Door and window frame structures and fittings

The fitting frame structure addresses installation complexity by using a single-member connection with spacers for efficient frame assembly and improved thermal insulation, overcoming positional challenges and enhancing construction efficiency.

JP7814207B2Active Publication Date: 2026-02-16LIXIL CORP
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Patent Information

Application Number
JP2022045647
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-22
Publication Date
2026-02-16
Estimated Expiration
2042-03-22

AI Technical Summary

Technical Problem

Conventional door and window frame structures face challenges in direct fixation due to varying positional relationships, necessitating complex on-site assembly with multiple components, which affects workability.

Method used

A fitting frame structure comprising a frame body, indoor member, and an attachment with integrated outdoor and indoor fixing parts, utilizing a single member connection and incorporating spacers with lower thermal conductivity to facilitate efficient installation and improve thermal insulation.

Benefits of technology

Enables efficient construction by allowing direct connection of frames at the construction site, even with challenging positional relationships, while enhancing thermal insulation and reducing heat transfer and condensation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a fitting frame structure that has good workability and connects a frame body and an indoor member.SOLUTION: A fitting frame structure includes a frame body, an indoor member placed indoors, and an attachment placed across the frame body and the indoor member on an outside in the width direction. The attachment has an outdoor fixing part 35 fixed to the frame, an indoor fixing part 33 fixed to the indoor member, and a connecting part 34 connecting the outdoor fixing part 35 and the indoor fixing part 33, and comprises a first sealing part 41 that is composed of one member and covers an area where a metal lower frame 12A and a resin lower frame 12B meet from the outside in the width direction with a sealing material.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present disclosure relates to a door and window frame structure. and fittings It is related to. [Background technology]

[0002] Conventionally, the frame of a resin composite fitting is configured by connecting a metal frame placed on the indoor side with a resin frame placed on the indoor side. The indoor end of the resin frame is fixed to the frame with fixing bolts (for example, see Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-122331 Summary of the Invention [Problem to be solved by the invention]

[0004] Depending on the positional relationship between the fixture and the frame in the indoor and outdoor directions, it may not be possible to fix the frame directly to the frame, in which case it is necessary to prepare components to connect the frame and the frame at the construction site, or to connect the frame and the frame via multiple components by connecting multiple components in the indoor and outdoor directions in sequence. For this reason, improvements in workability are desired.

[0005] The present disclosure has been made in consideration of the above circumstances, and provides a fitting frame structure that is easy to install and connects a frame body and an indoor component. and fittings to provide. [Means for solving the problem]

[0006] A fitting frame structure according to one aspect of the present disclosure includes a frame body, an indoor member disposed indoors, and an attachment disposed across the frame body and the indoor member on the outside in the view direction, the attachment having an outdoor-side fixing part fixed to the frame body, an indoor-side fixing part fixed to the indoor member, and a connecting part connecting the outdoor-side fixing part and the indoor-side fixing part, and is composed of a single member. The frame body has a spacer arranged between the frame body side fixing portion of the frame body to which the outdoor side fixing portion is fixed and the outdoor side fixing portion, the thermal conductivity of the spacer being lower than the thermal conductivity of the outdoor side fixing portion and the frame body side fixing portion, the frame body has a metal lower frame made of metal and a resin lower frame made of resin connected to the indoor side of the metal lower frame, and a space surrounded by the lower part of the metal lower frame, the resin lower frame, the attachment and the spacer is formed. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a vertical cross-sectional view of the fitting according to the first embodiment. [Figure 2] FIG. 2 is a horizontal cross-sectional view of the fitting according to the first embodiment. [Figure 3] FIG. 2 is an enlarged view of part III in FIG. [Figure 4] FIG. 10 is an enlarged view of a portion where a spacer is disposed. [Figure 5] 1A and 1B are diagrams showing the assembly of the attachment for the fitting according to the first embodiment. [Figure 6] FIG. 10 is an enlarged view of a portion where a spacer of a fitting according to a second embodiment is arranged. [Figure 7] FIG. 10 is an enlarged view of a portion where a spacer of a fitting according to a third embodiment is arranged. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) A fitting according to a first embodiment will be described below with reference to the drawings. The following embodiment illustrates one aspect of the present disclosure, does not limit the present disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure. In the following description, the direction connecting the outdoor side (the +Y side shown in FIG. 1, etc.) and the indoor side (the -Y side shown in FIG. 2, etc.) along the horizontal direction will be referred to as the indoor-outdoor direction (the direction of arrow Y in the figures). The direction perpendicular to the indoor-outdoor direction and along the horizontal direction will be referred to as the width direction (the direction of arrow X in the figures). The direction perpendicular to the indoor-outdoor direction and the width direction will be referred to as the up-down direction (the direction of arrow Z in the figures). In each component, the side away from the center in the indoor-outdoor direction and the width direction will sometimes be referred to as the outside, and the side toward the center will sometimes be referred to as the inside.

[0009] As shown in Figure 1, the fitting 100 comprises a fitting frame structure 1 and a fitting main body (not shown). The fitting main body is, for example, two shoji screens, and is installed so as to be able to slide in the width direction inside the fitting frame structure 1. The fitting 100 is installed at the opening of the bathroom.

[0010] The door and window frame structure 1 has a frame body 10, a frame body 20, and an attachment 30. The frame body 10 is formed in a four-sided frame shape. The frame body 10 has an upper frame 11, a lower frame 12, and vertical frames 13, 13 (see Figure 2).

[0011] The upper frame 11 and the lower frame 12 extend in the width direction. The vertical frame 13 (see Figure 2) extends in the up-down direction. The upper ends of the vertical frames 13, 13 are connected to each other by the upper frame 11. The lower ends of the vertical frames 13, 13 are connected to each other by the lower frame 12.

[0012] The upper frame 11 has a metal upper frame 11A made of metal and a resin upper frame 11B made of resin connected to the indoor side of the metal upper frame 11A. The lower frame 12 has a metal lower frame 12A made of metal and a resin lower frame 12B made of resin connected to the indoor side of the metal lower frame 12A. As shown in Figure 2, the vertical frame 13 has a metal vertical frame 13A made of metal and a resin vertical frame 13B made of resin connected to the indoor side of the metal vertical frame 13A.

[0013] As shown in FIG. 1, the frame body 20 is fixed to the framework of a building or the like. The frame body 20 is placed in the indoor space of the building. The frame body 20 is formed in a four-sided frame shape. The frame body 20 has an upper frame 21, a lower frame 22, and vertical frames 23, 23 (see FIG. 2). The frame body 20 corresponds to the indoor component in the claims.

[0014] The upper frame 21 and the lower frame 22 extend in the width direction. The vertical frame 23 (see FIG. 2) extends in the up-down direction. The upper ends of the vertical frames 23, 23 are connected to each other by the upper frame 21. The lower ends of the vertical frames 23, 23 are connected to each other by the lower frame 22.

[0015] The attachment 30 is formed in a four-sided frame shape. The attachment 30 has an upper attachment 30A, a lower attachment 30B, and vertical attachments 30C, 30C (see FIG. 2). The attachment 30 is made of metal.

[0016] The upper attachment 30A and the lower attachment 30B extend in the width direction. The vertical attachment 30C (see FIG. 2) extends in the up-down direction. The upper ends of the vertical attachments 30C, 30C are connected to each other by the upper attachment 30A. The lower ends of the vertical attachments 30C, 30C are connected to each other by the lower attachment 30B.

[0017] The attachment 30 is arranged straddling the frame body 10 and the frame body 20 on the outside in the find direction. The upper attachment 30A is arranged straddling the upper frame 11 and the upper frame 21 on the upper side, which is the outside in the find direction. The lower attachment 30B is arranged straddling the lower frame 12 and the lower frame 22 on the lower side, which is the outside in the find direction. As shown in FIG. 2, the vertical attachment 30C is arranged straddling the vertical frame 13 and the vertical frame 23 on the outside in the width direction, which is the outside in the find direction.

[0018] The fixing structure between the lower frame 12 and the lower frame 22 will now be described. As shown in Fig. 3, the metal lower frame 12A is located on the indoor side and has a frame body side fixing portion 121 that extends along the vertical and width directions. A protrusion 122 that protrudes toward the outdoor side is provided at the upper end of the frame body side fixing portion 121. A first locking receiving portion 123 that protrudes toward the outdoor side is provided at the top of the frame body side fixing portion 121. A second locking receiving portion 124 that protrudes toward the indoor side is provided at the top of the frame body side fixing portion 121.

[0019] Resin lower frame 12B has a lower plate portion 126 that is generally horizontal. A first locking portion 127 that extends downward is provided at the outdoor end of lower plate portion 126. First locking portion 127 is locked between protrusion 122 and first lock receiving portion 123 of metal lower frame 12A.

[0020] A second locking portion 128 extending downward is provided at a portion slightly closer to the indoor side than the outdoor end of the lower plate portion 126. The second locking portion 128 is locked to a second lock receiving portion 124 of the metal lower frame 12A.

[0021] Lower plate portion 126 is provided with a hanging wall portion 129 extending downward. Hanging wall portion 129 has an upper wall portion 129a and a lower wall portion 129b. Upper wall portion 129a extends vertically downward from lower plate portion 126. Lower wall portion 129b is gradually inclined toward the outdoors as it extends downward from the lower end of upper wall portion 129a.

[0022] A lower end 129c of the lower wall 129b abuts against a connecting portion 121c on a surface 121a facing the indoor side of the frame-side fixing portion 121. A first seal portion 41 is provided at the point where the lower end 129c of the lower wall 129b abuts against the connecting portion 121c of the frame-side fixing portion 121. The first seal portion 41 is covered with a sealing material from the bottom side, which is the outside in the viewing direction. The first seal portion 41 is provided over substantially the entire length of the lower frame 12 in the width direction.

[0023] The lower attachment 30B has a support plate portion 31, a hanging plate portion 32, an indoor fixing portion 33, a connecting portion 34, and an outdoor fixing portion 35. The support plate portion 31, the hanging plate portion 32, the indoor fixing portion 33, the connecting portion 34, and the outdoor fixing portion 35 of the lower attachment 30B are not joined together, and are formed from a single member. The lower attachment 30B is formed, for example, by extruding an aluminum section.

[0024] The support plate 31 is formed in a plate shape. The plate surface of the support plate 31 faces the vertical direction. The support plate 31 is disposed below the lower plate 126 of the resin lower frame 12B. Screws 126a are inserted into mounting holes 126b formed in the lower plate 126 and are screwed into the screw holes 31a of the support plate 31.

[0025] 5, a downwardly recessed first screw hole 311 is formed in the upper surface of the support plate portion 31. The first screw hole 311 is formed over substantially the entire length of the support plate portion 31. The first screw hole 311 opens upward.

[0026] 3, hanging plate portion 32 extends downward from the indoor-side end of support plate portion 31. Hanging plate portion 32 is formed in a plate shape. The plate surface of hanging plate portion 32 faces the indoor / outdoor direction.

[0027] The indoor-side fixing portion 33 extends indoors from the lower end of the hanging plate portion 32. The indoor-side fixing portion 33 is formed in a plate shape. The plate surface of the indoor-side fixing portion 33 faces the vertical direction.

[0028] The lower frame 22 has a lower frame main body 221 that is generally horizontal. A lower frame hanging plate 222 that extends downward is provided at the outdoor-facing end of the lower frame main body 221. A lower frame fixing plate 223 that extends outdoor is provided at the lower end of the lower frame hanging plate 222.

[0029] A recess 22s recessed downward is formed by the hanging plate portion 32 of the lower attachment 30B, the lower frame fixing plate portion 223 of the lower frame 22, and the lower frame hanging plate portion 222.

[0030] The screws 223a are inserted from the recesses 22s into the mounting holes 223b of the lower frame fixing plate portion 223, and are screwed into the screw holes 33a of the indoor side fixing portion 33 of the lower attachment 30B.

[0031] In recess 22s, backing material 22a is provided above screw 223a to fill the gap between hanging plate portion 32 of lower attachment 30B and lower frame hanging plate portion 222 of lower frame 22. On the upper side of backing material 22a, sealing portion 22b filled with sealing material is provided to fill the gap between hanging plate portion 32 of lower attachment 30B and the indoor-side end of lower plate portion 126 of resin lower frame 12B and lower frame hanging plate portion 222 of lower frame 22.

[0032] The connecting portion 34 is provided at the lower end of the hanging plate portion 32. The connecting portion 34 is formed in a plate shape. The upper surface of the connecting portion 34 faces upward and toward the outdoors. The connecting portion 34 is gradually inclined toward the outdoors as it extends downward. The connecting portion 34 connects the indoor-side fixing portion 33 and the outdoor-side fixing portion 35.

[0033] A second screw hole 341 that protrudes downward and opens downward and indoors is formed on the underside of the connecting portion 34. As shown in Fig. 5, the second screw hole 341 is formed over substantially the entire length of the connecting portion 34 in the longitudinal direction.

[0034] 3, the outdoor-side fixing part 35 extends downward from the lower end of the connecting part 34. The outdoor-side fixing part 35 is formed in a plate shape. The plate surface of the outdoor-side fixing part 35 faces the indoor / outdoor direction.

[0035] The outdoor-side fixing portion 35 is disposed on the indoor side of the frame-side fixing portion 121 of the metal lower frame 12A with a gap therebetween. As shown in FIG. 4, a spacer 16 is provided between the outdoor-side fixing portion 35 and the frame-side fixing portion 121 of the metal lower frame 12A to fill the gap. The spacer 16 is made of resin. The thermal conductivity of the spacer 16 is lower than that of the metal lower frame 12A and the lower attachment 30B. The spacers 16 are disposed at multiple locations with intervals in the longitudinal direction of the metal lower frame 12A. The spacer 16 is disposed below the first seal portion 41.

[0036] The screw 35 a is inserted into the mounting hole 35 b of the outdoor-side fixing part 35 , passes through the spacer 16 , and is screwed into the screw hole 121 b of the frame-side fixing part 121 .

[0037] 3, in the area where the spacer 16 is not installed, a second seal portion 42 filled with a sealant is provided between the outdoor-side fixing portion 35 and the frame-side fixing portion 121. The second seal portion 42 is disposed below the first seal portion 41.

[0038] Space s1 is formed by the hanging wall portion 129 of the resin lower frame 12B, the portion below the connection portion 121c of the frame body side fixing portion 121 of the metal lower frame 12A, the second seal portion 42, the connecting portion 34 of the lower attachment 30B, the hanging plate portion 32 and the support plate portion 31.

[0039] As shown in Figure 4, space s1 is formed by the hanging wall portion 129 of the resin lower frame 12B, the portion below the connection portion 121c of the frame body side fixing portion 121 of the metal lower frame 12A, the spacer 16, the connecting portion 34 of the lower attachment 30B, the hanging plate portion 32 and the support plate portion 31.

[0040] As shown in FIG. 1, the upper attachment 30A has a configuration in which the lower attachment 30B is turned upside down, and the same reference numerals are used to denote the upper attachment 30A and the description thereof will be omitted.

[0041] As shown in FIG. 2, the vertical attachment 30C has a support plate portion 31C, an outdoor-side fixing portion 35C, a first bent plate portion 36, and a second bent plate portion 37.

[0042] The support plate portion 31C is formed in a plate shape. The plate surface of the support plate portion 31C faces the width direction. The indoor side portion of the support plate portion 31C is disposed on the outer side of the vertical frame 23 in the width direction. The support plate portion 31C may be fixed to the vertical frame 23.

[0043] The outdoor-side fixing portion 35C extends outward in the width direction from the outdoor-side end of the support plate portion 31C. The outdoor-side fixing portion 35C is formed in a plate shape. The plate surface of the outdoor-side fixing portion 35C faces the indoor-outdoor direction. The outdoor-side fixing portion 35C is arranged at a distance on the indoor side of the frame-side fixing portion 131 that is aligned with the width direction of the vertical metal frame 13A. Spacers (not shown) are arranged at a distance in the vertical direction between the outdoor-side fixing portion 35C and the frame-side fixing portion 131. In areas where no spacers are arranged, second seal portions 42 are provided between the outdoor-side fixing portion 35C and the frame-side fixing portion 131. The outdoor-side fixing portion 35C and the frame-side fixing portion 131 are fixed with screws 35a.

[0044] The first bent plate portion 36 extends inward in the width direction from the middle of the support plate portion 31C in the indoor / outdoor direction. The second bent plate portion 37 extends outward from the inner end of the first bent plate portion 36 in the width direction. The second bent plate portion 37 is fixed with screws 126a to a frame body side fixing portion 132 that is aligned with the indoor / outdoor direction of the vertical resin frame 13B.

[0045] 5, the screw 30a is inserted through an attachment hole 313 formed in the support plate portion 31C of the vertical attachment 30C and is screwed into the first screw hole 311 of the lower attachment 30B. The screw 30b is inserted through an attachment hole 314 formed in the support plate portion 31C of the vertical attachment 30C and is screwed into the second screw hole 341 of the lower attachment 30B.

[0046] In the fitting 100 configured in this manner, the lower attachment 30B is configured as a single member, with an outdoor-side fixing portion 35 fixed to the sill 12 and an indoor-side fixing portion 33 fixed to the bottom frame 22 connected by a connecting portion 34. Even if the sill 12 and bottom frame 22 are in a positional relationship at the construction site where they cannot be directly fixed together, by positioning the lower attachment 30B so that it straddles the bottom of the sill 12 and bottom frame 22, fixing the outdoor-side fixing portion 35 to the sill 12, and fixing the indoor-side fixing portion 33 to the bottom frame 22, the sill 12 and bottom frame 22 are connected via the lower attachment 30B, and the sill 12 and bottom frame 22 can be connected with good construction efficiency.

[0047] The thermal conductivity of the spacer 16 provided between the frame-side fixing part 121 of the metal lower frame 12A and the outdoor-side fixing part 35 of the lower attachment 30B is lower than the thermal conductivity of the outdoor-side fixing part 35 and the frame-side fixing part 121. The spacer 16 suppresses heat transfer from the frame-side fixing part 121 of the lower frame 12A to the outdoor-side fixing part 35 of the lower attachment 30B, thereby improving thermal insulation.

[0048] Where second seal portion 42 is provided, space s1 is formed by hanging wall portion 129 of resin lower frame 12B, the portion of frame-side fixing portion 121 of metal lower frame 12A below connecting portion 121c, second seal portion 42, connecting portion 34 of lower attachment 30B, hanging plate portion 32, and support plate portion 31. Where spacer 16 is provided, space s1 is formed by hanging wall portion 129 of resin lower frame 12B, the portion of frame-side fixing portion 121 of metal lower frame 12A below connecting portion 121c, spacer 16, connecting portion 34 of lower attachment 30B, hanging plate portion 32, and support plate portion 31. Because the thermal conductivity of the air layer is low, the formation of space s1 can suppress condensation on lower attachment 30B.

[0049] A first seal 41 covered with a sealant from below is provided at the contact point between surface 121a of frame-side fixing portion 121 of metal lower frame 12A and lower end 129c of lower wall portion 129b of resin lower frame 12B. Water seeping in from the connection point between metal lower frame 12A and resin lower frame 12B can be stopped by first seal 41 at the contact point between metal lower frame 12A and resin lower frame 12B.

[0050] The second seal portion 42 is disposed below the first seal portion 41. When the water-tightness of the first seal portion 41 decreases due to aging and water passes through the first seal portion 41, the water is stored in the space s1 and can be stopped by the second seal portion 42.

[0051] In the lower attachment 30B, the screw hole 341 for the screw 30b that connects to the vertical attachment 30C is formed in the underside of the connecting portion 34. If the screw hole were formed in the upper side of the connecting portion 34, when water W (see FIG. 5) that has passed through the first seal portion 41 is present, the water W may pass through the screw hole and drip downward along the vertical attachment 30C from the contact surface between the widthwise end of the lower attachment 30B and the vertical attachment 30C. Because the screw hole 341 is formed in the underside of the connecting portion 34, the water does not pass through the screw hole 341, and leakage from the contact surface between the widthwise end of the lower attachment 30B and the vertical attachment 30C can be suppressed.

[0052] Second Embodiment The fittings according to the second embodiment will be described mainly with reference to Fig. 6. In the embodiments described below, the same reference numerals may be used to designate components corresponding to those in the above-described embodiments, and the description thereof may be omitted.

[0053] 6, the outdoor-side portion of the indoor-side fixing part 33D of the lower attachment 30D is disposed below the lower plate part 126 of the resin lower frame 12B. The outdoor-side portion of the indoor-side fixing part 33D supports the lower plate part 126.

[0054] The indoor side portion of the indoor side fixing portion 33D is disposed below the lower frame body 221D of the lower frame 22D. The lower frame body 221D and the indoor side portion of the indoor side fixing portion 33D are fixed together with screws 221a.

[0055] The connecting portion 34D extends downward from the middle of the indoor-side fixing portion 33D in the indoor-outdoor direction, and gradually extends downward from the middle toward the outdoor side.

[0056] The outdoor-side fixing part 35 extends downward from the lower end of the connecting part 34D. A spacer 16 is provided between the outdoor-side fixing part 35 and the frame-side fixing part 121 of the metal lower frame 12A. The outdoor-side fixing part 35 and the frame-side fixing part 121 are fixed together with screws 35a.

[0057] In a fixture configured in this manner, the lower attachment 30D is composed of a single member, with the outdoor-side fixing portion 35 fixed to the sill 12 and the indoor-side fixing portion 33D fixed to the bottom frame 22D connected by the connecting portion 34D. Even if the positional relationship at the construction site makes it impossible to directly fix the sill 12 and the bottom frame 22D, by positioning the lower attachment 30B so that it straddles the sill 12 and the bottom frame 22D at their lower sides, fixing the outdoor-side fixing portion 35 to the sill 12, and fixing the indoor-side fixing portion 33D to the bottom frame 22D, the sill 12 and the bottom frame 22D are connected via the lower attachment 30B, and the sill 12 and the bottom frame 22D can be connected with good construction efficiency.

[0058] (Third embodiment) The fittings according to the third embodiment will be described mainly with reference to Fig. 7. As shown in Fig. 7, the lower frame body 221E of the lower frame 22E is disposed above the indoor-side fixing part 33 of the lower attachment 30B. The lower frame body 221E and the indoor-side fixing part 33 are fixed together by screws 221b.

[0059] In a fitting configured in this manner, the lower attachment 30B is configured as a single member, with an outdoor-side fixing portion 35 fixed to the sill 12 and an indoor-side fixing portion 33 fixed to the bottom frame 22E connected by a connecting portion 34. Even if the positional relationship at the construction site makes it impossible to directly fix the sill 12 and the bottom frame 22E, by positioning the lower attachment 30B so that it straddles the bottom of the sill 12 and the bottom frame 22E, and fixing the outdoor-side fixing portion 35 to the sill 12 and the indoor-side fixing portion 33 to the bottom frame 22E, the sill 12 and the bottom frame 22E are connected via the lower attachment 30B, it is possible to connect the sill 12 and the bottom frame 22E with good construction efficiency.

[0060] While preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0061] In the first embodiment, the fitting 100 is provided with the first seal portion 41 and the second seal portion 42, but this is not limited to this. The first seal portion 41 and the second seal portion 42 do not have to be provided.

[0062] Spacers 16 are provided between the frame body side fixing parts 121 of the metal lower frame 12A and the outdoor side fixing parts 35 of the lower attachment 30B, but this is not limiting. The outdoor side fixing parts 35 may be arranged so as to contact the indoor side of the frame body side fixing parts 121 and fixed with screws. [Explanation of symbols]

[0063] 1 Door and window frame structure, 10 Frame body, 11 Upper frame, 12 Lower frame, 12A Metal lower frame, 12B Resin lower frame, 13 Vertical frame, 16 Spacer, 30 Attachment, 30A Upper attachment, 30B, 30D Lower attachment, 30C Vertical attachment, 33 Indoor side fixing part, 34, 34D Connection part, 35, 35C Outdoor side fixing part, 41 First seal part, 42 Second seal part, 100 Door and window frame, 121 Frame body side fixing part, 131 Frame body side fixing part, 341 Second screw hole

Claims

1. A frame body, an indoor member to be placed indoors; an attachment arranged across the frame body and the indoor member on the outside in the viewing direction; The attachment is an outdoor fixing portion fixed to the frame body; an indoor fixing portion fixed to the indoor member; a connecting portion that connects the outdoor-side fixing portion and the indoor-side fixing portion, and is configured as a single member, a spacer provided between a frame body side fixing portion of the frame body to which the outdoor side fixing portion is fixed and the outdoor side fixing portion, the thermal conductivity of the spacer is lower than the thermal conductivity of the outdoor-side fixing portion and the frame-side fixing portion, The frame body is A metal lower frame and a resin lower frame made of resin connected to the indoor side of the metal lower frame, A door and window frame structure in which a space is formed surrounded by the lower part of the metal lower frame, the resin lower frame, the attachment, and the spacer.

2. The door frame structure according to claim 1, further comprising a first sealing portion that covers the contact point between the metal lower frame and the resin lower frame from the outside in the viewing direction with a sealing material.

3. a second seal portion that fills a gap between the frame-side fixing portion and the outdoor-side fixing portion with a sealant; The door and window frame structure according to claim 2 , wherein the second seal portion is disposed below the first seal portion.

4. The connecting portion of the lower attachment of the attachment fixed to the lower frame of the frame body is formed with a screw hole into which a screw connected to the vertical attachment of the attachment fixed to the vertical frame of the frame body is screwed, The door frame structure according to claim 1 , wherein the screw holes are formed on the underside of the connecting portions.

5. A fitting frame structure according to any one of claims 1 to 4, A shoji screen is installed inside the door frame structure.

Citation Information

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