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 mounting member 6 fixed to the mullion 2; and a receiving material 7 attached to the mounting member 6. The receiving material 7 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 provided with a panel body and mullions.

Background Art

[0002] In a curtain wall provided with 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 locations spaced apart in the vertical direction and supported by the building frame. Further, when installing a mullion at a location where the vertical interval of the frame is wide, such as a void part of a building, as the interval between the attachment locations of the mullion to the frame increases, 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, there is no unity in the texture of the mullion on the indoor side of the glass panel, 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

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to improve the aesthetic design of mullions that hold the panel body on the interior side of a curtain wall panel body. [Means for solving the problem]

[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 mounting member fixed to the aforementioned mullion, A receiving member attached to the aforementioned mounting member to receive the aforementioned trim, Equipped with, The mullion has an exterior surface portion that holds the panel body and to which the mounting material is fixed. 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 longitudinal cross-sectional view of the curtain wall of the first embodiment, cut along line XX in Figure 3. [Figure 5] This is a perspective view showing the support member of the first embodiment. [Figure 6] This is a perspective view showing the mullion, mounting member, and support member of the first embodiment. [Figure 7] This is a cross-sectional view of the curtain wall of the second embodiment. [Figure 8] This is a perspective view showing the support member of the second embodiment. [Figure 9] This is a perspective view showing the mullion, mounting material, and support material of the second embodiment. [Modes for carrying out the invention]

[0009] One 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 structure used on the exterior wall of a building, and is installed between the interior (indoors) and exterior (outdoors) of the building. Below, several embodiments of a knockdown-type curtain wall will be described as examples of curtain walls.

[0010] (First Embodiment) Figure 1 is a front view showing the curtain wall 1 of the first embodiment, and schematically shows the general configuration of the curtain wall 1, with some details of its structure omitted. As shown in the figure, the curtain wall 1 is installed on the exterior wall 11 of the building 10, forming the exterior wall 11 of the building 10. The curtain wall 1 is also positioned on the exterior side of the building's frame (not shown) and is attached to the building's frame.

[0011] When viewing the curtain wall 1 installed on building 10 from the front, the up-and-down direction is the vertical direction R, and the left-and-right direction is the left-and-right direction S. In Figure 1, the up-and-down direction R is the vertical direction, and the left-and-right direction S is the horizontal direction. The indoor-outdoor direction is the indoor-outdoor direction (indoor / outdoor direction) of the curtain wall 1 installed on building 10. Also, the indoor-outdoor direction is the front-and-back direction when viewing the curtain wall 1 installed on building 10 from the front, and in Figure 1, it is the horizontal direction perpendicular to the left-and-right direction S. Thus, the direction related to the curtain wall 1 is specified by the direction when it is installed on building 10. Furthermore, the indoor side and outdoor side of the curtain wall 1 refer to the indoor side and outdoor side when it is installed on building 10.

[0012] The curtain wall 1 includes a plurality of mullions 2 attached to the building structure of the building 10, a plurality of transoms 3 attached to the mullions 2, a plurality of openings 4 formed by the mullions 2 and the transoms 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 mullion 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 mullions 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 transom 3 is a horizontal member extending in the horizontal direction S (lateral direction) and is disposed between each pair of adjacent mullions 2 in the horizontal direction S and spans across the left and right mullions 2. Between the left and right adjacent mullions 2, the transom 3 is arranged at intervals in the vertical direction R and is attached to the left and right mullions 2. The plurality of transoms 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 mullions 2 and the plurality of transoms 3 are combined in a grid-like (frame-like) manner to form the plurality of square openings 4. The plurality of openings 4 are arranged side by side in the horizontal direction S with the mullion 2 sandwiched therebetween, and are arranged side by side in the vertical direction R with the transom 3 sandwiched therebetween. Also, the opening 4 is formed on both the left and right sides of the mullion 2 in the horizontal direction S and is formed on both the upper and lower sides of the transom 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 mullion 2 and the transom 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 mullion 2 in the horizontal direction S and is disposed on both the upper and lower sides of the transom 3 in the vertical direction R.

[0015] FIG. 2 is a longitudinal sectional view of the curtain wall 1 of the first embodiment, showing the curtain wall 1 cut along a plane including the vertical direction R and the indoor-outdoor direction T at three locations without joints. As shown in the drawing, the curtain wall 1 includes brackets 20 fixed to the left and right side portions of the mullion 2, a cover 21 covering the joints 3 and the brackets 20, and a pressing edge 22 attached to the joints 3. Both ends of the joints 3 in the longitudinal direction (left-right direction S) are fixed to the brackets 20 respectively, and are attached to the side portion of the mullion 2 via the brackets 20. The cover 21 is located on the indoor side of the panel body 5 and houses the joints 3 and the brackets 20.

[0016] The panel body 5 has edges (horizontal edges 5A) extending in the left-right direction S and is arranged side by side in the vertical direction R. The joints 3 are arranged on the indoor side of the upper and lower panel bodies 5 (here, the horizontal edges 5A) adjacent to each other in the vertical direction R, and hold the upper and lower panel bodies 5 on the indoor side of the panel body 5. The pressing edge 22 is a horizontal pressing edge extending in the left-right direction S, is located on the outdoor side of the joints 3 and the horizontal edges 5A of the panel body 5, and is arranged along the joints 3 and the horizontal edges 5A of the panel body 5. Also, the pressing edge 22 is arranged on the outdoor side of the upper and lower panel bodies 5 (horizontal edges 5A) and holds the upper and lower panel bodies 5 between it and the joints 3. The upper and lower panel bodies 5 are arranged between the joints 3 and the pressing edge 22 in the indoor-outdoor direction T and are held between the joints 3 and the pressing edge 22.

[0017] FIG. 3 is a cross-sectional view of the curtain wall 1 of the first embodiment, showing the curtain wall 1 cut along a plane including the left-right direction S and the indoor-outdoor direction T at the location of the mullion 2. 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 mounting member 6 fixed to the mullion 2, fixing hardware 30 such as screws and bolts for fixing the mounting member 6, a support member 7 attached to the mounting member 6, two backup members 40 on the left and right attached to the support member 7, and a glazing strip 50 attached to the support member 7. The support member 7 and the glazing strip 50 are made of aluminum alloy. The mounting member 6, support member 7, backup member 40, and glazing strip 50 are located on the exterior side of the mullion 2. The support member 7, backup member 40, and glazing strip 50 extend in the longitudinal direction (up and down direction R) of the mullion 2 and are arranged along the mullion 2.

[0019] The mounting member 6 has a connecting portion 6A located on the outdoor side of the mullion 2 and is located on the indoor side of the panel body 5. On the indoor side of the panel body 5, the mounting member 6 is fixed to the mullion 2 by two fixing brackets 30, and the receiving member 7 is connected to the connecting portion 6A of the mounting member 6. The fixing brackets 30 are inserted from the outdoor side through the insertion holes of the mounting member 6 and screwed into the screw holes of the mullion 2. In this way, the fixing brackets 30 are fixed to the screw holes of the mullion 2 and attached to the mullion 2. On the indoor side of the panel body 5, the mounting member 6 receives and holds the receiving member 7.

[0020] The support member 7 has an engaging portion 7A located on the outdoor side of the mullion 2. The engaging portion 7A of the support member 7 engages with the connecting portion 6A of the mounting member 6 and is connected to the connecting portion 6A. The support member 7 is connected to the connecting portion 6A by the engaging portion 7A and is attached to the connecting portion 6A and the mounting member 6. The support member 7 also receives and holds the trim 50 on the outdoor side of the mullion 2 and at the location between the left and right panel bodies 5 (gap 5C). The trim 50 is connected to the mullion 2 via the support member 7 and the mounting member 6.

[0021] The trim strip 50 is a vertical trim strip, which is locked to the support member 7 and attached to the support member 7. The trim strip 50 is also positioned from the support member 7 to the exterior side of the panel body 5, located on the exterior side of the mullion 2, the support member 7, and the vertical edge portion 5B of the panel body 5, and is positioned along the mullion 2, the support member 7, 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 exterior surface portion 2A that is positioned facing outwards. The exterior surface portion 2A of the mullion 2 is the end face located on the exterior side of the mullion 2 and is located on the interior side of the panel body 5. The exterior surface portion 2A of the mullion 2 is formed in a planar shape and is positioned along the left-right direction S. The left and right panel bodies 5, mounting member 6, support member 7, backup member 40, and trim 50 are located on the exterior side of the exterior surface portion 2A of the mullion 2. The exterior surface portion 2A of the mullion 2 is positioned opposite the left and right panel bodies 5 in the interior-exterior direction T and holds the left and right panel bodies 5. The mounting member 6 is fixed to the exterior surface portion 2A of the mullion 2. The support member 7 is connected to the exterior surface portion 2A of the mullion 2 via the mounting member 6, and the trim 50 holds the panel body 5 between itself and the exterior surface portion 2A of the mullion 2.

[0023] The exterior surface portion 2A of the mullion 2 has two holding portions (indoor holding portions 2B) on the left and right sides that hold the left and right panel bodies 5 on the indoor side, and an arrangement portion 2C where the mounting material 6 and the receiving material 7 are arranged. The left and right indoor holding portions 2B and the arrangement portion 2C are provided in parallel on the exterior surface portion 2A of the mullion 2, each extending in the longitudinal direction of the mullion 2 and positioned toward the outdoor side. The indoor holding portions 2B are opposing portions provided on a part of the exterior surface portion 2A of the mullion 2, each located on the indoor side of the panel body 5, and positioned opposite to the panel body 5 in the indoor-outdoor direction T. The indoor holding portions 2B are provided on the left and right edge sides of the exterior surface portion 2A of the mullion 2 and are located on both sides in the left-right direction S of the arrangement portion 2C. The left and right panel bodies 5 are held between the indoor holding portions 2B of the mullion 2 and the trim 50.

[0024] The left and right indoor-side holding portions 2B of the mullion 2 are spaced apart from each other in the left-right direction S, with the placement portion 2C in between, and each holds the left and right panel bodies 5. The placement portion 2C is provided on a part of the outdoor surface portion 2A of the mullion 2 (the portion other than the indoor-side holding portion 2B) and is located on the indoor side of the gap 5C between the left and right panel bodies 5. The placement portion 2C is also provided in the central part of the outdoor surface portion 2A of the mullion 2 in the left-right direction S, and in the portion between the left and right indoor-side holding portions 2B (intermediate part) of the outdoor surface portion 2A of the mullion 2. The placement portion 2C is located between the left and right indoor-side holding portions 2B in the left-right direction S and is adjacent to the left and right indoor-side holding portions 2B.

[0025] The mounting members 6 and support members 7 are located on the outdoor side of the arrangement section 2C on the outdoor surface portion 2A of the mullion 2. The mounting members 6 are provided at multiple locations along the longitudinal direction of the mullion 2, and the multiple mounting members 6 are spaced apart from each other along the longitudinal direction of the mullion 2. On the outdoor side of the arrangement section 2C, the multiple mounting members 6 are fixed to the arrangement section 2C, and the support member 7 is attached to the multiple mounting members 6 and connected to the arrangement section 2C via the mounting members 6. The mounting members 6 support and hold the support member 7 in a state where the support member 7 protrudes outward from the arrangement section 2C on the outdoor surface portion 2A and from the mullion 2. The support member 7 is located on the outdoor side of the arrangement section 2C and the mounting members 6, and covers the arrangement section 2C and the mounting members 6 from the outdoor side.

[0026] Figure 4 is a longitudinal section of the curtain wall 1 of the first embodiment, cut along line XX in Figure 3, showing the curtain wall 1 cut at the location of one mounting member 6. Figure 5 is a perspective view showing the support member 7 of the first embodiment, with Figures 5A and 5B showing parts of the support member 7 in the longitudinal direction (up and down direction R) from different directions. Figure 6 is a perspective view showing the mullion 2, mounting member 6, and support member 7 of the first embodiment, showing a part of the longitudinal direction of the mullion 2, one mounting member 6, and a part of the longitudinal direction of the support member 7. In Figure 6, the support member 7 attached to the mounting member 6 is indicated by a dashed line, and the mullion 2 and mounting member 6 are shown through the support member 7.

[0027] As shown in the figure, the mounting member 6 is a hook member that protrudes upward, and the receiving member 7 is attached to the mounting member 6 by hooking it from above. The mounting member 6 also has a plate-shaped fixing part 60 that is fixed to the mullion 2, and a hook part 61 located above the fixing part 60. The fixing part 60 of the mounting member 6 is in close contact with the mullion 2 (here, the arrangement part 2C of the exterior surface part 2A) and is fixed to the mullion 2 by the fixing fitting 30. The hook part 61 of the mounting member 6 has two projections 62 and 63 (first projection 62 and second projection 63) that are formed continuously with each other, and the first projection 62 and the second projection 63 form a hook shape that protrudes upward from the fixing part 60.

[0028] The first projection 62 of the hook portion 61 is connected to the upper end of the fixing portion 60 and protrudes outward from the fixing portion 60 and the mullion 2 (arrangement portion 2C of the outdoor surface portion 2A). The second projection 63 of the hook portion 61 is connected to the outdoor portion of the first projection 62 and protrudes upward from the first projection 62 at a position spaced outward from the mullion 2. The second projection 63 is positioned spaced outward from the mullion 2 throughout its entire length, forming a gap 64 between it and the mullion 2. The gap 64 is formed above the first projection 62, between the mullion 2 and the plate-shaped second projection 63, and is open upward and to both sides in the left-right direction S. The first projection 62 is located below the gap 64 and closes the gap 64 below.

[0029] The connecting portion 6A of the mounting member 6 is a hook portion 61 that protrudes upward, and the engaging portion 7A of the receiving member 7 is hooked onto the hook portion 61, which is the connecting portion 6A, from above and engages with it. The receiving member 7 also has a groove portion 70 for accommodating the mounting member 6, a mounting portion 71 that protrudes from the groove portion 70 toward the outside, and two mounting portions 72 on the left and right. The groove portion 70 is formed in a concave shape on the indoor side of the receiving member 7, extends in the longitudinal direction of the receiving member 7, and is positioned toward the indoor side. The groove portion 70 is also open toward the indoor side and is positioned opposite the mullion 2 (outdoor surface portion 2A) in the indoor-outdoor direction T.

[0030] The groove 70 of the support member 7 has an opening 73 that opens toward the interior, two projections 74 on the left and right that project in the left-right direction S, and notches 75 formed on each of the left and right projections 74. The opening 73 and projections 74 of the groove 70 extend in the longitudinal direction of the support member 7. The projections 74 are provided on the left and right edges of the groove 70 on the interior side and are located on both sides of the opening 73 of the groove 70 in the left-right direction S. The left and right projections 74 project toward each other in the left-right direction S and are arranged facing each other, with the opening 73 of the groove 70 in between.

[0031] The notch 75 is a cavity formed by cutting out the projection 74, and penetrates the projection 74 in the indoor-outdoor direction T, continuing to the opening 73 of the groove 70. In addition, the notch 75 is provided at multiple locations in the longitudinal direction of the support member 7, and the multiple notches 75 are provided on the projection 74 at intervals and spaced apart from each other in the longitudinal direction of the support member 7. The notches 75 are formed to align with the positions of the left and right projections 74 in the longitudinal direction of the support member 7, and the left and right notches 75 are provided at opposing positions in the left-right direction S.

[0032] When attaching the support member 7 to the mounting member 6, the support member 7 is moved inward toward the interior of the room towards the mullion 2 and the mounting member 6. At this time, the left and right notches 75 of the support member 7 are moved inward toward the interior of the room towards the mounting member 6. As a result, the mounting member 6 is positioned in the groove 70 from the interior side, passing through the left and right notches 75 and the opening 73 between the left and right notches 75. The fixing portion 60 of the mounting member 6 is positioned in the left and right notches 75 and the opening 73 between the left and right notches 75. In this state, when the support member 7 is moved downward, the left and right projections 74 are placed on the hook portion 61 of the mounting member 6 above the left and right notches 75.

[0033] Thus, the receiving member 7 has a mounting portion 76 that is placed on the hook portion 61 of the mounting member 6. The mounting portion 76 is located above the notches 75 in the left and right projections 74 and is adjacent to the notches 75, and the hook portion 61 of the mounting member 6 receives the mounting portion 76 from above. In addition, the engaging portion 7A of the receiving member 7 is a groove portion 70 that includes the mounting portion 76 and has left and right mounting portions 76. The mounting portion 76 of the engaging portion 7A is received from above in the gap 64 between the mullion 2 and the second projection 63 of the hook portion 61 and is placed on the first projection 62 of the hook portion 61 from above.

[0034] Within the groove 70, the first projection 62 of the hook portion 61 is located in the left and right notches 75 and the opening 73 between the left and right notches 75, which are located below the left and right mounting portions 76, and supports the left and right mounting portions 76 from below. The second projection 63 of the hook portion 61 is located on the outdoor side of the left and right mounting portions 76 and supports the left and right mounting portions 76 from the outdoor side. The mounting portion 76 of the engaging portion 7A is positioned from above in the gap 64 between the mullion 2 and the second projection 63 and is fitted into the gap 64. As a result, the mounting portion 76 engages with the hook portion 61 of the mounting material 6 while being placed on the hook portion 61 from above.

[0035] The hook portion 61 and connecting portion 6A of the mounting material 6 are fitted into the groove portion 70 of the engaging portion 7A. As a result, the groove portion 70 and engaging portion 7A of the receiving material 7 engage with and connect the hook portion 61 and connecting portion 6A of the mounting material 6. Here, the groove portion 70, including the mounting portion 76, clamps the fixing portion 60 of the mounting material 6 and the first projection 62 of the hook portion 61 in the left-right direction S, and the mounting portion 76 abuts the second projection 63 of the hook portion 61 from the indoor side, clamping the second projection 63 in the left-right direction S. The fixing portion 60 of the mounting material 6 is fitted into the groove portion 70 at the locations of the left and right notches 75. In addition, the first projection 62 of the hook portion 61 is fitted into the groove portion 70 at the locations of the left and right notches 75 and the outdoor side of the left and right notches 75. The second projection 63 of the hook portion 61 is fitted into the groove portion 70 at the outdoor side of the left and right mounting portions 76.

[0036] The mounting member 6 supports the mounting portion 76 and engaging portion 7A of the receiving member 7 from below with the first projection 62 of the hook portion 61, thereby restricting the downward movement of the mounting portion 76 and engaging portion 7A of the receiving member 7. Furthermore, the mounting member 6 restricts the movement of the mounting portion 76 and engaging portion 7A of the receiving member 7 in the indoor / outdoor direction T with the second projection 63 of the hook portion 61, and restricts the movement of the groove portion 70 and engaging portion 7A of the receiving member 7 in the left-right direction S with the first projection 62 and the second projection 63 of the hook portion 61. In this way, the mounting member 6, with the hook portion 61 which is the connecting portion 6A, restricts the movement of the engaging portion 7A and the receiving member 7 in the left-right direction S, the indoor / outdoor direction T, and downward, thereby holding the engaging portion 7A and the receiving member 7.

[0037] The mounting portion 71 of the support member 7 has two locking portions 77 for locking the trim 50, and protrudes from the center of the groove portion 70 in the left-right direction S to the gap 5C between the left and right panel bodies 5 (see Figure 3). The two locking portions 77 are hooks that protrude toward the interior side and are formed spaced apart from each other in the interior-outterior direction T. The locking portions 77 are formed on one side of the mounting portion 71 in the left-right direction S, and the mounting portion 71 and the locking portions 77 are positioned in the gap 5C.

[0038] The left and right mounting portions 72 of the support member 7 are the lateral portions on both sides in the left-right direction S of the groove portion 70 and protrude toward the outside. The mounting portions 72 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 mounting portions 72 are provided on the indoor side of the support member 7 and are located on the indoor side of the panel body 5 and on the outdoor side of the mullion 2 and the outdoor surface portion 2A of the mullion 2 (left and right indoor holding portions 2B). On each of the left and right indoor holding portions 2B of the mullion 2, the mounting portion 72 is positioned between the indoor holding portion 2B of the mullion 2 and the panel body 5 in the indoor-outdoor direction T and protrudes toward the panel body 5.

[0039] The backup material 40 is a fixing seal (gasket) used to fix the panel body 5, and is watertight and airtight. The left and right backup materials 40 are attached to the left and right mounting portions 72 of the support material 7 and are held by the mounting portions 72 of the support material 7. At each of the left and right mounting portions 72 of the support material 7, the backup material 40 is sandwiched between the mullion 2 and the panel body 5, and between the support material 7 and the panel body 5, on the indoor side of the panel body 5. With the backup material 40 sandwiched between the mounting portion 72 of the support material 7 and the panel body 5, it is sandwiched between the indoor holding portion 2B of the outdoor surface portion 2A of the mullion 2 and the panel body 5.

[0040] 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, and the two locking parts 53 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 the gap 5C between the left and right panel bodies 5, and the protruding wall part 52 and the two locking parts 53 are positioned in the gap 5C.

[0041] On the outdoor side of the outdoor surface portion 2A of the mullion 2 and in the gap 5C, the two locking portions 53 of the trim strip 50 are hooked from the indoor side onto the locking portions 77 of the mounting portion 71, respectively, and are locked to the locking portions 77 of the mounting portion 71. The trim strip 50 is locked to the locking portions 77 by the locking portions 53 and attached to the locking portions 77 and mounting portion 71 of the receiving member 7. The receiving member 7 receives and holds the trim strip 50.

[0042] 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 outdoor surface portion 2A of the mullion 2 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 in the indoor-outdoor direction T between the indoor-side holding portion 2B of the mullion 2 and the outdoor-side holding portion 51 of the trim 50, respectively, and are held between the indoor-side holding portion 2B 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 2B, and the trim 50 holds the panel body 5 on the outdoor side with its outdoor-side holding portion 51.

[0043] A backup material 40 and a sealing material 41 are provided between the indoor-side retaining portion 2B of the mullion 2 and the panel body 5. The sealing material 41 is supported by the backup material 40 and fills the space between the indoor-side retaining portion 2B of the mullion 2 and the panel body 5. The sealing material 41 seals the area between the indoor-side retaining portion 2B of the mullion 2 and the panel body 5. In the left-right direction S, the backup material 40 is located on the side of the gap 5C relative to the sealing material 41, and the sealing material 41 is located on the opposite side of the gap 5C relative to the backup material 40.

[0044] A backup material 42 and a sealing material 43 are provided between the outdoor-side retaining portion 51 of the trim 50 and the panel body 5. The sealing material 43 is supported by the backup material 42 and fills the space between the outdoor-side retaining portion 51 of the trim 50 and the panel body 5. The sealing material 43 prevents water from entering 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 backup material 42 is located on the side of the gap 5C relative to the sealing material 43, and the sealing material 43 is located on the opposite side of the gap 5C relative to the backup material 42.

[0045] In the curtain wall 1 of the first embodiment described above, the trim 50 is supported by the support member 7, 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 7 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 support member 7 can also be easily attached to the mullion 2 via the mounting member 6 by attaching the support member 7 to the mounting member 6.

[0046] On the outdoor side of the mullion 2, the engaging portion 7A of the receiving member 7 is connected to the connecting portion 6A of the mounting member 6, allowing the receiving member 7 to be easily attached to the mounting member 6. Furthermore, by placing the mounting portion 76 of the engaging portion 7A onto the hook portion 61, which is the connecting portion 6A, the engaging portion 7A of the receiving member 7 can be stably connected to the connecting portion 6A of the mounting member 6. The outdoor surface portion 2A of the mullion 2 holds the panel body 5, and the receiving member 7 is attached to the mounting member 6 fixed to the outdoor surface portion 2A of the mullion 2. This suppresses the exposure of the mounting member 6 and the receiving member 7 to the indoor side, thereby enhancing the aesthetic design of the curtain wall 1.

[0047] The backup material 40 prevents water from entering the area between the support material 7 and the panel body 5, and between the mullion 2 and the panel body 5, thereby preventing water from entering the area between the support material 7 and the panel body 5, and between the mullion 2 and the panel body 5. This ensures watertightness in the area between the support material 7 and the panel body 5, and between the mullion 2 and the panel body 5, protecting the mullion 2 from rainwater and other water. As a result, corrosion of the mullion 2 due to water is suppressed, and the durability of the mullion 2 can be improved.

[0048] By making the support members 7 and trim 50, which are positioned on the exterior side of the mullion 2, out of aluminum alloy, the weather resistance and durability of the support members 7 and trim 50 can be ensured. By making the mullion 2 out of 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 of a material other than steel.

[0049] Furthermore, the support member 7 and the trim strip 50 are not limited to being made of various aluminum alloys, but may be made of materials other than aluminum alloys (e.g., stainless steel). Also, the mullion 2 is not limited to being made of various steels (e.g., carbon steel, special steel, stainless steel), but may be made of materials other than steel (e.g., aluminum alloy, wood). The shape of the mullion 2 may be other than a solid shape (e.g., a hollow shape). The mullion 2 may be formed by combining multiple members (e.g., flat bars made of steel). The dimension of the mullion 2 in the indoor-outdoor direction T may be the same as the dimension of the mullion 2 in the left-right direction S, or it may be smaller than the dimension of the mullion 2 in the left-right direction S.

[0050] 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 (e.g., curved surfaces, polygonal surfaces). Furthermore, the outdoor surface portion 2A of the mullion 2 is not limited to a planar shape, but may also have other shapes (e.g., curved surfaces, polygonal surfaces).

[0051] (Second Embodiment) Next, the curtain wall 1 of the second embodiment will be described. In the second embodiment, the same matters as in the first embodiment will be omitted, and the differences from the first embodiment will be mainly described. Also, with respect to the second embodiment, the same names as in the first embodiment will be used for the configurations corresponding to the configurations of the first embodiment.

[0052] Figure 7 is a cross-sectional view of the curtain wall 1 of the second embodiment, and, similar to Figure 3, shows the curtain wall 1 cut at the mullion 2. Figure 8 is a perspective view showing the support member 7 of the second embodiment, showing a portion of the support member 7 in the longitudinal direction. Figure 9 is a perspective view showing the mullion 2, mounting member 6, and support member 7 of the second embodiment, and, similar to Figure 6, shows a portion of the mullion 2 in the longitudinal direction, the two mounting members 6, and a portion of the support member 7 in the longitudinal direction.

[0053] As shown in the figure, in the curtain wall 1 of the second embodiment, the mounting member 6 and the receiving member 7 differ from the mounting member 6 and the receiving member 7 of the first embodiment, respectively. The mounting member 6 is a stepped bolt 65 fixed to the mullion 2. The stepped bolt 65 has a threaded portion 66 fixed to the mullion 2, a head 67 located on the outdoor side of the threaded portion 66, and a stepped portion 68 located between the threaded portion 66 and the head 67. The threaded portion 66 of the stepped bolt 65 is screwed into the threaded hole of the outdoor surface portion 2A of the mullion 2 from the outdoor side. In this way, the threaded portion 66 is fixed to the threaded hole of the outdoor surface portion 2A of the mullion 2, and the stepped bolt 65 is fixed to the outdoor surface portion 2A of the mullion 2.

[0054] The connecting portion 6A of the mounting material 6 is an overhang portion 69 provided on the stepped bolt 65, and the overhang portion 69 is the head 67 and stepped portion 68 of the stepped bolt 65. The overhang portion 69 and the head 67 and stepped portion 68 of the stepped bolt 65 protrude outward from the mullion 2 (outdoor surface portion 2A) and are located on the outdoor side of the mullion 2. The head 67 is spaced outward from the threaded portion 66 and the mullion 2, with the stepped portion 68 sandwiched between the threaded portion 66 and the mullion 2. The stepped portion 68 is a smaller diameter portion than the head 67 and is a disc-shaped portion, located between the head 67 and the mullion 2, forming a recess between the head 67 and the mullion 2.

[0055] Unlike the groove 70 of the receiving member 7 in the first embodiment, the groove 70 of the receiving member 7 does not have notches 75 on the left and right projections 74, and the left and right projections 74 extend continuously in the longitudinal direction of the receiving member 7 without being notched by the notches 75. Furthermore, the engaging portion 7A of the receiving member 7 is a fitting portion 78 into which the protruding portion 69 (the head 67 and stepped portion 68 of the stepped bolt 65) is fitted, and the fitting portion 78 is a groove 70 including the left and right projections 74 of the receiving member 7.

[0056] When attaching the support member 7 to the mounting member 6, the support member 7 is moved along the exterior surface 2A of the mullion 2 in the longitudinal direction of the mullion 2. At the longitudinal end of the support member 7, the head 67 and stepped portion 68 of the stepped bolt 65, which is the overhang portion 69, are inserted into the groove portion 70 of the fitting portion 78. The heads 67 and stepped portions 68 of the multiple stepped bolts 65 are received sequentially in the groove portion 70 and slide along the groove portion 70.

[0057] Within the groove 70 of the fitting portion 78, the head 67 of the stepped bolt 65 is positioned on the outdoor side of the left and right projections 74 and is fitted into the interior of the groove 70 and the fitting portion 78. The stepped portion 68 of the stepped bolt 65 is positioned between the left and right projections 74 of the groove 70 and is fitted into the opening 73 between the left and right projections 74 of the groove 70 and the fitting portion 78. As a result, the protruding portion 69 (head 67 and stepped portion 68 of the stepped bolt 65) is fitted into the fitting portion 78 of the receiving member 7, and the fitting portion 78 of the receiving member 7 engages with and connects the protruding portion 69. The left and right projections 74 of the groove 70 are positioned on the indoor side of the head 67 and are positioned between the head 67 and the mullion 2 (in the recess formed by the stepped portion 68), and abut against the head 67 from the indoor side.

[0058] The mounting member 6 restricts the movement of the groove 70 and engaging portion 7A (fitting portion 78) of the receiving member 7 in the indoor / outdoor direction T by the head 67 of the stepped bolt 65, and restricts the movement of the groove 70 and engaging portion 7A of the receiving member 7 in the left / right direction S by the head 67 and stepped portion 68 of the stepped bolt 65. In this way, the mounting member 6 holds the engaging portion 7A and the receiving member 7 by restricting the movement of the engaging portion 7A and the receiving member 7 in the left / right direction S and the indoor / outdoor direction T by the overhanging portion 69 which is the connecting portion 6A. However, the head 67 and stepped portion 68 of the stepped bolt 65 are movable in the vertical direction R within the groove 70 of the receiving member 7, and the mounting member 6 does not restrict the movement of the engaging portion 7A and the receiving member 7 in the vertical direction R by the overhanging portion 69. Therefore, the receiving member 7 is fixed to the mullion 2 at a position different from the overhanging portion 69 by fixing hardware such as screws and bolts (not shown).

[0059] In the curtain wall 1 of the second embodiment, the engaging portion 7A of the receiving member 7 can be easily connected to the connecting portion 6A of the mounting member 6 by fitting the protruding portion 69, which is the connecting portion 6A, into the fitting portion 78, which is the engaging portion 7A. Furthermore, since the protruding portion 69 is the head 67 and stepped portion 68 of the stepped bolt 65, the structure of the mounting member 6 having the protruding portion 69 is simplified, and the mounting member 6 can be easily fixed to the mullion 2.

[0060] The stepped bolt 65 may have a structure divided into two members, for example, a member having a head 67 and a stepped portion 68 (a stepped member), and a fixing fitting (such as a countersunk bolt) for fixing the stepped member to the mullion 2. Also, the protruding portion 69 is not limited to the head 67 and the stepped portion 68 of the stepped bolt 65, but may be another protruding portion that fits into the fitting portion 78. The present invention can also be implemented using other fixing fittings such as screws and bolts other than the stepped bolt 65.

[0061] As described above, this embodiment discloses the curtain wall described in (1) to (9) below.

[0062] (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 mounting member fixed to the aforementioned mullion, A receiving member attached to the aforementioned mounting member to receive the aforementioned trim, 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.

[0063] (2) In the curtain wall described in (1), The mounting material has a connecting portion located on the outdoor side of the mullion, The receiving member is a curtain wall having an engaging portion that engages with and connects to the connecting portion. In the curtain wall described in (2), the receiving member can be easily attached to the mounting member by connecting the engaging portion of the receiving member to the connecting portion of the mounting member on the exterior side of the mullion.

[0064] (3) In the curtain wall described in (2), The aforementioned connecting portion is a hook portion that protrudes upward, The engagement portion is a curtain wall having a mounting portion that is placed on and engages with the hook portion. In the curtain wall described in (3), the engaging portion of the receiving member can be stably connected to the connecting portion of the mounting member by placing the mounting portion of the engaging portion on the hook portion, which is the connecting portion.

[0065] (4) In the curtain wall described in (2), The aforementioned connecting portion is an overhang that extends outward from the mullion, The engagement portion is a curtain wall which is a fitting portion into which the protruding portion is fitted and engages with the protruding portion. In the curtain wall described in (4), the engaging portion of the receiving member can be easily connected to the connecting portion of the mounting member by fitting the protruding portion, which is the connecting portion, into the fitting portion, which is the engaging portion.

[0066] (5) In the curtain wall described in (4), The mounting material is a stepped bolt having a stepped portion between the threaded portion and the head, which is fixed to the mullion. The protruding portion is a curtain wall which is the head and stepped portion of the stepped bolt. In the curtain wall described in (5), the structure of the mounting member having an overhang is simplified, and the mounting member can be easily fixed to the mullion.

[0067] (6) In a curtain wall described in any of (1) through (5), The mullion is a curtain wall having an exterior surface portion that holds the panel body and to which the mounting material is fixed. In the curtain wall described in (6), the exposure of the mounting material and support material to the interior side can be suppressed, thereby enhancing the aesthetic appeal of the curtain wall.

[0068] (7) In a curtain wall described in any of (1) through (6), A curtain wall comprising a backup material sandwiched between the mullion and the panel body, and between the support material and the panel body. In the curtain wall described in (7), the backup material can be used to stop water from entering the area between the support material and the panel body to the area between the mullion and the panel body, thereby preventing water from entering the area between the support material and the panel body, and the area between the mullion and the panel body.

[0069] (8) In a curtain wall described in any of (1) through (7), The curtain wall is made of aluminum alloy, with the aforementioned support member and the aforementioned trim strip. In the curtain wall described in (8), the durability of the support material and the trim can be ensured.

[0070] (9) In a curtain wall described in any of (1) through (8), The aforementioned mullions are made of steel and are part of a curtain wall. In the curtain wall described in (9), it is possible to ensure the strength of the mullions while suppressing the increase in the cost of the mullions. [Explanation of Symbols]

[0071] 1...Curtain wall, 2...Mullion, 2A...Exterior surface, 2B...Interior support section, 2C...Placement section, 3...Transom, 4...Opening, 5...Panel body, 5A...Horizontal edge, 5B...Vertical edge, 5C...Gap, 6...Mounting material, 6A...Connecting section, 7...Support material, 7A...Engaging section, 10...Building, 11...Exterior wall, 20...Bracket, 21...Cover, 22...Fastening, 30...Fixing hardware, 40...Backup material, 41...Sealing material, 42...Backup material, 43...Sealing material, 50 ...Fastener, 51...Outdoor side retaining part, 52...Protruding wall part, 53...Locking part, 60...Fixing part, 61...Hook part, 62...First projection, 63...Second projection, 64...Gap, 65...Stepped bolt (fixing bracket), 66...Threaded part, 67...Head, 68...Stepped part, 69...Protruding part, 70...Groove part, 71...Mounting part, 72...Attachment part, 73...Opening, 74...Protruding piece, 75...Notch part, 76...Placement part, 77...Locking part, 78...Fitting part, 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 mounting member fixed to the aforementioned mullion, The mounting member is attached to the aforementioned mounting member and comprises a receiving member that receives the aforementioned trim, The mullion is a curtain wall having an exterior surface portion that holds the panel body and to which the mounting material is fixed.

2. In the curtain wall described in claim 1, The mounting material has a connecting portion located on the outdoor side of the mullion, The receiving member is a curtain wall having an engaging portion that engages with and connects to the connecting portion.

3. In the curtain wall described in claim 2, The aforementioned connecting portion is a hook portion that protrudes upward, The engagement portion is a curtain wall having a mounting portion that is placed on and engages with the hook portion.

4. In the curtain wall described in claim 2, The aforementioned connecting portion is an overhang that extends outward from the mullion, The engagement portion is a curtain wall which is a fitting portion into which the protruding portion is fitted and engages with the protruding portion.

5. In the curtain wall described in claim 4, The mounting material is a stepped bolt having a stepped portion between the threaded portion and the head, which is fixed to the mullion. The protruding portion is a curtain wall which is the head and stepped portion of the stepped bolt.

6. In a curtain wall according to any one of claims 1 to 5, A curtain wall comprising a backup material sandwiched between the mullion and the panel body, and between the support material and the panel body.

7. In a curtain wall according to any one of claims 1 to 5, The curtain wall is made of aluminum alloy, with the aforementioned support member and the aforementioned trim strip.

8. In a curtain wall according to any one of claims 1 to 5, The aforementioned mullions are made of steel and are part of a curtain wall.

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