Window grilles and buildings

Abstract

To provide a window grille, support member, and building that can improve the appearance of the outer corner of an exterior wall. [Solution] The window grille 6 is provided at the outer corner 14 of the outer wall 11. The window grille 6 comprises a first support member 31, a second support member 41, a first lattice member 51, a second lattice member 52, a third lattice member 53, and a connecting part 61. The first support member 31 is provided on the first surface 12A of the outer corner 14. The second support member 41 is provided on the second surface 13A of the outer corner 14. Multiple first lattice members 51 are provided on the first support member 31 and arranged parallel to each other. Multiple second lattice members 52 are provided on the second support member 41 and arranged parallel to each other. The third lattice member 53 is provided where the extension of the row of first lattice members 51 and the extension of the row of second lattice members 52 intersect. The connecting part 61 connects the first support member 31 or the second support member 41 to the third lattice member 53.

Description

Technical Field

[0001] This disclosure relates to child, lattice surfaces and buildings.

Background Art

[0002] Buildings having lattice surfaces are known. The lattice surfaces may be installed on the ground or provided on the outer wall. The lattice surface of Patent Document 1 is installed on the ground. The lattice surface of Patent Document 1 is bent in plan view. The lattice surface of Patent Document 1 has a corner connecting member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, there are cases where lattice surfaces are provided so as to cover both sides at the protruding corner of the outer wall of a building. In this case, a vertical lattice may be provided at the protruding corner of the outer wall. Specifically, a support member for supporting the lattice is provided on each of the two outer walls constituting the protruding corner. Then, the support member provided on one outer wall is extended to the protruding corner of the outer wall. Then, the lattice arranged at the protruding corner is attached to the extended portion of the support member. Since the lattice arranged at the protruding corner is attached to the extended support member, there is a possibility that it may be visually recognized as being in the same arrangement as a plurality of other lattices arranged on the support member. Then, at the protruding corner of the outer wall, the lattice surface of one outer wall is more conspicuous than the lattice surface of the other outer wall, so there is a possibility of causing a sense of discomfort when looking at the protruding corner as a whole.

Means for Solving the Problems

[0005] <了 (1) A window grille that solves the above problem is a window grille provided at an outer corner of an exterior wall, comprising: a first support member provided on a first surface which is one of the surfaces constituting the outer corner; a second support member provided on a second surface which is the other surface constituting the outer corner; a plurality of first lattice members provided on the first support member and arranged parallel to each other; a plurality of second lattice members provided on the second support member and arranged parallel to each other; a third lattice member provided at the intersection of the extension of the row of first lattice members and the extension of the row of second lattice members; and a connecting portion that connects the first support member or the second support member and the third lattice member.

[0006] In this configuration, the third lattice member is fixed by a connecting portion at the point where the extensions of both the first and second lattice members intersect. This reduces the likelihood that the third lattice member will be perceived as part of the other lattice arrangements on the support member, compared to the case where the third lattice member is directly placed on the support member. This improves the appearance of the corners of the exterior wall.

[0007] (2) In the lattice described in (1) above, the third lattice member is connected to the end of the first support member or the end of the second support member by the connecting portion, the end of the first support member is located at the intersection where the first support member and the second support member intersect, and the end of the second support member is located at the intersection.

[0008] In this configuration, the third grid member is connected to the end of the first support member or the end of the second support member at the intersection. The intersection corresponds to the corner formed by the first support member and the second support member. As a result, the third grid member is connected to the corner formed by the first support member and the second support member. This reduces the likelihood that the third grid member will be perceived as part of the other grid arrangements placed on the support member.

[0009] (3) In the lattice described in (2) above, the third lattice member is square in plan view, and the third lattice member has a first corner closest to the end of the first support member or the end of the second support member, and the third lattice member is connected to the connecting portion at the first corner.

[0010] This configuration allows for a reduction in the size of the connection points. This reduces the impact on the aesthetic design of the window grille due to the exposure of the connection points.

[0011] (4) In the grid described in (3) above, the first support member comprises a first support member body provided to extend laterally on the first surface and a first support portion provided along the longitudinal direction of the first support member body to support the first grid member, the second support member comprises a second support member body provided to extend laterally on the second surface and a second support portion provided along the longitudinal direction of the second support member body to support the second grid member, the connecting portion comprises an extension portion extending from the first support portion or the second support portion and two engaging pieces branching into two from the extension portion, and the third grid member is connected to the two engaging pieces.

[0012] In this configuration, the connecting portion extends from the first or second support portion. This allows the connecting portion to be integrally provided with the first or second support portion. Furthermore, the third lattice member is engaged with two engaging pieces. As a result, the third lattice member is more securely fixed at the outer corner when connected to two engaging pieces compared to when connected to one engaging piece.

[0013] (5) In the window grille described in any one of (1) to (4) above, the first support member and the second support member are integral. With this configuration, the window grille composed of the first support member and the first lattice member and the window grille composed of the second support member and the second lattice member are integral. This makes it possible to integrally provide the first lattice member, the second lattice member, the third lattice member, and the support member at the outer corner of the exterior wall.

[0014] (6) In the window grille described in any one of (1) to (4) above, the first support member and the second support member are separate. With this configuration, the window grille composed of the first support member and the first lattice member and the window grille composed of the second support member and the second lattice member are separate. As a result, the window grille composed of the first support member and the first lattice member and the window grille composed of the second support member and the second lattice member can be installed separately at the outer corner of the exterior wall. Therefore, the window grille can be positioned to match the shape of the outer corner of the exterior wall.

[0015] (7) In the grid described in any one of (1) to (6) above, the third grid member is arranged such that the distance between the third grid member and the adjacent first grid member is equal to the distance between the third grid member and the adjacent second grid member, the first width of the third grid member is equal to the first width of the first grid member, and the second width of the third grid member is equal to the second width of the second grid member.

[0016] In this configuration, the third lattice member is positioned such that the distance between it and both the adjacent first lattice member and the adjacent second lattice member is equal. Furthermore, the width of the third lattice member is equal to the width of the first and second lattice members. As a result, the third lattice member is perceived as part of a row of other first lattice members positioned on the first support member, and as part of a row of other second lattice members positioned on the second support member. Therefore, the appearance of the lattice can be improved at the corner where the third lattice member is positioned.

[0017] (8) In the grid described in any one of (1) to (7) above, the distance between the third grid member and the adjacent first grid member is shorter than the distance between the first grid members, and the distance between the third grid member and the adjacent second grid member is shorter than the distance between the second grid members.

[0018] This configuration allows for a smaller gap between the third lattice member and the adjacent first lattice member and the adjacent second lattice member. This makes the connection points that connect the third lattice member less visible from the outside. Therefore, the appearance of the lattice can be improved at the corners where the third lattice member is placed.

[0019] (9 ) Reference The support member is a support member that supports a first lattice member, a second lattice member, and a third lattice member, and comprises a first support member and a second support member, wherein the first support member comprises a first support member body provided so as to extend laterally on a first surface which is one surface constituting an outer corner of the outer wall, and a first support portion provided so as to be along the longitudinal direction of the first support member body and supporting the first lattice member, and the second support member comprises a second support member body provided so as to extend laterally on a second surface which is the other surface constituting the outer corner of the outer wall, and a second support portion provided so as to be along the longitudinal direction of the second support member body and supporting the second lattice member, and the first support member or the second support member has a connecting portion, the connecting portion connects the first support member or the second support member to the third lattice member, and the first support member and the second support member are connected.

[0020] With this configuration, the support member can support the first lattice member, the second lattice member, and the third lattice member. Furthermore, the connecting portion can be provided integrally with the first support portion or the second support portion. In addition, the support member is configured such that the first support member and the second support member are integrated. As a result, the first lattice member, the second lattice member, the third lattice member, and the support member can be provided integrally at the outer corner of the exterior wall.

[0021] (10 ) ReferenceThe support member is a support member that supports the first grid member, the second grid member, and the third grid member, and includes a first support member and a second support member. The first support member includes a first support member main body provided to extend horizontally on a first surface which is one surface constituting the outer corner portion of the outer wall, and a first support portion provided along the longitudinal direction of the first support member main body to support the first grid member. The second support member includes a second support member main body provided to extend horizontally on a second surface which is the other surface constituting the outer corner portion of the outer wall, and a second support portion provided along the longitudinal direction of the second support member main body to support the second grid member. The first support member or the second support member has a connection portion, and the connection portion connects the first support member or the second support member and the third grid member, and the first support member and the second support member are separate bodies.

[0022] According to this configuration, the support member can support the first grid member, the second grid member, and the third grid member. Also, the connection portion can be provided integrally with the first support portion or the second support portion. Furthermore, the support member is configured such that the first support member and the second support member are separate bodies. Thereby, the surface grid constituted by the first support member and the first grid member and the surface grid constituted by the second support member and the second grid member can be provided separately at the outer corner portion of the outer wall. For this reason, the surface grid can be arranged according to the shape of the outer corner portion of the outer wall.

[0023] (11) The building that solves the above problems includes an outer wall having an outer corner portion, and the surface grid according to any one of (1) to (8) provided at the outer corner portion. According to this configuration, the appearance of the outer corner portion of the building can be improved.

Effect of the Invention

[0024] According to the surface grid, the support member, and the building of the present disclosure, the appearance of the outer corner portion of the outer wall can be improved.

Brief Description of the Drawings

[0025] [Figure 1]This is a perspective view of the building. [Figure 2] This is a side view of the building. [Figure 3] This is a cross-sectional view of the corner portion of the first embodiment. [Figure 4] This is a perspective view of the support member and mounting member of the first embodiment. [Figure 5] This is a perspective view of the support member, first lattice member, second lattice member, and third lattice member of the first embodiment. [Figure 6] This is a perspective view of the support member of the first embodiment. [Figure 7] This is a diagram illustrating the assembly method of a window grille. [Figure 8] This is a diagram illustrating the assembly method of a window grille. [Figure 9] This is a cross-sectional view of the corner portion of the second embodiment. [Figure 10] This is a perspective view of the support member and mounting member of the second embodiment. [Figure 11] This is a perspective view of the support member, first lattice member, second lattice member, and third lattice member of the second embodiment. [Figure 12] This is a perspective view of the support member of the second embodiment. [Figure 13] This is a cross-sectional view of a modified example of a window grille. [Modes for carrying out the invention]

[0026] <First Embodiment> Referring to Figures 1 to 8, the window grille 6, support member 21, and building 1 of this embodiment will be described. Examples of building 1 include detached houses, apartment buildings, commercial facilities, and public facilities. The building 1 described in this embodiment is a detached house.

[0027] [Buildings] As shown in Figures 1 and 2, the building 1 comprises a foundation 2, a building body 3, a roof 4, a balcony 5, and a window grille 6. The balcony 5 is located on the outside of the building body 3. In this embodiment, the balcony 5 is configured as a roof balcony. In this embodiment, the balcony 5 is located on the roof of the first floor of the building 1. The balcony 5 connects to a room on the second floor. The balcony 5 comprises a floor section 5A and a rising wall 5B. The rising wall 5B is provided along the outer edge of the floor section 5A. The rising wall 5B is provided to prevent falls from the balcony 5.

[0028] [Plane grid] As shown in Figures 1 and 2, the window grille 6 is installed at the outer corner 14 of the exterior wall 11. The exterior wall 11 on which the window grille 6 is installed includes the exterior wall of the main building 3, the exterior wall of the veranda, and the exterior wall that constitutes the exterior drainage channel. The exterior wall of the veranda is the rising wall 5B of the veranda. An example of an exterior wall that constitutes the exterior drainage channel is a fence. In this embodiment, the exterior wall 11 refers to the rising wall 5B of the veranda.

[0029] The exterior wall 11 of the veranda has a corner section 14. The corner section 14 is composed of a first exterior wall 12 and a second exterior wall 13. In plan view, the second exterior wall 13 is perpendicular to the first exterior wall 12. The first exterior wall 12 has a first surface 12A. The first surface 12A is one of the surfaces that make up the corner section 14. The second exterior wall 13 has a second surface 13A. The second surface 13A is the other surface that makes up the corner section 14.

[0030] The window grille 6 is made up of multiple components. The window grille 6 is installed on the exterior wall 11 as a design element of the building 1's exterior. Specifically, it is installed so as to extend across the first exterior wall 12 and the second exterior wall 13.

[0031] As shown in Figure 3, the window grille 6 comprises a first support member 31, a second support member 41, a first lattice member 51, a second lattice member 52, a third lattice member 53, and a connecting portion 61. In this embodiment, the first support member 31, the second support member 41, and the connecting portion 61 are integrally constructed. The first support member 31, the second support member 41, and the connecting portion 61 constitute a single support member 21.

[0032] In this embodiment, the window grille 6 comprises two support members 21. The two support members 21 are arranged at an external corner with a vertical gap between them. The first grille member 51, the second grille member 52, and the third grille member 53 are supported by the two support members 21.

[0033] [First support member] As shown in Figure 3, the first support member 31 is provided on the first surface 12A of the first outer wall 12.

[0034] As shown in Figures 3 to 6, the first support member 31 comprises a first support member body 32 and a first support portion 35. The first support member body 32 is provided to extend in the lateral direction DX1 along the first surface 12A. The first support member body 32 comprises a first portion 33 and a second portion 34. The first portion 33 is positioned perpendicular to the first surface 12A of the first outer wall 12 and extends in the lateral direction DX1 along the first surface 12A. The second portion 34 extends upward from the first end portion 33A, which is the end of the first portion 33 closest to the first outer wall 12 in the width direction DW1. The second portion 34 is positioned along the first surface 12A of the first outer wall 12. The second portion 34 is provided with a taper 91. The taper 91 is provided at the end of the second portion 34 closest to the corner portion 14.

[0035] As shown in Figures 3 and 4, the first support member 31 is supported by a mounting member 81. The mounting member 81 consists of a mounting member body 82 and a cover portion 85. The mounting member body 82 has a base portion 83 and a mounting portion 84. The end of the base portion 83 is fixed to the column 7. The base portion 83 extends from the column 7 toward the first outer wall 12. The base portion 83 protrudes from between the two panels that make up the first outer wall 12. The mounting portion 84 is provided at the end of the base portion 83 that protrudes from between the two panels that make up the first outer wall 12. The mounting portion 84 is provided at the end of the base portion 83 such that the portion including the mounting portion 84 and the base portion 83 forms a T shape in plan view. The mounting portion 84 is a plate member. The mounting portion 84 has a front surface 84A and a rear surface 84B. The front surface 84A is the surface facing the same direction as the first surface 12A of the first outer wall 12. The rear surface 84B is the surface opposite to the front surface 84A. The mounting portion 84 is positioned parallel to the first outer wall 12 and with the rear surface 84B facing the first outer wall 12. The cover portion 85 is a member that covers the exposed portion of the mounting member body 82. The cover portion 85 comprises a front portion 85A and an upper portion 85B. The front portion 85A is the surface facing the same direction as the first surface 12A of the first outer wall 12. The front portion 85A is positioned along the front surface 84A of the mounting portion 84. The upper portion 85B is connected to the front portion 85A and extends in the width direction DW1. The upper portion 85B is positioned along the upper end 84C of the mounting portion 84. A sealing member 92 is applied between the cover portion 85 and the first outer wall 12 to fill the gap. When the first support member 31 is attached to the first outer wall 12 by the mounting member 81, the first support member body 32 of the first support member 31 is positioned along the upper surface portion 85B of the cover portion 85. As a result, the first support member body 32 is supported by the mounting member 81 via the cover portion 85.

[0036] As shown in Figures 3 to 6, the first support portion 35 is provided along the longitudinal direction of the first support member body 32. Specifically, it extends downward from the second end portion 33B of the first part 33 of the first support member body 32. The second end portion 33B is the end opposite to the first end portion 33A of the first part 33 of the first support member body 32 in the width direction DW1. The first support portion 35 extends along the longitudinal direction of the first support member body 32. The first support portion 35 comprises a front surface 35A and a rear surface 35B. The front surface 35A is the surface facing the same direction as the first surface 12A of the first outer wall 12. The rear surface 35B of the first support portion 35 is in contact with the front surface 85A of the cover portion 85.

[0037] As shown in Figures 3 and 5, the first support portion 35 supports the first grid member 51. Figure 5 shows a grid 6 in which the first grid member 51, the second grid member 52, and the third grid member 53 are cut at the same height as the first portion 33 of the first support portion 31. The first grid member 51 is a rectangular columnar member. The first grid member 51 has a front surface 51A and a rear surface 51B. The front surface 51A is the surface facing the same direction as the first surface 12A of the first outer wall 12. The rear surface 51B is the surface facing the first surface 12A of the first outer wall 12. The first grid member 51 is positioned so that its rear surface 51B is in contact with the front surface 35A of the first support portion 35. The first grid member 51 is fixed to the first support portion 35 by screws 93.

[0038] As shown in Figures 3 and 5, a plurality of first grid members 51 are provided on the first support member 31. The plurality of first grid members 51 are arranged parallel to each other. Specifically, the first grid members 51 are provided on the first support member 31 at predetermined intervals.

[0039] [Second support member] As shown in Figure 3, the second support member 41 is provided on the second surface 13A of the second outer wall 13.

[0040] As shown in Figures 3 to 6, the second support member 41 comprises a second support member body 42 and a second support portion 45. The second support member body 42 is provided to extend laterally in the direction DX2 along the second surface 13A. The second support member body 42 comprises a third portion 43 and a fourth portion 44. The third portion 43 is positioned perpendicular to the second surface 13A of the second outer wall 13 and extends laterally in the direction DX2 along the second surface 13A. The fourth portion 44 extends upward from the third end portion 43A, which is the end of the third portion 43 closest to the second outer wall 13 in the width direction DW2. The fourth portion 44 is positioned along the second surface 13A of the second outer wall 13. The fourth portion 44 is provided with a taper 91. The taper 91 is provided at the end of the fourth portion 44 closest to the corner portion 14.

[0041] As shown in Figures 3 and 4, the second support member body 42 is supported by the mounting member 81. The mounting member 81 has the same configuration as described for the first support member 31. The second support member body 42 is positioned along the upper surface portion 85B of the cover portion 85. As a result, the second support member body 42 is supported by the mounting member 81 via the cover portion 85.

[0042] As shown in Figures 3 to 6, the second support portion 45 is provided along the longitudinal direction of the second support member body 42. Specifically, it extends from the fourth end 43B of the third portion 43 of the second support member body 42. The fourth end 43B is the end opposite to the third end 43A of the third portion 43 of the second support member body 42. The second support portion 45 is positioned along the longitudinal direction of the second support member body 42. The second support portion 45 comprises a front surface 45A and a rear surface 45B. The front surface 45A is the surface facing the same direction as the second surface 13A of the second outer wall 13. The rear surface 45B is the surface facing the second surface 13A of the second outer wall 13. The front portion 85A of the cover portion 85 is in contact with the rear surface 45B of the second support portion 45.

[0043] As shown in Figures 3 and 5, the second support portion 45 supports the second lattice member 52. The second lattice member 52 is a rectangular columnar member. The second lattice member 52 has a front surface 52A and a rear surface 52B. The front surface 52A is the surface facing the same direction as the second surface 13A of the second outer wall 13. The rear surface 52B is the surface facing the second surface 13A of the second outer wall 13. The second lattice member 52 is positioned so that its rear surface 52B and the front surface 45A of the second support portion 45 are in contact.

[0044] As shown in Figures 3 and 5, a plurality of second grid members 52 are provided on the second support member 41. The plurality of second grid members 52 are arranged parallel to each other. Specifically, the second grid members 52 are provided on the second support member 41 at predetermined intervals.

[0045] [Intersection of support members] As shown in Figures 3 to 6, the end 31A of the first support member 31 in the longitudinal direction is located at the intersection 71. The end 41A of the second support member 41 in the longitudinal direction is located at the intersection 71. The intersection 71 is the part where the first support member 31 and the second support member 41 intersect. Specifically, the end 35C of the first support portion 35 of the first support member 31 in the longitudinal direction is located at the intersection 71. The end 45C of the second support portion 45 of the second support member 41 in the longitudinal direction is located at the intersection 71.

[0046] As shown in Figures 3 and 4, the first support member 31 and the second support member 41 are integrated. Specifically, the first portion 33 of the first support member body 32 and the third portion 43 of the second support member body 42 are connected.

[0047] [Connection part] As shown in Figures 3 to 6, the connecting portion 61 comprises an extension portion 62 and two engaging pieces 63. The extension portion 62 extends from the first support portion 35 or the second support portion 45. The extension portion 62 extends from the end portion 31A of the first support member 31. In one example, the extension portion 62 is formed by bending the extension portion of the first support portion 35 of the first support member 31. The extension portion 62 is made of a plate-like member and extends from the end portion 35C of the first support portion 35 such that the end face of the plate-like member faces vertically. In one example, in a plan view, the extension portion 62 extends in a direction 135 degrees with respect to the direction in which the first support portion 35 extends. In this embodiment, the extension portion 62 extends from the end portion of the first support portion 35 of the first support member 31 that is close to the outer corner portion 14. The extension portion 62 extends diagonally away from the outer corner portion 14. The vertical dimension of the extension 62 is the same as the short-side dimension of the first support 35.

[0048] As shown in Figures 3 to 6, the two engaging pieces 63 branch off from the end 62A of the extension 62. The two engaging pieces 63 are composed of a first engaging piece 63A and a second engaging piece 63B. The first engaging piece 63A and the second engaging piece 63B branch off from the end 62A of the extension 62, with the central part in the vertical direction as the boundary. The vertical dimensions of the first engaging piece 63A and the second engaging piece 63B are half the vertical width of the extension 62. The first engaging piece 63A extends so as to bend from the end 62A of the extension 62 toward the first support member 31. The second engaging piece 63B extends so as to bend from the end 62A of the extension 62 toward the second support member 41.

[0049] [Third lattice member] As shown in Figures 3 and 5, the third grid member 53 is square in plan view. Specifically, the third grid member 53 is a square columnar member. The third grid member 53 has a first corner 53A. In the third grid member 53, the first corner 53A is the part closest to the end 31A of the first support member 31 or the end 41A of the second support member 41. The third grid member 53 is connected to the connecting portion 61 at the first corner 53A.

[0050] The dimensions of the third grid member 53 are configured as follows: The first width of the third grid member 53 is equal to the first width of the first grid member 51. The second width of the third grid member 53 is equal to the second width of the second grid member 52. The first width of the first grid member 51 is the width of the first grid member 51 in the lateral direction DX1. The second width of the second grid member 52 is the width of the second grid member 52 in the lateral direction DX2. The first width of the third grid member 53 is the width of the third grid member 53 in the lateral direction DX1. The second width of the third grid member 53 is the width of the third grid member 53 in the lateral direction DX2. The first width of the third grid member 53 is smaller than the vertical width of the first grid member 51. The second width of the third grid member 53 is smaller than the vertical width of the second grid member 52. The vertical width of the first grid member 51 is the width of the first grid member 51 in the width direction DW1. The vertical width of the second grid member 52 is the width DW2 of the second grid member 52.

[0051] The first grid member 51 comprises a first side surface 51C and a second side surface 51D. The first side surface 51C is the side surface that faces the direction of the intersection 71 when the first grid member 51 is placed on the first support member 31. The second side surface 51D is the surface opposite to the first side surface 51C. The second grid member 52 comprises a third side surface 52C and a fourth side surface 52D. The third side surface 52C is the surface that faces the direction of the intersection 71 when the second grid member 52 is placed on the second support member 41. The fourth side surface 52D is the surface opposite to the third side surface 52C. The third grid member 53 is positioned where the extension of the arrangement of the first grid members 51 intersects with the extension of the arrangement of the second grid members 52. The extension of the arrangement of the first grid members 51 is the extension of the surface that passes through the centerlines of the first side surface 51C and the second side surface 51D of the multiple first grid members 51. The extension of the arrangement of the second grid members 52 is the extension of the plane passing through the centerlines of the third side surface 52C and the fourth side surface 52D of the multiple second grid members 52. The third grid member 53 comprises a first surface 53B, a second surface 53C, a third surface 53D, and a fourth surface 53E. The first surface 53B is the surface facing the first side surface 51C of the first grid member 51. The second surface 53C is the surface facing the third side surface 52C of the second grid member 52. The third surface 53D is the surface opposite to the first surface 53B. The fourth surface 53E is the surface opposite to the second surface 53C. The first surface 53B is positioned parallel to the first side surface 51C and the second side surface 51D so as to be aligned with the first side surface 51C and the second side surface 51D of the first grid member 51. The second surface 53C is positioned parallel to the third side surface 52C and the fourth side surface 52D of the second grid member 52, so as to align with them.

[0052] As shown in Figures 3 and 5, the third grid member 53 is positioned such that the distance between the third grid member 53 and the adjacent first grid member 51 is equal to the distance between the third grid member 53 and the adjacent second grid member 52. Specifically, the distance between the first face 53B of the third grid member 53 and the first side surface 51C of the adjacent first grid member 51 is equal to the distance between the second face 53C of the third grid member 53 and the third side surface 52C of the second grid member 52. The distance between the third grid member 53 and the adjacent first grid member 51 is shorter than the distance between the first grid members 51. Specifically, the distance between the first face 53B of the third grid member 53 and the first side surface 51C of the adjacent first grid member 51 is shorter than the distance between the first side surface 51C and the second side surface 51D of adjacent first grid members 51. The distance between the third grid member 53 and the adjacent second grid member 52 is shorter than the distance between the second grid members 52. Specifically, the distance between the second surface 53C of the third lattice member 53 and the third side surface 52C of the adjacent second lattice member 52 is shorter than the distance between the third side surface 52C and the fourth side surface 52D of adjacent second lattice members 52.

[0053] As shown in Figures 3 and 5, the connecting portion 61 connects the first support member 31 or the second support member 41 to the third grid member 53. The third grid member 53 is connected by the connecting portion 61 to the end 31A of the first support member 31 or the end 41A of the second support member 41. The third grid member 53 is connected to a connecting portion 61 extending from the end 35C of the first support member 35 at the intersection 71. The third grid member 53 is coupled to two engaging pieces 63 of the connecting portion 61. That is, the third grid member 53 is coupled to the first engaging piece 63A and the second engaging piece 63B. The third grid member 53 and the first engaging piece 63A and the second engaging piece 63B are fixed together by screws 93.

[0054] [How to assemble window grilles] The assembly method of the window grille 6 will be explained with reference to Figures 7 and 8.

[0055] As shown in Figure 7, first, the third grid member 53 is fixed to the connecting portion 61 extending from the first support portion 35 at the intersection 71. The first surface 53B of the third grid member 53 is positioned to contact the first engaging piece 63A. The second surface 53C of the third grid member 53 is positioned to contact the second engaging piece 63B. The third grid member 53 and the first engaging piece 63A and the second engaging piece 63B are fixed together by screws 93.

[0056] As shown in Figure 8, the first lattice member 51 and the second lattice member 52 are then positioned after the third lattice member 53 is fixed to the connecting part 61. Specifically, the first lattice member 51 adjacent to the third lattice member 53 is fixed to the first support part 35 by screws 93. The second lattice member 52 adjacent to the third lattice member 53 is fixed to the second support part 45 by screws 93.

[0057] The spacing between the first grid member 51 and the third grid member 53, and the spacing between the second grid member 52 and the third grid member 53, may be so narrow that it becomes difficult to operate the screw installation tool. In such cases, as described above, the third grid member 53 is first fixed to the connecting portion 61. After this, the first grid member 51 adjacent to the third grid member 53 is fixed to the first support portion 35, and the second grid member 52 adjacent to the third grid member 53 is fixed to the second support portion 45.

[0058] [Operation of this embodiment] The operation of this embodiment will now be explained. The lattice 6 provided at the corner 14 of the exterior wall 11 comprises a first support member 31, a second support member 41, a first lattice member 51, a second lattice member 52, a third lattice member 53, and a connecting portion 61. The first support member 31 is provided on the first surface 12A, which is one of the surfaces constituting the corner 14. The second support member 41 is provided on the second surface 13A, which is the other surface constituting the corner 14. The third lattice member 53 is positioned where the extension of the row of first lattice members 51 intersects with the extension of the row of second lattice members 52. The connecting portion 61 connects the first support member 31 and the third lattice member 53.

[0059] In this configuration, the third lattice member 53 is fixed by the connecting portion 61 at the point where the extensions of both the first lattice member 51 and the second lattice member 52 intersect. This reduces the likelihood that the third lattice member 53 may be perceived as part of the other lattice arrangements on the support member 21, compared to the case where the third lattice member 53 is directly placed on the support member 21. This improves the appearance of the outer corner portion 14 of the outer wall 11.

[0060] Furthermore, the third lattice member 53 is positioned by the connecting portion 61 so as to be away from both the front surface 35A of the first support portion 35 of the first support member 31 and the front surface 45A of the second support portion 45 of the second support member 41. This improves the appearance of the outer corner portion 14 of the outer wall 11.

[0061] Furthermore, since the connecting portion 61 is composed of a plate-like member positioned so that its end face faces upward or downward, it is easily concealed by the third lattice member 53. As a result, the connecting portion 61 is difficult to see. This improves the appearance of the outer corner portion 14 of the outer wall 11.

[0062] [Effects of this embodiment] The effects of this embodiment will now be explained. (1) The lattice 6 provided on the outer corner 14 of the outer wall 11 comprises a first support member 31, a second support member 41, a first lattice member 51, a second lattice member 52, a third lattice member 53, and a connecting part 61. The first support member 31 is provided on the first surface 12A, which is one of the surfaces constituting the outer corner 14. The second support member 41 is provided on the second surface 13A, which is the other surface constituting the outer corner 14. Multiple first lattice members 51 are provided on the first support member 31 and arranged parallel to each other. Multiple second lattice members 52 are provided on the second support member 41 and arranged parallel to each other. The third lattice member 53 is provided where the extension of the row of first lattice members 51 and the extension of the row of second lattice members 52 intersect. The connecting part 61 connects the first support member 31 or the second support member 41 to the third lattice member 53.

[0063] In this configuration, the third lattice member 53 is fixed by the connecting portion 61 at the point where the extensions of both the first lattice member 51 and the second lattice member 52 intersect. This reduces the likelihood that the third lattice member 53 may be perceived as part of the other lattice arrangements on the support member 21, compared to the case where the third lattice member 53 is directly placed on the support member 21. This improves the appearance of the outer corner portion 14 of the outer wall 11.

[0064] (2) In the lattice 6 provided at the outer corner 14 of the outer wall 11, the third lattice member 53 is connected to the end 31A of the first support member 31 or the end 41A of the second support member 41. The end 31A of the first support member 31 is located at the intersection 71 where the extension of the first support member 31 and the extension of the second support member 41 intersect, and the end 41A of the second support member 41 is located at the intersection 71.

[0065] In this configuration, the third grid member 53 is connected at the intersection 71 to the end 31A of the first support member 31 or the end 41A of the second support member 41. The intersection 71 corresponds to the corner formed by the first support member 31 and the second support member 41. As a result, the third grid member 53 is connected to the corner formed by the first support member 31 and the second support member 41. This reduces the likelihood that the third grid member 53 may be perceived as part of the other grid arrangements placed on the support member 21.

[0066] (3) In the window grille 6 provided at the outer corner 14 of the exterior wall 11, the third grille member 53 is square in plan view. The third grille member 53 has a first corner 53A that is closest to the end 31A of the first support member 31 or the end 41A of the second support member 41. The third grille member 53 is connected to the connecting portion 61 at the first corner 53A. With this configuration, the size of the connecting portion 61 can be reduced. This reduces the impact on the aesthetic appearance of the window grille 6 due to the exposure of the connecting portion 61.

[0067] (4) In the lattice 6 provided at the outer corner 14 of the outer wall 11, the first support member 31 comprises a first support member body 32 and a first support portion 35. The first support member body 32 is provided so as to extend in the lateral direction DX1 on the first surface 12A. The first support portion 35 is provided so as to be along the longitudinal direction of the first support member body 32 and supports the first lattice member 51. The second support member 41 comprises a second support member body 42 and a second support portion 45. The second support member body 42 is provided so as to extend in the lateral direction DX2 on the second surface 13A. The second support portion 45 is provided so as to be along the longitudinal direction of the second support member body 42 and supports the second lattice member 52. The connecting portion 61 comprises an extension portion 62 extending from the first support portion 35 or the second support portion 45 and two engaging pieces 63 branching off from the extension portion 62. The third lattice member 53 is connected to the two engaging pieces 63.

[0068] In this configuration, the connecting portion 61 extends from the first support portion 35 or the second support portion 45. This allows the connecting portion 61 to be provided integrally with the first support portion 35 or the second support portion 45. Furthermore, the third lattice member 53 is engaged with two engaging pieces 63. As a result, the third lattice member 53 is more securely fixed at the outer corner portion 14 when it is connected to two engaging pieces 63 compared to when it is connected to one engaging piece 63.

[0069] (5) In the window grille 6 provided at the outer corner 14 of the outer wall 11, the first support member 31 and the second support member 41 are integrally formed. With this configuration, the window grille 6 composed of the first support member 31 and the first lattice member 51 and the window grille 6 composed of the second support member 41 and the second lattice member 52 are integrally formed. This makes it possible to integrally provide the first lattice member 51, the second lattice member 52, the third lattice member 53, and the support member 21 at the outer corner 14 of the outer wall 11.

[0070] (6) In the lattice 6 provided at the corner 14 of the outer wall 11, the third lattice member 53 is arranged such that the distance between the third lattice member 53 and the adjacent first lattice member 51 is equal to the distance between the third lattice member 53 and the adjacent second lattice member 52. The first width of the third lattice member 53 is equal to the first width of the first lattice member 51, and the second width of the third lattice member 53 is equal to the second width of the second lattice member 52.

[0071] In this configuration, the third lattice member 53 is positioned such that the distance between it and both the adjacent first lattice member 51 and the adjacent second lattice member 52 is equal. Also, the width of the third lattice member 53 is equal to the width of the first lattice member 51 and the second lattice member 52. As a result, the third lattice member 53 is perceived as part of a row of other first lattice members 51 positioned on the first support member 31, and as part of a row of other second lattice members 52 positioned on the second support member 41. Therefore, the appearance of the lattice 6 can be improved at the corner 14 where the third lattice member 53 is positioned.

[0072] (7) In the lattice 6 provided at the corner 14 of the exterior wall 11, the distance between the third lattice member 53 and the adjacent first lattice member 51 is shorter than the distance between the first lattice members 51. The distance between the third lattice member 53 and the adjacent second lattice member 52 is shorter than the distance between the second lattice members 52.

[0073] This configuration allows for a smaller gap between the third lattice member 53 and the adjacent first lattice member 51 and the adjacent second lattice member 52. This makes the connecting portion 61 that connects the third lattice member 53 less visible from the outside. As a result, the appearance of the lattice 6 can be improved at the corner portion 14 where the third lattice member 53 is placed.

[0074] (8) The support member 21 that supports the first lattice member 51, the second lattice member 52, and the third lattice member 53 comprises a first support member 31 and a second support member 41. The first support member 31 comprises a first support member body 32 and a first support portion 35. The first support member body 32 is provided so as to extend in the lateral direction DX1 on the first surface 12A, which is one of the surfaces constituting the corner portion 14 of the outer wall 11. The first support portion 35 is provided so as to be along the longitudinal direction of the first support member body 32 and supports the first lattice member 51. The second support member 41 comprises a second support member body 42 and a second support portion 45. The first support member body 32 is provided so as to extend in the lateral direction DX2 on the second surface 13A, which is the other surface constituting the corner portion 14 of the outer wall 11. The second support portion 45 is provided along the longitudinal direction of the second support member body 42 and supports the second grid member 52. The first support member 31 or the second support member 41 has a connecting portion 61 extending from the first support portion 35 or the second support portion 45. The connecting portion 61 connects the first support member 31 or the second support member 41 to the third grid member 53. The first support member 31 and the second support member 41 are connected.

[0075] With this configuration, the support member 21 can support the first lattice member 51, the second lattice member 52, and the third lattice member 53. The connecting portion 61 can be provided integrally with the first support portion 35 or the second support portion 45. Furthermore, the support member 21 is configured such that the first support member 31 and the second support member 41 are integrated. As a result, the first lattice member 51, the second lattice member 52, the third lattice member 53, and the support member 21 can be provided integrally at the outer corner portion 14 of the outer wall 11.

[0076] (9) The building 1 comprises an exterior wall 11 having an outer corner 14 and the above-mentioned grille 6 provided on the outer corner 14. This configuration improves the appearance of the outer corner 14 of the building 1.

[0077] <Second Embodiment> Referring to Figures 9 to 12, the building 1 and support member 22 according to the second embodiment will be described. In this embodiment, components common to the first embodiment are denoted by the same reference numerals as in the first embodiment, and the description of redundant components is omitted.

[0078] In the first embodiment, the first portion 33 of the first support member body 32 and the third portion 43 of the second support member body 42 are configured to be integrated, but in this embodiment, the first support member 31 and the second support member 41 are configured to be separate. Specifically, the first portion 33 of the first support member body 32 and the third portion 43 of the second support member body 42 are separated at the intersection 71. In one example, the first support member 31 and the connecting portion 61 are configured as a single member. The second support member 41 is configured as a separate member from the member having the first support member 31 and the connecting portion 61. The member having the first support member 31 and the connecting portion 61 and the member including the second support member 41 together constitute the support member 22. Specifically, the connecting portion 61 extends from the end portion 35C of the first support member 35 at the intersection 71. The third lattice member 53 is connected to the end portion 31A of the first support member 31 by the connecting portion 61. Specifically, the third lattice member 53 is connected to the end portion 35C of the first support portion 35 at the intersection 71 by the connecting portion 61.

[0079] In other examples, the second support member 41 and the connecting portion 61 are configured as a single component. The first support member 31 is configured as a separate component from the component containing the second support member 41 and the connecting portion 61. The component having the second support member 41 and the connecting portion 61, and the component containing the first support member 31, together constitute the support member 22.

[0080] <Effects> The effects of this embodiment will now be explained. (1) In the window grille 6 provided at the outer corner 14 of the outer wall 11, the first support member 31 and the second support member 41 are separate. With this configuration, the window grille 6 composed of the first support member 31 and the first lattice member 51 and the window grille 6 composed of the second support member 41 and the second lattice member 52 are separate. As a result, the window grille 6 composed of the first support member 31 and the first lattice member 51 and the window grille 6 composed of the second support member 41 and the second lattice member 52 can be provided separately at the outer corner 14 of the outer wall 11. Therefore, the window grille 6 can be positioned to match the shape of the outer corner 14 of the outer wall 11.

[0081] (2) The support member 22 that supports the first lattice member 51, the second lattice member 52, and the third lattice member 53 comprises a first support member 31 and a second support member 41. The first support member 31 comprises a first support member body 32 and a first support portion 35. The first support member body 32 is provided so as to extend in the lateral direction DX1 on the first surface 12A, which is one of the surfaces constituting the corner portion 14 of the outer wall 11. The first support portion 35 is provided so as to be along the longitudinal direction of the first support member body 32 and supports the first lattice member 51. The second support member 41 comprises a second support member body 42 and a second support portion 45. The second support member body 42 is provided so as to extend in the lateral direction DX2 on the second surface 13A, which is the other surface constituting the corner portion 14 of the outer wall 11. The second support portion 45 is provided along the longitudinal direction of the second support member body 42 and supports the second grid member 52. The first support member 31 or the second support member 41 has a connecting portion 61 extending from the first support portion 35 or the second support portion 45. The connecting portion 61 connects the first support member 31 or the second support member 41 to the third grid member 53. The first support member 31 and the second support member 41 are separate components.

[0082] With this configuration, the support member 22 can support the first lattice member 51, the second lattice member 52, and the third lattice member 53. The connecting portion 61 can be provided integrally with the first support portion 35 or the second support portion 45. Furthermore, the support member 22 is configured such that the first support member 31 and the second support member 41 are separate components. As a result, the lattice 6 composed of the first support member 31 and the first lattice member 51, and the lattice 6 composed of the second support member 41 and the second lattice member 52, can be provided separately at the outer corner portion 14 of the outer wall 11. Therefore, the lattice 6 can be positioned to match the shape of the outer corner portion 14 of the outer wall 11.

[0083] <Variation> The above embodiments are illustrative of possible forms of the window grille 6, support members 21, 22, and building 1, and are not intended to limit their forms. The window grille 6, support members 21, 22, and building 1 may take forms different from those illustrated in the above embodiments. Examples include forms in which some of the configurations of the embodiments are replaced, modified, or omitted, or forms in which new configurations are added to the embodiments. Modifications of the embodiments are shown below.

[0084] As shown in Figure 13, the third lattice member 53 may be fixed as follows. The support member 23 shown in Figure 13 uses a configuration in which the first support member 31 and the second support member 41 are integrated. The connecting portion 61 extends from the end 35C of the first support member 35 at the intersection 71. The connecting portion 61 extends along the longitudinal direction of the first support member 35. When the first support member 31 and the first lattice member 51 are viewed from the front, the connecting portion 61 extends so as to overlap the second lattice member 52. The third lattice member 53 is fixed to the connecting portion 61 by a fixing member 94 such as an L-shaped angle and screws 93.

[0085] In the above embodiment, the first grid member 51, the second grid member 52, and the third grid member 53 are configured as columnar rectangular parallelepipeds. In contrast, the first grid member 51, the second grid member 52, and the third grid member 53 may be cylindrical.

[0086] This specification discloses the following technologies: [Note 1] Note 1 is a lattice provided at the outer corner of the exterior wall. The lattice comprises a first support member, a second support member, a first lattice member, a second lattice member, a third lattice member, and a connecting portion. The first support member is provided on a first surface, which is one of the surfaces constituting the outer corner. The second support member is provided on a second surface, which is the other surface constituting the outer corner. A plurality of the first lattice members are provided on the first support member and arranged parallel to each other. A plurality of the second lattice members are provided on the second support member and arranged parallel to each other. The third lattice member is provided where the extension of the row of first lattice members intersects with the extension of the row of second lattice members. The connecting portion connects the first support member or the second support member to the third lattice member.

[0087] [Note 2] In the lattice provided at the outer corner of the exterior wall as described in Appendix 1, the third lattice member is connected to the end of the first support member or the end of the second support member by the connecting portion. The end of the first support member is located at the intersection where the first support member and the second support member intersect. The end of the second support member is located at the intersection.

[0088] [Note 3] In the lattice provided at the outer corner of the exterior wall as described in Appendix 2, the third lattice member is square in plan view. The third lattice member has a first corner closest to the end of the first support member or the end of the second support member. The third lattice member is connected to the connecting portion at the first corner.

[0089] [Note 4] In the lattice provided at the outer corner of the exterior wall as described in Appendix 3, the first support member comprises a first support member body and a first support portion. The first support member body is provided so as to extend laterally on the first surface. The first support portion is provided so as to be along the longitudinal direction of the first support member body and supports the first lattice member. The second support member comprises a second support member body and a second support portion. The second support member body is provided so as to extend laterally on the second surface. The second support portion is provided so as to be along the longitudinal direction of the second support member body and supports the second lattice member. The connecting portion comprises an extension portion extending from the first support portion or the second support portion and two engaging pieces branching off from the extension portion. The third lattice member is coupled to the two engaging pieces.

[0090] [Note 5] In the window grille provided at the outer corner of the exterior wall as described in Appendix 1, the first support member and the second support member are integrally formed.

[0091] [Note 6] In the window grille provided at the outer corner of the exterior wall as described in Appendix 1, the first support member and the second support member are separate components.

[0092] [Note 7] In the lattice provided at the outer corner of the exterior wall as described in Appendix 1, the third lattice member is arranged such that the distance between the third lattice member and the adjacent first lattice member is equal to the distance between the third lattice member and the adjacent second lattice member. The first width of the third lattice member is equal to the first width of the first lattice member. The second width of the third lattice member is equal to the second width of the second lattice member.

[0093] [Note 8] In the lattice provided at the outer corner of the exterior wall as described in Appendix 1, the distance between the third lattice member and the adjacent first lattice member is shorter than the distance between the first lattice members. The distance between the third lattice member and the adjacent second lattice member is shorter than the distance between the second lattice members.

[0094] [Note 9] Note 9 is a support member for a lattice provided at the outer corner of the exterior wall. The support member that supports the first lattice member, the second lattice member, and the third lattice member comprises a first support member and a second support member. The first support member comprises a first support member body provided so as to extend laterally on a first surface which is one surface constituting the outer corner of the exterior wall, and a first support portion provided along the longitudinal direction of the first support member body to support the first lattice member. The second support member comprises a second support member body provided so as to extend laterally on a second surface which is the other surface constituting the outer corner of the exterior wall, and a second support portion provided along the longitudinal direction of the second support member body to support the second lattice member. The first support member or the second support member has a connecting portion. The connecting portion connects the first support member or the second support member to the third lattice member. The first support member and the second support member are connected.

[0095] [Note 10] Note 10 is a support member for a lattice provided at the outer corner of the exterior wall. The support member that supports the first lattice member, the second lattice member, and the third lattice member comprises a first support member and a second support member. The first support member comprises a first support member body provided so as to extend laterally on a first surface which is one surface constituting the outer corner of the exterior wall, and a first support portion provided along the longitudinal direction of the first support member body to support the first lattice member. The second support member comprises a second support member body provided so as to extend laterally on a second surface which is the other surface constituting the outer corner of the exterior wall, and a second support portion provided along the longitudinal direction of the second support member body to support the second lattice member. The first support member or the second support member has a connecting portion. The connecting portion connects the first support member or the second support member to the third lattice member. The first support member and the second support member are separate entities.

[0096] [Note 11] Appendix 11 concerns building technology. The building described in Appendix 11 comprises an exterior wall having an external corner and a window grille described in any one of Appendix 1 to 8 provided at the external corner. [Explanation of symbols]

[0097] DX1, DX2...horizontal direction, 1...building, 6...window grille, 11...exterior wall, 12A...first surface, 13A...second surface, 14...outside corner, 21, 22...support member, 31...first support member, 31A...end, 32...first support member body, 35...first support part, 41...second support member, 41A...end, 42...second support member body, 45...second support part, 51...first grid member, 52...second grid member, 53...third grid member, 53A...first corner, 61...connecting part, 62...extension part, 63...engaging piece, 71...intersection.

Claims

1. A window grille installed at the outer corner of an exterior wall, A first support member is provided on the first surface, which is one of the surfaces constituting the aforementioned corner portion, A second support member is provided on the second surface, which is the other surface constituting the aforementioned corner portion, A plurality of first grid members provided on the first support member and arranged parallel to each other, A plurality of second grid members provided on the second support member and arranged parallel to each other, A third grid member is positioned where the extension of the arrangement of the first grid members intersects with the extension of the arrangement of the second grid members, The device comprises a connecting portion that connects the first support member or the second support member to the third lattice member, The third lattice member is connected to the end of the first support member or the end of the second support member by the connecting portion. The end of the first support member is located at the intersection where the first support member and the second support member intersect. The end of the second support member is located at the intersection. Surface lattice.

2. The third grid member is square in plan view, The third lattice member has a first corner portion that is closest to the end of the first support member or the end of the second support member, The third lattice member is connected to the connecting portion at the first corner. The window grille according to claim 1.

3. The first support member comprises a first support member body provided so as to extend laterally on the first surface, and a first support portion provided along the longitudinal direction of the first support member body to support the first grid member, The second support member comprises a second support member body provided so as to extend laterally on the second surface, and a second support portion provided along the longitudinal direction of the second support member body to support the second lattice member. The connecting portion comprises an extension portion extending from the first support portion or the second support portion, and two engaging pieces that branch off from the extension portion into two. The third lattice member is coupled to the two engagement pieces, The window grille according to claim 2.

4. A window grille installed at the outer corner of an exterior wall, A first support member is provided on the first surface, which is one of the surfaces constituting the aforementioned corner portion, A second support member is provided on the second surface, which is the other surface constituting the aforementioned corner portion, A plurality of first grid members provided on the first support member and arranged parallel to each other, A plurality of second grid members provided on the second support member and arranged parallel to each other, A third grid member is positioned where the extension of the arrangement of the first grid members intersects with the extension of the arrangement of the second grid members, The device comprises a connecting portion that connects the first support member or the second support member to the third lattice member, The first support member and the second support member are an integral part. Surface lattice.

5. The first support member and the second support member are separate entities. The window grille according to claim 1.

6. The third grid member is arranged such that the distance between the third grid member and the adjacent first grid member is equal to the distance between the third grid member and the adjacent second grid member. The first width of the third grid member is equal to the first width of the first grid member. The second width of the third grid member is equal to the second width of the second grid member. The window grille according to claim 1.

7. The third grid member is arranged such that the distance between the third grid member and the adjacent first grid member is equal to the distance between the third grid member and the adjacent second grid member. The first width of the third grid member is equal to the first width of the first grid member. The second width of the third grid member is equal to the second width of the second grid member. The window grille according to claim 4.

8. A window grille installed at the outer corner of an exterior wall, A first support member is provided on the first surface, which is one of the surfaces constituting the aforementioned corner portion, A second support member is provided on the second surface, which is the other surface constituting the aforementioned corner portion, A plurality of first grid members provided on the first support member and arranged parallel to each other, A plurality of second grid members provided on the second support member and arranged parallel to each other, A third grid member is positioned where the extension of the arrangement of the first grid members intersects with the extension of the arrangement of the second grid members, The device comprises a connecting portion that connects the first support member or the second support member to the third lattice member, The distance between the third lattice member and the adjacent first lattice member is shorter than the distance between the first lattice members themselves. The distance between the third lattice member and the adjacent second lattice member is shorter than the distance between the second lattice members themselves. Surface lattice.

9. A building comprising an exterior wall having an external corner and a window grille according to any one of claims 1 to 8 provided at the external corner.

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