JP2016068984A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box which can be stacked simply and stably.SOLUTION: A packing box 1 is equipped with: a bottom plate 10; a pair of front and rear end walls 11, 12 and a pair of left and right side walls 13, 14 which are provided continuously with the bottom plate 10; and top plates 21, 22 which are provided continuously with upper edge parts of the left and right side walls 13, 14. A clearance between the upper edge parts of both side walls 13, 14 is so made as to be larger than a width of the bottom plate 10 in a longitudinal direction. Left and right side edge parts of the bottom plate 10 are provided with two front and rear lower side projection pieces 31, 31 which are laterally projected, the upper edge parts of the left and right side walls 13, 14 are provided with an upper side projection piece 32 which is projected upwards. The upper side projection piece 32 is formed at a corresponding position between both lower side projection pieces 31, 31.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a packaging box.

  In some cases, a plurality of packaging boxes are stacked during transportation or storage. As a packaging box suitable for stacking, there is one in which a fitting groove is formed in the side edge portion of the bottom plate of the packaging box and an insertion piece projects from the upper edge portion of the side wall (for example, Patent Document 1). reference). In this configuration, when the insertion piece of the lower packaging box is inserted into the fitting groove of the upper packaging box, the upper and lower packaging boxes can be stabilized.

JP 2014-19445 A

  As described above, in the configuration in which the insertion piece of the lower packaging box is inserted into the fitting groove of the upper packaging box, the alignment of the insertion piece and the fitting groove is difficult, so the work of stacking the packaging boxes is complicated. There is a problem of becoming.

  An object of the present invention is to solve the above-described problems and to provide a packaging box that can be easily and stably stacked.

  A packaging box of the present invention that solves the above problems includes a bottom plate, a pair of front and rear end walls and a pair of left and right side walls that are connected to the bottom plate, and a top plate that is connected to the upper edge of the side wall. The space between the upper edges of the side walls is larger than the width in the left-right direction of the bottom plate. The bottom edge of the bottom plate is formed with two front and rear lower protruding pieces protruding sideways, and the upper edge of the side wall is formed with an upper protruding piece protruding upward. . The upper protruding piece is formed at a position corresponding to between the lower protruding pieces.

When two packaging boxes of the present invention are prepared and the other packaging box is placed on the top plate of one packaging box, the bottom plate of the upper packaging box is arranged between the left and right upper protruding pieces of the lower packaging box. The The upper protruding piece of the lower packaging box is disposed between the lower protruding pieces before and after the upper packaging box.
Thus, according to the present invention, the bottom plate of the upper packaging box is sandwiched by the left and right upper projecting pieces of the lower packaging box, and the lower packaging is provided by the front and rear lower projecting pieces of the upper packaging box. The upper protruding piece of the box can be sandwiched. Thereby, since it can prevent that an upper packaging box shifts back and forth and right and left with respect to a lower packaging box, a packaging box can be easily stabilized and stacked.

  A packaging box of another configuration of the present invention that solves the above problems includes a bottom plate, a pair of front and rear end walls and a pair of left and right side walls that are connected to the bottom plate, and a top plate that is connected to the upper edge of the side wall. And the distance between the upper edge portions of the side walls is larger than the width in the left-right direction of the bottom plate. A lower protruding piece projecting sideways is formed on the side edge portion of the bottom plate, and two front and rear upper projecting pieces projecting upward are formed on the upper edge portion of the side wall. . The lower protruding piece is formed at a position corresponding to the space between the upper protruding pieces.

When two other packaging boxes of the present invention are prepared and the other packaging box is placed on the top plate of one packaging box, the upper packaging box is placed between the left and right upper protruding pieces of the lower packaging box. A bottom plate is arranged. The lower protruding piece of the upper packaging box is disposed between the upper protruding pieces before and after the lower packaging box.
Thus, according to the present invention, the upper packaging box is sandwiched between the left and right upper projecting pieces of the lower packaging box and the upper projecting pieces before and after the lower packaging box. It is comprised so that the lower side protrusion piece may be inserted | pinched. Thereby, since it can prevent that an upper packaging box shifts back and forth and right and left with respect to a lower packaging box, a packaging box can be easily stabilized and stacked.

  In the packaging box described above, it is desirable that the lower protruding piece is a portion separated from the side wall. In this configuration, by bending the side wall with respect to the bottom plate, the lower protruding piece can be protruded from the side edge of the bottom plate, so that the working efficiency when assembling the packaging box can be increased.

  In the packaging box described above, it is desirable that the upper projecting piece is a portion separated from the top plate. In this configuration, by bending the top plate with respect to the side wall, the upper protruding piece can be protruded from the upper edge of the side wall, so that the working efficiency when assembling the packaging box can be increased.

  In the present invention, the protruding pieces formed in the packaging box can prevent the upper packaging box from shifting back and forth and from side to side with respect to the lower packaging box, so that the packaging boxes can be easily and stably stacked. it can.

It is the perspective view which showed the packaging box which concerns on embodiment of this invention. It is the figure which showed the blank sheet of the packaging box which concerns on embodiment of this invention. It is a perspective view of the state where the end wall and side wall of the packaging box concerning the embodiment of the present invention were bent to the bottom board. It is a perspective view of the state where the packaging box concerning the embodiment of the present invention was piled up. It is AA sectional drawing of FIG. It is the perspective view which showed the modification of the packaging box which concerns on embodiment of this invention.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following description, the front, rear, left, and right directions are set for convenience in describing the packaging box of the present embodiment, and do not specify the configuration of the packaging box of the present invention.

As shown in FIG. 1, the packaging box 1 of this embodiment is a cardboard box, for example, a box for storing a plurality of cup-shaped products side by side.
The packaging box 1 of this embodiment is comprised so that the some packaging box 1 can be piled up at the time of conveyance and storage, as shown in FIG.

  As shown in FIG. 1, the packaging box 1 includes a bottom plate 10, a pair of front and rear end walls 11, 12 and a pair of left and right side walls 13, 14 connected to the bottom plate 10, and upper edges of both side walls 13, 14. And a pair of left and right top plates 21 and 22 connected to each other.

As shown in FIG. 2, the packaging box 1 is formed by valley-folding a blank sheet S obtained by cutting out a sheet of corrugated cardboard at each fold line (ruled line). The blank sheet S shown in FIG. 2 is arranged so that the inner surface side can be seen.
Each fold line of the blank sheet S is a linear groove formed by pressing the surface of the blank sheet S. In addition, you may form a notch in a broken line. If it does in this way, it will become easy to bend the blank sheet S in a fold line.

  As shown in FIG. 1, the bottom plate 10 is formed in a rectangular shape and has a length in the front-rear direction that is greater than a length in the left-right direction.

A front end wall 11 is connected to the front edge of the bottom plate 10 via a fold line L1 (see FIG. 2).
The front end wall 11 extends upward from the front edge of the bottom plate 10. The front end wall 11 is formed at a right angle to the bottom plate 10.
The front end wall 11 is formed in a trapezoidal shape in which the width in the left-right direction gradually increases from the lower edge to the upper edge (see FIG. 2). Further, the front end wall 11 is formed so that the length in the left-right direction is larger than the length in the vertical direction.

A rear end wall 12 is connected to the rear edge of the bottom plate 10 via a fold line L2 (see FIG. 2).
The rear end wall 12 extends upward from the rear edge of the bottom plate 10. The rear end wall 12 is formed at a right angle to the bottom plate 10. The rear end wall 12 has the same shape as the front end wall 11.

A left side wall 13 is connected to the left edge of the bottom plate 10 via a fold line L3 (see FIG. 2).
The left side wall 13 extends upward from the left edge portion of the bottom plate 10 along the left edge portions of the front and rear end walls 11 and 12. That is, the left side wall 13 is tilted so that the distance from the right side wall 14 increases as it goes upward from the lower edge thereof.

Inner flaps 15, 15 are connected to the front edge portion and the rear edge portion of the left side wall 13 via folding lines L 4, L 4 (see FIG. 2).
The inner flap 15 extends rightward from the front edge or the rear edge of the left side wall 13. The inner flap 15 is formed at a right angle to the left side wall 13.
The front inner flap 15 is bonded to the inner surface of the front end wall 11 with an adhesive, and the rear inner flap 15 is bonded to the inner surface of the rear end wall 12 with an adhesive (see FIG. 1).

A top plate 21 on the left side is connected to the upper edge of the left side wall 13 via a fold line L5 (see FIG. 2).
The left top plate 21 extends rightward from the upper edge of the left wall 13. The left top plate 21 is formed in a strip shape along the upper edge of the left wall 13 (see FIG. 1).

Outer flaps 23, 23 are connected to the front edge portion and the rear edge portion of the left top plate 21 via folding lines L 6, L 6 (see FIG. 2). The broken line L6 is intermittently formed with cuts.
The outer flap 23 extends downward from the front edge or rear edge of the left top plate 21. The outer flap 23 is formed at a right angle to the left side wall 13.
The front outer flap 23 is bonded to the outer surface of the front end wall 11 with an adhesive, and the rear outer flap 23 is bonded to the outer surface of the rear end wall 12 with an adhesive.

The packaging box 1 of this embodiment is formed in a symmetrical shape. Therefore, detailed description of the configuration of the right side wall 14 and the right top plate 22 of the packaging box 1 is omitted.
A right side wall 14 is connected to the right edge of the bottom plate 10 via a fold line L7 (see FIG. 2). The right side wall 14 is tilted so that the distance from the left side wall 13 increases as it goes upward from its lower edge.

  In the packaging box 1 of the present embodiment, the distance between the left and right side walls 13 and 14 is gradually increased from the lower end to the upper end. Therefore, in the packaging box 1, the interval between the upper edge portions of the left and right side walls 13 and 14 is larger than the width of the bottom plate 10 in the left and right direction.

  Inner flaps 16, 16 are connected to the front edge portion and the rear edge portion of the right side wall 14 via fold lines L 8, L 8 (see FIG. 2). The inner flap 16 is joined to the inner surface of the front end wall 11 or the rear end wall 12.

  A right top plate 22 is connected to the upper edge of the right side wall 14 via a fold line L9 (see FIG. 2). Between the right top plate 22 and the left top plate 21, there is an interval in the left-right direction. Thereby, the rectangular opening part 25 is formed in the center part of the left-right direction of the upper surface of the packaging box 1 ranging from a front edge part to a rear edge part.

  Outer flaps 24 and 24 (see FIG. 2) are connected to the front edge portion and the rear edge portion of the left top plate 21 via folding lines L10 and L10 (see FIG. 2). The outer flap 24 is joined to the outer surface of the front end wall 11 or the rear end wall 12.

In the packaging box 1 of the present embodiment, the product can be packaged by closing the left and right top plates 21 and 22 in a state where the product is accommodated.
And when taking out goods from the packaging box 1, if the inner edge part of the left and right top plates 21 and 22 is pulled up, the fold lines L6 and L10 will be cut open, and the left and right top plates 21 and 22 will be at the front and rear ends with the fold lines L6 and L10 as a boundary. Separated from the walls 11 and 12.
In this way, the entire top surface of the packaging box 1 can be opened by raising the left and right top plates 21 and 22 with respect to the left and right side walls 13 and 14.

Two lower protruding pieces 31, 31 are formed on the left edge of the bottom plate 10 of the packaging box 1 of the present embodiment. The front and rear lower projecting pieces 31 and 31 are arranged with a space in the front and rear with the central portion of the left edge of the bottom plate 10 in between.
The lower protruding piece 31 is a portion protruding from the left edge of the bottom plate 10 toward the side (left side). The lower protruding piece 31 is formed in a trapezoidal shape whose width gradually decreases from the left edge of the bottom plate 10 toward the side.

The lower protruding piece 31 is a part cut off from the lower part of the left side wall 13. As shown in FIG. 2, in the state of the blank sheet S, the lower protruding piece 31 is formed at a position that enters the left side wall 13 with respect to the folding line L <b> 3, and is cut from the left side wall 13.
Similarly to the front and rear lower protrusions 31 and 31 of the left edge, the front and rear lower protrusions 31 and 31 are also formed on the right edge of the bottom plate 10 (see FIG. 1).

As shown in FIG. 3, when assembling the packaging box 1 from the state of the blank sheet S (see FIG. 2), if the left and right side walls 13 and 14 are bent with respect to the bottom plate 10, the lower protruding pieces 31 are left and right. It will be in the state which left | separated from the side walls 13 and 14 and protruded from the right and left edge part of the baseplate 10 to the side.
As described above, in the packaging box 1, the lower protruding pieces 31 can be protruded from the left and right side edges of the bottom plate 10 by simply bending the left and right side walls 13 and 14 with respect to the bottom plate 10. The working efficiency when assembling the box 1 can be increased.
In the left and right side walls 13, 14, through holes 31 a are formed in portions where the lower protruding pieces 31, 31 are separated.

As shown in FIG. 1, an upper protruding piece 32 is formed on the upper edge portion of the left side wall 13 of the packaging box 1 of the present embodiment.
The upper protruding piece 32 is formed at a corresponding position between the front and rear lower protruding pieces 31, 31. That is, the upper protruding piece 32 is formed immediately above the region between the front and rear lower protruding pieces 31, 31. The upper protruding piece 32 of this embodiment is formed at the center of the upper edge of the left side wall 13.

  The upper protruding piece 32 is a portion protruding upward from the upper edge portion of the left side wall 13. The upper protruding piece 32 is formed in a trapezoidal shape whose width gradually decreases from the upper edge of the left side wall 13 toward the upper side.

  In this embodiment, as shown in FIG. 4, when the two packaging boxes 1, 1 are stacked one above the other, the lower packaging box is interposed between the lower projecting pieces 31, 31 of the upper packaging box 1. One upper protruding piece 32 is configured to enter.

The upper protruding piece 32 is a part cut off from the left top plate 21. As shown in FIG. 2, in the state of the blank sheet S, the upper protruding piece 32 is formed at a position entering the top plate 21 on the left side of the folding line L5 and is cut from the left top plate 21.
Moreover, the upper side protrusion piece 32 is formed also in the upper edge part of the right side wall 14 like the above-mentioned upper side protrusion piece 32 of the left side wall 13 (refer FIG. 1).

  As shown in FIG. 1, when the left and right top plates 21 and 22 are bent with respect to the left and right side walls 13 and 14 when the packaging box 1 is assembled from the state of the blank sheet S (see FIG. 2), the upper protruding piece 32. Is separated from the left and right top plates 21 and 22 and protrudes upward from the upper edges of the left and right side walls 13 and 14.

Thus, in the packaging box 1, the upper protruding pieces 32 can be protruded from the left and right side walls simply by bending the left and right top plates 21, 22 with respect to the left and right side walls 13, 14. When working efficiency can be increased.
In the left and right top plates 21 and 22, a through hole 32 a is formed at a portion where the upper protruding piece 32 is separated.

In the packaging box 1 as described above, as shown in FIG. 5, when another packaging box 1 is placed on the upper surfaces of the left and right top plates 21 and 22 of the packaging box 1 (see FIG. 4), Between the left and right upper protruding pieces 32, 32, the bottom plate 10 of the upper packaging box 1 is disposed.
Thereby, since the bottom plate 10 of the upper packaging box 1 is sandwiched between the left and right upper projecting pieces 32, 32 of the lower packaging box 1, the upper packaging box 1 is It can prevent shifting to the left and right.

As shown in FIG. 4, the upper protruding piece 32 of the lower packaging box 1 is disposed between the front and rear lower protruding pieces 31, 31 of the upper packaging box 1.
Thereby, since the upper protruding piece 32 of the lower packaging box 1 is sandwiched between the left and right lower protruding pieces 31 of the upper packaging box 1, the upper packaging with respect to the lower packaging box 1 is performed. It is possible to prevent the box 1 from shifting back and forth.

  Thus, in the packaging box 1 of this embodiment, the upper packaging box 1 is shifted from front to back and left and right with respect to the lower packaging box 1 by the protruding pieces 31 and 32 formed on the packaging box 1 and 1. Since it can prevent, the packaging boxes 1 and 1 can be easily stabilized and stacked.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
For example, as in a packaging box 1A shown in FIG. 6, a lower protruding piece 31 is formed on the side edge of the bottom plate 10, and two front and rear upper protruding pieces 32, 32 are formed on the upper edge of the left side wall 13. Also good.
In this configuration, the lower protruding piece 31 of the upper packaging box 1A is disposed between the upper and lower protruding pieces 32, 32 before and after the lower packaging box 1A.
The bottom plate 10 of the upper packaging box 1A is sandwiched between the left and right upper projecting pieces 32, 32 of the lower packaging box 1A, and the upper projecting pieces 32, 32 before and after the lower packaging box 1A are sandwiched. In the middle, the lower protruding piece 31 of the upper packaging box 1A is sandwiched. Thereby, it is possible to prevent the upper packaging box 1A from shifting from front to back and from side to side with respect to the lower packaging box 1A.

  In this embodiment, as shown in FIG. 4, when the two packaging boxes 1 and 1 are stacked, one set of combinations of the lower protruding piece 31 and the upper protruding piece 32 is formed on the left and right. However, a plurality of combinations of the lower protruding piece 31 and the upper protruding piece 32 may be formed on the left and right.

Moreover, the structure of the top plate which closes the upper surface of the packaging box 1 shown in FIG. 1 is not limited. For example, you may comprise so that the whole upper surface of the packaging box 1 may be covered with one top plate. Furthermore, you may comprise a top plate so that opening and closing is possible.
Further, by providing engaging means for engaging the end portions of the outer flaps 23, 24 provided continuously with the top plates 21, 22 with the end walls 11, 12 or the bottom plate 10, the outer flaps 23, 24 are connected to the end walls 11 with each other. , 12 can be configured not to be joined by an adhesive.

  Although the packaging box 1 of this embodiment is made of cardboard, the packaging box may be formed of various known paperboards.

DESCRIPTION OF SYMBOLS 1 Packaging box 1A Packaging box 10 Bottom plate 11 Front end wall 12 Rear end wall 13 Left side wall 14 Right side wall 15 Inner flap 16 Inner flap 21 Left top plate 22 Right top plate 23 Outer flap 24 Outer flap 31 Lower projecting piece 32 Upper projecting piece S Blank sheet

Claims (4)

The bottom plate,
A pair of front and rear end walls and a pair of left and right side walls connected to the bottom plate;
A top plate connected to the upper edge of the side wall,
The distance between the upper edges of the side walls is larger than the width in the left-right direction of the bottom plate,
The bottom edge of the bottom plate is formed with two front and rear lower protruding pieces protruding sideways,
The upper edge of the side wall is formed with an upper protruding piece protruding upward,
The packaging box, wherein the upper protruding piece is formed at a position corresponding to between the lower protruding pieces. The bottom plate,
A pair of front and rear end walls and a pair of left and right side walls connected to the bottom plate;
A top plate connected to the upper edge of the side wall,
The distance between the upper edges of the side walls is larger than the width in the left-right direction of the bottom plate,
On the side edge portion of the bottom plate, a lower protruding piece protruding toward the side is formed,
The upper edge of the side wall is formed with two front and rear upper protruding pieces protruding upward,
The lower projecting piece is formed at a position corresponding to between the upper projecting pieces.   The packaging box according to claim 1, wherein the lower projecting piece is a portion separated from the side wall.   The packaging box according to any one of claims 1 to 3, wherein the upper protruding piece is a portion separated from the top plate.

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