JP5869901B2 - Solar power panel construction method - Google Patents

Description

  The present invention relates to a method for constructing a photovoltaic power generation panel for constructing a photovoltaic power generation panel on a roof.

  Conventionally, a roof is formed using a steel plate having a plurality of ridges along the gradient direction of the roof, and a photovoltaic power generation panel is fixed to the top surface of the ridges in the steel plate (for example, patents). References 1 and 2). This steel plate is placed only on the place where the photovoltaic power generation panel is placed on the roof (planned construction area of the photovoltaic power generation panel), and other types of roofing materials such as tiles may be placed on other parts of the roof. is there. In this case, the area of the portion to be constructed with the steel plate is generally different depending on the number of photovoltaic panels to be fixed, the dimensions of the individual photovoltaic panels, the shape and area of the roof to be constructed, and the like. For this reason, this steel sheet is generally used after being shipped from a factory by cutting it into a desired dimension at a construction site. Since this cutting work is very time-consuming, it has been a major cause that the construction period cannot be shortened.

  By the way, in Patent Documents 1 and 2, the steel plates are divided in the horizontal direction (the eaves direction of the roof), a plurality of steel plates are arranged in the horizontal direction, and the side edges of the steel plates adjacent in the horizontal direction are overlapped. Thus, the formation of a continuous roof is described. The steel plate divided in the transverse direction has an advantage that it is easy to carry compared to a single large steel plate. Moreover, it is also possible to easily change the length in the horizontal direction of the portion formed of the steel plates by increasing or decreasing the number of the steel plates arranged in the horizontal direction. However, each steel plate was in a continuous form along the gradient direction of the roof (the direction from the roof ridge toward the eaves). For this reason, when the length along the gradient direction of the roof of the part constructed with the steel plate is long, it is necessary to use a steel plate that is long in the vertical direction, which sometimes takes time to carry and construct. In addition, according to the number of photovoltaic panels arranged in the gradient direction of the roof and the longitudinal length of each photovoltaic panel, each steel plate is cut and the longitudinal length is adjusted. It was necessary and the construction period could not be shortened sufficiently.

JP 2002-180609 A JP 2011-111806 A

  The present invention has been made to solve the above-described problems, and does not require the labor of cutting a steel plate at a construction site, and the number of solar power generation panels arranged in the gradient direction of the roof or individual solar power generation. Depending on the length of the panel in the vertical direction, the length of the roof can be easily changed along the slope direction of the steel plate, which can significantly reduce the work period. A method is provided.

The above issues
A plurality of lower receiving plates and upper receiving plates each made of a cross-section hat-shaped steel plate provided with a pair of stepped portions projecting toward the upper surface side of the flat plate portion along both side edges of the flat plate portion having a rectangular shape in plan view are used. A solar panel construction method for constructing a photovoltaic panel on a roof,
A plurality of lower receiving plates are arranged so that one stepped portion in one lower receiving plate overlaps with the other stepped portion in the other lower receiving plate arranged next to the one lower receiving plate. In addition to laying the solar power generation panel on the upper surface of the roof underneath the planned construction section of the photovoltaic panel, adjust the width of the overlapping part of the step part of the lower backing plate that is adjacent to the left and right (roof eaves direction) A lower receiving plate laying step for adjusting the arrangement pitch in the eaves direction of the roof of the lower receiving plate,
One stepped portion in one upper receiving plate is the other stepped portion in the other upper receiving plate arranged next to the one upper receiving plate, and the lower side arranged in the lower stage of the one upper receiving plate. A plurality of upper receiving plates are arranged on the upper surface of the roof base so that they overlap with the upper portion of one stepped portion of the receiving plate. The upper side that adjusts the distance from the lower edge of the lower receiving plate to the upper edge of the upper receiving plate by sliding the upper receiving plate in the slope direction of the roof with respect to the lower receiving plate Receiving plate laying process;
The sun with respect to the top surface of the mountain part formed along the gradient direction of the roof by the stepped part of the lower receiving plate and the stepped part of the upper receiving plate laid in the lower receiving plate laying step and the upper receiving plate laying step A photovoltaic panel construction process for fixing the photovoltaic panel;
It is solved by providing the construction method of the photovoltaic power generation panel characterized by passing through.

  According to the construction method of the photovoltaic power generation panel of the present invention, in the lower receiving plate laying process, it is only necessary to adjust the width of the overlapping portion of the stepped portions of the adjacent lower receiving plates, and the roof of the lower receiving plate. The arrangement pitch in the eaves direction can be adjusted. Therefore, as will be described later, even if there is an error in the arrangement pitch of the reinforcing support rods fixed to the upper surface of the roof base, it can be easily handled. In addition, it is also possible to finely adjust the length along the eaves direction of the roof of the part formed of steel plates, and if the number of lower side receiving plates used is increased or decreased, the length along the eaves direction of the roof is increased. It is also possible to change significantly.

  Also, in the upper receiving plate laying process, the length along the gradient direction of the roof from the lower edge of the lower receiving plate to the upper edge of the upper receiving plate is simply sliding the upper receiving plate relative to the lower receiving plate. Can be adjusted. Therefore, without the need to cut the steel plate (the lower receiving plate and the upper receiving plate) at the construction site, the number of steps of the photovoltaic panels arranged in the gradient direction of the roof and the vertical direction of the individual photovoltaic panels Depending on the length, the length along the gradient direction of the roof of the portion formed of the steel plate can be easily changed.

  Furthermore, it is possible to standardize the dimensions of the lower receiving plate and the upper receiving plate. If the lower receiving plate and the upper receiving plate are standardized, the manufacturing cost can be reduced, and the construction cost can be further reduced by further reducing labor on site. In addition, it becomes easy to sell the lower receiving plate and the upper receiving plate together with the photovoltaic power generation panel. For example, when an order is received for a photovoltaic power generation panel, the lower receiving plate and the upper receiving plate according to the number and size (type) according to the construction area can be shipped from the storage location to the site together with the photovoltaic power generation panel. In this way, it is possible to reduce management costs and distribution costs by unifying the supply of all members necessary for the construction of the photovoltaic power generation panel.

  Furthermore, since the photovoltaic power generation panel is fixed to the top surface of the stepped portion (mountain portion) that is higher than the flat plate portion (valley portion) in the lower receiving plate and the upper receiving plate, rainwater flowing through the roof It is possible to prevent the solar power generation panel from being fixed. Therefore, it is also possible to prevent rain leakage from occurring at the fixed place of the photovoltaic power generation panel.

  When a photovoltaic power generation panel is constructed in a general house by the construction method of the photovoltaic power generation panel according to the present invention, usually a total of two stages of receiving plates composed of one lower receiving plate and one upper receiving plate. Install. However, when a photovoltaic power generation panel is constructed over a large area on the roof of a large house or a large-scale building (such as a public facility), the receiving plate can have three or more stages. That is, in the upper receiving plate laying step, two or more upper receiving plates are laid. In this case, the lower part of the upper upper receiving plate overlaps the upper part of the upper receiving plate arranged in the lower stage. The upper step from the lower edge of the lower receiving plate by overlapping the step portions of the upper receiving plate adjacent to the left and right, or by sliding the upper upper receiving plate in the gradient direction of the roof with respect to the upper receiving plate of the flower bed The adjustment of the distance to the upper edge of the upper receiving plate is the same as the case where the upper receiving plate is laid on the upper stage of the lower receiving plate.

  In the construction method of the photovoltaic power generation panel of the present invention, the dimensions of the lower receiving plate and the upper receiving plate are not particularly limited. However, if the length along the gradient direction (longitudinal direction) of the roof of each of the lower receiving plate and the upper receiving plate is too short, the number of steps for laying the lower receiving plate and the upper receiving plate increases. There is a risk that it will take time. For this reason, the length in the vertical direction of each of the lower receiving plate and the upper receiving plate is usually 1 m or more. The longitudinal length of each of the lower receiving plate and the upper receiving plate is preferably 1.5 m or more. On the other hand, if the longitudinal length of each of the lower and upper receiving plates is too long, not only is it difficult to carry the lower and upper receiving plates, but there is a risk that it will take time to construct them. . For this reason, the vertical length of each of the lower receiving plate and the upper receiving plate is usually 7 m or less. The length in the vertical direction of each of the lower receiving plate and the upper receiving plate is preferably 5 m or less.

  In addition, even if the length along the eaves direction (lateral direction) of the roof of each of the lower receiving plate and the upper receiving plate is too short, the number of the lower receiving plate and the upper receiving plate laid on the same step increases. There is a risk that it will take time for the construction. For this reason, the horizontal length of each of the lower receiving plate and the upper receiving plate is usually 0.3 m or more. The lateral length of each of the lower side receiving plate and the upper side receiving plate is preferably 0.5 m or more, and more preferably 1 m or more. On the other hand, if the lateral lengths of the lower and upper receiving plates are too long, it is not only difficult to carry the lower and upper receiving plates, but the photovoltaic power generation panel can be fixed only with a wide span. There is a risk that the fixing strength of the photovoltaic power generation panel will decrease. For this reason, the horizontal length of each of the lower receiving plate and the upper receiving plate is usually 3 m or less. The length of each roof material in the lateral direction is preferably 2 m or less.

  In the construction method of the photovoltaic power generation panel of the present invention, the height of each stepped portion in the lower receiving plate and the upper receiving plate is not particularly limited. However, if the level difference is made too low, rainwater flowing through the roof tends to reach the top surface of the mountain, and there is a possibility that rain leakage will occur at the fixed portion of the solar power generation panel in the mountain. In addition, when the upper receiving plate is slid with respect to the lower receiving plate in the upper receiving plate laying step, the stepped portion of the upper receiving plate is easily dropped from the stepped portion of the lower receiving plate, There is also a possibility that workability at the time of adjusting the distance from the lower edge to the upper edge of the upper receiving plate is lowered. For this reason, the height of each step part in the lower side receiving plate and the upper side receiving plate is usually 2 cm or more. The height of each step portion in the lower receiving plate and the upper receiving plate is preferably 2.5 cm or more, and more preferably 3 cm or more.

  On the other hand, if each level difference part in a lower receiving plate and an upper receiving plate is made too high, the amount of steel plates required for manufacturing the lower receiving plate and the upper receiving plate will increase, and the appearance of the roof after construction will deteriorate. There is also a fear. In addition, when the upper receiving plate is slid with respect to the lower receiving plate in the upper receiving plate laying process, the frictional resistance that the stepped portion of the upper receiving plate receives from the stepped portion of the lower receiving plate is increased. May be difficult to slide. For this reason, the height of each stepped portion in the lower receiving plate and the upper receiving plate is usually 15 cm or less. The height of each step in the lower receiving plate and the upper receiving plate is preferably 10 cm or less, and more preferably 5 cm or less.

  In the construction method of the photovoltaic power generation panel of the present invention, the lower receiving plate laying step and the upper receiving plate laying step may be performed on the upper surface of the flat roof base, but the lower receiving plate laying step is performed. Before this, a plurality of reinforcing support bars extending along the roof gradient direction are fixed to the eaves direction of the roof at a predetermined pitch in the planned construction area of the photovoltaic panel on the upper surface of the roof base. In the lower receiving plate laying step and the upper receiving plate laying step, the lower receiving plate and the upper receiving plate are arranged so that the stepped portion of the lower receiving plate and the stepped portion of the upper receiving plate overlap with the reinforcing support rod. Is preferable. As a result, the stepped portion of the lower receiving plate and the stepped portion of the upper receiving plate are supported from the lower side by the reinforcing support rod, and the strength of the peak portion to which the photovoltaic power generation panel is fixed can be increased. In addition, the lower receiving plate and the upper receiving plate can be installed using the reinforcing support rod as a guide in the lower receiving plate laying process and the upper receiving plate laying process, and these laying operations can be easily performed. become.

  As described above, according to the present invention, it is not necessary to cut the steel sheet at the construction site, and the number of photovoltaic panels arranged in the gradient direction of the roof and the length of each photovoltaic panel in the vertical direction are as follows. Accordingly, it is possible to easily change the length of the portion formed of steel plate along the roof gradient direction, and to provide a solar panel construction method that can significantly reduce the construction period. Become. Therefore, the construction cost of the photovoltaic power generation panel can be greatly reduced.

It is the perspective view which showed the state which has laid the underlaying material on the upper surface of the field board which comprises a roof base | substrate. It is the perspective view which showed the state which attached the arabesque sheet metal to the roof base | substrate. It is the perspective view which showed the state which fixed the support bar for reinforcement to the upper surface of the roof base. It is the perspective view which showed the state which has arranged and installed the several lower side receiving plate in the lowest step part of the construction plan area of the photovoltaic power generation panel in the upper surface of a roof base | substrate. It is the expanded sectional view which cut | disconnected the state which arranged the several lower side receiving plate in the arrangement | positioning pitch of a narrow slot | line, and cut | disconnected by the plane parallel to an xz surface. It is the expanded sectional view which cut | disconnected the state which arranged the several lower side receiving plate in the arrangement | positioning pitch of the wide pattern, and was cut | disconnected by the plane parallel to xz surface. It is the perspective view which showed the state which put in order and arranged the several lower side receiving plate in the lowest step part of the construction plan area of the photovoltaic power generation panel in the upper surface of a roof base. It is the perspective view which showed the state which has arrange | positioned the several upper receiving plate in the upper step part rather than the part by which the lower receiving plate of the construction plan area of the photovoltaic power generation panel in the upper surface of a roof base | substrate was laid. It is sectional drawing which cut | disconnected the state which laid the upper receiving plate so that the distance from the lower edge of a lower receiving plate to the upper edge of an upper receiving plate might become long with a plane parallel to a yz surface. It is sectional drawing which cut | disconnected the state which laid the upper receiving plate so that the distance from the lower edge of a lower receiving plate to the upper edge of an upper receiving plate might become short with a plane parallel to a yz surface. It is the perspective view which showed the state which finished laying the lower side receiving plate and the upper side receiving plate in the construction plan area of the photovoltaic power generation panel in the upper surface of a roof base. It is the perspective view which showed the state which fixed the metal fitting to the top face of the peak part formed of the level | step-difference part of a lower side receiving plate, and the level | step-difference part of an upper side receiving plate. It is the perspective view which showed the state which fixed the photovoltaic power generation panel with respect to the top face of the peak part formed of the level | step-difference part of a lower side receiving plate, and the level | step-difference part of an upper side receiving plate.

  The suitable embodiment of the construction method of the photovoltaic power generation panel of this invention is demonstrated more concretely using drawing. 1 to 13, the x axis is a horizontal axis parallel to the eaves direction of the roof, the y axis is a horizontal axis extending from the eaves of the roof toward the ridge side, and the z axis is the x axis and the y axis. Is a vertical axis perpendicular to. The construction method of the photovoltaic power generation panel according to this embodiment includes a roof foundation construction process, a reinforcing support bar fixing process, a lower backing plate laying process, an upper backing plate laying process, and a photovoltaic power panel construction process. A total of five steps are performed in this order.

1. Roof foundation construction process First, the roof foundation construction process will be described. FIG. 1 is a perspective view showing a state in which an underlaying material 103 is laid on the upper surface of a field board 102 constituting the roof base 100. FIG. 2 is a perspective view showing a state in which the arabesque sheet metal 104 is attached to the roof base 100. The roof foundation construction step is a step of constructing the roof foundation 100 as shown in FIGS. In the construction method of the photovoltaic power generation panel according to the present embodiment, the roof foundation construction process includes a sheet having a waterproof property on the upper surface of the field board 101, with a field board 102 stretched on the upper surface of the rafter 101, as shown in FIG. This is done by laying an underlaying material 103. As the lower covering material 103, asphalt roofing, a vinyl chloride sheet, or the like can be used. Even when a photovoltaic power generation panel is constructed only in a part of the upper surface of the roof base 100 and the other part is finished with an upper covering material such as a tile, the lower covering material 103 is basically formed on the upper surface of the roof base 100. Lay out the whole (even in the area where no photovoltaic panels are installed). As shown in FIG. 2, an arabesque sheet metal 104 for draining water is fixed to the leading edge of the roof base 100 (the eaves tip portion, a location along a windbreak plate not shown).

2. Reinforcing support bar fixing process When the roof foundation construction process is completed, a reinforcing support bar fixing process is subsequently performed. FIG. 3 is a perspective view showing a state in which the reinforcing support bar 105 is fixed to the upper surface of the roof base 100. In the reinforcing support bar fixing step, as shown in FIG. 3, a plurality of reinforcing support bars 105 extending along the gradient direction of the roof are provided on the roof of the roof base 100 in the planned construction area of the photovoltaic power generation panel. This is a step of fixing at a predetermined pitch in the direction of the eaves. The reinforcing support bar 105 is usually fixed to the roof base 100 using a fastener (not shown) such as a nail. The lateral arrangement pitch of the reinforcing support bars 105 (arrangement pitch in the eaves direction of the roof) coincides with the lateral arrangement pitch of the mountain portion fixing the photovoltaic power generation panel, as will be described later. For this reason, the arrangement pitch of the reinforcing support bars 105 is appropriately determined in consideration of the dimensions of the photovoltaic power generation panel to be constructed. A fastener such as a nail for fixing the reinforcing support bar 105 may reach the base plate 102 in the roof base 100, but if it reaches the rafter 101 on the lower side, the reinforcing support for the roof base 100 is provided. The rod 105 can be fixed more firmly. For this reason, in the construction method of the photovoltaic power generation panel of this embodiment, the horizontal arrangement pitch of the rafters 101 is set to the horizontal arrangement pitch of the reinforcing support bars 105 (that is, the horizontal arrangement pitch of the mountain portion). The rafters 101 are allocated so as to match.

3. Lower receiving plate laying process After the reinforcing support bar fixing process is completed, the lower receiving plate laying process is subsequently performed. FIG. 4 is a perspective view showing a state in which a plurality of lower receiving plates 10 are laid side by side on the lowermost step portion of the planned construction section of the photovoltaic power generation panel on the upper surface of the roof base 100. In the lower receiving plate laying step, as shown in FIG. 4, a plurality of lower receiving plates 10 are laid in the horizontal direction at the lowest step portion of the planned construction section of the photovoltaic power generation panel on the upper surface of the roof base 100. It is a process. Each lower receiving plate 10 is made of a steel plate having a hat-shaped cross section, and has a flat plate portion 11 having a rectangular shape in plan view, and a pair of protrusions protruding toward the upper surface side of the flat plate portion 11 along both side edges of the flat plate portion 11. It consists of stepped portions 12 and 13. In the construction method of the photovoltaic power generation panel of this embodiment, the lower receiving plate 10 is formed of a galvanium steel plate.

  In the lower receiving plate laying step, as shown in FIG. 4, the plurality of lower receiving plates 10 have one stepped portion 12 in one lower receiving plate 10, In order to overlap with the other stepped portion 13 in the other lower receiving plate 10 arranged next to each other, the roof is sequentially laid from one to the other in the eaves direction of the roof. The portion where the stepped portion 12 and the stepped portion 13 overlap becomes a mountain portion β along the gradient direction of the roof. A plurality of peaks β are formed at a predetermined pitch along the gradient direction of the roof, and valleys α formed by the flat plate portion 11 are formed between them. Each of the lower receiving plates 10 can be easily positioned with respect to the roof base 100 by overlapping the stepped portions 12 and 13 on the reinforcing support rod 105. The number of lower receiving plates 10 used is appropriately determined according to the width of the planned construction section of the photovoltaic power generation panel.

Further, in this lower receiving plate laying step, as shown in FIGS. 5 and 6, the lower receiving plate is adjusted by adjusting the width A of the overlapping portions of the stepped portions 12 and 13 of the adjacent lower receiving plates 10. The arrangement pitch P in the eaves direction of 10 roofs can be adjusted. FIG. 5 is an enlarged cross-sectional view of a state in which a plurality of lower receiving plates 10 are arranged with a narrow arrangement pitch A (= A ₁ ) and cut along a plane parallel to the xz plane. FIG. 6 is an enlarged cross-sectional view of a state in which a plurality of lower receiving plates 10 are laid out with a wide arrangement pitch A (= A ₂ > A ₁ ) cut along a plane parallel to the xz plane. Thereby, even if there is an error in the arrangement pitch of the reinforcing support bars 105 or the reinforcing support bars 105 are not completely parallel to the gradient direction of the roof, the lower receiving plate 10 is laid. Can be done. When the lower receiving plate 10 is laid at an appropriate place, the lower receiving plate 10 is fixed to the roof base 100. The lower receiving plate 10 is fixed to the roof base 100 by driving a fastener such as a nail (not shown) from the upper surface side of the lower receiving plate 10. However, when a nail is driven into the valley α, there is a possibility that rain leaks from that portion, so that a fastener such as a nail is driven from the top surface of the peak β to the reinforcing support rod 105 below the peak β. To.

  The dimension of the lower receiving plate 10 is not particularly limited as described above. In the construction method of the photovoltaic power generation panel of this embodiment, the length along the gradient direction (vertical direction) of the roof of the lower receiving plate 10 is about 4 m. On the other hand, the length along the eaves direction (lateral direction) of the roof of the lower receiving plate 10 is 1 m. The height of the stepped portions 12 and 13 in the lower receiving plate 10 is about 3 cm. Further, the horizontal width (width along the eaves direction of the roof) of the horizontal portions (flange portions) in the stepped portions 12 and 13 of the lower receiving plate 10 is not particularly limited, but the arrangement pitch of the lower receiving plate 10 described above. In consideration of securing the margin for adjusting P and preventing the front end of the flange portion from protruding from the side surface of the peak portion β after the lower receiving plate 10 is laid, it is usually set to 3 to 20 cm. The lateral width of the flange portion is preferably 5 to 15 cm. In the construction method of the photovoltaic power generation panel of the present embodiment, the lateral width of the flange portion is about 10 cm.

  FIG. 7 is a perspective view showing a state in which a plurality of lower receiving plates 10 are laid side by side at the lowest step portion of the planned construction section of the photovoltaic power generation panel on the upper surface of the roof base 100. As shown in FIG. 7, it is preferable that the waterproof tape 50 is fixed to a location along the upper edge of the laid lower receiving plate 10 (a location where the upper receiving plate 20 is overlapped in the upper receiving plate laying step described later). Thereby, it becomes possible to prevent rainwater from entering the roof base 100 side through the gap between the lower receiving plate 10 and the upper receiving plate 20, and rain leakage can be more reliably prevented.

4). Upper receiving plate laying step When the lower receiving plate laying step is completed, the upper receiving plate laying step is subsequently performed. FIG. 8 shows a state in which a plurality of upper receiving plates 20 are laid side by side on the upper stage portion of the upper surface of the roof base 100 from the portion where the lower receiving plate 10 of the planned construction section of the photovoltaic power generation panel is laid. FIG. As shown in FIG. 8, the upper receiving plate laying step is a step of laying a plurality of upper receiving plates 20 side by side in the upper stage of the planned construction section of the photovoltaic panel on the upper surface of the roof base 100. . Each upper receiving plate 20 is formed of a cross-sectional hat-shaped steel plate having the same cross-sectional shape as the lower receiving plate 10, and has a flat plate portion 21 having a rectangular shape in plan view and along both side edges of the flat plate portion 21. The flat plate portion 21 includes a pair of step portions 22 and 23 protruding from the upper surface side. In the construction method of the photovoltaic power generation panel of this embodiment, the upper receiving plate 20 is formed of a galvanium steel plate.

  In the upper receiving plate laying step, as shown in FIG. 8, the plurality of upper receiving plates 20 are arranged such that one step portion 22 in one upper receiving plate 20 is adjacent to the one upper receiving plate 20. The other stepped portion 23 in the other upper receiving plate 20 and the upper portion of one stepped portion 12 (see FIG. 5) in the lower receiving plate 10 arranged in the lower stage of the one upper receiving plate 20 respectively overlap. In this way, the roof is sequentially laid from one side to the other side in the eaves direction. A portion where the stepped portion 22 and the stepped portion 23 overlap becomes a mountain portion β along the gradient direction of the roof. A plurality of ridges β are formed at a predetermined pitch along the gradient direction of the roof, and between them the valleys α formed by the flat plate portion 11 are the same as when the lower receiving plate 10 is laid. is there. Further, each upper receiving plate 20 can be easily positioned with respect to the roof base 100 by overlapping the step portions 22 and 23 on the reinforcing support rod 105, and the number of the upper receiving plates 20 used is as follows. Further, it is also the same as the case of laying the lower receiving plate 10 that the appropriate determination is made according to the width of the planned construction section of the photovoltaic power generation panel.

In this upper receiving plate laying step, as shown in FIGS. 9 and 10, the upper receiving plate 20 and the lower receiving plate 10 are slid with respect to the lower receiving plate 10 in the gradient direction of the roof. The distance C from the lower edge of the lower receiving plate 10 to the upper edge of the upper receiving plate 20 can be adjusted by changing the length B along the slope direction of the roof of the overlapping portion. FIG. 9 shows a state in which the upper receiving plate 20 is laid so that the distance C from the lower edge of the lower receiving plate 10 to the upper edge of the upper receiving plate 20 becomes long (C = C ₁ ). It is sectional drawing cut | disconnected by the plane parallel to this. FIG. 10 shows a state in which the upper receiving plate 20 is laid so that the distance C from the lower edge of the lower receiving plate 10 to the upper edge of the upper receiving plate 20 becomes shorter (C = C ₂ <C ₁ ). It is sectional drawing cut | disconnected by the plane parallel to -z surface. Thereby, it becomes possible to adjust the distance C continuously according to the length (length along the gradient direction of the roof) of the planned construction section of the photovoltaic power generation panel. Therefore, even if the vertical length of the photovoltaic power generation panel and the number of construction steps are different and the vertical length of the planned construction section of the photovoltaic power generation panel varies depending on the construction site, it can be easily and flexibly handled by simply sliding the upper receiving plate 20. It becomes possible.

  The dimension of the upper receiving plate 20 is not particularly limited as described above. The length along the eaves direction (lateral direction) of the roof of the upper receiving plate 20 is usually aligned with the length along the horizontal direction of the lower receiving plate 10. However, it is preferable that the horizontal width of the flat plate portion 21 of the upper receiving plate 20 be narrower than the horizontal width of the flat plate portion 11 of the lower receiving plate 10 by an amount corresponding to the plate thickness (for two sheets) of the upper receiving plate 20. As a result, the upper receiving plate 20 can be easily slid with respect to the lower receiving plate 10. On the other hand, the length of the upper receiving plate 20 along the gradient direction (vertical direction) of the roof need not be equal to the length of the lower receiving plate 10 along the vertical direction. In the construction method of the photovoltaic power generation panel of this embodiment, the length of the upper receiving plate 20 along the longitudinal direction of the roof is about 3.5 m. On the other hand, the length along the horizontal direction of the upper receiving plate 20 is 1 m. Regarding the height of the stepped portions 22 and 23 in the upper receiving plate 20 and the horizontal width (width along the eaves direction of the roof) of the horizontal portion (flange portion) in the stepped portions 22 and 23, the stepped portion in the lower receiving plate 10 12 and 23. An upward standing piece (not shown) for returning water may be formed at a location along the upper edge of the flat plate portion 21 of the upper receiving plate 20.

  FIG. 11 is a perspective view showing a state in which the lower receiving plate 10 and the upper receiving plate 20 have been laid in the planned construction area of the photovoltaic power generation panel on the upper surface of the roof base 100. On the upper surface of the roof base 100 after the upper receiving plate laying step, as shown in FIG. 11, a plurality of mountain portions β are formed along the gradient direction of the roof. In the construction method of the photovoltaic power generation panel of the present embodiment, the upper receiving plate laying process is completed only by laying the upper receiving plate 20 in one stage. It can also be arranged in more than steps.

5. Photovoltaic panel construction process After completing the upper receiving plate laying process, the photovoltaic panel construction process is subsequently performed. FIG. 12 shows a metal fitting on the top surface of the crest β formed by the step portions 12 and 13 of the lower receiving plate 10 (see FIG. 4) and the step portions 22 and 23 of the upper receiving plate 20 (see FIG. 8). It is the perspective view which showed the state which fixed 30. FIG. 13 shows the top surface of the crest β formed by the step portions 12 and 13 of the lower receiving plate 10 (see FIG. 4) and the step portions 22 and 23 of the upper receiving plate 20 (see FIG. 8). It is the perspective view which showed the state which fixed the photovoltaic power generation panel 40. As shown in FIGS. 12 and 13, the photovoltaic power generation panel construction process is a process of fixing the photovoltaic power generation panel 40 to the top surface of the mountain part β formed along the gradient direction of the roof.

  In the construction method of the photovoltaic power generation panel of this embodiment, the photovoltaic power generation panel construction step is as shown in FIG. 12, first, after fixing the metal fitting 30 to a predetermined location on the top surface of the mountain portion β, FIG. As shown, the photovoltaic power generation panel 40 is fixed to the metal fitting 30. In this way, by fixing the solar power generation panel 40 to the top surface of the mountain part β, not only does it prevent rain leakage, but also a solar power generation panel without attaching a stand for attaching the solar power generation panel separately. 40 can be easily fixed. The metal fitting 30 can adopt various forms according to the specifications of the photovoltaic power generation panel 40, even if the metal fitting 30 has a form other than that shown in FIG.

6). Others The solar cell power panel construction method of the present invention is completed. In places other than where the photovoltaic power generation panel 40 is constructed on the upper surface of the roof base 100, an upper covering material such as a tile is constructed. As mentioned above, according to the construction method of the photovoltaic power generation panel of the present invention, it is possible to reduce the time required for the photovoltaic power generation panel 40 without cutting the steel plate (the lower receiving plate 10 and the upper receiving plate 20) at the construction site. It is possible to lay plate materials (the lower receiving plate 10 and the upper receiving plate 20) formed of steel plates so as to match the planned construction section. For this reason, the construction period accompanying the construction of the photovoltaic power generation panel 40 can be greatly shortened, and the construction cost can be greatly reduced. In addition, as described below, it is possible to realize a business model in which the lower receiving plate 10 and the upper receiving plate 20 are sold together with the photovoltaic power generation panel 40.

  First, members (solar power generation panel set) necessary for the construction of the solar power generation panel 40 such as the lower side receiving plate 10, the upper side receiving plate 20, the metal fitting 30, and the solar power generation panel 40 in a certain place (such as a warehouse). Keep in stock. It is preferable to prepare not only one type of lower side receiving plate 10 and upper side receiving plate 20 but also a plurality of types. For example, each of the lower receiving plate 10 and the upper receiving plate 20 has a vertical length of 1.5 m (1.5 m type), a vertical length of 3 m (3 m type), and a vertical length of 3.5 m. There are four types, one each (3.5 m type) and one 4 m long (4 m type). The widths of the lower receiving plate 10 and the upper receiving plate 20 may all be the same (for example, 1 m).

  When an order is received for the photovoltaic power generation panel 40, the required number of photovoltaic power generation panels 40 is determined by the amount of power generation, and the width and length of the planned construction section of the photovoltaic power generation panel 40 are determined. The type and required number of lower receiving plates 10 and the type and required number of upper receiving plates 20 are determined according to the dimensions of the planned construction section. For example, if the planned width of the photovoltaic power generation panel 40 is less than 7 m and the length is 4 m, prepare 7 3 m type lower receiving plates 10 and 7 1.5 m type upper receiving plates To do. These lower receiving plate 10 and upper receiving plate 20 are shipped to the site together with the photovoltaic power generation panel 40.

  According to the above business model, not only greatly shortening the period from receiving an order to construction, but also purchasing or producing a large number of photovoltaic power generation panels 40 together, The cost of obtaining 40 can be greatly reduced. In addition, the distribution cost can be greatly reduced. Therefore, the introduction cost of the photovoltaic power generation panel 40 can be greatly reduced, and the spread of the photovoltaic power generation panel 40 can be promoted.

DESCRIPTION OF SYMBOLS 10 Lower side receiving plate 11 Flat plate part 12 Step part 13 Step part 20 Upper side receiving plate 21 Flat plate part 22 Step part 23 Step part 30 Metal fitting 40 Solar power generation panel 50 Waterproof tape 100 Roof base 101 Rafter 102 Field plate 103 Underlaying material 104 Arabesque sheet metal 105 Reinforcing support bar A Width of overlapping part of adjacent lower receiving plate B B Length of upper overlapping plate and lower receiving plate along the roof gradient direction C Lower receiving plate Distance from the lower edge of the plate to the upper edge of the upper receiving plate P Arrangement pitch in the eaves direction of the roof of the lower receiving plate α Valley portion β Mountain portion

Claims (4)

A plurality of lower receiving plates and upper receiving plates each made of a cross-section hat-shaped steel plate provided with a pair of stepped portions projecting toward the upper surface side of the flat plate portion along both side edges of the flat plate portion having a rectangular shape in plan view are used. A solar panel construction method for constructing a photovoltaic panel on a roof,
A plurality of lower receiving plates are arranged so that one stepped portion in one lower receiving plate overlaps with the other stepped portion in the other lower receiving plate arranged next to the one lower receiving plate. In addition to laying the solar power generation panel on the upper surface of the roof base in parallel with the lowermost step portion of the planned construction section and adjusting the width of the overlapping portion of the step portions of the adjacent lower support plates, A lower receiving plate laying process for adjusting the arrangement pitch of the roof eaves direction,
One stepped portion in one upper receiving plate is the other stepped portion in the other upper receiving plate arranged next to the one upper receiving plate, and the lower side arranged in the lower stage of the one upper receiving plate. A plurality of upper receiving plates are arranged on the upper surface of the roof base so that they overlap with the upper portion of one stepped portion of the receiving plate. The upper side that adjusts the distance from the lower edge of the lower receiving plate to the upper edge of the upper receiving plate by sliding the upper receiving plate in the slope direction of the roof with respect to the lower receiving plate Receiving plate laying process;
The sun with respect to the top surface of the mountain part formed along the gradient direction of the roof by the stepped part of the lower receiving plate and the stepped part of the upper receiving plate laid in the lower receiving plate laying step and the upper receiving plate laying step A photovoltaic panel construction process for fixing the photovoltaic panel;
The construction method of the photovoltaic power generation panel characterized by passing through.   The lower side receiving plate and the upper side receiving plate having a length of 1 to 7 m along the gradient direction of the roof and a width of 0.3 to 3 m along the eaves direction of the roof are used. Method of solar power generation panel.   The construction method of the solar power generation panel of Claim 1 or 2 using the thing whose height of the level | step-difference part is 2-15 cm as a lower side receiving plate and an upper side receiving plate. Prior to performing the lower backing plate laying process, a plurality of reinforcing support bars extending along the gradient direction of the roof are installed in the roof eaves direction in the planned construction area of the photovoltaic power generation panel on the upper surface of the roof base. A reinforcing support rod fixing process for fixing at a predetermined pitch is performed,
The lower receiving plate and the upper receiving plate are laid so that the stepped portion of the lower receiving plate and the stepped portion of the upper receiving plate overlap the support rod for reinforcement in the lower receiving plate laying step and the upper receiving plate laying step. The construction method of the solar power generation panel in any one of 1-3.

Images