curtain wall

Abstract

To improve a design property of a curtain wall by supporting either of opposing edges of a panel body of the curtain wall without using a batten.SOLUTION: A panel body 3 is arranged in an opening 2A between two adjacent frame members 4A and 4B, and has one side edge 6A supported by the one frame member 4A and the other side edge 6B supported by the other frame member 4B. One frame member 4A has a batten 20 holding the one side edge 6A. The panel body 3 has an edge material 30 attached to the other side edge 6B and a holding portion 32 provided on the edge material 30. The other frame material 4B has a fitting portion 50 that fits to the holding portion 32 and holds the holding portion 32.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a curtain wall having a panel body that is placed in an opening between frame members. [Background technology]

[0002] In a curtain wall installed on the wall of a building, an opening is formed by the frame members that make up the frame body, and a panel body is placed in the opening. The edges of the panel body are held by and supported by the frame members. Also, a conventional mounting structure for the panel is known in which a batten is attached to the mullions of the curtain wall, and the mullions and the batten hold the glass sheets together (see Patent Document 1).

[0003] In the conventional batten mounting structure described in Patent Document 1, the opposing edges (left and right edges) of the glass panel are supported by the mullions and battens, which are frame materials. However, with the conventional batten mounting structure, the edges of the glass panel must be placed in the space between the mullions and battens, making it difficult to slim the frame material in the forward direction. This makes it difficult to slim the frame material and improve the design of the curtain wall. In response to this, for example, it is possible to slim the frame material by not supporting one of the opposing edges of the glass panel. However, in this case, since one edge of the glass panel is not supported, measures such as thickening the glass panel are required. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-148276 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been developed in consideration of the above-mentioned conventional problems, and its purpose is to improve the design of curtain walls by supporting one of the opposing edges of a curtain wall panel without using a batten. [Means for solving the problem]

[0006] The present invention provides a curtain wall having a panel body that is arranged in an opening between two adjacent frame members and has one side edge supported by one of the frame members and the other side edge supported by the other frame member, the one frame member has a ledge that holds the one side edge portion, the panel body has an edge material attached to the other side edge portion and a holding portion provided on the edge material, The other frame material is a curtain wall having a fitting portion that fits into the retaining portion to hold the retaining portion. [Effects of the Invention]

[0007] According to the present invention, either of the opposing edges of a panel body of a curtain wall can be supported without using a batten, thereby improving the design of the curtain wall. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a front view showing the curtain wall of the first embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing the curtain wall of the first embodiment. [Figure 3] FIG. 2 is a cross-sectional view showing a portion including vertical frame members of the curtain wall of the first embodiment. [Figure 4] FIG. 10 is a cross-sectional view showing the curtain wall of the second embodiment. [Figure 5] FIG. 10 is a cross-sectional view showing a portion including vertical frame members of a curtain wall according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the curtain wall of the present invention will be described with reference to the drawings. The curtain wall of this embodiment is a knock-down type curtain wall that is assembled at the construction site of a building. The curtain wall is used in the wall portion of a building and is installed between the interior (indoor) and exterior (outdoor) of the building to form the wall portion of the building.

[0010] (First embodiment) Fig. 1 is a front view showing a curtain wall 1 of the first embodiment, and shows 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 cross-sectional view showing the curtain wall 1 of the first embodiment. As shown in the figure, the curtain wall 1 has a wall surface portion 1A that forms a wall surface 12 of a wall portion 11 of a building 10. The curtain wall 1 is attached to a skeleton (not shown) of the building 10 and installed on the wall portion 11 (exterior wall portion) of the building 10, and the wall portion 11 and wall surface 12 of the building 10 are formed by the wall surface portion 1A.

[0011] When the curtain wall 1 installed on the building 10 is viewed from the front (see Figure 1), the up-down direction is the up-down direction, and the left-right direction is the left-right direction. In Figure 1, the up-down direction is the vertical direction, and the left-right direction is the horizontal direction. The indoor-outdoor direction (see Figure 2) is the indoor-outdoor direction (indoor-outdoor direction) of the curtain wall 1 installed on the building 10. Furthermore, the indoor-outdoor direction is the front-to-back direction when the curtain wall 1 installed on the building 10 is viewed from the front, and in Figure 1, it is the horizontal direction perpendicular to the left-to-right direction. In this way, the directions related to the curtain wall 1 are specified as the directions when installed on the building 10. Furthermore, the indoor side and outdoor side of the curtain wall 1 are the indoor side and outdoor side when installed on the building 10.

[0012] The curtain wall 1 comprises a vision section 1B and a spandrel section 1C provided on the wall section 1A. The vision section 1B and the spandrel section 1C are provided on the curtain wall 1 side by side, vertically adjacent to each other. The vision section 1B and the spandrel section 1C are also provided alternately on the curtain wall 1 in the vertical direction. The vision section 1B is a window section located on the outdoor side of the interior space of each floor of the building 10, and the spandrel section 1C is a waist section located on the outdoor side of the boundary portion between the upper and lower floors of the building 10. The boundary portion of the building 10 is the portion located on the boundary between the upper and lower floors of the building 10, and is located between the interior space of the upper floor and the interior space of the lower floor. The interior space of the building 10 is the usable space of the building 10, and is located between the upper and lower boundary portions.

[0013] The curtain wall 1 comprises a lattice-shaped frame body 2 and panel bodies 3 arranged in openings 2A of the frame body 2. The frame body 2 is a frame body (opening frame) that forms the openings 2A, and is attached to the skeleton of the building 10. The panel bodies 3 are rectangular panel-like members that are arranged in each of the multiple openings 2A of the frame body 2 and attached to the frame body 2. The panel bodies 3 are fixed panel bodies that are fixed to the frame body 2. In the wall surface portion 1A of the curtain wall 1, the multiple openings 2A are formed lined up in the vertical and horizontal directions, and the multiple panel bodies 3 are arranged lined up in the vertical and horizontal directions.

[0014] The frame body 2 has multiple frame members 4, 5 (multiple vertical frame members 4 and multiple horizontal frame members 5) combined with each other, and the frame members 4, 5 form multiple rectangular openings 2A. The frame members 4, 5 are components (frame components) that make up the frame body 2 and are made of metal (e.g., aluminum alloy) shaped members formed by extrusion. The vertical frame members 4 are vertical members located on the left and right sides of the opening 2A and extend in the up-down direction (vertical direction). The horizontal frame members 5 are horizontal members located above and below the opening 2A and extend in the left-right direction (horizontal direction). In the wall portion 1A of the curtain wall 1, the vertical frame members 4 are spaced apart in the left-right direction and attached to the skeleton of the building 10. The horizontal frame members 5 are located between adjacent vertical frame members 4 in the left-right direction and bridge the left and right vertical frame members 4.

[0015] The multiple vertical frame members 4 are spaced apart from one another in the left-right direction and lined up in order in the left-right direction. Between adjacent vertical frame members 4 in the left-right direction, multiple horizontal frame members 5 are spaced apart in the up-down direction and attached to the left and right vertical frame members 4. The multiple horizontal frame members 5 are also spaced apart from one another in the up-down direction and lined up in order in the up-down direction. The multiple vertical frame members 4 and the multiple horizontal frame members 5 are connected to one another and combined in a lattice (frame) shape.

[0016] The panel body 3 is held by vertical frame members 4 and horizontal frame members 5 and fixed to the opening 2A of the frame body 2. The multiple openings 2A of the frame body 2 are formed side by side in the left-right direction with vertical frame members 4 sandwiched between them, and are also formed side by side in the up-down direction with horizontal frame members 5 sandwiched between them. The openings 2A are formed between adjacent vertical frame members 4 in the left-right direction, and between adjacent horizontal frame members 5 in the up-down direction. The openings 2A are formed on both sides of the vertical frame members 4 in the left-right direction, and on both sides of the horizontal frame members 5 in the up-down direction.

[0017] The panel body 3 is arranged in the opening 2A between two adjacent vertical frame members 4 in the left-right direction, and is also arranged in the opening 2A between two adjacent horizontal frame members 5 in the up-down direction. The panel body 3 is also arranged in the openings 2A on both sides of the vertical frame members 4 in the left-right direction, and in the openings 2A on both sides of the horizontal frame members 5 in the up-down direction. The vertical frame members 4 are located between the left and right openings 2A and the panel body 3, and the horizontal frame members 5 are located between the upper and lower openings 2A and the panel body 3.

[0018] The panel body 3 has four edges 6, 7 (two vertical edges 6 and two horizontal edges 7) supported by the frame members 4, 5, and is supported by the frame body 2 at the edges 6, 7. The vertical edges 6 are edges located on the left and right sides of the panel body 3 (first vertical edge 6A, second vertical edge 6B) and extend in the up-down direction. The horizontal edges 7 are edges located on the top and bottom of the panel body 3 (first horizontal edge 7A, second horizontal edge 7B) and extend in the left-right direction. The vertical edges 6 are each supported by the vertical frame members 4 and extend along the vertical frame members 4 in the longitudinal direction of the vertical frame members 4 (up-down direction). The horizontal edges 7 are each supported by the horizontal frame members 5 and extend along the horizontal frame members 5 in the longitudinal direction of the horizontal frame members 5 (left-right direction). The first horizontal edge 7A is the upper edge of the panel body 3, and the second horizontal edge 7B is the lower edge of the panel body 3.

[0019] The panel body 3 is surrounded by four frame members 4, 5 at the opening 2A and is supported by the four frame members 4, 5. The left and right vertical edge portions 6 (6A, 6B) of the panel body 3 are positioned opposite each other in the left-right direction and are supported by two vertical frame members 4 that are adjacent in the left-right direction out of the four frame members 4, 5. The upper and lower horizontal edge portions 7 (7A, 7B) of the panel body 3 are positioned opposite each other in the up-down direction and are supported by two horizontal frame members 5 that are adjacent in the up-down direction out of the four frame members 4, 5.

[0020] The horizontal frame members 5 have detachable battens or retaining grooves (neither shown) that hold the lateral edges 7 (7A, 7B) of the panel body 3. When the horizontal frame members 5 have battens, the battens are detachably attached to the frame main body (e.g., mullions) of the horizontal frame members 5, and the lateral edges 7 of the panel body 3 are held by the frame main body and the battens. When the horizontal frame members 5 have retaining grooves, the panel body 3 is attached to the retaining grooves of the upper and lower horizontal frame members 5 in a snap-fit ​​manner by moving up and down, and the lateral edges 7 of the panel body 3 are held by the retaining grooves.

[0021] In the left-right direction, the panel body 3 is disposed between two adjacent vertical frame members 4 and is supported by the two vertical frame members 4. Of the left and right vertical edge portions 6 (6A, 6B) of the panel body 3, one vertical edge portion 6 is a side edge portion supported by one of the two vertical frame members 4, and the other vertical edge portion 6 is a side edge portion supported by the other of the two vertical frame members 4. Here, the side edge portion of the panel body 3 is a first vertical edge portion 6A, and the other side edge portion of the panel body 3 is a second vertical edge portion 6B. In the left-right direction, the first vertical edge portion 6A is a side vertical edge portion located on one side of the panel body 3, and the second vertical edge portion 6B is a side vertical edge portion located on the other side of the panel body 3. The multiple panel bodies 3 of the curtain wall 1 are installed in the opening 2A with the first vertical edge portion 6A positioned on the same side in the left-right direction.

[0022] Each of the vertical frame members 4 is arranged between the panel bodies 3 on both sides (one side, the other side) in the left-right direction, and supports the first vertical edge portion 6A of the panel body 3 located on one side in the left-right direction, and supports the second vertical edge portion 6B of the panel body 3 located on the other side in the left-right direction. In the curtain wall 1, when distinguishing between the vertical frame members 4 located on both sides (one side, the other side) in the left-right direction of the panel body 3 (opening 2A), of the two vertical frame members 4 adjacent to each other across the panel body 3, one vertical frame member 4 is referred to as the first vertical frame member 4A, and the other vertical frame member 4 is referred to as the second vertical frame member 4B (see Figure 2).

[0023] Here, in each panel body 3, the first vertical frame member 4A is one vertical frame member 4 (one-side frame member) that supports the first vertical edge portion 6A (one-side edge portion) of the panel body 3, and the second vertical frame member 4B is the other vertical frame member 4 (other-side frame member) that supports the second vertical edge portion 6B (other-side edge portion) of the panel body 3. Furthermore, each vertical frame member 4 is both the first vertical frame member 4A for the panel body 3 located on one side in the left-right direction and the second vertical frame member 4B for the panel body 3 located on the other side in the left-right direction.

[0024] The adjacent first vertical frame member 4A and second vertical frame member 4B are located on one side and the other side of the panel body 3 (opening 2A) in the left-right direction, and are arranged parallel to each other. The first vertical frame member 4A and second vertical frame member 4B are provided on the wall surface portion 1A of the curtain wall 1, forming the opening 2A in which the panel body 3 is placed between them. The first vertical frame member 4A and second vertical frame member 4B face each other in the left-right direction, sandwiching the opening 2A and the panel body 3 therebetween. One of the opposing first vertical edge portion 6A and second vertical edge portion 6B of the panel body 3 is supported using a batten, and the other is supported without a batten. Here, the first vertical edge portion 6A of the panel body 3 is held to the first vertical frame member 4A by the batten 20, and is supported to the first vertical frame member 4A using the batten 20. The second vertical edge portion 6B of the panel body 3 is held to the second vertical frame member 4B by the edge member 30, and is supported by the second vertical frame member 4B without using a batten.

[0025] FIG. 3 is a cross-sectional view showing a portion of the curtain wall 1 of the first embodiment including the vertical frame members 4, and shows an enlarged view of the peripheral portion of one of the vertical frame members 4 shown in FIG. As shown in the figure, when looking at the two vertical frame members 4 (4A, 4B) sandwiching the panel body 3, the first vertical frame member 4A has a detachable batten 20 that holds the first vertical edge portion 6A of the panel body 3, and a frame main body portion 40. The other, second vertical frame member 4B, has a fitting portion 50 that holds the second vertical edge portion 6B of the panel body 3. Here, the vertical frame member 4 functions between the two left and right panel bodies 3 as the first vertical frame member 4A for one panel body 3 and as the second vertical frame member 4B for the other panel body 3. Therefore, the vertical frame member 4 has the configurations of both the first vertical frame member 4A and the second vertical frame member 4B (batten 20, frame main body portion 40, and fitting portion 50).

[0026] The frame main body 40 is the main body (e.g., a mullion) of the vertical frame member 4, and has an indoor side portion 41 located on the indoor side of the panel body 3, and a protruding wall portion 42 arranged between the vertical edge portions 6 of the two left and right panel bodies 3. The indoor side portion 41 is a column-shaped portion and is arranged on the indoor side of the first vertical edge portion 6A of the panel body 3, and holds the first vertical edge portion 6A of the panel body 3. The protruding wall portion 42 is an outdoor side portion of the frame main body 40 that protrudes from the indoor side portion 41 to the outdoor side, and is arranged along the indoor-outdoor direction. The batten 20 is detachably attached to the protruding wall portion 42 of the frame main body 40, and holds the first vertical edge portion 6A of the panel body 3 on the outdoor side of the panel body 3.

[0027] The first vertical edge portion 6A of the panel body 3 is disposed between the batten 20 and the indoor side portion 41 of the frame main body 40, and is held by the batten 20 and the frame main body 40, and is supported by the vertical frame member 4, which is the first vertical frame member 4A. With respect to the protruding wall portion 42 of the frame main body 40, the batten 20 is located on the first vertical edge portion 6A side of one panel body 3 in the left-right direction, and the fitting portion 50 is located on the second vertical edge portion 6B side (opposite the batten 20) of the other panel body 3. The fitting portion 50 is a concave groove portion (fitting groove portion) that is provided over the entire longitudinal direction of the vertical frame member 4, which is the second vertical frame member 4B, and extends in the longitudinal direction of the vertical frame member 4.

[0028] The fitting portion 50 is provided integrally with the frame main body 40 (here, the protruding wall portion 42). The fitting portion 50 has a pair of fitting walls 51 spaced apart in the indoor-outdoor direction, and a storage groove 52 formed between the pair of fitting walls 51. The fitting portion 50 and the pair of fitting walls 51 protrude in the left-right direction from the protruding wall portion 42 of the frame main body 40 toward the second vertical edge portion 6B of the panel body 3. The pair of fitting walls 51 face each other in the indoor-outdoor direction, with the storage groove 52 sandwiched between them. The fitting portion 50 and the storage groove 52 are open in the left-right direction toward the second vertical edge portion 6B of the panel body 3.

[0029] The panel body 3 has a plate-shaped panel 3A that is the main body of the panel body 3, and an edge material 30 attached to the second vertical edge portion 6B. The panel 3A is a glass panel (here, a double-glazed panel), and the panel body 3 is a glass panel body. The edge material 30 is an edge member (here, a vertical edge member located at the second vertical edge portion 6B) located at the edge of the panel body 3, and is attached to the edge portion (vertical edge portion) of the panel 3A located at the second vertical edge portion 6B by a waterproof material. The edge material 30 also has an attachment portion 31 attached to the second vertical edge portion 6B of the panel body 3, a retaining portion 32 held by the fitting portion 50, and a screw 33 that attaches the retaining portion 32 to the attachment portion 31.

[0030] The edge material 30, and the mounting portion 31 and retaining portion 32 of the edge material 30, are provided over the entire longitudinal direction (up and down direction) of the second vertical edge portion 6B of the panel body 3, and extend in the longitudinal direction of the second vertical edge portion 6B. The surface of the mounting portion 31 is colored black. The fitting portion 50 of the vertical frame member 4 (second vertical frame member 4B) fits into the retaining portion 32 provided on the edge material 30, and retains the retaining portion 32, the edge material 30, and the second vertical edge portion 6B of the panel body 3.

[0031] The mounting portion 31 of the edge material 30 is formed from a metal (e.g., stainless steel) plate and is arranged from the indoor side of the edge of the panel 3A and the second vertical edge portion 6B to the outdoor side, covering the edge of the panel 3A. A water-stopping material is applied between the mounting portion 31 and the panel 3A, and the gap between the mounting portion 31 and the panel 3A is sealed by the water-stopping material. The mounting portion 31 and the edge material 30 are attached by adhesion to the edge of the panel 3A with the water-stopping material, and are attached and fixed to the edge of the panel 3A and the second vertical edge portion 6B.

[0032] The mounting portion 31 of the edge material 30 is arranged from the indoor side of the second vertical edge portion 6B of the panel body 3, through the end face 6C, to the outdoor side. The end face 6C is the face located at the end of the second vertical edge portion 6B of the panel body 3 on the second vertical frame member 4B side. The mounting portion 31 of the edge material 30 is located on the indoor side, end face 6C, and outdoor side of the second vertical edge portion 6B of the panel body 3, and the holding portion 32 of the edge material 30 is located on the end face 6C of the second vertical edge portion 6B of the panel body 3.

[0033] The mounting portion 31 of the edge material 30 has an end surface portion 34 located on the end surface 6C of the second vertical edge portion 6B of the panel body 3. The end surface portion 34 of the mounting portion 31 is the end surface portion of the edge material 30 and panel body 3 that constitutes the end surface 6C, and is arranged along the indoor-outdoor direction. The end surface portion 34 and the end surface 6C are arranged between the panel 3A and the second vertical frame member 4B (here, the protruding wall portion 42 of the frame main body portion 40) and between the panel 3A and the fitting portion 50, and face the second vertical frame member 4B and the fitting portion 50 in the left-right direction.

[0034] The retaining portion 32 of the edge material 30 is a convex fitted portion (fitted convex portion) that fits into the fitting portion 50. The retaining portion 32 is also a holding part (fitted part) and is attached to the end surface 34 of the mounting portion 31 of the edge material 30 with screws 33. The retaining portion 32 has a pair of retaining walls 35 that are spaced apart in the indoor-outdoor direction. The pair of retaining walls 35 face each other in the indoor-outdoor direction. The retaining portion 32 and the pair of retaining walls 35 protrude in the left-right direction from the end surface 34 (end surface 6C) of the mounting portion 31 toward the second vertical frame member 4B (here, the protruding wall portion 42 of the frame main body 40) and are disposed between the end surface 34 of the mounting portion 31 and the second vertical frame member 4B.

[0035] The retaining portion 32 and the pair of retaining wall portions 35 move in the left-right direction toward the fitting portion 50 of the second vertical frame member 4B and are inserted into the accommodating groove 52 inside the fitting portion 50. As a result, the retaining portion 32 and the pair of retaining wall portions 35 are accommodated in the accommodating groove 52 of the fitting portion 50 and fit into the fitting portion 50. Within the accommodating groove 52, the pair of retaining wall portions 35 of the retaining portion 32 each contacts the fitting wall portions 51 of the fitting portion 50 and are arranged along the fitting wall portions 51. The retaining portion 32 and the pair of retaining wall portions 35 are sandwiched between the pair of fitting wall portions 51 in the indoor-outdoor direction and fit into the pair of fitting wall portions 51 and the accommodating groove 52 of the fitting portion 50. The edge material 30 and the second vertical edge portion 6B of the panel body 3 are held by the fitting portion 50 of the second vertical frame member 4B by the retaining portion 32 and are supported by the second vertical frame member 4B.

[0036] The retaining portion 32 (a pair of retaining wall portions 35) of the edge material 30 fits into the fitting portion 50 of the second vertical frame member 4B so as to be slidable (movable) in the longitudinal direction (up and down direction) of the second vertical frame member 4B and is held by the fitting portion 50. When inter-story displacement occurs in the building 10 and the curtain wall 1 due to an earthquake, wind, or the like, the retaining portion 32, while fitted into the fitting portion 50, slides in the longitudinal direction of the second vertical frame member 4B along the fitting portion 50 within the accommodation groove 52 in response to the inter-story displacement. At that time, the pair of retaining wall portions 35 of the retaining portion 32, while each in contact with the fitting wall portion 51 of the fitting portion 50, slide in the longitudinal direction of the second vertical frame member 4B along the fitting wall portion 51 within the accommodation groove 52.

[0037] In this way, the fitting portion 50 of the second vertical frame member 4B allows the retaining portion 32 of the edge material 30 to slide in the longitudinal direction of the second vertical frame member 4B. In this state, the fitting portion 50, with the pair of fitting walls 51, restricts displacement of the retaining portion 32, edge material 30, and second vertical edge portion 6B of the panel body 3 in the indoor / outdoor direction, thereby holding the retaining portion 32, edge material 30, and second vertical edge portion 6B of the panel body 3 in the indoor / outdoor direction. In addition, the fitting portion 50 allows displacement of the retaining portion 32 of the edge material 30 in a direction away from the fitting portion 50 in a direction intersecting the indoor / outdoor direction (left / right direction).

[0038] The retaining portion 32 of the edge material 30 is fitted into the fitting portion 50 so as to be displaceable in a direction away from the fitting portion 50, while displacement in the indoor / outdoor direction is restricted by the fitting portion 50. When inter-story displacement occurs in the building 10 and the curtain wall 1, the second vertical frame member 4B deforms in response to the inter-story displacement. While fitted into the fitting portion 50, the retaining portion 32 displaces left and right within the accommodation groove 52 away from the fitting portion 50 in response to the deformation of the second vertical frame member 4B. At that time, within the accommodation groove 52, the pair of retaining wall portions 35 of the retaining portion 32, while each in contact with the fitting wall portions 51 of the fitting portion 50, displaces left and right along the fitting wall portions 51 away from the fitting portion 50.

[0039] Before constructing the curtain wall 1, the holding portion 32 of the edge material 30 is attached to the mounting portion 31 in advance, and the edge material 30 is attached to the second vertical edge portion 6B of the panel body 3. When constructing the curtain wall 1, the vertical frame members 4 and horizontal frame members 5 are installed on the wall portion 11 of the building 10 to assemble the frame body 2, and the vertical frame members 4 and horizontal frame members 5 form openings 2A in the frame body 2. In addition, the panel bodies 3 are placed in each of the openings 2A, and the panel bodies 3 are fixed and installed in the openings 2A. At each opening 2A, the upper and lower horizontal edge portions 7 (7A, 7B) of the panel body 3 are held by the upper and lower horizontal frame members 5.

[0040] With the batten 20 of the first vertical frame member 4A removed from the frame main body 40, the panel body 3 is placed in the opening 2A. Furthermore, in the opening 2A, the panel body 3 is moved in a direction (left-right direction) from the first vertical frame member 4A toward the second vertical frame member 4B, bringing the panel body 3 closer to the second vertical frame member 4B. As the panel body 3 moves left-right toward the second vertical frame member 4B in the opening 2A between the first and second vertical frame members 4A and 4B, the retaining portions 32 of the edge members 30 move from the first position to the second position in the left-right direction, approaching the fitting portions 50 of the second vertical frame member 4B. The first position of the retaining portions 32 is a position where the retaining portions 32 are not fitted into the fitting portions 50 (non-fitting position), and the second position of the retaining portions 32 is a position where the retaining portions 32 are fitted into the fitting portions 50 (fitting position).

[0041] As the panel body 3 moves in the left-right direction, the retaining portion 32 of the edge material 30 moves from the first position to the second position and is inserted into the fitting portion 50 (accommodating groove 52). As a result, the retaining portion 32 is positioned at the second position and fits into the fitting portion 50. The retaining portion 32 holds the edge material 30 and second vertical edge portion 6B of the panel body 3 to the fitting portion 50 and the second vertical frame member 4B. In this state, the batten 20 of the first vertical frame member 4A is attached to the frame main body 40. The batten 20 attaches and holds the first vertical edge portion 6A of the panel body 3 to the first vertical frame member 4A.

[0042] As described above, in the curtain wall 1 of the first embodiment, the second vertical edge 6B of the opposing first and second vertical edge portions 6A and 6B of the panel body 3 can be supported without using battens. Therefore, compared to a structure in which both the first and second vertical edge portions 6A and 6B of the panel body 3 are held to the vertical frame members 4 by battens, the panel body 3 can be supported by the first vertical frame member 4A and the second vertical frame member 4B without changing the support conditions of the panel body 3. Therefore, there is no need to increase the thickness of the panel body 3 in response to changes in the support conditions of the panel body 3. Furthermore, the vertical frame member 4, which is the second vertical frame member 4B, can be made slimmer by narrowing it in the front direction. This improves the design of the curtain wall 1.

[0043] The retaining portions 32 of the edge material 30 fit into the fitting portions 50 so as to be slidable in the longitudinal direction of the second vertical frame member 4B. Therefore, the retaining portions 32 can be slid along the fitting portions 50 to follow the inter-story displacement of the curtain wall 1, thereby dealing with the inter-story displacement of the curtain wall 1. Furthermore, in response to deformation of the second vertical frame member 4B caused by the inter-story displacement of the curtain wall 1, the retaining portions 32 can be displaced in a direction away from the fitting portions 50, thereby preventing the panel body 3 from being damaged by the second vertical frame member 4B.

[0044] By moving the panel body 3 in the opening 2A, the holding portion 32 of the edge material 30 approaches the fitting portion 50, allowing the holding portion 32 to easily fit into the fitting portion 50. Furthermore, by coloring the surface of the mounting portion 31 of the edge material 30 black, the mounting portion 31 blends in with the panel 3A of the panel body 3, making it possible to prevent the edge material 30 from standing out. By holding the first vertical edge portion 6A of the panel body 3 to the first vertical frame member 4A with the push edge 20, the panel body 3 can be installed in and removed from the opening 2A.

[0045] To remove the panel body 3, the batten 20 of the first vertical frame member 4A is removed from the frame main body 40. This releases the first vertical edge portion 6A of the panel body 3 from the first vertical frame member 4A, allowing the first vertical edge portion 6A of the panel body 3 to be removed from the first vertical frame member 4A. Next, the panel body 3 is moved in the left-right direction from the second vertical frame member 4B toward the first vertical frame member 4A through the opening 2A. As the panel body 3 moves, the holding portion 32 of the edge member 30 moves away from the fitting portion 50 of the second vertical frame member 4B in the left-right direction, moving from the second position (fitted position) to the first position (non-fitted position). Accordingly, the fitting of the holding portion 32 with the fitting portion 50 and the holding of the second vertical edge portion 6B of the panel body 3 by the second vertical frame member 4B are released. The panel body 3 is then removed through the opening 2A.

[0046] The fitting portion 50 may be a separate member (fitting component) from the frame main body portion 40 and attached to the frame main body portion 40. Also, the mounting portion 31 and the holding portion 32 of the edge material 30 may be formed integrally. The fitting portion 50 is not limited to a concave groove portion, and may have other shapes that can fit with the holding portion 32. Therefore, the holding portion 32 of the edge material 30 is not limited to a convex fitted portion, and may have other shapes that can fit with the fitting portion 50. For example, the fitting portion 50 may be a convex portion, and the holding portion 32 may be a concave groove portion that fits with the fitting portion 50.

[0047] The configuration of the first vertical frame member 4A and the configuration of the second vertical frame member 4B may be applied to all of the multiple vertical frame members 4 arranged side by side on the wall portion 11 of the building 10 and the wall surface portion 1A of the curtain wall 1, or may be applied to some of the multiple vertical frame members 4. Furthermore, the vertical frame members 4 may have only one of the configuration of the first vertical frame member 4A and the configuration of the second vertical frame member 4B. In this case, of the vertical frame members 4 adjacent in the left-right direction, one vertical frame member 4 has only the configuration of the first vertical frame member 4A, and the other vertical frame member 4 has only the configuration of the second vertical frame member 4B.

[0048] (Second embodiment) Next, a curtain wall 1 of a second embodiment will be described. In the curtain wall 1 of the second embodiment, explanations of the same matters as those in the curtain wall 1 of the first embodiment will be omitted, and the differences from the curtain wall 1 of the first embodiment will be mainly described. Furthermore, for the curtain wall 1 of the second embodiment, the same names as those in the curtain wall 1 of the first embodiment will be used for the components that correspond to those in the curtain wall 1 of the first embodiment.

[0049] Fig. 4 is a cross-sectional view showing the curtain wall 1 of the second embodiment. Fig. 5 is a cross-sectional view showing a portion including the vertical frame member 4 of the curtain wall 1 of the second embodiment, and shows an enlarged view of the peripheral portion of the second vertical frame member 4B shown in Fig. 4. As shown in the figure, the curtain wall 1 has a corner portion 1D located at a corner 13 of a wall portion 11 of a building 10. The corner 13 is a portion of the wall portion 11 of the building 10 where two wall surfaces 12 facing in different directions meet. The corner portion 1D is an inside corner or an outside corner of the curtain wall 1. An inside corner is a corner portion that appears as an inside corner when viewed from the outside of the room, and an outside corner is a corner portion that appears as an outside corner when viewed from the outside of the room. Here, the corner portion 1D of the curtain wall 1 is an inside corner that extends in the vertical direction.

[0050] The two panel bodies 3 located on both sides (one side and the other side) of the corner portion 1D are arranged in directions that intersect (here, perpendicular to) each other, sandwiching the corner portion 1D, and meet at the corner portion 1D. Vertical frame members 4 are provided on both sides of the corner portion 1D, sandwiching the corner portion 1D and the panel bodies 3. The vertical frame member 4 located at the corner portion 1D has only the configuration of the second vertical frame member 4B, while the vertical frame members 4 located on both sides of the corner portion 1D have only the configuration of the first vertical frame member 4A. In this way, the second vertical frame member 4B is provided at the corner portion 1D, and the first vertical frame member 4A is provided on both sides of the corner portion 1D. The panel bodies 3 located on both sides of the corner portion 1D are each installed in the opening 2A with their second vertical edge portions 6B positioned on the second vertical frame member 4B side of the corner portion 1D.

[0051] The frame main body 40 of the vertical frame members 4 (4A, 4B) is a column-shaped portion that does not have a protruding wall portion 42, and is located closer to the interior of the room than the panel body 3. The first vertical frame member 4A has a frame main body 40 and a batten 20. The frame main body 40 of the first vertical frame member 4A is positioned on the interior side of the first vertical edge portion 6A of the panel body 3 and holds the first vertical edge portion 6A of the panel body 3. The batten 20 of the first vertical frame member 4A is detachably attached to the frame main body 40 and holds the first vertical edge portion 6A of the panel body 3 on the exterior side of the panel body 3. The first vertical edge portion 6A of the panel body 3 is positioned between the batten 20 and the frame main body 40, is held by the batten 20 and the frame main body 40, and is supported by the first vertical frame member 4A.

[0052] The second vertical frame member 4B includes a frame main body 40, two fitting portions 50, and a connecting member 60 that connects the two fitting portions 50 to the frame main body 40. The connecting member 60 is an attachment attached to the frame main body 40 and has two opposing portions 61 arranged in directions that intersect with each other. The two opposing portions 61 of the connecting member 60 are arranged opposite each of the second vertical edge portions 6B (end surface portions 34) of the panel body 3 located on both sides of the corner portion 1D. The fitting portions 50 are fitting parts that are attached to each of the two opposing portions 61 of the connecting member 60 with screws 62 and back plates 63, and protrude from the opposing portions 61 of the connecting member 60 toward the second vertical edge portion 6B of the panel body 3.

[0053] The two fitting portions 50 of the second vertical frame member 4B each fit into the retaining portions 32 of the edge members 30 attached to the second vertical edge portions 6B of the panel bodies 3 located on both sides of the corner portion 1D, thereby holding the retaining portions 32. The second vertical edge portions 6B of the panel bodies 3 located on both sides of the corner portion 1D are supported by a common second vertical frame member 4B located at the corner portion 1D. The first vertical frame members 4A are provided on both sides of the second vertical frame member 4B located at the corner portion 1D, and are adjacent to the second vertical frame members 4B, and hold the first vertical edge portions 6A of the panel body 3 with the battens 20. The first vertical edge portions 6A of the panel bodies 3 located on both sides of the corner portion 1D are supported by the first vertical frame members 4A located on both sides of the corner portion 1D. In the second embodiment of the curtain wall 1, the second vertical frame member 4B at the corner portion 1D is fitted to the retaining portions 32 of the panel bodies 3 on both sides of the corner portion 1D by fitting portions 50, so that the second vertical frame member 4B at the corner portion 1D can be made particularly slim.

[0054] The frame main body 40, connecting member 60, and two fitting portions 50 of the second vertical frame member 4B may be separate members, or may be integrally formed as a single member. The curtain wall 1 having the wall surface portion 1A and corner portion 1D may be implemented by combining the curtain wall 1 of the first embodiment with the curtain wall 1 of the second embodiment. The first vertical edge 6A of the panel body 3 may be either of the left and right vertical edges 6 of the panel body 3. The second vertical edge 6B of the panel body 3 is a vertical edge 6 different from the first vertical edge 6A of the left and right vertical edges 6 of the panel body 3.

[0055] In the curtain wall 1 of the first embodiment and the curtain wall 1 of the second embodiment, an example has been described in which the edge portions (one side edge portion, the other side edge portion) of the panel body of the present invention are applied to the vertical edge portions 6 (6A, 6B) of the panel body 3, and two adjacent frame members (one frame member, the other frame member) of the present invention are applied to the vertical frame members 4 (4A, 4B). In contrast, the present invention is not limited to the vertical edge portions 6 and vertical frame members 4 of the panel body 3, but can be applied to other edge portions of the panel body and other frame members.

[0056] Specifically, the present invention may be applied to the horizontal edges 7 (7A, 7B) located at the top and bottom of the panel body 3, and the horizontal frame members 5 (first horizontal frame member, second horizontal frame member) located above and below the panel body 3. In this case, one side edge of the panel body is one of the first horizontal edge 7A and the second horizontal edge 7B of the panel body 3, and the other side edge of the panel body is the other of the first horizontal edge 7A and the second horizontal edge 7B of the panel body 3. Furthermore, of two adjacent frame members, one frame member is one of the two horizontal frame members 5, and the other frame member is the other of the two horizontal frame members 5. The present invention is not limited to knock-down curtain walls, but can also be applied to various curtain walls (e.g., unit curtain walls).

[0057] As mentioned above, curtain walls are A curtain wall having a panel body that is arranged in an opening between two adjacent frame members and has one side edge supported by one of the frame members and the other side edge supported by the other frame member, the one frame member has a ledge that holds the one side edge portion, the panel body has an edge material attached to the other side edge portion and a holding portion provided on the edge material, The other frame material is a curtain wall having a fitting portion that fits into the retaining portion to hold the retaining portion. Therefore, either of the opposing edges of the curtain wall panel body can be supported without using a batten, thereby improving the design of the curtain wall.

[0058] The holding portion is fitted into the fitting portion so as to be slidable in the longitudinal direction of the other frame member. Therefore, the retaining portion of the edge material can be slid along the fitting portion of the other frame material to follow the inter-layer displacement of the curtain wall, thereby coping with the inter-layer displacement of the curtain wall.

[0059] The holding portion is fitted into the fitting portion so as to be displaceable in a direction away from the fitting portion, while displacement in the indoor / outdoor direction is restricted by the fitting portion. Therefore, in response to deformation of the other frame material due to interlayer displacement of the curtain wall, the retaining portion of the edge material can be displaced in a direction away from the fitting portion, thereby preventing damage to the panel body by the other frame material.

[0060] The retaining portion moves from a position where it does not engage with the engaging portion to a position where it engages with the engaging portion by moving toward the other frame material of the panel body at the opening, and then engages with the engaging portion. Therefore, by moving the panel body at the opening, the holding portion of the edge material can be easily fitted into the fitting portion.

[0061] The curtain wall has corner sections located at the corners of the building wall, The other frame member is provided at the corner portion and has the fitting portions that fit into the holding portions of the panel body located on both sides of the corner portion. Therefore, since the other frame material of the corner portion is fitted with the holding portions of the panel bodies on both sides of the corner portion by the fitting portions, the other frame material of the corner portion can be made particularly slim. [Explanation of symbols]

[0062] 1···Curtain wall, 1A···Wall section, 1B···Vision section, 1C···Spandrel section, 1D···Corner section, 2···Frame body, 2A···Opening, 3···Panel body, 3A···Panel, 4···Vertical frame member, 4A···First vertical frame member, 4B···Second vertical frame member, 5···Horizontal frame member, 6···Vertical edge portion, 6A···First vertical edge portion, 6B···Second vertical edge portion, 6C···End face, 7···Horizontal edge portion, 7A···First horizontal edge portion, 7B... Second horizontal edge portion, 10... Building, 11... Wall portion, 12... Wall surface, 13... Corner, 20... Push-in edge, 30... Edge material, 31... Mounting portion, 32... Retaining portion, 33... Screw, 34... End face portion, 35... Retaining wall portion, 40... Frame main body portion, 41... Indoor side portion, 42... Projecting wall portion, 50... Fitting portion, 51... Fitting wall portion, 52... Storage groove, 60... Connecting material, 61... Opposing portion, 62... Screw, 63... Back plate.

Claims

1. A curtain wall having a panel body that is arranged in an opening between two adjacent frame members and has one side edge supported by one of the frame members and the other side edge supported by the other frame member, the one frame member has a ledge that holds the one side edge portion, the panel body has an edge material attached to the other side edge portion and a holding portion provided on the edge material, The other frame material is a curtain wall having a fitting portion that fits into the retaining portion to hold the retaining portion.

2. The curtain wall according to claim 1, The retaining portion is a curtain wall that fits into the fitting portion so as to be slidable in the longitudinal direction of the other frame material.

3. The curtain wall according to claim 1 or 2, The retaining portion is a curtain wall that fits into the fitting portion so as to be displaceable in a direction away from the fitting portion while its displacement in the indoor / outdoor direction is restricted by the fitting portion.

4. The curtain wall according to any one of claims 1 to 3, The retaining portion moves from a position where it does not engage with the fitting portion to a position where it engages with the fitting portion by moving toward the other frame material of the panel body at the opening, thereby fitting into the fitting portion.

5. The curtain wall according to any one of claims 1 to 4, A corner portion is provided at a corner of a wall portion of a building, The other frame material is provided at the corner portion and has a fitting portion that fits into the retaining portions of the panel bodies located on both sides of the corner portion.

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