Wall panel and wall panel construction method

Abstract

To provide a wall panel into which a terrace window can be incorporated and which can be lifted up and installed on a foundation, and a wall panel construction method.SOLUTION: A wall panel 1 includes a window frame 5 to which a shoji screen 6 is attached, and a panel frame 2 that supports the window frame 5, and constitutes the wall surface of a building. The panel frame 2 includes left and right vertical members 23, and an upper member 21 connected to each vertical member. The window frame 5 includes left and right vertical frames, and an upper frame 51 and a lower frame 52 connected to the vertical frames. The lower frame 52 has a foundation mounting portion 524 that is placed on the foundation of the building, and a first reinforcing member 7 that is positioned on the outdoor side of the foundation mounting portion 524 and can support the lower frame 52 is detachably attached to the left and right vertical members 23.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a wall panel that constitutes a wall surface of a building and a method for installing the wall panel. [Background technology]

[0002] Patent Document 1 discloses a construction method for a sash frame built-in wall for a bay window, to which a sash frame for a bay window (terrace window) is attached. That is, in a factory, a sash frame for a bay window (terrace window) is attached to the inside of a U-shaped connecting panel consisting of a rectangular sleeve panel and a small wall panel, and a guard material for protecting the bottom frame of the sash frame is attached to the lower end of the connecting panel. This connecting panel is placed on a rack, and then transported to the construction site by a truck or the like. Next, the connecting panel is unloaded from the truck or the like onto a rack, and the guard material is removed while the connecting panel is lifted by a crane. After that, the connecting panel is erected and fixed on a half base and a floor panel that are placed and fixed on a foundation, thereby constructing a sash frame built-in wall for a bay window. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-189364 Summary of the Invention [Problem to be solved by the invention]

[0004] In the construction method of Patent Document 1, after the guard material is removed from the connecting panel lifted by a crane, there is no guard material between the time the connecting panel is fixed onto the half foundation, so there is a risk of the connecting panel deforming. Shoji screens for terrace windows in particular are heavy due to their large height and glass size. For this reason, if a connecting panel with a shoji screen installed within the sash frame is lifted after the guard material is removed, the bottom frame of the sash frame will deform under the weight of the shoji screen, and the shoji screen may come off the sash frame. For this reason, in Patent Document 1, only the sash frame is attached to the connecting panel, and it is not possible to lift and install the connecting panel with the shoji screen installed.

[0005] To provide a wall panel and a construction method for the wall panel, which can be hoisted and installed on a base with a reinforcing material attached, and can also be hoisted and installed with a shoji screen assembled therein. [Means for solving the problem]

[0006] The wall panel of the present invention is a wall panel that constitutes the wall of a building, comprising a window frame to which a shoji screen is attached and a panel frame that supports the window frame, wherein the panel frame has left and right vertical members and an upper member connected to each of the vertical members, the window frame has left and right vertical frames and upper and lower frames connected to each of the vertical frames, the lower frame has a foundation mounting portion to be placed on the foundation of the building, and a first reinforcing member that is positioned on the outside of the foundation mounting portion and is capable of supporting the lower frame is removably attached to each of the vertical members.

[0007] The wall panel construction method of the present invention is characterized in that it includes the steps of: lifting up a wall panel having a panel frame having left and right vertical members and an upper member connected to each of the vertical members; a window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a foundation mounting portion to be placed on the foundation of a building; a paper screen incorporated into the window frame; and a first reinforcing member that is detachably attached to the left and right vertical members and is positioned on the outside of the foundation mounting portion and capable of supporting the lower frame; and placing the foundation mounting portion of the lower frame on the foundation of a building, and then removing the first reinforcing member.

[0008] The method for constructing a wall panel of the present invention is characterized in that it includes the steps of: lifting up a wall panel having a panel frame having left and right vertical members and an upper member connected to each of the vertical members; a window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a base mounting portion to be placed on the foundation of a building; a paper screen incorporated into the window frame; a first reinforcing member that is detachably attached to the left and right vertical members and is positioned on the outside of the base mounting portion and capable of supporting the lower frame; and a second reinforcing member that is detachably attached to the left and right vertical members and is capable of supporting the base mounting portion; removing the second reinforcing member from the left and right vertical members, and then placing the base mounting portion of the lower frame on the foundation of a building, and then removing the first reinforcing member. Effect of the Invention

[0009] According to the present invention, it is possible to provide a wall panel and a construction method for the wall panel, which can be lifted and installed on a base with reinforcing materials attached, and can also be lifted and installed with a shoji screen installed. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an interior view showing a wall panel according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a vertical cross-sectional view showing the wall panel of the embodiment. [Diagram 3] FIG. 2 is a cross-sectional view showing the panel of the embodiment. [Figure 4] FIG. 4 is an enlarged perspective view showing a first connecting fitting. [Diagram 5] 1A to 1C are diagrams showing the construction procedure for wall panels. [Figure 6] 1A to 1C are diagrams showing the construction procedure for wall panels. [Figure 7] 1A to 1C are diagrams showing the construction procedure for wall panels. [Figure 8] 1A to 1C are diagrams showing the construction procedure for wall panels. [Figure 9] 11A to 11C are diagrams showing the construction procedure of a wall panel according to a modified example of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 3, the wall panel 1 of this embodiment is handled as a single structure when attached to a building, and includes a panel frame 2 and a terrace window (floor window) 4. Furthermore, the wall panel 1 includes a first reinforcing member 7 and a second reinforcing member 8 that are used when the wall panel 1 is transported from a factory where the wall panel 1 is manufactured to a construction site and then installed on the building. Fig. 1 is an interior view of the wall panel 1 as seen from the inside of the room, and Fig. 2 and Fig. 3 are vertical and horizontal cross-sectional views of the wall panel 1. In each cross-sectional view of Fig. 2 and Fig. 3, hatching showing the cross-sections of the window frame 5 and the shoji screen 6 is omitted. Also, the pillar 110 shown in Fig. 3 is a pillar erected on the foundation of the building, and is disposed adjacent to the wall panel 1 when the wall panel 1 is installed in the building. In the following description, the left-right direction of the wall panel 1 is defined as the X-axis direction, the up-down direction of the wall panel 1 is defined as the Y-axis direction, and the projection direction (indoor / outdoor direction) of the wall panel 1 is defined as the Z-axis direction. The X, Y, and Z axis directions are perpendicular to each other.

[0012] [Panel Frame] The panel frame 2 is configured in a gate shape and comprises an upper member 21 made of wood (solid material), vertical members 22, 23, horizontal members 24, vertical bars 25, intermediate vertical members 26, 27, and auxiliary vertical members 28, 29, and a surface member 30 is attached to the exterior surface. The vertical members 22 and 23 have their upper ends abutted against the undersides of the left and right ends of the upper member 21, and the upper member 21 and the vertical members 22 and 23 are framed by horizontal members. The horizontal member 24 is hung between the vertical members 22 and 23, and the vertical crosspiece 25 is hung between the upper member 21 and the horizontal member 24. The intermediate vertical members 26, 27 are fixed to the inner peripheral side surfaces of the vertical members 22, 23 in the range from the lower surface position of the horizontal member 24 to the lower ends of the vertical members 22, 23. The auxiliary vertical members 28, 29 are fixed to the inner peripheral side surfaces of the intermediate vertical members 26, 27. The intermediate vertical members 26, 27 and the auxiliary vertical members 28, 29 have shorter projected dimensions than the upper member 21, the vertical members 22, 23, and the horizontal member 24. The upper member 21, vertical members 22, 23, and vertical crosspiece 25 form the panel wooden frame on the outer periphery, and the horizontal member 24, intermediate vertical members 26, 27, and auxiliary vertical members 28, 29 form the panel wooden frame around the sash. The surface material 30 is made of particle board and is attached with adhesive or the like to the exterior faces of the vertical members 22, 23 and intermediate vertical members 26, 27 and to the exterior faces between the top member 21 and the horizontal member 24. Therefore, the surface material 30 is provided in a gate shape as a whole.

[0013] [Terrace window] The terrace window 4 is arranged in an opening defined by a gate-shaped panel frame 2 and a first reinforcing member 7 and a second reinforcing member 8 attached to this panel frame 2. The terrace window 4 is a sliding window equipped with a window frame 5 and a shoji screen 6, and is a bay window whose lower end is at floor level of the building. The window frame 5 is composed of an upper frame 51, a lower frame 52, and left and right vertical frames 53, 54. The window frame 5 in this embodiment is made of synthetic resin, and is formed by cutting the ends of each frame 51 to 54 at a 45 degree angle and welding the small ends together. As shown in Figures 2 and 3, each of the frames 51 to 54 has an exterior mounting piece 511, 521, 531, 541 protruding on the outer periphery of the window frame 5, and an interior mounting piece 512, 522, 532, 542 protruding on the interior side of the window frame 5. 3, a retaining piece 523 having a generally L-shaped cross section is formed on the underside of the lower frame 52 to retain the outdoor end of the lower frame bracket 55 that reinforces the lower frame 52. The underside of the lower frame 52 that is on the indoor side of the outdoor mounting piece 521 forms a base mounting portion 524 to be placed on the base 100 as described below.

[0014] The lower frame bracket 55 includes a support piece 551 disposed along the lower surface of the lower frame 52, and a fixing piece 552 extending downward from the indoor end of the support piece 551. A groove that opens to the upper surface is formed in the support piece 551, and a sealant that abuts against the lower surface of the lower frame 52 to seal the gap between the lower frame bracket 55 and the lower frame 52 and improve watertightness is attached to the groove. The lower frame bracket 55 is attached to the lower frame 52 by, for example, adhering the upper surface of the support piece 551 to the lower surface of the lower frame 52 with double-sided tape. The length dimension of the lower frame bracket 55 in the X-axis direction is slightly shorter than the length dimension of the lower frame 52.

[0015] The exterior mounting pieces 511, 531, 541 of the upper frame 51 and the vertical frames 53, 54 are fixed to the exterior facing surfaces of the horizontal member 24 and the intermediate vertical members 26, 27 with screws 58 via the surface member 30. Therefore, the horizontal member 24 and the intermediate vertical members 26, 27 function as a support frame that supports the window frame 5. On the other hand, the auxiliary vertical members 28, 29 are disposed between the intermediate vertical members 26, 27 and the vertical frames 53, 54, and function as spacers that fill the spaces therebetween.

[0016] The shoji screen 6 comprises an outer shoji screen 6A and an inner shoji screen 6B. The outer shoji screen 6A comprises an upper frame 61, a lower frame 62, a door end frame 63, an outer joint frame (not shown), and a surface material 65. The inner shoji screen 6B, like the outer shoji screen 6A, comprises an upper frame 61, a lower frame 62, a door end frame 63, an inner joint frame 64, and a surface material 65. Each of the frames 61 to 64 comprises a frame body made of synthetic resin and a push edge made of synthetic resin. The frame body is framed by welding together the small ends cut at a 45-degree angle at each end. The surface material 65 may be a single pane of glass or a double pane of glass, but in this embodiment it is made of triple pane glass.

[0017] [First reinforcement material] As shown in Figs. 2 and 4, the first reinforcing material 7 includes a first reinforcing wood 70 and a first connecting metal fitting 71. The first reinforcing wood 70 is a piece of wood (square timber) with a rectangular cross section, and its longitudinal dimension, i.e., its dimension in the X-axis direction, is approximately the same as the width dimension of the panel frame 2. The expected dimension of the first reinforcing wood 70, i.e., its dimension in the Z-axis direction, is such that when the indoor surface of the first reinforcing wood 70 is abutted against the indoor-side mounting piece 522, the outdoor surface of the first reinforcing wood 70 approximately matches the outdoor surface of the lower frame 52. The height dimension of the first reinforcing wood 70, i.e., its dimension in the Y-axis direction, is approximately the same as the expected dimension of the first reinforcing wood 70. The expected dimension and height dimension of the first reinforcing wood 70, i.e., the dimensions in the X-axis direction and the Y-axis direction, are not limited to the same dimensions as in this embodiment, and may be set in consideration of the strength required of the first reinforcing wood 70 and dimensional restrictions during transportation of the wall panel 1.

[0018] The first connecting fittings 71 are fittings that connect both left and right ends of the first reinforcing wood 70 to the vertical members 22, 23 of the panel frame 2. As shown in Fig. 4, the first connecting fittings 71 include a side fixing portion 72, an upper surface fixing portion 73, and an exterior surface fixing portion 74. The side fixing part 72 extends downward from the side end of the top fixing part 73, and is fixed to the left and right end faces of the first reinforcing wood 70 with screws 75. The top fixing part 73 is fixed to the top face of the left and right ends of the first reinforcing wood 70 with screws 75. The exterior fixing part 74 extends upward from the interior end of the top fixing part 73, and is fixed to the exterior facing faces of the vertical members 22, 23 with screws 75 via the surface member 30. The screws 75 are half-threaded countersunk wood screws, and the first connecting fitting 71 has countersunk holes corresponding to the screws 75. The position of the first reinforcing wood 70 in the prospective direction (Z-axis direction) is further outside the room than the exterior mounting piece 521 and the fixed piece 552, that is, further outside the room than the base mounting portion 524, and is configured so that the lower frame 52 can be supported further outside the room than the exterior mounting piece 521. In this embodiment, a wooden spacer 76 is fixed with double-sided tape or the like to the upper surface of the first reinforcing wood 70. The spacer 76 is disposed on the indoor side of the holding piece 523 and abuts against the lower surface of the support piece 551, thereby preventing the holding piece 523 from abutting against the upper surface of the first reinforcing wood 70 and deforming it.

[0019] [Second reinforcement material] 2 and 4, the second reinforcing material 8 includes a second reinforcing wood 80 and a second connecting metal fitting 81. Like the first reinforcing wood 70, the second reinforcing wood 80 is a piece of wood (square timber) with a rectangular cross section, and its longitudinal dimension, i.e., its dimension in the X-axis direction, is approximately the same as the width dimension of the panel frame 2. The projected dimension of the second reinforcing wood 80, i.e., its dimension in the Z-axis direction, is approximately the same as the projected dimension of the panel frame 2, specifically, the length from the exterior surface of the surface material 30 to the interior surfaces (interior facing surfaces) of the vertical members 22, 23. The height dimension of the second reinforcing wood 80 is set so as to ensure the strength necessary to support the terrace window 4 while taking into consideration dimensional restrictions during transportation of the wall panel 1. Furthermore, the undersides of the first reinforcing wood 70 and the second reinforcing wood 80 are formed so as to be flush, that is, to be positioned on the same plane without any steps, so that the wall panel 1 can be erected by placing the undersides of the first reinforcing wood 70 and the second reinforcing wood 80 on the floor of a pallet, for example.

[0020] The second connecting fittings 81 are plate-shaped fittings that connect both left and right ends of the second reinforcing wood 80 to the vertical members 22, 23 of the panel frame 2. The indoor facing surface of the second reinforcing wood 80 is flush with the indoor facing surfaces of the vertical members 22, 23, and the second connecting fittings 81 are disposed across these indoor facing surfaces and fixed to each indoor facing surface with screws 75. Like the first connecting fittings 71, the second connecting fittings 81 are formed with countersunk holes that accommodate the screws 75. As shown in FIG. 2, the indoor side mounting piece 522 of the lower frame 52 is temporarily fixed to the second reinforcing wood 80 by a screw 59.

[0021] [Wall panel manufacturing method] The process of assembling the wall panel 1 in the factory will be described. First, the window frame 5 and screen 6 that make up the terrace window 4 are assembled in a sash manufacturing factory. This assembly method is the same as for a general terrace window 4, so a detailed explanation will be omitted. The assembled window frame 5 and screen 6 are transported to the panel frame 2 assembly factory. In the panel frame 2 assembly factory, the upper member 21, vertical members 22, 23, horizontal member 24, vertical bars 25, intermediate vertical members 26, 27, and auxiliary vertical members 28, 29 are arranged into a frame, and the surface member 30 is attached to assemble the panel frame 2. Also, in the panel frame 2 assembly factory, the first reinforcing member 7 and the second reinforcing member 8 are fixed to the panel frame 2 with screws 75, and the window frame 5 is fixed to the panel frame 2 with screws 58, 59, and the wall panel 1 is assembled. The wall panel 1 assembled in the above manner is stacked flat on a transport pallet with spacers between them, and transported to the construction site by truck or the like. The screen 6 may be assembled into the window frame 5 at the assembly factory for the panel frame 2, or it may be assembled into the window frame 5 at the construction site. Therefore, there are cases where the wall panel 1 with the screen 6 assembled therein is transported by truck or the like, and cases where the wall panel 1 and the screen 6 are transported separately by truck or the like.

[0022] [Wall panel installation method] A construction method for installing the wall panel 1 on a building will be described with reference to Figs. At the construction site, the wall panel 1 is hoisted using a crane or the like. If the wall panel 1 and the screen 6 are transported separately, the screen 6 can be assembled into the window frame 5 before hoisting the wall panel 1. Note that the screen 6 is not shown in Figures 5 to 8. 5, the lifted wall panel 1 is moved above a foundation 100 of a building. The foundation 100 is placed on a base 101, and a floor material 102 is placed on part of the upper surface of the foundation 100. 6, with the wall panel 1 suspended, the second reinforcing material 8 is removed from the panel frame 2. That is, the screws 59 that temporarily fastened the interior mounting piece 522 of the sill 52 to the second reinforcing wood 80 are removed, the screws 75 that fastened the second connecting metal fitting 81 to the vertical members 22, 23 are removed, and the second reinforcing material 8, i.e., the second reinforcing wood 80 and the second connecting metal fitting 81, are removed from the panel frame 2 to the interior side.

[0023] Next, as shown in Fig. 7, the wall panel 1 lifted by the crane is placed on the base 100. At this time, the position of the wall panel 1 in the prospective direction is determined by abutting the lower frame bracket 55 and the exterior mounting piece 521 on the exterior surface of the base 100. Therefore, the base mounting portion 524 of the lower frame 52 is placed on the upper surface of the base 100. Also, the position of the wall panel 1 in the width direction, i.e., the X-axis direction, is determined by placing the wall panel 1 between the pillars 110, as shown in Fig. 3. After positioning the panel frame 2, the indoor mounting piece 522 is fixed to the base 100 using a screw 59.

[0024] Next, as shown in Fig. 8, the first reinforcing material 7 is removed from the panel frame 2. That is, the screws 75 that attached the first connecting metal fittings 71 to the vertical members 22, 23 are removed, and the first reinforcing material 7, i.e., the first reinforcing wood 70 and the first connecting metal fittings 71, are removed from the panel frame 2 to the outside of the room. Thereafter, the lower frame bracket 55 and the exterior mounting piece 521 are fixed to the base 100 with the screws 58. Furthermore, the wall panel 1 is attached to the base 100 or the like using hold-down hardware, anchor bolts, double-sided tension bolts, etc. After that, exterior wall materials can be placed on the outdoor side of the wall panel 1, and finishing work can be performed by sealing.

[0025] [Effects of the embodiment] According to this embodiment, the first reinforcing member 7 is disposed on the exterior side of the base mounting portion 524 of the sill 52, so that the base mounting portion 524 can be mounted and fixed on the base 100 with the first reinforcing member 7 attached. Therefore, the first reinforcing member 7 can be attached to the panel frame 2 until the wall panel 1 is lifted and installed on the base 100, so that the wall panel 1 can be lifted with the paper screen 6 assembled within the window frame 5, and deformation of the wall panel 1 during lifting can be prevented. The wall panel 1 can be assembled in a factory, transported to a construction site, and attached to a building, reducing on-site work and enabling the construction of a high-quality wall surface. The first connecting fitting 71 of the first reinforcing material 7 is removably attached to the exterior facing surfaces of the left and right vertical members 22, 23, so that even when the wall panel 1 is installed between the pillars 110, the first reinforcing material 7 can be easily removed from the exterior side.

[0026] The provision of the second reinforcing member 8 in addition to the first reinforcing member 7 can further increase the strength of the sill 52. This allows the wall panel 1 to be transported from the factory where it is manufactured to the construction site with the window frame 5 and the screen 6 assembled therein. The second connecting fittings 81 are removably attached to the interior facing surfaces of the left and right vertical members 22, 23, so that even when the wall panel 1 is installed between the pillars 110 of a building, the second reinforcing member 8 can be easily removed from the interior side. The dimension in the prospective direction from the exterior surface of the first reinforcing material 7 to the interior surface of the second reinforcing material 8 is approximately the same as the dimension in the prospective direction from the exterior surface of the window frame 5 to the interior surface of the panel frame 2. Therefore, when the wall panel 1 is transported by truck or the like, the first reinforcing material 7 and the second reinforcing material 8 do not protrude from the exterior surface or the interior surface of the wall panel 1, and transportation efficiency is improved when the wall panel 1 is transported flat, for example.

[0027] [Variations] The present invention is not limited to the configurations described in the above embodiments, and modifications within the scope of the present invention that can achieve the object of the present invention are included in the present invention. For example, in the above embodiment, two reinforcing members, the first reinforcing member 7 and the second reinforcing member 8, are provided on the panel frame 2, but as shown in Fig. 9, a wall panel 1B with only the first reinforcing member 7 attached may be transported from a factory to a construction site, hoisted by a crane, and installed on the base 100. The wall panel 1B can achieve the same effects as the wall panel 1 of the above embodiment, and further, since there is no need to remove the second reinforcing member 8, the wall panel 1B can be easily installed on the base 100.

[0028] The first reinforcing material 7 and the second reinforcing material 8 are not limited to those including the first reinforcing wood 70 and the second reinforcing wood 80 made of wood and the first connecting metal fitting 71 and the second connecting metal fitting 81 made of metal. For example, a metal reinforcing material having a long frame body and a fixing plate fixed to the vertical members 22 and 23 may be used. In addition, the window frame 5 and the shoji screen 6 are not limited to those using frames and rails made of synthetic resin, but may be made of metal such as aluminum extrusions, may be composite materials of aluminum and synthetic resin, or may even use wooden frames and rails. If the lower frame is made of aluminum extrusions or the like, the lower frame bracket 55 does not need to be provided. In the first reinforcing material 7, the spacer 76 is provided on the upper surface of the first reinforcing wood 70, but if the holding piece 523 is not formed on the lower surface of the lower frame 52, the spacer 76 does not need to be provided.

[0029] The first connecting fitting 71 of the first reinforcing material 7 is not limited to the configuration of the above embodiment, and may be, for example, an L-shaped bracket having only an upper surface fixing portion 73 and an exterior surface fixing portion 74, as long as it is attachable and detachable to the vertical members 22, 23 and can connect the first reinforcing wood 70 to the vertical members 22, 23. The second connecting fitting 81 of the second reinforcing material 8 is not limited to the configuration of the above embodiment, and may, for example, be configured as a plate connecting the left and right end faces of the second reinforcing wood 80 to the sides of the vertical members 22, 23, as long as it is attachable and detachable to the vertical members 22, 23 and can connect the second reinforcing wood 80 to the vertical members 22, 23.

[0030] [summary] The wall panel of the present invention is a wall panel that constitutes the wall of a building, comprising a window frame to which a shoji screen is attached and a panel frame that supports the window frame, wherein the panel frame has left and right vertical members and an upper member connected to each of the vertical members, the window frame has left and right vertical frames and upper and lower frames connected to each of the vertical frames, the lower frame has a foundation mounting portion to be placed on the foundation of the building, and a first reinforcing member that is positioned on the outside of the foundation mounting portion and is capable of supporting the lower frame is removably attached to each of the vertical members. According to the present invention, the panel frame supporting the window frame has left and right vertical members and an upper member, but no lower member, so that it is possible to manufacture a wall panel incorporating a terrace window in which the window frame is placed directly on the foundation. Also, the first reinforcing members attached to the left and right vertical members of the panel frame are positioned on the outdoor side of the foundation placement part of the lower frame, so that the wall panel can be lifted with the first reinforcing members attached and its lower frame can be placed on the foundation of the building. Therefore, at the construction site, the wall panel can be lifted with the shoji screen incorporated in the window frame and installed on the foundation of the building, improving workability at the construction site and preventing the wall panel from being deformed when lifted.

[0031] In the wall panel of the present invention, it is preferable that the first reinforcing member includes a first connecting metal fitting that is detachably attached to the exterior facing surfaces of the left and right vertical members. According to the present invention, the first connecting fittings of the first reinforcing material are removably attached to the exterior facing surfaces of the left and right vertical members, so that the first reinforcing material can be easily removed from the exterior side even if the wall panel is installed, for example, between the pillars of a building.

[0032] In the wall panel of the present invention, it is preferable that a second reinforcing member capable of supporting the base mounting portion is detachably attached to each of the vertical members. According to the present invention, by providing a second reinforcing material in addition to the first reinforcing material, the support strength of the sill can be improved, and the wall panel can be transported from the factory to the construction site with a terrace window screen, which is heavy due to its large height, installed within the window frame.

[0033] In the wall panel of the present invention, it is preferable that the second reinforcing member includes a second connecting metal fitting that is detachably attached to the interior facing surfaces of the left and right vertical members. According to the present invention, the second connecting fittings of the second reinforcing material are removably attached to the interior facing surfaces of the left and right vertical members, so that the second reinforcing material can be easily removed from the interior side even if the wall panel is installed, for example, between the pillars of a building.

[0034] In the wall panel of the present invention, it is preferable that a lower surface of the first reinforcing material and a lower surface of the second reinforcing material are flush with each other. According to the present invention, the second reinforcement material, which is capable of supporting the base mounting portion of the lower frame, can be installed side by side on the indoor side of the first reinforcement material, and furthermore, the undersides are formed flush, i.e. on the same plane, so that the undersides of the first reinforcement material and the second reinforcement material can be placed on a pallet or truck bed, etc., to erect the wall panel, and it can be easily lifted by a crane at the construction site.

[0035] In the wall panel of the present invention, it is preferable that a shoji screen is incorporated within the window frame. According to the present invention, the wall panel with the screen installed in the window frame can be transported and lifted up to install, thereby improving the ease of construction work.

[0036] The wall panel construction method of the present invention is characterized in that it includes the steps of: lifting up a wall panel having a panel frame having left and right vertical members and an upper member connected to each of the vertical members; a window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a foundation mounting portion to be placed on the foundation of a building; a paper screen incorporated into the window frame; and a first reinforcing member that is detachably attached to the left and right vertical members and is positioned on the outside of the foundation mounting portion and capable of supporting the lower frame; and placing the foundation mounting portion of the lower frame on the foundation of a building, and then removing the first reinforcing member. According to the present invention, the first reinforcing members are detachably attached to each vertical member, so that the wall panel can be prevented from being deformed when it is transported from the factory to the construction site and then lifted by a crane or the like at the construction site. Also, since the first reinforcing member is disposed on the exterior side of the foundation mounting portion of the sill, the wall panel can be lifted with the first reinforcing member attached and the sill can be placed on the foundation of the building, and the wall panel can be lifted with the shoji screen installed in the window frame and installed on the foundation of the building. This improves workability at the construction site.

[0037] The method for constructing a wall panel of the present invention is characterized in that it includes the steps of: lifting up a wall panel having a panel frame having left and right vertical members and an upper member connected to each of the vertical members; a window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a base mounting portion to be placed on the foundation of a building; a paper screen incorporated into the window frame; a first reinforcing member that is detachably attached to the left and right vertical members and is positioned on the outside of the base mounting portion and capable of supporting the lower frame; and a second reinforcing member that is detachably attached to the left and right vertical members and is capable of supporting the base mounting portion; removing the second reinforcing member from the left and right vertical members, and then placing the base mounting portion of the lower frame on the foundation of a building, and then removing the first reinforcing member. According to the present invention, since the second reinforcing member is provided in addition to the first reinforcing member, the support strength of the sill can be improved, and the wall panel can be transported from the factory to the construction site with a terrace window screen, which is heavy due to its large height, installed in the window frame. In addition, since the second reinforcing member is removed while the wall panel is lifted, and the first reinforcing member is maintained in the installed state, the wall panel can be prevented from being deformed when the wall panel is lifted by a crane or the like. In addition, since the first reinforcing member is disposed on the exterior side of the base mounting portion of the base, when the second reinforcing member is removed, the wall panel can be lifted with the first reinforcing member installed and the base frame can be placed on the base of the building, and the wall panel can be lifted with the screen installed in the window frame and installed on the base of the building. This improves workability at the construction site. [Explanation of symbols]

[0038] 1...wall panel, 1B...wall panel, 2...panel frame, 4...terrace window, 5...window frame, 6...paper screen, 6A...outer paper screen, 6B...inner paper screen, 7...first reinforcing material, 8...second reinforcing material, 21...upper material, 22...vertical material, 23...vertical material, 24...horizontal material, 25...vertical bar, 26...middle vertical material, 27...middle vertical material, 28...auxiliary vertical material, 29...auxiliary vertical material, 30...surface material, 51...upper frame, 52...lower frame, 53...vertical frame, 54...vertical frame, 55...lower frame bracket, 70...first reinforcing wood, 71...first connecting fitting, 75...screw, 76...spacer, 80...second reinforcing wood, 81...second connecting fitting, 100...base, 101...foundation, 102...floor material, 110...pillar, 524...base mounting portion.

Claims

1. A wall panel that constitutes a wall surface of a building and has a window frame to which a shoji screen is attached and a panel frame that supports the window frame, The panel frame has left and right vertical members and an upper member connected to each of the vertical members, The window frame has left and right vertical frames, and an upper frame and a lower frame connected to each of the vertical frames, The lower frame has a foundation mounting portion to be placed on the foundation of a building, A first reinforcing member that is arranged on the outdoor side of the base placement portion and can support the lower frame is detachably attached to each of the vertical members. A wall panel characterized by:

2. 2. The wall panel according to claim 1, The first reinforcing member includes a first connecting metal fitting that is detachably attached to the exterior facing surfaces of the left and right vertical members. A wall panel characterized by:

3. 2. The wall panel according to claim 1, A second reinforcing member capable of supporting the base placement portion is removably attached to each of the vertical members. A wall panel characterized by:

4. 4. The wall panel according to claim 3, The second reinforcing member includes a second connecting metal fitting that is detachably attached to the interior facing surfaces of the left and right vertical members. A wall panel characterized by:

5. 4. The wall panel according to claim 3, The lower surface of the first reinforcing material and the lower surface of the second reinforcing material are flush with each other. A wall panel characterized by:

6. 2. The wall panel according to claim 1, A shoji screen is installed in the window frame. A wall panel characterized by:

7. A panel frame having left and right vertical members and an upper member connected to each of the vertical members; A window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a base placement portion to be placed on the foundation of a building; A shoji screen incorporated in the window frame; A wall panel having a first reinforcing member that is detachably attached to the left and right vertical members and is disposed on the outdoor side of the base placement portion and capable of supporting the lower frame is lifted up; After the foundation placement portion of the lower frame is placed on the foundation of the building, the first reinforcing member is removed. A method for constructing a wall panel comprising the steps of:

8. A panel frame having left and right vertical members and an upper member connected to each of the vertical members; A window frame having left and right vertical frames, an upper frame connected to each of the vertical frames, and a lower frame connected to each of the vertical frames and having a base placement portion to be placed on the foundation of a building; A shoji screen incorporated in the window frame; A first reinforcing member that is detachably attached to the left and right vertical members and is arranged on the outdoor side of the base mounting portion and capable of supporting the lower frame; and a second reinforcing member that is detachably attached to the left and right vertical members and capable of supporting the base placement portion. After removing the second reinforcing member from the left and right vertical members, the foundation placement portion of the lower frame is placed on the foundation of the building, and then the first reinforcing member is removed. A method for constructing a wall panel comprising the steps of:

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