Opening building member

Abstract

To provide an opening building member capable of improving thermal insulation.SOLUTION: The opening building member includes an upper frame 17 and sashes 12a and 12b. The upper frame 17 has sash guide grooves 48a and 48b for guiding the upper portions of the sashes 12a and 12b. The sashes 12a and 12b consist of a metal profile 68 located on the outside of the room and a resin profile 69 located on the inside of the room. The metal profile 68 and the resin shaping member 69 have a hollow portion 80 on the outer periphery of the glass opening 78, and the hollow portion 80 engages with the sash guide grooves 48a and 48b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a building material for openings that is installed in openings of buildings. [Background technology]

[0002] BACKGROUND ART Conventionally, building materials for openings in buildings have been known in which a shoji screen is slidably mounted within a frame attached to the opening. In such building materials for openings, there is a demand for improved thermal insulation. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-mentioned circumstances, an object of the present invention is to provide a building material for openings that can improve heat insulation properties. [Means for solving the problem]

[0004] In order to achieve the above object, the opening construction material according to the invention described in claim 1 comprises an upper frame and a shoji screen, the upper frame having a shoji screen guide groove that guides the upper part of the shoji screen, the shoji screen being made up of a metal profile located on the outside of the room and a resin profile located on the inside of the room, the metal profile and the resin profile having a hollow portion on the outer periphery of the glass opening, and the hollow portion engaging with the shoji screen guide groove. [Effects of the Invention]

[0005] The opening building material according to the invention described in claim 1 comprises an upper frame and a shoji screen, the upper frame having a shoji guide groove that guides the top of the shoji screen, the shoji screen being made up of a metal profile located on the outside of the room and a resin profile located on the inside of the room, the metal profile and the resin profile having a hollow portion on the outer periphery of the glass opening, and the hollow portion is engaged with the shoji guide groove, thereby suppressing heat transfer from inside to outside through the shoji screen, improving insulation and enabling the visible dimensions of the shoji screen to be reduced. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 3 is an enlarged longitudinal cross-sectional view showing the upper frame side of FIG. 2. [Figure 2] 1 is a vertical cross-sectional view showing an embodiment of a building material for openings of the present invention. [Figure 3] FIG. [Figure 4] FIG. 3 is an enlarged longitudinal cross-sectional view showing the lower frame side of FIG. 2. [Figure 5] This is a view of the upper frame of the same opening building material from below. [Figure 6] FIG. 10 is a vertical cross-sectional view showing another embodiment of the building material for openings of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 5 show one embodiment of the building material for openings of the present invention. This building material for openings is applied to a renovated sash for a building, and as shown in Figures 2 and 3, the window frame (existing frame 10) already installed in the building's framework opening 9 is left as it is, a new window frame (new frame 11) is installed on the inner periphery of the existing frame 10, and new outer and inner shoji screens 12a and 12b are attached to the new frame 11 to renovate the window.

[0008] As shown in Figures 2 and 3, the existing frame 10 is composed of an existing lower frame 8, an existing upper frame 13, and existing vertical frames 14, 14 on the left and right, forming a framework on all four sides, and each frame material 8, 13, 14 is fixed to the main body 15 with anchors 16. The new frame 11 is made up of a four-sided framework consisting of a new lower frame 1, a new upper frame 17, and new left and right vertical frames 18, 18. Both the existing frame 10 and the new frame 11 are window frames for sliding windows. The existing frame 10 has a projected dimension D of 70 mm, while the new frame has a projected dimension A of 90 to 130 mm, which is larger than the existing frame 10, and as a result, this opening building material has improved insulation performance.

[0009] As shown in Figures 2 and 3, the outer shoji screen 12a and the inner shoji screen 12b are formed by framing an upper frame 62, a lower frame 63, a door edge frame 60, and a door joint frame 64, with double-glazed glass 65 fitted inside. Each frame 62, 63, 60, 64 is made up of a metal profile (aluminum profile) 68 located on the outside of the room and a resin profile 69 located on the inside of the room, and combined with the use of double-glazed glass 65, the shoji screens 12a and 12b have high thermal insulation performance.

[0010] As shown in Figure 2, an upper frame support member 45 is attached to the inner periphery of the existing upper frame 13. The new upper frame 17 is attached to the upper frame support member 45 with screws 47 from the inner periphery, after spacers 46 are inserted appropriately into the gap between the new upper frame 17 and the upper frame support member 45. The newly installed upper frame 17 has an outer shoji guide groove (outside shoji guide groove) 48a and an inner shoji guide groove (inside shoji guide groove) 48b with a roughly U-shaped cross section that opens toward the inner periphery, and the upper part of the outer shoji 12a is guided into the outer shoji guide groove 48a, and the upper part of the inner shoji 12b is guided into the inner shoji guide groove 48b. The inner shoji guide groove 48b is covered with a resin cover 49.

[0011] As shown in Figure 1, an airtight material 67a is provided within the outer shoji guide groove 48a, hanging down from the top of the outer shoji guide groove 48a and abutting the outer shoji 12a. The airtight material 67a abuts against the outside end of the flat-formed upper surface 62a of the upper frame 62 of the outer shoji 12a. The airtight material 67a is also provided within the outer shoji guide groove 48a in the range where the closed outer shoji 12a is located, as shown in Figure 5. As shown in Figure 1, an airtight material 67b is provided within the inner shoji guide groove 48b, hanging down from the top of the inner shoji guide groove 48b and abutting against the inner shoji 12b. The airtight material 67b abuts against the outdoor end of the flat upper surface 62a of the upper frame 62 of the inner shoji 12b. As shown in Figure 5, the airtight material 67b is provided within the inner shoji guide groove 48b in the area where the closed inner shoji 12b is located. As shown in Figure 5, a windstop plate 81 is provided in the outer shroud guide groove 48a and the inner shroud guide groove 48b at the center position in the left-right direction of the upper frame 12, and the windstop plate 81 abuts against the upper ends of the joint frames 64, 64 of the inner and outer shrouds 12a, 12b.

[0012] This opening building material has airtight materials 67a, 67b that abut against the upper surfaces 62a of the upper frames 62 of the outer shoji 12a and inner shoji 12b in the outer shoji guide groove 48a and inner shoji guide groove 48b, thereby preventing cold air from outside from entering the room between the newly installed upper frame 17 and the upper frames 62 of the shoji 12a, 12b. Furthermore, since the airtight materials 67a, 67b abut against the outdoor end of the upper surface 62a of the upper frame 62, the cold air from outside is blocked outside the room, and the area of ​​the upper frame 62 that is cooled by the cold air from outside is reduced, thereby improving insulation properties.

[0013] As shown in Fig. 1, a heat transfer suppression member 70 is provided in the inner shoji guide groove 48b to narrow the space within the groove. As shown in Fig. 5, the heat transfer suppression member 70 is provided on the indoor side of the closed outer shoji 12a. The heat transfer suppression member 70 is formed from a resin profile, and as shown in Fig. 1, has an upper wall 71, a lower wall 72, and connecting walls 73, 73 that connect the upper wall 71 and the lower wall 72 on the indoor and outdoor sides, and has a hollow portion. The lower wall 72 divides the space within the inner shoji guide groove 48b into upper and lower sections, and forms a heat insulating layer 74 between the cover 49 and the heat transfer suppression member 70. The heat transfer suppression member 70 is attached to the cover 49 from the inner circumferential side so as to be freely attached and detached, by engaging the indoor end of the upper wall 71 with an engagement groove 75 formed in the cover 49 and resiliently engaging the claw piece 76 formed on the outdoor end of the upper wall 71 with a groove 77 for attaching the airtight material 67b.

[0014] In this opening building material, the inner shoji guide groove 48b is covered with a resin cover 49, and a heat transfer suppression member 70 is provided on the indoor side of the closed outer shoji 12a within the inner shoji guide groove 48b to narrow the space within the groove, thereby preventing heat from inside the room from escaping to the outside through the newly installed upper frame 17, thereby improving insulation properties.

[0015] As shown in Figures 1 and 2, a resin frame 50 is provided between the new upper frame 17 and the existing frame 36, and the resin frame 50 covers the existing upper frame 13 and the new upper frame 17 from the inside of the room. The resin frame 50 has a protrusion 51 that protrudes toward the outer periphery at the outside end of the room, and by inserting the protrusion 51 into a groove 52 formed in the cover 49 of the new upper frame 17, it is possible to absorb any vertical error in the installation position of the new upper frame 17.

[0016] As shown in Figure 1, the upper frame 62 of the outer shoji screen 12a and the inner shoji screen 12b is made up of a metal profile 68 located on the outside of the room and a plastic profile 69 located on the inside of the room, and the metal profile 68 and the plastic profile 69 form a glass opening 78 with an approximately U-shaped cross section that is open on the inner periphery side, and the double-glazed glass 65 is held in the glass opening 78 via a glass channel 79. The upper surface 62a of the upper frame 62 is formed flat. The metal profile 68 and the resin profile 69 each have a hollow portion 80 on the outer periphery of the glass opening 78, and the upper frame 62 engages with the shoji guide grooves 48a, 48b at the hollow portion 80. As a result, the visible dimension H of the upper frame 62 of this opening building material is significantly smaller than that of conventional materials, and as a result, the area of ​​the double-glazed glass 65 is larger, improving visibility and insulation.

[0017] Furthermore, as described above, the upper surfaces 62a of the upper frames 62 of the shoji screens 12a, 12b of this opening building material are formed flat, and the upper portions of the upper frames 62 are engaged with the shoji guide grooves 48a, 48b of the newly installed upper frame 17. Therefore, when attaching or detaching the shoji screens 12a, 12b to or from the newly installed frame 11 by pushing them up or down, it is only necessary to lift the shoji screens 12a, 12b slightly, making it easy to attach or detach the shoji screens 12a, 12b, and since the upper surfaces 62a of the upper frames 62 are flat, cleaning is also easy, making it easy to use. The upper surface 62a of the upper frame 62 may be formed substantially flat, and may have some steps or protrusions.

[0018] As shown in Figure 4, the existing lower frame 8 has a stepped shape with an upper surface 19 that gradually becomes lower as it approaches the outside of the room, and an outer rail 20 and an inner rail 21 are formed to protrude upward from the upper surface 19, with the outer rail 20 being cut away near its base. A support bracket 23 that supports the new sill 1 is attached to the rear wall 22 of the existing sill 8 by fixing it with screws 24 from the outside of the room. A receiving bracket 25 is attached to the inner rail 21 by fixing it with screws 26 from the outside of the room, and a spacer 27 is appropriately placed between the underside of the support bracket 23 and the top of the receiving bracket 25, and the support bracket 23 is supported from below by the receiving bracket 25 to prevent it from dropping. In addition, a support bracket 28 is also provided at the outside end of the existing sill 8, and this support bracket 28 supports the outside part of the new sill 1 to prevent it from dropping.

[0019] As shown in FIG. 4, the new lower frame 1 has a main body 2 made of an extruded aluminum alloy material, and covers 6a, 6b, and 6c made of resin material placed on the main body 2. The upper surface 29 of the main body 2 is inclined so that it becomes lower as it approaches the outside of the room, and the outer rail 3 and inner rail 4 protrude upward from the inclined upper surface 29 and are provided with a gap between them in the indoor and outdoor directions. The outer rail 3 and inner rail 4 are formed at the same height, and an engagement part 31 for the door roller 30 is formed at the upper end, and a weatherstripping material 32 is attached below the engagement part 31 facing the outside of the room. The main body 2 has an extension portion 5 on the indoor side that extends further toward the room than the rear wall 22 of the existing lower frame 8. A space 33 is formed on the outer periphery of the extension portion 5, and the upper end of the rear wall 22 of the existing lower frame 8 and an angle 34 fit into this space 33. A cover mounting piece 35 protrudes from the inner periphery of the extension portion 5. A resin frame 37 is provided on the upper surface of the existing frame 36 on the indoor side of the extension portion 5, abutting against the extension portion 5. The main body 2 is placed on support fittings 23, 28 provided on the existing lower frame 8 and fixed with screws 38 from the inner periphery side.

[0020] The covers 6a, 6b, and 6c include an inter-rail cover 6a attached between the outer rail 3 and the inner rail 4, an indoor cover 6b attached to the indoor side of the inner rail 4, and an extension cover 6c that covers the extension 5, and the inter-rail cover 6a, the indoor cover 6b, and the extension cover 6c form a substantially flat upper surface 7 of the lower frame. The rail-to-rail cover 6a has its outside end engaged with a protrusion 39 that protrudes from the outer rail 3 toward the interior of the room, and its inside end abutting against the base of the inner rail 4, sealing the space between the outer rail 3 and the inner rail 4. The top surface of the rail-to-rail cover 6a is approximately the same height as the top ends of the outer rail 3 and the inner rail 4. A groove 41 is formed on the interior side of the rail-to-rail cover 6a, into which a hanging piece 40 of the inner shoji screen 12b is inserted. A reinforcing member 42 made of aluminum extrusion is provided on the back side of the rail-to-rail cover 6a. The indoor cover 6b is formed with a roughly U-shaped cross section that is open on the outer periphery, and its outdoor end is engaged with a protrusion 43 that protrudes from the inner rail 4 toward the indoor side, and its indoor end is engaged with a cover mounting piece 35 that protrudes from the extension part 5, and it covers the upper surface of the main body 2 between the inner rail 4 and the cover mounting piece 35. The upper surface of the indoor cover 6b is at roughly the same height as the upper end of the inner rail 4. The extension cover 6c has its exterior end engaged with a locking portion 44 formed on the cover mounting piece 35, and is placed on the resin frame 37, covering the main body 2 in a continuous manner with the interior cover 6b.

[0021] In this way, this opening building material is composed of a new lower frame 1 made up of a main body 2 and resin covers 6a, 6b, and 6c attached to the main body 2. The covers 6a, 6b, and 6c are the inter-rail cover 6a, the indoor cover 6b, and the extension cover 6c, respectively, and these covers 6a, 6b, and 6c form a substantially flat upper surface 7 of the lower frame, which makes it easy to clean the lower frame 1 and does not obstruct passage between the outer rail 3 and the inner rail 4, making it easy to use. Also, by covering the main body 2 with the covers 6a, 6b, and 6c, it is possible to improve the heat insulation performance and improve the design. This opening building material has an extension 5 on the main body 2 that extends indoors beyond the rear wall 22 of the existing sill 8, and the new sill 1 is positioned as close to the indoors as possible. This allows the projected dimension A of the new frame 11 (the projected dimension excluding the extension 5 and extension cover 6c of the new sill 1) to be as large as 90-130 mm, while the protrusion dimension B of the new sill 1 to the outside of the room from the existing sill 8 can be reduced to 0-30 mm (see Figure 4). This improves the insulation performance of this opening building material, and improves usability by preventing the new sill 1 from getting in the way when passing through outdoors. Furthermore, the new frame 11 can be easily installed even if there is an obstacle on the outdoor side. Furthermore, by providing the extension portion 5 on the main body 2 in this manner, the height C of the approximately flat lower frame upper surface 7 from the frame (existing frame) 36 can be reduced to 15 mm or less, thereby increasing the effective opening area.

[0022] As shown in Figure 3, a vertical frame support member 53 is attached to the inner periphery of the existing vertical frame 14. The new vertical frame 18 is attached to the vertical frame support member 53 with screws 55 from the inner periphery after spacers 54 are inserted appropriately into the gap between the new vertical frame 18 and the vertical frame support member 53. The new vertical frame 18 has a resin cover 56 attached to the interior side, covering the inner periphery. The cover 56 has an integral face wall 57 that protrudes toward the interior, and the face wall 57 is hollow. Furthermore, a cover material 58 is attached to the exterior side of the cover 56 on the new vertical frame 18 on the door end side of the outer shoji screen 12a, and the cover material 58 fills the space between the cover 56 and the door end frame 60 of the outer shoji screen 12a. A resin frame 61 is provided between the new vertical frame 18 and the existing frame 36, and the resin frame 61 covers the existing vertical frame 14 and the new vertical frame 18 from the inside of the room. The resin frame 61 has a protrusion 51 that protrudes toward the outer periphery at the outside end of the room, and by inserting the protrusion 51 into a groove 52 formed in the cover 56 of the new vertical frame 18, it is possible to absorb any left-right error in the mounting position of the new vertical frame 18.

[0023] Next, an example of the construction procedure for this opening building material will be explained. First, in preparation for installing the new frame 11, the outer rail 20 of the existing lower frame 8 is removed, and then the receiving bracket 25 and the support brackets 23, 28 are attached to the existing lower frame 8. Next, the upper frame reinforcement material 45 is attached to the existing upper frame 13, and the vertical frame reinforcement material 53 is attached to the existing vertical frame 14. Next, the new frame 11 is fitted onto the inner periphery of the existing frame 10 from the outside of the room, and the main body 2 of the new lower frame 1 is placed on the support fittings 23, 28. At this time, the outside ends of the support fittings 23, 28 are brought into contact with the step portion 66 of the main body 2 (see Figure 4), thereby positioning the new lower frame 1 in the indoor / outdoor direction. Next, the main body 2 of the new lower frame 1 is fixed to the support bracket 23 with screws 38 from the inner side. Next, a spacer 46 is inserted into the gap between the upper frame reinforcement material 45 and the new upper frame 17, and the new upper frame 17 is fixed to the upper frame reinforcement material 45 from the inner side with screws 47. A spacer 54 is inserted into the gap between the vertical frame reinforcement material 53 and the new vertical frame 18, and the new vertical frame 18 is fixed to the vertical frame reinforcement material 53 from the inner side with screws 55. Next, the resin frames 37, 50, and 61 are attached to the interior side of the new frame 11. Next, the rail-to-rail cover 6a, the indoor cover 6b, and the extension cover 6c are attached to the main body 2 of the newly installed lower frame 1. Finally, the outer shoji screen 12a and the inner shoji screen 12b are fitted into the newly installed frame 11 using a vertical kendon method.

[0024] Figure 6 shows another embodiment of the building material for openings of the present invention. This building material for openings differs from those described so far in the shape of the heat-transfer suppressing member 70 installed in the inner shoji guide groove 48b of the new upper frame 17. The heat-transfer suppressing member 70 is formed into a plate shape from resin, and its upper end is engaged with an engaging groove 75 formed in the cover 49 that covers the inner shoji guide groove 48b. The heat-transfer suppressing member 70 is installed so as to slope downward toward the outside of the room, and an insulating layer 74 is formed between the heat-transfer suppressing member 70 and the cover 49. As with the previously described embodiments, the opening building material of this embodiment also has improved insulation properties because the heat transfer suppression member 70 prevents indoor heat from escaping through the newly installed upper frame 17 to the outside.

[0025] As described above, this opening building material comprises an upper frame (new upper frame) 17, an outer shoji screen 12a, and an inner shoji screen 12b. The upper frame 17 has shoji guide grooves 48a, 48b that guide the upper parts of the outer shoji screen 12a and the inner shoji screen 12b. The shoji guide groove 48a on the outside of the room (outer shoji guide groove) has an airtight material 67a that hangs down from the upper part of the shoji guide groove 48a in the range where the closed outer shoji screen 12a is located and abuts against the outer shoji screen 12a. The shoji guide groove 48b on the inside of the room has an airtight material 67a that hangs down from the upper part of the shoji guide groove 48a in the range where the closed outer shoji screen 12a is located and abuts against the outer shoji screen 12a. In the area where the closed inner shoji screen 12b is located, an airtight material 67b hangs down from the top of the shoji screen guide groove 48b and abuts against the inner shoji screen 12b, and a heat transfer suppression member 70 is provided on the indoor side of the outer shoji screen 12a to narrow the space within the groove (see Figures 1 and 5).This means that the airtight materials 67a, 67b prevent cold air from outside from entering the room, and the heat transfer suppression member 70 prevents heat from inside the room from escaping to the outside through the upper frame 17, thereby improving insulation. The airtight materials 67a, 67b abut against the outdoor end of the upper surface of the outer screen 12a and the inner screen 12b (see Figure 1), blocking the cold air from outside the room and reducing the area of ​​the outer screen 12a and the inner screen 12b that is cooled by the cold air from outside, thereby further improving the insulation properties. The outer shoji 12a and the inner shoji 12b have an upper surface 62a of the upper frame 62 that is formed to be approximately flat, making them easy to attach and detach and easy to clean, making them easy to use.

[0026] This opening building material comprises an upper frame (new upper frame) 17 and shoji screens (outer shoji screen, inner shoji screen) 12a, 12b. The upper frame 17 has shoji screen guide grooves 48a, 48b that guide the upper parts of the shoji screens 12a, 12b. The shoji screens 12a, 12b are made up of a metal profile 68 located on the outside of the room and a plastic profile 69 located on the inside of the room. The metal profile 68 and the plastic profile 69 have a hollow section 80 on the outer periphery of the glass opening 78, and the hollow section 80 engages with the shoji screen guide grooves 48a, 48b (see Figure 1), thereby suppressing heat transfer in the indoor / outdoor directions through the shoji screens 12a, 12b, improving insulation and enabling the visible dimension H of the shoji screens 12a, 12b to be reduced. The upper surface 62a of the upper frame 62 of the shoji screens 12a and 12b is formed to be approximately flat, which makes it easy to attach and detach the shoji screens 12a and 12b and to clean them, making them easy to use.

[0027] The present invention is not limited to the above-described embodiments. The cross-sectional shape and material of the upper frame and the upper stile of the shoji screen can be changed as appropriate. The structure of the shoji screen is not important. The present invention is not limited to sliding sashes, but can also be applied to single-sliding sashes that have only one openable shoji screen within the frame. Furthermore, the present invention is not limited to renovated sashes, but can also be applied to sashes installed in openings in newly constructed buildings. [Explanation of symbols]

[0028] 12a Outer Shoji (Shoji) 12b Inner Shoji (Shoji) 17 New upper frame (upper frame) 48a Outer shoji guide groove (shoji guide groove) 48b Inner shoji guide groove (shoji guide groove) 67a, 67b Airtight material 68 Metal Extrusions 69 Resin Extruded Materials 70 Heat transfer suppression member 78 Glass Frontage 80 Hollow part

Claims

[Claim 1] An opening building material comprising an upper frame and a shoji screen, the upper frame having a shoji screen guide groove for guiding the upper part of the shoji screen, the shoji screen being made up of a metal profile located on the outside of the room and a resin profile located on the inside of the room, the metal profile and the resin profile having a hollow portion on the outer periphery of the glass opening, the hollow portion engaging with the shoji screen guide groove.

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