Doors and fittings

Abstract

To improve airtightness and heat insulation between a glass panel and a composite member in a composite fitting in which a metal member and a resin member are connected, even if the resin member is thermally contracted. [Solution] A sliding window 1 has an inner shoji screen 7 and an outer shoji screen 8, each equipped with double-glazed glass 9, housed within a frame 5. The stile 11 has a metal stile 11a on the outdoor side connected to a plastic stile 11b on the indoor side. The side ends of the double-glazed glass 9 are covered with a roughly U-shaped glazing channel 22, and are held in place by both sides 26b of a panel receiver 26 provided on the metal stile 11a. Pressing sections 26c are provided at the tip ends of each side 26b of the panel receiver 26 to press against the rising section 22b of the glazing channel 22 and the protrusion 25a of the tip fin section 25. On the indoor side, the metal stile 11a is covered with the plastic stile 11b, and the front protrusion 28 of the plastic stile 11b is sandwiched between the pressing section 26c and the protrusion 25a of the tip fin section to press against it.

Description

[Technical Field]

[0001] The present invention relates to various composite fittings, such as sliding windows and fixed windows, which have a frame body having a metal frame and a resin frame and house a shoji screen or glass panel inside. [Background technology]

[0002] Conventionally, a sliding window, such as that described in Patent Document 1, has been proposed as a composite fixture equipped with a frame made of metal such as aluminum and resin, and a shoji screen. This sliding window houses an outer shoji screen and an inner shoji screen within the frame, and the side edges of each side of the double-glazed glass of each shoji screen are covered with a glazing channel, which is pressed and held in place by a frame body consisting of an upper frame, a lower frame, and left and right vertical frames attached to the outside of the glazing channel. A glass groove made of a metal frame is attached to the outside of the glazing channel covering the side edges of the double-glazed glass, holding the glazing channel in place.

[0003] The glass groove of the metal frame has its outdoor side extending to press against the tip fin of the rising part of the glazing channel, and its indoor side abutting the lower part of the rising part of the glazing channel. Moreover, to ensure thermal insulation and design, a plastic frame that covers the metal frame is connected to the indoor side, and the side of the plastic frame extends to press against the tip fin of the rising part of the glazing channel. Therefore, in each shoji screen, the glazing channel that covers the side edges of the four sides of the double-glazed glass is held in place by the raised portions on both sides being pressed by metal frames and resin frames. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-67979 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in such sliding windows, the resin frame thermally shrinks due to changes in the outside temperature, causing the pressing position of the rising part of the glazing channel by the resin frame on the indoor side against the double-glazing glass to shift, creating a gap and reducing airtightness.This creates a risk that cold air and sound from the outdoors may enter through the gap between the glazing channel and the resin frame of the double-glazing glass on the indoor side. In addition, if a gap occurs at the joint between the resin vertical frame and the resin bottom frame due to thermal shrinkage, outside air and sound can flow in through the gap at the joint between the outdoor glazing channel and the glass panel, and outside air and sound can flow into the room through the gap between the indoor glazing channel and the resin frame mentioned above.

[0006] The present invention has been made in consideration of such problems, and aims to provide a composite fitting formed by connecting metal members and resin members, which improves the airtightness and thermal insulation between the glass panel and the composite member even if the resin member undergoes thermal shrinkage. [Means for solving the problem]

[0007] The composite fixture of the present invention is a composite fixture in which a glass panel is housed within a frame-shaped member assembled from composite members each connected to a metal member and a resin member, and is characterized by comprising a sealing material provided at least on the peripheral edge of the surface of the glass panel, a panel receiving portion of the metal member that presses against the sealing material on the outdoor and indoor sides to maintain airtightness, and a resin member that covers the indoor side portion of the metal member. According to the composite fitting of the present invention, in the composite member of the composite fitting that houses the glass panel, the sealing material provided on the peripheral portion of the surface of the glass panel is pressed by the panel receiving portion of the metal member, so that even if the resin member thermally shrinks due to changes in the outside air temperature, the metal member will not thermally shrink. Therefore, the flow of outside air and sound between indoors and outdoors can be prevented between the glass panel and the panel receiving portion of the metal member that sandwiches the sealing material, thereby ensuring airtightness.

[0008] Furthermore, it is preferable that the panel receiving portion of the metal member has a pressing portion that presses the sealing material, and that the pressing portion is formed continuously along the entire periphery of the side edge of the glass panel. This ensures airtightness around the entire periphery of the side edge of the glass panel.

[0009] In addition, it is preferable that the sealing material that presses against the glass panel has a protrusion that protrudes toward the indoor side, the resin member has a front protrusion that presses against the sealing material, and the pressing portion of the panel receiving part that presses against the sealing material is engaged with the protrusion of the sealing material by sandwiching the front protrusion of the resin member. In this case, even if the resin member undergoes thermal shrinkage, the tip protrusion of the resin member is clamped between the pressing portion of the panel receiving portion and the protrusion of the sealing material, so that thermal shrinkage of the resin member can be suppressed and the metal member can be prevented from being exposed to the indoor side.

[0010] Also, a first locking portion may be provided near the pressing portion of the panel receiving portion of the metal member, and a second locking portion that engages with the first locking portion may be provided near the leading projection of the resin member. On the indoor side of the composite fixture, the protrusion of the sealing material and the pressing part of the panel receiving part press and hold the front protrusion of the resin member, and the panel receiving part of the metal member and the resin member can further be held in place by engaging the first and second locking parts, so even if the resin member tries to thermally shrink, this is prevented by the double engagement structure, more reliably preventing the metal member from being exposed to the indoor side.

[0011] In the composite fixture of the present invention, the metal member is a metal frame, the resin member is a resin frame, and the frame-shaped member containing the glass panel is a shoji screen, so that the sealing material of the glass panel of the shoji screen and the metal frame can reliably achieve airtightness on the indoor side.

[0012] In the composite fixture of the present invention, the metal member is a metal frame, the resin member is a resin frame, and the frame-shaped member containing the glass panel is a fixed window, so that the sealing material of the glass panel of the fixed window and the metal frame can reliably achieve airtightness on the indoor side. [Effects of the Invention]

[0013] According to the composite fitting of the present invention, a glass panel is placed inside a frame-shaped member made of a composite material that connects metal members and resin members, and the sealing material provided on the peripheral edge of the surface of the glass panel is pressed by the panel receiving portion of the metal member to maintain airtightness, thereby ensuring airtightness between the indoor and outdoor areas that are sandwiched between the glass panel of the composite fitting. Moreover, since the indoor side of the metal member is covered with a resin member, there is an advantage in that heat insulation can be ensured and the exterior design is highly attractive. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a longitudinal cross-sectional view of a main portion of a sliding window according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a horizontal cross-sectional view of a main part of the sliding window shown in FIG. [Figure 3] FIG. 2 is an enlarged cross-sectional view of the bottom frame and bottom stile of the shoji screen of the sliding window shown in FIG. 1. [Figure 4] FIG. 3 is an enlarged cross-sectional view showing the vertical frame of the joining part of the sliding shoji screen shown in FIG. 2. [Figure 5] 1 is a partially broken oblique view of the joint between the bottom stile and vertical stile at the door edge of a sliding window according to the first embodiment. FIG. [Figure 6] An enlarged cross-sectional view of the bottom stile and bottom frame portion of a sliding window provided with sealing material according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a longitudinal cross-sectional view of a main portion of a fixed window according to a third embodiment of the present invention. [Figure 8] FIG. 8 is an enlarged cross-sectional view of the lower frame portion of the fixed window shown in FIG. 7. [Figure 9] FIG. 10 is a longitudinal cross-sectional view of a main portion of a fixed window according to a fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, composite fittings according to embodiments of the present invention will be described with reference to the accompanying drawings. A sliding window 1 as an example of a composite fixture according to a first embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 and 2, the sliding window 1 according to the first embodiment has an inner shoji screen 7 and an outer shoji screen 8 housed in a rectangular frame body 5 formed by an upper frame 2, a lower frame 3, and left and right vertical frames 4. The inner shoji screen 7 and the outer shoji screen 8 are each formed into a rectangular frame by an upper frame 10, a lower frame 11, and left and right vertical frames 12, 13, and house double-glazed glass 9, such as double glazing, housed inside.

[0016] In Figure 1, the upper frame 2 has a metal upper frame 2a installed on the outdoor side and a resin upper frame 2b connected to the indoor side, and the lower frame 3 has a metal lower frame 3a installed on the outdoor side and a resin lower frame 3b connected to the indoor side. Similarly, the left and right vertical frames 4 shown in Figure 2 have a metal vertical frame 4a installed on the outdoor side and a resin vertical frame 4b connected to the indoor side. The metal upper frame 2a, metal lower frame 3a, and metal vertical frame 4a are made of metal such as aluminum alloy. In the lower frame 3 shown in Figure 1, an outer rail 15 is installed on the outdoor side of the metal lower frame 3a, on which door rollers 14 provided at the bottom of the outer shoji screen 8 run. An inner rail 16 is installed on the indoor side of the metal lower frame 3a at a position one step higher than the outer rail 15, and supports door rollers 17 provided at the bottom of the inner shoji screen 7 so that they can run.

[0017] In the inner shoji screen 7, the upper frame 10 has a metal upper frame 10a on the outdoor side connected to a resin upper frame 10b on the indoor side, and the lower frame 11 has a metal lower frame 11a on the outdoor side connected to a resin lower frame 11b on the indoor side. Similarly, the left and right vertical frames 12 and 13 shown in Figure 2 have metal vertical frames 12a and 13a on the outdoor side connected to resin vertical frames 12b and 13b on the indoor side. These metal upper frame 10a, metal lower frame 11a, and metal vertical frames 12a and 13a are made of aluminum alloy or the like. Furthermore, the outer shoji screen 8 also has the same structure for the upper frame 10, lower frame 11, and left and right vertical frames 12 and 13, and the same reference numerals are used to omit the explanation. The vertical frame 12 is the frame on the door end side, and the vertical frame 13 is the frame at the joining part. A door roller 17 placed on an inner rail 16 is installed at the bottom of the metal bottom frame 11a of the inner shoji screen 7, and a door roller 14 placed on an outer rail 15 is installed at the bottom of the metal bottom frame 11a of the outer shoji screen 8.

[0018] Next, the airtight structure and airtight line between the double glazing 9 and the frame of the sliding window 1 according to the embodiment will be described using the structure of the bottom frame 11 shown in FIG. 3 as a representative example. In the inner shoji screen 7 shown in Figures 1 and 3, the double-glazed glass 9 supported by the inner shoji screen 7 has spacers 21 interposed at the four edge sides between two glass panels 20. The four side edge sides of the double-glazed glass 9 are continuously surrounded all around by a glazing channel 22 with a roughly U-shaped cross section. This glazing channel 22 is formed by a base 22a that abuts the end face of the double-glazing glass 9 and rising portions 22b that abut against both side edges (peripheral edges), and both rising portions 22b form fin portions 23 on the base 22a side, a flat portion 24, and a tip fin portion 25 at the tip, and the other end of tip fin portion 25 forms a protrusion 25a that protrudes on the opposite side from flat portion 24. These fin portions 23 and tip fin portion 25 airtightly seal the glazing channel 22 from both sides of the double-glazing glass 9 indoors and outdoors.

[0019] The metal lower frame 11a of the lower frame 11 has a panel receiving portion 26 with an approximately U-shaped cross section that surrounds the glazing channel 22, and a door roller holding portion 27 that holds the door roller 17 is connected to the underside of the panel receiving portion 26. In the panel receiving portion 26 of the metal stile 11a, the outdoor-side and indoor-side side portions 26b of the receiving portion 26a that face the base 22a of the glazing channel 22 each extend upward, and a thick pressing portion 26c is formed that abuts against the flat portion 24 formed on the rising portion 22b of the glazing channel 22 and the protrusion 25a of the tip fin portion 25. Moreover, on the indoor side, the front protrusion 28 of the resin stile 11b is fitted between the pressing portion 26c and the protrusion 25a, but the front protrusion 28 does not have to be sandwiched in between. As a result, the indoor-side rising portion 22b is pressed against the glass panel 20 by the pressing portion 26c and the front protrusion 28 of the panel receiving portion 26. Therefore, both rising portions 22b of the glazing channel 22 covering one end of the double glazing glass 9 are pressed and supported by the panel receiving portion 26 of the metal bottom frame 11a. Moreover, a space is formed between the base portion 22a of the glazing channel 22 and the receiving portion 26a of the panel receiving portion 26.

[0020] In addition, the resin stile 11b provided on the indoor side of the metal stile 11a is installed so as to cover the indoor side portion of the metal stile 11a and is connected to the metal stile 11a. The tip protrusion 28 of the resin stile 11b is sandwiched between the protrusion 25a of the tip fin portion 25 and the pressing portion 26c formed on the panel receiving portion 26 of the metal stile 11a at the rising portion 22b installed on the indoor side of the glazing channel 22. Therefore, the indoor-side pressing portion 26c of the panel receiving portion 26 presses against the protrusion 25a of the glazing channel 22 via the front-side protrusion 28 of the resin bottom frame 11b. In addition, the indoor-side side portion 26b of the panel receiving portion 26 branches off near the pressing portion 26c to form a locking receiving portion 29 that is bent into a substantially hook shape. The substantially L-shaped locking portion 28a that branches off from the front-side protrusion 28 of the resin bottom frame 11b engages with the locking receiving portion 29. The combined structure of the glazing channel 22 covering the end and side edges of the double glazing 9, the metal bottom frame 11a, and the resin bottom frame 11b is called a resin thermal shrinkage prevention structure 31A.

[0021] In the resin thermal shrinkage prevention structure 31, the resin lower frame 11b on the indoor side is pressed and clamped at its front protrusion 28 between the pressing portion 26c of the panel receiving portion 26 of the metal lower frame 11a and the protrusion 25a of the glazing channel 22, and is fixed by the engagement of the locking receiving portion 29 provided on the side portion 26b of the panel receiving portion 26 with the locking portion 28a of the front protrusion 28. Therefore, even if the resin bottom frame 11b expands or contracts due to heat, the front projection 28 and the locking portion 28a will not come off or shift from the metal bottom frame 11a, thereby suppressing the expansion and contraction displacement of the resin bottom frame 11b. Note that the front projection 28 of the resin bottom frame 11b is locked to the side portion 26b of the panel receiving portion 26 at two points, but it may be locked to one point. In addition, the upper frame 10 also has a resin thermal shrinkage prevention structure 31A with the same connecting structure.

[0022] 2 and 4 are horizontal cross-sectional views of the main part showing the connection structure between the left and right vertical frames 12, 13 of the inner shoji screen 7 and the outer shoji screen 8 and the double glazing 9. The resin thermal shrinkage prevention structure 31B of the left and right vertical frames 12, 13 of the inner shoji screen 7 basically has the same structure as the resin thermal shrinkage prevention structure 31A provided on the bottom frame 11. 2, the indoor side portion 26b of the panel receiving portion 26 of the outdoor metal vertical stile 12a has a pressing portion 33 that is roughly U-shaped and bent at the tip so as to press against the rising portion 22b of the glazing channel 22. The leading projection 28 of the resin vertical stile 12b is sandwiched and engaged between the pressing portion 33 and the projection 25a of the leading fin portion 25 of the glazing channel 22, pressing against the rising portion 22b. In addition, a locking portion 28a branching off from the leading projection 28 is configured to engage with the inside of the pressing portion 33. The metal vertical frames 12a, 13a and the resin vertical frames 12b, 13b of each vertical frame 12, 13 in the outer screen 8 also have the same resin thermal shrinkage prevention structure 31B.

[0023] 2 and 4, the vertical frame 13 on the joining side of the inner shoji screen 7 has a resin thermal shrinkage prevention structure 31C in which the indoor side portion 26b of the panel receiving portion 26 of the outdoor metal vertical frame 13a has a pressing member 35 on the rising portion 22b of the glazing channel 22 that is roughly bifurcated, with one pressing portion 35a pressing against the rising portion 22b of the glazing channel 22 and the other locking receiving portion 35b having a further bent tip. The tip of the leading projection 28 of the resin vertical frame 13b is sandwiched between the tip of the pressing portion 35a of the pressing member 35 and the projection 25a of the leading fin portion 25, pressing against the rising portion 22b of the glazing channel 22. The locking portion 28a branching off from the leading projection 28 is configured to engage with the locking receiving portion 35b of the pressing member 35.

[0024] In the inner shroud 7 and outer shroud 8 of the above-described embodiment, three types of resin thermal shrinkage prevention structures 31A, 31B, and 31C are provided, each with a different shape of the bending portion provided on the side portion 26b of the panel receiving portion 26, but any one type may be adopted. In addition, the glazing channel 22 made of an elastic material such as rubber and the panel receiving portion 26 made of an aluminum alloy are formed continuously at the ends of all four sides of the double-glazed glass 9, and the resin heat shrinkage prevention structures 31A, 31B, and 31C ensure airtightness both indoors and outdoors.

[0025] Figure 5 is a partial perspective view showing the connection structure between the vertical frame 12 and the bottom frame 11 on the door edge side of the inner shoji screen 7. A lap margin (not shown) is provided at the end of the metal bottom frame 11a, and it is fitted into the metal vertical frame 12a. On the indoor side of the metal vertical frame 12a, the lap margin (not shown) of the metal bottom frame 11a is fitted into the resin bottom frame 11b, and further, on the indoor side of the resin bottom frame 11b, the lap margin of the resin vertical frame 12b is fitted into the metal vertical frame 12a. Because of this fitting structure, even if the resin bottom frame 11b or the resin vertical frame 12b thermally shrinks, the thermal shrinkage is suppressed by the resin thermal shrinkage prevention structures 31, 31A, and 31B described above, so that a gap is formed between the resin bottom frame 11b and the resin vertical frame 12b, preventing the inner metal bottom frame 11a and the metal vertical frame 12a from being exposed. The same fitting structure is also used for the bottom frame 11 and the vertical frame 13 on the joining side. The same structure is also used for the outer shoji screen 8.

[0026] 1 and 3, the outer rail 15 of the bottom frame 11 of the outer shoji screen 8 is formed in a stepped position one step lower than the inner rail 16, so the roller holder 27 of the roller 14 is formed at the bottom of the receiving plate 37 formed below the panel receiving portion 26 of the metal bottom frame 11a. Also, the outdoor end of the metal bottom frame 3a of the bottom frame 3 is provided with a fin portion 32 that can abut against the metal bottom frame 11a near the roller holder 27 of the outer shoji screen 8. In addition, the metal upper frame 10a, metal lower frame 11a, and left and right metal vertical frames 12a and 13a that form each frame in the inner shoji screen 7 and the outer shoji screen 8 constitute a metal frame, while the resin upper frame 10b, resin lower frame 11b, and left and right resin vertical frames 12b and 13b constitute a resin frame.

[0027] The sliding window 1 according to this embodiment has the above-described configuration, and its operation will now be described. For example, in each of the sills 11 of the inner shoji screen 7 and outer shoji screen 8 shown in Figures 1 and 3, both indoor and outdoor side edges of the double glazing 9 are covered with a glazing channel 22, and both rising portions 22b are pressed by pressing portions 26c of each side portion 26b formed on the panel receiving portion 26 of each metal sill 11a. Moreover, in the rising portion 22b of the indoor-side glazing channel 22, the protrusion 25a on the opposite side of the tip fin portion 25 is pressed by the pressing portions 26c of both side portions 26b formed on the panel receiving portion 26 via the front protrusion 28 of the resin sill 11b, and the front protrusion 28 also presses the rising portion 22b.

[0028] Therefore, even if thermal contraction occurs in the resin sill 11b due to changes in the outside temperature, etc., the metal sill 11a made of aluminum or the like does not thermally contract. On the indoor side, the rising portion 22b of the glazing channel 22 is airtightly pressed against the double-glazing glass 9 by the pressing portion 26c of the panel receiving portion 26 and the front protrusion 28, so thermal contraction of the resin sill 11b is suppressed and no gaps are created. Therefore, outside air, sound, etc. will not leak into the indoor side through the gap between the double-glazing glass 9 and the rising portion 22b of the indoor-side glazing channel 22 and the resin sill 11b. Furthermore, not only in the resin thermal shrinkage prevention structure 31A in the inner shoji screen 7 and the outer shoji screen 8, but also in the resin thermal shrinkage prevention structures 31B and 31C, no gaps are created between the glazing channel 22 covering both side edges of the double-pane glass 9 and the resin upper frame 10b, or the left and right resin vertical frames 12b and 13b, so airtightness can be maintained.

[0029] Furthermore, the indoor-side leading protrusions 28 of the resin lower frame 11b, the resin upper frame 10b, and the left and right resin vertical frames 12b and 13b are sandwiched and pressed by the pressing portions 26c of the metal lower frame 11a, the metal upper frame 10a, and the left and right metal vertical frames 13a and the protrusions 25a of the tip fin portions 25, and since the locking receiving portions 29 of the side portions 26b are engaged with the locking portions 28a of the leading protrusions 28, thermal contraction of the resin lower frame 11b, the resin upper frame 10b, and the left and right resin vertical frames 12b and 13b can be suppressed. Therefore, thermal shrinkage of the resin bottom frame 11b, the resin top frame 10b, and the left and right vertical resin frames 12b and 13b in the widthwise direction as well as the lengthwise direction is suppressed. Even if the resin bottom frame 11b, the resin top frame 10b, and the left and right vertical resin frames 12b and 13b were to thermally shrink slightly in the lengthwise direction, causing gaps between the resin frames and exposing the metal frames, this would not affect airtightness.

[0030] As described above, the sliding window 1 according to this embodiment has the following advantages. (1) The rising portion 22b of the glazing channel 22 covering the side edges of the four sides of the double-glazed glass 9 is pressed by the pressing portion 26c provided on the side 26b of the panel receiving portion 26 of the metal frame to maintain airtightness, so that airtightness between the double-glazed glass 9 and the side 26b of the panel receiving portion 26 can be ensured even if the resin frame covering the metal frame undergoes thermal shrinkage. (2) In addition, the pressing portion 26c of the side portion 26b on the indoor side of the panel receiving portion 26 presses the protrusion 25a of the glazing channel 22 by sandwiching the tip protrusion 28 of the resin frame, thereby ensuring airtightness, and by covering the metal frame with the resin frame, the design can be improved.

[0031] (3) Furthermore, the pressing portion 26c on the indoor side of the panel receiving portion 26 clamps the front protrusion 28 of the resin frame between the protrusion 25a of the tip fin portion 25, and the locking receiving portion 29 of the rising portion 22b of the panel receiving portion 26 and the locking portion 28a of the front protrusion 28 of the resin frame are held in an engaged state, thereby suppressing thermal contraction of the resin frame and preventing the metal frame from being exposed on the indoor side. Therefore, even if the resin lower frame 11b, resin upper frame 10b, etc. shrink longitudinally due to thermal contraction, causing gaps to form at the corners where they are joined to the left and right resin vertical frames 12b, 13b, the airtightness indoors and outdoors will not be compromised.

[0032] The composite fixture according to the present invention is not limited to the sliding window 1 according to the first embodiment described above, and appropriate modifications and substitutions are possible within the scope of the gist of the present invention. Other embodiments and modifications of the present invention will be described below, and parts and members that are the same as or similar to those described in the above-described embodiments will be described using the same reference numerals.

[0033] For example, FIG. 6 shows a sliding window 1A according to a second embodiment of the present invention, and FIG. 6 shows a vertical cross-sectional view of the bottom frame 11 for explanation. In the sliding window 1A according to the second embodiment, no glazing channel 22 is installed on the side edge of the double glazing glass 9, and instead a sealing material 40 is used. That is, a panel receiving portion 26 having a roughly U-shaped cross section is formed on the metal bottom frame 11a of the bottom frame 11 of the inner shoji screen 7 so as to cover the side edge of the double glazing glass 9.

[0034] Elastic material 41 such as sponge is placed between the inner and outer surfaces of the double-glazed glass 9 and both side edges 26b of the panel receiving part 26, and sealant 40 is filled and hardened in the space between the inner and outer side edges of the double-glazed glass 9 and both side edges 26b of the panel receiving part 26. The sealant 40 may have an irregular or regular shape, and may be made of, for example, silicone, modified silicone, urethane, butyl, etc.

[0035] Furthermore, on the upper surface of the pressing portion 26c (contact portion) of the side portion 26b provided on the indoor side of the metal lower frame 11a, the front projection 28 formed on the upper end of the resin lower frame 11b extends toward the sealing material 40, and its tip abuts against the upper part of the pressing portion 26c. As a result, the sealing material 40 is airtightly pressed by the pressing portion 26c on the indoor side of the panel receiving portion 26 and the front projection 28. On the indoor side of the panel receiving portion 26, a locking portion 28a branching off from the front projection 28 is engaged with a locking receiving portion 29 formed on the side portion 26b of the panel receiving portion 26 and fixed. On the other hand, the outdoor side portion 26b of the panel receiving portion 26 is filled with a sealing material 40 so that the upper end portion is substantially flush with the pressing portion 26c.

[0036] This sealant 40 airtightly seals the space between the pressing portion 26c of the side portion 26b of the panel receiving portion 26 and the side edge of the double-glazed glass 9, and the side portion 26b of the panel receiving portion 26 installed on the indoor side is covered by the sealant 40 and the resin bottom frame 11b and is not exposed to the outside, resulting in a good design. Moreover, because the sealant 40 has higher insulating properties than the aluminum panel receiving portion 26, it can improve not only the airtightness between indoors and outdoors but also the insulating properties. This airtight structure using sealing material 40 is not only formed on the bottom frame 11, but also on the top frame 10 and the left and right vertical frames 12, 13, although not shown. The same structure is also formed on the outer frame 8 as well as the inner frame 7.

[0037] Next, a FIX window 44 will be described with reference to Figures 7 and 8 as a composite fixture according to a third embodiment of the present invention. Figure 7 shows a vertical cross section of a FIX window, with the frame 5 installed in a structural opening being formed into a rectangular frame shape by an upper frame 2, a lower frame 3, and left and right vertical frames 4 (not shown). In Figure 7, the upper frame 2 is composed of a metal upper frame 2a installed on the outdoor side and a resin upper frame 2b installed on the indoor side, connected together, and the lower frame 3 is composed of a metal lower frame 3a installed on the outdoor side and a resin lower frame 3b installed on the indoor side, connected together. The left and right vertical frames 4 have a similar configuration. For example, in the metal lower frame 3a shown in Figure 8, a panel receiving portion 45 with an approximately U-shaped cross section is formed to surround the end of the double-glazed glass 9, and both side portions 45b of the panel receiving portion 45 extend to the side edges on both sides of the double-glazed glass 9.

[0038] One side portion 45b rising on the outdoor side of panel receiving portion 45 has a pressing portion 45c formed at the tip, which is bent into, for example, a substantially L-shape, and a locking piece 45d formed on the base end side of the pressing portion 45c. One end of glazing channel 46 is fitted between pressing portion 45c and locking piece 45d, and the other end is pressed against the outdoor surface of double glazing 9. On the other hand, the other side portion 45b of the panel receiving portion 45 rising on the indoor side has a pressing portion 45c formed at the tip, which is bent, for example, into a substantially U-shaped cross section, and a locking receiving portion 49 formed on the opposite side at the base end side of the pressing portion 45c. Moreover, the upper portion of the aluminum alloy pressing portion 45c abuts against a tip-side protrusion 48 extending from the resin lower frame 3b.

[0039] The pressing portion 45c and the front projection 48 are fitted into and held in a recess 46a provided in the glazing channel 46, and the glazing channel 46 is airtightly pressed against the side edge of the double-glazed glass 9 by the pressing portion 45c and the front projection 48. In addition, the locking portion 28a branching off from the resin tip protrusion 48 engages with the locking receiving portion 49 branching off and protruding from the side portion 45b of the metal lower frame 3a, thereby engaging the resin lower frame 3b with the indoor side portion 45b of the panel receiving portion 45.

[0040] This creates an airtight seal between the double-glazed glass 9 and the pressing portion 45c of the panel receiving portion 45 of the metal sill 3a via the glazing channel 46. Furthermore, the pressing portion 45c on the side portion 45b of the aluminum panel receiving portion 45 does not thermally shrink. Furthermore, the leading protrusion 48 is clamped between the pressing portion 45c and the recess 46a of the glazing channel 46, and the locking portion 49 engages with the locking portion 28a of the leading protrusion 48. This prevents thermal shrinkage of the indoor-side resin sill 3b due to changes in the outside temperature, etc. Furthermore, even if thermal shrinkage of the resin sill 3b or the resin vertical sill occurs at the corners of the joint between the resin sill 3b and the resin vertical sill, this thermal shrinkage can be suppressed. Even if a gap occurs due to thermal shrinkage, the airtightness is not affected by the sealing structure described above. Such a sealing structure is formed not only in the lower frame 3 but also in the upper frame 2 and the left and right vertical frames 4 that keep the double glazing 9 airtight.

[0041] Next, a fixed window 50 according to a fourth embodiment of the present invention will be described with reference to FIG. The FIX window shown in Figure 9 has the same basic configuration as the third embodiment shown in Figures 7 and 8. In this fourth embodiment, instead of the glazing channel 46, a sealant 40 is filled between both side surfaces of the double-glazed glass 9 and the pressing portions 45c on both side portions 45b of the panel receiving portion 45 formed on the metal lower frame 3a. This allows the sealing material 40 to ensure airtightness between the pressing portion 45c on the side portion 45b of the aluminum panel receiving portion 45, the front protrusion 48 of the resin lower frame 3b, and the double-glazed glass 9. Furthermore, the front protrusion 48 of the resin lower frame 3b is fixed to the sealing material 40 together with the pressing portion 45c, thereby suppressing thermal contraction. Such a resin thermal shrinkage prevention structure is also adopted between the upper frame 10 and the left and right vertical frames 12, 13 and the double glazing 9.

[0042] In the sliding windows 1, 1A and fixed windows 44, 50 according to the above-described embodiments, the double glazing 9 constitutes a glass panel having one or more glass panels 20. One of the locking receiving portion 29 provided on the metal panel receiving portion 26 and the locking portion 28a provided on the resin front projection 28 is a first locking portion, and the other is a second locking portion. Also included in the encapsulation are the glazing channels 22, 46 and the sealant 40.

[0043] In the first and second embodiments described above, the metal upper frame 10a, metal lower frame 11a, and left and right metal vertical frames 12a, 13a that form each metal frame in the inner shoji screen 7 and outer shoji screen 8 constitute metal members, while the resin upper frame 10b, resin lower frame 11b, and left and right resin vertical frames 12b, 13b that form the resin frame constitute resin members. Similarly, in the third and fourth embodiments described above, the metal upper frame 2a, metal lower frame 3a, and left and right metal vertical frames 4a that form each metal frame in the frame body 5 constitute metal members, while the resin upper frame 2b, resin lower frame 3b, and left and right resin vertical frames 4b that form the resin frame constitute resin members. Furthermore, the sliding window 1 with the above-mentioned metal frame and resin frame and the fixed windows 44, 50 with metal frames and resin frames constitute composite fixtures, but it goes without saying that the composite fixtures according to the present invention are not limited to the sliding window 1 and the fixed windows 44, 50, and can also be used in, for example, vertical sliding windows, terrace doors, horizontal sliding windows, etc. [Explanation of symbols]

[0044] 1, 1A Sliding window 2 Upper frame 2a Metal upper frame 2b Resin upper frame 3 Bottom frame 3a Metal lower frame 3b Resin lower frame 4 Vertical Frame 4a Metal vertical frame 4b Resin vertical frame 5 Frame 7 Inner Shoji Screen 8. Outer Shoji Screen 9. Double-glazed windows 10 Upper stile 10a metal top stile 10b Resin top stile 11 Lower stile 11a Metal lower stile 11b Resin lower frame 12, 13 Vertical frame 12a, 13a metal stiles 12b, 13b Resin vertical frame 22, 46 Glazing Channel 22b Rising part 25 Tip fin 25a Protrusion 26, 45 Panel receiving part 26b, 45b side 26c, 33, 35a, 45c Pressing part 28, 48 Tip protrusion 28a Locking part 29, 35b Locking receiving portion 40 Sealant 44, 50 Fixed windows

Claims

1. A joinery in which an inner shoji screen and an outer shoji screen are housed within a frame formed by an upper frame, a lower frame, and left and right vertical frames, Glass panels are installed in the aforementioned inner and outer sliding doors. The lower frame of the aforementioned outer sliding door comprises a metal lower frame and a resin lower frame. The lower frame has a horizontal piece at the lower part of the resin lower frame, On the outdoor side of the horizontal piece, the fin portion and the metal lower frame are in contact. The resin lower frame has a hanging portion that extends downward toward the metal lower frame. A door or window fixture in which the hanging portion and the metal bottom frame are positioned to overlap in the vertical direction.

2. The joinery according to claim 1, wherein the metal lower frame and the hanging part are in contact.

3. The joinery according to claim 1 or 2, wherein the resin lower frame is in contact with a glazing channel or sealing material.

4. The joinery according to any one of claims 1 to 3, wherein the four side edges of the glass panel are surrounded by glazing channels or sealing material.

5. The metal lower frame has a panel receiving portion, The panel receiving portion of the metal lower frame has sides that extend upward on the outdoor side and the indoor side. The outdoor side of the aforementioned metal lower frame is provided with a pressing portion that contacts the fin-like tip of the glazing channel. The joinery according to any one of claims 1 to 4, wherein a resin lower frame is provided between the indoor panel receiving portion and the glazing channel.

6. The joinery according to claim 5, wherein the resin lower frame has a leading projection that is sandwiched between the glazing channel and the panel receiving portion of the metal lower frame.

7. The joinery according to claim 5, wherein the resin lower frame has a leading projection that is sandwiched between the projection of the glazing channel and the pressing portion of the panel receiving portion on the outdoor side of the metal lower frame.

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