Arrangement body fixation member and arrangement body fixation structure

Abstract

To provide an arrangement body fixation member and an arrangement body fixation structure that provide preferable workability and water-cut-off performance and facilitate cost reduction in work of fixing an arrangement body to a skeleton.SOLUTION: An arrangement body fixation member of the present invention is a member used for fixing an arrangement body onto a waterproof sheet, and includes: a first metal plate; an arrangement body fixation bolt; a first resin sheet piece larger in an outer diameter than the first metal plate; a second resin sheet piece smaller in an outer diameter than the first metal plate; a second metal plate arranged on a side opposite to the first resin sheet piece, of the second resin sheet piece; and pressing nuts, which are screwed onto the arrangement body fixation bolt and press the second metal plate. The first metal plate and the arrangement body fixation bolt are joined to each other by welding or caulking.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] As demand for higher durability in buildings increases, sheet waterproofing structures in which resin waterproof sheets are laid and installed, such as those described in Patent Document 1, are being adopted for the rooftops, verandas, and other structural components of many buildings.

[0003] Furthermore, Patent Document 2 discloses a structure for installing an arrangement such as a solar panel unit on a building frame. Specifically, Patent Document 2 discloses attaching beams to a flat roof on which a waterproof sheet has been laid via beam members, placing mounting frames between the beams, and arranging solar cell modules across the multiple mounting frames, and fastening the solar cell modules to the mounting frames with mounting hardware.

[0004] When fixing beams to the surface of a flat roof, it is necessary to cut holes in the waterproof sheeting on the roof surface to fix the beams in. Therefore, after fixing the beams, waterproofing treatment is required to ensure that the area around the beams is waterproof.

[0005] Such waterproofing treatments include, for example, a method using a waterproof sheet formed to fit the shape of the bundle and a liquid sealing material filled inside it, or a method using a bundle coated with a waterproofing material.

[0006] However, these methods have issues such as the need for wet work, which requires a large number of construction steps, and the need for components molded into special shapes, which makes it difficult to reduce costs. On the other hand, while resolving these issues, it is also necessary to prevent a decrease in watertightness due to the waterproof sheet being cut out. Therefore, there is a need for a fixing member for an arrangement body that is easy to install, has good watertightness, and is easy to reduce cost. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-053517 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-043018 Summary of the Invention [Problem to be solved by the invention]

[0008] An object of the present invention is to provide an arranging body fixing member and an arranging body fixing structure that are easy to work with and have good watertightness when fixing an arranging body to a building frame, and that can be easily reduced in cost. [Means for solving the problem]

[0009] These objects can be achieved by the present invention as set forth in (1) to (10) below. (1) An arrangement body fixing member used to fix an arrangement body onto a waterproof sheet covering a floor portion of a building body, a first metal plate having a first main surface and a second main surface that are opposite each other, and a plurality of screw holes that connect the first main surface and the second main surface; an arrangement body fixing bolt protruding from the first main surface; a first resin sheet piece having a first through hole through which the aligner fixing bolt is inserted and having an outer diameter larger than that of the first metal plate; a second resin sheet piece having a second through hole through which the aligner fixing bolt is inserted, the second resin sheet piece being disposed on the opposite side of the first resin sheet piece from the first metal plate, and having an outer diameter smaller than that of the first metal plate; a second metal plate having a third through hole through which the aligner fixing bolt is inserted and disposed on the opposite side of the second resin sheet piece from the first resin sheet piece; a pressure nut that is screwed onto the arrangement body fixing bolt and presses the second metal plate toward the second resin sheet piece; Equipped with The locator fixing member is characterized in that the first metal plate and the locator fixing bolt are joined to each other by welding or caulking.

[0010] (2) The arrangement member fixing member according to (1) above, wherein the first resin sheet piece is made of a vinyl chloride resin.

[0011] (3) The arrangement member fixing member according to (1) or (2) above, wherein the second resin sheet piece is made of a vinyl chloride resin.

[0012] (4) The first metal plate has a fourth through hole through which the arranging body fixing bolt is inserted and which has an internal thread, The positioning body fixing bolt has a male thread that screws into the female thread, The aligner fixing member according to any one of (1) to (3) above, wherein the first metal plate and the aligner fixing bolt are welded to each other on the second main surface side.

[0013] (5) The first metal plate has a fourth through hole through which the arrangement body fixing bolt is inserted, the arrangement body fixing bolt has a male thread and a processed portion having a diameter smaller than that of the male thread and inserted into the fourth through hole, The arrangement body fixing member according to any one of (1) to (3) above, wherein the fourth through hole and the processed portion are crimped together.

[0014] (6) When the Young's modulus of the first resin sheet piece measured by the method specified in JIS A 6008:2022 is E1 and the Young's modulus of the second resin sheet piece is E2, The arrangement body fixing member according to any one of (1) to (5) above, wherein Young's modulus E2 is 5% or more and 400% or less of Young's modulus E1.

[0015] (7) The outer diameter of the first resin sheet piece is 150% or more and 500% or less of the outer diameter of the first metal plate, the outer diameter of the second resin sheet piece is 10% or more and 80% or less of the outer diameter of the first metal plate, the outer diameter of the second metal plate is 80% or more and 125% or less of the outer diameter of the second resin sheet piece, The arrangement member fixing member according to any one of (1) to (6) above, wherein the thickness of the second resin sheet piece is 50% or more and 200% or less of the thickness of the first resin sheet piece.

[0016] (8) The arrangement member fixing member according to any one of (1) to (7) above, comprising a plurality of the second resin sheet pieces stacked together.

[0017] (9) The arrangement fixing member according to any one of (1) to (8) above, further comprising a spring washer disposed between the second metal plate and the pressure nut.

[0018] (10) An arrangement body fixing structure in which an arrangement body is fixed on a waterproof sheet covering a floor part of a building body, The arrangement member fixing member according to any one of (1) to (9) above, With the first metal plate positioned so that the second main surface faces the waterproof sheet, a fastening member is inserted into the screw hole and fastened to the floor portion via the waterproof sheet; Equipped with An arrangement fixing structure characterized in that the first resin sheet piece is welded to the waterproof sheet.

[0019] (11) The arrangement body is a solar panel unit including a solar panel portion and a leg portion supporting the solar panel portion, The arrangement fixing structure according to (10) above, wherein the leg portion is fixed to the arrangement fixing bolt. [Effects of the Invention]

[0020] According to the present invention, an arranging body fixing member and an arranging body fixing structure can be obtained that are easy to work with and have good watertightness when fixing an arranging body to a building frame, and that can be easily reduced in cost. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 2 is a partial cross-sectional perspective view showing a solar panel unit fixed to a floor portion of a building frame. [Figure 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 3] 3 is an enlarged view of part B including the arrangement body fixing structure shown in FIG. 2. FIG. [Figure 4] FIG. 4 is an exploded cross-sectional view of the arrangement member fixing structure shown in FIG. 3. [Figure 5] 5 is an exploded perspective view of a portion of the arrangement member fixing member shown in FIG. 4. FIG. [Figure 6] 5 is a partially enlarged view showing the vicinity of the joint between the first metal plate and the arrangement body fixing bolt shown in FIG. 4. FIG. [Figure 7] 7 is a partially enlarged view showing a joint having a different configuration example from the joint shown in FIG. 6. FIG. [Figure 8] FIG. 10 is a view showing the arrangement body fixing bolt and the first metal plate before being subjected to caulking. DETAILED DESCRIPTION OF THE INVENTION

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The aligner fixing member and aligner fixing structure of the present invention will be described in detail below with reference to preferred embodiments shown in the accompanying drawings.

[0023] 1. Solar panel unit First, a solar panel unit will be described as an example of an arrangement that is fixed to a frame by an arrangement-piece fixing member and an arrangement-piece fixing structure according to the embodiment.

[0024] FIG. 1 is a partially sectional perspective view showing a solar panel unit 70 fixed to a floor portion 11 of a frame 10. FIG. 2 is a sectional view taken along line AA in FIG. 1. FIG. 3 is an enlarged view of portion B including the aligner fixing structure 60 shown in FIG. 2. FIG. 4 is an exploded sectional view of the aligner fixing structure 60 shown in FIG. 3. FIG. 5 is an exploded perspective view of a portion of the aligner fixing member 50 shown in FIG. 4. In the following description, the upper side of FIGS. 3 to 5 will be referred to as "top" and the lower side as "bottom." In addition, for the sake of convenience, the dimensional ratios of the various parts in each drawing are different from the actual ratios.

[0025] The skeleton 10 shown in Fig. 1 is the rooftop of a building. However, the skeleton 10 is not limited to this and may be a balcony or roof of a building. The skeleton 10 shown in Fig. 1 has a floor 11 and a wall 12 erected so as to surround the outer edge of the floor 11.

[0026] The floor 11 and the wall 12 are made of flat plates such as autoclaved lightweight aerated concrete (ALC) panels or extruded cement boards (ECP). In this case, these flat plates are joined to purlins (not shown) provided on the skeleton 10. Alternatively, the floor 11 and the wall 12 may be made of reinforced concrete.

[0027] A sheet waterproofing structure 1 is installed on the floor 11 and the wall 12. The sheet waterproofing structure 1 has an insulating layer 40 laid on the floor 11, and a waterproof sheet 30 laid on the wall 12 and the insulating layer 40. The solar panel unit 70 shown in Figure 1 is fixed on the sheet waterproofing structure 1 installed on the floor 11.

[0028] The heat insulating layer 40 is made of, for example, a foam. Examples of materials that can be used to make the foam include resin materials such as thermoplastic resins and thermosetting resins, metal materials, and ceramic materials, and one or a combination of two or more of these materials can be used.

[0029] The waterproof sheet 30 is primarily made of a resin material, such as vinyl chloride resin, ethylene vinyl acetate resin, or thermoplastic elastomer, preferably vinyl chloride resin. This results in a waterproof sheet 30 with particularly good waterproofing and durability. In addition to the resin material, the waterproof sheet 30 may also contain additives such as plasticizers, stabilizers, antioxidants, UV absorbers, processing aids, lubricants, fillers, flame retardants, and colorants. In this specification, the term "primary material" refers to a content of more than 50% by mass. An insulating sheet (not shown) may be placed between the waterproof sheet 30 and the insulating layer 40.

[0030] The thickness of the waterproof sheet 30 is preferably about 0.5 mm or more and 5.0 mm or less, and more preferably about 1.0 mm or more and 2.5 mm or less, which allows the waterproof sheet 30 to have good waterproof properties.

[0031] The solar panel unit 70 shown in Fig. 2 has a flat solar panel portion 71 and legs 72 that support the solar panel portion 71. The legs 72 support the solar panel portion 71 from below, and also fix the solar panel portion 71 to the floor portion 11 via the arrangement body fixing structure 60 shown in Fig. 2.

[0032] 2, four legs 72 are provided for one solar panel unit 71. Each leg 72 is rod-shaped, with an upper end connected to the solar panel unit 71 and a lower end connected to the aligner fixing structure 60.

[0033] 2. Arrangement fixing structure Next, the arrangement member fixing structure 60 will be described.

[0034] The aligner fixing structure 60 shown in Figure 2 is interposed between the solar panel unit 70 and the floor 11, and fixes the solar panel unit 70 to the floor 11. As shown in Figure 3, the aligner fixing structure 60 comprises an aligner fixing member 50 and a fastening member 65. The aligner fixing member 50 is placed on the sheet waterproofing structure 1 installed on the floor 11, and is connected to the legs 72 of the solar panel unit 70. The fastening member 65 has an anchor bolt 62 and an anchor member 64, and fixes the aligner fixing member 50 to the floor 11.

[0035] By using such an arrangement body fixing structure 60, the solar panel unit 70 can be stably fixed to the floor portion 11. Furthermore, by using the arrangement body fixing structure 60, even when the sheet waterproofing structure 1 is installed on the floor portion 11, deterioration in the waterproofing properties of the sheet waterproofing structure 1 can be suppressed.

[0036] 2.1. Fixing member for locating body The positioning body fixing member 50 shown in Figure 3 comprises a first metal plate 61, a positioning body fixing bolt 63, a waterproof sheet piece 35 (first resin sheet piece), a gasket 36 (second resin sheet piece), a gasket 37 (second resin sheet piece), a second metal plate 51, a washer 53, a spring washer 54, a pressure nut 551, a pressure nut 552, a fixing device main body 52, a fixing body 56, a washer 57, and a positioning body fixing nut 58.

[0037] With this type of aligner fixing member 50, the aligner fixing bolts 63 can be erected upward from the sheet waterproofing structure 1. By fixing the legs 72 to the erected aligner fixing bolts 63, the solar panel unit 70 can be fixed to the floor 11. Also, with the aligner fixing member 50, by screwing the pressure nuts 551, 552 onto the aligner fixing bolts 63, the waterproof sheet pieces 35 and gaskets 36, 37 are sandwiched and pressed between the first metal plate 61 and the second metal plate 51. This ensures watertightness between the first metal plate 61 and the second metal plate 51.

[0038] 2.1.1.First metal plate As shown in FIG. 5, the first metal plate 61 is a metal plate having a circular shape in a plan view. In this specification, "plan view" refers to a view from vertically above. As shown in FIG. 5, the first metal plate 61 has a first main surface 611 and a second main surface 612 that are opposite each other, as well as a plurality of screw holes 613 and 614 that connect the first main surface 611 and the second main surface 612. Anchor bolts 62 are inserted into the screw holes 613 and 614. This allows the first metal plate 61 to be fixed to the floor portion 11, as shown in FIG. 3.

[0039] 5 are arranged in the circumferential direction of first metal plate 61. Screw holes 613 and 614 shown in Fig. 5 have different inner diameters. Screw holes 613 and 614 are arranged alternately in the circumferential direction.

[0040] With this configuration, when fixing the aligner fixing member 50 to the floor 11, the screw hole 613 or the screw hole 614 can be selected depending on the size of the anchor bolt 62 to be used. This makes it possible to select the screw hole 613, 614 with an appropriate inner diameter and insert the anchor bolt 62 therethrough without changing the first metal plate 61. As a result, the occurrence of fixing failure can be suppressed.

[0041] The arrangement pattern of screw holes 613, 614 is not limited to the alternating arrangement of one by one as shown in Fig. 5, but may be, for example, an alternating arrangement of multiple by two. Furthermore, all of screw holes 613, 614 may have the same inner diameter.

[0042] The number of screw holes 613, 614 is not particularly limited and is set appropriately depending on the outer diameter and planar shape of the first metal plate 61, but is preferably between 2 and 20, and more preferably between 4 and 12. This allows the arrangement body fixing structure 60 to achieve both watertightness and ease of installation.

[0043] Furthermore, the shape of the first metal plate 61 in plan view may be a perfect circle as shown in FIG. 5, or may be other circular shapes such as an ellipse or an oval, or may be a polygon or other shapes.

[0044] Examples of materials for the first metal plate 61 include various metal materials such as 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 further increases the mechanical strength and durability of the first metal plate 61.

[0045] The first metal plate 61 may also be a resin-coated metal plate having a metal plate made of the above-mentioned metal material and a resin coating covering the surface of the metal plate, which further improves the corrosion resistance of the first metal plate 61 and increases the affinity of the first metal plate 61 with the waterproof sheet piece 35 and the sheet waterproof structure 1.

[0046] Examples of materials constituting the resin coating include vinyl chloride resins such as polyvinyl chloride, polyolefin resins, and ethylene-vinyl acetate copolymers, and although one or more of these can be used in combination, polyvinyl chloride is preferred. Polyvinyl chloride has excellent solvent and heat welding properties, and can more reliably suppress corrosion of metal sheets.

[0047] The outer diameter Φ0 of the first metal plate 61 is not particularly limited, but is preferably 50 mm or more and 300 mm or less, and more preferably 80 mm or more and 200 mm or less. This ensures that the first metal plate 61 is sufficiently large, and allows the first metal plate 61 to be stably fixed to the floor portion 11. Furthermore, it is possible to avoid a decrease in handleability due to the first metal plate 61 being too large.

[0048] In this specification, the term "outer diameter" refers to the maximum length that can be obtained in a planar view.

[0049] The thickness of the first metal plate 61 is not particularly limited, but is preferably 1 mm to 5 mm, and more preferably 2 mm to 4 mm. This provides sufficient mechanical strength to the first metal plate 61. It also reduces the deterioration of handleability due to the weight of the first metal plate 61 and the adverse effect of steps caused by the first metal plate 61 on the waterproof sheet piece 35.

[0050] 2.1.2. Mounting body fixing bolt The arranging body fixing bolt 63 is a bolt with a male thread that is arranged to protrude from the first main surface 611 of the first metal plate 61. Furthermore, as shown in Fig. 5, the arranging body fixing bolt 63 is joined to the center of the first main surface 611. This joint has water-stopping properties. This makes it possible to suppress water leakage at the joint between the first metal plate 61 and the arranging body fixing bolt 63.

[0051] Welding or caulking is used as a method for joining the first metal plate 61 and the arranging body fixing bolt 63. These methods can impart particularly good mechanical strength, durability, and watertightness to the joint.

[0052] 4, a hole 615 is provided in the center of the first main surface 611, connecting the first main surface 611 and the second main surface 612. The locator fixing bolt 63 is joined while inserted into this hole 615. This increases the contact area between the first metal plate 61 and the locator fixing bolt 63, stabilizing the joint. In this case, a fully threaded bolt may be used for the locator fixing bolt 63, but a headed bolt is preferably used. This further stabilizes the joint.

[0053] The holes 615 may be provided as needed, and may be omitted. In this case, it is sufficient that the arrangement body fixing bolts 63 are joined in a state in which they stand on the first main surface 611.

[0054] 4, when the second main surface 612 of the first metal plate 61 is placed on the waterproof sheet 30, the arrangement body fixing bolts 63 are fixed in an upright position facing upward. In this state, the legs 72 are fixed to the arrangement body fixing bolts 63, thereby fixing the solar panel unit 70 to the floor 11.

[0055] The shaft diameter Φ of the aligner fixing bolt 63 is not particularly limited, but is preferably 5 mm or more and 25 mm or less, and more preferably 8 mm or more and 16 mm or less. This sufficiently increases the mechanical strength of the aligner fixing bolt 63. As a result, the solar panel unit 70 can be fixed to the floor 11 more stably.

[0056] The length of the arranging body fixing bolt 63 (the length from the first main surface 611 to the tip) is not particularly limited, but is preferably 30 mm to 300 mm, and more preferably 50 mm to 150 mm. This ensures a length sufficient for fixing various arranging bodies, while preventing deterioration in handleability due to the arranging body fixing bolt 63 being too long.

[0057] FIG. 6 is a partially enlarged view showing the vicinity of a joint 66 between the first metal plate 61 and the arrangement body fixing bolt 63 shown in FIG.

[0058] 6, an external thread 63a is provided on the outer periphery of the aligner fixing bolt 63. An internal thread 615a is provided on the inner periphery of the hole 615. The aligner fixing bolt 63 and the hole 615 are screwed together. This makes it possible to maintain a constant posture of the aligner fixing bolt 63 relative to the first metal plate 61, and makes it easy to realize an aligner fixing structure 60 with little individual variation in the extension direction of the aligner fixing bolt 63.

[0059] The external thread 63a and the internal thread 615a may be provided as needed, and may be omitted.

[0060] In the joint 66 shown in FIG. 6, the lower end of the arrangement body fixing bolt 63 passes through a hole 615 formed in the first metal plate 61 and protrudes slightly below the hole 615.

[0061] 6, the entire circumference of the lower end of the positioning body fixing bolt 63 is welded to the first metal plate 61. As a result, the gap between the positioning body fixing bolt 63 and the hole 615 is filled with a weld bead 67. As a result, the waterproofing of the positioning body fixing bolt 63 is ensured.

[0062] The weld bead 67 is formed so as to straddle the aligner fixing structure 60 and the first metal plate 61. The weld bead 67 may be provided above the first metal plate 61 (on the first main surface 611 side), but as shown in Fig. 6, it is preferably provided below the first metal plate 61 (on the second main surface 612 side). This prevents the weld bead 67 from interfering with the packings 36, 37, etc. As a result, the aligner fixing structure 60 can be provided with good watertight properties.

[0063] FIG. 7 is a partially enlarged view showing a joint 66A, which is a different configuration example from the joint 66 shown in FIG.

[0064] In the joint 66A shown in Fig. 7, the lower end of the aligner fixing bolt 63 is fixed to the hole 615 of the first metal plate 61 by crimping. Crimping refers to, for example, a process in which pressure is applied to the processed portion 63b of the aligner fixing bolt 63 to cause plastic deformation and fasten it to the vicinity of the hole 615 of the first metal plate 61. By crimping, the processed portion 63b is pressed against the vicinity of the hole 615, ensuring watertightness of the joint 66A. Furthermore, by crimping, no heat is applied, and therefore discoloration, deformation, etc. of the first metal plate 61 due to heat can be suppressed.

[0065] There are several types of crimping depending on the processing method, such as kneading crimping, spin crimping, press crimping, and draw crimping.

[0066] Fig. 8 is a diagram showing the locator fixing bolt 63 and the first metal plate 61 before being subjected to crimping. Fig. 8(a) is a side view of the locator fixing bolt 63 before being subjected to crimping. Fig. 8(b) is a bottom view of the locator fixing bolt 63 shown in Fig. 8(a). Fig. 8(c) is a bottom view of the first metal plate 61 before being subjected to crimping. Fig. 8(d) is a cross-sectional view of the first metal plate 61 shown in Fig. 8(c).

[0067] The locator fixing bolt 63 shown in Fig. 8(a) has a male thread 63a on the side and a processed portion 63b on the lower end. The outer diameter of the processed portion 63b is set smaller than the outer diameter of the male thread 63a. When viewed from the extension direction of the locator fixing bolt 63, the processed portion 63b is non-circular (hexagonal in Fig. 8(b)).

[0068] The first metal plate 61 shown in Fig. 8(c) has a through-hole 615. When viewed from the thickness direction of the first metal plate 61, the hole 615 shown in Fig. 8(c) has a non-circular shape (a hexagonal shape in Fig. 8(c)). The size of the hole 615 is set to match the processed portion 63b.

[0069] In addition, the hole 615 is chamfered from below, so that the hole 615 has a chamfered portion 616 that opens downward, as shown in Figures 7 and 8(d).

[0070] In the crimping process, first, the workpiece 63b shown in Figure 8(a) is inserted from above the hole 615 shown in Figure 8(d). At this time, it is preferable that the length of the workpiece 63b is set so that the workpiece 63b protrudes from the bottom end of the hole 615. Furthermore, if the workpiece 63b and the hole 615 are both non-circular, it is possible to prevent the aligner fixing bolt 63 from rotating relative to the first metal plate 61. As a result, even if a high torque is applied to the aligner fixing bolt 63, rotation of the aligner fixing bolt 63 is prevented, and bolt backout can be prevented.

[0071] Next, the processed portion 63b inserted into the hole 615 is plastically deformed using a crimping device or the like. This causes the processed portion 63b to deform so as to expand outward, and the processed portion 63b is pressed against the vicinity of the hole 615. At this time, a portion of the processed portion 63b can also be deformed so as to fill the chamfered portion 616. This makes it less likely that the processed portion 63b will protrude from the lower surface (second main surface 612) of the first metal plate 61 even if it deforms. Furthermore, even if it does protrude, the amount of protrusion can be suppressed. In this manner, the joint 66A is obtained, and an arrangement body fixing member 50 that has excellent installation stability relative to the floor 11 is obtained.

[0072] 2.1.3. Waterproof sheet piece 5, the waterproof sheet piece 35 is a sheet that is circular in plan view. The waterproof sheet piece 35 has a first through hole 355 that penetrates through the thickness direction at the center in plan view. An arrangement body fixing bolt 63 is inserted into the first through hole 355.

[0073] Furthermore, the outer diameter Φ1 of the waterproof sheet piece 35 is larger than the outer diameter Φ0 of the first metal plate 61. As a result, when the arranging body fixing bolt 63 is inserted through the first through-hole 355, the waterproof sheet piece 35 covers the entire first metal plate 61 and protrudes outside it. As a result, the waterproof sheet piece 35 and the waterproof sheet 30 can be overlapped on the outside of the first metal plate 61. In this way, by joining the waterproof sheet piece 35 and the waterproof sheet 30, watertightness can be ensured at the outer edge of the arranging body fixing member 50. As a result, water leakage through, for example, the gap between the waterproof sheet piece 35 and the first metal plate 61 or the gap between the first metal plate 61 and the waterproof sheet 30 can be suppressed. Note that in this specification, "water leakage" refers to the intrusion of rainwater or the like into the underside of the first metal plate 61.

[0074] The outer diameter Φ1 of the waterproof sheet piece 35 is preferably 150% or more and 500% or less of the outer diameter Φ0 of the first metal plate 61, and more preferably 180% or more and 300% or less. This ensures that the area of ​​the waterproof sheet piece 35 that extends outside the first metal plate 61 is sufficiently large, ensuring sufficient watertightness. Furthermore, since the waterproof sheet piece 35 can be prevented from becoming too large, it is possible to prevent gaps from occurring between the waterproof sheet piece 35 and the waterproof sheet 30, while ensuring good workability when welding the waterproof sheet piece 35 to the waterproof sheet 30, for example.

[0075] If the ratio of the outer diameter Φ1 to the outer diameter Φ0 is below the lower limit, the area where the waterproof sheet piece 35 and the waterproof sheet 30 are welded together becomes smaller, which may reduce the watertightness of the welded portion depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if the ratio of the outer diameter Φ1 to the outer diameter Φ0 exceeds the upper limit, workability may be reduced, an unintended gap may occur between the waterproof sheet piece 35 and the waterproof sheet 30, and the watertightness of the welded portion may be reduced depending on the environment to which the aligner fixing structure 60 is exposed.

[0076] The material of the waterproof sheet piece 35 is not particularly limited, but is preferably made primarily of a vinyl chloride resin such as polyvinyl chloride, which provides the waterproof sheet piece 35 with excellent water-stopping properties and durability.

[0077] 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, but 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.

[0078] The constituent material of the waterproof sheet piece 35 may be different from the constituent material of the waterproof sheet 30, for example, may be appropriately selected from the constituent materials of the waterproof sheet 30, but is preferably the same material as the constituent material of the waterproof sheet 30. This allows for good welding when welding the waterproof sheet piece 35 to the waterproof sheet 30.

[0079] The thickness t1 of the waterproof sheet piece 35 is not particularly limited, but is preferably approximately 0.5 mm to 5 mm, more preferably approximately 0.7 mm to 3 mm, and even more preferably approximately 1 mm to 2 mm. This provides the waterproof sheet piece 35 with appropriate resilience. The resilience of the waterproof sheet piece 35 provides excellent watertightness between the waterproof sheet piece 35 and the first metal plate 61 and between the waterproof sheet piece 35 and the gasket 36. Furthermore, a waterproof sheet piece 35 with a thickness t1 within the above range possesses both shape conformability and durability. This allows the waterproof sheet piece 35 to conform well to the unevenness caused by the first metal plate 61 and is less susceptible to damage.

[0080] Furthermore, the shape of the waterproof sheet piece 35 in plan view may be a perfect circle as shown in FIG. 5, or may be other circular shapes such as an ellipse or an oval, or may be a polygon or other shape.

[0081] The waterproof sheet piece 35 may be composed of a single layer of resin sheet, or may have a multilayer structure in which one or more resin sheets or other layers are laminated in the thickness direction. Examples of other layers include a fiber layer (fiber sheet). Examples of multilayer structures include a fiber layer sandwiched between two layers of resin sheets.

[0082] Examples of fiber layers include woven fabrics, nonwoven fabrics, and nets formed with multiple lattices of warp and weft threads. Fibers contained in the fiber layer include resin fibers, glass fibers, and carbon fibers. The inclusion of such fiber layers can improve the mechanical strength, such as tear strength and tensile strength, of the waterproof sheet piece 35, as well as durability, such as resistance to repeated fatigue. Furthermore, adding a fiber layer tends to increase the Young's modulus. Furthermore, fiber layers containing glass fibers tend to have a higher Young's modulus than fiber layers containing resin fibers.

[0083] 2.1.4.Packing 5, the packings 36 and 37 are each a sheet having a circular shape in a plan view. The packings 36 and 37 have second through holes 365 and 375 that penetrate through the thickness direction at the center in a plan view. The arrangement body fixing bolt 63 is inserted into the second through holes 365 and 375.

[0084] The packings 36 and 37 are placed on top of each other on the waterproof sheet piece 35 (on the opposite side of the waterproof sheet piece 35 from the first metal plate 61). This provides waterproofing between the packings 36 and 37.

[0085] The outer diameters Φ2 and Φ3 of the packings 36 and 37 are smaller than that of the first metal plate 61. This allows the first metal plate 61 and the second metal plate 51 to press the entire packings 36 and 37 uniformly.

[0086] The outer diameter Φ2 of the packing 36 is preferably 10% to 80% of the outer diameter Φ0 of the first metal plate 61, more preferably 20% to 70%, and even more preferably 30% to 60%. This ensures a sufficiently wide area for water blocking by the packing 36 while preventing the creation of any portions that do not contribute to water blocking.

[0087] If the ratio of the outer diameter Φ2 to the outer diameter Φ0 is below the lower limit, the outer diameter Φ2 becomes too small relatively, which may reduce the watertightness between the packing 36 and the waterproof sheet piece 35 and between the waterproof sheet piece 35 and the first metal plate 61 depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if the ratio of the outer diameter Φ2 to the outer diameter Φ0 exceeds the upper limit, the outer diameter Φ2 becomes too large relatively, which may reduce workability depending on the environment to which the aligner fixing structure 60 is exposed, or may result in an unintended gap between the packing 36 and the waterproof sheet piece 35, which may reduce the watertightness depending on the environment to which the aligner fixing structure 60 is exposed.

[0088] The outer diameter Φ3 of the packing 37 is preferably approximately the same as the outer diameter Φ2 of the packing 36. Specifically, the outer diameter Φ3 of the packing 37 is preferably 80% to 125% of the outer diameter Φ2 of the packing 36, and more preferably 90% to 115%. This allows substantially the entire packings 36, 37 to be pressed by the second metal plate 51, thereby ensuring good watertightness using substantially the entire packings 36, 37 and preventing the creation of portions that do not contribute to watertightness. Note that gaps are likely to form in the portions that are not pressed (portions that do not contribute to watertightness), and rainwater, foreign matter, and the like are likely to accumulate. Therefore, from this perspective as well, the outer diameter Φ3 of the packing 37 is preferably within the above range.

[0089] The packings 36 and 37 may be made of different materials, but are preferably made of the same material, which allows for good watertightness between the packings 36 and 37.

[0090] The packings 36 and 37 may be made of, for example, a resin material, an elastomer material, or a rubber material.

[0091] Examples of resin materials include low-density polyethylene (LDPE), high-density polyethylene (HDPE), polyethylene terephthalate, polypropylene, ethylene-vinyl acetate copolymer (EVA), polyamide, acrylic resin, vinyl chloride resin, vinylidene chloride resin, polyvinyl alcohol, polystyrene, fluorine-based resin, etc. Furthermore, the resin material may be a polymer blend or polymer alloy containing two or more of these.

[0092] Examples of elastomer materials include olefin-based elastomers such as ethylene-propylene copolymer (EPM) and ethylene-propylene-diene copolymer (EPDM), styrene-based elastomers such as styrene-butadiene copolymer (SBS) and styrene-ethylene-butadiene copolymer (SEBS), silicone-based elastomers, nitrile-based elastomers, butadiene-based elastomers, urethane-based elastomers, nylon-based elastomers, ester-based elastomers, and fluorine-based elastomers.

[0093] Examples of rubber materials include polyisobutylene, polyisoprene, chloroprene rubber, butyl rubber, silicone rubber, fluororubber, acrylic rubber, urethane rubber, ethylene propylene rubber, butadiene rubber, acrylonitrile butadiene rubber, and styrene butadiene rubber.

[0094] Among these, vinyl chloride resin is preferably used as the main material for the packings 36 and 37. This allows the packings 36 and 37 to have excellent water-stopping properties and durability.

[0095] The material of the packing 36 may be different from the material of the waterproof sheet piece 35, but is preferably the same material. This allows for good water-stopping properties to be achieved between the packing 36 and the waterproof sheet piece 35.

[0096] The thickness t2 of the packing 36 is preferably 50% to 200% of the thickness t1 of the waterproof sheet piece 35, and more preferably 80% to 150%. This optimizes the resilience of each of the packing 36 and the waterproof sheet piece 35. As a result, good water-stopping properties can be achieved between the packing 36 and the waterproof sheet piece 35.

[0097] If the ratio of thickness t2 to thickness t1 is below the lower limit, thickness t2 is too thin compared to thickness t1, which means that the resilience of the packing 36 is insufficient, and water-stopping properties may be reduced depending on the thickness of the packing 36 and the environment to which the aligner fixing structure 60 is exposed. On the other hand, if the ratio of thickness t2 to thickness t1 is above the upper limit, thickness t2 is too thick compared to thickness t1, which means that the shape-following ability of the packing 36 is reduced, and water-stopping properties may be reduced depending on the thickness of the packing 36 and the environment to which the aligner fixing structure 60 is exposed.

[0098] The thickness t3 of the packing 37 is preferably 50% to 200% of the thickness t2 of the packing 36, and more preferably 80% to 150%. This optimizes the resilience of each of the packings 36 and 37. As a result, good watertightness can be achieved between the packings 36 and 37.

[0099] The thicknesses t2 and t3 of the packings 36 and 37 are preferably about 0.5 mm to 5 mm, more preferably about 0.7 mm to 3 mm, and even more preferably about 1 mm to 2 mm. This provides the packings 36 and 37 with appropriate resilience. Furthermore, packings 36 and 37 with thicknesses within the above ranges have good durability. This results in packings 36 and 37 that are less likely to be damaged when sandwiched between the first metal plate 61 and the second metal plate 51.

[0100] Furthermore, the planar shape of each of the packings 36 and 37 may be a perfect circle as shown in FIG. 5, or may be other circular shapes such as an ellipse or an oval, or may be a polygon or other shapes.

[0101] Here, the Young's modulus of the waterproof sheet piece 35 (first resin sheet piece) is E1, the Young's modulus of the packing 36 (second resin sheet piece) is E2, and the Young's modulus of the packing 37 (third resin sheet piece) is E3. In this case, the Young's modulus E1 is preferably 10 MPa or more and 140 MPa or less, more preferably 20 MPa or more and 130 MPa or less, and even more preferably 30 MPa or more and 120 MPa or less.

[0102] This configuration optimizes the Young's modulus E1 of the waterproof sheet piece 35, resulting in a waterproof sheet piece 35 with appropriate flexibility. This waterproof sheet piece 35 has both shape conformability and durability. This results in a waterproof sheet piece 35 that conforms well to the unevenness caused by the first metal plate 61 and is less likely to be damaged.

[0103] If Young's modulus E1 is below the lower limit, the flexibility of the waterproof sheet piece 35 becomes too high, which reduces durability (resistance to deformation) and may reduce water-stopping properties depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if Young's modulus E1 is above the upper limit, the flexibility of the waterproof sheet piece 35 becomes too low, which reduces shape-following ability and may reduce water-stopping properties depending on the environment to which the aligner fixing structure 60 is exposed.

[0104] Each of Young's moduli E2 and E3 is preferably 5 MPa or more and 200 MPa or less, more preferably 30 MPa or more and 100 MPa or less. Each of Young's moduli E2 and E3 is preferably 5% or more and 400% or less, more preferably 10% or more and 80% or less, or 120% or more and 300% or less, of Young's moduli E1.

[0105] With this configuration, the Young's moduli E2 and E3 of the packings 36 and 37 are optimized relative to the Young's modulus E1, resulting in packings 36 and 37 with appropriate flexibility. Such packings 36 and 37 have both shape conformability and durability. This allows the packings 36 and 37 to conform well to the deformation of the waterproof sheet piece 35 and to be less susceptible to damage.

[0106] If Young's moduli E2 and E3 are below the lower limit values, the flexibility of the packings 36 and 37 will be too high, reducing durability (resistance to deformation) and possibly reducing watertightness depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if Young's moduli E2 and E3 are above the upper limit values, the flexibility of the packings 36 and 37 will be too low, reducing shape conformability and possibly reducing watertightness depending on the environment to which the aligner fixing structure 60 is exposed. Furthermore, if Young's moduli E2 and E3 are in a range close to 100% of Young's modulus E1 (a range of more than 80% and less than 120%), the balance between Young's modulus E1 and Young's moduli E2 and E3 will be poor, potentially reducing watertightness.

[0107] Furthermore, the Young's modulus E3 of the packing 37 is preferably 60% to 150% of the Young's modulus E2 of the packing 36, more preferably 80% to 125%, and even more preferably 90% to 110%. This ensures that the flexibility of both is roughly the same, allowing the pressure received from the second metal plate 51 to be uniformly distributed within the surfaces of the packings 36 and 37. As a result, gaps are less likely to form between the packing 36 and the waterproof sheet piece 35, thereby particularly improving the watertightness.

[0108] The Young's modulus E1 of waterproof sheet piece 35, the Young's modulus E2 of packing 36, and the Young's modulus E3 of packing 37 are each the tensile modulus E calculated from the tensile load and elongation (strain) measured using 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 piece 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 piece 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 that 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 pieces used are pieces cut out in three longitudinal and three transverse directions from each of the rolls used to produce the waterproof sheet piece 35 and the packings 36 and 37. The tensile modulus E is calculated for a total of six test pieces cut out from each roll, and the average values ​​are designated as Young's moduli E1, E2, and E3.

[0109] Furthermore, the packing 37 may be provided as needed and may be omitted. Furthermore, another packing similar to the packing 37 may be further added between the packing 37 and the second metal plate 51. That is, the number of packings may be one, or two as in this embodiment, or may be three or more. When there are two or more packings (multiple packings), the total thickness of the packings becomes sufficiently thick, thereby particularly improving the watertightness. On the other hand, from the viewpoint of evenly pressing the area near the arrangement body fixing bolt 63 to ensure good watertightness and not unnecessarily increasing the number of paths for infiltration of rainwater, etc., it is preferable that the number of packings is two.

[0110] 2.1.5.Second metal plate 5, the second metal plate 51 is a metal plate having a circular shape in a plan view. The second metal plate 51 has a third through hole 515 that penetrates through the thickness direction at the center in a plan view. An arrangement body fixing bolt 63 is inserted into the third through hole 515.

[0111] The second metal plate 51 is disposed on the packing 37 (on the opposite side of the packing 37 from the waterproof sheet piece 35). The second metal plate 51 is pressed downward by pressure nuts 551, 552 that screw onto the arrangement body fixing bolt 63. This allows the waterproof sheet piece 35 and the packings 36, 37 to be sandwiched between the first metal plate 61 and the second metal plate 51. As a result, watertightness between the first metal plate 61 and the second metal plate 51 can be ensured.

[0112] The shape of the second metal plate 51 in plan view may be a perfect circle as shown in FIG. 5, or may be other circular shapes such as an ellipse or an oval, or may be a polygon or other shapes.

[0113] Examples of materials for the second metal plate 51 include various metal materials such as 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 further increases the mechanical strength and durability of the second metal plate 51.

[0114] The second metal plate 51 may be a resin-coated metal plate having a metal plate made of the above-mentioned metal material and a resin coating covering the surface of the metal plate, thereby further improving the corrosion resistance of the second metal plate 51 and increasing the affinity between the second metal plate 51 and the packing 37.

[0115] The outer diameter Φ4 of the second metal plate 51 is preferably smaller than the outer diameter Φ0 of the first metal plate 61, and is more preferably 10% to 80% of the outer diameter Φ0 of the first metal plate 61, even more preferably 20% to 70% and particularly preferably 30% to 60%. This allows pressure to be applied in a concentrated manner around the arrangement body fixing bolt 63, which should be waterproofed. As a result, good waterproofing can be ensured near the first through hole 355 of the waterproof sheet piece 35 and near the second through holes 365, 375 of the packings 36, 37.

[0116] The outer diameter Φ4 of the second metal plate 51 is preferably 80% to 125% of the outer diameter Φ2 of the packing 36, and more preferably 90% to 115%. This allows substantially the entire packings 36, 37 to be pressed by the second metal plate 51, thereby ensuring good watertightness using substantially the entire packings 36, 37 and preventing the creation of portions that do not contribute to watertightness. Note that gaps are likely to form in the portions that are not pressed (portions that do not contribute to watertightness), and rainwater, foreign matter, and the like are likely to accumulate. Therefore, from this perspective as well, the outer diameter Φ4 of the second metal plate 51 is preferably within the above range.

[0117] If the ratio of the outer diameter Φ4 to the outer diameter Φ2 is below the lower limit, portions of the packings 36, 37 will not contribute to watertightness, making it easier for rainwater and foreign matter to accumulate, which could result in an unintended decrease in watertightness depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if the ratio of the outer diameter Φ4 to the outer diameter Φ2 exceeds the upper limit, a gap will be created between the second metal plate 51 and the packings 36, 37, which, as above, could result in an unintended decrease in watertightness depending on the environment to which the aligner fixing structure 60 is exposed.

[0118] The thickness of the second metal plate 51 is not particularly limited, but is preferably 1 mm to 5 mm, and more preferably 2 mm to 4 mm. This provides sufficient mechanical strength to the second metal plate 51. Furthermore, it is possible to prevent the second metal plate 51 from becoming heavy and making it difficult to handle.

[0119] 2.1.6. Washers and spring washers 3 to 5 are inserted, in this order, into the positioning body fixing bolt 63 which is inserted into the third through-hole 515 of the second metal plate 51. The washer 53 is interposed between the pressure nut 551 and the second metal plate 51, allowing for a wider range of pressure. The spring washer 54 prevents the pressure nut 551 from loosening over time. These may be provided as needed, and either one or both may be omitted.

[0120] 2.1.7.Pressure Nut The press nuts 551 and 552 shown in FIGS. 3 to 5 are threaded, in this order, onto the arranging body fixing bolt 63, through which the washer 53 and spring washer 54 are inserted. The engagement of the press nuts 551 and 552 with the arranging body fixing bolt 63 presses the second metal plate 51 downward via the spring washer 54 and washer 53. Using two press nuts can prevent the press nuts 551 and 552 from loosening over time. The press nut 552 may be omitted if necessary. Three or more press nuts may be used. Locking nuts may be used for the press nuts 551 and 552. The press nuts 551 and 552 may be covered with resin covers, such as heat-shrink tubing, if necessary. This prevents the press nuts 551 and 552 from unintentionally loosening and from rusting.

[0121] The tightening torque T of the pressure nuts 551, 552 is not particularly limited, but is preferably set according to the shaft diameter Φ of the aligner fixing bolt 63. Specifically, the ratio T / Φ of the tightening torque T [N·m] to the shaft diameter Φ [mm] of the aligner fixing bolt 63 is preferably 0.60 or more and 4.00 or less, and more preferably 1.00 or more and 3.00 or less. This makes it possible to optimize the tightening torque T relative to the shaft diameter Φ. As a result, a pressing force appropriate for imparting watertightness near the aligner fixing bolt 63 can be uniformly applied by tightening the pressure nuts 551, 552. This makes it possible to realize an aligner fixing structure 60 with particularly good watertightness.

[0122] If the ratio T / Φ is below the lower limit, the tightening torque T will be insufficient relative to the shaft diameter Φ, and sufficient pressing force cannot be applied to the second metal plate 51, which may result in a decrease in watertightness depending on the environment to which the aligner fixing structure 60 is exposed. On the other hand, if the ratio T / Φ is above the upper limit, the tightening torque T will be excessive relative to the shaft diameter Φ, which may result in a decrease in the durability of the aligner fixing structure 60, which may result in a decrease in watertightness, and may also result in a decrease in workability.

[0123] 2.1.8. Fixture body Fixture main body 52 shown in Fig. 4 has bottom portion 521 and side portion 522. Bottom portion 521 is, for example, a plate-like portion having a rectangular shape in plan view, and has hole 523 penetrating the center in the thickness direction. Side portion 522 is a portion that rises upward from the edge of bottom portion 521.

[0124] The bottom portion 521 is placed on the second metal plate 51. The bottom portion 521 has a hole 523 through which an arrangement body fixing bolt 63 is inserted.

[0125] The side portion 522 is connected to the leg portion 72 of the solar panel unit 70. Specifically, the side portion 522 and the leg portion 72 shown in FIG. 3 are arranged so as to overlap each other. A bolt 74 is inserted through both of them. A nut 73 is screwed onto the bolt 74 and tightened, thereby connecting the side portion 522 and the leg portion 72.

[0126] The configuration of fixture body 52 is not limited to the above configuration and may be selected appropriately depending on the type of arrangement body. Also, fixture body 52 may be omitted depending on the fixing method.

[0127] 2.1.9. Fixture, washer and locator fixing nut 3 and 4 has a top portion 561, side portions 562, and a bottom portion 563. The top portion 561 is, for example, a plate-like portion having a rectangular shape in a plan view, and has a hole 564 penetrating through the center in the thickness direction. The side portions 562 are portions that extend downward from the edges of the top portion 561. The bottom portion 563 is a portion that extends from the lower end of the side portions 562 in parallel to the top portion 561.

[0128] The bottom 563 rests on the bottom 521 of the fixture main body 52. ​​The top 561 has a hole 564 through which an aligner fixing bolt 63 is inserted and which protrudes upward. A washer 57 and an aligner fixing nut 58 are inserted, in this order, into the protruding portion of the aligner fixing bolt 63. The washer 57 is interposed between the aligner fixing nut 58 and the fixture 56, allowing for a wider range of pressure to be applied to the fixture 56. When the aligner fixing nut 58 is threaded onto the aligner fixing bolt 63 and tightened, the fixture 56 can be pressed downward via the washer 57. This allows the fixture main body 52, which is sandwiched between the fixture 56 and the second metal plate 51, to be fixed to the aligner fixing bolt 63. As a result, the legs 72 of the solar panel unit 70 can be fixed to the floor 11 via the aligner fixing member 50.

[0129] Furthermore, by pressing the fixing body 56 downward, it is possible to press the area outside the arrangement body fixing bolt 63. This improves the watertightness outside the area pressed by the pressure nuts 551, 552. As a result, it is possible to realize an arrangement body fixing member 50 that can ensure even better watertightness.

[0130] The configuration of the fixing body 56 is not limited to the above configuration and can be selected appropriately depending on the type of mounting body. Depending on the mounting method, the fixing body 56 may be omitted, or the fixing body 56 and the fixture body 52 may be integrated. A locking nut may be used for the mounting body fixing nut 58. The tip of the mounting body fixing bolt 63 and the mounting body fixing nut 58 may be covered with a resin cap made of heat-shrink tubing or the like, as needed. This prevents the mounting body fixing nut 58 from being unintentionally loosened or from rusting.

[0131] 2.2. Fastening members The fastening member 65 shown in FIGS. 3 and 4 includes the anchor bolt 62 and the anchor member 64 as described above.

[0132] The anchor member 64 is embedded in the floor portion 11. The anchor member 64 is cylindrical and has an internal thread on its inner circumferential surface. The anchor bolt 62 is inserted into the screw holes 613, 614 of the first metal plate 61. The anchor bolt 62 also penetrates the waterproof sheet 30 and the heat insulating layer 40 and is screwed into the anchor member 64 embedded in the floor portion 11. The first metal plate 61 is fixed to the floor portion 11 by tightening the anchor bolt 62 against the anchor member 64. This allows the solar panel unit 70 to be fixed to the floor portion 11 via the aligner fixing member 50.

[0133] The configuration of the fastening member 65 is not limited to the above configuration. For example, the anchor member 64 may be provided as needed and may be omitted. In that case, the anchor bolt 62 or various fixing screws or the like that replace the anchor bolt 62 may be screwed into the floor portion 11.

[0134] 3. Effects of the above embodiment The mounting body fixing member 50 of the above embodiment is a mounting body fixing member used to fix a solar panel unit 70 (mounting body) onto a waterproof sheet 30 covering the floor portion 11 of the main body 10, and comprises a first metal plate 61, a mounting body fixing bolt 63, a waterproof sheet piece 35 (first resin sheet piece), gaskets 36, 37 (second resin sheet piece), a second metal plate 51, and pressure nuts 551, 552.

[0135] The first metal plate 61 has a first main surface 611 and a second main surface 612, which are opposite surfaces, and a plurality of screw holes 613, 614 connecting the first main surface 611 and the second main surface 612. The locator fixing bolt 63 protrudes from the first main surface 611. The waterproof sheet piece 35 has a first through hole 355 through which the locator fixing bolt 63 is inserted, and has an outer diameter Φ1 larger than that of the first metal plate 61. The packings 36, 37 have second through holes 365, 375 through which the locator fixing bolt 63 is inserted, and are arranged on the waterproof sheet piece 35 (on the opposite side of the waterproof sheet piece 35 from the first metal plate 61), and have outer diameters Φ2, Φ3 smaller than those of the first metal plate 61. The second metal plate 51 has a third through hole 515 through which the locator fixing bolt 63 is inserted, and is arranged on the packings 36, 37 (on the opposite side of the packing 37 from the waterproof sheet piece 35). The pressure nuts 551 and 552 are screwed onto the arrangement body fixing bolts 63 and press the second metal plate 51 towards the packings 36 and 37 .

[0136] The first metal plate 61 and the arranging body fixing bolt 63 are joined to each other by welding or caulking.

[0137] With this configuration, in the process of fixing the solar panel unit 70 (mounting body) to the frame 10, the solar panel unit 70 can be fixed without compromising the waterproofing properties of the waterproof sheet 30, and since the infiltration of rainwater and the like is effectively suppressed between the constituent members, it is possible to realize an mounting body fixing member 50 with good water-stopping properties. Furthermore, since this mounting body fixing member 50 has a simple structure in which multiple members are inserted into the mounting body fixing bolts 63 and the pressure nuts 551, 552 are tightened, it is easy to install and can easily be made at low cost.

[0138] In the arrangement member fixing member 50 according to the embodiment, the waterproof sheet piece 35 (first resin sheet piece) is mainly made of vinyl chloride resin.

[0139] With this configuration, the waterproof sheet piece 35 has particularly good water-stopping properties and durability.

[0140] In addition, in the aligner fixing member 50 according to the embodiment, the packing 36 (second resin sheet piece) is mainly made of vinyl chloride resin. With this configuration, the packing 36 has particularly good water-stopping properties and durability.

[0141] Furthermore, in the aligner fixing member 50 according to the embodiment, the first metal plate 61 has a hole 615 (fourth through hole). The hole 615 has an aligner fixing bolt 63 inserted therethrough and has an internal thread 615a. The aligner fixing bolt 63 further has an external thread 63a that screws into the internal thread 615a. The first metal plate 61 and the aligner fixing bolt 63 are welded to each other on the second main surface 612 side of the first metal plate 61.

[0142] With this configuration, the first metal plate 61 and the locator fixing bolt 63 are threadedly engaged with each other, so the position of the locator fixing bolt 63 can be maintained constant. Also, by welding on the second main surface 612 side, it is possible to prevent the weld bead 67 from interfering with the packings 36, 37, etc. As a result, it is possible to achieve an locator fixing structure 60 with excellent watertight properties.

[0143] Furthermore, in the aligner fixing member 50 according to the embodiment, the first metal plate 61 has a hole 615 (fourth through hole). An aligner fixing bolt 63 is inserted through the hole 615. The aligner fixing bolt 63 further has a male thread 63a and a processed portion 63b that has a smaller diameter than the male thread 63a and is inserted into the hole 615. The hole 615 and the processed portion 63b are caulked together.

[0144] According to this configuration, heat is not applied during the crimping process, and therefore discoloration, deformation, etc. of the first metal plate 61 due to heat can be suppressed.

[0145] Furthermore, in the positioning body fixing member 50 according to the above embodiment, when the Young's modulus of the waterproof sheet piece 35 (first resin sheet piece) measured by the method specified in JIS A 6008:2022 is E1 and the Young's modulus of the gasket 36 (second resin sheet piece) is E2, the Young's modulus E2 is 5% or more and 400% or less of the Young's modulus E1.

[0146] With this configuration, the Young's modulus E2 of the packing 36 is optimized relative to the Young's modulus E1, resulting in a packing 36 with appropriate flexibility. This packing 36 has both shape conformability and durability. This allows the packing 36 to conform well to the deformation of the waterproof sheet piece 35 and is less susceptible to damage.

[0147] Furthermore, in the arrangement member fixing member 50 according to the embodiment, the outer diameter Φ1 of the waterproof sheet piece 35 (first resin sheet piece) is 150% or more and 500% or less of the outer diameter Φ0 of the first metal plate 61. Furthermore, the outer diameter Φ2 of the packing 36 (second resin sheet piece) is 10% or more and 80% or less of the outer diameter Φ0 of the first metal plate 61. Furthermore, the outer diameter Φ4 of the second metal plate 51 is 80% or more and 125% or less of the outer diameter Φ2 of the packing 36. Furthermore, the thickness t2 of the packing 36 is 50% or more and 200% or less of the thickness t1 of the waterproof sheet piece 35.

[0148] With this configuration, an arrangement member fixing structure 60 with good workability, watertightness, and durability can be obtained.

[0149] Moreover, the aligner fixing member 50 according to the embodiment includes a plurality of stacked packings 36, 37 (second resin sheet pieces).

[0150] With this configuration, the total thickness of the packing is sufficiently large, thereby making it possible to particularly improve the watertightness.

[0151] Furthermore, the arrangement body fixing member 50 according to the embodiment includes a spring washer 54 arranged between the second metal plate 51 and the pressure nuts 551, 552. With this configuration, the pressure nuts 551 and 552 can be prevented from loosening over time.

[0152] Furthermore, the arranging body fixing structure 60 according to the embodiment is an arranging body fixing structure in which a solar panel unit 70 (arranging body) is fixed onto a waterproof sheet 30 covering a floor portion 11 of a frame 10, and comprises an arranging body fixing member 50 according to the embodiment and a fastening member 65. The fastening member 65 is inserted into the screw holes 613, 614 with the first metal plate 61 placed so that the second main surface 612 faces the waterproof sheet 30, and is fastened to the floor portion 11 via the waterproof sheet 30. Then, a waterproof sheet piece 35 (first resin sheet piece) is welded to the waterproof sheet 30.

[0153] With this configuration, in the process of fixing the solar panel unit 70 (mounting body) to the frame 10, the solar panel unit 70 can be fixed without impairing the waterproofing properties of the waterproof sheet 30, and since the infiltration of rainwater and the like is effectively suppressed between the members that make up the mounting body fixing member 50, it is possible to realize a mounting body fixing structure 60 with good water-stopping properties. Furthermore, since this mounting body fixing structure 60 has a simple structure in which multiple members are inserted into the mounting body fixing bolts 63 and the pressure nuts 551, 552 are tightened, it is easy to install and can easily be made at low cost.

[0154] In the arranging body fixing structure 60 according to the embodiment, the arranging body is a solar panel unit 70 including a solar panel portion 71 and legs 72 that support the solar panel portion 71. The legs 72 are fixed to the arranging body fixing bolts 63.

[0155] With this configuration, the solar panel unit 70 can be fixed to the floor portion 11 without impairing the waterproof properties of the waterproof sheet 30.

[0156] Although the aligner fixing member and aligner fixing structure of the present invention have been described above, the present invention is not limited to these.

[0157] For example, the aligner fixing member and aligner fixing structure of the present invention may be such that each component of the above-described embodiment is replaced with any component that can perform a similar function, or such that any component is added to the above-described embodiment. [Example]

[0158] Next, specific examples of the present invention will be described, but the present invention is not limited to the descriptions of these examples.

[0159] 4. Fabrication of the locator fixing structure Using the locator fixing members and other materials configured as shown in Tables 1 to 4, the locator fixing members were fixed to the floor portion 11, and the pressure nuts 551, 552 were tightened with the tightening torques shown in Tables 1 to 4, thereby obtaining the locator fixing structures of each number. Note that the locator fixing structures of each number are configured by adding an insulating sheet placed between the waterproof sheet 30 and the heat insulating layer 40 to the locator fixing structure 60 shown in Figure 3. Also, in Tables 1 to 4, the gasket 36 shown in Figure 3 is referred to as the "lower gasket" and the gasket 37 is referred to as the "upper gasket."

[0160] The constituent materials of the parts that make up the placement body fixing structure are as follows: Second metal plate: Stainless steel SUS316L (thickness 3mm) Packing: Polyvinyl chloride resin (PVC) or fluorine elastomer (FFKM) Waterproof sheet: Polyvinyl chloride (PVC) First metal plate: Stainless steel SUS316L (thickness 3mm) Waterproof sheet: Polyvinyl chloride resin (PVC) (thickness 2 mm) Insulation sheet: Glass cloth sheet (thickness 0.3 mm) Insulation layer: Polystyrene foam (PSF) (thickness 130 mm) Floor: structural plywood (24mm thick) Fastening parts: 4 fixing screws (length 170 mm)

[0161] In Tables 1 to 4, among the arrangement member fixing structures of each number, those that correspond to the present invention are designated as "Examples," and those that do not correspond to the present invention are designated as "Comparative Examples."

[0162] For packings 36 and 37, the Young's modulus was adjusted by changing the amount of plasticizer added with the PVC. As the amount of plasticizer increases, the Young's modulus tends to decrease. Furthermore, for waterproof sheet piece 35, the Young's modulus was adjusted by changing the amount of plasticizer added with the PVC and by whether or not a fiber layer was included.

[0163] 5. Evaluation of the placement body fixing structure The locator fixing structures of the examples and comparative examples were evaluated as follows.

[0164] 5.1. Structural simplicity and ease of construction The structural simplicity and ease of construction of each locator fixing structure were evaluated based on the following evaluation criteria. The evaluation results are shown in Tables 1 to 4.

[0165] ○: No special molding is used and only dry work is required (simple structure and good workability) ×: Uses a special molded body or involves wet work (poor structural simplicity or workability)

[0166] 5.2.Watertightness Tests were conducted to evaluate the watertightness of each fixing structure.

[0167] 5.2.1. Preparation of specimen First, 10 specimens were prepared for each aligner fixing structure. Specifically, when each aligner fixing structure was viewed from above, a 300 mm square area was cut out with the aligner fixing bolt 63 at the center. The members cut out in this way were used as specimens.

[0168] 5.2.2. Load test Next, the following load test was carried out on the test specimen.

[0169] First, the test specimen was set in the hydraulic servo fatigue testing machine, with the test specimen positioned such that the mounting bolt 63 was facing vertically upward.

[0170] Next, a load test was conducted in which a load was applied in the vertical direction to the subject's aligner fixing bolt 63. The vertical load test was a test in which a tensile load of 3100 N and a compressive load of 4000 N were applied alternately 13000 times at a cycle of 1 Hz.

[0171] Next, a load test was conducted in which a load was applied in the shear direction to the locator fixing bolt 63 of the specimen. The shear load test was a test in which a minimum load of 200 N and a maximum load of 900 N were applied alternately in one direction perpendicular to the locator fixing bolt 63 at a cycle of 1 Hz, 13,000 times.

[0172] 5.2.3.Watertightness test Next, the following watertightness test was carried out on each of the 10 specimens that had undergone the load test.

[0173] First, the test subject was placed on the bottom of the water tank. The test subject was placed in a position where the mounting bolt 63 was facing vertically upward.

[0174] Next, water was poured into the tank and the test specimen was submerged. The water depth was set to 30 cm. The specimen was left in this state for 7 days. Next, the water depth was set to 80 cm. The specimen was left in this state for another 7 days.

[0175] Next, the test specimen was disassembled to check for the presence or absence of water leakage. The results were evaluated based on the following evaluation criteria. The evaluation results are shown in Tables 1 to 4.

[0176] ◎: No leakage was observed in any of the 10 specimens, regardless of water depth. ○: Leakage was observed in one specimen at a water depth of 80 cm, and no leakage was observed in the remaining specimens regardless of water depth. △: Leakage was observed in 2 to 4 specimens at a water depth of 80 cm, and no leakage was observed in the remaining specimens regardless of water depth. ×: Leakage is observed in 5 or more specimens at a water depth of 80 cm, or in 1 or more specimens at a water depth of 30 cm.

[0177] [Table 1]

[0178] [Table 2]

[0179] [Table 3]

[0180] [Table 4]

[0181] From the evaluation results shown in Tables 1 to 4, the following can be seen. In each example, the structural simplicity and workability were better than in each comparative example. In each example, good watertightness was achieved by using welding or caulking at the joint between the first metal plate and the locator fixing bolt. In each comparative example, the structural simplicity, workability, and water-stopping properties were poor. [Explanation of symbols]

[0182] 1 Sheet waterproof structure 10 skeleton 11 Floor 12 Wall 30 Tarpaulin 35 Tarpaulin piece 36 Gasket 37 Gasket 40 Insulation Layer 50 Array fixing member 51 Second metal plate 52 Fixture body 53 Washer 54 Spring washer 56 Fixed body 57 Washer 58 Positioning body fixing nut 60 Arrangement body fixing structure 61 1st metal plate 62 Anchor bolt 63 Array body fixing bolt 63a Male thread 63b Processed part 64 Anchor member 65 Fastening members 66 Joint 66A joint 67 Weld Bead 70 solar panel units 71 Solar panel section 72 Legs 73 Nut 74 volts 355 First Through Hole 365 Second Through Hole 375 Second Through Hole 515 Third Through Hole 521 Bottom 522 Side 523 holes 551 Press Nut 552 Press Nut 561 Top 562 Side 563 Bottom 564 holes 611 First main surface 612 Second main surface 613 screw hole 614 screw holes 615 holes 615a Female thread 616 Chamfered part

Claims

1. An arrangement body fixing member used to fix an arrangement body onto a waterproof sheet covering a floor portion of a building body, a first metal plate having a first main surface and a second main surface that are opposite each other, and a plurality of screw holes that connect the first main surface and the second main surface; an arrangement fixing bolt protruding from the first main surface; a first resin sheet piece having a first through hole through which the aligner fixing bolt is inserted and having an outer diameter larger than that of the first metal plate; a second resin sheet piece having a second through hole through which the aligner fixing bolt is inserted, the second resin sheet piece being disposed on the opposite side of the first resin sheet piece from the first metal plate, and having an outer diameter smaller than that of the first metal plate; a second metal plate having a third through hole through which the aligner fixing bolt is inserted, the second metal plate being disposed on the opposite side of the second resin sheet piece from the first resin sheet piece; a pressure nut that is threaded onto the arrangement body fixing bolt and presses the second metal plate toward the second resin sheet piece; Equipped with The locator fixing member is characterized in that the first metal plate and the locator fixing bolt are joined to each other by welding or caulking.

2. 2. The alignment member fixing member according to claim 1, wherein the first resin sheet piece is made of a vinyl chloride resin.

3. 3. The arrangement member fixing member according to claim 1, wherein the second resin sheet piece is made of a vinyl chloride resin.

4. the first metal plate has a fourth through hole through which the arrangement body fixing bolt is inserted and which has an internal thread; The positioning body fixing bolt has a male thread that screws into the female thread, The locator fixing bolt according to claim 1 or 2, wherein the first metal plate and the locator fixing bolt are welded to each other on the second main surface side.

5. the first metal plate has a fourth through hole through which the arrangement body fixing bolt is inserted, the arrangement body fixing bolt has a male thread and a processed portion having a diameter smaller than that of the male thread and inserted into the fourth through hole, 3. The arrangement fixing bolt according to claim 1, wherein the fourth through hole and the processed portion are crimped together.

6. When the Young's modulus of the first resin sheet piece measured by the method specified in JIS A 6008:2022 is E1 and the Young's modulus of the second resin sheet piece is E2, 3. The arrangement member fixing member according to claim 1, wherein Young's modulus E2 is 5% to 400% of Young's modulus E1.

7. an outer diameter of the first resin sheet piece is 150% or more and 500% or less of an outer diameter of the first metal plate, an outer diameter of the second resin sheet piece is 10% or more and 80% or less of an outer diameter of the first metal plate, an outer diameter of the second metal plate is 80% or more and 125% or less of an outer diameter of the second resin sheet piece, 3. The arrangement member fixing member according to claim 1, wherein the thickness of the second resin sheet piece is 50% or more and 200% or less of the thickness of the first resin sheet piece.

8. The arrangement member fixing member according to claim 7 , comprising a plurality of the second resin sheet pieces stacked together.

9. 3. The arrangement fixing member according to claim 1, further comprising a spring washer disposed between the second metal plate and the pressure nut.

10. An arrangement body fixing structure in which an arrangement body is fixed on a waterproof sheet covering a floor portion of a building body, The arrangement member fixing member according to claim 1 or 2; a fastening member inserted into the screw hole and fastened to the floor portion via the waterproof sheet with the first metal plate disposed so that the second main surface faces the waterproof sheet; Equipped with An arrangement fixing structure characterized in that the first resin sheet piece is welded to the waterproof sheet.

11. the arrangement is a solar panel unit including a solar panel portion and a leg portion supporting the solar panel portion, The arrangement fixing structure according to claim 10, wherein the leg portion is fixed to the arrangement fixing bolt.

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