Exterior louvers

Abstract

This will greatly increase the design flexibility of exterior louvers. [Solution] The exterior louvers 100 are constructed by arranging louvers 102, which are made up of multiple louver components 110 connected in the axial direction, parallel to the outside of the exterior wall 12 of the building 10. The louver components 110 are made up of base materials 120, 122 that extend along the entire length of the louver component 110, and long shape-changing members 130, 132, 134 or short shape-changing members 140, 142, 144 that can be joined to the outer surface of the base materials 120, 122 to change the cross-sectional shape of the louvers 102.

Description

Technical Field

[0001] The present invention relates to an exterior louver.

Background Art

[0002] Patent Document 1 discloses a technique related to a panel for a louver. In this prior art, the louver panel includes a plate material, a rectangular frame-shaped spacer unit, a core material, and a decorative cover. The spacer unit is located between the plate materials and adhered to each of the plate materials. The core material is located in the region surrounded by the plate materials and the spacer unit and adhered to each of the plate materials. The spacer unit includes spacers constituting a pair of long side portions and spacers constituting a pair of short side portions. The decorative cover has mounting pieces that sandwich the spacers.

[0003] Patent Document 2 discloses a technique related to a support structure for vertical louvers provided on the outer wall portion of a building such as a building or a condominium for improving the appearance design, blocking the line of sight for privacy protection, and blocking the west sun. In this prior art, the vertical louver has a structure supported by support hardware, a horizontally arranged stringer, and a bracket support member. In the gap portion of the vertical louver, a connecting sleeve is inserted across the upper vertical louver and the lower vertical louver. The bracket support member is bolted to the stringer by a bolt member provided in the middle portion in the vertical direction, and the lower portion of the bracket support member is connected to the outer surface of the lower vertical louver by screws, and the upper portion of the bracket support member enters into the upper vertical louver from the gap portion and is connected to the connecting sleeve by screws.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] Exterior louvers are sometimes installed on the outside of a building's exterior walls to improve its appearance, block views, and shield from the afternoon sun. Furthermore, there is a need to increase the design flexibility of exterior louvers to further enhance their aesthetic appeal.

[0006] In view of the above facts, the present invention aims to greatly increase the degree of design freedom for exterior louvers. [Means for solving the problem]

[0007] The first embodiment is an exterior louver in which a plurality of louver components are connected in the axial direction and arranged parallel to the outside of the exterior wall of a building, wherein the louver components are composed of a base material extending along the entire length of the louver component and a shape-changing member that can be joined to the outer surface of the base material and changes the cross-sectional shape of the louver.

[0008] In the exterior louvers of the first embodiment, the cross-sectional shape of the louvers can be changed at any position in the axial direction by joining a shape-changing member to the outer surface of the base material of the louver components, thus providing a high degree of freedom in design.

[0009] The second embodiment is the exterior louver described in the first embodiment, wherein adjacent louver components with different cross-sectional shapes are connected by a connecting member.

[0010] In the exterior louvers of the second embodiment, adjacent louver components with different cross-sectional shapes, i.e., louver components with different natural frequencies, are connected by a connecting member. Therefore, compared to the case where adjacent louver components have the same cross-sectional shape, vibration of the louver components due to wind is suppressed.

[0011] The third embodiment is an exterior louver according to the first or second embodiment, wherein the louvers are arranged along the vertical direction, the upper ends of the louver components are attached to a first bracket provided on the upper surface of the protruding portion that extends outward from the exterior wall, and the lowest louver component, whose lower end is a free end, is attached not only to the first bracket provided on the upper surface of the protruding portion, but also to a second bracket provided on the lower surface of the protruding portion.

[0012] In the third embodiment of the exterior louvers, the lowest louver component whose lower end is a free end is attached not only to the first bracket provided on the upper surface of the protruding section, but also to the second bracket provided on the lower surface of the protruding section. Therefore, the mounting strength is greater compared to the case where it is attached only to the first bracket. [Effects of the Invention]

[0013] According to the present invention, the degree of freedom in the design of exterior louvers can be greatly increased. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front view of the exterior louvers installed on the building. [Figure 2] Figure 1 is a schematic front view of the exterior louvers as seen from the Y direction. [Figure 3] Figure 1 is a schematic side view of the exterior louvers as seen from the X direction. [Figure 4] This is a side view of the attachment point between the louver components of the louver and the overhanging slab. [Figure 5] This is a side view of the attachment point between the lowest louver component and the overhanging slab. [Figure 6] (A) and (B) are plan views of the base material, and (C), (D) and (E) are plan views of the long-length shape-changing member and the short-length shape-changing member. [Figure 7](A) in the louver is the cross-sectional shape of the portion where the long-shaped modification member or short-shaped modification member in FIG. 6(C) is joined to the base material in FIG. 6(A), (B) is the cross-sectional shape of only the portion of the base material in FIG. 6(A), (C) is the cross-sectional shape of the portion where the long-shaped modification member or short-shaped modification member in FIG. 6(D) is joined to the base material in FIG. 6(B), (D) is the cross-sectional shape of the portion where the long-shaped modification member or short-shaped modification member in FIG. 6(E) is joined to the base material in FIG. 6(B), and (E) is the cross-sectional shape of only the portion of the base material in FIG. 6(B). [Figure 8] (A) in the louver is a perspective view of the outer shape of the portion having the cross-sectional shape in FIG. 7(A), (B) is a perspective view of the outer shape of the portion having the cross-sectional shapes in FIGS. 7(B) and 7(C), (C) is a perspective view of the outer shape of the portion having the cross-sectional shape in FIG. 7(D), and (D) is a perspective view of the outer shape of the portion having the cross-sectional shape in FIG. 7(E). [Figure 9] It is an explanatory view in which each louver of the exterior louver shown in FIG. 2 is hatched differently for each cross-sectional shape. [Figure 10] (A) is a cross-section along line 10A in FIG. 2, (B) is a cross-section along line 10B in FIG. 2, and (C) is a cross-section along line 10C in FIG. 2. [Figure 11] (A) is a cross-section along line 11A in FIG. 2, (B) is a cross-section along line 11B in FIG. 2, and (C) is a cross-section along line 11C in FIG. 2. [Figure 12] It is a side view seen from the X direction schematically showing the exterior louver of the modification example.

Mode for Carrying Out the Invention

[0015] <Embodiment> An embodiment of the present invention will be described.

[0016] Here, two orthogonal horizontal directions are taken as the X direction and the Y direction, which are indicated by arrow X and arrow Y, respectively. The vertical direction orthogonal to the X direction and the Y direction is taken as the Z direction, which is indicated by arrow Z.

[0017] Furthermore, each drawing is only a schematic representation. The shape, dimensions, and proportions of each element shown in the drawings may not match those of reality. The shape, dimensions, proportions, and number of elements may also not match between multiple drawings. For example, the number and spacing of the louvers in Figure 2 (described later) do not match those in Figure 1. Also, for example, the shapes of the base material, long shape-changing member, and short shape-changing member that make up the louver components in Figure 3 (described later) do not match those in other drawings (e.g., Figure 6) for clarity.

[0018] Furthermore, hatching to represent cross-sections may be omitted if it makes the image difficult to see. Descriptions of configurations not directly related to the present invention and well-known configurations may be omitted or simplified.

[0019] [Overall structure] First, the overall configuration of the exterior louvers in this embodiment will be described.

[0020] As shown in Figures 1, 2, and 3, the exterior louvers 100 of this embodiment are configured with a plurality of louvers 102 arranged along the vertical direction (Z direction) parallel to the outside of the exterior wall 12 of the building 10, and spaced apart in the X direction in this embodiment. Each louver 102 of this embodiment is attached to an overhanging slab 20 that extends from the exterior wall 12 of the building 10.

[0021] Here, the louvers 102 may be distinguished and described as louvers 102A, 102B, 102C, 102D, and 102E, starting from the left side of Figure 2. Similarly, the cantilever slabs 20 may be distinguished and described as cantilever slabs 20A, 20B, 20C, 20D, 20E, and 20F, starting from the top side of Figure 2. Furthermore, as will be discussed later, there are multiple types of appearances for each louver 102, but if there is no need to distinguish them, they will not be distinguished in the description.

[0022] As mentioned above, the shapes, dimensions, and proportions of each element shown in the drawings may not match those of reality, and the shapes, dimensions, proportions, and number of elements may not necessarily match between multiple drawings.

[0023] Each louver 102 of the exterior louver 100 in this embodiment is made up of multiple louver components 110 connected in the axial direction, and in this embodiment in the Z direction. As will be described later, there are multiple types of louver components 110, but unless it is necessary to explain them separately, they will be shown and described as "louver component 110" as shown here.

[0024] As shown in Figures 3, 4, and 5, adjacent louver components 110 are connected in this embodiment by a joint sleeve 105 provided inside the louver component 110. Specifically, the joint sleeve 105 is positioned to straddle the inside of the lower end portion 114 of the upper louver component 110 and the inside of the upper end portion 112 of the lower louver component 110, and the louver components 110 are connected by fastening them with screws (not shown). Each louver component 110 is connected with a small gap between each member to absorb thermal expansion (see Figures 4 and 5).

[0025] Note that Figures 4 and 5 do not reflect the configurations of the base materials 120, 122, the long shape-changing members 130, 132, 134, and the short shape-changing members 140, 142, 144, which will be described later.

[0026] The multiple louver components 110 that make up the louver 102 are each attached via fasteners 60 (Figures 4 and 5) to brackets 50 fixed to the upper surface 22 of the overhanging slab 20 at their upper ends 112. The overhanging slab 20 is an example of an overhanging section. As mentioned above, the lower ends 114 of each louver component 110 are connected to the louver component 110 below them by the joint sleeves 105 described above.

[0027] As shown in Figures 4 and 5, the fastener 60 in this embodiment has a convex hat shape on the building 10 side. The arm portion 62 of this hat-shaped fastener 60 is bolted to the upper end portion 112 of the louver component 110 by bolts 61 and nuts 63.

[0028] The bracket 50 in this embodiment is made of an L-shaped angle material. One side 52 of the bracket 50 is fixed to the upper surface 22 of the cantilever slab 20 by an anchor bolt 51, and the other side 54 is bolted to the web portion 64 of the fastener 60. As a result, the upper end portion 112 of the louver component 110 is attached to the upper surface 22 of the cantilever slab 20.

[0029] As shown in Figures 3 and 5, the louver component 110 that forms the lowest end of the louver 102 has its upper end 112 attached to a bracket 50 fixed to the upper surface 22 of the cantilever slab 20 via a fastener 60 (see Figure 5), and its lower end 114 attached to a bracket 50 fixed to the lower surface 24 of the cantilever slab 20 via a fastener 60 (see Figure 5).

[0030] Furthermore, the lower bracket 50 fixed to the underside 24 of the cantilevered slab 20 is identical to the upper bracket 50 except that it is positioned symmetrically to it. Also, the upper bracket 50 is an example of the first bracket, and the lower bracket 50 is an example of the second bracket.

[0031] As shown in Figures 1 and 2, the lower end 114 of the louver component 110 that constitutes the lowest end of each louver 102 is a free end (see also Figure 3) and is located upward as you move from right to left in the figures.

[0032] Furthermore, as shown in Figures 2 and 3, the louver components 110 that make up the lowest end of the louver 102 are connected by connecting members 106. The connecting members 106 connect adjacent louver components 110 in the Y direction by bolting them to the back of the louver components 110 (the side facing the exterior wall 12 of the building 10). Note that, as shown in Figure 2, the connecting members 106 are arranged so as to have an upward slope from right to left in the figure.

[0033] As shown in Figure 2, the louver components 110 of the louver 102, excluding the lowest end, are approximately the same length as the distance between the cantilever slabs 20 of the building 10, that is, approximately the same length as one floor. In contrast, the louver component 110 at the lowest end of the louver 102 has a different length, and as mentioned above, the lower end 114 of the free end is located upward as you move from right to left in the figure.

[0034] [Louver components] Next, the configuration of the louver components 110 of the louver 102 of the exterior louver 100 will be described.

[0035] The louver component 110 is composed of base materials 120 and 122 shown in Figures 6(A) and 6(B), and long shape-changing members 130, 132, and 134 and short shape-changing members 140, 142, and 144 shown in Figures 6(C), 6(D), and 6(E). In this embodiment, the base materials 120 and 122, the long shape-changing members 130, 132, and 134, and the short shape-changing members 140, 142, and 144 are all hollow (cylindrical) members manufactured by aluminum extrusion molding, but are not limited to this.

[0036] The total axial length of the base materials 120 and 122 is the same as the total axial length of the louver component 110. Also, the long shape-changing member 130 and the short shape-changing member 140 have the same external cross-sectional shape perpendicular to the axial direction, but differ in their axial length. Similarly, the long shape-changing member 132 and the short shape-changing member 142 have the same external cross-sectional shape perpendicular to the axial direction, but differ in their axial length, and the long shape-changing member 134 and the short shape-changing member 144 have the same external cross-sectional shape perpendicular to the axial direction, but differ in their axial length.

[0037] The long shape-changing members 130, 132, and 134 refer to those whose total length is the same as the total length in the axial direction of the base materials 120 and 122, while the short shape-changing members 140, 142, and 144 refer to those whose total length is shorter than the total length in the axial direction of the base materials 120 and 122. Note that the lengths of the short shape-changing members 140, 142, and 144 are not the same, and there are multiple types of designs as described later.

[0038] In the following descriptions of shape, unless otherwise specified, the shape is viewed from the axial direction. Similarly, unless otherwise specified, the description of cross-sectional shape is a cross-sectional shape perpendicular to the axial direction.

[0039] As shown in Figure 6(A), the base material 120 is a concave cylindrical member with a rectangular base 120A that is long in the X direction, from which protrusions 120B protrude from both sides. As shown in Figure 6(B), the base material 122 is a rectangular cylindrical member that is long in the X direction. As shown in Figure 6(C), the long shape-changing member 130 and the short shape-changing member 140 are convex cylindrical members with protrusions 130B and 140B protruding from the central parts of the bases 130A and 140A. As shown in Figure 6(D), the long shape-changing member 132 and the short shape-changing member 142 are a pair of rectangular cylindrical members that are long in the Y direction. As shown in Figure 6(E), the long shape-changing member 134 and the short shape-changing member 144 are semicircular cylindrical members.

[0040] As shown in Figure 7(A), the protrusions 130B and 140B of the long shape-changing member 130 and the short shape-changing member 140 (see Figure 6(C)) are positioned and joined between the protrusions 120B of the base material 120 (see Figure 6(A)). The cross-sectional shape in Figure 7(A) is referred to as cross-sectional shape 200 (see also Figure 8(A)). Furthermore, as shown in Figure 7(B), the cross-sectional shape consisting only of the base material 120 (see Figure 6(A)) is referred to as cross-sectional shape 202A. When the short shape-changing member 140 is joined to the base material 120, the cross-sectional shape of the part to which the short shape-changing member 140 is joined is cross-sectional shape 200, and the cross-sectional shape of the part not joined is cross-sectional shape 202A.

[0041] As shown in Figure 7(C), one of the long shape-changing member 132 and one of the short shape-changing member 142 (see Figure 6(D)) are joined to both sides of the base material 122 (see Figure 6(B)) in the X direction. The cross-sectional shape of Figure 7(C) is referred to as cross-sectional shape 202B (see also Figure 8(B)).

[0042] Here, the cross-sectional shapes 202A in Figure 7(B) and 202B in Figure 7(C) are the same. Therefore, the case where there is no distinction is designated as cross-sectional shape 202 (see Figure 8(B)).

[0043] As shown in Figure 7(D), one of the long shape-changing member 134 and the short shape-changing member 144 (see Figure 6(E)) are joined to the base material 122 (see Figure 6(B)) on the front side in the Y direction (opposite side from the building 10). The cross-sectional shape in Figure 7(C) is referred to as the cross-sectional shape 204 (see also Figure 8(C)).

[0044] Furthermore, as shown in Figure 7(E), the cross-sectional shape of the structure consisting only of the base material 122 (see Figure 6(B)) is defined as cross-sectional shape 206 (see also Figure 8(D)). When the short shape-changing member 142 is joined to the base material 122, the cross-sectional shape of the part to which the short shape-changing member 142 is joined is cross-sectional shape 202B, and the cross-sectional shape of the part not joined is cross-sectional shape 206. Similarly, when the short shape-changing member 144 is joined to the base material 122, the cross-sectional shape of the part to which the short shape-changing member 144 is joined is cross-sectional shape 204, and the cross-sectional shape of the part not joined is cross-sectional shape 206.

[0045] Figure 8(A) is a perspective view showing the appearance of cross-sectional shape 200 (see Figure 7(A)). Figure 8(B) is a perspective view showing the appearance of cross-sectional shape 202 (see Figures 7(B) and 7(C)). Figure 8(C) is a perspective view showing the appearance of cross-sectional shape 204 (see Figure 7(D)). Figure 8(D) is a perspective view showing the appearance of cross-sectional shape 206 (see Figure 7(E)).

[0046] As explained in Figures 3 to 5, the louver components 110 are connected to each other by joint sleeves 105. As shown in Figure 3, the joint sleeves 105 are installed inside the hollow base materials 120 and 122 (see Figures 6(A) and 6(B)), and the louver components 110 are joined to each other by fastening the base materials 120 and 122 with screws. In addition, the fasteners 60 explained in Figures 4 and 5 are bolted to the base materials 120 and 122.

[0047] [Design composition of exterior louvers] Next, the design configuration of the exterior louvers 100 will be explained. Note that the design configuration described below is just one example and is not limited to this.

[0048] In this embodiment, the exterior louvers 100 can have their design configuration set by joining long shape-changing members 130, 132, 134 or short shape-changing members 140, 142, 144 to the outer surfaces of the base materials 120, 122.

[0049] In Figure 2, the louvers from left to right are designated 102A, 102B, 102C, 102D, and 102E, but when explaining without distinction, they will be referred to as louver 102. Also, the cantilever slabs 20 in Figure 2, from top to bottom, are designated 20A, 20B, 20C, 20D, 20E, and 20F, but when explaining without distinction, they will be referred to as cantilever slab 20.

[0050] Furthermore, the cross-sections of line 10A in Figure 2 are shown in Figure 10(A), line 10B in Figure 10(B), and line 10C in Figure 10(C). Similarly, the cross-sections of line 11A in Figure 2 are shown in Figure 11(A), line 11B in Figure 11(B), and line 11C in Figure 11(C).

[0051] • The first louver component from the top The uppermost louver component 110 of each louver 102 (the louver component 110 with its upper end portion 112 attached to the overhanging slab 20A) has a long shape-changing member 130 (see Figure 6(C)) joined to the base material 120 (see Figure 6(A)). Therefore, the uppermost louver component 110 of each louver 102 has a cross-sectional shape 200 along its entire length (see Figures 10(A), 7(A), and 8(A)).

[0052] • Second louver component from the top In the leftmost louver 102A, the second louver component 110 from the top (the louver component 110 with its upper end 112 attached to the overhanging slab 20B) has a short shape-changing member 140 joined to the base material 120. Therefore, the leftmost louver 102A has a cross-sectional shape 200 on the upper side (see Figures 7(A) and 8(A)) and a cross-sectional shape 202A on the lower side (see Figures 10(B), 7(B), and 8(B)).

[0053] In louvers 102B, 102C, 102D, and 102E, excluding the leftmost one, the second louver component 110 from the top has a long shape-changing member 130 (see Figure 6(A)) joined to the base material 120. Therefore, louvers 102B, 102C, 102D, and 102E have a cross-sectional shape 200 along their entire length (see Figures 10(B), 7(A), and 8(A)).

[0054] • Third louver component from the top The third louver component 110 from the top in the leftmost louver 102A (the louver component 110 with its upper end 112 attached to the overhanging slab 20C) has a long shape-changing member 132 (see Figure 6(D)) joined to the base material 122. Therefore, the leftmost louver 102A has a cross-sectional shape 202B (see Figures 10(C), 7(C), and 8(B)) along its entire length.

[0055] The third louver component 110 from the top in the second louver 102B from the left is composed solely of the base material 120 (see Figure 6(A)). Therefore, the second louver 102B from the left has a cross-sectional shape 202A throughout its entire length (see Figures 10(C), 7(B), and 8(B)).

[0056] In the third louver 102C from the left, the third louver component 110 from the top has a short shape-changing member 140 joined to the base material 120. Therefore, the leftmost louver 102A has a cross-sectional shape 200 on the upper side (see Figures 7(A) and 8(A)) and a cross-sectional shape 202A on the lower side (see Figures 10(C), 7(B), and 8(B)).

[0057] In the fourth and fifth louvers 102D and 102E from the left, the third louver component 110 from the top has a long shape-changing member 130 (see Figure 6(C)) joined to the base material 120 (see Figure 6(A)). Therefore, the top louver component 110 of each louver 102 has a cross-sectional shape 200 along its entire length (see Figures 10(C), 7(A), and 8(A)).

[0058] • Fourth louver component from the top The fourth louver component 110 from the top in the leftmost louver 102A (the louver component 110 with its upper end 112 attached to the overhanging slab 20C) has a long shape-changing member 134 (see Figure 6(E)) joined to the base material 122. Therefore, the leftmost louver 102A has a cross-sectional shape 204 (see Figures 11(A), 7(D), and 8(C)) along its entire length.

[0059] In the second louver 102B from the left, the fourth louver component 110 from the top has a short shape-changing member 142 (see Figure 6(C)) joined to the upper side of the base material 122 (see Figure 6(B)), and a short shape-changing member 144 (see Figure 6(E)) joined to the lower side. Therefore, the second louver 102A from the left has a cross-sectional shape 202B on the upper side (see Figures 7(C) and 8(C)) and a cross-sectional shape 204 on the lower side (see Figures 11(A), 7(D), and 8(C)).

[0060] In the third and fourth louvers 102C and 102D from the left, the fourth louver component 110 from the top has a long shape-changing member 132 (see Figure 6(D)) of the base material 122 (see Figure 6(B)) joined to it. Therefore, these louver components 110 have a cross-sectional shape 202B (Figures 11(A), 7(C), and 8(B)) along their entire length.

[0061] In the fifth louver from the left, the fourth louver component 110 from the top has a short shape-changing member 140 (see Figure 6(C)) joined to the base material 120 (see Figure 6(A)). Therefore, this louver component 110 has an upper cross-sectional shape 200 (see Figures 7(A) and 8(A)) and a lower cross-sectional shape 202A (see Figures 11(A), 7(B), and 8(B)).

[0062] • Fifth louver component from the top In the third louvers from the left, 102A, 102B, and 102C, the fifth louver component 110 from the top (the louver component 110 with its upper end 112 attached to the overhanging slab 20E) has a long shape-changing member 134 (see Figure 6(E)) joined to the base material 122 (see Figure 6(B)). Therefore, these louver components 110 have a cross-sectional shape 204 (Figures 11(B), 7(D), and 8(C)) along their entire length.

[0063] In the fourth louver 102D from the left, the fifth louver component 110 from the top has a short shape-changing member 142 (see Figure 6(C)) joined to the upper side of the base material 122 (see Figure 6(B)), and a short shape-changing member 144 (see Figure 6(E)) joined to the lower side. Therefore, the fourth louver 102A from the left has a cross-sectional shape 202B on the upper side (see Figures 7(C) and 8(C)) and a cross-sectional shape 204 on the lower side (see Figures 11(B), 7(D), and 8(C)).

[0064] In the fifth louver 102E from the left, the fifth louver component 110 from the top has a long shape-changing member 132 (see Figure 6(D)) joined to the base material 122 (see Figure 6(B)). Therefore, this louver component 110 has a cross-sectional shape 202B (Figures 11(B), 7(C), and 8(B)) along its entire length.

[0065] • The sixth (bottommost) louver component from the top. Here, the base material 122 of the sixth (bottommost) louver 102 (see Figure 6(B)) all have different overall lengths. Specifically, they get longer in the order of louver 102A, louver 102B, louver 102C, louver 102D, and louver 102E.

[0066] The sixth louver component 110 from the top in the leftmost louver 102A (the louver component 110 with its upper end 112 attached to the overhanging slab 20F) is composed solely of the base material 122 (see Figure 6(B)). Therefore, this louver component 110 has a cross-sectional shape 206 (Figures 11(C), 7(D), and 8(C)) along its entire length.

[0067] In the second and fourth louvers 102B and 102D from the left, the sixth louver component 110 from the top has a long shape-changing member 134 (see Figure 6(E)) joined to the base material 122. Therefore, these louver components 110 have a cross-sectional shape 204 (Figures 11(C), 7(E), and 8(D)) along their entire length.

[0068] In the third and fifth louvers from the left, 102C and 102E, the sixth louver component 110 from the top has a short shape-changing member 144 (see Figure 6(E)) joined to the upper side of the base material 122 (see Figure 6(B)). Therefore, the upper side of these louver components 110 has the cross-sectional shape 204 (Figures 11(C), 7(E), and 8(D)), and the lower side also has the cross-sectional shape 204 (Figures 7(E) and 8(D)).

[0069] • Overall design composition of the exterior louvers Figure 9 shows the overall design of the exterior louvers 100 shown in Figure 2, with different hatching applied to each cross-sectional shape (200, 202, 204, 206) to make it easier to understand. Therefore, the hatching in Figure 9 does not represent cross-sections.

[0070] Furthermore, as shown in Figure 2, adjacent louver components 110 with a cross-sectional shape 204 and louver components 110 with a cross-sectional shape 206 are connected by a connecting member 106.

[0071] [Effect] Next, the operation of this embodiment will be described.

[0072] In this embodiment, the exterior louvers 100 allow for a high degree of design freedom because the cross-sectional shape of the louvers 102 can be changed at any position in the axial direction by joining long shape-changing members 130, 132, 134 or short shape-changing members 140, 142, 144 to the outer surface of the base material 120, 122 of the louver component material 110 of each louver 102.

[0073] Furthermore, in the exterior louvers 100, adjacent louver components 110 with different cross-sectional shapes, specifically a louver component 110 with a cross-sectional shape 204 and a louver component 110 with a cross-sectional shape 206, are connected by a connecting member 106. Since the natural frequencies of the louver component 110 with a cross-sectional shape 204 and the louver component 110 with a cross-sectional shape 206 are different, vibration of the louver component 110 due to wind is effectively suppressed compared to the case where adjacent louver components have the same cross-sectional shape.

[0074] Furthermore, the lowest louver component 110 of each louver 102 of the exterior louver 100 has a free end at its lower end 114, making it susceptible to vibration in the wind. However, the lowest louver component 110 is connected by a connecting member 106, and its upper end 112 is attached to a bracket 50 provided on the upper surface 22 of the cantilever slab 20F as well as a bracket 50 provided on the lower surface 24 of the cantilever slab 20F, thus providing support at three points. Therefore, even though the lower end 114 of the louver component 110 is a free end, vibration due to wind is suppressed.

[0075] <Variation> In the above embodiment, the exterior louvers 100 are so-called vertical louvers in which a plurality of louvers 102 are arranged along the vertical direction (Z direction), but are not limited to this. They may also be so-called horizontal louvers in which the louvers 102 are arranged along the horizontal direction.

[0076] Therefore, next we will describe an exterior louver modification in which the louvers 102 are arranged along the horizontal direction.

[0077] The modified exterior louvers 300 shown in Figure 12 are configured by rotating the exterior louvers 100 in Figures 1 and 2 by 90°. That is, each louver 102 is arranged along the horizontal direction (X direction) and is arranged parallel to each other with spacing in the Z direction. However, the design configuration does not need to be the same. In the exterior louvers 300 of this embodiment, vertical members 230 are joined between the upper and lower overhanging slabs 20. The vertical members 230 are installed with spacing in the depth direction (Y direction) of Figure 12. The louvers 102 are provided with spacing in the vertical direction (Z direction) and are each attached to the vertical members 230 by brackets 250.

[0078] In the modified exterior louver 300, similar to the embodiment described above, a plurality of louver components 110 are connected together. One end of each louver component 110 in the axial direction is attached to the vertical member 230 by a bracket 250.

[0079] Furthermore, in the modified exterior louver 300, similar to the above embodiment, the louver component 110 can be configured by joining long shape-changing members 130, 132, 134 or short shape-changing members 140, 142, 144 to the outer surface of the base materials 120, 122. The connecting member 106 (see Figure 2) is provided along the vertical direction and reduces vibration caused by wind by connecting louver component 110 with different outer shapes.

[0080] <Other> Furthermore, the present invention is not limited to the embodiments described above.

[0081] For example, in the above embodiment and its modifications, the exterior louvers 100 are attached to the cantilever slab 20, and the exterior louvers 300 are attached to the vertical members 230 joined to the cantilever slab 20, but the invention is not limited to these. For example, the exterior louvers 100 may be attached to the steel frame substructure.

[0082] Furthermore, in the above embodiments and modifications, the shape-changing members consisted of two types of members with different lengths: long shape-changing members 130, 132, and 134, and short shape-changing members 140, 142, and 144. However, the invention is not limited to this. The shape-changing members may have only one length.

[0083] Furthermore, the present invention can be implemented in various forms without departing from the spirit of the invention. Embodiments and modifications can be combined as appropriate. [Explanation of Symbols]

[0084] 10 Buildings 12 Exterior Walls 20A Overhanging slab (an example of an overhanging section) 20B Overhanging slab (an example of an overhanging section) 20C Overhanging Slab (Example of an overhanging section) 20D Overhanging Slab (Example of an overhanging section) 20E Overhanging slab (an example of an overhanging section) 20F Overhanging slab (an example of an overhanging section) 22 Top side 24 Bottom side 50 Bracket (Example of upper and lower brackets) 100 Exterior Louvers 102A Louver 102B Louver 102C Louver 102D Louver 102E Louver 105 Joint Sleeve 106 Connecting material 110 Louver components 112 Upper end 114 Lower end 120 Base material 122 Base material 130 Long shape-changing member 132 Long shape-changing member 134 Long shape-changing member 140 Short-length shape-changing member 142 Short-length shape-changing member 144 Short-length shape-changing member 300 Exterior Louvers

Claims

1. An exterior louver, in which multiple louver components are connected in the axial direction, is arranged parallel to the outside of the building's exterior wall. The aforementioned louver components are The base material extending along the entire length of the louver component, A shape-changing member that can be bonded to the outer surface of the substrate and changes the cross-sectional shape of the louver, It is composed of having, Exterior louvers.

2. The louver components, which have adjacent cross-sectional shapes different from each other, are connected by a connecting member. Exterior louvers according to claim 1.

3. The aforementioned louvers are arranged along the vertical direction, Multiple louver components are attached to first brackets provided on the upper surface of the protruding portions that extend outwards from the respective outer walls, The louver component, whose lowest end is a free end, In addition to the first bracket whose upper end is provided on the upper surface of the protruding portion, it is also attached to a second bracket provided on the lower surface of the protruding portion. Exterior louvers according to claim 1 or claim 2.

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