Corner exterior wall mounting bracket, corner exterior wall structure, and corner remodeling method

Abstract

To provide an internal corner outer wall mounting fitting compatible with a plurality of specifications different for each era when exchanging the outer wall of the internal corner, and improving workability of a reform, and to provide an outer wall structure of the internal corner using the internal corner outer wall mounting fitting and a reform method of the internal corner.SOLUTION: There is provided an internal corner outer wall mounting fitting 1 of the internal corner where one outer wall panel 4a and the other outer wall panel 4c perpendicular to the one outer wall panel 4a or a window sash 5 are abutted to each other. The internal corner outer wall mounting fitting comprises: a mounting bracket 10 with one end 12 fixed to a column body 3 and other end 15 arranged at an innermost side of a joint of the internal corner; and a holding fitting 20 having a first holding piece 22 rotatably mounted to the other end 15 of the mounting bracket 10 toward the one outer wall panel 4a and holding a first frame 40 of the one outer wall panel 4a in an indoor direction, and a second holding piece 23 mounted rotatably in a reverse direction of the first holding piece 22.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an inside corner exterior wall mounting bracket that is placed in an inside corner of an exterior wall and attaches an exterior wall, an inside corner exterior wall structure using the inside corner exterior wall mounting bracket, and a method for remodeling an inside corner by replacing an exterior wall panel in the inside corner. [Background technology]

[0002] Various exterior wall panel fixing structures for fixing inside corners have been proposed. For example, Patent Document 1 discloses an inside corner holding member that holds two exterior wall panels provided at an inside corner by pinching the outdoor side and the indoor side of each of them as an exterior wall panel fixing structure for fixing an exterior wall panel at an inside corner. Patent Document 2 also discloses a connecting metal fitting formed by extending a cross section in a substantially V-shape, and discloses that the inside corner is formed by connecting both inclined pieces of the connecting metal fitting to the side end faces of the two exterior wall panels that form the inside corner via a spacer. Also disclosed is a configuration in which a caulking material is filled in the space surrounded by the side end faces of each exterior wall panel, the outer surfaces of the inclined pieces of the connecting metal fitting, and the backup material.

[0003] Patent Document 3 discloses a structure which has a support member having one end fixed to a column and the other end positioned at the back of the joint, and a pressure plate rotatably arranged on the other end of the support member, the pressure plate pressing down on a plate piece formed on the exterior wall panel, thereby fixing the exterior wall panel. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-121881 A [Patent Document 2] Publication number 7-18810 [Patent Document 3] Patent No. 6389549 Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the specifications of the exterior wall panels, the specifications of the columns that secure the exterior wall panels, and the specifications of the window sashes adjacent to the exterior wall panels vary depending on the era in which the building was built, for example, when replacing exterior wall panels, parts for attaching the exterior wall panels must be prepared for each different specification, which leads to an increase in the number of parts and inefficient inventory management of parts. Also, since the construction procedures differ depending on the era, the workability of the renovation is low.

[0006] Therefore, the present invention aims to provide an inside corner exterior wall mounting bracket that can accommodate a variety of different specifications depending on the era when replacing an exterior wall installed in an inside corner, thereby improving the ease of renovation work, an inside corner exterior wall structure using said inside corner exterior wall mounting bracket, and a method of renovating an inside corner. [Means for solving the problem]

[0007] The inside corner exterior wall mounting bracket of the present invention is an inside corner exterior wall mounting bracket that is installed in an inside corner formed by butting together one exterior wall panel having a plate-shaped first frame portion at its side end and the other exterior wall panel or window sash that is arranged perpendicular to the one exterior wall panel, and is characterized in comprising: a mounting bracket having one end fixed to a column formed in the wall of the inside corner and the other end arranged deep in a joint formed in the inside corner, and a pressing bracket having: a first pressing piece that is rotatably attached to the other end of the mounting bracket toward the one exterior wall panel and presses the first frame portion toward the interior, and a second pressing piece that is rotatably attached to the other end of the mounting bracket in the opposite direction to the first pressing piece.

[0008] The exterior wall structure of an inside corner of the present invention is an exterior wall structure of an inside corner in which one exterior wall panel having a first frame portion at its side end is butted against the other exterior wall panel or window sash arranged perpendicular to the one exterior wall panel, and is characterized in that it comprises a column formed in the wall of the inside corner, a mounting bracket having one end fixed to the column and the other end arranged deep in a joint formed in the inside corner, and a clamping fitting having: a first clamping piece rotatably attached to the other end of the mounting bracket toward the one exterior wall panel and pressing the first frame portion toward the interior, and a second clamping piece rotatably attached to the other end of the mounting bracket in the opposite direction to the first clamping piece.

[0009] The exterior wall structure of the inside corner of the present invention is characterized in that the column is a lip channel steel arranged so as to open toward one of the exterior wall panels, and further comprises a flat back plate inserted into the inside of the column and spanned between the lips of the column, and a spacer held between the lips of the column on the outside of the column, and the mounting bracket is arranged on the opposite side of the back plate with the spacer between them, with one end of the mounting bracket being inserted into an insertion hole formed in the one end, and with a bolt screwed into a screw hole formed in the back plate, the lip and the spacer are clamped between the back plate and one end, thereby fixing the mounting bracket.

[0010] The exterior wall structure for an inside corner of the present invention is characterized in that the insertion hole is a long hole that is long in the horizontal direction.

[0011] The exterior wall structure of an inside corner of the present invention is an exterior wall structure of an inside corner in which the one exterior wall panel and the other exterior wall panel are butted together, the other exterior wall panel having a plate-shaped second frame portion at a side end portion, and the second pressing piece pressing the second frame portion toward the interior of the building.

[0012] The exterior wall structure for an inside corner of the present invention is an exterior wall structure for an inside corner where the one of the exterior wall panels and the window sash are butted together, and is characterized in comprising: an exterior wall panel side portion formed at an end of the one of the exterior wall panels and serving as a side surface of the joint of the inside corner; a sash inside corner cover fixed to an end of the window sash and approaching the exterior wall panel side portion for adjusting the joint width of the inside corner; and a joint material filled between the exterior wall panel side portion and the sash inside corner cover.

[0013] The method for reforming an inside corner of the present invention includes the steps of removing one of the existing exterior wall panels that forms the inside corner, removing the other existing exterior wall panel that forms the inside corner, fixing the one end of the mounting bracket to the column, fixing the clamp to the other end of the mounting bracket, placing one new exterior wall panel in the position where the one existing exterior wall panel was removed, placing the other new exterior wall panel in the position where the other existing exterior wall panel was removed, inserting a tool through the joint formed in the inside corner, manipulating the first frame portion of the clamp so as to abut against the outdoor side of the first pressing piece of the new exterior wall panel and manipulating the second frame portion so as to abut against the outdoor side of the second second pressing piece, and filling a joint material between the side portion of the one new exterior wall panel and the side portion of the other new exterior wall panel.

[0014] The method for remodeling an inside corner of the present invention includes the steps of removing one of the existing exterior wall panels that forms the inside corner, fixing a sash inside corner cover to the end of the window sash, fixing the one end of the mounting bracket to the column, fixing the clamp to the other end of the mounting bracket, positioning one new exterior wall panel in the position where the one existing exterior wall panel was removed, inserting a tool through the joint formed in the inside corner and manipulating the first clamp piece of the clamp so as to abut against the outdoor side of the first frame portion of the new exterior wall panel, and filling a joint material between the side portion of the one new exterior wall panel and the sash inside corner cover. Effect of the Invention

[0015] According to the present invention, the mounting bracket is fixed at one end to a column formed in the wall of the inside corner and at the other end to the back of the joint formed in the inside corner, and the clamping metal fitting is attached to the other end of the mounting bracket so as to be rotatable toward one of the exterior wall panels, and is formed with a first clamping piece that presses the first frame part of the exterior wall panel toward the interior, and a second clamping piece that is attached so as to be rotatable in the opposite direction to the first clamping piece, so that, for example, by fixing one of the exterior wall panels constituting the inside corner with the first clamping piece and fixing the other exterior wall panel with the second clamping piece, two exterior wall panels can be fixed with one exterior corner mounting bracket. It is also possible to fix one of the exterior wall panels constituting the inside corner with the first clamping piece, while leaving the existing window sash or exterior wall panel on the other side as it is.

[0016] According to the exterior wall structure for a recessed corner of the present invention, one end of the mounting bracket is fixed to the pillar, the other end of which is positioned at the back of the joint, and the clamping fitting formed on the other end of the mounting bracket has a first clamping piece that presses the first frame portion of one of the exterior wall panels toward the interior, and a second clamping piece that is attached so as to be rotatable in the opposite direction to the first clamping piece.Therefore, it is possible to fix one exterior wall panel with the first clamping piece, while pressing and fixing the other exterior wall panel with the second clamping piece, and the existing window sash can be installed as is.

[0017] According to the exterior wall structure for an inside corner of the present invention, there is further provided a back plate that is inserted inside the column of the lip channel steel and suspended between the lips, and a spacer that is held between the lips on the outside of the column, one end of the mounting bracket is positioned on the opposite side of the back plate with the spacer in between, and a bolt is inserted into an insertion hole formed in one end of the mounting bracket and screwed into a screw hole formed in the back plate, thereby sandwiching the lip and spacer between the back plate and one end, and the mounting bracket is fixed, so that the position of the mounting bracket can be adjusted depending on the thickness of the spacer, and the same clamping hardware can be used to accommodate various differences in specifications, such as differences in the dimensions of columns depending on the era.

[0018] According to the exterior wall structure of the recessed corner portion of the present invention, the insertion hole formed at one end of the mounting bracket is a horizontally long hole, so that the position of the mounting bracket can be adjusted and the same clamping hardware can be used to accommodate the various differences in specifications that vary depending on the era.

[0019] According to the exterior wall structure for a recessed corner of the present invention, the first pressing piece presses the first frame portion formed on one exterior wall panel toward the interior, and the second pressing piece presses the second frame portion formed on the other exterior wall panel toward the interior.Since two exterior wall panels can be fixed with one pressing fitting, construction is made easy.

[0020] According to the exterior wall structure for an inside corner of the present invention, the sash inside corner cover is fixed to the end of the window sash and approaches the side portion of the exterior wall panel to adjust the joint width of the inside corner. Therefore, even if the joint width between the existing window sash and the newly installed exterior wall panel is too long due to exterior wall replacement renovation, etc., the joint width can be shortened by providing the sash inside corner cover, and an appropriate joint fit can be achieved.

[0021] According to the method for reforming an inside corner of the present invention, both exterior wall panels that form the inside corner are removed, one end of the mounting bracket is fixed to the column, and then a clamp is fixed to the other end of the mounting bracket. One new exterior wall panel is placed in the position where one existing exterior wall panel was removed, and the other new exterior wall panel is placed in the position where the other existing exterior wall panel was removed. A tool is inserted through the joint between the two new exterior wall panels, and the first frame portion of one exterior wall panel is operated so as to abut against the outdoor side of the first pressing piece of the clamp, and the second frame portion is operated so as to abut against the outdoor side of the second pressing piece. Thus, the two new exterior wall panels can be fixed with one clamp, and workability can be improved while reducing the number of parts.

[0022] According to the method of renovating an inside corner of the present invention, the joint width can be adjusted by fixing a sash inside corner cover to the end of the window sash, and joint material can be filled between the side portion of one of the newly installed exterior wall panels and the sash inside corner cover to achieve an appropriate joint fit. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is a cross-sectional view illustrating the overall configuration of an exterior wall structure of an inside corner portion of the first embodiment, with joint material omitted. [Diagram 2] FIG. 2 is a cross-sectional view of an inside corner exterior wall mounting bracket, with a portion of the bracket omitted, for illustrating joint materials and the like of an inside corner exterior wall structure of the first embodiment. [Diagram 3] 1A is a perspective view illustrating the external configuration of a mounting bracket, and FIG. 1B is a perspective view illustrating the external configuration of a pressing fitting. [Figure 4] FIG. 13 is an exploded perspective view illustrating the state in which the inside corner exterior wall mounting bracket is attached to a pillar. [Diagram 5] FIG. 13 is a diagram illustrating a configuration in which the mounting position of the mounting bracket can be adjusted by shifting it in the outward direction of the surface of one of the exterior wall panels by using an elongated insertion hole. [Figure 6] FIG. 13 is a diagram illustrating a configuration in which an exterior wall structure for an inside corner does not use a spacer, and the mounting bracket is adjusted by shifting it in the in-plane direction of one of the exterior wall panels. [Figure 7] 13 is a diagram illustrating a pressing fitting in which a first pressing piece and a second pressing piece are fixed so as to be able to swing. FIG. [Figure 8] A diagram explaining an L-shaped cross-section sash inside corner cover that can be attached to window sashes of different specifications. [Figure 9] FIG. 2 is a diagram showing an inside corner formed by an existing exterior wall panel and an existing window sash. [Figure 10] (A) is a diagram showing the state after one of the existing exterior wall panels at the inside corner has been removed and a sash inside corner cover has been fixed to the end of the window sash, and (B) is a partially enlarged diagram of (A) showing the state after a hole is drilled in the inside corner stop plate into which a mounting bracket can be inserted. [Figure 11]FIG. 13 is a diagram showing the state in which the mounting bracket is fixed to the column in the method for reforming an inside corner of the first embodiment. [Figure 12] FIG. 11 is a diagram illustrating the state in which a newly installed exterior wall panel is positioned and the first frame portion is pressed against the inside corner stop plate to fix the newly installed exterior wall panel in the method for renovating an inside corner portion of the first embodiment. [Figure 13] FIG. 11 is a cross-sectional view illustrating the overall configuration of an exterior wall structure of an inside corner portion of a second embodiment, with joint material omitted. [Figure 14] FIG. 11 is a cross-sectional view of an inside corner exterior wall mounting bracket, with a portion of the inside corner exterior wall structure of the second embodiment omitted, illustrating joint materials and the like. [Figure 15] FIG. 13 is a diagram illustrating an inside corner portion where existing exterior wall panels are formed on both sides. [Figure 16] FIG. 13 is a diagram illustrating the state after both existing exterior wall panels forming the inside corner have been removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] First Embodiment Hereinafter, a first embodiment of an inside corner exterior wall mounting bracket 1 according to the invention, an inside corner exterior wall structure 2 using said inside corner exterior wall mounting bracket 1, and a method for remodeling an inside corner for constructing the inside corner exterior wall structure 2 will be described with reference to Figs. 1 to 12. The building in which an inside corner is formed in this embodiment is a light-gauge steel-framed building in which an exterior wall panel is fixed to a lip channel steel column 3. The inside corner exterior wall structure 2 in this embodiment is a structure in which a new exterior wall panel 4a is installed using an existing framework, and the inside corner is formed by butting one exterior wall panel 4a against the other window sash 5.

[0025] As shown in Fig. 1 and Fig. 2, the exterior wall structure 2 of the inside corner portion includes a column 3 formed in the wall of the inside corner portion, an inside corner stop plate 6 fixed to the column 3 and arranged on the indoor side of the inside corner portion, an inside corner exterior wall mounting bracket 1 for mounting an exterior wall panel 4a to the inside corner portion, one exterior wall panel 4a having a plate-shaped first frame portion 40 at its side end, and the other window sash 5 arranged perpendicular to the one exterior wall panel 4a. In Fig. 1, the illustration of the joint material 7, the inside corner insulation material 8, and the joint backup material 9 described later is omitted for the convenience of illustrating the inside corner exterior wall mounting bracket 1. In Fig. 2, the illustration of the joint material 7, the inside corner insulation material 8, and the joint backup material 9 is partially omitted for the convenience of illustrating the inside corner exterior wall mounting bracket 1.

[0026] The column 3 is a steel column 3 that constitutes part of the structural frame of the building and extends in the vertical direction. In this embodiment, the column 3 is a lip channel steel arranged to open toward one of the exterior wall panels 4a. The column 3 is, for example, part of a framework formed into a rectangular frame shape, and is connected with bolts and nuts to another column of lip channel steel erected on the indoor side of the top of the inside corner. The arrangement and shape of the other column to which the column 3 is connected are not limited to those described above, and may vary depending on the age of the building.

[0027] The inside corner stop plate 6 is made of steel plate with an L-shaped horizontal cross section, is positioned at the back of the inside corner, and serves as a base for fixing one exterior wall panel 4a and the other window sash 5 to the inside corner.

[0028] The inside corner exterior wall mounting bracket 1 has a mounting bracket 10 as shown in FIG. 3(A) and a pressing bracket 20 as shown in FIG. 3(B). As shown in FIG. 1 and FIG. 4, one end 12 of the mounting bracket 10 is fixed to a column 3. Inside the column 3 to which the one end 12 of the mounting bracket 10 is fixed, a back plate 30 having a screw hole 32 formed in the center is provided. The back plate 30 is a flat plate arranged so as to be bridged between the two lips of the column 3 inside the column 3. On the outside of the column 3, a spacer 31 is provided on the opposite side to the back plate 30, sandwiching the two lips and the opening of the column 3. The spacer 31 is formed by bending the upper and lower edges of a steel flat plate, and notches 33 are formed on both the left and right ends of the bent upper and lower edges, and the notches 33 are aligned with the lips of the column 3, so that the spacer is held between the two lips outside the column 3. A through hole 34 is formed in the center of the spacer 31.

[0029] One end 12 of the mounting bracket 10 is flat with an insertion hole 13 formed in the center. A fixing bolt 14 is inserted into the insertion hole 13. The insertion hole 13 is a long hole that is long in the horizontal direction. The fixing bolt 14 is inserted into the insertion hole 13 formed in the one end 12 of the mounting bracket 10 and the through hole 34 formed in the spacer 31, and is screwed into the screw hole 32 of the back plate 30. By tightening the fixing bolt 14, the lip of the column 3 and the spacer 31 are sandwiched between the back plate 30 and the one end 12 of the mounting bracket 10, and the mounting bracket 10 is fixed to the column 3. At this time, since the insertion hole 13 formed in the one end 12 of the mounting bracket 10 is a long hole that is long in the horizontal direction, the mounting bracket 10 can be adjusted by shifting its mounting position in the out-of-plane direction of one of the exterior wall panels 4a, as shown in Figures 5(A) and (B). In addition, in the exterior wall structure 2 of the recessed corner, the mounting position of the mounting bracket 10 can be adjusted by shifting it in the in-plane direction of one of the exterior wall panels 4a by preparing a plurality of spacers 31 of different thicknesses or, as shown in Fig. 6, by not using the spacer 31. This makes it possible to fix one of the exterior wall panels 4a by adjusting the position of the mounting bracket 10 according to the different specifications, even if the specifications of the recessed corner differ depending on the year the building was constructed.

[0030] 1 and 3(B), the mounting bracket 10 is bent from one end 12 at a substantially right angle toward the apex of the inside corner and then bent back at approximately 45 degrees, with the other end 15 being disposed deep in the joint formed in the inside corner. The other end 15 of the mounting bracket 10 is formed with a bolt hole 16 into which the mounting bolt 24 of the press fitting 20 is inserted and screwed.

[0031] The pressing fitting 20 has a base 21 that is fastened and fixed to the outdoor side of the other end 15 of the mounting bracket 10, and a first pressing piece 22 and a second pressing piece 23 that are rotatably fixed to the base 21. The base 21 is a vertically long flat plate, and is provided with a mounting hole 25 into which a mounting bolt 24 for fixing to the mounting bracket 10 is inserted. Also, as shown in Figures 3(B) and 7, a first shaft portion 26 that swingably fixes the first pressing piece 22 is formed at a position above the mounting hole 25 of the base 21. A second shaft portion 27 that swingably fixes the second pressing piece 23 is formed at a position below the mounting hole 25 of the base 21.

[0032] The first pressing piece 22 has a base end fixed to a first shaft portion 26 so as to be able to swing, and is bent from the base end to press a plate-shaped first frame portion 40 formed at a side end of one of the exterior wall panels 4a toward the interior of the room. The second pressing piece 23 has a shape similar to that of the first pressing piece 22, and is fixed to a second shaft portion 27 so as to be able to swing. Each side edge of the base 21 is partially bent toward the exterior, and a restricting portion 28 is formed which restricts the swing range of the first pressing piece 22 to a range on the one exterior wall panel 4a side, and restricts the swing range of the second pressing piece 23 to a range on the other window sash 5 side.

[0033] In this embodiment, one exterior wall panel 4a of the inside corner is a new exterior wall panel 4a that is newly installed after removing an existing exterior wall panel 50, as shown in Fig. 1. This exterior wall panel 4a has a panel body 41, a first frame portion 40 formed on the periphery of the back surface of the panel body 41, and a heat insulating material 42 provided inside the first frame portion 40 on the back surface side of the panel body 41. The first frame portion 40 is groove-shaped and opens toward the outside in the in-plane direction of one exterior wall panel 4a, one side panel of which is fixed to the panel body 41, and the other side panel of which is pressed against the inside corner stop plate 6 toward the interior direction by a first pressing piece 22.

[0034] The other window sash 5 of the inside corner is, for example, a window sash 5 that forms a window by fitting a sliding window screen into it. The window sash 5 is not limited to a sliding window, but may be a window that is opened by other methods, or may be a fixed window. A sash stop plate 51 with an end bent into an L shape is fixed to the inside corner stop plate 6 with a bolt and nut, and this sash stop plate 51 fixes the window sash 5 by sandwiching a locking piece 52 formed to protrude laterally from a position on the indoor side of the side edge of the window sash 5 between the inside corner stop plate 6 and the sash stop plate 51.

[0035] A sash inside corner cover 53 is fixed to the end of the window sash 5 on the outdoor side of the locking piece 52 on the side edge. The sash inside corner cover 53 is shaped by abutting one plate surface of an unequal-sided L-angle 54 and one side surface of a groove-shaped longitudinal member 55 and fixing them to each other. The sash inside corner cover 53 is fixed to each other so that the other plate surface of the L-angle 54 and the bottom surface of the groove steel face the outdoor side and form a flat surface without steps. The sash inside corner cover 53 is formed by fixing the L-angle 54 to the corner on the outdoor side of the window sash 5 and extending the longitudinal member 55 so as to approach the side portion of one of the exterior wall panels 4a. The sash inside corner cover 53 is available in a number of different sizes and shapes depending on the specifications of the window sash 5, and is adjusted to correspond to the difference in the joint width of the inside corner depending on the specifications of the window sash 5, so that the joint width is the same even if the specifications are different. The sash inside corner cover 53 is not limited to a combination of the L-angle 54 and the longitudinal member 55, but may be a long metal body having an L-shaped cross section as shown in FIG. 8, depending on the specifications of the window sash 5.

[0036] At the back of the joint of the inside corner formed by the side part of the exterior wall panel 4a and the sash inside corner cover 53, as shown in FIG. 2, a plate-shaped inside corner insulation material 8 is provided so as to abut against the inside corner stop plate 6, and a joint backup material 9 is arranged on the outdoor side of the inside corner insulation material 8 in an L-shaped cross section over the entire vertical length of one exterior wall panel 4a and the other window sash 5. Then, for example, a wet joint material 7 is filled between the side part of the exterior wall panel 4a and the sash inside corner cover 53. Note that the joint between the side part of the exterior wall panel 4a and the sash inside corner cover 53 may be filled with a dry joint material instead of the wet joint material 7. In this way, the joint width is adjusted by the sash inside corner cover 53, so that the joint can be made to have an appropriate width and depth, and by filling the joint material 7, it is possible to exhibit appropriate performance such as watertightness and fire resistance for an appropriate period of time.

[0037] Next, a method for remodeling an inside corner by constructing the exterior wall structure 2 for the inside corner configured as above will be described. The method for remodeling an inside corner in this embodiment is a method for remodeling an inside corner formed by an existing exterior wall panel 50 and an existing window sash 5, as shown in Fig. 9, and is a method for replacing the existing exterior wall panel 50 with a new exterior wall panel 4a.

[0038] The method of reforming an inside corner is to first remove one of the existing exterior wall panels 50 that form the inside corner, as shown in Figures 9 and 10(A). Specifically, the dry joint material 57 fixed to the inside corner is removed, the exterior wall fixing plate 56 that fixes the existing exterior wall panel 50 is removed, and the existing exterior wall panel 50 is removed.

[0039] Then, a sash inside corner cover 53 prepared according to the specifications of the window sash 5 is fixed to the end of the window sash 5. Double-sided tape is provided on the sash inside corner cover 53 at a position where it abuts against the window sash 5, and after temporary fixing with the double-sided tape, the sash inside corner cover 53 is fixed to the window sash 5 by driving in a screw. In this embodiment, an L-angle 54 constituting the sash inside corner cover 53 is fixed to the outdoor-facing corner of the window sash 5, and a longitudinal member 55 is fixed so as to extend close to the side portion of one of the exterior wall panels 4a.

[0040] Next, as shown in FIG. 10(B), a hole into which the mounting bracket 10 can be inserted is machined in the inside corner stop plate 6. The mounting bracket 10 is inserted into the hole and placed at an appropriate position. At this time, as shown in FIG. 4 and FIG. 11, the back plate 30 is placed on the indoor side of the inside corner stop plate 6 so as to be installed inside the column 3, and the spacer 31 is placed on the outside of the column 3. The fixing bolt 14 is inserted from the insertion hole 13 formed in the center of one end 12 of the mounting bracket 10, and the fixing bolt 14 is screwed into the screw hole 32 of the back plate 30 through the through hole 34 formed in the spacer 31, and the fixing bolt 14 is tightened to sandwich the lip of the column 3 and the spacer 31 between the back plate 30 and one end 12 of the mounting bracket 10, thereby fixing the mounting bracket 10 to the column 3. Depending on the dimensions of the column 3, the mounting bracket 10 may be fixed directly to the column 3 without placing the spacer 31, as shown in FIG. 6. Depending on the dimensions of the column 3, the spacer 31 may be changed to one with a different thickness. The mounting position of the mounting bracket 10 can be adjusted by adjusting the thickness of the spacer 31 or by not providing the spacer 31, and the adjustment can be made by having the insertion hole 13 formed in one end 12 of the mounting bracket 10 be a horizontally long hole.

[0041] Then, the mounting bolt 24 is inserted into the mounting hole 25 provided in the base 21 of the pressing metal fitting 20, and the pressing metal fitting 20 is fixed to the other end 15 of the mounting bracket 10. Next, as shown in Fig. 12, one of the new exterior wall panels 4a is placed at the position where the existing exterior wall panel 50 was removed, and a tool such as a wrench (not shown) is inserted through the joint formed between the side portion of one of the exterior wall panels 4a and the sash inside corner cover 53, and the first pressing piece 22 of the pressing metal fitting 20 is rotated and operated so as to abut against the outdoor side of the first frame portion 40 of one of the new exterior wall panels 4a, thereby pressing the first frame portion 40 against the inside corner stop plate 6 and fixing the new exterior wall panel 4a.

[0042] 2, an inside corner insulation material 8 is provided so as to abut against the inside corner stop plate 6 at the back of the joint between the side portion of one of the newly installed exterior wall panels 4a and the sash inside corner cover 53, and a joint backup material 9 is placed on the outdoor side of the inside corner insulation material 8. Then, a joint material 7 is filled between the side portion of the exterior wall panel 4a and the sash inside corner cover 53, completing the inside corner reform method of this embodiment. According to this inside corner reform method, the joint width can be adjusted by fixing the sash inside corner cover 53 to the end of the window sash 5, so that the joint material 7 can be filled between the side portion of one of the newly installed exterior wall panels 4a and the sash inside corner cover 53 to achieve an appropriate joint fit.

[0043] Second Embodiment Next, an inside corner exterior wall mounting bracket 1 according to a second embodiment of the present invention, an inside corner exterior wall structure 2 using the inside corner exterior wall mounting bracket 1, and a second embodiment of a method for remodeling an inside corner for constructing the inside corner exterior wall structure 2 will be described with reference to Figures 13 to 16. Note that the same components as those in the first embodiment are given the same reference numerals and will not be described. The inside corner exterior wall structure 2 in this embodiment is a structure in which new exterior wall panels 4b, 4c are installed using an existing framework, and an inside corner is formed by butting one exterior wall panel 4b against the other exterior wall panel 4c.

[0044] As shown in Fig. 13, the exterior wall structure 2 of the inside corner portion includes a column 3 formed in the wall of the inside corner portion, an inside corner stop plate 6 fixed to the column 3 and arranged on the indoor side of the inside corner, an inside corner exterior wall mounting bracket 1 for mounting exterior wall panels 4b and 4c to the inside corner portion, one exterior wall panel 4b having a groove-shaped first frame portion 40 opening laterally at its side end, and the other exterior wall panel 4c having a groove-shaped second frame portion 43 opening laterally at its side end. In Fig. 13, for the convenience of illustrating the inside corner exterior wall mounting bracket 1, the description of the joint material 7, the inside corner insulation material 8, and the joint backup material 9 described later is omitted. The column 3 and the inside corner stop plate 6 have the same configuration as in the first embodiment, so a detailed description is omitted. In addition, the inside corner exterior wall mounting bracket 1 has a mounting bracket 10 and a pressing bracket 20, as in the first embodiment. As in the first embodiment, the fixing bolt 14 is inserted into the insertion hole 13 formed in one end 12 of the mounting bracket 10 and the through hole 34 formed in the spacer 31 and screwed into the screw hole 32 of the back plate 30. By tightening the fixing bolt 14, the lip of the pillar 3 and the spacer 31 are clamped between the back plate 30 and one end 12 of the mounting bracket 10, and the mounting bracket 10 is fixed to the pillar 3.

[0045] The shapes of the mounting bracket 10, the back plate 30, and the spacer 31 are the same as those in the first embodiment. The insertion hole 13 provided at the center of one end 12 of the mounting bracket 10 is a horizontally long hole, and the mounting position of the mounting bracket 10 can be adjusted by shifting it in the out-of-plane direction of one of the exterior wall panels 4b. By preparing a plurality of spacers 31 of different thicknesses or not using the spacer 31, the mounting position of the mounting bracket 10 can also be adjusted by shifting it in the in-plane direction of one of the exterior wall panels 4b. This makes it possible to fix one of the exterior wall panels 4b by adjusting the position of the mounting bracket 10 according to the different specifications, even if the specifications of the recessed corner differ depending on the year the building was constructed.

[0046] Similarly to the first embodiment, the other end 15 of the mounting bracket 10 is disposed at the back of the joint of the inside corner, and a pressing metal fitting 20 is fixed thereto. Similarly to the first embodiment, the pressing metal fitting 20 has a base 21 that is fastened and fixed to the outdoor side of the other end 15 of the mounting bracket 10, and a first pressing piece 22 and a second pressing piece 23 that are rotatably fixed to the base 21.

[0047] One exterior wall panel 4b and the other exterior wall panel 4c of the inside corner are new exterior wall panels 4b, 4c that were newly installed by removing the existing exterior wall panel 50. One exterior wall panel 4b and the other exterior wall panel 4c have the same configuration, and one exterior wall panel 4b has a panel body 41, a first frame portion 40 formed on the periphery of the back surface of the panel body 41, and a heat insulating material 42 provided inside the first frame portion 40 on the back surface side of the panel body 41, while the other exterior wall panel 4c has a panel body 41, a second frame portion 43 formed on the periphery of the back surface of the panel body 41, and a heat insulating material 42 provided inside the second frame portion 43 on the back surface side of the panel body 41. The first frame portion 40 and the second frame portion 43 are groove-shaped and open toward the outside in the in-plane direction of each exterior wall panel 4b, 4c, with one side panel fixed to the panel body 41 and the other side panel pressed against the inside corner stop plate 6 toward the interior by the first pressing piece 22 or the second pressing piece 23.

[0048] In this way, the first frame portion 40 of one exterior wall panel 4b is pressed against the corner stop plate 6 toward the interior by the first pressing piece 22 of the pressing fitting 20, and the second frame portion 43 of the other exterior wall panel 4c is pressed against the corner stop plate 6 toward the interior by the second pressing piece 23 of the pressing fitting 20. As a result, the exterior wall panels on both sides 4b, 4c can be fixed by a single pressing fitting 20, improving workability.

[0049] At the back of the joint of the inside corner formed by the side part of one exterior wall panel 4b and the side part of the other exterior wall panel 4c, as shown in Fig. 14, a plate-shaped inside corner insulation material 8 is provided so as to abut against the inside corner stop plate 6, and a joint backup material 9 is arranged on the outdoor side of the inside corner insulation material 8, with an L-shaped cross section, over the entire vertical length of one exterior wall panel 4b and the other exterior wall panel 4c. Then, for example, a wet joint material 7 or a dry joint material is filled between the side parts of the two exterior wall panels 4b and 4c. Note that in Fig. 14, the illustration of the inside corner exterior wall mounting bracket 1 is partially omitted for the convenience of illustrating the joint material 7, the inside corner insulation material 8, and the joint backup material 9.

[0050] Next, a method for remodeling an inside corner by constructing the exterior wall structure 2 of the inside corner of the second embodiment configured as described above will be described. The method for remodeling an inside corner of this embodiment is a method for remodeling an inside corner in which existing exterior wall panels 50 are formed on both sides as shown in Fig. 15, and is a method for replacing both existing exterior wall panels 50 with new exterior wall panels 4b, 4c, respectively.

[0051] The method of reforming an inside corner is to first remove one of the existing exterior wall panels 50 that form the inside corner, as shown in Fig. 16. Then, the other existing exterior wall panel 50 that forms the inside corner is also removed. Specifically, the dry joint material 57 fixed to the inside corner is removed, the exterior wall fixing plates 56 that fix the existing exterior wall panels 50 on both sides are removed, and the existing exterior wall panels 50 on both sides are removed.

[0052] Then, a hole into which the mounting bracket 10 can be inserted is machined in the inside corner stop plate 6. The mounting bracket 10 is inserted into the hole, and is positioned at an appropriate position so that the other end 15 of the mounting bracket 10 is positioned at the back of the joint of the inside corner. Then, on the indoor side of the inside corner stop plate 6, a back plate 30 is positioned so as to be erected inside the column 3, and a spacer 31 is positioned outside the column 3. A fixing bolt 14 is inserted from an insertion hole 13 formed in the center of one end 12 of the mounting bracket 10, and the fixing bolt 14 is screwed into a screw hole 32 of the back plate 30 through a through hole 34 formed in the spacer 31, and the fixing bolt 14 is tightened to sandwich the lip of the column 3 and the spacer 31 between the back plate 30 and one end 12 of the mounting bracket 10, thereby fixing the mounting bracket 10 to the column 3. As in the first embodiment, depending on the dimensions of the column 3, the mounting bracket 10 may be fixed directly to the column 3 without arranging the spacer 31. Also, the spacer 31 may be changed to one with a different thickness depending on the dimensions of the column body 3. The mounting position of the mounting bracket 10 can be adjusted by changing the thickness of the spacer 31 or by not providing the spacer 31, and this can be adjusted by forming the insertion hole 13 formed in one end portion 12 of the mounting bracket 10 as a long hole that is long in the horizontal direction.

[0053] Then, the mounting bolt 24 is inserted into the mounting hole 25 provided in the base 21 of the clamping metal fitting 20, and the clamping metal fitting 20 is fixed to the other end 15 of the mounting bracket 10. Next, as shown in Fig. 13, one new exterior wall panel 4b is placed at the position where one existing exterior wall panel 50 was removed, and the other new exterior wall panel 4c is placed at the position where the other existing exterior wall panel 50 was removed. Then, a tool such as a wrench (not shown) is inserted through a joint formed between the side portion of one exterior wall panel 4b and the side portion of the other exterior wall panel 4c, and the first clamping piece 22 of the clamping metal fitting 20 is rotated and operated so as to abut against the outdoor side of the first frame portion 40 of one new exterior wall panel 4b, and the first frame portion 40 is pressed against the inside corner stop plate 6 to fix one new exterior wall panel 4b. Similarly, a tool such as a wrench (not shown) is inserted through the joint formed between the side portion of one exterior wall panel 4b and the side portion of the other exterior wall panel 4c, and the second pressing piece 23 of the pressing fitting 20 is rotated and operated so that it abuts against the outdoor side of the second frame portion 43 of the other newly-installed exterior wall panel 4c, thereby pressing the second frame portion 43 against the inside corner stop plate 6 to fix the other newly-installed exterior wall panel 4c.

[0054] Then, as shown in Fig. 14, an inside corner insulation material 8 is provided in the back of the joint between the side portion of one newly installed exterior wall panel 4b and the side portion of the other newly installed exterior wall panel 4c so as to abut against the inside corner stop plate 6, and a joint backup material 9 is placed on the outdoor side of the inside corner insulation material 8. Then, joint material 7 is filled between the side portions of both exterior wall panels 4b and 4c, completing the inside corner reform method of the second embodiment. According to this inside corner reform method, one exterior wall panel 4b and the other exterior wall panel 4c are respectively fixed by one inside corner exterior wall mounting bracket 1, thereby improving workability.

[0055] It goes without saying that the embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the scope of the concept of the present invention. [Industrial Applicability]

[0056] The inside corner exterior wall mounting bracket 1, the inside corner exterior wall structure 2, and the inside corner remodeling method of the present invention are suitably used when replacing and remodeling the exterior wall of an inside corner of a house. [Explanation of symbols]

[0057] 1 Corner exterior wall mounting bracket 2 Exterior wall structure of inside corner 3 pillars 4a One of the exterior wall panels 4b One exterior wall panel 4c The other exterior wall panel 5 Window sash 7 Joint material 10 Mounting bracket 12 One end 13 Insertion hole 14 Fixing bolt 15 Other end 20 Clamp 22 First clamp piece 23 Second presser piece 30 Back plate 31 Spacer 40 First Frame 43 Second Frame 53 Sash inside corner cover

Claims

1. An exterior wall mounting fixture for an inside corner formed by butting together an exterior wall panel having a first frame portion at a side end and another exterior wall panel or a window sash disposed at a right angle to the exterior wall panel, a mounting bracket having one end fixed to a column formed in the wall of the recessed corner portion and the other end disposed deep in a joint formed in the recessed corner portion; an exterior wall mounting bracket for a recessed corner, comprising: a clamping bracket having: a first clamping piece that is rotatably attached to the other end of the mounting bracket toward one of the exterior wall panels and presses the first frame portion toward the interior of the room; and a second clamping piece that is rotatably attached to the other end of the mounting bracket in the opposite direction to the first clamping piece.

2. An exterior wall structure of an inside corner in which one exterior wall panel having a first frame portion at a side end and another exterior wall panel or window sash arranged at a right angle to the one exterior wall panel are butted against each other, A pillar formed in the wall of the inside corner portion; A mounting bracket having one end fixed to the column and the other end disposed deep inside a joint formed in the recessed corner portion; a first pressing piece that is rotatably attached to the other end of the mounting bracket toward the one of the exterior wall panels and presses the first frame portion toward the interior of the room, and a second pressing piece that is rotatably attached to the other end of the mounting bracket in the opposite direction to the first pressing piece; An exterior wall structure for an inside corner comprising:

3. The column is a lip channel steel arranged to open toward the one exterior wall panel, A flat back plate is inserted into the column and spans between the lips of the column; a spacer held between the lips of the pillar on an exterior of the pillar; The mounting bracket has one end disposed on the opposite side of the back plate with the spacer therebetween, The exterior wall structure of the recessed corner portion as described in claim 2, characterized in that the mounting bracket is fixed by clamping the lip and the spacer between the back plate and the one end portion using a fixing bolt that is inserted into an insertion hole formed in the one end portion and screwed into a screw hole formed in the back plate.

4. 4. The exterior wall structure of claim 3, wherein the insertion hole is a long hole that is elongated in the horizontal direction.

5. An exterior wall structure of an inside corner where the one exterior wall panel and the other exterior wall panel are butted against each other, The other exterior wall panel has a second frame portion at a side end portion, 5. The exterior wall structure of claim 2, wherein the second pressing piece presses the second frame portion toward the interior of the building.

6. An exterior wall structure of an inside corner where the one exterior wall panel and the window sash are butted against each other, An exterior wall panel side portion formed at an end portion of the one exterior wall panel and serving as a side surface of the joint of the inside corner portion; A sash inside corner cover that is fixed to an end portion of the window sash and approaches a side portion of the exterior wall panel to adjust a joint width of the inside corner portion; A joint material is filled between the side surface of the exterior wall panel and the sash inside corner cover; The exterior wall structure of an inside corner portion according to any one of claims 2 to 4, further comprising:

7. A method for remodeling an inside corner portion by constructing the exterior wall structure of the inside corner portion according to claim 5, A step of removing one of the existing exterior wall panels that forms the inside corner portion; A step of removing the other existing exterior wall panel that forms the inside corner portion; fixing the one end of the mounting bracket to the pillar; a step of fixing the pressing metal fitting to the other end of the mounting bracket; a step of placing one new exterior wall panel at a position from which the one existing exterior wall panel was removed; a step of placing the other newly installed exterior wall panel at the position from which the other existing exterior wall panel was removed; a step of inserting a tool through the joint formed in the inside corner portion, and manipulating the first pressing piece of the pressing fitting so as to abut against the outdoor side of the first frame portion of the one newly-installed exterior wall panel, and manipulating the second pressing piece so as to abut against the outdoor side of the second frame portion of the other newly-installed exterior wall panel; A method for renovating an inside corner, comprising the steps of: filling a gap between a side portion of one of the newly installed exterior wall panels and a side portion of the other of the newly installed exterior wall panels with a joint material.

8. A method for remodeling an inside corner portion by constructing the exterior wall structure of the inside corner portion according to claim 6, A step of removing one of the existing exterior wall panels that forms the inside corner portion; fastening a sash inside corner cover to an edge of the window sash; fixing the one end of the mounting bracket to the pillar; a step of fixing the pressing metal fitting to the other end of the mounting bracket; a step of placing one new exterior wall panel at a position from which the one existing exterior wall panel was removed; a step of inserting a tool through the joint formed in the inside corner portion and manipulating the first pressing piece of the pressing fitting so as to abut against the outdoor side of the first frame portion of the newly installed exterior wall panel; A method for renovating an inside corner, comprising the step of filling a gap between a side portion of one of the newly installed exterior wall panels and the sash inside corner cover with joint material.

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