JP6472586B1 - Solar cell device - Google Patents

Abstract

  The solar cell device includes a solar cell module, a fixing tool, and a coating layer containing a resin. The fixing tool is located on the installation target part. The installation target part has a base part, a base body, and a fastening part. The base body protrudes in a first direction from the first surface on the base portion side toward the second surface opposite to the first surface, and is positioned along a second direction orthogonal to the first direction. Contain a convex part. The fastening portion has a projecting portion in a state of penetrating the base body and projecting from the second surface in the first direction. The fixing tool has a base portion including a portion along the convex portion of the base and a standing portion. The standing portion has a connection portion with the base portion and a support portion that supports the solar cell module. The coating layer covers the second surface of the base, the base portion, the portion of the protruding portion on the second surface side, and the connecting portion of the standing portion, and is in a state of being adhered to the second surface. The support portion is in a state protruding from the coating layer in the first direction.

Description

  The present disclosure relates to a solar cell device.

  In recent years, solar power generation with a low environmental load has attracted attention as environmental protection has increased. In order to expand the spread of solar power generation, a solar cell device in which a solar cell module is installed on a roof has attracted attention. Such a solar cell device is required to have a structure suitable for features such as a material and a shape of a roof material that is an installation target part (also referred to as an installation target part).

  For example, a technique for supporting a solar cell module via a fixture disposed on a corrugated roof material has been proposed (see, for example, the description of JP2013-256802A).

  A solar cell device is disclosed.

  One aspect of the solar cell device includes one or more solar cell modules, a fixing tool, and a coating layer. The said fixing tool is located on the installation object part. The said coating layer is located in the state which has covered the said installation object part, and contains resin. The installation target part includes a base part, a base located on the base part, and a fastening part located in a state where the base is fixed to the base part. The base includes a first surface supported by the base portion, and a second surface positioned in a state facing the opposite side of the first surface, and the first surface to the first surface One or more convex parts which protrude in the 1st direction which goes to the 2nd surface, and are located in the state extended along the 2nd direction orthogonal to the 1st direction are included. The fastening portion is positioned in a state of penetrating the base body and has a protruding portion positioned in a state of protruding from the second surface in the first direction. The fixing tool has a base portion and one or more standing portions. The base includes a portion located along the convex portion in a direction intersecting the second direction. The standing portion is positioned in a state of supporting the connecting portion positioned in a state of being connected to the base and the one or more solar cell modules directly or indirectly through another member. And a supporting portion. The covering layer covers the second surface of the base body, the base, the portion on the second surface side of the protruding portion, and at least the connection portion of the standing portion. And located in a state of being bonded to the second surface. The support portion of the standing portion is located in a state protruding from the coating layer in the first direction.

FIG. 1 is a perspective view illustrating an example of a state in which the solar cell device according to the first embodiment is located on a roof. FIG. 2 is a perspective view showing an example of a roof structure. Fig.3 (a) is sectional drawing which shows an example of the cut surface of the roof along the IIIa-IIIa line | wire of FIG. FIG.3 (b) is an end elevation which shows a part of example of the cut surface of the roof along the IIIb-IIIb line | wire of Fig.3 (a). FIG. 4 is a plan view showing the appearance of the third surface side of an example of the solar cell module. FIG. 5 is an end view showing an example of a cut surface of the solar cell module taken along the line V-V in FIG. 4. FIG. 6 is a perspective view showing an example of a state in which a plurality of fixing tools are located on the roof. FIG. 7 is a perspective view showing an example of a state in which the fixing tool is attached on the roof in the portion VII in FIG. Fig.8 (a) is sectional drawing which shows an example of the cross section of the roof, fixing tool, and coating layer which followed the VIIIa-VIIIa line | wire of FIG. FIG. 8B is a cross-sectional view showing an example of the structure of the coating layer. FIG. 9 is a cross-sectional view showing an example of a state in which the covering layer is formed on the roof and the fixing tool with respect to the cross section of the roof, the fixing tool, and the covering layer along the line VIIIa-VIIIa in FIG. FIG. 10 is a perspective view showing an example of a state in which a beam member and a girder member are attached on a fixing tool located on a roof. FIG. 11 is an enlarged perspective view showing the external appearance of the solar cell device and the roof in the XI part of FIG. FIG. 12 is a cross-sectional view showing an example of a cross section of the solar cell device along line XII-XII in FIG. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 15 corresponding to a cross section taken along line XII-XII in FIG. FIG. FIG. 14 is a perspective view showing an example of a state in which the fixing tool of the solar cell device according to the second embodiment is attached on the roof. FIG. 15 is an enlarged perspective view showing, in an enlarged manner, the appearance of a portion corresponding to the XI portion of FIG. 1 in the solar cell device and the roof according to the second embodiment. 16 is a cross-sectional view showing a cross section corresponding to a cross section taken along line XII-XII in FIG. 11 among an example of a state in which a solar cell device according to a modification of the second embodiment is located on a roof. It is. FIG. 17: is sectional drawing which shows the cross section corresponding to the cross section along the XII-XII line | wire of FIG. 11 among an example of a mode that the solar cell apparatus which concerns on 3rd Embodiment is located on a roof. FIG. 18 is a cross-sectional view showing a cross section corresponding to a cross section taken along line XII-XII in FIG. 11 among an example of a state in which the solar cell device according to the fourth embodiment is located on the roof. FIG. 19 is a cross-sectional view showing a cross section corresponding to a cross section taken along line XII-XII in FIG. It is. FIG. 20 is a cross-sectional view showing an example of the cross section of the roof, the fixing tool, and the covering layer corresponding to the cross section taken along the line VIIIa-VIIIa of FIG. 6 in the example of the solar cell device according to the fifth embodiment. FIG. 21 is a cross-sectional view showing an example of a cross section of a roof, a fixing tool, and a covering layer corresponding to a cross section taken along the line VIIIa-VIIIa of FIG. 6 among examples of the solar cell device according to the sixth embodiment. 22 is a cross-sectional view showing an example of a cross section of a roof, a fixing tool, and a covering layer corresponding to a cross section taken along line VIIIa-VIIIa in FIG. 6 among examples of the solar cell device according to the seventh embodiment. FIG. 23A and FIG. 23B are plan views showing examples of a stopper according to the eighth embodiment. FIG. 24 is a cross-sectional view showing a cross section corresponding to a cross section taken along line VIIIa-VIIIa in FIG. 6, among examples of a state in which the solar cell device according to the ninth embodiment is located on the roof. FIG. 25 is a perspective view showing an appearance of the first fixing member before being hooked on the protrusion on the roof. FIG. 26 is a perspective view showing the appearance of the first fixing member that is hooked on the protrusion on the roof. FIG. 27 is a perspective view showing an appearance of the second fixing member before being arranged on the first fixing member. FIG. 28 is a perspective view illustrating a state in which the second fixing member disposed on the first fixing member is fixed to the first fixing member. FIG. 29 is a perspective view showing a state in which the beam member is fixed so as to be installed on two fixing tools. FIG. 30 is a cross-sectional view showing a cross section corresponding to a cross section taken along line VIIIa-VIIIa in FIG. 6 among an example of a state in which a solar cell device according to a modification of the ninth embodiment is located on the roof. It is. FIG. 31 shows a cross section corresponding to the cross section taken along the line VIIIa-VIIIa in FIG. 6 among examples of the state in which the solar cell device according to another modification of the ninth embodiment is located on the roof. It is sectional drawing. Fig.32 (a) is sectional drawing which shows an example of a mode that the solar cell apparatus which concerns on 10th Embodiment is located on a roof. FIG. 32A shows a cross section of the solar cell device and the roof along the line XXXIIa-XXXIIa in FIG. FIG. 32B is a cross-sectional view showing an example of a cross section of the solar cell device and the roof along the line XXXIIb-XXXIIb in FIG. FIG. 33A to FIG. 33E are cross-sectional views illustrating a state in the middle of installing the solar cell device according to the tenth embodiment on the roof. FIG. 34A is a cross-sectional view showing an example of a state in which a solar cell device according to a modification of the tenth embodiment is located on the roof. FIG. 34B is a cross-sectional view showing an example of a state in which a solar cell device according to another modification of the tenth embodiment is located on the roof. FIG. 34C is a cross-sectional view illustrating an example of a state in which the solar cell device according to another modification of the tenth embodiment is located on the roof. Each of FIGS. 34 (a) to 34 (c) shows a cross section corresponding to the cross section of the solar cell device and the roof along the line XXXIIa-XXXIIa in FIG. 32 (b).

  There is a solar cell device in which a solar cell module is positioned on a roof. Such a solar cell device is required to have a structure suitable for characteristics such as the material and shape of the roofing material. As the roof material, for example, a plate-shaped roof material such as a slate or metal corrugated sheet is applied.

  For example, a configuration in which a metal fitting for installing the solar cell module is fixed on a roof material as a base and the solar cell module is held on the roof material using the metal fitting is conceivable. Here, for example, a fixture such as a nail or a screw is driven into the roofing material and a base plate or rafter supporting the roofing material, so that the fixture is fixed on the roofing material by the fixing tool. It is possible.

  However, various stresses such as a load due to snow or an external force due to wind pressure can be applied to the solar cell module installed on the roof. For this reason, for example, various stresses can be applied to the metal fitting fixed on the roof material in order to hold the solar cell module. Here, for example, if the roofing material is made of a hard material such as a slate, if excessive stress is applied to the metal fitting, the roofing material may be damaged or misaligned. Further, for example, if the roof is composed of a plurality of metal roof materials, the roof material may be deformed or displaced when stress is applied to the metal fittings. And damage, a deformation | transformation, and shift | offset | difference of such a roof material can cause the fall of the waterproofness in a roof.

  Moreover, as a part (it is also called an installation object part) used as the object which installs a solar cell apparatus, outer walls, such as a factory and a warehouse, can be considered besides a roof, for example. As for the outer wall, similarly to the above-described roof, for example, a metal fitting for installing the solar cell module can be fixed to a plate-like outer wall portion.

  Moreover, as an installation object part, the flat flat roof made from concrete etc. which are employ | adopted widely, such as an apartment or a building, can be considered, for example. For example, lightweight cellular concrete (ALC) is applied to the material of the flat roof. Also in this case, for example, a form in which the solar cell module is held using a metal fitting fixed on a flat roof with a fixing tool such as a screw is conceivable. However, various stresses applied to the solar cell module are caused by the metal roof through the metal fitting. In addition, the flat roof may be damaged. And the damage of such a land roof can cause the fall of the waterproof property in a land roof. For this reason, said problem is common in the form in which a solar cell apparatus is installed with respect to an installation object part.

  Therefore, the solar cell device in which the solar cell module is located on the installation target part has room for improvement in terms of improving the waterproof property of the installation target part.

  Then, this inventor created the technique which can improve the waterproofness of an installation object part about the solar cell apparatus in which the solar cell module is located on the installation object part.

  Hereinafter, various embodiments will be described with reference to the drawings. In the drawings, parts having similar configurations and functions are denoted by the same reference numerals, and redundant description is omitted in the following description. The drawings are shown schematically. 1 to 34 (c), a right-handed XYZ coordinate system is attached. In the XYZ coordinate system of FIGS. 1 to 31, the direction from the eaves of the roof 1 to the ridge is the + Y direction, the direction orthogonal to the + Y direction and extending along the eaves is the + X direction, and the + X direction and the + Y direction are The direction orthogonal to both of these is the + Z direction. In the XYZ coordinate system of FIGS. 32 (a) to 34 (c), the normal direction of the upward second surface 1Fs of the roof 1 is the + Z direction, and one direction along the second surface 1Fs is the + X direction. The direction along the second surface 1Fs orthogonal to both the + X direction and the + Z direction is the + Y direction. In each embodiment, the + Z direction is the upward direction, and the −Z direction is the downward direction.

<1. First Embodiment>
As FIG. 1 shows, the solar cell apparatus 2 which concerns on 1st Embodiment is located in the state attached on the inclined roof 1 as an installation object part, for example. Below, the structure of the roof 1 is first demonstrated based on FIGS. 1-3 (b). Then, the solar cell apparatus 2 which concerns on 1st Embodiment is demonstrated based on FIG. 1 and FIGS. 4-12.

<1-1. Roof>
As shown in FIGS. 1 and 2, the roof 1 includes a base portion 1Bm, a roofing material 1Rf, and a first fastening portion 1Mt.

  The base portion 1Bm is a portion for supporting the roofing material 1Rf. For the base portion 1Bm, a girder as a structural material is applied. For example, a long C-shaped steel having a C-shaped cross section is applied to the girders. In the example of FIGS. 1 and 2, a plurality of girders as the plurality of base portions 1Bm are positioned in parallel to each other.

  The roofing material 1Rf is a base body located on the base portion 1Bm. As the shape of the roofing material 1Rf, a plate-shaped material is adopted. The roofing material 1Rf may be composed of a single plate-shaped member, or may be composed of two or more plate-shaped members. In the case where the roof material 1Rf is composed of two or more plate-like members, for example, a form in which adjacent plate-like members are partially overlapped is employed. The roofing material 1Rf is a surface (also referred to as a first surface) 1Bs that faces downward, and a second surface that faces the upward direction opposite to the first surface 1Bs. Surface 1Fs. The roofing material 1Rf includes a convex portion (also referred to as a convex portion) 1Pr that protrudes in a direction (also referred to as a first direction) from the first surface 1Bs toward the second surface 1Fs. Here, the + Z direction as the upward direction is set as the first direction. The convex portion 1Pr is located in a state extending along a direction (also referred to as a second direction) orthogonal to the first direction. Here, as the second direction, a −Y direction is set as a direction in which the roof 1 is inclined (also referred to as an inclination direction). The inclination direction is the direction from the building to the eaves. Here, for example, the roofing material 1Rf is positioned in a state of being inclined with respect to the horizontal plane so that the eaves-side portion of the roofing material 1Rf is present at a position lower than the ridge-side portion.

  For the roofing material 1Rf having such a configuration, for example, a corrugated plate fixed on the base portion 1Bm is applied. The corrugated plate is made of, for example, slate or iron. For example, a thin plate such as a stainless steel plate or a plated steel plate is applied to the iron corrugated plate. For example, the corrugated plate has a structure in which the convex portions 1Pr and the concave portions 1Rs are alternately arranged in a direction (also referred to as a third direction) orthogonal to both the upward direction and the inclined direction and extending along the eaves. Have. Here, the + X direction is set as the third direction.

  In the example of FIGS. 1 and 2, the plurality of base portions 1Bm are arranged at intervals in the second direction (−Y direction). Each base portion 1Bm has, for example, a longitudinal direction along the third direction (+ X direction). And the roofing material 1Rf is located on the multiple foundation | substrate part 1Bm. In other words, the first surface 1Bs of the roofing material 1Rf is supported by the girder as the base portion 1Bm.

  The first fastening portion 1Mt is located in a state where the roofing material 1Rf is fixed to the base portion 1Bm. For example, the first fastening portion 1Mt is in a state in which the roofing material 1Rf and the base portion 1Bm are fixed by fastening. For example, a configuration in which a bolt and a nut are combined or a wood screw is employed for the first fastening portion 1Mt. For example, a hexagonal bolt or a hook bolt is applied to the bolt. In the example of FIGS. 1 and 2, a plurality (25 in this case) of first fastening portions 1Mt are positioned in a state where the roofing material 1Rf is fixed to the base portion 1Bm. Specifically, a row of five fastening portions each having five first fastening portions 1Mt aligned along the second direction (−Y direction) is aligned in the third direction (+ X direction). Here, for example, as shown in FIG. 3A and FIG. 3B, the first fastening portion 1Mt is positioned in a state of penetrating the roof material 1Rf as a base. The first fastening portion 1Mt has, for example, a portion (also referred to as a protruding portion) Pj1 that is located in a state protruding from the second surface 1Fs of the roofing material 1Rf in the first direction (+ Z direction).

  Here, for example, it is assumed that the first fastening portion 1Mt has a first member and a second member that are positioned in a state of being combined with each other. In this case, as the first fastening portion 1Mt, for example, one having a structure in which a bolt B11 as a first member and a first nut Nt1 as a second member are combined is employed. Here, the bolt Bl1 as the first member is, for example, a portion on the first end portion Ed1 side having a portion (also referred to as a locking portion) Fk1 positioned in a state of being locked to the base portion 1Bm, And a portion on the second end portion Ed2 side having the male screw portion Ml1 in the protruding portion Pj1. The protrusion Pj1 has convex portions and concave portions along the circumferential direction, which are alternately arranged in the axial direction along the first direction (+ Z direction) in the male screw portion Ml1. The 1st nut Nt1 as a 2nd member has the internal thread part located in the state combined with the external thread part Ml1, for example. And the 1st nut Nt1 as a 2nd member is located in the state which is pressing the roofing material 1Rf as a base | substrate with respect to the beam material as the base | substrate part 1Bm.

  Here, for example, if the base portion 1Bm is a girder, the solar cell device 2 can be fixed to the first fastening portion 1Mt locked to the girder, as will be described later. In this case, due to the excellent rigidity and strength of the girders, even if a load (also referred to as a negative pressure load) is applied to the solar cell device 2 in a direction away from the roof material 1Rf due to wind pressure or the like, the fixing tool 2Fx from the roof material 1Rf. Is difficult to lift. For this reason, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be improved, and the strength of fixing the solar cell device 2 to the roofing material 1Rf can be improved.

  In the example of FIG. 3A and FIG. 3B, C-shaped steel is adopted as the base portion 1Bm, and hook bolts are adopted as the bolts Bl1. Here, the hook bolt locking portion Fk1 is positioned so as to be hooked to the C-shaped steel. The first nut Nt1 is combined with the male thread Ml1 of the protrusion Pj1. The hook bolt has a shaft portion Sh1 positioned so as to connect the locking portion Fk1 and the protruding portion Pj1. The shaft portion Sh1 is positioned in a state where the shaft portion Sh1 is inserted through a hole 1Ha penetrating the roof material 1Rf. In the first embodiment, the hole 1Ha is located in the convex portion 1Pr of the roofing material 1Rf. More specifically, the hole 1Ha is located at the apex Pk1 of the convex portion 1Pr. In such a configuration, the first nut Nt1 is tightened in a state where it is combined with the male screw portion Ml1, so that the first nut Nt1 moves down the second surface 1Fs of the roofing material 1Rf (−Z direction). It is in a state where it is pressed. Thereby, it will be in the state by which roofing material 1Rf is pinched | interposed by base | substrate part 1Bm and 1st nut Nt1. Here, as shown in FIG. 3A, a washer Ws1 may be present between the roofing material 1Rf and the first nut Nt1 in a state where the protruding portion Pj1 is inserted. . In this case, further packing may exist between the roofing material 1Rf and the washer Ws1. As a packing, the cyclic | annular thing located in the state by which the protrusion part Pj1 is penetrated may be employ | adopted, for example. As the material for the packing, for example, ethylene / propylene / diene rubber (EPDM) foam or non-woven fabric impregnated with asphalt is applied. Here, for example, if a nut having a flange having the function of the washer Ws1 (also referred to as a nut with a flange) is applied to the first nut Nt1, the washer Ws1 may not be present.

  Here, for example, as the bolt B11 as the first member, the hook bolt locking portion Fk1 may be changed to a male screw portion or the like positioned in a state of being fixed to the base portion 1Bm. In this case, as the bolt B11 as the first member, for example, a dimension bolt or the like may be employed instead of the hook bolt. At this time, for example, the male screw portion on the first end portion Ed1 side of the bolt Bl1 is directly fixed to the base portion 1Bm using a nut or the like while being inserted into a through hole or the like provided in the base portion 1Bm. The state may be sufficient, and the state indirectly fixed to the base | substrate part 1Bm via another member may be sufficient.

<1-2. Solar cell device>
As shown in FIG. 1, the solar cell device 2 includes, for example, a plurality of solar cell modules 2Mo, a holding unit 2Hd, and a coating layer 2Cv. In FIG. 1 and FIG. 11, the description of the covering layer 2Cv is omitted for the sake of convenience in order to show the structure of the roof 1 and the holding portion 2Hd, and in FIG. 8 (a), FIG. 9 and FIG. The outer edge of the outermost surface of the coating layer 2Cv is drawn with a two-dot chain line. In the example of FIG. 1, the plurality of solar cell modules 2Mo are positioned in a state aligned along the second direction (−Y direction). In other words, the plurality of solar cell modules 2Mo are aligned in a plane.

<1-2-1. Solar cell module>
As shown in FIGS. 4 and 5, each solar cell module 2Mo has, for example, a solar cell panel Pn1 and a frame F1 that reinforces the outer edge of the solar cell panel Pn1.

  The solar cell panel Pn1 has a third surface Sf1 as a light receiving surface for mainly receiving light, and a fourth surface Sf2 as a back surface located on the opposite side of the third surface Sf1.

  The solar cell panel Pn1, for example, in order from the third surface Sf1 side, the translucent substrate Tr1, the first sealing material Se1, the photoelectric conversion unit Pc1, the second sealing material Se2, and the back surface protection member Ba1, Terminal box Bx1.

  The translucent substrate Tr1 is located, for example, on the third surface Sf1 side of the photoelectric conversion unit Pc1. Here, the surface on the + Z direction side of the translucent substrate Tr1 forms the third surface Sf1. For example, the translucent substrate Tr1 has a role of protecting the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. For example, the translucent substrate Tr1 has translucency with respect to light in a specific range of wavelengths. As the wavelength in the specific range, for example, a wavelength of light with high intensity included in the light irradiated on the solar cell panel Pn1 and a wavelength of light that can be photoelectrically converted by the photoelectric conversion unit Pc1 is employed. If, for example, glass or a resin such as acrylic or polycarbonate is employed as the material of the translucent substrate Tr1, the translucent substrate Tr1 having translucency can be realized. For the glass, for example, a material having a high light transmittance such as white plate glass, tempered glass, or heat ray reflective glass having a thickness of about 2 mm to 5 mm is employed. As the shape of the translucent substrate Tr1, for example, a plate shape such as a flat plate shape is adopted.

  For example, the first sealing material Se1 is located between the translucent substrate Tr1 and the photoelectric conversion unit Pc1. For example, the second sealing material Se2 is located between the photoelectric conversion unit Pc1 and the back surface protection member Ba1. In other words, in a state where the first sealing material Se1 and the second sealing material Se2 are filled between the translucent substrate Tr1 and the back surface protection member Ba1 so as to cover the photoelectric conversion unit Pc1, for example. positioned. For example, the first sealing material Se1 and the second sealing material Se2 have a role of holding the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. The first sealing material Se1 and the second sealing material Se2 have translucency similarly to the translucent substrate Tr1. As the material of the first sealing material Se1 and the second sealing material Se2, for example, a thermosetting resin or the like is employed. Examples of the thermosetting resin include those containing ethylene vinyl acetate copolymer (EVA) or polyvinyl butyral (PVB) as a main component. The thermosetting resin may contain a crosslinking agent. Here, the main component means a component having the largest (high) content ratio (also referred to as content).

  The photoelectric conversion unit Pc1 includes, for example, a plurality of solar cell elements C1, a plurality of first wiring members W1, and a plurality of second wiring members W2. In the example of FIG. 4, in the photoelectric conversion unit Pc1, for example, the plurality of solar cell elements C1 are positioned in a state of being two-dimensionally aligned. Specifically, the photoelectric conversion unit Pc1 includes, for example, a plurality (here, six) solar cell strings S1. Each solar cell string S1 includes, for example, a plurality (here, 10) of solar cell elements C1 and a plurality of first wiring members W1. For example, the plurality of first wiring members W1 electrically connect the solar cell elements C1 adjacent to each other among the plurality of solar cell elements C1. The plurality of second wiring members W2 electrically connect the solar cell strings S1 adjacent to each other among the plurality of solar cell strings S1.

  The back surface protection member Ba1 is located on the fourth surface Sf2 side of the photoelectric conversion unit Pc1, for example. Here, the surface on the −Z direction side of the back surface protection member Ba1 forms the fourth surface Sf2. For example, the back surface protection member Ba1 has a role of protecting the photoelectric conversion unit Pc1 and a role of sealing the photoelectric conversion unit Pc1. For example, the back surface protection member Ba1 may have a light transmitting property or may not have a light transmitting property. As the back surface protection member Ba1, for example, a flexible sheet-like member (also referred to as a sheet member) or a plate-like member is employed. For example, resin is applied to the material of the sheet member. The material, shape, and thickness of the plate-like member may be the same as the material, shape, and thickness of the translucent substrate Tr1, for example.

  The terminal box Bx1 can take out the output obtained by the photoelectric conversion unit Pc1 to the outside. The terminal box Bx1 is located on the fourth surface Sf2, for example. The terminal box Bx1 can be fixed to the fourth surface Sf2 using, for example, a resin such as silicon sealant. The terminal box Bx1 includes, for example, a box, a terminal plate, and a cable. For example, a modified polyphenylene ether resin (modified PPE resin) or a polyphenylene oxide resin (PPO resin) is applied to the box material. The terminal board is located in the box and is connected to the second wiring member W2 of the photoelectric conversion unit Pc1. The cable can lead electric power to the outside of the box.

  The frame F1 has a function of holding the solar cell panel Pn1. For example, the frame F1 has a structure in which the solar battery panel Pn1 can be fitted. The frame F1 has a frame upper surface located on the side receiving sunlight, a frame lower surface located on the back side of the frame upper surface, and a frame side surface connecting the frame upper surface and the frame lower surface. The frame F1 can be manufactured by, for example, extrusion molding of aluminum.

<1-2-2. Holding part>
The holding part 2Hd is located on the roof 1 as an installation target part. This holding | maintenance part 2Hd is located in the state holding multiple (here three) solar cell modules 2Mo.

  As shown in FIGS. 1 and 10, the holding portion 2Hd includes a plurality of fixing tools 2Fx, a plurality of beam members 2Hm, and a plurality of beam members 2Vm.

<1-2-2-1. Fixing tool>
As shown in FIG. 1 and FIG. 6, each fixing tool 2Fx is located on the roof 1 as an installation object. In the example of FIG. 6, 20 fixing tools 2Fx are located on the roof 1. Specifically, a row of four fixing tools 2Fx each having five fixing tools 2Fx aligned along the second direction (−Y direction) is aligned in the third direction (+ X direction). For example, stainless steel or aluminum having excellent weather resistance is adopted as the material of each fixing tool 2Fx.

  As shown in FIGS. 7 and 8A, when focusing on one fixing tool 2Fx, the fixing tool 2Fx has, for example, a base Bp2 and two standing portions St2. The two standing portions St2 include a first standing portion St2a and a second standing portion St2b. For example, the first standing portion St2a is located on the −X direction side with respect to the top portion Pk1 where the hole portion 1Ha is located. Further, for example, the second standing portion St2b is located on the + X direction side from the top portion Pk1 where the hole portion 1Ha is located. In the first embodiment, each fixing tool 2Fx has, for example, a second nut Nt2 as a stopper.

  The base Bp2 is, for example, a plate-like portion (first portion) that is positioned along the convex portion 1Pr of the roofing material 1Rf as a base in a direction (also referred to as a crossing direction) intersecting the second direction (−Y direction). (Also referred to as a plate-like portion). In the example of FIGS. 7 and 8A, the intersecting direction is a direction orthogonal to the second direction (−Y direction). In 1st Embodiment, the whole base Bp2 comprises the plate-shaped bottom part of the fixing tool 2Fx. For this reason, the base Bp2 is located along the convex portion 1Pr in the intersecting direction. Specifically, for example, the second surface 1Fs of the convex portion 1Pr is a surface that is curved in the crossing direction, and the base Bp2 has a shape along the second surface 1Fs of the curved convex portion 1Pr. A form that is a curved first plate-like part Pl2 having the following structure is conceivable. In this case, for example, the gap between the base Bp2 and the roofing material 1Rf is reduced. Thereby, the coating layer 2Cv described later can be easily formed on the roofing material 1Rf without a gap. As a result, for example, the waterproofness of the roof 1 can be easily improved.

  In the first embodiment, the base Bp2 has a hole H2a that is located in a state of penetrating the base Bp2 in the + Z direction. For example, the protruding portion Pj1 of the first fastening portion 1Mt is inserted in the hole H2a. Here, for example, a washer Ws1 positioned in a state where the protruding portion Pj1 is inserted may be located in the hole H2a. Further, there is a pressing member Ps2 having a hole H2o located on the base portion Bp2 and located in a state where the protruding portion Pj1 is inserted. And the 2nd nut Nt2 as a stopper is located on the pressing member Ps2, and is located in the 2nd end part Ed2 side rather than the 1st nut Nt1 of the external thread parts Ml1 of the protrusion part Pj1. It is located in a state where it is engaged with the part. And the 2nd nut Nt2 and the roofing material 1Rf are located in the state which has clamped base Bp2.

  Specifically, the male screw portion of the projecting portion Pj1 is located by engaging the female screw portion of the second nut Nt2 with the convex portion and the concave portion of the male screw portion Ml1 of the projecting portion Pj1. The second nut Nt2 is combined with Ml1. In such a configuration, the second nut Nt2 is tightened in a state where it is combined with the male screw portion Ml1, so that the second nut Nt2 is attached to the base Bp2 via the pressing member Ps2 on the second surface of the roofing material 1Rf. It is in a state of being pressed downward (-Z direction) against 1Fs. Thereby, the second nut Nt2 and the roofing material 1Rf are in a state of sandwiching the base Bp2.

  Each standing portion St2 is a portion that is positioned in a state of standing upward (+ Z direction) from the base Bp2. The standing portion St2 includes a connection portion Cn2, a support portion Sp2, and a connection portion Jt2. In the example of FIGS. 7 and 8A, each standing portion St2 is a plate-like portion having an L-shaped XZ cross section.

  The connection portion Cn2 is a portion that is located in a state of being connected to the base portion Bp2 in each of the standing portions St2. In other words, the connection part Cn2 is a part where the base part Bp2 and the standing part St2 are connected. For example, when the fixing tool 2Fx is integrally formed by casting or the like, there is no seam in the connection portion Cn2. For example, when the fixing tool 2Fx is formed by joining two or more plate materials molded by press working or the like, the connection portion Cn2 has a joint connected by welding or the like. . In the first embodiment, the first connection portion Cn2a and the second connection portion Cn2b exist in one fixing tool 2Fx. For example, the first connection portion Cn2a is located on the −X direction side of the hole 2Ha in the base portion Bp2. For example, the second connection portion Cn2b is located on the + X direction side of the hole 2Ha in the base Bp2.

  The support portion Sp2 is a portion located in a state of supporting the solar cell module 2Mo among the standing portions St2. The support portion Sp2 may be positioned in a state in which the solar cell module 2Mo is directly supported, or may be positioned in a state in which the support portion Sp2 is indirectly supported through another member. In 1st Embodiment, the support part Sp2 is located in the state which is supporting the solar cell module 2Mo indirectly through the beam member 2Hm and the girder member 2Vm as other members. In the example of FIGS. 7 and 8A, each support portion Sp2 is a plate-like portion along the XY plane. Each support portion Sp2 has a hole H2c through which a fastening member for fixing the beam member 2Hm is inserted along the first direction (+ Z direction).

  The connecting portion Jt2 is a portion located in a state extending along the first direction (+ Z direction) so as to connect the connecting portion Cn2 and the support portion Sp2. The connecting portion Jt2 may be any of a plate-like portion, one or more rod-like portions, and a comb-like portion, for example. In the example of FIGS. 7 and 8A, the connecting portion Jt2 is a plate-like portion along the YZ plane.

<1-2-2-2. Beam member>
As shown in FIGS. 1 and 10, the beam member 2Hm is positioned in a state where the beam member 2Hm is installed on the plurality of fixing tools 2Fx. As shown in FIG. 12, for example, the beam member 2Hm is positioned on the support portion Sp2 of the standing portion St2 of the fixing tool 2Fx, and the second fastening portion 2Mt with respect to the support portion Sp2. It is fixed by. In the first embodiment, the beam member 2Hm is positioned in a state of being erected on the two fixing tools 2Fx positioned adjacent to each other in the third direction (+ X direction). For this reason, each beam member 2Hm has a longitudinal direction along the third direction (+ X direction). In the second direction (−Y direction), a plurality of (here, five) beam members 2Hm are positioned in a state of being spaced apart. In the example of FIGS. 1 and 10, there are two rows of beam members 2Hm each composed of five beam members 2Hm spaced apart in the second direction (−Y direction). . For the beam member 2Hm, for example, a rectangular tube-shaped member whose cross-sectional shape perpendicular to the longitudinal direction is an annular quadrangle is applied. The rectangular tube-shaped beam member 2Hm can be formed by, for example, roll molding or press molding using a stainless steel or plated steel plate. And, for example, by the second fastening portion 2Mt that is inserted through the hole portion of the flange portion 2Hmf existing in the rectangular tube-shaped member and the hole portion H2c of the support portion Sp2 of the standing portion St2. The beam member 2Hm is fixed to the support portion Sp2.

<1-2-2-3. Girder material>
As shown in FIG. 1 and FIG. 10, the girder member 2Vm is positioned in a state of being laid on the plurality of beam members 2Hm. For example, the girder member 2Vm is fixed to the beam members 2Hm by fastening members or the like in a state of being positioned on the plurality of beam members 2Hm. In the first embodiment, the girder member 2Vm is positioned in a state of being laid on the five beam members 2Hm that are spaced apart in the second direction (−Y direction). For this reason, each girder member 2Vm has a longitudinal direction along the second direction (−Y direction). In the third direction (+ X direction), the two girder members 2Vm are positioned in a state where they are spaced apart from each other. For the girder member 2Vm, for example, a rectangular tube-shaped member whose cross-sectional shape perpendicular to the longitudinal direction is an annular quadrangle is applied. The square cylindrical girder member 2Vm can be formed by, for example, roll molding or press molding using a plate material such as stainless steel or plated steel plate.

  Further, as shown in FIG. 1, the solar cell module 2Mo is positioned on the two girder members 2Vm. And the solar cell module 2Mo is located in the state hold | maintained on the girder member 2Vm by the member 2Cl for clamping currently fixed with the fastening member containing a volt | bolt, a nut, etc. with respect to the girder member 2Vm. In the example of FIG. 1, the solar cell module 2Mo is positioned on the + Y direction side of the two solar cell modules 2Mo and the two clamping members 2Cl positioned on the −Y direction side of the solar cell module 2Mo. It is in a state of being sandwiched between the two clamping members 2Cl.

<1-2-3. Coating layer>
As shown in FIGS. 1, 6, 8 (a), 11, and 12, the covering layer 2 </ b> Cv is positioned in a state of covering the roof 1 as the installation target portion. As this coating layer 2Cv, for example, a layer containing a resin (also referred to as a resin-containing layer) is employed.

  For example, a layer in which a plurality of layers are stacked may be applied to the covering layer 2Cv. For example, as shown in FIG. 8 (b), the one in which the first layer LY1, the second layer LY2, and the third layer LY3 are stacked in this order on the roofing material 1Rf is adopted. Is done.

  For the first layer LY1, for example, a heat insulating foam layer made of hard urethane foam or polyurethane resin foam is applied. This heat-insulating foam layer is excellent in, for example, waterproofness, heat insulation and soundproofing. The thickness of the heat insulating foam layer is set to about 7 mm to 50 mm. The heat insulating foam layer can be formed by, for example, a spraying method on the roof material 1Rf. According to such a construction method, for example, the first layer LY1 can be adhered to the surface to be formed such as the second surface 1Fs of the roofing material 1Rf and can be covered without a gap.

  For example, a reinforced waterproof layer made of water-based acrylic rubber, polyurethane, polyurea resin, or the like is applied to the second layer LY2. This reinforced waterproof layer has a waterproof function, for example. Thereby, the reinforced waterproof layer can protect the heat insulating foam layer and extend the life of the heat insulating foam layer. The thickness of the reinforced waterproof layer is set to about 0.3 mm to 10 mm, for example. The reinforced waterproof layer can be formed by, for example, a spraying method on the heat insulating foam layer. According to such a construction method, for example, the second layer LY2 can be adhered to a surface to be formed such as the upper surface of the first layer LY1 and covered without a gap.

  For the third layer LY3, for example, a surface layer made of water-based acrylic urethane or the like is applied. For example, the surface layer can protect the reinforced waterproof layer and the heat insulating foam layer from sunlight such as ultraviolet rays. Thereby, alteration of the coating layer 2Cv due to long-term use can be reduced. The thickness of the surface layer is set to, for example, about 0.02 mm to 1 mm. This surface layer can be formed, for example, by a coating method or a spraying method using a liquid roller or brush. According to such a construction method, for example, the third layer LY3 can be adhered to a surface to be formed such as the upper surface of the second layer LY2 and covered without a gap.

  In the first embodiment, as shown in FIG. 8A, FIG. 11 and FIG. 12, the coating layer 2Cv includes the second surface 1Fs, the base portion Bp2, the projecting portion Pj1, and the connecting portion of the standing portion St2. It is located in a state of covering so as to fill Cn2. The covering layer 2Cv is positioned in a state where it is adhered to the second surface 1Fs. Here, the portion including the support portion Sp2 of the standing portion St2 is located in a state of protruding in the first direction (+ Z direction) from the coating layer 2Cv. Due to the presence of the covering layer 2Cv, for example, even if the fixing tool 2Fx for installing the solar cell module 2Mo is attached on the roofing material 1Rf, the waterproofness of the roof 1 can be improved. Here, for example, the gap between the first fastening portion 1Mt and the roofing material 1Rf is covered with the covering layer 2Cv so as to be filled from the second surface 1Fs side. Thereby, for example, the inundation of the downward direction of the roof 1 through between the 1st fastening part 1Mt and the roofing material 1Rf can be reduced. As a result, the waterproofness of the roof 1 can be improved. Further, for example, the base Bp2 is covered with a covering layer 2Cv bonded to the second surface 1Fs. For this reason, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf due to wind pressure or the like, the base Bp2 is unlikely to rise from the roof material 1Rf due to the presence of the covering layer 2Cv. For this reason, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be improved. Further, for example, the covering layer 2Cv covers the base Bp2, and is bonded to the roofing material 1Rf at the outer peripheral portion of the base Bp2. For this reason, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf due to wind pressure or the like, the negative pressure load can be dispersed over a wide surface where the roof material 1Rf and the covering layer 2Cv are bonded. Thereby, the intensity | strength of fixation with respect to the roofing material 1Rf of base Bp2 of the fixing tool 2Fx can improve. Therefore, the strength of fixing the solar cell device 2 to the roofing material 1Rf can be improved. Here, for example, the coating layer 2Cv may be positioned in a state of being bonded to the second surface 1Fs, the substrate Bp2, the protruding portion Pj1, and the standing portion St2. In this case, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be improved, and the strength of fixing the solar cell device 2 to the roofing material 1Rf can be improved.

  For example, if the roofing material 1Rf is covered with the covering layer 2Cv, the durability of the roof 1 can be improved even if the roofing material 1Rf and the first fastening portion 1Mt are deteriorated due to corrosion or the like. For this reason, when installing the solar cell apparatus 2 on the roof 1, the repair which improves the waterproofness in the roof 1 can also be implemented, for example.

  Here, for example, as shown in FIG. 9, the covering layer 2Cv can be formed on the roofing material 1Rf to which the fixing tool 2Fx is fixed by a spraying method using a nozzle 4Nz or the like. In this case, for example, as shown in FIG. 9, first, a portion of the standing portion St2 including the support portion Sp2 to be projected from the coating layer 2Cv is finally covered with a mask 5Mk such as a curing tape. In the covered state, the coating layer 2Cv is formed by a spraying method. Thereafter, a portion of the coating layer 2Cv located on the mask 5Mk is cut off with a knife or the like, and the mask 5Mk is peeled off. Thereby, a state in which a part of the standing portion St2 including the support portion Sp2 protrudes from the coating layer 2Cv in the first direction (+ Z direction) can be realized.

  In this way, if a portion including the support portion Sp2 of the standing portion St2 protrudes from the coating layer 2Cv in the first direction (+ Z direction), for example, the beam member 2Hm is applied to the support portion Sp2. Can be attached. Thereby, the solar cell module 2Mo can be attached to the fixing tool 2Fx via the beam member 2Hm and the beam member 2Vm.

  As described above, in the first embodiment, for example, as described above, the first fastening portion 1Mt that fixes the roofing material 1Rf to the base portion 1Bm is fixed to the portion protruding from the roofing material 1Rf. The tool 2Fx is fixed by a second nut Nt2 as a stopper. Here, for example, if the protruding portion Pj1 and the second nut Nt2 of the first fastening portion 1Mt are covered so as to be buried in the coating layer 2Cv, the moisture in the portion along the first fastening portion 1Mt on the roof 1 Infiltration is less likely to occur.

  Further, as described above, in the first embodiment, for example, as shown in FIG. 12, the first fastening portion 1Mt passes through the top portion Pk1 of the convex portion 1Pr of the roofing material 1Rf. Is located at. Further, for example, the protruding portion Pj1 is positioned in a state protruding from the top portion Pk1 in the first direction (+ Z direction). For example, a virtual plane (also referred to as a virtual plane) Vp1 along both the first direction (+ Z direction) and the second direction (−Y direction) passing through the top portion Pk1 and the protruding portion Pj1 is used as a reference. The first standing part St2a and the second standing part St2b are positioned symmetrically. In this case, for example, the negative pressure load applied to the solar cell module 2Mo is transmitted to the second nut Nt2 via the two standing portions St2. At this time, if the two standing portions St2 are positioned symmetrically across the convex portion 1Pr through which the first fastening portion 1Mt passes, the load can be transmitted to the first fastening portion 1Mt in a well-balanced manner. . Thereby, the fixing tool 2Fx is not easily damaged and lifted. As a result, damage to the covering layer 2Cv and peeling of the covering layer 2Cv from the roofing material 1Rf are unlikely to occur.

<1-3. Summary of First Embodiment>
In the solar cell device 2 according to the first embodiment, for example, the coating layer 2Cv containing the resin includes the second surface 1Fs of the roofing material 1Rf, the base Bp2, and the portion of the protrusion Pj1 on the second surface 1Fs side. And the connecting portion Cn2 of the standing portion St2 are positioned so as to be covered. Further, the covering layer 2Cv is positioned in a state where it is adhered to the second surface 1Fs. And the part including support part Sp2 of standing arrangement part St2 is located in the state projected in the 1st direction (+ Z direction) from coating layer 2Cv.

  Due to the presence of the covering layer 2Cv, for example, even if the fixing tool 2Fx for installing the solar cell module 2Mo is attached on the roofing material 1Rf as the base, the waterproofness of the roof 1 can be improved. Here, for example, the covering layer 2Cv is covered so as to be buried from the second surface 1Fs side into the gap between the first fastening portion 1Mt and the roofing material 1Rf. Thereby, for example, the inundation of the downward direction of the roof 1 through between the 1st fastening part 1Mt and the roofing material 1Rf can be reduced. As a result, the waterproofness of the roof 1 can be improved. Further, for example, the base Bp2 is covered with a covering layer 2Cv bonded to the second surface 1Fs. Thereby, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf due to wind pressure or the like, the base Bp2 is hardly lifted from the roof material 1Rf due to the presence of the covering layer 2Cv. For this reason, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be improved. Further, for example, the covering layer 2Cv covers the base Bp2, and is bonded to the roofing material 1Rf at the outer peripheral portion of the base Bp2. For this reason, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf due to wind pressure or the like, the negative pressure load can be dispersed over a wide surface where the roof material 1Rf and the covering layer 2Cv are bonded. Thereby, the intensity | strength of fixation with respect to the roofing material 1Rf of base Bp2 of the fixing tool 2Fx can improve. Therefore, the strength of fixing the solar cell device 2 to the roofing material 1Rf can be improved.

  For example, even if the roof material 1Rf and the first fastening portion 1Mt are deteriorated due to corrosion or the like, if the roof material 1Rf is covered with the covering layer 2Cv, the durability of the roof 1 can be improved. For this reason, when installing the solar cell apparatus 2 on the roof 1 as an installation object part, the repair for improving the waterproofness in the roof 1 can also be implemented collectively.

<2. Other embodiments>
The present disclosure is not limited to the first embodiment described above, and various modifications and improvements can be made without departing from the scope of the present disclosure. Here, in FIG. 13, FIG. 16 to FIG. 22, FIG. 24, FIG. 30, and FIG. 31, the outermost edge of the outermost surface of the coating layer 2Cv is drawn with a two-dot chain line for convenience. In FIG. 15, in order to show the structure of the roof 1 and the holding portion 2Hd, the description of the covering layer 2Cv is omitted for convenience.

<2-1. Second Embodiment>
In the first embodiment, for example, as shown in FIGS. 13 to 15, one standing portion St2 out of the first standing portion St2a and the second standing portion St2b may not exist. . In other words, the fixing tool 2Fx only needs to have one or more standing portions St2. In the example of FIGS. 13 to 15, a mode is shown in which the first standing portion St2a of the first standing portion St2a and the second standing portion St2b in the fixing tool 2Fx is removed.

  Here, for example, as shown in FIG. 16, the roof material 1Rf as the base has a portion (also referred to as a supported portion) 1Sp in which the first surface 1Bs is supported by the beam material as the base portion 1Bm. Is assumed. In the example of FIG. 16, the lower part (also referred to as the lowermost part) located on the most −Z direction side of the concave part 1Rs is the supported part 1Sp. In this case, the connection part Cn2 of the fixing tool 2Fx may be located in a state where it is connected to the part located along the second surface 1Fs of the supported part 1Sp in the base part Bp2. If such a configuration is adopted, for example, even if a load (also referred to as a positive pressure load) directed downward (−Z direction) is applied from the solar cell module 2Mo to the standing portion St2 due to snow accumulation or wind pressure, Since the portion to which the positive pressure load is applied in the roofing material 1Rf is supported by the girder, it is difficult to break.

  In the example of FIG. 16, the first fastening portion 1Mt is positioned in a state where the roof material 1Rf is fixed to the base portion 1Bm at each apex portion Pk1 of two adjacent convex portions 1Pr. Each top portion Pk1 of two adjacent convex portions 1Pr of the roofing material 1Rf is located in a state where the first fastening portion 1Mt passes therethrough. Each first fastening portion 1Mt has a protruding portion Pj1 located in a state protruding in the first direction (+ Z direction) from the second surface 1Fs of two adjacent convex portions 1Pr of the roofing material 1Rf. The base Bp2 has two convex portions 1Pr adjacent to each other in the cross direction intersecting the second direction (−Y direction) and one concave portion 1Rs located between the two convex portions 1Pr. Has a first plate-like part Pl2. The base Bp2 has a hole H2a located in a state of penetrating in the + Z direction on each apex Pk1 of two adjacent convex portions 1Pr. Each hole H2a is positioned in a state in which the protruding portion Pj1 of the first fastening portion 1Mt is inserted. On the base Bp2, there are two pressing members Ps2 positioned in a state where the protruding portions Pj1 are inserted therethrough. The second nut Nt2 as a stopper engages with a portion of the male threaded portion Ml1 of the protruding portion Pj1 that is located on the second end portion Ed2 side with respect to the first nut Nt1 on each pressing member Ps2. Located in the state. The two second nuts Nt2 and the roofing material 1Rf are positioned in a state of sandwiching the base Bp2. And the connection part Cn2 of the fixing tool 2Fx is located in a state where it is connected to the part located along the second surface 1Fs of the supported part 1Sp that is the lowest part of the concave part 1Rs of the base part Bp2. ing. Here, the connection portion Cn2 is located at a substantially central portion in the third direction (+ X direction) of the base portion Bp2. And the standing part St2 located so that it may extend along the 1st direction (+ Z direction) from the connection part Cn2 has the structure similar to 2nd standing part St2b in 1st Embodiment.

<2-2. Third Embodiment>
In the first embodiment, for example, as shown in FIG. 17, a roof material 1Rf as a base is a portion (supported portion) 1Sp in which a first surface 1Bs is supported by a girder as a base portion 1Bm. Suppose you have one. In this case, for example, the connection portion Cn2 may be positioned in a state of being connected to a portion of the base portion Bp2 that is positioned along the second surface 1Fs of the supported portion 1Sp. If such a configuration is adopted, for example, even if a positive pressure load directed downward (−Z direction) is applied from the solar cell module 2Mo to the standing portion St2 due to snow or wind pressure, among the roofing material 1Rf The part to which the positive pressure load is applied is supported by the girder material, so it is difficult to break.

  In the example of FIG. 17, the base part Bp2 of the fixing tool 2Fx is located in a state where the one convex part 1Pr is sandwiched from above the one convex part 1Pr of the roofing material 1Rf. It is located along the second surface 1Fs until it reaches the bottom of 1Rs. Here, the first connection portion Cn2a of the fixing tool 2Fx is the first portion of the supported portion 1Sp that is the lowermost portion of the concave portion 1Rs located on the −X direction side of the first fastening portion 1Mt of the base portion Bp2. It is located in a state where it is connected to a portion located along the two surfaces 1Fs. Further, the second surface of the supported portion 1Sp that is the lowermost portion of the concave portion 1Rs in which the second connecting portion Cn2b of the fixing tool 2Fx is located on the + X direction side of the first fastening portion 1Mt of the base portion Bp2. It is located in a state where it is connected to a portion located along 1Fs.

<2-3. Fourth Embodiment>
In each of the above embodiments, for example, as shown in FIG. 18, the thickness of the coating layer 2Cv may be larger on the concave portion 1Rs than on the convex portion 1Pr. In this case, for example, it is conceivable that the thickness of the coating layer 2Cv gradually increases from the convex portion 1Pr to the concave portion 1Rs. Such a change in the thickness of the coating layer 2Cv is achieved, for example, by appropriately adjusting the viscosity of the liquid that is the basis of the coating layer 2Cv used in the spraying method or the like, so that the convex portion 1Pr is changed to the concave portion 1Rs. This can be caused by the upward flow of liquid.

  Here, as shown in FIG. 18, for example, the first convex portion is located in a state in which one or more convex portions 1Pr in the roofing material 1Rf are aligned in the third direction (+ X direction). It is assumed that 1Pra, the second convex portion 1Prb, and the third convex portion 1Prc are included. In this case, the roofing material 1Rf has a first concave portion 1Rsa between the first convex portion 1Pra and the second convex portion 1Prb. The roofing material 1Rf has a second concave portion 1Rsb between the second convex portion 1Prb and the third convex portion 1Prc. The first plate-like part Pl2 of the base part Bp2 is located along the second convex part 1Prb in the intersecting direction intersecting the second direction (−Y direction). The first connection portion Cn2a is located on a portion of the roof material 1Rf that is closer to the first concave portion 1Rsa than the top portion Pk1 of the second convex portion 1Prb. The second connection portion Cn2b is located on a portion of the roofing material 1Rf that is closer to the second concave portion 1Rsb than the top portion Pk1 of the second convex portion 1Prb. Here, a thickness of a portion of the coating layer 2Cv that is located in a state of covering the first standing portion St2a and the second standing portion St2b is defined as a first thickness D1. Moreover, let thickness of the part located on the top part Pk1 among coating layer 2Cv be 2nd thickness D2. Here, the first thickness D1 may be larger than the second thickness D2.

  Here, for example, only one standing portion St2 of the two standing portions St2 may exist as in the second embodiment. In this case, for example, the connection portion Cn2 is positioned on a portion of the roofing material 1Rf that is closer to at least one of the first concave portion 1Rsa and the second concave portion 1Rsb than the top portion Pk1 of the second convex portion 1Prb. If you do.

  By the way, for example, in a portion where the standing portion St2 and the covering layer 2Cv are in contact with each other portion of the covering layer 2Cv due to the bending of the standing portion St2 due to a load such as wind load on the solar cell device 2. In comparison, the aging of the coating layer 2Cv tends to occur. Specifically, a gap is likely to be generated between the standing portion St2 and the covering layer 2Cv, and this gap may become a water intrusion path toward the roofing material 1Rf. On the other hand, for example, if the first thickness D1 of the covering layer 2Cv covering the standing portion St2 is larger than the second thickness D2 of the covering layer 2Cv covering the top portion Pk1, the standing portion is temporarily provided. Even if a gap starts to form between St2 and the covering layer 2Cv, the time required for the gap to reach the roofing material 1Rf becomes longer. In addition, for example, even if a gap is generated between the standing portion St2 and the covering layer 2Cv, the distance between the upper surface of the covering layer 2Cv and the roofing material 1Rf is increased, and moisture is also absorbed by the capillary phenomenon up to the roofing material 1Rf. It becomes difficult to reach. For this reason, it is difficult for moisture to enter the roof 1. As a result, the waterproofness of the roof 1 can be improved.

  In the third embodiment, for example, as shown in FIG. 19, the thickness of the coating layer 2Cv may be larger on the concave portion 1Rs than on the convex portion 1Pr. In this case, the roofing material 1Rf as the base has a supported portion 1Sp in which the first surface 1Bs is supported by the beam material as the base portion 1Bm. And the connection part Cn2 is located in the state connected to the part located along the 2nd surface 1Fs of the supported part 1Sp among the base parts Bp2. When such a configuration is employed, the same effects as those of the third embodiment are achieved. In addition, the first thickness D1 can be clearly larger than the second thickness D2. As a result, the waterproofness of the roof 1 can be further improved.

<2-4. Fifth Embodiment>
In each of the above embodiments, for example, as shown in FIG. 20, the base Bp2 is positioned between the second surface 1Fs and the base Bp2 of the roofing material 1Rf as a base in a state where the base Bp2 is adhered to the second surface 1Fs. The first adhesive layer AL2 may further exist. In this case, for example, the base Bp2 is bonded onto the roofing material 1Rf as a base, so that even if a load is applied to the solar cell module 2Mo, the fixing tool 2Fx is not easily detached from the roofing material 1Rf. In this case, even if a load is applied to the solar cell module 2Mo, it is difficult to cause a problem that the fixing tool 2Fx is displaced on the roofing material 1Rf. In other words, the load bearing performance of the fixing tool 2Fx fixed on the roofing material 1Rf can be increased. Here, for example, a butyl adhesive having low moisture permeability can be applied to the material of the first adhesive layer AL2. At this time, the waterproofness of the roof 1 can be further improved.

<2-5. Sixth Embodiment>
In each of the above embodiments, for example, as shown in FIG. 21, the fixing tool 2Fx is placed on the first adhesive layer AL2 on the portion of the convex portion 1Pr of the roofing material 1Rf where the first fastening portion 1Mt does not exist. It may be fixed by. Specifically, instead of the first fastening portion 1Mt, the base portion Bp2 is positioned between the second surface 1Fs and the base portion Bp2 of the roofing material 1Rf as a base, in a state of being bonded to the second surface 1Fs. The first adhesive layer AL2 may be present. If such a configuration is adopted, for example, even when the male thread Ml1 of the projecting part Pj1 of the first fastening part 1Mt is rusted and the second nut Nt2 cannot be combined with the male thread Ml1, the roof The fixing tool 2Fx can be fixed on the material 1Rf. Further, for example, even if the protruding portion Pj1 of the first fastening portion 1Mt is the head of a wood screw, the fixing tool 2Fx can be fixed on the roofing material 1Rf.

<2-6. Seventh Embodiment>
In each of the above-described embodiments, for example, as shown in FIG. 22, the position is in a state of covering a region extending from the base Bp2 of the fixing tool 2Fx and the base Bp2 to the second surface 1Fs of the roofing material 1Rf as the base. There may also be a reticulated mesh MS0. Then, the covering layer 2Cv may be positioned in a state of covering the mesh body MS0 together with the base Bp2. Here, for example, a wire mesh made of stainless steel, galvanized iron wire, brass, or the like is applied to the mesh body MS0. In addition, a member (also referred to as a punching metal) in which a large number of through holes are present in a metal thin plate made of, for example, stainless steel or aluminum may be applied to the mesh body MS0.

  In the above configuration, for example, the base Bp2 and the mesh body MS0 located over a wider range than the base Bp2 are covered so as to be buried in the coating layer 2Cv. For this reason, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf as the base due to wind pressure or the like, the base Bp2 is unlikely to rise from the roof material 1Rf due to the presence of the covering layer 2Cv and the mesh body MS0. Thereby, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be easily improved, and the strength of fixing the solar cell device 2 to the roofing material 1Rf can be easily improved.

<2-7. Eighth Embodiment>
In the first to fifth embodiments and the seventh embodiment, for example, as shown in FIG. 23A, a plate-like and annular stopper Nt2A is used instead of the second nut Nt2. It may be adopted. The stopper Nt2A includes, for example, a ring portion LG0 and a plurality of (for example, five) protrusion portions FK0 protruding inward from the inner edge portion Ic0 of the ring portion LG0. Here, for example, the protrusion FK0 can be elastically deformed. In this case, in a state where the protruding portion Pj1 of the first fastening portion 1Mt is inserted into the through hole IS3A of the stopper Nt2A, at least one of the convex portion and the concave portion along the circumferential direction of the protruding portion Pj1 is provided. You may be located in the state which protrusion part FK0 is engaging.

  Further, for example, instead of the annular stopper Nt2A shown in FIG. 23 (a), as shown in FIG. 23 (b), when viewed in plan, the plate-like and C-shaped stopper Nt2B May be adopted. The stopper Nt2B includes, for example, a C-shaped C-shaped portion CL0 in a plan view, and a plurality of (for example, three) projecting portions FK0 projecting inward from the inner edge portion Ic0 of the C-shaped portion CL0. Have. Here, for example, the protrusion FK0 can be elastically deformed. In this case, in a state where the protruding portion Pj1 of the first fastening portion 1Mt is inserted into the internal space IS3B of the stopper Nt2B, at least one of the convex portion and the concave portion along the circumferential direction of the protruding portion Pj1 is provided. You may be located in the state which protrusion part FK0 is engaging.

  In FIG. 23A and FIG. 23B, the virtual outer edge Oc1 of the convex portion and the virtual outer edge Ic1 of the concave portion along the circumferential direction of the protrusion Pj1 are drawn by a two-dot chain line. Here, for example, even when the male screw part Ml1 of the projecting part Pj1 is rusted and the second nut Nt2 cannot be combined with the male screw part Ml1, the stopper Nt2A or the stopper The tool Nt2B can be fitted. Thereby, the fixing tool 2Fx can be fixed to the roof material 1Rf to some extent firmly. The stoppers Nt2A and Nt2B can be formed by, for example, pressing a metal plate such as stainless steel or brass.

<2-8. Ninth Embodiment>
In the first to fifth embodiments, the seventh embodiment, and the eighth embodiment, the fixing tool 2Fx is pressed against the second surface 1Fs of the roofing material 1Rf by the pressing member Ps2 and the second nut Nt2. The fixing tool 2Fx is fixed to the roofing material 1Rf, but is not limited thereto. For example, as shown in FIGS. 24 to 28, the fixing tool 2Fx includes a first fixing member 2Fx1 fixed to the roofing material 1Rf, and a second fixing member 2Fx2 fixed to the first fixing member 2Fx1. And may be divided into In other words, for example, the fixing tool 2Fx may include the first fixing member 2Fx1 and the second fixing member 2Fx2. Even if such a configuration is employed, the same effects as those of the first to fifth embodiments, the seventh embodiment, and the eighth embodiment can be obtained.

  Here, the first fixing member 2Fx1 is located on the second surface 1Fs of the roofing material 1Rf. The second fixing member 2Fx2 is positioned on the first fixing member 2Fx1 in a state of being fixed to the first fixing member 2Fx1. In other words, the first fixing member 2Fx1 has a function for fixing the second fixing member 2Fx2 to the roofing material 1Rf. In the example of FIGS. 24 to 28, the first fixing member 2Fx1 is positioned in a state of being attached to the protruding portion Pj1. Similarly to the fixing tool 2Fx according to the first to fifth embodiments, the seventh embodiment, and the eighth embodiment, the second fixing member 2Fx2 includes the base portion Bp2 and one or more standing members. Part St2. In the example of FIGS. 24, 27, and 28, the second fixing member 2Fx2 includes a base portion Bp2 and two standing portions St2.

  The first fixing member 2Fx1 includes, for example, a base portion Bp1 and one or more protruding portions Wp1.

  The base portion Bp1 is located along the convex portion 1Pr of the roofing material 1Rf as a base in the crossing direction crossing the second direction (−Y direction). In the examples of FIGS. 24 and 26 to 28, the base portion Bp1 is a plate-like portion having a curved surface curved along the convex portion 1Pr of the roofing material 1Rf.

  Further, the base portion Bp1 is, for example, a notch that is located in a state in which the protruding portion Pj1 is inserted between the first nut Nt1 as the second member and the second surface 1Fs of the roofing material 1Rf. Part SL1. In the examples of FIGS. 24 and 26 to 28, the cutout portion SL1 is located on the top portion Pk1 of the convex portion 1Pr of the base portion Bp1. The cutout portion SL1 is positioned so as to penetrate the base portion Bp1 in the first direction (+ Z direction) and extend along the second direction (−Y direction) so as to open the + Y direction side. . More specifically, the cutout portion SL1 has a U-shaped outer edge in plan view. The width of the cutout portion SL1 in the third direction (+ X direction) is set to be at least smaller than the distance between two opposing side surfaces of the first nut Nt1 as the second member. In the example of FIGS. 24 and 26 to 28, the base portion Bp1 is located in a state of being hooked on a portion between the roof material 1Rf and the washer Ws1 in the protruding portion Pj1. Thereby, for example, the first fixing member 2Fx1 can be fixed so as not to move in the third direction (+ X direction) and the first direction (+ Z direction) along the eaves.

  In addition, the base portion Bp1 includes, for example, a portion located between the base portion Bp2 of the second fixing member 2Fx and the second surface 1Fs of the roofing material 1Rf. In the example of FIGS. 24 and 28, almost the entire base portion Bp1 is located between the base portion Bp2 of the second fixing member 2Fx and the second surface 1Fs of the roofing material 1Rf.

  One or more protruding portions Wp1 are located in a state protruding from the base portion Bp1 in the first direction (+ Z direction). In the example of FIGS. 24 to 28, one or more protruding portions Wp1 of the first fixing member 2Fx1 include a first protruding portion Wp1a, a second protruding portion Wp1b, and a third protruding portion Wp1c. Here, the first protruding portion Wp1a and the second protruding portion Wp1b are plate-like portions protruding in the first direction (+ Z direction) along the YZ plane, respectively. The third protruding portion Wp1c is a plate-like portion protruding in the first direction (+ Z direction) along the XZ plane.

  The one or more protruding portions Wp1 have a portion where the second fixing member 2Fx2 is fixed. In other words, at least a part of the one or more protruding portions Wp1 has a function of connecting the first fixing member 2Fx1 and the second fixing member 2Fx2.

  In the example of FIGS. 24, 27, and 28, the one or more standing portions St2 of the second fixing member 2Fx2 include a first standing portion St2a and a second standing portion St2b. Then, the first standing portion St2a is fixed to the first protruding portion Wp1a. In the example of FIGS. 24 and 28, the first projecting portion Wp1a and the first standing portion St2a are overlaid in the third direction (+ X direction). Here, for example, by a third fastening portion Sw1 such as a tapping screw, a rivet or a bolt and a nut that is continuously inserted through the hole H1a of the first protruding portion Wp1a and the hole H2b of the first standing portion St2a. The first standing portion St2a can be fixed to the first protruding portion Wp1a. Here, for example, the hole H1a is positioned so as to penetrate the first protruding portion Wp1a in the third direction (+ X direction). The hole H2b is positioned so as to penetrate the first standing portion St2a in the third direction (+ X direction). Further, the second standing portion St2b is fixed to the second protruding portion Wp1b. In the example of FIGS. 24 and 28, the second protruding portion Wp1b and the second standing portion St2b are in a state of being overlapped in the third direction (+ X direction). Here, for example, by a third fastening portion Sw1 such as a tapping screw, a rivet or a bolt and a nut continuously inserted through the hole H1a of the second protruding portion Wp1b and the hole H2b of the second standing portion St2b. The second standing portion St2b can be fixed to the second protruding portion Wp1b. Here, for example, the hole H1a is positioned so as to penetrate the second protruding portion Wp1b in the third direction (+ X direction). The hole H2b is located so as to penetrate the second standing portion St2b in the third direction (+ X direction).

  The first fixing member 2Fx1 having the above-described configuration can be formed, for example, by subjecting a steel plate such as a zinc-aluminum plated steel plate or a stainless steel plate having a plate thickness of about 1 mm to 2.5 mm to press working. Here, for example, the thickness of the first fixing member 2Fx1 is set to be smaller than the thickness of the second fixing member 2Fx2. Here, for example, if a steel plate having high rigidity is applied to the first fixing member 2Fx1, the rigidity and strength of the first fixing member 2Fx1 are ensured even if the plate thickness of the first fixing member 2Fx1 is reduced. Can be done.

  Here, for example, the base portion Bp1 can be inserted between the roofing material 1Rf and the washer Ws1 and hooked on the protruding portion Pj1 as follows. First, as shown in FIG. 25, on the + Y direction side of the protrusion Pj1 of the first fastening portion 1Mt, the base portion Bp1 is positioned along the second surface 1Fs of the convex portion 1Pr of the roofing material 1Rf. The first fixing member 2Fx1 is disposed. Next, as shown in FIGS. 25 to 26, the first fixing member 2Fx1 is slid in the second direction (−Y direction) along the second surface 1Fs of the convex portion 1Pr, and the roofing material 1Rf. The notch portion SL1 of the base portion Bp1 is inserted between the second surface 1Fs and the washer Ws1. Here, for example, if the packing Pg1 exists between the second surface 1Fs and the washer Ws1, and the thickness of the packing Pg1 is larger than the thickness of the base portion Bp1, the second surface 1Fs and the washer Ws1 In between, the notch part SL1 of the base part Bp1 can be inserted. At this time, for example, the second surface 1Fs and the washer Ws1 can be obtained by hitting a batten made in contact with the surface on the + Y direction side of the third protruding portion Wp1c of the first fixing member 2Fx1 with a plastic hammer or the like. The notch SL1 of the base portion Bp1 can be inserted in between. Then, the innermost portion in the + Y direction of the cutout portion SL1 is brought into contact with the portion between the roof material 1Rf and the washer Ws1 in the protruding portion Pj1. At this time, for example, the packing Pg1 existing between the second surface 1Fs and the washer Ws1 may be completely pushed out, may be pushed out partway, or may not be pushed out at all. For example, even if the packing Pg1 existing between the second surface 1Fs and the washer Ws1 is pushed out, if the covering layer 2Cv covers the protruding portion Pj1, the waterproof property of the roof 1 is lowered. Hard to do. Here, for example, if the packing Pg1 existing between the second surface 1Fs and the washer Ws1 is pushed out and the thickness of the base portion Bp1 is smaller than the distance between the second surface 1Fs and the washer Ws1, the base portion A spacer may be positioned between Bp1 and washer Ws1.

  For example, as illustrated in FIG. 24, the covering layer 2Cv fills the base portion Bp1 and at least the base portion Bp1 side portion of the one or more protruding portions Wp1 in the first fixing member 2Fx1. It is located in the covering state. Thereby, for example, on the second surface 1Fs of the roofing material 1Rf, the first fixing member 2Fx1 can be fixed so as not to move in the second direction (−Y direction). As a result, for example, the fixing tool 2Fx can be fixed so as not to move in the −Y direction on the second surface 1Fs of the roofing material 1Rf.

  In the ninth embodiment, for example, as shown in FIG. 24, the covering layer 2Cv is positioned in a state of covering the base portion Bp2 and the protruding portion Pj1 of the second fixing member 2Fx2. Further, for example, the covering layer 2Cv covers the first protruding portion Wp1a, the second protruding portion Wp1b, the third protruding portion Wp1c, and the third fastening portions Sw1 so as to fill the first fixing member 2Fx1. May be located. Thereby, for example, water hardly enters from between the first fixing member 2Fx1 and the second fixing member 2Fx2.

  Here, for example, the first layer LY1 of the covering layer 2Cv has a thickness that covers the base portion Bp2 of the second fixing member 2Fx2 and the protruding portion Pj1 of the first fastening portion 1Mt. It may be. For example, the first layer LY1 covers the first protruding portion Wp1a, the second protruding portion Wp1b, the third protruding portion Wp1c, and the respective third fastening portions Sw1 of the first fixing member 2Fx1. You may have thickness which becomes. In addition, for example, the upper portions of the first protruding portion Wp1a, the second protruding portion Wp1b, and the third protruding portion Wp1c of the first fixing member 2Fx1 may be in a state of protruding from the first layer LY1. In this case, for example, the second layer LY2 and the third layer LY3 of the coating layer 2Cv are respectively connected to the upper portions of the first protruding portion Wp1a, the second protruding portion Wp1b, and the third protruding portion Wp1c and the third fastening portions. You may be located in the state coat | covered so that part Sw1 may be filled. In the example of FIG. 24, the third protruding portion Wp1c is completely buried in the first layer LY1, and the upper portions of the first protruding portion Wp1a and the second protruding portion Wp1b protrude from the first layer LY1. The second layer LY2 and the third layer LY3 are located in a state of covering the upper portions of the first protruding portions Wp1a and the second protruding portions Wp1b and the respective third fastening portions Sw1. Even if such a configuration is adopted, for example, it becomes difficult for water to enter from between the first fixing member 2Fx1 and the second fixing member 2Fx2.

  Also in the ninth embodiment, the support portion Sp2 having the hole H2c among the standing portions St2 is located in a state of protruding from the coating layer 2Cv in the first direction (+ Z direction). Then, for example, as shown in FIG. 29, the beam member 2Hm is installed on the two fixing tools 2Fx via the connection fitting 2Cn fixed to each standing portion St2 by the second fastening portion 2Mt. It is located in the state that has been.

  By the way, for example, if a long time has passed since the roof 1 was provided, the male screw portion Ml1 of the first fastening portion 1Mt is covered with rust or rusted due to aging. It is also possible to assume a state where In such a case, for example, there is a possibility that a new fastener such as the second nut Nt2 cannot be fitted to the male screw portion Ml1 of the first fastening portion 1Mt.

  Even in such a case, as described above, for example, the notch portion SL1 of the base portion Bp1 is hooked on the portion between the roof material 1Rf and the washer Ws1 in the protruding portion Pj1 of the first fastening portion 1Mt. The first fixing member 2Fx1 can be fixed on the roofing material 1Rf. Here, for example, if the first nut Nt1 is a nut with a flange, the cutout portion SL1 of the base portion Bp1 is hooked on a portion between the roof material 1Rf and the first nut Nt1 in the protruding portion Pj1. Thus, the first fixing member 2Fx1 can be fixed on the roofing material 1Rf. Then, by fixing the second fixing member 2Fx2 to the first fixing member 2Fx1, the second fixing member 2Fx2 can be fixed to the roofing material 1Rf via the first fixing member 2Fx1. In other words, the fixing tool 2Fx can be fixed to the roofing material 1Rf. If such a configuration is employed, for example, the roof material 1Rf is utilized by using the first fastening portion 1Mt without repairing the male screw portion Ml1 that has deteriorated over time with the use of a tool such as a tap. The second fixing member 2Fx2 can be fixed on the first fixing member 2Fx1 via the first fixing member 2Fx1. Therefore, for example, when installing the solar cell device 2 on the roof 1, the workability can be improved by reducing the number of man-hours.

  Here, for example, if the base portion Bp2 of the second fixing member 2Fx2 has a through-hole portion H2d positioned in a state where the protruding portion Wp1 is inserted, the first fixing member 2Fx1 The second fixing member 2Fx2 is not easily displaced.

  In the example of FIGS. 24, 27, and 28, the base Bp2 includes a first through-hole portion H2da, a second through-hole portion H2db, and a third through-hole portion H2dc. The first through-hole portion H2da is located in a state where the first protruding portion Wp1a is inserted. The second through-hole portion H2db is located in a state where the second protruding portion Wp1b is inserted. The third through-hole portion H2dc is located in a state where the third protruding portion Wp1c is inserted.

  More specifically, the first through hole H2da is located on the opposite side of the second connection portion Cn2b with respect to the first connection portion Cn2a of the base Bp2. The first through-hole portion H2da has a shape and a size that allow the first protruding portion Wp1a to be inserted therethrough. For example, an elongated narrow hole whose second direction (+ Y direction) is the longitudinal direction is applied to the first through-hole portion H2da. The second through-hole portion H2db is located on the side opposite to the first connection portion Cn2a with respect to the second connection portion Cn2b of the base portion Bp2. The second through-hole portion H2db has a shape and a size that allow the second protruding portion Wp1b to be inserted therethrough. For example, an elongated narrow hole whose second direction (+ Y direction) is the longitudinal direction is applied to the second through-hole portion H2db. The third through hole H2dc is located on the + Y direction side of the base Bp2. The third hole Hdc has a shape and a size through which the third protruding portion Wp1c can be inserted. For the third through hole H2dc, for example, a long and narrow square hole whose longitudinal direction is the bending direction in which the base Bp2 is curved along the convex portion 1Pr is applied.

  The second fixing member 2Fx2 has a plate thickness of, for example, about 2 mm to 6 mm. The second fixing member 2Fx2 can be formed by, for example, extrusion molding of an aluminum alloy. Thereby, for example, the cost required for molding the second fixing member 2Fx2 can be reduced and the weight of the second fixing member 2Fx2 can be reduced. And the load to the roof 1 can be reduced by weight reduction of the 2nd fixing member 2Fx2.

  The second fixing member 2Fx2 having the above-described configuration is, for example, as follows, in the state where the base portion Bp1 is inserted between the roofing material 1Rf and the washer Ws1 and is hooked on the protruding portion Pj1. It is attached to the member 2Fx1. Here, for example, as shown in FIGS. 27 to 28, first, the second fixing member 2Fx2 is placed on the first fixing member 2Fx1. At this time, the three protruding portions Wp1 of the first fixing member 2Fx1 are respectively inserted into the three through-hole portions H2d of the second fixing member 2Fx2. Specifically, the first protruding portion Wp1a is inserted into the first through hole portion H2da, the second protruding portion Wp1b is inserted into the second through hole portion H2db, and the third protruding portion Wp1c is inserted into the third through hole. Part H2dc is inserted. As a result, as shown in FIG. 28, the first protruding portion Wp1a and the first standing portion St2a are overlapped in the third direction (+ X direction), and the second protruding portion Wp1b and the second standing portion are set up. The portion St2b is overlaid in the third direction (+ X direction). At this time, the hole H1a of the first protruding portion Wp1a and the hole H2b of the first standing portion St2a face each other, and the hole H1a of the second protruding portion Wp1b and the hole portion of the second protruding portion St2b H2b is opposite. Then, as shown in FIG. 28, a fastening member such as a tapping screw, a rivet, or a bolt is inserted through the hole H1a of the first protruding portion Wp1a and the hole H2b of the first standing portion St2a, so that the first The first standing portion St2a is fixed to the protruding portion Wp1a. In addition, a fastening member such as a tapping screw, a rivet or a bolt is inserted into the hole H1a of the second protruding portion Wp1b and the hole H2b of the second rising portion St2b, and the second protruding portion Wp1b is secondly set up. The part St2b is fixed.

  Here, for example, the first standing with respect to the virtual plane Vp1 passing through the top portion Pk1 and the projecting portion Pj1 and along both the first direction (+ Z direction) and the second direction (−Y direction). The installation part St2a and the second standing installation part St2b may be positioned symmetrically. At this time, for example, the first protruding portion Wp1a and the second protruding portion Wp1b may be positioned symmetrically with respect to the virtual surface Vp1. And, for example, if the first standing portion St2a is positioned in a state fixed to the first protruding portion Wp1a, and the second standing portion St2b is positioned in a state fixed to the second protruding portion Wp1b, the sun The load applied to the battery module 2Mo can be transmitted to the first fastening portion 1Mt with a good balance. Thereby, damage to the fixing tool 2Fx and lifting from the second surface 1Fs hardly occur. As a result, damage to the covering layer 2Cv and peeling of the covering layer 2Cv from the roofing material 1Rf are unlikely to occur.

  Here, for example, the third protruding portion Wp1c extends in the first direction (+ Z direction) from the portion along the convex portion 1Pr in the crossing direction intersecting the second direction (−Y direction) of the base portion Bp1. It may be located in a protruding state. In the example of FIGS. 24 to 28, the third protruding portion Wp1c is the first portion from the portion along the direction in which the base portion Bp1 is bent on the end portion side in the + Y direction (also referred to as a bending direction) of the base portion Bp1. It is located in a state protruding in one direction (+ Z direction). Due to the presence of the third protruding portion Wp1c, for example, the base portion Bp1 can be reinforced. For example, when a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roof material 1Rf due to wind pressure or the like, a tensile load in the first direction (+ Z direction) is applied to each of the first protruding portion Wp1a and the second protruding portion Wp1b. Join. At this time, for example, since the base portion Bp1 is not easily deformed due to the presence of the third protruding portion Wp1c, the base portion Bp1 and the base portion Bp2 are not easily lifted from the roofing material 1Rf. As a result, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be easily improved, and the strength of fixing the solar cell device 2 to the roofing material 1Rf can be easily improved.

  Here, the covering layer 2Cv does not have three layers including the first layer LY1, the second layer LY2, and the third layer LY3. For example, as shown in FIG. 30, one layer containing a curable resin It may have a resin-containing layer. Here, for example, polyurea resin, epoxy resin, acrylic rubber resin, or silicone resin is applied to the curable resin. Examples of the polyurea resin include a resin compound formed by a chemical reaction between an isocyanate and a polyamine. Specifically, the polyurea resin includes, for example, an aromatic polyurea resin, an aliphatic polyurea resin, or a polyaspartate-based polyurea resin.

  In this case, for example, by spraying a polyurea resin paint on the second surface 1Fs of the roofing material 1Rf, the first fixing member 2Fx1, and the second fixing member 2Fx2 by a spraying method or the like, A covering layer 2Cv may be formed. At this time, the covering layer 2Cv is, for example, the second surface 1Fs of the roofing material 1Rf, the base portion Bp2 of the second fixing member 2Fx2, the protruding portion Pj1 of the first fastening portion 1Mt, and the protruding portions Wp1 of the first fixing member 2Fx1. And it forms so that it may have thickness which covers each 3rd fastening part Sw1. However, for example, the support portion Sp2 having the hole portion H2c among the standing portions St2 of the second fixing member 2Fx2 protrudes from the coating layer 2Cv in the first direction (+ Z direction). Here, for example, a gap between the second fixing member 2Fx2 and the roofing material 1Rf and a gap between the first fixing member 2Fx1 and the second fixing member 2Fx2, water from the top of the roof 1 to the bottom of the roof 1 is used. The covering layer 2Cv may be formed at a position that closes the intrusion route. Here, the thickness of the coating layer 2Cv can be set to about 2 mm to 10 mm. Thus, for example, if the covering layer 2Cv is a single layer composed of a curable resin such as a polyurea resin, the weight of the roof 1 is unlikely to increase. For this reason, such a configuration is useful, for example, under conditions where the roof 1 has a weight limit.

  Here, for example, as shown in FIG. 31, the base portion Bp1 of the first fixing member 2Fx1 is located along the convex portion 1Pr in the intersecting direction intersecting the second direction (−Y direction). A plate-like portion (also referred to as a second plate-like portion) Pl1 may be included. For example, if the second surface 1Fs of the convex portion 1Pr is a surface curved in the crossing direction, the second plate-shaped portion Pl1 is curved along the second surface 1Fs of the curved convex portion 1Pr. The form which has the shape which can be considered is considered. In this case, for example, the gap between the base portion Bp1 and the roofing material 1Rf is reduced. Thereby, the covering layer 2Cv can be easily formed on the roofing material 1Rf without a gap. As a result, for example, the waterproofness of the roof 1 can be easily improved.

  The second plate-like portion Pl1 is, for example, a convex portion from the connected portion Cn1 in a direction away from the portion Cn1 to which the protruding portion Wp1 is connected (also referred to as a connected portion) and the top portion Pk1 of the convex portion 1Pr. And a portion located along 1Pr. In the example of FIG. 31, the second plate-like portion Pl1 is connected to the connected portion (also referred to as the first connected portion) Cn1a in which the first protruding portion Wp1a is connected to the second protruding portion Wp1b. A certain connected portion (also referred to as a second connected portion) Cn1b. Then, the second plate-like part Pl1 is located from the first connected part Cn1a in the direction away from the top part Pk1 along the convex part 1Pr, and from the second connected part Cn1b in the direction away from the top part Pk1. And a portion located along the convex portion 1Pr. At this time, for example, the second plate-like portion Pl1 may be further positioned along the concave portion 1Rs. If such a configuration is adopted, for example, the strength of fixing the fixing tool 2Fx to the roofing material 1Rf can be easily improved, and the strength of fixing the solar cell device 2 to the roofing material 1Rf can be easily improved. The first fixing member 2Fx1 having the above-described configuration is subjected to press working and bending or welding using a steel plate such as a zinc-aluminum plated steel plate or a stainless steel plate having a thickness of about 1 mm to 2.5 mm, for example. Can be formed. Here, for example, the first protruding portion Wp1a and the second protruding portion Wp1b are bent by 180 °, connected by welding of separate plate-shaped steel plates, or in the second direction (−Y direction of the plate-shaped steel plates). ) Or the like along a part of the surface.

  Here, for example, as shown in FIG. 31, the first plate-like portion Pl2 of the base Bp2 of the second fixing member 2Fx2 is located outside the connection portion Cn2 in the direction away from the hole H2a. May not be included. For example, the first plate-like portion Pl2 may not have a portion positioned so as to extend from the first connection portion Cn2a in a direction away from the hole H2a. In this case, for example, the second fixing member 2Fx2 may not have the first through hole H2da. Further, for example, the first plate-like portion Pl2 may not have a portion positioned so as to extend from the second connection portion Cn2b in a direction away from the hole H2a. In this case, for example, the second fixing member 2Fx2 may not have the second through-hole portion H2db.

<2-9. 10th Embodiment>
Next, the solar cell apparatus 2 according to the tenth embodiment will be described with reference to FIGS. 32 (a) to 34 (c). The roof 1 as the installation target part located in a state where the solar cell device 2 is attached is, for example, a flat land roof. The roof material 1Rf as the base of the land roof can be made of concrete such as ALC. Here, the roofing material 1Rf has, for example, a first surface 1Bs facing downward (−Z direction) and a second surface (also referred to as roof surface) 1Fs facing upward (+ Z direction).

  As shown in FIG. 32A and FIG. 32B, the solar cell device 2 according to the tenth embodiment includes, for example, a plurality of base portions 2Bk, a gantry portion 2Mot, a solar cell module 2Mo, and a covering. Layer 2Cv.

  The plurality of base portions 2Bk have a function as a foundation (also referred to as a placement foundation) for installing the solar cell module 2Mo on the second surface 1Fs of the roofing material 1Rf, for example. The plurality of base portions 2Bk are in a state of being placed on the second surface 1Fs of the roofing material 1Rf, for example. For example, a concrete block or the like is applied to each base portion 2Bk. Each base portion 2Bk has a bottom surface and a weight of a certain size in order to stably place the solar cell device 2 on the roofing material 1Rf. The weight of each base portion 2Bk is, for example, about several kg to several tens kg. Such a base portion 2Bk can be manufactured, for example, by pouring concrete into a mold and molding it.

  The gantry 2Mot is positioned in a state of holding a plurality of solar cell modules 2Mo on the plurality of bases 2Bk positioned on the roof 1 as the installation target unit. For example, the gantry 2Mot is fixed to each of the plurality of bases 2Bk with an anchor metal fitting An1 or the like. The anchor metal fitting An1 is fixed to the base portion 2Bk, for example, by being attached to a chemical anchor disposed in a hole formed in the upper portion of the base portion 2Bk, or by embedding the lower portion when the base portion 2Bk is formed. obtain. Further, the gantry 2Mot is fixed to the anchor metal fitting An1 by, for example, a fastening part such as a set of a bolt and a nut. Further, the gantry 2Mot can be formed using, for example, an aluminum alloy or a galvanized steel sheet. Specifically, the gantry 2Mot can be manufactured by connecting a plurality of members formed by extrusion molding of an aluminum alloy or roll molding or press molding using a plate material such as a galvanized steel plate.

  For example, the solar cell module 2Mo is positioned in a state of being held by the gantry 2Mot. In the example of FIG. 32 (a) and FIG. 32 (b), it is located in the state where the four solar cell modules 2Mo are hold | maintained at one stand part 2Mot.

  The covering layer 2Cv is located, for example, in a state of covering the top of the roof 1 as the installation target portion. In the tenth embodiment, the covering layer 2Cv is located, for example, in a state of covering the plurality of base portions 2Bk and the second surface 1Fs of the roofing material 1Rf. Specifically, the covering layer 2Cv is, for example, a portion P1m between the plurality of base portions 2Bk and the plurality of base portions 2Bk in the second surface 1Fs of the roofing material 1Rf and a portion around the plurality of base portions 2Bk. It is located in a state of continuously covering Plp. Here, since the covering layer 2Cv is positioned, for example, in a state of covering the plurality of base portions 2Bk, the covering layer 2Cv is positioned in a state of covering the boundary portion between each base portion 2Bk and the anchor metal fitting An1. Yes.

  A curable resin is applied to the material of the coating layer 2Cv. For example, polyurea resin, epoxy resin, acrylic rubber resin, or silicone resin is applied to the curable resin. Examples of the polyurea resin include a resin compound formed by a chemical reaction between an isocyanate and a polyamine. Specifically, the polyurea resin includes, for example, an aromatic polyurea resin, an aliphatic polyurea resin, or a polyaspartate-based polyurea resin.

  Here, the configuration in which the covering layer 2Cv covers both the second surface 1Fs and the plurality of base portions 2Bk is, for example, after the plurality of base portions 2Bk are arranged on the second surface 1Fs, and curing the polyurea resin or the like It can be realized by applying a coating of a functional resin. Specifically, for example, a coating layer of a curable resin such as a polyurea resin is sprayed onto the second surface 1Fs of the roofing material 1Rf and the plurality of base portions 2Bk by a spraying method or the like, and cured, thereby covering the coating layer. 2Cv can be formed. Since the polyurea-based resin paint has excellent quick-drying properties, the polyurea-based resin coating layer 2Cv can be easily formed. In this way, the coating layer 2Cv positioned along the shape of the applied surface can be formed. The coating layer 2Cv exhibits, for example, high toughness, high tear strength, high tensile strength, high extensibility, and high extensibility. In addition, the covering layer 2Cv is in a state of being firmly bonded to, for example, the second surface 1Fs of the roofing material 1Rf and the surfaces of the plurality of base portions 2Bk.

  Here, for example, in addition to the weight of the plurality of base portions 2Bk, the covering layer Cv2 positioned in a state of covering each base portion 2Bk is a portion of the second surface 1Fs around each base portion 2Bk. Bonded to P1p. For this reason, for example, even if a negative pressure load is applied to the solar cell module 2Mo in a direction away from the roofing material 1Rf due to wind pressure or the like, an earthquake load (also referred to as an earthquake load) is applied in the vertical and horizontal directions. The base portion 2Bk is difficult to move on the second surface 1Fs. At this time, for example, even if the negative pressure load and the seismic load applied to the solar cell module 2Mo try to move the base portion 2Bk, the covering layer 2Cv is formed at the boundary portion between the outer peripheral portion of each base portion 2Bk and the second surface 1Fs. Negative pressure loads and seismic loads can be distributed on the part Plp along. Furthermore, the covering layer Cv2 is bonded to a portion P1m in a wider range than the portion P1p around the base portion 2Bk in the second surface 1Fs of the roofing material 1Rf. For this reason, for example, even if the negative pressure load and the earthquake load applied to the solar cell module 2Mo try to move the base portion 2Bk, the covering layer 2Cv is a portion P1m over a wide range on the roofing material 1Rf, and the negative pressure load and Seismic load can be distributed. Therefore, for example, the solar cell device 2 can be firmly fixed to the second surface 1Fs of the roofing material 1Rf without excessively increasing the weight of the base portion 2Bk due to the presence of the covering layer 2Cv.

  Further, for example, even when a negative pressure load and an earthquake load are applied to the solar cell module 2Mo, the stress is not easily concentrated locally in the coating layer 2Cv. For this reason, damage to the covering layer 2Cv and damage to the portion of the roofing material 1Rf where the covering layer 2Cv is bonded are unlikely to occur. In particular, for example, even when the roofing material 1Rf is formed of ALC having a lower strength than that of general concrete, the ALC roofing material 1Rf is less likely to be damaged due to the dispersion of the load.

  If the solar cell device 2 having the coating layer 2Cv as described above is employed, for example, the application of a finishing agent for improving the waterproofness of the roofing material 1Rf and the fixing of the plurality of base portions 2Bk to the second surface 1Fs are performed. Can be carried out simultaneously in one step. Therefore, for example, the workability when installing the solar cell device 2 on the roof 1 can be improved by reducing the number of man-hours.

  By the way, the solar cell apparatus 2 which concerns on 10th Embodiment can be installed on the roof 1 by the following processes, for example. For example, first, as shown in FIG. 33 (b), a plurality of base portions 2Bk are placed on the roofing material 1Rf which is a base of a flat roof as an installation target portion as shown in FIG. 33 (a). To do. Next, as shown in FIG. 33 (c), the anchor metal fitting An1 is attached to each base portion 2Bk. Here, for example, a part of the anchor metal fitting An1 may be embedded in the base portion 2Bk in advance. Next, as shown in FIG. 33 (d), for example, using a spraying method, a fast-drying paint is sprayed and cured on the second surface 1Fs of the roofing material 1Rf and the plurality of base portions 2Bk. Here, for example, a paint of a curable resin such as a polyurea resin is employed as the quick-drying paint. Accordingly, the plurality of base portions 2Bk and the portion P1m between the plurality of base portions 2Bk and the portion Plp around the plurality of base portions 2Bk in the second surface 1Fs of the roofing material 1Rf are continuously covered. The covering layer 2 </ b> Cv that is positioned in the state can be formed. At this time, the upper part of the anchor metal fitting An1 protrudes from the coating layer 2Cv. Next, as shown in FIG. 33 (e), the pedestal portion 2Mot is attached to the plurality of anchor brackets An1 fixed to the plurality of base portions 2Bk. In other words, the gantry part 2Mot is fixed to the plurality of base parts 2Bk. And as shown in Drawing 32 (a) and Drawing 32 (b), a plurality of solar cell modules 2Mo are attached to stand part 2Mot. Thereby, the solar cell apparatus 2 can be completed. According to the above process, for example, using a spraying method or the like, the application of the finishing agent for improving the waterproofness of the roofing material 1Rf and the fixing of the plurality of base portions 2Bk to the second surface 1Fs are performed. It can be carried out simultaneously in the process. Therefore, for example, workability when manufacturing the solar cell device 2 on the roof 1 can be improved by reducing the number of man-hours.

  Now, for example, as shown in FIG. 34 (a), each base portion 2Bk has a skirt portion to which a fastening portion in a state where the base portion 2Bk and the roofing material 1Rf are fastened is attached. You may do it. In the example of FIG. 34A, each base portion 2Bk has a metal fitting 2Bt that is fixed to the surface of the base portion 2Bk and is located on the second surface 1Fs. The material 1Rf is in a state of being fastened by screws 2Sw as fastening portions. For example, the screw 2Sw is positioned in a state of being screwed in from the second surface 1Fs side of the roofing material 1Rf to the middle in the thickness direction. If such a structure is employ | adopted, the fixed intensity | strength by which the solar cell apparatus 2 is fixed with respect to the roof 1 as an installation object part can be raised further, for example. Further, for example, if the metal fitting 2Bt is fixed to the roofing material 1Rf by a fastening part such as a screw 2Sw before the coating layer 2Cv is formed, the screw 2Sw that fastens the roofing material 1Rf and the base part 2Bk or the like. The fastening portion may be covered with the coating layer 2Cv. Thereby, for example, waterproofness of the roofing material 1Rf can be ensured. Here, for example, the base portion 2Bk may have a flange portion positioned in a state where the fastening portion is inserted in the lower outer peripheral portion instead of the metal fitting 2Bt.

  Here, for example, as shown in FIG. 34 (b), for connecting pins or the like in a state where the bottom surface of each base portion 2Bk on the second surface 1Fs side and the roofing material 1Rf are connected. The member 2Pn may be located. For example, a metal screw or nail such as iron or stainless steel is applied to the connecting member 2Pn. If such a configuration is adopted, for example, the fixing strength in the horizontal direction of the solar cell device 2 with respect to the second surface 1Fs of the roofing material 1Rf can be improved. Such a configuration can be realized by the following process, for example. For example, the connecting member 2Pn is fixed to the portion on the second surface 1Fs side of the roofing material 1Rf in an upright state, and a hole through which the connecting member 2Pn can be inserted is provided on the bottom surface side of the base portion 2Bk. . Then, the base portion 2Bk is placed on the roofing material 1Rf so that the connecting member 2Pn fits in the hole. In addition, for example, the connecting member 2Pn is fixed in a state in which the connecting member 2Pn is erected on the bottom side portion of the base portion 2Bk, and the connecting member 2Pn can be inserted into the second surface 1Fs side portion of the roof material 1Rf. May be provided. Also in this case, the base portion 2Bk may be placed on the roofing material 1Rf so that the connecting member 2Pn fits in the hole. Here, for example, by using a concrete anchor or the like, it is possible to fix the connecting member in a standing state with respect to the portion on the second surface 1Fs side of the roofing material 1Rf or the portion on the bottom surface side of the base portion 2Bk. it can.

  Here, for example, as shown in FIG. 34C, the bottom surface and the second surface 1Fs of the base portion 2Bk are provided between the bottom surface of each base portion 2Bk and the second surface 1Fs of the roofing material 1Rf. There may be a second adhesive layer 2As located in a state where the two are adhered. Thereby, for example, the bottom surface of the base portion 2Bk can be bonded to the second surface 1Fs by the second adhesive layer 2As. As a result, for example, the fixing strength for fixing the solar cell device 2 to the roof 1 as the installation target portion can be further increased. For the second adhesive layer 2As, for example, a sheet (also referred to as a double-sided adhesive sheet) having adhesive force on both sides using a silicone resin or a butyl resin is applied. For example, such a second adhesive layer 2As is obtained by pasting a double-sided adhesive sheet in advance on a portion of the second surface 1Fs of the roofing material 1Rf where the base portion 2Bk is disposed, and mounting the base on the double-sided adhesive sheet. It can be formed by placing the part 2Bk. Here, for example, a liquid adhesive is applied to a portion of the second surface 1Fs of the roofing material 1Rf where the base portion 2Bk is disposed instead of the double-sided adhesive sheet, and the base portion is placed on the adhesive. 2Bk may be placed. Here, for example, the second adhesive layer 2As can be protected from ultraviolet rays by the presence of the coating layer 2Cv. Thereby, for example, the second adhesive layer 2As is not easily deteriorated and can maintain the adhesive force over a long period of time. In addition, for example, even if a fine crack or the like occurs in the coating layer 2Cv due to aging or the like, and a path for water immersion toward the base portion 2Bk and the second surface 1Fs is formed, due to the presence of the second adhesive layer 2As, Water hardly collects between the second surface 1Fs and the base portion 2Bk. Thereby, for example, the roof 1 is hardly deteriorated.

  Here, for example, if at least the side surface of the base portion 2Bk has an inclined surface that forms an obtuse angle with respect to the second surface 1Fs of the roofing material 1Rf, the base portion is caused by the wind pressure of the wind blowing along the second surface 1Fs. The load applied to the side surface of 2Bk can be reduced. Here, for example, the inclined surface may be located in a part of the outer peripheral portion of the side surface of the base portion 2Bk, or may be positioned over the entire circumference of the outer peripheral portion of the side surface of the base portion 2Bk. Good. If such a configuration is adopted, for example, the fixing strength for fixing the solar cell device 2 to the roof 1 as the installation target portion can be further increased.

  Here, for example, the side surface of the base portion 2Bk is positioned at the lower portion so that the first region located at the upper portion and the second surface 1Fs have a larger angle than the first region and are closer to the second surface 1Fs. And a second region. In this case, for example, when the coating layer 2Cv is formed by a spraying method or the like, the formed coating layer 2Cv is unlikely to be thin on the corner portion formed by the side surface of the base portion 2Bk and the second surface 1Fs. Therefore, for example, the covering layer 2Cv can be formed with a more uniform thickness by a spraying method or the like including the boundary portion between the second region of the base portion 2Bk and the second surface 1Fs. Here, for example, if the covering layer 2Cv has a uniform thickness and gently and continuously covers the second surface 1Fs and the base portion 2Bk, even if a load is applied to the base portion 2Bk, the base portion 2Bk On the corner portion formed by the side surface and the second surface 1Fs, stress concentration hardly occurs in the coating layer 2Cv. In other words, the durability of the coating layer 2Cv can be improved by sufficiently securing the strength of the coating layer 2Cv on the corner formed by the side surface of the base portion 2Bk and the second surface 1Fs. From another viewpoint, for example, even when a horizontal seismic load along the second surface 1Fs is applied to the solar cell device 2, the covering is performed on the corner portion formed by the side surface of the base portion 2Bk and the second surface 1Fs. Of the stress applied to the layer 2Cv, the shear force component decreases and the tensile force component increases. That is, the shear force can be converted into a tensile force. Thereby, damage, such as a crack, does not easily occur in the coating layer 2Cv, and the coating layer 2Cv does not easily peel from the surfaces of the second surface 1Fs and the base portion 2Bk. Therefore, for example, the fixing strength at which the solar cell device 2 is fixed to the roof 1 as the installation target portion can be further increased.

  Here, for example, a configuration may be adopted in which the base portion 2Bk is positioned so as to be fitted into a concave portion present on the second surface 1Fs of the roofing material 1Rf. Here, for example, a configuration in which the base portion 2Bk has a convex portion positioned so as to be fitted in a concave portion existing on the second surface 1Fs of the roofing material 1Rf is conceivable. If such a configuration is adopted, for example, even if an earthquake load is applied to the base portion 2Bk in the horizontal direction along the second surface 1Fs, the base portion 2Bk is difficult to move on the second surface 1Fs. Thereby, the fixed intensity | strength by which the solar cell apparatus 2 is fixed with respect to the roof 1 as an installation object part can be raised further, for example.

  Here, for example, the surface of the base portion 2Bk and the region extending from the surface of the base portion 2Bk to the second surface 1Fs of the roofing material 1Rf are covered with the covering layer 2Cv. Fibers may be located. If such a configuration is adopted, for example, the coating layer 2Cv becomes a fiber reinforced plastic (FRP), and the strength of the coating layer 2Cv can be further increased.

<3. Other>
In each of the above embodiments, as a material constituting the coating layer 2Cv, for example, cement mortar prepared by blending a white resin with a synthetic resin emulsion such as an acrylic polymer and an aggregate such as silica sand is adopted. May be. Here, as the aggregate, for example, one or more kinds of fibers of ceramic fiber, glass fiber, nylon fiber, and vinylon fiber may be employed instead of silica sand.

  In the first embodiment to the ninth embodiment, for example, the roofing material 1Rf as the base is not limited to the corrugated plate, but at least a part of the plate-like member includes one or more convex portions 1Pr and one. The above concave portion 1Rs may be present. Further, for example, the roofing material 1Rf as the base may be one in which one or more convex portions 1Pr are present in at least a part of a plate-like or flat plate-like member.

  In the first to ninth embodiments, for example, other members such as field boards may be employed as the base portion 1Bm instead of the girders.

  In the first to ninth embodiments, for example, an outer wall may be employed as the installation target portion instead of the roof 1. In this case, for example, a form in which the outer wall portion is employed as the base body is conceivable. At this time, the + Z direction and the −Z direction can be, for example, directions along the horizontal direction. If such a structure is employ | adopted, even if the fixing tool 2Fx for installing the solar cell module 2Mo on the outer wall part as a base | substrate is attached, the waterproofness of an outer wall part can be improved.

  In each said embodiment, the solar cell apparatus 2 may have one solar cell module 2Mo, for example. In other words, for example, the solar cell device 2 may include one or more solar cell modules 2Mo.

  In the first to ninth embodiments, for example, instead of being positioned so as to be covered by the covering layer 2Cv so that all of the protrusions Pj1 of the first fastening portion 1Mt are buried, The projecting portion Pj1 of the one fastening portion 1Mt may be covered so that at least a portion on the second surface 1Fs side is filled. Also in this case, for example, the gap between the first fastening portion 1Mt and the roofing material 1Rf is covered with the covering layer 2Cv so as to be filled from the second surface 1Fs side. Thereby, for example, the inundation of the downward direction of the roof 1 through between the 1st fastening part 1Mt and the roofing material 1Rf can be reduced. As a result, the waterproofness of the roof 1 can be improved.

  In the first to ninth embodiments, for example, the base Bp2 intersects the second direction (−Y direction) instead of the first plate-like portion Pl2 or together with the first plate-like portion Pl2. In FIG. 5, the part which is located along the convex-shaped part 1Pr of the roofing material 1Rf may be included. For example, a portion having a net-like shape or a block-like shape is applied to the non-plate-like portion.

  In the ninth embodiment, for example, a fixing tool 2Fx in which a first fixing member 2Fx1 and a second fixing member 2Fx2 are integrally formed may be employed. The fixing tool 2Fx having such a structure can be manufactured, for example, by forming a cutout portion SL1 or the like by cutting or the like on one manufactured by forging aluminum.

  It goes without saying that all or a part of each of the above embodiments and various modifications can be appropriately combined within a consistent range.

DESCRIPTION OF SYMBOLS 1 Roof 1Bm Ground part 1Bs 1st surface 1Fs 2nd surface 1Ha, 2Ha, H1a, H2a, H2b, H2c, H2o Hole 1Mt 1st fastening part 1Pr Convex part 1Pra 1st convex part 1Prb 2nd convex part 1Prc 3rd convex part 1Rf Roof material 1Rs Concave part 1Rsa 1st concave part 1Rsb 2nd concave part 1Sp Supported part 2 Solar cell device 2Cv Covering layer 2Fx Fixing tool 2Fx1 First fixing member 2Fx2 Second fixing member 2Mo Solar cell Module AL2 First adhesive layer Bl1 bolt (first member)
Bp1 base part Bp2 base part Cn1 connected part Cn1a first connected part Cn1b second connected part Cn2 connecting part Cn2a first connecting part Cn2b second connecting part Ed1 first end part Ed2 second end part Fk1 locking part H2d through Hole H2da 1st through-hole H2db 2nd through-hole H2dc 3rd through-hole Jt2 connecting part LY1 1st layer LY2 2nd layer LY3 3rd layer MS0 Net-like body Ml1 Male thread Nt1 1st nut (2nd member) )
Nt2 2nd nut (stopper)
Nt2A, Nt2B Stopper Pg1 Packing Pj1 Protruding part Pk1 Top part Pl1 Second plate part Pl2 First plate part Sp2 Support part SL1 Notch part St2 Standing part St2a First standing part St2b Second standing part Vp1 Virtual surface Wp1 protruding portion Wp1a first protruding portion Wp1b second protruding portion Wp1c third protruding portion

Claims (14)

One or more solar cell modules;
A fixing tool located above the installation target part;
A coating layer containing a resin positioned in a state of covering the installation target part,
The installation target part has a base part, a base body located on the base part, and a fastening part located in a state where the base body is fixed to the base part,
The base includes a first surface supported by the base portion, and a second surface positioned in a state facing the opposite side of the first surface, and the first surface to the first surface One or more convex portions that protrude in a first direction toward the second surface and are positioned along a second direction orthogonal to the first direction,
The fastening portion is located in a state of penetrating the base body, and has a projecting portion located in a state of projecting in the first direction from the second surface,
The fixing tool has a base and one or more standing parts,
The base includes a portion located along the convex portion in a direction intersecting the second direction;
The standing portion is positioned in a state of supporting the connecting portion positioned in a state of being connected to the base and the one or more solar cell modules directly or indirectly through another member. And a supporting part that has
The covering layer covers the second surface of the base body, the base, the portion on the second surface side of the protruding portion, and at least the connection portion of the standing portion. And is located in a state of being adhered to the second surface,
The said support part of the said standing part is a solar cell apparatus located in the state which protruded in the said 1st direction from the said coating layer. The solar cell device according to claim 1,
The said base part is a solar cell apparatus containing the 1st plate-shaped part located along the said convex-shaped part in the direction which cross | intersects the said 2nd direction. The solar cell device according to claim 1 or 2, wherein
The one or more convex portions are positioned in a state of being aligned in a third direction orthogonal to both the first direction and the second direction, and a first convex portion, a second convex portion, and A third convex portion,
The base has a first concave portion between the first convex portion and the second convex portion, and a second concave portion between the second convex portion and the third convex portion. Have
The base includes a portion located along the second convex portion in a direction intersecting the second direction;
The connection portion is located on a portion of the base body that is closer to at least one of the first concave portion and the second concave portion than the top of the second convex portion,
The 1st thickness of the part located in the state which has covered the said standing part of the said coating layer is 2nd thickness of the part located on the said top part of the said coating layer. Large, solar cell device. The solar cell device according to any one of claims 1 to 3, wherein
The protruding portion has at least one of a convex portion and a concave portion along the circumferential direction,
The base portion has a hole portion that is positioned in a state in which the protruding portion passes therethrough,
The fixing tool further includes a stopper positioned in a state of being engaged with at least one of the convex portion and the concave portion of the protruding portion,
The stopper and the base are positioned in a state of sandwiching the base,
The said coating layer is a solar cell apparatus located in the state coat | covered so that the said stopper may be embedded. The solar cell device according to claim 4,
The fastening portion includes a portion on the first end side having a locking portion positioned in a state of being locked to the base portion, and a portion on the second end side having a male screw portion in the protruding portion. And a second member having a female screw portion positioned in a state of being combined with the male screw portion,
The second member is positioned in a state where the base is pressed against the base portion,
In a state where the stopper is engaged with at least one of the convex portion and the concave portion that are located on the second end portion side of the second member of the first member. A solar cell device is located. The solar cell device according to any one of claims 1 to 3, wherein
The fastening portion includes a first end portion portion positioned in a state of being fixed to the base portion, and a second end portion portion having a male screw portion in the protruding portion. A member, and a second member having a female screw portion positioned in a state of being combined with the male screw portion,
The fixing tool is a first fixing member located on the second surface, and a second fixing located on the first fixing member in a state of being fixed to the first fixing member. And a member for
The first fixing member is positioned in a state of projecting in the first direction from the base portion that is located along the convex portion in a direction intersecting the second direction. Including one or more ledges,
The second fixing member has the base portion and the one or more standing portions,
The base portion includes a notch portion positioned in a state where the protruding portion is inserted between the second member and the second surface, and between the base portion and the second surface. Having a portion located between,
The one or more protruding portions have a portion to which the second fixing member is fixed,
The said coating layer is a solar cell apparatus located in the state which has coat | covered so that the said base part and the part at least the said base part side of the said 1 or more protrusion part may be filled. The solar cell device according to claim 6,
The said base part is a solar cell apparatus which has a through-hole part located in the state which the said protrusion part has penetrated. The solar cell device according to claim 6 or 7,
The one or more ledges include a first ledge and a second ledge,
The one or more standing parts include a first standing part and a second standing part,
The fastening portion is located in a state of penetrating the top of the convex portion of the base body,
The protruding portion is located in a state protruding from the top portion in the first direction,
The first protruding portion and the second protruding portion are positioned symmetrically with respect to a virtual plane passing through the top portion and the protruding portion and extending along both the first direction and the second direction. And
The first standing part and the second standing part are located symmetrically with respect to the virtual plane,
The first standing portion is located in a state of being fixed to the first protruding portion,
The solar cell device, which is positioned in a state where the second standing portion is fixed to the second protruding portion. The solar cell device according to claim 8, wherein
The foundation includes a second plate-like portion located along the convex portion in a direction intersecting the second direction;
The second plate-like portion includes a connected portion to which the protruding portion is connected, and a portion located along the convex portion from the connected portion in a direction away from the top portion. Battery device. The solar cell device according to any one of claims 6 to 9, wherein
The one or more protruding portions are located in a state of protruding in the first direction from a portion along the convex portion in a direction intersecting the second direction of the base portion. A solar cell device including a portion. The solar cell device according to claim 4 or 5, wherein
The one or more standing parts include a first standing part and a second standing part,
The fastening portion is located in a state of penetrating the top of the convex portion of the base body,
The protruding portion is located in a state protruding from the top portion in the first direction,
The first standing portion and the second standing portion are symmetrically positioned with respect to an imaginary plane passing through the top portion and the protruding portion and along both the first direction and the second direction. A solar cell device. The solar cell device according to any one of claims 1 to 11, wherein
The base portion includes a girder,
The base has a supported portion in which the first surface is supported by the girder,
The said connection part is a solar cell apparatus located in the state connected to the part located along the said 2nd surface of the said supported part of the said base. The solar cell device according to any one of claims 1 to 12,
A reticulate body positioned in a state of covering the base and a region extending from the base to the second surface of the base body,
The said coating layer is a solar cell apparatus located in the state coat | covered so that the said mesh body may be filled with the said base. The solar cell device according to any one of claims 1 to 5 and claim 11 to claim 13,
A solar cell device further comprising an adhesive layer positioned in a state where the base is adhered to the second surface between the second surface of the base and the base.

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