Window body

Abstract

To simply improve heat insulation performance of a window body holding a panel by a batten on an outdoor side.SOLUTION: A curtain wall unit 2 as a window body includes panels 2A and 2B, a vertical frame 6 which is a frame material for holding the panels 2A and 2B on an indoor side, a batten 20 for holding the panels 2A and 2B on the outdoor side, and a cover 30. The cover 30 is connected to the batten 20 while interposing a heat insulating material 40 between the batten 20 and the cover 30, and covers the batten 20 on the outdoor side.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a window having a panel held between a frame and a batten. [Background technology]

[0002] In window bodies such as curtain wall units and fittings, a panel is placed in an opening of a frame body, and a batten is attached to the frame material of the frame body. The batten is also placed on the outdoor side of the panel and holds the panel on the outdoor side. In such window bodies, the batten and the frame material are exposed to the outside air, and the temperatures of the batten and the frame material decrease according to the temperature of the outside air. In response to this, fittings have been known that improve their insulation performance by forming a glass-swallowing groove using an indoor aluminum member, an outdoor aluminum member, and an insulating bridge material that connects the indoor aluminum member and the outdoor aluminum member, and blocking heat transfer between the indoor and outdoor sides using the insulating bridge material (see Patent Document 1).

[0003] In the conventional fittings described in Patent Document 1, the insulating bridge material is connected to the connecting part of the indoor aluminum member by crimping the connecting part of the indoor aluminum member, and the insulating bridge material is connected to the main body of the outdoor aluminum member by crimping the main body of the outdoor aluminum member. In this way, a frame of a fitting having a glass swallowing groove is manufactured. However, it is necessary to connect the insulating bridge material to each of the relatively large indoor aluminum members and outdoor aluminum members that make up the frame by crimping, and it may be time-consuming to connect the insulating bridge material and manufacture the frame. In addition, a device is required to crimp each of the connecting part of the indoor aluminum member and the main body of the outdoor aluminum member, and it may be necessary to verify the strength and water-stopping properties of the crimped parts. Therefore, in the conventional fittings, there is a risk that the effort and cost required to improve the heat resistance performance will increase. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-169739 A Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been made in consideration of the above-mentioned problems in the conventional art, and has an object to simply improve the heat insulating performance of a window body in which a panel is held on the outdoor side by a batten. [Means for solving the problem]

[0006] The present invention relates to A window body comprising a panel, a frame material that holds the panel on the indoor side, and a batten that holds the panel on the outdoor side, The window body is connected to the ridge with an insulating material interposed between the ridge and a cover that covers the ridge on the outdoor side. Effect of the Invention

[0007] According to the present invention, it is possible to easily improve the insulating performance of a window body in which a panel is held on the outdoor side by a batten. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view showing the curtain wall of the first embodiment. [Diagram 2] FIG. 2 is a vertical cross-sectional view showing the curtain wall of the first embodiment. [Diagram 3] FIG. 2 is a cross-sectional view showing the curtain wall of the first embodiment. [Figure 4] 2 is a cross-sectional view showing the curtain wall of the first embodiment taken along the line X1-X1 in FIG. 1. [Diagram 5] 2 is a cross-sectional view showing the peripheral portion of the batten and cover of the curtain wall unit of the first embodiment. FIG. [Figure 6] FIG. 2 is a vertical cross-sectional view showing the curtain wall of the first embodiment taken along the line X2-X2 in FIG. [Figure 7]3 is a vertical cross-sectional view showing the curtain wall unit of the first embodiment taken along line X3-X3 in FIG. 1. [Figure 8] FIG. 11 is a cross-sectional view showing a curtain wall according to a second embodiment. [Figure 9] A cross-sectional view showing the peripheral portion of the batten and cover of the curtain wall unit of the second embodiment. [Figure 10] FIG. 11 is a vertical cross-sectional view showing a curtain wall according to a second embodiment. [Figure 11] FIG. 11 is a vertical cross-sectional view showing the curtain wall unit of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of a window body of the present invention will be described with reference to the drawings. The window body of this embodiment is a window structure equipped with a panel, and the panel is held by a frame material and a batten. Below, two embodiments of the curtain wall unit (window body) will be described, taking the case where the window body is a curtain wall unit as an example. The curtain wall unit is used in the curtain wall of a building and is installed on the exterior wall of the building. Furthermore, multiple curtain wall units are combined with each other to form part of the curtain wall. The curtain wall unit and the curtain wall are installed on the exterior wall of the building, between the indoors (indoors) and outdoors (outdoors) of the building, to form the exterior wall of the building.

[0010] (First embodiment) Fig. 1 is a front view showing the curtain wall 1 of the first embodiment, showing a part of the curtain wall 1 installed in a building 10 and a schematic configuration of a curtain wall unit 2 as viewed from the outdoor side. Fig. 2 is a vertical cross-sectional view showing the curtain wall 1 of the first embodiment, showing the curtain wall 1 and a part of the building 10 cut along a plane including the up-down direction R and the indoor-outdoor direction T. Fig. 3 is a horizontal cross-sectional view showing the curtain wall 1 of the first embodiment, showing the curtain wall 1 cut along a plane including the left-right direction S and the indoor-outdoor direction T.

[0011] When the curtain wall 1 and the curtain wall unit 2, which is a window body, installed on the building 10 are viewed from the front, the up-down direction is the up-down direction R, and the left-right direction is the left-right direction S. In FIG. 1, the up-down direction R is the vertical direction, and the left-right direction S is the horizontal direction. The indoor-outdoor direction T is the indoor-outdoor direction (indoor-outdoor direction) of the curtain wall 1 and the curtain wall unit 2 installed on the building 10. Also, the indoor-outdoor direction T is the front-back direction (depth direction) when the curtain wall 1 and the curtain wall unit 2 installed on the building 10 are viewed from the front, and in FIG. 1, it is the horizontal direction perpendicular to the left-right direction S. In this way, the directions related to the curtain wall 1 and the curtain wall unit 2 are specified by the directions in the state where they are installed on the building 10. Also, the indoor side and the outdoor side of the curtain wall 1 and the curtain wall unit 2 are the indoor side and the outdoor side in the state where they are installed on the building 10.

[0012] As shown in the figure, a building 10 comprises an exterior wall 11, a framework 12, and a curtain wall 1. The curtain wall 1 also comprises a plurality of curtain wall units 2 arranged side by side on the building 10. The curtain wall units 2 are window units that constitute the curtain wall 1, and are pre-assembled before installation on the building 10. The curtain wall 1 and the curtain wall units 2 are installed at locations on the exterior wall 11 of the building 10, and constitute the exterior wall 11 of the building 10. The curtain wall units 2 are arranged side by side in the up-down direction R and the left-right direction S, and are connected to each other with adjacent curtain wall units 2.

[0013] The curtain wall 1 and the curtain wall unit 2 are disposed on the outdoor side of the skeleton 12 of the building 10 and attached to the skeleton 12 of the building 10. In this state, the curtain wall 1 and the curtain wall unit 2 are located between the indoor part 13 and the outdoor space 14 of the building 10 and are exposed to the outside air. The indoor part 13 is the part that is located inside the building 10. The outdoor space 14 is the space outside the building 10, the curtain wall 1, and the curtain wall unit 2, and the outside air is the air in the outdoor space 14.

[0014] The curtain wall unit 2 comprises two upper and lower panels 2A and 2B, and a frame 3 surrounding the panels 2A and 2B. The panels 2A and 2B are rectangular glass panels (for example, plate glass, double glazing, or laminated glass) and are disposed inside the frame 3 (at openings 3A and 3B) and held by the frame 3. The panels 2A and 2B are fixed panels and are fixed to the rectangular openings 3A and 3B of the frame 3 to close the openings 3A and 3B of the frame 3.

[0015] The frame 3 is a square opening frame (window frame) that is disposed on the outdoor side of the skeleton 12 of the building 10 and attached to the skeleton 12 of the building 10. The frame bodies 3 of the multiple curtain wall units 2 are installed side by side in the up-down direction R and the left-right direction S, and are each connected to the frame bodies 3 of adjacent curtain wall units 2. The frame body 3 has four frames 4-6 (an upper frame 4, a lower frame 5, and a pair of vertical frames 6) and a crossbeam 7 that are combined with each other, and the frames 4-6 and the crossbeam 7 form two upper and lower openings 3A and 3B.

[0016] The upper frame 4, the lower frame 5, and the crossbeam 7 are horizontal frame members extending in the horizontal direction (left-right direction S), and the pair of vertical frames 6 are vertical frame members extending in the vertical direction (up-down direction R). The upper frame 4 and the lower frame 5 are located at the upper and lower parts of the frame body 3, and the pair of vertical frames 6 are located on the left and right sides of the frame body 3. The ends of the upper frame 4, the lower frame 5, and the left and right vertical frames 6 are connected to each other to form a frame of the frames 4 to 6. The crossbeam 7 is an intermediate frame located in the middle of the frame body 3 in the up-down direction R, and is located between the upper frame 4 and the lower frame 5 and connected to the pair of vertical frames 6. The crossbeam 7 is installed on the pair of left and right vertical frames 6, and divides the inside of the frame body 3 (openings 3A, 3B) into upper and lower parts, and is located between the upper and lower openings 3A and 3B.

[0017] One of the upper and lower openings 3A, 3B of the frame body 3 is an upper opening (upper opening) and is formed in the upper part of the frame body 3 by an upper frame 4, a pair of vertical frames 6, and a lintel 7. One of the upper and lower panels 2A, 2B is an upper panel (upper panel), is disposed in the opening 3A of the frame body 3, and is held by the upper frame 4, a pair of vertical frames 6, and a lintel 7. The other of the upper and lower openings 3A, 3B is a lower opening (lower opening) and is formed in the lower part of the frame body 3 by a lower frame 5, a pair of vertical frames 6, and a lintel 7. The other of the upper and lower panels 2A, 2B is a lower panel (lower panel), is disposed in the opening 3B of the frame body 3, and is held by the lower frame 5, a pair of vertical frames 6, and a lintel 7.

[0018] The frames 4 to 6 and the transom 7 of the frame body 3 are frame materials (frame components) that make up the frame body 3, and are each made of a metal (for example, aluminum alloy) shaped material formed by extrusion molding. The upper panel 2A is held on the indoor side above the transom 7 by the upper frame 4, a pair of vertical frames 6, and the transom 7, and is held on the outdoor side by battens attached to each of the upper frame 4, a pair of vertical frames 6, and the transom 7. The lower panel 2B is held on the indoor side below the transom 7 by the lower frame 5, a pair of vertical frames 6, and the transom 7, and is held on the outdoor side by battens attached to each of the lower frame 5, a pair of vertical frames 6, and the transom 7.

[0019] The upper frame 4 and the battens attached to the upper frame 4 hold the edge (upper edge) of panel 2A, and the lower frame 5 and the battens attached to the lower frame 5 hold the edge (lower edge) of panel 2B. The battens 7 and the battens attached to the battens 7 hold the edge (lower edge) of panel 2A and also hold the edge (upper edge) of panel 2B. The pair of vertical frames 6 and the battens attached to the pair of vertical frames 6 hold the left and right edges (vertical edges) of panel 2A and also hold the left and right edges (vertical edges) of panel 2B.

[0020] FIG. 4 is a cross-sectional view showing the curtain wall 1 of the first embodiment taken along line X1-X1 in FIG. 1, and shows adjacent portions of two curtain wall units 2 on the left and right. As shown in the figure, a plurality of curtain wall units 2 and frames 3 are installed side by side in the left-right direction S on the exterior wall 11 of a building 10. The left and right curtain wall units 2 and frames 3 installed side by side in the left-right direction S are adjacent to each other in the left-right direction S.

[0021] The vertical frames 6 of the left and right curtain wall units 2 adjacent in the left-right direction S are arranged at an interval in the left-right direction S, adjacent to each other in the left-right direction S, and facing each other in the left-right direction S. In addition, the vertical frames 6 are connected to other vertical frames 6 adjacent in the left-right direction S (vertical frames 6 of other curtain wall units 2 installed side by side in the left-right direction S). In each of the curtain wall units 2, the vertical frames 6 are located on the indoor side of the panels 2A, 2B (only panel 2B is shown in FIG. 4), and the panels 2A, 2B are arranged on the outdoor side of the vertical frames 6.

[0022] The curtain wall unit 2 includes a vertical frame 6, which is a frame material that holds the panels 2A and 2B on the indoor side, a batten 20 that holds the panels 2A and 2B on the outdoor side, a cover 30 that covers the batten 20 on the outdoor side, and a heat insulating material 40 provided between the batten 20 and the cover 30. The batten 20 is a vertical batten extending in the vertical direction (up-down direction R) and is located on the outdoor side of the vertical frame 6 and the panels 2A and 2B. The panels 2A and 2B (vertical edge portions) are disposed between the vertical frame 6 and the batten 20 in the indoor-outdoor direction T and are held between the vertical frame 6 and the batten 20. The cover 30 is a vertical cover that extends in the vertical direction, and is attached to the batten 20 via two heat insulating materials 40, and is provided next to the batten 20 over the entire longitudinal direction (up-down direction R) of the vertical frame 6. The heat insulating material 40 is sandwiched between the cover 30 and the batten 20.

[0023] When the curtain wall units 2 are installed side by side on the building 10 (exterior wall 11), a joint space 50 that is open toward the outdoor side of the curtain wall unit 2 is formed between the vertical frames 6, the battens 20, and the covers 30 of the adjacent curtain wall units 2. Here, the joint space 50 is a vertical joint space extending vertically, and is formed by the curtain wall units 2 installed side by side in the left-right direction S. The curtain wall units 2 adjacent in the left-right direction S form the joint space 50 by their vertical frames 6, battens 20, and covers 30 adjacent in the left-right direction S. The joint space 50 is a space (gap) formed in the joint (vertical joint) between the vertical frames 6, battens 20, and covers 30 of the adjacent curtain wall units 2, and is open toward the outdoor space 14. The vertical frames 6, battens 20, and covers 30 of the adjacent curtain wall units 2 form the joint space 50 between each other and face each other with the joint space 50 in between.

[0024] The vertical frame 6 has an outdoor wall portion 6A arranged facing the outdoor side, an indoor side holding portion 6B that holds the panels 2A and 2B on the indoor side, and a protruding wall portion 6C that protrudes toward the outdoor side. The outdoor wall portion 6A is a visible portion on the outdoor side of the vertical frame 6, and the indoor side holding portion 6B is a part of the outdoor wall portion 6A. The outdoor wall portion 6A and the indoor side holding portion 6B are located on the indoor side of the panels 2A and 2B (the indoor side surfaces of the panels 2A and 2B), are arranged along the visible direction (left-right direction S) of the vertical frame 6, and face the panels 2A and 2B in the indoor-outdoor direction T. A backup material 6D and a sealing material 6E are sandwiched between the indoor side holding portion 6B and the panels 2A and 2B. The protruding wall portion 6C protrudes from the outdoor wall portion 6A toward the outdoor side and is arranged to face the end faces of the panels 2A and 2B in the visible direction of the vertical frame 6.

[0025] The batten 20 is attached to the protruding wall portion 6C of the vertical frame 6 and is arranged from the vertical frame 6 to the outdoor side of the panels 2A and 2B. The batten 20 also has an outdoor side holding portion 20A that holds the panels 2A and 2B on the outdoor side, and a mounting piece 20B that protrudes from the outdoor side holding portion 20A toward the indoor side. The mounting piece 20B is located on the opposite side of the panels 2A and 2B from the protruding wall portion 6C of the vertical frame 6 in the viewing direction of the vertical frame 6, and covers the protruding wall portion 6C of the vertical frame 6. The protruding wall portion 6C of the vertical frame 6 is located between the mounting piece 20B of the batten 20 and the panels 2A and 2B, and is shielded by the batten 20. The mounting piece 20B is arranged along the indoor / outdoor direction T, engaged with the protruding wall portion 6C of the vertical frame 6, and attached to the protruding wall portion 6C and the vertical frame 6.

[0026] The outdoor retaining portion 20A of the batten 20 is located on the outdoor side of the panels 2A, 2B (the outdoor sides of the panels 2A, 2B) and the vertical frame 6, and is arranged along the viewing direction of the vertical frame 6, facing the panels 2A, 2B in the indoor-outdoor direction T. A gasket 60 is sandwiched between the outdoor retaining portion 20A and the panels 2A, 2B. The panels 2A, 2B are arranged between the indoor retaining portion 6B of the vertical frame 6 and the outdoor retaining portion 20A of the batten 20 in the indoor-outdoor direction T, and are held between the indoor retaining portion 6B of the vertical frame 6 and the outdoor retaining portion 20A of the batten 20.

[0027] The cover 30 is a shielding material that shields the edge 20 and the insulating material 40, and is located on the outdoor side of the edge 20 and the insulating material 40. The insulating material 40 is an elastically deformable member having an insulating function, and is in contact with the edge 20 and the cover 30. The cover 30 is connected to the edge 20 with the insulating material 40 interposed between the edge 20 and the cover 30, and covers the edge 20 and the insulating material 40 on the outdoor side. The cover 30 and the insulating material 40 are provided over the entire longitudinal direction (up-down direction R) of the edge 20, and the insulating material 40 is interposed between the edge 20 and the cover 30 over the entire longitudinal direction of the edge 20. Due to the insulating material 40, the cover 30 is arranged apart from the edge 20 without contacting the edge 20 over the entire length. Furthermore, the insulating material 40 inhibits heat transfer between the cover 30 and the edge 20.

[0028] Here, the cover 30 is connected to the edge 20 at a position on the outdoor side of the panels 2A and 2B, with two heat insulating materials 40 interposed between the cover 30 and the edge 20. The heat insulating materials 40 are rubber heat insulating materials (heat insulating rubber). The cover 30 is located between the edge 20 and the outdoor space 14, and forms a space 70 (air layer) between the cover 30 and the outdoor holding part 20A of the edge 20. The heat insulating materials 40 are disposed in the space 70 between the cover 30 and the outdoor holding part 20A of the edge 20, and the space 70 is sealed by the two heat insulating materials 40. The cover 30 is disposed along the edge 20 (the outdoor holding part 20A, the outdoor part of the mounting piece 20B) and covers and shields the edge 20 and the heat insulating materials 40 on the outdoor side.

[0029] Fig. 5 is a cross-sectional view showing the peripheral portion of the batten 20 and the cover 30 of the curtain wall unit 2 of the first embodiment, and shows an enlarged portion of Fig. 4. Fig. 5 shows one of the curtain wall units 2 adjacent to each other in the left-right direction S. As shown in the figure, when the curtain wall units 2 are installed side by side on the building 10, a joint space 50 that is open toward the outdoors is formed between the covers 30 of adjacent curtain wall units 2. The curtain wall unit 2 is provided with a sealing material 80 that seals the joint space 50, and the sealing material 80 seals the joint space 50 at a location on the outdoors side of the panels 2A and 2B.

[0030] The blocking material 80 is an elastic material made of rubber, and is attached to the cover 30 and protrudes from the cover 30 toward the joint space 50. Here, the blocking material 80 is attached to one of the covers 30 of the adjacent curtain wall units 2, protrudes from one cover 30 toward the other cover 30, and contacts the other cover 30 (see FIG. 4). The blocking material 80 divides the joint space 50 in the indoor / outdoor direction T and blocks the joint space 50 at a location between the covers 30 of the adjacent curtain wall units 2. The blocking material 80 blocks the outside air flowing into the joint space 50, and inhibits the flow of outside air into the joint space 50. This makes it difficult for outside air to flow into a location on the indoor side of the blocking material 80 in the joint space 50, and the area of ​​each of the vertical frame 6 and the batten 20 in contact with the outside air is reduced. As a result, the vertical frame 6 and the batten 20 are less likely to be cooled by the outside air.

[0031] The batten 20 has two connecting parts 20C to which the cover 30 is connected. The insulating material 40 is attached to the connecting parts 20C, and the cover 30 is connected to the connecting parts 20C with the insulating material 40 interposed between the connecting parts 20C and the cover 30. The connecting parts 20C protrude from the outdoor side retaining part 20A to the outdoor side and are located on the outdoor side of the outdoor side retaining part 20A. The two connecting parts 20C are formed apart in the view direction of the vertical frame 6, and the two insulating materials 40 are arranged apart in the view direction of the vertical frame 6 while being attached to the connecting parts 20C. The connecting parts 20C and the insulating materials 40 are arranged between the cover 30 and the outdoor side retaining part 20A of the batten 20 (space 70) and are covered by the cover 30 on the outdoor side.

[0032] The cover 30 has an outdoor surface portion 30A located at the front on the outdoor side, an indoor piece portion 30B protruding to the indoor side, and two engagement portions 30C connected to the connecting portion 20C of the edge 20 via the heat insulating material 40. The outdoor surface portion 30A is the outdoor surface portion (front portion) of the cover 30, and is arranged along the viewing direction of the vertical frame 6. The outdoor surface portion 30A is located on the outdoor side of the outdoor retaining portion 20A of the edge 20, and faces the outdoor retaining portion 20A of the edge 20 in the indoor / outdoor direction T. The outdoor surface portion 30A is arranged at a distance from the outdoor retaining portion 20A of the edge 20 to the outdoor side, forming a space 70 between the outdoor retaining portion 20A of the edge 20. The connecting portion 20C of the edge 20, the heat insulating material 40, and the engagement portion 30C are arranged between the outdoor surface portion 30A and the outdoor retaining portion 20A of the edge 20 in the indoor / outdoor direction T.

[0033] The indoor piece 30B of the cover 30 protrudes from the outdoor surface 30A toward the indoor side, and is disposed apart from the heat insulating material 40, the outdoor side retaining portion 20A of the batten 20, and the mounting piece 20B of the batten 20 (here, the outdoor side portion of the mounting piece 20B connected to the outdoor side retaining portion 20A). The heat insulating material 40, the outdoor side retaining portion 20A, and the mounting piece 20B are located on the panel 20A, 20B side with respect to the indoor piece 30B, and are covered by the indoor piece 30B. The joint space 50 is formed between the indoor piece 30B of the cover 30 of the adjacent curtain wall unit 2. The blocking material 80 is attached to the indoor piece 30B of the cover 30, and protrudes from the indoor piece 30B of the cover 30 toward the joint space 50.

[0034] The engaging portion 30C of the cover 30 engages with the insulating material 40 and the connecting portion 20C of the batten 20, and is connected to the connecting portion 20C via the insulating material 40. In the view direction of the vertical frame 6, the two connecting portions 20C and the two insulating materials 40 are located between the two engaging portions 30C and are covered by the two engaging portions 30C on both sides. The insulating material 40 is provided in the entire area between the engaging portion 30C and the connecting portion 20C, and is sandwiched between the engaging portion 30C and the connecting portion 20C. The engaging portion 30C engages with the insulating material 40 attached to the connecting portion 20C so as to be slidable in the longitudinal direction of the vertical frame 6, and is connected to the connecting portion 20C with the insulating material 40 interposed between the engaging portion 30C and the connecting portion 20C. The engaging portion 30C and the cover 30 are restricted from moving in directions other than the longitudinal direction of the vertical frame 6 (view direction of the vertical frame 6, indoor / outdoor direction T) by the connecting portion 20C and the insulating material 40.

[0035] The connecting portion 20C of the ridge 20 and the insulating material 40 are provided over the entire longitudinal direction of the ridge 20, and the insulating material 40 is attached to the connecting portion 20C over the entire longitudinal direction of the ridge 20. The engaging portion 30C of the cover 30 slides in the longitudinal direction of the vertical frame 6 relative to the insulating material 40 attached to the connecting portion 20C, and engages with the insulating material 40 attached to the connecting portion 20C. The insulating material 40 is interposed between the engaging portion 30C and the connecting portion 20C over the entire longitudinal direction of the vertical frame 6, and the engaging portion 30C is connected to the connecting portion 20C with the insulating material 40 interposed over the entire longitudinal direction of the vertical frame 6.

[0036] The connecting portion 20C of the batten 20 has a protruding piece 20D protruding to the outdoor side, an end piece 20E connected to the protruding piece 20D, and an installation groove 20F to which the heat insulating material 40 is attached. The protruding piece 20D protrudes from the outdoor holding portion 20A of the batten 20 toward the outdoor side and is located between the outdoor holding portion 20A and the end piece 20E. The end piece 20E protrudes from the outdoor end of the protruding piece 20D toward both sides in the viewing direction of the vertical frame 6. The protruding piece 20D is the groove bottom of the installation groove 20F, and the portion of the outdoor holding portion 20A that is continuous with the protruding piece 20D (the portion on the end side of the outdoor holding portion 20A) and the end piece 20E are a pair of groove walls of the installation groove 20F. The mounting groove 20F is formed in a concave shape (groove shape) by the protrusion 20D, a portion continuing to the protrusion 20D of the outdoor holding part 20A, and the end piece 20E, and extends in the longitudinal direction of the vertical frame 6. Therefore, the connecting part 20C includes a portion continuing to the protrusion 20D of the outdoor holding part 20A, which is part of the mounting groove 20F. The end of the outdoor holding part 20A is the end of the outdoor holding part 20A in the viewing direction of the vertical frame 6, and the two connecting parts 20C are located on both end sides of the outdoor holding part 20A.

[0037] The heat insulating material 40 has an indoor fitting portion 40A, an engagement groove portion 40B formed in the fitting portion 40A, and a sliding processing portion 40C, and is attached to the connecting portion 20C by surrounding the connecting portion 20C including the mounting groove portion 20F. The fitting portion 40A is inserted into the inside of the mounting groove portion 20F and arranged inside the mounting groove portion 20F. As a result, the fitting portion 40A is fitted into the inside of the mounting groove portion 20F and attached to the mounting groove portion 20F. In this state, the outer surface of the fitting portion 40A contacts the inner surface of the mounting groove portion 20F, and the mounting groove portion 20F is filled by the fitting portion 40A. The engagement groove portion 40B is formed in a concave shape (groove shape) and extends in the longitudinal direction of the vertical frame 6. The mounting groove portion 20F and the engagement groove portion 40B are each open toward the outside in the view direction of the vertical frame 6.

[0038] A slip treatment is applied to the contact surface of the insulating material 40 that comes into contact with the cover 30, and a slip treatment portion 40C (the portion of the insulating material 40 marked with a dashed line in FIG. 5) is formed on the contact surface of the insulating material 40. The contact surface of the insulating material 40 is the surface of the insulating material 40 that comes into contact with the cover 30, and the slip treatment is applied to the entire contact surface of the insulating material 40. The slip treatment portion 40C is a low-friction portion that reduces frictional force against the cover 30, and reduces the frictional force acting on the cover 30 that slides against the contact surface of the insulating material 40.

[0039] The sliding treatment portion 40C reduces the frictional force (friction coefficient) between the cover 30 sliding against the contact surface (sliding treatment portion 40C) of the heat insulating material 40 and the contact surface, compared to the frictional force (friction coefficient) between the cover 30 and the contact surface when the sliding treatment portion 40C is not present. Here, the frictional force (friction coefficient) is a kinetic frictional force (dynamic friction coefficient). The sliding treatment portion 40C is a fluororesin coating applied to the contact surface of the heat insulating material 40. After applying a fluororesin liquid to the contact surface of the cover 30, the fluororesin is baked onto the contact surface to form a fluororesin coating (sliding treatment portion 40C) on the contact surface, and the contact surface is subjected to a sliding treatment.

[0040] The engaging portion 30C of the cover 30 has a protrusion 30D protruding to the indoor side, an insertion portion 30E connected to the protrusion 30D, and a fitting groove portion 30F that fits into the thermal insulation material 40. The protrusion 30D protrudes from the outdoor surface portion 30A of the cover 30 toward the indoor side, and is located between the outdoor surface portion 30A and the insertion portion 30E. The insertion portion 30E is a protruding piece (insertion piece) that protrudes toward the thermal insulation material 40 and extends in the longitudinal direction of the vertical frame 6. The insertion portion 30E protrudes from the indoor end of the protrusion 30D toward the inside of the engaging groove portion 40B of the thermal insulation material 40 and the inside of the mounting groove portion 20F of the connecting portion 20C.

[0041] The insertion portion 30E of the engagement portion 30C is inserted into the inside of the engagement groove portion 40B of the heat insulating material 40 attached to the connecting portion 20C and engages with the engagement groove portion 40B. When the engagement portion 30C of the cover 30 is connected to the connecting portion 20C of the pressing edge 20, the insertion portion 30E is inserted into the end portion of the engagement groove portion 40B from the outside of the longitudinal direction of the engagement groove portion 40B, and slides inside the engagement groove portion 40B in the longitudinal direction of the engagement groove portion 40B (the longitudinal direction of the vertical frame 6) to engage with the engagement groove portion 40B. In this state, the outer surface of the insertion portion 30E contacts the inner surface of the engagement groove portion 40B, and the engagement groove portion 40B is filled by the insertion portion 30E. The insertion portion 30E is disposed inside the engagement groove portion 40B, fits into the engagement groove portion 40B, and engages with the engagement groove portion 40B so as to be slidable in the longitudinal direction of the vertical frame 6.

[0042] The protrusion 30D is the groove bottom of the fitting groove 30F, and the portion continuing to the protrusion 30D of the outdoor surface 30A and the insertion portion 30E are a pair of groove walls of the fitting groove 30F. The fitting groove 30F of the engagement portion 30C is formed into a concave shape (groove shape) by the protrusion 30D, the portion continuing to the protrusion 30D of the outdoor surface 30A, and the insertion portion 30E, and extends in the longitudinal direction of the vertical frame 6. Therefore, the engagement portion 30C includes a portion continuing to the protrusion 30D of the outdoor surface 30A, which is part of the fitting groove 30F. The fitting groove 30F is open toward the inside in the view direction of the vertical frame 6. The insulating material 40 attached to the connecting portion 20C (here, the portion of the insulating material 40 attached to the end piece portion 20E of the connecting portion 20C) is inserted into the inside of the fitting groove portion 30F and disposed inside the fitting groove portion 30F. As a result, the fitting groove portion 30F fits into the insulating material 40. In this state, the outer surface of the insulating material 40 contacts the inner surface of the fitting groove portion 30F, and the fitting groove portion 30F is filled with the insulating material 40. The engaging portion 30C of the cover 30 engages with the engaging portion 30C of the pressing edge 20 by the engagement of the insertion portion 30E with the engaging groove portion 40B and the fitting of the fitting groove portion 30F into the insulating material 40.

[0043] The curtain wall unit 2 includes a gasket 60 sandwiched between the panels 2A, 2B and the batten 20. The gasket 60 is a sealing material that seals between the panels 2A, 2B and the batten 20, and is attached to the end portion of the batten 20. The gasket 60 is located on the outdoor side of the panels 2A, 2B and is sandwiched between the outdoor side of the panels 2A, 2B and the outdoor retaining portion 20A of the batten 20. On the outdoor side of the portion of the gasket 60 that contacts the panels 2A, 2B, the batten 20 and the cover 30 (here, the outdoor retaining portion 20A of the batten 20 and the engagement portion 30C of the cover 30) are arranged with a gap between them. The gap is formed between the batten 20 and the cover 30, and is open at the end of the batten 20. The heat insulating material 40 is arranged in the gap between the batten 20 and the cover 30.

[0044] The gasket 60 has a protruding portion 60A that protrudes toward the outdoor side. The protruding portion 60A covers the area between the edge 20 and the cover 30 (the gap and the heat insulating material 40 arranged in the gap), and in this state, is in contact with the edge 20 and the cover 30. The protruding portion 60A also protrudes from the outdoor side retaining portion 20A of the edge 20 beyond the area between the edge 20 and the cover 30 to the engaging portion 30C of the cover 30. The outdoor side retaining portion 20A of the edge 20 is located on the indoor side of the area between the edge 20 and the cover 30, and the engaging portion 30C of the cover 30 is located on the outdoor side of the area between the edge 20 and the cover 30. The protruding portion 60A contacts the outdoor side retaining portion 20A of the edge 20 and the engaging portion 30C of the cover 30 while covering the area between the edge 20 and the cover 30 on the outdoor side of the panels 20A and 20B. The protruding portion 60A blocks the area between the ridge 20 and the cover 30, preventing outside air from flowing into the area between the ridge 20 and the cover 30.

[0045] The upper frame 4, lower frame 5, and batten 7, which are frame materials, each have a configuration similar to that of the vertical frame 6. Furthermore, a batten is attached to each of the upper frame 4, lower frame 5, and batten 7, and a cover is connected to each of the battens with an insulating material interposed therebetween. The battens attached to each of the upper frame 4, lower frame 5, and batten 7 have a configuration similar to that of the batten 20 attached to the vertical frame 6, and the covers connected to each of the battens have a configuration similar to that of the cover 30 connected to the batten 20. Each of the insulating materials interposed between the cover and the batten has a configuration similar to that of the insulating material 40 interposed between the cover 30 and the batten 20.

[0046] Therefore, in the following, explanations regarding the frame materials (upper frame 4, lower frame 5, interlining 7), battens, covers, and insulation materials that are the same as those regarding the vertical frame 6, battens 20, covers 30, and insulation material 40 will be omitted, and explanations will be mainly given regarding those that differ from those regarding the vertical frame 6, battens 20, covers 30, and insulation material 40. Also, regarding the frame materials (upper frame 4, lower frame 5, interlining 7), battens, covers, and insulation materials, the same names as those regarding the vertical frame 6, battens 20, covers 30, and insulation material 40 will be used for the configurations that correspond to the configurations regarding the vertical frame 6, battens 20, covers 30, and insulation material 40.

[0047] FIG. 6 is a vertical cross-sectional view showing the curtain wall 1 of the first embodiment taken along line X2-X2 in FIG. 1, and shows adjacent portions of two upper and lower curtain wall units 2. As shown in the figure, multiple curtain wall units 2 and frames 3 are installed side by side in the vertical direction R on the exterior wall 11 of a building 10. The upper and lower curtain wall units 2 and frames 3 installed side by side in the vertical direction R are adjacent to each other in the vertical direction R. In addition, the lower frame 5 of the upper curtain wall unit 2 and the upper frame 4 of the lower curtain wall unit 2 adjacent to each other in the vertical direction R are arranged with a gap between them in the vertical direction R, are adjacent to each other in the vertical direction R, and face each other in the vertical direction R.

[0048] The curtain wall unit 2 comprises an upper frame 4 which is a frame material that holds the panel 2A on the indoor side, a batten 21 which holds the panel 2A on the outdoor side, a cover 31 which covers the batten 21 on the outdoor side, and a heat insulating material 41 provided between the batten 21 and the cover 31. The curtain wall unit 2 also comprises a lower frame 5 which is a frame material that holds the panel 2B on the indoor side, a batten 22 which holds the panel 2B on the outdoor side, a cover 32 which covers the batten 22 on the outdoor side, and a heat insulating material 42 provided between the batten 22 and the cover 32.

[0049] The battens 21, 22 are horizontal battens (upper battens, lower battens) extending in the horizontal direction (left-right direction S). The upper batten 21 is located on the outdoor side of the panel 2A, and the panel 2A (upper edge) is held between the upper frame 4 and the batten 21 in the indoor-outdoor direction T. The lower batten 22 is located on the outdoor side of the panel 2B, and the panel 2B (lower edge) is held between the lower frame 5 and the batten 22 in the indoor-outdoor direction T. The covers 31, 32 are horizontal covers (upper cover, lower cover) extending in the horizontal direction. The cover 31, which is the upper cover, is provided adjacent to the batten 21 over the entire longitudinal direction (left-right direction S) of the upper frame 4, and the cover 32, which is the lower cover, is provided adjacent to the batten 22 over the entire longitudinal direction (left-right direction S) of the lower frame 5.

[0050] When the curtain wall units 2 are installed side by side on the building 10 (exterior wall 11), a joint space 51 that is open toward the outside is formed between the upper frame 4 and the lower frame 5, between the battens 21 and 22, and between the covers 31 and 32 of the adjacent curtain wall units 2. Here, the joint space 51 is a horizontal joint space extending horizontally, and is formed by the curtain wall units 2 installed side by side in the up-down direction R. The joint space 51 is a space (gap) formed in the joint (horizontal joint) between the upper frame 4 and the lower frame 5, between the battens 21 and 22, and between the covers 31 and 32 of the adjacent curtain wall units 2. The upper frame 4 and the lower frame 5, the battens 21 and 22, and the covers 31 and 32 of the adjacent curtain wall units 2 form a joint space 51 between each other and face each other with the joint space 51 between them.

[0051] The top frame 4 has an outdoor wall portion 4A, an indoor side holding portion 4B that holds the panel 2A on the indoor side, and a protruding wall portion 4C. The indoor side holding portion 4B is located on the outdoor side of the outdoor wall portion 4A, and the protruding wall portion 4C is arranged opposite the end face of the panel 2A in the view direction (up-down direction R) of the top frame 4. A gasket 4D is sandwiched between the indoor side holding portion 4B and the panel 2A. The batten 21 is arranged from the top frame 4 to the outdoor side of the panel 2A. The batten 21 also has an outdoor side holding portion 21A that holds the panel 2A on the outdoor side, and an attachment piece 21B. The attachment piece 21B is located on the opposite side (upper side) of the panel 2A from the protruding wall portion 4C of the top frame 4 in the view direction of the top frame 4. The outdoor-side retaining portion 21A is disposed along the viewing direction of the upper frame 4, and a gasket 61 is sandwiched between the outdoor-side retaining portion 21A and the panel 2A.

[0052] The lower frame 5 has an outdoor wall portion 5A, an indoor side holding portion 5B that holds the panel 2B on the indoor side, and a protruding wall portion 5C. The indoor side holding portion 5B is a part of the outdoor wall portion 5A, and the protruding wall portion 5C is arranged to face the end face of the panel 2B in the view direction (up-down direction R) of the lower frame 5. A backup material 5D and a sealing material 5E are sandwiched between the indoor side holding portion 5B and the panel 2B. The pressing edge 22 is arranged from the lower frame 5 to the outdoor side of the panel 2B. The pressing edge 22 also has an outdoor side holding portion 22A that holds the panel 2B on the outdoor side, and an attachment piece 22B. The attachment piece 22B is located on the opposite side (lower side) of the panel 2B from the protruding wall portion 5C of the lower frame 5 in the view direction of the lower frame 5. The outdoor-side retaining portion 22A is disposed along the viewing direction of the sill 5, and a gasket 62 is sandwiched between the outdoor-side retaining portion 22A and the panel 2B.

[0053] The covers 31, 32 and the heat insulating materials 41, 42 are provided over the entire longitudinal direction (left-right direction S) of the battens 21, 22, and the covers 31, 32 form spaces 71, 72 (air layers) between the outdoor side retaining parts 21A, 22A of the battens 21, 22. When the curtain wall units 2 are installed side by side in the building 10, a joint space 51 is formed between the covers 31, 32 of the adjacent curtain wall units 2. The curtain wall unit 2 includes a sealing material 81 that seals the joint space 51. Here, the sealing material 81 is attached to the cover 32 of the upper curtain wall unit 2 of the covers 31, 32 of the adjacent curtain wall units 2, protrudes toward the cover 31 of the lower curtain wall unit 2, and contacts the cover 31.

[0054] The battens 21, 22 have two connecting parts 21C, 22C to which the covers 31, 32 are connected. The covers 31, 32 have outdoor surface parts 31A, 32A, indoor pieces 31B, 32B, and two engaging parts 31C, 32C. In the vertical direction R, the two connecting parts 21C, 22C and the two insulating materials 41, 42 are located between the two engaging parts 31C, 32C and are covered by the two engaging parts 31C, 32C on both sides. The curtain wall unit 2 includes gaskets 61, 62 sandwiched between the panels 2A, 2B and the battens 21, 22, and the gaskets 61, 62 have protruding parts 61A, 62A that protrude toward the outdoor side.

[0055] The connecting portions 21C, 22C of the ridges 21, 22 are each configured similarly to the connecting portion 20C of the ridge 20 in the vertical frame 6, and have a protrusion portion, an end piece portion, and an installation groove portion. The insulating materials 41, 42 are each configured similarly to the insulating material 40 in the vertical frame 6, and have a fitting portion, an engagement groove portion, and a sliding processing portion. The engaging portions 31C, 32C of the covers 31, 32 are each configured similarly to the engaging portion 30C of the cover 30 in the vertical frame 6, and have a protrusion portion, an insertion portion, and a fitting groove portion.

[0056] FIG. 7 is a vertical cross-sectional view showing the curtain wall unit 2 of the first embodiment taken along line X3-X3 in FIG. As shown in the figure, the curtain wall unit 2 includes a frame material 7 that holds the panels 2A, 2B on the indoor side, a batten 23 that holds the panels 2A, 2B on the outdoor side, a cover 33 that covers the batten 23 on the outdoor side, and insulation material 43 provided between the batten 23 and the cover 33.

[0057] The batten 23 is a horizontal batten (messenger batten) that extends horizontally (left-right direction S). The batten 23 is located on the outdoor side of the panels 2A and 2B, and the panel 2A (lower edge) and the panel 2B (upper edge) are held between the messenger 7 and the batten 23 in the indoor-outdoor direction T. The cover 33 is a horizontal cover (messenger cover) that extends horizontally, and is provided alongside the batten 23 over the entire longitudinal direction (left-right direction S) of the messenger 7.

[0058] The transom 7 has an outdoor wall portion 7A, upper and lower indoor side holding portions 7B1 and 7B2 that hold the panels 2A and 2B on the indoor side, and a protruding wall portion 7C. Of the upper and lower indoor side holding portions 7B1 and 7B2, the upper indoor side holding portion 7B1 is located above the protruding wall portion 7C and is located on the outdoor side of the outdoor wall portion 7A. A gasket 7D is sandwiched between the indoor side holding portion 7B1 and the panel 2A. Of the upper and lower indoor side holding portions 7B1 and 7B2, the lower indoor side holding portion 7B2 is part of the outdoor wall portion 7A and is located below the protruding wall portion 7C. A backup material 7E and a seal material 7F are sandwiched between the indoor side holding portion 7B2 and the panel 2B. The protruding wall portion 7C is located between the upper and lower panels 2A and 2B in the viewing direction (vertical direction R) of the transom 7, and is arranged to face the end faces of the panels 2A and 2B.

[0059] The batten 23 is disposed from the transom 7 to the outdoor side of each of the panels 2A and 2B. The batten 23 has an outdoor-side holding portion 23A that holds the panels 2A and 2B on the outdoor side, and an attachment piece 23B. The attachment piece 23B is located below the protruding wall portion 7C of the transom 7. The outdoor-side holding portion 23A protrudes from the outdoor-side end of the attachment piece 23B toward both sides of the transom 7 in the find direction, and is disposed along the find direction of the transom 7. Gaskets 63 and 64 are sandwiched between the outdoor-side holding portion 23A and the panels 2A and 2B, respectively. The cover 33 and the heat insulating material 43 are provided over the entire longitudinal direction (left-right direction S) of the batten 23, and the cover 33 forms a space 73 (air layer) between the outdoor-side holding portion 23A of the batten 23.

[0060] The batten 23 has two connecting portions 23C to which the cover 33 is connected. The cover 33 has an outdoor surface portion 33A and two engaging portions 33C, but does not have a portion corresponding to the indoor portions 30B-32B of the other covers 30-32. In the vertical direction R, the two connecting portions 23C and the two insulating materials 43 are located between the two engaging portions 33C and are covered by the two engaging portions 33C on both sides. The curtain wall unit 2 includes gaskets 63 and 64 sandwiched between the panels 2A and 2B, respectively, and the batten 23, and the gaskets 63 and 64 have protruding portions 63A and 64A protruding toward the outdoor side.

[0061] The connecting portion 23C of the ridge 23 is configured similarly to the connecting portion 20C of the ridge 20 in the vertical frame 6, and has a protrusion portion, an end piece portion, and an installation groove portion. The insulating material 43 is configured similarly to the insulating material 40 in the vertical frame 6, and has a fitting portion, an engagement groove portion, and a sliding processing portion. The engaging portion 33C of the cover 33 is configured similarly to the engaging portion 30C of the cover 30 in the vertical frame 6, and has a protrusion portion, an insertion portion, and a fitting groove portion.

[0062] In the curtain wall unit 2 of the first embodiment described above, the covers 30-33 block the outside air, and the heat insulating materials 40-43 can prevent the transfer of heat between the covers 30-33 and the battens 20-23. Therefore, the heat insulating performance of the curtain wall unit 2 can be easily improved. In addition, the heat insulating performance of the curtain wall unit 2 can be secured at low cost. The covers 30-33 are connected to the outdoor side of the battens 20-23, and unlike the battens 20-23, they are not members that directly receive loads from the panels 2A, 2B, etc. Therefore, the covers 30-33 can be used as decorative materials (decorative materials) while ensuring strength with the battens 20-23. The shape or surface treatment of the covers 30-33 can be changed in various ways according to the design of the curtain wall unit 2. By changing the thickness or shape of the heat insulating materials 40-43 according to the heat insulating performance required for the curtain wall unit 2, the heat insulating performance of the curtain wall unit 2 can be secured.

[0063] The protruding portions 60A-64A of the gaskets 60-64 prevent outside air from entering the areas between the battens 20-23 and the covers 30-33, improving the thermal insulation performance of the curtain wall unit 2. The blocking materials 80, 81 also make it difficult for outside air to flow into the joint spaces 50, 51, suppressing cooling of the vertical frames 6, the upper frame 4, the lower frame 5, and the battens 20-22 by the outside air. By applying a sliding treatment to the contact surfaces of the insulating materials 40-43, the engaging portions 30C-33C of the covers 30-33 can be made to slide easily relative to the insulating materials 40-43, and the engaging portions 30C-33C of the covers 30-33 can be easily engaged with the insulating materials 40-43.

[0064] The engaging portions 30C-33C of the covers 30-33 are slid to engage with the insulating materials 40-43 attached to the connecting portions 20C-23C of the ridges 20-23. This allows the engaging portions 30C-33C of the covers 30-33 to be stably connected to the connecting portions 20C-23C of the ridges 20-23 via the insulating materials 40-43, and prevents the covers 30-33 from coming off the ridges 20-23. Even if the ridges 20-23 are removed when replacing the panels 2A, 2B, the covers 30-33 can be maintained connected to the ridges 20-23, preventing the covers 30-33 from coming off the ridges 20-23.

[0065] The fitting portion 40A of the heat insulating material 40 can be stably attached to the fitting groove portion 20F of the connecting portion 20C of the pressing edge 20, and the insertion portion 30E of the engaging portion 30C of the cover 30 can be firmly engaged with the engaging groove portion 40B of the heat insulating material 40. This allows the engaging portion 30C of the cover 30 to be stably connected to the connecting portion 20C of the pressing edge 20 via the fitting portion 40A of the heat insulating material 40. In addition, the shape of the contact portion between the connecting portion 20C of the pressing edge 20 and the heat insulating material 40 and the shape of the contact portion between the engaging portion 30C of the cover 30 and the heat insulating material 40 can be made complex, thereby preventing outside air from flowing between the connecting portion 20C of the pressing edge 20 and the heat insulating material 40 and between the engaging portion 30C of the cover 30 and the heat insulating material 40. These effects can be similarly obtained in the other connecting portions 21C-23C of the ridges 21-23, the engaging portions 31C-33C of the covers 31-33, and the heat insulating materials 41-43.

[0066] Second embodiment Next, a curtain wall unit 2 of a second embodiment will be described. In the curtain wall unit 2 of the second embodiment, the description of the same matters as those in the curtain wall unit 2 of the first embodiment will be omitted, and the description will be mainly focused on the matters different from the curtain wall unit 2 of the first embodiment. In addition, in the curtain wall unit 2 of the second embodiment, the same names and symbols as those in the curtain wall unit 2 of the first embodiment will be used for the configurations corresponding to those in the curtain wall unit 2 of the first embodiment.

[0067] Fig. 8 is a cross-sectional view showing the curtain wall 1 of the second embodiment, and shows adjacent portions of two left and right curtain wall units 2, similar to Fig. 4. Fig. 9 is a cross-sectional view showing the peripheral portion of the batten 20 and cover 30 of the curtain wall unit 2 of the second embodiment, and shows an enlarged portion of Fig. 8. As shown in the figure, the insulation material 40 is a resin bridge (insulation bridge 40D) having an insulating function, which is bridged between the edge 20 and the cover 30 and fixed to the edge 20 and the cover 30. The insulation material 40 (insulation bridge 40D) is formed of a synthetic resin and is located between the edge 20 and the cover 30. The insulation material 40 also protrudes from the edge 20 to the cover 30 toward the outdoor side, and extends in the indoor-outdoor direction T between the edge 20 and the cover 30.

[0068] The cover 30 has a base material 30G connected to the edge 20 by a heat insulating material 40, and a cover material 30H attached to the base material 30G. The base material 30G is the base (cover base) of the cover 30, and is connected to the edge 20 with the heat insulating material 40 interposed between it and the edge 20. The heat insulating material 40 is interposed between the outdoor side holding portion 20A of the edge 20 and the base material 30G of the cover 30 over the entire longitudinal direction of the edge 20. The base material 30G is connected to the outdoor side holding portion 20A of the edge 20 with two heat insulating materials 40 interposed between it and the outdoor side holding portion 20A of the edge 20.

[0069] The connecting portion 20C of the batten 20 is a connecting groove portion formed in a groove shape and is open toward the outdoor side. With the indoor end of the heat insulating material 40 arranged inside the connecting portion 20C, the connecting portion 20C is crimped, and the indoor end of the heat insulating material 40 is fixed to the connecting portion 20C. In addition, the base material 30G of the cover 30 has two fixing portions 30I formed in a groove shape. With the outdoor end of the heat insulating material 40 arranged inside the fixing portion 30I, the fixing portion 30I is crimped, and the outdoor end of the heat insulating material 40 is fixed to the fixing portion 30I.

[0070] The heat insulating material 40 is fixed to the edge 20 and the base material 30G of the cover 30 by crimping, and connects the base material 30G of the cover 30 to the connecting portion 20C of the edge 20. The base material 30G is connected to the connecting portion 20C with the heat insulating material 40 interposed between the base material 30G and the connecting portion 20C. The base material 30G is a component smaller than the edge 20 and the cover material 30H, and the shape of the base material 30G is relatively simple. Therefore, it is relatively easy to connect the base material 30G to the edge 20 by crimping.

[0071] The cover material 30H of the cover 30 is a cover body that covers the ridge 20, and is attached to the base material 30G so as to be slidable in the longitudinal direction of the vertical frame 6, and covers the ridge 20, the heat insulating material 40, and the base material 30G on the outdoor side. The heat insulating material 40 and the base material 30G are disposed between the ridge 20 and the cover material 30H, and are shielded on the outdoor side by the cover 30H. The cover material 30H has an outdoor surface portion 30A, an indoor piece portion 30B, and an opposing piece portion 30J that faces the ridge 20, and has two mounting portions 30K that are attached to the base material 30G instead of the engagement portion 30C of the first embodiment. The base material 30G is disposed between the outdoor surface portion 30A and the outdoor side holding portion 20A of the ridge 20 in the indoor / outdoor direction T.

[0072] The facing piece 30J of the cover material 30H protrudes from the outdoor surface portion 30A toward the indoor side, and is disposed opposite the outdoor retaining portion 20A of the batten 20 in the indoor-outdoor direction T. The indoor piece 30B and the facing piece 30J of the cover material 30H are spaced apart in the view direction of the vertical frame 6, forming a space 70 between them. In the view direction of the vertical frame 6, the base material 30G including the connecting portion 20C of the batten 20, the insulating material 40, and the fixing portion 30I is located between the indoor piece 30B and the facing piece 30J, and is covered by the indoor piece 30B and the facing piece 30J.

[0073] The mounting portion 30K of the cover material 30H is a mounting groove portion formed in a groove shape, and is located on the indoor side of the outdoor surface portion 30A. The two mounting portions 30K are formed apart in the view direction of the vertical frame 6, and sandwich the base material 30G between them. The base material 30G is located between the two mounting portions 30K, and both ends of the base material 30G in the view direction of the vertical frame 6 are respectively arranged inside the mounting portions 30K. The mounting portion 30K slides in the longitudinal direction of the vertical frame 6 relative to the base material 30G (here, the ends of the base material 30G) connected to the batten 20 by the heat insulating material 40, and engages with the base material 30G. As a result, the mounting portion 30K is attached by engaging with the base material 30G so as to be slidable in the longitudinal direction of the vertical frame 6. The mounting portion 30K and the cover material 30H are restricted from moving in any direction other than the longitudinal direction of the vertical frame 6 (the view direction of the vertical frame 6, the indoor / outdoor direction T) by the base material 30G.

[0074] On the outdoor side of the portion of the gasket 60 that contacts the panels 2A and 2B, the bezel 20 and the cover 30 (here, the outdoor-side retaining portion 20A of the bezel 20 and the opposing piece portion 30J of the cover 30) are arranged with a gap between them. On the outdoor side of the panels 20A and 20B, the protruding portion 60A of the gasket 60 protrudes from the outdoor-side retaining portion 20A of the bezel 20 beyond the portion (gap) between the bezel 20 and the cover 30 to the opposing piece portion 30J of the cover 30, covering the portion between the bezel 20 and the cover 30. The opposing piece portion 30J of the cover 30 is located on the outdoor side of the portion between the bezel 20 and the cover 30, and the protruding portion 60A contacts the outdoor-side retaining portion 20A of the bezel 20 and the opposing piece portion 30J of the cover 30. The protruding portion 60A closes the portion between the bezel 20 and the cover 30.

[0075] Fig. 10 is a vertical cross-sectional view showing the curtain wall 1 of the second embodiment, showing the adjacent portions of two upper and lower curtain wall units 2. Fig. 11 is a vertical cross-sectional view showing the curtain wall unit 2 of the second embodiment, showing the peripheral portion of the transom 7 of the curtain wall unit 2. As shown in the figure, in the upper frame 4, lower frame 5, and interlining 7, the insulating materials 41-43 are resin bridges (insulating bridges 41D-43D) and are configured in the same manner as the insulating material 40 in the vertical frame 6. The covers 31-33 are configured in the same manner as the cover 30 in the vertical frame 6, and have base materials 31G-33G and cover materials 31H-33H.

[0076] The connecting portions 21C-23C of the battens 21-23 are configured similarly to the connecting portion 20C of the batten 20 in the vertical frame 6. The base materials 31G-33G of the covers 31-33 are configured similarly to the base material 30G of the cover 30 in the vertical frame 6, and have two fixing portions. In the upper frame 4 and the lower frame 5, the cover materials 31H, 32H of the covers 31, 32 are configured similarly to the cover material 30H of the cover 30 in the vertical frame 6, and have outdoor surface portions 31A, 32A, indoor piece portions 31B, 32B, opposing piece portions 31J, 32J, and two mounting portions.

[0077] In the interlining 7, the cover material 33H of the cover 33 has an outdoor surface portion 33A, two opposing pieces 33J, and two mounting portions. The two opposing pieces 33J are spaced apart in the viewing direction of the interlining 7, forming a space 73 between them. In the viewing direction of the interlining 7, the connecting portion 23C of the ridge 23, the insulating material 43, and the base material 33G including the fixing portion are located between the two opposing pieces 33J and are covered by the two opposing pieces 33J.

[0078] In the curtain wall unit 2 of the second embodiment described above, the protruding length of the insulating material 40-43 (insulating bridge 40D-43D) protruding from the battens 20-23 to the cover 30-33 is adjusted to change the distance between the battens 20-23 and the cover 30-33 in response to the thermal insulation performance required for the curtain wall unit 2. The protruding length of the insulating material 40-43 is the dimension (length) from the battens 20-23 to the cover 30-33 in the insulating material 40-43 in a cross section perpendicular to the longitudinal direction of the frame material (vertical frame 6, upper frame 4, lower frame 5, and interlining 7). Here, the protruding length of the insulating material 40-43 is the dimension of the insulating material 40-43 in the indoor / outdoor direction T, and is the dimension in the width direction perpendicular to the longitudinal direction and thickness direction of the insulating material 40-43. In addition, if the protruding length of the insulating material 40-43 is increased to lengthen the distance between the battens 20-23 and the cover 30-33, the thermal insulation performance is improved. In this way, when the insulating materials 40-43 are the insulating bridges 40D-43D, the insulating performance required for the curtain wall unit 2 can be easily ensured by changing the protruding length of the insulating materials 40-43.

[0079] The cover materials 30H-33H are slid to be attached to the base materials 30G-33G. This allows the cover materials 30H-33H to be stably attached to the base materials 30G-33G, and prevents the cover materials 30H-33H from coming off the base materials 30G-33G. Even if the battens 20-23 are removed when replacing the panels 2A, 2B, the cover materials 30H-33H can be maintained attached to the base materials 30G-33G, and the cover materials 30H-33H can be prevented from coming off the base materials 30G-33G.

[0080] In the above embodiments, an example has been described in which the window body is a curtain wall unit 2, but the present invention is also applicable to window bodies other than the curtain wall unit 2. The frame material is not limited to the upper frame 4, the lower frame 5, the vertical frame 6, and the transom 7, and may be other frame materials. For example, the window body may be a curtain wall that does not use a curtain wall unit 2, or a sash, which is a fixture. The frame material may be a frame material (e.g., vertical ribs) other than the upper frame 4, lower frame 5, vertical frame 6, and transom 7 of the curtain wall unit 2, a frame material of a curtain wall (e.g., a mullion, a transom), or a frame material of a sash (e.g., an upper frame, a lower frame, a vertical frame, a transom, a vertical rib).

[0081] As described above, the present embodiment discloses the window bodies described in the following (1) to (8).

[0082] (1) A window body comprising a panel, a frame material that holds the panel on the indoor side, and a batten that holds the panel on the outdoor side, A window body having a cover that is connected to the ridge with an insulating material interposed between the ridge and the cover, and covers the ridge on the outdoor side. In the window body described in (1), the insulating performance of the window body in which the panel is held on the outdoor side by a batten can be easily improved.

[0083] (2) In the window body described in (1), a gasket sandwiched between the panel and the ridge; The gasket is a window body having a protruding portion that protrudes toward the outside and covers the area between the ridge and the cover. In the window body described in (2), the protruding portion of the gasket prevents outside air from entering the area between the ridge and the cover, thereby improving the insulating performance of the window body.

[0084] (3) In the window body described in (1) or (2), When the window bodies are installed side by side in a building, a joint space that is open toward the outdoors is formed between the covers of the adjacent window bodies, A window body provided with a sealing material attached to the cover for sealing the joint space. In the window body described in (3), the sealing material makes it difficult for outside air to flow into the joint space, thereby suppressing cooling of the frame material and the batten by outside air.

[0085] (4) A window body according to any one of (1) to (3), The ridge has a connecting portion to which the insulating material is attached and to which the cover is connected with the insulating material interposed therebetween, The cover is a window body having an engagement portion that engages with the insulation material attached to the connecting portion so as to be slidable in the longitudinal direction of the frame material and is connected to the connecting portion. In the window body described in (4), the engaging portion of the cover can be stably connected to the connecting portion of the ridge via insulating material, thereby preventing the cover from coming off the ridge.

[0086] (5) In the window body described in (4), The connecting portion has a mounting groove portion extending in the longitudinal direction of the frame material, The heat insulating material has a fitting portion that is fitted into the mounting groove portion and attached to the mounting groove portion, and an engagement groove portion that is formed in the fitting portion and extends in the longitudinal direction of the frame material, The engagement portion is a window body having an insertion portion that is inserted into the inside of the engagement groove and engages with the engagement groove. In the window body described in (5), the engaging portion of the cover can be stably connected to the connecting portion of the ridge via the fitting portion of the insulation. Also, it is possible to prevent outside air from entering between the connecting portion of the ridge and the insulation, and between the engaging portion of the cover and the insulation.

[0087] (6) In the window body described in (4) or (5), A window body having a sliding treatment applied to the contact surface of the insulating material that comes into contact with the cover. In the window body described in (6), the engaging portion of the cover is made to slide easily relative to the insulating material, so that the engaging portion of the cover can be easily engaged with the insulating material.

[0088] (7) A window body according to any one of (1) to (3), The window body, in which the insulating material is a resin insulating bridge that spans between the ridge and the cover. In the window body described in (7), the insulating performance required for the window body can be easily ensured by adjusting the protruding length of the insulating material protruding from the edge to the cover.

[0089] (8) In the window body described in (7), The cover is a window body having a base material connected to the ridge with the insulating material interposed between the base material and the ridge, and a cover material attached to the base material so as to be slidable in the longitudinal direction of the frame material, covering the ridge, the insulating material, and the base material on the outdoor side. In the window body described in (8), the cover material can be stably attached to the base material, and the cover material can be prevented from coming off the base material. [Explanation of symbols]

[0090] 1...Curtain wall, 2...Curtain wall unit, 2A...Panel, 2B...Panel, 3...Frame, 3A...Opening, 3B...Opening, 4...Upper frame, 4A...Outdoor wall section, 4B...Indoor side retaining section, 4C...Projection wall section, 4D...Gasket, 5...Lower frame, 5A...Outdoor wall section, 5B...Indoor side retaining section, 5C...Projection wall section, 5D...Back-up material, 5E...Sealing material, 6...Vertical frame, 6A...Outdoor wall section, 6B...Indoor side retaining section, 6C...Projection wall section, 6D...Back-up material, 6E...Sealing material, 7...None eyes, 7A... outdoor wall section, 7B1... indoor side retaining section, 7B2... indoor side retaining section, 7C... projecting wall section, 7D... gasket, 7E... backup material, 7F... sealing material, 10... building, 11... exterior wall, 12... framework, 13... indoor section, 14... outdoor space, 20... edge, 20A... outdoor side retaining section, 20B... mounting piece, 20C... connecting section, 20D... projecting piece section, 20E... end piece section, 20F... mounting groove section, 21... edge, 21A... outdoor side retaining section, 21B... mounting piece, 21C... connecting section, 22... edge, 22A Outdoor side retaining portion, 22B, mounting piece, 22C, connecting portion, 23, edge, 23A, Outdoor side retaining portion, 23B, mounting piece, 23C, connecting portion, 30, cover, 30A, Outdoor surface portion, 30B, Indoor piece portion, 30C, Engagement portion, 30D, Projection portion, 30E, Insertion portion, 30F, Fitting groove portion, 30G, Base material, 30H, Cover material, 30I, Fixation portion, 30J, Opposing piece portion, 30K, Mounting portion, 31, Cover, 31A, Outdoor surface portion, 31B, Indoor piece portion, 31C, Engagement portion, 31G, Base material material, 31H...cover material, 31J...facing piece, 32...cover, 32A...outdoor surface portion, 32B...indoor surface portion, 32C...engagement portion, 32G...base material, 32H...cover material, 32J...facing piece, 33...cover, 33A...outdoor surface portion, 33C...engagement portion, 33G...base material, 33H...cover material, 33J...facing piece, 40...insulating material, 40A...fitting portion, 40B...engagement groove portion, 40C...sliding portion, 40D...insulating bridge, 41...insulating material, 41D...insulating bridge, 42...insulating material,42D···Insulation bridge, 43···Insulation material, 43D···Insulation bridge, 50···Joint space, 51···Joint space, 60···Gasket, 60A···Protrusion, 61···Gasket, 61A···Protrusion, 62···Gasket, 62A···Protrusion, 63···Gasket, 63A···Protrusion, 64···Gasket, 64A···Protrusion, 70···Space, 71···Space, 72···Space, 73···Space, 80···Sealing material, 81···Sealing material, R···Up-down direction, S···Left-right direction, T···Indoor / outdoor direction. ,

Claims

1. A window body comprising a panel, a frame material that holds the panel on the indoor side, and a batten that holds the panel on the outdoor side, A window body having a cover that is connected to the ridge with an insulating material interposed between the ridge and the cover, and covers the ridge on the outdoor side.

2. 2. The window body according to claim 1, a gasket sandwiched between the panel and the ridge; The gasket is a window body having a protruding portion that protrudes toward the outside and covers the area between the ridge and the cover.

3. 2. The window body according to claim 1, When the window bodies are installed side by side in a building, a joint space that is open toward the outdoors is formed between the covers of the adjacent window bodies, A window body provided with a sealing material attached to the cover for sealing the joint space.

4. 4. The window body according to claim 1, The ridge has a connecting portion to which the insulating material is attached and to which the cover is connected with the insulating material interposed therebetween, The cover is a window body having an engagement portion that engages with the insulation material attached to the connecting portion so as to be slidable in the longitudinal direction of the frame material and is connected to the connecting portion.

5. 5. The window body according to claim 4, The connecting portion has a mounting groove portion extending in the longitudinal direction of the frame material, The heat insulating material has a fitting portion that is fitted into the mounting groove portion and attached to the mounting groove portion, and an engagement groove portion that is formed in the fitting portion and extends in the longitudinal direction of the frame material, The engagement portion is a window body having an insertion portion that is inserted into the inside of the engagement groove and engages with the engagement groove.

6. 5. The window body according to claim 4, A window body having a sliding treatment applied to the contact surface of the insulating material that comes into contact with the cover.

7. 4. The window body according to claim 1, The window body, in which the insulating material is a resin insulating bridge that spans between the ridge and the cover.

8. 8. The window body according to claim 7, The cover is a window body having a base material connected to the ridge with the insulating material interposed between the base material and the ridge, and a cover material attached to the base material so as to be slidable in the longitudinal direction of the frame material, covering the ridge, the insulating material, and the base material on the outdoor side.

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