JP3135604U - Corrugated cardboard - Google Patents

Abstract

The present invention provides a corrugated cardboard bag which can be easily handled during transportation and use by effectively preventing wrinkles and dents in the bottom plate.
A corrugated cardboard basket is formed by assembling a development sheet made of reinforced corrugated cardboard into a box shape. A bottom plate 12A, side plates 12B and 12B which are raised substantially vertically to the left and right of the bottom plate 12A, and the bottom plate 12A It has a girdle that can be raised almost vertically. A reinforcing plate 15 made of a combustible material that covers the plate surface is provided below the bottom plate 12A. A decorative cloth may be bonded to the side surfaces of the side plates 12B, 12B and the end plate, and the reinforcing plate 15 may be sewn to the lower end portion of the decorative cloth.
[Selection] Figure 4

Description

  The present invention relates to a cardboard box, and more particularly to a bottom plate structure of the cardboard box.

Conventionally, a corrugated cardboard basket is known as an alternative to a wooden basket. Corrugated cardboard boxes are attracting attention as environmentally friendly funerals because they are lighter and more combustible than wooden boxes, and can be easily assembled by folding the cardboard board.
As a configuration of a conventional corrugated cardboard basket, for example, side plates are raised on the left and right sides of a rectangular bottom plate, and end plates are raised before and after the bottom plate. The bottom plate, the side plate, and the end plate are formed by assembling a development sheet made of reinforced corrugated cardboard into a box shape. V-groove processing for bending is performed at the boundary of each plate in the development sheet.
Patent Documents 1 and 2 are disclosed as prior art of corrugated cardboard baskets.

Japanese Utility Model Publication No. 7-17225 JP 2005-187049 A

  However, such a conventional cardboard box uses a cardboard material that is light and flammable, but its board surface (corrugated paper surface) has a lower strength than a wooden box. For this reason, when the load of the kite is concentrated on a part of the bottom plate, the plate surface is likely to have a kite or a dent.

Specifically, the problem of insufficient strength of the bottom plate occurs in the following situation.
(1) When carrying a kite with a hearse, the kite may be placed on a conveyor type carrier. In general, a plurality of rollers are arranged in parallel on the conveyor, and the ridges are rolled on and off the rollers. When a cardboard box is placed on such a conveyor-type loading platform, the bottom plate of the cardboard box is pushed at the contact portion of the roller and is recessed, which may hinder the movement of the cardboard box.
(2) Also, during funerals, there are many cases where a coffin is installed in front of the altar and a coffin is placed on it. The gantry is made of a hard material such as wood or stone, and is formed into a columnar shape. When a corrugated board is placed on such a gantry, the load concentrates on the base of the gantry and dent marks remain on the plate surface of the bottom plate. End up.

  As a reinforcing structure of a corrugated cardboard cage, as shown in Patent Document 1, there is known a structure in which a frame material is fixed to the outside of the corrugated cardboard cage. Such a frame material is effective for maintaining a box shape. Even if it exists, the intensity | strength of a baseplate cannot fully be supplemented. Also, the frame material gets in the way when the cardboard box is placed on the conveyor of the hearse.

  The present invention has been made in view of such a situation, and an object thereof is to provide a corrugated cardboard bag that can be easily handled during transportation and use by effectively preventing wrinkles and dents in the bottom plate. .

[First Device]
Assembling type corrugated cardboard cage of the 1st device for solving the above-mentioned subject is,
A corrugated board made by assembling a development sheet made of reinforced cardboard material into a box shape,
The bottom plate,
Side plates that can be raised almost vertically on the left and right of the bottom plate,
And a wive plate that is raised almost vertically before and after the bottom plate,
On the lower side of the bottom plate, a reinforcing plate made of a flammable material that covers the plate surface of the bottom plate is provided.

  According to such a configuration, since the lower surface of the bottom plate is covered with the reinforcing plate, the corrugated paper surface of the bottom plate is protected by the reinforcing plate. For this reason, even if the corrugated board is placed on a roller, a base, or the like, the load does not cause wrinkles or dents on the plate surface of the bottom plate. Further, the reinforcing plate made of the combustible material can be easily incinerated together with the corrugated cardboard material. As a result, it is possible to facilitate handling during transport and use of the corrugated cardboard basket.

In the first device, it is desirable to employ a plywood having substantially the same shape as the bottom plate as the reinforcing plate. A “plywood” is obtained by stacking a plurality of thinly cut wooden veneers alternately in different fiber directions and bonding them by heat and pressure.
By adopting the plywood reinforcing plate in this way, the combustibility and load resistance of the corrugated board can be improved. Further, since cracks are unlikely to occur on the plate surface of the plywood, there is an advantage that the strength is not easily lowered even when a sewing needle is passed through the plate surface as will be described in the second invention described later.

In the first device, a compressed pulp board having substantially the same shape as the bottom plate may be employed as the reinforcing plate. The “compressed pulp board” is obtained, for example, by compressing a pulp raw material such as waste paper into a plate shape.
When using a compressed pulp material reinforcing plate, the same effect as the above-mentioned “plywood” can be obtained, and the paper can be unified with a paper material that excels in combustibility and light weight. A corrugated cardboard bowl that is gentle on the environment can be realized.
In addition, as a material for the reinforcing plate, synthetic resin or leather can be used.

[Second Device]
The cardboard box of the second device has the structure of the first device,
A decorative cloth is adhered to the side surfaces of the side plate and the end plate, and the reinforcing plate is sewn to the lower end portion of the decorative cloth.

  In the first device described above, as means for fixing the reinforcing plate to the bottom plate, an adhesive or a tucker (a tool for driving staples into the plate material) can be considered. In the case of using an adhesive, if a shearing force acts between the bottom plate and the reinforcing plate, there is a problem that the adhesive surfaces of both are easily peeled off. Moreover, when using a tucker, since the staple which fixes a bottom board and a reinforcement board is a metal, there exists a problem that it remains as a metal scrap at the time of incineration of a corrugated paper board.

On the other hand, a decorative cloth with a pattern or the like is often adhered to the surface of the cardboard box in order to cover the paper surface and enhance the texture. The decorative cloth is usually firmly fixed to the side plates and the side plates of the end plate with a relatively wide bonding surface.
In the second device, a reinforcing plate is sewn to such a decorative cloth to increase the fixing strength of the reinforcing plate to solve the above-described problems.

That is, according to the configuration of the second device, the reinforcing plate is sewed on the lower end portion of the decorative cloth, and is superposed on the lower surface of the bottom plate and stopped. Thereby, it can hold | maintain so that a reinforcement board may be lifted to the baseplate side with a decorative cloth, and the fixed state of a reinforcement board can be kept favorable.
Further, in the second device, by using a flammable thread for stitching the reinforcing plate and the decorative cloth, metal scraps such as staples are not left at the time of burning the bag.

As a procedure for adhering the decorative cloth, for example, a bag body is produced by sewing a decorative cloth on each side of the reinforcing plate in a cylindrical shape, and the cloth surface of the bag body is adhered to the side surface and the surface of the end plate. (Refer to << Bag-type procedure >>).
It is also possible to sew a decorative cloth on each side of the reinforcing plate in an unfolded manner, and to bond the cloth surfaces of these unfolded cloths to the plate surfaces of the side plate and the end plate, respectively (see << Expandable Procedure >> of the embodiment) .

  In the second device, an adhesive or a tucker may be used in combination as means for fixing the bottom plate and the reinforcing plate. By using these fixing means in combination, it is possible to further increase the fixing strength of the reinforcing plate. When a tucker is used, the number of staples is reduced as much as possible in order to suppress the generation of metal debris.

[First and second devices]
The corrugated cardboard cage of the first and second devices can be applied to a box-shaped cardboard basket made of reinforced cardboard material. There are no particular limitations on the use (such as for humans and pets) and the type (such as sleeping robes and seats) of cardboard baskets.

  The first and second devices may be applied independently as necessary, or these devices may be applied in combination. Moreover, you may combine the other idea described in this specification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the present invention is applied to a corrugated board made of three-layer reinforced corrugated cardboard.

[First Embodiment]
As shown in FIG. 1, the cardboard box 10 includes a box-shaped bag body 12 and a lid 13. A window 14 is provided at a position near the front of the lid 13, and the inside of the bag can be viewed by opening the door of the window 14. A plywood reinforcing plate 15 is fixed to the lower side of the main body 12.
The dimensions of the corrugated cardboard cage 10 are, for example, about 170 to 200 cm in length, about 50 to 70 cm in width, and about 40 to 50 cm in height including the bag body 12 and the lid 13.

  The scissors body 12 is raised substantially vertically to the bottom plate 12A, side plates 12B and 12B (left and right in FIG. 1) that are raised substantially vertically to the left and right sides (up and down in FIG. 1), and the bottom plate 12A. It has twelve plates 12C and 12C.

  As shown in FIG. 2, the bottom plate 12A, the side plates 12B and 12B, and the end plates 12C and 12C are assembled in a box shape by bending a development sheet P made of a reinforced cardboard material. The unfolded sheet P is provided with a rectangular bottom plate 12A at the center thereof, side plates 12B and 12B on the left and right sides of the bottom plate 12A, and end plates 12C and 12C on the front and rear sides of the bottom plate 12A, respectively. Bending vertical V grooves y and y are formed at the boundary between the bottom plate 12A and the side plates 12B and 12B, and horizontal V grooves x and x are formed at the boundary between the bottom plate 12A and the end plate 12C.

  When assembling the main body 12, the side plates 12B and 12B are bent substantially vertically along the vertical V grooves y and y on the left and right sides of the bottom plate 12A of the unfolded sheet P, and are raised to the horizontal V grooves x and x before and after the bottom plate 12A. Along with this, the end plates 12C and 12C are bent vertically and started up. Then, the side end surfaces are brought into close contact with each other and fixed with an adhesive, an adhesive tape or the like.

As the reinforced cardboard material, a three-layer reinforced cardboard material having a thickness of about 10 to 20 mm (for example, manufactured by Triwall) is employed. In this corrugated board material, as shown in [3] partial enlarged view of FIG. 2, three layers of corrugated plates r1 to r3 form partition plates r4 and r5 between two thick plates (liners) Rb and Rf. It is laminated. By impregnating the thick plates (liners) Rb and Rf with a resin material and reinforcing the plate surface, the pressure resistance and water resistance of the reinforced corrugated board are enhanced.
V-groove processing for bending is performed by cutting one of the thick plates Rf and Rb using these blades with a rotary blade or the like, or by using a press machine or the like to cut the corrugated board into a V-shaped cross section. This is done by compressing. When the corrugated board is bent, only the remaining one thick board (liner) is bent, and the inclined groove surfaces of the V groove are brought into close contact with each other. If V-groove processing is performed so that the groove angle of the V-groove is approximately 90 °, adjacent plates bend substantially vertically.

  A frame plate 12D is folded inwardly with a certain plate width on the side plates 12B and 12B and the top plates 12C and 12C (see FIG. 1). The frame plate 12D is provided at a constant plate width with W grooves (grooves formed by juxtaposing two rows of V-grooves cut at approximately 90 ° in parallel) at the left and right and front and rear ends of the spread sheet P. It has been. The frame plate 12D is bent by 180 ° by these W grooves and overlaps the inner end portions of the side plates 12B and 12B and the end plates 12C and 12C. The frame plate 12D serves to reinforce the upper end opening of the bag main body 12.

As shown in FIG. 4, a decorative cloth 16 is bonded to the plate surface of the heel body 12. The decorative cloth 16 is folded back at the upper end from the outer side to the inner side of the bag main body 12, and covers the plate surfaces of the side plate 12B, the end plate 13C, and the frame plate 12D. Even if the attendees of the funeral look at the cardboard box 10, they see not the surface of the cardboard paper but the surface of the decorative cloth 16.
Although not shown in FIG. 4, it is also possible to attach a decorative cloth so as to cover the corrugated paper surface inside the bag main body 12 as necessary.

  Although illustration is omitted, the lid 13 can also be formed by bending a development sheet made of a reinforced corrugated cardboard material in the same manner as the bag main body 12. For example, side plates 13B and 13B and end plates 13C and 13C are provided on the spread sheet assembled by the lid 13 by connecting inclined plates 13a to each side of a rectangular top plate 13A shown in FIG. Then, the same decorative cloth as that of the bag main body 12 is attached to the plate surface of the lid 13.

  As shown in FIG. 4, the reinforcing plate 15 is fixed to the decorative cloth 16 of the heel body 12 by a sewing thread 17 at the lower end portion thereof. A sewing thread 17 is sewn by a dedicated sewing machine in a state in which the decorative cloth 16 is stacked on the lower side of the reinforcing plate 15 with a certain width. The sewing thread 17 is made of a combustible material, and extends linearly in the vertical and horizontal directions along each side of the rectangular reinforcing plate 15.

  The reinforcing plate 15 has substantially the same shape as the bottom plate 12A and covers the lower surface of the bottom plate 12A. The thickness of the reinforcing plate 15 is smaller than the bottom plate 12A and is about several millimeters. An adhesive is applied to the contact surface of the reinforcing plate 15 with the bottom plate 12A. That is, the reinforcing plate 5 is fixed in a state where the reinforcing plate 5 overlaps the lower surface of the bottom plate 12A by the sewing thread 17 and the adhesive.

  Next, a method for fixing the reinforcing plate 15 and the decorative cloth 16 will be described. As a method of fixing the reinforcing plate 15 and the decorative cloth 16 to the heel body 12, the following bag type or unfolding type procedure can be used.

《Bag type procedure》
As shown in FIG. 5, side cloth 16j and end cloth 16k are used as the decorative cloth. First, a rectangular side cloth 16j is sewn to the left and right ends of the reinforcing plate 15, and a rectangular twill cloth 16k is sewn to the front and rear side ends of the reinforcing plate 15. Next, the end portions of the side cloth 16j and the twill cloth 16k are overlapped in the vicinity of the four corners of the reinforcing plate 15, and are sewn in a cylindrical shape in the vertical direction in FIG. 5 to form a bag state (bag body) surrounding the reinforcing plate 15.
In the bag shown in FIG. 5, each seam allowance of the side cloth 16j and the end cloth 16k is hidden in the bag. As a result, the seam allowance (the portion outside the sewing thread 17 of each cloth) is not exposed to the outside of the cardboard bag 10, and the aesthetics of the bag can be improved.

  As shown in FIG. 6, it is desirable that the sewing thread 17 of the reinforcing plate 15 is sewn in sets of two along each side of the rectangle. In this case, the interval between the two yarns is kept at a few millimeters, and two sewing threads 17 are used in total, two on the left and right sides of the reinforcing plate 15 and two on each of the front and rear. In this way, by binding a plurality of sewing threads 17 side by side at an appropriate interval, the bonding strength between the reinforcing plate 15 and the decorative cloth 16 can be increased, and the fixing reliability between the bottom plate 12A and the reinforcing plate 15 can be increased. Can be increased.

  Next, the bag body shown in FIG. 5 is turned upside down and the bag main body 12 is inserted inside thereof. Adhesive is applied to the contact surface between the bottom plate 12A and the reinforcing plate 15, and the two plates are stacked one above the other and fixed. At this time, an adhesive is also applied to the plate surfaces (corrugated cardboard surfaces) of the side plates 12B and the end plates 12C, and the side cloths 16j and the twill cloth 16k are attached to the corrugated cardboard surfaces of the respective cloth surfaces while pulling upward. Then, the portions of the side cloth 16j and the twill cloth 16k that are left above the heel body 12 are folded inward and attached to the plate surface (corrugated cardboard surface) of the frame plate 12D.

  According to the bag-type procedure, a bag body is prepared in advance with the reinforcing plate 15 and the decorative cloth 16, and this is combined with the bag main body 12. Therefore, the positioning of the bottom plate 12A and the reinforcing plate 15 is simple, The seam between the cloth 16j and the twill cloth 16k coincides with the corners of the heel body 12, and the appearance is improved.

《Expandable procedure》
As a method for fixing the reinforcing plate 15 and the decorative cloth 16 to the heel body 12, the side cloth 16 j and the twill cloth 16 k are sewn to the reinforcing board 15, and then the respective cloths are sequentially attached to the heel body 12 from the unfolded state. You may make it go.

  As shown in FIG. 8, first, the side cloth 16j and the end cloth 16k are sewn to the left and right side ends and the front and rear side ends of the reinforcing plate 15, respectively, and the unfolded state is maintained. An adhesive is applied on the reinforcing plate 15 and the heel body 12 is stacked and pasted. From this state, as shown in FIG. 9, the side cloth 16j and the twill cloth 16k are sequentially bonded to the outer and inner corrugated cardboard surfaces of the bag body 12 while pulling upward.

  According to the unfolding procedure, it is not necessary to sew the seam between the side cloth 16j and the end cloth 16k, so that the labor of the work can be saved. Further, since the side cloth 16j and the twill cloth 16k can be attached to the corrugated paper surface of the bag main body 12 while being pulled, the adhesion of the adhesive surface can be improved.

Next, the operation of the reinforcing plate 15 will be described.
FIG. 10 shows an example of a conveyor provided in the carriage of the hearse. The conveyor 18 is provided with a conveying roller 18a that is rotatable at a predetermined interval in the length direction. When transporting the cardboard box 10, the cardboard box 10 is moved back and forth on the conveyor 18 while rolling on the roller 18 a.
When the corrugated board 10 is placed on the conveyor 18, each roller 18a hits the reinforcing plate 15, so that the corrugated paper surface of the bottom plate 12A is prevented from being depressed by the roller 18a. For this reason, the corrugated cardboard basket 10 moves smoothly on the roller 18a, so that the work in and out can be comfortably performed.

  Further, as shown in FIG. 11, when the cardboard box 10 is placed on the table 19, the load of the cardboard box 10 is concentrated on the upper surface of the table 19, but the bottom plate 12A is protected by the reinforcing plate 15, so that the bottom plate No wrinkles or dents are left on the corrugated paper surface of 12A due to the gantry 19. Further, the reinforcing plate 15 can assist the horizontal posture of the corrugated cardboard cage 10 to suppress the bottom plate 12A from being bent downward. Thereby, it becomes possible to place the cardboard box 10 on the table 19 for a long time with peace of mind.

As described above, according to the corrugated cardboard cage 10, the reinforcement plate 15 can effectively prevent wrinkles and dents in the bottom plate 12 </ b> A.
Further, since the reinforcing plate 15 is sewn to the lower end portion of the decorative cloth 16, even if the adhesive surface between the heel body 12 and the reinforcing plate 15 is peeled off, the decorative cloth 16 holds the reinforcing plate and reinforces from the heel body 12. There is no worry of the plate 15 coming off.
As a result, the cardboard box 10 can be easily handled during transportation and use, and the strength and durability equal to or higher than that of a conventional wooden box are used while taking advantage of the lightweight and easy-to-assemble cardboard material. It becomes possible to provide a high-quality corrugated cardboard cage having the characteristics.

[Second Embodiment]
Next, a second embodiment of the present invention is shown in FIGS.
The corrugated cardboard cage 20 of the second embodiment adopts an octagonal cage shape when viewed from the plane. At the four corners of the heel body 12, chamfered plates 12b that are inclined by approximately 45 ° with respect to the plate surfaces of the side plate 12B and the end plate 12C are provided. At the four corners of the lid 13, chamfered plates 13b having inclinations corresponding to the chamfered plates 12b are provided.

An octagonal reinforcing plate 25 is fixed to the lower side of the bag main body 12. The reinforcing plate 25 is made of plywood and has substantially the same shape as the bottom plate 12A of the main body 12, and the dimensions of each side of the octagon coincide with the dimensions of each side of the bottom plate 12A.
A decorative cloth (not shown in FIG. 12) is bonded to the surfaces of the heel body 12 and the lid body 13. A reinforcing plate 25 is fixed to the lower end portion of the decorative cloth of the heel body 12 with a sewing thread.

As a method of fixing the reinforcing plate 25 and the decorative cloth to the heel body 12, for example, the unfolding procedure of the first embodiment is used.
Specifically, as shown in FIG. 13, a side cloth 26j and a twill cloth 26k are used. First, the side cloth 26j and the end cloth 26k are sewn to the left and right side ends and the front and rear side ends of the reinforcing plate 25, respectively, and are maintained in the unfolded state. An adhesive is applied on the reinforcing plate 15, and the bag body 12 is laminated and pasted. From this state, the outer and inner corrugated cardboard sheets of the bag body 12 are sequentially pulled while pulling the side cloth 26j and the twill cloth 26k upward. Adhere to.

  As described above, also in the second embodiment, the bottom plate 12A of the heel body 12 is protected by the reinforcing plate 25, so that the heel and the dent of the bottom plate 12A are prevented. As a result, even when the cardboard box 20 is placed on the conveyor of the hearse or placed on the cardboard box, the cardboard box 20 can be handled with peace of mind.

[Modification]
Although 1st and 2nd embodiment was described, embodiment of this invention is not limited to these, You may involve various deformation | transformation and change as follows.
For example, in the first and second embodiments, the reinforcing plates 15 and 25 may be formed of a combustible material such as compressed pulp, synthetic resin, and leather instead of the plywood. Further, the frame plate 12D is not necessarily provided, and may be omitted as necessary.
In the first and second embodiments, the present invention is applied to the bottom plate 12A of the bag main body 12. However, when the strength of the lid body 13 is increased, the present invention is applied to the top plate 13A of the lid body 13. Also good.
Further, the corrugated cardboard material for producing the corrugated cardboard cage is not limited to the three-layer reinforced corrugated cardboard, and may be other multilayer corrugated cardboard material, a corrugated cardboard material having a honeycomb structure, or the like.
The bottom plate 12A, the side plate 12B, and the end plate 12C do not necessarily have to be arranged on one spread sheet, and may be produced by dividing them into two or more sheets.

It is a disassembled perspective view which shows the corrugated board bag of 1st Embodiment of this invention. It is the partially cutaway top view which shows the expansion | deployment sheet | seat for assembling the bag main body of the corrugated board bag, and the end elevation of the broken line direction. FIG. 3 is a partially enlarged schematic sectional view showing a section [3] of FIG. 2, showing a section of the corrugated cardboard material of the corrugated board cage. It is an exploded sectional view showing the corrugated cardboard cage. It is a perspective view which shows the assembly procedure (bag type) of the corrugated board bag, and shows a mode that the decorative cloth was sewed on the reinforcement board. It is the elements on larger scale which show the [6] part of FIG. It is a perspective view which shows the assembly procedure (bag type) of the corrugated board bag, and shows a mode that a reinforcement board and a decorative fabric are fixed to the bag main body. It is a perspective view which shows the assembly procedure (development type) of the corrugated board bag, and shows a state in which a decorative cloth is sewn on a reinforcing plate. It is a perspective view which shows the assembly procedure (development type | formula) of the corrugated board bag, and shows a mode that a reinforcement board and a decorative fabric are fixed to the bag main body. FIG. 10 is a side view for explaining the operation of the reinforcing plate of the corrugated cardboard cage and showing a state in which the corrugated cardboard cage is placed on the conveyor of the hearse wheel. It explains the action of the reinforcing plate of the corrugated cardboard basket, and is a side view showing a state in which the corrugated cardboard bowl is placed on the base. It is a disassembled perspective view which shows the corrugated board bag of 2nd Embodiment of this invention. It is a perspective view which shows the assembly procedure (development type | formula) of the corrugated board bag, and shows a mode that a reinforcement board and a decorative fabric are fixed to the bag main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Corrugated cardboard 12 棺 Main body 12A Bottom plate 12B, 12B Side plate 12C Side plate 12D Frame plate 13 Cover body 14 Window frame 15 Reinforcement plate 16 Cosmetic cloth 16j Side cloth (decorative cloth)
16k wife cloth (decorative cloth)
18 Conveyor 18a Roller 19 Stand 20 Corrugated board 25 Reinforcement plate 26j Side cloth (decorative cloth)
26k wife cloth (decorative cloth)
x Horizontal V groove y Vertical V groove

Claims (6)

A corrugated board made by assembling a development sheet made of reinforced cardboard material into a box shape,
The bottom plate,
Side plates that can be raised almost vertically on the left and right of the bottom plate,
And a wive plate that is raised almost vertically before and after the bottom plate,
A corrugated cardboard bag, wherein a reinforcing plate made of a flammable material is provided below the bottom plate to cover the plate surface of the bottom plate.   The corrugated cardboard trough according to claim 1, wherein the reinforcing plate is made of a plywood having substantially the same shape as the bottom plate.   The corrugated cardboard bowl according to claim 1, wherein the reinforcing plate is formed of a compressed pulp board having substantially the same shape as the bottom plate.   The cardboard box according to any one of claims 1 to 3, wherein a decorative cloth is bonded to a plate surface of the side plate and the end plate, and the reinforcing plate is sewn to a lower end portion of the decorative cloth. .   5. A corrugated cardboard bag according to claim 4, wherein a bag is produced by sewing a decorative cloth on each side of the reinforcing plate in a cylindrical shape, and the cloth surface of the bag is bonded to the side surfaces of the side plate and the end plate. , Cardboard box.   5. A corrugated cardboard bag according to claim 4, wherein a decorative cloth is sewn into each side of the reinforcing plate in an unfolded form, and the cloth surfaces of these spread cloths are bonded to the side surfaces of the side plate and the end plate, respectively.

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