FR2864825A1 - Packaging case for unitary product e.g. cosmetic tube, has one main panel with window for display of contents of case, and internal wedging structure to define cell having U shaped transversal cross-section and opening towards window - Google Patents

Abstract

The case has a peripheral envelope (E) with four main panels (2-5) to form the case body. The panel (4) has a window (F) for display of contents of the case. An internal wedging structure has an extension, of the panel (5), defining a cell (A) for receiving and wedging a product placed in the case. The cell has a U shaped transversal cross-section and opens towards the window. An independent claim is also included for a precut blank for manufacturing a case.

Description

2864825 1

  The present invention relates to the technical field of packaging and more particularly relates to packaging cases which are intended to package products of unitary nature, either by themselves or by a pre-conditioning imposed on them.

  More specifically, the invention relates to packaging cases which are made from a pre-cut raw material blank and then folded to form the actual packaging.

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

  In the technical field above, it is widely known to produce a packaging package of a unitary product from a blank of suitable raw material, cut flat, then mounted to form a case in which a unitary product must be conditioned. As a rule, these are compact cardboard blanks which are made to define after mounting a peripheral envelope constituting a case body and having bottom closure systems and top closure systems. The design of these blanks can be retained so that the case body has a most generally parallelepiped shape without it being necessary to exclude bodies of cases of different shapes such as pentagonal or hexagonal cross section, or octagonal.

  Conditioning cases of the above type may be considered satisfactory for the primary function of conditioning or over-conditioning.

  Moreover, it is increasingly sought to ensure the packaging of unit products in this manner but with an additional desire to protect the unit product packaged against knocks, shocks or crushes, so as to ensure its integrity. This is the case of many unitary products, whether prepackaged or not, and more particularly certain products, especially luxury ones, such as perfumes or the like which must be effectively protected from the production site to the distribution site without the phases transport, storage, handling, are likely to undermine their integrity.

  To meet such a requirement, there are known packaging cases having an internal structure which defines a wedging and receiving cell for a packaged unit product. The implementation of such a cell or receiving housing may appear necessary when it is desired to provide effective protection to the packaged product. Similarly, such a cell can be used to package a unit product having dimensions or overall size substantially less than the internal volume of the packaging case. This may, for example, be the case where, for aesthetic and / or commercial reasons, the packaging case must have external dimensions sufficient to convey the impression of quality and value that must be attached to its contents. Similarly, it may be necessary to have a packaging case of a size much greater than that of its contents to be able to benefit on the outer faces of the case of a sufficient area to reveal the indications of use and composition of the packaged unit product.

  Generally the cell arranged in such cases has four side walls and is open only at its ends. Thus, the cases according to the prior art with integrated cells do not allow a visualization of the contents without a prior opening of the case.

  The object of the invention is to overcome this drawback by proposing an integrated cell packaging case which offers the possibility of viewing the contents of the cell without opening the case while maintaining the optimum protection characteristics offered by the cell.

  In order to achieve this objective, the invention relates to a packaging case for a packaged unit product, made from a pre-cut and folded blank 30 to comprise: a peripheral envelope with articulated panels intended to form 2864825 3 a case body, a top panel and a bottom panel, and an internal structure comprising an extension of a panel which is foldable, counter-fixable and constituted by bands articulated by fold lines parallel to those of the panels forming the case body, and which defines a receptacle and wedging cell for the product placed in the case.

  According to the invention, the packaging case is characterized in that one of the main panels comprises a window for viewing the contents of the case, and in that the cell has a U-shape in cross section. and is open next to the main panel window.

  Thus, the combination of the main panel window and the U-shape of the open cell towards the window allows a visualization of the contents of the cell without opening the case.

  According to the invention, the internal blocking structure can be realized in different ways. According to a preferred embodiment, the internal structure comprises from a connecting strip, adjacent to the first main panel, at least seven articulated strips, the last of which is connected to a binding strip against the binding strip and three consecutive bands of which form the side walls and the bottom of the cell, which bottom is laminated against the last articulated strip parallel to the main panel provided with the window.

  According to a feature of the invention, in order to allow perfect immobilization of the cell in the case body, the penultimate hinged band is counter-fixed on a main panel and opposite the bonding strip.

  In a preferred but non-exclusive embodiment of the case according to the present invention, the cell is intended to receive an elongated tube having a flattened end and opposite this end an opening for sampling the contents of the tube closed by a plug. In order to ensure perfect positioning of the tube in its socket, the side walls of the cell then each have at one end of the cell a notch for receiving the flattened end of the tube.

  According to the invention the notch can be made in various ways, in a preferred embodiment variant but not strictly necessary, each notch comprises at the upper edge of the side wall a V-notch whose edges converge towards a slot which opens in a triangular window whose tip is oriented opposite the slot. This conformation of the notch allows, on the one hand, a guide of the flattened end of the tube during its introduction into the cell, and avoids, on the other hand, by a non-return effect of the slot connecting the V notch at the triangular window, an inadvertent release of the end of the tube.

  Still in order to ensure perfect immobilization of the tube in the cell, according to another characteristic of the invention, each of the two articulated strips bordering the cell and adjacent to the strips forming the side walls of the cell and has, at the level of from the end of the cell opposite to the notches, a tab for holding the plug of the tube.

  According to yet another characteristic of the invention, at least two main panels have, at their lower edge, at least one support lug intended to ensure the stability of the holster in a vertical position. The implementation of these support lugs allows to place the case in a vertical position of the cell and this despite the curvature that may be likely to present the bottom closure panel. Thus, it is possible to arrange the case vertically even when it is disposed in the cell a product whose weight would not be sufficient to counteract the propensity to bend the bottom closure panel.

  According to the invention the support legs can be associated with different main panels. According to a preferred feature of the invention, the main panel carrying the bottom closure panel, comprises at least two disjoint support lugs whose base is located at the line of the fold line separating panel closing panel 2864825 5 main while the opposite main panel has at its lower edge at least one support lug.

  According to yet another characteristic of the invention, the packaging case further comprises two top closure flaps and two bottom closure flaps.

  The invention also relates to a pre-cut blank for the production of a packaging case as described above. According to the invention, such a pre-cut blank then comprises: E a series of four main panels arranged one after the other separated by parallel fold lines and intended to form the tubular envelope, the third main panel being provided a window, E two up and down closure panels, each extending in the extension of a main panel, they are each separated by a fold line and being located on either side of the alignment articulated panels, each closure panel being provided with a closure flap from which it is separated by a fold line, E two foldable top closure flaps, each extending in the extension of a main panel from which they are separated by a folding parallel to and substantially aligned with the folding line of the top closure panel, two foldable lower closing flaps, each extending in the extension of a pann main water from which it is separated by a fold parallel to and substantially aligned with the fold line of the bottom closure panel E and a foldable and counter-fixable extension, which comprises, from a separate connecting strip of a first main panel by a fold line, at least seven bands articulated by folding lines parallel to those of the main panels including: 2864825 6 É the second band and the fourth band are intended to form the side walls of the cell, the third band is intended to form the bottom of the cell and to bear against the seventh band, the sixth band is intended to be fixed to the second main board, E and the seventh band is lined, the opposite of the sixth band, by a fastening strip intended to be fixed on the connecting strip.

  According to a characteristic of the invention, the second hinged band and the fourth hinged band each have at their upper edge a notch for receiving the flattened end of a tube.

  According to another characteristic of the invention, the first articulated band and the fifth articulated band each have, at their lower edge, a tab for holding the plug of a tube which is cut respectively in the second and fourth articulated strips. .

  According to yet another characteristic of the invention, at least two main panels each have, at their lower edge, at least one support lug extending in the extension of the corresponding main panel.

  Preferably, the main panel, carrying the bottom closure panel, comprises at least two disjoint support lugs whose base is located at the fold line separating the closure panel of the main panel, while the main panel non-adjacent present, at its lower edge, at least one support lug.

  Various other characteristics appear 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.

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

  Fig. 2 is a plan view of a blank for the production of a case according to FIG. 1.

  Fig. 3 is a cross section taken along the plane III-III of FIG. 1.

  The packaging case, as shown in a semi-formed state in FIG. 1, is obtained from a blank pre-cut flat, as shown in FIG. 2. Such a blank can be made from compact cardboard, corrugated cardboard or plastic sheets, the nature of the constituent material is not characteristic of the invention.

  The blank, designated as a whole by ref. 1, comprises four articulated panels 2, 3, 4 and 5, which are intended to define a peripheral envelope E of parallelepipedal general shape as it appears in FIG. 1. This peripheral envelope E is intended to constitute a case body, that is to say, within the meaning of the concept of packaging, a container.

  Fig. 2 shows that the panels 2, 3, 4 and 5 extend after each other being delimited each with respect to the following through a fold line 6, 7 and 8 which are parallel to each other and perpendicular to the alignment of the articulated panels. It should be noted that the fold lines appear in FIG. 2 dotted, while the solid lines represent cutting lines.

  Conventionally, the first main panel 2 and the third main panel 3 are bordered, beyond folding lines 9 and 10, parallel to each other, and perpendicular to the lines 6 and 7, respectively of a high closing panel 11 and a low closure panel 12. These panels 11 and 12 have in plan a shape corresponding to the section of the peripheral envelope E, in this case rectangular, and are each provided, beyond a line 13 or 14, a closure flap 15 or 16.

  Although this is not to be considered essential for the invention, the second main panel 3 and the fourth main panel 2864825 8 disposed on either side of the third panel 4 are each provided, beyond a line 17 or 18, a lower closure flap 19 or 20 extending in the same direction as the bottom or bottom closure panel 12. Similarly, the articulated panels 3 and 5 have, in contrast to shutters 19 and 20, high shutters respectively 21 and 22 extending beyond fold lines 23 and 24 in the same direction as the top or top closure panel 11.

  According to a feature of the invention, the third main panel 4 comprises a window F for viewing the contents of the case. Of course such a window could be arranged in another main panel such as for example the first panel 2.

  According to the destination of the case, the first panel 2 has an extension designated as a whole by the reference 25 and intended to define by folding and counter-fixing, an internal structure forming a receptacle A for receiving and blocking a product placed in the case as it will appear later.

  As is more particularly apparent from FIG. 2 and in a flat state of the blank 1, the extension 25 extends from the first main panel 2 substantially in alignment with the main panels 2, 3, 4 and 5 for forming the case body E. The extension 25 comprises firstly a connecting strip 26 which is connected to the first main panel 2 by a fold line 27 parallel to the line 6 separating the panel 2 from the adjacent panel 3. The connecting strip 26 is intended for mounting the case as will be apparent in the following, to provide a connecting surface with the fourth main panel 5, such a connection can intervene in several different ways, and preferably by gluing.

  The extension 25 also comprises a series of seven articulated bands 31 to 37 which extend from the connecting strip 26 being delimited by seven fold lines 41, 47 parallel to the fold line 27 as well as to the lines of the fold. folding 6, 7 and 8 separating the main panels. The end band 37 is further extended beyond a fold line parallel to the line 47 by an attachment band 49.

  The second 32, third 33 and fourth 34 articulated strips of the extension 25 are intended to define the side walls with respect to the strips 32 and 34 and the bottom with respect to the strip 33 of the cell A which has a cross section. transverse U-shaped, as shown in FIG. 3. The first band 31, the fifth band 35 and the seventh band 37 are, for their part, intended to be placed in the holster parallel to the first and third main panels. For this purpose, the sum of the widths L31, L33, L35 of the first, third and fifth articulated bands is substantially equal to the width La of the seventh articulated band 37, these widths being measured between the fold lines delimiting said articulated bands.

  To obtain the packaging case according to the invention from the blank described above, it suffices, in a series of assembly operations given by way of example, to proceed with the formation of the fold lines 41 to 48 so as to fold the strips 31 to 37 and 49 to first fix by any appropriate means the third band 33 on the inner face of the seventh articulated band 37 and then fix the fastening strip 49 on the inner face of the band link 26 as shown in FIGS. 1 and 3. It should be noted that, in order to impart its U-shape, these assembly operations involve a folding of the lines 43 and 44 which could be described as an anti-folding as opposed to the folding direction of the lines 41, 42 and 45 to 48.

  At this stage, the internal cushioning structure is completely formed. The mounting of the case then continues with the formation of the fold lines 27 and 6 so as to allow a counter-fixation 'of the outer face of the sixth articulated band 36 on the internal face of the second main panel 3.

  An additional step then involves marking the folding lines 7 and 8 so as to complete the formation of the peripheral envelope or case body E which is performed by a counter-fixing of the connecting strip 26 on the inner face of the fourth main panel 5, such a counter-fixing can advantageously also be obtained by gluing.

  In this semi-mounted state illustrated in FIG. 1, it should be considered that the hinged strips 32, 33, 34 define, the receiving and wedging recess A which has a substantially U-shaped open towards the viewing window F. It should be noted that the hinged strips 31 , 33, 35, are then parallel to the main panels 2 and 4. In addition, it should be noted that in this semi-mounted state, the general design of the case allows to place it in a flattened state by a simple pressure on the first 1 and third 4 main panels. This advantageous feature of the invention provides a reduced storage volume before implementation of the case. The pre-assembly or assembly operations, described above, can be carried out by hand or, conversely, on an automatic assembly machine.

  The shaping of the case can then involve what could be considered as a penultimate step of folding the lower closure flaps 19 and 20 to the inside of the case and then closing the bottom closure panel 12 to form the bottom of the case.

  The case is then adapted to receive a unitary product 41, pre-conditioned or not, such as a bottle, a tube, a container or any product box.

  In a preferred embodiment, the case according to the invention is intended for the packaging of a tube T of a cosmetic or hygiene product, having a general shape that could be called a carton, with a filling end flattened and, opposite this end, a draw-off mouth of the product contained in the tube, closed by a removable cap. The tube T is symbolized in phantom in FIG. 1.

  In order to allow a perfect immobilization of the tube in the cell A U of the case, the side walls of the cell 33 and 50 have a notch 51 for receiving the flattened end of the tube. Such a notch 51 can then be made in any appropriate way.

  According to the illustrated example, each notch 51 comprises, from the upper edge 50, a V-shaped notch 52 which is extended by a slot 53 opening into a triangular-shaped window 54 pointing towards the lower edge 55 of the corresponding hinged band.

  This particular form, adopted for the notch 51, allows, first of all, a perfect guide of the flattened end of the tube by the notches 52 to the slots 53, so that said flattened end is naturally housed in each windows 54 when introducing the tube into the case. In addition, the combination of the slot 53, which opens into a rectilinear side of the window 54, produces a non-return effect which avoids any untimely release of the flattened end of the tube T. Furthermore, in order to ensure perfect immobilization of the lower end of the tube T and, in this case, the cap of the latter, the first 31 and fifth 35 articulated bands have, at their lower end, each a tab 56 cut in part in the second 32 and fourth articulated bands. In a mounted state of the case, the tabs 56 then extend in the extension of the bands 35 and define, in association with the bottom 33 of the cell and / or the seventh articulated band, a space inside which the stopper of the tube is wedged.

  The filling of the case may also involve the introduction of additional elements of the unitary product such as accessories and / or instructions for use which are arranged in the case, in the space reserved between the walls of the case. and the peripheral envelope E. Finally, the shaping of the case can be completed by closing the top closure panel 11 after folding the top closure flaps 21 and 22.

  According to a feature of the invention, in order to guarantee the stability of the case in a substantially vertical position, the first main panel 2 has, at its lower edge, as defined by the fold line separating it from the panel. low closure, two disjointed support legs 60.

  It should be noted that the base of the support lugs 60 is then substantially at the level of said fold line.

  Similarly, the third main panel 4 has a tab 61 extending almost the entire length of the lower edge of said third main 4.

  The bearing lugs 60 and 61 define, when the panel and the lower closure flaps are closed, a particularly stable support for the holster on a flat surface and despite the possible bulge of the bottom closure panel. This advantageous characteristic of the invention thus makes it possible to take advantage of the visualization characteristics offered by the combination of the window F and the U-shape of the cell A to ensure optimal presentation at the point of sale of the packaged products. in the case according to the invention and this even in the case where the product is relatively light, so that its weight would not be able to ensure, by itself, the stability of the case.

  Of course, the invention is not limited to the example described and shown and various modifications can be made without departing from its scope.

2864825 13

Claims (12)

  1 - Packaging bag for a unit packaged product, case made from a pre-cut blank and assembled by folding to include: E a peripheral envelope which comprises four main panels (2, 3, 4 and 5) for forming a body case (E) as well as a top panel (11) and a bottom panel (12), E and an internal cushioning structure comprising an extension (25) of a main panel (5), which is foldable , counter-fixable, and consisting of strips (31 to 37), articulated by fold lines (41 to 48), parallel to those of the main panels (6, 7, 8) and which defines a receiving and wedging recess (A) for the product placed in the case, characterized in that one (4) of the main panels comprises a window (F) for viewing the contents of the case, ^ and in that the cell (A) has a U-shape in cross-section and is open next to the main panel window ipal.   2 - Packaging bag according to claim 1, characterized in that the internal structure comprises from a connecting strip (26), adjacent to the first main panel (2), at least seven articulated strips (31 to 37) of which the last one (37) is connected to a fastening band (49) counter-fastened to the connecting strip (26) and three consecutive strips (32, 33, 34) of which form the side walls and the bottom of the cell ( A), which is laminated against the last hinged band (37) parallel to the main panel (2) provided with the window.   3 - Packaging bag according to claim 2, characterized in that the penultimate hinged band (36) is counter-fixed on a main panel (3) and opposite the connecting strip (26).   4 - Packaging bag according to one of claims 1 to 3, characterized in that the cell (A) is intended to receive an elongated tube (T) having a flattened end and, opposite this end, a 2864825 14 sampling opening of the content of the tube closed by a plug and in that the side walls of the cell (32, 34) each have, at one end of the cell, a notch (51) for receiving the flattened end of the tube.   5 - Packaging bag according to claim 4, characterized in that each notch (51) comprises, at the upper edge (50) of the side wall (32, 34), a V-shaped notch (52) whose edges converge to a slot (53) which opens into a triangular window (54) whose tip is oriented opposite the slot (53).   6 - Packaging bag according to claim 4 or 5, characterized in that each of the two articulated strips (31, 35), bordering the cell (A) and adjacent to the strips (32, 33), form the side walls of the cell (A) and have, at the end of the cell opposite the notches (51), a tab for holding the plug of the tube.   7 - Packaging bag according to one of claims 1 to 6, characterized in that at least two main panels (2, 4) have, at their lower edge, at least one support lug (60, 61). ) intended to ensure the stability to the case in vertical position.   8 - Packaging bag according to claim 7, characterized in that the main panel (2) carrying the bottom closure panel (12) comprises at least two disjoint support lugs (60) whose base is located at the the folding line separating the closure panel (12) from the main panel (2), while the opposite main panel (4) has, at its lower edge, at least one support lug (61).   9 - Packaging case according to one of claims 1 to 8, characterized in that it comprises two high closure flaps and two low closure flaps.   - Blank precut for the realization of a packaging case according to one of claims 1 to 9, comprising: É a series of four main panels (2, 3, 4, 5) arranged one after the other in being separated by parallel fold lines (6, 7, 8) 2864825 for forming the tubular casing (E), the third main panel (4) being provided with a window (F), E two panels of closing up (11) and down (12), each extending in the extension of a main panel (3, 4, 2), each of which is separated by a fold line (9, 10) and being located from both sides of the alignment of the hinged panels (2, 3, 4, 5), each closure panel being provided with a closure flap from which it is separated by a fold line, E two high closing flaps (22) foldable, each extending in the extension of a main panel (3, 5) which it is separated by a folding (24) parallel to and meaning ibly aligned with the fold line (10) of the top closure panel (11), two foldable bottom closure flaps (22), each extending in the extension of a main panel (2) from which it is separated by a of folding (24) parallel to and substantially aligned with the fold line (10) of the bottom closure panel (12), E and a foldable and counter-fixable extension (25), which comprises, from a web of link (26) separated from a first main panel (2) by a fold line (27), at least seven strips (31 to 37) articulated by fold lines (41 to 47) parallel to those of the main panels of which : The second band (32) and the fourth band (34) are intended to form the side walls of the cell, E the third band (33) is intended to form the bottom of the cell and to bear against the seventh strip (37), the sixth strip (36) is intended to be attached to the second main panel (3), E and the seventh strip (37) is bordered, opposite the sixth strip (36), by a fastening strip (49) intended to be fixed on the connecting strip.   The pre-cut blank according to claim 10, characterized in that the second hinged band (32) and the fourth hinged band (34) each have, at their upper edge (50), a receiving notch (51). the flattened end of a tube.   12 - pre-cut blank according to claim 11, characterized in that each notch (51) comprises, from the upper edge (50) of the hinged band (31, 34) side, a V-shaped notch (25) whose edges converge to a slot (53) which opens into a triangular window (54) whose tip is oriented opposite the slot (53).   13 - pre-cut blank according to claim 11 or 12, characterized in that the first hinged band (31) and the fifth hinged band (35) each have, at their lower edge (55), a holding lug (56) plug of a tube which is cut, respectively, in the second (32) and fourth (34) articulated strips.   14 - pre-cut blank according to one of claims 10 to 13, characterized in that at least two main panels (2, 4) each have, at their lower edge, at least one support lug (60, 61 ) extending in the extension of the corresponding main panel.   Packaging bag according to claim 7, characterized in that the main panel (2), carrying the bottom closure panel (12), comprises at least two disjoint support lugs (60) whose base is situated at the level of the fold line separating the closure panel (12) from the main panel (5), while the non-adjacent main panel (4) has, at its lower edge, at least one support lug (61).