Packing box

Abstract

To provide a packing box capable of stabilizing a container housed inside to protect contents packed in the container.SOLUTION: There is provided a packing box 1, which comprises a cylindrical trunk part 10 and a bottom part 20 provided at an opening part on a lower side of the trunk part 10. The trunk part 10 has front and rear end walls 11, 11, left and right side walls 12, 12, and at least one inclined wall 15. The inclined wall 15 is formed between an end wall 11 and a side wall 12 which are adjacent to each other. A hole part 16 penetrates the inclined wall 15.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] As a cardboard packing box for accommodating a plastic tray-shaped container filled with fresh fruits such as strawberries, there is one that includes a cylindrical body portion formed by four wall bodies and a bottom portion provided at an opening on the lower side of the body portion (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a container filled with fresh fruits is accommodated in the above-described conventional packing box, if the container shakes vertically in the packing box due to vibration during transportation, the fresh fruits in the container may move greatly and get damaged.

[0005] An object of the present invention is to solve the above-described problems and provide a packing box that can stabilize a container accommodated therein and protect the contents packed in the container.

Means for Solving the Problems

[0006] To solve the above problems, the present invention provides a packing box including a cylindrical body portion and a bottom portion provided at an opening on the lower side of the body portion. A top plate provided in the upper opening of the torso, The body portion has front and rear end walls, left and right side walls, and at least one inclined wall formed between the adjacent end walls and side walls. A hole portion penetrates through the inclined wall. The top plate has an inclined angle portion that overlaps with the upper edge of the inclined wall, and the inclined angle portion protrudes outward from the upper edge of the inclined wall.

[0007] In the packaging box of the present invention, by providing an inclined wall between the end wall and the side wall, the material area can be reduced while maintaining the strength of the packaging box. Furthermore, in the packaging box of the present invention, product information can be printed not only on the outer surfaces of the end walls and side walls but also on the outer surface of the inclined walls, allowing customers to view the product information from multiple directions.

[0008] In the packaging box of the present invention, the container housed inside can be held in place by the body of the box using the holes in the inclined walls. For example, when a container having a protruding portion that extends laterally is housed in the body of the container, the container is held in place by inserting the protruding portion of the container into the hole in the inclined wall. This stabilizes the container inside the packaging box even if the box vibrates during transport. This prevents the contents inside the container from moving and, consequently, protects the contents.

[0010] In the packaging box of the present invention, the protruding portion of the container inserted into the hole from the inner side of the inclined wall will protrude outward from the outer surface of the inclined wall. Packaging box of the present invention Therefore, since the angled portion of the inclined wall protrudes outward more than the upper edge of the inclined wall, the angled portion can protect the protruding part of the container when other components approach the outer surface of the inclined wall.

[0011] The aforementioned packaging box may be provided with a top at the upper opening of the body. Preferably, the top comprises front and rear top plates connected to the upper edges of the end walls, front and rear handle plates connected to both top plates and having gripping holes, and left and right connecting flaps connected to the upper edges of the side walls. Preferably, the two handle plates are stacked front and rear, rising from the two top plates, and the sides of the two handle plates are inserted into insertion holes formed in the connecting flaps. By providing a handle at the top in this way, the packaging box becomes easier to carry.

[0012] The aforementioned packaging box may employ an American lock-type bottom. In this case, the bottom comprises a front flap connected to the lower edge of the front end wall, and left and right side flaps connected to the lower edges of the side walls and overlapping the underside of the front flap. Furthermore, the bottom comprises a rear flap connected to the lower edge of the rear end wall, overlapping the underside of the side flaps, with its tip inserted into the upper side of the front flap. In this way, by closing the bottom using the American lock system, the bottom can be assembled easily and securely, and its strength can be sufficiently increased without the use of adhesive tape or glue.

[0013] In the aforementioned packaging box, if the lower end of the inclined wall protrudes below the edge of the bottom, the edge of the bottom is positioned on the inner side of the lower end of the inclined wall, thus maintaining the inclination angle of the inclined wall relative to the end wall and side wall. Furthermore, since the inclined wall becomes larger in the vertical direction, its strength can be increased. [Effects of the Invention]

[0014] The packaging box of the present invention allows for the stable holding of a container inside the box with a simple structure, thereby protecting the contents packed inside. Furthermore, because an inclined wall is formed between the end wall and the side wall of the packaging box of the present invention, the material area can be reduced while maintaining the strength of the packaging box. Product information can be printed on the outer surface of the inclined wall, allowing customers to view the product information from multiple directions. [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 upper right. [Figure 2] This figure shows a blank sheet of a packaging box according to an embodiment of the present invention. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 1, showing a packaging box according to an embodiment of the present invention. [Figure 4]This is a perspective view of the packaging box according to an embodiment of the present invention as seen from the lower right front. [Figure 5] This is a perspective view of the packaging box according to an embodiment of the present invention as seen from the lower right front before closing the rear flap. [Figure 6] This is a perspective view of the packaging box according to another embodiment of the present invention as seen from the upper right front.

Embodiments 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 explaining the packaging box of the present embodiment, and do not limit the configuration and usage state of the packaging box.

[0017] As shown in FIG. 1, the packaging box 1 of the present embodiment includes a body portion 10 formed in a hexagonal cylindrical shape, a bottom portion 20 provided at the lower opening of the body portion 10, and a top portion 30 provided at the upper opening of the body portion 10.

[0018] As shown in FIG. 3, the packaging box 1 of the present embodiment can accommodate two plastic tray-shaped containers P filled with fruits and vegetables such as strawberries. The container P has an open upper surface, and the opening edge projects to the side. That is, the container P has a flange-shaped protruding portion that projects laterally from the opening edge.

[0019] As shown in FIG. 2, the packaging box 1 is formed by mountain-folding or valley-folding a blank sheet S cut out from a cardboard sheet at each fold line. The blank sheet S shown in FIG. 2 is arranged so that the inner surface side is visible. The fold lines of the blank sheet S are ruled lines (pressed ruled lines) formed by linearly pressing the surface of the blank sheet S. Incidentally, intermittent cuts may be formed in the ruled lines. By doing so, it becomes easier to fold the blank sheet S at the ruled lines. Alternatively, a folded line may be formed by creating intermittent cuts in the sheet, such as half-cuts that cut only the surface, or cuts that penetrate the sheet, to create a linear pattern.

[0020] As shown in Figure 1, the body 10 comprises front and rear end walls 11, 11, left and right side walls 12, 12, and two inclined walls 15, 15 formed between adjacent end walls 11 and side walls 12. The body 10 is formed in a hexagonal cylindrical shape in plan view.

[0021] The end wall 11 and the side wall 12 are formed in a rectangular shape. In this embodiment, the width of the end wall 11 in the left-right direction is greater than the width of the side wall 12 in the front-rear direction.

[0022] The front edge of the left side wall 12 is connected to the left edge of the front end wall 11 via a broken line. The left side wall 12 is positioned perpendicular to the front end wall 11 (see Figure 3). A right-front inclined wall 15 is connected to the right edge of the front end wall 11 via a broken line. The right-front inclined wall 15 is formed as an elongated rectangle along the right edge of the front end wall 11.

[0023] The front edge of the right side wall 12 is connected to the right front inclined wall 15 via a broken line. The right side wall 12 is positioned perpendicular to the front end wall 11 (see Figure 3). The front right inclined wall 15 is inclined with respect to the front end wall 11 and the right side wall 12. The angles of intersection between the front right inclined wall 15 and the front end wall 11, and the angles of intersection between the front right inclined wall 15 and the right side wall 12, are greater than 90 degrees.

[0024] The right edge of the rear end wall 11 is connected to the rear edge of the right side wall 12 via a broken line. The rear end wall 11 is positioned perpendicular to the right side wall 12 (see Figure 3). A left rear inclined wall 15 is connected to the left edge of the rear end wall 11 via a broken line. The left rear inclined wall 15 has the same shape as the right front inclined wall 15. As shown in Figure 3, the two inclined walls 15, 15 are positioned diagonally opposite each other on the body 10.

[0025] A connecting piece 13 (see Figure 1) is connected to the left edge of the left rear inclined wall 15 via a broken line. The connecting piece 13 is joined to the inner surface of the left side wall 12. As the blank sheet S (see Figure 2) is folded along each fold line, and the joining piece 13 is joined to the inner surface of the left side wall 12, a hexagonal cylindrical body 10 is formed in plan view by the front and rear end walls 11, 11, the left and right side walls 12, 12, and the two inclined walls 15, 15.

[0026] As shown in Figure 4, the bottom portion 20 includes a front flap 21 connected to the lower edge of the front end wall 11, a rear flap 22 connected to the lower edge of the rear end wall 11, and left and right side flaps 23, 23 connected to the lower edges of the left and right side walls 12, 12.

[0027] As shown in Figure 5, the front flap 21 is connected to the lower edge of the front end wall 11 via a fold line. The front flap 21 is bent backward relative to the front end wall 11, closing off the front half of the opening on the underside of the body 10.

[0028] The left edge of the front flap 21 is formed along the lower edge of the left side wall 12. The rear part of the right edge of the front flap 21 is formed along the lower edge of the right side wall 12, and the front part of the right edge of the front flap 21 is formed along the lower edge of the right front inclined wall 15.

[0029] In the packaging box 1 of this embodiment, the lower end portion 15a of the right front inclined wall 15 is configured to protrude downward from the front portion of the right edge of the front flap 21. The front portion of the right edge of the front flap 21 is in contact with the inner surface of the lower end portion 15a of the right front inclined wall 15. This maintains the inclination angle of the right front inclined wall 15 relative to the end wall 11 and the side wall 12.

[0030] The left side flap 23 is connected to the lower edge of the left side wall 12 via a fold line. The front part of the left side flap 23 overlaps the lower surface of the left part of the front flap 21. The right-side flap 24 is connected to the lower edge of the right-side wall 12 via a fold line. The front part of the right-side flap 24 overlaps the lower surface of the right-side part of the front flap 21.

[0031] The rear flap 22 is connected to the lower edge of the rear end wall 11 via a broken line. The rear flap 22 is formed in a trapezoidal shape, with its width narrowing in the lateral direction from the base end (rear end) to the tip end (front end) (see Figure 3). The rear of the left edge of the rear flap 22 is formed along the lower edge of the left rear inclined wall 15. As shown in Figure 4, the rear flap 22 overlaps the lower surfaces of the left and right side flaps 23, 23, and its tip is inserted into the upper side of the central part of the front flap 21.

[0032] In the packaging box 1 of this embodiment, the lower end 15a of the left rear inclined wall 15 is configured to protrude downward from the rear of the left edge of the rear flap 22. The rear of the left edge of the rear flap 22 is in contact with the inner surface of the lower end 15a of the left rear inclined wall 15. This maintains the inclination angle of the left rear inclined wall 15 relative to the end wall 11 and the side wall 12.

[0033] In the packaging box 1 of this embodiment, the bottom 20 is closed by combining the front flap 21, the left and right side flaps 23, 23 and the rear flap 22 in an American lock system.

[0034] As shown in Figure 1, the top section 30 includes front and rear top plates 31, 31 connected to both end walls 11, 11, front and rear handle plates 32, 32 connected to both top plates 31, 31, and left and right connecting flaps 33, 33 connected to both side walls 12, 12.

[0035] The front top plate 31 is connected to the upper edge of the front end wall 11 via a fold line. The front top plate 31 closes the front half of the upper opening of the body 10.

[0036] A slanted corner portion 31a is formed at the front right corner of the top plate 31, overlapping with the upper edge of the front right slanted wall 15. The leading edge of the slanted corner portion 31a is formed along the upper edge of the slanted wall 15. The leading edge of the slanted corner portion 31a protrudes outward from the upper edge of the slanted wall 15. In other words, the leading edge of the slanted corner portion 31a protrudes from the upper edge of the outer surface of the front right slanted wall 15.

[0037] The rear top plate 31 is connected to the upper edge of the rear end wall 11 via a bent line. The rear top plate 31 closes the rear half of the upper opening of the body 10.

[0038] Similar to the front top plate 31, an inclined angle portion 31a is formed at the left rear corner of the rear top plate 31. The tip of this inclined angle portion 31a protrudes outward from the upper edge of the left rear inclined wall 15.

[0039] A front handle plate 32 is attached to the rear edge of the front top plate 31 via a folded line, and a rear handle plate 32 is attached to the front edge of the rear top plate 31 via a folded line. The handle plates 32 are positioned perpendicular to the top plate 31. A gripping hole 34 is formed in the center of the lower part of the handle plate 32.

[0040] The front and rear handle plates 32, 32 are stacked on top of each other, and the front and rear hand holes 34, 34 are connected. The two handle plates 32, 32 are handles for gripping the packaging box 1 when carrying it, by putting fingers through the two hand holes 34, 34. The left and right sides of the handle plate 32 have engaging portions 32b, 32b that protrude upward.

[0041] The left and right connecting flaps 33, 33 are connected to the upper edges of the left and right side walls 12, 12 via a folded line. The connecting flaps 33 extend upward from the upper edges of the side walls 12. The connecting flaps 33 have insertion holes 33a that extend in the vertical direction (see Figure 2).

[0042] The connecting flap 33 is tilted inward relative to the side wall 12, and the engaging portions 32b, 32b of both handle plates 32, 32 are inserted into the insertion holes 33a of the connecting flap 33, thereby fixing the two handle plates 32, 32 in a state where they are stacked front to back. As a result, the front and rear top plates 31, 31 are fixed in a closed position, and the upper opening of the body 10 is closed by both top plates 31, 31.

[0043] In the packaging box 1 of this embodiment, a hole 16 penetrates the middle of the inclined wall 15 in the vertical direction. The hole 16 is a rectangular through-hole extending in the left-right direction and is formed across both side edges of the inclined wall 15. As shown in Figure 3, the hole 16 allows the corner P1 of the protruding part (opening edge) of the container P housed inside the body 10 to be inserted.

[0044] The front right corner P1 of the protruding part of the container P housed in the right half of the internal space of the body 10 is inserted into the hole 16 of the front right inclined wall 15. The rear left corner P1 of the protruding part of the container P housed in the left half of the internal space of the body 10 is inserted into the hole 16 of the rear left inclined wall 15. The vertical position of the hole 16 in the inclined wall 15 is not limited, but is set to match the height of the corner P1 of the protruding part of the container P housed in the body 10.

[0045] In the packaging box 1 described above, as shown in Figure 3, the container P is held in place by the body 10 by inserting the corner P1 of the protruding part of the container P housed inside into the hole 16 of the inclined wall 15. This ensures that the container P inside the packaging box 1 remains stable even if the packaging box 1 vibrates during transport. In particular, it effectively suppresses vertical movement of the container P. Therefore, the packaging box 1 of this embodiment can prevent the fruits and vegetables packed inside the container P from moving, thereby protecting the fruits and vegetables.

[0046] In this embodiment of the packaging box 1, the corner P1 of the protruding part of the container P inserted into the hole 16 of the inclined wall 15 protrudes outward from the outer surface of the inclined wall 15. In this embodiment of the packaging box 1, as shown in Figure 1, the inclined corner 31a of the top plate 31 protrudes outward from the outer surface of the inclined wall 15, so that even when other members approach the outer surface of the inclined wall 15, the inclined corner 31a can protect the container P (see Figure 3).

[0047] Furthermore, in the packaging box 1 of this embodiment, by providing an inclined wall 15 between the end wall 11 and the side wall 12, the material area of ​​the body portion 10 can be reduced while maintaining the vertical strength of the packaging box 1. In this embodiment, the body 10 of the packaging box 1 is formed in a hexagonal shape with inclined walls 15, 15 provided at two of its four corners (see Figure 3). The other two corners of the body 10 are formed at right angles. With this configuration, the circumferential shape of the body 10 is more stable when empty compared to the case where inclined walls 15 are provided at all corners of the body 10, making it easier to assemble the bottom 20 and top 30.

[0048] Furthermore, in the packaging box 1 of this embodiment, product information can be printed not only on the outer surfaces of the end wall 11 and side wall 12, but also on the outer surface of the inclined wall 15. As a result, when the packaging box 1 is placed on the sales floor, customers can clearly see the product information from the front, back, left, right, and diagonally, thus effectively promoting the products contained inside the packaging box 1.

[0049] In the packaging box 1 of this embodiment, as shown in Figure 4, the bottom 20 is closed using an American lock system, so the bottom 20 can be assembled easily and reliably, and the strength of the bottom 20 can be sufficiently increased without using adhesive tape or glue.

[0050] In the packaging box 1 of this embodiment, the lower end portion 15a of the inclined wall 15 protrudes below the edge of the bottom portion 20, and the edge of the bottom portion 20 is in contact with the inner surface of the lower end portion of the inclined wall 15. Therefore, the inclination angle of the inclined wall 15 with respect to the end wall 11 and the side wall 12 can be maintained. In addition, since the inclined wall 15 is larger in the vertical direction, the strength of the inclined wall 15 can be increased.

[0051] In this embodiment, as shown in Figure 1, the packaging box 1 is made easier to carry by providing a handle on the top 30.

[0052] 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 1, a rectangular hole 16 is opened in the inclined wall 15. However, the shape of the hole 16 is not limited; for example, the hole 16 may be formed in the shape of an elongated slit. Alternatively, the hole 16 may be made larger in the vertical direction. For example, the hole 16 may be opened from the lower end of the inclined wall 15 to a predetermined height. In this case, the contents can be seen from outside the packaging box 1 through the hole 16. Furthermore, the hole 16 may not be formed across both side edges of the inclined wall 15, and the hole 16 may be located away from the side edges of the inclined wall 15.

[0053] In this embodiment, the packaging box 1 is provided with a handle on the top 30, but the configuration of the top 30 is not limited. For example, as shown in Figure 6, the front and rear outer flaps 35, 35 connected to the front and rear end walls 11, 11 may be superimposed on the upper surfaces of the left and right inner flaps 36, 36 connected to the left and right side walls 12, 12, and the leading edges of both outer flaps 35, 35 may be brought together. Alternatively, the upper opening of the body 10 may be closed with a single top plate.

[0054] Furthermore, in the packaging box 1 of this embodiment, as shown in Figure 1, the upper opening of the body portion 10 is closed by the top portion 30, but an opening may be formed in the top portion 30. Alternatively, the packaging box 1 may be formed in a tray shape without providing a top portion 30 in the upper opening of the body portion 10.

[0055] Furthermore, in the packaging box 1 of this embodiment, the bottom 20 is closed using an American lock system, as shown in Figure 4, but the configuration of the bottom 20 is not limited. For example, the bottom 20 may be formed by butting the leading edges of two flaps together. Alternatively, the opening on the lower side of the body 10 may be closed with a single bottom plate.

[0056] Furthermore, the width and height of the end wall 11, side wall 12, and inclined wall 15 of the packaging box 1 are not limited. Furthermore, the number and angle of inclination of the inclined walls 15 are not limited. For example, by providing four inclined walls 15 on the body 10, an octagonal cylindrical body 10 can be formed, or by providing one inclined wall 15 on the body 10, a pentagonal cylindrical body 10 can be formed. Alternatively, the end walls 11, 11 of the packaging box 1, the side walls 12, 12, and each inclined wall 15 may be formed to the same width, so that the body 10 is formed into a regular hexagonal or regular octagonal cylindrical shape.

[0057] As shown in Figure 3, the packaging box 1 of this embodiment can accommodate two tray-shaped containers P, each having a flange-shaped projection at its opening edge, side by side. However, the shape and number of containers that can be accommodated in the packaging box of the present invention are not limited. For example, it may be configured to accommodate containers with projections formed on the upper, middle, or lower parts of the wall.

[0058] Although the packaging box 1 in this embodiment is made of corrugated cardboard, the packaging box 1 can also be formed from various known types of paperboard. [Explanation of symbols]

[0059] 1 packaging box 10 Torso 11 End wall 12 Side wall 13 Joint piece 15 Slanted wall 16 Hole 20 bottom 21 Front flap 22 Rear flap 23 Side flaps 24 Side flaps 30 Top 31 Top plate 31a Slanted corner part 32 Handle plate 32b Engagement part 33 Connecting flaps 33a Insertion hole 34 Handholes 35 Outer flap 36 Inner flap P container P1 Corner S Blank Sheet

Claims

1. It is a packaging box, A cylindrical body, The bottom portion provided at the lower opening of the body, The body comprises a top plate provided at the upper opening of the body, The body portion has front and rear end walls, left and right side walls, and at least one inclined wall. The inclined wall is formed between the adjacent end wall and the side wall, The aforementioned inclined wall has a hole that penetrates it. The top plate has an inclined angle portion that overlaps with the upper edge of the inclined wall. A packaging box characterized in that the inclined angle portion protrudes outward from the upper edge portion of the inclined wall.

2. A packaging box according to claim 1, The body portion is capable of accommodating a container having a portion of it that protrudes laterally. A packaging box characterized in that the protruding portion of the container can be inserted into the hole in the inclined wall.

3. A packaging box according to claim 1, The torso is provided with a top portion located at the upper opening. The aforementioned top is, The front and rear top plates are connected to the upper edges of the aforementioned end walls, Front and rear handle plates, which are connected to the two top plates and have hand-holding holes formed therein, It comprises left and right connecting flaps connected to the upper edges of the aforementioned side walls, The two handle plates are stacked front to back, rising from the two top plates. A packaging box characterized in that the sides of the two handle plates are inserted into insertion holes formed in the connecting flap.

4. A packaging box according to claim 1, The bottom is, A front flap is provided connected to the lower edge of the front end wall, The left and right side flaps are connected to the lower edges of the aforementioned side walls and overlapped with the lower surface of the front flap, A packaging box characterized by comprising a rear flap that is connected to the lower edge of the rear end wall, overlaps the lower surface of the side flaps, and has its tip inserted into the upper surface of the front flap.

5. A packaging box according to claim 1, A packaging box characterized in that the lower end of the inclined wall protrudes below the edge of the bottom.

Images