Fitting

Abstract

To provide a fitting capable of improving fireproof performance.SOLUTION: A fitting 1 includes an attachment 6 that is detachably attached to any one of a region between an outdoor-side rail 25 and an indoor-side rail 26 in a sill 23 and a region adjacent to the indoor-side rail 26 on the indoor side in the sill 23, a thermally foaming material 7, and a fixing part 8 disposed adjacent to the attachment 6 to be fixed to the sill 23. The thermally foaming material 7 has thermally foaming materials 7A and 7B to be disposed on the top face of the fixing part 8.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] Conventionally, there are so-called flat rail structure fittings in which the upper surface of the lower frame is configured to be approximately flat. In flat rail structure fittings, attachments are placed on the sides of the rails that guide the shoji screen, thereby suppressing the occurrence of unevenness caused by the rails.

[0003] Furthermore, in order to ensure the fire resistance of building fixtures, thermally expandable members such as expanded graphite are placed in the attachments (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-31604 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the tires of shoji door rollers are preferably made of a material with excellent sliding properties (e.g., resin) to enable smooth opening and closing of the shoji screens. However, as a result, the tires of the door rollers may be easily melted by heat and become easily ignited. In the case of fittings with a flat rail structure, the melted door roller tires may accumulate on the attachment and become easily ignited. For this reason, in the case of fittings with a flat rail structure, particularly strict fire prevention measures are required near the sill.

[0006] The present disclosure aims to provide building materials that can improve fire resistance. [Means for solving the problem]

[0007] The building fixture of the present disclosure comprises a lower frame, multiple shoji screens, an exterior rail attached to the lower frame, extending in the left-right direction and guiding the shoji screens, an interior rail attached to the lower frame at a distance from the exterior rail toward the interior of the room, extending in the left-right direction and guiding the shoji screens, an attachment that can be detachably attached to either the area of the lower frame between the exterior rail and the interior rail, or the area of the lower frame adjacent to the interior rail toward the interior of the room, a heated foam material, and a fixed part attached adjacent to the attachment and fixed to the lower frame, wherein the heated foam material has a lower frame-side heated foam material attached to the upper surface of the fixed part. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of a fixture according to one embodiment, viewed from the inside of the room. [Figure 2] FIG. 4 is a vertical cross-sectional view of the lower frame and its vicinity, showing the first fixed component and its vicinity. [Figure 3] FIG. 10 is a vertical cross-sectional view of the lower frame and its vicinity, showing the second fixed component and its vicinity. [Figure 4] This is a plan view of the area near the lower frame. [Figure 5] FIG. 4 is a plan view of the first fixing component. [Figure 6] FIG. 10 is a plan view of the second fixing component. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. As shown in FIG. 1, a fitting 1 of this embodiment is installed in an opening 101 of a building 100. The fitting 1 is a sliding window, and includes a frame 2 and a plurality of (specifically, two) shoji screens 4, 5. The fitting 1 is a so-called double-panel sliding window. The opening shape of the opening 101 is approximately rectangular.

[0010] In this specification, "visible direction" refers to the direction in which the surfaces of the face materials of the shoji screens 4 and 5 of the fitting 1 placed in the opening 101 extend. "Left-right direction" refers to the horizontal direction in the visible direction, and refers to the left-right direction when the fitting 1 is viewed from inside the room. "Visible direction" refers to the thickness direction (i.e., the depth direction) of the face materials 49 and 59 of the shoji screens 4 and 5. "Visible direction" also refers to the direction from inside the room to outside.

[0011] The frame body 2 is a frame body provided along the periphery of the opening 101. The frame body 2 is formed in a rectangular frame shape. The frame body 2 is made of aluminum, aluminum-resin composite, or resin shaped material. The frame body 2 has an upper frame 21, a pair of left and right vertical frames 22, and a lower frame 23.

[0012] The upper frame 21 is a long member extending in the left-right direction above the opening 101. Each vertical frame 22 is a long member extending in the up-down direction on both left-right ends of the opening 101. The lower frame 23 is a long member extending in the left-right direction below the opening 101. As shown in FIG. 2 , the lower frame 23 has an exterior rail 25 extending in the left-right direction, and an interior rail 26 that is provided on the indoor side and spaced apart from the exterior rail 25, extending in the left-right direction.

[0013] The outdoor rail 25 and the indoor rail 26 each extend across the entire left-right area of the bottom frame 23. The outdoor rail 25 and the indoor rail 26 each protrude upward.

[0014] As shown in Figures 2 and 3, a step portion 27 is provided on the upper surface of the lower frame 23 in an area that is closer to the room than the indoor rail 26. The step portion 27 is shaped like a two-step staircase, with the outdoor side being lower than the indoor side. The step portion 27 has an upper step portion 271 and a lower step portion 272 that is located on the outdoor side of the upper step portion 271. The outdoor end of the upper step portion 271 extends directly above the lower step portion 272. Also, in Figure 2, an internal attachment 65, which will be described later, is not shown.

[0015] An angle member 28 is provided in the area of the lower frame 23 closer to the interior of the room than the interior rail 26.

[0016] The angle member 28 covers the surface of the area of the lower frame 23 that is closer to the room than the indoor rail 26. The angle member 28 is made of, for example, resin. The angle member 28 has an outdoor portion 281, a middle portion 283, and an indoor portion 284.

[0017] The outdoor portion 281 covers the area of the lower frame 23 adjacent to the indoor side of the indoor rail 26. The outdoor portion 281 has a rectangular plate shape with a plate surface extending horizontally. An engagement portion 282 is provided at the middle part of the lower surface of the outdoor portion 281 in the forward direction.

[0018] The engagement portion 282 extends downward from the lower surface of the outdoor portion 281, with its lower end bent toward the indoor side. The engagement portion 282 is generally L-shaped when viewed left and right. The lower end of the engagement portion 282 abuts against the upper surface of the lower step portion 272. The engagement portion 282 engages with the outdoor end of the upper step portion 271. This fixes the angle member 28 to the lower frame 23. The outdoor end of the outdoor portion 281 is spaced apart from both the lower step portion 272 and the indoor rail 26.

[0019] The middle portion 283 extends upward from the indoor-side end of the outdoor portion 281. The middle portion 283 is disposed in an area of the lower frame 23 adjacent to the indoor side of the indoor rail 26. The middle portion 283 has a rectangular plate shape with a plate surface extending in the finder direction and the up-down direction.

[0020] The indoor side portion 284 extends indoors from the upper end of the middle portion 283. The outdoor side portion 281 extends indoors beyond the lower frame 23. The indoor side portion 284 has a rectangular plate shape with a plate surface extending horizontally.

[0021] The angle member 28 is formed as a single unit and extends across the entire area of the lower frame 23 in the left-right direction.

[0022] The multiple shoji screens 4, 5 include an outer shoji screen 4 arranged on an outdoor rail 25 and an inner shoji screen 5 arranged on an indoor rail 26. The outer shoji screen 4 is arranged to the left of the inner shoji screen 5.

[0023] The outer shoji screen 4 has a frame 41 and a face material 49.

[0024] The frame 41 is a component that forms the outer edge of the outer shoji screen 4. The frame 41 is formed in a rectangular frame shape. The frame 41 is made of aluminum, aluminum-resin composite, or resin shaped material. The frame 41 has an upper frame 42, a left vertical frame 43, a right vertical frame 44, and a lower frame 45.

[0025] The upper frame 42 is a long member extending in the left-right direction that forms the upper edge of the outer shoji screen 4. The left vertical frame 43 is a long member extending in the up-down direction that forms the left edge of the outer shoji screen 4. The right vertical frame 44 is a long member extending in the up-down direction that forms the right edge of the outer shoji screen 4. The lower frame 45 is a long member extending in the left-right direction that forms the lower edge of the outer shoji screen 4.

[0026] A pair of left and right door rollers 46 are provided on the underside of the lower frame 45. The door rollers 46 are arranged on the exterior rail 25. When the outer shoji screen 4 is moved left and right, the door rollers 46 roll on the exterior rail 25. The area between the pair of left and right door rollers 46 is referred to as an "empty area 47" (see Figure 1). The tire portions of the door rollers 46 are formed, for example, from resin.

[0027] The face material 49 is a rectangular plate material held inside the frame 41. The face material 49 is made of, for example, glass.

[0028] The inner shoji screen 5 has a frame body 51 and a face material 59.

[0029] The frame 51 is a component that forms the outer edge of the outer shoji screen 4. The frame 51 is formed in a rectangular frame shape. The frame 51 is made of aluminum, aluminum-resin composite, or resin shaped material. The frame 51 has an upper frame 52, a left vertical frame 53, a right vertical frame 54, and a lower frame 55.

[0030] The upper frame 52 is a long member extending in the left-right direction that forms the upper edge of the inner shoji screen 5. The left vertical frame 53 is a long member extending in the up-down direction that forms the left edge of the inner shoji screen 5. The right vertical frame 54 is a long member extending in the up-down direction that forms the right edge of the inner shoji screen 5. The lower frame 55 is a long member extending in the left-right direction that forms the lower edge of the inner shoji screen 5.

[0031] A pair of left and right door rollers 56 are provided on the underside of the lower frame 55. Each door roller 56 is arranged on the indoor rail 26. When the inner shoji screen 5 is moved left and right, each door roller 56 rolls on the indoor rail 26. The area between the pair of left and right door rollers 56 is referred to as an "empty area 57." The tire portions of the door rollers 56 are formed, for example, from resin.

[0032] The face material 59 is a rectangular plate material held inside the frame 51. The face material 59 is made of, for example, glass.

[0033] When the door and window fixture 1 is in the closed state, the right vertical frame 44 of the outer shoji screen 4 and the left vertical frame 53 of the inner shoji screen 5 face each other in the forward direction.

[0034] As shown in Figure 4, the fitting 1 is provided with an attachment 6 that can be detachably attached to either the area of the bottom frame 23 between the outside rail 25 and the inside rail 26, or the area of the bottom frame 23 that is adjacent to the inside of the room relative to the inside rail 26. "Removably fixed" means a fixing mode in which objects can be connected to each other with sufficient strength, the user can easily release this connected state, and the user can connect the objects to each other again in the same way.

[0035] The attachment 6 has an inter-rail attachment 61 that is removably attached to the area of the lower frame 23 between the outdoor rail 25 and the indoor rail 26, and an inner attachment 65 that is removably attached to the area of the lower frame 23 adjacent to the indoor rail 26 on the indoor side.

[0036] The rail-to-rail attachment 61 is a component that fills the space between the exterior rail 25 and the interior rail 26 and flattens the upper surface of the lower frame 23. The rail-to-rail attachment 61 has an elongated shape that extends in the left-right direction. The rail-to-rail attachment 61 has an attachment main body 62 and an end part 63.

[0037] The attachment main body 62 is made of a metal such as aluminum. The attachment main body 62 has an elongated shape. The upper surface of the attachment main body 62 is a flat surface. The attachment main body 62 has a U-shaped cross section (see FIG. 2).

[0038] The end parts 63 are parts that are operated with fingers or the like when attaching or detaching the inter-rail attachment 61. The end parts 63 are provided at the longitudinal ends of the attachment main body 62, more specifically, at both ends. The end parts 63 are made of, for example, resin. The end parts 63 are preferably made of a flame-retardant material.

[0039] The upper surfaces of the attachment main body 62 and the end part 63 are substantially flush with each other. Therefore, the upper surface of the inter-rail attachment 61 is flat. The upper end of the inter-rail attachment 61 and the upper end of the exterior rail 25 are aligned in the vertical direction. This allows the upper surface of the lower frame 23 to be made even flatter.

[0040] The inner attachment 65 is a member that fills the space formed on the indoor side of the indoor rail 26 and flattens the upper surface of the lower frame 23. The inner attachment 65 is elongated and extends in the left-right direction. The inner attachment 65 has a flat upper surface. The inner attachment 65 has an attachment main body 66 and an end part 67.

[0041] The attachment main body 66 is formed of a metal material such as aluminum. The attachment main body 66 is elongated. The upper surface of the attachment main body 66 is flat. The attachment main body 66 has a U-shaped cross section.

[0042] The end parts 67 are parts that are operated with fingers or the like when attaching or detaching the inner attachment 65. The end parts 67 are provided at the longitudinal ends of the attachment main body 66, more specifically, at both ends. The end parts 67 are made of, for example, resin. It is preferable that the end parts 67 are made of a flame-retardant material.

[0043] The upper surfaces of the attachment main body 66 and the end part 67 are substantially flush (see FIG. 3). Therefore, the upper surface of the inner attachment 65 is flat. The upper end of the inner attachment 65 and the upper end of the indoor rail 26 are aligned in the vertical direction. This allows the upper surface of the lower frame 23 to be made even flatter.

[0044] The fitting 1 is provided with a heat-foaming material 7. The heat-foaming material 7 foams when it reaches a predetermined temperature due to a fire or the like, thereby sealing gaps.

[0045] In the event of a fire, the tires of the rollers 46, 56 may melt. The melted tires may accumulate on the upper surface of the attachment 6 and become easily ignited. For this reason, particularly strict fire prevention measures are required near the bottom frame 23.

[0046] Therefore, the fitting 1 is provided with a fixing part 8 to which the heated foam material 7 can be attached and which is fixed to the bottom frame 23. The fixing part 8 is, for example, fixed so as not to be detachable to the bottom frame 23. "Fixed so as not to be detachable" means, for example, that it is not configured to be detachable by the user, but is fixed by screw connection, engagement, etc. so that it cannot be easily removed by the user.

[0047] The fixed component 8 has a first fixed component 81 provided adjacent to the inter-rail attachment 61 and a second fixed component 86 provided adjacent to the inner attachment 65.

[0048] The first fixing component 81 is made of, for example, aluminum. As shown in FIG.

[0049] The first fixed main body portion 82 is disposed adjacent to the inter-rail attachment 61 in the left-right direction. The first fixed main body portion 82 is formed in a rectangular shape in a plan view. The first fixed main body portion 82 has a first mounting portion 83 to which the heat-foaming material 7 is attached.

[0050] The first mounting portion 83 is provided on the upper part of the first fixed main body portion 82. The first mounting portion 83 is provided along the outdoor end of the first fixed main body portion 82. The first mounting portion 83 has a slit shape extending in the left-right direction. The first mounting portion 83 opens upward. The first mounting portion 83 opens at the end face of the first fixed main body portion 82 on the side of the inter-rail attachment 61 in the left-right direction. A return portion 83a extending along the opening edge on the indoor side of the first mounting portion 83 is provided on the opening edge.

[0051] The first mounting portion 83 accommodates the heat-foamable material 7A. In other words, the heat-foamable material 7 has the heat-foamable material 7A provided on the first fixing component 81. The heat-foamable material 7 has a long rectangular plate shape. The heat-foamable material 7A corresponds to the lower frame-side heat-foamable material.

[0052] The heated foaming material 7A is fixed to the first mounting portion 83, for example, by adhesive. The indoor-side edge of the heated foaming material 7A is covered by a return portion 83a. This prevents the heated foaming material 7 from detaching. The middle portion of the upper surface of the heated foaming material 7 in the indoor / outdoor direction is not covered by the first fixed main body portion 82. In other words, the heated foaming material 7A is provided on the upper surface of the first fixed part 81. This allows the heated foaming material 7 to foam upward. This makes it possible to seal the gap between the outer shoji screen 4 and the outdoor rail 25.

[0053] The first connecting portion 84 protrudes from one left-right end face of the first mounting portion 83, more specifically, from one of the left-right end faces of the first mounting portion 83 where the first mounting portion 83 is open. The first connecting portion 84 has a generally flat plate shape. The first connecting portion 84 is covered from above by the inter-rail attachment 61 (attachment main body 62). The first connecting portion 84 has a hole 84a that penetrates the first connecting portion 84.

[0054] A screw can be inserted into the hole 84a. The first fixing component 81 is fixed to the upper surface of the lower frame 23 in an undetachable manner by the screw that passes through the hole 84a. This makes it possible to prevent the position of the heat-foaming material 7 from shifting.

[0055] An engaging protrusion 83b is provided on the end of the first fixed main body portion 82 on the inter-rail attachment 61 side. The first fixed main body portion 82 and the end part 63 of the inter-rail attachment 61 abut against each other. A notch is provided on the end of the end part 63 on the first fixed component 81 side. The notch and the engaging protrusion 83b are engaged with each other. In this way, the first fixed component 81 is connected to the inter-rail attachment 61.

[0056] Furthermore, the upper surface of the first fixed main body portion 82 is flush with the upper surface of the attachment main body portion 62. This allows the upper surface of the lower frame 23 to be in a flatter state.

[0057] Furthermore, the first fixing parts 81 are respectively arranged on each of the left and right end sides of the inter-rail attachment 61. Each first fixing part 81 is provided in a portion of the lower frame 23 that overlaps in the left and right direction with at least a portion of the door roller 46 when the outer door screen 4 is in the closed state. In other words, each first fixing part 81 overlaps in the forward direction with at least a portion of the door roller 46 when the outer door screen 4 is in the closed state.

[0058] The second fixing part 86 is made of, for example, aluminum. As shown in Fig. 6, the second fixing part 86 has a second fixing main body portion 87, a pair of legs 91, a second connecting portion 93, and a cap 94.

[0059] The second fixed main body portion 87 is adjacent to the inner attachment 65 in the left-right direction. The second fixed main body portion 87 is formed in an elongated rectangular shape in a plan view. The second fixed main body portion 87 has a second mounting portion 88 to which the heat-foaming material 7 is attached.

[0060] The second mounting portion 88 is provided on the upper part of the second fixed main body portion 87. The second mounting portion 88 is provided along the outdoor-side edge of the second fixed main body portion 87. The second mounting portion 88 has a slit shape extending in the left-right direction. The second mounting portion 88 extends over the entire left-right area of the second fixed main body portion 87. The second mounting portion 88 opens upward. The second mounting portion 88 opens on each of the left-right end faces of the second fixed main body portion 87. A return portion 88a extending along the outdoor-side opening edge and the indoor-side opening edge of the second mounting portion 88 is provided, respectively.

[0061] The heat-foamable material 7B is disposed on the second mounting portion 88. In other words, the heat-foamable material 7 has a heat-foamable material 7B provided on the second fixing part 86. The heat-foamable material 7B has a long rectangular plate shape. The heat-foamable material 7B corresponds to the lower frame-side heat-foamable material.

[0062] The heated foaming material 7B is fixed to the second mounting portion 88, for example, by adhesive. The outside and inside edges of the heated foaming material 7 are each covered by a return portion 88a. This prevents the heated foaming material 7 from detaching. The upper surface of the heated foaming material 7, excluding the edges facing the inside and outside of the room, is not covered by the second fixed main body portion 87. The heated foaming material 7B is exposed on the upper surface of the second fixing part 86; more specifically, the upper surface of the heated foaming material 7B is exposed upward over almost the entire area. In other words, the heated foaming material 7B is provided on the upper surface of the second fixing part 86. This allows the heated foaming material 7 to foam upward. This allows the gap between the inner shoji screen 5 and the inside rail 26 to be sealed.

[0063] The pair of legs 91 are provided as a pair in the front-to-back direction. Of the pair of legs 91, the outdoor-side leg 91 extends downward from the outdoor-side end of the underside of the second fixed main body 87, and the indoor-side leg 91 extends downward from the indoor-side end of the underside of the second fixed main body 87. Each leg 91 abuts against the upper surface of the lower frame 23. A space is formed between each leg 91.

[0064] The second connecting portion 93 extends from the lower end of the leg portion 91 on the outdoor side. The second connecting portion 93 is, for example, substantially U-shaped and opens toward the indoor side. The opening of the second connecting portion 93 fits into the outdoor side end of the angle member 28. As a result, the second fixing part 86 is fixed to the angle member 28 and also to the bottom frame 23. In this way, the second fixing part 86 is fixed non-detachably to the bottom frame 23 via the angle member 28 fixed to the bottom frame 23. This makes it possible to prevent the position of the heated foaming material 7 from shifting.

[0065] The cap 94 is attached to one end (more specifically, the left end) in the left-right direction of the second fixed main body portion 87. The cap 94 has a lid portion 95 and an insertion portion 96.

[0066] The lid portion 95 covers the left and right ends (more specifically, the left end) of the second mounting portion 88. This prevents the heat-foamed material 7 from slipping out. The top surface of the lid portion 95 is flush with the top surface of the second fixed main body portion 87.

[0067] The insertion portion 96 is inserted below the second fixed main body portion 87, more specifically, inserted into the space between the pair of legs 91. In this way, the cap 94 is attached to the second fixed main body portion 87.

[0068] The upper surface of the first fixed main body portion 82 is flush with the upper surface of the attachment main body portion 62. This allows the upper surface of the lower frame 23 to be made even flatter.

[0069] The second fixing part 86 is provided on the end side (i.e., the right side) of the inner attachment 65 that is away from the outer shoji screen 4. The second fixing part 86 is provided on a portion of the lower frame 23 that overlaps in the left-right direction with at least a portion of the door roller 56 (more specifically, the door roller 56 of the pair of door rollers 56 that is away from the outer shoji screen 4) when the inner shoji screen 5 is in the closed state. In other words, the second fixing part 86 overlaps in the front direction with at least a portion of the door roller 56 when the outer shoji screen 4 is in the closed state.

[0070] Heat-foaming material 7C is provided in the open area 57 of the inner shoji screen 5 and the open area 47 of the outer shoji screen 4. In other words, the heat-foaming material 7 has heat-foaming material 7C provided in each of the lower frames 45, 55. Note that the heat-foaming material 7C corresponds to the shoji-side heat-foaming material.

[0071] Each of the heat-foamed materials 7C has a long rectangular plate shape and is provided without interruption in each of the open areas 47, 57. More specifically, each of the heat-foamed materials 7C is disposed across the entire left-right area of each of the open areas 47, 57.

[0072] According to the fitting 1 of this embodiment, the following effects are achieved.

[0073] According to this embodiment, the fitting 1 comprises an attachment 6 that is detachably attached to either the region of the bottom frame 23 between the exterior rail 25 and the interior rail 26, or the region of the bottom frame 23 adjacent to the interior rail 26 on the indoor side, and a fixing part 8 that is provided adjacent to the attachment 6 and fixed to the bottom frame 23. The heat-foaming material 7 has heat-foaming materials 7A and 7B that are provided on the upper surface of the fixing part 8.

[0074] With this configuration, the heat-foaming materials 7A, 7B can foam upward from the fixing part 8. This allows the gap between the sash 23 and the shoji screens 4, 5 to be sealed. Furthermore, if the heat-foaming materials 7A, 7B move from their predetermined positions, there is a risk that the gap between the sash 23 and the shoji screens 4, 5 may not be sealed properly. Therefore, the fixing part 8 on which the heat-foaming materials 7A, 7B are provided is fixed to the sash 23. This prevents the heat-foaming materials 7A, 7B from moving unexpectedly. Therefore, it is possible to provide a fitting that can improve fire resistance.

[0075] According to this embodiment, the attachment 6 has an inter-rail attachment 61 that is detachably attached to the region of the lower frame 23 between the exterior rail 25 and the interior rail 26. The fixing component 8 has a first fixing component 81 that is provided adjacent to the inter-rail attachment 61. The first fixing component 81 is provided with a heat-foaming material 7A.

[0076] According to this configuration, the fire prevention performance of the fitting 1 provided with the inter-rail attachment 61 can be improved.

[0077] According to this embodiment, the attachment 6 has an inner attachment 65 that is detachably attached to an area of the lower frame 23 that is adjacent to the indoor side of the indoor rail 26. The fixing part 8 has a second fixing part 86 that is provided adjacent to the inner attachment 65. The second fixing part 86 is provided with a heated foam material 7B.

[0078] According to this configuration, the fire prevention performance of the fitting 1 provided with the inner attachment 65 can be improved.

[0079] According to this embodiment, the upper surface of the inter-rail attachment 61 is flush with the upper surface of the first fixed component 81. Furthermore, the upper surface of the inner attachment 65 is flush with the upper surface of the second fixed component 86.

[0080] According to this configuration, the portions of the lower frame 23 where the first fixing component 81 and the second fixing component 86 are provided can also be made flat. This allows the upper surface of the lower frame 23 to be made even flatter.

[0081] According to this embodiment, the outer shoji screen 4 has a lower frame 45 and door rollers 46, 56 provided on the lower frame 55. The first fixed part 81 is provided on a portion of the lower frame 23 that is positioned in the same left-right direction as the door roller 46 when the outer shoji screen 4 is in a closed state. The inner shoji screen 5 has a lower frame 55 and a door roller 56 provided on the lower frame 55. The second fixed part 86 is provided on a portion of the lower frame 23 that is positioned in the same left-right direction as at least a portion of the door roller 56 when the inner shoji screen 5 is in a closed state.

[0082] With this configuration, when the outer screen 4 is closed, the heated foaming material 7A overlaps at least a portion of the door roller 46 in the forward direction. When the outer screen 4 is closed, the heated foaming material 7B overlaps at least a portion of the door roller 56 in the forward direction. Therefore, in the event of a fire, the expanded heated foaming materials 7A and 7B can prevent the melted tire from flowing into the interior of the room, thereby improving fire resistance.

[0083] According to this embodiment, the heat-foaming material 7 has heat-foaming material 7C provided in each of the lower frames 45 and 55. If the areas on the underside of the lower frames 45 and 55 where the door rollers 46 and 56 are not provided are defined as empty areas 47 and 57, respectively, the heat-foaming material 7C is provided in the empty areas 47 and 57, respectively.

[0084] With this configuration, in the event of a fire, the gap between the bottom frame 23 and the shoji screens 4, 5 that is not blocked by the heated foaming materials 7A, 7B can be blocked by the heated foaming material 7C. This makes it possible to more reliably block the gap between the bottom frame 23 and the shoji screens 4, 5.

[0085] According to this embodiment, the heat-foamed material 7C is provided without any gaps in the left-right direction in the open area 47. Moreover, the heat-foamed material 7C is provided without any gaps in the left-right direction in the open area 57.

[0086] This allows the gap between the bottom frame 23 and the shoji screens 4, 5 to be more reliably sealed.

[0087] Although one embodiment of the fittings of the present disclosure has been described above, the fittings of the present disclosure can be modified as appropriate.

[0088] In the above embodiment, the fitting 1 is a double-panel sliding window, but the type of fitting is not limited to this. For example, the fitting may be a so-called four-panel sliding window.

[0089] In the above embodiment, the first fixing part 81 is made of aluminum, but the material of the first fixing part 81 is not limited to this. The first fixing part 81 may be made of, for example, resin. In this case, the resin constituting the first fixing part 81 is preferably a flame-retardant resin.

[0090] In the above embodiment, the second fixing part 86 is made of aluminum, but the material of the second fixing part 86 is not limited to this. The second fixing part 86 may be made of, for example, resin. In this case, the resin constituting the second fixing part 86 is preferably a flame-retardant resin.

[0091] However, because the second fixing part 86 is positioned relatively close to the interior of the room, heat from the outside of the room is relatively difficult to transfer to the second fixing part 86. In the event of a fire, it is preferable that the heated foaming material 7B foam as quickly as possible. For this reason, the second fixing part 86 is preferably made of aluminum. In this case, because aluminum has excellent heat conductivity, the temperature of the second fixing part 86 rises more quickly than if it were made of resin. This makes it possible to prevent delays in foaming of the heated foaming material 7B.

[0092] In the above embodiment, the first fixing part 81 is fixed to the lower frame 23 by screw fixing, but the fixing method of the first fixing part 81 is not particularly limited as long as the first fixing part 81 can be fixed undetachably to the lower frame 23. For example, the first fixing part 81 may be fixed to the lower frame 23 by fitting the first fixing part 81 and the lower frame 23 together.

[0093] In the above embodiment, the second fixing part 86 was fixed to the lower frame 23 by fitting the second fixing part 86 with the angle member 28 fixed to the lower frame 23, but the fixing method of the second fixing part 86 is not particularly limited as long as the second fixing part 86 can be fixed to the lower frame 23 in an undetachable manner. For example, the second fixing part 86 may be fixed to the lower frame 23 by screw fixing. Furthermore, the angle member 28 is not an essential component.

[0094] In the above embodiment, the first fixing parts 81 were arranged on both left-right end sides of the inter-rail attachment 61, but they may be arranged on only one end side. However, the configuration of the above embodiment is preferable in that it can more reliably seal the gap between the shoji screens 4, 5 and the lower frame 23. Also, in the above embodiment, the second fixing part 86 was arranged only on the right side of the inner attachment 65, but the second fixing part 86 may be arranged on both left-right end sides of the inner attachment 65.

[0095] The configuration of the first mounting portion 83 of the first fixing part 81 and the configuration of the second mounting portion 88 of the second fixing part 86 are not limited to those of the above embodiment, as long as the heated foamed material is exposed on the upper surface of the fixing part and can be reliably fixed to the fixing part.

[0096] In the above embodiment, the heat-foaming material 7C is provided in a continuous manner in each of the open spaces 47, 57, but this is not limited to this. Multiple shoji-side heat-foaming materials may be provided side by side in a single open space. However, the configuration of the above embodiment is preferable because it can more reliably seal the gap between the shoji screens 4, 5 and the bottom frame 23. Furthermore, multiple bottom frame-side heat-foaming materials may be provided on a single fixed part.

[0097] [Aspect 1] A fitting comprising a lower frame, a plurality of shoji screens, an exterior rail attached to the lower frame, extending in the left-right direction and guiding the shoji screens, an interior rail attached to the lower frame at a distance from the exterior rail toward the interior of the room, extending in the left-right direction and guiding the shoji screens, an attachment that can be detachably attached to either the area of the lower frame between the exterior rail and the interior rail, or the area of the lower frame adjacent to the interior rail toward the interior of the room, a heated foam material, and a fixed part that is attached adjacent to the attachment and fixed to the lower frame, wherein the heated foam material has a lower frame-side heated foam material attached to the upper surface of the fixed part. [Aspect 2] The attachment has a rail-to-rail attachment that is removably attached to the area of the lower frame between the outdoor rail and the indoor rail, and the fixing part has a first fixing part that is arranged adjacent to the rail-to-rail attachment. [Aspect 3] The attachment has an inner attachment that is removably attached to the area of the lower frame that is adjacent to the indoor side of the indoor rail, and the fixed part has a second fixed part that is arranged adjacent to the inner attachment.This is a fitting described in aspect 1 or 2. [Aspect 4] Aspect 4. The fitting according to any one of aspects 1 to 3, wherein an upper surface of the attachment and an upper surface of the fixing part are flush with each other. [Aspect 5] A fitting according to any one of aspects 1 to 4, wherein the shoji screen has a bottom frame and a door roller attached to the bottom frame, and the fixing part is attached to a part of the bottom frame that overlaps with at least a part of the door roller in the left-right direction when the shoji screen is in a closed state. [Aspect 6] A fitting described in any one of aspects 1 to 5, wherein the shoji screen has a bottom frame and a roller attached to the bottom frame, the heat-foaming material has a shoji-side heat-foaming material attached to the bottom frame, and the area on the underside of the bottom frame where the roller is not attached is considered to be an empty area, and the shoji-side heat-foaming material is attached to the empty area. [Aspect 7] The fitting according to aspect 6, wherein the shoji-side heating foaming material is provided without any gaps in the left-right direction in one of the open areas. [Explanation of symbols]

[0098] 1: Door and fixture, 4: Outer shoji screen (shoji screen), 5: Inner shoji screen (shoji screen), 6: Attachment, 7: Heated foam material, 7A, 7B: Heated foam material (heated foam material on the bottom frame side), 7C: Heated foam material (heated foam material on the shoji screen side), 8: Fixing part, 23: Bottom frame, 25: Outdoor rail, 26: Indoor rail, 45, 55: Bottom frame, 46, 56: Door rollers, 47, 57: Open space, 61: Attachment between rails, 65: Inner attachment, 81: First fixing part, 86: Second fixing part.

Claims

1. The bottom frame and With multiple shoji screens, An exterior rail provided on the lower frame, extending in the left-right direction, and guiding the shoji screen; An indoor rail that is provided on the lower frame at a distance from the outdoor rail toward the indoor side and extends in the left-right direction to guide the shoji screen; an attachment that is detachably attached to either a region of the lower frame between the outdoor rail and the indoor rail or a region of the lower frame adjacent to the indoor rail on the indoor side; A heated foaming material; a fixing part provided adjacent to the attachment and fixed to the lower frame; Equipped with The heating foaming material is a building material having a lower frame side heating foaming material provided on the upper surface of the fixed part.

2. The attachment has an inter-rail attachment that is detachably attached to a region of the lower frame between the outdoor rail and the indoor rail, The fixture according to claim 1 , wherein the fixing part comprises a first fixing part provided adjacent to the inter-rail attachment.

3. The attachment includes an inner attachment that is detachably attached to a region of the lower frame that is adjacent to the indoor side of the indoor rail, The fixture according to claim 1 , wherein the fixing part has a second fixing part provided adjacent to the inner attachment.

4. The fixture according to any one of claims 1 to 3, wherein the upper surface of the attachment and the upper surface of the fixed part are flush with each other.

5. The shoji screen has a lower frame and a door roller provided on the lower frame, The fixing part is provided in a part of the lower frame that overlaps in the left-right direction with at least a part of the door roller when the shoji screen is in a closed state.

6. The heat-foaming material has a shoji-side heat-foaming material provided on the bottom frame, If the area on the underside of the bottom frame where the door rollers are not provided is defined as an empty area, The fitting according to claim 5, wherein the shoji-side heating foam material is provided in the open area.

7. The fitting according to claim 6, wherein the shoji-side heating foaming material is provided without gaps in the left-right direction in one of the open areas.

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