Packing box

Abstract

To provide a packing box capable of easily incorporating a support body into a box and stabilizing a content in a state of suspension by the support body.SOLUTION: A packing box 1 has a box body 10 and a support body 70 accommodated in the box body 10. In the support body 70, a support frame plate 71 stacked above a bottom plate 20 of the box body 10 and a leg plate 75 that extends downwardly from the support frame plate 71 are formed. In the support frame plate 71, an opening part 72 into which the contents are fitted is formed. The leg plate 75 is a portion of the support frame plate 71 that blocks at least a portion of the opening part 72. An upper edge of the leg plate 75 is continuously provided at an edge of the opening part 72 via a folded line. A lower edge of the leg plate 75 is in contact with the top surface of the bottom plate 20.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a packaging box.

Background Art

[0002] A cardboard packaging box for accommodating a container filled with fruits and vegetables has a tray-shaped box body and a support body accommodated in the box body. In such a packaging box, the lower part of the container can be fitted into an opening formed in the support frame plate of the support body, so that the container can be accommodated in a suspended state.

[0003] As the support body of the above-described packaging box, there is one in which legs are provided on the support frame plate by folding the middle part of the support frame plate downward (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When assembling the above-described conventional packaging box, since the support body is inserted into the box body while maintaining the folded state of the middle part of the support frame plate, there is a problem that the assembly work of the packaging box becomes complicated.

[0006] An object of the present invention is to solve the above-described problems and provide a packaging box that can easily incorporate a support body into a box body and can stabilize the contents in a suspended state by the support body.

Means for Solving the Problems

[0007] To solve the aforementioned problems, the present invention provides a packaging box comprising a box body and a support body housed within the box body. The support body has a support frame plate stacked at intervals above the bottom plate of the box body and a leg plate extending downward from the support frame plate. The support frame plate has an opening into which the lower part of the contents is fitted, and is configured to support the contents in a suspended state by fitting the lower part of the contents into the opening. The leg plate is formed in the support frame plate and the opening It is fitted into the opening This is the portion that blocked at least a part of the opening. The upper edge of the leg plate is connected to the edge of the opening via a fold line, and the lower edge of the leg plate abuts against the upper surface of the bottom plate. The support has two openings on the left and right, and two leg plates on the left and right. The upper edge of the right leg plate is connected to the left edge of the right opening, and the upper edge of the left leg plate is connected to the right edge of the left opening. The distance between the left and right leg plates in the left-right direction increases from the upper end to the lower end.

[0008] In this invention, when incorporating the support into the box, the leg plates are bent downward relative to the support frame plate, and the support is then inserted into the box, with the lower edge of the leg plates in contact with the upper surface of the bottom plate. In this way, the support can be easily incorporated into the box in the packaging box of this invention.

[0009] Furthermore, by fitting the lower part of the contents into the opening of the support of the present invention, the contents can be stabilized in a suspended state. In this way, vibrations generated during transport are less likely to be transmitted to the contents, thus protecting the contents.

[0010] In this invention, the portion that previously blocked at least a part of the opening of the support frame plate is used as a leg portion, thereby reducing the amount of chips generated when manufacturing the blank sheet for the support.

[0011] In the aforementioned packaging box, it is preferable to form a projection that protrudes downward from the lower edge of the leg plate and to stabilize the leg plate by inserting the projection into a connecting hole formed in the bottom plate.

[0012] The aforementioned packaging box So, The support body has two openings on the left and right sides and two leg plates on the left and right sides, with the upper edge of the right leg plate connected to the left edge of the right opening, and the upper edge of the left leg plate connected to the right edge of the left opening. They are doing it.

[0013] In this way, the stability of the support structure can be increased by supporting the area between the two openings on the left and right with two leg plates. Furthermore, increasing the lateral spacing of the leg plates from the upper end to the lower end enhances the stability of the support structure. It is. [Effects of the Invention]

[0014] In the packaging box of the present invention, a support can be easily incorporated into the box body, and the contents can be stabilized in a suspended state by the support. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view of a packaging box according to an embodiment of the present invention, viewed from the front left upper section. [Figure 2] This figure shows a blank sheet of the box body of a packaging box according to an embodiment of the present invention. [Figure 3] This figure shows a blank sheet of the support material for a packaging box according to an embodiment of the present invention. [Figure 4] This is a perspective view of the support and box body of a packaging box according to an embodiment of the present invention, viewed from the front left upper. [Figure 5] Figure 1 shows a cross-sectional view VV of a packaging box according to an embodiment of the present invention. [Modes for carrying out the invention]

[0016] Embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, the front-back, left-right directions are set for convenience in describing the packaging box of the present embodiment, and do not limit the structure or usage form of the packaging box.

[0017] As shown in FIG. 5, the packaging box 1 of the present embodiment accommodates a plastic container P filled with fresh fruits such as blueberries and strawberries as the contents. As shown in FIG. 1, the packaging box 1 includes a tray-shaped box body 10 and a support body 70 accommodated in the box body 10.

[0018] As shown in FIG. 4, the box body 10 includes a bottom plate 20, front and rear end walls 30, 30 connected to the bottom plate 20, left and right side walls 40, 40 connected to the bottom plate 20, and front and rear crossbars 50, 50 respectively connected to the upper edge portions of the front and rear end walls 30, 30. The box body 10 of the present embodiment is formed in a tray shape with an open upper surface.

[0019] As shown in FIG. 2, the box body 10 of the present embodiment is formed by mountain-folding or valley-folding a blank sheet S1 obtained by cutting out a cardboard sheet at each fold line. The blank sheet S1 shown in FIG. 2 is arranged so that the inner surface side is visible. The fold lines of the blank sheet S1 are ruled lines (pressed ruled lines) formed by linearly pressing the surface of the blank sheet S1. Incidentally, intermittent cuts may be formed in the ruled lines. By doing so, it becomes easier to fold the blank sheet S1 at the fold lines. Alternatively, the fold lines may be formed by intermittently forming half-cut cuts that only cut the surface of the sheet or cuts that penetrate the sheet in a linear manner.

[0020] As shown in FIG. 4, the bottom plate 20 is formed in a quadrilateral shape. A plurality of connection holes 21 are formed in the central portion of the bottom plate 20 in the left-right direction. The connection holes 21 are through holes into which protrusions 76 of the leg plates 75 of the support body 70 described later are inserted (see FIG. 5). In this embodiment, the base plate 20 has five connecting holes 21 arranged in a single row in the front-to-rear direction from the front end to the rear end. Additionally, the connecting holes 21 are arranged in two rows, left and right, on either side of the center of the base plate 20 in the left-to-right direction. Thus, the base plate 20 of this embodiment has ten connecting holes 21 (see Figure 2).

[0021] The front and rear end walls 30, 30 are connected to the front and rear edges of the base plate 20 via bent lines, respectively, and extend upward from the front and rear edges of the base plate 20. The front and rear end walls 30, 30 are formed in the same rectangular shape and are formed perpendicular to the base plate 20.

[0022] The left and right side walls 40, 40 are connected to the left and right edges of the base plate 20 via fold lines, respectively, and extend upward from the left and right edges of the base plate 20. The left and right side walls 40, 40 are formed in the same rectangular shape and are formed perpendicular to the base plate 20.

[0023] Front and rear flaps 41, 41 are connected to the front and rear edges of the side wall 40 via fold lines. The flaps 41 are bent inward relative to the side wall 40 and overlap the inner surface of the end wall 30.

[0024] Pre-drilled holes 42, 42 are formed at the corners between the base plate 20 and the side wall 40. In addition, front and rear insert pieces 43, 43 that protrude upward are formed at the upper edge of the side wall 40. When the packaging boxes 1 shown in Figure 1 are stacked one above the other, the insertion piece 43 of the lower packaging box 1 is inserted into the lower hole 42 of the upper packaging box 1, thereby stabilizing the upper and lower packaging boxes 1,1.

[0025] Front and rear crossbars 50, 50 are connected to the upper edges of the front and rear end walls 30, 30 via bent lines. The crossbars 50 are formed in a strip shape along the upper edge of the end wall 30. The crossbars 50 protrude inward and are formed perpendicular to the end wall 30.

[0026] The left and right ends of the crossbar 50 overlap the upper edges of the side walls 40, respectively. In this way, the crossbar 50 is supported by the left and right side walls 40, 40. Through-holes 51 are formed at the left and right ends of the crossbar 50. Insertion pieces 43 of the side wall 40 are inserted through the through-holes 51. The upper ends of the insertion pieces 43 protrude through the through-holes 51 to the upper surface of the crossbar 50.

[0027] As shown in Figure 4, the support 70 comprises a support frame plate 71 and a plurality of side plates 74 and leg plates 75 extending downward from the support frame plate 71. As shown in Figure 5, the support 70 forms a housing area for a plurality of containers P within the box body 10.

[0028] As shown in Figure 3, the support 70 of this embodiment is formed by folding a blank sheet S2, cut from a corrugated cardboard sheet, along each fold line (mountain fold or valley fold). The blank sheet S2 shown in Figure 3 is arranged so that its inner surface is visible. The fold lines on the blank sheet S2 are creasing lines (pressed lines) formed by pressing linearly into the surface of the blank sheet S2. Intermittent cuts may also be formed along the creasing lines. Doing so makes it easier to fold the blank sheet S2 along the fold lines. Alternatively, a folded line may be formed by creating a series of intermittent cuts, such as half-cuts where only the surface of the sheet is cut, or cuts that penetrate the sheet, to form a linear shape.

[0029] As shown in Figure 4, the support frame plate 71 has a rectangular shape and is fitted into the box body 10 above the bottom plate 20. The support frame plate 71 has multiple openings 72. The openings 72 are rectangular through holes.

[0030] In this embodiment, the support frame plate 71 has five openings 72 arranged in a single row in the front-to-rear direction from the front end to the rear end. In addition, the openings 72 are arranged in two rows on the left and right sides of the central part in the left-to-right direction of the support frame plate 71. Thus, the support frame plate 71 of this embodiment has ten openings 72 (see Figure 3). As shown in Figure 5, the openings 72 are the parts into which the lower part of the container P (contents) is fitted.

[0031] As shown in Figure 4, the left and right side plates 74, 74 are connected to the left and right edges of the support frame plate 71 via fold lines. The side plates 74 are formed in a strip shape along the side edges of the support frame plate 71. The side plates 74 protrude downward and are formed perpendicular to the support frame plate 71 (see Figure 5).

[0032] Multiple leg plates 75 extending downwards are connected to the middle section of the support frame plate 71 in the left-right direction. The leg plate 75 is the part of the support frame plate 71 that covered a portion of the opening 72. The upper edge of the leg plate 75 is connected to the edge of the opening 72 via a fold line. In this embodiment, each of the ten openings 72 is provided with a leg plate 75. That is, five leg plates 75 are arranged in a single row in the front-to-back direction from the front end to the rear end of the support frame plate 71. The leg plates 75 are also arranged in two rows on the left and right, with the central part in the left-to-right direction in between. In this way, the support body 70 of this embodiment has ten leg plates 75 formed on it.

[0033] Of the two leg plates 75, 75 arranged side by side, the upper edge of the right leg plate 75 is connected to the left edge of the right opening 72, and the upper edge of the left leg plate 75 is connected to the right edge of the left opening 72. As shown in Figure 5, a pair of left and right leg plates 75, 75 face each other across the region between the left and right openings 72, 72 in the support frame plate 71. As shown in Figure 4, a projection 76 is formed on the lower edge of the leg plate 75, which protrudes downward (see Figure 3).

[0034] As shown in Figure 5, when the support 70 is housed inside the box 10, the lower edges of the left and right side plates 74, 74 and the lower edges of each leg plate 75 are in contact with the upper surface of the bottom plate 20. As a result, the support frame plate 71 is supported above the base plate 20 by the side plates 74, 74 and each leg plate 75. The support frame plate 71 is stacked above the base plate 20 with gaps in between and is positioned parallel to the base plate 20.

[0035] The projection 76 of the leg plate 75 is inserted into the connecting hole 21 of the base plate 20. This fixes the lower edge of the leg plate 75 to the upper surface of the base plate 20. In this embodiment, the spacing between the left and right connecting holes 21, 21 is set such that the distance between the lower edges of the left and right leg plates 75, 75 is greater than the distance between the upper edges of the left and right leg plates 75, 75. As a result, the distance between the left and right leg plates 75, 75 in the left-right direction increases from the upper end to the lower end.

[0036] In the packaging box 1 described above, as shown in Figure 4, before assembling the support 70 into the box body 10, the side plates 74 and leg plates 75 of the support 70 are bent downward relative to the support frame plate 71. In that state, as shown in Figure 1, the support 70 is inserted into the box body 10. In this case, since it is not necessary to hold the side plates 74 and leg plates 75 of the support 70 by hand, the support 70 can be easily incorporated into the box body 10.

[0037] Next, the lower edges of the side plates 74 and leg plates 75 of the support 70 are brought into contact with the upper surface of the bottom plate 20, and the projections 76 of the leg plates 75 are inserted into the connecting holes 21 of the bottom plate 20, as shown in Figure 5. As a result, the area between the two left and right openings 72, 72 is supported by the two leg plates 75, 75. Furthermore, the distance between the left and right leg plates 75, 75 increases from the upper end to the lower end. Therefore, the stability of the support 70 can be increased by each leg plate 75.

[0038] In the packaging box 1 of this embodiment, the lower part of the container P (contents) can be fitted into the opening 72 of the support 70, thereby stabilizing the container P in a suspended state. This makes it difficult for vibrations generated during transport to be transmitted to the fruits and vegetables inside the container P, thus protecting the fruits and vegetables.

[0039] In the packaging box 1 of this embodiment, as shown in Figure 4, the leg plate 75 is formed by the portion that was blocking a part of the opening 72 of the support frame plate 71, thereby reducing the amount of chips generated when manufacturing the blank sheet S2 shown in Figure 3.

[0040] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and can be modified as appropriate without departing from its spirit. In the packaging box 1 of this embodiment, as shown in Figure 4, ten openings 72 are formed in the support 70, but the number of openings 72 is not limited.

[0041] In the packaging box 1 of this embodiment, leg plates 75 are connected to all of the openings 72 of the support 70, but the number and arrangement of the leg plates 75 are not limited. In the packaging box 1 of this embodiment, the leg plate 75 is formed by the portion that covered a part of the opening 72 of the support frame plate 71, but the leg plate may also be formed by the portion that covered the entire opening 72.

[0042] As shown in Figure 5, the packaging box 1 of this embodiment contains a container P filled with fruits and vegetables as its contents, but the contents that can be contained in the packaging box of the present invention are not limited. Furthermore, the shape and size of the opening 72 of the support 70 are not limited and can be formed appropriately according to the shape and size of the contents.

[0043] As shown in Figure 4, the box body 10 of the packaging box 1 in this embodiment is tray-shaped, but the configuration of the box body is not limited, and the top surface of the box body may be closed with a top plate.

[0044] Although the packaging box 1 in this embodiment is made of corrugated cardboard, the packaging box may also be formed from various known types of paperboard. [Explanation of symbols]

[0045] 1 packaging box 10 box body 20 Bottom plate 21 connecting holes 30 End wall 40 side wall 41 Flap 42 Pilot hole 43 Insertion piece 50 slats 51 Through hole 70 Support 71 Support frame plate 72 Opening 74 Side panel 75 Leg board 76 Protrusion P container S1 Blank Sheet S2 Blank Sheet

Claims

1. The box and, A packaging box having a support housed in the aforementioned box body, The aforementioned support includes, Support frame plates are stacked on top of the bottom plate of the box body with gaps in between, A leg plate extending downward from the support frame plate is formed, The support frame plate has an opening formed in which the lower part of the contents is fitted. The system is configured to support the contents in a suspended state by fitting the lower part of the contents into the aforementioned opening. The leg plate is the part of the support frame plate that was fitted into the opening and closed off at least a portion of the opening. The upper edge of the leg plate is connected to the edge of the opening via a fold line. The lower edge of the leg plate is in contact with the upper surface of the bottom plate. The aforementioned support includes, Two openings on the left and right and two leg plates on the left and right are formed, The upper edge of the right leg plate is connected to the left edge of the right opening. The upper edge of the left leg plate is connected to the right edge of the left opening. A packaging box characterized in that the distance between the left and right leg plates in the left-right direction increases from the upper end to the lower end.

2. A packaging box according to claim 1, The lower edge of the leg plate has a projection that extends downward, The packaging box is characterized in that the aforementioned projection is inserted into a connecting hole formed in the bottom plate.

Images