JP6730913B2 - Joinery - Google Patents

Description

The present invention is a fitting including an inner surface material provided on a portion of the frame body on the indoor side and an outer surface material provided on a portion of the frame body on the outdoor side in a state where a space is secured between the inner surface material and the inner surface material. It is about.

Conventionally, some fittings have a heat insulating property improved by securing a space between an outer surface material and an inner surface material. Further, as this type of fitting, there is also provided one in which a shielding device is arranged in a space secured between an outer surface material and an inner surface material (for example, refer to Patent Document 1). The shielding device is, for example, a horizontal blind device in which a plurality of slats move up and down. According to the fitting provided with the shielding device, it is possible to prevent the influence of the solar radiation from reaching the room.

JP, 2009-150099, A

By the way, in a scene where design is required for the appearance of a building, a fitting exhibiting an appearance shape other than a rectangle is often applied. For example, a fitting may be applied in which the portion corresponding to the upper frame is curved so as to be convex upward and has an arch shape.

However, in a fitting in which the portion corresponding to the upper frame has an arch shape, it is difficult to dispose the shielding device between the outer surface material and the inner surface material even if the effect of solar radiation is to be prevented. Such a problem is that even if the portion corresponding to the upper frame is other than the arched shape, the upper portion becomes narrower than the lower portion of the frame body like the triangular shape or the shape in which both corners are chamfered. If it exists, it can occur similarly.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a fitting that can reduce the situation where the influence of solar radiation reaches the interior regardless of the external shape.

In order to achieve the above-mentioned object, the fitting according to the present invention is an inner surface material provided in a portion that is an inner side of a frame body, and an outdoor side of the frame body with a space secured between the inner surface material and In a fitting including an outer surface member provided in a portion, the frame body has an inner frame portion that supports the inner surface material and an outer frame portion that supports the outer surface material, and the inner frame portion Has a rectangular frame shape having left and right inner vertical frame portions and upper and lower inner horizontal frame portions, and the outer frame portion is at least partially formed integrally with the inner frame portion in common. An outer seamless frame having a frame part and having an outer shape different from that of the inner frame part, and having an air passage for ventilating between the indoor side and the outdoor side in the upper part of the outer frame part. A part is provided so as to divide the outer surface material into upper and lower parts, and the outer surface material and the inner surface are provided between an inner lateral frame portion arranged below the inner frame portion and a lower portion of the outer frame portion. It is characterized in that a vent hole is provided for communicating a space with the material to the outside .

According to this invention, regardless of the shape of the outer frame portion, the inner frame portion is formed in the shape of a rectangular frame. Therefore, the shielding device for shielding the solar radiation is arranged in the inner horizontal frame portion located above the inner frame portion. If it is installed, it is possible to reduce the situation where the effect of solar radiation reaches the room.

Further, in the present invention, in the above-described fitting, the inner horizontal frame portion arranged above the inner frame portion supports a shielding member so as to be capable of moving up and down on a lower surface of a portion located between the inner frame portion and the outer frame portion. A shielding device is provided.

According to the present invention, by appropriately raising and lowering the shielding member, it is possible to easily switch between a state where the solar radiation is blocked and a state where the solar radiation is not blocked.

Further, the present invention is characterized in that, in the fitting described above, the inner surface member is supported so as to be openable with respect to the inner frame portion.

According to the present invention, by opening the inner surface material, the surface of the outer surface material facing the room can be easily cleaned.

Further, the present invention is the above-described fitting, wherein the inner frame portion is provided with an inner seamless frame portion so as to vertically divide the inner surface material, and the inner surface material is divided by the inner seamless frame portion. The upper and lower parts are individually supported so as to be openable.

According to this invention, since the opening unit of the inner surface material is small, it is possible to further support the two parts divided by the inner seamless frame portion so that the opening and closing directions are different from each other, and it is secured inside the room. The open space of the inner surface material can be reduced.

According to the present invention, it is possible to ventilate the space secured between the outer surface material and the inner surface material through the ventilation passage of the outer seamless frame portion and the ventilation port provided in the lower portion of the outer frame portion, and the effect of solar radiation. It is possible to more reliably prevent the situation in which the indoor space reaches.

Further, the present invention is characterized in that, in the above-described fitting, the outer seamless frame portion is provided at a portion which is an extension of a ceiling panel provided in a room along a horizontal direction.

According to the present invention, the outer seamless frame is less likely to be visually recognized from the indoor side, and the designability from the indoor side can be improved.

Further, the present invention is the above-described fitting, wherein the outer frame portion has left and right outer vertical frame portions integrally formed with the inner frame portion, and an outer horizontal frame configured to be convex upward. The upper end portions of the left and right outer vertical frame portions are connected by a portion.

According to the present invention, it is possible to provide a fitting in which the portion corresponding to the upper frame is convex upward when viewed from the outside.

Further, the present invention is characterized in that, in the above-described fitting, a region surrounded by the inner frame portion and the outer frame portion is covered with a cover panel.

According to the present invention, it is possible to prevent the outer wall of the building from being exposed through the gap between the inner frame portion and the outer frame portion.

According to the present invention, the inner frame portion is formed into a rectangular frame shape regardless of the shape of the outer frame portion. Therefore, a shielding device that blocks solar radiation is arranged in the inner horizontal frame portion located above the inner frame portion. If it is installed, it is possible to reduce the situation where the effect of solar radiation reaches the room.

FIG. 1 is a view of a part of a building to which a fitting, which is an embodiment of the present invention, is viewed from the outside. 2 is a cross-sectional view taken along the line I-I in FIG. FIG. 3 is a vertical sectional view of the building shown in FIG. FIG. 4 is a view of the fitting applied to the building shown in FIG. 1 as viewed from the indoor side. 5A and 5B conceptually show a frame body in which the outer surface material and the inner surface material are omitted in the fitting shown in FIG. 1, FIG. 5A is a perspective view of an assembled state, and FIG. 5B is an exploded perspective view. FIG. 6 is a sectional view taken along line II-II in FIG. FIG. 7 is a sectional view taken along line III-III in FIG. FIG. 8 is a sectional view taken along line IV-IV in FIG. FIG. 9 is a sectional view taken along line VV in FIG. 10 is a cross-sectional view taken along line VI-VI in FIG. FIG. 11 is a perspective view conceptually showing Modification 1 of the fitting according to the present invention. FIG. 12 is a perspective view conceptually showing Modification 2 of the fitting according to the present invention. FIG. 13 is a perspective view conceptually showing Modification 3 of the fitting according to the present invention.

Hereinafter, preferred embodiments of a fitting according to the present invention will be described in detail with reference to the accompanying drawings.
1 to 4 show a building to which a fitting which is an embodiment of the present invention is applied. The fitting illustrated here is attached to the opening formed in the outer wall material W of the building, and is configured by including the inner surface member 20 and the outer surface member 30 inside the frame 10. The frame body 10 has an inner frame portion 110 that supports the inner surface material 20 and an outer frame portion 120 that supports the outer surface material 30. Hereinafter, the configuration of the frame body 10, which is a characteristic part of the present invention, will be described in detail with reference to FIGS. In the following description, terms such as the prospective direction and the finding direction are used for convenience. The prospective direction is a direction along the depth of the fitting, as indicated by an arrow A in the figure. A surface along the prospective direction may be referred to as a prospective surface. The term "finding direction" refers to a vertical direction that is orthogonal to the prospective direction in the case of a horizontally aligned member such as an inner upper frame portion 111 and an inner lower frame portion 112, which will be described later. In the case of a member along the top and bottom, the direction is along the horizontal direction orthogonal to the prospective direction. A plane along the finding direction may be referred to as a finding surface.

The inner frame portion 110 is a portion of the frame body 10 that is disposed on the indoor side of the building, and includes an inner upper frame portion (inner horizontal frame portion) 111, an inner lower frame portion (inner horizontal frame portion) 112, and left and right inner portions. A vertical frame portion 113 is provided. The inner upper frame portion 111, the inner lower frame portion 112, and the left and right inner vertical frame portions 113 each extend linearly to form a rectangular frame-shaped inner frame portion 110. That is, in the inner frame part 110, the inner upper frame part 111 is provided substantially horizontally so as to connect the upper end parts of the left and right inner vertical frame parts 113 extending in the vertical direction, and An inner lower frame portion 112 is provided substantially horizontally so as to connect the lower end portions. The inner surface of the inner upper frame portion 111 and the inner surface of the inner lower frame portion 112 are located on the same plane as the inner surface of the inner vertical frame portion 113. The inner upper frame portion 111 and the inner vertical frame portion 113 are configured so that the dimensions along the prospective direction are substantially the same. On the other hand, the inner lower frame portion 112 is set such that the dimension along the prospective direction is larger than the dimension of the inner upper frame portion 111 and the inner vertical frame portion 113 along the prospective direction.

Between the left and right inner vertical frame portions 113, an inner seamless frame portion 114 is provided at a portion having a height of approximately 2/3 from below. The inner seamless frame portion 114 extends linearly so as to be parallel to the inner upper frame portion 111, and vertically divides the inside of the frame formed by the inner frame portion 110. The dimension of the inner seamless frame portion 114 along the prospective direction is set to be approximately 1/2 of the dimension of the inner vertical frame portion 113 along the prospective direction. The inner face of the inner frame portion 114 facing the room is located on the same plane as the inner face of the inner vertical frame portion 113 facing the room.

In this inner frame portion 110, an upper shoji 210 is arranged above the inner seamless frame 114, and a lower shoji 220 is arranged below the inner seamless frame 114. I am doing it. The upper shoji 210 and the lower shoji 220 are elements constituting the inner surface member 20 described above, and the upper frame 212, 222, the lower frame 213, 223, and the left and right vertical frames are provided on the four circumferences of the rectangular shoji panel 211, 221. It is formed by arranging the frames 214 and 224. Although not clearly shown in the figure, the upper shoji 210 of the present embodiment is supported by the inner frame portion 110 such that the lower frame 213 is opened to the inside of the room with the upper frame 212 side as a fulcrum. On the other hand, the lower shoji 220 is supported by the inner frame part 110 such that the right vertical frame 224 opens to the indoor side with the left vertical frame 224 side as a fulcrum when viewed from the indoor side. When the frames 212, 213, 214 constituting the upper shoji 210 and the frames 222, 223, 224 constituting the lower shoji 220 are closed with respect to the inner frame portion 110, all of them face the room. The finding surface is configured to be on the same plane as the finding surface of the inner frame portion 110 facing the room. The inner surface member 20 is not limited to these configurations, and may be a sliding window or a raising/lowering window that slides to open the inner frame portion 110, or may be a fitting window. It is also possible to apply the one in which the inner frame portion 110 is not opened as described above. In this case, the inner seamless frame portion 114 does not necessarily have to be vertically divided.

On the other hand, the outer frame portion 120 is a portion of the frame body 10 that is disposed on the outdoor side of the building, and has left and right outer vertical frame portions 121, an outer lower frame portion 122, and an outer upper frame portion (outer horizontal frame portion) 123. It is configured with. The outer vertical frame portion 121 is a common frame portion integrally formed with the inner vertical frame portion 113 of the inner frame portion 110, and is configured to have a length of about 3/4 with respect to the inner vertical frame portion 113. More specifically, the outer vertical frame portion 121 is in the shape of a rectangular tube having a hollow portion 121a, the lower end thereof substantially coincides with the inner vertical frame portion 113, and the upper end thereof is the upper end of the inner vertical frame portion 113. It ends at a lower position than. The dimension of the outer vertical frame portion 121 along the prospective direction is set to be approximately 1/2 of the dimension of the inner vertical frame portion 113 along the prospective direction. The inner lower frame portion 112 of the inner frame portion 110 described above is configured to have a prospective dimension that is substantially equal to the sum of the dimensions of the inner vertical frame portion 113 and the outer vertical frame portion 121 along the prospective direction.

The outer lower frame portion 122 of the outer frame portion 120 extends linearly and is arranged so as to connect the lower end portions of the left and right outer vertical frame portions 121. As is apparent from the drawing, the dimension of the outer lower frame portion 122 along the prospective direction is set to be substantially equal to the dimension of the lower frame 223 forming the lower shoji 220 along the prospective direction. The outer lower frame part 122 secures a gap serving as a vent hole 124 with the upper surface of the inner lower frame part 112, and a gap between the outer frame of the lower frame 223 forming the lower shoji 220 and the outdoor side. It is attached to the position where it was secured.

The outer upper frame portion 123 connects between the upper end portions of the outer vertical frame portion 121, and has an arched shape that is curved so as to be convex upward. Both ends of the outer upper frame portion 123 extend substantially in parallel in the same direction, and each end has a connecting insertion portion 123a. The connection insertion portion 123a is a portion formed to have a size that can be fitted into the hollow portion 121a of the outer vertical frame portion 121 described above. The dimension h1 of the outer upper frame portion 123 along the vertical direction is substantially equal to the distance h2 from the upper end of the outer vertical frame portion 121 to the upper end of the inner upper frame portion 111, and the dimension of the outer upper frame portion 123 along the left-right direction. w1 is substantially equal to the mutual distance w2 between the prospective surfaces located on the outer peripheral side of the outer vertical frame portion 121. The dimension d1 of the outer upper frame portion 123 along the prospective direction is set to be substantially equal to the dimension d2 of the outer vertical frame portion 121 along the prospective direction. The outer upper frame portion 123 having the above-described configuration is connected to the outer vertical frame portion 121 in a state where the connecting insertion portions 123a provided at the respective tip portions are fitted in the hollow portions 121a.

The outer upper frame part 123 is provided with an outer seamless frame part 125 and a cover panel 126. The outer seamless frame portion 125 linearly extends above the outer upper frame portion 123 so as to be parallel to the inner upper frame portion 111, and vertically extends inside the frame formed by the outer frame portion 120. It is divided. In the present embodiment, the outer seamless frame portion 125 is arranged at a height position that is an extension of the ceiling panel R installed in the indoor space of the building along the horizontal direction. The ceiling panel R is a panel for covering the floor slab F provided on the beam H on the upper floor. In the present embodiment, the edge portion located on the outdoor side is inclined upward so that the edge portion located on the most outdoor side is approximately the same height as the inner upper frame portion 111. A panel R is provided.

The inner upper frame portion 111, the inner lower frame portion 112, the left and right inner vertical frame portions 113, which form the inner frame portion 110 described above, the inner seamless frame portion 114 provided in the inner frame portion 110, and the outer frame portion 120 are formed. The left and right outer vertical frame portions 121, the outer lower frame portion 122, and the outer seamless frame portion 125 provided on the outer frame portion 120 are extruded frame members formed of a metal such as an aluminum alloy, and are substantially uniform over the entire length in the longitudinal direction. It is configured to have such a cross-sectional shape. Further, the outer upper frame portion 123 that is convex upward is formed by further bending the extruded shape member formed of a metal such as an aluminum alloy.

The cover panel 126 is a thin plate member that closes two regions surrounded by the inner frame portion 110 and the outer upper frame portion 123, and water-stops between the inner frame portion 110 and the outer upper frame portion 123, respectively. The material 127 is attached to the inner frame portion 110 and the outer upper frame portion 123 with the material 127 interposed therebetween.

In this outer frame portion 120, an upper surface material portion 310 is arranged in a portion above the outer seamless frame portion 125, and a lower surface material portion is disposed in a portion below the outer seamless frame portion 125. 320 is provided. The upper surface material portion 310 and the lower surface material portion 320 are elements that constitute the outer surface material 30 described above, and are glass panels having the same plate thickness. In the present embodiment, the peripheral portions of the upper surface material portion 310 and the lower surface material portion 320 are attached to the outer frame portion 120 and the outer seamless frame portion 125 so that they are fitted and killed above and below the outer seamless frame portion 125, respectively. Make up the window. The surface of the upper panel member 310 facing the outside of the room and the plane of the lower panel member 320 facing the outside of the room are located on the same plane.

As is clear from the figure, the outer seamless frame portion 125 is provided with a ventilation passage 125a. The ventilation passage 125a is for communicating the space formed between the outer surface member 30 and the inner surface member 20 to the outside in the upper portion, and is formed in a portion extending from the upper surface to the front surface of the outer seamless frame portion 125. ..

Further, in this fitting, a blind device (shielding device) 50 is arranged on the lower surface of the inner upper frame portion 111 located in the space between the outer surface member 30 and the inner surface member 20. The blind device 50 includes a horizontal blind device 50 that horizontally stacks a plurality of slats (shielding members) 51 having a longitudinal dimension that is slightly smaller than the distance between the left and right inner vertical frame portions 113, and that vertically supports the blind. It is called.

Here, the inner upper frame portion 111 of the inner frame portion 110 has a linear shape as described above, and is provided so as to connect the upper end portions of the left and right inner vertical frame portions 113. Therefore, although the outer upper frame portion 123 of the outer frame portion 120 is formed in an arched shape that is convex upward, the left and right inner vertical frame portions 113 are mutually opposed to the lower surface of the inner upper frame portion 111. It is possible to fit the blind device 50 with the slat 51 having a longitudinal dimension slightly smaller than the space without any gap. Accordingly, when the slat 51 is moved to the highest position, the lowest slat 51 can be accommodated in a state in which it is positioned above the outer seamless frame portion 125. On the other hand, when the slat 51 of the blind device 50 is moved to the lowest position, the lowest slat 51 is located at substantially the same height as the upper surface of the outer lower frame part 122. Therefore, by changing the posture of the slat 51 from this state to the standing posture along the up and down direction, it is possible to prevent the insolation from entering the indoor side through the fitting.

The temperature of the slat 51 that receives the solar radiation gradually rises. However, in this fitting, by keeping the upper shoji 210 and the lower shoji 220 closed, it is possible to reduce the situation in which the heat of the slat 51 is transferred to the room. Moreover, the ventilation hole 124 is provided between the outer lower frame portion 122 and the inner lower frame portion 112, and the ventilation passage 125a is provided in the upper outer seamless frame portion 125. Therefore, in the space between the outer surface member 30 and the inner surface member 20, when the temperature of the slat 51 rises, the outside air is introduced from the ventilation hole 124 by convection, while the air inside the space is removed from the outside blind frame portion 125. It will be discharged from the ventilation passage 125a to the outside. Therefore, according to this fitting, the influence of the temperature rise of the slat 51 on the room can be reduced.

Further, in this fitting, only the outer frame portion 120 is exposed to the outside of the building, and the inner frame portion 110 configured in a rectangular frame shape does not appear to the outside. Therefore, if the above-described fitting is applied, it is possible to improve the design of the exterior appearance of the building by the arch-shaped outer upper frame portion 123 that is convex upward.

In the above-described embodiment, the outer frame portion 120 including the arch-shaped outer upper frame portion 123 that is curved so as to be convex upward is illustrated, but the present invention is not limited to this. For example, as in Modification 1 shown in FIG. 11, by connecting two linear upper outer frame structural members 223a, a substantially triangular outer upper frame portion 223 that is convex upward is configured. Alternatively, as in the second modification shown in FIG. 12, a substantially polygonal outer upper frame portion 323 that is convex upward by connecting a large number of linear upper outer frame structural members 323a is connected. It may be configured. Further, as in Modification 3 shown in FIG. 13, from the upper outer upper frame structural member 423a arranged along the inner upper frame portion 111 of the inner frame portion 110 and the both ends of the upper outer upper frame structural member 423a, respectively. It is also possible to configure a substantially trapezoidal outer upper frame portion 423 that is provided with a side outer upper frame structural member 423b that is gradually inclined downward and that is convex upward. Although not explicitly shown in the figure, in these modifications 1 to 3, the connection between the outer upper frame portions 223, 323, 423 and the outer vertical frame portion 121 is similar to that shown in the embodiment. It suffices to form connection insertion portions at both ends of the frame portions 223, 323, 423 and fit the hollow portions of the outer vertical frame portion 121. In addition, in the modified examples 1 to 3, the same configurations as those of the embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

Further, in the above-described embodiment and modification examples 1 to 3, the outer frame portion 120 in which only the outer upper frame portions 123, 223, 323, and 423 are deformed is illustrated, but the outer upper frame portion 123, In addition to 223, 323, and 423, it is also possible to configure a fitting that has an outer frame portion in which the outer lower frame portion 122 and the outer vertical frame portion 121 have different shapes. In this case, the outer frame portion is preferably configured so that its outer shape does not exceed the outer shape of the inner frame portion. Further, since the horizontal blind device 50 is applied as the shielding device, it is possible to easily switch between the state in which the solar radiation is blocked and the state in which the solar radiation is not blocked by appropriately moving the slats 51 up and down. However, it is not always necessary to apply the horizontal blind device 50 as the shielding device, and for example, even if a vertical blind device in which slats are arranged vertically or a screen formed of a material having a heat shielding property is applied. good.

Furthermore, in the above-described embodiment, the inner surface member 20 is configured to be openable to the inner frame portion 110. Therefore, by opening the inner surface member 20, the surface of the outer surface member 30 that faces the interior of the room. For example, it is possible to clean the space between the outer surface material 30 and the inner surface material 20. However, in the present invention, the inner surface member 20 does not necessarily have to be supported so as to be openable. In addition, when the inner surface member 20 is opened, in the above-described embodiment, since the inner frame portion 110 is provided with the inner seamless frame portion 114, the opening unit of the inner surface member 20 is the upper shoji 210 and the lower shoji 220. It is possible to support the upper shoji 210 and the lower shoji 220 separated by the inner seamless frame portion 114 so that the opening and closing directions are different from each other, and the open space of the inner surface member 20 secured inside the room Can be reduced. However, in the present invention, the inner seamless frame portion 114 does not necessarily need to be provided in the inner frame portion 110.

Further, in the above-described embodiment and Modifications 1 to 3, the outer seamless frame portion 125 having the ventilation passage 125a is applied, and the ventilation hole 124 is secured in the lower portion of the outer frame portion 120. Therefore, the outside air can be circulated between the outer surface member 30 and the inner surface member 20. However, in the present invention, the outer seamless frame portion 125 having the ventilation passage 125a is necessarily applied, or the outer frame is not used. It is not necessary to secure the ventilation hole 124 in the lower portion of the portion 120. In addition, when the outer seamless frame portion 125 is provided, in the above-described embodiment, since the outer seamless frame portion 125 is disposed at a portion which is an extension of the ceiling panel R provided in the room, the outer seamless frame portion 125 is provided from the indoor side. It becomes difficult to be visually recognized, and the design from the inside can be improved. However, the present invention is not necessarily limited to this.

Furthermore, in the above-described embodiment and Modifications 1 to 3, the area surrounded by the inner frame portion 110 and the outer frame portion 120 is covered by the cover panel 126. Therefore, there is no possibility that the outer wall material W is exposed from the region surrounded by the inner frame portion 110 and the outer frame portion 120, but the cover panel 126 may be omitted.

10 frame body, 20 inner surface material, 30 outer surface material, 50 blind device, 51 slats, 110 inner frame portion, 111 inner upper frame portion, 112 inner lower frame portion, 113 inner vertical frame portion, 114 inner blind frame portion, 120 Outer frame part, 121 Outer vertical frame part, 123, 223, 323, 423 Outer upper frame part, 124 Vent hole, 125 Outside seamless frame part, 125a Ventilation passage, 126 Cover panel, 210 Upper shoji, 220 Lower shoji, R Ceiling panel

Claims (7)

A fitting comprising an inner surface material provided on a portion of the frame body on the indoor side, and an outer surface material provided on a portion of the frame body on the outdoor side in a state where a space is secured between the inner surface material and the inner surface material. hand,
The frame has an inner frame portion that supports the inner surface material, and an outer frame portion that supports the outer surface material,
The inner frame portion is configured in a rectangular frame shape having left and right inner vertical frame portions and upper and lower inner horizontal frame portions,
The outer frame part has a common frame part integrally formed with the inner frame part in at least a part, and is configured in an outer shape different from the inner frame part ,
An upper part of the outer frame part is provided with an outer seamless frame part having a ventilation passage for performing ventilation between the indoor side and the outdoor side so as to vertically divide the outer surface member,
A ventilation port is provided between an inner lateral frame portion arranged below the inner frame portion and a lower portion of the outer frame portion for communicating a space between the outer surface material and the inner surface material to the outside. Joinery characterized by being used . In the inner horizontal frame portion disposed above the inner frame portion, a shielding device that supports a shielding member so as to be able to move up and down is disposed on the lower surface of the portion positioned between the inner frame portion and the outer frame portion. The fitting according to claim 1, which is characterized. The fitting according to claim 1 or 2, wherein the inner surface member is supported so as to be openable with respect to the inner frame portion. The inner frame part is provided with an inner seamless frame part so as to divide the inner surface material into upper and lower parts,
The fitting according to claim 3, wherein the inner surface member is individually openably supported in an upper portion and a lower portion divided by the inner seamless frame portion. The fitting according to claim 1 , wherein the outer seamless frame portion is provided in a portion on an extension of a ceiling panel provided in a room along a horizontal direction. The outer frame portion has left and right outer vertical frame portions that are integrally formed with the inner frame portion, and the outer horizontal frame portion is configured to be convex upward, so The fitting according to any one of claims 1 to 5 , wherein the upper end portions are connected to each other. The joiner according to any one of claims 1 to 6 , wherein a region surrounded by the inner frame portion and the outer frame portion is covered with a cover panel.

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