Wall bottom structure
The lower end structure of the wall with a tongue and groove design and flowing water holes addresses the issue of moisture penetration into synthetic resin foam in drywall, preventing corrosion and maintaining heat insulation, while improving water stopping capabilities.
Patent Information
- Application Number
- JP2021074606
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-04-27
- Publication Date
- 2025-03-19
- Estimated Expiration
- 2041-04-27
AI Technical Summary
When synthetic resin foam is used as the core material in drywall, rainwater that penetrates into the drainage system can splash and cause moisture to penetrate into the foam, leading to rust, corrosion, and deterioration of heat insulation.
A lower end structure of a wall with a female connecting portion and a male connecting portion, a vertically planar fixing portion, a bottom surface that protrudes outwardly, and decorative surfaces that protrude upwardly and inwardly, featuring a tongue and groove structure with flowing water holes to quickly discharge rainwater and prevent moisture from entering the drywall core.
The solution effectively prevents corrosion of the synthetic resin foam and the wall base, maintains heat insulation integrity, and enhances water stopping capabilities by quickly discharging rainwater and preventing moisture ingress.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a bottom structure of a wall having a running water function, which is formed at the bottom of a drywall material used in buildings and structures. [Background technology]
[0002] A conventional structure for covering the bottom end of a drywall material is one in which a space is formed between the drywall material and a drip edge, and a through hole is formed in the drip edge to drain rainwater to the outside (see Patent Documents 1 and 2).
[0003] [Patent Document 1] Utility Model Registration No. 3012289 [Patent Document 2] Patent registration No. 3358474 Summary of the Invention [Problem to be solved by the invention]
[0004] However, when using drywall materials that use synthetic resin foam as the core material, rainwater that seeps into the drip edge will splash up and come into contact with the synthetic resin foam at the end of the drywall material, causing the moisture to penetrate into the synthetic resin foam, which could have adverse effects such as rusting of the iron plate on the surface, corrosion of the synthetic resin foam, and preventing a decrease in insulation properties due to the wall becoming wet. [Means for solving the problem]
[0005] In order to eliminate such defects, the present invention provides a long drywall material having female and male connectors formed at the top and bottom ends, a vertical flat fixing part, a bottom surface protruding outward from the bottom end of the fixing part, a decorative surface protruding upward at the tip of the bottom surface, and an inclined decorative surface protruding inward at the tip of the decorative surface, and the inclined decorative surface is provided. surface A decorative surface portion having a tongue piece that hangs down at the tip of the Towards one side of the tongue A groove formed in a concave shape; The grooveThe wall lower end structure comprises a drainage hole formed by cutting out a part of the wall at a fixed interval, a starter which forms a space from a fixed surface, a bottom surface and a decorative surface, and a long, rectangular cross-section furring strip, the starter being fixed horizontally to at least either the base or the top of an opening such as a sash, the furring strips being inserted vertically into the space of the starter and fixed in multiple pieces to the wall base, and drywall material being inserted into the space formed by the furring strips. Effect of the Invention
[0006] The wall bottom structure according to the present invention has the following features and effects: (1) the drainage holes quickly drain rainwater that has infiltrated inside to the outside, (2) workability is improved, (3) the starter receives rainwater that has been generated, and (4) the core material of the drywall material, such as the top of an opening in a sash, is notched, and the cutout surface is formed before construction, so that the ends of the drywall material do not come into contact with rainwater that has infiltrated inside, and when the core material of the drywall material is a synthetic resin foam, it is effective in preventing corrosion of the synthetic resin foam, preventing a decrease in insulation due to the use of a wet rag, preventing corrosion of the wall base, and preventing a decrease in strength of the drywall material. [Brief description of the drawings]
[0007] [Figure 1] FIG. 2 is an explanatory diagram showing the construction state of the lower end structure of the wall according to the present invention. [Diagram 2] FIG. 2 is an explanatory diagram showing an embodiment of a starter used in a lower end structure of a wall according to the present invention. [Diagram 3] FIG. 2 is a cross-sectional view showing a drywall material used in the lower end structure of a wall according to the present invention. [Figure 4] FIG. 2 is a cross-sectional view showing a drip edge used in the lower end structure of a wall according to the present invention. [Diagram 5] FIG. 2 is a perspective view showing a furring strip used in the lower end structure of a wall according to the present invention. [Figure 6] FIG. 4 is an explanatory diagram showing the construction sequence of the lower end structure of the wall according to the present invention. [Figure 7]FIG. 4 is an explanatory diagram showing the construction sequence of the lower end structure of the wall according to the present invention. [Figure 8] FIG. 4 is an explanatory diagram showing the construction sequence of the lower end structure of the wall according to the present invention. [Figure 9] FIG. 4 is an explanatory diagram showing the construction sequence of the lower end structure of the wall according to the present invention. [Figure 10] 11A to 11C are explanatory diagrams showing other construction states of the lower end structure of the wall according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES
[0008] An embodiment of the wall bottom structure according to the present invention will be described in detail below with reference to the drawings. That is, Fig. 1 is a cross-sectional view showing the construction of the wall bottom structure according to the present invention, Fig. 2(a) and (b) are a cross-sectional view and a partially cutaway perspective view showing a starter A used in the wall bottom structure according to the present invention. Also, Fig. 3(a) and (b) are cross-sectional views of drywall material B, and Fig. 4 is a cross-sectional view of drip edge C.
[0009] As shown in Figures 2(a) and (b), the starter A has a vertical flat fixed part 1, a bottom surface 2 that protrudes outward from the lower end of the fixed part 1, a decorative surface 4 that protrudes upward from the tip of the bottom surface 2, and an inclined decorative surface 5 that protrudes inward from the tip of the decorative surface 4. surface The decorative surface portion 3 is made up of a tongue piece 6 that hangs down from the tip of the 5, and the bottom surface 2 A groove 7 is formed in a concave shape on the bottom surface of the 2 A space K is formed by water flow holes 8 formed by cutting out a part of the surface at regular intervals, the fixed surface 1, the bottom surface 2, and the decorative surface portion 3.
[0010] The fixing portion 1 is a portion for fixing the starter A to the wall base α by a fastener β.
[0011] The decorative surface portion 3 is a portion that covers the butt end B1 portion of the lower end of the drywall material B and prevents the lower end portion of the drywall material B from being exposed to the outside.
[0012] The tongue 6 is a portion formed to prevent injury from the end of the starter A formed of a metal plate material.
[0013] The drainage holes 8 are formed at a constant pitch on the bottom surface 2 to drain rainwater R that has infiltrated between the drywall material B and the decorative surface 3 of the starter A to the outside. The formation pitch P of the drainage holes 8 is about 30 to 300 mm.
[0014] The materials used are thin metal plates, such as iron, aluminum, copper, stainless steel, titanium, aluminum-zinc alloy plated steel plates, galvalume steel plates (registered trademark), enameled steel plates, clad steel plates, laminated steel plates (PVC steel plates, etc.), sandwich steel plates (vibration-damping steel plates, etc.), polyvinyl chloride resin, polycarbonate resin, etc. (including, of course, color plates made by painting these in various colors) formed into various shapes by extrusion molding, roll molding, press molding, etc.
[0015] 3(a) and (b), for example, drywall material B has a core material 10 formed between a front material 9 and a back material 11, female connectors 12 and male connectors 13 formed at the top and bottom ends, and a gasket 14 formed within the male connector 13, and drywall material B is connected by casting fasteners β and fitting the female connectors 15 and male connectors 16 together. Of course, although starter A is used for vertically laid drywall material B in the figures, it can also be used for horizontally laid drywall material B.
[0016] The front surface material 9 and the back surface material 11 are made of thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum-zinc alloy plated steel plate, galvalume steel plate (registered trademark), enameled steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (vibration-damping steel plate, etc.), polyvinyl chloride resin, polycarbonate resin, etc. (including color plates made by painting these in various colors, of course) formed into various shapes by roll forming, press forming, extrusion forming, etc., or made of inorganic materials formed into various arbitrary shapes by extrusion forming, press forming, autoclave curing forming, extrusion-drying-baking, etc.
[0017] The core material 10 is made of a synthetic resin foam such as polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc., and is formed by mixing a raw solution of resol-type phenol with a hardener and a foaming agent, discharging the mixture onto the front material 9 or the back side of the back material 11, and heating it to react, foam, and harden it. In addition, lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stone, shirasu balloons, aluminum hydroxide, etc.) and fibrous materials (glass wool, rock wool, carbon fiber, graphite, etc.) can be mixed into the core material 10 as various flame retardants to improve fire resistance.
[0018] More specifically, the core material 10 mainly functions as a heat insulating material, a fire retardant, an adhesive, a reinforcing material, a cushioning material, a sound absorbing material, a bulking material, a weight reducing material, etc. Of course, inorganic materials such as rock wool, glass wool, ceramic wool, etc. may also be used as the core material 10.
[0019] In addition, the opening width of space K of starter A is approximately equal to the thickness of drywall material B + the thickness of furring strip D.
[0020] Next, the construction sequence of the wall bottom end structure according to the present invention will be described with reference to Figs. 1 to 10. First, as shown in Fig. 6, figure A long drip edge C as shown in FIG. 4 is fixed via a fixture β (not shown). Then, a waterproof sheet E is formed over the entire surface of the wall base α as shown in FIG.
[0021] Once the installation of the waterproof sheet E is complete, starters A as shown in Figures 2(a) and (b) are cast into place with fixing parts 1 as shown in Figure 7 using fixing device β, and are fixed in succession to the wall base α above the water drainage C of the foundation γ part.
[0022] After the installation of the starter A is completed, the fixing part 1 of the starter A and the waterproof sheet E are continuously bonded with waterproof tape F as shown in FIG.
[0023] Once the installation of the waterproof tape F is complete, insert the furring strip D as shown in Figure 5 into the space K of the starter A, forming a gap K1 on the bottom surface 2 of the starter A as shown in Figure 9, and install and fix multiple strips vertically from the foundation to the eaves using fixings β (not shown) at 450 mm intervals. The gap K1 is formed so that when rainwater seeps into the starter A, it accumulates in the space K of the starter A and does not submerge the lower end of the furring strip D, preventing corrosion of the furring strip D and providing a space to cut off rainwater that may have flowed down the furring strip from above.
[0024] Finally, as shown in FIG. 1, the drywall material B as shown in FIG. 3(a) is connected horizontally and sequentially as shown in FIG. 3(b), and the male connecting portion 13 of the lower end drywall material B is inserted into the space K and fixed horizontally via the fixing device β, and the construction is completed from the foundation to the eaves.
[0025] Of course, various accessories are used for protruding corners, recessed corners, openings (windows, doors, etc.), eaves, etc.
[0026] In addition, the openings such as the sash γ1 are formed as shown in FIG. 10, and the drywall material in the starter A is B lower end Minutes The butt end B1 portion is cut out from the core material 10 to form a cutout surface B2, which prevents rainwater from penetrating into the core material 10 and prevents deterioration of the drywall material B. [Explanation of symbols]
[0027] A Starter B. Drywall material B1 End of wood B2 Cutout surface C Drainer D. Fuselage E. Waterproof Sheet F. Waterproof Tape K space K1 gap α Wall base β Fixture γ basics γ1 sash 1 Fixed part 2 Bottom 3 Cosmetic area 4. Cosmetic surface 5. Sloping cosmetic surface 6 Tongue piece 7 grooves 8 Water hole 9 Surface material 10 Core material 11 Backing material 12 Female connection part 13 Male connection part 14 Packing
Claims
[Claim 1] A wall lower end structure comprising a long drywall material having female and male connecting portions at the top and bottom ends, a vertical, flat fixing portion, a bottom surface with the lower end of the fixing portion protruding outward, a decorative surface portion consisting of a bottom surface which protrudes upward at the tip of the bottom surface, an inclined decorative surface which protrudes inward at the tip of the decorative surface, and a tongue piece hanging down from the tip of the inclined decorative surface, a groove formed in the bottom surface in a concave shape toward the tongue piece side, a water drainage hole formed by cutting out part of the groove at regular intervals, a starter which forms a space from the fixing surface, bottom surface and decorative surface portion, and a long furring strip with a rectangular cross section, the starter being fixed horizontally to at least one of the base or the top of an opening such as a sash, the furring strips being inserted vertically into the space in the starter and being fixed to the wall base in multiple pieces, and the drywall material being inserted into the space formed by the furring strips.
Citation Information
Patent Citations
External wall structure of sill part
JP1998061049A
Water drip structure
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Flashing structure
JP1999022033A
Ventilation starter
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Starter strip
US20170226732A1