Fixture and fixture remodeling method

Abstract

To provide a fixture and a fixture remodeling method that can enhance fireproof performance.SOLUTION: A fixture comprises a new frame 31 attached to an existing frame 2 fixed on a skeleton 11, a metallic auxiliary material 8 fixed on the existing frame 2, and a metallic seal material 44 that is fixed on the auxiliary material 8 and arranged between the existing frame 2 and the new frame 31.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to fittings and methods for renovating fittings. [Background technology]

[0002] Conventionally, when renovating building fixtures, the frame of the new fixture is installed and fixed inside the frame of the existing fixture. The new fixture is provided with a member that closes the gap between the new frame and the existing frame in order to improve fire prevention performance (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-45641 Summary of the Invention [Problem to be solved by the invention]

[0004] Higher fire resistance is desired for building materials for renovation.

[0005] The present disclosure aims to provide building materials and a method for renovating building materials that can improve fire resistance. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objective, the building fixture of the present disclosure comprises a new frame attached to an existing frame fixed to a main body, a metal auxiliary material fixed to the existing frame, and a metal stopper material fixed to the auxiliary material and placed between the existing frame and the new frame.

[0007] In order to achieve the above-mentioned objective, the method of renovating building materials disclosed herein includes attaching a metal auxiliary material to an existing frame fixed to a main body, attaching a new frame to the existing frame, attaching the new frame to the auxiliary material, and attaching a metal sealing material to be placed between the existing frame and the new frame. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a vertical cross-sectional view of the fitting according to the first embodiment. [Figure 2] FIG. 2 is a horizontal cross-sectional view of the fitting according to the first embodiment. [Figure 3] A vertical cross-sectional view of the existing upper frame and the new upper frame. [Figure 4] A vertical cross-sectional view of the existing lower frame and the new lower frame. [Figure 5] A horizontal cross-sectional view of the first existing vertical frame and the first new vertical frame. [Figure 6] A horizontal cross-sectional view of the second existing vertical frame and the second new vertical frame. [Figure 7] FIG. 10 is a diagram showing the arrangement of a sealing material and a supporting material. [Figure 8] A diagram showing a newly installed upper frame of a fixture according to the second embodiment. [Figure 9] A diagram showing a newly installed upper frame of a building fixture according to the third embodiment. [Figure 10] A diagram showing a newly installed upper frame of a building fixture according to the fourth embodiment. [Figure 11] A diagram showing a newly installed upper frame of a building fixture according to the fifth embodiment. [Figure 12] A diagram showing a newly installed upper frame of a building fixture according to the sixth embodiment. [Figure 13] A figure showing a first modified example of a new upper frame of a building fixture according to the sixth embodiment. [Figure 14] A figure showing a second modified example of the newly installed upper frame of a building fixture according to the sixth embodiment. [Figure 15] A diagram showing the newly installed lower frame of a fitting according to the seventh embodiment. [Figure 16] This is an exploded view of the new lower frame, attachment, and existing lower frame. [Figure 17] A diagram showing the arrangement of the new lower frame, attachments, and existing lower frame. [Figure 18] This is an oblique view showing the arrangement of the attachment and the new vertical frame. [Figure 19]A diagram showing the arrangement of attachments and new vertical frames. [Figure 20] A diagram showing another arrangement of attachments and new vertical frames. [Figure 21] A diagram showing another form of sealing material for a newly constructed upper frame. [Figure 22] A diagram showing another form of sealing material for the first newly installed vertical frame. [Figure 23] A diagram showing another form of sealing material for the second newly installed vertical frame. [Figure 24] This is a diagram showing a new lower frame fixed to an existing lower frame without any auxiliary materials. [Figure 25] This is a diagram of the attachment not in contact with the interior rail. [Figure 26] This is a vertical cross-sectional view of a building fixture in which a sealing material is provided between the double-glazed glass and the frame. [Figure 27] This is a horizontal cross-sectional view of a fixture in which a sealant is provided between the double-glazed glass and the frame. DETAILED DESCRIPTION OF THE INVENTION

[0009] (First embodiment) As shown in Figures 1 and 2, the fitting 1 according to the first embodiment is a fitting that is newly installed when renovating an existing fitting 2 that is fixed to the building frame 11. The fitting 1 is a sliding sash. The fitting 1 has a new frame 31, an inner shoji screen 32, an outer shoji screen 33, sealing materials 44, 64, 74, and an auxiliary material 54. The new frame 31 is installed inside the existing frame 21 of the existing fitting 2. The sealing materials 44, 64, 74 seal the gap between the new frame 31 and the existing frame 21. The sealing materials 44, 64, 74 prevent flames from penetrating through the gap between the new frame 31 and the existing frame 21 in the event of a fire. The auxiliary material 54 is fixed to the existing frame 21, and the new frame 31 is fixed thereto. The sealing materials 44, 64, 74 and the auxiliary material 54 are made of metal.

[0010] The existing fitting 2 is a metal sash. The new frame 31 is installed to cover the existing frame 21. The newly installed fitting 1 is a composite sash made of metal and resin. The direction connecting the indoors and outdoors is referred to as the indoor-outdoor direction. In the drawings, the indoors is indicated by the reference numeral 12, and the outdoors is indicated by the reference numeral 13. The horizontal direction perpendicular to the indoor-outdoor direction is referred to as the left-right direction. In the left-right direction, the center of the left and right sides of the left and right direction is sometimes referred to as the inside, and both sides of the center of the left and right direction are sometimes referred to as the outside. The posture of each component in the following explanation is the posture when the fitting 1 is attached to the main body 11.

[0011] The existing frame 21 has an existing upper frame 22, an existing lower frame 23, and a pair of existing vertical frames 241, 242. The existing upper frame 22 and the existing lower frame 23 extend in the left-right direction. The existing upper frame 22 and the existing lower frame 23 each have approximately the same cross-sectional shape throughout the entire vertical direction. The pair of existing vertical frames 241, 242 extend in the up-down direction. The pair of existing vertical frames 241, 242 each have approximately the same cross-sectional shape throughout the entire horizontal direction. Of the pair of existing vertical frames 241, 242, the existing vertical frame 241 located on one side in the left-right direction, which is the left side when viewed from the indoor side, is referred to as the first existing vertical frame 241, and the existing vertical frame 242 located on the other side in the left-right direction, which is the right side when viewed from the indoor side, is referred to as the second existing vertical frame 242.

[0012] As shown in FIG. 3 , the existing upper frame 22 has an indoor-side panel portion 221, an outdoor-side panel portion 222, an intermediate panel portion 223, an upper panel portion 224, and an indoor-side protruding panel portion 225. The indoor-side panel portion 221, the outdoor-side panel portion 222, and the intermediate panel portion 223 have panel surfaces facing the indoor / outdoor direction. The upper panel portion 224 and the indoor-side protruding panel portion 225 have panel surfaces facing the vertical direction. The indoor-side panel portion 221 is disposed on the indoor side. The outdoor-side panel portion 222 is disposed on the outdoor side. The upper panel portion 224 is disposed between the indoor-side panel portion 221 and the outdoor-side panel portion 222. The indoor-side edge of the upper panel portion 224 is connected to the vertical middle portion of the indoor-side panel portion 221. The outdoor-side edge of the upper panel portion 224 is connected to the vertical middle portion of the outdoor-side panel portion 222. The intermediate plate portion 223 extends downward from a middle portion in the indoor / outdoor direction of the upper plate portion 224. The indoor side protruding plate portion 225 extends indoors from a middle portion in the up-down direction of the outdoor side plate portion 222. The indoor side protruding plate portion 225 is disposed below the upper plate portion 224.

[0013] As shown in FIG. 4 , the existing lower frame 23 has an indoor-side panel portion 231, an outdoor-side panel portion 232, a lower panel portion 233, an indoor-side protruding panel portion 234, a gutter mounting portion 235, an indoor-side rail 236, and an outdoor-side rail 237. The indoor-side panel portion 231 and the outdoor-side panel portion 232 have panel surfaces facing the indoor / outdoor direction. The lower panel portion 233 is inclined diagonally downward from the indoor side toward the outdoor side. The indoor-side protruding panel portion 234 has a panel surface facing the up-down direction. The indoor-side panel portion 231 is disposed on the indoor side. The outdoor-side panel portion 232 is disposed on the outdoor side. The indoor-side panel portion 231 extends upward from the indoor-side edge of the lower panel portion 233. The indoor-side protruding panel portion 234 extends indoors from the upper edge of the lower panel portion 233. The outdoor side plate portion 232 extends downward from the outdoor-side edge of the lower plate portion 233. The drip edge mounting portion 235 extends indoors from the lower edge of the outdoor side plate portion 232 and downward from the indoor-side end portion. The indoor side rail 236 and the outdoor side rail 237 extend upward from the middle portion of the lower plate portion 233 in the indoor / outdoor direction. The indoor side rail 236 is positioned indoors relative to the outdoor side rail 237.

[0014] As shown in Figures 5 and 6, the first existing vertical frame 241 and the second existing vertical frame 242 each have an indoor side panel portion 243, an outdoor side panel portion 244, an intermediate panel portion 245, an outer panel portion 246, and an indoor side protruding panel portion 247. The indoor side panel portion 243, the outdoor side panel portion 244, and the intermediate panel portion 245 have panel surfaces facing the indoor / outdoor direction. The outer panel portion 246 and the indoor side protruding panel portion 247 have panel surfaces facing the left / right direction. The indoor side panel portion 243 is disposed on the indoor side. The outdoor side panel portion 244 is disposed on the outdoor side. The outer panel portion 246 is disposed between the indoor side panel portion 243 and the outdoor side panel portion 244. The indoor side edge of the outer panel portion 246 is connected to the middle portion of the indoor side panel portion 243 in the left / right direction. The outdoor edge of the outer plate portion 246 is connected to the left-right middle portion of the outdoor side plate portion 244. The middle plate portion 245 extends inward in the left-right direction from the indoor-outdoor middle portion of the outer plate portion 246. The middle plate portion 245 of the first existing vertical frame 241 is positioned outdoors relative to the indoor-outdoor center of the outer plate portion 246. The middle plate portion 245 of the second existing vertical frame 242 is positioned indoors relative to the indoor-outdoor center of the outer plate portion 246. The indoor side protruding plate portion 247 extends indoors from the left-right middle portion of the indoor side plate portion 243. The indoor side protruding plate portion 247 is positioned at a position overlapping with the outer plate portion 246 in the indoor-outdoor direction.

[0015] As shown in Figures 1 and 2, the new frame 31 has a new upper frame 4, a new lower frame 5, and a pair of new vertical frames 6, 7. The new upper frame 4 and the new lower frame 5 extend in the left-right direction. The new upper frame 4 and the new lower frame 5 each have approximately the same cross-sectional shape throughout the left-right direction. The pair of new vertical frames 6, 7 extend in the up-down direction. The pair of new vertical frames 6, 7 each have approximately the same cross-sectional shape throughout the up-down direction. Of the pair of new vertical frames 6, 7, the new vertical frame 6 located on one side in the left-right direction, that is, the left side as viewed from the indoor side, is referred to as the first new vertical frame 6, and the new vertical frame 7 located on the other side in the left-right direction, that is, the right side as viewed from the indoor side, is referred to as the second new vertical frame 7.

[0016] As shown in FIG. 3 , the new upper frame 4 includes a metal member 41, a first resin member 42, and a second resin member 43. The metal member 41 includes an indoor-side panel portion 411, an outdoor-side panel portion 412, an intermediate panel portion 413, an upper panel portion 414, and an indoor-side protruding panel portion 415. The indoor-side panel portion 411, the outdoor-side panel portion 412, and the intermediate panel portion 413 have panel surfaces facing the indoor / outdoor direction. The upper panel portion 414 and the indoor-side protruding panel portion 415 have panel surfaces facing the up-down direction. The indoor-side panel portion 411 extends downward from the indoor-side edge of the upper panel portion 414. The outdoor-side panel portion 412 extends downward from the outdoor-side edge of the upper panel portion 414. The intermediate panel portion 413 extends downward from a middle portion of the upper panel portion 414 in the indoor / outdoor direction. The indoor side protruding plate portion 415 extends indoors from the corner between the upper plate portion 414 and the indoor side plate portion 411. The upper surface of the upper plate portion 414 and the upper surface of the indoor side protruding plate portion 415 are arranged flush with each other. The upper frame 321 of the inner shoji screen 32 is arranged between the indoor side plate portion 411 and the intermediate plate portion 413. The upper frame 331 of the outer shoji screen 33 is arranged between the outdoor side plate portion 412 and the intermediate plate portion 413. The indoor side plate portion 411 guides the inner shoji screen 32 to slide left and right. The intermediate plate portion 413 guides the outer shoji screen 33 to slide left and right.

[0017] An airtight material 46 is attached to the top of the upper plate portion 414. The airtight material 46 protrudes upward from the upper plate portion 414. The tip of the airtight material 46 is in contact with the main body 11 on the outdoor side of the existing upper frame 22. The metal member 41 is fixed to the existing upper frame 22 via a sealing material 44. The gap between the existing upper frame 22 and the new upper frame 4 is sealed by the sealing material 44.

[0018] The first resin member 42 is attached to the indoor side of the indoor side panel portion 411. The first resin member 42 has a lower panel portion 421 and an upper protruding panel portion 422. The lower panel portion 421 is attached to the lower end of the indoor side panel portion 411. The lower panel portion 421 protrudes indoors from the lower end of the indoor side panel portion 411. The upper protruding panel portion 422 extends upward from the middle of the lower panel portion 421 in the indoor / outdoor direction and further extends upward in an oblique direction toward the outdoor side. The upper end of the lower panel portion 421 is in contact with the indoor side surface of the indoor side panel portion 411. The lower panel portion 421 is arranged below the indoor side protruding panel portion 225 of the existing upper frame 22. The second resin member 43 is a resin frame. The second resin member 43 is arranged to seal the gap between the lower panel portion 421 and the indoor side protruding panel portion 225. The second resin member 43 and the lower plate portion 421 are fixed together with screws 101 .

[0019] The blocking material 44 has an inner plate portion 441, an indoor-side facing piece 442, and an outdoor-side facing piece 443. The inner plate portion 441 is flat. The plate surface of the inner plate portion 441 faces the vertical direction. The plate surfaces of the indoor-side facing piece 442 and the outdoor-side facing piece 443 face the indoor-outdoor direction. The indoor-side facing piece 442 protrudes upward from a position slightly outdoors relative to the indoor-side end of the inner plate portion 441. The outdoor-side facing piece 443 protrudes upward from a middle portion of the inner plate portion 441 in the indoor-outdoor direction. The inner plate portion 441 overlaps the upper plate portion 414 and the indoor-side protruding plate portion 415 of the metal member 41. The indoor-side end of the inner plate portion 441 is positioned above the indoor-side end of the indoor-side protruding plate portion 415. The outdoor end of the inner plate portion 441 is located above the middle portion of the upper plate portion 414 in the indoor / outdoor direction, and is located closer to the outdoor side than the middle plate portion 413. The inner plate portion 441 of the blocking material 44 and the upper plate portion 414 of the metal member 41 are fixed from below with screws 102.

[0020] The newly installed upper frame 4 is fixed to the existing upper frame 22 as follows. The indoor-side facing piece 442 and the outdoor-side facing piece 443 of the sealing material 44 are inserted from below between the indoor-side panel portion 221 and the outdoor-side panel portion 222 of the existing upper frame 22. The indoor-side facing piece 442 is positioned on the outdoor side of the indoor-side panel portion 221. The outdoor-side facing piece 443 is positioned on the indoor side of the outdoor-side panel portion 222. The sealing material 44 is fixed to the newly installed upper frame 4 with screws. The indoor-side facing piece 442 and the indoor-side panel portion 221 are fixed from the indoor side with screws 103. The outdoor-side facing piece 443 and the outdoor side panel portion 222 are fixed from the outdoor side with screws 104.

[0021] At least one of the indoor side facing piece 442 and the indoor side panel portion 221, and the outdoor side facing piece 443 and the outdoor side panel portion 222 are in contact with each other. This closes the gap between the new upper frame 4 and the existing upper frame 22, preventing flames from penetrating through the gap between the new upper frame 4 and the existing upper frame 22 in the event of a fire.

[0022] As shown in FIG. 4 , the new lower frame 5 includes a metal member 51, a cover member 52, and a resin member 53. The metal member 51 includes an indoor-side panel 511, an outdoor-side panel 512, an upper panel 513, a lower panel 514, a first intermediate panel 515, a second intermediate panel 516, a third intermediate panel 517, an upper fixing portion 518, and a lower fixing portion 519. The upper panel 513 has a panel surface facing the vertical direction. Two protrusions 513a, 513b that protrude upward are formed at a middle portion of the upper panel 513 in the indoor-outdoor direction, spaced apart in the indoor-outdoor direction. The indoor panel 511 extends upward from the indoor-side edge of the upper panel 513. The indoor panel 511 is formed with a groove 511a that extends in the left-right direction and opens to the outdoor side. The upper fixing portion 518 extends indoors from the upper edge of the indoor side panel portion 511. The upper fixing portion 518 is arranged to overlap the indoor side protruding panel portion 234 of the existing sill 23. The upper fixing portion 518 is fixed to the indoor side protruding panel portion 234 with screws 105. In this embodiment, the indoor side edge of the upper fixing portion 518 is arranged closer to the outdoors than the indoor side edge of the indoor side protruding panel portion 234. In other words, the indoor side portion of the indoor side protruding panel portion 234 is not covered by the upper fixing portion 518. The indoor side portion of the indoor side protruding panel portion 234 may be covered by the upper fixing portion 518.

[0023] The upper plate portion 513 extends from the lower edge of the indoor side plate portion 511 to the outdoor side. The first intermediate plate portion 515 extends downward from the middle portion of the upper plate portion 513 in the indoor / outdoor direction. The second intermediate plate portion 516 extends from the lower edge of the first intermediate plate portion 515 to the outdoor side. The third intermediate plate portion 517 extends downward from the outdoor side edge of the second intermediate plate portion 516. A rail portion 55 along which the door rollers 33a of the outer shoji screen 33 run is formed at the corner between the second intermediate plate portion 516 and the third intermediate plate portion 517. The lower plate portion 514 extends from the lower edge of the third intermediate plate portion 517 to the outdoor side. The outdoor side plate portion 512 extends upward from the outdoor side edge of the lower plate portion 514. The lower fixing portion 519 has a first plate portion 519a extending indoors from the lower edge of the third intermediate plate portion 517, and a second plate portion 519b extending downward from the indoor end of the first plate portion 519a. The lower fixing portion 519 is fixed to the outdoor side plate portion 232 of the existing lower frame 23 via the reinforcing material 54.

[0024] The cover member 52 is made of resin. The cover member 52 is arranged along the upper surface of the upper plate portion 513 and the outdoor surface of the indoor side plate portion 511. The cover member 52 is provided in an area in the left-right direction of the upper plate portion 513 and the indoor side plate portion 511 where the inner shoji screen is not positioned in the closed state. In other words, the cover member 52 is arranged on one side in the left-right direction of the upper plate portion 513 and the indoor side plate portion 511. The cover member 52 has a first plate portion 521 and a second plate portion 522. The first plate portion 521 is arranged along the upper surface of the upper plate portion 513. The second plate portion 522 is arranged along the outdoor surface of the indoor side plate portion 511. The second plate portion 522 extends upward from the indoor side edge of the first plate portion 521. Two protruding portions 521a, 521b protruding downward are formed at a middle portion in the indoor / outdoor direction of the first plate portion 521, with a gap between them in the indoor / outdoor direction. The two protruding portions 521a, 521b are arranged on top of two protruding portions 513a, 513b of the upper plate portion 513 of the third intermediate plate portion 517. The indoor-side protruding portion 513a of the two protruding portions 521a, 521b of the cover member 52 and the indoor-side protruding portion 521a of the two protruding portions 521a, 521b of the third intermediate plate portion 517 mesh with each other. The outdoor-side protruding portion 513b of the two protruding portions 521a, 521b of the cover member 52 and the outdoor-side protruding portion 521b of the two protruding portions 521a, 521b of the third intermediate plate portion 517 mesh with each other. The second plate portion 522 has a protrusion 522a formed on the indoor side, which is inserted into a groove 511a in the indoor side plate portion 511. Two protrusions 521c and 521d protruding upward are formed at a distance from each other in the indoor / outdoor direction in the middle of the first plate portion 521. A rail member 56 along which the rollers 32a of the inner shoji screen 32 run is attached between the two protrusions 521c and 521d.

[0025] The resin member 53 covers from above the upper surface of the upper fixing portion 518 fixed to the indoor side protruding plate portion 234 of the existing lower frame 23, the portion of the upper surface of the indoor side protruding plate portion 234 of the existing lower frame 23 that is not covered by the upper fixing portion 518, the upper end of the indoor side plate portion 511 of the metal member 51, and the upper end of the second plate portion 522 of the cover member 52. Because the indoor side plate portion 511, the upper fixing portion 518, and the indoor side protruding plate portion 234 are covered by the resin member 53, they are not exposed to the indoor side.

[0026] The reinforcing member 54 is disposed between the outdoor side plate portion 232 of the existing lower frame 23 and the second plate portion 519b of the lower fixing portion 519 of the metal member 51. The reinforcing member 54 is a long member with a C-shaped cross section. The reinforcing member 54 is disposed so that it opens upward and extends in the left-right direction. The reinforcing member 54 is fixed to the outdoor side plate portion 232 of the existing lower frame 23 from the outdoor side with screws 106, and the lower fixing portion 519 of the metal member 51 is fixed to the reinforcing member 54 from the outdoor side with screws 107.

[0027] As shown in FIG. 5 , the first new vertical frame 6 has a metal member 61, a first resin member 62, and a second resin member 63. The first resin member 62 is a resin vertical frame. The metal member 61 has an outer plate portion 611, an outdoor side plate portion 612, a first protrusion 613, a second protrusion 614, a third protrusion 615, and a fourth protrusion 616. The outer plate portion 611 has a plate surface facing the left-right direction. The outdoor side plate portion 612 extends from the outdoor-side edge of the outer plate portion 611 to the other side in the left-right direction. The first protrusion 613, the second protrusion 614, the third protrusion 615, and the fourth protrusion 616 each protrude from the outer plate portion 611 to the other side in the left-right direction. The first protrusion 613, second protrusion 614, third protrusion 615, and fourth protrusion 616 are arranged in this order from the indoor side to the outdoor side at a distance. The first protrusion 613 is arranged on the outdoor side of the indoor end of the outer plate 611. The fourth protrusion 616 is arranged on the indoor side of the outdoor side plate 612 at a distance. The vertical frame 333 of the outer shoji screen 33 is arranged between the outdoor side plate 612 and the third protrusion 615.

[0028] An airtight material 65 is attached to one side in the left-right direction of the outer plate portion 611. The airtight material 65 protrudes from the outer plate portion 611 to one side in the left-right direction. The tip of the airtight material 65 contacts the body 11 on the outdoor side of the first existing vertical frame 241. The metal member 61 is fixed to the first existing vertical frame 241 via a blocking material 64.

[0029] The blocking material 64 is fixed to the first existing vertical frame 241 while being fixed to the metal member 61. The blocking material 64 is arranged on one side of the metal member 61 in the left-right direction. The blocking material 64 is made of metal. The blocking material 64 has an inner plate portion 641, an indoor-side facing piece 642, and an outdoor-side facing piece 643. The inner plate portion 641 is flat. The plate surface of the inner plate portion 641 faces the left-right direction. The plate surfaces of the indoor-side facing piece 642 and the outdoor-side facing piece 643 face the indoor-outdoor direction. The indoor-side facing piece 642 protrudes to one side in the left-right direction from the indoor-side end of the inner plate portion 641. The outdoor-side facing piece 643 protrudes to one side in the left-right direction from the middle part of the inner plate portion 641 in the indoor-outdoor direction. The inner plate portion 641 overlaps one side in the left-right direction of the outer plate portion 611 of the metal member 61. The indoor end of the inner plate portion 641 is located on one side in the left-right direction near the indoor end of the outer plate portion 611. The outdoor end of the inner plate portion 641 is located closer to the indoor side than the outdoor end of the outer plate portion 611. The inner plate portion 641 of the blocking material 64 and the outer plate portion 611 of the metal member 61 are fixed from the other side in the left-right direction with screws 108.

[0030] The first new vertical frame 6 is fixed to the first existing vertical frame 241 as follows. The indoor side facing piece 642 and the outdoor side facing piece 643 of the sealing material 64 are inserted from the other left-right side between the indoor side panel portion 243 and the outdoor side panel portion 244 of the first existing vertical frame 241. The indoor side facing piece 642 is positioned on the outdoor side of the indoor side panel portion 243. The outdoor side facing piece 643 is positioned on the indoor side of the outdoor side panel portion 244. The sealing material 64 is fixed to the first new vertical frame 6 with screws. The indoor side facing piece 642 and the indoor side panel portion 243 are fixed from the indoor side with screws 109. The outdoor side facing piece 643 and the outdoor side panel portion 244 are fixed from the outdoor side with screws 110.

[0031] At least one of the indoor side facing piece 642 and the indoor side panel portion 243, and the outdoor side facing piece 643 and the outdoor side panel portion 244 are in contact with each other. This closes the gap between the first new vertical frame 6 and the first existing vertical frame 241, preventing flames from penetrating through the gap between the first new vertical frame 6 and the first existing vertical frame 241 in the event of a fire.

[0032] The first resin member 62 is disposed on the indoor side of the other left-right side of the metal member 61. The first resin member 62 has a hollow forming portion 621, an angle portion 622, a first fixing portion 623, a second fixing portion 624, and a third fixing portion 625. The hollow forming portion 621 is formed with a first hollow portion 62a, a second hollow portion 62b, and a third hollow portion 62c. The first hollow portion 62a and the second hollow portion 62b are arranged in the indoor-outdoor direction. The first hollow portion 62a is disposed on the indoor side of the second hollow portion 62b. The third hollow portion 62c is disposed on the other left-right side of the first hollow portion 62a and the second hollow portion 62b, i.e., on the inner side in the left-right direction. The first hollow portion 62a and the second hollow portion 62b are outer hollow portions. The third hollow portion 62c is an inner hollow portion.

[0033] The hollow forming portion 621 has an outer peripheral wall portion 626, a first partition wall 627, and a second partition wall 628. The outer peripheral wall portion 626 is provided on the outer periphery of the hollow forming portion 621. The first partition wall 627 is a wall portion that partitions the interior of the outer peripheral wall portion 626 in the left-right direction. The first partition wall 627 extends in the indoor / outdoor direction. The first hollow portion 62a and the second hollow portion 62b are located on one left-right side of the first partition wall 627, i.e., on the outer side in the left-right direction. The third hollow portion 62c is located on the other left-right side of the first partition wall 627, i.e., on the inner side in the left-right direction. The second partition wall 628 partitions one left-right side of the first partition wall 627 inside the outer peripheral wall portion 626 in the indoor / outdoor direction. The first hollow portion 62a is located on the indoor side of the second partition wall 628. A second hollow portion 62b is disposed on the outdoor side of the second partition wall 628.

[0034] The indoor / outdoor dimension of the third hollow portion 62c is set to be larger than the indoor / outdoor dimension of the vertical frame 333 of the outer shoji screen 33. The indoor / outdoor dimension of the third hollow portion 62c is set to be longer than the combined indoor / outdoor dimension of the first hollow portion 62a and the second hollow portion 62b. The indoor side portion of the first hollow portion 62a in the outer peripheral wall portion 626 and the indoor side portion of the third hollow portion 62c are arranged on the same plane facing the indoor / outdoor direction. The outdoor side portion of the third hollow portion 62c in the outer peripheral wall portion 626 is arranged closer to the outdoors than the outdoor side portion of the second hollow portion 62b.

[0035] The first fixing portion 623, the second fixing portion 624, and the third fixing portion 625 each protrude from the outer peripheral wall portion 626 to one side in the left-right direction. The first fixing portion 623, the second fixing portion 624, and the third fixing portion 625 are arranged in this order from the indoor side to the outdoor side at intervals. The first fixing portion 623 is fixed to the first protruding portion 613 of the metal member 61. The tip of the first fixing portion 623 and the tip of the first protruding portion 613 are hooked and fixed. The second fixing portion 624 is fixed to the second protruding portion 614 of the metal member 61. The tip of the second fixing portion 624 and the tip of the second protruding portion 614 are hooked and fixed. The third fixing portion 625 is fixed to the third protruding portion 615 of the metal member 61. The tip of the third fixing portion 625 and the tip of the third protruding portion 615 come into contact with each other.

[0036] The third hollow portion 62c is positioned so as to overlap in the indoor / outdoor direction with the resin frame 333a of the vertical frame 333 of the outer shoji screen 33 that closes the opening. The outdoor surface 626a of the outer peripheral wall portion 626 of the hollow forming portion 621 faces the indoor surface of the resin frame 333a of the vertical frame 333 of the outer shoji screen 33. The outdoor surface 626a of the outer peripheral wall portion 626 is provided with a fin portion 626b that protrudes toward the outdoor side. The fin portion 626b is made of soft resin. The fin portion 626b defines the space between the first resin member 62 and the vertical frame 333 of the outer shoji screen 33. The angle portion 622 extends indoors from a corner located on the indoor side of the outer peripheral wall portion 626 and on the other side in the left-right direction. The angle portion 622 is arranged at a distance from the other side in the left-right direction of the indoor side protruding plate portion 247 of the first existing vertical frame 241. The second resin member 63 is a resin frame. The second resin member 63 is provided so as to seal the gap between the angle portion 622 and the indoor side protruding plate portion 247. The second resin member 63 and the angle portion 622 are fixed with screws 111.

[0037] As shown in FIG. 6 , the second new vertical frame 7 includes a metal member 71, a first resin member 72, and a second resin member 73. The metal member 71 includes an outer plate portion 711, an outdoor side plate portion 712, a first protrusion portion 713, a second protrusion portion 714, a third protrusion portion 715, and a fourth protrusion portion 716. The shapes of the outer plate portion 711 and the outdoor side plate portion 712 are symmetrical in the left-right direction to the shapes of the outer plate portion 611 and the outdoor side plate portion 612 of the first new vertical frame 6. The first protrusion portion 713, the second protrusion portion 714, the third protrusion portion 715, and the fourth protrusion portion 716 each protrude from the outer plate portion 711 to one side in the left-right direction. The first protrusion portion 713, the second protrusion portion 714, the third protrusion portion 715, and the fourth protrusion portion 716 are arranged in this order from the indoor side to the outdoor side with a gap between them. The inner plate portion 741 of the blocking material 74 and the outer plate portion 711 of the metal member 71 are fixed from one side in the left-right direction with screws 112. The indoor side projection piece 742 and the indoor side plate portion 243 are fixed from the indoor side with screws 113. The outdoor side projection piece 743 and the outdoor side plate portion 244 are fixed from the outdoor side with screws 114. The vertical frame 323 of the inner shoji screen 32 is arranged between the second protrusion portion 714 and the fourth protrusion portion 716.

[0038] An airtight material 75 is attached to the other left-right side of the outer plate portion 711. The airtight material 75 protrudes from the outer plate portion 711 to the other left-right side. The tip of the airtight material 75 contacts the body 11 on the outdoor side of the second existing vertical frame 242. The second existing vertical frame 242 is fixed to the second new vertical frame 7 via a blocking material 74. The shape of the blocking material 74 is symmetrical in the left-right direction to the shape of the blocking material 64 of the first new vertical frame 6. The blocking material 74 is fixed to the second existing vertical frame 242 in the same way as the blocking material 64 of the first new vertical frame 6 is fixed to the first existing vertical frame 241.

[0039] The first resin member 72 does not have a hollow portion formed therein. The first resin member 72 has a fixing plate portion 721, an intermediate plate portion 722, and an angle portion 723. The fixing plate portion 721 has a plate surface facing the left-right direction. The fixing plate portion 721 is provided with a first protrusion portion 721a and a second protrusion portion 721b on the other side in the left-right direction. The first protrusion portion 721a is positioned on the indoor side of the second protrusion portion 721b. The first protrusion portion 713 of the metal member 71 is inserted between the first protrusion portion 721a and the second protrusion portion 721b. The second protrusion portion 721b and the first protrusion portion 713 are fixed by hooking their tip ends together.

[0040] The intermediate plate portion 722 extends from the indoor end of the fixed plate portion 721 to one side in the left-right direction. The outdoor surface 722a of the intermediate plate portion 722 faces the indoor surface of the resin frame 323a of the vertical frame 323 of the inner shoji screen 32. A fin portion 722b that protrudes to the outdoors is provided on the outdoor surface 722a of the intermediate plate portion 722. The fin portion 722b defines the space between the first resin member 72 and the resin frame 323a of the vertical frame 323 of the inner shoji screen 32. The angle portion 723 extends from one end of the intermediate plate portion 722 in the left-right direction to the indoor side. The angle portion 723 is arranged at a distance on one side in the left-right direction of the indoor-side protruding plate portion 247 of the second existing vertical frame 242. The second resin member 73 is a resin frame. The second resin member 73 is provided so as to close the gap between the angle portion 723 and the indoor side protruding plate portion 247. The second resin member 73 and the angle portion 723 are fixed with screws 115.

[0041] As shown in FIG. 7 , the blocking material 44 attached to the new upper frame 4 is attached not to the entire length of the new upper frame 4 in the left-right direction, i.e., the entire length, but only to the portions excluding both ends in the length direction. The auxiliary material 54 attached to the new lower frame 5 is attached not to the entire length of the new lower frame 5 in the left-right direction, i.e., the entire length, but only to the portions excluding both ends in the length direction. The blocking material 64 attached to the first new vertical frame 6 and the blocking material 74 attached to the second new vertical frame 7 are attached not to the entire length of the first new vertical frame 6 and the second new vertical frame 7 in the up-down direction, i.e., the entire length, but only to the portions excluding both ends in the length direction. The blocking material 44 attached to the new upper frame 4 and the auxiliary material 54 attached to the new lower frame 5 are arranged so as not to interfere with each other, and the blocking material 64 attached to the first new vertical frame 6 and the blocking material 74 attached to the second new vertical frame 7 are arranged so as not to interfere with each other.

[0042] As shown in Figures 1 and 2, the double-glazed glass 325, 335 of the inner shoji screen 32 and the outer shoji screen 33 are fitted into frames with glazing channels 326, 336 attached. The frames of the inner shoji screen 32 and the outer shoji screen 33 are formed with holes to ensure equal pressure between the inside and outside.

[0043] The following describes a method for renovating fittings. The shoji screen of the existing fitting 2 is removed. Sealing materials 44, 64, 74 are attached to the existing upper frame 22, first existing vertical frame 241, and second existing vertical frame 242. A supporting material 54 is attached to the existing lower frame 23. The metal member 41 of the new upper frame 4 is fixed to the sealing material 44. The metal member 51 of the new lower frame 5 is fixed to the supporting material 54 and the existing lower frame 23. The metal members 61, 71 of the first new vertical frame 6 and second new vertical frame 7 are fixed to the sealing materials 64, 74. The first resin member 42 is attached to the metal member 41 of the new upper frame 4, and the gap between the first resin member 42 and the indoor window frame is sealed with the second resin member 43. The cover member 52 and resin member 53 are attached to the metal member 51 of the new lower frame 5. First resin members 62, 72 are attached to the metal members 61, 71 of the first new vertical frame 6 and the second new vertical frame 7, and second resin members 63, 73 are used to seal the gap between the first resin members 62, 72 and the indoor window frame. When installing the first resin member 62 of the first new vertical frame 6, the third hollow portion 62c is positioned so that it overlaps the indoor side of the vertical frame 333 of the outer shoji screen 33 that closes the opening. This vertical frame 333 is the door end frame.

[0044] The first resin member 62 of the first new vertical frame 6 of the fitting 1 has a first hollow portion 62a and a second hollow portion 62b formed on the outside in the left-right direction, and a third hollow portion 62c formed on the inside in the left-right direction. The third hollow portion 62c is arranged overlapping the indoor side of the vertical frame 333 of the outer shoji screen 33. This improves the thermal insulation of the fitting 1. The indoor-outdoor dimension of the third hollow portion 62c arranged on the inside in the left-right direction of the first resin member 62 is larger than the indoor-outdoor dimension of the vertical frame 333 of the outer shoji screen 33. Only one third hollow portion 62c is provided on the inside in the left-right direction of the first resin member 62, with no hollow portions arranged in the indoor-outdoor direction. As a result, the distance between the wall portion located on the outdoor side of the third hollow portion 62c and the wall portion located on the indoor side can be made wider compared to when the indoor / outdoor dimension of the third hollow portion 62c is equal to or smaller than the indoor / outdoor dimension of the vertical frame 333 of the outer shoji screen 33.Therefore, even if sink marks occur on the inner left-right surfaces of the first resin member 62 due to the provision of walls to form the third hollow portion 62c, the distance between the sink marks is wide and the design is not impaired.

[0045] The first resin member 62 of the first new vertical frame 6 is provided on the first new vertical frame 6 located on the left side when viewed from the indoor side. That is, when the inner shoji screen 32 and the outer shoji screen 33 are fully closed and close the opening as shown in FIG. 2, the first resin member 62 of the first new vertical frame 6 is provided on the first new vertical frame 6 adjacent to the outer shoji screen 33. This provides a third hollow portion 62c on the indoor side of the vertical stile 333, which corresponds to the leading edge of the outer shoji screen 33 that closes the opening. This improves the thermal insulation of the fitting 1. The first resin member 62 of the first new vertical frame 6 can be provided with a larger indoor-outdoor dimension than the first resin member 72 of the second new vertical frame 7, which is provided on the indoor side of the vertical stile 323, which corresponds to the leading edge of the inner shoji screen 32 that closes the opening. This allows the third hollow portion 62c to be formed larger, improving thermal insulation and design.

[0046] The first resin member 62 of the first new vertical frame 6 has an angle portion 622 that is fixed to the second resin member 63, i.e., the resin frame, that is provided on the indoor side. This makes it possible to easily fix the second resin member 63 to the first resin member 62.

[0047] The first resin member 62 of the first new vertical frame 6 has a fin portion 626b extending toward the outer shoji screen 33. This allows the fin portion 626b to partition the space between the first new vertical frame 6 and the outer shoji screen 33, thereby improving thermal insulation. (Second embodiment) 8, in the fitting 1B according to the second embodiment, a metal reinforcing material 8 is fixed to the existing upper frame 22. A new upper frame 4 and a closing material 44 are fixed to the reinforcing material 8.

[0048] The reinforcing member 8 is a long member that extends across the entire left-right direction of the existing upper frame 22. The cross-sectional shape of the reinforcing member 8 is a hat shape that opens upward. The reinforcing member 8 has a lower plate portion 81, an indoor side plate portion 82, an outdoor side plate portion 83, an indoor side protrusion portion 84, and an outdoor side protrusion portion 85. The plate surface of the lower plate portion 81 faces the vertical direction. The indoor side plate portion 82 extends upward from the indoor side edge of the lower plate portion 81. The indoor side protrusion portion 84 protrudes indoors from the upper edge of the indoor side plate portion 82. The outdoor side plate portion 83 extends upward from the outdoor side edge of the lower plate portion 81. The outdoor side protrusion portion 85 protrudes outdoors from the upper end of the outdoor side plate portion 83. The vertical dimensions of the indoor side panel portion 82 and the outdoor side panel portion 83 are approximately the same as the vertical dimension of the intermediate panel portion 223 of the existing upper frame 22. The indoor / outdoor dimension of the auxiliary material 8 is smaller than the distance between the indoor side panel portion 221 and the outdoor side panel portion 222 of the existing upper frame 22.

[0049] The indoor side plate portion 82 and the indoor side protrusion portion 84 are inserted between the indoor side plate portion 221 and the intermediate plate portion 223 of the existing upper frame 22. The upper surface of the indoor side protrusion portion 84 is in contact with the lower surface of the upper plate portion 224 of the existing upper frame 22. The outdoor side plate portion 83 and the outdoor side protrusion portion 85 are inserted between the outdoor side plate portion 222 and the intermediate plate portion 223 of the existing upper frame 22. The upper surface of the outdoor side protrusion portion 85 is in contact with the lower surface of the upper plate portion 224 of the existing upper frame 22. The upper surface of the lower plate portion 81 is in contact with the lower edge of the intermediate plate portion 223. The lower plate portion 81 is fixed to the upper plate portion 224 of the existing upper frame 22 from below with screws 116 on both the outdoor side and indoor side of the intermediate plate portion 223. A gap is formed between the indoor side plate portion 82 of the reinforcing material 8 and the indoor side plate portion 221 of the existing upper frame 22. A gap is formed between the outdoor side plate portion 83 of the auxiliary material 8 and the outdoor side plate portion 222 of the existing upper frame 22.

[0050] The blocking material 44 overlaps the indoor side of the upper surface of the upper plate portion 414 of the metal member 41. The indoor side projection piece 442 of the blocking material 44 is inserted from below into the gap between the indoor side plate portion 82 of the auxiliary member 8 and the indoor side plate portion 221 of the existing upper frame 22. The outdoor side projection piece 443 of the blocking material 44 is inserted from below into the gap between the outdoor side plate portion 83 of the auxiliary member 8 and the outdoor side plate portion 222 of the existing upper frame 22. The inner plate portion 441 of the blocking material 44 is positioned below the lower plate portion 81 of the auxiliary member 8 via a spacer 80. The upper plate portion 414 of the metal member 41 and the inner plate portion 441 of the blocking material 44 are fixed to the lower plate portion 81 of the auxiliary member 8 from below with screws 117. At least one side of the indoor-side facing piece 442 and the outdoor-side facing piece 443 of the blocking material 44 comes into contact with either the existing upper frame 22 or the auxiliary material 8. This seals the gap between the new upper frame 4 and the existing upper frame 22. The spacers 80 are not provided along the entire length of the new upper frame 4, but are provided at multiple locations spaced apart along the length. The spacers 80 are piece members.

[0051] The renovation of building materials will be explained below. The new upper frame 4 is fixed to the existing upper frame 22 as follows. The auxiliary material 8 is fixed to the existing upper frame 22 with screws 116. The indoor-side facing piece 442 of the sealing material 44 is inserted into the gap between the indoor-side plate portion 82 of the auxiliary material 8 and the indoor-side plate portion 221 of the existing upper frame 22. The outdoor-side facing piece 443 of the sealing material 44 is inserted into the gap between the outdoor-side plate portion 83 of the auxiliary material 8 and the outdoor-side plate portion 222 of the existing upper frame 22. The new upper frame 4 is placed below the existing upper frame 22. The sealing material 44 is temporarily fixed onto the metal member 41. The upper plate portion 414 of the metal member 41 and the inner plate portion 441 of the sealing material 44 are fixed to the lower plate portion 81 of the auxiliary material 8 with screws 117 via spacers 80.

[0052] The new upper frame 4 has a first resin member 42B and a second resin member 43B that have different shapes from the first resin member 42 and the second resin member 43 of the first embodiment. The first resin member 42B has an angle portion 423 fixed to the lower end of the indoor side of the metal member 41, and a first sight plate portion 424 extending upward from a middle portion of the angle portion 423 in the indoor / outdoor direction. The second resin member 43B has a second sight plate portion 431 connected to the first sight plate portion 424 and extending upward, and a pressing plate portion 432 extending from the upper end of the second sight plate portion 431 to the indoor side.

[0053] The method of renovating the fitting 1B will be explained. The shoji screen of the existing fitting 2 is removed. Sealing materials 44, 64, 74 are attached to the existing upper frame 22, first existing vertical frame 241, and second existing vertical frame 242. A supporting material 54 is attached to the existing lower frame 23. The metal member 41 of the new upper frame 4 is fixed to the sealing material 44. The metal member 51 of the new lower frame 5 is fixed to the supporting material 54 and the existing lower frame 23. The metal members 61, 71 of the first new vertical frame 6 and second new vertical frame 7 are fixed to the sealing materials 64, 74. The first resin member 42 is attached to the metal member 41 of the new upper frame 4, and the gap between the first resin member 42 and the indoor window frame is sealed with the second resin member 43. The cover member 52 and resin member 53 are attached to the metal member 51 of the new lower frame 5. First resin members 62, 72 are attached to the metal members 61, 71 of the first new vertical frame 6 and the second new vertical frame 7, and second resin members 63, 73 are used to seal the gap between the first resin members 62, 72 and the indoor window frame. When installing the first resin member 62 of the first new vertical frame 6, the third hollow portion 62c is positioned so that it overlaps the indoor side of the vertical frame 333 of the outer shoji screen 33 that closes the opening. This vertical frame 333 is the door end frame.

[0054] The sealing material 44 of the fitting 1B is fixed to the existing upper frame 22 via the auxiliary material 8. By adjusting the position of the sealing material 44 relative to the auxiliary material 8, the sealing material 44 can be installed in the optimal position to seal the gap between the existing upper frame 22 and the new upper frame 4, preventing fire from penetrating in the event of a fire.

[0055] The sealing material 44 has an outdoor-side facing piece 443 that seals the gap between the existing upper frame 22 and the new upper frame 4 on the outdoor side, and an indoor-side facing piece 442 that seals the gap between the existing upper frame 22 and the new upper frame 4 on the indoor side of the outdoor-side facing piece. This makes it possible to seal the gap between the existing upper frame 22 and the new upper frame 4 on both the indoor and outdoor sides, efficiently preventing fire from penetrating in the event of a fire.

[0056] The indoor side facing piece 442 of the blocking material 44 is positioned outdoors relative to the indoor side panel portion 221 at the indoor side end of the existing upper frame 22. The outdoor side facing piece 443 is positioned indoors relative to the outdoor side panel portion 222 at the outdoor side end of the existing upper frame 22. In other words, the indoor side facing piece 442 and the outdoor side facing piece 443 of the blocking material 44 are positioned between the indoor side panel portion 221 and the outdoor side panel portion 222 of the existing upper frame 22. This allows the indoor side facing piece 442 and the outdoor side facing piece 443 of the blocking material 44 to be positioned so that they are not exposed. This can accommodate cases where the indoor side facing piece 442 and the outdoor side facing piece 443 of the blocking material 44 cannot be positioned outside the existing upper frame 22.

[0057] The indoor-side prospective piece 442 and the outdoor-side prospective piece 443 are integrally formed via the inner panel portion 441. This makes it easier to manage and install the components compared to when the indoor-side prospective piece 442 and the outdoor-side prospective piece 443 are separate components.

[0058] (Third embodiment) 9, the fitting 1C according to the third embodiment has a metal auxiliary material 8C and a closing material 44C that are different in shape from the fitting 1B according to the second embodiment. The new upper frame 4 and the closing material 44 are fixed to the auxiliary material 8.

[0059] The cross-sectional shape of the auxiliary material 8C is C-shaped. The auxiliary material 8C has an inner plate portion 861, an indoor-side facing piece 862, and an outdoor-side facing piece 863. The inner plate portion 861 is flat. The plate surface of the inner plate portion 861 faces the vertical direction. The plate surfaces of the indoor-side facing piece 862 and the outdoor-side facing piece 863 face the indoor-outdoor direction. The indoor-side facing piece 862 protrudes upward from a position slightly outdoors than the indoor-side edge of the inner plate portion 861. In other words, the indoor-side edge of the inner plate portion 861 protrudes indoors more than the indoor-side facing piece 862. The outdoor-side facing piece 863 protrudes upward from a position slightly indoors than the indoor-outdoor edge of the inner plate portion 861. That is, the indoor / outdoor edge of the inner plate portion 861 protrudes toward the outdoor side further than the outdoor-side projection piece 863. The indoor / outdoor dimension of the inner plate portion 861 is approximately the same as the indoor / outdoor dimension of the existing upper frame 22.

[0060] The indoor side facing piece 862 is arranged along the outdoor side surface of the indoor side panel portion 221 of the existing upper frame 22. The outdoor side facing piece 863 is arranged along the indoor side surface of the outdoor side panel portion 222 of the existing upper frame 22. The indoor side facing piece 862 and the indoor side panel portion 221 may be in contact with each other or may be arranged with a gap therebetween. The outdoor side facing piece 863 and the outdoor side panel portion 222 may be in contact with each other or may be arranged with a gap therebetween. The indoor side edge of the inner panel portion 861 is in contact from below with the lower edge of the indoor side panel portion 221 of the existing upper frame 22. The outdoor side edge of the inner panel portion 861 is in contact from below with the lower edge of the outdoor side panel portion 222 of the existing upper frame 22. The middle portion of the inner panel portion 861 in the indoor / outdoor direction is in contact from below with the lower edge of the intermediate panel portion 223 of the existing upper frame 22. The inner plate portion 861 is fixed to the upper plate portion 224 of the existing upper frame 22 from below with screws 118.

[0061] The blocking material 44C is composed of two members: an indoor-side member 451 and an outdoor-side member 452. The cross-sectional shape of the indoor-side member 451 is L-shaped. The indoor-side member 451 has an indoor-side lower plate portion 453 and an indoor-side facing piece 454. The plate surface of the indoor-side lower plate portion 453 faces the vertical direction. The indoor-side facing piece 454 extends upward from the indoor-side edge of the indoor-side lower plate portion 453. The cross-sectional shape of the outdoor-side member 452 is L-shaped. The outdoor-side member 452 has an outdoor-side lower plate portion 455 and an outdoor-side facing piece 456. The plate surface of the outdoor-side lower plate portion 455 faces the vertical direction. The outdoor-side facing piece 456 extends upward from the outdoor-side edge of the outdoor-side lower plate portion 455.

[0062] The outdoor-side lower plate portion 455 of the outdoor-side member 452 overlaps the indoor-side portion of the upper surface of the upper plate portion 414 of the metal member 41. The outdoor-side lower plate portion 455 overlaps the underside of the inner plate portion 861 via the spacer 80. The outdoor-side projection piece 456 overlaps the outdoor side of the outdoor-side plate portion 222 of the existing upper frame 22. The indoor-side lower plate portion 453 of the indoor-side member 451 overlaps the underside of the indoor-side member 451 of the metal member 41 of the new upper frame 4. The indoor-side projection piece 454 overlaps the indoor side of the upper plate portion 414 of the metal member 41 of the new upper frame 4, the spacer 80, the inner plate portion 861 of the auxiliary material 8C, and the indoor-side plate portion 221 of the existing upper frame 22. The upper plate portion 414 of the newly installed upper frame 4 and the outdoor-side lower plate portion 455 of the outdoor-side member 452 are fixed from below with screws 119 to the inner plate portion 861 of the auxiliary material 8. The indoor-side facing piece 454 is fixed from the indoor side with screws 120 to the indoor-side plate portion 221 of the existing upper frame 22 and the indoor-side facing piece 862 of the auxiliary material 8.

[0063] The new upper frame 4 is fixed to the existing upper frame 22 as follows: The auxiliary material 8C is fixed to the existing upper frame 22. The outdoor side member 452 is temporarily fixed to the metal member 41. The new upper frame 4 is placed below the existing upper frame 22. The upper surface of the outdoor side lower plate portion 455 of the outdoor side member 452 is overlapped below the inner plate portion 861 via the spacer 80, and the indoor side surface of the outdoor side projection piece 456 is overlapped on the outdoor side of the outdoor side plate portion 222 of the existing upper frame 22. The upper plate portion 414 of the metal member 41 and the outdoor side lower plate portion 455 of the outdoor side member 452 are fixed to the inner plate portion 861 of the auxiliary material 8C via the spacer 80 with screws 119. The indoor side lower plate portion 453 of the indoor side member 451 is placed on the underside of the indoor side protruding plate portion 415 of the metal member 41, and the indoor side projection piece 454 is placed on the indoor side of the indoor side plate portion 221 of the existing upper frame 22. The indoor side projection piece 454 is fixed to the indoor side plate portion 221 of the existing upper frame 22 and the indoor side projection piece 862 of the auxiliary material 8C with screws 120 from the indoor side.

[0064] The sealing material 44C of the fitting 1C is fixed to the existing upper frame 22 via the auxiliary material 8C. By adjusting the position of the sealing material 44C relative to the auxiliary material 8C, the sealing material 44C can be installed in the optimal position to seal the gap between the existing upper frame 22 and the new upper frame 4, preventing fire from penetrating in the event of a fire.

[0065] The sealing material 44C has an outdoor-side facing piece 456 that seals the gap between the existing upper frame 22 and the new upper frame 4 on the outdoor side, and an indoor-side facing piece 454 that seals the gap between the existing upper frame 22 and the new upper frame 4 on the indoor side of the outdoor-side facing piece 456. This makes it possible to seal the gap between the existing upper frame 22 and the new upper frame 4 on both the indoor and outdoor sides, efficiently preventing fire from penetrating in the event of a fire.

[0066] The indoor side facing piece 454 of the indoor side member 451 of the blocking material 44C is positioned indoors relative to the indoor side plate portion 221 at the indoor side end of the existing upper frame 22. The outdoor side facing piece 456 of the outdoor side member 452 is positioned outdoors relative to the outdoor side plate portion 222 at the outdoor side end of the existing upper frame 22. Because the indoor side facing piece 454 and the outdoor side facing piece 456 do not enter the interior of the existing upper frame 22, it is easy to fix the indoor side facing piece 454 and the outdoor side facing piece 456 to the existing upper frame 22.

[0067] The indoor-side prospect piece 454 and the outdoor-side prospect piece 456 are provided as separate members. After the outdoor-side prospect piece 456 of the outdoor-side member 452 fixed to the newly installed upper frame 4 is fixed to the existing upper frame 22, the indoor-side prospect piece 454 of the indoor-side member 451 is fixed to the existing upper frame 22 from the indoor side, which makes for easy installation. Because the distance between the indoor-side prospect piece 454 and the outdoor-side prospect piece 456 in the indoor / outdoor directions can be adjusted, the same form of sealing material 44C can be used for the existing upper frame 22 and the new upper frame 4 that have different indoor / outdoor dimensions.

[0068] (Fourth embodiment) As shown in FIG. 10, the fitting 1D according to the fourth embodiment has a blocking material 44D different from that of the third embodiment and a reinforcing material 8C similar to that of the third embodiment. The new upper frame 4 and the blocking material 44D are fixed to the reinforcing material 8C. The blocking material 44D is composed of two members: an indoor-side member 451D and an outdoor-side member 452D. The cross-sectional shape of the indoor-side member 451D is L-shaped. The indoor-side member 451D has an indoor-side lower plate portion 453D and an indoor-side facing piece 454D. The plate surface of the indoor-side lower plate portion 453D faces the vertical direction. The indoor-side facing piece 454D extends upward from the indoor-side edge of the indoor-side lower plate portion 453. The outdoor-side member 452D has a plurality of downward-protruding ribs 457 spaced apart in the indoor-outdoor direction. The outdoor member 452D, 457, which is located closest to the interior, is located closer to the exterior than the indoor edge of the outdoor lower plate 455D. The cross section of the outdoor member 452D is L-shaped. The outdoor member 452D has an outdoor lower plate 455D and an outdoor projection piece 456D. The plate surface of the outdoor lower plate 455D faces the vertical direction. The outdoor projection piece 456D extends upward from the outdoor edge of the outdoor lower plate 455D.

[0069] The outdoor-side lower plate portion 455D of the outdoor-side member 452D overlaps the upper surface of the upper plate portion 414 of the metal member 41. The outdoor-side lower plate portion 455D overlaps the underside of the inner plate portion 861 via the spacer 80. A rib 457 provided on the outdoor-side lower plate portion 455D contacts the upper surface of the upper plate portion 414 of the metal member 41. A gap is formed between the outdoor-side lower plate portion 455D and the upper plate portion 414 of the metal member 41. The outdoor-side projection piece 456D overlaps the outdoor side of the outdoor side plate portion 222 of the existing upper frame 22. The indoor-side lower plate portion 453 of the indoor-side member 451D overlaps the upper surface of the upper plate portion 414 of the metal member 41 of the new upper frame 4. The indoor-side lower plate portion 453D is located in the gap between the indoor-side portion of the outdoor-side lower plate portion 455D and the upper plate portion 414 of the metal member 41. The indoor-side lower plate portion 453D overlaps the indoor-side portion of the outdoor-side lower plate portion 455D in the vertical direction. The indoor-side projection piece 454D overlaps the spacer 80, the inner plate portion 861 of the auxiliary material 8C, and the indoor side of the indoor-side plate portion 221 of the existing upper frame 22. In the areas where the outdoor-side lower plate portion 455D and the indoor-side lower plate portion 453D do not overlap in the vertical direction, the upper plate portion 414 and the outdoor-side lower plate portion 455D of the new upper frame 4 are fixed from below to the inner plate portion 861 of the auxiliary material 8 with screws 121. In the area where the outdoor lower plate portion 455D and the indoor lower plate portion 453D overlap vertically, the upper plate portion 414 of the newly installed upper frame 4, the indoor lower plate portion 453D and the outdoor lower plate portion 455D are fixed to the inner plate portion 861 of the auxiliary material 8 from below with screws 122.

[0070] The new upper frame 4 is fixed to the existing upper frame 22 as follows: The auxiliary material 8C is fixed to the existing upper frame 22. The outdoor-side member 452D is temporarily fixed to the metal member 41. The upper surface of the outdoor-side lower plate portion 455D of the outdoor-side member 452D is opposed to the lower surface of the inner plate portion 861 via the spacer 80, and the indoor-side surface of the outdoor-side projection piece 456D is opposed to the outdoor-side surface of the outdoor-side plate portion 222 of the existing upper frame 22 and the outdoor-side edge of the inner plate portion 861 of the auxiliary material 8C. In the areas where the outdoor-side lower plate portion 455D and the indoor-side lower plate portion 453D do not overlap in the vertical direction, the upper plate portion 414 and the outdoor-side lower plate portion 455D of the new upper frame 4 are fixed from below to the inner plate portion 861 of the auxiliary material 8 with screws 121. The outdoor surface of the indoor side projection piece 454D is positioned opposite the indoor surface of the indoor side plate portion 221 of the existing upper frame 22, and is inserted between the spacer 80 and the indoor side lower plate portion 453D. In the area where the outdoor side lower plate portion 455D and the indoor side lower plate portion 453D overlap in the vertical direction, the upper plate portion 414, indoor side lower plate portion 453D, and outdoor side lower plate portion 455D of the new upper frame 4 are fixed from below to the inner plate portion 861 of the auxiliary material 8 with screws 122.

[0071] The sealing material 44D of the fitting 1D is fixed to the existing upper frame 22 via the auxiliary material 8C. By adjusting the position of the sealing material 44D relative to the auxiliary material 8C, the sealing material 44D can be installed in the optimal position to seal the gap between the existing upper frame 22 and the new upper frame 4, preventing fire from penetrating in the event of a fire.

[0072] The sealing material 44D has an outdoor-side facing piece 456D that seals the gap between the existing upper frame 22 and the new upper frame 4 on the outdoor side, and an indoor-side facing piece 454D that seals the gap between the existing upper frame 22 and the new upper frame 4 on the indoor side of the outdoor-side facing piece 456D. This makes it possible to seal the gap between the existing upper frame 22 and the new upper frame 4 on both the indoor and outdoor sides, efficiently preventing fire from penetrating in the event of a fire.

[0073] The indoor side facing piece 454D of the indoor side member 451D of the blocking material 44D is positioned indoors relative to the indoor side plate portion 221 at the indoor side end of the existing upper frame 22. The outdoor side facing piece 456D of the outdoor side member 452D is positioned outdoors relative to the outdoor side plate portion 222 at the outdoor side end of the existing upper frame 22. Because the indoor side facing piece 454D and the outdoor side facing piece 456D do not enter the interior of the existing upper frame 22, it is easy to fix the indoor side facing piece 454D and the outdoor side facing piece 456D to the existing upper frame 22.

[0074] The indoor-side projection piece 454D and the outdoor-side projection piece 456D are provided as separate members. Because the distance between the indoor-side projection piece 454D and the outdoor-side projection piece 456D in the indoor / outdoor directions can be adjusted, the same form of blocking material 44D can be used for existing upper frames 22 and new upper frames 4 that have different indoor / outdoor dimensions.

[0075] (Fifth embodiment) As shown in Figure 11, a fitting 1E according to the fifth embodiment has a blocking material 44E different from those of the above embodiments and a reinforcing material 8C the same as in the third embodiment. The blocking material 44E of the fifth embodiment has an indoor-side member 451E and an outdoor-side member 452E. The outdoor-side lower plate portion 455E of the outdoor-side member 452E has a shorter dimension in the indoor-outdoor direction than the outdoor-side lower plate portion 455D of the outdoor-side member 452D of the blocking material 44D of the third embodiment. When the outdoor-side lower plate portion 455E is attached onto the metal member 41, the indoor-side edge is positioned closer to the outdoor side than the indoor-side edge of the metal member 41. In the fitting 1E according to the fifth embodiment, a spacer 80 is provided between the outdoor-side lower plate portion 455E of the outdoor-side member 452E and the inner plate portion 861 of the auxiliary member 8C, and a spacer 80 is also provided between the portion of the metal member 41 of the new upper frame 4 that is indoors relative to the outdoor-side lower plate portion 455E and the inner plate portion 861 of the auxiliary member 8C. The indoor-side member 451E has an indoor-side lower plate portion 453E disposed below the upper plate portion 414, and an indoor-side projection piece 454E disposed on the indoor side of the upper plate portion 414 of the new upper frame 4, the spacer 80, and the indoor-side plate portion 221 of the existing upper frame 22. The indoor-side lower plate portion 453E is fixed from below to the upper plate portion 414 of the new upper frame 4 with screws 124.

[0076] The new upper frame 4 is fixed to the existing upper frame 22 as follows: The auxiliary material 8C is fixed to the existing upper frame 22. The outdoor-side member 452E of the blocking material 44E is temporarily fixed to the new upper frame 4. The new upper frame 4 and the outdoor-side member 452E are fixed to the auxiliary material 8C from below with screws 123, and the new upper frame 4 is fixed to the auxiliary material 8C on the indoor side of the outdoor-side member 452E. The indoor-side member 451E is installed on the indoor side of the new upper frame 4, and the indoor-side lower plate portion 453E is fixed to the upper plate portion 414 of the metal member 41 from below with screws 124.

[0077] The indoor-side projection piece 454E and the outdoor-side projection piece 456E are provided as separate members. Because the distance between the indoor-side projection piece 454E and the outdoor-side projection piece 456E in the indoor / outdoor directions can be adjusted, the same form of blocking material 44E can be used for existing upper frames 22 and new upper frames 4 that have different indoor / outdoor dimensions.

[0078] The sealing material 44E of the fitting 1E is fixed to the existing upper frame 22 via the auxiliary material 8C. By adjusting the position of the sealing material 44E relative to the auxiliary material 8C, the sealing material 44E can be installed in the optimal position to seal the gap between the existing upper frame 22 and the new upper frame 4, preventing fire from penetrating in the event of a fire.

[0079] The blocking material 44E has an outdoor-side facing piece 456E that blocks the gap between the existing upper frame 22 and the new upper frame 4 on the outdoor side, and an indoor-side facing piece 454E that blocks the gap between the existing upper frame 22 and the new upper frame 4 on the indoor side of the outdoor-side facing piece 456E. This makes it possible to block the gap between the existing upper frame 22 and the new upper frame 4 on both the indoor and outdoor sides, efficiently preventing fire from penetrating in the event of a fire.

[0080] The indoor side prospect piece 454E of the indoor side member 451E of the blocking material 44E is positioned indoors relative to the indoor side plate portion 221 at the indoor side end of the existing upper frame 22. The outdoor side prospect piece 456E of the outdoor side member 452E is positioned outdoors relative to the outdoor side plate portion 222 at the outdoor side end of the existing upper frame 22. Because the indoor side prospect piece 454E and the outdoor side prospect piece 456E do not enter the interior of the existing upper frame 22, it is easy to fix the indoor side prospect piece 454E and the outdoor side prospect piece 456E to the existing upper frame 22.

[0081] (Sixth embodiment) As shown in FIG. 12 , in the fitting 1F according to the sixth embodiment, the auxiliary member 8F is composed of two members. The auxiliary member 8F has an indoor-side member 871 and an outdoor-side member 872. The indoor-side member 871 is provided along the outdoor surface of the indoor-side panel portion 221 of the existing upper frame 22. The outdoor-side member 872 is provided along the indoor surface of the outdoor-side panel portion 222 of the existing upper frame 22. The indoor-side member 871 and the outdoor-side member 872 are shaped members. The indoor-side member 871 and the outdoor-side member 872 have shapes symmetrical in the indoor-outdoor direction. The fitting 1F has a sealing member 44F fixed to the metal member 41 of the new upper frame 4. The sealing member 44F is fixed to each of the indoor-side member 871 and the outdoor-side member 872. The indoor-side member 871 and the outdoor-side member 872 do not have to have shapes symmetrical in the indoor-outdoor direction.

[0082] The indoor side component 871 has an existing frame fixing portion 873, a new frame fixing portion 874, and a connection portion 875. The existing frame fixing portion 873 is fixed to the existing upper frame 22. A blocking material 44F fixed to the new upper frame 4 is fixed to the new frame fixing portion 874. The connection portion 875 connects the existing frame fixing portion 873 and the new frame fixing portion 874.

[0083] The existing frame fixing portion 873 is positioned along the vicinity of the indoor end of the underside of the upper plate portion 224 of the existing upper frame 22. The existing frame fixing portion 873 is fixed to the upper plate portion 224 of the existing upper frame 22 with screws 125. The new frame fixing portion 874 is positioned below the indoor side plate portion 221 of the existing upper frame 22. The indoor side surface of the new frame fixing portion 874 and the indoor side surface of the indoor side plate portion 221 of the existing upper frame 22 are positioned flush with each other. The indoor side facing piece 442F of the blocking material 44F fixed to the new upper frame 4 is fixed to the new frame fixing portion 874 with screws 128. The connection portion 875 has a first connection portion 875a and a second connection portion 875b. The first connection portion 875a extends downward from the indoor side end of the new frame fixing portion 874. The first connection portion 875a is arranged on the outdoor side of the indoor side panel portion 221 of the existing upper frame 22. The second connection portion 875b extends indoors from the lower end of the first connection portion 875a and is connected to the upper end of the new frame fixing portion 874. The second connection portion 875b is arranged below the indoor side panel portion 221 of the existing upper frame 22.

[0084] The outdoor-side member 872 has an existing frame fixing portion 876, a new frame fixing portion 877, and a connecting portion 878, which are symmetrical in the indoor / outdoor direction to the existing frame fixing portion 873, the new frame fixing portion 874, and the connecting portion 875 of the indoor-side member 871. The connecting portion 878 has a first connecting portion 878a and a second connecting portion 878b, which are symmetrical in the indoor / outdoor direction to the first connecting portion 875a and the second connecting portion 875b of the connecting portion 875 of the indoor-side member 871. The existing frame fixing portion 876 is disposed along the vicinity of the outdoor-side end of the underside of the upper plate portion 224 of the existing upper frame 22. The existing frame fixing portion 876 is fixed to the upper plate portion 224 of the existing upper frame 22 with screws 126. The outdoor-side front panel 443F of the blocking material 44F fixed to the new upper frame 4 is fixed to the new frame fixing portion 877 with screws 129. The new frame fixing portion 877 is arranged below the outdoor side panel portion 222 of the existing upper frame 22.

[0085] The blocking material 44F has an inner plate portion 441F, an indoor side facing piece 442F, and an outdoor side facing piece 443F. The inner plate portion 441F is positioned below the existing upper frame 22 with the plate surface facing in the vertical direction. The indoor side facing piece 442F extends upward from the indoor side end of the inner plate portion 441F. The outdoor side facing piece 443F extends upward from a position closer to the indoor side than the outdoor side end of the upper plate portion 414. The inner plate portion 441F is arranged along the upper surface of the upper plate portion 414 of the new upper frame 4. The inner plate portion 441F and the upper plate portion 414 of the new upper frame 4 are fixed together with screws 127.

[0086] The new upper frame 4 is fixed to the existing upper frame 22 as follows: The auxiliary material 8F is fixed to the existing upper frame 22. The indoor side projection piece 442F of the sealing material 44 is positioned so that it overlaps the indoor side of the new frame fixing portion 874 of the indoor side member 871 of the auxiliary material 8F, and is fixed from the indoor side with screws 127. The sealing material 44 is temporarily fixed to the new upper frame 4. The outdoor side projection piece 443F of the sealing material 44 is positioned so that it overlaps the outdoor side of the new frame fixing portion 874 of the outdoor side member 872 of the auxiliary material 8F, and is fixed from the outdoor side with screws 128. The gap between the existing upper frame 22 and the new upper frame 4 is sealed by the auxiliary material 8F and the sealing material 44.

[0087] When the auxiliary member 8F is composed of two members, an indoor-side member 871 and an outdoor-side member 872, the configurations of the indoor-side member 871 and the outdoor-side member 872 may be appropriately set according to the shape and installation position of the new upper frame 4. For example, as shown in FIG. 13 , the new frame fixing portions 884, 887 may be provided on the outdoor side relative to the existing frame fixing portions 883, 886, as in the indoor-side member 881 and the outdoor-side member 882 of the auxiliary member 8G. In this case, the second connecting portions 885b, 888b of the connecting portions 885, 888 protrude outdoors from the lower ends of the first connecting portions 885a, 888a. The existing frame fixing portion 883 of the indoor-side member 881 is fixed to the upper plate portion 224 of the existing upper frame 22 with a screw 130. The existing frame fixing portion 886 of the outdoor-side member 882 is fixed to the upper plate portion 224 of the existing upper frame 22 with a screw 131. The new frame fixing portion 884 of the indoor side member 881 and the indoor side prospect piece 442F are fixed from the indoor side with screws 133. The new frame fixing portion 884 of the outdoor side member 882 and the outdoor side prospect piece 443F are fixed from the outdoor side with screws 134.

[0088] For example, as in the indoor-side member 891 and outdoor-side member 892 of the auxiliary material 8H shown in Figure 14, the new frame fixing portions 894, 897 may be provided on the outdoor side relative to the existing frame fixing portions 893, 896. In this case, the second connecting portions 895b, 898b of the connecting portions 895, 898 protrude indoors from the lower ends of the first connecting portions 895a, 898a. The existing frame fixing portion 893 of the indoor-side member 891 is fixed to the upper plate portion 224 of the existing upper frame 22 with screws 135. The existing frame fixing portion 896 of the outdoor-side member 892 is fixed to the upper plate portion 224 of the existing upper frame 22 with screws 136. The new frame fixing portion 894 of the indoor-side member 891 and the indoor-side projection piece 442F are fixed from the indoor side with screws 138. The new frame fixing portion 894 of the outdoor side member 892 and the outdoor side projection piece 443F are fixed with screws 139 from the outdoor side.

[0089] As shown in Fig. 1, the door and window 1F is constructed of two auxiliary members 8F. This allows the blocking member 44F to be fixed to the auxiliary member 8F without the indoor-side facing piece 442F and the outdoor-side facing piece 443F interfering with the frame 11, even if the distance from the bottom end of the existing upper frame 22 to the frame 11 is short.

[0090] The sealing material 44F of the fitting 1F is fixed to the existing upper frame 22 via the auxiliary material 8F. By adjusting the position of the sealing material 44F relative to the auxiliary material 8F, the sealing material 44F can be installed in the optimal position to seal the gap between the existing upper frame 22 and the new upper frame 4, preventing fire from penetrating in the event of a fire.

[0091] The sealing material 44F has an outdoor-side facing piece 443F that seals the gap between the existing upper frame 22 and the new upper frame 4 on the outdoor side, and an indoor-side facing piece 442F that seals the gap between the existing upper frame 22 and the new upper frame 4 on the indoor side of the outdoor-side facing piece 443F. This makes it possible to seal the gap between the existing upper frame 22 and the new upper frame 4 on both the indoor and outdoor sides, efficiently preventing fire from penetrating in the event of a fire.

[0092] (Seventh embodiment) As shown in Figure 15, the fitting 1I according to the seventh embodiment has an attachment 9 provided between the existing sill 25 and the metal member 51 of the new sill 5. The attachment 9 is provided to position the new sill 5 higher than if it were directly fixed to the existing sill 25. The attachment 9 is provided so as to extend across the entire left-right direction of the new sill 5.

[0093] The existing lower frame 25 of the seventh embodiment has an indoor side panel portion 251, an outdoor side panel portion 252, a lower panel portion 253, a gutter mounting portion 255, an indoor side rail 256, an outdoor side rail 257, and an angle portion 258. The lower panel portion 253 is provided at the lower end of the existing lower frame 25. The indoor side panel portion 251 extends upward from the indoor side edge of the outdoor side panel portion 252. The outdoor side panel portion 252 extends upward from the outdoor side edge of the lower panel portion 253. The upper edge of the indoor side panel portion 251 is located higher than the upper edge of the outdoor side panel portion 252. The indoor side rail 256 and the outdoor side rail 257 extend upward from the middle portion of the lower panel portion 253 in the indoor / outdoor direction. The indoor side rail 256 is located indoors relative to the outdoor side rail 257. The upper edge 256a of the indoor side rail 256 is positioned higher than the upper edge of the outdoor side rail 257. The upper edge 256a of the indoor side rail 256 is positioned at approximately the same height as the upper edge of the indoor side plate portion 251. The angle portion 258 is joined to the indoor side of the outdoor side plate portion 252. The angle portion 258 has a sight plate portion 258a and an indoor side protruding plate portion 258b. The sight plate portion 258a is positioned along the indoor side surface of the outdoor side plate portion 252. The indoor side protruding plate portion 258b protrudes to the outdoor side from the upper end of the sight plate portion 258a. The upper surface of the indoor side protruding plate portion 258b is positioned at approximately the same height as the upper edge of the outdoor side plate portion 252 and the upper edge 256a of the indoor side rail 256. The indoor side protruding plate portion 258b is placed on the lower edge member 14 provided along the lower edge of the opening on the indoor side of the opening.

[0094] The attachment 9 has an indoor-side fixing portion 91, an outdoor-side fixing portion 92, and a connecting portion 93. The indoor-side fixing portion 91 has a lower plate portion 911, an upper plate portion 912, and a connecting plate portion 913. The lower plate portion 911 and the upper plate portion 912 are arranged with their plate surfaces facing up and down. The connecting plate portion 913 connects the outdoor-side edge of the lower plate portion 911 to the outdoor-side edge of the upper plate portion 912. The outdoor-side fixing portion 92 is flat. The plate surface of the outdoor-side fixing portion 92 faces the indoor / outdoor direction. The connecting portion 93 connects the corner between the lower plate portion 911 and the connecting plate portion 913 of the indoor-side fixing portion 91 to the upper edge of the outdoor-side fixing portion 92. The connecting portion 93 has a first plate portion 931 extending toward the outdoor side from the corner between the lower plate portion 911 and the connecting plate portion 913, a second plate portion 932 extending downward from the outdoor-side edge of the first plate portion 931, a third plate portion 933 extending toward the outdoor side from the lower edge of the second plate portion 932, a fourth plate portion 934 extending downward from the outdoor-side edge of the third plate portion 933, and a fifth plate portion 935 extending toward the outdoor side from the lower edge of the fourth plate portion 934. The outdoor-side edge of the fifth plate portion 935 is connected to the upper edge of the outdoor-side fixing portion 92. A resin cover 94 is attached to the indoor-side end of the attachment 9 to seal the gap between the lower plate portion 911 and upper plate portion 912 of the indoor-side fixing portion 91.

[0095] As shown in Figures 15 to 17, the attachment 9 is fixed to the existing sill 25 and lower edge member 14 as follows. The indoor-side fixing portion 91 is placed on the lower edge member 14 and the upper part of the indoor-side protruding plate portion 238b of the angle portion 258. The lower plate portion 911 of the indoor-side fixing portion 91 overlaps the indoor-side protruding plate portion 238b of the angle portion 258 with a waterproof sheet 941 interposed between them. The outdoor-side fixing portion 92 overlaps the outdoor side of the outdoor-side plate portion 252 of the existing sill 25. The connecting portion 93 is positioned above the existing sill 25. The lower surface of the first plate portion 931 of the connecting portion 93 contacts the upper end portion 251a of the indoor-side plate portion 251 of the existing sill 25 with the waterproof sheet 941 interposed between them. The lower surface of the first plate portion 931 of the connecting portion 93 contacts the indoor-side plate portion 251 of the existing sill 25 and the upper edge portion 256a of the indoor-side rail 256. The first plate portion 931 of the connecting portion 93 is the upper end contact portion. The outdoor-side fixing portion 92 is arranged along the outdoor surface of the outdoor-side plate portion 252 of the existing sill 25. The lower plate portion 911 of the indoor-side fixing portion 91 is fixed to the indoor-side protruding plate portion 258b of the angle portion 258 and the lower edge member 14 from above with screws 140. The outdoor-side fixing portion 92 is fixed to the outdoor-side plate portion 252 of the existing sill 25 from the outdoor side with screws 141. The lower plate portion 911 of the indoor-side fixing portion 91 may be fixed to only one of the existing sill 25 or the lower edge member 14.

[0096] The new upper frame 4 is fixed to the attachment 9 as follows. The upper fixing portion 518 of the metal member 51 of the new lower frame 5 overlaps the upper plate portion 912 of the indoor-side fixing portion 91 with a waterproof sheet 942 interposed between them. The second plate portion 519b of the lower fixing portion 519 of the metal member 51 overlaps the outdoor side of the outdoor-side fixing portion 92. The upper fixing portion 518 of the metal member 51 is fixed to the upper plate portion 912 of the indoor-side fixing portion 91 from above with screws 142. The second plate portion 519b of the lower fixing portion 519 of the metal member 51 is fixed to the outdoor-side fixing portion 92 from the outdoor side with screws 143. This screw 143 fixes the second plate portion 519b to the outdoor-side fixing portion 92 above the screw 141 that fixes the outdoor-side fixing portion 92 to the outdoor-side plate portion 252 of the existing lower frame 25. A drip rack mounting member 57 is attached to the second plate portion 519b of the lower fixing portion 519. The upper fixing portion 518 of the metal member 51, the indoor-side plate portion 511, the upper plate portion 912 of the indoor-side fixing portion 91, and the outdoor-side end portion of the cover member 52 are covered from above by a resin member 53I.

[0097] 18 and 19, both left-right end portions 91a of the indoor-side fixing portion 91 of the attachment 9 protrude further to both sides in the left-right direction than the outdoor-side fixing portion 92 and the connecting portion 93. For this reason, as shown in Fig. 18, the outdoor-side surfaces 913a of the connecting plate portions 913 at both left-right end portions 91a of the indoor-side fixing portion 91 are in contact with the indoor-side surfaces 243a of the indoor-side plate portions 243 of the first existing vertical frame 241 and the second existing vertical frame 242. See also Figs. 5 and 6 for the indoor-side surfaces 243a of the indoor-side plate portions 243 of the first existing vertical frame 241 and the second existing vertical frame 242.

[0098] A method for renovating fittings according to the seventh embodiment will now be described. An attachment 9 is fixed to the existing sill 25 and lower edge member 14. A new upper frame 4 is fixed on top of the attachment 9. When fixing the attachment 9 to the existing sill 25, the attachment 9 is brought into contact from above with the upper end 251a of the indoor-side panel portion 251, which is the indoor-side upper end of the existing sill 25, and the upper surface of the indoor-side protruding panel portion 258b of the angle portion 258. Both left and right end portions 91a of the indoor-side fixing portion 91 of the attachment 9 are brought into contact from the indoor side with the indoor-side surface 243a of the indoor-side panel portion 243, which is the indoor-side end of the first existing vertical frame 241 and the second existing vertical frame 242.

[0099] The lower plate portion 911 of the indoor side fixing portion 91 of the attachment 9 overlaps the indoor side protruding plate portion 238b of the angle portion 258 via a waterproof sheet 941, and the first plate portion 931 of the connection portion 93 overlaps the upper end portion 251a of the indoor side plate portion 251 of the existing lower frame 25 via the waterproof sheet 941. As a result, the load of the existing frame 21 fixed to the attachment 9 is transmitted to the existing lower frame 25 via the attachment 9.

[0100] Both left and right end portions 91a of the indoor-side fixing portion 91 of the attachment 9 protrude further to both sides in the left and right direction than the outdoor-side fixing portion 92 and the connecting portion 93, and the outdoor-side surface 913a of the connecting plate portion 913 contacts the indoor-side surface 243a of the indoor-side plate portion 243 of the first existing vertical frame 241 and the second existing vertical frame 242. As a result, when fixing the attachment 9 to the existing sill 25, by bringing the outdoor-side surface 413a of the connecting plate portion 913 into contact with the indoor-side surface 243a of the indoor-side plate portion 243 of the first existing vertical frame 241 and the second existing vertical frame 242, it becomes easy to position the attachment 9 in the indoor / outdoor direction and the attachment 9 does not move to the outdoor side, making installation easier.

[0101] The connection portion 93 of the attachment 9 is in contact with the upper edge portion 256a of the indoor side rail 256. As a result, the load of the existing frame 21 fixed to the attachment 9 is transmitted from the indoor side rail 256 to the existing lower frame 25 via the attachment 9.

[0102] A resin cover 94 is attached to the indoor end of the attachment 9, i.e., the indoor end of the indoor fixing part 91, to seal the gap between the lower plate part 911 and the upper plate part 912 of the indoor fixing part 91. This improves the design from the indoor side. The resin cover 94 can insulate heat transferred from the outdoors to the indoor side via the attachment 9, improving the thermal insulation of the fitting 1I.

[0103] A waterproof sheet 941 is provided between the existing sill 25 and the attachment 9, and a waterproof sheet 942 is provided between the attachment 9 and the new sill 5. This improves the watertightness between the existing sill 25 and the new sill 5.

[0104] The indoor-side fixing portion 91 of the attachment 9 has an upper plate portion 912, to which the new sash 5 is fixed, positioned higher than a lower plate portion 911, which is fixed to the existing sash 25. This allows the new sash 5 to be installed without interfering with the existing sash 25 in building sashes used in apartment buildings and other buildings where the indoor and outdoor sides have different heights. Even in the case of sliding sashes in buildings where the rails on the indoor and outdoor sides are different heights, the new sash 5 can be installed without interfering with the existing sash 25.

[0105] The present disclosure is not limited to the above-described embodiment and may be modified as appropriate. The first new vertical frame 6 does not necessarily have to include the metal member 61, the first resin member 62, and the second resin member 63, as long as it has a resin vertical frame having an outer hollow portion disposed on the outside in the left-right direction and an inner hollow portion disposed contiguous to the inside in the left-right direction of the outer hollow portion. The outer hollow portion and the inner hollow portion may each be arranged in multiple positions in the indoor-outdoor direction, or only one may be provided. The outer hollow portion and the inner hollow portion may be formed in the second new vertical frame 7. A resin vertical frame having an outer hollow portion and an inner hollow portion may not have an angle portion such as the angle portion 622 of the first resin member 62. A resin vertical frame having an outer hollow portion and an inner hollow portion may not have a fin portion such as the fin portion 626b of the first resin member 62. As long as the sealing material 44 is configured to seal the gap between the existing fixture 2 and the new frame 31, it does not have to be configured to seal the gap between the existing fixture 2 and the new frame 31 in two places using an indoor-side projection piece 442 provided on the indoor side and an outdoor-side projection piece 443 provided on the outdoor side.

[0106] As shown in Figure 20, both left and right end portions 91a of the indoor side fixing portion 91 of the attachment 9 do not protrude further to either side in the left and right direction than the outdoor side fixing portion 92 and the connecting portion 93, and may not be in contact with the first existing vertical frame 241 and the second existing vertical frame 242. The attachment 9 may not be provided with a resin cover 94 as shown in Figure 15. Waterproof sheets 941, 942 may not be provided between the existing lower frame 25 and the attachment 9, and between the attachment 9 and the new lower frame 5.

[0107] As shown in Figures 21 to 23, as in the blocking materials 44J, 64J, and 74J, protruding pieces 442a, 642a, and 742a that protrude indoors may be provided at the tip of the indoor-side projection pieces 442, 642, and 742, and the protruding pieces 442a, 642a, and 742a may come into contact with the existing frame 21 to block the gap between the existing frame 21 and the new frame 31.

[0108] As in the new sill 5 shown in Figure 24, the second plate portion 519b of the lower fixing portion 519 of the metal member 51 may be fixed to the outdoor side plate portion 232 of the existing sill 23 without the aid of a reinforcing member 54. As in the attachment 9 shown in Figure 25, it does not have to be in contact with the indoor side rail 236 of the existing sill 23. Although not shown, the attachment 9 may be in contact with the tip portion 237a of the outdoor side rail 237 of the existing sill 23.

[0109] As shown in Figures 26 and 27, the double-glazed glass 325, 335 of the inner shoji screen 32 and the outer shoji screen 33 may be fitted into the frame with backup materials 328, 338 and sealing materials 327, 337 provided.

[0110] The auxiliary members 8, 8C, and 8F and the blocking members 44, 44C, 44D, 44E, and 44F of the second to sixth embodiments may be installed on the vertical frames. The blocking members may be installed so that the outdoor-side facing piece is positioned closer to the indoor side than the outdoor end of the existing frame, and the indoor-side facing piece is positioned closer to the indoor side than the indoor end of the new frame. The blocking members may be installed so that the outdoor-side facing piece is positioned closer to the outdoor side than the outdoor end of the existing frame, and the indoor-side facing piece is positioned closer to the outdoor side than the indoor end of the new frame. The blocking members are installed between the existing frame 21 and the new frame 31, and may block the gap between the existing frame 21 and the new frame 31 by themselves, or may block the gap between the existing frame 21 and the new frame 31 in combination with other members such as auxiliary members. [Explanation of symbols]

[0111] 1, 1B-1F fittings, 2 existing fittings, 4 new upper frame, 8, 8C, 8F, 8G, 8H auxiliary materials, 11 body, 21 existing frame, 22 existing upper frame, 31 new frame, 44, 44C, 44D, 44E, 44F, 44J, sealing materials, 442, 442F, 454, 454D, 454E indoor facing pieces, 443, 443F, 456, 456D, 456E outdoor facing pieces, 451, 451D, 451E indoor components, 452, 452D, 452E outdoor components

Claims

1. A new frame that is attached to an existing frame fixed to the structure, A metal auxiliary material fixed to the existing frame; A building fixture having a metal closing material fixed to the auxiliary material and placed between the existing frame and the new frame.

2. The plugging material is An outdoor-side prospective piece arranged between the existing frame and the new frame on the outdoor side; The fixture according to claim 1, further comprising an indoor-side facing piece arranged between the existing frame and the new frame, on the indoor side of the outdoor-side facing piece.

3. The outdoor-side end piece is arranged on the indoor side relative to the outdoor end of the existing frame, The fixture according to claim 2, wherein the indoor side facing piece is positioned outside of the indoor end of the existing frame.

4. The outdoor-side facing piece is arranged on the outdoor side of the outdoor end of the existing frame, The fixture according to claim 2, wherein the indoor side facing piece is positioned inside the interior of the existing frame relative to the indoor end.

5. The outdoor-side end piece is arranged on the indoor side relative to the outdoor end of the existing frame, The fixture according to claim 2, wherein the indoor side facing piece is positioned inside the interior of the existing frame relative to the indoor end.

6. The outdoor-side facing piece is arranged on the outdoor side of the outdoor end of the existing frame, The fixture according to claim 2, wherein the indoor side facing piece is positioned outside of the indoor end of the existing frame.

7. The fixture according to claim 2, wherein the outdoor facing piece and the indoor facing piece are integrally formed.

8. The fixture according to claim 2, wherein the outdoor facing piece and the indoor facing piece are separate components.

9. The fixture according to any one of claims 1 to 8, wherein the sealing material is positioned so as not to overlap with the existing frame in the indoor / outdoor direction.

10. Metal support materials are attached to the existing frame fixed to the main body, Attach a new frame to the existing frame, A method for renovating building materials, in which the new frame is attached to the auxiliary material and a metal sealing material is placed between the existing frame and the new frame.

Images