Curtain Wall

Abstract

To easily drain dew condensation water generated on the surfaces of vertical frames opposed to each other of adjacent curtain wall units to a lower frame on the indoor side of a curtain wall.SOLUTION: A curtain wall unit 2 is provided with a frame body 4 having an upper frame, a lower frame 6, and a pair of vertical frames 7 and 8, and is installed side by side in the left-right direction R. A water-receiving component 20 is provided from one vertical frame 7 to the other vertical frame 8 at a lower portion on the indoor side of the vertical frames 7 and 8 facing each other of the adjacent curtain wall units 2, and receives dew condensation water. The water-receiving component 20 has a guiding part 40 extending from the indoor side aspect faces 7F and 8F of the vertical frames 7 and 8 opposed to each other to the lower frame 6 and guiding the dew condensation water to the lower frame 6.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a curtain wall in which curtain wall units are arranged side by side in the left-right direction. [Background technology]

[0002] In curtain wall units adjacent to each other in the left-right direction of the curtain wall, the vertical frames of each frame are arranged facing each other on the left and right, and the vertical frames are combined. On the indoor side of such a curtain wall, condensation may occur on the surface of the vertical frame, and the condensed water may run down the surface of the vertical frame. When the condensed water runs down onto the bottom frame of the frame, it can be treated within the curtain wall. In contrast, condensation water that occurs on the visible surface of the vertical frame on the indoor side runs down the visible surface of the vertical frame toward, for example, the peri-cover, which is an interior material.

[0003] When a sealant is provided between the peri cover and the facing surface of the vertical frame, condensation water flows from the facing surface of the vertical frame onto the peri cover and accumulates on top of the peri cover. However, in this case, the condensation water cannot be treated within the curtain wall, and must be dealt with outside the curtain wall. In addition, at the curtain wall construction site, an irregular sealant must be applied between the peri cover and the facing surface of the vertical frame, which increases the work required for curtain wall construction.

[0004] Regarding the treatment of condensation water, the lowest condensation discharge device in the conventional curtain wall described in Patent Document 1 includes a condensation receiving block fixed to the end wall piece of the mullion and a water droplet discharge plate fixed to the long side wall of the mullion and extending from the condensation receiving block to the mullion. The condensation water is received in the water receiving part of the condensation receiving block and flows over the water droplet discharge plate to the mullion. However, the lowest condensation discharge device in the conventional curtain wall is a device that treats condensation water generated on the surface of the mullion of the curtain wall that connects the mullions without mullions, and cannot treat condensation water generated on the surfaces of the opposing vertical frames of adjacent curtain wall units. In addition, multiple parts including the condensation receiving block and the water droplet discharge plate are required to treat the condensation water, and it is also time-consuming to install each part. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Special Publication No. 7-65362 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been developed in consideration of the above-mentioned problems in the conventional art, and its purpose is to easily drain and dispose of condensation water that occurs on the surfaces of opposing vertical frames of adjacent curtain wall units on the indoor side of the curtain wall into the bottom frame. [Means for solving the problem]

[0007] The present invention relates to a curtain wall in which curtain wall units each having a frame body having an upper frame, a lower frame, and a pair of vertical frames are arranged side by side in the left-right direction, A water receiving part is provided at the lower part of the indoor side of the vertical frames of the adjacent curtain wall units facing each other, from one vertical frame to the other vertical frame, to receive condensation water, The water receiving parts extend from the interior facing surfaces of the vertical frames facing each other to the bottom frame, and guide the condensation water to the bottom frame.a recess formed in the guide portion, forming a groove between the vertical frame and the lower frame and opening upward, and filled with a sealant; having The guide portion is a curtain wall having a guide portion that is arranged along the interior facing surfaces of the vertical frames facing each other and guides the condensation water toward the bottom frame. Effect of the Invention

[0008] According to the present invention, condensation water that occurs on the surfaces of the opposing vertical frames of adjacent curtain wall units on the indoor side of the curtain wall can be simply drained into the sill and disposed of. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a front view of the curtain wall of the present embodiment. [Diagram 2] FIG. 2 is a vertical cross-sectional view of the curtain wall of the present embodiment. [Diagram 3] FIG. 2 is a cross-sectional view of the curtain wall of the present embodiment. [Figure 4] FIG. 4 is an enlarged cross-sectional view of a portion of the curtain wall of the present embodiment shown in FIG. 3. [Diagram 5] 13 is a diagram showing a water receiving part attached to the vertical frame of this embodiment. FIG. [Figure 6] 13 is a diagram showing the water receiving part of this embodiment when not attached to the vertical frame. FIG. [Figure 7] FIG. 2 is a perspective view of the water receiving part of the embodiment, seen from above. [Figure 8] FIG. 2 is a perspective view of the water receiving part of the embodiment, seen from below. [Figure 9] This is an oblique view of a portion of the curtain wall of this embodiment that includes a water-receiving component, viewed from above. [Figure 10] This is an oblique view of a portion of the curtain wall of this embodiment that includes a water-receiving component, viewed from below. [Figure 11] 6 is a cross-sectional view of the curtain wall of the present embodiment taken along line X3-X3 in FIG. 5. [Figure 12] 6 is a cross-sectional view of the curtain wall of the present embodiment taken along line X4-X4 in FIG. 5. [Figure 13] 6 is a cross-sectional view of the curtain wall of the present embodiment taken along line X5-X5 in FIG. 5. [Figure 14] 6 is a cross-sectional view of the curtain wall of the present embodiment taken along line X6-X6 in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] 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 curtain wall for a building that includes a plurality of curtain wall units. The curtain wall and the curtain wall unit are used for the exterior wall of a building and are installed between the interior (indoor) and exterior (outdoor) of the building. The plurality of curtain wall units are combined with each other to form the wall surface of the building as a part of the curtain wall.

[0011] Fig. 1 is a front view of the curtain wall 1 of this embodiment, showing the curtain wall 1 installed on a wall portion 11 of a building 10 as viewed from the outside of the room. Fig. 2 is a vertical cross-sectional view of the curtain wall 1 of this embodiment, showing a part of the building 10 and the curtain wall 1 cut along the line X1-X1 in Fig. 1. Fig. 3 is a horizontal cross-sectional view of the curtain wall 1 of this embodiment, showing the curtain wall 1 cut along the line X2-X2 in Fig. 2.

[0012] As shown in the figure, the curtain wall 1 comprises a plurality of curtain wall units 2 installed side by side on a wall portion 11 of a building 10, and decorative materials 3 attached to the curtain wall units 2. The curtain wall units 2 are panel units that make up the curtain wall 1, and are pre-assembled as units before installation on the wall portion 11. The curtain wall 1 and the curtain wall units 2 are disposed on the outdoor side of a framework 12 of the building 10 and attached to the framework 12 to form the wall surface (exterior wall surface) of the wall portion 11 of the building 10. The plurality of curtain wall units 2 are installed side by side in the vertical direction and the horizontal direction R, and are combined with adjacent curtain wall units 2.

[0013] When the curtain wall 1 and curtain wall unit 2 installed in the building 10 are viewed from the front (see Figure 1), the direction that is up and down is the up-down direction, and the direction that is left and right is the left-right direction R. In Figure 1, the up-down direction is the vertical direction, and the left-right direction R is the horizontal direction. The indoor / outdoor direction S (see Figures 2 and 3) is the indoor / outdoor direction (indoor / outdoor direction) of the curtain wall 1 and curtain wall unit 2 installed in the building 10. In this way, the directions related to the curtain wall 1 and curtain wall unit 2 are specified by the directions when installed in the building 10. Also, the indoor side and outdoor side of the curtain wall 1 and curtain wall unit 2 refer to the indoor side and outdoor side when installed in the building 10.

[0014] The curtain wall unit 2 comprises panel bodies 2A, 2B and a frame body 4 surrounding the panel bodies 2A, 2B. The frame bodies 4 of the multiple curtain wall units 2 are respectively combined with the frame bodies 4 of the adjacent curtain wall units 2. The frame bodies 4 are rectangular opening frames that form an opening 4A, and are attached to the framework 12 of the building 10. The panel bodies 2A, 2B are rectangular glass panel bodies (for example, plate glass, double glazing, or laminated glass), and are each disposed in the opening 4A of the frame body 4.

[0015] The frame body 4 has four frames 5 to 8 (upper frame 5, lower frame 6, and a pair of vertical frames 7, 8) and a lintel 9 that are combined with each other. The upper frame 5 and lower frame 6 are upper and lower horizontal frames of the frame body 4, and extend along the left-right direction R (horizontal direction) at the upper and lower parts of the frame body 4. The pair of vertical frames 7, 8 (first vertical frame 7, second vertical frame 8) are side frames located on the left and right sides of the frame body 4, and extend along the up-down direction (vertical direction) at the sides of the frame body 4. The upper frame 5, lower frame 6, and the left and right vertical frames 7, 8 are connected to each other at their ends to form a frame of the frames 5 to 8. The lintel 9 extends along the left-right direction R between the upper frame 5 and lower frame 6, and is connected to the left and right vertical frames 7, 8 to divide the opening 4A of the frame body 4 into upper and lower parts. The panel bodies 2A and 2B are fitted into the frame body 4 and held by the frame body 4.

[0016] The curtain wall units 2 of the curtain wall 1 each include a frame body 4 having an upper frame 5, a lower frame 6, and a pair of vertical frames 7, 8, and the curtain wall units 2 and frame bodies 4 are installed side by side in the left-right direction R on a wall portion 11 of a building 10. A plate-shaped peri cover 13 is provided on the indoor side of the multiple curtain wall units 2 lined up on the left and right (see Figures 2 and 3). The peri cover 13 is an interior material located on the indoor side of the lower part of the frame body 4, and protrudes from the curtain wall unit 2 toward the indoor side. The peri cover 13 is also positioned on the indoor side of the lower frame 6 and vertical frames 7, 8 of the frame body 4, and extends in the left-right direction R along the lower frame 6.

[0017] The multiple curtain wall units 2 (see FIG. 3) are arranged adjacent to each other on the left and right, tilted in the same direction relative to the left-right direction R. In response to the tilt of the curtain wall units 2 in the left-right direction R, the upper frame 5 and lower frame 6 of the frame body 4 are arranged tilted relative to the left-right direction R. In a cross section in the left-right direction R, the wall surface of the building 10 is formed into an uneven shape (for example, a zigzag shape) by the multiple curtain wall units 2 lined up in the left-right direction R.

[0018] FIG. 4 is an enlarged cross-sectional view of a portion of the curtain wall 1 of the present embodiment shown in FIG. As shown in the figure, in two curtain wall units 2 adjacent in the left-right direction R, a first vertical frame 7 of one curtain wall unit 2 and a second vertical frame 8 of the other curtain wall unit 2 are arranged adjacent to each other on the left and right, facing each other in the left-right direction R. The first vertical frame 7 is one of a pair of vertical frames 7, 8 of the frame body 4, and is located on one side in the left-right direction R. The second vertical frame 8 is the other of the pair of vertical frames 7, 8 of the frame body 4, and is located on the other side in the left-right direction R.

[0019] The dimensions of the facing vertical frames 7, 8 (first vertical frame 7, second vertical frame 8) of two curtain wall units 2 adjacent to each other in the left-right direction R in the projection direction (indoor-outdoor direction S) are different from each other. Here, in the facing vertical frames 7, 8, the dimension of one vertical frame 7 (first vertical frame 7) in the projection direction is smaller than the dimension of the other vertical frame 8 (second vertical frame 8) in the projection direction. In addition, at a location where two curtain wall units 2 are adjacent to each other on the left and right, the first vertical frame 7 of one curtain wall unit 2 is arranged to face the indoor side portion of the second vertical frame 8 of the other curtain wall unit 2 in the left-right direction R. The second vertical frame 8 is arranged to protrude further than the first vertical frame 7 to a position on the outdoor side.

[0020] In each of the curtain wall units 2, one end of the lower frame 6 in the longitudinal direction is arranged to be aligned with the first vertical frame 7 in the indoor / outdoor direction S, and is connected to the portion of the first vertical frame 7 from the indoor side end to the outdoor side end, and is fixed to the first vertical frame 7. In contrast, the other end of the lower frame 6 in the longitudinal direction is connected to the outdoor side portion of the second vertical frame 8 in the projection direction, and is fixed to the second vertical frame 8. Therefore, at a location where two curtain wall units 2 are adjacent to each other, one end of the lower frame 6 connected to the first vertical frame 7 of one curtain wall unit 2 and the other end of the lower frame 6 connected to the second vertical frame 8 of the other curtain wall unit 2 are arranged with their positions shifted in the indoor / outdoor direction S. One end of the lower frame 6 is arranged at a position closer to the indoor side than the other end of the lower frame 6. In addition, the first vertical frame 7 is arranged without protruding from one end of the lower frame 6 to the indoor side, and the second vertical frame 8 is arranged protruding from the other end of the lower frame 6 to the indoor side.

[0021] The vertical frames 7, 8 each have a groove-shaped retaining portion 7A, 8A that retains the panel bodies 2A, 2B, a recessed portion 7B, 8B that protrudes from the retaining portion 7A, 8A toward the inside of the room, a visible portion 7C, 8C that connects to the indoor-side ends of the visible portion 7B, 8B, and an opposing portion 7D, 8D that protrudes from the visible portion 7C, 8C toward the outside of the room. In the opposing vertical frames 7, 8, the retaining portion 7A of the first vertical frame 7 is positioned closer to the indoor side than the retaining portion 8A of the second vertical frame 8.

[0022] The projection parts 7B, 8B of the vertical frames 7, 8 are inner peripheral parts located on the inner peripheral side of the vertical frames 7, 8, and the facing parts 7D, 8D of the vertical frames 7, 8 are outer peripheral parts located on the outer peripheral side of the vertical frames 7, 8. The inner peripheral side of the vertical frames 7, 8 is the inner peripheral side of the frame body 4 (the opening 4A side of the frame body 4), and the outer peripheral side of the vertical frames 7, 8 is the outer peripheral side of the frame body 4 (the opposite side of the opening 4A of the frame body 4). The visible parts 7C, 8C of the vertical frames 7, 8 are indoor side parts located on the indoor side of the vertical frames 7, 8, and are formed between the indoor side ends of the projection parts 7B, 8B and the indoor side ends of the facing parts 7D, 8D. At the location where two curtain wall units 2 are adjacent to each other, the visible parts 7C, 8C of the vertical frames 7, 8 facing each other are arranged facing each other with a gap between them, separated in the left-right direction R.

[0023] The visible surfaces 7E, 8E of the visible portions 7B, 8B are the surfaces on the inner circumference side of the vertical frames 7, 8, and the visible portions 7B, 8B and the visible surfaces 7E, 8E are formed along the visibility direction of the vertical frames 7, 8. The visible surfaces 7F, 8F of the visible portions 7C, 8C are the surfaces on the indoor side of the vertical frames 7, 8, and the visible portions 7C, 8C and the visible surfaces 7F, 8F are formed along the visibility direction (left-right direction R) of the vertical frames 7, 8. The visible surfaces 7E, 8E are formed from the ends of the visible surfaces 7F, 8F located on the inner circumference side of the vertical frames 7, 8 toward the outdoor side.

[0024] The facing parts 7D, 8D of the vertical frames 7, 8 are connected to the ends of the facing surfaces 7F, 8F located on the outer periphery of the vertical frames 7, 8, and are formed along the projection direction of the vertical frames 7, 8. At the location where two curtain wall units 2 are adjacent to each other, the facing parts 7D, 8D of the opposing vertical frames 7, 8 are arranged facing each other with a gap between them, separated in the left-right direction R. The facing vertical frames 7, 8 of adjacent curtain wall units 2 form a joint space M between them by their respective facing parts 7D, 8D. The joint space M is a space (void) of the joint located between the two opposing vertical frames 7, 8 (facing parts 7D, 8D) and is open toward the inside of the room.

[0025] The visible surface 7E (visible portion 7B) of the first vertical frame 7 is positioned above one end of the lower frame 6 without protruding from the one end toward the room inside. The visible surface 7F (visible portion 7C) of the first vertical frame 7 is positioned continuous with the edge of the lower frame 6 on the room side in the longitudinal direction of the lower frame 6. In contrast, the visible surface 8E (visible portion 8B) of the second vertical frame 8 is positioned protruding from the other end of the lower frame 6 toward the room side. The visible surface 8F (visible portion 8C) of the second vertical frame 8 is positioned away from the other end of the lower frame 6 toward the room side and at a position closer to the room than the other end of the lower frame 6.

[0026] In the second vertical frame 8, the outdoor side portion of the visible surface 8E is positioned above the other end of the bottom frame 6, and the indoor side portion of the visible surface 8E is positioned at a position further indoors than the other end of the bottom frame 6. Also, the indoor side portion of the visible surface 8E is positioned at one side in the left-right direction R relative to the visible surface 7E of the first vertical frame 7, and the outdoor side portion of the visible surface 8E is positioned at a position further outdoor than the visible surface 7E of the first vertical frame 7.

[0027] The curtain wall unit 2 includes covers 7G, ​​8G (first cover 7G, second cover 8G) that cover the vertical frames 7, 8 on the indoor side of the panel bodies 2A, 2B. The first cover 7G is attached to the first vertical frame 7, and the second cover 8G is attached to the second vertical frame 8. The covers 7G, ​​8G are attached to the opposing vertical frames 7, 8 and are disposed on the indoor side of the panel bodies 2A, 2B, and are disposed in a position above the lower frame 6. The covers 7G, ​​8G are disposed with a gap between the visible faces 7E, 8E and the visible faces 7F, 8F of the vertical frames 7, 8, and cover the opposing vertical frames 7, 8. The vertical frames 7, 8 are shielded on the indoor side by the covers 7G, ​​8G.

[0028] The peri-cover 13 is disposed along the lower parts of the covers 7G, ​​8G with a gap between them. The curtain wall 1 is provided with a water receiving part 20 (indicated by a chain line in FIG. 4) disposed below the covers 7G, ​​8G and the peri-cover 13. The water receiving part 20 is shielded by the covers 7G, ​​8G and the peri-cover 13 when the curtain wall 1 is viewed from the inside of the room.

[0029] Fig. 5 is a diagram showing the water receiving part 20 attached to the vertical frames 7 and 8 of this embodiment, and shows a part of a cross-sectional view of the curtain wall 1 with the peri-cover 13 and covers 7G and 8G shown in Fig. 4 removed, and a plan view of the water receiving part 20 seen from above. Fig. 6 is a diagram showing the water receiving part 20 not attached to the vertical frames 7 and 8 of this embodiment, and shows a cross-sectional view of the curtain wall 1 shown in Fig. 5, and a plan view of the water receiving part 20 seen from above.

[0030] As shown in the figure, the water receiving part 20 is provided at the lower part of the indoor side of two opposing vertical frames 7, 8 of two curtain wall units 2 adjacent in the left-right direction R. The water receiving part 20 is a part for receiving condensed water, and is located indoors of the panel bodies 2A, 2B. The water receiving part 20 is arranged along the surfaces (outer surfaces) of the vertical frames 7, 8 on the indoor side of the panel bodies 2A, 2B, and receives condensed water formed on the surfaces of the vertical frames 7, 8. The condensed water is water that condenses on the surfaces of the vertical frames 7, 8, and runs down the surfaces of the vertical frames 7, 8.

[0031] Condensation water that flows down from the visible surface 7E of the first vertical frame 7 and the outdoor-facing portions of the visible surface 8E of the second vertical frame 8 is received by the sill 6. In contrast, condensation water that flows down from the visible surfaces 7F, 8F, the opposing portions 7D, 8D located in the joint space M, and the indoor-facing portions of the visible surface 8E of the second vertical frame 8 is not received by the sill 6, but is received by the water receiving parts 20 and guided towards the sill 6. The water receiving parts 20 guide the condensation water to the sill 6 and drain it into the sill 6.

[0032] The water receiving part 20 is fixed to each of the frame bodies 4 of the adjacent curtain wall units 2 by a plurality of screws 30, and is attached to each of the two vertical frames 7, 8 facing each other. The water receiving part 20 is provided across from the first vertical frame 7 of one of the vertical frames 7, 8 facing each other to the second vertical frame 8 of the other, and is attached to the vertical frames 7, 8. The screws 30 are an example of a fastener for fixing the water receiving part 20 to the frame body 4. On the first vertical frame 7 side, the water receiving part 20 is fixed to the sight surface 7F of the sight part 7C and one end of the lower frame 6 by the screws 30, and is attached to the facing part 7D and the sight surface 7F, and is arranged along the facing part 7D and the sight surface 7F. On the second vertical frame 8 side, the water receiving part 20 is fixed to the visible surface 8F of the visible part 8C and the visible surface 8E of the visible part 8B by screws 30, and is attached to the opposing part 8D, the visible surface 8F, and the visible surface 8E (the part on the inside of the room) and is arranged along the opposing part 8D, the visible surface 8F, and the visible surface 8E.

[0033] Fig. 7 is a perspective view of the water receiving part 20 of this embodiment as viewed from above, and Fig. 8 is a perspective view of the water receiving part 20 of this embodiment as viewed from below. Figs. 7A and 8A show the entire water receiving part 20, and Figs. 7B and 8B show the water receiving part 20 disassembled. As shown in Figs. 5 to 8, the water receiving part 20 can be divided into a plurality of parts (two in this example), and is fixed to each of the frame bodies 4 of adjacent curtain wall units 2. Therefore, the water receiving part 20 is composed of two divided parts 21, 22 (a first divided part 21 and a second divided part 22). The first divided part 21 is fixed to the frame body 4 of one curtain wall unit 2 and attached to the first vertical frame 7. The second divided part 22 is fixed to the frame body 4 of the other curtain wall unit 2 and attached to the second vertical frame 8. The first divided part 21 and the second divided part 22 abut against each other to constitute one water receiving part 20.

[0034] The water receiving part 20 (split parts 21, 22) is an elastic body that can be elastically deformed, and has a soft main body part 23 that constitutes the main body of the water receiving part 20, and a hard fixed part 24 that is fixed to the frame body 4. The main body part 23 and the fixed part 24 are provided on each of the split parts 21, 22. The elastically deformable main body part 23 constitutes the part of the water receiving part 20 other than the fixed part 24. The parts of the split parts 21, 22 that abut against each other are part of the main body part 23, and the split parts 21, 22 elastically deform in a state where they abut against each other. This causes the split parts 21, 22 to come into close contact with each other.

[0035] The fixing parts 24 are provided in a plurality of locations of the water receiving part 20 and fixed to the frame body 4 by screws 30. An insertion hole 25 is formed in the fixing part 24. The insertion hole 25 penetrates the fixing part 24, and the fixing part 24 is formed in a ring shape surrounding the insertion hole 25. The screw 30 is, for example, a truss screw, and is attached to the frame body 4 in a state where it passes through the insertion hole 25 and penetrates the fixing part 24. The fixing part 24 of the water receiving part 20 is sandwiched between the head of the screw 30 and the frame body 4 and fixed to the frame body 4. The divided parts 21 and 22 of the water receiving part 20 are fixed to the frame body 4 in a state where they are in close contact with each part of the vertical frames 7 and 8 by the screw 30.

[0036] The main body 23 of the water receiving part 20 is a soft part that is softer than the fixed part 24, and is formed, for example, from sponge-like silicone rubber (silicone sponge). The fixed part 24 of the water receiving part 20 is a hard part that is harder than the main body 23, and is formed, for example, from solid synthetic rubber (solid rubber). The main body 23 has lower rigidity against compressive deformation than the fixed part 24, and is more easily deformed than the fixed part 24. The fixed part 24 has higher rigidity against compressive deformation than the main body 23, and is less easily deformed than the main body 23. The main body 23 and the fixed part 24 are integrally molded to form the divided parts 21 and 22 of the water receiving part 20, respectively.

[0037] The water receiving part 20 has an L-shaped guide part 40 that guides condensation water to the sill 6, a joint compression part 50 that is compressed in the joint space M, groove-like recesses 41, 51 formed in the guide part 40 and the joint compression part 50, and a water stopping wall 42 formed in the guide part 40. The guide part 40, the joint compression part 50, the recesses 41, 51, and the water stopping wall 42 are provided in the separate parts 21, 22, respectively.

[0038] The guide section 40 extends from the indoor facing surfaces 7F, 8F of each of the two opposing vertical frames 7, 8 to the sill 6, and receives condensation water and guides it toward the sill 6. The water receiving part 20 guides the condensation water to each of the sills 6 of the adjacent curtain wall units 2 by the guide section 40, and drains the condensation water into each of the sills 6. The condensation water is drained from the guide section 40 to the upper surface of the sill 6 and is treated within the curtain wall 1.

[0039] The guide portion 40 is an upper surface portion including the upper surface of the water receiving part 20, and extends at an incline with respect to the horizontal direction. The guide portion 40 has a water gradient that gradually slopes downward along the guide path of the condensation water, and slopes diagonally downward toward the lower frame. The guide portion 40 is also arranged along the sight surfaces 7F, 8F of at least two vertical frames 7, 8. In the first vertical frame 7, the guide portion 40 of the first divided part 21 is located on the indoor side of the sight surface 7F and arranged along the sight surface 7F. In the second vertical frame 8, the guide portion 40 of the second divided part 22 is located on the indoor side of the sight surface 8F and on the inner peripheral side of the second vertical frame 8 of the sight surface 8E, and arranged along the sight surface 8F and the sight surface 8E.

[0040] The recesses 41 of the guiding section 40 are formed on the edges of the guiding section 40 located on the vertical frames 7, 8 (visible surfaces 7F, 8F, visible surface 8E) side and the bottom frame 6 side, and are arranged along the vertical frames 7, 8 and the bottom frame 6 to form a concave groove that is open upward between the vertical frames 7, 8 and the bottom frame 6. The recesses 51 of the joint compression section 50 are formed on both edges of the guiding section 40 located on the vertical frames 7, 8 (opposing portions 7D, 8D) side, and are arranged along the vertical frames 7, 8 to form a concave groove that is open upward between the vertical frames 7, 8.

[0041] With the divided parts 21, 22 of the water receiving part 20 attached to the vertical frames 7, 8, respectively (see FIG. 5), the recesses 41 of the guiding part 40 and the recesses 51 of the joint compression part 50 are filled with an amorphous sealant 31. The recesses 41, 51 are filled with the sealant 31. The first divided part 21 of the water receiving part 20 is bonded to the first vertical frame 7 and the bottom frame 6, and the second divided part 22 of the water receiving part 20 is bonded to the second vertical frame 8 and the bottom frame 6 by the sealant 31. The sealant 31 seals the areas between the guiding part 40 and the vertical frames 7, 8, between the guiding part 40 and the bottom frame 6, and between the joint compression part 50 and the vertical frames 7, 8.

[0042] The water stopping wall 42 of the guide section 40 is a protruding piece that protrudes upward and is disposed at a distance from the vertical frames 7, 8 (visible faces 7F, 8F, visible face 8E). Between the vertical frames 7, 8, the water stopping wall 42 forms a concave guide groove 43 that is open upward and guides condensation water toward the lower frame 6. The condensation water enters the guide groove 43 and flows inside the guide groove 43 between the vertical frames 7, 8 and the water stopping wall 42 toward the lower frame 6. At that time, the water stopping wall 42 prevents the condensation water from flowing out of the guide groove 43.

[0043] The guide section 40 has a sight guide section 44 that guides condensation water generated on the sight surfaces 7F, 8F of the vertical frames 7, 8 toward the lower frame 6, and a sight guide section 45 that guides condensation water generated on the sight surface 8E of the second vertical frame 8 toward the lower frame 6. The sight guide section 44 is provided in each of the separate parts 21, 22, and the sight guide section 45 is provided only in the second separate part 22. The sight guide section 44 of the first separate part 21 and the sight guide section 44 of the second separate part 22 abut and adhere to each other, and are continuous in the sight direction of the vertical frames 7, 8 to form one sight guide section 44 of the water receiving part 20.

[0044] The sight guiding portion 44 of the first separate part 21 is arranged along the sight surface 7F of the first vertical frame 7, and extends to the bottom frame 6 connected to the first vertical frame 7. The sight guiding portion 44 of the second separate part 22 is arranged along the sight surface 8F of the second vertical frame 8, and is continuous with the sight guiding portion 44 of the first separate part 21 and the sight guiding portion 45 of the second separate part 22. As a result, the sight guiding portion 44 of the water receiving part 20 is arranged along the indoor side sight surfaces 7F, 8F of the two opposing vertical frames 7, 8, and extends to the bottom frame 6 along the sight direction of the vertical frames 7, 8.

[0045] The projection guiding portion 45 of the second separate part 22 protrudes from the sight guiding portion 44 of the second separate part 22 toward the outside of the room, and extends along the projection direction of the second vertical frame 8. The projection guiding portion 45 is disposed along the projection surface 8E on the inner periphery side of the second vertical frame 8, which is located on the inside of the room further than the bottom frame 6, and extends from the sight guiding portion 44 to the bottom frame 6 which is connected to the second vertical frame 8.

[0046] The joint compression part 50 is an elastically deformable protrusion located on the outdoor side of the sight guide part 44 of the guide part 40, and is arranged in the joint space M, protruding from the sight guide part 44 toward the outdoor side. The joint compression part 50 is arranged between the parts (here, the facing parts 7D, 8D) located in the joint space M of the vertical frames 7, 8 facing each other, and is accommodated in the joint space M. The joint compression part 50 is arranged along the facing parts 7D, 8D of the vertical frames 7, 8, and is connected to the sight guide part 44 of the guide part 40 located on the indoor side. The joint compression part 50 receives condensation water generated on the facing parts 7D, 8D of the vertical frames 7, 8, and guides the condensation water toward the sight guide part 44 of the guide part 40.

[0047] The joint compression portion 50 of the first separate part 21 is arranged along the opposing portion 7D of the first vertical frame 7, and connects to the sight guide portion 44 of the guide portion 40 of the first separate part 21. The joint compression portion 50 of the second separate part 22 is arranged along the opposing portion 8D of the second vertical frame 8, and connects to the sight guide portion 44 of the guide portion 40 of the second separate part 22. The joint compression portion 50 of the first separate part 21 and the joint compression portion 50 of the second separate part 22 abut and come into close contact with each other, constituting one joint compression portion 50 of the water receiving part 20.

[0048] The thickness dimension of the joint compression portion 50 of the water receiving part 20 is larger than the dimension of the joint space M in the thickness direction of the joint compression portion 50 (the distance between the opposing portions 7D, 8D of the vertical frames 7, 8). Therefore, when arranged in the joint space M, the joint compression portion 50 is compressed between the opposing portions 7D, 8D of the vertical frames 7, 8 facing each other, and comes into close contact with each of the opposing portions 7D, 8D of the vertical frames 7, 8. In addition, due to the compression, the joint compression portion 50 of the first divided part 21 and the joint compression portion 50 of the second divided part 22 come into close contact with each other without any gaps.

[0049] Fig. 9 is a perspective view of a portion including the water receiving part 20 of the curtain wall 1 of this embodiment as viewed from above, and Fig. 10 is a perspective view of a portion including the water receiving part 20 of the curtain wall 1 of this embodiment as viewed from below. Figs. 9A and 9B show the curtain wall 1 as viewed from different directions, and Figs. 10A and 10B show the curtain wall 1 as viewed from different directions.

[0050] As shown in the figure, before the curtain wall unit 2 is installed on the wall portion 11 of the building 10 (for example, when assembling the curtain wall unit 2), the divided parts 21, 22 of the water receiving part 20 are attached to the vertical frames 7, 8 of the curtain wall unit 2, respectively. In this state, a plurality of curtain wall units 2 are installed on the wall portion 11 of the building 10, and adjacent curtain wall units 2 are combined with each other. Accordingly, the first divided part 21 and the second divided part 22 of the curtain wall units 2 adjacent in the left-right direction R abut against each other, and the water receiving part 20 consisting of the first divided part 21 and the second divided part 22 is provided at the lower part of the indoor side of the vertical frames 7, 8.

[0051] A wall 6A is formed on the indoor side of the lower frame 6. The wall 6A protrudes upward from the upper surface of the lower frame 6 and extends in the longitudinal direction of the lower frame 6. Condensed water is drained by the water receiving part 20 toward a location on the outdoor side (panel body 2B side) of the wall 6A of the lower frame 6. The wall 6A prevents the condensed water from flowing out from the lower frame 6 to the indoor side.

[0052] Fig. 11 is a cross-sectional view of the curtain wall 1 of this embodiment taken along the line X3-X3 in Fig. 5. Fig. 12 is a cross-sectional view of the curtain wall 1 of this embodiment taken along the line X4-X4 in Fig. 5. As shown in the figure, at the location where the bottom frame 6 is connected to the water receiving part 20, the wall part 6A is removed and a condensation water receiving part 6B is formed in the wall part 6A of the bottom frame 6. The water receiving part 20 is connected to the receiving part 6B of the bottom frame 6 and guides the condensation water to the receiving part 6B of the bottom frame 6, where it is drained. The bottom frame 6 receives the condensation water in the receiving part 6B and processes the condensation water.

[0053] The sight guide section 44 of the guide section 40 is disposed on the sight surfaces 7F, 8F of the two opposing vertical frames 7, 8, and extends along the sight surfaces 7F, 8F while being inclined with respect to the horizontal direction. The sight guide section 44 has a water gradient that guides condensation water toward the bottom frame 6 (receiving section 6B), and gradually slopes downward toward the bottom frame 6. The condensation water is guided by the sight guide section 44 from the sight surfaces 7F, 8F of the vertical frames 7, 8 toward the bottom frame 6, and is drained into the bottom frame 6.

[0054] FIG. 13 is a cross-sectional view of the curtain wall 1 of this embodiment taken along line X5-X5 in FIG. As shown in the figure, the joint compression portion 50 of the water receiving part 20 is disposed at the opposing portions 7D, 8D of the vertical frames 7, 8 facing each other, and extends along the opposing portions 7D, 8D of the vertical frames 7, 8 while being inclined with respect to the horizontal direction. The joint compression portion 50 has a water gradient that guides condensation water toward the guide portion 40 (here, the spot guide portion 44) of the water receiving part 20, and gradually slopes downward from the outside of the room toward the guide portion 40 on the inside of the room. The condensation water is guided from the joint space M to the guide portion 40 by the joint compression portion 50, and flows to the guide portion 40.

[0055] FIG. 14 is a cross-sectional view of the curtain wall 1 of this embodiment taken along line X6-X6 in FIG. As shown in the figure, the projection guide portion 45 of the guide section 40 is disposed on the projection surface 8E of the second vertical frame 8, and extends along the projection surface 8E while being inclined with respect to the horizontal direction. The projection guide portion 45 has a water gradient that guides condensation water toward the bottom frame 6 (receiving section 6B), and gradually slopes downward toward the bottom frame 6. The condensation water is guided by the projection guide portion 45 from the projection surface 8E of the second vertical frame 8 toward the bottom frame 6, and is drained into the bottom frame 6.

[0056] As described above, in the curtain wall 1 of this embodiment, the water receiving parts 20 allow condensation water generated on the surfaces of the opposing vertical frames 7, 8 of adjacent curtain wall units 2 on the indoor side of the curtain wall 1 to be simply drained to the lower frame 6 for disposal. In addition, the condensation water flows from the surfaces of the vertical frames 8 onto the peri-cover 13, preventing the condensation water from accumulating on the peri-cover 13.

[0057] The joint compression part 50 of the water receiving part 20 is disposed in the joint space M in a compressed state. Therefore, the joint compression part 50 can be reliably disposed in the joint space M between the two vertical frames 7, 8, and the joint compression part 50 can reliably receive condensation water generated on the surfaces of the vertical frames 7, 8 in the joint space M. In addition, the joint compression part 50 can drain the condensation water from the joint space M and suppress the condensation water from falling downward from the joint space M. With the compression, the joint compression part 50 of the first divided part 21 and the joint compression part 50 of the second divided part 22 can also be reliably brought into close contact with each other without applying a sealant.

[0058] The visible guide portion 44 of the water receiving part 20 allows condensation water generated on the visible surfaces 7F, 8F of the vertical frames 7, 8 to be received and drained toward the bottom frame 6. In addition, the visible guide portion 45 of the water receiving part 20 allows condensation water generated on the visible surface 8E of the second vertical frame 8 to be received and drained toward the bottom frame 6.

[0059] The elastic deformation of the main body 23 of the water receiving part 20 allows it to follow the thermal expansion / contraction and interlayer displacement of the curtain wall 1, and allows the water receiving part 20 to stably perform its functions. The fixing part 24 of the water receiving part 20 is harder than the main body 23, and it is possible to suppress crushing of the fixing part 24 due to tightening with the fixing device, the screw 30, and deformation of the water receiving part 20. By making the divided parts 21, 22 of the water receiving part 20 into an integrally molded rubber product, the water receiving part 20 of a complex shape can be easily formed and the quality of the water receiving part 20 can be stabilized.

[0060] The divided parts 21, 22 of the divided water receiving part 20 can be attached to each of the curtain wall units 2 in advance, thereby reducing the labor required for constructing the curtain wall 1. In addition, there is no need to fill the recesses 41, 51 of the water receiving part 20 with the sealing material 31 at the construction site of the curtain wall 1, thereby improving the construction efficiency of the curtain wall 1.

[0061] In addition, the divided parts 21 and 22 of the water receiving part 20 may be attached to the curtain wall unit 2 after the curtain wall unit 2 is installed on the wall part 11 of the building 10. The water receiving part 20 may not be divided into the two divided parts 21 and 22, but may be a single part molded as a whole. In this case, after the curtain wall unit 2 is installed on the wall part 11 of the building 10, the water receiving part 20 is provided on the lower part of the indoor side of the vertical frames 7 and 8 facing each other. In contrast, the water receiving part 20 may be divided into three or more divided parts and fixed to each of the frame bodies 4 of the adjacent curtain wall units 2. In this case, one or both of the two divided parts 21 and 22 are divided into multiple parts.

[0062] The shape of the curtain wall unit 2 is not particularly limited. Therefore, the curtain wall unit 2 may be a curtain wall unit formed in a flat shape in a cross section in the left-right direction R. For example, the projection guide portion 45 may be provided in both the divided parts 21 and 22 of the water receiving part 20 in accordance with the shape of the frame body 4 of the curtain wall unit 2, or the projection guide portion 45 may not be provided in both the divided parts 21 and 22 of the water receiving part 20. In addition, the projection guide portion 44 of the water receiving part 20 may guide condensation water toward the bottom frame 6 of one of the curtain wall units 2 among the adjacent curtain wall units 2, or may guide condensation water toward the bottom frames 6 of both curtain wall units 2.

[0063] As described above, the curtain wall is a curtain wall in which curtain wall units each having a frame body having an upper frame, a lower frame, and a pair of vertical frames are arranged in the left-right direction, A water receiving part is provided at the lower part of the indoor side of the vertical frames of the adjacent curtain wall units facing each other, from one vertical frame to the other vertical frame, to receive condensation water, The water receiving part is a curtain wall that extends from the interior facing surface of the opposing vertical frames to the bottom frame and has a guide portion that guides the condensation water to the bottom frame. Therefore, condensation water that forms on the surfaces of the opposing vertical frames of adjacent curtain wall units on the indoor side of the curtain wall can be easily drained into the sill and disposed of.

[0064] The vertical frames facing each other form a joint space between them that is open toward the inside of the room, The water receiving part has a joint compression part that is disposed in the joint space and compressed between the opposing vertical frames, and is connected to the guide part to guide the condensation water to the guide part. Therefore, the joint compression part of the water receiving part can be reliably arranged in the joint space between the two vertical frames, and the joint compression part can reliably receive the condensation water generated on the surface of the vertical frames in the joint space. Also, the joint compression part can drain the condensation water from the joint space and suppress the condensation water from falling downward from the joint space.

[0065] The guide portion has a guide portion that is arranged along the indoor facing surfaces of the vertical frames that face each other and guides the condensation water toward the bottom frame. The sight guide section can receive condensation water that occurs on the sight surface of the vertical frame and drain it toward the bottom frame.

[0066] The guide portion has a guide portion that is arranged along the visible surface on the inner periphery of the vertical frame and guides the condensation water toward the lower frame. The projection guide section allows condensation water that forms on the projection surface of the vertical frame to be collected and drained toward the lower frame.

[0067] The water receiving part has an elastically deformable main body portion and a fixing portion that is fixed to the frame body by a fixing tool and is harder than the main body portion. The elastic deformation of the main body of the water receiving part allows it to follow the thermal expansion and contraction and interlayer displacement of the curtain wall, allowing the water receiving part to perform its function stably. In addition, it is possible to suppress the crushing of the fixing part of the water receiving part due to tightening by the fixing tool, and the deformation of the water receiving part.

[0068] The water-receiving parts are divided and fixed to each of the frames of the adjacent curtain wall units. The divided water receiving parts can be attached to each curtain wall unit in advance, thereby reducing the labor required for constructing the curtain wall. [Explanation of symbols]

[0069] Reference Signs List 1...Curtain wall, 2...Curtain wall unit, 2A...Panel body, 2B...Panel body, 3...Facing material, 4...Frame body, 4A...Opening, 5...Upper frame, 6...Lower frame, 6A...Wall section, 6B...Receiving section, 7...First vertical frame, 7A...Holding section, 7B...Projected section, 7C...Finding section, 7D...Facing section, 7E...Projected surface, 7F...Finding surface, 7G...First cover, 8...Second vertical frame, 8A...Holding section, 8B...Projected section, 8C...Finding section, 8D...Facing section, 8E...Projected surface, 8F...Finding Mounting surface, 8G···Second cover, 9···Gluer, 10··Building, 11··Wall section, 12···Main body, 13···Periphery cover, 20···Water receiving part, 21···First separate part, 22···Second separate part, 23···Main body, 24···Fixing part, 25···Insertion hole, 30···Screw, 31···Sealant, 40···Guide part, 41···Recess, 42···Water stop wall, 43···Guide groove, 44···Sight guide part, 45···Prospect guide part, 50···Joint compression part, 51···Recess, M···Joint space, R···Left / right direction, S···Indoor / outdoor direction.

Claims

1. A curtain wall in which curtain wall units each having a frame body having an upper frame, a lower frame, and a pair of vertical frames are arranged side by side in the left-right direction, A water receiving part is provided at the lower part of the indoor side of the vertical frames of the adjacent curtain wall units facing each other, from one vertical frame to the other vertical frame, to receive condensation water, The water receiving part includes a guide portion that extends from the interior facing surface of the vertical frames to the bottom frame and guides the condensation water to the bottom frame, and a recess formed in the guide portion, which forms a groove that opens upward between the vertical frames and the bottom frame and is filled with a sealant, The guide portion is arranged along the interior facing surfaces of the vertical frames facing each other, and has a guide portion that guides the condensation water toward the lower frame.

2. The curtain wall according to claim 1, The vertical frames facing each other form a joint space between them that is open toward the inside of the room, The water-receiving part is a curtain wall having a joint compression part that is arranged in the joint space and compressed between the opposing vertical frames, and is connected to the guide part to guide the condensation water to the guide part.

3. The curtain wall according to claim 1 or 2, The curtain wall has a prospective guide portion arranged along the prospective surface on the inner periphery of the vertical frame, which guides the condensation water toward the lower frame.

4. The curtain wall according to any one of claims 1 to 3, The water-receiving part is a curtain wall having an elastically deformable main body portion and a fixing portion which is harder than the main body portion and is fixed to the frame body by a fixing device.

5. The curtain wall according to any one of claims 1 to 4, The water-receiving parts are divided and fixed to each of the frames of adjacent curtain wall units.

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