JP2023083599A - Device for use with opening - Google Patents

Abstract

To provide a fitting whose fire protection performance can be increase when placed in a building opening, regardless of whether the fitting being for new construction or renovation.SOLUTION: A double fitting includes an indoor side fitting arranged on the inner circumference of a building opening and an outdoor side fitting arranged on the outdoor side of the indoor side fitting in the building opening, in which the outdoor side fitting secures the water-tightness performance, airtightness performance, and wind pressure resistance performance in the building opening, and the indoor side fitting secures the fire prevention performance in the building opening.SELECTED DRAWING: Figure 1

Description

The present invention relates to fittings that are arranged in openings of buildings and the like and exhibit fire prevention functions in the openings.

2. Description of the Related Art Conventionally, fittings arranged at an opening of a building have watertightness, airtightness, and wind pressure resistance.

Japanese Patent No. 3284709

2. Description of the Related Art In recent years, building fittings are required to have fireproof performance, and there are cases where fittings installed at building openings are required to be refurbished to provide fireproof performance.
However, in order to refurbish the fittings installed at the opening of the building into fittings with fireproof performance, there are cases where large-scale repair work such as removing the frame body is required, and it takes time and effort.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an opening device capable of improving the fireproof performance of fittings by arranging it in a building opening.

The invention according to claim 1 of the present application comprises indoor fittings arranged on the inner periphery of a building opening, and outdoor fittings arranged on the outdoor side of the indoor fittings in the building opening, wherein the outdoor fittings are , while ensuring watertightness, airtightness and wind pressure resistance performance at the opening of the building, the fittings on the indoor side are characterized by ensuring fireproof performance at the opening of the building.
The invention according to claim 2 of the present application includes a frame that can be attached to the indoor side of a building opening where fittings with watertightness, airtightness, and wind pressure resistance are arranged, and secures fire prevention performance at the building opening. It is characterized by

According to the present invention, fireproof performance can be imparted to the building opening by arranging the fireproof fittings as indoor fittings.

It is a longitudinal section of the double fittings concerning the embodiment of the present invention. It is a cross-sectional view of the double fittings which concern on embodiment of this invention. It is a longitudinal cross-sectional view of the outdoor side fittings which comprise the double fittings which concern on embodiment of this invention. It is a cross-sectional view of the outdoor side fittings which comprise the double fittings which concern on embodiment of this invention. It is a longitudinal cross-sectional view of the indoor fittings which comprise the double fittings which concern on embodiment of this invention. It is a cross-sectional view of the indoor fittings which comprise the double fittings which concern on embodiment of this invention. It is a longitudinal cross-sectional view of the indoor fittings which comprise the double fittings which concern on other embodiment of this invention. It is a cross-sectional view of the indoor fittings which comprise the double fittings which concern on other embodiment of this invention.

(Overall configuration of double fittings)
Regarding the fireproof fittings of the present invention, by arranging fireproof sashes with fireproofing functions against building openings where composite sashes with airtightness and heat insulation properties are arranged, the repaired fireproof fittings are refurbished into fireproof fittings as a whole. will be used to explain.
As shown in FIGS. 1 and 2, the repaired fireproof fittings according to the embodiment of the present invention include an outdoor fitting A having an airtight function and a heat insulation function, which is placed on the outdoor side of the building opening, and a room of the outdoor fitting A. It is equipped with indoor fittings B having a fire prevention function arranged inside.

-Outdoor Fittings-
The outdoor fitting A is arranged semi-externally on the outdoor side of the building opening, and the inner shoji 2 and the outer shoji 3 slide against the frame 1 fixed to the inner circumference of the building opening. It is arranged freely and a screen door shoji 4 is arranged.
The frame body 1 that constitutes the outdoor fitting A is configured by connecting the indoor-side and outdoor-side frame members made of a metal material such as an aluminum alloy with a heat-insulating bridge. The frames of the outer shoji 2 and 3 are configured by arranging a resin frame on the indoor side of the metal frame, thereby providing high heat insulation performance.
In addition, an airtight line is formed by an airtight material between the frame 1 and the frames of the inner and outer shojis 2 and 3, and a windbreak member is provided to provide the necessary watertightness, airtightness, and airtightness as fittings. It has wind resistance.
The structure of the outdoor fitting A will be specifically described below.

(Frame body of outdoor fittings)
The frame body 1 of the outdoor fitting A is formed by framing an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 on four sides.
As shown in FIG. 3, the upper frame 11 is formed by connecting an outdoor upper frame 111 made of an extruded shape such as an aluminum alloy and an indoor upper frame 112 with a bridge member 113 made of a resin material or the like having heat insulating properties. On the lower surface of the outdoor upper frame 111, an outdoor upper rail 111a that guides the upper end of the outdoor shoji 3 and a screen door upper rail 111b that guides the upper end of the screen door shoji 4 are provided downward. A room-side upper rail 112a for guiding the upper end of the inner shoji 2 is provided downwardly.

Between the outdoor-side upper rail 111a and the indoor-side upper rail 112a of the upper frame 11, a fin-like wind stop member 114a is arranged above the joint frame of the outer shoji 3 and the inner shoji 2. A fin-like wind stop member 114b is arranged between the screen door upper rail 111b of the upper frame 11 and the outdoor upper rail 111a and above the door frame of the outer shoji 3. As shown in FIG.
A resin upper frame 115 is arranged from the indoor side surface of the indoor-side upper rail 112a of the indoor upper frame 112 to the inner peripheral surface of the indoor upper frame 112. A jaw portion 115a is formed to extend to.
As shown in FIG. 1, the resin upper frame 115 is fixed to the opening of the building together with the inner peripheral surface of the indoor upper frame 112 by fixing means b1 such as screws. It is fixed to the building opening by means b2.

As shown in FIG. 3, the lower frame 12 connects an outdoor lower frame 121 and an indoor lower frame 122 having a hollow structure made of an extruded shape such as an aluminum alloy with a bridge member 123 made of a heat-insulating resin material or the like. On the upper surface of the outdoor lower frame 121, an outdoor lower rail 121a for guiding the outdoor shoji 3 and a screen door lower rail 121b for guiding the screen door shoji 4 are provided upward. On the upper surface of 122, an indoor-side lower rail 122a for guiding the inner shoji 2 is provided facing upward.

Between the lower rail 121a on the outdoor side and the lower rail 122a on the indoor side of the lower frame 12, at a portion where the outer shoji 3 is arranged when the inner and outer shoji 2, 3 are closed, from the indoor lower frame 122 to the outdoor A resin cover member 124 is arranged to cover the upper surface of the lower frame 121 .
In addition, a resin lower frame 125 is arranged from the indoor side surface of the indoor-side lower rail 122a of the indoor lower frame 122 to the inner peripheral surface of the indoor lower frame 122, and the inner circumference of the building opening is placed on the indoor side of the resin lower frame 125. A jaw portion 125a is formed that extends to.

The left vertical frame 13 is, as shown in FIG. A peripheral projecting wall 131 a is provided, and a resin left vertical frame 132 is engaged with the inner peripheral surface of the left vertical frame main body 131 on the indoor side.
The resin left vertical frame 132 has a main body portion 132a that covers the indoor-side inner peripheral surface of the left vertical frame main body 131 and a jaw portion 132b that continues to the indoor-side of the main body portion 132a. An airtight portion 132c extends from the door toward the door frame 33 of the outer shoji 3.

As shown in FIG. 4, the right vertical frame 14 has a right vertical frame main body 141 made of an extruded shape such as an aluminum alloy. An inner peripheral protruding wall 141 a is provided, and a resin right vertical frame 142 is arranged on the inner peripheral surface of the right vertical frame body 141 on the inner side of the room from the inner peripheral protruding wall 141 a.
The resin right vertical frame 142 has a main body portion 142a covering the inner peripheral surface of the right vertical frame main body 141 and a jaw portion 142b continuing to the indoor side of the main body portion 142a.

(Outdoor fittings inside, outside shoji)
As shown in FIGS. 3 and 4, the inner shoji 2 of the outdoor fitting A is composed of an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24, which are assembled in four circles. It is formed by attaching a panel body 25 .
As shown in FIG. 3, the upper frame 21 of the inner shoji 2 is a metal upper frame 211 made of an extruded shape such as an aluminum alloy and having a hollow portion, and a resin frame 211 having a hollow portion that is engaged with the interior side of the metal upper frame 211. An outdoor frontage wall 211a formed by extending the outdoor-side inner peripheral surface of the metal upper frame 211 and an indoor-side frontage formed by extending the indoor-side inner peripheral surface of the resin upper frame 212. A panel frontage 21a for holding a panel body 25 such as composite glass is formed by the wall 212a.
The metal upper frame 211 has an opening 211b on its outer circumference that is guided by the indoor upper rail 112a. A contacting airtight material s1 is arranged to form an airtight line between the upper frame 21 and the upper frame 11 of the inner shoji 2. - 特許庁
In addition, a fin portion 212b is provided at the upper end of the resin upper frame 212 and is close to the indoor side surface of the indoor upper rail 112a. are improving.

As shown in FIG. 3, the lower frame 22 of the inner shoji 2 includes a metal lower frame 221 made of an extruded shape such as an aluminum alloy and having a hollow portion, and a hollow portion engaged with the interior side of the metal lower frame 221. The indoor side is provided with a resin lower frame 222, and an outdoor frontage wall 221a formed by extending the indoor-side inner peripheral surface of the metal lower frame 221 and the indoor side formed by extending the indoor-side inner peripheral surface of the resin lower frame 222. A panel frontage 22a for holding a panel body 25 such as composite glass is formed by the frontage wall 222a.
The outer periphery of the metal lower frame 221 has an opening 221b that is guided by the indoor-side lower rail 122a. A contacting airtight material s2 is arranged to form an airtight line between the lower frame 22 and the lower frame 12 of the inner shoji 2. - 特許庁
In addition, a fin portion 222b is provided at the lower end of the resin lower frame 222 close to the indoor side surface of the room-side lower rail 122a, and the inside of the opening 221b is made into a semi-sealed space to improve the heat insulation of the lower frame 22 of the inner shoji 2. I am letting
A wheel 222c that runs on the indoor-side lower rail 122a is arranged at a predetermined position of the lower frame 22 so as to be able to travel on the indoor-side lower rail 122a.

As shown in FIG. 4, the front (right vertical) frame 24 of the inner shoji 2 is made of an extruded shape such as an aluminum alloy, and is connected to the inside of the right vertical metal frame 241 having a hollow portion and the right vertical metal frame 241. An outdoor frontage wall 241a formed by extending the indoor-side inner peripheral surface of the metal right vertical frame 241 and the indoor-side inner periphery of the resin right vertical frame 242. A panel frontage 24a for holding a panel body 25 such as composite glass is formed by an indoor frontage wall 242a formed by extending a surface.
The outer periphery of the metal right vertical frame 241 has an opening 241b to which the pulling member f is attached. A contacting airtight material s6 is arranged to form an airtight line between the front (right vertical) frame 24 of the inner shoji 2 and the right vertical frame 14. - 特許庁
An anti-vibration member (not shown) is arranged at the upper end of the right vertical frame 24 of the inner shoji 2 to prevent the inner shoji 2 from wobbling with respect to the indoor upper rail 112a during opening and closing.

As shown in FIG. 4, the meeting (left vertical) frame 23 of the inner shoji 2 is a metal left vertical frame 231 having a hollow portion made of an extruded shape such as an aluminum alloy, and the inner side and outer periphery of the metal left vertical frame 231. The left vertical frame 232 is engaged with the left vertical frame 232 so as to cover the left vertical frame 232 . A panel frontage 23a for holding a panel body 25 such as composite glass is formed by the inner peripheral portion 232a.
A smoke return piece is formed on the outdoor side of the siege (left vertical) frame 23 to form a smoke return between it and the indoor side of the sash stile 34 of the outside shoji 3. ) A crescent lock 81 is attached to the outer peripheral surface of the frame 23 .

The panel body 25, as shown in FIGS. It is attached to the panel openings of the lower frame 22 and the left and right vertical frames 23 and 24 via glazing channels.

As shown in FIGS. 3 and 4, the outer shoji 3 of the outdoor fitting A is composed of an upper frame 31, a lower frame 32, and left and right vertical frames 33, 34, which are assembled in four circles, and the inner periphery of which is covered with double glazing or the like. It is formed by attaching a panel body 35 . The exterior shoji 3 will be described below, but since the exterior shoji 3 and the interior shoji 2 basically have the same configuration, the description of the configuration similar to that of the interior shoji 2 will be omitted. .
The upper frame 31 of the outer shoji 3, as shown in FIG. .
An airtight material s3 is arranged on the indoor side of the outdoor side wall forming the opening 311b of the metal upper frame 311 to contact the outdoor side of the outdoor upper rail 111a. forms an airtight line between
In addition, a fin portion 312b is provided at the upper end of the resin upper frame 312, which is close to the indoor side surface of the outdoor upper rail 111a. are improving.

The lower frame 32 of the outer shoji 3, as shown in FIG. .
An airtight material s4 is arranged on the indoor side of the outdoor wall forming the opening 321b of the metal lower frame 321 to contact the outdoor side of the outdoor lower rail 121a. forms an airtight line between
In addition, a fin portion 322b is provided at the lower end of the resin lower frame 322 close to the indoor side surface of the outdoor lower rail 121a, and the inside of the opening 321b is made a semi-sealed space to improve the heat insulation of the lower frame 32 of the outside shoji 3. I am letting

The front (left vertical) frame 33 of the outer shoji 3 includes a left vertical metal frame 331 and a left vertical resin frame 332, as shown in FIG. It has configuration.
On the indoor side of the outdoor wall forming the opening 331b of the metal left vertical frame 331, an airtight material s5 abutting against the inner peripheral protruding wall 131a of the left vertical frame 13 is arranged to form the door edge (left vertical) of the external shoji 3. An airtight line is formed between the frame 33 and the left vertical frame 13.
In addition, the airtight portion 132c of the resin left vertical frame 132 of the left vertical frame 13 is in contact with the left vertical frame 33, so that the opening 321b of the left vertical frame 33 is used as an airtight space, and the left vertical frame 33 of the outer shoji 3 is heat-insulating. are improving.

The meeting (left vertical) frame 34 of the outer shoji 3, as shown in FIG. An airtight material s7 is arranged to abut on the inner wall, forming an airtight line between the inner shoji 2 and the outer shoji 3 in the meeting part.
In addition, on the indoor side surface of the metal right vertical frame 341, a smoke return piece forming a smoke return together with the smoke return piece of the sash 23 of the inner shoji 2 is formed. A receiver 82 is attached.

In the present embodiment described above, the outdoor fittings A include the airtight materials s1 to s6 between the outer shoji 3 and the inner shoji 2 and the frame 1, the airtight material s7 at the meeting part of the outer shoji 3 and the inner shoji 2. , and the wind stop member 114a provided on the lower surface of the upper frame 11 of the frame 1 form an airtight line over the entire fitting, ensuring watertightness, airtightness, and wind pressure resistance at the opening of the building, and a heat insulating member The upper frame 11 and the lower frame 12 are connected by a bridge made of . .

－Indoor fittings (fireproof fittings)－
In the indoor fitting B, an inner shoji 6 and an outer shoji 7 are arranged so as to slide freely with respect to a frame body 5 fixed to the inner peripheral surface of the indoor side of the opening of the building.
The frame body 5 and the frame bodies of the inner and outer shoji windows 6 and 7, which constitute the indoor fitting B, are made of only a metal material such as an aluminum alloy, and are formed without using a resin member for improving heat insulation. In addition, by adopting fire-resistant and heat-resistant single-plate glass as the panel body, it has high fire-prevention performance as fittings.

(Frame body of indoor fittings)
The frame body 5 of the indoor-side fitting B is a plurality of frame members having a substantially plate-like structure formed of extruded profiles such as aluminum alloy. , 54.
Each frame member is composed only of a metal material, and without being framed, as shown in FIGS. A frame 5 is formed around the opening by fixing means such as screws to the inner peripheral surface of the opening.

The upper frame 51, as shown in FIG. An indoor upper rail 511a and an outdoor upper rail 511b are provided.
An indoor side wall 511c extends downward from the indoor end of the upper frame main body 511, and its tip overlaps with the upper ends of the inner and outer shojis 6 and 7 in the projection direction.
A fin-shaped wind stop member 512 is arranged between the indoor-side upper rail 511a and the outdoor-side upper rail 511b of the upper frame 51 and above the joint frame of the inner shoji 6 and the outer shoji 7. ing.
Further, a thermal expansion material f1 that expands when heated in the event of a fire is arranged between the indoor-side upper rail 511a and the outdoor-side upper rail 511b of the upper frame 51 .

As shown in FIG. 5, the lower frame 52 consists of a substantially flat plate-like lower frame main body 521 fixed to the inner peripheral lower surface of the opening of the building by fixing members b, b such as screws, and the upper surface of the lower frame main body 521. It has an indoor lower rail 521a and an outdoor lower rail 521b.
An indoor side wall 521c is erected upward from the indoor side end of the lower frame main body 521, and its tip overlaps with the lower ends of the inner and outer shojis 6 and 7 in the projection direction.

The left and right vertical frames 53 and 54 are, as shown in FIG. , 541 and the left and right vertical frame main bodies 531, 541, and the airtight materials s15, s16 formed on the inner peripheral surfaces of the frame main bodies 531, 541 and disposed on the door frame 64, 73 of the inner shoji 6 or the outer shoji 7 contact with the abutment wall 531a. , 541a.
In addition, at the four corners of the building opening, the indoor upper rail 511a, the outdoor upper rail 511b and the indoor lower rail 521a of the horizontal frame (upper frame 51, lower frame 52), the outdoor lower rail 521b or the vertical frame (left vertical The contact walls 531a and 541a of the frame 53 and the right vertical frame 54) are partially cut out, so that the upper frame 51, the lower frame 52, and the left and right vertical frames 53 and 54 can be fixed over the four circumferences. A frame 5 is constructed.

In the present embodiment described above, the indoor fittings B, which are arranged on the indoor side of the opening of the building, are composed of substantially flat plate-shaped members and rails or the like that stand up from the substantially flat plate-shaped members for the upper, lower, left, and right frames. Therefore, by attaching a substantially flat plate-shaped member to the opening of the building with a fixing member such as a screw, it can be easily retrofitted to the opening of the building where the outdoor fittings are installed. It is possible to suppress the decrease in the opening area of

(Inside and outside shoji of indoor fittings)
As shown in FIGS. 5 and 6, the inner shoji 6 of the indoor fitting B is composed of an upper frame 61, a lower frame 62, and left and right vertical frames 63, 64 formed of extruded members such as aluminum alloy. A panel body 65 is attached to the inner circumference of the frame, and each frame constituting the inner shoji 6 is composed only of a metal material.
As shown in FIG. 5, the upper frame 61 of the inner shoji 6 has a panel frontage 61a for holding the panel body 65 on the inner peripheral side and an opening 61b guided by the indoor upper rail 511a on the outer peripheral side. It has
An airtight material s11 that abuts on the indoor upper rail 511a is attached to the outdoor side wall that constitutes the opening 61b, and a heat expansion material f2 that expands when heated in the event of a fire is arranged at the bottom of the opening 61b. ing.

As shown in FIG. 5, the lower frame 62 of the inner shoji 6 has a panel frontage 62a for holding the panel body 65 on the inner peripheral side and an opening 62b guided by the indoor lower rail 521a on the outer peripheral side. It has
An airtight material s12 is attached to the outdoor side wall forming the opening 62b to contact the indoor lower rail 521a. An expansion member f3 is arranged.
In the panel frontage 62a of the lower frame 62, a reinforcing member 621 having a substantially inverted U-shaped cross section that opens downward is arranged, and in the opening 62b, a substantially U-shaped cross section that opens toward the interior side is provided. shaped reinforcing member 622 is arranged.
At a predetermined position of the opening 62b, wheels 623 that run on the indoor-side lower rail 521a are arranged so as to be able to travel on the indoor-side lower rail 521a.

As shown in FIG. 6, the front door (right vertical) frame 64 of the inner shoji 6 consists of a right vertical frame body 64a having a hollow portion, a panel frontage 64b formed on the inner peripheral side of the right vertical frame body 64a, and a right vertical frame body 64a. A door opening 64c is formed on the outer peripheral side of the frame body 64a, and an airtight material that contacts the contact wall 541a of the right vertical frame 54 is provided on the indoor side surface of the outdoor wall that constitutes the door opening 64c. s16 is arranged.
A reinforcing member 641 having a substantially U-shaped cross section that opens toward the outside of the room is arranged in the hollow inside of the right vertical frame main body 64a of the door (right vertical) frame 64, and in the panel frontage 64b, a reinforcing member 641 is arranged on the outer peripheral side A reinforcing member 642 having a substantially U-shaped cross section and opening toward it is arranged.

The meeting (left vertical) frame 63 of the inner shoji 6, as shown in FIG. A smoke return piece is formed on the outdoor side of the summoning (left vertical) frame 63 to form a smoke return between it and the indoor side of the summing frame 74 of the outside shoji 7. A fire prevention crescent lock 83 is attached to the outer peripheral surface of the left vertical frame 63 .
A reinforcing member 631 having a substantially L-shaped cross section having an inner peripheral portion and a room inner side portion is disposed in the hollow interior of the left vertical stile main body 63a of the meeting (left vertical) stile 63, and in the panel frontage 63b, A reinforcing member 632 having a substantially U-shaped cross section and opening toward the outer peripheral side is arranged.

As shown in FIGS. 5 and 6, the panel body 65 is made of glass having fire resistance and heat resistance, more specifically, single plate glass. It is attached to the 64 panel frontage through flame retardant glazing channels.

As shown in FIGS. 5 and 6, the outer shoji 7 of the indoor fitting B is composed of an upper frame 71, a lower frame 72, and left and right vertical frames 73 and 74 formed of extruded members such as aluminum alloy. It is formed by attaching a panel body 75 to the inner periphery thereof. The exterior shoji 7 will be described below, but since the exterior shoji 7 and the interior shoji 6 basically have the same configuration, the description of the configuration similar to that of the interior shoji 6 will be omitted. .

As shown in FIG. 5, the upper frame 71 of the outer shoji 7 has an airtight material s13 attached to the outdoor side wall forming the opening 71b and abutting on the outdoor side upper rail 511b. is arranged with a thermally expansive material f4 that expands due to heating in the event of a fire.
As shown in FIG. 5, the lower frame 72 of the outer shoji 7 has an airtight material s14 attached to the outdoor side wall forming the opening 72b, and the airtight material s14 is attached to the outdoor side lower rail 521b. A thermal expansion material f5 that expands when heated in the event of a fire is arranged on the outdoor side of the indoor side wall.
In the panel frontage 72a of the lower frame 72, a reinforcing member 721 having a substantially inverted U-shaped cross section that opens downward is arranged, and in the opening 72b, a substantially U-shaped cross section that opens toward the interior side is provided. shaped reinforcing member 722 is arranged.

As shown in FIG. 6, the door (left vertical) frame 73 of the outside shoji 7 is an airtight material that contacts the contact wall 531a of the left vertical frame 53 on the indoor side of the outdoor wall that constitutes the door opening 73c. s15 is arranged.
In the hollow interior of the left vertical frame body 73a of the door (left vertical) frame 73, a reinforcing member 731 having a substantially U-shaped cross section that opens toward the outside of the room is arranged. A reinforcing member 732 having a substantially U-shaped cross section and opening toward it is arranged.

As shown in FIG. 6, the meeting (right vertical) frame 74 of the outer shoji 7 is made of an extruded shape such as an aluminum alloy and has a hollow portion. A panel frontage 74b is formed, and a smoke return piece forming a smoke return together with the smoke return piece of the sash 63 of the inner shoji 6 is formed on the indoor side surface of the right vertical frame main body 74a. A fire prevention crescent receiver 84 is attached to the inner peripheral side of the .
A reinforcing member 741 having a substantially L-shaped cross section having an inner peripheral portion and an outdoor side portion is arranged in the hollow interior of the right vertical frame main body 74a of the meeting (right vertical) frame 74, and in the panel frontage 74b, A reinforcing member 742 having a substantially U-shaped cross section and opening toward the outer peripheral side is arranged.

In the above embodiment, the indoor fitting B arranged on the indoor side of the opening of the building has the thermal expansion material f1 arranged between the indoor-side upper rail 511a and the outdoor-side upper rail 511b of the upper frame 51. At the bottom of the openings 61b and 71b of the upper frames 61 and 71 of the inner and outer shoji screens 6 and 7, the thermal expansion materials f2 and f4 are arranged. expands, it is possible to prevent communication between the upper frame of the indoor fitting B and the upper portion of the shoji.
Similarly, since the thermal expansion materials f3 and f5 are arranged in the openings 62b and 72b of the lower frames 62 and 72 of the inner and outer shoji 6 and 7, the thermal expansion materials f3 and f5 will expand in case of fire. Therefore, it is possible to prevent communication between the lower frame and the lower part of the shoji in the fitting B on the indoor side.

Reinforcing members are arranged on the lower frames 62, 72 and the left and right vertical frames 63, 64, 73, 74 of the indoor fittings B, and the inner and outer shojis 6, 7 are equipped with fireproof crescent locks 83 and fireproof locks 83. Since they are engaged by the crescent receivers 84, even if the frame made of aluminum alloy or the like melts due to heat in the event of a fire, the inner and outer shojis 6 and 7 can maintain their shape due to the engagement of the reinforcing members and the fire prevention crescents. It is possible to delay the communication between the frame and the shoji by the thermal expansion materials f1 to f5.
Furthermore, by forming the panel bodies 65 and 75 of the inner and outer shojis 6 and 7 from single-plate fireproof glass having fire resistance and heat resistance, deformation of the glass plates due to heat is prevented and the gap between the composite glass plates is maintained. It is possible to prevent the generation of combustible gas due to burning of the sealing member.

That is, the indoor fitting (fireproof fitting) B of the above embodiment includes a frame arranged at the opening of the building and a shoji having a panel body arranged on the inner periphery of the frame, and the frame is made of a metal material. A plurality of frame members having a substantially plate-like structure made of only metal materials are provided, and the plurality of frame members are fixed to the inner periphery of the opening of the building to form a frame. It is formed by arranging fire-resistant and heat-resistant glass on the periphery, and by installing it in the building opening, it guarantees the fireproof performance of the building opening. In addition, the double-layer fittings of the above embodiment are provided with the outdoor fittings and the indoor fittings arranged at the building openings, and the indoor fittings include the above By arranging the fireproof fittings, it is possible to easily impart a fireproof function to conventional fittings, and as a whole, it is possible to configure a building opening having watertightness, airtightness, wind pressure resistance, and fireproofness.

As described above, in the fire prevention fittings of the embodiment of the present invention, a frame made of only a metal material such as an aluminum alloy and a metal material such as an aluminum alloy are used without using materials that are vulnerable to fire and heat as much as possible. By combining a frame and a shoji made of fire-resistant glass, it is possible to construct fittings specialized in fireproof performance. By forming a frame with a simple shape that forms the necessary parts, it can be installed at the opening of the building by fixing the frame to the indoor side of the fittings that do not have conventional fireproof performance (outdoor side). It is possible to secure the fire prevention performance of the building opening.
Then, by combining the fireproof fittings with fittings that ensure watertightness, airtightness and wind pressure resistance at the opening of the building to constitute a double fitting, watertightness, airtightness, wind pressure resistance and fireproofness as a whole can be achieved. It is possible to easily and reliably construct the fittings.

- Indoor fittings (fireproof fittings) of other embodiments -
The frame body 5 of the indoor fitting B2 of another embodiment of the present invention includes an upper frame 56, a lower frame 57, and left and right vertical frames 58 and 59, each of which has a substantially plate-like structure. 7 and 8, the upper frame 56, the lower frame 57, and the left and right vertical frames 58 and 59 are fixed to the inner peripheral surface of the opening of the building so that the four circumferences of the opening are fixed. A frame 5 is formed.

As shown in FIG. 7, the upper frame 56 includes a substantially flat upper frame body 561 made of a resin material and an upper frame body 561 made of a metal material such as an aluminum alloy. It has a rail member 562, and the upper frame main body 561 and the upper rail member 562 are fixed together to the upper surface of the inner peripheral surface of the building opening by fixing means b4 such as screws. and an indoor side wall 561b hanging down from the indoor end of the upper frame main body 561a. Two indoor and outdoor heat expansion members f61, f61 are arranged along almost the entire length in the viewing direction.
The upper rail member 562 has an indoor-side upper rail 562a and an outdoor-side upper rail 562b that are vertically installed downward from both indoor and outdoor ends. A thermal expansion member f62 is arranged between the outdoor-side upper rail 562b.
A fin-shaped wind stop member 563 is arranged between the indoor upper rail 562a and the outdoor upper rail 562b of the upper frame 56 and above the joint frame of the inner shoji 6 and the outer shoji 7. ing.

As shown in FIG. 7, the lower frame 57 includes a substantially flat plate-shaped lower frame main body 571 made of a resin material, and a lower frame body 571 made of a metal material such as an aluminum alloy. It has a rail member 572, and the lower frame main body 571 and the lower rail member 572 are both fixed to the lower surface of the inner peripheral surface of the opening of the building by fixing means b4 such as screws.
The lower frame main body 571 has a lower frame main body 571a fixed to the opening of the building, and an indoor side wall 571b erected upward from the indoor side end of the lower frame main body 571a. and the inner peripheral surface of the opening of the building, two indoor and outdoor heat expansion members f71, f71 are arranged along almost the entire length in the viewing direction.
The lower rail member 572 has an indoor-side lower rail 572a and an outdoor-side lower rail 572b that stand upright in and out of the room. A thermal expansion material f72 is arranged between the .

As shown in FIG. 8, the left and right vertical frames 58 and 59 have substantially flat plate-like left and right vertical frame main bodies 581 and 591 made of a resin material. It is fixed to both longitudinal inner peripheral surfaces of the building opening.
The left and right vertical frame main bodies 581 and 591 are fixed to the opening of the building, and the left and right vertical frame main bodies 581a and 591a are fixed to the left and right vertical frame main bodies 581a and 591a. central walls 581b, 591b protruding from the left and right vertical frame main bodies 581a, 591a; indoor side walls 581c, 591c protruding in the inner peripheral direction from the indoor ends of the left and right vertical frame main bodies 581a, 591a; , and 591a projecting in the inner peripheral direction from the outdoor side ends of 591a. , two heat expansion members f81, f81, f91, f91 are arranged along the entire length in the viewing direction.
At the inner peripheral ends of the central walls 581b, 591b, fin-shaped airtight pieces are provided on both the indoor and outdoor sides, and when the inner shoji 6 or the outer shoji 7 is closed, the door frame of the inner and outer shoji 6, 7 abut against 69,78.

An elongated member made of a metal material and having a substantially L-shaped cross section is provided on the inner peripheral surface of the left vertical frame 58 on the outside of the central wall 581b and on the inner peripheral surface of the room on the inner side of the central wall 591b of the right vertical frame 59. are arranged. The reinforcing member 582 arranged on the left vertical frame 58 covers the outside surface of the center wall 581b of the left vertical frame 58 and the inner peripheral surface of the left vertical frame body portion 581a, and the reinforcing member 592 arranged on the right vertical frame 59 , cover the indoor side surface of the central wall 591b of the right vertical frame 59 and the inner peripheral surface of the right vertical frame main body 591a, and are fixed to the building opening together with the left and right vertical frame main bodies 581a and 591a by fixing members b5, respectively. there is
Heat expansion members f82 and f92 are arranged on the inner peripheral surfaces of the reinforcing members 582 and 592 arranged on the left and right vertical frames 58 and 59, respectively.

Also in the indoor fitting B2 of another embodiment, at least the indoor upper rails 562a of the upper rail members 562 and the lower rail members 572 of the horizontal frames (upper frame 56, lower frame 57) The upper frame 56, the inner lower rail 572a, the outer lower rail 572b, or the central walls 581b, 591b of the vertical frames (the left vertical frame 58, the right vertical frame 59) are partially cut out. The lower frame 57 and the left and right vertical frames 58 and 59 can be fixed over the four circumferences to form the frame 5 .

In the other embodiments described above, the indoor-side fittings B2 arranged on the indoor side of the opening of the building have upper, lower, left, and right frames made up of substantially flat plate-shaped members and upper and lower rail members. A flat plate-like member can be placed at the opening of the building, upper and lower rail members can be placed on the inner peripheral surfaces of the upper and lower frames, and fixed to the opening of the building by fixing means such as screws. Therefore, it is possible to easily construct the opening part of the building in which the outdoor side fittings have already been constructed as a post-installation, and it is possible to suppress the reduction of the opening area after the construction.

(Inside and outside shoji of indoor fittings)
As shown in FIGS. 7 and 8, the inner shoji 6 of the indoor fitting B2 of the other embodiment described above includes an upper frame 66, a lower frame 67, and left and right vertical frames 68 and 69, which are assembled around the four sides. It is formed by attaching a panel body 65 to the periphery.
As shown in FIG. 7, the upper frame 66 of the inner shoji 6 has an upper frame main body 661 made of a resin material and a reinforcing core material 662 made of a metal material such as an aluminum alloy and embedded in the upper frame main body 661. there is
The upper frame main body 661 has a panel frontage 661a for holding the panel body 65, and an opening 661b formed on the outer peripheral side of the panel frontage 661a and guided by the indoor upper rail 562a. A core material 662 is arranged.

A reinforcing member 663 made of a metal material such as steel and holding the panel body 65 is arranged in the panel frontage 661a. 661a.
Airtight pieces are provided at the upper ends of the inner and outer walls forming the opening 661b so as to abut or approach the upper rails 562a on the inner side of the room.

The reinforcing core material 662 is provided along the inner wall of the opening 661b from the bottom wall 662a arranged along the bottom of the opening 661b and the indoor-side end and the outdoor-side end of the bottom wall 662a. The interior wall portion 662b and the exterior wall portion 662c are provided, and the thermal expansion material f63 is arranged on the outer peripheral surface (upper surface) of the bottom wall portion 662a, and the lower surface of the bottom wall portion 662a and the bottom portion of the opening 661b are separated from each other. A thermal expansion material f64 is arranged between them.
The reinforcing core member 662 and the reinforcing member 663 are connected via connecting means with the bottom wall of the opening 661b and the thermal expansion member f64 interposed therebetween. A thermal expansion material f65 is arranged.

The lower frame 67 of the inner shoji 6, as shown in FIG. 2 It has a reinforcing core 673 .
The lower rail main body 671 includes a lower rail main body portion 671a having a hollow portion, a panel frontage 671b formed on the inner peripheral side of the lower rail main body portion 671a for holding the panel body 65, and an outer peripheral side of the lower rail main body portion 671a. , and has an opening 671c guided by the indoor-side lower rail 572a.

The first reinforcing core member 672 has a hollow shape with a rectangular cross section, and is arranged in the hollow portion of the lower rail main body portion 671a. On the other hand, the second reinforcing core member 673 has a cross-sectional shape with a rectangular hollow portion and an opening opening downward, and is arranged in the opening 671c of the lower rail main body portion 671a. In the hollow portion of the first reinforcing core member 672, a first reinforcing member 674 made of steel or the like and having a substantially U-shaped cross section is arranged so as to open in the outer peripheral direction. , a second reinforcing member 675 and a third reinforcing member 676 having a substantially U-shaped cross section are arranged so as to open toward the room.

A fourth reinforcing member 677 made of a metal material such as steel and holding the panel body 65 is arranged in the panel frontage 671b. It is held in the panel frontage 671b via.
The fourth reinforcing member 677 and the first reinforcing member 674 arranged on the first reinforcing core member 672 are connected via connecting means across the bottom wall of the panel frontage 671b. A thermal expansion material f73 is arranged between the glazing channel and the glazing channel.
In addition, the first reinforcing core member 672 and the second reinforcing member 675 inserted in the second reinforcing core member 673 are connected by connecting means with the lower wall of the lower rail main body portion 671a interposed therebetween. The second reinforcing member 675 is connected to the third reinforcing member 676 by connecting means.

Heat expansion materials f74 that expand when heated in the event of a fire are arranged on the lower surface of the third reinforcing member 676, the lower indoor side surface of the outdoor side wall of the second reinforcing core member 673, and the lower indoor side surface of the indoor side wall.
At a predetermined position of the opening 671c, a wheel 678 that runs on the indoor-side lower rail 572a is arranged so as to be able to travel on the indoor-side lower rail 572a.

As shown in FIG. 8, the front (right vertical) frame 69 of the inner shoji 6 has a right vertical frame main body 691 made of a resin material.
The right vertical frame body 691 has a right vertical frame body portion 691a having a hollow portion with a substantially rectangular cross section, and a panel frontage 691b formed on the inner peripheral side of the right vertical frame body portion 691a for holding the panel body 65. ing.
A first reinforcing member 692 made of a metal material such as steel and having a substantially U-shaped cross section and opening toward the outer peripheral side is arranged in the hollow portion of the right vertical frame main body portion 691a. In the panel frontage 691b, a second reinforcing member 693, which is also made of a metal material and opens toward the inner circumference, is arranged to support the end face of the panel body 65 and has a substantially U-shaped cross section. , the second reinforcing member 693 and the flame-retardant glazing channel to the panel frontage 691b.

A heat expansion material f93 that expands when heated in the event of a fire is arranged on the inner peripheral surfaces of the projection wall of the first reinforcing member 692 having a U-shaped cross section and the interior and exterior walls of the room.
The first reinforcing member 692 and the second reinforcing member 693 are connected by connecting means with the inner peripheral wall of the right vertical frame body portion 691a and the thermal expansion material f94 interposed therebetween. A thermal expansion material f95 is arranged between the glazing channel and the glazing channel.

The meeting (left vertical) frame 68 of the inner shoji 6 has a left vertical frame main body 681 made of a resin material, as shown in FIG.
The left vertical frame body 681 has a left vertical frame body portion 681a having a hollow portion and a panel frontage 681b formed on the inner periphery of the left vertical frame body portion 681a on the outside of the room.
On the outdoor side of the summoning (left vertical) frame 68, a smoke return piece made of a metal material is attached to form a smoke return between the indoor side of the summoning frame 79 of the outside shoji 7. A fire prevention crescent lock 83 is attached to the outer peripheral surface of the matching (left vertical) frame 68 .

In the hollow part of the left vertical stile main body 681a of the meeting (left vertical) stile 68, there are at least a surface part along the bottom wall of the panel frontage 681b made of a metal material such as steel and along the outdoor side surface of the left vertical stile main body 681a. A first reinforcing member 682 having a surface portion and a second reinforcing member 683 having a surface portion fixed to the first reinforcing member 682 and along at least the indoor side surface of the left vertical frame body portion 681a are arranged. On the other hand, in the panel frontage 681b, a third reinforcing member 684 having a substantially U-shaped cross section that opens toward the inner circumference is arranged, and the panel body 65 is composed of the third reinforcing member 684 and the flame-retardant gray material. It is held in the panel frontage 681b via a ring channel.
The first reinforcing member 682 and the third reinforcing member 684 are connected by connecting means with the inner peripheral wall of the left vertical frame body portion 681a and the thermal expansion member f84 interposed therebetween. A thermal expansion material f85 is arranged between the bottom surface of the third reinforcing member 684 and the glazing channel, and a thermal expansion material f83 is arranged in either the first reinforcing member 682 or the second reinforcing member 683. .

The panel body 65 is made of glass having fire resistance and heat resistance, such as crystallized glass. As shown in FIGS. panel openings through flame-retardant glazing channels and reinforcing members.

The outer shoji 7 of the indoor fitting B2 is formed by assembling an upper frame 76, a lower frame 77, and left and right vertical frames 78, 79 made of resin material, and attaching a panel body 75 to the inner circumference. ing.
The exterior shoji 7 of the indoor fitting B2 will be described below. Since the exterior shoji 7 and the interior shoji 6 basically have the same configuration, the configuration similar to that of the interior shoji 6 will be described. , the description of which is omitted.

The meeting (right vertical) frame 79 of the outer shoji 7 has a right vertical frame main body 791 made of a resin material, as shown in FIG.
The right vertical frame body 791 has a right vertical frame body portion 791a having a hollow portion and a panel frontage 791b formed on the inner peripheral side of the right vertical frame body portion 791a.
A smoke return piece made of a metal material that forms a smoke return together with the smoke return piece of the call return frame 68 of the inner shoji 6 is attached to the indoor side of the siege (right vertical) frame 79, and the inner periphery of the smoke return piece A fire crescent receptacle 84 is attached to the side.
A first reinforcing member 792 having a substantially U-shaped cross section and opening toward the room is arranged in a hollow portion of a right vertical stile body portion 791 a of the meeting (right vertical) stile 79 . On the other hand, in the panel frontage 791b, a second reinforcing member 793 having a substantially U-shaped cross section that opens toward the inner periphery is arranged, and the panel body 75 is composed of the second reinforcing member 793 and the flame-retardant gray material. It is held in the panel frontage 791b via a ring channel.
The first reinforcing member 792 and the second reinforcing member 793 are connected by connecting means with the inner peripheral wall of the right vertical frame body portion 791a and the thermal expansion member f97 interposed therebetween. Further, the first reinforcing member 792 is provided with a thermal expansion material f96 that expands when heated during a fire.

In the other embodiments described above, the indoor fittings B2 arranged on the indoor side of the opening of the building include the upper frame 56, the lower frame 57, and the left and right vertical frames 58, 59 made of resin material. A frame is formed by arranging a rail member or reinforcing member made of material, and the frame is fixed to the building opening with a heat expansion material interposed between the frame and the building opening. Therefore, in the event of a fire, the thermal expansion material intervening between the building opening expands, closing the gap between the building opening and the frame caused by the deformation and melting of the frame by the heat of the fire, The frame can be protected at the opening of the building, and the spread of fire can be suppressed.
In addition, the thermal expansion material placed between the frame and the building opening is not placed on the entire outer peripheral surface of the frame, but placed in two lines, one on the outdoor side and the other on the indoor side. Deformation of the frame due to excessive expansion can be prevented.

In addition, in the indoor fittings B2, the outer shoji 6 and 7 have a reinforcing core or a reinforcing member made of a metal material in the upper stile main body, the lower stile main body, and the left and right vertical stile main bodies made of resin material. The reinforcing core material and the reinforcing members are connected to each other by connecting means, and the heat-expandable material is arranged at appropriate portions of the reinforcing core material and the reinforcing member.
In particular, on the vertical frame body of the door frame facing the vertical frame, a reinforcing member with a substantially U-shaped cross section that opens toward the outer periphery is arranged, and the three inner peripheral surfaces of the reinforcing member are heat-expanded. material is placed.
Therefore, the heat-expanding material expands early in case of fire from either the indoor side or the outdoor side, and the heat-expanding material that has expanded on the inner circumference of the reinforcing member is on the outer circumference side, that is, the vertical frame, the reinforcing member 582, Since it expands toward 592, even if the door frame main body made of resin material melts and disappears, the space between the shoji and the frame can be reliably sealed.

Furthermore, in the vertical frame (left vertical frame) on the side where the outer shoji is placed when the fittings are closed, reinforcing members and heat expansion materials are placed on the outdoor side of the central wall of the vertical frame, so that the inner shoji when the fittings are closed. In the vertical frame (right vertical frame) on the side where it is arranged, the reinforcing member and the thermal expansion material are placed on the indoor side of the central wall of the vertical frame, and the thermal expansion material placed in the left and right vertical frames is placed on the vertical frame. The heat expansion material is arranged near the center position in the prospect direction, and the heat expansion material is arranged between the inner and outer rails of the upper and lower rail members having indoor and outer rails in the upper and lower frames, and is arranged in the upper and lower frames. are arranged near the center position of the upper and lower frames in the prospective direction, thereby forming a fire prevention line that blocks the space between the frame and the inner and outer shoji in the event of a fire, continuously around the four circumferences at the prospective direction central position of the frame. be able to.
Therefore, even if the frame or frame made of resin material melts in the event of a fire, the thermally expansible material expands so as to wrap the connected reinforcing core material and reinforcing member, and the shape of the inner and outer shojis 6 and 7 can be maintained. The communication between the frame and the shoji can be delayed by the heat expansion material over the four circumferences of the fittings.

As described above, in fire prevention fittings according to other embodiments of the present invention, a reinforcing core material or a reinforcing member made of a metal material is arranged together with a thermally expansive material in a frame body and a frame body body made of a resin material. , it is possible to configure fittings that specialize in fireproof performance.
Since the frame body of this fireproof fitting is formed as a frame body having a simple shape in which a rail member is arranged on the inner peripheral surface of a plate-like member, it can be compared with a room of a fitting (outdoor side) that does not have a conventional fireproof performance. The frame body can be installed in the opening of the building using fixing means such as screws, and the opening of the building can be easily provided with high fireproof performance.
Then, by combining the fireproof fittings with fittings that ensure watertightness, airtightness and wind pressure resistance at the opening of the building to constitute a double fitting, watertightness, airtightness, wind pressure resistance and fireproofness as a whole can be achieved. It is possible to easily and reliably construct the fittings.

In addition, in the present invention, in addition to watertightness, airtightness, and wind pressure resistance, outdoor fittings are provided with fireproof performance, etc. Similarly, indoor fittings are provided with fireproof performance, watertightness, and It does not exclude those with airtight performance and wind pressure resistance performance, etc. At least, the outdoor fittings ensure watertight performance, airtight performance and wind pressure resistance performance at the building openings, and the indoor fittings ensure fire prevention at the building openings. Any material that guarantees performance may be used.
In addition, the configuration for imparting watertightness, airtightness, and wind pressure resistance to outdoor fittings is not limited to the configuration of the above-described embodiment, and similarly, the configuration for imparting fireproof performance to indoor fittings. However, it is not limited to the configuration of the above embodiment.
Furthermore, in the present invention, the indoor fittings and the outdoor fittings are not limited to double sliding windows, and any type of window may be adopted.

Reference Signs List 1: frame 11: upper frame 111: outdoor upper frame 111a: outdoor upper rail 111b: screen door upper rail 112: indoor upper frame 112a: indoor upper rail 113: bridge member 114a: wind stop member 114b: wind stop member 115 : Resin upper frame 115a : Jaw 12 : Lower frame 121 : Outdoor lower frame 121a : Outdoor side lower rail 121b : Screen door lower rail 122 : Indoor lower frame 122a : Indoor side lower rail 123 : Bridge member 124 : Resin cover member 125 : Resin lower frame 125a: Jaw 13: Left vertical frame 131: Left vertical frame main body 131a: Inner circumferential projecting wall 132: Resin left vertical frame 132a: Main body 132b: Jaw 132c: Airtight portion 14: Right vertical frame 141: Right Vertical frame main body 141a: Inner peripheral projecting wall 142: Resin Right vertical frame 142a: Main body 142b: Jaw 2: Inner shoji 21: Upper frame 21a: Panel frontage 211: Metal upper frame 211a: Outdoor frontage wall 211b: Opening 212: Resin upper frame 212a: Indoor-side frontage wall 212b: Fin portion 22: Lower frame 22a: Panel frontage 221: Metal lower frame 221a: Outdoor-side frontage wall 221b: Opening 222: Resin lower frame 222a: Indoor-side frontage wall 222b : Fin portion 222c : Fin portion 23 : Right vertical frame 23a : Panel frontage 231 : Metal left vertical frame 231a : Outdoor frontage wall 232 : Resin left vertical frame 232a : Indoor inner peripheral portion 24 : Door frame 24a : Panel frontage 241 : Metal right vertical frame 241 a : Outdoor frontage wall 241 b : Opening 242 : Resin right vertical frame 242 a : Indoor frontage wall 25 : Panel body 3 : Outside shoji 31 : Upper frame 311 : Metal upper frame 311 b : Opening 312 : Resin upper frame 312b : Fin portion 32 : Lower frame 321 : Metal lower frame 321b : Opening 322 : Resin bottom frame 33 : Door end frame 331 : Metal left vertical frame 331b : Opening 332 : Resin left vertical frame 34 : Door Combined frame 341 : Metal right vertical frame 35 : Panel body 4 : Screen door shoji 5 : Frame body 51 : Upper frame 511 : Upper frame main body 511a : Indoor upper rail 511b : Outdoor outer upper rail 511c : Indoor side wall 512 : Wind stop member 52: Lower frame 521: Lower frame main body 521a: Indoor lower rail 521b: Outdoor outer lower rail 521c: Indoor side wall 53: Left vertical frame 531: Right vertical frame main body 531a: Contact wall 54: Right vertical frame 541: Right vertical Frame main body 541a : Abutment wall 6 : Inner shoji 61 : Upper frame 61a : Panel frontage 61b : Opening 62 : Lower frame 62a : Panel frontage 62b : Opening 621 : Reinforcement member 622 : Reinforcement member 623 : Wheel 63 : Joint Frame 63a : Left vertical frame main body 63b : Panel frontage 631 : Reinforcement member 632 : Reinforcement member 64 : Door front frame 64a : Right vertical frame main body 64b : Panel frontage 64c : Door front opening 641 : Reinforcement member 642 : Reinforcement member 65 : Panel body 7 : Outside shoji 71 : Upper frame 71b : Opening 72 : Lower frame 72a : Panel frontage 72b : Opening 721 : Reinforcement member 722 : Reinforcement member 73 : Door front frame 73a : Left vertical frame main body 73b : Panel frontage 73c : Door opening 731 : Reinforcement member 732 : Reinforcement member 74 : Reinforcement stile 74a : Right vertical stile body 74b : Panel frontage 741 : Reinforcement member 742 : Reinforcement member 75 : Panel body 81 : Crescent lock 82 : Crescent receiver 83 : Fire prevention crescent lock 84: Fire prevention crescent receiver

One embodiment includes an outdoor device that closes a building opening, and an indoor device that is arranged on the indoor side of the outdoor device and closes the building opening. It has the watertightness, airtightness and wind pressure resistance required for building openings, and the indoor device is an opening device that has the fireproof performance required for building openings. .

Claims (1)

An indoor fitting arranged on the inner periphery of a building opening, and an outdoor fitting arranged on the outdoor side of the indoor fitting at the building opening,
Double-layered fittings characterized in that outdoor fittings ensure watertightness, airtightness, and wind pressure resistance performance at building openings, and interior fittings guarantee fireproof performance at building openings.

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