JPH0726105Y2 - Multi-hole core material - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a corrugated board including a liner and a core material,
Alternatively, it relates to a multi-hole core material used as a core member of a honeycomb panel or the like.

[Conventional technology]

The conventional core material has a honeycomb structure and is lightweight, but is resistant to bending and compression, and is therefore used as a structural material for vehicles, aircraft members, construction materials and the like.

The cross-sectional structure of the honeycomb is various, and it is divided into hexagon, square, sine wave, offset hexagon, double wave, etc.
Paper, plastic plate, and aluminum or steel thin plate (steel) are often used. Regarding the use of this core material, generally, a honeycomb sandwich structure is taken, and it is cut along the cross section of the honeycomb to be formed into a plate shape, and is used as a plate material in which face plates thinner than that are attached to both surfaces thereof. , For example, in aircraft and buildings, ceilings, sidewalls,
Used for partition walls, doors, etc.

In addition, the core material of corrugated cardboard, which is made by stacking paper corrugated boards in multiple stages and integrating them, is a sliding material for the sliding doors, partitions, panels, floors,
It is used in many fields such as door reinforcements, ceiling reinforcements and filters.

[Problems to be Solved by the Invention] Among the conventional core materials as described above, the core material having a honeycomb structure is inevitably costly because it is not easy to manufacture.

In addition, the core material of corrugated board has a limit in strength because it is made of paper, and its use is extremely limited because it is weak against moisture, water, and fire. In particular, it is often used in construction, but from the viewpoint of safety, paper that is more and more inflammable and harder to burn is required in recent years, and therefore paper is a problem. Further, since the material is lightweight, it is poor in soundproofing, and in order to use it as a wall material in a place where soundproofing is required, it is also necessary to improve it in that respect.

In view of the above situation, the present invention focuses on a corrugated cardboard core material that can be manufactured at a low cost because it is relatively easy to manufacture and suitable for mass production, and is stronger than conventional ones, resistant to moisture, water, and fire, It is intended to provide a multi-hole core material for a corrugated board structure which is also excellent in soundproofing.

[Means for Solving the Problems]

The configuration of the present invention for achieving the above object is to form at least the core of a corrugated corrugated plate core and a plate liner of corrugated board by a metal thin plate or a laminated plate of a metal thin plate and another material, The gist is that the corrugated cardboards are stacked, integrated in multiple stages, and cut into a plate shape along the stacking direction.

[Action]

According to the above configuration, since the corrugated board is a stacked structure, it is formed into a plate shape by cutting in the stacking direction in manufacturing, but a load is applied in the thickness direction of the plate body. In this case, a very large load bearing capacity is obtained mainly by the corrugated (corrugated) structure of the thin metal plate having the core.

In addition, since the metal thin plate is resistant to moisture and water, even if it gets wet with water, the load bearing capacity of the corrugated structure of the core metal thin plate is not lost, and if other materials other than metal are used. Also, the required strength as the core material is stably maintained.

Regarding the flammability, it goes without saying that the thin metal plate of the core does not burn, and even if other flammable materials are used, the thin metal plate of the core hinders the combustion.

As for soundproofing, since the metal plate is heavy, the sound is absorbed as a small vibration that does not easily spread to other parts, so that the sound absorption rate is high.

Suitable materials for the thin metal plate include iron, electrolytic steel, aluminum, stainless steel, copper and the like.

Among the core and the liner, at least a corrugated plate-shaped core is a metal thin plate or a laminated plate in which another material is laminated on the metal thin plate is used, but as other materials, base paper for liner, kraft paper, nonwoven fabric, Non-combustible paper, PP, PE, PET, P
Examples thereof include synthetic resins such as VA.

The liner may be made of the same material as the core,
Instead of using the metal thin plate, the above-mentioned paper or synthetic resin alone structure or a composite structure thereof may be used.

The corrugated board is not limited to double-sided corrugated board, single-sided corrugated board, double-sided corrugated board, and the like, and its structure is not a problem. As for the stacking, the same corrugated board structure may be stacked, but different corrugated board structures may be stacked, or even if the corrugated board structure is the same, the size of the core corrugated It is also possible to stack different materials or materials having different materials, which makes it possible to absorb sounds of various frequencies, so that the soundproofing effect can be particularly enhanced.

An adhesive can be used to integrate the upper and lower corrugated cardboards, but in the case of joining metals, the joining surfaces can be joined by resistance welding, spot welding, or the like.

As a use, since it can be used as a core member such as a corrugated board and a conventional honeycomb panel made of a conventional liner and a honeycomb panel, and has a large load resistance and fire resistance,
A wide variety of fields of application are possible. For example, it is particularly suitable for reinforcing materials for fusuma, partitions, panels, filters, doors, floors, ceilings, desks, etc., heat exchangers, reinforcing materials for aircraft, automobiles, trains, pallets and the like.

〔Example〕

Next, a typical embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of the multi-hole core material C.
Is a single-sided corrugated cardboard Fa made up of a corrugated (corrugated) structure core 1 and a flat plate-shaped liner 2 each formed of a thin metal plate 5, for example, an aluminum plate or an iron plate, and they are sequentially bonded in the vertical direction. However, in the uppermost stage, double-faced corrugated board Fb is used because it is necessary to seal the upper surface with the liner 3.

Assembling of the corrugated board structure and stacking of the corrugated board Fa and Fb are described in the core 1 and the liners 2 and 6 below.
The laminated plate P shown in the figure is used, and is heat-welded with the synthetic resin layers 10 and 10 on both sides of a thin metal plate 5, for example, an aluminum plate.

When the core material C is configured in this way, it has a large strength as a whole and is difficult to burn, and thus is suitable for a building material such as a floor material that is easily subjected to a load.

FIG. 2 is also constructed by stacking a single-sided corrugated board Fa and a double-sided corrugated board Fb, but in this case, the waves of the core 1 are vertically shifted by half a pitch.

In this case, since the wave crests abut on each other at the top and bottom, the sectional structure is extremely stabilized.

In this case, the core 1 and the liners 2 and 3 are
A thin plate in which papers 6, 6 are laminated on both sides of a thin metal plate 5 of electrolytic steel is used (Fig. 8). Therefore, by a corrugated machine that produces ordinary paper corrugated board,
Mass production of corrugated cardboard Fa, Fb, and upper and lower corrugated cardboard Fa, Fb
Water resistant cornstarch of starch paste, which is cost-effective for adhering to, can be used.

FIG. 3 is an assembly in which only double-sided corrugated board Fa, Fb, ... are laminated and assembled. In each corrugated board Fb, an aluminum plate or an iron thin plate is used for the core 1 and both liners 2, 3 (FIG. 1), The upper and lower corrugated boards Fb, Fb are bonded by spot welding or the like.

When the aluminum plate or the like is the main material as described above, it is lightweight and is particularly suitable as a wall material for an aircraft or a vehicle.

Material of core / liner FIGS. 4 to 9 show core 1 and liner 2, respectively.
3 shows an example as a material, the metal thin plate 5 is alone in FIG. 4, but a synthetic resin layer 10 is formed on the metal thin plate 5 in FIG. The synthetic resin layer 10 can be formed by coating or laminating, and the laminating can be performed by an extrusion laminating method, a method of heat welding a PP or PE film, or the like. Then, the synthetic resin layer 10 can be conveniently used for bonding for assembling a corrugated board structure and for bonding corrugated boards.

Further, in FIG. 6, the synthetic resin layer 1 is formed on both surfaces of the thin metal plate 5.
Since 0 and 10 are formed, it is convenient to use the layer.

In FIG. 7, the paper 6 is laminated on one surface of the thin metal plate 5. Since water-resistant cornstarch can be used as an adhesive for the paper, it is also convenient in this case for assembling a corrugated board structure or a laminated corrugated board structure.

Further, in FIG. 8, the papers 6 are applied to both sides of the thin metal plate 5, which is more convenient.

In FIG. 9, the synthetic resin layer 10 is formed on one surface of the thin metal plate 5, and the paper 6 is laminated on the other surface. In this case, various bonding means can be used for assembling the corrugated board structure and assembling the corrugated board stack.

[Effect of the Invention] As described above, according to the multi-hole core material of the present invention,
Corrugated cardboard consisting of a core and a flat liner is stacked in multiple stages and cut in the stacking direction to form a plate. In particular, since the corrugated plate-shaped core having a load-bearing structure is formed by a metal thin plate or a laminated plate of a metal thin plate and another material, when a load is applied in the thickness direction of the plate body, the core metal is mainly used. The thin corrugated structure provides very high load carrying capacity.

In addition, since the metal thin plate is resistant to moisture and water, even if it gets wet with water, the load bearing capacity of the corrugated structure of the core metal thin plate is not lost, and if other materials other than metal are used. Also, the required strength as the core material is stably maintained.

Regarding the flammability, it goes without saying that the thin metal plate of the core does not burn, and even if other flammable materials are used, the thin metal plate of the core hinders the combustion.

As for soundproofing, since the metal plate is heavy, the sound is absorbed as a small vibration that does not easily spread to other parts, so that the sound absorption rate is high.

The multi-hole core material of the present invention was used as a building material, a material for aircraft and vehicles, and a logistics material such as packaging and pallets, in place of a core material such as corrugated board or honeycomb panel made of a conventional liner and core material. In this case, in addition to the above effects, there is also an excellent effect that it can be provided at low cost.

[Brief description of drawings]

1 to 3 are perspective views showing different embodiments, and FIGS. 4 to 9 are explanatory views showing different examples as materials for the core and the liner. C: Multi-hole core material, P: Laminate plate 1 ... Core, 2, 3 ... Liner, 5 ... Metal thin plate

Claims (1)

[Scope of utility model registration request] 1. A corrugated cardboard core and a plate liner of corrugated board, at least the core is formed of a metal thin plate or a laminated plate of a metal thin plate and another material, and the corrugated boards are stacked and integrated in multiple stages. , A multi-hole core material that is cut into a plate shape along the stacking direction.