Solar panel mounting structures and solar power generation roofs

Abstract

To provide a solar panel stand and a solar power generation roof capable of dealing with the thickness of a solar panel, suppressing a decrease in strength, and shortening a development period.SOLUTION: A solar panel stand 3 includes a vertical beam 31 that is formed to extend in an inclination direction of a roof and fixed to the roof; a horizontal beam 32 formed to extend in a direction perpendicular to the inclination direction and connected to the upper portion of the vertical beam 31 to support a solar panel 4 from below; and a spacer member 5 disposed at least on a ridge side X2 of the horizontal beam 32 and disposed between the horizontal beam 32 and the solar panel 4.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a solar panel support and a solar power generation roof.

Background Art

[0002] Conventionally, a solar power generation roof including a solar panel support for supporting a solar power generation panel (solar panel) is known. In a solar power generation roof, when using solar power generation panels with different thicknesses, an existing solar panel support cannot cope, and a profile such as a horizontal crossbar used for a new solar panel support may be changed to a new profile corresponding to the thickness of the solar power generation panel.

[0003] Also, in a solar panel support, when the thickness of the solar power generation panel is different, there is a technique that can cope with the thickness of the solar power generation panel by providing a pressing portion capable of adjusting the pressing position in the thickness direction of the solar power generation panel (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, after forming a profile such as a horizontal crossbar used for a solar panel support, additional processing such as hole processing may be performed on the formed profile in a factory at the production site. In such a case, when the shape of the new profile is different from the shape of the existing profile, there is a need to change the processing equipment for additional processing such as hole processing at the production site. Therefore, the development period of the solar panel support becomes long to change the processing equipment at the production site, and it takes time until sales start.

[0006] Furthermore, if a new retaining part that can adjust the position of the solar panel in the thickness direction is to be provided, as in the technology described in Patent Document 1, it becomes necessary to create new components, which prolongs the development period. Moreover, if a retaining part that can adjust the position of the solar panel in the thickness direction is to be provided, the position of the retaining part will be moved, which raises concerns such as a decrease in the strength that supports the solar power generation panel.

[0007] The purpose of this disclosure is to provide a solar panel mounting system and a solar power generation roof that can accommodate the thickness of solar panels, suppress a decrease in strength, and shorten the development period. [Means for solving the problem]

[0008] This disclosure relates to a solar panel mounting frame comprising: vertical battens formed extending in the direction of the roof slope and fixed to the roof; horizontal battens formed extending in a direction perpendicular to the direction of the slope and connected to the upper part of the vertical battens, supporting the solar panels from below; and spacer members positioned at least on the ridge side of the horizontal battens and positioned between the horizontal battens and the solar panels. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing a solar power generation roof according to one embodiment of this disclosure. [Figure 2] This is a plan view of a solar power generation roof according to one embodiment of the present disclosure. [Figure 3] This is a plan view of the solar panel mounting structure according to this embodiment. [Figure 4] This is a cross-sectional view along line AA in Figure 2. [Figure 5] Figure 2 is a cross-sectional view along line BB. [Figure 6] This is a perspective view showing the spacer members positioned on the horizontal bars. [Figure 7] This is a perspective view showing the positional relationship between the spacer member, the drainage holes in the solar power generation panel, and the drainage holes in the horizontal support bars. [Figure 8]This is a schematic diagram showing the positional relationship between the spacer member and the drainage holes in the solar power generation panel and the horizontal support bars. [Figure 9] This diagram shows the state in which solar power generation panels are attached to horizontal bars on which spacer members are placed. [Figure 10] Figure 2 is a cross-sectional view along the CC line. [Figure 11] Figure 2 is a cross-sectional view along the DD line. [Modes for carrying out the invention]

[0010] The configuration of a solar power generation roof 1 according to one embodiment of this disclosure will be described in detail below with reference to the drawings.

[0011] The solar power generation roof 1 is formed by integrally integrating the roof of the building 10 with the solar power generation panels 4. The solar power generation roof 1 has roof surfaces that slope outwards on both sides from the ridge, and substantially the entire surface of the roof on the sunny side is integrally formed with the solar power generation panels. The configuration of the roof surface 11 of the roof on the sunny side of the solar power generation roof 1 will be described in detail below with reference to Figures 1 to 4. In this embodiment, the eaves side is referred to as the eaves side X1, and the ridge side is referred to as the ridge side X2.

[0012] As shown in Figures 1 to 4, the solar power generation roof 1 comprises the roof 2 of the building 10 (see Figure 4), a solar panel mounting frame 3, solar power generation panels 4 (solar panels), and decorative material 6 (see Figure 1).

[0013] As shown in Figure 4, roof 2 comprises a roof decking board 21, a waterproof sheet 22, and multiple slates 23 (roofing material).

[0014] The roof sheathing 21 is laid on top of the rafters 20, which are the framework of the roof 2 of the building 10. The roof sheathing 21 is laid over the entire surface of the solar power generation roof 1. As the roof sheathing 21, board material such as plywood is used.

[0015] The waterproof sheet 22 is disposed on the floor board 21. The waterproof sheet 22 enhances the waterproof property of the solar power generation roof 1. As the waterproof sheet 22, waterproof materials such as asphalt roofing obtained by impregnating cardboard with asphalt are used.

[0016] The slate 23 is formed of a flat plate material. A plurality of slates 23 are overlapped on the waterproof sheet 22 with a predetermined overlap width and continuously arranged side by side in the inclined direction. A plurality of slates 23 are continuously arranged such that the end side of the eaves side X1 (lower side) of another slate 23 overlaps the upper surface of the end side of the ridge side X2 (upper side) of the slate 23.

[0017] The solar panel mount 3 is used to fix the solar power generation panel 4 to the roof 2. As shown in FIG. 4, the solar panel mount 3 is screwed and fixed on the above-mentioned plurality of slates 23 by a plurality of support structures 7. Further, the solar panel mount 3 fixedly supports the solar power generation panel 4. As shown in FIGS. 1 to 4, the solar panel mount 3 is constituted by a plurality of vertical bars 31 and a plurality of horizontal bars 32 being framed in a lattice shape. The vertical bars 31 and the horizontal bars 32 are formed by extrusion molding using a metal such as an aluminum material, for example.

[0018] As shown in FIG. 3, the vertical bar 31 is formed to extend in the inclined direction of the roof surface 11 of the roof and is provided continuously from the ridge to the eaves tip. A plurality of vertical bars 31 are formed to extend along the inclined direction of the roof surface 11 of the roof, and a plurality of them are arranged at regular intervals in the direction orthogonal to the inclined direction. As shown in FIG. 4, the plurality of vertical bars 31 are fixed to the plurality of slates 23 by a plurality of support structures 7. The support structure 7 includes a pair of support members 71 disposed on both side portions in the width direction of the vertical bar 31, and a fixing member 72 such as a screw for fixing the pair of support members 71 to the vertical bar 31. The lower ends of the pair of support members 71 are screwed and fixed to the slate 23, the floor board 21, and the purlin 20, and the side surfaces are fixed to the side portions at the ends in the width direction of the vertical bar 31 by the fixing member 72.

[0019] As shown in Figure 3, multiple horizontal rails 32 are provided to bridge adjacent vertical rails 31. The horizontal rails 32 are formed extending in a direction perpendicular to the slope direction of the roof surface 11 and are connected to the upper part of the vertical rails 31 by screws via vertical-horizontal conductive fittings 323 and eaves-side fixing fittings 324. The horizontal rails 32 support the solar power generation panels 4 from below at the upper and lower ends in the direction of slope. Furthermore, as shown in Figure 3, the horizontal rails 32 are constructed by connecting multiple horizontal rail components 321 in the horizontal direction using connecting members 322.

[0020] As shown in Figures 3 and 4, the multiple horizontal bars 32 include an eave-side horizontal bar 33 positioned at the eave-side end X1 of the solar power generation panel 4 closest to the eaves, a ridge-side horizontal bar 35 positioned at the ridge-side end X2 of the solar power generation panel 4 closest to the ridge, and one or more intermediate horizontal bars 34 positioned directly below the horizontal connecting section 42 (see Figures 1 and 2), which is the connecting section of the lateral sides of adjacent solar power generation panels 4, as will be described later. Details of the horizontal bars 32 (eave-side horizontal bar 33, intermediate horizontal bar 34, ridge-side horizontal bar 35) will be described later.

[0021] Multiple solar power generation panels 4 are fixedly supported by a solar panel mounting frame 3. As shown in Figures 1 and 2, multiple solar power generation panels 4 are arranged parallel to each other in the direction of the slope of the roof surface 11 of the solar power generation roof 1, and multiple panels are arranged parallel to each other in a direction perpendicular to the direction of the slope.

[0022] As shown in Figures 1 and 2, the vertical edges of the solar power generation panel 4 that are aligned with the slope direction of the roof surface 11 form a vertically extending joint 41 between them and the vertical edges of adjacent solar power generation panels 4. In addition, the horizontal edges of the solar power generation panel 4 that are aligned with the direction perpendicular to the slope direction of the roof surface 11 are connected to the horizontal edges of adjacent solar power generation panels 4 with the horizontal bars 32 that constitute the solar panel mounting frame 3 in between, thereby forming a horizontal connection portion 42.

[0023] As shown in Figure 1, the decorative material 6 comprises an eave-side frame member 61, a ridge-side frame member 62, and a pair of gable-side frame members 63, 63. These eave-side frame member 61, ridge-side frame member 62, and the pair of gable-side frame members 63, 63 constitute a surrounding frame that encloses the solar power generation panel 4, which will be described later.

[0024] Details of the horizontal rail 32 will now be described. As mentioned above, as shown in Figures 3 and 4, the plurality of horizontal rails 32 include an eaves-side horizontal rail 33, one or more intermediate horizontal rails 34, and a ridge-side horizontal rail 35.

[0025] The eaves-side horizontal rail 33 is the horizontal rail X1 closest to the eaves among the multiple horizontal rails 32. The ridge-side horizontal rail 35 is the horizontal rail X2 closest to the ridge among the multiple horizontal rails 32. The intermediate horizontal rail 34 is a horizontal rail among the multiple horizontal rails 32 that is positioned between the eaves-side horizontal rail 33 and the ridge-side horizontal rail 35 in the direction of the slope of the roof surface 11. The intermediate horizontal rail 34 and the ridge-side horizontal rail 35 are constructed using common members and are formed to the same shape.

[0026] First, the configuration of the eaves-side crossbar 33 will be described. As shown in Figure 5, the eaves-side crossbar 33 has a main body hollow portion 331 formed in the shape of a hollow frame, an eaves-side cover portion 335 formed on the eaves side X1, a panel retaining piece 336 that protrudes from the upper end of the ridge side X2 of the main body hollow portion 331 to the ridge side X2, and a plurality of grounding fittings 337.

[0027] As shown in Figures 3 and 5, a connecting member 322 is positioned inside the hollow section 331 of the main body between adjacent horizontal rail components 321 (see Figure 3) that constitute the eaves-side horizontal rail 33. The connecting member 322 is screw-fixed to each of the adjacent horizontal rail components 321, connecting the adjacent horizontal rail components 321.

[0028] As shown in Figure 5, the hollow main body portion 331 has an upper component portion 332, a ridge-side projection portion 333 that protrudes from the ridge-side end X2 at the bottom of the upper component portion 332 toward the ridge-side X2, and an eaves-side cover portion 335 formed on the eaves-side X1. The upper surface of the ridge-side projection portion 333 constitutes a horizontal rib ridge-side support portion 334. An earth fitting 337 is screw-fixed to the ridge-side end X2 of the ridge-side projection portion 333.

[0029] As shown in Figures 3 and 5, the eaves-side horizontal rail 33 is connected to the solar power generation panel 4 by a plurality of grounding fittings 337 to provide electrical conductivity. The plurality of grounding fittings 337 are placed only on the ridge side X2 of the eaves-side horizontal rail 33, in the direction of inclination of the roof surface 11, along with the eaves-side X1. As shown in Figure 3, the plurality of grounding fittings 337 are placed at predetermined positions in the direction in which the eaves-side horizontal rail 33 extends, electrically connecting the eaves-side horizontal rail 33 and the solar power generation panel 4.

[0030] As shown in Figure 4, the eaves cover portion 335 has an inclined surface 335a at the end of the eaves side X1 of the eaves horizontal rail 33, which is positioned at the eaves side X1 in the direction of inclination of the roof surface 11, and which slopes downward from the ridge side X2 toward the eaves side X1. The eaves cover portion 335 is positioned at the eaves of the solar power generation roof 1. The eaves cover portion 335 extends in a direction perpendicular to the direction of inclination of the roof surface 11 of the solar power generation roof 1 and covers the eaves, thereby protecting the eaves. This enhances the aesthetic appearance of the eaves.

[0031] As shown in Figure 5, the upper surface of the ridge-side projection 333 constitutes the horizontal rib ridge-side support portion 334 (ridge-side support portion). The horizontal rib ridge-side support portion 334 is formed on the ridge side X2 of the eaves-side horizontal rib 33.

[0032] The horizontal rib ridge support portion 334 has, on its upper surface, an extended surface 334a (horizontal rib support surface) that extends a predetermined length toward the ridge side X2 parallel to the inclination direction of the roof surface 11 from the lower end of the ridge side vertical surface 332a of the upper component portion 332 of the main body hollow portion 331, and an inclined surface 334b ​​(horizontal rib inclined surface) that extends toward the ridge side X2 from the end of the extended surface 334a toward the ridge side X2 with a downward slope relative to the extended surface 334a.

[0033] The extending surface 334a is formed parallel to the lower surface of the solar power generation panel 4. The inclined surface 334b ​​is arranged continuously with the ridge side X2 of the extending surface 334a. The inclined surface 334b ​​slopes downward from the eaves side X1 to the ridge side X2 relative to the lower surface of the solar power generation panel 4. Spacer members 5 are placed on the extending surface 334a and the inclined surface 334b ​​of the horizontal rib ridge side support part 334.

[0034] The spacer member 5 is positioned on the ridge-side support portion 334 formed on the ridge-side X2 of the eaves-side horizontal rail 33. The spacer member 5 is fixed to the upper surface of the ridge-side support portion 334 formed on the ridge-side X2 of the eaves-side horizontal rail 33. For example, the spacer member 5 is adhesively fixed to the upper surface of the ridge-side support portion 334. As the solar power generation panel 4 is positioned on top of the spacer member 5, the spacer member 5 is positioned between the eaves-side horizontal rail 33 and the solar power generation panel 4.

[0035] The spacer member 5 is positioned along the horizontal beam support portion 334 and is formed in a roughly C-shaped frame with an open bottom. The spacer member 5 is formed in a roughly C-shape as if the open bottom frame were flattened in the vertical direction. The spacer member 5 is formed, for example, by extrusion molding of a metal such as aluminum.

[0036] The spacer member 5 has an extending surface arrangement frame portion 51 that is positioned along the extending surface 334a of the horizontal beam ridge-side support portion 334, and an inclined surface arrangement frame portion 52 that is positioned along the inclined surface 334b ​​of the horizontal beam ridge-side support portion 334.

[0037] The extending surface arrangement frame portion 51 has a spacer-side arrangement surface 511. The spacer-side arrangement surface 511 is formed by the upper surface of the extending surface arrangement frame portion 51. The spacer-side arrangement surface 511 is formed parallel to the roof surface 11 and parallel to the extending surface 334a of the horizontal rib ridge-side support portion 334. The spacer-side arrangement surface 511 is formed parallel to the lower surface of the solar power generation panel 4. The lower surface of the eaves-side end X1 of the solar power generation panel 4 is positioned on the spacer-side arrangement surface 511. The spacer member 5, which is positioned on the ridge-side X2 of the eaves-side horizontal rib 33, supports the eaves-side end X1 of the solar power generation panel 4 by positioning the eaves-side end X1 of the solar power generation panel 4 on the spacer-side arrangement surface 511 of the spacer member 5.

[0038] The inclined surface arrangement frame 52 has a spacer-side inclined surface 521. The spacer-side inclined surface 521 is formed by the upper surface of the inclined surface arrangement frame 52. The spacer-side inclined surface 521 is formed continuously with the ridge side X2 of the spacer-side arrangement surface 511. The spacer-side inclined surface 521 is inclined at the same angle as the horizontal bar-side inclined surface.

[0039] The spacer-side inclined surface 521 is formed by an inclined surface that slopes downward from the eaves side X1 towards the ridge side X2 with respect to the slope direction of the roof surface 11. The spacer-side inclined surface 521 is formed parallel to the inclined surface 334b ​​of the horizontal rib ridge side support part 334. The inclination angle of the spacer-side inclined surface 521 is such that when the solar power generation panel 4 is attached to the ridge side X2 of the eaves side horizontal rib 33, even if the solar power generation panel 4 is tilted by a predetermined angle so that the eaves side X1 is downward, the lower corner of the end of the eaves side X1 of the solar power generation panel 4 will hit the spacer-side inclined surface 521 and be guided towards the spacer-side placement surface 511. The spacer-side inclined surface 521 shown in this disclosure is inclined at the same inclination angle as the inclined surface 334b ​​of the horizontal rib ridge side support part 334 of the eaves side horizontal rib 33, but is not limited to this, and may be inclined at a different angle than the inclined surface 334b ​​of the horizontal rib ridge side support part 334 of the eaves side horizontal rib 33. The procedure for attaching the solar power generation panels 4 to the eaves-side horizontal rail 33 on which the spacer members 5 are placed will be described later.

[0040] As shown in Figure 6, the spacer member 5 is formed to extend in a direction perpendicular to the inclination direction of the roof surface 11, which is the direction in which the eaves-side horizontal rail 33 extends. As shown in Figures 6 and 7, the spacer member 5 is positioned in a direction perpendicular to the inclination direction of the roof surface 11, which is the direction in which the eaves-side horizontal rail 33 extends, avoiding the drainage holes 334d formed at both ends in the longitudinal direction of the eaves-side horizontal rail 33, among the multiple drainage holes 334c of the eaves-side horizontal rail 33.

[0041] In this embodiment, as shown in the schematic diagram of Figure 8, a plurality of drainage holes 43 are formed on the lower surface of the solar power generation panel 4 along the peripheral edge. In the schematic diagram of Figure 8, only a portion of the plurality of drainage holes 43 of the solar power generation panel 4 is shown. In addition, a plurality of drainage holes 334c are provided along the longitudinal direction of the eaves side horizontal rail 33 on the extended surface 334a of the horizontal rail ridge support portion 334 of the ridge side projection portion 333 of the hollow portion 331 of the main body of the eaves side horizontal rail 33.

[0042] In this embodiment, the spacer member 5 is formed to be shorter than the length of the eaves-side crossbar 33 so as to avoid the drainage holes 334d formed at both ends of the eaves-side crossbar 33 in the longitudinal direction in which the eaves-side crossbar 33 extends, and the length at both ends in the direction in which the eaves-side crossbar 33 extends is shorter than the length in the direction perpendicular to the inclination direction of the eaves-side crossbar 33. The spacer member 5 is not placed in the area from both ends of the eaves-side crossbar 33 in the longitudinal direction to a predetermined distance inward. In this way, as shown in Figures 6 and 7, the spacer member 5 is positioned to avoid the drainage holes 334d formed at both ends of the eaves-side crossbar 33 in the longitudinal direction.

[0043] Furthermore, in a direction perpendicular to the slope direction of the roof surface 11, the length of the spacer member 5 is formed to be shorter than that of the eaves-side horizontal rail 33. As a result, in the range from both ends in the longitudinal direction of the eaves-side horizontal rail 33 to a predetermined distance inward, the spacer member 5 is not placed between the solar power generation panel 4 and the eaves-side horizontal rail 33. Therefore, a step is formed between the end of the spacer member 5 and the eaves-side horizontal rail 33 in a direction perpendicular to the slope direction of the roof surface 11. This means that even if water flows from the drainage hole 43a at the end of the solar power generation panel 4 in the direction perpendicular to the slope direction, the obstruction of water movement is suppressed because the spacer member 5 is not placed in that range, and water is easily guided to the drainage hole 334d of the eaves-side horizontal rail 33. Thus, drainage performance can be improved.

[0044] As shown in Figure 5, the panel retaining piece 336 is formed to protrude from the upper end of the ridge side X2 of the hollow portion 331 of the main body to the ridge side X2, and holds down the upper end of the eaves side X1 of the solar power generation panel 4 which is positioned on top of the spacer member 5.

[0045] In the eaves-side crossbar 33 of the solar panel mounting frame 3 configured as described above, if the thickness of the solar power generation panel 4 is changed, this can be accommodated by adding a spacer member 5 between the ridge-side support portion 334 of the eaves-side crossbar 33 and the solar power generation panel 4, or by changing the thickness of the spacer member 5. In this case, the height of the grounding fitting 337 is also changed.

[0046] When accommodating the thickness of the solar power generation panel 4, in addition to adding or changing the thickness of the spacer member 5, the height of the earth fitting 337 needs to be changed. However, since the shape of the hollow part of the main body 331 does not need to be changed, the shape of the connecting member 322, which is placed inside the hollow part of the main body 331, does not need to be changed. This has the advantage of reducing the cost required to change the connecting member 322. Furthermore, since the shape of the ridge-side protrusion 333 of the hollow part of the main body 331 does not need to be changed, the processing equipment at the production site for adding drainage holes 334c to the upper surface of the ridge-side support part 334 of the ridge-side protrusion 333 of the intermediate crossbar 34 profile after molding does not need to be changed, and the development period can be shortened.

[0047] Now, referring to Figure 9, the procedure for attaching the solar power generation panel 4 to the eaves-side crossbar 33 on which the spacer member 5 is placed will be explained.

[0048] Conventionally, when the spacer member 5 is not placed on the eaves-side crossbar 33, even if the solar power generation panel 4 is installed with the eaves-side X1 end attached to the eaves-side crossbar 33 at a predetermined angle with the eaves-side X1 facing downwards, the inclined surface 334b ​​is formed on the crossbar ridge-side support portion 334 of the eaves-side crossbar 33. As a result, the lower corner of the end of the eaves-side X1 of the solar power generation panel 4 contacts the inclined surface 334b ​​of the crossbar ridge-side support portion 334 of the eaves-side crossbar 33 and is guided toward the extended surface 334a of the crossbar ridge-side support portion 334. This allows the end of the eaves-side X1 of the solar power generation panel 4 to be smoothly inserted between the crossbar ridge-side support portion 334 of the eaves-side crossbar 33 and the panel retaining piece 336, making it easy to attach the eaves-side X1 of the solar power generation panel 4 to the eaves-side crossbar 33.

[0049] In contrast, in this embodiment, as shown in Figure 9, a spacer member 5 is placed on the eaves-side horizontal rail 33. The spacer member 5 has a spacer-side inclined surface 521 that is parallel to the inclined surface 334b ​​of the horizontal rail ridge-side support portion 334 of the eaves-side horizontal rail 33. Therefore, even when the spacer member 5 is provided, the inclined surface 334b ​​of the horizontal rail ridge-side support portion 334 of the eaves-side horizontal rail 33 and the spacer-side inclined surface 521 of the spacer member 5 are formed at the same inclination angle. Thus, as in the case where the spacer member 5 is not provided, even if the solar power generation panel 4 is installed at a predetermined angle tilted so that the eaves side X1 is downward, as shown in Figure 9, the lower end corner of the end of the eaves-side X1 of the solar power generation panel 4 will first come into contact with the spacer-side inclined surface 521 of the spacer member 5 and be guided toward the extended surface 334a of the horizontal rail ridge-side support portion 334.

[0050] As a result, even when the spacer member 5 is provided on the eaves-side crossbar 33, the eaves-side end X1 of the solar power generation panel 4 can be smoothly inserted between the spacer member 5 and the panel retaining piece 336 of the eaves-side crossbar 33, just as when the spacer member 5 is not provided, allowing the eaves-side X1 of the solar power generation panel 4 to be easily attached to the eaves-side crossbar 33.

[0051] Next, the configuration of the intermediate crossbar 34 will be described. As shown in Figure 10, the intermediate crossbar 34 has a main body hollow portion 341 formed in the shape of a hollow frame, a crossbar eaves-side support portion 348 formed on the eaves side X1, a panel retaining piece 346 protruding from the upper end of the main body hollow portion 341 to the ridge side X2, an earth fitting 347, and a panel retaining member 349. The configuration of the earth fitting 347 is the same as that of the earth fitting 337 of the eaves-side crossbar 33, so its description will be omitted.

[0052] As shown in Figures 3 and 10, a connecting member 322 is positioned inside the hollow section 341 of the main body between adjacent crossbar components 321 (see Figure 3) that constitute the intermediate crossbar 34. The connecting member 322 is screw-fixed to each of the adjacent crossbar components 321, connecting the adjacent crossbar components 321.

[0053] As shown in Figure 10, the hollow section 341 of the main body includes an upper component 342, a ridge-side projection 343 that protrudes from the ridge-side X2 end of the lower part of the upper component 342 toward the ridge-side X2, and an eaves-side projection 341a that protrudes from the eaves-side X1 end of the lower part of the upper component 342 toward the eaves-side X1.

[0054] The upper surface of the ridge-side projection 343 constitutes the horizontal rib ridge-side support portion 344 (ridge-side support portion). The horizontal rib ridge-side support portion 344 is formed on the ridge side X2 of the intermediate horizontal rib 34. A spacer member 5 is placed on the horizontal rib ridge-side support portion 344. Since the horizontal rib ridge-side support portion 344 and the spacer member 5 have the same configuration as the horizontal rib ridge-side support portion 334 and the spacer member 5 of the eaves-side horizontal rib 33, corresponding reference numerals are used and their explanation is omitted.

[0055] The panel retaining piece 346, like the panel retaining piece 336 of the eaves-side horizontal rail 33, is formed to protrude from the upper end of the ridge-side X2 of the hollow portion 341 of the main body toward the ridge-side X2, and holds down the upper end of the eaves-side X1 of the solar power generation panel 4 which is positioned on top of the spacer member 5.

[0056] The horizontal sill-side support portion 348 is formed to protrude from the end of the sill-side X1 at the upper end of the sill-side projection portion 341a of the intermediate horizontal sill 34 toward the sill-side X1. The horizontal sill-side support portion 348 is formed in a U-shape with the lower side open. The horizontal sill-side support portion 348 has an upper projection plate 348a that protrudes upward for a predetermined length from the end of the sill-side X1 at the upper end of the sill-side projection portion 341a of the intermediate horizontal sill 34, a sill-side support surface 348b that extends from the upper end of the upper projection plate 348a toward the sill-side X1

[0057] The eaves-side support surface 348b is formed above the upper surface 341b of the eaves-side projection 341a, with the upper projection plate 348a acting as a step, and is formed on the eaves side X1 of the upper surface 341b of the eaves-side projection 341a. The eaves-side support surface 348b is formed parallel to the lower surface of the solar power generation panel 4. The eaves-side support surface 348b supports the lower surface of the ridge-side end X2 of the solar power generation panel 4. The ridge-side end X2 of the solar power generation panel 4 is positioned on the eaves-side support surface 348b.

[0058] The panel retaining member 349 is attached to the upper part of the intermediate crossbar 34. The panel retaining member 349 is screw-fixed in a state where it is fitted into the upper end of the upper component 342 of the intermediate crossbar 34. The panel retaining member 349 has a panel retaining projection 349a that protrudes toward the eaves side X1. The panel retaining projection 349a presses against the upper end of the ridge side X2 of the solar power generation panel 4, which is positioned on the upper part of the crossbar eaves side support 348.

[0059] In the intermediate crossbar 34 of the solar panel mounting frame 3 configured as described above, if the thickness of the solar power generation panel 4 is changed, this can be accommodated by adding a spacer member 5 between the crossbar ridge-side support portion 344 of the intermediate crossbar 34 and the solar power generation panel 4, or by changing the thickness of the spacer member 5. In this case, the height of the eaves-side support surface 348b of the crossbar eaves-side support portion 348 is changed, as well as the height of the grounding fitting 347.

[0060] When accommodating the thickness of the solar power generation panel 4, in addition to adding or changing the thickness of the spacer member 5, it is necessary to change the height of the eaves-side support surface 348b of the horizontal bar eaves-side support portion 348 and the height of the earth fitting 347. However, since the shape of the main body hollow portion 341 does not need to be changed, the shape of the connecting member 322, which is placed inside the main body hollow portion 341, does not need to be changed. This has the advantage of reducing the cost required to change the connecting member 322. Furthermore, since the shape of the ridge-side projection 343 of the main body hollow portion 341 does not need to be changed, similar to the eaves-side horizontal bar 33, it is not necessary to change the processing equipment at the production site for adding drainage holes 344c (see Figure 8) to the upper surface of the horizontal bar ridge-side support portion 344 of the ridge-side projection 343 of the molded intermediate horizontal bar 34, thus shortening the development period.

[0061] Next, the configuration of the ridge-side horizontal rail 35 will be described. As shown in Figure 11, the ridge-side horizontal rail 35 is constructed in the same shape as the intermediate horizontal rail 34. In this embodiment, from the viewpoint of reducing manufacturing costs, the ridge-side horizontal rail 35 and the intermediate horizontal rail 34 are made of common members.

[0062] In describing the configuration of the ridge-side horizontal rail 35, the description of configurations similar to those of the intermediate horizontal rail 34 may be omitted. The ridge-side horizontal rail 35 has a main body hollow portion 351 formed in the shape of a hollow frame, a horizontal rail eaves-side support portion 358 formed on the eaves side X1, a panel retaining piece 356 protruding from the upper end of the ridge side X2 of the main body hollow portion 351 to the ridge side X2, an earth fitting 357, and a panel retaining member 359. The configuration of the earth fitting 357 is the same as that of the earth fitting 347 of the intermediate horizontal rail 34, so the description is omitted.

[0063] A ridge-side cover member 36 is attached to the ridge-side end X2 of the ridge-side crossbar 35. Inside the hollow section 351 of the main body, as shown in Figures 3 and 11, connecting members 322 are arranged between adjacent crossbar components 321 (see Figure 3) that make up the ridge-side crossbar 35.

[0064] As shown in Figure 11, the hollow section 351 of the main body includes an upper component 352, a ridge-side projection 353 that protrudes from the ridge-side X2 end of the lower part of the upper component 352 toward the ridge-side X2, and an eaves-side projection 351a that protrudes from the eaves-side X1 end of the lower part of the upper component 342 toward the eaves-side X1.

[0065] The upper surface of the ridge-side projection 353 constitutes the horizontal rib ridge-side support portion 354 (ridge-side support portion). The horizontal rib ridge-side support portion 354 is formed on the ridge side X2 of the ridge-side horizontal rib 35. A spacer member 5 is placed on the horizontal rib ridge-side support portion 354. The horizontal rib ridge-side support portion 354 and the spacer member 5 have the same configuration as the horizontal rib ridge-side support portion 334 and spacer member 5 of the eaves-side horizontal rib 33, and also the same configuration as the horizontal rib ridge-side support portion 344 and spacer member 5 of the intermediate horizontal rib 34, so corresponding reference numerals are used and their explanations are omitted.

[0066] In this embodiment, the ridge-side horizontal rail 35 is the horizontal rail closest to the ridge X2 among the multiple horizontal rails 33, and since no solar power generation panels 4 are placed on the ridge-side X2 of the ridge-side horizontal rail 35, it is not necessary to place the spacer member 5 on the horizontal rail ridge-side support portion 354. However, in this embodiment, the ridge-side horizontal rail 35 and the intermediate horizontal rail 34 are configured as common components, and combinations of the ridge-side horizontal rail 35 and the spacer member 5, and combinations of the intermediate horizontal rail 34 and the spacer member 5 are prepared in advance and configured as common parts. The reason for this is that by configuring the ridge-side horizontal rail 35 and the intermediate horizontal rail 34 as common parts, mistakes can be eliminated at the construction site and the ridge-side horizontal rail 35 and the intermediate horizontal rail 34 can be handled without distinction.

[0067] As shown in Figure 10, the ridge-side cover member 36 is positioned on the ridge X2 closest to the ridge of the solar power generation roof 1. The ridge-side cover member 36 extends in the direction of the slope of the roof surface 11, then slopes downward as it approaches the ridge X2 of the roof surface, extending for a predetermined length. From the end that has extended for the predetermined length, it extends in a direction perpendicular to the direction of the slope of the solar power generation roof 1 to cover the ridge and protect it. This enhances the aesthetic appearance of the ridge. The ridge-side cover member 36 is fixed to the ridge-side horizontal rail 35 closest to the ridge X2 while being locked to the panel retaining piece 356.

[0068] The horizontal bar eaves-side support portion 358 and the panel retaining member 359 have the same configuration as the horizontal bar eaves-side support portion 348 and the panel retaining member 349 of the intermediate horizontal bar 34, so they are given corresponding reference numerals and their explanation is omitted.

[0069] The panel retaining piece 356 has a similar shape to the panel retaining piece 346 of the intermediate horizontal rail 34, but it retains a different object. While the panel retaining piece 346 of the intermediate horizontal rail 34 retains the upper end of the eaves side X1 of the solar power generation panel 4, the panel retaining piece 356 of the ridge side horizontal rail 35 retains the upper end of the eaves side X1 of the ridge side cover member 36.

[0070] The solar panel mounting system 3 of this embodiment, as described above, provides the following effects.

[0071] The solar panel mounting frame 3 of this embodiment includes vertical battens 31 that extend in the direction of the roof's slope and are fixed to the roof, horizontal battens 32 (eave-side horizontal battens 33, intermediate horizontal battens 34) that extend in a direction perpendicular to the direction of the slope and are connected to the upper part of the vertical battens 31 to support the solar power generation panels 4 from below, and spacer members 5 that are positioned at least on the ridge side X2 of the horizontal battens 32 (eave-side horizontal battens 33, intermediate horizontal battens 34) and positioned between the horizontal battens 32 (eave-side horizontal battens 33, intermediate horizontal battens 34) and the solar power generation panels 4.

[0072] Therefore, the thickness of the solar power generation panel 4 can be accommodated simply by placing a spacer member 5 between the horizontal rail 32 (eaves-side horizontal rail 33, intermediate horizontal rail 34) and the solar panel 4. As a result, the basic structure of the horizontal rail 32 (eaves-side horizontal rail 33, intermediate horizontal rail 34) is not changed by simply placing the spacer member 5, thus suppressing a decrease in strength. In addition, since the shape of the ridge-side protrusions 333, 343 of the hollow parts 331, 341 of the main body of the horizontal rail 32 (eaves-side horizontal rail 33, intermediate horizontal rail 34) does not need to be changed, the processing equipment at the production site for adding drainage holes 334c to the upper surface of the ridge-side protrusions 333, 343 in the molded horizontal rail 32 (eaves-side horizontal rail 33, intermediate horizontal rail 34) does not need to be changed, and the development period can be shortened. Furthermore, since the shape of the hollow sections 331 and 341 of the main body of the horizontal bars 32 (eaves-side horizontal bars 33 and intermediate horizontal bars 34) does not need to be changed, for example, in a configuration in which adjacent horizontal bar components 321 constituting the horizontal bar 32 are connected by a connecting member 322, the shape of the connecting member 322 does not need to be changed, thus reducing the cost required to change the connecting member 322. Consequently, it is possible to accommodate the thickness of the solar power generation panel 4, suppress the reduction in strength, and shorten the development period.

[0073] Furthermore, in this embodiment, the eaves-side horizontal rail 33 has a horizontal rail ridge-side support portion 334 formed on the ridge-side X2 of the eaves-side horizontal rail 33, which supports the solar power generation panel 4 from below by interposing a spacer member 5. The horizontal rail ridge-side support portion 334 has an extended surface 334a formed parallel to the lower surface of the solar power generation panel 4, and an inclined surface 334b ​​positioned on the ridge-side X2 of the extended surface 334a and formed with a downward slope from the eaves-side X1 toward the ridge-side X2 relative to the lower surface of the solar power generation panel 4. The spacer member 5 is positioned on the horizontal rail ridge-side support portion 334 and has a spacer-side placement surface 511 formed parallel to the lower surface of the solar power generation panel 4 on which the solar power generation panel 4 is placed, and a spacer-side inclined surface 521 positioned on the ridge-side X2 of the spacer-side placement surface 511.

[0074] As a result, by providing the spacer-side inclined surface 521 on the spacer member 5, when attaching the solar power generation panel 4 to the ridge side X2 of the eaves-side horizontal rail 33, even with the spacer member 5 provided, the lower corner of the end of the eaves-side X1 of the solar power generation panel 4 will contact the spacer-side inclined surface 521 and be guided towards the spacer-side placement surface 511, just as in the case where the spacer member 5 is not provided, even if the solar power generation panel 4 is tilted at a predetermined angle so that the eaves side X1 is downward. This makes it possible to achieve the same ease of installation of the solar power generation panel 4 as in the case where the spacer member 5 is not provided, even with the spacer member 5 provided.

[0075] Furthermore, in this embodiment, the spacer-side inclined surface 521 is positioned on the ridge side X2 of the spacer-side arrangement surface 511 and inclined at the same angle as the inclined surface 334b. By providing a spacer-side inclined surface 521 parallel to the inclined surface 334b ​​of the eaves-side horizontal rail 33, it is possible to further achieve the same ease of installation of the solar power generation panel 4 as when the spacer member 5 is not provided, even in a configuration with the spacer member 5.

[0076] Furthermore, in this embodiment, the spacer member 5 is positioned to avoid the drainage holes 334d of the eaves-side crossbar 33. This improves drainage performance.

[0077] Furthermore, in this embodiment, the spacer member 5 is made of aluminum. This allows for better sliding when attaching the ends of the solar power generation panel 4 compared to when it is made of rubber, for example, making it easier to attach the solar power generation panel 4. Also, by making the spacer member 5 out of aluminum, the manufacturing cost of extrusion molding of metals such as aluminum is lower than the manufacturing cost of when it is made of rubber, for example, thus reducing the manufacturing cost of the spacer member 5 compared to when it is made of rubber, for example.

[0078] Although a preferred embodiment of the solar panel mounting system 3 of this disclosure has been described above, this disclosure is not limited to the above-described embodiment and can be modified as appropriate.

[0079] For example, in the above embodiment, the spacer member 5 was placed on the ridge side X2 of the horizontal rail 32, but the embodiment is not limited to this. In addition to placing the spacer member 5 on the ridge side X2 of the horizontal rail 32, the spacer member 5 may also be placed on the eaves side X1 of the horizontal rail 32.

[0080] In the above embodiment, the spacer member 5 was formed from a metal such as aluminum, but it is not limited to this. The spacer member 5 may also be formed from a resin material, for example.

[0081] In the above embodiment, the spacer member 5 is formed in a substantially C-shape with an open lower side, but it is not limited to this. The spacer member 5 may also be configured as a hollow structure having a hollow portion that is closed at the lower side. [Explanation of Symbols]

[0082] 1 Solar power generation roof, 3 Solar panel mounting frame, 4 Solar power generation panel (solar panel), 5 Spacer member, 31 Vertical rail, 32 Horizontal rail, 33 Eaves-side horizontal rail (horizontal rail), 334 Horizontal rail ridge-side support part (eaves-side support part), 334a Extension surface (horizontal rail-side support surface), 334b ​​Inclined surface (horizontal rail-side inclined surface), 334d Drainage hole (single drainage hole), 51 (spacer-side placement surface), 52 (spacer-side inclined surface)

Claims

1. A vertical batten extending in the direction of the roof's slope and fixed to the roof, A horizontal bar is formed extending laterally from the vertical bar and connected to the upper part of the vertical bar, supporting the solar panel from below, The system comprises a spacer member positioned at least on the ridge side of the horizontal beam and positioned between the horizontal beam and the solar panel, The horizontal rail has a ridge-side support portion formed on the ridge side of the horizontal rail, which supports the solar panel from below by interposing the spacer member. The ridge-side support portion has a horizontal support surface formed parallel to the lower surface of the solar panel, and a horizontal inclined surface positioned on the ridge side of the horizontal support surface and inclined downwards from the eaves side towards the ridge side relative to the lower surface of the solar panel. The spacer member is positioned on the ridge-side support portion and has a spacer-side mounting surface formed parallel to the lower surface of the solar panel on which the solar panel is positioned, and a spacer-side inclined surface positioned on the ridge side of the spacer-side mounting surface.

2. The solar panel mounting frame according to claim 1, wherein the spacer-side inclined surface is positioned on the ridge side of the spacer-side arrangement surface and inclined at the same angle as the horizontal brace-side inclined surface.

3. Multiple drainage holes are formed on the upper surface of the aforementioned horizontal bar. The solar panel mounting frame according to claim 1 or 2, wherein the spacer member is formed to extend in the direction in which the horizontal bar extends and is positioned to avoid at least one of the drainage holes of the horizontal bar.

4. The solar panel mounting frame according to claim 1 or 2, wherein the spacer member is made of aluminum.

5. A solar panel mounting frame according to claim 1 or 2, A solar power generation roof comprising solar panels supported on the aforementioned solar panel mounting frame.

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