JPH08151036A - Case - Google Patents

Abstract

PURPOSE: To easily fold up a used case so as to reduce its volume by a method wherein a flap is torn off from a weakening part provided on at least one side of the flap to leave the bottom of the case open. CONSTITUTION: When a used packaging case 1A is discarded, a tab provided projecting from the end of a flap 36 is held between the fingers and pulled to cause the tearing of the case to take place along a first cutting guide line 72A and a second cutting guide line 73A at the same time, thereby forming a gap between the cutting guide lines 72A and 73A to such an extent as to permit insertion of the finger. The finger is inserted into the gap and moved along the cutting guide line 72A to easily tear the flap 36 off from a cut made along the cutting guide line 72A. By this tearing, the bottom part of the packaging case 1A is left open, the case can be folded up along folding lines 41 and 43 for a change from a cubic form to a flat form and the volume of the packaging case 1A can be brought close to zero. When the cases are stacked in this condition, empty cases can be efficiently stored, discarded and treated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box which can be easily folded in a used state and whose volume can be reduced.

[0002]

2. Description of the Related Art In recent years, environmental problems have become serious and awareness of the natural environment has increased. Even in business activities,
Companies are obliged to take the necessary measures to prevent pollution and preserve the natural environment, encourage the development of products that will not cause environmental pollution even if they are discarded, and their impact on the environment. Is required to provide information about. In addition, consumers are also interested in improving the efficiency of waste disposal and recycling.

Under such a background, many packaging boxes used for packaging sweets, medicines, etc. are made of recyclable paper, and after being used as packaging boxes, they are further recycled as recycled paper. It is available. In order to reuse such paper in ordinary households, it is common to hand it to a recycling company together with newspapers.

[0004]

As described above, when a used packaging box is disposed, it is bulky in an empty box state. Therefore, the volume can be reduced by crushing or disassembling the box. Reduction (volume reduction) is desired. However, simply crushing the box is not enough to reduce the volume, and in order to disassemble the box, it is necessary to peel off the glued part and break it with hands or scissors, which is troublesome and troublesome. is there.

Further, even when a used empty box is discarded without recycling, the empty box is reduced in volume before disposal in order to improve the efficiency of transportation and processing of the waste. Is preferred.

In view of the above circumstances, an object of the present invention is to provide a box whose volume can be easily reduced at the time of disposal.

[0007]

The above object can be achieved by the present invention described below.

(1) An even number of side surface members connected in a loop through folds, and a flap foldably connected to each end of one side of the pair of opposed side surface members. A hexahedron-shaped box having a bottom portion by folding and connecting the flaps to each other, and providing a fragile portion on at least one of the flaps,
A box wherein the flap can be broken at the fragile portion to open the bottom portion.

(2) A foldable continuous member is provided on one side edge of one of the pair of side members facing each other, and an even number of side members which are continuously connected in a loop through a fold line. A box having a hexahedron shape, the bottom part of which is formed by folding the flap and connecting the tip of the flap to one side of the other side member. A box characterized in that a fragile portion can be provided at the connection position of the above, and the bottom portion can be opened by breaking the flap at the fragile portion.

(3) An even number of side members arranged in a loop through folds, and a flap foldably connected to each end of one side of the pair of facing side members. A hexahedron-shaped box having a bottom portion by folding each of the flaps and adhering the flaps to each other, wherein one of the flaps has an adhesive portion for adhering the flaps to each other. The box is characterized in that a fragile portion is provided at a position surrounding the adhesive portion, and the flap can be broken at the fragile portion to open the bottom portion.

(4) The box according to any one of the above (1) to (3), wherein the fragile portion has a first cutting guide line formed by arranging a plurality of cuts.

(5) The first cutting guide line is formed from one end side to the other end side of the flap.
Or the box described in (2).

(6) Further, a second cutting guide line is provided alongside the first cutting guide line, and the second cutting guide line is formed from the edge side on the side of the start of break to the middle of the flap. The box according to (5) above.

(7) The first cutting guide wire is provided at a folding base end of the flap, and a hole forming portion having a plurality of cuts is connected to the first cutting guide wire. The box according to (5) above.

(8) An even number of side members arranged in a loop through folds, and a flap foldably connected to each of the opposite side edges of the pair of side members facing each other. A box having a hexahedron shape having an adhesive part for adhering each flap to each other, and forming a bottom part by folding each flap and adhering it at the adhesive part. A box characterized in that a cut portion is provided in the positioned flap in the vicinity of the adhesive portion, and the cut portion serves as a peeling opening of the adhesive portion.

(9) An even number of side members that are continuously connected in a loop through folds, and a flap that is foldably connected to each of the opposite side edges of the pair of side members that face each other. A box having an adhesive portion for adhering the flaps to each other, the bottom portion being formed by folding the flaps and adhering the flaps at the adhering portion, the adhering portion being the tip side of the flap located outside. A box provided in the vicinity thereof, wherein the flap located on the outer side is provided with a pushing portion for pushing the bottom portion from the outer side to the inner side of the box to remove the adhesive portion.

(10) An even number of side members arranged in a loop through folds, and a flap foldably connected to an end of one of the pair of side members facing each other. A sack that is connected to the tip side of the flap and that is inserted inside the other side member during assembly, and an adhesive portion that is provided on the sack and that bonds the flap and the other side member to each other. A box having a bottom formed by folding each of the flaps and adhering the flaps with each other at the adhesive portion, the adhesive portion being provided in the vicinity of an end side of the other side member positioned outside, and the other side surface The box is characterized in that the material is provided with a pushing portion for pushing the bottom portion from the outside to the inside of the box to peel off the adhesive portion.

(11) The box according to any one of (1) to (10), wherein the number of the side surface members is four or more.

[0019]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a development view of a packaging box 1A according to the first embodiment of the present invention. The packaging box 1A includes four side surface members 21 to 24 and eight flaps 31 to 38 that are continuously provided on the end sides of the side surface members 21 to 24, respectively.

Side material 21, side material 23 and side material 22
The side members 24 and the side members 24 have the same shape and are alternately arranged so as to form opposing surfaces in the assembled state. Folds 41, 42, 43 are provided between the side members 21 to 24, and a margin 241 is provided on the edge of the side member 24 via a fold 44.
Is provided. The four sides of the packaging box 1A are configured by folding each of the fold lines 41 to 44 at a right angle and bonding the seam allowance 24 to the end of the side surface member 21 to form a loop.

On the other hand, in the side members 21 to 24, the flaps 3 are respectively provided on the end sides orthogonal to the fold lines 41 to 44.
1 to 38 are arranged in series. These flaps 31-3
Reference numerals 8 constitute an opening and a bottom of the packaging box, respectively, and are provided with an inner flap and an outer flap. The side flaps 21, 23 have inner flaps 31, 33,
35, 37 are provided, and the side members 22, 24 are provided with outer flaps 32, 34, 36, 38. The inner flap is a flap that is folded inward when it is assembled into a box, and the outer flap is a flap that is located outside of the inner flap and is bonded to each other to be in a connected state. The outer flaps 34, 38 are glued and the outer flaps 32, 36 are glued. Outer flap 38
The glued portion 8A is a glued portion formed by applying glue to the glued portion 8A and bonding the outer side flap 36 on the facing surface.

The flaps 31 to 34 are flaps provided on the opening side, and the flaps 35 to 38 are flaps forming the bottom of the packaging box 1A. The packaging box 1A is
In a state where the glue allowance 241 and the side surface member 21 are attached to each other, the article to be packaged is accommodated, and the unwrapped side and the bottom side flap are closed to assemble the packaged state.

On the opening side, the inner flaps 31, 33 are first
And fold the outer flap 34 over the inner flaps 31, 33 so that the outer flap 34 is folded inward. At a position close to the fold 54, glue is applied in parallel with the fold 54, and the outer flap 32 is overlaid thereon. Glue.

The bottom portion is also constructed by folding in the same procedure. That is, first, the inner flaps 35 and 37 are folded inward, and then the outer flap 38 is folded.
The sheets 5 and 37 are overlaid and folded, and the glued portion 8A is coated with glue, and the outer flap 36 is overlaid and glued on the glued portion 8A. By configuring as above, the packaging box 1A
Is assembled.

The outer flap 32 is provided with an unsealing portion 6 by a zipper type cutting portion formed by arranging notches 61 at predetermined intervals. A knob 62 is provided at an end portion of the opening portion 6 so as to project from an end side of the flap 32. The opening portion 6 is cut off by gripping the knob 62 and pulling the flap 32. It is divided into a side and a side adhered to the flap 34 to be in an opened state.

After opening, the projection 341 provided on the flap 34 can be inserted into the slit 321 of the flap 32 to be in a closed state. The outer flap 36 forming the bottom portion is provided with a fragile portion 7A formed by arranging the notches 71A at predetermined intervals. Fragile part 7A
Is a cut 71 from one side of the flap 36 to the other side.
A first cutting guide line 72A formed by disposing A
And the second with the cutout 71A arranged from one end to the middle
And a cutting guide line 73A. This cutting guide line has a plurality of cuts 71A when the flap 36 is broken.
Notches 7 are formed by the intermittent breakage of the space between
The breaking direction is guided along the arrangement direction of 1A, and the breaking is easy with a small force.

On the other hand, a knob 74A is provided so as to project from the end side of the flap 36. When the knob 74A is pinched and pulled in the direction of arrow a in FIG. 1, the first cutting guide line 72A and the second cutting guide line 73A are simultaneously broken, and the first cutting guide line 72A and the second cutting guide line 73A are broken. Between
A gap is formed so that a finger can be inserted. As shown in FIG. 2, by inserting a finger into this gap and moving the finger along the first cutting guide line 72A, along the cut 71A of the first cutting guide line 72A, The flap 36 can be easily cut. By this cutting, the bottom of the packaging box 1A is opened, and as shown in FIG. 3, the fold lines 41, 43 (or the fold line 4).
2, 44), it can be folded to change from a three-dimensional shape to a flat shape, and the volume of the packaging box 1A can be made almost zero (hereinafter referred to as "volume reduction"). If stacked in this state, the empty boxes of the used packaging boxes 1A can be efficiently stored, discarded and processed.

In the above embodiment, since the flap 36 can be easily divided by the weakened portion 7A, the packaging box 1
A can be rapidly changed from a rectangular parallelepiped state to a crushed state. In addition, there is no need for a tool for that purpose, and it is not necessary to apply a particularly large force to the empty box to crush it.

The structure of the fragile portion 7A provided on the bottom, that is, the flap 36 is not limited to the structure of the first embodiment.
In other embodiments described below, only the structure of the fragile portion is first.
Since it is different from the embodiment, the description of the configuration of other parts will be omitted.

FIG. 4 is a development view of the packaging box 1B of the second embodiment. The fragile portion 7B provided on the flap 36 is
A first cutting guide wire 72B formed by arranging a cut 71B from one end to the other end of the flap 36;
And a second cutting guide line 73B formed in parallel with the cutting guide line 72B. A knob 74B is provided between one end of the first cutting guide wire 72B and one end of the second cutting guide wire 73B. Further, the other end of the second cutting guide wire 73B is formed with a connecting portion 75B in which the cut 71B is not provided.

In order to reduce the volume of the packaging box 1B in the above configuration, the knob 74B is pinched and pulled from one end of the fragile portion 7 toward the other end (direction of arrow b in the figure). It is cut along the cutting guide lines 72B and 73B to form a strip-shaped cutting piece 76B whose both sides are cutting sides of the cutting guide lines 72B and 73B. Cutting guide line 72
When cutting B and 73B, the first cutting guide line 72B
Is completely cut to the other end. As a result, the packaging box 1B
The bottom portion of the is open, and the volume can be easily reduced as shown in FIG.

On the other hand, the connecting portion 7 is connected to the second cutting guide wire 73B.
Since 5B is provided, the cut piece 76B is not completely cut off and remains connected to the flap 36. Therefore, the cut pieces 76B do not become dust and the packaging box 1
Since it is processed integrally with B, it is possible to prevent scattering of dust.

FIG. 5 is a development view of the packaging box 1C of the third embodiment. In the packaging box of this embodiment, the fragile portion 7C is provided at the fold line 56 between the flap 36 and the side surface member 22. The fragile portion 7C has a first cutting guide wire 72C and a hole forming portion 73C.

The first cutting guide line 72C is connected to the flap 36.
A plurality of cuts 71C are provided along the fold line 56 located at the base end of the folding, as if they were perforations. In addition, the hole forming portion 7
3C is located in the approximate center of the first cutting guide line 72C and has a plurality of cuts 7 arranged in a mountain shape on the side surface member 22 side.
It is composed of 1C. The hole forming portion 73C is the first
Cutting portion 731 positioned on an extension line of the cutting guide wire 72C
C, a cutting portion 732C located on the slope on one side of the mountain-shaped portion, and a fold line 733C located on the slope on the other side of the mountain-shaped portion.

In the above structure, when the fragile portion 7C is broken, a finger is thrust into the hole forming portion 73C. As a result, the cutting portion 731C and the cutting portion 732C are broken, and the triangular cutting piece 74C formed by this breaking is pushed into the finger and bent at the fold line 733C. As a result, the cut piece 74C is folded into the back side of the side surface member 22, and a hole is formed in the central portion of the first cutting guide wire 72C. Next, when the inserted finger is moved in the left-right direction from the hole forming portion 73C along the first cutting guide line 72C, it is easily broken by the notch 71C of the first cutting guide line 72C and the flap 36 Can be separated from the side member 22. As a result, the bottom of the packaging box 1C is opened, and the volume is reduced as in the first embodiment.

Here, the shape of the hole forming portion 73C may be a mountain shape (triangular shape) or another shape such as a rectangle. The position where it is formed is one of the first cutting guide lines 72C. May be at the end of. In this case, the cut portion 731C formed by the notch 71C is formed to overlap the fold line 41 (or the fold line 42), and the fold line 733C is formed.
Is the fold line 41 (or, from the first cutting guide line 72C)
It is provided diagonally across the fold 42). The formation position of the hole forming portion 73C is not limited to the side material 22 side, and may be the other flap 36 side. Further, the hole forming part 7
3C is formed at the corners on the side surface member 21 and the side surface member 23,
That is, it may be provided at the intersection of the folds 41 and 55 or at the intersection of the folds 42 and 57. In this case, the cutting portion 731C and the cutting portion 732.
C is formed so as to overlap the fold line 57 or the fold line 42, and the fold line 733C is provided obliquely from the fold line 41 to the fold line 55 (or the fold lines 42 and 57).

Further, the fragile portion 7C may be provided on the flap 38 located below the flap 36. That is, in this embodiment, the hole forming portion 73C may be located at any position as long as the hole forming portion 73C is connected to the first cutting guide wire 72C.

FIG. 6 is a development view of the packaging box 1D of the fourth embodiment. The flap 38 is provided with a glued portion 8D for gluing, and when the packaging box 1D is assembled, the flap 36 that is glued with the glue of the flap 38 is attached.
An adhesive portion is formed between and. At flap 36,
A fragile portion 7D is provided at a position corresponding to this adhesive portion so as to surround the corresponding position. That is, in the assembled state of the packaging box 1D, the fragile portion 7D is provided at a position surrounding the glued place.

Since the glued portion 8D is a long and thin rectangle, the fragile portion 7D has an elongated strip shape (long and thin rectangle) according to its shape. The fragile portion 7D has a third cut guide line 72D formed by a short cut 71D arranged like a perforation, and a long cut 73D located at both ends of the fragile portion 7D. 74D. The glued portion of the flap 36 is entirely surrounded by the third cutting guide line 72D and the cut 74D.

With the above-mentioned structure, when the corners of the flap 36 of the packaging box 1D are pinched and peeled off, as shown in FIG. 7, it is formed inside the fragile portion 7D at the cut 74D. The cut piece 75D is separated from the flap 36 while being adhered to the flap 38 side. When the flap 36 is further peeled off, it is broken at the third cutting guide line 72D, and the cut piece 75D remains adhered to the flap 38.
Completely separate from flap 36. As a result, the connection between the flap 36 and the flap 38 is released, the bottom is opened, and the packaging box 1D can be easily flattened.

The shape of the fragile portion 7D may be an arbitrary shape such as a circle or a heart shape according to the shape of the glued portion 8D. If the glued portion 8D is provided at a plurality of positions, a plurality of fragile portions 7D can be provided according to the position of the glued portion 8D. Further, it is preferable that the cutout 74D is provided on the side where the peeling of the flap 36 is started, for example, at a position close to the open side end or the open side corner of the flap 36. With such a position, when the flap 36 is peeled off, first, the flap 36 and the cutting piece 75D are easily separated at the cut 74D, and then the break along the third cutting guide line 72D is easy. Because it will be. The fragile portion 7D has a flap 38
In, it may be provided at a position surrounding the glued portion 8D.

In addition to the above-described embodiment, also in the so-called sack box in which the flaps 34 and 38 are not provided as in the fifth embodiment shown in FIG. 8, the fragile portion 7 is similarly attached to the flap 36.
A, 7B, 7C, 7D can be provided. For example, a case where a weak portion similar to that in the third embodiment is provided will be taken as an example. In the present embodiment, the glued portion 8E is provided at the portion of the sack 361 provided at the tip of the flap 36.

The fragile portion 7E has a first cutting guide line 73E.
And a hole forming portion 72E. The first cutting guide line 73E is composed of a plurality of cuts 71E arranged at predetermined intervals as if perforations were made along the fold line 56 located at the folding base end of the flap 36. In addition, the hole forming portion 72E includes the first cutting guide line 73.
It is located at a substantially central portion of E and is constituted by a plurality of notches 71E arranged in a semicircular shape on the side surface 22 side.

In the above structure, when the fragile portion 7E is broken, a finger is thrust into the hole forming portion 72E. As a result, the semicircular cutting piece 74E is pushed into the finger and bent at the fold line 56. As a result, the cutting piece 74E is
The first cutting guide line 7 is folded into the back side of the flap 36.
A hole is formed in the center of 3E. Next, the inserted finger is moved along the first cutting guide line 73E to form the hole forming portion 72E.
From the left to right, the first cutting guide line 73E
The notch 71E makes it easy to break the flap 3
6 can be separated from the side member 22. As a result, the bottom of the packaging box 1E is opened, and the volume is reduced as in the first embodiment. In addition to the above case, the glued portion 8E
The hole forming portion 72E at the connection position where the
You may provide the weak part which has the same shape as.

Next, a sixth embodiment will be described. Figure 9
As shown in FIG.
F is provided, and the flap 36 is adhered to the glued portion 8F. A fourth cut formed by arranging notches 71F on the base end side (fold line 56 side) of the flap 36 located outside during packaging in the vicinity of the adhesive portion formed when the flap 36 is adhered. Weakened section 7 consisting of guide line 72F
F is provided. The cut 71F is connected to one end of the flap 36 and reaches the middle of the flap 36.

In the above structure, as shown in FIG. 10, when the flap 36 is peeled off so that the fragile portion 7F is broken, a gap is formed between the flap 36 and the flap 38 so that a finger can be inserted. This gap can be used as a peeling port 9 and a finger can be moved along the bonding portion (the glued portion 8F) to completely peel the flap 36 from the flap 38.

In this embodiment, since the weak portion is not so large, the volume can be easily reduced without lowering the strength of the entire packaging box.

Next, a seventh embodiment will be described. Figure 11
[Fig. 8] is a development view of the packaging box of the seventh embodiment. In this embodiment, the flap 36 is provided with a pressing portion 360G.
A glued portion 8G is provided near the base end of the flap 38.

The pushing portion 360G is located substantially at the center in the width direction of the flap 36. Then, the cutting line 362 provided in a mountain shape so that the apex portion has an arc shape.
G and the cutting line 363G that is connected to both ends of the cutting line 362G and is provided in a direction to further widen the hem-shaped skirt formed by the cutting line 362G configures the pushing portion 360G. Cutting line 362G, 363G
Is constituted by a plurality of short cuts 366G.

When the packaging box 1G of the seventh embodiment shown in FIG. 11 is assembled, the bottom is as shown in FIG. That is, the flap 38 is located inside the box, and the flap 36 is superposed on the outside thereof. Glued part 8
G is located near the tip side of the flap 36, and the flap 3
It becomes an adhesive portion 80G for adhering the flap 6 and the flap 38.

The operation for reducing the volume of the packaging box 1G having the above structure will be described. As shown in FIG. 12, the vicinity of the peak of the chevron of the pushing portion 360G is pushed in from the outside to the inside of the packaging box 1G with a finger. FIG.
FIG. 4B is a cross-sectional side view showing the bottom of the packaging box 1G, but the pushing portion 360G pushed in with a finger starts cutting from the portion of the cutting line 362G and cuts from the cutting line 362G to the cutting line 363.
The cutting continues to G, and the cut piece 364G surrounded by the cutting lines 362G and 363G separates the outer flap 36. With the cutting of the cut piece 364G, the inner flap 38 is pushed down inside the packaging box 1G. That is,
Since the inner flap 38 is pushed in a direction away from the outer flap 36, the adhesive portion 80G is peeled off, the outer flap 36 and the inner flap 38 are disconnected, and the bottom portion is opened.

Here, the pushing portion 3 is provided on the outer flap 36.
A notch 365G is formed at the position of 60G, and a peeling portion 81G is formed at the position of the adhesive portion 80G. A peeling portion 82G is formed on the inner flap 38 at the position of the bonding portion 80G, and the cut piece 364G remains bonded.

Here, the operation when the pushing portion 360G is pushed will be described in detail. As shown in FIG. 13, the point a pushed by the finger is the force point and the adhesive portion 80.
Due to the action of the lever with the position of G as the action point b and the fold line 58 as the fulcrum c, the adhesion of the adhesion portion 80G can be released with a small force. In addition, since the pressing portion 360G is provided at the substantially central portion in the width direction of the flap, the peeling force as described above is applied to the adhesive portion 80G in the same manner on the left and right, and the peeling can be easily performed without leaving any peeling. . further,
Since the cut-out piece 364G is overlapped with the inner flap 38 at the portion to be pushed in by a finger, the strength against bending is improved, and the pushing force does not bend the inner flap 38, and a force to reliably peel off the adhesive portion 80G is applied. .

Since the adhesive portion 80G is provided near the tip side of the outer flap 36, as shown in FIG. 13, the paper constituting the flap is peeled off and the adhesive portion 80G is removed.
Even if peeling pieces 821G are continuously generated from the peeling piece 821G, the peeling piece 82 is completely peeled off at the tip side of the outer flap 36.
1G is not connected to prevent the bottom from opening.

As shown in FIG. 14, the packaging box 1G whose bottom is opened as described above has folds 41, 4 as shown in FIG.
3 (or the folds 42 and 44) can be folded to easily reduce the volume. In this way, if the method of opening by pushing the finger is adopted, it is easy to apply force, so even a weak infant or an elderly person can easily open the package. Further, since the opening operation by pushing it inward is possible only in the case of an empty box, it is particularly useful as a method of opening the bottom of a used empty box.

Next, the packaging box 1H of the eighth embodiment will be described. This embodiment relates to a so-called sack box in which the flaps 34 and 38 are not provided. As shown in FIG. 14, a sack 361 is connected to the tip side of the flap 36, and the sack 361 is provided with a glued portion 8H. On the other hand, a pushing portion 240 is provided on the bottom side edge of the side member 24. Push-in section 24
OH is located substantially at the center in the width direction of the flap 24. And, so that the apex part becomes an arc shape,
By the cutting line 242H provided in the chevron shape and the cutting line 243H which is connected to both ends of the cutting line 242H and is provided in a direction to further widen the skirt of the chevron formed by the cutting line 242H, the pushing portion 240H is formed. It is configured. The cutting lines 242H, 243H are constituted by a plurality of short cuts 246H.

When the packaging box 1H as described above is assembled,
The sack 361 is inserted inside the box from the bottom side edge of the side member 24. Then, as shown in FIG. 16, the glued portion 8H of the sack 361 is located in the vicinity of the bottom side edge of the side surface member 24 and constitutes an adhesive portion 80H for bonding the flap 24 and the side surface member 24. .

When the volume of the empty box is to be reduced, the adhesion between the sack 361 and the side surface member 24 can be easily peeled off by pushing the pushing portion 240H as in the seventh embodiment. In addition to the configurations described in the seventh and eighth embodiments, the pushing portion may have a configuration in which only cutouts obtained by cutting the cutout pieces are provided in advance.

The present invention is not limited to the above-described embodiments, but can be used in boxes other than packaging boxes, containers whose opening is pre-opened, and the like. Further, the number of side members is not limited to four, and may be six, eight, or the like. Specifically, it can be used for a packaging box having a polygonal prism shape such as a hexagonal prism. In the case of the present embodiment, the case where the side members 21, 23 are folded in half corresponds to a hexagonal column-shaped packaging box.

[0060]

According to the packaging box of the present invention described above,
By breaking at the fragile portion, the opening and the bottom can be easily opened, and the volume of the box can be easily reduced. In particular, when breaking, there is no need for tools or instruments for breaking, there is no need to apply any special force to crush the box, and it is possible to quickly reduce the volume of the box with easy operation. It is possible.

[Brief description of drawings]

FIG. 1 is a development view of a packaging box according to a first embodiment of the present invention.

FIG. 2 is a partial perspective view of the bottom of the packaging box, showing how the fragile portion is broken.

FIG. 3 is an overall plan view of a used packaging box folded at a fold line and crushed into a flat state.

FIG. 4 is a development view of a packaging box according to a second embodiment.

FIG. 5 is a development view of a packaging box according to a third embodiment.

FIG. 6 is a development view of a packaging box according to a fourth embodiment.

FIG. 7 is a partial perspective view of the bottom portion of the packaging box showing the manner of breaking the fragile portion in the fourth embodiment.

FIG. 8 is a partial development view of the packaging box of the fifth embodiment.

FIG. 9 is a development view of the packaging box of the sixth embodiment.

FIG. 10 is a partial perspective view of the bottom of the packaging box showing a state in which the adhesive portion is peeled off in the packaging box of the sixth embodiment.

FIG. 11 is a development view of the packaging box of the seventh embodiment.

FIG. 12 is a partial perspective view showing the bottom surface of the packaging box of the seventh embodiment.

FIG. 13 is a sectional side view showing the bottom of the packaging box of the seventh embodiment.

FIG. 14 is an overall plan view of a used packaging box folded and flattened at folds in the packaging box of the seventh embodiment.

FIG. 15 is a development view of the packaging box of the eighth embodiment.

FIG. 16 is a partial perspective view showing the bottom surface of the packaging box of the eighth embodiment.

[Explanation of symbols]

 1A-1H Packaging box 21-24 Side material 241 Paste allowance 240 Pushing part 242 Cutting line 243 Cutting line 244 Cut piece 245 Notch 246 Notch 31-38 Flap 321 Slit 341 Protrusion 361 Sack 41-44 Fold 51-58 Fold 6 Open part 61 notch 62 knob 7A fragile portion 71A notch 72A first cutting guide line 73A second cutting guide line 74A knob 8A glued portion 7B fragile portion 71B notch 72B first cutting guide line 73B second cutting guide line 74B knob 75B Connection part 76B Cut piece 7C Weak part 71E Cut 72C First cutting guide line 73C Hole forming part 731C Cut part 732C Cut part 733C Fold 74E Cut piece 7D Weak part 71D Cut 72D Third cut guide line 73D Cut 7 D Cut 75D Cut piece 8D Glued part 7E Weak part 71E Cut 72E Cutting guide line 73E Cut piece 8E Glued part 7F Weak part 71F Cut 72F Second cutting guide line 8F Glued part 9 Peeling part 360G G cut part 363G cutting line 364G cutting piece 365G notch 366G cutting 8G glued part 80G adhesive part 81G peeling part 82G peeling part 821G peeling piece 240H pressing part 242H cutting line 243H cutting part 246H cutting part 245H cutting part 245H cutting part 245H cutting part 245H cutting part 245H cutting part 245H Peeling part 82H Peeling part 821H Peeling piece

Claims (11)

[Claims] 1. An even number of side members arranged in a loop through fold lines, and a flap foldably connected to each of the opposite side edges of the pair of side members facing each other. A box having a bottom portion formed by folding and connecting the flaps to each other, wherein at least one of the flaps is provided with a fragile portion, and the flap is broken at the fragile portion to open the bottom portion. A box characterized by being able to do things. 2. An even-numbered side surface member continuously arranged in a loop through a fold line, and one side surface member of one of the pair of side surface members facing each other, which is foldably connected continuously to one side edge. A box having a flap, the bottom part being formed by folding the flap and connecting the tip of the flap to one side edge of the other side member, which is fragile at the flap or the connecting position of the flap. A box, wherein a box is provided, and the bottom can be opened by breaking the flap at the weakened portion. 3. An even number of side members that are continuously provided in a loop shape through folds, and flaps that are foldably connected to the respective one side edges of a pair of the side members facing each other. One of the flaps is a box having an adhesive portion for adhering the flaps to each other, and forming a bottom portion by folding the flaps and adhering them to each other. A box characterized in that a fragile part is provided at a position surrounding the part, and the bottom part can be opened by breaking the flap at the fragile part. 4. The box according to claim 1, wherein the fragile portion has a first cutting guide line formed by arranging a plurality of cuts. 5. The first cutting guide wire is formed from one end side to the other end side of the flap.
Box described in. 6. A second cutting guide line is further provided with respect to the first cutting guide line, and the second cutting guide line is formed from an end side on a rupture start end side to the middle of the flap. The box according to claim 5, wherein 7. The first cutting guide wire is provided at a folding base end portion of the flap, and a hole forming portion formed by arranging a plurality of cuts is connected to the first cutting guide wire. The box according to claim 5, wherein 8. An even number of side-face members connected in a loop through folds, and flaps connected in a foldable manner to each of the opposite side edges of the pair of side-face members facing each other. A box that has a bonding portion that bonds the flaps to each other, and is a box that configures the bottom by folding each of the flaps and bonding at the bonding portion, and in each of the flaps, a flap that is located outside, A box characterized in that a fragile portion is provided in the vicinity of the adhesive portion, and the fragile portion serves as a peeling port for the adhesive portion. 9. An even number of side members that are continuously provided in a loop shape through folds, and flaps that are foldably connected to the respective one side edges of the pair of side members that face each other. A box having an adhesive portion for adhering the flaps to each other, the bottom portion being formed by folding each of the flaps and adhering the flaps at the adhesive portion, wherein the adhesive portion is in the vicinity of the tip end side of the flap located outside. The box provided on the outer side is provided with a pushing portion for pushing the bottom portion from the outer side to the inner side of the box to peel off the adhesive portion. 10. An even number of side-face members connected in a loop through fold lines, and a flap foldably connected to an end side of one side-face member of the pair of side-face members facing each other. A sack that is connected to the tip side of the flap and that is inserted inside the other side member during assembly, and an adhesive portion that is provided on the sack and that bonds the flap and the other side member to each other. A box that forms a bottom portion by folding each of the flaps and adhering the flaps at the adhering portion, wherein the adhering portion is provided in the vicinity of an end side of the other side surface material located outside, and the other side surface material The box is provided with a pushing portion for pushing the bottom portion from the outside to the inside of the box to peel off the adhesive portion. 11. The box according to claim 1, wherein the number of the side members is four or more.