Renovated fittings

Abstract

To provide a renovation fitting capable of improving the workability of a new frame without being affected by the state of an existing frame while supporting the load of a new frame inside the room.SOLUTION: A renovation fitting to be attached to an existing frame placed in an opening of a building includes: a new frame composed of four perimeters; and an attachment frame that is attached to the inner circumference of the existing frame and attached around the outer circumference of the new frame. The new frame includes a new lower frame, and the attachment frame includes a lower attachment frame. The bottom surface of the new lower frame has an inclined surface that is inclined downward from the outdoor side to the indoor side, and between the new lower frame and the lower attachment frame, there is a spacer member that has a top surface contacting the inclined surface and inclined along the inclination of the inclined surface.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 by installing new fixtures in the openings. In the renovated fixtures renovated by 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] In the remodeling fixture described in Patent Document 1, a new frame is attached directly to the inner periphery of the existing frame attached to the opening of the building. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-196667 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the remodeling fixture described in Patent Document 1, since the new frame is directly attached to the inner circumference of the existing frame, the installation state of the new frame is easily affected by distortion of the existing frame, and there is room for improvement in workability. Furthermore, in the remodeling fixture, it is required that the load of the new frame can be supported on the inside of the room as much as possible. Therefore, with the conventional remodeling fixture, there is a problem of attaching the new frame with good workability without being affected by the state of the existing frame, and being able to support the load of the new frame on the inside of the room.

[0006] The present disclosure aims to provide a renovation fixture that can improve the workability of a newly constructed frame without being affected by the condition of the existing frame, and that can support the load of the newly constructed frame from the inside of the room. [Means for solving the problem]

[0007] The present disclosure relates to a renovation fitting that is attached to an existing frame provided at an opening in a building, comprising a new frame formed by assembling all four sides, and an attachment frame that is attached to the inner periphery of the existing frame while being attached to the outer periphery of the new frame by assembling all four sides, wherein the new frame includes a new bottom frame, and the attachment frame includes an attachment bottom frame, the underside of the new bottom frame has a sloping surface that slopes downward from the outside to the inside of the room, and a spacer member is provided between the new bottom frame and the attachment bottom frame, the spacer member abutting the sloping surface and having an upper surface that is inclined along the slope of the sloping surface. [Brief description of the drawings]

[0008] [Figure 1] This is a front view of a renovated sliding window type fixture seen from the outside. [Diagram 2] FIG. 2 is a vertical cross-sectional view of the remodeled fixture shown in FIG. 1. [Diagram 3] FIG. 2 is a cross-sectional view of the remodeled fixture shown in FIG. 1. [Figure 4] This is an oblique view from the outside of the room showing a new frame with an attachment frame attached to an existing frame. [Diagram 5] FIG. 4 is a perspective view showing a state in which the exterior decorative cover is attached. [Figure 6] This is an oblique view from the inside of the room showing a new frame with an attachment frame attached to an existing frame. [Figure 7] 1 is a perspective view showing the state in which an interior decorative member and a trim material are installed. FIG. [Figure 8] This is an oblique view showing the state in which a new frame with an attachment frame attached is attached to an existing frame. [Figure 9] This is an oblique view showing the state of attaching an attachment frame to a new frame. [Figure 10] A cross-sectional view showing the state in which the attachment upper frame is attached to the newly installed upper frame. [Figure 11]A cross-sectional view showing the state in which the attachment lower frame is attached to the newly installed lower frame. [Figure 12] A cross-sectional view showing the state in which an attachment vertical frame on one side is attached to a newly installed vertical frame on one side. [Figure 13] A cross-sectional view showing the state in which the attachment vertical frame on the other side is attached to the newly installed vertical frame on the other side. [Figure 14] This is an enlarged cross-sectional view showing the attachment upper frame portion as it is attached to the newly installed upper frame. [Figure 15] An enlarged view showing the mounting portion between the new upper frame and the attachment upper frame. [Figure 16] This is a vertical cross-sectional view showing an enlarged view of the upper frame side of a decorative window type renovated fixture. [Figure 17] 17 is an enlarged view showing the engagement portion between the new upper frame and the attachment upper frame in FIG. 16. FIG. [Figure 18] A cross-sectional view showing an enlarged view of the new lower frame and the attachment lower frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. The remodeling fixture 1 according to this embodiment is a remodeling fixture 1 for remodeling, which is formed by newly installing a new member 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" is also 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] The remodeled fitting 1 according to this embodiment is a remodeled sash of a sliding window type that is placed in an opening of a building 100. The remodeled fitting 1 is attached to an existing frame 6 provided in the opening of the building 100.

[0012] As shown in Figs. 1 to 7, the remodeled fitting 1 comprises a new frame 2, an attachment frame 3 attached to the inside of an existing frame 6 while attached to the outer periphery of the new frame 2, interior decorative members 41, 42, 43 (cover members), exterior decorative covers 51, 52, 53, and shoji screens 10, 10 slidably accommodated within the new frame 2. The existing frame 6 is provided at an opening of a building 100. The new frame 2 is attached to the inside of the existing frame 6 while the attachment frame 3 is attached to the outer periphery. The attachment frame 3 is disposed between the existing frame 6 and the new frame 2.

[0013] First, a description will be given of 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 into a rectangular frame shape. 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.

[0014] 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 for the existing shoji screen that are erected downward. The inside X2 portion of the existing upper frame 61 is fixed to the building 100 (structure).

[0015] 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 stand upright toward the top. The inside X2 portion of the existing lower frame 62 is fixed to the building 100 (structure).

[0016] 3, the existing vertical frames 63 are attached to the left and right vertical sides of the exterior side X1 of the opening of the building 100. The interior side X2 portion of the existing vertical frames 63 is fixed to the building 100 (framework).

[0017] 8 and 9, the new frame 2 is attached to the existing frame 6 with the attachment frame 3 attached to the outer periphery. The new frame 2 is constructed from four sides and is attached to the inner periphery of the existing frame 6 via the attachment frame 3.

[0018] 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, the new upper frame 21, the new lower frame 22, and the left and right new vertical frames 23 are fixed with screws at the parts where they join together. The attachment frame 3 includes an upper attachment frame 31, a lower attachment frame 32, and left and right vertical attachment frames 33.

[0019] With the new frame 2, with the attachment frame 3 attached to its outer periphery, attached to the existing frame 6, the new upper frame 21 is attached to the inner periphery (underside) of the existing upper frame 61, with the attachment upper frame 31 sandwiched between them, as shown in Fig. 2. The new upper frame 21 is made of, for example, a metal material or a resin material, and has guide rails 211, 212 on the upper side of the shoji screens 10, 10 that are erected facing downward. A resin angle member 213 is provided on the interior side X2 of the new upper frame 21. The resin angle member 213 is arranged with a gap between it and the frame member 101.

[0020] The new upper frame 21 is divided into two in the projection direction, an outdoor frame section 21A and an indoor frame section 21B, and has a structure in which the outdoor frame section 21A and the indoor frame section 21B are integrally connected by a resin bridge material 214. The resin bridge material 214 blocks the transfer of heat in the indoor / outdoor directions in the new upper frame 21. Therefore, the new upper frame 21 has excellent thermal insulation properties.

[0021] With the new frame 2, with the attachment frame 3 attached to its outer periphery, attached to the existing frame 6, the new sill 22 is attached to the inner periphery of the existing sill 62, with the attachment sill 32 sandwiched between them, as shown in Fig. 2. The new sill 22 is made of, for example, a metal material or a resin material, and has guide rails 221, 222 on the lower side of the shoji screens 10, 10 that stand upward. A resin angle member 223 is provided on the interior side X2 of the new sill 22. The resin angle member 223 is disposed with a gap between it and the frame member 101.

[0022] The new lower frame 22 is divided into two in the projection direction, an outdoor side frame section 22A and an indoor side frame section 22B, and has a structure in which the outdoor side frame section 22A and the indoor side frame section 22B are integrally connected by a resin bridge material 224. The resin bridge material 224 blocks the transfer of heat in the indoor / outdoor directions in the new lower frame 22. Therefore, the new lower frame 22 has excellent thermal insulation properties.

[0023] In a state in which the new frame 2 with the attachment frame 3 attached to its outer periphery is attached to the existing frame 6, the new vertical frame 23 is attached to the inner periphery side of the existing vertical frame 63 with the attachment vertical frame 33 sandwiched therebetween as shown in Fig. 3. The new vertical frame 23 is formed of, for example, a metal material or a resin material. A resin angle member 233 is provided on the room inside X2 of the new vertical frame 23. The resin angle member 233 is disposed with a gap between it and the frame member 101.

[0024] The above-mentioned new frame 2 (new upper frame 21, new lower frame 22, and left and right new vertical frames 23) are attached to the inner circumference side 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.

[0025] The attachment frame 3 is attached to the outer periphery of the new frame 2 in a four-way configuration. The attachment frame 3 is attached to the inner periphery of the existing frame 6 in a state in which the attachment frame 3 is attached to the outer periphery of the new frame 2 in a four-way configuration.

[0026] 8 and 9, the attachment frame 3 is configured by arranging an upper attachment frame 31, a lower attachment frame 32, and a pair of vertical attachment frames 33 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, an aluminum material.

[0027] 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 side of the attachment frame 3 and extends in the left-right direction (horizontal direction). The vertical attachment frame 33 is disposed at the end sides in the left-right direction of the attachment frame 3 and extends in the up-down direction.

[0028] As shown in Figures 8 and 9, the attachment frame 3 is configured in a so-called vertical overhanging structure, in which the longitudinal ends of the attachment vertical frame 33 are positioned outside the longitudinal ends of the attachment upper frame 31 and the attachment lower frame 32 so as to cover the longitudinal ends of the attachment upper frame 31 and the attachment lower frame 32.

[0029] When the attachment frame 3 is attached to the inner periphery of the existing frame 6, it is disposed between the new frame 2 and the existing frame 6. As shown in FIG. 10, the attachment upper frame 31 is placed on the upper surface of the new upper frame 21, and then fixed to the new upper frame 21 by a fixing screw 31a penetrating from the attachment upper frame 31 to the new upper frame 21 and a fixing screw 31b penetrating from the new upper frame 21 to the attachment upper frame 31, as shown in FIG. 2 and FIG. 15. As shown in FIG. 11, the attachment lower frame 32 is attached in a state of being hooked to the new lower frame 22, and then fixed to the new lower frame 22 by fixing screws 32a and 32b penetrating from the attachment lower frame 32 to the new lower frame 22, as shown in FIG. 2. The attachment vertical frame 33 is attached in a state of being hooked to the new vertical frame 23, as shown in FIG. 12 and FIG. 13.

[0030] With the upper attachment frame 31, the lower attachment frame 32, and the pair of vertical attachment frames 33 attached to the outer periphery of the new frame 2, the upper attachment frame 31, the lower attachment frame 32, and the pair of vertical attachment frames 33 are fixed to each other with screws at the assembly portions of any two of the frames. Specifically, the upper and lower ends of each of the pair of vertical attachment frames 33 are fixed to both longitudinal ends of the upper attachment frame 31 with screws, and the upper and lower ends of each of the pair of vertical attachment frames 33 are fixed to both longitudinal ends of the lower attachment frame 32 with screws.

[0031] 2 and 10, the upper attachment frame 31 is divided into two parts in the prospective direction, an outdoor frame section 31A and an indoor frame section 31B, and the outdoor frame section 31A and the indoor frame section 31B are integrally connected by a resin bridge material 311. The resin bridge material 311 blocks the transfer of heat in the indoor / outdoor directions via the upper attachment frame 31. Therefore, the upper attachment frame 31 has excellent thermal insulation properties.

[0032] 2, 10 and 15, the outdoor frame section 31A of the attachment upper frame 31 has an outdoor upward extending plate section 312 (front-facing extending plate section), an indoor / outdoor extending section 313, a first hollow section 314, a screw fixing section 315, an L-shaped hook piece 316a, and an outdoor downward abutment piece 316b. The indoor frame section 31B of the attachment upper frame 31 has a second hollow section 317 and an indoor horizontal extending plate 318. The upper surface 314a of the first hollow section 314 and the upper surface 317a of the second hollow section 317 are disposed at the same height and form the same flat plane.

[0033] The exterior upward extending plate portion 312 is formed in a plate shape extending upward from the end portion on the exterior side X1 of the indoor / outdoor direction extending portion 313. The exterior upward extending plate portion 312 is arranged on the exterior side X1 and extends upward (upward in the view direction). A pair of engaging protrusions 312a arranged separately above and below are formed on the lower side of the exterior side X1 surface of the exterior upward extending plate portion 312. A pair of engaging protrusions 51a of the exterior decorative cover 51 engages with and is attached to the pair of engaging protrusions 312a.

[0034] The indoor / outdoor extending portion 313 extends from the lower end of the outdoor upward extending plate portion 312 toward the indoor side X2. The indoor / outdoor extending portion 313 functions as a water reservoir when water such as rain infiltrates from the outdoor side X1. The first hollow portion 314 is disposed on the indoor side X2 of the outdoor frame portion 310A. As shown in FIG. 10 and FIG. 15, the upper surface 314a of the first hollow portion 314 is disposed above the indoor / outdoor extending portion 313. The screw fixing portion 315 is disposed between the indoor / outdoor extending portion 313 and the first hollow portion 314. The screw fixing portion 315 is a base portion through which the fixing screw 31a for fixing the attachment upper frame 31 to the outer periphery side of the new upper frame 21 penetrates from above the attachment upper frame 31 toward the new upper frame 21, and extends along the longitudinal direction of the attachment upper frame 31.

[0035] The screw fixing portion 315 is disposed below the upper surface 314a of the first hollow portion 314, but above the bottom surface of the indoor / outdoor direction extending portion 313. Therefore, even if water infiltrates onto the indoor / outdoor direction extending portion 313 from the outside X1, the water remains on the indoor / outdoor direction extending portion 313, the bottom surface of which is disposed below the screw fixing portion 315, and does not infiltrate onto the screw fixing portion 315. This prevents water from leaking from the attachment upper frame 31 to the newly installed upper frame 21 side along the fixing screws 31a penetrating the screw fixing portion 315, improving the waterproofing of the attachment upper frame 31. Water on the indoor / outdoor direction extending portion 313 is drained from the end of the indoor / outdoor direction extending portion 313 into the inside of the attachment vertical frame 33.

[0036] The L-shaped hook piece 316a is disposed on the underside of the indoor / outdoor extending portion 313, protrudes downward toward the new upper frame 21, and has an L-shaped bent shape toward the indoor side X2. The L-shaped hook piece 316a is a portion that serves as a mounting portion when the new upper frame 21 is hooked and mounted. The mounting structure of the new upper frame 21 using this L-shaped hook piece 316a will be described later.

[0037] The outdoor lower abutment piece 316b is integrally provided at the lower end of the L-shaped hook piece 316a and protrudes toward the outdoor side X1. The outdoor lower abutment piece 316b is formed in a plate shape having a predetermined width in the projection direction, and is slightly inclined downward toward the outdoor side along the inclination of the outdoor side upper surface 21a of the new upper frame 21. The outdoor lower abutment piece 316b is placed on the upper surface 21a of the new upper frame 21 via a packing member 319a made of resin, rubber, or the like between the outdoor lower abutment piece 316b and the upper surface 21a of the new upper frame 21. With the outdoor lower abutment piece 318 placed on the upper surface 21a of the new upper frame 21, the attachment upper frame 31 is fixed to the new upper frame 21 by the fixing screw 31a penetrating the screw fixing portion 315 and the fixing screw 31b penetrating from the new upper frame 21 toward the second hollow portion 317. The outdoor side lower abutment piece 316b is formed in a plate shape having a predetermined width in the projection direction, so that the outdoor side X1 of the attachment upper frame 31 can be stably attached to the upper surface 21a of the outdoor side X1 of the newly installed upper frame 21.

[0038] As shown in Figs. 14 and 15, the resin bridge material 311 of the attachment upper frame 31 is provided across the opposing side surfaces 314b, 317b of the first hollow portion 314 and the second hollow portion 317 of the attachment upper frame 31. Specifically, the side surfaces 314b, 317b are provided with a plurality of grooves 314c, 317c extending in the longitudinal direction of the attachment upper frame 31, which are parallel to each other in the vertical direction. The resin bridge material 311 is composed of a plurality of long strip-shaped bridge portions 311a, 311b along the longitudinal direction of the outdoor frame portion 31A and the indoor frame portion 31B. The widthwise ends of the strip-shaped bridge portions 311a, 311b are fitted into the grooves 314c, 317c, respectively, to integrally connect the outdoor frame portion 31A and the indoor frame portion 31B.

[0039] Because the resin bridge material 311 is composed of multiple band-shaped bridge parts, it is possible to appropriately adjust the number, spacing, and thickness of the band-shaped bridge parts according to the vertical thickness of the outdoor-side frame part 31A and the indoor-side frame part 31B of the attachment upper frame 31. In other words, by appropriately adjusting the number, spacing, and thickness of band-shaped bridge parts of the same shape, it is possible to easily accommodate attachment upper frames of different thicknesses.

[0040] A gasket member 319b made of resin or rubber is arranged on the lower surface side of the resin bridge material 311 in the attachment upper frame 31 across the outdoor frame portion 31A and the indoor frame portion 31B, preventing the outdoor frame portion 31A and the indoor frame portion 31B from being thermally connected via the new upper frame 21. Furthermore, as shown in FIG. 10, when the attachment upper frame 31 is overlapped on the new upper frame 21, the outdoor frame portion 31A of the attachment upper frame 31 is overlapped on the outdoor frame portion 21A of the new upper frame 21, and the indoor frame portion 31B of the attachment upper frame 31 is overlapped on the indoor frame portion 21B of the new upper frame 21. Therefore, heat is not transferred in the indoor / outdoor direction via the outdoor frame portions 21A, 31A and the indoor frame portions 21B, 31B of the new upper frame 21 and the attachment upper frame 31.

[0041] The upper surfaces of the outdoor frame portion 31A and the indoor frame portion 31B of the attachment upper frame 31 are formed by the upper surface 314a of the first hollow portion 314 and the upper surface 317a of the second hollow portion 317. These upper surfaces 314a, 317a form flat surfaces of the same height. In this embodiment, as shown in FIG. 10, the outer circumferential side of the attachment upper frame 31 is formed with an L-shaped space S1 as shown by the imaginary line (two-dot chain line) by the space from the upper side of the upper surface 314a of the first hollow portion 314 and the upper surface 317a of the second hollow portion 317 to the space in front of the outdoor upward extending plate portion 312 from the indoor side X2 toward the outdoor side X1. The L-shaped space S1 is formed on the outer periphery of the attachment upper frame 31 along the indoor side X2 surface of the outdoor side upward extending plate portion 312, the upper surface 314a of the first hollow portion 314, and the upper surface 317a of the second hollow portion 317.

[0042] This allows the existing upper frame 61 to be stored in the L-shaped space S1, so that the attachment frame 3 with the new frame 2 attached can be easily attached to the existing frame 6. In particular, in this embodiment, the upper surface 314a of the first hollow portion 314 and the upper surface 317a of the second hollow portion 317 are formed along the indoor / outdoor direction of the attachment upper frame 31, so that the attachment upper frame 31 with the new upper frame 21 attached can be attached to the existing upper frame 61 in a manner that corresponds to existing frames 6 of various shapes and does not get in the way during attachment.

[0043] The indoor side horizontal extension plate 318 is disposed at the end of the attachment upper frame 31 closest to the indoor side X2. The indoor side horizontal extension plate 318 extends horizontally from the end of the upper surface 317a of the second hollow portion 317 on the indoor side X2 towards the indoor side X2. The indoor side horizontal extension plate 318 is disposed on the same plane as the upper surface 317a of the second hollow portion 317, and is formed in a planar shape over the entire longitudinal area of ​​the attachment upper frame 31.

[0044] As shown in Fig. 2, when the attachment frame 3 is fixed to the building 100 (frame), the indoor-side horizontal extension plate 318 is disposed with the mounting screw 34 penetrating therethrough. In this way, the indoor-side horizontal extension plate 318 is fixed to the building 100 (frame) by the mounting screw 34. When a gap is formed between the indoor-side horizontal extension plate 318 and the frame member 101, a spacer member 341 is disposed. The spacer member 341 is made up of a plurality of sheets, and the thickness of the sheet for filling the gap is set according to the size of the gap between the indoor-side horizontal extension plate 318 and the frame member 101.

[0045] 2 and 10, the attachment lower frame 32 is divided into two in the prospective direction, an outdoor frame section 32A and an indoor frame section 32B, and the outdoor frame section 32A and the indoor frame section 32B are integrally connected by a resin bridge material 321. The resin bridge material 321 blocks the transfer of heat in the indoor / outdoor directions via the attachment lower frame 32, improving the insulation performance.

[0046] 2 and 11, the outdoor frame portion 32A of the attachment lower frame 32 has an outdoor downward extending plate portion 322 (a plate portion extending in the facing direction), an indoor / outdoor extending portion 323, and an indoor upward extending plate portion 324. The indoor frame portion 32B of the attachment lower frame 32 has a hollow portion 325, an L-shaped hook piece 326, an indoor upward extending plate 327, and an indoor horizontal extending plate 328.

[0047] The exterior downward extending plate portion 322 is formed in a plate shape extending downward from the end portion of the exterior side X1 of the indoor / outdoor direction extending portion 323. The exterior downward extending plate portion 322 is arranged on the exterior side X1 and extends downward (downward in the view direction). A pair of engagement protrusions 322a arranged separately above and below are formed on the upper side of the exterior side X1 surface of the exterior downward extending plate portion 322. A pair of engagement protrusions 52a of the exterior decorative cover 52 engages with and is attached to the pair of engagement protrusions 322a.

[0048] The indoor / outdoor direction extending portion 323 extends from a lower end portion of the outdoor-side downward extending plate portion 322 toward the indoor side X2. The indoor / outdoor direction extending portion 323 is a portion through which fixing screws 32a for fixing the attachment lower frame 32 to the outer periphery of the new lower frame 22 penetrate from the lower side of the attachment lower frame 32 toward the new lower frame 22, and extends along the longitudinal direction of the attachment lower frame 32. The indoor-side upward extending plate portion 324 extends upward from the indoor-side X2 end portion of the indoor / outdoor direction extending portion 323, and faces an outdoor-side X1 side surface 325a of a hollow portion 325 of the indoor-side frame portion 32B arranged on the indoor side X2 side.

[0049] As shown in Fig. 18, the resin bridge material 321 of the attachment lower frame 32 is provided across the indoor-side upward extending plate portion 324 of the outdoor-side frame portion 32A and the outdoor-side X1 side surface 325a of the hollow portion 325 of the indoor-side frame portion 32B. Specifically, a plurality of groove portions 324b, 325b extending in the longitudinal direction of the attachment lower frame 32 are provided in parallel in the vertical direction on the indoor-side X2 side surface 324a of the indoor-side upward extending plate portion 324 and the outdoor-side X1 side surface 325a of the hollow portion 325. The resin bridge material 321 is composed of a plurality of long band-shaped bridge portions 321a, 321b extending along the longitudinal directions of the outdoor-side frame portion 32A and the indoor-side frame portion 32B, respectively. Both widthwise ends of the band-shaped bridge portions 321a, 321b are fitted into the groove portions 324b, 325b, respectively, whereby the outdoor frame portion 32A and the indoor frame portion 32B are integrally connected.

[0050] Because the resin bridge material 321 is composed of multiple band-shaped bridge parts, it is possible to appropriately adjust the number, spacing, and thickness of the band-shaped bridge parts according to the vertical thickness of the outdoor-side frame part 32A and the indoor-side frame part 32B of the attachment lower frame 32. In other words, by appropriately adjusting the number, spacing, and thickness of band-shaped bridge parts of the same shape, it is possible to easily accommodate attachment lower frames of different thicknesses.

[0051] A gasket member 329 made of resin or rubber is arranged on the upper surface side of the resin bridge material 321 in the attachment lower frame 32, spanning the outdoor frame portion 32A and the indoor frame portion 32B, to prevent the outdoor frame portion 32A and the indoor frame portion 32B from being thermally connected via the new lower frame 22. Furthermore, as shown in FIG. 11, when the attachment lower frame 32 is overlapped on the new lower frame 22, the outdoor frame portion 32A of the attachment lower frame 32 is overlapped on the outdoor frame portion 22A of the new lower frame 22, and the indoor frame portion 32B of the attachment lower frame 32 is overlapped on the indoor frame portion 22B of the new lower frame 22. Therefore, heat is not transferred in the indoor / outdoor direction via the outdoor frame portions 22A, 32A and the indoor frame portions 22B, 32B of the new lower frame 22 and the attachment lower frame 32.

[0052] The lower surface of the attachment lower frame 32 is formed in a flat shape so as not to come into contact with the inner periphery of the existing frame 6 when the attachment frame 3 with the new frame 2 attached thereto is attached to the inner periphery of the existing frame 6. In this embodiment, as shown in Fig. 11, an L-shaped space S2 is formed on the outer periphery of the attachment lower frame 32 as shown by a virtual line (two-dot chain line) by the space in front of the outdoor downward extending plate portion 322 from the indoor side X2 toward the outdoor side X1, and the space from the space in front of the outdoor downward extending plate portion 322 toward the downward side. The L-shaped space S2 is formed on the outer periphery of the attachment lower frame 32 along the indoor side X2 surface of the outdoor downward extending plate portion 322 and the lower surface of the attachment lower frame 32.

[0053] As a result, the existing lower frame 62 can be accommodated in the L-shaped space S2, so that the attachment frame 3 with the new frame 2 attached can be easily attached to the existing frame 6. In particular, in this embodiment, as shown in FIG. 2, the lower surface of the attachment lower frame 32 is formed along the indoor / outdoor direction of the attachment lower frame 32, so that the attachment lower frame 32 with the new lower frame 22 attached can be attached to the existing lower frame 62 so as not to get in the way during attachment in response to various shapes of existing frames 6. When the attachment frame 3 with the new frame 2 attached is attached to the existing frame 6, it is attached in a tilted state so that the lower end side is located closer to the existing frame 6 than the upper end side, so that the entire attachment frame 3 is attached to the existing frame 6 after the existing lower frame 62 enters the L-shaped space S2. Therefore, by fitting the L-shaped space S2 into the existing lower frame 62, the attachment frame 3 with the new frame 2 attached can be easily attached to the existing frame 6.

[0054] The L-shaped hook piece 326 is disposed on the upper surface of the indoor / outdoor extending portion 323, protrudes upward toward the new lower frame 22, and has an L-shaped bent shape toward the outside side X1. As shown in Fig. 11, when the new lower frame 22 is attached, the L-shaped hook piece 326 is hooked onto the hook piece 225 protruding downward on the outside side X1 of the new lower frame 22, thereby engaging with the new lower frame 22 at the outside side X1. In this state, the outside side X1 of the attachment lower frame 32 is fixed by a fixing screw 32a that passes through the indoor / outdoor extending portion 323 from the new lower frame 22, as shown in Fig. 2.

[0055] The indoor side upward extension plate 327 is disposed at the end of the attachment lower frame 32 closest to the indoor side X2. The indoor side upward extension plate 327 extends upward from the end of the upper surface of the hollow portion 325 on the indoor side X2, and is formed in a planar shape over the entire longitudinal area of ​​the attachment lower frame 32. As shown in Figs. 2 and 11, when the attachment lower frame 32 is attached to the new lower frame 22, the indoor side upward extension plate 327 abuts against the indoor side X2 side surface of the indoor side downward extension plate 226 extending downward from the end of the new lower frame 22 on the indoor side X2. In this state, the indoor side X2 of the attachment lower frame 32 is fixed by a fixing screw 32b that penetrates laterally from the indoor side X2 to the outdoor side X1 from the indoor side upward extension plate 327 of the attachment lower frame 32 to the indoor side downward extension plate 226 of the newly installed lower frame 22, as shown in Figure 2.

[0056] The indoor side horizontal extension plate 328 is disposed at the end of the attachment lower frame 32 on the innermost side X2. The indoor side horizontal extension plate 328 extends horizontally from the end of the lower surface of the hollow portion 325 on the indoor side X2 toward the indoor side X2, and is formed in a planar shape over the entire longitudinal area of ​​the attachment lower frame 32. As shown in FIG. 2, the indoor side horizontal extension plate 328 is disposed so that the mounting screws 35 penetrate therethrough when the attachment frame 3 is fixed to the building 100 (structure). As a result, the indoor side horizontal extension plate 328 is fixed to the building 100 (structure) by the mounting screws 35.

[0057] The vertical attachment frame 33 is arranged in a so-called vertically extending structure in which the longitudinal ends of the vertical attachment frame 33 are arranged outside the longitudinal ends of the upper attachment frame 31 and the lower attachment frame 32. As shown in Figures 3, 12 and 13, the vertical attachment frame 33 has a hollow portion 331, an exterior left-right direction extending plate portion 332 (finding direction extending plate portion), an interior room direction extending portion 333 (extending plate), an interior side extending portion 334, and a hook piece 335.

[0058] The hollow portion 331 of the vertical attachment frame 33 is formed in a hollow shape of a long and narrow rectangle extending in the indoor / outdoor direction. An outer peripheral side plane 331a is formed on the outer surface in the left-right direction of the hollow portion 331. The outer peripheral side plane 331a is formed on the outer peripheral side of the attachment frame 3 in the vertical attachment frame 33. The outer peripheral side plane 331a faces the existing vertical frame 63 and is formed in a planar shape extending in the indoor / outdoor direction and the up-down direction. The outer peripheral side plane 331a is formed over the entire longitudinal area of ​​the vertical attachment frame 33 and faces outward in the left-right direction.

[0059] The outer peripheral plane 331a is formed in a flat shape so as not to come into contact with the inner peripheral side of the existing frame 6 when the attachment frame 3 to which the new frame 2 is attached is attached to the inner peripheral side of the existing frame 6. In this embodiment, as shown in Figs. 12 and 13, the outer peripheral side of the attachment vertical frame 33 is formed with an L-shaped space S3 as shown by a virtual line (two-dot chain line) by the space outside the left and right direction of the outer peripheral plane 331a and the space on the indoor side of the outdoor left and right extending plate portion 332 from the indoor side X2 toward the outdoor side X1. The L-shaped space S3 is formed on the outer peripheral side of the attachment vertical frame 33 along the indoor side X2 surface of the outdoor left and right extending plate portion 332 and the outer peripheral plane 331a.

[0060] This allows the existing vertical frame 63 to be stored in the L-shaped space S3, making it possible to easily attach the attachment frame 3 with the new frame 2 attached to the existing frame 6. In particular, in this embodiment, as shown in Fig. 3, the outer peripheral side flat surface 331a is formed along the indoor / outdoor direction of the attachment vertical frame 33, so that the attachment vertical frame 33 with the new vertical frame 23 attached can be attached to the existing vertical frame 63 in a manner that does not get in the way during attachment in accordance with existing frames 6 of various shapes.

[0061] 3, the indoor side indoor direction extending portion 333 extends from the end portion on the indoor side X2, which is the outer end portion in the left-right direction of the hollow portion 331, toward the indoor side X2. The indoor side flat surface 333a is formed in a flat shape over the entire area of ​​the attachment vertical frame 33 in the longitudinal direction.

[0062] When the attachment frame 3 is fixed to the building 100 (structure), the indoor side indoor direction extending portion 333 is disposed with the mounting screw 36 passing therethrough. As a result, the indoor side indoor direction extending portion 333 is fixed to the building 100 (structure) by the mounting screw 36. When a gap is formed between the indoor side indoor direction extending portion 333 and the frame member 101, a spacer member 361 is disposed. The spacer member 361 is composed of a plurality of sheets, and the thickness of the sheets for filling the gap is set according to the size of the gap between the indoor side indoor direction extending portion 333 and the frame member 101.

[0063] A pair of engagement protrusions 331b arranged separately on the left and right sides are formed on the exterior side X1 surface of the hollow portion 331. A pair of engagement protrusions 53a of the exterior decorative cover 53 is engaged with the pair of engagement protrusions 331b and attached.

[0064] The outdoor side left-right extending plate portion 332 is formed in a plate shape extending outward in the left-right direction from the end portion on the outdoor side X1 of the hollow portion 331. The outdoor side left-right extending plate portion 332 is disposed on the outdoor side X1 and extends in the left-right direction (view direction). The indoor side extending portion 334 extends inward in the left-right direction from the end portion on the indoor side X2 of the hollow portion 331.

[0065] The hook piece 335 protrudes toward the outside X1 from an inner end in the left-right direction of the outside side X1 of the hollow portion 331. When attaching the attachment vertical frame 33 to the new vertical frame 23, the hook piece 335 is hooked onto a hook piece 231 provided at an end of the outside side X1 of the new vertical frame 23, as shown in Figures 12 and 13. Note that the structure for fixing the attachment vertical frame 33 to the new vertical frame 23 may be a structure for fastening with screws or the like, instead of a hooking structure.

[0066] 2 and 3, the indoor side decorative members 41, 42, 43 are cover members attached to the resin angle members 213, 223, 233 of the new frame 2, respectively. The indoor side decorative members 41, 42, 43 cover the indoor side faces f1, f2, f3 that face the indoor side X2, which are formed by the new frame 2 and the attachment frame 3. The boundary between the indoor side decorative members 41, 42, 43 and the inner peripheral surface of the frame member 101 is shielded by a parting material 45 with an L-shaped cross section that is fixed to the frame member 101.

[0067] The indoor side decorative members 41, 42, 43 have a cover main body 46 and a cover mounting portion 47. The cover mounting portion 47 of each of the indoor side decorative members 41, 42, 43 is attached to the resin angle members 213, 223, 233 of the new frame 2. The cover main body 46 attached to the resin angle members 213, 223, 233 has predetermined spaces S11, S12, S13 between the new frame 2 and the indoor side surfaces f1, f2, f3 of the attachment frame 3. The spaces S11, S12, S13 extend along the longitudinal direction of the indoor side decorative members 41, 42, 43, respectively.

[0068] A first insulating material 46a is housed in each of the spaces S11, S12, and S13 between the cover body 46 and the indoor side surfaces f1, f2, and f3. The first insulating material 46a is made of resin, specifically extruded polystyrene foam, beaded polystyrene, urethane resin, or rubber, and is housed throughout the entire longitudinal length of the spaces S11, S12, and S13. By housing the first insulating material 46a in the spaces S11, S12, and S13, the transfer of heat from the outdoor side X1 of the remodeled fitting 1 to the indoor side X2 is suppressed, improving the insulating performance of the remodeled fitting 1.

[0069] The cover body 46 of the indoor side decorative members 41, 42, 43 each has a cover body hollow portion 461 extending in the longitudinal direction of the cover body 46. The cover body hollow portion 461 is formed in a rectangular cross section and is disposed on the inner periphery side and at a corner portion on the indoor side X2 of each of the indoor side decorative members 41, 42, 43. The cover body hollow portion 461 extends along the longitudinal direction of each of the indoor side decorative members 41, 42, 43.

[0070] The inside of the cover body hollow portion 461 is filled with the second insulating material 46b. The second insulating material 46b is made of, for example, resin, specifically, extruded polystyrene foam, beaded polystyrene, urethane resin, or rubber, and is filled over the entire longitudinal area of ​​the cover body hollow portion 461. By filling the cover body hollow portion 461 with the second insulating material 46b, the transfer of heat from the outdoor side X1 to the indoor side X2 of the renovated fitting 1 is further suppressed, and the insulating performance of the renovated fitting 1 is further improved. The cover body 46 of the indoor side decorative members 41, 42, and 43 may be provided with only the first insulating material 46a or only the second insulating material 46b.

[0071] In the construction method of the remodeled fitting 1 of this embodiment, the first insulating material 46a is arranged along the indoor side surfaces f1, f2, f3 of the new frame 2 and the attachment frame 3 before attaching the indoor side decorative members 41, 42, 43. The second insulating material 46b is pre-filled inside the hollow portion 461 of the cover body at a manufacturing factory or the like for the indoor side decorative members 41, 42, 43. After the first insulating material 46a is arranged in the space portions S11, S12, S13, the indoor side decorative members 41, 42, 43 are attached to the resin angle members 213, 223, 233 of the new frame 2 from the indoor side X2 of the remodeled fitting 1, and are attached by screws 48, respectively. This allows the indoor side X2 of the remodeled fitting 1 to have an additional insulating function, and the insulating performance of the remodeled fitting 1 can be easily improved.

[0072] Next, a case where the attachment upper frame 31 is attached by hooking it onto a new upper frame will be described. The new upper frame 20 shown in Fig. 16 and Fig. 17 is a new upper frame for a decorative window. This new upper frame 20 has a hook piece 215 on the outside side X1 that can engage with the L-shaped hook piece 316a of the attachment upper frame 31. The hook piece 215 protrudes toward the outside side X1.

[0073] When attaching the attachment upper frame 31 to the new upper frame 20 having the hook piece 215, the L-shaped hook piece 316a of the attachment upper frame 31 is hooked onto the hook piece 215 of the new upper frame 20 on the outside X1. That is, in the case of a new upper frame 21 without a hook piece, the attachment upper frame 31 is attached by placing the outside lower abutment piece 316b provided at the lower end of the L-shaped hook piece 316a on the upper surface 21a of the outside X1 of the new upper frame 21. In the case of a new upper frame 20 having the hook piece 215, the attachment upper frame 31 is attached by placing the L-shaped hook piece 316a on the upper surface 21a of the outside X1 of the hook piece 215 of the new upper frame 20.

[0074] In this way, the attachment upper frame 31 of this embodiment can be used in common whether the newly installed upper frame has a hook piece or not, and the same attachment strength can be ensured for any newly installed upper frame. Since the outdoor lower abutment piece 316b is integrally provided on the lower end of the L-shaped hook piece 316a, the structure of the attachment upper frame 31 can be simplified.

[0075] 2, a reinforcing member 7 for receiving the load of the new frame 2 and the attachment frame 3 is provided between the attachment lower frame 32 and the existing lower frame 62 in the attachment frame 3 attached to the outer periphery side of the new frame 2. The reinforcing member 7 is formed of a load-bearing material such as hard resin, ceramics, CFRP (Carbon Fiber Reinforced Plastics), metal, etc., and is formed in a plate shape having a predetermined width in the prospective direction. The reinforcing member 7 may be a long member extending along the longitudinal direction of the attachment lower frame 32, or may be a plurality of short members arranged at intervals in the longitudinal direction of the attachment lower frame 32.

[0076] As shown in FIG. 11, flat surfaces 320a and 320b are formed on the lower surface of the attachment lower frame 32 of this embodiment from the outdoor frame part 32A facing the existing lower frame 62 to the middle part of the indoor frame part 32B. A step part 320c bent downward is formed at the end of the indoor side X2 of the flat surface 320b on the indoor frame part 32B side. An engagement piece 320d bent in an L-shape toward the indoor side X2 is provided on the lower surface of the outdoor frame part 32A. An engagement piece 320e extending toward the outdoor side X1 is provided at the lower end of the step part 320c of the indoor frame part 32B. The reinforcing member 7 is disposed in the space surrounded by the flat surfaces 320a and 320b and the engagement pieces 320d and 320e, and engages with the engagement pieces 320d and 320e. As a result, the reinforcing member 7 is disposed on the outer peripheral surface side of the attachment lower frame 32.

[0077] As shown in FIG. 2, the end of the reinforcing member 7 on the outside X1 side is disposed between the flat surface 320a of the outside frame portion 32A and the guide rail 622 of the existing lower frame 62. The guide rail 622 is a protruding piece disposed below the outside frame portion 32A and protruding upward from the existing lower frame 62. The end of the reinforcing member 7 on the inside X2 side is disposed between the flat surface 320b of the inside frame portion 32B and the frame member 101. This allows the reinforcing member 7 to support the entire load of the new frame 2 and the attachment frame 3, particularly the load on the attachment lower frame 32, from below. Furthermore, the reinforcing member 7 of this embodiment is placed on the guide rail 622 of the existing lower frame 62 on the outside X1 side and on the frame member 101 on the inside X2 side, so that the entire load of the new frame 2 and the attachment frame 3 can be stably supported.

[0078] The reinforcing member 7 is disposed so as to cover the lower part of the resin bridge material 321 across the outdoor frame part 32A and the indoor frame part 32B connected via the resin bridge material 321 in the attachment lower frame 32, and therefore can reinforce the part of the resin bridge material 321 that is relatively vulnerable to loads from above. Moreover, when the reinforcing member 7 is formed of a nonmetallic material with low thermal conductivity, there is no risk of heat being transferred between the outdoor frame part 32A and the indoor frame part 32B via the reinforcing member 7. When the reinforcing member 7 contains a metallic material, it is desirable to provide a heat insulating layer 71 made of a nonmetallic material with low thermal conductivity, such as resin or rubber, at least on the upper surface side that abuts against the attachment lower frame 32, as shown in FIG.

[0079] The reinforcing member 7 is fixed to the flat surface 320b of the indoor frame part 32B by the screw 7a while being accommodated in the reinforcing member accommodation space S30 of the attachment lower frame 32, as shown in Fig. 2. The reinforcing member 7 can be attached to the attachment lower frame 32 before it is attached to the newly installed lower frame 22, improving the workability when assembling the remodeling fixture 1. However, since the attachment lower frame 32 of this embodiment has the reinforcing member 7 engaged with the engagement pieces 320d, 320e, the reinforcing member 7 does not necessarily have to be fixed by the screw 7a. The reinforcing member 7 may be adhered to the attachment lower frame 32 by double-sided tape or the like.

[0080] 2, 11 and 18, the underside of the outdoor frame part 22A of the newly-installed lower frame 22 has an inclined surface 227 that slopes downward from the outdoor side X1 to the indoor side X2. The inclined surface 227 is disposed on the underside of a first hollow part 228 provided in the outdoor frame part 22A of the newly-installed lower frame 22 and on the indoor side X2, and is formed by a protruding piece that slopes downward toward the indoor side X2.

[0081] A spacer member 8 is provided on the upper surface of the indoor / outdoor extending portion 323 of the attachment lower frame 32 corresponding to the lower side of the inclined surface 227 of the new lower frame 22. The spacer member 8 is formed, for example, in a block shape from a resin material, and has an upper surface 81 that abuts against the inclined surface 227 when the attachment lower frame 32 is attached to the new lower frame 22 and is inclined downward toward the indoor side X2 along the inclination of the inclined surface 227. The spacer member 8 may be a long member extending along the longitudinal direction of the attachment lower frame 32, or may be a plurality of short members arranged at intervals along the longitudinal direction of the attachment lower frame 32.

[0082] As shown in Fig. 18, the spacer member 8 has a protrusion 82 that protrudes downward from the end of the outdoor side X1. The protrusion 82 is inserted into and engaged with a groove 323a provided on the upper surface of the indoor / outdoor extending part 323 of the outdoor side frame part 32A of the attachment lower frame 32, and is attached to the indoor / outdoor extending part 323. This allows the spacer member 8 to be attached in advance to the attachment lower frame 32 before it is attached to the newly installed lower frame 22, improving workability when assembling the remodeled fitting 1. The groove 323a in this embodiment is formed by a tapping hole that extends along the longitudinal direction of the attachment lower frame 32.

[0083] When the attachment lower frame 32 is attached to the outer peripheral surface side of the new lower frame 22, as shown in Fig. 18, the inclined surface 227 of the new lower frame 22 is placed in contact with the upper surface 81 of the spacer member 8 of the attachment lower frame 32. At this time, the load F2 toward the spacer member 8 is directed toward the indoor side X2 due to the contact between the inclined surface 227 of the new lower frame 22 and the upper surface 81 of the spacer member 8. Therefore, the attachment lower frame 32 can bear the load of the new frame 2 on the indoor side X2 as much as possible.

[0084] As shown in Fig. 2, when the fixing screw 32b penetrating the indoor side upward extension plate 327 of the attachment lower frame 32 is screwed from the indoor side X2 toward the outdoor side X1 into the indoor side downward extension plate 226 of the new-installation lower frame 22, a force F2 from the indoor side X2 toward the outdoor side X1 acts on the new-installation lower frame 22, as shown in Fig. 18, and the new-installation lower frame 22 tries to move toward the outdoor side X1. At this time, the inclined surface 227 of the new-installation lower frame 22 and the upper surface 81 of the spacer member 8 are inclined upward from the indoor side X2 toward the outdoor side X1, so that the new-installation lower frame 22 can be effectively prevented from moving to the outdoor side X1.

[0085] 2 and 18, the spacer member 8 is disposed above the reinforcing member 7. This allows the load F1 applied to the attachment lower frame 32 via the spacer member 8 to be stably supported by the reinforcing member 7 on the lower surface side of the attachment lower frame 32. Moreover, the reinforcing member 7 in this embodiment is placed on the guide rail 622 of the existing lower frame 62, and the spacer member 8 is disposed directly above this guide rail 622. Therefore, the load F1 applied to the attachment lower frame 32 via the spacer member 8 can be supported even more stably by the reinforcing member 7.

[0086] The remodeling fixture 1 according to this embodiment has the following effects. That is, the remodeling fixture 1 is attached to an existing frame 6 provided at an opening of a building 100, and includes a new frame 2 configured by assembling all four sides, and an attachment frame 3 attached to the inner periphery of the existing frame 6 while being attached to the outer periphery of the new frame 2 by assembling all four sides. The new frame 2 includes a new lower frame 22, and the attachment frame 3 includes an attachment lower frame 32. The lower surface of the new lower frame 22 has an inclined surface 227 that slopes downward from the outside X1 to the inside X2, and between the new lower frame 22 and the attachment lower frame 32, there is a spacer member 8 that abuts against the inclined surface 227 and has an upper surface 81 that slopes along the slope of the inclination of the inclined surface 227. According to this, the load F1 from above toward the spacer member 8 is directed toward the indoor side X2 by the abutment between the inclined surface 227 of the new lower frame 22 and the upper surface 81 of the spacer member 8, so the attachment lower frame 32 can receive the load of the new frame 2 on the indoor side X2 as much as possible. Therefore, according to the remodeling fitting 1 according to this embodiment, the attachment frame 3 arranged between the new frame 2 and the existing frame 6 can improve the workability of the new frame 2 without being affected by the state of the existing frame 6, and can provide a remodeling fitting 1 that can support the load of the new frame 2 on the indoor side X2. Moreover, even if a force F2 from the indoor side X2 toward the outdoor side X1 acts on the new lower frame 22 and the new lower frame 22 tries to move to the outdoor side X1, the inclined surface 227 of the new lower frame 22 and the upper surface 81 of the spacer member 8 are inclined upward from the indoor side X2 toward the outdoor side X1, so that the new lower frame 22 can be effectively prevented from moving to the outdoor side X1.

[0087] In this embodiment, the existing frame 6 includes an existing lower frame 62. Between the attachment lower frame 32 and the existing lower frame 62, there is a reinforcing member 7 that supports the loads of the new frame 2 and the attachment frame 3. The spacer member 8 is disposed above the reinforcing member 7. This allows the load F1 applied to the attachment lower frame 32 via the spacer member 8 to be stably supported by the reinforcing member 7 on the lower surface side of the attachment lower frame 32.

[0088] In this embodiment, the existing lower frame 62 has a guide rail 622 which is a protruding piece rising upward. The reinforcing member 7 is placed on the upper end of the guide rail 622, and the spacer member 8 is disposed directly above the guide rail 622. This allows the reinforcing member 7 to more stably support the load F1 applied to the attachment lower frame 32 via the spacer member 8.

[0089] Although a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the above embodiment and can be modified as appropriate. For example, in the attachment frame 3, the resin bridge material is provided only on the upper attachment frame 31 and the lower attachment frame 32, but it may also be provided on the pair of vertical attachment frames 33 in the same manner.

[0090] In the above embodiment, the application of the remodeled fitting 1 to a remodeled sliding window sash has been described, but the present invention 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. The remodeled fitting may also be applied to, for example, a FIX type remodeled fitting that is fixed to the frame without opening or closing. [Explanation of symbols]

[0091] 1 Renovated fittings, 2 New frame, 3 Attachment frame, 6 Existing frame, 62 Existing lower frame, 7 Reinforcement member, 8 Spacer member, 22 New lower frame, 32 Attachment lower frame, 81 Top surface, 227 Sloping surface, 622 Guide rail (protruding piece), 100 Building

Claims

1. A renovation fixture that is attached to an existing frame installed in an opening of a building, A new frame consisting of four perimeters, An attachment frame is attached to the inner periphery side of the existing frame in a state where the attachment frame is attached to the outer periphery of the new frame in a four-way assembly, The new frame includes a new lower frame, The attachment frame includes an attachment lower frame, The lower surface of the new lower frame has an inclined surface that slopes downward from the outside to the inside of the room, A renovation fixture having a spacer member between the new lower frame and the attachment lower frame, the spacer member abutting the inclined surface and having an upper surface inclined along the slope of the inclined surface.

2. The existing frame includes an existing lower frame, A reinforcing member is provided between the attachment lower frame and the existing lower frame to support the load of the new frame and the attachment frame, The retrofit fixture of claim 1 , wherein the spacer member is positioned above the reinforcing member.

3. The existing lower frame has a protruding piece that rises upward, The reinforcing member is placed on an upper end of the protruding piece, The retrofit fixture according to claim 2 , wherein the spacer member is positioned directly above the protruding piece.

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