JP2021080718A - Fitting - Google Patents

Abstract

To provide a fitting that can maintain the strength of a frame even if a bridge material, which is made of resin, burns out in the event of a fire, while ensuring heat insulation performance through the bridge material provided between indoor and outdoor frames.SOLUTION: A fitting 1, which has outdoor portions 221, 231, 241 made of aluminum material, and indoor portions 222, 232, 242 made of aluminum material, includes: frames 22, 23, 24 extending in the depth direction; bridge materials 223, 233, 243 disposed between the outdoor portions 221, 231, 241 and the indoor portions 222, 232, 242 and formed of a material having heat insulating properties; and connecting brackets 224, 25, 26 connecting the outdoor portions 221, 231, 241 and the indoor portions 222, 232, 242.SELECTED DRAWING: Figure 5

Description

The present invention relates to fittings.

Conventionally, fittings having improved heat insulating performance have been desired from the viewpoint of energy saving and prevention of dew condensation. On the other hand, a bridge material having an indoor side frame arranged on the indoor side and an outdoor side frame arranged on the outdoor side and having a low thermal conductivity resin is used on the indoor side. Joinery that is arranged between the frame and the outdoor frame is known (see, for example, Patent Document 1). Since this bridge material blocks heat conduction between the indoor side frame and the outdoor side frame, excellent heat insulating performance can be obtained.

Japanese Unexamined Patent Publication No. 2019-167699

In the technique described in Patent Document 1, when the bridge material made of resin is burnt down in the event of a fire, the indoor side frame and the outdoor side frame may be separated and the strength of the frame may be lowered.

In the present invention, the strength of the frame is maintained even if the bridge material made of resin is burnt down in the event of a fire, while ensuring the heat insulating performance by the bridge material arranged between the indoor side frame and the outdoor frame. The purpose is to provide fittings that can be used.

The present invention has an outdoor portion formed of an aluminum material and an indoor side portion formed of an aluminum material, and is between a frame extending in the finding direction and the outdoor side portion and the indoor side portion. The present invention relates to a fitting provided with a bridge material arranged in the above and formed of a material having heat insulating properties, and a connecting metal fitting for connecting the outdoor side portion and the indoor side portion.

It is a front view which looked at the fitting which concerns on one Embodiment from the indoor side. It is a vertical sectional view of a fitting. It is a cross-sectional view of a fitting. It is a vertical cross-sectional view of the lower part of a fitting. It is a cross-sectional view of the part on one side in the left-right direction of a fitting. It is a cross-sectional view of the part on the other side in the left-right direction of the fitting. It is a perspective view which shows the 1st vertical frame side connecting metal fittings. It is a perspective view which shows the 2nd vertical frame side connecting metal fittings.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the present specification, the "finding direction" means the surface direction of the inner shoji 3 and the outer shoji 4 housed in the frame 2 attached to the opening of the building frame, and is referred to as the "expected direction". Means the thickness direction (that is, the depth direction) of the inner sash 3 and the outer sash 4. Further, the "finding surface" means the respective surfaces of the fitting 1 facing the outdoor side and the indoor side, and the "expected surface" means the surface of the fitting 1 extending in the indoor / outdoor direction. Further, in the drawings, the outdoor side is described as "OUTSIDE" and the indoor side is described as "INSIDE".

The fitting 1 of the present embodiment constitutes a so-called sliding window, and as shown in FIGS. 1 to 3, the frame 2 and the sash 3 and the sash 4 arranged to be openable and closable in the frame 2 , Crescent lock 5 and. The frame body 2 is rectangularly framed by an upper frame 21, a lower frame 22, and left and right vertical frames 23 and 24. The frame body 2 is attached to an opening of a building frame (not shown).

As shown in FIG. 2, the upper frame 21 is arranged along the horizontal direction on the upper side of the fitting 1. The upper frame 21 is configured to have a hollow portion and is fixed to the building frame.

As shown in FIG. 2, the lower frame 22 (frame) extends along the horizontal direction on the lower side of the fitting 1. The lower frame 22 includes an outdoor frame 221 (outdoor part) made of an aluminum material, an indoor side frame 222 (indoor side part) made of an aluminum material, a bridge material 223, and a lower frame connecting metal fitting 224. Has. The outdoor frame 221 and the indoor frame 222 are arranged apart from each other in the prospective direction. The outdoor frame 221 has a hollow portion 221a arranged on the outdoor side and arranged along the horizontal direction. The indoor side frame 222 is arranged on the indoor side and is arranged along the horizontal direction. The bridge member 223 is arranged between the outdoor frame 221 and the indoor side frame 222. The bridge material 223 is formed of a material having heat insulating properties.

The lower frame connecting metal fitting 224 connects the outdoor frame 221 and the indoor side frame 222. As shown in FIG. 1, the lower frame connecting metal fitting 224 is arranged on the center side of the lower frame 22 in the left-right direction. As shown in FIG. 2, the lower frame connecting metal fitting 224 has the outdoor frame 221 and the indoor side frame even if the bridge material 223 arranged between the outdoor frame 221 and the indoor side frame 222 is burnt down in the event of a fire. The outdoor side frame 221 and the indoor side frame 222 are connected so that the 222 is not separated from each other. Details of the lower frame connecting metal fitting 224 will be described later.

As shown in FIG. 3, the vertical frames 23 and 24 (frames) extend along the vertical direction on the outside of the fitting 1 in the horizontal direction. The vertical frames 23 and 24 are an outdoor frame 231,241 (outdoor part) made of an aluminum material, an indoor side frame 232, 242 (indoor part) made of an aluminum material, and a bridge material 233,243. And the vertical frame side connecting metal fittings 25 and 26. The outdoor outer frames 231 and 241 and the indoor side frames 232 and 242 are arranged apart from each other in the prospective direction. The outdoor frames 231,241 are arranged on the outdoor side and are formed to have a hollow portion arranged along the horizontal direction. The indoor side frames 232 and 242 are arranged on the indoor side and are arranged along the horizontal direction. The bridge members 233 and 243 are arranged between the outdoor frames 231 and 241 and the indoor side frames 232 and 242. The bridge materials 233 and 243 are formed of a material having heat insulating properties.

The vertical frame side connecting metal fittings 25 and 26 connect the outdoor side frames 231 and 241 and the indoor side frames 232 and 242. As shown in FIG. 1, the vertical frame side connecting metal fittings 25 and 26 are arranged on the central side of the vertical frames 23 and 24 in the vertical direction. As shown in FIG. 3, the vertical frame side connecting metal fittings 25 and 26 are provided even if the bridge members 233 and 243 arranged between the outdoor side frames 231,241 and the indoor side frames 232 and 242 are burnt down in the event of a fire. The outdoor frame 231 and 241 and the indoor frame 232 and 242 are connected so that the outdoor frame 221 and the indoor side frame 232 and 242 are not separated from each other. Details of the vertical frame side connecting metal fittings 25 and 26 will be described later.

Both the inner sash 3 and the outer sash 4 are sliding doors, and are arranged so as to be relatively slidable in the frame body 2. The inner sash 3 and the outer sash 4 form a so-called sliding window in which the opening of the frame 2 is opened or closed by sliding them in the finding direction in the frame 2.

As shown in FIG. 2, the inner sash 3 and the outer sash 4 are engaged with the rails 210a and 210b provided on the upper frame 21 and the rails 220a and 220b provided on the lower frame 22, respectively. .. The inner sash 3 and the outer sash 4 have door rollers 230a and 230b that can travel along the rails 210b and 220b of the lower frame 22, respectively. As a result, the inner sash 3 and the outer sash 4 form a sliding door that can slide and move independently in the left-right direction along the rails 210a, 220a, 210b, and 220b.

As shown in FIG. 1, the internal sash 3 includes a long upper stile 31, a lower stile 32, a left and right vertical stiles, a sash 33 (combination stile of the sash 3), and a door stile. It is composed of a frame 35 framed in a rectangular shape by 34, a glass panel 36 fitted and fixed in the frame 35, a shoji side puller 301, and an operation unit 302 of the ventilation frame. The pull tab 301 on the side of the shoji is attached to the center of the door end stile 34 of the shoji 3 in the vertical direction. The operation unit 302 of the ventilation stile is attached to the upper stile 31 of the internal sash 3.

Further, as shown in FIG. 1, the outer sash 4 includes a long upper stile 41, a lower stile 42, a left and right vertical stiles 43 (combination stiles of the outer sash 4), and a door. It is composed of a stile 45 framed in a rectangular shape by a front stile 44, a glass panel 46 fitted and fixed in the stile 45, a sash-side puller 401, and a sash-side subblock 402. To. The outer sash side puller 401 is attached to the center of the door end stile 44 of the outer sash 4 in the vertical direction. The outer sash side subblock 402 is attached to the lower stile 42 of the outer sash 4.

Details of the lower frame connecting metal fittings 224 and the vertical frame side connecting metal fittings 25 and 26 arranged on the frame body 2 will be described.

The lower frame connecting metal fitting 224 will be described. As shown in FIG. 4, the lower frame connecting metal fitting 224 connects the outdoor frame 221 and the indoor side frame 222 of the lower frame 22 which are arranged apart from each other in the prospective direction with the bridge member 223 interposed therebetween. The lower frame connecting bracket 224 is not fixed to the building frame.

The lower frame connecting metal fitting 224 connects the upper surface of the outdoor frame 221 and the upper surface of the indoor side frame 222. The upper surface of the outdoor frame 221 and the upper surface of the indoor side frame 222 are arranged on the same plane. The lower frame connecting metal fitting 224 has a first metal fitting 225 fixed to the outdoor frame 221 and a second metal fitting 226 fixed to the indoor side frame 222. The lower frame connecting metal fitting 224 connects the outdoor frame 221 and the indoor side frame 222 of the lower frame 22 by connecting the first metal fitting 225 and the second metal fitting 226.

The first metal fitting 225 is formed in a crank shape and is fixed to the upper surface of the outdoor frame 221. The first metal fitting 225 has an outdoor bottom plate 225a, a step rising plate 225b, and an indoor horizontal plate 225c. The outdoor bottom plate 225a is formed in a plate shape extending horizontally in the prospective direction, and is fixed to the upper surface of the outdoor frame 221 on the outdoor side. The step rising plate 225b is formed in a plate shape that rises upward from the indoor end of the outdoor bottom plate 225a. The indoor horizontal plate 225c is formed in a plate shape extending inward from the upper end of the step rising plate 225b. The indoor horizontal plate 225c is formed with a slit opening 225d extending in the left-right direction in the finding direction.

The second metal fitting 226 is formed in a substantially U shape and is arranged on the upper surface of the indoor side frame 222. The second metal fitting 226 has an outdoor rising plate 226a, an intermediate bottom plate 226b, and an indoor rising plate 226c. The intermediate bottom plate 226b is formed in a plate shape that is arranged over the upper surface of the outdoor frame 221 and the upper surface of the indoor side frame 222 so as to straddle the bridge member 223. The indoor side portion of the intermediate bottom plate 226b is fixed to the upper surface of the indoor side frame 222. The outdoor rising plate 226a rises upward from the outdoor end of the intermediate bottom plate 226b. The tip of the outdoor rising plate 226a is inserted into the slit opening 225d of the indoor horizontal plate 225c of the first metal fitting 225. The first metal fitting 225 and the second metal fitting 226 are connected by inserting the tip of the outdoor rising plate 226a of the second metal fitting 226 into the slit opening 225d of the indoor horizontal plate 225c of the first metal fitting 225. The indoor side rising plate 226c rises upward from the indoor side end of the intermediate bottom plate 226b.

In the above lower frame connecting metal fittings 224, the first metal fitting 225 fixed to the upper surface of the outdoor frame 221 and the second metal fitting 226 fixed to the upper surface of the indoor side frame 222 are the outdoor side of the second metal fitting 226. The tip of the rising plate 226a is inserted into the slit opening 225d of the indoor horizontal plate 225c of the first metal fitting 225 to be connected. As a result, while ensuring heat insulation performance by the bridge material 223 arranged between the outdoor frame 221 and the indoor side frame 222, even if the bridge material 223 made of resin is burnt down in the event of a fire, the outdoor side Separation of the frame 221 and the indoor side frame 222 is suppressed, and the strength of the lower frame 22 can be maintained.

The vertical frame side connecting metal fittings 25 and 26 will be described. As shown in FIG. 3, the vertical frame side connecting metal fittings 25 and 26 are arranged apart from each other in the prospective direction with the bridge members 233 and 243 in between, and the outdoor frames 231,241 and the indoor side frames of the vertical frames 23 and 24. 232,242 are connected. Neither the vertical frame side connecting metal fittings 25 and 26 are fixed to the building frame.

As shown in FIGS. 5 and 6, the vertical frame side connecting metal fittings 25 and 26 connect the finding surfaces 231a and 241a of the outdoor frames 231 and 241 and the prospective surfaces 232a and 242a of the indoor side frames 232 and 242. .. The finding surfaces 231a and 241a of the outdoor outer frames 231 and 241 and the prospective surfaces 232a and 242a of the indoor side frames 232 and 242 are arranged orthogonally to each other. The finding surfaces 231a and 241a of the outdoor outer frames 231 and 241 are arranged outside the prospective surfaces 232a and 242a of the indoor side frames 232 and 242 in the left-right direction.

As shown in FIG. 1, the first vertical frame side connecting metal fittings 25 in the vertical frame side connecting metal fittings 25 and 26 are arranged on one side in the left-right direction (left side in FIG. 1). The second vertical frame side connecting metal fittings 26 in the vertical frame side connecting metal fittings 25 and 26 are arranged on the other side (right side in FIG. 1) in the left-right direction of the fitting 1. The first vertical frame side connecting metal fitting 25 and the second vertical frame side connecting metal fitting 26 are arranged on the central side of the vertical frames 23 and 24 in the vertical direction.

As shown in FIGS. 5 and 7, the first vertical frame side connecting metal fitting 25 has a finding surface side connecting plate 251, an intermediate inclined plate 252, and a prospecting surface side connecting plate 253. The finding surface side connecting plate 251 is formed in a plate shape having a width in the left-right direction in the finding direction and extending in the vertical direction in the prospecting direction. The finding surface side connecting plate 251 is connected to the finding surface 231a of the outdoor frame 231 of the vertical frame 23. The plate portions of the finding surface side connecting plate 251 and the finding surface 231a are connected by screws 25a.

When connecting the first vertical frame side connecting metal fitting 25 to the finding surface 231a of the outdoor frame 231 of the vertical frame 23, the screws 25a are arranged so as to extend in the prospective direction and are arranged with the first vertical frame side connecting metal fitting 25. The vertical frame 23 is connected to the finding surface 231a of the outdoor frame 231. The screws 25a are arranged so as to penetrate the first vertical frame side connecting metal fitting 25 and the plate portion of the finding surface 231a of the outdoor frame 231 of the vertical frame 23, and the screws are effective in the first vertical frame side connecting metal fitting 25. With the screws not working on the plate portion of the finding surface 231a of the outdoor frame 231 of the vertical frame 23, the first vertical frame side connecting metal fitting 25 and the finding surface 231a of the outdoor frame 231 of the vertical frame 23 To connect.

The intermediate inclined plate 252 has a width smaller than the vertical length of the finding surface side connecting plate 251 and is formed in a flat plate shape extending inclined from the center of the finding surface side connecting plate 251 in the vertical direction. The intermediate inclined plate 252 extends from the finding surface 231a of the outdoor frame 231 of the vertical frame 23 to the prospective surface 232a of the indoor side frame 232. The intermediate inclined plate 252 is formed so as to be inclined with respect to both the finding surface 231a of the outdoor frame 231 and the prospective surface 232a of the indoor side frame 232, and faces inward in the left-right direction from the outdoor side toward the indoor side. Tilt like. The intermediate inclined plate 252 is formed so as to be inclined without contacting the finding surface 231a of the outdoor frame 231 and the prospective surface 232a of the indoor side frame 232.

The prospective surface side connecting plate 253 is formed in a plate shape extending in the prospective direction, has the same width as the intermediate inclined plate 252, and extends from the indoor end of the intermediate inclined plate 252 to the indoor side. The prospective surface side connection plate 253 is connected to the prospective surface 232a of the indoor side frame 232 by a screw 25b.

The shape of the second vertical frame side connecting metal fitting 26 is different from that of the first vertical frame side connecting metal fitting 25. On the other side (right side in FIG. 1) in the left-right direction in which the second vertical frame side connecting metal fitting 26 is arranged, as shown in FIG. 6, the bridge material 243 and the bridge material 243 are attached to the bridge material 243 arranged in the vertical frame 24. Projects outward in the left-right direction from the prospective surface 242a of the indoor side frame 242 of the vertical frame 24. Therefore, the second vertical frame side connecting metal fitting 26 is formed in a shape that avoids the bridge member 243 and the attachment portion of the bridge member 243.

As shown in FIGS. 6 and 8, the second vertical frame side connecting metal fitting 26 includes a finding surface side connecting plate 261, an intermediate inclined plate 262, an intermediate prospective surface parallel plate 263, and a prospective surface side connecting portion 264. , Have. The finding surface side connecting plate 261 is formed in a plate shape having a width in the left-right direction in the prospective direction and extending in the vertical direction. The finding surface side connecting plate 261 is connected to the finding surface 241a of the outdoor frame 241 of the vertical frame 24. The plate portions of the finding surface side connecting plate 261 and the finding surface 241a are connected by screws 26a.

When the second vertical frame side connecting metal fitting 26 is connected to the finding surface 241a of the outdoor frame 241 of the vertical frame 24, the screw 25b is arranged so as to extend in the prospective direction and is arranged with the second vertical frame side connecting metal fitting 26. The vertical frame 24 is connected to the finding surface 241a of the outdoor frame 241. The screws 25b are arranged so as to penetrate the second vertical frame side connecting metal fitting 26 and the plate portion of the finding surface 241a of the outdoor frame 241 of the vertical frame 24, and the screws are effective in the second vertical frame side connecting metal fitting 26. In a state where the screws are not effective on the plate portion of the finding surface 241a of the outdoor frame 241 of the vertical frame 24, the second vertical frame side connecting metal fitting 26 and the finding surface 241a of the outdoor frame 241 of the vertical frame 24 To connect.

The intermediate inclined plate 262 has a width smaller than the vertical length of the finding surface side connecting plate 261 and is formed in a flat plate shape extending inclined from the lower end portion of the finding surface side connecting plate 261 in the vertical direction. The intermediate inclined plate 262 extends from the finding surface 241a of the outdoor frame 241 of the vertical frame 24 to the prospective surface 242a side of the indoor side frame 242. The intermediate inclined plate 262 is formed so as to be inclined with respect to both the finding surface 241a of the outdoor frame 241 and the prospective surface 242a of the indoor side frame 242, and faces inward in the left-right direction from the outdoor side toward the indoor side. Tilt like. The intermediate inclined plate 262 is formed so as to be inclined without contacting the finding surface 241a of the outdoor frame 241 and the prospective surface 242a of the indoor side frame 242.

The intermediate prospective surface parallel plate 263 is formed parallel to the prospective surface 242a of the indoor side frame 242, and extends from the end portion of the intermediate inclined plate 262 on the indoor side to the indoor side by a predetermined length.

The prospective surface side connecting portion 264 is formed at the indoor end of the intermediate prospective surface parallel plate 263. The prospective surface side connecting portion 264 has a rising piece 264a extending in the finding direction and a prospective surface side connecting piece 264b extending in the prospective direction. The rising piece 264a extends from the end portion of the intermediate prospective surface parallel plate 263 on the indoor side to the vertical frame 24 side (inside) in the left-right direction. The prospective surface side connecting piece 264b extends from the end of the rising piece 264a on the vertical frame 24 side (inside) in the left-right direction to one side in the prospective direction. The prospective surface side connection piece 264b is connected to the prospective surface 242a of the indoor side frame 242 by a screw 26b.

According to this embodiment, the following effects are achieved.

The fitting 1 of the present embodiment has an outdoor frame 221,231,241 made of an aluminum material and an indoor side frame 222,232,242 made of an aluminum material, and is a frame extending in the finding direction. Bridge material 223, which is arranged between (lower frame 22, vertical frame 23, 24), outdoor frame 221,231,241 and indoor side frame 222,232,242 and is formed of a heat insulating material. Connecting metal fittings (lower frame connecting metal fittings 224, first vertical frame side connecting metal fittings 25, second vertical frame side connecting metal fittings) for connecting 233,243, the outdoor side frame 221,231,241 and the indoor side frame 222,232,242. A metal fitting 26) is provided. As a result, the bridge material 223, 233, 243 arranged between the outdoor frame 222,231,241 and the indoor side frame 222,232,242 secures the heat insulating performance, and is composed of resin in the event of a fire. Even if the bridge material 223, 233, 243 is burnt down, the separation between the outdoor frame 221,231,241 and the indoor side frame 222,232,242 is suppressed, and the frame (lower frame 22, vertical frame 23, 24) is suppressed. Can maintain the strength of.

Further, in the present embodiment, the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) do not come into surface contact with the outdoor side frames 231 and 241 and the indoor side frames 232 and 242. It has intermediate inclined plates 252 and 262 formed by being inclined. As a result, the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) can be used only around the screws 25a and 26a and the screws 25b and 26b to the outdoor frame 231,241 and the indoor side frame. Contact 232,242. By bringing the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) into contact with the minimum necessary parts, the outdoor side frames 231 and 241 and the indoor side frames 232 and 242 can be connected. .. Further, since the connecting metal fittings (the first vertical frame side connecting metal fitting 25 and the second vertical frame side connecting metal fitting 26) have the intermediate inclined plates 252 and 262, the outdoor side frames 231 and 241 and the indoor side frames 232 and 242 are separated. When connected, the shapes and positional relationships of the outdoor side frames 231 and 241 and the indoor side frames 232 and 242 can be widely accommodated. As a result, the degree of freedom in design can be improved.

Further, in the present embodiment, the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) are found surfaces 231a, 241a of the outdoor frames 231,241 and the indoor side frames 232,242. The prospective surfaces 232a and 242a of the above are connected. As a result, the directions in which the screws 25a and 26a and the screws 25b and 26b penetrate are different, so that the connecting metal fittings (first vertical frame side connecting metal fitting 25 and second vertical frame side connecting metal fitting 26) are replaced with the outdoor frame 2311. It is hard to come off from 241 and the indoor side frames 232 and 242. Thereby, the connecting strength for connecting the outdoor side frames 231 and 241 and the indoor side frames 232 and 242 can be improved.

Further, in the present embodiment, the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) and the outdoor frame 231 and 241 are found on the finding surfaces 231a while being arranged so as to extend in the prospective direction. , 241a are provided with screws 25a and 26a, and the screws 25a and 26a are found to be connecting metal fittings (first vertical frame side connecting metal fittings 25, second vertical frame side connecting metal fittings 26) and outdoor frames 231,241. The connecting metal fittings (first vertical frame) are arranged so as to penetrate the plate portions of the surfaces 231a and 241a, and the screws 25a and 26a are not effective on the plate portions of the found surfaces 231a and 241a of the outdoor frames 231 and 241. The side connecting metal fittings 25 and the second vertical frame side connecting metal fittings 26) are connected to the finding surfaces 231a and 241a of the outdoor frames 231,241.

Here, if the plate portions of the finding surfaces 231a and 241a of the outdoor frame 231 and 241 are connected by using the screws 25a and 26a, the indoor side frames 232 and 242 are pulled to the outdoor frames 231 and 241. As a result, a gap may be formed in the portion where the bridge members 233 and 243 are arranged. If a gap is formed in the portion where the bridge members 233 and 243 are arranged, water leakage may occur and watertightness may not be ensured. On the other hand, in the present invention, since the screws 25a and 26a are connected to the plate portions of the finding surfaces 231a and 241a of the outdoor frames 231,241 in a state where the screws 25a and 26a are not effective, the outdoor frames 231,241 are in the expected direction. Since it is connected to the screws 25a and 26a in a movable state, it is possible to prevent the outdoor side frames 231 and 241 from pulling the indoor side frames 232 and 242. As a result, it is possible to prevent the formation of a gap in the portion where the bridge members 233 and 243 are arranged. Therefore, watertightness can be ensured.

Further, in the present embodiment, the connecting metal fittings (lower frame connecting metal fittings 224, first vertical frame side connecting metal fittings 25, second vertical frame side connecting metal fittings 26) are the frames (lower frame 22, vertical frames 23, 24). One is provided on the central side in the longitudinal direction. As a result, the connecting metal fittings (lower frame connecting metal fitting 224, first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) can be provided in the minimum necessary portion. Therefore, the strength of the frame (lower frame 22, vertical frame 23, 24) can be maintained with a simple configuration. Further, the cost required for the connecting metal fittings (lower frame connecting metal fitting 224, first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) can be reduced.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified.
For example, in the above-described embodiment, the lower frame 22 and the vertical frames 23 and 24 are provided with connecting metal fittings (lower frame connecting metal fitting 224, first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26). The present invention is not limited to this, and a connecting metal fitting may be provided on the upper frame 21. Further, the vertical frames 23 and 24 are provided with connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) having intermediate inclined plates 252 and 262 (inclined portions), but the present invention is limited to this. Instead, the upper frame 21 and the lower frame 22 may be provided with a connecting metal fitting having an intermediate inclined plate (inclined portion).

Further, in the above embodiment, the connecting metal fittings (lower frame connecting metal fittings 224, first vertical frame side connecting metal fittings 25, second vertical frame side connecting metal fittings 26) are placed on the central side of the lower frame 22 and the vertical frames 23, 24 in the longitudinal direction. However, the present invention is not limited to this, and for example, one connecting metal fitting may be provided on the end side in the longitudinal direction of the frame, or a plurality of connecting metal fittings may be provided in the longitudinal direction of the frame.

Further, in the above-described embodiment, when the connecting metal fittings (first vertical frame side connecting metal fitting 25, second vertical frame side connecting metal fitting 26) are connected to the finding surfaces 231a of the outdoor frames 231,241, the outdoor frame 231 , 241 were connected in the plate portions of the finding surfaces 231a and 241a in a state where the screws 25a and 26a were not effective, but the present invention is not limited to this, and the plate portions of the finding surfaces 231a and 241a of the outdoor frames 231 and 241 You may connect with the screws 25a and 26a working.

1 Joinery 2 Frame 3 Internal shoji 4 External shoji 22 Lower frame (frame)
23 Vertical frame (frame)
24 Vertical frame (frame)
25 1st vertical frame side connecting metal fittings (vertical frame side connecting metal fittings, connecting metal fittings)
25a screw 26 2nd vertical frame side connecting bracket (vertical frame side connecting bracket, connecting bracket)
26a Screw 221,231,241 Outdoor frame (outdoor part)
222,232,242 Indoor side frame (indoor side part)
223, 233, 243 Bridge material 224 Lower frame connecting bracket (connecting bracket)
223, 233, 243 Connecting brackets 231a, 241a Found surface 232a, 242a Expected surface 252,262 Intermediate inclined plate (inclined part)

Claims (5)

A frame that has an outdoor portion made of an aluminum material and an indoor portion made of an aluminum material and extends in the finding direction.
A bridge material arranged between the outdoor side portion and the indoor side portion and formed of a heat insulating material,
A fitting including a connecting metal fitting for connecting the outdoor side portion and the indoor side portion. The fitting according to claim 1, wherein the connecting metal fitting has an inclined portion formed so as not to come into surface contact with the outdoor side portion and the indoor side portion. The fitting according to claim 1 or 2, wherein the connecting metal fitting is a fitting that connects the found surface of the outdoor side portion and the prospective surface of the indoor side portion. When the connecting metal fitting is connected to the finding surface of the outdoor side portion or the finding surface of the indoor side portion, a screw that extends in the prospective direction and connects the connecting metal fitting and the finding surface is provided. Prepare,
The screw is arranged so as to penetrate the connecting metal fitting and the plate portion of the finding surface, and connects the connecting metal fitting and the finding surface in a state where the screw is not effective in the plate portion of the finding surface. The fitting according to any one of claims 1 to 3. The fitting according to any one of claims 1 to 4, wherein one connecting metal fitting is provided on the central side in the longitudinal direction of the frame.

Images