FR2882728A1 - Product e.g. cosmetic product, packing case, has one articulated panel comprising sheet provided on its inner side, where sheet comprises ferromagnetic compound to permit fixation of magnetic object e.g. magnet, on sheet - Google Patents

Abstract

The case has articulated panels (2, 3, 4, 5) defining a parallelepiped shaped tubular casing (E). The panel (5) has a sheet (36) provided on its inner side and comprising a ferromagnetic compound in a manner to permit the fixation of a magnetic object e.g. magnet, on the sheet. The sheet is formed by a steel strip with a thickness less than a few tens of millimeters. A closing panel (13) is articulated on the panel (4). Independent claims are also included for the following: (1) an assembly of two packing cases connected with each other by articulated panels (2) an assembly of two precut blanks for the manufacture of an assembly of two packing cases.

Description

2882728 1

  The present invention relates to the technical field of packaging and, more particularly, packaging cases which are intended to package, preferably but not exclusively, products of unitary nature, either by themselves or by a pre-conditioning which is imposed.

  The invention relates, more specifically, packaging cases that are made from a blank of raw material, pre-cut and then mounted by folding to form the actual packaging.

  As a preferred application, the invention relates to packaging cases made from a carton blank, preferably compact, without this precision excluding corrugated cardboard or similar products, such as plastic sheets, laminated or not.

  In the technical field above, it is widely known to produce a packaging package from a blank of suitable material cut flat, then mounted to form a case in which the product or products must be packaged. As a rule, these are blanks of compact cardboard which are made to define, after assembly, a tubular casing constituting a casing body and having bottom and top closure systems. The design of these blanks can be ensured so that the case body of the tubular casing has a shape, most generally parallelepiped, without it being necessary to exclude the bodies of cases of different shapes, such as of pentagonal or hexagonal cross-section, even octagonal or triangular. Such cases are used to ensure the packaging of different types of products, such as, for example but not exclusively, cosmetics or even pharmaceuticals.

  In the context of the marketing of cosmetic products for example, the packaged product in the case may be accompanied by a promotional object, such as, for example, a magnetized object, also called magnet, and it is then necessary to ensure that the magnetic object and the packaged product in the case do not deteriorate during transport. In order to achieve this object, the invention relates to a packaging case, obtained from a pre-cut blank and assembled, by folding, to comprise: a tubular hull with articulated panels provided with two ends, of which at least a first end is open, E and at the first end of the casing, a closure panel, hinged to a panel of the casing, and at least one folding flap hinged to another panel of the casing . According to the invention, the packaging case is characterized in that one of the articulated panels of the tubular casing carries, on one of its faces, a sheet comprising a ferromagnetic compound.

  The implementation of this sheet, comprising a ferromagnetic compound, makes it possible to obtain an adhesion of the magnetized object to the ferromagnetic sheet or to the panel which carries it, so that the magnetized object is perfectly immobilized during the transport. and does not risk to hit the packaged product in the case, thus avoiding premature deterioration, either the packaged product or the magnetized object. Of course, it is also possible to condition only the magnetic object in the case according to the invention, the presence of the ferromagnetic sheet ensuring perfect immobilization of the magnetized object in the case. It should be noted that, in the context of joint packaging of a product and the magnetized object in the case according to the invention, the implementation of the ferromagnetic sheet makes it possible to immobilize the magnetized object having a cost implementation very much lower than that of another immobilizing solution which would consist in arranging, in the case body, two separate compartments, one for the magnetized object, the other for the packaged product. Similarly, the implementation of the ferromagnetic sheet offers a solution much less expensive than that which would attach the magnetic object by gluing inside the case. Indeed such a bond could risk damaging the magnetic product and requires, moreover, an expensive manual operation.

  As has been said previously, according to the invention, the ferromagnetic sheet is preferably adapted to allow the attachment of a magnetized object against the hinged panel which carries it. However, this is not the only possible use of the ferromagnetic sheet which could also be adapted to allow the recording of a magnetic message.

  According to the invention, the ferromagnetic sheet is, preferably but not exclusively, fixed to the inner face of a constituent panel of the case body.

  According to one embodiment of the invention, the hinged panel, provided with the ferromagnetic sheet, further comprises a backboard fixed to the hinged panel, so as to cover at least part and preferably all the ferromagnetic sheet. This advantageous characteristic of the invention makes it possible, on the one hand, to protect the ferromagnetic sheet in order to prevent it being pulled off during the filling of the case and, on the other hand, to conceal the ferromagnetic sheet with regard to a user the case, so as not to affect the overall appearance of the case.

  In the context of this embodiment and preferably but not strictly necessary, the ferromagnetic sheet and the back panel are fixed on the inner face of the hinged panel.

  Still in the context of this embodiment and according to a feature of the invention, the backboard is connected by a fold line to the corresponding hinged panel.

  According to another characteristic of the invention, each end of the tubular casing of the case is open and the case comprises, at each end of the casing, a closure panel and at least one closure flap.

  According to yet another feature of the invention, the packaging case comprises two closure flaps at each end of the tubular casing.

  According to a feature of the invention, each closure panel comprises, opposite the hinged panel which carries it, a locking flap.

  According to the invention, the packaging case is likely to have a tubular envelope of different shapes. However in a preferred but not strictly necessary embodiment, the tubular casing has a rectangular cross section defined by four hinged panels and the back panel is attached to a first hinged panel.

  The invention also relates to an assembly of two packaging cases, as described above, the cases being connected to each other at the level of two first articulated panels which each partially delimit the tubular casing of the corresponding case. and which are separated by a line of lower resistance.

  The invention also relates to a pre-cut blank for the production of a packaging case, as described above, comprising at least: a series of articulated panels arranged one after the other separated by fold lines parallel, and intended to form the tubular casing, a last articulated panel is extended by a separate connecting strip of the last panel articulated by a fold line and intended to be fixed in relation to a first hinged panel to ensure the formation of the tubular casing of the case, ^ two closure panels, each extending in the extension of an articulated panel and of which they are each separated by a fold line being located on either side 25 of the alignment of the hinged panels, and at least one folding flap extending in the extension of an articulated panel of the tubular casing from which it is separated by a Folding parallel to and substantially aligned with the fold line of the closure panel located on the same side of the hinged panel alignment as the foldable flap 2882728 According to one embodiment of the invention, this pre-cut blank is characterized in that it comprises a sheet of ferromagnetic material bonded to one of the hinged panels of the tubular casing.

  According to another embodiment of the invention, the pre-cut blank is characterized in that one of the articulated panels of the tubular casing comprises: E a counter panel fixed on one side of the articulated panel, É and a sheet, comprising a ferromagnetic compound, fixed either on the back panel or on the hinged panel, so as to be interposed between the hinged panel and against panel during the setting of the pre-cut blank volume.

  According to one characteristic of the invention, the pre-cut blank comprises, on either side of the alignment of the hinged panels, at least one folding flap extending in the extension of an articulated panel of the tubular casing. it is separated by a fold line parallel to and substantially aligned with the fold line of the closure panel located on the same side of the alignment of the hinged panels as said folding flap.

  According to yet another characteristic of the invention, the pre-cut blank comprises, on either side of the alignment of the hinged panels, at least two closure flaps.

  According to the invention the precut blank can be designed to allow the formation of cases whose tubular casing has different shapes in transverse cross section. However, according to a preferred but not strictly necessary embodiment, the precut blank according to the invention comprises four hinged panels intended to define a tubular envelope of rectangular cross section.

  According to another characteristic of the invention and in the context of the second embodiment of the pre-cut blank, the backboard is separated from the corresponding hinged panel by a fold line perpendicular to the fold lines separating the panels hinged together.

  According to yet another characteristic of the invention and still in the context of the second embodiment of the pre-cut blank, the backboard is separated from the corresponding hinged panel by a fold line parallel to the fold lines separating the hinged panels between them.

  The invention also relates to an assembly of two pre-cut blanks according to the invention for producing an assembly according to the invention of two cases, as mentioned above. According to the invention, this assembly of two pre-cut blanks is characterized in that the first hinged panel of a blank is separated from the first hinged panel of the other blank by a line of lower strength.

  Various other features of the invention emerge from the description below, made with reference to the drawings which illustrate non-limiting embodiments of a packaging case according to the invention.

  Fig. 1 is a perspective view, partially cut away, of a packaging case according to the invention.

  Fig. 2 is a flat view of a pre-cut blank to obtain the case, as shown in FIG. 1.

  Fig. 3 is a perspective, substantially similar to FIG. 1, showing another embodiment of a packaging case according to the invention.

  Fig. 4 is a plan view of a pre-cut blank to obtain a case, as illustrated in FIG. 3.

  Fig. 5 is a cross section along the plane V-V of FIG. 3.

  Fig. 6 is a plan view of an alternative embodiment of a pre-cut blank for obtaining the case, as illustrated in FIG. 3.

  Fig. 7 is a perspective, in plan view, of an assembly of two cases similar to the case, as illustrated in FIG. 3.

  2882728 7 Fig. 8 is a plan view of the assembly of two pre-cut blanks to obtain the assembly of cases, as illustrated in FIG. 7.

  Fig. 9 is a cross section of the case assembly illustrated in FIG. 7.

  A packaging case, according to the invention, as illustrated in a semi-formed state in FIG. 1, is obtained from a blank pre-cut flat, as shown in FIG. 2. Such a blank, designated as a whole by the reference 1, can be made from compact cardboard, corrugated cardboard or, alternatively, from appropriate plastic sheets, the nature of the constituent material of the blank not being a feature of the invention.

  The blank 1 comprises four hinged panels 2, 3, 4 and 5 which are intended to define a tubular casing E of generally parallelepipedal shape, as shown in FIG. 1. According to the illustrated example, the tubular casing E is open at its first end E1i and at its second end E2, although in FIG. 1 this second end appears closed by means of a closure system forming an integral part of the packaging case.

  This tubular envelope E is intended to constitute a case body, that is to say, within the meaning of the concept of packaging, a container. The invention could find an identical application with a tubular envelope E affecting a different shape and, for example, having a pentagonal, hexagonal or even octagonal or even triangular section. In such a case, the number of hinged panels is chosen corresponding to the number of sides of the section of the tubular envelope.

  Fig. 2 shows that the panels 2, 3, 4 and 5 extend one after the other, each being delimited with respect to the next by means of fold lines, respectively 6, 7 and 8 which are parallel between they are perpendicular to the alignment of the hinged panels 2, 3, 4 and 5. It should be noted that the fold lines appear in FIG. 2 dashed lines or dashed lines, while solid lines or continuous lines represent lines of cutouts. The same convention will be adopted for the other plan views of pre-cut blanks according to the invention.

  The last articulated panel 5 has, in addition, opposite the hinged panel 4, a connecting strip 9, separated from the panel 5 by a fold line 10 parallel to the lines 6 to 8. The connecting strip 9 is intended for be against fixed on the inner face of the first hinged panel 2 during the shaping of the case, as will appear later. This counter fixing of the connecting strip 9 can be carried out by any appropriate means, such as, for example but not exclusively, by gluing.

  Conventionally, the panel 4 is bordered, beyond folding lines 11 and 12 parallel to each other and perpendicular to the lines 7 and 8, by two closure panels, respectively top 13 and bottom 14. These closure panels 13 and 14 have in plan a shape corresponding to the section of the tubular casing E, is, in this case, rectangular.

  According to an essential characteristic of the invention, each closure panel 13, 14 is provided, beyond a folding line 15 or 16 substantially parallel to the fold lines 11 and 12, of a flap 17 or 18, says lock. Furthermore, the hinged panels 3 and 5, arranged on either side of the panel 4 are provided, each beyond a fold line 19 or 20, a bottom folding flap 21 or 22 s' extending in the same direction as the closure panel 14. It should be noted that the fold lines 19 and 20 are perpendicular, respectively, to the fold lines 6 and 7, as well as 8 and 10. Similarly, the hinged panels 3 and have, opposite the bottom closure flaps 21 and 22, high closure flaps 23 and 24, respectively, extending beyond the fold lines 25 and 26 in the same direction as the top closure panel. 13. The fold lines 25 and 26 are then substantially parallel to the fold lines 19 and 20.

  Furthermore, the packaging case, and therefore the blank 1, comprises, at least at the lower end E2 of the envelope E, locking means which are arranged, on the one hand, at the of the closure panel 14 and, on the other hand, at the level of at least one and according to the illustrated example of the two bottom closure flaps 21 and 22. Thus, the locking means comprise, at the level of the closure panel 14 , the locking flap 18 separated from the closing panel by the fold line 16. This flap then comprises, facing the closure panel 14, at least one and, according to the illustrated example, two locking edges 30 disposed of In the illustrated example, each locking edge 30 is defined by a notch cut in the locking panel 17, 18, so that the edge 30 is in assembled configuration and closed of the case, at a distance from the edge 31 opposite the closing panels 13 , 14. The locking means furthermore comprise, at the level of at least one and, according to the illustrated example, of the two closing flaps 21, 22 of the lower end E2, an edge 35 intended to form a surface stop for the locking edge in the closed position of the closure panel 14, as will appear below.

  According to an essential characteristic of the invention, one of the articulated panels intended to form the tubular casing E and, according to the illustrated example, the last articulated panel 5 carries on its inner face a sheet 36 comprising a ferromagnetic compound of to allow the attachment of a magnetized object. The ferromagnetic sheet 36 is embodied in FIGS. 1 and 2 by a hatched area. The ferromagnetic sheet 36 may be made of any material comprising a ferromagnetic compound and, preferably, the ferromagnetic sheet 36 is formed by a steel strip having a thickness of less than a few tenths of a millimeter.

  The blank 1 thus formed is used in the following manner to form the case, as illustrated in FIG. 1. Firstly, the fold lines 6, 7, 8 and 10 are formed and the connecting strip 9 is fixed against the hinged panel 2, so as to confer its parallelepiped shape to the case body E. Next , it is proceeded to the closure of the lower end E2 of the case by folding the closure flaps 21 and 22 to the inside of the case. After folding of the locking flap 18 along the fold line 16, the closing flap is raised, so as to engage the locking flap 18 in the space between the panel 2 and the closure flaps 21. and 22. Once this commitment is completed, the closure panel 14 is then substantially perpendicular to the hinged panels 2, 3, 4, 5, while the flap 18 is then in the locking position, as illustrated in FIG. . 1. In this closed position, the surfaces 35 of the closure flaps 21 are then placed opposite the locking edges 30 of the flap 18. It should be noted that, in the locking state of the bottom closure panel 14, such as shown in fig. 1, when a thrust from inside the case is exerted on the latter, the edges 30 abut on the stop surfaces 35 of the closure flaps 21 and 22. Thus, the bottom closure flap 14 can to support the load of the contents of the case E. In this pre-assembled state, the case according to the invention can then be filled by the introduction of a packaged product and a magnetized object which will be immobilized against the ferromagnetic sheet 36. Then, the closure of the first end or high end E1 may occur as explained above for the second end or low end E2.

  Figs. 3 to 5 illustrate another embodiment of a packaging case in which the ferromagnetic sheet 36 is completely covered by a back panel 37. For this purpose, the first hinged panel 2 carries, as shown in FIG. 4, the back panel 37 from which it is separated by a fold line 38 perpendicular to the fold line 6 and substantially in alignment with the fold line 25. According to the illustrated example, the ferromagnetic sheet 36 is fixed first Place on the back panel 37. When forming the blank 1, as shown in FIG. 4, the cons panel 37 is first folded against the first hinged panel 2, so that the ferromagnetic strip 36 is interposed between the back panel 37 and the first hinged panel 2. The shaping of the holster is continues by forming the fold lines 6, 7, 8, 10, so as to come against fixing the connecting strip 9 on the back panel 37 inside the case, as shown in FIG. 5. The mounting of the case is then completed, as previously described in connection with FIGS. 1 and 2.

  Fig. 6 is an alternative embodiment of the blank according to the invention which differs from that illustrated in FIG. 4 in that the back panel 37 is separated from the first hinged panel 2 by a fold line 39 parallel to the fold lines 6, 7 and 8. According to this example the ferromagnetic sheet 36 is first fixed on the inner face of the first articulated panel 2.

  Figs. 7 to 9 illustrate an assembly of two cases, as described in relation with FIGS. 3 to 5. This assembly of two cases is obtained from a pre-cut blank, as illustrated in FIG. 8, which corresponds to the assembly of two blanks, as illustrated in relation with FIG. 4, at their first articulated panel 2 which are then separated by a line of weakness 40. After forming the blank, as shown in FIG. 8, the assembly of the two cases is in the form illustrated in FIG. 7 and 9.

  The invention is not limited to the examples described above because various modifications can be made without departing from its scope.

2882728 12

Claims (16)

  1 - Packaging bag, obtained from a blank (1) pre-cut and assembled, by folding, to include: É a tubular envelope (E) with articulated panels (2, 3, 4, 5) provided with two ends ( E1r E2), of which at least one first end (E1) is open, E and, at the first end (E1) of the envelope, a closure panel (13) articulated on a panel (4) of the envelope (E) and at least one folding flap (23) hinged to another panel (3) of the casing, characterized in that one of the hinged panels (5, 2) of the tubular casing bears on one of its faces a sheet (36) comprising a ferromagnetic compound.   2 - Packaging case according to claim 1, characterized in that the hinged panel (2), provided with the ferromagnetic sheet (36), further comprises a backboard (37) fixed on the hinged panel (2), so as to cover, in part at least, the ferromagnetic sheet (36).   3 - Packaging case according to claim 2, characterized in that the ferromagnetic sheet (36) and the back panel (37) are fixed on the inner face of the hinged panel.   4 - Packaging case according to claim 2 or 3, characterized in that the against panel (37) is connected by a fold line (38) to the corresponding hinged panel (2).   5 - Packaging bag according to one of claims 1 to 4, characterized in that each end (E1, E2) of the envelope (E) is open and in that it comprises, at each end (El , E2) of the envelope, a closure panel (13, 14) and at least one closure flap (23, 21).   6 - Packaging bag according to one of claims 1 to 5, characterized in that it comprises two closure flaps (23, 24) at each end of the tubular casing.   2882728 13 7 - Packaging case according to one of claims 1 to 6, characterized in that each closure panel (13, 14) comprises, opposite the hinged panel which carries it, a locking flap (17, 18).   8 - Packaging case according to one of claims 1 to 7, characterized in that the tubular casing has a rectangular cross section defined by four hinged panels (2, 3, 4, 5) and in that the back panel (37) is attached to a first hinged panel (2).   9 - Packaging case according to one of claims 1 to 8, characterized in that the ferromagnetic sheet (36) is adapted to allow the attachment of a magnetic object against the hinged panel (5, 2) which carries it.   - Assembly of two packaging cases according to one of claims 1 to 9, characterized in that the cases are connected to one another at two first articulated panels (2) which each delimit the envelope tubular of the corresponding case and which are separated by a line of lower resistance (40).   11 - blank precut for producing a packaging case according to claim 1, comprising at least: E a series of articulated panels (2, 3, 4, 5) arranged one after the other separated by fold lines (6, 7, 8) parallel, and intended to form the tubular casing (E), a last articulated panel is extended by a separate connecting strip of the last panel articulated by a fold line and intended to to be fixed in connection with a first articulated panel to ensure the formation of the tubular casing of the case, ^ two closure panels (13, 14), each being in the extension of an articulated panel (5), they are each separated by a fold line (11, 12), and being located on either side of the alignment of the hinged panels (2, 3, 4, 5), and at least one closure flap ( 23) foldable extending in the extension of an articulated panel (2) of the tubular casing e (E) of which 2882728 14 is separated by a folding (25) parallel to and substantially aligned with the fold line (11) of the closure panel (13) located on the same side of the alignment of the hinged panels (2). , 3, 4, 5) that the folding flap (23), characterized in that it comprises a sheet (36) of ferromagnetic material bonded to one of the hinged panels (5, 2) of the tubular casing .   12 - blank precut for producing a packaging case according to claim 2 and one of claims 3 to 9, comprising at least: a series of articulated panels (2, 3, 4, 5), arranged one after the other by being separated by parallel folding lines (6, 7, 8) and intended to form the tubular envelope (E), a last articulated panel of which is extended by a connecting strip separated from the last panel articulated by a fold line and intended to be fixed in relation to a first hinged panel to ensure the formation of the tubular casing of the case, ^ two closure panels (13, 14), each being in the an extension of an articulated panel (5), each of which is separated by a fold line (11, 12), and situated on either side of the alignment of the hinged panels (2, 3, 4, 5) , ^ and at least one folding flap (23) extending in the extension of a panel articulated (2) of the tubular casing (E) from which it is separated by a folding (25) parallel to and substantially aligned with the fold line (11) of the closure panel (13) located on the same side of the aligning the hinged panels (2, 3, 4, 5) that the folding flap (23), characterized in that one of the hinged panels of the tubular casing comprises: E a panel against (37) bound by a line bending (38) to an articulated panel (2), 2882728 EE and a sheet (36), comprising a ferromagnetic compound, attached either to the hinged panel (2) or to the backboard (37) so as to find interposed between the hinged panel (2) and against the panel (37) during assembly of the blank.   13 - cut blank according to claim 11 or 12, characterized in that it comprises, on either side of the alignment of the hinged panels (2, 3, 4, 5), at least one folding flap ( 23, 21) extending in the extension of an articulated panel (2, 3) of the tubular envelope (E) from which it is separated by a fold line (19, 25) parallel to and substantially aligned with the line folding (11, 12) of the closure panel (13, 14) located on the same side of the alignment of the hinged panels (2, 3, 4, 5) as said folding flap (21, 23).   14 - blank precut according to claim 13, characterized in that it comprises, on either side of the alignment of articulated panels (2, 3, 4, 5), at least two closure flaps (21, 22). , 23, 24).   - Blank precut according to one of claims 11 to 14, characterized in that it comprises four hinged panels (2, 3, 4, 5) for defining a tubular envelope of rectangular cross section.   16 - pre-cut blank according to claim 12 and one of claims 13 to 15, characterized in that the backboard (37) is separated from the corresponding hinged panel (2) by a fold line (38) perpendicular to the fold lines (6, 7, 8) separating the hinged panels (2, 3, 4, 5) between them.   17 - blank according to claim 12 and one of claims 13 to 15, characterized in that the back panel (37) is separated from the corresponding hinged panel by a fold line (39) parallel to the fold lines (6, 7). 8) separating the hinged panels (2, 3, 4, 5) between them.   18 - blank precut according to one of claims 11 to 17, characterized in that the ferromagnetic sheet (36) is adapted to allow the attachment of a magnetic object against the hinged panel which carries it.   19 - Assembly of two pre-cut blanks according to claim 16 for producing an assembly, according to claim 10, of two cases, characterized in that the first articulated panel (2) of a blank is separated from the first panel articulated (2) of the other blank by a line of lower resistance (40).