Curtain wall or sash

Abstract

To provide a curtain wall capable of improving the workability of maintenance work of functional members.SOLUTION: A curtain wall or sash has a top frame, a bottom frame, a pair of vertical frames, and an intermediate cross member crossing the pair of vertical frames. The curtain wall or sash has a first opening formed between the bottom frame and the intermediate cross member and a second opening formed between the top frame and the intermediate cross member. The second opening has a glass, and a functional member is placed on the indoor side of the glass, and a bearing member for supporting the lower edge of the functional member. The bearing member is movable toward the first opening and is detachably supported with respect to the intermediate cross member or the vertical frame so that the functional member is movable from the second opening to the first opening.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to curtain walls or sashes. [Background technology]

[0002] The curtain wall that constitutes the exterior wall of a building is made up of a series of alternating vision and spandrel sections in the vertical direction. The vision section is a window section that faces the living space between the floor and ceiling. The spandrel section is formed between the ceiling of the lower floor and the floor of the upper floor, facing the space at the boundary between the upper and lower floors.

[0003] Patent Document 1 discloses a curtain wall in which a main unit having a fireproof board and a power generation unit having a solar cell panel are attached to a mullion that is the framework of a building. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-172211 Summary of the Invention [Problem to be solved by the invention]

[0005] The power generation unit of Patent Document 1 has a structure in which a glass plate and a solar cell panel arranged on the indoor side of the glass plate are integrally connected by a frame. With this structure, for example, when performing maintenance such as replacing a solar cell panel that has deteriorated over time, it is necessary to remove the entire power generation unit including the glass plate from the outdoor side. This maintenance work requires, for example, the installation of scaffolding on the exterior wall of the building, which is time-consuming. Furthermore, with this structure, the curtain wall temporarily loses its function as an exterior wall during maintenance, and measures against this are also necessary.

[0006] Thus, in a curtain wall, for example, when solar panels are installed in the space inside the room rather than the exterior glass, maintainability becomes an issue. Note that there is also a demand for installing functional components other than power generating materials such as solar panels in this space, such as lighting equipment, advertising boards, or various panel materials for decorating the building, and in such cases maintainability becomes an issue as well. It is also assumed that such functional components will be installed in sashes such as stepped windows with openings lined up above and below, in the same way as in the case of curtain walls, and maintainability becomes an issue in such cases as well.

[0007] The present invention has been made in consideration of the problems with the conventional technology described above, and has an object to provide a curtain wall or sash that can improve the workability of maintenance work on functional components. [Means for solving the problem]

[0008] A curtain wall or sash according to one embodiment of the present invention has an upper frame, a lower frame, a pair of vertical frames, and an intermediate horizontal member spanning the pair of vertical frames, a first opening being formed between the lower frame and the intermediate horizontal member, and a second opening being formed between the upper frame and the intermediate horizontal member, the second opening being provided with glass and a functional member arranged on the interior side of the glass, and a support member supporting a lower edge of the functional member, the support member being movable toward the first opening and being supported detachably relative to the intermediate horizontal member or the vertical frames, thereby enabling the functional member to be moved from the second opening to the first opening. Effect of the Invention

[0009] According to the above-described aspects of the present invention, the workability of the maintenance work for the functional components can be improved. [Brief description of the drawings]

[0010] [Figure 1] This is a front view of a portion of a curtain wall that forms the exterior wall of a building, viewed from the outside. [Diagram 2] FIG. 2 is a vertical cross-sectional view of the curtain wall according to the first embodiment. [Diagram 3] 3 is an enlarged longitudinal sectional view of an intermediate cross member and its surrounding area shown in FIG. 2. [Figure 4] FIG. 3 is a cross-sectional view of the spandrel portion shown in FIG. 2. [Diagram 5] 3 is a vertical cross-sectional view showing an operation of removing the functional member shown in FIG. 2. [Figure 6] FIG. 11 is a vertical cross-sectional view of the curtain wall according to the second embodiment. [Figure 7] 7 is an enlarged longitudinal sectional view of an intermediate cross member and its surrounding area shown in FIG. 6. [Figure 8] FIG. 7 is a cross-sectional view of the spandrel portion shown in FIG. 6. [Figure 9] 7 is a vertical cross-sectional view showing an operation of removing the functional member shown in FIG. 6. [Figure 10] FIG. 11 is an enlarged vertical cross-sectional view of an intermediate horizontal member and its surrounding area of ​​a curtain wall according to a third embodiment. [Figure 11] 11 is a vertical cross-sectional view showing an operation of removing the functional member shown in FIG. 10. [Figure 12] FIG. 11 is an enlarged vertical cross-sectional view of an intermediate horizontal member and its surrounding area of ​​a curtain wall according to a fourth embodiment. [Figure 13] 13 is a vertical cross-sectional view showing an operation of removing the functional member shown in FIG. 12. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A curtain wall or sash according to the present invention will be described in detail below with reference to preferred embodiments and the accompanying drawings.

[0012] In the following, an embodiment of the present invention will be described by taking a curtain wall constituting the exterior wall of a building as an example, but the present invention can also be used for sashes such as stepped windows with openings arranged vertically. In other words, the present invention is suitable for mountings attached to buildings such as curtain walls constituting the exterior wall of a building and sashes installed on the exterior wall of a building. As shown in Figures 1 and 2, a curtain wall 10 according to the first embodiment forms the exterior wall of a building or the like. The curtain wall 10 has a unit structure in which spandrel parts 14 and vision parts 15 are arranged vertically inside a frame body 12. The curtain wall 10 is arranged such that the spandrel parts (second opening) 14 and the vision parts (first opening) 15 are arranged alternately in the vertical direction by arranging each unit vertically and horizontally. The vision parts 15 are window parts that form the exterior wall of a living space. The spandrel parts 14 form the boundary between the upper and lower floors, that is, the exterior wall of the attic space or the underfloor space.

[0013] First, an example of the overall configuration of the curtain wall 10 will be described.

[0014] As shown in Figures 1 to 4, the frame body 12 is formed by a framework of an upper frame 12a, a lower frame 12b, and left and right vertical frames 12c, 12d on all four sides. The frame body 12 further includes an intermediate horizontal member 12e between the upper frame 12a and the lower frame 12b, spanning the left and right vertical frames 12c, 12d. The intermediate horizontal member 12e is sometimes called a "mute". Each of the frames 12a to 12d and the intermediate horizontal member 12e is an extruded member of a metal including, for example, aluminum. The frame body 12 is fixed to the main body using, for example, fasteners 16 (see Figure 4).

[0015] In this application, the "visible direction" refers to the indoor / outdoor direction of the curtain wall 10, that is, the direction from the indoor side to the outdoor side or the opposite direction (the direction indicated by the arrow Z in the figure), and the "visible surface" refers to a surface extending along the visible direction. The "visible direction" refers to a direction perpendicular to the visible direction, and in the case of a vertical frame 12c that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction (the direction indicated by the arrow X in the figure), and in the case of an upper frame 12a that is long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction (the direction indicated by the arrow Y in the figure). The "visible surface" refers to a surface along the visible direction. The "inside of the frame" refers to the inside part of the frame body 12, which is a frame-shaped member. The "outside of the frame" refers to the outside part of the frame body 12, which is a frame-shaped member.

[0016] The spandrel portion 14 is a portion surrounded by the upper frame 12a, the middle horizontal member 12e, and the left and right vertical frames 12c, 12d. The spandrel portion 14 is provided with glass 18, a functional member 20 disposed on the indoor side of the glass 18, and a fireproof board 22 disposed on the indoor side of the functional member 20. The glass 18 is formed, for example, of a float glass plate, and is disposed on the outermost side of the spandrel portion 14. The functional member 20 is, for example, a film-like or sheet-like solar cell (power generating material). The functional member 20 may be a material other than a power generating material, and examples of the functional member 20 include lighting equipment, advertising boards, and various panel materials for building decoration. The fireproof board 22 is a board for heat insulation and fire resistance, for example, a calcium silicate board. The connection portion between the fireproof board 22 and the frame body 12 and the surrounding area are sealed with a fireproof material 24 formed, for example, of a sprayed rock wall (see FIG. 4).

[0017] The vision section 15 is the area surrounded by the middle horizontal member 12e, the bottom frame 12b, and the left and right vertical frames 12c, 12d. The vision section 15 is provided with a double-glazed glass 26, which is made up of two pieces of glass 26a, 26b arranged with a spacer in between. The glasses 26a, 26b are made of, for example, float glass sheets. The double-glazed glass 26 is disposed on the outermost side of the vision section 15.

[0018] As shown in Fig. 2, the upper frame 12a extends horizontally and connects the upper ends of the left and right vertical frames 12c, 12d. The upper frame 12a has, in order from the outside to the inside of the room on the front surface facing the inside of the frame, an opening groove 28, a protruding piece 29, and an opening groove 30. The opening grooves 28, 30 are downward grooves. The upper edge of the glass 18 is inserted and held in the opening groove 28. The upper edge of the fireproof board 22 is inserted and held in the opening groove 30. The protruding piece 29 is a fin-shaped plate piece protruding downward. The protruding piece 29 engages a holding frame 54 (upper holding frame 54a) that holds the outer peripheral edge of the functional member 20 described later, and positions it in the front direction.

[0019] The bottom frame 12b extends horizontally and connects the lower ends of the left and right vertical frames 12c, 12d. The bottom frame 12b has an opening groove 32 at the outdoor end of the visible surface facing the inside of the frame. The opening groove 32 is an upwardly facing groove. The lower edge of the double-glazed glass 26 is inserted and held in the opening groove 32. A frame material 33 is connected to the indoor end of the bottom frame 12b. The frame material 33 connects the bottom frame 12b to a floor 34, which has a floor plate provided on a floor slab attached to the building frame.

[0020] As shown in FIG. 4, the left and right vertical frames 12c, 12d extend in the up-down direction. The vertical frames 12c, 12d have an opening groove 36, a protruding piece 37, and an opening groove 38, in that order, from the outside of the room to the inside of the room on the front surface facing the inside of the frame. The opening grooves 36, 38 are horizontal grooves. The side edge of the glass 18 is inserted and held in the opening groove 36. The side edge of the fireproof board 22 is inserted and held in the opening groove 38. The protruding piece 37 is a fin-shaped plate piece protruding horizontally, and engages with the holding frame 54 (vertical holding frames 54c, 54d) described later to position it in the front direction. A plurality of screws 39 shown in FIG. 4 fasten the vertical frames 12c, 12d to the horizontal frames (upper frame 12a, lower frame 12b, or intermediate horizontal member 12e).

[0021] As shown in Fig. 2, the intermediate horizontal member 12e extends in the horizontal direction and connects the left and right vertical frames 12c, 12d between the upper frame 12a and the lower frame 12b. The intermediate horizontal member 12e has a divided structure having a first horizontal member 40 and a second horizontal member 42. A support member 41 is provided between the horizontal members 40, 42 so as to be detachable and relatively movable in the up-down direction. The detailed configurations of the horizontal members 40, 42 and the support member 41 will be described later.

[0022] The intermediate horizontal member 12e has an opening groove 44, a protruding piece 45, and an opening groove 46, in this order from the exterior side of the upward facing visible surface to the interior side. The opening grooves 44 and 46 are upward facing grooves. The lower edge of the glass 18 is inserted and held in the opening groove 44. The lower edge of the fireproof board 22 is inserted and held in the opening groove 46. The protruding piece 45 is a fin-shaped plate piece protruding upward, and a retaining frame 54 (lower retaining frame 54b) described later is fastened to it. The intermediate horizontal member 12e has an opening groove 48 at the exterior end of the downward facing visible surface. The opening groove 48 is a downward facing groove, and the upper edge of the double-glazed glass 26 is inserted and held in it. A blind box 49 is connected to the interior end of the intermediate horizontal member 12e. The upper end of the blind 49a installed in the vision unit 15 is attached to the blind box 49 (see FIG. 5). A ceiling panel 50 is connected to the indoor end of the blind box 49 .

[0023] Between adjacent units of the curtain wall 10, water is prevented from entering by crimping the primary seals 51, 51 on the outside between the upper frame 12a and the lower frame 12b and by crimping the secondary seals 52, 52 on the inside between them (see FIG. 2). Water is also prevented from entering between the vertical frames 12c and 12d by the primary seals 51 and secondary seals 52 (see FIG. 4).

[0024] As shown in Fig. 2, the functional member 20 is installed in an enclosed space in the spandrel portion 14 surrounded by the upper frame 12a, the lower frame 12b, the glass 18, and the fireproof board 22. As described above, the functional member 20 in this embodiment is a power generating material made up of solar cells, and generates electricity when it receives light that has passed through the glass 18. The functional member 20 is formed, for example, in the form of a thin film or sheet, and therefore has poor self-supporting ability. Therefore, the outer peripheral edge portion (four peripheral edges) of the functional member 20 is held by a holding frame 54.

[0025] As shown in Figures 2 to 4, the holding frame 54 is formed by a framework of an upper holding frame 54a, a lower holding frame 54b, and left and right vertical holding frames 54c and 54d on all four sides. Each of the holding frames 54a to 54d is an extruded material of metal including aluminum, for example. Each of the holding frames 54a to 54d has the same cross-sectional shape. Each of the holding frames 54a to 54d has an engagement groove 56 on the projection surface on the outside of the frame and a holding groove 57 on the projection surface on the inside of the frame.

[0026] The engagement grooves 56 of the upper holding frame 54a can be engaged with and disengaged from the protruding pieces 29 of the upper frame 12a (see Figs. 2 and 5). The upper holding frame 54a is positioned in the projection direction by engaging with the protruding pieces 29. The engagement grooves 56 of the lower holding frame 54b are engaged with the protruding pieces 45 of the intermediate cross member 12e and fastened and fixed using screws 58. The screws 58 may be provided at multiple positions in the longitudinal direction (X direction) of the lower holding frame 54b. The engagement grooves 56 of the vertical holding frames 54c, 54d are engaged with the protruding pieces 37 of the vertical frames 12c, 12d, respectively, to position the functional member 20 in the projection direction and are guided movably along the vertical direction. The edges of the functional members 20 are inserted into each holding groove 57 and held via, for example, a rubber gasket.

[0027] Next, a specific example of the configuration of the intermediate horizontal member 12e and the support member 41 will be described.

[0028] As described above, the intermediate horizontal member 12e of this embodiment has a divided structure including the first horizontal member 40 and the second horizontal member 42. The support member 41 is provided between the horizontal members 40, 42 so as to be detachable and relatively movable in the up-down direction. Therefore, the intermediate horizontal member 12e can also be called a three-division structure in which the support member 41 is attached between the horizontal members 40, 42.

[0029] As shown in FIG. 3, the first horizontal member 40 is disposed on the outermost side of the intermediate horizontal member 12e and has an overall substantially rectangular cross-sectional shape. The first horizontal member 40 has both ends (small end faces) in the longitudinal direction fixed to the vertical frames 12c, 12d with screws 39. The first horizontal member 40 has a hollow portion 40a having a substantially rectangular cross-section, connecting pieces 40b, 40c, and an engagement piece 40d. The connecting pieces 40b, 40c are arranged vertically on the exterior facing surface of the first horizontal member 40. The upper connecting piece 40b protrudes to the exterior side and is connected to a ledge 60 having a substantially L-shaped cross-section. The connecting piece 40b and the ledge 60 form an opening groove 44 that holds the lower edge of the glass 18. The lower connecting piece 40c is connected to a ledge 61 having a substantially L-shaped cross-section. The connecting piece 40c and the ledge 61 form an opening groove 48 that holds the upper edge of the insulating glass 26. The engagement piece 40d is provided at the upper end of the interior facing surface of the first horizontal member 40 and has a claw shape bent downward.

[0030] The second horizontal member 42 is disposed on the innermost side of the intermediate horizontal member 12e, and has an overall cross-sectional shape that is approximately chair-shaped. The second horizontal member 42 has both ends (small end faces) in the longitudinal direction fixed to the vertical frames 12c, 12d with screws 39. The second horizontal member 42 has a hollow portion 42a with an approximately chair-shaped cross-section, a recess 42b, an engagement piece 42c, and a positioning recess 42d. The recess 42b is a portion where the indoor side portion of the upper surface of the second horizontal member 42 is recessed downward. The engagement piece 42c is provided at the upper end of the outdoor facing surface of the second horizontal member 42, and has a claw shape that is bent downward. The positioning recess 42d is a portion where the lower surface of the second horizontal member 42 is slightly recessed upward, and is formed between the short protrusions formed on both indoor and outdoor ends.

[0031] Brackets 62, 63 are lined up above and below and screwed to the interior facing surface of the second horizontal member 42. The upper bracket 62 has a roughly crank-shaped cross section and, together with the recess 42b, forms an open groove 46 that holds the lower edge of the fireproof board 22. The lower bracket 63 has a roughly L-shaped cross section and its lower part is screwed to the blind box 49.

[0032] The support member 41 is disposed between the cross members 40 and 42, and has a generally L-shaped cross section. The support member 41 has a first portion 41A extending in the vertical direction, and a second portion 41B extending from the lower portion of the first portion 41A toward the indoor side. The first portion 41A can be disposed at a position sandwiched between the cross members 40 and 42. The protruding piece 45 is provided on the upper surface of the first portion 41A. The second portion 41B is disposed so as to cover the lower surface of the second cross member 42, and its upper surface is fixed to the second cross member 42 in the vertical direction using a screw 64. The screw 64 may be provided at a plurality of positions in the longitudinal direction (X direction) of the support member 41. The upper surface of the second portion 41B has short protrusions aligned in the indoor / outdoor direction. The second portion 41B engages with the positioning recess 42d via the protrusion, and is positioned in the indoor / outdoor direction relative to the second cross member 42. The support member 41 may be connected vertically to the first horizontal member 40, or may be connected vertically to the horizontal members 40, .

[0033] 3, in the present embodiment, the first portion 41A of the support member 41 is disposed between the cross members 40 and 42. Meanwhile, the second portion 41B is disposed so as to cover the lower surface of the second cross member 42, and its interior facing surface is disposed substantially flush with the interior facing surface of the second cross member 42. For example, the second portion 41B may be omitted, and the support member 41 may be configured as a whole only with the rectangular first portion 41A, and the whole may be disposed between the cross members 40 and 42.

[0034] The support member 41 has a hollow portion 41a with a generally L-shaped cross section spanning the portions 41A and 41B, engagement pieces 41b and 41c, and a wiring hole 41d. The engagement pieces 41b and 41c are provided at the upper ends of the exterior and interior facing surfaces of the first portion 41A, respectively, and have a claw shape bent upward. The exterior engagement piece 41b can be engaged with and disengaged from the engagement piece 40d of the first horizontal member 40 from below. The interior engagement piece 41c can be engaged with and disengaged from the engagement piece 42c of the second horizontal member 42 from below. The wiring hole 41d penetrates the interior facing surface of the second portion 41B and communicates with the wiring hole 63a formed in the bracket 63.

[0035] A wiring 66 is provided in the hollow portion 41a of the support member 41. A wiring 67 is provided between the blind box 49 and the fireproof board 22 and the second horizontal member 42. One end of the wiring 66 penetrates the upper surface of the support member 41 and is connected to the lower end of the functional member 20, and the other end is electrically connected to the wiring 67 by a connection portion 68. The wiring 66 has a stretchable extra length 66a wound in a spiral shape around a portion along the indoor / outdoor direction on the second portion 41B side. One end of the wiring 67 passes through the wiring holes 63a, 41d and is connected to the wiring 66 by a connection portion 68, and the other end is passed from the upper side of the blind box 49 into the attic space and connected to the power source of the building. The wiring 67 has a stretchable extra length 67a wound in a spiral shape around a portion along the vertical direction between the blind box 49 and the fireproof board 22 and the second horizontal member 42.

[0036] As shown in Figs. 2 and 3, when the support member 41 is at the most upwardly moved position relative to the cross members 40 and 42, the engagement pieces 41b and 41c of the support member 41 engage with the engagement pieces 41b and 41c of the cross members 40 and 42 from below. At this time, the upper surface of the second portion 41B of the support member 41 is positioned in the projection direction by the positioning recess 42d of the second cross member 42. The support member 41 is fastened to the lower surface of the second cross member 42 by a screw 64 that penetrates the upper surface of the second portion 41B from the hollow portion 42a. As a result, the support member 41 is detachably connected to the cross members 40 and 42 so as to complement the space between the cross members 40 and 42, and forms a part of the intermediate cross member 12e. For this reason, it is easy to secure the installation space for the support member 41, and the support structure for the intermediate cross member 12e can also be simplified.

[0037] As shown in FIG. 5, the support member 41 can be easily pulled down from between the cross members 40 and 42, that is, toward the vision section 15, by removing the screw 64. At this time, the wires 66 and 67 have their excess lengths 66a and 67a extended. In particular, the excess length 66a of the wire 66 moving downward together with the support member 41 extends significantly, and the connection portion 68 is drawn out of the hollow portion 42a through the wiring hole 41d. This prevents the wires 66 and 67 from being subjected to excessive load when the support member 41 is moved downward, resulting in defects such as disconnection and damage. The curtain wall 10 also makes it easy to connect and disconnect (disconnect) the wires 66 and 67 by drawing out the connection portion 68 to the hollow portion 42a. Reference symbol 64a in FIG. 5 is a cap that closes a hole through which a tool for operating the screw 64 or the screw 64 itself is passed when attaching or detaching it.

[0038] Next, the effects of the curtain wall 10 of this embodiment will be described.

[0039] As described above, the support member 41 is detachably connected to the intermediate cross member 12e, and can be easily pulled down toward the vision section 15. The lower edge of the functional member 20 is connected to the support member 41. The functional member 20, which is, for example, a solar cell, may develop a defect due to aging or the like, and maintenance work such as replacement may be required.

[0040] When performing such maintenance work on the curtain wall 10 of this embodiment, a worker removes the screw 64 from the vision section 15 side and pulls out the support member 41 downward. Then, as shown in FIG. 5, the functional member 20 is pulled out to the vision section 15 side together with the support member 41, and at the same time, the connection part 68 is exposed. This allows the worker to easily perform the work of undoing (removing) the wiring 66, 67 at the connection part 68 and the work of removing the functional member 20 from the support member 41. In other words, the curtain wall 10 allows the functional member 20, which is installed in the sealed space between the glass 18 and the fireproof board 22 in the spandrel part 14, to be easily pulled out to the vision section 15 side for maintenance. This improves the workability of the maintenance work on the functional member 20 of the curtain wall 10.

[0041] Therefore, when performing maintenance on the functional members 20, the curtain wall 10 does not require large-scale work such as removing or destroying the fireproof boards 22 and fireproof materials 24 or removing the glass 18. In other words, the curtain wall 10 does not require the installation of scaffolding or the like on the outside of the room during maintenance work, and it is possible to prevent the curtain wall 10 from losing its function as an exterior wall during work, and to prevent the inside of the spandrel portion 14 from being exposed to wind and rain. The support members 41 may be detachably supported by, for example, brackets attached to the visible surfaces of the left and right vertical frames 12c, 12d, instead of the horizontal members 40, 42 that constitute the intermediate horizontal member 12e.

[0042] In the curtain wall 10 of this embodiment, the functional member 20 can be connected to the supporting member 41 via the lower holding frame 54b that holds the lower edge of the functional member 20. In this way, even if it is difficult to install the connecting portion between the functional member 20 and the supporting member 41, the functional member 20 can be reliably supported by the supporting member 41.

[0043] Furthermore, the holding frames 54a, 54c, and 54d that hold the upper edge and the left and right side edges of the functional member 20 are only engaged with the protruding pieces 29 and 37 that protrude from the visible surface of the frame body 12, and are therefore relatively movable in the up-down direction with respect to the frame body 12. Therefore, when the functional member 20 moves downward, the protruding pieces 37 of the vertical frames 12c and 12d in particular function as guide rails that guide the side edges (vertical holding frames 54c and 54d) of the functional member 20 in the up-down direction. This makes the downward movement of the functional member 20 even smoother.

[0044] The installation work of the functional member 20 on the spandrel portion 14 can be easily performed by reversing the procedure of the above-mentioned removal work. For example, the replaced functional member 20 is connected to the support member 41 via the retaining frame 54, and the wiring 66, 67 is connected by the wiring part 68. Then, the support member 41 is moved upward and installed between the cross members 40, 42, and the screw 64 is fastened. At the same time, the wiring part 68 is stored in the hollow part 42a through the wiring hole 41d. In this way, the installation work of the functional member 20 is easy for the curtain wall 10. In other words, the curtain wall 10 can be manufactured in a factory as a unit with the functional member 20 installed, as well as the glass 18 and the fireproof board 22, and it is only necessary to connect the wiring 66, 67 to this at the construction site, which reduces the construction work.

[0045] Next, a curtain wall 10A according to a second embodiment will be described with reference to FIGS.

[0046] In the curtain wall 10A of the second embodiment, elements that have the same or similar functions and effects as the curtain wall 10 of the first embodiment described above are given the same reference symbols and detailed descriptions are omitted, and the same applies to the curtain walls 10B and 10C of the following embodiments.

[0047] As shown in Figures 6 to 9, the curtain wall 10A of the second embodiment differs from the curtain wall 10 of the first embodiment described above in that the functional member 20 is directly connected to the support member 21 without using a retaining frame 54.

[0048] In the curtain wall 10A, the functional member 20 has its lower edge directly fixed to the protruding piece 45 of the support member 41 by a screw 58. However, the functional member 20 in this embodiment is, for example, a thin film-like or sheet-like power generating material. For this reason, if only the lower edge of the functional member 20 is supported, it will wobble or bend, making it difficult to stably support itself within the spandrel portion 14. Therefore, the functional member 20 may be supported and held by an auxiliary member 70. The auxiliary member 70 is, for example, a surface material having sufficient rigidity, such as a resin panel. The auxiliary member 70 is preferably disposed on the indoor side surface opposite to the glass 18 side that receives sunlight. The auxiliary member 70 is, for example, placed on substantially the entire indoor side surface of the functional member 20, and is fixed integrally to the functional member 20 by a fixing member such as a screw, a double-sided adhesive tape, or an adhesive. The auxiliary member 70 is also fixed integrally to the support member 41 together with the lower edge of the functional member 20 by using a screw 58 (see FIG. 7).

[0049] In this embodiment, the upper edge and the left and right side edges of the functional member 20 and the auxiliary member 70 may be positioned and held in the projection direction by a guide member 72 connected to the projection surface of the frame body 12. The guide member 72 is an extruded shape of metal, such as aluminum. The guide member 72 is screwed to the projection surfaces of the upper frame 12a and the vertical frames 12c and 12d. The guide member 72 is formed in a substantially U-shaped cross section, and the edges of the functional member 20 and the auxiliary member 70 are inserted into an opening groove facing the inside of the frame to hold them. Reference numeral 73 in Figs. 7 and 8 denotes an auxiliary member that is screwed to the upper surface of the support member 41 and that positions and protects the wiring 66 in a through hole that introduces the wiring 66 connected to the functional member 20 into the hollow portion 42a.

[0050] Therefore, as shown in Figs. 7 and 9, in the curtain wall 10A of this embodiment, the maintenance of the functional member 20 can be easily performed by pulling down the support member 41 toward the vision section 15 side, as in the curtain wall 10 of the first embodiment. In particular, the curtain wall 10A does not have a retaining frame 54 compared to the above-mentioned curtain wall 10, so the configuration of the functional member 20 and its surroundings is further simplified. That is, in the curtain wall 10A, for example, the replacement work of the functional member 20 can be performed by simply attaching and detaching the functional member 20 to the auxiliary member 70 and the protruding piece 45, and the work is further simplified. Also in the curtain wall 10A, the guide members 72 of the vertical frames 12c and 12d function as guide rails that guide the downward movement of the left and right side edges of the functional member 20 and the auxiliary member 70. This makes the downward movement of the functional member 20 even smoother.

[0051] Next, a curtain wall 10B according to a third embodiment will be described with reference to FIGS.

[0052] As shown in Figures 10 and 11, the curtain wall 10B of the third embodiment differs from the curtain wall 10A of the second embodiment described above in that the support member 41 has a cover portion 74, and further has an airtight structure and an insulating structure between the support member 41 and the cross members 40, 42.

[0053] In the curtain wall 10B, the support member 41 has a cover portion 74 that covers the gap G1 between the first horizontal member 40. The gap G1 is a gap that is formed between the indoor facing surface of the first horizontal member 40 and the outdoor facing surface of the support member 41 and extends in the vertical direction. The lower end of the gap G1 opens toward the vision section 15. The cover portion 74 is a plate piece that extends from the lower end of the outdoor facing surface of the support member 41 toward the outdoor side. The cover portion 74 covers the lower part of the first horizontal member 40, thereby covering and concealing the lower end opening of the gap G1. The cover portion 74 has a substantially L-shaped bent piece 74a formed upright on the upper surface near the outdoor end. The bent piece 74a is fastened to the lower surface of the first horizontal member 40 by using a screw 75. The screw 75 may be provided at multiple positions in the longitudinal direction (X direction) of the cover portion 74. This suppresses rattling of the cover portion 74 and stabilizes it. 10 denotes a cap that closes a hole through which a tool for operating the screw 75 or the screw 75 itself passes when attaching or detaching it. A heat insulating material (third heat insulating material) 76 may be sandwiched between the bent piece 74a and the underside of the first horizontal member 40.

[0054] The airtight structure of the curtain wall 10B ensures the airtightness of the spandrel section 14. That is, the intermediate horizontal member 12e that separates the spandrel section 14 and the vision section 15 supports the support member 41 in a detachable manner. Therefore, the above-mentioned gap G1 is formed between the support member 41 and the first horizontal member 40. Similarly, a gap G2 is formed along the vertical direction between the interior facing surface of the support member 41 and the exterior facing surface of the second horizontal member 42. This airtight structure can be constructed by airtight materials 77a and 77b that close the gaps G1 and G2. The airtight material (first airtight material; first insulating material) 77a is a weatherstripping material attached to a pocket provided at the upper end of the interior facing surface of the first horizontal member 40. The airtight material 77a can be in close contact with the exterior facing surface of the support member 41. The airtight material (second airtight material; second heat insulating material) 77b is a heat insulating material attached to a pocket provided at the upper end of the exterior facing surface of the second horizontal member 42. The airtight material 77b can be closely attached to the interior facing surface of the support member 41.

[0055] The thermal insulation structure of the curtain wall 10B ensures thermal insulation performance in the indoor / outdoor direction at the intermediate horizontal member 12e. This thermal insulation structure can be constructed by airtight materials 77a, 77b and a thermal insulation material 76. The airtight materials 77a, 77b are formed of, for example, rubber sponge, and have thermal insulation performance in addition to airtight performance. Therefore, the intermediate horizontal member 12e can insulate between the horizontal members 40, 42 and the support member 41 by having the airtight materials 77a, 77b between the horizontal members 40, 42 and the support member 41. Furthermore, the support member 41 of this embodiment has a cover portion 74, and the thermal insulation can also be provided between the cover portion 74 and the first horizontal member 40 by the thermal insulation material 76.

[0056] 10 and 11, in the curtain wall 10B of this embodiment, similarly to the curtain walls 10 and 10A of the first and second embodiments, maintenance of the functional member 20 can be easily performed by pulling down the support member 41 toward the vision section 15. In the curtain wall 10B, when pulling down the support member 41, it is necessary to remove the screw 75 in addition to the screw 64.

[0057] The curtain wall 10B of this embodiment can cover the gap G1 with the cover portion 74. Therefore, the curtain wall 10B has improved design when looking up at the intermediate cross member 12e from the vision portion 15. Incidentally, as is the case with the above-mentioned curtain walls 10 and 10A, the curtain wall 10B also functions as a cover portion in which the second portion 41B of the support member 41 covers the lower end opening of the gap G2. Therefore, the curtain wall 10B covers and conceals the gap G2 in addition to the gap G1, further improving the design. The cover portion 74 and the heat insulating material 76 may be applied to the curtain wall 10 of the first embodiment.

[0058] The curtain wall 10B of this embodiment has an airtight structure using airtight materials 77a and 77b. Therefore, the curtain wall 10B provides an airtight seal between the spandrel portion 14, which is the ceiling space, and the vision portion 15, which is the living space, thereby improving air conditioning efficiency and providing other benefits. Furthermore, the curtain wall 10B has a heat-insulating structure using the airtight materials 77a and 77b and the heat insulating material 76. Therefore, the curtain wall 10B has improved heat insulation performance in the indoor and outdoor directions at the intermediate cross member 12e, and further improves air conditioning efficiency at the vision portion 15. The airtight materials 77a and 77b may be applied to the curtain wall 10 of the first embodiment.

[0059] Next, a curtain wall 10C according to a fourth embodiment will be described with reference to FIGS.

[0060] As shown in FIGS. 12 and 13, a curtain wall 10C of the fourth embodiment differs from the curtain walls 10, 10A, and 10B of the above-described embodiments in that it includes reinforcing members 80, 81, and .

[0061] The curtain wall 10C of this embodiment has a fireproof structure. The first horizontal member 40 of the curtain wall 10C has a cross section formed in a substantially L-shape, and has two hollow portions 40e, 40f partitioned in the indoor and outdoor directions. The first horizontal member 40 has a connecting piece 40c on the visible surface located below the hollow portion 40e on the outdoor side. An attachment 84 is attached to the connecting piece 40c, and a batten 61 is attached to the attachment 84. In other words, the vision portion 15 of the curtain wall 10C has a unit structure connected to the intermediate horizontal member 12e via the attachment 84. The second horizontal member 42 of the curtain wall 10C has a bracket 62 changed from a crank shape to a plate shape along the vertical direction. In the curtain wall 10C, the connection parts of the fireproof board 22, the bracket 62, and the second horizontal member 42 are blocked with a fireproof material 24. As a result, the intermediate horizontal member 12e of the curtain wall 10C has a fireproof structure formed in the first horizontal member 40 on the exterior side and its surrounding area, and in the second horizontal member 42 on the interior side and its surrounding area.

[0062] Furthermore, in the curtain wall 10C, reinforcing members 80-82 are attached to the second horizontal member 42 and the supporting member 41. The reinforcing members 80-82 complement the fireproof structures provided on the outdoor side and indoor side of the intermediate horizontal member 12e. The reinforcing members 80-82 are members made by bending a metal sheet such as steel or stainless steel that has higher strength than the second horizontal member 42 and the supporting member 41, which are formed from extruded metal including aluminum.

[0063] The reinforcing member 80 can be formed to have a substantially U-shaped cross section. The reinforcing member 80 is disposed in the hollow portion 42a of the second horizontal member 42, and is disposed in contact with three surfaces including the interior wall surface on the indoor side, and is screwed in place. The reinforcing member 81 can be formed to have a substantially J-shaped cross section. The reinforcing member 81 is disposed in the hollow portion 41a of the second portion 41B, and is disposed in contact with four surfaces including the lower inner wall surface and the interior wall surface on the indoor side, and is screwed in place. The reinforcing member 81 covers the wiring hole 41d, and a wiring hole 81a communicating with the wiring hole 41d is formed in that portion. The reinforcing members 80 and 81 are partially fastened together with the screw 64. The reinforcing member 82 can be formed to have a substantially L-shaped cross section. The reinforcing member 82 is disposed in contact with the upper surface of the cover portion 74 of the second portion 41B and the exterior facing surface of the support member 41, and is screwed in place. As shown in FIG. 12, the cover portion 74 of the curtain wall 10C of this embodiment is shorter than the cover portion 74 of the curtain wall 10B shown in FIG.

[0064] Therefore, as shown in Figures 12 and 13, in the curtain wall 10C of this embodiment, as in the curtain walls 10, 10A, and 10B of the first to third embodiments, maintenance of the functional member 20 can be easily performed by pulling down the support member 41 toward the vision section 15.

[0065] In the curtain wall 10C of this embodiment, reinforcing members 81, 82 are attached to the supporting member 41. Therefore, a fireproof structure can also be constructed in the supporting member 41 which becomes a gap between the cross members 40, 42 and the fireproof structure constructed in the surrounding area. The reinforcing members 80 to 82 may be applied to the above-mentioned curtain walls 10, 10A, 10B.

[0066] As described above, the curtain wall or sash according to one aspect of the present invention has an upper frame, a lower frame, a pair of vertical frames, and an intermediate horizontal member extending between the pair of vertical frames, a first opening is formed between the lower frame and the intermediate horizontal member, and a second opening is formed between the upper frame and the intermediate horizontal member, and the second opening is provided with glass and a functional member disposed on the indoor side of the glass, and a support member supporting a lower edge of the functional member, the support member being movable toward the first opening and being detachably supported by the intermediate horizontal member or the vertical frames, so that the functional member can be moved from the second opening to the first opening. With this configuration, when performing maintenance work such as replacing the functional member, a worker can remove the support member from the intermediate horizontal member or the vertical frames from the first opening side and pull it out downward. This improves the workability of the maintenance work of the functional member.

[0067] A fireproof board may be provided in the second opening on the indoor side of the functional member. In this case, the functional member is disposed in an enclosed space between the glass and the fireproof board, but the functional member can be easily maintained by moving the support member.

[0068] The intermediate horizontal member may have a first horizontal member supporting the lower edge of the glass, and a second horizontal member arranged on the room side of the first horizontal member and supporting the lower edge of the fireproof board, and at least a part of the support member may be arranged between the first horizontal member and the second horizontal member and may be supported detachably by at least one of the first horizontal member and the second horizontal member. In this way, since the support member essentially constitutes a part of the intermediate horizontal member, it is easy to secure the installation space thereof and the support structure for the intermediate horizontal member can be simplified.

[0069] The support member may be connected to the lower holding frame to support the lower edge of the functional member, and the support member may be connected to the lower holding frame to support the lower edge of the functional member via the lower holding frame. In this way, the support member can more reliably support the functional member.

[0070] The present invention may further include an auxiliary member for holding the functional member, and the functional member may be supported integrally with the supporting member together with the auxiliary member. In this way, the functional member can be reliably supported by the supporting member while ensuring stable self-support of the functional member at the second opening.

[0071] A first airtight material that provides airtightness between the support member and the first horizontal member, and a second airtight material that provides airtightness between the support member and the second horizontal member may be provided. In this case, for example, the space between the second opening, which is the ceiling space, and the first opening, which is the living space, can be sufficiently airtight, thereby obtaining effects such as improved air conditioning efficiency.

[0072] A first insulating material for insulating between the support member and the first horizontal member, and a second insulating material for insulating between the support member and the second horizontal member may be provided, thereby improving the insulating performance of the intermediate horizontal member in the indoor / outdoor directions.

[0073] The support member may be configured to extend below the first horizontal member and have a cover portion that covers a gap between the support member and the first horizontal member, thereby improving the design when looking up at the intermediate horizontal member through the first opening.

[0074] The structure may include a first insulating material for insulating between the support member and the visible surface of the first horizontal member, a second insulating material for insulating between the support member and the visible surface of the second horizontal member, and a third insulating material for insulating between the cover part and the lower surface of the first horizontal member, thereby improving the insulating performance of the intermediate horizontal member in the indoor and outdoor directions.

[0075] The support member may have a reinforcing material attached to a portion thereof, which improves the strength of the support member that is detachably supported on the intermediate horizontal member or the vertical frame, and also improves the fire resistance.

[0076] The functional member may be connected to wiring, the support member may extend below the second horizontal member, and may have a hollow portion with a through hole formed in the indoor wall portion, and the wiring may pass through the through hole from the hollow portion. In this way, the wiring connected to the functional member can be easily handled, and the wiring can be easily connected to the power source of the building on the indoor side.

[0077] The pair of vertical frames may be configured to have guide rails for guiding the movement of the functional member, thereby making the movement of the functional member even smoother.

[0078] The functional member may be a power generating material, in which case the space of the second opening can be utilized to generate electricity, for example, by a solar cell.

[0079] It should be noted that the present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0080] 10, 10A to 10C curtain wall, 12 frame body, 12a upper frame, 12b lower frame, 12c, 12d vertical frame, 12e intermediate horizontal member, 18, 26a, 26b glass, 20 functional member, 22 fireproof board, 40 first horizontal member, 41 support member, 42 second horizontal member, 54 retaining frame, 54b lower retaining frame, 66, 67 wiring, 70 auxiliary member, 74 cover part, 76 Insulation materials, 77a, 77b Airtight materials, 80-82 Reinforcing materials

Claims

1. A curtain wall or sash having an upper frame, a lower frame, a pair of vertical frames, and an intermediate horizontal member extending between the pair of vertical frames, wherein a first opening is formed between the lower frame and the intermediate horizontal member, and a second opening is formed between the upper frame and the intermediate horizontal member, The second opening is provided with a glass and a functional member arranged on an indoor side of the glass, a support member for supporting a lower edge portion of the functional member; The support member is movable toward the first opening and is detachably supported by the intermediate horizontal member or the vertical frame, thereby allowing the functional member to be moved from the second opening to the first opening. A curtain wall or sash comprising:

2. The curtain wall or sash according to claim 1, A fireproof board is provided on the second opening on the indoor side of the functional member. A curtain wall or sash comprising:

3. The curtain wall or sash according to claim 2, The intermediate cross member is A first cross member supporting a lower edge of the glass; A second horizontal member is disposed on the indoor side of the first horizontal member and supports a lower edge portion of the fireproof board; having At least a portion of the support member is disposed between the first horizontal member and the second horizontal member, and is supported detachably with respect to at least one of the first horizontal member and the second horizontal member. A curtain wall or sash comprising:

4. The curtain wall or sash according to claim 3, a lower holding frame for holding a lower edge portion of the functional member, and a holding frame for holding an outer peripheral edge portion of the functional member; The support member is connected to the lower holding frame to support a lower edge portion of the functional member via the lower holding frame. A curtain wall or sash comprising:

5. The curtain wall or sash according to claim 3, An auxiliary member for holding the functional member is provided, The functional member is supported integrally with the auxiliary member by the support member. A curtain wall or sash comprising:

6. The curtain wall or sash according to any one of claims 3 to 5, A first airtight material that provides an airtight seal between the support member and the first cross member; A second airtight material that provides airtightness between the support member and the second cross member; Equipped A curtain wall or sash comprising:

7. The curtain wall or sash according to any one of claims 3 to 5, A first insulating material that insulates between the support member and the first cross member; A second insulating material that insulates between the support member and the second cross member; Equipped A curtain wall or sash comprising:

8. The curtain wall or sash according to any one of claims 3 to 5, The support member has a cover portion that extends below the first horizontal member and covers a gap between the support member and the first horizontal member. A curtain wall or sash comprising:

9. The curtain wall or sash according to claim 8, A first insulating material that insulates between the support member and the facing surface of the first cross member; A second insulating material that insulates between the support member and the facing surface of the second cross member; A third insulating material that insulates between the cover portion and the lower surface of the first cross member; Equipped A curtain wall or sash comprising:

10. The curtain wall or sash according to any one of claims 1 to 5, The support member has a reinforcing material attached to a portion thereof. A curtain wall or sash comprising:

11. The curtain wall or sash according to any one of claims 3 to 5, A wiring is connected to the functional member, The support member extends below the second cross member and has a hollow portion with a through hole formed in the indoor side wall portion, The wiring passes through the through hole from the hollow portion. A curtain wall or sash comprising:

12. The curtain wall or sash according to any one of claims 1 to 5, The pair of vertical frames has guide rails for guiding the movement of the functional member. A curtain wall or sash comprising:

13. The curtain wall or sash according to any one of claims 1 to 5, The functional component is a power generating material. A curtain wall or sash comprising:

Images