Remodeling fitting and remodeling fitting construction method

Abstract

To provide a remodeling fitting capable of improving efficiency of a construction work and saving a construction cost and a remodeling fitting construction method.SOLUTION: A remodeling fitting is formed by fitting a new window frame to the inside of an existing window frame. The existing window frame has an existing mullion, a first existing vertical frame disposed on one side part of the existing mullion, and a second existing vertical frame disposed on the other side part of the existing mullion. The new window frame has: a first vertical frame supported by the first existing vertical frame; a second vertical frame supported by the second existing vertical frame; a first architrave supported on an indoor side of the first vertical frame; and a second architrave supported on an indoor side of the second vertical frame. The first architrave and the second architrave have protruding pieces that protrude so as to face each other on a side closer to the indoor than an indoor side aspect face of the existing mullion.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a remodeling fixture and a method for installing the remodeling fixture. [Background technology]

[0002] BACKGROUND ART Buildings such as buildings and houses are sometimes equipped with a series of windows arranged in a row. The series of windows has a mullion that stands up between the left and right window frames (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 2706640 Summary of the Invention [Problem to be solved by the invention]

[0004] The fixtures in Patent Document 1 require the existing mullions to be cut and removed before installing new window frames, making the renovation work extensive and expensive. Furthermore, this type of construction requires new waterproofing and exterior treatments to be applied to the cut sections of the mullions, further increasing renovation costs.

[0005] The present invention has been made in consideration of the problems of the prior art described above, and aims to provide a remodeling fixture and a construction method for remodeling fixtures that can improve the efficiency of construction work and reduce construction costs. [Means for solving the problem]

[0006] The renovated fixture according to the first aspect of the present invention is a renovated fixture in which a new window frame is attached to the inside of an existing window frame, wherein the existing window frame has an existing post, a first existing vertical frame provided on one side of the existing post, and a second existing vertical frame provided on the other side of the existing post, and the new window frame has a first vertical frame supported by the first existing vertical frame, a second vertical frame supported by the second existing vertical frame, a first frame supported on the interior side of the first vertical frame, and a second frame supported on the interior side of the second vertical frame, and the first frame and the second frame each have protruding pieces that protrude opposite each other on the interior side of the room beyond the interior-facing surface of the existing post.

[0007] A second aspect of the present invention relates to a method for installing renovated fittings, which involves attaching a new window frame to an existing window frame, and includes the steps of supporting a first vertical frame on a first existing vertical frame provided on one side of an existing post; supporting a second vertical frame on a second existing vertical frame provided on the other side of the existing post; connecting a first frame to the interior side of the first vertical frame and positioning the protruding piece provided on the first frame on the interior side of the existing post; connecting a second frame to the interior side of the second vertical frame and positioning the protruding piece provided on the second frame on the interior side of the existing post; and positioning the protruding pieces of the first frame and the second frame so that they face each other. [Effects of the Invention]

[0008] According to the present invention, the efficiency of construction work can be improved and construction costs can be reduced. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a cross-sectional view of the renovated fitting according to the first embodiment. [Figure 2] FIG. 2 is a vertical cross-sectional view of the renovated fixture shown in FIG. 1 at a fixed window. [Figure 3] FIG. 2 is a vertical cross-sectional view of the sliding window of the remodeled fixture shown in FIG. 1. [Figure 4] FIG. 2 is an enlarged cross-sectional view of the existing mullion and its surrounding area of ​​the renovated fixture shown in FIG. 1. [Figure 5] 10 is an enlarged cross-sectional view of a gap covering member and its surrounding area according to a first modified example. FIG. [Figure 6] 10 is an enlarged cross-sectional view of a gap covering member and its surrounding area according to a second modified example. FIG. [Figure 7] FIG. 11 is an enlarged cross-sectional view of a gap covering member and its surrounding area according to a third modified example. [Figure 8] 1 is a flowchart showing an example of a procedure for constructing a fitting for remodeling according to the first embodiment. [Figure 9] This is an enlarged cross-sectional view of the existing mullion and its surrounding area of ​​the renovated building fixture related to the second embodiment. [Figure 10] 10 is an enlarged cross-sectional view of a gap concealing member and its surrounding area according to a first modified example of the remodeled fitting shown in FIG. 9. FIG. [Figure 11] 10 is an enlarged cross-sectional view of a gap concealing member and its surrounding area according to a second modified example of the remodeled fitting shown in FIG. 9. FIG. [Figure 12] 10 is an enlarged cross-sectional view of a gap concealing member and its surrounding area according to a third modified example of the remodeled fitting shown in FIG. 9. FIG. [Figure 13] 10 is a flowchart showing an example of a procedure for constructing a fitting for remodeling according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a remodeling fixture and a method for installing the same according to the present invention will be described in detail below with reference to the accompanying drawings.

[0011] First, a remodeling fitting 10 according to a first embodiment will be described.

[0012] As shown in Figures 1 to 3, the remodeled fitting 10 according to this embodiment is a fitting in which an existing fitting that was previously installed in an opening 12a of a building's skeleton 12 has been removed, leaving only the window frame (existing window frame 14), and a new window frame (new window frame 16) and shoji screens (new shoji screens 18-20) attached to the inside of the remaining existing window frame 14. The remodeled fitting 10 is, for example, a row of windows installed in window renovation work for a building or apartment complex, and may be a row of three or more windows.

[0013] In this application, the "inward direction" refers to the depth direction of the renovated fittings 10, 10A (the direction indicated by arrow Z in the figure), and the "inward surface" refers to a surface extending along the inward direction. The "inward direction" refers to a direction perpendicular to the inward direction. In the case of vertical frames 26d, 27c, etc., which are elongated in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction (the direction indicated by arrow X in the figure). In the case of upper frames 26a, 27a, etc., which are elongated in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction (the direction indicated by arrow Y in the figure). The "inward surface" refers to a surface along the inward direction. The "inner frame side" refers to the inner portion of the newly installed frames 26, 27, etc., which are frame-shaped members. The "outer frame side" refers to the outer portion of the newly installed frames 26, 27, etc., which are frame-shaped members. The "inward frame direction" refers to the direction from the outer frame side of the frame-shaped member toward the inner frame side. The "outer frame direction" refers to the direction from the inner frame side of the frame-shaped member toward the outer frame side.

[0014] First, the existing window frame 14 will be described.

[0015] The existing window frame 14 comprises an existing mullion 22, and a first existing frame 24 and a second existing frame 25 that are lined up on either side of the existing mullion 22. The existing window frame 14 is the window frame of an existing fixture that was installed before the construction of the renovated fixture 10, and for example, existing shoji screens were supported on the existing frames 24, 25, respectively, forming a row of windows with a fixed window and a sliding window lined up on the left and right.

[0016] 1 and 4, the existing mullions 22 have a main body 22a with a generally T-shaped cross section and an interior portion 22b connected to the interior side of the main body 22a. The main body 22a and the interior portion 22b are extruded shapes made of, for example, aluminum alloy. The existing mullions 22 are fixed to the frame 12 before the new window frame 16 is installed.

[0017] The mullion body 22a has a sighting plate portion 22a1 and a sighting plate portion 22a2. The sighting plate portion 22a1 is arranged along the XY direction and forms the exterior sighting surface 22c of the existing mullion 22. The sighting plate portion 22a2 is arranged along the YZ direction and protrudes into the room from the center of the left and right of the sighting plate portion 22a1. The interior portion 22b has a connecting plate 22b1 and a sighting plate 22b2. The connecting plate 22b1 is connected to the interior end of the sighting plate portion 22a2 with screws 23. The sighting plate 22b2 is connected to the interior surface of the connecting plate 22b1 with screws 23. The sighting plate 22b2 forms the interior sighting surface 22d of the existing mullion 22.

[0018] As shown in Figures 1, 2 and 4, the first existing frame 24 is located on the left side of the existing mullion 22 in Figure 1, and constituted the window frame of the fixed window before renovation. The first existing frame 24 is made up of an existing upper frame 24a, an existing lower frame 24b, and existing left and right vertical frames 24c, 24d, which are connected in a four-sided frame shape to form a rectangular opening.

[0019] As shown in Figures 1, 3, and 4, the second existing frame 25 is located to the right of the existing mullion 22 in Figure 1 and constituted the window frame of the sliding window before the renovation. The second existing frame 25 is surrounded on all four sides by an existing upper frame 25a, an existing lower frame 25b, and existing left and right vertical frames 25c, 25d, forming a rectangular opening. Each of the frames 24a-24d, 25a-25d is, for example, an extruded aluminum alloy member, and is fixed to the frame 12 before the new window frame 16 is installed.

[0020] The existing mullions 22 and existing frames 24, 25 are part of the existing fixtures that were fixed to the skeleton 12 before the renovation, and various configurations are assumed in addition to those shown in Figures 1 to 4. In other words, the shape, structure, projected dimensions (Z-direction dimensions), and sight dimensions (X-direction dimensions) of the existing mullions 22 and existing frames 24, 25 are not limited to those described in this embodiment.

[0021] Next, the new window frame 16 will be described.

[0022] The new window frame 16 includes a first new frame 26 and a second new frame 27 arranged on the left and right sides, sandwiching the existing mullion 22 and existing vertical frames 24d, 25c.

[0023] First, as shown in Figures 1, 2, and 4, the first new frame 26 is provided on the left side of the existing mullion 22 in Figure 1 and attached to the inside of the first existing frame 24, forming the window frame of the fixed window after renovation. The first new frame 26 is made up of an upper frame 26a, a lower frame 26b, and left and right vertical frames 26c, 26d connected in a four-sided frame shape to form a rectangular opening. Each of the frames 26a to 26d is an extruded aluminum alloy member, for example, and has a composite structure with a resin material attached to the portion exposed to the interior of the room.

[0024] As shown in Figure 2, the upper frame 26a is connected to the existing upper frame 24a of the first existing frame 24 via a cover material 28, and is thereby supported by the main body 12. The cover material 28 may be omitted, in which case the upper frame 26a may be fixed directly to the existing upper frame 24a. The cover material 28 is, for example, an extruded aluminum alloy member, and is formed with a generally T-shaped cross section. The cover material 28 has a fin 28a that protrudes outside the frame from a position closer to the outside of the room than the center of the plate portion extending in the projection direction, and a plate piece 28b that protrudes inside the frame from the outside end.

[0025] The upper frame 26a has a frame outer portion 31 and a frame inner portion 32 connected by screws 30, forming a hollow space between them. The frame outer portion 31 is connected to the cover material 28 using screws 29. A pair of protruding pieces 32a, 32b is provided in the frame inner surface in the frame inner portion 32 in the frame inner direction. The protruding pieces 32a, 32b hold the face material 18a of the newly installed shoji screen 18. A resin attachment 32b1 is attached to the protruding piece 32b on the indoor side. A resin angle 32b2 is attached to the indoor end of the frame inner portion 32. Reference numeral 33 in Figure 2 denotes a screw that connects the cover material 28 to the existing upper frame 24a.

[0026] 2, the lower frame 26b is connected with screws 34 to attachment members 26b1 that are screwed to the inside of the existing lower frame 24b of the first existing frame 24, and is thereby supported by the existing lower frame 24b. The lower frame 26b has a cross-sectional shape that is bent in a generally stepped manner from the outside to the inside of the room.

[0027] As shown in Figure 4, the vertical frame 26d is connected to the existing vertical frame 24d of the first existing frame 24 via the cover material 36, and is thereby supported by the existing mullions 22. In other words, the first new frame 26 has a new vertical member 37 made up of the vertical frame 26d and the cover material 36, and this new vertical member 37 is supported by the existing vertical frame 24d. The new vertical member 37 may be made up of only the vertical frame 26d without using the cover material 36, or may include other members in addition to the vertical frame 26d and the cover material 36.

[0028] The cover material 36 is, for example, an extruded aluminum alloy member having a generally T-shaped cross section. The cover material 36 has a projection plate portion 36a extending along the Z direction, a fin 36b protruding from a position closer to the exterior side of the frame than the center of the projection plate portion 36a, and a protruding piece 36c bent from the exterior end of the projection plate portion 36a toward the interior side of the frame. The projection plate portion 36a of the cover material 36 is connected to the existing vertical frame 24d using screws 38.

[0029] The vertical frame 26d is configured in a generally rectangular cylindrical shape by a frame outer portion 42 and a frame inner portion 43 that are connected to each other. A pair of protruding pieces 43a, 43b is provided in the projection direction on the frame inner surface of the frame inner portion 43. The protruding pieces 43a, 43b hold the face material 18a of the newly installed shoji screen 18. A resin attachment 43b1 is attached to the protruding piece 43b on the indoor side. A resin angle 44 is attached to the indoor end of the frame inner portion 43. Reference numeral 45 in FIG. 4 denotes a screw that connects the vertical frame 26d (frame inner portion 43) and the cover material 36. Reference numeral 46 in FIG. 4 denotes a screw that connects the frame outer portion 42 and frame inner portion 43 of the vertical frame 26d.

[0030] As shown in Fig. 1, the vertical frame 26c is connected to the existing vertical frame 24c of the first existing frame 24 via a cover material with screws 47. The vertical frame 26c may have a bilaterally symmetrical shape to the above-mentioned vertical frame 26d. Furthermore, the cover material connected to the vertical frame 26c may be the same as or similar to the cover material 36 connected to the other vertical frame 26d described above, except that it is bilaterally symmetrical. Therefore, the same reference numeral 36 is used in Fig. 1 and a detailed description thereof will be omitted.

[0031] 1 and 2, the new shoji screen 18 of this embodiment is a fixed window in which a face material 18a is fitted into each of the frames 26a to 26d of the first new frame 26. The face material 18a is, for example, a double-glazed glass in which two glass panes are arranged inside and outside the room with a spacer in between.

[0032] Here, the waterproof structure of the first existing frame 24 and the first new frame 26 will be described.

[0033] As shown in Fig. 2, the space between the upper frames 24a, 26a is sealed by water-stopping materials 48, 49. The water-stopping material 48 seals water between the fin 28a of the cover material 28 and the exterior-facing surface 24a1 of the existing upper frame 24a. The water-stopping material 49 seals water between the interior-facing surface 28b1 of the plate piece 28b of the cover material 28 and the exterior-facing surface 26a1 of the upper frame 26a.

[0034] As shown in Figure 2, the space between the lower frames 24b and 26b is waterproofed by waterproofing material 50 attached to the lower end of the lower frame 26b on the outdoor side, with the tip protruding toward the existing lower frame 24b.

[0035] As shown in Fig. 4, the space between the vertical frames 24d, 26d is waterproofed by water-stopping materials 52, 53. The water-stopping material 52 prevents water from entering between the fin 36b of the cover material 36 and the exterior-facing surface 24d1 of the existing vertical frame 24d. The water-stopping material 53 prevents water from entering between the interior-facing surface 36d of the protruding piece 36c of the cover material 36 and the exterior-facing surface 26d1 of the vertical frame 26d. As shown in Fig. 1, the space between the vertical frames 24c, 26c may be symmetrical to the water-stopping structure between the vertical frames 24d, 26d shown in Fig. 4, and therefore the water-stopping materials are denoted by the same reference numerals 52, 53 and a detailed description thereof will be omitted.

[0036] In this way, the renovated fitting 10 is waterproofed between the first new frame 26 and the first existing frame 24, and has high watertightness performance.

[0037] Next, as shown in Figures 1, 3, and 4, the second new frame 27 is provided to the right of the existing mullion 22 in Figure 1 and attached to the inside of the second existing frame 25, forming the window frame of the renovated sliding window. The second new frame 27 is made up of an upper frame 27a, a lower frame 27b, and left and right vertical frames 27c, 27d connected in a frame shape all around, forming a rectangular opening. Each of the frames 27a to 27d is an extruded aluminum alloy member, for example, and has a composite structure with a resin material attached to the portion exposed to the interior of the room.

[0038] As shown in Figure 3, the upper frame 27a is connected to the existing upper frame 25a of the second existing frame 25 via a cover material 56, and is thereby supported by the main body 12. The cover material 56 may be omitted, in which case the upper frame 27a may be fixed directly to the existing upper frame 25a. The cover material 56 is, for example, an extruded aluminum alloy member, and is formed with a generally T-shaped cross section. The cover material 56 has a fin 56a that protrudes outside the frame from a position closer to the outside of the room than the center of the plate portion extending in the projection direction, and a plate piece 56b that protrudes inside the frame from the outside end.

[0039] The upper frame 27a has a pair of rails 58a, 58b in the projection direction protruding from the frame inner projection surface. A resin attachment material 58b1 is attached to the indoor side of the rail 58b. Reference symbol 59 in FIG. 3 denotes a screw that connects the cover material 56 to the existing upper frame 25a. Reference symbol 60 in FIG. 3 denotes a screw that connects the upper frame 27a to the existing upper frame 25a. In the configuration example shown in FIG. 3, the cover material 56 and the upper frame 27a are connected to a metal reinforcing material screwed to the existing upper frame 25a with screws 59, 60, thereby fixing them to the existing upper frame 25a; however, the screws 59, 60 may also be fastened directly to the existing upper frame 25a.

[0040] As shown in Figure 3, the lower frame 27b is fixed with screws 61 to attachment members 27b1 screwed to the inside of the existing lower frame 25b of the second existing frame 25, thereby supporting the existing lower frame 25b. The lower frame 27b has a cross-sectional shape that is bent in a generally stepped pattern from the outside to the inside of the room. Like the upper frame 27a, the lower frame 27b has a pair of rails 62a, 62b in the projection direction that protrudes from the inside frame projection surface. The rail 62a, together with the rail 58a, guides the newly installed shoji screen 19 on the outside of the room. The rail 62b, together with the rail 58b, guides the newly installed shoji screen 20 on the inside of the room.

[0041] As shown in Figure 4, the vertical frame 27c is connected to the existing vertical frame 25c of the second existing frame 25 via the attachment material 63 and the cover material 64, and is thereby supported by the existing mullions 22. In other words, the second new frame 27 has a new vertical member 65 made up of the vertical frame 27c, the attachment material 63, and the cover material 64, and this new vertical member 65 is supported by the existing vertical frame 25c. The new vertical member 65 may be configured without using one or both of the attachment material 63 and the cover material 64.

[0042] The attachment member 63 is, for example, an extruded aluminum alloy member formed with a generally crank-shaped cross section. The attachment member 63 has a projection plate portion 63a extending in the Z direction and a mounting piece 63b formed by bending the outdoor end of the projection plate portion 63a toward the outside of the frame and then bending it further toward the outside. The mounting piece 63b of the attachment member 63 is connected to the existing vertical frame 25c using screws 66.

[0043] The cover material 64 is, for example, an extruded aluminum alloy member having a generally T-shaped cross section. The cover material 64 has a projection plate portion 64a extending along the Z direction, a fin 64b protruding from a position closer to the exterior side of the frame than the center of the projection plate portion 64a, and a protruding piece 64c protruding from the exterior end of the projection plate portion 64a toward the interior side of the frame. The projection plate portion 64a of the cover material 64 is connected to the attachment material 63 using screws 67 and 68.

[0044] The vertical frame 27c extends in the Z direction and has a hollow portion formed in a position closer to the inside of the room. The vertical frame 27c has a fin 69 in a position closer to the outside of the room on the inner visible surface of the frame. The fin 69 is swallowed up by the frame stile 19b of the newly installed shoji screen 19 on the outside of the room. The vertical frame 27c is fastened together with the cover material 64 to the attachment material 63 using a screw 68. The vertical frame 27c has its inside end connected with a screw 71 to an L-shaped connecting material 70 that is screwed to the attachment material 63. A resin angle 72 is connected with a screw 73 to the inside end of the frame inner visible surface of the vertical frame 27c.

[0045] As shown in Figure 1, the vertical frame 27d is connected to the existing vertical frame 25d of the second existing frame 25 via attachment materials and cover materials with screws 74. The vertical frame 27d may have a shape symmetrical to the above-mentioned vertical frame 27c. Furthermore, the attachment materials and cover materials connected to the vertical frame 27d may be the same or similar to the attachment materials 63 and cover materials 64 connected to the other vertical frame 27c described above, except that they are symmetrical to the left and right. Therefore, the same reference numerals 63 and 64 are used in Figure 1, and detailed description thereof will be omitted.

[0046] As shown in Figures 1 and 3, the new shoji screens 19, 20 of this embodiment are double sliding windows that are lined up inside and outside the room inside the second new frame 27 and are supported so that they can slide in the X direction. The new shoji screen 19 on the outside of the room has a structure in which a face material 19a is joined to a frame 19b on all four sides. The new shoji screen 20 on the inside of the room has a structure in which a face material 20a is joined to a frame 20b on all four sides. The face materials 19a, 20a are, for example, double-glazed glass made by arranging two glass panes on the inside and outside of the room with a spacer in between. A screen door device 80 supported by frames 27a to 27d is installed on the outside of the new shoji screens 19, 20.

[0047] Here, the waterproof structure between the second existing frame 25 and the second new frame 27 will be described.

[0048] As shown in Figure 3, the space between the upper frames 25a, 27a is sealed by water-stopping materials 75, 76. Water-stopping material 75 seals water between fin 56a of cover material 56 and exterior-facing surface 25a1 of existing upper frame 25a. Water-stopping material 76 seals water between interior-facing surface 56b1 of plate piece 56b of cover material 56 and exterior-facing surface 27a1 of upper frame 27a.

[0049] As shown in Figure 3, the space between the lower frames 25b and 27b is waterproofed by waterproofing material 77 attached to the lower end of the lower frame 27b on the outdoor side, with its tip protruding toward the existing lower frame 25b.

[0050] As shown in Fig. 4, the space between the vertical frames 25d, 27d is waterproofed by water-stopping materials 78, 79. The water-stopping material 78 prevents water from entering between the fin 64b of the cover material 64 and the interior-facing surface 25c1 of the existing vertical frame 25c. The water-stopping material 79 prevents water from entering between the interior-facing surface 64d of the protruding piece 64c of the cover material 64 and the exterior-facing surface 27c1 of the vertical frame 27c. As shown in Fig. 1, the space between the vertical frames 25d, 27d is symmetrical to the water-stopping structure between the vertical frames 25d, 27d shown in Fig. 4, and therefore the water-stopping materials are denoted by the same reference numerals 78, 79 and a detailed description thereof will be omitted.

[0051] In this way, the renovated fitting 10 has a watertight seal between the second new frame 27 and the second existing frame 25, giving it high watertightness. Reference symbol 81 in Figure 4 is a waterproof sheet. The waterproof sheet 81 is provided to cover the indoor side portion from the existing vertical frame 24d to the vertical frame 26d. The waterproof sheet 81 is further provided to cover the indoor side portion from the existing vertical frame 25c to the vertical frame 27c.

[0052] Next, the specific structure and effects of the existing post 22 and the outdoor portion of its surrounding area will be described.

[0053] As shown in Figure 4, in the renovated fitting 10, the exterior facing surface 22c of the existing mullion 22 is exposed to the outside. The facing panel 22a1 that forms the exterior facing surface 22c of the existing mullion 22 has water-stopping materials 82 attached to the left and right ends of its interior facing surface. Each water-stopping material 82 is in close contact with the exterior facing surfaces 24d1, 25c2 of the existing vertical frames 24d, 25c, respectively. This water-stopping structure between the existing mullion 22 and the existing vertical frames 24d, 25c was installed in the existing fitting before the construction of the renovated fitting 10.

[0054] The renovated fitting 10 of this embodiment maintains the waterproof structure between the existing mullion 22 and the existing vertical frames 24d, 25c, while attaching the new vertical members 37, 65 to the facing surfaces 24d1, 25c1 of the existing vertical frames 24d, 25c via waterproofing materials 52, 78. This ensures that the renovated fitting 10 ensures a watertight seal between each new vertical member 37, 65 and the existing vertical frames 24d, 25c, even if the facing dimensions of the existing mullion 22 vary depending on the construction site. This is because the waterproof structure for the existing vertical frames 24d, 25c can be established by simply providing the waterproofing materials 52, 78 between the new vertical members 37, 65 and their facing surfaces 24d1, 25c1, regardless of their relative positions in the facing direction (X direction). As a result, the renovated fitting 10 ensures waterproofing performance for the exterior portion of the existing mullion 22 and its surrounding areas.

[0055] As shown in Figures 2 to 4, the renovated fitting 10 retains the existing mullions 22 and existing vertical frames 24d, 25c, as well as the existing top frames 24a, 25a. The renovated fitting 10 has waterproofing materials 48, 75 installed on the exterior facing surfaces 24a1, 25a1 of the existing top frames 24a, 25a, and new top frames 26a, 27a (covering materials 28, 56) attached to them. The existing vertical frames 24d, 25c and the existing top frames 24a, 25a were components that had been installed on the existing fitting before the renovated fitting 10, and the facing surfaces between the vertical and horizontal surfaces are arranged to be approximately flush with each other.

[0056] Therefore, in the renovated fitting 10, the water-stopping material 52 between the new vertical member 37 and the existing vertical frame 24d and the water-stopping material 48 between the new upper frame 26a (covering material 28) and the existing upper frame 24a are continuous, forming vertical and horizontal water-stopping lines. Furthermore, in the renovated fitting 10, the water-stopping material 78 between the new vertical member 37 and the existing vertical frame 25c and the water-stopping material 75 between the new upper frame 27a (covering material 56) and the existing upper frame 25a are continuous, forming vertical and horizontal water-stopping lines. As a result, the renovated fitting 10 further improves the water-stopping performance of the exterior part of the existing mullion 22 and its surrounding area.

[0057] Furthermore, the remodeled fitting 10 employs a configuration in which the water-stopping materials 52, 78 are held against the existing vertical frames 24d, 25c via the cover materials 36, 64. Therefore, the remodeled fitting 10 can easily adjust the relative connection position between the new vertical frames 24d, 25c and the cover materials 36, 64 in the projection direction during construction, while still ensuring a water-stopping structure using the water-stopping materials 52, 78. Since the new vertical frames 24d, 25c serve as supports for the new shoji screens 18-20, high precision is required for their installation position in the projection direction. This facilitates position adjustment. Meanwhile, the cover materials 36, 64 do not require position adjustment relative to the existing vertical frames 24d, 25c, allowing for reliable installation of the water-stopping materials 52, 78. The renovated fitting 10 may be configured to hold the waterproofing materials 52, 78 directly between the new vertical frames 24d, 25c and the existing vertical frames 24d, 25c without using the cover materials 36, 64 (attachment materials 63).

[0058] Next, the specific structure and effects of the existing post 22 and the indoor side of its surrounding area will be explained.

[0059] As shown in Figure 4, the renovated fitting 10 includes frames 84, 85 that conceal the existing mullions 22, the existing vertical frames 24d, 25c, and the cover materials 36, 48 from the interior side. The frames 84, 85 are extruded resin profiles each formed into a substantially L-shaped cross section, and are made of, for example, polyvinyl chloride (PVC).

[0060] The frame 84 has a mounting portion 84a that extends along the Z direction, and a protruding piece 84b that protrudes in the X direction from the room-side end of the mounting portion 84a toward the existing mullion 22. The mounting portion 84a is attached using a screw 86 to a resin angle 44 that is attached to the room-side end of the vertical frame 26d. The protruding piece 84b is positioned on the room side of the room-side visible surface 22d of the existing mullion 22 in the Y direction, and protrudes to a position where it overlaps with the existing mullion 22 in the X direction. The tip of the protruding piece 84b is fixed to a base material 88 using a screw 87.

[0061] In the configuration example shown in Figure 4, mullion bases 90a and 90b, which have a roughly U-shaped cross section and are arranged approximately symmetrically with respect to each other, and a mullion cover 91 attached to the mullion base 90b on the indoor side are provided on the indoor side of the existing mullion 22. The mullion bases 90a and 90b and the mullion cover 91 are made of, for example, extruded aluminum alloy profiles. The mullion cover 91 is also fixed with screws 92 to angle portions 24d2 and 25c3 protruding from the indoor-facing surfaces of the existing vertical frames 24d and 25c. The base material 88 is made of, for example, wood, and is fixed to the mullion cover 91 with screws 93, thereby supporting the existing mullion 22.

[0062] The frame 85 may have a bilaterally symmetrical structure to the above-described frame 84. That is, the frame 85 has a mounting portion 85a attached to the resin angle 72 of the vertical frame 27c with a screw 86, and a protruding piece 85b that protrudes toward the interior of the existing mullion 22 and is fixed to a base material 88 with a screw 87.

[0063] As shown in Figure 4, the protruding pieces 84b, 85b of the left and right frames 84, 85 protrude from the interior facing surface 22d of the existing mullion 22 so as to face each other on the interior side. The protruding pieces 84b, 85b have multiple break grooves 84c, 85c aligned in the protruding direction on their respective back surfaces (exterior facing surfaces), allowing the protruding length to be easily adjusted. This allows the tips of the protruding pieces 84b, 85b to be as close together as possible.

[0064] As a result, the existing metal mullion 22, existing vertical frames 24d, 25c, and cover materials 36, 48 are concealed from the interior side by the resin frames 84, 85, providing high appearance quality and thermal insulation for the renovated fitting 10. In addition, the frames 84, 85 are provided with breaking grooves 84c, 85c, which makes it possible to easily control the gap G between them regardless of the visible dimension (X-direction dimension) of the existing mullion 22.

[0065] However, although the tips of the protruding pieces 84b, 85b can be brought close to each other, it is difficult to completely eliminate the gap G. Therefore, the remodeled fitting 10 of this embodiment may further be configured with a batten 94 as a gap-concealing member that hides the gap G from the interior side. The batten 94 is, for example, a thin resin plate formed of the same material and color as the frames 84, 85 and extending in the height direction (Y direction) of the frames 84, 85. The batten 94 is fixed to the interior surfaces of the protruding pieces 84b, 85b with double-sided tape, adhesive, or the like, while spanning the gap G. By including the batten 94, the remodeled fitting 10 can conceal the gap G between the protruding pieces 84b, 85b of the left and right frames 84, 85, further improving the appearance quality.

[0066] Instead of the batten 94, a sheet-like member 96 (see FIG. 5) may be used as a gap-concealing member to hide the gap G. The sheet-like member 96 is, for example, a thin resin laminate sheet, available in a variety of colors and materials. The sheet-like member 96 can span the gap G and cover almost the entire interior surface from the mounting portions 84a, 85a to the protruding pieces 84b, 85b. The sheet-like member 96 may also cover only the interior surface of the protruding pieces 84b, 85b. The sheet-like member 96 does not create unevenness like the batten 94, further improving the appearance quality of the renovated fitting 10. However, applying the sheet-like member 96 over a large area while preventing wrinkles and lifting is time-consuming. In contrast, the batten 94 has the advantage of high installation efficiency because it does not create wrinkles or lifting like the sheet-like member 96.

[0067] As a gap-hiding member for hiding the gap G, a configuration including a trim 98 shown in FIG. 6 may be used instead of the batten 94 or sheet-like member 96. The trim 98 is, for example, a block-shaped decorative material made of wood or resin. In the configuration example shown in FIG. 6, the gap G between the left and right protruding pieces 84b, 85b is larger than in the configuration examples shown in FIGS. 4 and 5. The trim 98 is interposed in this larger gap G to hide the gap between the protruding pieces 84b, 85b. The trim 98 is fixed to the mullion cover 91 using, for example, a screw similar to the screw 93 in FIG. 4, double-sided tape, adhesive, or the like. The trim 98 can completely close the gap G by sealing the gap between the tip of the protruding piece 84b and one of the visible surfaces with a sealant 100a and sealing the gap between the tip of the protruding piece 85b and the other of the visible surfaces with a sealant 100b.

[0068] Instead of the trim 98, a configuration may be adopted in which a trim 102 shown in FIG. 7 is provided as a gap-hiding member for hiding the gap G. The trim 102 is, for example, an extruded resin profile. The trim 102 is positioned in the large gap G between the protruding pieces 84b and 85b, and covers the gap between the protruding pieces 84b and 85b. The trim 102 is, for example, formed of a rectangular tubular member having a pair of hollow sections, and has plate pieces 102a and 102b protruding to the outside from the left and right ends of its exterior-facing surface. The trim 102 is used in place of the mullion cover 91 shown in FIG. 4, and the plate pieces 102a and 102b are fixed to the existing vertical frames 24d and 25c and the mullion base 90b with screws 92. In the parting material 102, similar to the parting material 98, the gaps between the tips of the protruding pieces 84b and 85b and the respective projection surfaces are sealed with sealing materials 100a and 100b.

[0069] The trim materials 98, 102, like the batten 94, have the advantage of being highly efficient to install because they do not wrinkle or lift like the sheet-like member 96. Furthermore, the trim materials 98, 102 are made of wood, resin, or the like, which allows for high appearance quality and heat insulation.

[0070] Next, one procedure for constructing the fitting 10 will be described with reference to the flowchart shown in FIG.

[0071] First, in step S1 in FIG. 8, of the existing fittings attached to the skeleton 12, the existing mullions 22 and existing frames 24, 25 are left in place, and the existing shoji screens are removed.

[0072] In step S2, the cover materials 28, 36, 56, 64 and the attachment materials 26b1, 27b1, 63 are connected to the remaining existing frames 24, 25. Here, the cover materials 28, 36, 56, 64 and the attachment materials 26b1, 27b1, 63 are not frame-shaped components. Therefore, these materials can be easily connected individually to the existing frames 24, 25 from the indoor side at the construction site, which increases construction efficiency (see Figures 2 to 4). At this time, water-stopping materials 48, 52, 75, 78 are used to appropriately seal water between the cover materials 28, 36, 56, 64 and the existing upper frames 24a, 25a and existing vertical frames 24c, 24d, 25c, 25d.

[0073] In step S3, the new frames 26, 27 that make up the new window frame 16 are connected to the cover materials 28, 36, 56, 64 and the attachment materials 26b1, 27b1, 63. As shown in Figures 2 to 4, the indoor-facing surfaces 28b1, 36d, 56b1, 64d of the cover materials 28, 36, 56, 64 serve as the pressing surfaces for the new upper frames 26a, 27a and vertical frames 26c, 26d, 27c, 27d, and water-stopping materials 49, 53, 76, 79 are appropriately held here. Therefore, the new frames 26, 27, which have been framed in advance in a factory or the like, can be easily attached to the existing frames 24, 25 from the indoor side, further improving construction efficiency. Furthermore, when attaching the new lower frames 26b, 27b to the existing frames 24, 25 from the indoor side, the attachment materials 26b1, 27b1 can be first inserted into the inside of the frame using a kendon, making it easy to install the new frames, including the tension materials 50, 77.

[0074] Finally, in step S4, the left and right frames 84, 85 are attached to the vertical frames 26d, 27c while the lengths of the protruding pieces 84b, 85b are adjusted appropriately using the breaking grooves 84c, 85c. The gap G is then hidden with a gap-hiding member such as a batten 94, a sheet-like member 96, or a trim material 98, 102. This hides the interior visible surface 22d of the existing mullion 22 with the frames 84, 85, etc., completing the construction of the renovated fitting 10 with high appearance quality and thermal insulation.

[0075] Although the exterior facing surface 22c of the existing mullion 22 is exposed to the outside, the exterior has less of an impact on appearance and insulation than the interior. Therefore, the renovated fitting 10 does not hide the exterior facing surface 22c of the existing mullion 22, and instead presses the cover materials 36, 64 against the existing vertical frames 24d, 25c via water-stopping materials 52, 78. As a result, the renovated fitting 10 can easily ensure the water-stopping performance of the exterior facing vertical frames 26d, 27d, regardless of the apparent dimensions of the existing mullion 22.

[0076] Next, a remodeling fitting 10A according to a second embodiment will be described.

[0077] As shown in Figure 9, the renovated fitting 10A according to this embodiment differs from the renovated fitting 10 according to the first embodiment described above in the connection structure between the existing mullions 22 and existing vertical frames 24d, 25c and the new vertical members 37, 65. Therefore, the following description of the renovated fitting 10A will mainly focus on the connection structure between the existing mullions 22 and existing vertical frames 24d, 25c and the new vertical members 37, 65. In the renovated fitting 10A according to the second embodiment, elements that have the same or similar functions and effects as the renovated fitting 10 according to the first embodiment will be given the same reference numerals, and detailed description will be omitted.

[0078] First, the configuration and effects of the outdoor portion of the existing mullion 22 and its surrounding area in the renovated fitting 10A will be explained.

[0079] As shown in Figure 9, in the renovated fitting 10A, the vertical frame 26d is connected to the existing vertical frame 24d of the first existing frame 24 via the attachment material 104, and is thereby supported by the existing mullions 22. In other words, the new vertical member 37 of the renovated fitting 10A is composed of the vertical frame 26d and the attachment material 104.

[0080] In the remodeled fitting 10A of this embodiment, the first new frame 26 is configured as a sliding window that slidably supports the new shoji screens 19, 20, and the second new frame 27 is configured as a fixed window that supports the new shoji screen 18. For this reason, the remodeled fitting 10A has a fin 106 on the inner projection surface of the vertical frame 26d that is swallowed up by the stile 20b of the new shoji screen 20 on the indoor side. Also, on the inner projection surface of the vertical frame 27c, protruding pieces 108a, 108b that serve as vertical stiles that hold the face material 18a of the new shoji screen 18 are provided side by side in the projection direction. A resin attachment 43b1 is attached to the indoor side protruding piece 108b.

[0081] The attachment material 104 is, for example, an extruded aluminum alloy profile formed with a generally crank-shaped cross section. The attachment material 104 has a projection plate portion 104a extending along the Z direction, and an attachment piece 104b formed by bending the exterior end of the projection plate portion 104a toward the exterior of the frame and then bending it further toward the exterior. The attachment piece 104b of the attachment material 104 is connected to the existing vertical frame 24d using a screw 110. The vertical frame 26d of the renovated fitting 10A is connected to the exterior surface of the frame of the projection plate portion 104a using a screw 112.

[0082] In the renovated fitting 10A, the vertical frame 27c is connected to the existing vertical frame 25c of the second existing frame 25 via the attachment material 114, and is thereby supported by the existing mullions 22. In other words, the new vertical member 65 of the renovated fitting 10A is composed of the vertical frame 27c and the attachment material 114.

[0083] The attachment material 114 is, for example, an extruded aluminum alloy member, and is formed with a generally crank-shaped cross section. The attachment material 114 has a projection plate portion 114a extending in the Z direction, and an attachment piece 114b formed by bending the exterior end of the projection plate portion 114a toward the exterior of the frame and then bending it further toward the exterior. The attachment piece 114b of the attachment material 114 is connected to the existing vertical frame 25c using a screw 116. The vertical frame 27c of the renovated fitting 10A is fixed to the exterior surface of the projection plate portion 114a using a screw 117.

[0084] In the renovated fitting 10A, the gap between the vertical frames 26d, 27c and the existing vertical frames 24d, 25c is sealed by water-stopping materials 118, 119. The water-stopping material 118 is a waterproof material attached to a pocket portion 26d3 formed on the frame-outside visible surface 26d2 of the vertical frame 26d, closer to the exterior side. The water-stopping material 118 seals water between the frame-outside visible surface 24d1 of the existing vertical frame 24d and the frame-outside visible surface 26d2 of the vertical frame 26d. The water-stopping material 119 is a waterproof material attached to a pocket portion 27c3 formed on the frame-outside visible surface 27c2 of the vertical frame 27c, closer to the exterior side. The water-stopping material 119 seals water between the frame-outside visible surface 25c2 of the existing vertical frame 25c and the frame-outside visible surface 27c2 of the vertical frame 27c. The waterproofing materials 118, 119 may be provided so as to prevent water from flowing between the outdoor facing surfaces 24d1, 25c2 and the outdoor or indoor facing surfaces of the vertical frames 26d, 27c.

[0085] In the renovated fitting 10A, the connection structure and waterproofing structure between the upper frames 26a, 27a and the existing upper frames 24a, 25a are not particularly limited, but may be similar to the connection structure and waterproofing structure between the vertical frames 26d, 27c and the existing vertical frames 24d, 25c shown in Figure 9. In addition, in the renovated fitting 10A, the connection structure and waterproofing structure between the lower frames 26b, 27b and the existing lower frames 24b, 25b are also not particularly limited, but may be similar to the connection structure and waterproofing structure between the lower frames 26b, 27b and the existing lower frames 24b, 25b shown in Figures 2 and 3 above.

[0086] In this way, the renovated fitting 10A has a watertight seal between the first new frame 26 and the first existing frame 24, and has high watertightness.

[0087] Next, the configuration and effects of the existing mullion 22 and the indoor side portion of its surrounding area in the remodeled fitting 10A will be explained.

[0088] 9, the renovated fitting 10A of this embodiment includes frames 120 and 121 that conceal the existing mullions 22, existing vertical frames 24d and 25c, and attachment materials 104 and 114 from the interior side. The frames 120 and 121 are extruded resin profiles each formed into a substantially L-shaped cross section, and are made of, for example, polyvinyl chloride (PVC).

[0089] The frame 120 has an attachment portion 120a along the Z direction and a protruding piece 120b that protrudes in the X direction from the room-side end of the attachment portion 120a toward the existing mullion 22. The attachment portion 120a is attached to the vertical frame 26d and the resin angle 44. The protruding piece 120b has a hollow portion and protrudes in the X direction toward the existing mullion 22. The frame 121 may have a bilaterally symmetrical structure to the frame 120 described above. That is, the frame 121 has an attachment portion 121a that is attached to the vertical frame 27c and a protruding piece 121b that protrudes toward the existing mullion 22.

[0090] The protruding pieces 120b and 121b of the frames 120 and 121 have pockets 120c and 121c at their tips, respectively. Tightening materials 122 and 123 are attached to the pockets 120c and 121c, respectively.

[0091] Similar to the configuration examples shown in Figures 6 and 7, the gap G between the protruding pieces 120b, 121b of the frames 120, 121 is larger than that shown in Figures 4 and 5. A trim 124 is placed in this gap G to cover the gap. The trim 124 is, for example, an extruded resin profile. The trim 124 may have substantially the same structure as the trim 102 shown in Figure 7, except for its projected and visible dimensions. The trim 124 has fins 124a, 124b protruding from the left and right ends of the exterior-facing surface of the exterior frame 124, which are fixed to the mullion base 90b using screws 92. Here, because the existing vertical frames 24c, 25c of the renovated fitting 10A do not have angle portions 24d2, 25c3 on the interior-facing surface, the fins 124a, 124b are directly fixed to the mullion base 90b.

[0092] The trim material 124 can completely close the gap G by sealing the gap between the tip of the protruding piece 120b and one of the visible surfaces with a sealing material 122 and the gap between the tip of the protruding piece 121b and the other visible surface with a sealing material 123. The renovated fitting 10A may use a trim material 98, which is a decorative material, shown in Figure 6, instead of the trim material 124.

[0093] In this way, in the renovated fitting 10A of this embodiment, the new vertical members 37, 65 are attached via water-stopping materials 118, 119 to the facing surfaces 24d1, 25c2 of the existing vertical frames 24d, 25c, which maintain a waterproof state relative to the existing mullion 22. This ensures that the renovated fitting 10A is also waterproof between the new vertical members 37, 65 and the existing vertical frames 24d, 25c, even if the facing dimensions of the existing mullion 22 vary depending on the construction site. As a result, the renovated fitting 10A can ensure waterproofing of the exterior portion of the existing mullion 22 and its surrounding area. In addition, in the renovated fitting 10A, the water-stopping materials 118, 119 are configured to abut against the visible surfaces 24d1, 25c2 of the existing vertical frames 24d, 25c, making it easy to form vertical and horizontal water-stopping lines between the existing upper frames 24a, 25a and the upper frames 26a, 27a.

[0094] Furthermore, the renovated fitting 10A of this embodiment is also configured to hold the water-stopping materials 118, 119 to the existing vertical frames 24d, 25c via attachment materials 104, 114. Therefore, the connection positions of the vertical frames 24d, 25c of the renovated fitting 10A in the prospective direction relative to the attachment materials 104, 114 can also be easily adjusted during construction, improving construction efficiency.

[0095] As a gap-concealing member for concealing the gap G in the renovated fitting 10A, a configuration may be adopted in which a trim 126 shown in FIG. 10 is provided instead of the trim 124. The trim 126 is the same as or similar in material and shape to the trim 124, but has a different connection structure to the existing window frame 14. That is, the existing window frame 14 in the configuration example shown in FIG. 11 is configured such that the interior portion 22b of the existing mullion 22 and the mullion base 90a are omitted, and the mullion base 90b is directly connected to the mullion body 22a of the existing mullion 22 with screws 23. The trim 126 is fixed to the mullion base 90b with screws 92. Note that the existing mullion 22 is not shown in FIG. 10, and the same is true for FIGS. 11 and 12.

[0096] As a gap-concealing member for concealing the gap G in the renovated fitting 10A, a configuration may be adopted in which a trim member 128 shown in FIG. 11 is provided instead of the trim member 124. The trim member 128 is made of the same or similar material as the trim member 124, but has a larger visible dimension than the trim member 124. That is, the existing window frame 14 shown in FIG. 9 has a mullion base 90b with a visible dimension of 40 mm, whereas the existing window frame 14 shown in FIG. 11 has a visible dimension of 70 mm. For this reason, the trim member 128 has a larger visible dimension than the trim member 124.

[0097] As a gap-concealing member for hiding the gap G in the renovated fitting 10A, a configuration may be adopted in which a trimming member 130 shown in FIG. 12 is provided instead of the trimming member 124. The material and shape of the trimming member 130 are the same as or similar to the trimming member 124, but the connection structure to the existing window frame 14 is different. That is, the existing window frame 14 in the configuration example shown in FIG. 12 has angle portions 24d2, 25c3 on the interior side of the existing vertical frames 24d, 25c, similar to the configuration example shown in FIG. 4. The trimming member 130 is directly fixed to these angle portions 24d2, 25c3 with screws 92.

[0098] As described above, the projection and sight dimensions of the existing mullion 22 usually vary depending on the construction site. Figure 9 illustrates a configuration in which the projection dimension of the existing mullion 22 is 70 mm, and the sight dimension of the existing mullion 22, Figure 9, illustrates a configuration in which the sight dimension of the mullion base 90b is 40 mm. Figure 10 illustrates a configuration in which the projection dimension of the existing mullion 22 is 60 mm, and the sight dimension of the existing mullion 22 is 40 mm. Figure 11 illustrates a configuration in which the projection dimension of the existing mullion 22 is 60 mm, and the sight dimension of the existing mullion 22 is 70 mm. Figure 12 illustrates a configuration in which the projection dimension of the existing mullion 22 is 70 mm, and the sight dimension of the existing mullion 22, Figure 12, illustrates a configuration in which the distance between the angle sections 24d2 and 25c3 is 50 mm. On the other hand, Figures 4 to 7 illustrate a configuration in which the projected dimension of the existing post 22 is 70 mm and the apparent dimension of the existing post 22 is 40 mm, but it goes without saying that the renovated fitting 10 of the first embodiment described above can also flexibly accommodate existing post 22 of various dimensions, just like the renovated fitting 10A of the second embodiment.

[0099] Next, one procedure for constructing the fitting 10A for renovation will be described with reference to the flowchart shown in FIG.

[0100] Here, we will explain the procedure for installing vertical frames 26d and 27c to the existing post 22 and existing vertical frames 24d and 25c shown in Figures 9 to 12, and will omit explanations of the upper frames 26a and 27a, the lower frames 26b and 27b, and the vertical frames 26c and 27d.

[0101] Step S11 in Figure 13 is the same as or similar to step S1 in Figure 8, so a detailed description will be omitted. In step S12, attachment materials 104, 114 are connected to the existing frames 24, 25 that make up the existing window frame 14. As with step S2 in Figure 8, in this step, the attachment materials 104, 114 are not frame-shaped members, so they can be easily connected individually to the existing frames 24, 25 from the inside of the room at the construction site, resulting in high construction efficiency (see Figure 9). Note that step S12 of this construction method also includes a step of connecting any of the trim materials 124, 126, 128 to the existing mullions 22.

[0102] In step S13, the new frames 26, 27 that make up the new window frame 16 are connected to the attachment materials 104, 114. At this time, as shown in Figure 9, the water-stopping materials 118, 119 attached to the frame-outside visible surfaces 26d2, 27d2 of the vertical frames 26d, 27d abut against the outdoor-side visible surfaces 24d1, 25c2 of the attachment materials 104, 114. This seals off water between the vertical frames 26d, 27d and the existing vertical frames 24d, 25c.

[0103] Finally, in step S14, the left and right frames 120, 121 are attached to the vertical frames 26d, 27c. At this time, the gap G is hidden by one of the gap-hiding members, the trims 124, 126, or 128. This conceals the interior facing surface 22d of the existing mullion 22 with the frames 120, 121, etc., completing the construction of the renovated window fixture 10A, which has high appearance quality and thermal insulation. In this way, the renovated window fixtures 10, 10A according to the above-described embodiments allow the installation of the new frames 26, 27 without cutting or removing the existing mullion 22, thereby improving construction efficiency and reducing construction costs. Furthermore, the renovated window fixtures 10, 10A ensure waterproofing between the existing window frame 14 and the new window frame 16.

[0104] The first aspect of the present invention relates to a remodeling fixture in which a new window frame is attached to the inside of an existing window frame, the existing window frame having an existing mullion, a first existing vertical frame attached to one side of the existing mullion, and a second existing vertical frame attached to the other side of the existing mullion, the new window frame having a first vertical frame supported by the first existing vertical frame, a second vertical frame supported by the second existing vertical frame, a first frame supported on the interior side of the first vertical frame, and a second frame supported on the interior side of the second vertical frame, the first frame and the second frame each having protruding pieces that protrude opposite each other on the interior side of the existing mullion beyond the interior-facing surface of the existing mullion. This configuration allows the new window frame to be attached without cutting or removing the existing mullion and while leaving the first and second existing vertical frames in place, thereby improving construction efficiency and reducing construction costs. Furthermore, the interior sides of the existing mullions and vertical frames of the renovated fixtures are hidden by the left and right frames, improving the appearance quality and insulation.

[0105] A gap may be formed between the protruding pieces of the first frame and the second frame, and a gap-hiding member may be provided to hide the gap. In other words, it is difficult to align the protruding pieces of the left and right frames without a gap. Therefore, by hiding the gap with a gap-hiding member, the appearance quality and thermal insulation of the remodeled fitting can be further improved.

[0106] Each of the protruding pieces may be made of resin and have a break-off groove that allows the length of the protruding piece to be adjusted, so that the length of the protruding piece of each frame can be easily adjusted at the construction site according to the dimensions of the existing mullion.

[0107] The protruding pieces may be arranged close to each other and facing each other, and the gap-covering member may have a batten fixed to the interior surface of each protruding piece so as to straddle the gap. In this way, the gap between the protruding pieces can be easily covered.

[0108] The protruding pieces may be arranged close to each other and facing each other, and the gap-covering member may have a sheet-like member attached to the interior surface of each protruding piece so as to straddle the gap. In this way, the gap between the protruding pieces can be covered without any steps, further improving the appearance quality.

[0109] Furthermore, a base material may be provided that is supported against the interior facing surface of the existing mullion and supports the exterior surfaces of the protruding pieces, thereby providing stable support between the protruding pieces.

[0110] The gap-concealing member may be supported against the visible surface of the existing mullion on the interior side and have a trim material placed in the gap, and each of the protruding pieces may be positioned opposite the visible surface of the trim material, with the gap between the protruding pieces and the visible surface sealed with a sealant. This makes it easy to close the gap between the protruding pieces and also makes sealing with the sealant easier.

[0111] The gap-concealing member may be supported against the visible surface of the existing mullion on the interior side and have a trim material placed in the gap, and each of the protruding pieces may be positioned opposite the visible surface of the trim material, with the gap between the protruding pieces and the visible surface being sealed with a tension material. In this way, the gap between each of the protruding pieces can be easily sealed and the tension material and the visible surface of the trim material can be reliably pressed against each other.

[0112] The trim may have a mullion base connected to the interior facing surface of the existing mullion and a mullion cover attached to the interior side of the base material, thereby enabling the trim to be securely fixed to the existing mullion.

[0113] The parting material may have a decorative material disposed in the gap, thereby further improving the appearance quality.

[0114] A second aspect of the present invention relates to a method for installing a new window frame on an existing window frame, and includes the steps of supporting a first vertical frame on a first existing vertical frame provided on one side of an existing mullion, supporting a second vertical frame on a second existing vertical frame provided on the other side of the existing mullion, connecting a first frame to the interior side of the first vertical frame and positioning a protruding piece provided on the first frame on an interior side of the existing mullion, and connecting a second frame to the interior side of the second vertical frame and positioning a protruding piece provided on the second frame on an interior side of the existing mullion and positioning the protruding pieces of the first and second frames so that they face each other. This method allows the new window frame to be installed without cutting or removing the existing mullion and while leaving the first and second existing vertical frames in place, thereby improving installation efficiency and reducing construction costs. Furthermore, the interior sides of the existing mullions and vertical frames of the renovated fixtures are hidden by the left and right frames, improving the appearance quality and insulation.

[0115] The step of arranging the protruding pieces so as to face each other may include forming gaps between the protruding pieces, and may further include a step of concealing the gaps with a gap-concealing member, which makes it possible to easily close the gaps between the protruding pieces of the left and right frames, thereby further improving the appearance quality and heat insulation.

[0116] It should be noted that the present invention is not limited to the above-described embodiment, and can be freely modified without departing from the spirit of the present invention. [Explanation of symbols]

[0117] 10,10A Renovated fittings, 12 Frame, 14 Existing window frame, 16 New window frame, 18-20 New shoji screen, 22 Existing mullion, 24 First existing frame, 24a, 25a Existing upper frame, 24c, 24d, 25c, 25d Existing vertical frame, 25 Second existing frame, 26 First new frame, 26a, 27a Upper frame, 26b1, 27b1, 58b1, 63, 104, 114 Attachment material, 26c, 26d, 27c, 27d Vertical frame, 27 Second new frame, 28, 36, 56, 64 Cover material, 37 New vertical member, 48, 49, 52, 53, 75, 76, 78, 79, 82, 118, 119 Water-stopping materials, 50, 77, 122, 123 Tight materials, 65 New vertical members, 84, 85, 120, 121 Frames, 94 Batten, 96 Sheet members, 98, 102, 124, 126, 128, 130 Trim materials

Claims

1. This is a renovation fixture in which a new window frame is attached inside the existing window frame, The existing window frame is: With the existing post, A first existing vertical frame provided on one side of the existing post; A second existing vertical frame provided on the other side of the existing post; and The new window frame is: A first vertical frame supported by the first existing vertical frame; A second vertical frame supported by the second existing vertical frame; A first frame supported on the indoor side of the first vertical frame; A second frame supported on the indoor side of the second vertical frame; and The first frame and the second frame each have a protruding piece that protrudes so as to face each other on the interior side of the existing mullion beyond the interior facing surface. Renovated fittings characterized by:

2. The renovation fitting according to claim 1, A gap is formed between each of the protruding pieces of the first frame and the second frame, Further, a gap hiding member for hiding the gap is provided. Renovated fittings characterized by:

3. The renovation fitting according to claim 2, Each of the protruding pieces is made of resin and has a break groove that allows the protruding length to be adjusted. Renovated fittings characterized by:

4. The renovation fitting according to claim 2 or 3, The protruding pieces are closely opposed to each other, The gap-hiding member has a batten fixed to the interior surface of each protruding piece in a state spanning the gap. Renovated fittings characterized by:

5. The renovation fitting according to claim 2 or 3, The protruding pieces are closely opposed to each other, The gap-hiding member has a sheet-like member attached to the interior surface of each protruding piece in a state spanning the gap. Renovated fittings characterized by:

6. The renovation fitting according to claim 4 or 5, Furthermore, a base material is provided which is supported against the interior surface of the existing mullion and supports the exterior surface of each of the protruding pieces. Renovated fittings characterized by:

7. The renovation fitting according to claim 2 or 3, The gap hiding member is supported against the interior facing surface of the existing mullion and has a trim material arranged in the gap, The protruding pieces are arranged to face the projection surfaces of the parting material, and the gap between the projection surfaces and the projection surfaces is sealed with a sealing material. Renovated fittings characterized by:

8. The renovation fitting according to claim 2, The gap hiding member is supported against the interior facing surface of the existing mullion and has a trim material arranged in the gap, Each of the protruding pieces is disposed opposite to the projection surface of the trim material, and the space between the projection surface and the protruding piece is sealed with a tension material. Renovated fittings characterized by:

9. The renovation fitting according to claim 7 or 8, The trim material is A mullion base connected to the interior facing surface of the existing mullion; a mullion cover attached to the indoor side of the mullion base; have Renovated fittings characterized by:

10. The renovation fitting according to claim 7, The trim material has a decorative material disposed in the gap. Renovated fittings characterized by:

11. A construction method for renovating fixtures by attaching a new window frame to an existing window frame, a step of supporting the first vertical frame on a first existing vertical frame provided on one side of the existing mullion; a step of supporting a second vertical frame on a second existing vertical frame provided on the other side of the existing mullion; a step of connecting a first frame to the indoor side of the first vertical frame and arranging a protruding piece provided on the first frame on the indoor side of the indoor-side visible surface of the existing mullion; a step of connecting a second frame to the indoor side of the second vertical frame, arranging a protruding piece provided on the second frame on the indoor side of the indoor-side visible surface of the existing mullion, and arranging the protruding pieces of the first frame and the second frame so as to face each other; A method for constructing renovation fittings, comprising:

12. The construction method for the remodeling fixture according to claim 11, The step of arranging the protruding pieces so as to face each other includes forming a gap between the protruding pieces, Further, the method includes a step of hiding the gap with a gap hiding member. A construction method for renovation fittings characterized by the above.

Images