Mounting structure for exterior wall decorative materials

Abstract

To provide a mounting structure of decorative material for the exterior wall for easily installing decorative material on the exterior wall of a building.SOLUTION: A mounting structure 10 of a decorative material 30 is installed at the exterior side B outside than an exterior wall 2 via a mounting member 20, in which a base member 3 is provided at the indoor side A of the exterior wall 2 and a mounting member 20 is fixed at the outdoor side B of the exterior wall 2. The mounting structure includes a fixing means 11 for fixing the mounting member 20 from the indoor side A, and the fixing means 11 is inserted into a through holes P, 20c leading to the mounting member 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mounting structure for a decorative material for exterior wall surfaces, which allows for easy mounting of the decorative material on the exterior wall surfaces of a building. [Background technology]

[0002] In Patent Document 1, a wall-side joint provided at a position where the eaves are to be attached to the exterior wall is covered with a flat plate, and a wall-side engagement part is attached to the front surface of the flat plate. Meanwhile, an eaves-side joint is provided on the rear surface of the eaves, and an eaves-side engagement part is provided at the eaves-side joint. The document discloses an exterior wall component attachment structure in which the eaves can be temporarily fixed to the exterior wall by engaging the eaves-side engagement part with the wall-side engagement part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-131671 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned exterior wall component mounting structure, long materials such as eaves are temporarily fixed to the exterior wall only by the engagement between the components, and there is a risk that the temporary engagement between the long materials may come loose depending on the intersection of the components, deformation, and unevenness of the exterior wall surface, which can cause problems such as the eaves falling off.

[0005] Therefore, an object of the present invention is to provide a mounting structure for a decorative material for an exterior wall surface that allows for easy mounting of the decorative material on the exterior wall surface of a building. [Means for solving the problem]

[0006] The present invention has been made to solve the above-mentioned problems and has the following features. The invention described in claim 1 is an attachment structure for decorative material that is attached to the outdoor side of a building's exterior wall, in which a base material is provided on the indoor side of the exterior wall, and an attachment member is fixed to the outdoor side of the exterior wall, and the decorative material is provided via the attachment member, and is characterized in that it is provided with a fixing means that fixes from the indoor side to the attachment member, and the fixing means is inserted into a through hole that leads to the attachment member.

[0007] The invention described in claim 2 is characterized in that, in addition to the features of the invention described in claim 1, the fixing means comprises a seat plate and a bolt, the seat plate is formed with a through hole for inserting the bolt, and the inner surface of the through hole or the inner surface of the protrusion on the upper surface is a female threaded hole.

[0008] The invention described in claim 3 is characterized in that, in addition to the features of the invention described in claim 2, the bolt comprises a bolt head and a male screw, the male screw is inserted into the through hole of the base plate attached to the indoor side, the tip of the male screw protrudes to the outdoor side of the exterior wall, and the tip of the male screw is inserted into the through hole of the mounting member to fasten and fix it.

[0009] The invention described in claim 4 is characterized in that, in addition to the features of the invention described in claim 2, the protrusion consists of a nut, and the nut is welded and fixed to the upper surface of the through hole.

[0010] The invention described in claim 5 is characterized in that, in addition to the features of the invention described in claim 1 or 2, the fixing means fastens and fixes the decorative material via a crush prevention material.

[0011] The invention described in claim 6 is characterized in that, in addition to the features of the invention described in claim 2 or 3, a recess of the same shape as the seat plate is formed on the indoor side of the base material, the seat plate is attached to the recess, and the recess is processed by countersinking to a countersink diameter of approximately 50 to 60 mm. [Effects of the Invention]

[0012] The invention described in claim 1 is as described above, and in the mounting structure for decorative material that is mounted on the outdoor side of the building's exterior wall, a base material is provided on the indoor side of the exterior wall, a mounting member is fixed to the outdoor side of the exterior wall, and the decorative material is provided via the mounting member, the structure is provided with a fixing means that fixes from the indoor side to the mounting member, and the mounting member for the decorative material can be fixed simply by inserting the fixing means into the through hole that leads to the mounting member, making it easy to work with.

[0013] The invention described in claim 2 is as described above, and the fixing means comprises a seat plate and a bolt, and the seat plate has a through hole for inserting the bolt, and the inner surface of the through hole or the inner surface of the protrusion on the upper surface is a female screw hole. Therefore, by using the seat plate and the bolt separately, even if the length of the through hole from the base material to the mounting member (the width of the outer wall) is different, only bolts of different lengths are required and a common seat plate can be used, thereby reducing parts costs. In addition, the bolt insertion direction can be changed depending on the conditions on site, which is convenient.

[0014] The invention described in claim 3 is as described above, and the bolt consists of a bolt head and a male screw. The male screw is inserted into a through hole in a base plate attached to the indoor side, with the tip of the male screw protruding to the outdoor side of the exterior wall, and the tip of the male screw is inserted into a through hole in the mounting member to fasten and fix it.By leaving the tip of the bolt protruding from the outdoor side of the exterior wall, the work can be easily performed by a single worker, which reduces labor costs and improves workability.

[0015] As described above, the invention described in claim 4 has a protrusion that is made of a nut, and the nut is welded and fixed to the upper surface of the through hole. Therefore, by inserting the bolt into the nut in advance, the work can be easily performed by a single worker, thereby reducing labor costs. Furthermore, even if the length of the bolt varies depending on the site, there is no need to weld the bolt, which saves processing time.

[0016] The invention described in claim 5 is as described above, and the fixing means fastens and fixes the decorative material via the crush prevention material. Therefore, even if the base material is made of a material such as wood or the exterior wall is made of a material such as siding, by clamping the crush prevention material, deformation and damage to the base material or exterior wall when fastening and fixing is prevented, making it easy to use.

[0017] The invention described in claim 6 is as described above, and a recess of the same shape as the seat plate is formed on the indoor side of the base material, and the seat plate is attached to the recess. The recess is processed by spot facing with a diameter of about 50 to 60 mm, so that the spot facing can be performed with commercially available tools, making construction easy. In addition, by cutting the recess to about 50 to 60 mm, the strength of the base material can be maintained. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 2 is a cross-sectional view showing the mounting structure of the exterior wall surface decorative material. [Figure 2] 1A is a perspective view of a fixing means, FIG. 1B is a cross-sectional view of a seat plate, and FIG. 1C is a cross-sectional view showing a modified example of the seat plate. [Figure 3] (a) is a diagram showing the bolt of the fixing means inserted into the seat plate, and (b) is a diagram showing the fixing means being fixed to the exterior and base material. [Figure 4] (a) A diagram showing the mounting member being fixed to the exterior wall, and (b) A diagram showing the mounting member being fixed to the exterior wall and the decorative material being attached. [Figure 5] (a) is a diagram showing a fixing means attached to a thin outer wall, and (b) is a diagram showing a fixing means attached to a thick outer wall. [Figure 6] 1(a) is a cross-sectional view showing a first modified example of the mounting structure for an exterior wall surface decorative material, and FIG. 1(b) is a cross-sectional view showing a second modified example of the mounting structure for an exterior wall surface decorative material. [Figure 7] FIG. 10 is a cross-sectional view showing a third modified example of the mounting structure for an exterior wall surface decorative material. [Figure 8] FIG. [Figure 9] 10 is a cross-sectional view showing a fourth modified example of the mounting structure for the exterior wall surface decorative material. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

[0020] As shown in Figure 1, the mounting structure 10 for decorative materials for exterior wall surfaces in this embodiment has a base material 3 fixed to the indoor side A of the exterior wall 2 and a mounting member 20 fixed to the outdoor side B of the exterior wall 2 by fixing means 11, and the decorative material 30 is attached via the mounting member 20.

[0021] As shown in Fig. 1, the fixing means 11 is used to attach the decorative material 30 to the exterior wall 2 via a mounting member 20. As shown in Fig. 2(a), the fixing means 11 according to this embodiment comprises a circular seat plate 12 and a bolt 13, and is used by inserting the bolt 13 into the seat plate 12. Specifically, as shown in Fig. 2(b), a large-diameter through-hole 12a is formed in the center of the seat plate 12, and two smaller-diameter mounting holes 12b are formed around the periphery of the through-hole 12a for fixing to the base material 3 and the exterior wall 2, which will be described later. A rectangular nut 12c serving as a protrusion is attached by welding to the top surface of the through-hole 12a. The nut 12c has a female threaded hole 12d, which has the same diameter as or a slightly larger diameter than the through-hole 12a, and is fixed so as to be continuous with the through-hole 12a. The through hole 12a and the female screw hole 12d are part of a through hole P that connects to a through hole 3c of the base material 3 and a through hole 2a of the exterior wall 2, which will be described later. The nut 12c may have a polygonal shape such as a hexagonal shape, or a round shape. As shown in Fig. 2(c), a female screw hole 12a' may be formed in the through hole 12a of the seat plate 12', and the bolt 13 may be inserted through the female screw hole 12a'.

[0022] As shown in Fig. 2(a), bolt 13 comprises bolt head 13a and male threads 13b, and the circumscribing circle of bolt head 13a is larger than that of nut 12c. That is, as shown in Fig. 3(a), when the tip of male thread 13b is inserted into female thread hole 12d and through hole 12a from the top surface 12e side of nut 12c using a tool, bottom surface 13c of bolt head 13a is crimped onto top surface 12e of nut 12c. Because the circumscribing circle of bolt head 13a is larger than that of nut 12c when crimping is performed using this tool, a support (not shown) attached to a power tool does not come into contact with nut 12c, and bolt 13 can be easily attached to seat plate 12.

[0023] As shown in FIG. 1 , the male thread 13b of the bolt 13 is inserted through the through hole P from the indoor side A to attach the decorative material 3 to the outdoor side B. The male thread 13b in this embodiment has a length sufficient to protrude beyond the outdoor side B of the exterior wall 2. That is, as shown in FIG. 3( b), the length M of the male thread 13b is longer than the width L of the exterior wall 2 (described below). Therefore, the male thread 13b inserted through the through hole P protrudes toward the outdoor side B of the exterior wall 2, and the protruding male thread 13b fastens the mounting member 20 (described below). Because the male thread 13b is a separate member from the seat plate 12, a male thread 13b with a short length M can be used when the width L of the exterior wall 2 is thin (as shown in FIG. 5( a)). However, a male thread 13b with a long length M can be used when the width L of the exterior wall is thick (as shown in FIG. 5( b)). This allows various bolts 13 to be used with the same seat plate 12, allowing the use of common components for the seat plate 12 and reducing parts costs. Furthermore, even if the length of the bolts 13 varies depending on the site, there is no need to weld the bolts 13, which saves the effort of processing. Depending on the installation conditions, it is also possible to attach the base plate 12 to the base material 3 in advance and insert the bolts 13 through the mounting members 20 from the outdoor side B of the exterior wall 2, making the work easy even for a single worker (not shown).

[0024] As shown in Fig. 1, the exterior wall 2 is made of concrete such as ALC, and a decorative material 30 is attached to the exterior side B. As shown in Fig. 3(b), the exterior wall 2 according to this embodiment has a through hole 2a formed therethrough that penetrates from the indoor side A to the outdoor side B, and is part of a through hole P that connects to the through hole 12a, the female screw hole 12d, and the through hole 3c of the base material 3, which will be described later. Also, as shown in Fig. 4(a), screws 15 for attaching the base plate 12 are threaded into the top and bottom of the indoor side A of the through hole 2a.

[0025] As shown in Fig. 1, the base material 3 is made of steel or the like and is attached to the indoor side A of the exterior wall 2. As shown in Fig. 3(b), the base material 3 according to this embodiment is an angle material with an L-shaped cross section, with a vertical piece 3a fixed to the exterior wall 2 and a horizontal piece 3b fixed to the building frame (not shown), and a through hole 3c is formed in the vertical piece 3a, which is part of a through hole P that is connected to the through hole 12a, the female screw hole 12d, and the through hole 2a.

[0026] Next, the mounting member 20 will be described. As shown in Fig. 1, the mounting member 20 is for supporting the decorative material 30. As shown in Fig. 4(a), the mounting member 20 according to this embodiment is formed by extruding aluminum so as to form an L-shape with a vertical piece 20a fixed to the exterior wall 2 and a horizontal piece 20b supporting the decorative material 30, and is set to match the length of the decorative material 30. Through holes 20c are formed at the top and bottom of the vertical piece 20a for inserting the male threads 13b of the bolts 13, and the vertical piece 20a and the horizontal piece 20b are provided with rail grooves 20d for supporting the decorative material 30. The through holes 20c are opened at positions that communicate with the through holes P.

[0027] The decorative material 30 fixed to the exterior wall 2 via this mounting member 20 is a eaves material 31 that protrudes forward from the exterior wall 2, as shown in Figure 1. The eaves material 31 according to this embodiment is formed by extruding aluminum in the direction of protrusion from the exterior wall 2, as shown in Figure 4(b), and is configured by joining the ends of the eaves materials 31 together to align them in the longitudinal direction of the exterior wall 2. This eaves material 31 is fastened by inserting the bolt head 32a of the bolt 32 into the rail groove 20d of the horizontal piece 20b of the mounting member 20, inserting the male screw 32b into the through hole 31a of the eaves material 31, and inserting the male screw 32b protruding from the top surface of the eaves material 31 into the through hole 33c of the horizontal piece 33b of the support bracket 33. Next, the bolt head 32a of the bolt 32 is inserted into the rail groove 20d of the vertical piece 20a of the mounting member 20, and the male screw 32b is inserted into the through hole 33d of the vertical piece 33a and fastened, thereby attaching the eaves material 31 to the mounting member 20. The eaves material 31 only needs to protrude forward from the exterior wall 2, and may be an aluminum extrusion, plate material, or bent material extruded in the length direction of the exterior wall 2. The decorative material 30 is not limited to that in the above-mentioned embodiment, and various types are possible.

[0028] For example, as shown in Figure 6(a), a mounting structure 10A for exterior wall decorative materials may be used in which a louver material 34 of a decorative material 30A is attached to the underside of a mounting member 21 that protrudes forward from an exterior wall 2. That is, a seat plate 12 is attached to the base material 3 on the indoor side A of the exterior wall 2, and the male threads 13b of bolts 13 are inserted into the through holes P from the seat plate 12 side, with the tips of the male threads 13b protruding to the outdoor side B of the exterior wall 2. Next, mounting can be completed by simply fastening the mounting member 21 to the tips of the male threads 13b and fixing the louver material 34 to the underside of the mounting member 21. Note that in the above-mentioned embodiment, the same components as those described above are designated by the same reference numerals, and redundant explanations will be omitted.

[0029] 6(b), a mounting structure 10B for a decorative material for an exterior wall may be used, in which a spandrel 35 of a decorative material 30B is mounted along the length of the exterior wall 2 via a mounting member 21'. In this configuration, a seat plate 12 is attached to the base material 3 on the indoor side A of the exterior wall 2, and the male threads 13b of bolts 13 are inserted into the through holes P from the seat plate 12 side, with the tip of the male threads 13b protruding to the outdoor side B of the exterior wall 2. Next, mounting can be completed by simply fastening the mounting member 21' to the tip of the male threads 13b and fixing the spandrel 35 forward of the mounting member 21' via a joint material 36. Note that in the above-described embodiment, the same components as those described above are designated by the same reference numerals, and redundant explanations will be omitted.

[0030] The exterior wall 2 of the above-mentioned mounting structures 10, 10A, and 10B for decorative materials for exterior wall surfaces is made of concrete such as ALC, and the base material 3 is made of steel or the like, but the materials for the exterior wall 2 and the base material 3 are not limited to these and various types are possible.

[0031] For example, as shown in Figure 7, a mounting structure 10C for exterior wall decorative materials may be used, in which a mounting member 20' is fixed to an exterior wall 2' made of siding or other materials using a fastening means 11A, and a decorative material 30C is attached via the mounting member 20'. Specifically, the male thread 13b of a bolt 13 is inserted through a through-hole P from the indoor side A of the exterior wall 2' via a base plate 12, and the tip of the male thread 13b protrudes to the outdoor side B of the exterior wall 2'. Next, when fastening the mounting member 20 to the tip of the male thread 13b, a force parallel to the male thread 13b (in the direction of the arrow) acts on the exterior wall 2' located between the base material 3 and the mounting member 20' from the outdoor side B to the indoor side A, potentially damaging the exterior wall 2' made of siding or other materials. Therefore, a crush-preventing material 14 is embedded in advance in the through-hole 2a' of the exterior wall 2'. This reduces the load on the exterior wall 2' due to the force acting in the direction of the arrow even when fastening work is performed, preventing damage to the exterior wall 2'.

[0032] 1, the eave member 31 is a so-called forward slope type in which the tip of the eave member 31 slopes downward from the base end, but the mounting member 20' of the above-mentioned embodiment shown in Figure 7 is a backward slope type (reverse slope type) in which the base end of the eave member 31 slopes downward from the tip, and this mounting member 20' also achieves the same effects as described above. That is, the mounting member 20' is L-shaped with a vertical piece 20a' that is fixed to the exterior wall 2' and a horizontal piece 20b' that supports the decorative material 30, and the vertical piece 20a' has through holes 20c' formed at the top and bottom for inserting the male threads 13b of the bolts 13, and is provided with a hook piece 20e between the through holes 20c' for supporting the decorative material 30C, and the horizontal piece 20b' has a mounting hole 20f formed therein for attaching the eave member 31.

[0033] The eave member 31 is attached by hooking the tip of the vertical piece 33a' of the support bracket 33' onto the hook piece 20e of the mounting member 20' and abutting the horizontal piece 33b' against the upper surface of the eave member 31. Next, the male thread 32b of the bolt 32 is inserted through the through hole 33c' of the horizontal piece 33b', the through hole 31a of the eave member 31, and the through hole 20f of the horizontal piece 20b' of the mounting member 20' and fastened, thereby attaching the eave member 31. Note that the mounting member 20' in this embodiment may be changed to the mounting member 20. In the above-mentioned embodiment, the same components as those described above are given the same symbols and redundant explanations will be omitted.

[0034] As shown in Fig. 8, the crush prevention member 14 is formed in a cylindrical shape, and the hollow portion of the cylindrical shape forms the insertion portion 14a. The length N of this insertion portion 14a is the same as the thickness of the width L of the outer wall 2', as shown in Fig. 7. Therefore, it is embedded in and attached to the outer wall 2'.

[0035] Next, a modified example of the base material 3 will be described with reference to FIG. This mounting structure 10D for decorative materials for exterior walls comprises a base material 3' made of wood or the like, a base plate 12 attached to the base material 3', a mounting member 20 fixed to an exterior wall 2' made of siding or the like with fastening means 11B, and a decorative material 30 attached via the mounting member 20. The mounting structure 10D for decorative materials for exterior walls according to this embodiment has an interior wall 4 on the indoor side A of the base material 3', and an exterior wall 2' disposed on the outdoor side B' via a ventilation layer S. Specifically, because the interior wall 4 is attached to the indoor side A of the base material 3', there is no space for fastening the fastening means 11B. Therefore, a recess 3d is formed in the base material 3' by countersinking, and the base plate 12 is attached to the recess 3d. This allows the base plate 12 and bolt heads 13a to fit within the recess 3d, preventing interference with the installation of the interior wall 4. Since the diameter of the seat plate 12 is preferably about 50 to 60 mm, the diameter of the counterbore can also be machined to about 50 to 60 mm, and construction can be performed using general tools.

[0036] The exterior wall 2' is attached to the outdoor side B' of the base material 3' via a ventilation layer S. Specifically, the male thread 13b of the bolt 13 is inserted from the indoor side A through the base plate 12 and into the through hole 3c' of the base material 3' and the through hole P of the through hole 2a' of the exterior wall 2', with the tip of the male thread 13b protruding from the outdoor side B of the exterior wall 2'. Next, when the mounting member 20 is fastened to the tip of the male thread 13b, a force parallel to the male thread 13b (in the direction of the arrow) acts from the outdoor side B to the indoor side A on the exterior wall 2' and the ventilation layer S located between the base material 3' and the mounting member 20, which may damage the exterior wall 2', such as a siding material. For this reason, a crush prevention material 14 is embedded in advance in the through hole 2a' and the ventilation layer S of the exterior wall 2'. This reduces the load on the exterior wall 2' due to the force acting in the direction of the arrow even when fastening work is performed, preventing damage to the exterior wall 2'. Note that in the above-mentioned embodiment, the same members as those described above are given the same reference numerals and redundant explanations will be omitted.

[0037] As shown in Figure 3(a), the above-mentioned mounting structure 10 for decorative materials for exterior walls is formed by first fastening the male thread 13b of the bolt 13 to the female thread hole 12d of the nut 12c on the seat plate 12, and crimping the upper surface 12e of the nut 12c to the lower surface 13c of the bolt head 13a. As shown in Figure 3(b), when the seat plate 12 is attached to the exterior wall 2 by inserting a screw 15 into the mounting hole 12b so as to form a through hole P in which the through hole 12a and female thread hole 12d of the seat plate 12 are connected to the through holes 2a, 3c of the pre-formed exterior wall 2 and base material 3, the tip of the male thread 13b protrudes from the through hole P to the outdoor side B of the exterior wall 2. Then, as shown in Fig. 4(a), the male screw 13b is inserted into the through hole 20c of the mounting member 20 and fastened with a nut 16, so that the mounting member 20 is attached to the outdoor side B of the exterior wall 2 as shown in Fig. 4(b), and then the decorative material 30 is attached to the mounting member 20. This completes the installation.

[0038] As described above, according to this embodiment, the base materials 3, 3' are provided on the indoor side A of the exterior walls 2, 2' of the building, and the mounting members 20, 20', 21, 21' are fixed to the outdoor side B of the exterior walls 2, 2'. In the mounting structures 10, 10A, 10B, 10C, 10D of the decorative materials 30, 30A, 30B, 30C, which are attached to the outdoor side B of the exterior walls 2, 2' of the building via the mounting members 20, 20', 21, 21', The mounting members 20, 20', 21, 21' of the decorative materials 30, 30A, 30B, 30C are provided with fixing means 11, 11A, 11B for fixing the mounting members 20, 20', 21, 21' from the indoor side A, and the mounting members 20, 20', 21, 21' of the decorative materials 30, 30A, 30B, 30C can be fixed simply by inserting the fixing means 11, 11A, 11B into the through holes P (through holes 2a, 2a', 3c, 3c', 12a, female screw holes 12a', 12d), 20c, 20c' that extend to the mounting members 20, 20', 21, 21', which improves workability.

[0039] Furthermore, fixing means 11, 11A, 11B are comprised of seat plates 12, 12' and bolts 13. Seat plate 12 has through-hole 12a for inserting bolt 13, and the inner surface of through-hole 12a or the inner surface of a protrusion on the upper surface is female-threaded hole 12a', 12d. Therefore, by providing seat plates 12, 12' and bolts 13 separately, even if the lengths of through-holes P, 20c, 20c' from base members 3, 3' to mounting members 20, 20', 21, 21' (width L of exterior walls 2, 2') are different, only bolts 13 of different lengths are required, and common parts can be used for seat plates 12, 12', reducing parts costs. Furthermore, the insertion direction of bolt 13 can be changed depending on on-site conditions, providing added convenience.

[0040] In addition, the bolt 13 consists of a bolt head 13a and a male screw 13b, and the male screw 13b is inserted into the through hole 12a of the seat plate 12, 12' attached to the indoor side A, with the tip of the male screw 13b protruding to the outdoor side B of the exterior walls 2, 2', and the tip of the male screw 13b is inserted into the through holes 20c, 20c' of the mounting members 20, 20', 21, 21' to tighten and fix the members.By leaving the tip of the bolt 13 protruding from the outdoor side B of the exterior walls 2, 2', the work can be easily performed by a single worker, which reduces labor costs and improves workability.

[0041] Furthermore, the protrusion is made up of a nut 12c, and since the nut 12c is welded and fixed to the upper surface of the through hole 12a, by inserting the bolt 13 into the nut 12c in advance, the work can be easily performed by a single worker, thereby reducing labor costs. Furthermore, even if the length M of the bolt 13 varies depending on the site, there is no need to weld the bolt 13, so the work of processing can be saved.

[0042] Furthermore, since the fixing means 11A, 11B fasten and fix the decorative materials 30, 30A, 30B, 30C via the crush prevention material 14, even if the base materials 3, 3' are made of a material such as wood or the exterior wall 2' is made of a material such as siding, by clamping the crush prevention material 14, deformation and damage to the base materials 3, 3' and the exterior wall 2' are prevented when fastening and fixing, making it easy to use.

[0043] Furthermore, on the indoor side A of the base material 3', a recess 3d of the same shape as the seat plates 12, 12' is formed, and the seat plates 12, 12' are attached to the recess 3d, which is machined by spot facing to a diameter of about 50 to 60 mm, making the work easy as the spot facing can be performed using commercially available tools. Also, by cutting the recess 3d to about 50 to 60 mm, the strength of the base material 3' can be maintained. [Explanation of symbols]

[0044] 2, 2' exterior wall 2a, 2a' through hole 3, 3' Underlayment 3a Vertical piece 3b Horizontal piece 3c, 3c' through hole 3d recess 4 Inner wall 10, 10A, 10B, 10C, 10D Mounting structure for decorative materials for exterior walls 11, 11A, 11B Fixing means 12, 12' seat board 12a Through hole 12a' female screw hole 12b Mounting hole 12c nut 12d female screw hole 12e top 13 volts 13a Bolt head 13b male thread 13c Bottom side 14 Anti-collapse material 14a Insertion part 15 screws 16 Nut 20, 20', 21, 21' Mounting parts 20a, 20a' vertical piece 20b, 20b' horizontal piece 20c, 20c' through hole 20d rail groove 20e Hook 20f through hole 30, 30A, 30B, 30C decorative materials 31 Eave material 31a Through hole 32 volts 32a bolt head 32b male thread 33, 33' Support bracket 33a, 33a' vertical piece 33b, 33b' horizontal piece 33c, 33c' through hole 33d through hole 34 Louver material 35 Spandrel 36 Joint sealant A Indoor side B, B' Outdoor side L width M, N length P through hole S Ventilation layer

Claims

1. In a mounting structure for a decorative material, a base material is provided on the indoor side of the exterior wall of a building, a mounting member is fixed to the outdoor side of the exterior wall, and a decorative material is mounted on the outdoor side of the exterior wall of the building via the mounting member, a fixing means inserted into a through hole extending from the indoor side to the mounting member; a mounting structure for decorative materials for exterior wall surfaces, characterized in that the fixing means comprises a base plate and a bolt, the base plate having a through hole formed therein that is connected to the through hole for inserting the bolt, a female screw hole formed on the inner surface of the through hole or on the inner surface of a protrusion on the upper surface, the bolt comprising a bolt head and a male screw, the male screw being inserted into the through hole of the base plate attached to the indoor side, with the tip of the male screw protruding to the outdoor side of the exterior wall, and the tip of the male screw being inserted into the through hole of the mounting member to tighten and fix it.

2. 2. The mounting structure for a decorative material for an exterior wall surface according to claim 1, wherein the fixing means fastens and fixes the decorative material via a crush prevention material.

3. The mounting structure for decorative materials for exterior wall surfaces described in claim 1, characterized in that a recess of the same shape as the seat plate is formed on the indoor side of the base material, the seat plate is attached to the recess, and the recess is processed by countersinking to a countersink diameter of approximately 50 to 60 mm.

4. 2. The mounting structure for an exterior wall decorative material according to claim 1, wherein the protrusion comprises a nut, and the nut is welded and fixed to the upper surface of the through hole.

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