JP4454158B2 - Case, cut member assembly, method for unpacking case, method for manufacturing such case, and machine for manufacturing - Google Patents

Abstract

The invention relates to a crate (1), a set of blanks, a method for opening the crate, and a method and machine for the production of said crate comprising a tray (2) and a lid (3). The crate (1) comprises a first transversal side wall (4) which can be manually torn by a user from the rest of the crate. The other side walls (15) of the tray are exclusively fixed to the other side walls of the lid by one or several partially pre-cut portions (16, 17) and/or several glueing points enabling the walls to be dismantled by manually moving them apart and exerting a force in a perpendicular position to said walls.

Description

[0001]
(Technical field)
The present invention includes two cut members made of cardboard or corrugated sheet material, ie, a first cut member that forms a tray, and a second cut member that forms an upper portion, ie, a lid of the case, and meshes with the tray. It relates to a packaging case comprising two parts of the containing type.
[0002]
The present invention also relates to a cut member assembly for obtaining such a packaging case, as well as a method and a machine for manufacturing a case from the cut member assembly.
[0003]
The invention also relates to a method for unpacking such a case.
[0004]
The present invention is particularly suitable for rigid products (wide mouths) that allow products to be easily displayed on the outside of their shipping packaging material in a clean and eye-catching form, especially on display shelves in large store floors. In the field of packaging materials for bottles, cans ...) or semi-rigid products (bags ...), they are not particularly exclusive but are particularly useful.
[0005]
(Background technology)
A packaging case of the above-mentioned type that allows the upper part of the case to be quickly separated in relation to the lower part is already known (EPO637,548).
[0006]
However, such a case has the disadvantage that it does not allow easy, rapid and complete removal of all products from the packaging material to be displayed in alignment on one shelf.
[0007]
(Disclosure of the Invention)
The present invention makes it possible in particular to completely remove the packaging material trays and lids by a few simple operations without touching the product, thus allowing complete removal of the packaging material from the product and display in the store. To provide a case and cut member assembly that better meets the practical requirements compared to the prior art in that all products contained in the packaging material on the shelf can be displayed perfectly, immediately and at once. It is an object.
[0008]
Furthermore, the case can be automatically assembled at a fast tempo (20 cases / minute) while exhibiting high robustness. The case thus obtained according to the invention can easily be stacked on a pallet.
[0009]
(Best Mode for Carrying Out the Invention)
For this purpose, the present invention is arranged to be captured by the user, especially in a two-part packaging case of the type described above, and can be peeled off by the user in relation to the rest of the case. Having a first lateral side wall connected to the rest of the case by a partially pre-cut joint line, and the tray side wall or walls are manually attached to the wall One or more partially pre-cut portions and / or one or more adhesive points that can be released from the wall by applying a force and pulling apart vertically. A packaging case characterized by being fixed to other side walls is provided.
[0010]
A partially pre-cut part (or sometimes referred to below as a more easily pre-cut part) means that it adheres to the rest of the cutting member only at some linkage points or parts. Therefore, it is a brittle portion that can be easily released from the cut member by pulling perpendicular to the plane of the cut member.
[0011]
The one or more partially pre-cut portions and / or the one or more adhesion points are arranged to exhibit excellent resistance as long as stress is applied in the vertical direction, ie essentially in the plane of the wall. ing.
[0012]
This resistance is particularly sufficient so that the product can be transported even when the packaging material is captured by the lid.
[0013]
On the other hand, if the separation stress applied between the walls is clearly perpendicular to the walls, these walls can advantageously be used as this arm and / or push-back means, for example for passage. After passing through a hard point where the user needs to apply a supplemental stress of several Newtons using the thumb of the hand, for example, a force of about 5-10 Newtons is used to easily unintegrate by hand without peeling the cardboard. The
[0014]
In addition, here, unless the first side wall of the case is manually peeled off by the user, the tray and lid remain rigid so that no separation or opening between the tray and lid is possible. It should be further pointed out that is advantageously hindered by the hard point or points mentioned above.
[0015]
The engagement between the tray and the lid can be internal or external. That is, the tray wall may be positioned outside or inside the lid.
[0016]
Advantageously, the first lateral side wall is formed by adhesion of the two first side walls (5, 6; 70, 79) of the lid and tray, respectively.
[0017]
Here, the tray and the first side wall of the lid, which are fastened together with each other, for example with a “hot melt” type adhesive strip, can be separated in the same way without cardboard peeling. The excellent rigidity of the case is ensured in a state where there is no property.
[0018]
Adhesion at the point of attachment, such as a partially pre-cut part that is easily peeled off from the rest of the cutting member to which it originally belongs, conversely excludes the possibility of peeling.
[0019]
To be captured by hand, the first lateral side wall of the case has capture means or is integrated therewith, for example.
[0020]
In accordance with the embodiments of the invention described more specifically herein, these capture means and the partially pre-cut joint lines of the first lateral side walls are particularly perfect for product legs. So as to allow the user to peel off the first side wall of the case.
[0021]
The partially pre-cut joint line of the first side wall with the rest of the packaging material advantageously coincides with the edge of the case between the wall, the bottom surface and the lid.
[0022]
Equally advantageously, only the partially pre-cut joint line of the case's first lateral side wall with the bottom surface coincides with the corresponding ridge and / or the first side wall and the adjacent side wall partly. Only the joint line cut in advance matches the corresponding ridge.
[0023]
For example, a user who can capture the side wall to be stripped with his / her hand has a greater stripping force than the separation force to un-integrate the partially pre-cut portion, eg 1 to 4 kilograms. Effect.
[0024]
Advantageously, the product legs can always be removed from the side of the peelable surface, with a single vertical or horizontal pull or a double horizontal pull on each side. It can be the entire side surface or almost the entire side surface (ie at least 70% of the surface).
[0025]
Advantageously, a partially pre-cut bond line (hereinafter also referred to as a more simply pre-cut bond line) was first cut of the cardboard at the start or later The first hard point due to the longer part length, and then possibly longer with a supplementary one or two intermediate hard points, e.g. longer ends with a more easily peelable part It is cut to present a more brittle portion with a pre-cut portion.
[0026]
Thus, by dividing the stripping stress, it is possible to better ensure that the first sidewall is not released in the event of unexpected stresses and / or side impacts applied to the case. .
[0027]
Such measures are likewise connected to the stripping of the first wall of packaging material and, for example, to the rest of the cutting member that supports it by a pre-cut line with one or more hard points. After separation of the partly pre-cut parts or adhesive points that have been removed, the user removes the tray with no product while the lid is held in place on the product and then for example lightly It also makes it possible to remove the lid from the product by lifting and / or sliding horizontally along the product.
[0028]
In advantageous embodiments, one or both of the following measures can be utilized:
[0029]
The partially pre-cut upper joint line between the first side wall of the case and the lid is on the lid or coincides with a ridge on the top surface of the lid;
[0030]
The upper joint line, which is partly pre-cut between the first side wall and the lid of the case, is on the first wall, thus leaving the upper strips integrated with the lid after stripping; It has become.
[0031]
Such a measure makes it possible to block the upper part of the product when removing the tray from under the product leg which could possibly lose its balance and fall backwards.
[0032]
The remaining band-shaped portion may have a large size.
[0033]
The means for capturing the first side wall of the case includes a handle constituted by a cutout centered on the upper joint line of the walls, for example.
[0034]
The one or more partially pre-cut portions and / or adhesion points between the tray and the lid are on the second lateral side wall of the case opposite the peelable first lateral side wall; belong to.
[0035]
-The lid is engaged in the tray.
[0036]
The case has at least two partially pre-cut portions or adhesive points, each positioned on either side on the longitudinal side wall of the case.
[0037]
-Partially pre-cut parts belong to the tray.
[0038]
-The part or parts that have been pre-cut in advance are pre-cut along the open line or along the closed line.
[0039]
The first cut member is a bottom face of the tray connected laterally by a first fold line to a series of three flaps, ie two side flaps forming at least part of the longitudinal side wall of the tray; And a series of flaps connected to each other by at least one second partially precut fold line perpendicular to the first fold line. Comprising at least one lateral fold positioned in the at least one lateral fold, forming at least in part a first lateral sidewall of the tray.
[0040]
Each side flap comprises two partially pre-cut parts.
[0041]
-The second cutting member has three panels, i.e. through one or more partially pre-cut side portions or the bonding points for one and through the bonding line for the other, respectively. A rectangular central panel forming an upper surface of a case lid connected laterally by a third fold line to two side panels forming at least part of a side wall of the case integrated with one cutting member; Have.
[0042]
The second cut member comprises two sets of side folds on both sides of the panel connected by a fourth fold line positioned facing the second fold line of the first cut member; And the fourth fold line between the turn and the side panel is partially cut in advance.
[0043]
The second cut member has at least four panels and end bonding tabs connected to each other by a fourth fold line parallel to the second fold line of the first cut member; The four panels comprise a set of turns on the opposite side of the first cut member.
[0044]
Each flap of the first cut member is folded in the lateral direction, i.e. connected to the central flap and forms a partially pre-cut part of the bottom and is connected to the side flaps and glued onto said central flap With two side folds.
[0045]
The invention also relates to a cut member assembly for the manufacture of a case as described above.
[0046]
Similarly, the present invention provides a first cut member and a case lid for the purpose of forming two cut members, i.e. trays, each formed with a single flap or central panel and a plurality of side flaps or side panels. Having a second cutting member for forming
The first cut member is connected to the central flap and is adjacent to the side panel via at least one partially precut portion that belongs to one of the cut members and is bonded to the other cut member At least one side flap or second lateral fold arranged to be integrated with
Comprising a first lateral fold connected on the other side to the central flap by a partially pre-cut joint line, and the side panel of the second cut member in the first lateral fold It is designed to be glued and connected to the central panel by a partly pre-cut joint line,
Also relates to a cut member assembly featuring:
[0047]
Advantageously, the side flaps of the first cut member each comprise one fold connected to the corresponding flap by a fold line that is partially pre-cut on the side of the first lateral fold, respectively.
[0048]
Advantageously, the side panel connected to the bottom surface by a partially pre-cut joint line has two folds connected to the side panel by a partially pre-cut fold line.
[0049]
In an advantageous embodiment, the first cut member comprises at least one partially pre-cut fold and the second cut member is adjacent to its two by a partially pre-cut fold line. Via a part of the panel forming the strip, as opposed to the panel connected to the panel and intended to form the first bottom vertical wall of the case by a partially pre-cut fold line, or It comprises at least four panels, including one with directly connected turns.
[0050]
Advantageously, the second cutting member comprises four panels, including one connected to its two adjacent panels by a partially pre-cut fold line.
[0051]
The present invention similarly peels off the lateral wall of the case by hand, manually uncases the case wall and lid from the bottom surface, pulls the bottom surface horizontally to release the lower part of the product on top, The present invention also relates to a method for unpacking the case and displaying the content product, characterized by removing the lid to completely release the content product.
[0052]
More specifically, the present invention also includes two cut members made of cardboard or corrugated sheet material: a first cut member capable of forming a tray and a second cut member capable of forming a case lid. In the method of unpacking a case with a polygonal cross-section formed and filled with a rigid or semi-rigid product, the remaining part of the packaging material by means of a partially pre-cut joint line that allows the case to be peeled Having a first lateral sidewall coupled to the
-Peeling the first lateral side wall by hand, for example at once,
-Manually unintegrating the walls of the rest of the tray from the walls of the rest of the lid, where one or more of these walls are either by means of adhesive points that can be easily unintegrated or Are fixed to each other only through partially pre-cut wall parts,
-Pull the tray horizontally to release it and remove it from the product on top;
-Then remove the lid to completely release the contents;
It also relates to a method characterized by
[0053]
Advantageously, the lid has a band after peeling off the first lateral side wall, so that the lid is pivoted upwards to retract the band in relation to the product and then pull the lid horizontally.
[0054]
Similarly, the present invention also includes two cut members made of cardboard or corrugated sheet material, that is, a first cut member that forms one tray and a second portion that forms the upper portion of the case meshed with the tray. In a two-part packaging case including a cut member, the first cut member and the second cut member are constituted by at least one flap portion partially cut in advance in the cut member Connected by means that allow its separation, arranged to be captured by the user, partially pre-cut to allow the user to peel it off in relation to the rest of the case A first lateral formed by two flaps belonging to each cutting member, connected to the rest of the case by a joining line Also it proposes to have a side wall.
[0055]
Advantageously, each cutting member comprises a series of four main flaps ending with an identification tab, said main flap and said tab being directly or secondary through a first fold line parallel to each other The cut members are connected to each other via a flap, the first fold intended to further form at least partly the bottom surface of the tray on one side and the top surface of the upper part of the case on the other side. A first side turn assembly disposed on one side of the main flap connected to the series of main flaps by a second fold line perpendicular to the line.
[0056]
Advantageously, the singular or plural partially pre-cut portions are singular or plural which allows the flap or wall to be unintegrated by a manual separation obtained by applying a force perpendicular to the wall. It is replaced with the adhesion point.
[0057]
Here, a pre-cut portion or a partially pre-cut portion is attached to the remaining portion of the cut member only at some linkage points or portions, so that it is relative to the plane of the cut member. I would like to remind you that it is a fragile part that can be easily released from the cut member by vertical pulling.
[0058]
Advantageously, the locking tab of the second element extends above the locking tab of the first element along only a part of the side edge of the flap to which it is adjacently connected.
[0059]
In another advantageous embodiment, the main flaps are separated from each other by secondary flaps to form an 8-sided case with chamfered corners.
[0060]
The present invention comprises a cut member made of cardboard or corrugated sheet material, that is, a first cut member capable of forming a display tray and a second cut member capable of forming an upper portion of the case, respectively. In a cutting member assembly for a packaging case comprising two elements that are arranged to be inserted and can be separated from each other by hand, a series of four main flaps, each element ending with one locking tab The primary flap and the tab are connected to each other via a secondary fold or directly through a first fold line parallel to each other, each element further comprising one A second fold perpendicular to the first fold line is intended to at least partially form the top surface of the second element for the bottom surface and the other of the tray. Comprising a first laterally folded assembly disposed on one side of the main flap connected to the series of main flaps by a line, the two elements being said first of the first element, called the outer flap A main flap that is arranged to be connected to each other by at least one flap portion that is pre-cut in one of the main flaps, said portion facing the second element called the internal flap Is fixed to
-It is also proposed that the lateral flaps of the cutting member and the lateral flaps of the second cutting member are connected to the corresponding adjacent flaps and turns by means of pre-cut joint lines.
[0061]
In an advantageous embodiment, the various measures described above with reference to the case according to the invention can also be used.
[0062]
Similarly, the present invention includes two cut members each formed by three flaps, that is, a first cut member intended to form a tray and a second cut member intended to form an upper portion. Characterized in that these cutting members are integrated with each other only via two pre-cut portions that belong to one of the cutting members and are bonded to another cutting member. A cut member assembly is also proposed.
[0063]
Advantageously, the two cutting members are folded flat on top of each other.
[0064]
The invention also proposes a case obtained using such a cut member assembly by tunneling the assembly bonded via the pre-cut part belonging to the end flap. .
[0065]
The present invention also provides packaging with a polygonal cross section from two cut members made of corrugated sheet material: a first cut member capable of forming a display tray and a second cut member capable of forming an upper portion of the case. We also propose a method of the type described above for the production of a case.
[0066]
The present invention is also, and more strictly speaking, a method for manufacturing such a packaging case from two cut members, wherein one of the cut members includes at least two pre-cut portions in the cut member. Including
-Flatly glue the part,
-Affix one of the parts flatly on the other cutting member;
-Wrapping the cut member assembly thus integrated around a volume of defined dimensions;
-Forming the packaging case including a display tray that can then be manually unintegrated from the upper part of the case by simply pulling one of the cutting members towards the outside of the case near the pre-cut part; In this way, a method of applying another part that has been preliminarily pasted onto another cut member after winding and turning around the volume has also been proposed.
[0067]
In an advantageous embodiment, the volume of the defined dimension is a mandrel.
[0068]
Equally advantageously, the method carried out is that the first cut member is a series of three flaps, i.e. two side flaps in which the first fold line can at least partially form the two longitudinal side walls of the tray. Comprising a central flap that can form a bottom surface of the tray laterally connected, wherein the series of flaps is intended to form at least a portion of the lateral side wall of the tray, and Including at least one set of lateral folds on one side of the flap to which it is connected by a second fold line perpendicular to the first fold line, the second cut member comprising at least one panel Such two cutting members are related.
[0069]
The present invention also provides packaging with a polygonal cross section from two cut members made of corrugated sheet material: a first cut member capable of forming a display tray and a second cut member capable of forming an upper portion of the case. In the machine for manufacturing the case for
-One of the cutting members comprises in said cutting member at least two pre-cut portions, each positioned on either side of said cutting member in relation to the longitudinal axis;
-Means for pasting said defined part;
-The pre-cut part in a state in which the fold line of one cut member is installed in relation to the fold line of another cut member in order to be able to wind around one volume of the prescribed dimension; Means for positioning the cut members on top of each other so that the first one of them can be glued onto another cut member;
-An application means for fixing said first pre-cut part by gluing on another cutting member;
-And means for forming a box by wrapping and folding a cut member thus integrated around one volume of defined dimensions, for fixation only by adhesion;
Also proposed is a machine characterized by comprising
[0070]
Advantageously, the machine has two supply magazines arranged on either side of the cutting member packaging machine.
[0071]
Advantageously, the volume of the predetermined dimension is, for example, a mandrel with 8 sides.
[0072]
The invention also proposes a machine for carrying out the above based on the cut member assembly also described above.
[0073]
The invention further comprises two cut members made of corrugated sheet material, a first cut member capable of forming a tray and a second cut member capable of forming an upper portion of the case, filled with a rigid or semi-rigid product. A method for unpacking a case with a polygonal cross section, wherein the case is connected to the rest of the packaging material by a partially pre-cut joint line that allows stripping. The cutting member is integrated only by one or more pre-cut parts,
-Manually unmounting the tray from the upper part of the case by peeling off at the level of the pre-cut part,
-Pull the tray horizontally to release the tray and the product on it,
-Next, pull the top part also horizontally to completely release the contents product,
We have also proposed a method characterized by
[0074]
In other words, the tray is pulled under the legs of the product itself that will be able to stay alone on the shelf.
[0075]
Advantageously, the pulling takes place on the same side.
[0076]
The present invention also proposes a method for unpacking the case according to the above embodiment, wherein the upper part and the tray are removed by continuously and horizontally pulling them up and down the product contained in the case. To do.
[0077]
The present invention also forms two cut members made of cardboard or corrugated sheet material, a first cut member forming a display tray and an upper portion of the case meshed within the tray. In a two-part packaging case comprising a second cutting member, the tray is simply outside the two lateral vertical walls, ie the longitudinal vertical wall of the tray and / or the vertical wall of the upper part of the facing case. It can be unintegrated by hand simply by pulling in the direction and can be completely detached from the bottom of the tray or placed flat in the extension of the bottom of the tray without creating cardboard thickening Having one lateral wall and a second lateral wall that can be captured by the operator; and the longitudinal vertical wall of the tray is simply pulled Integrate with the vertical wall of the facing upper part only by means of one or more pre-cut side parts that can be detached by hand by tensioning and / or one or more adhesive points that can be separated by hand simply by pulling It also proposes a packaging case characterized by that.
[0078]
In advantageous embodiments, any of the following measures may be utilized as well or additionally.
[0079]
The second transverse wall of the tray is provided with a handle or a catch cut-out.
[0080]
The upper part has a lateral pull-out surface with a handle or a capture cut-out.
[0081]
The precut side part belongs to the first cut member;
[0082]
-The pre-cut side portions are cut along the open line.
[0083]
Advantageously, they are this way with the completely removed side facing the first lateral wall.
[0084]
Thus, if the tray is about to be retracted by a horizontal pull under the product leg, the pre-cut portion that remains adhered to the upper portion will not encounter obstacles, thus Drawing is easy or possible.
[0085]
The first cut member is a series of three flaps, i.e. two side flaps capable of forming at least part of the longitudinal vertical wall of the tray, of trays connected laterally by a first fold line; Comprising a central flap forming a bottom surface, the series of flaps being connected by at least one second partially pre-cut fold line perpendicular to the first fold line. Comprising at least one lateral bottom wrap positioned on one side, wherein the lateral bottom wrap at least partially forms a first lateral wall of the tray.
[0086]
-The second cut member of the case so that it is unintegrated with the side flaps of the first cut member via the three panels, i.e. the pre-cut side portions or via the adhesive points. A central panel forming an upper surface of the upper portion of the case connected laterally by a third fold line to the two side panels forming at least part of the side walls;
[0087]
Advantageously, the panel comprises two sets of side folds on either side of the panel, which are the fourth folds positioned facing the second fold line of the first cut member. Connected by lines.
[0088]
Advantageously, the fourth fold line is offset towards the interior by the thickness of the cardboard so that the upper part of the case is better positioned inside the tray in relation to the second fold line. .
[0089]
-The pre-cut side part is cut along the closing line.
[0090]
The precut side part belongs to the side panel of the second cut member;
[0091]
-There are two pre-cut side portions that are symmetrical with respect to the longitudinal axis of the packaging material.
[0092]
-There are four pre-cut side portions that are symmetrical two by two in relation to the longitudinal axis of the packaging material.
[0093]
The second cut member has at least four panels connected to each other by a fourth fold line parallel to the second fold line of the first cut member, and an end bonding tab; The four panels include a set of turns on the opposite side of the first cut member.
[0094]
The pre-cut side portion is inclined obliquely towards the outside of the first cut member from the joint between the first and second fold lines, eg 5-30 ° in relation to the corresponding fold line Departing at an angle between.
[0095]
The top part has a bottom vertical wall that is separated or separable from the longitudinal wall by a pre-cut vertical fold line, and the central flap of the tray is connected to the bottom surface by a pre-cut fold line; It has a central lateral flap bonded to the bottom vertical wall.
[0096]
Such measures allow for complete simultaneous stripping of the bottom wall and top part of the tray, completely releasing the external surface of the product contained in the case, and thus allowing the tray and top part to be removed by a horizontal tensile force. Become.
[0097]
Each flap of the first cut member is connected to one bottom lateral flap or central flap and has a central flap with two pre-cut bottom parts and a side flap connected to said pre-cut bottom part; Has two side folds bonded on top.
[0098]
Such measures allow the bottom center fold to be repositioned flat without exhibiting thickening of the cardboard in relation to the bottom surface, where the pre-cut portion is within the extension of the longitudinal vertical wall of the tray. Stay glued to the side folds retracted on the sides.
[0099]
Advantageously, the upper part has one bottom lateral wall formed of three turns, including two folded backs connected to a third one.
[0100]
In other words, each of the two side folds belonging to the side panel of the second cut member respectively starts from the fourth fold line outwardly from the joint between the third and fourth fold lines. It has one fold line that forms an angle of °.
[0101]
With this measure, the folds are automatically tunneled so that they can slide horizontally on the contents of the case so that the upper part of the case can be pulled out horizontally as well as in the prior art. It becomes possible to form.
[0102]
The present invention also proposes a cut member assembly for obtaining a case of the aforementioned type.
[0103]
The present invention also forms a first cut member and a top portion of the case intended to form two cut members or trays, each formed by one central panel or flap and two side panels or flaps. A second cutting member intended to do, said cutting member at least for its side panel and flap belonging to one of the cutting members and being glued to another cutting member A cutting member assembly for manufacturing a case is also proposed, characterized in that it can be integrated with each other only via two laterally precut parts.
[0104]
Advantageously, the central flap of the first cut member comprises a central fold in an extension of the bottom surface with two pre-cut bottom portions, each of the side flaps of the first cut member being said pre-cut It comprises side folds that can each be glued onto the cut bottom part.
[0105]
Equally advantageously, the central panel of the second cut member includes a central fold in an extension of the panel with two pre-cut lid portions, the side panel of the second cut member being Each includes one side fold that can be bonded to each pre-cut lid portion.
[0106]
In an advantageous embodiment, the first cut member and the second cut member each include one or more folded sets, each of which is a corresponding flap by a pre-cut fold line. And connected to the panel.
[0107]
In another advantageous embodiment, the first cut member comprises three pre-cut folds, and the second cut member is for forming the bottom surface of the case by a pre-cut fold line. It comprises at least four panels, including one with folds connected to the panels.
[0108]
The invention will be better understood on reading the following description of an embodiment given as an example without limitation.
[0109]
The description refers to the accompanying drawings.
[0110]
FIG. 1 shows a parallelepiped case 1 consisting of two parts, a rectangular tray 2 and a lid 3, formed from a cut member made of corrugated cardboard, for example a sheet material of double-sided cardboard with a thickness of 3 mm.
[0111]
The case may be a rectangular or nearly rectangular peel formed by overlapping the first rectangular wall 5 of the tray and the first rectangular wall of the facing lid, for example by four “hot melt” adhesive lines. It has a removable first lateral side wall 4.
[0112]
The first wall 6 of the lid is connected to the upper part of the case by a pre-cut line 7 that traverses through the wall, for example about 4/5 of the wall height or near the top surface of the lid. Including a single cutout 7 'in the middle of the line, for example, formed in a half-moon shape that allows the user to slide off two fingers to initiate stripping and then capture the wall with the entire hand Yes.
[0113]
The first wall 5 of the tray is formed by three partially pre-cut fold lines 8, 9 forming the case as represented on the first cutting member of FIG. Is connected to the adjacent side surface and the bottom surface of the tray by a single pre-cut joint fold line 9 '(note that at this time the other edge 8' of the first wall is free).
[0114]
A partially pre-cut line (sometimes referred to simply as a pre-cut line in the text) is obtained by punching the cardboard in a dotted line using a sewing ruler cutter blade. Therefore, the dotted line is constituted by an alternate of a perforated line called a cutting portion and an unperforated line called a cooperation point.
[0115]
The distance separating the two linkage points, in other words the cutting length is called D1 and the distance separating the two cutting rules, in other words the linkage point length is called D2, so the drilling profile corresponds to D1 and D2. It is defined by a series of two numbers.
[0116]
Depending on the nature or basis weight of the paper and the thickness of the cardboard, values of D1 and D2 until the best possible compromise is found to allow easy stripping while maintaining sufficient robustness of the packaging material Fluctuate.
[0117]
Advantageously, D1 and D2 will be varied on the same pre-cut line to create a more brittle or hard point as described above.
[0118]
The case 1 has three other rectangular side walls 10, 11 and 12, that is, two longitudinal side walls 10 and 11 and one second lateral side wall 12.
[0119]
More precisely, referring also to FIGS. 2 and 3, the case is on the side of two cut members, one at the end of the tray and free on three sides 16 and the other end. Two side flaps 15 each comprising two rectangular or substantially rectangular partially pre-cut portions 16 and 17 including two free sides 17 and connected to the central flap 14 by a first fold line Is formed together with the central flap 14 in a first cut member 13 <original text missing, no second cut member>.
[0120]
A joint line 18 between a partially pre-cut portion (also referred to herein as simply pre-cut portion in this document) and the rest of the cut member may have a value D1 of, for example, D2. It is provided in a larger state.
[0121]
The tray, as we have already seen, is a first set of folds 19 which may include two first side folds 19 (here not shown in FIG. 3) and a first side fold 5. Comprising.
[0122]
The tray also comprises a second set of folds 20 connected between the flaps and / or each other in a manner known per se by means of a vertical second fold line.
[0123]
The fold or turns are connected to the corresponding flap and / or the first main fold by a second pre-cut fold line 8, 9 or 9 ', which fold is the first of the case. A part of the peelable wall can be formed.
[0124]
The second cutting member 21 (see FIG. 3) is composed of four rectangular panels 22 and one bonding tab 22 ', which are connected to each other by a third parallel fold line 23, 23'. And one of the two sets, one of which can be connected to the adjacent panel 22 via a strip 26 by a partially precut line 7 to form the top surface of the lid. The rectangular folds 24 and 25 are included.
[0125]
The panel adjacent to the fold is itself connected to the adjacent panel by a pre-cut fold line 23 'superimposed on the line 8' or 8 of the tray.
[0126]
The front side formed by the panel 22 glued on the central turn 5 of the tray, for example by means of a glue line 27 (see FIG. 1) in the lower part, is completely in the direction of the arrow 28, taking into account the joint lines or pre-cut edges. Can be peeled off.
[0127]
Thanks to the capture orifice 7 'provided at the level of the joint line between the lid and the center panel, in fact, when the case is closed and glued, the entire front face of the case is captured as a monoblock and then peeled off. Is possible.
[0128]
For example, a tray that can be captured by a handle (not shown) on the other side can then be removed by pulling it horizontally, and then the first peelable set 19. The upper part or lid that can be captured by its lower part on the other side of the can be removed.
[0129]
FIG. 4 shows the flap by means of a rectangular central flap 32 connected to a rectangular side flap 34 by a first fold line 33 on both sides and a second fold line 37 and 38 perpendicular to the first fold line. The same small two sets of rectangular folds 35 and 36 connected to each other, i.e. a set 35 with a normal fold line 37 according to the invention and partly capable of forming part of a peelable panel and partly It comprises a first cut member 31 that can form a rectangular tray comprising a set 36 with pre-cut fold lines 38.
[0130]
The cut member assembly is similarly comprised of three rectangular panels 41, 42 and 43, one panel 41 for forming the top surface of the lid and two panels 42 and 43 for forming the lateral sides of the lid. It also has a second lid cut member 40 formed.
[0131]
A panel 42 for forming the bottom lateral side of the case is connected to the central panel by a vertical fold line 42 '.
[0132]
The panel 42 is advantageously a capture handle 45 formed by a cut-out portion and, according to the present invention, is centrally rectangular and open on the edge of the panel, and is the main fold of the first cut member fold set 35. It has a partially pre-cut portion 46 that is or can be glued to it.
[0133]
The panel 43 is intended to form a first peelable wall of the case with a set of folds 36.
[0134]
This panel has an upper joint line 44, 44 'or 44 "with the top surface of the lid, with a central orifice 45 for capture and partially pre-cut.
[0135]
Line 44 is positioned in panel 43 and traverses through this panel, for example with a slight upward radius of curvature allowing it to leave a strip after stripping.
[0136]
Another embodiment of the upper joining line, line 44 ', is that this merges with the fold line or ridge of the case, and the third embodiment line 44 "is on each side of the corner of the case. And then positioned in the upper surface of the cover, which is thus partly peeled off simultaneously with the panel, for example in the form of an isosceles trapezoid.
[0137]
The center panel 41 and the side panels 42 and 43 each comprise two sets of rectangular side folds 49, 50 and 31 connected to the corresponding panels by fold lines.
[0138]
A set of folds 49 is connected to the panel 43 by a partially pre-cut fold line 52 to allow it to be peeled off to the junction with the upper joint line 44, 44 'or 44 ".
[0139]
FIGS. 5 and 6 represent the three main stages of unpacking the case 1 according to the embodiment of FIGS. 1 and 2 using the strip 26.
[0140]
First of all, the panel or first lateral side wall 4 is peeled off (arrow 28).
[0141]
Next, the tray 2 is pulled under the leg portion of the product 54 in which the belt-like portion 26 prevents the swinging by holding the upper portion 55 (arrow 53).
[0142]
Next, before pulling out in the horizontal direction (arrow 56), the belt-like portion is retracted by turning the lid 3 by tilting.
[0143]
7 to 13 show a case 60 and a corresponding cut member assembly 61.
[0144]
The assembly 61 comprises a first cut with one rectangular main flap 63 connected to two side flaps 64 which are symmetrical with respect to the longitudinal axis of the cutting member, including for example two different height portions. A member 62 is included.
[0145]
Each side flap 64 has, for example, a diamond-shaped part arranged at the open edge around the side flap 64, for example at the level of joining between two parts of different heights approximately at the center of the corresponding flap A pre-cut portion 66 is provided.
[0146]
Each flap has one rectangular side fold on both sides, ie, folds 67 and 68 on one side and folds 69 and 70 on the other side. The folds 69 and 70 are connected to the adjacent flap by a partially pre-cut fold line 71, and the folds 67 and 68 are connected by a normal line 72.
[0147]
Speaking of the second cutting member 73, it comprises three panels, namely a rectangular central panel 74 and two rectangular side panels 75 that are symmetrical in relation to the longitudinal axis 76 of the cutting member. .
[0148]
Each panel has a rectangular fold on both sides.
[0149]
More precisely, the central panel 74 and the side panels each comprise rectangular turns 76 and 77 on one side and turns 78 and 79 on the other side.
[0150]
The folds 78 and 79 are connected to the corresponding panels by fold lines 80 that are partially pre-cut.
[0151]
When the case is unpacked, the wall 81 formed by the lid folds 78 and 79 and the tray folds 69 and 70 which are separated from each other by a pre-cut fold line is peeled off with a monoblock. Is possible (see FIG. 8), thus after removal of the part pre-cut by lateral separation (FIG. 9, arrow 84), on the upper part or lid as shown by arrow 83 in FIG. The product 82 can be withdrawn laterally by pulling it horizontally.
[0152]
A case unpacking method according to an advantageous embodiment of the invention will now be described with reference to FIGS.
[0153]
The operator peels off the entire front surface 81 of the case, which is connected to the rest of the packaging material only by a pre-cut fold line, both at the tray level and at the upper portion level.
[0154]
Next, the side flap of the tray is released with the thumb, but at this time, the pre-cut portion 66 remains adhered to the side panel 75.
[0155]
Thereafter, the tray is pulled under the product using the handle 85.
[0156]
Finally, similarly, the upper portion is pulled in the horizontal direction by using, for example, a hollow portion provided in the rear surface (not shown) (FIG. 11, arrow 83).
[0157]
FIGS. 14, 15, 16 and 17 show the different elements of the assembly 101, ie, a double-sided corrugated sheet cutting member assembly having a thickness of 2 mm, for example, to form the case 106. FIG.
[0158]
For these figures, the same reference numbers will be used to refer to the case and / or elements of the cut member occupying the same or the same position.
[0159]
The assembly 101 includes a first cut member 102 capable of forming a tray and a second cut member 103 capable of forming a case lid.
[0160]
The second cut member is stacked flat with respect to the first cut member, and once the case is formed, the inner belt of the case can be formed.
[0161]
The first cutting member 102 has a series of four flaps, ie two flaps 104 and 104 'called side flaps interleaved with two flaps 104 "and 104"' called front flaps. These flaps are connected to each other by first fold lines 105 and 105 ', which are represented by a dashed line and a dashed line in FIG. 14 and are parallel to each other, and this series of flaps is a tray having four sides. 106 external walls can be formed (see FIG. 16).
[0162]
More precisely, the flaps 104 and 104 'have a right trapezoidal shape.
[0163]
These flaps are symmetric in relation to a rectangular front flap 104 ″ that forms the rear face of the tray that is higher than the height of the rectangular front flap that forms the front face of the tray.
[0164]
The fold line 105 'between the flaps 104 and 104 "' is pre-cut in the same way as the fold line 105 'between the adhesive tab 104a and the adjacent flap 104', which removes the first wall. enable.
[0165]
In another embodiment, the flap 104 ″ and the flaps 104 and 104 are pre-cut (in other words, partially pre-cut), ie, the cut portion is adjacent to the linkage point. The fold line 105 between ′, in this case, it is the rear surface that can be peeled off.
[0166]
The flaps 104 and 104 ′ have a slanted peripheral upper edge 107 and 107 ′ that is oriented downward in the opposite direction to the flap 104 ″.
[0167]
The tab 104a is rectangular and extends over the entire height of the short side.
[0168]
The series of flaps 104, 104 ′, 104 ″, 104 ″ includes a first series of rectangular folds 108 on the lower side via second fold lines 109 and 109 ′.
[0169]
The folds 108 are intended to form the bottom surface 108 '(see FIG. 15) of the tray in a known manner, where two of the folds contact at their outer edges to form a sealed bottom surface. Become.
[0170]
The fold line 109 'between the flap 104 "' and the corresponding fold is cut in advance.
[0171]
The second cut member 103 has four rectangular flaps, hereinafter referred to as panels, in order to make the distinction from the flap of the first cut member more clear.
[0172]
That is, it is connected to one first central rectangular panel and three secondary rectangular panels 111, 112 and 113 connected to each other by third fold lines 114 and 114 ', ie, to the central panel 110 on both sides. An end panel 111 connected to the other side of the panel 112 by two connected panels and a pre-cut fold line 114 ′.
[0173]
The cut member 103 is connected to the adjacent panel by fifth fold lines 116 and 116 ′ perpendicular to the first line 114 to form a box lid 115 ′ intended to form a first series of folds 108. The panel 111 and its folded joint fold line 116 'are pre-cut.
[0174]
Note that an end tab 113a is provided by a pre-cut fold line 114 'connected to the end panel 113 only over a portion of its height on the fold line 116 side.
[0175]
The tab 113a is installed on the same side as the tab 104a, and its length is equal to, for example, the height of the panel 113 shortened by a length equal to or slightly longer than the tab 104a.
[0176]
The tabs 104a and 113a can also be peeled off in accordance with the present invention so that they are on the same side but do not overlap each other (see FIG. 15) so that they are closed again on the wall facing the formed cut member. It is equipped and arranged.
[0177]
Advantageously, the fold lines 114, 114 'and 105, 105' of the two cut members are parallel and offset in a state arranged to absorb the thickening of the cardboard during folding.
[0178]
It should be noted that the tray has two pre-cut portions, for example oval, in the form of closure lines 120 and 121 positioned completely away from the edges 107, 107 'of the flaps 104, 104'. .
[0179]
Accordingly, with reference to FIGS. 16 and 17, the tray comprises a first set of folds 108 forming the bottom surface connected to the corresponding flaps by pre-cut fold lines 109 and 109 '.
[0180]
Similarly, the second cut member 103 includes four rectangular folds 119, one of which is connected to the corresponding panel by a fold line 116 that is pre-cut.
[0181]
A trapping orifice 122 is provided at the level of the fold line with the central panel so that when the case is closed and glued, the wall is grabbed and the entire front face of the case is stripped along the arrow 123 with a monoblock It becomes possible.
[0182]
For example, a tray that can be grasped on the other side, for example by a handle 124 (cut-out), can then be removed as described above and then positioned on the other side of the first peelable set. The upper part that can be captured by the folded lower part can be removed.
[0183]
16 and 17 represent horizontal adhesive lines. Here, the flap 104 ″ is bonded onto the vertical panel 111.
[0184]
The pre-cut portions 120 are located near the center of the tray, thus avoiding the opening in the absence of side folds that hold the tray in a normally good position.
[0185]
Portion 120 may likewise advantageously be open-lined.
[0186]
18 includes a first element 131 that forms a tray and a second element 132 that forms an upper portion, the fold 133 of which is open to allow filling of the formed case. An eight-sided case 130 according to one embodiment is represented.
[0187]
This case, according to embodiments of the invention described herein, is rigid and foldable once the tabs are glued onto the facing walls, and stripping the surface 38 with chamfered corners. Comprising pre-cut fold lines 134, 135, 136, and 137.
[0188]
For example, on both sides in the panel of the second element 132, a cutout 139 is provided at the level of the upper part of the tray and slightly above it, so that its decoupling in relation to the first element The subsequent extraction of the second element is facilitated.
[0189]
FIG. 19 shows an embodiment of the first cut member 141 and the second cut member 142 of the assembly according to the present invention that makes it possible to obtain an 8-sided case of the same type as that shown on FIG. Was expressed.
[0190]
The first cutting member 141 comprises a series of eight flaps 143 and rectangular adhesive tabs 144 (the flaps and tabs are connected to each other by fold lines 145 and 145 'parallel to each other), ie four main flaps. 146, 147, 148 and 149 and four intermediate flaps 150, 151, 152 and 153.
[0191]
Main flaps 146, 147, 148 and 149 are each connected to a series of folds 155 by second fold lines 154 and 154 ', said second fold line being perpendicular to the first fold line.
[0192]
One of the two folds has a substantially rectangular shape, and its two side surfaces are at least partially inclined from the second fold line toward the outside of the fold, and the second fold is formed. Lines 154 and 154 'are substantially aligned with each other or fully aligned.
[0193]
The other two folds are rectangular.
[0194]
More precisely, the main flap has two rectangular flaps: a first small rectangular central flap 147 and a second large rectangular flap 149 positioned on one end side, and a 2 in the form of a generally right trapezoid. It consists of a first flap 146 and a second flap 148 that are symmetrical in relation to one main flap, both small flaps 147 and have oblique side surfaces 146 ′ and 148 ′ directed outward and upward from the small rectangular flap 147, respectively. ing.
[0195]
The main flaps are separated by a rectangular or nearly rectangular secondary flap as described above, and the secondary flap lacks a fold.
[0196]
In accordance with an embodiment of the invention described more specifically herein, the main flap 146 can absorb thickening when forming a tray around the upper element of the case corresponding to the second cut member 142. And has a removable portion 156 that is extended or not extended by a cutout 157.
[0197]
The flap 148 itself also has one detachable portion 156 ', which in this embodiment is not necessarily extended with a cutout.
[0198]
Intermediate flaps 150 and 151 are connected to adjacent main flaps 146 and 148 by pre-cut fold lines 145 ', and the rectangular fold is connected to flap 154 by pre-cut fold lines 154'.
[0199]
The cutting member 42 comprises a series of eight rectangular flaps 160, 161, 162, 163, 164, 165, 166 and 167, ending with a rectangular locking tab 168.
[0200]
The flaps are connected to each other and to the tabs by third fold lines 169, 169 'that are parallel to each other.
[0201]
More precisely, these flaps are made up of four main flaps 160, 162, 164, 166 separated by two by three secondary flaps 161, 163, 165, and the last flap 166 has Is provided with an end flap 167 which is placed at the end of a series of flaps and connected to a rectangular tab 168 when the turn is flat, which flap 167 is glued onto the tab when the box is formed.
[0202]
The tab 168 is positioned on the side of the fold line 171 in relation to the flap 160 and its upper edge 171 ′ is within the extension of the fold line 171.
[0203]
The tab 168 extends, for example, over a fixed height that is arranged not to cover the tab 144 when the cutting member is assembled. This tab is, for example, equal to half the height of the flap 160, and the tab 144 has a height slightly less than this dimension.
[0204]
In the same manner as in the case of the cut member 141, the cut member 142 is positioned on the other side in relation to the series of folds 155, and a fourth fold line 171 perpendicular to the third fold line 169. , 171 'and a series of turns 170 connected to the main flap.
[0205]
This series of turns is, for example, identical to the series 155 described in connection with the cutting member 141.
[0206]
In the embodiment described here, the removable wall is constituted by the flap assemblies 161, 162, 163 for the second cut member and by the flap assemblies 150, 147, 151 for the first cut member. ing.
[0207]
These two assemblies are fixed together by adhesive and are connected by fold lines 145 'or 169' and 154 'or 171' pre-cut for adjacent main flaps and turns.
[0208]
It should be noted that the fold line 145 of the first cut member is advantageously provided in a state of being progressively shifted on the side opposite the flap 164 in relation to the fold line 169 of the second cut member to absorb thickening. Is installed.
[0209]
The deviation calculation is done in a known manner by adapting it to the 8 flap case.
[0210]
Portions 156 and 156 ′ and flap 147 are secured by adhesive (eg, “hot melt”) onto facing second cut member flaps 160 and 164 and 162.
[0211]
When the case is formed, the tab 144 is glued onto the flap 153, the tab 168 is glued onto the outside of the flap 168, and the folds 55 are glued together.
[0212]
20-23 illustrate another embodiment of the present invention.
[0213]
The first cut member 251 (see FIG. 22) has two octagonal or rectangular central flaps 252 with chamfered corners and two reconnected to the longitudinal edges of the central flaps by a first fold line 253 ′. It has a rectangular side flap 253.
[0214]
In this embodiment, the central flap 252 is connected on both sides by sixth fold lines 257 that are parallel to each other for adjacent folds, including one that forms a chamfered corner 258 of the tray (see FIG. 20). End folds 255 and 256.
[0215]
The second cut member 259 (see FIG. 21) itself has four rectangular main panels 260 and four intermediate panels 261 and opposing end intermediate flaps connected to each other by a fifth fold line 262 parallel to each other. It includes an end tab 263 for adhesion to the top.
[0216]
This cut member is also a side edge that starts at least partially inclined outwardly so that it is perpendicular to the corner chamfered when the case is formed for two of them facing each other. And comprises a set of substantially rectangular folds 264.
[0217]
Two opposing main panels (not adjacent) 260 each have, for example, a rectangular pre-cut portion 266 that is open-lined on its lower peripheral edge 265 and centered in relation to the associated panel. Comprising.
[0218]
The portion 266 is adapted to be adhered on the inner surface of the wall formed by the side flaps 253, and thus can be pulled out as shown in FIG. Here, the edge portion 265 is merged in relation to the first fold line 253 ′ connecting the center flap 252 and the side flap 253, or is shifted by the thickness of the cardboard or considerably shifted.
[0219]
A second fold forming the lid, just like the corresponding fold line of the tray 251 between the horizontal fold line 261 of the panel 260 with the upper fold and on the one hand between the lateral flaps 254 and on the other hand between the small end folds 255 and 256. The center panel 260 of the cutting member 259 and the vertical fold line of two adjacent chamfered corners are pre-cut according to the present invention.
[0220]
The resulting case 267 is advantageously mounted around a mandrel, and a second cut member 259 pre-bonded to the first cut member as shown in FIG. 23 is wound around the eight-sided mandrel. The first cut member is then pressed onto the mandrel bottom surface as the end folds 256 adhere by first pressing onto the chamfered corner formed by the intermediate flap 261 and then onto the adjacent side flap. (See FIG. 20).
[0221]
FIG. 24 shows a case 340 according to another embodiment of the present invention with a tray 302 of the type described above.
[0222]
The upper part 341 is here a monoblock and the only peelable surface is the peelable part of the lower part of the packaging material.
[0223]
FIGS. 25 and 26 of the case and FIGS. 27 and 28 of the cutting member are pre-cut portions 17 or 66 in which one 345 is at one end of the tray and three sides are free and the other 346 is free on two sides. Shows a case 342 that includes a tray 343 formed of a first cut member that includes two side flaps 344 each having two pre-cut portions 345 and 346 that are rectangular or substantially rectangular. Yes.
[0224]
The tray may have two side folds (not shown here) bonded to a first set of folds 347 or central side folds 348 and / or a single central side fold 348 (not shown). Embodiment).
[0225]
The fold or folds are connected to the corresponding flaps by pre-cut fold lines 349.
[0226]
Similarly, the second cut member 350 includes three rectangular folds 351 and 352 connected to the corresponding panel by a pre-cut fold line 353.
[0227]
A capture orifice 354 is provided at the level of the fold line with the central panel, so that the entire front face of the case can be stripped monoblock along arrow 355 when the case is closed and bonded.
[0228]
For example, a tray that can be gripped on the other side by a handle 356 can then be removed as described above, and then the folded lower portion on the other side of the first peelable set. The upper part that can be gripped by can be removed.
[0229]
Figures 25 and 26 represent horizontal adhesive lines. The fold 348 is glued onto the vertical fold 352 in exactly the same way as the central fold 351 of the panel.
[0230]
The pre-cut portion 345 is itself provided and glued considerably forward of the tray, thus avoiding opening in the absence of side folds that normally hold the tray in place.
[0231]
Figures 29-32 illustrate another embodiment according to the present invention.
[0232]
FIG. 30 shows a first cut member 343 identical to that described with reference to FIG.
[0233]
The second cut member 359 (see FIG. 29) has four rectangular panels 360 connected to each other by parallel third fold lines 361 and 361 ′, and one of them (363) is on the front surface of the packaging material. It consists of a pair of folds 362, 363, 364, 365 that are identical to each other and are connected to adjacent flaps 360 by fold lines 366 that are provided and pre-cut.
[0234]
The adjacent flap is itself connected to the adjacent flap by a pre-cut fold line 361 '.
[0235]
Again, the front surface formed by the panel 360 glued at the lower portion, for example, by a glue line 368 (see FIG. 32), on the flap center fold 348 has an arrow 369 taking into account the pre-cut fold line or ridge. Can be completely peeled off.
[0236]
FIG. 33 shows the formation of the packaging material according to the invention in a plurality of stages A to F, and then the first cut member 400 for forming the tray and the second cut member 401 capable of forming a lid. Fig. 4 shows another embodiment for a based display (stages GJ).
[0237]
The first cut member 400 comprises a series of three rectangular flaps 402, 403, 404 of large dimensions (content size) connected to each other by a first fold line 405.
[0238]
This series of flaps consists of two sets of rectangular folds 406 that are connected on opposite sides to the corresponding flaps by a partially pre-cut joint line 408 for the 406 set and by a vertical fold line 409 for the 407 set. And 407.
[0239]
More precisely, each of the 406 sets of folds each comprise a pre-cut adhesive lug 410 that can be positioned, for example, facing the center fold and remain adhered to the portion 411 facing the center fold. Comprising two side turns.
[0240]
The joint line between the center fold and the corresponding flap is, for example, in the form of Ω across the fold line with its apex on the flap 403 and the side branch in the fold.
[0241]
The folded set 407 itself comprises two lateral folds 412 with two open pre-cut portions 413, each at its outer end.
[0242]
The second cutting member 401 itself has three flaps, one first top flap 414 and two small side flaps 415 of the type described for example with reference to FIG. Each flap 414, 415 has two small rectangular folds 414 ', 414 "and 415', 415" on either side, and the folds 414 'and 415' are connected to the flap by a pre-cut fold line. .
[0243]
Here, the case formation will be described with reference to steps A to F.
[0244]
The blank or cut member 400 is flattened and then shaped by raising the side walls 402 and 404 (Step B) after pasting to form an open case 417 (Step C). The two sets of side folds 406 and 407 have a width equal to half of the contents 418 because the folds meet together to form a complete surface.
[0245]
At this time, the contents 418 (here, stacked rectangular boxes 419) are introduced into the case (step D), and then the cut member 401 is placed from above, and the flap 402 coincides with the upper edge of the contents. And the peripheral edge of the vertical wall formed by 404.
[0246]
At this time, the flap 415 and the folds 414, 414 ″, 415 ′, 415 ″ are folded and bonded onto the upper edge of the case 420 thus closed (step F).
[0247]
The wall 421 is stripped off during its display, but this is made possible by pre-cut fold lines and / or joint lines.
[0248]
Next, a lid portion that is formed by the blank 401 and forms a tray that becomes a lower portion on the shelf is pulled out (step H). This is possible thanks to the unintegration of the pre-cut portion 416 glued on the walls 402 and 404.
[0249]
Thereafter, the upper portion 422 is removed to the same side as the tray and the contents 418 are thus released on the shelf.
[0250]
34 and 35 show another case accommodation method according to the present invention, which in turn utilizes the principle of wrapping around the contents 500.
[0251]
The lower portion or tray 501 is of the type described with reference to, for example, the tray 36 of FIG.
[0252]
This is pre-glued and then formed, for example, in advance or also wrapped around the contents 500.
[0253]
Similarly, the lid-forming portion 502 includes three large flaps 503, 504, 505, two flaps 504 forming the top surface of the lid and two rectangular side flaps 503, 505 having a height size of the contents 500. Including.
[0254]
The flap 504 is connected to the flap 503 by an Ω-shaped pre-cut joint line 506 in a manner similar to the cut member 400 described with reference to FIG.
[0255]
The flap 505 has a pre-cut portion 507 with a paste on the bottom of the type described for the flap 42 of FIG.
[0256]
It should be noted that the large flap 503 includes, on both sides, two folds 508 and 509 that are rectangular in size with the dimensions of the height of the tray wall, and these folds themselves have a width equal to, for example, the content portion. The folds 510 provided with rectangular folds 510 and 511 and positioned on one side of the flap 504 are connected by a fold line 512 that has been cut in advance.
[0257]
The cut member 502 is wrapped around the contents to form a case 514 once adhered to the tray by the lower portions of the flaps 504 and 505 and in one embodiment by the pre-cut portion 513 of the tray.
[0258]
Referring to FIG. 35, wall 515 is stripped in a manner similar to that described with reference to FIG. 34, then tray 516 is removed, and lid 517 is removed to fully release the contents. Is done.
[0259]
FIG. 36 shows a perspective view of an overall view of a machine 1150 according to one embodiment of the present invention.
[0260]
More precisely, referring also to FIG. 37, the machine 1150 includes a support frame 1151, a first supply assembly 1152 of a cutting member 1153 to form a tray and an upper portion of packaging material according to the present invention. It has a second supply assembly 1154 of cut members 1155 for forming.
[0261]
These replenishment performing assemblies are known per se, the platform 1156 on which the cut members are grasped one by one through the suction suction cups, and then the cut member assemblies according to the invention are formed thereon. It is possible to tilt these cutting members upward.
[0262]
More precisely, referring to FIG. 37, the lower cut member 1153 is first laid out flat after it is first withdrawn from the associated supply assembly.
[0263]
Thereafter, the pre-cut portion is glued, and the second cut member 1155 for forming the assembly is then picked up by the tilting replenishment system 1154 with a suction cup and placed accurately, and then the first The first cut member is thus brought into an integrated state by bonding using only the previously cut portion.
[0264]
The cut member assembly thus formed is then placed horizontally under a parallelepiped mandrel 1160, for example at some distance from this mandrel, for example via transfer means 1158 comprised of a shuttle loop belt 1159. (FIG. 38).
[0265]
During transfer, the end wrap 1161 and the second pre-cut portion are glued by means of a vertical injection “hot melt” glue gun type means 1162.
[0266]
Thereafter (for example) the pressure on the mandrel is applied to the central flap of the second cutting member by the method described therein, for example with reference to the device described in EP 0,468,860. Added.
[0267]
Similarly, the cut member assembly is then wound around the mandrel via the tilt arm system 1163 (see FIG. 39), and the flaps and / or panels of the cut member are applied over the mandrel 1160 via the bush plate 1164. Thus, the case is partially formed.
[0268]
At the same time, the turn for forming the side surface of the entire case formed is pressed onto the bottom surface of the mandrel via the air cylinder 1165.
[0269]
Thus, once the case is formed, it is ejected to form a fillable case from the side.
[0270]
The steps of the method according to one embodiment of the present invention will now be described with particular reference to FIGS.
[0271]
The cutting member is placed in a storage magazine constituted by a belt conveyor.
[0272]
The first bottom cut member 1153 (tray) and the second main body cut member 1154 (upper portion) are lifted at this time.
[0273]
Thereafter, the second cut member 1154 is positioned between the pusher and the movable stopper (not shown).
[0274]
At this time, the second cut member is transferred onto the bottom stopper and placed on the first cut member by a connecting rod / crank system (not shown).
[0275]
During this transfer, the joining zone, here the first precut part belonging to the first cutting member, is glued from above.
[0276]
Thereafter, pressurization (press 1157) and removal of the stopper are performed at the joint level.
[0277]
The transfer of the cut member assembly thus integrated is then carried out under the mandrel 1160 thanks to the belt 1159.
[0278]
During this transfer, the cut member assembly is turned up and pasted onto the second pre-cut joint (gluing machine 1162).
[0279]
Thereafter, the case is three-dimensionalized by raising the covering arm, pressurizing the lower hot press 1166, pre-folding the external joint panel of the first cut member on the second cut member, and then simultaneously folding the entire longitudinal turn And finally, folding back and pressing and joining panels are performed.
[0280]
Thus, the case is folded in reverse to become three-dimensional.
[0281]
Finally, the discharge of the packaging material thus formed is initiated, for example by means of a cylinder inside the mandrel.
[0282]
Of course, other types of mandrels may be utilized, for example arranged for lifting from above and below.
[0283]
In fact any lifting movement (linear movement by cylinder or rotational movement by belt system) is possible.
[0284]
The accuracy of these types of magazines is then ensured by a reciprocating motion type, ie a type of adjustment that allows the pick-up zone to be adjusted according to the installation position.
[0285]
This type of lifting magazine is also available for all types of coatings, including coatings around the product itself (in Anglo-Saxon terminology "wraparound" technology).
[0286]
Of course, and as will be appreciated from the foregoing, the present invention is not limited to the more specifically described embodiments. On the contrary, the present invention provides a cutting member from any variant, in particular a variant in which the two cutting members are folded and glued flat to each other or from the assembly already glued via several pre-cut parts. Includes variations such as tunnels.
[Brief description of the drawings]
FIG. 1 is a perspective view of a case according to a first embodiment of the present invention with a strip.
FIG. 2 is a perspective view of the lid of the case of FIG. 1 after stripping the first lateral sidewall and removing the tray.
3 is a plan view of a de-integrated cut member assembly that makes it possible to obtain the same type of case as in FIG.
FIG. 4 is a plan view of a cut member assembly according to another embodiment of the present invention showing three variations of a partially pre-cut upper joint line.
FIG. 5 is a schematic side view showing unpacking of the case of FIG. 1 with a band.
6 is a schematic side view showing unpacking of the case of FIG. 1 with a band.
FIG. 7 shows an embodiment of a case unpacking method according to the present invention.
FIG. 8 shows an embodiment of a case unpacking method according to the present invention.
FIG. 9 shows an embodiment of a case unpacking method according to the present invention.
FIG. 10 shows an embodiment of a case unpacking method according to the present invention.
FIG. 11 shows an embodiment of a case unpacking method according to the present invention.
FIG. 12 shows an embodiment of a case unpacking method according to the present invention.
FIG. 13 is a plan view of a blank assembly according to an embodiment of the present invention corresponding to FIGS.
FIG. 14 is a perspective view of a cut member assembly according to another embodiment of the present invention with four flaps prior to assembly.
15 is a perspective view of a box, a lid, and an open bottom surface obtained by using the cut member of FIG.
FIG. 16 is a perspective view of FIG. 15 according to the present invention after bonding.
FIG. 17 shows the case of FIG. 16 during various stages of its unpacking.
FIG. 18 shows a packaging case with eight sides according to another embodiment of the present invention.
FIG. 19 is a plan view of two cut members enabling the case of FIG. 18 to be obtained.
FIG. 20 shows in perspective view another embodiment of a case with eight sides according to the present invention.
FIG. 21 shows a cut member assembly corresponding to the case of FIG. 20 before and after flat joining.
22 shows a cut member assembly corresponding to the case of FIG. 20 before and after flat joining.
FIG. 23 shows a cut member assembly corresponding to the case of FIG. 20 before and after flat joining.
FIG. 24 shows in perspective view another embodiment of a display case according to the present invention having a small peelable surface.
FIG. 25 shows a perspective view of another embodiment of a display case according to the present invention during different stages of its unpacking.
FIG. 26 shows a perspective view of another embodiment of a display case according to the present invention during different stages of its unpacking.
FIG. 27 shows first and second cut members corresponding to the cases of FIGS. 25 and 26, respectively.
FIG. 28 shows first and second cut members corresponding to the cases of FIGS. 25 and 26, respectively.
FIG. 29 shows a variation of the second and first cut members, respectively, corresponding to another case according to the present invention.
FIG. 30 shows a variation of the second and first cut members, respectively, corresponding to another case according to the invention.
FIG. 31 shows a perspective view of an embodiment of a display case according to the present invention corresponding to the cut member of FIGS. 29 and 30 during different stages of its unpacking.
32 shows, in perspective view, an embodiment of a display case according to the present invention corresponding to the cutting member of FIGS. 29 and 30 during different stages of its unpacking.
FIG. 33 is a schematic perspective view of three-dimensional, filling and display packaging material according to another embodiment of the present invention.
FIG. 34 is another schematic perspective view of three-dimensional, filling and display packaging material according to another embodiment of the present invention.
FIG. 35 is another schematic perspective view of three-dimensional, filling and display packaging material according to another embodiment of the present invention.
FIG. 36 is a schematic perspective view of a first embodiment of a machine according to the invention.
37 is an exploded perspective view of a first portion of the machine of FIG. 36. FIG.
FIG. 38 is a side view of a mechanical block diagram illustrating different stages of an embodiment of a method according to the present invention.
FIG. 39 is a perspective view of a second portion of the machine of FIG. 36, showing wrapping around the mandrel and wrapping on the bottom surface of the mandrel before discharging the case.
FIG. 40 is a perspective view of a second portion of the machine of FIG. 36, showing wrapping around the mandrel and wrapping on the bottom surface of the mandrel prior to case discharge.

Claims (49)

Two cut members made of corrugated cardboard material, i.e. first cut members (13, 31, 62, 102, 131, 141, 251, 302, 343, 400, 501) forming one tray (12); A two-part packaging case comprising second cut members (21, 40, 93, 103, 142, 259, 350, 359, 401, 502) forming a lid (3) mated with the tray ( 1, 60, 106, 130, 267, 340, 342, 420, 514) are arranged to be captured by the user and allow the user to strip it in relation to the rest of the case Partially pre-cut joint lines (7, 8, 9; 44, 44 ', 44 ", 38, 52; 71, 80; 109', 114 ', 116'; 1 4,135,136,137) by having a first transverse side wall which is connected to the rest of the case,
-And one or more other side walls (15, 20; 64, 68; 104, 104 ') of the tray to release the integration between the walls by manually pulling them apart perpendicular to the walls. One or more partially pre-cut portions (16, 17; 46; 66; 120, 120 '; 156, 156';266; 345, 346; 416) and / or one or more adhesion points Only by being respectively secured to one or more other side walls of the lid,
Packaging case characterized by.   Case according to claim 1, characterized in that the first lateral side wall is formed by adhesion of the two first side walls (5, 6; 70, 79) of the lid and tray, respectively. .   3. A case according to any one of the preceding claims, characterized in that a partially pre-cut upper joint line (44 ") between the first side wall of the case and the lid is on the lid. .   A partially pre-cut upper joint line (7, 44) between the first side wall and the lid of the case is on the first wall (6, 43) and thus even after stripping, the upper band (26 The case according to claim 1, wherein the case is left in an integrated state with the lid.   3. A top pre-cut joint line (44 ') on the lid and the first lateral side wall of the case coincides with a ridge on the top surface of the lid. The case described in the section.   6. The first side wall capture means (7 ') of the case including a handle constituted by a hollow portion centered on the upper joint line (7) of the wall. The case according to any one of the above.   The one or more partially pre-cut portions (46) and / or the point of attachment of the second lateral sidewall (42) of the case opposite the peelable first lateral sidewall (43) The case according to claim 1, wherein the case belongs to any one of the above.   The case is bonded to at least two partially pre-cut portions (16, 17, 66; 120, 120 '; 156'; 345, 346; 416), each positioned on either side on the longitudinal side wall of the case It has a point, The case of any one of Claims 1-7 characterized by the above-mentioned.   Case (1, 60) according to any one of the preceding claims, characterized in that the lid is engaged in the tray.   10. A case according to any one of the preceding claims, characterized in that the part (16, 17; 66) that is partly pre-cut belongs to the tray.   11. The one or more partially pre-cut parts (16, 17; 46; 66) are pre-cut along the open line. Case.   11. A case according to any one of the preceding claims, wherein one or more portions of the flap that have been partially pre-cut are cut along a closing line.   The first cut member (13, 31, 62) is a first against a series of three flaps, ie, two side flaps (15, 34, 64) that at least partially form the longitudinal side walls of the tray. Comprising a central flap (14, 32, 63) forming a bottom surface of the tray connected laterally by a fold line (33), said series of flaps being at least one perpendicular to the first fold line Including at least one lateral wrap (5,70) positioned on one side of the flap connected by a second partially pre-cut fold line (9,9 ', 38,71) of the book 13. Case according to any one of the preceding claims, characterized in that the lateral fold (5, 70) at least partly forms a first lateral side wall of the tray.   14. Case according to claim 13, characterized in that each side flap (15) comprises two partially pre-cut portions (16, 17).   The second cutting member has three panels (41, 42, 43; 74, 75), ie one for each through the one or more partially pre-cut side portions (46) or the bonding points. For the other side, a third fold line (42, 43; 75) is formed with respect to the two side panels (42, 43; 75) forming at least a part of the side wall of the case integrated with the first cut member via an adhesive line. A rectangular central panel (41, 74) forming the upper surface of the case lid connected laterally by 42 ', 44'). The case described in the section.   A second cut member (73) is on both sides of the panel connected by a fourth fold line positioned facing the second fold line (71, 72) of the first cut member. 16. Case according to any one of the preceding claims, characterized in that it has two sets of side turns (76, 77, 78, 79).   At least four sheets in which the second cut member (21) is connected to each other by a fourth fold line (23, 23 ') parallel to the second fold line (9') of the first cut member Panel (22) and end bonding tab (22 '), the four panels including a pair of folds (24, 25) opposite the first cut member (13). The case according to claim 1, wherein the case is formed.   Each flap (32, 34; 63, 64) of the first cut member is folded back in the lateral direction, i.e. the central turn (70) connected to the central flap and forming a partially pre-cut part of the bottom surface and the side 18. A case according to any one of the preceding claims, comprising two side turns connected to a flap and bonded onto the central flap.   A series of four main flaps (104, 104 ', 104 ", 104"'; 110, 111, 112, 113; 146, 147, each cutting member ending with an identification tab (140; 130; 153; 168) 148, 149; 160, 162, 164, 166), wherein the main flap and the tab are parallel to each other in a first fold line (105, 105 '; 114, 114'; 145, 145 '; 169, 169 ′) directly or through secondary flaps (150, 151, 152, 153; 161, 163, 165, 167), each cut member being further connected to the bottom of the tray, one of which The other is intended to at least partially form the upper surface of the upper portion of the case, and is perpendicular to the first fold line. A first side located on one side of the main flap connected to the series of main flaps by two fold lines (109, 109 '; 116, 116'; 154, 154 '; 171, 171') 13. Case according to any one of the preceding claims, characterized in that it comprises a folded assembly (108, 115; 155, 170).   The second element locking tab (113a, 168) extends above the first element locking tab along only a portion of the side edge of the flap to which it is adjacently connected. The case according to claim 19.   Since the main flaps (146, 147, 148, 149; 160, 162, 164, 66) form an 8-sided case with chamfered corners, secondary flaps (150, 151, 152, 153; 161, The case according to any one of claims 19 to 20, characterized in that they are separated from each other by 163, 165, 167). Cut member assembly for forming a case, first cut intended to form two cut members, i.e. trays, each formed by one flap or central panel and a plurality of side flaps or side panels A second cut member for forming a member and a case lid;
The first cut member (13, 31, 62) is connected to the central flap and belongs to one of the cut members and is bonded to another cut member at least one partially pre-cut portion At least one side flap (15, 64) arranged to be integrated into an adjacent side panel (22, 42, 75) of the second cutting member via (16, 17; 46: 66) or A second lateral turn and
A first lateral fold (5,70) connected on the other side to the central flap (14,32,63) by a partially precut joint line (9,9 '; 38,71). And the side panel of the second cut member is adapted to be bonded to the first lateral fold, and is connected to the center panel by a partially pre-cut joint line, The first lateral fold and the side panel are arranged to be captured by the user, thus connected to the rest of the assembly by a pre-cut joint line;
A cut member assembly characterized by:   Each of the side flaps (34, 64) of the first cut member is connected to the corresponding flap by a fold line partially pre-cut on the side of the first lateral fold (5, 70), respectively. The cut member assembly according to claim 22, comprising a fold.   The first cut member includes at least one partially pre-cut fold, and the second cut member is attached to its two adjacent panels (22) by a partially pre-cut fold line (23 '). In contrast to the panel intended to form the first bottom vertical wall of the case by means of a fold line that is connected and partially pre-cut, via a part of the panel that forms the strip or directly 23. A cutting member assembly according to claim 22, characterized in that it comprises at least four panels (22) including one with folds coupled to the cutting member assembly. A series of four main flaps (104, 104 ', 104 ", 104"'; 110, 111, 112, 113, 143; 160, 162, each element ending with one locking tab (104a, 113a) 164, 166), wherein the primary flap and the tab are parallel to each other via secondary flaps (150, 151, 152, 163; 161, 163, 165, 167) or directly Connected to each other via a first fold line (105, 105 '; 114, 114'; 145, 145 '; 169, 169'), each element further being on the bottom of the tray and one on the other Is intended to at least partially form the upper surface of the second element, and a second fold line (109, 109 '; 116, perpendicular to the first fold line). 16 '; 154, 154'; 171, 171 ') a first laterally folded assembly (108, 115; 155, 170) arranged on one side of this main flap, connected to said series of main flaps The two elements comprise at least one flap portion (120; pre-cut in one of the main flaps (104; 146, 148) of the first element called the outer flap. 156, 156 ′), which are arranged to be connected to each other, said part being fixed to the corresponding main flap facing the second element called the internal flap,
And the transverse flap (104 "') of the first cut member and the transverse flap (111) of the second cut member are pre-cut joint lines (109', 105 ';114', 116 '; 154 ', 145'; 169 ', 171') connected to the corresponding adjacent flaps and turns,
23. A cutting member assembly (1) for a packaging case according to claim 22.   The one or more pre-cut bond lines that will correspond to the bond lines of the first side wall of the case once formed with the lid are positioned on the lid. The cut member assembly according to any one of 22 to 25.   The pre-cut upper bond line that once corresponds to the bond line of the first side wall of the case coincides with the upper edge of the case once formed. Item 26. The cut member assembly according to any one of Items 22 to 25.   28. A cutting member assembly according to any one of claims 22 to 27, wherein the pre-cut one or more flap portions (120; 156, 156 ') are cut along a closing line.   The cut member assembly according to any one of claims 22 to 27, wherein the one or more pre-cut flap portions are cut along an open line.   The second element securing tabs (113a, 168) extend above only the first element securing tab and along only a portion of the side edge of the adjacent flap to which it is connected. The cut member assembly according to claim 25.   Since the main flaps (146, 147, 148, 149; 160, 162, 164, 166) form an 8-sided case with chamfered corners, secondary flaps (150, 151, 152, 153; 161, The cutting member assembly according to any one of claims 22 to 23, which is separated from each other by 163, 165, 167).   Three-dimensionalization is performed by wrapping two cut members that are pre-bonded together and integrated by at least one of the first parts around a volume of a predetermined dimension. The cut member assembly according to any one of claims 22 to 31.   The pre-cut portion starts obliquely from the joint between the first and second fold lines toward the outside of the first cut member, according to any one of claims 22 to 32. Cut member assembly (130, 142) according to clause.   The cut member assembly according to any one of claims 22 to 33, wherein the pre-cut portion belongs to the first cut member.   Aimed at forming the first cut member and the upper part of the case intended to form two cut members or trays, each formed by one central panel or flap and two side panels or flaps A second cutting member, the cutting member having its respective side panels and flaps belonging to one of the cutting members and being glued to another cutting member in advance 23. The cut member assembly for manufacturing a case according to claim 22, wherein the cut member assembly can be integrated with each other only through a cut portion.   A central flap of the first cut member includes a central fold in an extension of the bottom surface with two pre-cut bottom portions, each of the side flaps of the first cut member being the pre-cut bottom 36. A cutting member assembly according to claim 35, comprising side folds that can each be glued onto the portion.   A central panel of the second cut member includes a central turn in an extension of the panel with two pre-cut lid portions, and a side panel of the second cut member is the pre-cut lid portion 37. A cut member assembly according to any one of claims 35 to 36, including one each of side folds that can be bonded together.   Each of the first cut member and the second cut member includes one or more folded sets, each of which is connected to a corresponding flap and panel by a pre-cut folding line; 36. The assembly of claim 35.   The pre-cut side portion starts obliquely from the joint between the first and second fold lines toward the outside of the first cut member. The assembly according to claim 1.   The first cut member includes three pre-cut folds, and the second cut member includes a fold connected to a panel for forming the bottom surface of the case by a pre-cut fold line 1 36. The assembly of claim 35, comprising at least four panels, including one.   The first and second only using panels and / or folds which are respectively connected to the remaining part of the cutting member to which it belongs by means of only at least one precut part and by means of a partly precut joint line. A display tray which can be manually released from the upper part of the case by simply pulling one of the cutting members outwardly from the case near the pre-cut part, thus securing the two cut members together A method for producing a packaging case according to any one of claims 1 to 21, wherein the packaging case is formed. Two cut members made of corrugated sheet material, that is, a first cut member (3, 20, 37, 51, 69, 85, 96, 111, 130, 153) capable of forming a display tray and an upper portion of the case From the second cut member (4, 27, 45, 59, 72, 85 ', 100, 112, 123, 142, 155) that can be formed, a packaging case (1, 18, 36, 67, 68, 82, 91, 110, 118, 127) and one of the cutting members has at least two pre-cut portions (12, 24, 43, 66, 75, 76, 78, 84, 99, 115, 121, 128).
-Flatly glue the part,
-Affix one of said parts belonging to one of the cutting members flatly on the other part;
-Wrapping the cut member assembly thus integrated around a volume of defined dimensions;
-After that, after winding and folding around said volume, another part pre-pasted on another cut member is applied. -Means (162) for attaching the pre-cut parts (16, 17, 46, 66, 120, 120 ', 156, 156', 266, 345, 346, 416);
-The pre-cut portion with the fold line of one cut member installed in relation to the fold line of another cut member in order to allow winding around one volume of the prescribed dimension; Means (152, 154, 156) for positioning the cut members on top of each other so that the first of them can be glued onto the other cut member;
An application means (157) for fixing said first pre-cut part by gluing it onto another cut member;
Means for securing a wall or fold of one cut member to each other on the wall or fold of another cut member, said wall or fold being partly relative to the rest of its respective cut member Means connected by a pre-cut joint line;
-And means for forming a box (160, 164, 165) by wrapping and folding the cut member thus integrated around one volume of defined dimensions, for fixation only by gluing,
22. The packaging case production machine (150) according to any one of claims 1 to 21, characterized in that   44. Machine according to claim 43, characterized in that the volume of defined dimensions is a polygonal cross-section mandrel (160).   44. The machine of claim 43, wherein the machine is arranged such that a volume of defined dimensions is composed of the product to be packaged.   46. Machine according to any one of claims 43 to 45, characterized in that it has two supply magazines (152, 154) arranged on both sides of the machine for forming the cut member.   The lateral wall of the case, which is connected to the remaining part by a partially pre-cut joint line, is manually peeled off, and only at least one partially pre-cut part and / or one or more glues The case wall and lid that are integrated with the bottom only by points are released from the bottom by hand, the bottom is pulled horizontally to release the product on it, and then the contents product is completely released A method of unpacking the case and displaying the contents product, characterized by removing the lid. Two cut members made of corrugated sheet material, ie, a first cut member (13, 36, 62) capable of forming a tray (2) and a second cut member (21, 40) capable of forming a case lid (3) 73), and having a polygonal cross-section (1, 60) filled with a rigid or semi-rigid product (54, 82). Having a first lateral side wall (64, 81) connected to the rest of the packaging material by a partially pre-cut joining line that allows removal;
-Strip the first lateral side wall (4, 81) by hand at once,
-Vertical pulling manually un-integrates the walls of the rest of the tray from the walls of the rest of the lid, and these walls are pre-cut or partially by adhesive points that can be easily un-integrated. Fixed to each other only through the wall portions (16, 17; 46; 66)
-Pull the tray (2) horizontally to release it and remove it from the product on top;
-The lid (3) is then removed to completely release the content product;
A method characterized by.   The lid (3) has a strip (26) after stripping of the first lateral side wall (4), so that the lid (3) is swung upwards in relation to the product (54). 49. The case unpacking method according to claim 48, wherein the lid (3) is pulled horizontally after retracting.

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