Visibility packaging for energy storage element

Abstract

To provide a visibility packaging for energy storage elements.SOLUTION: The visibility packaging for energy storage elements is formed by forming a back wall and a front wall of the visibility packaging from at least one blank made of sheet material, the front wall being spaced apart from the back wall to form a receiving space for the energy storage element, the front wall having at least one observation cutout, comprising at least one web, the web having a central top region fixed to a contact area of the back wall, the web and back wall together forming a K-shaped cross-section in the closed position, the web closing a removal opening of the receiving space, the back wall having at least one perforation, the perforation defining the contact area from the remainder of the back wall, enabling separation of the contact area from the back wall, the web being movable to a removal position by bending operation, and in the removal position, the top region of the web being spaced from the back wall, the web releasing the removal opening of the receiving space.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a visibility packaging for energy storage elements according to the preamble of claim 1, and to blanks for the production of such a visibility packaging. [Background technology]

[0002] Energy storage elements are often commercially available mass-produced items in retail and storage packaging. The packaging itself should be economical on the one hand and have an appealing appearance to provide an incentive to buy on the other. In this context, blister card-type packaging (which is generally formed by a transparent blister film composed of paperboard and plastic) is widely used, where the blister film allows the energy storage element to be seen.

[0003] European Patent Application EP 1 671 896 A1, for example, describes a blister pack for energy storage elements. The blisters form a plurality of individual chambers. The back blister card is made, for example, of paperboard. The rear blister card is broken as a result of the user pressing through the blister onto the energy storage element, thereby allowing the energy storage element to be removed. This type of variant (in which individual energy storage elements are extruded through the packaging) is also referred to as single press out technology. Here, a single energy storage element is generally extruded from an individual chamber.

[0004] However, such blister card-type packaging is not without problems in terms of disposability, since the film portion of the packaging in particular is rarely recyclable and generally poorly degradable. To provide a more disposable sales package, the sales package known from DE 4135468 A1 is based solely on two paperboard blanks, which form a carrier portion with side walls for receiving an energy storage element and an adapted outer shell with an observation window. This type of packaging has the advantage that the packaging is completely recyclable and therefore extremely environmentally friendly. Furthermore, individual energy storage elements can be removed, and the package can then be reclosed by pulling the carrier from the outer shell and pushing it back in. However, this operation is relatively cumbersome for the user.

[0005] Another type of packaging is known from European Patent Application EP 0 466 328 A2. This packaging, which is provided in particular for energy storage elements in the form of cylindrical round cells, is formed from a sheet blank composed of a durable, rigid material, in particular paperboard, in which a grooved region of V-shaped cross section is formed. Openings are provided in the blank and positioned so as to be located at opposite, completely oblique limb portions of the grooved region, the limb portions being in a V-configuration. The cylindrical round cells are inserted into these openings of the groove so as to be held by the limbs, preventing rotation of the cylindrical round cells. To be able to remove one or more round cells from this packaging, the packaging must be torn open. Summary of the Invention

[0006] In contrast, the present invention has the object of providing improved packaging for energy storage elements, packaging that can be disposed of in a more environmentally friendly manner. Furthermore, the packaging is intended to provide a practical solution for the removal and storage of the energy storage element. In particular, it is intended that reclosability be achieved in the packaging.

[0007] This object is achieved by a visibility packaging for an energy storage element having the features of claim 1 and by a blank for the visibility packaging having the features of the further independent claims. Preferred configurations of the visibility packaging and the blank are set out in the dependent claims. Specifically, the present invention provides the following configurations [1] to

[10] . [1] A visibility packaging (100; 200) for an energy storage element (3), comprising: (a) the visibility package (100; 200) is formed by forming a rear wall (1) and a front wall (2) of the visibility package from at least one blank constructed from a sheet material; (b) the front wall (2) is spaced from the rear wall (1) to form a receiving space (6) for the energy storage element (3); (c) the front wall (2) is provided with at least one observation cutout (4); (d) the front wall (2) includes at least one web (9); (e) the web (9) has a central top region (10) secured to the contact region (40) of the rear wall (1), the web (9) and the rear wall (1) together forming a K-shaped cross section in the closed position, the web (9) closing the removal opening of the receiving space (6); and (f) A visibility package, characterized in that the rear wall (1) has at least one perforation (30; 31; 32; 33), the perforation defining a contact area (40) from the remainder of the rear wall (1), the perforation making it possible to separate the contact area (40) from the rear wall (1) so that the web (9) can be moved to a removal position by a folding operation, in which the top area (10) of the web (9) is spaced apart from the rear wall (1) and the web (9) releases a removal opening in the receiving space (6). [2] The visibility packaging according to [1], wherein the sheet material is paperboard. [3] The visibility packaging according to [1] or [2], wherein at least one web (9) is an edge web, and preferably two edge webs (9) are provided. [4] Visibility packaging according to any one of [1] to [3], wherein the perforations (30; 31; 32; 33) are provided with at least one cutout (34; 35) adjacent to the perforations, in particular a semicircular cutout (34) or at least one edge cutout (35). [5] A visibility package according to any one of [1] to [4], wherein the visibility package (100) is formed from exactly one blank by folding along, in particular, parallel lines and adhesive bonding. [6] The visible packaging according to any one of [1] to [5], wherein the visible packaging (100; 200) is designed for packaging an energy storage element (3) in the form of a cylindrical round cell. [7] The visibility packaging according to any one of [1] to [6], wherein the visibility packaging (100; 200) is designed for arranging energy storage elements (3) in pairs, and each observation cutout (4) is assigned to a pair of energy storage elements (3). [8] The visibility packaging according to any one of [1] to [7], wherein the visibility packaging is designed for the arrangement of two or four energy storage elements (3). [9] The visible packaging according to any one of [1] to [8], wherein the visible packaging includes at least one energy storage element (3), preferably at least a pair of energy storage elements, particularly preferably one or two pairs of energy storage elements.

[10] A blank made of a sheet material for producing the visible packaging (100; 200) according to any one of [1] to [9].

[0008] The visibility packaging for an energy storage element according to the present invention has the following characteristics (a) to (e): (a) the visibility package is formed from at least one blank constructed from a sheet material by forming a rear wall and a front wall of the visibility package; (b) the front wall is spaced from the rear wall to form a receiving space for the energy storage element; (c) the front wall is provided with at least one observation cutout; (d) the front wall includes at least one web; (e) A web has a central top region secured to a contact region of the rear wall, the web and the rear wall together forming a K-shaped cross section in the closed position, the web closing the removal opening of the receiving space.

[0009] Furthermore, the visibility packaging according to the present invention is characterized by feature (f) immediately below: (f) the rear wall has at least one perforation, the perforation defining a contact area from the remainder of the rear wall, the perforation enabling the contact area to be separated from the rear wall so that the web can be moved by a folding operation to a removal position, at which a top area of ​​the web is spaced apart from the rear wall and the web releases a removal opening in the receiving space.

[0010] The above-described features of the visible packaging provide a package for energy storage elements, in contrast to conventional packaging, without the need to push the energy storage element through paperboard or tear the package open. Rather, the special configuration of the web(s), which together with the rear wall form a K-shaped cross section in the closed position, facilitates a mechanism by which the package can be opened for removal of the energy storage element and then reclosed. To this end, perforations in the rear wall of the package are separated upon initial actuation. This releases the contact areas of the web, which can then be lifted and pulled out of the K-shaped configuration. In this case, the receiving space for the energy storage element previously closed by the K-shaped web is opened so that one or more energy storage elements can be removed. The web can then be refolded back into its original K-shaped configuration in the manner of a snap-action fastener so that the receiving space can be reclosed.

[0011] The web forms a K-shaped cross section together with the rear wall in the closed position, and after detachment of the perforations on the rear wall, the web can be folded so that the top region of the web is separated from the rear wall, in which case the web can act like a bistable spring element. Preferably, in the closed position, the web is in a first stable state, and in the removal position, the web is in a second stable state. Preferably, the web is under tension between the two stable states.

[0012] In the case of visible packaging according to the invention, the energy storage element can be removed from the visible packaging and optionally pushed back into the visible packaging again. That is, for example, it is possible to put an already discharged battery back into the packaging in the opposite direction ("upside down") and safely store it in the reclosed packaging until it can be properly disposed of. Thus, in addition to being environmentally friendly with regard to the later disposal of the packaging, visible packaging according to the invention can offer convenient possibilities for organizing the handling of new and used energy storage elements.

[0013] As a result of the at least one observation cutout, the packaging according to the invention also allows for an attractive promotional presentation of the energy storage elements during their sale.

[0014] The central top region of the web that is secured to the contact region of the rear wall preferably constitutes a central region of the web that divides the web into two limbs. In the closed position, where the web and rear wall together form a K-shaped cross section, the limbs preferably form a V.

[0015] The central top region can form a flat region that is fixed to the contact region of the rear wall. For example, this flat region can have a substantially square shape, where the length of the sides of this square region corresponds approximately to the width of the web. This flat region can be made, for example, approximately 1 / 3 or 1 / 5 or less of the total length of the web. For example, adhesive bonding or an interlocking arrangement is suitable for fixing this central top region to the rear wall.

[0016] In another configuration, the central apex region can have a rectangular shape, where two sides of the apex region correspond to the width of the web and two other sides are shorter. Therefore, in this configuration, the contact region can be substantially narrower than the square contact region described in the previous paragraph. Fixation of the apex region to the contact region can also be achieved by adhesive bonding in this configuration. In particular, in this configuration, an interlocking arrangement can also be provided, which allows for linear contact regions oriented transversely to the longitudinal direction of the web in the longitudinal extent of the web.

[0017] The perforations can be directly adjacent to the contact area or can be located at a certain distance from the actual contact area where the web is fixed to the rear wall. As a result of the user removing the contact area by the perforations, the contact area is released together with the web fixed to it, and the web can therefore be folded up or down in the manner described above to open the receiving space and close it again.

[0018] In order to stabilize the snap-action fasteners that can be obtained with the web, it is generally advantageous for the sheet material used for the packaging to have a certain stiffness. Therefore, in a particularly preferred configuration of the visibility packaging according to the invention, the visibility packaging is characterized by the additional feature that the sheet material is paperboard.

[0019] In particular, for example, 100 to 1000 g / m 2 Suitable for this purpose is ordinary paperboard having a basis weight of, for example, 400 to 500 g / m 2 , e.g. 400g / m 2 or 425 g / m 2 A basis weight of is particularly preferred.

[0020] The thickness of the paperboard is preferably 0.4 to 0.8 mm, particularly 0.5 to 0.6 mm, for example 0.58 mm.

[0021] The bending stiffness of suitable paperboard materials may be, for example, 50 to 100 mN / m in the machine direction (MD), and 10 to 50 mN / m in the cross direction (CD).

[0022] For example, 425 g / m 2 In another preferred example, a 0.58 mm thick material with a basis weight of 400 g / m and a bending stiffness of 64.2 mN / m (MD) and 32.4 mN / m (CD) is suitable. 2 The bending stiffness is 83 mN / m (MD) and 26 mN / m (CD) and the thickness is 0.58 mm. In a particularly preferred configuration, recycled materials can be used as the paperboard material.

[0023] It is particularly preferred that the visibility packaging according to the invention is characterized by the additional feature that at least one web is an edge web, with two edge webs preferably being provided.

[0024] The edge-side arrangement of the web(s) provides an edge-side opening mechanism for the receiving space in the above-described manner. In this case, it is particularly advantageous if two edge-side webs are provided that can open and close the receiving space in the above-described manner, so that the energy storage element can be removed and / or pushed back on both sides. Depending on the application, it is also possible for the visibility packaging to be opened on only one side and possibly closed again.

[0025] Furthermore, it is also possible to provide at least one further web, which is not located at the edge but rather within the receiving space, thus allowing the receiving space to be divided into several compartments. In particular, in such an embodiment, several observation cutouts can be provided on the front wall of the visibility package, said observation cutouts allowing the observation of individual energy storage elements or energy storage elements arranged in groups. The at least one further web, in particular several further webs, in this case preferably formed by sheet portions between the individual observation cutouts, is preferably fixed by its central top region, like the edge web, in each case to the contact region of the rear wall and forms a K-shaped cross section together with the rear wall. The at least one further web, in particular several further webs, divides the receiving space into individual compartments for receiving at least one of the energy storage elements in each case.

[0026] In some embodiments, in the case of webs dividing the receiving space, perforations are also provided in the rear wall to allow the contact areas of this web to be separated. In this embodiment, the webs dividing the receiving space can be moved by a folding operation in the manner of a snap-action fastener. This configuration is particularly advantageous, for example, if the visibility packaging is provided with six, eight, or perhaps more energy storage elements, which are preferably arranged in pairs. However, it is also possible to do without the perforations allocated to the webs dividing the receiving space, so that these webs cannot be moved in an unbreakable manner.

[0027] The contact area where the apex region of the web is fixed can be separated from the rest of the rear wall of the visibility packaging by a perforation. The perforation can be designed in various ways. In particular, a substantially rectangular area can be separated from the rear wall by a perforation. Regarding the design of the perforation, it is important in this case that the area that can be separated by a perforation is the area where the top region of the web is fixed.

[0028] When perforations are mentioned in this application, this generally refers to a linear weakening of the rear wall. Along this line of weakness, the rear wall is sensitive to mechanical loads, in particular compressive loads perpendicular to the surface of the rear wall and tensile loads parallel to the rear wall. The perforations preferably form predetermined separation points in the form of frames that define contact areas.

[0029] For example, the perforations can be formed by straight or dot-shaped punched-out portions or openings, or a combination of such lines and dots. The perforations are intended to allow the user to easily separate the separable areas and to avoid unintentional damage to other areas of the rear wall.

[0030] For the shape of the perforations, i.e. the frame formed by the perforations, various geometric shapes can be selected, for example rounded or angled shapes in addition to rectangular shapes.

[0031] If the perforations are located in an edge region of the rear wall, the area with the perforations can be defined on one side by the edge of the rear wall, with the remaining three sides in the example of a generally rectangular perforated portion being formed by the actual perforations.

[0032] In a particularly preferred configuration, the visibility packaging according to the invention is characterized by the additional feature that the perforation is assigned at least one cut-out adjacent to the perforation, in particular a semicircular cut-out or at least one edge cut-out.

[0033] The cutout can be configured in particular so that it allows engagement with a finger or fingernail, so that the perforation can thereby be manually detached in a particularly simple manner. This measure further enhances the user-friendliness of the visibility packaging according to the invention. If a perforation is provided, for example, to release an edge web, in the case of adjacent cutouts, this can be located on the edge of the perforation opposite the respective edge of the packaging.

[0034] Therefore, the cutout is preferably located opposite the edge of the package to allow a comfortable engagement for the user to attach and detach the perforation. In other configurations, the perforation can be extended by small edge cutouts, for example two cutouts, which also make it easier for the user to engage and detach the perforation from the side.

[0035] In a particularly preferred configuration of the visibility package according to the invention, the visibility package is characterized by the additional feature that the visibility package is formed from exactly one blank by folding along parallel lines and adhesive bonding.

[0036] The production of a visibility package from exactly one blank is highly advantageous in terms of production technology, since production is thereby simplified: in a preferred embodiment, in this case, only one part needs to be folded along corresponding parallel lines and then adhesively bonded.

[0037] However, it is entirely possible for the above-described visibility packaging according to the present invention to be manufactured from, for example, two blanks, in which case a further adhesive bonding step or alternative fastening step is generally required to produce the visibility packaging having the rear and front walls and the receiving space formed thereby.

[0038] It is particularly preferred that the visibility packaging according to the invention is characterized by the additional feature that the visibility packaging is designed for packaging energy storage elements in the form of cylindrical round cells.

[0039] Cylindrical round cells are very widely used as energy storage elements. Therefore, the highly economical manufacturing efficiency of the visibility packaging according to the invention and its environmentally friendly disposability offer particular advantages over these mass-produced products. In principle, the visibility packaging according to the invention is also suitable for other forms of energy storage elements, for example, for prismatic energy storage elements.

[0040] The visibility packaging according to the present invention can be adapted to various shapes and sizes of the energy storage elements to be packaged by corresponding adaptation of the dimensions. The visibility packaging according to the present invention is particularly suitable for receiving the widely used cylindrical round cells of size AA or AAA. Energy storage elements having a standard AA size have a diameter of 13.5 mm to 14.5 mm and a height of 49.2 mm to 50.5 mm. Energy storage elements having a standard AAA size have a diameter of 9.5 mm to 10.5 mm and a height of 43.3 mm to 44.5 mm. However, the visibility packaging according to the present invention is not limited to packaging such cylindrical round cells.

[0041] In a particularly preferred and advantageous embodiment, the visibility packaging according to the invention is characterized by the additional feature that the visibility packaging is designed for arranging energy storage elements in pairs, with each observation cutout being assigned to a pair of energy storage elements.

[0042] This embodiment is particularly advantageous since pairs of energy storage elements are often used for various applications. Therefore, two energy storage elements, or perhaps even four energy storage elements, are often required at the same time. It is therefore particularly advantageous if two or pairs of energy storage elements can be simultaneously removed from, or perhaps returned to, the visibility packaging according to the present invention. In this configuration, each observation cutout is assigned to a pair of energy storage elements.

[0043] In the case of a package having more than two energy storage elements (i.e., for example, four energy storage elements), it is particularly advantageous if the pairs of energy storage elements are separated from each other by further webs inside the receiving space. As already mentioned further above, these internal webs, which also form a K-shaped cross section together with the rear wall, can be provided with perforations, just like the edge web(s), and in a preferred embodiment can be operated in the manner of a snap-action fastener.

[0044] However, it is also possible to prevent these inner webs from being operable in the manner of a snap-action fastener by not providing corresponding perforations. This configuration may be preferable, for example, if two pairs of energy storage elements are arranged in the visible packaging according to the invention. In this case, the two pairs of energy storage elements can be removed by means of foldable webs on the edge sides in each case. The web located in the center of the receiving space between the two pairs of energy storage elements is preferably designed not to be foldable, since the energy storage elements are removed via the edge.

[0045] It is particularly preferred that the visibility packaging according to the invention is provided for an arrangement of two or four energy storage elements. However, it is entirely possible that the visibility packaging is provided for packaging more than four energy storage elements. Furthermore, it is of course possible that an even number of energy storage elements are packaged in the visibility packaging according to the invention.

[0046] The visibility packaging according to the invention is preferably characterized by the additional feature that the visibility packaging comprises at least one energy storage element, preferably at least one pair of energy storage elements, particularly preferably one or two pairs of energy storage elements.

[0047] Particularly advantageously, the energy storage element(s) contained in the visible packaging are cylindrical round cells as described above, especially of AA or AAA size.

[0048] In this context, primary alkaline manganese cells are particularly preferred, but it is also possible in principle to include secondary cells, such as lithium-ion cells or nickel-metal hydride cells, in the visible packaging. Such energy storage elements are required for a large number of applications, for example, for household use or other applications for everyday needs. The visible packaging according to the invention is particularly suitable for the presentation and packaging of these mass-produced products.

[0049] The present invention further includes corresponding blanks constructed from sheet material, preferably paperboard blanks, from which the above-mentioned visible packaging can be manufactured. For further details of these blanks, reference is made to the above text and the following description of exemplary embodiments in conjunction with the drawings.

[0050] Further features and advantages of the invention become apparent from the following description of exemplary embodiments in conjunction with the drawings, in which the individual features can in each case be implemented alone or in combination with one another. [Brief explanation of the drawings]

[0051] [Figure 1] FIG. 1 shows a perspective view of a first embodiment of a visibility package according to the present invention having four inserted energy storage elements. [Figure 2] FIG. 2 shows a perspective view of a second embodiment of a visibility package according to the present invention having four inserted energy storage elements. [Figure 3] FIG. 3 shows an exemplary configuration of the perforations. [Figure 4] FIG. 4 shows a further example of a perforation. [Figure 5] FIG. 5 shows a further example of a perforation. [Figure 6] FIG. 6 shows a further example of a perforation. [Figure 7] FIG. 7 shows four exemplary configurations of the rear wall or rear side of a visibility package according to the invention, in each case having two edge perforations. [Figure 8] FIG. 8 shows an exemplary blank for the manufacture of visibility packaging according to the present invention. [Figure 9] FIG. 9 shows a further exemplary blank for the manufacture of visibility packaging according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0052] 1 shows a perspective view of a preferred embodiment of a visibility package 100 according to the present invention. The visibility package 100 is formed by folding and adhesive bonding from a blank composed of a sheet material, in particular a paperboard blank. The visibility package 100 includes a rear wall 1 and a front wall 2, which together form a receiving space 6 in which energy storage elements 3 arranged in pairs (two pairs in this example) are located. The energy storage elements 3 are cylindrical round cells.

[0053] The front wall has two observation cutouts 4, through which the energy storage elements 3 are generally visible to an observer. A portion of the front wall forms a defining portion 5 for the energy storage elements 3, which are arranged transversely in a receiving space 6. The receiving space 6 is designed such that the energy storage elements 3 are arranged in the receiving space 6 with an orientation parallel to their longitudinal axes. The width of the receiving space 6 in this case corresponds substantially to the length of the individual energy storage elements 3. Generally speaking, the length of the receiving space 6 depends on how many energy storage elements 3 (four in this example) are intended to be arranged in the visibility packaging 100.

[0054] Located above the receiving space 6 is a free surface 7 of the visibility package 100. This surface 7 can be utilized for labels or other illustrations, especially for sales and presentation purposes. Furthermore, the visibility package 100 has a punched-out portion or cutout 8 in the upper region, by which the visibility package 100 can be hung on a suitable stand for sales purposes.

[0055] In the two edge regions of the visibility packaging, each web 9 is arranged in the region of the receiving space 6, said webs forming a K-shaped cross section together with the rear wall 1 in the closed position shown here. A central top region 10 of the web 9 is fixed, in particular adhesively bonded, to the contact region of the rear wall 1. The top region 10 divides the web 9, as it were, into two limbs, the web limbs and the top region 10 having a substantially V-shaped cross section. This arrangement of the webs 9 closes the receiving space 6 and prevents the energy storage element 3 from slipping out, so that the energy storage element 3 is safely stored in the visibility packaging 100.

[0056] In this embodiment, the visibility package 100 is formed from a one-piece paperboard blank. In other configurations, a two-piece blank can be used to manufacture an equivalent visibility package, as shown in FIG.

[0057] The embodiment of visibility packaging 200 shown in Fig. 2 has a rear wall 1 and a front wall 2 in a manner equivalent to the visibility packaging 100 from Fig. 1 and is constructed relative to the rest of the elements in a manner equivalent to embodiment 100. In contrast to embodiment 100, the front wall 2 is formed in embodiment 200 by a separate blank, said blank being adhesively bonded to a corresponding blank 7 for the rear wall 1 in the lower region 20 and in the region of the upper surface 7. Otherwise, the construction of embodiment 200 of the visibility packaging shown in Fig. 2 corresponds to embodiment 100, and for corresponding features, reference is made to the description relating to Fig. 1.

[0058] A central aspect of the present invention is that the top region 10 can be separated from the rear wall 1 by perforations along with the contact region 40 of the rear wall 1 to which the top region is fixed. As a result, the web 9 is then firmly fixed only at two points, i.e., at its two ends in the area of ​​the defining portion 5 of the receiving space 6, and the web 9 can be lifted from the closed position and folded upward. As a result, the receiving space 6 is brought into an open position, so that one or more energy storage elements 3, for example a pair of energy storage elements, can be removed. The web 9 can then be returned to the K-shaped closed position in the manner of a snap-action fastener to close the receiving space 6. The two edge webs are preferably assigned such perforations so that the receiving space 6 can be opened on both sides and closed again.

[0059] In the embodiments 100 and 200 of the visibility packaging, a further web 11 is positioned approximately in the center of the receiving space 6, which forms a K-shaped cross section together with the rear wall 1 in a manner equivalent to the edge webs 9. Here, perforations can also be assigned to the top region of the web 11, so that the top region of the web 11 can be detached from the rest of the rear wall, and the web 11 can be actuated in the manner of a snap-action fastener. However, in other configurations, the web 11 can also not be provided with any perforations at all, so that the web 11 forms, so to speak, a permanent division of the receiving space 6. In particular in embodiments in which the visibility packaging has more than two chambers, which are in each case separated from one another by webs 11, it can be advantageous for the webs 11 further dividing the receiving space 6 to be provided with perforations for separating the respective top regions in order to be able to open and close these webs 11.

[0060] A particular advantage of the visibility packaging according to the invention is therefore that it can be reclosed after one or more energy storage elements have been removed or replaced. In both the closed and removed positions, there is no protrusion of the packaging material, and the packaging material cannot accidentally fall off the visibility packaging. It is particularly preferred that the visibility packaging is configured for the removal of pairs of energy storage elements, as in the example shown here. The visibility packaging according to the invention is particularly suitable for packaging two or four energy storage elements, e.g., AA or AAA size ones, in this case.

[0061] 3 to 6 show various examples of perforations. Each contact area 40, to which the central top area 10 of the web 9 is fixed, can be detached from the remainder of the rear wall 1. In the figures shown here, the rear wall 1 is shown in each case from the rear side of the visibility packaging. The shown perforations are assigned to the edge web. Perforations 30, 31, 32, and 33 demarcate each contact area 40 from the remainder of the rear wall 1 in this case. The right-hand side of the contact area 40 shown in each case in these figures, which can be separated by perforations 30, 31, 32, or 33, is formed by the edge or open edge of the visibility packaging. The remaining sides of the approximately rectangular contact area 40, in particular the remaining three sides, are formed by perforations 30, 31, 32, and 33, which are linear in these examples. Various geometric shapes are possible here, for example geometric shapes with chamfered corners, as in the exemplary embodiments 31 and 33.

[0062] A particularly preferred configuration of the perforation 32 is shown in Figure 5, in which two triangular cutouts 35 are provided in the edge regions of the perforation 32, said triangular cutouts 35 facilitating manual engagement by the user.

[0063] In this case, Figure 6 shows a further particularly preferred configuration of the perforation 33, in which a semicircular cutout 34 is provided adjacent the perforation 33, said semicircular cutout being used to make it even easier for the user to attach, detach or separate the perforation 33.

[0064] 7 shows a complete rear view of the rear wall 1 of the visibility packaging 100 in each case to illustrate the arrangement of each perforation 30, 31, 32 or 33. Each perforation 30, 31, 32 and 33 is in each case located at the edge of the rear wall 1 and is in this case assigned to an edge web (not visible in further detail here) of the visibility packaging 100. These perforations allow the user to simply open and reclose the edge web of the visibility packaging 100 in the manner described above in order to be able to remove the energy storage elements or possibly replace them again.

[0065] 8 and 9 show exemplary cutting patterns for one-piece blanks made of sheet material, for example paperboard, which are applied by folding along the indicated lines and corresponding adhesive bonding to produce a visibility package 100 according to the invention. 2 grammage, bending stiffness of 64.2 mN / m (MD) and 32.4 mN / m (CD), and thickness of 0.58 mm (GD 425 g / m 2 ) is suitable as the sheet material. 2 Basis weight: 83.0mN / m (MD) and 26.0mN / m (CD), and thickness of 0.58mm (GT4 Kraft board 400g / m 2 )

[0066] 8 shows a one-piece blank for a visibility package 100, in which the edge perforations 32 are provided with the already described edge cutouts 35. This blank can be used for packaging for four cylindrical round cells, for example AA size, arranged in pairs.

[0067] FIG. 9 shows a one-piece blank for the visibility packaging 100, in which the edge perforations 31 are provided with angled corners. The three-dimensional configuration of the visibility packaging 100 is achieved by folding along parallel lines and corresponding adhesive bonding. In this way, receiving spaces 6 for energy storage elements, in particular for cylindrical round cells, are produced, in which the energy storage elements are arranged in the area of ​​the observation cutouts 4. This blank can be used to package, for example, four AAA-size cylindrical round cells, which are arranged in pairs. In the folded and adhesively bonded state, the cutouts 8 are arranged one on top of the other in each case, forming a hanging opening for the visibility packaging 100. Depending on the size and number of energy storage elements to be packaged, the dimensions of the blank can be adapted accordingly.

Claims

[Claim 1] A visibility packaging (100; 200) for an energy storage element (3), comprising: (a) the visibility package (100; 200) is formed by forming a rear wall (1) and a front wall (2) of the visibility package from at least one blank constructed from a sheet material; (b) the front wall (2) is spaced from the rear wall (1) to form a receiving space (6) for the energy storage element (3); (c) the front wall (2) is provided with at least one observation cutout (4); (d) the front wall (2) includes at least one web (9); (e) the web (9) has a central top region (10) secured to the contact region (40) of the rear wall (1), the web (9) and the rear wall (1) together forming a K-shaped cross section in the closed position, the web (9) closing the removal opening of the receiving space (6); and (f) A visibility package, characterized in that the rear wall (1) has at least one perforation (30; 31; 32; 33), the perforation defining a contact area (40) from the remainder of the rear wall (1), the perforation making it possible to separate the contact area (40) from the rear wall (1) so that the web (9) can be moved to a removal position by a folding operation, in which the top area (10) of the web (9) is spaced apart from the rear wall (1) and the web (9) releases a removal opening in the receiving space (6).

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