Building materials installation method

Abstract

To provide a renovation fitting capable of attaching a new frame even when the frame of the building is RC (reinforced concrete) construction or SC (steel frame) construction.SOLUTION: A renovation fitting 1 includes: a new frame 2 formed of four sides, which is to be attached to an existing frame 6 placed in an opening of a building 100; an attachment frame 3 formed of four sides on a perimeter of the new frame 2, which is placed at an inner circumference side of the existing frame 6; and a connecting member 8 that is placed between the existing frame 6 and the attachment frame 3, and which is fixed at the inner circumference side of the existing frame 6 to which the attachment frame 3 is attached to the perimeter of new frame 2.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to retrofit fittings. [Background technology]

[0002] Conventionally, a covering method has been adopted for renovating openings in buildings through renovations, etc., in which new fixtures are installed in the openings. In the renovated fixtures renovated using this covering method, a new frame is attached to the inner periphery of the existing frame attached to the opening of the building (see, for example, Patent Document 1).

[0003] The remodeled fixture described in Patent Document 1 has a connecting member between the existing frame and the new frame. The remodeled fixture described in Patent Document 1 is installed in the skeleton of a wooden building, and when a new frame is installed, both the new frame and the connecting member installed between the existing frame and the new frame are fixed to the skeleton of the wooden building with screws. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-64432 Summary of the Invention [Problem to be solved by the invention]

[0005] The remodeling fixture described in Patent Document 1 is fitted into the wooden frame of a building, and when a new frame is installed, the new frame is fixed to the wooden frame of the building with screws. However, when the building frame is made of reinforced concrete (RC) or steel frame (SC), neither the new frame nor the connecting member installed between the existing frame and the new frame can be fixed to the building frame with screws. Therefore, there is a demand for a system that allows the installation of a new frame even when the building frame is made of reinforced concrete (RC) or steel frame (SC).

[0006] The present disclosure aims to provide a renovation fixture that allows for the installation of a new frame even if the building's framework is made of reinforced concrete (RC) or steel frame (SC). [Means for solving the problem]

[0007] The present disclosure relates to a renovation fitting that is attached to an existing frame installed in an opening in a building, and that includes a new frame that is assembled around all four sides, an attachment frame that is assembled around all four sides and attached to the outer periphery of the new frame and is positioned on the inner periphery of the existing frame, and a connecting member that is positioned between the existing frame and the attachment frame and is fixed to the inner periphery of the existing frame, to which the attachment frame attached to the outer periphery of the new frame is attached. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of the remodeled fixture according to the embodiment, seen from the outside of the room. [Figure 2] FIG. 2 is a vertical cross-sectional view of the renovated fixture shown in FIG. 1. [Figure 3] FIG. 2 is a cross-sectional view of the renovated fixture shown in FIG. 1. [Figure 4] 10 is a perspective view showing a state in which a new frame with an attachment frame attached is attached to an existing frame with a connecting member attached. FIG. [Figure 5A] This is a diagram showing a method of installing renovated building materials, and shows the state in which an upper frame connecting member is fixed to the existing upper frame and a lower frame connecting member is fixed to the existing lower frame. [Figure 5B] This is a diagram showing a method of installing renovated fittings, showing the state in which a vertical frame connecting member is fixed to an existing vertical frame. [Figure 6A] This is a diagram showing a method of installing a renovated fixture, and is a vertical cross-sectional view showing the state in which a new frame with an attachment frame attached is inserted into an opening on the inside of the existing frame while being tilted. [Figure 6B] This is a diagram showing a method of installing renovated building materials, and is a cross-sectional view showing the state in which a new frame with an attachment frame attached is tilted and inserted through an opening on the inside of the existing frame to bring it to the outside of the room. [Figure 7A] This is a diagram showing a method of installing renovated building materials, and is a vertical cross-sectional view showing the state in which a new frame with an attachment frame attached that has been extended to the outside of the existing frame is moved toward the existing frame. [Figure 7B] This is a diagram showing the construction method for renovating building materials, and is a cross-sectional view showing the state in which a new frame with an attachment frame attached that has been extended to the outside of the existing frame is moved toward the existing frame. [Figure 8A] This is a diagram showing a method of installing renovated building materials, and shows the state in which the upper attachment frame is connected to the upper frame connection part and the lower attachment frame is connected to the lower frame connection part. [Figure 8B] This is a diagram showing a method of installing a renovated fixture, and shows the state in which the attachment vertical frame is connected to the vertical frame connection part. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. The remodeling fitting 1 according to this embodiment is a remodeling fitting 1 for renovation, which is formed by newly installing new members while leaving the existing frame 6 fixed to the building 100 attached to the building 100.

[0010] In this specification, "prospect direction" refers to the face direction of the surface material of the shoji screen 10 in the remodeled fitting 1 placed in an opening formed in the wall of the building 100, and "prospect direction" refers to the thickness direction of the surface material (i.e., the depth direction). The "prospect direction" also refers to the indoor / outdoor direction. In the drawings, the outdoor side of the remodeled fitting 1 is the outdoor side X1, and the indoor side of the remodeled fitting 1 is the indoor side X2. The horizontal direction of the remodeled fitting 1 is referred to as the "left-right direction."

[0011] As shown in Figures 1 to 3, the renovated fitting 1 according to this embodiment is a renovated sash of a double sliding window type that is fitted into an opening in a building 100. The renovated fitting 1 is attached to an existing frame 6 that is provided in the opening of the building 100. In this embodiment, the existing frame 6 on which the renovated fitting 1 is to be provided is fitted into the framework of the building 100, which is made of reinforced concrete (RC) or steel frame (SC).

[0012] As shown in Figures 1 to 4, the renovated fitting 1 comprises a new frame 2, an attachment frame 3 that is attached to the inside of the existing frame 6 while being attached to the outer periphery of the new frame 2, a connecting member 8, indoor decorative members 41, 42, 43, outdoor decorative covers 51, 52, 53, and shoji screens 10, 10 that can be slidably placed within the new frame 2.

[0013] The existing frame 6 is installed at an opening in the building 100. The new frame 2 is attached to the inside of the existing frame 6 via a connecting member 8, with the attachment frame 3 attached to the outer periphery. The attachment frame 3 is attached to the connecting member 8 fixed to the inner periphery of the existing frame 6.

[0014] First, we will explain the configuration of the existing frame 6. As shown in Figures 2 and 3, the existing frame 6 is provided inside the opening of the building 100 and is formed in the shape of a rectangular frame. The existing frame 6 includes an existing upper frame 61, an existing lower frame 62, and existing vertical frames 63 on the left and right.

[0015] As shown in FIG. 2, the existing upper frame 61 is attached to the upper side of the opening of the building 100, and has guide rails 611, 612 (existing upper frame guide rails) for the existing shoji screen that stand upright downward.

[0016] The existing lower frame 62 is attached to the lower side of the opening of the building 100, and has guide rails 621, 622 for the existing shoji screen that are erected facing upward.

[0017] The existing vertical frames 63 are attached to the left and right vertical sides of the outdoor side X1 of the opening of the building 100, as shown in FIG.

[0018] The connecting member 8 is disposed between the existing frame 6 and the attachment frame 3, and connects the existing frame 6 and the attachment frame 3. The connecting member 8 is fixed to the inner periphery of the existing frame 6. The attachment frame 3 attached to the outer periphery of the new frame 2 is attached to the connecting member 8. As shown in Figure 4, the connecting member 8 includes an upper frame connecting member 81, a lower frame connecting member 82, and a pair of vertical frame connecting members 83.

[0019] 2 and 4, the upper frame connecting member 81 connects the existing upper frame 61 and the attachment upper frame 31. As shown in Fig. 2, the upper frame connecting member 81 is connected to the inner periphery of the existing upper frame 61. The upper frame connecting member 81 has an indoor / outdoor direction extending plate 811 that extends in the indoor / outdoor direction, and a protruding piece 812 that is formed at the outdoor side X1 end of the indoor / outdoor direction extending plate 811 and protrudes upward.

[0020] The protruding piece 812 is fixed to the guide rail 611 of the existing upper frame 61 with a screw 812a. The middle part of the indoor / outdoor direction extension plate 811 in the indoor / outdoor direction is fixed to the guide rails 611, 612 of the existing upper frame 61 via an L-shaped mounting piece 815 with screws 811a, 815a.

[0021] An end 813 on the indoor side X2 of the indoor / outdoor direction extending plate 811 is fixed to an indoor side horizontal extending plate 314 (described later) of the attachment upper frame 31 with a screw 314a.

[0022] 2 and 4, the lower frame connecting member 82 connects the existing lower frame 62 and the attachment lower frame 32. As shown in Fig. 2, the lower frame connecting member 82 is connected to the inner periphery of the existing lower frame 62. The lower frame connecting member 82 has an indoor-outdoor direction extending plate 821 extending in the indoor-outdoor direction, an outdoor step L-shaped plate 822 connected to the outdoor side X1 of the indoor-outdoor direction extending plate 821, and a lower support portion 823 formed at the lower end of the outdoor side X1 of the outdoor L-shaped plate 822.

[0023] An intermediate portion of the indoor / outdoor direction extension plate 821 in the indoor / outdoor direction is fixed to the guide rail 622 of the existing lower frame 62 via an L-shaped mounting piece 825 by screws 821a and 825a.

[0024] The outdoor L-shaped plate 822 is formed in an L-shaped step shape that is open to the outdoor side X1 and the upper side, and is formed at a position one step lower than the indoor / outdoor extending plate 821.

[0025] The lower support part 823 has a U-shaped open frame 823a that opens downward, and a support member 823b that is attached to the upper part of the inside of the open frame 823a. The upper end of the guide rail 621 of the existing lower frame 62 abuts against the lower end of the support member 823b.

[0026] An end 824 on the indoor side X2 of the indoor / outdoor direction extending plate 821 is fixed to the indoor side horizontal extending plate 324 of the attachment lower frame 32 with a screw 324a.

[0027] 3 and 4, the vertical frame connection member 83 connects the existing vertical frame 63 and the attachment vertical frame 33. As shown in Fig. 3, the vertical frame connection member 83 is connected to the inner periphery of the existing vertical frame 63. The vertical frame connection member 83 has an indoor-outdoor direction extending plate 831 extending in the indoor-outdoor direction, an end protruding piece 832 protruding outward in the left-right direction from the end of the indoor-outdoor direction extending plate 831 on the outdoor side X1, and a connection portion side restricting piece 833 protruding outward in the left-right direction parallel to the end protruding piece 832 on the indoor-indoor side X2 further than the end protruding piece 832 of the indoor-outdoor direction extending plate 831.

[0028] The indoor-outdoor direction extending plate 831 has a stepped portion 831a formed in a stepped shape midway in the indoor-outdoor direction and a convex portion 831b that protrudes inward in the left-right direction at the end side on the outdoor side X1. The indoor-outdoor direction extending plate 831 is fixed to the existing vertical frame 63 midway in the indoor-outdoor direction with screws 831c.

[0029] When fixing the indoor / outdoor direction extension plate 831 of the vertical frame connection member 83 to the existing vertical frame 63 with the screw 831c, the vertical frame connection member 83 is placed on the inner periphery of the existing vertical frame 63, and a cylindrical spacer 835 is placed between the existing vertical frame 63 and the vertical frame connection member 83. Then, the screw 831c is passed through the vertical frame connection member 83, the cylindrical spacer 835, and the existing vertical frame 63 in this order from the inside in the left-right direction of the vertical frame connection member 83, thereby fixing the vertical frame connection member 83, the cylindrical spacer 835, and the existing vertical frame 63 with the screw 831c.

[0030] An end 834 on the indoor side X2 of the indoor / outdoor direction extending plate 831 is fixed to the indoor side indoor direction extending portion 333 of the attachment vertical frame 33 with a screw 333a.

[0031] When the vertical frame connection member 83 is combined with the existing vertical frame 63, the connection side regulating piece 833 is positioned on the indoor side X2 of the existing side regulating piece 631 that protrudes inward in the left-right direction from the existing vertical frame 63, and movement toward the outdoor side X1 is restricted.

[0032] As shown in Figure 4, the new frame 2 is attached to a connecting member 8 fixed to the existing frame 6, with the attachment frame 3 attached to the outer periphery. The new frame 2 is made up of four parts and is placed on the inner periphery of the existing frame 6. The new frame 2 is attached to the inner periphery of the connecting member 8 attached to the inner periphery of the existing frame 6 via the attachment frame 3.

[0033] The new frame 2 includes a new upper frame 21, a new lower frame 22, and left and right new vertical frames 23. When the new frame 2 is assembled around its four sides, it is fixed with screws at the joints of the new upper frame 21, the new lower frame 22, and the left and right new vertical frames 23. The attachment frame 3 includes an upper attachment frame 31, a lower attachment frame 32, and left and right vertical attachment frames 33.

[0034] With the attachment frame 3 attached to the outer periphery, the new upper frame 21 is attached to the inner periphery of the attachment upper frame 31 as shown in Figure 2. The new upper frame 21 has guide rails 211, 212 on the upper side of the shoji screens 10, 10 that are erected downward.

[0035] With the attachment frame 3 attached to the outer periphery, the new sill 22 is attached to the inner periphery of the attachment sill 32 as shown in Figure 2. The new sill 22 has guide rails 221, 222 on the lower side of the shoji screens 10, 10 that are erected upward.

[0036] With the attachment frame 3 attached to the outer periphery, the new vertical frame 23 is attached to the inner periphery of the attachment vertical frame 33 as shown in FIG.

[0037] The new upper frame 21, the new lower frame 22, and the new vertical frame 23 are formed of, for example, a metal material or a resin material. As shown in Figures 2 and 3, resin angle members 213, 223, and 233 are provided on the indoor side X2 of the new upper frame 21, the new lower frame 22, and the new vertical frame 23, respectively.

[0038] The above-mentioned new frame 2 (new upper frame 21, new lower frame 22, and left and right new vertical frames 23) is attached to a connecting member 8 fixed to the inner periphery of the existing frame 6 (existing upper frame 61, existing lower frame 62, and left and right existing vertical frames 63), with the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, and left and right vertical attachment frames 33) arranged around the outer periphery.

[0039] As shown in Figure 4, the attachment frame 3 is attached to the outer periphery of the new frame 2 in a four-way configuration, and is then attached to a connecting member 8 fixed to the inner periphery of the existing frame 6. The attachment frame 3 is attached to the outer periphery of the new frame 2 in a four-way configuration.

[0040] 4, the attachment frame 3 is configured by an upper attachment frame 31, a lower attachment frame 32, and a pair of vertical attachment frames 33 arranged on all four sides to form a rectangle. The upper attachment frame 31, the lower attachment frame 32, and the left and right vertical attachment frames 33 are each made of, for example, aluminum material.

[0041] The upper attachment frame 31 is disposed at the top of the attachment frame 3 and extends in the left-right direction (horizontal direction). The lower attachment frame 32 is disposed at the bottom of the attachment frame 3 and extends in the left-right direction (horizontal direction). The vertical attachment frame 33 is disposed at the end of the attachment frame 3 in the left-right direction and extends in the up-down direction.

[0042] As shown in Figure 2, the attachment upper frame 31 has an attachment upper frame hollow portion 311, a horizontal gutter structure portion 312, an outdoor vertical extension plate portion 313 (view direction extension plate portion), and an indoor horizontal extension plate 314 (extension plate).

[0043] The attachment upper frame hollow portion 311 and the horizontal gutter structure portion 312 are arranged side by side in the indoor / outdoor direction. The attachment upper frame hollow portion 311 is arranged on the indoor side X2, and the horizontal gutter structure portion 312 is arranged on the outdoor side X1.

[0044] The attachment upper frame hollow portion 311 is formed in a hollow, elongated rectangular shape extending in the indoor-outdoor direction.

[0045] The gutter structure 312 is formed on the outdoor side X1 of the attachment upper frame hollow portion 311 at the top of the attachment upper frame 31. The gutter structure 312 is formed in a concave shape that is open upward and concave downward.

[0046] Water that has entered the gutter structure 312 flows to both longitudinal ends of the upper attachment frame 31 and flows into the interior of the vertical attachment frame 33 via the longitudinal ends that are open to the outside in the left and right directions. Water that has flowed into the interior of the vertical attachment frame 33 is received by the existing lower frame 62 at the lower side of the vertical attachment frame 33 and is then discharged to the outside. Thus, by providing the gutter structure 312, it is possible to improve drainage performance and water-stopping performance.

[0047] The outdoor vertically extending plate portion 313 is formed in the shape of a plate extending upward from the outdoor side X1 end of the horizontal gutter structure portion 312. An outdoor decorative cover 51 is attached to the outdoor side X1 of the outdoor vertically extending plate portion 313. The outdoor decorative cover 51 attached to the outdoor side X1 of the outdoor vertically extending plate portion 313 is arranged on the outdoor side X1 of the outdoor vertically extending plate portion 313 so as to cover the outdoor vertically extending plate portion 313.

[0048] The indoor-side horizontal extension plate 314 extends horizontally on the indoor-side X2 side from the indoor-side X2 end of the upper end of the attachment upper frame hollow portion 311. The indoor-side horizontal extension plate 314 is fixed to the indoor-side X2 end 813 of the indoor-outdoor extension plate 811 of the upper frame connecting member 81 with screws 314a.

[0049] As shown in FIG. 2, the attachment lower frame 32 has an indoor / outdoor extending portion 321, an attachment lower frame hollow portion 322 (hollow portion), an outdoor vertical extending plate portion 323, and an indoor horizontal extending plate 324 (extending plate).

[0050] The indoor / outdoor extending portion 321 and the attachment lower frame hollow portion 322 are arranged side by side in the indoor / outdoor direction. The indoor / outdoor extending portion 321 is arranged on the outdoor side X1, and the attachment lower frame hollow portion 322 is arranged on the indoor side X2. The indoor / outdoor extending portion 321 is formed at a position lower than the upper surface of the attachment lower frame hollow portion 322.

[0051] The attachment lower frame hollow portion 322 is formed in a hollow, elongated rectangular shape extending in the indoor / outdoor direction.

[0052] The outdoor vertical extending plate portion 323 is formed in a plate shape extending downward from the outdoor side X1 end of the indoor / outdoor extending portion 321. An outdoor decorative cover 52 is attached to the outdoor side X1 of the outdoor vertical extending plate portion 323. The outdoor decorative cover 52 attached to the outdoor side X1 of the outdoor vertical extending plate portion 323 is arranged on the outdoor side X1 of the outdoor vertical extending plate portion 323 so as to cover the outdoor vertical extending plate portion 323.

[0053] The indoor-side horizontal extension plate 324 extends horizontally on the indoor-side X2 side from the indoor-side X2 end of the upper end of the attachment lower frame hollow portion 322. The indoor-side horizontal extension plate 324 is fixed to the indoor-side X2 end 824 of the indoor-outdoor direction extension plate 821 of the lower frame connecting member 82 with screws 324a.

[0054] As shown in Figure 3, the vertical attachment frame 33 has a vertical attachment frame hollow portion 331 (hollow portion), an outdoor side left / right extending plate portion 332 (view direction extending plate portion), and an indoor side indoor direction extending portion 333 (extending plate).

[0055] The attachment vertical frame hollow portion 331 is formed in a hollow shape of a long and narrow rectangle extending in the indoor and outdoor directions.

[0056] The indoor-side indoor-direction extending portion 333 extends from the indoor-side X2 end portion, which is the outer end in the left-right direction of the attachment vertical frame hollow portion 331, to the indoor-side X2 end portion. The indoor-side indoor-direction extending portion 333 is fixed to the indoor-side X2 end portion 834 of the indoor-outdoor direction extending plate 831 of the vertical frame connecting member 83 with screws 333a.

[0057] The outdoor left-right extending plate portion 332 is formed in a plate shape extending outward in the left-right direction from the outdoor side X1 end of the attachment vertical frame hollow portion 331. The outdoor left-right extending plate portion 332 is arranged on the outdoor side X1 and extends in the left-right direction (view direction).

[0058] An outdoor decorative cover 53 is attached to the outdoor side X1 surface of the attachment vertical frame hollow portion 331. The outdoor decorative cover 53 attached to the outdoor side X1 surface of the attachment vertical frame hollow portion 331 is arranged on the outdoor side X1 of the outdoor left-right direction extending plate portion 332 so as to cover the outdoor left-right direction extending plate portion 332.

[0059] As shown in Figs. 2 and 3, the indoor side decorative members 41, 42, 43 are attached to the resin angle members 213, 223, 233 of the new frame 2, respectively, on the indoor side X2.

[0060] As shown in Figs. 2 and 3, the exterior decorative covers 51, 52, 53 are attached to the surfaces of the exterior side X1 of the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33, respectively.

[0061] Furthermore, the renovated fitting 1 has an airtight structure 85, as shown in FIGS. 2 and 3 . The airtight structure 70 is configured to connect the existing frame 6 side and the new frame 2 side with airtight tape, connecting the attachment frame 3 attached to the existing frame 6 and the new frame 2. In this embodiment, the airtight structure 85 is arranged to connect the existing frame 6 and the attachment frame 3 attached to the new frame 2 in order to improve the airtight performance between the existing frame 6 and the new frame 2. The airtight tape constituting the airtight structure 85 may be configured as a single sheet, or may be configured to be connected by multiple separate sheets. Note that, although airtight tape is used in the airtight structure 85 of this embodiment, this is not limiting. For example, the airtight structure 85 may use a sheet material (airtight adhesive sheet) with adhesive provided on the attachment portion.

[0062] In this embodiment, the existing frame 6 on which the renovated fitting 1 is installed is fitted into the framework of the building 100, which is made of reinforced concrete (RC) or steel (SC). Therefore, when the attachment frame 3, which is attached to the outer periphery of the new frame 2 on all four sides, is attached to the inner periphery of the existing frame 6, it cannot be fixed with screws.

[0063] In contrast to this, in the present disclosure, a connecting member 8 is fixed to the existing frame 6 itself on the inner periphery of the existing frame 6, and an attachment frame 3 that can be attached around its entire periphery to the outer periphery of the new frame 2 is attached to the inner periphery side of the connecting member 8 fixed to the existing frame 6. In this way, by fixing the connecting member 8 to the inner periphery side of the existing frame 6 without using screws to fasten it to the skeleton of the building 100, the attachment frame 3 that can be attached around its entire periphery to the outer periphery of the new frame 2 can be attached to the connecting member 8 fixed to the inner periphery side of the existing frame 6.

[0064] Next, we will explain the procedure for constructing the remodeled fitting 1. When constructing the remodeled fitting 1, the fitting is prepared in advance by assembling the attachment frame 3 on the outer periphery of the newly constructed frame 2 that has been assembled on all four sides.

[0065] When constructing the remodeled fitting 1, first, the connecting member 8 is fixed to the inner periphery of the existing frame 6. Specifically, as shown in FIG. 5A, the upper frame connecting member 81 is fixed to the inner periphery of the existing upper frame 61. More specifically, the upper frame connecting member 81 is fixed to the guide rails 611, 612 for the existing shoji screens of the existing upper frame 61 via mounting pieces 815. In addition, the lower frame connecting member 82 is fixed to the inner periphery of the existing lower frame 62 via mounting pieces 825. Furthermore, as shown in FIG. 5B, the vertical frame connecting member 83 is fixed to the inner periphery of the existing vertical frame 63.

[0066] 6A and 6B, with the attachment frame 3 assembled to the outer periphery of the new frame 2, the attachment frame 3 assembled to the outer periphery of the new frame 2 is inserted into the opening on the inside of the connecting member 8. Here, in the attachment frame 3, the outdoor vertical extension plate portion 313 of the upper attachment frame 31, the outdoor vertical extension plate portion 323 of the lower attachment frame 32, and the indoor indoor extension portion 333 of the vertical attachment frame 33 will come into contact with the existing frame 6, so the attachment frame 3 assembled to the outer periphery of the new frame 2 is inserted into the opening of the existing frame 6 while tilting it, and temporarily extended to the outdoor side X1.

[0067] Then, as shown in Figures 7A and 7B, the attachment frame 3 assembled to the outer periphery of the new frame 2 is changed from its tilted state to a state parallel to the existing frame 6, and is pulled toward the existing frame 6 from the outside X1 of the existing frame 6.

[0068] Next, as shown in Fig. 8A, the indoor-side horizontal extending plate 314 of the attachment upper frame 31 is fixed to the indoor-side X2 end 813 of the indoor-outdoor direction extending plate 811 with screws 314a. Also, the indoor-side horizontal extending plate 324 of the attachment lower frame 32 is fixed to the indoor-side X2 end 824 of the indoor-outdoor direction extending plate 821 with screws 324a. Also, as shown in Fig. 8B, the indoor-side indoor-direction extending portion 333 of the attachment vertical frame 33 is fixed to the indoor-side X2 end 834 of the indoor-outdoor direction extending plate 831 with screws 333a.

[0069] In the new upper frame 21, as shown in Fig. 8A, screws 21a are inserted from the inner periphery of the new upper frame 21, penetrating from the bottom to the top in the following order: new upper frame 21, attachment upper frame 31, upper frame connecting member 81, and existing upper frame 61, and then fastened with screws 21a. In the new vertical frame 23, as shown in Fig. 8B, screws 23a are inserted from the inner periphery of the new vertical frame 23, penetrating from the inside to the outside in the left-right direction in the following order: new vertical frame 23, attachment vertical frame 33, and vertical frame connecting member 83, and then fastened with screws 23a.

[0070] This allows the new frame 2 to be attached to the existing frame 6 without fixing the new frame 2 and the attachment frame 3 to the skeleton of the building 100. Therefore, even if the skeleton of the building 100 is made of RC (reinforced concrete) or SC (steel frame) construction, the attachment frame 3 assembled to the outer periphery of the new frame 2 can be attached to the existing frame 6.

[0071] 8A and 8B, on the outside side X1, the outside decorative covers 51, 52, and 53 are attached to the outside side X1 surfaces of the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33. On the inside side X2, the inside decorative members 41, 42, and 43 are attached to the resin angle members 213, 223, and 233 of the new frame 2, respectively.

[0072] According to this embodiment, the following effects are achieved: The remodeling fitting 1 of this embodiment is attached to an existing frame 6 provided at an opening in the building 100 and comprises a new frame 2 configured by assembling all four sides, an attachment frame 3 attached to the outer periphery of the new frame 2 by assembling all four sides and positioned on the inner periphery of the existing frame 6, and a connecting member 8 positioned between the existing frame 6 and the attachment frame 3 and fixed to the inner periphery of the existing frame 6, to which the attachment frame 3 attached to the outer periphery of the new frame 2 is attached.

[0073] This allows the new frame 2 to be attached to the existing frame 6 without fixing the new frame 2 and the attachment frame 3 to the skeleton of the building 100. Therefore, even if the skeleton of the building is made of reinforced concrete (RC) or steel (SC), the attachment frame 3 assembled to the outer periphery of the new frame 2 can be attached to the existing frame 6.

[0074] In this embodiment, the connecting members 8 include an upper frame connecting member 81 that connects the existing upper frame 61 and the upper attachment frame 31, a lower frame connecting member 82 that connects the existing lower frame 62 and the lower attachment frame 32, and a vertical frame connecting member 83 that connects the existing vertical frame 63 and the vertical attachment frame 33. This allows the four peripheries of the attachment frame 3 to be easily attached to the inner periphery of the existing frame 6 using the connecting members 8.

[0075] Furthermore, in this embodiment, the upper frame connection member 81 is fixed to the guide rails 611, 612 for the existing shoji screens, which are provided on the existing upper frame 61 and stand upright facing downward. This allows the upper frame connection member 81 to be fixed to the existing upper frame 61 with a simple configuration, simply by fixing the upper frame connection member 81 to the guide rails 611, 612 for the existing shoji screens.

[0076] Although a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the above-described embodiment and can be modified as appropriate.

[0077] For example, in the above embodiment, the remodeled fitting 1 has been described as being applied to a remodeled sliding window sash. However, this is not limited to this. The remodeled fitting may be applied to, for example, an open-close type remodeled fitting in which the door rotates around a rotation axis to open and close, or a vertical sliding type remodeled fitting. Furthermore, the remodeled fitting may be applied to, for example, a fixed type remodeled fitting in which the glass is attached fixedly to the frame without opening or closing. [Explanation of symbols]

[0078] 1 Renovated fittings, 2 New frame, 3 Attachment frame, 6 Existing frame, 8 Connection member, 61 Existing upper frame, 62 Existing lower frame, 63 Existing vertical frame, 81 Upper frame connection member, 82 Lower frame connection member, 83 Vertical frame connection member, 611, 612 Guide rail (existing upper frame guide rail)

Claims

1. A sash construction method in which a new frame is placed on the inner periphery of an existing frame, a step of assembling the newly installed frame around four sides; a step of attaching an attachment frame to the outer periphery of the newly assembled frame; a step of connecting a connecting member to the existing frame; and a step of connecting the attachment frame attached to the new frame and the connection member attached to the existing frame. Building construction methods.

2. The attachment frame has an upper attachment frame, a lower attachment frame, and left and right vertical attachment frames, and is attached to the four periphery of the new frame, The connecting member has an upper frame connecting member, a lower frame connecting member, and left and right vertical frame connecting members, and is attached to the inner periphery of the existing frame. A method for installing the fixture according to claim 1.

3. The attachment frame has a vertical attachment frame and a lower attachment frame, and the vertical attachment frame and the lower attachment frame are connected to each other. A method for installing the fixture according to claim 1 or 2.

4. The attachment frame has an attachment indoor side prospective direction extending portion that extends in the prospective direction on the indoor side of the prospective direction, The connecting member has a connecting member indoor-side prospective direction extending portion extending in the prospective direction on the indoor side in the prospective direction, The attachment indoor-side projection direction extending portion and the connection member indoor-side projection direction extending portion are fixed on the indoor side of the existing frame, A method for installing the fixture according to claim 1 or 2.

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