JPH11348158A - High rigidity panel - Google Patents

Abstract

(57) [Problem] To provide a laminated panel having excellent rigidity and light weight in any direction and suitable for use on floors and walls of structures and the like. A laminated panel is formed by laminating two or more panels having a large number of convex portions, and three or more other panels combined with the convex portions of each panel in an intermediate portion excluding an end portion of the panel. The high rigidity panel is characterized in that all the convexities of the panel to be joined and joined together are continuously joined. When combining the above pair of panels, each panel has three projections on the other panel,
Alternatively, it is desirable to be joined to four projections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-rigidity panel used for floors, walls, ceilings or roofs of structures such as building materials, aircraft and vehicles, and more particularly to a panel having a large number of projections. The present invention relates to a laminated panel which is configured by being overlapped, is lightweight, and has high rigidity in any direction.

[0002]

2. Description of the Related Art Conventionally, a honeycomb structure (honeycomb core) is widely used as a structural material used for panels of structures such as building materials, aircraft, and vehicles. Metal is mainly used as a material constituting the honeycomb structure, and the thickness of the metal itself is extremely thin, about 50 μm to 100 μm. Usually, a load is applied to a panel used for a structure in a state where both ends are supported, and both ends are supported. In such a case, the honeycomb structural panel structural material is structurally stuck on the upper and lower surfaces of the honeycomb structure without deformation, showing rigidity even with a thin metal and maintaining a predetermined shape. can do.

[0003] As described above, since a large resistance can be exerted against the bending load applied to the structural material, the honeycomb structural panel structural material exhibits excellent characteristics of being lightweight and having high rigidity. be able to. Further, since the honeycomb structure constitutes a continuous body in which the structure itself is integrated, it is possible to exhibit a large resistance to a shear load.

[0004] However, in order to manufacture a panel structural material having this honeycomb structure, gluing → planographic cutting → lamination → pressing → cutting is required and many manufacturing steps are required. Material waste is also great. Furthermore, in terms of productivity, for example, when bonding a honeycomb structure member and a surface material provided so as to cover both surfaces thereof, the cut structural member is fixed in a predetermined shape and size. Since a complicated work of bonding is required, efficiency is limited, and there is a problem that productivity is significantly reduced.

[0005] In order to solve the above-mentioned problems in the production of the honeycomb structural panel structural material, Japanese Patent Laid-Open No. Hei 6-316015 discloses a panel having sufficient strength as a wall panel for a structure, etc. In addition, a metal panel excellent in productivity has been proposed. That is, the proposed metal panel has a structure composed of a structural material having a large number of convex portions formed thereon and a surface material adhered to both surfaces thereof. And a continuous space portion.

[0006] Since this metal panel has a large number of cellular portions in the intermediate layer, the load can be dispersed when a load is applied, similarly to a honeycomb-structured panel structure. High strength against load can be exhibited. Also, in the manufacture of panels, a simple process is used in which a thin metal material such as aluminum is formed, and a large number of protrusions are formed on the thin metal material by drawing or overhanging, and the surface material is bonded to both surfaces. It is said that high productivity can be realized.

However, the proposed metal panel does not consider rigidity against bending deformation, and has a problem that the rigidity is insufficient as a structural material. As mentioned above,
The intermediate layer of the metal panel has a structure including a large number of cellular portions and a continuous space portion. For this reason, when a load is applied in a state where the panel is uniformly supported over the entire length, the load is dispersed in the cellular portion of the intermediate layer,
The metal panel can exhibit excellent strength without deformation. However, only the end of the panel was supported,
If a load is applied while both ends are supported, the load will apply a shear load to the panel. Cause deformation.
Therefore, the metal panel proposed previously cannot be applied to a panel structural material in which a load is assumed to be applied in a state where both ends are supported.

In order to cope with such a problem, the present inventors have newly developed a high-rigidity panel which is excellent in rigidity against an external load and is most suitable for floors and walls of structures and the like. The panel has a laminated panel structure in which two or more panels provided with a large number of convex portions are stacked, and the convex portion of each panel is joined to one or more convex portions of another panel. See JP-A-9-141769). By adopting such a laminated panel structure and joining the convex portions provided on the panel to each other, it is possible to exhibit high resistance to deformation due to an external load. Therefore, the newly developed laminated panel can have high rigidity as a whole panel structural material.

[0009]

As described above, the metal panel proposed in the past could not secure a sufficient rigidity as a panel structural material. To cope with this, the present inventors have previously developed a high-rigidity panel based on a laminated panel structure. In this high-rigidity panel, the projections of each panel are joined to one or more projections of the other panels when the panels are stacked, so that the panel has excellent rigidity against load, and the panel structural material is supported at both ends. Even when a load is applied, bending deformation and shear deformation can be suppressed.
However, there is a case where the rigidity has directionality depending on a load condition of an external load. That is, although a certain degree of rigidity can be exhibited as a panel structural material, the rigidity may decrease with respect to a load applied from a specific direction.

According to the subsequent studies by the present inventors, even with the high-rigidity panel developed earlier, by further improving the arrangement of the provided protrusions and the bonding state of the protrusions,
It became clear that rigidity without directionality can be secured. In other words, regardless of the load status,
It is possible to further suppress the occurrence of bending deformation and shear deformation due to a load, and to significantly improve rigidity in any direction of the entire panel structural material.

According to the present invention, any of the performances required for structural materials used for structural materials such as building materials, aircraft, and vehicles, which cannot be achieved with conventional metal panels or laminated panels, The purpose of the present invention is to provide a panel structural material having high rigidity even in the direction of.

[0012]

As a result of various studies on the rigidity of the panel structural material, the present inventors have found that the decrease in the rigidity is caused in a space where no convex portion is formed in the conventional metal panel. In addition, in the laminated panel, it was clarified that the unformed portion between the convex portions was caused by shear deformation due to the load. That is, in general, the projection provided on the panel exhibits strong resistance to shearing force, whereas the unformed portion between the projections significantly reduces resistance to shearing force.

For example, as shown in FIG. 4 to be described later, when there is a discontinuous portion in the joining of the convex portions of the upper and lower panels when the panels are laminated, when a load is applied in a state where both ends are supported, the Shearing deformation may occur in the unformed portion and the surface material between the convex portions corresponding to the portions. In such a case, high rigidity cannot be ensured as the whole panel. Therefore, in the case of a laminated panel, it is necessary that all the projections of the panels to be combined are continuously joined.

In order for the laminated panel to exhibit high rigidity in all directions, even when all the projections of the panel are continuously joined together, another combination of the projections of the panel is required. It must be joined to three or more projections of the panel. For example, as shown in FIGS. 6 (a) and (b), which will be described later, when there is a projection that joins with one or two projections of another panel, deformation in a specific direction occurs. In some cases, and the rigidity may have directionality. In order to suppress such deformation in a specific direction, it is necessary to join the projections of each panel to three or more projections of another panel to be combined. By forming the projections in this manner, it is possible to suppress deformation occurring in all directions of the panel, and to secure excellent rigidity.

The panel of the present invention has been completed based on the above findings, and has the following high rigidity panel.

That is, the panel having a large number of convex portions is 2
A laminated panel in which at least one panel is overlapped, and in an intermediate portion excluding an end portion of the panel, all of the panels to be joined and joined to three or more projections of another panel to which the projections of each panel are combined. Is a high-rigidity panel characterized by being continuously joined (see FIGS. 1, 2 and 3).

In the above-described high-rigidity panel, when a pair of panels is laminated, the projection of each panel is 3
It is desirable to be joined to one or four projections.

The term "laminate panel" as used in the present invention means a panel having a laminate structure in which a panel having a large number of convex portions is joined together at each convex portion. Further, "all the projections are continuously joined" refers to a state where the joining of the projections is continuous without being interrupted in the entire area of the middle part of the panel. As shown in FIG. A state in which a discontinuous portion does not occur over the entire width of the structure.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the first feature of the high rigidity panel of the present invention is that all the projections of the panel are continuously joined. If the arrangement of the projections provided on the panel is non-uniform and the joining of the projections is discontinuous, the unformed portion between the projections and the surface material tend to undergo shear deformation, and the panel structure This is because the rigidity of the material is reduced.

Next, the second feature is that when the projections are bonded off-center for panel lamination, the projections of the panel are joined to three or more projections of another panel to be combined. It is the arrangement that is performed. If the projections of the panel are joined to less than three projections of another panel, that is, two or only one projection, the joining of the projections becomes uncertain, and the load is applied. This is because the rigidity of the panel structural material is reduced in a specific direction, which results in a directionality in the rigidity.

FIG. 1 is a partially cutaway perspective view showing a configuration example of a high rigidity panel according to the present invention. The high-rigidity panel 1 of the present invention is a panel having a laminated structure (laminated panel) in which two or more panels 3 each having a large number of convex portions 2 are overlapped, and the two panels 3 are laminated at the time of lamination. The panels are joined to be shifted from each other to form the panel laminate 5. A surface material (not shown) is provided on one or both sides of the panel laminate 5
Is pasted.

In this case, as described above, the projections 2 of each panel are joined to three or more projections 2 of the other panel to be combined, and all the projections 2 are joined continuously.
By adopting such a configuration, even when a load is applied in a state where the panel is supported at both ends, the deformation generated in the panel 3 and the surface material is suppressed, and the overall rigidity of the panel structural material is high. Can be shown.

At this time, as a specific number of joints, it is desirable that the projections of each panel are joined to three or four projections of another panel to be combined. This is because, in the production of a panel described later, the processing of the projections is easy, and the processing accuracy is easily ensured.

FIG. 2 is a view for explaining a state in which a projection of each panel is joined to three projections of another panel when a pair of (A and B) panels are combined. FIG. 3A shows the joined state of the convex portions, FIG. 3B shows the arrangement of the convex portions applied to the panel A, and FIG. 3C shows the arrangement of the convex portions applied to the panel B. I have. As shown in FIG. 2 (a), the projections 2 of each panel 3 are uniformly and continuously joined to the three projections 2 of the other panel 3 to be combined. Deformation does not occur in panel 3 regardless of the load state.

In this case, the convex portion satisfying the above conditions is provided at an intermediate portion excluding the end portion of the panel, and the convex portion is targeted. Specifically, as shown in FIGS. 2B and 2C, the target convex portion is not the convex portion 2b provided at the end portion of the panel, but the convex portion 2a provided at the intermediate portion. . In order to increase the rigidity, it is desirable that the number of target convex portions per panel is large.However, it is difficult to satisfy the above-mentioned condition even with the convex portions 2b provided at the end from the mechanical surface of the panel, and it is difficult to satisfy Only the convex portion 2a provided was targeted.

FIG. 3 is a view for explaining a state in which the projections of each panel are joined to the four projections of another panel when a pair of (A and B) panels are combined. Details of (c) are the same as those in FIG. As shown in FIG. 3 (a), even when the projections are joined to four projections of another panel, all the projections of each panel are uniformly and continuously joined. In addition, the rigidity of the entire panel structural material is further increased. At this time, the convex part satisfying the specified condition is
As shown in FIGS. 7B and 7C, the protrusion 2b is provided at an intermediate portion, not the protrusion 2b provided at an end of the panel.

The case where the first feature of the high-rigidity panel of the present invention is not provided, that is, the arrangement of the projections provided on the panel is uneven, and the joining of the projections is discontinuous. An example will be described.

FIG. 4 is a view showing an example of joining where the projections are discontinuous in the laminated panel, and there are portions where the joining of the projections is discontinuous over the entire width of the panel 3. The discontinuous portion as shown in the figure may be formed by forming a row of convex portions in the width direction as one unit. It may occur when combining materials. When a discontinuous portion occurs in the joining of the convex portions of the laminated panel, shear deformation is likely to occur in the panel or surface material corresponding to the discontinuous portion of the convex portion due to a load applied to the panel from the outside. .

FIG. 5 is a view for explaining a deformation state when a distributed load p is applied to a laminated panel having discontinuous joints in a state of being supported at both ends. In FIG. 5 (a), the laminated panel has surface materials 4 on both sides of the panel laminated body in which the projections 2 are joined.
And the distribution load p is applied in a state where both ends are supported, based on the XX axis shown in FIG. The portions where the convex portions are joined to each other show high resistance to deformation, but the discontinuous portions have lower resistance than other portions. Therefore, as shown in FIG. 5B, the panel corresponding to the discontinuous portion and the surface member 4 are deformed, and the rigidity as the panel structural member cannot be secured.

Further, a second feature of the high-rigidity panel of the present invention is that the other convex portion to which a specific convex portion is joined has at least three convex portions.
It is more than one. For example, when the individual panels constituting the panel laminate of the present invention are composed of two sheets of A and B, the projections of the panel of A are joined to three or more projections of the panel of B, When viewed from the panel B side, the projections of the panel B need to be joined to three or more projections of the panel A. Since one or more protrusions of the panel A are joined to three or more protrusions of the panel B, even when a load is applied from any direction, the joining of the protrusions has directivity. Without this, joining that always exhibits high rigidity becomes possible. At the same time, the load applied to the panel laminate in which the panels A and B are superimposed is dispersed, so that the resistance to deformation is increased and the rigidity of the entire panel structural material can be further increased. Next,
A case without the second feature of the present invention will be described.

FIG. 6 shows a case where a particular projection of the laminated panel is joined to another projection to be joined by less than three projections. FIG. 6A shows a state in which a normal projection except for the specific projection 2c is joined to three projections of another panel. In this case, the specific convex portion 2c is only joined to the other two convex portions, and because it is an uncertain joint, it is easy to cause deformation along the line AA depending on the load condition. Become. FIG. 6 (b) shows that the normal projections other than the specific projections 2c are the same as those of the other panel.
This shows a state in which the specific projection 2c is joined to the other two projections, and thus a specific deformation 2c may cause shear deformation depending on the load condition.

FIG. 7 is a perspective view exemplifying the shape of the projection provided on the panel of the present invention, but the shape of the projection 2 is not particularly limited. In general, it is preferable that the bowl is in a prone shape as commonly used in conventional metal panels, and the upper end thereof is horizontal so as to enhance the bonding property with other convex portions or surface materials ( FIG. 7 (a)).

The size and shape of the projections may be appropriately determined according to the use location and purpose of the panel structural material. Further, even if an opening 6 for facilitating the forming process is provided at a part of the tip portion of the projection (FIG. 7).
(b)), and the strength or rigidity as a floor or wall panel of a structure or the like is not impaired.

Regarding the material of the high rigidity panel of the present invention,
There is no particular limitation. It may be a steel plate, a plated steel plate subjected to various platings, a pre-coated steel plate, a metal material such as aluminum, or a resin using various resins.

In the case of using a metal as a raw material for manufacturing the high-rigidity panel of the present invention, usually, a thin material having a thickness of 100 to 2000 μm is used and a predetermined method of forming the panel is performed by a processing method such as drawing or pressing. After forming the convex portions at the portions, the convex portions are joined so that the centers thereof are shifted from each other, and the two panels are overlapped to form a panel laminate.

The protrusions may be bonded to each other by adhesive bonding using urethane resin or epoxy resin, or by welding such as spot welding. In the case of adhesive bonding or a combination of adhesive bonding and welding bonding, the adhesive has a vibration damping effect, so it has a characteristic that it is superior to vibration damping and shock noise absorption compared to welding alone. I can expect. When surface materials are provided on the upper and lower surfaces of the combined panel laminate, bonding is performed by a bonding method such as adhesive bonding or screwing.

The processing of the high-rigidity panel of the present invention is a relatively simple process repetition, and it is possible to continuously process from a long rolled material.
Excellent productivity. When a resin is used as the material of the panel, the weight can be reduced as compared with the case where a metal is used, and since the molding process is easy, the productivity is excellent.

[0038]

EXAMPLE A high-rigidity panel 1 of the present invention shown in FIG.

(Example 1) A cold rolled steel steel plate (thickness: 600 µm) is used as a panel 3 and a convex portion 2 (a straight line on the bottom surface) having the shape shown in FIG. : 250 mm, height: 45 mm). At this time, the projections are processed so as to be joined as shown in FIG. 2 (a), and then two panels 3 are laminated to form a panel laminate 5, and the surface material (particle board) Paste the high rigidity panel
1 was produced. At this time, the projections 2 were joined by spot welding, and the surface materials were attached to the upper and lower surfaces by screwing. In this panel laminated body 5, in the middle part except the end part, the convex parts of the upper and lower panels are joined to the three convex parts of the other panels, and all the convex parts are joined continuously. I made it.

(Example 2) As in Example 1, using a cold-rolled steel slab as a raw material, the convex portion 2 was processed by pressing, and the bonding of the convex portion was as shown in FIG. After that, two panels 3 were laminated to form a panel laminate, and then a surface material 4 was attached to produce a highly rigid panel 1.
In this panel laminate, in the middle part excluding the end part, the convex parts of the upper and lower panels are joined to four or more convex parts of the other panels, and all the convex parts are joined continuously. I made it.

(Comparative Example 1) The protruding portions were processed under the same conditions as in Example 1, but the arrangement of the protruding portions of the combined panels was the same as that shown in FIG. And the center of each of the convex portions of the panel was aligned with each other so as to be joined one-to-one.

(Comparative Example 2) A panel processed with the same arrangement of convex portions as in Example 1 was used. However, in one panel, only one row was not subjected to convex portion processing, and the bonding of the convex portions was as shown in FIG. A laminated panel was produced as described above. For this reason, there are portions where the joining of the projections is discontinuous over the entire width of the panel.

(Comparative Example 3) A panel processed with the same convex arrangement as in Example 1 was used, but the convex arrangement was not partially performed in the convex arrangement shown in FIG. A laminated panel was manufactured so that the bonding of FIG. For this reason,
The joining of the panel projections includes the case of joining with the other three projections and the case of joining with the other two projections.

(Comparison of Deformation Amount) The panels manufactured in Examples 1 and 2 and Comparative Examples 1 to 3 were each formed into a shape having a width of 1 m and a length of 2 m, and supported at both ends by supporting two short sides. Then, a distributed load of 400 kg was applied, and the displacement of the central portion at that time was measured. The results are shown in Table 1. Since the measurement results of Comparative Examples 1 to 3 have directionality, Table 1 shows the maximum displacement. From this result, it was confirmed that in the example of the present invention, the displacement was remarkably small as compared with the comparative example, and that the panel structural material as a whole exhibited high rigidity without generating directionality.

[0045]

[Table 1]

[0046]

According to the high rigidity panel of the present invention, it is a laminated panel which exhibits excellent strength and rigidity in any direction, is lightweight, and has a structure such as building materials, aircraft and vehicles. It is suitable as a structural material used for an object panel. Moreover, since the productivity is high, it can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a configuration example of a high rigidity panel of the present invention.

FIG. 2 is a diagram illustrating a state in which a projection of each panel is joined to three projections of another panel when a pair of (A and B) panels are combined.

FIG. 3 is a diagram illustrating a state in which a projection of each panel is joined to four projections of another panel when a pair of (A and B) panels are combined.

FIG. 4 is a diagram illustrating an example of joining in which a protrusion is discontinuous in a laminated panel.

FIG. 5 is a diagram for explaining a deformation state when a distributed load p is applied to a laminated panel having discontinuous projection joints in a state where both ends are supported.

FIG. 6 is a diagram showing an example in which a specific projection of the laminated panel is joined to another projection to be joined by less than three projections.

FIG. 7 is a perspective view illustrating the shape of a projection provided on the panel of the present invention.

[Explanation of symbols]

 1: High-rigidity panel, 2: Convex part 3: Panel, 4: Surface material 5: Panel laminate, 6: Opening

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yozo Hirose 4-33, Kitahama, Chuo-ku, Osaka-shi, Osaka Prefecture Inside Sumitomo Metal Industries, Ltd. (72) Inventor Masao Yamaguchi 2-1-1 Edobori, Nishi-ku, Osaka-shi, Osaka No. 1 Sumitomo Metal Building Materials Co., Ltd. (72) Inventor Toshiya Oniki 2-1-1 Edobori, Nishi-ku, Osaka-shi, Osaka

Claims (2)

[Claims] 1. A laminated panel in which two or more panels each having a large number of projections are overlapped with each other, and three other panels combined with the projections of each panel in an intermediate portion excluding an end of the panel. A high-rigidity panel which is joined to the above-mentioned projections and wherein all projections of the panel to be combined are continuously joined. 2. The high-rigidity panel according to claim 1, wherein the projections at the intermediate portion except for the end of each panel are joined to three or four projections of another panel to be combined. .