Storage box and blank

Abstract

This invention provides a storage box and a blank box that can be easily switched from a packaged state to a display state with excellent visibility. [Solution] The storage box comprises a bottom surface and a top surface, a first side surface and a second side surface, a third side surface and a fourth side surface, and at least one of the third side surface and the fourth side surface has a first portion adjacent to the first side surface and a second portion adjacent to the top surface, and both the first portion and the first side surface are provided with a first break line that spans both, and the second portion is provided with a second break line that extends toward the top surface, and the first target portion of the first side surface that is on the top surface side of the first break line is continuous with the second target portion of the first portion that is on the top surface side of the first break line, and the top surface is continuous with the first target portion and the third target portion of the second portion that is on the first side surface side of the second break line.

Description

Technical Field

[0001] The present invention relates to a storage box and a blank.

Background Art

[0002] As a storage box, a storage box that can be switched from a packaging state for transporting articles to a display state for displaying (陈列) the articles at a storefront or the like is known (for example, see Patent Document 1). In the storage box described in Patent Document 1, when displaying at a storefront or the like, after cutting one outer flap horizontally along the tear portion, cutting from the cut to the tip edge along the cut line together with the sealing tape, and opening the other outer flap and holding it in a folded-back state. Thereby, an opening communicating with the inside is provided in the front-side side wall of the storage box, and it becomes possible to visually recognize the article through the opening.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the storage box described in Patent Document 1, although it can be switched from the packaging state to the display state, the visible range of the article is limited to the front side. Therefore, an improvement in visibility in the display state is required.

[0005] Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide a storage box and a blank forming the storage box that can be switched from a packaging state to a display state with excellent visibility by simple operations.

Means for Solving the Problems

[0006] The above objective is resolved by the present invention, which provides a storage box comprising a bottom and top surface arranged vertically, a first side surface and a second side surface arranged vertically between the bottom and top surfaces, and a third side surface and a fourth side surface arranged horizontally between the bottom and top surfaces, wherein at least one of the third and fourth side surfaces has a first portion adjacent to the first side surface and a second portion adjacent to the top surface, both the first portion and the first side surface are provided with a first break line spanning both, the second portion is provided with a second break line extending toward the top surface, the first target portion of the first side surface located on the top surface side of the first break line is continuous with the second target portion of the first portion located on the top surface side of the first break line, and the top surface is continuous with the first target portion and the third target portion of the second portion located on the first side surface side of the second break line. Furthermore, the blank of the present invention is provided with a fold line, and by folding along the fold line, it forms the storage box described above. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a storage box and a blank form for the storage box that can be switched from a packaged state to a display state with excellent visibility through a simple operation. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the packed state of a storage box according to one embodiment of the present invention. [Figure 2] This is a right side view showing the packed state of a storage box according to one embodiment of the present invention. [Figure 3] This figure shows the packed state of a storage box according to one embodiment of the present invention, and is a perspective view from a different angle than Figure 1. [Figure 4] This is an explanatory diagram (Part 1) of the procedure for switching a storage box according to one embodiment of the present invention from a packaging state to a display state. [Figure 5]This is an explanatory diagram (part 2) of the procedure for switching a storage box according to one embodiment of the present invention from a packaging state to a display state. [Figure 6] This is a diagram illustrating the procedure for switching a storage box according to one embodiment of the present invention from a packaging state to a display state (part 3). [Figure 7] This is an explanatory diagram (part 4) illustrating the procedure for switching a storage box according to one embodiment of the present invention from a packaging state to a display state. [Figure 8] This is a right side view showing the display state of a storage box according to one embodiment of the present invention. [Figure 9] This is a plan view of a blank container that constitutes one embodiment of the present invention. [Figure 10] This is a right side view showing the packaging state of the storage box according to the first modified example of the present invention. [Figure 11] This is a right side view showing the packaging state of the storage box according to a second modified example of the present invention. [Figure 12] This is a right side view showing the packaging state of the storage box according to the third modified example of the present invention. [Modes for carrying out the invention]

[0009] Hereinafter, one embodiment of the present invention (hereinafter referred to as "this embodiment") will be described with reference to the attached drawings. In the drawings, the various parts of the storage box are shown in a somewhat simplified or schematic manner for the sake of clarity. Furthermore, the sizes (dimensions) and spacing between parts of the storage box shown in the drawings may differ from the actual dimensions. Additionally, unless otherwise specified, the materials and shapes of the parts used to implement this invention can be arbitrarily determined according to the intended use of the invention and the state of the art at the time of implementation.

[0010] In addition, in this specification, "orthogonal", "parallel", and "perpendicular" shall include the range of errors acceptable in the technical field to which the present invention pertains. For example, "orthogonal", "parallel", and "perpendicular" in this specification mean within a range of less than ±10° with respect to strict "orthogonal", "parallel", and "perpendicular". Note that the error from strict "orthogonal", "parallel", and "perpendicular" is preferably 5° or less, and more preferably 3° or less. In addition, in this specification, the meaning of "the same" may include the range of errors generally acceptable in the technical field to which the present invention pertains. In addition, in this specification, the meaning of "entire area" includes, in addition to the case of 100%, the range of errors generally acceptable in the technical field to which the present invention pertains, and may include cases such as 99% or more, 95% or more, or 90% or more.

[0011] <<Regarding the configuration of the storage box according to this embodiment>> With reference to FIGS. 1 to 8, the configuration of the storage box (hereinafter, storage box 10) according to this embodiment will be described. The storage box 10 is a storage box that can be switched from a packaging state (the state in FIG. 1) for transporting an article to a display state (the state in FIG. 7) for displaying (exhibiting) the article at a storefront or the like. The article C (refer to FIG. 7) accommodated in the storage box 10 is not particularly limited as long as it is a known article displayed at a storefront or the like. In this embodiment, it is assumed that a plurality of articles C are accommodated in the storage box 10.

[0012] As shown in FIG. 1, the storage box 10 includes a bottom surface portion 11, a top surface portion 12, a front side surface portion 13 (corresponding to the first side surface portion), a rear side surface portion 14 (corresponding to the second side surface portion), a right side surface portion 15 (corresponding to the third side surface portion), and a left side surface portion 16 (corresponding to the fourth side surface portion). The bottom surface portion 11 and the top surface portion 12 are arranged at intervals in the vertical direction. The front side surface portion 13 and the rear side surface portion 14 are arranged between the bottom surface portion 11 and the top surface portion 12 in the vertical direction and are arranged at intervals in the front-rear direction. The right side surface portion 15 and the left side surface portion 16 are arranged between the bottom surface portion 11 and the top surface portion 12 in the vertical direction and are arranged at intervals in the left-right direction. The storage box 10 has, for example, a rectangular parallelepiped shape with the longitudinal direction in the left-right direction. Each of the surface portions 11 to 16 constituting the storage box 10 is, for example, rectangular in a plan view, and adjacent surface portions are continuous with each other.

[0013] In the following description, a state where the bottom surface portion 11 of the storage box 10 is placed on a horizontal surface is defined as the normal use state, and unless otherwise specified, when describing the position of the storage box 10, as well as the orientation and extension direction of each part of the storage box 10, etc., the position, orientation, and extension direction when the storage box 10 is in the normal use state shall be indicated.

[0014] Also, in the following description, as shown in FIG. 1, three mutually orthogonal directions are defined as the "vertical direction", the "front-rear direction", and the "left-right direction" respectively. The "vertical direction" corresponds to the direction orthogonal to the bottom surface portion 11, and the "front-rear direction" and the "left-right direction" correspond to the directions along the surface of the bottom surface portion 11. Note that "left" and "right" in the "left-right direction" are defined based on the case when the storage box 10 is viewed from the front side (front surface side). Also, the "vertical direction", the "front-rear direction", and the "left-right direction" mentioned here are defined based on the arrangement form of the storage box 10 in this embodiment, and the definitions of each direction will be different depending on the arrangement form of the storage box.

[0015] Also, the "inside" of the storage box 10 means the side of the internal space (storage space) surrounded by each of the surface portions 11 to 16 constituting the storage box 10, and the "outside" of the storage box 10 means the side opposite to the internal space (the side of the external space) across each of the surface portions 11 to 16. Also, for each of the surface portions 11 to 16 constituting the storage box 10, the "surface" means the surface on the external space side, and the "back surface" means the surface on the internal space side.

[0016] <Flap> Here, the right side portion 15 has a first flap 20 (corresponding to the first part), a second flap 30 (corresponding to the second part), a third flap 40 (corresponding to the third part), and a fourth flap 50 (corresponding to the fourth part), as shown in Figure 1. Similarly, the left side portion 16, although not shown, has a first flap 20, a second flap 30, a third flap 40, and a fourth flap 50. As described above, the side portion composed of each flap 20, 30, 40, and 50 is referred to as the "target side portion," and in this embodiment, both the right side portion 15 and the left side portion 16 are considered to be the "target side portion." However, this is not limited to this, and at least one of the right side portion 15 and the left side portion 16 may be the "target side portion." In the following explanation, since the configuration of the right side section 15 and the left side section 16 are the same, unless otherwise specified, only the right side section 15 will be explained, and the left side section 16 will be explained only when necessary. Accordingly, the following explanation of the right side section 15 may be replaced with the explanation of the left side section 16.

[0017] As described above, the right side portion 15 has flaps 20, 30, 40, and 50. As shown in Figure 1, the first flap 20 is adjacent to and continuous with the front side portion 13. More specifically, the first flap 20 extends from the right end in the left-right direction of the front side portion 13 toward the rear in the front-rear direction. When viewed from the left-right direction, the first flap 20 has a rectangular plate shape with its vertical direction as its longest side. The second flap 30 is adjacent to the top surface 12 and is continuous with the top surface 12. More specifically, the second flap 30 extends from the rightmost edge in the left-right direction of the top surface 12 toward the bottom in the up-down direction. When viewed from the left-right direction, the second flap 30 has a rectangular plate shape with its length in the front-back direction.

[0018] The third flap 40 is adjacent to and continuous with the rear side portion 14. More specifically, the third flap 40 extends from the right end of the rear side portion 14 in the left-right direction toward the front in the front-rear direction. When viewed from the left-right direction, the third flap 40 has a rectangular plate shape with its vertical direction as its longest side. The fourth flap 50 is adjacent to the bottom surface 11 and is continuous with the bottom surface 11. More specifically, the fourth flap 50 extends from the right end in the left-right direction of the bottom surface 11 toward the upper side in the up-down direction, and has a rectangular plate shape with its longitudinal side in the front-back direction.

[0019] As shown in Figure 2, the first flap 20 and the third flap 40 are arranged with a gap between them in the front-rear direction. In other words, the tip 20a of the first flap 20 and the tip 40a of the third flap 40 are located apart from each other in the front-rear direction. The "tip 20a of the first flap 20" corresponds to the end of the first flap 20 opposite to the front side portion 13 in the front-rear direction. The "tip 40a of the third flap 40" corresponds to the end of the third flap 40 opposite to the rear side portion 14 in the front-rear direction.

[0020] Furthermore, the second flap 30 and the fourth flap 50 are spaced apart in the vertical direction. In other words, the tip 30a of the second flap 30 and the tip 50a of the fourth flap 50 are located apart from each other in the vertical direction. Note that "the tip 30a of the second flap 30" corresponds to the end of the second flap 30 opposite to the top surface 12 in the vertical direction. "The tip 50a of the fourth flap 50" corresponds to the end of the fourth flap 50 opposite to the bottom surface 11 in the vertical direction.

[0021] Therefore, as shown in Figure 2, a rectangular first opening 71 is formed on the right side surface 15, surrounded by the first flap 20, the second flap 30, the third flap 40, and the fourth flap 50.

[0022] In this embodiment, the first flap 20 and the third flap 40, which are aligned in the front-to-back direction, correspond to the inner flaps, and the second flap 30 and the fourth flap 50, which are aligned in the vertical direction, correspond to the outer flaps. Parts of the inner flaps and the outer flaps overlap each other.

[0023] Specifically, parts of the first flap 20 and the second flap 30 overlap with each other, with the second flap 30 located outside the first flap 20. More specifically, the front side portion 13 side of the second flap 30 in the front-rear direction overlaps the top portion 12 side of the first flap 20 in the vertical direction from the outside. Furthermore, parts of the first flap 20 and the fourth flap 50 overlap with each other, with the fourth flap 50 located outside the first flap 20. More specifically, the front side portion 13 side of the fourth flap 50 in the front-rear direction overlaps with the bottom portion 11 side of the first flap 20 in the vertical direction from the outside.

[0024] Furthermore, parts of the second flap 30 and the third flap 40 overlap with each other, with the second flap 30 located outside the third flap 40. More specifically, the rear side portion 14 side of the second flap 30 in the front-rear direction overlaps with the top portion 12 side of the third flap 40 in the vertical direction from the outside. Furthermore, parts of the third flap 40 and the fourth flap 50 overlap with each other, with the fourth flap 50 located outside the third flap 40. More specifically, the rear side portion 14 side of the fourth flap 50 in the front-rear direction overlaps with the bottom portion 11 side of the third flap 40 in the vertical direction from the outside.

[0025] As shown in Figure 2, when the right side portion 15 is viewed from the left-right direction, the entire area of ​​the second flap 30 and the fourth flap 50, which correspond to the outer flaps, is exposed. On the other hand, of the first flap 20 and the third flap 40, which correspond to the inner flaps, only the central portions of the first flap 20 and the third flap 40 in the vertical direction are exposed, while both ends of the first flap 20 and the third flap 40 in the vertical direction are covered by the second flap 30 and the fourth flap 50, which correspond to the outer flaps. In the following description, as shown in Figure 2, the portion of the first flap 20 that does not overlap with the second flap 30 and the fourth flap 50, which correspond to the outer flaps, will be referred to as the "non-overlapping portion 23". In this embodiment, the non-overlapping portion 23 is located in the central part of the first flap 20 in the vertical direction. Furthermore, at least a portion of the overlapping parts of the inner flap and the outer flap shall be joined to each other. The method of joining the inner flap and the outer flap is not particularly limited, but for example, joining with an adhesive such as hot melt may be used.

[0026] <Broken line> As shown in Figure 1, the storage box 10 has two first break lines 61, two second break lines 62 (only the right side 15 is shown in Figure 1), a third break line 63, a fourth break line 64 (see Figure 3), and two fifth break lines 65. Each break line 61 to 65 is linear or strip-shaped and includes perforations or the like.

[0027] The first break line 61 is, for example, a strip-shaped break line, provided on both the front side portion 13 and the first flap 20, and continuous across both the front side portion 13 and the first flap 20.

[0028] More specifically, of the two first fracture lines 61, one first fracture line 61 (the right first fracture line 61) extends along the left-right direction from the cut 81 located in the center of the front side portion 13 in the left-right direction to the right end of the front side portion 13 in the left-right direction. Furthermore, from the right end of the front side portion 13 in the left-right direction, it extends along the front-rear direction to the first opening 71 of the right side portion 15, in other words, the tip 20a of the first flap 20 (see Figure 2). The other first break line 61 (the left first break line 61) extends along the left-right direction from the cut portion 81 to the left end of the front side portion 13 in the left-right direction. Furthermore, it extends along the front-rear direction from the left end of the front side portion 13 in the left-right direction to a first opening 71 (not shown) of the left side portion 16. Of the two first break lines 61, one first break line 61 may be provided on at least one of the front and back surfaces of the front side portion 13. Similarly, of the two first break lines 61, the other first break line 61 may be provided on at least one of the front and back surfaces of the front side portion 13.

[0029] Furthermore, as shown in Figure 2, the first break line 61 is provided in the non-overlapping portion 23 of the first flap 20. In the above description, it was assumed that there are two first fracture lines 61, but the explanation is not limited to this, and for example, two first fracture lines 61 may be continuous with each other to form one first fracture line 61.

[0030] The second fracture line 62 is, for example, a linear fracture line. Of the two second fracture lines 62, one is provided on the second flap 30 on the right side surface 15, as shown in Figure 1, and the other second fracture line 62 is provided on the second flap 30 on the left side surface 16, although it is not shown. As shown in Figure 2, the second break line 62 extends toward the top surface 12, and more specifically, extends toward the top surface 12 from the tip 30b (more specifically, the tip 30a) of the second flap 30. The "tip 30b" corresponds to the end of the second flap 30 opposite to the top surface 12 in the vertical direction, and includes the tip 30a.

[0031] As shown in Figure 2, the second break line 62 extends from the corner of the rectangular first opening 71 when viewed from the left and right directions, that is, from point P1 where the tip 30a of the second flap 30 extending in the front-rear direction and the tip 40a of the third flap 40 extending in the up-down direction intersect with each other. In other words, it is preferable that at least a portion of the second break line 62 overlaps with the tip 40a of the third flap 40 when viewed from the left and right directions. The second break line 62 is inclined toward the rear side surface 14 in the front-rear direction and extends from point P1 to point P2, which is located further toward the rear side surface 14 in the front-rear direction than point P1 and is adjacent to the top surface 12. When points P1 and P2 are connected by a hypothetical straight line, the second break line 62 has an arc shape that protrudes toward the front side surface 13 in the front-rear direction than that hypothetical straight line.

[0032] The third break line 63 is, for example, a linear break line, and as shown in Figure 1, it is provided on the top surface 12 and extends in the left-right direction. In this embodiment, the third break line 63 extends to the boundary position between the top surface 12 and the right side surface 15, and to the boundary position between the top surface 12 and the left side surface 16, respectively, and is adjacent to the second break lines 62 on the right side surface 15 and the left side surface 16. In other words, in this embodiment, the second break line 62 and the third break line 63 are not continuous with each other, and a gap is provided between the second break line 62 and the third break line 63. However, this is not limited to the above, and for example, the second breaking line 62 and the third breaking line 63 may be continuous with each other. In that case, the breakability of the storage box 10 can be improved. That is, by the second breaking line 62 and the third breaking line 63 being continuous with each other, the second breaking line 62 and the third breaking line 63 become a single breaking line that spans both the second flap 30 and the top surface 12. As a result, the section from the second flap 30 to the top surface 12 can be broken smoothly.

[0033] The fourth break line 64 is, for example, a linear break line and is provided on the bottom surface 11 as shown in Figure 3. The fourth break line 64 is a break line for forming the second opening 72 (see Figure 7) on the bottom surface 11 and is provided along the position where the edge of the second opening 72 is to be formed. The edge shape of the second opening 72 is not particularly limited and may be, for example, circular, elliptical, rectangular, or a quadrilateral other than a rectangle, but in this embodiment, it will be described assuming that it is rectangular.

[0034] As shown in Figure 3, the fourth break line 64 is provided at the end 11a on the front side surface 13 side of the bottom surface 11 in the front-rear direction, and is located in the center of the bottom surface 11 in the left-right direction. In this embodiment, the fourth break line 64 has a portion located on one side (left side) of the second opening 72 in the left-right direction, a portion located on the rear side of the second opening 72 in the front-rear direction, and a portion located on the other side (right side) of the second opening 72 in the left-right direction. The fourth break line 64 is formed by the continuity of adjacent portions of each portion of the fourth break line 64. In other words, the fourth break line 64 is provided continuously in a position surrounding the second opening 72, except for the front side in the front-rear direction of the second opening 72. For each of the aforementioned parts in the fourth break line 64, when the edge shape of the second opening 72 is rectangular, as shown in Figure 3, the part located on the left side extends in the front-to-back direction, the part located on the rear side extends in the left-to-right direction, and the part located on the right side extends in the front-to-back direction.

[0035] As shown in Figure 3, the fifth fracture line 65 is provided on the front side portion 13 and is located on the bottom portion 11 side in the vertical direction of the front side portion 13 compared to the first fracture line 61. The two fifth fracture lines 65 are adjacent (continuous) with the fourth fracture line 64 at the end 13d on the bottom portion 11 side in the vertical direction of the front side portion 13. Specifically, of the two fifth fracture lines 65, one fifth fracture line 65 is adjacent to the portion located to the left of the fourth fracture line 64, and the other fifth fracture line 65 is adjacent to the portion located to the right of the fourth fracture line 64. The two fifth fracture lines 65 extend from the end 13d toward the first fracture line 61, inclined toward the sides that are separated from each other in the left-right direction. In this embodiment, of the two fifth fracture lines 65, one fifth fracture line 65 extends from the center to the right end of the front side portion 13 in the left-right direction. The other fifth break line 65 extends in the left-right direction from the center of the front side portion 13 to the left end.

[0036] Next, the top surface 12, the first flap 20, and the second flap 30 will be described in more detail, along with their respective break lines 61-63 and 65.

[0037] As shown in Figure 1, the top surface 12 is divided into two parts 12a and 12b by a third break line 63. Part 12a is the portion of the top surface 12 that is located on the front side surface 13 side in the front-rear direction relative to the third break line 63. Part 12a is continuous with the first target portion 13a of the front side surface 13, which will be described later. Also, as shown in Figure 2, part 12a is continuous with the third target portion 31 of the second flap 30, which will be described later. As shown in Figure 1, portion 12b is the part of the top surface 12 that is located on the rear side surface 14 side in the front-rear direction relative to the third break line 63. Portion 12b is continuous with the rear side surface 14. Also, as shown in Figure 2, portion 12b is continuous with the fourth target portion 32 of the second flap 30, which will be described later.

[0038] As shown in Figure 1, the front side portion 13 is divided into three parts 13a, 13b, and 13c by the first break line 61 and the fifth break line 65. Part 13a (hereinafter referred to as "first target part 13a") is the portion of the front side surface 13 that is located on the top surface 12 side in the vertical direction relative to the first break line 61. The first target part 13a is continuous with the top surface 12, and more specifically, it is continuous with part 12a of the top surface 12. Furthermore, the first target part 13a is continuous with the first flap 20 on the right side surface 15 and the left side surface 16, and more specifically, it is continuous with the second target part 21 of the first flap 20, which will be described later.

[0039] Part 13b is the portion of the front side portion 13 located between the first break line 61 and the fifth break line 65. Part 13b is continuous with the first flap 20 on the right side portion 15 and the left side portion 16, and more specifically, it is continuous with part 22 of the first flap 20, which will be described later. Part 13c is the portion of the front side portion 13 that is located on the bottom portion 11 side in the vertical direction relative to the fifth break line 65. There are two parts 13c. The two parts 13c correspond to the two fifth break lines 65 and are located below each of the fifth break lines 65. One of the two parts 13c is continuous with the first flap 20 of the right side portion 15, and more specifically, is continuous with part 22 of the first flap 20, which will be described later. The other part 13c is continuous with the first flap 20 of the left side portion 16, and more specifically, is continuous with part 22 of the first flap 20, which will be described later.

[0040] As shown in Figure 2, the first flap 20 is divided into two parts 21 and 22 by the first break line 61. Part 21 (hereinafter referred to as "second target part 21") is the portion of the first flap 20 that is located on the top surface 12 side in the vertical direction relative to the first break line 61. The second target part 21 is continuous with the front side surface 13, and more specifically, it is continuous with the first target part 13a of the front side surface 13. Part 22 is the portion of the first flap 20 that is located on the bottom surface 11 side in the vertical direction relative to the first break line 61. Part 22 is continuous with the front side surface 13, and more specifically, it is continuous with parts 13b and 13c of the front side surface 13. Furthermore, the aforementioned non-overlapping portion 23 is composed of parts of portions 21 and 22, as shown in Figure 2. More specifically, the non-overlapping portion 23 is composed of a part of the second target portion 21 on the side of the first fracture line 61 and a part of portion 22 on the side of the first fracture line 61.

[0041] As shown in Figure 2, the second flap 30 is divided into two parts 31 and 32 by the second break line 62. Part 31 (hereinafter referred to as "third target part 31") is the portion of the second flap 30 that is located on the front side surface portion 13 side in the left-right direction relative to the second break line 62. The third target part 31 is continuous with the top surface portion 12, and more specifically, it is continuous with part 12a of the top surface portion 12. Part 32 (hereinafter referred to as "the fourth target part 32") is the portion of the second flap 30 that is located on the rear side surface portion 14 side in the left-right direction relative to the second break line 62. The fourth target part 32 is continuous with the top surface portion 12, and more specifically, it is continuous with part 12b of the top surface portion 12.

[0042] <<Regarding the operation and effects of the storage box according to this embodiment>> Next, we will explain, using an example, the series of steps involved in switching the storage box 10 from the packed state (state shown in Figure 1) to the display state (state shown in Figure 7). This series of procedures will be explained below, divided into (1) fracture by the first fracture line 61, (2) fracture by the second fracture line 62, (3) fracture by the third fracture line 63, and (4) fracture by the fourth fracture line 64 and the fifth fracture line 65.

[0043] <Fracture due to the first fracture line> First, the user places their fingers on the cut portion 81 of the storage box 10 in the packaged state shown in Figure 1, grasps the end of the strip-shaped first break line 61 on the cut portion 81 side, and pulls the first break line 61 outwards from the storage box 10. As a result, both the first flap 20 and the front side portion 13 are broken at the first break line 61, and as shown in Figure 4, the first target portion 13a and portions 13b and 13c of the front side portion 13 are separated, and the second target portion 21 and portion 22 of the first flap 20 are separated.

[0044] However, as shown in Figure 2, the first break line 61 is located in the non-overlapping portion 23 of the first flap 20, which does not overlap with the second flap 30 and the fourth flap 50. If the first breaking line 61 is located on the part of the first flap 20 that overlaps with the second flap 30 or the fourth flap 50, then when pulling the first breaking line 61 outwards from the storage box 10, the second flap 30 or the fourth flap 50 will get in the way. Therefore, in some cases, it may be necessary to break the second flap 30 or the fourth flap 50 along with the first flap 20, making it not easy to break the first flap 20 using the first breaking line 61. In contrast, in this embodiment, the first breaking line 61 is provided in the non-overlapping portion 23 of the first flap 20, so the second flap 30 and the fourth flap 50 do not get in the way when pulling the first breaking line 61 to the outside of the storage box 10. Therefore, the first flap 20 can be easily broken by the first breaking line 61.

[0045] Furthermore, as shown in Figure 2, a first opening 71 is provided on the right side surface 15, and the first break line 61 extends to the first opening 71. If the first opening 71 is not provided on the right side surface 15, the first break line 61 needs to be extended to a position adjacent to the second break line 62, and the length of the first break line 61 will need to be determined accordingly. In contrast, in this embodiment, a first opening 71 is provided on the right side surface 15. Therefore, the length of the first break line 61 can be limited to the length up to the first opening 71, and the length of the first break line 61 can be shortened compared to the case where the first opening 71 is not provided on the right side surface 15. As a result, the first flap 20 can be broken more easily by the first break line 61.

[0046] <Fracture due to the second fracture line> Subsequently, the user places both hands in the gap between the first target portion 13a and portion 13b of the storage box 10 in the state shown in Figure 4, and while holding down portions 13b and 13c with one hand, applies upward force (away from portions 13b and 13c) to the first target portion 13a with the other hand. When the user applies a force greater than a predetermined amount to the first target portion 13a, the second flap 30 begins to break.

[0047] Referring to Figure 2, the fracture of the second flap 30 begins at the upper edge of the first opening 71, more specifically at point P1 where the tip 30a of the second flap 30 and the tip 40a of the third flap 40 intersect. After the fracture of the second flap 30 begins, the user applies further force to the first target portion 13a, causing the fracture of the second flap 30 to progress further along the second fracture line 62. During this fracture process of the second flap 30, the portion 12a of the top surface 12, the first target portion 13a, the second target portion 21, and the third target portion 31 rotate together around a pivot point provided on the top surface 12. In this embodiment, the "rotation pivot point" corresponds to the third break line 63 extending in the left-right direction. However, it is not limited to this, and for example, a rotation pivot point other than the third break line 63 may be provided on the top surface 12. Furthermore, the part 12a, the first target part 13a, the second target part 21, and the third target part 31, which rotate together as a single unit, will be referred to as the "lid part 17" (see Figure 4 or 5) for convenience in the following description. Subsequently, as the lid portion 17 rotates, the fracture of the second flap 30 progresses further along the second fracture line 62. Then, as shown in Figure 5, when the fracture position of the second flap 30 reaches point P2, the third target portion 31 and the fourth target portion 32 of the second flap 30 are separated.

[0048] As shown in Figure 5, in the storage box 10, the first target portion 13a is continuous with the second target portion 21, and the top portion 12 (more specifically, portion 12a) is continuous with the first target portion 13a and the third target portion 31. Therefore, when the front side portion 13 and the first flap 20 are broken at the first break line 61, and the second flap 30 is broken at the second break line 62, portion 12a of the top portion 12, the first target portion 13a, the second target portion 21, and the third target portion 31 constitute the lid portion 17 and rotate together as a unit around the pivot point (third break line 63). As a result, the user can perform a simple operation of breaking the front side portion 13 and the first flap 20 along the first break line 61 and then rotating the lid portion 17, thereby making the item C contained in the storage box 10 visible from multiple directions, specifically from the front, top, left, and right sides, as shown in Figure 5. In this way, the storage box 10 can be switched from a packaged state to a display state with excellent visibility with a simple operation.

[0049] Furthermore, as shown in Figure 2, the storage box 10 is provided with a first opening 71 on the right side surface 15. When an opening is provided on the side, the stress associated with the rotation of the lid 17 is concentrated at the edge of the opening, so the fracture of the side starts from the edge of the opening. The inventors took this into consideration and provided a first opening 71 on the right side 15, thereby limiting the starting position of fracture in the second flap 30 to the area R (see Figure 2) of the second flap 30 adjacent to the first opening 71, as shown in Figure 2. Thus, in the storage box 10, a first opening 71 is provided on the right side surface 15, thereby limiting (specifying) the range R within the second flap 30 that is easily broken, and a second breaking line 62 is provided within that range R. As a result, the second flap 30 is broken along the second breaking line 62, making it easy to break the second flap 30.

[0050] However, within the range R, stress is particularly concentrated in the second flap 30 at point P1, which corresponds to the corner of the first opening 71, that is, as shown in Figure 2, at the point that overlaps with the tip 40a of the third flap 40 when viewed from the left or right direction. To explain this, if the second flap 30 and the third flap 40, which are joined together, are considered as a single member, the cross-sectional area of ​​this single member changes abruptly in the front-to-back direction, starting from the tip 40a of the third flap 40. Here, "cross-sectional area" refers to the cross-section perpendicular to the front-to-back direction. In other words, on the rear side surface 14 side in the fore-aft direction relative to the tip 40a, the second flap 30 and the third flap 40 overlap. On the other hand, on the front side surface 13 side in the fore-aft direction relative to the tip 40a, the second flap 30 and the third flap 40 do not overlap, so the cross-sectional area becomes sharply smaller compared to the rear side surface 14 side in the fore-aft direction relative to the tip 40a. Areas where the cross-sectional area changes sharply like this are prone to stress concentration and are particularly susceptible to fracture.

[0051] The inventors have taken this into consideration and, as shown in Figure 2, position at least a portion of the second fracture line 62 so as to overlap with the tip 40a of the third flap 40 when viewed from the left and right directions. As a result, the second fracture line 62 is positioned in a location where the second flap 30 is easily fractured, and as a result, the second flap 30 can be fractured more easily.

[0052] Furthermore, in the storage box 10, as shown in Figure 2, the second break line 62 extends from the tip 30b (more specifically, the tip 30a) of the second flap 30 toward the top surface 12. Thus, because the second fracture line 62 extends from the tip portion 30b where the fracture of the second flap 30 begins, the second flap 30 can be easily fractured.

[0053] Furthermore, if the lid portion 17 is rotated around the rotation base point (third fracture line 63) without providing a second fracture line 62 on the second flap 30, it is assumed that the fracture trajectory of the second flap 30 will not be a straight line, but will progress in an arc shape that protrudes toward the front side portion 13. In this embodiment, taking this into consideration, the second fracture line 62 is made into a shape corresponding to the above trajectory, that is, an arc shape that protrudes toward the front side portion 13, thereby making it possible to easily fracture the second flap 30.

[0054] Furthermore, as shown in Figure 2, the second flap 30 corresponds to the outer flap and is located outside the first flap 20, which corresponds to the inner flap. Therefore, the entire area of ​​the second flap 30 is exposed, and the user can see the second break line 62 provided on the second flap 30 from the outside of the storage box 10. This allows the second flap 30 to be easily broken along the second break line 62.

[0055] Another effect of the second flap 30 being located outside the first flap 20 is that, in the storage box 10 in the packaged state shown in Figure 1, the first flap 20, which extends vertically, is located below the top surface 12, and therefore the top surface 12 is supported by the first flap 20. If the second flap 30 were located inside the first flap 20, the first flap 20 would not be located below the top surface 12, and the top surface 12 would not be supported by the first flap 20. In the storage box 10 in the packaged state shown in Figure 1, the top surface 12 is supported by the first flap 20, which ensures strength against loads from above. This allows for appropriate handling, for example, when stacking multiple storage boxes 10 in the packaged state shown in Figure 1.

[0056] Furthermore, in the storage box 10, both the right side portion 15 and the left side portion 16 are the target side portions. For this reason, a first break line 61 and a second break line 62 are provided on both the right side portion 15 and the left side portion 16. As a result, compared to the case where the first break line 61 and the second break line 62 are provided on only one of the right side portion 15 or the left side portion 16, the right side portion 15 and the left side portion 16 become easier to break, and the lid portion 17 can be rotated more easily. Furthermore, only one of the right side portion 15 and the left side portion 16 may be the target side portion. Even in this case, the first break line 61 and the second break line 62 are provided on the side portion of either the right side portion 15 or the left side portion 16. As a result, the side portion of either the right side portion 15 or the left side portion 16 becomes easier to break, and as a result, the lid portion 17 can be easily rotated. In addition, in a configuration where only one of the right side portion 15 or the left side portion 16 is the target side portion, the area over which the break line is provided can be reduced, thus shortening the time required to provide the break line in the manufacturing process (reducing the number of steps).

[0057] <Fracture due to the third fracture line> Next, the user breaks the top surface 12 along the third break line 63 extending in the left-right direction, thereby separating the top surface 12 into part 12a and part 12b. As a result, as shown in Figure 6, the lid 17 can be removed from the storage box 10, and the storage box 10 can be displayed in a more visible state.

[0058] <Fractures caused by the 4th and 5th fracture lines> Furthermore, the user breaks the bottom portion 11 along the fourth break line 64 (see Figure 3). This creates a second opening 72 (see Figure 7) in the bottom portion 11. The user then places their fingers over the formed second opening 72, grasps the edge of the front side portion 13 (more specifically, portion 13b), and breaks the front side portion 13 along the two fifth break lines 65, removing portion 13b from the storage box 10 as shown in Figure 7. This allows the storage box 10 to be efficiently switched from the packed state shown in Figure 1, through the states shown in Figures 4 and 6, to the display state shown in Figure 7.

[0059] In this way, in the storage box 10, the fourth break line 64 provided on the bottom surface 11 is broken, forming a second opening 72 in the bottom surface 11. This allows the front side surface 13 to be easily broken using the second opening 72 as a starting point. However, when the front side portion 13 is fractured, it is also desirable that the second opening 72, which serves as the starting point, is formed in the front side portion 13. However, if the second opening 72 is formed in the front side portion 13, the overall strength of the front side portion 13 will decrease, and as a result, the strength of the storage box 10 against loads from above may decrease. In contrast, in this embodiment, since the second opening 72 is formed in the bottom portion 11, the decrease in the strength of the front side portion 13 as described above can be suppressed.

[0060] Furthermore, in the storage box 10, as shown in Figure 1, the fifth break line 65 is inclined to move away from each other in the left-right direction as it moves from the end 13d on the bottom surface 11 side of the front side surface 13 toward the first break line 61. Therefore, after the front side portion 13 is broken by the fifth breaking line 65, as shown in Figure 7, it becomes possible to see the entire area of ​​at least the article C located in the center of the storage box 10 in the left-right direction, among the multiple articles C arranged in the left-right direction. In other words, before the front side portion 13 is broken by the fifth breaking line 65, a part of the entire area of ​​the article C located in the center of the storage box 10 in the left-right direction was not visible, but by breaking the front side portion 13 by the fifth breaking line 65, it becomes possible to see the entire area of ​​that article C. Thus, in this embodiment, by breaking the front side portion 13 by the fifth breaking line 65, the storage box 10 can be displayed in a state with better visibility.

[0061] Furthermore, the strength of the storage box 10 in the display state shown in Figure 7 is reduced compared to the storage box 10 in the packaging state shown in Figure 1. On the other hand, even in the display state shown in Figure 7, the storage box 10 containing the item C needs to have enough strength so that the storage box 10 (especially the bottom part 11) does not bend when it is lifted. In this embodiment, even after the storage box 10 is placed in the display state shown in Figure 7, a portion 13c of the front side portion 13 remains on the storage box 10. This portion 13c is continuous with the portion 22 and bottom portion 11 of the first flap 20. As a result, the article C is supported by a three-dimensional support consisting of the bottom portion 11, portion 13c, and portion 22, which helps to suppress problems such as the storage box 10 bending under the load of the article C.

[0062] Furthermore, in the storage box 10 in the display state shown in Figure 8, after all the break lines 61-65 have been broken, the rear side portion 14 is continuous with the bottom portion 11 and portion 12b (top portion 12). The bottom portion 11 is continuous with the fourth flap 50, and portion 12b (top portion 12) is continuous with the fourth target portion 32 (second flap 30). The third flap 40 is continuous with the rear side portion 14 and is fixed (joined) to the fourth target portion 32 and the fourth flap 50. Therefore, when the storage box 10 in the display state shown in Figure 8 is lifted, the item C is supported by a three-dimensional support consisting of the bottom portion 11, portion 12b (top portion 12), rear side portion 14, fourth target portion 32, third flap 40, and fourth flap 50, thereby suppressing problems such as the storage box 10 bending under the weight of the item C.

[0063] <<Regarding the blank according to this embodiment>> The storage box 10 according to this embodiment is constructed, for example, from a single blank 18 as shown in Figure 9. However, the present invention is not limited to a storage box 10 assembled from a single blank, and is also applicable to storage boxes assembled from multiple blank pieces. In the following description, Blank 18 is assumed to be a corrugated cardboard sheet made of paper, and unless otherwise specified, corrugated cardboard sheet means a corrugated cardboard sheet made of paper. However, Blank 18 is not limited to this and may be, for example, paper (cardboard), plastic corrugated cardboard sheet, or plastic board, and may be coated in various ways. Furthermore, if the storage box is assembled from multiple blank pieces, each blank piece may be made of the same material as the blank.

[0064] As shown in Figure 9, the blank 18 of the storage box 10 before assembly (i.e., the storage box 10 in its unfolded state) extends in a planar manner and in two mutually perpendicular directions. In the following, one direction will be referred to as the X direction and the other direction as the Y direction. For example, if the base portion 11S of the blank 18 is rectangular, the X direction will correspond to the shorter side of the base portion 11S, and the Y direction will correspond to the longer side of the base portion 11S.

[0065] Furthermore, in this embodiment, the grain direction M of the corrugated cardboard sheet forming the blank 18 is parallel to the X direction, as shown in Figure 9. However, it is not limited to this, and for example, it may be tilted at 45 degrees with respect to the X direction, or it may be perpendicular to the X direction (i.e., parallel to the Y direction). Note that "grain direction M" refers to the direction of the corrugations in the core of corrugated cardboard sheets, and the direction of the fiber flow in the case of paper (cardboard).

[0066] As shown in Figure 9, the blank 18 has a bottom portion 11S, a top portion 12S, a front side portion 13S, a rear side portion 14S, two first flap portions 20S, two second flap portions 30S, two third flap portions 40S, two fourth flap portions 50S, and a connecting piece 91S. In the X direction, the joining piece 91S, the rear side portion 14S, the bottom portion 11S, the front side portion 13S, and the top portion 12S are arranged in this order in a continuous sequence. The rear side portion 14S has a third flap portion 40S attached to both ends in the Y direction. The bottom portion 11S has a fourth flap portion 50S attached to both ends in the Y direction. The front side portion 13S has a first flap portion 20S attached to both ends in the Y direction. The top portion 12S has a second flap portion 30S attached to both ends in the Y direction.

[0067] Next, an example of the procedure for assembling the storage box 10 by folding the blank 18 will be described. Folding lines are provided at the boundary positions of each part, and the storage box 10 is assembled by folding along the folding lines. Furthermore, in the assembly process of the storage box 10, it is assumed that the assembly is performed with the base portion 11S, which serves as the reference part, placed on a horizontal surface. In addition, the items C to be stored in the storage box 10 may be placed on the base portion 11S in the state before assembly.

[0068] The assembly procedure is as follows: First, the folding lines provided at the boundary positions of each part are folded. Next, the joining piece 91S is joined to the top surface part 12S with adhesive or the like to form the bottom surface part 11S, the top surface part 12S, the front side surface part 13S, and the rear side surface part 14S into a cylindrical shape. Then, the parts 20S, 30S, 40S, and 50S that form the flaps located on one side of the blank 18 in the Y direction are joined together with adhesive or the like to join the overlapping parts together. Similarly, the parts 20S, 30S, 40S, and 50S that form the flaps located on the other side of the blank 18 in the Y direction are joined together with adhesive or the like to join the overlapping parts together. This completes the assembly of the storage box 10 in the packaged state shown in Figure 1.

[0069] As explained above, the storage box 10 (blank 18) is made of a corrugated cardboard sheet. The corrugated cardboard sheet has a grain direction M, as shown in Figure 9, and the grain direction M extends parallel to the X direction shown in Figure 9. Therefore, in the storage box 10 assembled from the blank 18, the mesh direction M in the front side portion 13, rear side portion 14, first flap 20, and third flap 40 extends in the vertical direction. That is, the front side portion 13, rear side portion 14, first flap 20, and third flap 40 are stronger against tensile or compressive forces from the vertical direction compared to when the mesh direction M extends in a direction intersecting the vertical direction. Therefore, the storage box 10 can ensure strength against loads from above, and can appropriately handle situations such as stacking multiple storage boxes 10 in the packaging state shown in Figure 1.

[0070] On the other hand, in the display state of the storage box 10 shown in Figure 7, it is assumed that the user will lift the storage box 10 by holding both ends of the bottom surface 11 in the left-right direction (longitudinal direction). However, in the storage box 10, the grain direction M of the bottom surface 11 extends in a direction that intersects with the left-right direction (i.e., the front-back direction). Therefore, compared to the case where the grain direction M of the bottom surface 11 extends in the left-right direction, the strength of the bottom surface 11 against the load of the item C is lower when the storage box 10 is lifted by holding both ends of the bottom surface 11 in the left-right direction. In this embodiment, as described above, the article C is supported by a three-dimensional support consisting of a bottom portion 11, portion 12b (top portion 12), rear side portion 14, fourth target portion 32, third flap 40, and fourth flap 50. Therefore, even if the grain direction M of the bottom portion 11 extends in a direction intersecting the left-right direction, the article C can be properly supported by the above-mentioned support, thereby suppressing problems such as the storage box 10 bending due to the load of the article C. Thus, the storage box 10 can appropriately ensure the required strength in both the storage box 10 in the packed state shown in Figure 1 and the storage box 10 in the display state shown in Figure 7.

[0071] <<Regarding other embodiments>> Although one embodiment of the storage box of the present invention has been described above, the above embodiment is merely an example to facilitate understanding of the present invention and does not limit it. In other words, the present invention can be modified and improved without departing from its spirit. Furthermore, it goes without saying that the present invention includes equivalents thereof. The following describes a modified storage box according to the present invention. In the following description, components having the same function as those of the storage box 10 according to the above embodiment will be denoted by the same reference numerals for convenience.

[0072] In the above embodiment, as shown in Figure 3, the fourth break line 64 is provided on the bottom surface 11. However, it is not limited to this, and for example, the fourth break line 64 for forming the second opening 72 may be provided on at least one of the bottom surface 11 and the top surface 12. For example, although not shown, the fourth break line may be provided on the top surface 12. Specifically, consider a case where, for example, the user wants to check the contents of the storage box 10 before breaking the front side portion 13 and the first flap 20 using the first breaking line 61. In this case, the user breaks the top portion 12 using a fourth breaking line (not shown) provided on the top portion 12. This creates a second opening (not shown) in the top portion 12. The user may then place their finger on the second opening (not shown) formed in the top portion 12 and break a portion of the front side portion 13 (the portion above the first breaking line 61), thereby creating an opening (not shown) in the front side portion 13. This allows the user to check a portion of the contents of the storage box 10 through the opening (not shown) formed in the front side portion 13 before breaking the front side portion 13 and the first flap 20 using the first breaking line 61.

[0073] On the other hand, if the configuration of the above embodiment is such that, as shown in Figure 3, the fourth break line 64 is provided only on the bottom surface 11 of the bottom surface 11 and the top surface 12, then, as mentioned above, the storage box 10 can be efficiently switched from the packaging state shown in Figure 1, through the states shown in Figures 4 and 6, to the display state shown in Figure 7.

[0074] Furthermore, in the above embodiment, as shown in Figure 2, the first flap 20 and the third flap 40, which are arranged in the front-to-back direction, correspond to the inner flaps, and the second flap 30 and the fourth flap 50, which are arranged in the up-to-down direction, correspond to the outer flaps. However, the embodiment is not limited to this, and for example, as shown in the storage box 10X in Figure 10, the first flap 20 and the third flap 40, which are arranged in the front-to-back direction, correspond to the outer flaps, and the second flap 30 and the fourth flap 50, which are arranged in the up-to-down direction, correspond to the inner flaps. Even with such a storage box 10X, just like the storage box 10 according to the above embodiment, the user can make the items C stored in the storage box 10X visible from multiple directions by performing a simple operation of breaking the front side portion 13 and the first flap 20 along the first breaking line 61 and then rotating the lid portion 17. In this way, the storage box 10X can be switched from a packaged state to a display state with excellent visibility with a simple operation.

[0075] Furthermore, in the above embodiment, as shown in Figure 2, a first opening 71 is formed on the right side portion 15. However, it is not limited to this, and as shown in the storage box 10Y in Figure 11, the respective tips 20a and 40a of the first flap 20 and the third flap 40, which correspond to the inner flaps, are in contact with each other (butting against each other), and a first opening 71 does not need to be formed on the right side portion 15. Alternatively, as shown in Figure 12, the end tips 30a, 50a of the second flap 30 and the fourth flap 50, which correspond to the outer flap, may be in contact with each other (butting against each other), and the first opening 71 may not be formed on the right side surface 15. Even with such storage boxes 10Y and 10Z, just like with the storage box 10 according to the above embodiment, the user can make the items C stored in the storage boxes 10Y and 10Z visible from multiple directions by performing a simple operation of breaking the front side portion 13 and the first flap 20 along the first breaking line 61 and then rotating the lid portion 17. In this way, with storage boxes 10Y and 10Z, it is possible to switch from a packaged state to a display state with excellent visibility with a simple operation.

[0076] In the storage box 10Y, the lengths of the flaps 20, 30, 40, and 50 (length from the base end to the tip of the flap) are determined by using the lengths of the first flap 20 and the third flap 40, which are aligned in the short direction (front-to-back direction) of the right side section 15, as the standard length, and all flaps 20, 30, 40, and 50 are made to this standard length. Here, the "standard length" corresponds to half the width of the right side section 15 in the short direction (front-to-back direction). As a result, in the blank (storage box 10Y in the unfolded state), the positions of the ends of the blank in the Y direction can be aligned, as shown in Figure 9. Consequently, when taking blanks from the material (raw material), the amount of waste from the material is reduced, and multiple blanks can be efficiently taken from a single piece of material.

[0077] Similarly, in the storage box 10Z, the lengths of the flaps 20, 30, 40, and 50 are set to the same length as the second flap 30 and fourth flap 50, which are aligned in the shorter direction (vertical direction) of the right side surface 15. The "reference length" here corresponds to half the width of the right side surface 15 in the shorter direction (vertical direction). As a result, in the blank (storage box 10Z in the unfolded state), the positions of the edges of the blank in the Y direction can be aligned, as shown in Figure 9. Consequently, when taking blanks from the material (raw material), the amount of waste from the material is reduced, and multiple blanks can be efficiently taken from a single piece of material.

[0078] However, in the storage box 10 according to the above embodiment, as shown in Figure 2, a second opening 72 is formed on the right side surface 15, and the tips 20a and 40a of the first flap 20 and the third flap 40 are separated from each other. Therefore, compared to storage box 10Y, where the tips 20a and 40a are in contact with each other, and storage box 10Z, where the tips 30a and 50a are in contact with each other, the length of the first flap 20 and the third flap 40, that is, the aforementioned "standard length," can be made even shorter in storage box 10. In other words, the width of the blank 18 in storage box 10 can be made even narrower in the Y direction than the blank in storage boxes 10Y and 10Z. As a result, when taking blanks 18 from material (raw material), the amount of waste from the material can be reduced, and multiple blanks 18 can be taken more efficiently from one piece of material. Thus, storage box 10 is even superior to storage boxes 10Y and 10Z in terms of efficient use of material. [Explanation of symbols]

[0079] 10, 10X, 10Y, 10Z storage box 11 Bottom part 11a,13d End 11S bottom section 12 Top section 12a,12b,13b,13c,22 part 12S Top surface 13 Front side section (corresponding to the first side section) 13a First target portion 13S Front side section 14. Rear side section (corresponding to the second side section) 14S Rear side section 15 Right side part (equivalent to the third side part) 16. Left side (corresponding to the fourth side) 17 Lid 18 Blank 20. First flap (corresponding to the first part) 20a, 30a, 40a, 50a tip 20S Part that forms the first flap 21 Second Target Part 23 Non-overlapping part 30. Second flap (corresponding to the second section) 30b Tip 30S Part that forms the second flap 31 Third Part 32. Part 4 40. Third flap (corresponding to the third section) 40S Part that forms the third flap 50. Fourth flap (corresponding to the fourth section) 50S Part that forms the 4th flap 61 First Fracture Line 62 Second Fracture Line 63 Third Fracture Line 64. Fracture Line No. 4 65 Fifth Fracture Line 71 First opening 72 Second opening 81 Cut section 91S joint piece C Goods M eye direction P1,P2 points R range

Claims

1. The bottom and top surfaces are arranged in the vertical direction, The first side portion and the second side portion are arranged between the bottom portion and the top portion in the vertical direction, and are aligned in the front-to-back direction. It comprises a third side portion and a fourth side portion arranged between the bottom portion and the top portion in the vertical direction, and aligned in the left-right direction, At least one of the third and fourth side portions has a first portion adjacent to the first side portion and a second portion adjacent to the top portion, Both the first portion and the first side portion are provided with a first break line that spans both of them. The second portion is provided with a second break line extending toward the top surface, The first target portion of the first side portion that is on the top surface side of the first break line is continuous with the second target portion of the first portion that is on the top surface side of the first break line. A storage box in which the top surface is continuous with the first target portion and the third target portion of the second portion that is on the first side surface side of the second break line.

2. Parts of the first part and the second part overlap with each other. The storage box according to claim 1, wherein the first break line is provided in the portion of the first portion that does not overlap with the second portion.

3. The aforementioned side portion of the target is, The third portion adjacent to the second side portion, It further comprises a fourth portion adjacent to the bottom portion, The storage box according to claim 1, wherein the end of the first portion opposite to the first side portion and the end of the third portion opposite to the second side portion are located apart from each other in the front-rear direction, and the end of the second portion opposite to the top surface and the end of the fourth portion opposite to the bottom surface are located apart from each other in the up-down direction, thereby forming a first opening surrounded by the first portion, the second portion, the third portion, and the fourth portion.

4. The storage box according to claim 1, wherein both the third side portion and the fourth side portion are the target side portion.

5. Parts of the first part and the second part overlap with each other, The storage box according to claim 1, wherein the second part is located outside the first part.

6. The storage box according to claim 1, wherein the second break line extends from the end of the second portion opposite to the top surface toward the top surface.

7. The aforementioned target side portion further has a third portion adjacent to the second side portion, The storage box according to claim 1, wherein at least a portion of the second break line overlaps with the end of the third portion opposite to the second side portion when viewed from the left-right direction.

8. The storage box according to claim 1, wherein the second break line has an arc shape that protrudes toward the first side portion.

9. The storage box according to claim 1, wherein the top surface is provided with a third break line extending in the left-right direction.

10. The storage box according to claim 1, wherein at least one of the top surface and the bottom surface is provided with a fourth break line for forming a second opening in the at least one surface.

11. The storage box according to claim 1, wherein the first side surface is provided with two fifth break lines that are inclined toward each other in the left-right direction as they move toward the first break line from the end on the bottom surface side.

12. The aforementioned side surface portion further comprises a third portion continuous with the second side surface portion and a fourth portion continuous with the bottom surface portion. The top surface portion is continuous with the second side portion and the fourth target portion of the second portion that is on the second side portion side of the second break line. The storage box according to claim 1, wherein the third part is fixed to the fourth target part and the fourth part.

13. A blank having a fold line, which, when folded along the fold line, forms a storage box according to any one of claims 1 to 12.

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