JP2002331596A - Method for assembling corrugated fiberboard box and assembling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for assembling a corrugated fiberboard box by which the box can be assembled into a simple structure with the help of a frame of a simple structure as well as an assembling device. SOLUTION: The device 20 for assembling a corrugated fiberboard box 1 assembles a corrugated fiberboard box 1 by folding a flat plate-like corrugated fiberboard 101 with the help of the frame 2. The frame 2 has an inner frame 3 and an outer frame 4 which relatively move to each other, tightly holding the corrugated fiberboard 101. The outer frame 4 has a first protrusion part 41, a second protrusion part 42 which is lower in height than the first protrusion part 41 and a third protrusion part 43 which is further lower in height than the part 41. The inner frame 3 has a first opposite part 31 and a second opposite part 32. In addition, a corner tack flap 13, a first side flap 11 and a second side flap 12 of the corrugated fiberboard 101 are sequentially folded by relatively moving the inner frame 3 and the outer frame 4 and the corner tack flap 13 and the second side flap 12 are tacked together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a corrugated cardboard box by bending a flat corrugated cardboard with a frame, and an assembling apparatus therefor.

[0002]

2. Description of the Related Art Heretofore, as a method of assembling a container-like corrugated cardboard box surrounded on all sides by side walls, a flat corrugated cardboard plate is bent and assembled along a fold line provided on the corrugated cardboard plate. For example, as an apparatus for manufacturing the corrugated cardboard box, Japanese Patent Application Laid-Open Nos. 9-239870 and 20
There is one described in, for example, JP-A-00-233456.

In these apparatuses, a frame type having an outer frame having an outer shape larger than the outer shape of a corrugated cardboard box to be assembled and an inner frame inserted inside the outer frame is used.
Then, the cardboard is sandwiched between the outer frame and the inner frame, and the inner frame and the outer frame are relatively moved to bend the cardboard plate. Has been produced.

[0004]

However, in the corrugated cardboard box manufactured by the above-mentioned conventional manufacturing apparatus, at least a pair of opposing sides of the side wall is bent at 90 °, and then the tip of the side is further bent at 90 °. As a whole, it is folded back at 180 °. Therefore, the structure of the corrugated board itself, which is a material for producing a corrugated board, is complicated.

[0005] The cardboard box manufactured by the above-mentioned conventional manufacturing apparatus is a box for packing electric appliances or the like, or a box used when shipping vegetables and the like.
In other words, these boxes are made to be hard to break in order to carry the products or articles therein, and have a box structure that emphasizes the appearance so that consumers can see them.

[0006] Therefore, as described above, instead of a cardboard box used to put a product or an article, for example,
In the construction industry, cardboard boxes for packing intermediates such as doors and shelves for transportation between contractors do not require much of the appearance and strength of the cardboard boxes themselves. An apparatus that can easily produce a box is desired.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a cardboard box assembling method and an assembling apparatus which can be assembled into a simple structure using a frame having a simple structure. Is what you do.

[0008]

According to a first aspect of the present invention, a flat corrugated cardboard plate is bent by a frame, and a bottom surface portion, a pair of opposed first side surfaces, and a remaining pair of opposed second side surfaces are provided. In a method of assembling a cardboard box comprising sides, the cardboard board is provided with a first portion with respect to the bottom portion.
The first side edge connected continuously via a fold line, the second side edge connected continuously via a second fold line to the bottom surface, and third folds at both ends of the first side edge. The frame type has an inner frame and an outer frame which are relatively moved from both sides of the corrugated board so as to sandwich the corrugated board. And has
The outer frame has a first protrusion contacting the fastening portion, a second protrusion having a lower height than the first protrusion and contacting the first side edge, and a second protrusion. And a third protrusion having a lower height than that of the second frame, and the inner frame has an outer shape capable of being inserted inside the outer frame, and has a second protrusion. A first opposing portion for bending the first side of the corrugated cardboard together with the projection, and a second opposing portion for bending the second side of the corrugated cardboard together with the third protrusion; In assembling the board, the corrugated board is arranged between the inner frame and the outer frame, and the inner frame and the outer frame are brought closer to each other, so that the first protrusions and the corrugated board are separated. By making contact with the fastening portion, the fastening portion is folded in the third fold. A first bending step of bending the wire, then further brought close to and above the frame and the outer frame,
A second side in which the first side edge is bent at about 90 ° at the first fold line by the second protrusion and the first opposing portion.
A bending step, and further bringing the inner frame and the outer frame closer to each other, and by using the third protrusion and the second facing portion, the second side edge at the second fold line is fixed to the fastening portion. A third bending step of bending by about 90 ° so as to overlap the outside of the buckle, and then fastening the fastening portion and the adjacent portion of the second side surface adjacent to the fastening portion with a fastener. And a step of assembling a cardboard box.

The most remarkable point in the present invention is that when the corrugated board made up of the bottom face, the first side face, the second side face, and the fastening portion is bent, the inner frame and the outer frame are not bent. Are moved relatively to each other, and the fastening portion is applied to the first projection, the first side surface is applied to the second projection portion, and the second side surface is applied to the third projection portion, respectively. And assembling the cardboard box.

Next, the operation and effect of the present invention will be described.
In the present invention, the corrugated cardboard is provided with the first fold line provided between the first side surface and the bottom portion, and the second fold line provided between the second side surface and the bottom portion. And a third fold line provided between the first side edge and the fastening portion. Therefore, in each of the steps, the first side surface, the second side surface, and the fastening portion can be easily bent along each of the fold lines. Here, the fold line is a cut line provided on the corrugated board with a blade or the like to facilitate bending.

The outer frame of the frame mold has the first, second and third protrusions having different heights. Therefore, the corrugated board can be bent stepwise only by moving the inner frame and the outer frame relatively in one direction, and the corrugated box can be easily assembled.

Further, the inner frame is provided between the first opposing portion and the second opposing portion.
And an opposing portion. Therefore, the first side surface can be easily bent by the second protrusion and the second facing portion, and the second side surface can be bent by the third protrusion and the second facing portion. It can be easily folded so as to overlap the outer side of the side.

After the corrugated board is bent, the fastening portion fastens the fastening portion and the adjacent portion of the second side surface. As a result, the assembled cardboard box can be fixed so as not to open in the shape of the original cardboard board.

Further, in the method for assembling a cardboard box according to the present invention, the cardboard board only has the bottom surface, the first side surface, the second side surface, and the fastening portion.
Therefore, the structure of the corrugated board itself, which is a material for producing a corrugated board, is simple. Therefore, the cardboard box of the present invention can be used, for example, in the construction industry as a cardboard box for packing intermediates such as doors and shelves for transportation between traders. Further, the cardboard box is assembled in a simple structure, and the frame mold for performing this assembly includes an outer frame having the first, second, and third projections, and an outer frame having the first, second, and third projections. This is a simple structure including an inner frame having a first facing portion and a second facing portion.

Next, as in the second aspect of the present invention, the second and third projections on the outer frame, and the first and second opposed portions on the inner frame are formed by: The outer frame has a fastening gap between the first projection and the third projection, while the inner frame is provided with the second facing portion. It is preferable that the both ends of the portion have notches for avoiding interference with the fastening portion in a state where the second side surface is bent by about 90 °.

The second projecting portion and the first opposing portion are continuously in contact with the first side of the corrugated board, and
The projection and the second opposing portion continuously contact the second side of the corrugated board. Therefore, the first cardboard box
The bending load can be applied uniformly over the entire side surface and the second side. Therefore, for example, even when assembling a cardboard box for packaging a large part such as a building door or a shelf board, it can be easily bent.

The outer frame has a fastening gap between the first projection and the third projection, and the inner frame has the corrugated board at both ends of the second facing portion. Has a notch for avoiding interference with the fastening portion. Therefore, while holding the bent corrugated cardboard in the outer frame, an operator performing the fastening puts his hand into the fastening gap and the notch for avoiding interference, and the fastener is used for the fastening. Fastening can be performed between the fastening portion and an adjacent portion of the second side surface side. Therefore, this fastening can be easily performed.

Next, as in the third aspect of the invention, the fastening in the fastening step is performed with the bent corrugated cardboard sandwiched between the inner frame and the outer frame. Is preferred. Thus, the bent corrugated cardboard plate can be easily held inside the frame mold and the fastening can be performed. In addition, in this case, the notch for avoiding interference in the inner frame has a space where the
Alternatively, it is preferable to have a space in which a tool for fastening can be arranged. Thereby, the fastening can be performed more easily.

Next, it is preferable that the fastener is a tape material or a stapler needle. This makes it easier to assemble the cardboard box into a simple structure.

Next, according to a fifth aspect of the present invention, a flat corrugated cardboard plate is bent by a frame, and a bottom portion, a pair of first side surfaces facing each other, and a pair of remaining second side surfaces facing each other. In the apparatus for assembling a corrugated cardboard box comprising sides, the frame mold is formed on the bottom surface, the first side surface connected to the bottom surface via a first fold line, and the bottom surface portion. The second side edge, which is continuously provided via the second fold line,
An inner frame and an outer frame which move relative to each other so as to be sandwiched from both sides of the corrugated board having the fastening portions provided at both ends of the first side surface via a third fold line. The outer frame has a first protrusion contacting the fastening portion, a second protrusion having a lower height than the first protrusion, and contacting the first side surface; A second projection having a lower height than the second projection and a third projection abutting against the second side surface, while the inner frame has an outer shape capable of being inserted inside the outer frame; A first opposing portion that bends the first side of the corrugated board together with the second protrusion; and a second opposing portion that bends the second side of the corrugated board together with the third protrusion. An apparatus for assembling a cardboard box.

According to the present invention, a cardboard box assembling apparatus which can exhibit the same operation and effect as the above-mentioned claim 1 and which can be assembled into a simple structure by a frame having a simple structure. Can be provided.

Next, as in the invention as set forth in claim 6, the second and third projections on the outer frame, and the first and second opposed portions on the inner frame are The outer frame has a fastening gap between the first projection and the third projection, while the inner frame is provided with the second facing portion. It is preferable that the both ends of the portion have notches for avoiding interference to avoid interference with the fastening portion when the second side is bent by about 90 °.

In this case, the same function and effect as those of the second aspect can be obtained, and the cardboard box can be more easily assembled.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments A method and an apparatus for assembling a cardboard box according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, in the method of assembling the corrugated cardboard box 1 in this embodiment, a flat corrugated cardboard plate 101 is bent by a frame mold 2, and a bottom surface portion 10, a pair of opposing first side surfaces 11 and the remaining The corrugated cardboard box 1 including a pair of opposing second side edges 12 is assembled. The corrugated board 101
Is connected to the bottom surface 10 via a first fold line 111 to the bottom surface 10, and to the bottom surface 10 via a second fold line 121 to the bottom surface 10. The second side surface 12 is provided, and a fastening portion 13 is provided at both ends 112 of the first side surface 11 via a third fold line 131.

An assembling apparatus 2 for assembling the cardboard box 1
Reference numeral 0 denotes a frame mold 2 and a movable device of the inner frame 3 (not shown). The frame mold 2 is provided with the cardboard board 101.
The inner frame 3 is relatively moved from both sides of the back surface 105 and the front surface 106 so as to sandwich the corrugated board 101.
And an outer frame 4. The outer frame 4 is attached to the fastening portion 1.
3, a second protrusion 42 having a lower height than the first protrusion 41 and abutting on the first side surface 11, and a lower height than the second protrusion 42. A third protrusion 43 having a height and abutting on the second side surface 12 is provided.

On the other hand, the inner frame 3 is located inside the outer frame 4,
That is, it has an outer shape that can be inserted into a planar rectangular space surrounded by the second protrusions 42 and the third protrusions 43, and bends the first side surface 11 of the cardboard board 101 together with the second protrusions 42. 1 opposing portion 31 and the second side 1 of the corrugated cardboard board 101 together with the third protrusion 43.
And a second facing portion 32 that bends the second facing portion 2.

As shown in FIG.
In assembling, the cardboard board 101 is first disposed between the inner frame 3 and the outer frame 4. Then, as shown in FIGS. 3 (a) and 3 (b), the inner frame 3 and the outer frame 4 are brought close to each other, and the first projection 41 and the fastening portion 13 of the corrugated board 101 are brought into contact with each other. Contact
Then, as shown in FIGS.
Is bent about 90 ° at the third fold line 131.

Next, as shown in FIGS. 5 (a) and 5 (b), the inner frame 3 and the outer frame 4 are further brought closer to each other, and the A second bending step of bending one side edge 11 by about 90 ° at the first fold line 111 is performed. Next, FIG.
As shown in (b), the inner frame 3 and the outer frame 4 are brought closer to each other, and the third projection 43 and the second facing portion 32 cause the second side edge of the second fold line 121 to move. 12 so as to overlap the outside of the fastening portion 13 so that about 9
A third bending step of bending by 0 ° is performed.

Then, as shown in FIGS. 7A and 7B, the fastening portion 13 and the second
A fastening step of fastening the side portion 12 and the adjacent portion 122 with the fastening tool 15 is performed to assemble the cardboard box 1 including the bottom portion 10, the first side edge 11, and the second side edge 12.

The details will be described below. As shown in FIG. 8, the cardboard board 101 is made of a cardboard 102 and a cardboard 102.
And a flat plate-like structure containing a web 103 formed in a wavy shape. The first corrugated board 101
The side edge 11 is longer than the second side edge 12,
The web 103 is provided in a direction along the second side edge 12.

The first fold line 111, the second fold line 121, and the third fold line 131 of the cardboard board 101.
Each fold line is formed by making a cut with a blade. Each fold line is provided on the back surface 105 which is a surface which becomes inside when the fastening portion 13, the first side surface 11 and the second side surface 12 are bent.

The cardboard board 101 has the second side 1
2, a pair of cuts 14 are formed, and the position of the cuts 14 is determined by the first side 11 and the second side.
This is a reference for partitioning the side surface 12 and the fastening portion 13. The length of the cutout 14 is the height of the second side surface 12. Then, the first side edge 11 and the second side edge 1
2 have substantially the same width as those of the cardboard box 1
Are formed.

The first fold line 111 corresponds to the first side 1
In the direction along the first fold line 1, the first fold line 11
Outside the first side 1 is the first side surface 11. The second fold line 121 is provided in the direction along the second side edge 12 from the cut edge 141 of the cut portion 14 on one second side edge 12 to the other cut edge 141. Outside the second fold line 121 is the second side edge 12. The third fold line 131
Is provided at a position where the second fold line 121 is extended, and the outside of the third fold line 131 is
It is 3.

As shown in FIG. 7B, the cardboard box 1
Has a container shape in which four sides are surrounded by side walls by a pair of opposing first side edges 11 and a pair of remaining opposing second side edges 12 with the bottom surface portion 10 as a main body. More specifically, the cardboard box 1 includes a pair of first side edges 11.
Form side walls facing each other, and both end portions 1 of the first side edge 11.
A fastening portion 13 formed at 12 is located on the remaining opposing side wall portion, and the second side surface 12 is located outside the fastening portion 13 to form a container.

As shown in FIG. 1, the frame 2
Is configured such that the outer frame 4 is on the lower side and the inner frame 3 is on the upper side. The outer frame 4 is fixed, and the inner frame 3 is lowered with respect to the fixed outer frame 4 so that the corrugated cardboard board 101 is fixed. Is designed to bend.

As shown in FIG. 9A, the outer frame 4 is
One plate is used as the substrate section 40 and the first
It is configured by arranging the projection 41, the second projection 42, and the third projection 43. The first projection 41, the second projection 42, and the third projection 43 are each made of one piece of material. The first projection 41, the second projection 42, and the third projection 43 are each made of a continuous and long material, and can be made of wood, which is a building timber.

The outer frame 4 has a fastening gap 44 between the first projection 41 and the third projection 43. In the portion where the fastening gap 44 is formed, the fastening portion 13 and the adjacent portion 122 of the second side surface 12 are located.

As shown in FIG. 9B, the inner frame 3
The whole is formed in a size arranged in a planar rectangular space surrounded by the second protrusions 42 and the third protrusions 43. The inner frame 3 is made of one plate, and the first opposing portion 31 and the second opposing portion 32 are each configured as a side of the one plate. Further, the inner frame 3 can be made of wood for construction.

The inner frame 3 is provided at both ends 321 of the second facing portion 32 to avoid interference with the fastening portion 13 in a state where the first side surface 11 is bent by about 90 °. It has a notch 33 for use. The interference avoiding notch 33 is formed at a position facing the portion where the fastening gap 44 is formed.

As shown in FIG. 10A, when the inner frame 3 is moved and placed inside the outer frame 4, the second frame
A gap 5 is provided between the protrusion 42 and the first facing portion 31 of the inner frame 3.
1 is formed, and a gap 52 is formed between the third protrusion 43 and the second facing portion 32. The gap 51 and the gap 52
Has a width substantially equal to the thickness of the corrugated board 101 or a width slightly larger than the thickness. Accordingly, the first side surface 11 is easily sandwiched between the second projection 42 and the first facing portion 31, and the second side surface 12 is easily sandwiched between the third projection 43 and the second facing portion 32. It can be folded into.

As shown in FIG. 10B, the second protrusion 4
The second opposing surface 421 opposing the first opposing portion 31 and the opposing surface 4 opposing the third protruding portion 43 of the first protruding portion 41.
11 is on substantially the same extension. The second facing surface 431 of the third protrusion 43 facing the second facing portion 32 is
The first protruding portion 41 is formed outwardly from the facing surface 412 on the side facing the second protruding portion 42 by a width substantially equal to the thickness of the corrugated cardboard board 101. As shown in FIG. 15, the second opposing surface 431 may be formed on substantially the same extension as the opposing surface 412 of the first protruding portion 41 on the side facing the second protruding portion 42.

Hereinafter, a method of assembling the cardboard box 1 will be described in detail. First, as shown in FIG. 2, a flat corrugated board 101 is placed on the outer frame 4 and the back surface 105 on which the fold lines are provided is placed on the side where the inner frame 3 is provided, that is, on the upper side in this example. The surface 106 on the side where the outer frame 4 is provided,
That is, in the present example, they are arranged on the lower side. Then, FIG.
As shown in (a) and (b), the inner frame 3 is lowered from above the corrugated board 101 disposed on the outer frame 4. At this time, as shown in FIGS. 4A and 4B, first, the first protrusion 41 and the fastening portion 13 of the corrugated cardboard board 101 are attached.
11 (see FIG. 11A), and the fastening portion 13 bends at the third fold line 131 (FIG. 11B).
reference).

Note that, as shown in FIG.
In order to facilitate the bending of the fastening portion 13, an auxiliary portion 34 connected via a hinge portion 341 can be provided outside the first facing portion 31. And
In this case, the auxiliary portion 34 can hold down the first side edge 11 by its weight. Then, the fastening part 1 is formed by the auxiliary part 34 and the first protrusion 41.
3 can be easily bent at the third fold line 131.

Next, as shown in FIGS. 5A and 5B, the inner frame 3 is further lowered. At this time, the second
The protrusion 42 contacts the first side surface 11 (FIG. 12A).
), The first side surface 11 is sandwiched in the gap between the second protrusion 42 and the first facing portion 31 of the inner frame 3, and the first side surface 11
Is bent by about 90 ° at the first fold line 111 (see FIG. 12B). The fastening portions 13 formed on both end portions 112 of the first side edge 11 are located on the second side edge 12. At this time, since the inner frame 3 is provided with the notch 33 for avoiding interference, interference between the inner frame 3 and the fastening portion 13 can be avoided.

Next, as shown in FIGS. 6A and 6B, the inner frame 3 is further lowered. At this time, the third protrusion 43 contacts the second side surface 12 (FIG. 13).
(A)), the third protrusion 43 and the second facing portion 3 of the inner frame 3.
The second side edge 12 is sandwiched in the gap between the second fold line 2 and the second side edge 12 is bent by about 90 ° at the second fold line 121 (see FIG. 13B). At this time, the second side surface 12 is bent so as to overlap the outside of the fastening portion 13.

Next, as shown in FIGS. 7 (a) and 7 (b), when the bent corrugated cardboard board 101 is sandwiched between the inner frame 3 and the outer frame 4, the above-mentioned fastening gap of the outer frame 4 is held. The fastening portion 13 and the adjacent portion 122 of the second side surface 12 adjacent to the fastening portion 13 are fastened by utilizing the space provided in the interference avoiding cutout portion 33 of the inner frame 3 and the inner frame 3. It is fastened by the tape material as the attachment 15. After that, the folded cardboard box 1 is taken out by using the fastening gap 44 of the outer frame 4 and the notch 33 for avoiding interference of the inner frame 3. Note that the above fastening may be performed using a stapler needle instead of the tape material.

When removing the cardboard box 1 from the outer frame 4, the substrate 40 of the outer frame 4 is made movable,
It may be performed by dropping the folded cardboard box 1 below the outer frame 4. Specifically, the substrate unit 40 can be configured to have a structure in which the board unit is slid in the lateral direction to drop, or a structure in which the board unit 40 is rotated and dropped. In this case, it is easy to take out the corrugated cardboard box 1 after the bending.

The cardboard box 1 is taken out of the outer frame 4 by making the outer frame 4 into an annular structure having a drop port as described below and dropping the cardboard box 1 from the drop port. Can be. That is, in this case, FIG.
As shown in (b), the outer frame 4 has the substrate portion 40 provided only on the lower surface portions of the first projecting portion 41, the second projecting portion 42, and the third projecting portion 43, and is surrounded by the projecting portions. The structure is such that a drop port 401 is provided in the portion. The inner frame 3 sandwiching the bent and formed cardboard box 1 with the outer frame 4 is further lowered with respect to the outer frame 4 and dropped from the drop port 401 to take out the cardboard box 1. Do.

The bending of the corrugated board 101 may be performed by fixing the inner frame 3 and raising the outer frame 4 from below. The frame mold 2 may be configured by disposing the inner frame 3 on the lower side and the outer frame 4 on the upper side. In this case, the bending of the cardboard board 101 by the relative movement between the inner frame 3 and the outer frame 4 may be performed by fixing the inner frame 3 and lowering the outer frame 4 with respect to the inner frame 3. The fixing may be performed by fixing the outer frame 4 and raising the inner frame 3 with respect to the outer frame 4.

Next, the operation and effect of this embodiment will be described. In this example, the corrugated board 101 has a first fold line 111, a second fold line 121, and a third fold line 131 formed by a cutting tool on a back surface 105, which is inside when folded.
Are formed. Therefore, in each of the steps, the fastening portion 13, the first side edge 11, and the second side edge 12 can be easily bent along each of the fold lines.

The outer frame 4 in the frame mold 2 has the first protrusion 41 and the second protrusion 42 having different heights.
And a third protrusion 43. Therefore, only by lowering the inner frame 3 in one direction with respect to the outer frame 4, each part of the cardboard board 101 can be sequentially brought into contact with each of the projections. Therefore, the cardboard board 101 can be easily bent stepwise, and the cardboard box 1 can be easily assembled.

After the corrugated board 101 is bent, the fastening portion 13 and the adjacent portion 122 of the second side edge 12 are fastened by a fastening tool 15 made of a tape material. Thereby, the assembled cardboard box 1
However, it can be easily fixed so as not to open in the shape of the original cardboard board 101.

In the method of assembling the cardboard box 1 in this embodiment, the cardboard board 101 is attached to the bottom 1
0, the first side surface 11, the second side surface 12, and the fastening portion 13. Therefore, the structure of the cardboard board 101 itself, which is a material for manufacturing the cardboard box 1, is simple. Therefore, it can be used as a cardboard box 1 for packaging an intermediate or a product before it becomes a product or a product. Therefore, the cardboard box 1 can be used, for example, in the construction industry as a cardboard box 1 serving as an intermediate for doors, shelves, etc. for transportation between contractors.

The cardboard box 1 is assembled in a simple structure, and the frame mold 2 for performing this assembly is used.
Has a simple structure consisting of an outer frame 4 having each of the above-mentioned projections formed of one piece of material and an inner frame 3 formed of one plate. Therefore, both the outer frame 4 and the inner frame 3 can be made of wood for construction, and can be made extremely easily and inexpensively.

The second protrusion 42 and the first facing portion 31
Means that the third protruding portion 43 and the second opposing portion 32 continuously contact the first side surface 11 of the corrugated board 101 and the second side surface 12 of the corrugated board 101. Abut Therefore, a bending load can be applied uniformly over the entire first side surface 11 and second side surface 12 of the cardboard box 1. Therefore, for example, when assembling the cardboard box 1 for packaging a large part such as a building door or a shelf board, the assembling can be easily performed.

In this embodiment, the corrugated board 1
No. 01 has a web 103 along a first side 11 which is a long side in the rectangle. Therefore, the long first side surface 11 can be easily bent at the first fold line 111.

The outer frame 4 has the first projection 4
A gap 44 for fastening is provided between the first and third protrusions 43, and both ends 321 of the second facing portion 32 are provided on the inner frame 3 for interference with the fastening portion 13 of the cardboard board 101. It has a notch 33 for avoiding interference. For this reason, in a state where the bent corrugated board 101 is held in the outer frame 4, a worker performing fastening puts a hand in the fastening gap 44 and the interference avoiding notch 33, and With the fastener 15, the fastener 13 and the second
Fastening with the adjacent portion 122 of the side edge 12 can be performed. Therefore, this fastening can be easily performed.

[0058]

As described above, according to the present invention, it is possible to provide a method of assembling a cardboard box which can be assembled into a simple structure using a frame having a simple structure, and an apparatus for manufacturing the same.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cardboard box assembling apparatus according to an embodiment.

FIG. 2 is a view showing an assembling apparatus of a cardboard box in the embodiment, and is a perspective view showing a state in which a cardboard board is arranged between an inner frame and an outer frame.

3A and 3B are perspective views showing a state in which a fastening portion is brought into contact with a first protrusion, and FIG. FIG.

4A is a perspective view showing a state in which a fastening portion is bent, and FIG. 4B is a perspective view showing a corrugated board in this state; FIG.

5A is a perspective view showing a state in which a first side is bent, and FIG. 5B is a perspective view showing a corrugated board in this state; FIG.

FIG. 6 is a perspective view showing a state in which a second side is bent, and FIG. 6B is a perspective view showing a corrugated board in this state;

7A is a perspective view showing a state in which a fastening portion is fastened to a second side surface side, and FIG. 7B is a view showing an assembling apparatus for a cardboard box in the embodiment; FIG. Perspective view.

FIG. 8 is a perspective view showing a corrugated board in the embodiment.

FIG. 9A is a plan view showing an outer frame, and FIG. 9B is a plan view showing an inner frame.

10A is a plan view showing a state in which the inner frame is disposed inside the outer frame, and FIG. 10B is a diagram showing a state in which the corrugated board is bent while being sandwiched in a gap between the inner frame and the outer frame. FIG.

FIGS. 11A and 11B show an example of the embodiment; FIG.
-A view in the direction of the arrow A, in which the fastening portion is in contact with the first protrusion,
(B) FIG. 4 (a) is a view taken in the direction of arrow BB, and is an explanatory view showing a state where a fastening portion is bent.

FIGS. 12A and 12B are views of the embodiment, taken along the line CC in FIG. 5A, wherein FIG. 12A shows a state in which a first side surface is in contact with a second protrusion, and FIG. Explanatory drawing which shows the state which was bent.

FIGS. 13A and 13B are views of the embodiment taken along line DD in FIG. 6A, in which (a) a state where the second side surface is in contact with the third protrusion, and (b) a second side surface. Explanatory drawing which shows the state which was bent.

FIG. 14 is an explanatory view showing a state in which a fastening portion is fastened to a second side surface side in the EE arrow direction of FIG. 7A in the embodiment.

FIG. 15 is a plan view showing a state in which a corrugated board is sandwiched and bent in a gap between another outer frame and an inner frame in the embodiment.

FIG. 16 is a perspective view showing a state in which the fastening portion is bent by an inner frame and an outer frame having an auxiliary portion connected via a hinge portion to the outside of the first facing portion in the embodiment.

FIG. 17 is a diagram showing another outer frame in the embodiment.
(A) The top view which shows the outer frame which has a fall port, (b) The perspective view which shows the outer frame which has a fall port.

[Explanation of symbols]

 1. . . Cardboard box, 101. . . Corrugated board, 10. . . Bottom part, 11. . . First side, 111. . . First fold line, 12. . . Second side edge, 121. . . Second fold line, 122. . . Adjacent part, 13. . . Fastening part, 131. . . Third fold line, 14. . . Notch, 15. . . Fasteners, 2. . . 2. Frame type, . . Inner frame, 31. . . First facing portion 32. . . Second facing portion 33. . . 3. Notch for avoiding interference; . . Outer frame, 40. . . Board part, 41. . . First projection 42. . . Second projection, 43. . . Third protrusion, 44. . . Clearance for fastening,

Claims (6)

[Claims] 1. A method of assembling a cardboard box having a bottom surface, a pair of opposing first side surfaces, and a pair of remaining opposing second side surfaces by bending a flat corrugated cardboard plate with a frame. The corrugated board is provided with the bottom portion, the first side surface connected to the bottom portion through a first fold line, and the second side portion connected to the bottom portion through a second fold line. The frame has a second side edge and a fastening portion continuously provided at both ends of the first side edge via a third fold line. An inner frame and an outer frame that move relatively to each other so as to sandwich the corrugated cardboard plate; the outer frame has a first protrusion that contacts the fastening portion; A second protruding portion having a low height and abutting on the first side surface, and lower than the second protruding portion; A third protrusion having a height and abutting on the second side surface side, while the inner frame has an outer shape that can be inserted inside the outer frame, and has an outer shape along with the second protrusion. A first opposing portion for bending the first side of the corrugated board, and a second opposing portion for bending the second side of the corrugated board together with the third protrusion; In performing the above, the corrugated board is disposed between the inner frame and the outer frame, and the inner frame and the outer frame are brought close to each other, so that the first protrusion and the fastening portion of the corrugated board are provided. A first bending step of bending the fastening portion at the third fold line by contacting the inner frame and the outer frame. The first side surface is moved to the first side by the first facing portion. A second bending step to bend approximately 90 ° at Looking Ri, then
The inner frame and the outer frame are brought closer to each other, and the third protrusion and the second opposing portion allow the second side surface to overlap the outside of the fastening portion at the second fold line. A third bending step of bending by about 90 °, and a fastening step of fastening the fastening portion and an adjacent portion of the second side surface adjacent to the fastening portion with a fastening tool. How to assemble a cardboard box. 2. The device according to claim 1, wherein the second projection and the third projection on the outer frame, and the first facing portion and the second facing portion on the inner frame are provided continuously. The outer frame has a fastening gap between the first projection and the third projection, while the inner frame is provided at both ends of the second facing portion. A method for assembling a cardboard box, comprising a notch for avoiding interference with the fastening portion when the second side surface is bent by about 90 °. 3. The fastening according to claim 1, wherein the fastening in the fastening step is performed with the bent corrugated cardboard sandwiched between the inner frame and the outer frame. How to assemble a cardboard box. 4. The method according to claim 1, wherein:
A method for assembling a cardboard box, wherein the fastener is a tape material or a stapler needle. 5. An apparatus for assembling a cardboard box having a bottom surface, a pair of opposing first side surfaces, and a remaining pair of opposing second side surfaces by bending a flat corrugated cardboard plate with a frame. The frame has a bottom surface, a first side surface connected to the bottom surface via a first fold line, and a continuous connection to the bottom surface via a second fold line. A third side is provided at both ends of the second side and the first side.
An inner frame and an outer frame which move relative to each other so as to be sandwiched from both sides with respect to the corrugated board having a fastening portion continuously provided through a fold line, wherein the outer frame is provided with the fastening device. A first protrusion contacting the first protrusion, a second protrusion having a lower height than the first protrusion and contacting the first side surface, and a lower height than the second protrusion; The inner frame has an outer shape that can be inserted inside the outer frame, and the inner frame has an outer shape that can be inserted inside the outer frame. An assembling apparatus for a cardboard box, comprising: a first facing portion that bends a first side surface; and a second facing portion that bends the second side surface of the corrugated board together with the third protrusion. 6. The device according to claim 5, wherein the second projection and the third projection on the outer frame, and the first facing portion and the second facing portion on the inner frame are provided continuously. The outer frame has a fastening gap between the first projection and the third projection, while the inner frame is provided at both ends of the second facing portion. An assembling apparatus for a corrugated cardboard box, comprising a notch for avoiding interference with the fastening portion when the second side surface is bent by about 90 °.