Flashing member and flashing structure

Abstract

To provide a throating member easy in construction.SOLUTION: The flashing member 10a is inclined so as to receive water flowing in from the lower frame 18 of the fitting and guide the water to the outdoor side, and includes an inclined portion 42 that covers at least an upper portion of an outdoor side width surface 34a of the base member 34 disposed on a lower side of the lower frame 18, a first placement piece 48 and a second placement piece 50 that are placed on an upper surface 34b of the base member 34, and a first width piece 44 that protrudes downward from the inclined portion 42, abuts on the outdoor side width surface 34a of the base member 34, and is fixed by a screw 64. And a second width piece 46 projecting upward from the indoor side end of the inclined part 42.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a drainage member and a drainage structure that receive water flowing in from the bottom frame of a building material and direct it to the outside of the room. [Background technology]

[0002] A water-repellent member that receives water flowing from the sill of a building and directs it to the outside of the room is known. The water-repellent member shown in Patent Document 1 has an inclined portion that receives water flowing from the sill and a fixing piece that protrudes upward from the inside end of the inclined portion, and the fixing piece is fixed to the building frame with a screw. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-042584 Summary of the Invention [Problem to be solved by the invention]

[0004] The inclined portion of the water-repellent element is located below the sill to catch water flowing in from the sill. Therefore, the fixing piece is also located below the sill, and depending on the projected width of the sill, it may be located quite far back from the visible surface of the sill, making fixing work from outside the room difficult. In addition, since the relative position of the fixing piece varies depending on the projected width of the sill for each installation, careful consideration is required regarding the selection of tools to be used.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a drainage member and a drainage structure that are easy to install. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the objectives, the water-repellent member of the present invention is inclined to receive water flowing in from the bottom frame of the building material and direct it to the outside of the room, and is characterized by having an inclined portion that covers at least the upper part of the outside-facing surface of the base material arranged below the bottom frame, and a first visible piece that protrudes downward from the inclined portion, abuts against the outside-facing surface of the base material, and is fixed by a fixing device. [Effects of the Invention]

[0007] According to the present invention, at least the lower portion of the first sight piece to which the fixing device is attached is in an open space, making installation easy. [Brief explanation of the drawings]

[0008] [Figure 1] This is a partially cross-sectional oblique view of a water drainage structure and a fixture to which the water drainage structure is applied, viewed from an oblique outside of the room. [Figure 2] A vertical cross-sectional view of the drainage structure and lower frame. [Figure 3] FIG. [Figure 4] FIG. 4 is an enlarged view of a first placement piece in the draining member. [Figure 5] FIG. 10 is a view of the drain member from the indoor side. [Figure 6] This is a vertical cross-sectional view of a case where a drainage structure is applied to a lower frame of a different shape. [Figure 7] FIG. 10 is a vertical cross-sectional view of a case where a drainage structure is applied to base materials of different widths. [Figure 8] This is a vertical cross-sectional view of the lower frame and drainage structure when a base material of the same width cannot be placed on the upper surface of the insulation material. [Figure 9] FIG. 10 is a side view of a water draining member according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a draining member and a draining structure according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

[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 door / window 12. 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] 1 is a partially cross-sectional perspective view of a drainage structure 10 and a fitting 12 to which the drainage structure 10 is applied, viewed obliquely from the outside of the room. The drainage structure 10 has a drainage member 10a according to an embodiment of the present invention, and further includes an end cover 10b and a cap 10c. The drainage structure 10 and fitting 12 in this example are bilaterally symmetrical, and FIG. 1 shows only the left portion as viewed from the outside of the room.

[0012] The fitting 12 has a frame 14 fixed to an opening in the wall of a building, and a panel 16 (see Figure 2) attached to the inner periphery of the frame 14. The fitting 12 in this embodiment is a fixed window, but it may also be a hinged door, a sliding window, etc. The panel 16 in this embodiment is double-glazed.

[0013] The frame body 14 is constructed by assembling a lower frame 18, an upper frame (not shown), and left and right vertical frames 20 (only one is shown) around all four sides. Each frame material is an extruded shape made of metal such as aluminum alloy or resin, or a composite material thereof, and each is constructed so as to have a substantially uniform cross-sectional shape along its entire length.

[0014] Figure 2 is a vertical cross-sectional view of the drainage structure 10 and the lower frame 18. The lower frame 18 has a main portion 18a consisting of multiple hollow portions, an indoor retaining portion 18b that protrudes upward from the indoor end of the main portion 18a, a convex hollow portion 18c that protrudes from the main portion 18a to the outdoor side, and two frame fixing pieces 18d and 18e. A batten 22 is attached to the outdoor side of the main portion 18a. The edges of the panels 16 are held in place by the batten 22 and the indoor retaining portion 18b. The upper frame and vertical frame 20 hold the panels 16 in the same way.

[0015] The convex hollow portion 18c is a hollow portion that is slightly long and thin in the projection direction, and its upper surface slopes gently downward toward the outside of the room. A drainage component 24 is provided at the outdoor end of the convex hollow portion 18c. Although a detailed explanation of the path will be omitted, water that enters the lower frame 18 is drained through the drainage component 24. The frame fixing piece 18d protrudes downward from the main portion 18a and abuts against the outdoor-facing surface of the frame 26, where it is fixed with screws 28. The frame fixing piece 18e protrudes indoors from the main portion 18a and abuts against the upper surface of the frame 26, where it is fixed with screws 28. Heat insulation material 30 is located below the frame 26.

[0016] A base material 34 is provided on the outdoor side of the main body 26 and the insulation material 30, below the convex hollow portion 18c. The base material 34 is also called an auxiliary truss. The base material 34 has a projected width and height sufficient for driving screws 64, which will be described later. The base material 34 is made of wood, for example. The base material 34 is provided on the upper surface of the insulation material 36. An exterior wall 40 is provided on the outdoor side of the base material 34 and the insulation material 36, with furring strips 38 between them. The presence of the furring strips 38 separates the base material 34 and the exterior wall 40 slightly, forming a ventilation layer. The lower end of the ventilation layer is connected to the outdoors. The upper end of the exterior wall 40 is located slightly higher than the base material 34. In Figure 2, reference numeral 32 denotes a window frame, and the dashed line 41 denotes a waterproof sheet.

[0017] Next, the draining member 10a will be described. Fig. 3 is a side view of the drainer member 10a, Fig. 4 is an enlarged view of a first mounting piece 48 of the drainer member 10a, and Fig. 5 is a view of the drainer member 10a as seen from the indoor side.

[0018] The water-repellent member 10a is an extruded section of metal such as aluminum alloy, and is configured to have a substantially uniform cross-sectional shape along its entire length. Because the water-repellent member 10a is made of metal, it has high strength, high processing precision, and excellent weather resistance. Because the water-repellent member 10a protrudes further outside the room than the convex hollow portion 18c of the bottom frame 18, a metal material with excellent weather resistance is preferable. However, depending on the conditions, a resin material may also be used. Because the metal water-repellent member 10a protrudes further outside the room and tends to be more susceptible to temperature increases and decreases compared to the bottom frame 18, it is desirable to install it so that it does not come into contact with the bottom frame 18.

[0019] The water draining member 10a has an inclined portion 42, a first visible piece 44, a second visible piece 46, a first mounting piece (mounting portion) 48, a second mounting piece (mounting portion) 50, and a water draining piece 52. The inclined portion 42 extends at an angle so as to receive water flowing in from the convex hollow portion 18c of the lower frame 18 and the drainage component 24 and direct it to the outside of the room, and covers at least the upper part of the outside-facing visible surface 34a of the base material 34.

[0020] The first sight piece 44 protrudes downward from the middle of the inclined portion 42. The first sight piece 44 protrudes downward further than the water draining end 52a, which is the lower end of the water draining piece 52. A shallow groove 44a is formed on the exterior side surface near the lower end of the first sight piece 44. The groove 44a serves as a positioning point when driving the screw (fixing tool) 64 (see Figure 2). The groove 44a is located slightly below the water draining end 52a.

[0021] The second sight piece 46 protrudes slightly upward from the indoor end of the inclined portion 42. A shallow groove 46a is formed on the outdoor side surface of the second sight piece 46 at approximately the middle height. The groove 46a serves as a positioning point when driving screws 64 in a water-repellent structure 70 (see FIG. 8) of a later-described embodiment.

[0022] The first mounting piece 48 and the second mounting piece 50 are mounting portions that are placed on the upper surface 34b of the base material 34. The first mounting piece 48 protrudes slightly toward the interior from the middle of the first sight piece 44. The first mounting piece 48 is not an independent structure, but is connected to the first sight piece 44 via the sloped portion 42, which is a rational design. A shallow break-off groove 54 is formed in the first sight piece 44 directly below where the first mounting piece 48 protrudes. The break-off groove 54 is located in the recessed corner formed by the underside of the first mounting piece 48 and the first sight piece 44, and is oriented slightly upward toward the exterior. The first sight piece 44 and the first mounting piece 48 form a T-shape, but by breaking off the lower portion of the first sight piece 44 at the break-off groove 54, the upper portion of the first sight piece 44 and the first mounting piece 48 form an L-shape (see Figure 8). Depending on the design conditions, the break-off groove 54 may be formed so that it can be broken off by hand, or it may be formed so that it can be broken off by a tool.

[0023] The second support piece 50 is continuous with the second visible piece 46 and protrudes downward from the interior end of the inclined portion 42. The upper surface 34b of the base material 34 is essentially horizontal, and the second support piece 50 protrudes to the same height as the first support piece 48. The lower end of the second support piece 50 bulges slightly toward the exterior. The first and second support pieces 48 and 50 are spaced apart from each other in the forward direction, allowing for stable placement on the base material 34. While the support portion of the water-repellent member 10a on the base material 34 is composed of the first and second support pieces 48 and 50, this is not a limitation. For example, the ends of the first and second support pieces 48 and 50 may be connected, or an inverted T-shaped support portion separate from the support pieces 48 and 50 may be provided below the inclined portion 42. Depending on the shape, only one of the first and second support pieces 48 and 50 may be provided.

[0024] Water separator 52 protrudes downward from the outdoor end of inclined portion 42 and is positioned at an appropriate distance (for example, about 30 mm) from exterior wall 40, and serves to guide water that flows diagonally down inclined portion 42 downward and drips from water separator 52a, as well as to hide the upper end of exterior wall 40. If the inclination angle of inclined portion 42 is steep, water separator 52 may be omitted. In that case, the outdoor end of inclined portion 42 becomes water separator 52a, as shown by the imaginary line.

[0025] A drain hole 56 is formed in the first sight piece 44 at the same height as the first mounting piece 48. A drain notch 58 is formed in the lower end of the second sight piece 46. Water that seeps into the space inside the room through the second sight piece 46 is drained by the drain notch 58 into the space between the first sight piece 44 and the second sight piece 46. This water is then drained outside the room through the drain hole 56 from the upper surface 34b of the base material 34. Multiple drain holes 56 and drain notches 58 are formed in the same position when viewed from the inside of the room (see Figure 5). The drain holes 56 and drain notches 58 are formed in positions that avoid both ends of the water-repellent member 10a. Multiple horizontally elongated auxiliary holes 59 are formed in the first sight piece 44 along the longitudinal direction of the water-repellent member 10a. The auxiliary holes 59 are holes for fixing with screws 64.

[0026] The projected length of the inclined portion 42 of the water draining member 10a is approximately 120 mm, approximately 65 mm from the first spot piece 44 on the outside of the room, and approximately 55 mm from the first spot piece 44 on the inside of the room. The total height of the second spot piece 46 and the second mounting piece 50 is determined, for example, according to the standard dimensions of the frame fixing piece 18d (see Figure 2), and is approximately 30 mm in this embodiment. The height of the first spot piece 44 is approximately 40 mm, which is longer than the total height of the second spot piece 46 and the second mounting piece 50. The height of the water draining piece 52 is approximately 25 mm. The distance from the inclined portion 42 of the first spot piece 44 to the first mounting piece 48 is approximately 15 mm. The dimensions of each part are not limited to these.

[0027] Returning to Figure 2, the underside of the first mounting piece 48 and the lower end of the second mounting piece 50 of the water-repellent member 10a rest against the upper surface 34b of the base material 34. Furthermore, the protruding corner formed by the exterior facing surface 34a and upper surface 34b of the base material 34 is positioned against the recessed corner formed by the lower surface of the first mounting piece 48 and the first recessed piece 44. For example, the water-repellent member 10a can be initially positioned slightly at an angle, with the lower end of the first recessed piece 44 abutting against the exterior facing surface 34a of the base material 34, and then rotated clockwise to align the recessed corner and protruding corner. The first recessed piece 44 abuts against the exterior facing surface 34a of the base material 34 and is secured from the exterior side by screws 64. Multiple screws 64 are provided along the longitudinal direction of the water-repellent member 10a. The screws 64 are appropriately long to ensure sufficient fastening strength.

[0028] After installing the water-repellent member 10a, a backup material 60 is installed between the convex hollow portion 18c and the inclined portion 42, and a sealant 62 is poured in. The backup material 60 may be abutted against the second spot piece 46. After this, the exterior wall 40 is installed. The second spot piece 46 can prevent water from flowing back up the inclined portion 42 into the interior of the room due to heavy rain, etc., if the sealant 62 deteriorates or is installed improperly.

[0029] The first sight piece 44 is located somewhat further outside the room than the second sight piece 46, which is the indoor-side end of the water flashing member 10a, and is away from the insulation material 30, so the screws 64 do not reach the insulation material 30. Because the base material 34 is located below the frame fixing piece 18d of the bottom frame 18, the screws 64 are offset in the vertical direction and do not come into contact with the frame fixing piece 18d, so the screws 64 do not form a thermal bridge. The second sight piece 46 and second mounting piece 50 are away from the convex hollow portion 18c and frame fixing piece 18d, so they do not form a thermal bridge.

[0030] The second sight piece 46 is recessed from the sill sight surface (where the drainage component 24 is located) and is located in the narrow gap between the convex hollow portion 18c and the inclined portion 42, making it difficult to secure the screw from the outside. The inclined portion 42 is also moderately long, which can interfere with screw driving. In contrast, in the flashing member 10a of this embodiment, the first sight piece 44, which is used to drive the screws, is located significantly closer to the installer than the second sight piece 46, and at least the lower portion is open, making installation easier. The first sight piece 44 is not too far from the exterior end of the inclined portion 42, so the inclined portion 42 does not interfere with the screw driving operation. The first sight piece 44 protrudes below the flashing edge 52a, and the positioning groove 44a for the screw 64 (see Figure 3) is located slightly below the flashing edge 52a, allowing the screw 64 to be driven horizontally.

[0031] The first sight piece 44 preferably protrudes below the flashing edge 52a to allow for the installation of screws 64, and is desirably long enough to abut over a relatively wide area against the exterior sight surface 34a of the base material 34. The combined length of the second sight piece 46 and the second mounting piece 50, while dependent on the presence and length of the frame fixing piece 18d, is preferably as short as possible to narrow the gap between the convex hollow portion 18c and the base material 34. Therefore, in the flashing member 10a, the first sight piece 44 is longer than the combined length of the second sight piece 46 and the second mounting piece 50. Depending on the design, the second sight piece 46 can be omitted to further narrow the gap between the convex hollow portion 18c and the base material 34.

[0032] FIG. 6 is a vertical cross-sectional view of the case where the flashing structure 10 is applied to a lower frame 18A having a different shape from the lower frame 18 described above. In the following modified examples, the same elements as those described above are given the same reference numerals, and detailed descriptions thereof will be omitted. The lower frame 18A is provided with a convex hollow portion 18Ac instead of the convex hollow portion 18c described above. The convex hollow portion 18Ac protrudes further toward the outside of the room than the convex hollow portion 18c. In this case, the second sight piece 46 is positioned further back than in the example of FIG. 2, making screwing even more difficult, but the flashing member 10a is fixed using the first sight piece 44, making installation easier.

[0033] Figure 7 is a vertical cross-sectional view of the water flashing structure 10 applied to a base material 34A with a different width than the base material 34. The base material 34A and the insulation material 36A have a smaller projected width than the base material 34 and the insulation material 36. In this case, the second sight piece 46 is positioned further back than in the example shown in Figure 2, making screw installation more difficult. However, the water flashing member 10a is secured to the first sight piece 44, making installation easier. Thus, even when the water flashing member 10a is applied to a different target, the target surface for screw installation of the first sight piece 44 is the outdoor-facing sight surface 34a of the base material 34, making installation easy from the outside. Because the screw installation position remains constant relative to the slope 42 and the water flashing piece 52, the same tools can be used each time, eliminating the need for careful tool selection or the need to prepare multiple tools.

[0034] 8 is a vertical cross-sectional view of the lower frame 18 and drainage structure 70 in a case where a base material 34 of the same width cannot be provided on the upper surface of the insulation material 36. In this case, since the upper end position of the insulation material 36 is relatively high, a base material 34 as described above cannot be provided on its upper surface, and instead a base material 34B with a smaller projected width is fixed to the main body 26 with screws 66 via a spacer 65. The base material 34B fills the gap between the convex hollow portion 18c and the insulation material 36.

[0035] In this case, the first spot piece 44 cannot be used to secure the flashing member 10a to the base material 34B, so the second spot piece 46 is secured to the base material 34B. To do this, the first spot piece 44 of the flashing member 10a is snapped off along the snap groove 54 (see FIG. 3). The second spot piece 46 is then inserted so that it abuts against the base material 34B, and the first and second mounting pieces 48 and 50 are placed on the insulation material 36. If necessary, an auxiliary member 36B is provided between the mounting pieces 48 and 50 and the insulation material 36. The second spot piece 46 is then secured to the base material 34B from the exterior side with a screw 64, and then a backup material 60 and a sealant 62 are provided. Thus, the flashing member 10a is versatile and can be used even when the base material 34B is located indoors beyond the exterior end of the convex hollow portion 18c.

[0036] FIG. 9 is a side view of a modified water-repellent member 10Aa. Compared to the aforementioned water-repellent member 42, the inclined portion 42A of the water-repellent member 10Aa has a shorter distance between the first and second spot pieces 44 and 46. The projected length of the inclined portion 42A is approximately 90 mm, and the distance from the first spot piece 44 to the interior side is approximately 25 mm. The water-repellent member 10Aa is suitable for use when the projected width of the base material 34 is particularly small. The water-repellent member 10a and the water-repellent member 10Aa have the same shape for the exterior portion, including the first spot piece 44, and the same manufacturing mold can be used. The process of fixing the water-repellent member 10Aa to the base material 34 with screws 64 can be performed in almost the same way as for the water-repellent member 10a.

[0037] 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.

[0038] The water drainage member in this embodiment is inclined to receive water flowing in from the bottom frame of the building material and direct it to the outside of the room, and is characterized by having an inclined portion that covers at least the upper part of the outside visible surface of the base material arranged below the bottom frame, and a first visible piece that protrudes downward from the inclined portion, abuts against the outside visible surface of the base material, and is fixed by a fixing device.

[0039] Such a water draining member is easy to install because at least the lower part of the first spot piece to which the fixing device is attached is in an open space.

[0040] The base material may have a mounting portion that is placed on an upper surface of the base material.

[0041] The outdoor end of the inclined portion or the lower end of the water-draining piece protruding downward from the outdoor end forms the water-draining end, and if the first visible piece protrudes downward beyond the water-draining end, the fixing device can be fixed horizontally, making installation even easier.

[0042] The mounting portion has a first mounting piece that protrudes toward the interior of the room from the middle of the first visible piece, and a second mounting piece that protrudes downward from the interior end of the inclined portion, so that it can be placed stably on the base material.

[0043] The first guide piece may have a break-off groove formed directly below the location where the first placement piece protrudes, and a second guide piece protruding upward from the interior end of the inclined portion. By breaking off the break-off groove, the range of applications is expanded.

[0044] The first sight piece may be longer than the combined length of the second sight piece and the second mounting piece. A longer first sight piece stably secures the fixture, while a shorter combined length of the second sight piece and the second mounting piece narrows the gap between the sill and the base material.

[0045] If a drainage hole is formed in the first visible piece, water from the upper surface of the base material can be drained to the outside of the room.

[0046] The water-repellent structure according to this embodiment is characterized in that the water-repellent member has an inclined portion that receives water flowing from the sill of a building and directs it to the outside, covering at least the upper portion of the exterior-facing surface of a base material disposed below the sill, a first spot piece that protrudes downward from the inclined portion, a first mounting piece that protrudes indoors from the middle of the first spot piece and rests on the top surface of the base material, a second mounting piece that protrudes downward from the indoor-side end of the inclined portion and rests on the top surface of the base material, a breaking groove formed in the first spot piece directly below the point where the first mounting piece protrudes, and a second spot piece that protrudes upward from the indoor-side end of the inclined portion, and the first spot piece is broken off in the breaking groove, and the second spot piece is fixed to the building frame with a fastener. Breaking off the breaking groove expands the range of applications. [Explanation of symbols]

[0047] 10,70 Water drainage structure, 10a,10Aa Water drainage member, 10b Edge cover, 10c Cap, 14 Frame body, 18,18A Lower frame, 30 Heat insulation material, 34,34A,34B Base material, 34a Outdoor facing surface, 34b Top surface, 36,36A Heat insulation material, 42,42A Inclined portion, 44 First facing piece, 46 Second facing piece, 48 First mounting piece, 50 Second mounting piece, 52 Water drainage piece, 52a Water drainage edge, 64 Screw (fixing device)

Claims

1. a sloped portion that is inclined to receive water flowing from the lower frame of the building material and direct it to the outside of the room, and that covers at least the upper part of the exterior visible surface of the base material disposed below the lower frame; a first spot piece that protrudes downward from the inclined portion and abuts against the outdoor spot surface of the base material and is fixed by a fixing device; have A water draining member characterized by:

2. A mounting portion is placed on the upper surface of the base material. The draining member according to claim 1 .

3. The outdoor end of the inclined portion or the lower end of the water cutting piece protruding downward from the outdoor end forms a water cutting edge, The first projection piece projects downward beyond the draining edge. The draining member according to claim 1 .

4. The placement section is a first placement piece that protrudes from the middle of the first sight piece toward the indoor side; A second placement piece protruding downward from the indoor end of the inclined portion; have The draining member according to claim 2 .

5. a break-off groove formed in the first guide piece directly below a portion from which the first placement piece projects; A second spot piece protruding upward from the indoor end of the inclined portion; have The draining member according to claim 4 .

6. The first piece has a drain hole formed therein. The draining member according to claim 1 .

7. a sloped portion that is inclined to receive water flowing from the lower frame of the building material and direct it to the outside of the room, and that covers at least the upper part of the exterior visible surface of the base material disposed below the lower frame; a first spot piece protruding downward from the inclined portion; a first placement piece that protrudes from the middle of the first placement piece toward the interior and is placed on the upper surface of the base material; A second placement piece that protrudes downward from the indoor end of the inclined portion and is placed on the upper surface of the base material; a break-off groove formed in the first guide piece directly below a portion from which the first placement piece projects; A second spot piece protruding upward from the indoor end of the inclined portion; The first piece of the water dripping member is broken off in the breaking groove, and the second piece is fixed to the building frame with a fixing device. A water drainage structure characterized by:

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