Draining member, draining member for corner, and production method of draining member for corner

Abstract

To provide a draining member with resistance to damage upon contact by objects and the like.SOLUTION: The present invention is a draining member 1 arranged on a building. The draining member 1 is provided with a fixation piece 2, a downward inclined piece 3, an apron piece 4, and a folded piece 5. The fixation piece 2 is fixed on a substrate B of the building. The downward inclined piece 3 extends from a lower end edge 20 of the fixation piece 2 to the outer side of the substrate B. The apron piece 4 extends from an outside tip end edge 30 of the downward inclined piece 3 to the lower side. The folded piece 5 extends from a lower end edge of the apron piece 4 to the inner side. A boundary part between the apron piece 4 and the downward inclined piece 3 is formed in an arc shape in cross section.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a water-repellent member, a corner water-repellent member, and a method for manufacturing the corner water-repellent member. More specifically, the present invention relates to a water-repellent member, a corner water-repellent member, and a method for manufacturing the corner water-repellent member, which are accessories for buildings. [Background technology]

[0002] Patent Document 1 describes a base flashing for an external corner. This base flashing for an external corner is provided at the external corner of a building and includes a base portion and a rising surface, and is formed into a three-dimensional shape by cutting a flat metal plate into a predetermined shape and bending it, and the base portion includes a curved surface portion that covers the external corner in a curved shape and a flat side surface portion that is not formed by a curved surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7052177 Summary of the Invention [Problem to be solved by the invention]

[0004] It has been desired that a flashing member such as the corner base flashing of Patent Document 1 would not cause damage to objects or the like when it comes into contact with the flashing member when installed in a building.

[0005] The present invention has been made in view of the above-mentioned circumstances, and aims to provide a draining member, a corner draining member, and a method for manufacturing a corner draining member that is less likely to damage items, etc., even when it comes into contact with them. [Means for solving the problem]

[0006] The present invention is a drip edge installed in a building, comprising a fixed piece fixed to the base of the building, a downward sloping piece extending outward from the lower edge of the fixed piece, a front flap piece extending downward from the outer tip edge of the downward sloping piece, and a folded piece extending inward from the lower edge of the front flap piece, and the boundary portion of the front flap piece with the downward sloping piece is formed in an arc-shaped cross section.

[0007] The present invention also provides a corner drip rack that is installed at the corner of a building, comprising a pair of fixed pieces that are fixed to the corner of the building's base, a pair of downwardly sloping pieces that extend outward from the lower edges of the pair of fixed pieces, a pair of front flap pieces that extend downward from the outer tip edges of the pair of downwardly sloping pieces, and a pair of folded pieces that extend inward from the lower edges of the pair of front flap pieces, and the boundary between the pair of front flap pieces and the pair of downwardly sloping pieces is formed in an arc-shaped cross section.

[0008] The present invention also provides a method for manufacturing a corner drip-proof panel for use in a corner of a building, comprising a cutting process for forming a processed member by removing a portion of a rectangular metal plate and a bending process for forming the processed member into a three-dimensional shape corresponding to the corner of the building's base. The processed member includes a right piece located to the right of an imaginary center line in a front view, a left piece located to the left of the imaginary center line, and a bent piece located between the right piece and the left piece. The right piece has, in order from top to bottom, a right fixed piece, a right downward-sloping piece, a right front-hanging piece, and a right folded piece. The left piece has, in order from top to bottom, a left fixed piece, a left downward-sloping piece, a left front-hanging piece, and a left folded piece. The right piece or the left piece has a fixed piece overlapping portion. The fixed piece overlapping portion extends toward the imaginary center line of the right fixed piece or extends toward the imaginary center line of the left fixed piece. The right piece or the left piece has a downwardly inclined piece overlapping portion. The downwardly inclined piece overlapping portion extends toward the imaginary center line of the right downwardly inclined piece, or extends toward the imaginary center line of the left downwardly inclined piece. The right piece or the left piece has a folded piece overlapping portion. The folded piece overlapping portion extends toward the imaginary center line of the right folded piece, or extends toward the imaginary center line of the left folded piece. The bending portion has a plurality of saw blade pieces formed in a saw-tooth shape at the upper end and the lower end. The cutting process includes a process of cutting out approximately the center of the metal plate in the left-right direction so as to leave the right piece, the left piece, and the bending process portion. The folding steps include a fixing piece folding step of making a valley fold at the boundary between the right fixing piece and the right downward inclined piece and at the boundary between the left fixing piece and the left downward inclined piece, an upper part folding step of making a mountain fold at the boundary between the right downward inclined piece and the right front flap piece and at the boundary between the left downward inclined piece and the left front flap piece, a lower part folding step of making a mountain fold at the boundary between the right front flap piece and the right turned piece and at the boundary between the left front flap piece and the left turned piece, and a bent part folding step of making a mountain fold at the bent part, which is the boundary between the right front flap piece and the left front flap piece, in a mountain shape of a circular cross section. The fixing piece overlapping part extended from either the right fixing piece or the left fixing piece is brought into contact with the other.The downward inclined piece overlapping portion extending from one of the right downward inclined piece or the left downward inclined piece is brought into contact with the other. The folded piece overlapping portion extending from one of the right folded piece or the left folded piece is brought into contact with the other. The saw blade pieces are formed by bringing the opposing side surfaces in the left-right direction into contact with each other. [Effects of the Invention]

[0009] The draining member and corner draining member of the present invention have the advantage that even if an article or the like comes into contact with the portion formed in an arc-shaped cross section, it is unlikely to be damaged.

[0010] The method for manufacturing a corner drainer of the present invention has the advantage that it is possible to easily manufacture a corner drainer whose arc-shaped cross section is less likely to damage items or the like even if they come into contact with the section. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a drainer and a corner drainer according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the drainer member according to the embodiment of the present invention, as seen from the front. [Figure 3] FIG. 3 is a perspective view showing the drainer member according to the embodiment of the present invention as seen from behind. [Figure 4] FIG. 4 is a side view showing the drainer member according to the embodiment of the present invention. [Figure 5] FIG. 5 is a plan view showing a drainer member according to an embodiment of the present invention. [Figure 6] FIG. 6 is a perspective view of the corner drainer member according to the embodiment of the present invention, as seen from the front. [Figure 7] FIG. 7 is a perspective view showing the corner drainer member according to the embodiment of the present invention, as viewed from behind. [Figure 8] FIG. 8 is a plan view showing a corner drainer according to an embodiment of the present invention. [Figure 9] FIG. 9 is a cross-sectional view taken along line AA in FIG. [Figure 10] FIG. 10 is a cross-sectional view taken along the line BB in FIG. [Figure 11] Fig. 11A is a front view showing a processed member used in a corner drainer according to an embodiment of the present invention, and Fig. 11B is an enlarged view showing a part of the processed member. [Figure 12] FIG. 12 is a front view showing a metal plate used in the corner drainer according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] (Embodiment 1) The flashing member 1 according to this embodiment is installed in a building, and as shown in FIG. 1, is installed, for example, on the foundation G of the building. The flashing member 1 reduces the amount of rainwater sprayed onto the foundation G and makes it difficult for rainwater flowing down the outer surface of the exterior wall material W to flow around into the foundation G. The flashing member 1 is installed in a location (general area) other than the corner (protruding corner) D of the building. The flashing member 1 is used not only in ordinary houses, but also in buildings such as buildings and factories. In FIG. 1, the flashing member 1 is located above and in front of the foundation G and is used as a foundation flashing member located below the exterior wall material W, but is not limited to this, and the flashing member 1 can also be installed under a window.

[0013] The draining member 1 is formed long and extends in the left-right direction. The left-right direction is a substantially horizontal direction when the building is viewed from the outside. The draining member 1 can be formed by bending a metal plate. Examples of the metal plate that can be used include stainless steel plate, galvanized steel plate, aluminum-zinc alloy plated steel plate, painted steel plate, iron plate, aluminum plate, copper plate, and titanium plate. The thickness of the metal plate may be, for example, 0.2 to 1.5 mm, preferably 0.3 to 0.5 mm, but is not limited thereto. The metal plate can be bent using, but is not limited to, bending, roll forming, extrusion, or the like.

[0014] 2 to 5, the draining member 1 has a fixed piece 2, a downward inclined piece 3, a front hanging piece 4, and a folded piece 5. The draining member 1 has a constant cross-sectional shape over its entire length in the left-right direction.

[0015] The fixing piece 2 is formed in a strip shape that is long in the left-right direction when viewed from the front, and is formed with its thickness direction in the front-to-back direction. The front surface of the fixing piece 2 is a flat surface. The front surface of the fixing piece 2 is the surface that faces forward (the surface that faces outdoors) when the water dripping member 1 is attached to a building.

[0016] As shown in Fig. 5, the flashing member 1 is attached to a base B of a building. At this time, the rear surface of the fixing piece 2 faces the front surface (outdoor side) of the base B, and the fixing piece 2 is fixed to the base B with nails, screws, double-sided tape, or the like. Here, the base B is a base for attaching the exterior wall material W of the building, and is, for example, a base, a pillar, a stud, a furring strip, or a wall base board. In the flashing member 1 of this embodiment, the base B can be a stud, a base, or a furring strip, but is not limited to this.

[0017] The downward inclined piece 3 is formed in a strip shape that is long in the left-right direction when viewed from above. The upper surface of the downward inclined piece 3 is a flat surface. The downward inclined piece 3 is formed on the lower end edge 20 of the fixed piece 2 over the entire length in the left-right direction.

[0018] When the water dripping member 1 is attached to a building, the downward inclined piece 3 extends outward from the lower end edge 20 of the fixed piece 2 toward the base B of the building. In other words, the downward inclined piece 3 extends from the lower end edge 20 of the fixed piece 2 toward approximately the front (outdoor side) of the base B.

[0019] The downward inclined piece 3 is formed so as to slope downward from the lower edge 20 of the fixed piece 2 toward the front. In this case, the downward inclined piece 3 slopes downward from the end on the lower edge 20 side toward the outer tip edge 30. The outer tip edge 30 is the outer (front) end of the downward inclined piece 3. The angle θ1 between the upper surface of the downward inclined piece 3 and the front surface of the fixed piece 2 may be greater than 90° and less than 180°, and can be set to, for example, 91° to 120°, or preferably 92° to 100°.

[0020] The front flap piece 4 extends downward from the outer tip edge 30 of the downward inclined piece 3. When viewed from the front, the front flap piece 4 is formed long in the left-right direction. The front flap piece 4 is formed over the entire length of the downward inclined piece 3 in the left-right direction.

[0021] The front flap piece 4 has a flat plate-shaped flat portion 44, a boundary portion 41 formed on the upper side of the flat portion 44, and a boundary portion 42 formed on the lower side of the flat portion 44. An end of the upper boundary portion 41 is connected to the outer leading edge 30 of the downward inclined piece 3. An end of the lower boundary portion 42 is connected to the outer leading edge 50 of the folded piece 5. The outer leading edge 50 is the outer (front) end of the folded piece 5. Therefore, the flat portion 44 is connected to the outer leading edge 30 of the downward inclined piece 3 via the upper boundary portion 41, and the upper boundary portion 41 is formed between the flat portion 44 and the outer leading edge 30 of the downward inclined piece 3. Furthermore, the flat portion 44 is connected to the outer leading edge 50 of the folded piece 5 via the lower boundary portion 42, and the lower boundary portion 42 is formed between the flat portion 44 and the outer leading edge 50 of the folded piece 5.

[0022] The upper boundary portion 41 and the lower boundary portion 42 are formed to have an arc-shaped cross section when cut along a plane perpendicular to the left-right direction. As a result, the surfaces of the upper boundary portion 41 and the lower boundary portion 42 are smoothly curved, making them less likely to scratch objects or the like when they come into contact with them than if the upper boundary portion 41 and the lower boundary portion 42 were formed with sharp corners. The radius of curvature of the upper boundary portion 41 and the lower boundary portion 42 is preferably 2 to 8 mm, and more preferably 4 to 6 mm.

[0023] The folded piece 5 extends inward from the lower edge of the front flap piece 4. The lower edge of the front flap piece 4 is the end of the lower boundary portion 42, which is connected to the outer tip edge 50 of the folded piece 5. The folded piece 5 is formed long in the left-right direction when viewed from below. The underside of the folded piece 5 is flat. The folded piece 5 is formed on the lower edge of the front flap piece 4 over the entire length in the left-right direction.

[0024] When the drip rack 1 is attached to a building, the folded piece 5 extends inward (rearward) from the lower edge of the front hanging piece 4. In other words, the folded piece 5 extends from the lower edge of the front hanging piece 4 toward the base B.

[0025] A protruding piece 6 is provided on the rear end edge of the folded piece 5. The protruding piece 6 protrudes obliquely upward and forward from the rear end edge of the folded piece 5. The protruding piece 6 is formed on the rear end edge of the folded piece 5 over the entire length in the left-right direction.

[0026] The water-repellent member 1 of this embodiment is installed on the outdoor surface of the base B, as shown in Figure 5. The water-repellent member 1 is formed so that the upper surface of the downward-sloping piece 3 is inclined downward toward the front relative to the horizontal. Therefore, the water-repellent member 1 smoothly drains rainwater that flows down from the exterior wall material W and hits the upper surface of the downward-sloping piece 3, allowing it to drain along the front surface of the front hanging piece 4.

[0027] (Embodiment 2) <Corner drainer> The corner drainer 11 according to this embodiment differs in appearance from the drainer 1 according to embodiment 1. Hereinafter, the same components as those in embodiment 1 will be assigned the same reference numerals and explanations thereof may be omitted as appropriate. The components described in embodiment 2 can be applied in appropriate combination with the components described in embodiment 1.

[0028] The corner flashing member 11 according to this embodiment is installed in a building, and as shown in FIG. 1, is installed, for example, on the foundation G of the building. The corner flashing member 11 reduces rainwater spraying onto the foundation G at the corner D of the building, and makes it difficult for rainwater flowing down the outer surface of the projected corner member K to flow around into the foundation G. The corner flashing member 11 is installed in the corner D of the building. The corner flashing member 11 is used in general houses as well as in buildings such as buildings and factories.

[0029] In FIG. 1, the corner flashing member 11 is positioned above and in front of the foundation G and is used as a flashing member for a base corner located below the projected corner member K. The flashing member 1 of embodiment 1 is connected to one end of the corner flashing member 11. The flashing member 1 of embodiment 1 is also connected to the other end of the corner flashing member 11. In this case, the end of the flashing member 1 is inserted into the end of the corner flashing member 11.

[0030] The corner drainer 11 is formed so as to extend in two directions that are approximately perpendicular to each other in a plan view (viewed from above). When one of the two directions is the left-right direction, the other is the front-back direction. The corner drainer 11 can be formed by bending a metal plate similar to that of the first embodiment.

[0031] As shown in Figures 6 to 10, the corner drainer 11 has a pair of fixed pieces 12, a pair of downward inclined pieces 13, a pair of front hanging pieces 14, and a pair of folded pieces 15. The corner drainer 11 has a generally L-shaped configuration in plan view. The fixed piece 12 of the corner drainer 11 corresponds to the fixed piece 2 of the drainer 1 of embodiment 1. Similarly, the downward inclined piece 13, front hanging piece 14, and folded piece 15 of the corner drainer 11 correspond to the downward inclined piece 3, front hanging piece 4, and folded piece 5 of the drainer 1 of embodiment 1, respectively.

[0032] Each of the pair of fixing pieces 12 is formed in a flat plate shape. One fixing piece 12 has an outer surface that is parallel to the vertical and horizontal directions, and is formed with its thickness direction extending in the front-to-back direction. The other fixing piece 12 has an outer surface that is parallel to the vertical and horizontal directions, and is formed with its thickness direction extending in the left-to-right direction. The outer surface of the fixing piece 12 is a flat surface. The outer surface of the fixing piece 12 is the surface that faces outdoors when the corner drip panel 11 is attached to a building.

[0033] As shown in Figure 8, the corner flashing member 11 is attached to a base B of a building. At this time, the rear surfaces of the pair of fixing pieces 12 face the exterior side of the base B, and the pair of fixing pieces 12 are fixed to the base B with nails, screws, double-sided tape, or the like. Here, the base B is a base for attaching the exterior wall material W and the corner piece K of the building, and is, for example, a sill, a pillar, a partition wall, a furring strip, or a wall base board. In the corner flashing member 11 of this embodiment, the base B can be a pillar, a sill, or a furring strip, but is not limited to this.

[0034] Each of the pair of downward inclined pieces 13 is formed in a flat plate shape. The upper surfaces of the pair of downward inclined pieces 3 are flat surfaces. One of the downward inclined pieces 13 is formed in a roughly trapezoidal shape in a plan view, long in the left-right direction and short in the front-rear direction, with the thickness direction being in the up-down direction. The other downward inclined piece 13 is formed in a roughly trapezoidal shape in a plan view, short in the left-right direction and long in the front-rear direction, with the thickness direction being in the up-down direction. One of the downward inclined pieces 13 is formed on the lower edge of one of the fixed pieces 12 over its entire length in the left-right direction. The other downward inclined piece 13 is formed on the lower edge of the other fixed piece 12 over its entire length in the left-right direction.

[0035] When the corner drip rack 11 is attached to a building, the pair of downward inclined pieces 13 extend outward from the lower end edges of the pair of fixing pieces 12 to the outside of the base B of the building. In other words, the pair of downward inclined pieces 13 extend from the lower end edges of the pair of fixing pieces 2 to the outside side of the base B (in the left-right and front-back directions).

[0036] One of the downwardly inclined pieces 13 is formed so as to slope downward outward from the lower edge of one of the fixed pieces 12. In this case, the one of the downwardly inclined pieces 13 slopes downward from the end on the lower edge side toward the outer tip edge. The outer tip edge is the outer end of the one of the downwardly inclined pieces 13. The angle θ2 between the upper surface of the one of the downwardly inclined pieces 13 and the outer surface of the one of the fixed pieces 12 may be greater than 90° and less than 180°, but can be set to, for example, 91° to 120°, preferably 92° to 100°. Furthermore, similar to the one of the downwardly inclined pieces 13, the other of the downwardly inclined pieces 13 is also formed so as to slope downward outward from the lower edge of the other of the fixed pieces 12.

[0037] The pair of front flap pieces 14 extend downward from the outer tip edges of the pair of downward inclined pieces 13. One of the front flap pieces 14 is formed to extend in the left-right direction when viewed from the front-to-back direction. One of the front flap pieces 14 is formed to extend over the entire length of one of the downward inclined pieces 13 in the left-to-right direction. The other front flap piece 14 is formed to extend in the front-to-back direction when viewed from the left-to-right direction. The other front flap piece 14 is formed to extend over the entire length of the other downward inclined piece 13 in the front-to-back direction.

[0038] The pair of front flap pieces 14 each have a pair of flat plate-shaped flat portions 144, a pair of boundary portions 141 formed on the upper sides of the pair of flat plate portions 144, and a pair of boundary portions 142 formed on the lower sides of the pair of flat plate portions 144. Ends of the pair of upper boundary portions 141 are connected to the outer leading edges 30 of the pair of downward inclined pieces 13. Ends of the pair of lower boundary portions 142 are connected to the outer leading edges of the pair of folded pieces 15. These outer leading edges are the outer ends of the pair of folded pieces 15. Therefore, the pair of flat plate portions 144 are connected to the outer leading edges of the pair of downward inclined pieces 13 via the pair of upper boundary portions 141, and a pair of upper boundary portions 41 are formed between the pair of flat plate portions 144 and the outer leading edges 30 of the pair of downward inclined pieces 13. In addition, the pair of flat plate portions 44 are connected to the outer tip edges 50 of the pair of folded pieces 15 via a pair of lower boundary portions 42, and a pair of lower boundary portions 42 are formed between the pair of flat plate portions 44 and the outer tip edges 50 of the pair of folded pieces 15.

[0039] The pair of upper boundary portions 141 and the pair of lower boundary portions 142 are formed to have an arc-shaped cross section when cut along a plane perpendicular to the left-right direction or a plane perpendicular to the front-rear direction. As a result, the surfaces of the pair of upper boundary portions 141 and the pair of lower boundary portions 142 are smoothly curved, making them less likely to be scratched when coming into contact with an object, etc., compared to when the pair of upper boundary portions 141 and the pair of lower boundary portions 142 are angular. The radii of curvature of the pair of upper boundary portions 141 and the pair of lower boundary portions 142 can be set to the same as the radii of curvature of the upper boundary portion 41 and the lower boundary portion 42 in embodiment 1.

[0040] A bent portion 143 is formed between the pair of front flap pieces 14. The bent portion 143 is the boundary between one front flap piece 14 and the other front flap piece 14, and the one front flap piece 14 and the other front flap piece 14 are connected via the bent portion 143. The bent portion 143 is formed to have an arc-shaped cross section when cut along a plane perpendicular to the up-down direction. This makes it less likely to be damaged by objects that come into contact with it, compared to when the bent portion 143 is formed with an angular edge.

[0041] When the corner drip rack 11 is attached to the base B, the bent portion 143 is positioned at a position corresponding to the apex D1 of the corner portion D. The apex D1 is the corner portion of the corner portion D that is located closest to the exterior. Therefore, the bent portion 143 is positioned on the exterior side of the apex D1.

[0042] The upper and lower ends of the bent portion 143 are each formed as a curved portion 145. The outer surface of the curved portion 145 is formed to be convex like part of the outer surface of a sphere. The upper curved portion 145 is formed between a pair of upper boundary portions 141. The lower curved portion 145 is formed between a pair of lower boundary portions 142.

[0043] The curved surface portion 145 is made up of a plurality of saw blade segments 145M. The plurality of saw blade segments 145M have a shape like a saw blade, and each saw blade segment 145M has a tapered shape that narrows toward the tip (see FIG. 11B). The curved surface portion 145 is formed by the plurality of saw blade segments 145M deforming so that the side surfaces of adjacent saw blade segments 145M come into contact with each other.

[0044] The pair of folded pieces 15 extend inward from the lower edges of the pair of front flap pieces 14. The lower edges of the pair of front flap pieces 14 are the ends of a pair of lower boundary portions 142, and the ends of the pair of lower boundary portions 42 are connected to the outer tip edges of the pair of folded pieces 15. One of the folded pieces 15 is formed to extend in the left-right direction when viewed from below. One of the folded pieces 15 is formed along the entire length of the lower edge of one of the front flap pieces 14 in the left-right direction. The other folded piece 15 is formed to extend in the front-to-back direction when viewed from below. The other folded piece 15 is formed along the entire length of the lower edge of the other front flap piece 14 in the front-to-back direction. The undersides of the pair of folded pieces 15 are flat.

[0045] When the corner dripping member 11 is attached to a building, the pair of folded pieces 15 extend inward from the lower end edges of the pair of front flap pieces 14. In other words, the pair of folded pieces 15 extend from the lower end edges of the pair of front flap pieces 4 toward the base B.

[0046] A pair of protruding pieces 16 are provided on the rear end edges of the pair of folded pieces 15. The pair of protruding pieces 16 protrude diagonally upward and outward (towards the pair of front flap pieces 14) from the rear end edges of the pair of folded pieces 15. The pair of protruding pieces 16 are formed over the entire length of the rear end edges of the pair of folded pieces 15.

[0047] The corner drainer 11 of this embodiment is installed on the outdoor surface of the base B, as shown in Figure 8. The corner drainer 11 is formed so that the upper surfaces of the pair of downwardly inclined pieces 13 are inclined downward and outward relative to the horizontal. Therefore, the corner drainer 11 smoothly drains rainwater that flows down from the projected corner member K and the exterior wall material W and hits the upper surfaces of the pair of downwardly inclined pieces 13, allowing it to drain along the outer surfaces of the pair of front hanging pieces 4.

[0048] <Method of manufacturing corner drainer> The corner drainer 11 of this embodiment is formed by a manufacturing method including a cutting process and a bending process. The cutting process is a process of cutting out a portion of a rectangular metal plate 100 to form a processed member 101. The bending process is a process of forming the processed member 101 into a three-dimensional shape so as to correspond to a corner portion D of a base B of a building.

[0049] FIG. 12 shows a metal plate 100. The metal plate 100 is flat and formed into a rectangular shape (rectangle) that is long in the left-right direction when viewed from the front (when viewed from a direction perpendicular to the surface of the metal plate 100). In the cutting process, a substantially central portion in the left-right direction of the metal plate 100 is cut away, and the remaining portion of the metal plate 100 forms a processed member 101. In FIG. 12, the portions N1 and N2 to be cut away are indicated by a dotted pattern. An imaginary center line C virtually indicates the center line of the metal plate 100 in the left-right direction. The portions N1 and N2 to be cut away are the peripheral portions of the imaginary center line C. In the cutting process, Thomson punching, laser processing, or the like can be used on the metal plate 100. In the cutting process, the order in which the portions N1 and N2 to be cut away is not important.

[0050] In the bending process, the processed member 101 obtained in the cutting process is formed into a three-dimensional shape. In the bending process, bending processing or the like can be performed. In the bending process, the processed member 101 is bent at a substantially right angle in a plan view so as to correspond to the corner portion D of the base B of the building, and is formed into the corner flashing member 11.

[0051] 11A shows a front view of the processed member 101. The processed member 101 is composed of a portion of the metal plate 100 that was not removed during the cutting process, and includes a right piece 101R, a left piece 101L, and a bent portion 143M. When the processed member 101 is viewed from the front (front view), the right piece 101R is located on the right side of the imaginary center line C. When the processed member 101 is viewed from the front, the left piece 101L is located on the left side of the imaginary center line C. The bent portion 143M is located between the right piece 101R and the left piece 101L. The imaginary center line C is an imaginary center line of the processed member 101 in the left-right direction, and is the same as the imaginary center line C of the metal plate 100.

[0052] The right piece 101R has a right fixed piece 12R, a right downward inclined piece 13R, a right front hanging piece 14R, and a right folded piece 15R. The right fixed piece 12R is formed in a generally rectangular shape when viewed from the front. The right downward inclined piece 13R is formed in a generally trapezoidal shape when viewed from the front. The right front hanging piece 14R is formed in a generally rectangular shape when viewed from the front. The right folded piece 15R is formed in a generally inverted trapezoidal shape when viewed from the front.

[0053] The right fixed piece 12R, right downward inclined piece 13R, right front flap piece 14R, and right folded piece 15R are arranged in order from top to bottom in a front view. Therefore, the right downward inclined piece 13R is formed below the right fixed piece 12R, with a right boundary portion 17R in between. The right front flap piece 14R is formed below the right downward inclined piece 13R, with an upper right boundary portion 141R in between. The right folded piece 15R is formed below the right front flap piece 14R, with a lower right boundary portion 142R in between. The right protruding piece 16R is formed below the right folded piece 15R, with a right lowest boundary portion 18R in between.

[0054] The left piece 101L has a left fixed piece 12L, a left downward inclined piece 13L, a left front hanging piece 14L, and a left folded piece 15L. The left fixed piece 12L is formed in a generally rectangular shape when viewed from the front. The left downward inclined piece 13L is formed in a generally trapezoidal shape when viewed from the front. The left front hanging piece 14L is formed in a generally rectangular shape when viewed from the front. The left folded piece 15L is formed in a generally inverted trapezoidal shape when viewed from the front.

[0055] The left fixed piece 12L, left downward inclined piece 13L, left front flap piece 14L, and left folded piece 15L are arranged in this order from top to bottom in a front view. Therefore, the left downward inclined piece 13L is formed below the left fixed piece 12L, with a left boundary portion 17L in between. The left front flap piece 14L is formed below the left downward inclined piece 13L, with an upper left boundary portion 141L in between. The left folded piece 15L is formed below the left front flap piece 14L, with a lower left boundary portion 142L in between. The left folded piece 15L is formed below the lowermost left boundary portion 18L in between.

[0056] The right piece 101R has a fixing piece overlapping portion 121. The fixing piece overlapping portion 121 extends toward the imaginary center line C of the right fixing piece 12R. The fixing piece overlapping portion 121 is formed in a substantially trapezoidal shape in a front view, and is provided along the end of the right fixing piece 12R on the imaginary center line C side. The fixing piece overlapping portion 121 is connected to the right fixing piece 12R via a bent portion 19 that extends in the vertical direction.

[0057] The fixing piece overlapping portion 121 may be extended to the left piece 101L. In this case, the fixing piece overlapping portion 121 extends along the end portion of the left fixing piece 12L on the imaginary center line C side.

[0058] The left piece 101L has a downward inclined piece overlapping portion 131. The downward inclined piece overlapping portion 131 extends toward the imaginary center line C of the left downward inclined piece 13L. The downward inclined piece overlapping portion 131 is formed in a substantially triangular shape in a front view, and is provided along the end portion of the left downward inclined piece 13L on the imaginary center line C side. The downward inclined piece overlapping portion 131 is connected to the left downward inclined piece 13L via a bent portion 22 extending obliquely.

[0059] The downward inclined piece overlapping portion 131 may be extended toward the imaginary center line C of the right-downward inclined piece portion 13R. In this case, the downward inclined piece overlapping portion 131 is extended along the end portion of the right-downward inclined piece portion 13R on the imaginary center line C side.

[0060] The left piece 101L has a folded piece overlapping portion 151. The folded piece overlapping portion 151 extends toward the imaginary center line C of the left folded piece 15L. The folded piece overlapping portion 151 is formed in a substantially rectangular shape in a front view, and is provided along the end of the left folded piece 15L on the imaginary center line C side. The folded piece overlapping portion 151 is connected to the folded piece overlapping portion 151 via a bent portion 21 that extends obliquely.

[0061] The folded piece overlapping portion 151 may be extended toward the imaginary center line C of the right folded piece 15R. In this case, the folded piece overlapping portion 151 extends along the end portion of the right folded piece 15R on the imaginary center line C side.

[0062] The bent portion 143M is formed in a substantially rectangular shape when viewed from the front. The bent portion 143M is located between the right piece 101R and the left piece 101L. The right piece 101R is located to the right of the bent portion 143M, and the left piece 101L is located to the left of the bent portion 143M. The bent portion 143M is located on an imaginary center line C. The imaginary center line C passes through the center of the bent portion 143M in the left-right direction. The right end of the bent portion 143M is connected to the left end of the right front flap portion 14R. The left end of the bent portion 143M is connected to the right end of the left front flap portion 14L.

[0063] As shown in FIG. 11B, the bent portion 143M has a plurality of saw blade segments 145M formed in a sawtooth shape at its upper and lower ends. The plurality of saw blade segments 145M have a saw blade-like shape, and each saw blade segment 145M has a tapered shape that narrows toward the tip. The upper saw blade segment 145M has a tapered shape that narrows toward the upper end. The lower saw blade segment 145M has a tapered shape that narrows toward the lower end. The upper saw blade segments 145M are located between the upper right boundary 141R and the upper left boundary 141L. The lower saw blade segments 145M are located between the lower right boundary 142R and the lower left boundary 142L.

[0064] The folding process includes a fixing piece folding process, a front flap upper folding process, a front flap lower folding process, and a bent portion folding process. The fixing piece folding process, the front flap upper folding process, the front flap lower folding process, and the bent portion folding process may be performed in any order.

[0065] In the fixing piece bending step, a right boundary portion 17R, which is the boundary portion between the right fixing piece 12R and the right downward inclined piece 13R, and a left boundary portion 17L, which is the boundary portion between the left fixing piece 12L and the left downward inclined piece 13L, are valley-folded. The valley folds are made by folding from the front to the back in a direction perpendicular to the plane of the paper in FIG. 11A.

[0066] In the folding process of the upper part of the front flap piece, the upper right boundary portion 141R, which is the boundary portion between the right downward sloping piece 13R and the right front flap piece 14R, and the upper left boundary portion 141L, which is the boundary portion between the left downward sloping piece 13L and the left front flap piece 14L, are folded in a mountain fold to form an arc-shaped cross section. Note that the mountain folds are made by folding from the back to the front in a direction perpendicular to the plane of the paper in FIG. 11A.

[0067] In the lower front flap folding process, the lower right boundary 142R between the right front flap 14R and the right folded piece 15R, and the lower left boundary 142L between the left front flap 14L and the left folded piece 15L are folded in a mountain-like arc shape in cross section.

[0068] In the bending process, the bent portion 143M, which is the boundary between the right front flap piece 14R and the left front flap piece 14L, is bent in a mountain-like arc shape in cross section.

[0069] Furthermore, the bent portion 19 is bent in a mountain fold, and the fixing piece overlapping portion 121 extending from the right fixing piece 12R is brought into contact with the outer surface of the left fixing piece 12L. Note that when the fixing piece overlapping portion 121 is extended from the left fixing piece 12L, the fixing piece overlapping portion 121 is brought into contact with the outer surface of the right fixing piece 12R.

[0070] Also, the folded portion 22 is slightly bent upward so that the downward inclined piece overlapping portion 131 extending from the left downward inclined piece 13L abuts against the inner surface (lower surface) of the right downward inclined piece 13R. Note that when the downward inclined piece overlapping portion 131 extends from the right downward inclined piece 13R, the downward inclined piece overlapping portion 131 abuts against the inner surface of the left downward inclined piece 13L.

[0071] Also, the folded portion 21 is slightly bent upward so that the folded piece overlapping portion 151 extending from the left folded piece 15L abuts against the inner surface (upper surface) of the right folded piece 15R. When the folded piece overlapping portion 151 extends to the right folded piece 15R, the folded piece overlapping portion 151 abuts against the inner surface of the left folded piece 15L.

[0072] Furthermore, the opposing side surfaces of the saw blade pieces 145M are brought into contact with each other, and the tips of the saw blade pieces 145M are formed into an arc-shaped cross section facing the depth of the paper. Also, the right-most lower boundary portion 18R and the left-most lower boundary portion 18L are mountain-folded.

[0073] By performing the bending process as described above, a pair of fixing pieces 12 is formed from the right fixing piece portion 12R and the left fixing piece portion 12L. In addition, the end portion of the left fixing piece portion 12L on the imaginary center line C side is positioned so as to substantially overlap the bent portion 19.

[0074] The pair of downward inclined pieces 13 is formed by a right downward inclined piece portion 13R and a left downward inclined piece portion 13L. The end portion of the right downward inclined piece portion 13R on the imaginary center line C side is positioned so as to substantially overlap the bent portion 22.

[0075] The pair of front flap pieces 14 is formed by a right front flap piece portion 14R and a left front flap piece portion 14L. An upper right boundary portion 141R and an upper left boundary portion 141L form a pair of upper boundary portions 141 having an arc-shaped cross section. A lower right boundary portion 142R and a lower left boundary portion 142L form a pair of lower boundary portions 142 having an arc-shaped cross section.

[0076] The pair of folded pieces 15 is formed by a right folded piece portion 15R and a left folded piece portion 15L. The end portion of the right folded piece portion 15R on the side of the imaginary center line C is positioned so as to substantially overlap the folded portion 21. The pair of protruding pieces 16 is formed by a right protruding piece portion 16R and a left protruding piece portion 16L. The bent portion 143 is formed by a bent portion 143M. The curved surface portion 145 is formed by a plurality of saw blade pieces 145M.

[0077] Furthermore, the above manufacturing method makes it easy to manufacture the corner drainer 11 that is resistant to damage even when objects come into contact with the boundary portions 141, 142 and the bent portion 143 that have an arcuate cross section.

[0078] (summary) As described above, the first aspect is a drip-proof member 1 to be installed in a building. The drip-proof member 1 comprises a fixed piece 2, a downwardly inclined piece 3, a front hanging piece 4, and a folded piece 5. The fixed piece 2 is fixed to the base B of the building. The downwardly inclined piece 3 extends outward from the lower edge 20 of the fixed piece 2 to the base B. The front hanging piece 4 extends downward from the outer tip edge 30 of the downwardly inclined piece 3. The folded piece 5 extends inward from the lower edge of the front hanging piece 4. The boundary portion 41 between the front hanging piece 4 and the downwardly inclined piece 3 is formed to have an arc-shaped cross section.

[0079] According to this embodiment, the boundary portion 41 between the front flap piece 4 and the downward inclined piece 3 has an arc-shaped cross section, which has the advantage that the boundary portion 41 is less likely to be damaged when an object or the like comes into contact with it, compared to when it is angular.

[0080] The second aspect is the drainer 1 according to the first aspect, in which the boundary portion 42 between the front hanging piece 4 and the folded piece 5 is formed to have an arc-shaped cross section.

[0081] According to this embodiment, the boundary portion 42 between the front flap piece 4 and the folded piece 5 has an arc-shaped cross section, which has the advantage that the boundary portion 42 is less likely to be damaged when an object or the like comes into contact with it, compared to when it is angular.

[0082] The third aspect is a corner dripping member 11 that is installed in the corner of a building. The corner dripping member 11 includes a pair of fixed pieces 12, a pair of downwardly inclined pieces 13, a pair of front hanging pieces 14, and a pair of folded pieces 15. The pair of fixed pieces 12 are fixed to a corner D of the base B of the building. The pair of downwardly inclined pieces 13 extend outward from the respective lower end edges of the pair of fixed pieces 12 to the side of the base B. The pair of front hanging pieces 14 extend downward from the respective outer tip edges of the pair of downwardly inclined pieces 13. The pair of folded pieces 15 extend inward from the respective lower end edges of the pair of front hanging pieces 14. A boundary portion 141 between the pair of front hanging pieces 14 and the pair of downwardly inclined pieces 13 is formed to have an arc-shaped cross section.

[0083] According to this embodiment, the boundary portion 141 between the pair of front flap pieces 14 and the pair of downward inclined pieces 13 has an arc-shaped cross section, which has the advantage that the boundary portion 141 is less likely to be damaged when an object or the like comes into contact with it, compared to when it is angular.

[0084] The fourth embodiment is the corner drainer 11 according to the third embodiment, in which the boundary portions 142 between the pair of front hanging pieces 14 and the pair of folded pieces 15 are formed in an arc-shaped cross section.

[0085] According to this embodiment, the boundary portion 142 between the pair of front flap pieces 14 and the pair of fold-back pieces 15 has an arc-shaped cross section, which has the advantage that the boundary portion 142 is less likely to be damaged when an object or the like comes into contact with it, compared to when it is angular.

[0086] The fifth aspect is a corner drainer 11 according to the third or fourth aspect, in which the boundary between a pair of front flap pieces 14 is formed in an arc-shaped cross section at a position corresponding to the top D1 of the corner portion D.

[0087] According to this embodiment, the boundary portion of the pair of front flap pieces 14 at the position corresponding to the apex D1 of the corner portion D has an arc-shaped cross section, which has the advantage that the boundary portion is less likely to be damaged if an object or the like comes into contact with it, compared to when it is angular.

[0088] The sixth aspect is a manufacturing method of a corner drip-proof member 11 to be installed at a corner portion D of a building. This manufacturing method includes a cutting process and a bending process. In the cutting process, a portion of a rectangular metal plate 100 is removed to form a processed member 101. In the bending process, the processed member 101 is shaped into a three-dimensional shape to correspond to the corner portion D of the base B of the building. The processed member 101 includes a right piece 101R located to the right of an imaginary center line C in the left-right direction when viewed from the front, a left piece 101L located to the left of the imaginary center line C, and a bent portion 143M located between the right piece 101R and the left piece 101L. The right piece 101R has, in order from top to bottom, a right fixed piece 12R, a right downwardly inclined piece 13R, a right front hanging piece 14R, and a right folded piece 15R. The left piece 101L has, in order from top to bottom, a left fixed piece 12L, a left downward inclined piece 13L, a left front flap piece 14L, and a left folded piece 15L. The right piece 101R or the left piece 101L has a fixed piece overlapping portion 121. The fixed piece overlapping portion 121 extends toward the imaginary center line C of the right fixed piece 12R, or extends toward the imaginary center line C of the left fixed piece 12L. The right piece 101R or the left piece 101L has a downward inclined piece overlapping portion 131. The downward inclined piece overlapping portion 131 extends toward the imaginary center line C of the right downward inclined piece 13R, or extends toward the imaginary center line C of the left downward inclined piece 13L. The right piece 101R or the left piece 101L has a folded piece overlapping portion 151. The folded piece overlapping portion 151 extends toward the imaginary center line C of the right folded piece 15R or toward the imaginary center line C of the left folded piece 15L. The bending portion 143M has a plurality of saw blade pieces 145M formed in a sawtooth shape at the upper and lower ends. The cutting process includes a process of cutting out approximately the center of the metal plate 100 in the left-right direction so as to leave the right piece 101R, the left piece 101L, and the bending portion 143M. The bending process includes a fixing piece bending process, a front flap upper bending process, a front flap lower bending process, and a bent portion bending process. The fixing piece bending process involves valley folding the boundary between the right fixing piece 12R and the right downward inclined piece 13R and the boundary between the left fixing piece 12L and the left downward inclined piece 13L. In the folding process of the upper part of the front flap, the boundary between the right downward inclined piece 13R and the right front flap piece 14R and the boundary between the left downward inclined piece 13L and the left front flap piece 14L are folded in a mountain fold to form an arcuate cross section.In the front flap lower folding process, the boundary between the right front flap piece 14R and the right folded piece 15R, and the boundary between the left front flap piece 14L and the left folded piece 15L are folded in a mountain fold to form an arc-shaped cross section. In the bent portion folding process, the bent portion 143M, which is the boundary between the right front flap piece 14R and the left front flap piece 14L, is folded in a mountain fold to form an arc-shaped cross section. The fixed piece overlapping portion 121 extending from either the right fixed piece 12R or the left fixed piece 12L is abutted against the other. The downward sloping piece overlapping portion 131 extending from either the right downward sloping piece 13R or the left downward sloping piece 13L is abutted against the other. The folded piece overlapping portion 151 extending from either the right folded piece 15R or the left folded piece 15L is abutted against the other. The saw blade segments 145M are formed by bringing the opposing side surfaces in the left-right direction into contact with each other.

[0089] This embodiment has the advantage that it is easy to manufacture the corner drainer 11 that is resistant to damage even when objects come into contact with the boundary portions 141, 142 and the bent portion 143 that have an arcuate cross section. [Explanation of symbols]

[0090] 1. Draining material 2 Fixed piece 3 Downward Slope 4 Front hanging piece 5 Folding piece 11 Corner drainer 12 Fixed piece 12L Left fixed piece 12R Right fixed piece 13 Downward Slope 13L Left downward slope 13R Right downward slope 14 Front hanging piece 14L Left front flap 14R Right front flap part 15 Folding piece 15L Left folded piece 15R Right folded piece 20 bottom edge 30 outer tip edge 41 Boundary part 42 Boundary part 100 metal plate 101 processed material 101L left side 101R Right side 121 Fixed piece overlapping part 131 Downward inclined overlapping section 141 Boundary part 142 Boundary part 143 Bend 151 Folded overlapping part 143M Bending section 145M saw blade piece B. Base C Virtual center line D corner part D1 Top

Claims

1. A drainage member provided in a building, a fixing piece fixed to the base of the building; a downwardly inclined piece extending outward from the lower end edge of the fixing piece; a front flap extending downward from the outer tip edge of the downward inclined piece; a folded piece extending inward from the lower end edge of the front flap piece, The boundary between the front flap piece and the downward inclined piece is formed in an arc-shaped cross section. Water draining parts.

2. The boundary between the front flap piece and the folded piece is formed in an arc-shaped cross section. The drainer member according to claim 1 .

3. A corner drainage member provided at a corner of a building, A pair of fixing pieces fixed to corner portions of the base of the building; a pair of downwardly inclined pieces extending outward from the base from the lower end edges of the pair of fixing pieces; a pair of front flap pieces extending downward from the outer tip edges of the pair of downward inclined pieces; a pair of folded pieces extending inward from the lower end edges of the pair of front flap pieces, The boundary portions of the pair of front flap pieces and the pair of downward inclined pieces are formed in an arc-shaped cross section. Corner drainer.

4. The boundary portions of the pair of front flap pieces and the pair of folded pieces are formed in an arc-shaped cross section. The corner drainer according to claim 3.

5. At a position corresponding to the apex of the corner portion, the boundary portion of the pair of front flap pieces is formed in an arc-shaped cross section. The corner drainer according to claim 3 or 4.

6. A method for manufacturing a corner drainage member to be installed at a corner of a building, a cutting step of cutting out a portion of the rectangular metal plate to form a processed member; a bending process of forming the processed member into a three-dimensional shape so as to correspond to a corner portion of the foundation of the building, the processed member includes a right piece portion located on the right side of an imaginary center line in the left-right direction in a front view, a left piece portion located on the left side of the imaginary center line, and a bent processed portion located between the right piece portion and the left piece portion, The right piece portion has, arranged in order from above, a right fixed piece portion, a right downward inclined piece portion, a right front hanging piece portion, and a right folded piece portion, The left piece has, arranged in this order from above, a left fixed piece, a left downward inclined piece, a left front hanging piece, and a left folded piece, the right piece or the left piece has a fixing piece overlapping portion, and the fixing piece overlapping portion is provided to extend toward the imaginary center line of the right fixing piece or the imaginary center line of the left fixing piece, the right piece or the left piece has a downward inclined piece overlapping portion, and the downward inclined piece overlapping portion is extended toward the imaginary center line of the right downward inclined piece or is extended toward the imaginary center line of the left downward inclined piece, the right piece or the left piece has a folded piece overlapping portion, and the folded piece overlapping portion is extended toward the imaginary center line of the right folded piece or the imaginary center line of the left folded piece, The bending processing portion has a plurality of saw blades formed in a sawtooth shape at an upper end and a lower end, the cutting step includes a step of cutting out a substantially central portion of the metal plate in the left-right direction so as to leave the right piece portion, the left piece portion, and the bent portion; The bending step includes: a fixing piece bending step of valley-folding a boundary portion between the right fixing piece and the right downward inclined piece and a boundary portion between the left fixing piece and the left downward inclined piece; a folding step of folding the upper part of the front flap piece by folding a boundary portion between the right downward inclined piece and the right front flap piece, and a boundary portion between the left downward inclined piece and the left front flap piece, so as to have an arc-shaped cross section; a folding step of folding the lower part of the front flap piece by folding a boundary portion between the right front flap piece and the right folded piece and a boundary portion between the left front flap piece and the left folded piece into a mountain-like arc in cross section; a bending process of folding the bent portion, which is a boundary portion between the right front flap portion and the left front flap portion, into a mountain fold having an arc-shaped cross section; Including, the fixing piece overlapping portion extending from one of the right fixing piece portion and the left fixing piece portion is brought into contact with the other of the right fixing piece portion and the left fixing piece portion; The downward inclined piece overlapping portion, which is extended from one of the right downward inclined piece portion and the left downward inclined piece portion, is brought into contact with the other of the right downward inclined piece portion and the left downward inclined piece portion, The folded piece overlapping portion extending from one of the right folded piece and the left folded piece is brought into contact with the other of the right folded piece and the left folded piece, The saw blades are formed by bringing the opposing side surfaces of the saw blades into contact with each other in the left-right direction. A method for manufacturing corner drainage components.

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