Packing box

Abstract

To provide a packing box which is easy to assemble and dissemble and in which contents are easy to see and take out when a lid is removed for taking out the contents.SOLUTION: A body box 10 has such a configuration that: a front plate 12, a left side plate 14a, a back plate 13, and a right side plate 14b are connected to respective sides of a rectangular bottom plate 11 via a folding ruled line; the front plate, the left side plate, the back plate, and the right side plate are connected to each other by folding pieces 17; a back inner plate 15 having approximately the same size as the back plate is connected to the back plate; pressing pieces 18 are connected to left and right ends on a tip side of the back inner plate; the back inner plate holds a folding piece that is folded inside the body box to a position facing the back plate and is connected to the back plate; the holding piece presses the side plate to lock the back inner plate; a covering lid consists of four side plates, a top plate connected to one of the side plates, left and right flaps, and a tongue piece; and a lower opening is formed by folding the folding ruled line and adhering end parts. The body box with the front plate upright is covered with the covering lid so as to store contents through the opening part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a packaging box formed by folding a blank, and more particularly to a packaging box having a structure that allows easy assembly and disassembly and easy removal of articles stored therein. [Background technology]

[0002] Packaging boxes have been widely used for storing and transporting confectionery, food, medicine, cosmetics, toys, daily necessities, etc. Paper boxes are used in a variety of fields, taking advantage of the advantages of paper, such as low cost and ease of processing.

[0003] Among these, paper boxes, which are formed by folding blank sheets of cardboard along creases without using adhesives or other materials during assembly, have been proposed in a variety of shapes and structures because the assembly and disassembly processes can be simplified and the paper can be easily recycled after use.

[0004] For example, Patent Document 1 discloses a paper box made by folding cardboard, in which the corner flaps of the side panels are inserted and fixed inside the fold-in flaps of the adjacent side panels, keeping the side panels in an upright position; by removing the corner flaps, the side panels can be easily folded down and unfolded into a flat plate, allowing the contents (confectionery) to be removed without damaging them.

[0005] However, in the paper box disclosed in Patent Document 1, when the side panels are unfolded, they spread out in all directions, requiring a large area to flatten out. Furthermore, when trying to reseal the box, it is necessary to hold the four side panels upright while inserting the corner flaps and putting on the lid, which makes it difficult to work with.

[0006] Furthermore, Patent Document 2 discloses a paper box with a simple partition material that is integrated into the packaging box, and claims that by attaching the simple partition material to the inside of the paper box, multiple stored items will not collide with each other or fly out of the paper box during transport.

[0007] However, the paper box disclosed in Patent Document 2 requires the time-consuming task of attaching a divider to the inside of the narrow paper box, and the divider makes it difficult to see the contents when the lid is opened, and items can get caught on the divider, making it difficult to remove. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Utility Model Registration No. 3126996 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-49473 Summary of the Invention [Problem to be solved by the invention]

[0009] Therefore, an object of the present invention is to provide a packaging box that is easy to assemble and disassemble, and from which the stored contents can be easily seen and removed when the lid is removed to remove the stored contents. [Means for solving the problem]

[0010] In order to solve the above problem, the invention according to claim 1 of the present invention is as follows: A packaging box consisting of a main box and a cover lid that is placed on the main box from above, The box has a rectangular bottom panel with a front panel, left panel, back panel, and right panel, which are folded along each side. The front panel, left panel, back panel, and right panel are connected to each other by a fold-out piece that is folded into the inside of the body box along the fold line, and an inner back panel of approximately the same size as the back panel is connected to the side of the back panel opposite to the side to which the bottom panel is connected, and pressing pieces are connected to both left and right ends of the tip side of the inner back panel, The inner back panel is folded into the inside of the body box to a position opposite the back panel and holds a fold-out piece that is connected to the back panel, The pressing piece presses the left and right side panels to lock the rear inner panel, The cover lid is made up of four side panels, a rectangular top panel connected to one of the side panels that faces the front panel or the back panel of the main box, flaps connected to each of the side panels that face the right and left side panels, and a tongue piece connected to the side panel that faces the side panel to which the top panel is connected, and is box-shaped with an opening at the bottom that is folded along the creases and has its edges glued together. This packaging box is characterized in that a cover lid is placed on a main box with the front panel standing upright so that it can be stored through the opening.

[0011] The invention according to claim 2 of the present invention is as follows: The packaging box according to claim 1, characterized in that a box-shaped partition base having locking holes formed therein that match the shape of the product to be stored is placed on the bottom plate.

[0012] The invention according to claim 3 of the present invention is as follows: 3. The packaging box according to claim 1, wherein a notch is provided on an edge of the opening side of a pair of opposing side plates of the cover lid.

[0013] The invention according to claim 4 of the present invention is as follows: 4. The packaging box according to claim 1, wherein the main box and the cover lid are formed from paperboard or a corrugated cardboard sheet. [Effects of the Invention]

[0014] According to the invention described in claim 1 of the present invention, in the body box which can be constructed by folding a blank sheet, the back inner panel connected to the back panel is folded inward so as to sandwich the folding piece between it and the back panel, and the pressure pieces provided on both left and right ends of the tip side press the left and right side panels, so that the back inner panel is engaged by the frictional resistance between the pressure pieces and the left and right side panels and does not slip off, and the back panel, folding piece and back inner panel are held in an upright position from the bottom panel, while the front panel is easily opened by being forced forward by the folding piece because the folding piece between the left and right side panels has natural elasticity, and when products are stored in the body box and the front panel is raised and the lid is placed on top, the lid has a box-like shape, and when the lid is removed, the back panel and back inner panel are held in an upright position, while the front panel is forced forward and falls down due to the elasticity of the folding piece, so that the products stored on the bottom panel are easy to see from the front and to take out.

[0015] Furthermore, according to the invention described in claim 2, the stored products are stored in a manner that they fit into the locking holes, which is more preferable as they will not move during transportation, collide with each other, be damaged, or be displaced from their storage position.

[0016] Furthermore, according to the invention described in claim 3, the body box can be easily clamped at the cutout portion, making it easier to remove the cover.

[0017] According to the invention as set forth in claim 4, the packaging box can be made of paper, making it easy to dispose of and recycle, and environmentally friendly. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a development view of a blank sheet of an example of a main box of a packaging box according to the present invention. [Figure 2] FIG. 10 is an explanatory diagram of how an example of a body box is assembled. [Figure 3] FIG. 10 is an explanatory diagram of how an example of a body box is assembled. [Figure 4] FIG. 2 is a development view of a blank sheet of an example of a cover for a packaging box of the present invention. [Figure 5] FIG. 1 is an external view of an example of a cover. [Figure 6] FIG. 1 is an external view of the packaging box of the present invention with the cover lid covering the main box. [Figure 7] 1 is an external view of a packaging box according to the present invention containing a product with a cover removed. [Figure 8] FIG. 10 is a development view of a blank sheet of an example of a partition base. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0020] Figure 1 is a development view of a blank sheet for an example of a body box of the packaging box of the present invention. Front panel 12, left panel 14a, back panel 13, and right panel 14b are connected to each side of rectangular bottom panel 11 via fold lines. Front panel 12 and left panel 14a are connected by fold-in piece 16a, left panel 14a and back panel 13 by fold-in piece 17a, back panel 13 and right panel 14b by fold-in piece 17b, and right panel 14b and front panel 12 by fold-in piece 16b. Fold-in pieces 16a, 16b, 17a, and 17b are folded into the body box 10 along the fold lines. An inner back panel 15, approximately the same size as the back panel, is connected to the edge of back panel 13 opposite the edge connected to bottom panel 11. Pressing pieces 18a and 18b are connected to both left and right ends of the leading edge of inner back panel 15. The left side panel 14a and the right side panel 14b are sometimes collectively referred to as side panels 14, and the fold-out pieces 16, 17, etc. are also called by the same name. The body box 10 is formed by folding the blank sheet described above.

[0021] To assemble the box 10, first fold the right panel 14b, the left panel 14a, and the back panel 13 along the creases around the bottom panel 11. At this time, the folding pieces 17a and 17b are folded inward to face the interior of the box 10. Next, as shown in FIG. 2, the back panel 15 is folded inward to a position facing the back panel 13, sandwiching the folding pieces 17a and 17b. As a result, the back panel 15 is folded in such a way that the retaining pieces 18a and 18b on the left and right ends of the leading edge thereof abut against the side panels 14a and 14b. The retaining pieces 18a and 18b are pressed against the side panels 14a and 14b due to their elasticity, and the back panel 15 is locked by frictional resistance, so that the back panel 15 is held facing the back panel 13. At this time, the back panel 13, the back panel 15, and the side panels 14 are in a generally upright position relative to the bottom panel 11.

[0022] Next, the front panel 12 is raised as shown in Figure 3, but prior to this, products to be stored can be placed on the bottom panel 11. The front panel 12 is raised by folding in the fold-out pieces 16a and 16b so that they are inside the main box 10, and the main box 10 is formed into a box shape as shown in Figure 3(b). However, because the fold-out pieces 16a and 16b elastically tend to unfold sideways, the front panel 12 is urged in a direction that causes it to fall forward, and unless it is pressed down by some means, such as a hand, from the direction of the outline arrow, it will not be able to maintain its raised state, and the main box 10 will not maintain its box-like shape and will be open at the front.

[0023] On the other hand, when dismantling the body box 10, the folded portion can be easily returned to its original state along the crease lines, returning it to the flat blank sheet form, and it can be easily disposed of. In addition, since no adhesives or the like are used, it is environmentally friendly and suitable for recycling.

[0024] Next, the structure of the cover lid to be placed on the main box will be explained. Fig. 4 is a development view of a blank sheet of an example of a cover lid for the packaging box of the present invention. The cover lid 20 comprises side panels 21, 24 (the direction is not particularly limited) facing the front panel 12 or the back panel 13 of the main box 10, side panels 23a, 23b facing the side panels 14a, 14b, a top panel 22 connected to the side panel 21, and a top panel 23a, The cover 20 is made up of flaps 25a, 25b connected to the respective side panels 21 and 23b, and a tongue piece 26 connected to the side panel 24. Glue tabs 27 are connected to the side edges of the side panels 21, which are then coated with adhesive and bonded to the side edges of the side panels 23b to form a cylindrical body, and the top panel 22 is folded and the insert piece 22b is inserted and engaged to form a box-like shape (Fig. 5). The bottom forms an opening for inserting the main box 10. By pulling out the insert piece 22 and raising the top panel 22, the cover 20 can be easily folded flat, making it easy to dispose of.

[0025] Fig. 6 is an external view of the packaging box of the present invention in which the cover lid is placed on the main box. This is an external view of the packaging box 1 of the present invention in which the main box 10, which has a box-like shape with the front panel shown in Fig. 3(b) in an upright position, is housed in the cover lid 20 of the embodiment shown in Fig. 5. The cover lid can be removed by pulling it up, but if notches 28a, 28b are provided on the lower edges of the opposing side panels 23a, 23b of the cover lid 20, it becomes easier to grip the main box 10 at those portions and to pull up the cover lid 20. The notches 28 may be provided on the side of the side panels 21, 24, or on both.

[0026] When the cover 20 is lifted and removed from the packaging box 1 containing the product, as shown in Figure 7, the folding pieces 16 naturally unfold to the left and right due to their elasticity, and the front panel 12 is forced forward and falls, naturally opening the front, making the stored product 40 easy to see and take out. Meanwhile, the back panel 13 and side panels 14 are held down by the inner back panel 15, so they remain in a nearly upright position. This prevents the main box 10 from unfolding more than necessary, making it easy to handle.

[0027] When the packaging box 1 is to be resealed, the front panel 12 is folded up and placed in an upright position, and the packaging box 1 can be easily resealed by placing the cover 20 thereon.

[0028] In Figure 7, product 40 is stored by fitting it into a box-shaped partition base 30 placed on the bottom panel. The partition base 30 can be constructed by folding a blank sheet into a box shape, as shown in Figure 8. The partition base can also be provided with locking holes 31, 32, 33, 34 and restriction plates 35 of any shape to suit the shape of the product to be stored.

[0029] By attaching the partition base 30, the stored products are fitted into the locking holes and fixed in place, which is more preferable as it prevents products from colliding with each other due to vibrations during transportation, preventing damage and preventing the products from shifting out of position.

[0030] The materials that make up the main box, cover lid, and divider box that make up the packaging box of the present invention are not particularly limited as long as they have appropriate stiffness, and examples include cardboard, paperboard, and plastic sheets.However, from the perspective of ease of disposal and recycling, environmental compatibility, and the like, it is more preferable to use cardboard and paperboard that have appropriate stiffness and are made from paper.

[0031] As explained above, the packaging box of the present invention can be easily assembled, easily disassembled, and easily recycled. Furthermore, when the cover is removed, the front panel naturally folds down, making it easy to see and remove the contents. Therefore, it can be suitably used as a packaging box for gifts or as a so-called POP material for store displays. [Explanation of symbols]

[0032] 1...Packaging box 10... body box 11...Bottom plate 12...Front plate 13...Back plate 14a, 14b, 21, 23a, 23b, 24...Side plate 15...Back inner plate 16a, 16b, 17a, 17b...Folding piece 18a, 18b... Presser pieces 20···Cover 22...Top plate 25···Side flap 26... tongue piece 28a, 28b...Notch 30···Intermediate partition stand 31, 32, 33, 34...Latching holes 35 Regulatory plate

Claims

1. A packaging box comprising a body box made of a blank sheet and a cover lid made of a blank sheet different from the blank sheet constituting the body box, which is placed on the body box from above and is detachable from the body box, The body box has a front panel, left panel, back panel, and right panel connected to each side of a rectangular bottom panel via fold lines, and the front panel, left panel, back panel, and right panel are connected to each other by fold-out pieces that are folded into the inside of the body box at the fold lines, an inner back panel of approximately the same size as the back panel is connected to the side of the back panel opposite to the side to which the bottom panel is connected, and pressure pieces are connected to both left and right ends of the tip side of the inner back panel, The inner back panel is folded into the inside of the body box to a position opposite the back panel and holds a fold-out piece that is connected to the back panel, The pressing piece presses the left and right side panels to lock the rear inner panel, The cover lid is made up of four side panels, a rectangular top panel connected to one of the side panels that faces the front panel or the back panel of the main box, flaps connected to each of the side panels that face the right and left side panels, and a tongue piece connected to the side panel that faces the side panel to which the top panel is connected, and is box-shaped with an opening at the bottom that is folded along the creases and has its edges glued together. This packaging box is characterized in that a cover lid is placed on a main box with its front plate standing upright so as to be stored through an opening, and when the cover lid is removed from the main box, the back plate and the inner back plate of the main box are kept standing upright, while the front plate of the main box is biased forward by the elasticity of the fold-out piece and falls down.

2. 2. The packaging box according to claim 1, wherein a box-shaped partition base having locking holes formed therein corresponding to the shape of the product to be stored is placed on the bottom plate.

3. 3. The packaging box according to claim 1, wherein a notch is provided in an edge of the opening side of a pair of opposing side plates of the cover lid.

4. 4. The packaging box according to claim 1, wherein the main box and the cover are made of paperboard or corrugated cardboard.

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