JP2023084961A - packaging box - Google Patents

Abstract

To provide a packaging box capable of vertically stacking a plurality of packaging boxes in a stable state even when the packaging boxes store objects.SOLUTION: A packaging box 1 includes side wall portions made up of four side plates 2-5, bottom portions made up of four flaps 6-9, and a support member 20. An upper end of the support member 20 is placed lower than an upper end of the side wall, and a boundary portion between two side plates is provided with a cut line c2 extending from an upper end toward a lower end side of the boundary portion.SELECTED DRAWING: Figure 7

Description

TECHNICAL FIELD The present invention relates to packaging boxes that are stacked vertically and used.

Conventionally, as a packaging box, the one described in Patent Document 1 is known. This packaging box includes four side plates arranged in a prism shape, four top wall flaps forming the top wall of the packaging box, and the like. Four notches are formed in the four corners of the upper end of the packaging box. Each notch is formed by circularly notching the upper end portion of the boundary between two adjacent side plates and the boundary portion between the top wall flap and the side plate.

In this packaging box, when the packaging box is in an empty state, a plurality of packaging boxes are vertically stacked with the top wall flap opened. At that time, in the lower packaging box, the top wall flap is held substantially parallel to the side plate, and the bottom of the upper packaging box is engaged with the edges of the four notches in the lower packaging box. (See FIG. 2 of the same document).

Utility Model Registration No. 3202257

According to the above-described conventional packaging box, when the packaging box is not in an empty state, but the contents are stored in the packaging box, the weight of the contents causes the four corners of the bottom of the upper packaging box and the lower side of the packaging box to move. There is a risk that the packaging box will become disengaged from the edge of the notch of the packaging box, and the packaging box will be tilted at an angle or fall downward. As a result, there is a problem that a plurality of packaging boxes cannot be stably stacked in the vertical direction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a packaging box in which a plurality of packaging boxes can be stacked vertically in a stable state even when the plurality of packaging boxes contain objects. intended to provide

In order to achieve the above object, the invention according to claim 1 provides a polygonal cylindrical side wall portion comprising three or more side plates, a bottom portion sealing the lower end of the side wall portion, and a support extending upward from the bottom portion. , wherein the upper end of the support portion is arranged below the upper end of the side wall portion, and the boundary portion between the two side plates adjacent to each other has a lower end side from the upper end of the boundary portion It is characterized by the fact that a cut line is provided toward.

According to this packaging box, the boundary between two side plates adjacent to each other is provided with a cut line extending from the upper end to the lower end of the boundary. , the bottom of the upper packaging box widens the gap between the side plates of the lower packaging box along the cut line, and is supported from below by the supporting portion of the lower packaging box. At this time, the upper end of the support is arranged below the upper end of the side wall so that the lower end of the side wall of the upper packaging box is laterally pushed by the upper end of the side wall of the lower packaging box. It is also supported by As described above, according to this packaging box, a plurality of packaging boxes can be vertically stacked in a stable state even when each of the plurality of packaging boxes contains an article. In this specification, the "boundary between two side plates" is defined as a boundary between two side plates or a region near the boundary including the boundary, and a predetermined distance from the boundary (for example, several to several tens of millimeters). It means the area to the distant part.

The invention according to claim 2 is the packaging box according to claim 1, wherein the cut line is a vertical line portion extending downward from the upper end of the border portion by a first predetermined length and adjacent to each other from the lower end of the vertical line portion. a horizontal line portion extending in the horizontal direction for a second predetermined length between the two mating side plates.

According to this packaging box, when a plurality of packaging boxes are stacked in the vertical direction, the borders of the side plates of the lower packaging box are separated by the corners of the bottom of the upper packaging box. It will be pushed out along the horizontal line. At this time, since the horizontal line portion of the cut line extends in the horizontal direction by the second predetermined length between the two side plates, the bottom corner portion of the upper packaging box can easily fit between the two side plates, It is possible to easily stack a plurality of packaging boxes. Furthermore, during the stacking operation, even if part of the side plate of the lower packaging box is broken by the bottom of the upper packaging box in the left-right direction along the horizontal line of the cut line, it is broken only in the horizontal direction. Therefore, the upper packaging box does not assume an oblique posture, and a plurality of packaging boxes can be stably stacked in the vertical direction.

The invention according to claim 3 is characterized in that, in the packaging box according to claim 2, the lower end of the vertical line portion is configured to have a height equal to or lower than the upper end of the support portion.

According to this packaging box, since the lower end of the vertical line portion of the cut line is configured to be lower than the upper end of the support portion, when a plurality of packaging boxes are stacked vertically, the upper end The bottom part of the packaging box is mainly supported from below by the support part of the lower packaging box. As a result, it is possible to avoid excessive load acting on the edge of the horizontal line of the cut line of the lower packaging box, and suppress the deformation of the packaging box when multiple packaging boxes are stacked vertically. can do.

The invention according to claim 4 is the packaging box according to any one of claims 1 to 3, which has a first support part and a second support part, and the first support part and the second support part are flat. It is characterized by being configured to bend or curve relative to each other when viewed.

According to this packaging box, when a plurality of packaging boxes are stacked vertically, the bottom of the upper packaging box is supported from below by the supporting portion of the lower packaging box. At that time, since the first support portion and the second support portion of the support portion are configured to bend or curve relative to each other when viewed from above, the first support portion and the second support portion of these support portions , can stably support the upper packaging box.

The invention according to claim 5 is the packaging box according to any one of claims 1 to 4, wherein at least one side plate of the three or more side plates extends downward from a middle portion in the left-right direction of the upper end of at least one side plate. It is characterized by having a window portion that is notched in a convex shape.

According to this packaging box, since at least one of the side plates has a window portion that is convexly cut downward from the middle portion in the left-right direction of the upper end of the side plate, when a plurality of packaging boxes are stacked, However, the items stored in the packaging box can be checked from the outside through this window.

It is a perspective view which shows the sealed state of the packaging box which concerns on one Embodiment of this invention. It is an enlarged view of the A section of FIG. It is a top view which shows the structure before the assembly of a packaging box. It is a top view which shows the structure before assembly of a support member. 5A is a perspective view showing a state in which the packaging box is assembled, FIG. 5B is a perspective view showing a state in which the support member is folded in two, and FIG. 5C is a perspective view showing a state in which the folded support member is stored in the packaging box. It is a diagram. FIG. 4 is a perspective view showing a state in which the storage items and the supporting member are stored in the packaging box; It is a perspective view which shows the state which opened the packaging box. It is a front view which shows the state which stacked the packaging box of the unsealed state in the up-down direction. It is a perspective view which shows the state which stacked the packaging box of the unsealed state in the up-down direction. FIG. 10 is an enlarged view of a portion B of FIG. 9;

A packaging box according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the packaging box 1 of the present embodiment is a so-called A-type cardboard box type having a rectangular parallelepiped appearance.

In the case of this packaging box 1, it is sealed with the support member 20 and the contents S housed inside (see FIG. 6), and the box is partially broken when opened (see FIG. 7).

The packaging box 1 is assembled by punching out a substantially rectangular corrugated board 1x shown in FIG. 3 from a base paper, and then folding it. Hereinafter, the configuration of the corrugated board 1x will be described with reference to FIG. In the following description of the corrugated board 1x, for convenience, the vertical direction in FIG.

As shown in FIG. 3, the corrugated paperboard 1x comprises a left side plate 2, a front side plate 3, a right side plate 4 and a rear side plate 5. As shown in FIG. These four side plates 2 to 5 are all rectangular in plan view and integrally formed, and have the same length in the vertical direction. In the case of the packaging box 1 of the present embodiment, these four side plates 2 to 5 form a rectangular cylindrical side wall portion.

A pair of upper and lower outer flaps 6 , 6 are continuously provided at the upper and lower ends of the left side plate 2 . Each of these outer flaps 6 , 6 is formed in a rectangular shape in plan view, and the length in the left-right direction is set slightly shorter than that of the left side plate 2 . The vertical length of each outer flap 6 is the same as that of an outer flap 8 and inner flaps 7 and 9, which will be described later, and is set to approximately half the length of the front side plate 3 in the horizontal direction. .

A fold line f1 and a part of the breakable line c1 are formed at the boundary between the left side plate 2 and the upper outer flap 6, and a fold line f2 is formed at the boundary between the left side plate 2 and the lower outer flap 6. there is These folding lines f1 and f2 are ruled lines (or perforated lines) for facilitating folding of the corrugated paperboard 1x, and the same applies to other folding lines described later.

Further, the fold line f1 extends in the left-right direction for a predetermined length at the center in the left-right direction of the boundary line between the left side plate 2 and the upper and outer flaps 6 . The breakable line c1 extends between both left and right ends of the boundary line between the left side plate 2 and the upper and outer flaps 6 and both ends of the fold line f1, and extends downward from both ends of the fold line f1 in a trapezoidal shape. there is This breakable line c1 is composed of perforation lines for facilitating folding and breaking of the corrugated board 1x, and the same applies to other breakable lines described later.

In addition, the breakable line c1 has a shape in which it branches into two at the center of its lower part and then merges into one, and the part surrounded by these two branched breakable lines c1 is , when the packaging box 1 is unpacked, it is torn to form a finger insertion portion 2a into which an operator can insert his or her finger. As will be described later, when the packaging box 1 is unpacked, the left side plate 2 is broken along the breakable line c1, so that the left side plate 2 has a window portion 2b (only a part of which is shown in FIG. 7). It is formed.

On the other hand, an adhesive piece 10 is continuously provided at the left end portion of the left side plate 2 via a fold line f3, and the adhesive piece 10 is formed in a trapezoidal shape in plan view. A cut line c2 is provided at the boundary between the upper end of the adhesive piece 10 and the upper end of the left side plate 2. As shown in FIG.

The cut line c2 is formed in a substantially inverted T shape, and has a vertical line portion c21 and a horizontal line portion c22 (see FIG. 2). The vertical line portion c21 extends downward from the upper end of the boundary line between the front side plate 3 and the right side plate 4 by a first predetermined length. 4 laterally for a second predetermined length. The lower end of this vertical line portion c21 is set to be below the upper end of the support member 20 when the support member 20, which will be described later, is accommodated in the packaging box 1. As shown in FIG.

This cut line c2 is the boundary between the upper end of the adhesive piece 10 and the upper end of the left side plate 2, the boundary between the upper end of the left side plate 2 and the upper end of the front side plate 3, and the upper end of the right side plate 4. They are also provided at the boundary with the upper end of the rear side plate 5 .

A front side plate 3 is connected to the right end of the left side plate 2 via a folding line f4. The front side plate 3 has the same length in the vertical direction as the left side plate 2 and has a shorter length in the lateral direction than the left side plate 2 .

A pair of upper and lower inner flaps 7 , 7 are continuously provided at upper and lower ends of the front side plate 3 . Each of these inner flaps 7 , 7 is formed in a rectangular shape in plan view, and the length in the left-right direction is set slightly shorter than that of the front side plate 3 . A part of the breakable line c3 and a folding line f5 are formed at the boundary between the front side plate 3 and the upper inner flap 7, and a folding line f6 is formed at the boundary between the front side plate 3 and the lower inner flap 7. .

The fold line f5 extends in the left-right direction for a predetermined length at the center in the left-right direction of the boundary line between the front side plate 3 and the upper inner flap 7 . The breakable line c3 extends between the left and right ends of the boundary line between the front plate 3 and the upper and outer flaps 6 and both ends of the fold line f5, and extends downward from both ends of the fold line f5 in a trapezoidal shape. there is

In addition, the breakable line c3 has a shape that branches into two at the center of the lower part and then merges into one, and the part surrounded by these two branched breakable lines c3 is , when the packaging box 1 is unpacked, it is torn to form a finger-insertion part 3a into which an operator can insert his/her finger.

When the packaging box 1 is unpacked, as will be described later, the front side plate 3 is broken along the breakable line c3 to form a window portion 3b (see FIG. 7) in the front side plate 3. The window portion 3b has a trapezoidal shape that protrudes downward from an intermediate portion of the upper end of the front side plate 3 (a portion near the center at a predetermined distance from both left and right ends of the upper end).

A right side plate 4 is connected to the right end of the front side plate 3 via a folding line f7. The right side plate 4 has the same size as the left side plate 2 and is plane-symmetrical. A pair of upper and lower outer flaps 8, 8 are continuously provided at the upper and lower ends of the right side plate 4, and these outer flaps 8, 8 are constructed in the same manner as the outer flaps 6, 6 described above. .

Further, a part of the breakable line c4 and a folding line f8 are formed at the boundary between the right side plate 4 and the upper outer flap 8, and a folding line f9 is formed at the boundary between the right side plate 4 and the lower outer flap 8. ing. These folding lines f8 and f9 are configured in the same manner as the folding lines f1 and f2 described above.

Further, the breakable line c4 is configured in the same manner as the breakable line c1. That is, the breakable line c4 extends downward from both ends of the fold line f8 in a convex trapezoidal shape, and has a shape that branches into two at the center of the lower end and then merges into one. . A portion surrounded by these two branched breakable lines c4 is a finger insertion portion 4a into which an operator breaks and inserts a finger when unpacking the packaging box 1. As shown in FIG.

When the packaging box 1 is unpacked, as will be described later, the right side plate 4 is broken along the breakable line c4 to form a trapezoidal window portion 4b (see FIG. 7) in the right side plate 4. . The window portion 4b has a trapezoidal shape that protrudes downward from the middle portion of the upper end of the right side plate 4 (a portion near the center at a predetermined distance from both left and right ends of the upper end).

A rear plate 5 is connected to the right end of the right side plate 4 via a folding line f10. The rear side plate 5 has the same size as the front side plate 3, and a pair of upper and lower inner flaps 9, 9 are connected to the upper and lower ends of the rear plate 5 via a breakable line c5 and a folding line f11. ing. Each of these inner flaps 9, 9 has the same size and shape as the inner flap 7 described above.

Next, the support member 20 will be described with reference to FIG. The support member 20 is made of corrugated paperboard, and as will be described later, when the packaging box 1 is sealed, it is folded into a U-shape in plan view and accommodated in the packaging box 1 . In the following description of the support member 20, for the sake of convenience, the vertical direction in FIG.

As shown in the figure, the support member 20 is composed of an outer portion 21 , an inner portion 22 and a connecting portion 23 . The outer portion 21 is a portion positioned on the outside when the support member 20 is folded into a U shape in plan view, and is formed in a horizontally long rectangular shape in plan view.

The outer portion 21 includes a central portion 21a and left and right bent portions 21b and 21b, which are both rectangular in plan view. 21a are connected to the left and right ends thereof. In addition, in this embodiment, the center portion 21a corresponds to the first support portion, and the bent portions 21b and 21b correspond to the second support portion.

In addition, the inner portion 22 is a portion positioned inside when the support member 20 is folded into a U shape in plan view, and is formed in a horizontally long rectangular shape in plan view. The inner portion 22 has the same length in the vertical direction as the outer portion 21 and has a slightly shorter length in the horizontal direction.

The inner portion 22 includes a central portion 22a and left and right bent portions 22b, 22b, which are both rectangular in plan view. 22a are connected to the left and right ends thereof. In addition, in this embodiment, the central portion 22a corresponds to the first support portion, and the bent portions 22b and 22b correspond to the second support portion.

Further, the connecting portion 23 is connected between the central portion 21a of the outer portion 21 and the central portion 22a of the inner portion 22 via a pair of folding lines f23, f23. The connecting portion 23 is formed to have a horizontally long rectangular shape in a plan view, the length in the vertical direction being considerably shorter than that of the outer portion 21 and the inner portion 22, and the length in the horizontal direction being the same as that of the central portion 22a of the inner portion 22. .

Next, a procedure for assembling the packaging box 1 shown in FIG. 1 using the corrugated board 1x shown in FIG. 3 and the support member 20 shown in FIG. 4 will be described. In the following description, the direction indicated by arrows X1-X2 in FIG. 1 is referred to as "front-rear direction", the direction indicated by arrows Y1-Y2 is referred to as "left-right direction", and the up-down direction is referred to as "vertical direction".

First, the worker folds the left side plate 2 of the corrugated paperboard 1x in the assembling direction so as to be perpendicular to the front side plate 3 via the folding line f4. The "assembly direction" in this case is the direction in which all four side plates 2 to 5 in FIG.

Furthermore, the front side plate 3 is bent in the assembly direction so as to be perpendicular to the right side plate 4 via the folding line f7, and the right side plate 4 is perpendicular to the rear side plate 5 via the folding line f10. It is bent in the assembly direction so that

Next, the adhesive piece 10 is bent in the assembly direction with respect to the left side plate 2 via the folding line f3, and then fixed to the rear side plate 5 via an adhesive. After that, the lower inner flap 7 is folded toward the inside of the packaging box 1 so as to be perpendicular to the front side plate 3 via the folding line f6, and the lower inner flap 9 is folded via the folding line f11, It is bent toward the inside of the packaging box 1 so as to be perpendicular to the rear side plate 5. - 特許庁

Then, after the lower outer flap 6 is folded toward the inside of the packaging box 1 so as to be perpendicular to the left side plate 2 via the folding line f2, the lower inner flap 7, affixed to the surface of 9; Furthermore, after the lower outer flap 8 is folded toward the inside of the packaging box 1 so as to be perpendicular to the right side plate 4 via the folding line f9, the lower inner flap 7, affixed to the surface of 9;

As described above, the packaging box 1 in the state shown in FIG. 5A is created. In the case of the packaging box 1 shown in FIG. and the upper and outer flaps 6 and 8 are opened.

Next, as shown in FIG. 5B, the worker bends the outer portion 21 and the inner portion 22 of the support member 20 with respect to the connecting portion 23 via the pair of folding lines f23 and f23, and the support member 20 is folded. However, the connecting portion 23 is positioned upward.

Furthermore, as shown in FIG. 5C, in the support member 20, the left and right bent portions 22b, 22b of the inner portion 22 are arranged in a U-shape in plan view with respect to the central portion 22a via a pair of folding lines f22, f22. It is folded at a right angle so that it becomes At the same time, the left and right bent portions 21b, 21b of the outer portion 21 are bent at right angles to the central portion 21a via a pair of folding lines f21, f21 so as to form a U-shape in plan view.

The support member 20 is stored in the packaging box 1 after being bent as described above. After that, the stored article S is stored in the packaging box 1 in the state shown in FIG. 6, for example. In the packaging box 1 in the state shown in FIG. 6, after the upper inner flaps 7 and 9 are closed, the upper outer flaps 6 and 8 are fixed to the upper inner flaps 7 and 9, whereby the sealing shown in FIG. The packaging box 1 in the state is completed.

When opening the sealed packaging box 1 shown in FIG. 1, an operator presses the finger insertion portions 2a, 4a of the left and right side plates 2, 4 inward with the fingers of both hands, and pulls them along the breakable line c1, Insert the fingers of both hands into the packaging box 1 while breaking through c4, and break the left and right side plates 2, 4 along the breakable lines c1, c4 in this state.

By the same procedure as above, the operator breaks the front side plate 3 along the breakable line c3, and further breaks the rear side plate 5 along the breakable line c5. By the above operation, the packaging box 1 is opened as shown in FIG. When the packaging box 1 is opened in this manner, the front side plate 3 is formed with a trapezoidal window 3b in front view, and the left and right side plates 2 and 4 are formed with trapezoidal windows 2b and 4b in side view, respectively. be done.

In this unsealed state, one stored item S is stored in the gap between the support member 20 and the front side plate 3, so that this stored item S can be viewed through the window 3b of the front side plate 3. become visible. Similarly, a plurality of stored items S are visible through the windows 2b, 4b of the left and right side plates 2, 4. As shown in FIG.

In the case of the packaging box 1 of this embodiment, as shown in FIGS. 8 and 9, a plurality of (three in the figure) unsealed packaging boxes 1 can be vertically stacked. It should be noted that in FIG. 8, the stored items S are omitted for easy understanding. When the packaging boxes 1 are stacked in this manner, the bottom of the upper packaging box 1 is supported by the upper surface of the U-shaped support member 20 in plan view. At the same time, as shown in FIGS. 9 and 10, the corners of the bottom of the upper packaging box 1 push open the vertical line portions c21 of the cut lines c2 at the four corners of the lower packaging box 1, and push open the horizontal lines. It will be in a state of being supported from below by the portion c22.

As described above, according to the packaging box 1 of the present embodiment, when a plurality of unsealed packaging boxes 1 are stacked vertically, the corners of the bottom of the upper packaging box 1 are aligned with the lower packaging box 1. While expanding the interval between the side plates along the vertical line portion c21 of the cut line c2, it easily enters into the packaging box 1 on the lower side. In addition to this, the upper end of the support member 20 is arranged below the upper ends of the left, right, front and rear side plates 2 to 5, so that the lower end of the bottom of the upper packaging box 1 It is laterally supported by the upper end portions of the left, right, front and rear side plates 2 to 5.

Furthermore, since the inner part 22 and the outer part 21 of the support member 20 are stored in the packaging box 1 in a U-shaped state in plan view, the inner part 22 of the support member 20 is stored in the upper packaging box 1. and the outer portion 21 to support it in a stable state. As described above, according to this packaging box 1, even when each of the plurality of packaging boxes 1 contains a stored article S, the plurality of packaging boxes 1 can be stably stacked in the vertical direction.

In addition, since the lower end of the vertical line portion c21 of the cut line c2 is set to be lower than the upper end of the support member 20, when a plurality of packaging boxes 1 are stacked vertically, the upper packaging box The bottom of the box 1 is mainly supported from below by the support member 20 of the packaging box 1 on the lower side. As a result, it is possible to avoid applying an excessive load to the edge of the horizontal line portion c22 of the cut line c2 of the lower packaging box 1, so that when a plurality of packaging boxes 1 are vertically stacked, 1 deformation can be suppressed.

In addition, since the windows 2b to 4b are formed in the three side plates 2 to 4 of the unsealed packaging box 1, even when a plurality of packaging boxes 1 are stacked, they can be opened through these windows 2b to 4b. , the stored article S in the packaging box 1 can be confirmed from the outside. Thereby, high convenience can be secured.

When stacking a plurality of unsealed packaging boxes 1 in the vertical direction, a plate-like member is interposed between the bottom of the upper packaging box 1 and the support member 20 of the lower packaging box 1. You may With this configuration, the stability when a plurality of packaging boxes 1 are vertically stacked can be further improved, and the stored items S in the lower packaging box 1 can be protected.

In addition, although the embodiment is an example in which the vertical line portion c21 and the horizontal line portion c22 are provided as the cut line, the cut line of the present invention is not limited to this, and at least the vertical line portion c21 is provided. Just do it. In that case, by providing a V-shaped fold line extending from the lower end of the vertical line portion c21 to the upper end of two adjacent side plates, the side plates can be folded along the V-shaped fold line when the packaging boxes 1 are stacked. It is possible to prevent bending and crushing of the upper end of the boundary.

Further, the embodiment is an example of using the packaging box 1 with upper inner flaps 7, 9 and upper outer flaps 6, 8 as the packaging box, and the top wall is formed by these flaps at the time of sealing, but the present invention. The packaging box is not limited to this, and may have a polygonal cylindrical side wall, a bottom that seals the lower end of the side wall, and a support that extends upward from the bottom. For example, in the packaging box 1 of the embodiment, the upper inner flaps 7, 9 and the upper outer flaps 6, 8 may be omitted.

Furthermore, the embodiment is an example of using a rectangular cylindrical side wall as the side wall, but the side wall of the present invention is not limited to this, and may be a polygonal cylindrical side wall made up of three or more side plates. . For example, the side wall portion may have a triangular tubular shape composed of three side plates, or may have a square or polygonal tubular shape composed of four or more side plates.

Moreover, although the embodiment is an example in which the support member 20 as a support portion is configured separately from the packaging box 1 , the support member 20 may be configured integrally with the packaging box 1 instead. In that case, the support member 20 may be configured to be integrally connected to the corrugated board 1x.

Furthermore, the embodiment is an example of using the supporting member 20 deformed into a U-shape in plan view as the supporting portion, but the supporting portion of the present invention is not limited to this, and the first supporting portion and the second supporting portion It is sufficient that the first supporting portion and the second supporting portion are configured to bend or curve relative to each other when viewed from above. For example, as the supporting portion, the first supporting portion and the second supporting portion are arranged in a T shape or an X shape in plan view, or the first supporting portion and the second supporting portion are arranged in an S shape in plan view. You can also use another one.

On the other hand, the embodiment is an example using the trapezoidal windows 2b to 4b. It may be any shape as long as it has a chipped shape. For example, the window may be configured in a triangular, rectangular, circular or curvilinear shape.

1 packaging box 2 left side plate (side wall)
2b window portion 3 front side plate (side wall portion)
3b window portion 4 right side plate (side wall portion)
4b window portion 5 rear side plate (side wall portion)
6 lower outer flap (bottom)
7 lower inner flap (bottom)
8 lower outer flap (bottom)
9 lower inner flap (bottom)
20 support member (support part)
21a central part (first support part)
21b bending portion (second support portion)
22a central part (first support part)
22b bending portion (second support portion)
c2 cut line c21 vertical line c22 horizontal line

Claims (5)

a polygonal cylindrical side wall portion composed of three or more side plates;
a bottom that seals the lower end of the side wall;
a support portion extending upward from the bottom portion, the packaging box comprising:
The upper end of the support portion is arranged below the upper end of the side wall portion,
A packaging box, wherein a cut line is provided in a boundary portion between two side plates adjacent to each other from an upper end to a lower end side of the boundary portion. In the packaging box according to claim 1,
The cut line includes a vertical line portion extending downward from the upper end of the boundary portion for a first predetermined length, and a horizontal line portion extending from the lower end of the vertical line portion to the adjacent two side plates for a second predetermined length. A packaging box characterized by having a horizontal line portion extending at a. In the packaging box according to claim 2,
The packaging box, wherein the lower end of the vertical line portion is configured to have a height equal to or lower than the upper end of the support portion. In the packaging box according to any one of claims 1 to 3,
The support section has a first support section and a second support section, and the first support section and the second support section are configured to bend or curve relative to each other when viewed from above. A packaging box characterized by In the packaging box according to any one of claims 1 to 4,
At least one side plate of the three or more side plates has a window portion that is convexly cut downward from an intermediate portion in the left-right direction of the upper end of the at least one side plate. packaging box.

Images