Anti-fouling structure of exterior wall panels

Abstract

To provide an antifouling structure of an exterior wall panel capable of suppressing stains on exterior wall panels caused by rainwater flowing down.SOLUTION: There is provided an antifouling structure of exterior wall panels in a building 1 with an outer wall 2a inclined and having windows 5 and exterior wall panels 6 each extending at an angle with respect to the vertical direction. In the antifouling structure of exterior wall panels, each of side faces 6c facing upward and adjacent to the window 5 of the exterior wall panel 6 is provided with a water return wall 10 protruding from the side face 6.SELECTED DRAWING: Figure 4

Description

Technical Field

[0002] ,

[0001] The present invention relates to an antifouling structure for an outer wall panel that suppresses dirt on the outer wall panel provided adjacent to a window on the outer wall of a building.

Background Art

[0002] Conventionally, for example, as buildings such as office buildings and commercial buildings, those having a configuration in which an outer wall panel is attached adjacent to a window on the outer wall are known.

[0003] For example, Patent Document 1 describes a building in which an outer wall panel is attached along the vertical direction to a vertical outer wall.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In order to enhance the design property in appearance, it is conceivable to configure a building such that the outer wall is inclined and the window and the outer wall panel extend inclined with respect to the vertical direction.

[0006] However, in a building having such a configuration, since the outer wall is inclined, rainwater is likely to fall on the window and the outer wall panel, and since the outer wall panel is located on the lower side of the window, the rainwater that has fallen on the window flows from the window to the surface of the outer wall panel, so there is a problem that streak-like dirt is likely to adhere due to the flow of rainwater on the surface of the outer wall panel.

[0007] The present invention has been made in view of such problems, and an object thereof is to provide an antifouling structure for an outer wall panel capable of suppressing dirt on the outer wall panel due to the flow of rainwater. <X000035>Note: There seems to be an issue with the tag which is repeated as and <X000023> in the original text. I've translated it as is, but it might need to be corrected in the source. Also, is repeated as and <X000035>.[Means for solving the problem]

[0008] The stain-resistant structure for exterior wall panels of the present invention is a stain-resistant structure for exterior wall panels in a building having an exterior wall that is inclined and has window portions and exterior wall panels that extend inclined in the vertical direction, characterized in that a water-repellent wall protruding from the side surface is provided on the upward side surface of the exterior wall panel adjacent to the window portion.

[0009] In the stain-resistant structure for the exterior wall panel of the present invention, it is preferable that the exterior wall panel has a surface that protrudes outward from the window portion, an upward-facing first side surface provided between the surface and the window portion, and a downward-facing second side surface provided between the surface and the window portion, and that the water-repellent wall is provided on the first side surface.

[0010] In the stain-resistant structure for exterior wall panels of the present invention, it is preferable that the exterior wall panels comprise a plurality of panel units arranged in a vertical direction with slits between them, each having an internal gutter inside, and that rainwater flowing along the side surface of the upper panel unit flows through the slits into the internal gutter of the lower panel unit. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide an anti-fouling structure for exterior wall panels that can suppress the soiling of exterior wall panels caused by rainwater flow. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view of a building equipped with an anti-fouling structure for the exterior wall panel according to one embodiment of the present invention. [Figure 2] Figure 1 is a side view of the building shown. [Figure 3] This is an enlarged view of area A of the building shown in Figure 1. [Figure 4] This is a cutaway perspective view showing the cross-sectional structure of the exterior wall panel. [Figure 5] This is an explanatory diagram illustrating the flow of rainwater that falls onto a window. [Figure 6] This is a cross-sectional view showing the configuration of the exterior wall panels at the ridge of a building. [Figure 7] This is a cross-sectional view showing the structure of the slit between the upper and lower panel units. [Figure 8] This is a cross-sectional view showing a modified structure of the slit portion between the upper and lower panel units. [Modes for carrying out the invention]

[0013] The following describes in detail an example of a stain-resistant structure for an exterior wall panel according to one embodiment of the present invention, with reference to the drawings.

[0014] The building 1 shown in Figures 1 and 2 is an example of a building equipped with an anti-fouling structure for exterior wall panels according to one embodiment of the present invention. This building 1 is a multi-story building used, for example, as an office building or a commercial building.

[0015] The exterior walls 2a on the front (the side shown in Figure 1), 2b on the side (the side shown in Figure 2), and 2c on the corners between the front and side of Building 1, from the first floor (ground floor) to the third floor, are all perpendicular to the ground 3. In contrast, the exterior walls 4a on the front, 4b on the side, and 4c on the corners of Building 1, from the fourth floor upwards, are each inclined upward at a predetermined fixed angle with respect to the direction perpendicular to the ground 3 (vertical direction).

[0016] As shown in Figure 1, the front exterior wall 4a of the building 1 above the fourth floor is provided with a window section 5 and an exterior wall panel 6 that extend inclined in the vertical direction. The anti-fouling structure of the exterior wall panel according to this embodiment is provided on the exterior wall panel 6 provided on the front exterior wall 4a, and suppresses the fouling of the exterior wall panel 6 caused by rainwater falling on the window section 5 flowing towards the exterior wall panel 6.

[0017] More specifically, in the present embodiment, on the outer wall 4a, a plurality of strip-shaped window portions 5 and outer wall panels 6 that respectively extend obliquely from the lower end to the upper end of the outer wall 4a are arranged side by side alternately.

[0018] As shown in FIG. 3, in the present embodiment, each window portion 5 has a configuration in which two vertically long parallelogram-shaped plate-like windows 5a are arranged side by side vertically in each layer. Note that the window portion 5 may have a configuration in which one vertically long parallelogram-shaped window 5a is arranged in each layer, a configuration in which three or more vertically long parallelogram-shaped windows 5a are arranged side by side vertically in each layer, or a configuration in which one vertically long parallelogram-shaped window 5a is arranged across a plurality of layers.

[0019] In the present embodiment, each outer wall panel 6 has a configuration in which a plurality of panel units 6a having a vertically long parallelogram shape are arranged side by side vertically via slits 7. Each panel unit 6a has a vertical length corresponding to each layer and is arranged adjacent to the two windows 5a in each layer. Note that the panel unit 6a may have a vertical length that spans a plurality of layers, or the entire outer wall panel 6 may be composed of one panel unit 6a.

[0020] As shown in FIG. 4, each panel unit 6a (outer wall panel 6) has a surface 6b arranged to protrude outside the building 1 more than the window portion 5, a first side surface 6c provided between one side edge of the surface 6b and the window portion 5, that is, the window 5a, and a second side surface 6d provided between the other side edge of the surface 6b and the window portion 5, that is, the window 5a.

[0021] The surface 6b, the first side 6c, and the second side 6d may be formed integrally, or they may be formed by combining separately formed parts. The surface 6b is a plane, and the surfaces 6b of vertically adjacent panel units 6a are arranged in the same plane. The first side 6c is a plane perpendicular to the surface 6b, and the first side 6c of vertically adjacent panel units 6a are arranged in the same plane. Furthermore, each first side 6c is inclined upward with respect to the vertical direction and extends straight along the side of the window 5a. The second side 6d is a plane perpendicular to the surface 6b, and the second side 6d of vertically adjacent panel units 6a are arranged in the same plane. Furthermore, each second side 6d is inclined downward with respect to the vertical direction and extends straight along the side of the window 5a. In this way, the exterior wall panel 6, that is, each panel unit 6a, has a roughly U-shaped cross-section perpendicular to the vertical direction and is attached to the structure 8 of the building 1. The structure 8 consists of various components that make up the building 1, such as columns, beams, and supporting members attached thereto, and its configuration and shape can be changed as appropriate.

[0022] As shown in Figure 4, a water-repellent wall 10 is provided on the upward-facing first side surface 6c adjacent to the window portion 5 of each panel unit 6a (exterior wall panel 6), projecting from the first side surface 6c. In this embodiment, the water-repellent wall 10 is plate-shaped and is integrally attached to the edge of the surface 6b of the first side surface 6c, projecting in a direction perpendicular to the first side surface 6c. By providing the water-repellent wall 10 on the first side surface 6c, an exterior gutter 11 is provided on the upward-facing first side surface 6c of the exterior wall panel 6, separated by the window portion 5 and the water-repellent wall 10.

[0023] Preferably, the water-repellent wall 10 is provided continuously over the entire range from the upper end to the lower end of the first side surface 6c, but the range can be changed as appropriate as long as it can prevent rainwater from the window section 5 from flowing onto the surface 6b. Furthermore, the water-repellent wall 10 is not limited to a plate shape, but can also take other shapes, such as block-shaped protrusions, as long as an external gutter 11 is formed on the upward-facing first side surface 6c of the exterior wall panel 6, partitioned by the window section 5 and the water-repellent wall 10. In addition, the water-repellent wall 10 is not limited to being provided integrally with the edge of the first side surface 6c on the side of the surface 6b, but may also be provided in the intermediate portion between the window section 5 and the surface 6b of the first side surface 6c, or it may be formed separately from the first side surface 6c and fixed to the first side surface 6c using fixing means such as bolts.

[0024] As shown in Figure 4, when the exterior wall panel 6 is configured with multiple panel units 6a arranged vertically with slits 7 in between, each panel unit 6a can also be configured to have an internal gutter 12 inside. In this embodiment, a cylindrical internal gutter 12 is provided at both the upper corner adjacent to the surface 6b and the first side surface 6c and the lower corner adjacent to the surface 6b and the second side surface 6d of each panel unit 6a, extending from the upper end to the lower end along the first side surface 6c or the second side surface 6d. The internal gutter 12 opens upward at the upper end of the panel unit 6a and downward at the lower end of the panel unit 6a. As a result, rainwater flowing down the first side surface 6c of the upper panel unit 6a, i.e., the exterior gutter 11, flows through the slits 7 into the internal gutter 12 of the lower panel unit 6a. Guide plates or the like may be provided to ensure that rainwater flows reliably from the exterior gutter 11 into the internal gutter 12. Furthermore, rainwater that has flowed through the internal gutter 12 of the upper panel unit 6a can also flow into the internal gutter 12 of the lower panel unit 6a.

[0025] Figure 5 is an explanatory diagram illustrating the flow of rainwater that falls onto window section 5.

[0026] As shown by the dashed arrow in Figure 5, if a water-repellent wall 10 is not provided on the first side surface 6c of the exterior wall panel 6, rainwater that falls onto the window 5 will flow downwards along the surface of the window 5a, cross the upward-facing first side surface 6c of the exterior wall panel 6, and flow across the surface 6b. As a result, dirt will accumulate on the surface 6b due to the flow of rainwater that falls onto the window 5.

[0027] In contrast, in the case of the exterior wall panel having the above configuration, a water-repellent wall 10 is provided on the first side surface 6c, and an exterior gutter 11 is provided on the upward-facing first side surface 6c of the exterior wall panel 6, partitioned by the window 5 and the water-repellent wall 10. As shown by the solid arrows in Figure 5, rainwater that falls onto the window 5 flows downward from there along the surface of the window 5a and reaches the upward-facing first side surface 6c of the exterior wall panel 6. However, it hits the water-repellent wall 10 on the first side surface 6c and is unable to flow to the surface 6b, so it flows downward along the exterior gutter 11 along the first side surface 6c.

[0028] Thus, according to the stain-resistant structure of the exterior wall panel of this embodiment, in a building 1 in which the exterior wall 2a is inclined and the window section 5 and the exterior wall panel 6 each extend inclined in the vertical direction, the water-repellent wall 10 provided on the first side surface 6c of the exterior wall panel 6 prevents rainwater that falls on the window section 5 from flowing onto the surface 6b of the exterior wall panel 6, thereby suppressing the soiling of the surface 6b of the exterior wall panel 6 by the flow of rainwater.

[0029] Furthermore, in this embodiment, the exterior wall panel 6 is configured to have multiple panel units 6a arranged in a vertical direction with slits 7 between them, each equipped with an internal gutter 12. Rainwater flowing down the first side surface 6c of the upper panel unit 6a flows through the slits 7 into the internal gutter 12 of the lower panel unit 6a. This configuration ensures that rainwater flowing down the first side surface 6c or the exterior gutter 11 flows into the internal gutter 12 for each panel unit 6a, thereby preventing rainwater from overflowing from the exterior gutter 11 and flowing onto the surface 6b during heavy rain.

[0030] As shown in Figure 1, a portion of the exterior wall panel 6 provided on the front exterior wall 2a of the building 1 straddles the ridge portion 20 at the boundary between the front exterior wall 2a and the corner exterior wall 2c, and is therefore divided at the ridge portion 20. Therefore, as shown in Figure 6, a downpipe 21 may be provided between the panel unit 6a on the front exterior wall 2a side and the panel unit 6a on the corner exterior wall 2c side. In this case, a first support 22 fixed to the structure 8 of the building 1 and supporting the panel unit 6a on the front exterior wall 2a side, and a second support 23 fixed to the structure 8 and supporting the panel unit 6a on the corner exterior wall 2c side can be provided at the ridge portion 20, and the downpipe 21 can be provided by sealing the space between them with a double sealant 24. It is preferable to also provide double sealants 25 between the first support 22 and the panel unit 6a, and between the second support 23 and the panel unit 6a.

[0031] With this configuration, rainwater that flows downwards along the first side surface 6c of the exterior wall panel 6 or the exterior gutter 11 to the ridge portion 20 flows into the downpipe 21 at the ridge portion 20, thereby preventing the rainwater from separating from the exterior gutter 11 at the ridge portion 20 and flowing onto the surface 6b of the panel unit 6a.

[0032] Alternatively, the downpipe 21 may be connected to the internal passage of the panel unit 6a by providing a stopper plate and a catch pan in the middle of the downpipe 21, thereby connecting the downpipe 21 to the internal gutter 12 of the panel unit 6a via the internal passage.

[0033] As shown in Figures 4 and 7, a configuration in which a horizontal gutter 30 is provided inside the slit 7 is also possible. In this case, the horizontal gutter 30 is integrally provided with the support 31 for fixing the panel unit 6a, which is lower to the slit 7, to the structure 8, and extends horizontally inside the slit 7. The end of the first side surface 6c of the horizontal gutter 30 is in communication with the inner gutter 12. On the other hand, a stopper plate 32 is provided on the second side surface 6d of the horizontal gutter 30, blocking the flow path to the end on the second side surface 6d.

[0034] When rainwater falls on the surface 6b of the panel unit 6a and flows downward into the slit 7, it flows through the gutter 30 and into the inner gutter 12 on the first side surface 6c. This prevents rainwater that falls on the surface 6b of the upper panel unit 6a from flowing down the surface 6b of the lower panel unit 6a, thereby more effectively preventing the surface 6b of the exterior wall panel 6 from becoming soiled by flowing rainwater.

[0035] Furthermore, by providing a stopper plate 32 on the second side 6d of the gutter 30, it is possible to prevent rainwater that flows into the gutter 30 through the slit 7 from flowing from the end on the second side 6d of the gutter 30 to the window section 5, thereby suppressing soiling of the surface of the window section 5 due to rainwater flow.

[0036] As shown in Figures 4 and 7, a water-repellent lower end wall 40 is provided on the lower end side of the surface 6b of the panel unit 6a, projecting perpendicularly from the surface 6b, and a water-repellent side end wall 41 is provided on the side of the second side surface 6d of the surface 6b, projecting perpendicularly from the surface 6b.

[0037] The lower end wall 40 of the water-repellent barrier extends horizontally with a width equal to that of the surface 6b of the panel unit 6a, receiving rainwater flowing downward on the surface 6b and allowing the rainwater to flow through the gap between it and the lower end of the panel unit 6a into the gutter 30. The end of the lower end wall 40 of the water-repellent barrier on the second side surface 6d abuts against the side end wall 41 of the water-repellent barrier, preventing the rainwater received by the lower end wall 40 of the water-repellent barrier from flowing out of the second side surface 6d into the window 5. The side end wall 41 of the water-repellent barrier extends along the second side surface 6d with a vertical length equal to that of the surface 6b of the panel unit 6a, receiving rainwater flowing downward on the surface 6b and allowing the rainwater to flow through the gap between it and the side end of the panel unit 6a into the internal gutter 12 without flowing into the lower window 5. In this way, by providing the lower end wall 40 of the water-repellent barrier and the side end wall 41 of the water-repellent barrier on the panel unit 6a, it is possible to more effectively suppress the soiling of the window 5 or the surface of the panel unit 6a by flowing rainwater.

[0038] As shown in Figure 8, the member 50 forming the gutter 30 can be made separate from the support 31 that supports the panel unit 6a, and fixed between the upper and lower support 31. In this case, it is preferable to provide a double seal 51 between the member 50 and the lower panel unit 6a. This ensures sufficient sealing between the member 50 and the lower panel unit 6a, even in a configuration where the front outer wall 2a is inclined.

[0039] The present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention. [Explanation of Symbols]

[0040] 1 Building 2a Front exterior wall 2b Side exterior wall 2c Corner exterior wall 3 ground 4a Front exterior wall 4b Side exterior wall 4c Corner exterior wall 5 Window section 5a Window 6. Exterior wall panels 6a Panel Unit 6b surface 6c 1st side 6d 2nd side 7 slits 8 Structure 10 Water-repellent wall 11 Outside gutter 12 Inner gutter 20 Ridge line part 21 Downpipe 22 First support 23 Second support 24. Sealant 25 seals 30 horizontal gutters 31 Support 32 Stopper plate 40 Lower end wall of the water-repellent barrier 41 Side wall of water-repellent barrier 50 components 51 Seal body

Claims

1. A stain-resistant structure for exterior wall panels in a building having an exterior wall that is sloped and windows and exterior wall panels that extend inclined in the vertical direction, A stain-resistant structure for an exterior wall panel, characterized in that a water-repellent wall protruding from the side surface is provided on the upward-facing side surface of the exterior wall panel adjacent to the window portion.

2. The aforementioned exterior wall panel, A surface positioned to protrude outward from the aforementioned window portion, An upward-facing first side surface is provided between the surface and the window portion, It has a downward-facing second side surface provided between the surface and the window portion, The stain-resistant structure for an exterior wall panel according to claim 1, wherein the water-repellent wall is provided on the first side surface.

3. The aforementioned exterior wall panel comprises a plurality of panel units, each equipped with an internal gutter and arranged in a vertical direction with slits between them. The stain-resistant structure for an exterior wall panel according to claim 1 or 2, wherein rainwater flowing along the side surface of the upper panel unit flows through the slit into the inner gutter of the lower panel unit.

Images