Building materials for fixtures

Abstract

To improve fire resistance regardless of the surface condition of a building material body.SOLUTION: A surface 2a of a building material body 2a which is formed by metal is provided with a thermally expandable member 3, which has been applied in a fluid state and then cured.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention provides Building materials for fixtures It is related to. [Background technology]

[0002] Modern building materials require high fire resistance. For this reason, building materials for building materials, such as frames and stiles, or reinforcing materials installed inside these frames and stiles, are provided in which a fixed-shaped thermally expandable member is attached to the surface of the building material itself. When this type of building material is exposed to high temperatures, such as during a fire, the thermally expandable member expands due to heating, and the gap between the frame and stile or the hollow space inside the frame or stile is blocked. As a result, the occurrence of flame penetration holes inside and outside the room is prevented, and fire resistance can be improved (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-56664 Summary of the Invention [Problem to be solved by the invention]

[0004] The surface of a building material may have protrusions such as screws or projections. For example, the groove where the glass is installed has internal corners on both sides. It is difficult to attach a thermally expandable member without gaps to areas on the surface of the building material where protrusions or internal corners are formed. For this reason, with this type of building material, there is a risk that the thermally expandable member may peel off and fall off over time. Even if there are no large protrusions or internal corners, the same problem may occur with building materials that have an uneven surface with minute irregularities, such as areas coated with resin.

[0005] In view of the above circumstances, the present invention provides a method for improving fire resistance regardless of the surface condition of the building material itself. Building materials for fixtures The purpose is to provide the following. [Means for solving the problem]

[0006] In order to achieve the above object, the building material for fixtures according to the present invention is a building material body molded from metal or resin, which is provided with a thermal expansion member, The building material body is Recess where the face material is attached is provided at a position offset to one side in the projection direction, and has a hollow portion on the outer periphery of the recess, the face material is a double glazing in which glass plates are arranged side by side via spacer members, and the recess to which the face material is attached In the method, the setting block interposed between the surface material and the building material body is composed only of the thermal expansion member. One side of the thermal expansion member is provided without gaps in the building material body. It is characterized by the fact that [Effects of the Invention]

[0009] According to the present invention, since the fluid thermal expansion material is applied to the main body of the building material and then hardened, the thermal expansion material can be applied without creating gaps even when the surface of the main body of the building material has protrusions such as screws or projections, or even in parts that are configured as recessed corners. Therefore, there is no risk of the thermal expansion material peeling off and falling off over time, and it is possible to improve fire resistance. [Brief explanation of the drawings]

[0010] [Figure 1] This is a conceptual illustration of a manufacturing method for building materials for fixtures, which is an embodiment of the present invention, where (a) is an oblique view showing the overview, (b) is a cross-sectional view, and (c) is a conceptual diagram showing how a thermally expandable material is applied with a shaping plate attached to the nozzle. [Figure 2] 2 is a perspective view showing the state in which the building material for joinery manufactured by the method shown in FIG. 1 has been cut by a cutting tool. FIG. [Figure 3] FIG. 1 is a cross-sectional view showing a first modified example of the building material for fixtures according to the present invention. [Figure 4] FIG. 10 is a cross-sectional view showing a modified example 2 of the building material for fixtures according to the present invention. [Figure 5] FIG. 10 is a cross-sectional view showing a modified example 3 of the building material for fixtures according to the present invention. [Figure 6] 10A and 10B show other modified examples of the fittings building material according to the present invention, where (a) is a cross-sectional view of modified example 4 and (b) is a cross-sectional view of modified example 5. FIG. [Figure 7] FIG. 10 is a cross-sectional view showing a sixth modified example of the building material for fixtures according to the present invention. [Figure 8] FIG. 10 is a cross-sectional view showing a modified example 7 of the building material for fixtures according to the present invention. [Figure 9] FIG. 10 is a cross-sectional view showing Modified Example 8 of the building material for fixtures according to the present invention. [Figure 10] FIG. 10 is a perspective view showing a modified example 9 of the building material for fixtures according to the present invention. [Figure 11] FIG. 1 is a perspective view showing a modified example 10 of the building material for fixtures according to the present invention. [Figure 12] 11 shows an eleventh modified example of the building material for fixtures according to the present invention, in which (a) is a perspective view, and (b) is a view showing the state in which the building materials for fixtures shown in the eleventh modified example are joined together. FIG. [Figure 13] FIG. 12 is a perspective view showing a modified example 12 of the building material for fixtures according to the present invention. [Figure 14] FIG. 13 is a perspective view showing a modified example 13 of the building material for fixtures according to the present invention. [Figure 15] 1 is a longitudinal cross-sectional view of a main part of a first embodiment of a building material for fixtures according to the present invention. [Figure 16] FIG. 10 is a longitudinal cross-sectional view of a main part showing Example 2 of the building material for fixtures according to the present invention. [Figure 17] FIG. 10 is a longitudinal cross-sectional view of a main part of a third embodiment of the building material for fixtures according to the present invention. [Figure 18] 10A and 10B show a fourth embodiment of the building material for fixtures according to the present invention, in which (a) is a longitudinal cross-sectional view of the main part, and (b) is a longitudinal cross-sectional view showing the application of a thermally expandable member. [Figure 19] This shows Example 5 of the building material for fixtures according to the present invention, where (a) is a conceptual diagram showing how a thermally expandable material is applied using a nozzle with an inclined outlet, and (b) is a conceptual diagram showing how a thermally expandable material is applied using a nozzle with a normal outlet. [Figure 20]This shows Example 6 of the building material for fixtures according to the present invention, where (a) is a conceptual diagram showing how the thermally expandable material is applied when the nozzle axis is positioned so that it is perpendicular to the surface, and (b) is a conceptual diagram showing how the thermally expandable material is applied when the nozzle axis is positioned so that it is inclined relative to the surface. [Figure 21] FIG. 10 is a cross-sectional view of a main part of Example 7 of the building material for fixtures according to the present invention. [Figure 22] FIG. 10 is a cross-sectional view of a main part of Example 8 of the building material for fixtures according to the present invention. [Figure 23] FIG. 10 is a cross-sectional view of a main part of Example 9 of the building material for fixtures according to the present invention. [Figure 24] FIG. 13 is a longitudinal cross-sectional view of a main part of a tenth embodiment of a building material for fixtures according to the present invention. [Figure 25] FIG. 11 is a cross-sectional view showing Example 11 of the building material for fixtures according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a building material for fixtures and a method for manufacturing a building material for fixtures according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a manufacturing method for a building material for fittings according to an embodiment of the present invention. The building material for fittings 1 illustrated here is used as a frame that constitutes the frame of a fitting or as a frame that constitutes a shoji screen, and is constructed by providing a thermally expandable member 3 on the surface 2a of a building material body 2A. The building material body 2A is molded from a metal such as aluminum alloy or stainless steel, or from resin. The thermally expandable member 3 is a non-flammable or flame-retardant fire-resistant member that expands due to heat. In this embodiment, the thermally expandable member 3 is a material that can be applied in a fluid state and then hardens. Furthermore, in this embodiment, an adhesive is mixed into the thermally expandable member 3 to impart adhesive properties. For example, thermally expandable graphite can be used as this type of thermally expandable member 3.

[0012] When applying the thermally expandable material 3 to the building material body 2A, it is applied by discharging the material in a fluid state from a nozzle 10 onto the surface 2a of the building material body 2A. At this time, by moving the building material body 2A and the nozzle 10 relative to each other, the thermally expandable material 3 can be applied continuously to the surface 2a of the building material body 2A in the desired width and thickness, as shown in Figure 1(b). Furthermore, by attaching a shaping plate 11 to the nozzle 10 as shown in Figure 1(c), it is also possible to gradually shape the thermally expandable material 3 applied to the surface 2a of the building material body 2A into a flat shape before it hardens.

[0013] After the thermally expandable member 3 is applied to the surface 2a of the building material body 2A, the thermally expandable member 3 can be hardened on the surface 2a of the building material body 2A over time or by chemical treatment such as mixing a curing agent to promote the hardening reaction. If necessary after the thermally expandable member 3 has hardened, the building material body 2A and the thermally expandable member 3 can be cut simultaneously with a cutting tool 20 such as a cutter to adjust them to the desired length, as shown in Figure 2.

[0014] With the fittings building material 1 configured as described above, the thermally expandable member 3 in a fluid state hardens on the surface 2a of the building material body 2A. This means that even if the surface 2a of the building material body 2A is somewhat uneven due to protrusions such as screws or projections, the thermally expandable member 3 can be applied without creating gaps between the surface 2a and the building material body 2A. Moreover, because the thermally expandable member 3 can be applied continuously regardless of the length of the building material body 2A, there is no risk of seams or gaps occurring along the thermally expandable member 3. Therefore, if fittings are constructed using the fittings building material 1 described above, there is no risk of the thermally expandable member 3 falling off even after long-term use, and it can expand when exposed to high temperatures to seal gaps, thereby improving fire resistance. Furthermore, in the building material 1 for fixtures, which is constructed by applying and hardening a thermally expandable member 3 to the building material body 2A and then cutting it, the thermally expandable member 3 is provided without gaps all the way to the edge of the building material body 2A, and when the building materials are connected to each other to form a fixture, there is no risk of gaps occurring between the thermally expandable members 3 of adjacent building materials for fixtures 1.

[0015] When applying the thermally expandable member 3, it is not necessary to prepare the surface 2a of the building material body 2A flat. Groove-shaped recesses 2b may be intentionally created by, for example, pre-drawing lines on the surface 2a of the building material body 2B, as in the fittings building material 1 of Variation 1 shown in Figure 3. Applying the fluid thermally expandable member 3 with the recesses 2b already formed on the surface 2a of the building material body 2B increases the contact area between the building material body 2B and the thermally expandable member 3 after hardening, improving the bond strength between them. This more reliably prevents the thermally expandable member 3 from falling off the building material body 2B, further improving fire resistance.

[0016] Furthermore, as in the fittings building material 1 of Modification 2 shown in FIG. 4 and the fittings building material 1 of Modification 3 shown in FIG. 5, groove-shaped recesses 2c, 2d corresponding to the entire width of the thermally expandable member 3 may be formed in advance on the surface 2a of the fittings body 2C, 2D, and the thermally expandable member 3 may be applied to each recess 2c, 2d. Even in this case, both side edges of the thermally expandable member 3 contact the fittings body 2C, 2D, improving the bonding strength with the fittings body 2C, 2D after hardening. In particular, as in Modification 3 shown in FIG. 5, if the recess 2d is configured in a so-called dovetail groove shape, the internal width of the thermally expandable member 3 is larger than the opening width of the recess 2d, thereby more reliably preventing the thermally expandable member 3 from falling off the fittings body 2D. Furthermore, the recesses 2c, 2d accurately determine the positions where the thermally expandable member 3 is provided, making it easy to mass-produce fittings building materials 1 of consistent quality. In addition, the surface 3a of the thermally expandable member 3 can be set to be lower than the surface 2a of the building material main body 2C, 2D, and even if a movable object such as a friction stay or slider is provided on the surface 2a of the building material main body 2C, 2D, there will be no interference with the thermally expandable member 3, which has the advantage of reducing restrictions on the use of the building material for fixtures 1.

[0017] The method of forming the recesses 2c, 2d on the surface 2a of the building material bodies 2C, 2D is not limited to the methods shown in FIGS. 4 and 5. Alternatively, two guide members 4a, 4b may be provided on the surface 2a of the building material body 2A with a gap between them, as shown in the building material for fixtures 1 of Variation 4 shown in FIG. 6(a) and the building material for fixtures 1 of Variation 5 shown in FIG. 6(b). More specifically, Variation 4 shown in FIG. 6(a) forms a rectangular cross-sectional recess 2e by providing thin plate-like guide members 4a parallel to each other on the surface 2a of the building material body 2A. On the other hand, Variation 5 shown in FIG. 6(b) forms a trapezoidal cross-sectional recess 2f on the surface 2a of the building material body 2A by providing a guide member 4b with a triangular cross-section. In addition to the above-mentioned effects, Variations 4 and 5 also have the advantage of simplifying the shape of the building material body 2A, making it easier to mold. The guide members 4a and 4b provided on the building material body 2A may be removed from the building material body 2A after the thermally expandable member 3 has hardened, or may be left as they are.

[0018] In all of the above examples, the thermally expandable member 3 is applied so that its surface 3a is parallel to the surface 2a of the building material bodies 2A, 2B, 2C, and 2D, but the present invention is not necessarily limited to this. For example, as in the building material for fixtures 1 of Modification 6 shown in Figure 7, the thermally expandable member 3 may be applied and cured in a state inclined in one direction relative to the surface 2a of the building material body 2A, or as in the building material for fixtures 1 of Modification 7 shown in Figure 8, the thermally expandable member 3 may be applied and cured so as to have an irregular cross-sectional shape. When the thermally expandable member 3 is applied and cured so that its surface 3a is inclined or so as to have an irregular cross-sectional shape, it is possible to impart directionality to the direction of expansion, as indicated by the arrows and two-dot chain lines in the figures, and it is possible to more reliably block areas in the building material that could serve as flame penetration points. More specifically, when the thermally expandable member 3 is applied and cured with the surface 3a inclined so that the right side is lower, as in Variation 6 of FIG. 7, it is expected that the thermally expandable member 3 will tend to expand toward the right side more easily than when it is not inclined. Therefore, if there is a concern that a gap that could serve as a flame penetration point will be formed on the right side of FIG. 7, applying and curing the thermally expandable member 3 to form this shape will more reliably close any gap that actually occurs. Furthermore, when the thermally expandable member 3 is applied and cured so that the cross section is a horizontally wide oval with a depression 3b in the center of the surface 3a, as in Variation 7 of FIG. 8, it is expected that the thermally expandable member 3 will tend to expand toward the upper center. Therefore, if there is a concern that a gap that could serve as a flame penetration point will be formed in the upper center of FIG. 8, applying and curing the thermally expandable member 3 to form this shape will more reliably close any gap that actually occurs.

[0019] When providing directionality in the expansion direction of the thermally expandable member 3, it is not limited to the configurations of Modifications 6 and 7. For example, as in the case of the fittings building material 1 of Modification 8 shown in Figure 9, the thermally expandable member 3 may be applied and cured on the surface 2a of the building material body 2A in a cross-sectional shape in which the plate thickness is equal to or greater than the left-right width. In Modification 8, not only is the plate thickness increased compared to that shown in Figure 1(b), but the left-right width dimensions are also reduced. Therefore, it is possible to expand more of the thermally expandable member 3 upward without significantly increasing the amount of thermally expandable member 3 applied.

[0020] To increase the expansion rate of the thermally expandable member 3 only in a specific area, as in the case of the fittings / building material 1 of Variation 9 shown in Figure 10, the thermally expandable member 3 can be applied to the surface 2a of the main building material 2A over a certain width, and then a thermally expandable member 3' can be applied to the specific area. The thermally expandable member 3' applied in a specific area can be either an applied and cured material, or a pre-formed, solidified material can be applied. As a specific example, a flowable thermally expandable member 3 can be applied and cured along the entire length of the bottom frame of a sliding window, and a pre-formed thermally expandable member 3' can be applied to the position corresponding to the sash of a shoji screen. Applying the thermally expandable members 3, 3' in this manner increases the expansion rate in the area corresponding to the sash, preventing fire penetration even if a gap occurs between the bottom frame and the sash. Even in this case, since the thermal expansion member 3' is increased only in the necessary areas, the amount of the thermal expansion members 3, 3' used can be reduced, and it is possible to prevent a situation in which the manufacturing cost increases significantly. The location where the fixed-shaped thermal expansion member 3' is attached may be a position adjacent to the applied and cured thermal expansion member 3 on the surface 2a of the building material body 2A, or it may be a position overlapping the applied and cured thermal expansion member 3.

[0021] In all of the above examples, the thermally expandable member 3 is applied continuously to the surface 2a of the building material bodies 2A, 2B, 2C, and 2D, but this does not necessarily have to be continuous. For example, as in the building material 1 for fixtures of Variation 10 shown in Figure 11, the thermally expandable member 3 may be applied and cured intermittently only in the necessary areas. In this case, the intermittently applied thermally expandable members 3 do not need to be arranged in the same straight line. In the building material for fixtures 1 in which the thermally expandable member 3 is arranged so as to be separated midway, as in Variation 10, a drainage path can be set to cross the thermally expandable member 3, which has the advantage of ensuring reliable drainage without providing a large number of drainage holes in the building material body 2A.

[0022] The thermally expandable member 3 does not necessarily have to be provided along the entire length of the building material body 2A, and may be applied and hardened so as to be spaced apart from the end face 2g of the building material body 2E, as in the fittings building material 1 of modified example 11 shown in Figure 12(a). If the thermally expandable member 3 is provided so as to be spaced apart from the end face 2g of the building material body 2E, as in modified example 11, when the ends of the fittings building materials 1 are joined together to form a fitting, as shown in Figure 12(b), it is possible to prevent the thermally expandable members 3 provided on the building material body 2E from interfering with each other, and there is no impact on the manufacturing process of the fittings.

[0023] The thermally expandable member 3 does not necessarily have to be continuous in a straight line, nor does it necessarily have to be arranged on the same plane. For example, in the building material 1 for fixtures of Variation 12 shown in FIG. 13, the thermally expandable member 3 is arranged three-dimensionally on a building material main body 2F having an L-shaped cross section, with the first flat plate portion 2F1 and the second flat plate portion 2F2 arranged perpendicular to each other. That is, in Variation 12, the first thermally expandable portion 3-1 is applied longitudinally to the surface 2a of the first flat plate portion 2F1, and then the second thermally expandable portion 3-2 is applied on the same surface 2a, with the application direction changed by 90° so that they are curved relative to each other. Furthermore, the application direction is changed by 90° from the second thermally expandable portion 3-2 to the surface 2a of the second flat plate portion 2F2, and the third thermally expandable portion 3-3 is applied. By changing the application direction in this way, it is possible to arrange the thermally expandable member 3 continuously in two or three dimensions without any interruptions along the way.

[0024] Some thermally expandable members 3 have different expansion start temperatures. Therefore, in the building material 1 for fixtures of Modification 13 shown in FIG. 14, two types of thermally expandable members 3A and 3B with different expansion start temperatures are stacked on top of each other on the surface 2a of the building material body 2A. The two types of thermally expandable members 3A and 3B may be applied one after the other, or they may be applied simultaneously using a nozzle with two outlets. The order of application is preferably such that the layer with the lowest expansion start temperature is placed on top. In the illustrated example, the thermally expandable member 3A of the upper layer is set to have a lower expansion start temperature than the thermally expandable member 3B of the lower layer.

[0025] In this way, the building material 1 for fixtures, in which two types of thermally expandable members 3A, 3B with different expansion start temperatures are attached to the surface 2a of the building material body 2A, allows the thermally expandable members 3A, 3B to expand at different times, thereby reliably sealing gaps that could serve as fire penetration points across a wide temperature range. For example, when the building material body 2A reaches a temperature of approximately 200°C, the first thermally expandable member 3A, which has a lower expansion start temperature, expands first, sealing any gaps that had formed up to that point. If the temperature of the building material body 2A subsequently rises to approximately 800°C and new gaps are formed due to thermal deformation, the second thermally expandable member 3B, which has a higher expansion start temperature, expands to seal the gaps, providing significant fire protection benefits. Furthermore, because the two types of thermally expandable members 3A, 3B are stacked on top of each other, it does not require as much space as a single type of thermally expandable member. However, the two types of thermally expandable members 3A, 3B do not necessarily need to be stacked; they may be arranged side-by-side. The number of types of thermally expandable members provided in the building material body 2A does not necessarily have to be two, and three or more types of thermally expandable members with different expansion start temperatures may be provided adjacent to each other. Furthermore, multiple types of thermally expandable members with different expansion start temperatures do not need to be applied in the same amount, and may be applied in different amounts depending on the application.

[0026] In the following, examples of the present invention using building materials for fixtures with more specific shapes will be described. In all examples, the thermally expandable member provided on the building material body is applied in a fluid state as described above and then hardened.

[0027] In Example 1 shown in FIG. 15 and Example 2 shown in FIG. 16, a thermally expandable member 3 is applied to the glass receiving groove 31a of a building material 30 for fittings, which serves as the bottom frame of a shoji screen. As apparent from the figure, the application of a fluid thermally expandable member 3 has the advantage of enabling the thermally expandable member 3 to be installed without gaps even in recessed corners 31b. Furthermore, because the fluid thermally expandable member 3 has adhesive properties, by placing a setting block SB before curing, the setting block SB can be fixed to the building material 31 without the need for a separate adhesive, as shown in Example 1 of FIG. 15. Furthermore, by using a thermally expandable member 3 that exhibits the desired strength when cured, the thermally expandable member 3 can also function as a setting block without the need for a separate setting block, as shown in Example 2 of FIG. 16. In Examples 1 and 2, when the building material for fixtures 30 reaches a high temperature, the thermally expandable member 3 expands, blocking the glass storage groove 31a, thereby preventing the formation of a flame penetration hole in the building material for fixtures 30 in the indoor / outdoor directions.

[0028] In Example 3 shown in Figure 17, similar to Example 1, a thermal expansion member 3 is provided in a hollow portion 30a' of a bottom frame 30' of a shoji screen, which is located on the outer periphery of the glass receiving groove 31a' that receives the panel 32. As is clear from the figure, the thermal expansion member 3 cannot be directly applied to the hollow portion 30a' of the bottom frame 30' because the periphery is closed. However, if the thermal expansion member 3 is applied to the reinforcing member 33 to be disposed in the hollow portion 30a' in advance, it becomes possible to apply the thermal expansion member 3 to the hollow portion 30a' of the bottom frame 30' as shown in the figure. In Example 3, the reinforcing member 33 corresponds to the main body of the building material, and the reinforcing member 33 to which the thermal expansion member 3 is applied corresponds to the building material for fittings. Note that when a thermal expansion member is provided on a reinforcing member as the main body of the building material, it is not necessarily limited to the reinforcing member 33 disposed in the hollow portion 30a'.

[0029] In Example 4 shown in Figure 18, similar to Example 1, a thermally expandable member 3 is applied to the inside of the glass receiving groove 31a in the building material body 31 of a building material for fittings 30 that will serve as the bottom frame of a shoji screen. However, in Example 4, as shown in Figure 18(a), the thermally expandable member 3 is applied only to both sides, avoiding the drainage holes 31c. More specifically, in Example 4, the thermally expandable member 3 is applied so that the plate thickness gradually decreases toward the drainage holes 31c. When applying the thermally expandable member 3 to an inside corner 31b, as shown in Figure 18(b), the nozzle 10 is positioned so that the discharge outlet 10a faces the valley of the inside corner 31b, and the thermally expandable member 3 is applied to the building material body 31 from this state. When the thermally expandable member 3 is applied in the manner described above, not only can gaps be prevented from occurring between the recessed corner portion 31b, but the surface 3a of the thermally expandable member 3 gradually becomes lower than the drainage holes 31c, facilitating the application of the thermally expandable member 3. In Example 4, when the building material for fittings 30 reaches a high temperature, the thermally expandable member 3 expands, blocking the glass housing groove 31a and further blocking the drainage holes 31c, preventing a fire from penetrating the interior and exterior of the building material for fittings 30. During normal use of the fitting, water that seeps into the glass housing groove 31a is guided by the sloping surface 3a of the thermally expandable member 3 to the drainage holes 31c and is then discharged to the outside through the drainage holes 31c and the lower drainage holes 31d, which is advantageous in terms of drainage and prevents water from accumulating in the glass housing groove 31a for a long period of time. Although the application of the thermal expansion member 3 to the drainage hole 31c is avoided, it is also preferable not to apply the thermal expansion member 3 to parts that will be joined to other building materials for building fixtures, parts where parts are attached, parts that require processing, etc. In addition, Examples 1, 2, and 4 illustrate the bottom frame of a shoji screen as the building material for building fixtures 30, but the same can be applied to the top frame or vertical frame, or the top frame, bottom frame, and vertical frame that make up the frame. Furthermore, the target on which the reinforcing member 33 is provided may be the top frame or vertical frame, or the top frame, bottom frame, and vertical frame that make up the frame.

[0030] In Example 5 shown in Figure 19, a thermally expandable member 3 is applied to the inner surface 41c of a groove 41b formed between opposing wall members 41a in a building material body 41 of a building material for fittings 40 serving as a door frame for a shoji screen. To apply the thermally expandable member 3 to the inner surface 41c of the groove 41b, a nozzle 10 is inserted between the wall members 41a at an angle. In this case, by using a nozzle 10 with an inclined tip, as shown in Figure 19(a), the thermally expandable member 3 can be applied to a consistent thickness. Furthermore, by using a nozzle 10 with a tip perpendicular to the axis, as shown in Figure 19(b), the thermally expandable member 3 can be applied to varying thicknesses. In Example 5, when the building material for fittings 40 reaches a high temperature, the thermally expandable member 3 expands, sealing the gap between the frame (not shown), thereby preventing flames from penetrating the building material for fittings 40 in the indoor and outdoor directions.

[0031] In Example 6 shown in Figure 20, a thermally expandable member 3 is applied to the inclined surface 51a of the building material body 51 of a building material for fittings 50, which serves as a lower frame. When applying the thermally expandable member 3 to the inclined surface 51a, as shown in Figure 20(a), the nozzle 10 can be positioned so that its axis is perpendicular to the surface 51a, allowing the thermally expandable member 3 to be applied with a consistent thickness. Furthermore, as shown in Figure 20(b), the nozzle 10 can be positioned so that its axis is inclined relative to the surface 51a, allowing the thermally expandable member 3 to be applied with varying thicknesses. In Example 6, when the building material for fittings 50 reaches a high temperature, the thermally expandable member 3 expands, sealing the gap between the fittings and a shoji screen (not shown), thereby preventing flames from penetrating the building material for fittings 50 in the indoor / outdoor directions. Although Example 6 illustrates a lower frame as an example of the building material for fittings 50, it may also be applied to an upper frame or a vertical frame.

[0032] In Example 7 shown in FIG. 21 , Example 8 shown in FIG. 22 , and Example 9 shown in FIG. 23 , a thermally expandable member 3 is applied to a building material body 61 of a building material for fixtures 60 that serves as a door end frame. In Example 7, the thermally expandable member 3 is applied to the inner peripheral surface 61a of the building material body 61 that faces the end face 62a of the door panel 62. The thermally expandable member 3 is a flat plate with a constant thickness and is provided along the entire length of the building material body 61. In Example 8, the thermally expandable member 3 is provided in a recess 61c of a door stop portion 61b that protrudes inward from the building material body 61. The recess 61c of the door stop portion 61b is fitted with a sealing member 63 that seals between it and the door panel 62, and the opening width is configured to be narrower than the interior width. When the sealing member 63 is attached, the thermally expandable member 3 is not exposed to the outside. That is, in Example 8, the sealing member 63 is attached so as to cover the thermal expansion member 3 provided in the recess 61c. In Example 9, similar to Example 7, the thermal expansion member 3 is provided on the inner peripheral surface 61a of the building material body 61. However, in Example 9, the thermal expansion member 3 is applied so as to cover the recessed corner 61e between the inner peripheral surface 61a and the protrusion 61d protruding from the inner peripheral surface 61a. The thickness of the thermal expansion member 3 is configured to gradually decrease toward one side (e.g., the outdoor side). The surface 3a of the thermal expansion member 3 faces the door panel 62. In Examples 7 to 9, when the building material for fittings 60 reaches a high temperature, the thermal expansion member 3 expands, sealing the gap between the door panel 62, thereby preventing a fire from penetrating the building material for fittings 60 in the indoor / outdoor directions. In addition, in Examples 7 to 9, a door frame is exemplified as the fitting building material 60, but it is of course possible to apply it to a frame on the hanging side, a top frame, or a bottom frame.

[0033] In Example 10 shown in FIG. 24, a thermally expandable member 3 is applied to a building material body 71 of a building material 70 for fittings, which serves as a door sill. In Example 10, the thermally expandable member 3 is applied to a gap (recess) 71c between an inner peripheral surface 71a of the building material body 71 and a door stop portion 71b that protrudes inward from the inner peripheral surface 71a of the building material body 71. More specifically, the door stop portion 71b in Example 10 protrudes from an edge on one side (e.g., the indoor side) of the inner peripheral surface 71a of the building material body 71, and has a protruding portion 71d that protrudes from the protruding edge toward the other side (e.g., the outdoor side). The protruding portion 71d forms a recess 71e for mounting a sealing member 73 that seals the door panel 72. A groove-shaped gap 71c is secured between the protruding portion 71d and the inner peripheral surface 71a of the building material body 71. The above-mentioned thermally expandable member 3 is applied to the gap 71c secured between the inner peripheral surface 71a of the building material main body 71 and the protrusion 71d. In Example 10, too, when the sealing member 73 is attached to the recess 71e, the thermally expandable member 3 is not exposed to the outside. In Example 10, when the building material for fixtures 70 reaches a high temperature, the thermally expandable member 3 expands, thereby sealing the gap between the door panel 72, thereby preventing the formation of a flame penetration hole in the building material for fixtures 70 in the indoor / outdoor directions. Note that, although Example 10 illustrates a door bottom frame as an example of the building material for fixtures, it may also be applied to the door top frame or vertical frame.

[0034] In Example 11 shown in Figure 25, a thermally expandable member 3 is applied to the outer peripheral surfaces of a building material body 81 of a fitting building material 80 serving as a surface material for a shoji screen. The building material body 81 is a double-glazed glass formed by laminating two glass sheets 81B via a spacer 81A. The spacer 81A is, for example, an aluminum cylindrical body 81A1 filled with a desiccant 81A2 and bonded to each glass sheet 81B via the cylindrical body 81A1. Furthermore, a sealant 81C is filled in the portion of the outer peripheral side of the spacer 81A. The sealant 81C is made of resin and is bonded to the spacer 81A and the two glass sheets 81B. The thermally expandable member 3 is applied to cover the sealant 81C and the outer peripheral surfaces 81a of the two glass sheets 81B. Frames are attached to the building material body 81 around all four sides to form a shoji screen. When attaching the frame, the thermal expansion member 3 may function as a setting block, as described above. When the thermal expansion member 3 is provided on a double glazing as the building material main body 81, it is not necessarily required to provide it so as to cover the outer peripheral surface 81a of the building material main body 81. For example, instead of the above-described sealing material 81C, the thermal expansion member 3 may be applied so as to come into contact with the spacer 81A and the surfaces of the two glass plates 81B.

[0035] In the above-described embodiment, building materials for fittings are exemplified as frames and stiles, and as facings for shoji screens. However, the present invention is not limited to these, and other components that constitute fittings may also be used. For example, friction stays and hinges that support shoji screens on frames so that they can be opened and closed, as well as reinforcing materials attached to frames and stiles, may also be used as building materials for fittings to which the thermally expandable material is applied. Furthermore, building materials for fittings are not necessarily limited to those that support shoji screens or door panels so that they can be opened and closed, and may also be those that constitute shutter frames that support shutters, for example.

[0036] As described above, the building material for fixtures according to the present invention is characterized in that a thermally expandable member that is applied in a fluid state and hardened is provided on a building material body molded from metal or resin. According to this invention, since the fluid thermal expansion material is applied to the building material body and then hardened, the thermal expansion material can be applied without creating gaps even if the surface of the building material body has protrusions such as screws or projections, or even in parts that are configured as recessed corners. Therefore, there is no risk of the thermal expansion material peeling off and falling off over time, and fire resistance can be improved.

[0037] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member is provided in a groove-shaped recess provided in the building material body. According to this invention, by providing a thermal expansion member in the recess, the position of the thermal expansion member is always the same, and building materials for fixtures with consistent quality can be easily manufactured.

[0038] Furthermore, the present invention is characterized in that in the above-mentioned building material for fixtures, the recess is configured so that the opening width is narrower than the interior width. According to this invention, the internal dimensions of the recess are larger than the opening width, so that it is possible to more reliably prevent the thermally expandable member from falling off from the building material body.

[0039] The present invention is also characterized in that in the above-mentioned building material for fixtures, the thermally expandable member is provided in the recess in which the sealing member is attached. According to this invention, since it is not necessary to form a dedicated recess for providing the thermal expansion member, it is possible to prevent the shape of the building material body from becoming complicated and to facilitate its molding.

[0040] The present invention is also characterized in that in the above-mentioned building material for fixtures, the thermally expandable member is provided in the recess where the facing material is attached. According to this invention, since it is not necessary to form a dedicated recess for providing the thermal expansion member, it is possible to prevent the shape of the building material body from becoming complicated and to facilitate its molding.

[0041] The present invention is also characterized in that, in the above-mentioned building material for fixtures, two guide members are provided on the building material body, and the thermally expandable member is provided between these two guide members. According to this invention, the thermally expandable member is also bonded to the guide member, so that it is possible to prevent the thermally expandable member from falling off the building material body.

[0042] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable members are provided in different thicknesses from the surface of the building material body. According to this invention, the thermally expandable member can be made to have a directional expansion, which has the advantage that gaps that could become flame penetration points can be more reliably blocked.

[0043] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member is provided so that the plate thickness gradually decreases toward the drainage hole provided in the building material body. According to this invention, the inclination of the thermal expansion member allows water to be guided to the drain hole, thereby improving drainage performance.

[0044] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member is provided at an inside corner portion provided in the building material body. According to this invention, the thermally expandable member comes into contact with the two surfaces of the building material body that form the inside corner, thereby improving the bonding strength between the thermally expandable member and the building material body.

[0045] The present invention is also characterized in that, in the above-mentioned building material for fixtures, a fixed-shape thermal expansion member is attached to the building material body to which the thermal expansion member is applied. According to this invention, the amount of expansion of the thermally expandable member can be increased in a desired portion, and gaps can be closed more reliably.

[0046] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member has a first thermally expandable member and a second thermally expandable member that expand at different temperatures, and these first thermally expandable member and the second thermally expandable member are arranged adjacent to each other. According to this invention, the thermally expandable member expands with a time lag, making it possible to seal gaps between the time when the thermal deformation of the building material body is small and the time when it subsequently expands, which is extremely advantageous in terms of fire resistance.

[0047] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the first thermally expandable member has an expansion start temperature set lower than that of the second thermally expandable member, and is arranged so as to overlap the surface of the second thermally expandable member. According to the present invention, it is possible to provide two types of thermal expansion members without requiring a large space.

[0048] Furthermore, the present invention is characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member is provided intermittently so as to be divided midway. According to the present invention, it is possible to set a drainage path so as to cross the thermal expansion member.

[0049] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the thermally expandable member is provided with its end separated from the end face of the building material body. According to this invention, it is possible to prevent the thermally expandable members from interfering with each other when joining a plurality of building material bodies.

[0050] The building material for fixtures according to the present invention is characterized in that a thermally expandable material that is applied in a fluid state and hardened is provided on the outer periphery of the main body of the building material, which is configured in a plate shape. According to this invention, it is possible to prevent gaps from occurring in the outer peripheral region of the plate-shaped building material body.

[0051] The present invention is also characterized in that, in the above-mentioned building material for fixtures, the building material body is a double-glazed glass formed by stacking multiple glass plates via spacers, and the thermal expansion member is provided in a sealing material filled on the outer periphery of the spacer between the glass plates. According to this invention, it is possible to close the gap between the double glazing and the frame without providing a thermal expansion member on the frame side.

[0052] In addition, the manufacturing method of building materials for fixtures according to the present invention is characterized in that a thermally expandable material in a fluid state is applied to a building material body molded from metal or resin, and then the thermally expandable material is hardened. According to this invention, since the fluid thermal expansion material is applied to the building material body and then hardened, the thermal expansion material can be applied without creating gaps even if the surface of the building material body has protrusions such as screws or projections, or even in parts that are configured as recessed corners. Therefore, there is no risk of the thermal expansion material peeling off and falling off over time, and fire resistance can be improved.

[0053] Furthermore, the present invention is characterized in that in the manufacturing method of the building material for fixtures described above, the thermally expandable member is applied in a state where the thickness from the surface of the building material body is different. According to this invention, the thermally expandable member can be made to expand in a directional manner, and gaps that could serve as openings for flames can be more reliably blocked.

[0054] Furthermore, the present invention is characterized in that in the manufacturing method of the above-mentioned building material for fixtures, a nozzle is placed at an angle relative to the surface of the building material body, and the thermally expandable member is applied from the nozzle. According to this invention, it becomes possible to easily apply the thermally expandable material to the building material body in a state where the thickness from the surface of the building material body is different.

[0055] Furthermore, the present invention is characterized in that in the manufacturing method of the building material for fixtures described above, the thermally expandable member is applied from a nozzle with an inclined tip. According to this invention, it is possible to easily apply the thermally expandable material to the building material body in a state where the thickness from the surface of the building material body is different.

[0056] Furthermore, the present invention is characterized in that in the manufacturing method of the building material for fixtures described above, the applied thermally expandable member is shaped before the thermally expandable member hardens. According to this invention, the applied thermal expansion member can be adjusted to any shape before it hardens, so that it is possible to provide a thermal expansion member of any shape depending on the application.

[0057] The present invention is also characterized in that, in the manufacturing method of the above-mentioned building materials for fixtures, a nozzle is positioned so that the discharge outlet faces the valley of an inside corner provided in the building material body, and the thermally expandable material is applied to the inside corner from the nozzle. According to this invention, the thermally expandable material is applied with the discharge port facing the inside corner, which more reliably prevents gaps from forming between the building material body and the thermally expandable material.

[0058] Furthermore, the present invention is characterized in that in the manufacturing method of the building material for fixtures described above, the thermally expandable member is cut to a desired length in a state where it is applied. According to this invention, it is possible to provide a thermal expansion member without gaps across both ends of the building material body without having to match the longitudinal dimensions of the thermal expansion member to the dimensions of the building material body. [Explanation of symbols]

[0059] 1,30,40,50,60,70,80 Building materials for fixtures, 2A,2B,2C,2D,2E,2F,31,41,51,61,71,81 Building material body, 2a,51a,61a Surface, 2b,2c,2d,2e,2f,61c,71e Recess, 2g End surface, 3,3',3A,3B Thermal expansion member, 4a,4b Guide member, 10 Nozzle, 10a Discharge port, 31a Glass accommodation groove, 31b,61e Corner portion, 31c Drainage hole, 32 Face material, 41c Inner surface, 63,73 Sealing member, 71c Gap, 81A Spacer, 81B Glass plate, 81C Sealing material

Claims

[Claim 1] A thermal expansion member is provided on a building material body molded from metal or resin, The building material body has a recess to which a facing material is attached that is biased to one side in the projection direction, and has a hollow portion on the outer periphery of the recess, the face material is a double-glazed glass in which glass plates are arranged side by side via spacer members, a setting block interposed between the face material and the building material body in the recess where the face material is attached is composed only of the thermally expandable member; A building material for fixtures, characterized in that one side of the thermally expandable member is attached to the building material body without any gaps.

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