JP7799480B2 - Renovation fixtures and construction methods for renovation fixtures - Google Patents

Description

This disclosure relates to renovation fittings and construction methods for renovation fittings.

Conventionally, a covering method has been used to renovate building openings during renovations, etc., by installing new fixtures in the openings. In renovated fixtures renovated using this covering method, a new frame is attached to the inner periphery of the existing frame attached to the building opening (see, for example, Patent Document 1).

In the renovation fixture described in Patent Document 1, a new frame is attached directly to the inner periphery of the existing frame attached to the opening in the building.

Japanese Patent Application Laid-Open No. 2019-196667

The renovation fixture described in Patent Document 1 has a new frame attached directly to the inner periphery of the existing frame, so the attachment condition of the new frame is easily affected by distortion of the existing frame, and there is room for improvement in workability.

Furthermore, in recent years, there has been a demand for windows to have the function of forcibly exhausting indoor air to the outside in order to ventilate the room.

The purpose of this disclosure is to provide a renovation fitting that can improve the ease of constructing a new frame without being affected by the condition of the existing frame, and that has the function of forcibly exhausting indoor air to the outside, as well as a construction method for the renovation fitting.

The renovation fixture disclosed herein is a renovation fixture that is attached to an existing frame installed in an opening in a building, and comprises a new frame that is assembled around all four sides, an exhaust function unit that is attached to the outer periphery of the new frame and forcibly exhausts indoor air to the outside, and an attachment frame that is attached to the inner periphery of the existing frame while being assembled around all four sides and attached to the outer periphery of the new frame including the exhaust function unit.

The disclosed method for installing renovation fittings is a method for installing renovation fittings that are attached to an existing frame installed in an opening in a building. An exhaust function unit that forcibly exhausts indoor air to the outside is attached to the outer periphery of a new frame that is configured on all four sides. An attachment frame is attached to the outer periphery of the new frame that includes the exhaust function unit, also on all four sides. After the attachment frame is attached, the new frame and the exhaust function unit are attached to the inner periphery of the existing frame.

This is a front view of a renovated sliding window type fixture seen from the outside of the room. FIG. 2 is a vertical cross-sectional view of the remodeled fixture shown in FIG. 1 . FIG. 2 is a cross-sectional view of the remodeled fixture shown in FIG. 1 . This is an enlarged view showing the attachment locations of the existing upper frame, attachment upper frame, and new upper frame on the upper side of Figure 2. 3 is an enlarged view showing the attachment portion of the new lower frame and the exhaust function portion on the lower side of FIG. 2. FIG. 3 is an enlarged view showing the attachment portions of the lower exhaust function portion, the attachment lower frame, and the existing frame shown in FIG. 2. FIG. FIG. 4 is an enlarged view showing the attachment locations of the existing vertical frame, the attachment vertical frame, and the new vertical frame on the right side of FIG. 3 . FIG. 4 is an enlarged view showing the attachment locations of the existing vertical frame, the attachment vertical frame, and the new vertical frame on the left side of FIG. 3 . This is an oblique view from the outside of the room showing the new frame with the attachment frame attached and the exhaust function unit attached to the existing frame. This is an oblique view from the inside of the room showing the new frame with the attachment frame attached and the exhaust function unit attached to the existing frame. This is an oblique view showing the state in which attachment frames are attached to the four outer periphery of a newly installed frame to which an exhaust function unit is attached, as viewed from the outside of the room. This is an oblique view showing the new frame with the attachment frame attached and the state in which the exhaust function unit is attached to the existing frame, as seen from the outside of the room.

Embodiments of the present disclosure will be described in detail below with reference to the drawings. The remodeling fixture 1 according to this embodiment is a remodeling fixture 1 for renovation, which is formed by installing new components while leaving the existing frame 7 fixed to the building 100 attached to the building 100.

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 referred to as the outdoor side X1, and the indoor side of the remodeled fitting 1 is referred to as the indoor side X2. The horizontal direction of the remodeled fitting 1 is referred to as the "left-right direction."

The renovated fixture 1 in this embodiment is a renovated sliding window type sash installed in an opening in the building 100. The renovated fixture 1 is attached to an existing frame 7 installed in the opening in the building 100.

As shown in Figures 1 to 12, the renovated fixture 1 comprises a new frame 2, an exhaust function unit 3 attached to the outer periphery of the new frame 2, an attachment frame 4 attached to the inside of the existing frame 7 while attached to the outer periphery of the new frame 2 including the exhaust function unit 3, interior decorative members 51, 52, 53, exterior decorative members 61, 62, 63, shoji screens 10, 10 slidably fitted within the new frame 2, and a screen door 11 fitted to the exterior side X1 of the shoji screens 10, 10. The screen door 11 is omitted from Figure 1.

The existing frame 7 is a window frame that has already been installed in an opening in the building 100. A frame member 101 is arranged around the four sides of the interior of the existing frame 7. The new frame 2 and exhaust function unit 3 are attached to the inside of the existing frame 7, with the attachment frame 4 attached to the outer periphery of the new frame 2 and exhaust function unit 3. The exhaust function unit 3 is positioned between the new frame 2 and the attachment frame 4. The attachment frame 4 is positioned between the existing frame 7 and the new frame 2 and exhaust function unit 3.

As shown in Figures 2 to 4 and 6 to 8, the existing frame 7 is installed inside the opening of the building 100 and is formed in the shape of a rectangular frame. The existing frame 7 comprises an existing upper frame 71, an existing lower frame 72, and existing left and right vertical frames 73.

As shown in Figures 2 and 4, the existing upper frame 71 is attached to the upper side of the opening in the building 100 and has guide rails 711, 712 for the existing shoji screens that stand upright downward, and a guide rail 713 for the existing screen door. The indoor side X2 portion of the existing upper frame 71 is fixed to the building 100 (framework).

The existing lower frame 72 is attached to the lower side of the opening in the building 100 and has guide rails 721, 722 for the existing shoji screen, and a guide rail 723 for the existing screen door, which are erected facing upward. The indoor side X2 portion of the existing lower frame 72 is fixed to the building 100 (framework).

As shown in Figure 3, the existing vertical frames 73 are attached to the left and right vertical sides of the outdoor side X1 of the opening in the building 100. The indoor side X2 of the existing vertical frames 73 is fixed to the building 100 (frame).

The new frame 2 is constructed by assembling all four sides, and is attached to the inner periphery of the existing frame 7 via the attachment frame 4, together with the exhaust function section 3 (described below). The new frame 2 comprises 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 all four sides, it is fixed with screws where the new upper frame 21, new lower frame 22, and left and right new vertical frames 23 interlock. The attachment frame 4 comprises an upper attachment frame 41, a lower attachment frame 42, and left and right vertical attachment frames 43.

When the new frame 2, with the attachment frame 4 attached to its outer periphery, is attached to the existing frame 7, the new upper frame 21 is attached to the inner periphery (underside) of the existing upper frame 71, with the attachment upper frame 41 sandwiched between them, as shown in Figures 2 and 4. The new upper frame 21 is formed, for example, from a metal or resin material, and has guide rails 211, 212 on the upper sides of the shoji screens 10, 10, and a guide rail 213 on the upper side of the screen door 11, each of which faces downward. A resin angle member 214 is provided on the indoor side X2 of the new upper frame 21. An upper indoor-side decorative member 51 is provided to cover the space between the resin angle member 214 and the inner periphery of the upper frame member 101.

As shown in Figure 4, the new upper frame 21 is divided into two parts, an outdoor frame section 21A and an indoor frame section 21B, in the prospective direction, with the outdoor frame section 21A and the indoor frame section 21B connected together by a resin bridge material 215. The resin bridge material 215 blocks heat transfer between the indoor and outdoor directions in the new upper frame 21. As a result, the new upper frame 21 has excellent thermal insulation properties.

When the new frame 2, with the attachment frame 4 attached to its outer periphery, is attached to the existing frame 7, the new lower frame 22 is attached to the inner periphery of the existing lower frame 72, with the exhaust function unit 3 and attachment lower frame 42 sandwiched between them, as shown in Figures 2 and 5. The new lower frame 22 is formed, for example, from a metal or resin material, and has guide rails 221, 222 on the lower sides of the shoji screens 10, 10, and a guide rail 223 on the lower side of the screen door 11, which are erected facing upward. A resin angle member 224 is provided on the indoor side X2 of the new lower frame 22. The lower indoor side decorative member 52 is provided to cover the space between the resin angle member 224 and the inner periphery of the lower frame member 101.

As shown in Figure 5, the new lower frame 22 is divided into two parts, an outdoor frame section 22A and an indoor frame section 22B, in the prospective direction, and the outdoor frame section 22A and the indoor frame section 22B are connected together by a resin bridge material 225. The resin bridge material 225 blocks heat transfer between the indoor and outdoor directions in the new lower frame 22. Therefore, the new lower frame 22 has excellent thermal insulation properties.

As shown in Figures 3, 7, and 8, when the new frame 2 with the attachment frame 4 attached to its outer periphery and the exhaust function unit 3 are attached to the existing frame 7, the new vertical frame 23 is attached to the inner periphery of the existing vertical frame 73, with the attachment vertical frame 43 sandwiched between them. The new vertical frame 23 is formed, for example, from a metal material or a resin material. A resin angle member 233 is provided on the indoor side X2 of the new vertical frame 23. The left and right indoor side decorative members 53 are arranged to cover the space between the resin angle member 233 and the inner periphery of the vertical frame member 101.

The new frame 2 (new upper frame 21, new lower frame 22, and left and right new vertical frames 23) together with the exhaust function unit 3 are attached to the inner periphery of the existing frame 7 (existing upper frame 71, existing lower frame 72, and left and right existing vertical frames 73), with the attachment frames 4 (upper attachment frame 41, lower attachment frame 42, and left and right vertical attachment frames 43) arranged around the outer periphery of the new frame 2 and exhaust function unit 3.

The exhaust function unit 3 is disposed between the new lower frame 22 and the attachment lower frame 42, and has the function of forcibly exhausting air from the indoor side X2 to the outdoor side X1. As shown in Figures 1 and 2, the exhaust function unit 3 has a housing 31, an exhaust fan 32 housed inside the housing 31, and a decorative cover 33 disposed on the outdoor side X1 of the housing 31.

The housing 31 extends the entire length of the new lower frame 22, which is the left-right direction (horizontal direction) of the new frame 2, and has approximately the same length as the new lower frame 22. The housing 31 has an outdoor partition plate 311 that separates the outdoor side X1 of the exhaust fan 32, an indoor partition plate 312 that separates the indoor side X2 of the exhaust fan 32, and side partition plates 313 that separate both longitudinal ends (see Figures 11 and 12). The outdoor partition plate 311, indoor partition plate 312, and side partition plate 313 are formed, for example, from a metal material or a resin material.

The outdoor partition plate 311 is positioned to cover the outdoor side X1 of the exhaust fan 32 over the entire length of the new lower frame 22 in the extension direction. The outdoor partition plate 311 has a front panel 311a extending vertically on the outdoor side X1 of the exhaust fan 32, an inclined panel 311b extending from near the lower end of the front panel 311a and sloping downward toward the outdoor side X1, and a hanging panel 311c extending vertically downward from the outdoor end of the inclined panel 311b. The front panel 311a is formed with a blowout section 314 having an opening through which air exhausted from the exhaust fan 32 is blown out toward the outdoor side X1. The blowout section 314 is provided with an openable lid member (not shown). The lid member is configured to close the blowout section 314 to prevent outside air from flowing into the indoor side X2 when the exhaust fan 32 is not operating, and to open the blowout section 314 when the exhaust fan 32 is operating.

The indoor partition plate 312 has an upper panel 312a that covers the upper side of the indoor side X2 of the exhaust fan 32, a back panel 312b that covers the upper side of the indoor side X2 of the exhaust fan 32, a lower panel 312c that covers the lower side of the indoor side X2 of the exhaust fan 32, and a hanging panel 312d that extends from the end of the lower panel 312c on the outdoor side X1 toward the frame member 101 below. The lower panel 312c has an intake section 315 for drawing air from the indoor side X2 into the housing 31. The intake section 315 is provided with an opening or a mesh member, etc.

The exhaust fan 32 is positioned between the outdoor partition plate 311 and the indoor partition plate 312 of the housing 31. The exhaust fan 32 has rotors (not shown) that rotate to forcibly blow air out toward the outdoor side X1, and is driven by a motor (not shown). The exhaust fan 32 draws in air from the indoor side X2 through the suction section 315 by rotating the rotors, and blows it out toward the outdoor side X1 of the housing 31 from the blowing section 314 formed on the outdoor partition plate 311, as shown by the arrow in Figure 2.

The decorative cover 33 has a front cover 331 arranged approximately parallel to the front plate 311a of the outdoor partition plate 311, and mounting plates 332, 333 that extend from the upper and lower ends of the front cover 331 toward the indoor side X2 and engage with and are attached to the front plate 311a. The front cover 331 is arranged so that it is approximately flush with the visible surfaces of the new frame 2 and the existing frame 7 on the outdoor side X1. The decorative cover 33 is arranged with a gap between it and the upper surface of the inclined plate 311b of the outdoor partition plate 311. The mounting plate 333 on the lower side of the decorative cover 33 has openings or mesh members that allow air to pass through. The front cover 331 and mounting plates 332, 333 are made of, for example, aluminum.

An exhaust space S1 is formed between the front cover 331 of the decorative cover 33 and the front plate 311a of the housing 31, directing air blown out from the outlet 314 downward. An exhaust space S2 is formed between the decorative cover 33 and the inclined plate 311b, continuing from the exhaust space S1 via the mounting plate 333. The exhaust space S2 directs and exhausts air flowing in from the exhaust space S1 via the mounting plate 333 toward the outside X1.

As shown in Figure 1, the upper frame 10a of the shoji screen 10, which is located on the indoor side X2 of the two shoji screens 10, is provided with numerous slits 10b, which are a type of air supply section that can supply outside air to the indoor side X2. As shown by the arrows in Figure 2, the slits 10b form an air supply path that supplies outside air from the outdoor side X1 of the shoji screen 10 to the indoor side X2. When the exhaust fan 32 is driven to forcibly exhaust air on the indoor side X2, fresh outside air can flow into the indoor side X2 through the slits 10b. This eliminates the need to install an air supply section anywhere in the room other than the renovated fitting 1, allowing for efficient ventilation. The upper frame 10a is provided with an opening/closing mechanism (not shown) for opening and closing the slits 10b.

The housing 31 is fixed to the underside of the new lower frame 22 with multiple fixing screws 30a and 30b. This attaches the exhaust function unit 3 to the outer periphery of the new lower frame 22 of the four-sided new frame 2.

As shown in Figures 11 and 12, the attachment frame 4 is attached around the four periphery of the new frame 2, including the exhaust function unit 3, before the new frame 2 and exhaust function unit 3 are attached to the inner periphery of the existing frame 7. In other words, with the exhaust function unit 3 attached to the new lower frame 22, the attachment frame 4 is attached around the four periphery of the outer periphery of the new upper frame 21, new vertical frame 23, and exhaust function unit 3. With the new frame 2 and exhaust function unit 3 assembled and attached around the four periphery of the integrated assembly, the attachment frame 4 is attached to the inner periphery of the existing frame 7 together with the new frame 2 and exhaust function unit 3.

As shown in Figures 11 and 12, the attachment frame 4 is composed of an upper attachment frame 41, a lower attachment frame 42, and a pair of vertical attachment frames 43 arranged around all four sides to form a rectangle. The upper attachment frame 41, lower attachment frame 42, and left and right vertical attachment frames 43 are each made of, for example, aluminum.

The upper attachment frame 41 is positioned at the top of the attachment frame 4 and extends in the left-right direction (horizontal direction) of the new frame 2. The lower attachment frame 42 is positioned at the bottom of the attachment frame 4 and extends in the left-right direction (horizontal direction) of the new frame 2. The vertical attachment frame 43 is positioned at the left-right end of the attachment frame 4 and extends in the up-down direction of the new frame 2.

As shown in Figures 9 and 12, the attachment frame 4 has a so-called vertically overlapping structure in which the longitudinal ends of the vertical attachment frame 43 are positioned outside the longitudinal ends of the upper attachment frame 41 and the lower attachment frame 42 so as to cover the longitudinal ends of the upper attachment frame 41 and the lower attachment frame 42.

When the attachment frame 4 is attached to the inner periphery of the existing frame 7, it is positioned between the new frame 2 and the exhaust function unit 3 and the existing frame 7. As shown in FIG. 4, the upper attachment frame 41 is attached to the top surface of the new upper frame 21, hooked onto the new upper frame 21 from the outside X1, and then secured to the new upper frame 21 by fixing screws 41a that extend upward from the new upper frame 21 to the upper attachment frame 41. As shown in FIG. 6, the lower attachment frame 42 is attached to the underside of the exhaust function unit 3, hooked onto the outdoor partition plate 311 of the housing 31 from the inside X2, and then secured to the outdoor partition plate 311 by fixing screws 42a that extend horizontally from the inside X2 to the outside X1 from the lower attachment frame 42 to the outdoor partition plate 311 of the exhaust function unit 3. As shown in Figures 7 and 8, the attachment vertical frame 43 is attached to the outer surface of the new vertical frame 23, hooked onto the new vertical frame 23 from the room side X2, and then fixed to the new vertical frame 23 with fixing screws 43a that pass horizontally from the new vertical frame 23 to the attachment vertical frame 43.

As shown in FIG. 12, the attachment frame 4 is secured by screws 44, which are fastening members, with the upper attachment frame 41, lower attachment frame 42, and pair of vertical attachment frames 43 attached to the outer periphery of the integrated new frame 2 and exhaust function unit 3. Specifically, the upper attachment frame 41, lower attachment frame 42, and pair of vertical attachment frames 43 are secured in a four-way assembled state by screws 44 that pass through the vertical attachment frames 43 toward the upper attachment frame 41 and lower attachment frame 42 at the assembly points of two adjacent frames. The upper end of each of the pair of vertical attachment frames 43 is secured to both longitudinal ends of the upper attachment frame 41 by screws 44. The lower end of each of the pair of vertical attachment frames 43 is secured to both longitudinal ends of the lower attachment frame 42 by screws 44.

As shown in Figure 4, the attachment upper frame 41 has a main frame portion 411 that extends to cover the upper surface of the new upper frame 21 in the indoor/outdoor direction, a front wall portion 412 that extends upward from the end of the main frame portion 411 on the outdoor side X1, and a rear wall portion 413 that extends downward from near the end of the main frame portion 411 on the indoor side X2. The front wall portion 412 is positioned along the outdoor side X1 surface of the screen door guide rail 713 so as to cover and conceal the screen door guide rail 713 of the existing upper frame 71.

A roughly L-shaped existing upper frame storage space 41S is formed on the upper surface of the attachment upper frame 41 by the main frame portion 411 and the front wall portion 412. The attachment upper frame 41 is inserted into the underside of the existing upper frame 71 from the outside side X1. This allows the existing upper frame 71 to be easily stored in the existing upper frame storage space 41S. The attachment upper frame 41, with the existing upper frame 71 stored in the existing upper frame storage space 41S, is fixed to the upper frame member 101 by fixing screws 41b at the end of the main frame portion 411 on the inside side X2. The inside decorative member 51 conceals the fixing portion fixed by the fixing screws 41b from the inside side X2. The outside decorative member 61 is attached to the front wall portion 412 of the attachment upper frame 41 from the outside side X1 so as to cover it.

As shown in Figure 6, the attachment lower frame 42 has a main body frame portion 421 that extends to cover the underside of the exhaust function portion 3 in the indoor/outdoor direction, a front wall portion 422 that extends downward from the end of the main body frame portion 421 on the outdoor side X1, and a rear wall portion 423 that extends upward from near the end of the main body frame portion 421 on the indoor side X2. The front wall portion 422 extends close to the guide rail 723 for the screen door on the existing lower frame 72. The fixing screws 42a that secure the attachment lower frame 42 to the new lower frame 22 penetrate the rear wall portion 423 of the attachment lower frame 42 from the indoor side X2.

A roughly L-shaped existing lower frame storage space 42S is formed on the underside of the attachment lower frame 42 by the main frame portion 421 and the front wall portion 422. The attachment lower frame 42 is inserted into the upper side of the existing lower frame 72 from the outside side X1. This allows the existing lower frame 72 to be easily stored within the existing lower frame storage space 42S. The attachment lower frame 42, with the existing lower frame 72 stored within the existing lower frame storage space 42S, is fixed to the lower frame member 101 at the end of the main frame portion 421 on the inside side X2 with fixing screws 42b. A leg plate member 424 extending toward the top surface of the existing lower frame 72 is fixed to the inside side X2 surface of the front wall portion 422 with screws 42c. The outdoor side X1 end of the main body frame 421 is supported on the upper surface of the existing lower frame 72 by placing the leg plate member 424 on the upper surface of the existing lower frame 72. The hanging plate 312d of the housing 31 of the exhaust function unit 3 conceals the fixing points using the fixing screws 42a and 42b. The outdoor side decorative member 62 is attached to the front wall portion 412 from the outdoor side X1 so as to cover the front wall portion 422 of the attachment lower frame 42.

As shown in Figures 7 and 8, the attachment vertical frame 43 has a main body frame portion 431 that extends to cover the outer surface of the new vertical frame 23 in the indoor/outdoor direction, a front wall portion 432 that extends outward in the view direction from the end of the main body frame portion 431 on the outdoor side X1, and a rear wall portion 433 that extends inward in the view direction from near the end of the main body frame portion 431 on the indoor side X2. The front wall portion 432 extends to cover and conceal the existing lower frame 72 from the outdoor side X1.

A roughly L-shaped existing vertical frame storage space 43S is formed on the outer surface of the vertical attachment frame 43 by the main frame portion 431 and the front wall portion 432. The vertical attachment frame 43 is inserted into the inner surface of the existing vertical frame 73 from the outside X1. This allows the existing vertical frame 73 to be easily stored in the existing vertical frame storage space 43S. The vertical attachment frame 43, with the existing vertical frame 73 stored in the existing vertical frame storage space 43S, is fixed to the vertical frame member 101 with fixing screws 43b at the end of the main frame portion 431 on the inside X2 side. The inside decorative member 53 conceals the fixing points provided by the fixing screws 43b. The outside decorative member 63 is attached to the front wall portion 432 of the vertical attachment frame 43 from the outside X1 so as to cover it.

Next, the construction method for the renovated fitting 1 will be described. First, as shown in Figure 11, the exhaust function unit 3 is attached to the underside of the new lower frame 22 of the new frame 2, which is constructed on all four sides. Then, the attachment frame 4 is attached to the outer periphery of the new frame 2, including the exhaust function unit 3, so as to align all four sides. Specifically, the upper attachment frame 41 and the lower attachment frame 42 are attached to the upper surface of the new upper frame 21 and the underside of the exhaust function unit 3, respectively. Then, the vertical attachment frames 43 are attached to the outer surface of the new vertical frame 23. The vertical attachment frames 43 are fixed at both longitudinal ends to the upper attachment frame 41 and the lower attachment frame 42 with screws 44, respectively. In this way, the attachment frame 4 is attached to the outer periphery of the new frame 2, including the exhaust function unit 3, aligning all four sides.

After attaching the attachment frame 4 to the outer periphery of the new frame 2, including the exhaust function unit 3, as shown in Figure 12, the integrated new frame 2, exhaust function unit 3, and attachment frame 4 are inserted into the inner periphery of the existing frame 7 from the outside side X1. As a result, the existing upper frame 71 is accommodated in the existing upper frame accommodation space 41S of the upper attachment frame 41. The existing lower frame 72 is accommodated in the existing lower frame accommodation space 42S of the lower attachment frame 42. The existing vertical frame 73 is accommodated in the existing vertical frame accommodation space 43S of the vertical attachment frame 43. After insertion, the attachment frame 4 is fixed to the frame member 101 from the inside side X2 using fixing screws 41b, 42b, and 43b. This attaches the new frame 2, including the exhaust function unit 3, to the inner periphery of the existing frame 7.

The remodeling fixture 1 according to this embodiment provides the following advantages. Specifically, the remodeling fixture 1 is attached to an existing frame 7 installed at an opening in a building 100 and includes a new frame 2 configured with a four-way perimeter; an exhaust function unit 3 attached to the outer periphery of the new frame 2 and forcibly exhausting indoor air to the outside; and an attachment frame 4 attached to the inner periphery of the existing frame 7 while being attached to the outer periphery of the new frame 2 including the exhaust function unit 3. This allows the new frame 2 and exhaust function unit 3 to be easily attached without being affected by the condition of the existing frame 7, thereby improving the workability of the new frame 2. Because the new frame 2 and exhaust function unit 3 can be attached to the existing frame 7 as a single unit, a remodeling fixture 1 with the function of forcibly exhausting indoor air to the outside can be easily constructed.

In this embodiment, the attachment frame 4 is configured by assembling an upper attachment frame 41, a lower attachment frame 42, and a pair of vertical attachment frames 43 around the four periphery to form a rectangle, and the upper attachment frame 41, the lower attachment frame 42, and the pair of vertical attachment frames 43 are fixed to each other with screws 44 at the assembly points of any two of the frames. This allows the attachment frame 4 to be firmly fixed to each other with screws 44 at the assembly points of the upper attachment frame 41, the lower attachment frame 42, and the pair of vertical attachment frames 43. Therefore, it is possible to provide an attachment frame 4 that is firmly assembled around the four periphery of the new frame 2 including the exhaust function unit 3.

The construction method for the renovated fitting 1 according to this embodiment is a construction method for renovating fitting 1 to be attached to an existing frame 7 installed at an opening in a building 100. An exhaust function unit 3, which forcibly exhausts indoor air to the outside, is attached to the outer periphery of a new frame 2, which is configured to be assembled on all four sides. An attachment frame 4 is attached to the outer periphery of the new frame 2 including the exhaust function unit 3, also assembled on all four sides. After the attachment frame 4 is attached, the new frame 2 and exhaust function unit 3 are attached to the inner periphery of the existing frame 7. This allows the new frame 2 and exhaust function unit 3 to be easily attached without being affected by the condition of the existing frame 7, thereby facilitating the construction of the new frame 2 including the exhaust function unit 3. Because the new frame 2 and exhaust function unit 3 can be attached to the existing frame 7 as a single unit, a renovated fitting 1 with the function of forcibly exhausting indoor air to the outside can be easily constructed.

In this embodiment, the attachment frame 4 is configured by assembling an upper attachment frame 41, a lower attachment frame 42, and a pair of vertical attachment frames 43 in a rectangular shape and arranged around the four outer periphery of the new frame 2 to which the exhaust function unit 3 is attached, and the upper attachment frame 41, the lower attachment frame 42, and the pair of vertical attachment frames 43 are fixed to each other with screws 44 at the assembly points of any two frames. This allows the attachment frame 4 to be firmly fixed to the assembly points of the upper attachment frame 41, the lower attachment frame 42, and the pair of vertical attachment frames 43 with screws 44. Therefore, the attachment frame 4 can be firmly and stably attached to the four outer periphery of the new frame 2, including the exhaust function unit 3.

The above describes one preferred embodiment of the present disclosure, but the present disclosure is not limited to the above-described embodiment and can be modified as appropriate. For example, the attachment frame 4 may be configured in a so-called horizontally extending structure in which the longitudinal ends of the upper attachment frame 41 and the lower attachment frame 42 are positioned so that they cover the upper and lower longitudinal ends of the vertical attachment frame 43.

The exhaust function unit 3 may be installed between the new upper frame 21 and the attachment upper frame 41, or between the new vertical frame 23 and the attachment vertical frame 43.

In the above embodiment, the remodeled fitting 1 is described as being applied to a double sliding window remodeled sash, but this is not limited to this. The remodeled fitting may also be applied to, for example, an open-close remodeled fitting in which the door rotates around a rotation axis to open and close, or a vertical sliding fitting. The remodeled fitting may also be applied to, for example, a fixed-type remodeled fitting in which the fitting is fixed to the frame without opening or closing.

1. Renovated fixture, 2. New frame, 3. Exhaust function unit, 4. Attachment frame, 41. Upper attachment frame, 42. Lower attachment frame, 43. Vertical attachment frame, 44. Screw (fastening member), 7. Existing frame, 100. Building

Claims (4)

A renovation fixture that is attached to an existing frame installed in an opening in a building,
A newly constructed framework consisting of four perimeters,
An exhaust function part attached to the outer periphery of the new frame and forcibly exhausting indoor air to the outside of the room;
an attachment frame that is arranged on the inner periphery side of the existing frame in a state where the attachment frame is attached to the outer periphery side of the new frame including the exhaust function part in a four-way assembly;
Equipped with
The attachment frame is not fixed to the existing frame, has an extension end that extends further inside the room than the existing frame, and is screw-fixed to the building skeleton at the extension end,
The new frame and the exhaust function part are attached to the inner periphery of the existing frame via the attachment frame, which is a renovation fixture. The attachment frame is configured by assembling an upper attachment frame, a lower attachment frame, and a pair of vertical attachment frames arranged on all four sides to form a rectangle,
The remodeling fixture according to claim 1, wherein the upper attachment frame, the lower attachment frame and the pair of vertical attachment frames are fixed to each other by fastening members at the assembly portions of any two frames. A construction method for renovating fittings that are attached to existing frames installed in openings in buildings,
The new frame is made up of four perimeters and an exhaust function is attached to the perimeter to forcibly exhaust the indoor air to the outside.
An attachment frame is attached to the outer periphery of the new frame including the exhaust function portion so as to assemble around the entire periphery,
After the attachment frame is attached, the new frame and the exhaust function unit are disposed on the inner circumferential side of the existing frame,
The attachment frame has an extension end portion that extends toward the interior of the vehicle beyond the existing frame when the attachment frame is disposed on the inner periphery of the existing frame,
A method of installing renovation fittings in which the attachment frame, which is placed on the inner side of the existing frame, is not fixed to the existing frame, but is screwed to the building structure at the extended end, thereby attaching the new frame and the exhaust function unit to the inner side of the existing frame via the attachment frame . The attachment frame is configured by assembling an upper attachment frame, a lower attachment frame, and a pair of vertical attachment frames in a rectangular shape, and arranged around the four outer peripheries of the new frame to which the exhaust function unit is attached,
4. A method for constructing a remodeling fixture as described in claim 3, wherein the upper attachment frame, the lower attachment frame and the pair of vertical attachment frames are fixed to each other with fastening members at the assembly portions of any two frames.