Fitting

Abstract

To improve drainage of water generated by condensation on an indoor side while ensuring fire prevention performance.SOLUTION: A fitting includes a panel and a frame member 14 having a panel holding portion 200 that supports the panel. The panel holding portion 200 includes a base 100, an outdoor facing portion 62e that protrudes from the base 100 and faces the outdoor surface of the panel, and an indoor facing portion 62f that protrudes from the base 100 and faces the indoor surface of the panel. The indoor facing portion 62f is provided with a drainage hole 62q that connects the panel holding space 48c, which is surrounded by the base 100, the outdoor facing portion 62e, and the indoor facing portion 62f, to a space inside the room beyond the indoor facing portion 62f. On the upper surface of the base 100 facing the panel holding space 48c, at least a portion of the first thermal expansion member HE1 is located within a projection area Ar obtained by projecting the drainage hole 62q in the forward direction when viewed from above, and the first thermal expansion member HE1 expands when heated.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fitting.

Background Art

[0002] Conventionally, a fitting including a panel and a frame member having a panel holding portion for supporting the panel has been known (see, for example, Patent Document 1). In the fitting described in Patent Document 1, a drain hole is formed in the panel holding space in the panel holding portion for discharging rainwater or the like that has entered the panel holding space to the outside of the frame member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, if a drain hole communicating the panel holding space and the space on the indoor side of the panel holding space is provided in the panel holding portion, water generated by condensation on the indoor side of the frame member can be drained to the outside (outdoor) through the drain hole. However, considering the spread of fire through the drain hole during a fire, it is difficult to provide the drain hole. Therefore, there is a demand for a technique that can improve the drainage of water generated by condensation on the indoor side while ensuring fire prevention performance.

[0005] An object of the present invention is to provide a fitting that can improve the drainage of water generated by condensation on the indoor side while ensuring fire prevention performance in view of the above circumstances.

Means for Solving the Problems

[0006] In order to achieve the above object, the fitting according to the present invention includes a panel and a frame member having a panel holding portion for supporting the panel. The panel holding portion includes a base portion, an outdoor finding portion that protrudes from the base portion and faces the outdoor surface of the panel, and an indoor finding portion that protrudes from the base portion and faces the indoor surface of the panel. The indoor finding portion is provided with a drain hole that communicates a panel holding space surrounded by the base portion, the outdoor finding portion, and the indoor finding portion with a space on the indoor side of the indoor finding portion. On the upper surface of the base portion facing the panel holding space, at least a part is located within a projection area obtained by projecting the drain hole in the looking-in direction when the upper surface is viewed from the upper side, and a first thermally expandable member that expands by being heated is provided.

Effect of the Invention

[0007] According to the fitting according to the present invention, it is possible to improve the drainage property of water generated by condensation on the indoor side while ensuring fire resistance performance.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments of the fitting according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by this embodiment.

[0010] Hereinafter, for convenience, the terms "prospective direction" and "finding direction" may be used. The prospective direction (the direction indicated by the arrow Z in the figure) is the indoor-outdoor direction along the depth of the fitting. For a surface or wall along the prospective direction, it may be referred to as a prospective surface or prospective wall. The finding direction is the direction along the up and down perpendicular to the prospective direction (the direction indicated by the arrow Y in the figure) in the case of something extending along the horizontal direction such as an upper frame, a lower frame, an upper sash, a lower sash, etc., and is the direction along the horizontal perpendicular to the prospective direction (the direction indicated by the arrow X in the figure) in the case of something extending along the vertical direction such as a vertical frame, a vertical sash, etc. For a surface or wall along the finding direction, it may be referred to as a finding surface or finding wall.

[0011] 〔Schematic configuration of the fitting〕 FIG. 1 is a longitudinal sectional view of a fitting 10 according to an embodiment. FIG. 2 is a cross-sectional view of the fitting 10. However, since the fitting 10 is basically symmetric in shape, only the left side portion is shown in FIG. 2. The fitting 10 according to the present embodiment is a retrofit fitting in which a new frame 14 is provided on the inner peripheral side of an existing frame 12, and is what is called a FIX window in which a panel 16 such as a multilayer glass is held on the inner peripheral side of the new frame 14. In the fitting 10, the construction cost can be reduced by not removing the existing frame 12. Each frame member of the existing frame 12 is an extruded member made of a metal such as an aluminum alloy and is configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction. Also, the frame members of the new frame 14 are also extruded members and are configured to have a substantially uniform cross-sectional shape over the entire length, but are a composite material of a metal member on the outdoor side and a resin member on the indoor side.

[0012] The existing frame 12 is configured by forming a four-sided assembly of an existing upper frame 18, an existing lower frame 20, and left and right existing vertical frames 22. Also, the new frame 14 is configured by forming a four-sided assembly of a new upper frame 24, a new lower frame 26, and left and right new vertical frames 28. The new frame 14 has a vertical-lapping structure. This new frame 14 corresponds to the frame member according to the present invention. Hereinafter, the configuration of the new frame 14 will be described sequentially for each frame member 24, 26, 28.

[0013] 〔Configuration of the new vertical frame〕 The newly installed vertical frame 28 has an outdoor metal frame 30, a first resin frame 32 and a second resin frame 34 on the indoor side. An edge pressing 36 is attached to the newly installed vertical frame 28. The metal frame 30 has an outdoor hollow portion 30a that is long in the prospective direction, an outdoor finding portion 30b that protrudes toward the inner peripheral side, and a prospective piece 30c that extends toward the indoor side. The tip of the outdoor finding portion 30b supports the edge of the outdoor surface of the panel 16 via a pocket portion and a bead 37.

[0014] The hollow portion 30a and the prospective piece 30c have substantially the same length in the prospective direction. Substantially all of the hollow portion 30a protrudes outside the existing vertical frame 22. On the inner peripheral side closer to the indoor side of the hollow portion 30a, a first engaging portion 30d and a second engaging portion 30e for engaging with the edge pressing 36 are provided. The first engaging portion 30d and the second engaging portion 30e are in an L shape protruding toward the side closer to each other. The first engaging portion 30d is on the outdoor side and the outer peripheral side of the second engaging portion 30e. On the indoor finding wall of the hollow portion 30a, a third engaging portion 30f for engaging with the first resin frame 32 is provided. At the end of the prospective piece 30c, a fourth engaging portion 30g for engaging with the first resin frame 32 is provided. The prospective piece 30c is fixed to the prospective wall of the existing vertical frame 22 by screws (fasteners) 42 via a spacer 38 and a base member 40. The base member 40 extends to the indoor side and is fixed to the existing vertical frame 22 by screws 45. The base member 40 and the base members 54 and 80 described later are made of an aluminum alloy material or a stainless steel material and are of high strength.

[0015] The first resin frame 32 has a hollow portion 32a that is elongated in the prospective direction as a base, a prospective piece 32b that protrudes toward the outdoor side, a relay piece 32c that protrudes toward the indoor side, and an engaging piece 32d that protrudes toward the outer peripheral side. An engaging piece 32e protrudes outside the hollow portion 32a. The tip of the prospective piece 32b is bent and engages with the third engaging portion 30f. A screw insertion hole through which the screw 42 passes is formed in the prospective piece 32b, but it is covered by the edge pressing 36 and is not visible. The tip of the engaging piece 32d engages with the fourth engaging portion 30g.

[0016] The second resin frame 34 has an irregular L shape, and the short side portion of the L shape is screwed to the relay piece 32c. The long side portion of the L shape extends toward the outer peripheral side and closes the space between the existing frame 12 or the housing. A plurality of folding grooves 34a are provided in this L-shaped portion. By folding any one of the folding grooves 34a, the distance from the existing frame 12 or the housing can be adjusted. A gap blocking member 43 is provided adjacent to the tip of the second resin frame 34. The second resin frame 34 functions as a frame.

[0017] 〔Configuration of the pressing edge〕 The pressing edge 36 has a metal pressing edge 44 on the outdoor side and a resin pressing edge 46 on the indoor side. The metal pressing edge 44 and the resin pressing edge 46 are strongly engaged with each other at the engaging portions of L shape and angular U shape. The metal pressing edge 44 has a fixing piece 44a extending obliquely toward the outdoor side. The tip of the fixing piece 44a is engaged with the first engaging portion 30d, and the recess formed at the end is engaged with the second engaging portion 30e. The resin pressing edge 46 has a substantially square cross section and is partitioned into two rooms arranged in the finding direction. From the indoor side of the resin pressing edge 46, an engaging piece 46a projects toward the outer peripheral side and is engaged with the engaging piece 32e.

[0018] A part of each of the metal pressing edge 44 and the resin pressing edge 46 of the pressing edge 36 forms a finding portion 36a. The inner peripheral side end portion of the finding portion 36a supports the edge of the indoor surface of the panel 16 via the bead 37. A panel holding space 48 surrounded by the prospective wall of the hollow portion 30a, the outdoor side finding portion 30b, and the finding portion 36a is formed. The finding portion 36a serves as the indoor side finding portion of the panel holding space 48. Note that the panel holding space 48 is formed to communicate over the four sides between the new frame 14 and the edge of the panel 16. The panel holding space 48 at the location facing the new vertical frame 28 is also referred to as the panel holding space 48a.

[0019] 〔Configuration of the new upper frame〕 The newly installed upper frame 24 has an outdoor metal frame 50, a first resin frame 52 and a second resin frame 34 on the indoor side. The metal frame 50 has an outdoor hollow portion 50a that is long in the prospective direction, an outdoor finding portion 50b that protrudes from the outdoor end of the hollow portion 50a to the inner peripheral side, an indoor finding portion 50c that protrudes from the vicinity of the indoor end of the hollow portion 50a to the inner peripheral side, and a prospective piece 50d that extends indoors. The tip of the outdoor finding portion 50b supports the edge of the outdoor surface of the panel 16 via the pocket portion and the bead 37. The tip of the indoor finding portion 50c supports the edge of the indoor surface of the panel 16 via a part of the first resin frame 52 and the bead 37. That is, at this location, the panel holding space 48 is formed surrounded by the hollow portion 50a, the outdoor finding portion 50b, and the indoor finding portion 50c. The panel holding space 48 at this location is also called the panel holding space 48b. The panel holding space 48b has an appropriate width in the prospective direction so that the panel 16 can be assembled in a Kendon style.

[0020] The hollow portion 50a and the prospective piece 50d have substantially the same length in the prospective direction. The hollow portion 50a protrudes outside the existing upper frame 18. An engaging portion 50e for engaging with the first resin frame 52 is provided at the end of the prospective piece 50d. The prospective piece 50d is fixed to the prospective wall of the existing upper frame 18 by screws 42 via a spacer 38 and a base member 54. The base member 54 extends to the indoor side and is fixed to the existing upper frame 18 by screws 45.

[0021] The first resin frame 52 has an elongated hollow portion 52a in the prospective direction as a base, a prospective piece 52b that protrudes outside, a relay piece 52c that protrudes inside, and an engaging piece 52d that protrudes from the indoor end to the outer peripheral side. The tip of the prospective piece 52b is bent and engaged so as to mesh with the tip of the indoor finding portion 50c. The engaging piece 52d is engaged with the engaging portion 50e. The relay piece 52c is screwed to the second resin frame 34. The second resin frame 34 is the same as the above, but has a different length due to the folding of the folding groove 34a. Two screw insertion holes through which the screws 42 pass are formed in the hollow portion 52a, but the screw insertion hole on the inner peripheral side prospective surface is blocked by a cap 56.

[0022] The hollow portion 50a is partitioned by a partition wall 50f into an outdoor-side chamber 50g and an indoor-side chamber 50h. The outdoor-side chamber 50g is slightly narrower in prospect width than the indoor-side chamber 50h. In the hollow portion 50a, a screw hole 58 is provided at the lower part of the partition wall 50f. The screw hole 58 is a portion where a screw 60 (see the virtual line in FIG. 2) for joining the newly installed vertical frame 28 and the newly installed upper frame 24 is screwed, and is for joining the vertical frames. Since the newly installed frame 14 is a vertical winner, the newly installed upper frame 24 is fixed by screwing the screw 60 passing through the newly installed vertical frame 28 into the screw hole 58. The screw hole 58 has a C shape and opens downward. That is, the screw hole 58 has an opening communicating with the panel holding space 48b. All the arc walls other than the opening forming the screw hole 58 are within the range of the hollow portion 50a and do not protrude into the panel holding space 48b.

[0023] The screw hole 58 is located outside the outdoor-side finding surface of the existing upper frame 18, and water may enter through the screw 60 and the screw hole 58. However, since the screw hole 58 provided in contact with the hollow portion 50a opens into the panel holding space 48b on the inner peripheral side, there is no water intrusion into the inside of the hollow portion 50a, and means such as a drain valve are not required for the hollow portion 50a. Thus, in the fitting 10, water intrusion into the hollow portion 50a can be prevented with a simple and low-cost configuration. The water that has entered the panel holding space 48b is drained to the outside through the panel holding space 48a, the panel holding space 48c described later, and the drain hole 62m. Since the screw hole 58 is provided on the inner peripheral-side prospect wall of the metal frame 50, the distance to the panel 16 is relatively short, which is suitable for the framework.

[0024] 〔Configuration of the newly installed lower frame〕 The newly installed lower frame 26 has an outdoor-side metal frame 62, and an indoor-side first resin frame 64 and second resin frame 34. This metal frame 62 corresponds to the metal member according to the present invention. Also, the first and second resin frames 64, 34 correspond to the resin members according to the present invention.

[0025] First, the first resin frame 64 will be described. The first resin frame 64 has a hollow portion 64a as a base, a projecting piece 64b projecting to the outdoor side, a relay piece 64c projecting to the indoor side, and an engaging piece 64d projecting from the indoor side end to the outer peripheral side. The tip of the projecting piece 64b is bent and engaged so as to mesh with the tip of the indoor side finding portion 62f. The engaging piece 64d is engaged with the engaging portion 62j. The relay piece 64c is screwed to the second resin frame 34. The second resin frame 34 is the same as the above, but has different lengths due to the folding of the folding groove 34a. The hollow portion 64a is partitioned by a partition wall into a relatively large outdoor side chamber 64e and a relatively small indoor side chamber 64f. A shallow recess 64g is formed on the upper surface of the hollow portion 64a. A drain hole 64h (hatched in FIG. 1) is formed at the lower part of the hollow portion 64a.

[0026] Next, the metal frame 62 will be described. The metal frame 62 has a relatively large first hollow portion 62a and a relatively small second hollow portion 62b adjacent to the inner peripheral side of the first hollow portion 62a. The first hollow portion 62a is large and has sufficient strength to support the self-weight of the panel 16 and the like. The indoor side finding surfaces of the first hollow portion 62a and the second hollow portion 62b are continuous, but from the outdoor side, the second hollow portion 62b is located deeper than the first hollow portion 62a.

[0027] The metal frame 62 further has an indoor side projecting piece 62c where the inner peripheral side wall of the second hollow portion 62b extends to the indoor side, an outdoor side projecting piece 62d extending to the outdoor side, an outdoor side finding portion 62e projecting from the outdoor side end of the outdoor side projecting piece 62d to the inner peripheral side, an indoor side finding portion 62f projecting from the middle of the indoor side projecting piece 62c to the inner peripheral side, a finding support piece 62g projecting from the middle of the indoor side projecting piece 62c to the outer peripheral side, a finding support piece 62h projecting from the vicinity of the boundary portion between the first hollow portion 62a and the second hollow portion 62b in the second hollow portion 62b to the indoor side, and a fixing piece 62i projecting in an L shape from the lower end of the first hollow portion 62a toward the indoor side. The finding support piece 62g is moderately long and its tip is located on the extension of the finding support piece 62h. The finding support piece 62g is on the extension of the indoor side finding portion 62f. The finding support piece 62h is short. An engaging portion 62j for engaging with the first resin frame 64 is provided at the end of the indoor side projecting piece 62c.

[0028] The tip of the outdoor finding part 62e supports the edge of the outdoor surface of the panel 16 via the pocket part and the bead 37. The tip of the indoor finding part 62f supports the edge of the indoor surface of the panel 16 via a part of the first resin frame 64 and the bead 37. That is, at this location, the panel holding space 48 is formed surrounded by the inner peripheral side wall of the second hollow part 62b, the indoor looking-in piece 62c, the outdoor looking-in piece 62d, the outdoor finding part 62e, and the indoor finding part 62f. The panel holding space 48 at this location is also called the panel holding space 48c. The panel 16 is supported by the setting block 66 within the panel holding space 48c. That is, the inner peripheral side wall of the second hollow part 62b, the indoor looking-in piece 62c, and the outdoor looking-in piece 62d correspond to the base 100 according to the present invention. And the base 100, the outdoor finding part 62e, and the indoor finding part 62f correspond to the panel holding part 200 according to the present invention.

[0029] An outdoor communication space 62k that opens to the outdoor side is formed by the inner peripheral side wall of the first hollow part 62a, the outdoor wall of the second hollow part 62b, and the outdoor looking-in piece 62d. The outdoor looking-in piece 62d is provided with a drain hole 62m (hatched in FIG. 1) that communicates with the outdoor communication space 62k. At the tip of the outdoor looking-in piece 62d, there is a small downward protruding piece 62n so that the drain hole 62m is not conspicuous.

[0030] In the first hollow portion 62a, a screw hole 68 is provided at the lower part of the outdoor wall 62o of the second hollow portion 62b. The screw hole 68 is a portion where a screw 70 (see the virtual line in FIG. 2) for joining the newly installed vertical frame 28 and the newly installed lower frame 26 is screwed, and is for joining the vertical frames. Since the newly installed frame 14 is a vertical winner, the newly installed lower frame 26 is fixed by screwing the screw 70 passing through the newly installed vertical frame 28 into the screw hole 68. The screw hole 68 has the same C shape as the above-described screw hole 58 and opens downward. That is, the screw hole 68 has an opening communicating with the first hollow portion 62a. All the arc walls forming the screw hole 68 are within the range of the first hollow portion 62a and do not protrude into the second hollow portion 62b and the outdoor communication space 62k. Note that the screw hole 68 and the above-described screw hole 58 are in overlapping positions in plan view, and the screw 70 and the above-described screw 60 are in overlapping positions in plan view.

[0031] Returning to FIG. 1, the connection and fixing between the existing lower frame 20 and the newly installed lower frame 26 will be described. In the cross section of FIG. 1, the metal frame 62 is connected and fixed to the newly installed lower frame 26 at two locations (however, a plurality of locations are fixed along the longitudinal direction of the frame material). One location is the L-shaped tip of the fixing piece 62i, which is fixed to the prospective wall at the lower end of the newly installed lower frame 26 by a screw 79.

[0032] The other location is the location of the indoor prospective piece 62c, which is a part of the prospective wall in the panel holding space 48c, and is indirectly connected and fixed by a screw 42 via a base member 80. The base member 80 has an L shape composed of a first side portion 80a forming a long side in the finding direction and a second side portion 80b forming a short side in the prospective direction. The screw 42 fixes the metal frame 62 by screwing through the indoor prospective piece 62c into the second side portion 80b. A plurality of screws 42 are provided at positions avoiding the setting block 66.

[0033] The first side portion 80a is in contact with the outdoor finding wall 20b in the existing lower frame 20, and this portion is fixed by a screw 82. In this embodiment, there is a pocket 20c on the indoor side of the outdoor finding wall 20b, and the screw 82 is screwed from the outdoor finding wall 20b to the pocket 20c.

[0034] The first side portion 80a and the outdoor finding wall 20b have their inner peripheral ends coinciding. The first side portion 80a is slightly longer than the outdoor finding wall 20b on the outer peripheral side. The second side portion 80b protrudes outward from the inner peripheral end portion of the first side portion 80a, and its tip abuts against the indoor finding wall 62p. The tip of the finding support piece 62g abuts against the indoor side end portion of the second side portion 80b, and the prospective support piece 62h abuts against the upper surface of the outdoor side end portion, stably supporting the metal frame 62 in the prospective direction and the finding direction.

[0035] The head of the screw 42 is exposed within the panel holding space 48c, but since the panel holding space 48c is not visible from the indoor and outdoor sides, the head is not visually recognized either. For the connection and fixation of the existing lower frame 20 and the new lower frame 26, similar to the connection and fixation of the existing upper frame 18 and the new upper frame 24, screw through holes may be provided in the resin frame portion, fixed by the screw 42 at the back, and then the screw through holes may be blocked by the cap 56. However, the first resin frame 64 of the new lower frame 26 is in a relatively visible position, and moreover, a plurality of screws 42 need to be provided along the longitudinal direction of the frame material, which makes them conspicuous. Therefore, it is desirable to make them invisible by using the panel holding space 48c. Thereby, a suitable design can be maintained.

[0036] Also, the panel holding space 48c is a location that receives a relatively large load due to the wind pressure of the panel 16. In this embodiment, it has a sufficiently short connection path through the screw 42 and the base member 80 up to the existing lower frame 20, enabling reliable load support at the existing lower frame 20 and improving the wind resistance. Also, although the panel holding space 48c receives the self-weight of the panel 16, the existing lower frame 20 can reliably support this self-weight due to the short connection path.

[0037] The base member 80 is preferably applied in a form in which the second side portion 80b protrudes from the first side portion 80a toward the outdoor direction, and the panel holding space 48c and the hollow portions 62a and 62b are arranged on the outdoor side of the existing lower frame 20. However, depending on the conditions, the second side portion 80b may protrude toward the indoor side. Further, depending on the conditions, the base member 80 may be omitted, and the panel holding space 48c may be directly connected and fixed to the existing lower frame 20 with screws 42.

[0038] 〔Regarding the drainage structure and the fire prevention structure〕 FIG. 3 is a diagram for explaining the drainage structure and the fire prevention structure. Specifically, FIG. 3 is a view of the new lower frame 26 seen from above. Next, with reference to FIG. 3, the drainage structure and the fire prevention structure of the water generated by condensation on the indoor side will be described. The indoor finding portion 62f is provided with drainage holes 62q that communicate the panel holding space 48c and the space on the indoor side of the indoor finding portion 62f. More specifically, the drainage holes 62q are provided on both the left and right sides of the indoor finding portion 62f. Further, drainage valves 71 are provided in the two drainage holes 62q, respectively.

[0039] Then, the water that has entered the recess 64g due to condensation on the indoor side follows the drainage path of the recess 64g - drainage valve 72 - drainage hole 64h - drainage hole 62q - drainage valve 71 - panel holding space 48c - drainage hole 62m - outdoor communication space 62k and is drained to the outside (outdoor).

[0040] Further, in consideration of the spread of fire through the drainage holes 62q during a fire, a first thermally expandable member HE1 (hatched in FIGS. 1 and 3) is provided on the inner surface facing the panel holding space 48c in the panel holding portion 200. This first thermally expandable member HE1 is a non-combustible or flame-retardant fire-resistant member that expands by heat, and is, for example, a heat-expandable material such as graphite that foams when heated.

[0041] The first thermally expandable member HE1 is provided in two numbers corresponding to the two drain holes 62q. The first thermally expandable member HE1 is provided at a position where at least a part thereof is located within a projection area Ar obtained by projecting the drain hole 62q in the looking-in direction on the upper surface facing the panel holding space 48c in the base 100, when viewed from above. This first thermally expandable member HE1 mainly has a function of closing the drain hole 62q by foaming during a fire.

[0042] In addition to the first thermally expandable member HE1, second and third thermally expandable members HE2, HE3 (hatched in FIGS. 1 and 3) are provided on the inner surface facing the panel holding space 48c in the panel holding portion 200. The second and third thermally expandable members HE2, HE3 are incombustible or flame-retardant fireproof members that expand by heat, such as a heat-expandable material like graphite that foams by heating, similar to the first thermally expandable member HE1. Here, the first and third thermally expandable members HE1, HE3 are configured to expand at a lower temperature (for example, about 200°C) than the second thermally expandable member HE2.

[0043] The second thermally expandable member HE2 is provided in a region avoiding the two drain holes 62q over substantially the entire length of the outdoor-facing surface facing the panel holding space 48c in the indoor-side finding portion 62f. This second thermally expandable member HE2 has a function of closing the panel holding space 48c by foaming during a fire. Note that the second thermally expandable member HE2 is also provided on the inner surfaces constituting the panel holding spaces 48a and 48b in addition to the inner surface constituting the panel holding space 48c.

[0044] The third thermally expandable member HE3 is provided over substantially the entire length of the indoor-facing surface facing the panel holding space 48c in the outdoor-side finding portion 62e. This third thermally expandable member HE3 mainly has a function of closing the drain hole 62m by foaming during a fire.

[0045] (Other embodiments) So far, the embodiments for carrying out the present invention have been described, but the present invention should not be limited only by the above-described embodiments. In the above-described embodiment, the fitting 10 according to the present invention was a refitted fitting, but it is not limited thereto, and it may be configured with a normal fitting without refitting. Further, the fitting 10 according to the present invention was configured with a FIX window, but it is not limited thereto, and it may be configured as various fittings such as a sliding window, a single-sliding window, a projecting window, and a raising and lowering window. When configured in this way, the above-described drainage structure and fireproof structure may be provided in the frame that supports the panel. Further, when the panel is supported using a bead, the drainage hole according to the present invention may be provided in the bead. The frame and the bead correspond to the frame member according to the present invention.

[0046] The fitting according to the present invention includes a panel and a frame member having a panel holding portion that supports the panel. The panel holding portion includes a base portion, an outdoor-side finding portion that protrudes from the base portion and faces the outdoor surface of the panel, and an indoor-side finding portion that protrudes from the base portion and faces the indoor surface of the panel. The indoor-side finding portion is provided with a drainage hole that communicates a panel holding space surrounded by the base portion, the outdoor-side finding portion, and the indoor-side finding portion with a space on the indoor side of the indoor-side finding portion. On the upper surface of the base portion facing the panel holding space, at least a part is located within a projection region obtained by projecting the drainage hole in the looking-in direction when the upper surface is viewed from the upper side, and a first thermally expandable member that expands when heated is provided.

[0047] In the present invention, the indoor-side finding portion is provided with a drainage hole. Therefore, water generated by condensation on the indoor side can be drained to the outside (outdoor) through a drainage path including the drainage hole and the panel holding space. Further, on the upper surface of the base portion facing the panel holding space, a first thermally expandable member is provided so that at least a part is located within a projection region obtained by projecting the drainage hole in the looking-in direction when the upper surface is viewed from the upper side. Therefore, when a fire occurs, the first thermally expandable member expands to block the drainage hole, and the spread of fire through the drainage hole can be suppressed. Therefore, according to the fitting of the present invention, while ensuring fire resistance performance, it is possible to improve the drainage of water generated by condensation on the indoor side.

[0048] Further, in the fitting described above, the present invention is characterized in that on the inner surface facing the panel holding space in the panel holding portion, a second thermally expandable member that expands when heated is provided, and the first thermally expandable member expands at a lower temperature than the second thermally expandable member. In the present invention, the second thermally expandable member described above is provided on the inner surface facing the panel holding space in the panel holding portion. For this reason, the first thermally expandable member can be given the function of closing the drain hole during a fire, and the second thermally expandable member can be given the function of closing the panel holding space, and sufficient fire resistance performance can be ensured.

[0049] Further, in the fitting described above, the present invention is characterized in that the fitting is a FIX window. By configuring the fitting according to the present invention as a FIX window, it is possible to preferably realize the effect of improving the drainage of water generated by condensation on the indoor side while ensuring the above-described fire resistance performance.

[0050] Further, in the fitting described above, the present invention is characterized in that the frame member is composed of a metal member on the outdoor side and a resin member on the indoor side. In the present invention, since the frame member is composed of a metal member on the outdoor side and a resin member on the indoor side, heat insulation between the indoor and outdoor can be ensured, and condensation on the indoor side itself can be suppressed.

Explanation of Reference Numerals

[0051] 10 Fitting, 14 Newly installed frame (frame member), 34 Second resin frame (resin member), 48c Panel holding space, 62 Metal frame (metal member), 62e Outdoor side finding portion, 62f Indoor side finding portion, 62q Drain hole, 64 First resin frame (resin member), 100 Base portion, 200 Panel holding portion, Ar Projection area, HE1 First thermally expandable member, HE2 Second thermally expandable member

Claims

1. a panel, and a frame member having a panel holding portion for supporting the panel, wherein the panel holding portion includes a base portion, an outdoor finding portion that protrudes from the base portion and faces the outdoor surface of the panel, and an indoor finding portion that protrudes from the base portion and faces the indoor surface of the panel, wherein the indoor finding portion is provided with a drain hole that communicates a panel holding space surrounded by the base portion, the outdoor finding portion, and the indoor finding portion with a space on the indoor side of the indoor finding portion, wherein on the upper surface of the base portion facing the panel holding space, a first thermally expandable member is provided, at least a part of which is located within a projection area obtained by projecting the drain hole in a sighting direction when the upper surface is viewed from above, and which expands when heated The fixture is characterized by the above.

2. On the inner surface of the panel holding portion facing the panel holding space, a second thermally expandable member that expands when heated is provided, wherein the first thermally expandable member expands at a lower temperature than the second thermally expandable member The fixture according to claim 1, characterized by the above.

3. The fixture is a FIX window The fixture according to claim 1, characterized by the above.

4. The frame member is composed of an outdoor metal member and an indoor resin member The fixture according to claim 1, characterized by the above.

Images