Waterproofing structure and construction method for wall panels

Abstract

To provide a waterproof structure and construction method for wall panels that can ensure waterproof performance in the sliding window area and improve workability during construction. [Solution] This is a waterproof structure for a wall panel 1 that forms a wall surface, installed in an opening partitioned by the foundation 100 and columns of a building, and having a window frame 5 for a sliding window and a panel frame 2 that supports the window frame 5. The panel frame 2 has left and right vertical members 23, an upper member 21 connected to each vertical member 23, and a surface member 65 attached to the exterior surface of each vertical member 23. The window frame 5 has left and right vertical frames and an upper frame 51 and a lower frame 52 connected to each vertical frame. A foundation-side waterproof member 140 is attached to the foundation 100 on which the panel frame 2 is placed and the lower frame 52 is supported. Corner-side waterproof members 40 are attached to the lower ends of the left and right vertical members of the wall panel 1, and are placed on top of the foundation-side waterproof member 140.

Description

Technical Field

[0001] The present invention relates to a waterproof structure and a construction method for a wall panel constituting a wall surface of a building.

Background Art

[0002] Patent Document 1 discloses a wall body used for a building with a panel method. This wall body includes a wall main body provided with a rectangular opening for attaching a window, and a waterproof sheet attached to the lower part of the opening. The wall main body is formed in a rectangular shape by arranging left and right wall panels apart from each other, arranging a small wall panel between the upper end portions of these wall panels, and arranging a waist wall panel between the lower end portions, and has an opening. The waterproof sheet includes a rectangular sheet-shaped sheet main body pasted on the surface of the wall main body, more specifically, along the lower part of the opening on the surface of the waist wall panel, and two corner waterstop portions attached to the corner portions on both sides of the lower part of the opening.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, for a window, there is a flush window that directly attaches the lower frame of the window frame to the building frame. When constructing the wall main body with this flush window attached, it is necessary to use a portal-shaped panel without a waist wall panel. Therefore, a waterproof structure in which a waterproof sheet is attached to the waist wall panel as in Patent Document 1 cannot be adopted. Therefore, it is necessary to install a portal-shaped wall panel at the construction site, attach a waterproof sheet to the building foundation and the wall panel, and then attach the flush window to the opening of the wall panel. Therefore, at the building construction site, it is necessary to carry out the work of hanging wall panels, installing waterproof sheets, and installing and hanging sliding windows separately, which presents a challenge in terms of reduced work efficiency.

[0005] The object of the present invention is to provide a waterproof structure and construction method for a wall panel that can ensure waterproof performance of the sliding window portion and improve workability during construction. [Means for solving the problem]

[0006] The waterproof wall panel structure of the present invention comprises a window frame for a sliding window and a panel frame that supports the window frame, and is installed in an opening partitioned by the foundation and columns of a building to form a wall surface, wherein the panel frame comprises left and right vertical members, an upper member connected to each of the vertical members, and a surface member attached to the exterior surface of each of the vertical members, and the window frame comprises 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 that is placed on the foundation, and a foundation-side waterproof member is attached to the foundation, and a corner-side waterproof member is attached to the lower end of each of the vertical members, which is placed on the foundation-side waterproof member.

[0007] The present invention provides a method for constructing a wall panel, comprising the steps of: assembling 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 that is placed on the base of the building; and corner-side waterproofing members attached to the exterior side of the lower ends of each of the vertical members; attaching the base-side waterproofing members to the base; lifting the wall panel and placing the base mounting portion on the upper surface of the base-side waterproofing member, and overlapping the corner-side waterproofing members on the base-side waterproofing member. [Effects of the Invention]

[0008] The present invention aims to provide a waterproof structure and construction method for a wall panel that can ensure waterproof performance of the sliding window portion and improve construction workability. [Brief explanation of the drawing]

[0009] [Figure 1] This is an external view showing the installed state of a wall panel according to an embodiment of the present invention. [Figure 2] This is a longitudinal cross-sectional view showing the installation state of the wall panel of the above embodiment. [Figure 3] This is a cross-sectional view showing the installation state of the wall panel in the above embodiment. [Figure 4] This is an external view showing the wall panel of the above embodiment. [Figure 5] This is an interior view showing the wall panel of the above embodiment. [Figure 6] This is a perspective view showing the main parts of the wall panel and reinforcing material of the above embodiment. [Figure 7] This is a perspective view showing the corner-side waterproofing member of the above embodiment. [Figure 8] This is a perspective view showing the waterproofing member on the base side of the above embodiment. [Figure 9] This diagram shows the installation procedure for the wall panel of the above embodiment. [Figure 10] This diagram shows the installation procedure for the wall panel of the above embodiment. [Figure 11] This diagram shows the installation procedure for the wall panel of the above embodiment. [Figure 12] This diagram shows the installation procedure for the wall panel of the above embodiment. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings. Figures 1 to 3 show the wall panel 1 of this embodiment installed on the building frame 10. The body 10 is a general body including a foundation 101, a base 100 fixed to the upper surface of the foundation 101 via mortar 105, columns 110 erected on the base 100, and a beam 120 fixed to the upper ends of the columns 110, so the description thereof is omitted. As shown in FIGS. 1 to 3, the wall panel 1 of the present embodiment is a structure attached to an opening partitioned by the base 100, the columns 110, and the beam 120 of the body 10, and includes a panel frame 2 and a terrace window (sweeping window) 4. As will be described later, the terrace window 4 includes a window frame 5 and a shoji 6. Note that FIG. 1 is an external view of the wall panel 1 installed in the opening of the body 10 as seen from the outdoor side, and FIGS. 2 and 3 are longitudinal sectional views and transverse sectional views of the wall panel 1 installed in the opening of the body 10. In each of the sectional views of FIGS. 2 and 3, the hatching showing the cross sections of the window frame 5 and the shoji 6 is omitted. Also, the beam 120 is omitted in FIG. 2. 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 prospective direction (indoors - outdoors 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.

[0011] [Wall panel] Next, the structure of the wall panel 1 will be described with reference to FIGS. 4 to 7 in addition to FIGS. 1 to 3. Note that FIGS. 4 to 7 illustrate the wall panel 1 in a state assembled at the factory and transported to the construction site of the building. The wall panel 1 includes a panel frame 2, a terrace window 4, first reinforcing members 7 and second reinforcing members 8 which are reinforcing materials during transportation, and a corner - side waterproof member 40. Note that FIG. 4 is an external view of the wall panel 1, FIG. 5 is an internal view of the wall panel 1, FIG. 6 is a perspective view showing the lower - side corner portion of the wall panel 1, and FIG. 7 is a perspective view showing the corner - side waterproof member 40.

[0012] [Panel frame] As shown in FIG. 5, the panel frame 2 includes an upper member 21, vertical members 22, 23, a horizontal member 24, and vertical cross - members 25 made of wood (solid wood), and is configured in a portal shape. Further, a surface material 30 is attached to the outdoor surface. The vertical members 22 and 23 have their upper ends in contact with the lower surfaces 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 in a horizontal-over-vertical manner. The horizontal member 24 is spanned between the vertical members 22 and 23, and the vertical cross member 25 is spanned between the upper member 21 and the horizontal member 24. The surface material 30 is made of particle board and is attached to the outdoor surfaces of the vertical members 22 and 23 and the outdoor surface between the upper member 21 and the horizontal member 24 with an adhesive or the like. Therefore, the surface material 30 is provided in a portal shape as a whole.

[0013] [Terrace window] The terrace window 4 is disposed in an opening partitioned by a panel frame 2 formed in a portal shape and a first reinforcing member 7 and a second reinforcing member 8 attached to the panel frame 2. The terrace window 4 is a sliding window having a window frame 5 and a shoji 6, and is a sweeping window with its lower end portion at the floor level of the building. The window frame 5 is configured by framing an upper frame 51, a lower frame 52, and left and right vertical frames 53 and 54. The window frame 5 of this embodiment is made of synthetic resin, and the ends of each frame 51 - 54 are cut at an angle of 45 degrees, and the cut ends are welded together to form the frame. As shown in FIGS. 2 and 3, each of the frames 51 - 54 includes outdoor side mounting pieces 511, 521, 531, 541 that protrude to the outer peripheral side of the window frame 5 and indoor side mounting pieces 512, 522, 532, 542 that protrude to the indoor side of the window frame 5. As shown in FIG. 2, on the lower surface of the lower frame 52, a holding piece 523 having a substantially L-shaped cross section for holding the outdoor side end portion of the lower frame bracket 55 that reinforces the lower frame 52 is formed. Also, the lower surface of the lower frame 52 on the indoor side of the outdoor side mounting piece 521 is a base placement portion 524 that is placed on a base 100 as will be described later.

[0014] The lower frame bracket 55 comprises a support piece 551 positioned 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. The support piece 551 has a groove that opens to the upper surface, and a sealing material is attached to this groove to contact the lower surface of the lower frame 52 and seal the space between the lower frame bracket 55 and the lower frame 52 to enhance watertightness. The lower frame bracket 55 is attached to the lower frame 52 by bonding the upper surface of the support piece 551 to the lower surface of the lower frame 52 with double-sided tape. In addition, 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 outdoor mounting pieces 511, 531, and 541 of the upper frame 51 and vertical frames 53 and 54 are fixed to the outdoor facing surfaces of the horizontal members 24 and vertical members 22 and 23 via the surface material 30 with screws 58. Thus, the horizontal members 24 and vertical members 22 and 23 function as support frames that support the window frame 5.

[0016] The shoji screen 6 comprises an outer shoji screen 6A and an inner shoji screen 6B. The outer shoji screen 6A is composed of an upper frame 61, a lower frame 62, a door edge frame 63, an outer meeting frame 64, and a facing material 65. The inner shoji screen 6B is composed similarly to the outer shoji screen 6A, comprising an upper frame 61, a lower frame 62, a door edge frame 63, an inner meeting frame 66, and a facing material 65. Each frame 61-64 is composed of a frame body made of synthetic resin and a trim made of synthetic resin. The frame body is framed by welding together the ends of each frame, which are cut at a 45-degree angle. The facing material 65 may be a single pane of glass or double-glazed glass, but in this embodiment it is composed of triple-glazed glass.

[0017] [First reinforcing material] As shown in Figures 4 and 6, the first reinforcing member 7 comprises a first reinforcing timber 70 and a first connecting fitting 71. The first reinforcing timber 70 is a piece of timber (square timber) with a rectangular cross-section, and its longitudinal dimension, i.e., the dimension in the X-axis direction, is approximately the same as the width dimension of the panel frame 2. The depth dimension of the first reinforcing timber 70, i.e., the dimension in the Z-axis direction, is such that when the interior surface of the first reinforcing timber 70 is in contact with the interior mounting piece 522, the exterior surface of the first reinforcing timber 70 approximately coincides with the exterior surface of the lower frame 52. The height dimension of the first reinforcing timber 70, i.e., the dimension in the Y-axis direction, is approximately the same as the depth dimension of the first reinforcing timber 70. Note that the depth dimension and height dimension of the first reinforcing timber 70, i.e., the dimensions in the X-axis and Y-axis directions, are not limited to the same dimensions as in this embodiment, but should be set considering the required strength of the first reinforcing timber 70 and dimensional constraints during transportation of the wall panel 1. Furthermore, the left and right ends 701 of the first reinforcing timber 70 have their lower halves cut out, so that their height is approximately half that of the central part.

[0018] The first connecting fitting 71 is a fitting that connects the left and right ends 701 of the first reinforcing wood 70 to the surface material 30 and vertical members 22 and 23 of the panel frame 2, respectively. As shown in Figure 6, the first connecting fitting 71 includes a side fixing part 72 and an exterior fixing part 73. The side fixing portion 72 is formed in a roughly U-shape in cross-section and is positioned along the end face of the end portion 701, as well as the upper and lower surfaces of the end portion 701, and is fixed to the left and right end faces of the first reinforcing wood 70 with screws 75. The exterior fixing portion 73 extends upward from the side fixing portion 72 and is fixed to the exterior facing surfaces of the vertical members 22 and 23 via the surface material 30 with screws 75. The position of the first reinforcing timber 70 in the depth direction (Z-axis direction) is set to be further outward than the outdoor mounting piece 521 and the fixing piece 552, that is, further outward than the base mounting portion 524, so that the lower frame 52 can be supported further outward than the outdoor mounting piece 521. In this embodiment, a wooden plate-shaped spacer 76 is fixed to the upper surface of the first reinforcing wood 70 with double-sided tape or the like. The spacer 76 is positioned on the interior side of the retaining piece 523, and the spacer 76 abuts against the lower surface of the support piece 551, thereby preventing the retaining piece 523 from abutting against the upper surface of the first reinforcing wood 70 and deforming.

[0019] [Second reinforcing material] As shown in Figures 4 to 6, the second reinforcing member 8 comprises a second reinforcing timber 80 and a second connecting fitting 81. The second reinforcing timber 80, like the first reinforcing timber 70, is a piece of timber (square timber) with a rectangular cross-section, and its longitudinal dimension, i.e., the dimension in the X-axis direction, is approximately the same as the width dimension of the panel frame 2. Furthermore, the depth dimension of the second reinforcing timber 80, i.e., the dimension in the Z-axis direction, is approximately the same as the depth dimension of the panel frame 2, specifically, the length dimension from the exterior surface of the surface material 30 to the interior surface (interior facing surface) of the vertical members 22 and 23. The height dimension of the second reinforcing timber 80 is set to ensure sufficient strength to support the terrace window 4, while also taking into consideration dimensional limitations during the transport of the wall panel 1. Furthermore, since the undersides of the first reinforcing timber 70 and the second reinforcing timber 80 are formed flush, meaning they are on the same plane without any steps, the wall panel 1 can be erected by placing the undersides of the first reinforcing timber 70 and the second reinforcing timber 80 on the floor of a pallet or the like.

[0020] The second connecting fitting 81 is a plate-shaped fitting that connects the left and right ends of the second reinforcing wood 80 to the vertical members 22 and 23 of the panel frame 2. The indoor-facing surface of the second reinforcing wood 80 and the indoor-facing surfaces of the vertical members 22 and 23 are flush, and the second connecting fitting 81 is positioned across these indoor-facing surfaces and fixed to each indoor-facing surface with screws 75. Also, as shown in Figure 9, the indoor-facing mounting piece 522 of the lower frame 52 is temporarily fixed to the second reinforcing wood 80 with screws 59.

[0021] [Corner waterproofing material] The corner waterproofing member 40 is made of a waterproofing plate made of a thermoplastic resin such as polyethylene or polypropylene, or a flexible synthetic resin such as a thermoplastic resin-based elastomer or synthetic rubber. The thickness of the corner waterproofing member 40 is approximately 1.0 mm or less, and it is designed to be bendable. As shown in Figure 7, the corner-side waterproofing member 40 includes a vertical member covering portion 41 positioned on the exterior surface of the lower ends of the vertical members 22 and 23 and covering the surface material 30 attached to the vertical members 22 and 23; a side covering portion 42 positioned between the interior surfaces of the vertical members 22 and 23 and the window frame 5; an upper covering portion 43 positioned on the upper surface of the base-side waterproofing member; and a base covering portion 44 extending downward from the vertical member covering portion 41 and the upper covering portion 43 and positioned on the exterior side of the base 100. An upwardly extending rising portion 431 is formed at the interior end of the upper covering portion 43. The corner-side waterproofing member 40 is attached to the vertical members 22 and 23 with double-sided tape or adhesive.

[0022] [Wall panel manufacturing method] The process of assembling wall panels 1 in the factory will now be explained. First, the window frames 5 and sashes 6 that make up the terrace window 4 are assembled in the sash manufacturing plant. This assembly method is the same as that of a typical terrace window 4, so the explanation will be omitted. The assembled window frames 5 and sashes 6 are then transported to the panel frame 2 assembly plant. In the assembly plant for panel frame 2, the top member 21, vertical members 22 and 23, horizontal members 24, and vertical battens 25 are framed, and the surface material 30 is attached to assemble the panel frame 2. Also in the assembly plant for panel frame 2, the second reinforcing member 8 is fixed to the panel frame 2 with screws 75, the corner waterproof members 40 are attached to the vertical members 22 and 23, and the window frame 5 is fixed to the panel frame 2 with screws 58 and 59. Finally, the first reinforcing member 7 is fixed to the panel frame 2 with screws 75 to assemble the wall panel 1. The base covering portion 44 of the corner waterproof member 40 is bent towards the bottom side of the end portion 701 of the first reinforcing wood 70 and temporarily fixed to the first reinforcing wood 70 with adhesive tape 45. The assembled wall panels 1 are stacked vertically on transport pallets and transported to the construction site by truck or other means. The shoji screens 6 may be installed inside the window frames 5 at the assembly plant where the panel frames 2 are assembled, or they may be installed inside the window frames 5 at the construction site. Therefore, the wall panels 1 with the shoji screens 6 installed may be transported by truck or other means, or the wall panels 1 and shoji screens 6 may be transported separately by truck or other means.

[0023] [Wall panel installation method] The construction method for installing wall panel 1 on the building will be explained with reference to Figures 8 to 12. At the construction site, as shown in Figure 8, the base-side waterproofing member 140 is attached to the base 100 using double-sided waterproofing tape (double-sided butyl tape). The base-side waterproofing member 140 is made of a flexible synthetic resin material, similar to the corner-side waterproofing member 40, and comprises an upper surface portion 141 that covers the upper surface of the base 100 between the columns 110, and a surface portion 142 that extends downward from the upper surface portion 141 and covers the outer surface of the base 100. An upwardly extending rising portion 143 is formed at the indoor end of the upper surface portion 141. A pair of waterproofing materials 150 are attached to the upper surface 141. The waterproofing materials 150 are positioned so as to overlap with the corner-side waterproofing member 40 in a plan view. A spacer may be placed between the pair of waterproofing materials 150 to fill the gap between the lower frame 52 and the base-side waterproofing member 140.

[0024] Next, the wall panel 1 is lifted using a crane or similar equipment. If the wall panel 1 and the shoji screen 6 were transported separately, the shoji screen 6 may be assembled into the window frame 5 before lifting the wall panel 1, or the shoji screen 6 may be assembled into the window frame 5 of the wall panel 1 after the wall panel 1 has been installed in the building. Note that the shoji screen 6 is not shown in Figures 9 to 12. As shown in Figure 9, the suspended wall panel 1 is moved above the base 100 to which the base-side waterproofing member 140 is attached. Note that flooring material 102 (see Figure 2) may be placed on a portion of the upper surface of the base 100. Next, as shown in Figure 10, with the wall panel 1 suspended, the second reinforcing member 8 is removed from the panel frame 2. Specifically, the screws 59 that were temporarily fastening the indoor mounting piece 522 of the lower frame 52 to the second reinforcing wood 80 are removed, and the screws 75 that were fastening the second connecting fitting 81 to the vertical members 22 and 23 are removed, thereby removing the second reinforcing member 8, that is, the second reinforcing wood 80 and the second connecting fitting 81, from the panel frame 2 to the indoor side. Furthermore, the adhesive tape 45 that was temporarily fixing the corner waterproofing member 40 to the first reinforcing wood 70 is removed, and the base covering portion 44 of the corner waterproofing member 40 is positioned to hang downwards.

[0025] Next, as shown in Figure 11, the wall panel 1, which has been lifted by the crane, is placed on the base 100. At this time, the position of the wall panel 1 in the depth direction is determined by bringing the lower frame bracket 55 and the outdoor mounting piece 521 into contact with the outdoor surface of the base 100. As a result, the base mounting portion 524 of the lower frame 52 is placed on the upper surface of the base 100. The position of the wall panel 1 in the width direction, that is, in the X-axis direction, is determined by arranging the wall panel 1 between the columns 110, as shown in Figure 3. If the position of the wall panel 1 in the depth direction is shifted outwards when it is placed on the base 100, a metal plate is placed on the indoor surface of the columns 110 and vertical members 22 and 23, and pulling screws are screwed into the columns 110 and vertical members 22 and 23 through holes formed in the plate, thereby pulling the wall panel 1 inwards and adjusting its position. After positioning the wall panel 1, the indoor mounting piece 522 is fixed to the base 100 using screws 59. Furthermore, the upper covering portion 43 of the corner-side waterproofing member 40 overlaps with the upper portion 141 and the water-stopping material 150 of the base-side waterproofing member 140, and the base covering portion 44 overlaps with the surface portion 142. As a result, the corner-side waterproofing member 40 and the base-side waterproofing member 140 are connected, ensuring a water-stopping line. In addition, the corner-side waterproofing member 40 and the base-side waterproofing member 140 are pressed together by the load of the shoji screen 6, so a water-stopping line is ensured simply by overlapping them. However, the water-stopping effect may be further improved by placing double-sided butyl tape or adhesive between the corner-side waterproofing member 40 and the base-side waterproofing member 140, or between the corner-side waterproofing member 40 and the water-stopping material 150 to further enhance adhesion.

[0026] Next, as shown in Figure 12, the first reinforcing member 7 is removed from the panel frame 2. That is, the screws 75 that attached the first connecting fitting 71 to the vertical members 22 and 23 are removed, and the first reinforcing member 7, i.e., the first reinforcing wood 70 and the first connecting fitting 71, are removed from the panel frame 2 to the outside. Next, the lower frame bracket 55 and the outdoor mounting piece 521 are fixed to the base 100 with screws 58. Furthermore, the wall panel 1 is attached to the base 100 using hold-down hardware, anchor bolts, double-ended bolts, etc. Furthermore, as shown in Figure 1, a single-sided butyl tape 160 is applied to the overlapping portion between the base covering portion 44 of the corner-side waterproofing member 40 and the surface portion 142 of the base-side waterproofing member 140 to enhance waterproofing. After that, the exterior wall material can be placed on the exterior side of the wall panel 1, and the finishing work can be completed by performing sealing work.

[0027] [Effects of the Embodiment] According to this embodiment, since the base-side waterproofing member 140 is attached to the base 100 and the corner-side waterproofing member 40 is attached to the lower ends of the vertical members 22 and 23 of the wall panel 1, by placing the wall panel 1 on the base 100, the corner-side waterproofing member 40 is connected to the base-side waterproofing member 140 to secure a watertight line and ensure the waterproofing performance of the patio window 4, which is a sliding window. Furthermore, since the corner-side waterproofing member 40 is attached to the wall panel 1 in advance at the factory, at the building construction site, a watertight line can be formed simply by attaching the wall panel 1 with the patio window 4 incorporated into it to the opening in the building structure 10. For this reason, compared to conventional technology in which the hanging of the wall panel, the installation of the waterproofing member, and the hanging of the patio window 4 are performed separately, the workability of construction can be improved.

[0028] Since the corner-side waterproofing member 40 has an upper covering portion 43 and a base covering portion 44, the upper covering portion 43 and the base covering portion 44 can be superimposed on the base-side waterproofing member 140 attached to the base 100, thereby improving waterproofing performance. In addition, the vertical member covering portion 41 and the side covering portion 42 of the corner-side waterproofing member 40 extend upward from the upper covering portion 43 and the base covering portion 44 and cover the inner surfaces of the surface material 30 and the vertical members 22 and 23, thereby enhancing waterproofing performance.

[0029] Since the base-side waterproofing member 140 has an upper surface portion 141 and an outer surface portion 142, the upper and outer surfaces of the base 100 between the columns 110 can be covered with the base-side waterproofing member 140, thereby improving waterproofing performance. The base-side waterproofing member 140 only needs to be placed along the upper and outer surfaces of the base 100 before the wall panel 1 is installed, and can be attached to the base 100 with simple work using double-sided tape or the like, thus improving workability during construction.

[0030] Since a water-stopping material 150 is placed between the base-side waterproofing member 140 and the corner-side waterproofing member 40, even if rainwater or the like penetrates between the base-side waterproofing member 140 and the lower frame 52 of the terrace window 4, the water-stopping material 150 can prevent it from penetrating into the corner-side waterproofing member 40, thereby improving waterproofing performance. Since the upper covering portion 43 of the corner-side waterproofing member 40 forms a rising portion 431, and the surface portion 142 of the base-side waterproofing member 140 also forms a rising portion 143, even if rainwater penetrates the surface side of the upper covering portion 43 or the surface portion 142, it can be blocked by the rising portions 431 and 143, thereby reliably preventing water leakage into the interior.

[0031] The end 701 of the first reinforcing wood 70 is notched, and the base covering portion 44 of the corner-side waterproofing member 40 is wrapped around this end 701 and temporarily secured with adhesive tape 45, thereby preventing deformation or damage to the corner-side waterproofing member 40 during transportation or lifting of the wall panel 1.

[0032] Since the first reinforcing member 7 is positioned on the exterior side of the base mounting portion 524 of the lower frame 52, the base mounting portion 524 can be placed on the base 100 and fixed 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 the wall panel 1 can be lifted with the sash 6 assembled inside the window frame 5, and deformation of the wall panel 1 during lifting can be prevented. Since wall panel 1 can be assembled in the factory, transported to the construction site, and installed in the building, on-site work can be reduced, and a high-quality wall surface can be constructed. Since the first connecting fitting 71 of the first reinforcing member 7 is detachably attached to the exterior-facing surfaces of the left and right vertical members 22 and 23, the first reinforcing member 7 can be easily removed from the exterior even when the wall panel 1 is installed between the columns 110.

[0033] In addition to the first reinforcing member 7, the second reinforcing member 8 is provided, which further increases the strength of the lower frame 52. As a result, the wall panel 1 can be transported from the factory where it was manufactured to the construction site with the window frame 5 and the sash 6 already assembled. Furthermore, since the second reinforcing wood 80 can also support the upper covering portion 43 of the corner-side waterproofing member 40, deformation of the corner-side waterproofing member 40 during the transport of the wall panel 1 can be prevented more reliably. Since the second connecting fitting 81 is detachably attached to the interior-facing surfaces of the left and right vertical members 22 and 23, the second reinforcing member 8 can be easily removed from the interior even when the wall panel 1 is installed between the columns 110 of the building. The dimension in the depth direction from the exterior surface of the first reinforcing member 7 to the interior surface of the second reinforcing member 8 is approximately the same as the dimension in the depth direction from the exterior surface of the window frame 5 to the interior surface of the panel frame 2. Therefore, when transporting the wall panel 1 by truck or the like, the first reinforcing member 7 and the second reinforcing member 8 do not protrude from the exterior or interior surface of the wall panel 1, and the transportation efficiency when transporting the wall panel 1 on a flat surface can also be improved.

[0034] [Differentiation] The present invention is not limited to the configurations described in the embodiments above, and any modifications that can achieve the objectives of the present invention are included in the present invention. For example, in the above embodiment, the panel frame 2 was provided with two reinforcing members, a first reinforcing member 7 and a second reinforcing member 8. However, a wall panel with only the first reinforcing member 7 attached may be transported from the factory to the construction site and lifted by a crane to be installed on the base 100. In this case, the same effects as the wall panel 1 of the above embodiment can be achieved, and furthermore, since there is no need to remove the second reinforcing member 8, the work of installing the wall panel on the base 100 can be made easier. If the second reinforcing member 8 is not provided, the upper covering portion 43 of the corner-side waterproof member 40 cannot be supported by the second reinforcing member 8 during the transport of the wall panel, so it can be temporarily fixed to the lower surface of the lower frame 52 with adhesive tape.

[0035] In the above embodiment, a water-stopping material 150 or spacer was placed between the base-side waterproofing member 140 and the corner-side waterproofing member 40, but it is not necessary to provide these water-stopping materials 150 or spacers. Alternatively, the base-side waterproofing member 140 and the corner-side waterproofing member 40 may be bonded together with double-sided butyl tape or adhesive. The specific structure of the corner-side waterproofing member 40 and the base-side waterproofing member 140 is not limited to the above embodiment. For example, a structure without rising sections 431 and 143 is also acceptable.

[0036] The window frame 5 and sash 6 are not limited to those made of synthetic resin; they may be made of metal such as aluminum extruded profiles, or composite profiles of aluminum and synthetic resin, or even wooden frames and profiles. If the lower frame is made of aluminum extruded profiles or the like, the lower frame bracket 55 does not need to be provided.

[0037] [summary] The waterproof wall panel structure of the present invention comprises a window frame for a sliding window and a panel frame that supports the window frame, and is installed in an opening partitioned by the foundation and columns of a building to form a wall surface, wherein the panel frame comprises left and right vertical members, an upper member connected to each of the vertical members, and a surface member attached to the exterior surface of each of the vertical members, and the window frame comprises 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 that is placed on the foundation, and a foundation-side waterproof member is attached to the foundation, and a corner-side waterproof member is attached to the lower end of each of the vertical members, which is placed on the foundation-side waterproof member. According to the present invention, since corner-side waterproofing members are attached to the lower ends of the left and right vertical members of the wall panel, after attaching the foundation-side waterproofing member to the building's foundation, the wall panel with the corner-side waterproofing member attached is attached to the opening in the building structure, and the corner-side waterproofing member is placed on top of the building structure-side waterproofing member to form a watertight line. Therefore, compared to the case where a sliding window is installed after waterproofing treatment at the construction site, the waterproofing performance of the sliding window portion can be ensured, and the workability of the construction can be improved.

[0038] In the waterproof wall panel structure of the present invention, the corner-side waterproof member preferably comprises a vertical member covering portion disposed on the outdoor side of the lower end of the vertical member, a side covering portion disposed between the inner surface of the vertical member and the window frame, an upper covering portion disposed on the upper surface of the base-side waterproof member, and a base covering portion extending downward from the vertical member covering portion and the upper covering portion and disposed on the outdoor side of the base. According to the present invention, the corner-side waterproofing member includes an upper surface covering portion and a base covering portion that are positioned on the upper surface and exterior side of the base. Therefore, the upper surface covering portion and the base covering portion can be superimposed on the base-side waterproofing member attached to the base, thereby improving waterproofing performance. Furthermore, the vertical member covering portion and the side covering portion of the corner-side waterproofing member extend upward from the upper surface covering portion and the base covering portion, covering the surface material attached to the vertical member and the inner surface of the vertical member, thus enhancing waterproofing performance.

[0039] In the waterproof wall panel structure of the present invention, it is preferable that the base-side waterproof member comprises an upper portion that covers the upper surface of the base between the columns, and a surface portion that extends downward from the upper portion and covers the outer surface of the base. According to the present invention, since the base-side waterproofing member has an upper surface portion and an outer surface portion, the upper surface and outer surface of the base between columns can be covered with the base-side waterproofing member, thereby improving waterproofing performance. Furthermore, the base-side waterproofing member only needs to be positioned along the upper surface and outer surface of the base before the wall panel is installed, and can be attached to the base with simple work using double-sided tape or the like, thus improving workability during construction.

[0040] In the waterproof wall panel structure of the present invention, a water-stopping material may be placed between the base-side waterproof member and the corner-side waterproof member. According to the present invention, since a water-stopping material is placed between the base-side waterproofing member and the corner-side waterproofing member, if rainwater or the like penetrates between the base-side waterproofing member and the lower frame of the sliding window, the water-stopping material can prevent penetration to the corner-side waterproofing member, that is, to the joint between the base and the vertical frame or column, thereby improving waterproofing performance.

[0041] The present invention provides a method for constructing a wall panel, comprising the steps of: assembling 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 that is placed on the base of the building; and corner-side waterproofing members attached to the exterior side of the lower ends of each of the vertical members; attaching the base-side waterproofing members to the base; lifting the wall panel and placing the base mounting portion on the upper surface of the base-side waterproofing member, and overlapping the corner-side waterproofing members on the base-side waterproofing member. According to the present invention, after attaching the foundation-side waterproofing member to the building's foundation, the wall panel with the corner-side waterproofing member attached is installed in the opening of the building structure, and the corner-side waterproofing member is superimposed on the building structure-side waterproofing member, thus easily forming a watertight line. For this reason, compared to the case where a sliding window is installed after waterproofing treatment at the construction site, the waterproofing performance of the sliding window portion can be ensured, and the workability of the construction can be improved.

[0042] In the method for constructing a wall panel of the present invention, it is preferable that the wall panel is detachably fitted to each of the vertical members, and that a first reinforcing member positioned on the exterior side of the base mounting portion and capable of supporting the lower frame, and a second reinforcing member capable of supporting the base mounting portion, and that after lifting the wall panel and removing the second reinforcing member from each of the vertical members, the base mounting portion is placed on the upper surface of the base-side waterproofing member, the corner-side waterproofing member is placed on top of the base-side waterproofing member, and then the first reinforcing member is removed. According to the present invention, by providing a first reinforcing member and a second reinforcing member, the support strength of the lower frame can be improved, and wall panels can be transported from the factory to the construction site with the shoji screens for terrace windows, which are heavy due to their large height, already assembled within the window frame. Furthermore, since the second reinforcing member is removed while the wall panel is suspended, and the first reinforcing member remains attached, deformation of the wall panel can be prevented when the wall panel is lifted by a crane or the like. In addition, since the first reinforcing member is positioned on the exterior side of the base mounting portion of the lower frame, when the second reinforcing member is removed, the wall panel can be suspended with the first reinforcing member attached and its lower frame can be placed on the building's foundation, and the wall panel can also be suspended with the shoji screens assembled within the window frame and installed on the building's foundation. This improves work efficiency at the construction site. [Explanation of Symbols]

[0043] 1...Wall panel, 2...Panel frame, 4...Terrace window, 5...Window frame, 6...Shoji screen, 7...First reinforcing member, 8...Second reinforcing member, 10...Structural frame, 21...Top member, 22...Vertical member, 23...Vertical member, 30...Surface material, 40...Corner side waterproofing member, 41...Vertical member covering part, 42...Side covering part, 43...Top covering part, 44...Base covering part, 45...Adhesive tape, 52...Bottom frame, 70...First reinforcing wood, 71...First connecting fitting, 80...Second reinforcing wood, 81...Second connecting fitting, 100...Base, 101...Foundation, 110...Column, 140...Base side waterproofing member, 141...Top part, 142...Surface part, 150...Waterproofing material, 160...Single-sided butyl tape, 524...Base mounting part, 701...End.

Claims

1. A waterproof wall panel having a window frame for a sliding window and a panel frame that supports the window frame, which is installed in an opening partitioned by the foundation and columns of a building and forms a wall surface, The panel frame comprises left and right vertical members, an upper member connected to each of the vertical members, and a surface member attached to the exterior surface of each of the vertical members. The window frame comprises 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 that is placed on the base. A waterproofing member is attached to the base. Each of the aforementioned vertical members has a corner-side waterproofing member attached to its lower end, which is positioned on top of the base-side waterproofing member. A waterproof wall panel structure characterized by the following features.

2. In the waterproof wall panel structure described in claim 1, The corner-side waterproofing member comprises a vertical member covering portion positioned on the exterior side of the lower end of the vertical member, a side covering portion positioned between the inner surface of the vertical member and the window frame, an upper covering portion positioned on the upper surface of the base-side waterproofing member, and a base covering portion extending downward from the vertical member covering portion and the upper covering portion and positioned on the exterior side of the base. A waterproof wall panel structure characterized by the following features.

3. In the waterproof wall panel structure described in claim 1, The base-side waterproofing member comprises an upper portion that covers the upper surface of the base between the columns, and a surface portion that extends downward from the upper portion and covers the outer surface of the base. A waterproof wall panel structure characterized by the following features.

4. In the waterproof wall panel structure described in claim 1, A water-stopping material is placed between the base-side waterproofing member and the corner-side waterproofing member. A waterproof wall panel structure characterized by the following features.

5. A panel frame having left and right vertical members and upper members connected to each of the aforementioned vertical members, A window frame comprising 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 that rests on the foundation of the building, The process of assembling a wall panel having a corner-side waterproofing member attached to the outdoor side of the lower end of each of the aforementioned vertical members, The process of attaching the base-side waterproofing member to the base, The process involves lifting the wall panel and placing the base mounting portion on the upper surface of the base-side waterproofing member, and overlapping the corner-side waterproofing member with the base-side waterproofing member, A method for constructing wall panels, characterized by having [a certain feature].

6. In the method for constructing a wall panel according to claim 5, The wall panel is detachably fitted to each of the vertical members, and includes a first reinforcing member positioned on the exterior side of the base mounting portion and capable of supporting the lower frame, and a second reinforcing member capable of supporting the base mounting portion. After lifting the wall panel and removing the second reinforcing member from each of the vertical members, the base mounting portion is placed on the upper surface of the base-side waterproof member, the corner-side waterproof member is placed on top of the base-side waterproof member, and then the first reinforcing member is removed. A method for installing wall panels characterized by the following features.

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