Draining the foundation of a modular house

Abstract

To provide a drainage for a foundation capable of preventing rainwater flowing down the surface of a siding outer wall of a modular house from infiltrating into the interior. [Solution] The base drip edge 1 is made of resin and is a long piece with a roughly L-shaped cross section having a vertical piece 2 and a horizontal piece 3. The tip of the horizontal piece 3 is bent downward to form a U-shaped tip, a soft resin sealing piece 4 extends downward from the upper end of the vertical piece 2 to abut against the inner surface of the siding exterior wall 14, eliminating any gaps, and a soft resin sealing piece 5 extends inward from the tip of the U-shaped horizontal piece 3 so that the tip of the upper piece 13 of the H-shaped steel 12 that serves as the base fits seamlessly into the U-shape.

Description

[Technical Field]

[0001] This invention relates to a drainage system for the foundation of a modular house (container house) that can seal small gaps formed in the foundation that makes up the modular house (container house) and prevent rainwater from seeping inside. [Background technology]

[0002] A modular house consists of exterior wall panels (siding) placed between vertical supports, and although there are various shapes, they are basically box-shaped. These modular houses are used for a variety of purposes, such as offices, stores, and storage sheds, and are popular throughout the country due to their low cost and short construction period. On the other hand, in recent years, large earthquakes that cause houses to collapse have occurred from time to time, so many people have built modular houses to live in. For example, in the recent Noto Peninsula earthquake, many houses collapsed or were partially destroyed, forcing people to build modular houses and live in them.

[0003] Figure 4 shows the exterior of a typical modular house, with vertical pillars (E), (E)·· at the four corners, and exterior wall panels (A), (A)·· attached between each pillar (E), (E)··. The exterior wall panel (a) is fitted with a door (b) that serves as an entrance and exit, and also has a glass window (c) to let in light. The modular house has ceiling panels and a roof attached to the top, and floor panels on the floor. It may also be equipped with an air conditioning unit and, if necessary, a toilet and a washroom inside.

[0004] FIG. 5 shows a vertical cross section of the lower end (foundation) of the modular house. The modular house (a) is constructed on a foundation of H-shaped steel (b), with wooden vertical beams (wa) standing on top of the H-shaped steel (b), which are connected to horizontal beams (e) to form a frame, and siding exterior walls (d) are attached around the modular house (a). Furthermore, a foundation flashing (he) is placed in the gap between the siding exterior wall (ni) and the vertical and horizontal bars (wa) and (ho).

[0005] As shown in Figure 6, the base flashing (F) is made of metal and is a long piece with an approximately L-shaped cross section, consisting of a vertical piece (T) and a horizontal piece (H). The vertical piece (T) is attached to the horizontal bar (E) by nailing, and the tip of the horizontal piece (H) is bent into a U-shape and the tip of the upper piece (R) of the H-shaped steel (B) fits into it. When rain falls on the modular house (a), the rainwater runs down the surface (n) of the siding exterior wall (d).

[0006] There would be no problem if the rainwater flowing down formed droplets that fell from the tip of the horizontal piece (C), but some of it seeps in through the small gap that forms between the bottom end of the siding exterior wall (D) and the horizontal piece (C) and seeps upward along the vertical piece (G). It also bends into the U-shaped tip (Ru) of the horizontal piece (Chi) and penetrates through the gap formed between it and the upper piece (Ri), then penetrates along the top surface (O) of the upper piece (Ri) of the H-shaped steel (Ro).

[0007] The seeping rainwater then causes mold to grow on the crosspieces and other wooden surfaces, resulting in the wood rotting. Although the ends of the vertical pieces (To) and the U-shaped ends of the horizontal pieces (Chi) of the base gutters (He) are folded back, the gaps cannot be completely sealed, and some rainwater seeps inside.

[0008] The "Post-Installed Foundation Drain" related to Utility Model Registration No. 3249217 is a foundation drain necessary for connecting a modular house to its foundation. After the modular house is installed, the base flashing is inserted into the gap between the exterior wall and siding of the modular house and then secured with screws. Therefore, the post-installed base flashing can be transported to the installation site in a separate package from the modular house itself, eliminating damage during transport and reducing the time, labor, and mental burden on workers, which contributes to worker health and safety management. Installing the base flashing also prevents rainwater and moisture from getting inside the foundation, allowing the modular house to be used for a long period of time and ensuring safety and comfort for users. [Patent Document 1] Utility Model Registration No. 3249217 "Post-construction foundation drainage" DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0009] In this way, gutters are installed on the foundation to prevent rainwater from seeping in as it runs down the siding exterior walls of modular houses. However, conventional gutters made by bending metal plates cannot completely prevent rainwater from seeping in. The problem that this invention aims to solve is this problem, and it provides a drainage for the foundation of a modular house that can prevent rainwater from entering almost 100%. [Means for solving the problem]

[0010] The base drip rack of this invention is a long piece of material with an approximately L-shaped cross section, consisting of vertical and horizontal pieces, the tip of which is bent downward into an L shape to form a U-shape, and is made of resin. The base flashing of this invention has the following features to prevent water from entering. (1) A soft resin seal is attached to the top end of the vertical piece, facing downward, to prevent rainwater from rising over the vertical piece. Because the seal is made of soft resin, it fits snugly against the inner surface of the siding exterior wall.

[0011] (2) A soft resin sealing piece is also provided at the end of the U-shaped horizontal piece, so that rainwater does not seep into the gap between the end of the upper piece of the H-shaped steel that is fitted into the U-shape. (3) A soft resin layer is laminated on part of the surface of the vertical piece, and the base drip edge is properly fixed to the wooden crosspiece by nailing it into this resin layer. (4) A thin soft resin layer is provided at the bottom end of the vertical piece, so that part of the vertical piece can be cut off with a cutter through the thin soft resin layer. In other words, part of the vertical piece is removed at the location where a door or sliding door will be installed as an entrance to the modular house. [Effects of the Invention]

[0012] The foundation flashing of this invention is a long piece of resin with a roughly L-shaped cross section, nailed to a wooden crosspiece, and attached by fitting the tip of the upper part of an H-beam into a U-shape formed at the end of the horizontal piece. A soft seal is attached to the top end of the vertical piece, and another soft seal is attached to the end of the U-shape, sealing any small gaps and preventing rainwater from seeping in.

[0013] The flashing is nailed to the horizontal bars, but the soft layer on the surface of the vertical pieces prevents the nailing position from shifting, making the flashing installation work more efficient. Furthermore, by nailing into the soft resin layer, the nail head penetrates into the soft resin layer, eliminating gaps and preventing water from seeping in. In addition, at the location where the door or sliding door is attached to form the entrance / exit of the modular house, a part of the vertical piece is removed, but since a thin soft resin layer is provided, it can be cut easily and accurately with a cutter. [Brief explanation of the drawings]

[0014] [Figure 1] An embodiment showing the cross section of a resin drainer of the present invention. [Figure 2] This is the case when the vertical piece where the entrance door or sliding door is attached has been removed. (a) is the drain of this invention, and (b) is a conventional drain. [Figure 3] The foundation of a modular house with the gutter of this invention installed. [Figure 4] An exterior view of a typical modular house. [Figure 5] The foundation of a modular house with a conventional gutter installed. [Figure 6] Cross section of a conventional metal drainer. DETAILED DESCRIPTION OF THE INVENTION

[0015] Figure 1 shows an embodiment of a base drip tray 1 according to the present invention. The drip tray 1 is made of hard resin and has a vertical piece 2 and a horizontal piece 3 as shown in Figure 6, and is configured as a long material with an approximately L-shaped cross section. The upper end of the vertical piece 2 has a seal piece 4 made of soft resin that curves and extends downward, and the tip of the horizontal piece 3 is bent downward to form a U-shape and has a seal piece 5 made of soft resin that also curves and extends inward.

[0016] A soft resin layer 6 is laminated on the surface of the upper end of the vertical piece 2, and this soft resin layer 6 has a constant width and extends in the longitudinal direction together with the vertical piece 2. In addition, a narrow soft resin layer 7 is provided on the lower end side of the vertical piece 2, and the vertical piece 2 made of hard resin is connected via the narrow soft resin layer 7. Therefore, the vertical piece 2 can be divided by cutting the narrow soft resin layer 7. The drip edge 1 is attached to the base of the modular house, but the modular house is equipped with a door or sliding door that serves as an entrance / exit. Therefore, the vertical piece 2 of the drip edge 1 gets in the way at the entrance / exit area and must be removed.

[0017] Figure 2 shows the drain 2 when part of the vertical piece 2 is removed, (a) shows the drain 2 of the present invention, and (b) shows a conventional metal drain. As shown, the drain 1 is constructed as a long piece that has a roughly L-shaped cross section and extends longitudinally, but the entrance / exit section 8 is removed as shown. In the case of a conventional metal drainer as shown in (b), to remove part of the vertical piece (T), a cutter such as scissors that can cut metal plates is used, but it is not possible to cut it to the specified dimensions, and the cut edge 9 becomes wavy and uneven. Of course, the cutting work is also difficult.

[0018] The drainer 1 of this invention has a thin soft resin layer 7 on its vertical piece 2. Therefore, as shown in Figure 2(a), the thin soft resin layer 7 can be cut by inserting a cutter into it and sliding it longitudinally. The cutter does not come off the thin soft resin layer 7, and can cut accurately and easily, removing the upper end of the vertical piece 2. The cut edge 10 cut by the cutter is straight and can be accurately removed because it is not made of metal as shown in (b).

[0019] Figure 3 is a vertical cross section showing the base side of a modular house when the inventive gutter 1 is installed. This figure is almost the same as the conventional base side structure shown in Figure 5, but the gutter 1 installed is different. The drip rack 1 of this invention is made of resin and is a long piece with an approximately L-shaped cross section having a vertical piece 2 and a horizontal piece 3. The vertical piece 2 is attached to a wooden crosspiece 11 by nailing, and the tip of the horizontal piece 3 is bent into a U-shape and the tip of the upper piece 13 of the H-shaped steel 12 fits into it. When rain falls on a modular house, the rainwater runs down the surface 15 of the siding exterior wall 14 .

[0020] Some of the rainwater that flows down seeps in through the small gap formed between the bottom end of the siding exterior wall 14 and the horizontal piece 3, and then seeps upward along the inner surface of the vertical piece 2 and the siding exterior wall 14. It also bends around the U-shaped tip 16 of the horizontal piece 3 and tries to seep in through the gap formed between it and the upper piece 13 of the H-beam 12. The gutter 1 of this invention has a sealing piece 4 made of soft resin at the upper end of the vertical piece 2, which can prevent rainwater from seeping upward along the vertical piece 2 and the inner surface of the siding exterior wall. Furthermore, the soft resin sealing piece 5 provided at the tip of the U-shaped horizontal piece 3 can prevent the infiltration of rainwater that would otherwise permeate along the upper piece 13.

[0021] The soft resin seal piece 4 attached to the upper end of the vertical piece 2 is curved in an arc, so that when the siding exterior wall 14 is attached and the seal piece 4 of the vertical piece 2 sandwiched between the horizontal bar 11 comes into contact with the inner surface of the siding exterior wall 14, eliminating any gaps. The seal piece 4 prevents rainwater from seeping upward and prevents it from exceeding the vertical piece 2. The soft resin seal piece 5 attached to the tip of the U-shaped horizontal piece 3 is curved in an arc, and when the drainer 1 is attached and the tip of the upper piece 13 fits into the U-shape, the seal piece 5 adheres tightly to the upper piece 13, completely sealing any gaps that may occur between them. This prevents rainwater from seeping in from the tip 16.

[0022] A soft resin layer 6 is laminated on the surface of the vertical pieces 2 of the drainer 1 of this invention. The resin layer 6 has a predetermined width and extends in the longitudinal direction, and nails are driven in using the resin layer 6 as a reference. A wooden crosspiece 11 is placed on the back side of the soft resin layer 6, so that if nails are driven in so as not to come off the resin layer 6, the nails are driven into the crosspiece 11 to secure the drainer 1 in place. Furthermore, since the resin layer 6 is made of soft resin, no gap is generated between the nail and the resin layer 6 when the nail is driven in, and the head of the nail can bite into the resin layer 6 made of soft resin without any gap. [Explanation of symbols]

[0023] 1. Drainer 2 vertical strips 3 horizontal pieces 4 sticker pieces 5 sticker pieces 6 Soft resin layer 7 Soft resin layer 8 Entrance / exit area 9 Cutting Edge 10 Cutting Edge 11 Horizontal bars 12 H type steel 13 Top piece 14 Siding exterior wall 15 Surface 16 Tip

Claims

1. A foundation flashing that can prevent rainwater flowing down the surface of the siding exterior wall of a modular house from seeping inside is made of resin and is a long piece with a roughly L-shaped cross section having vertical and horizontal pieces, the tip of the horizontal piece is bent downward to form a U-shaped tip, a soft resin sealing piece extends downward from the upper end of the vertical piece to abut against the inner surface of the siding exterior wall and eliminate gaps, and a soft resin sealing piece extends inward from the U-shaped tip of the horizontal piece so that the tip of the upper piece of the H-shaped steel that serves as the foundation fits snugly into the U-shape.

2. 2. A base drip rack according to claim 1, wherein a soft resin layer is laminated on the surface of said vertical piece, extending in the longitudinal direction with a constant width.

3. 3. A base drainer according to claim 1 or claim 2, wherein a soft resin layer is provided on a part of said vertical piece so as to have a narrow width and extend in the longitudinal direction.

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