAGING AND FLAN COMPRISING AN IMPROVED SETTING MEMBER|

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ES16160757.7T| ES2663909T3|2015-03-20|2016-03-16|Packaging and blank comprising an element of improved footwear|

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EP16160757.7A| EP3070016B1|2015-03-20|2016-03-16|Packaging and blank having an improved setting element|