JP2022079447A - Thin storage box - Google Patents

Abstract

To provide a thin storage box that employs corner pasting and achieves good pasting.SOLUTION: A thin storage box 1 includes: a rectangular bottom face paperboard 11; a rear face paperboard 14 that continues to a rear end side 11d of the bottom face paperboard 11; an end face paperboard 13 that continues to a left side 11b of the bottom face paperboard 11; a corner paperboard 17B that continues to the rear face paperboard 14 and faces the end face paperboard 13; and a lateral flap 20 that continues opposite to the bottom face paperboard 11 at the end face paperboard 13. There is a foldable and stackable area 22B provided at the ends of the end face paperboard 13 and the lateral flap 20, which can be folded and stacked through an oblique folding line L14. The corner paperboard 17B includes: a communicated part 18B that continues to a side 14b of the rear face paperboard 14 and has the same width as the side 14b; and a protruding part 19B that protrudes upward from the communicated part 18B. The protruding part 19B is pasted to the foldable and stackable area 22B and is not pasted to the foldable and stackable area 22B.SELECTED DRAWING: Figure 8

Description

Application for application of Article 30, Paragraph 2 of the Patent Law Sales date: March 30, 2nd year of Reiwa Sales location: Lcode Co., Ltd. (1-5-5 Nishi-Shinsaibashi, Chuo-ku, Osaka-shi, Osaka, 6th floor, Urban BLD Shinsaibashi)

The present invention relates to a thin storage box.

Conventionally, there has been known a storage box in which a plate blank having a predetermined shape is bent to form a folded state, and the box can be assembled into a box shape by hand from the folded state. As such a storage box, as in Patent Document 1 below, a box in which corners with glued corners on the bottom surface are used is known. In the storage box (accessory storage box) of Patent Document 1, so-called four-corner pasting is adopted in which four corners of the bottom surface are corner-pasted. In this storage box, four corners can be formed by manually raising (standing up) the four side plates from the folded state (the state shown in FIGS. 3 to 7 of Patent Document 1). , Can be easily assembled in a box shape.

On the other hand, Patent Document 2 below discloses a thin packaging box. In this packing box, the left and right flaps are locked to the corresponding flap locking portions without gluing, thereby forming and sealing the packing box.

Jitsuto 3214493 bulletin Japanese Unexamined Patent Publication No. 2016-37301

In the method described in Patent Document 2, it takes time and effort to assemble a storage box (packaging box). In order to facilitate assembly, the inventor of the present application is considering realizing a thin storage box by adopting corner pasting.

However, if corner pasting is adopted in a thin storage box, the width in the height direction of the corner plate glued to the folding piece of the side plate is narrow, so that the corner plate and the corner plate are to be joined (side plate, etc.). ) May not be able to secure a sufficient area for gluing. In this case, good gluing cannot be achieved, and as a result, the joint between the corner plate and the side plate may not be firmly maintained.

Therefore, one object of the present invention is to provide a thin storage box in which corner pasting is adopted and good gluing is achieved.

The present invention is a thin storage box that is formed in a folded state by bending a plate blank having a predetermined shape and can be assembled into a box shape by hand from the folded state. The first side plate connected to the side surface of 1, the second side plate connected to the second side side adjacent to the first side side in the bottom plate, and the first side plate connected to the first side plate, said. A corner plate facing the second side surface plate and a horizontal flap connected to the side opposite to the bottom plate in the second side surface plate are included, and the end portions of the second side surface plate and the horizontal flap are obliquely formed. A foldable area that can be folded via the fold line is provided, and the corner plate is connected to the side side of the first side plate and has the same width as the side side, and the connecting portion is upward. Provided is a thin storage box having a protruding portion, wherein the protruding portion is glued to the folded region.

In one embodiment of the invention, the articulated portion is not glued to the folded region.

In one embodiment of the present invention, the protruding portion is connected to the connecting portion via a folding line.

According to the present invention, it is possible to provide a thin storage box in which corner pasting is adopted and good gluing is achieved.

It is a perspective view of the thin storage box (sealed state) which concerns on one Embodiment of this invention. It is a top view which shows the folded state of the thin storage box. It is a perspective view which shows the assembled state of the thin storage box. It is a development view of the thin storage box. It is an enlarged development view for demonstrating the front corner paperboard and the folding area. It is an enlarged development view for demonstrating the rear corner paperboard and the folding area. It is a top view for demonstrating the assembly of the thin storage box. It is an enlarged perspective view which shows the main part of FIG.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a perspective view of a thin storage box 1 according to an embodiment of the present invention. FIG. 2 is a plan view showing a folded state of the thin storage box 1. FIG. 3 is a perspective view showing an assembled state of the thin storage box 1.

The thin storage box 1 is a box for storing thin containers such as books and documents (width in the vertical direction shown in FIG. 1). The thin storage box 1 has a size corresponding to, for example, A4 size, and its thickness is within 25 mm. Therefore, the thin storage box 1 can be posted to the post of a detached house or an apartment house.

The thin storage box 1 includes a bottomed box-shaped main body portion 2 having an upper opening 2a (see FIG. 3) and a lid 3 that closes the upper opening 2a of the main body portion 2. The bottom portion 2b of the main body portion 2 is provided with two front corner portions 2c and two rear corner portions 2d. The thin storage box 1 is formed by bending and gluing a paperboard blank (board blank) 4 (see FIG. 4), which will be described later. In this specification, the opening side of the lid 3 is referred to as the front, and the hinge side of the lid 3 is referred to as the rear. Further, the lid 3 side will be referred to as the upper side, and the bottom portion 2b side of the main body portion 2 will be described as the lower side.

The thin storage box 1 is sold in a retail store or a delivery company in the folded state shown in FIG. 2, for example. Then, the purchaser who purchased from the retail store or the delivery company assembles the folded thin storage box 1 into the assembled state shown in FIG. The purchaser stores a thin container such as a book or a document in the thin storage box 1 in the assembled state from the upper opening 2a, and then closes the upper opening 2a with the lid 3. Then, by inserting the front flap 26 into the inside of the front surface 1b (front paperboard 12) and gluing the lower flap 25 to the top surface 1f, the sealed state of the thin storage box 1 is realized as shown in FIG. Will be done.

FIG. 4 is a developed view of the thin storage box 1 (that is, a plan view of the paperboard blank 4 before being assembled as the thin storage box 1). FIG. 5 is an enlarged development view for explaining the front corner paperboard 17A and the folded region 22A. FIG. 6 is an enlarged development view for explaining the rear corner paperboard 17B and the folded region 22B.

As shown in FIG. 4, the paperboard blank 4 is formed by punching a flat paper board into a predetermined shape and adding fold lines (ruled lines) such as valley fold lines and mountain fold lines at predetermined positions. Most of the surfaces shown in FIG. 4 are inner surfaces in the assembled thin storage box 1, and the opposite surface is an outer surface. In other words, all the inner surfaces of the thin storage box 1 after assembly are the surfaces shown in FIG. The paperboard blank 4 is symmetrical. In FIGS. 4 to 6, the valley fold line is indicated by a broken line, and the mountain fold line is indicated by a alternate long and short dash line (the same applies to FIGS. 2 and 7).

As shown in FIG. 4, the paperboard blank 4 includes a rectangular (rectangular) bottom paperboard (bottom plate) 11 forming the bottom surface 1a (see FIG. 3) of the thin storage box 1 and four paperboard blanks surrounding the bottom paperboard 11. It includes a rectangular side paperboard and a rectangular top paperboard 15 forming the top surface 1f (see FIG. 1) of the thin storage box 1. The four rectangular side paperboards include a front side paperboard (first side plate) 12, a pair of left and right end face paperboards (second side plate) 13, and a rear side paperboard (first side plate) 14. include. The front paperboard 12, the end paperboard 13, and the back paperboard 14 are all elongated rectangular shapes. The widths in the height direction (vertical direction in FIG. 4) of the front paperboard 12, the end paperboard 13, and the back paperboard 14 are substantially the same, and are set to, for example, within 25 mm. The bottom paperboard 11, the front paperboard 12, the end paperboard 13, the rear paperboard 14, and the like constitute the main body 2 (see FIG. 1) of the thin storage box 1, and the top paperboard 15 and the like constitute the lid of the thin storage box 1. It constitutes a body 3 (see FIG. 1).

As shown in FIG. 4, the front paperboard 12 forms the front surface 1b (see FIG. 1 and the like) of the thin storage box 1. The front paperboard 12 is connected via a fold line L1 along the front side (first side side) 11a, which is the long side of the front side of the bottom paperboard 11.

The pair of end face paper sheets 13 form the left side surface 1c (see FIG. 3) and the right side surface 1d (see FIG. 1) of the thin storage box 1, respectively. Folded lines L2 along the side sides 11b and 11c are formed on the left side (second side side) 11b and the right side (second side side) 11c, which are the short sides of the bottom paperboard 11. The pair of end face paperboards 13 are connected to the bottom side paperboard 11 via the fold line L2.

The rear sheet paper 14 forms the rear surface 1e (see FIG. 3) of the thin storage box 1. The rear paperboard 14 is connected via a folding line L4 along the rear side side (first side side) 11d, which is the long side of the bottom surface paperboard 11.

The top paper sheet 15 is connected upward to the upper side 14a of the rear paper sheet 14 via the fold line L5.

As shown in FIG. 4, the paperboard blank 4 further includes corner paperboards (corner boards) 17A connected to the left and right side sides 12b of the front paperboard 12 via the fold line L7. The paperboard blank 4 includes corner paperboards (corner boards) 17B that are connected to each other via the fold line L8 on the left and right side sides 14b of the rear paperboard 14. These four corner paperboards 17A and 17B are point-symmetrical with respect to the position of the center of gravity of the bottom paperboard 11.

As shown in FIG. 5, each corner paperboard 17A is formed in a substantially rectangular shape. The individual corner paperboard 17A includes a connecting portion 18A and a protruding portion 19A protruding upward (downward in FIG. 5) from the connecting portion 18A in the assembled state of the thin storage box 1. The connecting portion 18A has a rectangular shape that is continuous with the fold line L7 and extends in the direction orthogonal to the fold line L7 with the same width as the fold line L7. The protruding portion 19A is connected to the connecting portion 18A via the fold line L9. The protruding portion 19A is a region of each corner paperboard 17A that protrudes from the upper side 12a of the front paperboard 12 to the side opposite to the end face paperboard 13. That is, the maximum length of the corner paperboard 17A in the direction along the fold line L7 is the length of the side surface 12b of the front paperboard 12 (that is, the width (25 mm) in the height direction of the front paperboard 12 (vertical direction in FIG. 4). Within)) is longer than. Glue is arranged on the protruding portion 19A. That is, the glue arranging portion 30 is formed on the protruding portion 19A. On the other hand, no glue is arranged on the connecting portion 18A. That is, the connecting portion 18A is not provided with a glue arranging portion.

As shown in FIG. 6, each corner paperboard 17B is formed in a substantially rectangular shape. Each corner paperboard 17B includes a connecting portion 18B and a protruding portion 19B protruding upward (also upward in FIG. 6) from the connecting portion 18B in the assembled state of the thin storage box 1. The connecting portion 18B has a rectangular shape that is continuous with the fold line L8 and extends in a direction orthogonal to the fold line L8 with the same width as the fold line L8. The protruding portion 19B is connected to the connecting portion 18B via the folding line L10. The protruding portion 19B is a region of each corner paperboard 17B that protrudes from the upper side 14a of the rear side paperboard 14 to the side opposite to the end face paperboard 13. That is, the maximum length of the corner paperboard 17B in the direction along the fold line L8 is larger than the length of the side side 14b of the rear paperboard 14 (that is, the width of the rear paperboard 14 in the height direction (within 25 mm)). It has been lengthened. Glue is arranged on the protruding portion 19B. That is, the glue arranging portion 30 is formed on the protruding portion 19B. On the other hand, no glue is arranged on the connecting portion 18B. That is, the connecting portion 18B is not provided with a glue arranging portion.

As shown in FIG. 4, in each end face paperboard 13, horizontal flaps 20 are connected to the side side 13a on the opposite side of the bottom side paperboard 11 via the fold line L11. The side surface portion 21 is composed of the individual end face paper sheets 13 and the corresponding horizontal flaps 20. Approximately triangular folded regions 22A and 22B are formed at both ends of each side surface portion 21 in the direction along the folding line L11. The folded regions 22A and 22B are folded outward (on the back side in FIG. 4) with respect to the regions other than the folded regions 22A and 22B on the side surface portion 21.

As shown in FIGS. 4 and 5, the folded region 22A on the front paperboard 12 side is connected to the region other than the folded region 22A on the side surface portion 21 via the diagonal folding line L13. The diagonal fold line L13 bisects the angle (about 90 °) formed by the side sides 11b, 11c (fold line L11) and the side side 13b, starting from the intersection P1 between the side sides 11b, 11c and the side side 13b. It extends to the tip edge of the lateral flap 20 so as to do so.

As shown in FIG. 5, each folded region 22A includes a triangular first portion 23A provided on the end face paper 13 and a right-angled trapezoidal second portion 24A provided on the lateral flap 20. .. The second portion 24A of the folded region 22A is joined to the protruding portion 19A of the corner paperboard 17A by glue. That is, a glue arranging portion 40 corresponding to the glue arranging portion 30 of the protruding portion 19A is formed in the second portion 24A. On the other hand, no glue is arranged on the first portion 23A. That is, the first portion 23A is not provided with a glue arranging portion. The front corner 2c (see FIG. 1 and the like) is formed by joining the individual folded regions 22A and the corresponding corner paperboard 17A.

As shown in FIGS. 4 and 6, the folded region 22B on the rear side paperboard 14 side is connected to the region other than the folded region 22B on the side surface portion 21 via the diagonal fold line L14. The diagonal fold line L14 bisects the angle (about 90 °) formed by the side sides 11b, 11c (fold line L11) and the side side 13b, starting from the intersection P2 between the side sides 11b, 11c and the side side 13b. It extends to the tip edge of the lateral flap 20 so as to do so.

As shown in FIG. 6, each folded region 22B includes a triangular first portion 23B provided on the end face paper 13 and a right-angled trapezoidal second portion 24B provided on the lateral flap 20. .. The second portion 24B of the folded region 22B is joined to the protruding portion 19B of the corner paperboard 17B by glue. That is, the glue arranging portion 40 corresponding to the glue arranging portion 30 of the protruding portion 19B is formed in the second portion 24B. On the other hand, no glue is arranged on the first portion 23B. That is, the first portion 23B is not provided with a glue arranging portion. By joining the individual folded regions 22B and the corresponding corner paperboard 17B, a rear corner portion 2d (see FIG. 1 and the like) is formed.

As shown in FIG. 4, the paperboard blank 4 is further connected to a pair of lower flaps 25 for sealing and gluing connected to the left and right portions of the upper side 12a of the front paperboard 12, and a front side 15a connected to the front side 15a of the top paperboard 15. The flap 26 and the reinforcing paperboard 27 connected to the left and right side sides 15b of the top paperboard 15 are included.

The paperboard constituting the paperboard blank 4 is a corrugated board base paper. In this embodiment, due to the elastic engagement between the front flap 26 and the front paperboard 12 and the strength of the thin storage box 1, a corrugated board base paper having a basis weight of 270 g / m ² or more and 400 g / m ² or less is used as the paperboard. It is preferable to be adopted. The basis weight is an example, and the basis weight may exceed this range.

FIG. 7 is a plan view for explaining the assembly of the thin storage box 1. The process from the paperboard blank 4 to the thin storage box 1 in the assembled state will be described with reference to FIGS. 2 to 7. These steps are performed using a box making machine.

From the unfolded state of the paperboard blank 4 shown in FIG. 4, the left and right reinforcing paperboards 27 are folded inward. The left and right reinforcing paperboards 27 are joined to the top paperboard 15 by gluing. As a result, the top surface of the lid 3 has a double structure, and the top surface paperboard 15 is reinforced.

Further, from the unfolded state of the paperboard blank 4 shown in FIG. 4, the pair of left and right side surface portions 21 (end face paperboard 13 and horizontal flap 20) are folded inward. Then, the two triangular folded regions 22A and the two triangular folded regions 22B are folded outward.

Further, the pair of corner paperboards 17A and the pair of corner paperboards 17B are folded inward toward the front paperboard 12 side and the rear paperboard 14, respectively. In this state, the front paperboard 12 and the back paperboard 14 are folded inward toward the bottom paperboard 11. As a result, the corner paperboard 17A faces the corresponding fold area 22A, and the corner paperboard 17B faces the corresponding fold area 22B. Specifically, the protruding portion 19A of the corner paperboard 17A faces the second portion 24A of the right-angled trapezoidal shape of the folded region 22A, and the connecting portion 18A of the corner paperboard 17A and the triangular first portion of the folded region 22A. Facing the portion 23A of 1. Further, the protruding portion 19B of the corner paperboard 17B faces the second portion 24B of the right-angled trapezoidal shape of the folded region 22B, and the connecting portion 18B of the corner paperboard 17B is the triangular first portion of the folded region 22B. Facing the portion 23B.

Then, in this state, the protruding portion 19A (glue arranging portion 30) is glued to the second portion 24A (glue arranging portion 40). As a result, the corner paperboard 17A is attached to the corresponding folded area 22A (corner pasting). Further, the protruding portion 19B (glue arranging portion 30) is glued to the second portion 24B (glue arranging portion 40). As a result, the corner paperboard 17B is attached to the corresponding folded area 22B (corner pasting). At this time, the connecting portions 18A and 18B are not glued to the first portions 23A and 23B. The planar shape in this state is shown in FIG. FIG. 7 shows a state in which the top paper sheet 15 is folded outward along the fold line L5 with respect to the back paper sheet 14 for easy understanding.

Then, from the state shown in FIG. 7, the top paperboard 15 is folded inward (toward the bottom paperboard 11) along the fold line L5 with respect to the rear paperboard 14, so that the thin storage is shown in FIG. The assembled state of the box 1 is realized. Then, in that state, the thin storage box 1 is shipped and delivered to a retail store or a delivery company.

FIG. 8 is an enlarged perspective view showing a main part of FIG.

A purchaser who purchased from a retail store or a delivery company folds the top paper sheet 15 outward along the fold line L5 from the state shown in FIG. 2, and in this state, a pair of left and right side surface portions 21 (end face paper sheets). 13 and the lateral flap 20) are raised outward. As a result, the pair of left and right side surface portions 21, the front paperboard 12, and the rear paperboard 14 stand up. As a result, as shown in FIGS. 3 and 8, two front corners 2c and two rear corners 2d are formed.

Based on the above, according to this embodiment, folding regions 22A and 22B that can be folded via diagonal folding lines L13 and L14 are provided at the ends of the side surface portions 21 (end face paperboard 13 and horizontal flap 20). ing. Further, the corner paperboards 17A and 17B connected to the front paperboard 12 or the rear paperboard 14 have the connecting portions 18A and 18B and the protruding portions 19A and 19B protruding upward from the connecting portions 18A and 18B. Then, the protruding portions 19A and 19B are glued to the folded folded regions 22A and 22B.

If the protruding portions 19A and 19B are not provided in the corner paperboards 17A and 17B, the corner paperboards 17A and 17B and the folding regions 22A will be formed by gluing the connecting portions 18A and 18B and the folded regions 22A and 22B. It is necessary to join with 22B. Since the width of the connecting portions 18A and 18B in the height direction is narrow, there is a possibility that a sufficient bonding area between the corner paperboards 17A and 17B and the folded areas 22A and 22B cannot be secured. In this case, as a result of not achieving good gluing, there is a possibility that the joint between the corner paperboards 17A and 17B and the end face paperboard 13 cannot be firmly maintained.

On the other hand, in this embodiment, the protruding portions 19A and 19B protruding upward from the connecting portions 18A and 18B and the folded regions 22A and 22B are glued. As a result, the corner paperboards 17A and 17B and the folded regions 22A and 22B can be satisfactorily bonded to each other. Therefore, the joint between the corner paperboards 17A and 17B and the folded regions 22A and 22B can be firmly achieved.

Further, even if the connecting portions 18A and 18B are not glued to the folded regions 22A and 22B, the corner paperboards 17A and 17B can be firmly joined to the folded regions 22A and 22B. It is not glued to the folded areas 22A and 22B. This makes it possible to reduce the amount of glue used.

Although one embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.

For example, the lid 3 may be connected to the front paperboard 12 instead of the back paperboard 14.

Further, it has been described that the board blank (paperboard blank 4) board constituting the bottom board 11, the front board 12, the pair of left and right end face boards 13, the rear board 14, and the like is formed by using the corrugated board base paper. The paper board is not limited to the above, and a paperboard for a paper container, a miscellaneous paperboard, or the like may be used as the paper board. An example of paperboard for paper containers is coated paper. Further, this plate blank is other than a paperboard such as a resin plate (more specifically, a transparent resin plate formed by using, for example, vinyl chloride, polyethylene (PE), polypropylene (PP), polyethylene teflate (PET), etc.). It may be formed by using the plate of.

Further, the thin storage box 1 may be used to store a thin container other than books and documents. Further, the thin storage box 1 may have a size exceeding A4 size, or the thickness thereof may exceed 25 mm.

In addition, various design changes can be made within the scope of the matters described in the claims.

1: Thin storage box 4: Paperboard blank (board blank)
11: Bottom paperboard (bottom board)
11a: Front side (first side)
11b: Left side (second side)
11c: Right side (second side)
11d: Rear side (first side)
12: Front paperboard (first side board)
12b: Side side 13: End face paperboard (second side plate)
14: Rear side board (first side board)
14b: Side 17A: Corner paperboard (corner board)
17B: Corner paperboard (corner board)
18A: Connecting part 18B: Connecting part 19A: Protruding part 19B: Protruding part 20: Horizontal flap 22A: Folding area 22B: Folding area L13: Diagonal fold line L14: Diagonal fold line

Claims (3)

It is a thin storage box that is formed by folding a plate blank of a predetermined shape into a folded state and can be assembled into a box shape by hand from the folded state.
With a rectangular bottom plate,
A first side plate connected to the first side of the bottom plate,
In the bottom plate, a second side plate connected to the second side side adjacent to the first side side, and
A corner plate that is connected to the first side plate and faces the second side plate, and
The second side plate includes a horizontal flap extending to the opposite side of the bottom plate.
Folding regions that can be folded via diagonal fold lines are provided at the ends of the second side plate and the lateral flaps.
The corner plate has a connecting portion that is connected to the side side of the first side surface plate and has the same width as the side side, and a protruding portion that protrudes upward from the connecting portion.
A thin storage box in which the protruding portion is glued to the folded area. The thin storage box according to claim 1, wherein the connecting portion is not glued to the folded region. The thin storage box according to claim 1 or 2, wherein the protruding portion is connected to the connecting portion via a fold line.

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