JP7841962B2 - Curtain wall - Google Patents

Description

This invention relates to curtain walls.

Conventionally, curtain walls comprise multiple panel units arranged, for example, vertically and horizontally. Between adjacent panel units, an isobaric space is provided, approximately equal in pressure to the outside air, to prevent rainwater from entering the building due to pressure differences or airflow.

Japanese Patent Publication No. 2021-95748

In each panel unit, an upper frame, a lower frame, and two vertical frames are attached to the edges of the plate-shaped exterior wall material. Isobaric spaces are provided between the upper and lower frames, and between the two vertical frames. The depth dimensions of the upper frame, lower frame, and vertical frames are sometimes set relatively close together to ensure that the isobaric spaces between the upper and lower frames and between the two vertical frames are interconnected.

This invention has been made in view of the above, and aims to provide a curtain wall that allows for miniaturization of the upper and lower frames.

To solve the above-mentioned problems and achieve the objective, the curtain wall according to the present invention comprises a plurality of panel units and partition members . Each panel unit has a plate-shaped exterior wall material, an upper frame attached to the upper edge of the exterior wall material, a lower frame attached to the lower edge of the exterior wall material, and a vertical frame attached to the lateral edge of the exterior wall material, and is arranged in the vertical and horizontal directions. A first isobaric space is provided between the vertical frame of a first panel unit, which is one of the plurality of panel units, and the vertical frame of a second panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the horizontal direction. A second isobaric space is provided between the lower frame of the first panel unit and the upper frame of a third panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the vertical direction. The end of the second isobaric space on the indoor side is located on the outdoor side than the end of the first isobaric space on the indoor side. The partition member is sandwiched between the lower frame of the first panel unit and the lower frame of the second panel unit, and also sandwiched between the vertical frame of the first panel unit and the vertical frame of the third panel unit, separating the first isobaric space from the second isobaric space.

Furthermore, in the curtain wall according to the present invention , the partition member may have elasticity.

Furthermore, in the curtain wall according to the present invention, the partition member may cover the lower end of the first isobaric space, and a drainage channel may be provided that connects the lower end of the first isobaric space to the outdoors.

Furthermore, in the curtain wall according to the present invention, the partition member may cover one end of the second isobaric space as described above.

To solve the above-mentioned problems and achieve the objective, the curtain wall according to the present invention comprises a plurality of panel units. Each panel unit has a plate-shaped exterior wall material, an upper frame attached to the upper edge of the exterior wall material, a lower frame attached to the lower edge of the exterior wall material, and a vertical frame attached to the lateral edge of the exterior wall material, and is arranged in the vertical and horizontal directions. A first isobaric space is provided between the vertical frame of a first panel unit, which is one of the plurality of panel units, and the vertical frame of a second panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the horizontal direction. A second isobaric space is provided between the lower frame of the first panel unit and the upper frame of a third panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the vertical direction. The end of the second isobaric space on the indoor side is located on the outdoor side than the end of the first isobaric space on the indoor side. The end of the second isobaric space on the indoor side is located further outdoors than the end of the first isobaric space on the outdoor side.

According to the curtain wall of the present invention, since the end of the second isobaric space on the indoor side is located on the outdoor side than the end of the first isobaric space on the indoor side, the dimensions of the upper and lower frames can be shorter than the dimensions of the vertical frames in the depth direction. This prevents a decrease in the strength of the curtain wall due to the vertical frames, which are subject to greater loads, being set to a longer depth. On the other hand, by shortening the dimensions of the upper and lower frames in the depth direction, the curtain wall can be made smaller, and consequently, the weight and cost of the upper and lower frames can be reduced.

Figure 1 is a schematic front view showing the curtain wall according to this embodiment. Figure 2 is a cross-sectional view showing a portion of the curtain wall of this embodiment along the line F2-F2 in Figure 1. Figure 3 is a cross-sectional view showing a portion of the curtain wall of this embodiment along the line F3-F3 in Figure 1. Figure 4 is a perspective view showing the panel unit and catch pan of this embodiment.

Below, one embodiment of the present invention will be described with reference to Figures 1 to 4. In this specification, the vertically upward direction is generally defined as "upward," and the vertically downward direction as "downward." Furthermore, in this specification, the components of the embodiment and their descriptions may be described using multiple expressions. The components and their descriptions are examples and are not limited by the expressions used in this specification. Components may also be identified by names different from those used in this specification. Furthermore, components may also be described using expressions different from those used in this specification.

Figure 1 is a schematic front view showing the curtain wall 10 according to this embodiment. The curtain wall 10 forms the exterior wall of a building 1, such as a skyscraper. In other words, the building 1 has the curtain wall 10.

As shown in each drawing, the X-axis, Y-axis, and Z-axis are defined herein for convenience. The X-axis, Y-axis, and Z-axis are orthogonal to each other. The X-axis is provided along the width of the curtain wall 10. The Y-axis is provided along the depth (projection) of the curtain wall 10. The Z-axis is provided along the height of the curtain wall 10.

Furthermore, the X, Y, and Z directions are defined herein. The X direction (left-right direction) includes the +X direction indicated by the X-axis arrow and the -X direction, which is the opposite direction of the X-axis arrow. The Y direction (depth direction) includes the +Y direction indicated by the Y-axis arrow and the -Y direction, which is the opposite direction of the Y-axis arrow. The Z direction (up-down direction) includes the +Z direction (upward direction) indicated by the Z-axis arrow and the -Z direction (downward direction), which is the opposite direction of the Z-axis arrow. In the following description, the +Y direction is the direction from the inside of Building 1 towards the outside, and may also be referred to as the outdoor side. The -Y direction is the direction from the outside of Building 1 towards the inside, and may also be referred to as the indoor side.

The curtain wall 10 comprises a plurality of panel units 11 and a plurality of catch pans 12. The catch pans 12 are an example of partition members. Each of the plurality of panel units 11 comprises a panel 21 and a frame 22. The panel 21 is an example of an exterior wall material.

Panel 21 is a roughly rectangular plate made of, for example, double-glazed glass, ordinary concrete, lightweight concrete, or metal. Panel 21 may be made of other materials. The upper edge 21a and lower edge 21b of panel 21 extend approximately in the X direction. Edge 21b is located below edge 21a. The lateral (left and right) edges 21c and 21d of panel 21 extend approximately in the Z direction.

The frame 22 comprises an upper frame 31, a lower frame 32, and two vertical frames 33 and 34. The upper frame 31, lower frame 32, and vertical frames 33 and 34 are made of a metal such as aluminum. However, parts of the upper frame 31, lower frame 32, and vertical frames 33 and 34 may be made of other materials.

The upper frame 31 is attached to the upper edge 21a of the panel 21 and extends approximately in the X direction. The lower frame 32 is attached to the lower edge 21b of the panel 21 and extends approximately in the X direction. The two vertical frames 33 and 34 are attached to the lateral edges 21c and 21d of the panel 21 and extend approximately in the Z direction. The upper frame 31, lower frame 32, and vertical frames 33 and 34 are joined to each other, for example, by screws. The panel 21 is surrounded by the upper frame 31, lower frame 32, and the two vertical frames 33 and 34.

Multiple panel units 11 are arranged vertically and horizontally. In the curtain wall 10, four panel units 11 are combined such that catch pans 12 are sandwiched between the corners of adjacent panel units 11. For example, the vertical frames 33 and 34 of two horizontally adjacent panel units 11 form mullions. Each of the multiple panel units 11 is attached to the building structure 1, for example, by fasteners.

Hereinafter, the four panel units 11 may be individually referred to as panel units 11UL, 11UR, 11LL, and 11LR. Panel unit 11UL is an example of the first panel unit. Panel unit 11UR is an example of the second panel unit. Panel unit 11LL is an example of the third panel unit.

Panel unit 11UR is adjacent to panel unit 11UL in the left-right direction. Panel unit 11LL is adjacent to panel unit 11UL in the vertical direction. Panel unit 11LR is adjacent to panel unit 11UR in the vertical direction. Panel units 11LL and 11LR are located below panel units 11UL and 11UR.

Figure 2 is a cross-sectional view showing a portion of the curtain wall 10 of this embodiment along the line F2-F2 in Figure 1. As shown in Figure 2, the lower frame 32 has multiple recessed walls 41, 42, 43 and multiple visible walls 44, 45, 46.

The facade walls 41, 42, and 43 are formed in a plate-like shape that extends along the X-Y plane. In the vertical direction, facade wall 41 is located below facade walls 42 and 43, and facade wall 43 is located between facade walls 41 and 42.

The visible walls 44, 45, and 46 are formed in a plate-like shape that extends along the X-Z plane. In the depth direction, visible wall 44 is located on the outdoor side of visible walls 45 and 46, and visible wall 46 is located between visible walls 44 and 45.

The visible wall 44 projects upward from approximately the center of the visible wall 41 in the depth direction. The visible wall 44 supports the panel 21 in the depth direction. The visible wall 42 extends inward from the upper end of the visible wall 44.

The visible wall 46 extends upward from the end of the interior wall 41. The interior wall 43 extends inward from the end of the visible wall 46, approximately above. The visible wall 45 extends downward from the end of the interior wall 42. The end of the interior wall 43 connects to the visible wall 45.

The upper frame 31 has multiple facade walls 51, 52 and multiple facade walls 53, 54, 55. The facade walls 51, 52 are formed in a plate-like shape extending along the X-Y plane. In the vertical direction, the facade wall 52 is located below the facade wall 51.

The visible walls 53, 54, and 55 are formed in a plate-like shape that extends along the X-Z plane. In the depth direction, visible wall 53 is located on the outdoor side of visible walls 54 and 55, and visible wall 55 is located between visible walls 53 and 54.

The visible wall 53 projects downward from approximately the center of the visible wall 51 in the depth direction. The visible wall 54 projects downward from the end of the visible wall 51 on the indoor side. The visible wall 52 extends in the depth direction between the lower end of visible wall 53 and the lower end of visible wall 54. The visible wall 55 projects upward from the visible wall 51. The visible wall 55 of the upper frame 31 is inserted into the space between the two visible walls 45 and 46 of the lower frame 32.

The curtain wall 10 further includes sealing materials 61, 62, and 63. The sealing materials 61, 62, and 63 are made of an elastic material, such as ethylene propylene diene (EPDM) rubber. Sealing materials 61 and 62 are rain barriers and are located on the outdoor side of sealing material 63. Sealing material 63 is a wind barrier and is located on the indoor side of sealing materials 61 and 62.

The sealant 61 is located on the outdoor side of the sealant 62. The sealant 61 protrudes upward from the facade wall 51 of the upper frame 31 and abuts against the facade wall 41 of the lower frame 32. The sealant 62 protrudes downward from the facade wall 41 of the lower frame 32 and abuts against the facade wall 51 of the upper frame 31. The sealant 63 protrudes outward from the facade wall 55 of the upper frame 31 and abuts against the facade wall 46 of the lower frame 32.

Multiple lateral isobaric spaces SL are provided in the curtain wall 10. These lateral isobaric spaces SL are examples of second isobaric spaces. At least one of the multiple lateral isobaric spaces SL is provided between the lower frame 32 of panel unit 11UL and the upper frame 31 of panel unit 11LL. Furthermore, at least one of the multiple lateral isobaric spaces SL is provided between the lower frame 32 of panel unit 11UR and the upper frame 31 of panel unit 11LR.

The lateral isobaric space SL between panel units 11UL and 11LL and the lateral isobaric space SL between panel units 11UR and 11LR are approximately equal. The following explanation will primarily focus on the lateral isobaric space SL between panel units 11UL and 11LL.

The lateral isobaric space SL comprises a first region SL1 and a second region SL2. The first region SL1 is the space between the lower frame 32 of panel unit 11UL and the upper frame 31 of panel unit 11LL, specifically the portion between sealing material 62 and sealing material 63. Each of the sealing materials 62 and 63 extends in the left-right direction and seals the end of the first region SL1.

The second region SL2 is the space between the lower frame 32 of panel unit 11UL and the upper frame 31 of panel unit 11LL, specifically the portion between sealing material 61 and sealing material 62. Each of the sealing materials 61 and 62 extends in the left-right direction, sealing the end of the second region SL2.

The lateral isobaric space SL is connected to the outdoors, for example, through a hole provided in at least one of the upper frame 31 and the lower frame 32. This maintains the lateral isobaric space SL at approximately equal pressure to the outdoors, suppressing rainwater from entering the building due to pressure differences or airflow. Note that the atmospheric pressure in the lateral isobaric space SL may temporarily differ from the atmospheric pressure outdoors.

Figure 3 is a cross-sectional view showing a portion of the curtain wall 10 of this embodiment along the line F3-F3 in Figure 1. As shown in Figure 3, the vertical frame 34 has multiple recessed walls 71, 72, 73 and multiple visible walls 74, 75, 76, 77.

The interior walls 71, 72, and 73 are formed in a plate-like shape that extends along the Y-Z plane. In the left-right direction, interior wall 71 is located to the right (+X direction) of interior walls 72 and 73, and interior wall 73 is located between interior walls 71 and 72.

The visible walls 74, 75, 76, and 77 are formed in a plate-like shape that extends along the X-Z plane. In the depth direction, visible wall 74 is located on the outdoor side of visible walls 75, 76, and 77, while visible walls 76 and 77 are located between visible walls 74 and 75.

The visible wall 74 extends horizontally between the end of the interior wall 71 on the indoor side and the end of the interior wall 72 on the outdoor side. The visible wall 74 supports the panel 21 in the interior direction. The visible wall 75 extends to the right from the end of the interior wall 72 on the indoor side.

The visible walls 76 and 77 project to the right from approximately the center of the visible wall 72 in the depth direction. The visible walls 76 and 77 are spaced apart from each other in the depth direction. The visible wall 73 extends in the depth direction between approximately the center of the visible wall 76 and approximately the center of the visible wall 77 in the left-right direction.

The vertical frame 33 has multiple facade walls 81, 82, and 83, and multiple facade walls 84, 85, 86, and 87. The facade walls 81, 82, and 83 are formed in a plate-like shape extending along the Y-Z plane. In the left-right direction, facade wall 83 is located to the left of facade walls 81 and 82 (in the -X direction), and facade wall 81 is located between facade walls 82 and 83.

The visible walls 84, 85, 86, and 87 are formed in a plate-like shape that extends along the X-Z plane. In the depth direction, visible wall 84 is located on the outdoor side of visible walls 85, 86, and 87, while visible walls 86 and 87 are located between visible walls 84 and 85.

The visible wall 84 extends horizontally between the end of the interior wall 81 on the indoor side and the end of the interior wall 82 on the outdoor side. The visible wall 84 supports the panel 21 in the interior direction. The visible wall 85 extends to the left from the end of the interior wall 82 on the indoor side. The visible wall 85 of the vertical frame 33 is combined with the visible wall 75 of the vertical frame 34.

The visible walls 86 and 87 project to the left from approximately the center of the visible wall 82 in the depth direction. The visible walls 86 and 87 are spaced apart from each other in the depth direction. The ends of the visible walls 86 and 87 on the left are located between the visible walls 76 and 77 of the vertical frame 34. The visible wall 83 extends in the depth direction between approximately the center of the visible wall 86 and approximately the center of the visible wall 87 in the left-right direction.

The curtain wall 10 further includes sealants 91 and 92. The sealants 91 and 92 are made of an elastic material, such as EPDM rubber. Sealant 91 is a rain barrier and is located on the outdoor side of sealant 92. Sealant 92 is a wind barrier and is located on the indoor side of sealant 91.

The sealant 91 protrudes from the visible wall 86 of the vertical frame 33 and abuts against the visible wall 76 of the vertical frame 34. The sealant 92 protrudes from the visible wall 87 of the vertical frame 33 and abuts against the visible wall 77 of the vertical frame 34.

Multiple vertical isobaric spaces SV are provided in the curtain wall 10. A vertical isobaric space SV is an example of a first isobaric space. At least one of the multiple vertical isobaric spaces SV is provided between the vertical frame 34 of panel unit 11UL and the vertical frame 33 of panel unit 11UR. Furthermore, at least one of the multiple vertical isobaric spaces SV is provided between the vertical frame 34 of panel unit 11LL and the vertical frame 33 of panel unit 11LR.

The longitudinal isobaric space SV between panel units 11UL and 11UR, and the longitudinal isobaric space SV between panel units 11LL and 11LR, are approximately equal to each other. The following explanation will primarily focus on the longitudinal isobaric space SV between panel units 11UL and 11UR.

The vertical isobaric space SV is the portion of the space between the vertical frame 34 of panel unit 11UL and the vertical frame 33 of panel unit 11UR, specifically the portion between sealing material 91 and sealing material 92. Each of the sealing materials 91 and 92 extends vertically and seals the end of the vertical isobaric space SV.

The vertical isobaric space SV is connected to the outdoors, for example, through a hole provided in at least one of the vertical frames 33 and 34. This maintains the vertical isobaric space SV at approximately equal pressure to the outdoors, suppressing rainwater from entering the building due to pressure differences or airflow. Note that the atmospheric pressure in the vertical isobaric space SV may temporarily differ from the atmospheric pressure outdoors.

Figure 4 is a perspective view showing the panel units 11LL, 11LR and the catch pan 12 of this embodiment. The catch pan 12 is made of, for example, a silicone sponge manufactured by adding a foaming agent to a silicone material, and is elastic. The catch pan 12 may also be made of other elastic materials. The catch pan 12 has a longitudinal diaphragm 101 and two transverse diaphragms 102 and 103.

The longitudinal septum 101 is formed in a roughly rectangular parallelepiped shape. The longitudinal septum 101 is sandwiched between the lower end of the vertical frame 34 of panel unit 11UL and the upper end of the vertical frame 34 of panel unit 11LL. Furthermore, the longitudinal septum 101 is sandwiched between the lower end of the vertical frame 33 of panel unit 11UR and the upper end of the vertical frame 33 of panel unit LR.

The longitudinal partition wall 101 covers the lower end of the longitudinal isobaric space SV located between panel units 11UL and 11UR. Furthermore, the longitudinal partition wall 101 covers the upper end of the longitudinal isobaric space SV located between panel units 11LL and 11LR.

The transverse diaphragms 102 and 103 protrude outward from the longitudinal diaphragm 101. The two transverse diaphragms 102 and 103 are spaced apart from each other in the left-right direction.

The lateral partition wall 102 abuts against the lower ends of the internal walls 41 and 43 and the right ends of the external walls 45 and 46 of the lower frame 32 of the panel unit 11UL. The lateral partition wall 102 abuts against the upper end of the internal wall 51 and the right end of the external wall 55 of the upper frame 31 of the panel unit 11LL. Furthermore, the lateral partition wall 102 abuts against the right ends of the sealing materials 62 and 63.

The lateral partition wall 103 abuts against the lower ends of the internal walls 41 and 43 and the left ends of the external walls 45 and 46 of the lower frame 32 of the panel unit 11UL. The lateral partition wall 103 abuts against the upper end of the internal wall 51 and the left end of the external wall 55 of the upper frame 31 of the panel unit 11LL. Furthermore, the lateral partition wall 103 abuts against the left ends of the sealing materials 62 and 63.

The catch pan 12, having transverse diaphragms 102 and 103, is sandwiched between the lower frame 32 of panel unit 11UL and the lower frame 32 of panel unit 11UR. Furthermore, the catch pan 12 is sandwiched between the upper frame 31 of panel unit 11LL and the upper frame 31 of panel unit 11LR. The portion of the catch pan 12 that contacts the upper frame 31, lower frame 32, or vertical frames 33 and 34 is elastically compressed, allowing it to adhere tightly to the upper frame 31, lower frame 32, or vertical frames 33 and 34.

The transverse diaphragm 102 covers the right end of the first region SL1 of the transverse isobaric space SL located between panel units 11UL and 11LL. The transverse diaphragm 103 covers the left end of the first region SL1 of the transverse isobaric space SL located between panel units 11UR and 11LR.

As described above, the lateral isobaric space SL is a defined (partitioned, formed) space enclosed by the catch pan 12, upper frame 31, lower frame 32, and sealing materials 61, 62, and 63. Similarly, the longitudinal isobaric space SV is a defined space enclosed by the catch pan 12, longitudinal frames 33, 34, and sealing materials 91, 92.

The longitudinal septum 101 of the catch pan 12 almost completely blocks both ends of the longitudinal isobaric space SV in the vertical direction. Furthermore, the transverse septums 102 and 103 of the catch pan 12 almost completely block both ends of the transverse isobaric space SL in the left-right direction. Therefore, the catch pan 12 separates the transverse isobaric space SL from the longitudinal isobaric space SV.

As shown in Figure 3, in this embodiment, a gondola rail SG is provided inside the interior walls 71, 72 and exterior walls 74, 76 of the vertical frame 33, and inside walls 81, 82 and exterior walls 84, 86 of the vertical frame 34. The gondola rail SG communicates with the outdoors and is substantially part of the outdoor space.

The longitudinal bulkhead 101 separates the longitudinal isobaric space SV from the gondola rail SG. The transverse bulkheads 102 and 103 each separate the transverse isobaric space SL from the gondola rail SG. The longitudinal isobaric space SV and the transverse isobaric space SL are separated by the catch pan 12 and the gondola rail SG.

As shown in Figure 4, the vertical partition wall 101 has an upper surface 101a and an outer surface 101b. The upper surface 101a faces upward. The upper surface 101a covers the lower end of the vertical isobaric space SV between the panel units 11UL and 11UR. The outer surface 101b faces the outside. The outer surface 101b faces the gondola rail SG.

A drainage channel 105 is provided in the vertical partition wall 101. The drainage channel 105 opens to the upper surface 101a and the outer surface 101b. Therefore, the drainage channel 105 connects the lower end of the vertical isobaric space SV between the panel units 11UL and 11UR to the gondola rail SG (outdoors). Water in the vertical isobaric space SV is discharged from the drainage channel 105 to the gondola rail SG.

As shown in Figures 2 and 3, the end SLi of the horizontal isobaric space SL on the indoor side is located on the outdoor side than the end SVi of the vertical isobaric space SV on the indoor side. The ends SLi and SVi can also be referred to as airtight lines. Furthermore, the end SLi of the horizontal isobaric space SL on the indoor side is located on the outdoor side than the end SVo of the vertical isobaric space SV on the outdoor side. That is, in the depth direction, the entire area of the horizontal isobaric space SL is located on the outdoor side of the vertical isobaric space SV. In the depth direction, the dimensions of the upper frame 31 and lower frame 32 are shorter than the dimensions of the vertical frames 33 and 34. Note that in the depth direction, a portion of the horizontal isobaric space SL may be located on the indoor side of a portion of the vertical isobaric space SV.

In the curtain wall 10 according to the embodiment described above, a vertical isobaric space SV is provided between the vertical frame 34 of panel unit 11UL and the vertical frame 33 of panel unit 11UR. A horizontal isobaric space SL is provided between the lower frame 32 of panel unit 11UL and the upper frame 31 of panel unit 11LL. The end SLi of the horizontal isobaric space SL on the indoor side is located on the outdoor side than the end SVi of the vertical isobaric space SV on the indoor side. As a result, in the depth direction, the dimensions of the upper frame 31 and the lower frame 32 may be shorter than the dimensions of the vertical frames 33 and 34. By setting the depth dimensions of the vertical frames 33 and 34, which can be subjected to greater loads, to be longer, a decrease in the strength of the curtain wall 10 is suppressed. On the other hand, by shortening the dimensions of the upper frame 31 and lower frame 32 in the projection direction, the curtain wall 10 can be made smaller, and consequently, its weight and cost can be reduced.

The curtain wall 10 further includes an elastic catch pan 12. The catch pan 12 is sandwiched between the lower frame 32 of panel unit 11UL and the lower frame 32 of panel unit 11UR, and also sandwiched between the vertical frame 34 of panel unit 11UL and the vertical frame 34 of panel unit 11LL. The catch pan 12 separates the vertical isobaric space SV and the horizontal isobaric space SL. That is, the vertical isobaric space SV and the horizontal isobaric space SL are independent of each other, making it easy to make their positions in the depth direction different. Furthermore, it becomes easy to maintain the atmospheric pressure in both the vertical isobaric space SV and the horizontal isobaric space SL approximately equal to the outside air pressure.

The catch pan 12 covers the lower end of the vertical isobaric space SV. A drainage channel 105 is provided in the catch pan 12, connecting the lower end of the vertical isobaric space SV to the outdoors. This allows water in the vertical isobaric space SV to be discharged through the drainage channel 105. Furthermore, since the catch pan 12, which separates the vertical isobaric space SV and the horizontal isobaric space SL, also serves as a component for draining water from the vertical isobaric space SV, the cost of the curtain wall 10 can be reduced.

The catch pan 12 covers one end of the lateral isobaric space SL. This improves the airtightness of the lateral isobaric space SL.

The end SLi of the horizontal isobaric space SL on the indoor side is located further outdoors than the end SVo of the vertical isobaric space SV on the outdoor side. That is, the entire horizontal isobaric space SL is located further outdoors than the vertical isobaric space SV. This allows the curtain wall 10 to reduce the size of the upper frame 31 and lower frame 32, and consequently, the weight and cost of the upper frame 31 and lower frame 32.

The embodiments of the present invention described above are not intended to limit the scope of the invention, but are merely examples that fall within the scope of the invention. Some embodiments of the present invention may be modified, omitted, or added to the above embodiments, for example, in terms of at least some of the specific uses, structures, shapes, functions, and effects, without departing from the spirit of the invention.

The Sustainable Development Goals (SDGs) are 17 international goals adopted at the UN Summit in September 2015. The curtain wall 10 according to this embodiment can contribute to achieving some of these 17 SDGs, such as Goal 11, "Make cities and human settlements inclusive, safe, resilient and sustainable."

10…Curtain wall, 11…Panel unit, 11UL…Panel unit (first panel unit), 11UR…Panel unit (second panel unit), 11LL…Panel unit (third panel unit), 12…Catch pan (partition member), 21…Panel (exterior wall material), 21a…Upper edge, 21b…Lower edge, 21c, 21d…Side edges, 31…Upper frame, 32…Lower frame, 33, 34…Vertical frame, 105…Drainage channel, SV…Vertical isobaric space (first isobaric space), SL…Horizontal isobaric space (second isobaric space).

Claims (5)

Multiple panel units are arranged in the vertical and horizontal directions, each having a plate-shaped exterior wall material, an upper frame attached to the upper edge of the exterior wall material, a lower frame attached to the lower edge of the exterior wall material, and vertical frames attached to the side edges of the exterior wall material.
Partition members and
It is equipped with,
A first isobaric space is provided between the vertical frame of a first panel unit, which is one of the plurality of panel units, and the vertical frame of a second panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the left-right direction.
A second isobaric space is provided between the lower frame of the first panel unit and the upper frame of the third panel unit, which is one of the plurality of panel units that is vertically adjacent to the first panel unit.
The end of the second isobaric space on the indoor side is located on the outdoor side than the end of the first isobaric space on the indoor side .
The partition member is sandwiched between the lower frame of the first panel unit and the lower frame of the second panel unit, and sandwiched between the vertical frame of the first panel unit and the vertical frame of the third panel unit, separating the first equal-pressure space and the second equal-pressure space.
Curtain wall. The partition member has elasticity ,
A curtain wall according to claim 1. The curtain wall according to claim 1 or 2 , wherein the partition member covers the lower end of the first isobaric space, and a drainage channel is provided that connects the lower end of the first isobaric space to the outdoors. The curtain wall according to claim 1 or claim 2, wherein the partition member covers one end of the second isobaric space. Multiple panel units are arranged in the vertical and horizontal directions, each having a plate-shaped exterior wall material, an upper frame attached to the upper edge of the exterior wall material, a lower frame attached to the lower edge of the exterior wall material, and a vertical frame attached to the side edge of the exterior wall material.
It is equipped with,
A first isobaric space is provided between the vertical frame of a first panel unit, which is one of the plurality of panel units, and the vertical frame of a second panel unit, which is one of the plurality of panel units adjacent to the first panel unit in the left-right direction.
A second isobaric space is provided between the lower frame of the first panel unit and the upper frame of the third panel unit, which is one of the plurality of panel units that is vertically adjacent to the first panel unit.
The end of the second isobaric space on the indoor side is located on the outdoor side than the end of the first isobaric space on the indoor side.
The end of the second isobaric space on the indoor side is located further outdoors than the end of the first isobaric space on the outdoor side.
Curtain wall.