BOX, AND BOX MATERIAL

Description

TECHNICAL FIELD

The present disclosure relates to a box and a box material.

BACKGROUND ART

PTL 1 described below discloses an input device used for operating a game device. Articles such as a game device and an input device are shipped in a state where they are stored inside a box including a lid section. By forming such a box by bending a flat plate-shaped member such as corrugated cardboard or cardboard, the manufacturing cost of the box can be reduced.

CITATION LIST

Patent Literature

[PTL 1]

PCT Patent Publication No. WO2014/061362

SUMMARY

Technical Problem

It is desirable to be able to easily take out an article from a box. However, for example, if the outer surface of the article in a state of being stored inside the box is in contact with the inner surface of the box, it may be difficult to take out the article from the box.

An object of the present disclosure is to provide a box from which an article stored inside the box can be easily taken out and a box material that can form the box.

Solution to Problem

A box according to the present disclosure is provided with a storage section and a lid section that covers an upper side of the storage section. The lid section has a top plate section and a first circumferential wall section that surrounds the top plate section. The storage section has a bottom plate section and a second circumferential wall section that surrounds the bottom plate section. The first circumferential wall section is connected to the storage section via a crease. The second circumferential wall section is lower in height than the first circumferential wall section. The lid section further has a supported surface that is arranged below the top plate section and is supported by an upper end of the second circumferential wall section in a state where the lid section is closed. According to this, it becomes possible to easily take out an article stored inside the box.

In addition, a box material according to the present disclosure is a flat plate-shaped box material from which a box including a storage section and a lid section is possible to be formed by bending. The lid section has a top plate section and a first circumferential wall section for surrounding the top plate section. The storage section has a bottom plate section and a second circumferential wall section for surrounding the bottom plate section. The first circumferential wall section is connected to the storage section via a crease in a state where the box is formed. The second circumferential wall section is formed so as to be lower in height than the first circumferential wall section in a state where the box is formed and the lid section is closed. The lid section further has a supported surface that is arranged below the top plate section and is supported by an upper end of the second circumferential wall section in a state where the box is formed and the lid section is closed. According to this, it becomes possible to form a box from which an article stored inside the box can be easily taken out.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1A is a perspective view of a box that is an example of an embodiment of the present disclosure.

FIG. 1B is a perspective view of the box.

FIG. 1C is a perspective view of the box.

FIG. 2 is a bottom view of the box.

FIG. 3 is a cross-sectional view taken along the line III-III depicted in FIG. 2.

FIG. 4 is a side view of the box.

FIG. 5A is a developed view of an outer member configuring the box.

FIG. 5B is a developed view of an inner member configuring the box.

FIG. 6A is a diagram for explaining a method of assembling the box.

FIG. 6B is a diagram for explaining the method of assembling the box.

FIG. 6C is a diagram for explaining the method of assembling the box.

FIG. 6D is a diagram for explaining the method of assembling the box.

FIG. 6E is a diagram for explaining the method of assembling the box.

FIG. 6F is a diagram for explaining the method of assembling the box.

FIG. 6G is a diagram for explaining the method of assembling the box.

DESCRIPTION OF EMBODIMENT

1. Structure of Box

Hereinafter, a box 1 that is an example of an embodiment of the present disclosure will be described. Hereinafter, a state in which the box 1 is placed on a horizontal surface (not illustrated) such as a floor surface will be described, and the directions of X1 and X2 along the horizontal surface will be referred to as a left direction and a right direction, respectively. Similarly to the above, the directions (the directions perpendicular to the directions of X1 and X2) of Y1 and Y2 along the horizontal surface will be referred to as front and rear, respectively. In addition, the directions of Z1 and Z2 perpendicular to the horizontal surface will be referred to as up and down, respectively. However, these directions are defined to explain the shapes and relative positional relation of elements such as members and parts of the box 1, and do not limit a posture of the box 1 relative to the horizontal surface.

FIG. 1A to FIG. 1C are perspective views of the box 1. FIG. 1A depicts a state in which the box 1 is closed, and FIG. 1B and FIG. 1C depict states in which the box 1 is opened. FIG. 2 is a bottom view of the box 1 in a state where the box 1 is closed, and FIG. 3 is a cross-sectional view taken along the line III-III depicted in FIG. 2. FIG. 3 depicts a state in which an article 2 is stored inside the box 1. FIG. 4 is a side view of the box 1. FIG. 4 depicts a state in which the box 1 is opened and the article 2 is stored inside the box 1.

As depicted in FIG. 1A, in a state where the box 1 is closed, the box 1 has a rectangular parallelepiped shape. As depicted in FIG. 3 and FIG. 4, the article 2 such as an electronic product is stored inside the box 1. As depicted in FIG. 4, the box 1 has a storage section 20 in which the article 2 is stored and a lid section 10 connected to the storage section 20. As depicted in FIG. 1A and FIG. 3, in a state where the box 1 is closed, the lid section 10 covers the upper side of the storage section 20. The lid section 10 can be moved between a closed position (see FIG. 1A) at which the storage section 20 is closed by covering the upper side of the storage section 20 and an open position (see FIG. 1C) at which the storage section 20 is opened. As depicted in FIG. 1B and FIG. 1C, in a state where the box 1 is placed on a horizontal surface such as a floor surface, the lid section 10 can be moved at an angle θ2 (an angle larger than 90 degrees) larger than an angle θ1 that is 90 degrees. Thus, when the article 2 is stored in the storage section 20 or the article 2 is taken out from the storage section 20, it is possible to suppress the lid section 10 from interfering with the article 2. In FIG. 1B and FIG. 1C, each of the angles θ1 and θ2 represents an angle formed by a straight line along an edge of a lower end (a first left wall section 12L to be described later) of the lid section 10 and a straight line along an edge of an upper end (a second left wall section 22L to be described later) of the storage section 20.

As depicted in FIG. 1B, FIG. 1C, and FIG. 3, a storage space S1 in which at least a part (the lower side of the article 2) of the article 2 is stored is defined inside the storage section 20. In addition, a storage space S2 in which at least a part (the upper side of the article 2) of the article 2 is stored is also defined inside the lid section 10. As depicted in FIG. 1B and FIG. 1C, in a state where the lid section 10 is opened, the storage space S1 defined inside the storage section 20 is exposed upward. In addition, as depicted in FIG. 3, a height H1 in an up-down direction of the storage space S1 defined inside the storage section 20 is lower than a height H2 in the up-down direction of the article 2. Therefore, as depicted in FIG. 4, in side view of the box 1 in a state where the lid section 10 is opened, the upper side of the article 2 is exposed from the storage section 20. Thus, it becomes easy to touch a right surface and a left surface on the upper side of the article 2 accommodated in the storage section 20 with fingers, and the article 2 can be easily taken out from the storage section 20.

As depicted in FIG. 2 and FIG. 3, the storage section 20 in which the article 2 is stored has a plate-like bottom plate section 21 configuring a lower end of the box 1. In addition, as depicted in FIG. 1A, the lid section 10 covering 10 of the storage section has a plate-like top plate section 11 configuring an upper end of the box 1 in a state where the box 1 is closed. The lid section 10 has a first circumferential wall section 12 surrounding the top plate section 11. The storage section 20 has a second circumferential wall section 22 surrounding the bottom plate section 21. In a state where the lid section 10 is closed, the first circumferential wall section 12 of the lid section 10 covers the outer surface of the second circumferential wall section 22 of the storage section 20.

As depicted in FIG. 2, the bottom plate section 21 is a square. In addition, as depicted in FIG. 1A, the top plate section 11 is also a square. As depicted in FIG. 1B, the first circumferential wall section 12 surrounding the top plate section 11 has a first rear wall section 12B, a first front wall section 12F, a first left wall section 12L, and a first right wall section 12R. In the first circumferential wall section 12, the first rear wall section 12B and the first front wall section 12F are separated from each other in a front-rear direction (a first direction perpendicular to the up-down direction), and the first left wall section 12L and the first right wall section 12R extend from the first rear wall section 12B to the first front wall section 12F. The first left wall section 12L and the first right wall section 12R are separated from each other in a left-right direction. In the present embodiment, the first rear wall section 12B corresponds to a first side wall section of the present disclosure, the first front wall section 12F corresponds to a second side wall section of the present disclosure, and the first left wall section 12L or the first right wall section 12R corresponds to a third side wall section of the present disclosure. In addition, the second circumferential wall section 22 surrounding the bottom plate section 21 has a second rear wall section 22B, a second front wall section 22F, a second left wall section 22L, and a second right wall section 22R. In the second circumferential wall section 22, the second rear wall section 22B and the second front wall section 22F are separated from each other in the front-rear direction, and the second left wall section 22L and the second right wall section 22R extend from the second rear wall section 22B to the second front wall section 22F. The second left wall section 22L and the second right wall section 22R are separated from each other in the left-right direction.

As depicted in FIG. 1A, FIG. 1B, and FIG. 3, a height D2 in the up-down direction of the second circumferential wall section 22 formed in the storage section 20 is lower than a height D1 of the first circumferential wall section 12 formed in the lid section 10. In other words, the height D1 in the up-down direction of the first circumferential wall section 12 is higher than the height D2 of the second circumferential wall section 22. Therefore, as depicted in FIG. 3, the storage space S2 for storing the upper side of the article 2 is defined inside the lid section 10. With such a configuration, as depicted in FIG. 4, in side view of the box 1 in a state where the lid section 10 is opened, the article 2 stored in the storage section 20 can be exposed from the storage section 20, and it is possible to suppress the lid section 10 from interfering with the article 2 when the lid section 10 is closed.

As depicted in FIG. 1C and FIG. 3, the lid section 10 has a supported surface 14A. In a state where the lid section 10 is closed, the supported surface 14A is arranged below the top plate section 11 and is supported by an upper end of the second circumferential wall section 22 formed in the storage section 20. With such a configuration, in a state where the lid section 10 is closed, it is possible to suppress the lid section 10 from sinking downward, and it is possible to suppress the external shape of the box 1 from deforming. In the lid section 10, the supported surface 14A contacts the first front wall section 12F (second side wall section) and is formed inside the first front wall section 12F. Thus, the supported surface 14A is supported by the second front wall section 22F formed on the front side of the second circumferential wall section 22. As depicted in FIG. 3, the sum of a distance D3 between the top plate section 11 and the supported surface 14A in the up-down direction and the height D2 of the second front wall section 22F is equal to the height D1 of the first front wall section 12F. Thus, in a state where the lid section 10 is closed, the positions of a lower end of the lid section 10 (more specifically, the first front wall section 12F) and a lower end of the storage section 20 (more specifically, the second front wall section 22F) can be aligned.

As depicted in FIG. 1C and FIG. 3, the lid section 10 has an inclined surface 15A extending obliquely upward and rearward (the direction toward the first rear wall section 12B) from the supported surface 14A. In addition, the lid section 10 has a flat surface 16A extending rearward from the inclined surface 15A. In the example depicted in FIG. 3, the article 2 has a curved surface C over the entire region of the upper end thereof, and in a state where the lid section 10 is closed, the inclined surface 15A and the flat surface 16A face the curved surface C of the article 2. With such a configuration, when the box 1 is inclined, the article 2 can be pressed at least at two places, that is, the inclined surface 15A and the flat surface 16A.

As depicted in FIG. 1B and FIG. 3, the storage section 20 has a middle plate section 23 configuring a bottom section of the storage space S1. As depicted in FIG. 3, the middle plate section 23 is arranged along the bottom plate section 21 and forms a space S3 with the bottom plate section 21. Articles such as instruction manuals and warranties can be stored also in the space S3.

2. Relation With Developed View

FIG. 5A and FIG. 5B are plan views of flat plate-shaped box materials configuring the box 1. FIG. 5A is a developed view of an outer member 8 that is a constitutional element of the box 1, and FIG. 5B is a developed view of an inner member 9 that is another constitutional element of the box 1. The box materials depicted in FIG. 5A and FIG. 5B may include, for example, cardboard or corrugated cardboard, or may include plastic. The outer member 8 is formed by folding the box material depicted in FIG. 5A along creases. As similar to the above, the inner member 9 is formed by folding the box material depicted in FIG. 5B along creases. As will be described later, the box 1 is formed by attaching the inner member 9 to the outer member 8. In FIG. 5A, FIG. 5B, and FIG. 6A to FIG. 6G to be described later, dotted lines indicate creases of mountain folds, and dashed lines indicate creases of valley folds.

Among the constitutional elements of the box 1, the middle plate section 23 and the second rear wall section 22B of the storage section 20 are formed by the inner member 9. Further, elements such as the lid section 10 and the bottom plate section 21, the second front wall section 22F, the second left wall section 22L, and the second right wall section 22R of the storage section 20 are formed by the outer member 8. As depicted in FIG. 5A and FIG. 5B, in the first front wall section 12F, the first left wall section 12L, the first right wall section 12R, and the first rear wall section 12B configuring the first circumferential wall section 12 of the lid section 10, a part configuring the outer side and a part configuring the inner side of each wall section are connected to each other via one crease. In addition, as depicted in FIG. 5A, also in the second front wall section 22F, the second left wall section 22L, and the second right wall section 22R configuring the second circumferential wall section 22 of the storage section 20, a part configuring the outer side and a part configuring the inner side of each wall section are connected to each other via one crease.

As depicted in FIG. 5A, the first front wall section 12F has an outer wall section 121F and an inner wall section 122F that are connected to each other via a crease, the first left wall section 12L has an outer wall section 121L and an inner wall section 122L that are connected to each other via a crease, and the first right wall section 12R has an outer wall section 121R and an inner wall section 122R that are connected to each other via a crease. The outer wall sections 121F, 121L, 121R, and 121B are connected to the top plate section 11 via creases.

As depicted in FIG. 5A, the second front wall section 22F has an outer wall section 221F and an inner wall section 222F that are connected to each other via a crease, the second left wall section 22L has an outer wall section 221L and an inner wall section 222L that are connected to each other via a crease, and the second right wall section 22R has an outer wall section 221R and an inner wall section 222R that are connected to each other via a crease. The outer wall sections 221F, 221L, and 121R are connected to the bottom plate section 21 via creases. A slit K is formed in the bottom plate section 21. By bending a part of the bottom plate section 21 defined along the slit K along a crease, a hole connected to the space S3 (see FIG. 4) can be formed. Articles such as instruction manuals and warranties can be stored in the space S3 from this hole. In addition, as depicted in FIG. 5B, the second rear wall section 22B also has an outer wall section 221B and an inner wall section 222B that are connected to each other via a crease.

As depicted in FIG. 5A, the first rear wall section 12B configuring the first circumferential wall section 12 of the lid section 10 has an outer wall section 121B and an inner wall section 122B. In the developed view of the outer member 8 depicted in FIG. 5A, the outer wall section 121B and the inner wall section 122B of the first rear wall section 12B are separated from each other in the front-rear direction. In the developed view of the outer member 8, a supported section 14 in which the supported surface 14A is formed, an inclined section 15 in which the inclined surface 15A is formed, and a flat section 16 in which the flat surface 16A is formed are arranged between the outer wall section 121B and the inner wall section 122B. The supported surface 14A, the inclined surface 15A, and the flat surface 16A are defined on the back surface of the flat plate-shaped box material depicted in FIG. 5A.

In the first circumferential wall section 12 of the lid section 10, the first left wall section 12L is formed by bending the inner wall section 122L relative to the outer wall section 121L. Thus, a gap is formed between the outer wall section 121L and the inner wall section 122L of the first left wall section 12L. As similar to this, a gap is also formed between the outer wall section 121R and the inner wall section 122R of the first right wall section 12R. As depicted in FIG. 5A, the first rear wall section 12B and the first front wall section 12F have insertion sections 31L and 32L inserted into the gap formed in the first left wall section 12L, respectively. In addition, the first front wall section 12F and the first rear wall section 12B have insertion sections 31R and 32R inserted into the gap formed in the first right wall section 12L, respectively. The insertion sections 31L and 31R are connected to the left end and the right end of the outer wall section 121B configuring the first rear wall section 12B via creases, respectively. The insertion sections 32L and 32R are connected to the left end and the right end of the outer wall section 121F configuring the first front wall section 12F via creases, respectively. Thus, by inserting the insertion sections 31L and 32L formed in the first rear wall section 12B and the first front wall section 12F, respectively, into the gap formed in the first left wall section 12L, and inserting the insertion sections 31R and 32R formed in the first rear wall section 12B and the first front wall section 12F, respectively, into the gap formed in the first right wall section 12R, the relative positions of the first rear wall section 12B, the first front wall section 12F, the first left wall section 12L, and the first right wall section 12R can be maintained in the first circumferential wall section 12.

In the second circumferential wall section 22 of the storage section 20, the second left wall section 22L is also formed by bending the inner wall section 222L relative to the outer wall section 221L. Thus, a gap is also formed between the outer wall section 221L and the inner wall section 222L of the second left wall section 22L. As similar to this, gaps are also formed between the outer wall section 221R and the inner wall section 222R of the second right wall section 22R and between the outer wall section 221F and the inner wall section 222F of the second front wall section 22F. As depicted in FIG. 5A, the second left wall section 22L and the second right wall section 22R have insertion sections 41L and 41R inserted into the gap formed in the second front wall section 22F, respectively. The insertion section 41L is connected to the front end of the outer wall section 221L configuring the second left wall section 22L via a crease. The insertion section 41R is connected to the front end of the outer wall section 221R configuring the second right wall section 22R via a crease. In addition, the second front wall section 22F has insertion sections 42L and 42R inserted into the gap formed in the second left wall section 22L and the gap formed in the second right wall section 22R, respectively. The insertion section 42L is connected to the left end of the inner wall section 222F configuring the second front wall section 22F via a crease, and the insertion section 42R is connected to the right end of the inner wall section 222F via a crease. Thus, by inserting the insertion sections 41L and 41R formed in the second left wall section 22L and the second right wall section 22R, respectively, into the gap formed in the second front wall section 22F, and inserting the insertion sections 42L and 42R formed in the second front wall section 22F into the gap formed in the second left wall section 22L and the gap formed in the second right wall section 22R, respectively, the relative positions of the second front wall section 22F, the second left wall section 22L, and the second right wall section 22R can be maintained in the second circumferential wall section 22.

As depicted in FIG. 5B, the second rear wall section 22B of the storage section 20 provided in the inner member 9 has an insertion section 43L connected to the left end of the outer wall section 221B via a crease, and an insertion section 43R connected to the right end of the outer wall section 221B via a crease. The insertion section 43L is inserted into the gap formed between the outer wall section 221L and the inner wall section 222L of the second left wall section 22L. The insertion section 43R is inserted into the gap formed between the outer wall section 221R and the inner wall section 222R of the second right wall section 22R. Thus, as depicted in FIG. 6G to be described later, the inner member 9 can be attached to the outer member 8, and the relative positions of the second rear wall section 22B, the second left wall section 22L, and the second right wall section 22R can be maintained.

As depicted in FIG. 3, the first circumferential wall section 12 of the lid section 10 is connected to the storage section 20 via a crease. As depicted in FIG. 5A, the first rear wall section 12B (more specifically, the outer wall section 121B) forming the first circumferential wall section 12 is connected to the storage section 20 (more specifically, the bottom plate section 21 configuring the storage section 20) via a crease. In addition, the supported section 14 in which the supported surface 14A supported by the second circumferential wall section 22 (more specifically, the second front wall section 22F) formed in the storage section 20 is formed is connected to the inner wall section 122F of the first front wall section 12F (second side wall section) formed in the lid section 10 via a crease.

As depicted in FIG. 5A, in the storage section 20, the outer wall sections 221F, 221L, and 221R are connected to the bottom plate section 21 via creases. In addition, in the lid section 10, the outer wall sections 121F, 121L, 121R, and 121B are connected to the top plate section 11 via creases. In the lid section 10, the inclined section 15 is connected to the supported section 14 via a crease, and the flat section 16 is connected to the inclined section 15 via a crease. The inner wall section 122B of the first rear wall section 12B formed in the lid section 10 is connected to the flat section 16 via a crease. In the developed view of the outer member 8 depicted in FIG. 5A, the outer wall section 121B of the first rear wall section 12B is positioned at the front end of the lid section 10, and the inner wall section 122B of the first rear wall section 12B is positioned at the rear end of the lid section 10.

As depicted in FIG. 5A, the inner wall sections 222F, 222L, and 222R formed in the storage section 20 and the inner wall section 122B formed in the lid section 10 have anti-slipping pieces 51F, 51L, 51R, and 51B, respectively, connected to these sections via creases. The anti-slipping pieces 51F, 51L, 51R, and 51B are brought into contact with the upper surface of the bottom plate section 21, so that the inner wall sections 222F, 222L, 222R, and 122B connected to the ends thereof can be suppressed from moving (slipping) to the inside of the storage section 20. In addition, anti-slipping pieces 52L and 52R connected to the inclined section 15 via creases of valley folds are formed at the left end and the right end of the inclined section 15, respectively. As depicted in FIG. 3, the edges of the anti-slipping pieces 52L and 52R abut on the top plate section 11 and the first front wall section 12F, so that the inclined section 15 can be suppressed from moving (slipping) inside the lid section 10.

As depicted in FIG. 5A, the inner wall section 222L forming the second left wall section 22L and the inner wall section 222R forming the second right wall section 22R have pressing pieces 54L and 54R at the front ends thereof, respectively. The pressing pieces 54L and 54R push inward the insertion sections 43L and 43R (see FIG. 5B, FIG. 6F, and FIG. 6G) of the inner member 9 accommodated in the gap of the second left wall section 22L and the gap of the second right wall section 22R, respectively. Thus, it is possible to suppress the inner member 9 from being removed from the outer member 8. In addition, adjustment pieces 55L and 55R for uniformizing the thicknesses of the second left wall section 22L and the second right wall section 22R are provided at the rear ends of the inner wall sections 222L and 222R.

As depicted in FIG. 5B, the middle plate section 23 has support pieces 53F, 53L, and 53R connected to the front end, the left end, and the right end of the middle plate section 23 via creases, respectively. As depicted in FIG. 3, the support pieces 53F, 53L, and 53R are bent relative to the middle plate section 23, so that the support pieces 53F, 53L, and 53R support the middle plate section 23 and secure the space S3 with the bottom plate section 21. Widths (heights) E1, E2, and E3 of the support pieces 53F, 53L, and 53R are all equal. In addition, as depicted in FIG. 5B, in the second rear wall section 22B connected to the middle plate section 23 via a crease, a width E4 of the outer wall section 221B is larger than a width E5 of the inner wall section 222B. The difference between the width E4 and the width E5 in the second rear wall section 22B is equal to the widths E1, E2, and E3 of the support pieces 53F, 53L, and 53R. Thus, the middle plate section 23 can be horizontally arranged inside the storage section 20.

The insertion sections 31L and 31R formed in the first rear wall section 12B of the lid section 10 function as movable sections that can move relative to the first left wall section 12L or the first right wall section 12R. As depicted in FIG. 1A to FIG. 1C, the insertion sections 31L and 31R as the movable sections are allowed to move between a first position (see FIG. 1A and FIG. 1B) in which the entirety thereof is arranged in the gap of the first left wall section 12L or the gap of the first right wall section 12R and a second position (see FIG. 1C) in which a part thereof is exposed from the gap of the first left wall section 12L or the gap of the first right wall section 12R. As depicted in FIG. 1A, when the lid section 10 is in the closed position, the insertion sections 31L and 31R are in the first position in which the entirety thereof is arranged inside the gaps. In addition, as depicted in FIG. 1C, when the insertion sections 31L and 31R are in the second position in which a part thereof is exposed from the gaps, the lid section 10 is in the open position. As described above, by allowing the movement of the insertion sections 31L and 31R relative to the gap formed in the first left wall section 12L and the gap formed in the first right wall section 12R in the lid section 10, it is possible to maintain postures of the first left wall section 12L and the first right wall section 12R while allowing the opening and closing of the lid section 10. In addition, as depicted in FIG. 1C and FIG. 5A, the edges of the insertion sections 31L and 31R are formed in an arc shape, so that the lid section 10 can be moved at the angle θ2 (see FIG. 1C) larger than 90 degrees.

3. Assembly of Box

FIG. 6A to FIG. 6G are diagrams each explaining a method of assembling the box 1. It should be noted that, in FIG. 6A to FIG. 6G, the illustration of the slit K provided in the bottom plate section 21 is omitted.

First, as depicted in FIG. 6A, in the box material (see FIG. 5A) of the flat plate-shaped outer member 8, the insertion sections 31L and 31R are bent upward relative to the outer wall section 121B. As similar to this, the insertion sections 32L and 32R are bent upward relative to the outer wall section 121F. In addition, the anti-slipping pieces 52L and 52R are also bent upward relative to the inclined section 15. Next, as depicted in FIG. 6A and FIG. 6B, the top plate section 11 of the lid section 10 is bent upward relative to the outer wall section 121B, and the outer wall section 121F is bent forward relative to the top plate section 11.

Next, as depicted in FIG. 6B and FIG. 6C, the outer wall section 121L is bent forward relative to the top plate section 11, and the inner wall section 122L is bent rearward relative to the outer wall section 121L, so that the first left wall section 12L of the lid section 10 is formed. In this step, the insertion sections 31L and 32L on the left side are accommodated in the gap formed between the outer wall section 121L and the inner wall section 122L (the gap formed in the first left wall section 12L). As similar to this, the outer wall section 121R and the inner wall section 122R are bent along a crease, so that the first right wall section 12R of the lid section 10 is formed. In this step, the insertion sections 31R and 32R on the right side are accommodated in the gap formed between the outer wall section 121R and the inner wall section 122R (the gap formed in the first right wall section 12R).

Next, as depicted in FIG. 6C and FIG. 6D, the inner wall section 122F is bent rearward relative to the outer wall section 121F, and the supported section 14, the inclined section 15, the flat section 16, and the inner wall section 122B are bent along creases, so that these sections and the anti-slipping pieces 52L and 52R bent relative to the inclined section 15 are accommodated inside the lid section 10. Thus, the first front wall section 12F, the first rear wall section 12B, and the storage space S2 of the lid section 10 are formed. As depicted in FIG. 6C, the anti-slipping piece 51B connected to the inner wall section 122B via a crease is arranged outside the storage space S2 and is brought into contact with the bottom plate section 21.

Next, as depicted in FIG. 6D and FIG. 6E, each of the outer wall sections 221L and 221R is bent upward relative to the bottom plate section 21. Then, the insertion sections 41L and 41R are bent rearward relative to the outer wall sections 221L and R, respectively. Next, as depicted in FIG. 6E and FIG. 6F, the outer wall section 221F is bent upward relative to the bottom plate section 21, and the inner wall section 222F is bent downward relative to the outer wall section 221F, so that the second front wall section 22F of the storage section 20 is formed. In this step, the insertion sections 41L and 41R positioned on the front side of the storage section 20 are accommodated in the gap formed between the outer wall section 221F and the inner wall section 222F (the gap formed in the second front wall section 22F). The anti-slipping piece 51F is bent inward relative to the inner wall section 222F and is brought into contact with the bottom plate section 21.

Next, as depicted in FIG. 6F and FIG. 6G, the pressing piece 54L and the adjustment piece 55L are bent relative to the inner wall section 222L, and the inner wall section 222L is bent downward relative to the outer wall section 221L, so that the second left wall section 22L of the storage section 20 is formed. The pressing piece 54L and the adjustment piece 55L are accommodated in the gap formed between the outer wall section 221L and the inner wall section 222L (the gap formed in the second left wall section 22L). As similar to this, the pressing piece 54R, the adjustment piece 55R, and the inner wall section 222R are bent along creases, so that the second right wall section 22R of the storage section 20 is formed. The anti-slipping pieces 51L and 51R are bent inward relative to the inner wall sections 222L and 222R and are brought into contact with the bottom plate section 21.

Next, the box material (see FIG. 5B) of the flat plate-shaped inner member 9 is bent along creases, so that the inner member 9 depicted in FIG. 6G is formed. Finally, the insertion sections 43L and 43R of the inner member 9 are inserted into the gap formed in the second left wall section 22L and the gap formed in the second right wall section 22R, respectively, so that the inner member 9 is attached to the outer member 8. Thus, the middle plate section 23 and the second rear wall section 22B are formed in the storage section 20. By the above steps, the box 1 can be assembled from the box material such as plate-like cardboard or corrugated cardboard.

The outer surface and the inner surface of the box 1 formed as described above are formed only of the back surface of the flat plate-shaped box material depicted in FIG. 5A or the front surface of the flat plate-shaped box material depicted in FIG. 5B, except for the insertion sections 31L and 31R as the movable sections. In the lid section 10, the upper surface of the top plate section 11, the outer surface and the inner surface of the first circumferential wall section 12, and the supported surface 14A, the inclined surface 15A, and the flat surface 16A on the back side of the lid section 10 are a part of the back surface (first surface) of the box material depicted in FIG. 5A. In the storage section 20, the lower surface of the bottom plate section 21 and the outer surface and the inner surface of a part (the second front wall section 22F, the second left wall section 22L, and the second right wall section 22R) of the second circumferential wall section 22 are also a part of the back surface of the box material depicted in FIG. 5A. In addition, in the storage section 20, the upper surface of the middle plate section 23 and the inner surface and the outer surface of the second rear wall section 22B of the second circumferential wall section 22 are a part of the front surface of the flat plate-shaped box material depicted in FIG. 5B. Therefore, for example, in the case where the inner surface and the outer surface of the box 1 are colored or coated, only one surface of the flat plate-shaped box material needs to be colored or coated, and thus, the manufacturing cost of the box 1 can be reduced.

4. Summary

As described above, as depicted in FIG. 6G, the box 1 described in the present embodiment is formed by combining the outer member 8 formed by bending the plate-like box material and the inner member 9 formed by bending the plate-like box material. As depicted in FIG. 1A to FIG. 1C, the box 1 includes the storage section 20 for storing the article 2 and the lid section 10 for covering the upper side of the storage section 20. The lid section 10 has the top plate section 11 and the first circumferential wall section 12 surrounding the top plate section 11, and the storage section 20 has the bottom plate section 21 and the second circumferential wall section 22 surrounding the bottom plate section 21. As depicted in FIG. 3 and FIG. 5A, the first circumferential wall section 12 has the first rear wall section 12B connected to the bottom plate section 21 via a crease. The second circumferential wall section 22 of the storage section 20 is lower in height than the first circumferential wall section 12 of the lid section 10, and the storage spaces S1 and S2 are formed inside the storage section 20 and inside the lid section 10, respectively. Thus, the article 2 is exposed from the storage section 20 in side view (see FIG. 4) of the box in a state where the lid section 10 is opened, and the article 2 can be easily taken out from the storage section 20.

In addition, as depicted in FIG. 3, the lid section 10 has the supported surface 14A that is arranged below the top plate section 11 and is supported by an upper end of the second circumferential wall section 22 formed in the storage section 20 in a state where the lid section 10 is closed. In a state where the lid section 10 closed, the second circumferential wall section 22 of the storage section 20 supports the supported surface 14A of the lid section 10, so that it is possible to suppress the lid section 10 from sinking downward relative to the storage section 20, and it is possible to suppress the external shape of the box 1 from deforming.

It should be noted that the present invention is not limited to the above-described embodiment. Although the shape of the box 1 described in the embodiment is a square in plan view, the shape of the box 1 in plan view may be, for example, a polygon such as a triangle or a pentagon, or may have an arc-shaped part. Even in this case, by making the height of the second circumferential wall section 22 of the storage section 20 lower than the height of the first circumferential wall section 12 of the lid section 10, the article 2 can be easily taken out from the inside of the storage section 20. In addition, in a state where the lid section 10 is closed, the supported surface 14A supported by the second circumferential wall section 22 of the storage section 20 is provided in the lid section 10, so that it is possible to suppress the lid section 10 from sinking downward relative to the storage section 20.

5. Supplementary Note

• • (1) As described above, a box 1 that is an example of an embodiment of the present disclosure is provided with a storage section 20 and a lid section 10 that covers the upper side of the storage section 20. The lid section 10 has a top plate section 11 and a first circumferential wall section 12 that surrounds the top plate section 11. The storage section 20 has a bottom plate section 21 and a second circumferential wall section 22 that surrounds the bottom plate section. The first circumferential wall section 12 is connected to the storage section 20 via a crease. The second circumferential wall section 22 is lower in height than the first circumferential wall section 12. The lid section 10 further has a supported surface 14A that is arranged below the top plate section 11 and is supported by an upper end of the second circumferential wall section 22 in a state where the lid section 10 is closed. According to this, it becomes possible to easily take out an article 2 stored inside the box 1.
  • (2) In the box 1 according to (1) above, the first circumferential wall section 12 may include a first rear wall section 12B (first side wall section) and a first front wall section 12F (second side wall section) that are separated from each other in the front-rear direction (first direction perpendicular to the up-down direction). The first rear wall section 12B may be connected to the storage section 20 via a crease. The supported surface 14A may be formed inside the first front wall section 12F.
  • (3) In the box 1 according to (2) above, the first front wall section 12F may have an outer wall section 121F that configures the outer side of the lid section 10 and an inner wall section 122F that is connected to the outer wall section 121F via a crease and configures the inner side of the lid section 10. The supported surface 14A may be connected to the inner wall section 122F via a crease.
  • (4) In the box 1 according to (2) or (3) above, the lid section 10 may further have an inclined surface 15A that extends obliquely upward from the supported surface 14A toward the first rear wall section 12B.
  • (5) In the box 1 according to (4) above, at least a part of the storage section 20 and at least a part of the lid section 10 may be formed by bending a flat plate-shaped member having a first surface. The upper surface of the top plate section 11, the supported surface 14A, and the inclined surface 15A may be a part of the first surface.
  • (6) In the box 1 according to any one of (2) to (5) above, the first circumferential wall section 12 may have a first left wall section 12L (third side wall section) that extends from the first side wall section 12 to the first front wall section 12F. The first left wall section 12L may have an outer wall section 121L that configures the outer side of the lid section 10, an inner wall section 122L that is connected to the outer wall section 121L via a crease and configures the inner side of the lid section 10, and a gap formed between the inner wall section and the outer wall section. The lid section 10 may have an insertion section 31L (movable section) inserted into the gap. The insertion section 31L may be allowed to move between a first position in which the entirety of the insertion section 31L is arranged in the gap and a second position in which a part of the insertion section 31L is exposed from the gap. When the lid section 10 is in a closed position, the insertion section 31L may be in the first position. When the insertion section 31L is in the second position, the lid section 10 may be in an open position.