JP2025010912A - Fittings - Google Patents

Abstract

To provide a fitting capable of preventing a resin cover from falling off due to thermal deformation.SOLUTION: An upper frame 13 has a metal shaped material 80, an outer upper resin molded body 90B, a first metal member 210 attached to the metal shaped material 80, a second metal member 220 sandwiching the outer upper resin molded body 90B between the first metal member 210 and itself, and a fastener made of a metal material that penetrates the outer upper resin molded body 90B and joins the first metal member 210 and the second metal member 220. In this configuration, even when the outer upper resin molded body 90B is thermally deformed in a high-temperature environment, the outer upper resin molded body 90B is maintained in a state sandwiched between the first metal member 210 and the second metal member 220. Therefore, in a high-temperature environment, the outer upper resin molded body 90B can prevent the metal shaped material 80 from being directly exposed to heat and deforming, and ultimately can prevent the formation of flame penetration holes in the metal shaped material 80 in the indoor/outdoor directions due to the thermal deformation, thereby preventing the loss of fire resistance.SELECTED DRAWING: Figure 5

Description

The present invention relates to building materials.

As a fitting in which a screen is slidably arranged relative to a frame, such as a sliding window, a fitting in which the frame has a metal profile and a resin cover is known (see, for example, Patent Document 1). In this fitting, the resin cover is engaged with the metal profile in a state where it covers the visible surface on the inner periphery of the metal profile. The resin cover improves, for example, the aesthetic appearance, insulation, fire resistance, and moisture resistance.

JP 2018-80550 A

In a configuration like that of Patent Document 1, if the resin cover is thermally deformed in a high-temperature environment such as during a fire, and the resin cover is released from its engagement with the metal profile and falls off, the metal profile becomes exposed and is prone to thermal deformation. If the metal profile is thermally deformed, a flame hole may be formed in the indoor/outdoor direction, compromising fire resistance.

In view of the above situation, one of the objectives of the present invention is to provide a fixture that can prevent the resin cover from falling off due to thermal deformation.

The fitting of the present invention is a fitting comprising a frame body made up of left and right vertical frames, an upper frame, and a lower frame assembled all around, and a shoji screen arranged on the frame body in a state in which it slides in the extension direction of the lower frame, and the vertical frame or the upper frame is characterized by having a metal shaped member having a visible surface on the inner circumference side, a resin cover covering the visible surface, a first metal member attached to the metal shaped member, a second metal member located on the opposite side of the first metal member from the metal shaped member and sandwiching the resin cover between the first metal member, and a fastener made of a metal material that penetrates the resin cover and fastens the first metal member to the second metal member.

According to the present invention, the first metal member, the second metal member, and the fasteners are fixed to the metal profile and made of metal materials, so they do not deform or change position even in a high-temperature environment such as during a fire. Therefore, even if the resin cover is deformed by heat in a high-temperature environment, the first metal member and the second metal member can maintain the state in which the resin cover is sandwiched between them, preventing the resin cover from falling off. Therefore, in a high-temperature environment, the resin cover can prevent the metal profile from being directly exposed to heat and deforming, and ultimately prevent the formation of flame penetration holes in the metal profile in the indoor and outdoor directions due to the thermal deformation, which would impair fire resistance.

FIG. 1 is a diagram showing a fitting according to an embodiment of the present invention as viewed from the inside of a room. FIG. 2 is a vertical cross-sectional view of the fixture shown in FIG. 1 . FIG. 2 is a cross-sectional view of the fixture shown in FIG. 1 . FIG. 2 is an enlarged vertical cross-sectional view of the upper part of the fitting shown in FIG. 1 , excluding the shoji screen. 5 is an enlarged vertical cross-sectional view of the upper part of the fitting shown in FIG. 1 , excluding the shoji screen, taken at a position different from that of FIG. 4 . FIG. 2 is a side view of a first metal member included in the fitting shown in FIG. 1 . 6 is a side view of the first metal member included in the fitting shown in FIG. 1, viewed in a direction different from that of FIG. 5. 2 is a plan view of a first metal member included in the fixture shown in FIG. 1 . FIG. 2 is a plan view of the second metal member included in the fitting shown in FIG. 1 , showing the state after installation. FIG. 2 is a plan view of a second metal member included in the fitting shown in FIG. 1 , showing the state before installation. This is a plan view of the upper frame included in the building fixture shown in Figure 1.

Below, a preferred embodiment of the fittings according to the present invention will be described in detail with reference to the attached drawings. For convenience, the terms "prospect direction" and "finding direction" may be used below. The "prospect direction" is the direction along the depth of the fittings, and may also be referred to as the indoor/outdoor direction. A surface along the prospective direction may be referred to as a "prospect surface." For members that extend along the horizontal direction, such as the upper and lower frames, the prospective direction is the direction along the top and bottom perpendicular to the prospective direction. For members that extend along the vertical direction, such as the vertical frames, the prospective direction is the direction along the horizontal direction perpendicular to the prospective direction. Furthermore, a surface along the prospective direction may be referred to as a "prospect surface."

Figures 1 to 3 show a fitting that is an embodiment of the present invention. The fitting shown here is called a sliding window, and is equipped with a frame 10, an outer screen 20A arranged on the outside of the frame 10, and an inner screen 20B arranged on the inside of the frame 10. The frame 10 is configured into a rectangular frame shape by assembling left and right vertical frames 11, 12, an upper frame 13, and a lower frame 14 all around.

The outer screen 20A is configured with a rectangular double-glazed glass 21A and vertical frames 22A, upper frames 23A, lower frames 24A, and vertical frames 25A arranged around the four sides of the double-glazed glass 21A. Similarly, the inner screen 20B is configured with a rectangular double-glazed glass 21B and vertical frames 22B, upper frames 23B, lower frames 24B, and vertical frames 25B arranged around the four sides of the double-glazed glass 21B. In this embodiment, the outer screen 20A and the inner screen 20B are arranged to be movable along the longitudinal direction of the upper frame 13 and the lower frame 14 relative to the frame body 10, and when the outer screen 20A is arranged on the left side of the frame body 10 and the inner screen 20B is arranged on the right side when viewed from the inside of the room, the opening of the frame body 10 can be closed. When the opening of the frame body 10 is closed, the vertical frame 25A located on the right side of the outer screen 20A and the vertical frame 25B located on the left side of the inner screen 20B are aligned in the front direction when viewed from the inside of the room. On the other hand, when the opening of the frame body 10 is open, the outer screen 20A and the inner screen 20B are at least partially overlapping in the front direction. Hereinafter, the vertical frames 25A and 25B are referred to as the aligned frame portions 25A and 25B.

The vertical frames 22A, 22B, upper frames 23A, 23B, lower frames 24A, 24B, and joint frames 25A, 25B that make up the shoji screens 20A, 20B are all extruded shapes molded from resin, and are configured to have a cross-sectional shape that is approximately uniform along the entire length along the longitudinal direction. In this embodiment, the vertical frames 22A, 22B, upper frames 23A, 23B, and lower frames 24A, 24B are particularly configured with the same cross-sectional shape to make up the shoji screens 20A, 20B. The joint frames 25A, 25B are configured with different cross-sectional shapes.

In contrast, the vertical frames 11, 12, upper frame 13, and lower frame 14 that make up the frame body 10 are composite types that are made up of metal shapes made of extruded shapes formed from metals such as aluminum alloys, and resin shapes made of extruded shapes formed from resin. The metal shapes and resin shapes are also configured to have a cross-sectional shape that is approximately uniform over the entire length along the longitudinal direction.

As shown in Figures 2 and 3, each of the components constituting the vertical frames 11 and 12, the upper frame 13, and the lower frame 14 is attached to the building frame or a frame fixed to the frame via mounting screws 400.

Below, we will explain the structure of the vertical frames 11, 12, upper frame 13, and lower frame 14 that make up the frame and frame body 10 of the shoji screens 20A, 20B, as well as the characteristics of the present invention. For convenience, the vertical frame located on the left side as viewed from inside the room will be referred to as the left vertical frame 11, and the vertical frame located on the right side will be referred to as the right vertical frame 12.

(Vertical frame 22A)
As shown in FIG. 3, the vertical frame 22A is formed by integrally forming a frame base 31, a glass clamping piece 32, an inner rail guide 33, and an outer rail guide 34. The frame base 31 is hollow and has a substantially rectangular cross section. A ledge 35 is provided on the edge of the inner periphery of the frame base 31 that faces the outside of the room. The ledge 35 clamps the double-glazed glass 21A between the glass clamping piece 32 and the frame base 31. The glass clamping piece 32 protrudes from the edge of the inner periphery of the frame base 31 that faces the inside of the room to the inner side. The inner rail guide 33 protrudes from the edge of the outer periphery of the frame base 31 that faces the inside of the room to the outer side, and the outer rail guide 34 protrudes from the edge of the outer periphery of the frame base 31 that faces the outside of the room to the outer side. A gap is provided between the inner rail guide 33 and the outer rail guide 34, and a tension material 36 is provided at the portions facing each other.

(Vertical frame 25A)
The vertical frame 25A constituting the joint frame parts 25A, 25B is formed integrally with a frame base 31 and a glass clamping piece 32. The frame base 31 is hollow and has a substantially rectangular cross section. A ridge 35 is provided on the edge on the inner circumference of the frame base 31 that faces the outside of the room. The ridge 35 clamps the insulating glass 21A between itself and the glass clamping piece 32. The glass clamping piece 32 protrudes inward from the edge on the inner circumference of the frame base 31 that faces the inside of the room.

(Left vertical frame 11)
As shown in Fig. 3, the left vertical frame 11 has a metal profile 40 and resin profiles 51 and 52. The resin profile 51 is engaged and integrated with the metal profile 40 via a plurality of claw structures. The resin profile 52 is engaged and integrated with the resin profile 51 via a plurality of claw structures. The metal profile 40 and the resin profiles 51 and 52 each have a cross-sectional shape having a plurality of plate portions extending in different directions, and extend in the up-down direction. The resin profiles 51 and 52 are provided so as to cover a portion of the visible surface on the inner periphery side of the metal profile 40.

(Right vertical frame 12)
As shown in Fig. 3, the right vertical frame 12 has a metal profile 60 and a resin profile 70 that is engaged and integrated with the metal profile 60 via a plurality of claw structures. The metal profile 60 and the resin profile 70 each have a cross-sectional shape with a plurality of plate portions extending in different directions, and extend in the up-down direction. The resin profile 70 is provided so as to cover a portion of the visible surface on the inner periphery side of the metal profile 60.

(Lower frame 14)
As shown in FIG. 2, the metal profile 120 of the lower frame 14 is configured with an inner lower metal molding 120A on the indoor side and an outer lower metal molding 120B on the outdoor side. The inner lower metal molding 120A and the outer lower metal molding 120B are connected to each other by a bridge material (insulation material) 120C formed from an insulating material, and are thermally insulated without contacting each other. The outer lower metal molding 120B has a closed cross-sectional structure and contains a reinforcing member 150 inside. The reinforcing member 150 is provided with a thermal expansion member 303. The inner lower metal molding 120A, the outer lower metal molding 120B, and the bridge material 120C are provided with a thermal expansion member 304 on the inner periphery side. These thermal expansion members 303, 304 are heat-expanding materials such as graphite that foam and expand when heated.

(Upper frame 13)
As shown in Figures 2 and 4, the metal shaped member 80 of the upper frame 13 is configured with an inner upper metal molding 80A on the indoor side and an outer upper metal molding 80B on the outdoor side. The inner upper metal molding 80A and the outer upper metal molding 80B are connected to each other by a bridge member 80C formed from a heat insulating material, and are thermally insulated without contacting each other. The inner upper metal molding 80A is an example of a first shaped member on the indoor side, and the outer upper metal molding 80B is an example of a second shaped member on the outdoor side, and the bridge member 80C is made of a resin material such as urethane. The bridge member 80C is an example of a connecting member.

As shown in FIG. 4, the inner upper metal molding 80A is formed by integrally molding the upper inner projection plate portion 81, the upper inner sight plate portion 82, and the upper inner pocket portion 83. The upper inner projection plate portion 81 is a plate extending along the projection direction. The upper inner sight plate portion 82 constitutes the metal rail portion of the inner upper horizontal rail 13B for guiding the inner screen 20B, and has a metal rail base plate portion 82a extending from the edge portion on the outside of the upper inner projection plate portion 81 toward the inner circumference, an inclined extension portion 82b, and a projection protrusion portion 82e. The extension length of the metal rail base plate portion 82a is set so that when the inner screen 20B is arranged on the frame body 10, it is located on the outer circumference side of the contact position of the tension material 36 provided on the upper frame 23B. The inclined extension 82b is inclined from the inner periphery of the metal rail base plate 82a toward the inner periphery so that it gradually faces the outside of the room. The projected protrusion 82e extends in a projected direction from the surface of the inclined extension 82b that faces the room toward the inside of the room.

In this inner upper metal molding 80A, an engagement receiver 81a is provided on the upper inner projection plate portion 81. An engagement receiver 82g is provided on the upper inner sight plate portion 82. These engagement receivers 81a, 82g are for maintaining the resin profile 90 (described below) attached to the inner periphery of the upper inner projection plate portion 81. In the illustrated example, the engagement receivers 81a, 82g are provided on the edge portion located on the interior side of the upper inner projection plate portion 81, and on the outer periphery of the metal rail base plate portion 82a on the upper inner sight plate portion 82.

The outer upper metal molding 80B is formed by integrally molding the upper outer projection plate portion 84, the upper outer sight plate portion 85, the upper outer pocket portion 86, the upper fixed sight plate portion 87, and the upper outer cover plate portion 88. The upper outer projection plate portion 84 is a plate-like member extending along the projection direction. The upper outer sight plate portion 85 constitutes the metal rail portion of the outer upper horizontal rail 13A for guiding the outer sash 20A, and extends from the edge portion on the outer side of the upper outer projection plate portion 84 toward the inner circumference side, and then extends toward the inner side of the room. The upper outer sight plate portion 85 has an upper fitting portion 85a on the extended edge portion extending toward the indoor side. The upper fitting portion 85a is intended to limit the movement of the upper outer projection plate portion 84 in the projection direction away from each other by fitting into the upper fitting portion 97a of the resin profile 90 described later. In the illustrated example, the upper fitting portion 85a is formed by extending from the extended edge of the upper outer sight plate portion 85 toward the outer periphery, then bending toward the interior side of the room, and then bending again toward the inner periphery. The upper outer pocket portion 86 is a groove-shaped recess for accommodating the bridge material 80C, and is provided so as to open to the interior side at the edge portion that is the interior side of the upper outer sight plate portion 84. The upper fixing sight plate portion 87 is a flat plate that extends from the upper outer pocket portion 86 toward the outer periphery. The upper outer cover plate portion 88 extends from the edge portion that is the exterior side of the upper outer sight plate portion 84 toward the inner periphery.

This outer upper metal molding 80B has multiple upper engagement receiving portions 84a on the inner periphery of the upper outer projection plate portion 84, and multiple thick portions 84b between the upper engagement receiving portions 84a. The upper engagement receiving portions 84a are for maintaining the resin profile 90 (described later) attached to the inner periphery of the upper outer projection plate portion 84. In the illustrated example, the upper engagement receiving portions 84a are provided on the portion of the upper outer pocket portion 86 facing the outside of the room, and on the projection surface of the upper outer projection plate portion 84 that is closer to the inside of the room than the upper outer sight plate portion 85. The thick portions 84b are formed by partially increasing the plate thickness of the upper outer projection plate portion 84, and are each provided along the longitudinal direction of the upper frame 13.

As shown in FIG. 2, the resin profile 90 of the upper frame 13 is composed of an inner upper resin molding 90A on the indoor side and an outer upper resin molding 90B on the outdoor side. Each of the inner upper resin molding 90A and the outer upper resin molding 90B has a length that covers the entire length of the portion of the upper frame 13 located between the left and right vertical frames 11, 12.

As shown in Figure 4, the inner upper resin molding 90A is formed by integrally molding an upper inner cover base 91, an upper inner rail cover portion 92, an upper sight cover portion 93, an upper frame cover portion 94, and an extension cover portion 95. The upper inner cover base 91 is in the form of a flat plate that covers the upper inner projection plate portion 81 of the inner upper metal molding 80A. This upper inner cover base 91 is removably attached to the inner upper metal molding 80A by inserting the edge portion facing the outside of the room between the engagement receiving portion 82g provided on the metal rail base plate portion 82a and the upper inner projection plate portion 81, and inserting the edge portion facing the inside of the room between the engagement receiving portion 81a on the inside of the room and the upper inner projection plate portion 81. On the other hand, the upper inner rail cover part 92, together with the upper inner rail outer cover part 98, the upper inner rail inner periphery cover part 99, and the upper inner rail inner cover part 100 of the outer upper resin molded body 90B, constitutes the resin rail part of the upper horizontal rail 13B corresponding to the inner sash 20B, and extends from the upper inner cover base 91 toward the inner periphery. The inner periphery edge of the upper inner rail cover part 92 is configured to extend in contact with the indoor side of the metal rail base plate part 82a of the upper inner sight plate part 82 when the upper inner cover base 91 is abutted against the upper inner sight plate part 81, so as to cover the indoor side. The outer periphery part of the upper inner rail cover part 92 is provided with an engagement protrusion 92a for engaging with the engagement receiving part 82g. The upper sight cover part 93 extends from the indoor side edge of the upper inner cover base 91 toward the inner periphery. The outer peripheral portion of the upper sight cover portion 93 is provided with an engagement protrusion 93a for engaging with the engagement receiving portion 81a. The upper frame cover portion 94 extends in the forward direction from the edge portion on the inner peripheral side of the upper sight cover portion 93 toward the inside of the room. The extension cover portion 95 extends from the edge portion on the outer peripheral side of the upper frame cover portion 94 toward the inner peripheral side. The extending edge portion of the extension cover portion 95 extends to a position that is more inward than the edge portion on the inner peripheral side of the upper inner rail cover portion 92.

The outer upper resin molding 90B is formed by integrally molding the upper outer cover base 96, the inner cover part 97 for the upper outer rail, the outer cover part 98 for the upper inner rail, the inner periphery cover part 99 for the upper inner rail, and the inner cover part 100 for the upper inner rail. The outer upper resin molding 90B covers a part of the inner periphery side projection surface 84c of the upper outer projection plate part 84. The upper outer cover base 96 is a flat plate that covers a part of the upper outer projection plate part 84 of the outer upper resin molding 90B. The upper outer cover base 96 extends in the indoor/outdoor direction approximately along the projection surface 84c at a position away from the projection surface 84c. The inner cover part 97 for the upper outer rail is for forming the resin rail part of the upper horizontal rail 13A corresponding to the outer sash 20A, and extends from the edge part located on the outside of the room of the upper outer cover base 96 toward the inner periphery, i.e., away from the projection surface 84c. An upper fitting portion 97a is provided on the edge of the inner circumference of the upper outer rail inner cover portion 97. The upper fitting portion 97a extends from the extended edge of the upper outer rail inner cover portion 97 toward the outside of the room, and then bends toward the outer circumference. The upper outer rail inner cover portion 97 is in a state of covering the sighting surface of the upper outer sighting plate portion 85 facing the room, while securing a space between the upper outer sighting plate portion 85 and the upper outer rail inner cover portion 98, the upper inner rail outer cover portion 99, and the upper inner rail inner cover portion 100, together with the upper inner rail cover portion 92 of the inner upper resin molded body 90A, are for forming the resin rail portion of the upper horizontal rail 13B corresponding to the inner sash 20B. The upper inner rail outer cover part 98 extends from an edge part located on the interior side of the upper outer cover base part 96 toward the inner circumference, i.e., away from the visible surface 84c, thereby covering the exterior side of the upper inner sight plate part 82. The upper inner rail inner circumference cover part 99 is provided and extends from the extending edge part of the upper inner rail outer circumference cover part 98 into the room, thereby covering the inner circumference side of the upper inner sight plate part 82. The upper inner rail inner cover part 100 extends from the extending edge part of the upper inner rail inner circumference cover part 99 toward the outer circumference side, thereby covering the sight surface of the part of the upper inner sight plate part 82 located more inward than the metal rail base plate part 82a. The extension length of the inner cover part 100 for the upper inner rail is set so that when the inner screen 20B is arranged on the frame body 10, the tension material 36 provided on the upper frame 23B does not abut against the cover part 92 for the upper inner rail or the joint 101 with the cover part 92 for the upper inner rail. The upper outer cover base 96, the outer cover part 98 for the upper inner rail, and the inner cover part 97 for the upper outer rail all extend in an extension direction E (see Figures 1, 3, etc.). The extension direction E is perpendicular to the paper surface in Figures 2 and 4. The upper outer cover base 96, the outer cover part 98 for the upper inner rail, and the inner cover part 97 for the upper outer rail have a generally U-shaped groove shape that is open to the inner periphery. The upper outer cover base 96 is an example of a bottom wall, the upper inner rail outer cover part 98 is an example of a first side wall, and the upper outer rail inner cover part 97 is an example of a second side wall. The upper inner rail outer cover part 98, the upper inner rail inner periphery cover part 99, and the upper inner rail inner cover part 100 form a recess that opens to the outer periphery, and the upper inner spotting plate part 82 is partially housed inside the recess. The upper inner rail inner cover part 100 is provided with an intermediate engagement part 100a. The intermediate engagement part 100a engages with the outer periphery side of the projection part 82e, thereby restricting the movement of the upper inner rail inner periphery cover part 99 to the inner periphery side relative to the upper inner spotting plate part 82. The outer upper resin molded body 90B is an example of a resin cover.

This outer upper resin molding 90B has a plurality of engaging protrusions 96a and supporting protrusions 96b on the outer peripheral side of the upper outer cover base 96, and mounting protrusions 97b, 98a are provided on the upper outer rail inner cover part 97 and the upper inner rail outer cover part 98, respectively. The engaging protrusions 96a extend from the upper outer cover base 96 toward the outer peripheral side and have an engaging claw portion 96c on the extended edge. The engaging claw portion 96c engages with the upper engaging receiving portion 84a provided on the outer upper metal molding 80B to secure a space between the upper outer cover base 96 and the upper outer projection plate portion 84, and maintains the upper outer cover base 96 covering a portion of the projection surface on the inner peripheral side of the upper outer projection plate portion 84. The support protrusions 96b extend from the upper outer cover base 96 toward the outer periphery between the engaging protrusions 96a. The dimensions of the support protrusions 96b are set so that when the engaging claws 96c of the engaging protrusions 96a are engaged with the upper engaging receivers 84a, the extended edge is positioned close to the upper outer projection plate portion 84 between the thick portions 84b provided on the upper outer projection plate portion 84. The mounting protrusions 97b, 98a protrude in directions approaching each other from the interior side portion of the upper outer rail inner cover portion 97 and the exterior side portion of the upper inner rail outer cover portion 98. These mounting protrusions 97b, 98a engage with the upper wind stopper 110A (see Figures 2 and 11) when it is attached between the upper outer rail inner cover part 97 and the upper inner rail outer cover part 98, preventing the upper wind stopper 110A from falling off. The upper wind stopper 110A is molded from an elastic resin material, and as shown in Figure 11, is disposed on the inner peripheral surface of the upper frame 13 in the area corresponding to the joint frame parts 25A, 25B, thereby restricting the flow of air between the inside and outside of the room.

(Support structure of outer upper resin molded body 90B)
In the frame 10 having the above-mentioned configuration, when exposed to a high temperature environment such as during a fire, the outer upper resin molding body 90B made of resin is deformed by heat, and the engagement with the metal material 80 is released. In this case, there is a risk that the fire resistance of the frame body 10 will be reduced.

In this embodiment, the frame 10 has a support structure for the outer upper resin molding 90B as shown in FIG. 5. The support structure is fixed to the metal profile 80. The support structure also has a first metal member 210, a second metal member 220, and fasteners 230, 240, all made of metal materials. Therefore, the support structure does not deform or change position even in a high-temperature environment where the resin material deforms. Therefore, by supporting the outer upper resin molding 90B via the support structure, it is possible to prevent the outer upper resin molding 90B from falling off. The first metal member 210, the second metal member 220, and the fasteners 230, 240 are made of metal materials such as iron-based materials and aluminum-based materials.

Below, specific examples of the first metal member 210, the second metal member 220, and the fasteners 230, 240 will be described in detail with reference to Figures 5 to 11. Note that Figures 6 to 8 show the orientation of the first metal member 210 when it is assembled into the frame body 10.

As shown in FIG. 5, the first metal member 210 is attached to the upper inner sight plate 82, which is part of the inner upper metal molding 80A, by a fastener 230. The first metal member 210 is located between the metal profile 80 and the bridge material 80C and the outer upper resin molding 90B. The second metal member 220 is located on the opposite side of the metal profile 80 with respect to the first metal member 210, and sandwiches the upper outer cover base 96, which is part of the outer upper resin molding 90B, between the first metal member 210 and the second metal member 220. The fastener 240 penetrates the upper outer cover base 96 and connects the first metal member 210 and the second metal member 220.

The first metal member 210 has an extension portion 211, a first fixing portion 212, a second fixing portion 213, and a hook portion 214.

As shown in Figures 5 and 6, the extension portion 211 extends generally along the indoor/outdoor direction, and as shown in Figure 8, it extends generally along the extension direction E of the upper frame 13, and has a generally rectangular and plate-like shape. Note that, as shown in Figures 5 and 6, in this example, the outdoor end of the extension portion 211 is positioned slightly upwardly offset from the indoor end, and therefore the extension portion 211 has a curved shape.

As shown in Figures 5 and 6, the first fixing portion 212 protrudes from the indoor end of the extension portion 211 toward the inner circumference while contacting the outdoor side of the metal rail base plate portion 82a. As shown in Figure 7, the first fixing portion 212 extends approximately along the extension direction E of the upper frame 13 and has an approximately rectangular and plate-like shape. The first fixing portion 212 has connection holes 212a that penetrate through its thickness, i.e., in the indoor/outdoor direction, at multiple locations (two locations in this example) spaced apart in the extension direction E.

As shown in Figures 5 and 6, the fastener 230 penetrates the metal rail base plate portion 82a in the indoor/outdoor direction and is connected to the connection hole 212a, thereby integrating the first fixing portion 212 and the metal rail base plate portion 82a. This attaches the first metal member 210 to the inner upper metal molding 80A. The fastener 230 is, for example, a screw with a head on the indoor side, and the connection hole 212a is, for example, a female threaded hole. In this case, the fastener 230 is screwed from the indoor side using a tool such as a screwdriver.

The connection hole 212a is provided in the upper inner sight plate portion 82, which is a portion of the inner upper metal molding 80A that constitutes the metal profile 80 that is not exposed to the outdoors. In other words, the first metal member 210 is attached to the portion of the metal profile 80 that is not exposed to the outdoors.

As shown in FIG. 8, the hook portion 214 is provided at the exterior end of two regions of the extension portion 211 that are both ends in the extension direction E, and as shown in FIGS. 5 and 6, it protrudes from the extension portion 211 to the outer periphery (upward). As shown in FIG. 5, the hook portion 214 faces the exterior side of the upper outer pocket portion 86 and the upper engagement receiving portion 84a, which are part of the outer upper metal molding 80B. The action and effect of the hook portion 214 will be described later. The hook portion 214 is aligned with the indoor side engagement protrusion 96a (see FIG. 4) in the extension direction E. This configuration is achieved by partially cutting out the engagement protrusion 96a at the location where the first metal member 210 is provided.

As shown in FIG. 8, the second fixing portion 213 is provided at the outdoor end of the region of the extension portion 211 that is approximately the center of the extension direction E, and protrudes toward the outdoor side compared to other parts of the extension portion 211. As shown in FIG. 6, the second fixing portion 213 is provided with a connection hole 213a that penetrates in the thickness direction, i.e., in the vertical direction.

As shown in FIG. 5, the thermal expansion member 302 is provided between the first metal member 210 and the metal profile 80 or the bridge member 80C. This thermal expansion member 302 may be attached to the first metal member 210 via adhesive or double-sided tape, or may be attached to the metal profile 80 or the bridge member 80C. The thermal expansion member 302 is an example of a second thermal expansion member. The thermal expansion member 302 is similar to the thermal expansion members 303 and 304, and is a heat-expanding foaming material, such as graphite, that foams and expands when heated.

The second metal member 220 extends generally along the indoor-outdoor direction as shown in FIG. 5, and also extends generally along the extension direction E of the upper frame 13 as shown in FIG. 9, and has a generally rectangular, plate-like shape.

5, the fastener 240 penetrates the thermal expansion member 301, the second metal member 220, and the upper outer cover base 96 in the find direction (vertical direction) and is coupled to the coupling hole 213a to integrate the second metal member 220 and the second fixing part 213. In other words, the fastener 240 integrates the first metal member 210 and the second metal member 220 with the outer upper resin molded body 90B sandwiched between them. The fastener 240 is, for example, a screw having a head 240a on the lower side, and the coupling hole 213a is, for example, a female screw hole. In this case, the fastener 240 is screwed from the lower side using a tool such as a screwdriver, and the thermal expansion member 301 is sandwiched between the head 240a and the second metal member 220.

The thermal expansion member 301 is attached to the inner visible surface of the second metal member 220 via adhesive, double-sided tape, or the like. The thermal expansion member 301 is similar to the thermal expansion members 303 and 304, and is a heat-expanding foaming material, such as graphite, that foams and expands when heated. The thermal expansion member 301 is an example of a first thermal expansion member.

As shown in FIG. 5, the second metal member 220 is in contact with the upper outer cover base 96. Also, as shown in FIGS. 5 and 9, the second metal member 220 is connected to the first metal member 210 by a fastener 240, for example, configured as a screw. The second metal member 220 has a plate-shaped portion 221, a protrusion 222, and a protrusion 223. The plate-shaped portion 221 extends approximately along the upper outer cover base 96 and is formed in a rectangular shape. The protrusion 222 protrudes from the indoor end 221a of the plate-shaped portion 221 to the indoor side. Also, the protrusion 223 protrudes from the outdoor end 221b of the plate-shaped portion 221 to the outdoor side. In the mounting state of the second metal member 220, as shown in FIG. 9, the protrusion 222 contacts or bites into the upper inner rail outer cover portion 98, and the protrusion 223 contacts or bites into the upper outer rail inner cover portion 97. As a result, the second metal member 220 is in a state of being tensioned between the outer cover part 98 for the upper inner rail and the inner cover part 97 for the upper outer rail. That is, the protrusions 222 and 223 are tensioned between the outer cover part 98 for the upper inner rail and the inner cover part 97 for the upper outer rail on opposite sides of the fastener 240. The protrusion 222 is an example of a first protrusion, and the protrusion 223 is an example of a second protrusion.

In the mounting state shown in FIG. 9, the end 221a on the indoor side of the plate-shaped portion 221 extends approximately along the extension direction E and faces the upper inner rail outer cover part 98, which also extends approximately along the extension direction E, with a gap between them. The end 221b of the plate-shaped portion 221 extends approximately along the extension direction E and faces the upper outer rail inner cover part 97, which also extends approximately along the extension direction E, with a gap between them. As a result, in the mounting state, the plate-shaped portion 221 extends in the indoor/outdoor direction between a position close to the upper inner rail outer cover part 98 and a position close to the upper outer rail inner cover part 97. The thermal expansion member 301 is provided on the surface of the plate-shaped portion 221 opposite the upper outer cover base 96, i.e., on the portion facing the shoji screens 20A and 20B.

9 and 10, in the pre-installation state shown in FIG. 10, the second metal member 220 is arranged in a position (posture) rotated a predetermined angle in the counterclockwise direction at the rotation center of the fastener 240 from the position in the installation state shown in FIG. 9. Here, the counterclockwise direction is the opposite direction to the screw-turning direction of the fastener 240. Also, the second metal member 220 is configured so that it can be accommodated between the upper inner rail outer cover part 98 and the upper outer rail inner cover part 97 in that position (posture). In this configuration, the fastener 240 as a screw is rotated in the clockwise direction using a screwdriver or the like from the pre-installation state of FIG. 10. As a result, the second metal member 220 rotates in the clockwise direction by the above-mentioned predetermined angle due to friction between the head 240a of the fastener 240 and the second metal member 220, the fastener 240 is screwed, and the installation state shown in FIG. 9 is obtained. In addition, the protrusions 222 and 223 are provided at a position in contact with the diagonal line DL of the plate-shaped part 221, which is offset in the counterclockwise direction, with respect to the imaginary line M that passes through the rotation center of the fastener 240 and extends in the indoor/outdoor direction in the attached state. In this case, the radius (moment arm) of the protrusions 222 and 223 with respect to the rotation center of the fastener 240 can be set larger. Therefore, the rotation stop torque of the second metal member 220 around the rotation center of the fastener 240 due to friction (engagement) with the upper inner rail outer cover part 98 or the upper outer rail inner cover part 97 can be set larger. In addition, the amount of bite of the protrusions 222 and 223 into the upper inner rail outer cover part 98 or the upper outer rail inner cover part 97 to obtain the rotation stop torque can be made smaller. The above-mentioned predetermined angle, i.e., the rotation angle of the second metal member 220, is set to, for example, an acute angle less than a right angle.

As shown in FIG. 11, the first metal member 210, the second metal member 220, and the thermal expansion member 301 are arranged so as to overlap upwardly with the joining frame portions 25A and 25B. The upper wind stop member 110A is arranged so as to be adjacent to the first metal member 210, the second metal member 220, and the thermal expansion member 301 in the extension direction E and to overlap upwardly with the joining frame portions 25A and 25B. The upper wind stop member 110A, the first metal member 210, the second metal member 220, and the thermal expansion member 301 may be arranged in the reverse order to that shown in FIG. 11 in the extension direction E.

As described above, in this embodiment, the upper frame 13 has a metal shaped material 80 and an outer upper resin molded body 90B that covers the inner peripheral side of the metal shaped material 80. The upper frame 13 also has a first metal member 210, a second metal member 220, and a fastener 240. The first metal member 210 is attached to the metal shaped material 80. The second metal member 220 is located on the opposite side of the first metal member 210 to the metal shaped material, and sandwiches the outer upper resin molded body 90B between the first metal member 210 and the fastener 240. The fastener 240 is made of a metal material, penetrates the second metal member 220 and the outer upper resin molded body 90B, and is also made of a metal material. According to this configuration, the first metal member 210 and the second metal member 220 do not deform or change position even in a high temperature environment. Therefore, even if the outer upper resin molding 90B is thermally deformed in a high-temperature environment, the outer upper resin molding 90B remains sandwiched between the first metal member 210 and the second metal member 220. Therefore, in a high-temperature environment, the outer upper resin molding 90B can prevent the metal profile 80 from being directly exposed to heat and deforming, and can also prevent the formation of a flame penetration hole in the metal profile 80 in the indoor/outdoor direction due to the thermal deformation, thereby reducing the fire resistance.

In addition, in this embodiment, the upper frame 13 has a bridge material 80C. The bridge material 80C is located between the inner upper metal forming body 80A and the outer upper metal forming body 80B, is made of a resin material, and connects the inner upper metal forming body 80A and the outer upper metal forming body 80B. The first metal member 210 is attached to the outer upper metal forming body 80B, which is one of the inner upper metal forming body 80A and the outer upper metal forming body 80B. In this configuration, the first metal member 210 is attached to the inner upper metal forming body 80A, which is one of the metal shapes 80. Therefore, even if the bridge material 80C is burned, the first metal member 210, the second metal member 220, and the fastener 240 will not deform or change position. Therefore, even in a configuration in which the bridge material 80C is provided, the outer upper resin molding 90B remains sandwiched between the first metal member 210 and the second metal member 220, which in turn prevents the fire resistance from being impaired.

In addition, in this embodiment, the thermal expansion member 301 is attached to the second metal member 220 at a portion facing the outer screen 20A and the inner screen 20B. In this configuration, the thermal expansion member 301 is attached to the second metal member 220, whose position does not change even in a high-temperature environment. With this configuration, in a high-temperature environment, the thermal expansion member 301 can be expanded more reliably in the gap between the upper frame 13 and the outer screen 20A and the inner screen 20B, thereby sealing the gap. Therefore, the thermal expansion member 301 can prevent the propagation of flames through the gap.

In addition, in this embodiment, the second metal member 220 has a plate-shaped portion 221 that extends approximately along the upper outer cover base 96. The indoor end 221a of the plate-shaped portion 221 extends approximately along the upper inner rail outer cover portion 98 with a gap between them. The outdoor end 221b of the plate-shaped portion 221 extends approximately along the upper outer rail inner cover portion 97 with a gap between them. With this configuration, the plate-shaped portion 221 can be configured wider between the upper inner rail outer cover portion 98 and the upper outer rail inner cover portion 97. Therefore, a larger thermal expansion member 301 can be attached to the plate-shaped portion 221, and the fire resistance of the thermal expansion member 301 can be further improved.

In addition, in this embodiment, the first metal member 210, the second metal member 220, and the thermally expandable member 301 are located at least above the mating frame parts 25A, 25B where the indoor side shoji 20B and the outdoor side shoji 20A overlap in the indoor/outdoor direction when the frame body 10 is in a closed state. With this configuration, in a high-temperature environment, the gap between the mating frame parts 25A, 25B and the upper frame 13 can be blocked by the expanded thermally expandable member 301. Therefore, the thermally expandable member 301 can prevent the propagation of flames through the gap.

In addition, in this embodiment, the upper frame 13 includes a thermal expansion member 302 provided between the first metal member 210 and the metal shaped member 80 or the bridge member 80C. With this configuration, even if the bridge member 80C is burned, the thermal expansion member 302 can expand in the gap between the first metal member 210 and the metal shaped member 80 to close the gap. Therefore, the thermal expansion member 301 can prevent the propagation of flames through the gap.

In addition, in this embodiment, the first metal member 210 is attached to the outer upper metal forming body 80B, which is one of the inner upper metal forming body 80A and the outer upper metal forming body 80B. The first metal member 210 has a hook portion 214. The hook portion 214 hooks the inner upper metal forming body 80A so as to prevent the inner upper metal forming body 80A and the outer upper metal forming body 80B from moving apart in the indoor/outdoor direction. With this configuration, even if the bridge material 80C is burned, the hook portion 214 can prevent the inner upper metal forming body 80A and the outer upper metal forming body 80B from moving apart.

In addition, in this embodiment, the second metal member 220 is joined to the first metal member 210 by one fastener 240 in a state in which it is stretched between the outer cover part 98 for the upper inner rail and the inner cover part 97 for the upper outer rail. With this configuration, the second metal member 220 can be fixed in a posture in which it is stretched between the outer cover part 98 for the upper inner rail and the inner cover part 97 for the upper outer rail. Therefore, with a relatively simple configuration, it is possible to suppress variation in the mounting posture of the second metal member 220. Furthermore, when a thermally expandable member 301 is attached to the second metal member 220, it is possible to suppress variation in the thermal expansion state (posture) of the thermally expandable member 301.

In addition, in this embodiment, the second metal member 220 has a protrusion 222 that protrudes from the plate-shaped portion 221 toward the outer cover portion 98 for the upper inner rail, and a protrusion 223 that protrudes from the plate-shaped portion 221 toward the inner cover portion 97 for the upper outer rail. The protrusions 222 and 223 are on opposite sides of the fastener 240 and are braced between the outer cover portion 98 for the upper inner rail and the inner cover portion 97 for the upper outer rail. With this configuration, a structure in which the second metal member 220 braces between the outer cover portion 98 for the upper inner rail and the inner cover portion 97 for the upper outer rail can be realized with a relatively simple configuration.

In addition, in this embodiment, the first metal member 210 is attached to a portion of the metal profile 80 that is not exposed to the outdoors. This configuration makes it possible to suppress water leakage from the portion of the metal profile 80 where the first metal member 210 is attached.

In the above embodiment, a sliding window in which both the outer and inner screens 20A and 20B slide relative to the frame 10 is illustrated, but it is also possible to configure it as a single-sliding window in which only one of the screens slides. In addition, the screens 20A and 20B are illustrated as having frames 22A, 22B, 23A, 23B, 24A, 24B, 25A, and 25B molded from resin. However, the screen is not limited to this configuration, and may have a frame in which the part on the outside of the room is molded from a metal such as an aluminum alloy, and the part on the inside of the room is molded from resin. In addition, the metal shaped material 80 of the upper frame 13 is illustrated as having an inner upper metal molded body 80A and an outer upper metal molded body 80B connected by a bridge material 80C. In addition, the metal shaped material 120 of the lower frame 14 is illustrated as having an inner lower metal molded body 120A and an outer lower metal molded body 120B connected by a bridge material 120C. However, the metal profile is not limited to this configuration, and may not have a bridge material, and the indoor and outdoor sections may be molded as a single unit.

In addition, in the above-described embodiment, a configuration is exemplified in which the support structure for the outer upper resin molding 90B (resin cover) made of the first metal member 210, the second metal member 220, and the fasteners 230, 240 is applied to the upper frame 13. However, this is not limited to this, and the support structure for the resin cover can also be applied to the left vertical frame 11 and the right vertical frame 12. In addition, the support structure for the resin cover may be provided locally at only one location on the upper frame 13, the left vertical frame 11, or the right vertical frame 12, or may be provided at multiple locations spaced apart from each other in the extension direction of the frames. In addition, the support structure for the resin cover may be a structure that extends along each frame over approximately the entire length of each frame.

In addition, in the above-described embodiment, the first metal member 210 is attached to the inner upper metal molding 80A (the first shaped member on the indoor side), but this is not limited thereto, and the first metal member may be attached to the second shaped member on the outdoor side. In this case, the second shaped member on the outdoor side may have a hook portion that prevents the first shaped member on the indoor side from moving away from the indoor side. In addition, the first metal member 210 is attached to the upper inner sight plate portion 82 of the inner upper metal molding 80A, but this is not limited thereto, and the first metal member may be attached to other positions on the first shaped member and the second shaped member that are not exposed to the outdoors.

In addition, in the above-described embodiment, the indoor end 221a and the outdoor end 221b of the plate-shaped portion 221 of the second metal member 220 face the upper inner rail outer cover portion 98 (first side wall) or the upper outer rail inner cover portion 97 (second side wall) with a gap between them. However, this is not limited to this, and the indoor and outdoor ends may be in contact with the first side wall or the second side wall. Also, the protrusion 222 (first protrusion) and the protrusion 223 (second protrusion) do not have to be in contact with the diagonal line DL of the plate-shaped portion 221.

In the above-described embodiment, only one thermally expandable member 302 (second thermally expandable member) is provided so as to face the inner upper metal molding 80A (first shaped member), the outer upper metal molding 80B (second shaped member), and the bridge member 80C (connecting member). However, this is not limited to this, and the second thermally expandable member may be provided in multiple parts, or may be provided so as to face at least one of the first shaped member, the second shaped member, and the connecting member. The second thermally expandable member can be installed in various positions. Furthermore, the second thermally expandable member may be attached to the first metal member, or to the metal shaped member or the connecting member.

In the building fixture of the present invention, the metal profile has a first profile on the inside of the room and a second profile on the outside of the room, the vertical frame or the upper frame is located between the first profile and the second profile and has a connecting member made of a resin material that connects the first profile and the second profile, and the first metal member is attached to one of the first profile and the second profile.
According to the present invention, the first metal member is attached to the metal profile. Therefore, even if the connecting member is burned in a high-temperature environment, the first metal member, the second metal member, and the fastener are not deformed and do not change position. Therefore, even if the frame body has the connecting member, the first profile and the second profile maintain the state in which the resin cover is sandwiched therebetween in a high-temperature environment, preventing the resin cover from falling off and thus preventing the fireproofing from being impaired.

The fixture includes a first thermally expandable member attached to a portion of the second metal member facing the shoji screen.
According to the present invention, the first thermal expansion member is attached to the second metal member, which does not deform or change position even in a high-temperature environment. Therefore, in a high-temperature environment, the first thermal expansion member can be expanded more reliably in the gap between the frame and the screen to close the gap. Therefore, the first thermal expansion member can prevent the propagation of flames through the gap.

In the above-mentioned building fixture, the resin cover has a bottom wall extending along the inner circumferential surface of the metal profile and extending in the extension direction of the metal profile, a first side wall protruding inward from the bottom wall and extending in the extension direction of the metal profile, and a second side wall protruding inward from the bottom wall on the outdoor side of the first side wall and extending in the extension direction of the metal profile, and the second metal member has a plate-shaped portion extending along the bottom wall, with the indoor side end of the plate-shaped portion extending along the first side wall with a gap or in contact with the first side wall, and the outdoor side end of the plate-shaped portion extending along the second side wall with a gap or in contact with the second side wall.
According to the present invention, the plate-shaped portion between the first side wall and the second side wall can be made wider, and thus a larger first thermally expandable member can be attached to the plate-shaped portion, thereby further improving the fire resistance of the first thermally expandable member.

In the above-mentioned fixture, the shoji screen has an indoor shoji screen and an outdoor shoji screen that overlap each other when the frame is open, the first metal member is attached to the metal profile that constitutes the upper frame, and the first metal member, the second metal member and the first thermally expandable member are positioned at least above the joining frame portion where the indoor shoji screen and the outdoor shoji screen overlap in the indoor-outdoor direction when the frame is closed.
According to the present invention, in a high-temperature environment, the gap between the joint frame portion and the frame body can be blocked by the expanded first thermally expandable member. Therefore, the first thermally expandable member can prevent the propagation of flames through the gap.

The fixture includes a second thermally expandable member provided between the first metal member and the metal profile or the connecting member.
According to the present invention, even if the connecting member is burned down, the second thermally expandable member can expand in the gap between the first metal member and the metal profile to close the gap, thereby preventing the propagation of flames through the gap.

In the building fixture, the first metal member has a hook portion that hooks the other of the first and second profiles so as to prevent the first and second profiles from moving away from each other in the indoor/outdoor direction.
According to the present invention, even if the connecting member is burned down due to a fire, the hook portion can prevent the first and second extrusions from separating from each other.

In the building fixture, the resin cover has a bottom wall extending along the inner circumferential surface of the metal profile and extending in the extension direction of the metal profile, a first side wall protruding inward from the bottom wall and extending in the extension direction of the metal profile, and a second side wall protruding inward from the bottom wall on the outside of the first side wall and extending in the extension direction of the metal profile, and the second metal member is joined to the first metal member by one of the fasteners in a state of being braced between the first side wall and the second side wall.
According to the present invention, since the second metal member can be fixed in a tensioned position between the first side wall and the second side wall, the variation in the mounting position of the second metal member can be suppressed with a relatively simple configuration. Furthermore, when the first thermally expandable member is attached to the second metal member, the variation in the thermal expansion state (position) of the first thermally expandable member, and therefore the variation in fire resistance, can be suppressed.

In the above-mentioned building fixture, the second metal member has a plate-shaped portion extending along the bottom wall, a first protrusion protruding from the plate-shaped portion toward the first side wall, and a second protrusion protruding from the plate-shaped portion toward the second side wall, the first protrusion and the second protrusion being braced between the first side wall and the second side wall on opposite sides of the fastener.
According to the present invention, a structure in which the second metal member braces between the first side wall and the second side wall can be realized with a relatively simple configuration.

In the above-mentioned building fixture, the first metal member is attached to a portion of the metal profile that is not exposed to the outdoors.
According to the present invention, water leakage can be suppressed at the portion of the metal profile where the first metal member is attached.

10 Frame body, 11 Left vertical frame (vertical frame), 12 Right vertical frame (vertical frame), 13 Upper frame, 14 Lower frame, 20A Outer screen (screen), 20B Inner screen (screen), 25A, 25B Joint frame portion, 40, 60, 80, 120 Metal shaped material, 80A Inner upper metal molded body (first shaped material), 80B Outer upper metal molded body (second shaped material), 80C Bridge material (connecting member), 84c Projection surface, 90B Outer upper resin molded body, 96 Upper outer cover base (bottom wall), 97 Inner cover portion for upper outer rail (second side wall), 98 Outer cover portion for upper inner rail (first side wall), 210 First metal member, 214 Hook portion 220 Second metal member, 221 Plate-shaped portion, 221a End portion, 221b End portion, 222 Protrusion (first protrusion), 223 Protrusion (second protrusion), 240 Connecting device, 301 Thermal expansion member (first thermal expansion member), 302 Thermal expansion member (second thermal expansion member)

Claims (10)

A fitting comprising a frame body formed of left and right vertical frames, an upper frame, and a lower frame assembled on all four sides, and a shoji screen arranged on the frame body in a state in which it slides in the extension direction of the lower frame,
The vertical frame or the upper frame is
A metal profile having an inner peripheral surface;
A resin cover covering the visible surface;
A first metal member attached to the metal profile;
a second metal member located on the opposite side of the first metal member from the metal shape material and sandwiching the resin cover between the first metal member and the second metal member;
a fastener that penetrates the resin cover, is made of a metal material, and fastens the first metal member and the second metal member;
Building materials having such features. The metal profile has a first profile on the indoor side and a second profile on the outdoor side,
The vertical frame or the upper frame has a connecting member that is located between the first frame and the second frame and is made of a resin material and connects the first frame and the second frame,
The fixture of claim 1 , wherein the first metal member is attached to one of the first profile and the second profile. The fitting according to claim 2, comprising a first thermal expansion member attached to a portion of the second metal member facing the shoji screen. The resin cover has a bottom wall extending along the inner peripheral surface of the metal profile and extending in the extension direction of the metal profile, a first side wall protruding from the bottom wall to the inner peripheral side and extending in the extension direction of the metal profile, and a second side wall protruding from the bottom wall to the inner peripheral side on the outdoor side of the first side wall and extending in the extension direction of the metal profile,
the second metal member has a plate-like portion extending along the bottom wall,
The fixture described in claim 3, wherein the indoor end of the plate-shaped portion extends along the first side wall with a gap or in contact with the first side wall, and the outdoor end of the plate-shaped portion extends along the second side wall with a gap or in contact with the second side wall. The shoji screen has an indoor shoji screen and an outdoor shoji screen that overlap each other when the frame body is open,
The first metal member is attached to the metal shape that constitutes the upper frame,
The building fixture described in claim 3, wherein the first metal member, the second metal member, and the first thermally expandable member are positioned at least above the joining frame portion where the indoor side screen and the outdoor side screen overlap in the indoor/outdoor direction when the frame body is closed. The fixture according to claim 2, further comprising a second thermally expandable member provided between the first metal member and the metal profile or the connecting member. The fitting according to claim 2, wherein the first metal member has a hook portion for hooking the other of the first and second shaped members so as to prevent the first and second shaped members from moving apart in the indoor/outdoor direction. The resin cover has a bottom wall extending along the inner peripheral surface of the metal profile and extending in the extension direction of the metal profile, a first side wall protruding from the bottom wall to the inner peripheral side and extending in the extension direction of the metal profile, and a second side wall protruding from the bottom wall to the inner peripheral side on the outdoor side of the first side wall and extending in the extension direction of the metal profile,
A fixture as described in any one of claims 1 to 7, wherein the second metal member is connected to the first metal member by one of the fasteners in a state of being tensioned between the first side wall and the second side wall. the second metal member has a plate-shaped portion extending along the bottom wall, a first protrusion protruding from the plate-shaped portion toward the first side wall, and a second protrusion protruding from the plate-shaped portion toward the second side wall,
The fitting of claim 8 , wherein the first protrusion and the second protrusion are braced between the first side wall and the second side wall on opposite sides of the fastener. The fitting according to claim 1 or 2, wherein the first metal member is attached to a portion of the metal profile that is not exposed to the outdoors.

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