Method for repairing slate structure with installation of equipment fixing member, method for installing equipment fixing member on slate structure, slate structure, and equipment fixing member

Abstract

[Problem] To suppress breakage of a slate structure to which equipment is installed. [Solution] Prior to the operation for mounting equipment on or outside a slate structure 10, an equipment fixing member 7 for fixing the equipment is installed on the slate structure 10, and, in accordance with the installation, a resin layer 11 with foaming properties and a high strength resin layer 12 are sprayed onto the upper surface or the outer surface of the slate structure 10.

Description

Repair method for slate structure involving installation of equipment fixing member, installation method for equipment fixing member on slate structure, slate structure and equipment fixing member

[0001] The present invention relates to a method for repairing a slate structure that involves installing an equipment fixing member, a method for installing an equipment fixing member on a slate structure, a slate structure, and an equipment fixing member.

[0002] Patent Document 1 discloses a construction method for installing a solar cell array frame on a slate roof, in which the legs of a gate-shaped rigid frame structural member are passed through the roof material and attached to a support material in the attic through a pipe, which is then fixed with tapping screws.

[0003] JP 2014-37757 A

[0004] For example, equipment such as solar cell modules (e.g., solar panels) may be attached to slate structures such as slate roofs or walls. When the equipment is attached to a slate structure, it may be unable to withstand loads such as wind pressure on the equipment after installation, resulting in damage to the slate structure. The present invention aims to prevent damage to the slate structure to which the equipment is attached. Another aim of the present invention is to reduce the amount of foam layer displaced by the vertical pieces when inserting the equipment fixing member under the washer after the foam layer has been sprayed, thereby reducing damage to the foam layer and the effort required to repair it.

[0005] The method for repairing a slate structure involving the installation of an equipment fixing member to which the present invention is applicable is a method for repairing a slate structure involving the installation of an equipment fixing member, characterized in that prior to the work of mounting the equipment on or outside the slate structure, an equipment fixing member for fixing the equipment is installed on the slate structure, and in accordance with this, a foamable resin and a high-strength resin are sprayed onto the upper surface or outer surface of the slate structure. From another perspective, the method for repairing a slate structure involving the installation of equipment fixing members to which the present invention is applied is a method for installing equipment fixing members on a slate structure fixed with hook bolts to a main building, which is a structural element supporting the structure, and repairing the slate structure, characterized in that a foamable resin and a high-strength resin are sprayed onto the upper surface of the slate structure, including the vicinity of the heads of the hook bolts, and at the same time, the slide-in piece of the equipment fixing member is inserted between the washer of the nut that screws onto the hook bolt and the slate member of the slate structure, thereby fixing the equipment fixing member to the slate member. Also, from another perspective, the method of installing an equipment fixing member on a slate structure to which the present invention is applied is a method of installing an equipment fixing member on a slate structure that has a structural reinforcement layer on its upper or outer surface that reinforces the structure and is fixed by fasteners to a main building, which is a structural element that supports the structure, and is characterized by removing the structural reinforcement layer near the fasteners, engaging the equipment fixing member with the fasteners to fix the equipment fixing member to the slate structure, and applying a sealing treatment to the portion from which the structural reinforcement layer has been removed.Also, from another perspective, the method of installing an equipment fixing member on a slate structure to which the present invention is applicable is a method of installing an equipment fixing member on a slate structure that has a structural reinforcement layer on its upper or outer surface that reinforces the structure and is fixed with a hook bolt to a main building, which is a structural element that supports the structure, characterized by removing the structural reinforcement layer near the head of the hook bolt, inserting a slide-in piece of the equipment fixing member between the washer of a nut that screws onto the hook bolt and the slate member of the slate structure to fix the equipment fixing member to the slate member, and applying a sealing treatment to the portion from which the structural reinforcement layer has been removed. In a repair method for a slate structure involving the installation of an equipment fixing member, the resin and the high-strength resin may be quick-drying and solidify quickly after spraying, and a worker may stand on a layer of the high-strength resin sprayed on top of the resin or on the sprayed resin layer to attach the equipment fixing member to the slate structure and / or install the equipment. In a repair method for a slate structure involving the installation of an equipment fixing member, the layer of the sprayed resin and the high-strength resin may include two layers: a foamed layer applied to the top surface of the slate structure and a reinforcing layer applied thereon, and the foamed layer and the reinforcing layer may not be applied to the engaging portion of the equipment fixing member with the equipment. Furthermore, in a repair method for a slate structure involving the installation of an equipment fixing member, the resin and the high-strength resin may be applied to the layer of the sprayed resin and the high-strength resin, and the paint layer may also be applied to the engaging portion of the equipment fixing member with the equipment. From another perspective, the slate structure to which the present invention is applicable is a slate structure having a structure reinforcing layer on its upper surface that reinforces the structure, and fixed by fasteners to a main building that is a structural member that supports the structure, and characterized by having an equipment fixing member engaged with the fasteners and a sealant applied around the base of the equipment fixing member.From another perspective, the present invention provides an equipment fixing member for a slate structure that has a structural reinforcing layer on its upper surface for reinforcing the structure and is attached to a slate member of a slate structure secured with hook bolts to a main building supporting the structure. The equipment fixing member comprises opposing upper and lower pieces and a vertical piece connecting the end edges of the two pieces. The lower piece has a lower groove formed therein for receiving the head of the hook bolt, and is inserted between the slate member and a washer of a nut threaded onto the hook bolt. The lower groove extends perpendicular to the vertical piece and is open at the end opposite the vertical piece. In the equipment fixing member of the present invention, it is preferable that the width of the lower piece in the direction perpendicular to the insertion direction between the washer and the slate member (left-right direction) is approximately equal to or narrower than the left-right width of the washer. In this case, when inserting the equipment fixing member (slide-in fitting) after spraying the foam layer, the volume that pushes aside (interferes with) the foam layer is reduced, thereby preventing damage to the foam layer (such as cracking). Another equipment fixing member of the present invention is an equipment fixing member that has a structure reinforcing layer on its upper surface that reinforces the structure and is installed on a slate member of a slate structure that is fixed with hook bolts to a main building that supports the structure, and that consists of opposing upper and lower pieces and a vertical piece connecting the ends of the two pieces, and the lower piece has a lower groove that extends in the insertion direction of the hook bolt and is open at the end in the same direction, and is inserted between the slate member and a washer of a nut that screws onto the hook bolt, and is characterized in that the width of the lower edge in a direction perpendicular to the insertion direction between the washer and the slate member (left-right direction) is approximately equal to or narrower than the left-right width of the washer. In this other equipment fixing member, the connection between the vertical piece and the lower edge is formed at the end of the lower edge opposite the insertion direction, and it is preferable that the length of the connection in the insertion direction is shorter than the lengths of the upper part of the vertical piece and the bottom edge. In this other equipment fixing component, when the component is inserted under the washer after the foam layer has been sprayed, the foam layer displaced by the vertical piece is made smaller, thereby reducing damage to the foam layer and the effort required to repair it.The equipment fixing member of the present invention may further comprise: a support plate that rests on the upper end of the vertical piece and on the intersection of the left and right ends of the upper piece; a bolt that passes vertically through the support plate and the upper piece groove and extends upward; a bolt locking piece that is engaged with the bolt and abuts against the underside of the upper piece; and a bolt engaging member that engages with the bolt and cooperates with the bolt locking piece to fix the plate on the intersection.

[0006] According to the present invention, damage to the slate structure on which the equipment is attached can be suppressed.

[0007] 1 is a schematic front cross-sectional view of a slate roof 1 according to an embodiment of the present invention; 2 is a schematic side cross-sectional view of the slate roof 1 of FIG. 1; 3 is a schematic perspective view of the slate roof 1 of FIG. 1; 4 is a perspective view showing an example of an equipment fixing member (slide-in fitting) for slate roofs, etc., according to an embodiment of the present invention. (A) is a view of an improved version (improved version) that has been improved to make it easier to insert between a washer 23 and a corrugated slate sheet 10, and (B) is a view of a commercially available product for metal roof installation. 5 is a side cross-sectional view illustrating the operation of attaching the slide-in fitting (improved version) of FIG. 4 to a hook bolt 5. 5(A) shows the state in which an insulating foam layer 11 has been sprayed around the hook bolt 5; (B) shows the state in which a recess 11b has been formed in the insulating foam layer 11 around the hook bolt 5; (C) shows the slide-in fitting 7 being inserted under the washer 23 of the hook bolt 5; (D) shows the state in which the fitting 7 has been attached to the hook bolt 5; and (E) shows the state in which the recess 11b in the insulating foam layer 11 has been sealed with a sealant. 1 is a perspective view of a pressing jig 31 for forming a depression in the insulating foam layer (foam layer) 11.

[0033] FIG. 1 is a flow chart illustrating the flow of work steps for pattern A according to a first embodiment of the "method for repairing a slate structure with the installation of equipment fixing members" of the present invention.

[0034] FIG. 1 is a flow chart illustrating the flow of work steps for pattern B according to a second embodiment of the "method for repairing a slate structure with the installation of equipment fixing members" of the present invention.

[0035] FIG. 1 is a flow chart illustrating the flow of work steps for pattern C according to a third embodiment of the "method for repairing a slate structure with the installation of equipment fixing members" of the present invention.

[0036] FIG. 1 is a schematic perspective view illustrating the state at the start of construction in a roof repair method, which is the premise of the "method for repairing a slate structure with the installation of equipment fixing members" of the present invention.

[0037] FIG. 1 is a schematic perspective view illustrating the state, proceeding from the state of FIG. 11, in which a worker stands on the sprayed layer of area R1, which was sprayed immediately before, and begins spraying (upward spraying) the second area above it (ridge side). 10A and 10B are diagrams showing a schematic view of another embodiment of an equipment fixing member (slide-in fitting) 107 inserted under the packing 25 below the washer 23 of the hook bolt 5, where (A) is a front cross-sectional view and (B) is a plan view taken along the line B-B.13A and 13B are views of the equipment fixing member 107 of the embodiment shown in FIG. 13, where (A) is a perspective view and (B) is a front cross-sectional view. This figure shows the state in which a solar cell panel mounting member 120 is stacked on the slide-in fitting 107 of FIGS. 13 and 14, where (A) is a perspective view and (B) is a front cross-sectional view. This figure is a perspective view that schematically shows the slide-in fitting 107 after treatment (curing) to prevent adhesion of the sprayed paint of the coating layer 12 has been applied. This figure is a perspective view of an equipment fixing member (slide-in fitting) 207 of another modified example. This figure is a view of an equipment fixing member (slide-in fitting) 307 of a further modified example, where (A) is a perspective view and (B) is a schematic diagram of curing when spraying the coating layer. This figure is a perspective view of a solar cell module 401 installed on a corrugated slate roof 1. 19A and 19B are enlarged perspective views of the slide-in fitting 7 and the connecting fittings 411-415 in the solar cell module installation state shown in FIG. 19A shows the fittings securing the module ends, and FIG. 19B shows the fittings securing two adjacent modules with a set of fittings. A perspective view of the equipment fixing member (slide-in fitting 507) of the third embodiment. (A) shows the state before the hook bolt 5 is engaged, (B) shows the state in which the slide-in piece 507s is inserted under the packing 25 below the washer 23 of the hook bolt 5, and (C) shows the state in which the equipment fixing member 507 is rotated 90 degrees. These are views of the equipment fixing member 507 of FIG. 21A, where (A) is a perspective view, (B) is a plan view, and (C) is a front view. A side cross-sectional view schematically illustrating the behavior of the equipment fixing member when an abnormal pulling (lifting) force is applied to the equipment fixing member. (A) shows the case of a general-purpose fitting, and (B) shows the case of the equipment fixing member 507 of this embodiment. 21(C) (after insertion and rotation), the foam layer 11, the coating layer 12, and the top layer 13 are spray-formed (painted) around the equipment fixing member 507. A perspective view of an equipment fixing member 107' according to a modified example of the third embodiment. A diagram of an equipment fixing member 607 according to a fourth embodiment. (A) is a perspective view, and (B) is a plan view.

[0008] 1; slate roof, 3; purlin (supporting structure), 3f; lip portion 5; hook bolt (locking member, fastener), 5b; hook portion, 5f; straight rod portion, 5m; head, 7; equipment fixing member (metal fitting), 7b; upper piece, 7f; upper groove, 7j; vertical piece (back wall), 7s; lower piece (slide-in piece), 7w; lower groove 10; slate corrugated sheet (structure, slate member), 10b; top surface, 10m; ridge (top), 10z; hole 11; foam layer (insulating foam layer, foam resin layer, insulating waterproof reinforcement layer), 11b; depression, 11x; embedded foam layer 12; coating layer (waterproof reinforcement layer, high-strength dense resin layer, insulating waterproof reinforcement layer) 13; top layer (UV-resistant paint layer), 14; sealant 17; bolt, 17w; bolt head, 18; nut 21; nut (fastener), 23; washer, 25; gasket 31; jig, 31b; handle, 31f; pressing piece 70; building, 71; roof, 73; eaves, 79; side wall 80; external scaffolding, 81; pillar, 82; beam, 83; ceiling M1; spraying worker (foam layer construction), M2; spraying worker (coat layer construction) Sf; spraying foaming agent, Sc; spraying waterproof reinforcement agent 107; equipment fixing member (slide-in fitting), 107b; upper piece, 107d; upper edge (intersection), 107f; cut, 107f; vertical piece, 107jb; middle part of vertical piece, 107jf; edge, 107jk; top of vertical piece, 107m; connection part, 107s; lower piece (slide-in piece), 107w; lower groove, 107x; taper, 107y; taper 120; solar cell panel mounting member, 121; mounting plate, 121b; upper surface, 121g; left and right flanges 121k; front and rear flanges, 123; bolt locking piece, 125; bolt engaging member (nut), 127; bolt, 129; adhesive tape piece 207; equipment fixing member (slide-in fitting), 207j; vertical piece, 207s; lower piece, 207w; groove, 217; bolt 307; equipment fixing member (slide-in fitting), 307j; vertical piece, 307s; lower piece, 307w; groove, 317; bolt, 322; cap (pipe), 401; solar cell module, 411; first fitting, 413; second fitting, 415; third fitting 419; nuts and washers 507; equipment fixing member, 507b; box section, 507c; upper plate, 507d; left side wall, 507f; front wall, 507g; rear wall, 507h; side wall, 507j; side edge, 507k; hole, 507m; back wall, 507n; lower plate 507p;Slide-in portion, 507q; side, 507r; vertical piece, 507t; chamfer 507s; slide-in piece (lower piece), 507w; groove, 507x; 507z; back 529, adhesive tape, 590; hammer 607; equipment fixing member, 607s; slide-in piece (lower piece) 607w; groove, 607x; groove entrance, 607y; pocket portion, 607z; back;

[0009] Slate roofs on large buildings such as factories and warehouses require periodic maintenance, such as renewal and repainting, to maintain their waterproofing and weather resistance. During this maintenance, there is a notable trend to restore the roof's original functionality while also improving its insulation, improving the indoor environment underneath and saving energy. Furthermore, in recent years, with the backing of the "Green Growth Strategy for Carbon Neutrality" being promoted primarily by the Ministry of Economy, Trade and Industry, there has been an accelerating movement in the industrial and distribution sectors to transform the rooftops of large factories and warehouses into green power plants that generate carbon-free energy.

[0010] However, when attaching equipment fixing members (metal fittings) to slate roofing materials that have deteriorated and weakened in strength, cracks or breakage of the slates may occur in areas where the roofing material cannot withstand the wind pressure load of wind hitting the solar cell modules (solar panels, or solar panels), which may result in leaks.

[0011] One method does not rely on the strength of slate roofing materials (such as billowy slate), but involves erecting the solar cell module support structural members from the purlin (structural members such as steel beams that support the roof) onto the roof. However, this method requires drilling holes in the slate roofing material to erect the support structural members, which requires measures to prevent slate fragments and rainwater from leaking into the building when drilling the holes, or the temporary closure of the factory. Furthermore, if the slate contains asbestos, the Asbestos Hazard Prevention Regulations require measures to be taken, such as removing, containing, and enclosing asbestos-containing dust, which requires time and money.

[0012] Naturally, when workers are painting or performing other tasks on a slate roof, it is necessary to provide a safe work platform on or around the slate roof to prevent accidents such as falling due to the slope of the roof or stepping through something due to roof damage. Previously, safety measures such as laying safety nets or boards on top of the corrugated slate, which had deteriorated and weakened, were implemented, and then metal fittings for securing solar cell modules were attached to the existing hooks on the slate roof. This method required workers to move protective nets and other protective equipment around the roof as they worked, making it difficult to install the fittings quickly and resulting in long construction times.

[0013] The applicants and inventors of this application have long been working on developing painting technology for slate roofs, with the aim of making a significant contribution to strengthening the strength and insulating properties of slate roofs and improving the safety of workers standing on the roof from stepping through them.

[0014] With this background in mind, an embodiment of the present invention will be described below with reference to the accompanying drawings. In each drawing, the directions "up" and "down" indicated by the arrows are directions along the Earth's gravity. "Eaves" refers to the direction in which the roof slopes less, and "ridge" refers to the direction in which the roof slopes more. "Left" and "right" refer to the left and right directions as seen by a viewer of the drawing. In this specification, "slate roofs, etc." refers to architectural structures such as slate roofs and walls. Slate roofs, etc. are an example of slate structures.

[0015] First, with reference to Figures 11 and 12, we will explain the roof repair method (spray-up method), which is the premise of the "method for repairing a slate structure with the installation of equipment fixing members" of this invention. Figure 11 is a schematic perspective view showing the state at the start of construction. The figure shows a relatively large building 70 (factory, warehouse, store, etc.) and its slate roof 71. In this spray-up method, layers such as a foam insulation layer (foam layer), a waterproof reinforcement layer (coat layer), and a protective layer (top layer) are sprayed onto the top surface of the slate roof 71 in that order.

[0016] The building 70 has a slate roof 71 and side walls 79. The roof 71 slopes downward from the ridge (upper left) toward the eaves 73 (lower right) in Figures 11 and 12. The roof 71 is made of large slate sheets, laid side by side with the longitudinal direction of the waves aligned with the ridge and eaves. The side walls 79 form the perimeter of the building 70 and extend downward from the eaves 73 of the roof 71. Along these side walls 79, external scaffolding 80 for roof repairs is erected. The external scaffolding 80 is made of, for example, metal cylindrical columns 81 and beams 82 fastened together with clamps (not shown) to form a framework, with scaffolding boards 83 strung across it. The top scaffolding board is called the top surface 84. The top surface 84 is a panel-like member that extends approximately horizontally and is strong enough for workers to stand on and work on. The top surface 84 is positioned along the eaves 73 of the roof 71 at approximately the same height as the eaves 73. A handrail 85 is provided on the outer periphery of the top surface 84.

[0017] After the external scaffolding is completed, the roof 71 is sprayed sequentially with a foam insulation layer (foam layer), a waterproof reinforcement layer (coat layer), and a protective layer (top layer), typically by spraying using a handheld spray gun operated by a worker. Alternatively, a spraying device (a self-propelled mechanical device without a handheld gun) can be used to spray the roof surface. In a standard method, the foam layer is sprayed first, followed by the coat layer. This work is performed, for example, by two workers M1 and M2. At the start of work in Figure 11, both workers begin work on the top surface 84 of the external scaffolding 80, which serves as their work platform. The first worker, M1, shown on the right side of the figure, holds a spray gun that sprays the foaming resin material that will form the foam layer. The second worker, M2, holds a spray gun that sprays the dense resin material that will form the coat layer. The spray guns held by the two workers M1 and M2 are transported with pressurized materials (agents) from equipment loaded on a ground-based equipment vehicle.

[0018] The spraying work begins with spraying the lowest band-shaped region R1 (e.g., 80-100 cm wide) extending from left to right along the eaves 73 of the roof 71. Worker M1 walks along the eaves 73 on the top plate 84 from one end of region R1 (the left end of the figure) to the other end (the right end of the figure), spraying foaming agent spray Sf onto the roof surface to form a foam layer. Worker M2 follows behind worker M1 and, a short time later (e.g., about 3-5 minutes), sprays coating layer material spray Sc onto the areas where worker M1 sprayed the foaming agent. When workers M1 and M2 have sprayed up to the right end of region R1, a foam layer (foam insulation layer) and a coating layer (waterproof reinforcement layer) will have been formed in region R1.

[0019] Next, as shown in Figure 12, spraying (upward spraying) of the second region R2 above the first region R1 is performed. Figure 12 is a schematic perspective view showing the state proceeding from the state shown in Figure 11, in which workers stand on the sprayed layer of the previously sprayed region R1 and begin spraying (upward spraying) of the second region R2 above that (ridge side). Workers M1 and M2 stand on region R1 of the roof 71, where a foam layer and a coating layer are formed on top of the large wave slate material, and use this as a work platform to move to region R2, which is closer to the ridge (upward, farther from the eaves) than region R01, spraying foaming agent Sf and waterproofing layer material Sc sequentially. Then, work (upward spraying) of the region further above region R2 continues, standing on the previously sprayed layer, all the way up to the ridge of the roof 71 (not shown).

[0020] The top layer (UV-resistant paint layer) on top of the coating layer is formed by spraying the above-mentioned foam layer and coating layer up to the ridge, and then spraying the UV-resistant paint from the top (ridge side) downwards (towards the eaves). The top layer of UV-resistant paint does not dry quickly (it takes, for example, about a day for it to dry and sit on top), so it is sprayed from top to bottom, climbing down onto the unpainted top layer of coating. Conversely, if it was sprayed from the bottom up, workers who reached the ridge would not be able to get down the roof.

[0021] This blow-up method has the following features. By spraying a foamable resin material onto the surface of the roof 71 (the target surface), forming an insulating foam layer (foam layer) and a waterproof reinforcement layer (coat layer), the roof 71's strength is increased, preventing damage to the roof 71 due to its own weight and wind pressure when solar cell modules or other equipment are installed later. Furthermore, by using the reinforced slate roof as a safe foothold, workers can prevent falls due to footing through the slate roof while spraying toward the ridge (blowing up), allowing for a smooth process and safely extending the insulating reinforcement layer. Furthermore, the insulating waterproof reinforcement layer provides reliable, long-term waterproofing and heat insulation, improving the indoor environment and reducing air conditioning costs, resulting in energy savings. The foam insulation layer and waterproof reinforcement layer (coat layer) are collectively referred to as the insulating reinforcement layer. The above-described blow-up method is realized, as an example, by the "SOSEI Blowing Up Method" provided by the applicant.

[0022] Next, we will explain the installation of equipment fixing members (metal fittings) for mounting equipment such as solar cell modules on a slate roof in combination with the blow-up method, with reference to Figures 1, 2, and 3. The slate roof 1 is made of corrugated slate sheets 10 (large-wave slate). In this example, the corrugated slate sheets 10 are 38 mm high (example) and 130 mm pitch (example). The arc-shaped cross-section of the peaks and valleys extends linearly toward the ridge. The longitudinal direction of the peaks and valleys corresponds to the ridge (high part) and eaves (low part). As clearly shown in Figure 2, the corrugated slate sheets 10 rest on the purlin 3, which is the roof structure of the building, and are secured with hook bolts 5. In this example, the purlin 3 is a lightweight steel C-channel. The bottom surface of the corrugated slate sheets 10 rests on the top surface of the upper short side of the purlin 3. The longitudinal direction of the main building 3 is the left-right direction of the roof 1 and is perpendicular to the direction in which the peaks and valleys of the corrugated slate sheets 10 extend.

[0023] As shown clearly in Figure 2, the hook bolt 5 is a rod-shaped bolt (straight rod portion 5f) extending vertically with an external thread at the top. The lower end of the bolt forms a hook portion 5b that is bent horizontally upward. It is made of structural steel or stainless steel. The hook portion 5b is hooked onto the lip portion 3f of the purlin 3. The straight rod portion 5f extends from the valley to the crest of the large-wave corrugated slate sheet 10, passing through a hole 10z in the sheet 10, with its upper head 5m protruding above the crest. As shown clearly in Figure 1(B), a gasket 25, a washer 23, and a nut 21 are fitted around the head 5m from below. The gasket 25 is, for example, a felted synthetic fiber impregnated with asphalt. The washer 23 is curved to fit the curved surface of the crest of the corrugated slate sheet 10. The slide-in piece (lower piece) 7s of the equipment fixing member (metal fitting) 7, which will be described later, is inserted between the washer 23 and the top surface of the corrugated slate sheet 10 and tightened with a nut 21, fixing the metal fitting 7 to the slate roof 1. As shown in Figure 3, the hook bolts 5 are provided at a certain pitch in the left-right and ridge-eaves directions on the slate roof 1. In one example, the left-right pitch P1 is 390 mm, and the ridge-eaves pitch P2 is 700 to 990 mm.

[0024] A foamable resin material is sprayed onto the corrugated slate sheets 10 of the slate roof 1 to form a heat insulating foam layer 11 (foam layer, for example, approximately 10 mm or thicker). On top of the foam layer 11, a waterproof reinforcement layer 12 (coat layer, for example, 1 to 2 mm thick) is formed, and on top of that, a UV-resistant paint layer 13 (top layer, for example, thickness in 0.1 mm increments) is formed.

[0025] Figure 4 is a perspective view showing an example of an equipment fixing member (metal fitting) 7. Figure 4(A) shows an improved version (improved version) that has been improved to make it easier to insert between a washer 23 and a corrugated slate sheet 10. Figure 4(B) shows a version based on a commercially available product for metal roof installation. The orientation shown in Figure 4 is the orientation when the metal fitting 7 is installed on a slate roof 1. The metal fitting 7 is generally U-shaped and consists of opposing upper and lower pieces (slide-in pieces) 7b and 7s, and a vertical piece 7j connecting the two pieces. Each piece is made of bent steel plate (e.g., 2 mm thick) and measures, for example, approximately 4-5 cm square.

[0026] A lower groove 7w extending toward the eaves ridge is dug into the lower piece 7s in the center in the left-right direction. The lower groove 7w is closed (not open) on the side of the vertical piece 7j (described later). The lower piece 7s is slightly raised in the center in the left-right direction, making it easier to fit along the upper surface of the arc-shaped convex portion of the corrugated slate sheet 10. This lower piece (slide-in piece) 7s is inserted between the washer 23 of the hook bolt 5 and the upper surface of the corrugated slate sheet 10 (details will be described later with reference to Figure 5), and is tightened with a nut 21 to secure the bracket 7 to the slate roof 1. The hook bolt 5 passes through the lower groove 7w. The slide-in piece 7s is tapered near the open end of the lower groove 7w, making it easier to insert.

[0027] The vertical piece (wall) 7j connects the lower piece 7s and the upper piece 7b at their respective edges toward the eaves ridge, transferring the load (the weight of equipment such as solar cell modules and wind pressure) on the upper piece 7b to the lower piece 7s. The upper surface of the upper piece 7b is the surface that supports the equipment (not shown). An upper groove 7f extending toward the eaves ridge is also cut into the center of the upper piece 7b in the left-right direction. A bolt 17 passes through the upper groove 7f. The bolt 17 is fixed upright to the metal fitting 7 by a bolt head 17w at its bottom end and a nut 18. A nut is threaded onto the top of the bolt 17. This bolt 17 is used to secure the equipment placed on the metal fitting 7. The bolt 17 is attached to the metal fitting 7 after the metal fitting 7 is fixed to the slate roof 1 and after the roof surface has been painted.

[0028] The bracket 7' in Figure 4(B) is a bracket for attaching a steel roof to a slate roof and is commercially available at a relatively low price. The symbols for each component are the same as those in Figure 4(A), and except as noted below, components with the same symbols have the same structure and function. In the bracket 7' in Figure 4(B), the vertical piece 7j' is parallel to the lower groove 7w in a plan view. Therefore, when inserting the bracket 7' into the insulating foam layer 11, the vertical piece 7j' may also be inserted into the insulating foam layer 11 around the hook bolt 5, removing part of the layer. In this regard, the vertical piece 7j of the bracket 7 in Figure 4(A) is not inserted into the insulating foam layer 11, making the improved version of Figure 4(A) a superior slide-in bracket.

[0029] Next, an example of a method for attaching the slide-in fitting 7 to the hook bolt 5 will be described with reference to Figure 5. Figure 5 is a side cross-sectional view for explaining the operation of attaching the slide-in fitting 7 of Figure 4(A) to the hook bolt 5. Figure 5(A) shows the state after the insulating foam layer 11 has been sprayed around the hook bolt 5, (B) shows the state after a depression 11b has been made in the insulating foam layer 11 immediately next to the hook bolt 5, (C) shows the slide-in fitting 7 being inserted under the washer 23 of the hook bolt 5, (D) shows the fitting 7 attached to the hook bolt 5, and (E) shows the state after the depression 11b has been filled with sealant.

[0030] Figure 5(A) is a schematic diagram of the area around the hook bolt 5 immediately after spraying the insulating foam layer 11, taken along the same cross section as Figure 2. In the figure, the cross section of the corrugated slate sheet 10 (cut along a plane extending vertically and vertically toward the eaves and ridge, with a thickness of, for example, 6.3 mm) is drawn to extend horizontally (although in reality, it is tilted to accommodate the slope of the roof). The insulating foam layer 11 (thickness after foaming, for example, 10-15 mm) is placed on top of the corrugated slate sheet 10. The insulating foam layer 11 also extends over (covers) the head of the hook bolt 5, the nut 21, and the washer 23.

[0031] Figure 5(B) shows the insulating foam layer 11 being pressed down from above by a jig 31 (see Figure 6). Figure 6 is a perspective view of the pressing jig 31. The jig 31 consists of a pressing piece 31f and a handle 31b erected above it. The pressing piece 31f is a steel plate that is slightly larger in shape than the lower piece 7s of the equipment fixing member 7. The handle 31b is a pipe, for example, about 30 cm long, and is sized so that a standing worker can easily press the jig (pressing piece 31f) against the side of the hook bolt 5 at their feet.

[0032] The jig 31 is pressed against the spray foam material immediately after spraying the material for the insulating foam layer 11, for example, 5 to 15 seconds afterward. The pressed portion of the foam resin material is suppressed from expanding and thickening. This pressed portion becomes the recess 11b of the insulating foam layer 11. Next, as shown in Figure 5(C), the lower part of the metal fitting 7 is inserted into the recess 11b. Then, the back of the vertical piece 7j of the metal fitting 7 is struck with a hammer or similar tool, inserting (driving) the slide-in piece (lower piece) 7s of the metal fitting 7 between the washer 23 and the top surface 10b of the corrugated slate sheet 10. At this time, the shaft of the hook bolt 5 enters the lower groove 7w of the metal fitting 7. In Figure 5(D), the slide-in piece 7s of the metal fitting 7 is inserted under the washer 23, securing the metal fitting 7 to the top surface 10b of the corrugated slate sheet 10. In Fig. 5(E), the depression 11b of the insulating foam layer 11 is filled with the sealant 14. The sealant 14 is also applied to the part of the insulating foam layer 11 that may have been partially removed when the metal fitting 7 was inserted.

[0033] Next, we will explain an embodiment of the "method for repairing slate structures with the installation of equipment fixing members" of the present invention, with reference to the work process flow diagrams in Figures 7, 8, and 9. For the situation around the hook bolts 5 and metal fittings 7, please refer to Figure 5. Pattern A Work Process (Holding Jig Specifications) This pattern A work process is one embodiment of the "method for repairing slate structures with the installation of equipment fixing members." In this pattern, the worker stands on the dry, sprayed, insulating and waterproofing reinforcement layers 11 and 12, forms a foam layer with a holding jig, and then inserts and installs slide-in metal fittings 7 into the heads of the hook bolts 5. Figure 7 is a flow diagram illustrating the flow of the work process for Pattern A. A0: Pre-assembly of the external scaffolding: Assemble the external scaffolding along the outer wall of the building with the target roof so that its top surface is approximately the same height as the eaves of the roof (see Figure 11). The top handrail should be, for example, 0.85 m or more higher than the eaves.

[0034] A1: Spraying an insulating foam layer (foam) 11 onto the roof area, including the heads of the hook bolts 5 in the first row along the eaves. The foam sprayer stands on the top of the scaffolding and sprays the foam onto the roof surface along the eaves. At this time, foam 11 is also sprayed onto the heads of the hook bolts 5 in the bottom row (see Figure 5(A)). If the threaded ends of the hook bolts are too long, they should be cut short with a wire cutter beforehand. If the distance (dimension) from the scaffolding to the hook bolts in the first row (closest to the eaves) is long and it is difficult for a worker standing on the top of the scaffolding to install the hardware described below, the first foam layer / coat layer (i.e., the zeroth row of insulating waterproof reinforcement layer) can be sprayed up to the vicinity of the hook bolts in the first row. After that layer dries, the worker can stand on top of the layer to spray the foam onto the hook bolts in the first row and install the hardware.

[0035] A2: Forming foam near the head of the first row of bolts with a holding jig, and attaching the equipment fixing member (metal fittings) Immediately after spraying the foam (for example, within 5 to 15 seconds), a fitting installer standing on the top of the scaffolding attaches the slide-in fitting 7 to the head of the first hook bolt 5 that has been sprayed with foam 11. At this time, as shown in Figure 5(B), the holding jig 31 or the fitting 7 itself is placed immediately next to the bolt head 5m to prevent the sprayed foam 11 liquid from foaming, and a setting space for the fitting (recess 11b in the insulating foam layer 11) is secured. In this state, as shown in Figure 5 (C), the bottom of the metal fitting 7 is placed in the bottom of the recess 11b, and the slide-in piece 7s is inserted under the nut washer 23 of the hook bolt head 5m (between the underside of the washer and the top surface 10b of the slate roofing material 10 (the top of the large wave slate)), and the metal fitting is fixed to the bolt head. At this time, part of the still soft insulating foam layer spray coating will get in between the top of the large wave slate and the washer, acting as a lubricant, so to speak, making the insertion smoother or improving the fit, which is preferable.

[0036] A3: When installing the sealing treatment near the metal fittings 7, the foam layer 11 around the bolt head 6m or part of the packing 25 under the washer 23 may be removed. This removed area is filled and sealed with sealant. Note that this sealing treatment may be performed after the coating layer has been sprayed and the coating layer adhesion prevention curing has been removed. A4: Protecting the equipment mounting surface of the metal fittings By applying masking tape or other measures to the top surface of the installed metal fittings (equipment mounting surface), the coating layer is prevented from adhering to the top surface when the "high-strength dense resin layer (coat)" is sprayed in the next process. Note that this curing does not have to be performed on-site; masking tape may be applied to the metal fittings in advance.

[0037] A5: A high-strength dense resin layer (coat) is sprayed onto the first row of roof area after the installation of the spray fittings. Usually, a second person sprays from the top of the scaffolding and sprays from the nozzle. A6: Removing the protective covering After spraying the coating, the protective covering is removed before the coating layer hardens (for example, within 60 seconds after spraying).

[0038] A7: Spray an insulating foam layer (foam) on the roof area including the heads of the second row of hook bolts. After the first row of foam and coating layers have dried (approximately 3-5 minutes or more after the coating layer has been sprayed), a scaffolding board (road board) is laid on top of the coating layer, and the sprayer stands on the board and sprays the foam onto the roof surface above the first row. At this time, foam is also sprayed onto the heads of the hook bolts in the second row from the bottom. This method of forming multiple rows of insulating waterproof reinforcement layers in succession from the bottom (eaves) to the top (ridge) of the roof, and then having a worker stand on top of the dried layer after spraying and spraying the next layer is called the "spraying method." A8: A holding jig is used near the heads of the second row of bolts to form a foam layer ⇒ Metal fittings are attached to the heads of the second row of bolts ⇒ Protection is applied to the surface where the metal fittings are attached ⇒ Coating is sprayed ⇒ Protection is removed. A9: Repeat this process from the third row onwards up to the ridge.

[0039] A10: After the first foam layer and second coating layer have dried over the entire roof, the UV-resistant paint (top coat) is sprayed. The top coat is not quick-drying, and since it is not possible to stand on it immediately after spraying, the worker stands below the area to be sprayed, spraying from the top (ridge) to the bottom (eaves). The top coat is thin (for example, in 0.1 mm increments), so even if it is present on the equipment mounting surface of the equipment fixing components (metal fittings), it will not adversely affect the equipment mounting. In fact, it also serves to prevent rust on the metal fittings, so no paint protection is required on the metal fittings 7 when spraying the top coat.

[0040] Features of Pattern A (compared to other patterns): Because the metal fittings (equipment fixing members) 7 are attached after the foam layer 11 is sprayed onto the heads 5m of the hook bolts 5, there is no need to protect the metal fittings 7 from the foam adhesion or to remove the protection before the foam hardens. However, since the metal fittings must be attached immediately after the foam spraying work, the timing of these two tasks must be adjusted. In addition, as features of other patterns, the pattern has the advantage of improving the strength and durability of the roof, allowing solar cell modules to be installed with peace of mind, improving the waterproofing and insulation of the roof, and allowing the reinforced slate roof to be used as a safe work floor.

[0041] Pattern B work process: (pre-installation of metal fittings with spraying specifications) This pattern B work process is one embodiment of the "method for repairing slate structures with the installation of equipment fixing members", in which the worker stands on the dry insulation waterproof reinforcement layer after spraying and inserts slide-in fittings into the heads of the hook bolts before the foam is sprayed. Figure 8 is a flow chart for explaining the flow of the pattern B work process. B0: Pre-assembly of external scaffolding This is the same as A0 described above.

[0042] B1: The insulating foam layer (foam) and waterproof reinforcement layer (coat) are sprayed on the roof area up to just below the heads of the first row of hook bolts along the eaves. The foam sprayer stands on top of the scaffolding and sprays foam layer 11 on the roof surface along the eaves, followed by coating layer 12. At this time, each layer is sprayed up to just below (approximately 5-10 cm below) the heads of the bottom row of hook bolts 5. B2: After the sprayed foam and coating layers have dried (after 3-5 minutes or more), a hardware installer standing on a scaffolding board laid on top of the sprayed layers inserts a slide-in hardware 7 under the nut washer 23 (between the underside of the washer and the top surface 10b of the corrugated slate sheet 10) of the first row of hook bolts 5m above the heads, where no foam is attached, to secure the hardware to the bolt heads (Figures 5C and 5D show the situation without foam layer 11).

[0043] B3: Protecting the equipment mounting surface of the metal fittings By applying protective tape or other measures to the top surface (equipment mounting surface) of the installed metal fittings, the foam layer and coat layer are prevented from adhering to the top surface when the "heat insulating foam layer 11 (foam)" and "high strength dense resin layer 12 (coat)" are sprayed in the next process. Note that this protection does not have to be done on-site, and protective tape may be applied to the metal fittings in advance.

[0044] B4: Spraying an insulating foam layer (foam) and waterproofing reinforcement layer (coat) on the roof area up to the second row of hook bolts, including the heads of the first row of hook bolts along the eaves. The foam sprayer stands on a scaffolding board laid on top of the first row of sprayed layer and sprays the second row of foam coat onto the roof surface. At this time, spraying is also done around the equipment fixing members (metal fittings) in the bottom row. B5: Removing the protective tape. The protective tape and the sprayed layer attached to the metal fittings are cut open and removed. B6: Repairing areas where the metal fittings are not sufficiently sprayed (such as areas in the shadow of the metal fittings) or where part of the sprayed layer was removed during B5 "removing the protective tape" by filling in sealant. This sealing treatment can be done one area at a time during the process flow, or multiple areas can be treated at once, such as before the top spraying.

[0045] B7: Attach metal fittings to the second row of bolt heads ⇒ Protect the surface where the metal fittings are attached to the equipment ⇒ Spray on foam and coat ⇒ Remove the protection B8: Repeat from the third row onwards up to the ridge B9: Spray on UV-resistant anti-degradation paint After spraying the foam layer and coat layer, attaching the metal fittings, removing the protection and sealing, spray on UV-resistant anti-degradation paint (top).

[0046] Features of Pattern B (compared to other patterns): The metal fittings 7 can be installed without the foam layer 11, so there is no need to install the metal fittings immediately after spraying the foam. However, since the foam is sprayed after the metal fittings are installed, the spraying process requires time and effort to ensure that the areas shaded by the metal fittings are not sprayed with insufficient foam. In addition, it takes time to remove the foam-coated masking tape. Like Pattern A, this pattern has the advantages of improving the strength and durability of the roof, allowing solar cell modules to be installed with peace of mind, improving the roof's waterproofing and insulation, and allowing the reinforced slate roof to be used as a safe work floor.

[0047] Pattern C Work Process (Specifications for Installing Hardware Before Insulation Reinforcement) This pattern C work process is one embodiment of a "method for repairing a slate structure with the installation of equipment fixing members." The worker stretches a safety net over the slate roof before spraying, climbs onto scaffolding boards, and installs slide-in fittings over the entire roof by inserting them into the heads of the hook bolts before foam is sprayed. The safety net is then removed, and an insulating waterproof reinforcement layer is installed over the entire roof surface using the blow-up method. Figure 9 is a flow chart illustrating the flow of the pattern C work process. C0: Preliminary external scaffolding assembly and safety net installation. The external scaffolding assembly is the same as A0 and B0 above. In this pattern C, equipment fixing members are installed on a slate roof without an insulating reinforcement layer, so a safety net is installed over the roof surface as safety protection.

[0048] C1: Installing equipment fixing components (metal fittings) on the heads of all target hook bolts on the roof. A worker climbs onto a scaffolding board laid on top of a safety net and installs equipment fixing components 7 (metal fittings) on the heads 5m of all target hook bolts 5 on the roof. C2: Protecting the equipment mounting surface of the metal fittings By applying protective tape or other measures to the top surface 7b (equipment mounting surface) of the installed metal fittings 7, the foam layer and coating layer are prevented from adhering to the metal fittings top surface 7b when the "insulating foam layer 11 (foam)" and "high-strength dense resin layer 12 (coat)" are sprayed in the next process. Note that this protection does not have to be done on-site; instead, protective tape can be applied to the metal fittings in advance.

[0049] C3: Spraying the insulating foam layer 11 (foam) and waterproof reinforcement layer 12 (coat) over the entire roof. Using the standard spraying method, the foam / coat sprayer sprays the first layer along the eaves from above the scaffolding top board. Then, standing on the scaffolding boards laid on top of the existing lower sprayed layer, sprays the second to top rows of foam layers 11 and coat layers 12 onto the roof surface. C4: Removing the protective covering. Cut and remove the protective tape and the sprayed layer attached to the metal fittings. C5: Repairing areas where the metal fittings are not sufficiently sprayed (such as areas in the shadow of the fittings) or where part of the sprayed layer was removed during C4 "protection removal" with sealant. C6: Spraying the UV-resistant anti-degradation paint. After spraying the foam layer and coat layer, installing the fittings, removing the protective covering, and sealing, the UV-resistant anti-degradation paint (top) is sprayed.

[0050] Features of Pattern C (compared to other patterns) As with Patterns A and B, the roof strength and durability are improved, allowing for safe installation of solar cell modules, while also improving the waterproofing and insulation of the roof. However, when installing the equipment fixing members, the insulation reinforcement layers 11 and 12 are not yet applied to the slate roof 1, so safety measures such as safety nets are required. However, since the metal fittings can be installed without foam, there is no need to install the metal fittings immediately after foaming. However, since the foam is sprayed after the metal fittings are installed, the spraying process requires time and effort to ensure that the areas shaded by the metal fittings are not sprayed with insufficient foam. In addition, removing the masking tape with the foam coating is time-consuming.

[0051] Pattern D work process: (Specifications for properties with an insulating reinforcement layer installed) This pattern D work process is one embodiment of the "method for installing equipment fixing members on a slate structure." In this pattern, the hardware installation worker stands on the insulating waterproof reinforcement layer and inserts slide-in hardware into the heads of hook bolts that have already been sprayed with foam across the entire roof. Figure 10 is a flow diagram for explaining the flow of the pattern D work process. D0: Pre-assembly of external scaffolding The assembly of the external scaffolding is the same as steps A and B above.

[0052] D1: Installing equipment fixing components (metal fittings) on the heads of all target hook bolts on the roof. A worker stands on a scaffolding board laid on top of the existing insulation reinforcement layer and installs metal fittings 7 on the heads of all target hook bolts on the roof. At this time, the insulation and waterproofing reinforcement layer (11, 12, 13) is cut and removed 5m from the head of the hook bolt 5, resulting in a state similar to that shown in Figure 5(C). Note that in the D pattern, the bottom portion of the insulation foam layer 11 is almost completely removed, leaving the top surface 10b of the corrugated slate sheet 10 exposed on the sides of the hook bolt 5. Then, as shown in Figure 5(D), the slide-in piece 7s of the metal fitting 7 is inserted between the washer 23 of the nut 21 threaded onto the hook bolt 5 and the top surface 10b of the corrugated slate sheet to secure the metal fitting 7 to the slate roof 1. D2: Sealing treatment: Repair the sprayed layer around the hook bolt heads that have been incised and removed, or partially removed, by filling with sealant. D3: Spraying UV-resistant paint: Although this is an optional process, it is preferable to spray a UV-resistant paint (top) around the hardware and the entire upper surface of the roof 1 after installing the hardware. The foam layer and coating layer have a long lifespan of approximately 20 years if the top layer is sound. However, it is preferable to repaint the top layer, for example, every 10 years. Therefore, since we have already gone to the trouble of setting up scaffolding, installing equipment fixing members, and installing solar panels on the roof, it is preferable to reapply the top layer.

[0053] Features of Pattern D (compared to other patterns): As with Patterns A and B, the roof strength and durability are improved, allowing solar cell modules to be installed with peace of mind. In addition, when the equipment fixing members are installed, the slate roof 1 already has an insulating and waterproof reinforcement layer applied, so safety measures such as safety nets are not required.

[0054] In the embodiments described above, the foam insulation layer (foam layer), waterproof reinforcement layer (coat layer), and protective layer (top layer) are realized by, for example, products provided by the applicant, namely "SOSEI Foam," "SOSEI Coat," and "SOSEI Top."

[0055] The above-described embodiment can also be described as an example as follows: Here, reference numerals of the various parts in the attached drawings are shown in parentheses, but this is for reference only and does not limit the scope of the rights to those in the attached drawings.

[0056] The method of installing an equipment fixing member (7) on a slate roof (1) or the like of the present invention is a method of installing an equipment fixing member (7) on a slate roof (1) or the like which has a heat insulating waterproof reinforcement layer (11, 12) on its upper or outer surface and is fixed by fasteners (5, 21) to a main building (3) which is a structure that supports the roof or the like, and is characterized by removing the heat insulating waterproof reinforcement layer (11, 12) near the fasteners (5, 21), engaging the equipment fixing member (7) with the fasteners (5, 21) to fix the member to the roof or the like, and applying a sealing treatment (14) to the part where the waterproof reinforcement layer (11, 12) has been removed and in the vicinity thereof.

[0057] According to this method of installing an equipment fixing member on a slate roof, etc., the presence of the insulating and waterproofing reinforcing layers (11, 12) improves the strength and durability of the slate roof, etc., so equipment such as solar cell modules can be installed on the slate roof, etc. with peace of mind. Specifically, damage to the slate roof, etc. due to additional loads such as wind pressure on the installed equipment can be prevented. Examples of the form of the equipment fixing member (7) are as described with reference to Figure 5, etc.

[0058] One specific embodiment of the method of installing an equipment fixing member (7) on a slate roof (1) or the like according to the present invention is a method of installing an equipment fixing member (7) on a slate roof (1) having an insulating waterproof reinforcement layer (11, 12) on its upper surface and fixed to a main building (3) that is a roof support structure with hook bolts (5), characterized in that the insulating waterproof reinforcement layer (11, 12) near the head of the hook bolt (5) is removed, a slide-in piece (7s) of the equipment fixing member (7) is inserted between the washer (23) of the nut (21) that screws onto the hook bolt (5) and the slate member (10) of the slate roof (1) to fix the member (7) to the slate member (10), and a sealing treatment is performed on the part where the insulating waterproof reinforcement layer has been removed and in the vicinity thereof.

[0059] The repair method of the present invention involving the installation of equipment fixing members for a slate roof or the like is characterized in that, prior to the work of mounting equipment such as a solar cell module on or outside a slate roof (1), an equipment fixing member (7) for fixing the equipment is installed on the roof, etc., and in combination with this, a foamable resin and a high-strength waterproof resin are sprayed onto the upper or outer surface of the roof (1), etc. to form an insulating waterproof reinforcement layer (11, 12), thereby reinforcing and repairing the roof, etc.

[0060] One specific embodiment of the repair method of the present invention involving the installation of equipment fixing members for a slate roof is a method of installing an equipment fixing member (7) on a slate roof (1) fixed to a main building (3), which is a roof support structure, with hook bolts (5) and repairing the roof, characterized in that a foamable resin and a high-strength waterproof resin are sprayed onto the upper surface of the slate roof (1), including the vicinity of the heads of the hook bolts (5), to form an insulating and waterproof reinforcement layer (11, 12), and then, in accordance with this, a slide-in piece (7s) of the equipment fixing member (7) is inserted between the washer (23) of the nut (21) that screws onto the hook bolt (5) and the slate member (10) of the slate roof (1) to fix the member (7) to the slate member (10).

[0061] This repair method involving the installation of equipment fixing members for slate roofs improves the strength and durability of slate roofs, allowing equipment such as solar cell modules to be installed safely on slate roofs, etc. Furthermore, by forming a heat-insulating, waterproof reinforcement layer, the lifespan of the slate roof is extended, and the indoor temperature environment is improved, reducing air conditioning costs.

[0062] In the repair method for a slate roof according to the present invention, which involves the installation of equipment fixing members, the resin has a quick-drying property that hardens quickly after being sprayed, and workers stand on the formed insulating and waterproofing reinforcement layer (11, 12) or the layer (11) sprayed with the foaming resin to install the equipment fixing members (7) on the slate roof (1) and / or perform the equipment installation work. This method allows the reinforced slate roof to be used as a safe work platform while expanding the area on the roof where layers such as the insulating and waterproofing reinforcement layer are formed, ensuring work safety and increasing work efficiency.

[0063] Spraying the resin in conjunction with the installation of the equipment fixing members (7) (forming the insulating waterproof reinforcement layer (11, 12)) means performing the equipment fixing member installation and spraying (layer formation) work as a single operation, such as installing the equipment fixing members (7) immediately (e.g., 3 to 5 seconds) after spraying the foam resin. At the very least, this means setting up external scaffolding around the roof to be repaired in one go, and performing both tasks while the scaffolding is in place. Note that if the equipment fixing members (7) are installed on the roof before the resin spraying, it may be necessary to use protective tape or caulking to prevent the waterproof layer (12) (coating layer) from adhering to the equipment mounting surface (e.g., top surface 7b) of the equipment fixing members, and then peel or scrape off the protective tape after spraying.

[0064] The insulating and waterproofing reinforcement layer typically consists of two layers: a foamed resin layer (11) and a high-strength dense resin layer (12). The foamed resin can be a resin foaming agent, such as polyurethane resin, phenolic resin, or a mixture of these. For example, a resin based on polyol or polypropylene glycol (PPG) can be used as the base resin. Alternatively, a phenolic resin based on novolac thermoplastic resin, or a mixture of these, can be used as the base resin. These base resins can be mixed with a crosslinker such as isocyanate in a roughly 1:1 ratio to foam, and then fillers, additives, etc. can be added to prepare the spray material. Isocyanate is a non-fluorocarbon foaming agent that reacts with water to generate carbon dioxide gas, which foams the material. More specifically, a special polyurethane foam called "SOSEI Foam" by the applicant can be used as an example. When this material is sprayed onto the surface of the roof, it immediately begins to foam, and within a few tens of seconds, an insulating reinforcement layer, for example, 10 mm or more thick, is formed, which not only provides insulating effects according to the thickness but also acts as an adhesive between the base and the second layer.

[0065] The high-strength dense resin layer (12) is formed by spraying a resin material constituting a reinforced waterproofing layer onto the area of ​​the roof surface where the foamed resin layer (11) is formed. The base material for this material (coating agent) can be, for example, a polyurethane resin primarily composed of polyol and propylene glycol (PPG). A crosslinking agent such as isocyanate can be mixed with this base agent in a mixing ratio of approximately 1:1, and fillers, additives, etc. can be added to form a coating agent. The second high-strength dense resin layer (12) can be, for example, a sprayed layer of a special polyurethane resin called "SOSEI Coat" by the applicant. This layer provides waterproofing and reinforcement effects. The first and second layers cure within a few to 10 seconds after spraying. The insulating, waterproofing, and reinforcement layers (11 and 12) are strong enough to support the weight of, for example, workers and structures used to prevent falls.

[0066] It is preferable to coat the above two layers with a third layer (top layer (13)) of UV-resistant paint. This third layer can be a two-component urethane paint with UV resistance. For example, the third layer can be a spray-applied layer of paint designated by the applicant as "SOSEI Top." This third layer effectively prevents UV degradation of the two lower layers. The third layer is applied by spray application, but the entire three layers can be applied on the same day. This third layer is thin (e.g., 0.1 mm), so even if it adheres to the equipment mounting member, it does not interfere with the installation of the solar cell module. In fact, the third layer also helps prevent rust on the equipment mounting member, making it worthwhile to apply it to the same member.

[0067] The materials for forming these layers are loaded onto a truck or other mobile vehicle, along with a compressor and generator, and transported to the construction site. The materials are then pumped from the compressor through a heater hose to a spray gun that is held and operated by a worker.

[0068] The equipment to be mounted on a slate roof is not limited to solar cell modules (modules). In addition, equipment such as solar cell modules can be mounted on, for example, a slate roof or wall. In addition, equipment such as solar cell modules can be mounted on or outside a slate structure.

[0069] When installing equipment fixing components (7, metal fittings), the insulation layer (foam layer (11)) around the bolt head or part of the packing (25) under the washer (23) may be removed. Also, when installing equipment fixing components (7) on a roof, the insulation waterproofing reinforcement layer may be intentionally cut away. The removed or cut-out areas of the foam layer (11) or other parts are filled and sealed with sealant or caulking, as necessary. It is particularly preferable to seal the removed or cut-out areas with a high-strength urethane waterproofing material, and then coat the surface of the urethane waterproofing material with the third layer (top layer (13)) of the aforementioned UV-resistant paint (this can be done at the same time as spraying the foam layer (11) and coating layer (12) on other general areas).

[0070] The slate roof of the present invention, on which equipment fixing members are installed, is a slate roof (1) having an insulating and waterproofing reinforcing layer (11, 12) on the upper surface and fixed to a main building (3), which is a structure supporting the roof, by fasteners (5, 21), characterized in that it has equipment fixing members (7) engaged with the fasteners (5, 21) and a sealant (14) applied around the base of the equipment fixing members.

[0071] One form of equipment fixing member (7) of the present invention has a heat-insulating waterproof reinforcement layer (11, 12) on its upper surface, and is installed on a roof slate member (10) fixed to a main building (3), which is a roof support structure, with hook bolts (5). The equipment fixing member (7) consists of opposing upper and lower pieces (slide-in piece, 7s) and a vertical piece (back wall, 7j) connecting the end edges of the two pieces. The lower piece (slide-in piece, 7s) has a lower groove (7w) formed therein to receive the head of the hook bolt (5), and is inserted between the slate member (10) and a washer (23) of a nut (21) that screws onto the hook bolt (5). The lower groove (7w) extends in a direction perpendicular to the vertical piece (back wall, 7j), and is open at the end opposite the vertical piece. When this type of equipment fixing member (7) is inserted into the head (5m) of a hook bolt (5) having an insulating foam layer (11) attached thereto, there is a low possibility that part of the insulating foam layer (11) will be removed.

[0072] The above-described embodiment can also exhibit the following characteristics, for example: (1) The strength and durability of slate roofs or walls are improved, allowing solar cell modules and the like to be mounted on the roofs with peace of mind (specifically, damage to the slate roof due to additional loads such as wind pressure on the solar cell modules can be prevented). (2) In addition to installing equipment fixing members (metal fittings) on the roofs, an insulating reinforcement layer can be formed on the upper surface (exterior surface) of the roofs, etc., to structurally strengthen the roofs, etc., and improve their waterproofing and insulation. Furthermore, cracks in the slates and improved waterproofing can prevent leaks. (3) The reinforced slate roofs, etc. can also be used as safe work floors, ensuring work safety and increasing work efficiency.

[0073] Below, other embodiments of equipment fixing members (slide-in fittings) will be described. Figure 13 is a diagram schematically showing a state in which an equipment fixing member (slide-in fitting) 107 of another embodiment is inserted under the packing 25 below the washer 23 of the hook bolt 5, where (A) is a front cross-sectional view and (B) is a plan view taken along the line B-B. Figure 14 is a diagram of the equipment fixing member (slide-in fitting) 107 of the embodiment of Figure 13, where (A) is a perspective view and (B) is a front cross-sectional view.

[0074] Figure 13 shows the hook bolt 5 and the gasket 25, washer 23, and nut 21 fitted onto it. The gasket 25, for example, is made of felted synthetic fiber impregnated with asphalt. The washer 23 is curved to fit the curved surface of the crest of the corrugated slate sheet 10. The slide-in piece (lower piece) 107s of the equipment fixing member (slide-in fitting) 107 (described below) is inserted between the washer 23 and the upper surface of the corrugated slate sheet 10 and tightened with the nut 21, thereby fixing the fitting 107 to the corrugated slate sheet 10 and the bolt 5. It is possible that the gasket 25 may be partially scraped off when the slide-in piece (lower piece) 107s is inserted. The corrugated slate sheet 10 around the equipment fixing member 107 is covered with an insulating foam layer 11 (foam layer) made of a foamable resin material, a waterproof reinforcement layer 12 (coat layer), and a UV-resistant paint layer 13 (top layer). The equipment fixing member 107 consists of opposing upper and lower pieces 107b and 107s, and a vertical piece 107j connecting the ends of the two pieces. As shown in Figure 13(A), the lower piece 107s (slide-in piece) is inserted between the washer 23 of the nut 21 that threads onto the hook bolt 5 and the corrugated slate sheet 10. The lower piece 107s has a lower groove 107w that extends in the insertion direction of the hook bolt 5 and is open at the same end. The upper end (neck) of the hook bolt 5 fits into the lower groove 107w. Near the opening of the lower groove 107w, there is formed a taper 107x that widens toward the mouth in plan view, and a taper 107y that thins toward the mouth in side view, as shown in Figures 14(A) and 13(B).

[0075] The width of the bottom edge 107s in the direction perpendicular to the insertion direction below the washer 23 (left-right direction) is approximately equal to or narrower than the left-right width of the washer 23. Therefore, when inserting the metal fitting 107 after spraying the foam layer 11, the foam layer beside the washer 23 is less likely to be pushed aside (interfered with), thereby preventing damage to the foam layer (such as cracking). As a result, repairs with a sealant after inserting the metal fitting 107 (see reference numeral 14 in FIG. 5 ) require less repair work on the left and right sides of the metal fitting 107 or in the direction before insertion. Here, "the left-right width of the bottom edge 107s of the metal fitting is approximately equal to or narrower than the left-right width of the washer 23" means that the "width of the bottom edge 107s of the metal fitting" may be slightly wider (for example, by about 1 to 2 mm) as long as the degree to which the foam layer can be pushed aside is not an issue.

[0076] As shown in Figure 14(A), the vertical piece 107j of the equipment fixing member (metal fitting) 107 rises from the end of the lower side 107s facing away from the insertion direction (the portion not cut into the lower groove 107w). The length of the connection 107m between this lower side 107s and the vertical piece 107j in the insertion direction is considerably shorter (less than half, for example, approximately 25 mm) than the length of the upper part 107jk of the vertical piece and the lower side 107s. This reduces the amount of foam layer 11 that is displaced by the vertical piece 107j when the metal fitting 107 is inserted under the washer 23 after the foam layer 11 has been sprayed, thereby reducing damage to the foam layer and the effort required to repair it.

[0077] The central portion 107jb of the vertical piece 107j of the metal fitting 107 widens in the insertion direction as it goes up, and the lower edge 107jf of the vertical piece 107 protrudes in the insertion direction as it goes up. The length of the upper portion 107jk of the vertical piece 107j in the insertion direction is the same as the length of the lower edge 107s. The longer upper portion 107jk of this vertical piece 107j increases the rigidity against moments around the left-right axis of the vertical piece 107j. The portion between the ends of the left and right vertical pieces 107j in the non-insertion direction is empty (i.e., there is no wall). This is a major difference from the equipment fixing member 7 of the embodiment shown in Figure 4. This design is intended to minimize damage to the foam layer when sliding the metal fitting.

[0078] The upper pieces 107b of the metal fitting 107 protrude downward from the center of the upper edges 107d of the left and right vertical pieces 107j, respectively, like eaves. In other words, the upper piece 107b is recessed downward in the center in the left-right direction, and a slit 107f is present in the same center. As will be described later with reference to FIG. 15, a bolt 117 for securing the solar cell module passes through the slit 107f. Furthermore, as will be described later with reference to FIG. 16, the top of the upper piece 107b and the outside of the vertical pieces 107j are covered with adhesive tape to prevent paint from adhering (anti-adhesion treatment) when the coating layer 12 is sprayed. The upper piece 107b is angled downward inward to match the mounting shape of the mounting member 120 (a general-purpose product).

[0079] Figure 15 shows a state in which a solar cell panel mounting member 120 is stacked on the slide-in fitting (equipment fixing member) 107 of Figures 13 and 14, with (A) being a perspective view and (B) being a front cross-sectional view. The structure (appearance) of mounting a solar cell module on the slide-in fitting 107 and mounting member 120 will be described later with reference to Figures 19 and 20. The mounting member 120 includes a mounting plate 121 that rests on the slide-in fitting 107, a bolt 127 that passes through the mounting plate vertically and extends upward, a bolt locking piece 123 that locks onto the bolt, and a bolt engaging member (nut) 125. In this embodiment, the mounting plate 121 is a substantially square steel plate, and its top surface 121b is visible in Figure 15(A). The four sides of the mounting plate 121 are formed with left and right flanges 121g that protrude downward from the left and right sides, and front and rear flanges 121k that protrude downward from the sides in the insertion direction and the opposite direction. The left and right flanges 121g prevent the mounting plate 121 from shifting left and right relative to the metal fittings 107. The front and rear flanges 121k are intended to prevent the mounting member 120 (general-purpose product) from shifting.

[0080] The mounting plate 121 rests on the upper end of the vertical piece 107j of the slide-in fitting 107 and on the intersection 107d between the left and right ends of the upper piece 107b. A bolt through-hole (not shown) is drilled in the center of the mounting plate 121. A bolt 127 passes vertically through the hole and the slit 107f in the fitting 107 and extends upward. A bolt locking piece 123 is located below the mounting plate 121 and is engaged with the bolt 127 and abuts against the underside of the upper piece 107b of the fitting 107. The bolt locking piece 123 is threadedly engaged with the bolt 127 (having a threaded hole) and, in cooperation with a nut 125, clamps the mounting plate 121 and secures it on the intersection 107d of the fitting 107. The bolt locking piece 123 is curved downward in front view. This is to ensure that the upper pieces 107b of the equipment fixing member 107 come into contact with and are hooked onto the lower sides of both upper pieces 107b in accordance with the downward inclination of the upper pieces 107b of the equipment fixing member 107.

[0081] FIG. 16 is a perspective view showing a slide-in fitting 107 after treatment (curing) to prevent the coating layer 12 from adhering to the fitting 107. In this figure, the equipment fixing member (slide-in fitting) 107 is inserted under the washer below the foam layer 11 immediately after the foam layer 11 is sprayed (as shown in FIG. 13A without the coating layer 12 and top layer 13). Then, adhesive tape pieces 129 are attached to the top of the upper piece 107b of the fitting 107 and to the outside of the vertical piece 107j. Note that for clarity, the edge of the upper piece 107b of the fitting 107 is shown exposed in FIG. 16, but in reality, it is covered by the tape pieces 129. After this, the coating layer 12 is sprayed onto the foam layer 11. During this process, the spray (paint) also falls on the fitting 107, but the adhesive tape pieces 129 prevent the coating layer 12 from adhering to the fitting 107 (adhesion prevention treatment has been performed). Therefore, there is no problem in placing the solar cell panel mounting member 120 on the mounting member 107. The tape 125 is peeled off after the coating layer 12 is sprayed (the top layer 13 is thin, for example, 0.1 mm thick, so there is no problem even if it adheres to the metal fittings 107).

[0082] Figure 17 is a perspective view of another modified example of a fixture (slide-in fitting) 207. This slide-in fitting 207 consists of a lower piece 207s, a vertical piece 207j rising from the end opposite the insertion direction of the lower piece 207s, and a bolt 217 welded to the lower piece 207s. In this example, the lower piece 207s is a roughly square steel plate with a groove 207w cut into it. The vertical piece 207j is a slightly elongated rectangular steel plate. Both pieces can be formed by bending a single steel plate. The lower groove 207w of the lower piece 207s extends in the insertion direction and is open at the end in that direction. As with the embodiment shown in Figure 13, the lower piece 207s is inserted between the washer 23 of the nut 21 that threads onto the hook bolt 5 and the corrugated slate sheet 10. The upper end (neck) of the hook bolt 5 fits into the lower groove 207w. The width of the bottom side 207s in the example of FIG. 17 in the direction perpendicular to the insertion direction (left-right direction) is also approximately equal to or narrower than the width of the washer 23 in the left-right direction.

[0083] The features of the equipment fixing member 207 in Figure 17 compared to the equipment fixing member 107 in Figure 15 are that the structure is simple and inexpensive, and that there is no vertical piece (see 107j in Figure 14) extending in the insertion direction, so there is no part that pushes aside the foam layer when the metal fittings are inserted. Also, as will be described below, it is easy and less time-consuming to apply protective measures to prevent the coating layer from adhering to the metal fittings.

[0084] Figure 18 shows another modified example of a slide-in fixture 307, with (A) being a perspective view and (B) being a schematic diagram of the protective layer during spraying. This fixture 307 consists of a lower piece 307s (with a groove 307w), a vertical piece 307j rising from the end opposite the insertion direction, and a bolt 317 welded to the lower piece. In this example, the vertical piece 307j is shorter than the example in Figure 17 , and its upper edge 307jb has an upwardly convex arc shape. In this example, a PVC cap (pipe) 322 is placed over the bolt 317 to protect it during spraying. This cap 322 prevents the coating from adhering to the bolt 317. After spraying, the cap 322 is removed to expose the threads of the bolt 317, after which the solar cell module is installed.

[0085] The equipment fixing members 107, 207, and 307 in Figures 13 to 18 can be applied to any of work processes A to D (Figures 7 to 10). That is, they can be applied to the process of inserting the equipment fixing member between the washer 23 of the nut 21 that screws onto the hook bolt 5 and the corrugated slate sheet 10 after spraying the foam layer, as well as to work processes in the reverse order (inserting the equipment fixing member first and then spraying the foam layer). When inserting the equipment fixing member after spraying the foam layer, it is preferable to press the equipment fixing member against the foam layer next to the hook bolt 5 immediately after spraying the foam layer, pushing the soft foam layer to the side, and then inserting it.

[0086] Figure 19 is a perspective view of a solar cell module 401 installed on a slate roof 1. Figure 20 is an enlarged perspective view of the slide-in bracket 7 and connecting brackets 411-415 in the solar cell module installation state shown in Figure 19 . (A) shows the brackets securing the module ends, and (B) shows the brackets securing two adjacent modules with a set of brackets. Figure 19 shows a slate roof 1 with a corrugated slate sheet 10 and the sprayed layers 11 (foam layer, insulating foam layer, foam resin layer, insulating waterproof reinforcement layer), 12 (coating layer, waterproof reinforcement layer, high-strength dense resin layer, insulating waterproof reinforcement layer), and 13 (top layer, UV-resistant paint layer). On the slate roof 1, a number of slide-in brackets (equipment fixing members) 7, essentially the same as those shown in Figures 1-4, are arranged in a row. Figure 19 shows two solar cell modules 401 and 401' adjacent to each other along the eaves (in reality, many more modules are arranged vertically and horizontally).

[0087] In the state of the fittings fixing the module ends shown in Figure 20 (A), a first fitting 411, a second fitting 413, and a third fitting 415 are placed on top of the slide-in fitting 7, which are then fixed to the slide-in fitting 7 with bolts 17 and nuts and washers 419. These first, second, and third fittings 411, 413, and 415 are general-purpose products (commercially available) for installing solar cell modules. An end 415b of the top third fitting 415 is the part that presses down on the top surface of the end of the solar cell module 411. The bottom first fitting 411 is a member that rests on top of the slide-in fitting 7 and prevents lateral movement. The middle second fitting 413 is a member that fixes the end module.

[0088] In the state of the fittings fixing both ends of two adjacent modules shown in FIG. 20(B), a first fitting 411 and a third fitting 415 are placed on top of the slide-in fitting 7, which are then fixed to the slide-in fitting 7 with bolts 17 and nuts and washers 419. Ends 415b and 415b' of the top third fitting 415 are used to press down on the upper surfaces of the ends of the two adjacent solar cell modules 411 and 411'. The bottom first fitting 411 is placed on the equipment fixing member 7 and is a member that prevents lateral movement. In the example shown in FIGS. 19 and 20, the solar cell module 401 is installed using the slide-in fitting (equipment fixing member) 7, but the solar cell module 401 may also be installed using the slide-in fitting (equipment fixing member) 7' shown in FIG. 4(B) or the slide-in fittings (equipment fixing members) 107, 207, and 307 shown in FIGS. 13 to 18 instead of the slide-in fitting (equipment fixing member) 7. Although the bolt 17 is not shown in the slide-in fitting (equipment fixing member) 7' in Figure 4(B), as with the slide-in fitting (equipment fixing member) 7 in Figure 4(A), it is possible to attach the bolt 17 to the slide-in fitting (equipment fixing member) 7' by attaching the bolt 17 to an upper groove 7f cut into the upper piece 7b, or by attaching the bolt 17 to the upper piece 7b by welding, etc.

[0089] In this way, solar cell modules can be installed on a corrugated slate roof 1 using the slide-in fittings (facility fixing members) of the present invention and general-purpose module fixing fittings. Furthermore, because the slate roof 1 is reinforced with foam and coating layers, solar cell modules can be installed on the slate roof without concerns about strength or unexpected premature deterioration. The corrugated slate sheet 10 only bears the force pushing down on the solar cell module (the force causing it to collapse) (the force pulling it up is borne by the fittings, hook bolts 5, and purlins 3). Therefore, the reinforcement provided by the foam and coating layers around the slide-in fittings sufficiently strengthens the crushing strength of the corrugated slate sheet.

[0090] Another aspect of the present invention will now be described. Here, the problem to be solved by the invention is to improve the attachment strength (increase in pull-out strength) of an equipment fixing member to a structure (such as a corrugated slate sheet 10). Another "method for installing an equipment fixing member on a structure" of the present invention is a method for attaching an equipment fixing member to a structure fixed to a support structure with a locking member and a fastener, characterized in that the equipment fixing member is formed with a slide-in piece that has a groove for receiving the locking member and is inserted between the structure and the fastener, the slide-in piece being inserted between the structure and the fastener until the locking member reaches the back of the groove, and then the slide-in piece being rotated by a desired angle. A more specific "method for installing an equipment fixing member on a structure" of the present invention, which is related to the same problem to be solved, is a method for attaching an equipment fixing member to a corrugated slate plate fixed to a main building with a hook bolt and a fastener, characterized in that the equipment fixing member is formed with a slide-in piece that has a groove for receiving the hook bolt and is inserted between the corrugated slate plate and the fastener, the slide-in piece being inserted between the corrugated slate plate and the fastener until the hook bolt reaches the back of the groove, and then the slide-in piece being rotated by a desired angle. Another "method for installing an equipment fixing member on a structure" of the present invention, which is related to the same problem to be solved, is a method for attaching an equipment fixing member to a structure fixed to a support structure with a locking member, the method comprising: forming a slide-in piece with a groove extending in a first direction, through which the locking member passes, in the equipment fixing member; inserting the slide-in piece between the structure and the fastener while sliding the locking member in the first direction in the groove, thereby fixing the equipment fixing member to the structure; forming a pocket portion at the back of the groove that is bent in a second direction intersecting the first direction; inserting the slide-in piece until the locking member reaches the back of the groove, and then sliding the slide-in piece in the direction opposite to the second direction, thereby inserting the locking member into the pocket portion.According to these "methods for installing an equipment fixing member on a structure," the locking member (such as hook bolt 5) is less likely to come out of the grooves (507w and 607w) of the slide-in pieces (507s and 607s), improving the attachment strength of the equipment fixing member (such as a solar panel) to the structure (such as a corrugated slate sheet 10) (increasing pull-out strength). In these "methods for installing an equipment fixing member on a structure," it is preferable to connect a box section on which the equipment is placed and fastened to the slide-in piece of the equipment fixing member to increase the rigidity of the slide-in piece and the pull-out strength of the slide-in piece. Increasing the rigidity of the slide-in piece makes it even more difficult for the locking member to come out of the groove.

[0091] Another equipment fixing member of the present invention is an equipment fixing member for mounting and fixing equipment to a structure fixed to a support structure with a locking member, characterized by comprising: a box portion on which the equipment is placed and fastened; and a slide-in piece connected to the box portion and having a groove through which the locking member passes, which is inserted between the structure and the fastener of the locking member. The box portion has a wall, such as a ribbed wall, rising from the connecting edge of the slide-in piece, thereby increasing the bending rigidity of the slide-in piece and increasing the pull-out strength in the direction opposite to the insertion direction. Another equipment fixing member of the present invention may also have a pocket portion formed at the back of the groove that bends in a direction intersecting the insertion direction of the slide-in piece. After inserting the slide-in piece, positioning (inserting) the locking member in the pocket portion can prevent or suppress the slide-in piece from coming out. The equipment fixing member of the present invention may have an open top of the slide-in piece. Spraying a foam layer after installation of the equipment fixing member is easy. In particular, a sprayed layer such as a foam layer is distributed around the fastening members (e.g., hook bolts 5) and their fastening members, allowing for easy penetration and ensuring waterproofing. Note that the phrase "open at the top" does not necessarily mean that ribs may be present on the side or rear edges. The equipment fixing member of the present invention can be configured so that, when fully installed, the center of the box section is positioned above the peaks of the corrugated slate sheet. In this case, downward pressure from the mounted equipment on the box section is transmitted to the corrugated slate sheet without applying a bending moment to the equipment fixing member. This increases the strength of these components. In the equipment fixing member of the present invention, a vertical piece is preferably formed on the edge opposite to the insertion direction of the slide-in piece, intersecting the insertion direction, so as to rise from the edge. This vertical piece is preferably connected to the rear wall of the box section. These vertical pieces and the rear wall act as rising ribs, preventing the slide-in piece from bending upward when a force that lifts the box section (such as a solar panel being lifted by wind) is applied.

[0092] An equipment fixing member 507 according to a third embodiment of the present invention and its installation method will be described with reference to FIGS. 21 and 22 . FIG. 21 is a perspective view showing an equipment fixing member (slide-in fitting) 507 according to the third embodiment. (A) shows the state before the equipment fixing member 507 is engaged with the hook bolt 5, (B) shows the state in which the slide-in piece 507s is inserted under the washer 23 and packing 25 of the hook bolt 5, and (C) shows the state in which the equipment fixing member 507 is rotated 90 degrees. FIG. 22 shows the equipment fixing member 507 of FIG. 21 , with (A) being a perspective view, (B) being a plan view, and (C) being a front view. The equipment fixing member 507 in each of FIGS. 21 and 22 includes a box portion (507b) on which the equipment (401) is placed and fastened, and a slide-in piece (507s) connected to the box portion (507b), and thus is an embodiment of the equipment fixing member of the present invention as defined in claim 20 at the time of filing the PCT application. The "method of installing an equipment fixing member on a structure" shown in Figures 21(A), 21(B), and 21(C) involves inserting the slide-in piece (507s) between the structure (10) and the fastener (21 / 23) until the locking member (5) reaches the back of the groove (507W), and then rotating the slide-in piece (507s) by a desired angle. This is an embodiment of the method of the present invention as defined in claim 16 of the PCT application. In each figure, the "vertical direction" refers to the direction in which the hook bolt 5 securing the corrugated slate sheet 10 extends (close to the direction of Earth's gravity). The front-to-rear direction refers to the longitudinal direction of the peaks of the corrugated slate sheet 10 (toward the eaves ridge) (the direction opposite to the insertion direction of the slide-in piece 507s). The "left-to-right direction" refers to the direction perpendicular to the vertical and rear-to-rear directions.

[0093] The equipment fixing member 507 of the third embodiment is used to mount and fix equipment 401 (such as a solar cell panel 401, see Figure 19) to a corrugated slate sheet 10 (a structure) on a roof. In this example, the corrugated slate sheet 10 is fixed to a structural body (main building 3, see Figures 2 and 3) that supports the building with a locking member 5 (hook bolt). The equipment fixing member 507 consists of a box section 507b on which the solar cell panel 401 is placed and fastened, and a slide-in section 507p with a groove 507W connected to the box section. The slide-in section 507p has a plate-shaped slide-in piece 507s (with a groove 607W) that is inserted between the corrugated slate sheet 10 and the fasteners (nut 21 and washer 23) of the hook bolt 5.

[0094] The slide-in portion 507p consists of a rectangular lower piece (slide-in piece) 507s and a vertical piece 507r rising from its rear. A lower groove 507w is cut into the center of the lower piece 507s, extending toward the front (eaves ridge) of the lower piece 507s. The lower groove 507w is open at the front and closed at the rear (toward the vertical piece 507r). This lower piece (slide-in piece) 507s is inserted between the washer 23 of the hook bolt 5 and the top surface of the corrugated slate sheet 10 (see Figure 24), securing the metal fitting 507 to the slate roof 1. The hook bolt 5 passes vertically through the lower groove 507w. The slide-in piece 507s near the open end of the groove 507w is tapered (chamfered 507t) to facilitate insertion under the washer 23.

[0095] The vertical piece (wall) 507r rises from the rear edge of the lower piece 507s. In practice, it is advantageous from a manufacturing cost perspective to fabricate the vertical piece 507r and the lower piece 507s by bending a single steel plate. The height of the vertical piece 507r is, for example, approximately 1 to 1.5 cm (the dimensions of the lower piece 507s are, for example, 3 cm x 3.5 cm). Since the vertical piece 507r is hammered during insertion, a reasonable height is desirable. It also serves to increase the bending rigidity of the slide-in portion 507p around the front and rear axes. However, the height of the vertical piece 507r is shorter than the height of the box portion 507b (in this example, approximately half). The reason for setting the height of the vertical piece 507r in this way is to make it easier to fill the metal protrusions (ribs) with the insulating foam layer.

[0096] The box section 507b is connected to the left or right side 507j of the slide-in piece 507s. In this example, the box section 507b is a hollow rectangular parallelepiped that is elongated in the front-to-rear direction. Each wall (surface) of the box section 507b is typically made of bent and welded steel plate (e.g., 2 mm thick). The walls of the box section 507b may also be made by bending the same steel plate as the slide-in section 507p. The lateral wall 507h is firmly connected to the side 507j of the slide-in piece 507s. This creates a high rib on the slide-in piece 507s, suppressing warping of the lower piece 507s (increasing the pull-out and upward tensile strength of the slide-in section 507p, as described below with reference to Figure 23). Generally speaking, the box section 507b is a rigid member that is resistant to deformation due to forces applied by the solar panel (equipment), such as pull-up forces, push-down forces, and lateral shear forces. Furthermore, due to the rigidity of the box portion 507b, the slide-in portion 507p is also less likely to deform and slip out from under the washer 23.

[0097] In this example, the other walls of the box section 507b, including the front wall 507f, rear wall 507m, left side wall 507d, top plate 507c, and bottom wall, are also made of steel plate. Note that some walls, such as the bottom wall, may be omitted. The top plate 507c is the portion on which the support and fixing portion of the mounted equipment (panel) rests and is fixed. Note that other walls may also be used to support and fix the mounted equipment. In this example, a single hole 507k is formed in the top plate 507c. The back wall 507m ( FIG. 21(C) ) of the box section 507b is firmly connected to the vertical piece 507r of the slide-in section 507p (it may be a single piece). These back wall 507m and vertical piece 507r form upright ribs that prevent the slide-in piece (lower piece) 507s from bending upward when a force is applied that lifts the box section 507b upward (such as a force that lifts a solar panel in the wind).

[0098] The edge of the slide-in piece of the bottom plate 507n (Fig. 21(C)) of the box section 507b is firmly connected to the edge of the slide-in piece 507s (it may be a single piece). The bottom surface of the box section bottom plate 507n is flush with the bottom surface of the slide-in piece 507s (they are at the same height). This allows the bottom of the box section 507b to fit snugly on the top of the corrugated slate sheet 10 when the equipment fixing member 507 is rotated 90 degrees as shown in Fig. 21(C).

[0099] Next, a method for attaching the equipment fixing member 507 shown in Figures 21 and 22 to the corrugated slate sheet 10 and hook bolt 5 will be described. The equipment fixing member 507 of this third embodiment is basically intended to be attached to a corrugated slate sheet 10 without a foam layer. First, as shown in Figure 21 (A), the slide-in portion 507p is placed on the member 507 so that the open entrance 507x on the front side of its lower groove 507w faces the washer 23 of the hook bolt 5 to be inserted, and the longitudinal direction of the groove 507w is aligned along the top of the corrugated slate sheet 10. Then, the chamfers 507t on both sides of the groove entrance 507x are positioned to be inserted under the washer 23.

[0100] Then, as shown in Figure 21(B), the back of the vertical piece 507r of the metal fitting 507 is struck with a hammer 590 or similar tool, and the slide-in piece (lower piece) 507s is inserted (driven) between the washer 23 and the top surface 10b of the corrugated slate sheet 10. At this time, the shaft of the hook bolt 5 enters the lower groove 507w of the metal fitting 507. The hook bolt 5 is then inserted until it reaches the back 507z of the groove 507w. Note that "back 507z" does not only mean "strictly the deepest part" but also "toward the back" or "near the back." Next, the back side of the box portion 507b in Figure 21(B) (e.g., the back side of the left side wall 507d) is struck with a hammer 590' to the right in the figure, and the entire equipment fixing member 507 is rotated 90 degrees around the hook bolt 5 as shown in (C). This completes the installation of the equipment fixing member 507 itself to the corrugated slate sheet 10. In this example, when the installation is complete, the center of the box section 507b is located above the ridge 10m of the corrugated slate sheet 10. As a result, the downward force of the mounted equipment acting on the box section 507b is transmitted to the corrugated slate sheet 10 without applying a bending moment to the equipment fixing member 507. If a foam layer or the like is sprayed around the equipment fixing member 507 in the state shown in Figure 21 (C), the corrugated slate sheet 10 will be waterproofed, strengthened, and insulated. This state will be described later with reference to Figure 24.

[0101] The action and effect (improved pull-out (lift-up) resistance) of the equipment fixing member 507 of the third embodiment and its installation method will be described with reference to Figure 23. Figure 23 is a side cross-sectional view that shows a schematic diagram of the behavior of the equipment fixing member when an abnormal pull-out (lift-up) force is applied to the equipment fixing member. (A) shows the case of a general-purpose metal fitting, and (B) shows the case of the equipment fixing member 507 of this embodiment.

[0102] The equipment fixing member 7 shown in Figure 23(A) is based on a general-purpose metal fitting and is similar to the equipment fixing member 7 in Figure 4(A) and is in a state of deformation due to upward pulling. Note that the illustration is a schematic and exaggerated representation, and some deformation may differ from the actual state. Furthermore, if there are enough equipment fixing members 7, it is unlikely that the situation shown in this figure will occur even if a predicted force is applied to the installed equipment (such as in the case of a large typhoon). Furthermore, Figure 23 shows the equipment without a foam layer sprayed on it, and a foam layer would be even more advantageous in terms of strength. In Figure 23, a solar panel (not shown) is being lifted upward by an abnormal force due to wind or other factors, and the panel mounting bolt 17 is being pulled upward by the abnormal force. As a result, the lower piece 7s of the metal fitting 7 is lifted at its rear end and bent upward. The lower piece 7s is partially removed from between the washer 23 and the top surface of the corrugated slate sheet 10.

[0103] In the case of the equipment fixing member 507 of the third embodiment shown in Figure 23(B), even if a similar pulling force is applied to the panel mounting member 517, the situation shown in Figure 23(A) is unlikely to occur. The reasons for this are as follows: (1) The box portion 507b of the equipment fixing member 507 itself is highly rigid, and the connection between the box portion 507b and the slide-in portion 507p is also highly rigid, making the box portion 507b and the slide-in portion 507p less likely to deform. The rib effect created by the connection between the box portion 507b and the vertical piece 507r of the slide-in portion 507p also contributes to suppressing deformation of the slide-in portion 507p. (2) Because the slide-in portion 507p is inserted under the washer 23 of the hook bolt 5 and then turned 90 degrees, the shank 5x of the bolt 5 is in contact with the walls of the slide-in portion groove 507w on both the front and back sides, making it difficult for the slide-in portion 507p to come out of the bolt 5.

[0104] Referring to Figure 24, we will explain the state in which the foam layer 11, coating layer 12, and top layer 13 are spray-formed (painted) around the equipment fixing member 507 after the slide-in portion 507p is inserted and rotated, and the painting method. Figure 24 is a schematic front cross-sectional view of this state. In the state shown in Figure 24, the equipment fixing member 507 is in the state shown in Figure 21(C) (viewed from a 90-degree angle). That is, the slide-in portion 507p is inserted into the lower part of the washer 23 (the packing 25 is not shown). The shaft 5z of the hook bolt 5 is located at the back of the groove 507w. The groove 507w extends left-right in Figure 24 (perpendicular to the crest direction of the corrugated slate sheet 10). This is because the longitudinal direction of the groove 507w was aligned with the crest direction of the corrugated sheet when inserted, but was then rotated 90 degrees after insertion.

[0105] Before spraying the foam layer, adhesive tape 529 or other adhesive removal treatments are applied to the top surface of the box section 507b of the equipment fixing member 507 (tape may be applied before installation). A foamable resin material is then sprayed onto the corrugated slate sheet 10 around the equipment fixing member 507 to form an insulating foam layer 11 (foam layer, e.g., approximately 10 mm or thicker). Next, a waterproof reinforcement layer 12 (coat layer, e.g., 1 to 2 mm thick) is sprayed onto the foam layer 11. The spray agent adhesion prevention treatment (adhesive tape 529) is then removed. A UV-resistant anti-degradation paint layer 13 (top layer, e.g., thickness in 0.1 mm increments) is then sprayed.

[0106] In the example of Figure 24, the slide-in portion 507p, including the rear vertical piece 507r, is buried in the foam layer 11. The washer 23 is also covered with the foam layer 11. Below the lower piece 507s of the slide-in portion 507p, a foam layer 11x is inserted between the lower surface of the slide-in portion 507p and the upper surface of the corrugated slate sheet 10. This cover with the foam layer 11 prevents rainwater from leaking downward through bolt holes 10z and the like in the corrugated slate sheet 10.

[0107] 25 is a perspective view of an equipment fixing member 507' according to a modification of the third embodiment. In this member 507', two holes 507k' for fixing equipment are opened in the upper plate 507c' of the box portion 507b'. Therefore, it may be possible to accommodate the attachment of new solar cell modules (such as perovskite solar cells) that are expected to appear in the future.

[0108] The tensile strength test results for the equipment fixing member 507 of the third embodiment are described below. The test equipment used was the "Techno Tester Simple Tensile Tester R-10000ND" manufactured by Sanko Techno Co., Ltd., a "Building Research Institute-type Adhesion Tester" (developed under the guidance of the Building Research Institute of the Ministry of Construction). This tester was installed on a steel plate laid on a large-wave slate roofing material. The test subjects were the equipment fixing member 507 corresponding to that shown in Figures 21 and 22, and a comparative equipment fixing member 7 (commercially available) corresponding to that shown in Figure 4(A), which was installed on the large-wave slate roofing material. Then, bolts were fastened to the equipment fixing holes 507k in the box section upper plate 507c of the member 507 of the third embodiment, and the bolts and bolt 17 shown in Figure 4(A) were pulled up using the testing machine. The test was performed without the application of a foam layer or other components.

[0109] For the comparative equipment fixing member 7 (based on a commercially available product), the tensile strength was measured as the maximum tensile force until the lower piece 7s was pulled out from under the washer 23. For the equipment fixing member 507 of the third embodiment, the tensile strength was measured as the maximum tensile force until the hook portion 5b (see Figure 2) on the attachment surface between the hook bolt 5 and the purlin 3 began to deform. In one example test, the commercially available equipment fixing member 7 had a tensile strength of approximately 2500 N (approximately 250 kgf), while the equipment fixing member 507 of the third embodiment had a tensile strength of approximately 3200 N (approximately 320 kgf). In other words, the third embodiment had a tensile strength approximately 1.3 times that of the commercially available product, demonstrating its high strength. Note that the commercially available equipment fixing member 7 is not unsuitable for installing solar panels on slate roofs.

[0110] The following describes the process for repairing and installing equipment on a slate roof using the equipment fixing member 507 of the third embodiment. The equipment fixing member 507 of the third embodiment is suitable for repairing slate roofs using patterns B ( FIG. 8 ) and C ( FIG. 9 ), in which the equipment fixing member 507 (metal) is attached to the corrugated slate sheet 10 and then a foam layer or other coating is sprayed on. This is because a solidified foam layer around the metal makes it difficult to rotate. Furthermore, because the slide-in portion 507p is not covered (open) by an upper piece (such as the metal fitting 7 (107b) in FIG. 4 or the metal fitting 107 (107b) in FIG. 14, a ceiling or cover), it is easy to spray a foam layer around the head of the hook bolt 5 and the washer 23 after the metal fitting is attached. Furthermore, even when installing an equipment fixing member on a roof that has already been constructed with a foam layer, such as a D pattern (Figure 10), the equipment fixing member 507 of the third embodiment can be installed by making the incision area of ​​the foam layer (insulating foam layer) wider.

[0111] FIG. 26 is a diagram of an equipment fixing member 607 according to a fourth embodiment. (A) is a perspective view, and (B) is a plan view. In FIG. 26, parts with reference numerals corresponding to those in FIG. 21 but increased by 100 indicate similar components. A feature of the equipment fixing member 607 in FIG. 26 is that a pocket portion 607y is provided at the back of the groove 607w of the lower piece 607s of the slide-in portion 607p. The pocket portion 607y bends from the back of the groove in a direction intersecting the insertion direction of the slide-in piece 607s (the direction toward the front in the figure). When attaching the equipment fixing member 607 to a corrugated slate sheet 10 (structure), the slide-in piece 607s is inserted until the shank 5z of the hook bolt (locking member) 5 reaches the back 607z of the groove 607w, and then the piece 607s is slid sideways (to the left in the figure) to position the bolt shank 5z in the pocket portion 607y. In this fourth embodiment, unlike the third embodiment, the equipment fixing member 507 is not rotated but is displaced laterally, thereby increasing the options for operation modes.

[0112] The above-mentioned "direction intersecting the insertion direction of the slide-in piece 607p" is typically a direction bent at a right angle to the insertion direction (longitudinal direction, back-to-front direction) of the groove 607w. Alternatively, the tip (deep part) of the pocket portion 607y can be inclined slightly toward the groove entrance 607x. In this case, when a force directed toward the groove depth 607z is applied to the equipment fixing member 507, the bolt shank 5z tends to be difficult to remove from the pocket portion 607y. Note that the "deep part of the groove 607w" does not necessarily mean the "innermost part of the groove 607w" but also includes the vicinity thereof.

[0113] In this example, the pocket portion 607y is formed so as to recess from the depth 607z of the groove 607w to the right side of the figure. As shown by the imaginary line in Figure 26(B), the pocket portion 607y is sized to fit the shank 5z of the hook bolt 5. By positioning the bolt shank 5z in this pocket portion 607y, the slide-in piece 607p can be prevented from slipping out when a force is applied to the slide-in piece 607p in the depth direction. When an upward force is applied to the box portion 507b, a force is applied to pull the slide-in piece 507p in the depth direction. Even in this case, the bolt shank 5z hits the wall in front of the pocket portion 607y, preventing the slide-in piece 607p from sliding. In this example, the box portion 607b is located on the far side of the slide-in piece 607p. Therefore, the box portion 607b can be positioned above the top of the corrugated slate sheet 10. In this case, a vertical piece 607r can be erected like a rib on either the left or right side of the slide-in piece 607s to increase the rigidity of the slide-in piece and to ensure a striking area when the slide-in piece is shifted laterally.

[0114] This section explains how to prevent damage to a corrugated slate sheet when inserting a slide-in piece into the corrugated slate sheet that has deteriorated over time. As shown in Figure 21, when a hammer 590 strikes the slide-in portion 507p, the hammer 590 may strike the top surface of the corrugated slate sheet 10. To prevent this damage, it is preferable to attach a cover (a curved plate) that conforms to the top surface of the corrugated slate sheet 10 to the area on the top surface of the corrugated slate sheet 10 where the hammer 590 moves. It is also preferable to apply or place a lubricant (such as a penetrating type) on the slide-in portion 507p or under the washer 23 and packing 25.

Claims

1. A repair method for a slate structure that involves installing an equipment fixing member, which is characterized by installing an equipment fixing member to fix the equipment on the slate structure prior to the work of mounting the equipment on or outside the slate structure, and then spraying a foamable resin and a high-strength resin onto the top or outer surface of the slate structure.

2. A method for installing an equipment fixing member on a slate structure fixed with hook bolts to a main building, which is a supporting structure for the structure, and for repairing the slate structure, comprising spraying a foamable resin and a high-strength resin onto the upper surface of the slate structure, including the vicinity of the heads of the hook bolts, and at the same time, inserting the slide-in piece of the equipment fixing member between the washer of the nut that screws onto the hook bolt and the slate member of the slate structure, thereby fixing the equipment fixing member to the slate member.

3. A method for installing an equipment fixing member on a slate structure that has a structural reinforcing layer on its top or outer surface that reinforces the structure and is fixed with fasteners to a main building that is a structural element that supports the structure, comprising the steps of: removing the structural reinforcing layer near the fasteners; engaging the equipment fixing member with the fasteners to fix the equipment fixing member to the slate structure; and applying a sealing treatment to the portion where the structural reinforcing layer has been removed.

4. A method for installing an equipment fixing member on a slate structure that has a structural reinforcing layer on its top or outer surface that reinforces the structure and is fixed with a hook bolt to a main building that is a structure that supports the structure, comprising the steps of: removing the structural reinforcing layer near the head of the hook bolt; inserting a slide-in piece of the equipment fixing member between the washer of a nut that screws onto the hook bolt and a slate member of the slate structure to fix the equipment fixing member to the slate member; and applying a sealing treatment to the portion where the structural reinforcing layer has been removed.

5. A method for repairing a slate structure involving the installation of an equipment fixing member as described in claim 1 or 2, characterized in that the resin and the high-strength resin have quick-drying properties that allow them to solidify quickly after being sprayed, and a worker stands on a layer of the high-strength resin sprayed on top of the resin, or on a layer of the resin sprayed on top, and performs the work of attaching the equipment fixing member to the slate structure and / or the work of installing the equipment.

6. A method for repairing a slate structure involving the installation of an equipment fixing member as described in claim 1 or 2, characterized in that the layer onto which the resin and high-strength resin are sprayed includes two layers: a foam layer applied to the upper surface of the slate structure and a reinforcing layer applied on top of that, and the foam layer and reinforcing layer are not applied to the engaging portion of the equipment fixing member with the equipment.

7. A method for repairing a slate structure involving the installation of an equipment fixing member as described in claim 1 or claim 2, characterized in that a layer of ultraviolet-resistant paint is applied on top of the layer onto which the resin and high-strength resin are sprayed, and that this paint layer is also applied on the engaging portion of the equipment fixing member with the equipment.

8. A slate structure having a structure reinforcing layer on its upper surface that reinforces the structure and fixed with fasteners to a main building that is a structural member that supports the structure, characterized in that it has an equipment fixing member engaged with the fasteners, and a sealant applied around the base of the equipment fixing member.

9. An equipment fixing component that has a structure reinforcing layer on its upper surface that reinforces the structure and is installed on a slate member of a slate structure that is fixed with hook bolts to a main building that is a structural element that supports the structure, and that consists of opposing upper and lower pieces and a vertical piece that connects the end edges of both pieces, and the lower piece has a lower groove formed in it that accepts the head of the hook bolt, and is inserted between the slate member and the washer of the nut that screws onto the hook bolt, and the lower groove extends in a direction perpendicular to the vertical piece and is open at the end opposite the vertical piece.

10. An equipment fixing member as described in claim 9, characterized in that the width of the lower edge in a direction (left-right direction) perpendicular to the insertion direction between the washer and the slate member is approximately equal to or narrower than the left-right width of the washer.

11. An equipment fixing component that has a structure reinforcing layer on its upper surface that reinforces the structure and is installed on a slate member of a slate structure that is fixed with hook bolts to a main building that is a structure that supports the structure, and that consists of opposing upper and lower pieces and a vertical piece that connects the ends of both pieces, and the lower piece has a lower groove that extends in the insertion direction of the hook bolt and is open at the end in the same direction, and is inserted between the washer of the nut that screws onto the hook bolt and the slate member, and the width of the lower edge in the direction perpendicular to the insertion direction between the washer and the slate member (left-right direction) is approximately equal to or narrower than the width of the washer in the left-right direction.

12. An equipment fixing member as described in claim 11, characterized in that the connection portion between the vertical piece and the lower edge is formed at the end of the lower edge opposite the insertion direction, and the length of the connection portion in the insertion direction is shorter than the length of the upper part of the vertical piece and the lower edge.

13. The equipment fixing member according to claim 11, wherein a space is formed between the left and right vertical pieces.

14. An equipment fixing member according to claim 11, characterized in that the center portion of the upper piece in the left-right direction is recessed downward, and an upper piece groove is formed in the center portion.

15. An equipment fixing member according to any one of claims 9 to 14, further comprising: a support plate that rests on the upper end of the vertical piece and on the intersection of the left and right ends of the upper piece; a bolt that passes vertically through the support plate and the upper piece groove and extends upward; a bolt locking piece that is locked to the bolt and abuts against the underside of the upper piece; and a bolt engaging member that engages with the bolt and cooperates with the bolt locking piece to fix the plate on top of the intersection.

16. A method for attaching an equipment fixing member to a structure fixed to a support structure with a locking member and a fastener, comprising forming a slide-in piece on the equipment fixing member with a groove for receiving the locking member and to be inserted between the structure and the fastener, inserting the slide-in piece between the structure and the fastener until the locking member reaches the back of the groove, and then rotating the slide-in piece by a desired angle.

17. A method for attaching an equipment fixing member to a corrugated slate plate fixed to a main building with a hook bolt and a fastener, comprising forming a slide-in piece on the equipment fixing member with a groove for receiving the hook bolt and to be inserted between the corrugated slate plate and the fastener, inserting the slide-in piece between the corrugated slate plate and the fastener until the hook bolt reaches the back of the groove, and then rotating the slide-in piece by the desired angle.

18. A method for attaching an equipment fixing member to a structure fixed to a support structure by a locking member, comprising: forming a slide-in piece with a groove extending in a first direction, through which the locking member passes, in the equipment fixing member; inserting the slide-in piece between the structure and the fastener while sliding the locking member in the first direction in the groove, thereby fixing the equipment fixing member to the structure; forming a pocket portion at the back of the groove that is bent in a second direction intersecting the first direction; inserting the slide-in piece until the locking member reaches the back of the groove, and then sliding the slide-in piece in the direction opposite to the second direction, thereby inserting the locking member into the pocket portion.

19. A method for installing an equipment fixing member as described in claim 16, 17 or 18, characterized in that a box portion on which the equipment is placed and fastened is connected to the slide-in piece of the equipment fixing member, thereby increasing the rigidity of the slide-in piece and increasing the slip-out resistance of the slide-in piece.

20. An equipment fixing member for mounting and fixing equipment to a structure fixed to a support structure with a locking member, comprising: a box portion on which the equipment is placed and fastened; and a slide-in piece connected to the box portion, with a groove for receiving the locking member, which is inserted between the locking member and its fastener.

21. An equipment fixing member according to claim 18, characterized in that a pocket portion is formed at the back of the groove, which fits in a direction intersecting the insertion direction of the slide-in piece.

22. An equipment fixing member according to claim 19 or 20, characterized in that the upper part of the slide-in piece is open.

23. An equipment fixing member according to claim 19 or 20, characterized in that, when installed, the center of the box section is located on the ridge of the corrugated slate sheet.

24. An equipment fixing member as described in claim 19, characterized in that a vertical piece is formed on the side of the slide-in piece opposite to the insertion direction, which crosses the insertion direction, and which stands up from the side, and the vertical piece is connected to the back wall of the box portion.

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