Fixture

Abstract

To provide a fixture capable of preventing outdoor components from sagging.SOLUTION: The fixture has a new frame 31 that is attached to a metal existing frame 21 fixed to a building frame 11. The new frame 31 includes: a metal outdoor member 42 placed outdoors; a metal indoor member 41 placed indoors; a resin bridge material 43 that is placed between the outdoor member 42 and the indoor member 41 connecting the outdoor member 42 and the indoor member 41; and an outdoor fixing member 45 that fixes the outdoor member 42 to the existing frame 21.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to building materials. [Background technology]

[0002] Conventionally, when renovating building fixtures, the frame of the new fixture is installed inside the frame of the existing fixture and fixed to the building's framework. The newly installed fixtures use composite sashes made of a metal such as aluminum and a resin. In such cases, to improve the thermal insulation performance of the fixtures, a metal member installed on the indoor side and a metal member installed on the outdoor side are connected with a resin bridge material (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-040306 Summary of the Invention [Problem to be solved by the invention]

[0004] If a bridge material is installed in the frame of a new fixture, there is a risk that the outdoor component will sag if only the indoor component is fixed to the building frame.

[0005] The present disclosure aims to provide a fixture that can prevent outdoor components from sagging. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objective, the building fixture of the present disclosure has a new frame attached to an existing metal frame fixed to a main body, and the new frame has a metal outdoor member provided on the outdoor side, a metal indoor member provided on the indoor side, a resin bridge material provided between the outdoor member and the indoor member and connecting the outdoor member to the indoor member, an indoor fixing member that fixes the indoor member to the existing frame, and an outdoor fixing member that fixes the outdoor member to the existing frame. [Brief explanation of the drawings]

[0007] [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] This is a vertical cross-sectional view of the existing building fixtures. [Figure 4] This is a horizontal cross-sectional view of the existing building materials. [Figure 5] A vertical cross-sectional view of the newly installed upper frame of the first embodiment. [Figure 6] A vertical cross-sectional view of the new lower frame of the first embodiment. [Figure 7] A horizontal cross-sectional view of the first new vertical frame of the first embodiment. [Figure 8] A vertical cross-sectional view of the newly installed upper frame of the second embodiment. [Figure 9] A vertical cross-sectional view of the new lower frame of the second embodiment. [Figure 10] A horizontal cross-sectional view of the first new vertical frame of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (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 horizontal sliding window. The fitting 1 has a frame 31 and a shoji screen 32. The frame 31 is installed inside the existing frame 21. The frame 31 is provided so as to cover the existing frame 21. The frame 31 of the newly installed fitting 1 is referred to as the new frame 31. The existing fitting 2 is a metal sash. 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, and the horizontal direction perpendicular to the indoor-outdoor direction is referred to as the width direction.

[0009] As shown in Figures 3 and 4, the existing frame 21 has an existing upper frame 22, an existing lower frame 23, and a pair of existing vertical frames 24, 25. The existing upper frame 22 and the existing lower frame 23 extend in the width 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 24, 25 extend in the vertical direction. The pair of existing vertical frames 24, 25 each have approximately the same cross-sectional shape throughout the entire width direction.

[0010] As shown in FIG. 3 , the existing upper frame 22 has an indoor board portion 221, an outdoor board portion 222, an upper board portion 223, and a protruding board portion 224. The indoor board portion 221, the outdoor board portion 222, and the protruding board portion 224 are each flat. The board surfaces of the indoor board portion 221, the outdoor board portion 222, and the protruding board portion 224 face the indoor / outdoor direction. The indoor board portion 221 is provided on the indoor side of the outdoor board portion 222 with a gap therebetween. The upper board portion 223 is flat. The board surface of the upper board portion 223 faces the vertical direction. The indoor end of the upper board portion 223 is connected to the lower end of the indoor board portion 221. The outdoor end of the upper board portion 223 is connected to the lower end of the outdoor board portion 222. The protruding board portion 224 protrudes downward from a middle portion of the upper board portion 223 in the indoor / outdoor direction. An airtight material mounting portion 224a is provided at the lower end of the protruding plate portion 224, to which is attached an airtight material 224b that comes into contact with the upper frame 261 of the existing shoji screen 26. The airtight material mounting portion 224a protrudes further outdoors than the protruding plate portion 224. When attaching the new frame 31 to the existing frame 21, the airtight material 224b is removed from the airtight material mounting portion 224a.

[0011] The existing lower frame 23 has an indoor board portion 231, an outdoor board portion 232, a lower board portion 233, and a gutter mounting portion 234. The indoor board portion 231 and the outdoor board portion 232 are each flat. The board surfaces of the indoor board portion 231 and the outdoor board portion face the indoor / outdoor direction. The indoor board portion 231 is provided on the indoor side of the outdoor board portion 232 with a gap therebetween. The lower board portion 233 is provided between the indoor board portion 231 and the outdoor board portion 232. The lower board portion 233 is connected to the indoor board portion 231 and the outdoor board portion 232. The lower board portion 233 has a first lower board portion 235 to a fifth lower board portion 239. The first lower board portion 235 extends from near the upper end of the indoor board portion 231 to the outdoor side. The second lower board portion 236 extends from near the lower end of the indoor board portion 231 to the outdoor side. The third lower plate portion 237 extends downward from near the outdoor-side end of the first lower plate portion 235. The lower end of the third lower plate portion 237 is positioned higher than the second lower plate portion 236. The fourth lower plate portion 238 extends outdoors from the lower end of the third lower plate portion 237. The fifth lower plate portion 239 extends downward from a middle portion of the fourth lower plate portion 238 in the indoor / outdoor direction. The lower end of the fourth lower plate portion 238 is connected to a middle portion of the second lower plate portion 236 in the indoor / outdoor direction. The upper surfaces of the first lower plate portion 235 and the fourth lower plate portion 238 face upward.

[0012] The drip-water mounting portion 234 has a first plate portion 234a and a second plate portion 234b. The first plate portion 234a extends indoors from the lower end of the outdoor plate portion 232. The second plate portion 234b extends downward from a middle portion of the first plate portion 234a in the indoor / outdoor direction. A drip-water member 27 is mounted to the second plate portion 234b. The drip-water member 27 has a mounting plate portion 271, an inclined plate portion 272, and an outdoor plate portion 273. The mounting plate portion 271 is mounted to overlap the outdoor side of the second plate portion 234b. The inclined plate portion 272 extends diagonally gradually downwards from the lower end of the mounting plate portion 271 toward the outdoor side. The outdoor plate portion 273 extends downward from the outdoor end of the mounting plate portion 271.

[0013] As shown in FIG. 4 , the pair of existing vertical frames 24, 25 are shaped to be approximately symmetrical in the width direction. Of the pair of existing vertical frames 24, 25, the existing vertical frame 24 on one side in the width direction is referred to as the first existing vertical frame 24, and the existing vertical frame 25 on the other side in the width direction is referred to as the second existing vertical frame 25. The first existing vertical frame 24 has an indoor board portion 241, an outdoor board portion 242, a vertical board portion 243, and a protruding board portion 244. The indoor board portion 241, the outdoor board portion 242, and the protruding board portion 244 are each flat-plate shaped. The board surfaces of the indoor board portion 241, the outdoor board portion 242, and the protruding board portion 244 face the indoor / outdoor direction. The indoor board portion 241 is provided on the indoor side of the outdoor board portion 242 with a gap therebetween. The vertical board portion 243 is flat-plate shaped. The plate surface of the vertical plate portion 243 faces the width direction. The indoor end of the vertical plate portion 243 is connected to the end of the indoor plate portion 241 on the other side in the width direction. The outdoor end of the vertical plate portion 243 is connected to the end of the outdoor plate portion 242 on the other side in the width direction. The protruding plate portion 244 protrudes from the middle of the vertical plate portion 243 in the indoor / outdoor direction to the other side in the width direction. The second existing vertical frame 25 has an indoor plate portion 251, an outdoor plate portion 252, a vertical plate portion 253, and a protruding plate portion 254 that are symmetrical in the width direction to the indoor plate portion 241, the outdoor plate portion 242, the vertical plate portion 243, and the protruding plate portion 244 of the first existing vertical frame 24, respectively.

[0014] 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 width direction. The new upper frame 4 and the new lower frame 5 each have approximately the same cross-sectional shape over the entire vertical direction. The pair of new vertical frames 6, 7 extend in the vertical direction. The pair of new vertical frames 6, 7 each have approximately the same cross-sectional shape over the entire width direction. The new frame 31 is not fixed to the skeleton 11 or the window frame 12 provided on the indoor side of the skeleton 11. Indoor-side fixing members 44, 54, 62 and outdoor-side fixing members 45, 55 of the new frame 31, which will be described later, are not fixed to the skeleton 11 or the window frame 12.

[0015] As shown in Figure 5, the new upper frame 4 has an indoor side member 41, an outdoor side member 42, a bridge member 43, an indoor side fixing member 44, an outdoor side fixing member 45, and a resin member 46. The indoor side fixing member 44 corresponds to the indoor side fixing part. The outdoor side fixing member 45 corresponds to the outdoor side fixing part. A frame 47 is provided on the indoor side of the new upper frame 4. A shielding member 48 is attached to the new upper frame 4. The indoor side member 41 and the outdoor side member 42 are made of metal. The indoor side member 41 is provided on the indoor side. The outdoor side member 42 is provided on the outdoor side of the indoor side member 41. The bridge member 43 is provided between the indoor side member 41 and the outdoor side member 42. The bridge member 43 connects the indoor side member 41 and the outdoor side member 42. The bridge member 43 is made of resin. The indoor-side fixing member 44 fixes the indoor-side member 41 to the protruding plate portion 224 of the existing upper frame 22. The outdoor-side fixing member 45 is fixed to the indoor-side fixing member 44, thereby fixing the outdoor-side member 42 to the protruding plate portion 224 of the existing upper frame 22. The resin member 46 is attached to the underside of the indoor-side member 41, the outdoor-side member 42, and the bridge member 43. The frame 47 is attached to the indoor side of the indoor-side member 41. The shielding member 48 is attached to the outdoor-side member 42. The shielding member 48 prevents rainwater from entering between the new upper frame 4 and the existing upper frame 22.

[0016] The indoor side member 41 has a bridge connection portion 411, a projection plate portion 412, a fixing plate portion 413, and an upper protrusion portion 414. The bridge connection portion 411 is connected to the bridge material 43 from the indoor side. The projection plate portion 412 extends from the bridge connection portion 411 toward the indoor side. The fixing plate portion 413 extends upward and downward from the indoor side end of the projection plate portion 412. A protrusion portion 413a for attaching the resin member 46 is provided near the lower end of the fixing plate portion 413. The upper protrusion portion 414 protrudes upward from the bridge connection portion 411.

[0017] The outdoor member 42 has a bridge connection portion 421, an upper projection plate portion 422, a lower projection plate portion 423, an upper protrusion portion 424, an outdoor connection portion 425, an outdoor projection plate portion 426, and a protrusion piece 424a. The bridge connection portion 421 is connected to the bridge member 43 from the outdoor side. The upper projection plate portion 422 extends from the upper side of the bridge connection portion 421 to the outdoor side. The lower projection plate portion 423 extends from the lower side of the bridge connection portion 421 to the outdoor side. A recess 423a for attaching the resin member 46 is formed near the indoor end of the lower projection plate portion 423. The upper protrusion portion 424 protrudes upward from the bridge connection portion 421. The protrusion piece 424a protrudes indoors from the vertical middle of the upper protrusion portion 424. The corner formed by the indoor surface of the upper protruding portion 424 and the upper surface of the protruding piece 424a is referred to as the receiving corner 424b. A corner 454 formed by a new frame fixing portion 452 and a connection portion 453 of the outdoor fixing member 45, which will be described later, is arranged to overlap with the receiving corner 424b. The outdoor connecting portion 425 connects the outdoor end of the upper projection plate portion 422 and the outdoor end of the lower projection plate portion 423. The outdoor projection plate portion 426 protrudes outdoors from the vertical middle of the outdoor connecting portion 425.

[0018] The indoor-side member 41 and the outdoor-side member 42 are arranged side by side in the indoor-outdoor direction via a bridge member 43. The upper end of the upper protrusion 414 of the indoor-side member 41 and the upper surface of the protrusion piece 424a of the outdoor-side member 42 are arranged at the same height. The upper end of the upper protrusion 424 of the outdoor-side member 42 is arranged higher than the upper end of the fixing plate portion 413 of the indoor-side member 41 and the upper end of the upper protrusion 414.

[0019] The bridge material 43 is positioned indoors relative to the outdoor board portion 222 which is located at the outdoor end of the existing upper frame 22.

[0020] The indoor side fixing member 44 fixes the fixing plate portion 413 of the indoor side member 41 and the protruding plate portion 224 of the existing upper frame 22. The indoor side fixing member 44 has an existing frame fixing portion 441, a new frame fixing portion 442, and a connecting portion 443. The cross-sectional shape of the indoor side fixing member 44 is approximately Z-shaped. The connecting portion 443 connects the existing frame fixing portion 441 and the new frame fixing portion 442. The connecting portion 443 is flat. The connecting portion 443 is positioned with the plate surface facing up and down. The existing frame fixing portion 441 extends upward from the indoor side end of the connecting portion 443. The new frame fixing portion 442 extends downward from the outdoor side end of the connecting portion 443.

[0021] The indoor-side fixing member 44 is arranged as follows: The existing frame fixing portion 441 overlaps near the lower end of the indoor-side surface of the protruding plate portion 224 of the existing upper frame 22. The connection portion 443 is arranged along the lower surface of the airtight material mounting portion 224a provided at the lower end of the protruding plate portion 224 of the existing upper frame 22. The new frame fixing portion 442 overlaps the fixing plate portion 413 of the indoor-side member 41 on the indoor side. The existing frame fixing portion 441 and the protruding plate portion 224 are fixed with screws 81. The new frame fixing portion 442 and the fixing plate portion 413 are fixed with screws 82. It is fixed to the existing upper frame 22 via the indoor-side fixing member 44 and the indoor-side fixing member 44. The outdoor-side member 42 is fixed to the existing upper frame 22 via the indoor-side fixing member 44 and the outdoor-side fixing member 45. The indoor-side fixing member 44 is arranged on the indoor side of the bridge member 43.

[0022] The outdoor-side fixing member 45 fixes the upper protruding portion 424 of the outdoor-side member 42 and the protruding plate portion 224 of the existing upper frame 22 via the indoor-side fixing member 44. The outdoor-side fixing member 45 has an existing frame fixing portion 451, a new frame fixing portion 452, and a connection portion 453. The existing frame fixing portion 451, the new frame fixing portion 452, and the connection portion 453 are each flat plate-shaped. The connection portion 453 is positioned so that its plate surface faces up and down. The existing frame fixing portion 451 protrudes downward from the indoor-side end of the connection portion 453. The new frame fixing portion 452 protrudes upward from the outdoor-side end of the connection portion 453. The existing frame fixing portion 451 and the new frame fixing portion 452 each have plate surfaces facing indoors and outdoors.

[0023] The outdoor-side fixing member 45 is arranged as follows. The existing frame fixing portion 451 overlaps the outdoor side of the portion of the fixing plate portion 413 of the indoor-side member 41 on the outdoor side that is above the projection plate portion 412. The lower end of the existing frame fixing portion 451 contacts the upper surface of the projection plate portion 412. The new frame fixing portion 452 overlaps the portion of the upper projection portion 424 of the outdoor-side member 42 that is above the projection piece 424a on the indoor side. The connecting portion 453 is arranged above the projection piece 424a and the upper projection portion 414 of the indoor-side member 41. The outdoor-side end of the lower surface of the connecting portion 453 contacts the upper surface of the projection piece 424a. As described above, the corner 454 formed by the new frame fixing portion 452 and the connecting portion 453 of the outdoor-side fixing member 45 is arranged along the receiving corner portion 424b of the outdoor-side member 42. The middle part of the lower surface of the connecting part 453 in the indoor / outdoor direction is in contact with the upper end part of the upper protruding part 414 .

[0024] The connection portion 453 is positioned above the bridge material 43 with a gap therebetween. The existing frame fixing portion 451, together with the fixing plate portion 413 of the indoor side member 41, is fixed to the new frame fixing portion 442 of the indoor side fixing member 44 with screws 81. That is, the new frame fixing portion 442, fixing plate portion 413 and existing frame fixing portion 451 overlap in this order from the indoor side toward the outdoor side and are fastened together with screws 81. The new frame fixing portion 452 is fixed to the upper protrusion portion 424 with screws 83. The indoor side fixing member 44 corresponds to an auxiliary fixing member.

[0025] The resin member 46 has a first resin member 461 and a second resin member 462. The second resin member 462 is attached to the underside of the first resin member 461. The first resin member 461 has a first fixing portion 463 and a second fixing portion 464. The first fixing portion 463 is provided at the upper end portion on the indoor side. The first fixing portion 463 is hooked onto the protrusion portion 413a of the indoor-side member 41. The second fixing portion 464 is provided at the upper end portion on the outdoor side. The first resin member 461 has an outdoor plate portion 461a that forms the outdoor surface, and an outdoor protruding plate portion 461b that protrudes to the outdoor side from the upper end portion of the outdoor plate portion 461a. The second fixing portion 464 is provided at the outdoor-side end portion of the outdoor protruding plate portion 461b. The second fixing portion 464 is inserted into the recess 423a of the outdoor-side member 42. A recess 465 into which the second resin member 462 is fitted is formed on the lower side of the first resin member 461. The recess 465 opens downward.

[0026] The first resin member 461 is provided with a protruding portion 467 that protrudes downward from the middle portion of the outdoor protruding plate portion 461b in the indoor / outdoor direction. The protruding portion 467 is fin-shaped. The protruding portion 467 is molded from a resin material that is softer than the first resin member 461. The first resin member 461 and the protruding portion 467 are molded in two colors. The lower end of the protruding portion 467 comes into contact with the upper frame 321 of the shoji screen 32 to be newly installed. An airtight material 468 is provided at the lower end of the outdoor plate portion 461a. The airtight material 468 comes into contact with the upper frame 321 of the shoji screen 32 to be newly installed.

[0027] The first resin member 461 has a first hollow portion 46a to a fourth hollow portion 46d formed therein. The first hollow portion 46a is disposed below the indoor-side member 41, which is fixed to the existing upper frame 22 via the indoor-side fixing member 44. The first hollow portion 46a, the second hollow portion 46b, and the third hollow portion 46c are disposed in this order from the indoor side to the outdoor side. The fourth hollow portion 46d is disposed below the first hollow portion 46a and the second hollow portion 46b. The second resin member 462 has a fifth hollow portion 46e and a sixth hollow portion 46f formed therein. The fifth hollow portion 46e is disposed above the sixth hollow portion 46f. The fifth hollow portion 46e and the sixth hollow portion 46f are disposed below the fourth hollow portion 46d. The first resin member 461 has an indoor protruding plate portion 466 protruding indoors at its vertically middle portion.

[0028] The frame 47 is provided on the indoor side of the resin member 46, the indoor-side member 41, and the existing upper frame 22. As shown in FIG. 1, an angle member 472 having an L-shaped cross section is provided along the corner formed by the indoor-side surface 471 of the frame 47 and the underside 121 of the window frame 12. As shown in FIG. 5, a protrusion 473 that protrudes toward the outdoor side is formed on the lower side of the frame 47. The protrusion 473 is arranged above the indoor protruding plate portion 466 of the resin member 46. A frame hollow portion 47a is formed in the frame 47. The frame hollow portion 47a is arranged on the indoor side of the first hollow portion 46a of the first resin member 461.

[0029] Three hollows 47b, 47c, and 47d are formed in a line in the indoor / outdoor direction between the first resin member 461 and the frame 47. Three recesses that open downward are formed in the protruding portion 473 of the frame 47. The openings of the three recesses are blocked from below by the indoor protruding plate portion 466 of the first resin member 461. The three recesses whose lower sides are blocked by the indoor protruding plate portion 466 are the three hollows 47b, 47c, and 47d. The three hollows 47b, 47c, and 47d are arranged on the indoor side of the first hollow portion 46a of the first resin member 461.

[0030] As shown in FIG. 5 , the shielding member 48 has a fixing portion 481, a first fin portion 482, and a second fin portion 483. The fixing portion 481 is attached to the upper surface of the upper projection plate portion 422 of the outdoor-side member 42. The fixing portion 481 is fixed to the upper projection plate portion 422 with screws 84. The fixing portion 481 has an L-shaped cross section. The fixing portion 481 has a first piece 481a and a second piece 481b that form the L shape. The first piece 481a is fixed to the upper surface of the upper projection plate portion 422. The first piece 481a and the upper projection plate portion 422 have holes formed therein into which the screws 84 are inserted. The holes formed in either the first piece 481a or the upper projection plate portion 422 may be elongated holes extending in the indoor-outdoor direction. By doing so, the position of the shielding member 48 in the newly installed upper frame 4 can be adjusted.

[0031] The second piece 481b protrudes upward from the outdoor end of the first piece 481a. A first mounting portion 481c and a second mounting portion 481d are provided at the upper end of the second piece 481b. A first fin portion 482 is attached to the first mounting portion 481c. A second fin portion 483 is attached to the second mounting portion 481d. The first fin portion 482 and the second fin portion 483 are made of a flexible, plate-shaped rubber material or the like. The first fin portion 482 extends upward from the first mounting portion 481c. The first fin portion 482 is positioned closer to the outdoor side than the existing upper frame 22. An upper end portion 482a of the first fin portion 482 comes into contact with the building frame and is bent toward the outdoor side. The fixing portion 481 and the first fin portion 482 prevent rainwater from entering between the new upper frame 4 and the existing upper frame 22.

[0032] The second fin portion 483 extends diagonally upward from the second mounting portion 481d, gradually moving indoors. The upper end 483b of the second fin portion 483, i.e., the indoor end, is in contact with the corner 225 between the outdoor plate portion 222 and the upper plate portion 223 of the existing upper frame 22. The second fin portion 483 is disposed near the outdoor plate portion 222 provided at the outdoor end of the existing upper frame 22. The second fin portion 483 divides the space between the existing upper frame 22 and the main body 11 and the new upper frame 4 into an indoor side and an outdoor side. A gap may be provided between the upper end 483b of the second fin portion 483 and the existing upper frame 22.

[0033] As shown in Figure 6, the new sill 5 has an indoor side member 51, an outdoor side member 52, a bridge member 53, an indoor side fixing member 54, an outdoor side fixing member 55, and a resin member 56. The indoor side fixing member 54 corresponds to the indoor side fixing part. The outdoor side fixing member 55 corresponds to the outdoor side fixing part. A frame 57 is provided on the indoor side of the new sill 5. A shielding member 58 is attached to the new sill 5. The indoor side member 51 and the outdoor side member 52 are made of metal. The indoor side member 51 is provided on the indoor side. The outdoor side member 52 is provided on the outdoor side of the indoor side member 51. The bridge member 53 is provided between the indoor side member 51 and the outdoor side member 52. The bridge member 53 connects the indoor side member 51 and the outdoor side member 52. The bridge member 53 is made of resin. The indoor-side fixing member 54 fixes the indoor-side member 51 to the first lower plate portion 235 of the existing sill 23. The outdoor-side fixing member 55 is fixed to the indoor-side fixing member 54, thereby fixing the outdoor-side member 52 to the first lower plate portion 235 of the existing sill 23. The resin member 56 is attached to the upper sides of the indoor-side member 51, the outdoor-side member 52, and the bridge member 53. The frame 57 is attached to the indoor side of the indoor-side member 51. The shielding member 58 is attached to the outdoor-side member 42. The shielding member 58 prevents rainwater from entering between the new sill 5 and the existing sill 23.

[0034] The indoor side member 51 has a bridge connecting portion 511, a projection plate portion 512, and a fixing plate portion 513. The bridge connecting portion 511 is connected to the bridge member 53 from the indoor side. The projection plate portion 512 extends from the bridge connecting portion 511 toward the indoor side. The fixing plate portion 513 extends upward and downward from the indoor side end of the projection plate portion 512. A protrusion 513a for attaching a resin member 56 is provided near the upper end of the fixing plate portion 513.

[0035] The outdoor member 52 has a bridge connecting portion 521, an upper projection plate portion 522, a lower projection plate portion 523, a lower protrusion portion 524, an outdoor connecting portion 525, an outdoor protrusion portion 526, and an indoor connecting portion 527. The bridge connecting portion 521 is connected to the bridge member 53 from the outdoor side. A recess 521a for attaching a resin member 56 is formed at the upper end of the bridge connecting portion 521. The upper projection plate portion 522 extends from the lower end of the bridge connecting portion 521 to the outdoor side. The lower projection plate portion 523 is disposed below the upper projection plate portion 522 with a gap therebetween. The outdoor connecting portion 525 connects the outdoor end of the upper projection plate portion 522 to the outdoor end of the lower projection plate portion 523. The indoor-side connecting portion 527 connects the vicinity of the indoor-side end of the upper projection plate portion 522 with the vicinity of the indoor-side end of the lower projection plate portion 523. The lower protrusion portion 524 protrudes downward from the indoor-side end of the lower projection plate portion 523. The indoor-side member 51 and the outdoor-side member 52 are arranged side by side in the indoor-outdoor direction with the bridge member 53 interposed therebetween.

[0036] The bridge material 53 is positioned indoors relative to the outdoor board portion 232 which is located at the outdoor end of the existing lower frame 23.

[0037] The indoor side fixing member 54 fixes the fixing plate portion 513 of the indoor side member 51 and the first lower plate portion 235 of the existing lower frame 23. The indoor side fixing member 54 has an existing frame fixing portion 541 and a new frame fixing portion 542. The cross section of the indoor side fixing member 54 is approximately L-shaped. The existing frame fixing portion 541 is flat plate-shaped. The existing frame fixing portion 541 is arranged with the plate surface oriented horizontally. The new frame fixing portion 542 extends upward from the outdoor side end of the existing frame fixing portion 541.

[0038] The indoor side fixing member 54 is positioned as follows: The existing frame fixing portion 541 overlaps the upper surface of the first lower plate portion 235 of the existing lower frame 23. The new frame fixing portion 542 overlaps the fixing plate portion 513 of the indoor side member 51 from the indoor side. The existing frame fixing portion 541 is fixed to the first lower plate portion 235 with screws 85. The new frame fixing portion 542 is fixed to the fixing plate portion 513 with screws 86. The indoor side fixing member 54 is positioned on the indoor side of the bridge material 53.

[0039] The outdoor-side fixing member 55 fixes the lower protrusion 524 of the outdoor-side member 52 and the first lower plate portion 235 of the existing lower frame 23 via the indoor-side fixing member 54. The outdoor-side fixing member 55 has an existing frame fixing portion 551, a new frame fixing portion 552, and a connection portion 553. The existing frame fixing portion 551, the new frame fixing portion 552, and the connection portion 553 are each flat. The connection portion 553 is oriented so that its plate surface is horizontal. The existing frame fixing portion 551 extends upward from the indoor-side end of the connection portion 553. The new frame fixing portion 552 extends downward from the outdoor-side end of the connection portion 553. The plate surfaces of the existing frame fixing portion 551 and the new frame fixing portion 552 each face indoors and outdoors.

[0040] The outdoor-side fixing member 55 is arranged as follows. The existing frame fixing portion 551 overlaps the outdoor side of the fixing plate portion 513 of the indoor-side member 51 below the projection plate portion 512. The new frame fixing portion 552 overlaps the indoor side of the lower protrusion 524 of the outdoor-side member 52. The connection portion 553 is arranged along the lower surfaces of the bridge connection portion 511 of the indoor-side member 51 and the bridge connection portion 521 of the outdoor-side member 52. The vicinity of the outdoor-side end of the upper surface of the connection portion 553 is in contact with the lower surfaces of the bridge connection portion 511 of the indoor-side member 51 and the bridge connection portion 521 of the outdoor-side member 52. The connection portion 553 is arranged below the projection plate portion 512 with a gap therebetween. The existing frame fixing portion 551, together with the fixing plate portion 513 of the indoor-side member 51, is fixed to the new frame fixing portion 542 of the indoor-side fixing member 54 with screws 86. That is, the existing frame fixing portion 541, the fixing plate portion 513 and the existing frame fixing portion 551 are stacked in this order from the indoor side toward the outdoor side and are fastened together with the screw 86. The indoor side fixing member 54 corresponds to an auxiliary fixing member.

[0041] The resin member 56 has a first resin member 561 and a second resin member 562. The second resin member 562 is attached to the upper side of the first resin member 561. The first resin member 561 has a first fixing portion 563 and a second fixing portion 564. The first fixing portion 563 is provided at the indoor-side end portion. The first fixing portion 563 is hooked onto the protruding portion 513a of the indoor-side member 51. The second fixing portion 564 is provided at the lower end portion on the outdoor side. The first resin member 561 has an outdoor plate portion 561a that forms the outdoor-side surface, and an outdoor protruding plate portion 561b that protrudes outdoors from the lower end portion of the outdoor plate portion 561a. The second fixing portion 564 is provided at the outdoor-side end portion of the outdoor protruding plate portion 561b. The second fixing portion 564 is inserted into the recess 521a of the outdoor-side member 52. A recess 565 into which the second resin member 562 is fitted is formed on the lower side of the first resin member 561. The recess 565 opens upward.

[0042] The first resin member 561 is provided with a protruding portion 567 that protrudes outdoors from the middle of the outdoor board portion 561a in the vertical direction. The protruding portion 567 is fin-shaped. The protruding portion 567 is molded from a resin material that is softer than the first resin member 561. The first resin member 561 and the protruding portion 567 are molded in two colors. The outdoor-side end of the protruding portion 567 comes into contact with the bottom frame 322 of the new shoji screen 32. An airtight material 568 is provided at the upper end of the outdoor board portion 561a. The airtight material 568 comes into contact with the bottom frame 322 of the new shoji screen 32.

[0043] The first resin member 561 has a first hollow portion 56a to a fourth hollow portion 56d formed therein. The first hollow portion 56a and the second hollow portion 56b are arranged in this order from the indoor side to the outdoor side at the bottom of the first resin member 561. The third hollow portion 56c is arranged above the first hollow portion 56a and the second hollow portion 56b and on the indoor side of the first hollow portion 56a. The fourth hollow portion 56d is arranged above the third hollow portion 56c and on the indoor side of the third hollow portion 56c. The second resin member 562 has a fifth hollow portion 56e and a sixth hollow portion 56f formed therein. The fifth hollow portion 56e is arranged above the sixth hollow portion 56f. The fifth hollow portion 56e and the sixth hollow portion 56f are arranged above the third hollow portion 56c and on the outdoor side of the fourth hollow portion 56d. An indoor protruding plate portion 566 that protrudes toward the indoor side is formed on the upper end portion of the first resin member 561.

[0044] The frame 57 is provided on the indoor side of the resin member 56, the indoor-side member 51, and the existing sill 23. As shown in FIG. 1, an angle member 572 with an L-shaped cross section is provided along the corner formed by the indoor-side surface 571 of the frame 57 and the upper surface 122 of the window frame 12. As shown in FIG. 6, a protrusion 573 that protrudes toward the outdoor side is formed on the upper side of the frame 57. The protrusion 573 is positioned below the indoor protruding plate portion 566 of the resin member 56. A frame hollow portion 57a ​​is formed in the frame 57.

[0045] Three hollows 57b, 57c, and 57d are formed in a line in the indoor / outdoor direction between the first resin member 561 and the frame 57. Three recesses that open upward are formed in the protruding portion 573 of the frame 57. The openings of the three recesses are blocked from above by the indoor protruding plate portion 566 of the first resin member 561. The three recesses whose upper sides are blocked by the indoor protruding plate portion 566 are the three hollows 57b, 57c, and 57d. The three hollows 57b, 57c, and 57d are located on the indoor side of the fourth hollow portion 56d of the first resin member 561.

[0046] The shielding member 58 has a fixing portion 581, a first fin portion 582, and a second fin portion 583. The fixing portion 581 is attached to the underside of the lower projection plate portion 523 of the outdoor-side member 52. The fixing portion 581 is fixed to the lower projection plate portion 523 with screws 88. The fixing portion 581 has an L-shaped cross section. The fixing portion 581 has a first piece 581a and a second piece 581b that form the L shape. The first piece 581a is fixed to the underside of the lower projection plate portion 523. The first piece 581a and the lower projection plate portion 523 have holes formed therein through which the screws 88 are inserted. The holes formed in either the first piece 581a or the lower projection plate portion 523 may be elongated holes extending in the indoor / outdoor direction. This allows the position of the shielding member 58 on the new lower frame 5 to be adjusted.

[0047] The second piece 581b protrudes downward from the outdoor end of the first piece 581a. A first fin portion 582 and a second fin portion 583 are attached to the lower end of the second piece 581b. The first fin portion 582 and the second fin portion 583 are made of flexible plate-shaped rubber material or the like. The first fin portion 582 extends downward from the lower end of the second piece 581b. The first fin portion 582 is positioned on the outdoor side of the existing lower frame 23. The lower end of the first fin portion 582 contacts the water drainage member 27 of the existing lower frame 23 and is bent toward the outdoor side. The fixing portion 581 and the first fin portion 582 prevent rainwater from entering between the new lower frame 5 and the existing lower frame 23.

[0048] The second fin portion 583 extends diagonally downward from the lower end of the second piece 581b, gradually toward the interior of the building. The lower end 583a of the second fin portion 583, i.e., the indoor end, is located near the corner 230 between the outdoor plate portion 232 and the second lower plate portion 236 of the existing lower frame 23. The second fin portion 583 is located near the outdoor plate portion 232 provided at the outdoor end of the existing lower frame 23. The second fin portion 583 divides the space between the existing lower frame 23 and the water drainage member 27 and the new lower frame 5 into an indoor side and an outdoor side. The lower end 583a of the second fin portion 583 may be in contact with the existing lower frame 23.

[0049] The new vertical frame 6 provided on one side in the width direction shown in Figure 2 will be referred to as the first new vertical frame 6, and the new vertical frame 7 provided on the other side in the width direction will be referred to as the second new vertical frame 7. The first new vertical frame 6 and the second new vertical frame 7 are symmetrical in the width direction. We will explain the first new vertical frame 6, and will omit explanation of the second new vertical frame 7. Below, in the width direction, the side between the first new vertical frame 6 and the second new vertical frame 7, which are arranged with a gap in the width direction, will be referred to as the inside, and the side on which the first new vertical frame 6 and the second new vertical frame 7 are located relative to this inside will be referred to as the outside.

[0050] As shown in FIG. 7 , the first new vertical frame 6 has a metal member 61, an indoor-side fixing member 62, and a resin member 63. A frame 64 is provided on the indoor side of the first new vertical frame 6. A shielding member 65 is attached to the first new vertical frame 6. The first new vertical frame 6 does not have a bridge material. The indoor-side fixing member 62 fixes the metal member 61 to the protruding plate portion 244 of the first existing vertical frame 24. The indoor-side fixing member 62 has an existing frame fixing portion 621 that overlaps the indoor side of the protruding plate portion 244 of the first existing vertical frame 24, a new frame fixing portion 622 that overlaps the indoor side of the indoor plate portion 611 of the metal member 61, and a connection portion 623 that connects the existing frame fixing portion 621 and the new frame fixing portion 622. The existing frame fixing portion 621 is fixed to the protruding plate portion 244 of the first existing vertical frame 24 with a screw 624. The new frame fixing portion 622 is fixed to the indoor plate portion 611 of the metal member 61 with a screw 625. The metal member 61 and the first existing vertical frame 24 are fixed by an indoor side fixing member 62. The first new vertical frame 6 does not have any members equivalent to the outdoor side fixing members 45, 55 of the new upper frame 4 or the new lower frame 5.

[0051] The resin member 63 has a first resin member 631 and a second resin member 632. The second resin member 632 is attached to the inside of the first resin member 631 in the width direction. The first resin member 631 is fixed to the metal member 61. The first resin member 631 has a recess 635 formed therein into which the second resin member 632 is fitted. The recess 635 opens to the inside in the width direction.

[0052] The first resin member 631 has an outdoor board portion 631a that forms the outdoor surface. The first resin member 631 is provided with a protruding portion 637 that protrudes outdoors from the inner end of the outdoor board portion 631a in the width direction. The protruding portion 637 is fin-shaped. The protruding portion 637 is molded from a resin material that is softer than the first resin member 631. The first resin member 631 and the protruding portion 637 are molded in two colors. The outdoor end of the protruding portion 637 comes into contact with the vertical frame 323 of the shoji screen 32 to be newly installed. An airtight material 638 is provided in the middle of the outdoor board portion 631a in the width direction. The airtight material 568 comes into contact with the vertical frame 323 of the shoji screen 32 to be newly installed.

[0053] A first hollow portion 63a and a second hollow portion 63b are formed in the first resin member 631. The first hollow portion 63a and the second hollow portion 63b are arranged in this order from the indoor side to the outdoor side on the outer sides of the first resin member 631 in the width direction. A third hollow portion 63c, a fourth hollow portion 63d, and a fifth hollow portion 63e are formed in the second resin member 632. The first resin member 631 has an indoor protruding plate portion 636 that protrudes toward the indoor side.

[0054] The frame 64 is provided on the indoor side of the resin member 63, metal member 61, and first existing vertical frame 24. As shown in FIG. 2, an angle member 642 with an L-shaped cross section is provided along the corner formed by the indoor surface 641 of the frame 64 and the inner surface 123 of the window frame 12 in the width direction. As shown in FIG. 7, a protrusion 643 that protrudes toward the outdoor side is formed on the inner side in the width direction of the frame 64. The protrusion 643 is positioned on the outer side in the width direction of the indoor protruding plate portion 636 of the resin member 63. A frame hollow portion 64a is formed in the frame 64.

[0055] Three hollows 64b, 64c, and 64d are formed side by side in the indoor / outdoor direction between the first resin member 631 and the frame 64. Three recesses that open to the inside in the width direction are formed in the protruding portion 643 of the frame 64. The openings of the three recesses are blocked from the inside in the width direction by the indoor protruding plate portion 636 of the first resin member 631. The three recesses whose upper sides are blocked by the indoor protruding plate portion 636 are the three hollows 64b, 64c, and 64d. The three hollows 64b, 64c, and 64d are located on the indoor side of the third hollow portion 63c and the fourth hollow portion 63d of the first resin member 631.

[0056] The shielding member 65 has a fixing portion 651, a first fin portion 652, and a second fin portion 653. The fixing portion 651 is attached to one widthwise surface of the metal member 61. The fixing portion 651 is fixed to the metal member 61 with a screw 654. The fixing portion 651 has an L-shaped cross section. The fixing portion 651 has a first piece 651a and a second piece 651b that form the L shape. The first piece 651a is fixed to the metal member 61. The first piece 651a and the metal member 61 have holes formed therein into which the screws 654 are inserted. The holes formed in either the first piece 651a or the metal member 61 may be elongated holes extending in the indoor / outdoor direction. This allows the position of the shielding member 65 to be adjusted relative to the first new vertical frame 6.

[0057] The second piece 651b protrudes from the outdoor end of the first piece 651a to one side in the width direction. A first mounting portion 651c and a second mounting portion 652d are provided at one end of the second piece 651b in the width direction. A first fin portion 652 is attached to the first mounting portion 651c. A second fin portion 653 is attached to the second mounting portion 652d. The first fin portion 652 and the second fin portion 653 are made of a flexible, plate-shaped rubber material or the like. The first fin portion 652 extends from the first mounting portion 651c to one side in the width direction. The first fin portion 652 is positioned on the outdoor side of the first existing vertical frame 24. One side 652a of the first fin portion 652 in the width direction contacts the building frame 11 and is bent toward the outdoor side. The fixing portion 651 and the first fin portion 652 prevent rainwater from entering between the first new vertical frame 6 and the first existing vertical frame 24.

[0058] The second fin portion 653 extends gradually in a diagonal direction toward the interior of the building as it moves from the second mounting portion 652d to one side in the width direction. An end portion 653b on one side in the width direction of the second fin portion 653, i.e., the indoor-side end portion, contacts a corner 245 between the outdoor plate portion 242 and the vertical plate portion 243 of the first existing vertical frame 24. The second fin portion 653 divides the space between the first existing vertical frame 24 and the body 11 and the first new vertical frame 6 into an indoor side and an outdoor side. A gap may be provided between the end portion 653b on one side in the width direction of the second fin portion 653 and the first existing vertical frame 24.

[0059] A method for renovating a fixture will now be described. When renovating an existing fixture 2, first remove the shoji screen 26 from the existing fixture 2. The new upper frame 4 is connected between the indoor-side member 41 and the outdoor-side member 42 via the bridge member 43, the outdoor-side fixing member 45 is fixed to the outdoor-side member 42 with the screw 83, the shielding member 48 is fixed to the outdoor-side member 42, and the indoor-side fixing member 44 is not attached. The existing frame fixing portion 451 of the outdoor-side fixing member 45 and the fixing plate portion 413 of the indoor-side member 41 are arranged so as to overlap in the indoor-outdoor direction. The existing frame fixing portion 451 of the outdoor-side fixing member 45 and the fixing plate portion 413 of the indoor-side member 41 are not fixed to each other because the screws 82 that secure them and the indoor-side fixing member 44 are not attached to the new upper frame 4. The resin member 46 may be attached to the indoor-side member 41 and the outdoor-side member 42.

[0060] The new sill 5 is connected between the indoor-side member 51 and the outdoor-side member 52 via the bridge member 53, the outdoor-side fixing member 55 is fixed to the indoor-side member 51 and the outdoor-side member 52, the shielding member 58 is fixed to the outdoor-side member 52, and the indoor-side fixing member 54 is not attached. The existing frame fixing portion 551 of the outdoor-side fixing member 55 and the fixing plate portion 513 of the indoor-side member 51 are arranged to overlap in the indoor-outdoor direction. The existing frame fixing portion 551 of the outdoor-side fixing member 55 and the fixing plate portion 513 of the indoor-side member 51 are not fixed to each other because the screws 86 that secure the indoor-side fixing member 54 are not attached to the new sill 5. The resin member 56 may be attached to the indoor-side member 51 and the outdoor-side member 52 in advance. The indoor-side fixing member 54 is fixed to the first lower plate portion 235 of the existing sill 23 with the screws 85. The first new vertical frame 6 is in a state where the shielding member 65 is attached to the metal member 61 and the indoor side fixing member 62 is not attached. The resin member 63 may be attached to the metal member 61. The second new vertical frame 7 is in the same state as the first new vertical frame 6.

[0061] The new frame 31, without the indoor-side fixing members 44, 54, 62 attached, is placed inside the existing frame 21 from the outdoor side. The new frame 31 is placed inside the existing frame 21 so that the bridge member 43 of the new upper frame 4 is positioned on the indoor side relative to the outdoor board portion 222 located at the outdoor-side end of the existing upper frame 22. The first fin portion 482 of the shielding member 48 of the new upper frame 4, the first fin portion 582 of the shielding member 58 of the new lower frame 5, and the first fin portions 652 of the shielding members 65 of the first new vertical frame 6 and the second new vertical frame 7 are brought into contact with the main body 11.

[0062] The fixing plate portion 513 of the indoor-side member 51 of the new lower frame 5 is brought into contact with the new frame fixing portion 542 of the indoor-side fixing member 54 fixed to the existing lower frame 23. The new frame 31 and the existing frame 21 are fixed from the indoor side with the indoor-side fixing members 44, 54, 62. The existing frame fixing portion 441 of the indoor-side fixing member 44 of the new upper frame 4 is brought into contact with the indoor side surface of the protruding plate portion 224 of the existing upper frame 22 from the indoor side and fixed with the screw 81, and the new frame fixing portion 442 of the indoor-side fixing member 44 is brought into contact with the fixing plate portion 413 of the new upper frame 4 from the indoor side and fixed with the screw 82.

[0063] As described above, the existing frame fixing portion 541 of the indoor-side fixing member 54 of the new sill 5 has already been fixed to the first lower plate portion 235 of the existing sill 23. The new frame fixing portion 542 of the indoor-side fixing member 54 of the new sill 5 is brought into contact with the fixing plate portion 513 of the new sill 5 from the indoor side and fixed with screws 86. The existing frame fixing portion 621 of the indoor-side fixing member 62 of the first new vertical frame 6 is brought into contact with the protruding plate portion 244 of the first existing vertical frame 24 from the indoor side and fixed with screws 624, and the new frame fixing portion 622 of the indoor-side fixing member 62 is brought into contact with the indoor plate portion 611 of the first new vertical frame 6 from the indoor side and fixed with screws 625. The second new vertical frame 7 is fixed in the same manner as the first new vertical frame 6.

[0064] Frames 47, 57, and 64 are attached to the indoor side of the new upper frame 4. Frame 47 is installed on the indoor side of the new upper frame 4. The protruding portion 473 of frame 47 is placed above the indoor protruding plate portion 466 of the new upper frame 4. The protruding portion 473 of frame 47 is fixed to the indoor protruding plate portion 466 of the new upper frame 4 with screws or the like. Angle iron 472 is placed at the corner between the indoor side surface 471 of frame 47 and the underside 121 of the window frame 12. The angle iron 472 is fixed to the window frame 12 with screws or the like. Frame 57 is installed on the indoor side of the new sill 5. The protruding portion 573 of frame 57 is placed below the indoor protruding plate portion 566 of the new sill 5. The protruding portion 573 of frame 57 is fixed to the indoor protruding plate portion 566 of the new sill 5 with screws or the like. An angle iron 572 is placed at the corner between the indoor surface 571 of the frame 57 and the top surface 122 of the window frame 12. The angle iron 572 is fixed to the window frame 12 with screws or the like. The frame 64 is installed on the indoor side of the first new vertical frame 6. The protruding portion 643 of the frame 64 is placed on the outside in the width direction of the indoor protruding plate portion 636 of the first new vertical frame 6. The protruding portion 643 of the frame 64 is fixed to the indoor protruding plate portion 646 of the first new vertical frame 6 with screws or the like. An angle iron 642 is placed at the corner between the indoor surface 641 of the frame 64 and the bottom surface 123 of the window frame 12. The angle iron 642 is fixed to the window frame 12 with screws or the like. In this way, the new frame 31 is fixed to the existing frame 21. The shoji screen 32 is fitted into the new frame 31. The fitting 1 of this embodiment is attached to the existing frame 21 using this dry construction method.

[0065] In the fitting 1, the outdoor-side fixing member 45 fixed to the outdoor-side member 42 of the new upper frame 4 is fixed to the protruding plate portion 224 of the existing upper frame 22 via the indoor-side fixing member 44. Therefore, by fixing the indoor-side fixing member 44 to the protruding plate portion 224 of the existing upper frame 22, both the indoor-side member 41 and the outdoor-side member 42 can be fixed to the existing upper frame 22. This prevents the outdoor side of the new upper frame 4, i.e., the outdoor-side member 42, from sagging. In the fitting 1, the outdoor-side fixing member 55 fixed to the outdoor-side member 52 of the new sill 5 is fixed to the first sill plate portion 235 of the existing sill 23 via the indoor-side fixing member 54. Therefore, by fixing the indoor-side fixing member 54 to the first sill plate portion 235 of the existing sill 23, both the indoor-side member 51 and the outdoor-side member 52 can be fixed to the existing sill 23. This prevents the outdoor side of the newly installed lower frame 5, i.e., the outdoor side component 52, from sagging.

[0066] The indoor-side fixing member 44 serves both as a member for fixing the indoor-side member 41 to the existing upper frame 22 and as a member for fixing the outdoor-side fixing member 45, which fixes the outdoor-side member 42, to the existing upper frame 22. Compared to the case where a member for fixing the indoor-side member 41 to the existing upper frame 22 and a member for fixing the outdoor-side fixing member 45 to the existing upper frame 22 are separately provided, the number of parts of the fitting 1 can be reduced, making construction management and quality control easier.

[0067] As described above, the outdoor-side fixing member 45 has a Z-shaped cross section. The existing frame fixing portion 451, which is fixed to the indoor-side member 41, extends downward from the indoor-side end of the connection portion 453. The new frame fixing portion 452, which is fixed to the outdoor-side member 42, extends upward from the outdoor-side end of the connection portion 453. Therefore, if the outdoor-side member 42 attempts to displace downward due to its weight, causing the new frame fixing portion 452 to move downward and the outdoor-side fixing member 45 to rotate so that the existing frame fixing portion 451 moves upward, the existing frame fixing portion 451 is pressed against the fixing plate portion 413 and the upper projection plate portion 422, restricting the rotation of the outdoor-side fixing member 45. This also restricts the new frame fixing portion 452 from moving downward, preventing the outdoor-side member 42 from sagging downward.

[0068] As described above, the outdoor-side end of the lower surface of the connecting portion 453 of the outdoor-side fixing member 45 contacts the upper surface of the protruding piece 424a of the outdoor-side member 42. The corner 454 formed by the new frame fixing portion 452 and the connecting portion 453 of the outdoor-side fixing member 45 is arranged along the receiving corner 424b formed by the upper protruding portion 424 and the protruding piece 424a of the outdoor-side member 42. The middle portion of the lower surface of the connecting portion 453 in the indoor / outdoor direction contacts the upper end of the upper protruding portion 414. This restrains displacement of the outdoor-side fixing member 45, preventing the outdoor-side member 42 from sagging downward. Positioning the outdoor-side fixing member 45 is easy.

[0069] As described above, the outdoor-side fixing member 55 has a Z-shaped cross section. The existing frame fixing portion 551, which is fixed to the indoor-side member 51, extends upward from the indoor-side end of the connection portion 553. The new frame fixing portion 552, which is fixed to the outdoor-side member 52, extends downward from the outdoor-side end of the connection portion 553. Therefore, when the outdoor-side member 52 attempts to displace downward due to its weight, causing the new frame fixing portion 552 to move downward and the outdoor-side fixing member 45 to rotate so that the existing frame fixing portion 551 moves upward, the existing frame fixing portion 551 is pressed against the fixing plate portion 513 and the new frame fixing portion 542, restricting the rotation of the outdoor-side fixing member 55. This also restricts the new frame fixing portion 552 from moving downward, preventing the outdoor-side member 52 from sagging downward.

[0070] As described above, the vicinity of the outdoor end on the upper surface of the connection part 553 of the outdoor fixing member 55 is in contact with the lower surfaces of the bridge connection part 511 of the indoor side member 51 and the bridge connection part 521 of the outdoor side member 52. The outdoor side surface of the new frame fixing part 552 of the outdoor side fixing member 55 is in contact with the indoor side surface of the lower protrusion part 524 of the outdoor side member 52. The existing frame fixing part 551 of the outdoor side fixing member 55 is in contact with the fixing plate part 513 of the indoor side member 51. This makes it easy to position the outdoor side fixing member 55 relative to the indoor side member 51 and the outdoor side member 52.

[0071] (Second embodiment) The same reference numerals are used for members and parts that are the same as or similar to those in the first embodiment, and their explanation will be omitted, and only configurations that differ from those in the first embodiment will be described. As shown in Fig. 8, the outdoor-side fixing member 45B of the new upper frame 4B of the fitting 1B according to the second embodiment fixes the outdoor-side member 42 to the existing upper frame 22 without using the indoor-side fixing member 44. The outdoor-side fixing member 45B is fixed to the upper protrusion 424 of the outdoor-side member 42, and is also fixed to the upper plate portion 223 of the existing upper frame 22. The outdoor-side fixing member 45B corresponds to the outdoor-side fixing part.

[0072] The outdoor-side fixing member 45B has an existing frame fixing portion 451B and a new frame fixing portion 452B. The outdoor-side fixing member 45B has a substantially L-shaped cross section. The existing frame fixing portion 451B and the new frame fixing portion 452B are each flat plate-shaped. The existing frame fixing portion 451B is positioned with its plate surface facing up and down, and the new frame fixing portion 452B protrudes downward from the outdoor-side end of the existing frame fixing portion 451B.

[0073] The outdoor-side fixing member 45B is positioned as follows: The existing frame fixing portion 451B overlaps the lower surface of the upper plate portion 223 of the existing upper frame 22. The new frame fixing portion 452B overlaps the portion of the upper protrusion portion 424 of the outdoor-side member 42 that is above the protruding piece 424a on the indoor side. The lower end portion 452a of the new frame fixing portion 452B is in contact with the upper surface of the protruding piece 424a. The existing frame fixing portion 451B is fixed to the upper plate portion 223 of the existing upper frame 22 with a screw 891. The new frame fixing portion 452B is fixed to the upper protrusion 424 with a screw 83. The outdoor-side fixing member 45B is positioned on the outdoor side of the bridge member 43. The indoor-side fixing member 44 is positioned on the indoor side of the bridge member 43.

[0074] The new upper frame 4B of the second embodiment does not have the shielding member 48 shown in Fig. 1. A sealing material 13 is provided between the upper projection board portion 422 of the outdoor-side member 42 and the main body 11. The sealing material 13 prevents rainwater from entering between the new upper frame 4 and the existing upper frame 22.

[0075] 9, the outdoor fixing member 55B of the new sill 5B according to the second embodiment fixes the outdoor member 52 to the existing sill 23 without using the indoor fixing member 54. The outdoor fixing member 55B is fixed to the lower protruding portion 524 of the outdoor member 52, and is also fixed to the fourth lower plate portion 238 of the existing sill 23. The outdoor fixing member 55B corresponds to the outdoor fixing part.

[0076] The outdoor fixing member 55B has an existing frame fixing portion 551B and a new frame fixing portion 552B, and has a generally L-shaped cross section. The existing frame fixing portion 551B and the new frame fixing portion 552B are each flat. The existing frame fixing portion 551B is positioned so that its plate surface faces up and down, and the new frame fixing portion 552B protrudes upward from the outdoor end of the existing frame fixing portion 551B.

[0077] The outdoor fixing member 55B is positioned as follows: The existing frame fixing portion 551B overlaps the upper surface of the fourth lower plate portion 238 of the existing lower frame 23. The new frame fixing portion 552B overlaps the indoor side of the lower protrusion portion 524 of the outdoor member 52. The existing frame fixing portion 551B is fixed to the fourth lower plate portion 238 of the existing lower frame 23 with a screw 892. The new frame fixing portion 552B is fixed to the lower protrusion portion 524 with a screw 87. The outdoor fixing member 55B is positioned below the bridge member 53. The indoor fixing member 54 is positioned closer to the indoor side than the bridge member 53.

[0078] In the second embodiment, a new sill 5B is provided with a water flashing member 59 and a sealant 13 instead of the shielding member 58 shown in FIG. 1. The water flashing member 59 and the sealant 13 prevent rainwater from entering between the new sill 5 and the existing sill 23. In the second embodiment, an existing water flashing member is not attached to the existing sill 23. The water flashing member 59 is fixed to the outdoor side of the lower protrusion 524 of the outdoor-side member 52. The water flashing member 59 protrudes to the outdoor side from the lower protrusion 524 of the outdoor-side member 52. The water flashing member 59 is fastened to the new frame fixing portion 552B and the lower protrusion 524 with screws 87. The sealant 13 is provided between the upper projection board portion 522 of the outdoor-side member 52 and the water flashing member 59, and between the water flashing member 27 of the existing sill 23 and the new water flashing member 59.

[0079] As shown in FIG. 10 , the first new vertical frame 6B of the second embodiment includes an indoor-side fixing member 62 similar to that of the first embodiment, as well as an outdoor-side fixing member 66 that fixes a metal member 61 to the vertical plate portion 243 of the first existing vertical frame 24 on the indoor side of the indoor-side fixing member 62. The outdoor-side fixing member 66 includes an existing frame fixing portion 661 that is fixed to the vertical plate portion 243 of the first existing vertical frame 24 with a screw 663, and a new frame fixing portion 662 that is connected to the existing frame fixing portion 661 and fixed to the facing plate portion 612 of the metal member 61 of the first new vertical frame 6B with a screw 664. The first new vertical frame 6 does not include the shielding member 65 shown in FIG. 2 . A sealant 13 is provided between the metal member 61 and the frame 11. The sealant 13 prevents rainwater from entering between the first new vertical frame 6 and the first existing vertical frame 24. The second new vertical frame (not shown) has a shape that is approximately symmetrical to the first new vertical frame 6 in the width direction, and is configured in the same manner as the first new vertical frame 6.

[0080] The fitting 1B according to the second embodiment achieves the same effects as the fitting 1 of the first embodiment. The outdoor-side fixing member 45B of the new upper frame 4B is fixed directly to the existing upper frame 22. This allows the outdoor-side member 42 to be more firmly fixed to the existing upper frame 22, preventing the outdoor-side member 42 from sagging. The outdoor-side fixing member 55B of the new lower frame 5B is fixed directly to the existing lower frame 23. This allows the outdoor-side member 42 to be more firmly fixed to the existing lower frame 23, preventing the outdoor-side member 52 from sagging.

[0081] In the method for renovating fittings according to the second embodiment, the outdoor fixing members 45B, 55B, and 66 are not fixed to the new frame 31B in advance, but are fixed to the existing frame 21 with screws 891, 892, and 663. After the new frame 31B is placed inside the existing frame 21, the outdoor fixing members 45B, 55B, and 66 fixed to the existing frame 21 and the new frame 31B are fixed from the outdoor side with screws 83, 87, and 664. The indoor fixing members 44, 54, and 62 are the same as in the first embodiment. After the new frame 31B is fixed to the existing frame 21, a sealant 13 is provided between the new frame 31B and the frame 11.

[0082] The present disclosure is not limited to the above-described embodiments and may be modified as appropriate. For example, in the above-described embodiments, the fittings 1, 1B may be sashes other than horizontal sliding windows, such as sliding windows. The indoor-side fixing members 44, 54 and the outdoor-side fixing members 45, 45B, 55, 55B may be members extending across the entire width of the fittings 1, 1B. The indoor-side fixing members 44, 54 and the outdoor-side fixing members 45, 45B, 55, 55B may be piece-shaped members rather than members extending across the entire width of the fittings 1, 1B. In the new frames 31, 31B, instead of the indoor-side fixing members 44, 54 and the outdoor-side fixing members 45, 45B, 55, 55B, the indoor-side members 41, 51 may be provided with indoor-side fixing portions fixed to the existing frame 21, and the outdoor-side members 42, 52 may be provided with outdoor-side fixing portions fixed to the existing frame 21. As long as the new frames 31, 31B are provided with outdoor-side fixing portions for fixing the outdoor-side members 42, 52 to the existing frame 21, the indoor-side fixing members 44, 54 do not have to be provided.

[0083] The metal members 61 of the first new vertical frame 6 and the second new vertical frame 7 may be divided into an indoor member and an outdoor member, which are connected by a bridge member. In such a case, an indoor-side fixing portion that fixes the indoor member to the first existing vertical frame 24 and the second existing vertical frame 25, and an outdoor-side fixing portion that fixes the outdoor member to the first existing vertical frame 24 and the second existing vertical frame 25 may be provided. The outdoor-side fixing portion may be provided on the new upper frame 4, but not on the new lower frame 5.

[0084] The outdoor end of the underside of the connection part 453 of the outdoor fixing member 45 of the new upper frame 4 does not have to be in contact with the upper surface of the protruding piece 424a. The outdoor member 42 does not have to be provided with a receiving corner 424b where the corner 454 formed by the new frame fixing part 452 and the connection part 453 of the outdoor fixing member 45 overlaps. The outdoor member 52 of the new lower frame 5 may be provided with a receiving corner where the corner of the outdoor fixing part overlaps. [Explanation of symbols]

[0085] 1,1B Door and window fittings, 2 Existing door and window fittings, 4,4B New upper frame, 5,5B New lower frame, 11 Body, 21 Existing frame, 22 Existing upper frame, 23 Existing lower frame, 31 New frame, 41,51 Indoor side components, 42,52 Outdoor side components, 43,53 Bridge material, 44,54 Indoor side fixing components, 45,55,45B,55B Outdoor side fixing components, 224 Protruding plate portion, 235 First lower plate portion, 238 Fourth lower plate portion, 441 Existing frame fixing portion, 442 New frame fixing portion, 443 Connection portion, 451,451B Existing frame fixing portion, 452,452B New frame fixing portion, 453 Connection portion, 454 Corner portion, 541 Existing frame fixing portion, 542 New frame fixing part, 551, 551B existing frame fixing part, 552, 552B new frame fixing part, 553 connection part

Claims

1. It has a new frame that can be attached to an existing metal frame fixed to the structure, The new framework is as follows: a metal outdoor member provided on the outdoor side; a metal indoor member provided on the indoor side; a resin bridge member that is provided between the outdoor-side member and the indoor-side member and connects the outdoor-side member and the indoor-side member; A fixture having an outdoor fixing part that fixes the outdoor member to the existing frame.

2. The new framework is as follows: The fixture according to claim 1, further comprising an indoor fixing portion for fixing the indoor side component to the existing frame.

3. The fixture according to claim 1, further comprising a fixing auxiliary member provided between the outdoor fixing portion and the existing frame, for fixing the outdoor fixing portion to the existing frame.

4. The new framework is as follows: an indoor side fixing portion that fixes the indoor side member to the existing frame; The fixture according to claim 3, wherein the auxiliary fixing member is the indoor side fixing portion.

5. The outdoor side fixing part is a new frame fixing portion located on the outdoor side and fixed to the outdoor-side member; an existing frame fixing portion located on the indoor side and fixed to the existing frame; a connecting portion located between the new frame fixing portion and the existing frame fixing portion and connecting the new frame fixing portion and the existing frame fixing portion, The new frame fixing portion protrudes from the outdoor end of the connection portion to one side in the up-down direction, The building fixture according to claim 1 or 2, wherein the existing frame fixing portion protrudes from the indoor end of the connection portion to the other side in the vertical direction.

6. The fixture according to claim 5, wherein the new frame has a receiving corner portion that is positioned so that the corner formed by the connection portion and the new frame fixing portion overlaps.

Images