Building fixture and method for manufacturing the same

Abstract

To further improve fire resistance.SOLUTION: There is provided a fitting constructed by arranging a building material 10 on an edge of a face material 20. The building material 10 arranged at a lower edge of the face material 20 is provided with a thermally expandable member 30 applied in a fluid state and cured at a position supporting a load of the face material 20. The face material 20 is arranged on the building material 10 using the thermally expandable member 30 as a support member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fitting and a method for manufacturing the fitting.

Background Art

[0002] Recently, high fire resistance has been required for fittings. For this reason, there is provided a fitting in which a shaped thermal expansion member is attached to building materials such as a frame, a stile, or a reinforcing member for reinforcing the frame or the stile. In this type of fitting, when exposed to high temperature during a fire or the like, the thermal expansion member expands due to heating, and the gap between the frame and the stile is closed. As a result, a situation in which a flame penetration opening occurs indoors and outdoors can be prevented, and the fire resistance can be improved (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in building materials arranged at the edge of the face material, there is also provided one in which a thermal expansion member is disposed inside the face material accommodation groove. However, in the face material accommodation groove, a support member called a setting block is often provided between the face material and the building material. For this reason, even if a thermal expansion member is disposed over the entire length inside the face material accommodation groove, there is a concern that the thermal expansion of the thermal expansion member is inhibited in the portion covered by the support member.

[0005] In view of the above circumstances, an object of the present invention is to provide a fitting and a method for manufacturing the fitting that can further improve fire resistance.

Means for Solving the Problems

[0006] In order to achieve the above object, the fitting according to the present invention is a fitting configured by arranging a building material at an edge portion of a facing material, and among the building materials arranged at a lower edge of the facing material, there is provided a Thermally expandable member at a position configured to support the load of the facing material. The facing material is arranged on the building material with the thermally expandable member as a support member. The facing material is a multilayer glass in which a plurality of glass plates are laminated via a spacer member. The thermally expandable members are provided at positions overlapping respective glass plates in the prospective direction, and the thermally expandable members are arranged side by side in the prospective direction with a gap secured therebetween. One of the thermally expandable members arranged side by side has a first portion continuously extending over the entire length of the glass plate in the longitudinal direction of the building material, and a second portion provided overlapping a part of the first portion. The other of the thermally expandable members arranged side by side is arranged side by side with respect to the second portion and is provided such that the height of the upper surface thereof coincides with the upper surface of the second portion.

Effect of the Invention

[0007] According to the present invention, since the facing material is arranged on the building material with the thermally expandable member as a support member, when in a high-temperature state, the gap with the facing material can be surely filled, and it becomes possible to improve the fire resistance.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Best Mode for Carrying Out the Invention

[0009] Hereinafter, a preferred embodiment of a fitting and a method for manufacturing the fitting according to the present invention will be described in detail with reference to the accompanying drawings. For convenience, the terms "prospective direction" and "search direction" are used hereinafter. The prospective direction is the direction along the depth of the fitting, as indicated by arrow A in the figure. A surface along the prospective direction may be referred to as a prospective surface. The search direction is the direction along the vertical direction perpendicular to the prospective direction in the case of an object extending along the horizontal direction such as a lower frame. In the case of an object extending along the vertical direction such as a vertical frame, the search direction is the direction along the horizontal direction perpendicular to the prospective direction. A surface along the search direction may be referred to as a search surface.

[0010] FIG. 1 conceptually shows a manufacturing method of a fitting according to an embodiment of the present invention. The building material 10 exemplified here is used as a lower frame arranged at the lower edge of a face material in a shoji screen of a fitting, or as a lower frame arranged at the lower edge of a face material in a flush window. The building material used as this lower frame or lower sash (hereinafter simply referred to as the lower building material 10) may be a single metal body made of an extruded profile formed of a metal such as an aluminum alloy, or a single resin body made of an extruded profile formed of a resin, or a composite type having a metal part made of a metal extruded profile and a resin part made of a resin extruded profile. In any case, the lower building material 10 is configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction (a direction perpendicular to the expected direction). In the specific examples shown in FIGS. 2 and 3, a shoji screen for a sliding window to which a composite type lower building material 10 having a resin part 10A on the indoor side and a metal part 10B on the outdoor side is applied is exemplified. As the face material 20, a laminated glass in which two glass plates 22 and 23 are laminated via a spacer member 21 and a gasket 24 is attached to the outer peripheral edge portions of the glass plates 22 and 23 is applied. In particular, in this embodiment, a laminated glass in which a float glass 22 and a wired glass 23 having a higher fire resistance strength than the float glass 22 are laminated is applied.

[0011] As shown in FIG. 1, in the lower building material 10, a face material housing portion 12 is provided in the upper part of the building material main body 11. The building material main body 11 has a portion extending at least along the prospective direction. In the illustrated example, the building material main body 11 having a cylindrical shape with a rectangular cross-section is exemplified. However, the building material main body 11 does not necessarily have to be cylindrical, and for example, it may simply be a plate-like shape extending in the prospective direction. The face material housing portion 12 is a recess formed between the support wall portions 13 on the inner peripheral side of the building material main body 11 by providing support wall portions 13 toward the inner peripheral side from the edge portions on the indoor side and the edge portions on the outdoor side in the building material main body 11, respectively. The dimension of the face material housing portion 12 along the prospective direction is configured to be able to house the face material 20. The support wall portion 13 may be integrally formed with the building material main body 11, or may be configured to form the face material housing portion 12 by being formed separately from the building material main body 11 as a caulking edge and then being attached. Further, as shown in FIGS. 2 and 3, when the lower building material 10 is of a composite type, a face material housing portion 12 may be formed between the support wall portion 13 provided on the metal portion 10B and the support wall portion 13 provided on the resin portion 10A.

[0012] As shown in FIG. 1, a thermally expandable member 30 is provided inside the face material housing portion 12 of the lower building material 10. The thermally expandable member 30 is a non-combustible or flame-retardant refractory member that expands by heat, can be applied in a state having fluidity, and then maintains the state applied to the lower building material 10 by curing. As this type of thermally expandable member 30, for example, a member obtained by adding adhesiveness by mixing an adhesive with thermally expandable graphite can be applied.

[0013] When the thermally expandable member 30 is provided on the lower building material 10, the thermally expandable member 30 in a fluid state is discharged from the nozzle N, and the lower building material 10 and the nozzle N are relatively moved along the longitudinal direction of the lower building material 10, whereby the thermally expandable member 30 can be continuously applied to the building material main body 11 with a desired width and a desired thickness. After the thermally expandable member 30 is applied, the thermally expandable member 30 may be cured over time or by a chemical treatment such as mixing a curing agent to promote the curing reaction.

[0014] As shown in FIG. 2, when the facing material 20 is arranged in the facing material accommodating portion 12 via the reinforcing material 40, the thermally expandable member 30 may be provided on the upper surface of the reinforcing material 40. The reinforcing material 40 is formed of a metal having a higher fire resistance than the lower building material 10, such as a steel material, and has a main plate portion 41 disposed substantially horizontally above the building material main body 11 and support plate portions 42 extending upward from both side edge portions of the main plate portion 41, respectively. Although not shown in the figure, the reinforcing material 40 is attached to the lower building material 10 by screwing a screw into the building material main body 11 through the main plate portion 41. If the upper surface of the main plate portion 41 is flat, the operation when applying the thermally expandable member 30 can be facilitated. That is, if the discharge amount of the thermally expandable member 30 from the nozzle N is maintained constant and the relative movement between the lower building material 10 and the nozzle N is performed at a constant speed, the applied thermally expandable member 30 can have a uniform thickness and a flat upper surface.

[0015] On the other hand, as shown in FIG. 3, when the facing material 20 is disposed in the facing material accommodating portion 12 without providing the reinforcing material 40, regardless of the shape of the inner bottom surface of the facing material accommodating portion 12, that is, the upper surface of the building material body 11, the discharge amount of the thermally expandable member 30 from the nozzle N and the relative movement speed between the lower building material 10 and the nozzle N are controlled so as to apply the thermally expandable member 30 so that the upper surface of the thermally expandable member 30 becomes horizontal. That is, in the illustrated lower building material 10, a substantially cylindrical screw hole 11a is provided so as to protrude from the upper surface of the building material body 11, and the joint portion 11b between the metal portion 10B and the resin portion 10A is configured to protrude from the upper surface of the building material body 11. On the other hand, the thermally expandable member 30 is applied so as to be positioned above the screw hole 11a and the joint portion 11b, and is provided on the lower building material 10 so that the upper surface is flat regardless of the uneven shape of the screw hole 11a and the joint portion 11b. As described above, the thermally expandable member 30 is in a state having fluidity when being applied. Therefore, even when the upper surface of the building material body 11 has a complicated shape, it is possible to easily perform the work of providing the thermally expandable member 30 so that the upper surface is flat. In particular, even when the upper surface of the building material body 11 is flat or inclined, it is difficult to provide a horizontal upper surface by the method of attaching a shaped thermally expandable member. However, according to the method of applying the fluid thermally expandable member 30, it is possible to easily provide a horizontal upper surface.

[0016] As shown in FIGS. 2 to 4, in the present embodiment, in the face material housing portion 12, the thermally expandable members 30 are arranged in parallel in the prospective direction with a gap secured between the edge portions on the indoor side and the edge portions on the outdoor side, respectively. The thermally expandable members 30 on the indoor side are composed of two upper and lower layers. The thermally expandable member located below (hereinafter, referred to as the first thermally expandable member (first portion) 30A when distinguishing) is a portion that is substantially the entire length along the longitudinal direction of the lower building material 10, and is provided in a continuous state including at least the entire length of the end surface located below the face material 20. On the other hand, the thermally expandable member located above (hereinafter, referred to as the second thermally expandable member (second portion) 30B when distinguishing) is partially provided at two positions that are equidistant from the center plane that bisects the longitudinal direction of the face material 20, respectively. The two second thermally expandable members 30B have substantially the same dimensions along the longitudinal direction and substantially the same height of the upper surface. The width of the second thermally expandable member 30B is substantially the same as the width of the first thermally expandable member 30A. The thermally expandable member on the outdoor side (hereinafter, referred to as the third thermally expandable member 30C when distinguishing) is configured to be a single layer, and is partially provided at two positions spaced apart from each other so as to be arranged in parallel at the positions where the second thermally expandable member 30B is provided. The dimension along the longitudinal direction of the third thermally expandable member 30C is substantially the same as that of the second thermally expandable member 30B, and the height of the upper surface is also substantially equal to that of the second thermally expandable member 30B. As is clear from the figure, the dimension of the second thermally expandable member 30B along the prospective direction is set to be larger than the plate thickness of the float glass 22, and it is provided at a position that overlaps the entire width in the prospective direction with respect to the lower surface of the float glass 22. Similarly, the dimension of the third thermally expandable member 30C along the prospective direction is set to be larger than the plate thickness of the wired glass 23, and it is provided at a position that overlaps the entire width in the prospective direction with respect to the lower surface of the wired glass 23. The gap between the second thermally expandable member 30B and the third thermally expandable member 30C has a dimension along the prospective direction that is smaller than the entire width of the spacer member 21 in the face material 20, and is provided at a position included within the width in the prospective direction with respect to the lower surface of the spacer member 21.

[0017] Note that reference numeral 31 in the figure is a thermally expandable member provided inside the building material main body 11, and reference numeral 32 is a thermally expandable member provided on the skirt portion 11c arranged to face the rail of the lower frame (not shown). These thermally expandable members 31 and 32 are pre-formed into thin plate strips in the same manner as conventional ones and are attached to the building material 10 with an adhesive tape or an adhesive.

[0018] According to the lower building material 10 configured as described above, when the facing material 20 is disposed in the facing material accommodating portion 12, the gasket 24 of the facing material 20 abuts against the upper surfaces of the second thermally expandable member 30B and the third thermally expandable member 30C, and the load of the facing material 20 is supported by using these thermally expandable members 30A, 30B, and 30C as support members. As a result, the facing material 20 can be supported by the lower building material 10 without separately requiring a member such as a setting block. Moreover, as described above, since the thermally expandable members 30A, 30B, and 30C are applied in a fluid state, regardless of the unevenness such as the screw holes 11a provided on the upper surface of the building material main body 11, the upper surface with which the facing material 20 abuts can be easily set flat, and there is no possibility of causing problems such as the facing material 20 tilting with respect to the lower building material 10. Further, according to the fixture that supports the facing material 20 as described above, since there is no member that inhibits the thermal expansion of the thermally expandable member 30 between the facing material 20, it is possible to surely block the space between the lower building material 10 and the facing material 20 during a fire, which is also advantageous in terms of fire prevention.

[0019] In the above-described embodiment, while the first thermally expandable member is provided in a portion that is substantially the entire length along the longitudinal direction of the building material, the second and third thermally expandable members serving as support members are provided only in a portion that is a part of the longitudinal dimension of the building material. Therefore, cost reduction can be achieved when manufacturing the fitting. However, the second and third thermally expandable members may also be provided in a portion that is substantially the entire length along the longitudinal direction of the building material, similar to the first thermally expandable member. Also, although gaps are ensured between each other and the thermally expandable members are arranged side by side in the expected direction, it is not necessarily limited to this, and the thermally expandable members may be provided over the entire width along the expected direction of the building material. In this case, the facing material disposed on the building material is not necessarily limited to a multilayer glass formed by laminating two glass plates. In the above-described embodiment, when applying a facing material formed by laminating two glass plates, those having different fire resistance strengths are exemplified, but the present invention is not limited to this. Furthermore, the building material is not necessarily limited to one having an uneven shape on the inner bottom surface of the facing material housing portion, and it can of course be applied to one having a flat inner bottom surface.

[0020] Also, in the above-described embodiment, the thermally expandable member discharged from the nozzle is applied to the building material, but it is not necessarily limited to this, and if it is a thermally expandable member in a fluid state, it may be applied by other methods. For example, it is also possible to apply the thermally expandable member to the building material with a brush or to apply the thermally expandable member by spraying it onto the building material.

[0021] Furthermore, in the above-described embodiment, as the thermally expandable member, one having a dimension along the expected direction set to be larger than the plate thickness of the glass plate is applied, and the thermally expandable member is provided at a position overlapping the entire width in the expected direction with respect to the lower surface of the glass plate. However, the present invention is not limited to this, and for example, the thermally expandable member may be provided so as to overlap only a part of the glass plate in the expected direction.

[0022] As described above, the fitting according to the present invention is a fitting configured by arranging building materials at the edge of a facing material. In the building material arranged at the lower edge of the facing material, a thermally expandable member that is applied in a fluid state and cured is provided at a position that supports the load of the facing material, and the facing material is arranged on the building material with the thermally expandable member as a support member. According to this invention, since the facing material is arranged on the building material with the thermally expandable member as a support member, when it is in a high-temperature state, the gap with the facing material can be reliably filled, and it becomes possible to improve fire resistance. Moreover, since the thermally expandable member is applied in a fluid state and cured, even if there are irregularities in the building material, the upper surface of the thermally expandable member can be easily flattened, which is advantageous for arranging the facing material.

[0023] Further, in the present invention, in the fitting described above, the facing material is a multilayer glass in which a plurality of glass plates are laminated via a spacer member, and the thermally expandable members are provided at positions overlapping each glass plate in the prospective direction. According to this invention, the facing material can be reliably supported, and there is no risk of causing problems such as tilting.

[0024] Further, in the present invention, in the fitting described above, the thermally expandable members are arranged side by side in the prospective direction with a gap secured between them. According to this invention, it becomes possible to suppress the amount of the thermally expandable member used.

[0025] Further, in the present invention, in the fitting described above, one of the thermally expandable members arranged side by side has a first portion that continuously extends over the entire length of the glass plate in the longitudinal direction of the building material, and a second portion provided overlapping a part of the first portion, and the other of the thermally expandable members arranged side by side is arranged side by side with respect to the second portion and is provided such that the height of the upper surface coincides with the upper surface of the second portion. According to this invention, the amount of the thermally expandable member used can be further suppressed.

[0026] Moreover, the manufacturing method of the fitting according to the present invention is a manufacturing method of a fitting configured by arranging a building material at an edge portion of a face material, and at a position where a building material arranged at a lower edge of the face material supports the load of the face material, a thermally expandable member in a fluid state is applied, and after the thermally expandable member is cured, the face material is arranged on the building material using the thermally expandable member as a support member. According to this invention, since the face material is arranged on the building material using the thermally expandable member as a support member, when it is in a high temperature state, the gap with the face material can be surely filled, and it becomes possible to improve the fire resistance.

Explanation of reference numerals

[0027] 10 Building material, 12 Face material housing portion, 20 Face material, 21 Spacer member, 22 Float glass (glass plate), 23 Wired glass (glass plate), 30 (30A, 30B, 30C) Thermally expandable member

Claims

1. A fixture configured by arranging building materials at the edge of a facing material, wherein a thermally expandable member is provided at a position supporting the load of the facing material in the building material arranged at the lower edge of the facing material, and the facing material is arranged on the building material with the thermally expandable member as a support member, the facing material is a multilayer glass formed by laminating a plurality of glass plates via spacer members, the thermally expandable members are provided at positions overlapping respective glass plates in the prospective direction, the thermally expandable members are arranged side by side in the prospective direction with a gap secured between them, one of the thermally expandable members arranged side by side has a first portion continuously extending over a portion corresponding to the entire length of the glass plate in the longitudinal direction of the building material, and a second portion provided overlapping a part of the first portion, the other of the thermally expandable members arranged side by side is arranged side by side with respect to the second portion and is provided such that the height of the upper surface thereof coincides with the upper surface of the second portion. The fixture is characterized by this.

2. A method for manufacturing a fixture configured by arranging building materials at the edge of a multilayer glass formed by laminating a plurality of glass plates via spacer members as a facing material, wherein in the building material arranged at the lower edge of the facing material, a thermally expandable member in a fluid state is applied in a state where the thermally expandable members are arranged side by side in the prospective direction with a gap secured between them at positions supporting the respective loads of the glass plates, and after the thermally expandable member is cured, the facing material is arranged on the building material with the thermally expandable member as a support member, one of the thermally expandable members arranged side by side is applied so as to have a first portion continuously extending over a portion corresponding to the entire length of the glass plate in the longitudinal direction of the building material, and a second portion provided overlapping a part of the first portion, the other of the thermally expandable members arranged side by side is applied side by side with respect to the second portion and is applied such that the height of the upper surface thereof coincides with the upper surface of the second portion. The method for manufacturing a fixture is characterized by this.

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