Construction method of building wall structure, bracket and plate material

Abstract

To provide a wall structure of a building, a bracket, and a method for constructing a plate material, which can be constructed easily and quickly and can stably support the plate material. [Solution] A bracket (100) has a first portion (110), a second portion (120), a first side wall portion (101) that extends continuously from at least a portion of one side edge (111) of the first portion (110) to at least a portion of one side edge (121) of the second portion (120) and protrudes toward the narrow angle α1, a second side wall portion (102) that extends continuously from at least a portion of the other side edge (112) of the first portion (110) to at least a portion of the other side edge (122) of the second portion (120) and protrudes toward the narrow angle α1, and a mounting portion (125) provided on the second portion (120). The bracket (100) also has a main elongated hole (150) that extends away from a fixing portion (115) and at least one main round hole (160) in a direction intersecting the longitudinal direction of the main elongated hole (150).

Description

Technical Field

[0001] The present invention relates to a wall structure of a building, a bracket, and a construction method of a plate material.

Background Art

[0002] Patent Documents 1 to 3 disclose conventional wall structures of buildings. In the wall structure disclosed in Patent Document 1, a plurality of bracket base materials extending in the left - right direction are arranged on the wall surface of the structure. A plurality of brackets are fixed to the bracket base materials. And a plurality of vertical barrel edges extending in the up - down direction along the wall surface are arranged across the plurality of brackets. Further, a plurality of plate materials are attached to the vertical barrel edges so that the plate materials cover the wall surface. In such a wall structure, when unevenness occurs on the wall surface, it is necessary to take measures to prevent unevenness between the plate materials attached to the structure.

[0003] In this regard, in the wall structure disclosed in Patent Document 2, bolt fixing holes are provided through the mounting portion of the base member, and long holes are provided through the sliding portion of the slide member. And when inserting a male screw through the bolt fixing hole and the long hole and screwing it into the nut for fixing the slide member, the sliding portion can be shifted with respect to the mounting portion to adjust the unevenness of the wall surface.

[0004] Also, in the wall structure disclosed in Patent Document 3, bolt fixing holes are provided through the standing portion of the first bracket member, and long holes are provided through the sliding portion of the second bracket member. And when inserting a bolt through the bolt fixing hole and the long hole and screwing it into the nut, the sliding portion can be shifted with respect to the standing portion to adjust the unevenness of the wall surface.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the wall structures disclosed in Patent Documents 2 and 3, the structure for adjusting the relative positions with elongated holes by combining a plurality of members is complicated and there are many construction steps during construction, so the construction is troublesome. In addition, there is a possibility that play may occur between a plurality of members, and in that case, there is a risk that the plate material cannot be stably supported.

[0007] The present invention has been made in view of the above-described conventional circumstances, and an object to be solved is to provide a wall structure of a building, a bracket, and a construction method of a plate material that are easy and quick to construct and can stably support the plate material.

Means for Solving the Problems

[0008] The wall structure of a building according to the first aspect of the present invention is a plurality of brackets arranged on a wall surface of a building, a plurality of first supports extending in a first direction along the wall surface and arranged across at least two of the brackets, a fastening member for fastening the bracket and the first support, a wall structure of a building including a plurality of plate materials that are directly or indirectly attached on the side opposite to the wall surface in at least two of the first supports and cover the wall surface, the bracket is a first portion including a fixing portion that can be fixed to the wall surface, a second portion that bends substantially at a right angle from the first portion and extends so as to move away from the fixing portion, a first side wall portion that continuously extends without a seam from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion and projects toward the narrow angle side of the angle formed by the first portion and the second portion, continuously extending without a break from at least a part of the other side edge of the first part to at least a part of the other side edge of the second part, and having a second side wall portion protruding toward the narrow angle side; a placement portion provided on the second part and including a placement surface facing the side opposite to the first side wall portion and the second side wall portion; a main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the placement portion and extending away from the fixing portion; in a direction intersecting the longitudinal direction of the main elongated hole, at a position away from the main elongated hole in the placement portion and at least one main round hole formed at a position closer to the first side wall portion than the second side wall portion, and comprising; the first support body, a first joint portion placed on the placement surface; including a second joint portion that is connected to the first joint portion on the side opposite to the wall surface and on which the plate material is directly or indirectly disposed; the fastening member includes a first drill screw that fastens the placement portion and the first joint portion via the main elongated hole and the main round hole.

[0009] In the wall structure of the building according to the first aspect of the present invention, a highly rigid bracket having first and second side wall portions continuously extending from at least a part of both side edges of the first part to at least a part of both side edges of the second part is used. Therefore, when placing the first joint portion of the first support body on the placement surface, the unevenness of the wall surface of the structure can be adjusted, and at that position, the placement portion of the bracket and the first joint portion of the first support body can be fastened using the first drill screw.

[0010] That is, even when a large load acts on the bracket when the first drill screw fastens the placement portion and the first joint portion, the bracket reinforced by the first and second side wall portions can withstand the load. Therefore, in this wall structure, the unevenness adjustment of the wall surface and the arrangement of the first support body can be carried out in the same process, so the construction is easy and fast.

[0011] In addition, in this wall structure, due to the simple fastening configuration, play is less likely to occur between the bracket and the first support. Furthermore, deformation caused by the bracket supporting the weight of the plate material over a long period can be suppressed by the first and second side wall portions.

[0012] Therefore, according to the wall structure of the building of the first aspect of the present invention, construction is easy and fast, and the plate material can be stably supported.

[0013] Here, the configuration of "the plate material is directly attached on the side opposite to the wall surface of at least two first supports, and the plate material is directly disposed at the second joint portion of the first support" specifically means that the plate material is disposed at the second joint portion without intervening another support different from the first support and is directly attached to the first support by a fastening member such as a screw or a fixture. According to this configuration, by not using another support different from the first support for attaching the plate material, reduction in the number of parts and simplification of the work by reducing the number of processes can be achieved.

[0014] On the other hand, the configuration of "the plate material is indirectly attached on the side opposite to the wall surface of at least two first supports, and the plate material is indirectly disposed at the second joint portion of the first support" specifically means that the plate material is disposed at the second joint portion with another support different from the first support intervening therebetween, the other support is attached to the first support by a fastening member such as a screw, and further, the plate material is attached to the other support by a fastening member such as a screw or a fixture. The other support is at least one. According to this configuration, by using another support different from the first support, unevenness adjustment of the wall surface can be more suitably carried out, and the plate material can be more stably supported.

[0015] Also, in the first aspect of the present invention, a main long hole extending away from the fixing portion is provided in the placement portion.

[0016] Therefore, when fastening the placement portion of the bracket and the first joint portion of the first support, after inserting the first drill screw into the main elongated hole of the placement portion, and then slightly screwing it into the first joint portion, the first support can be temporarily fixed to the placement portion. And in that state, after shifting and positioning the first support in a direction away from the fixing portion or the opposite direction, by completely screwing the first drill screw into the first joint portion, the placement portion and the first joint portion can be securely fastened. As a result, the positioning of the first support for unevenness adjustment of the wall surface can be accurately and easily performed, and the simplification of the work can be realized.

[0017] Furthermore, in the first aspect of the present invention, the placement portion is provided with at least one main round hole disposed at a position away from the main elongated hole in a direction intersecting the longitudinal direction of the main elongated hole.

[0018] Therefore, after inserting the first drill screw into the main elongated hole of the placement portion, performing the positioning adjustment of the first support, and then securely fastening the placement portion and the first joint portion, by inserting another first drill screw into the main round hole of the placement portion and screwing it into the first joint portion, the placement portion and the first joint portion can be fastened more securely. At this time, since another first drill screw does not need to make a pilot hole in the placement portion, the fastening work by another first drill screw can be easily performed.

[0019] As a second aspect of the present invention, an extension member is provided between the placement portion of the bracket and the first joint portion of the first support, the extension member includes an extended placement portion placed on the placement surface, extending away from the first portion, and having an extended placement surface facing the same side as the placement surface, a first extended side wall portion protruding from one side edge of the extended placement portion in the same direction as the first side wall portion and adjacent to the first side wall portion, a second extended side wall portion protruding from the other side edge of the extended placement portion in the same direction as the second side wall portion and adjacent to the second side wall portion, the extended placement portion is provided with an auxiliary elongated hole extending away from the first portion, At least one auxiliary round hole disposed at a position away from the auxiliary long hole in a direction intersecting the longitudinal direction of the auxiliary long hole, When the extension member is placed on the placement surface, The auxiliary long hole and the auxiliary round hole are respectively disposed at positions offset from the main long hole and the main round hole. The fastening member A second drill screw that fastens the placement portion and the extension placement portion through the main long hole and the main round hole, A third drill screw that fastens the extension placement portion and the first joint portion through the auxiliary long hole and the auxiliary round hole, It is desirable to include.

[0020] In this case, even when the unevenness of the wall surface is large, after adjusting the unevenness using the extension member, the bracket and the first support can be fastened. Therefore, it is possible to surely realize arranging the first support straight in the first direction, and as a result, the plate material can be arranged on the structure with high accuracy. Also, when the first and second extension side wall portions sandwich the first and second side wall portions, when the extension member slides in a direction approaching or separating from the wall surface, and when the second drill screw fastens the placement portion and the extension placement portion, lateral displacement of the extension member with respect to the placement portion can be suppressed. Further, even when a large load acts on the extension member when the second drill screw fastens the placement portion and the extension placement portion, the extension member reinforced by the first and second extension side wall portions can withstand the load. Also, even when a large load acts on the extension member when the third drill screw fastens the extension placement portion and the first joint portion, the extension member reinforced by the first and second extension side wall portions can withstand the load. As a result, the extension member and the second and third drill screws can easily and firmly fasten the first support to the bracket while adjusting the unevenness of the wall surface.

[0021] Also, in the second aspect of the present invention, the extension placement portion is provided with an auxiliary long hole extending so as to be away from the first portion.

[0022] Therefore, when fastening the extension placement portion of the extension member and the first joint portion of the first support, after inserting the third drill screw into the auxiliary long hole of the extension placement portion, and then slightly screwing it into the first joint portion, the first support can be temporarily fixed to the extension placement portion. And in that state, after shifting and positioning the first support in the direction away from the first portion or the opposite direction, by completely screwing the third drill screw into the first joint portion, the extension placement portion and the first joint portion can be securely fastened. As a result, the positioning of the first support for unevenness adjustment of the wall surface can be accurately and easily performed, and simplification of the work can be achieved.

[0023] Furthermore, in the second aspect of the present invention, the extension placement portion is provided with at least one auxiliary round hole disposed at a position away from the auxiliary long hole in a direction intersecting the longitudinal direction of the auxiliary long hole.

[0024] Therefore, after inserting the third drill screw into the auxiliary long hole of the extension placement portion, performing the positioning adjustment of the first support, and then securely fastening the extension placement portion and the first joint portion, by inserting another third drill screw into the auxiliary round hole of the extension placement portion and screwing it into the first joint portion, the extension placement portion and the first joint portion can be fastened more securely. At this time, since another third drill screw does not need to drill a pilot hole in the extension placement portion, the fastening work by another third drill screw can be easily performed. Since it is not necessary to drill a pilot hole in the extension placement portion, the fastening work by another third drill screw can be easily performed.

[0025] Furthermore, in the second aspect of the present invention, the auxiliary long hole and the auxiliary round hole are respectively disposed at positions shifted with respect to the main long hole and the main round hole.

[0026] Therefore, when fastening the mounting portion of the bracket and the extended mounting portion of the extension member, after inserting the second drill screw into the main elongated hole of the mounting portion, and then slightly screwing it into the extended mounting portion, the extension member can be temporarily fixed to the mounting portion. Then, in this state, after shifting and positioning the extension member in the direction away from the first portion or the opposite direction, by completely screwing the second drill screw into the extended mounting portion, the mounting portion and the extended mounting portion can be securely fastened. After that, by inserting another second drill screw into the main round hole of the mounting portion and screwing it into the extended mounting portion, the mounting portion and the extended mounting portion can be fastened more securely. At this time, since another second drill screw does not need to drill a pilot hole in the mounting portion, the fastening operation with another second drill screw can be easily performed. The fastening operation utilizing the auxiliary elongated hole and the auxiliary round hole by the third drill screw is as described above. At this time, since the auxiliary elongated hole and the auxiliary round hole are arranged at positions shifted from the main elongated hole, and the auxiliary elongated hole and the auxiliary round hole are arranged at positions shifted from the main round hole, they do not inhibit each other's effects. As a result, the positioning of the first support for unevenness adjustment of the wall surface can be performed more accurately and easily, and further simplification of the work can be realized.

[0027] Also, in this case, when the first support extends horizontally, that is, when the first direction is the horizontal direction, considering the ease of work, the following work procedure can also be adopted. That is, when fastening the mounting portion of the bracket and the extended mounting portion of the extension member that overlaps the mounting portion from above, after inserting the second drill screw into the auxiliary elongated hole of the extended mounting portion, and then slightly screwing it into the mounting portion, the extension member can be temporarily fixed to the mounting portion. Then, in this state, after shifting and positioning the extension member in the direction away from the first portion or the opposite direction, by completely screwing the second drill screw into the mounting portion, the mounting portion and the extended mounting portion can be securely fastened. After that, by inserting another second drill screw into the auxiliary round hole of the extended mounting portion and screwing it into the mounting portion, the mounting portion and the extended mounting portion can be fastened more securely.

[0028] The bracket according to the third aspect of the present invention a first portion including a fixing portion that can be fixed to the wall surface of a building, A second portion that bends from the first portion at a substantially right angle and extends away from the fixing portion; A first side wall portion that extends continuously without a seam from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion, and projects toward the narrow angle side of the angle formed by the first portion and the second portion; A second side wall portion that extends continuously without a seam from at least a part of the other side edge of the first portion to at least a part of the other side edge of the second portion, and projects toward the narrow angle side; A placement portion provided on the second portion and including a placement surface facing the opposite side of the first side wall portion and the second side wall portion; A main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the placement portion and extending away from the fixing portion; In a direction intersecting the longitudinal direction of the main elongated hole, At a position away from the main elongated hole in the placement portion and At least one main round hole formed at a position closer to the first side wall portion than the second side wall portion.

[0029] According to the bracket of the third aspect of the present invention, the same operational effects as those of the wall structure of the building of the first aspect of the present invention can be achieved.

[0030] As a fourth aspect of the present invention, The bracket has an extension member, The extension member An extension placement portion that is placed on the placement surface, extends away from the first portion, and includes an extension placement surface facing the same side as the placement surface; A first extension side wall portion that projects in the same direction as the first side wall portion from one side edge of the extension placement portion and is adjacent to the first side wall portion; A second extension side wall portion that projects in the same direction as the second side wall portion from the other side edge of the extension placement portion and is adjacent to the second side wall portion; An auxiliary elongated hole formed in the extension placement portion and extending away from the first portion. When the extension member is placed on the placement surface, the auxiliary long hole is preferably arranged at a position shifted with respect to the main long hole and the main round hole.

[0031] In this case, the same operational effects as those in the case where the extension placement portion in the second aspect of the present invention is provided with the auxiliary long hole can be achieved.

[0032] As a fifth aspect of the present invention, the bracket has an extension member, the extension member includes: an extension placement portion that is placed on the placement surface, extends away from the first portion, and includes an extension placement surface facing the same side as the placement surface; a first extension side wall portion that protrudes from one side edge of the extension placement portion in the same direction as the first side wall portion and is adjacent to the first side wall portion; a second extension side wall portion that protrudes from the other side edge of the extension placement portion in the same direction as the second side wall portion and is adjacent to the second side wall portion; and an auxiliary round hole formed in the extension placement portion. When the extension member is placed on the placement surface, the auxiliary round hole is preferably arranged at a position shifted with respect to the main long hole and the main round hole.

[0033] In this case, the same operational effects as those in the case where the extension placement portion in the second aspect of the present invention is provided with the auxiliary round hole can be achieved.

[0034] The construction method of the plate material according to the sixth aspect of the present invention is a construction method of attaching a plate material to a wall surface of a building using a bracket, a first support, and a fastening member, including a first step of arranging a plurality of the brackets on the wall surface; a second step of extending a plurality of the first supports in a first direction along the wall surface and arranging them in a state spanning at least two of the brackets; A third step of fastening the bracket and the first support by the fastening member; A fourth step of attaching a plurality of the plate materials directly or indirectly on the side opposite to the wall surface of at least two of the first supports so as to cover the wall surface; The bracket includes: A first portion including a fixing portion that can be fixed to the wall surface; A second portion that bends substantially at a right angle from the first portion and extends away from the fixing portion; A first side wall portion that extends continuously without a seam from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion and projects toward the narrow angle side of the angle formed by the first portion and the second portion; A second side wall portion that extends continuously without a seam from at least a part of the other side edge of the first portion to at least a part of the other side edge of the second portion and projects toward the narrow angle side; A placement portion provided on the second portion and including a placement surface facing the side opposite to the first side wall portion and the second side wall portion; A main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the placement portion and extending away from the fixing portion; In a direction intersecting the longitudinal direction of the main elongated hole, At a position away from the main elongated hole in the placement portion and At least one main round hole formed at a position closer to the first side wall portion than the second side wall portion; The first support includes: A first joint portion placed on the placement surface in the second step; A second joint portion that is connected to the first joint portion on the side opposite to the wall surface and on which the plate material is directly or indirectly disposed in the fourth step; The fastening member includes a first drill screw that fastens the placement portion and the first joint portion through the main elongated hole and the main round hole in the third step.

[0035] According to the method for constructing a plate material according to the sixth aspect of the present invention, similar to the wall structure of the building according to the first aspect of the present invention, the construction is easy and fast, and the plate material can be stably supported.

[0036] Also, in the sixth aspect of the present invention, a main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the placement portion and extending away from the fixing portion, and in a direction intersecting the longitudinal direction of the main elongated hole, at a position away from the main elongated hole in the placement portion and at least one main round hole formed at a position closer to the first side wall portion than the second side wall portion, are provided.

[0037] Therefore, the same operational effects as those of the main elongated hole and the main round hole of the wall structure of the building according to the first aspect of the present invention can be achieved.

[0038] As the seventh aspect of the present invention, in the second step, an extension member is disposed between the placement portion of the bracket and the first joint portion of the first support, the extension member includes an extension placement portion that is placed on the placement surface, extends away from the first portion, and faces the same side as the placement surface, a first extension side wall portion that protrudes from one side edge of the extension placement portion in the same direction as the first side wall portion and is adjacent to the first side wall portion, and a second extension side wall portion that protrudes from the other side edge of the extension placement portion in the same direction as the second side wall portion and is adjacent to the second side wall portion, the extension placement portion has an auxiliary elongated hole that extends away from the first portion, and at least one auxiliary round hole disposed at a position away from the auxiliary elongated hole in a direction intersecting the longitudinal direction of the auxiliary elongated hole, when the extension member is placed on the placement surface, the auxiliary elongated hole and the auxiliary round hole are respectively disposed at positions shifted from the main elongated hole and the main round hole, in the third step, the fastening member With the second drill screw, through the main elongated hole and the main round hole, fasten the placement portion and the extension placement portion, With the third drill screw, through the auxiliary elongated hole and the auxiliary round hole, fasten the extension placement portion and the first joint portion is desirable.

[0039] In this case, similar to the wall structure of the building according to the second aspect of the present invention, the first support can be easily and firmly fastened to the bracket while adjusting the unevenness of the wall surface by the extension member and the second and third drill screws.

[0040] Also, in the seventh aspect of the present invention, on the extension placement portion, the extension placement portion has an auxiliary elongated hole extending away from the first portion, and at least one auxiliary round hole disposed at a position away from the auxiliary elongated hole in a direction intersecting the longitudinal direction of the auxiliary elongated hole.

[0041] Therefore, it is possible to achieve the same effects as the auxiliary elongated hole and the auxiliary round hole of the wall structure of the building according to the second aspect of the present invention.

Effect of the Invention

[0042] In the wall structure of the building, the bracket, and the construction method of the plate material according to the present invention, the construction is easy and fast, and the plate material can be stably supported.

Brief Description of the Drawings

[0043]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Figure 23

Figure 24

Figure 25

Embodiments for Carrying Out the Invention

[0044] Hereinafter, Embodiments 1 to 6 embodying the present invention will be described with reference to the drawings. In FIG. 1, the vertically upward direction is indicated as up, and the vertically downward direction is indicated as down. Also, in the direction from the outside to the inside of the house in FIG. 1, the horizontally left direction is indicated as left, and the horizontally right direction is indicated as right. And the respective directions shown in each figure after FIG. 2 are indicated corresponding to FIG. 1.

[0045] (Embodiment 1) As shown in FIG. 1, the wall structure of Embodiment 1 is an example of a specific aspect of a building wall structure. This wall structure is formed by attaching a plurality of outer wall plates 2 to a structure 8 that constitutes a building such as a house, a facility, or a warehouse. The structure 8 may constitute a newly constructed building or a previously constructed building on which exterior reform work is carried out. The outer wall plate 2 is an example of a plate material. As shown in FIGS. 2 and 3 and the like, the outer wall plate 2 is a plate material that itself has high strength and rigidity and constitutes the outer wall of the building. The outer wall plate 2 may be used for a newly constructed building or may be for reforming to cover the wall surface of a previously constructed building and improve the design. Note that the plate material is not limited to the outer wall plate, and for example, it may be a decorative board for exterior decoration of a building, an indoor structural panel, an interior panel, or the like.

[0046] As shown in FIG. 1, the structure 8 is a strong framework such as a reinforced concrete structure or a brick structure, and mortar 8M is applied to the surface layer on the outdoor side of the framework. The structure 8 has a wall surface 9 facing the outdoor direction. Note that the structure is not limited to this embodiment, and for example, the mortar 8M of the structure 8 may be omitted. Also, the structure may constitute a wooden building constructed by a wooden frame construction method or a wooden framed wall construction method.

[0047] Between the structure 8 and the outer wall plate 2, a bracket 100, a heat insulating material 5, a waterproof sheet 6, a horizontal support 30, a vertical support 40, and a first fixture 50 are arranged. The horizontal support 30 is an example of a first support. The vertical support 40 is an example of a second support.

[0048] As shown in FIGS. 1 and 4, a plurality of brackets 100 are arranged on the wall surface 9 in a state of being spaced apart from each other at a predetermined interval in the vertical direction and the horizontal direction. A spacer 3 shown in FIG. 1 is arranged between the bracket 100 and the wall surface 9 as necessary. The spacer 3 is a substantially rectangular plate with a U-shaped groove cut out. By making the spacer 3 of resin, the thermal bridge between the bracket 100 and the wall surface 9 can be blocked. Further, by selecting the thickness and number of the spacers 3 according to the unevenness of the wall surface 9, the unevenness of the wall surface 9 can be adjusted to some extent.

[0049] As shown in FIGS. 5 to 7, the bracket 100 is manufactured by bending and pressing a metal plate material or the like. For example, the bracket 100 is formed into a three-dimensional shape without performing partial welding by bending and pressing a steel plate material having a thickness of about 2 mm. Note that the material and manufacturing method of the bracket 100 are not limited to the above, and various materials and manufacturing methods can be appropriately selected. Further, when the bracket 100 is processed, the end portions where two separately bent protruding pieces are joined together can be welded to make the protruding pieces continuous.

[0050] In the following description of the shape of the bracket 100, with respect to the vertical direction, the horizontal direction, and the indoor / outdoor direction, the posture of the bracket 100 arranged on the wall surface 9 as shown in FIG. 4 or the like is used as a reference.

[0051] As shown in FIGS. 5 to 7, the bracket 100 has a first portion 110, a second portion 120, a first side wall portion 101, a second side wall portion 102, protruding portions 105, 106, and a placement portion 125.

[0052] The first part 110 is substantially square-shaped, and a round hole 110H is provided through the approximate center thereof. The first part 110 includes a fixing part 115. The fixing part 115 forms a plane surrounding the round hole 110H. As shown in FIG. 4, with the fixing part 115 extending in the vertical and horizontal directions, it is abutted against the wall surface 9, an anchor bolt 100B is inserted through the round hole 110H, and the anchor bolt 100B is further fastened to the wall surface 9. Thereby, the fixing part 115 is fixed to the wall surface 9.

[0053] As shown in FIG. 5, the second part 120 is substantially rectangular-shaped and is connected to the upper edge of the first part 110. The second part 120 bends from the first part 110 toward the outdoor direction and extends so as to be away from the fixing part 115. Let the acute angle among the angles formed by the first part 110 and the second part 120 be α1. The acute angle α1 is set to be approximately a right angle.

[0054] As shown in FIG. 7, the length L120 of the second part 120 in the indoor-outdoor direction is set to be approximately twice the length L110 of the first part 110 in the vertical direction as an example, but the configuration is not limited thereto, and it may be larger or smaller than that length. For example, the length L120 can also be set to be equal to the length L110.

[0055] As shown in FIGS. 5 to 7, the first side wall portion 101 is connected to the entire range of the left edge 111 of the first part 110 and bends substantially at a right angle toward the outdoor direction, and a plate-shaped portion connected to the entire range of the left edge 121 of the second part 120 and bending substantially at a right angle downward are connected to form a substantially L shape. That is, the first side wall portion 101 continuously extends from the lower end of the left edge 111 of the first part 110 to the tip of the left edge 121 of the second part 120 and protrudes toward the acute angle α1 side.

[0056] The second side wall portion 102 is formed by connecting to the entire range of the right edge 112 of the first portion 110 and bending substantially at a right angle toward the outdoor direction, and a plate-like portion that bends substantially at a right angle downward by connecting to the entire range of the right edge 122 of the second portion 120. That is, the second side wall portion 102 continuously extends from the lower end of the right edge 112 of the first portion 110 to the tip of the right edge 122 of the second portion 120, and protrudes toward the narrow angle α1 side.

[0057] As shown in FIG. 5, the corner C1 formed by the first portion 110, the second portion 120, and the first side wall portion 101 is formed seamlessly by press working. The corner C2 formed by the first portion 110, the second portion 120, and the second side wall portion 102 is also formed seamlessly by press working.

[0058] As shown in FIGS. 5 to 7, in the first portion 110, a rib 105A having a U-shaped cross section protrudes toward the outdoor direction between the first side wall portion 101 and the round hole 110H and is formed to extend in the vertical direction. In the second portion 120, a rib 105B having a U-shaped cross section connected to the rib 105A protrudes downward and is formed to extend in the indoor-outdoor direction. The left protrusion 105 is configured by these ribs 105A and 105B.

[0059] In the first portion 110, a rib 106A having a U-shaped cross section protrudes toward the outdoor direction between the second side wall portion 102 and the round hole 110H and is formed to extend in the vertical direction. In the second portion 120, a rib 106B having a U-shaped cross section connected to the rib 106A protrudes downward and is formed to extend in the indoor-outdoor direction. The right protrusion 106 is configured by these ribs 106A and 106B.

[0060] The protrusions 105 and 106 each extend upward from the lower edge of the first portion 110, bend toward the outdoor direction at the upper edge of the first portion 110, and extend toward the outdoor direction and are interrupted at approximately the center of the second portion 120. is interrupted at approximately the center.

[0061] That is, the protrusions 105 and 106 are provided between the first side wall portion 101 and the second side wall portion 102, continuously extend from the lower end edge of the first portion 110 to approximately the center of the second portion 120, and protrude toward the narrow angle α1 side.

[0062] The placement portion 125 is provided on the leading edge side of the second portion 120. The placement portion 125 includes a placement surface 126. The placement surface 126 is surrounded by the leading edge, the left side edge 121, the right side edge 122 of the second portion 120, and the tips of the protrusions 105 and 106, and is a plane facing the side opposite to the first side wall portion 101 and the second side wall portion 102. That is, the placement surface 126 is an upward plane formed in a range farther from the first portion 110 than the tips of the protrusions 105 and 106 in the second portion 120.

[0063] As shown in FIG. 6, the first height H1 at which the protrusions 105 and 106 protrude downward with respect to the placement surface 126 is set to be equal to or less than the second height H2 at which the first side wall portion 101 and the second side wall portion 102 protrude downward with respect to the placement surface 126.

[0064] As shown in FIGS. 1 and 4, the heat insulating material 5 is arranged along the wall surface 9 of the structure 8. The heat insulating material 5 is, for example, a fibrous heat insulating material such as rock wool or glass wool, or a foamed plastic heat insulating material such as foamed polyurethane, foamed phenol, or foamed polystyrene. The heat insulating material 5 is arranged such that the portion interfering with the bracket 100 is removed to expose the leading edge side of the placement portion 125 of the bracket 100. Note that depending on the construction situation of the structure 8 and the like, the heat insulating material 5 can also be omitted.

[0065] The waterproof sheet 6 is laid on the surface of the heat insulating material 5. The waterproof sheet 6 is made of waterproof paper, film, non-woven fabric, etc., and some also have moisture permeability in addition to waterproofness. Note that depending on the construction situation of the structure 8 and the like, the waterproof sheet 6 can also be omitted. The waterproof sheet 6 is arranged such that a cut is formed at a location corresponding to the second portion 120 of the bracket 100 to protrude the leading edge side of the placement portion 125 of the bracket 100.

[0066] As shown in FIGS. 4 and 5, the horizontal support 30 is a long plate material having an L-shaped cross section. The horizontal support 30 includes a first joint portion 31 and a second joint portion 32. The second joint portion 32 is connected to one edge of the flat first joint portion 31 and extends flat in a direction substantially perpendicular to the first joint portion 31. The horizontal support 30 is manufactured, for example, by bending a steel plate material. Note that the material and manufacturing method of the horizontal support 30 are not limited to the above, and various materials including resin, wood, etc. and manufacturing methods can be appropriately selected.

[0067] As shown in FIG. 1, a plurality of horizontal supports 30 are arranged on the wall surface 9 in a state where they are spaced apart from each other at a predetermined interval in the vertical direction on the outdoor side with respect to the waterproof sheet 6 and extend in the horizontal direction along the wall surface 9. The horizontal support 30 is arranged across at least two brackets 100. As shown in FIGS. 4 and 5, the bracket 100 and the horizontal support 30 are fastened by a first drill screw 91. The horizontal direction is an example of the first direction. The first drill screw 91 is an example of a fastening member.

[0068] More specifically, the horizontal support 30 is in a state where the first joint portion 31 is placed on the placement surface 126 of the bracket 100 and the second joint portion 32 is located on the side opposite to the wall surface 9 with respect to the first joint portion 31.

[0069] As the first drill screw 91, a well-known drill screw in which a drill such as a cutting edge portion or a pointed portion is formed at the tip of the screw and the screw itself performs hole drilling, tapping, and tightening is used. Specifically, the first drill screw 91 has a screw portion 91B, a cutting edge portion 91C formed at the tip of the screw portion 91B, and a head portion 91A connected to the base of the screw portion 91B.

[0070] First, the unevenness of the wall surface 9 is adjusted by shifting the position of the first joint portion 31 of the horizontal support 30 placed on the placement surface 126 in the indoor / outdoor direction in accordance with the unevenness of the wall surface 9 of the structure 8. Then, the tip of an electric driver (not shown) is fitted into the groove recessed in the head 91A of the first drill screw 91, thereby holding the first drill screw 91 by the electric driver (not shown). Next, the cutting edge portion 91C of the first drill screw 91 is brought into contact with the first joint portion 31 from above to determine the fastening position. Then, the electric driver (not shown) is operated while applying a downward load F1 to the first drill screw 91. Then, the cutting edge portion 91C rotates while being pressed against the first joint portion 31 and the placement portion 125, discharges cutting chips while cutting the first joint portion 31 and the placement portion 125, and makes a pilot hole in the first joint portion 31 and the placement portion 125. The threaded portion 91B performs tapping by a portion adjacent to the cutting edge portion 91C, and the portion located on the head 91A side rather than that portion performs tightening on the first joint portion 31 and the placement portion 125. The downward load F1 becomes the largest when the cutting edge portion 91C makes a pilot hole in the first joint portion 31 and the placement portion 125.

[0071] In this way, the first drill screw 91 penetrates the placement portion 125 and the first joint portion 31 in the vertical direction perpendicular to the placement surface 126, and fastens the placement portion 125 and the first joint portion 31. Note that a configuration in which a pilot hole is made in advance at a location corresponding to the fastening position of the first joint portion 31 is also included in the present invention.

[0072] As shown in FIGS. 4 and 8, the vertical support 40 is a long plate material having a hat-shaped cross section. The vertical support 40 includes a central plate portion 41 and a pair of side plate portions 42. The pair of side plate portions 42 are connected to both side edges of the flat central plate portion 41 with steps respectively, and extend flatly in a direction away from each other. The vertical support 40 is manufactured, for example, by bending a steel plate material. Note that the material and manufacturing method of the vertical support 40 are not limited to the above, and various materials including resin and wood, and manufacturing methods can be appropriately selected.

[0073] As shown in FIG. 1, a plurality of vertical supports 40 are spaced apart from each other at a predetermined interval in the left - right direction on the outdoor side with respect to the second joint portion 32 of the horizontal support 30, and are arranged on the wall surface 9 in a state of extending in the vertical direction along the wall surface 9. The vertical supports 40 are arranged across at least two horizontal supports 30. Then, as shown in FIGS. 4 and 8, a pair of side plate portions 42 of the vertical support 40 and the second joint portion 32 of the horizontal support 30 are fastened by screws 40B. The vertical direction is an example of the second direction.

[0074] The screws 40B respectively shown in FIG. 4 are also drill screws. When drill screws are not used, before the operation of fastening a pair of side plate portions 42 of the vertical support 40 and the second joint portion 32 of the horizontal support 30 by the screws 40B, it is necessary to drill pilot holes in the side plate portions 42 and the second joint portion 32.

[0075] As shown in FIG. 9, the first fixture 50 includes a first fixing portion 55, a first upper contact portion 56, a first lower contact portion 57, a first supporting portion 51, a first upper locking portion 52, a first lower locking portion 53, and an erected piece 59. The first fixing portion 55 forms a flat surface that can contact the central plate portion 41 of the vertical support 40. The first upper contact portion 56 bulges outward in the outdoor direction so as to be separated from the first fixing portion 55. The first lower contact portion 57 bulges outward in the outdoor direction so as to be separated from the first fixing portion 55 at a position below the first upper contact portion 56. The first supporting portion 51 protrudes outward in the outdoor direction from the first fixing portion 55 between the first upper contact portion 56 and the first lower contact portion 57 and extends in the left - right direction. The first upper locking portion 52 protrudes upward from the tip of the first supporting portion 51. The first lower locking portion 53 protrudes downward from the tip of the first supporting portion 51. The erected piece 59 protrudes outward in the outdoor direction from the first fixing portion 55 below the first lower contact portion 57 and extends in the vertical direction.

[0076] As shown in FIGS. 1 and 4, a plurality of first fixtures 50 are arranged on the wall surface 9 at a predetermined interval in the vertical and horizontal directions on the outdoor side with respect to the central plate portion 41 of the vertical support 40 and are spaced apart from each other. As shown in FIG. 8, the first fixture 50 is in a state where the first fixing portion 55 is in contact with the central plate portion 41 of the vertical support 40 at positions corresponding to four corner portions where the plurality of outer wall plates 2 are joined to each other. And, the first fixing portion 55 of the first fixture 50 and the central plate portion 41 of the vertical support 40 are fastened by a screw 50B. In addition, between each of the first fixtures 50, fixtures having a configuration in which the standing piece 59 is removed from the first fixture 50 are arranged as necessary.

[0077] As shown in FIG. 2, the outer wall plate 2 is a plate material having a quadrilateral shape, more specifically, a substantially rectangular shape that is long in the left - right direction. In the present embodiment, the outer wall plate 2 is made of a ceramic material containing cement. Note that the material and shape of the outer wall plate 2 are not limited to the above. For example, as the material of the outer wall plate 2, a metal - based material, a wood - based material, a resin - based material, etc. can be appropriately selected. Also, as the shape of the outer wall plate 2, a plate material having a quadrilateral shape and a substantially rectangular shape that is long in the vertical direction, etc. can be appropriately selected.

[0078] The surface 2F of the outer wall plate 2 is an exterior surface with a design such as a brick pattern, for example. A front - side left - right joint portion 21 is formed at the left end portion of the outer wall plate 2. A back - side left - right joint portion 22 is formed at the right end portion of the outer wall plate 2. A front - side upper - lower joint portion 23 is formed at the lower end portion of the outer wall plate 2. A back - side upper - lower joint portion 24 is formed at the upper end portion of the outer wall plate 2.

[0079] The front - side upper - lower joint portion 23 is an example of a first butting joint portion of the plate material. The back - side upper - lower joint portion 24 is an example of a second butting joint portion of the plate material. The back - side left - right joint portion 22 is an example of a third butting joint portion of the plate material. The front - side left - right joint portion 21 is an example of a fourth butting joint portion of the plate material. Note that in FIG. 2, the sizes of the front - side left - right joint portion 21, the back - side left - right joint portion 22, the front - side upper - lower joint portion 23, and the back - side upper - lower joint portion 24 are exaggeratedly shown with respect to the size of the outer wall plate 2.

[0080] As shown in FIGS. 2 and 3, the front side left and right joint portion 21 is recessed from the back surface 2B to the front surface 2F of the outer wall plate 2 and extends in the vertical direction, that is, along the left end portion of the outer wall plate 2.

[0081] The back side left and right joint portion 22 is recessed from the front surface 2F to the back surface 2B of the outer wall plate 2 and extends in the vertical direction, that is, along the right end portion of the outer wall plate 2. A caulking 22S is provided on the flat surface facing the outdoor direction in the back side left and right joint portion 22. The caulking 22S is arranged linearly along the back side left and right joint portion 22. Note that the caulking is not essential and the caulking 22S can also be omitted.

[0082] The front side upper and lower joint portion 23 is recessed from the back surface 2B to the front surface 2F of the outer wall plate 2 and extends in the left - right direction, that is, along the lower end portion of the outer wall plate 2. An engaging recess 23A that is recessed in a substantially tapered shape upward is formed in the front side upper and lower joint portion 23.

[0083] The back side upper and lower joint portion 24 is recessed from the front surface 2F to the back surface 2B of the outer wall plate 2 and extends in the left - right direction, that is, along the upper end portion of the outer wall plate 2. A caulking 24S is provided on the flat surface facing the outdoor direction in the back side upper and lower joint portion 24. The caulking 24S is arranged linearly along the back side upper and lower joint portion 24. Note that the caulking is not essential and the caulking 24S can also be omitted. An engaging convex portion 24A that protrudes in a substantially tapered shape upward is formed in the back side upper and lower joint portion 24 above the caulking 24S.

[0084] As shown in FIGS. 4 and 8, when the back side upper and lower joint portion 24 of the lower outer wall plate 2 and the front side upper and lower joint portion 23 of the upper outer wall plate 2 overlap, between the outer wall plates 2 adjacent in the vertical direction There is formed a vertical joint portion (a joint portion in the vertical direction) extending in the left - right direction. As shown in FIG. 8, the front - side left - right joint portion 21 of the right - hand outer wall plate 2 and the back - side left - right joint portion 22 of the left - hand outer wall plate 2 overlap each other, and a left - right joint portion (a joint portion in the horizontal direction) extending in the vertical direction is formed between the adjacent outer wall plates 2 in the left - right direction. That is, the outer wall plate 2 is a plate material having a so - called "four - sided joint structure" including a front - side left - right joint portion 21, a back - side left - right joint portion 22, a front - side vertical joint portion 23, and a back - side vertical joint portion 24.

[0085] As shown in FIGS. 1, 4, and 8, a plurality of outer wall plates 2 are attached to the central plate portion 41, which is on the side opposite to the wall surface 9 of at least two vertical supports 40, by the first fixture 50 in a state of being adjacent in the vertical and left - right directions, covering the wall surface 9. The outer wall plate 2 is indirectly attached on the side opposite to the wall surface 9 of at least two horizontal supports 30 and is indirectly disposed at the second joint portion 32 of the horizontal support 30.

[0086] Here, the first lower locking portion 53 of the first fixture 50 locks the engaging convex portion 24A of the lower - side outer wall plate 2. Also, the first upper locking portion 52 locks the engaging concave portion 23A of the upper - side outer wall plate 2. The first supporting portion 51 supports the lower - end portion of the upper - side outer wall plate 2. The first upper abutting portion 56 and the first lower abutting portion 57 abut against the back surface 2B of the upper and lower outer wall plates 2, securing a ventilation space between the wall surface 9 of the structure 8 and the back surface 2B of the outer wall plate 2. Although not shown, the standing piece 59 is disposed between the opposing side end surfaces of the adjacent outer wall plates 2 in the left - right direction to prevent the lateral displacement of the outer wall plate 2. Thus, the first fixture 50 supports the outer wall plate 2 at the corner portion where a plurality of outer wall plates 2 are joined to each other. In addition, another fixture without the standing piece 59 supports the vertical joint portion of the outer wall plates 2 adjacent in the vertical direction between each of the first fixtures 50.

[0087] By performing such operations on the other outer wall plates 2 as well, each outer wall plate 2 is supported by the structure 8 in a state of being adjacent in the vertical and left - right directions, covering the wall surface 9.

[0088] <Effect> Summarizing the construction method of the outer wall panel 2 described above, the construction method of the outer wall panel 2 in the first embodiment is carried out in the first to fourth steps.

[0089] As shown in FIGS. 1 and 4, in the first step, by using the anchor bolts 100B to fix the fixing portion 115 to the structure 8, a plurality of brackets 100 are arranged on the wall surface 9.

[0090] In the second step, a plurality of horizontal supports 30 extend in the left - right direction along the wall surface 9 and are arranged across at least two brackets 100. At this time, the first joint portion 31 of the horizontal support 30 is placed on the placement surface 126 of the bracket 100.

[0091] In the third step, the bracket 100 and the horizontal support 30 are fastened by the first drill screw 91. Specifically, as shown in FIG. 5, the first drill screw 91 held by an electric driver (not shown) is pressed against the first joint portion 31 and the placement portion 125, and the electric driver is operated while applying a load F1. Then, as shown in FIG. 4, the first drill screw 91 penetrates the placement portion 125 and the first joint portion 31 in the vertical direction perpendicular to the placement surface 126, and the placement portion 125 and the first joint portion 31 are fastened.

[0092] The fourth step includes the fifth step and the sixth step. As shown in FIGS. 1 and 4, in the fifth step, a plurality of vertical supports 40 intersect the horizontal supports 30 and extend in the vertical direction along the wall surface 9 and are arranged across at least two horizontal supports 30. Then, by using the screws 40B, a pair of side plate portions 42 of the vertical support 40 and the second joint portion 32 of the horizontal support 30 are fastened, and the vertical support 40 is arranged at the second joint portion 32 of the horizontal support 30.

[0093] In the sixth step, by using the first fixture 50 fastened to the central plate portion 41 of the vertical support 40, a plurality of outer wall panels 2 are attached to at least two vertical supports 40 on the side opposite to the wall surface 9 to cover the wall surface 9.

[0094] In this embodiment, in the third step, by using the bracket 100 having the first and second side wall portions 101 and 102 that continuously extend from the first portion 110 to the second portion 120, when placing the first joint portion 31 of the horizontal support 30 on the placement surface 126, the unevenness of the wall surface 9 can be adjusted, and at that position, the bracket 100 and the horizontal support 30 can be fastened using the first drill screw 91.

[0095] That is, as shown in FIG. 5, even when a large load F1 acts on the bracket 100 when the first drill screw 91 fastens the placement portion 125 and the first joint portion 31, the bracket 100 reinforced by the first and second side wall portions 101 and 102 can withstand the load F1. Therefore, the adjustment of the unevenness of the wall surface 9 and the arrangement of the horizontal support 30 can be carried out in the same step, so that the construction becomes easy and fast.

[0096] Also, since the configuration in which the first drill screw 91 fastens the placement portion 125 and the first joint portion 31 does not use an elongated hole or the like, it is difficult for looseness or a gap to occur between the bracket 100 and the horizontal support 30. Furthermore, the deformation caused by the bracket 100 supporting the weight of the outer wall plate 2 over a long period can be suppressed by the first and second side wall portions 101 and 102.

[0097] Therefore, according to the wall structure of the building and the construction method of the outer wall plate 2 of the first embodiment, the construction is easy and fast, and the outer wall plate 2 can be stably supported.

[0098] Also, the protrusions 105 and 106 shown in FIGS. 5 to 7 can reinforce the first portion 110 and the second portion 120 of the bracket 100 and the connection portion between both. Further, as shown in FIG. 4, the heat insulating material 5 is arranged around the bracket 100. By the protrusions 105 and 106 taking on the role of increasing the rigidity, the height of the first and second side wall portions 101 and 102 can be maintained short. For this reason, on the side where the first and second side wall portions 101 and 102 of the bracket 100 are formed, the first and second side wall portions 101 and 102 can suppress the generation of a gap between the heat insulating material 5 and the bracket 100.

[0099] Furthermore, as shown in FIG. 6, the first height H1 at which the protrusions 105 and 106 protrude from the mounting surface 126 is set to be equal to or less than the second height H2 at which the first side wall portion 101 and the second side wall portion 102 protrude from the mounting surface 126. Thereby, the second height H2 can be reduced according to the reinforcing effect of the brackets 100 by the protrusions 105 and 106, and it is possible to prevent the first and second side wall portions 101 and 102 and the protrusions 105 and 106 from interfering with the construction. Further, when the heat insulating material 5 is disposed around the bracket 100, it is possible to effectively prevent a gap from being generated between the heat insulating material 5 and the bracket 100 in the vicinity of the first and second side wall portions 101 and 102.

[0100] Further, the protrusions 105 and 106 extend only up to approximately the center in the longitudinal direction of the second portion 120. For this reason, the mounting surface 126 is flat in the range where the protrusions 105 and 106 are not present in the second portion 120. Therefore, the first joint portion 31 of the horizontal support 30 can be surely mounted on the mounting surface 126, and the mounting portion 125 and the first joint portion 31 can be surely fastened by the first drill screw 91.

[0101] Furthermore, the outer wall plate 2 has a so-called "four-sided butting structure", in which the front-side upper and lower joint portions 23 and the back-side upper and lower joint portions 24 overlap to form an upper and lower butting portion, and the front-side left and right joint portions 21 and the back-side left and right joint portions 22 overlap to form a left and right butting portion. As a result, gaps between adjacent outer wall plates 2 in the vertical and horizontal directions are less likely to occur. Therefore, it is possible to ensure the joining and water tightness of the outer wall plate 2 without using a sealing material or the like. In addition, the appearance quality of the joint portion of the outer wall plate 2 is also improved. Therefore, it is possible to provide a wall structure that is easy to construct and has high quality. Furthermore, the outer wall plate 2 has a so-called "four-sided butting structure", in which the front-side upper and lower joint portions 23 and the back-side upper and lower joint portions 24 overlap to form an upper and lower butting portion, and the front-side left and right joint portions 21 and the back-side left and right joint portions 22 overlap to form a left and right butting portion. As a result, gaps between adjacent outer wall plates 2 in the vertical and horizontal directions are less likely to occur. Therefore, it is possible to ensure the joining and water tightness of the outer wall plate 2 without using a sealing material or the like. In addition, the appearance quality of the joint portion of the outer wall plate 2 is also improved. Therefore, it is possible to provide a wall structure that is easy to construct and has high quality.

[0102] (Embodiment 2) As shown in FIGS. 10 to 12, in the wall structure of the second embodiment, in the third step according to the first embodiment, when the unevenness of the wall surface 9 is so large that the alignment of the first joint portion 31 of the horizontal support 30 with respect to the placement surface 126 of the bracket 100 cannot adjust the unevenness of the wall surface 9. In this case, the extension member 200 is disposed between the placement portion 125 of the bracket 100 and the first joint portion 31 of the horizontal support 30 to adjust the large unevenness. Further, in the wall structure of the second embodiment, with respect to the bracket 100, the protruding portions 105 and 106 are extended until they reach the leading edge of the second portion 120. As a result, the placement surface 126 is a plane divided into a plurality in the width direction by the protruding portions 105 and 106. Other configurations of the second embodiment are the same as those of the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified.

[0103] The extension member 200 is manufactured by bending a metal plate material or the like. For example, the extension member 200 is formed in a substantially C-shaped cross section by bending a steel plate material having a thickness of about 2 mm. Note that the material and manufacturing method of the extension member 200 are not limited to the above, and various materials and manufacturing methods can be appropriately selected.

[0104] In the following description of the shape of the extension member 200, as shown in FIG. 10, the posture of the extension member 200 disposed between the placement portion 125 of the bracket 100 and the first joint portion 31 of the horizontal support 30 is used as a reference.

[0105] The extension member 200 has an extended placement portion 225, a first extension side wall portion 201, and a second extension side wall portion 202.

[0106] As shown in FIG. 11, the extended placement portion 225 has a substantially rectangular shape. The length L225 of the extended placement portion 225 in the indoor / outdoor direction is set to be substantially equal to the length L120 of the second portion 120 in the indoor / outdoor direction as an example, but it may be longer or shorter. The extended placement portion 225 includes an extended placement surface 226. The extended placement surface 226 is the upper surface of the extended placement portion 225.

[0107] The first extended side wall portion 201 is continuously formed from one end to the other end of the left edge 221 of the extended placement portion 225. The first extended side wall portion 201 protrudes downward from the left edge 221 and extends in the indoor / outdoor direction.

[0108] The second extended side wall portion 202 is formed in the same manner as the first extended side wall portion 201 at the right edge 222 of the extended placement portion 225.

[0109] The inner width W2 between the first extended side wall portion 201 and the second extended side wall portion 202 in the extension member 200 is set to be slightly longer than the outer width W1 between the first side wall portion 101 and the second side wall portion 102 in the bracket 100.

[0110] The extension member 200 is arranged between the placement portion 125 of the bracket 100 and the first joint portion 31 of the horizontal support 30 as follows. The second drill screw 92 fastens the extended placement portion 225 and the placement portion 125, and the third drill screw 93 fastens the extended placement portion 225 and the first joint portion 31. The second drill screw 92 and the third drill screw 93 are examples of fastening means. The configuration of the second drill screw 92 and the third drill screw 93 is the same as that of the first drill screw 91, so the description is simplified.

[0111] The operation of arranging the extension member 200 between the placement portion 125 and the first joint portion 31 is included in the second step described above. The operation of fastening the extended placement portion 225 and the placement portion 125 with the second drill screw 92 and the operation of fastening the extended placement portion 225 and the first joint portion 31 with the third drill screw 93 are included in the third step described above.

[0112] The extension member 200 is in a state where the extension placement portion 225 is placed on the placement surface 126 of the bracket 100 and extends in the outdoor direction away from the first portion 110 of the bracket 100, and the extension placement surface 226 faces the same side as the placement surface 126. Thereby, the first extension side wall portion 201 protrudes downward in the same manner as the first side wall portion 101 and is adjacent to the first side wall portion 101. Also, the second extension side wall portion 202 protrudes downward in the same manner as the second side wall portion 102 and is adjacent to the second side wall portion 102. At this time, unevenness of the wall surface 9 can be adjusted by shifting the position of the extension placement portion 225 placed on the placement surface 126 in the indoor-outdoor direction.

[0113] Then, the same operation as the fastening operation with the first drill screw 91 is performed for the second drill screw 92. Thereby, the second drill screw 92 performs drilling, tapping, and tightening with respect to the extension placement portion 225 and the placement portion 125.

[0114] In this way, the second drill screw 92 penetrates the placement portion 125 and the extension placement portion 225 in the vertical direction perpendicular to the placement surface 126, and fastens the placement portion 125 and the extension placement portion 225. A configuration in which a pilot hole is previously drilled at a location corresponding to the fastening position of the extension placement portion 225 is also included in the present invention.

[0115] Next, the horizontal support 30 is in a state where the first joint portion 31 is placed on the extension placement surface 226 of the extension member 200, and the second joint portion 32 is connected to the first joint portion 31 on the side opposite to the wall surface 9. At this time, unevenness of the wall surface 9 can also be adjusted by shifting the position of the first joint portion 31 of the horizontal support 30 placed on the extension placement surface 226 in the indoor-outdoor direction according to the unevenness of the wall surface 9.

[0116] Then, the same operation as the fastening operation with the first drill screw 91 is performed for the third drill screw 93. Thereby, the third drill screw 93 performs drilling, tapping, and tightening with respect to the extension placement portion 225 and the first joint portion 31.

[0117] In this way, the third drill screw 93 penetrates through the extension placement portion 225 and the first joint portion 31 in the vertical direction orthogonal to the extension placement surface 226, and fastens the extension placement portion 225 and the first joint portion 31. Note that the configuration in which a pilot hole is previously drilled at a location corresponding to the fastening position of the first joint portion 31 is also included in the present invention.

[0118] Thus, in the wall structure and the construction method of the outer wall panel 2 of the second embodiment, even when the unevenness of the wall surface 9 is large, after adjusting the unevenness using the extension member 200, the bracket 100 and the lateral support 30 can be fastened. Therefore, it is surely possible to arrange the lateral support 30 straight in the left - right direction, and as a result, the outer wall panel 2 can be arranged on the structure 8 with high precision.

[0119] Therefore, also in the wall structure and the construction method of the outer wall panel 2 of the second embodiment, the construction is easy and fast, and the outer wall panel 2 can be stably supported.

[0120] Also, as shown in FIG. 12, when the first and second extension side wall portions 201 and 202 sandwich the first and second side wall portions 101 and 102, the extension member 200 moves in a direction approaching or separating from the wall surface 9 During sliding, and when the second drill screw 92 fastens the placement portion 125 and the extension placement portion 225, lateral displacement of the placement portion 125 of the extension member 200 can be suppressed.

[0121] Furthermore, as shown in FIG. 11, even when a large load F2 acts on the extension member 200 when the second drill screw 92 fastens the placement portion 125 and the extension placement portion 225, the extension member 200 reinforced by the first and second extension side wall portions 201 and 202 can withstand the load F2. Also, even when a large load F3 acts on the extension member 200 when the third drill screw 93 fastens the extension placement portion 225 and the first joint portion 31, the extension member 200 reinforced by the first and second extension side wall portions 201 and 202 can withstand the load F3. As a result, the lateral support 30 can be easily and firmly fastened to the bracket 100 while adjusting the unevenness of the wall surface 9 by the extension member 200 and the second and third drill screws 92 and 93.

[0122] (Embodiment 3) As shown in FIG. 13, in the wall structure of Embodiment 3, the left and right ends of the outer wall plate 2 according to Embodiment 1 are changed to flat side end faces without the front side left and right joint portions 21 and the back side left and right joint portions 22. And in this wall structure, instead of the vertical support 40 and the first fixture 50 according to Embodiment 1, as shown in FIGS. 13 to 15, the left and right joint portion support 340, the second fixture 350, and the joiner 360 are used to attach the outer wall plate 2 to the wall surface 9. Other configurations of Embodiment 3 are the same as those of Embodiment 1. For this reason, the same components as those of Embodiment 1 are denoted by the same reference numerals, and the description thereof is omitted or simplified.

[0123] As shown in FIGS. 13 and 14, the left and right joint portion support 340 is a long plate member having an inverted hat-shaped cross section. The left and right joint portion support 340 includes a mounting plate portion 341, a first support plate portion 342, and a second support plate portion 343. The first support plate portion 342 is connected to one side edge of the flat mounting plate portion 341 with a step and extends flat in a direction away from the mounting plate portion 341. The second support plate portion 343 is connected to the other side edge of the flat mounting plate portion 341 with a step and extends flat in a direction away from the mounting plate portion 341 and the first support plate portion 342. The second support plate portion 343 is wider than the first support plate portion 342. The left and right joint portion support 340 is an example of the second support.

[0124] A plurality of left and right joint portion supports 340 are arranged on the wall surface 9 in a state of extending in the vertical direction along the wall surface 9 on the outdoor side with respect to the second joint portion 32 of the horizontal support 30. Also, the left and right joint portion supports 340 are respectively arranged at positions corresponding to the left end portion of the outer wall plate 2 and at positions corresponding to the right end portion of the outer wall plate 2. And as shown in FIG. 13, the mounting plate portion 341 of the left and right joint portion support 340 and the second joint portion 32 of the horizontal support 30 are fastened by screws 340B.

[0125] As shown in FIGS. 13 and 14, the first support plate portions 342 of the two left - right joint supports 340 located at positions corresponding to the left and right ends of the outer wall plate 2 are adjacent to each other. A joiner 360 is fastened to those first support plate portions 342 by screws 360B. The joiner 360 is a long plate - shaped member with a hat - shaped cross - section. The joiner 360 includes a convex portion 361 with a substantially C - shaped cross - section that protrudes outward in the outdoor direction.

[0126] The second support plate portion 343 of the left - right joint support 340 located at a position corresponding to the left end of the outer wall plate 2 is spaced apart to the left with respect to the joiner 360. The second support plate portion 343 of the left - right joint support 340 located at a position corresponding to the right end of the outer wall plate 2 is spaced apart to the right with respect to the joiner 360. A second fixture 350 is fastened to those second support plate portions 343 by screws 350B.

[0127] As shown in FIG. 15, the second fixture 350 includes a second fixing portion 355, a second upper abutting portion 356, a second lower abutting portion 357, a second supporting portion 351, a second upper locking portion 352, and a second lower locking portion 353. The second fixing portion 355 forms a flat surface that can abut against the second support plate portion 343 of the left - right joint support 340. The second upper abutting portion 356 bulges outward in the outdoor direction so as to be spaced apart from the second fixing portion 355. The second lower abutting portion 357 bulges outward in the outdoor direction so as to be spaced apart from the second fixing portion 355 at a position below the second upper abutting portion 356. The second supporting portion 351 protrudes outward in the outdoor direction from the second fixing portion 355 between the second upper abutting portion 356 and the second lower abutting portion 357 and extends in the left - right direction. Both ends of the second upper abutting portion 356 and both ends of the second lower abutting portion 357 are connected so as to surround the second supporting portion 351. The second upper locking portion 352 protrudes upward from the tip of the second supporting portion 351. The second lower locking portion 353 protrudes downward from the tip of the second supporting portion 351.

[0128] That is, the second fixture 350 has the same configuration as the first fixture 50, except that it does not have a standing piece 59 corresponding to the standing piece of the first fixture 50 according to the first embodiment. Therefore, for simplicity of explanation, as shown in FIG. 13, the second fixture 350 is configured to support the vertical joint portion of the outer wall plates 2 adjacent in the vertical direction, in the same manner as the first fixture 50.

[0129] The convex portion 361 of the joiner 360 is disposed between the opposing side end faces of the outer wall plates 2 adjacent in the left-right direction of the outer wall plate 2, and the sealing material S1 is filled in the space surrounded by those side end faces and the convex portion 361. The convex portion 361 of the joiner 360 also prevents lateral displacement of the outer wall plate 2.

[0130] In such a wall structure and construction method of the outer wall plate 2 according to the third embodiment, since the outer wall plates 2 can be fixed one by one, the construction is easy and fast, and the outer wall plates 2 can be stably supported.

[0131] (Embodiment 4) As shown in FIGS. 16 to 19, in the wall structure of the fourth embodiment, a plurality of vertical supports 430 are spaced apart from each other at a predetermined interval in the left-right direction and extend in the vertical direction along the wall surface 9, and are arranged on the wall surface 9. The vertical support 430 is arranged across at least two brackets 100. The outer wall plate 2 is directly attached on the side opposite to the wall surface 9 of at least two vertical supports 430 and is directly arranged at the second joint portion 432 of the vertical support 430. The vertical support 430 is an example of the first support. In the fourth embodiment, the first direction is the vertical direction. Other configurations of the fourth embodiment are the same as those of the first embodiment and the like. Therefore, the same components as those of the first embodiment and the like are denoted by the same reference numerals, and the description thereof is omitted or simplified.

[0132] The vertical support 430 is a long profile having a square tube cross-section. In the present embodiment, the vertical support 430 is a square steel pipe. Note that the material and manufacturing method of the vertical support 430 are not limited to the above, and various materials including resin, wood, etc., and manufacturing methods can be appropriately selected.

[0133] The vertical support 430 includes a first joint portion 431 and a second joint portion 432. The vertical support 430 includes a pair of plate-like portions extending in the indoor / outdoor direction and the vertical direction, and the plate-like portion located on the right side thereof is the first joint portion 431. Further, the vertical support 430 includes a pair of plate-like portions extending in the left / right direction and the vertical direction, and the plate-like portion located on the side opposite to the wall surface 9 is the second joint portion 432. That is, the second joint portion 432 is connected to one end edge of the flat first joint portion 431 and extends flat in a direction substantially perpendicular to the first joint portion 431.

[0134] In the fourth embodiment, the bracket 100 according to the first embodiment is used after changing its orientation. That is, in the fourth embodiment, with the placement portion 125 of the bracket 100 extending in the indoor / outdoor direction and the vertical direction and the placement surface 126 being a left-facing plane, the fixing portion 115 of the bracket 100 is fixed to the wall surface 9.

[0135] At this time, as shown in FIG. 19 and the like, in the fourth embodiment, the round hole 110H according to the first embodiment is changed to an elongated hole 410H. Thereby, it is possible to fix the fixing portion 115 to the wall surface 9 while adjusting the position of the bracket 100 in the left / right direction.

[0136] In the bracket 100 according to the fourth embodiment, a main elongated hole 150 and a plurality of main round holes 160 are provided in the placement portion 125. The bracket 100 according to the fourth embodiment is an example of a mounting device.

[0137] The main elongated hole 150 extends in the outdoor direction so as to be away from the fixing portion 115. The longitudinal direction of the main elongated hole 150 is the indoor / outdoor direction. In the present embodiment, the main elongated hole 150 is arranged on the extension line of the rib 106B.

[0138] Each main round hole 160 is arranged in a direction intersecting the longitudinal direction of the main elongated hole 150, that is, at a position away from the main elongated hole 150 in the vertical direction. Each main round hole 160 is arranged in a row in the indoor / outdoor direction. In the present embodiment, each main round hole 160 is arranged on the extension line of the rib 105B.

[0139] The construction method of the outer wall panel 2 in Embodiment 4 is carried out by the first to fourth steps.

[0140] As shown in FIGS. 16 to 19, in the first step, with the placement surface 126 being a left-facing plane, the fixing portion 115 is fixed to the structure 8 by the anchor bolts 100B, and a plurality of brackets 100 are arranged on the wall surface 9.

[0141] In the second step, a plurality of vertical supports 430 are extended in the vertical direction along the wall surface 9 and arranged across at least two brackets 100. At this time, the first joint portion 431 of the vertical support 430 is placed to the left of the placement surface 126 of the bracket 100.

[0142] In the third step, the placement portion 125 of the bracket 100 and the first joint portion 431 of the vertical support 430 are fastened by the first drill screw 91. The direction of fastening the first drill screw 91 is changed to the left in Embodiment 4.

[0143] At this time, as shown in FIG. 19, after inserting the first drill screw 91 into the main elongated hole 150 of the placement portion 125 and then slightly screwing it into the first joint portion 431, the vertical support 430 can be temporarily fixed to the placement portion 125. Then, in that state, after shifting the vertical support 430 in the indoor / outdoor direction for positioning, by completely screwing the first drill screw 91 into the first joint portion 431, the placement portion 125 and the first joint portion 431 can be securely fastened. As a result, the positioning of the vertical support 430 for unevenness adjustment of the wall surface 9 can be accurately and easily performed, and the simplification of the work can be realized.

[0144] Next, by inserting another first drill screw 91 into the main round hole 160 of the placement portion 125 and screwing it into the first joint portion 431, the placement portion 125 and the first joint portion 431 can be more securely fastened. At this time, since another first drill screw 91 does not need to make a pilot hole in the placement portion 125, the fastening work by another first drill screw 91 can be easily performed.

[0145] As shown in FIGS. 16 to 18, in the fourth step, the second fixture 350 according to the third embodiment is fastened to the second joint portion 432 of the vertical support 430 by the screw 350B, and by the second fixture 350, the plurality of outer wall plates 2 are attached to at least two vertical supports 430 on the side opposite to the wall surface 9, and the wall surface 9 is covered.

[0146] Therefore, also in the wall structure and the construction method of the outer wall plate 2 of the fourth embodiment, the construction is easy and fast, and the outer wall plate 2 can be stably supported.

[0147] (Embodiment 5) As shown in FIGS. 20 to 22, the wall structure of the fifth embodiment shows a case where the unevenness of the wall surface 9 is so large that the alignment of the first joint portion 431 of the vertical support 430 with respect to the placement surface 126 of the bracket 100 cannot adjust the unevenness of the wall surface 9 in the third step according to the fourth embodiment. In this case, the extension member 200 is disposed between the placement portion 125 of the bracket 100 according to the fourth embodiment and the first joint portion 431 of the vertical support 430 to adjust the large unevenness.

[0148] In the fifth embodiment, the orientation of the extension member 200 according to the second embodiment is changed and used. That is, in the fifth embodiment, the extension member 200 is placed on the left of the placement portion 125 provided with the main elongated hole 150 and the main round hole 160 in the bracket 100 in a state where the extension placement portion 225 extends in the indoor-outdoor direction and the vertical direction, and the extension placement surface 226 is a left-facing plane.

[0149] In the extension member 200 according to the fifth embodiment, the extension placement portion 225 is provided with an auxiliary elongated hole 250 and a plurality of auxiliary round holes 260. The bracket 100 and the extension member 200 according to the fifth embodiment are an example of a mounting device.

[0150] The auxiliary elongated hole 250 extends in the outdoor direction so as to be away from the first portion 110 of the bracket 100. The longitudinal direction of the auxiliary elongated hole 250 is the indoor-outdoor direction.

[0151] Each auxiliary round hole 260 is arranged in a direction intersecting the longitudinal direction of the auxiliary elongated hole 250, that is, at a position away from the auxiliary elongated hole 250 in the vertical direction. The auxiliary round holes 260 are arranged in a row in the indoor-outdoor direction.

[0152] As shown in FIG. 21, the auxiliary elongated hole 250 and the auxiliary round hole 260 are arranged at positions shifted downward with respect to the main elongated hole 150 of the mounting portion 125. Further, the auxiliary elongated hole 250 and the auxiliary round hole 260 are arranged at positions shifted upward with respect to the main round hole 160 of the mounting portion 125.

[0153] In other words, the auxiliary elongated hole 250 and the auxiliary round hole 260 are arranged at positions that do not overlap with the main elongated hole 150 of the mounting portion 125. Further, the auxiliary elongated hole 250 and the auxiliary round hole 260 are arranged at positions that do not overlap with the main round hole 160 of the mounting portion 125.

[0154] In the third step of the construction method of the outer wall plate 2 of the fifth embodiment, the mounting portion 125 of the bracket 100 and the extended mounting portion 225 of the extension member 200 are fastened by the second drill screw 92. The direction in which the second drill screw 92 is fastened is changed to the left in the fifth embodiment.

[0155] At this time, as shown in FIG. 22, after inserting the second drill screw 92 into the main elongated hole 150 of the mounting portion 125 and then gently screwing it into the extended mounting portion 225, the extension member 200 can be temporarily fixed to the mounting portion 125. Then, in that state, after shifting and positioning the extension member 200 in the indoor-outdoor direction, the mounting portion 125 and the extended mounting portion 225 can be securely fastened by completely screwing the second drill screw 92 into the extended mounting portion 225.

[0156] Next, by inserting another second drill screw 92 into the main round hole 160 of the mounting portion 125 and screwing it into the extended mounting portion 225, the mounting portion 125 and the extended mounting portion 225 can be more securely fastened. At this time, since another second drill screw 92 does not need to drill a pilot hole in the mounting portion 125, the fastening operation by another second drill screw 92 can be easily performed.

[0157] Next, the extension placement portion 225 of the extension member 200 and the first joint portion 431 of the vertical support 430 are fastened by the third drill screw 93. The direction of fastening the third drill screw 93 is also changed to the left.

[0158] At this time, after inserting the third drill screw 93 into the auxiliary long hole 250 of the extension placement portion 225 and then slightly screwing it into the first joint portion 431, the vertical support 430 can be temporarily fixed to the extension placement portion 225. Then, in that state, after shifting and positioning the vertical support 430 in the indoor-outdoor direction, by completely screwing the third drill screw 93 into the first joint portion 431, the extension placement portion 225 and the first joint portion 431 can be securely fastened. As a result, the positioning of the vertical support 430 for unevenness adjustment of the wall surface 9 can be accurately and easily performed, and the simplification of the work can be realized.

[0159] Next, another third drill screw 93 is inserted into the auxiliary round hole 260 of the extension placement portion 225 and screwed into the first joint portion 431, so that the extension placement portion 225 and the first joint portion 431 can be more securely fastened. At this time, since another third drill screw 93 does not need to drill a pilot hole in the extension placement portion 225, the fastening work by another third drill screw 93 can be easily performed.

[0160] Here, the auxiliary long hole 250 and the auxiliary round hole 260 are arranged at positions shifted from the main long hole 150 of the placement portion 125. Also, the auxiliary long hole 250 and the auxiliary round hole 260 are arranged at positions shifted from the main round hole 160 of the placement portion 125. Thereby, the main long hole 150 and the main round hole 160, and the auxiliary long hole 250 and the auxiliary round hole 260 do not inhibit each other's effects. As a result, the positioning of the vertical support 430 for unevenness adjustment of the wall surface 9 can be more accurately and easily performed, and further simplification of the work can be realized.

[0161] Therefore, also in the wall structure of the fifth embodiment and the construction method of the outer wall panel 2, the construction is easy and fast, and the outer wall panel 2 can be stably supported.

[0162] (Embodiment 6) As shown in FIGS. 23 and 24, in the wall structure of the sixth embodiment, the horizontal support 30 according to the first embodiment is supported by using the bracket 100 and the extension member 200 according to the fifth embodiment. In the sixth embodiment, the first direction is the left-right direction. Then, the orientations of the bracket 100 and the extension member 200 according to the fifth embodiment are changed to the same orientation as the bracket 100 and the extension member 200 according to the second embodiment. That is, the extension placement portion 225 of the extension member 200 is placed on the placement portion 125 of the bracket 100. The first joint portion 31 of the horizontal support 30 is placed on the extension placement portion 225 of the extension member 200. Also, the direction of fastening the second drill screw 92 and the direction of fastening the third drill screw 93 are downward.

[0163] In the third step of the construction method of the outer wall panel 2 of the sixth embodiment, the second drill screw 92 is used to fasten the placement portion 125 of the bracket 100 and the extension placement portion 225 of the extension member 200 that overlaps the placement portion 125 from above.

[0164] At this time, as shown in FIG. 23, after inserting the second drill screw 92 into the auxiliary long hole 250 of the extension placement portion 225 and then slightly screwing it into the placement portion 125, the extension member 200 can be temporarily fixed to the placement portion 125. Then, in that state, after shifting and positioning the extension member 200 in the indoor-outdoor direction, by completely screwing the second drill screw 92 into the placement portion 125, the placement portion 125 and the extension placement portion 225 can be securely fastened.

[0165] Next, another second drill screw 92 is inserted into the auxiliary round hole 260 of the extension placement portion 225 and screwed into the placement portion 125, so that the placement portion 125 and the extension placement portion 225 can be more securely fastened.

[0166] Next, the third drill screw 93 is used to fasten the extension placement portion 225 of the extension member 200 and the first joint portion 31 of the horizontal support 30 that overlaps the extension placement portion 225 from above at a position that does not overlap the auxiliary long hole 250 and the auxiliary round hole 260 of the extension placement portion 225.

[0167] Therefore, also in the wall structure and the construction method of the outer wall plate 2 according to the sixth embodiment, the construction is easy and quick, and the outer wall plate 2 can be stably supported.

[0168] (Modification example of the bracket) As shown in FIG. 25, as a modification example of the bracket 100 according to the fourth to sixth embodiments, that is, the bracket 100 in which the main elongated hole 150 and the main round hole 160 are provided in the placement portion 125, a configuration in which the protruding portions 105 and 106 are eliminated is also included in the present invention. Further, although not shown, a configuration in which the main elongated hole 150 and the main round hole 160 are eliminated from the bracket 100 of the modification example shown in FIG. 25 is also included in the present invention.

[0169] As described above, the embodiments of the present invention have been described in accordance with the first to sixth embodiments. However, the embodiments of the present invention are not limited to the above-described first to sixth embodiments, and it goes without saying that they can be appropriately changed and applied without departing from the gist thereof.

[0170] For example, in the first to third and sixth embodiments, the first direction is the left-right direction, but the configuration is not limited to this, and as in the fourth and fifth embodiments, the first direction may be the up-down direction. The same applies to the second direction.

[0171] A configuration in which the first side wall portion 101 according to the first embodiment is changed as follows is also included in the present invention. That is, the first side wall portion 101 continuously extends from a position shifted upward from the lower end of the left edge 111 of the first portion 110 to a position shifted toward the fixing portion 115 side from the tip of the left edge 121 of the second portion 120, and can be changed to a configuration that protrudes toward the narrow angle α1 side. The same applies to the second side wall portion 102.

[0172] A configuration in which the outer wall plate 2 is directly fixed to the vertical support 40 with screws, nails, etc. without using the first fixture 50 according to the first embodiment or the second fixture 350 according to the second embodiment is also included in the present invention.

Explanation of reference numerals

[0173] 9... Wall surface 8... Structure 100… Bracket 30… First support (horizontal support) 91, 92, 93… Fastening members (91… First drill screw, 92… Second drill screw, 93… Third drill screw) 40, 340… Second support (40… Vertical support, 340… Left - right joint support) 2… Plate material (outer wall plate) 115… Fixed part 110… First part 120… Second part 111… One side edge of the first part (left side edge of the first part) 121… One side edge of the second part (left side edge of the second part) α1… Narrow angle formed by the first part and the second part 101… First side wall part 112… The other side edge of the first part (right side edge of the first part) 122… The other side edge of the second part (right side edge of the second part) 102… Second side wall part 126… Placing surface 125… Placing part 31… First joint part 32… Second joint part 105, 106… Protruding parts H1… First height H2… Second height 200… Extension member 226… Extended placing surface 225… Extended placing part 221… One side edge of the extended placing part (left side edge of the extended placing part) 201… First extended side wall part 222… The other side edge of the extended placing part (right side edge of the extended placing part) 202… Second extended side wall part 2B… Back surface of the plate material (back surface of the outer wall plate) 2F… Front surface of the plate material (front surface of the outer wall plate) 23… First butt - joint part of the plate material (front - side upper - lower joint part) 24… Second butt - joint part of the plate material (back - side upper - lower joint part) 22… Third butt - joint part of the plate material (back - side left - right joint part) 21… Fourth butt joint of the board material (left and right joint on the front side) 150… Main elongated hole 160… Main round hole 250… Auxiliary elongated hole 260… Auxiliary round hole

Claims

1. A plurality of brackets arranged on the wall surface of a building, a plurality of first supports extending in a first direction along the wall surface and arranged across at least two of the brackets, a fastening member for fastening the brackets and the first supports, a building wall structure comprising a plurality of plate members directly or indirectly attached on the side opposite to the wall surface of at least two of the first supports and covering the wall surface, wherein the bracket comprises a first portion including a fixing portion fixable to the wall surface, a second portion bent substantially at a right angle from the first portion and extending away from the fixing portion, a first side wall portion continuously extending without a break from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion and protruding toward the narrow angle side of the angle formed by the first portion and the second portion, a second side wall portion continuously extending without a break from at least a part of the other side edge of the first portion to at least a part of the other side edge of the second portion and protruding toward the narrow angle side, a mounting portion provided on the second portion and including a mounting surface facing the side opposite to the first side wall portion and the second side wall portion, a main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the mounting portion and extending away from the fixing portion, in a direction intersecting the longitudinal direction of the main elongated hole, at a position away from the main elongated hole in the mounting portion, and at least one main round hole formed at a position closer to the first side wall portion than the second side wall portion, wherein the first support comprises a first joint portion placed on the mounting surface, and a second joint portion connected to the first joint portion on the side opposite to the wall surface and where the plate members are directly or indirectly arranged, and the fastening member includes a first drill screw for fastening the mounting portion and the first joint portion through the main elongated hole and the main round hole.

2. An extension member is provided between the mounting portion of the bracket and the first joint portion of the first support, wherein the extension member comprises an extended mounting portion placed on the mounting surface, extending away from the first portion, and including an extended mounting surface facing the same side as the mounting surface, a first extended side wall portion protruding in the same direction as the first side wall portion from one side edge of the extended mounting portion and adjacent to the first side wall portion, It has a second extended side wall portion that protrudes in the same direction as the second side wall portion from the other side edge of the extended placement portion. The extended placement portion has an auxiliary elongated hole that extends away from the first portion. It has at least one auxiliary round hole disposed at a position away from the auxiliary elongated hole in a direction intersecting the longitudinal direction of the auxiliary elongated hole. When the extension member is placed on the placement surface. The auxiliary elongated hole and the auxiliary round hole are respectively disposed at positions shifted from the main elongated hole and the main round hole. The fastening member a second drill screw that fastens the placement portion and the extended placement portion through the main elongated hole and the main round hole; a third drill screw that fastens the extended placement portion and the first joint portion through the auxiliary elongated hole and the auxiliary round hole. The wall structure of a building according to claim 1.

3. A first portion including a fixing portion that can be fixed to the wall surface of a building; a second portion that bends substantially at a right angle from the first portion and extends away from the fixing portion; a first side wall portion that continuously extends without a seam from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion and protrudes toward the narrow angle side of the angle formed by the first portion and the second portion; a second side wall portion that continuously extends without a seam from at least a part of the other side edge of the first portion to at least a part of the other side edge of the second portion and protrudes toward the narrow angle side; a placement portion provided in the second portion and including a placement surface facing the opposite side of the first side wall portion and the second side wall portion; a main elongated hole formed at a position closer to the second side wall portion than the first side wall portion in the placement portion and extending away from the fixing portion; In a direction intersecting the longitudinal direction of the main elongated hole, at a position away from the main elongated hole in the placement portion and at least one main round hole formed at a position closer to the first side wall portion than the second side wall portion. A bracket.

4. The bracket has an extension member. The extension member is placed on the placement surface, extends away from the first portion, and includes an extended placement portion having an extended placement surface facing the same side as the placement surface. a first extended side wall portion that protrudes in the same direction as the first side wall portion from one side edge of the extended placement portion and is adjacent to the first side wall portion. A second extended side wall portion that protrudes in the same direction as the second side wall portion from the other side edge of the extended placement portion and is adjacent to the second side wall portion; An auxiliary elongated hole formed in the extended placement portion and extending away from the first portion; When the extension member is placed on the placement surface; The auxiliary elongated hole is disposed at a position offset from the main elongated hole and the main round hole. The bracket according to claim 3.

5. The bracket has an extension member, The extension member is placed on the placement surface, includes an extended placement portion that extends away from the first portion and faces the same side as the placement surface, and has an extended placement surface; A first extended side wall portion that protrudes in the same direction as the first side wall portion from one side edge of the extended placement portion and is adjacent to the first side wall portion; A second extended side wall portion that protrudes in the same direction as the second side wall portion from the other side edge of the extended placement portion and is adjacent to the second side wall portion; An auxiliary round hole formed in the extended placement portion; When the extension member is placed on the placement surface; The auxiliary round hole is disposed at a position offset from the main elongated hole and the main round hole. The bracket according to claim 3.

6. A method for installing a plate material on a wall surface of a building using a bracket, a first support, and a fastening member, the method comprising: a first step of arranging a plurality of the brackets on the wall surface; a second step of arranging a plurality of the first supports to extend in a first direction along the wall surface and span at least two of the brackets; a third step of fastening the bracket and the first support with the fastening member; a fourth step of directly or indirectly attaching a plurality of the plate materials to the side of at least two of the first supports opposite to the wall surface to cover the wall surface. The bracket includes a first portion having a fixing portion that can be fixed to the wall surface; a second portion that bends substantially at a right angle from the first portion and extends away from the fixing portion; a first side wall portion that continuously extends without a seam from at least a part of one side edge of the first portion to at least a part of one side edge of the second portion and protrudes toward the narrow angle side of the angle formed by the first portion and the second portion; a second side wall portion that continuously extends without a seam from at least a part of the other side edge of the first portion to at least a part of the other side edge of the second portion and protrudes toward the narrow angle side. A placement part provided in the second part and including a placement surface facing the side opposite to the first side wall part and the second side wall part; A main elongated hole formed at a position closer to the second side wall part than the first side wall part in the placement part and extending away from the fixing part; In a direction intersecting the longitudinal direction of the main elongated hole; At a position away from the main elongated hole in the placement part and At least one main round hole formed at a position closer to the first side wall part than the second side wall part, and comprising; The first support body A first joint part placed on the placement surface in the second step; A second joint part connected to the first joint part on the side opposite to the wall surface and where the plate material is directly or indirectly arranged in the fourth step, and including; The fastening member includes a first drill screw that fastens the placement part and the first joint part through the main elongated hole and the main round hole in the third step A construction method for a plate material.

7. In the second step, an extension member is arranged between the placement part of the bracket and the first joint part of the first support body, The extension member An extended placement part including an extended placement surface that is placed on the placement surface, extends away from the first part, and faces the same side as the placement surface; A first extended side wall part that protrudes from one side edge of the extended placement part in the same direction as the first side wall part and is adjacent to the first side wall part; A second extended side wall part that protrudes from the other side edge of the extended placement part in the same direction as the second side wall part and is adjacent to the second side wall part, and has The extended placement part has an auxiliary elongated hole that extends away from the first part; At least one auxiliary round hole arranged at a position away from the auxiliary elongated hole in a direction intersecting the longitudinal direction of the auxiliary elongated hole, and having; When the extension member is placed on the placement surface, The auxiliary elongated hole and the auxiliary round hole are respectively arranged at positions shifted with respect to the main elongated hole and the main round hole; In the third step, the fastening member Fastens the placement part and the extended placement part through the main elongated hole and the main round hole with a second drill screw; The construction method for a plate material according to claim 6, wherein the extended placement part and the first joint part are fastened through the auxiliary elongated hole and the auxiliary round hole with a third drill screw.

Images