Heat-insulating wall panel component for wooden building and heat-insulating wall panel for wooden building

Abstract

To provide a heat-insulating wall panel that enhances heat-insulating performance while facilitating handling and securing required earthquake resistance strength, in a heat-insulating wall panel for a wooden building manufactured in a factory for improving workability at a site.SOLUTION: A heat-insulating wall panel component 1 for a wooden building is formed in a rectangular parallelepiped shape by combining a wooden frame body 2 and a block body 3 which is a foamed plastic heat-insulating material. The frame body 2 is formed by attaching a plate material 5 to a frame material 4 including a horizontal frame material 4H and a vertical frame material 4V. The block body 3 is an integral body having a rectangular plate-shaped first block material 3A and second block material 3B, and a connecting material for connecting the first block material 3A and the second block material 3B. With the plate material 5 inserted into a groove between the first block material 3A and the second block material 3B, a corner part of the first block material 3A abuts on a corner part 4D formed by the horizontal frame material 4H and the vertical frame material 4V, and the second block material 3B abuts on the whole surface E of the plate material 5.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a heat insulating panel that can be used in the walls of wooden buildings constructed using conventional framework construction methods and that can easily ensure earthquake resistance. [Background technology]

[0002] In order for Japan to achieve carbon neutrality by 2050 and a 46% reduction in greenhouse gas emissions by 2030 (compared to 2013), efforts in the building sector, which accounts for approximately 30% of energy consumption, are urgently needed. To this end, the revised Building Energy Conservation Act, promulgated on June 17, 2022, will make it mandatory for all newly constructed homes and other buildings to comply with energy conservation standards by April 2025 (scheduled). Therefore, all newly constructed buildings, including homes, will be required to improve their insulation performance so that they meet the required insulation standards.

[0003] On the other hand, the more energy-efficient a home is, the heavier the building itself becomes, so earthquake resistance becomes increasingly important. Therefore, the revised Building Standards Act is scheduled to come into effect in April 2025, and the scope of wooden buildings that require structural calculations such as wall volume calculations and allowable stress calculations will be expanded, and the increased weight of the building itself will be taken into account, meaning that the amount of wall space required in wall volume calculations, for example, will increase.

[0004] On the other hand, some insulating wall panels for wooden buildings used in shear walls with braces to improve earthquake resistance are manufactured in factories to improve on-site workability (see, for example, Patent Document 1). The architectural panel 1 in Patent Document 1 has braces 3 fixed diagonally to one surface of a panel 2, and two roughly triangular plate-shaped insulating materials 4 joined to one surface of the panel 2 with the braces 3 sandwiched between them. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 11-50566 Summary of the Invention [Problem to be solved by the invention]

[0006] The architectural facing panel 1 of Patent Document 1 has two plate-shaped insulating materials 4 joined together to sandwich a brace 3 attached diagonally to one surface of the facing 2. Therefore, there is no insulating material where the brace 3 is located, and the thickness of the plate-shaped insulating material 4 cannot be increased (Figures 1 and 7 of Patent Document 1), so the insulating performance cannot be improved.

[0007] Furthermore, the wall structure of Patent Document 1 uses a single architectural face material panel 1 in the wall of a wooden building (FIGS. 5 and 6 of Patent Document 1), and the architectural face material panel 1 is an integrated unit of a face material 2, a brace 3, and a plate-shaped insulating material 4. As a result, the architectural face material panel 1 is large and heavy, for example, having a height of about 3 m and a width of 1 to 2 m. This makes it difficult to handle and reduces workability when transporting and storing the architectural face material panel 1 within a factory, transporting the architectural face material panel 1 from the factory to a site, and installing the architectural face material panel 1 at the site.

[0008] Furthermore, the architectural facing panel 1 of Patent Document 1 requires the braces 3 to be fastened to the corners of the timber using mounting brackets 5 and nails 6 (Figs. 4 and 5 of Patent Document 1), which necessitates the separate mounting brackets 5. When reinforcing hardware such as mounting brackets 5 is fastened to the corners of timber, strain and stress occur in the corners due to dryness and wetness, which can cause fluctuations in the fixing force between the corners and the reinforcing hardware, reducing the reliability of the reinforcement.

[0009] The present invention aims to improve the thermal insulation performance of insulated wall panels for wooden buildings, which are manufactured in factories to improve on-site workability, while making them easier to handle and ensuring the required seismic strength. [Means for solving the problem]

[0010] An insulated wall panel component for wooden buildings according to a first aspect of the present invention is a rectangular parallelepiped formed by combining a wooden frame body and blocks made of foamed plastic insulation. The frame body includes a frame member having horizontal frame members extending in the left-right direction and vertical frame members extending in the up-down direction, and a plate member having a corner extending from the front-to-back direction along the corner formed by the horizontal frame members and the vertical frame members, the plate member being attached to one end face in the front-to-back direction of the frame member. The block member is an integral unit having first and second blocks each having a rectangular plate shape spaced apart in the front-to-back direction, and a connecting member connecting the first and second blocks. When the plate member is inserted into the groove between the first and second blocks, the corners of the first blocks abut against the corners formed by the horizontal frame members and the vertical frame members, and the second blocks contact the entire surface of the plate member.

[0011] According to the first aspect of the insulated wall panel component for wooden buildings, a wooden frame body having the aforementioned shape and a block body of foamed plastic insulation material having the aforementioned shape are fabricated in a factory. Then, by assembling the frame body by inserting the plate members of the frame body into the grooves of the block body, a rectangular parallelepiped insulated wall panel component for wooden buildings can be easily fabricated.

[0012] The insulated wall panel components can be easily and firmly fixed with screws so that the corners of the boards and the corners formed by the horizontal and vertical frames abut against the corners of the wooden piece where the insulated wall panel for wooden buildings is to be attached. This allows four of the insulated wall panel components to be attached between adjacent columns without bracing to form the insulated wall panel. This makes handling much easier than transporting a single insulated wall panel for wooden buildings manufactured in a factory to the installation site, and it also effectively reinforces the corners of the wooden piece where the panel is to be attached, preventing deformation at the corners, making it easier to ensure the required seismic strength.

[0013] The insulated wall panel component is a single unit consisting of first and second rectangular blocks of foamed plastic insulation spaced apart in the front-to-back direction, and a connecting member connecting the first and second blocks. Because the second block contacts the entire surface of the plate, the entire surface along the wall of the wooden frame is covered with foamed plastic insulation, meaning that the foamed plastic insulation is present throughout the entire plane along the wall to which the insulated wall panel component is attached. Furthermore, because the insulated wall panel component is rectangular and can be attached between adjacent columns without bracing, the thickness of the foamed plastic insulation block can be easily adjusted based on thermal resistance calculations to achieve the required insulation performance.

[0014] The second aspect of the present invention relates to an insulating wall panel component for wooden buildings, which is the same as the first aspect of the insulating wall panel component for wooden buildings, except that the frame member has the horizontal frame member and two vertical frame members connected to the left and right ends of the horizontal frame member, and the board member is a rectangular structural plywood.

[0015] According to the second aspect of the insulated wall panel component for wooden buildings, the frame member has two of the vertical frame members, and the plate members are rectangular structural plywood. Therefore, when four of the insulated wall panel components are attached between adjacent pillars without bracing to form an insulated wall panel, the vertical frame members can be connected and fixed by sandwiching the studs between the adjacent pillars, and because the plate members are rectangular structural plywood, the effect of suppressing deformation of the corners is greatly increased, resulting in increased seismic strength.

[0016] An insulated wall panel for wooden buildings according to a third aspect of the present invention is an insulated wall panel to be attached between beams, sills or girths and adjacent columns in a wooden building. There are no braces between the columns, and four of the insulated wall panel components for wooden buildings according to the first or second aspect are attached above and below the studs on both sides of the studs between the columns, with the horizontal frame members attached to the beams, sills or girths, and the vertical frame members attached to the columns.

[0017] The insulating wall panel for wooden building according to the third aspect provides the same effects as the insulating wall panel component for wooden building according to the first or second aspect. [Effects of the Invention]

[0018] As described above, the insulated wall panel for wooden buildings according to the present invention is formed by using rectangular parallelepiped insulated wall panel components for wooden buildings that can be easily fabricated in a factory, and attaching four of the insulated wall panel components between adjacent pillars without bracing so as to suppress deformation of the corners of the wood where the insulated wall panel for wooden buildings is attached. Therefore, compared to a single insulated wall panel fabricated in a factory and then transported to the site for installation, handling is much easier, and deformation of the corners can be suppressed, making it easier to ensure the required seismic strength.

[0019] Furthermore, the second block of the block body, which is a foamed plastic insulation material, is in contact with the entire surface of the board of the wooden frame body, so the entire frame body is covered with foamed plastic insulation material and the thickness of the block body can be increased, making it easy to improve insulation performance. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a front view of an insulated wall panel for wooden buildings according to an embodiment of the present invention. [Figure 2] 1 is a perspective view of an insulating wall panel component for wooden buildings according to an embodiment of the present invention. [Figure 3] FIG. 2 is a perspective view of the insulated wall panel component. [Figure 4] FIG. 2 is an exploded perspective view of the insulated wall panel component. [Figure 5] FIG. 2 is an exploded view of the insulating wall panel components as viewed from the left and right. [Figure 6] FIG. 10 is a perspective view of a first modified example of the insulating wall panel component. [Figure 7]FIG. 10 is an exploded perspective view of the first modified example. [Figure 8] FIG. 10 is a perspective view of a second modified example of the insulating wall panel component. [Figure 9] FIG. 10 is an exploded perspective view of the second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. The insulating wall panel for wooden buildings of the present invention is used in wooden buildings constructed using the conventional framework method, and is manufactured in a factory.

[0022] In this specification, the terms "left-right direction" (see arrow H in Figure 1), "up-down direction" (see arrow V in Figure 1), and "front-rear direction" are defined as being directed toward the insulated wall panel when the panel is attached to a wooden building. The above-mentioned definitions of directions are also used for each component of the insulated wall panel based on the above-mentioned state (for example, see arrow F in Figures 2-9 for the "front-rear direction").

[0023] [Insulated wall panels for wooden buildings] The insulated wall panel A for wooden buildings according to the embodiment of the present invention shown in Figure 1 shows an example of its use on the first floor of a wooden building, and is attached between a beam 11, a base 12, and adjacent columns 13 and 14. When the insulated wall panel A is attached to the second or higher floor of a wooden building, it is attached to a girth instead of the base 12.

[0024] The floor structure shown in Figure 1 is a rigid floor construction method (joist-less construction method), with floor structural plywood 16 and underlayment material 17 on top of a foundation 12. The rigid floor construction method is stronger against horizontal forces generated during earthquakes and typhoons than the joist construction method, so it is possible to omit the use of fire beams.

[0025] In Figure 1, there are no braces between adjacent columns 13 and 14, but there are studs 15. The insulating wall panel A is composed of four insulating wall panel components 1 (two insulating wall panel components 1A and two insulating wall panel components 1B).

[0026] As shown in Figure 1, the four insulated wall panel components 1 are attached to the top and bottom of both the left and right sides of a stud 15. That is, the horizontal frame members 4H are attached to beams 11 or bases 12 with rafter fastening screws 9, and the vertical frame members 4V are attached to pillars 13 or 14 with screws 10. Furthermore, the vertical frame members 4V that face each other across the stud 15 are connected and fixed together with the screws 10.

[0027] [Insulated wall panel components for wooden buildings] The insulated wall panel component 1A and the insulated wall panel component 1B shown in Figure 1-3 have the same structure and shape. The insulated wall panel component 1A and the insulated wall panel component 1B differ in some of the positions where the rafter fixing screws 9 and 10 are attached, and therefore the positions of the pilot holes 6, 7, and 8 formed in the factory are also different.

[0028] As shown in Figure 2-3, the insulating wall panel component 1 is a rectangular parallelepiped formed by combining a wooden frame body 2 and a block body 3 made of foamed plastic insulation. The wooden frame material 4 has horizontal frame members 4H extending in the left-right direction H and vertical frame members 4V extending in the up-down direction V.

[0029] Pilot holes 6, 7, and 8 are drilled diagonally in the horizontal frame member 4H and the vertical frame member 4V from a position close to the first block member 3A of the block body 3. This allows the rectangular parallelepiped insulated wall panel component 1 to be fastened with screws using an electric screwdriver using the pilot holes 6, 7, and 8. This allows the four insulated wall panel components 1 (two insulated wall panel components 1A and two insulated wall panel components 1B) to be easily attached to form the insulated wall panel A shown in Figure 1.

[0030] As shown in Figure 2-5, the frame body 2 has frame members 4 and plate members 5, and is composed of a first frame body 2A and a second frame body 2B. The first frame member 2A has a first frame member 4A having horizontal frame members 4H and left and right vertical frame members 4V, and a rectangular first plate member 5A having a corner 5C extending in the front-to-back direction F from the corner 4C formed by the horizontal frame members 4H and the vertical frame members 4V, with the first plate member 5A attached to one end face D in the front-to-back direction F of the first frame member 4A. The second frame member 2B has a second frame member 4B having left and right vertical frame members 4V, and a rectangular second plate member 5B attached to one end face D in the front-to-back direction of the second frame member 4B.

[0031] The frame members 4, which are the first frame member 4A and the second frame member 4B, are square timbers. The plate members 5, which are the first plate member 5A and the second plate member 5B, are, for example, structural plywood. The first frame member 4A and the first plate member 5A are joined with screws to form the first frame body 2A. The second frame member 4B and the second plate member 5B are joined with screws to form the second frame body 2B.

[0032] The block body 3 is an integral unit having a first block member 3A and a second block member 3B, which are rectangular plates spaced apart in the front-to-rear direction F, and a connecting member 3C connecting the first block member 3A and the second block member 3B. As shown in Fig. 4-5, the block body 3 has a first groove portion B1 and a second groove portion B2, which are groove portions B extending in the left-right direction H and the up-down direction V.

[0033] The foamed plastic heat insulating material of the block body 3 is, for example, a bead method polystyrene foam, an extruded method polystyrene foam, or a phenol foam.

[0034] The block 3 shown in Figure 4-5 is manufactured from a rectangular parallelepiped made of foamed plastic insulation. For example, the rectangular parallelepiped is positioned on a table, and a moving device moves an electric heating wire stretched left and right in the front-rear and up and down directions. A numerical control device issues the required commands to the moving device to drive the moving device. This allows the required locations of the rectangular parallelepiped to be cut with the electric heating wire with precision, allowing the block 3 to be manufactured accurately and efficiently.

[0035] As shown in FIG. 4-5, the first plate member 5A of the first frame body 2A is inserted into the first groove B1 between the first block member 3A and the second block member 3B, and the second plate member 5B of the second frame body 2B is inserted into the second groove B2 between the first block member 3A and the second block member 3B.

[0036] In this state, as shown in Fig. 2, corners C (Fig. 4) of the first block 3A abut against corners 4D formed by the horizontal frame members 4H and the vertical frame members 4V, the first block 3A abuts against the inner surfaces in the left-right direction H of the left and right vertical frame members 4V, and the second block 3B abuts against the entire surfaces E of the first plate member 5A and the entire surfaces E of the second plate member 5B. As a result, one entire surface in the front-rear direction F of the first frame body 2A and the second frame body 2B is covered by the second block 3B.

[0037] [Modification of insulated wall panel components for wooden buildings] (First Modification) In the first modified example of the insulating wall panel component 1 for wooden buildings shown in Figs. 6-7, the same reference numerals as those in Figs. 1-5 indicate the same or corresponding parts or portions.

[0038] 6-7, the frame body 2 is one, rather than being composed of two, a first frame body 2A and a second frame body 2B, as in Figures 2 and 4. The frame body 2 has a frame member 4 having horizontal frame members 4H and left and right vertical frame members 4V, and a rectangular plate member 5 having a corner 5C extending from the front-to-rear direction F to a corner 4C formed by the horizontal frame members 4H and the vertical frame members 4V. The plate member 5 is attached to one end face D of the frame member 4 in the front-to-rear direction F.

[0039] In the first modified example shown in FIGS. 6-7, the block body 3 has a single groove B between the first block member 3A and the second block member 3B, rather than two grooves, a first groove B1 and a second groove B2, as shown in FIGS. 4-5.

[0040] As shown in Fig. 7, when the plate material 5 of the frame body 2 is inserted into the groove B between the first block material 3A and the second block material 3B, as shown in Fig. 6, the corner C (Fig. 7) of the first block material 3A abuts against the corner 4D formed by the horizontal frame material 4H and the vertical frame material 4V, the first block material 3A abuts against the inner surfaces in the left-right direction H of the left and right vertical frame materials 4V, and the second block material 3B abuts against the entire surface E of the plate material 5. As a result, one entire surface of the frame body 2 in the front-rear direction F is covered by the second block material 3B.

[0041] (Second Modification) In the second modified example of the insulating wall panel component 1 for wooden buildings shown in Figs. 8-9, the same reference numerals as those in Figs. 1-5 indicate the same or corresponding parts or portions.

[0042] In the second modified example shown in Figures 8-9, the first frame member 4A does not have a horizontal frame member 4H and left and right vertical frame members 4V as in Figures 2 and 4, but has a horizontal frame member 4H and one vertical frame member 4V. Also, the first plate member 5A is not rectangular as in Figures 2 and 4, but has a right-angled triangular shape.

[0043] In a second modified example of an insulated wall panel component 1 for wooden buildings, for example, four insulated wall panel components 1 are attached above and below on both the left and right sides of the stud 15 in Fig. 1, and as shown in Figs. 8-9, the first frame member 4A has one vertical frame member 4V, so the horizontal frame member 4H is attached to the beam 11 or base 12 with rafter fixing screws 9, and one vertical frame member 4V is attached to the pillar 13 or pillar 14 with screws 10. The second frame member 4B has two vertical frame members 4V, so the vertical frame members 4V facing each other across the stud 15 are connected and fixed together with screws 10.

[0044] [Action and effect] In the insulating wall panel component 1 for wooden buildings according to the embodiment of the present invention, the wooden frame body 2 having the above-mentioned shape and the block body 3 made of foamed plastic insulation material having the above-mentioned shape are manufactured in a factory. Then, by assembling the frame body 2 so that the plate material 5 is inserted into the groove portion B of the block body 3, the rectangular parallelepiped insulating wall panel component 1 for wooden buildings can be easily manufactured.

[0045] The insulated wall panel component 1 can be easily and firmly fixed with screws so that the corners 5C of the boards 5 and the corners 4C formed by the horizontal and vertical frame members 4H and 4V abut against the corners of the wood where the insulated wall panel A will be attached (for example, in Figure 1, left and right corners 11C formed by the beam 11 and the columns 13, 14, and left and right corners G formed by the base material 17 on the base 12 and the columns 13, 14). This allows four insulated wall panel components 1 to be attached between adjacent columns 13, 14 without bracing to form the insulated wall panel A (Figure 1). This makes handling much easier than transporting a single insulated wall panel 1 fabricated in a factory to the installation site, and also effectively reinforces the corners of the wood where the insulated wall panel A will be attached, thereby suppressing deformation at the corners, making it easier to ensure the required seismic strength.

[0046] The insulated wall panel component 1 is an integrated block 3 made of foamed plastic insulation material. The first and second blocks 3A and 3B are rectangular plates spaced apart in the front-to-back direction F, and the connecting member 3C connects the first and second blocks 3A and 3B. Because the second block 3B contacts the entire surface E of the plate 5, the entire surface along the wall of the wooden frame 2 is covered with foamed plastic insulation material. Therefore, the foamed plastic insulation material is present throughout the entire surface along the wall to which the insulated wall panel component 1 is attached. Furthermore, because the insulated wall panel component 1 is rectangular and can be installed between adjacent columns 13 and 14 without bracing, the thickness of the foamed plastic insulation block can be easily adjusted based on heat conduction resistance calculations to achieve the required insulation performance.

[0047] In particular, in the case of an insulated wall panel component 1 such as that shown in Figure 2-7, in which the frame material 2 has a horizontal frame material 4H and two vertical frame materials 4V connected to the left-right ends of the horizontal frame material 4H in the left-right direction H, and the plate material 5 is rectangular structural plywood, when four of the insulated wall panel components 1 are attached between adjacent pillars 13, 14 without bracing as shown in Figure 1 to form an insulated wall panel A, the vertical frame materials 5V can be connected and fixed by sandwiching the studs 15 between the adjacent pillars 13, 14, and because the plate material 5 is rectangular structural plywood, the effect of suppressing deformation of the corners is very great, resulting in increased seismic strength.

[0048] Furthermore, in the rigid floor construction method shown in Fig. 1, the base material 17 is usually fastened to the pillars 13, 14 and the base 12 with reinforcing metal fittings, etc., which requires reprocessing of the base material to which the finishing material is fixed. However, in this embodiment, the base material 17 can be easily constructed in advance.

[0049] The above description of the embodiments is given by way of example only and is not intended to be limiting, and various improvements and modifications can be made without departing from the scope of the present invention. [Explanation of symbols]

[0050] 1, 1A, 1B Insulated wall panel components for wooden buildings 2 Frame body 2A First frame body 2B Second frame body 3 Block body 3A 1st block material 3B 2nd block material 3C Connecting material 4 Frame material 4A 1st frame material 4B 2nd frame material 4C Corner 4D Corner 4H horizontal frame material 4V vertical frame material 5 Plate 5A 1st plate 5B 2nd plate 5C Corner 6,7,8 Pilot holes 9 Rafter fixing screws 10 Screw 11 Beam 11C Corner 12 Base 13,14 Pillars 15 Studs 16 Plywood for floor construction 17 Underlayment A. Insulated wall panel for wooden buildings B. Groove B1 1st groove B2 2nd groove C Corner D End face E Surface F Anteroposterior direction G Corner H Horizontal direction V vertical direction

Claims

1. A component constituting an insulating wall panel for wooden buildings, It is a rectangular parallelepiped structure made by combining a wooden frame body with a block body made of foamed plastic insulation material. The frame body is A frame member having horizontal frame members extending in the left-right direction and vertical frame members extending in the up-down direction, and a plate member having a corner portion along the front-to-back direction at the corner portion formed by the horizontal frame members and the vertical frame members, The plate material is attached to one end surface of the frame material in the front-rear direction, The block body is the block is an integral unit having rectangular plate-shaped first and second blocks spaced apart in the front-rear direction, and a connecting member connecting the first and second blocks; When the plate material is inserted into the groove between the first block material and the second block material, the corners of the first block material abut on the corners formed by the horizontal frame material and the vertical frame material, and the second block material contacts the entire surface of the plate material. Insulated wall panel components for wooden buildings.

2. The frame member includes the horizontal frame member and two vertical frame members connected to the left and right ends of the horizontal frame member, The board material is a rectangular structural plywood.

2. The insulating wall panel component for wooden buildings according to claim 1.

3. An insulated wall panel to be attached between beams, foundations or girths and adjacent columns in a wooden building, There are no braces between the pillars, Four of the insulating wall panel components for wooden buildings according to claim 1 or 2 are On both sides of the studs between the pillars, The horizontal frame member is attached to the beam, the base, or the girth, and the vertical frame member is attached to the column in a direction such that it is attached to the column. Insulated wall panels for wooden buildings.

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