Eaves gutter

Abstract

To provide an eaves gutter which facilitates adjustment of the strength and the heat resistance of each part.SOLUTION: An eaves gutter 20 comprises: a gutter member 21 having a bottom plate 22, a first side plate 23 extending from a first end 22b of the bottom plate 22 in a width direction Z toward a first side Y1 of the bottom plate 22 in a thickness direction Y, and a second side plate 24 extending from the second end 22c of the bottom plate 22 in the width direction Z toward the first side Y1 in the thickness direction Y; and a plurality of reinforcement sheets 36 buried in the gutter member 21 along at least one of the bottom plate 22, the first side plate 23, and the second side plate 24.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an eaves gutter. [Background technology]

[0002] Generally, eaves gutters are installed at the eaves of buildings, which are easily affected by weather, etc. Eaves gutters are easily deteriorated and deformed because they are exposed to temperature changes, wind, rain, etc. Eaves gutters are easily deformed, such as meandering and curving. For this reason, high-strength eaves gutters that are less likely to deform, such as meandering and curving, have been proposed.

[0003] For example, the eaves gutter disclosed in Patent Document 1 is formed from a stretched thermoplastic resin sheet, such as a thermoplastic polyester resin, that is uniaxially stretched in the length direction. Stretched thermoplastic resin sheets generally have a low linear expansion coefficient and are excellent in strength, heat resistance, etc., and therefore can be suitably used for eaves gutters. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-213301 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the strength, heat resistance, etc. required for each part of the eaves gutter may differ. In such cases, the eaves gutter of Patent Document 1 has difficulty in meeting the requirements.

[0006] The present invention has been made in consideration of such problems, and has an object to provide an eaves gutter in which the strength and heat resistance of each part can be easily adjusted. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention proposes the following means. The eaves gutter of the present invention comprises a gutter member having a bottom plate, a first side plate extending from a first end in the width direction of the bottom plate toward a first side in the thickness direction of the bottom plate, and a second side plate extending from a second end in the width direction of the bottom plate toward the first side in the thickness direction, and a plurality of reinforcing sheets embedded in the gutter member along at least one of the bottom plate, the first side plate, and the second side plate, wherein the plurality of reinforcing sheets include a first reinforcing sheet and a second reinforcing sheet, the first reinforcing sheet is embedded at least along the first side plate and the second reinforcing sheet is embedded at least along the second side plate, the first reinforcing sheet and the second reinforcing sheet face each other within the gutter member via a part of the gutter member, and the width of the bottom plate is 120 mm or more.

[0008] According to this invention, for example, when the first side plate is more likely to be exposed to sunlight than the second side plate, the reinforcing sheet embedded in the first side plate and the reinforcing sheet embedded in the second side plate can be different reinforcing sheets. By making the reinforcing sheet embedded in the first side plate thicker than the reinforcing sheet embedded in the second side plate, the strength and heat resistance of the first side plate, which is easily deteriorated by sunlight, can be improved more than the strength and heat resistance of the second side plate. The strength and heat resistance of the first side panel referred to here means the strength and heat resistance of the first side panel including the reinforcing sheet embedded in the first side panel. The same applies to the strength and heat resistance of the second side panel. Therefore, by making the shapes and physical properties of the multiple reinforcing sheets different from one another, it is possible to easily adjust the strength and heat resistance of each part of the eaves gutter.

[0009] In addition, in the eaves gutter, the first reinforcing sheet may be embedded along the first side panel and the bottom panel, respectively, at the first end side in the width direction, and the second reinforcing sheet may be embedded along the second side panel and the bottom panel, respectively, at the second end side in the width direction. According to this invention, the reinforcing sheet embedded in the portion on the first end side of the first side plate and bottom plate in the width direction and the reinforcing sheet embedded in the portion on the second end side of the second side plate and bottom plate in the width direction can be made into different reinforcing sheets having different thicknesses, etc.

[0010] In the eaves gutter, the first reinforcing sheet and the second reinforcing sheet may be disposed within the bottom plate and face each other via a part of the bottom plate. According to this invention, since no reinforcing sheet is disposed in the portion of the bottom plate between the first reinforcing sheet and the second reinforcing sheet, the portion has a lower strength than other portions of the bottom plate. Therefore, through holes or the like for draining rainwater from the eaves gutter can be easily formed in the portion of the bottom plate between the opposing first reinforcing sheet and the second reinforcing sheet by processing after the eaves gutter is manufactured.

[0011] In addition, in the eaves gutter, the first reinforcing sheet may be embedded along the first side panel and the bottom panel, respectively, and the second reinforcing sheet may be embedded along the second side panel, and the first reinforcing sheet and the second reinforcing sheet may face each other within the gutter member via a part of the gutter member. As a result, for example, when an eaves gutter is formed by extrusion molding or the like and a sink mark occurs at the connection portion, the sink mark can be made less noticeable when looking at the exterior of the eaves gutter.

[0012] In the eaves gutter, the reinforcing sheets have a linear expansion coefficient of −1.5×10 -5 (1 / ℃) or more 2.0×10 -5 (1 / ° C.) or less, it may be formed of a stretched thermoplastic resin sheet or metal. According to this invention, the multiple reinforcing sheets can be made of a material having excellent strength and heat resistance. Effect of the Invention

[0013] According to the eaves gutter of the present invention, it is possible to easily adjust the strength and heat resistance of each part. [Brief description of the drawings]

[0014] [Figure 1] 1 is a partially cutaway front view of a gutter system including an eaves gutter according to a first embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a cross-sectional view illustrating the multi-layer structure of the eaves gutter. [Diagram 3] 1 is a cross-sectional view of a main part of an eaves gutter according to a first modified example of the first embodiment of the present invention. FIG. [Figure 4] 13 is a cross-sectional view of a main part of an eaves gutter according to a second modified example of the first embodiment of the present invention. FIG. [Diagram 5] 13 is a cross-sectional view of a main part of an eaves gutter according to a third modified example of the first embodiment of the present invention. FIG. [Figure 6] 13 is a cross-sectional view of a main part of an eaves gutter according to a fourth modified example of the first embodiment of the present invention. FIG. [Figure 7] FIG. 11 is a cross-sectional view of an eaves gutter according to a fifth modified example of the first embodiment of the present invention. [Figure 8] FIG. 11 is a cross-sectional view of an eaves gutter according to a sixth modified example of the first embodiment of the present invention. [Figure 9] FIG. 4 is a cross-sectional view of an eaves gutter according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] (First embodiment) Hereinafter, a rain gutter system in which a first embodiment of the eaves gutter according to the present invention is used will be described with reference to Figs. 1 to 8. As shown in Fig. 1, for example, this gutter system 1 is a large-scale gutter system used in a building 200 such as a logistics warehouse. The configuration of the gutter system 1 is not particularly limited. In this example, the gutter system 1 includes the eaves gutter 20 of this embodiment, a connection portion 45, and a downspout 50. For example, the eaves gutter 20 is formed in a U-shape that opens upward. The eaves gutter 20 extends in the longitudinal direction X. The eaves gutter 20 includes a gutter member 21 and a plurality of reinforcing sheets 36. The gutter member 21 includes a bottom plate 22, a first side plate 23, and a second side plate 24. The bottom plate 22, the first side plate 23, and the second side plate 24 are each formed in a flat plate shape and extend in the longitudinal direction X.

[0016] The bottom plate 22 is disposed so that a thickness direction Y of the bottom plate 22 is aligned along the vertical direction. The thickness direction Y is a direction perpendicular to an upper outer surface (main surface) 22a of the bottom plate 22. Here, the directions perpendicular to the longitudinal direction X and the thickness direction Y are referred to as a width direction Z of the bottom plate 22. The first side plate 23 extends from a first end 22b in the width direction Z of the bottom plate 22 toward a first side Y1 in the thickness direction Y. The second side plate 24 extends from a second end 22c opposite the first end 22b in the width direction Z of the bottom plate 22 toward the first side Y1 in the thickness direction Y. The first side plate 23 and the second side plate 24 are arranged so as to be gradually spaced apart from each other toward the first side Y1 in the thickness direction Y. In this example, the length of the first side plate 23 in the thickness direction Y is longer than the length of the second side plate 24 in the thickness direction Y. The eaves gutter 20 is disposed so that a first side Y1 in the thickness direction Y faces upward. The length in the thickness direction Y of the first side plate 23 and the length in the thickness direction Y of the second side plate 24 may be equal to each other.

[0017] The bottom plate 22, the first side plate 23, and the second side plate 24 are configured of a multilayer structure 27 made of a plurality of resin layers including a reinforcing sheet 36. The multilayer structure 27 will be described in detail later.

[0018] In this embodiment, the multiple reinforcing sheets 36 include a first reinforcing sheet 37 and a second reinforcing sheet 38. The first reinforcing sheet 37 is embedded in the first side plate 23 and in a portion of the bottom plate 22 on the first end 22b side in the width direction Z, along the first side plate 23 and the portion of the bottom plate 22 on the first end 22b side in the width direction Z. The second reinforcing sheet 38 is embedded in the second side plate 24 and in a portion of the bottom plate 22 on the second end 22c side in the width direction Z, along the second side plate 24 and the portion of the bottom plate 22 on the second end 22c side in the width direction Z. An end of the first reinforcing sheet 37 and an end of the second reinforcing sheet 38 face each other in the width direction Z within the bottom plate 22, with a part 22d of the bottom plate 22 interposed therebetween. The portion in the bottom plate 22 where the first reinforcing sheet 37 and the second reinforcing sheet 38 face each other is a joint 40A where the first reinforcing sheet 37 and the second reinforcing sheet 38 are joined. In this example, the joint 40A is formed in the middle of the bottom plate 22 in the width direction Z.

[0019] Here, the multilayer structure 27 will be described with reference to FIG. 2, in the multilayer structure 27, a base material layer 29 is laminated on each outer surface of a reinforcing sheet 36 constituting a core material, via an adhesive layer 28. Of the pair of base material layers 29, a surface layer 30 is laminated on the outer surface of one of the base material layers 29. The reinforcing sheet 36, the base material layer 29, and the surface layer 30 are each formed of a stretched thermoplastic resin sheet. That is, the gutter member 21 and the multiple reinforcing sheets 36 are each formed from a stretched thermoplastic resin sheet. The pair of adhesive layers 28, the pair of base layers 29, and the surface layer 30 in the multilayer structure 27, other than the reinforcing sheet 36, are referred to as a covering layer 27A. The covering layer 27A covers both outer surfaces of the reinforcing sheet 36. The gutter member 21 is formed by the covering layer 27A. The strength and heat resistance of the reinforcing sheet 36 are higher than the strength and heat resistance of the covering layer 27A (gutter member 21). The reinforcing sheet 36 may be made of a metal. The metal that forms the reinforcing sheet 36 may be iron.

[0020] Each of the base layers 29 is, for example, a vinyl chloride layer made of a vinyl chloride resin molded body. For example, the linear expansion coefficient of the base layer 29 is 7.0×10 -5 (1 / ℃). The reinforcing sheet 36 is a core material, and has a smaller linear expansion coefficient than the base layer 29 and is strong. For the reinforcing sheet 36, for example, olefin resins such as polyethylene resins and polypropylene resins, and thermoplastic polyester resins having excellent heat durability can be used. -5Thermoplastic polyester resins, which have a small thermal expansion coefficient of 3.0×10 (1 / °C), are lightweight, and have excellent impact resistance and durability, are preferred for the reinforcing sheet 36. In this embodiment, thermoplastic polyethylene terephthalate obtained by uniaxially stretching polyethylene terephthalate is used for the reinforcing sheet 36. The linear expansion coefficient of the reinforcing sheet 36 is 3.0×10 -5 (1 / ℃) or less, it has high strength, low elasticity and excellent heat resistance. As a uniaxially oriented thermoplastic polyethylene terephthalate, it has a linear expansion coefficient of 2.5×10 -5 (1 / °C) or less is more preferable. For uniaxially oriented thermoplastic polyethylene terephthalate, the linear expansion coefficient is 1.2×10 -5 (1 / ℃) or less is more preferable, and -0.1×10 -5 (1 / °C) or less is most preferred. The linear expansion coefficient of the reinforcing sheet 36 is −1.5×10 -5 (1 / ℃) or more 2.0×10 -5 It is preferable that the temperature is 1 / °C or less.

[0021] The thickness of the reinforcing sheet 36 is set in the range of 0.3 mm to less than 1.5 mm. The thickness of the reinforcing sheet 36 is preferably in the range of 0.35 mm to less than 1.0 mm, and is set to 0.7 mm in this embodiment. By setting the thickness of the reinforcing sheet 36 in the range of 0.3 mm or more and less than 1.5 mm, the multilayer structure 27 including the reinforcing sheet 36 becomes easy to bend and can fully exhibit the properties of high strength, low elasticity, and heat resistance.

[0022] A highly weather-resistant special resin such as AES (acrylonitrile-ethylene-propylene-diene-styrene) resin can be used as the surface layer 30. The surface layer 30 is laminated and covered on the outer surface of the outer side of the gutter member 21 of the eaves gutter 20. Any suitable material can be used for the adhesive layer 28. For example, a hot melt adhesive or a reactive adhesive is used for the adhesive layer 28. Examples of hot melt adhesives include urethane-based hot melt adhesives, polyester-based hot melt adhesives, rubber-based hot melt adhesives, olefin-based hot melt adhesives, acrylic-based hot melt adhesives, and amide-based hot melt adhesives. Examples of reactive adhesives include silicone-based adhesives, modified silicone-based adhesives, and urethane-based adhesives. For example, the thickness of the reinforcing sheet 36 is 0.7 mm, and the thickness of the entire multilayer structure 27 is 1.9 mm. This multilayer structure 27 (eaves gutter 20) is formed by extrusion molding or the like.

[0023] The first reinforcing sheet 37 may be thicker or thinner than the second reinforcing sheet 38. The covering layer 27A covering the first reinforcing sheet 37 may be thicker or thinner than the covering layer 27A covering the second reinforcing sheet 38. The first reinforcing sheet 37 may be the same thickness, shape, and material as the second reinforcing sheet 38.

[0024] 1, a through hole 22e is formed in the center of the bottom plate 22 in the width direction Z. For example, the through hole 22e has a circular shape when viewed in the thickness direction Y. The through hole 22e is preferably formed so as to include a portion between the first reinforcing sheet 37 and the second reinforcing sheet 38 in the bottom plate 22 of the eaves gutter 20. The length L1 of the outer surface 22a of the bottom plate 22 in the width direction Z is preferably 120 mm or more. The length L1 of the outer surface 22a is more preferably 200 mm or more. The length L1 of the outer surface 22a is 500 mm or less. When the length L1 of the outer surface 22a is 120 mm or more, the eaves gutter 20 can be preferably used as a large eaves gutter for use in a logistics warehouse or the like. The eaves gutter 20 may be disposed so as to be inclined with respect to the horizontal plane so as to have a water gradient. The arrangement of the eaves gutter 20 is not limited to this orientation.

[0025] The eaves gutter 20 is disposed under the eaves of the building 200. That is, the eaves gutter 20 is disposed below the edge 201a of the roof 201 of the building 200. In this case, the second side panel 24 is disposed closer to the building 200 than the first side panel 23. The eaves gutter 20 is fixed to the building 200 by a hanging device or the like (not shown). Sunlight is more likely to strike the first side panel 23 than the second side panel 24 .

[0026] The connection part 45 is formed in a cylindrical shape. The first end part of the connection part 45 has an inner diameter and an outer diameter each larger than those of other parts of the connection part 45. The first end part of the connection part 45 is connected to the opening peripheral part of the through hole 22e in the bottom plate 22 of the eaves gutter 20. The downspout 50 is disposed so that its axis is aligned in the vertical direction. An upper end of the downspout 50 is connected to a second end of the connection portion 45, which is opposite to the first end. A lower end of the downspout 50 is connected to the ground, although not shown. The lower end of the downspout 50 is connected to a known water collection basin buried in the ground. The water collection basin is connected to a drainage structure, such as a sewer pipe, via a connecting pipe.

[0027] As described above, according to the eaves gutter 20 of this embodiment, when the first side panel 23 is more likely to be exposed to sunlight than the second side panel 24, the first reinforcing sheet 37 embedded in the first side panel 23 and the second reinforcing sheet 38 embedded in the second side panel 24 can be made into different reinforcing sheets 36. By making the first reinforcing sheet 37 embedded in the first side panel 23 thicker than the second reinforcing sheet 38 embedded in the second side panel 24, the strength and heat resistance of the first side panel 23, which is easily deteriorated by sunlight, can be improved more than the strength and heat resistance of the second side panel 24. Therefore, by making the shapes and physical properties of the multiple reinforcing sheets 36 different from one another, the strength and heat resistance of each portion of the eaves gutter 20 can be easily adjusted.

[0028] The first reinforcing sheet 37 is embedded along the first side plate 23 and the bottom plate 22, respectively, along the portions on the first end 22b side in the width direction Z. The second reinforcing sheet 38 is embedded along the second side plate 24 and the bottom plate 22, respectively, along the portions on the second end 22c side in the width direction Z. Therefore, the reinforcing sheet 36 embedded in the portions on the first end 22b side in the width direction Z of the first side plate 23 and the bottom plate 22 and the portions on the second end 22c side in the width direction Z of the second side plate 24 and the bottom plate 22 can be different reinforcing sheets 36 having different thicknesses, etc. The first reinforcing sheet 37 and the second reinforcing sheet 38 face each other within the bottom plate 22 via a part 22d of the bottom plate 22. Since the reinforcing sheet 36 is not disposed in the part of the bottom plate 22 between the first reinforcing sheet 37 and the second reinforcing sheet 38, the part has lower strength than other parts of the bottom plate 22. Therefore, through holes 22e and the like for draining rainwater from the eaves gutter 20 can be easily formed in the part of the bottom plate 22 between the first reinforcing sheet 37 and the second reinforcing sheet 38 by processing after the manufacture of the eaves gutter 20.

[0029] The reinforcing sheets 36 are formed of a stretched thermoplastic resin sheet, which allows the reinforcing sheets 36 to be made of a material with excellent strength and heat resistance.

[0030] The configuration of the eaves gutter 20 of this embodiment can be modified in various ways, as described below. 3, an end portion of the first reinforcing sheet 37 and an end portion of the second reinforcing sheet 38 may overlap in the thickness direction Y within the bottom plate 22. The end portion of the first reinforcing sheet 37 and the end portion of the second reinforcing sheet 38 are in contact with each other in the thickness direction Y. By configuring the eaves gutter 20A of the first modified example, it is possible to improve the strength and heat resistance of the portion in the bottom plate 22 where the first reinforcing sheet 37 and the second reinforcing sheet 38 overlap, compared to the strength and heat resistance of other portions in the bottom plate 22. Furthermore, by adjusting the position where the ends of the reinforcing sheets 37, 38 overlap within the eaves gutter 20A, it is possible to improve the strength and heat resistance of the portion of the eaves gutter 20A where strength and heat resistance are required. In the eaves gutter 20A of the first modified example, as in the eaves gutter 20B of the second modified example shown in Figure 4, the end of the first reinforcing sheet 37 and the end of the second reinforcing sheet 38 may be abutted against each other in the width direction Z within the bottom plate 22 and in contact with each other. The eaves gutter 20B of the second modified example can also achieve the same effects as the eaves gutter 20 of the present embodiment.

[0031] As in the eaves gutter 20C of the third modified example shown in FIG. 5, the end of the first reinforcing sheet 37 and the end of the second reinforcing sheet 38 may be integrated. For example, the end of the first reinforcing sheet 37 and the end of the second reinforcing sheet 38 are integrated by fusing, welding, sewing, or the like in a state where they are overlapped in the thickness direction Y before performing the extrusion molding method, to form an integrated portion 40B. The integrated portion 40B is thicker in the thickness direction Y than the portion of the reinforcing sheets 37, 38 adjacent to the integrated portion 40B. In this example, the integrated portion 40B protrudes toward the first side Y1 in the thickness direction Y more than the reinforcing sheets 37, 38 adjacent to the integrated portion 40B. Hereinafter, this protruding portion is referred to as a protruding portion 40C. The integrated reinforcing sheets 37, 38 are placed in a die used for extrusion molding, and the extrusion molding is carried out to manufacture the eaves gutter 20C. According to the eaves gutter 20C of the third modified example, the strength and heat resistance of the integrated portion 40B, which is integrated with each other, can be improved more than the strength and heat resistance of the other portions of the bottom plate 22 than the integrated portion 40B. It is possible to prevent rainwater and the like from leaking from the integrated portion 40B, which is the connection portion between the first reinforcing sheet 37 and the second reinforcing sheet 38.

[0032] In the eaves gutter 20C of the third modified example, the overhanging portion 40C may be removed from the integrated portion 40B, as in the eaves gutter 20D of the fourth modified example shown in Fig. 6. The overhanging portion 40C is removed from the integrated portion 40B by rolling, cutting, or the like, before performing the extrusion molding method. According to the eaves gutter 20D of the fourth modified example, the reinforcing sheets 37, 38 can be integrated together, while the thickness of the bottom plate 22 can be reduced.

[0033] As in the eaves gutter 20E of the fifth modified example shown in Fig. 7, the first reinforcing sheet 37 may be embedded in the first side plate 23 and the bottom plate 22 along the first side plate 23 and the bottom plate 22, respectively. And the second reinforcing sheet 38 may be embedded in the second side plate 24 along the second side plate 24. In the eaves gutter 20E of the fifth modified example, a joint portion 40A where the first reinforcing sheet 37 and the second reinforcing sheet 38 are joined is formed at the connection portion between the bottom plate 22 and the second side plate 24. The reinforcing sheets 37 and 38 face each other in the gutter member 21 via a part of the gutter member 21. According to the eaves gutter 20E of the fifth modified example, the position where the first reinforcing sheet 37 and the second reinforcing sheet 38 face each other can be the connection part between the bottom plate 22 and the second side plate 24. As a result, for example, when the eaves gutter 20E is formed by extrusion molding or the like and a sink mark occurs at the connection part, the sink mark can be made inconspicuous even when looking at the exterior of the eaves gutter 20E.

[0034] In the eaves gutter 20E of the fifth modification, the first reinforcing sheet 37 may be embedded in the first side plate 23 along the first side plate 23, as in the eaves gutter 20F of the sixth modification shown in Fig. 8. The second reinforcing sheet 38 may be embedded in the second side plate 24 and the bottom plate 22 along the second side plate 24 and the bottom plate 22, respectively. In the eaves gutter 20F of the sixth modification, a joint 40A where the first reinforcing sheet 37 and the second reinforcing sheet 38 are joined is formed at the connection part between the bottom plate 22 and the first side plate 23. The reinforcing sheets 37 and 38 face each other in the gutter member 21 via a part of the gutter member 21. According to the eaves gutter 20F of the fifth modified example, it is possible to achieve the same effects as the eaves gutter 20E of the fourth modified example.

[0035] Second embodiment Next, a second embodiment of the present invention will be described with reference to Fig. 9. The same parts as those in the above embodiment are denoted by the same reference numerals, and their description will be omitted. Only the differences will be described. As shown in Fig. 9, the eaves gutter 55 of this embodiment includes a gutter member 56 and a plurality of reinforcing sheets 36. In addition to the components of the gutter member 21 of the first embodiment, the gutter member 56 includes a first support piece (support piece) 57A, a second support piece 57B, a first separating piece (separating piece) 58A, a second separating piece 58B, a first flange piece 59A, and a second flange piece 59B. In this embodiment, the configuration of the first support piece 57A and the configuration of the second support piece 57B are the same as each other. Therefore, the configuration of the first support piece 57A is indicated by adding the capital letter "A" to the reference numeral. The configuration of the second support piece 57B corresponding to the first support piece 57A is indicated by adding the capital letter "B" to the same reference numeral as the reference numeral of the first support piece 57A. In this way, duplicated explanations will be omitted. The same applies to the first separation piece 58A and the second separation piece 58B, etc.

[0036] The first support piece 57A extends from a middle portion of the bottom plate 22 in the width direction Z toward the first side Y1 in the thickness direction Y. The second support piece 57B is disposed closer to the second end 22c in the width direction Z than the first support piece 57A. The first spaced piece 58A extends along the width direction Z from a middle portion of the first side plate 23 in the thickness direction Y. The first spaced piece 58A is continuous with the tip of the first support piece 57A. The first support piece 57A and the first spaced piece 58A are formed in a rib shape (convex stripe shape) extending in the longitudinal direction X. An internal space 62A is formed in a portion surrounded by the bottom plate 22, the first side plate 23, the first support piece 57A, and the first separating piece 58A. The first flange piece 59A extends from the tip of the first side plate 23 along the width direction Z in a direction away from the second side plate 24.

[0037] In this embodiment, the multiple reinforcing sheets 36 include a first reinforcing sheet 37, a second reinforcing sheet 38, and a third reinforcing sheet 39. The first reinforcing sheet 37 is embedded within the first flange piece 59A, a portion of the first side Y1 in the thickness direction Y from the portion of the first side plate 23 where the first separated piece 58A is connected, the first separated piece 58A, and the first support piece 57A. The second reinforcing sheet 38 is embedded within the first side plate 23 along a portion of the second side Y2 in the thickness direction Y from the portion of the first separated piece 58A connected, and along a portion of the second side Y2 in the thickness direction Y from the portion of the bottom plate 22 and the second side plate 24 where the second separated piece 58B is connected. The second side Y2 is the side in the thickness direction Y opposite to the first side Y1. The third reinforcing sheet 39 is embedded within the second flange piece 59B, a portion on the first side Y1 in the thickness direction Y further than the portion where the second separation piece 58B is connected to the second side panel 24, along the second separation piece 58B, and the second support piece 57B.

[0038] As described above, according to the eaves gutter 55 of this embodiment, the strength and heat resistance of each portion can be easily adjusted. Furthermore, for example, when multiple eaves gutters 55 are packed, the multiple eaves gutters 55 are arranged overlapping each other in the thickness direction Y. At this time, the bottom plate 22 of another eaves gutter 55 (hereinafter also referred to as eaves gutter 55b) arranged on the first side Y1 in the thickness direction Y of the separation pieces 58A, 58B of the eaves gutter 55 (hereinafter also referred to as eaves gutter 55a) comes into contact with the separation pieces 58A, 58B of the eaves gutter 55a from the first side Y1 in the thickness direction Y. In the eaves gutter 55a, the separation pieces 58A, 58B are supported by the support pieces 57A, 57B, respectively. For this reason, for example, when the eaves gutter 55b is arranged higher than the eaves gutter 55a, the load due to gravity acting on the eaves gutter 55b can be supported by the separating pieces 58A, 58B and the support pieces 57A, 57B of the eaves gutter 55a. Therefore, when the eaves gutter 55a, 55b is arranged overlapping with each other in the thickness direction Y, the load acting on the side plates 23, 24 of the eaves gutter 55a can be suppressed, and the side plates 23, 24 of the eaves gutter 55a can be suppressed from deforming to open or close with respect to each other.

[0039] Furthermore, since multiple reinforcing sheets 36 are embedded not only in each portion of the bottom plate 22 and the side plates 23, 24, but also in the support pieces 57A, 57B and the spacing pieces 58A, 58B, the strength and heat resistance of the support pieces 57A, 57B and the spacing pieces 58A, 58B can be easily adjusted. In this way, even if the gutter member 56 has a complex shape including the support pieces 57A, 57B and the separating pieces 58A, 58B, the reinforcing sheet 36, which is a core material, can be disposed inside the support pieces 57A, 57B and the separating pieces 58A, 58B.

[0040] It should be noted that the gutter member 56 does not necessarily have to include the second support piece 57B, the second separating piece 58B, the first flange piece 59A, the second flange piece 59B, and the third reinforcing sheet 39.

[0041] Although the first and second embodiments of the present invention have been described above in detail with reference to the drawings, the specific configurations are not limited to these embodiments, and the present invention also includes modifications, combinations, deletions, etc. of the configurations within the scope of the gist of the present invention. Furthermore, it goes without saying that the configurations shown in each embodiment can be used in appropriate combinations. For example, in the first and second embodiments, the eaves gutter may include four or more reinforcing sheets 36. [Explanation of symbols]

[0042] 20,20A,20B,20C,20D,20E,20F,55 Eaves gutter 21,56 Gutter parts 22 Bottom plate 22b 1st end 22c 2nd end 22d part 23 1st side plate 24 Second side plate 36 Reinforcement sheet 37 First Reinforcement Sheet 38 Second Reinforcement Sheet 57A 1st support piece (support piece) 58A 1st separation piece (separation piece) Y thickness direction Y1 1st side Z width direction

Claims

1. A gutter member having a bottom plate, a first side plate extending from a first end of the bottom plate in the width direction toward a first side in the thickness direction of the bottom plate, and a second side plate extending from a second end of the bottom plate in the width direction toward the first side in the thickness direction, A plurality of reinforcing sheets are embedded in the gutter member along at least one of the bottom plate, the first side plate, and the second side plate, Equipped with, The length of the first side plate in the thickness direction is longer than the length of the second side plate in the thickness direction. The aforementioned plurality of reinforcing sheets include a first reinforcing sheet and a second reinforcing sheet. The first reinforcing sheet is embedded at least along the first side plate, The second reinforcing sheet is embedded at least along the second side plate, The length of the first reinforcing sheet in the thickness direction is longer than the length of the second reinforcing sheet in the thickness direction. The first reinforcing sheet and the second reinforcing sheet face each other within the gutter member, via a portion of the gutter member. A gutter with a base plate width of 200 mm or more.

2. The first reinforcing sheet is embedded along the first end portion in the width direction of the first side plate and the bottom plate, The gutter according to claim 1, wherein the second reinforcing sheet is embedded along the second end portion in the width direction of the second side plate and the bottom plate, respectively.

3. The gutter according to claim 1, wherein the first reinforcing sheet and the second reinforcing sheet face each other within the bottom plate via a portion of the bottom plate.

4. The first reinforcing sheet is embedded along the first side plate and the bottom plate, respectively. The second reinforcing sheet is embedded along the second side plate, The gutter according to claim 1, wherein the first reinforcing sheet and the second reinforcing sheet face each other within the gutter member via a portion of the gutter member.

5. The aforementioned multiple reinforcing sheets have a coefficient of linear expansion of -1.5 × 10⁻⁶. －５ (1 / °C) or higher 2.0 × 10 －５ The gutter according to any one of claims 1 to 4, which is formed of a stretched thermoplastic resin sheet or metal with a temperature of (1 / °C) or less.

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