Fitting

Abstract

To provide a fitting capable of preventing water immersion to an indoor side while having suitable design.SOLUTION: A lower frame 18 in the fittings 10 has a first hollow part side 26a extending in the longitudinal direction, and a panel holding space side 26a for holding the edge of the panel 14 by an outdoor side width holding part side 26e and an indoor side width holding part side 26f on the upper side of the first hollow part side 44c. The exterior sidewall 26ab is located between the exterior width holding portion 26e and the interior width holding portion 26f, and the interior sidewall 26ac is located on the interior side with respect to the interior width holding portion 26f, An indoor-side drain hole 26a is formed in the first hollow-portion side 26aa on the indoor side of the indoor-side aspect holding portion 26f in the upper-wall side 26k, an outdoor-side drain hole 26ab is formed in the outdoor-side sidewall 26m, a first hole 50 is formed in the bottom 44A 26g of the panel-holding-space side on the outdoor side across the outdoor-side sidewall 26ab, and a second hole 52 is formed on the indoor side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a fitting having a frame body for holding a panel. [Background technology]

[0002] There is a type of fixture known as a fixed window, in which a panel is held on the inner periphery of a frame. The lower frame of a fixed window shown in Patent Document 1 has a hollow section extending longitudinally and a panel holding space in which the panel edge is held by an exterior-facing holding section and an interior-facing holding section on the inner periphery of the hollow section. The hollow section has an interior-facing drain hole formed in the upper wall and an exterior-facing drain hole formed in the exterior wall. The interior-facing drain hole is covered by a resin lower frame. Condensation formed on the panel surface on the indoor side passes through the holes in the resin lower frame, passes through the interior-facing drain hole, enters the hollow section, and is then discharged outside through the exterior-facing drain hole. Because the exterior-facing drain hole is formed in the hollow section, the pressure is essentially equal to that of the outside air. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-180040 Summary of the Invention [Problem to be solved by the invention]

[0004] The exterior drain hole in the hollow portion is the part that is exposed to the outside, so it is preferable from a design standpoint that it be as small as possible. However, if the exterior drain hole is too small, the pressure in the hollow portion and the outside air will not be equal, and if the pressure in the hollow portion becomes lower than the outside air, it will act to draw in water from outside, and if a large amount of water is received, there is a concern that water will enter the room through the interior drain hole.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a fitting that has a suitable design and can prevent water from entering the interior of the room. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the fitting of the present invention is a fitting having a frame body that holds panels, the lower frame of the frame body has a hollow section extending in the longitudinal direction of the lower frame, and a panel holding space above the hollow section that holds the edge of the panel with an exterior-facing holding section and an interior-facing holding section, the exterior wall of the hollow section is between the exterior-facing holding section and the interior-facing holding section, the interior wall of the hollow section is on the interior side of the interior-facing holding section, the hollow section has an interior-facing drain hole formed on the upper wall on the interior side of the interior-facing holding section, and an exterior-facing drain hole formed on the exterior wall, and the bottom wall of the panel holding space has a first hole formed on the exterior side across from the exterior-facing wall of the hollow section, and a second hole formed on the interior side. [Effects of the Invention]

[0007] In the fittings of the present invention, air can flow into the hollow space not only through the exterior drainage hole but also through the first and second holes, and the hollow space is maintained at equal pressure to the outside air, preventing water from seeping into the interior of the room.In addition, the exterior drainage hole can be made smaller, resulting in a desirable design. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a view of a fitting according to an embodiment of the present invention as seen from the inside of a room. [Figure 2] FIG. 1 is a vertical cross-sectional view of a fitting according to an embodiment of the present invention. [Figure 3] 1 is a cross-sectional view of a fixture according to an embodiment of the present invention. [Figure 4] A vertical cross-sectional view of the lower frame and its surrounding area. [Figure 5] An oblique view of the lower frame and its surrounding area. 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 fitting 10. Surfaces and walls along the visible direction may be referred to as "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 stiles, and is 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 referred to as "visible surface" or "visible wall."

[0011] FIG. 1 shows a fitting 10 embodying the present invention, viewed from the inside of a room. The fitting 10 is a so-called fixed window, having a frame 12 installed in a building opening and a panel 14 held on the inner periphery of the frame 12. The panel 14 is made of double-glazed glass or the like. The frame 12 is constructed by assembling an upper frame 16, a lower frame 18, and left and right vertical frames 20 all around. Each frame material is an extruded material and is configured to have a substantially uniform cross-sectional shape along its entire length.

[0012] Figure 2 is a vertical cross-sectional view of the fitting 10. Figure 3 is a horizontal cross-sectional view of the fitting 10. However, since the fitting 10 is basically symmetrical in shape, Figure 3 only shows the portion to the left of the center. Figure 4 is a vertical cross-sectional view of the bottom frame 18 and its surrounding area. Figure 5 is a perspective view of the bottom frame 18 and its surrounding area. Figures 4 and 5 clearly indicate the "inner peripheral side" and "outer peripheral side." For the bottom frame 18, the inner peripheral side is the upper side and the outer peripheral side is the lower side.

[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, 30 mainly form the exterior side, while the resin frames 24, 26, 32 mainly form the interior side, providing excellent insulation and interior design. The metal frames 22, 26, 30 are made of, for example, an aluminum alloy material.

[0014] The frame 12 will be described in the order of vertical frame 20, upper frame 16, and lower frame 18. 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 the edge of the exterior surface of the panel 14 is supported by a backup material 36 and a sealing material 38. 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 their indoor end, and the indoor 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 edge of the indoor surface of the panel 14 via a backup material 36 and a sealant 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 to be connected all around the panel 14.

[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 edges of the 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. Hollow portions 22d and 22e are smaller than the first hollow portion 26a, which will be described later.

[0019] The upper resin frame 24 has two roughly square hollows 24a aligned in the front direction and a protruding piece 24b that protrudes into the room, and engages with the indoor end of the front wall 22a and the tip of the interior-side sight retaining piece 22c. The hollows 24a are located slightly away from the front wall 22a.

[0020] The lower frame 18 will now be described. As described above, the lower frame 18 has 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 has 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 part of the hollow portion 28a. A drain hole (resin frame 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 first hollow portion (hollow portion) 26a and a relatively small second hollow portion 26b adjacent to the outer periphery of the first hollow portion 26a on the outdoor side. The first hollow portion 26a is strong enough to support the weight of the panel 14, etc.

[0022] The metal sill 26 further includes an interior-side projection piece 26c, which extends slightly upward toward the interior of the room from the upper wall 26aa of the first hollow portion 26a, an exterior-side projection piece 26d, which extends toward the exterior of the room, an exterior-side projection retainer 26e that protrudes upward from the exterior end of the exterior-side projection piece 26d, and an interior-side projection retainer 26f that protrudes upward from the middle of the upper wall of the first hollow portion 26a. An engaging portion that engages with the resin sill 28 is provided at the end of the interior-side projection piece 26c. 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-facing retaining portion 26e supports the edge of the exterior surface of panel 14 via a seal pocket, backup material 36, and sealing material 38. The tip of interior-facing retaining portion 26f supports the edge of the interior surface of panel 14 via a part of resin sill 28, backup material 36, and sealing material 38. In other words, at this location, panel retaining space 44 is formed and surrounded by first hollow portion 26a, exterior-facing piece 26d, exterior-facing retaining portion 26e, and interior-facing retaining portion 26f. To distinguish panel retaining space 44 at this location from the others, it is also referred to as panel retaining space 44A.

[0024] The bottom of the panel holding space 44A is formed by a portion of the inner peripheral wall of the first hollow portion 26a and the exterior-facing piece 26d, and this portion is also referred to as the bottom wall 26g. The panel 14 is supported within the panel holding space 44A by a setting block 48. Component pockets 26h (see Figure 4) are provided at the interior-facing lower end of the exterior-facing supporting portion 26e and at the exterior-facing lower end of the interior-facing supporting portion 26f. Heat-generating foam material for fire prevention equipment and the like 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 upper wall of the second hollow portion 26b, the exterior wall 26ab of the first hollow portion 26a, and the exterior projection piece 26d. A first hole 50 that communicates with the outdoor communication space 26i is provided in the exterior projection piece 26d. The first hole 50 is positioned to avoid the component pocket 26h of the exterior projection holder 26e and the setting block 48. A small downward-facing protrusion 26j is provided at the tip of the exterior projection piece 26d.

[0026] The first hollow portion 26a will be further described with reference to Figures 4 and 5. The first hollow portion 26a is an irregular rectangle that is slightly longer in the forward direction, with an aspect ratio of approximately 2:5 in this embodiment. The upper wall 26aa of the first 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 panel 14.

[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 (see FIG. 5), and the 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 first 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 has a symmetrical structure. The first hole 50 is also located in the center of the bottom frame 18 (see Figure 3).

[0030] In this embodiment, the first hole 50 and the second hole 52 have the same shape and are aligned in the forward direction, each consisting of a straight portion with semicircular portions on both ends, and are elongated holes that run along the longitudinal direction of the lower frame 18. The first hole 50 and the second hole 52 have a sufficiently large area so as not to reduce the strength of the lower frame 18. The first hole 50 and the second hole 52 are located near the exterior drain hole 26m, and although the semicircular portions slightly overlap the exterior drain hole 26m in the longitudinal direction, at least the straight portions do not overlap, ensuring strength.

[0031] The first hole 50 is located on the upper surface of the outdoor communication space 26i, and furthermore, the outdoor communication space 26i is provided with a downward protruding piece 26j, so that the first hole 50 is hardly visible from outside. The second hole 52 is also located in a position that is not visible.

[0032] The exterior drain hole 26m is located somewhat recessed from the visible surfaces of the exterior sight retainer 26e and the second hollow portion 26b, but is visible from the front of the exterior communication space 26i. However, the exterior drain hole 26m is sufficiently small compared to the first hole 50 and the second hole 52 and is therefore not noticeable. Furthermore, because the exterior drain hole 26m is small, it does not affect the strength of the exterior wall 26ab to support the panel 14. The exterior drain hole 26m is formed to avoid the component pocket 26h. Reference numeral 54 in each drawing denotes a C-shaped screw hole for screwing to the vertical frame 20.

[0033] The flow of water and air in the bottom frame 18 of the fitting 10 will now be described. Water that has entered the panel retention space 44A is drained through the first hole 50 and the second hole 52 formed in the bottom wall 26g. As indicated by arrow W1, water is drained from the first hole 50 through the outdoor communication space 26i to the outside. As indicated by arrow W2, water is drained from the second hole 52 along the bottom wall 26ad of the first hollow portion 26a, through the outdoor drain hole 26m and the outdoor communication space 26i to the outside. In this way, the first hole 50 and the second hole 52 function as drainage holes. Note that the first hole 50 is formed not only at both ends but also in the center of the bottom frame 18, so water does not accumulate in the center of the panel retention space 44A.

[0034] Condensation water generated on the indoor side of the panel 14, etc., is drained along the path indicated by arrow W3. Specifically, water that seeps into recess 28g flows through check valve 46 in drain hole 28i into outdoor chamber 28e, drips through drain hole 28h onto indoor-side panel 26c, and then drains from check valve 46 in indoor-side drain hole 26k down lower wall 26ad through outdoor drain hole 26m and outdoor-connecting space 26i to the outside. Notch 55 in Figure 5 provides space for installing a condensation drain valve; the valve is installed after the aluminum and plastic sections are assembled. Because first hollow portion 26a is connected to outdoor-connecting space 26i via outdoor drain hole 26m, air flows in as indicated by arrow A1, essentially equalizing the pressure with the outside air.

[0035] Normally, water does not flow in the reverse direction along the path indicated by arrow W3 because outdoor drain hole 26m is located somewhat further back than the visible surfaces of outdoor sight retainer 26e and second hollow portion 26b, first hollow portion 26a is appropriately long in the visible direction, lower wall 26ad, which is the path of W3, is inclined, and indoor drain hole 26k is located high in first hollow portion 26a and is provided with check valve 46.

[0036] However, when the outside air pressure is particularly high, the amount of air indicated by arrow A1 may not be sufficient because the outside drain hole 26m is relatively small, and the first hollow portion 26a may become relatively low pressure. In this case, the first hollow portion 26a acts to suck in outside air, and if a particularly large amount of water is received, there is a concern that water may flow in the opposite direction along the path indicated by arrow W3.

[0037] In contrast, in the fitting 10 of this embodiment, the first hole 50 is formed on the outdoor side of the bottom wall 26g of the panel retention space 44A, sandwiched between the outdoor-side wall 26ab, and the second hole 52 is formed on the indoor side. Therefore, as indicated by arrow A2, outside air enters the panel retention space 44A from the outdoor communication space 26i through the first hole 50 and then through the second hole 52 into the first hollow portion 26a. In other words, the first hole 50 and the second hole 52 function as air circulating holes in addition to draining air. The first hole 50 and the second hole 52 are appropriately large, ensuring a sufficient amount of air. Therefore, even if the outdoor-side drainage hole 26m is small, the first hollow portion 26a is at the same pressure as the outdoor air, eliminating the suction effect and preventing water from flowing backward along the path indicated by arrow W3. The outdoor drain hole 26m, the first hole 50, and the second hole 52 are located near both ends of the lower frame 18, and because they are close to each other, they can cooperate and effectively equalize the pressure in this area with the outside air.

[0038] In this way, the exterior drain hole 26m of the fitting 10 is small, providing a favorable design, and preventing water from seeping into the interior of the room while maintaining the strength of the exterior wall 26ab. Replacing one or both of the above two check valves 46 with a filter also provides the backflow prevention effect.

[0039] 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.

[0040] The fitting 10 of this embodiment is a fitting having a frame body that holds panels, and the lower frame of the frame body has a hollow portion extending in the longitudinal direction of the lower frame, and a panel holding space above the hollow portion that holds the edge of the panel with an exterior-facing holding portion and an interior-facing holding portion, the exterior wall of the hollow portion is between the exterior-facing holding portion and the interior-facing holding portion, the interior wall of the hollow portion is on the interior side of the interior-facing holding portion, the hollow portion has an interior-facing drain hole formed on the upper wall on the interior side of the interior-facing holding portion, and an exterior-facing drain hole formed on the exterior wall, and the bottom wall of the panel holding space has a first hole formed on the exterior side across from the exterior-facing wall of the hollow portion, and a second hole formed on the interior side.

[0041] In such fittings, air can flow into the hollow space not only through the exterior drainage hole but also through the first and second holes, and the hollow space is maintained at equal pressure to the outside air, preventing water from seeping inside the room.In addition, the exterior drainage hole can be made smaller, resulting in a desirable design.

[0042] The lower frame is a composite frame having a metal lower frame that forms the hollow portion and the panel holding space, and a resin lower frame that is positioned inside the panel holding space and on the inner side of the hollow portion and covers the indoor drainage hole, and a resin frame drainage hole may be formed on the inner visible surface of the resin lower frame.

[0043] If a check valve or a filter is provided in the indoor drain hole, backflow prevention is achieved.

[0044] When the outdoor drain hole, the first hole, and the second hole are located near both ends of the lower frame, they can cooperate and effectively equalize the pressure in the hollow space with the outside air.

[0045] Furthermore, if the first hole is located approximately in the center of the lower frame, water will not accumulate in the center.

[0046] It is more preferable from the viewpoint of design if the outdoor drain hole is smaller than the first hole and the second hole. [Explanation of symbols]

[0047] 10 fittings, 12 frame body, 14 panel, 18 bottom frame, 26 metal bottom frame, 26a first hollow portion (hollow portion), 26aa upper wall, 26ab outdoor wall, 26ac indoor wall, 26ad bottom wall, 26d outdoor front view piece, 26e outdoor sight holding portion, 26f indoor sight holding portion, 26g bottom wall, 26i outdoor communication space, 26k indoor drain hole, 26m outdoor drain hole, 28 resin bottom frame, 28h drain hole, 28i drain hole, 36 backup material, 38 sealing material, 44, 44A panel holding space, 46 check valve, 48 setting block, 50 first hole, 52 second hole

Claims

1. A fitting having a frame body that holds a panel, The lower frame of the frame body is a hollow portion extending in the longitudinal direction of the lower frame; a panel holding space in which an exterior side holding portion and an interior side holding portion hold the edge of the panel above the hollow portion; and The outdoor wall of the hollow portion is located between the outdoor sight holding portion and the indoor sight holding portion, The indoor wall of the hollow portion is located indoors relative to the indoor sight retaining portion, The hollow portion has an indoor drain hole formed on the upper wall on the indoor side of the indoor side sight retaining portion, and an outdoor drain hole formed on the outdoor side wall, A first hole is formed on the outdoor side of the bottom wall of the panel holding space, with the outdoor side wall of the hollow portion sandwiched therebetween, and a second hole is formed on the indoor side. A fixture characterized by:

2. The lower frame is a metal lower frame that forms the hollow portion and the panel holding space; a resin lower frame that is disposed on the indoor side of the panel holding space and on the inner peripheral side of the hollow portion and covers the indoor side drain hole; A composite frame having A resin frame drainage hole is formed on the inner peripheral surface of the resin lower frame. The fixture according to claim 1 .

3. The indoor drain hole is provided with a check valve or a filter. The fixture according to claim 1 .

4. The exterior drain hole, the first hole, and the second hole are located near both ends of the lower frame, respectively. The fixture according to claim 1 .

5. The first hole is further located approximately in the center of the lower frame.

5. The fitting according to claim 4.

6. The exterior drain hole is smaller than the first hole and the second hole. The fixture according to claim 1 .

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