Retrofit door

By attaching a new door frame to the inner periphery of the existing frame and using exterior wall materials, the remodeled door addresses the issue of large visible width, achieving a sleek appearance and improved insulation.

JP2026019558APending Publication Date: 2026-02-05LIXIL CORP
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Patent Information

Application Number
JP2024121216
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

Conventional remodeled doors with an outer frame attached to the exterior of an existing door frame have a large visible and projected width, limiting design improvements.

Method used

A remodeled door design where a new door frame is attached to the inner periphery of the existing door frame, with exterior wall materials covering the exterior facing surface, and incorporating thermal insulation and sealing to minimize the visible width and enhance aesthetics.

Benefits of technology

The new design reduces the visible and projected width of the door frame, providing a sleek appearance while maintaining thermal insulation and watertight performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a remodeled door capable of improving design.SOLUTION: A remodeled door 1 includes a new door frame 3313334 attached to an inner peripheral side of an existing door frame 2212324, and an outer wall material 318338438 arranged to cover a face surface of an outdoor side X1 of the existing door frame 2212324.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, a structure for a remodeled door is known in which an outer frame is attached to the exterior side of an existing door frame to form a remodeled door (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-173303 Summary of the Invention [Problem to be solved by the invention]

[0004] In remodeled doors, such as those in Patent Document 1, in which an outer frame is attached to the outside of an existing door frame, the visible width and projected width of the outer frame are large, which means that the visible width and projected width of the existing door frame are also large, leaving room for improvement in the design of the remodeled door.

[0005] The present disclosure aims to provide a remodeled door that can improve design. [Means for solving the problem]

[0006] The present disclosure relates to a remodeled door comprising a new door frame attached to the inner periphery of an existing door frame, and an exterior wall material arranged to cover the exterior facing surface of the existing door frame. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a front view of the remodeling door of the first embodiment as seen from the outside of the room. [Figure 2] FIG. 2 is a view showing the state in which the exterior wall material has been removed from around the remodeled door of FIG. 1. [Figure 3]FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 4] 2 is a cross-sectional view of the hinged side of the remodeled door of FIG. 1 along line BB. [Figure 5] 2 is a cross-sectional view of the door tip side of the remodeled door of FIG. 1 taken along line AA. [Figure 6] FIG. 10 is a vertical cross-sectional view of the upper portion of the remodeling door of the second embodiment. [Figure 7] FIG. 10 is a cross-sectional view of the hinged side portion of the remodeled door of the second embodiment. [Figure 8] FIG. 10 is a cross-sectional view of the door leading end portion of the remodeling door of the second embodiment. [Figure 9] FIG. 10 is a vertical cross-sectional view of the upper portion of the remodeling door of the third embodiment. [Figure 10] FIG. 10 is a cross-sectional view of the hinged side portion of the remodeled door of the third embodiment. [Figure 11] A cross-sectional view of the door tip side portion of the remodeling door of the third embodiment. [Figure 12] FIG. 10 is a vertical cross-sectional view of the upper portion of the remodeling door of the fourth embodiment. [Figure 13] FIG. 10 is a cross-sectional view of the hinged side portion of the remodeled door of the fourth embodiment. [Figure 14] A cross-sectional view of the door tip side portion of the remodeling door of the fourth embodiment. [Figure 15] FIG. 10 is a vertical cross-sectional view of the upper portion of the remodeling door of the fifth embodiment. [Figure 16] A cross-sectional view of the hinge side portion of the remodeling door of the fifth embodiment. [Figure 17] A cross-sectional view of the door tip side portion of the remodeling door of the fifth embodiment. [Figure 18] FIG. 10 is a vertical cross-sectional view of the upper portion of the remodeling door of the sixth embodiment. [Figure 19] A cross-sectional view of the hinge side portion of the remodeling door of the sixth embodiment. [Figure 20] A cross-sectional view of the door tip side portion of the remodeling door of the sixth embodiment. [Figure 21] FIG. 13 is a vertical cross-sectional view of the upper portion of the remodeling door of the seventh embodiment. [Figure 22]A cross-sectional view of the hinge side portion of the remodeling door of the seventh embodiment. [Figure 23] A cross-sectional view of the door tip side portion of the remodeling door of the seventh embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In this specification, the projection direction is the direction along the indoor / outdoor direction of the remodeled door 1. The projection direction is the direction along the surface direction of the face material of the remodeled door 1, and is a direction perpendicular to the projection direction. In the drawings, the outdoor side of the remodeled door 1 is referred to as the "outdoor side X1," and the indoor side of the remodeled door 1 is referred to as the "indoor side X2." The lateral direction when viewing the remodeled door 1 from the front is referred to as the "left-right direction." The width direction, which is the left-right direction of the door body 4, is referred to as the "width direction," the door edge side of the door body 4 is referred to as the "door edge side," and the hanging side, which is opposite the door edge side of the door body 4, is referred to as the "hanging side."

[0009] As shown in Figures 1 to 5, the remodeling door 1 of the first embodiment is a remodeling door for renovation in which a new door frame 3 is attached to an existing door frame 2 while the existing door frame 2 is attached to an opening 101 (see Figures 3 to 5) in a building skeleton 100. As shown in Figures 3 to 5, adjacent to the remodeling door 1, the building skeleton 100 has an upper structure 11 arranged adjacent to and above the remodeling door 1, a floor structure 12 arranged below the remodeling door 1, and side structures 13 and 14 arranged adjacent to both sides of the remodeling door 1 in the left-right direction (horizontal direction) when viewed from the outside X1.

[0010] As shown in Fig. 1, the remodeled door 1 is a door such as an entrance door, and is fitted into an opening 101 (see Fig. 2) formed in a building skeleton 100. The remodeled door 1 comprises a new door frame 3 and a door body 4. As shown in Figs. 3 to 5, the new door frame 3 is attached to the inner periphery of the existing door frame 2.

[0011] The door body 4 is made of a rectangular plate material and is placed inside the new door frame 3. The door body 4 is attached so as to open and close the opening 101. The door body 4 is hung openably on the outside of the room (the front side in the drawing) via hinges 41. A handle 42 is attached to the leading edge of the door body 4.

[0012] As shown in Figures 3 to 5, the opening 101 in the building skeleton 100 is defined by an upper structure 11, a floor structure 12, and left and right side structures 13, 14. As shown in Figures 4 and 5, the side structures 13, 14 are mainly composed of column members 131, 141 and heat insulating materials 132, 142, with indoor-side frame materials 133, 143 attached to the inner circumferential surfaces of the column members 131, 141, and interior materials 134, 144 attached to the indoor-side X2 surfaces of the column members 131, 141 and the heat insulating materials 132, 142.

[0013] A structural plywood 110 is attached to the outside surface X1 of the building body 100, and on the outer periphery of the existing door frame 2, a plurality of furring strips 120 used to install the existing door frame 2 are attached to the outside surface X1 of the structural plywood 110.

[0014] First, we will explain the configuration of the existing door frame 2. As shown in Figures 3 to 5, the existing door frame 2 is provided inside the opening 101 and is formed in a rectangular frame shape. The existing door frame 2 is framed in a rectangular shape by an existing upper frame 21, an existing lower frame 22, and existing left and right vertical frames 23, 24.

[0015] As shown in Figure 3, the existing upper frame 21 is fixed to the surface of the exterior side X1 on the side of the opening 101 of the structural plywood 110 arranged on the exterior side X1 of the building skeleton 100. The existing upper frame 21 has an existing upper frame main body 211 arranged on the exterior side X1 and having a hollow portion 211a, and an existing upper frame indoor side portion 212 protruding from the lower end of the existing upper frame main body 211 to the indoor side X2.

[0016] The surface extending in the prospective direction on the lower side of the existing upper frame body 211 is configured as the prospective surface of the existing upper frame 21. The existing upper frame room inside portion 212 has an L-shaped portion 212a that is L-shaped in cross section and opens upward, and an airtight material arrangement portion 212b that protrudes downward from the middle of the bottom side of the L-shaped portion 212a in the prospective direction.

[0017] An existing exterior wall material 214 is attached to the outer periphery of the existing upper frame 21 along the surface of the structural plywood 110 on the outside side X1.

[0018] As shown in Figure 3, the existing lower frame 22 is fixed to the floor structure 12. The existing lower frame 22 has indoor-side legs 221 rising from the upper surface of the floor structure 12 on the indoor-side side X2 of the floor structure 12, an indoor-side horizontal plate 222 extending from the upper end of the indoor-side leg 221 toward the outdoor side X1, an airtight material mounting portion 223 provided on the upper surface of the indoor-side horizontal plate 222, a step 224 extending a predetermined length downward from the outdoor-side X1 end of the indoor-side horizontal plate 222, an outdoor-side horizontal plate 225 extending from the lower end of the step 224 toward the outdoor side X1, and an outdoor-side leg 226 extending downward from the outdoor-side X1 end of the outdoor horizontal plate 225 with its lower end disposed on the upper surface of the floor structure 12 on the outdoor side X1 of the floor structure 12. The airtight material mounting portion 223 is formed to open upward in a U-shape. An airtight material 223a is attached to the airtight material attachment portion 223.

[0019] 4 and 5, the left and right existing vertical frames 23, 24 are fixed to the surface of the exterior side X1 on the opening 101 side of the structural plywood 110 arranged on the exterior side X1 of the building skeleton 100. The existing vertical frames 23, 24 have existing vertical frame main bodies 231, 241 arranged on the exterior side X1 and having hollow portions 231a, 241a, and existing vertical frame interior portions 232, 242 protruding from the interior side X2 ends of the existing vertical frame main bodies 231, 241 to the interior side X2.

[0020] The inner peripheral surfaces in the left-right direction of the existing vertical frame bodies 231, 241 are configured as the prospective surfaces of the existing vertical frames 23, 24. L-shaped recesses 231b, 241b are formed in the corners of the inner peripheral surfaces in the left-right direction of the existing vertical frame bodies 231, 241 on the outside X1 side.

[0021] The existing vertical frame room inner portions 232, 242 have L-shaped portions 232a, 242a that are L-shaped in cross section and open toward the outer periphery in the left-right direction, and airtight material arrangement portions 232b, 242b that protrude toward the inner periphery in the left-right direction from halfway in the forward direction of the plate portion extending in the forward direction on the inner periphery side of the L-shaped portion.

[0022] 4 and 5, existing backup fittings 233, 243 are arranged on the outer periphery of the existing vertical frames 23, 24, and existing exterior wall materials 234, 244 are attached along the exterior side X1 of the existing backup fittings 233, 243. The existing exterior wall materials 234, 244 are composed of panels having a predetermined thickness formed, for example, from a plurality of ceramic sidings, and are attached via mounting fittings 235, 245 to the exterior side X1 of furring strips 120 that are fixed to the exterior side X1 surface of structural plywood 110 arranged on the exterior side X1 of the building skeleton 100 around the existing door frame 2. The mounting fittings 235, 245 are arranged between the furring strips 120 and the existing exterior wall materials 234, 244, and secure the existing exterior wall materials 234, 244 to the furring strips 120.

[0023] The existing backup fittings 233, 243 are arranged on the back surface of the existing exterior wall materials 234, 244, at the inner circumferential ends in the left-right direction of the existing exterior wall materials 234, 244. The existing backup fittings 233, 243 are made of metal, and are fixed to the exterior side X1 surface of the furring strip 120. The existing backup fittings 233, 243 are arranged to close the interior side X2 portion of the gap between the existing vertical frames 23, 24 and the existing exterior wall materials 234, 244, in order to provide space for filling with sealing material 237, 247 between the existing vertical frames 23, 24 and the existing exterior wall materials 234, 244 when attaching the existing exterior wall materials 234, 244 to the exterior side X1 of the building skeleton 100.

[0024] The existing backup fittings 233, 243 have mounting plates 233a, 243a attached to the surface of the outside side X1 of the furring strip 120, and rising convex portions 233b, 243b that are U-shaped in cross section and open toward the outside side X1 and protrude toward the outside side X1. The mounting plates 233a, 243a and the rising convex portions 233b, 243b are formed by folding back a single steel plate.

[0025] The mounting plates 233a, 243a are formed in the shape of plates that extend in the left-right direction and in the longitudinal direction of the existing vertical frames 23, 24. The mounting plates 233a, 243a are arranged along the exterior side X1 surface of the furring strip 120 and are attached to the exterior side X1 surface of the furring strip 120. The mounting plates 233a, 243a are arranged on the interior side X2 of the existing exterior wall materials 234, 244.

[0026] The rising protrusions 233b, 243b are formed in a U-shaped frame shape that is open on the indoor side X2, and protrude from the end of the mounting plates 233a, 243a on the existing vertical frames 23, 24 side to the outdoor side X1. The rising protrusions 233b, 243b are arranged between the existing exterior wall materials 234, 244 and the existing vertical frames 23, 24 at the end of the existing exterior wall materials 234, 244 on the existing vertical frames 23, 24 side.

[0027] By arranging the rising protrusions 233b, 243b between the existing exterior wall materials 234, 244 and the existing vertical frames 23, 24 at the ends of the existing exterior wall materials 234, 244 on the side of the existing vertical frames 23, 24, a space is formed that opens to the outside X1 between the outside X1 surface of the rising protrusions 233b, 243b, the visible surface extending in the visible direction of the inner end of the existing exterior wall materials 234, 244, and the visible surface on the outer periphery of the existing vertical frames 23, 24.

[0028] In the space formed between the outdoor X1 surface of the rising protrusions 233b, 243b, the prospective surface extending in the prospective direction of the inner circumferential end of the existing exterior wall materials 234, 244 in the left-right direction, and the prospective surface on the outer circumferential side of the existing vertical frames 23, 24, backup materials 236, 246 that abut the outdoor X1 surface of the rising protrusions 233b, 243b are arranged on the indoor X2 side, and the outdoor X1 side of the backup materials 236, 246 is filled with sealing materials 237, 247 that are arranged between the existing vertical frames 23, 24 and the existing exterior wall materials 234, 244 and fill the gap between the existing vertical frames 23, 24 and the existing exterior wall materials 234, 244.

[0029] Next, we will explain the configuration of the new door frame 3. As shown in Figures 2 to 5, the new door frame 3 is formed in a rectangular frame shape and is attached to the inner periphery of the existing door frame 2. The new door frame 3 is attached so as to cover (part of) the inner periphery surface of the existing door frame 2 and partially overlap the existing door frame 2.

[0030] As shown in FIG. 2, multiple new furring strips 151, 153a, 153b, 154a, and 154b are attached to the exterior X1 surface of the existing exterior wall materials 214, 234, and 244 on the outer periphery of the new door frame 3. The new furring strip 151 is formed as a plate with a width in the vertical direction and a thickness in the projection direction on the upper outer periphery of the new door frame 3, and extends horizontally. The new furring strips 153a and 154a are formed as plate-like strips with a width in the horizontal direction and a thickness in the projection direction on the sides of the new door frame 3, and are vertical furring strips extending vertically. The new furring strips 153b and 154b are arranged side by side in the vertical direction outside the new furring strips 153a and 154a. The new furring strips 153b and 154b are formed as plate-like strips with a width in the vertical direction and a thickness in the projection direction, and extend horizontally.

[0031] The new door frame 3 is fixed to the inner periphery of the existing door frame 2. The new door frame 3 is on the inner periphery of the existing door frame 2, and its end on the outside X1 is positioned closer to the outside X1 than the existing door frame 2. The new door frame 3 has a new upper frame 31, a new lower frame 32, new left and right vertical frames 33, 34, and an inner frame 35.

[0032] First, we will explain the new upper frame 31. As shown in Figure 3, the new upper frame 31 is attached to the inner periphery of the existing upper frame 21. The new upper frame 31 is arranged on the inner periphery of the existing upper frame 21 in the left-right direction, and its end on the outdoor side X1 is arranged closer to the outdoor side X1 than the existing upper frame 21. The new upper frame 31 includes an indoor side frame 311, an outdoor side frame 312, and bridge members 313a and 313b.

[0033] The indoor frame 311 is disposed on the indoor side X2 of the new upper frame 31, and has a hollow portion 311a that is rectangular in vertical cross section. The hollow portion 311a extends in the left-right direction of the new upper frame 31. The indoor frame 311 is provided with an airtight material mounting portion 311b that extends inward from its inner peripheral surface in the viewing direction, and an airtight material 311c attached to the outdoor side X1 of the airtight material mounting portion 311b. The airtight material 311c supports the door body 4 to prevent damage and ensures the airtightness of the door body 4.

[0034] The outdoor frame 312 is disposed on the outdoor side X1 of the new upper frame 31, and has a rectangular hollow portion 312a extending in the projection direction in a vertical cross section. The hollow portion 312a extends in the left-right direction in which the new upper frame 31 extends. The outdoor frame 312 is disposed away from the indoor frame 311 on the outdoor side X1, and is connected by bridge members 313a and 313b. The hollow portion 312a of the outdoor frame 312 is set to have a longer length in the projection direction (left-right direction in FIG. 3) than the hollow portion 311a of the indoor frame 311.

[0035] The bridge members 313a and 313b are disposed between the indoor frame 311 and the outdoor frame 312, connecting the indoor frame 311 and the outdoor frame 312. The bridge members 313a and 313b are made of a material with thermal insulation properties. The bridge members 313a and 313b connect the indoor frame 311 and the outdoor frame 312 while they are spaced apart from each other. This provides the new upper frame 31 with an excellent thermal insulation structure (thermal insulation function). The bridge members 313a and 313b are made of a material with low thermal conductivity, such as resin or rubber.

[0036] As shown in Figure 3, a new backup fitting 316 (backup part) is arranged on the outer periphery of the new upper frame 31, and a new exterior wall material 318 (exterior wall material) is attached along the outside surface X1 of the new backup fitting 316.

[0037] The new exterior wall material 318 is made up of a plurality of panels made of, for example, metal siding and having a predetermined thickness. The new exterior wall material 318 is attached to the exterior side X1 of the new furring strip 151 around the periphery of the new door frame 3. The new exterior wall material 318 is formed in the shape of a plate that extends upward from the end on the outermost side X1 on the upper side of the new door frame 3, with a gap above the new door frame 3.

[0038] The new exterior wall material 318 is placed on the outside X1 of the existing upper frame 21 (existing door frame), and is placed so as to cover the visible surface of the outside X1 of the existing upper frame 21. In this embodiment, the new exterior wall material 318 is placed so as to cover the visible surface of the outside X1 of the existing upper frame 21 over the entire area.

[0039] The new backup fitting 316 is placed on the back surface of the new exterior wall material 318, at the lower end of the new exterior wall material 318. The new backup fitting 316 is made of metal, and is fixed to the outside surface X1 of a spacer 317 that is placed on the outside surface X1 of the existing upper frame 21. The spacer 317 is placed in the gap between the existing upper frame 21 and the new exterior wall material 318. The spacer 317 functions as a spacer, and the thickness can be adjusted by adjusting the number of spacers 317, etc., depending on the size of the gap between the existing upper frame 21 and the new exterior wall material 318.

[0040] The new backup fittings 316 are arranged to block the indoor side X2 portion of the gap between the new upper frame 31 and the new exterior wall material 318 in order to provide space for filling sealing material 319 between the new upper frame 31 and the new exterior wall material 318 when attaching the new exterior wall material 318 to the outdoor side X1 of the building structure 100.

[0041] The new backup fitting 316 has a mounting plate 316a (first portion) that is attached to the indoor side X2 surface of the new exterior wall material 318, and a rising protrusion 316b (second portion) that is L-shaped in cross section and protrudes toward the outdoor side X1. The mounting plate 316a and the rising protrusion 316b are formed by folding back a single steel plate.

[0042] The mounting plate 316a is arranged on the back surface (the surface facing the indoor side X2) of the new exterior building material 318, and is formed like a plate that extends vertically and in the longitudinal direction of the new upper frame 31. The mounting plate 316a is arranged at the lower end of the new exterior building material 318 along the surface facing the indoor side X2 of the new exterior building material 318, and is attached to the surface facing the indoor side X2 of the new exterior building material 318. The mounting plate 316a is arranged between the new exterior building material 318 and a spacer 317 that is arranged on the surface facing the outdoor side X1 of the existing upper frame 21.

[0043] The rising protrusion 316b is formed in an L-shaped frame shape that opens upward, and protrudes from the end of the mounting plate 316a on the new upper frame 31 side in the vertical direction toward the outside room X1. The rising protrusion 316b is disposed at the end of the new exterior building material 318 on the new upper frame 31 side, between the end of the new exterior building material 318 on the new upper frame 31 side and the new upper frame 31. As a result, the rising protrusion 316b is provided so as to close the part of the gap between the new upper frame 31 and the new exterior building material 314 on the inside room X2.

[0044] By positioning the rising protrusion 316b between the newly constructed exterior wall material 318 and the newly constructed upper frame 31 at the end of the newly constructed exterior wall material 318 on the newly constructed upper frame 31 side, a space is formed that is open to the outside X1 between the outside X1 surface of the rising protrusion 316b, the projected surface extending in the projected direction of the lower end of the newly constructed exterior wall material 318, and the projected surface of the upper end of the outside X1 of the newly constructed upper frame 31.

[0045] The space formed between the outside-surface X1 of the rising convex portion 316b, the projected surface extending in the projected direction of the lower end of the newly constructed exterior wall material 318, and the projected surface of the upper end of the outside-surface X1 of the newly constructed upper frame 31 is filled with sealant 319 (first sealant) that is placed between the newly constructed upper frame 31 and the new exterior wall material 318 and fills the gap between the newly constructed upper frame 31 and the new exterior wall material 318.

[0046] The new lower frame 32 will be described. As shown in Fig. 3, the new lower frame 32 is attached to the inner periphery of the existing lower frame 22 at a position shifted from the existing lower frame 22 to the outside X1. The new lower frame 32 has an indoor leg 321 that rises from the indoor side X2 part of the upper surface of the outdoor horizontal plate portion 225 of the existing lower frame 22, an indoor side horizontal plate portion 322 that extends from the upper end of the indoor side leg 321 to the outdoor side X1, an airtight material mounting portion 323 that is provided on the upper surface of the indoor side horizontal plate portion 322, a step 324 that extends downward for a predetermined length from the outdoor side X1 end of the indoor side horizontal plate portion 322, an outdoor side horizontal plate portion 325 that extends from the lower end of the step 324 along the upper surface of the outdoor side horizontal plate portion 225 of the existing lower frame 22 to the outdoor side X1 beyond the outdoor side horizontal plate portion 225 of the existing lower frame 22, and an outdoor side leg 326 that extends downward from the outdoor side X1 end of the outdoor side horizontal plate portion 325 and has its lower end positioned at a position above the upper surface of the floor structure 12 on the outdoor side X1 of the floor structure 12.

[0047] The airtight material mounting portion 323 is formed in a U-shape that opens upward. An airtight material 323a is attached to the airtight material mounting portion 323. An airtight material 327 is attached to the step 324 and the surface of the airtight material mounting portion 323 facing the outside X1. This airtight material 327 supports the door body 4 without damaging it, and ensures the airtightness of the door body 4. A decorative sheet material 328 is attached to the upper surface of the outside horizontal plate portion 325 and the surface of the upper end portion of the outside leg portion 326 facing the outside X1.

[0048] The left and right new vertical frames 33, 34 will now be described. As shown in Figures 4 and 5, the left and right new vertical frames 33, 34 are attached to the inner periphery of the left and right existing vertical frames 23, 24. The left and right new vertical frames 33, 34 are arranged on the inner periphery of the left and right existing vertical frames 23, 24, and their ends on the outside side X1 are arranged closer to the outside X1 than the left and right existing vertical frames 23, 24. The new vertical frames 33, 34 include indoor side frames 331, 341, outdoor side frames 332, 342, and bridge members 333a, 333b, 343a, 343b.

[0049] The indoor-side frames 331, 341 are disposed on the indoor side X2 of the new vertical frames 33, 34, and have hollow portions 331a, 341a that are rectangular in cross section. The hollow portions 331a, 341a extend in the vertical direction of the new vertical frames 33, 34. The indoor-side frames 331, 341 are provided with vertical frame airtight material mounting portions 331b, 341b that extend inward from the inner peripheral surface in the viewing direction, and airtight materials 331c, 341c attached to the outdoor side X1 of the vertical frame airtight material mounting portions 331b, 341b. The airtight materials 331c, 341c support the door body 4 to prevent damage and ensure the airtightness of the door body 4.

[0050] The exterior frames 332, 342 are arranged on the exterior side X1 of the new vertical frames 33, 34, and have rectangular hollow portions 332a, 342a extending in the projection direction in a cross-sectional view. The hollow portions 332a, 342a extend in the vertical direction of the new vertical frames 33, 34. The exterior frames 332, 342 are arranged away from the interior frames 331, 341 on the exterior side X1, and are connected by bridge members 333a, 333b. The hollow portions 332a, 342a of the exterior frames 332, 342 are set to have a greater length in the projection direction (front-to-back direction in Figures 4 and 5) than the hollow portions 331a, 341a of the interior frames 331, 341.

[0051] The bridge members 333a, 333a, 343b, 343b are arranged between the indoor frame members 331, 341 and the outdoor frame members 332, 342, connecting the indoor frame members 331, 341 and the outdoor frame members 332, 342. The bridge members 333a, 333a, 343b, 343b are made of a material with thermal insulation properties. The bridge members 333a, 333a, 343b, 343b connect the indoor frame members 331, 341 and the outdoor frame members 332, 342 while keeping them apart. This provides the newly installed vertical frames 33, 34 with excellent thermal insulation (thermal insulation function). The bridge members 333a, 333a, 343b, 343b are made of a material with low thermal conductivity, such as resin or rubber.

[0052] 4 and 5, on the indoor side X2 of the left and right new vertical frames 33, 34, spacers 334, 344 are attached to the outer circumferential surfaces in the left-right direction of the indoor side frames 331, 341 of the left and right new vertical frames 33, 34 and to the outer circumferential surfaces in the left-right direction of the outdoor frames 332, 342. The left and right new vertical frames 33, 34 are arranged laterally on the inner circumferential sides in the left-right direction of the existing vertical frames 23, 24 of the existing door frame 2, with the spacers 334, 344 sandwiched between them. Approximately triangular sealings 335, 345 are applied across the spacers 334, 344 and the outdoor side X1 surfaces of the plate materials 231c, 241c on the indoor side X2 of the recesses 231b, 241b of the existing vertical frame bodies 231, 241 of the existing vertical frames 23, 24.

[0053] As shown in Figures 4 and 5, new backup fittings 336, 346 (backup parts) are arranged on the outer periphery of the new vertical frames 33, 34, and new exterior wall materials 338, 348 (exterior wall materials) are attached along the outside X1 surface of the new backup fittings 336, 346.

[0054] The new exterior wall materials 338, 348 are composed of panels of a predetermined thickness made of, for example, metal siding. The new exterior wall materials 338, 348 are attached to the exterior side X1 of the new furring strips 153a, 153b around the new door frame 3. The new exterior wall materials 338, 348 are formed in the shape of a plate that extends outward in the left-right direction from the end on the outermost side X1 of the outer periphery of the new door frame 3, with a gap left-right outward from the new door frame 3.

[0055] The new exterior wall materials 338, 348 are arranged around the new door frame 3 on the outside X1 side of the existing vertical frames 23, 24 (existing door frames), and are arranged so as to cover the visible surfaces of the outside X1 side of the existing vertical frames 23, 24. The new exterior wall materials 338, 348 are arranged so as to cover the visible surfaces of the outside X1 side of the existing vertical frames 23, 24 over the entire area.

[0056] The new backup metal fittings 336, 346 are placed on the back surface of the new exterior wall materials 338, 348, at the inner peripheral end of the new exterior wall materials 338, 348. The new backup metal fittings 336, 346 are made of metal, and are fixed to the outdoor side X1 surfaces of spacers 337, 347 that are placed on the outdoor side X1 surfaces of the existing vertical frames 23, 24. The spacers 337, 347 are placed in the gaps between the existing vertical frames 23, 24 and the new exterior wall materials 338, 348. The spacers 337, 347 function as spacers, and the thickness can be adjusted by adjusting the number of spacers 337, 347 depending on the size of the gap between the existing vertical frames 23, 24 and the new exterior wall materials 338, 348.

[0057] The new backup fittings 336, 346 are arranged to block the indoor side X2 portion of the gap between the new vertical frames 33, 34 and the new exterior wall materials 338, 348 in order to provide space for filling sealing material 339, 349 between the new vertical frames 33, 34 and the new exterior wall materials 338, 348 when attaching the new exterior wall materials 338, 348 to the outdoor side X1 of the building structure 100.

[0058] The new backup fittings 336, 346 have mounting plates 336a, 346a (first portion) that are attached to the indoor side X2 surface of the new exterior wall material 338, 348, and rising protrusions 336b, 346b (second portion) that are L-shaped in cross section and protrude toward the outdoor side X1. The mounting plates 336a, 346a and the rising protrusions 336b, 346b are formed by folding back a single steel plate.

[0059] The mounting plates 336a, 346a are arranged on the back surfaces (the indoor-side X2 surfaces) of the new exterior wall materials 338, 348, and are formed like plates that extend in the left-right direction and in the longitudinal direction of the new vertical frames 33, 34. The mounting plates 336a, 346a are arranged at the inner left-right ends of the new exterior wall materials 338, 348 along the indoor-side X2 surfaces of the new exterior wall materials 338, 348, and are attached to the indoor-side X2 surfaces of the new exterior wall materials 338, 348. The mounting plates 336a, 346a are arranged between the new exterior wall materials 338, 348 and the spacers 337, 347 that are arranged on the outdoor-side X1 surfaces of the existing vertical frames 23, 24.

[0060] The rising protrusions 336b, 346b are formed in an L-shaped frame shape that opens outward in the left-right direction, and protrude from the left-right end of the mounting plates 336a, 346a on the new vertical frames 33, 34 side toward the outside X1. The rising protrusions 336b, 346b are arranged at the end of the new exterior wall materials 338, 348 on the new vertical frames 33, 34 side, between the end of the new exterior wall materials 338, 348 on the new vertical frames 33, 34 side and the new vertical frames 33, 34. As a result, the rising protrusions 336b, 346b are arranged to close the portion of the gap between the new vertical frames 33, 34 and the new exterior wall materials 338, 348 on the inside X2 side.

[0061] By arranging the rising protrusions 336b, 346b between the newly constructed exterior wall materials 338, 348 and the newly constructed vertical frames 33, 34 at the ends of the newly constructed exterior wall materials 338, 348 on the side of the newly constructed vertical frames 33, 34, a space is formed that opens to the outside X1 between the outside X1 surface of the rising protrusions 336b, 346b, the visible surface extending in the visible direction of the inner circumferential end of the newly constructed exterior wall materials 338, 348 in the left-right direction, and the visible surface on the outer circumferential side of the newly constructed vertical frames 33, 34 in the left-right direction.

[0062] The space formed between the outside X1 surface of the rising protrusions 336b, 346b, the projected surface extending in the projected direction of the inner circumferential end of the newly constructed exterior wall material 338, 348 in the left-right direction, and the projected surface on the outer circumferential side of the newly constructed vertical frame 33, 34 in the left-right direction is filled with sealing material 339, 349 (first sealing material) that is arranged between the newly constructed vertical frame 33, 34 and the new exterior wall material 338, 348 and fills the gap between the newly constructed vertical frame 33, 34 and the new exterior wall material 338, 348.

[0063] 4 and 5, the inner frame 35 is formed to extend from the inner peripheral portion of the end portion of the new vertical frames 33, 34 on the indoor side X2 toward the indoor side X2. The inner frame 35 is arranged to cover a part of the indoor side X2 of the existing door frame 2 and a part of the indoor side frame materials 133, 143 on the indoor side X2.

[0064] The inner frame 35 has an inner frame prospective direction extending plate 351 and an indoor side fixing portion 352. The inner frame prospective direction extending plate 351 is formed in a flat plate shape extending from the outdoor side X1 to the indoor side X2. The indoor side fixing portion 352 protrudes from the indoor side X2 end of the inner frame prospective direction extending plate 351 to the outer periphery in the left-right direction. The indoor side fixing portion 352 of the inner frame 35 is fixed to the indoor side frame materials 133, 143 with screws.

[0065] The remodeled door 1 of the first embodiment described above provides the following advantages: The remodeled door 1 of this embodiment includes a new door frame 3 (new upper frame 31, new vertical frames 33, 34) that is attached to the inner periphery of the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24), and new exterior wall materials 318, 338, 438 that are arranged to cover the visible surface of the outside side X1 of the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24). Therefore, by covering the visible surface of the outside X1 of the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24) with the new exterior wall materials 318, 338, 438, a renovated door can be constructed without covering the existing frame with an exterior frame having a large visible and projected width, so when a new door frame 3 is installed, the appearance seen from the outside X1 looks neat and sleek, improving the design of the appearance seen from the outside X1.

[0066] Furthermore, this embodiment is equipped with new backup metal fittings 316, 336, 346 that are placed on the back surface of the new exterior wall materials 318, 338, 438. As a result, by supporting the back surface of the new exterior wall materials 318, 338, 438 with the new backup metal fittings 316, 336, 346, the new exterior wall materials 318, 338, 438 can be easily installed around the new door frame 3 (new upper frame 31, new vertical frames 33, 34).

[0067] Furthermore, in this embodiment, sealing materials 319, 339, 349 are provided to fill gaps between the new door frame 3 (new upper frame 31, new vertical frames 33, 34) and the new exterior wall materials 318, 338, 438. This allows the sealing materials 319, 339, 349 to seal water between the new door frame 3 (new upper frame 31, new vertical frames 33, 34) and the new exterior wall materials 318, 338, 438, improving the watertight performance between the new door frame 3 (new upper frame 31, new vertical frames 33, 34) and the new exterior wall materials 318, 338, 438.

[0068] Furthermore, in this embodiment, spacers 317, 337, 347 are provided that are arranged between the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24) and the new exterior wall materials 318, 338, 438, and the thickness of the spacers 317, 337, 347 is adjustable. This allows the thickness-adjusted spacers 317, 337, 347 to be arranged between the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24) and the new exterior wall materials 318, 338, 438, even for new exterior wall materials 318, 338, 438 of different thicknesses, making it possible to easily arrange the new exterior wall materials 318, 338, 438 on the outdoor side X1 of the existing door frame 2 (existing upper frame 21, existing vertical frames 23, 24).

[0069] In this embodiment, the new exterior wall materials 318, 338, 438 are metal siding. Because metal siding is lightweight, forming the new exterior wall materials 318, 338, 438 from lightweight metal siding makes them easier to handle than exterior wall materials made of heavy ceramic siding, for example, and allows for a simpler configuration for supporting the new exterior wall materials 318, 338, 438.

[0070] Next, a second embodiment will be described with reference to Figures 6 to 8. In the first embodiment, new backup fittings 316, 336, 346 (backup portions) were provided separately from the new upper frame 31 and the new vertical frames 33, 34. In the second embodiment, as shown in Figures 6 to 8, mainly backup plate portions 312b, 332b, 342b (first portions, backup portions) and backup position restricting portions 312c, 332c, 342c (second portions, backup portions) are provided integrally with the new upper frame 31A and the new vertical frames 33A, 33A. In the second embodiment, the same components as in the first embodiment are designated by the same reference numerals, and their description will be omitted.

[0071] In the second embodiment, instead of the new backup fittings 316 arranged on the outer periphery of the new upper frame 31 shown in Fig. 3 of the first embodiment, the new upper frame 31A has a backup plate 312b (first portion, backup portion) and a backup position restricting portion 312c (second portion, backup portion) as shown in Fig. 6. The backup plate 312b and the backup position restricting portion 312c constitute the backup portion. The backup plate 312b and the backup position restricting portion 312c are provided integrally with the new upper frame 31A.

[0072] As shown in Figure 6, the backup plate portion 312b is formed in the shape of a plate extending upward for a predetermined length from the middle of the upper surface of the outdoor frame 312 of the newly installed upper frame 31A in the forward direction, and is arranged along the back surface (the indoor side X2 surface) of the newly installed exterior wall material 318.

[0073] The upper portion of the backup plate 312b is attached to the indoor-side X2 surface of the new exterior wall material 318, and is disposed between the new exterior wall material 318 and a spacer 317 disposed on the outdoor-side X1 surface of the existing upper frame 21. The lower end of the backup plate 312b is disposed so as to close the indoor-side X2 portion of the gap between the new upper frame 31 and the new exterior wall material 318, in order to provide space for filling with sealant 319 between the new upper frame 31 and the new exterior wall material 318 when the new exterior wall material 318 is attached to the outdoor-side X1 of the building skeleton 100.

[0074] The backup position restricting portion 312c is formed in the shape of a plate that protrudes toward the outside X1 from a position midway up and down on the backup plate portion 312b, away upward from the upper surface of the new upper frame 31A by the size of the gap between the new upper frame 31A and the new exterior building material 318. The backup position restricting portion 312c is disposed between the new upper frame 31A and the end of the new exterior building material 318 on the new upper frame 31A side, and restricts the position of the lower end of the new exterior building material 318 at a position away upward from the upper surface of the new upper frame 31A by the size of the gap between the new upper frame 31A and the new exterior building material 318.

[0075] With the position of the lower end of the newly constructed exterior wall material 318 restricted by the backup position restricting section 312c, the lower end of the backup plate section 312b is arranged to block the indoor side X2 portion of the gap between the newly constructed upper frame 31A and the newly constructed exterior wall material 318, so that a space with the outdoor side X1 open is formed between the outdoor side X1 surface of the lower end of the backup plate section 312b, the projected surface extending in the projected direction of the lower end of the newly constructed exterior wall material 318, and the projected surface of the upper end of the outdoor side X1 of the newly constructed upper frame 31A.

[0076] The space formed between the outside-side X1 surface of the lower end of the backup plate portion 312b, the projected surface extending in the projected direction of the lower end of the newly constructed exterior wall material 318, and the projected surface of the upper end of the newly constructed upper frame 31 on the outside X1 is filled with sealant 319 (first sealant) that is positioned between the newly constructed upper frame 31A and the new exterior wall material 318 on the outside X1 and fills the gap between the newly constructed upper frame 31A and the new exterior wall material 318.

[0077] In the second embodiment, instead of the new backup fittings 336, 346 arranged on the outer periphery of the new vertical frames 33, 34 shown in Figures 4 and 5 of the first embodiment, the new vertical frames 33A, 34A have backup plate portions 332b, 342b (first portion, backup portion) and backup position restricting portions 332c, 342c (second portion, backup portion) as shown in Figures 7 and 8. The backup plate portions 332b, 342b and the backup position restricting portions 332c, 342c constitute the backup portion. The backup plate portions 332b, 342b and the backup position restricting portions 332c, 342c are provided integrally with the new vertical frames 33A, 34A.

[0078] As shown in Figures 7 and 8, the backup plate portions 332b, 342b are formed in the shape of plates extending a predetermined length outward in the left-right direction from the middle of the projection direction on the outer left-right surface of the outdoor frame 332, 342 of the newly installed vertical frame 33A, 34A, and are arranged along the back surface (the indoor side X2 surface) of the newly installed exterior wall material 338, 348.

[0079] The outer left-right portions of the backup plate portions 332b, 342b are attached to the indoor-side X2 surfaces of the new exterior wall materials 338, 348, and are disposed between the new exterior wall materials 338, 348 and the spacers 337, 347 that are disposed on the outdoor-side X1 surfaces of the existing vertical frames 23, 24. The inner left-right ends of the backup plate portions 332b, 342b are disposed so as to close the indoor-side X2 portions of the gaps between the new vertical frames 33, 34 and the new exterior wall materials 338, 348, in order to provide space for filling the sealing material 339, 349 between the new vertical frames 33, 34 and the new exterior wall materials 348, 338 when the new exterior wall materials 338, 348 are attached to the outdoor-side X1 of the building skeleton 100.

[0080] The backup position restricting portions 332c, 342c are formed in the shape of plates that protrude toward the outside X1 at a position midway in the left-right direction of the backup plate portions 332b, 342b, from a position spaced outward in the left-right direction of the new vertical frames 33A, 34A by the size of the gap between the new vertical frames 33A, 34A and the new exterior wall materials 338, 348. The backup position restricting portions 332c, 342c are disposed between the new vertical frames 33A, 34A and the end of the new exterior wall materials 338, 348 on the new vertical frame 33A, 34A side, and the new vertical frames 33A, 34A, and restrict the inner position in the left-right direction of the new exterior wall materials 338, 348 at a position spaced outward in the left-right direction from the outer surface of the new vertical frames 33A, 34A by the size of the gap between the new vertical frames 33A, 34A and the new exterior wall materials 338, 348.

[0081] With the backup position regulating units 332c, 342c regulating the position of the inner left-right ends of the newly installed exterior wall materials 338, 348, the inner left-right ends of the backup plate units 332b, 342b are arranged to block the indoor side X2 portion of the gap between the newly installed vertical frames 33A, 34A and the newly installed exterior wall materials 338, 348, so that a space that is open to the outdoor side X1 is formed between the outdoor side X1 surface of the inner left-right ends of the backup plate units 332b, 342b, the visible surface extending in the visible direction of the inner left-right ends of the newly installed exterior wall materials 338, 348, and the outer left-right visible surface of the outdoor side X1 of the newly installed vertical frames 33A, 34A.

[0082] The space formed between the outside X1 surface of the inner left-right end of the backup plate portions 332b, 342b, the projected surface extending in the projected direction of the inner left-right end of the newly installed exterior wall materials 338, 348, and the outer left-right projected surface of the outside X1 of the newly installed vertical frames 33A, 34A is filled with sealing material 339, 349 (first sealing material) that is positioned between the new vertical frames 33A, 34A and the new exterior wall materials 338, 348 on the outside X1 and fills the gap between the new vertical frames 33A, 34A and the new exterior wall materials 338, 348.

[0083] According to the second embodiment, the backup plate portions 312b, 332b, 342b (first portion, backup portion) and the backup position restricting portions 312c, 332c, 342c (second portion, backup portion) are integrally formed with the new upper frame 31A and the new vertical frames 33A, 33A. Therefore, without providing the backup portions as separate members, the new exterior wall materials 318, 338, 348 (exterior wall materials) can be easily constructed using the backup plate portions 312b, 332b, 342b (first portion, backup portion) and the backup position restricting portions 312c, 332c, 342c (second portion, backup portion) that are integrally formed with the new upper frame 31A and the new vertical frames 33A, 33A.

[0084] Next, a third embodiment will be described with reference to Figures 9 to 11. The third embodiment is an embodiment in which, in addition to the backup plate portions 312b, 332b, 342b (first portion, backup portion) and backup position restricting portions 312c, 332c, 342c (second portion, backup portion) of the second embodiment, recessed portions 312d, 332d, 342d and cover portions 312e, 332e, 342e are integrally provided on the new upper frame 31B and the new vertical frame 33B, 34B. In the third embodiment, the same components as those in the second embodiment are denoted by the same reference numerals, and their description will be omitted.

[0085] In the third embodiment, as shown in Fig. 9, the new upper frame 31B has a different position of the backup position restricting portion 312c (second portion, backup portion) compared to the backup plate portion 312b (first portion, backup portion) and the backup position restricting portion 312c (second portion, backup portion) of the second embodiment shown in Fig. 6. Furthermore, in the third embodiment, the new upper frame 31B has a recess 312d and a cover portion 312e. The backup plate portion 312b, the backup position restricting portion 312c, the recess 312d, and the cover portion 312e are provided integrally with the new upper frame 31B.

[0086] As shown in Fig. 9, the recess 312d is recessed from the outside side X1 to the inside side X2 at the outer peripheral end of the end on the outside side X1 of the new upper frame 31B, thereby forming an L-shaped recess at a corner on the outside side X1 of the upper side of the new upper frame 31B. The recess 312d is defined by a front-direction extending plate 312d1 extending in the front direction at a position below the upper surface of the outside frame 312 and a vertical-direction extending plate 312d2 extending in the vertical direction at a position on the inside side X2 of the outside side X1 of the outdoor frame 312 at a position below the surface of the outside side X1 of the outdoor frame 312, and is formed in an L-shaped recess. The lower end of the new exterior wall material 318 is disposed so as to be swallowed up by the upper side of the recess 312d.

[0087] The backup plate 312b is formed in a plate shape that extends a predetermined length upward from the vertical extension plate 312d2 of the recess 312d, and is arranged along the back surface (the surface facing the indoor side X2) of the new exterior building material 318. The upper part of the backup plate 312b is attached to the surface facing the indoor side X2 of the new exterior building material 318, and is arranged between the new exterior building material 318 and the spacer 317 that is arranged on the surface facing the outdoor side X1 of the existing upper frame 21.

[0088] The backup position restricting portion 312c is formed in a plate shape that protrudes toward the outside side X1 from the middle of the vertical extension plate 312d2 of the recess 312d in the vertical direction. The backup position restricting portion 312c is arranged between the end of the new exterior building material 318 on the new upper frame 31B side and the new upper frame 31B, and restricts the position of the lower end of the new exterior building material 318 at a position spaced upward from the upper surface of the projection extension plate 312d1 of the recess 312d by the size of the gap between the new upper frame 31B and the new exterior building material 318. When the new exterior building material 318 restricts the backup position restricting portion 312c, the lower end of the new exterior building material 318 on the new upper frame 31B side is enclosed in the upper side of the recess 312d of the new upper frame 31B.

[0089] The portion of the vertical extension plate 312d2 of the recess 312d below the backup position regulating portion 312c is arranged to block the portion of the gap between the newly constructed upper frame 31 and the newly constructed exterior wall material 318 on the indoor side X2, in order to provide space for filling sealing material 319 between the newly constructed upper frame 31 and the newly constructed exterior wall material 318 when attaching the newly constructed exterior wall material 318 to the outdoor side X1 of the building structure 100.

[0090] The lower end of the newly constructed exterior wall material 318 is positioned so as to be swallowed up into the upper side of the recess 312d, and with the position of the lower end of the newly constructed exterior wall material 318 restricted by the backup position restricting portion 312c, the portion of the vertical extension plate 312d2 of the recess 312d below the backup position restricting portion 312c is arranged to block the indoor side X2 portion of the gap between the newly constructed upper frame 31B and the new exterior wall material 318.As a result, a space is formed that is open to the outdoor side X1 between the outdoor side X1 surface of the portion below the backup position restricting portion 312c of the vertical extension plate 312d2 of the recess 312d, the visible surface extending in the visible direction of the lower end of the new exterior wall material 318, and the visible surface of the upper end of the outdoor side X1 of the new upper frame 31B.

[0091] The space formed between the outdoor side X1 surface of the portion below the backup position regulating portion 312c of the vertical extension plate 312d2 of the recess 312d, the projected surface extending in the projected direction of the lower end of the newly constructed exterior wall material 318, and the projected surface of the upper end of the newly constructed upper frame 31 on the outdoor side X1 is filled with sealant 319 (first sealant) that is positioned between the newly constructed upper frame 31B and the new exterior wall material 318 on the outdoor side X1 and fills the gap between the newly constructed upper frame 31B and the new exterior wall material 318.

[0092] The cover portion 312e protrudes upward from the outside-side X1 end of the projection-direction extending plate 312d1 of the recess 312d in the outside frame 312 of the new upper frame 31B to a position where the backup position restricting portion 312c is provided and the sealing material 319 is arranged. The cover portion 312e is arranged on the outside-side X1 of the sealing material 319, thereby covering the outside-side X1 portion of the sealing material 319. This allows the cover portion 312e to cover the sealing material 319 so that the sealing material 319 is not visible from outside the outside side X1. Therefore, the sealing material 319 is not easily visible from outside the outside side X1, improving the design.

[0093] In the third embodiment, as shown in Figures 10 and 11, the positions of the backup position restricting portions 332c and 342c (second portion, backup portion) of the new vertical frames 33B and 34B are different from those of the backup plate portions 332b and 342b (first portion, backup portion) and the backup position restricting portions 332c and 342c (second portion, backup portion) of the second embodiment shown in Figures 7 and 8. Furthermore, in the third embodiment, the new vertical frames 33B and 34B have recesses 332d and 342d and cover portions 332e and 342e. The backup plate portions 332b and 342b, the backup position restricting portions 332c and 342c, the recesses 332d and 342d, and the cover portions 332e and 342e are integrally formed with the new vertical frames 33B and 34B.

[0094] 10 and 11, the recesses 332d, 342d are recessed from the outside side X1 to the inside side X2 at the outer peripheral end of the end of the outside side X1 of the new vertical frames 33B, 34B, and are thereby formed as L-shaped recesses at corner portions of the outside side X1 on the outside of the left and right direction of the new vertical frames 33B, 34B. The recesses 332d, 342d are formed as L-shaped recesses at corner portions of the outside side X1 on the outside of the left and right direction of the new vertical frames 33B, 34B, and are defined by front-direction extending plates 332d1, 342d1 extending in the front direction at a position inside the outside left and right faces of the outside frames 332, 342, and left-right extending plates 332d2, 342d2 extending in the left and right direction at a position on the inside X2 side of the outside side X1 of the outside frames 332, 342. The inner ends of the new exterior wall materials 338, 348 in the left-right direction are disposed so as to be swallowed up by the outer sides of the recesses 332d, 342d in the left-right direction.

[0095] The backup plates 332b, 342b are formed in the shape of plates that extend outward in the left-right direction from the left-right extending plates 332d2, 342d2 of the recesses 332d, 342d, and are arranged along the back surfaces (the indoor side X2 surfaces) of the new exterior wall materials 338, 348. The outer left-right portions of the backup plates 332b, 342b are attached to the indoor side X2 surfaces of the new exterior wall materials 338, 348, and are arranged between the new exterior wall materials 338, 348 and the spacers 337, 347 that are arranged on the outdoor side X1 surfaces of the existing vertical frames 23, 24.

[0096] The backup position restricting portions 332c, 342c are formed in the shape of plates that protrude toward the outside side X1 from midway in the left-right direction of the left-right extending plates 332d2, 342d2 of the recesses 332d, 342d. The backup position restricting portions 332c, 342c are arranged between the end portions of the new exterior wall materials 338, 348 on the new vertical frames 33B, 34B side and the new vertical frames 33B, 34B, and restrict the position of the inside end portions in the left-right direction of the new exterior wall materials 338, 348 at a position spaced outward from the outside left-right faces of the prospective direction extending plates 332d1, 342d1 of the recesses 332d, 342d by the size of the gap between the new vertical frames 33B, 34B and the new exterior wall materials 338, 348. When the newly constructed exterior wall materials 338, 348 are in a state where they are restricting the backup position restricting portions 332c, 342c, the ends of the newly constructed exterior wall materials 338, 348 on the inner left-right side of the newly constructed vertical frames 33B, 34B are swallowed up and positioned in the outer left-right parts of the recesses 332d, 342d of the newly constructed vertical frames 33B, 34B.

[0097] The left-right inward portions of the left-right extending plates 332d2, 342d2 of the recesses 332d, 342d that are more inward in the left-right direction than the backup position regulating portions 332c, 342c are arranged to block the indoor side X2 portion of the gap between the newly installed vertical frames 33, 34 and the newly installed exterior wall materials 338, 348, in order to provide space for filling sealing material 339, 349 between the newly installed vertical frames 33, 34 and the newly installed exterior wall materials 338, 348 when attaching the newly installed exterior wall materials 338, 348 to the outdoor side X1 of the building structure 100.

[0098] The inner ends of the new exterior wall materials 338, 348 in the left-right direction are disposed so as to be swallowed up by the outer parts of the recesses 332d, 342d in the left-right direction, and the positions of the inner ends of the new exterior wall materials 338, 348 in the left-right direction are restricted by the backup position restricting parts 332c, 342c. In this state, the inner parts of the left-right direction than the backup position restricting parts 332c, 342c of the left-right extending plates 332d2, 342d2 of the recesses 332d, 342d are disposed so as to be swallowed up by the outer parts of the recesses 332d, 342d. Because it is arranged to block the indoor side X2 portion of the gap between 338, 348, a space that is open to the outdoor side X1 is formed between the outdoor side X1 surface of the part that is left and right more inward than the backup position regulating portion 332c, 342c of the left and right extending plates 332d2, 342d2 of the recesses 32d, 342d, the visible surface extending in the visible direction of the inner left and right end portion of the newly installed exterior wall material 338, 348, and the visible surface of the outer left and right end portion of the outdoor side X1 of the newly installed vertical frames 33B, 34B.

[0099] The space formed between the outside X1 surface of the part of the recess 32d, 342d that is left-right inward of the backup position restricting portion 332c, 342c of the left-right extending plate 332d2, 342d2, the projected surface extending in the projected direction of the inside left-right end of the new exterior wall material 338, 348, and the projected surface of the outside left-right end of the outside X1 of the new vertical frame 33B, 34B is filled with sealing material 339, 349 (first sealing material) that is arranged between the new vertical frame 33B, 34B and the new exterior wall material 338, 348 on the outside X1 and fills the gap between the new vertical frame 33B, 34B and the new exterior wall material 338, 348.

[0100] The cover portions 332e, 342e protrude outward in the left-right direction from the ends of the front-direction extending plates 332d1, 342d1 of the recesses 332d, 342d in the outdoor frames 332, 342 of the new vertical frames 33B, 34B on the outdoor side X1 to positions where the backup position restricting portions 332c, 342c are provided and where the sealing materials 339, 349 are arranged. The cover portions 332e, 342e are arranged on the outdoor side X1 of the sealing materials 339, 349, thereby covering the outdoor side X1 portions of the sealing materials 339, 349. This allows the cover portions 332e, 342e to cover the sealing materials 339, 349 so that the sealing materials 339, 349 are not visible from outside the outdoor side X1. Therefore, the sealing materials 339, 349 are difficult to see from outside the outside side X1, thereby improving the design.

[0101] In the third embodiment, the backup plate portions 312b, 332b, 342b (first portion, backup portion) and the backup position restricting portions 312c, 332c, 342c (second portion, backup portion) are provided integrally with the new upper frame 31B and the new vertical frames 33B, 33B. Therefore, according to the third embodiment, similar to the second embodiment, the backup portions are not provided as separate members, and new exterior wall materials 318, 338, 348 (exterior wall materials) can be easily constructed using the backup plate portions 312b, 332b, 342b (first portion, backup portion) and the backup position restricting portions 312c, 332c, 342c (second portion, backup portion) provided integrally with the new upper frame 31B and the new vertical frames 33B, 33B.

[0102] Furthermore, in the third embodiment, the lower end of the new exterior wall material 318 on the new upper frame 31B side is disposed so as to be swallowed up into the upper side of the recess 312d of the new upper frame 31B. The inner left-right ends of the new exterior wall materials 338, 348 on the new vertical frames 33B, 34B side are disposed so as to be swallowed up into the outer left-right parts of the recesses 332d, 342d of the new vertical frames 33B, 34B. In this way, by disposing the new exterior wall materials 318, 338, 348 so as to be swallowed up into part of the recess 332d, 342d, the new exterior wall materials 318, 338, 348 can be easily attached to the new upper frame 31B and the new vertical frames 33B, 34B.

[0103] Furthermore, in the third embodiment, the cover portions 312e, 332e, 342e are arranged on the outdoor side X1 of the sealing materials 319, 339, 349, thereby covering the outdoor side X1 portions of the sealing materials 319, 339, 349. This allows the cover portions 312e, 332e, 342e to cover the sealing materials 319, 339, 349 so that the sealing materials 319, 339, 349 are not visible from outside the outdoor side X1. Therefore, the sealing materials 319, 339, 349 are not easily visible from outside the outdoor side X1, thereby improving the design.

[0104] Next, a fourth embodiment will be described with reference to FIGS. 12 to 14. As shown in FIGS. 12 to 14, the new upper frame 31C and new vertical frames 33C and 34C of the fourth embodiment are configured such that the new upper frame 31B and new vertical frames 33B and 34B of the third embodiment (see FIGS. 9 to 11) do not have the cover portions 312e, 332e, and 342e. The other configurations are the same as those of the third embodiment (see FIGS. 9 to 11). The same reference numerals are used to designate the same components as those of the third embodiment, and their description will be omitted. The fourth embodiment can achieve the same effects as those of the third embodiment, except for the effects achieved by the cover portions 312e, 332e, and 342e in the new upper frame 31B and new vertical frames 33B and 34B of the third embodiment.

[0105] Next, a fifth embodiment will be described with reference to Figures 15 to 17. The new upper frame 31D and new vertical frames 33D and 34D of the fifth embodiment are an embodiment in which cover parts 51, 53, and 54 are provided at the ends of the outside side X1 of the new upper frame 31 and new vertical frames 33 and 34 in the first embodiment (see Figures 3 to 5). In the fifth embodiment, the same components as in the first embodiment are denoted by the same reference numerals, and their description will be omitted.

[0106] In the fifth embodiment, in addition to the configuration of the new upper frame 31 shown in Fig. 3 of the first embodiment, the new upper frame 31D is provided with a cover part 51 at the end on the outside X1 side to cover the outside X1 part of the sealing material 319, as shown in Fig. 15. The cover part 51 is configured separately from the new upper frame 31D, and is arranged along the visible surface of the end on the outside X1 side of the outside frame 332 of the new upper frame 31D.

[0107] As shown in FIG. 15, the cover portion 51 is formed in an L-shape and has a facing direction extending plate 511 and a protruding plate 512.

[0108] The facing direction extending plate 511 is formed in the shape of a plate extending along the facing surface of the outside X1 end of the outside frame 312 of the newly installed upper frame 31D, and extends in the vertical direction from the lower end of the outside frame 312 of the newly installed upper frame 31D, beyond the upper end of the outside frame 312, to the position where the lower end of the newly installed exterior wall material 318 will be positioned and where the sealing material 319 will be positioned.

[0109] Double-sided tape 51a is placed between the front-side extending plate 511 of the cover portion 51 and the newly installed upper frame 31D. As a result, the back surface of the front-side extending plate 511 of the cover portion 51 is attached to the front surface of the end portion of the outside frame 312 on the outside X1 side by the double-sided tape 51a.

[0110] The protruding plate 512 is formed in a plate shape that protrudes a predetermined length toward the indoor side X2 from the upper end of the front-side extending plate 511. The position of the upper end of the front-side extending plate 511 is the position of the lower end of the new exterior wall material 318.

[0111] The protruding plate 512 has a portion where the exterior frame 312 of the newly installed upper frame 31D protrudes further toward the outside X1 than the newly installed exterior wall material 318, forming a step between the visible surface of the exterior frame 312 of the newly installed upper frame 31D on the outside X1 side and the visible surface of the newly installed exterior wall material 318, and protrudes a predetermined length from the upper end of the visible direction extending plate 511 toward the inside X2 side so as to cover the space created by the step between the visible surface of the exterior frame 312 of the newly installed upper frame 31D on the outside X1 side and the visible surface of the newly installed exterior wall material 318 from the upper side.

[0112] A sealant 51b (second sealant) is placed at the inner corner of the L-shaped portion formed by the protruding plate 512 and the facing-direction extending plate 511. The sealant 51b is placed on the outdoor side X1 of the sealant 319 that is placed between the outdoor side frame 312 of the new upper frame 31D and the new exterior wall material 318.

[0113] In the cover part 51 configured as described above, the front-direction extending plate 511 covers the front surface of the end of the outside side X1 of the outside frame 312 of the new upper frame 31D so that it cannot be seen from the outside side X1, and can also cover the sealing material 319 so that it cannot be seen from the outside side X1. In addition, the protruding plate 512 can cover the upper part of the sealing material 319 that is arranged between the outside frame 312 of the new upper frame 31D and the new exterior wall material 318 so that the sealing material 319 cannot be seen from the side above.

[0114] The surface of the cover portion 51 has the same type of exterior design as either or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall material 318. Therefore, the surface of the cover portion 51 and either or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall material 318 are unified with the same type of exterior design, and therefore the appearance seen from outside the room has the same texture or the same color tone. This allows for a unified design.

[0115] In this embodiment, the term "exterior design" refers to the appearance or design of the exterior. "Having the same type of exterior design" refers to, for example, a case where the overall design of the appearance is unified or the texture of the appearance is very similar. For example, the same type of exterior design can be achieved by performing a surface treatment such as wrapping on the surface of the exterior side X1 of the cover portion 51 and one or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall material 318, or by attaching a wrapping sheet to the surface, which will achieve the same type of exterior design.

[0116] In the fifth embodiment, in addition to the configuration of the new vertical frames 33, 34 shown in Figures 4 and 5 of the first embodiment, the new vertical frames 33D, 34D are provided with cover parts 53, 54 that cover the outdoor X1 parts of the sealing materials 339, 349 at their ends on the outdoor side X1, as shown in Figures 16 and 17. The cover parts 53, 54 are formed separately from the new vertical frames 33D, 34D, and are arranged along the visible surfaces of the ends on the outdoor side X1 of the outdoor frames 332, 342 of the new vertical frames 33D, 34D.

[0117] As shown in FIGS. 16 and 17, the cover portions 53 and 54 are formed in an L shape and have facing-direction extending plates 531 and 541 and protruding plates 532 and 542. As shown in FIGS.

[0118] The facing direction extending plates 531, 541 are formed in the shape of plates extending along the facing surface of the outside X1 end of the outdoor frame 332, 342 of the newly installed vertical frame 33D, 34D, and extend in the left-right direction from the inside left-right end of the outdoor frame 332, 342 of the newly installed vertical frame 33D, 34D, beyond the outside left-right end of the outdoor frame 332, 342, to the position where the inside left-right end of the newly installed exterior wall material 338, 348 is located, and where the sealing material 339, 349 is located.

[0119] Double-sided tape 53a, 54a is arranged between the front-side extending plates 531, 541 of the cover parts 53, 54 and the new vertical frames 33D, 34D. As a result, the back surfaces of the front-side extending plates 531, 541 of the cover parts 53, 54 are attached to the front surfaces of the ends of the exterior frames 332, 342 on the outside X1 side by the double-sided tape 53a, 54a.

[0120] The protruding plates 532, 542 are formed in the shape of plates that protrude a predetermined length toward the interior side X2 from the outer left-right ends of the facing-direction extending plates 531, 541. The positions of the outer left-right ends of the facing-direction extending plates 531, 541 correspond to the positions of the inner left-right ends of the new exterior wall materials 338, 348.

[0121] The protruding plates 532, 542 have portions where the exterior frames 332, 342 of the new vertical frames 33D, 34D protrude further toward the outside X1 than the new exterior wall materials 338, 348, so that a step is formed between the exterior X1 facing surface of the exterior frames 332, 342 of the new vertical frames 33D, 34D and the facing surface of the new exterior wall materials 338, 348, and the protruding plates 532, 542 protrude a predetermined length from the outer left-right ends of the facing direction extending plates 531, 541 toward the interior X2 so as to cover the space created by the step between the exterior X1 facing surface of the exterior frames 332, 342 of the new vertical frames 33D, 34D and the facing surface of the new exterior wall materials 338, 348 from the outer left-right sides.

[0122] Sealant 53b, 54b (second sealant) is placed at the inner corner of the L-shaped portion formed by the protruding plate 532, 542 and the facing-direction extending plate 531, 541. The sealant 53b, 54b is placed on the outdoor side X1 of the sealant 339, 349 placed between the outdoor side frames 332, 342 of the new vertical frames 33D, 34D and the new exterior wall material 338, 348.

[0123] In the cover parts 53, 54 configured as described above, the front-direction extending plates 531, 541 can cover the front surfaces of the ends of the outside frames 332, 342 of the new vertical frames 33D, 34D on the outside X1 side so that they cannot be seen from the outside X1, and can also cover the sealing materials 339, 349 so that they cannot be seen from the outside X1. Furthermore, the protruding plates 532, 542 of the cover parts 53, 54 can cover the outer left-right portions of the sealing materials 339, 349 that are arranged between the outside frames 332, 342 of the new vertical frames 33D, 34D and the new exterior wall materials 338, 348 so that the sealing materials 339, 349 cannot be seen from the outer left-right sides.

[0124] The exterior surface X1 of the cover portions 53, 54 has the same type of exterior design as either or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall materials 338, 348. Therefore, the surfaces of the cover portions 53, 54 and either or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall materials 338, 348 are unified with the same type of exterior design, and the appearance seen from outside the room has the same texture or the same color tone. This allows for a unified design.

[0125] In this embodiment, the term "exterior design" refers to the appearance or design of the exterior. "Having the same type of exterior design" refers to, for example, a case where the overall design of the appearance is unified or the texture of the appearance is very similar. For example, the same type of exterior design can be achieved by performing a surface treatment such as wrapping on the surface of the exterior side X1 of the cover portion 53, 54 and one or both of the surface of the door body 4 of the remodeled door 1 and the surface of the new exterior wall material 338, 348, or by attaching a wrapping sheet to the surface to achieve the same type of exterior design.

[0126] 15 to 17, in this embodiment, protrusions 312f, 332f, and 342f are formed midway in the vertical direction on the visible surface of the end portion on the outside X1 side of the new upper frame 31D and midway in the horizontal direction on the visible surface of the end portion on the outside X1 side of the outdoor frames 312, 332, and 342 of the new vertical frames 33D and 34D. The protrusions 312f, 332f, and 342f are also covered by the covers 51, 53, and 54. The protrusions 312f, 332f, and 342f are not related to the configuration of this embodiment, but are provided to position the frame cover using the protrusions 312f, 332f, and 342f, for example, when attaching a frame cover or the like to a position midway in the vertical direction on the visible surface of the end of the outside X1 side of the new upper frame 31D and a position midway in the horizontal direction on the visible surface of the end of the outside X1 side of the outside frames 312, 332, and 342 of the new vertical frames 33D and 34D. Note that, because they are not related to the configuration of this embodiment, the protrusions 312f, 332f, and 342f do not necessarily have to be provided in this embodiment.

[0127] The fifth embodiment includes cover parts 51, 53, 54 that cover the outdoor side X1 portions of the sealing materials 319, 339, 349. The cover parts 51, 53, 54 are separate from the new upper frame 31D and the new vertical frames 33D, 34D. This allows the cover parts 51, 53, 54 to be attached later and positioned to cover the outdoor side X1 portions of the sealing materials 319, 339, 349.

[0128] In the fifth embodiment, double-sided tapes 51a, 53a, and 54a are arranged between the front-direction extending plates 511, 531, and 541 of the cover parts 51, 53, and 54 and the new upper frame 31D and the new vertical frames 33D and 34D, respectively. This allows the cover parts 51, 53, and 54 to be easily attached to the new upper frame 31D and the new vertical frames 33D and 34D.

[0129] In the fifth embodiment, sealants 51b, 53b, and 54b (second sealants) are arranged at the inner corners of the L-shaped portions of the cover portions 51, 53, and 54 formed by the protruding plates 512, 532, and 542 and the facing-direction extending plates 511, 531, and 541. This further improves the waterproofing performance of the cover portions 51, 53, and 54 that cover the outdoor-side X1 portions of the sealants 319, 339, and 349.

[0130] Next, a sixth embodiment will be described with reference to Figures 18 to 20. The new upper frame 31E of the sixth embodiment is an embodiment in which heat insulating materials 61 are arranged on the upper surfaces of the indoor-side frame 311 and the outdoor-side frame 312 of the new upper frame 31D of the fifth embodiment. Furthermore, the new vertical frames 33E and 34E of the sixth embodiment are an embodiment in which heat insulating materials 63 and 64 are arranged on the indoor-side frames 331 and 341 and the outdoor-side frames 332 and 342 of the new vertical frames 33D and 34D of the fifth embodiment. In the sixth embodiment, the same components as those of the first and fifth embodiments are denoted by the same reference numerals, and their description will be omitted.

[0131] In the sixth embodiment, in addition to the configuration of the new upper frame 31D and new vertical frames 33D, 34D shown in Figures 15 to 17 of the fifth embodiment, as shown in Figures 18 to 20, insulation materials 61, 63, 64 are provided between the new upper frame 31D and new vertical frames 33E, 34E and the new exterior wall materials 318, 338, 348.

[0132] As shown in Fig. 18, the heat insulating material 61 is formed in a plate shape having a thickness in the vertical direction, and is arranged over the entire area in the prospective direction on the upper surface (prospective surface) of the indoor-side frame 311 of the new upper frame 31E and the upper surface (prospective surface) of the outdoor-side frame 312. A sealant 319 is provided on the upper surface of the heat insulating material 61 at the end on the outdoor-side X1 side, and a rising protrusion 316b of the new backup fitting 316 is arranged on the indoor-side X2 side of the sealant 319. The existing upper frame 21 is arranged above the indoor-side X2 side of the heat insulating material 61.

[0133] As shown in Figures 19 and 20, the heat insulating materials 63, 64 are formed in plate shapes with a thickness in the left-right direction and are arranged over the entire left-right outer surfaces (prospective surfaces) of the indoor frames 331, 341 of the new vertical frames 33E, 34E and the outdoor frames 332, 342. Sealing materials 339, 349 are provided on the ends of the outdoor side X1 on the left-right outer surfaces of the heat insulating materials 63, 64, and rising protrusions 336b, 346b of the new backup metal fittings 336, 346 are arranged on the indoor side X2 of the sealing materials 339, 349. The existing vertical frames 23, 24 are arranged on the left-right outer sides of the heat insulating materials 63, 64.

[0134] In the sixth embodiment, in addition to the configuration of the fifth embodiment, a thermal insulation material 61 is provided that is arranged between the new upper frame 31E and the new exterior wall material 318, and thermal insulation materials 63, 64 are provided that are arranged between the new vertical frames 33E, 34E and the new exterior wall materials 338, 348. Therefore, according to the sixth embodiment, not only can the same effects as the fifth embodiment be achieved, but also the thermal insulation materials 61, 63, 64 are arranged between the new upper frame 31E, the new vertical frames 33E, 34E and the new exterior wall materials 318, 348, 358, and the thermal insulation materials 61, 63, 64 block heat transfer between the new upper frame 31E, the new vertical frames 33E, 34E and the new exterior wall materials 318, 348, 358, thereby improving the thermal insulation performance.

[0135] Next, the seventh embodiment will be described with reference to Figures 21 to 23. As shown in Figures 21 to 23, the new upper frame 31F and new vertical frames 33F, 34F of the seventh embodiment are configured to include the cover sections 51, 53, 54 of the fifth embodiment (Figures 15 to 17) in addition to the configuration of the new upper frame 31A and new vertical frames 33A, 34A of the second embodiment (see Figures 6 to 8). In the seventh embodiment, the same components as those of the second and fifth embodiments are denoted by the same reference numerals, and their description will be omitted. In the seventh embodiment, it is possible to achieve both the same effects as those of the second embodiment and the effects of including the cover sections 51, 53, 54 of the fifth embodiment.

[0136] The present disclosure is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present disclosure.

[0137] For example, in the above-described embodiment, the new exterior wall materials 318, 338, 438 (exterior wall materials) are formed from metal siding, but are not limited to this. The new exterior wall materials 318, 338, 438 (exterior wall materials) may also be formed from ceramic siding.

[0138] In addition, in the above embodiment, the door body is configured as a hinged door body 4 that can be opened and closed by rotating around a rotation axis, but this is not limited to this, and the door body may also be configured as a sliding door that can move laterally. [Explanation of symbols]

[0139] 1 Renovated door, 2 Existing door frame, 3 New door frame, 21 Existing upper frame, 23, 24 Existing vertical frame, 31 New upper frame, 33, 34 New vertical frame, 51, 53, 54 Cover part, 51a, 53a, 54a Double-sided tape, 51b, 53b, 54b Sealant (second sealant), 61, 63, 64 Heat insulating material, 312b, 332b, 342b Backup plate part (first part, backup part), 312c, 332c, 342c Backup position control part (second part, backup part), 312e, 332e, 342e Cover part, 316, 336, 346 New backup fitting (backup part), 317, 337, 347 Spacer, 318, 338, 438 New exterior wall materials (exterior wall materials), 319, 339, 349 sealants (first sealants)

Claims

1. A new door frame that is attached to the inner periphery of the existing door frame; A remodeled door comprising an exterior wall material that is placed to cover the exterior visible surface of the existing door frame.

2. The retrofit door of claim 1 , further comprising a backup portion having a first portion disposed on a rear surface of the exterior siding.

3. The remodeled door according to claim 2 , wherein the backup portion has a second portion disposed between an end of the exterior wall material on the side of the new door frame and the new door frame.

4. The remodeled door according to claim 2 or 3, wherein the backup portion is integrally provided on the new door frame.

5. The retrofit door according to claim 1 or 2, further comprising a first sealant that fills a gap between the new door frame and the exterior wall material.

6. a spacer disposed between the existing door frame and the exterior wall material; The retrofit door of claim 1 or 2, wherein the spacer has an adjustable thickness.

7. 3. The retrofit door of claim 1, wherein the exterior material is metal siding.

8. The retrofit door according to claim 5 , further comprising a cover portion that covers an exterior side portion of the first sealant.

9. The retrofit door according to claim 8 , wherein the cover portion is integrally provided on the new door frame.

10. The retrofit door according to claim 8 , wherein the cover portion is separate from the new door frame.

11. The remodelable door according to claim 8, wherein the surface of the cover portion has the same type of appearance design as at least one or both of the surface of the door body and the surface of the exterior wall material.

12. The new door frame has a recess that is recessed from the outside to the inside of the room at an outer peripheral end of the outside end, The remodeled door according to claim 1 or 2, wherein an end portion of the exterior wall material on the side of the newly installed door frame is disposed so as to be swallowed up by at least a part of the recess.

13. The retrofit door of claim 10, further comprising double-sided tape disposed between the cover portion and the new door frame.

14. The cover portion is formed in an L-shape, The retrofit door of claim 10, further comprising a second sealant disposed inside a corner of the L-shaped portion of the cover.

15. The retrofit door of claim 1 , further comprising insulation disposed between the new door frame and the exterior siding.

Citation Information

Patent Citations

  • Roof structure

    JP2019173303A