Unitized curtain wall

Abstract

To provide an unitized curtain wall with a high degree of freedom in design and improved design quality.SOLUTION: The unitized curtain wall has a membrane forming an outer skin positioned on an exterior side, and a panel forming an inner skin positioned on an interior side and having higher rigidity than the membrane, and an outer frame holding outer peripheries of the panel and the membrane and supported by a building structure.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a unit curtain wall. [Background technology]

[0002] Unitized curtain wall units have been known for some time, in which two sheets of glass facing each other with a gap in the projection direction are held in a frame and supported by the building's structural body, and are placed around the perimeter of a building (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-111832 A Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional curtain wall units described above expose highly rigid components such as glass on the periphery of the building, which limits the overall design of the building to a certain extent. For this reason, there is a demand for increasing the design variations of buildings using curtain wall units and improving their design. The present invention has been made in view of the above problems, and its object is to provide a unit curtain wall that has a high degree of freedom in design and is superior in aesthetic appeal. [Means for solving the problem]

[0005] In order to achieve this purpose, the unit curtain wall of the present invention is characterized by having a membrane that is placed on the outdoor side and forms an outer skin, a panel that is placed on the indoor side and forms an inner skin and is more rigid than the membrane, and an outer frame that holds the outer periphery of the panel and the membrane and is supported by the building structure. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide a unit curtain wall that has a high degree of freedom in design and is more aesthetically pleasing. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an external view showing a unit curtain wall according to a first embodiment. [Figure 2] 2 is a cross-sectional view taken along the line AA in FIG. 1. [Figure 3] 2 is a cross-sectional view of FIG. 1 taken along line B-B. [Figure 4] 10A and 10B are diagrams showing a structure for fixing a mesh material to a fixing frame. [Figure 5] 1 is a diagram illustrating the mounting structure of a mesh panel in the unit curtain wall of the first embodiment. FIG. [Figure 6] FIG. 2 is a cross-sectional view showing a state in which a mesh panel in the unit curtain wall of the first embodiment is attached to an outer peripheral frame. [Figure 7] 10A and 10B are diagrams illustrating the mounting structure of mesh panels in the unit curtain wall of the second embodiment. [Figure 8] FIG. 10 is a cross-sectional view showing a state in which a mesh panel in a unit curtain wall of a second embodiment is attached to an outer peripheral frame. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, a unit curtain wall according to an embodiment of the present invention will be described with reference to the drawings.

[0009] First Embodiment As shown in FIG. 1, a plurality of unit curtain walls 1 of the first embodiment are attached adjacently in the vertical and horizontal directions to the framework of a building or the like to form a unit that constitutes an exterior wall.

[0010] As shown in Figures 2 and 3, each unit curtain wall (hereinafter referred to as curtain wall) 1 has a double-skin structure having double glazing 2 as a panel that is placed on the indoor side and forms the inner skin, mesh material 3 as a membrane that is placed on the outdoor side and forms the outer skin, and an outer periphery frame 4 that holds the outer periphery of the double glazing 2 and mesh material 3. The mesh material 3 is stretched over a rectangular fixed frame 30 and formed into a panel-like mesh material panel 31, with its outer periphery attached to the outer periphery frame 4. The mesh material panel 31 will be described in detail later.

[0011] The outer perimeter frame 4 has a pair of outer perimeter horizontal frames 40 arranged above and below, a pair of outer perimeter vertical frames 41 arranged left and right, an inner batten 42 fitted to the indoor side of each outer perimeter horizontal frame 40 and each outer perimeter vertical frame 41, and four outer batten 43 fitted to the outdoor side of each outer perimeter horizontal frame 40 and each outer perimeter vertical frame 41. The outer perimeter horizontal frames 40, outer perimeter vertical frames 41, inner batten 42 and outer batten 43 are all extruded members with the longitudinal direction as the extrusion direction.

[0012] Each outer peripheral horizontal frame 40 and each outer peripheral vertical frame 41 are framed in a rectangular shape. In the outer peripheral frame 4, the peripheral edge of the double-glazed glass 2 is accommodated in a groove formed around the entire periphery by fitting an inner batten 42 onto the indoor side of each outer peripheral horizontal frame 40 and each outer peripheral vertical frame 41, and the peripheral edge of the mesh panel 31 is accommodated in a groove 4a formed around the entire periphery by fitting an outer batten 43 onto the indoor side of each outer peripheral horizontal frame 40 and each outer peripheral vertical frame 41. The peripheral edge of the mesh panel 31 is clamped between gaskets 5 attached to the outer peripheral horizontal frame 40, each outer peripheral vertical frame 41, and each outer batten 43 and attached to the outer peripheral frame 4.

[0013] As described above, the mesh panel 31 is constructed by stretching a mesh 3 over the fixed frame 30, which is formed into a rectangular shape. As shown in Figure 4, the fixed frame 30 has a frame body 33, which is formed by a rectangular frame of four panel frame members 32 made of the same extruded shape material, and a fixing member 34 attached to the frame body 33.

[0014] The panel frame material 32 has a hollow portion 32a that penetrates in the longitudinal direction and has a rectangular cross section, and a recessed portion 32b adjacent to the hollow portion 32a. Each panel frame material 32 has a rectangular frame body 33, and the hollow portion 32a and the recessed portion 32b are aligned in the finder direction, with the hollow portion 32a located on the inner periphery and the recessed portion 32b located on the outer periphery. In other words, the recessed portion 32b is recessed on the inner periphery and has a groove shape that runs along the longitudinal direction and is open on the outer periphery.

[0015] The recess 32b is formed by a pair of opposing plate portions 32c that form a hollow portion 32a and face each other at a distance in the projection direction, and a pair of extending plate portions 32d that extend outward from the hollow portion 32a. The pair of extending plate portions 32d are connected to a pair of outer peripheral surface portions 32f that are provided on the outer peripheral side of the recess 32b and form a slit 32e in the center of the projection direction. That is, the outer peripheral surface portions 32f are provided on both sides of the slit 32e in the projection direction, and the outer peripheral surface portions 32f are each connected to the extending plate portions 32d. The outer peripheral surface portions 32f and the extending plate portions 32d are connected by a curved surface.

[0016] The fixing members 34 are attached to the outer periphery of each panel frame material 32, and have, for example, the same length as the panel frame material 32 to which they are attached. Each fixing member 34 is cut to match the length of the panel frame material 32 to which the same extruded shape material is attached. Note that the fixing members 34 may be made of multiple piece-shaped members that are shorter than the panel frame material 32.

[0017] The fixing member 34 has a frame portion 34a arranged across a pair of outer peripheral surface portions 32f on both sides of the slit 32e, and a pair of insertion portions 34b that protrude inward from the inner peripheral surface of the frame portion 34a and are inserted into the recess 32b through the slit 32e. The pair of insertion portions 34b are provided facing each other with a gap in the projection direction at positions on the frame portion 34a separated from the center in the projection direction.

[0018] The pair of insertion portions 34b are connected in the longitudinal direction and are provided over the entire length of the fixing member 34, and a plurality of fixing screw insertion holes 34c, through which fixing screws 35 are inserted, are provided between the pair of insertion portions 34b at appropriate intervals in the longitudinal direction. The diameter of the fixing screw insertion holes 34c is approximately equal to the diameter of the threaded portion of the fixing screw 35, and the spacing between the pair of insertion portions 34b is approximately equal to the diameter of the threaded portion of the fixing screw 35, and is formed so that the spacing narrows towards the tip.

[0019] The pair of insertion portions 34b have at their tip ends locking pieces 34d that protrude in the opposite direction from the direction in which they face each other and that lock onto the edge of slit 32e, i.e., the edge of outer peripheral surface portion 32f. Also, a slight recess 34e is provided along the longitudinal direction in the portion of each of the pair of insertion portions 34b facing the bridge plate portion 34a, making it easier for the insertion portions 34b to bend in the direction opposite to the direction in which they face each other.

[0020] To attach the mesh material 3 to the fixed frame 30, first, the outdoor side of the frame body 33 is covered with the mesh material 3, and then the peripheral end of the mesh material 3 is bent toward the indoor side. At this time, the peripheral end of the mesh material 3 is wrapped around the extending plate portion 32d along the outer peripheral surface portion 32f, and is positioned so as to cover the slit 32e.

[0021] Next, the insertion portion 34b of the fixing member 34 is inserted from the outer periphery side of the fixing frame 30 into the slit 32e together with the mesh material 3 covering the slit 32e and inserted into the recess 32b.

[0022] Next, fixing screws 35 are threadedly inserted into the fixing screw insertion holes 34c of the fixing member 34 from the outer periphery of the fixing frame 30. As a result, the pair of insertion portions 34b are pushed apart in a direction in which the spacing between them increases by the entering fixing screws 35. At this time, locking pieces 34d provided at the tip of each insertion portion 34b are locked with edges of the outer periphery surface portion 32f located on both sides of the slit 32e, and the fixing member 34 is fixed in a state in which it cannot be removed. The mesh material 3 is then held together with the fixing member 34 so as not to be removed from the recess 32b, and is sandwiched between the bridge plate portion 34a and the outer periphery surface portion 32f of the fixing member 34, thereby being attached to the fixing frame 30 to form the mesh panel 31.

[0023] The mesh panel 31 is attached to the outer periphery horizontal frame 40 and each outer periphery vertical frame 41 by an outer batten 43. The structure by which the fixed frame 30 is fixed to the outer periphery horizontal frame 40 and each outer periphery vertical frame 41 is the same, so here we will explain an example in which the mesh panel 31 is attached to the outer periphery vertical frame 41.

[0024] As shown in Figures 5 and 6, the outer peripheral vertical frame 41 has a visible wall portion 41a having a visible surface facing the outdoors, an extended wall portion 41b extending from the outer peripheral edge of the visible wall portion 41a toward the indoor side, a locking protrusion 41c of the gasket 5 protruding from the visible wall portion 41a toward the outdoors, and a push edge locking portion 41d provided on the extended wall portion 41b to lock the outer push edge 43.

[0025] Each of the outer flanges 43 that are engaged with the outer vertical frame 41 has, when engaged, an opposing plate portion 43a that faces the visible wall portion 41a with a gap in the visible direction, a visible plate portion 43b that extends from the outer edge of the opposing plate portion 43a toward the indoor side, an flange engaged portion 43c that is provided on the indoor side of the visible plate portion 43b and engaged with the flange engaging portion 41d, and a gasket holding portion 43d that is provided at the inner end of the opposing plate portion 43a and holds a gasket 5.

[0026] The mesh panel 31 is attached to the outer frame 4 with the fixed frame 30 abutting from the outside against the gasket 5 which is engaged with the engaging protrusion 41c of the rectangular outer vertical frame 41, and the pressed edge engaged portion 43c engaged with the pressed edge engaging portion 41d of the outer vertical frame 41, with the fixed frame 30 sandwiched between the gaskets 5 facing in the forward direction.

[0027] That is, the outer flange 43 is engaged with the outer vertical frame 41, and the visible wall portion 41a, the opposing plate portion 43a and the visible plate portion 43b form a groove portion 4a in which the peripheral end portion of the mesh panel 31 is accommodated, and the mesh panel 31 is attached by clamping the fixed frame 30 with a gasket 5 facing the visible direction on the open side of the groove portion 4a.

[0028] The unit curtain wall 1 of the first embodiment uses a mesh material 3 as the outer skin, making it possible to realize designs that are completely different from those of unit curtain walls that use highly rigid panels such as glass as the outer skin. While the present embodiment has been described using a mesh material 3 as the membrane, the membrane is not limited to the mesh material 3. Any flexible sheet-like material, such as cloth or a copper-based resin sheet, can be used as long as it can fit along the fixed frame 30 and enter the recess 32b together with the insertion portion 34b, and does not necessarily have to be breathable. Therefore, by using a wide variety of membranes, a greater number of designs can be realized. This allows for greater design freedom and makes it possible to provide a unit curtain wall 1 with superior design.

[0029] Furthermore, since the mesh material 3 is attached to the outer frame 4 with its peripheral edge fixed to the fixing frame 30, it is possible to easily attach and replace even mesh material 3 with a flexible inner skin. This provides excellent workability.

[0030] Furthermore, since the fixed frame 30 is attached to the outer frame 4 by the outer flange 43, it is possible to easily attach the fixed frame 30. Furthermore, since the fixed frame 30 can be removed by removing the gasket 5 and then removing the outer flange 43, it is easy to replace the mesh material 3 if it is torn, and maintenance is also excellent.

[0031] Furthermore, with the mesh material 3 inserted into the recess 32b through the slit 32e of the fixing frame 30 together with the pair of insertion portions 34b of the fixing member 34, the fixing screws 35 inserted into the fixing screw insertion holes 34c of the frame portions 34a spanning both sides of the slit 32e press the pair of insertion portions 34b inserted together with the mesh material 3 in directions away from each other, and the pressed edge engaged portions 43c are engaged with the edge of the outer peripheral surface portion 32f that forms the edge of the slit 32e, thereby fixing the mesh material 3. This makes it possible to fix the mesh material 3 to the fixing frame 30 without drilling holes in the mesh material 3 through which the fixing screws 35 pass.

[0032] Second Embodiment In the unit curtain wall 1 of the second embodiment, the fixed frame 30 to which the mesh material 3 is attached is arranged alongside the outer perimeter frame 4 in the projection direction and is attached to the outer perimeter frame 4 with mounting screws 36. The structure in which the fixed frame 30 is attached to the outer perimeter horizontal frame 40 and each outer perimeter vertical frame 41 is the same, so here we will explain an example in which the fixed frame 30 is attached to the outer perimeter vertical frame 41.

[0033] As shown in Figures 7 and 8, the outer peripheral vertical frame 41 that constitutes the unit curtain wall 1 of the second embodiment does not have the locking protrusions 41c and push edge locking portions 41d of the gasket 5 of the outer peripheral frame 4 of the first embodiment, and is provided with a fixed frame mounting portion 41e that protrudes outdoors from the visible wall portion 41a facing the outdoors and to which the fixed frame 30 is screwed.

[0034] The fixed frame mounting portion 41e has an outer peripheral frame protrusion piece 41f that extends from approximately the center of the inner and outer periphery of the sight wall portion 41a toward the outdoor side, i.e., toward the fixed frame 30, an outer peripheral extension portion 41g that extends toward the inner periphery from the outdoor side edge of the outer peripheral frame protrusion piece 41f, and an opposing protrusion portion 41h that protrudes in opposite directions from the inner peripheral edge of the outer peripheral extension portion 41g and the sight wall portion 41a.

[0035] The fixed frame attachment portions 41e are provided along the longitudinal direction, and the outer peripheral frame protruding pieces 41f are provided with attachment screw insertion holes (not shown) at appropriate intervals in the longitudinal direction, through which attachment screws 36 are inserted to attach the fixed frame 30. A back plate 37 having screw holes (not shown) into which the attachment screws 36 are screwed is arranged on the inner peripheral side of the outer peripheral frame protruding pieces 41f between the opposing protruding portions 41h.

[0036] The fixed frame 30 of the second embodiment has an inner periphery cover portion 32g as a fixed frame opposing piece, and fixed frame protruding pieces 32h provided on the outer periphery of the inner periphery cover portion 32g at a distance in the find direction, on the indoor side of the fixed frame 30 of the first embodiment. The inner periphery cover portion 32g is formed by extending a connecting plate portion 32i that connects the inner periphery ends of a pair of opposing plate portions 32c to the indoor side, and has a fixed frame extending piece 32j that extends outward from the tip of the inner periphery cover portion 32g.

[0037] The fixing frame protrusion piece 32h is a plate-shaped portion that extends indoors from the indoor-side extending plate portion 32d and abuts against the outer periphery of the outer periphery frame protrusion piece 41f. The fixing frame protrusion piece 32h has mounting screw insertion holes (not shown) through which the mounting screws 36 are inserted, which are appropriately spaced apart, similar to the outer periphery frame protrusion piece 41f.

[0038] The mesh panel 31 of the second embodiment is attached by abutting the fixed frame protrusion 32h and the inner peripheral cover portion 32g against the outer peripheral frame protrusion 41f, and inserting a mounting screw 36 that enters from the outer periphery and is screwed into the back plate 37. The tip of the mounting screw 36 screwed into the back plate 37 protrudes inward from between the opposing protrusions 41h and engages with the fixed frame extension 32j of the inner peripheral cover portion 32g, restricting movement of the fixed frame extension 32j. When the mesh panel 31 is attached, the inner peripheral surface of the connecting plate portion 32i and the inner peripheral edge of the visible wall portion 41a are aligned in a substantially straight line.

[0039] According to the unit curtain wall 1 of the second embodiment, as in the first embodiment, the outer skin is made of a mesh material 3, which provides better design and construction. Furthermore, since the fixing frame 30 is attached to the outer perimeter frame 4 with mounting screws 36, the fixing frame 30 can be attached to the outer perimeter frame 4 more reliably.

[0040] The outer perimeter frame 4 and fixed frame 30, which are arranged side by side in the front-facing direction, are attached by mounting screws 36 that penetrate the outer perimeter frame protruding pieces 41f and fixed frame protruding pieces 32h in the front-facing direction. The tips of the mounting screws 36 engage with the fixed frame extension pieces 32j, so tightening the mounting screws 36 restricts movement of the tips of the fixed frame extension pieces 32j. This prevents the tips of the mounting screws 36 from being exposed by the inner perimeter cover pieces 32g, and also prevents the inner perimeter cover pieces 32g from warping or lifting. This makes it possible to provide a unit curtain wall 1 with superior design.

[0041] In the second embodiment, an example was described in which the tip of the mounting screw 36 engages with the fixed frame extension piece 32j, but the tip of the mounting screw 36 does not necessarily have to engage with the fixed frame extension piece 32j, and the fixed frame 30 may be configured without an inner cover portion 32g.

[0042] In the second embodiment, an example was described in which, when the mesh panel 31 is attached, the inner surface of the connecting plate portion 32i and the inner edge of the visible wall portion 41a are aligned in a substantially straight line, but the inner surface of the connecting plate portion 32i and the inner edge of the visible wall portion 41a do not necessarily have to be aligned in a straight line.

[0043] In the above embodiment, an example has been described in which, when attaching the mesh material 3 to the fixed frame 30, the fixing screws 35 are inserted into the fixing screw insertion holes 34c to push apart the pair of insertion portions 34b, and the locking pieces 34d are engaged with the edge of the outer surface portion 32f to attach the mesh material 3 to the fixed frame 30. However, when the insertion portions 34b of the fixing member 34 are inserted into the slits 32e together with the mesh material 3 and inserted into the recesses 32b, the locking pieces 34d are engaged with the edge of the outer surface portion 32f to attach the mesh material 3 to the fixed frame 30 in a state in which they cannot come off, it is not necessary to use the fixing screws 35.

[0044] In the above embodiment, an example has been described in which the double-glazing glass 2 is used as an inner skin made of a panel with higher rigidity than a membrane, but this is not limited to this. The inner skin can be, for example, a single-pane glass, an interior board, a panel made of processed metal sheet, or the like, as long as it is panel-shaped and has higher overall rigidity than a membrane.

[0045] The above-described embodiments are provided to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention includes equivalents thereof. The present embodiment includes at least the following inventions.

[0046] Aspect 1: A unit curtain wall characterized by having a membrane that is placed on the outdoor side and forms an outer skin, a panel that is placed on the indoor side and forms an inner skin and is more rigid than the membrane, and an outer frame that holds the outer periphery of the panel and the membrane and is supported by the building structure.

[0047] According to the unit curtain wall of the first aspect, because the outer skin is a membrane, it is possible to realize a design that is completely different from that of a unit curtain wall that uses a panel such as glass for the outer skin. In addition, by using a wide variety of membranes, it is possible to realize a wider range of designs. This allows for a high degree of freedom in design, making it possible to provide a unit curtain wall with superior design.

[0048] Aspect 2: The unit curtain wall according to aspect 1, wherein the membrane is attached to the outer perimeter frame with its peripheral edge fixed to a fixing frame.

[0049] According to the unit curtain wall of aspect 2, the membrane is attached to the outer frame with its peripheral edge fixed to the fixing frame, so even if the outer skin is a membrane, it can be easily attached and replaced, which makes it easy to install.

[0050] Aspect 3: The unit curtain wall according to aspect 2, wherein the fixing frame is fixed via a gasket by a batten attached to the outer perimeter frame.

[0051] According to the unit curtain wall of aspect 3, the fixing frame is attached to the outer frame by the battens, making it easy to install. In addition, the fixing frame can be removed by removing the battens and then the fixing frame by removing the gasket, which makes it easy to replace the membrane if it is torn, and is also excellent for maintenance.

[0052] Aspect 4: The unit curtain wall according to aspect 2, wherein the fixed frame is attached to the outer perimeter frame by mounting screws.

[0053] According to the unit curtain wall of aspect 4, the fixing frame is attached to the outer perimeter frame by means of mounting screws, so that the fixing frame can be attached to the outer perimeter frame more reliably.

[0054] Aspect 5: A unit curtain wall according to any one of aspects 2 to 4, wherein the membrane is fixed to the fixing frame by a fixing member attached thereto, the fixing frame having a recess connected in the circumferential direction and a slit connecting the recess to the outside and connected in the circumferential direction, the fixing member having a supporting plate portion extending on both sides of the slit and having an insertion hole through which a fixing screw is inserted, and a pair of insertion portions protruding from the supporting plate portion and inserted into the recess through the slit together with the membrane, the pair of insertion portions facing each other on either side of the insertion hole and having locking pieces at their tips that lock onto the edge of the slit, the fixing member being characterized in that the fixing screw inserted into the insertion hole presses the pair of insertion portions in directions away from each other, causing the locking pieces to lock onto the edge of the slit.

[0055] According to the unit curtain wall of aspect 5, the membrane is inserted into the recess through the slit of the fixing frame together with the pair of insertion parts of the fixing member, and the fixing screws inserted into the insertion holes of the board parts on both sides of the slit press the pair of insertion parts inserted together with the membrane in directions away from each other, and the locking pieces lock onto the edges of the slit, thereby fixing the membrane. This makes it possible to fix the membrane to the fixing frame without drilling holes in the membrane for the screws to pass through.

[0056] Aspect 6: A unit curtain wall as described in Aspect 4, wherein the outer perimeter frame and the fixed frame are arranged side by side in the front view direction, the outer perimeter frame has an outer perimeter frame protruding piece that protrudes toward the fixed frame, the fixed frame has a fixed frame protruding piece that protrudes toward the outer perimeter frame and a fixed frame opposing piece that faces the fixed frame protruding piece with a gap in the front view direction, the outer perimeter frame protruding piece and the fixed frame protruding piece abut opposite each other in the front view direction and are fixed by the mounting screw that penetrates in the front view direction, and the tip of the fixed frame opposing piece engages with the tip of the mounting screw.

[0057] According to the unit curtain wall of the sixth aspect, the outer perimeter frame and the fixed frame, which are arranged side by side in the front-facing direction, are fixed by mounting screws that penetrate the front-facing direction and engage with the tips of the mounting screws. By tightening the mounting screws, the movement of the tips of the fixed frame facing pieces can be restricted. Therefore, the fixed frame facing pieces prevent the tips of the screws from being exposed, and also prevent the fixed frame facing pieces from warping or lifting. This makes it possible to provide a unit curtain wall with superior design. [Explanation of symbols]

[0058] 1 unit curtain wall, 2 double glazing (inner skin, panel), 3 Mesh material (outer skin), 4 Peripheral frame, 5 Gasket, 30 Fixed frame, 32b recess, 32e slit, 32g inner circumferential cover part (fixed frame facing piece), 32h fixed frame protruding piece, 32j fixed frame extending piece, 34 fixed member, 34a frame portion, 34b insertion portion, 34c insertion hole, 35 fixing screw, 36 mounting screw, 41f outer frame protruding piece, 43 outer edge (edge),

Claims

1. a membrane disposed on the outdoor side to form an outer skin; a panel that forms an inner skin and is arranged on the indoor side and has higher rigidity than the membrane; an outer periphery frame that holds the outer periphery of the panel and the membrane and is supported by a building structure; A unit curtain wall characterized by having:

2. The unit curtain wall according to claim 1, A unit curtain wall characterized in that the membrane is attached to the outer perimeter frame with its peripheral edge fixed to a fixed frame.

3. The unit curtain wall according to claim 2, A unit curtain wall characterized in that the fixed frame is fixed via a gasket by a batten attached to the outer peripheral frame.

4. The unit curtain wall according to claim 2, A unit curtain wall characterized in that the fixed frame is attached to the outer perimeter frame with mounting screws.

5. The unit curtain wall according to any one of claims 2 to 4, the membrane is fixed by a fixing member attached to the fixing frame; the fixed frame has a recessed portion that is connected in a circumferential direction and a slit that communicates the recessed portion with the outside and is connected in the circumferential direction, The fixing member has a plate portion having an insertion hole through which a fixing screw is inserted and extending across both sides of the slit, and a pair of insertion portions protruding from the plate portion and inserted into the recess through the slit together with the membrane, The pair of insertion portions face each other on both sides of the insertion hole, and have locking pieces at their tips that are locked to the edges of the slits, The fixing member is characterized in that the fixing screw inserted into the insertion hole presses the pair of insertion portions in directions away from each other, so that the locking piece is locked to the edge of the slit.

6. The unit curtain wall according to claim 4, The outer peripheral frame and the fixed frame are arranged side by side in a prospective direction, the outer peripheral frame has an outer peripheral frame protruding piece that protrudes toward the fixed frame, the fixed frame has a fixed frame protruding piece that protrudes toward the outer peripheral frame, and a fixed frame opposing piece that faces the fixed frame protruding piece with a gap in the viewing direction, the outer peripheral frame protruding piece and the fixed frame protruding piece are fixed by the mounting screw that penetrates in the find direction while being in contact with each other in the find direction, A unit curtain wall characterized in that the tip of the fixed frame opposing piece engages with the tip of the mounting screw.

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