JP7709874B2 - Renovated fittings - Google Patents

Description

This disclosure relates to refurbished building materials.

Conventionally, a method for renovating openings in buildings, such as by remodeling, has been to use a cover construction method in which new fittings are installed in the openings. In fittings renovated using this cover construction method, a new frame is attached to the inner periphery of an existing frame attached to the opening of a building (see, for example, Patent Document 1).

The remodeling fixture described in Patent Document 1 comprises a new frame attached to the inner periphery of the existing frame via an attachment frame, and a cover material attached to at least one of the attachment frame and the new frame. The cover material is fixed to at least one of the attachment frame and the new frame with screws.

JP 2019-152000 A

When fixing the upper cover material to at least one of the attachment frame and the new frame with screws in a renovated building, the cover material must be held down by hand while the screws are fastened, making the work of attaching the cover material difficult. There is a demand for the cover material to be easily attached.

The purpose of this disclosure is to provide retrofit fittings that allow for easy installation of cover materials.

The present disclosure relates to a remodeling fixture that is attached to an existing frame installed in an opening in a building, the remodeling fixture comprising a new frame assembled on all four sides, an attachment frame disposed between the new frame and the existing frame, and a cover material attached to at least one or both of the attachment frame and the new frame, and at least one or both of the attachment frame and the new frame are provided with a temporary fixing portion that can be fitted into the cover material for temporary fixing.

FIG. 2 is a front view of the renovated fixture according to the embodiment, 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 oblique view from the outside of the room showing a new frame with an attachment frame attached to an existing frame. FIG. 4 is a perspective view showing a state in which the exterior decorative cover is attached. This is an oblique view from the inside of the room showing a new frame with an attachment frame attached to an existing frame. 1 is a perspective view showing the state in which an interior decorative member and a trim material are installed. FIG. This is an oblique view showing the state in which a new frame with an attachment frame attached is attached to an existing frame. This is an oblique view showing the state of attaching an attachment frame to a new frame. FIG. 3 is an enlarged view of FIG. 2. FIG. 4 is an enlarged view of FIG. A cross-sectional view showing the state in which the attachment upper frame is attached to the newly installed upper frame. A cross-sectional view showing the state in which the attachment lower frame is attached to the newly installed lower frame. 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. 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. This is an oblique view showing the state in which the four periphery of the new frame are assembled and the upper attachment frame and lower attachment frame are engaged, and then the vertical attachment frame on one side is engaged and fixed with screws. This is an oblique view showing the state in which the four periphery of the new frame are assembled and the upper attachment frame and lower attachment frame are engaged, and then the vertical attachment frame on the other side is engaged and fixed with screws. This is an oblique view showing the horizontal gutter structure part of the upper frame of the attachment. A diagram showing the state in which the upper attachment frame is temporarily fixed to the existing frame with screws. This shows the state in which a spacer member is attached to the part where the upper attachment frame is temporarily fixed to the existing frame with screws. An oblique view showing the state in which the interior decorative component is attached to the new frame. A cross-sectional view showing the state in which the interior decorative component is attached to the newly installed frame. FIG. 2 is a perspective view showing a state in which a trim material is attached. A vertical cross-sectional view showing the lower side of a remodeled fixture according to another embodiment.

The following describes in detail an embodiment of the present disclosure 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 members while leaving the existing frame 6 fixed to the building 100 attached to the building 100.

In this specification, "visible 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."

As shown in Figures 1 to 7, the renovated fixture 1 according to this embodiment is a renovated sash of a sliding window type that is fitted into an opening in a building 100. The renovated fixture 1 is attached to an existing frame 6 provided in the opening in the building 100.

As shown in Figures 1 to 7, the renovated fixture 1 comprises a new frame 2, an attachment frame 3 attached to the outer periphery of the new frame 2 and attached to the inside of the existing frame 6, interior decorative members 41, 42, 43 (covering material), exterior decorative covers 51, 52, 53 (covering material), and shoji screens 10, 10 that are slidably fitted into the new frame 2. The existing frame 6 is provided at an opening in the building 100. The new frame 2 is attached to the inside of the existing frame 6 with the attachment frame 3 attached to the outer periphery. The attachment frame 3 is positioned between the existing frame 6 and the new frame 2.

First, the configuration of the existing frame 6 will be described. 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.

As shown in FIG. 2, the existing upper frame 61 is attached to the upper side of the opening of the building 100, and has guide rails 611, 612 for the existing shoji screen that stand upright downward. The inside X2 portion of the existing upper frame 61 is fixed to the building 100 (structure).

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. The inside X2 part of the existing lower frame 62 is fixed to the building 100 (structure).

As shown in FIG. 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 of the existing vertical frames 63 is fixed to the building 100 (structure).

As shown in Figures 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 on all four sides and is attached to the inner periphery of the existing frame 6 via the attachment frame 3.

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 on all four sides, it is fixed with screws at the parts where the new upper frame 21, the new lower frame 22, and the left and right new vertical frames 23 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.

When the new frame 2, with the attachment frame 3 attached to its outer periphery, is attached to the existing frame 6, the new upper frame 21 is attached to the inner periphery of the existing upper frame 61, with the attachment upper frame 31 sandwiched between them, as shown in FIG. 10. The new upper frame 21 has guide rails 211, 212 on the upper side of the shoji screens 10, 10 that are erected facing downward.

When the new frame 2, with the attachment frame 3 attached to its outer periphery, is attached to the existing frame 6, the new lower frame 22 is attached to the inner periphery of the existing lower frame 62, with the attachment lower frame 32 sandwiched between them, as shown in FIG. 10. The new lower frame 22 has guide rails 221, 222 on the lower side of the shoji screens 10, 10 that are erected facing upward.

When 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 of the existing vertical frame 63, with the attachment vertical frame 33 sandwiched between them, as shown in FIG. 11.

The new upper frame 21, the new lower frame 22, and the new vertical frame 23 are formed, for example, from a metal material or a resin material. As shown in Figures 10 and 11, resin angle members 213, 223, and 233 are provided on the interior side X2 of the new upper frame 21, the new lower frame 22, and the new vertical frame 23, respectively. The resin angle members 213, 223, and 233 are each positioned with a gap between them and the frame member 101.

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.

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 with the attachment frame 3 attached to the outer periphery of the new frame 2 in a four-way configuration.

As shown in Figures 8 and 9, the attachment frame 3 is configured by an upper attachment frame 31, a lower attachment frame 32, and a pair of vertical attachment frames 33 arranged on all four sides to form a rectangle. The upper attachment frame 31, the lower attachment frame 32, and the left and right vertical attachment frames 33 are each made of, for example, an aluminum material.

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

As shown in FIG. 8, the attachment frame 3 has a so-called vertically overlapping 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.

When the attachment frame 3 is attached to the inner circumference of the existing frame 6, it is disposed between the new frame 2 and the existing frame 6. The upper attachment frame 31 is attached in a state where it is hooked onto the new upper frame 21 as shown in FIG. 12. The lower attachment frame 32 is attached in a state where it is hooked onto the new lower frame 22 as shown in FIG. 13. The vertical attachment frame 33 is attached in a state where it is hooked onto the new vertical frame 23 as shown in FIG. 14 and FIG. 15. Note that the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, vertical attachment frame 33) may be fastened by screws or the like without being hooked onto the new frame 2 (new upper frame 21, new lower frame 22, new vertical frame 23).

As shown in Figures 16 and 17, the attachment frame 3 includes an upper attachment frame 31, a lower attachment frame 32, and a 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 34 (fastening members) at the assembly portions of any two 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 the screws 34, 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 the screws 34.

As shown in FIG. 10, the upper attachment frame 31 has an outdoor side indoor/outdoor extending portion 311, an upper attachment frame hollow portion 312 (hollow portion) on which an outer peripheral side flat surface 312a is formed, an outdoor side vertical extending plate portion 313 (facing direction extending plate portion), an indoor side horizontal extending plate 314 (extending plate), an indoor side downward extending portion 315, an indoor side lower end horizontal protruding piece 316, and an L-shaped hook piece 317.

The outdoor indoor/outdoor extending portion 311 and the attachment upper frame hollow portion 312 are arranged side by side in the indoor/outdoor direction. The outdoor indoor/outdoor extending portion 311 is arranged on the outdoor side X1, and the attachment upper frame hollow portion 312 is arranged on the indoor side X2. The outdoor indoor/outdoor extending portion 311 is formed at a position lower than the top surface of the attachment upper frame hollow portion 312.

The outdoor vertical extension plate 313 is formed in a plate shape extending upward from the outdoor side X1 end of the outdoor side indoor/outdoor extension plate 311. The outdoor vertical extension plate 313 is arranged on the outdoor side X1 and extends in the vertical direction (view direction). A pair of engagement protrusions 313a arranged vertically spaced apart are formed on the lower side of the outdoor side X1 surface of the outdoor vertical extension plate 313. A pair of engagement protrusions 55 of the outdoor side decorative cover 51 engage with and are attached to the pair of engagement protrusions 313a.

As shown in FIG. 18, a gutter structure 310 is formed on the upper part of the attachment upper frame 31. The gutter structure 310 is formed by the upper surface of the outdoor-side indoor-outdoor extension part 311, the outdoor-side X1 surface of the attachment upper frame hollow part 312, and the indoor-side X2 surface of the lower side of the outdoor-side vertical extension plate part 313. The gutter structure 310 is formed on the upper part of the attachment upper frame 31, is formed to be open toward the top, and extends in the left-right direction (horizontal direction). Both ends of the horizontal gutter structure 310 in the longitudinal direction are formed to be open to the outside in the left-right direction. Water that has entered the horizontal gutter structure 310 flows to both ends of the longitudinal direction of the attachment upper frame 31, passes through the longitudinal ends that are open to the outside in the left-right direction, passes through the notch part 337 of the attachment vertical frame 33, and flows into the inside of the attachment vertical frame 33.

As shown in FIG. 10, the hollow portion 312 of the upper attachment frame is formed in a hollow shape of a long and narrow rectangle extending in the indoor and outdoor directions. An outer peripheral side plane 312a is formed on the upper surface of the hollow portion 312 of the upper attachment frame. The outer peripheral side plane 312a is formed on the outer peripheral side of the attachment frame 3 in the upper attachment frame 31. The outer peripheral side plane 312a faces the existing upper frame 61 and is formed in a planar shape extending in the indoor and outdoor directions and in the horizontal direction. The outer peripheral side plane 312a is formed over the entire longitudinal area of the upper attachment frame 31 and faces upward.

The outer peripheral plane 312a 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 with the new frame 2 attached is attached to the inner peripheral side of the existing frame 6. In this embodiment, as shown in FIG. 12, the outer peripheral 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) from the indoor side X2 toward the outdoor side X1 by the space from the upper side of the outer peripheral plane 312a to the space in front of the outdoor side vertical extension plate portion 313 and the space from the space in front of the outdoor side vertical extension plate portion 313 toward the upper side. The L-shaped space S1 is formed on the outer peripheral side of the attachment upper frame 31 along the indoor side X2 surface of the outdoor side vertical extension plate portion 313 and the outer peripheral plane 312a.

As a result, the existing upper frame 61 can be placed within the L-shaped space S1, and 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. 10, the outer peripheral side plane 312a is 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 does not get in the way during installation, in accordance with existing frames 6 of various shapes.

As shown in FIG. 10, the indoor side horizontal extension plate 314 extends horizontally from the indoor side X2 end of the upper end of the attachment upper frame hollow portion 312. The indoor side flat surface 314a on the outer periphery side of the attachment frame 3 of the indoor side horizontal extension plate 314 is formed on the same plane as the outer periphery side flat surface 312a of the attachment upper frame hollow portion 312. The indoor side flat surface 314a is formed in a planar shape over the entire longitudinal area of the attachment upper frame 31.

When the attachment frame 3 is fixed to the building 100 (structure), the indoor horizontal extension plate 314 is inserted through the screw 36. This allows the indoor horizontal extension plate 314 to be fixed to the building 100 (structure) by the screw 36. If a gap is formed between the indoor side flat surface 314a of the indoor horizontal extension plate 314 and the frame member 101, a spacer member 37 is placed. The spacer member 37 is made up of multiple sheets, and the thickness of the sheet for filling the gap is set according to the size of the gap between the indoor side flat surface 314a of the indoor horizontal extension plate 314 and the frame member 101.

The indoor side downward extension 315 extends downward from the lower end of the indoor side X2 end of the attachment upper frame hollow portion 312. The indoor side lower end horizontal protrusion 316 protrudes from the lower end of the indoor side downward extension 315 to the indoor side X2.

The L-shaped hook piece 317 protrudes downward in an L shape from the outdoor side X1 part of the underside of the outdoor side indoor/outdoor direction extending part 311. When attaching the attachment upper frame 31 to the new upper frame 21, the L-shaped hook piece 317 is hooked onto the protruding hook piece 214 of the new upper frame 21 as shown in FIG. 12. Note that the structure for fixing the attachment upper frame 31 to the new upper frame 21 may be a structure for fastening with screws or the like instead of a hooking structure.

As shown in FIG. 10, the attachment lower frame 32 has an indoor/outdoor extending portion 321, an attachment lower frame hollow portion 322 (hollow portion) on which an outer peripheral side flat surface 322a is formed, an outdoor vertical extending plate portion 323 (visible direction extending plate portion), an indoor horizontal extending plate 324 (extending plate), an indoor upward extending portion 325, and an L-shaped hook piece 326.

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

The outdoor vertical extension plate 323 is formed in a plate shape extending downward from the outdoor side X1 end of the attachment lower frame hollow portion 322. The outdoor vertical extension plate 323 is arranged on the outdoor side X1 and extends in the vertical direction (viewing direction). A pair of engagement protrusions 323a arranged vertically spaced apart are formed on the upper side of the outdoor side X1 surface of the outdoor vertical extension plate 323. A pair of engagement protrusions 55 of the outdoor decorative cover 51 engage with and are attached to the pair of engagement protrusions 323a.

The attachment lower frame hollow section 322 is formed in a hollow, elongated rectangular shape extending in the indoor/outdoor direction. An outer peripheral side plane 322a is formed on the lower surface of the attachment lower frame hollow section 322. The outer peripheral side plane 322a is formed on the outer peripheral side of the attachment frame 3 in the attachment lower frame 32. The outer peripheral side plane 322a faces the existing lower frame 62 and is formed in a planar shape extending in the indoor/outdoor direction and the horizontal direction. The outer peripheral side plane 322a is formed over the entire longitudinal area of the attachment lower frame 32 and faces downward.

The outer peripheral plane 322a 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 with the new frame 2 attached is attached to the inner peripheral side of the existing frame 6. In this embodiment, as shown in FIG. 13, the outer peripheral side of the attachment lower frame 32 is formed with an L-shaped space S2 as shown by the imaginary line (two-dot chain line) from the indoor side X2 toward the outdoor side X1, from the space on the lower side of the outer peripheral plane 322a to the space in front of the outdoor side vertical extension plate portion 323, and the space from the space in front of the outdoor side vertical extension plate portion 323 toward the lower side. The L-shaped space S2 is formed on the outer peripheral side of the attachment lower frame 32 along the indoor side X2 surface of the outdoor side vertical extension plate portion 323 and the outer peripheral plane 322a.

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. 10, the outer peripheral side plane 322a 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 accordance with 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.

As shown in FIG. 10, the indoor side horizontal extension plate 324 extends horizontally from the indoor side X2 end of the upper end of the attachment lower frame hollow portion 322. The indoor side flat surface 324a on the outer periphery side of the attachment frame 3 of the indoor side horizontal extension plate 324 is formed on the same plane as the outer periphery side flat surface 322a of the attachment lower frame 32. The indoor side flat surface 324a is formed in a planar shape over the entire longitudinal area of the attachment lower frame 32.

When the attachment frame 3 is fixed to the building 100 (framework), the indoor horizontal extension plate 324 is inserted through the screw 36. As a result, the indoor horizontal extension plate 324 is fixed to the building 100 (framework) by the screw 36. If a gap is formed between the indoor side flat surface 324a of the indoor side horizontal extension plate 324 and the frame member 101, a spacer member is placed. The spacer member is composed of multiple sheets, and the thickness of the sheet for filling the gap is set according to the size of the gap between the indoor side flat surface 324a of the indoor side horizontal extension plate 324 and the frame member 101. In this embodiment, since no gap is formed between the indoor side flat surface 324a of the indoor side horizontal extension plate 324 and the frame member 101, a spacer member is not placed.

The indoor side upward extension portion 325 extends upward from the upper end of the indoor side X2 end portion of the attachment lower frame hollow portion 322.

The L-shaped hook piece 326 protrudes upward in an L-shape from the outdoor side X1 portion of the upper surface of the indoor/outdoor extending portion 321. When attaching the attachment lower frame 32 to the new lower frame 22, the L-shaped hook piece 326 is hooked onto the L-shaped hook piece 224 of the new lower frame 22 as shown in FIG. 13. Note that the structure for fixing the attachment lower frame 32 to the new lower frame 22 may be a structure for fastening with screws or the like, rather than a hooking structure.

The vertical attachment frame 33 is arranged in a so-called vertically-hung structure, with its longitudinal ends positioned outside the longitudinal ends of the upper attachment frame 31 and the lower attachment frame 32. As shown in FIG. 11, the vertical attachment frame 33 has a hollow portion 331 (hollow portion) of the vertical attachment frame on which an outer peripheral side flat surface 331a is formed, an exterior left-right direction extending plate portion 332 (finding direction extending plate portion), an interior side indoor direction extending portion 333 (extending plate), an interior side extending portion 334, an interior side end protruding piece 335, and a protruding hook piece 336.

The vertical attachment frame hollow section 331 is formed in a hollow, elongated rectangular shape extending in the indoor/outdoor direction. An outer peripheral plane 331a is formed on the outer left/right surface of the vertical attachment frame hollow section 331. The outer peripheral plane 331a is formed on the outer peripheral side of the attachment frame 3 in the vertical attachment frame 33. The outer peripheral 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 plane 331a is formed over the entire longitudinal area of the vertical attachment frame 33 and faces outward in the left/right direction.

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 with the new frame 2 attached is attached to the inner peripheral side of the existing frame 6. In this embodiment, as shown in Figures 14 and 15, 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 outer peripheral plane 331a in the left-right direction and the space inside the room of the outdoor left-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-right extending plate portion 332 and the outer peripheral plane 331a.

This allows the existing vertical frame 63 to fit within the L-shaped space S3, making it easy to 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. 11, the outer peripheral side plane 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 installation, in accordance with existing frames 6 of various shapes.

As shown in FIG. 11, the indoor side indoor direction extension portion 333 extends from the indoor side X2 end, which is the outer left-right direction end of the attachment vertical frame hollow portion 331, to the indoor side X2. The indoor side flat surface 333a on the outer periphery side of the attachment frame 3 in the indoor side indoor direction extension portion 333 is formed on the same plane as the outer periphery side flat surface 331a of the attachment vertical frame hollow portion 331. The indoor side flat surface 333a is formed in a planar shape over the entire longitudinal area of the attachment vertical frame 33.

When the attachment frame 3 is fixed to the building 100 (structure), the indoor side indoor direction extension portion 333 is inserted through the screw 36. As a result, the indoor side indoor direction extension portion 333 is fixed to the building 100 (structure) by the screw 36. If a gap is formed between the indoor side flat surface 333a of the indoor side indoor direction extension portion 333 and the frame member 101, a spacer member 37 is placed. The spacer member 37 is composed of multiple sheets, and the thickness of the sheet for filling the gap is set according to the size of the gap between the indoor side flat surface 333a of the indoor side indoor direction extension portion 333 and the frame member 101.

A pair of engagement protrusions 331b are formed on the exterior X1 surface of the attachment vertical frame hollow portion 331, spaced apart to the left and right. A pair of engagement protrusions 55 of the exterior decorative cover 53 engage with the pair of engagement protrusions 331b to be attached.

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

The indoor side extension portion 334 extends inward in the left-right direction from the indoor side X2 end of the attachment vertical frame hollow portion 331. The indoor side end protrusion piece 335 protrudes from the inner left-right end of the indoor side extension portion 334 to the indoor side X2.

The protruding hook piece 336 protrudes from the inner end of the attachment vertical frame hollow portion 331 in the left-right direction on the outdoor side X1 toward the outdoor side X1. When attaching the attachment vertical frame 33 to the new vertical frame 23, the protruding hook piece 336 is hooked onto the L-shaped hook piece 234 of the new vertical frame 23, as shown in Figures 14 and 15. 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, rather than a hooking structure.

As shown in FIG. 18, in the vertical attachment frame 33, a notch 337 is formed at the upper end of the plate portion 331c on the left-right inner side of the vertical attachment frame hollow portion 331. The notch 337 is cut into a U-shape that opens upward. The notch 337 is formed at the upper end of the vertical attachment frame 33 where the upper attachment frame 31 and the vertical attachment frame 33 abut, and connects the horizontal gutter structure portion 310 of the upper attachment frame 31 with the vertical attachment frame hollow portion 331 inside the vertical attachment frame 33.

A gasket member 35 (water-stopping member) is placed between the attachment upper frame 31 and the attachment vertical frame 33 where the attachment upper frame 31 and the attachment vertical frame 33 butt against each other. The gasket member 35 is placed between the longitudinal end of the attachment upper frame 31 and the longitudinal end of the attachment vertical frame 33.

In the packing member 35, a cutout portion 351 having the same shape as the cutout portion 337 of the vertical attachment frame 33 is formed in the portion where the cutout portion 337 of the vertical attachment frame 33 is formed. The packing member 35 ensures watertight performance between the upper attachment frame 31 and the vertical attachment frame 33.

By configuring the upper attachment frame 31 and the vertical attachment frame 33 in this manner, water that has entered the horizontal gutter structure 310 of the upper attachment frame 31 is guided by the horizontal gutter structure 310 to both longitudinal ends of the upper attachment frame 31. The water guided to both longitudinal ends of the upper attachment frame 31 is then channeled through the cutouts 337 of the vertical attachment frame 33 into the hollow portion 331 of the vertical attachment frame 33, and is guided downward. As a result, water can flow along the horizontal gutter structure 310 formed in the upper attachment frame 31, improving drainage performance.

Here, as shown in FIG. 10, the existing lower frame 62 is disposed below the vertical attachment frame 33. The existing lower frame 62 receives water that has flowed into the interior of the vertical attachment frame 33 at the lower side of the vertical attachment frame 33 and discharges it to the outside. Specifically, water guided downward from the vertical attachment frame 33 is received by the existing lower frame 62, guided to the lower portion of the step of the existing lower frame 62, and discharged to the outside via a drainage section (not shown) formed on the longitudinal end side of the lower portion of the existing lower frame 62.

As shown in Figures 10 and 11, the interior decorative members 41, 42, and 43 are attached to the resin angle members 213, 223, and 233 of the new frame 2, respectively. The boundaries between the interior decorative members 41, 42, and 43 and the inner peripheral surface of the frame member 101 are shielded by a trim member 45 with an L-shaped cross section that is fixed to the frame member 101.

The interior decorative members 41, 42, and 43 have a cover body 46 and a cover mounting portion 47. The interior decorative members 41, 42, and 43 have cover mounting portions 47 that are attached to the resin angle members 213, 223, and 233 of the newly installed frame 2, respectively. The cover mounting portions 47 that are attached to the newly installed upper frame 21 and the newly installed vertical frame 23 have mounting engagement plates 471.

As shown in FIG. 10, the cover mounting portion 47 attached to the new upper frame 21 is sandwiched between the projection extension piece 213a (temporary fixing portion, one side holding portion) of the resin angle member 213 and the interior lower end horizontal protruding piece 316 (temporary fixing portion, other side holding portion) of the attachment upper frame 31, engaged and held, and temporarily fixed, and is fixed by the screw 48. The projection extension piece 213a of the resin angle member 213 and the interior lower end horizontal protruding piece 316 of the attachment upper frame 31 form a temporary fixing portion that can be engaged with the interior decorative member 41 and temporarily fixed.

The projection direction extension piece 213a of the resin angle member 213 and the room side lower end horizontal protruding piece 316 of the attachment upper frame 31 are arranged opposite each other so that the mounting engagement plate 471 of the cover mounting part 47 can be fitted and held. The projection direction extension piece 213a of the resin angle member 213 and the room side lower end horizontal protruding piece 316 of the attachment upper frame 31 are sandwiched and fitted with the mounting engagement plate 471 of the cover mounting part 47 to be held.

The cover mounting portion 47 attached to the new lower frame 22 is fixed to the lower portion of the projection-direction extension piece 213a of the resin angle member 213 by a screw 48, as shown in FIG. 10.

As shown in FIG. 11, the cover mounting portion 47 attached to the new vertical frame 23 is sandwiched between the projection-direction extending piece 233a (temporary fixing portion, one-side holding portion) of the resin angle member 233 and the interior-side end protruding piece 335 (temporary fixing portion, one-side holding portion) of the attachment vertical frame 33, engaged and held, and temporarily fixed, and is fixed by the screw 48. The projection-direction extending piece 233a of the resin angle member 233 and the interior-side end protruding piece 335 of the attachment vertical frame 33 form a temporary fixing portion that can be fitted into the interior-side decorative member 41 and temporarily fixed.

The projection direction extension piece 233a of the resin angle member 233 and the room side end protruding piece 335 of the vertical attachment frame 33 are arranged opposite each other so that the mounting engagement plate 471 of the cover mounting part 47 can be fitted and held. The projection direction extension piece 233a of the resin angle member 233 and the room side end protruding piece 335 of the vertical attachment frame 33 are sandwiched and fitted with the mounting engagement plate 471 of the cover mounting part 47 to be held.

The mounting engagement plate 471 of the cover mounting part 47 attached to the new upper frame 21 can be temporarily fixed between the projection direction extension piece 213a of the resin angle member 213 and the room side lower end horizontal protruding piece 316 of the attachment upper frame 31. The mounting engagement plate 471 is formed to a length that allows it to be positioned and temporarily fixed between the projection direction extension piece 213a of the resin angle member 213 and the room side lower end horizontal protruding piece 316 of the attachment upper frame 31. An engagement protrusion 471a is formed on one end of the mounting engagement plate 471. The engagement protrusion 471a protrudes toward the room side lower end horizontal protruding piece 316 of the attachment upper frame 31.

As a result, in the cover mounting part 47 attached to the newly installed upper frame 21, when the mounting engagement plate 471 is positioned between the projection 213a of the resin angle member 213 and the lower horizontal protruding piece 316 on the indoor side of the attachment upper frame 31, the engagement protrusion 471a is engaged, and the cover mounting part 47 is fitted, so that when the indoor side decorative member 41 is attached, the indoor side decorative member 41 can be temporarily fixed without having to release the indoor side decorative member 41. After being temporarily fixed, the indoor side decorative member 41 is fixed from the lower side with the screw 48.

The mounting engagement plate 471 of the cover mounting portion 47 attached to the new lower frame 22 can be temporarily fixed between the projection direction extension piece 233a of the resin angle member 233 and the room inside side end protruding piece 335 of the attachment vertical frame 33. The mounting engagement plate 471 is formed to a length that allows it to be positioned and temporarily fixed between the projection direction extension piece 233a of the resin angle member 233 and the room inside side end protruding piece 335 of the attachment vertical frame 33. An engagement protrusion 471a is formed on one end of the mounting engagement plate 471. The engagement protrusion 471a protrudes toward the room inside side end protruding piece 335 of the attachment vertical frame 33.

As a result, in the cover mounting part 47 attached to the new lower frame 22, similar to the attachment upper frame 31, when the mounting engagement plate 471 is positioned between the projection 233a of the resin angle member 233 and the interior side end projection 335 of the attachment vertical frame 33, the engagement protrusion 471a is engaged, and the cover mounting part 47 is fitted, so that when the interior decorative member 41 is attached, the interior decorative member 43 can be released and temporarily fixed. After being temporarily fixed, the interior decorative member 42 is fixed with the screw 48.

The exterior decorative covers 51, 52, and 53 are attached to the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33, respectively, as shown in Figures 10 and 11. The exterior decorative covers 51, 52, and 53 have a front-facing extension plate 54 with a surface facing the exterior side X1, and a pair of engagement protrusions 55 formed on the back side of the front-facing extension plate 54.

The forward extending plates 54 of the exterior decorative covers 51, 52, and 53 are formed as plates extending along the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33, respectively.

The exterior decorative covers 51, 52, 53 are attached to the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33 by engaging a pair of engagement protrusions 55 with a pair of engagement protrusions 313a, 323a, 333b of the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33, respectively.

The renovated fixture 1 also has an airtight structure 70, as shown in Figures 10 and 11. The airtight structure 70 is configured to connect the existing frame 6 side and the new frame 2 side with airtight tape (existing frame side airtight tape 71, connecting airtight tape 72) to the attachment frame 3 attached to the new frame 2. The airtight structure 70 is positioned to connect the existing frame 6 and the attachment frame 3 attached to the new frame 2 in order to improve the airtight performance between the existing frame 6 and the new frame 2.

As shown in Figures 10 and 11, the airtight structure 70 has an existing frame side airtight tape 71 (existing frame side airtight adhesive sheet material) at least a portion of which is attached to the existing frame 6, and a connecting airtight tape 72 (connecting airtight adhesive sheet material) that connects the existing frame side airtight tape 71 and the attachment frame 3. For example, an airtight waterproof tape with an acrylic adhesive on one side can be used as the existing frame side airtight tape 71 and the connecting airtight tape 72.

The existing frame side airtight tape 71 is attached across the existing frame 6 (existing upper frame 61, existing lower frame 62, existing vertical frame 63) and the building 100 (structure). By attaching the existing frame side airtight tape 71 across the existing frame 6 (existing upper frame 61, existing lower frame 62, existing vertical frame 63) and the building 100 (structure), unevenness and rough surfaces of the frame member 101 are smoothed out, forming a base for attaching the connecting airtight tape 72.

The connecting airtight tape 72 is bent in a stepped shape, with one end attached to the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, vertical attachment frame 33) and the other end overlapping and attached to the existing frame side airtight tape 71.

The existing frame side airtight tape 71 is formed to extend over the entire longitudinal area of each of the existing upper frame 61, the existing lower frame 62, and the existing vertical frame 63. The connecting airtight tape 72 is formed to extend over the entire longitudinal area of each of the attachment upper frame 31, the attachment lower frame 32, and the attachment vertical frame 33.

As described above, the airtight structure 70 is configured to connect the existing frame 6 side and the new frame 2 side with airtight tape (existing frame side airtight tape 71, connecting airtight tape 72). The existing frame side airtight tape 71 attached to the existing frame 6 and the building 100 (structure) overlaps with the connecting airtight tape 72 attached to the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, vertical attachment frame 33), and an airtight line is secured in the area where part of the existing frame side airtight tape 71 and part of the connecting airtight tape 72 overlap, ensuring airtight performance.

The procedure for constructing the remodeled fitting 1 will now be explained. When constructing the remodeled fitting 1, first, the attachment frame 3 is attached to the outer periphery of the new frame 2 that has been installed on all four sides.

First, as shown in FIG. 9, in order to attach the attachment frame to the new frame 2, the upper attachment frame 31, the lower attachment frame 32, and the vertical attachment frame 33 are hooked and positioned on the new upper frame 21, the new lower frame 22, and the new vertical frames 23 on the left and right, respectively.

Specifically, as shown in FIG. 9, an upper attachment frame 31, a lower attachment frame 32, and a pair of vertical attachment frames 33 are assembled to the outer periphery of the new frame 2, which is made up of four parts assembled together (attachment framework installation process).

The order in which the upper attachment frame 31, the lower attachment frame 32, and the pair of vertical attachment frames 33 are assembled is as follows: first, the upper attachment frame 31 is attached to the new upper frame 21, and the lower attachment frame 32 is attached to the new lower frame 22. After that, with the upper attachment frame 31 attached to the new upper frame 21 and the lower attachment frame 32 attached to the new lower frame 22, the pair of vertical attachment frames 33 are attached to the new vertical frames 23.

In detail, to attach the attachment upper frame 31 to the new upper frame 21, as shown in FIG. 12, the L-shaped hook piece 317 of the attachment upper frame 31 is hooked onto the protruding hook piece 214 of the new upper frame 21 in the portion closer to the outside X1 in the indoor/outdoor direction, and the attachment upper frame 31 is positioned and attached to the outer surface of the new upper frame 21 on the inside X2 of the portion where the L-shaped hook piece 317 of the attachment upper frame 31 is hooked onto the hook piece 214 of the new upper frame 21. In this way, the attachment upper frame 31 is attached in a state where it is hooked onto the new upper frame 21.

To attach the attachment lower frame 32 to the new lower frame 22, as shown in FIG. 13, the L-shaped hook piece 224 of the attachment lower frame 32 is hooked onto the L-shaped hook piece 326 of the new lower frame 22 in the portion closer to the outside X1 in the indoor/outdoor direction, and the attachment lower frame 32 is positioned and attached to the outer surface of the new lower frame 22 on the inside X2 of the room than the portion where the L-shaped hook piece 224 of the attachment lower frame 32 is hooked onto the L-shaped hook piece 326 of the new lower frame 22. This allows the attachment lower frame 32 to be attached in a state where it is hooked onto the new lower frame 22.

After that, as shown in Figs. 16 and 17, the upper attachment frame 31 is attached to the new upper frame 21 and the lower attachment frame 32 is attached to the new lower frame 22, and the vertical attachment frame 33 is attached to the new vertical frame 23 as shown in Figs. 14 and 15. In this case, as shown in Figs. 14 and 15, the protruding hook piece 336 of the vertical attachment frame 33 is hooked to the L-shaped hook piece 234 of the new vertical frame 23 in the part closer to the outside X1 in the indoor/outdoor direction, and the vertical attachment frame 33 is placed and attached to the outer surface of the new vertical frame 23 on the inside X2 of the part where the protruding hook piece 336 of the vertical attachment frame 33 is hooked to the L-shaped hook piece 234 of the new vertical frame 23. As a result, the vertical attachment frame 33 is attached in a state of being hooked to the new vertical frame 23.

Next, as shown in Figures 16 and 17, the longitudinal ends of the upper attachment frame 31 and the vertical attachment frame 33 are fixed together with screws 34, and the longitudinal ends of the lower attachment frame 32 and the vertical attachment frame 33 are fixed together with screws 34 (attachment frame fastening process).

Here, as shown in Figures 16 and 17, the upper and lower ends of the vertical attachment frames 33, which have a so-called vertically-stretched structure, are fixed to the end faces of the longitudinal ends of the upper attachment frame 31 from the outside of the left and right sides with screws 34. As a result, for each of the left and right vertical attachment frames 33, the upper ends of the vertical attachment frames 33 are fixed to the end faces of the longitudinal ends of the upper attachment frame 31 with screws 34, and the lower ends of the vertical attachment frames 33 are fixed to the end faces of the longitudinal ends of the lower attachment frame 32 with screws 34. In this way, the four-way attachment frame 3 is attached to the four perimeters of the outer perimeter of the new frame 2.

As described above, the attachment frame 3 is attached by being hooked onto the new frame 2, and the longitudinal ends of the upper attachment frame 31 and the vertical attachment frame 33 are fixed together with screws 34, and the longitudinal ends of the lower attachment frame 32 and the vertical attachment frame 33 are fixed together with screws 34, so that the attachment frame 3 can be firmly attached to the outside of the new frame 2. In addition, because the attachment frame 3 is attached to the outside of the four perimeters of the new frame 2 in a four-way assembly, water-stopping performance can be improved.

In this embodiment, the longitudinal ends of the upper attachment frame 31 and the vertical attachment frame 33 and the longitudinal ends of the lower attachment frame 32 and the vertical attachment frame 33 are fixed together with screws 34, but this is not limited to the above. If the upper attachment frame 31, the lower attachment frame 32, or the vertical attachment frame 33 are large in size, the screws may be fixed at a position inside the longitudinal ends of the upper attachment frame 31 and the vertical attachment frame 33, rather than at the longitudinal ends.

Next, as shown in FIG. 10, the new upper frame 21 and the attachment upper frame 31 are fixed with a plurality of screws 38 arranged along the longitudinal direction. The new lower frame 22 and the attachment lower frame 32 are fixed with a plurality of screws 38 arranged along the longitudinal direction. As shown in FIG. 11, the new vertical frame 23 and the attachment vertical frame 33 are fixed with a plurality of screws 38 arranged along the longitudinal direction. This allows the attachment frame 3 to be firmly fixed to the new frame 2. The number of screws 38 arranged along the longitudinal direction varies depending on the size of the new frame 2 and the attachment frame 3. For example, if the size of the new frame 2 and the attachment frame 3 is large, it becomes necessary to increase the number of screws from the viewpoint of fixing strength.

Next, the new frame 2 with the attachment frame 3 attached is inserted into the inside of the existing frame 6 from the indoor side X2 of the existing frame 6. Here, if the new frame 2 with the attachment frame 3 attached is inserted into the inside of the existing frame 6 while standing vertically from the indoor side X2 of the existing frame 6, the outdoor side vertical extension plate portion 313, the outdoor side vertical extension plate portion 323, and the indoor side indoor extension portion 333 of the attachment frame 3 will hit the existing frame 6. Therefore, the new frame 2 with the attachment frame 3 attached is inserted into the inside of the existing frame 6 while tilting it diagonally from the indoor side X2 of the existing frame 6, and is temporarily moved to the outdoor side X1 of the existing frame 6, and then the new frame 2 with the attachment frame 3 attached is pulled from the outdoor side X1 of the existing frame 6 to the existing frame 6. This positions the outdoor vertical extension plate portion 313, the outdoor vertical extension plate portion 323, and the indoor side extension portion 333 of the attachment frame 3 close to the outdoor side X1 surface of the existing frame 6, and attaches the attachment frame 3 to the existing frame 6 and fixes it in this state.

Next, as shown in FIG. 19, the indoor side horizontal extension plate 314, the indoor side horizontal extension plate 324, and the indoor side indoor extension portion 333 of the attachment frame 3 are temporarily fixed to the building 100 (structure) using screws 36.

Then, as shown in FIG. 20, multiple spacer members 37 are arranged between the indoor side horizontal extension plate 314, the indoor side horizontal extension plate 324, the indoor side indoor direction extension portion 333, and the frame member 101.

As shown in FIG. 21, the spacer members 37 are arranged at multiple locations spaced apart in the longitudinal direction of the attachment upper frame 31 and the attachment vertical frame 33. The spacer members 37 are made up of multiple sheets, and the number of sheets is set according to the size of the gap between the indoor horizontal extension plate 314, the indoor horizontal extension plate 324, and the indoor interior extension portion 333 and the frame member 101.

As shown in FIG. 20, the spacer member 37 has a U-shaped groove 371, and is inserted so that the U-shaped groove is aligned with the shaft of the screw 36. When attaching the attachment frame 3 to the existing frame 6, the spacer member 37 is arranged along the interior side flat surfaces 314a, 324a, and 333a, which are formed on the same plane as the outer peripheral side flat surfaces 312a, 322a, and 331a, as shown in FIG. 10 and FIG. 11. This allows the spacer member 37 to be stably arranged between the interior side flat surfaces 314a, 324a, and 333a and the frame member 101. In this state, the screw 36 is fixed in place. An example of the spacer member 37 is a thin plate-like member made of a resin material or the like.

As shown in Figures 10 and 11, the renovated fixture 1 of this embodiment has an airtight structure 70 that is configured to connect the existing frame 6 side and the new frame 2 side with airtight tape (existing frame side airtight tape 71, connecting airtight tape 72). The airtight structure 70 has two airtight tapes (existing frame side airtight tape 71, connecting airtight tape 72), and by connecting the existing frame 6 and the attachment frame 3 attached to the new frame 2 with two airtight tapes (existing frame side airtight tape 71, connecting airtight tape 72), the airtight performance can be improved.

Specifically, in the airtight structure 70, the existing frame side airtight tape 71 is attached so as to straddle the existing frame 6 (existing upper frame 61, existing lower frame 62, existing vertical frame 63) and the building 100 (structure), and the connecting airtight tape 72 is attached so as to straddle the existing frame side airtight tape 71, the attachment frame 3 (attachment upper frame 31, attachment lower frame 32, attachment vertical frame 33), and the spacer member 37.

The existing frame side airtight tape 71 ensures airtightness and watertightness between the existing vertical frame 63 and the building 100 (structure) and prevents moisture from being transmitted to the building 100 (structure). The connected airtight tape 72 ensures airtightness and watertightness between the attachment frame 3 (attachment upper frame 31, attachment lower frame 32, attachment vertical frame 33), the spacer member 37, and the building 100 (structure). The existing frame side airtight tape 71 attached to the existing frame 6 and the building 100 (structure) overlaps with the connected airtight tape 72 attached to the attachment frame 3 (attachment upper frame 31, attachment lower frame 32, attachment vertical frame 33), improving airtightness and watertightness.

Next, as shown in FIG. 7, the interior side decorative member 41 is attached to the interior side X2 surface of the attachment frame 3 with the length of the tip side of the cover body 46 of the interior side decorative member 41 adjusted.

As shown in Figures 10 and 22, in the indoor side decorative member 41 to be attached to the newly installed upper frame 21, as shown in Figures 10 and 11, the mounting engagement plate 471 of the cover mounting portion 47 of the indoor side decorative member 41 is positioned between the projection direction extension piece 213a of the resin angle member 213 and the indoor side lower end horizontal protruding piece 316 of the attachment upper frame 31, thereby engaging the engagement protrusion 471a. This allows the mounting engagement plate 471 of the cover mounting portion 47 to be fitted and held in place, temporarily fixing the indoor side decorative member 41.

In this temporarily fixed state, the worker can release his/her hands from the indoor side decorative member 41 and temporarily hold the indoor side decorative member 41 between the forward extension piece 213a of the resin angle member 213 and the indoor side lower end horizontal protruding piece 316 of the attachment upper frame 31 to temporarily fix it. In this state, the indoor side decorative member 41 is fixed by the screw 48 by moving the screw 48 from the lower side to the upper side. This allows the worker to release his/her hands from the indoor side decorative member 41, further improving the workability of installing the indoor side decorative member 41.

As shown in FIG. 10, the interior decorative member 41 to be attached to the newly installed lower frame 22 is fixed by moving the screw 48 from the upper side to the lower side with the cover mounting portion 47 of the interior decorative member 41 positioned below the projection-direction extension piece 223a of the resin angle member 223.

As shown in FIG. 11, in the indoor side decorative member 41 to be attached to the newly installed vertical frame 23, the mounting engagement plate 471 of the cover mounting portion 47 of the indoor side decorative member 41 is positioned between the projection direction extension piece 233a of the resin angle member 233 and the indoor side end protruding piece 335 of the attachment vertical frame 33, thereby engaging the engagement protrusion 471a. This allows the mounting engagement plate 471 of the cover mounting portion 47 to be fitted and held in place, temporarily fixing the indoor side decorative member 43.

In this provisionally fixed state, the worker can release his/her hands from the interior decorative member 43, and temporarily hold and provisionally fix the interior decorative member 43 between the forward extension piece 233a of the resin angle member 233 and the interior side end protruding piece 335 of the attachment vertical frame 33. In this state, the interior decorative member 43 is fixed with the screw 48 by moving the screw 48 from the inside to the outside in the left-right direction. This allows the worker to release his/her hands from the interior decorative member 41, making the installation work easier.

Next, as shown in FIG. 5, exterior decorative covers 51, 52, 53 with adjusted tip lengths are attached to the exterior side X1 surface of the attachment frame 3. This allows the exterior decorative covers 51, 52, 53 to cover the unevenness of the attachment frame 3, exposing the flat surface of the exterior side X1 of the exterior decorative covers 51, 52, 53 to the exterior side X1, improving the design. In addition, the exterior decorative covers 51, 52, 53 can be stably attached to the attachment frame 3 assembled all around.

According to this embodiment, the following effects are achieved. The remodeling fixture 1 of this embodiment is attached to the existing frame 6 provided at the opening of the building 100, and is equipped with a new frame 2 that is assembled around the four sides, an attachment frame 3 that is arranged between the new frame 2 and the existing frame 6, and an interior decorative member 41 that is attached to at least one or both of the attachment frame 3 and the new frame 2, and at least one or both of the attachment frame 3 and the new frame 2 are equipped with a temporary fixing portion (projection direction extension piece 213a, interior lower end horizontal protruding piece 316) that can be temporarily fixed by fitting into the interior decorative member 41. As a result, the mounting engagement plate 471 of the cover mounting portion 47 of the interior decorative member 41 is positioned between the projection direction extension piece 213a of the resin angle member 213 and the interior lower end horizontal protruding piece 316 of the attachment upper frame 31, thereby engaging the engagement protrusion 471a. This allows the cover mounting portion 47 of the interior decorative member 41 to be fitted and held in place, making it easy to temporarily fix the interior decorative member 41.

In this embodiment, the interior decorative member 41 has a cover body 46 and a cover mounting portion 47, and the temporary fixing portion has a projection direction extension piece 213a and an interior lower end horizontal protruding piece 316 that are arranged opposite to each other so that the cover mounting portion 47 can be fitted and held, and the cover mounting portion 47 is sandwiched and fitted between the projection direction extension piece 213a and the interior lower end horizontal protruding piece 316. This allows the interior decorative member 41 to be fitted and held in the temporary fixing portion (projection direction extension piece 213a, interior lower end horizontal protruding piece 316) with a simple configuration.

In addition, in this embodiment, the cover mounting portion 47 has an engagement protrusion 471a that protrudes toward the projection extending piece 213a or the interior lower end horizontal protruding piece 316. As a result, by providing the cover mounting portion 47 that protrudes toward the protruding engagement protrusion 471a, the interior decorative member 41 can be easily fitted into the temporary fixing portion (projection extending piece 213a, interior lower end horizontal protruding piece 316) and temporarily fixed.

In addition, in this embodiment, the indoor side decorative member 41 is an upper frame cover material that is attached to at least one or both of the attachment upper frame 31 of the attachment frame 3 and the new upper frame 21 of the new frame 2. As a result, by fitting the indoor side decorative member 41 into the temporary fixing portion (the projection direction extension piece 213a, the indoor side lower end horizontal protruding piece 316) and temporarily fixing it, it is possible to release the indoor side decorative member 41 and fix it with the screw 48. This further improves the workability of installing the indoor side decorative member 41.

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

For example, as shown in the modified form in FIG. 24, the optional member 11 may be attached to the indoor side X2 of the new lower frame 22A or the attachment lower frame 32A. By attaching the optional member 11 to the indoor side X2 of the new lower frame 22A or the attachment lower frame 32A, various members can be attached to the optional member 11. As shown in the modified form in FIG. 24, for example, when the remodeling fixture of this embodiment is applied to a bathroom remodeling fixture, a base material 12 for installing a picture frame for the bathroom, etc., can be placed on the upper part of the optional member 11.

Also, for example, the width of the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, vertical attachment frame 33) in the front direction may be made larger than the width in the front direction of the above embodiment. For example, when constructing a unit bath by applying the remodeled fittings of this embodiment to the opening of a conventional bathroom entrance where tiles are installed, the size of the opening of the unit bath may be made smaller than the opening of the conventional bathroom in order to ensure the strength of the wall of the unit bath. In such a case, by using the attachment frame 3 (upper attachment frame 31, lower attachment frame 32, vertical attachment frame 33) with a width in the front direction larger than the width in the front direction of the above embodiment, a remodeled fitting with a smaller opening size of the unit bath can be provided.

In the above embodiment, the application of the renovated fitting 1 to a renovated sash of a sliding window type has been described, but the present invention is not limited to this. The renovated fitting may be applied, for example, to an opening and closing type renovated fitting in which the door rotates around a rotation axis to open and close, or to a vertical sliding type renovated fitting. The renovated fitting may also be applied, for example, to a fixed type renovated fitting that is fixedly attached to the frame without opening or closing.

In the above embodiment, airtight tape (existing frame side airtight tape 71, connecting airtight tape 72) is used in the airtight structure 70, but this is not limited. For example, a sheet material (airtight adhesive sheet) with adhesive on the attachment portion may be used in the airtight structure 70.

1 Renovated fittings, 2 New frame, 3 Attachment frame, 6 Existing frame, 41 Interior decorative material (cover material), 46 Cover body, 47 Cover mounting part, 213a Projection direction extension piece (one side holding part, temporary fixing part), 316 Interior lower end horizontal protrusion piece (other side holding part, temporary fixing part), 471a Engagement protrusion

Claims (8)

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 disposed between the new frame and the existing frame;
A cover material that is sandwiched and attached between the attachment frame and the new frame,
Both the attachment frame and the new frame have a temporary fixing portion that can be fitted into the cover material and temporarily fixed thereto ,
The cover material has a cover main body and a cover mounting portion extending toward the new frame and the attachment frame,
the temporary fixing portion has a first holding portion and a second holding portion that are arranged opposite to each other so as to be able to fit and hold the cover mounting portion,
The one-side holding portion is provided on the new frame,
The other-side holding portion is provided on the attachment frame,
The cover mounting portion is sandwiched and fitted between the one-side retaining portion and the other-side retaining portion to hold the cover in place. The one-side retaining portion has a one-side prospective surface facing the outer periphery of the new frame,
The other-side holding portion has an other-side prospective surface facing the inner periphery side of the attachment frame,
The remodeling fixture according to claim 1 , wherein the cover mounting portion is sandwiched and held between the one-side projecting surface of the one-side retaining portion and the other-side projecting surface of the other-side retaining portion. The cover material is attached to the indoor side portion of the attachment frame and the newly installed frame,
The remodeled fixture according to claim 2 , wherein a space between the one-side projected surface of the one-side retaining portion and the other-side projected surface of the other-side retaining portion is open to the interior side. The renovation fixture according to any one of claims 1 to 3, wherein the cover material is placed on the indoor side of the attachment frame and the newly constructed frame. The renovation fixture according to any one of claims 1 to 4, wherein the cover mounting portion is fixed to the one side retaining portion of the newly installed frame. The renovation fixture according to any one of claims 1 to 5, wherein the cover material fitted to the attachment frame and the new frame covers the interior side portions of the attachment frame and the new frame. The remodeling fixture according to any one of claims 1 to 6 , wherein the cover mounting portion has an engagement protrusion that protrudes toward the one-side retaining portion or the other-side retaining portion. The renovation fitting according to any one of claims 1 to 7 , wherein the cover material is an upper frame cover material that is attached to both the attachment upper frame of the attachment frame and the new upper frame of the new frame.