Opening-section building material
Patent Information
- Application Number
- JP2023130740
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-08-10
- Publication Date
- 2025-02-21
Smart Images
Figure 2025025697000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a building material for an opening to be installed in an opening of a building. [Background technology]
[0002] In recent years, there has been a demand for improved fire resistance in building materials for use in openings in buildings. 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 having improved fire resistance. [Means for solving the problem]
[0004] In order to achieve the above object, the opening building material according to the invention described in claim 1 comprises a shaped material, a glass opening component, and glass, the shaped material has a groove for holding the glass opening component, the glass opening component is made of metal, has a glass opening, and is held in the groove of the shaped material, and the glass is supported by a glass support material at the glass opening of the glass opening component. Effect of the Invention
[0005] The building material for openings according to the invention described in claim 1 comprises a shaped material, a glass opening component, and glass, the shaped material has a groove for holding the glass opening component, the glass opening component is made of metal, has a glass opening, and is held in the groove of the shaped material, and the glass is supported at the glass opening of the glass opening component by a glass support material, so that even if the shaped material melts due to the heat of the fire in the event of a fire, the metal glass opening component remains and prevents the glass from coming off, thereby improving fire resistance. [Brief description of the drawings]
[0006] [Figure 1] This is an enlarged cross-sectional view showing the butt joints of the left and right inner sashes of an inner window. [Diagram 2]1 is a front view showing an embodiment of a building material for openings according to the present invention, from the indoor side. [Diagram 3] FIG. 2 is a cross-sectional view of the building material for an opening. [Figure 4] FIG. 2 is a vertical cross-sectional view of the building material for an opening. [Diagram 5] 1A is a plan view and a front view of an outer reinforcement material provided within the hollow portion of the butt frame of an inner screen, and FIG. 1B is a plan view and a front view of an inner reinforcement material provided within the same hollow portion. [Figure 6] This is an enlarged cross-sectional view showing the joint between the left and right inner sashes of an inner window, illustrating the state when a fire breaks out on the outside of the room. [Figure 7] 1(a) is a plan view and a front view of the reinforcing material installed within the hollow portion of the butt frame of the inner sash, and 1(b) is a plan view and a side view of the same reinforcing material, showing the state when a fire breaks out on the outside of the room. [Figure 8] (a) is a plan view and a front view of a comparative example reinforcement material in which the outer reinforcement material and the inner reinforcement material are screwed together, and (b) is a plan view and a side view of the same reinforcement material, showing the state when a fire breaks out on the outside of the room. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 to 4 show one embodiment of the building material for openings of the present invention, which is applied to an inner window 16 installed on the indoor side of an outer window 17 installed in an opening in the framework of a building, as shown in Figures 2, 3, and 4.
[0008] The exterior window 17 is a four-panel sash frame composed of an upper frame 18, a lower frame 19, and left and right vertical frames 20, 20 as shown in Figures 3 and 4. It is equipped with a frame 21 fixed to the opening in the main structure, a pair of outer shoji screens 22, 22 arranged on both the left and right sides of the outside of the room within the frame 21 so as to be able to slide open and closed, and a pair of inner shoji screens 23, 23 arranged to be abutted against the center of the interior side of the frame 21 so as to be able to slide open and closed.
[0009] The inner window 16 is also a sash with four shoji panels, and as shown in Figures 2, 3 and 4, it comprises a frame 30 formed by attaching an upper frame 27, a lower frame 28 and left and right vertical frames 29, 29 to the inner side of an opening 26 surrounded by a frame 24 and a floorboard 25 on the indoor side of the frame 21 of the outer window 17, a pair of outer shoji panels 31, 31 mounted on both the left and right sides of the outdoor side of the frame 30 so as to be able to slide open and closed, and a pair of inner shoji panels 32, 32 abutted against the center of the indoor side of the frame 30 so as to be able to slide open and closed. The inner window 16 has high thermal insulation performance, with the frame 30 and the sashes 31, 32 basically made of resin. In addition, fire resistance is provided by appropriately arranging metal reinforcing materials inside the hollow parts of the sashes 31, 32. This inner window 16 is particularly characterized by the butt joints of the left and right inner sashes 32, 32, which will be described in detail below.
[0010] As shown in Figures 3 and 4, the inner screen 32 is constructed by forming a frame of an upper frame 33, a lower frame 34, butt frames (composing the opening) 1a, 1b, and a joint frame 35, and fitting the glass 12 into the frame. The glass 12 is made of fireproof glass such as heat-resistant tempered glass. As shown in FIG. 1, the butt frames 1a and 1b each have a butt frame body (shape) 5 made of a resin shape material, a metallic reinforcing member 6, and a metallic glass frontage forming member 11. The butt frame body 5 has a hollow portion 36 of approximately rectangular cross section and a groove 13 opening toward the inner periphery. A reinforcing material 6 is provided within the hollow portion 36, and a glass frontage component 11 is held within the groove 13.
[0011] The reinforcement member 6 is made of a metal such as steel, and as shown in Fig. 1, it is composed of an outer reinforcement member 6a having an approximately U-shaped cross section with exterior and indoor side visible walls 7a, 7b and a visible wall 8, and an inner reinforcement member 6b having an approximately U-shaped cross section with exterior and indoor side visible walls 9a, 9b and a visible wall 10, and the two reinforcement members 6a, 6b are joined together so that the exterior and indoor side visible walls 9a, 9b of the inner reinforcement member 6b are located inside the exterior and indoor side visible walls 7a, 7b of the exterior reinforcement member 6a, respectively, to form a hollow portion 37. A small gap 62 is formed between the exterior and indoor side visible walls 7a, 7b of the exterior reinforcement member 6a and the exterior and indoor side visible walls 9a, 9b of the inner reinforcement member 6b.
[0012] The exterior and indoor facing walls 7a, 7b of the exterior reinforcement 6a and the exterior and indoor facing walls 9a, 9b of the interior reinforcement 6b are engaged in a state in which they can move relative to each other vertically and horizontally. Specifically, as shown in Figure 5(a), the exterior and indoor facing walls 7a, 7b of the exterior reinforcement 6a have female threaded holes 38 formed at intervals in the vertical direction, and screws 39 are screwed into these female threaded holes 38 from the outside for installation (see Figure 1). As shown in Fig. 5(b), the visible walls 9a, 9b on the outdoor side and indoor side of the inner reinforcement 6b are formed with long holes 40 at the same height as the female screw holes 38, with a size that allows a margin in the vertical and horizontal directions relative to the diameter of the screw 39, and the screw 39 is inserted into the long hole 40 (see Fig. 1). When the screw 39 moves within the long hole 40, the visible walls 7a, 7b on the outdoor side and indoor side of the outer reinforcement 6a and the visible walls 9a, 9b on the outdoor side and indoor side of the inner reinforcement 6b can move relative to each other. In the example shown in Fig. 5, the long hole 40 is long in the horizontal direction.
[0013] As shown in Fig. 1, the outside reinforcement material 6a has a projection wall 8 which is fixed to the inner peripheral side wall 41 of the butt frame body 5 together with the glass frontage component 11 by a screw 42 from the inside (the projection wall 8 has a female threaded hole into which the screw 42 is screwed). Between the projection wall 8 of the outside reinforcement material 6a and the inner peripheral side wall 41 of the butt frame body 5, a heat foaming material 43 is provided. The inner reinforcement 6b provided in the hollow portion 36 of the butt frame body 5 of the butt frame 1a on the left side as viewed from the inside of the room (hereinafter, left and right refer to the left and right as viewed from the inside of the room) has a projection wall 10 fixed to the outer peripheral side wall 44 of the butt frame body 5 from the outer periphery with screws 45 together with a gap hiding member 2 described later (the projection wall 10 has a female threaded hole into which the screw 45 is screwed). A heated foaming material 46 is provided between the projection wall 10 of the inner reinforcement 6b and the outer peripheral side wall 44 of the butt frame body 5. On the other hand, the inner reinforcement 6b provided in the hollow portion 36 of the butt frame body 5 of the right-side butt frame 1b does not have its projection wall 10 fixed to the outer peripheral side wall 44 of the butt frame body 5 with screws. A heated foaming material 46 is provided between the projection wall 10 of the inner reinforcement 6b and the outer peripheral side wall 44 of the butt frame body 5.
[0014] As shown in Fig. 1, the glass opening component 11 is made of an aluminum alloy extrusion formed into a generally U-shaped cross section, and has a glass opening 14 that encloses the end of the glass 12. A protrusion 48 is formed on the exterior and interior walls 47, 47 of the glass opening component 11, protruding inward at a position that is located outside the interior edge toward the outer periphery, and the glazing channel (glass support material) 15 is engaged with the protrusion 48 to be held within the glass opening 14, and the glass 12 is supported by the glazing channel 15. The exterior and interior walls 47, 47 of the glass opening component 11 protrude inside the glazing channel 15, so that the glazing channel 15 is hidden within the glass opening 14 so that it cannot be seen from the interior and interior sides. A heat-foaming material 49 is provided inside the glass opening 14 of the glass opening component 11, on the rear side of the glazing channel 15. The heat-foaming material 49 is attached to the inner surfaces of the walls 47, 47 on the outdoor side and indoor side of the glass opening component 11. The inner peripheral ends of the outdoor and indoor walls 47, 47 of the glass opening component 11 have protrusions 50 that protrude outward, and the protrusions 50 are located at the same position in the inner and outer circumferential directions as the inner peripheral ends of the outdoor and indoor walls of the butt frame body 5, and the protrusions 50 hide the gap between the groove 13 of the butt frame body 5 and the glass opening component 11. The glass opening component 11 is inserted into the groove 13 of the butt frame body 5 from the inner side and fixed to the inner side wall 41 of the butt frame body 5 with screws 42 from the inner side (in essence, the glass opening component 11 is fastened to the visible wall 8 of the outer reinforcement member 6a with screws 42).
[0015] As shown in FIG. 1, a gap concealing member 2 is provided between the left and right butt frames 1a, 1b that are butted against each other, and the gap concealing member 2 conceals a gap 51 between the left and right butt frames 1a, 1b. The gap hiding member 2 is made of an aluminum alloy extrusion and has an approximately H-shaped cross section with exterior and interior facing walls 3a, 3b and a facing wall 4. The exterior facing surfaces 61a of the left and right butt frames 1a, 1b face the exterior facing wall 3a, and the interior facing surfaces 61b of the left and right butt frames 1a, 1b face the interior facing wall 3b. The exterior and interior facing walls 3a, 3b are covered on the outside with a resin cover 52 attached. The gap concealing member 2 has a reinforcing member 53 that abuts across the interior side of the exterior visible wall 3a to the right of the visible wall 4 and the right side of the visible wall 4, and a reinforcing member 54 that abuts across the interior side of the exterior visible wall 3a to the left of the visible wall 4 and the left side of the visible wall 4. The reinforcing members 53, 54 are made of a metal that is more heat resistant than aluminum, such as stainless steel. The gap concealing member 2 is fixed to the door end surface 60 of the left butt frame (one of the butt frames) 1a with screws 45 from the outer periphery, with the visible wall 4 sandwiched between the reinforcing members 53, 54. The hole through which the screw 45 of the right reinforcing member 53 is inserted is blocked with a heated foaming material 55. A rubber-like tension material 56 is provided on the right side of the right-side reinforcement material 53, and the door end surface 57 of the right-side butt frame (the other butt frame) 1b abuts against the front wall 4 of the gap concealment member 2 via the tension material 56. In addition, the gap concealment member 2 has heated foaming materials 58a, 58b, 58c provided on the indoor side of the exterior facing wall 3a to the left of the exterior facing wall 4, and on the outdoor side of both the left and right sides of the interior facing wall 3b.
[0016] Fig. 6 shows the state when a fire breaks out on the outdoor side. As shown in the figure, the outdoor side cover 52 made of resin of the gap concealment member 2 and the outdoor side wall 59 of the left and right butt frame bodies 5, 5 made of resin melt away due to the heat of the fire, but the outdoor side and indoor side facing walls 3a, 3b of the gap concealment member 2 hide the gap 51 between the left and right butt frames 1a, 1b, and the outdoor side facing wall 3a of the gap concealment member 2 and the outdoor side facing surface 6 of the left butt frame 1a remain. The gap between the interior side visible wall 3b of the gap concealing member 2 and the interior side visible surfaces 61b of the left and right butt frames 1a, 1b is sealed with heated foam material 58a, the gap between the door end surface 57 of the right butt frame 1b and the visible wall 4 of the gap concealing member 2 is sealed with heated foam material 55, thereby preventing flames from penetrating between the left and right butt frames 1a, 1b.
[0017] Furthermore, even if the outdoor side wall 59 of the resin butt frame body 5 is missing, a metal reinforcing material 6 is provided within the hollow portion 36 of the butt frame body 5, so that the penetration of flames can be prevented by the metal reinforcing material 6. The heating surface side of the reinforcement 6 (the outdoor side in the illustrated example) thermally expands in the longitudinal direction, causing the reinforcement 6 to warp and swell toward the heating surface side. If the outdoor and indoor side visible walls 7a, 7b of the outer reinforcement 6a and the outdoor and indoor side visible walls 9a, 9b of the inner reinforcement 6b were fixed with screws 39 so as not to move, as shown in Comparative Example Fig. 8(a), the heating surface side visible wall 7a of the outer reinforcement 6a and the heating surface side visible wall 9a of the inner reinforcement 6b are heated to approximately the same high temperature, and as the heating surface side visible wall 7a of the outer reinforcement 6a and the heating surface side visible wall 9a of the inner reinforcement 6b thermally expand, the outer reinforcement 6a and the inner reinforcement 6b become integrated and warp toward the heating surface side in the same way, as shown in Comparative Example Fig. 8(b), and the warp X becomes large. In contrast, as shown in FIG. 7(a), the reinforcing members 6 inside the butt frames 1a, 1b of the inner window 16 are secured to the exterior and interior side facing walls 7a, 7b of the exterior reinforcing member 6a and the exterior and interior side facing walls 9a, 9b of the interior reinforcing member 6b by screws 39 and long holes 40 in a state in which they can move relatively up, down, left and right. 7(b), since the outer reinforcement 6a is not fixed to the outer wall 7a, the outer reinforcement 6a tends to warp toward the heated surface side as the exposed wall 7a on the heated surface side is heated to a high temperature and expands, but the exposed wall 9a on the heated surface side of the inner reinforcement 6b is protected from the flames by the exposed wall 7a of the outer reinforcement 6a and does not rise in temperature very much, so the inner reinforcement 6b hardly warps toward the heated surface side and acts to suppress the warping of the outer reinforcement 6a. As a result, the warp X of the reinforcement 6 is reduced. In this way, by reducing the warp X of the reinforcing material 6, gaps are less likely to occur between the left and right butt frames 1a, 1b, or between the butt frames 1a, 1b and the glass 12, etc., and fire resistance is improved.
[0018] As shown in Figure 6, even if the exterior wall 59 of the frame body 5 is lost, the glass opening component 11 of this inner window 16 remains, making it possible to prevent flames from penetrating between the frame bodies 1a, 1b and the glass 12. Furthermore, the heated foaming material 49 provided within the glass opening 14 expands to fill the space within the glass opening 14, making it possible to prevent flames from penetrating through the glass opening 14. The glass opening component 11 is fixed to the reinforcing material 6 provided within the hollow portion 36 of the frame body 5 with screws 42, so it will not fall off in the event of a fire and can stably hold the glass 12.
[0019] As described above, this opening building material (inner window) 16 comprises one and other butt frames 1a, 1b that are butted together, and a gap concealing member 2, and the gap concealing member 2 has exterior and interior facing walls 3a, 3b and a concealed wall 4, and the concealed wall 4 is fixed to the door end surface 60 of one of the butt frames (the left butt frame) 1a, and the exterior and interior facing surfaces 61a, 61b of the other butt frame (the right butt frame) 1b face the visible walls 3a, 3b of the gap concealing member 2, and the door end surface 57 of the other butt frame 1b abuts against the concealed wall 4 of the gap concealing member 2 (see Figures 1 and 6), thereby preventing flames from penetrating between the one and other butt frames 1a, 1b in the event of a fire, thereby improving fire resistance. In this opening building material 16, the visible surfaces 61a, 61b on the outdoor side and indoor side of one of the butt frames 1a face the visible walls 3a, 3b of the gap concealing member 2, so that the visible surfaces 61a, 61b of one of the butt frames 1a can also be protected by the gap concealing member 2, further improving the fire resistance. In this opening building material 16, the one and other butt frames 1a, 1b are made of resin, and the gap concealing member 2 has the visible walls 3a, 3b and the visible wall 4 made of aluminum, and the visible walls 3a, 3b are covered with a resin cover 52, thereby achieving both thermal insulation performance and fire prevention performance. The gap concealing member 2 has reinforcing members 53, 54 that abut across the exterior and / or interior facing walls 3a, 3b and the visible wall 4, thereby preventing the gap concealing member 2 from melting or deforming, and improving fire resistance. The gap concealing member 2 has reinforcing materials 53, 54 that abut across the visible wall 3a and the visible wall 4 on either the indoor or outdoor side, and has heated foaming materials 58b, 58c between the visible wall 3b on the other side and the butt frames 1a, 1b, thereby preventing melting and deformation of the gap concealing member 2 and preventing flames from penetrating through the gap between the visible wall 3b on the other side of the gap concealing member 2 and the butt frames 1a, 1b, thereby improving fire resistance.
[0020] This opening building material (inner window) 16 comprises opening building material components (butt frames) 1a, 1b consisting of a shaped material (butt frame main body) 5 and a reinforcement material 6 provided within a hollow portion 36 of the shaped material 5, and the reinforcement material 6 is comprised of an outer reinforcement material 6a and an inner reinforcement material 6b which have a roughly U-shaped cross section and have exterior and interior side visible walls 7a, 7b, 9a, 9b and visible walls 8, 10, and these are joined to form a hollow portion 37, and the visible wall 8 of the outer reinforcement material 6a is fixed to the wall (inner peripheral side wall) 41 of the shaped material 5, and the visible walls 7a, 7b of the outer reinforcement material 6a and the visible walls 9a, 9b of the inner reinforcement material 6b are arranged in a state where they can move relative to one another (see Figures 1 and 7), which prevents warping of the opening building material components 1a, 1b in the event of a fire, thereby improving fire resistance. In this opening building material 16, the visible walls 9a, 9b on the outdoor side and indoor side of the inner reinforcement 6b are located inside the outdoor side and indoor side visible walls 7a, 7b of the outer reinforcement 6a, respectively, so that the inner reinforcement 6b suppresses warping of the outer reinforcement 6a, and warping of the opening building material components 1a, 1b is effectively suppressed. When the visible walls 7a, 7b of the outer reinforcement 6a and the visible walls 9a, 9b of the inner reinforcement 6b are engaged in a state in which they can move relative to each other, the outer reinforcement 6a and the inner reinforcement 6b can be installed in an integrated state within the hollow portion 36 of the profile 5, improving assembly ease.
[0021] This opening building material (inner window) 16 comprises a shaped member (butt frame main body) 5, a glass opening component 11, and glass 12; the shaped member 5 has a groove 13 which holds the glass opening component 11; the glass opening component 11 is made of metal, has a glass opening 14, and is held in the groove 13 of the shaped member 5; and the glass 12 is supported by a glass support member (glazing channel) 15 at the glass opening 14 of the glass opening component 11 (see Figures 1 and 6). Therefore, even if the shaped member 5 melts due to the heat of the fire in the event of a fire, the metallic glass opening component 11 remains, preventing the glass 12 from coming off, thereby improving fire resistance. This opening building material 16 has exterior and interior walls 47, 47 of the glass opening component 11 that protrude inward beyond the glass support material 15, thereby protecting the glass support material 15 from flames in the event of a fire, and has a good design because the glass support material 15 is not exposed under normal circumstances. Since the opening construction material 16 has the heating foaming material 49 on the inner side of the glass support material 15 of the glass opening 14, it is possible to prevent flames from penetrating through the glass opening 14 in the event of a fire. This opening building material 16 has a shape 5 made of resin and a glass opening component 11 made of aluminum, so that it can achieve both heat insulation performance and fire prevention performance. The glass support material 15 is held between the opposing faces of the exterior wall 47 and the interior wall 47 of the glass frontage component 11, so that the glass 12 can be stably held. Since the glass frontage component 15 is fastened to the reinforcing material 6 provided in the hollow portion 36 of the shaped member 5, the glass frontage component 15 will not fall off even in the event of a fire, and the glass 12 can be stably held.
[0022] The present invention is not limited to the above-described embodiment. The cross-sectional shape and material of the profile and glass frontage component can be changed as appropriate. The glass support material is not limited to the glazing channel, but may be a rubber bead or a wet sealant. The present invention is not limited to an interior window, but may also be applied to a window that faces the outdoors. [Explanation of symbols]
[0023] 1a, 1b Butt frame (opening building material component) 2. Gap-hiding materials 3a,3b Maki wall 4. Facade Wall 5. Butt joint frame body (shape material) 6 Reinforcement 6a External reinforcement 6b Inner reinforcement 7a,7b Mizuke wall 8. Facade Wall 9a,9b Mizuke wall 10. Facade Wall 11 Glass frontage components 12. Glass 13 Groove 14 Glass Frontage 15 Glazing channel (glass support material) 16 Inner windows (opening building materials)
Claims
[Claim 1] This opening building material comprises a shaped material, a glass frontage component, and glass, the shaped material has a groove for holding the glass frontage component, the glass frontage component is made of metal, has a glass frontage, and is held in the groove of the shaped material, and the glass is supported by a glass support material at the glass frontage of the glass frontage component.