Fitting

Abstract

To provide fittings which prevent a screw hole in a transom from being covered with water.SOLUTION: The fitting 10A includes a frame body 12 for supporting upper and lower panels 14, and a transom 13 provided between right and left vertical frames 20 in the frame body 12 to partition the upper and lower panels 14. The transom 13 has an outdoor side hollow part side 56b, an indoor side hollow part side 56c and an intermediate hollow part side 56b between the outdoor side hollow part side 56c and the indoor side hollow part side 56a along the longitudinal direction of the transom 13. An upper drain hole 56a is formed in an upper 56aa 56k of the intermediate hollow portion 56ad, and a lower drain hole 56m is formed in a lower wall inner wall of the intermediate hollow portion inner wall. The outdoor side hollow part side 56b and the indoor side hollow part side 56c have a screw hole 54 partially opened by a cutout side 54a for joining with the vertical frame 20 by a screw.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a fixture having a transom separating an upper window from a lower window. [Background technology]

[0002] There is known a fitting with a transom that is installed between the left and right vertical frames of a frame body and separates an upper window from a lower window. In the fitting shown in Patent Document 1, the hollow part of the transom is provided with screw holes for joining to the vertical frame with screws. This hollow part also serves as a drainage path for draining water from above to below. The hollow part in Patent Document 1 has a small projected width compared to its height. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 6-54885 Summary of the Invention [Problem to be solved by the invention]

[0004] In fittings such as those described in Patent Document 1, water passes through the hollow portion having the screw holes, so there is a concern that the screw holes will become wet and water will enter the vertical frame.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a fixture in which screw holes in the lattice are not exposed to water. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the objectives, the building fixture of the present invention is a building fixture comprising a frame body supporting an upper window and a lower window, and a mould separating the upper window and the lower window, wherein the mould has an outdoor hollow section along the longitudinal direction of the mould, an indoor hollow section, and an intermediate hollow section between the outdoor hollow section and the indoor hollow section, wherein an upper drainage hole is formed in the upper wall of the intermediate hollow section and a lower drainage hole is formed in the lower wall, and the outdoor hollow section and the indoor hollow section have screw holes for joining them to the vertical frame of the frame body with screws. [Effects of the Invention]

[0007] In the building fixture of the present invention, screw holes are provided in the outdoor hollow section and the indoor hollow section for joining the vertical frame with screws, and the intermediate hollow section between these is used as a water flow path, preventing the screw holes in the outdoor hollow section and the indoor hollow section from becoming wet. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a view of a fitting according to a first embodiment of the present invention as seen from the inside of a room. [Figure 2] 1 is a vertical cross-sectional view of a fitting according to a first embodiment of the present invention. [Figure 3] FIG. 1 is a cross-sectional view of a fitting according to a first embodiment of the present invention. [Figure 4] A vertical cross-sectional view of the lower frame and its surrounding area. [Figure 5] FIG. [Figure 6] This is a vertical cross-sectional view of the eyelet and its surrounding area. [Figure 7] FIG. 10 is a view of a fitting according to a second embodiment of the present invention as seen from the inside of a room. [Figure 8] FIG. 10 is a vertical cross-sectional view of a fitting according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a view of a fitting according to a third embodiment of the present invention as seen from the inside of a room. [Figure 10] FIG. 10 is a vertical cross-sectional view of a fitting according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the fittings according to the present invention will be described in detail with reference to the drawings, however, the present invention is not limited to the embodiment.

[0010] For convenience, the terms "visible direction" and "visible wall" may be used below. The visible direction (the direction indicated by arrow Z in the figure) is the indoor / outdoor direction along the depth of the fittings 10A, 10B, and 10C. Surfaces and walls along the visible direction may be called "visible surface" or "visible wall." The visible direction is the direction perpendicular to the visible direction (the direction indicated by arrow Y in the figure) for elements that extend horizontally, such as upper frames, lower frames, upper stiles, and lower frames, and the direction perpendicular to the visible direction (the direction indicated by arrow X in the figure) for elements that extend vertically, such as vertical frames and vertical stiles. Surfaces and walls along the visible direction may be called "visible surface" or "visible wall."

[0011] FIG. 1 shows a view of a fitting 10A, a first embodiment of the present invention, from the interior side. The fitting 10A is a stepped, fixed window with a frame 12 installed in a building opening, a transom 13, and an upper panel (upper window) 14 and a lower panel (lower window) 15 held within the frame 12 and transom 13. The upper panel 14 and lower panel 15 are made of double-glazed glass or the like. The same applies to panels 78 and 106, described below. The frame 12 is constructed by assembling an upper frame 16, a lower frame 18, and left and right vertical frames 20 around the entire perimeter. The transom 13 is located between the left and right vertical frames 20 to separate the upper panel 14 from the lower panel 15. The transom 13 may be installed between the vertical frame and the mullion, or between two mullions to separate the upper and lower windows. The upper panel 14 and lower panel 15 are supported by the frame 12 and the transom 13. Each of the frame materials and interlocks in the fittings 10A to 10C is made of an extruded material and is configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction.

[0012] Fig. 2 is a vertical cross-sectional view of the fitting 10A. Fig. 3 is a horizontal cross-sectional view of the fitting 10A. However, since the fitting 10A is basically bilaterally symmetrical, Fig. 3 shows only the left side portion. Fig. 4 is a vertical cross-sectional view of the bottom frame 18 and its surrounding area. Arrows A, W1, W2, and W3 in Fig. 4 indicate flow paths similar to those of air and water in the lintel 13 (see Fig. 6).

[0013] The frame body 12 is a metal-resin composite frame, with the upper frame 16 consisting of a metal upper frame 22 and a resin upper frame 24, the lower frame 18 consisting of a metal lower frame 26 and a resin lower frame 28, and the vertical frame 20 consisting of a metal vertical frame 30 and a resin vertical frame 32. The vertical frame 20 is provided with a batten 34. The metal frames 22, 26, and 30 mainly form the exterior side, while the resin frames 24, 28, and 32 mainly form the interior side. As will be described later, the frame body 12 and the transom 13 also have a metal-resin composite structure. These metal-resin composite structures have excellent insulation properties and interior design. The metal frames 22, 26, and 30 and the metal transom 56 described later are made of, for example, an aluminum alloy material.

[0014] The frame 12 will be described in the order of the vertical frame 20, upper frame 16, and lower frame 18, followed by the interlocking frame 13. As described above, the vertical frame 20 includes a metal vertical frame 30 on the exterior side and a plastic vertical frame 32 on the interior side, with a batten 34. The metal vertical frame 30 has an exterior hollow portion 30a that is long in the projection direction, an exterior sight retainer portion 30b that protrudes inward, and a sight retainer portion 30c that extends indoors. A seal pocket is located at the end of the exterior sight retainer portion 30b, and backup material 36 and sealing material 38 support the edges of the exterior surfaces of the panels 14 and 15. The plastic vertical frame 32 has a hollow portion 32a that is elongated in the projection direction as its base and a sight retainer portion 32b that protrudes outdoors. The hollow portion 32a and the sight retainer portion 30c engage at the interior end, and the interior end of the hollow portion 30a engages with the tip of the sight retainer portion 32b.

[0015] The flange 34 has a metal flange 40 on the exterior side and a plastic flange 42 on the interior side. The metal flange 40 and plastic flange 42 engage with each other at L-shaped and square U-shaped engagement sections. The metal flange 40 extends diagonally toward the exterior side, and its tip engages with part of the hollow section 32a. The plastic flange 42 has a roughly square cross section and is divided into two rooms lined up in the viewing direction. The interior end of the plastic flange 42 engages with the exterior end of the hollow section 32a.

[0016] A portion of each of the metal ridge 40 and the resin ridge 42 forms a visible retaining portion 34a. The inner peripheral end of the visible retaining portion 34a supports the edges of the indoor surfaces of the panels 14, 15 via a backup material 36 and a sealing material 38. A panel retaining space 44 is formed, surrounded by the visible wall of the hollow portion 30a, the outdoor visible retaining portion 30b, and the visible retaining portion 34a. The visible retaining portion 34a serves as the indoor visible retaining portion of the panel retaining space 44. The panel retaining space 44 is formed so as to be connected around all four sides of the panels 14, 15 by the frame 12 and the interlining 13.

[0017] The upper frame 16 will now be described. As described above, the upper frame 16 has a metal upper frame 22 and a resin upper frame 24. The metal upper frame 22 has a concealed wall 22a, an exterior sight retention portion 22b, an interior sight retention portion 22c, and hollow portions 22d and 22e.

[0018] The recessed wall 22a extends in a substantially straight line in the recessed direction. The exterior sight retaining portion 22b protrudes inward from the exterior end of the recessed wall 22a. The interior sight retaining portion 22c protrudes inward from approximately the middle of the recessed wall 22a. The exterior sight retaining portion 22b, the interior sight retaining portion 22c, and approximately the exterior half of the recessed wall 22a form a panel retaining space 44 that opens inward. Seal pockets are formed at the tips of the exterior sight retaining portion 22b and the interior sight retaining portion 22c, and backup material 36 and sealing material 38 are provided facing each other in the seal pockets to hold the edge of the upper panel 14. Hollow portions 22d and 22e are formed at the tip of the recessed wall 22a on the outer periphery of the panel retaining space 44. The hollow portions 22d and 22e are smaller than the intermediate hollow portion 26a, which will be described later.

[0019] The resin upper frame 24 has two approximately square hollows 24a aligned in the front direction, which engage with the indoor end of the front wall 22a and the tip of the indoor-side sight retaining portion 22c. The hollows 24a are slightly spaced from the front wall 22a.

[0020] The lower frame 18 will now be described. As described above, the lower frame 18 comprises a metal lower frame 26 and a resin lower frame 28. First, the resin lower frame 28 will be described. The resin lower frame 28 has a hollow portion 28a as its base, and includes a projection piece 28b that protrudes to the outside of the room, a projection piece 28c that protrudes to the inside of the room, and an engagement piece 28d that protrudes from the inside end toward the outer periphery. The hollow portion 28a is divided by a partition wall into a relatively large outer chamber 28e and a relatively small inner chamber 28f. A shallow recess 28g is formed in the upper surface of the hollow portion 28a. The recess 28g occupies most of the inner peripheral projection surface of the resin lower frame 28. A drain hole 28h is formed in the lower portion of the hollow portion 28a. A drain hole 28i that communicates with the outer chamber 28e is formed in the recess 28g. A check valve 46 is provided in the drain hole 28i.

[0021] Next, we will explain the metal lower frame 26. The metal lower frame 26 has a relatively large intermediate hollow portion 26a and a relatively small outdoor hollow portion 26b adjacent to the outer periphery of the intermediate hollow portion 26a on the outdoor side. The intermediate hollow portion 26a is strong enough to support the weight of the lower panel 15 and other components.

[0022] The metal sill 26 further includes an interior-side projection piece 26c, which extends slightly diagonally upward toward the interior of the room from the upper wall 26aa of the intermediate hollow section 26a; an exterior-side projection piece 26d, which extends to the exterior; an exterior-side projection retainer 26e, which protrudes inward from the exterior end of the exterior-side projection piece 26d; and an interior-side projection retainer 26f, which protrudes inward from the middle of the inner peripheral wall of the intermediate hollow section 26a. An engaging portion is provided at the end of the interior-side projection piece 26c to engage with the resin sill 28. The tip of projection piece 28b is bent and engages so as to mesh with the tip of the interior-side projection retainer 26f.

[0023] The tip of exterior sight-holding portion 26e supports the edge of the exterior surface of lower panel 15 via a seal pocket, backup material 36, and sealing material 38. The tip of interior sight-holding portion 26f supports the edge of the interior surface of lower panel 15 via a part of resin lower frame 28, backup material 36, and sealing material 38. In other words, at this location, panel holding space 44 is formed and surrounded by intermediate hollow portion 26a, exterior sight-hold piece 26d, exterior sight-holding portion 26e, and interior sight-holding portion 26f. To distinguish panel holding space 44 at this location from the others, it is also referred to as panel holding space 44A.

[0024] The bottom of the panel holding space 44A is formed by a portion of the inner peripheral wall of the intermediate hollow portion 26a and the exterior-facing piece 26d, and this portion is also referred to as the bottom wall 26g. The lower panel 15 is supported within the panel holding space 44A by a setting block 48. Component pockets 26h (see Figure 4) are provided at the interior lower end of the exterior-facing piece 26e and the exterior lower end of the interior-facing piece 26f. Components that prevent the screen from lifting up and coming off, as well as heated foam material for fire prevention equipment, are attached to the component pockets 26h.

[0025] A substantially square outdoor communication space 26i that opens to the outside of the room is formed by the inner peripheral wall of the outdoor hollow portion 26b, the outdoor wall of the intermediate hollow portion 26a, and the outdoor projection piece 26d. A first hole 50 that communicates with the outdoor communication space 26i is provided in the outdoor projection piece 26d. The first hole 50 is positioned to avoid the component pocket 26h of the outdoor projection holder 26e and the setting block 48. A small downward protruding piece 26j is provided at the tip of the outdoor projection piece 26d.

[0026] The intermediate hollow portion 26a will be further described with reference to Figure 4. The intermediate hollow portion 26a is an irregular rectangle that is slightly longer in the forward direction, and in this embodiment, the aspect ratio is approximately 2:5. The upper wall 26aa of the intermediate hollow portion 26a is horizontal, the outdoor side wall 26ab and the indoor side wall 26ac are vertical, and the lower wall 26ad is slightly inclined upward toward the indoor side. A component pocket 26h is provided at the outdoor end of the upper wall 26aa. The outdoor side wall 26ab is located between the outdoor side support portion 26e and the indoor side support portion 26f. The indoor side wall 26ac is located indoors beyond the indoor side support portion 26f. As is clear from Figure 4, the outdoor side wall 26ab is located below the setting block 48 and serves to support the lower panel 15.

[0027] An indoor drain hole 26k is formed on the upper wall 26aa toward the indoor side of the indoor spot retaining portion 26f. A check valve 46 is provided in the indoor drain hole 26k. An outdoor drain hole 26m is formed in the outdoor wall 26ab at a position including the lower end. The outdoor drain hole 26m has a U-shaped notch shape, and its opening is closed by the vertical frame 20 to form a hole. In other words, the outdoor drain hole 26m is located at the very end of the bottom frame 18.

[0028] A second hole 52 is provided in the upper wall 26aa on the outdoor side of the indoor-side spot-holding portion 26f. The second hole 52 is provided in a position that avoids the component pocket 26h in the intermediate hollow portion 26a, the component pocket 26h of the indoor-side spot-holding portion 26f, and the setting block 48. The first hole 50 and the second hole 52 are each formed in the bottom wall 26g of the panel holding space 44A. In other words, the first hole 50 is formed on the outdoor side of the bottom wall 26g, sandwiched between the outdoor-side wall 26ab, and the second hole 52 is formed on the indoor side.

[0029] The indoor drain hole 26k, the outdoor drain hole 26m, the first hole 50, and the second hole 52 are each located near the left end of the bottom frame 18. Although not shown, the area near the right end is also symmetrical. The first hole 50 is also located in the center of the bottom frame 18 (see Figure 3). The reference numeral 54 in each figure denotes a C-shaped screw hole for joining to the vertical frame 20 with a screw.

[0030] The indoor drain hole 26k, the first hole 50, and the second hole 52 in the lower frame 18 have the same shapes as the upper drain hole 56k, the first hole 64, and the second hole 66 in the underside 13 (see Figures 2 and 6), which will be described later, and are located in the same positions in a plan view. In Figure 3, the indoor drain hole 26k, the first hole 50, and the second hole 52 are shown in parentheses together with the upper drain hole 56k, the first hole 64, and the second hole 66.

[0031] FIG. 5 is an enlarged view of a screw hole 54. The screw hole 54 is configured with a substantially cylindrical arc-shaped wall 54a extending along the entire length of the shaped member, and has an inner diameter slightly smaller than that of the screw to be screwed. The arc-shaped wall 54a is C-shaped, with a portion joined to the shaped member and a portion opened by a notch 54b. The notch 54b has a width smaller than the inner diameter of the screw hole 54 and is formed along the entire length of the screw hole 54. Note that the screw hole 54 in this application is considered to belong to the hollow portion on the side where the notch 54b opens. Therefore, since the two screw holes 54 shown in FIG. 5 each open to the upper side, they both belong to the upper hollow portion. The screw hole 54 shown on the right in FIG. 5 is an example and does not apply to the fitting 10A.

[0032] Next, the mume 13 will be described. Figure 6 is a vertical cross-sectional view of the grommet and its surrounding area. The grommet 13 has a metal-resin composite structure consisting of a metal grommet 56, an upper resin grommet 58, a lower resin grommet 60, and an interior cover 62. The metal grommet 56 is the main part of the grommet 13. The upper resin grommet 58 is located on the upper side of the interior side of the metal grommet 56. The lower resin grommet 60 is located on the lower side of the interior side of the metal grommet 56. The upper resin grommet 58 is the same as the resin lower frame 28 described above, and the hollow portion 58a, the projection 58b, the protruding portion 58c, the engaging portion 58d, the exterior chamber 58e, the interior chamber 58f, the recess 58g, the drain hole 58h, and the drain hole 58i correspond to the hollow portion 28a, the projection 28b, the protruding portion 28c, the engaging portion 28d, the exterior chamber 28e, the interior chamber 28f, the recess 28g, the drain hole 28h, and the drain hole 28i. The lower resin frame 60 is the same as the upper resin frame 24, and corresponding parts are designated by the same reference numerals and detailed description thereof will be omitted. The interior cover 62 is engaged with the protruding piece 28c of the upper resin frame 58 and the protruding piece 24b of the lower resin frame 60, respectively, and covers the interior-facing surface of the metal frame 56.

[0033] The metal frame 56 has a longitudinally extending intermediate hollow section 56a, an outdoor hollow section 56b, and an indoor hollow section 56c. The upper section of these hollow sections 56a-56c roughly corresponds to the shape of the metal lower frame 26, while the lower section corresponds to the shape of the metal upper frame 22. The indoor hollow section 56c, the intermediate hollow section 56a, and the outdoor hollow section 56b are aligned in this order from the inside to the outside of the room. In other words, the intermediate hollow section 56a is located between the outdoor hollow section 56b and the indoor hollow section 56c. The lower walls of the intermediate hollow section 56a, the outdoor hollow section 56b, and the indoor hollow section 56c are approximately linear in the forward direction.

[0034] The indoor hollow portion 56c is an irregular trapezoid with a vertical indoor wall and a sloped outdoor wall. In this embodiment, the ratio of the lower wall to the upper wall 56ca and their heights is approximately 5:7:8. Similar to the indoor projection piece 26c, the upper wall 56ca is sloped slightly upward toward the indoor side. The indoor hollow portion 56c is closed on all four sides. Two screw holes 54 are provided in the indoor hollow portion 56c. These two are also referred to as screw holes 54C. One of these is located approximately in the middle of the upper wall 56ca, and the other is located directly below it, with the C-shaped openings of the two facing each other vertically.

[0035] The intermediate hollow portion 56a is generally rotationally symmetrical to the indoor hollow portion 56c. In other words, in this embodiment, the ratio of the lower wall, upper wall, and height is approximately 7:5:8. The intermediate hollow portion 56a does not have any screw holes 54. The intermediate hollow portion 56a will be described in more detail below.

[0036] The exterior hollow section 56b is rectangular and slightly smaller than the intermediate hollow section 56a and the interior hollow section 56c. The aspect ratio in Figure 6 is approximately 4:7. The height ratio between the exterior hollow section 56b and the intermediate hollow section 56a is approximately 3:5. The exterior hollow section 56b is closed on all four sides. Screw holes 54 are provided at the top and bottom ends of the interior wall of the exterior hollow section 56b, with the C-shaped openings facing each other. These two holes are also referred to as screw holes 54B. Screw hole 54B is provided in the exterior wall 56ab, which supports the setting block 48, and ensures reliable support for the upper panel 14. Screw hole 54C is provided between the upper resin liner 58 and the lower resin liner 60, ensuring reliable support for these elements. The six screw holes 54 in the metal liner 56 are located at the vertices of a slightly irregular hexagon.

[0037] The three hollow portions 56a to 56c of the metal transverse member 56 have an overall height to width ratio of approximately 2:3. In other words, the hollow portions 56a to 56c have a greater width compared to their height, making them suitable for attaching the upper resin transverse member 58 and the lower resin transverse member 60.

[0038] The metal frame 56 further includes an exterior-facing piece 56d, which is formed by extending the upper wall 56aa toward the exterior of the room; an exterior-facing piece 56e that protrudes inward from the exterior end of the exterior-facing piece 56d; and an interior-facing piece 56f that protrudes inward from the middle of the upper wall 56aa of the intermediate hollow portion 56a. The exterior-facing piece 56e and the interior-facing piece 56f correspond to the exterior-facing piece 26e and the interior-facing piece 26f of the lower frame 18. An engaging portion is provided at the end of the interior-facing piece 56f to engage with the upper resin frame 58. The tip of the frame 58b is bent and engages with the tip of the interior-facing piece 56f.

[0039] The tip of the exterior-facing retaining portion 56e supports the edge of the exterior surface of the upper panel 14 via the seal pocket, backup material 36, and sealing material 38. The tip of the interior-facing retaining portion 56f supports the edge of the interior surface of the upper panel 14 via a portion of the upper resin interlining 58, backup material 36, and sealing material 38. In other words, at this location, the panel retaining space 44 is surrounded by the intermediate hollow portion 56a, the exterior-facing piece 56d, the exterior-facing retaining portion 56e, and the interior-facing retaining portion 56f. To distinguish the panel retaining space 44 at this location from the others, it is also referred to as panel retaining space 44B.

[0040] The bottom of the panel holding space 44B is formed by a portion of the inner peripheral wall of the intermediate hollow portion 56a and the exterior-facing piece 56d, and this portion is also referred to as the bottom wall 56g. The upper panel 14 is supported within the panel holding space 44B by the setting block 48. Component pockets 56h are provided at the interior-facing lower end of the exterior-facing supporting portion 56e and at the exterior-facing lower end of the interior-facing supporting portion 56f.

[0041] The inner peripheral wall of the outdoor hollow portion 56b, the outdoor wall of the intermediate hollow portion 56a, and the outdoor projection piece 56d form a substantially square outdoor communication space 56i that opens to the outside of the room. A first hole 64 that communicates with the outdoor communication space 56i is provided in the outdoor projection piece 56d. A small downward-facing protrusion 56j is provided at the tip of the outdoor projection piece 56d. The first hole 64 is positioned to avoid the component pocket 56h of the outdoor projection holder 56e and the setting block 48.

[0042] The intermediate hollow portion 56a will now be described in further detail. The outdoor-side wall 56ab of the intermediate hollow portion 56a is located between the outdoor-side sight support portion 56e and the indoor-side sight support portion 56f. The indoor-side wall 56ac is located on the indoor side of the indoor-side sight support portion 56f. As is clear from Figure 6, the outdoor-side wall 56ab is located below the setting block 48 and serves to support the upper panel 14.

[0043] An upper drain hole 56k is formed in the upper wall 56aa on the indoor side of the indoor-side sight retainer 56f. A check valve 46 is provided in the upper drain hole 56k. A lower drain hole 56m is formed in the lower wall 56ad at the outdoor-side end. The lower drain hole 56m has a rectangular cutout shape (see FIG. 3), and its opening is closed by the vertical frame 20 to form a hole. In other words, the lower drain hole 56m is located at the extreme end of the crosspiece 13.

[0044] A second hole 66 is provided in the upper wall 56aa on the outdoor side of the indoor-side spot-holding portion 56f. The second hole 66 is provided in a position that avoids the component pocket 56h in the intermediate hollow portion 56a, the component pocket 56h of the indoor-side spot-holding portion 56f, and the setting block 48. The first hole 64 and the second hole 66 are each formed in the bottom wall 56g of the panel holding space 44B. In other words, the first hole 64 is formed on the outdoor side of the bottom wall 56g across the outdoor-side wall 56ab, and the second hole 66 is formed on the indoor side.

[0045] The upper drain hole 56k, the lower drain hole 56m, the first hole 64, and the second hole 66 are each located near the left end of the blind 13. Although not shown, the area near the right end also has a symmetrical structure. The first hole 64 is also located in the center of the blind 13 (see Figure 3).

[0046] In this embodiment, the first hole 64 and the second hole 66 are the same shape and lined up in the projection direction, each consisting of a straight portion and semicircular portions at both ends, and are elongated holes that run along the longitudinal direction of the crossbeam 13. The first hole 64 and the second hole 66 have a sufficiently large area so as not to reduce the strength of the crossbeam 13. The first hole 64 and the second hole 66 are located near the lower drainage hole 56m, but are slightly offset in the longitudinal direction of the crossbeam 13, and although the semicircular portions slightly overlap the lower drainage hole 56m in the longitudinal direction, at least the straight portions do not overlap, ensuring strength.

[0047] The first hole 64 is located on the upper surface of the outdoor communication space 56i, and is hardly visible because the outdoor communication space 56i is provided with a downward protruding piece 56j. The second hole 66 and the lower drain hole 56m are also located in invisible positions.

[0048] The metal frame 56 further has an exterior sight retaining portion 56n and an interior sight retaining portion 56o. The exterior sight retaining portion 56n and the interior sight retaining portion 56o correspond to the exterior sight retaining portion 22b and the interior sight retaining portion 22c of the upper frame 16 described above. The exterior sight retaining portion 56n protrudes so that the exterior wall of the exterior hollow portion 56b extends downward. The interior sight retaining portion 56o protrudes downward from the boundary between the intermediate hollow portion 56a and the interior hollow portion 56c. The exterior sight retaining portion 56n, the interior sight retaining portion 56o, the bottom wall 56ad of the intermediate hollow portion 56a, and the bottom wall of the exterior hollow portion 56b form a panel retaining space 44 that opens downward. A seal pocket is formed at the tip of the exterior side sight holding portion 56n and the interior side sight holding portion 56o, and a backup material 36 and a seal material 38 are arranged facing each other in the seal pocket portion to hold the edge of the lower panel 15.

[0049] The flow of water and air through the interlock 13 of the fitting 10A will be described with reference to FIG. 6. Water that enters the panel-retaining space 44B is drained through the first hole 64 and the second hole 66 formed in the bottom wall 56g. As indicated by arrow W1, water is drained from the first hole 64 through the outdoor-connecting space 56i to the outside. As indicated by arrow W2, water flows from the second hole 66 down the lower wall 56ad of the intermediate hollow portion 56a and through the lower drain hole 56m into the panel-retaining space 44 above the lower panel 15. Then, water reaches the panel-retaining space 44A (see FIG. 4) in FIG. 4, where it is drained to the outside through the first hole 50, the second hole 52, and the outdoor drain hole 56m. In this way, the first hole 64 and the second hole 66 function as drainage holes. Because the first hole 64 is formed not only at both ends but also in the center of the interlock 13, water does not accumulate in the center of the panel-retaining space 44B.

[0050] Condensation water on the indoor side generated on panel 14 and the like is drained along the path indicated by arrow W3. That is, water that has entered recess 58g enters outdoor chamber 58e through check valve 46 of drain hole 58i, drips down drain hole 58h, passes through check valve 46 of upper drain hole 56k, runs down lower wall 56ad, and reaches lower drain hole 56m. The water then follows the same path as arrow W2.

[0051] The intermediate hollow portion 56a is connected to the outside through the panel holding space 44A via the route indicated by arrows W2 and W3, so it is basically at the same pressure as the outside air. However, because this route is long, there is concern that this alone may not be enough to make the intermediate hollow portion 56a at a sufficiently equal pressure to the outside air.

[0052] In contrast, in the fitting 10A of this embodiment, a first hole 64 is formed on the outdoor side of the bottom wall 56g of the panel retention space 44B, sandwiched between the outdoor-side wall 56ab, and a second hole 66 is formed on the indoor side. Therefore, as indicated by arrow A, outside air enters the panel retention space 44B from the outdoor communication space 56i through the first hole 64 and then through the second hole 66 into the intermediate hollow portion 56a. In other words, the first hole 64 and the second hole 66 function as air vents in addition to drainage. The first hole 64 and the second hole 66 are appropriately large, ensuring a sufficient amount of air. Therefore, even without a path through the panel retention space 44, the intermediate hollow portion 56a is at the same pressure as the outdoor air, eliminating pressure differences with other parts and reducing distortion.

[0053] As described above, the joiner 13 of the fitting 10A according to this embodiment has an exterior hollow section 56b, an interior hollow section 56c, and an intermediate hollow section 56a located between the exterior hollow section 56b and the interior hollow section 56c along the longitudinal direction of the joiner 13. An upper drain hole 56k is formed in the upper wall 56aa of the intermediate hollow section 56a, and a lower drain hole 56m is formed in the lower wall 56ad. Therefore, the intermediate hollow section 56a serves as a water flow path, as indicated by arrows W2 and W3. Meanwhile, the exterior hollow section 56b and the interior hollow section 56c are provided with screw holes 54, partially opened by notches 54b (see FIG. 5), for connecting the vertical frame 20 with screws. Therefore, the intermediate hollow section 56a between them serves as a water flow path, preventing water from entering the screw holes 54 in the exterior hollow section 56b and the interior hollow section 56c. Because the outdoor hollow portion 56b and the indoor hollow portion 56c form a space closed on all sides, the screw holes 54 in these portions will not be wet, but holes unrelated to the water flow path may be formed depending on design conditions, etc. However, the hollow portions 56b and 56c may have holes for attaching parts that will not allow water to enter.

[0054] The hollow sections 56a to 56c have a greater projected width than their height, and screw holes 54B are formed in the outer hollow section 56b on one side of the intermediate hollow section 56a, while screw holes 54C are formed in the inner hollow section 56c on the other side. In other words, screw holes 54B and 54C are formed at positions that are appropriately spaced apart in the projected direction, allowing for stable fixation to the vertical frame 20. The two screw holes 54C in each of the outer hollow section 56b and the inner hollow section 56c are spaced apart vertically, allowing for even more stable fixation to the vertical frame 20.

[0055] In this embodiment, screw holes 54Aa are provided on the indoor side of the indoor-side sighting retainer 56f (see FIG. 6). However, the outdoor-side retainer 58e effectively separates the screw holes 54Aa from the water flow path (arrow W3), preventing them from being wet. Screw holes 54Ab are provided on the underside of the boundary between the intermediate hollow section 56a and the indoor-side hollow section 56c, but are separated from the water flow path. Screw holes 54Aa are provided in the indoor-side sighting retainer 56f, a protruding piece extending upward from the upper wall 56aa of the intermediate hollow section 56a, while screw holes 54Ab are provided in the indoor-side sighting retainer 56o, a protruding piece extending downward from the intermediate hollow section 56a. This ensures the fastening strength of the intermediate hollow section 56a, which does not have screw holes 54, to the vertical frame 20. Screw holes 54Aa and 54Ab are spaced apart vertically, further stabilizing the lintel 13.

[0056] In this embodiment, there is one intermediate hollow section 56a forming the water flow path, one outdoor hollow section 56b equipped with screw holes 54, and one indoor hollow section 56c, for a total of three. However, depending on the conditions, each may be divided into multiple sections. In other words, the total number of intermediate hollow sections 56a, outdoor hollow sections 56b, and indoor hollow sections 56c may be four or more. If there are multiple intermediate hollow sections 56a, each may be provided with an upper drain hole 56k and a lower drain hole 56m. There may be two or more transoms 13, and the total number of panels 14, 15 may be three or more. In other words, the upper and lower windows of the present invention are arranged relatively above and below each other using a predetermined transom as a reference.

[0057] Next, we will explain fittings 10B and 10C according to second and third embodiments. The same components of fittings 10B and 10C as fitting 10A will be assigned the same reference numerals and detailed explanations will be omitted. For the sake of convenience, slight differences in shape will be treated similarly.

[0058] Figure 7 is a view of a fitting 10B according to a second embodiment of the present invention as seen from the inside of a room. Figure 8 is a vertical cross-sectional view of the fitting 10B. The upper part of the fitting 10B is substantially the same as the fitting 10A described above, and is therefore omitted in Figure 8. As the fitting 10B will mainly be described with regard to the lattice 13, a horizontal cross-sectional view of the fitting 10B will be omitted.

[0059] The fitting 10B is a stepped window having a frame 12, a transom 13, an upper panel 14 held on the inner periphery of the frame 12 and the transom 13, and a lower window 68. The upper panel 14 is a fixed window like that of the fitting 10A and corresponds to the upper window. The lower window 68 is a vertical sliding window (movable window) that holds a shoji screen 70 on the inner periphery of the frame 12 and the transom 13, and opens by sliding the shoji screen 70 outward along a rail.

[0060] Shoji screen 70 is constructed by placing a panel 78 inside a frame body 77, which is made up of an upper frame 72, a lower frame 74, and left and right vertical frames 76 assembled all around. A ledge 34 is provided on the interior side of frames 72, 74, and 76, which holds panel 78 together with frames 72, 74, and 76.

[0061] The lower frame 74 and the upper frame 72 are basically symmetrical from top to bottom. The left and right vertical frames 76 are basically symmetrical from left to right. Between the lower frame 74 and the bottom frame 18, and between the upper frame 72 and the crossbeam 13, link mechanisms (support parts) 80 for sliding function are provided in the gaps in the viewing direction. Although not shown, a pull-up member is provided between one of the vertical frames 76 and the vertical frame 20. A handle 82 is provided on the right vertical frame 76, which engages and disengages with the latch member of the vertical frame 20 to open and close the shoji screen 70. Screw holes 54 formed in the upper frame 72 and the lower frame 74 are for fixing to the vertical frame 76.

[0062] The lintel 13 in the fitting 10B has a metal-resin composite structure consisting of a metal lintel 86, an upper resin lintel 58, a lower resin lintel 60, and an interior cover 62.

[0063] The metal mesh 86 has an intermediate hollow section 86a, an outdoor hollow section 86b, and an indoor hollow section 86c. The hollow sections 86a-86c correspond to the above-mentioned hollow sections 56a-56c and are in the same relative positions, but are different in shape. The hollow sections 86a-86c are each vertically elongated, with the intermediate hollow section 86a having the widest prospective width, the outdoor hollow section 86b having the narrowest, and the indoor hollow section 86c having an intermediate width. The upper wall 86aa, the outdoor wall 86ab, the indoor wall 86ac, and the lower wall 86ad of the intermediate hollow section 86a correspond to the above-mentioned upper wall 56aa, the outdoor wall 56ab, the indoor wall 56ac, and the lower wall 56ad.

[0064] The upper of the two screw holes 54B is located at the top of the boundary with the intermediate hollow portion 86a and opens downward, while the lower one is located slightly below the midpoint of the outdoor hollow portion 86b and opens to the outside. The non-opening side of each of the two screw holes 54B protrudes slightly into the intermediate hollow portion 86a.

[0065] The upper of the two screw holes 54C is located approximately in the middle of the upper wall of the indoor hollow portion 86c and opens downward, while the lower one is located at the lowest part of the boundary with the intermediate hollow portion 86a and opens upward.

[0066] The metal blind 86 further has a sight piece 88 that protrudes downward from the interior end of the intermediate hollow portion 86a. A pocket is provided on the exterior side of the lower end of the sight piece 88 to hold a seal 90a, which abuts against the surface of the upper frame 72 of the lower window 68 when it is closed to form a seal. A pocket is provided on the underside of the exterior hollow portion 86b to hold a seal 90b, which abuts against a part of the upper frame 72 of the lower window 68 when it is closed to form a seal.

[0067] The link mechanism 80 is fixed by a screw 92 that penetrates the bottom wall 86ad. The link mechanism 80 is attached to the bottom wall 86d without a seal. The intermediate hollow portion 86a on the side where the screw 92 penetrates serves as a water flow path, so a seal is not necessary.

[0068] The intermediate hollow portion 86a has a lower drain hole 56m formed in the same manner as the intermediate hollow portion 56a. The lower drain hole 56m is located on the outermost side of the lower wall 86ad. The lower drain hole 56m is located further outward than the link mechanism 80 and is spaced apart from the weatherstripping material 90a. The link mechanism 80 is also rarely exposed to water. The lower drain hole 56m is located further outward than the sight piece 88, and water dripping from the lower drain hole 56m is prevented from entering the interior of the room by the action of the seal 90a. In Figure 8, the air and water paths are indicated by arrows A and W1-W3. These paths correspond to those shown in Figure 6. Water dripping from the lower drain hole 56m is drained to the outside via a designated drainage path. The metal blind 86 does not have the above-mentioned exterior sight retainer 56n or interior sight retainer 56o.

[0069] Figure 9 is a view of a fitting 10C according to a third embodiment of the present invention, as seen from the inside of the room. Figure 10 is a vertical cross-sectional view of the fitting 10C. The upper part of the fitting 10C is substantially the same as the fitting 10A described above, and is therefore omitted in Figure 10. As the fitting 10C will mainly be described with regard to the fascia 13, a horizontal cross-sectional view of the fitting 10C will be omitted.

[0070] The fitting 10C is a stepped window having a frame 12, a transom 13, an upper panel 14 held on the inner periphery of the frame 12 and the transom 13, and a lower window 94. The upper panel 14 is a fixed window like that of fitting 10A and corresponds to the upper window. The lower window 94 is a sliding window that slidably holds an outer shoji screen 96a and an inner shoji screen 96b on the inner periphery of the frame 12 and the transom 13. Reference numeral 97 in Figure 9 is a crescent.

[0071] The shoji screens 96a and 96b are constructed by placing a panel 106 inside a frame body 104, which is made up of an upper frame 98, a lower frame 100, and left and right vertical frames 102 assembled around the four sides. The frames of the outer shoji screen 96a and the inner shoji screen 96b have slightly different shapes, but for ease of explanation, they are given the same reference numerals.

[0072] The metal lower frame 26 of the fitting 10C is provided with two lower rails 108 aligned in the front direction, which slidably support the shoji screens 96a and 96b. The lower frame 100 is provided with door rollers 110 which are capable of rolling on the lower rails 108.

[0073] The joiner 13 in the fitting 10C has a metal-resin composite structure consisting of a metal joiner 112, an upper resin joiner 114, a first lower resin joiner 116, a second lower resin joiner 118, and the interior cover 62. The upper resin joiner 114 is the same as the upper resin joiner 58.

[0074] The metal frame 112 has an intermediate hollow section 112a, an outdoor hollow section 112b, and an indoor hollow section 112c. The hollow sections 112a-112c correspond to the above-mentioned hollow sections 56a-56c, and are positioned in the same relative positions and have approximately the same shapes. The upper wall 112aa, the outdoor wall 112ab, the indoor wall 112ac, and the lower wall 112ad of the intermediate hollow section 112a correspond to the above-mentioned upper wall 56aa, the outdoor wall 56ab, the indoor wall 56ac, and the lower wall 56ad.

[0075] The screw hole 54Aa and the two screw holes 54B in the exterior hollow portion 112b are in the same position and facing the same direction as those in the above-mentioned fitting 10A. The fitting 10C does not have the screw holes 54Ab found in the fittings 10A and 10B. In other words, the fittings 10A and 10B have screw holes 54Aa and 54Ab in the protruding pieces that protrude upward and downward from the intermediate hollow portions 56a and 86a. However, even in the fitting 10C, where screw holes 54Aa and 54Ab are provided in the protruding pieces that protrude upward and downward from the intermediate hollow portion 112a at least in one direction, a suitable effect of strengthening the fastening can be achieved. Three screw holes 54C are provided in the interior hollow portion 112c. Two of these are in the same position and facing the same direction as those in the above-mentioned fitting 10A. The remaining one of the three is provided at its lower end in contact with the indoor side wall 112ac, which is located close to the screw hole 54Ab, and fixes the metal interlock 112 at a suitable distance in the vertical direction from the screw hole 54Ab.

[0076] The metal screen 112 further includes an exterior upper rail (slide guide) 112d and guide pieces 112e and 112f, each of which protrudes downward. The exterior upper rail 112d is located approximately on the extension of the exterior wall 112ab. The upper frame 98 of the outer screen 96a has a groove 98a in which the exterior upper rail 112d is positioned, allowing it to slide left and right.

[0077] The sight piece 112e protrudes slightly from the inside of the room beyond the lower end of the indoor wall 112ac. The sight piece 112f is an extension of the indoor wall 112ca of the indoor hollow portion 112c. A first lower resin guide 116 is provided between the sight pieces 112e and 112f. The first lower resin guide 116 has an irregular crank shape, and its outdoor end is fixed so as to abut against the tip of the sight piece 112e. The sight pieces 112e, 112f and the first lower resin guide 116 form a guide recess (slide guide portion) 120 that opens downward. The upper end of the inner shoji screen 96b fits into the guide recess 120, allowing it to slide left and right. A pocket is provided at the outdoor end of the sight pieces 112e, 112f to hold a seal 122. The seal 122 abuts against the upper ends of the shoji screens 96a, 96b to provide a sealing effect. A member for narrowing the gap may be provided between the exterior upper rail 112d and the groove 98a, and between the guide recess 120 and the upper end of the inner shoji screen 96b.

[0078] The second lower resin mesh 118 is L-shaped, and one side forming the L-shape, the protruding piece 118a, has the same shape as the protruding piece 24b described above, and is engaged with the interior cover 62 together with the protruding piece 58c, while the other side forming the L-shape is engaged with the sight piece 112f.

[0079] The intermediate hollow portion 112a has a lower drain hole 56m formed in the same manner as the intermediate hollow portion 56a. The lower drain hole 56m is located on the innermost side of the lower wall 112ad. The lower drain hole 56m is located between the outermost facing piece 112e of the guide recess 120 and the outer upper rail 112d. Water dripping from the lower drain hole 56m does not enter the interior of the room due to the action of the seal 122. In Figure 8, the air and water paths are indicated by arrows A and W1 to W3. These paths correspond to those shown in Figure 6. Water dripping from the lower drain hole 56m is drained to the outside via a specified drainage path. In addition, in the case of a sliding window with three or more shoji screens, drainage to the interior of the room can be prevented by forming the lower drain hole 56m between the outermost and second-from-the-outside sliding guide sections of the three or more sliding guide sections.

[0080] The present invention is not limited to the above-described embodiment, and can of course be freely modified within the scope of the gist of the present invention.

[0081] The fixture in this embodiment is a fixture comprising a frame body supporting an upper window and a lower window, and a mould separating the upper window and the lower window, wherein the mould has an outdoor hollow section along the longitudinal direction of the mould, an indoor hollow section, and an intermediate hollow section between the outdoor hollow section and the indoor hollow section, wherein an upper drainage hole is formed in the upper wall of the intermediate hollow section and a lower drainage hole is formed in the lower wall, and the outdoor hollow section and the indoor hollow section have screw holes for joining with the vertical frame of the frame body with screws.

[0082] In such building materials, the exterior hollow section and the interior hollow section have screw holes for connecting to the vertical frame with screws, and the intermediate hollow section between them serves as a water flow path, preventing the screw holes in the exterior hollow section and the interior hollow section from becoming wet.

[0083] The lower window may be a fixed window, the transom may have a lower panel holding space that holds the edge of the lower window panel with an exterior-side holding portion and an interior-side holding portion that protrude downward from the lower wall, and the lower drain hole may be formed between the exterior-side holding portion and the interior-side holding portion. A panel holding space is formed between the exterior-side holding portion and the interior-side holding portion of the fixed window, and water can be drained from the panel holding space.

[0084] The lower window may be a movable window, the transom may be provided with a support part that movably supports the movable window, and the lower drain hole may be formed on the outdoor side of the support part.

[0085] The support component may be attached to the lower wall without a seal, which eliminates the need for a seal in this area and reduces assembly steps and costs.

[0086] The lower window may be a sliding window, the transom may be provided with a slide guide section that guides the sliding window, and the lower drain hole may be formed between the outermost and second outermost of the multiple slide guide sections. Water can be drained from this section to prevent it from entering the room.

[0087] The upper window is a fixed window, the transom has a panel holding space that holds the edge of the upper window panel with an exterior-side sight holding portion and an interior-side sight holding portion that protrude upward from the upper wall, the exterior side wall of the intermediate hollow portion is between the exterior-side sight holding portion and the interior-side sight holding portion, the interior side wall of the intermediate hollow portion is on the interior side of the interior-side sight holding portion, and the bottom wall of the panel holding space may have a first hole formed on the exterior side of the exterior side wall of the intermediate hollow portion and a second hole formed on the interior side. With this configuration, the intermediate hollow portion can be maintained at equal pressure to the outside air.

[0088] A screw hole may be provided in the protruding piece that protrudes from at least one of the upper and lower portions of the intermediate hollow portion. In this configuration, the screw hole is provided at a position slightly away from the intermediate hollow portion, thereby increasing stability.

[0089] If the outdoor hollow portion and the indoor hollow portion are closed on all four sides, the screw holes can be further prevented from being wet. [Explanation of symbols]

[0090] 10A, 10B, 10C fittings, 12 frame, 13 mullion, 14 upper panel, 15 lower panel, 44, 44A, 44B panel retaining space, 46 check valve, 48 setting block, 54, 54Aa, 54Ab, 54B, 54C screw hole, 56 metal mullion, 56a intermediate hollow portion, 56aa upper wall, 56ab outdoor wall, 56ac indoor wall, 56ad lower wall, 56b outdoor hollow portion, 56c indoor hollow portion, 56e outdoor sight retaining portion, 56f indoor sight retaining portion, 56g bottom wall, 56k upper drain hole, 56m lower drain hole, 58 upper plastic mullion, 60 lower plastic mullion, 64 first hole, 66 second hole, 68 lower window, 70 shoji screen, 78 Panel, 80 link mechanism (support part), 86 metal blind, 86a intermediate hollow part, 86b outdoor hollow part, 86c indoor hollow part, 94 lower window, 96a outer shoji screen, 96b inner shoji screen

Claims

1. A fitting comprising a frame body supporting an upper window and a lower window, and a lattice separating the upper window and the lower window, The transom has an outdoor hollow portion, an indoor hollow portion, and an intermediate hollow portion between the outdoor hollow portion and the indoor hollow portion along the longitudinal direction of the transom, An upper drain hole is formed in the upper wall of the intermediate hollow portion, and a lower drain hole is formed in the lower wall of the intermediate hollow portion, The outdoor hollow portion and the indoor hollow portion have screw holes for joining with the vertical frame of the frame body with screws. A fixture characterized by:

2. The lower window is a fixed window, The transom has a lower panel holding space that holds the edge of the panel of the lower window with an exterior side sight holding portion and an interior side sight holding portion that protrude downward from the lower wall, The lower drain hole is formed between the exterior sight holding portion and the interior sight holding portion. The fixture according to claim 1 .

3. The lower window is a movable window, The windowpane is provided with a support component that movably supports the movable window, The lower drain hole is formed on the outdoor side of the support component. The fixture according to claim 1 .

4. The support component is attached to the lower wall without a seal.

4. The fitting according to claim 3.

5. The lower window is a sliding window, The window frame is provided with a slide guide portion that guides the sliding window slidably, The lower drain hole is formed between the outermost and second outermost slide guide portions of the plurality of slide guide portions. The fixture according to claim 1 .

6. The upper window is a fixed window, The transom has a panel holding space that holds the edge of the upper window panel by an exterior side sight holding portion and an interior side sight holding portion that protrude upward from the upper wall, The outdoor wall of the intermediate hollow portion is located between the outdoor sight holding portion and the indoor sight holding portion, The indoor side wall of the intermediate hollow portion is located indoors relative to the indoor side sight retaining portion, A first hole is formed on the outdoor side of the bottom wall of the panel holding space, sandwiching the outdoor side wall of the intermediate hollow portion, and a second hole is formed on the indoor side. The fixture according to claim 1 .

7. A screw hole is provided in a protruding piece protruding from the intermediate hollow portion to at least one of the upper and lower sides. The fixture according to claim 1 .

8. The outer and inner hollow sections are closed on all four sides. The fixture according to claim 1 .

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