Arrangement body fixing structure and arrangement body fixing member

Abstract

To provide an arrangement body fixing structure which is excellent in load resistance while imparting high waterproofness to a floor part, and an arrangement body fixing member which achieves such the arrangement body fixing structure.SOLUTION: An arrangement body fixing structure is a structure for fixing an arrangement body to a floor part, includes a waterproof sheet which is arranged so as to cover the floor part and is composed of a soft resin material, a reinforcement plate which is arranged between the waterproof sheet and the floor part, has a screw hole to which a screw is inserted, and is fixed to the floor part by the screw, and an arrangement body fixture which is arranged on a side opposite to the reinforcement plate of the waterproof sheet, to which the arrangement body is fixed, wherein the reinforcement plate and the arrangement body fixture each has rigidity higher than that of the waterproof sheet, and the first joint part of the waterproof sheet and the reinforcement plate, having rigidity higher than that of the waterproof sheet, and a second joint part of the waterproof sheet and the arrangement body fixture are joined to each other by bonding or welding, respectively.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an arrangement body fixing structure and an arrangement body fixing member. [Background technology]

[0002] A solar panel unit or other such mounting structure may be installed on a flat roof. However, since flat roofs are often waterproofed using a resin waterproof sheet, it is necessary to install the mounting structure without damaging the waterproofing.

[0003] Therefore, Patent Document 1 discloses a solar cell module assembly having a solar cell module and a first support that supports the solar cell module on an installation surface. In this solar cell module assembly, when the installation surface is a waterproof sheet, the first support is fixed to the waterproof sheet without drilling holes through the waterproof sheet. This allows the solar cell module to be installed without compromising the waterproofness of the waterproof sheet.

[0004] However, in recent years, solar cell modules have become lighter. As they become lighter, they are more likely to be blown up by the wind. When this happens, an upward tensile load is applied to the adhesive joint between the first support and the waterproof sheet, raising concerns that the waterproof sheet may be damaged. Furthermore, the tensile load makes the waterproof sheet more likely to peel off from the base. When the waterproof sheet peels off from the base, stress concentration due to the difference in thermal expansion between the waterproof sheet and the first support becomes apparent, making the waterproof sheet more susceptible to cracks. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-151995 Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide an arranging body fixing structure that provides a high level of waterproofing to a floor portion while having excellent load-bearing capacity, and an arranging body fixing member that realizes such an arranging body fixing structure. [Means for solving the problem]

[0007] These objects can be achieved by the present invention as set forth in (1) to (15) below. (1) A structure for fixing an arrangement body to a floor part, A waterproof sheet arranged to cover the floor portion and made of a soft resin material; A reinforcing plate disposed between the waterproof sheet and the floor, having screw holes through which screws are inserted, and fixed to the floor by the screws; an arrangement body fixing device that is arranged on the opposite side of the waterproof sheet from the reinforcing plate and that fixes the arrangement body; Equipped with the reinforcing plate and the aligner fixing tool each have greater rigidity than the waterproof sheet; An arrangement fixing structure characterized in that a first joint between the waterproof sheet and the reinforcing plate, and a second joint between the waterproof sheet and the arrangement fixing device are each joined by adhesive or welding.

[0008] (2) The arrangement fixing structure according to (1) above, wherein the area of ​​the second joint portion is smaller than the area of ​​the first joint portion.

[0009] (3) The arrangement fixing structure according to (1) or (2) above, wherein the first joint portion is set closer to the center of the reinforcing plate than the screw hole.

[0010] (4) An arrangement fixing structure as described in (3) above, in which the waterproof sheet is not joined to an outer portion located outside the reinforcing plate relative to the first joint portion.

[0011] (5) An arrangement fixing structure as described in (4) above, comprising an insulating tape arranged between the outer portion and the waterproof sheet.

[0012] (6) The aligner fixing structure according to any one of (1) to (5) above, wherein the reinforcing plate has a metal plate and a resin coating covering the metal plate.

[0013] (7) The aligner fixing structure according to any one of (1) to (6) above, wherein the aligner fixing tool has a metal base and a resin coating that covers the metal base.

[0014] (8) The structure for fixing an arranging member according to (6) or (7) above, wherein the resin coating and the waterproof sheet contain the same resin.

[0015] (9) The aligner fixing structure according to any one of (1) to (5) above, wherein the reinforcing plate contains a hard resin material.

[0016] (10) The aligner fixing structure according to any one of (1) to (6) above, wherein the aligner fixing tool contains a hard resin material.

[0017] (11) The aligner fixing structure according to (9) or (10) above, wherein the main component of the hard resin material and the main component of the soft resin material are the same.

[0018] (12) An arrangement fixing structure according to any one of (1) to (11) above, wherein the first joint portion and the second joint portion are joined by welding materials containing vinyl chloride resin together.

[0019] (13) The arrangement fixing structure according to any one of (1) to (12) above, wherein the arrangement is a solar panel unit.

[0020] (14) A member used in the arrangement member fixing structure according to any one of (1) to (13) above, The waterproof sheet; the reinforcing plate; Equipped with An arrangement member fixing member, wherein the first joint portion is joined by adhesive or welding.

[0021] (15) The arrangement body fixing device is provided, The arrangement member fixing member according to (14) above, wherein the second joint portion is joined by adhesion or welding. [Effects of the Invention]

[0022] According to the present invention, an arrangement member fixing structure that provides a high level of waterproofing to a floor portion and has excellent load-bearing capacity can be obtained. Furthermore, according to the present invention, an arrangement member fixing member that realizes the arrangement member fixing structure described above can be obtained. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a perspective view showing a solar panel unit fixed to a floor portion of a frame via an arrangement body fixing structure according to an embodiment. FIG. [Figure 2] 2 is a partially enlarged cross-sectional view of the arrangement member fixing structure shown in FIG. 1. FIG. [Figure 3] FIG. 3 is a cross-sectional view showing the reinforcing plate of FIG. 2. [Figure 4] FIG. 3 is a cross-sectional view showing the arrangement body fixture of FIG. 2. [Figure 5] 3 is a schematic diagram for explaining a method for replacing the arrangement body fixing structure shown in FIG. 2. FIG. [Figure 6] FIG. 10 is a partially enlarged cross-sectional view showing an arrangement fixing structure according to a modified example of the first embodiment. [Figure 7] FIG. 10 is a partially enlarged cross-sectional view showing an arrangement fixing structure according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The arrangement and arrangement member of the present invention will be described in detail below with reference to preferred embodiments shown in the accompanying drawings.

[0025] 1. First embodiment First, a solar panel unit will be described as an example of an arrangement body that is fixed to a frame by the arrangement body fixing structure according to the first embodiment.

[0026] 1.1.Solar panel unit Fig. 1 is a perspective view showing a solar panel unit 8 fixed to a floor portion 90 of a frame 9 via an aligner fixing structure 1 according to an embodiment. Fig. 2 is a partially enlarged cross-sectional view of the aligner fixing structure 1 shown in Fig. 1. Fig. 3 is a cross-sectional view showing a reinforcing plate 24 of Fig. 2. Fig. 4 is a cross-sectional view showing an aligner fixture 28 of Fig. 2.

[0027] In each drawing of the present application, the X-axis, Y-axis, and Z-axis are set as three mutually orthogonal axes. Each axis is represented by an arrow, with the tip of the arrow being "plus" and the base of the arrow being "minus." In the following description, for example, the "X-axis direction" includes both the positive and negative directions of the X-axis. The same applies to the Y-axis and Z-axis directions. The Z-axis is parallel to the vertical axis, with the positive side of the Z-axis being "up" and the negative side of the Z-axis being "down." In addition, for the sake of convenience, the dimensional ratios of each part in each drawing are different from the actual ratios.

[0028] 1 is the rooftop of a building. However, the structure 9 is not limited to this and may be a balcony or roof of a building.

[0029] 1 is composed of, for example, a laminate of an RC slab 91 (reinforced concrete slab) and a heat insulating panel 92. Note that this laminate may be replaced with flat plates such as autoclaved lightweight aerated concrete (ALC) panels, extruded cement boards (ECP), sheathing boards, metal plates, sandwich panels, or the like, or a laminate of such flat plates and heat insulating panels.

[0030] As shown in Fig. 1, the solar panel unit 8 has a flat plate shape and is arranged so that its main surface is approximately parallel to the floor 90. Furthermore, a plurality of solar panel units 8 are usually arranged on the floor 90 with as few gaps as possible, for example, in a matrix. Fig. 1 shows one of these solar panel units 8. The solar panel unit 8 shown in Fig. 1 has both ends in the Y-axis direction fixed to the floor 90 via an aligner fixing structure 1.

[0031] The arrangement body fixed to the floor portion 90 by the arrangement body fixing structure 1 is not limited to the solar panel unit 8, and may be any arrangement body.

[0032] 1.2. Arrangement fixing structure Next, the arrangement unit fixing structure 1 according to the first embodiment will be described.

[0033] The aligner fixing structure 1 shown in Figure 2 is interposed between the solar panel unit 8 and the floor 90, and fixes the solar panel unit 8 to the floor 90. As will be described later, the aligner fixing structure 1 uses highly rigid members and utilizes adhesion or welding to firmly fix the solar panel unit 8 while applying waterproofing using a waterproof sheet 22. This makes it possible to realize an aligner fixing structure 1 that is highly waterproof for the floor 90 and has excellent load-bearing capacity.

[0034] The locating body fixing structure 1 shown in FIG. 2 includes a waterproof sheet 22, a reinforcing plate 24, an insulating tape 26, and an locating body fixing tool 28.

[0035] In addition, the aligner fixing structure 1 shown in Figure 2 includes screws 4 that fix the reinforcing plate 24 to the floor portion 90, connecting members 31 that connect the solar panel unit 8 and the aligner fixing device 28, fastening members 33 that fasten the connecting members 31 and the aligner fixing device 28 together, a pressing plate 32 that presses the solar panel unit 8, and fastening members 34 that fasten the connecting members 31 and the solar panel unit 8 and the pressing plate 32 together.

[0036] The waterproof sheet 22 is arranged to cover the floor portion 90 and is made of a soft resin material. The waterproof sheet 22 waterproofs the floor portion 90. The reinforcing plate 24 is arranged between the waterproof sheet 22 and the floor portion 90. The reinforcing plate 24 also has screw holes 246 as shown in FIG. 3. Screws 4 are inserted into the screw holes 246 and driven into the floor portion 90. This fixes the reinforcing plate 24 to the floor portion 90 via the screws 4. An insulating tape 26 is interposed between the waterproof sheet 22 and the reinforcing plate 24. In particular, in the example of FIG. 2, the insulating tape 26 is arranged to cover the screw holes 246. The aligner fixing device 28 is arranged on the waterproof sheet 22 (the opposite side of the waterproof sheet 22 from the reinforcing plate 24). The solar panel unit 8 is fixed to the aligner fixing device 28 via a connecting member 31 or the like.

[0037] The reinforcing plate 24 and the aligner fixture 28 each have higher rigidity than the waterproof sheet 22. Furthermore, a first joint 2A between the waterproof sheet 22 and the reinforcing plate 24, and a second joint 2B between the waterproof sheet 22 and the aligner fixture 28 are each joined by adhesion or welding.

[0038] With this configuration, the waterproof sheet 22 can be fixed to the floor 90 using the highly rigid reinforcing plate 24 without drilling holes through the waterproof sheet 22. The highly rigid reinforcing plate 24 and the aligner fixture 28 sandwich the less rigid waterproof sheet 22 between them. A portion of the waterproof sheet 22 is then sandwiched between the first joint 2A and the second joint 2B. This suppresses stress caused by differences in thermal expansion, preventing cracks and other damage to the waterproof sheet 22. As a result, the aligner fixture 28 can be firmly fixed to the floor 90 without compromising the waterproofing provided by the waterproof sheet 22. Furthermore, even if the solar panel unit 8 is blown by the wind, the aligner fixture 28 can be prevented from lifting off the floor 90.

[0039] 1.2.1. Tarpaulin As shown in Figure 2, the waterproof sheet 22 is laid so as to cover the upper surface of the floor 90. The waterproof sheet 22 may be made of a single resin sheet, or may be made of resin sheets joined together. By laying the waterproof sheet 22, waterproofing can be performed on the areas of the floor 90 that require waterproofing.

[0040] The waterproof sheet 22 is made of a soft resin material. A soft resin material refers to a material whose elastic modulus is lower than the elastic modulus of the main material of the reinforcing plate 24 and the main material of the aligner fixing device 28, which will be described later. By using a soft resin material, a waterproof sheet 22 with excellent shape conformability and ease of installation can be obtained.

[0041] The soft resin material is not particularly limited as long as it satisfies the above elastic modulus relationship, but examples include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, and ethylene-vinyl acetate copolymers, and one or more of these can be used in combination. Among these, vinyl chloride resins are preferably used. This allows the waterproof sheet 22 to have excellent solvent welding and thermal welding properties. Furthermore, the waterproof properties of the waterproof sheet 22 can be maintained for a long period of time. The constituent material of the waterproof sheet 22 may also be a mixture of the above resins with other resins.

[0042] The vinyl chloride resin is not particularly limited as long as it is a polymer containing vinyl chloride, i.e., an oligomer, prepolymer, or polymer, and examples thereof include a monomer polymer of vinyl chloride, a copolymer of vinyl chloride with vinyl acetate, ethylene, propylene, or the like, and a mixture of two or more of these polymers.

[0043] The waterproof sheet 22 may be a single layer or multiple layers. If multiple layers are used, at least one of the layers may be a fiber layer. The fiber layer may be any sheet composed of an aggregate of fibers, but examples include cloth such as woven or nonwoven fabric, and nets formed by warp and weft threads forming multiple lattices. The inclusion of such a fiber layer can improve the mechanical strength of the waterproof sheet 22, such as tear strength and tensile strength, and durability, such as repeated fatigue resistance. Specific examples of fiber layers include resin cloth sheets containing resin fibers, glass cloth sheets containing glass fibers, and carbon cloth sheets containing carbon fibers.

[0044] The thickness of the waterproof sheet 22 is not particularly limited, but is preferably about 0.5 mm to 5.0 mm, and more preferably about 1.0 mm to 2.5 mm, which ensures sufficient durability and waterproofness of the waterproof sheet 22 while also ensuring sufficient shape conformability and ease of installation.

[0045] The waterproof sheet 22 may contain additives, such as plasticizers, stabilizers, stabilizing aids, antioxidants, ultraviolet absorbers, processing aids, lubricants, fillers, flame retardants, shielding materials, and coloring materials.

[0046] The elastic modulus of the material constituting the waterproof sheet 22 is preferably 5 MPa or more and 200 MPa or less, and more preferably 30 MPa or more and 100 MPa or less, thereby obtaining a waterproof sheet 22 that is durable and waterproof, and also has shape conformability and ease of application.

[0047] The elastic modulus of the constituent material of the waterproof sheet 22 is the tensile modulus E, calculated from the tensile load and elongation (strain) measured according to the method specified in JIS A 6008:2022. Specifically, the tensile modulus E is calculated as E = (F / S) / ε, where S is the cross-sectional area of ​​the test specimen before the test, F is the tensile load, and ε is the elongation when the tensile load F is applied. The elongation ε is calculated as ε = ΔL / L0, where L0 is the length of the test specimen before the tensile load F is applied, and ΔL is the elongation when the tensile load F is applied. Here, the tensile load F is measured when the elongation ε from the initial state becomes 1.5%, and the tensile modulus E is calculated from this value. The measurement conditions are a temperature of 20°C, a relative humidity of 50% ± 10%, and a test speed of 200 mm / min. The test specimens used are pieces cut into three pieces in the longitudinal and transverse directions from the original roll from which the waterproof sheet 22 is manufactured. Then, the tensile modulus E is calculated for a total of six test pieces cut out from the original roll, and the average value is taken as the modulus of elasticity of the constituent material of the waterproof sheet 22.

[0048] 1.2.2. Reinforcement plate The reinforcing plate 24 is plate-shaped and has higher rigidity than the waterproof sheet 22. In this specification, "high rigidity" means that the modulus of elasticity of the main material of the reinforcing plate 24 is higher than that of the constituent material (soft resin material) of the waterproof sheet 22. In addition, the "main material" is the material in the reinforcing plate 24 that has the highest mass fraction.

[0049] Examples of the main material of the reinforcing plate 24 include metal materials, hard resin materials, etc. Alternatively, the reinforcing plate 24 may be a composite material that combines metal materials and hard resin materials.

[0050] Among these, examples of metal materials include stainless steel, iron-based alloys such as steel, aluminum alloys, and copper alloys. Of these, iron-based alloys are preferably used, and stainless steel is more preferably used. This can further increase the rigidity of the reinforcing plate 24 and provide it with good mechanical strength and durability.

[0051] Furthermore, the metal material may be subjected to rust prevention treatment as required, such as zinc-aluminum-magnesium plating, zinc plating, etc.

[0052] The elastic modulus of a metal material is defined by Young's modulus. The Young's modulus of a metal material is preferably 50 GPa or more and 500 GPa or less, and more preferably 100 GPa or more and 300 GPa or less. If the Young's modulus of a metal material is within the above range, a reinforcing plate 24 having sufficient rigidity and low brittleness can be realized. The Young's modulus of a metal material is measured, for example, by the test method defined in JIS G 0567:2020.

[0053] If the Young's modulus of the metal material is below the lower limit, the rigidity of the reinforcing plate 24 may decrease. On the other hand, if the Young's modulus of the metal material is above the upper limit, the brittleness of the reinforcing plate 24 may increase slightly, and the impact resistance may decrease.

[0054] The reinforcing plate 24 shown in Figure 3 has screw holes 246 through which screws 4 are inserted. The screw holes 246 are preferably formed so that the heads of the screws 4 are embedded in the holes. This prevents the screws 4 from protruding from the top surface of the reinforcing plate 24. The screws 4 are driven so that they reach the reinforced concrete slab 91 of the floor section 90. The screws 4 may be of a type that threads into a female screw provided in the floor section 90, or may have a structure in which the tip of the driven screw 4 opens (has an expansion section), or may have some other structure.

[0055] The reinforcing plate 24 shown in Fig. 3 is composed of a resin-coated metal plate having a metal plate 242 made of the above-mentioned metal material, a resin coating 244 covering the surface of the metal plate 242, and screw holes 246. This further improves the corrosion resistance of the reinforcing plate 24. In addition, the affinity between the reinforcing plate 24 and the waterproof sheet 22 is improved, which further increases the bonding strength of the first bonding portion 2A between the waterproof sheet 22 and the reinforcing plate 24.

[0056] Examples of materials constituting the resin coating 244 include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, and ethylene-vinyl acetate copolymers, and one or more of these can be used in combination, but polyvinyl chloride is preferably used. Polyvinyl chloride has excellent solvent and heat welding properties, so it can more reliably suppress corrosion of the metal plate 242.

[0057] Furthermore, it is preferable that the resin coating 244 and the waterproof sheet 22 contain the same resin. For example, if the waterproof sheet 22 contains a vinyl chloride resin, it is preferable that the resin coating 244 also contains a vinyl chloride resin. In other words, it is preferable that the first joint 2A be a joint between materials containing vinyl chloride resin. Furthermore, particularly when the waterproof sheet 22 is primarily composed of vinyl chloride resin, it is even more preferable that the resin coating 244 also contains vinyl chloride resin as a primary component. This particularly improves the affinity between the two surfaces at the first joint 2A, thereby particularly enhancing the joint strength. Furthermore, if the two surfaces are made of weldable materials, it is possible to particularly enhance the joint strength by welding. Note that the primary component is the component with the highest mass fraction.

[0058] The thickness of the resin coating 244 is not particularly limited, but is preferably about 100 μm to 3000 μm, more preferably about 200 μm to 2000 μm, and even more preferably about 300 μm to 1000 μm. This ensures sufficient coverage of the resin coating 244 over the metal plate 242, and also provides a reinforcing plate 24 with few pinholes and excellent weather resistance.

[0059] It is preferable that the resin coating 244 covers the entire surface of the metal plate 242, but there may be some areas that are not covered. For example, the resin coating 244 may be provided only on the surface of the metal plate 242 that faces the waterproof sheet 22. The thickness of the resin coating 244 may be the same overall, or may vary in some areas.

[0060] On the other hand, examples of hard resin materials include hard vinyl chloride resin, polyamide, polyvinyl chloride, polycarbonate, acrylic resin, polyethylene terephthalate, and ABS resin. The hard resin material may also be a polymer alloy or polymer blend containing these resins. Furthermore, the hard resin material may contain additives. Examples of additives include fillers and fiber pieces. Such hard resin materials can achieve sufficient rigidity without using metal materials. Furthermore, the reinforcing plate 24 can be made lighter and more corrosion-resistant, while also improving the compatibility between the reinforcing plate 24 and the waterproof sheet 22.

[0061] A hard vinyl chloride resin is preferably used as the hard resin material. Hard vinyl chloride resin has excellent weather resistance and good bonding properties with the waterproof sheet 22 containing a vinyl chloride resin. Hard vinyl chloride resin is a resin whose main component is vinyl chloride resin and whose plasticizer content is kept low. Specifically, the hard vinyl chloride resin preferably contains less than 15 parts by mass, and more preferably 10 parts by mass or less, of plasticizer per 100 parts by mass of vinyl chloride resin.

[0062] Furthermore, it is preferable that the main component of the hard resin material and the main component of the soft resin material (the constituent material of the waterproof sheet 22) are the same. For example, if the main component of the soft resin material is a vinyl chloride resin, it is preferable that the main component of the hard resin material is also a vinyl chloride resin. This results in particularly good affinity between the two surfaces at the first joint 2A, thereby particularly increasing the joint strength. Furthermore, if the two surfaces are made of weldable materials, the joint strength by welding can be particularly increased.

[0063] The modulus of elasticity of the hard resin material is defined by Young's modulus. The Young's modulus of the hard resin material is preferably 1 GPa or more and 10 GPa or less, and more preferably 2 GPa or more and 5 GPa or less. If the Young's modulus of the hard resin material is within the above range, a reinforcing plate 24 having sufficient rigidity and excellent impact resistance can be realized. The Young's modulus of the hard resin material is measured, for example, by the test method defined in ASTM D638.

[0064] If the Young's modulus of the hard resin material is below the lower limit, the rigidity of the reinforcing plate 24 may decrease. On the other hand, if the Young's modulus of the hard resin material is above the upper limit, the impact resistance of the reinforcing plate 24 may decrease.

[0065] The thickness of the reinforcing plate 24 is not particularly limited, but is preferably 1 mm to 5 mm, more preferably 2 mm to 4 mm. This provides sufficient rigidity and mechanical strength to the reinforcing plate 24. It also prevents the reinforcing plate 24 from becoming too heavy, which can reduce the deterioration in handleability that comes with the weight increase. Furthermore, it reduces the adverse effect of the step caused by the reinforcing plate 24 on the waterproof sheet 22.

[0066] The outer diameter (maximum length possible within the outer shape) of the reinforcing plate 24 when viewed from above is not particularly limited, but from the viewpoint of ensuring a larger area usable for the first joint 2A and a larger overlapping area between the first joint 2A and the second joint 2B, and from the viewpoint of preventing the reinforcing plate 24 from becoming larger and heavier, it is preferably 30 mm or more and 500 mm or less, more preferably 50 mm or more and 300 mm or less, and even more preferably 70 mm or more and 200 mm or less.

[0067] The shape of the reinforcing plate 24 when viewed from above (shape in plan view) is not particularly limited, and may be circular, polygonal such as rectangular or hexagonal, or other shapes. An optional sheet may be placed between the reinforcing plate 24 and the floor portion 90 .

[0068] 1.2.3.Insulating tape The insulating tape 26 is arranged on a portion (outer portion) of the reinforcing plate 24 that is located outside the first joint portion 2A. In this embodiment, the insulating tape 26 is attached to a portion of the upper surface of the reinforcing plate 24 that is different from the first joint portion 2A. In particular, it is preferable to cover the screw holes 246. This prevents the waterproof sheet 22 from being bonded to the screw holes 246 when the waterproof sheet 22 and the reinforcing plate 24 are bonded to form the first joint portion 2A. As a result, it is possible to prevent the waterproof sheet 22 from being bonded to the heads of the screws 4 inserted through the screw holes 246. This allows the heads of the screws 4 to be easily exposed when replacing the reinforcing plate 24, for example, improving the workability of the replacement work.

[0069] Furthermore, the insulating tape 26 preferably covers the outer edge of the reinforcing plate 24. The outer edge refers to the ridge formed by the top and side surfaces of the reinforcing plate 24. Covering the outer edge with the insulating tape 26 prevents the waterproof sheet 22 and the reinforcing plate 24 from being joined at the portion (outer portion) outside the first joint 2A. Direct contact between the outer edge of the reinforcing plate 24 and the waterproof sheet 22 is also prevented, reducing the probability of damage to the waterproof sheet 22. The unjoined state between the reinforcing plate 24 and the waterproof sheet 22 may be achieved by methods other than the method using the insulating tape 26, such as a method that does not apply an adhesive or a method that does not use a solvent for solvent welding. On the other hand, the method using the insulating tape 26 is advantageous in that it is highly operable and allows for easy adjustment of whether or not the reinforcing plate 24 is joined.

[0070] The placement of insulating tape 26 is not limited to the above. For example, insulating tape 26 may be placed in a position that does not cover screw holes 246, specifically, outside screw holes 246. In this case, too, it is preferable that the area around screw holes 246 is not joined to waterproof sheet 22.

[0071] Furthermore, part of the insulating tape 26 may cover not only the top surface of the reinforcing plate 24 but also the side surfaces thereof. This allows for more precise control of the bonding range between the reinforcing plate 24 and the waterproof sheet 22. Furthermore, part of the insulating tape 26 may cover the side surfaces of the reinforcing plate 24 and be sandwiched between the reinforcing plate 24 and the floor 9. This makes it possible, for example, to prevent the reinforcing plate 24 from being bonded together when the waterproof sheet 22 and the floor 9 are bonded.

[0072] The insulating tape 26 may be any tape that can prevent bonding between the waterproof sheet 22 and the reinforcing plate 24 when forming the first joint portion 2A. Specific examples include a resin tape made of a resin sheet and an adhesive layer, and a metal tape made of a metal sheet (metal foil) and an adhesive layer.

[0073] Examples of materials that can be used to make resin sheets include various resin materials such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), polyethylene terephthalate, polypropylene, ethylene-vinyl acetate copolymer (EVA), polyamide, acrylic resin, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, and polystyrene.

[0074] The resin sheet may have a single layer structure made of the above-mentioned resin material, or may have a multilayer structure made of a layer made of the above-mentioned resin material and other layers.

[0075] Examples of materials constituting the metal sheet include various metal materials such as aluminum, titanium, nickel, and the like, or alloys thereof, and stainless steel.

[0076] The metal sheet may have a single layer structure made of the above-mentioned metal material, or may have a multi-layer structure made of a layer made of the above-mentioned metal material and another layer, such as a resin layer covering the surface of the metal layer.

[0077] Furthermore, when the insulating tape 26 is composed of multiple layers, at least one of the layers may be a fiber layer. The fiber layer may be any sheet composed of an aggregate of fibers, but examples thereof include cloth such as woven or nonwoven fabric, and nets formed by warp and weft threads forming multiple lattices. The inclusion of such a fiber layer can improve the mechanical strength, such as tear strength and tensile strength, and durability, such as resistance to repeated fatigue, of the insulating tape 26.

[0078] The adhesive layer has adhesiveness that allows the resin sheet or metal sheet to be fixed to the reinforcing plate 24. By providing such an adhesive layer, the resin sheet or metal sheet can be easily fixed.

[0079] It is preferable that the insulating tape 26 is fixed to the reinforcing plate 24 by the adhesiveness of the adhesive layer, but it may also be fixed to the waterproof sheet 22, or to both.

[0080] The thickness of insulating tape 26 is not particularly limited, but is preferably, for example, about 10 μm to 2000 μm, more preferably about 30 μm to 500 μm, and even more preferably about 50 μm to 200 μm, which allows insulating tape 26 to more reliably exhibit the above-mentioned functions. The insulating tape 26 may be provided as needed and may be omitted. The insulating tape 26 may also be disposed in a position different from that described above.

[0081] 1.2.4. Arrangement body fixture The aligner fixture 28 fixes the solar panel unit 8 via connecting members 31 and the like. The aligner fixture 28 shown in FIG. 2 has a bottom 286 and an upright portion 288. The bottom 286 is a plate-shaped portion. The lower surface of the bottom 286 is joined to the upper surface of the waterproof sheet 22, forming the first joint portion 2A. The upright portion 288 is a plate-shaped portion that rises upward from the bottom 286. The solar panel unit 8 (aligner) is fixed to the upright portion 288 via connecting members 31 and fastening members 33, 34 and the like. For this reason, the upright portion 288 may be provided with bolt holes or the like through which the fastening members 33 can be inserted, as necessary.

[0082] The shape of the aligner fixing device 28 may be any shape, as it is set appropriately depending on the type and shape of the solar panel unit 8. For example, the standing portion 288 may be omitted, and the connecting member 31 or the solar panel unit 8 may be fixed to the bottom portion 286.

[0083] The aligner fixture 28 has higher rigidity than the waterproof sheet 22. In this specification, "high rigidity" means that the modulus of elasticity of the main material of the aligner fixture 28 is higher than that of the constituent material of the waterproof sheet 22. In addition, the "main material" is the material in the aligner fixture 28 that has the highest mass fraction.

[0084] Examples of the main material of the alignment member fixture 28 include metal materials, hard resin materials, etc. Alternatively, it may be a composite material that combines metal materials and hard resin materials.

[0085] Among these, examples of metal materials include stainless steel, iron-based alloys such as steel, aluminum alloys, and copper alloys. Of these, iron-based alloys are preferably used, and stainless steel is more preferably used. This can further increase the rigidity of the alignment member fixture 28 and provide it with good mechanical strength and durability.

[0086] Furthermore, the metal material may be subjected to rust prevention treatment as required, such as zinc-aluminum-magnesium plating, zinc plating, etc.

[0087] The elastic modulus of a metal material is defined by Young's modulus. The Young's modulus of a metal material is preferably 50 GPa or more and 500 GPa or less, and more preferably 100 GPa or more and 300 GPa or less. If the Young's modulus of a metal material is within the above range, an alignment member fixture 28 with particularly high rigidity can be realized. The Young's modulus of a metal material is measured, for example, by the test method defined in JIS G 0567:2020.

[0088] If the Young's modulus of the metal material is below the lower limit, the rigidity of the aligner fixture 28 may decrease. On the other hand, if the Young's modulus of the metal material is above the upper limit, the brittleness of the aligner fixture 28 may increase slightly, and the impact resistance may decrease.

[0089] 4 is composed of a resin-coated metal body having a metal base 282 made of the above-mentioned metal material and a resin coating 284 that covers the surface of this metal base 282. This further improves the corrosion resistance of the aligner fixture 28. In addition, the affinity between the aligner fixture 28 and the waterproof sheet 22 is improved, which further increases the bonding strength of the second bonding portion 2B between the waterproof sheet 22 and the aligner fixture 28.

[0090] Examples of materials that can be used for the resin coating 284 include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, and ethylene-vinyl acetate copolymers, and one or more of these can be used in combination, but polyvinyl chloride is preferred. Polyvinyl chloride has excellent solvent and heat weldability, so it can more reliably prevent corrosion of the metal substrate 282.

[0091] Furthermore, it is preferable that the resin coating 284 and the waterproof sheet 22 contain the same resin. For example, if the waterproof sheet 22 contains a vinyl chloride resin, it is preferable that the resin coating 284 also contains a vinyl chloride resin. In other words, it is preferable that the second joint 2B be a joint between materials containing vinyl chloride resin. Furthermore, particularly when the waterproof sheet 22 is primarily composed of vinyl chloride resin, it is even more preferable that the resin coating 284 also contains vinyl chloride resin as a primary component. This particularly improves the affinity between the two surfaces at the second joint 2B, thereby particularly enhancing the joint strength. Furthermore, when the two surfaces are composed of weldable materials, particularly vinyl chloride resin, it is possible to particularly enhance the joint strength by welding.

[0092] The thickness of resin coating 284 is not particularly limited, but is preferably about 100 μm to 3000 μm, more preferably about 200 μm to 2000 μm, and even more preferably about 300 μm to 1000 μm. This ensures sufficient coverage of resin coating 284 over metal base 282, and also provides an arrangement member fixture 28 with few pinholes and excellent weather resistance.

[0093] It is preferable that the resin coating 284 covers the entire surface of the metal base 282, but there may be some areas that are not covered. For example, the resin coating 284 may be provided only on the surface of the metal base 282 that faces the waterproof sheet 22. The thickness of the resin coating 284 may be the same overall, or may vary in some areas.

[0094] On the other hand, examples of hard resin materials include hard vinyl chloride resin, polyamide, polyvinyl chloride, polycarbonate, acrylic resin, polyethylene terephthalate, ABS resin, etc. The hard resin material may also be a polymer alloy, polymer blend, etc. containing these resins. Furthermore, the hard resin material may contain additives. Examples of additives include fillers and fiber pieces. Such hard resin materials can achieve sufficient rigidity without using metal materials. Furthermore, the weight and corrosion resistance of the aligner fixture 28 can be reduced, and the compatibility between the aligner fixture 28 and the waterproof sheet 22 can be improved.

[0095] A hard vinyl chloride resin is preferably used as the hard resin material. Hard vinyl chloride resin has excellent weather resistance and good bonding properties with the waterproof sheet 22 containing a vinyl chloride resin. Hard vinyl chloride resin is a resin whose main component is vinyl chloride resin and whose plasticizer content is kept low. Specifically, the hard vinyl chloride resin preferably contains less than 15 parts by mass, and more preferably 10 parts by mass or less, of plasticizer per 100 parts by mass of vinyl chloride resin.

[0096] Furthermore, it is preferable that the main component of the hard resin material and the main component of the soft resin material (the constituent material of the waterproof sheet 22) are the same. For example, if the main component of the soft resin material is vinyl chloride resin, it is preferable that the main component of the hard resin material is also vinyl chloride resin. This results in particularly good affinity between the two surfaces at the second joint 2B, thereby particularly increasing the joint strength. Furthermore, if the two surfaces are made of weldable materials, particularly vinyl chloride resin, the joint strength by welding can be particularly increased.

[0097] The modulus of elasticity of the hard resin material is defined by Young's modulus. The Young's modulus of the hard resin material is preferably 1 GPa or more and 10 GPa or less, and more preferably 2 GPa or more and 5 GPa or less. If the Young's modulus of the hard resin material is within the above range, an aligner fixture 28 having sufficient rigidity and excellent impact resistance can be realized. The Young's modulus of the hard resin material is measured, for example, by the test method defined in ASTM D638.

[0098] If the Young's modulus of the hard resin material is below the lower limit, the rigidity of the aligner fixture 28 may decrease. On the other hand, if the Young's modulus of the hard resin material is above the upper limit, the impact resistance of the aligner fixture 28 may decrease.

[0099] 1.2.5. First and second joints The first joint 2A is the area where the lower surface of the waterproof sheet 22 and the upper surface of the reinforcing plate 24 are joined. Examples of joining methods include adhesion using an adhesive or welding such as solvent welding or heat welding (thermal fusion). By joining the two surfaces in this manner, the waterproof sheet 22 and the reinforcing plate 24 can be fixed together without compromising the waterproof properties of the waterproof sheet 22. Furthermore, welding is particularly preferred for joining the first joint 2A. Welding can integrate the two surfaces. This particularly enhances the joining strength of the first joint 2A.

[0100] The second joint 2B is the area where the upper surface of the waterproof sheet 22 and the lower surface of the aligner fixture 28 are joined. Examples of joining methods include adhesion using an adhesive or welding such as solvent welding or heat welding (thermal fusion). By joining the two surfaces in this manner, the waterproof sheet 22 and the aligner fixture 28 can be fixed together without compromising the waterproofing properties of the waterproof sheet 22. Furthermore, welding is particularly preferred for joining the second joint 2B. Welding can integrate the two surfaces. This particularly enhances the joining strength of the second joint 2B.

[0101] The area of ​​the second joint portion 2B may be larger than the area of ​​the first joint portion 2A, but is preferably smaller. A small area refers to a state in which the second joint portion 2B is enclosed within the first joint portion 2A when viewed from above. In other words, when viewed from above, the outer edge of the second joint portion 2B is located inside the outer edge of the first joint portion 2A. By satisfying this size relationship, damage to the second joint portion 2B and its surrounding area can be effectively suppressed even when the solar panel unit 8 is blown by strong winds. Specifically, even when an upward tensile load or horizontal shear load is applied to the aligner fixture 28, stress concentration at the outer edge of the second joint portion 2B can be suppressed. This suppresses damage to the waterproof sheet 22.

[0102] Furthermore, by satisfying the above-described magnitude relationship, the waterproof sheet 22, which has a relatively low rigidity, can be sandwiched between the reinforcing plate 24 and the aligner fixture 28, which have a relatively high rigidity. This prevents the thermal expansion of the waterproof sheet 22 in the area where the first joint 2A and the second joint 2B overlap, even if there is a difference in the thermal expansion coefficient between the waterproof sheet 22 and the reinforcing plate 24, or between the waterproof sheet 22 and the aligner fixture 28. As a result, stress concentration due to the difference in thermal expansion is prevented, and damage to the waterproof sheet 22 can be prevented.

[0103] The area of ​​the second joint portion 2B is preferably less than 100% of the area of ​​the first joint portion 2A, more preferably 20% to 95%, and even more preferably 50% to 90%. This allows the area balance between the first joint portion 2A and the second joint portion 2B to be optimized, so that the entire aligner fixing structure 1 can both ensure load-bearing capacity and mitigate stress concentration.

[0104] If the area of ​​the second bonding portion 2B is below the lower limit, the area of ​​the second bonding portion 2B may become too small depending on the area of ​​the first bonding portion 2A, and sufficient load-bearing capacity may not be ensured. On the other hand, if the area of ​​the second bonding portion 2B is above the upper limit, the ratio to the area of ​​the first bonding portion 2A becomes large, and there is a risk that stress concentration may not be sufficiently alleviated.

[0105] Furthermore, the first joint portion 2A is preferably located closer to the center than the screw holes 246 of the reinforcing plate 24. Specifically, it is preferable that the screw holes 246 of the reinforcing plate 24 are located not in the center (the portion closer to the center of gravity than the middle of the line segment connecting the center of gravity of the reinforcing plate 24 and the outer edge) but in a portion (outer portion) closer to the outer edge than the center. In this case, it is preferable to locate the first joint portion 2A within the center. This prevents interference between the first joint portion 2A and the screw holes 246. As a result, in the outer portion, the screws 4 inserted into the screw holes 246 can be easily exposed simply by removing the waterproof sheet 22. Therefore, when replacing the reinforcing plate 24, for example, the reinforcing plate 24 can be easily removed by simply peeling back the waterproof sheet 22 and loosening the screws 4. This improves the workability of the replacement work.

[0106] 1.2.5.Connecting members and retaining plates The connecting member 31 connects the solar panel unit 8 and the mounting body fixture 28 .

[0107] 2 is in the form of a folded plate and includes a base 312 fixed to the aligner fixture 28 and a support portion 314 to which the solar panel unit 8 is attached. The base 312 is fastened to the erected portion 288 of the aligner fixture 28 by a fastening member 33. This fixes the connecting member 31 to the aligner fixture 28. The shape of the connecting member 31 is set appropriately depending on the type, shape, etc. of the solar panel unit 8. For example, a member equivalent to the connecting member 31 may be attached to the solar panel unit 8 in advance, or the connecting member 31 may be omitted and the solar panel unit 8 may be directly connected to the aligner fixture 28.

[0108] 2 is made up of a bolt 332 and a nut 334. However, the configuration of the fastening member 33 is not limited to this.

[0109] 2 sandwiches the solar panel unit 8 between itself and the connection member 31. The connection member 31 and the solar panel unit 8 are then fastened together with the fastening member 34. This allows the solar panel unit 8 to be connected to the mounting body fixture 28. As a result, the solar panel unit 8 is fixed to the floor portion 90.

[0110] 2 is made up of a bolt 342 and a nut 344. However, the configuration of the fastening member 34 is not limited to this.

[0111] 1.3.Replacement method Next, a method for replacing the placement body fixing structure 1 after construction will be described.

[0112] After the solar panel unit 8 is fixed to the floor 90 using the above-described aligner fixing structure 1, the solar panel unit 8 may need to be removed or replaced due to deterioration over time or other reasons. In such cases, the existing aligner fixing structure 1 may be removed and a new aligner fixing structure 1 may be installed. This procedure will be described as a method for replacing the aligner fixing structure 1.

[0113] FIG. 5 is a schematic diagram for explaining a method for replacing the arrangement member fixing structure 1 shown in FIG. First, as shown in FIG. 5(a), a cut is made with a blade 71 in a portion of the waterproof sheet 22 located on the reinforcing plate 24 that corresponds to the outside of the first joint 2A. The cut is made so as to surround the first joint 2A. Because the reinforcing plate 24 has sufficient rigidity, even when the cut is made with the blade 71, the blade 71 is unlikely to penetrate the reinforcing plate 24. This makes it possible to prevent damage to the floor portion 90 by the blade 71.

[0114] Next, as shown in Figure 5(b), the waterproof sheet 22 is peeled up from the portion not joined to the reinforcing plate 24. At this time, the insulating tape 26 may be peeled up together with the waterproof sheet 22, or the insulating tape 26 may be removed, as shown in Figure 5(b). This exposes the outer portion of the reinforcing plate 24, making it easier to access the screws 4.

[0115] Next, the screws 4 are loosened and the reinforcing plate 24 is removed as shown in Fig. 5(c), thereby completing the removal of the existing arranging body fixing structure 1.

[0116] Thereafter, if necessary, a new reinforcing plate 24 (not shown) is attached. A waterproof sheet and an aligner fixing tool (not shown) may be attached to the reinforcing plate 24 in advance, or the waterproof sheet and the aligner fixing tool may be attached after the reinforcing plate 24 is attached. In this manner, a new aligner fixing structure 1 can be constructed.

[0117] 2. Variations Next, an arrangement member fixing structure according to a modification of the first embodiment will be described. FIG. 6 is a partially enlarged cross-sectional view showing an arrangement unit fixing structure 1 according to a modified example of the first embodiment.

[0118] A modified example of the first embodiment will be described below, but the following description will focus on the differences from the first embodiment and will omit a description of similar points. Note that in Fig. 6, the same reference numerals are used to designate the same components as those in the first embodiment.

[0119] The modified example of the first embodiment is similar to the first embodiment except that the shape of the arrangement body fixture 28 is different.

[0120] The aligner fixture 28 shown in Fig. 6 has a bottom portion 286 and two upright portions 288, 288. A separate solar panel unit 8 is connected to each upright portion 288. This allows the aligner fixing structure 1 shown in Fig. 6 to fix two solar panel units 8 adjacent to each other in the Y-axis direction to the floor portion 90 by itself. In the above-described modified example, the same effects as in the first embodiment can be obtained.

[0121] 3. Second embodiment Next, an arrangement unit fixing structure and an arrangement unit fixing member according to a second embodiment will be described. FIG. 7 is a partially enlarged cross-sectional view showing the arrangement unit fixing structure 1 according to the second embodiment.

[0122] The second embodiment will be described below, focusing on the differences from the first embodiment and omitting a description of similarities. Note that in Fig. 7, the same reference numerals are used to designate the same components as those in the first embodiment.

[0123] The second embodiment is similar to the first embodiment except that the configuration of the arrangement unit fixing structure 1 is different.

[0124] In the first embodiment described above, the size of the waterproof sheet 22 is set so as to cover the entire area that requires waterproofing on the floor portion 90. Therefore, the aligner fixing structure 1 according to the first embodiment is useful, for example, when a new frame 9 is constructed or when the waterproofing of the floor portion 90 is to be completely renewed.

[0125] In contrast to this, in the second embodiment, an existing waterproof sheet 6 is provided on the floor portion 90 before the installation of the aligner fixing structure 1. Then, the aligner fixing structure 1 according to the second embodiment is constructed on this existing waterproof sheet 6.

[0126] Therefore, the arranging body fixing structure 1 shown in Figure 7 is the same as the arranging body fixing structure 1 shown in Figure 2, except that screws 4 are driven so as to penetrate the existing waterproof sheet 6, and individual pieces of waterproof sheet 22 are used to cover holes formed in the existing waterproof sheet 6 by the screws 4. The arranging body fixing structure 1 according to the second embodiment is useful when arranging a solar panel unit 8 (arranging body) on a floor 90 where an existing waterproof sheet 6 exists, for example, whether the main body 9 is being constructed or renovated.

[0127] The waterproof sheet 22 shown in Figure 7 is positioned so as to cover at least the reinforcing plate 24. The portion of the waterproof sheet 22 that extends beyond the reinforcing plate 24 is joined to the existing waterproof sheet 6. This allows a continuous waterproof layer to be formed by the existing waterproof sheet 6 and the waterproof sheet 22, thereby enabling good waterproofing to be performed over the required area on the floor section 90. Therefore, the area of ​​the waterproof sheet 22 shown in Figure 7 needs only to be larger than the reinforcing plate 24, but is preferably set to be at least 1.5 times the area of ​​the reinforcing plate 24, more preferably set to be between 2.0 and 50 times, and even more preferably set to be between 3.0 and 30 times. This ensures a sufficient joining area between the waterproof sheet 22 and the existing waterproof sheet 6, resulting in an arrangement body fixing structure 1 with excellent waterproofing properties.

[0128] Furthermore, the waterproof sheet 22 is shaped so that it can contain the outer edge of the reinforcing plate 24 when viewed from above (the outer edge of the reinforcing plate 24 is positioned inside the outer edge of the waterproof sheet 22). This allows the waterproof sheet 22 to be joined to the existing waterproof sheet 6 all around the reinforcing plate 24. The waterproof sheet 22 and the existing waterproof sheet 6 may be joined by adhesion or welding.

[0129] The reinforcing plate 24 shown in FIG. 7 is placed between the waterproof sheet 22 and the existing waterproof sheet 6. Screws 4 are inserted into the screw holes 246. The screws 4 penetrate the existing waterproof sheet 6 and are driven into the floor 90. The existing waterproof sheet 6 may be another waterproof substrate, such as a resin-coated steel plate. In the second embodiment as described above, the same effects as in the first embodiment can be obtained.

[0130] Furthermore, in the second embodiment, the waterproof sheet 22 can be made relatively small, so the first joint 2A and the second joint 2B can be formed in a location other than the construction site of the aligner fixing structure 1, such as a factory. Therefore, in the second embodiment, a pre-manufactured aligner fixing member 5 can be used to construct the aligner fixing structure 1. This eliminates the need to form the first joint 2A and the second joint 2B at the construction site, reducing the number of work steps at the construction site. Also, it is possible to suppress variation in the joining quality of the first joint 2A and the second joint 2B.

[0131] The aligner fixing member 5 shown in FIG. 7 includes a waterproof sheet 22, a reinforcing plate 24, insulating tape 26, and an aligner fixing tool 28. The aligner fixing member 5 also includes a first joint 2A formed by joining the waterproof sheet 22 and the reinforcing plate 24, and a second joint 2B formed by joining the waterproof sheet 22 and the aligner fixing tool 28. The insulating tape 26, the aligner fixing tool 28, and the second joint 2B may be provided as needed and may be omitted. Meanwhile, providing the insulating tape 26 can prevent the waterproof sheet 22 and the reinforcing plate 24 from being joined to an unintended extent when forming the first joint 2A. This improves the manufacturing efficiency of the aligner fixing member 5.

[0132] In this type of alignment unit fixing member 5, similar to the alignment unit fixing structure 1 according to the first embodiment, it is preferable that the first joint portion 2A and the screw holes 246 of the reinforcing plate 24 are set so as not to overlap each other. This makes it possible to expose the screw holes 246 by rolling up the waterproof sheet 22, even if the first joint portion 2A has been formed in advance at a factory or the like. As a result, the screws 4 can be easily inserted into the screw holes 246 at the construction site.

[0133] Furthermore, when removing the aligner fixing structure 1 according to the second embodiment, an incision is made in the waterproof sheet 22 located on the reinforcing plate 24, as in the first embodiment. In this case, because the reinforcing plate 24 has sufficient rigidity, the probability that the incision will reach the existing waterproof sheet 6 can be reduced, making the work easier. Also, after removing the aligner fixing structure 1, the traces left on the existing waterproof sheet 6 can be minimized. Furthermore, when a new aligner fixing structure 1 is constructed on top of the existing waterproof sheet 6, a decrease in the waterproofing properties of the existing waterproof sheet 6 can be suppressed.

[0134] On the other hand, if a new locator fixing structure 1 is not constructed and only the existing waterproof sheet 6 is left in place, it is necessary to remove the screws 4 shown in Figure 7 and then seal the holes remaining in the existing waterproof sheet 6 and floor 9. In this case, after making an incision and removing the locator solid structure 1, the holes can be easily sealed by using the remaining part of the waterproof sheet 22 remaining on the existing waterproof sheet 6.

[0135] 7, a portion of the waterproof sheet 22 is insulated (not joined) to the periphery of the screw hole 246 by insulating tape 26. In this case, by making an incision inside the screw 4 (toward the center of the reinforcing plate 24) and removing the reinforcing plate 24 and the members joined to it, a portion of the waterproof sheet 22 (the portion covering the hole remaining in the floor portion 9) can be left. Reusing the remaining waterproof sheet 22 to seal the hole in this way can contribute to reducing the number of steps and costs involved.

[0136] Moreover, because the underside of the waterproof sheet 22 covering the hole was in contact with the insulating tape 26 and the upper surface of the existing waterproof sheet 6 was in contact with the reinforcing plate 24, it is highly likely that they will maintain their original state (a state with little deterioration over time) when the aligner fixing structure 1 was installed. Therefore, when the waterproof sheet 22 and the existing waterproof sheet 6 are joined, high joining strength can be ensured. In particular, when the surfaces to be joined are made of a weldable material, good weldability can be ensured and high joining strength can be obtained.

[0137] 4. Effects of the above embodiment The aligner fixing structure 1 according to the embodiment is a structure for fixing a solar panel unit 8 (aligner) to a floor 90, and includes a waterproof sheet 22, a reinforcing plate 24, and an aligner fixing device 28. The waterproof sheet 22 is arranged to cover the floor 90 and is made of a soft resin material. The reinforcing plate 24 is arranged between the waterproof sheet 22 and the floor 90, has screw holes 246 through which screws 4 are inserted, and is fixed to the floor 90 with the screws 4. The aligner fixing device 28 is arranged on the opposite side of the waterproof sheet 22 from the reinforcing plate 24, and fixes the solar panel unit 8. The reinforcing plate 24 and the aligner fixing device 28 are each more rigid than the waterproof sheet 22. Furthermore, a first joint 2A between the waterproof sheet 22 and the reinforcing plate 24 and a second joint 2B between the waterproof sheet 22 and the aligner fixing device 28 are each joined by adhesion or welding.

[0138] With this configuration, the waterproof sheet 22 can be fixed to the floor 90 using the highly rigid reinforcing plate 24, without drilling holes through the waterproof sheet 22. Furthermore, the highly rigid reinforcing plate 24 and the aligner fixing device 28 are used to sandwich the waterproof sheet 22, which has a lower rigidity. This suppresses the generation of stress due to differences in thermal expansion, and prevents cracks and the like from occurring in the waterproof sheet 22. As a result, the aligner fixing device 28 can be firmly fixed to the floor 90 without compromising the waterproofing treatment provided by the waterproof sheet 22, resulting in an aligner fixing structure 1 with excellent load-bearing capacity. Furthermore, for example, even if the solar panel unit 8 is blown by the wind, the aligner fixing device 28 can be prevented from lifting off the floor 90.

[0139] In the arrangement member fixing structure 1 according to the embodiment, the area of ​​the second joint portion 2B is smaller than the area of ​​the first joint portion 2A.

[0140] With this configuration, even if the solar panel unit 8 is blown by a strong wind, damage to the second joint portion 2B and its surroundings can be effectively prevented.

[0141] In the aligner fixing structure 1 according to the embodiment, the first joint portion 2A is set closer to the center of the reinforcing plate 24 than the screw holes 246.

[0142] This configuration prevents interference between the first joint portion 2A and the screw hole 246. This makes it possible to easily expose the screw 4 inserted into the screw hole 246. As a result, the reinforcing plate 24 can be easily removed, improving the workability of the replacement work.

[0143] In the arrangement member fixing structure 1 according to the embodiment, the waterproof sheet 22 is not joined to an outer portion of the reinforcing plate 24 that is positioned further outward than the first joint portion 2A.

[0144] With this configuration, for example, when replacing the reinforcing plate 24, the reinforcing plate 24 can be easily removed by simply peeling back the waterproof sheet 22 and loosening the screws 4. As a result, the workability of the replacement work is improved.

[0145] The arrangement member fixing structure 1 according to the embodiment includes an insulating tape 26 disposed between the outer portion of the reinforcing plate 24 and the waterproof sheet 22 .

[0146] With this configuration, for example, even when the screw holes 246 are located on the outer portion, it is possible to prevent the waterproof sheet 22 from being bonded to the screw holes 246. Also, when a screw 4 is inserted into the screw hole 246, it is possible to prevent the waterproof sheet 22 from being bonded to the head of the screw 4. This makes it possible to easily expose the head of the screw 4 when replacing the reinforcing plate 24, for example, and improves the workability of the replacement work.

[0147] In the aligner fixing structure 1 according to the embodiment, the reinforcing plate 24 has a metal plate 242 and a resin coating 244 that coats the metal plate 242 .

[0148] This configuration further improves the corrosion resistance of the reinforcing plate 24. In addition, the affinity between the reinforcing plate 24 and the waterproof sheet 22 is improved, which further increases the bonding strength of the first bonding portion 2A between the waterproof sheet 22 and the reinforcing plate 24.

[0149] In the aligner fixing structure 1 according to the embodiment, the aligner fixture 28 has a metal base 282 and a resin coating 284 that coats the metal base 282 .

[0150] This configuration further improves the corrosion resistance of the reinforcing plate 24. In addition, the affinity between the aligner fixture 28 and the waterproof sheet 22 is improved, which further increases the bonding strength of the second bonding portion 2B between the waterproof sheet 22 and the aligner fixture 28.

[0151] In the arrangement member fixing structure 1 according to the embodiment, the resin coatings 244, 284 and the waterproof sheet 22 contain the same resin.

[0152] With this configuration, the affinity between the two surfaces at the first bonding portion 2A and the second bonding portion 2B is particularly good, thereby particularly increasing the bonding strength. Furthermore, if the two surfaces are made of weldable materials, the bonding strength by welding can be particularly increased.

[0153] In the arrangement member fixing structure 1 according to the embodiment, the reinforcing plate 24 includes a hard resin material.

[0154] With this configuration, the reinforcing plate 24 can be made lighter and more corrosion-resistant, and the affinity between the reinforcing plate 24 and the waterproof sheet 22 can be improved.

[0155] In the aligner fixing structure 1 according to the embodiment, the aligner fixing tool 28 includes a hard resin material.

[0156] With this configuration, the weight of the locating body fixing device 28 can be reduced and the corrosion resistance can be improved, and the affinity between the locating body fixing device 28 and the waterproof sheet 22 can be improved.

[0157] In the aligner fixing structure 1 according to the embodiment, the main component of the hard resin material and the main component of the soft resin material are the same.

[0158] With this configuration, the affinity between the two surfaces at the first bonding portion 2A and the second bonding portion 2B is particularly good, thereby particularly increasing the bonding strength. Furthermore, if the two surfaces are made of weldable materials, the bonding strength by welding can be particularly increased.

[0159] In the aligner fixing structure 1 according to the embodiment, the first joint portion 2A and the second joint portion 2B are joined by welding materials containing vinyl chloride resin together. With this configuration, a particularly high bonding strength can be obtained.

[0160] In the arrangement body fixing structure 1 according to the embodiment, the arrangement body is a solar panel unit 8.

[0161] With this configuration, even when fixing an arrangement body that is easily blown around by the wind, such as a solar panel unit 8, the arrangement body fixing device 28 can be firmly fixed to the floor portion 90, resulting in an arrangement body fixing structure 1 with excellent load-bearing capacity.

[0162] The positioning body fixing member 5 according to the embodiment is a member used in the positioning body fixing structure 1 according to the embodiment, and comprises a waterproof sheet 22 and a reinforcing plate 24, and the first joint 2A is joined by adhesion or welding.

[0163] With this configuration, the positioning body fixing member 5 can be manufactured in advance at a location other than the construction site, such as a factory, so there is no need to form the first joint 2A at the construction site, and this results in an arrangement body fixing member 5 that can reduce the amount of work required at the construction site.

[0164] The aligner fixing member 5 according to the embodiment includes an aligner fixing tool 28. In addition, the second joint portion 2B is joined by adhesion or welding.

[0165] According to this configuration, there is no need to form the second joint portion 2B at the construction site, and an arrangement body fixing member 5 can be obtained that can further reduce the number of work steps at the construction site.

[0166] Although the aligner fixing structure and aligner fixing member of the present invention have been described above, the present invention is not limited to these.

[0167] For example, the aligner fixing structure and aligner fixing member of the present invention may be such that each component of the above-described embodiment is replaced with any component that can perform the same function, or such that any component is added to the above-described embodiment. [Explanation of symbols]

[0168] 1 Arrangement fixing structure 2A 1st joint 2B 2nd joint 4 bis 5. Array fixing member 6 Existing waterproof sheet 8 solar panel units 9 skeleton 22 Tarpaulin 24 Reinforcement plate 26 Electrical tape 28 Arrangement body fixture 31 Connecting member 32 Retaining plate 33 Fastening members 34 Fastening members 71 Cutlery 90 Floor 91 RC slab 92 Insulation Panel 242 Metal plate 244 Resin coating 246 screw holes 282 Metal substrate 284 Resin coating 286 Bottom 288 Standing section 312 Base 314 Support part 332 volts 334 Nut 342 volts 344 Nut

Claims

1. A structure for fixing an arrangement body to a floor portion, A waterproof sheet arranged to cover the floor portion and made of a soft resin material; A reinforcing plate disposed between the waterproof sheet and the floor, having screw holes through which screws are inserted, and fixed to the floor by the screws; an arrangement body fixing device that is arranged on the opposite side of the waterproof sheet from the reinforcing plate and that fixes the arrangement body; Equipped with the reinforcing plate and the aligner fixing tool each have greater rigidity than the waterproof sheet; An arrangement fixing structure characterized in that a first joint between the waterproof sheet and the reinforcing plate, and a second joint between the waterproof sheet and the arrangement fixing device are each joined by adhesive or welding.

2. 2. The arrangement fixing structure according to claim 1, wherein the area of ​​the second joint portion is smaller than the area of ​​the first joint portion.

3. 3. The structure for fixing an arrangement member according to claim 1, wherein the first joint portion is set closer to the center of the reinforcing plate than the screw hole.

4. The arrangement fixing structure according to claim 3 , wherein an outer portion of the reinforcing plate located outside the first joint portion is not joined to the waterproof sheet.

5. 5. The structure of claim 4, further comprising an insulating tape disposed between the outer portion and the waterproof sheet.

6. 2. The structure for fixing an alignment member according to claim 1, wherein the reinforcing plate comprises a metal plate and a resin coating covering the metal plate.

7. 2. The aligner fixing structure according to claim 1, wherein the aligner fixing device comprises a metal base and a resin coating covering the metal base.

8. 8. The structure for fixing an aligner according to claim 6, wherein the resin coating and the waterproof sheet contain the same resin.

9. The arrangement according to claim 1 , wherein the reinforcing plate comprises a hard resin material.

10. The aligner fixing structure according to claim 1 , wherein the aligner fixing device comprises a hard resin material.

11. 11. The aligner fixing structure according to claim 9, wherein the main component of the hard resin material and the main component of the soft resin material are the same.

12. 3. The arrangement member fixing structure according to claim 1, wherein the first joint portion and the second joint portion are joined by welding materials containing vinyl chloride resin together.

13. 3. The arrangement body fixing structure according to claim 1, wherein the arrangement body is a solar panel unit.

14. A member used in the arrangement member fixing structure according to claim 1 or 2, The waterproof sheet; the reinforcing plate; Equipped with The arrangement member fixing member, wherein the first joint portion is joined by adhesive or welding.

15. The arrangement body fixing tool is provided, The arrangement member fixing member according to claim 14, wherein the second joint portion is joined by adhesive or welding.

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