Paper packaging

Abstract

To provide a new packaging body made of paper, which can be easily assembled.SOLUTION: A packaged body made of paper 1, comprises: a base sheet 10 having a penetration hole 11; a base sheet 30 containing a bridge 31; and a base sheet 20 covering an open of a pocket 34. The base sheet 30 is bent toward the base sheet 10. The bridge 31 is inserted into the penetration hole 11 to form the pocket 34. In the pocket 34, a battery 100 is housed. The bridge 34 includes: a bottom prat 32 of the pocket 34; and a leg part 33 that is extended from an edge end of the bottom part 32. The base sheet 20 is bent toward the base paper 10. A tip end part of the leg part 33 is fixed so as to be positioned between the base sheet 10 and the base sheet 20.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a paper packaging body for packaging small products, particularly batteries having a flat shape.

Background Art

[0002] Conventionally, for the packaging of batteries, particularly flat batteries, many use a structure where a paper mount and a plastic sheet with a plurality of pockets formed for individually accommodating the batteries are bonded together.

[0003] Japanese Patent Application Laid-Open No. 2011-060689 (Patent Document 1) discloses a battery packaging body. The battery packaging body has a battery accommodating portion formed by a plastic sheet molded body with blisters for accommodating button batteries and a mount for closing the opening side of the blisters. The button batteries are accommodated in the battery accommodating portion.

[0004] On the other hand, in order to achieve a so-called sustainable society, it is required to reduce plastic waste. As a material with a lower environmental impact than plastic, paper materials can be mentioned. Therefore, replacing plastic products with paper products has been frequently considered. Regarding the packaging of batteries, for example, in Japanese Patent Application Laid-Open No. 11-268759 (Patent Document 2), a package for a cylindrical dry battery composed only of paper and easily assembled has been proposed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] On the other hand, no paper packaging suitable for individual packaging has been proposed for flat-shaped products.

[0007] Therefore, the objective of this disclosure is to provide a new paper packaging that can be easily assembled. [Means for solving the problem]

[0008] To solve the above problems, this disclosure is configured as follows: The paper packaging according to this disclosure may comprise a first backing sheet having a through hole, a bridge that is pressed into the through hole to form a pocket for housing a battery, and a second backing sheet covering the opening of the pocket. The bridge may have a bottom portion of the pocket and legs extending from the edge of the bottom portion. The tips of the legs may be positioned and fixed between the first backing sheet and the second backing sheet.

[0009] This allows for the simple assembly of a paper packaging by pushing the bridge into the through-hole in the first cardboard backing to form a pocket, placing the battery in the pocket, and covering the pocket opening with the second cardboard backing by positioning the tip of the legs between the first and second cardboard backings.

[0010] The paper packaging may further include a third backing. A bridge may be formed by separating it from the third backing. This allows the first backing, the second backing, and the third backing to be connected.

[0011] The first, second, and third cardboard sheets may be foldably connected to one another. The third cardboard sheet may be folded so that the bottom of the bridge faces the through-hole. The second cardboard sheet may be folded so that it covers the pocket opening and positions the tips of the legs between the first and second cardboard sheets. This allows the paper packaging to be easily assembled from each of the connected cardboard sheets, i.e., from a single blank.

[0012] The first, second, and third cardboard sheets may be connected so that, before folding, the first cardboard sheet is positioned between the second and third cardboard sheets. This allows for simpler assembly of the paper packaging by only needing to fold the second and third cardboard sheets, which are located on either side of the first cardboard sheet, relative to the first cardboard sheet. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is a perspective view showing the structure of the paper packaging according to this embodiment. [Figure 2] Figure 2 is a net diagram of the paper packaging shown in Figure 1. [Figure 3] Figure 3 shows a diagram illustrating the assembly method of a paper packaging body. [Figure 4] Figure 4 shows a diagram illustrating the assembly method of a paper packaging body. [Figure 5] Figure 5 shows the assembly method for paper packaging. [Figure 6] Figure 6 shows a diagram illustrating the assembly method of a paper packaging body. [Figure 7] Figure 7 shows a diagram illustrating the assembly method of a paper packaging body. [Figure 8] Figure 8 shows a method for removing batteries from paper packaging. [Figure 9] Figure 9 shows a modified example of a bridge. [Modes for carrying out the invention]

[0014] The paper packaging 1 according to the embodiment of this disclosure will be described in detail below with reference to Figures 1 and 2. As shown in Figure 1, the battery 100 is housed in a pocket 34, which is a storage space surrounded by the bridge 31 of the paper packaging 1. The paper packaging 1 is manufactured by assembling a blank formed by unfolding the paper packaging 1 shown in Figure 2. In this embodiment, the paper packaging 1 is made of paper. As shown in Figure 2, the paper packaging 1 includes a backing 10, a backing 20, and a backing 30. In this embodiment, the battery 100 is a flat-type battery.

[0015] The base sheet 10 has a through hole 11. The shape and size of the through hole 11 can be determined according to the shape and size of the battery 100 housed in the pocket 34. In the present embodiment, the through hole 11 is formed according to the shape and size of the bottom surface of the battery 100 which is a flat battery. The through hole 11 may include one or more guides 12 for guiding the leg portions 33 of the bridge 31 described later. For example, as shown in FIG. 2, the guide 12 is a notch provided at the opening edge of the through hole 11. The guide 12 is formed according to the shape and number of the leg portions 33.

[0016] The base sheet 20 is a lid that covers the opening of the pocket 34 in which the battery 100 is housed. The base sheet 20 has an opening piece 21. The opening piece 21 is formed so as to be cut off from the base sheet 20 by a cut line 22. The opening piece 21 has a gripping portion 21a corresponding to the tip of the opening piece 21. The gripping portion 21a is formed so as to project from the edge of the base sheet 20 at the end of the opening piece 21. Thereby, the gripping portion 21a can be pinched by the fingertips of the user, and the opening piece 21 can be easily cut off from the base sheet 20. The portion of the opening piece 21 that faces the through hole 11 when the base sheet 20 is bent toward the base sheet 10 is formed to have a size larger than the battery 100 in plan view. The opening piece 21 is formed to gradually taper from the facing portion toward the gripping portion 21a.

[0017] The base sheet 30 has a bridge 31 formed so as to be punchable from the base sheet 30. That is, the base sheet 30 is subjected to a punching process for punching out the bridge 31. The punching process is, for example, a perforation process or a half-cut process. In the present embodiment, a fastening portion 36 for connecting the base sheet 30 and the bridge 31 is provided at an arbitrary position of a cut line 35 formed along the shape of the bridge 31, and by pushing down the bridge 31 to detach the fastening portion 36, the bridge 31 can be separated from the base sheet 30.

[0018] The bridge 31 has a bottom portion 32 and leg portions 33. As will be described later, after being punched out from the mount 30, the bridge 31 is pushed toward the through hole 11 of the mount 10. Thereby, a pocket 34 for accommodating the battery 100 is formed.

[0019] As shown in FIG. 1, the bottom portion 32 restricts the movement of the battery 100 in the pushing direction of the bridge 31. Further, the bottom portion 32 has a diameter smaller than the diameter of the through hole 11 so as to be pushable into the through hole 11. That is, the diameter of the bottom portion 32 is smaller than the opening diameter of the through hole 11. On the other hand, the bottom portion 32 preferably has a shape that covers the bottom surface of the battery 100 from the viewpoint of protecting the battery 100 against external impacts.

[0020] The legs 33 are formed to extend outward from the edge of the bottom 32. In this embodiment, four legs 33 extend at equal intervals from the edge of the bottom 32. As shown in Figure 1, the legs 33 bend from the bottom 32 when the bridge 31 is pushed into the through hole 11, becoming part of the side wall of the pocket 34. The legs 33 can restrict the movement of the battery 100 in a direction perpendicular to the pushing direction of the bottom 32. Alternatively, the movement of the battery 100 in a direction perpendicular to the pushing direction may be restricted by the opening edge of the through hole 11. Furthermore, by adjusting the amount of pushing when the bridge 31 is pushed into the through hole 11, a pocket 34 that can accommodate batteries of different thicknesses can be formed. The guide 12 described above is formed at a position where the legs 33 bent from the bottom 32 are guided when the cardboard backing 10 and the cardboard backing 30 are placed facing each other. As will be described later, the tip of the leg portion 33 is positioned and fixed between the backing paper 10 and the backing paper 20 with the bridge 31 pressed into the through hole 11. More specifically, with the bridge 31 pressed into the through hole 11, the tip of the leg portion 33 is folded and attached along the main surface of the backing paper 10 on the opposite side from the position of the bottom portion 32. Therefore, the leg portion 33 can also be said to be a connecting portion that connects the bottom portion 32 and the backing paper 10. As a result, the bridge 31 and the battery 100 housed in the pocket 34 do not fall out of the paper packaging 1. For this reason, it is preferable for the bridge 31 to have multiple leg portions 33, more preferably three or more leg portions 33.

[0021] If the backing sheets 10, 20, and 30 are formed from a single backing sheet, the through-hole 11 in backing sheet 10 may also be formed by punching. Backing sheets 10, 20, and 30 are connected to each other by a fold line 200 so that they can be folded. The fold line 200 can be any method that allows adjacent backing sheets to be easily folded, such as creasing, folding, and perforation. Backing sheet 10 is located between backing sheets 20 and 30. More specifically, backing sheet 30 is connected to one side edge (right side in the illustration) of backing sheet 10. Backing sheet 30 is folded toward backing sheet 10. At this time, the bottom 32 of the bridge 31 faces the through-hole 11 in backing sheet 10. Backing sheet 20 is connected to the other side edge (left side in the illustration) of backing sheet 10. Backing sheet 20 is folded toward backing sheet 10. In this case, the backing sheet 20 covers the opening of the pocket 34. Also, the opening tab 21 of the backing sheet 20 faces the opening of the pocket 34.

[0022] As shown in Figures 1 and 2, in this embodiment, the paper packaging 1 has five pockets 34 and can accommodate five batteries 100. Each of the five batteries is individually housed in a pocket 34. The paper packaging 1 has perforations 300. The perforations 300 are formed to allow each pocket 34 to be cut, so that the pockets 34 can be detached from the paper packaging 1 according to the required number of batteries 100. For example, it is possible to cut each of the five pockets 34 one by one. Alternatively, after removing the batteries 100 from a predetermined pocket 34, the pockets 34 that are no longer needed can be detached from the paper packaging 1. In Figure 2, the perforations 300 are formed in a straight line across the cardboard backing 10, cardboard backing 20, and cardboard backing 30. The straight perforations 300 formed on each cardboard backing are formed to overlap when the cardboard backings are folded over each other. The cutting line 300 is formed by perforation or half-cutting, similar to the cutting line 22 described above.

[0023] Thus, the paper packaging 1 has a simple structure consisting of a base sheet 10, a base sheet 20, and a base sheet 30 (or a bridge 31). The bridge 31 is pushed into the through hole 11 to form a pocket 34, and the battery 100 is housed in the pocket 34. The tip of the leg portion 33 is then fixed between the base sheet 10 and the base sheet 20, and the opening of the pocket 34 is covered with the base sheet 20, making it easy to assemble. Furthermore, because the paper packaging 1 is made by connecting the base sheet 10, the base sheet 20, and the base sheet 30, it can be assembled from a single blank sheet. Moreover, since the paper packaging 1 is made of paper base sheets, it can contribute to reducing plastic waste.

[0024] Next, using Figures 3 to 7, we will explain in more detail how to assemble the paper packaging 1 and house the battery 100 inside the paper packaging 1.

[0025] First, as shown in Figure 3, fold the backing sheet 30 toward the backing sheet 10 in the direction of arrow A. Then, as shown in Figure 4, the backing sheet 30 and the backing sheet 10 will overlap so that the through hole 11 and the bottom 32 of the bridge 31 face each other. At this point, from the viewpoint of facilitating the pushing operation of the bridge 31, which will be described later (see Figure 6), it is preferable to attach the backing sheet 30 and the backing sheet 10 excluding the bridge 31.

[0026] Next, as shown in Figure 5, the battery 100 is moved in the direction of arrow B so that its bottom surface faces the bottom 32, and the battery 100 is placed on the bottom 32. Below the battery 100 and the bottom 32 is a through hole 11 in the cardboard base 10.

[0027] Next, as shown in Figure 6, the battery 100 placed on the bottom 32 is pushed toward the bridge 31 in the direction of arrow C. As a result, the bridge 31 is pushed by the battery 100, which severs the fastener 36 connecting the base 30 and the bridge 31, causing the bridge 31 to detach from the base 30. The legs 33 are then guided along the guide 12 of the through hole 11, and the bottom 32 and battery 100 are pushed into the through hole 11. The bottom 32 and battery 100 then move to the opposite side of the base 10. At this point, the bridge 31 forms a pocket 34. That is, the bridge 31, inserted through the through hole 11, protrudes from the surface of the base 10. The battery 100 is housed in the pocket 34. The tips of the legs 33 remain on the surface of the base 10 opposite the bottom 32 without being inserted through the through hole 11. Therefore, the legs 33 are longer than the thickness of the battery that is housed within them.

[0028] Finally, as shown in Figure 7, the cardboard backing 20 is folded toward the cardboard backings 10 and 30 so as to cover the opening of the pocket 34 and the battery 100. At this time, the cardboard backing 20 and cardboard backing 10 may be glued together. The tip of the leg portion 33 is fixed between the cardboard backing 10 and cardboard backing 20. In this way, the paper packaging body 1 shown in Figure 1 can be assembled. Furthermore, by positioning and connecting the cardboard backing 10 between the cardboard backings 20 and 30 in the unfolded blank of the paper packaging body 1 shown in Figure 2, it is only necessary to fold the cardboard backing 30 and cardboard backing 20 toward the cardboard backing 10 one by one, as shown in Figures 3 and 7, thus making it easier to assemble the paper packaging body 1.

[0029] As shown in Figure 8, when using the battery 100, the user can remove the battery 100 from the paper packaging 1 by pinching the grip portion 21a with their fingertips and peeling up the opening tab 21 along the perforation line 22.

[0030] (modified version)

[0031] The shape of the bridge 31 is not limited to the embodiments described above. For example, the bridge 31 may be X-shaped in plan view, as shown in Figure 9(a), or Y-shaped in plan view, as shown in Figure 9(b). In this case, the area near the intersection of the extensions of the legs 33 can be made the bottom 32. Alternatively, the bridge 31 may be I-shaped, with the area near its center being the bottom 32. In this way, as long as the bridge 31 can be configured with a bottom 32 that restricts the movement of the battery 100 in the pushing direction, and legs 33 that can connect the bottom 32 to the base 10, its shape can be changed in various ways.

[0032] Furthermore, in the above embodiment, the base sheet 10 was placed between the base sheet 20 and the base sheet 30 as shown in Figure 2 to connect them, but they may be connected in any arrangement as long as the above assembly method is feasible. Alternatively, the base sheets 10, 20, and 30 may be stacked as appropriate according to the above assembly method without connecting them. Alternatively, the bridge 31 may be prepared in advance without providing the base sheet 30, and pushed into the through hole 11 together with the battery 100.

[0033] The paper packaging 1 can be used to package batteries other than flat-type batteries. In this case, the cardboard inserts 10, 20, and 30 (or bridge 31) should be formed according to the size and shape of the battery. Furthermore, even items other than batteries that require small-scale packaging can be packaged, as long as they are small products, especially those with a flat shape.

[0034] Although embodiments have been described above, this disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the disclosure. [Explanation of symbols]

[0035] 1 paper packaging, 10 cardboard inserts, 11 through-holes, 12 guides, 20 cardboard inserts, 21 opening tabs, 30 cardboard inserts, 31 bridge, 32 base, 33 feet, 34 pockets

Claims

1. A first backing sheet having through holes, A bridge that is pushed into the through hole to form a pocket for housing the battery, The pocket comprises a second backing sheet that covers the opening of the pocket, The bridge has a bottom portion of the pocket and legs extending from the edge of the bottom portion. The tip of the leg portion is positioned and fixed between the first base and the second base. Furthermore, it includes a third backing sheet, The bridge is formed by separating it from the third base, The first, second, and third cardboard bases are connected to each other in a foldable manner. The third cardboard base is folded so that the bottom of the bridge faces the through hole. A paper packaging body wherein the second backing sheet covers the opening of the pocket and is folded so that the tips of the legs are positioned between the first backing sheet and the second backing sheet.

2. A paper packaging body according to claim 1, A paper packaging body in which the first, second, and third backings are connected such that, before being folded, the first backing is positioned between the second and third backings.

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