Support structure for supported objects, architectural wood panels and wall construction methods

Abstract

To easily support supported objects such as shelf boards while preventing fireproof coating provided on a surface of a wall from being interrupted.SOLUTION: A structure for supporting a plate-shaped supported object 1 protruding from one side of a wall 2 includes: a base material 20 fixed to a wall body 10 on a back side of an opening 10a; a plate-shaped internal fireproof covering material 21 provided on one side of the base material 20 and exposed to the opening 10a; a reinforcing crosspiece 22 provided on one side of the internal fireproof covering material 21, fixed with screws 23 toward the base material 20, and having the supported object 1 fixed on an upper surface; and a plate-shaped fireproof covering material 15 provided on one side of the wall body 10 and covering one side of the wall body 10 while avoiding the supported object 1 and the reinforcing crosspiece 22. One side of the wall body 10 and one side of the internal fireproof covering material 21 are flush with each other. The fireproof covering material 15 is provided across one side of the wall body 10 and one side of the internal fireproof covering material 21.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a support structure for a supported object, a wooden panel for construction, and a wall construction method. [Background technology]

[0002] A technique has been known in the past to attach shelves to a wall that has a fire-resistant covering made of, for example, gypsum board on its surface. This technique has the advantage that attaching shelves to the wall from above the fire-resistant covering ensures that the fire-resistant covering is continuous, thereby preventing a decrease in fire resistance. For example, in Patent Document 1, a shelf board is attached to a wall via a mounting member that supports the shelf board. The mounting member is fixed by screwing it onto a base board that is provided on the back surface of the fire-resistant covering material and in close contact with the fire-resistant covering material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-188521 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, fire-resistant covering materials made of gypsum boards are sometimes stacked in multiple layers to improve not only fire resistance but also thermal insulation and soundproofing, and thicker fire-resistant covering materials than usual are sometimes used. However, when attempting to attach conventional shelves over fire-resistant coverings to walls with thicker surfaces due to the use of multiple layers of fire-resistant coverings or thicker-than-normal coverings, the problem arises that the screws used to secure the mounting components have difficulty reaching the base material. If the screws are lengthened to solve this problem, the shear force acting on the screws increases, causing them to deform, or the shear force can cause the fire-resistant covering around the screws to collapse, making it difficult to support the shelf.

[0005] The present invention has been made in consideration of the above circumstances, and its object is to make it easier to support supported objects such as shelves while ensuring that the fire-resistant coating on the surface of the wall is not interrupted. [Means for solving the problem]

[0006] The invention described in claim 1 is, for example, as shown in Figs. 1 to 9, a hollow wall body 10 (for example, a wooden panel 10 for construction) constituting a wall 2 of a building, in which an opening 10a is formed on one side thereof, A structure for supporting a plate-shaped supported object 1 (for example, a shelf board 1) protruding from one side of the wall 2, A base material 20 fixed to the wall main body 10 at the back side of the opening 10a; a plate-shaped internal fire-resistant covering material 21 provided on one side of the base material 20 and exposed to the opening 10a; a reinforcing bar 22 provided on one side of the interior fire-resistant covering material 21 and fixed to the base material 20 with a screw 23, and having the supported object 1 fixed to its upper surface; a plate-shaped fire-resistant covering material 15 that is provided on one side of the wall main body 10 and covers the one side of the wall main body 10 while avoiding the supported object 1 and the reinforcing bar 22; One side of the wall body 10 and one side of the interior fire-resistant covering material 21 are flush with each other, The fire-resistant covering material 15 is characterized in that it is provided across one side surface of the wall main body 10 and one side surface of the interior fire-resistant covering material 21.

[0007] According to the invention described in claim 1, the interior fire-resistant covering material 21 is provided on one side of the base material 20 and exposed at the opening 10a, and the reinforcing bar 22 is provided on one side of the interior fire-resistant covering material 21 and fixed with the screw 23 facing the base material 20, so that the tip side of the screw 23 is supported by the base material 20 and the head side is supported by the reinforcing bar 22. This makes the screw 23 less likely to bend and less likely to undergo shear deformation or bending deformation, thereby preventing the portion of the interior fire-resistant covering material 21 around the screw 23 from collapsing. Furthermore, because the supported object 1 is fixed to the upper surface of such reinforcing bar 22, this contributes to the ease with which the reinforcing bar 22 can support the supported object 1. Furthermore, one side of the wall body 10 and one side of the interior fire-resistant covering material 21 are flush with each other, and the fire-resistant covering material 15 is provided across one side of the wall body 10 and one side of the interior fire-resistant covering material 21, so that the fire-resistant covering of the wall body 10 can be prevented from being interrupted.

[0008] The invention described in claim 2 is, for example, as shown in Figs. 2 and 6, in the support structure for the supported object 1 described in claim 1, The fire-resistant covering material 15 is characterized in that it is in contact with the upper surface of the supported object 1 and the lower surface of the reinforcing bar 22.

[0009] According to the invention recited in claim 2, the fire-resistant covering material 15 contacts the upper surface of the supported object 1 and the underside of the reinforcing bar 22, so that both the reinforcing bar 22 and the supported object 1 fixed to its upper surface are sandwiched from above and below by the fire-resistant covering material 15. As a result, the underside of the reinforcing bar 22 is supported by the fire-resistant covering material 15, so deflection of the screws 23 can be more reliably suppressed. Moreover, because the base end side of the supported object 1 in the protruding direction is supported from above, the movement of the supported object 1, which tends to cause the tip end in the protruding direction to displace downward and the base end to displace upward due to the weight of the supported object 1 itself or the load when an object is placed on top, can be suppressed.

[0010] The invention described in claim 3 is, for example, as shown in Figs. 1, 2 and 6, in the support structure for the supported object 1 described in claim 1, One side of the reinforcing bar 22 and one side of the fire-resistant covering material 15 are flush with each other.

[0011] According to the invention described in claim 3, one side of the reinforcing bar 22 and one side of the fire-resistant covering material 15 are flush with each other, so the reinforcing bar 22 can be finished together with the fire-resistant covering material 15 and placed within the same wall surface. This prevents the reinforcing bar 22 from protruding from one side of the wall 2 of the building, improving the design of the wall 2 of the building.

[0012] The invention described in claim 4 is, for example, as shown in Figs. 2, 6 and 7, in the support structure for the supported object 1 described in any one of claims 1 to 3, Above, below and on both sides of the supported object 1 and the reinforcing bar 22, the fire-resistant covering material 15 is provided across one side of the wall main body 10 and one side of the interior fire-resistant covering material 21, The overlap dimension between the internal fire-resistant coating material 21 and the fire-resistant coating material 15 in each of the above, below, and both sides directions is set to be greater than or equal to the thickness dimension of the fire-resistant coating material 15.

[0013] According to the invention recited in claim 4, the fire-resistant covering material 15 is provided above, below, and on both sides of the supported object 1 and the reinforcing bars 22, straddling one side of the wall main body 10 and one side of the interior fire-resistant covering material 21, so that the periphery of the supported object 1 and the reinforcing bars 22 can be covered evenly with the fire-resistant covering material 15. Moreover, the overlapping dimension of the interior fire-resistant covering material 21 and the interior fire-resistant covering material 15 above, below, and on both sides is set to be equal to or greater than the thickness of the fire-resistant covering material 15, so that the fire resistance of the portion where the interior fire-resistant covering material 21 and the interior fire-resistant covering material 15, which are other components, overlap can be improved.

[0014] The invention described in claim 5 is, for example, as shown in Figures 2 to 8, an architectural wood panel 10 having a hollow interior in which face materials 14 are attached to one side and the other side of a frame body, An opening 10a is formed on one side surface, a base material 20 fixed to the face material 14 attached to the other side surface of the frame body at the back side of the opening 10a; and a plate-shaped internal fire-resistant covering material 21 provided on one side of the base material 20 and exposed to the opening 10a, A feature of the present invention is that the surface of the face material 14 attached to one side of the frame body and the surface of the interior fire-resistant covering material 21 are flush with each other.

[0015] According to the invention described in claim 5, the interior fire-resistant covering material 21 is provided on one side of the base material 20 and exposed at the opening 10a on that side, so that by fixing the supported object 1 (reinforcement bar 22) with screws from above this interior fire-resistant covering material 21 toward the base material 20, it becomes easier to stabilize the attachment state of the supported object 1, leading to easier support of the supported object 1. Furthermore, because the surface of the face material 14 attached to one side of the frame is flush with the surface of the interior fire-resistant covering material 21, if the fire-resistant covering material 15 covering the surface of the face material 14 is positioned so as to span the surface of the interior fire-resistant covering material 21 as well, it is possible to prevent the fire-resistant covering from being interrupted.

[0016] The invention described in claim 6 is, for example, as shown in Figs. 2 to 8, in the architectural wood panel 10 described in claim 5, The frame body has a plurality of vertical members 11, 13 arranged in the vertical direction and a plurality of horizontal members 12, 13 arranged in the horizontal direction, The vertical members 11, 13 are characterized in that recesses 11a, 13a are notched into the surfaces on which the internal fire-resistant covering material 21 is provided, and the internal fire-resistant covering material 21 is fitted into the recesses 11a, 13a.

[0017] According to the invention described in claim 6, recesses 11a, 13a are formed in the surfaces of the vertical members 11, 13 that make up the frame body on the side where the interior fire-resistant covering material 21 is to be provided, and the interior fire-resistant covering material 21 is fitted into the recesses 11a, 13a, so that the interior fire-resistant covering material 21 can be placed between the vertical members 11, 13 while still contained in the recesses 11a, 13a. This allows the interior fire-resistant covering material 21 to be provided integrally with the architectural wood panel 10, so that the architectural wood panel 10 can be handled as a single architectural wood panel 10 with the interior fire-resistant covering material 21 exposed on its surface, which allows for efficient transportation of the architectural wood panel 10 and on-site construction of the wall 2 using the architectural wood panel 10.

[0018] The invention described in claim 7 is a method for constructing a wall 2 of a building, in which the architectural wood panel 10 described in claim 6 is fabricated in advance in a factory, as shown in Figures 1 to 9, and the architectural wood panel 10 is used as a wall body 10 to support a supported object 1 at a construction site, The supported object 1 is a plate-like body protruding from one side surface of the wall 2, a step of providing a reinforcing bar 22, to the upper surface of which the supported object 1 is fixed, on one side of the interior fire-resistant covering material 21 and fixing it with a screw 23 toward the base material 20; a step of fixing the supported object 1 to an upper surface of the reinforcing bar 22; and a step of providing a plate-shaped fire-resistant covering material 15 on one side surface of the wall main body 10 to cover the one side surface of the wall main body 10, The fire-resistant covering material 15 is characterized in that it is installed across one side of the wall main body 10 and one side of the interior fire-resistant covering material 21, while avoiding the supported object 1 and the reinforcing bar 22.

[0019] According to the invention described in claim 7, the architectural wood panels 10 are manufactured in advance in a factory, and then at the construction site, the architectural wood panels 10 are used as the wall body 10 to support the supported object 1 to construct the wall 2 of the building. Therefore, when transported, they can be transported together with other architectural wood panels, and construction can be carried out at the construction site simultaneously with other architectural wood panels, which is efficient. Furthermore, because the reinforcing bar 22 is provided on one side of the interior fire-resistant covering material 21 and the screw 23 is fixed toward the base material 20, the tip side of the screw 23 is supported by the base material 20 and the head side is supported by the reinforcing bar 22. This makes the screw 23 less likely to bend and less likely to undergo shear deformation or bending deformation, preventing the portion of the interior fire-resistant covering material 21 around the screw 23 from collapsing. Furthermore, because the supported object 1 is fixed to the upper surface of such reinforcing bar 22, this contributes to making it easier for the reinforcing bar 22 to support the supported object 1. Furthermore, when the fire-resistant covering material 15 is provided on one side of the wall body 10 to cover that side, the fire-resistant covering material 15 is provided so as to avoid the supported object 1 and the reinforcing bar 22 and to straddle one side of the wall body 10 and one side of the interior fire-resistant covering material 21, thereby preventing the fire-resistant covering of the wall body 10 from being interrupted. [Effects of the Invention]

[0020] According to the present invention, it is possible to easily support a supported object such as a shelf while ensuring that the fire-resistant coating provided on the surface of the wall is not interrupted. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 2 is a perspective view illustrating a support structure for a supported object. [Figure 2] FIG. 2 is a cross-sectional view showing a support structure for a supported object. [Figure 3] 1A and 1B are diagrams for explaining a manufacturing method of an architectural wood panel, in which (a) is a front view of the architectural wood panel before an interior fire-resistant covering material is provided, and (b) is a side view. [Figure 4] 1A and 1B are diagrams for explaining a manufacturing method of an architectural wood panel, in which (a) is a front view of the architectural wood panel and (b) is a side view. [Figure 5] FIG. 1 is a perspective view showing a wooden panel for construction. [Figure 6] 1A and 1B are diagrams for explaining the structure of a wall that includes architectural wood panels, in which (a) is a front view of the wall and (b) is a cross-sectional side view. [Figure 7]7A and 7B show a wall constructed using architectural wood panels, in which (a) is an end view taken along line AA in FIG. 6, and (b) is a cross-sectional view taken along line BB in FIG. 6. [Figure 8] 10A and 10B show a modified example of the support structure for the supported object, in which FIG. 10A is an end view of a portion other than the main part of the wall, and FIG. 10B is a cross-sectional view of the main part of the wall. [Figure 9] FIG. 10 is a perspective view showing a modified example of the support structure for the supported object. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Note that the directions in the following embodiments and illustrated examples are set solely for the convenience of explanation, and the side on which the supported object is provided is referred to as the front (front face).

[0023] In Fig. 1, the reference numeral 1 denotes a shelf (which may also be called a counter) that is the supported object. The shelf 1 is a rectangular wooden board that protrudes horizontally from one side of a wall 2 and is supported by a support structure provided on the wall 2. The shelf board 1 may be made of natural wood, or may be made of various wooden board materials such as plywood, laminated wood, particle board, etc. Alternatively, a shelf board may be used that is formed by surrounding a base material that is lighter than wood, such as a paper honeycomb or foam material, with a thin decorative board. 2, 6, and 7, the wall 2 is, for example, an exterior wall of a building, and the shelf board 1 protrudes from the side surface facing the interior of the room. Although the wall 2 in this embodiment is an exterior wall in this way, it may also be an interior wall (a structural wall inside the building), and is not particularly limited.

[0024] An interior finishing material 3 is provided on the side of the wall 2 facing the room, and the structure for supporting the shelf board 1 is covered and hidden by the interior finishing material 3. In other words, the interior finishing material 3 is provided on the indoor side of the wall 2, avoiding the shelf board 1, and covers the support structure for the shelf board 1, which is the supported object. In this embodiment, wallpaper (cloth) is used as the interior finishing material 3, but the present invention is not limited to this, and other materials such as board materials such as plywood, tiles, diatomaceous earth, plaster, paint, etc. may also be used.

[0025] An exterior material 4 (exterior finishing material) is provided on the outdoor side of the wall 2, which is an exterior wall, via a moisture-permeable waterproof sheet 4a and furring strips 4b.

[0026] As shown in FIGS. 2 to 7, the wall 2 of this embodiment is constructed using a wooden architectural panel 10 as the wall body. Architectural wood panels 10 refer to building components such as walls, floors, and roofs that have been pre-assembled in a factory, and buildings are constructed by assembling the architectural wood panels 10 appropriately at the construction site. This type of building construction method is called the panel construction method. In the panel construction method, the walls 2 of a building are constructed by arranging multiple architectural wood panels 10 side by side. In this embodiment, the architectural wood panel adjacent to the architectural wood panel 10 on which the shelf board 1 is provided will be referred to as 10N. In this embodiment, the building is constructed using the panel construction method, but this is not limited to this, and the building may also be constructed using conventional frame construction, wall construction, two-by-four construction, etc.

[0027] The architectural wood panel 10 (10N) is made up of vertical and horizontal frame members 11 and 12 assembled into a rectangular shape, with auxiliary beam members 13 assembled vertically and horizontally inside the rectangular frame to form a frame body, and face members 14 attached to one or both sides of this frame body, resulting in a hollow structure. The architectural wood panels 10 used for the wall 2 also have face members 14 attached to both sides of the frame body. Furthermore, the hollow space inside is usually filled with insulating material such as glass wool or rock wool.

[0028] Fire-resistant covering material 15 is attached to the surfaces (front and back) of architectural wood panel 10 (10N), which is the wall body, to provide fire resistance to wall 2. Fire-resistant covering material 15 is provided on the indoor and outdoor sides of wall 2, avoiding shelf boards 1. In this embodiment, gypsum board (reinforced gypsum board) is used as the fire-resistant covering material 15, but this is not limited to this, and any material that allows screws to pass through, such as rock wool board or glass wool board, may be used as appropriate.

[0029] The fire-resistant covering material 15 is provided in multiple layers on the front and back of the architectural wood panel 10. In this embodiment, two layers of gypsum boards with a thickness of 12 mm or more (21.0 mm in this embodiment) are provided on the front and back of the architectural wood panel 10. However, this is not limited to this, and a single thick gypsum board (for example, 25.0 mm thick) may be used, or three or more thin gypsum boards may be provided on top of each other. In addition, the fire-resistant covering material 15 provided on the indoor side of the wall 2 is arranged so as to avoid the shelf board 1, and therefore covers the indoor side of the wall 2 in a divided (separated) state. In this embodiment, the fire-resistant covering material 15 is provided on the top, bottom, left, and right of the shelf board 1. The interior finishing material 3 and the exterior material 4 (the moisture-permeable waterproof sheet 4a and the furring strips 4b) are provided by being superimposed on the fire-resistant covering material 15.

[0030] A support structure for supporting shelf boards 1 is applied to the wall 2 as described above. More specifically, an opening 10a is formed on one side (front) of the architectural wood panel 10. The support structure for supporting shelf boards 1 is provided corresponding to the position of opening 10a, and includes a base material 20, an interior fire-resistant covering material 21, a reinforcing bar 22, and the above-mentioned fire-resistant covering material 15.

[0031] The opening 10a is formed in the architectural wood panel 10, which is one of the multiple architectural wood panels 10, 10N that make up the wall 2 of a building and serves as the wall body for supporting the shelf board 1. This architectural wood panel 10 has left and right vertical frames 11 and auxiliary cross members 13 arranged parallel to these vertical frames 11, with recesses 11a, 13a cut into the front sides of these vertical frames 11 and auxiliary cross members 13. Furthermore, the front-side face members 14 of the architectural wood panel 10 are arranged above and below the recesses 11a, 13a. The opening 10a refers to the gap between the face members 14 arranged above and below in this manner, including the recesses 11a, 13a.

[0032] The sum of the notch depth of the recesses 11a, 13a (notch dimension in the front and back directions) and the thickness dimension of the face material 14 is approximately equal to the thickness dimension of the interior fire-resistant covering material 21 (the thickness dimension of two sheets). Furthermore, the vertical dimensions of the recesses 11a, 13a and the dimension between the face materials 14 arranged separately above and below are approximately equal to the vertical dimensions of the interior fire-resistant covering material 21. That is, the interior fire-resistant covering material 21 is fitted snugly into the opening 10a.

[0033] The base material 20 is a rectangular wooden plate, and is fixed to the architectural wood panel 10 on the inner side of the opening 10a. More specifically, multiple base materials 20 are used and inserted into the hollow interior of the architectural wood panel 10 through the opening 10a, and are respectively arranged between the left and right vertical frame members 11 and the vertical auxiliary cross member 13 located between them. These multiple base materials 20 are then bonded and fixed with adhesive or the like to the inside surface of the face member 14 located at the back of the opening 10a (the face member 14 on the back side). Fixation with fixing materials such as screws is also possible. They may also be fixed to the left and right vertical frame members 11 and the auxiliary cross member 13.

[0034] The interior fire-resistant covering material 21 is provided in multiple layers on one side (front) of the base material 20 and is exposed at the opening 10a. The interior fire-resistant covering material 21 is made of the same material as the fire-resistant covering material 15 used on the front side of the architectural wood panel 10, and in this embodiment, two layers of gypsum board with a thickness of 12 mm or more (21.0 mm in this embodiment) are used. This interior fire-resistant covering material 21 is fitted snugly into the opening 10a of the architectural wood panel 10. That is, the length of this interior fire-resistant covering material 21 is set to be approximately equal to the width (left-right dimension) of the architectural wood panel 10. The vertical dimension is also set to be approximately equal to the vertical dimension of the recesses 11a, 13a formed in the left and right vertical frame members 11 and auxiliary crosspiece members 13. The thickness is also set to be approximately equal to the sum of the notch depth of the recesses 11a, 13a (the notch dimension in the front-back direction) and the thickness of the face member 14. Therefore, when the interior fire-resistant covering material 21 is placed on the base material 20 and fitted snugly into the opening 10a, one side of the architectural wood panel 10 (i.e., the face member 14 on the front side) and one side of the interior fire-resistant covering material 21 are flush with each other. Furthermore, the left and right side end faces of the architectural wood panel 10 and both longitudinal end faces of the interior fire-resistant covering material 21 are flush with each other. The interior fire-resistant covering material 21 is joined and fixed to the base material 20, the left and right vertical frame materials 11, and the auxiliary crosspiece materials 13 with adhesive or the like, but may also be fixed with fixing materials such as screws.

[0035] The reinforcing bars 22 are wooden blocks, and are provided on one side (front) of the interior fire-resistant covering material 21 and fixed with screws 23 toward the base material 20. An adhesive may also be used. The length of the screws 23 is set so that the tips reach the reinforcing bar 22 when the heads are flush with one side of the reinforcing bar 22. In other words, both ends of the screws 23 in the length direction are supported by the wood, and the center portion passes through the interior fire-resistant covering material 21. Such screws 23 are driven into a plurality of locations at intervals in the longitudinal direction of the reinforcing bar 22. These plurality of screws 23 may be arranged in the same straight line or in a vertical zigzag pattern. The shelf board 1, which is the supported object 1, is fixed to the upper surface of the reinforcing bar 22, which is fixed to the base material 20 with screws via the interior fire-resistant covering material 21. The shelf board 1 is fixed to the reinforcing bar 22 with adhesive or the like, but it may also be fixed with a fixing material such as screws.

[0036] Of the fire-resistant coating materials 15 that cover the surface of the architectural wood panel 10, the two-ply fire-resistant coating material 15 that covers one side (front) of the architectural wood panel 10 is provided across the front panel 14 of the architectural wood panel 10 and one side of the interior fire-resistant coating material 21. The double-layered fire-resistant covering material 15 is provided above, below, and on both sides of the shelf board 1 and reinforcing bar 22, straddling one side of the architectural wood panel 10 and one side of the interior fire-resistant covering material 21. In other words, as shown in Fig. 6, the double-layered fire-resistant covering material 15 is provided above the shelf board 1 and reinforcing bar 22, below the shelf board 1 and reinforcing bar 22, and on both the left and right sides of the shelf board 1 and reinforcing bar 22 (i.e., on all four sides).

[0037] Furthermore, these double-ply fire-resistant covering materials 15 on all four sides are in contact with the shelf board 1 and reinforcing bars 22. That is, the double-ply fire-resistant covering material 15 located above the shelf board 1 and reinforcing bars 22 is in contact with the top surface of the shelf board 1, and the double-ply fire-resistant covering material 15 located below the shelf board 1 and reinforcing bars 22 is in contact with the bottom surface of the reinforcing bars 22 and the top surface of the shelf board 1. Furthermore, the double-ply fire-resistant covering materials 15 located on both the left and right sides of the shelf board 1 and reinforcing bars 22 are in contact with both the left and right sides of the shelf board 1 and reinforcing bars 22. In other words, the double-ply fire-resistant covering material 15 is provided on one side (front) of the architectural wood panel 10, avoiding the shelf board 1 and reinforcing bars 22.

[0038] As described above, the double-ply fire-resistant covering material 15 on all four sides is provided across the front panel 14 and one side of the interior fire-resistant covering material 21, but the overlapping dimension between the double-ply fire-resistant covering material 15 on all four sides and the interior fire-resistant covering material 21 is set to be equal to or greater than the thickness of two layers of the fire-resistant covering material 15. If the fire-resistant covering material 15 is a single, thick piece of material, the overlapping dimension is set to be equal to or greater than the thickness of that single piece of material. In this embodiment, the thickness of one fire-resistant covering material 15 is 21.0 mm as described above, so the thickness of the two-ply fire-resistant covering material 15 is 42.0 mm. Therefore, the overlapping dimension between the two-ply fire-resistant covering material 15 on all four sides and the interior fire-resistant covering material 21 is 42.0 mm. In other words, the dimensions from the edges of the shelf 1 and the reinforcing bars 22 to each of the four sides of one side of the interior fire-resistant covering material 21 are set to be at least greater than the thickness dimension of the fire-resistant covering material 15 (in this embodiment, two layers of fire-resistant covering material 15).

[0039] The double-layered fire-resistant covering material 15 provided on one side of the architectural wood panel 10, avoiding the shelf boards 1 and reinforcing bars 22, is covered with the interior finishing material 3 as shown in Figure 1, and the boundaries between the double-layered fire-resistant covering materials 15 on all four sides are shielded. Furthermore, the interior side of the reinforcing bars 22 is flush with the interior side of the fire-resistant covering material 15, and the interior finishing material 3 covers not only the fire-resistant covering material 15 but also the reinforcing bars 22. Therefore, the reinforcing bars 22 are not visible on the interior side of the wall 2, and only the shelf boards 1 appear to protrude.

[0040] The shelf board 1 is supported by the support structure as described above and protrudes from one side surface of the wall 2, and items can be placed on the top surface of the shelf board 1 for storage.

[0041] When constructing a wall 2 with a shelf 1 protruding from one side, the architectural wood panel 10 is first manufactured in a factory. The base material 20 is fixed to the inner surface of the rear panel 14 at the back of the opening 10a, and two layers of interior fire-resistant covering material 21 are then laid on top of the base material 20. The interior fire-resistant covering material 21 is then snugly fitted into the recesses 11a, 13a formed in the left and right vertical frames 11 and auxiliary crosspieces 13, so that it is flush with the surface of the architectural wood panel 10 while still exposed from the opening 10a. The interior fire-resistant covering material 21 appears as a strip on the front side of the architectural wood panel 10 manufactured in this way, as shown in Figure 5.

[0042] The architectural wood panel 10, which has been manufactured in advance in a factory or the like, is transported to a construction site together with other architectural wood panels 10N, and at the construction site, the main wall body of the wall 2 of the building is constructed by arranging multiple architectural wood panels 10, 10N side by side.

[0043] Next, the reinforcing bars 22 are provided on one side of the interior fireproof covering material 21 of the architectural wood panel 10 on which the shelf board 1 is provided in the wall 2 of the building, and are fixed by driving a plurality of screws 23 into the base material 20. Then, the shelf board 1 is fixed to the upper surface of the reinforcing bar 22. Although the shelf board 1 is fixed to the upper surface of the reinforcing bar 22 using an adhesive, it may also be fixed by driving a screw obliquely into the base material 20, for example. Fixing using an adhesive and fixing materials such as screws may be used in combination.

[0044] Next, two layers of fire-resistant covering material 15 are placed on one side of the wall main body 10, 10N to cover one side (front: indoor side) and the other side (back: outdoor side) of the wall main body 10, 10N. At this time, the fire-resistant covering material 15 is placed across one side of the wall main body 10, 10N and one side of the interior fire-resistant covering material 21, while avoiding the shelf board 1 and the reinforcing bar 22. Furthermore, the fire-resistant covering material 15 is placed so as to come into contact with both the shelf board 1 and the reinforcing bar 22. The fire-resistant covering material 15 is provided across the architectural wood panel 10 on which the shelf board 1 is provided and the adjacent architectural wood panel 10N.

[0045] An interior finishing material 3 is provided on the surface of the fire-resistant covering material 15 provided on the indoor side, avoiding the shelf boards 1, and an exterior material 4 is provided on the surface of the fire-resistant covering material 15 provided on the outdoor side, via a moisture-permeable waterproof sheet 4a and furring strips 4b. The construction of the wall 2 is carried out in the manner described above.

[0046] According to this embodiment, the following excellent effects are achieved. Specifically, the interior fire-resistant covering material 21 is provided on one side of the base material 20 and exposed at the opening 10a, and the reinforcing bar 22 is provided on one side of the interior fire-resistant covering material 21 and fixed with the screw 23 facing the base material 20. Therefore, the tip of the screw 23 is supported by the base material 20, and the head of the screw 23 is supported by the reinforcing bar 22. This reduces the degree of flexure of the screw 23 and reduces the risk of shear or bending deformation, preventing the collapse of the portion of the interior fire-resistant covering material 21 around the screw 23. Furthermore, the shelf board 1 is fixed to the upper surface of the reinforcing bar 22, which contributes to the ease with which the reinforcing bar 22 supports the shelf board 1. Furthermore, one side of the wall main body 10 and one side of the interior fire-resistant covering material 21 are flush with each other, and the fire-resistant covering material 15 is provided across both sides of the wall main body 10 and the interior fire-resistant covering material 21, preventing the fire-resistant covering of the wall main body 10 from being interrupted. Furthermore, in recent years, there has been a demand for the realization of a carbon-neutral society by promoting carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the SDGs (Sustainable Development Goals), and in the construction industry, efforts are being made to build buildings using wood, which has low carbon dioxide emissions. In this embodiment, the wooden parts are covered with the fire-resistant covering material 15 and the interior fire-resistant covering material 21, which is advantageous for constructing wooden buildings and can promote the construction of wooden buildings, thereby contributing to the realization of a carbon-neutral society by promoting carbon neutrality and the achievement of the SDGs.

[0047] Furthermore, because the fire-resistant covering material 15 contacts the upper surface of the shelf board 1 and the underside of the reinforcing bar 22, both the reinforcing bar 22 and the shelf board 1 fixed to its upper surface can be sandwiched from above and below by the fire-resistant covering material 15. As a result, the underside of the reinforcing bar 22 is supported by the fire-resistant covering material 15, which more reliably prevents the screws 23 from deflecting. Moreover, because the base end side of the shelf board 1 in the protruding direction is supported from above, the movement of the shelf board 1, which tends to cause the tip end in the protruding direction to displace downward due to the weight of the shelf board 1 itself or the load when an object is placed on it, and the base end to displace upward, can be prevented.

[0048] Furthermore, because one side of the reinforcing bar 22 is flush with one side of the fire-resistant covering material 15, the reinforcing bar 22 can be finished together with the fire-resistant covering material 15 and placed within the same wall surface. This prevents the reinforcing bar 22 from protruding from one side of the wall 2 of the building, improving the design of the wall 2 of the building.

[0049] Furthermore, above, below, and on both sides of the shelf boards 1 and reinforcing bars 22, the fire-resistant covering material 15 is provided across one side of the wall body 10 and one side of the interior fire-resistant covering material 21, so that the shelf boards 1 and reinforcing bars 22 can be covered evenly with the fire-resistant covering material 15. Moreover, the overlapping dimension of the interior fire-resistant covering material 21 and the interior fire-resistant covering material 15 above, below, and on both sides is set to be equal to or greater than the thickness of the fire-resistant covering material 15, so that the fire resistance of the portions where the interior fire-resistant covering material 21 and the interior fire-resistant covering material 15, which are other components, overlap, can be improved.

[0050] Furthermore, since the interior fire-resistant covering material 21 is provided on one side of the base material 20 and exposed at the opening 10a on that side, fixing the shelf board 1 (i.e., the reinforcing bars 22) with screws from above this interior fire-resistant covering material 21 toward the base material 20 makes it easier to stabilize the attachment of the shelf board 1 and to support the shelf board 1. Furthermore, since the surface of the face material 14 attached to one side of the frame is flush with the surface of the interior fire-resistant covering material 21, if the fire-resistant covering material 15 covering the surface of the face material 14 is positioned so as to span the surface of the interior fire-resistant covering material 21 as well, it is possible to prevent the fire-resistant covering from being interrupted.

[0051] Furthermore, recesses 11a, 13a are cut into the surfaces of the vertical members 11, 13 that make up the frame body on the side where the interior fire-resistant covering material 21 is to be provided, and the interior fire-resistant covering material 21 is fitted into the recesses 11a, 13a, so that the interior fire-resistant covering material 21 can be placed between the vertical members 11, 13 while still contained in the recesses 11a, 13a. This allows the interior fire-resistant covering material 21 to be provided integrally with the architectural wood panel 10, so that the architectural wood panel 10 can be handled as a single architectural wood panel 10 with the interior fire-resistant covering material 21 exposed on its surface, which allows for efficient transportation of the architectural wood panel 10 and on-site construction of the wall 2 using the architectural wood panel 10.

[0052] Furthermore, the architectural wood panels 10 are fabricated in advance in a factory, and the wall 2 of the building is constructed at the construction site using the architectural wood panels 10 as the wall body 10 that supports the shelf boards 1, so that the architectural wood panels 10 can be transported together with other architectural wood panels, and construction can be carried out at the construction site simultaneously with other architectural wood panels, which is efficient. Furthermore, because the reinforcing bar 22 is provided on one side of the interior fire-resistant covering material 21 and the screw 23 is fixed toward the base material 20, the tip side of the screw 23 is supported by the base material 20 and the head side is supported by the reinforcing bar 22. This makes the screw 23 less likely to bend and less likely to undergo shear deformation or bending deformation, preventing the portion of the interior fire-resistant covering material 21 around the screw 23 from collapsing. Furthermore, because the shelf board 1 is fixed to the upper surface of such reinforcing bar 22, this contributes to the ease with which the shelf board 1 is supported by the reinforcing bar 22. Furthermore, when the fire-resistant covering material 15 is provided on one side of the wall body 10 to cover that side, the fire-resistant covering material 15 is provided so as to avoid the shelf board 1 and the reinforcing bar 22 and to straddle the one side of the wall body 10 and the one side of the interior fire-resistant covering material 21, thereby preventing the fire-resistant covering of the wall body 10 from being interrupted.

[0053] [Modification] It should be noted that the embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Modifications will be described below. The following modifications may be combined as much as possible. In each of the following modifications, elements common to the above-described embodiments will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0054] [Variation 1] FIG. 8 illustrates a support structure for a shelf board 1 when the shelf board 1 is provided on one side of a wall 2 in a so-called two-by-four house.

[0055] In the case of a two-by-four house, a face plate 34 is attached to the exterior side of a two-by-four material 31, which is a square timber set to a predetermined dimension, to form the wall 2 of the building. In this embodiment, a two-by-four panel 30 is used, in which a plurality of two-by-four materials 31 are attached to the interior side of the face plate 34. This two-by-four panel 30 can be manufactured in advance in a factory or the like and transported to the construction site in a panelized state. Then, it is placed side by side with an adjacent two-by-four panel 30N to form the wall body. In this modified example, two-by-four panels 30 manufactured in advance at a factory or the like are used, but the wall body may also be constructed using two-by-four materials 31 and facing materials 34 without being made into panels.

[0056] In the case of such a 2x4 panel 30, since no facing material 34 is provided on the indoor side, the entire indoor side (front side) of the panel 30 is made into an opening 30a. Therefore, the height positions of the base material 20 and the interior fire-resistant covering material 21, and therefore the height positions of the shelf boards 1, may be determined at the construction site. In the two-by-four material 31 of the two-by-four panel 30, a recess 31a into which the interior fire-resistant covering material 21 fits snugly is cut out on the front side at the height position where the interior fire-resistant covering material 21 is provided. Therefore, the position where the recess 31a is cut out may be particularly set as the opening 30a.

[0057] The support structure for the shelf board 1 is not significantly different from the above embodiment, and comprises a base material 20 fixed to the wall main body (face material 34 of the two-by-four panel 30) at the back side of the opening 30a, a plate-shaped interior fire-resistant covering material 21 provided on one side of the base material 20 and exposed to the opening 30a, a reinforcing bar 22 provided on one side of the interior fire-resistant covering material 21 and fixed with a screw 23 toward the base material 20, with the shelf board 1 fixed to its upper surface, and a plate-shaped fire-resistant covering material 15 provided on one side of the two-by-four panel 30, which is the wall main body, avoiding the shelf board 1 and the reinforcing bar 22, and covering one side of the two-by-four panel 30. One side of the two-by-four panel 30 (the front of the two-by-four material 31) and one side of the interior fire-resistant covering material 21 are flush with each other, and the fire-resistant covering material 15 is provided across one side of the two-by-four panel 30 (the front of the two-by-four material 31) and one side of the interior fire-resistant covering material 21.

[0058] As described above, the support structure for the shelf boards 1 can be applied even to a two-by-four house, and therefore the shelf boards 1 can be provided on the walls 2 of a two-by-four house in the same way as in the case of panel construction. For example, even when a house is constructed using a framework construction method, the walls are formed to be hollow inside, so the support structure of the shelf board 1 can be applied. In this case, the base material 20 is fixed to the pillars (studs) that make up the wall.

[0059] [Variation 2] As shown in FIG. 9, a plurality of shelf boards 1 may be provided at intervals in the vertical direction.

[0060] Furthermore, as shown in the figure, left and right side panels 41 and a door panel 42 may be provided between the upper and lower shelf panels 1, so that the hanging cupboard 40 can be attached to the wall 2. In other words, by providing accessories to the shelf panel 1, it is possible to add functions, change the design, or reinforce the installation state of the shelf panel 1.

[0061] In addition, when multiple shelf boards 1 are provided with gaps between them vertically, a base material 20 and an interior fire-resistant covering material 21 may be prepared for each shelf board 1, or a single base material 20 and interior fire-resistant covering material 21 that is longer in the vertical direction may be shared.

[0062] According to this modified example, by providing multiple shelves 1 spaced apart vertically, it is possible to secure a large storage space using the shelves 1 and to increase the variety by forming a hanging cupboard 40, thereby improving usability. Furthermore, for example, by providing a bracket (also called a brace or diagonal brace) between the underside of the shelf board 1 and one side of the reinforcing bar 22, the shelf board 1 is reinforced, allowing heavier items to be placed and stored.

[0063] [Other Modifications] A plurality of architectural wood panels 10, with the interior fire-resistant covering material 21 exposed from the opening 10a, may be arranged horizontally, and shelf boards 1 and reinforcing bars 22 set to a length that spans the plurality of architectural wood panels 10. In other words, the length of the shelf boards 1 and reinforcing bars 22 may be set longer than the width of one architectural wood panel 10, in which case a plurality of architectural wood panels 10 are used lined up horizontally.

[0064] In the above embodiment, the interior side surface of the reinforcing bars 22 is flush with the interior side surface of the fire-resistant covering material 15, but the interior side surface of the reinforcing bars 22 does not have to be flush with the interior side surface of the fire-resistant covering material 15 and may protrude along the shelf board 1. In other words, the reinforcing bars 22 may protrude from the interior side of the wall 2. [Explanation of symbols]

[0065] 1 shelf 2. Wall 10. Architectural wood panels 10a opening 11 Vertical frame 11a Recess 12 Horizontal frame material 13 Auxiliary beam material 13a Recess 14 Surface material 15 Fireproof cladding 20 Undercoat 21 Internal fireproof coatings 22 Reinforcement bar 23 Bis

Claims

1. An opening is formed on one side of a hollow wall body that constitutes the wall of the building, A structure for supporting a plate-shaped supported object protruding from one side surface of the wall, a base material fixed to the wall main body at the back side of the opening; a plate-shaped interior fire-resistant covering material provided on one side of the base material and exposed to the opening; a reinforcing bar provided on one side of the interior fire-resistant covering material, fixed to the base material with a screw, and having the supported object fixed to an upper surface thereof; a plate-shaped fire-resistant covering material that is provided on one side surface of the wall main body and covers the one side surface of the wall main body while avoiding the supported object and the reinforcing bar, One side of the wall body and one side of the interior fire-resistant covering material are flush with each other, A support structure for a supported object, characterized in that the fire-resistant covering material is provided across one side of the wall body and one side of the interior fire-resistant covering material.

2. 2. The support structure for a supported object according to claim 1, A support structure for a supported object, characterized in that the fire-resistant covering material is in contact with the upper surface of the supported object and the lower surface of the reinforcing bar.

3. 2. The support structure for a supported object according to claim 1, A support structure for a supported object, characterized in that one side of the reinforcing bar and one side of the fire-resistant covering material are flush with each other.

4. The support structure for a supported object according to any one of claims 1 to 3, The fire-resistant covering material is provided above, below, and on both sides of the supported object and the reinforcing bar, straddling one side surface of the wall main body and one side surface of the interior fire-resistant covering material, A support structure for a supported object, characterized in that the overlapping dimension between the internal fire-resistant covering material and the fire-resistant covering material in each of the above, below, and both sides directions is set to be greater than or equal to the thickness dimension of the fire-resistant covering material.

5. In an architectural wood panel in which face materials are attached to one side and the other side of a frame body and which is configured to have a hollow interior, An opening is formed on one side, a base material fixed to the face material attached to the other side surface of the frame body at the rear side of the opening; a plate-shaped internal fire-resistant covering material provided on one side of the base material and exposed to the opening, An architectural wood panel characterized in that the surface of the facing material attached to one side of the frame body is flush with the surface of the interior fire-resistant covering material.

6. The architectural wood panel according to claim 5, The frame body has a plurality of vertical members arranged in the vertical direction and a plurality of horizontal members arranged in the horizontal direction, An architectural wood panel characterized in that a recess is formed in the surface of each of the multiple vertical members on which the interior fire-resistant covering material is to be installed, and the interior fire-resistant covering material is fitted into the recess.

7. A method for constructing a wall of a building, comprising: fabricating the architectural wood panel according to claim 6 in advance at a factory; and then, at a construction site, constructing the wall of the building using the architectural wood panel as a wall body that supports a supported object, the supported object is a plate-like body protruding from one side surface of the wall, a step of providing a reinforcing bar, the upper surface of which is fixed to the supported object, on one side of the interior fire-resistant covering material and fixing it with a screw toward the base material; a step of fixing the supported object to an upper surface of the reinforcing bar; and a step of providing a plate-shaped fire-resistant covering material on one side surface of the wall main body to cover the one side surface of the wall main body, A wall construction method characterized in that the fire-resistant covering material is installed across one side of the wall body and one side of the interior fire-resistant covering material, avoiding the supported object and the reinforcing bars.

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