JP7444092B2 - packaging box - Google Patents

Description

The present invention relates to packaging boxes.

As a cardboard packaging box, the front and rear handles are connected to the tips of the front and rear top flaps that are connected to the upper edges of the front and rear walls, and the handles are connected to the top edges of the left and right walls. There is one in which a connecting flap is connected to the side edges of both handles (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2014-118207

In the conventional packaging boxes mentioned above, the handles are fixed in an upright position on the top plate, so it is necessary to secure a space at the height of the handles during storage, and it is not possible to stack other boxes on the top plate. The problem is that it can't be done.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a packaging box that can provide a handle on the top plate with a simple structure and can accommodate the handle and flatten the top surface of the top plate. .

In order to solve the above problems, the present invention provides a packaging box that includes a cylindrical body having front and rear end walls and left and right side walls, a top plate provided at an upper opening of the body, and the body. and a bottom plate provided at the lower opening of the section. The top plate includes two top flaps connected to upper edges of the front and rear end walls, respectively. One of the top flaps covers a region on one side of the left and right sides of the upper opening, and the other top flap covers a region on the other side of the left and right sides of the upper opening. The top flap is formed with an opening and a handle housed in the opening, and a base end of the handle is connected to an edge of the opening via a fold line.

In the packaging box of the present invention, the upper surface of the top plate becomes flat when the handle is accommodated in the opening, so the storage space can be reduced and other boxes can be stacked on the top plate.
In the packaging box of the present invention, the handle can be easily raised on the top plate by pulling up the handle within the opening.
Further, in the packaging box of the present invention, after the handle is raised, the handle is folded down and accommodated in the opening, thereby making it possible to return the top surface of the top plate to a flat surface.

In the packaging box described above, the base end of the top flap extends along the upper edge of the end wall, and extends downward to the inner edge in the left-right direction at the tip side of the top flap. Install extending side plates. Then, the leading edge of the proximal end of one of the top flaps is inserted into the recess formed in the leading edge of the side plate of the other top flap.

With this configuration, when the handle is grasped by hand and the packaging box is lifted, the base end of one top flap catches the recess in the side plate of the other top flap, preventing the top flap from opening. I can do it.

In the packaging box described above, the base end of the top flap extends along the upper edge of the end wall, and the inner edge in the left-right direction at the tip side of the top flap is directed downward. Install side plates that extend side by side. Then, a base end portion of the handle is connected to an upper edge portion of the side plate via the fold line. With this configuration, the strength of the handle against upward pulling force can be increased.

The body may be formed into a polygonal cylindrical shape such as a pentagon, a hexagon, or an octagon by providing a plurality of side walls in a row in the front-rear direction on at least one of the left and right sides of the body. .
In the packaging box of the present invention, two top flaps are connected to each of the front and rear end walls. This makes it easy to form the edges of the top flap in accordance with the shapes of the left and right sides of the body, so there is a high degree of freedom in the shape of the left and right sides of the body.

In the above-mentioned packaging box, an inner flap that is overlapped with a lower surface of the top flap is continuously provided on the upper edge of the side wall. It is preferable that a connecting hole is formed in the inner flap, and that an insertion piece connected to the top flap is inserted into the connecting hole.

By fixing the edges of the top flap to the side walls in this manner, the shape of the sides of the trunk can be maintained by the top plate. This makes it possible to stabilize the shape of the body even if the body has a cylindrical shape such as a hexagon or an octagon and the shape of the side part is complicated.

In the packaging box of the present invention, the handle can be raised on the top plate with a simple configuration. Furthermore, in the packaging box of the present invention, by storing the handle in the opening of the top plate and making the top surface of the top plate flat, it is possible to reduce the space for storage, and also to allow other box bodies to be placed on the top plate. Can be stacked.

FIG. 1 is a perspective view of a packaging box according to an embodiment of the present invention, viewed from the front upper left. It is a figure showing a blank sheet of a packaging box concerning an embodiment of the present invention. FIG. 2 is a perspective view showing a packaging box according to an embodiment of the present invention, with a handle raised up on the top plate. It is a perspective view showing a state before closing a top flap in a packaging box concerning an embodiment of the present invention. FIG. 4 is a sectional view taken along the line VV in FIG. 3 showing a packaging box according to an embodiment of the present invention. FIG. 1 is a front view showing a packaging box according to an embodiment of the present invention. FIG. 2 is a rear view showing a packaging box according to an embodiment of the present invention. FIG. 2 is a right side view showing a packaging box according to an embodiment of the present invention. It is a left side view showing a packaging box concerning an embodiment of the present invention. FIG. 1 is a plan view showing a packaging box according to an embodiment of the present invention. It is a bottom view showing a packaging box concerning an embodiment of the present 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 explaining the packaging box of this embodiment, and do not limit the configuration or use condition of the packaging box.

As shown in FIG. 1, the packaging box 1 of this embodiment includes a cylindrical body 10, a top plate 20 provided at the upper opening of the body 10, and a top plate 20 provided at the lower opening of the body 10. A bottom plate 30 is provided.

As shown in FIG. 2, the packaging box 1 of this embodiment is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out a cardboard sheet along each fold line. The blank sheet S shown in FIG. 2 is arranged so that the inner surface side is visible.
The fold line of the blank sheet S is a ruled line (pressed line) formed by pressing the surface of the blank sheet S into a linear shape. Note that intermittent cuts may be formed in the ruled lines. This makes it easier to fold the blank sheet S along the fold line.
Alternatively, the folded line may be formed by intermittent half-cut slits that cut only the surface of the sheet or slits that penetrate through the sheet to form a linear shape.

As shown in FIG. 1, the body portion 10 includes a pair of front and rear walls 11 and a rear wall 12, a pair of left and right front walls 13, 15, and a pair of left and right rear walls 14, 16. . In the following description, the left and right front walls 13 and 15 will be referred to as the left front wall 13 and the right front wall 15, respectively, and the left and right rear walls 14 and 16 will be referred to as the left rear wall 14 and the right rear wall 16, respectively.
The front end wall 11, the rear end wall 12, the left front wall 13, the left rear wall 14, the right front wall 15, and the right rear wall 16 are formed in a rectangular shape (see FIG. 2).

A left front wall 13 is connected to the left edge of the front end wall 11 via a broken line (see FIG. 6), and a left rear wall 14 is connected to the rear edge of the left front wall 13 via a broken line. (See Figure 9).
Further, a rear end wall 12 is connected to the rear edge of the left rear wall 14 via a polygonal line (see FIG. 7), and a right rear wall 16 is connected to the right edge of the rear end wall 12 via a polygonal line. are installed in succession.
Further, a right front wall 15 is connected to the right edge of the front end wall 11 via a fold line (see FIG. 6), and a band-shaped joint piece 17 is connected to the rear edge of the right front wall 15 via a fold line. It is set up. The joining piece 17 is joined to the inner surface of the right rear wall 16.

On the left side of the trunk 10, a left front wall 13 and a left rear wall 14 are connected in the front-rear direction (see FIG. 9), and on the right side of the trunk 10, a right front wall 15 and a right rear wall 16 are provided. They are arranged in series in the front and rear direction (see Fig. 8).
The left front wall 13 and the right front wall 15 are inclined to open outward relative to the front end wall 11, and the left rear wall 14 and the right rear wall 16 are inclined outward relative to the rear end wall 12. (See Figure 10).
In the trunk 10 of this embodiment, the upper edges of the front end wall 11, the rear end wall 12, the left front wall 13, the left rear wall 14, the right front wall 15, and the right rear wall 16 are formed to have the same length. ing. Therefore, the body 10 of this embodiment is formed into a regular hexagonal cylindrical shape in plan view (see FIG. 10).

The bottom plate 30 closes the lower opening of the body 10. As shown in FIG. 11, the bottom plate 30 has six panels connected to the lower edges of the front end wall 11, the rear end wall 12, the left front wall 13, the left rear wall 14, the right front wall 15, and the right rear wall 16. It is formed by overlapping the bottom flaps 31.

As shown in FIG. 10, the top plate 20 includes a first top flap 21A connected to the upper edge of the front end wall 11, a second top flap 21B connected to the upper edge of the rear end wall 12, It is equipped with The top plate 20 also includes four inner flaps 25 that are connected to the upper edges of the front left wall 13, the rear left wall 14, the front right wall 15, and the rear right wall 16 (see FIG. 4).
By overlapping the first top flap 21A and the second top flap 21B on the top surface of the four inner flaps 25, the upper opening of the body 10 is closed.

As shown in FIG. 4, a connecting hole 26 is formed at the proximal edge of the inner flap 25 connected to the left rear wall 14, and a connecting hole 26 is formed at the proximal edge of the inner flap 25 connected to the right front wall 15. A connecting hole 26 is formed in the edge.

The first top flap 21A extends rearward from the upper edge of the front end wall 11, as shown in FIG. The base end edge (front end edge) of the first top flap 21A is connected to the upper edge of the front end wall 11 via a fold line.
The first top flap 21A covers the left half region of the upper opening of the body 10, as shown in FIG. The left edge (the outer edge in the left-right direction) of the first top flap 21A is formed along the upper edges of the left front wall 13 and the left rear wall 14, and is convex outward. It's bent.

An insertion piece 27 extending downward is connected to the front of the left edge of the first top flap 21A via a fold line. By inserting this insertion piece 27 into the connection hole 26 of the inner flap 25, the first top flap 21A is connected to the inner flap 25 and the left rear wall 14.

The base end portion 22 (front end portion) of the first top flap 21A extends in a band shape in the left-right direction along the upper edge of the front end wall 11. The base end 22 of the first top flap 21A is formed to have the same width as the upper edge of the front end wall 11.

As shown in FIG. 1, the right edge (inner edge in the left-right direction) of the region on the distal side (rear side) of the base end 22 of the first top flap 21A is located on the right side of the base end 22. It is located to the left of the edge.
A side plate 28 extending downward is connected to the right edge of the region of the first top flap 21A on the distal side of the base end 22 (see FIG. 4).

As shown in FIG. 5, the distal end edge (rear edge) of the side plate 28 is disposed on the proximal side (front side) of the distal end edge (rear edge) of the first top flap 21A.
A recess 29 recessed toward the base end (front side) is formed at the upper end of the distal edge (rear edge) of the side plate 28 . The recess 29 is a portion into which a tip edge (front edge) of a base end 22 of a second top flap 21B, which will be described later, is inserted. The width of the recess 29 in the vertical direction is approximately the same as the thickness of the second top flap 21B.

As shown in FIG. 1, an opening 40 and a handle 50 are formed in the first top flap 21A. As shown in FIG. 3, the opening 40 is formed in the center of the first top flap 21A in the front-rear direction. The handle 50 is housed within the opening 40.

The opening 40 has two front and rear first linear parts 41, 41 extending from the right edge (inner edge in the left-right direction) to the left (outer in the left-right direction) of the first top flap 21A. It is formed. The upper edge of the side plate 28 is arranged at the right edge of both the first linear parts 41, 41.
Further, a second linear portion 42 is formed in the opening 40 and extends in the front-rear direction from the left end of one first linear portion 41 to the left end of the other first linear portion 41 .
In this way, the opening 40 is formed in a region adjacent to the upper edge of the side plate 28, and the edge of the opening 40 is recessed toward the left from the right edge of the first top flap 21A. It is bent into a U shape (see Figure 10).

The handle 50 is a part that stands up on the top surface of the top plate 20 and is gripped by hand when carrying the packaging box 1. In the state of the blank sheet S shown in FIG. 2, the handle 50 is fitted into the opening 40.

The handle 50 is formed with two first linear plates 51, 51, front and rear, extending leftward from the right edge of the first top flap 21A. Both first linear plates 51, 51 are fitted into both first linear parts 41, 41 of opening 40, respectively. The right edges of both first linear plates 51, 51 are connected to the upper edge of the side plate 28 via a fold line. In this way, the right end portions of both the first linear portions 41, 41 of the handle 50 are connected to the right edge portion of the opening 40 via the fold line.
Furthermore, a second linear plate 52 is formed on the handle 50 and extends in the front-rear direction from the left end of one first linear plate 51 to the left end of the other first linear plate 51. The second straight plate 52 is fitted into the second straight portion 42 of the opening 40 .
Like the opening 40, the handle 50 is bent into a U shape so as to be depressed toward the left from the right edge of the first top flap 21A (see FIG. 10).

Both proximal edges of the handle 50 are connected to the upper edge of the side plate 28 via a fold line, and the other edges are connected to the edge of the opening 40 via a slit.
When carrying the packaging box 1, the handle 50 is bent upward relative to the side plate 28 along the fold line, as shown in FIG. Thereby, the handle 50 is raised against the upper surface of the first top flap 21A.

As shown in FIG. 1, the second top flap 21B and the first top flap 21A are formed point-symmetrically with respect to the center of the upper opening of the body 10.
The second top flap 21B extends forward from the upper edge of the rear end wall 12. The second top flap 21B covers the right half region of the upper opening of the body 10, as shown in FIG. The right edge of the second top flap 21B is formed along the upper edges of the right front wall 15 and the right rear wall 16.
As shown in FIG. 1, an insertion piece 27 connected to the rear part of the right edge of the second top flap 21B is inserted into a connection hole 26 (see FIG. 4) formed in the inner flap 25.

The base end 22 of the second top flap 21B is formed to have the same width as the upper edge of the rear end wall 12. Further, as shown in FIG. 4, a side plate 28 is continuously provided in the left edge of the second top flap 21B in a region on the distal side of the proximal end 22. A recess 29 is formed. The leading end edge of the base end 22 of the first top flap 21A is inserted into the recess 29 of the side plate 28 of the second top flap 21B.

As shown in FIG. 1, the second top flap 21B is formed with an opening 40 and a handle 50, similarly to the first top flap 21A. As shown in FIG. 3, when the handle 50 is raised on the upper surface of the first top flap 21A and the handle 50 is raised on the upper surface of the second top flap 21B, the left and right handles 50, 50 are placed in the center of the top plate 20. are superimposed.

In the packaging box 1 as described above, as shown in FIG. Other boxes can be stacked on top of each other.
Then, as shown in FIG. 3, by pulling up the handle 50 in the opening 40, the handle 50 can be easily raised on the top plate 20.
Further, after the handle 50 is set up on the top plate 20, the handle 50 is folded down and accommodated in the opening 40, so that the top surface of the top plate 20 can be returned to a flat state.

In the packaging box 1 of this embodiment, as shown in FIG. The first top flap 21A can be prevented from opening by being caught by the recess 29 of the side plate 28. Similarly, the recess 29 of the side plate 28 of the second top flap 21B is caught by the tip edge of the proximal end 22 of the first top flap 21A shown in FIG. 4, thereby preventing the second top flap 21B from opening. I can do it.

In the packaging box 1 of this embodiment, as shown in FIG. 3, the base end of the handle 50 is connected to the upper edge of the side plate 28. In this configuration, when the handle 50 is raised on the upper surface of the top plate 20, the handle 50 and the side plate 28 are connected linearly in the vertical direction, so that the strength of the handle 50 against upward tensile force is reduced. can be increased.

In the packaging box 1 of this embodiment, as shown in FIG. 1, the front end wall 11 is provided with a first top flap 21A, and the rear end wall 12 is provided with a second top flap 21B. This makes it easy to form the edges of the first top flap 21A and the second top flap 21B in accordance with the shape of the left and right sides of the body 10, thereby increasing the degree of freedom in the shape of the left and right sides of the body 10. expensive.

In the packaging box 1 of this embodiment, by inserting the insertion piece 27 connected to the first top flap 21A and the second top flap 21B into the connection hole 26 of the inner flap 25 shown in FIG. The shape of the side portions of the trunk 10 can be maintained. Thereby, even if the shape of the side portion of the body 10 is complicated, the shape of the body 10 can be stabilized.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit thereof.
In the packaging box 1 of this embodiment, as shown in FIG. 1, the handles 50 are provided on both the first top flap 21A and the second top flap 21B. The handle 50 may be provided only on one side.

In the first top flap 21A and the second top flap 21B of the packaging box 1 of this embodiment, the base end of the handle 50 is connected to the upper edge of the side plate 28, but the side plate 28 is not provided and the opening The proximal end of the handle 50 may be connected to the edge of the portion 40.

In the packaging box 1 of this embodiment, the body 10 is formed in a hexagonal cylindrical shape, but the shapes of the left and right sides of the body 10 are not limited.
For example, the body 10 can be formed into an octagonal cylinder shape by connecting three side walls in the front and back direction on the left and right sides of the body 10, or By providing one side wall for each side wall, the body portion 10 can be formed into a rectangular cylindrical shape.
In the packaging box 1 of this embodiment, the edges of the first top flap 21A and the second top flap 21B can be formed to match the shapes of the left and right sides of the trunk 10.

In the packaging box 1 of this embodiment, as shown in FIG. 10, the top plate 20 is provided with a plurality of inner flaps 25, but the inner flaps 25 may not be provided.
In the packaging box 1 of this embodiment, as shown in FIG. 11, the bottom plate 30 is composed of a plurality of bottom flaps 31, but the structure of the bottom plate 30 is not limited, and for example, one or two flaps can be used. It may be composed of a flat plate.

Although the packaging box 1 of this embodiment shown in FIG. 1 is made of cardboard, the packaging box 1 can be made of various known paperboards.

1 Packaging box 10 Body 11 Front end wall 12 Rear end wall 13 Left front wall 14 Left rear wall 15 Right front wall 16 Right rear wall 17 Joint piece 20 Top plate 21A First top flap 21B Second top flap 22 Base end 25 Inner flap 26 Connection hole 27 Insert piece 28 Side plate 29 Recess 30 Bottom plate 31 Bottom flap 40 Opening 41 First straight part 42 Second straight part 50 Handle 51 First straight plate 52 Second straight plate S Blank sheet

Claims (5)

a cylindrical body having front and rear end walls and left and right side walls;
a top plate provided at the upper opening of the body;
a bottom plate provided in the lower opening of the body,
The top plate is
comprising two top flaps connected to the upper edges of the front and rear end walls, respectively;
One of the top flaps covers an area on one left and right side of the upper opening, and
The other top flap covers a region on the other left and right side of the upper opening,
the top flap is formed with an opening and a handle received within the opening;
A packaging box characterized in that a base end of the handle is connected to an edge of the opening via a fold line. The packaging box according to claim 1,
A proximal end of the top flap extends along an upper edge of the end wall, and
A side plate extending downward is connected to the inner edge in the left-right direction at the tip side of the top flap,
A packaging box characterized in that a leading edge of a proximal end of one of the top flaps is inserted into a recess formed in a leading edge of the side plate of the other top flap. The packaging box according to claim 1,
A proximal end of the top flap extends along an upper edge of the end wall, and
A side plate extending downward is connected to the inner edge in the left-right direction at the tip side of the top flap,
A packaging box characterized in that a base end portion of the handle is connected to an upper edge portion of the side plate via the fold line. The packaging box according to any one of claims 1 to 3,
A packaging box characterized in that a plurality of the side walls are arranged in a row in the front-rear direction on at least one of the left and right side parts of the body. The packaging box according to any one of claims 1 to 4,
An inner flap overlapped with the lower surface of the top flap is connected to the upper edge of the side wall,
A connecting hole is formed in the inner flap,
A packaging box characterized in that an insertion piece connected to the top flap is inserted into the connection hole.

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