Packaging materials

Abstract

To provide a packing tool capable of arranging a bottom surface to be flat.SOLUTION: A packing tool 100 comprises a bottom surface 110 and four lateral surfaces 120. The four lateral surfaces 120 have a first lateral surface 120a, a second lateral surface 120b, a third lateral surface 120c and a fourth lateral surface 120d. The bottom surface 110 is formed by a first bottom surface part 110a, a second bottom surface 110b, a third bottom surface part 110c and a fourth bottom surface part 110d. A first insertion port 140a is formed at an end of the first bottom surface part 110a side of the first lateral surface 120a. The second bottom surface part 110b has a body part 112b and a first insertion piece 114b. A second insertion port 140b is formed at an end of the third bottom surface part 110c side of the third lateral surface 120c. The fourth bottom surface part 110d has a body part 112d and a second insertion piece 114d. The first insertion piece 114b is inserted into the first insertion port 140a. The second insertion piece 114d is inserted into the second insertion port 140b.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a packaging device. [Background technology]

[0002] One-touch packaging devices that can be easily assembled without using adhesive tape are known (for example, Patent Document 1). The packaging box of Patent Document 1 has a bottom surface that is formed by a group of bottom surface members. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-172137 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the packaging box of Patent Document 1, there is a possibility that the bottom member group may rise up. Therefore, the bottom surface may not be flat. As a result, there is a possibility that the packaged item may get under the bottom member group.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a packaging device whose bottom surface can be made flat. [Means for solving the problem]

[0006] A packaging tool according to the present invention is used for packaging an article. The packaging tool has a bottom surface and four side surfaces. The four side surfaces include a first side surface, a second side surface, a third side surface, and a fourth side surface. The second side surface is adjacent to the first side surface. The third side surface is adjacent to the second side surface. The third side surface faces the first side surface. The fourth side surface is adjacent to the third side surface and the first side surface. The fourth side surface faces the second side surface. The bottom surface is formed by a first bottom surface portion, a second bottom surface portion, a third bottom surface portion, and a fourth bottom surface portion. The first bottom surface portion is connected to the first side surface. The second bottom surface portion is connected to the second side surface. The third bottom surface portion is connected to the third side surface. The fourth bottom surface portion is connected to the fourth side surface. A first insertion port is formed at an end of the first side surface on the first bottom surface portion side. The second bottom surface portion has a main body portion and a first insertion piece. The main body portion connects to the second side surface. The first insertion piece protrudes from the main body portion toward the first insertion port. A second insertion port is formed at an end of the third side surface on the third bottom surface portion side. The fourth bottom surface portion has a main body portion and a second insertion piece. The main body portion connects to the fourth side surface. The second insertion piece protrudes from the main body portion toward the second insertion port. The first insertion piece is inserted into the first insertion port. The second insertion piece is inserted into the second insertion port.

[0007] In one embodiment, the second bottom surface portion further has a first adhesive portion. The first adhesive portion is connected to the main body portion of the second bottom surface portion via a first fold line. The fourth bottom surface portion further has a second adhesive portion. The second adhesive portion is connected to the main body portion of the fourth bottom surface portion via a second fold line. The second bottom surface portion and the third bottom surface portion are bonded at the first adhesive portion. The fourth bottom surface portion and the first bottom surface portion are bonded at the second adhesive portion.

[0008] In one embodiment, the second side surface and the second bottom surface portion are connected via a third fold line. The third side surface and the third bottom surface portion are connected via a fourth fold line. The third bottom surface portion has a bonded side edge and a non-bonded side edge. The bonded side edge is located on the side of the first bonded portion. The non-bonded side edge is located on the opposite side to the first bonded portion. An angle of the first fold line relative to the third fold line is equal to an angle of the bonded side edge of the third bottom surface portion relative to the fourth fold line. The fourth side surface and the fourth bottom surface portion are connected via a fifth fold line. The first side surface and the first bottom surface portion are connected via a sixth fold line. The first bottom surface portion has a bonded side edge and a non-bonded side edge. The bonded side edge is located on the side of the second bonded portion. The non-bonded side edge is located on the opposite side to the second bonded portion. An angle of the second fold line relative to the fifth fold line is equal to an angle of the bonded side edge of the first bottom surface portion relative to the sixth fold line.

[0009] In one embodiment, the first fold line and the adhesive side edge of the third bottom portion overlap, and the second fold line and the adhesive side edge of the first bottom portion overlap.

[0010] In one embodiment, the first bottom surface portion has a main body portion and a first protrusion portion. The first protrusion portion protrudes from the main body portion toward the main body portion side of the fourth bottom surface portion. The third bottom surface portion has a main body portion and a second protrusion portion. The second protrusion portion protrudes from the main body portion toward the main body portion side of the second bottom surface portion.

[0011] In one embodiment, a first insertion piece fold line is formed on the second bottom surface portion. The first insertion piece can be folded along the first insertion piece fold line. A second insertion piece fold line is formed on the fourth bottom surface portion. The second insertion piece can be folded along the second insertion piece fold line.

[0012] A packaging tool according to the present invention is used for packaging an article. The packaging tool has a bottom surface and four side surfaces. The four side surfaces include a first side surface, a second side surface, a third side surface, and a fourth side surface. The second side surface is adjacent to the first side surface. The third side surface is adjacent to the second side surface. The third side surface faces the first side surface. The fourth side surface is adjacent to the third side surface and the first side surface. The fourth side surface faces the second side surface. The bottom surface is formed by a first bottom surface portion, a second bottom surface portion, a third bottom surface portion, and a fourth bottom surface portion. The first bottom surface portion is connected to the first side surface. The second bottom surface portion is connected to the second side surface. The third bottom surface portion is connected to the third side surface. The fourth bottom surface portion is connected to the fourth side surface. The second bottom surface portion has a main body portion and a first protruding piece. The main body portion is connected to the second side surface. The first insertion piece protrudes from the main body portion toward the first side surface. The fourth bottom surface portion has a main body portion and a second protruding piece. The main body portion connects to the fourth side surface. The second insertion piece protrudes from the main body portion toward the third side surface. The first protruding piece contacts the first side surface. The second protruding piece contacts the fourth side surface. Effect of the Invention

[0013] According to the packaging device of the present invention, the bottom surface can be made flat. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic perspective view of a packaging device according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a schematic perspective view of a packaging device according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a development view of a packaging device according to an embodiment of the present invention. [Figure 4] FIG. 2 is a top view of a packaging device according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a bottom view of the packaging device according to the embodiment of the present invention. [Figure 6] 1(a) and 1(b) are top views showing a method of assembling a packaging device according to an embodiment of the present invention. [Figure 7] 1(a) and 1(b) are top views showing a method of assembling a packaging device according to an embodiment of the present invention. [Figure 8] FIG. 11 is a development view of a packaging device according to a modified example of the present invention. [Figure 9] FIG. 11 is a development view of a packaging device according to another modified example of the present invention. [Figure 10] FIG. 11 is a schematic perspective view of a packaging device according to another modified example of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference symbols, and the description will not be repeated. In addition, in the drawings, the X-axis, Y-axis, and Z-axis of a three-dimensional orthogonal coordinate system are appropriately described for ease of understanding. The X-axis and Y-axis are parallel to the horizontal direction, and the Z-axis is parallel to the vertical direction. The positive direction of the Z-axis indicates the vertically upward direction, and the negative direction of the Z-axis indicates the vertically downward direction.

[0016] A packaging tool 100 according to an embodiment of the present invention will be described with reference to Fig. 1 and Fig. 2. Fig. 1 and Fig. 2 are schematic perspective views of the packaging tool 100 according to an embodiment of the present invention. Fig. 2 shows the packaging tool 100 with the top surface 130 open.

[0017] 1 and 2, the packaging tool 100 has a bottom surface 110, four side surfaces 120, and a top surface 130. The packaging tool 100 is used to pack an item. The packaging tool 100 has a rectangular parallelepiped shape. The packaging tool 100 is made of, for example, cardboard.

[0018] The four side surfaces 120 include a first side surface 120a, a second side surface 120b, a third side surface 120c, and a fourth side surface 120d. The second side surface 120b is adjacent to the first side surface 120a. The third side surface 120c is adjacent to the second side surface 120b. The third side surface 120c faces the first side surface 120a. The fourth side surface 120d is adjacent to the third side surface 120c and the first side surface 120a. The fourth side surface 120d faces the second side surface 120b.

[0019] As shown in FIG. 2, the bottom surface 110 is formed by a first bottom surface portion 110a, a second bottom surface portion 110b, a third bottom surface portion 110c, and a fourth bottom surface portion 110d. The first bottom surface portion 110a is connected to the first side surface 120a. The second bottom surface portion 110b is connected to the second side surface 120b. The third bottom surface portion 110c is connected to the third side surface 120c. The fourth bottom surface portion 110d is connected to the fourth side surface 120d.

[0020] The upper surface 130 includes a first upper surface portion 130a, a second upper surface portion 130b, a third upper surface portion 130c, and a fourth upper surface portion 130d. In the state shown in Fig. 2, the upper lid of the packaging tool 100 is open. When the upper lid of the packaging tool 100 is closed, the first upper surface portion 130a, the second upper surface portion 130b, the third upper surface portion 130c, and the fourth upper surface portion 130d form the upper surface 130.

[0021] A first insertion port 140a is formed at the end of the first side surface 120a on the first bottom surface portion 110a side.

[0022] The second bottom surface portion 110b has a main body portion 112b and a first insertion piece 114b. The main body portion 112b is connected to the second side surface 120b. The first insertion piece 114b protrudes from the main body portion 112b toward the first insertion port 140a.

[0023] The first insertion piece 114b is inserted into the first insertion port 140a. Therefore, the first insertion piece 114b is fixed to the first insertion port 140a. This makes it possible to prevent the main body portion 112b of the second bottom surface portion 110b from floating up. As a result, the bottom surface 110 can be made flat. This makes it possible to prevent packaged items from entering under the main body portion 112b of the second bottom surface portion 110b.

[0024] A second insertion port 140b is formed at the end of the third side surface 120c on the third bottom surface portion 110c side.

[0025] The fourth bottom surface portion 110d has a main body portion 112d and a second insertion piece 114d. The main body portion 112d is connected to the fourth side surface 120d. The second insertion piece 114d protrudes from the main body portion 112d toward the second insertion port 140b.

[0026] The second insertion piece 114d is inserted into the second insertion port 140b. Therefore, the second insertion piece 114d is fixed to the second insertion port 140b. Therefore, it is possible to prevent the main body portion 112d of the fourth bottom surface portion 110d from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent a package from entering under the main body portion 112d of the fourth bottom surface portion 110d.

[0027] The packaging device 100 will be further described with reference to Fig. 3. Fig. 3 is a development view of the packaging device 100 according to the embodiment of the present invention.

[0028] As shown in FIG. 3, the packaging tool 100 has fold lines 21, 22, 23, 24, 31, 32, 33, 34, 42, 44, 51, 52, 53, and 54. The fold line 42 corresponds to an example of a "first fold line." The fold line 44 corresponds to an example of a "second fold line." The fold line 22 corresponds to an example of a "third fold line." The fold line 23 corresponds to an example of a "fourth fold line." The fold line 24 corresponds to an example of a "fifth fold line." The fold line 21 corresponds to an example of a "sixth fold line."

[0029] The second bottom surface portion 110b further has a first adhesive portion 116b, a first engagement portion 118b, and an inclined side 119b in addition to the main body portion 112b and the first insertion piece 114b. The first adhesive portion 116b is connected to the main body portion 112b of the second bottom surface portion 110b via a folding line 42. The second bottom surface portion 110b and the third bottom surface portion 110c are adhered to each other at the first adhesive portion 116b. The first engagement portion 118b is adjacent to the first adhesive portion 116b. The first engagement portion 118b engages with the second engagement portion 118d when the packaging tool 100 is assembled. The inclined side 119b is inclined toward the +X direction side with respect to the folding line 51. Therefore, when the packaging tool 100 is assembled, it is possible to suppress the inclined side 119b from interfering with the first side surface 120a. As a result, the first insertion piece 114b can be easily inserted into the first insertion opening 140a, and the packaging tool 100 can be easily assembled.

[0030] The fourth bottom surface portion 110d further has a second adhesive portion 116d, a second engagement portion 118d, and an inclined side 119d in addition to the main body portion 112d and the second insertion piece 114d. The second adhesive portion 116d is connected to the main body portion 112d of the fourth bottom surface portion 110d via a folding line 44. The fourth bottom surface portion 110d and the first bottom surface portion 110a are adhered to each other at the second adhesive portion 116d. The second engagement portion 118d is adjacent to the second adhesive portion 116d. The second engagement portion 118d engages with the first engagement portion 118b when the packaging tool 100 is assembled. The inclined side 119d is inclined toward the +X direction side with respect to the folding line 53. Therefore, when the packaging tool 100 is assembled, it is possible to suppress the inclined side 119d from interfering with the third side surface 120c. As a result, the second insertion piece 114d can be easily inserted into the second insertion port 140b, and the packaging tool 100 can be easily assembled.

[0031] The first bottom surface portion 110a has a main body portion 112a, a first protruding portion 114a, an adhesive side edge 116a, and a non-adhesive side edge 118a.

[0032] The main body 112a is substantially triangular. The first protruding portion 114a protrudes from the main body 112a toward the main body 112d side of the fourth bottom surface portion 110d. The distance d1 is longer than the length d2. The distance d1 indicates the distance from one end of the first protruding portion 114a to the other end. The length d2 indicates the length of the side 117d. The side 117d indicates the side extending from the second adhesive portion 116d to the intersection point P1. The intersection point P1 indicates the intersection point of the folding line 21, the folding line 24, and the folding line 54. The adhesive side 116a is located on the side of the second adhesive portion 116d. The non-adhesive side 118a is located on the opposite side to the second adhesive portion 116d.

[0033] The third bottom surface portion 110c has a main body portion 112c, a second protruding portion 114c, an adhesive side edge 116c, and a non-adhesive side edge 118c.

[0034] The main body 112c is substantially triangular. The second protruding portion 114c protrudes from the main body 112c toward the main body 112b side of the second bottom surface portion 110b. The distance d3 is longer than the length d4. The distance d3 indicates the distance from one end of the second protruding portion 114c to the other end. The length d4 indicates the length of the side 117b. The side 117b indicates the side extending from the first adhesive portion 116b to the intersection point P2. The intersection point P2 indicates the intersection point of the folding line 22, the folding line 23, and the folding line 52. The adhesive side side 116c is located on the side of the first adhesive portion 116b. The non-adhesive side side 118c is located on the opposite side to the first adhesive portion 116b.

[0035] An angle θ1 of the fold line 42 relative to the fold line 22 is equal to an angle θ2 of the adhesive side edge 116c of the third bottom surface portion 110c relative to the fold line 23. In this embodiment, the angles θ1 and θ2 are 45 degrees.

[0036] An angle θ3 of the fold line 44 relative to the fold line 24 is equal to an angle θ4 of the adhesive side edge 116a of the first bottom surface portion 110a relative to the fold line 21. In this embodiment, the angles θ3 and θ4 are 45 degrees.

[0037] The first bottom surface portion 110a and the third bottom surface portion 110c are substantially triangular. The main body portion 112b of the second bottom surface portion 110b is trapezoidal. The first insertion piece 114b of the second bottom surface portion 110b is rectangular. The first adhesive portion 116b of the second bottom surface portion 110b is pentagonal. The main body portion 112d of the fourth bottom surface portion 110d is trapezoidal. The second insertion piece 114d of the fourth bottom surface portion 110d is rectangular. The second adhesive portion 116d of the fourth bottom surface portion 110d is pentagonal.

[0038] The first side surface 120a and the first bottom surface portion 110a are connected via a fold line 21. The second side surface 120b and the second bottom surface portion 110b are connected via a fold line 22. The third side surface 120c and the third bottom surface portion 110c are connected via a fold line 23. The fourth side surface 120d and the fourth bottom surface portion 110d are connected via a fold line 24.

[0039] The first side surface 120a, the second side surface 120b, the third side surface 120c, and the fourth side surface 120d are rectangular in shape.

[0040] The first upper surface portion 130a, the second upper surface portion 130b, the third upper surface portion 130c, and the fourth upper surface portion 130d are rectangular. The first upper surface portion 130a is connected to the first side surface 120a via a fold line 31. The second upper surface portion 130b is connected to the second side surface 120b via a fold line 32. The third upper surface portion 130c is connected to the third side surface 120c via a fold line 33. The fourth upper surface portion 130d is connected to the fourth side surface 120d via a fold line 34.

[0041] The adhesive portion 150 is connected to a side portion of the fourth side surface 120d. The adhesive portion 150 is adhered to the third side surface 120c.

[0042] The first insertion piece 114b protrudes from the main body 112b in the -X direction. Therefore, the first insertion piece 114b is disposed in a portion that would be cut off in a typical packaging tool. As a result, the amount of cardboard used can be reduced. In this embodiment, the first insertion piece 114b protrudes slightly in the -X direction beyond the folding line 51 in the X-axis direction.

[0043] Also, the second insertion piece 114d protrudes from the main body 112d toward the -X direction. Also, the second insertion piece 114d does not protrude beyond the end of the margin portion 150 on the -X direction side. Therefore, the second insertion piece 114d is disposed in a portion that would be cut off in a typical packaging tool. As a result, the amount of cardboard used can be reduced. Also, in this embodiment, the second insertion piece 114d protrudes slightly toward the -X direction beyond the fold line 53 in the X-axis direction.

[0044] The packaging tool 100 will be further described with reference to Fig. 4. Fig. 4 is a top view of the packaging tool 100 according to an embodiment of the present invention. Note that in Fig. 4, for ease of understanding, only the bottom surface 110 is illustrated, and the four side surfaces 120 and the top surface 130 are omitted.

[0045] As shown in FIG. 4, the first insertion piece 114b is inserted into the first insertion port 140a. Therefore, the first insertion piece 114b is fixed to the first insertion port 140a. This makes it possible to prevent the main body portion 112b of the second bottom surface portion 110b from floating up. As a result, the bottom surface 110 can be made flat. This makes it possible to prevent packaged items from entering under the main body portion 112b of the second bottom surface portion 110b.

[0046] Also, the second insertion piece 114d is inserted into the second insertion port 140b. Therefore, the second insertion piece 114d is fixed to the second insertion port 140b. Therefore, it is possible to prevent the main body portion 112d of the fourth bottom surface portion 110d from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent a package from entering under the main body portion 112d of the fourth bottom surface portion 110d.

[0047] In addition, the fold line 42 and the adhesive side edge 116c of the third bottom surface portion 110c overlap with each other so that the adhesive side edge 116c is located on the upper side. More specifically, the fold line 42 and the adhesive side edge 116c of the third bottom surface portion 110c are arranged in a straight line. Therefore, the portion of the third bottom surface portion 110c that extends beyond the fold line 42 toward the second bottom surface portion 110b can be reduced. Therefore, the portion of the third bottom surface portion 110c near the adhesive side edge 116c can be prevented from floating up. As a result, the bottom surface 110 can be made flat. Therefore, it is possible to prevent the package from entering under the main body portion 112c of the third bottom surface portion 110c.

[0048] The fold line 44 and the adhesive side edge 116a of the first bottom surface portion 110a overlap with each other so that the adhesive side edge 116a is located on the upper side. More specifically, the fold line 44 and the adhesive side edge 116a of the first bottom surface portion 110a are arranged in a straight line. Therefore, the portion of the first bottom surface portion 110a that extends beyond the fold line 44 toward the fourth bottom surface portion 110d can be reduced. Therefore, the portion of the first bottom surface portion 110a near the adhesive side edge 116a can be prevented from floating up. As a result, the bottom surface 110 can be made flat. Therefore, it is possible to prevent the package from entering under the main body portion 112a of the first bottom surface portion 110a.

[0049] The first protruding portion 114a protrudes from the main body portion 112a of the first bottom surface portion 110a toward the main body portion 112d of the fourth bottom surface portion 110d. Therefore, the first protruding portion 114a can cover the gap S1 that occurs between the first bottom surface portion 110a and the fourth bottom surface portion 110d. The gap S1 indicates a gap that occurs in a portion of the boundary between the main body portion 112a of the first bottom surface portion 110a and the main body portion 112d of the fourth bottom surface portion 110d that is not bonded by the second adhesive portion 116d.

[0050] Further, the second protruding portion 114c protrudes from the main body portion 112c of the third bottom surface portion 110c toward the main body portion 112b of the second bottom surface portion 110b. Therefore, the second protruding portion 114c can cover the gap S2 occurring between the third bottom surface portion 110c and the second bottom surface portion 110b. The gap S2 indicates a gap occurring in a portion of the boundary between the main body portion 112c of the third bottom surface portion 110c and the main body portion 112b of the second bottom surface portion 110b that is not bonded by the first adhesive portion 116b.

[0051] The packaging tool 100 will be further described with reference to Fig. 5. Fig. 5 is a bottom view of the packaging tool 100 according to an embodiment of the present invention. Note that, in Fig. 5, for ease of understanding, only the bottom surface 110 is illustrated, and the four side surfaces 120 and the top surface 130 are omitted.

[0052] 5, the second bottom surface portion 110b and the third bottom surface portion 110c are bonded to each other at a first bonding portion 116b. Therefore, the third bottom surface portion 110c moves in conjunction with the movement of the second bottom surface portion 110b.

[0053] Additionally, the fourth bottom surface portion 110d and the first bottom surface portion 110a are bonded to each other at the second bonding portion 116d. Therefore, the first bottom surface portion 110a moves in conjunction with the movement of the fourth bottom surface portion 110d.

[0054] A method of assembling the packaging tool 100 according to an embodiment of the present invention will be described with reference to Fig. 6(a) to Fig. 7(b). Fig. 6(a) to Fig. 7(b) are top views showing a method of assembling the packaging tool 100 according to an embodiment of the present invention. Note that in Fig. 6(a) to Fig. 7(b), the top surface 130 is omitted for ease of understanding.

[0055] FIG. 6(a) shows the packaging device 100 in a folded state.

[0056] As the packaging device 100 shown in FIG. 6(a) is raised from the folded state so that adjacent side surfaces 120 intersect at a 90 degree angle as shown in FIG. 6(b) and FIG. 7(a), the second bottom surface portion 110b and the third bottom surface portion 110c, and the fourth bottom surface portion 110d and the first bottom surface portion 110a overlap each other to form the bottom surface 110 as shown in FIG. 7(b).

[0057] Also, as the packaging tool 100 shown in FIG. 6(a) is raised from the folded state so that the adjacent side surfaces 120 cross each other at 90 degrees as shown in FIG. 6(b) and FIG. 7(a), the first insertion piece 114b moves closer to the first insertion port 140a. Similarly, as the packaging tool 100 shown in FIG. 6(a) is raised from the folded state so that the adjacent side surfaces 120 cross each other at 90 degrees as shown in FIG. 6(b) and FIG. 7(a), the second insertion piece 114d moves closer to the second insertion port 140b. Then, as shown in FIG. 7(b), the first insertion piece 114b is inserted into the first insertion port 140a. Also, the second insertion piece 114d is inserted into the second insertion port 140b.

[0058] As described above with reference to Figs. 1 to 7(b), the first insertion piece 114b is inserted into the first insertion port 140a. Therefore, the first insertion piece 114b is fixed to the first insertion port 140a. This makes it possible to prevent the main body portion 112b of the second bottom surface portion 110b from floating up. As a result, the bottom surface 110 can be made flat. This makes it possible to prevent packaged items from entering under the main body portion 112b of the second bottom surface portion 110b.

[0059] Also, the second insertion piece 114d is inserted into the second insertion port 140b. Therefore, the second insertion piece 114d is fixed to the second insertion port 140b. Therefore, it is possible to prevent the main body portion 112d of the fourth bottom surface portion 110d from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent a package from entering under the main body portion 112d of the fourth bottom surface portion 110d.

[0060] In addition, the second bottom surface portion 110b and the third bottom surface portion 110c are bonded at the first adhesive portion 116b. Therefore, the third bottom surface portion 110c moves in conjunction with the movement of the second bottom surface portion 110b. The fourth bottom surface portion 110d and the first bottom surface portion 110a are bonded at the second adhesive portion 116d. Therefore, the third bottom surface portion 110c moves in conjunction with the movement of the second bottom surface portion 110b. As a result, the bottom surface 110 of the packaging tool 100 can be easily assembled.

[0061] The angle θ1 of the first fold line (fold line 42) relative to the third fold line (fold line 22) is equal to the angle θ2 of the adhesive side edge 116c of the third bottom surface portion 110c relative to the fourth fold line (fold line 23). Therefore, the first fold line (fold line 42) and the adhesive side edge 116c of the third bottom surface portion 110c are arranged on a straight line. Therefore, it is possible to reduce the portion of the third bottom surface portion 110c that extends beyond the fold line 42 and protrudes toward the second bottom surface portion 110b. Therefore, it is possible to prevent the portion of the third bottom surface portion 110c near the adhesive side edge 116c from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent the package from entering under the main body portion 112c of the third bottom surface portion 110c.

[0062] In addition, the angle θ3 of the second fold line (fold line 44) relative to the fifth fold line (fold line 24) is equal to the angle θ4 of the adhesive side edge 116a of the first bottom surface portion 110a relative to the sixth fold line (fold line 21). Therefore, the second fold line (fold line 44) and the adhesive side edge 116a of the first bottom surface portion 110a are arranged on a straight line. Therefore, it is possible to reduce the portion of the first bottom surface portion 110a that extends beyond the fold line 42 and protrudes toward the fourth bottom surface portion 110d. Therefore, it is possible to prevent the portion near the adhesive side edge 116a of the first bottom surface portion 110a from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent the package from entering under the main body portion 112a of the first bottom surface portion 110a.

[0063] A packaging tool 100 according to a modified example of the present invention will be described with reference to Fig. 8. Fig. 8 is a development view of the packaging tool 100 according to a modified example of the present invention. The packaging tool 100 according to the modified example has a similar configuration to the packaging tool 100 according to the embodiment, except that the first insertion piece folding line 62 is formed on the second bottom surface portion 110b and the second insertion piece folding line 64 is formed on the fourth bottom surface portion 110d, and therefore a description of the overlapping parts will be omitted.

[0064] As shown in FIG. 8, a first insertion piece folding line 62 is formed on the second bottom surface portion 110b. The first insertion piece 114b can be folded along the first insertion piece folding line 62. Therefore, when assembling the packaging tool 100, the first insertion piece 114b is folded relative to the main body portion 112b, thereby preventing interference between the first insertion piece 114b and the first side surface 120a. Therefore, the first insertion piece 114b can be easily inserted into the first insertion opening 140a. As a result, the packaging tool 100 can be easily assembled.

[0065] Similarly, the fourth bottom surface portion 110d is formed with a second insertion piece folding line 64. The second insertion piece 114d can be folded along the second insertion piece folding line 64. Therefore, when assembling the packaging tool 100, the second insertion piece 114d is folded relative to the main body portion 112d, thereby preventing interference between the second insertion piece 114d and the third side surface 120c, and therefore, the second insertion piece 114d can be easily inserted into the second insertion opening 140b. As a result, the packaging tool 100 can be easily assembled.

[0066] A packaging tool 100 according to another modified example of the present invention will be described with reference to Figs. 9 and 10. Fig. 9 is a development view of a packaging tool 100 according to another modified example of the present invention. Fig. 10 is a schematic perspective view of a packaging tool according to another modified example of the present invention. Fig. 10 shows the packaging tool 100 with the top surface 130 open. The packaging tool 100 according to the other modified example has the same configuration as the packaging tool 100 according to the embodiment, except that the first insertion port 140a is not formed on the first side surface 120a, the second insertion port 140b is not formed on the third side surface 120c, the second bottom surface portion 110b has a first protruding piece 115b instead of the first insertion piece 114b, and the fourth bottom surface portion 110d has a second protruding piece 115d instead of the second insertion piece 114d. Therefore, a description of the overlapping parts will be omitted.

[0067] 9 and 10, in this modification, the first plug-in port 140a is not formed on the first side surface 120a, and the second plug-in port 140b is not formed on the third side surface 120c.

[0068] The second bottom surface portion 110b has a first protruding piece 115b. The first protruding piece 115b protrudes from the main body portion 112b toward the first side surface 120a. The fourth bottom surface portion 110d has a second protruding piece 115d. The second protruding piece 115d protrudes from the main body portion 112d toward the third side surface 120c.

[0069] The first protruding piece 115b contacts the first side surface 120a. The second protruding piece 115d contacts the third side surface 120c. The first protruding piece 115b is bent upward (toward the +Z direction). The second protruding piece 115d is bent upward (toward the +Z direction). The first protruding piece 115b and the second protruding piece 115d do not have to be bent.

[0070] As shown in FIG. 10, the first protruding piece 115b contacts the first side surface 120a. Therefore, the first protruding piece 115b is fixed to the first side surface 120a. Therefore, it is possible to prevent the main body portion 112b of the second bottom surface portion 110b from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent the package from entering under the main body portion 112b of the second bottom surface portion 110b.

[0071] Also, the second protruding piece 115d comes into contact with the third side surface 120c. Therefore, the second protruding piece 115d is fixed to the third side surface 120c. Therefore, it is possible to prevent the main body portion 112d of the fourth bottom surface portion 110d from floating up. As a result, it is possible to make the bottom surface 110 flat. Therefore, it is possible to prevent a package from entering under the main body portion 112d of the fourth bottom surface portion 110d.

[0072] The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 10). However, the present invention is not limited to the above embodiments, and can be implemented in various forms without departing from the scope of the present invention (for example, (1) to (5) shown below). The drawings are mainly schematic illustrations of each component for ease of understanding, and the thickness, length, number, etc. of each component shown in the drawings differ from the actual ones due to the convenience of drawing. Furthermore, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples and are not particularly limited, and various modifications are possible without substantially departing from the effects of the present invention.

[0073] (1) The packaging tool 100 described with reference to Figs. 1 to 10 is made of cardboard, but the present invention is not limited to this. For example, the packaging tool 100 may be made of cardboard or other types of cardboard. Furthermore, the packaging tool 100 is not limited to being made of paper, and may be made of resin such as polyethylene or rubber.

[0074] (2) In the packaging tool 100 described with reference to Figs. 1 to 10, the angle θ1 of the fold line 42 relative to the fold line 22 and the angle θ2 of the adhesive side edge 116c of the third bottom surface portion 110c relative to the fold line 23 are equal, but the present invention is not limited to this. For example, the angles θ1 and θ2 may be different. Similarly, in the packaging tool 100 described with reference to Figs. 1 to 8, the angle θ3 of the fold line 44 relative to the fold line 24 and the angle θ4 of the adhesive side edge 116a of the first bottom surface portion 110a relative to the fold line 21 are equal, but the present invention is not limited to this. The angles θ3 and θ4 may be different.

[0075] (3) In the packaging tool 100 described with reference to Figs. 1 to 10, the first bottom surface portion 110a has the first protruding portion 114a, but the present invention is not limited thereto. For example, the first bottom surface portion 110a may not have the first protruding portion 114a. In this case, the adhesive side edge 116a may extend linearly toward the fold line 21 and connect to the fold line 21. Similarly, the third bottom surface portion 110c has the second protruding portion 114c, but the present invention is not limited thereto. For example, the third bottom surface portion 110c may not have the second protruding portion 114c. In this case, the adhesive side edge 116c may extend linearly toward the fold line 23 and connect to the fold line 21.

[0076] (4) In the packaging tool 100 described with reference to Figs. 1 to 8, the second bottom surface portion 110b has one first insertion piece 114b, but the present invention is not limited to this. For example, the second bottom surface portion 110b may have two or more first insertion pieces 114b. In this case, the first side surface 120a is provided with the same number of first insertion openings 140a as the first insertion pieces 114b. Similarly, in the packaging tool 100 described with reference to Figs. 1 to 8, the fourth bottom surface portion 110d has one second insertion piece 114d, but the present invention is not limited to this. For example, the fourth bottom surface portion 110d may have two or more second insertion pieces 114d. In this case, the third side surface 120c is provided with the same number of second insertion openings 140b as the second insertion pieces 114d.

[0077] (5) In the packaging tool 100 described with reference to Figs. 1 to 8, the first side surface 120a is formed with the first insertion opening 140a, and the third side surface 120c is formed with the second insertion opening 140b. In addition, the second bottom surface portion 110b has the first insertion piece 114b, and the fourth bottom surface portion 110d has the second insertion piece 114d. However, the present invention is not limited to this. For example, the first side surface 120a may not have the first insertion opening 140a, and the third side surface 120c may not have the second insertion opening 140b. In addition, the second bottom surface portion 110b may not have the first insertion piece 114b, and the fourth bottom surface portion 110d may not have the second insertion piece 114d. In this case, it is preferable that the angle θ1 of the fold line 42 relative to the fold line 22 is equal to the angle θ2 of the adhesive side edge 116c of the third bottom surface portion 110c relative to the fold line 23. Furthermore, it is preferable that the angle θ3 of the fold line 44 relative to the fold line 24 is equal to the angle θ4 of the adhesive side edge 116a of the first bottom surface portion 110a relative to the fold line 21. [Explanation of symbols]

[0078] 21 Folding line (6th folding line) 22 Folding line (3rd folding line) 23 Folding line (4th folding line) 24 Folding line (5th folding line) 42 Folding line (1st folding line) 44 Folding line (second folding line) 62 First insertion piece folding curve 64 Second Insertion Piece Folding Curve 100 Packaging materials 110 Bottom 110a 1st bottom part 110b 2nd bottom part 110c 3rd bottom part 110d 4th bottom part 112a Main body 112b Main body 112c Main body 112d Main body 114a 1st protrusion 114b First Insert 114c Second protrusion 114d Second Insert 115b 1st protruding piece 115d 2nd protruding piece 116a Adhesive side 116b 1st adhesive part 116c Adhesive side 116d 2nd adhesive part 118a Non-adhesive side 118c Non-adhesive side 120 Side 120a First side 120b 2nd side 120c 3rd side 120d 4th side 140a 1st outlet 140b 2nd socket θ1 angle θ2 angle θ3 angle θ4 angle

Claims

1. A packaging device used to pack an item, The bottom surface and Four aspects and Equipped with The four aspects are: A first aspect; a second side adjacent to the first side; a third side surface adjacent to the second side surface and facing the first side surface; a fourth side surface adjacent to the third side surface and the first side surface and facing the second side surface; having The bottom surface is A first bottom surface portion connected to the first side surface; A second bottom surface portion connected to the second side surface; a third bottom surface portion connected to the third side surface; a fourth bottom surface portion connected to the fourth side surface; is formed by A first insertion port is formed at an end of the first side surface on the first bottom surface side, The second bottom surface portion is A main body portion connected to the second side surface; a first insertion piece protruding from the main body toward the first insertion port; having A second insertion port is formed at an end of the third side surface on the third bottom surface side, The fourth bottom surface portion is A main body portion connected to the fourth side surface; a second insertion piece protruding from the main body toward the second insertion port; having The first insertion piece is inserted into the first insertion port, The second insertion piece is inserted into the second insertion opening.

2. The second bottom surface portion further includes a first adhesive portion connected to the main body portion of the second bottom surface portion via a first fold line, The fourth bottom surface portion further includes a second adhesive portion connected to the main body portion of the fourth bottom surface portion via a second fold line, the second bottom surface portion and the third bottom surface portion are bonded to each other at the first adhesive portion, The packaging device according to claim 1 , wherein the fourth bottom surface portion and the first bottom surface portion are bonded to each other at the second adhesive portion.

3. The second side surface and the second bottom surface portion are connected via a third fold line, The third side surface and the third bottom surface portion are connected via a fourth fold line, The third bottom surface portion is An adhesive side edge located on the first adhesive portion side; a non-adhesive side located opposite the first adhesive portion; having an angle of the first fold line relative to the third fold line and an angle of the adhesive side edge of the third bottom surface portion relative to the fourth fold line are equal; The fourth side surface and the fourth bottom surface portion are connected via a fifth fold line, The first side surface and the first bottom surface portion are connected via a sixth fold line, The first bottom surface portion is An adhesive side edge located on the second adhesive portion side; a non-adhesive side edge located on the opposite side to the second adhesive portion; having The packaging device according to claim 2 , wherein an angle of the second fold line relative to the fifth fold line is equal to an angle of the adhesive side edge of the first bottom portion relative to the sixth fold line.

4. The first fold line and the adhesive side edge of the third bottom surface portion overlap each other, The packaging device according to claim 3 , wherein the second fold line and the adhesive side edge of the first bottom portion overlap each other.

5. The first bottom surface portion is A main body portion, a first protrusion protruding from the main body toward the fourth bottom surface; having The third bottom surface portion is A main body portion, a second protruding portion protruding from the main body portion toward the second bottom surface portion; The packaging device according to any one of claims 2 to 4, comprising:

6. A first insertion piece folding curve is formed on the second bottom surface portion, The first insertion piece is bendable along the first insertion piece bending line, A second insertion piece folding curve is formed on the fourth bottom surface portion, The packaging device according to claim 1 , wherein the second insertion piece is foldable along the second insertion piece folding line.

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