JP7052909B1 - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box which enhances the strength against a pulling force, makes it easy to apply a pulling force to a handle portion, and further makes it difficult for foreign matter to enter inside. SOLUTION: The packaging box 1 has side walls 70 provided in the left and right openings of a cylindrical body portion 10. The side wall 70 includes front and rear lateral flaps 71 and 71, and an upper flap 72 attached to the outer surface of both lateral flaps 71 and 71. The inner handle portions 81 are opened in the front and rear lateral flaps 71 and 71, and the two front and rear outer handle portions 82 and 82 are open in the upper flap 72. The both outer handle portions 82 and 82 are overlapped on the outer sides of the both inner handle portions 81 and 81, respectively. The lid plate 85 is arranged inside the outer handle portion 82. The upper edge portion of the lid plate 85 is continuously provided with the upper edge portion of the outer handle portion 82. [Selection diagram] Fig. 1

Description

The present invention relates to a packaging box.

The corrugated wraparound packaging box has a square tubular body with a top plate, bottom plate and front and rear end walls, on the outer surface of the front and rear lateral flaps connected to both end walls, on the top plate and bottom plate. By stacking the upper flaps and the lower flaps that are continuously provided, side walls are formed at the left and right openings of the body.

As the wraparound type packaging box described above, there is a case in which a handle portion is opened in the horizontal flap and a handle portion is opened in the upper flap, and the inner and outer handle portions are overlapped (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2007-238143

In the above-mentioned conventional packaging box, when the inner and outer handle portions are pulled up by hand, the pulling force acts on one of the inner and outer handle portions with a large bias, and one of the inner and outer handle portions is easily damaged. Therefore, the conventional packaging box has a problem that the strength against the pulling force is low.
Further, in the conventional packaging box, there is a problem that it is difficult to apply a pulling force to the handle portion because the upper edge portion of the handle portion directly hits the palm when the handle portion is touched.
Further, in the conventional packaging box, since the entire inner and outer handling portions are open, there is a problem that foreign matter easily enters the inside of the packaging box through the inner and outer handling portions.

An object of the present invention is to provide a packaging box that solves the above-mentioned problems, enhances the strength against a pulling force, makes it easy to apply a pulling force to a handle portion, and further prevents foreign matter from entering the inside.

In order to solve the above-mentioned problems, the present invention comprises a packaging box having a square tubular body having a top plate, a bottom plate and front and rear end walls, and side walls provided at the left and right openings of the body. have. The side walls are connected to the front and rear lateral flaps connected to the both end walls, the upper flaps connected to the top plate and overlapped with the both lateral flaps, and the upper flaps connected to the bottom plate, and are connected to the both lateral flaps. It has a stacked lower flap and. The upper flap is attached to the outer surface of both lateral flaps. The front and rear lateral flaps are open with inner hooks, and the upper flaps are open with two front and rear outer hooks. The both outer handle portions are recesses recessed upward from the lower edge portion of the upper flap. A lid plate is arranged inside the outer handle portion. The both outer handle portions and the both lid plates are respectively overlapped only on the outer side of the upper portion of the both inner handle portions. The upper edge portion of the lid plate is connected to the upper edge portion of the outer handle portion via a polygonal line, and when the lid plate is pushed inward, the lid plate overlaps the upper edge portion of the inner handle portion. It is configured in.

In the packaging box of the present invention, a space having a thickness of at least one horizontal flap is formed between the inner surface of the lid plate and the outer surface of the contents. Can be plugged in.
Then, when the lid plate is pushed inward, the lid plate overlaps with the upper edge portion of the inner handle portion. When the lower surface of the lid plate is pulled by hand in this state, the pulling force acts on the outer handle portion and the inner handle portion substantially evenly, so that the outer handle portion and the inner handle portion are not easily damaged. Therefore, in the packaging box of the present invention, the strength against the pulling force can be increased.

In the packaging box of the present invention, when the outer handle portion and the inner handle portion are touched, the lid plate abuts on the palm, and the upper edge portion of the outer handle portion and the inner handle portion is prevented from directly touching the palm. Therefore, it is easy to apply a pulling force to the outer handle and the inner handle.

In the packaging box of the present invention, it is easy to reach the outer handle portion and the inner handle portion from either the front or the rear of the packaging box.
In addition, by opening the inner hooks on the front and rear horizontal flaps and superimposing the front and rear outer hooks on both inner hooks, the pulling force is applied to the part where the upper flap and the horizontal flap are overlapped. Is added, so the strength against pulling force can be increased.
In this configuration, the front and rear lateral flaps are separated in the front-rear direction, and when only the upper flap is placed between the front and rear lateral flaps, it is possible to prevent the pulling force from being applied only to the upper flap. A pulling force is applied to the part where the flap and the lateral flap are overlapped.

In the packaging box of the present invention, since at least a part of the outer handle portion is closed by the lid plate, the amount of foreign matter that enters the inside through the outer handle portion and the inner handle portion can be reduced.

In the above-mentioned packaging box, the lower flap may be attached to the inner surface of both lateral flaps. In this case, since a space having at least two thicknesses of the lateral flap and the lower flap is formed between the inner surface of the lid plate and the outer surface of the contents, the lid plate is placed with respect to the upper flap. It can be securely pushed inward.

In the above-mentioned packaging box, it is preferable that the upper edge portion of the inner handle portion and the upper edge portion of the outer handle portion are inclined upward from the inner end portion in the front-rear direction toward the outer end portion.
In this configuration, the upper edges of the inner and outer handles are inclined along the shape of the palm, so that when the inner and outer handles are inserted and pulled up, the inner and outer handles are used. It becomes easier to apply force to the handle.

In the above-mentioned packaging box, when the upper flap and the lower flap are abutted or overlapped with each other, the lower flap is opened with a lower handle portion overlapping with the inner handle portion. In this configuration, even if the upper flap and the lower flap are not separated from each other, the inner handle portion can be formed large.
When the lower flap is overlapped on the inner surface side of the upper flap, when the lower flap is pulled up by putting a hand on the lower surface of the lid plate of the upper flap, the pulling force is applied to the outer handle portion, the inner handle portion and the lower handle portion. Since it acts in a substantially evenly dispersed manner, it is possible to increase the strength against the pulling force.

In the packaging box of the present invention, the lid plate connected to the outer handle portion overlaps with the upper edge portion of the inner handle portion, so that the strength against the pulling force is increased and the pulling force can be easily applied. Further, in the packaging box of the present invention, since the lid plate is arranged on the outer handle portion, it is difficult for foreign matter to enter the inside.

It is a perspective view which looked at the packaging box which concerns on 1st Embodiment of this invention from the front upper left. It is a figure which showed the blank sheet of the packaging box which concerns on 1st Embodiment of this invention. It is an enlarged perspective view which showed the side wall of the packaging box which concerns on 1st Embodiment of this invention. It is a perspective view which showed the state which opened the packaging box which concerns on 1st Embodiment of this invention. It is a figure which showed the blank sheet of the modification of the packaging box which concerns on 1st Embodiment of this invention. It is a perspective view which looked at the packaging box which concerns on 2nd Embodiment of this invention from the front upper left. It is a figure which showed the blank sheet of the packaging box which concerns on the 2nd Embodiment of this invention.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the description of each embodiment, the same components are designated by the same reference numerals, and duplicate description will be omitted.
In the following description, the front-back and left-right directions are set for convenience in explaining the packaging box of the present embodiment, and do not limit the configuration and usage state of the packaging box.

[First Embodiment]
As shown in FIG. 1, the packaging box 1A of the first embodiment includes a square tubular body portion 10 and left and right side walls 70 and 70 provided in the left and right openings of the body portion 10. It is a wraparound type cardboard box.
The body portion 10 is formed in the shape of a quadrangular square cylinder, and includes a top plate 20, a bottom plate 30, a front end wall 40, and a rear end wall 50.

As shown in FIG. 2, the packaging box 1A of the first embodiment is formed by folding a blank sheet S1 obtained by cutting out a corrugated cardboard sheet into mountain folds or valley folds at each polygonal line. The blank sheet S1 shown in FIG. 2 is arranged so that the inner surface side can be seen.
The polygonal line of the blank sheet S1 is a ruled line (pressed ruled line) formed by linearly pressing the surface of the blank sheet S1. In addition, an intermittent notch may be formed in the ruled line. In this way, the blank sheet S1 can be easily bent at the polygonal line.
Further, a polygonal line may be formed by intermittently forming a half-cut notch that cuts only the surface of the sheet or a notch that penetrates the sheet to form a linear shape.

Each cutting guide line formed on the blank sheet S1 is a perforated line in which a notch is intermittently formed. The shape and length of the notch are not limited. Further, in each drawing showing the packaging box 1A assembled from the blank sheet S1, the shape of the notch in each cutting guide wire is shown in a simplified manner in order to clearly show the structure of the packaging box 1A.

As shown in FIG. 1, the bottom plate 30 is a quadrangular flat plate. A front end wall 40 is continuously provided at the front edge portion of the bottom plate 30 via a polygonal line, and a rear end wall 50 is continuously provided at the trailing edge portion of the bottom plate 30. The front end wall 40 and the rear end wall 50 are the same quadrangular wall bodies, and are formed perpendicular to the bottom plate 30. At the center of the upper edge of the front end wall 40, an opening start portion 41 recessed downward is formed.

A joining piece 60 is continuously provided at the trailing edge of the bottom plate 30 via a broken line. The joint piece 60 extends in a band shape along the trailing edge of the bottom plate 30.
The joint piece 60 is bent perpendicular to the bottom plate 30. The outer surface of the joint piece 60 is attached to the lower end of the inner surface of the rear end wall 50 by an adhesive, so that the bottom plate 30 and the rear end wall 50 are connected via the joint piece 60.

The leading edge of the top plate 20 is connected to the upper edge of the front end wall 40 via the cutting guide wire L10, and the trailing edge of the top plate 20 is connected to the upper edge of the rear end wall 50 via the polygonal line. It is serialized. The top plate 20 is the same quadrangular flat plate as the bottom plate 30, and is arranged parallel to the bottom plate 30.

At the center of the front edge of the top plate 20, a lid piece 21 that has entered the front end wall 40 side is continuously provided via a broken line. The lid piece 21 closes the opening start portion 41 of the front end wall 40. The edges other than the upper edge of the lid piece 21 are connected to the inner edge of the opening start portion 41 via the cutting guide wire.

The left and right top ruled lines L20 and L20 extend rearward from the leading edge portion (cutting guide line L10) of the top plate 20. Both top ruled lines L20 and L20 are formed on the inner surface of the top plate 20.
The top ruled line L20 on the left side is arranged on the left side of the opening start portion 41. The top ruled line L20 on the left side is curved in an arc shape so as to have a convex shape toward the left side.
The top ruled line L20 on the right side is formed symmetrically with respect to the top ruled line L20 on the left side, and is curved in an arc shape so as to be convex toward the right.

In the top plate 20, an upper opening 25 is formed between the left and right top ruled lines L20 and L20. The upper opening 25 is formed in an elliptical shape having a wide width in the left-right direction, and semicircularly protruding portions are formed at both left and right ends. The upper opening 25 is provided for confirming the contents from the outside.

The left side wall 70 has front and rear lateral flaps 71 and 71 connected to the front end wall 40 and the rear end wall 50, respectively, an upper flap 72 connected to the top plate 20, and a lower flap connected to the bottom plate 30. 73 and.

The lateral flap 71 on the front side is continuously provided at the left edge portion of the front end wall 40 via a polygonal line, and is formed perpendicular to the front end wall 40. The lateral flap 71 on the front side extends in a band shape along the left edge of the front end wall 40.
The lateral flap 71 on the rear side is continuously provided at the left edge portion of the rear end wall 50 via a polygonal line. The lateral flap 71 on the rear side is formed symmetrically with respect to the lateral flap 71 on the front side. The front and rear horizontal flaps 71 and 71 are arranged at intervals in the front-rear direction.

The upper flap 72 is continuously provided at the left edge portion of the top plate 20 via a broken line, and is formed perpendicular to the top plate 20. The upper flap 72 extends in a band shape along the left edge of the top plate 20. The upper flap 72 is superposed on the upper part of the outer surface of the front and rear lateral flaps 71, 71. The inner surface of the upper flap 72 is attached to the outer surfaces of the front and rear lateral flaps 71 and 71 by an adhesive.

The lower flap 73 is continuously provided at the left edge of the bottom plate 30 via a polygonal line, and is formed perpendicular to the bottom plate 30. The lower flap 73 extends in a band shape along the left edge of the bottom plate 30. The lower flap 73 is overlapped with the lower portion of the inner surface of the front and rear lateral flaps 71 and 71. The outer surface of the lower flap 73 is attached to the inner surfaces of the front and rear lateral flaps 71 and 71 by an adhesive. The upper flap 72 and the lower flap 73 are arranged at intervals in the vertical direction.

Left and right connecting flaps 74 and 74 are connected to the left and right edges of the lower flap 73, respectively. The connecting flap 74 is superposed on the inner surface of the joining piece 60. The outer surface of the connecting flap 74 is attached to the inner surface of the joining piece 60 by an adhesive.

At the rear lower corner of the lateral flap 71 on the rear side, a second attachment portion 75 to be attached to the lower flap 73 is partitioned by a cutting guide line.
The inner surface of the second attachment portion 75 is attached to the lower end portion of the outer surface of the lower flap 73 by an adhesive, so that the lateral flap 71 and the lower flap 73 on the rear side are connected to each other.

An inner handle portion 81 on the front side is opened at the upper part of the lateral flap 71 on the front side (see FIG. 2). The inner handle portion 81 on the front side is a recess recessed from the trailing edge portion of the lateral flap 71 on the front side toward the front. The upper edge portion and the lower edge portion of the inner handle portion 81 on the front side are inclined upward from the rear end portion to the front end portion.

An inner handle portion 81 on the rear side is opened at the upper part of the lateral flap 71 on the rear side (see FIG. 2). The rear inner handle 81 is formed symmetrically with respect to the front inner handle 81. The upper edge portion and the lower edge portion of the inner handle portion 81 on the rear side are inclined upward from the front end portion to the rear end portion.

The upper flap 72 is open to two front and rear outer handle portions 82, 82. The outer handle portion 82 is a recess that is recessed upward from the lower edge portion of the upper flap 72. The front and rear two outer handle portions 82, 82 are formed symmetrically in the front and rear.
The upper edge of the front outer handle 82 is inclined upward from the rear end to the front end, and the upper edge of the rear outer handle 82 is upward from the front end to the rear end. It is tilted.

The outer handle portion 82 on the front side overlaps the outside of the inner handle portion 81 on the front side, and the outer handle portion 82 on the rear side overlaps the outside of the inner handle portion 81 on the rear side, so that the outer handle portion 82 and the inner handle portion 81 overlap. And communicate. The upper edge portion of the inner handle portion 81 and the upper edge portion of the outer handle portion 82 are formed so as to substantially coincide with each other in the side view of the side wall 70.

A lid plate 85 is arranged inside the outer handle portion 82. The upper edge portion of the lid plate 85 is connected to the upper edge portion of the outer handle portion 82 via a polygonal line.
The edges other than the upper edge of the lid plate 85 are connected to the inner edge of the outer handle 82 via the slit. Further, the lower edge portion of the lid plate 85 is formed at the same height as the lower edge portion of the upper flap 72.
As shown in FIG. 3, when the lid plate 85 is pushed inward, the lid plate 85 bends inward with respect to the outer handle portion 82 at the polygonal line. As a result, the lid plate 85 enters the inner handle portion 81.

As shown in FIG. 1, the right side wall 70 is formed symmetrically with respect to the left side wall 70. That is, the right side wall 70 is also formed by superimposing the upper flap 72 and the lower flap 73 on the front and rear lateral flaps 71 and 71, similarly to the left side wall 70. Further, also in the right side wall 70, the inner handle portion 81 is opened in the horizontal flap 71, the outer handle portion 82 is open in the upper flap 72, and the outer handle portion 82 is overlapped on the outer side of the inner handle portion 81. There is. Further, a lid plate 85 is arranged inside the outer handle portion 82.

When lifting the packaging box 1A as described above, a hand is inserted into the left and right outer handle portions 82, 82 and the left and right inner handle portions 81, 81 shown in FIG. 1 from the outside. When a hand is inserted into the outer handle portion 82, the lid plate 85 is pushed inward.
In the packaging box 1A of the first embodiment, a space having at least two thicknesses of the horizontal flap 71 and the lower flap 73 is formed between the inner surface of the lid plate 85 and the outer surface of the contents. The lid plate 85 can be pushed inward.

As shown in FIG. 4, when the lid plate 85 connected to the outer handle portion 82 is pushed inward, the lid plate 85 overlaps the upper edge portion of the inner handle portion 81. When the lower surface (outer surface) of the lid plate 85 is pulled up in this state, the pulling force acts on the outer handle portion 82 and the inner handle portion 81 in a substantially even manner. Therefore, the outer handle portion 82 and the inner handle portion 81 is hard to break. Therefore, in the packaging box 1A of the first embodiment, the strength against the pulling force can be increased.

In the packaging box 1A of the first embodiment, when the outer handle portion 82 and the inner handle portion 81 are touched, the lid plate 85 hits the palm, so that the upper edge portion of the outer handle portion 82 and the inner handle portion 81 is the palm. You can prevent it from hitting directly. Therefore, in the packaging box 1A of the first embodiment, it is easy to apply a pulling force to the outer handle portion 82 and the inner handle portion 81.

In the packaging box 1A of the first embodiment, as shown in FIG. 1, two front and rear outer handle portions 82 and 82 are opened and two front and rear inner handle portions 81 and 81 are opened on both side walls 70 and 70. Therefore, it is easy to reach the outer handle portion 82 and the inner handle portion 81 from either the front or the rear of the packaging box 1A.

In the packaging box 1A of the first embodiment, the upper edge portion of the inner handle portion 81 and the upper edge portion of the outer handle portion 82 are inclined upward from the inner end portion in the front-rear direction toward the outer end portion, and the inner handle portion is provided. The upper edges of the portion 81 and the outer handle portion 82 are inclined along the shape of the palm. As a result, when a hand is inserted into the inner handle portion 81 and the outer handle portion 82 and pulled up, it is easy to apply a force to the inner handle portion 81 and the outer handle portion 82.

In the packaging box 1A of the first embodiment, the inner handle portions 81 are opened in the front and rear lateral flaps 71 and 71, and the front and rear outer handle portions 82 and 82 of the upper flap 72 are overlapped on both inner handle portions 81 and 81, respectively. ing. By doing so, it is possible to prevent the pulling force from being applied to the portion where only the upper flap 72 between the front and rear lateral flaps 71 and 71 is arranged. Then, since the pulling force is applied to the portion where the upper flap 72 and the horizontal flap 71 are overlapped, the strength of the packaging box 1A against the pulling force can be increased.

In the packaging box 1A of the first embodiment, since a part of the outer handle portion 82 is closed by the lid plate 85, the amount of foreign matter that enters the inside of the packaging box 1 through the outer handle portion 82 and the inner handle portion 81. Can be reduced.

When opening the packaging box 1A of the first embodiment, first, as shown in FIG. 4, the lid piece 21 is pushed inward from the outside to open the opening start portion 41.
When the operator inserts his / her hand into the opening start portion 41 and pulls up the leading edge portion of the top plate 20, the cutting guide line L10 between the front end wall 40 and the top plate 20 is cut open.
At this time, at the left and right top ruled lines L20 and L20, the central portion of the top plate 20 bends upward with respect to the left and right side portions, and the central portion of the top plate 20 can be greatly pulled up, so that the cutting guide line L10 can be easily cut open. be able to.

Further, when the leading edge portion of the top plate 20 is pulled up, the left and right upper flaps 72 and 72 are peeled off from the left and right front lateral flaps 71 and 71.
Subsequently, when the top plate 20 is pulled toward the rear, the rear end wall 50 connected to the top plate 20 also tilts toward the rear.

When the left and right rear lateral flaps 71 and 71 are tilted rearward together with the rear end wall 50, the cutting guide line L2 between the rear lateral flap 71 and the second sticking portion 75 is cut open.
As a result, the second sticking portion 75 is separated from the lateral flap 71 on the rear side, and the second sticking portion 75 remains attached to the lower flap 73. In this way, the connection between the lateral flap 71 on the rear side and the lower flap 73 can be easily released.
Further, the rear end wall 50 is tilted rearward and the rear end wall 50 is peeled off from the joining piece 60 to release the connection between the bottom plate 30 and the rear end wall 50.

In this way, the top plate 20, the rear end wall 50, the upper flaps 72, 72 and the rear side side flaps 71, 71 are combined with the bottom plate 30, the front end wall 40, both lower flaps 73, 73, and the front side side flaps 71, 71. By separating from 71 and 71, the packaging box 1 can be divided into two parts and opened.

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 of the first embodiment.
In the packaging box 1A of the first embodiment, as shown in FIG. 1, the front and rear outer handle portions 82 and 82 are open, and the front and rear inner handle portions 81 and 81 are open, but the outer handle portions 82 and The number, arrangement, and shape of the inner handle portions 81 are not limited.

In the packaging box 1A of the first embodiment, the lower flap 73 is attached to the inner surface of both lateral flaps 71, 71, but the lower flap 73 may be attached to the outer surface of both lateral flaps 71, 71.

In the packaging box 1A of the first embodiment, the upper flap 72 and the lower flap 73 are arranged at intervals in the vertical direction, but the upper flap 72 and the lower flap 73 are butted against each other on the left and right sides of the body portion 10. The opening may be closed.

When the second attachment portion 75 of the horizontal flap 71 is formed small as in the blank sheet S2 shown in FIG. 5, it is possible to prevent the cutting guide wire L2 from being cut open when the horizontal flap 71 is bent. can.
Further, in the blank sheet S2 shown in FIG. 5, the upper opening 25 of the top plate 20 is formed in a substantially quadrangular shape, and the maximum width in the front-rear direction is reduced so that the top plate 20 is attracted to the transport device to transport the blank sheet S2. When doing so, the area that can be adsorbed can be increased.
Further, in the blank sheet S2 shown in FIG. 5, a zipper-shaped cutting guide portion 90 is formed at a portion of the rear end wall 50 overlapping the joint piece 60. By cutting open the cutting guide portion 90, the rear end wall 50 can be easily separated from the joining piece 60.

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

[Second Embodiment]
Next, the packaging box 1B of the second embodiment will be described. As shown in FIG. 6, the packaging box 1B of the second embodiment has substantially the same configuration as the packaging box 1A (see FIG. 1) of the first embodiment, and the upper portion of the lower flap 73 is the lower portion of the upper flap 72. The point that it is overlapped with is different.

The packaging box 1B of the second embodiment is formed by folding the blank sheet S3 shown in FIG. 7 in a mountain fold or a valley fold at each folding line. The blank sheet S3 shown in FIG. 7 is arranged so that the inner surface side can be seen.

As shown in FIG. 6, the packaging box 1B of the second embodiment is formed to be lower in height than the packaging box 1A (see FIG. 1) of the first embodiment.
The lower flap 73 of the packaging box 1B of the second embodiment is overlapped on the inner surface side of the front and rear lateral flaps 71 and 71. Further, in the second embodiment, the upper portion of the lower flap 73 extends upward from the lower edge portion of the upper flap 72. As described above, in the second embodiment, the upper portion of the lower flap 73 is overlapped with the inner surface side of the lower portion of the upper flap 72.

An inner handle portion 81 is opened in the middle portion in the height direction of the lateral flap 71 of the second embodiment. The inner handle portion 81 is a recess that is recessed outward from the inner edge portion of the lateral flap 71. The upper edge portion and the lower edge portion of the inner handle portion 81 are inclined upward from the inner end portion to the outer end portion.

The upper flap 72 of the second embodiment has two front and rear outer handle portions 82 and 82 open. The outer handle portion 82 is a recess that is recessed upward from the lower edge portion of the upper flap 72. The upper edge portion of the outer handle portion 82 is inclined upward from the inner end portion to the outer end portion.

The lower flap 73 of the second embodiment is formed with two front and rear lower handle portions 83, 83. The lower handle portion 83 is a hole portion penetrating the lower flap 73.
The upper edge of the lower lower handle 83 on the front side is inclined upward from the rear end toward the front end, and the upper edge of the lower handle 83 on the rear side is from the front end to the rear end. It is tilted upward.

In the packaging box 1B of the second embodiment, the outer portion of the lower handle portion 83 is overlapped with the inside of the inner handle portion 81. Further, the outer handle portion 82 is overlapped on the outer side of the upper part of the inner handle portion 81 and the lower handle portion 83. In this way, the outer handle portion 82, the inner handle portion 81, and the lower handle portion 83 communicate with each other in the inner and outer directions of the packaging box 1B.
Further, in the packaging box 1B of the second embodiment, the front and rear lower handle portions 83 and 83 are exposed between the front and rear lateral flaps 71 and 71.

When the packaging box 1B of the second embodiment is lifted, when a hand is inserted into the outer handle portion 82 and the lower handle portion 83, the lid plate 85 is pushed inward, and the lid plate 85 is the upper edge portion of the inner handle portion 81. And overlaps with the upper edge of the lower handle 83.
In this state, when the lower surface of the lid plate 85 is pulled up by hand, the pulling force acts on the outer handle portion 82, the inner handle portion 81, and the lower handle portion 83 in a substantially even manner. The strength against force can be increased.

In the packaging box 1B of the second embodiment, the upper edge portion of the inner handle portion 81, the upper edge portion of the outer handle portion 82, and the upper edge portion of the lower handle portion 83 are inclined along the shape of the palm. , It is easy to apply force to the inner handle portion 81, the outer handle portion 82, and the lower handle portion 83.

Although the second embodiment of the present invention has been described above, the present invention is not limited to the second embodiment, and can be appropriately modified without departing from the spirit of the first embodiment. Is.
As shown in FIG. 6, the lower handle portion 83 of the packaging box 1B of the second embodiment is a through hole formed in the lower flap 73, but the shape thereof is not limited, and for example, the lower flap The lower handle portion may be formed by a recess recessed downward from the upper edge portion of 73.

In the packaging box 1B of the second embodiment, the upper part of the lower flap 73 is overlapped on the lower part of the upper flap 72, but the lower flap 73 is overlapped on the outer surface side of both lateral flaps 71 and 71, and the lower part of the upper flap 72 is overlapped. The edge portion and the upper edge portion of the lower flap 73 may be butted against each other. In this case, the outer handle portion 82 is overlapped on the upper part of the inner handle portion 81, and the lower handle portion 83 is overlapped on the lower part of the inner handle portion 81.

1A packaging box (first embodiment)
1B packaging box (second embodiment)
10 Body 20 Top plate 21 Lid piece 25 Upper opening 30 Bottom plate 40 Front end wall 41 Opening start part 50 Rear end wall 60 Join piece 70 Side wall 71 Horizontal flap 72 Upper flap 73 Lower flap 74 Connecting flap 75 Second sticking part 81 Inner handle Part 82 Outer handle part 83 Lower handle part 85 Cover plate 90 Cut guide part L2 Cut guide line L10 Cut guide line L20 Top ruled line S1 Blank sheet (first embodiment)
S2 blank sheet (modification example of the first embodiment)
S3 blank sheet (second embodiment)

Claims (5)

A square tubular body with a top plate, bottom plate and front and rear end walls,
It has side walls provided at the left and right openings of the body portion, and has.
The side wall is
The front and rear horizontal flaps that are connected to both end walls, respectively,
The upper flap, which is connected to the top plate and is overlapped on both lateral flaps,
It is provided with a lower flap, which is connected to the bottom plate and is overlapped with the both lateral flaps.
The upper flap is attached to the outer surface of both lateral flaps.
The inner handle is opened in each of the front and rear horizontal flaps, and
The upper flap has two front and rear outer hooks that are open.
The both outer handle portions are recesses recessed upward from the lower edge portion of the upper flap.
A lid plate is arranged inside the outer handle portion, and the lid plate is arranged .
The both outer handle portions and the both lid plates are overlapped only on the outer side of the upper part of the both inner handle portions, respectively.
The upper edge portion of the lid plate is continuously provided with the upper edge portion of the outer handle portion via a polygonal line .
A packaging box characterized in that when the lid plate is pushed inward, the lid plate is configured to overlap the upper edge portion of the inner handle portion . The packaging box according to claim 1.
The front and rear horizontal flaps are packaging boxes characterized in that they are separated in the front-rear direction. The packaging box according to claim 1 or 2.
The lower flap is a packaging box characterized in that it is attached to the inner surface of both lateral flaps. The packaging box according to any one of claims 1 to 3.
A packaging box characterized in that the upper edge portion of the inner handle portion and the upper edge portion of the outer handle portion are inclined upward from the inner end portion in the front-rear direction toward the outer end portion. The packaging box according to any one of claims 1 to 4.
A packaging box characterized in that the lower flap has an opening of a lower handle portion that overlaps with the inner handle portion.

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