JP7318452B2 - packaging box - Google Patents

Description

The present invention relates to packaging boxes.

As a packaging box, there is a packaging box that includes a square tube-shaped body having front and rear end walls and left and right side walls, and an upper lid and a lower lid formed on the body (for example, Patent Document 1 reference). The top cover of a conventional packaging box includes front and rear end flaps connected to front and rear end walls and left and right side flaps connected to left and right side walls. The front and rear support portions of the end flaps are respectively inserted into the insertion openings of the front and rear end flaps.

Japanese Utility Model Publication No. 58-34008

In the above-described conventional packaging box, if there is a space between the upper surface of the contents and the side flaps, the end flaps may be pushed into the body when the support portion of the side flaps is inserted into the insertion opening of the end flaps. There is a problem that it is difficult to connect the side flaps to the end flaps.

An object of the present invention is to solve the above-described problems and to provide a packaging box capable of improving work efficiency when assembling the lid portion.

In order to solve the above-mentioned problems, the present invention provides a packaging box, which comprises a cylindrical body having front and rear end walls and left and right side walls, and a lid provided at an upper or lower opening of the body. and The lid portion includes a front flap connected to the front end wall, a rear flap connected to the rear end wall, first side flaps connected to the left and right side walls, and and a second side flap. The front flap is formed with a first insertion port and a second insertion port spaced apart in the left-right direction. The front of the first side flap overlaps the outer surface of the front flap and the side of the rear flap overlaps the outer surface of the first side flap. The rear portion of the second side flap overlaps the outer surface of the rear flap, and the front portion of the second side flap overlaps the outer surface of the front flap. A first supporting portion formed on the first side flap is inserted into the first insertion opening of the front flap and locked to the inner surface of the front flap. A second supporting portion formed on the second side flap is inserted into the second insertion opening of the front flap and locked to the inner surface of the front flap. The width of the first support portion in the front-rear direction is formed larger than the width of the second support portion in the front-rear direction.

When assembling the lid of the packaging box of the present invention, the front flap is folded inwardly of the body, and then the first side flaps are folded inwardly of the body. Then, the first supporting portion of the first side flap is inserted into the first insertion opening of the front flap, and the first supporting portion is engaged with the inner surface of the front flap. At this time, the operator can support the front flap with one hand and insert the support portion into the receptacle with the other hand.
Further, after the rear flap is folded inwardly of the body to overlap the outer surface of the first side flap, the second side flap is folded inwardly of the body. Then, the second supporting portion of the second side flap is inserted into the second insertion opening of the front flap, and the second supporting portion is engaged with the inner surface of the front flap. At this time, since the front flap is supported by the first side flap, it is possible to prevent the front flap from sinking inside the body when inserting the second support into the second insertion port. can be done.
Therefore, in the packaging box of the present invention, each flap can be stabilized when assembling the lid portion, so that each flap can be easily connected.
Also, the four flaps can be connected without inserting the front portion of the second side flap into the lower surface side of the front flap.
In addition, since the front flap is formed with the first insertion opening and the second insertion opening, the operator can easily assemble the lid section from the front side of the trunk section. This eliminates the need for the operator to change the orientation of the barrel when assembling the lid.

In the packaging box described above, the body has front and rear end walls, left and right side walls, and at least one inclined wall, and the inclined wall is formed between the adjacent end walls and side walls. It may be formed in a polygonal cylindrical shape.
It is difficult to stabilize the shape of the polygonal tube-shaped body before the lid is assembled. The cover can be easily assembled even if the part has a polygonal tubular shape.

In the packaging box described above, it is preferable that ruled lines extending in the front-rear direction are formed on the first side flap and the second side flap.
In this configuration, when inserting the support portion of the side flap into the insertion opening of the front flap, the side flap is folded in a mountain fold along the crease line, and then flattened out to obtain the side flap. The corner of the flap can be inserted into the receptacle at a shallow insertion angle. This makes it easier to insert the supporting portion of the side flap into the receptacle of the front flap.

In the packaging box of the present invention, it is possible to improve work efficiency when assembling the lid.

It is the perspective view which looked at the packaging box which concerns on this embodiment of this invention from the front upper right. It is the figure which showed the blank sheet of the packaging box which concerns on this embodiment of this invention. Fig. 2 is a perspective view of the packaging box according to the embodiment of the present invention, with the front flap closed, viewed from the front upper right. FIG. 10 is a perspective view of the packaging box according to the present embodiment of the present invention in which the first side flap is closed, viewed from the front upper right. FIG. 10 is a perspective view of the packaging box according to the present embodiment of the present invention in which the second side flap is closed, viewed from the front upper right.

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 limit the configuration or usage of the packaging box.

As shown in FIG. 1, the packaging box 1 of this embodiment includes a body 10 formed in a hexagonal cylindrical shape, a lower lid 20 closing an opening on the lower side of the body 10, and a body and an upper lid portion 30 provided at an opening on the upper side of the device 10 .

As shown in FIG. 2, the packaging box 1 is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out one cardboard sheet along each ruled line. The blank sheet S shown in FIG. 2 is arranged so that the inner side can be seen.
Each ruled line (folded line) of the blank sheet S is a linear groove (press ruled line) formed by pressing the surface of the blank sheet S. As shown in FIG.
In addition, you may form an intermittent notch in a ruled line. By doing so, it becomes easier to fold the blank sheet S at the ruled line.

As shown in FIG. 3 , the trunk portion 10 includes a pair of front and rear end walls 11 and 12 and a pair of left and right side walls 13 and 14 . The front and rear end walls 11 and 12 and the left and right side walls 13 and 14 are formed in a quadrangular shape when viewed from the side.
The body portion 10 also has a right front inclined wall 16 formed between the adjacent front end wall 11 and the right side wall 14 and between the adjacent rear end wall 12 and the left side wall 13 . and a left rear slanted wall 16 formed therein. Hexagonal openings are formed in the upper and lower surfaces of the trunk portion 10 in a plan view.

Two inclined walls 16 , 16 are formed at the front right corner and the rear left corner of the body 10 . The inclined wall 16 is formed in an elongated rectangular shape when viewed from the side. Both inclined walls 16, 16 are of the same shape. Both slanted walls 16,16 are slanted with respect to the end walls 11,12 and side walls 13,14.
In this embodiment, the joint piece 15 is continuously provided on the left edge of the left rear inclined wall 16 (see FIG. 2). The joint piece 15 is joined to the inner surface of the left side wall 13 .

When the blank sheet S (see FIG. 2) is folded along each ruled line and the joining piece 15 is joined to the inner surface of the left side wall 13, the front end wall 11, the rear end wall 12, the left side wall 13, and the right side wall are formed. 14 and two inclined walls 16, 16 form a hexagonal cylindrical body 10 in a plan view.

The lower lid portion 20 includes a pair of left and right inner flaps 21, 21 connected to the lower edges of the left and right side walls 13, 14, and a pair of front and rear inner flaps 21, 21 connected to the lower edges of the front and rear end walls 11, 12. It has outer flaps 22,22.
The lower lid portion 20 has front and rear outer flaps 22, 22 superimposed on the lower surfaces of the left and right inner flaps 21, 21, and the tip edges of the outer flaps 22, 22 are butted against each other to form the trunk portion 10. The lower opening is blocked.

As shown in FIG. 1 , the upper lid portion 30 includes a front flap 31 connected to the front end wall 11 and a rear flap 32 connected to the rear end wall 12 . The upper lid portion 30 also includes a first side flap 33 connected to the left side wall 13 and a second side flap 34 connected to the right side wall 14 .

The front flap 31 is connected to the upper edge of the front end wall 11, as shown in FIG. The front flap 31 covers the front of the upper opening of the body 10 .
The right edge of the front flap 31 is formed along the inner surface of the right side wall 14 and the inner surface of the right front inclined wall 16 . Also, the left edge of the front flap 31 is formed along the inner surface of the left side wall 13 .
When the front flap 31 is inserted into the upper opening of the trunk 10, the right edge of the front flap 31 contacts the inner surface of the right side wall 14 and the inner surface of the right front inclined wall 16, and the front flap 31 is in contact with the inner surface of the left side wall 13 .

A first insertion port 41 and a second insertion port 42 are formed in the front flap 31 at intervals in the left-right direction. The first insertion port 41 and the second insertion port 42 are openings extending in the front-rear direction.
The first insertion port 41 is formed on the left side of the front flap 31 . The right edge of the first insertion port 41 is curved such that the central portion protrudes rightward.
The first insertion port 41 is closed by a lid plate 45 . The left edge of the lid plate 45 is connected to the front flap 31 via a ruled line. Front and rear edges and a right edge of the cover plate 45 are separated from the front flap 31 .

The second insertion port 42 is formed on the right side of the front flap 31 . The left edge of the second insertion port 42 is curved such that the central portion protrudes leftward.
The second insertion port 42 is closed with a lid plate 45 . The left edge of the lid plate 45 is connected to the front flap 31 via a ruled line. Front and rear edges and a left edge of the cover plate 45 are separated from the front flap 31 .

The rear flap 32 is connected to the upper edge of the rear end wall 12 as shown in FIG. The rear flap 32 covers the rear of the upper opening of the torso 10 . In this embodiment, the leading edge of the front flap 31 and the leading edge of the rear flap 32 are spaced apart.

The left portion of the rear flap 32 overlaps the top surface of the rear portion of the first side flap 33 . The rear part of the second side flap 34 is superimposed on the upper surface of the right part of the rear flap 32 . Thus, the rear flap 32 vertically crosses the first side flap 33 and the second side flap 34 .

The first side flap 33 is connected to the upper edge of the left side wall 13 . The front portion of the first side flap 33 overlaps the top surface of the left portion of the front flap 31 . The left portion of the rear flap 32 is superimposed on the top surface of the rear portion of the first side flap 33 . Thus, the first side flap 33 intersects the front flap 31 and the rear flap 32 vertically.

A ruled line L1 extending in the front-rear direction is formed on the lower surface of the first side flap 33 (see FIG. 2). The ruled line L1 is formed across the front and rear side edges of the first side flap 33 . The ruled line L1 is formed parallel to the proximal edge of the first side flap 33 . Further, the ruled line L1 is arranged slightly toward the tip side of the central portion of the first side flap 33 in the left-right direction.
In addition, in each drawing of the present embodiment, the configuration of the ruled line L1 is shown in an easy-to-understand manner by showing the ruled line L1 on the outer surface side as well.

A first support portion 51 is formed at the front portion of the tip portion of the first side flap 33 . The first support portion 51 is formed on the right side of the ruled line L1 and protrudes rightward. The front edge of the first support portion 51 is the front edge of the first side flap 33, and the rear edge of the first support portion 51 is separated from the first side flap 33 by a slit 51a.
The first support portion 51 is inserted into the first insertion opening 41 of the front flap 31 from above (see FIG. 4) and is locked to the bottom surface of the front flap 31 .

At the center of the tip edge of the first side flap 33, a semicircular recessed finger hook 35 is formed. The finger hook 35 is arranged between the leading edge of the front flap 31 and the leading edge of the rear flap 32 .

The second side flap 34 is connected to the upper edge of the right side wall 14 . The front portion of the second side flap 34 overlaps the upper surface of the right portion of the front flap 31 . Also, the rear portion of the second side flap 34 overlaps the upper surface of the right portion of the rear flap 32 .

The second side flap 34 is bilaterally symmetrical to the first side flap 33 . A ruled line L1 is also formed on the lower surface of the second side flap 34 . A finger hook portion 35 is also formed on the tip edge portion of the second side flap 34 .
The second support portion 52 formed at the front portion of the tip portion of the second side flap 34 is formed to the left of the ruled line L1 and protrudes leftward. The front edge of the second support 52 is the front edge of the second side flap 34, and the rear edge of the second support 52 is separated from the second side flap 34 by a slit 52a.
The second support portion 52 is inserted into the second insertion opening 42 of the front flap 31 from above and locked to the bottom surface of the front flap 31 .

Next, a procedure for assembling the upper cover portion 30 of the packaging box 1 will be described.
First, as shown in FIG. 3, the front flap 31 is folded toward the inside of the body 10 with respect to the front end wall 11 .
Subsequently, as shown in FIG. 4, the first side flap 33 is folded toward the inside of the body section 10 with respect to the left side wall 13, and the first side flap 33 is folded in a mountain fold along the ruled line L1. In this way, the first support portion 51 of the first side flap 33 is arranged to the left of the first receptacle 41 of the front flap 31 .

When the mountain-folded first side flap 33 is flattened, as shown in FIG. 5, the first support portion 51 is inserted into the first insertion opening 41 from the left. As a result, the first support portion 51 enters the lower surface side of the front flap 31 , and the first support portion 51 is locked to the lower surface of the front flap 31 . Also, the front portion of the first side flap 33 overlaps the top surface of the left portion of the front flap 31 .

Subsequently, the rear flap 32 is folded inwardly of the body 10 with respect to the rear end wall 12 . As a result, the left portion of the rear flap 32 overlaps the upper surface of the rear portion of the first side flap 33 .
Further, the second side flap 34 is folded toward the inside of the body portion 10 with respect to the right side wall 14, and the second side flap 34 is folded in a mountain fold along the ruled line L1. In this way, the second support portion 52 of the second side flap 34 is arranged on the right side of the second receptacle 42 of the front flap 31 .

When the mountain-folded second side flap 34 is flattened, as shown in FIG. 1, the second support portion 52 of the second side flap 34 is inserted into the second insertion opening 42 from the right side. . As a result, the second support portion 52 enters the lower surface side of the front flap 31 , and the second support portion 52 is locked to the lower surface of the front flap 31 . The front portion of the second side flap 34 overlaps the top surface of the right portion of the rear flap 32 , and the rear portion of the second side flap 34 overlaps the top surface of the right portion of the front flap 31 .

In this manner, the front flap 31, the first side flap 33, the rear flap 32, and the second side flap 34 are sequentially stacked and connected to form the upper lid portion 30. As shown in FIG.

When opening the upper lid portion 30, the operator puts his or her fingers on the finger hook portions 35, 35 of the first side flap 33 and the second side flap 34 to open the first side flap 33 and the second side flap. Flap 34 is pulled up. As a result, the first support portion 51 and the second support portion 52 of the first side flap 33 and the second side flap 34 are pulled out from the first insertion opening 41 and the second insertion opening 42 of the front flap 31. be In this manner, the front flap 31, the first side flap 33, the rear flap 32 and the second side flap 34 can be disconnected to open the top cover 30. FIG.
In the packaging box 1 of this embodiment, since the finger hooks 35, 35 of the first side flap 33 and the second side flap 34 are arranged between the front flap 31 and the rear flap 32, the first side It is easy to pull up the side flap 33 and the second side flap 34 .

In the packaging box 1 as described above, when inserting the first support portion 51 of the first side flap 33 into the first insertion opening 41 of the front flap 31 as shown in FIG. While supporting the partial flap 31 with one hand, the first support portion 51 can be inserted into the first insertion port 41 with the other hand.
Further, as shown in FIG. 5, when the second support portion 52 of the second side flap 34 is inserted into the second insertion opening 42 of the front flap 31, the front flap 31 is supported by the first side flap 33. Therefore, it is possible to prevent the front flap 31 from sinking inside the body 10 .

Thus, in the packaging box 1 of this embodiment, as shown in FIG. can be stabilized and connected easily.
Further, even if the front portion of the second side flap 34 is not inserted into the lower surface side of the front flap 31, the four front flaps 31, the rear flap 32, the first side flap 33 and the second side flap 34 can be assembled. can be concatenated.
Further, since the front flap 31 is formed with the first insertion opening 41 and the second insertion opening 42 , the operator can easily assemble the upper lid section 30 from the front side of the trunk section 10 . This eliminates the need for the worker to change the orientation of the body portion 10 when assembling the upper lid portion 30 .
Therefore, in the packaging box 1 of the present embodiment, it is possible to improve the working efficiency when assembling the upper lid portion 30 .

As shown in FIG. 3, it is difficult to stabilize the shape of the polygonal cylinder body 10 before the upper lid 30 is assembled. In the packaging box 1 of the present embodiment, the front flap 31, the rear flap 32, the first side flap 33, and the second side flap 34 can be stabilized when assembling the upper lid section 30, so that the body section 10 The upper lid part 30 can be easily assembled even if it has a polygonal tubular shape.

In the packaging box 1 of the present embodiment, as shown in FIG. 4, when inserting the first support portion 51 of the first side flap 33 into the first insertion opening 41 of the front flap 31, the first side flap Fold 33 into a mountain fold. After that, by flattening the first side flap 33, the first support portion 51 of the first side flap 33 can be inserted into the first insertion port 41 at a shallow insertion angle. This makes it easier to insert the first support portion 51 of the first side flap 33 into the first insertion opening 41 of the front flap 31 .
Similarly, as shown in FIG. 5, when inserting the second support portion 52 of the second side flap 34 into the second insertion opening 42 of the front flap 31, the second side flap 34 is folded into a mountain fold. Bending makes it easier to insert the second support portion 52 into the second insertion port 42 .

In the packaging box 1 of the present embodiment, as shown in FIG. 3, the inner surfaces of the side walls 13 and 14 and the inner surface of the inclined wall 16 are supported by the side edges of the front flap 31, so that the shape of the body 10 is can be maintained.

In the packaging box 1 of this embodiment, as shown in FIG. 1, in addition to the outer surfaces of the front and rear end walls 11 and 12 and the outer surfaces of the left and right side walls 13 and 14, the outer surfaces of both inclined walls 16 and 16 also have product information printed on them. can be printed. As a result, when the packaging boxes 1 are arranged on the sales floor, the customer can clearly recognize the product information from the front, back, left, right, and oblique directions. Therefore, in the packaging box 1 of the present embodiment, the products housed therein can be effectively appealed.

In the packaging box 1 of this embodiment, inclined walls 16 are provided at the corners of the body portion 10 . In other words, the packaging box 1 of this embodiment has a shape in which the corners of a rectangular parallelepiped box are inclined. In such a packaging box 1, the area of the sheet can be reduced compared to a rectangular parallelepiped box having the same length in the front-rear direction and the left-right direction.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be appropriately modified without departing from the scope of the invention.
In this embodiment, the present invention is applied to the upper lid portion 30 of the packaging box 1 shown in FIG. 1, but the present invention may be applied to the lower lid portion of the packaging box 1.

The shape of the first insertion port 41 and the second insertion port 42 of the front flap 31 and the shape of the first support portion 51 of the first side flap 33 and the second support portion 52 of the second side flap 34 are limited. It will not be done.

In the packaging box 1 of the present embodiment, the tip edge of the front flap 31 and the tip edge of the rear flap 32 are arranged with a gap between them. The leading edge may be abutted.

In the packaging box of the present invention, the width and height of the end walls, side walls and inclined walls are not limited. Also, the number of inclined walls is not limited. Also, the angle of inclination of the inclined walls with respect to the end walls and side walls is not limited.
For example, in the packaging box 1 of the present embodiment, both end walls 11 and 12, both side walls 13 and 14, and each inclined wall 16 may be formed to have the same width, and the trunk portion 10 may be formed in a regular hexagon.

In the packaging box 1 of the present embodiment, the trunk portion 10 is formed in a hexagonal cylindrical shape, but the number of corners of the trunk portion 10 is not limited. For example, the body may be formed in a polygonal tubular shape such as a square tubular shape, a pentagonal tubular shape, an octagonal tubular shape, or the like.

Although the packaging box 1 of the present embodiment is made of cardboard, the packaging box of the present invention can be formed from various known paperboards.

1 Packaging box 10 Body 11 Front end wall 12 Rear end wall 13 Left side wall 14 Right side wall 15 Joint piece 16 Inclined wall 20 Lower lid 21 Inner flap 22 Outer flap 30 Upper lid 31 Front flap 32 Rear Flap 33 First side flap 34 Second side flap 35 Finger hook 41 First insertion port 42 Second insertion port 45 Cover plate 51 First support part 52 Second support part S Blank sheet

Claims (3)

a tubular body having front and rear end walls and left and right side walls;
and a lid provided at an opening on the upper side or the lower side of the body,
The lid is
a front flap connected to the front end wall;
a rear flap connected to the rear end wall;
A first side flap and a second side flap connected to the left and right side walls,
The front flap is formed with a first insertion port and a second insertion port spaced apart in the left-right direction,
a front portion of the first side flap overlaps an outer surface of the front flap;
a side of the rear flap overlaps an outer surface of the first side flap;
a rear portion of the second side flap overlaps an outer surface of the rear flap;
a front portion of the second side flap overlaps an outer surface of the front flap;
the first supporting portion formed on the first side flap is inserted into the first insertion opening of the front flap and locked to the inner surface of the front flap;
a second support formed on the second side flap is inserted into the second insertion opening of the front flap and locked to the inner surface of the front flap ;
The packaging box , wherein the width of the first support portion in the front-rear direction is formed larger than the width of the second support portion in the front-rear direction. The packaging box according to claim 1,
The body has front and rear end walls, left and right side walls, and at least one inclined wall,
The packaging box, wherein the inclined wall is formed between the adjacent end wall and side wall. The packaging box according to claim 1 or claim 2,
A packaging box, wherein ruled lines extending in the front-rear direction are formed on the first side flap and the second side flap.

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