Curtain wall

Abstract

To provide a curtain wall capable of improving the design of a mullion that holds the panel body at the indoor side of the panel body.SOLUTION: A curtain wall 1 includes: a panel body 5; a mullion 2 placed at the indoor side of the panel body 5; a head 50 placed at the outdoor side of the panel body 5; a receiving member 30 fixed to the mullion 2; and an intervening member 60 intervening between the receiving member 30 and the mullion 2. The receiving member 30 receives the head 50, and the head 50 holds the panel body 5 between the mullion 2 and the same.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a curtain wall having a panel body and mullions.

Background Art

[0002] In a curtain wall having a plurality of mullions, the plurality of mullions are arranged side by side, and the panel body is held by the mullions. The mullions are attached to the building frame at a plurality of positions spaced apart in the vertical - vertical direction and supported by the building frame. Further, when installing a mullion at a location where the vertical interval of the building frame is large, such as a through part of the building, as the interval between the attachment positions of the mullion to the building frame becomes wider, the strength of the mullion may be required. Conventionally, a curtain wall provided with a steel mullion, which can relatively easily ensure strength, in a part of the mullion is known (see Patent Document 1).

[0003] In the conventional curtain wall described in Patent Document 1, a steel mullion is arranged at a position closer to the indoor side than the glass panel which is the panel body. Further, an aluminum mullion is connected to the outdoor side surface of the steel mullion, and the glass panel is held by the aluminum mullion. However, on the indoor side of the glass panel, both the aluminum mullion and the steel mullion constituting the mullion are exposed, and their textures are mixed. Therefore, in the conventional curtain wall, on the indoor side of the glass panel, there is no unity in the texture of the mullion, and there is room for improvement from the viewpoint of the design property of the mullion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0006] The present invention Panel body and A mullion positioned on the indoor side of the panel body, A retaining strip is provided on the outdoor side of the panel body to hold the panel body between itself and the mullion, A support member fixed to the aforementioned mullion and receiving the aforementioned trim, An intervening member between the support member and the mullion, Equipped with, The mullion has an outdoor portion located on the indoor side of the panel body, The outdoor side portion of the mullion has a holding portion for holding the panel body and a groove portion for which the support material is placed, The intervening member is interposed between the receiving member and the groove. It is a curtain wall. [Effects of the Invention]

[0007] According to the present invention, the aesthetic design of the mullions that hold the curtain wall panels on the interior side can be improved. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view showing the curtain wall of the first embodiment. [Figure 2] This is a longitudinal cross-sectional view of the curtain wall according to the first embodiment. [Figure 3] This is a cross-sectional view of the curtain wall according to the first embodiment. [Figure 4] This is a cross-sectional view of the curtain wall of the second embodiment. [Figure 5] This is a cross-sectional view of the curtain wall of the third embodiment. [Figure 6] This is a cross-sectional view of the curtain wall according to the fourth embodiment. [Figure 7] This is a cross-sectional view of the curtain wall according to the fifth embodiment. [Figure 8] Cross-sectional view of the curtain wall according to the sixth embodiment. [Figure 9] Cross-sectional view of the curtain wall according to the seventh embodiment.

Mode for Carrying Out the Invention

[0009] An embodiment of the curtain wall of the present invention will be described with reference to the drawings. The curtain wall of this embodiment is a wall used for the outer wall of a building and is installed between the interior (indoors) and exterior (outdoors) of the building. Hereinafter, as an example of the curtain wall, a plurality of embodiments of a knockdown-type curtain wall will be described.

[0010] (First Embodiment) FIG. 1 is a front view showing the curtain wall 1 of the first embodiment, and schematically shows a schematic configuration of the curtain wall 1 by omitting a description of a part of the configuration of the curtain wall 1. As shown in the figure, the curtain wall 1 is installed at a location on the outer wall 11 of the building 10 and forms the outer wall 11 of the building 10. Further, the curtain wall 1 is disposed on the outdoor side of the building frame (not shown) of the building 10 and is attached to the building frame of the building 10.

[0011] [[ID=2,6]]When the curtain wall 1 installed on the building 10 is viewed from the front, the up-and-down direction is the vertical direction R, and the left-and-right direction is the horizontal direction S. In FIG. 1, the vertical direction R is the vertical direction, and the horizontal direction S is the horizontal direction. The indoor-outdoor direction is the indoor-outdoor direction (indoor-outdoor direction) in the curtain wall 1 installed on the building 10. Further, the indoor-outdoor direction is the front-back direction when the curtain wall 1 installed on the building 10 is viewed from the front, and in FIG. 1, it is the horizontal direction orthogonal to the horizontal direction S. Thus, the direction regarding the curtain wall 1 is specified in the state of being installed on the building 10. Also, the indoor side and the outdoor side regarding the curtain wall 1 are the indoor side and the outdoor side in the state of being installed on the building 10.

[0012] The curtain wall 1 includes a plurality of vertical members 2 attached to the building structure of the building 10, a plurality of horizontal members 3 attached to the vertical members 2, a plurality of openings 4 formed by the vertical members 2 and the horizontal members 3, and a plurality of panel bodies 5 disposed in the openings 4. The panel body 5 is a square panel-shaped member and is disposed in each of the plurality of openings 4. Also, the panel body 5 is a fixed panel body fixed to the opening 4 and closes the opening 4. The plurality of openings 4 are formed side by side in the vertical direction R and the horizontal direction S, and the plurality of panel bodies 5 are arranged side by side in the vertical direction R and the horizontal direction S.

[0013] The vertical member 2 is a vertical member extending in the vertical direction R (longitudinal direction) and is installed at intervals in the horizontal direction S. The plurality of vertical members 2 are spaced apart from each other in the horizontal direction S with the opening 4 sandwiched therebetween, and are arranged in order in the horizontal direction S on the outer wall 11 of the building 10. The horizontal member 3 is a horizontal member extending in the horizontal direction S (lateral direction) and is disposed between each pair of adjacent vertical members 2 in the horizontal direction S and spans between the left and right vertical members 2. Between the adjacent vertical members 2 in the horizontal direction S, the horizontal member 3 is arranged at intervals in the vertical direction R and is attached to the left and right vertical members 2. The plurality of horizontal members 3 are spaced apart from each other in the vertical direction R with the opening 4 sandwiched therebetween, and are arranged in order in the vertical direction R on the outer wall 11 of the building 10.

[0014] The plurality of vertical members 2 and the plurality of horizontal members 3 are combined in a grid-like (frame-like) manner to form a plurality of square openings 4. The plurality of openings 4 are arranged side by side in the horizontal direction S with the vertical member 2 sandwiched therebetween, and are arranged side by side in the vertical direction R with the horizontal member 3 sandwiched therebetween. Also, the opening 4 is formed on both the left and right sides of the vertical member 2 in the horizontal direction S and is formed on both the upper and lower sides of the horizontal member 3 in the vertical direction R. The panel body 5 is a glass panel body (e.g., laminated glass, composite glass, plate glass), is held by the vertical member 2 and the horizontal member 3, and is fixed to the opening 4. In that state, the panel body 5 is disposed on both the left and right sides of the vertical member 2 in the horizontal direction S and is disposed on both the upper and lower sides of the horizontal member 3 in the vertical direction R.

[0015] Figure 2 is a longitudinal cross-sectional view of the curtain wall 1 of the first embodiment, showing the curtain wall 1 cut at the transom 3 by a plane including the vertical direction R and the indoor-outdoor direction T. As shown in the figure, the curtain wall 1 comprises brackets 20 fixed to the left and right sides of the mullion 2, a cover 21 that covers the transom 3 and brackets 20, and a trim strip 22 attached to the transom 3. The ends on both sides of the transom 3 in the longitudinal direction (left-right direction S) are fixed to the brackets 20 and attached to the sides of the mullion 2 via the brackets 20. The cover 21 is located on the interior side of the panel body 5 and houses the transom 3 and brackets 20.

[0016] The panel body 5 has an edge (horizontal edge 5A) extending in the left-right direction S and is arranged side by side in the up-down direction R. The transom 3 is positioned on the indoor side of adjacent upper and lower panel bodies 5 (here, horizontal edge 5A) in the up-down direction R, and holds the upper and lower panel bodies 5 on the indoor side of the panel body 5. The trim 22 is a horizontal trim extending in the left-right direction S, and is located on the outdoor side of the transom 3 and the horizontal edge 5A of the panel body 5, and is positioned along the transom 3 and the horizontal edge 5A of the panel body 5. The trim 22 is also positioned on the outdoor side of the upper and lower panel bodies 5 (horizontal edge 5A), and holds the upper and lower panel bodies 5 between itself and the transom 3. In the indoor-outdoor direction T, the upper and lower panel bodies 5 are positioned between the transom 3 and the trim 22 and are held between the transom 3 and the trim 22.

[0017] Figure 3 is a cross-sectional view of the curtain wall 1 of the first embodiment, showing the curtain wall 1 cut at the location of the mullion 2 by a plane including the left-right direction S and the interior-exterior direction T. As shown in the figure, the panel body 5 has an edge (vertical edge 5B) extending in the vertical direction R, and is arranged side by side in the left-right direction S with a gap between them in the left-right direction S. The mullion 2 is positioned on the indoor side of adjacent left and right panel bodies 5 (here, the vertical edge 5B) in the left-right direction S, and holds the left and right panel bodies 5 on the indoor side of the panel body 5. The left and right panel bodies 5 (vertical edge 5B) are positioned on the outdoor side of the common mullion 2 and are held on the outdoor side of the mullion 2. Here, the mullion 2 is made of steel and is positioned only on the indoor side of the panel body 5. Also, the mullion 2 is a solid material without a hollow part and is formed in a solid shape. The dimension of the mullion 2 in the indoor-outdoor direction T (depth direction) is larger than the dimension of the mullion 2 in the left-right direction S (face direction).

[0018] The curtain wall 1 comprises a support member 30 fixed to the mullion 2, fixing hardware 40 such as screws and bolts for fixing the support member 30 to the mullion 2, a sealing washer 41 sandwiched between the fixing hardware 40 and the support member 30, a trim strip 50 attached to the support member 30, and an intervening member 60 interposed between the support member 30 and the mullion 2. The support member 30 and the trim strip 50 are made of aluminum alloy. The support member 30, the trim strip 50, and the intervening member 60 extend in the longitudinal direction (vertical direction R) of the mullion 2 and are arranged along the mullion 2.

[0019] The fixing bracket 40 is screwed into the threaded hole of the mullion 2 from the outside by inserting it through the insertion hole of the sealing washer 41 and the insertion hole of the support material 30. In this way, the fixing bracket 40 is fixed to the threaded hole of the mullion 2 and attached to the mullion 2. The sealing washer 41 and the support material 30 are sandwiched between the head of the fixing bracket 40 and the mullion 2, and the sealing washer 41 is sandwiched between the head of the fixing bracket 40 and the support material 30. The sealing washer 41 is an annular washer having a sealing material (for example, rubber), and the sealing material prevents water from entering the area between the fixing bracket 40 and the support material 30 on the outside of the support material 30. The sealing washer 41 prevents water such as rainwater from entering the area between the fixing bracket 40 and the support material 30.

[0020] The support member 30 and the intervening member 60 are located on the interior side of the panel body 5. The support member 30 is fixed to the mullion 2 at a position on the interior side of the panel body 5 and receives the trim strip 50. The trim strip 50 is connected to the mullion 2 via the support member 30. The intervening member 60 is attached to the support member 30 and sandwiched between the support member 30 and the mullion 2. The intervening member 60 is also an elastically deformable watertight material and is in close contact with the support member 30 and the mullion 2. The intervening member 60 seals the area between the support member 30 and the mullion 2, preventing water from entering that area.

[0021] The trim strip 50 is a vertical trim strip, attached to and secured by the support member 30. The trim strip 50 is positioned from the support member 30 to the exterior side of the panel body 5, on the exterior side of the mullion 2, the support member 30, and the vertical edge portion 5B of the panel body 5, and is positioned along the mullion 2, the support member 30, and the vertical edge portion 5B of the panel body 5. The trim strip 50 is positioned on the exterior side of the left and right panel bodies 5 (vertical edge portions 5B), and holds the left and right panel bodies 5 between itself and the mullion 2. In the interior-exterior direction T, the left and right panel bodies 5 are positioned between the mullion 2 and the trim strip 50 and are held between the mullion 2 and the trim strip 50.

[0022] The mullion 2 has an outdoor portion 70 located on the indoor side of the panel body 5. The outdoor portion 70 of the mullion 2 is the part of the mullion 2 that is located on the outdoor side and is positioned facing the outdoors. The panel body 5 is located on the outdoor side of the outdoor portion 70 of the mullion 2, and the outdoor portion 70 of the mullion 2 is positioned opposite the panel body 5 in the indoor-outdoor direction T. The support member 30 is fixed to the outdoor portion 70 of the mullion 2. The intervening member 60 is sandwiched between the support member 30 and the outdoor portion 70 of the mullion 2 and interposed between the support member 30 and the outdoor portion 70 of the mullion 2. The trim 50 holds the panel body 5 between itself and the outdoor portion 70 of the mullion 2.

[0023] The outdoor portion 70 of the mullion 2 has two holding portions (indoor holding portions 71) on the left and right sides that hold the left and right panel bodies 5 on the indoor side, and a groove portion 72 in which the support material 30 is placed. The left and right indoor holding portions 71 and the groove portion 72 are provided in parallel on the outdoor portion 70 of the mullion 2 and each extends in the longitudinal direction of the mullion 2. The indoor holding portions 71 are opposing portions provided on a part of the outdoor portion 70 of the mullion 2, and are each located on the indoor side of the panel body 5 and are positioned opposite to the panel body 5 in the indoor-outdoor direction T. The indoor holding portions 71 are provided on the left and right edge sides of the outdoor portion 70 of the mullion 2 and are located on both sides in the left-right direction S of the groove portion 72. The left and right panel bodies 5 are each held between the indoor holding portions 71 of the mullion 2 and the trim 50.

[0024] The left and right indoor-side retaining portions 71 of the mullion 2 are separated from each other in the left-right direction S, with a groove 72 in between, and each holds the left and right panel bodies 5. The groove 72 is a recess provided in a part of the outdoor-side portion 70 of the mullion 2 (the portion other than the indoor-side retaining portions 71), and is located on the indoor side of the space (gap 5C) between the left and right panel bodies 5. The groove 72 is also provided in the central part of the outdoor-side portion 70 of the mullion 2 in the left-right direction S (the portion between the left and right indoor-side retaining portions 71), and is formed in a concave shape at the location adjacent to the indoor-side retaining portions 71 of the outdoor-side portion 70 of the mullion 2. The groove 72 is located between the left and right indoor-side retaining portions 71, and is recessed toward the indoor side and open toward the outdoor side relative to the left and right indoor-side retaining portions 71.

[0025] The support member 30 is positioned within the groove 72 of the mullion 2 and fixed to the groove 72. In this state, the entire or a part of the support member 30 (in this case, the entire) is housed within the groove 72, and the two left and right intervening members 60 are sandwiched between the support member 30 and the groove 72 (the inner surface of the groove 72). The left and right intervening members 60 are interposed between the support member 30 and the groove 72 and are sandwiched between the portion of the groove 72 adjacent to the left and right indoor-side holding portions 71 and the support member 30. Within the groove 72, the intervening members 60 between the support member 30 and the groove 72 seal off the area between the support member 30 and the groove 72, preventing water from entering the area between the support member 30 and the groove 72.

[0026] The groove 72 of the mullion 2 has two groove walls 73 on the left and right that face each other in the left-right direction S, and a groove bottom 74 located between the left and right groove walls 73. The groove bottom 74 is located at the bottom of the groove 72 and is arranged along the left-right direction S. The left and right groove walls 73 protrude outward from the left and right edges of the groove bottom 74 and are arranged along the indoor-outdoor direction T.

[0027] The support member 30 is positioned within the groove 72, spanning the left and right groove walls 73, and covers the entire groove 72. Furthermore, within the groove 72, the support member 30 is positioned along the inner surface of the groove 72 (the left and right groove walls 73 and the groove bottom 74) from one of the left and right groove walls 73 to the other groove wall 73, and is positioned along the groove walls 73 with a gap between it and each of the left and right groove walls 73.

[0028] The support member 30 has a fixing portion 31 fixed to the mullion 2, two mounting portions 32 on the left and right that protrude outward from the fixing portion 31, and two groove-shaped mounting portions 33 on the left and right. Within the groove portion 72 of the mullion 2, the fixing portion 31 of the support member 30 is fixed to the groove bottom 74 of the groove portion 72 by a fixing fitting 40. The left and right mounting portions 32 each have two locking portions 34 that lock onto the trim 50, and they face each other in the left-right direction S. The two locking portions 34 are hooks that protrude inward toward the interior and are formed spaced apart from each other in the interior-outterior direction T. The locking portions 34 are formed on each of the opposing portions of the left and right mounting portions 32, and the locking portions 34 of the left and right mounting portions 32 face each other in the left-right direction S.

[0029] The left and right mounting portions 33 of the support member 30 are formed on the lateral portions on both sides of the support member 30 in the left-right direction S (the portions on the opposing groove walls 73 sides of the left and right mounting portions 32). The intervening member 60 is attached to each of the left and right mounting portions 33 and is interposed on both sides of the support member 30 in the left-right direction S, sandwiched between the mounting portions 33 of the support member 30 and the groove walls 73 of the groove portion 72, and between the mounting portions 32 of the support member 30 and the groove walls 73 of the groove portion 72, which are opposite to each other. In this way, the intervening member 60 is sandwiched between the support member 30 and the left and right groove walls 73 of the groove portion 72 (here, the outdoor-facing portions of the groove walls 73), and is interposed between the support member 30 and the left and right groove walls 73 of the groove portion 72. The intervening member 60 seals off the area between the support member 30 and the left and right groove walls 73, preventing water from entering the area between the support member 30 and the left and right groove walls 73.

[0030] The trim strip 50 has two holding parts (outside holding parts 51) on the left and right sides that hold the left and right panel bodies 5 on the outdoor side, a protruding wall part 52 that projects inward from the outside holding parts 51, and two locking parts 53 that project outward from the protruding wall part 52 to one side in the left-right direction S. The outside holding parts 51 are connected to the outside ends of the protruding wall part 52. The two locking parts 53 are connected to the indoor portion of the protruding wall part 52 and are formed spaced apart from each other in the indoor-outdoor direction T. The protruding wall part 52 extends from the outside holding parts 51 to a position within the groove part 72 of the mullion 2 and is positioned in the gap 5C between the left and right panel bodies 5.

[0031] The interior portion of the protruding wall portion 52 and the two locking portions 53 are positioned within the groove portion 72 of the mullion 2, between the left and right mounting portions 32 of the support member 30. The two locking portions 53 of the trim strip 50 are hooked from the interior side onto the locking portion 34 of one of the left and right mounting portions 32, and are locked to the locking portion 34 of the mounting portion 32. Within the groove portion 72 of the mullion 2, the trim strip 50 is locked to the locking portion 34 by the locking portions 53 and attached to the locking portion 34 and mounting portion 32 of the support member 30. The support member 30 receives and holds the trim strip 50 in a state where the trim strip 50 protrudes from the mullion 2 toward the exterior side.

[0032] The outdoor-facing holding portion 51 of the trim 50 protrudes from the protruding wall portion 52 on both sides in the left-right direction S and is arranged along the left-right direction S. The left and right outdoor-facing holding portions 51 are opposing portions located on the outdoor side of the mullion 2's outdoor-facing portion 70 and the panel body 5 (vertical edge portion 5B), respectively, and are arranged opposite to the panel body 5 in the indoor-outdoor direction T. The left and right panel bodies 5 are arranged between the indoor-side holding portion 71 of the mullion 2 and the outdoor-side holding portion 51 of the trim 50, respectively, in the indoor-outdoor direction T, and are held between the indoor-side holding portion 71 of the mullion 2 and the outdoor-side holding portion 51 of the trim 50. The mullion 2 holds the panel body 5 on the indoor side with its indoor-side holding portion 71, and the trim 50 holds the panel body 5 on the outdoor side with its outdoor-side holding portion 51.

[0033] A backup material 42 and a sealing material 43 are provided between the indoor-side retaining portion 71 of the mullion 2 and the panel body 5. The sealing material 43 is supported by the backup material 42 and fills the space between the indoor-side retaining portion 71 of the mullion 2 and the panel body 5. The sealing material 43 seals the space between the indoor-side retaining portion 71 of the mullion 2 and the panel body 5. In addition, a backup material 44 and a sealing material 45 are provided between the outdoor-side retaining portion 51 of the trim 50 and the panel body 5. The sealing material 45 is supported by the backup material 44 and fills the space between the outdoor-side retaining portion 51 of the trim 50 and the panel body 5. The sealing material 45 seals the space between the outdoor-side retaining portion 51 of the trim 50 and the panel body 5. In the left-right direction S, the sealing materials 43 and 45 are located on the opposite side of the groove 72 and gap 5C from the backup materials 42 and 44.

[0034] In the curtain wall 1 described above, the trim 50 is supported by the support member 30, and the panel body 5 is held between the trim 50 and the mullion 2. Furthermore, on the interior side of the panel body 5, the support member 30 is not exposed, and only the mullion 2 is exposed, creating a sense of texture uniformity. Therefore, the design of the mullion 2 that holds the panel body 5 on the interior side of the curtain wall 1 can be improved. The intervening member 60 between the support member 30 and the mullion 2 can protect the mullion 2 from water such as rainwater, and can also ensure watertightness at the location of the support member 30. As a result, corrosion of the mullion 2 due to water can be suppressed, and the durability of the mullion 2 can be improved.

[0035] By placing the support member 30 within the groove 72 of the mullion 2, the aesthetic design of the curtain wall 1 can be enhanced. Furthermore, the intervening member 60 protects the groove 72 of the mullion 2 from water, improving the durability of both the groove 72 and the mullion 2. By interposing the intervening member 60 between the support member 30 and the left and right groove walls 73 of the groove 72, water intrusion into the groove 72 of the mullion 2 can be suppressed. This prevents water from coming into contact with the groove 72 of the mullion 2, thereby ensuring the durability of the groove 72 of the mullion 2.

[0036] The sealing washer 41 between the fixing bracket 40 and the support material 30 prevents water from entering the area between the fixing bracket 40 and the support material 30, thus preventing water from penetrating to the mullion 2. This improves the durability of the mullion 2. By making the support material 30 and the trim 50, which are located on the exterior side of the mullion 2, from aluminum alloy, the weather resistance and durability of the support material 30 and the trim 50 can be ensured. By making the mullion 2 from steel, the strength of the mullion 2 can be ensured while suppressing an increase in the cost of the mullion 2. In addition, with a steel mullion 2, the dimension of the mullion 2 in the interior-exterior direction T can be made smaller compared to a mullion 2 made from a material other than steel.

[0037] Furthermore, the support members 30 and the trim 50 are not limited to being made of various aluminum alloys, but may be made of materials other than aluminum alloys (for example, stainless steel). Also, the mullions 2 are not limited to being made of various steels (for example, carbon steel, special steel, stainless steel), but may be made of materials other than steel (for example, aluminum alloy, wood). The intervening member 60 is not limited to being a member that has only a watertight function, but may be a member that has a watertight function and other functions, or a member that has a function other than a watertight function, for example, an insulating material. Various shapes (for example, strip-shaped, ribbon-shaped, sheet-shaped) can be used for the intervening member 60. The dimension T of the mullion 2 in the indoor-outdoor direction may be the same as the dimension S of the mullion 2 in the left-right direction, or it may be smaller than the dimension S of the mullion 2 in the left-right direction.

[0038] Within the groove 72 of the mullion 2, the intervening member 60 may be interposed not only between the support member 30 and the left and right groove walls 73, but also between the support member 30 and the part of the groove 72 other than the groove walls 73 (for example, the groove bottom 74), or instead of being interposed between the support member 30 and the left and right groove walls 73, it may be interposed between the support member 30 and the part of the groove 72 other than the groove walls 73. The support member 30 may be fixed to the mullion 2 (for example, the outdoor side part 70 of the mullion 2) without providing a groove 72 on the outdoor side part 70 of the mullion 2. The shape of the mullion 2 may be other than a solid shape (for example, a hollow shape).

[0039] Here, an example of a curtain wall 1 in which multiple panel bodies 5 are arranged to form a plane has been described. However, the present invention is not limited to such a plane, and can be applied to a curtain wall 1 in which multiple panel bodies 5 are arranged to form various shapes (for example, curved surfaces, polygonal surfaces).

[0040] Next, we will describe the curtain wall 1 in other embodiments. In the following embodiments, we will omit explanations of matters that are the same as in the first embodiment and mainly explain matters that differ from the first embodiment. In addition, in the following embodiments, the same names as in the first embodiment will be used for configurations that correspond to the configuration of the first embodiment.

[0041] (Second Embodiment) Figure 4 is a cross-sectional view of the curtain wall 1 of the second embodiment, and, similar to Figure 3, the curtain wall 1 is shown cut at the location of the mullion 2.

[0042] As shown in the figure, the mullion 2 in the curtain wall 1 of the second embodiment differs from the mullion 2 of the first embodiment. The mullion 2 is formed in a hollow shape and has a hollow portion 2A extending in the longitudinal direction of the mullion 2. The mullion 2 also has two side members 2B and two spacer members 2C made of steel flat bars. The two side members 2B are located on both sides (left and right side parts) of the mullion 2 in the left-right direction S and are arranged opposite each other with space between them in the left-right direction S. The two spacer members 2C are sandwiched between the two left and right side members 2B with space between them in the indoor-outdoor direction T.

[0043] The left and right side members 2B are connected to each other by connectors 2D at each point on the spacer members 2C. The hollow portion 2A of the mullion 2 is surrounded by the side members 2B and the spacer members 2C, and is formed between the left and right side members 2B, between the two spacer members 2C, and inside the mullion 2. The left and right indoor-side holding portions 71 of the mullion 2 are the outdoor-side end faces of the left and right side members 2B. Of the two spacer members 2C, the outdoor-side spacer member 2C is provided at a position spaced indoors from the indoor-side holding portion 71.

[0044] The groove 72 of the mullion 2 is formed on the outdoor side portion 70 of the mullion 2, between the left and right side members 2B and the outdoor side spacer member 2C, and on the outdoor side of the outdoor side spacer member 2C. The left and right groove walls 73 of the groove 72 are the opposing surfaces (groove 72 side surfaces) of the left and right side members 2B, and the groove bottom 74 of the groove 72 is the outdoor side surface of the outdoor side spacer member 2C. Thus, the mullion 2 may be formed by combining multiple flat bars, or by combining multiple members other than flat bars. Furthermore, the mullion 2 may be formed in a hollow or solid shape using multiple flat bars or multiple members other than flat bars.

[0045] (Third embodiment) Figure 5 is a cross-sectional view of the curtain wall 1 of the third embodiment, and, similar to Figure 3, the curtain wall 1 is shown cut at the location of the mullion 2.

[0046] As shown in the figure, in the curtain wall 1 of the third embodiment, the support member 30 and the intervening member 60 differ from the support member 30 and the intervening member 60 of the first embodiment, respectively. The support member 30 does not have a mounting portion 33, and the intervening member 60 is made of an irregularly shaped sealing material. After the sealing material is applied to the inner surface of the groove 72 of the mullion 2, the support member 30 is inserted into the groove 72 of the mullion 2 from the outside and positioned within the groove 72 of the mullion 2. As a result, the intervening member 60 is sandwiched throughout between the support member 30 and the groove 72 of the mullion 2 (left and right groove walls 73 and groove bottom 74), and intervenes throughout the entire space between the support member 30 and the groove 72 of the mullion 2. As a result, the intervening member 60 protects the space between the support member 30 and the groove 72 of the mullion 2 from water throughout the entire space, improving the water resistance of the groove 72 and the mullion 2.

[0047] (Fourth Embodiment) Figure 6 is a cross-sectional view of the curtain wall 1 of the fourth embodiment, and, similar to Figure 3, shows the curtain wall 1 cut at the location of the mullion 2. As shown in the figure, in the curtain wall 1 of the fourth embodiment, the support member 30 and the backup member 42 differ from the support member 30 and the backup member 42 of the first embodiment, respectively.

[0048] The support member 30 has two projections 35 on the left and right that protrude outwards. The projections 35 are located on the indoor side of each of the left and right panel bodies 5 and are positioned opposite to the panel body 5 in the indoor-outdoor direction T. The projections 35 are also provided at the outdoor end of the support member 30 and protrude to a position further outwards than the mullion 2 and the outdoor portion 70 of the mullion 2 (indoor holding portion 71, groove portion 72). On the indoor side of the panel body 5, the projections 35 are located outside the groove portion 72 of the mullion 2 and protrude toward the panel body 5.

[0049] The mounting portion 32 and projection portion 35 of the support member 30 are formed offset in the left-right direction S, and the outdoor end of the support member 30 is formed in a bent shape from the mounting portion 32 toward the outdoor tip of the projection portion 35. On each of the left and right indoor holding portions 71 of the mullion 2, the projection portion 35 of the support member 30 is located on the outdoor side of the indoor holding portion 71 of the mullion 2, protruding from the indoor holding portion 71 of the mullion 2 toward the panel body 5, and is positioned between the indoor holding portion 71 of the mullion 2 and the panel body 5 in the indoor-outdoor direction T.

[0050] The two backup members 42 on the left and right are attached to the left and right projections 35 of the support member 30 and are held by the projections 35 of the support member 30. At each of the left and right projections 35 of the support member 30, the backup members 42 are sandwiched between the support member 30 and the panel body 5, and between the mullion 2 and the panel body 5, on the indoor side of the panel body 5. With the backup members 42 sandwiched between the support member 30 and the panel body 5, they are also sandwiched between the indoor holding portion 71 of the outdoor side portion 70 of the mullion 2 and the panel body 5.

[0051] (Fifth embodiment) Figure 7 is a cross-sectional view of the curtain wall 1 of the fifth embodiment, and, similar to Figure 3, the curtain wall 1 is shown cut at the location of the mullion 2.

[0052] As shown in the figure, the curtain wall 1 of the fifth embodiment is configured in the same way as the curtain wall 1 of the fourth embodiment and performs the same functions and effects as the curtain wall 1 of the fourth embodiment. For this reason, the support member 30 has left and right projections 35. However, the curtain wall 1 of the fifth embodiment differs from the curtain wall 1 of the fourth embodiment in the following respects to the projections 35 of the support member 30 and the backup member 42.

[0053] The mounting portion 32 and projection portion 35 of the support member 30 are formed aligned in the left-right direction S, and the outdoor end of the support member 30 is formed in a protruding shape that extends outward from the mounting portion 32 toward the outdoor tip of the projection portion 35. On each of the left and right mounting portions 32 of the support member 30, the projection portion 35 is located on the outdoor side of the mounting portion 32 and protrudes toward the panel body 5 from the mounting portion 32, and is positioned between the mounting portion 32 and the panel body 5 in the indoor-outdoor direction T.

[0054] The backup material 42 is sandwiched only between the support material 30 and the panel body 5 on the indoor side of the panel body 5, and not between the mullion 2 and the panel body 5. In the curtain wall 1 of the fifth embodiment, the backup material 42 may be sandwiched between the support material 30 and the panel body 5 and between the mullion 2 and the panel body 5, similar to the curtain wall 1 of the fourth embodiment.

[0055] (Sixth Embodiment) Figure 8 is a cross-sectional view of the curtain wall 1 of the sixth embodiment, and, similar to Figure 3, shows the curtain wall 1 cut at the location of the mullion 2.

[0056] As shown in the figure, the curtain wall 1 of the sixth embodiment is configured in the same way as the curtain wall 1 of the fifth embodiment, and performs the same functions and effects as the curtain wall 1 of the fifth embodiment. For this reason, the support member 30 has left and right projections 35. However, the curtain wall 1 of the sixth embodiment differs from the curtain wall 1 of the fifth embodiment in the following respects to the projections 35 of the support member 30 and the backup member 42.

[0057] At each of the left and right projections 35 of the support member 30, the backup material 42 is not attached to the projection 35 of the support member 30, but is sandwiched between the projection 35 of the support member 30 and the panel body 5. Also, similar to the curtain wall 1 of the fourth embodiment, the backup material 42 is sandwiched between the support member 30 and the panel body 5, and between the mullion 2 and the panel body 5 on the indoor side of the panel body 5. With the backup material 42 sandwiched between the support member 30 and the panel body 5, it is sandwiched between the indoor holding portion 71 of the outdoor side portion 70 of the mullion 2 and the panel body 5.

[0058] (Seventh Embodiment) Figure 9 is a cross-sectional view of the curtain wall 1 of the seventh embodiment, and, similar to Figure 3, the curtain wall 1 is shown cut at the location of the mullion 2. As shown in the figure, in the curtain wall 1 of the seventh embodiment, the mullions 2, support members 30, intervening members 60, and backup members 42 differ from those of the mullions 2, support members 30, intervening members 60, and backup members 42 of the first embodiment, respectively.

[0059] The outdoor portion 70 of the mullion 2 does not have a groove 72 between the left and right indoor holding portions 71, and is formed in a planar shape that is arranged along the left-right direction S. The support member 30 is positioned on the outdoor side of the outdoor portion 70 of the mullion 2 and is fixed by a fixing bracket 40 to the portion of the outdoor portion 70 of the mullion 2 between the left and right indoor holding portions 71. However, a sealing washer 41 is not provided between the fixing bracket 40 and the support member 30. The intervening member 60 is located on the indoor side of the support member 30 and on the outdoor side of the outdoor portion 70 of the mullion 2, and is sandwiched between the support member 30 and the outdoor portion 70 of the mullion 2, interposing between the support member 30 and the outdoor portion 70 of the mullion 2. Note that the outdoor portion 70 of the mullion 2 is not limited to a planar shape, but may have other shapes (for example, a curved shape, a polygonal shape).

[0060] The fixing bracket 40 is inserted from the outside through the insertion hole in the support material 30 and the insertion hole in the intervening member 60 and screwed into the screw hole in the outside portion 70 of the mullion 2. In this way, the fixing bracket 40 is fixed to the screw hole in the outside portion 70 of the mullion 2 and attached to the outside portion 70 of the mullion 2. The support material 30 and the intervening member 60 are sandwiched between the head of the fixing bracket 40 and the outside portion 70 of the mullion 2, and are interposed between the head of the fixing bracket 40 and the outside portion 70 of the mullion 2. The intervening member 60 seals the area between the support material 30 and the outside portion 70 of the mullion 2, preventing water from entering the area between the support material 30 and the outside portion 70 of the mullion 2.

[0061] The support member 30 has a fixing portion 31, one mounting portion 32 protruding from the fixing portion 31 to the outside, one groove-shaped mounting portion 33 located on the indoor side of the fixing portion 31, and two left and right projections 35 protruding to the outside. The intervening member 60 is attached to the mounting portion 33 and is sandwiched between the opposing fixing portions 31 and the outdoor side portion 70 of the mullion 2 over the entire left-right direction S of the fixing portion 31, interposing between the fixing portion 31 and the outdoor side portion 70 of the mullion 2. In this state, the fixing portion 31 is fixed to the outdoor side portion 70 of the mullion 2 by the fixing bracket 40. The intervening member 60 seals off the area between the fixing portion 31 and the outdoor side portion 70 of the mullion 2, preventing water from entering the area between the fixing portion 31 and the outdoor side portion 70 of the mullion 2.

[0062] The mounting portion 32 of the support member 30 has two locking portions 34, which protrude from the central portion in the left-right direction S of the fixing portion 31 to the gap 5C between the left and right panel bodies 5. The locking portions 34 are formed on one side of the mounting portion 32 in the left-right direction S and are located in the gap 5C. The protruding wall portion 52 of the trim strip 50 extends from the outdoor side holding portion 51 to the gap 5C, and the protruding wall portion 52 and the two locking portions 53 are located in the gap 5C. On the outdoor side of the outdoor side portion 70 of the mullion 2 and in the gap 5C, the two locking portions 53 are hooked onto the locking portions 34 of the mounting portion 32 from the indoor side and are locked to the locking portions 34 of the mounting portion 32. The trim strip 50 is attached to the mounting portion 32 of the support member 30, and the support member 30 receives and holds the trim strip 50.

[0063] The projections 35 of the support member 30 are located on the indoor side of each of the left and right panel bodies 5, and are positioned opposite to the panel bodies 5 in the indoor-outdoor direction T. The projections 35 are also provided at both ends of the fixing part 31 in the left-right direction S, and protrude toward the panel body 5 from the left and right ends of the fixing part 31 on the indoor side of the panel body 5. On each of the left and right indoor-side holding parts 71 of the mullion 2, the projections 35 are located on the outdoor side of the indoor-side holding part 71 of the mullion 2, and are positioned between the indoor-side holding part 71 of the mullion 2 and the panel body 5 in the indoor-outdoor direction T.

[0064] The two backup members 42 on the left and right are attached to the left and right projections 35 of the support member 30 and are held by the projections 35 of the support member 30. At each of the left and right projections 35 of the support member 30, the backup members 42 are sandwiched between the support member 30 and the panel body 5, and between the mullion 2 and the panel body 5, on the indoor side of the panel body 5. With the backup members 42 sandwiched between the support member 30 and the panel body 5, they are also sandwiched between the indoor holding portion 71 of the outdoor side portion 70 of the mullion 2 and the panel body 5.

[0065] As described above, this embodiment discloses the curtain wall described in (1) to (6) below.

[0066] (1) Panel body and A mullion positioned on the indoor side of the panel body, A retaining strip is provided on the outdoor side of the panel body to hold the panel body between itself and the mullion, A support member fixed to the aforementioned mullion and receiving the aforementioned trim, An intervening member between the support member and the mullion, A curtain wall equipped with this feature. In the curtain wall described in (1), the aesthetic design of the mullions that hold the curtain wall panels on the interior side can be improved.

[0067] (2) In the curtain wall described in (1), The mullion has an outdoor portion located on the indoor side of the panel body, The outdoor side portion of the mullion has a holding portion for holding the panel body and a groove portion for which the support material is placed, The intervening member is a curtain wall interposed between the receiving member and the groove. In the curtain wall described in (2), the aesthetic design of the curtain wall can be enhanced. In addition, the intervening member can protect the groove of the mullion from water, thereby improving the durability of the groove and the mullion.

[0068] (3) In the curtain wall described in (2), The groove portion has left and right groove walls that face each other, The support member is positioned within the groove, extending across the left and right groove walls. The intervening member is a curtain wall interposed between the receiving member and the left and right groove walls. In the curtain wall described in (3), the intervening member can suppress water intrusion into the groove of the mullion. This prevents water from coming into contact with the groove of the mullion, thereby ensuring the durability of the groove of the mullion.

[0069] (4) In a curtain wall described in any of (1) to (3), A fixing bracket for fixing the support member to the vertical, A sealing washer sandwiched between the fixing bracket and the receiving material, A curtain wall equipped with this feature. In the curtain wall described in (4), a sealing washer can be used to seal the gap between the fixing bracket and the support material, preventing water from seeping through the gap between the fixing bracket and the support material to the mullion.

[0070] (5) In a curtain wall described in any of (1) through (4), The curtain wall is made of aluminum alloy, with the aforementioned support member and the aforementioned trim strip. In the curtain wall described in (5), the durability of the support material and the trim can be ensured.

[0071] (6) In a curtain wall described in any of (1) through (5), The aforementioned mullions are made of steel and are part of a curtain wall. In the curtain wall described in (6), it is possible to ensure the strength of the mullions while suppressing an increase in the cost of the mullions. [Explanation of symbols]

[0072] 1...Curtain wall, 2...Mullion, 2A...Hollow section, 2B...Side material, 2C...Spacer material, 2D...Connector, 3...Transom, 4...Opening, 5...Panel body, 5A...Horizontal edge section, 5B...Vertical edge section, 5C...Gap, 10...Building, 11...Exterior wall, 20...Bracket, 21...Cover, 22...Fastening, 30...Support material, 31...Fixing section, 32...Mounting section, 33...Attachment section, 34...Locking section, 35... • Projection, 40... Fixing bracket, 41... Seal washer, 42... Backup material, 43... Sealing material, 44... Backup material, 45... Sealing material, 50... Trim, 51... Outdoor side holding part, 52... Protruding wall part, 53... Locking part, 60... Intervening member, 70... Outdoor side part, 71... Indoor side holding part, 72... Groove part, 73... Groove wall, 74... Groove bottom, R... Up and down direction, S... Left and right direction, T... Indoor and outdoor direction.

Claims

1. Panel body and A mullion positioned on the indoor side of the panel body, A retaining strip is provided on the outdoor side of the panel body to hold the panel body between itself and the mullion, A support member fixed to the aforementioned mullion and receiving the aforementioned trim, The system comprises an intervening member that is interposed between the support member and the mullion, The mullion has an outdoor portion located on the indoor side of the panel body, The outdoor side portion of the mullion has a holding portion for holding the panel body and a groove portion for which the support material is placed, The intervening member is a curtain wall interposed between the receiving member and the groove.

2. In the curtain wall described in claim 1, The groove portion has left and right groove walls that face each other, The support member is positioned within the groove, extending across the left and right groove walls. The intervening member is a curtain wall interposed between the receiving member and the left and right groove walls.

3. In the curtain wall described in claim 1 or 2, A fixing bracket for fixing the support member to the vertical, A sealing washer sandwiched between the fixing bracket and the receiving material, A curtain wall equipped with this feature.

4. In the curtain wall described in claim 1 or 2, The curtain wall is made of aluminum alloy, with the aforementioned support member and the aforementioned trim strip.

5. In the curtain wall described in claim 1 or 2, The aforementioned mullions are made of steel and are part of a curtain wall.

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