Eaves gutters, rain gutter systems, buildings

Abstract

To provide an eaves gutter of which packaging performance is improved.SOLUTION: An eaves gutter 20 comprises a bottom plate 21, a pair of side plates 22A standing respectively toward one side Z1 in a thickness direction Z of the bottom plate from both ends in a width direction Y of the bottom plate, and a raised bottom part 23A provided at at least one of the bottom plate and the pair of side plates, and a length in the width direction at an outer surface of one side in the thickness direction of the bottom plate is equal to or greater than 120 mm and the bottom plate of a second eaves gutter 20a contacts with the raised bottom part of the eaves gutter when a second eaves gutter, which is a separate eaves gutter, is overlapped with one side in the thickness direction or other side Z2 in the thickness direction relative to the eaves gutter.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to eaves gutters, eaves gutter systems, and eaves gutter packaging. [Background technology]

[0002] Conventionally, eaves gutters have been used to collect rainwater that falls on the roof of a building (see, for example, Patent Document 1). A plurality of eaves gutters manufactured in a factory or the like are packaged in kraft paper (sheets) or the like to form an eaves gutter package. In the eaves gutter package of Patent Document 1, four eaves gutters are packaged in a bundled state with their openings fitted together. The eaves gutter package is then transported to, for example, the construction site for the eaves gutter. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-186962 Summary of the Invention [Problem to be solved by the invention]

[0004] Large eaves gutters used in large buildings such as logistics warehouses are generally constructed as follows: The eaves gutters are equipped with a bottom plate and a pair of side plates that rise from both ends of the bottom plate in the width direction toward one side of the bottom plate in the thickness direction. However, with this type of eaves gutter, when multiple eaves gutters are packed together to form an eaves gutter package, there is a problem in that the volume of the eaves gutter package becomes large (poor packability).

[0005] The present invention has been made in consideration of such problems, and aims to provide an eaves gutter, an eaves gutter system, and an eaves gutter package that have improved packaging properties. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention proposes the following means. The eaves gutter of the present invention comprises a bottom plate, a pair of side plates each rising from both widthwise ends of the bottom plate toward one side in the thickness direction of the bottom plate, and a raised bottom portion provided on at least one of the bottom plate and the pair of side plates, wherein the widthwise length of the outer surface of one side in the thickness direction of the bottom plate is 120 mm or more, and when another eaves gutter, a second eaves gutter, is placed on top of the eaves gutter on one side in the thickness direction or the other side in the thickness direction, the bottom plate of the second eaves gutter comes into contact with the raised bottom portion of the eaves gutter.

[0007] According to this invention, since the length of the outer surface of the bottom plate is 120 mm or more, the eaves gutter can be used as a large eaves gutter for use in logistics warehouses and the like. When packaging multiple eaves gutters, they are stacked in the thickness direction. At this time, the raised bottom portion of one eaves gutter contacts the bottom plate of the second eaves gutter adjacent to the first eaves gutter on one side or the other in the thickness direction. Therefore, for example, when the thickness direction is arranged along the vertical direction, the load due to gravity acting on one of the eaves gutter and the second eaves gutter can be supported by the raised bottom portion and the bottom plate, which are in contact with each other. This reduces the load acting between the pair of side plates of the eaves gutter and the pair of side plates of the second eaves gutter, and when the eaves gutter and the second eaves gutter are stacked in the thickness direction, it is possible to prevent the pair of side plates of the eaves gutter and the second eaves gutter from deforming openly or closed relative to each other. This improves packability when packaging multiple eaves gutters stacked in the thickness direction to form an eaves gutter package.

[0008] In the eaves gutter, the bottom-raised portion may be provided on the bottom plate. According to this invention, since no bottom-raised portions are provided on the pair of side plates, it is possible to more reliably prevent the load acting on the bottom-raised portions from being transmitted to the pair of side plates and causing deformation of the pair of side plates.

[0009] In addition, in the eaves gutter, the bottom-raised portion may include at least two side panel pieces extending from the bottom plate toward one side in the thickness direction, and a top panel piece connecting the ends of the at least two side panel pieces on one side in the thickness direction and extending along the bottom plate. According to this invention, a recess is formed in the portion of the raised portion surrounded by the top plate piece and at least two side plate pieces, and the mass of the raised portion can be reduced even if the raised portion has the same outer shape. Furthermore, because the outer surface of the top plate piece opposite the bottom plate is flat, when multiple eaves gutters are arranged stacked in the thickness direction, the eaves gutter adjacent to one side in the thickness direction of the eaves gutter equipped with this top plate piece can be stably supported.

[0010] The eaves gutter may also be provided with a first engagement portion formed on the bottom plate and a second engagement portion formed on the bottom raised portion and engaging with the first engagement portion in at least one of the longitudinal direction and the width direction of the eaves gutter. According to this invention, the first engagement portion and the second engagement portion are engaged with each other, so that the bottom plate of the second eaves gutter can be engaged with the raised bottom portion of the eaves gutter in at least one of the longitudinal direction and the width direction.

[0011] In the eaves gutter, each of the pair of side plates may be flat. According to this invention, the pair of side plates can be easily formed by, for example, bending a plate material.

[0012] Furthermore, when the second eaves gutter is placed on top of one side of the eaves gutter in the thickness direction, each of the pair of side panels does not need to have any unevenness on which the corner portion connecting the bottom plate and the side plate of the second eaves gutter can catch. According to this invention, it is possible to easily overlap the eaves gutters.

[0013] In addition, in the eaves gutter, the distance in the thickness direction between the part of the raised bottom portion that is farthest from the bottom plate in the thickness direction and the bottom plate may be equal to or greater than a first threshold value H1 mm according to equation (1). However, the thickness of the bottom plate and the thickness of the pair of side plates are each t mm, and the angle formed between the inner outer surface of the eaves gutter of the pair of side plates and the outer surface of the bottom plate is θ°.

[0014]

number

[0015] According to this invention, when the eaves gutter and the second eaves gutter are arranged stacked in the thickness direction and the bottom plate of the second eaves gutter is brought into contact with the raised bottom portion of the eaves gutter, the load acting between the pair of side plates of the eaves gutter and the pair of side plates of the second eaves gutter can be more reliably suppressed.

[0016] The eaves gutter may also have a protrusion provided on at least one of the pair of side panels that protrudes outward from the eaves gutter, and the length of the protrusion in the thickness direction may be less than or equal to the first threshold value H1. For example, the protrusions are used to support eaves gutters. According to this invention, when multiple eaves gutters are arranged overlapping in the thickness direction, the pitch in the thickness direction between the protrusions of one eaves gutter and the protrusions of the second eaves gutter is the first threshold value H1. Therefore, when multiple eaves gutters are arranged overlapping in the thickness direction, interference between the protrusions of adjacent eaves gutters in the thickness direction can be suppressed.

[0017] The eaves gutter system of the present invention is also an eaves gutter system comprising a plurality of eaves gutters and bottom-raising members arranged between the plurality of eaves gutters, wherein each of the eaves gutters comprises a bottom plate and a pair of side plates that rise from both ends of the bottom plate in the width direction toward one side of the bottom plate in the thickness direction, the width direction length of the outer surface of the one side of the bottom plate in the thickness direction is 120 mm or more, the plurality of eaves gutters are arranged overlapping in the thickness direction, and the bottom-raising members are arranged so as to contact the bottom plates of each of the pair of eaves gutters adjacent in the thickness direction.

[0018] According to this invention, since the length of the outer surface of the bottom plate is 120 mm or more, the eaves gutter can be used as a large eaves gutter for use in logistics warehouses and the like. When packaging multiple eaves gutters, they are stacked in the thickness direction. A bottom-raising member is placed between the bottom plates of a pair of eaves gutters adjacent in the thickness direction. The bottom-raising member contacts each of the bottom plates of the pair of eaves gutters adjacent in the thickness direction. Therefore, for example, when the thickness direction is arranged along the vertical direction, the load due to gravity acting on one of the pair of eaves gutters adjacent in the thickness direction can be supported by the bottom plates and bottom-raising member of the pair of eaves gutters that are in contact with each other. This reduces the load acting between one side plate and the other side plate of a pair of eaves gutters adjacent in the thickness direction, and prevents the pair of side plates of the eaves gutters from deforming openly or closed relative to each other when multiple eaves gutters are stacked in the thickness direction. This improves packability when packaging multiple eaves gutters stacked in the thickness direction to form an eaves gutter package.

[0019] In the eaves gutter system, the length of the bottom raising member in the thickness direction may be equal to or greater than a second threshold value H2 mm according to equation (2). However, the thickness of the bottom plate and the thickness of the pair of side plates are each t mm, and the angle formed between the inner outer surface of the eaves gutter of the pair of side plates and the outer surface of the bottom plate is θ°.

[0020]

number

[0021] According to this invention, when multiple eaves gutters are arranged stacked in the thickness direction and the bottom plates of a pair of eaves gutters are brought into contact with each other via a bottom-raising member, the load acting between one side plate and the other side plate of a pair of eaves gutters adjacent in the thickness direction can be more reliably suppressed.

[0022] In addition, the eaves gutter packaging of the present invention comprises a plurality of eaves gutters as described above and a sheet for packaging the plurality of eaves gutters, and is characterized in that the plurality of eaves gutters are arranged stacked in the thickness direction. According to this invention, an eaves gutter package can be constructed using an eaves gutter with improved packability. [Effects of the Invention]

[0023] The eaves gutter, eaves gutter system, and eaves gutter packaging of the present invention can improve packaging properties. [Brief explanation of the drawings]

[0024] [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. [Figure 2] This is a cross-sectional view of the main parts of multiple eaves gutters arranged stacked in the thickness direction. [Figure 3] FIG. 3 is an enlarged view of a main part in FIG. 2. [Figure 4] FIG. 2 is a cross-sectional view of a main part of an eaves gutter in an example of the first embodiment of the present invention. [Figure 5] FIG. 10 is a cross-sectional view of a main part of an eaves gutter in another example of the first embodiment of the present invention. [Figure 6] FIG. 10 is a cross-sectional view of a main part of an eaves gutter in another example of the first embodiment of the present invention. [Figure 7] This is a partially broken oblique view of the eaves gutter package of this embodiment in which the eaves gutter is packaged. [Figure 8] A front view of another embodiment of an eaves gutter packaging body with a portion cut away. [Figure 9] FIG. 10 is a cross-sectional view of a conventional eaves gutter package. [Figure 10] FIG. 2 is a cross-sectional view of a main part of an eaves gutter in a first modified example of the first embodiment of the present invention. [Figure 11] FIG. 10 is a cross-sectional view of an eaves gutter in a second modified example of the first embodiment of the present invention. [Figure 12] FIG. 10 is a cross-sectional view of the main part of conventional eaves gutters arranged one on top of the other in the thickness direction. [Figure 13] FIG. 10 is a cross-sectional view of an eaves gutter in a third modified example of the first embodiment of the present invention. [Figure 14] FIG. 10 is a cross-sectional view of an eaves gutter in a fourth modified example of the first embodiment of the present invention. [Figure 15] FIG. 10 is a cross-sectional view of an eaves gutter in a fifth modified example of the first embodiment of the present invention. [Figure 16] FIG. 10 is a cross-sectional view of an eaves gutter in a sixth modified example of the first embodiment of the present invention. [Figure 17] FIG. 10 is a cross-sectional view of an eaves gutter in a seventh modified example of the first embodiment of the present invention. [Figure 18] FIG. 10 is a cross-sectional view of an eaves gutter in an eighth modified example of the first embodiment of the present invention. [Figure 19] FIG. 4 is a cross-sectional view of an eaves gutter according to a second embodiment of the present invention. [Figure 20] This is a cross-sectional view showing a state in which multiple eaves gutters are stacked in the thickness direction. [Figure 21] FIG. 10 is a cross-sectional view of an eaves gutter in a first modified example of the second embodiment of the present invention. [Figure 22] This is a cross-sectional view showing a state in which multiple eaves gutters are stacked in the thickness direction. [Figure 23] FIG. 10 is a cross-sectional view of an eaves gutter in a second modified example of the second embodiment of the present invention. [Figure 24] This is a cross-sectional view showing a state in which multiple eaves gutters are stacked in the thickness direction. [Figure 25] FIG. 10 is a cross-sectional view of the eaves gutter system according to the third embodiment of the present invention. [Figure 26] FIG. 2 is a plan view of the eaves gutter system. [Figure 27] FIG. 2 is a side view illustrating the operation when overlapping the eaves gutters of the first embodiment of the present invention. [Figure 28] FIG. 13 is a side view illustrating the operation when overlapping eaves gutters in the ninth modified example of the first embodiment of the present invention. [Figure 29] FIG. 10 is a perspective view of an eaves gutter packaging body in a second modified example. [Figure 30] FIG. 11 is a perspective view of an eaves gutter packaging body in a third modified example. [Figure 31] FIG. 13 is a cross-sectional view showing a state in which eaves gutters in an eighth modified example of the first embodiment of the present invention are arranged in a stacked and uneven position. [Figure 32] FIG. 20 is a cross-sectional view of an eaves gutter in a tenth modified example of the first embodiment of the present invention. [Figure 33] FIG. 13 is a cross-sectional view of an eaves gutter in an eleventh modified example of the first embodiment of the present invention. [Figure 34] FIG. 22 is a cross-sectional view of an eaves gutter in a twelfth modified example of the first embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] (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 18 and 27 to 34. FIG. As shown in Fig. 1, 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 an eaves gutter 20, a connection portion 35, and a downspout 40. 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 bottom plate 21, a pair of side plates 22A, 22B, and a pair of raised bottom portions 23A, 23B. In this embodiment, the configuration of the raised bottom portion 23A and the configuration of the raised bottom portion 23B are identical to each other. Therefore, the configuration of the raised bottom portion 23A is indicated by adding the capital letter "A" to a number or a number and a lowercase English letter. The configuration of the raised bottom portion 23B corresponding to the raised bottom portion 23A is indicated by adding the capital letter "B" to the same number or a number and a lowercase English letter as the raised bottom portion 23A. This avoids redundant explanation. For example, the first plate piece 26A of the raised bottom portion 23A and the first plate piece 26B of the raised bottom portion 23B have the same configuration. The same applies to the side plates 22A, 22B, etc.

[0026] The bottom plate 21, the side plate (first side plate) 22A, and the side plate (second side plate) 22B are each formed in a flat plate shape. The thickness of the bottom plate 21 and the thickness of the pair of side plates 22A and 22B are each t mm. The thickness t is preferably 0.5 mm or more and 5 mm or less, and more preferably 2 mm or more and 5 mm or less. However, the thickness of the bottom plate 21 and the thickness of the pair of side plates 22A and 22B may be different from each other. The bottom plate 21 has a through hole 21a formed therethrough in the thickness direction Z of the bottom plate 21. The through hole 21a is formed in the center of the bottom plate 21 in the width direction Y. The width direction Y here refers to a direction perpendicular to both the longitudinal direction X and the thickness direction Z. The side plate 22A rises from a first end (end on one side Y1) of the bottom plate 21 in the width direction Y toward one side Z1 in the thickness direction Z of the bottom plate 21. The side plate 22B rises from a second end (end on the other side Y2 opposite to the one side Y1) of the bottom plate 21 in the width direction Y toward one side Z1 in the thickness direction Z. In other words, the pair of side plates 22A, 22B rise from both ends of the bottom plate 21 in the width direction Y toward one side Z1 in the thickness direction Z. In this example, the length of the side plate 22A in the thickness direction Z and the length of the side plate 22B in the thickness direction Z are equal to each other. However, there is no limitation on these lengths, and for example, the length of the side plate 22A in the thickness direction Z may be longer than the length of the side plate 22B in the thickness direction Z.

[0027] The length L1 in the width direction Y of the outer surface 21b of the bottom plate 21 on one side Z1 in the thickness direction Z is 120 mm or more. The length L1 of this outer surface 21b is preferably 300 mm or more. The length L1 of the outer surface 21b is 500 mm or less. The angle formed between the inner outer surfaces 22aA, 22aB of the eaves gutters 20 of the pair of side plates 22A, 22B and the outer surface 21b of the bottom plate 21 is θ°. The angle θ is greater than 90° and less than 180°, and preferably greater than 91° and less than or equal to 110°. In addition, if the bottom plate 21 of the eaves gutter is formed with the first bottom-raising piece 117 described below, rounded corner shapes, etc., it is preferable to set the length L1 and angle θ of the original eaves gutter to the length L1 and angle θ of the eaves gutter when these shapes are not formed on the bottom plate 21.

[0028] The bottom-raised portion 23A includes a first plate piece 26A and a second plate piece 27A. The first plate piece 26A and the second plate piece 27A are each formed in a flat plate shape. The first plate piece 26A extends in the width direction Y from the center of the side plate 22A in the thickness direction Z toward the inside of the eaves gutter 20. The outer surface of one side Z1 in the thickness direction Z of the first plate piece 26A is a flat surface along the width direction Y. The second plate piece 27A extends from the tip of the first plate piece 26A toward the other side Z2 opposite to the one side Z1 in the thickness direction Z. An end of the other side Z2 of the second plate piece 27A is connected to the bottom plate 21. The first plate piece 26A and the second plate piece 27A are formed in an L-shape when viewed along the longitudinal direction X. A recess 28A is formed in the raised bottom portion 23A between the first plate piece 26A and the second plate piece 27A. This recess 28A is surrounded by the bottom plate 21 and the side plate 22A, forming a first internal space. The raised bottom portion 23A is provided on the bottom plate 21 and the side plate 22A so as to straddle the bottom plate 21 and the side plate 22A. This makes it possible to prevent the side plate 22A from deforming relative to the bottom plate 21. The raised bottom portion may have an internal space formed therein instead of a recess.

[0029] The raised bottom portion 23B includes a first plate piece 26B and a second plate piece 27B configured similarly to the first plate piece 26A and the second plate piece 27A. A recess 28B is formed in the raised bottom portion 23B. The raised bottom portion 23A and the raised bottom portion 23B are arranged at an interval from each other in the width direction Y. That is, the raised bottom portions 23A, 23B are arranged at each end of the bottom plate 21 in the width direction Y. The through hole 21a is formed in a position between the raised bottom portions 23A, 23B on the bottom plate 21. With this configuration, the through hole 21a can be easily formed in the eaves gutter 20, and there is no problem with connecting the connection portion 35 (drain). When viewed in the thickness direction Z, it is preferable that at least a part of the bottom-raised portions 23A, 23B is arranged within the outer peripheral edge of the bottom plate 21. When the eaves gutters 20 are arranged one on top of the other in the thickness direction Z, the part arranged within this outer peripheral edge comes into contact with the bottom plate 21 of the eaves gutters 20 adjacent in the thickness direction Z.

[0030] The eaves gutter 20 is formed by extrusion molding using resin or by bending a vinyl chloride steel plate or the like. The eaves gutter 20 may be formed from a single resin or a composite (multi-layer) resin. The eaves gutter 20 may also be formed from a composite product in which metal is coated with resin. In other words, a metal core material may be placed inside the eaves gutter.

[0031] As shown in Figure 2, a second eaves gutter 20a (also simply referred to as eaves gutter 20a), which is a separate eaves gutter 20, is placed on top of one side Z1 in the thickness direction Z of the eaves gutter 20. When the eaves gutter 20 is placed on top of the other, the orientation of the eaves gutter 20 in the width direction Y is aligned. It is preferable that there is nothing between the pair of side plates 22A, 22B that would hinder the overlapping of the eaves gutter 20. At this time, the bottom plate 21 of the second eaves gutter 20a comes into contact with the bottom raised portions 23A, 23B of the eaves gutter 20. The eaves gutter 20 is arranged so that the thickness direction Z is along the vertical direction and one side Z1 is upward. Note that the orientation of the eaves gutter 20 is not limited to this. The eaves gutter 20 may also be arranged so that the thickness direction Z is inclined with respect to the vertical direction. 1, the eaves gutter 20 is disposed under the eaves of the building 200. That is, the eaves gutter 20 is disposed below an edge 201a of a roof 201 of the building 200.

[0032] The connecting portion 35 is formed in a cylindrical shape. The first end of the connecting portion 35 has an inner diameter and an outer diameter that are larger than those of other portions of the connecting portion 35. The first end of the connecting portion 35 is connected to the opening periphery of the through hole 21a in the bottom plate 21 of the eaves gutter 20. The downspout 40 is arranged so that its axis is aligned in the vertical direction. The upper end of the downspout 40 is connected to a second end of the connection portion 35, which is opposite the first end. The lower end of the downspout 40 is connected to the ground, although not shown. The lower end of the downspout 40 is connected to a known water collection basin buried underground. The water collection basin is connected to a drainage structure such as a sewer pipe via a connecting pipe.

[0033] Here, as shown in Figure 2, we will explain the results of examining the distance L3 (height of the raised bottom portion) in the thickness direction Z between the part 26aA in the raised bottom portion 23A of one eaves gutter 20 that is farthest from the bottom plate 21 in the thickness direction Z and the bottom plate 21. Part 26aA is the outer surface of one side Z1 in the thickness direction Z of the first plate piece 26A. In the state shown in Figure 2, the side plate 22A of the eaves gutter 20 and the side plate 22A of the eaves gutter 20a are in contact with each other without being deformed. The eaves gutter 20a is arranged above the eaves gutter 20, overlapping it.

[0034] Figure 3 is an enlarged view (cross-sectional view) of a main part in Figure 2. Note that Figure 3 does not show the bottom-raised portion 23A of the eaves gutters 20, 20a. In the cross section shown in Figure 3, the intersection of the underside of the bottom plate 21 and the outer surface 22bA of the side plate 22A on the outside in the width direction Y for the eaves gutters 20, 20a is defined as point P1. The point of the eaves gutter 20 that is in contact with point P1 of the eaves gutter 20a is defined as point P2. The intersection of the perpendicular line drawn from point P2 to the outer surface 22bA and the outer surface 22bA for the eaves gutter 20 is defined as point P3. The angle P2-P1-P3 is (θ-90)°. In this case, the distance between the bottom plate 21 of the eaves gutter 20 and the bottom plate 21 of the eaves gutter 20a in the thickness direction Z is defined as H0. The distance H0 is equal to the distance L3.

[0035] In the triangle P1-P2-P3, the length of side P1-P2 is (H0+t). The length of side P2-P3 is t. Therefore, equation (6) holds. By transforming equation (6), equation (8) is obtained via equation (7).

[0036]

number

[0037] In addition, when the formula (8) is transformed based on known mathematical formula transformations, the formula (9) is obtained. That is, the formula (8) is equivalent to the formula (9). The formula (8) can be transformed into formulas other than the formula (9) based on known mathematical formula transformations. That is, the distance H0 represented by the formula (8) means that it includes the distance H0 represented by a formula that can be transformed from the formula (8) based on known mathematical formula transformations.

[0038]

Number

[0039] As described above, the distance H0 is obtained as in the formula (11). At this time, it is preferable that the distance L3 is equal to or greater than the first threshold value H1mm by the formula (12) (that is, H1≦L3). More preferably, the distance L3 is equal to the first threshold value H1. That is, it is most preferable that the side plates 22A and 22B of the eaves gutters 20 and 20a arranged overlapping each other completely overlap without a gap. In addition, when H1<L3, that is, when the first threshold value H1 is smaller than the distance L3, a gap is formed between the side plates 22A and 22B of the two eaves gutters 20 and 20a arranged overlapping each other, and the two eaves gutters 20 and 20a can move in the width direction Y. In this case, since it causes the collapse of the load, it is preferable that H1<L3≦(H1 + 5)mm. Preferably, the distance L3 is not more than 1 times the first threshold value H1. The ratio of the distance L3 to the length in the thickness direction Z of the internal space of the eaves gutter 20 is preferably not more than (1 / 2) times. When this ratio is not more than (1 / 2) times, when the eaves gutters 20 are stacked in the thickness direction Z, an effect of reducing the volume appears. When this ratio is (1 / 2) or more, stacking the eaves gutters 20 face to face results in a smaller volume during loading. In addition, when [the height of the eaves gutter 20 (the length in the thickness direction Z)] / 2 < L3, that is, when the distance L3 is higher than half of the height of the eaves gutter 20, the packing volume of the stacked eaves gutters 20 and 20a becomes too large.

[0040]

Number

[0041] The distance H0 (first threshold H1) takes a value as shown in Table 1 depending on the thickness t and the angle θ.

[0042] [Table 1]

[0043] For example, let us consider the case where the thickness t is 1.0 mm in Table 1. When the angle θ is 92.5°, the distance H0 according to equation (11) is 21.9 mm. Similarly, when the angle θ is 95.0°, the distance H0 is 10.5 mm.

[0044] For example, three types of examples will be described for the case where the thickness t is 1.9 mm. The height of the eaves gutter 20 (length in the thickness direction Z) is 300 mm. As shown in Figure 4, when the angle θ is 92.5°, the distance H0 is 42 mm. When the eaves gutter 20 shown in Figure 4 is projected onto the thickness direction Z, the length in the width direction Y (hereinafter referred to as the projected width) is 328 mm. The results are summarized in Table 2.

[0045] [Table 2]

[0046] Table 2 shows the projection width etc. when the angle θ is 92.5°, 95.0°, and 100.0°. Table 2 also shows the distance H0, the exclusive area m2 / m, the stack height mm etc. The exclusive area is the value obtained by multiplying the projected width by 1 m of the length in the longitudinal direction X of the eaves gutter 20. The overlap height is the value obtained by adding the distance H0 to the thickness t of 1.9 mm. Here, the top space mm means the value of (the inner thickness dimension of the eaves gutter - the height of the raised bottom part) or the value of (the height of the eaves gutter - the thickness of the eaves gutter - the height of the raised bottom part). The number of layers is calculated by the formula (14) assuming that the length in the thickness direction Z of the eaves gutter packaging body 2 described later is 900 mm. (thickness of the eaves gutter + height of the raised bottom part) / (900 - length of the top space in the thickness direction) (14) Length / area m / m2 means the length of eaves gutter that can be stored per 1 m2.

[0047] As shown in Fig. 5, when the angle θ is 95.0°, the distance H0 is 20 mm. The projected width of the eaves gutter 20 shown in Fig. 5 is 352 mm. As shown in Fig. 6, when the angle θ is 100.0°, the distance H0 is 9 mm. The projected width of the eaves gutter 20 shown in Fig. 6 is 401 mm.

[0048] Here, as shown in Fig. 7, we will explain the eaves gutter package 2 of this embodiment, in which multiple eaves gutters 20 configured as described above are packaged in kraft paper (sheet) 45. Note that Fig. 7 and Fig. 8, which will be described later, show some of the eaves gutters 20 without showing them. The eaves gutter packaging body 2 comprises a plurality of eaves gutters 20 and kraft paper 45 for packaging the plurality of eaves gutters 20. The plurality of eaves gutters 20 are arranged stacked in the thickness direction Z. The plurality of eaves gutters 20 constitute an eaves gutter laminated body 50. The plurality of eaves gutters 20 are supported from below by a pallet 46. In other words, the plurality of eaves gutters 20 and the pallet 46 are packaged together in the kraft paper 45. The sheet is not limited to the kraft paper 45, but may be, for example, a resin sheet, cloth, etc. The eaves gutter packaging body 2 may be bound with string or the like.

[0049] As shown in Table 2, when the angle θ is 92.5°, the number of layers of the eaves gutter packaging body 2 is 14. Similarly, when the angle θ is 95.0°, the number of layers of the eaves gutter packaging body 2 is 28. When the angle θ is 100.0°, the number of layers of the eaves gutter packaging body 2 is 55.

[0050] Furthermore, as in the eaves gutter packaging body 2a of the first modified example shown in Figure 8, multiple eaves gutter laminates 50 may be arranged side by side in the width direction Y on a pallet 46. A known cushioning material 51 may be placed between adjacent eaves gutter laminates 50 in the width direction Y. The multiple eaves gutter laminates 50 and the cushioning material 51 are covered with a film 52 or the like.

[0051] A conventional (comparative) eaves gutter packaging body 2b is shown in Figure 9. The conventional eaves gutter 55 does not have the raised bottom portions 23A, 23B compared to the eaves gutter 20. The height (length in the thickness direction) of the eaves gutter 55 is 300 mm. A pair of eaves gutters 55 arranged overlapping in the thickness direction and open at the top, and another pair of eaves gutters 55 arranged overlapping in the thickness direction and open at the bottom, are arranged overlapping with their openings facing each other to form an eaves gutter laminate 56. Three eaves gutter laminates 56 are stacked in the thickness direction and packaged in kraft paper 57 to form the eaves gutter package 2b. The height of the eaves gutter package 2b is approximately 900 mm. The eaves gutter package 2b has 12 eaves gutters 55. When compared when the height of the eaves gutter packaging is approximately 900 mm, it was found that the eaves gutter packaging 2 of this embodiment can accommodate more eaves gutters with approximately the same volume (better packability) than the conventional eaves gutter packaging 2b.

[0052] In the eaves gutter package 2c of the second modified example shown in Figure 29, a second pallet 146 is placed on a first pallet 145. For example, the first pallet 145 is made of metal. The second pallet 146 is made of wood. A plurality of (two in this example) eaves gutter laminates 50 are placed on the second pallet 146, spaced apart from each other in the width direction Y. It is preferable that the multiple eaves gutters 20 in the eaves gutter laminate 50 are fixed to each other with a shrink film or the like. A cardboard jig 147 is placed inside the eaves gutter laminate 50. The multiple eaves gutter laminates 50 are fixed to pallets 145, 146 with fastening bands 148 such as PP (polypropylene) bands. The jig 147 prevents the eaves gutter laminate 50 (eaves gutter 20) from shrinking in diameter (collapse). The jig 147 has the advantage of being inexpensive and easily made into a complex structure. The jig 147 may be provided with a protrusion that prevents the securing band 148 from shifting in the longitudinal direction X or the like.

[0053] The eaves gutter packaging body 2d of the third modified example shown in Figure 30 includes a cover 149 in addition to the components of the eaves gutter packaging body 2d of the second modified example. For example, the cover 149 is made of cardboard. The cover 149 covers only the top of the multiple eaves gutter stacks 50. A tie-down band 148 is looped around the top of the cover 149. The cover 149 is necessary to prevent the eaves gutter laminate 50 from overheating in the summer. By having the cover 149 cover only the upper parts of the multiple eaves gutter laminates 50, the cover 149 can be made smaller. The cover 149 may cover the entire eaves gutter laminate 50 or may cover only one eaves gutter laminate 50.

[0054] As described above, according to the eaves gutter 20 of this embodiment, the length L1 of the outer surface 21b of the bottom plate 21 is 120 mm or more, so the eaves gutter 20 can be used as a large eaves gutter for use in logistics warehouses, etc. When packaging multiple eaves gutters 20, the multiple eaves gutters 20 are stacked in the thickness direction Z. At this time, the raised bottom portions 23A, 23B of the eaves gutter 20 contact the bottom plate 21 of the second eaves gutter 20a adjacent to the eaves gutter 20 on one side Z1 in the thickness direction Z. Therefore, for example, when the eaves gutter 20 is arranged so that the thickness direction Z is along the vertical direction, the load due to gravity acting on the second eaves gutter 20a can be supported by the raised bottom portions 23A, 23B of the eaves gutter 20 and the bottom plate 21 of the second eaves gutter 20a, which are in contact with each other. Therefore, the load acting between the pair of side plates 22A, 22B of the eaves gutter 20 and the pair of side plates 22A, 22B of the second eaves gutter 20a is reduced, and when the eaves gutter 20 and the second eaves gutter 20a are stacked in the thickness direction Z, the pair of side plates 22A, 22B of the eaves gutter 20 and the second eaves gutter 20a are prevented from deforming openly or closed relative to each other. This allows for improved packing properties when a plurality of eaves gutters 20 stacked in the thickness direction Z are packed to form an eaves gutter package 2.

[0055] The outer surface of one side Z1 in the thickness direction Z of the first plate pieces 26A, 26B of the raised bottom portions 23A, 23B is a flat surface along the width direction Y. This increases the strength of the raised bottom portions 23A, 23B against loads acting in the thickness direction Z, allowing multiple eaves gutters 20 to be stably stacked in the thickness direction Z. The eaves gutters 20 arranged one on top of the other in the thickness direction Z are in surface contact with each other, which prevents the eaves gutters 20 from rubbing against each other through line contact or point contact, and the appearance of the eaves gutters 20 can be maintained without causing scratches or the like. In the eaves gutter 20 of this embodiment, the side plates 22A, 22B each rise from the bottom plate 21 toward one side Z1 in the thickness direction Z. Therefore, when arranging multiple eaves gutters 20 in a stacked manner in the thickness direction Z, the side plates 22A, 22B can be used as guides (introduction guides) for arranging the eaves gutters 20 in a stacked manner. The eaves gutter 20 can be easily stacked in the thickness direction Z even with a general automatic machine. Because the thickness of the bottom plate 21 and the thickness of the pair of side plates 22A, 22B are the same, the eaves gutter 20 can be easily formed by extrusion molding or the like.

[0056] A recess 28A is formed in the raised bottom portion 23A, which allows the mass of the raised bottom portion 23A to be reduced even if the raised bottom portion has the same outer shape. The pair of side plates 22A, 22B are each flat. Therefore, for example, the pair of side plates 22A, 22B can be easily formed by bending a plate material. In this case, the side plates 22A, 22B can more effectively fulfill the role of the introduction guide. That is, the pair of side plates 22A, 22B of the eaves gutter 20 according to this embodiment shown in FIG. 27 differs from the side plates 22A, 22B of the eaves gutter 140 shown in FIG. 28 in that the side plates 22A, 22B do not have uneven portions 141 (step portions). The uneven portions 141 shown in FIG. 28 catch the corner portions 24 of the second eaves gutter 140a. The corner portions 24 are portions of the eaves gutter 140, 140a (eaves gutter 20, 20a) that connect the bottom plate 21 and the side plates 22A, 22B. When the second eaves gutter 140a is placed on top of the eaves gutter 140 on one side Z1 in the thickness direction Z, the corner portion 24 of the second eaves gutter 140a gets caught on the uneven portion 141 of the eaves gutter 140. In contrast, in the eaves gutter 20 according to this embodiment shown in FIG. 27, which does not have such uneven portion 141, the corner portion 24 of the second eaves gutter 20a does not get caught on the side panels 22A, 22B. Therefore, the role of the introduction guide is more effectively exerted.

[0057] The distance L3 is equal to or greater than the first threshold value H1 in equation (12). Therefore, when the eaves gutter 20 and the second eaves gutter 20a are arranged overlapping in the thickness direction Z and the bottom plate 21 of the second eaves gutter 20a is brought into contact with the bottom-raised portions 23A, 23B of the eaves gutter 20, the load acting between the pair of side plates 22A, 22B of the eaves gutter 20 and the pair of side plates 22A, 22B of the second eaves gutter 20a can be more reliably suppressed. Furthermore, according to the eaves gutter packaging body 2 of this embodiment, the eaves gutter 20 with improved packability can be used to construct the eaves gutter packaging body 2. To construct the eaves gutter packaging body 2, there is no need to prepare a dedicated box for the eaves gutter 20 or auxiliary parts. There is no limit to the number of bottom-raised portions that the eaves gutter 20 has, and it may be one, or three or more.

[0058] The configuration of the eaves gutter 20 of this embodiment can be modified in various ways as described below. As in the first modified example eaves gutter 60 shown in Figure 10, in addition to each component of the eaves gutter 20, it may be provided with a first recess (first engagement portion) 21c formed in the bottom plate 21 and a first protrusion (second engagement portion) 26bA formed in the bottom raised portion 23A. In this first modified example, for example, the first recess 21c is recessed in a triangular pyramid shape from the outer surface of the other side Z2 in the thickness direction Z of the bottom plate 21. The first protrusion 26bA is formed in a triangular pyramid shape and protrudes from the outer surface of one side Z1 in the thickness direction Z of the first plate piece 26A toward one side Z1 in the thickness direction Z. The first protrusion 26bA engages with the first recess 21c of the second eaves gutter 60a in both the longitudinal direction X and the width direction Y.

[0059] According to the first modified example of the eaves gutter 60, the first recess 21c and the first protrusion 26bA engage with each other, so that the bottom plate 21 of the second eaves gutter 60a can be engaged with the bottom-raised portion 23A of the eaves gutter 60 in the longitudinal direction X and the width direction Y, respectively. In the above description, the first engaging portion is the first recess 21c, and the second engaging portion is the first protrusion 26bA. However, the first engaging portion may be the first protrusion, and the second engaging portion may be the first recess that engages with the first protrusion. The second engagement portion may engage with the first engagement portion in at least one of the longitudinal direction X and the width direction Y. For example, when the second engagement portion engages with the first engagement portion in the longitudinal direction X, the first engagement portion is a groove extending in the width direction Y, and the second engagement portion is a ridge extending in the width direction Y and engaging with the groove.

[0060] As in the eaves gutter 65 of a second modified example shown in Figure 11, in addition to each component of the eaves gutter 20, a pair of protrusions 66A, 66B may be provided. The protrusions 66A, 66B are provided at the ends of one side Z1 in the thickness direction Z of the pair of side panels 22A, 22B. The protrusions 66A, 66B protrude toward the outside of the eaves gutter 65 along the width direction Y. It is preferable that the length L5 of the protrusions 66A, 66B in the thickness direction Z is equal to or less than the first threshold value H1. The protrusions 66A, 66B are so-called outer ears and are used to support the eaves gutter 65, etc.

[0061] A conventional eaves gutter 70 will now be described with reference to Fig. 12. The length L6 in the thickness direction Z of the protrusion 71A of the eaves gutter 70 exceeds the first threshold value H1. As a result, the protrusion 71A of the second eaves gutter 70a, which is the eaves gutter 70 arranged adjacent to one side Z1 in the thickness direction Z relative to the eaves gutter 70, interferes with the protrusion 71A of the eaves gutter 70 in the thickness direction Z, causing at least one side panel 22A of the eaves gutter 70 and the second eaves gutter 70a to deform so as to open or close.

[0062] In contrast, according to the eaves gutter 65 of the second modified example, when multiple eaves gutters 65 are arranged overlapping in the thickness direction Z, the pitch in the thickness direction Z between the protrusion 66A of the eaves gutter 65 and the protrusion 66A of the second eaves gutter 65a is the first threshold value H1, as shown in Fig. 11. The length L5 in the thickness direction Z of the protrusion 66A is less than or equal to the pitch in the thickness direction Z of the protrusions 66A (first threshold value H1), so when multiple eaves gutters 65 are arranged overlapping in the thickness direction Z, it is possible to prevent the protrusions 66A of eaves gutters 65 adjacent to each other in the thickness direction Z from interfering with each other. Furthermore, when the length L5 of the protrusions 66A, 66B is set to the first threshold value H1, the protrusions 66A, 66B of the eaves gutter 65 and the protrusions 66A, 66B of the second eaves gutter 65a come into contact with each other in the thickness direction Z. Therefore, the load acting on the second eaves gutter 65a can be supported not only by the raised bottom portions 23A, 23B of the eaves gutter 65, but also by the protrusions 66A, 66B of the eaves gutter 65. Therefore, the second eaves gutter 65a can be supported more stably by the eaves gutter 65. The position of the protrusion 66A on the side plate 22A in the thickness direction Z is not particularly limited. The same applies to the protrusion 66B. The protrusion may be provided on at least one of the pair of side plates 22A, 22B.

[0063] It is preferable that the eaves gutter 70 does not include the protrusions 66A, 66B. Furthermore, it is preferable that the eaves gutter does not have a second protrusion configured as follows on the pair of side plates 22A, 22B: This second protrusion is a so-called inner ear that protrudes from the pair of side plates 22A, 22B toward the inside of the eaves gutter along the width direction Y.

[0064] As in the case of an eaves gutter 75 of a third modified example shown in FIG. 13, the pair of raised bottom portions 23A, 23B of the eaves gutter 20 may be replaced by a pair of raised bottom portions 76A, 76B and second convex portions 77A, 77B. The bottom-raising portions 76A and 76B are provided on the bottom plate 21 and extend from both ends of the bottom plate 21 in the width direction Y toward one side Z1 in the thickness direction Z. In the eaves gutter 75 of the third modified example, the portion 76aA of the raised bottom portion 76A that is farthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of one side Z1 of the raised bottom portion 76A in the thickness direction Z. The distance L8 in the thickness direction Z between the portion 76aA and the bottom plate 21 is equal to or greater than the first threshold value H1. The second protrusion 77A is provided in the middle of the side plate 22A in the thickness direction Z. The second protrusion 77A protrudes toward the outside of the eaves gutter 75. The eaves gutter 75 of the third modified example configured as above can also achieve the same effects as the eaves gutter 20 of this embodiment. The eaves gutter 75 does not necessarily have to include the second protrusions 77A and 77B.

[0065] As in the eaves gutter 80 of the fourth modified example shown in Figure 14, in the eaves gutter 75 of the third modified example, a pair of side plates 81A, 81B may be provided instead of the pair of side plates 22A, 22B and second protrusions 77A, 77B. The side plate 81A is formed in a shape obtained by bending the side plate 22A. The side plate 81A includes a first side plate piece 82A and a second side plate piece 83A. The first side plate piece 82A and the second side plate piece 83A are each formed in a flat plate shape. The first side plate piece 82A rises from a first end (end on one side Y1) of the bottom plate 21 in the width direction Y toward one side Z1 in the thickness direction Z. The second side plate piece 83A rises from an end on one side Z1 in the thickness direction Z of the first side plate piece 82A toward one side Z1 in the thickness direction Z. The angle formed between the outer surface of the inside of the eaves gutter 80 of the first side plate piece 82A and the outer surface 21b of the bottom plate 21 is the angle θ°. On the other hand, the angle θ2 formed between the inner outer surface of the eaves gutter 80 of the second side plate piece 83A and the outer surface 21b of the bottom plate 21 is smaller than the angle θ° and larger than 90°.

[0066] As in the case of an eaves gutter 85 of a fifth modified example shown in FIG. 15, the pair of raised bottom portions 23A, 23B of the eaves gutter 20 may be replaced by a pair of raised bottom portions 86A, 86B. The bottom raising portions 86A, 86B are provided on the bottom plate 21, and extend from both ends of the bottom plate 21 in the width direction Y toward the other side Z2 in the thickness direction Z. In the eaves gutter 85 of the fifth modified example, the portion 86aA of the raised bottom portion 86A that is farthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of the other side Z2 of the raised bottom portion 86A in the thickness direction Z. The distance L10 in the thickness direction Z between the portion 86aA and the bottom plate 21 is equal to or greater than the first threshold value H1.

[0067] In the eaves gutter 85 of the fifth modified example configured as described above, when multiple eaves gutters 85 are packed, the multiple eaves gutters 85 are arranged overlapping each other in the thickness direction Z. At this time, the bottom-raised portions 86A, 86B of the eaves gutter 85 come into contact with the bottom plate 21 of the second eaves gutter 85a that is adjacent to this eaves gutter 85 on the other side Z2 in the thickness direction Z. Therefore, for example, when arranged so that the thickness direction Z is along the vertical direction, the load due to gravity acting on the eaves gutter 80 can be supported by the bottom-raised portions 86A, 86B of the eaves gutter 85 and the bottom plate 21 of the second eaves gutter 80a, which come into contact with each other. Furthermore, the raised bottom portions 86A, 86B are provided on the bottom plate 21. Therefore, since the pair of side plates 22A, 22B are not provided with raised bottom portions, it is possible to more reliably prevent the load acting on the raised bottom portions 86A, 86B from being transmitted to the pair of side plates 22A, 22B and causing deformation of the pair of side plates 22A, 22B.

[0068] As in the case of an eaves gutter 90 of a sixth modified example shown in FIG. 16, instead of the pair of raised bottom portions 23A, 23B of the eaves gutter 20, a pair of raised bottom portions 91A, 91B may be provided. The raised bottom portions 91A, 91B are provided on the pair of side plates 22A, 22B. The raised bottom portions 91A, 91B extend from the middle of the side plates 22A, 22B in the thickness direction Z toward the inside of the eaves gutter 90 along the width direction Y. The raised bottom portions 91A, 91B are spaced apart from each other. In the eaves gutter 90 of the sixth modified example, the portion 91aA of the raised bottom portion 91A that is farthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of one side Z1 of the raised bottom portion 91A in the thickness direction Z. The distance L12 in the thickness direction Z between the portion 91aA and the bottom plate 21 is equal to or greater than the first threshold value H1.

[0069] As in the case of an eaves gutter 95 of a seventh modified example shown in FIG. 17, a bottom raising portion 96 may be provided instead of the pair of bottom raising portions 23A, 23B of the eaves gutter 20. The raised bottom portion 96 is provided on a pair of side plates 22A, 22B. The raised bottom portion 96 extends from the middle of the side plate 22A in the thickness direction Z to the side plate 22B along the width direction Y. In the eaves gutter 95 of this seventh modified example, the portion 96a of the raised bottom portion 96 that is furthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of one side Z1 of the raised bottom portion 96 in the thickness direction Z. A distance L14 in the thickness direction Z between the portion 96a and the bottom plate 21 is equal to or greater than the first threshold value H1.

[0070] As in an eaves gutter 100 of an eighth modified example shown in FIG. 18, a bottom raising portion 101 may be provided instead of the pair of bottom raising portions 23A, 23B of the eaves gutter 20. The bottom-raising portion 101 includes a top plate piece 102 and two side plate pieces 103A and 103B. The side plate pieces 103A and 103B extend from the bottom plate 21 toward one side Z1 in the thickness direction Z. The lengths of the side plate pieces 103A and 103B in the thickness direction Z are approximately the same. The side plate pieces 103A and 103B are arranged at an interval from each other in the width direction Y. The top plate piece 102 is disposed on one side Z1 of the bottom plate 21 in the thickness direction Z and at a position spaced apart from the bottom plate 21. The top plate piece 102 extends along the bottom plate 21 between the side plate 22A and the side plate 22B. The top plate piece 102 is not in contact with the side plates 22A, 22B. A gap is formed between the top plate piece 102 and the side plates 22A, 22B. The top plate piece 102 connects the ends of the two side plate pieces on one side Z1 in the thickness direction Z. A recess 104 is formed in the portion of the bottom-raised portion 101 surrounded by the top plate piece 102 and the two side plate pieces 103A, 103B. In the eaves gutter 100 of this eighth modified example, the portion 102a of the bottom-raised portion 101 that is furthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of one side Z1 of the top plate piece 102 in the thickness direction Z. This portion 102a is the outer surface of the top plate piece 102 opposite the bottom plate 21, and is flat. A distance L16 in the thickness direction Z between the portion 102a and the bottom plate 21 is equal to or greater than the first threshold value H1. The bottom raising portion may include three or more side plate pieces.

[0071] The eaves gutter 60 of the first modified example to the eaves gutter 100 of the eighth modified example can also achieve the same effects as the eaves gutter 20 of this embodiment. Additionally, in the eaves gutter 100 of the eighth modified example, a recess 104 is formed in the portion of the raised bottom portion 101 surrounded by the top plate piece 102 and the two side plate pieces 103A, 103B, and even if the raised bottom portion has the same outer shape, the mass of the raised bottom portion 101 can be reduced. Furthermore, because the outer surface (portion 102a) of the top plate piece 102 opposite the bottom plate 21 is flat, when multiple eaves gutters 100 are stacked in the thickness direction Z, the eaves gutter 100a adjacent to one side Z1 in the thickness direction Z to the eaves gutter 100 having this top plate piece 102 can be stably supported.

[0072] As shown in Fig. 18, when the eaves gutter 100 of the eighth modified example is stacked in the thickness direction Z, a gap S1 is formed between each eaves gutter 100 and the eaves gutter 100a adjacent to the eaves gutter 100 on one side Z1 in the thickness direction Z. It is preferable that the gap S1 is not formed. However, for example, when the eaves gutter 100 is formed by extrusion molding, the gap S1 is formed due to molding accuracy. Therefore, for example, as shown in Figure 31, if multiple eaves gutters 10 arranged in a stacked manner in the thickness direction Z are biased to the other side Y2 in the width direction Y, there is a risk that the multiple eaves gutters 100 will fall over or that the side panel 22B on the other side Y2 in the width direction Y of the eaves gutters 100 will be deformed.

[0073] The eaves gutter 150 of the tenth modified example shown in Figure 32 has third protrusions 151A, 151B in addition to the respective components of the eaves gutter 100 of the eighth modified example. In the eaves gutter 150, the third protrusion 151A is provided at the end of one side Z1 in the thickness direction Z of the side panel 22A. The third protrusion 151A protrudes toward the inside of the eaves gutter 150. The protruding length of the third protrusion 151A is approximately 0.1 mm to 5 mm, and preferably 0.1 to 1 mm. The same applies to the third protrusion 151B. Here, the eaves gutter 150 arranged on one side Z1 in the thickness direction Z with respect to the eaves gutter 150 is referred to as the second eaves gutter 150a. It is preferable that, with the bottom plate 21 of the second eaves gutter 150a in contact with the raised bottom portion 101 of the eaves gutter 150, the side plate 22A of the second eaves gutter 150a in contact with the third convex portion 151A of the eaves gutter 150, and the side plate 22B of the second eaves gutter 150a in contact with the third convex portion 151B of the eaves gutter 150. By configuring the eaves gutters 150 in the manner of the tenth modified example, it is possible to prevent a plurality of eaves gutters 150 from being stacked in the thickness direction Z while being biased in the width direction Y.

[0074] 33, the third protrusion 151A may be provided in the middle of the side plate 22A in the thickness direction Z and protrude outward from the eaves gutter 155. The same applies to the third protrusion 151B. Here, the eaves gutter 155 arranged on one side Z1 in the thickness direction Z with respect to the eaves gutter 155 is referred to as the second eaves gutter 155a. It is preferable that, with the bottom plate 21 of the second eaves gutter 155a in contact with the bottom raised portion 101 of the eaves gutter 155, the third convex portion 151A of the second eaves gutter 155a in contact with the side plate 22A of the eaves gutter 155, and the third convex portion 151B of the second eaves gutter 155a in contact with the side plate 22B of the eaves gutter 155.

[0075] As in the eaves gutter 160 of the twelfth modified example shown in FIG. 34, the eaves gutter 100 of the eighth modified example may be provided with the side plates 81A, 81B instead of the side plates 22A, 22B. Here, the eaves gutter 160 arranged on top of one side Z1 in the thickness direction Z with respect to the eaves gutter 160 is referred to as the second eaves gutter 160a. It is preferable that, with the bottom plate 21 of the second eaves gutter 160a in contact with the bottom raised portion 101 of the eaves gutter 160, the second side plate piece 83A of the second eaves gutter 160a in contact with the second side plate piece 83A of the eaves gutter 160, and the second side plate piece 83B of the second eaves gutter 160a in contact with the second side plate piece 83B of the eaves gutter 160. 34 is configured as a plate formed by joining a first side plate piece 82A and a second side plate piece 83A, each having a linear cross section, at an angle to each other. However, this is not limited to this, and at least one of the first side plate piece 82A and the second side plate piece 83A may be a plate having a curved cross section that curves outward, or the first side plate piece 82A and the second side plate piece 83A may be integrated into a plate having a curved cross section that curves outward. The eaves gutters 155, 160 configured as above can also achieve the same effects as the eaves gutters 150.

[0076] (Second embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 19 to 24. The same components as those in the previous embodiment are designated by the same reference numerals, and a description thereof will be omitted. Only the differences will be described. As shown in Figure 19, the eaves gutter 105 of this embodiment has a raised bottom portion 106 instead of the pair of raised bottom portions 23A, 23B of the eaves gutter 20 of the first embodiment. The raised bottom portion 106 is formed at the connection between the bottom plate 21 and the side plate 22A. The raised bottom portion 106 protrudes further to one side Z1 in the thickness direction Z than the bottom plate 21. The raised bottom portion 106 is formed at the end of one side Y1 in the width direction Y of the bottom plate 21. A recess 106a is formed in the portion of the raised bottom portion 106 on the other side Z2 in the thickness direction Z. The eaves gutter 105 configured as above has a substantially constant thickness regardless of the location, and can therefore be suitably formed by bending a vinyl chloride steel plate or the like.

[0077] As shown in FIG. 20, when multiple eaves gutters 105 are stacked in the thickness direction Z, the eaves gutters 105 adjacent to each other in the thickness direction Z are arranged with the orientation of the eaves gutters 105 in the width direction Y changed. As a result, the bottom plate 21 of the eaves gutter 105 (hereinafter also referred to as eaves gutter 105a) comes into contact with the raised bottom portion 106 of the eaves gutter 105 (hereinafter also referred to as eaves gutter 105b) arranged below this eaves gutter 105 (the other side Z2 in the thickness direction Z). The load acting on the eaves gutter 105a is supported by the bottom plate 21 of the eaves gutter 105a and the raised bottom portion 106 of the eaves gutter 105b. Therefore, it is possible to prevent the pair of side plates 22A, 22B of the eaves gutter 105 from deforming openly or closed relative to each other. As described above, the eaves gutter 105 of this embodiment can improve packing properties.

[0078] The configuration of the eaves gutter 105 of this embodiment can be modified in various ways as described below. As in the eaves gutter 110 of a first modified example shown in Figure 21, a raised bottom portion 111 may be provided instead of the raised bottom portion 106 of the eaves gutter 105. The raised bottom portion 111 is formed on one side Y1 of the bottom plate 21 in the width direction Y so as to be spaced apart from the side plate 22A. The raised bottom portion 111 protrudes further to one side Z1 in the thickness direction Z than the bottom plate 21. A recess 111a is formed in the raised bottom portion 111 on the other side Z2 in the thickness direction Z.

[0079] As shown in Figure 22, when multiple eaves gutters 110 are stacked and arranged in the thickness direction Z, the eaves gutters 110 adjacent to each other in the thickness direction Z are arranged with the orientation of the eaves gutters 110 in the width direction Y changed. As a result, the bottom plate 21 of the eaves gutter 110 (hereinafter also referred to as eaves gutter 110a) comes into contact with the raised bottom portion 111 of the eaves gutter 110 (hereinafter also referred to as eaves gutter 110b) arranged below this eaves gutter 110 (the other side Z2 in the thickness direction Z). The load acting on the eaves gutter 110a is supported by the bottom plate 21 of the eaves gutter 110a and the raised bottom portion 111 of the eaves gutter 111b.

[0080] As in the eaves gutter 115 of the second modified example shown in Figure 23, a bottom raising portion 116 may be provided instead of the bottom raising portion 106 of the eaves gutter 105. The bottom raising portion 116 includes a first bottom raising piece 117 and a second bottom raising piece 118. The first bottom-raising piece 117 is formed at the connection between the bottom plate 21 and the side plate 22A, similar to the bottom-raising portion 106. The first bottom-raising piece 117 protrudes further toward one side Z1 in the thickness direction Z than the bottom plate 21. The first bottom-raising piece 117 is formed at the end of the bottom plate 21 on one side Y1 in the width direction Y. The portion 117a of the first bottom-raising piece 117 that is farthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of one side Z1 in the thickness direction Z of the first bottom-raising piece 117. Here, the distance in the thickness direction Z between the portion 117a and the bottom plate 21 is defined as L21.

[0081] The second bottom-raising piece 118 is formed so as to be continuous with the first bottom-raising piece 117 on the other side Y2 in the width direction Y. The second bottom-raising piece 118 protrudes further toward the other side Z2 in the thickness direction Z than the bottom plate 21. The second bottom-raising piece 118 is formed on one side Y1 in the width direction Y of the bottom plate 21. The portion 118a of the second bottom-raising piece 118 that is farthest from the bottom plate 21 in the thickness direction Z is the outer surface located at the end of the other side Z2 in the thickness direction Z of the second bottom-raising piece 118. Here, the distance in the thickness direction Z between the portion 118a and the bottom plate 21 is defined as L22. It is preferable that the distance L21 and the distance L22 are equal to each other, and that the distances L21 and L22 are equal to or greater than the first threshold value H1.

[0082] As shown in Figure 24, when multiple eaves gutters 115 are stacked and arranged in the thickness direction Z, the eaves gutters 115 adjacent to each other in the thickness direction Z are arranged with the orientation of the eaves gutters 115 in the width direction Y changed. As a result, the bottom plate 21 of the eaves gutter 115 (hereinafter also referred to as eaves gutter 115a) comes into contact with the first bottom-raising piece 117 of the eaves gutter 115 (hereinafter also referred to as eaves gutter 115b) arranged below this eaves gutter 115 (the other side Z2 in the thickness direction Z). The second bottom-raising piece 118 of the eaves gutter 115a comes into contact with the bottom plate 21 of the eaves gutter 115b. In this way, the load acting on the eaves gutter 115a is supported by the first bottom raising piece 117 and the bottom plate 21 of the eaves gutter 115b.

[0083] (Third embodiment) Next, a third embodiment of the present invention will be described with reference to FIGS. 25 and 26. The same components as those in the previous embodiment are designated by the same reference numerals, and a description thereof will be omitted. Only the differences will be described. As shown in FIGS. 25 and 26, the eaves gutter system 125 of this embodiment includes a plurality of eaves gutters 126 and a bottom raising member 127. The eaves gutters 126 include the bottom plate 21 and the pair of side plates 22A, 22B. The length L1 in the width direction Y of the outer surface 21b on one side Z1 in the thickness direction Z of the bottom plate 21 is 120 mm or more. The multiple eaves gutters 126 are arranged overlapping each other in the thickness direction Z.

[0084] The bottom raising member 127 includes a top plate piece 130 and a pair of side plate pieces 131A and 131B. The top plate piece 130 extends in the width direction Y between the side plates 22A and 22B. The top plate piece 130 is not in contact with the side plates 22A and 22B. A gap is formed between the top plate piece 130 and the side plates 22A and 22B. The side plate piece 131A extends from an end of the top plate piece 130 on one side Y1 in the width direction Y toward the other side Z2 in the thickness direction Z. The bottom raising member 127 is disposed between adjacent eaves gutters 126 in the thickness direction Z among the multiple eaves gutters 126. The bottom raising member 127 is disposed so as to contact the bottom plates 21 of a pair of eaves gutters 126 adjacent in the thickness direction Z. The length L25 of the bottom-raising member 127 in the thickness direction Z is preferably equal to or greater than the second threshold value H2 mm according to the formula (15).

[0085]

number

[0086] As shown in FIG. 26, a plurality of bottom raising members 127 may be arranged in the longitudinal direction X of the eaves gutter 126, or only one may be arranged.

[0087] As described above, according to the eaves gutter system 125 of this embodiment, the length L1 of the outer surface 21b of the bottom plate 21 is 120 mm or more, so the eaves gutter 126 can be used as a large eaves gutter for use in logistics warehouses, etc. When packaging multiple eaves gutters 126, the multiple eaves gutters 126 are stacked in the thickness direction Z. At this time, a bottom-raising member 127 is placed between the bottom plates 21 of a pair of eaves gutters 126 adjacent in the thickness direction Z. The bottom-raising member 127 contacts each of the bottom plates 21 of the pair of eaves gutters 126 adjacent in the thickness direction Z. Therefore, for example, when the thickness direction Z is arranged along the up-down direction, the load due to gravity acting on one of the pair of eaves gutters 126 adjacent in the thickness direction Z can be supported by the bottom plates 21 and bottom-raising member 127 of the pair of eaves gutters 126 that are in contact with each other. Therefore, the load acting between one side plate 22A, 22B and the other side plate 22A, 22B of a pair of eaves gutters 126 adjacent in the thickness direction Z is suppressed, and when multiple eaves gutters 126 are stacked in the thickness direction Z, the pair of side plates 22A, 22B of the eaves gutters 126 can be prevented from deforming openly or closed relative to each other. This improves packing properties when a plurality of eaves gutters 126 stacked in the thickness direction Z are packed to form an eaves gutter package.

[0088] Furthermore, the length L25 is equal to or greater than the second threshold value H2 mm. Therefore, when multiple eaves gutters 126 are arranged one on top of the other in the thickness direction Z and the bottom plates 21 of a pair of eaves gutters 126 are brought into contact with each other via the bottom-raising members 127, the load acting between one side plate 22A, 22B and the other side plate 22A, 22B of a pair of eaves gutters 126 adjacent in the thickness direction Z can be more reliably suppressed.

[0089] Although the first to third 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 to third embodiments, the eaves gutters do not have to be formed symmetrically in the width direction Y. The eaves gutter may be provided with designs such as graining, hairlines, knurling, etc. [Explanation of symbols]

[0090] 2,2a Eaves gutter packaging 20,60,65,75,80,85,90,100,105,110,115,126,140,150,155,160 Eaves gutter 21 Bottom plate 21c First recess (first engagement portion) 22A, 22B, 81A, 81B side plate 23A, 23B, 76A, 76B, 86A, 86B, 91A, 91B, 96, 101, 106, 111, 116 Bottom raised part 26aA,76aA,86aA,91aA,96a,102a part 26bA First protrusion (second engagement portion) 28A, 28B, 104, 106a, 111a recesses 45 Kraft paper (sheet) 66A,66B Protrusion 102 Top plate piece 103A,103B Side plate piece 125 Eaves Gutter System 127 Bottom raising member 141 Uneven part L1, L25 length X Longitudinal direction Y width direction Z thickness direction Z1 One side Z2 other side

Claims

1. The base plate and A pair of side plates rise from both ends in the width direction of the base plate toward one side in the thickness direction of the base plate, The raised portion provided on the bottom plate, Equipped with a gutter, The aforementioned raised base portion is A first piece extending from the side plate in the width direction of the bottom plate, The bottom plate has a second piece extending in the thickness direction of the bottom plate, A gutter in which the distance in the thickness direction between the portion of the raised section that is furthest from the bottom plate in the thickness direction and the bottom plate is 1 mm or more, which is the first threshold H according to equation (1). However, the thickness of the bottom plate is t mm, and the angle between the inner outer surface of the pair of side plates and the outer surface of the bottom plate is θ°. [Math 1]

2. Each of the pair of side plates is provided with a pair of protrusions that extend from the pair of side plates, The gutter according to claim 1, wherein the length of the projection in the thickness direction is less than or equal to the first threshold H1.

3. The aforementioned raised base portion is At least two side plate pieces extending from the bottom plate toward one side in the thickness direction, A top plate piece is provided that connects the ends of at least two side plate pieces in the thickness direction, and extends along the bottom plate, Equipped with, At least a portion of the outer surface of the top plate piece opposite to the bottom plate is flat. The gutter according to claim 1 or 2.

4. Each of the pair of side plates is provided with a pair of protrusions that extend from the pair of side plates, The length in the thickness direction of each of the pair of protrusions is longer than the length in the thickness direction of the base plate. The gutter according to any one of claims 1 to 3.

5. The gutter according to any one of claims 1 to 4, wherein an internal space or recess is formed in the raised portion.

6. The gutter according to any one of claims 1 to 5, wherein the bottom plate and the side plate are provided with a core material made of resin or metal.

7. A gutter according to any one of claims 1 to 6, A rain gutter system comprising a downpipe connected to the aforementioned eaves gutter.

8. A building equipped with the rain gutter system described in claim 7.

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