JP6684036B2 - Packaging boxes and blank sheets - Google Patents

Description

  The present invention relates to a packaging box having a polygonal body and a blank sheet for forming the packaging box.

  Some packaging boxes include an octagonal body and upper and lower lids that close upper and lower openings of the body (for example, see Patent Document 1 and Patent Document 2). The body of such a packaging box includes a pair of front and rear end walls, a pair of left and right side walls, and four inclined walls formed between adjacent end walls and side walls.

  In the octagonal packaging box as described above, the product information can be printed not only on the outer surfaces of the end wall and the side wall but also on the outer surface of each inclined wall, so that the customer can visually recognize the product information from multiple directions. . Further, by making the body part octagonal, the compressive strength can be maintained even if the material area is reduced.

Japanese Patent No. 5021689 JP, 2014-005072, A

The lid portion of the conventional packaging box described above includes a pair of front and rear inner flaps that are continuously provided to the front and rear end walls, and a pair of left and right outer flaps that are continuously provided to the left and right side walls. The outer flap is overlaid.
In the conventional packaging box described above, the width of the inner flap in the left-right direction is smaller than the width of the opening of the body in the left-right direction. Further, the outer flap, which is superposed on the outer surface of the inner flap, is arranged outside the open end of the body.
As described above, in the conventional packaging box described above, the inner flap and the outer flap are not in contact with the inner surface of the body, and the inner surface of the body is not supported. However, there is a problem that it is difficult to accurately form an octagon and maintain the shape.

  Therefore, in the method of assembling the packaging box described in Patent Document 1, when assembling the body, a mandrel (form) is arranged in the body to form the body in an octagonal shape. Further, in the packaging method described in Patent Document 2, the body is formed into an octagon while filling the content, and the shape of the body is maintained by the content.

  The present invention solves the above-mentioned problems and provides a packaging box and a blank sheet that can maintain the shape by forming the body into a polygon as intended at the time of designing even when the body is empty. Is an issue.

In order to solve the above-mentioned problems, a first invention is a packaging box, which comprises a body formed in a polygonal rectangular tube shape, and a lid that closes an opening of the body. ing. The barrel, said pair of end walls before and width is formed in the same in the circumferential direction of the body portion, a pair of left and right side walls of the width in the circumferential direction are formed in the same of the barrel, even inclined wall And a joining flap that is continuously provided to the inclined wall that is continuously provided to one of the end walls . A pair of the inclined walls having the same width in the circumferential direction of the body is arranged at diagonal positions. The inclined wall is formed between the end wall and the side wall adjacent to each other, and the joining flap is joined to the inner surface of the side wall. The lid portion is continuously provided to the front and rear end walls, and is continuously provided to a pair of front and rear inner flaps that enter the opening of the body portion, and is continuously provided to the left and right side walls, and is overlapped on the outer surface of the inner flap. And a pair of left and right outer flaps. Both side edge portions of the inner flap are formed along inner surfaces of the both side walls, and at least one side edge portion of the inner flap is formed along an inner surface of the inclined wall. It touches the inner surface of the wall. By supporting the inner surfaces of the both side walls and the inner surface of the inclined wall by the both side edges of the inner flap, the shape of the body portion is maintained. The outer surface of at least one of the inclined walls is a surface on which information is visible. The lid can close the opening below the body.
In order to solve the said subject, 2nd invention is a blank sheet for forming the said packaging box.

In the packaging box of the present invention, when the inner flap is closed with respect to the body, the side edges of the inner flap come into contact with the inner surface of the side wall and the inner surface of the inclined wall, so that the inner surface of the body is supported by the inner flap. As a result, even when the body is empty, the body can be formed in a polygonal shape as intended at the time of designing and the shape can be maintained.
Further, since the packaging box of the present invention has a lid formed by a pair of inner flaps and a pair of outer flaps, as in the case of the A-type cardboard box, it can be used as a general A-type cardboard box box making machine. Can be used to manufacture the packaging box of the present invention.
Further, in the packaging box of the present invention, by printing the product information on the outer surface of the inclined wall, when the packaging boxes are lined up at the sales floor, the customer can clearly see the product information even from an oblique direction. Therefore, in the packaging box of the present invention, the products housed inside can be effectively appealed.

  In the packaging box of the present invention, at least two diagonally opposite diagonal walls can be formed. That is, in the present invention, by forming the body portion into a hexagonal or octagonal rectangular tube shape, the body portion can be folded when the packaging box is transported.

When the body is formed in an octagonal rectangular tube, the body has a pair of front and rear end walls, a pair of left and right side walls, and four inclined walls. . In this case, the both side edges of the inner flap are formed along the inner surfaces of the both side walls and the inner surfaces of the two inclined walls adjacent to the end walls.
In this configuration, since the inner surface of the octagonal body is supported by the inner flap, the body can be accurately formed into an octagon and the shape can be maintained even when the body is empty.

When the body is formed in a hexagonal rectangular tube shape, the body has a pair of front and rear end walls, a pair of left and right side walls, and two inclined walls, Both inclined walls are arranged in diagonal positions. In this case, both side edge portions of the inner flap are formed along the inner surfaces of the both side walls, and part of the side edge portions of the inner flap are formed along the inner surface of the inclined wall.
In this configuration, since the inner surface of the hexagonal body is supported by the inner flap, the body can be accurately formed into a hexagon and the shape can be maintained even when the body is empty.

  When the body is hexagonal, two corners of the four corners of the body can be formed at an angle of 90 degrees. As a result, the shape of the packaging box can be stabilized, so that the packaging box can be prevented from losing its shape and the lid can be easily closed with tape. Moreover, since the corners of the packaging box can be easily reached, the packaging box can be easily transported.

  In the packaging box described above, when the inclination angle of the inclined wall with respect to the end wall and the side wall is formed to be 45 degrees, it becomes easy to bend each inclined wall with respect to the end wall and the side wall, and the shape of the body portion is changed. Can be stabilized.

  In the packaging box of the present invention, since the inner surface of the body is supported by the inner flap, the body can be formed in a polygonal shape as intended at the time of design and the shape can be maintained even when the body is empty. .

It is the figure which showed the packaging box which concerns on 1st embodiment of this invention, and is the perspective view seen from the front upper left. It is the figure which showed the packaging box which concerns on 1st embodiment of this invention, and is the perspective view seen from back left lower part. It is the figure which showed the blank sheet of the packaging box which concerns on 1st embodiment of this invention. It is the figure which showed the packaging box which concerns on 1st embodiment of this invention, (a) is a perspective view of the state which opened the inner flap and the outer flap, (b) is a perspective view of the state which closed the inner flap. It is a perspective view of the state where the packaging boxes concerning a first embodiment of the present invention were put in order. It is the figure which showed the packaging box which concerns on 2nd embodiment of this invention, and is the perspective view seen from the front upper left. It is the figure which showed the packaging box which concerns on 2nd embodiment of this invention, and is the perspective view seen from back left lower part. It is the figure which showed the blank sheet of the packaging box which concerns on 2nd embodiment of this invention. It is the figure which showed the packaging box which concerns on 2nd embodiment of this invention, (a) is a perspective view of the state which opened the inner flap and the outer flap, (b) is a perspective view of the state which closed the inner flap.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In addition, in the description of each embodiment, the same components are denoted by the same reference numerals, and duplicate description will be omitted.
In the following description, the front-rear, left-right direction is set for convenience of description of the packaging box of each embodiment, and does not limit the configuration of the packaging box.

[First embodiment]
As shown in FIGS. 1 and 2, the packaging box 1A of the first embodiment includes a body portion 10 formed in an octagonal rectangular tube shape, and a pair of upper and lower lid portions 20, 20.
Octagonal openings 10a and 10b are formed on the upper and lower surfaces of the body 10, and the upper and lower openings 10a and 10b are closed by the upper and lower lids 20 and 20, respectively.

The body 10 includes a pair of front and rear end walls 11 and 12, a pair of left and right side walls 13 and 14, and four inclined walls 16a to 16d formed between the adjacent end walls 11 and 12 and the side walls 13 and 14. And are equipped with.
The body 10 of the first embodiment has a shape in which a tapered surface is formed at each corner of a square rectangular tube.

As shown in FIG. 3, the packaging box 1A is formed by mountain-folding or valley-folding a blank sheet Sa obtained by cutting out a single cardboard sheet at each ruled line. The blank sheet Sa shown in FIG. 3 is arranged so that the outer surface side can be seen.
Each ruled line (folded line) of the blank sheet Sa is a linear groove formed by pressing the surface of the blank sheet Sa.
In addition, you may form a notch in a ruled line. This makes it easier to fold the blank sheet Sa along the ruled line.

The front end wall 11 of the first embodiment is formed in a quadrangle as shown in FIG. 1 (see FIG. 3).
A first inclined wall 16a is continuously provided on the left edge of the front end wall 11 via a ruled line L1 (see FIG. 3). The first inclined wall 16 a is arranged at the front left corner of the body 10.
The first inclined wall 16a extends obliquely leftward and rearward from the left edge portion of the front end wall 11. The first inclined wall 16a is inclined at an angle of 45 degrees with respect to the front end wall 11.
The first inclined wall 16a is formed in a strip shape along the left edge portion of the front end wall 11 and is formed in an elongated rectangular shape.

The left side wall 13 is continuously provided at the rear edge of the first inclined wall 16a via a ruled line L2 (see FIG. 3).
The left side wall 13 extends rearward from the rear edge of the first inclined wall 16a. The left side wall 13 is inclined at an angle of 45 degrees with respect to the first inclined wall 16a. The left side wall 13 of the first embodiment is formed in a quadrangle.

As shown in FIG. 2, a second inclined wall 16b is continuously provided at the rear edge of the left side wall 13 via a ruled line L3 (see FIG. 3). The second inclined wall 16b is arranged at the left rear corner of the body 10.
The second inclined wall 16b extends from the rear edge of the left side wall 13 toward the diagonally right rear. The second inclined wall 16b is inclined with respect to the left side wall 13 at an angle of 45 degrees.
The second inclined wall 16b is formed in a strip shape along the rear edge of the left side wall 13. The second slanted wall 16b and the first slanted wall 16a (see FIG. 1) have front-rear symmetrical shapes.

The rear end wall 12 is continuously provided at the rear edge of the second inclined wall 16b via a ruled line L4 (see FIG. 3).
The rear end wall 12 extends rightward from the rear edge of the second inclined wall 16b. The rear end wall 12 is inclined at an angle of 45 degrees with respect to the second inclined wall 16b. The rear end wall 12 has the same shape as the front end wall 11 (see FIG. 1).

As shown in FIG. 1, a third inclined wall 16c is continuously provided on the right edge of the rear end wall 12 via a ruled line L5 (see FIG. 3). The third inclined wall 16c is arranged at the right rear corner of the body 10.
The third inclined wall 16c extends from the right edge portion of the rear end wall 12 toward the diagonally right front. The third inclined wall 16c is inclined at an angle of 45 degrees with respect to the rear end wall 12.
The third inclined wall 16c is formed in a strip shape along the right edge portion of the rear end wall 12 (see FIG. 3). The third sloped wall 16c and the second sloped wall 16b (see FIG. 2) are bilaterally symmetrical.

The right side wall 14 is connected to the front edge of the third inclined wall 16c via a ruled line L6 (see FIG. 3).
The right side wall 14 extends forward from the front edge of the third inclined wall 16c. The right side wall 14 is inclined at an angle of 45 degrees with respect to the third inclined wall 16c. The right side wall 14 has the same shape as the left side wall 13 (see FIG. 3).

As shown in FIG. 2, a fourth inclined wall 16d is continuously provided on the right edge of the front end wall 11 via a ruled line L7 (see FIG. 3). The fourth inclined wall 16d is arranged at the front right corner of the body 10.
The fourth inclined wall 16d extends diagonally right rearward from the right edge portion of the front end wall 11. The fourth inclined wall 16d is inclined at an angle of 45 degrees with respect to the front end wall 11.
The fourth inclined wall 16d is formed in a strip shape along the right edge portion of the front end wall 11 (see FIG. 3). The fourth inclined wall 16d and the first inclined wall 16a (see FIG. 1) are bilaterally symmetrical.

The joining flap 15 is continuously provided on the rear edge of the fourth inclined wall 16d via a ruled line L8 (see FIG. 3). The joining flap 15 is formed in a strip shape along the rear edge of the fourth inclined wall 16d.
In the case of the first embodiment, the joining flap 15 is a portion joined to the front end portion of the inner surface of the right side wall 14 with an adhesive.

When the joining flap 15 is joined to the inner surface of the right side wall 14 while folding the blank sheet Sa (see FIG. 3) along the ruled lines L1 to L8, as shown in FIGS. 1 and 2, the front end wall 11, the rear end wall 12, The left side wall 13, the right side wall 14, and the four inclined walls 16a to 16d form an octagonal barrel-shaped body 10.

  As shown in FIG. 1, the upper lid portion 20 closes the upper opening portion 10a of the body portion 10, and is formed by a pair of front and rear inner flaps 21 and 21 and a pair of left and right outer flaps 22 and 22. ing.

As shown in FIG. 4B, the inner flap 21 on the front side is connected to the upper edge of the front end wall 11 via a ruled line L21 (see FIG. 3).
The inner flap 21 on the front side extends rearward from the upper edge of the front end wall 11. The front inner flap 21 is formed perpendicular to the front end wall 11.
The front inner flap 21 is inserted into the upper opening 10a. The upper surface of the inner flap 21 on the front side and the upper edge of the body portion 10 are arranged at substantially the same height.

The front inner flap 21 is formed in conformity with the shape of the front half of the upper opening 10a, and closes the region of the front half of the upper opening 10a.
The base portion of the inner flap 21 on the front side is widened in the left-right direction toward the rear in accordance with the distance between the inner surfaces of the inclined walls 16a and 16d (see FIG. 2) adjacent to the left and right sides of the front end wall 11.
Further, the front end portion of the inner flap 21 on the front side is formed to have a constant width in the left-right direction according to the distance between the inner surfaces of the left and right side walls 13, 14.

The left and right side edge portions 21a, 21a of the inner flap 21 on the front side are along the front half of the inner surfaces of the left and right side walls 13, 14 and the inner surfaces of the inclined walls 16a, 16d adjacent to the left and right of the front end wall 11. Is formed.
Therefore, when the front inner flap 21 is in the upper opening 10a, both side edges 21a, 21a of the front inner flap are on the inner surfaces of the left and right side walls 13, 14 and the inner surfaces of the left and right inclined walls 16a, 16d. Touching.

The inner flap 21 on the rear side is continuously provided on the upper edge portion of the rear end wall 12 via a ruled line L21 (see FIG. 3).
The rear inner flap 21 extends forward from the upper edge of the rear end wall 12. The inner flap 21 on the rear side is formed perpendicular to the rear end wall 12.
The rear inner flap 21 enters the upper opening 10a. The upper surface of the rear inner flap 21 and the upper edge of the body 10 are arranged at substantially the same height.

The inner flap 21 on the rear side and the inner flap 21 on the front side have front-rear symmetrical shapes. The rear inner flap 21 is formed in conformity with the shape of the rear half of the upper opening 10a of the body 10, and closes the rear half region of the upper opening 10a.
Both side edges 21a, 21a of the inner flap 21 on the rear side are in contact with the inner surfaces of the left and right side walls 13, 14 and the inner surfaces of the left and right inclined walls 16b, 16c, like the inner flap 21 on the front side.

The front and rear inner flaps 21, 21 are arranged in the front-rear direction inside the upper opening 10a. In the present embodiment, a gap is formed between the front edge portions of the front and rear inner flaps 21, 21.
Then, the front and rear inner flaps 21 and 21 enter the upper opening 10a, and the side edge portions 21a and 21a of both inner flaps 21 and 21 come into contact with the inner surfaces of the inclined walls 16a to 16d, whereby the upper opening 10a. Is precisely formed into an octagon and maintains its shape.

As shown in FIG. 1, a left outer flap 22 is connected to the upper edge of the left side wall 13 via a ruled line L22 (see FIG. 3).
The left outer flap 22 extends rightward from the upper edge of the left side wall 13. The outer flap 22 on the left side is formed perpendicular to the left side wall 13. The lower surface of the left outer flap 22 is superposed on the upper surfaces (outer surfaces) of the front and rear inner flaps 21, 21.
The left-side outer flap 22 has a uniform width in the front-rear direction, and the outer flap 22 has a rectangular shape. Both side edge portions of the left outer flap 22 are separated from the upper edge portions of the front and rear end walls 11 and 12.

An outer flap 22 on the right side is connected to the upper edge of the right side wall 14 via a ruled line L22 (see FIG. 3).
The right outer flap 22 extends leftward from the upper edge of the right wall 14. The right outer flap 22 is formed perpendicular to the right wall 14. The lower surface of the right outer flap 22 is superposed on the upper surfaces (outer surfaces) of the front and rear inner flaps 21, 21.
The right outer flap 22 and the left outer flap 22 are formed in bilaterally symmetrical shapes. The left and right outer flaps 22, 22 are arranged adjacent to each other on the left and right.

  The front and rear inner flaps 21, 21 and the left and right outer flaps 22, 22 described above form an upper lid portion 20, and the upper lid portion 20 closes the upper opening portion 10a of the body portion 10.

  As shown in FIG. 2, the lower lid portion 20 closes the lower opening portion 10b of the body portion 10, and includes a pair of front and rear inner flaps 21 and 21 and a pair of left and right outer flaps 22 and 22. Has been formed.

The lower lid portion 20 and the upper lid portion 20 are vertically symmetrical. The front and rear inner flaps 21 and 21 of the lower lid 20 enter the lower opening 10b, and the left and right outer flaps 22 and 22 are superposed on the lower surfaces (outer surfaces) of the front and rear inner flaps 21 and 21.
Both side edges 21a, 21a of the inner flap 21 of the lower lid 20 are in contact with the inner surfaces of the side walls 13, 14 and the inclined walls 16a to 16d.

  Next, as shown in FIG. 4A, when the lid portion 20 (see FIG. 1) is formed on the body portion 10 from the state where the inner flap 21 and the outer flap 22 are opened with respect to the body portion 10, first, As shown in FIG. 4B, the front and rear inner flaps 21 and 21 are bent with respect to the front and rear end walls 11 and 12.

Subsequently, as shown in FIG. 1, the left and right outer flaps 22, 22 are bent with respect to the left and right side walls 13, 14, and the lower surfaces of the left and right outer flaps 22, 22 are set on the upper surfaces of the front and rear inner flaps 21, 21. Overlap.
As a result, the upper surface of the inner flap 21 is pressed by the outer flap 22, and the front and rear inner flaps 21, 21 enter the upper opening 10a.
Then, the side edge portions 21a of the front and rear inner flaps 21 and 21 are in contact with the inner surfaces of the side walls 13 and 14 and the inner surfaces of the inclined walls 16a to 16d, and the upper opening 10a is accurately formed in an octagon. The shape is maintained.

  In the packaging box 1A of the first embodiment as described above, as shown in FIG. 4B, when the front and rear inner flaps 21 and 21 are closed with respect to the body portion 10, both side edge portions 21a of the inner flap 21, 21a contacts the inner surfaces of the side walls 13 and 14 and the inner surfaces of the inclined walls 16a to 16d. As a result, the inner surface of the body portion 10 is supported by the front and rear inner flaps 21, 21. Therefore, even when the body 10 is empty, the body 10 can be accurately formed into an octagon and the shape can be maintained.

  In the packaging box 1A of the first embodiment, as shown in FIG. 1, the lid 20 is formed by a pair of inner flaps 21 and 21 and a pair of outer flaps 22 and 22 as in the case of the A-type cardboard box. Therefore, the packaging box 1A can be manufactured using a general A-type cardboard box box making machine.

Further, in the packaging box 1A of the first embodiment, the inclination angles of the inclined walls 16a to 16d with respect to the end walls 11 and 12 and the side walls 13 and 14 are formed to be 45 degrees. With this configuration, the inclined walls 16a to 16d can be easily bent with respect to the end walls 11 and 12 and the side walls 13 and 14, and the shape of the body portion 10 can be stabilized. In addition, by setting the inclination angle to 45 degrees, the material area required to form the body portion 10 can be minimized.
Further, by forming the body portion 10 in an octagonal shape and disposing the inclined walls 16a to 16d at the corner portions, it is possible to maintain the compressive strength even if the material area is reduced.

  In the packaging box 1A of the first embodiment, product information can be printed on 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, as well as the outer surfaces of the inclined walls 16a to 16d. As a result, as shown in FIG. 5, when the packaging boxes 1A are arranged in the sales floor, the customer can clearly see the product information from the front, rear, left, right, and diagonal directions. Therefore, in the packaging box 1A of the first embodiment, the products housed inside can be effectively appealed.

Although the first embodiment of the present invention has been described above, the present invention is not limited to the first embodiment, and can be appropriately modified without departing from the spirit thereof.
The width and height of the end walls 11 and 12, the side walls 13 and 14 and the inclined walls 16a to 16d of the packaging box 1A shown in FIGS. 1 and 2 are not limited.
Further, the inclination angles of the inclined walls 16a to 16d with respect to the end walls 11 and 12 and the side walls 13 and 14 are not limited.

  For example, in the packaging box 1A of the first embodiment, both end walls 11 and 12, both side walls 13 and 14, and each inclined wall 16a to 16d may be formed to have the same width, and the body portion 10 may be formed to have a regular octagon. .

  The packaging box 1A of the first embodiment is made of cardboard. The packaging box 1A can be formed of various known paperboards, but it is preferable to secure the strength of the packaging box 1A by using a corrugated board having a thickness of 3 mm or more.

[Second embodiment]
In the packaging box 1B of the second embodiment, as shown in FIGS. 6 and 7, the body portion 10 of the packaging box 1A (see FIG. 1) of the above-described first embodiment is formed in an octagonal rectangular tube shape. However, the difference is that the body portion 10 is formed in a hexagonal rectangular tube shape.

The packaging box 1B of the second embodiment includes a body portion 10 formed in a hexagonal rectangular tube shape, and a pair of upper and lower lid portions 20 and 20.
Hexagonal openings 10a and 10b are formed on the upper surface and the lower surface of the body 10, and the upper and lower openings 10a and 10b are closed by the upper and lower lids 20 and 20, respectively.

The body 10 of the second embodiment includes a pair of front and rear end walls 11 and 12, a pair of left and right side walls 13 and 14, and a first inclined wall 16a formed between the front end wall 11 and the left side wall 13. The second inclined wall 16b formed between the rear end wall 12 and the right side wall 14 is provided.
The body portion 10 of the second embodiment has a shape in which a tapered surface is formed at two corner portions at diagonal positions among the four corner portions of a square tubular portion.

  As shown in FIG. 8, the packaging box 1B of the second embodiment is formed by mountain-folding or valley-folding a blank sheet Sb obtained by cutting out a single cardboard sheet at each ruled line.

In the body portion 10 of the second embodiment, a right side wall 14 is continuously provided on the right edge portion of the front end wall 11 via a ruled line L1 (see FIG. 8), as shown in FIG.
The right side wall 14 extends rearward from the right edge of the front end wall 11. The right side wall 14 is arranged at an angle of 90 degrees with respect to the front end wall 11.

A first inclined wall 16a is continuously provided on the left edge of the front end wall 11 via a ruled line L2 (see FIG. 8). The first inclined wall 16 a is arranged at the front left corner of the body 10.
The first inclined wall 16a extends obliquely leftward and rearward from the left edge portion of the front end wall 11. The first inclined wall 16a is inclined at an angle of 45 degrees with respect to the front end wall 11.

The left side wall 13 is connected to the rear edge of the first inclined wall 16a via a ruled line L3 (see FIG. 8).
The left side wall 13 extends rearward from the rear edge of the first inclined wall 16a. The left side wall 13 is inclined at an angle of 45 degrees with respect to the first inclined wall 16a.

As shown in FIG. 7, a rear end wall 12 is continuously provided at the rear edge of the left side wall 13 via a ruled line L4 (see FIG. 8).
The rear end wall 12 extends rightward from the rear edge of the left side wall 13. The rear end wall 12 is arranged at an angle of 90 degrees with respect to the left side wall 13.

As shown in FIG. 6, a second inclined wall 16b is continuously provided on the right edge of the rear end wall 12 via a ruled line L5 (see FIG. 8). The second inclined wall 16b is arranged at the right rear corner of the body 10.
The second inclined wall 16b extends from the right edge of the rear end wall 12 toward the diagonally right front. The second inclined wall 16b is inclined at an angle of 45 degrees with respect to the rear end wall 12.
The second inclined wall 16b and the first inclined wall 16a are arranged at diagonal positions of the body 10.

  The joining flap 15 is continuously provided at the front edge of the second inclined wall 16c via a ruled line L6 (see FIG. 8). In the case of the second embodiment, the joining flap 15 is joined to the rear end portion of the inner surface of the right side wall 14 with an adhesive.

  The upper lid 20 closes the upper opening 10a of the body 10, and is formed by a pair of front and rear inner flaps 21 and 21 and a pair of left and right outer flaps 22 and 22.

As shown in FIG. 9B, the inner flap 21 on the front side is continuously provided on the upper edge portion of the front end wall 11 via a ruled line L21 (see FIG. 8).
The inner flap 21 on the front side extends rearward from the upper edge of the front end wall 11. The front inner flap 21 enters the upper opening 10a and closes the front half region of the upper opening 10a.

The left side edge 21a of the front inner flap 21 is formed along the front half of the inner surface of the left side wall 13 and the inner surface of the first inclined wall 16a. The right side edge portion 21 a of the front inner flap 21 is formed along the front half of the inner surface of the right side wall 14.
Therefore, in a state in which the front inner flap 21 has entered the upper opening 10a, both side edges 21a, 21a of the front inner flap are in contact with the inner surfaces of the left and right side walls 13, 14 and the inner surface of the first inclined wall 16a. ing.

The inner flap 21 on the rear side is continuously provided on the upper edge portion of the rear end wall 12 via a ruled line L21 (see FIG. 8).
The rear inner flap 21 extends forward from the upper edge of the rear end wall 12. The inner flap 21 on the rear side enters the upper opening 10a and closes the rear half region of the upper opening 10a.

The right side edge portion 21a of the rear inner flap 21 is formed along the front half of the inner surface of the right side wall 14 and the inner surface of the second inclined wall 16b. The left side edge 21a of the rear inner flap 21 is formed along the rear half of the inner surface of the left side wall 13.
Therefore, in a state where the rear inner flap 21 has entered the upper opening 10a, both side edges 21a, 21a of the rear inner flap are the inner surfaces of the left and right side walls 13, 14 and the inner surface of the second inclined wall 16b. Touches.

  The front and rear inner flaps 21 and 21 are inserted into the upper opening 10a, and both side edges 21a and 21a of both inner flaps 21 and 21 are in contact with the inner surfaces of the inclined walls 16a and 16b. The shape is exactly hexagonal and the shape is maintained.

As shown in FIG. 6, a left outer flap 22 is continuously provided on the upper edge portion of the left side wall 13 via a ruled line L22 (see FIG. 8). The left outer flap 22 is superposed on the upper surfaces of the front and rear inner flaps 21, 21.
In the packaging box 1B of the second embodiment, the rear edge portion of the left outer flap 22 overlaps with the upper edge portion of the rear end wall 12.

An outer flap 22 on the right side is connected to the upper edge of the right side wall 14 via a ruled line L22 (see FIG. 8). The right outer flap 22 is superposed on the upper surfaces of the front and rear inner flaps 21, 21.
In the packaging box 1B of the second embodiment, the front edge portion of the right outer flap 22 overlaps the upper edge portion of the front end wall 11.

  As shown in FIG. 7, the lower lid portion 20 closes the lower opening portion 10b of the body portion 10, and is constituted by a pair of front and rear inner flaps 21 and 21 and a pair of left and right outer flaps 22 and 22. Has been formed.

The lower lid portion 20 and the upper lid portion 20 are vertically symmetrical. The front and rear inner flaps 21, 21 of the lower lid 20 enter the lower opening 10b, and the left and right outer flaps 22, 22 are superposed on the lower surfaces of the front and rear inner flaps 21, 21.
Further, both side edge portions 21a, 21a of the inner flap 21 of the lower lid portion 20 are in contact with the inner surfaces of the both side walls 13, 14 and the inner surfaces of both the inclined walls 16a, 16b.
Further, the rear edge of the left outer flap 22 overlaps with the lower edge of the rear end wall 12, and the front edge of the right outer flap 22 overlaps with the lower edge of the front end wall 11.

  In the packaging box 1B of the second embodiment as described above, as shown in FIG. 9B, when the front and rear inner flaps 21 and 21 are closed with respect to the body portion 10, the front and rear inner flaps 21 and 21 cause The inner surface of the body 10 is supported. Therefore, even if the body portion 10 is empty, the body portion 10 can be accurately formed into a hexagonal shape and its shape can be maintained.

  In the packaging box 1B of the second embodiment, as shown in FIG. 6, the lid 20 is formed by a pair of inner flaps 21 and 21 and a pair of outer flaps 22 and 22, as in the case of the A-type cardboard box. Therefore, the packaging box 1B can be manufactured using a general A-type cardboard box box making machine.

In the packaging box 1B of the second embodiment, of the four corners of the body 10, two corners are formed at an angle of 90 degrees. As a result, the shape of the packaging box 1B can be stabilized, so that the packaging box 1B can be prevented from losing its shape.
Further, when pulling out or pulling the packaging box 1B, it is easy to reach the corner portion of the body 10 formed at 90 degrees, and thus the packaging box 1B is easily transported.

  In the packaging box 1B of the second embodiment, since the shape of the packaging box 1B is stable when the left and right outer flaps 22, 22 are closed with tape, the packaging box 1B can be easily sealed. Furthermore, in the packaging box 1B of the second embodiment, one of the front and rear edges of the outer flap 22 overlaps the upper edge or the lower edge of the end walls 11 and 12, so that the outer flap 22 and the end walls 11 and 12 are The tape can be securely attached to the corners.

Moreover, in the packaging box 1B of the second embodiment, the inclination angles of the inclined walls 16a and 16b with respect to the end walls 11 and 12 and the side walls 13 and 14 are formed to be 45 degrees. With this configuration, the inclined walls 16a and 16b can be easily bent with respect to the end walls 11 and 12 and the side walls 13 and 14, and the shape of the body portion 10 can be stabilized. In addition, by setting the inclination angle to 45 degrees, the material area required to form the body portion 10 can be minimized.
Further, by making the body 10 hexagonal, the compressive strength can be maintained even if the material area is reduced.

  In the packaging box 1B of the second embodiment, product information can be printed on 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, as well as the outer surfaces of both inclined walls 16a and 16b. With this, when the packaging boxes 1B are lined up on the sales floor, the customer can clearly see the product information from the front, rear, left, right, and diagonal directions, so that the products housed inside can be effectively appealed.

  The second embodiment of the present invention has been described above, but the present invention is not limited to the second embodiment, and like the first embodiment, can be appropriately modified without departing from the spirit thereof. Is.

  In the packaging box of the present invention, at least two diagonally opposite diagonal walls can be formed. That is, in the present invention, by forming the body portion into a hexagonal or octagonal rectangular tube shape, the body portion can be folded when the packaging box is transported.

1A packaging box (first embodiment)
1B packaging box (second embodiment)
10 Body 10a Upper Opening 10b Lower Opening 11 Front End Wall 12 Rear End Wall 13 Left Side Wall 14 Right Side Wall 15 Joining Flap 16a First Inclined Wall 16b Second Inclined Wall 16c Third Inclined Wall 16d Fourth inclined wall 20 Lid 21 Inner flap 22 Outer flap Sa Blank sheet (first embodiment)
Sb blank sheet (second embodiment)

Claims (10)

A body formed in a polygonal rectangular tube shape,
A lid that closes the opening of the body,
The body is
A pair of front and rear end walls having the same width in the circumferential direction of the body ,
A pair of left and right sidewalls having the same width in the circumferential direction of the body ,
An even number of sloped walls,
A joining flap that is continuously provided to the inclined wall that is continuously provided to one of the end walls ,
A pair of the inclined walls having the same width in the circumferential direction of the body is arranged in diagonal positions,
The inclined wall is formed between the end wall and the side wall adjacent to each other, and the joining flap is joined to an inner surface of the side wall,
The lid is
A pair of front and rear inner flaps that are connected to the front and rear end walls and that enter the opening of the body,
A pair of left and right outer flaps, which are continuously provided on the left and right side walls and are stacked on the outer surface of the inner flap,
Both side edges of the inner flap are formed along inner surfaces of the both side walls,
A part of a side edge portion of at least one of the inner flaps is formed along an inner surface of the inclined wall and is in contact with the inner surface of the inclined wall,
By supporting the inner surfaces of the both side walls and the inner surface of the inclined wall by both side edge portions of the inner flap, the shape of the body portion is maintained,
The packaging box, wherein the outer surface of at least one of the inclined walls is a surface on which information is visible. The packaging box according to claim 1, wherein
The packaging box, wherein the lid part closes an opening on the lower side of the body part. The packaging box according to claim 1 or 2, wherein
The body is formed into an octagonal rectangular tube,
The body has a pair of front and rear end walls, a pair of left and right side walls, and four inclined walls,
The packaging box, wherein both side edges of the inner flap are formed along the inner surfaces of the both side walls and the inner surfaces of the two inclined walls adjacent to the end walls. The packaging box according to claim 1 or 2, wherein
The body is formed in a hexagonal rectangular tube shape,
The body has a pair of front and rear end walls, a pair of left and right side walls, and two inclined walls, the both inclined walls are arranged in diagonal positions,
Both side edges of the inner flap are formed along inner surfaces of the both side walls,
The packaging box, wherein a part of a side edge portion of the inner flap is formed along an inner surface of the inclined wall. The packaging box according to any one of claims 1 to 4,
A packaging box, wherein an inclination angle of the inclined wall with respect to the end wall and the side wall is 45 degrees. A body formed in a polygonal rectangular tube shape,
A lid for closing the opening of the body,
The body is
A pair of front and rear end walls having the same width in the circumferential direction of the body ,
A pair of left and right sidewalls having the same width in the circumferential direction of the body ,
An even number of sloped walls,
A joining flap that is continuously provided to the inclined wall that is continuously provided to one of the end walls ,
A pair of the inclined walls having the same width in the circumferential direction of the body portion are formed so as to be arranged in diagonal positions,
The inclined wall is formed between the end wall and the side wall adjacent to each other, and the joining flap is formed to be joined to the inner surface of the side wall,
The lid is
A pair of front and rear inner flaps that are connected to the front and rear end walls and that enter the opening of the body portion,
A pair of left and right outer flaps that are continuously provided on the left and right side walls and that are superposed on the outer surface of the inner flap;
Both side edge portions of the inner flap are formed along the inner surfaces of the both side walls,
A part of the side edge portion of at least one of the inner flaps is formed along the inner surface of the inclined wall, and is formed so as to contact the inner surface of the inclined wall,
By supporting the inner surfaces of the both side walls and the inner surface of the inclined wall by the both side edges of the inner flap, the shape of the body is formed to be maintained,
An outer surface of at least one of the inclined walls is a blank sheet for forming a packaging box in which information is visible. The blank sheet according to claim 6,
The said cover part is formed so that the opening part of the lower side of the said body part may be closed, The blank sheet characterized by the above-mentioned. The blank sheet according to claim 6 or 7, wherein
The body is formed into an octagonal rectangular tube,
The body has a pair of front and rear end walls, a pair of left and right side walls, and four inclined walls,
A blank sheet, wherein both side edges of the inner flap are formed so as to extend along inner surfaces of the both side walls and two inner surfaces of the inclined walls adjacent to the end wall. The blank sheet according to claim 6 or 7, wherein
The body is formed in a hexagonal rectangular tube shape,
The body has a pair of front and rear end walls, a pair of left and right side walls, and two inclined walls, the both inclined walls are arranged so as to be diagonal positions,
Both side edge portions of the inner flap are formed along the inner surfaces of the both side walls,
The blank sheet, wherein a part of a side edge portion of the inner flap is formed along an inner surface of the inclined wall. The blank sheet according to any one of claims 6 to 9,
A blank sheet, wherein an inclination angle of the inclined wall with respect to the end wall and the side wall is 45 degrees.

Images