JP7124324B2 - Packing structure using cardboard materials - Google Patents

Description

TECHNICAL FIELD The present invention relates to a corrugated board member and a method for manufacturing the corrugated board member.

A corrugated board having a structure in which a corrugated core is attached to a flat liner is cut and formed into a predetermined shape, and the cut edge of the formed corrugated board where at least the corrugated core is exposed is crushed. A method of manufacturing a corrugated board member is known in which the cavity between the core and the liner exposed from the cut edge is closed (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2007-230063

However, in the method of manufacturing a corrugated board member as disclosed in Patent Document 1, the corrugated sheet core is crushed as it is. The corrugated core is intended to improve the strength of the corrugated cardboard, and high pressure is required to cleanly crush the corrugated cardboard. In addition, the core that has been crushed as it is has a restoring force to return to the original corrugated sheet shape. This restoring force may create a gap between the core and the liner over time.

The present invention has been made to solve such problems. The object is to provide a corrugated cardboard member and a method for manufacturing a corrugated cardboard member that can easily close the gap between the core and the liner on the end face and suppress the gap from occurring between the core and the liner over time. to do.

A packaging structure using corrugated board members according to the present invention comprises laminated corrugated board on which a product is arranged, wherein the laminated corrugated board includes a corrugated board member arranged at the bottom and a product on the corrugated board member at the bottom. The corrugated cardboard member of the laminated corrugated cardboard includes a core, a front liner bonded to the surface of the core, and a back surface of the core a back liner, wherein the core includes a corrugated plate portion having a corrugated cross section, and a front flat plate portion and a back flat plate portion branched into a front side and a back side at one end side of the corrugated plate portion, respectively. , wherein the corrugated board member further comprises a contact means for adhering the front liner, the front flat plate portion, the back flat plate portion, and the back liner.

According to the corrugated board member and the method for manufacturing the corrugated board member according to the present invention, the gap between the core and the liner on the end face can be easily closed, and the formation of the gap between the core and the liner over time can be suppressed. It has the effect of being possible.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows typically the structure of the manufacturing apparatus using the manufacturing method of the corrugated board member which concerns on Embodiment 1 of this invention. 1 is a view showing one end surface of a base paper for corrugated board used in the method for manufacturing a corrugated board member according to Embodiment 1 of the present invention; FIG. It is a figure which shows the state in the middle of manufacturing a corrugated board member by the manufacturing method of the corrugated board member based on Embodiment 1 of this invention using the manufacturing apparatus of FIG. It is a figure which shows the one end surface of the corrugated board member which concerns on Embodiment 1 of this invention. 1 is a side view of a corrugated board member according to Embodiment 1 of the present invention; FIG. It is a figure which shows the usage example of the corrugated-cardboard member which concerns on Embodiment 1 of this invention.

Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions are appropriately simplified or omitted. The present invention is not limited to the following embodiments, and can be modified in various ways without departing from the scope of the present invention.

Embodiment 1.
1 to 6 relate to Embodiment 1 of the present invention, FIG. 1 is a perspective view schematically showing the configuration of a manufacturing apparatus using a method for manufacturing a corrugated board member, and FIG. 2 is a method for manufacturing a corrugated board member. FIG. 3 is a diagram showing a state in the middle of manufacturing a corrugated board member by the manufacturing method of the corrugated board member using the manufacturing apparatus of FIG. 1, and FIG. FIG. 5 is a side view of a corrugated board member, and FIG. 6 is a diagram showing an example of use of the corrugated board member.

A manufacturing apparatus 10 using the method for manufacturing a corrugated board member according to Embodiment 1 of the present invention manufactures a corrugated board member from a base paper 20 for corrugated board, as shown in FIG. First, referring to FIG. 2, a corrugated board base paper 20 used in the method for manufacturing a corrugated board member according to Embodiment 1 of the present invention will be described.

As shown in FIG. 2, the corrugated board 20 comprises a core 21 , a front liner 22 and a back liner 23 . The core 21 is corrugated paperboard. That is, the cross section of the core 21 is wave-shaped. Both the front liner 22 and the back liner 23 are, for example, flat paperboard. A front liner 22 is adhered to the surface of the core 21 . Back liner 23 is adhered to the back surface of core 21 . In the corrugated board base paper 20, there are gaps 24 between the front liner 22 and the core 21 and between the back liner 23 and the core 21, as shown in the figure. In particular, at the end face of the corrugated base paper 20 where the corrugated cross section of the core 21 is exposed, the void 24 is also exposed to the outside of the corrugated base paper 20 .

As shown in FIG. 1, the manufacturing apparatus 10 includes a table 11, a cutter 12, an adhesive supply device 13 and rollers . A cardboard base paper 20 is placed on the table 11. - 特許庁The cardboard base paper 20 on the table 11 is conveyed in a constant direction at a constant speed by a feeding device (not shown). The conveying direction of the corrugated board 20 is parallel to the end surface of the corrugated board 20 where the corrugated cross section of the core 21 is exposed. In the example shown in FIG. 1, the base paper 20 for corrugated board is conveyed from left to right on the plane of the paper. A cutter 12, an adhesive supply device 13, and a roller 14 are arranged in this order along the direction in which the corrugated board 20 is conveyed.

A method for manufacturing a corrugated board member carried out by the manufacturing apparatus 10 includes a cutting process, an injection process, and a crimping process. Next, referring to FIG. 3 in addition to FIG. 1, a specific relationship between these steps and the configuration of each part of the manufacturing apparatus 10 will be described.

In this manufacturing apparatus 10 , the cutting process is performed by the cutter 12 . The cutter 12 is arranged so as to come into contact with the core 21 of the cardboard base paper 20 on the table 11. - 特許庁As the cardboard base paper 20 is conveyed on the table 11 , the cutter 12 cuts the core 21 with a constant width from the end surface of the cardboard base paper 20 .

In this way, the cutter 12 cuts between the front liner 22 and the back liner 23 of the core 21 with a preset width from the end surface of the corrugated base paper 20 where the corrugated cross section of the core 21 is exposed toward the back. disconnect. That is, in the cutting step, the front liner 22 and the back liner 23 of the core 21 are cut at a preset width from the end surface of the corrugated base paper 20 where the corrugated cross section of the core 21 is exposed toward the back. It is a process.

In this manufacturing apparatus 10 , the injection process is performed by an adhesive supply device 13 . The adhesive supply device 13 supplies adhesive from a nozzle. The nozzle of the adhesive supply device 13 is inserted between the front liner 22 and the back liner 23 of the corrugated board 20 . At this time, the nozzle of the adhesive supply device 13 is inserted into the portion where the core 21 has been cut by the cutter 12 .

Then, the adhesive supply device 13 injects the adhesive between the front liner 22 and the back liner 23 at the portion where the core 21 is cut by the cutter 12 from the nozzle. That is, the injection step is a step of injecting the adhesive between the front liner 22 and the back liner 23 where the core 21 has been cut. This implantation step is performed after the cutting step. Since the core 21 has already been cut by the cutter 12, the adhesive can be easily injected between the front liner 22 and the back liner 23. - 特許庁

In this manufacturing apparatus 10 , the pressing process is performed by a pair of rollers 14 . The rollers 14 are arranged on the front liner 22 side and the back liner 23 side, respectively. The pair of rollers 14 are installed with a distance corresponding to the thickness when the corrugated board 20 is crushed. The pair of rollers 14 rotate in opposite directions to match the above-described conveying direction so that the corrugated board base paper 20 can be picked up.

After the adhesive is injected by the adhesive supply device 13 , the roller 14 presses the cut portion of the core 21 from the outside of the front liner 22 and the back liner 23 . That is, the crimping step is a step of pressing the cut portion of the core 21 from the outside of the front liner 22 and the back liner 23 after the injection step.

Next, the corrugated cardboard member 30 manufactured by the manufacturing apparatus 10, that is, the manufacturing method described above will be described with reference to FIGS. 4 and 5. FIG. A corrugated board member 30 manufactured from the corrugated board base paper 20 also includes a core 21 , a front liner 22 and a back liner 23 like the corrugated board base paper 20 . In the corrugated board member 30 manufactured through the cutting process, the injection process, and the crimping process described above, as shown in FIGS. The side of the end face that was once crushed.

The core 21 of the corrugated board member 30 is provided with a corrugated plate portion 34 , a front flat plate portion 31 and a back flat plate portion 32 by partially cutting and crushing the core 21 . The corrugated plate portion 34 is a portion of the core 21 of the corrugated board 20 that remains without being crushed. That is, the corrugated plate portion 34 has a corrugated plate shape, and the cross section of the corrugated plate portion 34 has a corrugated shape.

In particular, as shown in FIG. 5 , one end side of the corrugated plate portion 34 is cut by the cutter 12 and branched into a front side and a back side by a notch 35 . One side of the branched front liner 22 is the front flat plate portion 31 . The other side of the branched back liner 23 is the back flat plate portion 32 . Each of the front flat plate portion 31 and the back flat plate portion 32 has a flat plate shape.

The front liner 22 , the front flat plate portion 31 , the back flat plate portion 32 and the back liner 23 are pressure-bonded with an adhesive 33 . In other words, the adhesive 33 is an adhesive means for adhering the front liner 22, the front flat plate portion 31, the back flat plate portion 32 and the back liner 23 together.

In this manner, the exposed end face of the corrugated cross section of the core 21 at the stage of the corrugated board 20 is closed in the corrugated board member 30 as shown in FIG. Therefore, the voids 24 exposed in the corrugated board base paper 20 of FIG. Therefore, according to the packing using the corrugated cardboard member 30 according to the first embodiment of the present invention, it is possible to prevent foreign substances such as dust and sand or harmful insects from entering the corrugated cardboard sheet during physical distribution and storage. It can be prevented.

Further, when crushing, the core 21 is cut to form the front flat plate portion 31 and the back flat plate portion 32 . Therefore, the resistance to crushing is small, and the roller 14 can be easily crushed, for example, with a light force. That is, the gap between the core 21 and the liner on the end face can be easily closed.

In the crushed portion of the cardboard member 30 , the core 21 is cut to form a front flat plate portion 31 and a back flat plate portion 32 . Such front flat plate portion 31 and back flat plate portion 32 no longer have the restoring force to return to the corrugated plate shape. Therefore, it is possible to prevent a gap from forming between the core 21 and the liner over time.

FIG. 6 shows a specific example of packing using the cardboard member 30 configured as described above. The figure shows an example of packing a product 40 using a corrugated board member 30 and a corrugated board base paper 20 . Product 40 is, for example, a straight sirocco fan. The product 40 is placed on a laminated corrugated board in which the corrugated board member 30 and the corrugated board base paper 20 are laminated. The product 40 and the laminated corrugated cardboard are fastened with a band 50, for example.

The bottom of the laminated corrugated board is the corrugated board member 30 . A corrugated board base paper 20 is laminated on the corrugated board member 30 so as to match the outer shape of the product 40 . In particular, the lowermost portion of the package is often in contact with the ground or floor surface, and is considered to have many chances of entry of foreign substances such as dust and sand or insect pests. By using the corrugated cardboard member 30 at the lowermost part of the packing, it is possible to prevent foreign matter such as dust and sand, or harmful insects from entering the corrugated cardboard.

It should be noted that the entire laminated corrugated board may be composed of the corrugated board member 30 without using the corrugated board base paper 20 . By doing so, it is possible to further prevent foreign matter such as dust and sand, or harmful insects from entering the cardboard.

Next, a modification of the method for manufacturing a corrugated board member according to Embodiment 1 of the present invention will be described. In the example described so far, the corrugated board member 30 is manufactured by a manufacturing method in which the cutting process, the injection process, and the crimping process are performed in this order. However, for example, the following modification of the manufacturing method (hereinafter also simply referred to as modification) may be used for manufacturing. This modification includes a cutting step, a crushing step, and a crushing maintenance treatment step.

The cutting process of the modified example is the same as the cutting process of the manufacturing method described above. That is, in the cutting step, the front liner 22 and the back liner 23 of the core 21 are cut at a preset width from the end surface of the corrugated base paper 20 where the corrugated cross section of the core 21 is exposed toward the back. It is a process. This step can be performed using, for example, the cutter 12 in the same manner as in the manufacturing method described above.

The crushing step is a step of crushing the cut portion of the core 21 from the outside of the front liner 22 and the back liner 23 . This step can be performed using the roller 14 used in the manufacturing method described above.

The crushing maintenance treatment step is a step of applying a crushing maintenance treatment to maintain the state crushed by the crushing step. The crushing maintenance process is specifically, for example, one of the following processes.

・Apply adhesive to the crushed end face ・Apply tape over the crushed end face and the front liner 22 and the back liner 23 adjacent to the end face ・Stap the crushed portion at regular intervals

Note that the adhesive, tape, and staples used in the crushing maintenance treatment serve as the adhesion means described above. That is, the front liner 22, the front flat plate portion 31, the back flat plate portion 32, and the back liner 23 are brought into close contact with each other by the adhesive, tape, or staple used in the crushing maintenance treatment. The edges of the cardboard member 30 are kept crushed by adhesive, tape, or staples.

Also in the above modified example, the same effect as the above-described manufacturing method in which the cutting process, the injection process, and the crimping process are performed in this order can be obtained.

10 manufacturing device 11 unit 12 cutter 13 adhesive supply device 14 roller 20 cardboard base paper 21 core 22 front liner 23 back liner 24 void 30 cardboard member 31 front flat plate portion 32 back flat plate portion 33 adhesive 34 corrugated plate portion 35 notch 40 product 50 bands

Claims (1)

comprising a laminated corrugated board on which the product is placed,
The laminated corrugated cardboard comprises a corrugated cardboard member arranged at the bottom, and a corrugated board base paper or a corrugated cardboard member laminated on the corrugated board member at the bottom according to the outer shape of the product,
The cardboard member of the laminated cardboard is A core, a front liner adhered to the surface of the core, and a back liner adhered to the back surface of the core,
The core includes a corrugated plate portion having a corrugated cross section, and a front flat plate portion and a back flat plate portion branched into a front side and a back side at one end side of the corrugated plate portion, and each having a flat plate shape,
The cardboard member is It further comprises an adhesion means for adhering the front liner, the front flat plate portion, the back flat plate portion and the back liner in close contact.Packing structure.

Images