Building panel

Abstract

To provide a building panel capable of increasing panel rigidity and panel strength.SOLUTION: A building panel 1 comprises: a plate material 2; a plurality of rectangular columnar materials 3 arranged on at least both edges of the plate material 2, having a length extending from one end side to the other end side of the plate material 2 and fixed to the plate material 2; and a plate-shaped heat insulating material 4 located between the plurality of rectangular columnar materials 3, having a first surface facing the plate material 2 fixed to the plate material 2 with an adhesive, and having two second surfaces facing the rectangular columnar materials 3 each fixed to the rectangular columnar materials 3 with an adhesive.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to building panels such as floor panels, roof panels, and wall panels.

Background Art

[0002] Patent Document 1 discloses a heat-insulating and earthquake-resistant panel that enables a wall having heat-insulating and earthquake-resistant performance to be easily formed on-site. This heat-insulating and earthquake-resistant panel includes a rectangular structural facing material and a heat-insulating panel that is fixed to the inner surface of this structural facing material and whose left and right end faces are respectively fixed to two columns. The heat-insulating panel is formed by laminating a molded heat-insulating material made of bead method polystyrene foam and a board-shaped heat-insulating material having higher heat-insulating properties than this.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, although the technology disclosed in Patent Document 1 includes a heat-insulating panel fixed to columns respectively, it is not specific how the heat-insulating panel is fixed to the columns, and it seems that it only shows that the heat-insulating panel adheres to such an extent that it does not fall from the columns, and it is not intended to reinforce the heat-insulating and earthquake-resistant panel with the above heat-insulating panel.

[0005] An object of this invention is to provide a building panel capable of enhancing panel rigidity and panel strength.

Means for Solving the Problems

[0006] In order to solve the above problems, the building panel of this invention a plate material, A plurality of prismatic members disposed at least at both edges of the plate material, having a length from one end side to the other end side of the plate material, and fixed to the plate material, A plate-shaped heat insulating material located between the plurality of prismatic members, having a first surface facing the plate material fixed to the plate material with an adhesive, and two second surfaces facing the prismatic members respectively fixed to the prismatic members with an adhesive, characterized by comprising.

[0007] With the above configuration, since three surfaces of the plate-shaped heat insulating material are fixed to the plate material and the prismatic members with an adhesive, the panel rigidity and panel strength of the building panel can be increased by utilizing the strength of the plate-shaped heat insulating material.

[0008] It may have an opposing plate material disposed opposite to the plate material, and a third surface, which is the back surface of the first surface of the plate-shaped heat insulating material, may be fixed to the opposing plate material with an adhesive. According to this, since four surfaces of the plate-shaped heat insulating material are adhesively fixed to the plate material, the opposing plate material, and the prismatic members, the panel rigidity and panel strength of the building panel can be further increased.

[0009] The prismatic member may have a first layer portion and a second layer portion divided at substantially the middle in the thickness direction of the building panel, the first layer portion being made of a material that is more difficult to undergo compressive deformation than the second layer portion, and the second layer portion being made of a material that is more difficult to undergo tensile deformation than the first layer portion. According to this, a building panel that emphasizes strength rather than rigidity and has flexibility can be obtained.

[0010] The prismatic member may be a laminate of a member that becomes the first layer portion and a member that becomes the second layer portion.

[0011] The plate-shaped heat insulating material may have a compressive strength of 10 N / cm 2 or more and a flexural strength of 10 N / cm 2 or more.

[0012] In these building panels, the building panel is a floor panel, and at least floor joists may be included as the above-mentioned prismatic members.

[0013] In these building panels, the building panel is a roof panel, and at least rafters may be included as the above-mentioned prismatic members.

[0014] In these building panels, the building panel is a wall panel, and at least studs may be included as the above-mentioned prismatic members.

Advantages of the Invention

[0015] According to the present invention, there is an effect that the panel rigidity and panel strength of the building panel can be increased by utilizing the strength of the plate-shaped heat insulating material.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. The building panel 1 in the embodiment is a floor panel, and as shown in FIGS. 1(A) and 1(B), it includes a plate material 2, a plurality of prismatic members 3, and a plurality of plate-shaped heat insulating materials 4.

[0018] The plate material 2 is made of, for example, a structural plywood with a thickness of 25 mm or a floor board such as a wood board (MDF: Medium Density Fiberboard).

[0019] The prismatic members 3 are joists arranged at both edges of the plate material 2 and joists or cross members (ribs) arranged between the joists at both edges. Wooden square timbers, metal square pipes, etc. are used. These prismatic members 3 have a length extending from one end side to the other end side of the plate material 2 and are fixed to the plate material 2. This fixing can be adhesion using an adhesive, nail fixing, or staple fixing.

[0020] Each plate-shaped heat insulating material 4 has a rectangular cross-section, and the width thereof coincides with the distance between the opposing surfaces of the adjacent prismatic members 3·3. Further, for example, the longitudinal length of each plate-shaped heat insulating material 4 is approximately the same as the distance between the ends of the plate material 2 (the length of the prismatic member 3), and the thickness is approximately the same as the thickness of the prismatic member 3.

[0021] Each plate-shaped heat insulating material 4 is arranged between the prismatic members 3·3. The first surface facing the plate material 2 is fixed to the plate material 2 with an adhesive, and the two second surfaces facing the prismatic members 3 are each fixed to the prismatic members 3 with an adhesive. As the above adhesive, for example, an adhesive such as a urethane-based or vinyl-based adhesive can be used. Also, in this adhesion, strong adhesion is preferably performed by the so-called anchor effect. Note that adhesion of the plate-shaped heat insulating material 4 and the prismatic member 3 with a double-sided tape is not desirable from the viewpoint of utilizing the strength of the plate-shaped heat insulating material 4.

[0022] The plate-shaped heat insulating material 4 has, for example, a compressive strength of 10 N / cm 2 or more and a flexural strength of 10 N / cm 2The above is the case. In particular, although these upper limits are not defined, the upper limits can be, for example, the compressive strength is 50 N / cm 2 or less, and the flexural strength is 70 N / cm 2 or less.

[0023] With the above configuration, since three sides of the plate-shaped heat insulating material 4 with a rectangular cross section are adhesively fixed to the plate material 2 and the prismatic material 3 by an adhesive, the strength of the plate-shaped heat insulating material 4 can be utilized to increase the panel rigidity and panel strength of the building panel 1.

[0024] Next, a modified example of the building panel 1 will be described with reference to the drawings. As shown in FIGS. 2(A) and 2(B), the building panel 1 according to this modified example is a floor panel including a plate material 2, a plurality of prismatic materials 3, a plurality of plate-shaped heat insulating materials 4, and an opposing plate material 5.

[0025] By arranging the opposing plate material 5 to face the plate material 2, the building panel 1 has a sandwich panel structure. In this building panel 1, the third surface, which is the back surface of the first surface of the plate-shaped heat insulating material 4, is also fixed to the opposing plate material 5 by the above adhesive.

[0026] According to this, since the four surfaces of the plate-shaped heat insulating material 4 with a rectangular cross section are adhesively fixed to the plate material 2, the opposing plate material 5, and the prismatic material 3 by an adhesive, the rigidity and strength of the plate-shaped heat insulating material 4 can be further utilized to further increase the panel rigidity and panel strength of the building panel 1.

[0027] In such a sandwich panel structure, the opposing plate material 5 and the plate material 2 may both be the same material such as structural plywood or wood board. For example, if the opposing plate material 5 becomes the back plate of the building panel 1, unlike the front plate, there are not many specification restrictions. Therefore, in order to increase the panel rigidity of the building panel 1, glass fiber board, thin iron plate, gypsum board, etc. can also be used as the opposing plate material 5. Furthermore, as the opposing plate material 5, a plate made of a material with high tensile rigidity such as a carbon material can also be used.

[0028] Also, in such a sandwich panel structure, as shown in Fig. 3, the prismatic member 3 may have a first layer portion 31 and a second layer portion 32 that are divided at approximately the middle in the thickness direction (A - A direction) of the building panel 1. The first layer portion 31, which becomes the compression side during loading, is made of a material that is less likely to undergo compressive deformation than the second layer portion 32, which becomes the tension side, and the second layer portion 32 is made of a material that is less likely to undergo tensile deformation than the first layer portion 31. Examples of materials that are less likely to undergo compressive deformation include metal plate materials such as aluminum alloys, and cement boards. Examples of materials that are less likely to undergo tensile deformation include carbon fiber reinforced plate materials and high-tensile steel plates.

[0029] In the building panel 1 with such a sandwich panel structure, importance can be placed on strength rather than rigidity, and the building panel 1 can be made to have flexibility. Note that the prismatic member 3 can be formed by bonding together a member that becomes the first layer portion 31 and a member that becomes the second layer portion 32 with adhesives or by nailing. Also, the panel rigidity is mainly determined by the material selection of the prismatic members 3, which are the joists and girts, and the panel strength can be adjusted by the material selection of the opposing plate materials 5 and the plate material 2.

[0030] The building panel 1 had a structure in which, in addition to the two prismatic members 3 arranged at at least both edges of the plate material 2, there were further prismatic members 3, but it is not limited to this. As shown in Figs. 4(A) and 4(B), it may be configured to have only the two prismatic members 3 arranged at both edges, and include a large plate-shaped heat insulating material 4 that fills the space between these two prismatic members 3.

[0031] Also, in the above description, a floor panel was shown as the building panel 1, but the building panel 1 is not limited to such a floor panel. The building panel 1 may be a roof panel, and this roof panel has a structure that includes at least rafters as the prismatic member 3. Also, the building panel 1 may be a wall panel, and this wall panel has a structure that includes at least studs as the prismatic member 3.

[0032] Figure 5 shows the measured values of the amount of deformation (stroke: mm) when six types of panel mock-ups M1 to M6 (H60 mm, W60 mm, L900 mm), which were not the building panels themselves but were fabricated analogously, were positioned on two support points 700 mm apart and pressurized (test force applied) on the central side thereof.

[0033] As shown in Fig. 6(A), the panel mock-up M1 consists only of the plate-like heat insulating material P. The plate-like heat insulating material P used generally has a compressive strength of 20 N / cm 2 and a flexural strength of 50 N / cm 2 polystyrene (the same applies hereinafter). As shown in Fig. 6(B), the panel mock-up M2 consists of the plate-like heat insulating material P and a plywood B1 (2.5 mm thick) adhered to one surface thereof with an adhesive. As shown in Fig. 6(C), the panel mock-up M3 consists of the plywood B1, a plywood B2 (2.5 mm thick) erected on the central side of this plywood B1, and the plate-like heat insulating material P fixed to these plywoods B1 and B2 with an adhesive. As shown in Fig. 6(D), the panel mock-up M4 consists of the plate-like heat insulating material P and plywoods B1, B1 fixed to the opposite two surfaces thereof with an adhesive. As shown in Fig. 6(E), the panel mock-up M5 is one in which a plywood B2 is fixed to the plate-like heat insulating material P with an adhesive between the plywoods B1, B1 of the panel mock-up M4. As shown in Fig. 6(F), the panel mock-up M6 is one in which plywoods B3 (2.5 mm thick) are respectively fixed to both side surfaces of the plate-like heat insulating material P in the panel mock-up M2 with an adhesive.

[0034] According to the graph in Fig. 5, it can be seen that the panel mock-ups M5 and M6 in which at least three surfaces of the plate-like heat insulating material P are fixed to the plywood with an adhesive have higher rigidity (strength) than the other panel mock-ups M1 to M4.

[0035] The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to those of the illustrated embodiments. Various modifications and variations can be made within the same scope or an equivalent scope as the present invention with respect to the illustrated embodiments.

Explanation of Symbols

[0036] 1: Panel for building 2: Plate material 3: Prismatic member 4: Plate-shaped heat insulating material 5: Opposing plate material 31: First layer part 32: Second layer part B1: Plywood B2: Plywood B3: Plywood M1: Panel simulation body M2: Panel simulation body M3: Panel simulation body M4: Panel simulation body M5: Panel simulation body M6: Panel simulation body P: Plate-shaped heat insulating material

Claims

1. a plate material; a plurality of prismatic members disposed on at least both edges of the plate material, having a length extending from one end side to the other end side of the plate material, and fixed to the plate material; a plate-shaped heat insulating material positioned between the plurality of prismatic members, wherein a first surface facing the plate material is fixed to the plate material with an adhesive, and two second surfaces facing the prismatic members are respectively fixed to the prismatic members with an adhesive; A building panel comprising the above.

2. The building panel according to Claim 1, further comprising an opposing plate material disposed opposite to the plate material, wherein a third surface, which is the back surface of the first surface of the plate-shaped heat insulating material, is fixed to the opposing plate material with an adhesive.

3. The building panel according to Claim 2, wherein the prismatic member has a first layer portion and a second layer portion divided at substantially the middle in the thickness direction of the building panel, the first layer portion is made of a material that is more difficult to undergo compressive deformation than the second layer portion, and the second layer portion is made of a material that is more difficult to undergo tensile deformation than the first layer portion.

4. The building panel according to Claim 3, wherein the prismatic member is formed by bonding a member that becomes the first layer portion and a member that becomes the second layer portion.

5. In the building panel according to claim 1, the plate-shaped heat insulating material has a compressive strength of 10 N / cm 2 or more and a flexural strength of 10 N / cm 2 or more, and is characterized by being a building panel.

6. In the building panel according to any one of Claims 1 to 5, the building panel is a floor panel, and at least a joist is included as the prismatic member.

7. In the building panel according to any one of Claims 1 to 5, the building panel is a roof panel, and at least a rafter is included as the prismatic member.

8. In the building panel according to any one of Claims 1 to 5, the building panel is a wall panel, and at least a stud is included as the prismatic member.

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