Building materials
The integration of fixed-length reinforcing materials and thermally expandable fire-resistant materials in sliding window frames addresses cost and fireproofing issues by preventing warping and sealing gaps, ensuring effective fire resistance.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-02-15
- Publication Date
- 2026-03-12
AI Technical Summary
Existing sliding windows require custom reinforcing materials for inner joint frames of varying lengths, increasing costs, and omitting these materials compromises fireproofing due to potential warping and gaps that allow flames to enter.
A fixed-length reinforcing material is integrated with projection pieces and a locking device, combined with thermally expandable fire-resistant materials to reinforce both outer and inner joint frames, ensuring fireproofing and cost efficiency.
The solution maintains fireproofing by preventing warping and sealing gaps between joint frames, reducing material preparation costs and enhancing structural integrity during fires.
Smart Images
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a fitting in which a reinforcing material is placed in the hollow portion of each of the outer and inner joint frames of a sliding window, a double-hung window, etc. [Background technology]
[0002] Conventionally, sliding windows have been known as building fixtures, in which an outer shoji screen and an inner shoji screen are arranged within a window frame so that they can be slid left and right (see Patent Document 1). In this sliding window, the outer shoji screen is constructed by assembling an upper frame, a lower frame, a door edge stile, an outer joint frame, and a surface material, while the inner shoji screen is constructed by assembling an upper frame, a lower frame, a door edge stile, an inner joint frame, and a surface material. The outer joint frame and the inner joint frame have hollow portions that run vertically, and reinforcing materials are arranged in each hollow portion. Furthermore, the reinforcing material arranged in the hollow portion of the inner joint frame extends the entire length of the inner joint frame, from the upper end to the lower end. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Publication No. 2020-204258 Summary of the Invention [Problem to be solved by the invention]
[0004] Incidentally, in the sliding window described in Patent Document 1, the reinforcing material placed in the hollow portion of the inner joint frame extends the entire length of the inner joint frame from the top to the bottom, so reinforcing materials must be prepared each time for inner joint frames of various lengths, making it difficult to reduce costs. It is also possible to consider not placing reinforcing material in the hollow portion of the inner joint frame, but in this case the heat during a fire could cause the inner joint frame to warp.If this warping occurs in the inner joint frame, a gap will form between the outer joint frame and the inner joint frame, and flames and other elements could enter through this gap, reducing the flame-proofing properties.
[0005] An object of the present invention is to provide a building material that can reduce costs and maintain flame-proofing properties in the event of a fire. [Means for solving the problem]
[0006] The fittings of the present invention comprise a frame body having an upper frame, a lower frame, and left and right vertical frames, and an outer shoji screen and an inner shoji screen arranged within the frame body, at least one of the outer shoji screen and the inner shoji screen being slidable within the frame body, the outer shoji screen having a cylindrical outer joint frame with a hollow portion, the inner shoji screen having a cylindrical inner joint frame with a hollow portion, a smoke deflector being formed between the outer joint frame and the inner joint frame, a reinforcing material for reinforcing the outer joint frame being arranged in the hollow portion of the outer joint frame over the entire length of the outer joint frame, and a fixed length reinforcing material for reinforcing the inner joint frame being arranged in the hollow portion of the inner joint frame. A fixed length reinforcing material is arranged, and the fixed length reinforcing material is formed integrally with a first reinforcing projection piece portion, a second reinforcing projection piece portion, and a reinforcing projection piece portion, and a fixed portion of a locking device arranged along the outer peripheral projection surface portion of the inner joint frame is fixed to the first reinforcing projection piece portion with a fixing device, and in the length direction of the inner joint frame, the length dimension of the fixed length reinforcing material is equal to or greater than the length dimension of the fixed portion of the locking device but smaller than the length dimension of the reinforcing material, and a first thermally expandable fire-resistant material is arranged over the entire length of the outer joint frame at an opposing position of the outer joint frame facing the smoke deflector in the projection direction. [Effects of the Invention]
[0007] According to the present invention, it is possible to provide a fitting that can reduce costs and maintain flame-proofing properties in the event of a fire. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. [Figure 2] FIG. [Figure 3]FIG. [Figure 4] FIG. 3 is a cross-sectional view showing a joint portion of the fitting according to the embodiment. [Figure 5] FIG. 3 is a cross-sectional view showing a joint portion of the fitting according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0009] [Configuration of this embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In Figures 1 to 3, the sliding window 1 as a fixture in this embodiment comprises a window frame 2 (frame body) that is installed in an opening in the building structure, and an outer shoji screen 3 and an inner shoji screen 6 that are arranged within the window frame 2 so that they can slide left and right in a sliding manner. In the following description, the left-right direction of the sliding window 1 is the X-axis direction, the up-down direction of the sliding window 1 is the Y-axis direction, and the projection direction of the sliding window 1 is the Z-axis direction. The X, Y, and Z axis directions are perpendicular to each other.
[0010] The window frame 2 comprises an upper frame 21, a lower frame 22, and left and right vertical frames 23, which are arranged vertically. Each of the upper frame 21, lower frame 22, and left and right vertical frames 23 comprises a metal profile 25 formed from an aluminum extrusion and a resin material 26 formed from a resin extrusion and connected to the metal profile 25 on the interior side. The upper frame 21 and lower frame 22 are formed with upper rails 211 and lower rails 221, into which upper frames 31 and lower frames 32 (described later) of the outer shoji screen 3 and inner shoji screen 6 are fitted so as to be slidable in the X-axis direction.
[0011] The outer shoji screen 3 includes an upper frame 31, a lower frame 32, a door edge frame 33, an exterior door edge frame 34, and a panel 35, which are assembled vertically. In this embodiment, the panel 35 is a multi-pane glass panel consisting of a wire-reinforced glass panel on the exterior side and a float glass panel on the interior side. However, this is not limited to this configuration and the panel 35 may also be a single-pane glass panel. The door edge frame 33 is the vertical frame located on the door edge side in the X-axis direction, and the exterior door edge frame 34 is the vertical frame located on the door edge side in the X-axis direction. Together with the interior door edge frame 64 (described later), they form the door edge portion 15. The upper frame 31, the lower frame 32, and the door edge frame 33 each include a metal profile 36 formed from an aluminum extrusion and a plastic profile 37 formed from a plastic extrusion and connected to the metal profile 36 on the interior side. The outer joint frame 34 is made up of a metal profile 38 formed from an extruded aluminum profile, and does not include a resin profile 37 or the like that is connected to the metal profile 38 on the indoor side.
[0012] 3 and 4, the exterior joint frame 34 is integrally formed in a cylindrical shape having an exterior facing surface 341, an interior facing surface 342, an outer peripheral facing surface 343, and an inner peripheral facing surface 344, and forms a hollow portion 345 along the Y-axis direction. The exterior facing surface 341 and the interior facing surface 342 extend inward in the X-axis direction, and this extending portion and the inner peripheral facing surface 344 form a surface material holding groove 346, which holds the vertical edge of the surface material 35 on the joint side. The interior visible surface portion 342 has a main surface portion 41 that is aligned along the X-axis direction and continues to the interior end of the inner peripheral visible surface portion 344, and a step portion 42 that extends from the outer peripheral edge of the main surface portion 41 toward the interior in the Z-axis direction, bends toward the outer peripheral side in the X-axis direction, and continues to the interior end of the outer peripheral visible surface portion 343. The interior visible surface portion 342 also has an exterior smoke deflector portion 43 that has a protruding piece 431 that protrudes from a corner of the step portion 42 toward the interior in the Z-axis direction, and an engaging piece 432 that extends from the protruding piece 431 toward the interior in the X-axis direction (toward the interior of the outer shoji screen 3). The exterior smoke deflector portion 43, together with an interior smoke deflector portion 73 described below, constitutes the smoke deflector 7. An airtight material 44 with a fin that abuts the interior joint frame 64 is attached to the portion of the step portion 42 along the X-axis direction (the portion outer peripheral than the protruding piece 431). At an opposing position P on the main body surface portion 41 that faces the smoke deflector 7 in the Z-axis direction, a pocket portion 45 that opens on the indoor side (toward the indoor joint frame 64) is formed extending in the Y-axis direction over the entire length of the outdoor joint frame 34. The pocket portion 45 has a pair of side pieces 451 that extend to the outdoor side (toward the hollow portion 345), a bottom piece 452 that is continuous with the pair of side pieces 451, and a pair of protrusions 443 that protrude from the indoor ends of the pair of side pieces 451 toward the inside of the opening of the pocket portion 45 in the X-axis direction. The pair of protrusions 443 narrow the opening of the pocket portion 45 in the X-axis direction. The pocket 45 is provided with a sheet-like first thermally expandable fire-resistant material 11 extending in the Y-axis direction. The first thermally expandable fire-resistant material 11 is slidably inserted from one end of the pocket 45 in the Y-axis direction and is disposed over the entire length of the pocket 45 (external joint frame 34) in the Y-axis direction. The exterior surfaces of the pair of protrusions 443 face a portion of the interior surface of the first thermally expandable fire-resistant material 11 in the X-axis direction, thereby preventing the first thermally expandable fire-resistant material 11 from falling out of the pocket 45. When the engaging piece 432 of the exterior smoke deflector piece 43 and the engaging piece 732 of the interior smoke deflector piece 73 are engaged with each other, the interior surface of the first thermally expandable fire-resistant material 11 faces the exterior surface of the engaging piece 732 in the Z-axis direction. When the engaging piece 432 of the exterior smoke deflector piece 43 is engaged with the engaging piece 732 of the interior smoke deflector piece 73, the interior surface faces the interior surface of the engaging piece 432. In addition, a lock receiver 92 is attached to the outer locking frame 34, to which the lock 91 of the crescent lock 9 serving as a locking device can be attached.
[0013] A reinforcing member 51 having a generally U-shaped cross section is disposed in the hollow portion 345 of the outer joint frame 34. The reinforcing member 51 is made of a metal material stronger than the outer joint frame 34, and in this embodiment, is made of steel. The reinforcing member 51 extends in the Y-axis direction along the entire length of the outer joint frame 34 and is integrally formed with an inner peripheral reinforcing projection portion 52 along the Z-axis direction, an outer peripheral reinforcing projection portion 53 along the Z-axis direction, and a reinforcing projection portion 54 along the X-axis direction. The reinforcing projection portion 52 is screwed to the inner peripheral projection surface portion 344, the reinforcing projection portion 54 is continuous with the exterior end of the reinforcing projection portion 52, and the reinforcing projection portion 53 is continuous with the outer peripheral end of the reinforcing projection portion 54. The reinforcing projection piece 52 is disposed at a distance from the main body surface 41 toward the exterior side and in contact with the inner surface of the inner peripheral projection surface 344. The reinforcing projection piece 54 is disposed at a distance in the Z-axis direction from the exterior projection surface 341. The reinforcing projection piece 53 is disposed at a distance in the X-axis direction from the inner peripheral projection surface 344, and its indoor end abuts from the exterior side against the portion of the step 42 to which the airtight material 44 is attached. In this embodiment, the reinforcing projection piece 54 and the reinforcing projection piece 53 are disposed at a distance from the exterior projection surface 341 and the outer peripheral projection surface 343. Therefore, even if the exterior joint frame 34 is heated during an exterior fire, for example, heat conduction from the exterior projection surface 341 and the outer peripheral projection surface 343 to the reinforcing projection piece 54 and the reinforcing projection piece 53 can be eliminated, thereby improving fire resistance. In addition, the reinforcing piece 53 extends in the Z-axis direction until it abuts the portion of the step 42 where the airtight material 44 is attached. By configuring the reinforcing piece 53 to be longer toward the interior of the room, the outer periphery of the outer joint frame 34 is reinforced over a wide area, improving fire resistance.
[0014] The inner shoji screen 6 comprises an upper frame 61, a lower frame 62, a door edge frame 63, an inner joint frame 64, and a glass panel surface 65, which are assembled vertically. The door edge frame 63 is a vertical frame located on the door edge side in the X-axis direction, and the inner joint frame 64 is a vertical frame located on the joint side in the X-axis direction. The upper frame 61, the lower frame 62, and the door edge frame 63 each comprise a metal section 66 formed from an extruded aluminum profile and a resin section 67 formed from an extruded resin profile and connected to the metal section 66 on the interior side. The inner joint frame 64 comprises a metal section 68 formed from an extruded aluminum profile and a resin section 69 connected to the metal section 68 on the interior side and the exterior side near the surface 65 on the inner periphery side, covering the metal section 68 from the interior side.
[0015] As shown in Figures 3 and 4, the interior joint frame 64 is positioned on the interior side of the exterior joint frame 34 when the sliding window 1 is closed, and together with the exterior joint frame 34, it constitutes the aforementioned joint frame 15. The metal section 68 of the interior joint frame 64 is integrally formed into a cylindrical shape with an exterior facing surface 681, an interior facing surface 682, an outer peripheral facing surface 683, and an inner peripheral facing surface 684, forming a hollow section 645 along the Y-axis. Furthermore, the metal section 68 has a partition piece 687 that divides the hollow section 645 into an exterior hollow section 645A and an interior hollow section 645B. The partition piece 687 extends in the X-axis direction and is integrally connected to the outer peripheral facing surface 683 and the inner peripheral facing surface 684. The partition piece 687 is aligned with the panel support portion 684A, which will be described later. The exterior facing surface 681 has a thick portion 681A, which is thicker in the Z-axis direction, and a thin portion 681B, which extends inward in the X-axis direction from the thick portion 681A's interior side. The thin portion 681B extends inward in the X-axis direction beyond the exterior end of the interior facing surface 684. The interior facing surface 684 has a panel support portion 684A along the X-axis at its midpoint in the Z-axis direction. The interior facing surface 684 is divided into an exterior portion 684B and an interior portion 684C by the panel support portion 684A. The exterior facing surface 681, panel support portion 684A, and exterior portion 684B form a panel support groove 686, which supports the vertical edge of the panel 65 on the side of the joint 15. Additionally, the inner joint frame 64 is formed with an inner smoke deflector piece 73 that engages with the outer smoke deflector piece 43 when the sliding window 1 is closed. In this embodiment, the inner smoke deflector piece 73 is composed of an engagement piece 732 that protrudes to the outside of the room from the inner peripheral end of the thick portion 681A in the X-axis direction and extends to the inner peripheral side (the inner peripheral side of the inner shoji screen 6) in the X-axis direction. When the sliding window 1 is closed, the engagement piece 732 is positioned between the engagement piece 432 and the pocket portion 45 in the Z-axis direction. A sheet-like second thermally expandable fire-resistant material 12 is provided on the exterior surface of the thick-walled portion 681A. The second thermally expandable fire-resistant material 12 is disposed adjacent to the inner smoke-reflecting piece 73 in the X-axis direction, and in this embodiment, the second thermally expandable fire-resistant material 12 is disposed at the upper and lower ends of the inner joint frame 64, and is disposed separately in positions on one side (upper side) and the other side (lower side) of the vertical positions of the fixed-length reinforcement material 101 described later in the Z-axis direction. The resin profile 69 of the interior joint frame 64 is integrally formed with a resin interior visible surface portion 691, a resin outer peripheral visible surface portion 692, and a resin inner peripheral visible surface portion 693. The resin interior visible surface portion 691 is positioned to cover the interior visible surface portion 682 from the interior side. The resin outer peripheral visible surface portion 692 is positioned to cover the outer peripheral visible surface portion 683 from the outer periphery, and an engagement piece 692A formed on its exterior end portion engages with the continuous portion of the exterior visible surface portion 681 and the outer peripheral visible surface portion 683. The resin inner peripheral visible surface portion 693 is positioned to cover the interior portion 684C of the inner peripheral visible surface portion 684 from the interior side, and an engagement piece 693A formed on its exterior end portion engages with the continuous portion of the surface material receiving portion 684A and the interior portion 684C. In addition, a rib 691A that abuts against the interior interior surface portion 682 is formed on the resin interior facing surface portion 691 and protrudes toward the outside of the room, a rib 692B that abuts against the outer circumference facing surface portion 683 is formed on the resin outer circumference facing surface portion 692 and protrudes toward the inner circumference, and a gap is formed between the resin outer circumference facing surface portion 692 and the outer circumference facing surface portion 683, and a rib 693B that protrudes toward the outer circumference is formed on the resin inner circumference facing surface portion 693 and a gap is formed between the resin inner circumference facing surface portion 693 and the interior portion 684C. The center of gravity C of this inner joint frame 64 is located near the partition piece portion 687, as shown in Figure 4. In addition, a base 93 to which the locking hook 91 of the crescent lock 9 described above is attached is located along the outer peripheral projection surface portion 683 of the inner joint frame 64. In this embodiment, the base 93 abuts against the resin outer peripheral projection surface portion 692 and is screwed to the first reinforcing projection piece portion 102 of the fixed-length reinforcing material 101 described below by a fixing screw 81 serving as a fixing device. Note that a spacer 83 that maintains the distance between the resin outer peripheral projection surface portion 692 and the outer peripheral projection surface portion 683 is located in the portion through which the fixing screw 81 passes between the resin outer peripheral projection surface portion 692 and the outer peripheral projection surface portion 683.
[0016] A fixed-length reinforcement member 101 having a generally U-shaped cross section is disposed in the outdoor hollow portion 645A of the inner joint frame 64 to reinforce the inner joint frame 64. The fixed-length reinforcement member 101 is formed of a metal material stronger than the inner joint frame 64, and in this embodiment is made of steel. The fixed-length reinforcement member 101 is integrally formed with a first reinforcement prospective piece 102 on the outer periphery along the Z-axis direction, a second reinforcement prospective piece 103 on the inner periphery along the Z-axis direction, and a reinforcement prospective piece 104 along the X-axis direction. The first reinforcing projection piece 102 is screwed to the outer peripheral projection surface 683 using a fixing screw 82 as a fixing device, the reinforcing projection piece 104 is continuous with the outdoor end of the first reinforcing projection piece 102, and the second reinforcing projection piece 103 is continuous with the inner peripheral end of the reinforcing projection piece 104 (the reinforcing projection piece 104 is continuous with the outdoor end of the second reinforcing projection piece 103). The reinforcing projection piece 104, which is continuous with the exterior ends of the first reinforcing projection piece 102 and the second reinforcing projection piece 103, is positioned further outside the room than the center of gravity C of the interior joint frame 64, compared to when the reinforcing projection piece 104 is continuous with the interior ends of the first reinforcing projection piece 102 and the second reinforcing projection piece 103. Therefore, the fixed-length reinforcement member 101 can further increase the cross-sectional strength of the interior joint frame 64, and the portion where the fixed-length reinforcement member 101 is positioned can be configured to be less susceptible to warping even in the event of a fire. In this embodiment, the first reinforcing projection piece 102 has the same projection dimension in the Z-axis direction as the second reinforcing projection piece 103, and is fixed to the base 93 by a fixing screw 81. The first reinforcing projection piece 102 fastens the resin outer peripheral projection surface 692 and the outer peripheral projection surface 683 together with the base 93, and is positioned in contact with the inner surface of the outer peripheral projection surface 683. The second reinforcing projection piece 103 is positioned on the outer peripheral side of the outer peripheral portion 684B of the inner peripheral projection surface 684, with a gap between it and the outer peripheral portion 684B, and forming this gap improves fire resistance in the event of an outdoor fire. The reinforcing projection piece 104 abuts against the indoor surface of the outdoor projection surface 681.The first reinforcing projection piece 102 and the second reinforcing projection piece 103 are slightly shorter in the Z-axis direction than the exterior portions 684B of the outer peripheral projection surface 683 and the inner peripheral projection surface 684, and the reinforcement projection piece 104 is slightly shorter in the X-axis direction than the portion of the exterior projection surface 681 that defines the exterior hollow portion 645A. By making them slightly shorter in this way, the ease of inserting the fixed-length reinforcement member 101 into the exterior hollow portion 645A is improved.
[0017] As shown in FIG. 1 , the length L1 in the Y-axis direction of the fixed-length reinforcement member 101 is greater than the length L2 in the Y-axis direction of the fixed portion 95, which is the region between the upper and lower fixing screws 81 that fix the base 93 to the fixed-length reinforcement member 101, but is smaller than the length L3 in the Y-axis direction of the reinforcement member 51. Within this range, for example, if the length L3 of the reinforcement member 51 (which in this embodiment is equal to the length of the outer joint frame 34 and the inner joint frame 64) is approximately 1100 mm to 1300 mm, the length of the fixed-length reinforcement member 101 may be approximately 300 mm or 500 mm. Furthermore, the length L1 may be approximately 1 / 2 to 1 / 3 of the length L3. Since the fixed-length reinforcement member 101 is a fixed length, it is not necessary to prepare reinforcement members according to the length dimension L1 of each type of inner joint frame 64. It is also possible to prepare several types of reinforcement members with length dimensions L1 of 300 mm, 500 mm, etc., and even in this case, the preparation work can be reduced. In this embodiment, the length dimension L1 of the fixed-length reinforcement member 101 is set to be equal to or greater than the length dimension of the base 93 itself in the Y-axis direction.
[0018] In addition to the first thermally expandable fire-resistant material 11 and the second thermally expandable fire-resistant material 12, the sliding window 1 described above may also be provided with thermally expandable fire-resistant materials 13 at various locations as appropriate.
[0019] In the above-described sliding window 1, in the event of a fire, as shown in Figure 5, the first thermally expandable fire-resistant material 11 thermally expands in the Z-axis direction toward the engaging piece 732 of the inner smoke deflector piece 73, sealing the gap between the interior visible surface 342 of the outer joint frame 34 and the smoke deflector 7. Here, the outer joint frame 34 is reinforced over its entire length with the aforementioned reinforcing material 51, so it is configured so that it is unlikely to warp or deform even when exposed to heat during a fire. On the other hand, the inner joint frame 64 has a fixed-length reinforcing material 101 disposed where the crescent lock 9 is attached, and the position of this fixed-length reinforcing material 101 is approximately the center position in the Y-axis direction of the inner joint frame 64, so it is configured so that it is unlikely to warp or deform at this approximately center position, but the parts of the inner joint frame 64 above and below the fixed-length reinforcing material 101 are configured so that they are more likely to warp or deform than the approximately center position, so it is possible that this warping may occur. Even if warping occurs in the upper or lower portion as mentioned above and the distance between the outer joint frame 34 and the inner joint frame 64 in that portion tends to widen in the Z-axis direction, the first thermally expandable fire-resistant material 11 seals the narrowest position between the outer joint frame 34 and the inner joint frame 64, i.e., the space between the interior visible surface portion 342 and the smoke deflector 7, so the space between the outer joint frame 34 and the inner joint frame 64 can be sealed appropriately. In addition, the second thermally expandable fire-resistant materials 12 provided at the upper and lower ends of the inner joint frame 64 thermally expand in the Z-axis direction toward the interior facing surface 342 of the outer joint frame 34, thereby sealing the gap between the interior facing surface 342 and the thick portion 681A of the exterior facing surface 681 of the inner joint frame 64 at positions adjacent to the thermally expanded first thermally expandable fire-resistant materials 11 in the upper and lower portions. This allows a wider area to be sealed between the exterior joint frame 34 and the inner joint frame 64.
[0020] [Variations] In the above embodiment, the length dimension L1 of the fixed length reinforcing member 101 is larger than the length dimension L2 of the fixed portion 95 of the base 93, but this is not limited thereto, and the length dimension may be the same as the length dimension L2 of the fixed portion 95 of the base 93. Also, in the above embodiment, the length dimension L1 of the fixed length reinforcing member 101 is equal to or larger than the length dimension of the base 93 itself in the Y-axis direction, but the length dimension L1 may be smaller than the length dimension of the base 93 itself in the Y-axis direction. In the above embodiment, a pocket portion 45 is formed on the interior facing surface portion 342 of the outer joint frame 34, and a first thermally expandable fire-resistant material 11 is provided in this pocket portion 45, but this is not limited to this. For example, the first thermally expandable fire-resistant material may be attached to an opposing position P on the interior facing surface portion 342 where the pocket portion 45 is not formed. In the above embodiment, the second thermally expandable fire-resistant material 12 is provided on the exterior-facing surface 681 of the inner joint frame 64, but this is not limiting, and the second thermally expandable fire-resistant material 12 may not be provided, or may be provided only on either the upper or lower end of the inner joint frame 64. Furthermore, the second thermally expandable fire-resistant material 12 may be provided over the entire area on both sides of the fixed-length reinforcement member 101 in the Y-axis direction, but in order to effectively seal the gap between the outer joint frame 34 and the inner joint frame 64 while reducing the material of the second thermally expandable fire-resistant material 12, it is preferable to provide the second thermally expandable fire-resistant material 12 near the upper end and the lower end of the inner joint frame 64. In the above embodiment, the reinforcing projection piece 104 of the fixed length reinforcement material 101 is provided at a position continuous with the outdoor end of each of the first reinforcing projection piece 102 and the second reinforcing projection piece 103, but this is not limited to this and it may be provided at a position closer to the indoor side than this position, or it may be provided continuous with the indoor end of each of the first reinforcing projection piece 102 and the second reinforcing projection piece 103. In the above embodiment, the hollow portion 645 of the inner joint frame 64 is divided into an outdoor hollow portion 645A and an indoor hollow portion 645B, but it may be formed as a single hollow portion 645 without being divided in this way. In this case, the partition piece portion 687 may be omitted. In the above embodiment, the first reinforcing projection piece 102 of the fixed length reinforcement member 101 is fixed to the outer peripheral projection surface 683 of the inner joint frame 64 by the fixing screw 82, but this is not limiting, and the configuration of the fixing screw 82 may be omitted. In this case, the first reinforcing projection piece 102 may be fixed to the outer peripheral projection surface 683 by co-fastening the outer peripheral projection surface 683 with the fixed portion 95 of the base 93 connected by the fixing screw 81. In this case, it is preferable that the diameter of the hole machined and formed in the outer peripheral projection surface 683 to pass the fixing screw 81 through is the same as the diameter of the fixing screw 81. In the above embodiment, a sliding window 1 is described as a fixture, but it may also be, for example, a casement window, in which case one of the outer and inner shoji screens may be made slidable and the other may be fixed so that it cannot be slidable, resulting in a single-sliding configuration.
[0021] [Summary of the invention] The fittings of the present invention comprise a frame body having an upper frame, a lower frame, and left and right vertical frames, and an outer shoji screen and an inner shoji screen arranged within the frame body, at least one of the outer shoji screen and the inner shoji screen being slidable within the frame body, the outer shoji screen having a cylindrical outer joint frame with a hollow portion, the inner shoji screen having a cylindrical inner joint frame with a hollow portion, a smoke deflector being formed between the outer joint frame and the inner joint frame, a reinforcing material for reinforcing the outer joint frame being arranged in the hollow portion of the outer joint frame over the entire length of the outer joint frame, and a fixed length reinforcing material for reinforcing the inner joint frame being arranged in the hollow portion of the inner joint frame. A fixed length reinforcing material is arranged, and the fixed length reinforcing material is formed integrally with a first reinforcing projection piece portion, a second reinforcing projection piece portion, and a reinforcing projection piece portion, and a fixed portion of a locking device arranged along the outer peripheral projection surface portion of the inner joint frame is fixed to the first reinforcing projection piece portion with a fixing device, and in the length direction of the inner joint frame, the length dimension of the fixed length reinforcing material is equal to or greater than the length dimension of the fixed portion of the locking device but smaller than the length dimension of the reinforcing material, and a first thermally expandable fire-resistant material is arranged over the entire length of the outer joint frame at an opposing position of the outer joint frame facing the smoke deflector in the projection direction. According to the building fixture of the present invention, a fixed-length reinforcing material having the aforementioned length dimension is placed in the hollow portion of the inner joint frame, thereby eliminating the need to prepare reinforcing material according to the overall length of various inner joint frames each time, and also allowing the use of fixed-length reinforcing material having a smaller length dimension than the above-mentioned reinforcing material, thereby achieving cost reduction. Furthermore, in the event of a fire, the outer joint frame, in which the reinforcing material is arranged along the entire length of the hollow section, and the portion of the inner joint frame where the fixed portion of the locking device is arranged and the fixed-length reinforcing material is arranged, are unlikely to warp due to the heat during a fire, so the configuration makes it difficult for the gap between the aforementioned portion of the inner joint frame and the outer joint frame to widen.As a result, the first thermally expansive fire-resistant material, which expands thermally during a fire, can easily seal the gap between the aforementioned portion of the inner joint frame and the outer joint frame. However, the first thermally expansive fire-resistant material, which is installed along the entire length of the outer stile, is positioned opposite the smoke deflector, i.e., where the gap between the outer stile and the inner stile is narrowest. Therefore, even if the gap between the outer stile and the first thermally expansive fire-resistant material widens, the first thermally expansive fire-resistant material can sufficiently seal the gap. Therefore, even when the first thermally expansive fire-resistant material is installed, the flame-proofing between the outer stile and the inner stile can be maintained. In addition, since the fixed-length reinforcement material is integrally formed from the first reinforcement prospective piece portion, the second reinforcement prospective piece portion, and the reinforcement prospective piece portion, it is possible to form a fixed-length reinforcement material that has sufficient strength even at a fixed length.
[0022] In the building fixture of the present invention, a pocket portion that opens on the inner stile side is formed at the opposing position on the outer stile over the entire length of the outer stile, and a protrusion is formed in the pocket portion to narrow the opening in the direction of sliding movement of one of the shoji screens, and the first thermally expandable fire-resistant material may be arranged within the pocket portion. With this configuration, the first thermally expandable fire-resistant material can be slid in from the end of the pocket before assembling one of the shoji screens. The protruding piece also prevents the first thermally expandable fire-resistant material from falling out of the pocket. Therefore, compared to attaching the first thermally expandable fire-resistant material to an outer joint frame that does not have a pocket, the first thermally expandable fire-resistant material can be easily attached to the outer joint frame and positioned in the aforementioned opposing position. Furthermore, the first thermally expandable fire-resistant material is less likely to come off, improving workability.
[0023] In the building fixture of the present invention, a second thermally expandable fire-resistant material is provided on the exterior surface of the inner joint frame at a position adjacent to the smoke deflector in the sliding movement direction of one of the shoji screens, and the second thermally expandable fire-resistant material may be positioned on one side and the other side of the position of the fixed-length reinforcement material in the longitudinal direction of the inner joint frame. With this configuration, the second thermally expandable fire-resistant material is placed on one side and the other side of the fixed-length reinforcement material in the longitudinal direction of the inner joint frame, so that gaps between the outer joint frame and the inner joint frame that may occur on the one side and the other side in relation to the first expandable fire-resistant material can be sealed over a wider area, thereby improving flame resistance.
[0024] In the building fixture of the present invention, the inner joint frame has a partition piece portion that divides the hollow portion into an outdoor hollow portion and an indoor hollow portion, the fixed-length reinforcement material is arranged in the outdoor hollow portion, and the reinforcing prospective piece portion may be continuous with the outdoor end portions of the first reinforcing prospective piece portion and the second reinforcing prospective piece portion. According to this configuration, by placing the fixed-length reinforcement material in the outdoor hollow section, a locking device whose fixed part is fixed to the first reinforcing piece can be placed in a predictable position close to the outer screen, compared to when the fixed-length reinforcement material is placed in the indoor hollow section, and a locking device such as a crescent lock can be easily hung on a lock receptacle that can be installed in the outer screen. Furthermore, by configuring the reinforcing piece of the fixed-length reinforcement material placed in the outdoor hollow portion to be continuous with the outdoor ends of the first reinforcing piece and the second reinforcing piece, it is possible to configure the reinforcing piece to be placed at a position further outside the room than the center of gravity of the inner joint frame, compared to when the reinforcing piece is configured to be continuous with the indoor ends of the first reinforcing piece and the second reinforcing piece, and this fixed-length reinforcement material can further improve the cross-sectional strength of the inner joint frame.
[0025] In the building fixture of the present invention, the first reinforcing projection piece portion may be fixed to the outer peripheral projection surface portion of the inner joint frame by a fixing device. With this configuration, processing such as drilling holes in the inner joint frame to fix the first reinforcing projection piece to the inner joint frame, and processing such as drilling holes in the inner joint frame to fix the fixed part of the locking device to the reinforcing projection piece, can be concentrated on the outer peripheral projection surface (one surface) of the inner joint frame, improving workability.
[0026] In the building fixture of the present invention, the first reinforcing projection piece portion may be fixed to the outer peripheral projection surface portion of the inner joint frame using a fixing device that fixes the fixed portion of the locking device to the first reinforcing projection piece portion. With this configuration, the same fixing device is used to fix the fixed portion of the locking device to the first reinforcing projected piece portion and to fix the first reinforcing projected piece portion to the outer peripheral projected surface portion of the inner joint frame, thereby reducing the number of parts in the fixing device. [Explanation of symbols]
[0027] 1...sliding window (door and window fixture), 101...fixed length reinforcement material, 102...first reinforcement prospective piece, 103...second reinforcement prospective piece, 104, 54...reinforcement prospective piece, 11...first thermal expansion fireproof material, 12...second thermal expansion fireproof material, 13...thermal expansion fireproof material, 15...joint part, 2...window frame (frame body), 21...upper frame, 211...upper rail, 22...lower frame, 221...lower rail, 23...vertical frame, 25, 36, 38, 66, 68...metal shaped material, 26...wood Resin material, 3...outer shoji screen, 31,61...upper frame, 32,62...lower frame, 33,63...door edge frame, 34...outer joint frame, 341,681...outdoor facing surface, 342,682...indoor facing surface, 343,683...outer facing surface, 344,684...inner facing surface, 345,645...hollow portion, 346...surface material holding groove, 35,65...surface material, 37,67,69...plastic profile, 41...main body surface, 42...step portion, 43...external smoke return piece part, 431...protruding piece part, 432, 732...engaging piece part, 44...airtight material, 443...projecting piece, 45...pocket part, 451...side piece, 452...bottom piece, 51...reinforcing material, 52, 53...reinforcing piece part, 6...inner shoji, 64...inner joint frame, 645A...outdoor hollow part, 645B...indoor hollow part, 681A...thick part, 681B...thin part, 684A...surface material receiving part, 684B...outdoor part, 684C...indoor part, 687...partition piece part 691...interior resin surface portion, 691A, 692B, 693B...ribs, 692...outer resin surface portion, 692A, 693A...engagement piece, 693...inner resin surface portion, 7...smoke deflector, 73...inner smoke deflector piece, 81, 82...fixing screw, 83...spacer, 9...crescent lock (locking device), 91...lock hook, 92...lock receiver, 93...base, 95...fixed portion, C...center of gravity position, L1 to L3...length dimension, P...opposite position.
Claims
1. A frame body having an upper frame, a lower frame, and left and right vertical frames, and an outer shoji screen and an inner shoji screen arranged within the frame body, At least one of the outer and inner shoji screens is slidable within the frame body, The outer shoji screen has a cylindrical outer joint frame having a hollow portion, The inner shoji screen has a cylindrical inner joint frame having a hollow portion, A smoke deflector is configured between the outer and inner joint frames, In the hollow portion of the outer joint frame, a reinforcing material for reinforcing the outer joint frame is arranged over the entire length of the outer joint frame, A fixed length reinforcing material that reinforces the inner joint frame is placed in the hollow portion of the inner joint frame, The fixed-length reinforcement material is integrally formed with a first reinforcement prospective piece portion, a second reinforcement prospective piece portion, and a reinforcement prospective piece portion, The first reinforcing piece has a fixed portion of a locking device arranged along the outer peripheral surface of the inner joint frame fixed thereto by a fixing device, In the length direction of the inner joint frame, the length dimension of the fixed length reinforcement member is equal to or greater than the length dimension of the fixed portion of the locking device and is smaller than the length dimension of the reinforcement member, A first thermal expansion fireproof material is provided over the entire length of the outer joint frame at a position facing the smoke deflector in the forward direction of the outer joint frame, A second thermal expansion fireproof material is provided on the exterior surface of the inner joint frame at a position adjacent to the smoke deflector in the sliding movement direction of the one of the shoji screens, The second thermal expansion fire-resistant material is arranged separately at positions on one side and the other side of the vertical positions of the fixed-length reinforcement material in the length direction of the inner joint frame. A fixture characterized by:
2. In the fitting according to claim 1, At the opposing position of the outer joint frame, a pocket portion opening on the inner joint frame side is formed over the entire length of the outer joint frame, A protrusion is formed in the pocket portion to narrow the opening in the sliding direction of the one of the sliding doors, and the first thermally expandable fireproof material is disposed in the pocket portion. A fixture characterized by:
3. In the fitting according to claim 1 or claim 2, The inner joint frame has a partition piece portion that divides the hollow portion into an outdoor hollow portion and an indoor hollow portion, The fixed length reinforcement material is disposed in the outdoor hollow portion, The reinforcing projection piece is continuous with the exterior end of each of the first reinforcing projection piece and the second reinforcing projection piece. A fixture characterized by:
4. In the fitting according to any one of claims 1 to 3, The first reinforcing piece is fixed to the outer peripheral surface of the inner joint frame by a fastener. A fixture characterized by:
5. In the fitting according to claim 4, The first reinforcing piece is fixed to the outer peripheral surface of the inner joint frame by a fixing device that fixes the fixed portion of the locking device to the first reinforcing piece. A fixture characterized by:
Citation Information
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