Gutter repair materials

Abstract

A valley gutter repair member (20) for repairing a valley gutter (12) provided at a valley part (62) formed by two adjacent roofs (60, 61), and which drains rainwater. The valley gutter repair member (20) includes a sheet-like base material and a resin layer that covers at least one of opposite surfaces of the base material in the thickness direction. The base material has a flexural rigidity performance in the range of 0.05 to 0.13 (Pa×m4).

Description

[Technical field]

[0001] The present disclosure relates to a valley gutter repair member for repairing a valley gutter that is provided in a valley formed by two adjacent roofs and drains rainwater. [Background technology]

[0002] Conventionally, there has been known a valley gutter that is provided in a valley formed by two adjacent roofs to drain rainwater, as described in Patent Document 1. The valley gutter in Patent Document 1 is formed by bending a valley gutter material with a band-shaped sealing sheet affixed to the longitudinal end of the upper surface of a band-shaped plate made of a metal core material with the surface coated with soft resin. The end of the valley gutter with the band-shaped sealing sheet affixed is fixed to the part of the other valley gutter that does not have a sealing sheet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-31516 A Summary of the Invention [Problem to be solved by the invention]

[0004] Depending on the usage conditions of the valley gutter, deterioration of the valley gutter may occur, and the valley gutter may need to be repaired. This repair has the following issues. Specifically, buildings in which valley gutters are installed are often commercial facilities, and it is particularly desirable to shorten the repair period. On the other hand, valley gutters often have a narrow opening at the top, so it is also desirable to make it easier to carry out the construction work of passing the repair material through the narrow opening and then installing it in the valley gutter in a specified shape after it has passed through the opening. In addition, if the repair material is vulnerable to environmental changes, it will easily deteriorate, and it may become necessary to carry out another repair within a short period of time.

[0005] The object of the present disclosure is to realize a valley gutter repair component that makes it easier to install in a valley gutter, thereby enabling the valley gutter to be repaired in a short period of time and that is resistant to environmental changes. [Means for solving the problem]

[0006] A valley gutter repair member according to one embodiment of the present disclosure is provided in a valley formed by two adjacent roofs and is used to repair a valley gutter that drains rainwater. The valley gutter repair member includes a sheet-like substrate and a resin layer that covers at least one of both surfaces in the thickness direction of the substrate, and the substrate has a bending stiffness of 0.05 to 0.13 (Pa×m 4 ) is a valley gutter repair component that has performance within the range. Effect of the Invention

[0007] According to one embodiment of the valley gutter repair member of the present disclosure, the construction work of installing it in the valley gutter is easier to perform, making it possible to repair the valley gutter in a short period of time and achieving a configuration that is resistant to environmental changes. [Brief description of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view showing a roof structure with a valley gutter provided with a valley gutter repair member according to an embodiment of the present invention. [Diagram 2] 2 is a perspective view showing a part of the valley gutter and the valley gutter repair member in the longitudinal direction taken out from FIG. 1 and partially cut away. FIG. [Diagram 3] FIG. 2A is a schematic diagram showing a comparison of thicknesses of each component of a valley gutter material in an embodiment, and FIG. 2B is a schematic diagram showing a comparison of thicknesses of each component of a valley gutter repair member. [Figure 4] FIG. 13 is a diagram showing the test results in which the flexibility and self-supporting ability of a plurality of gutter repair members having different bending stiffnesses were evaluated. [Diagram 5] FIG. 11 is an enlarged perspective view of a corner portion of a longitudinal end portion of a box shape formed by a valley gutter repair member in another embodiment. [Figure 6] FIG. 11 is a schematic diagram of a longitudinal end of a valley gutter repaired with a valley gutter repair member in another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the valley gutter repair member according to the present disclosure will be described with reference to the drawings. Note that, when multiple embodiments or modified examples are included below, it is assumed from the beginning that new embodiments will be constructed by appropriately combining the characteristic parts of those. The shapes, arrangements, numbers, values, materials, etc. described below are examples for the purpose of explanation, and can be appropriately changed depending on the specifications of the valley gutter repair member. In the following, the same elements are assigned the same symbols in all drawings.

[0010] An embodiment will be described with reference to Figures 1 to 4. Figure 1 is a cross-sectional view showing a roof structure 10 with a valley gutter provided with a valley gutter repair member 20 of an embodiment. Figure 2 is a perspective view showing a longitudinal portion of the valley gutter 12 and the valley gutter repair member 20 taken from Figure 1 and partially cut away. Figure 3 is a schematic diagram (a) showing a comparison of thicknesses of each component of a valley gutter material 50 in an embodiment, and a schematic diagram (b) showing a comparison of thicknesses of each component of the valley gutter repair member 20.

[0011] The roof structure with a valley gutter 10 on which the valley gutter repair member 20 is provided includes, for example, two adjacent roofs 60, 61 and a valley gutter 12 provided in a valley portion 62 formed by the two roofs 60, 61. The roof structure with a valley gutter 10 is provided, for example, on the roof of a factory or the roof above a station platform.

[0012] Each roof 60, 61 is, for example, a half-height roof or a corrugated slate, and is supported by a support 63 made of a steel band or the like. The flange 15 of the valley gutter 12, or the flange of the valley gutter and the valley gutter support (not shown), is sandwiched between the support 63 and the roof 60, 61. In this way, the valley gutter 12 is supported below the opening between the eaves of the two roofs 60, 61.

[0013] The valley gutter 12 extends along the tip edges of the eaves of the roofs 60, 61, and has a bottom wall 13, side walls 14 erected upward from both ends of the bottom wall 13 in the width direction, and a flange 15 extending diagonally upward and outward from the upper ends of the side walls 14. The valley gutter 12 collects rainwater flowing in from the eaves of the two roofs 60, 61, and drains the water downward through a downspout (not shown) from drainage outlets (not shown) provided at one or more positions in the longitudinal direction. Hereinafter, the longitudinal direction of the valley gutter 12 will be referred to as the front-to-rear direction, and the lateral direction perpendicular to the front-to-rear direction of the valley gutter 12 will be referred to as the width direction.

[0014] As shown in Fig. 3(a), the trough material 50 forming the trough 12 includes a sheet-like core material 51 formed of a steel plate, and resin layers 52, 53 covering both sides of the core material 51 in the thickness direction. The trough 12 is formed by cutting out a predetermined length from the trough material 50 wound in a coil shape and bending it. As a result, in the state in which the trough 12 is formed as shown in Fig. 1, the resin layers 52, 53 are provided on both the upper and lower sides of the core material 51 in the middle part of the trough 12 in the width direction. The thicknesses d1, d2, d3 of the core material 51 and the resin layers 52, 53 may be approximately the same.

[0015] As shown in FIG. 1, the valley gutter repair member 20 is a member for repairing the valley gutter 12, and is provided inside the valley gutter 12 and fixed so as to cover a part or the whole of the inner surface of the valley gutter 12 when in use. The valley gutter repair member 20 is wound in a coil shape, and a required length is cut out at the site where the repair is to be performed. The cut valley gutter repair member 20 is bent in advance into a shape close to a shape that fits the inner surface of the valley gutter 12, which is a shape consisting of the bottom wall 13 and two side walls 14 of the inner surface of the valley gutter 12. Then, the valley gutter repair member 20 is elastically bent and pressed from the upper side of the opening 64 between the eaves of the two roofs 60, 61 to the lower side of the opening 64, and is fixed in a state overlapping the inner surface of the valley gutter 12 so as to cover a part or the whole of the exposed part of the inner surface of the valley gutter 12 along the inner surface shape of the valley gutter 12. When fitted inside the valley gutter 12, the valley gutter repair member 20 is formed into a groove shape having a bottom wall 21 and side walls 22 erected upward from both ends of the bottom wall 21 in the width direction. The valley gutter repair member 20 and the valley gutter 12 are stacked and fixed together with one or more screws.

[0016] Next, the material configuration of the valley gutter repair member 20 will be described. As shown in FIG. 3(b), the valley gutter repair member 20 is composed of a sheet-like base material 24 made of a metal plate such as a steel plate, and resin layers 25, 26 covering both sides of the base material 24 in the thickness direction. Such resin layers 25, 26 are provided so as to be laminated almost entirely on both sides of the base material 24 when the valley gutter repair member 20 is in a flat plate state before bending processing. When the valley gutter repair member 20 is formed into a groove shape as shown in FIG. 1, the resin layers 25, 26 are provided on both the upper and lower sides of the base material 24 in the width direction intermediate portion of the valley gutter repair member 20. The thickness d4 of the base material 24 is smaller than the thickness d1 of the core material 51 forming the valley gutter material 50, for example. For example, the thickness d4 of the base material 24 is 1 / 2 or less of the thickness d1 of the core material 51. On the other hand, the thicknesses d5, d6 of the resin layers 25, 26 of the valley gutter repair member 20 can be made substantially the same as the thicknesses d3, d4 of the resin layers 52, 53 of the valley gutter material 50.

[0017] In addition, the base material 24 of the valley gutter repair member 20 has a bending stiffness of 0.05 to 0.13 (Pa×m) when the base material 24 is in a flat plate shape before bending and has a width of 910 mm. 4 ) range. The bending stiffness is determined by the width and thickness of the valley gutter repair member 20 and the Young's modulus based on the material. As a result, the valley gutter repair member 20 is not too hard and can be made highly flexible, making it easier to bend and to bend it into the narrow valley gutter 12. In addition, since the valley gutter repair member 20 can have a moderate degree of self-supporting property, it can maintain the state after bending. Therefore, it is possible to prepare the valley gutter repair member 20 in advance outside the valley gutter 12 in a shape close to the shape it will have after installation, which will be adapted to the valley gutter 12. This makes it easier to pass the valley gutter repair member 20 through the narrow opening 64 at the top of the valley gutter 12 and install it in the valley gutter 12 in a predetermined shape, thereby enabling the valley gutter 12 to be repaired in a short time.

[0018] Furthermore, in the valley gutter repair member 20, both the upper and lower surfaces of the base material 24 are covered with the resin layers 25, 26, so that it is resistant to environmental changes such as temperature changes, rainwater falling on it, and rainwater flow. This allows easy installation in a small installation space, and it is easy to form the shape of the member in advance to a shape close to the shape after installation, so that workability is improved and repair work of the valley gutter 12 can be completed in a short period of time. For example, if the structure in which the valley gutter 12 is installed is a commercial facility, repair work of the valley gutter 12 can be easily completed only at night when the business of the facility is stopped, without removing the valley gutter 12, while the valley gutter 12 still functions to some extent.

[0019] FIG. 4 shows the test results in which the flexibility and self-supporting property of the valley gutter repair member 20 was evaluated for a number of valley gutter repair members having different bending stiffness. The test was carried out under the condition that the width of the base material 24 of the valley gutter repair member 20 was 910 mm. The bending stiffness of the base material 24 was set to 0.04 (Pa×m 4 )~0.15(Pa×m 4 ) were used to evaluate the flexibility and self-supporting properties of a plurality of valley gutter repair members 20 that were variously different. The configuration and dimensions of the resin layers 25, 26 of the valley gutter repair members 20 were all the same in the tests. In the test results in FIG. 4, a circle in the "flexibility" column indicates that the valley gutter repair member 20 has sufficient flexibility for practical use in terms of ease of bending in order to bend and form the valley gutter repair member 20 into the shape after installation, a triangle indicates that the valley gutter repair member 20 has sufficient flexibility for practical use, but is less flexible than the circle, and an x ​​indicates that the valley gutter repair member 20 does not have sufficient flexibility for practical use in order to bend and form the valley gutter repair member 20 into the shape after installation. In FIG. 4, a circle in the "self-supporting properties" column indicates that the valley gutter repair member 20 has sufficient shape-maintaining function for practical use in order to maintain the shape after bending and forming the valley gutter repair member 20 into the shape after installation, that is, that the self-supporting properties are sufficient, a triangle indicates that the valley gutter repair member 20 has sufficient self-supporting properties for practical use, but is less self-supporting than the circle, and an x ​​indicates that the valley gutter repair member 20 does not have sufficient self-supporting properties for practical use in order to maintain the shape after bending and forming the valley gutter repair member 20 into the shape after installation.

[0020] From the test results of FIG. 4, it can be seen that the bending stiffness of the substrate 24 within the range of the embodiment is 0.05 to 0.13 (Pa×m 4In the case of ), the flexibility and self-supporting property of the valley gutter repair member 20 were sufficient for practical use, so the effect of the embodiment was confirmed.

[0021] Furthermore, according to the configuration of this example, by using the same material for the core material 51 of the valley gutter 12 and the base material 24 of the valley gutter repair member 20, it is possible to use the same sealing material (sealant) for both the valley gutter 12 and the valley gutter repair member 20 at the joints between the ends of the valley gutter 12 and the valley gutter repair member 20. This makes it possible to prevent harmful reactions caused by contact between sealing materials made of different materials.

[0022] FIG. 5 is an enlarged perspective view of a corner of a longitudinal end of a box shape formed by a gutter repair member 20 in another embodiment. In the configuration of this example, a box shape is formed by the gutter repair member 20 inside the gutter 12 (FIG. 1, etc.). When forming the longitudinal end of the box shape, the excess parts at the corners between the longitudinal end and the widthwise end are overlapped in a triangular shape on the outside, and the excess triangular parts are further overlapped on the outer surface of the end wall of the longitudinal end to form an eight-fold fold portion 28. Even in this case, similar to the configuration of FIGS. 1 to 3, when the width of the base material 24 of the gutter repair member 20 is 910 mm, the bending rigidity is 0.05 to 0.13 (Pa×m 4 ), it is easy to crease the valley gutter repair member 20 into a box shape before installing it in the valley gutter 12, and to form the box shape. This makes it easy to install the valley gutter repair member 20 inside the valley gutter 12. Other configurations and functions of this example are similar to those of the configurations in Figs. 1 to 3.

[0023] FIG. 6 is a schematic diagram of the longitudinal end of the valley gutter 12 repaired with the valley gutter repair member 20 in another embodiment. In the configuration of this example, the valley gutter repair member 20 is covered so as to protrude outward at the longitudinal end of the valley gutter 12, forming a so-called end overhang, thereby preventing water from entering between the longitudinal end of the valley gutter 12 and the longitudinal end of the valley gutter repair member 20. Even in this case, as in the configuration of FIGS. 1 to 3, the bending rigidity of the base material 24 of the valley gutter repair member 20 is appropriately regulated, so that the valley gutter repair member 20 is easy to bend even in a narrow installation location, and installation work, including the formation of the overhang, is easy to perform. In addition, this configuration prevents wind from entering between the longitudinal end of the valley gutter 12 and the longitudinal end of the valley gutter repair member 20, causing the valley gutter repair member 20 to turn up. In Fig. 6, the valley gutter 12 and the valley gutter repair member 20 are shown separated with a gap between them, but in reality, they are stacked on top of each other with no gap between them. In this example, the other configurations and functions are the same as those in Figs. 1 to 3.

[0024] In the above embodiments, the resin layers 25, 26 are provided on both thickness-wise surfaces of the base material 24 of the valley gutter repair member 20. However, the present disclosure is not limited to this, and a resin layer may be provided on only one of both thickness-wise surfaces of the base material 24 of the valley gutter repair member 20. For example, when the valley gutter repair member 20 is attached to the valley gutter 12 so as to cover the upper surface of the valley gutter 12, a resin layer may be provided on only one thickness-wise surface of the valley gutter repair member 20, which includes the upper surface of the base material 24. Also, when the valley gutter repair member 20 is attached to the valley gutter 12 so as to cover the lower surface of the valley gutter 12, a resin layer may be provided on only the other thickness-wise surface of the valley gutter repair member 20, which includes the lower surface of the base material 24.

[0025] Also, although not shown in the figures, in another configuration, the base material of the valley gutter repair member 20 can be subjected to a surface treatment such as a resin coating, so that the base material can have a special function such as anti-rust function. Also, in another configuration, the base material of the valley gutter repair member 20 can be subjected to a punching process, in which a large number of holes are drilled. This can reduce the weight of the valley gutter repair member 20. Also, since a resin layer is provided on at least one surface in the thickness direction of the base material 24, it is possible to prevent rainwater from passing through the valley gutter repair member 20 in the thickness direction.

[0026] As another alternative configuration, when a hole or the like occurs in part of the valley gutter 12, the valley gutter repair member 20 is formed into a flat plate-like structure to cover the portion and then a groove-shaped valley gutter repair member 20 is layered on top of it to cover almost the entire inner surface of the valley gutter 12. Even in this case, as in the configuration of Figures 1 to 3, the bending rigidity of the base material 24 of the valley gutter repair member 20 is appropriately regulated, making it possible to prevent unevenness from occurring in the portion where the valley gutter repair member 20 is layered on the flat plate-shaped valley gutter repair member.

[0027] As another configuration example, even if the upper surface of the bottom wall of the valley gutter 12 has a complex shape such as a curved portion with an R shape, the base material 24 of the valley gutter repair member 20 maintains appropriate rigidity while making it easy for the valley gutter repair member 20 to conform to the bottom shape of the valley gutter 12. This makes it difficult for gaps to form between the valley gutter repair member 20 and the valley gutter 12, providing a structure that is less susceptible to water intrusion. [Explanation of symbols]

[0028] 10 roof structure with valley gutter, 12 valley gutter, 13 bottom wall, 14 side wall, 15 flange, 20 valley gutter repair part, 21 bottom wall, 22 side wall, 24 base material, 25, 26 resin layer, 28 eight-fold portion, 50 valley gutter material, 51 core material, 52, 53 resin layer, 60, 61 roof, 62 valley portion, 63 receiving device, 64 opening.

Claims

1. A valley gutter repair member for repairing a valley gutter that is provided in a valley formed by two adjacent roofs and drains rainwater, A sheet-like substrate; A resin layer covering at least one of both surfaces in the thickness direction of the base material, The substrate has a bending stiffness of 0.05 to 0.13 (Pa×m ４ ) performance within the range of Valley gutter repair parts.

2. The valley gutter repair member according to claim 1, The substrate is surface-treated. Valley gutter repair parts.

3. The gutter repair member according to claim 1 or 2, The substrate is punched. Valley gutter repair parts.

4. The valley gutter repair member according to any one of claims 1 to 3, The substrate is a steel plate. Valley gutter repair parts.

Images