JP2011052520A - Structure connecting structure, connecting member for use in the same, and method for constructing the same, and solar cell system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure connecting structure firmly supporting a solar cell module even when wind pressure is applied to the front and back sides of the solar cell module. <P>SOLUTION: One set of two first connecting fittings 41 is arranged in an opposed manner via a crossrail 15, and arranged in such a manner as to be vertically symmetrical with respect to a center line S of the crossrail 15. Bolts 45 for fixing the upper and lower solar cell modules 17 are screwed into the screw holes 41d of the first connecting fittings 41, respectively. The respective bolts 45 are also arranged in such a manner as to be vertically symmetrical with respect to the center line S of the crossrail 15. Thus, when the wind pressure is applied to the front and back sides of each of the upper and lower solar cell modules 17, it acts without leaning to one side with respect to the center line S of the crossrail 15. This improves the load bearing property of the crossrail 15. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a structure connection structure for connecting and fixing a structure such as a solar cell module, a connection member used therefor, a construction method thereof, and a solar cell system.

  For example, in a solar cell system, a solar cell module as a structure is fixedly supported on a gantry. This mount not only simply supports the load of the solar cell module, but also has to withstand the wind pressure received by the solar cell module, and is required to have high strength. Since a large wind pressure is likely to be applied to the flat solar cell module, sufficient attention is paid to the strength of the gantry.

  For example, in the mounting structure of Patent Document 1, a support rail combining a plurality of cylindrical bodies is fixed, and the end portion of the solar cell module is supported by the support rail. Since the cylindrical body itself has a large section modulus, the strength of the support rail is increased by combining a plurality of cylindrical bodies.

  Moreover, in the attachment structure of patent document 2, the several flame | frame which has a hat-shaped cross-sectional shape is arranged in parallel, and the solar cell module is fixedly supported on these frames. The hat-shaped frame has a large section modulus and high frame strength.

JP 2001-164713 A Japanese Patent Laid-Open No. 9-235844

  By the way, in the attachment structure of patent documents 1 and 2, it is premised on the installation of the solar cell module on the roof of a house or the like, the solar cell module is placed on the roof, and only the light receiving surface side of the solar cell module is placed. Therefore, it is only necessary to withstand the wind pressure applied to the light receiving surface side.

  In the mounting structure of Patent Document 1, the cover material is stacked on the end portion of the solar cell module, and this cover material is screwed to the top plate of the support frame, but this is still on the light receiving surface side of the solar cell module. Can withstand wind pressure. In addition, in the mounting structure of Patent Document 2, the end of the solar cell module is locked to a hook formed on the top plate of the frame, but it also withstands the wind pressure applied to the light receiving surface side of the solar cell module. It is done.

  However, in a large-scale power plant or the like, since a large number of solar cell modules are inclined and arranged side by side, wind pressure is applied to the front and back of the solar cell modules. For this reason, the solar cell module is simply screwed to the top plate of the support frame as in Patent Document 1, or the solar cell module is simply locked by the hook on the top plate of the frame as in Patent Document 2. When wind pressure is applied to the back side of the module, there is a high possibility that the screw will come off from the top plate of the support frame or that the hook will come off and the solar cell module will blow off. It was insufficient.

  Therefore, the present invention has been made in view of the above-described conventional problems, and is a structure connection structure capable of firmly supporting a solar cell module even when wind pressure is applied to the front and back of the solar cell module. It aims at providing the connecting member used, its construction method, and a solar cell system.

  In order to solve the above-mentioned problems, a structure connection structure according to the present invention is a structure connection structure for connecting and fixing a structure, and a crosspiece on which the structure is mounted; A connecting member that is fixedly connected to the crosspiece, the crosspiece has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate, The connection member is overlapped and fixed on the side plate of the crosspiece, and the connection portion between the connection member and the structure is located on the centerline of the crosspiece or in a line-symmetric position with respect to the centerline.

  For example, the connection members are one-to-one set, and the connection members are overlapped and fixed on the side plates of the crosspieces, and the structures are symmetrical with respect to the center line of the crosspieces. It is connected to the position of the member.

  Alternatively, the connection member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate, and the cross-section of the connection member is the crosspiece. The structure is connected to the main plate of the connecting member through a hole on the center line of the main plate of the crosspiece.

  The connection member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate, and the cross-section of the connection member is the crosspiece. Each side plate of the connecting member and each side plate of the crosspiece are overlapped with each other.

  A reinforcing member having a main plate and a pair of side plates extending in the same direction, each side extending in the direction of the pair of side plates being connected by the main plate; It is arranged inside the cross section, each side plate of the reinforcing member is overlapped with each side plate portion of the crosspiece, and the opening of the cross section of the crosspiece is closed by the main plate of the reinforcing member.

  Or the pipe arrange | positioned inside the cross section of the said crosspiece, the hole of each side plate of the said crosspiece, and the axis | shaft fixed by passing through the said pipe are provided.

  Furthermore, the connection member includes a protrusion protruding on the main plate of the crosspiece.

  The crosspiece has a hat-shaped cross section that includes a pair of side plates facing each other, a main plate that connects the side plates, and a hook that is bent at an edge of the side plates.

  Moreover, the support position of the structure by the connection member is above the main plate of the crosspiece.

  Next, the connection member of the present invention is a one-to-one set, and has a main plate bent at a side plate and an edge of the side plate, and a hole for fixing a structure is formed on the main plate of each connection member. And the protrusion part is protrudingly provided by the main plate of each said connection member.

  Further, a plurality of holes for fixing the structure are formed in the main plate of the connection member, and the interval between the holes is set so that the structure can be arranged in the space between the holes.

  Alternatively, the connecting member of the present invention has a main plate and a pair of side plates extending in the same direction, and each side extending in the direction of the pair of side plates is connected by the main plate, and is on the center line of the main plate. A hole for fixing the structure is formed, and a protrusion is provided on the main plate.

  Next, the construction method of the present invention is the construction method of the structure connection structure of the present invention, wherein the connection member includes a protrusion protruding on the main plate of the crosspiece, and the structure is It is placed on the main plate of the crosspiece and is positioned by being locked to the protrusion of the connecting member.

  The solar cell system of the present invention uses the structure connection structure of the present invention to connect and fix a solar cell module as a structure on the bar.

  And a fixing member disposed opposite to the connection member fixed to the crosspiece, and fixing the solar cell module by sandwiching a side of the solar cell module in a water flow direction between the connection member and the fixing member. is doing.

  In the structure connection structure of the present invention, the crosspiece has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate. Such crosspieces have a U-shape or a cross-sectional shape close to a U-shape, and the cross-section coefficient is large, and the strength of the crosspiece is increased.

  Moreover, since the connection member is overlapped and fixed on the side plate of the crosspiece, the connection strength of the structure is improved.

  Furthermore, the connection location of the connection member and the structure is at a position on the center line of the crosspiece or at a position symmetrical with respect to the center line. For this reason, when wind pressure is applied to the structure, the wind pressure acts without being biased with respect to the center line of the crosspiece. Thereby, the load resistance of the crosspiece is improved.

  If the wind pressure acts on a part that is deviated from the center line of the crosspiece, a force that twists the crosspiece acts, so that the strength of the crosspiece is reduced.

  In addition, since the structure is connected to the connection member, the strength of the connection part of the structure can be improved even if the strength of the connection member is increased without increasing the strength of the crosspiece.

  For example, the connection members are one-on-one, and the pair of connection members are overlapped and fixed on the side plates of the crosspiece, and the structure is connected to the position of each connection member that is line-symmetric with respect to the center line of the crosspiece. Is done. Alternatively, the connecting member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate, and the cross section of the connecting member is the inner side of the cross section of the crosspiece The structure is connected to the main plate of the connecting member through a hole on the center line of the main plate of the crosspiece. In any configuration, the strength of the connecting portion of the structure is improved, and the wind pressure applied to the structure acts without being biased with respect to the center line of the crosspiece, so that the load resistance of the crosspiece is improved.

  Moreover, it arrange | positions so that the cross section of a connection member may overlap the inner side of the cross section of a crosspiece, and each side plate of a connection member and each side plate of a crosspiece are piled up. Thereby, each side plate becomes a double structure, and the strength of the portion of this double structure is improved.

  The reinforcing member has a cross section disposed inside the cross section of the crosspiece, each side plate of the reinforcing member overlaps with each side plate portion of the crosspiece, and the main plate of the reinforcing member opens the opening of the cross section of the crosspiece Is closed. That is, the cross-sectional shape of the crosspiece is closed by the reinforcing member. Thereby, the cross-section coefficient of the crosspiece becomes larger, and the strength of the crosspiece further increases.

  Or the pipe | tube arrange | positioned inside the cross section of a crosspiece, the hole of each side plate of a crosspiece, and the axis | shaft fixed by passing through a pipe are provided. Such pipes and shafts can also increase the strength of the crosspiece.

  Furthermore, since the connection member includes a protrusion protruding on the main plate of the crosspiece, the structure can be placed on the main plate of the crosspiece and locked to the protrusion of the connection member to position the structure.

  Moreover, the crosspiece has a hat-shaped cross section including a pair of side plates facing each other, a main plate connecting the side plates, and respective ridges bent at the edges of the side plates. The section modulus of the hat-shaped section is larger than the section coefficient of the section composed only of the main plate and each side plate, and the strength of the crosspiece is higher.

  Further, since the support position of the structure by the connecting member is above the main plate of the crosspiece, the structure is lifted from the crosspiece, a water path is formed between the structure and the crosspiece, and water is prevented from accumulating. .

  Next, the connection member of the present invention is a one-to-one set, and includes a side plate and a main plate bent at an edge of the side plate, and a hole for fixing a structure is formed in the main plate of each connection member. The protrusions are provided on the main plate of each connection member. Further, a plurality of holes for fixing the structure are formed in the main plate of the connection member, and the interval between the holes is set so that the structure can be arranged in the space between the holes. Alternatively, the connecting member of the present invention has a main plate and a pair of side plates extending in the same direction, and each side extending in the direction of the pair of side plates is connected by the main plate, and is structured on the center line of the main plate. A hole for fixing an object is formed, and a protrusion is provided on the main plate.

  Such a connection member of the present invention is used to implement the structure connection structure of the present invention.

  Next, in the construction method of the present invention, when the structure is placed on the main plate of the crosspiece, the structure is locked and positioned on the protruding portion of the connecting member, so that the construction work is easy.

  Moreover, in the solar cell system of this invention, since the structure connection structure of the said invention is used, a solar cell module can be firmly connected and fixed on a crosspiece.

  Further, the solar cell module is fixed by including a fixing member disposed opposite to the connection member fixed to the crosspiece, and sandwiching the side of the solar cell module in the water flow direction between the connection member and the fixing member. In this case, the solar cell module can be fixed even if the side is fixed at two locations that are shorter than the side in the water flow direction of the solar cell module. For this reason, the arrangement | positioning space | interval of a connection member and a fixing member can be narrowed, and the stand etc. which support a solar cell module can be reduced in size.

It is a perspective view which shows the solar cell system formed by supporting the several solar cell module using the structure installation stand to which one Embodiment of the structure connection structure of this invention is applied. It is a rear view which shows the solar cell system of FIG. It is a perspective view which expands and shows the solar cell system of FIG. 1 partially. It is a perspective view which shows the base crosspiece in the mount for structure installation of FIG. It is a perspective view which shows the arm in the mount for structure installation of FIG. (A) And (b) is the perspective view and top view which show the vertical cross in the mount for structure installation of FIG. (A), (b) is the perspective view and top view which show the crosspiece member which comprises the horizontal crosspiece in the mount for structure installation of FIG. It is a perspective view which shows the other crosspiece member which comprises the horizontal crosspiece in the structure installation mount frame of FIG. It is a perspective view which shows the truss in the mount for structure installation of FIG. It is a figure which shows roughly cross-sectional shapes, such as a base crosspiece, an arm, a horizontal crosspiece, and a truss, in the structure installation mount frame of FIG. (A), (b) is the perspective view and front view which show the triangular structure which consists of a base crosspiece, an arm, and a vertical crosspiece. It is a perspective view which shows the U-shaped reinforcement metal fitting used for fixation of a base crosspiece. It is sectional drawing which shows the connection structure of an arm and a base crosspiece. It is a perspective view which shows the attachment metal fitting used for connecting and fixing a horizontal crosspiece to a vertical crosspiece. It is a perspective view which shows the state which attached the attachment bracket to the vertical rail. It is sectional drawing which shows the state which connected the horizontal crosspiece to the vertical crosspiece. (A), (b) is the perspective view and sectional drawing which show the connection structure of each crosspiece member. It is a front view which shows each truss spanned between the base crosspiece and the center horizontal crosspiece. It is a side view which shows each truss of FIG. (A), (b) is the perspective view and side view which show the connection metal fitting for connecting the base crosspiece and truss in the structure installation stand of FIG. (A), (b), (c) is the front view which shows the 1st connection metal fitting in the structure connection structure of this embodiment, and each perspective view which sees the 1st connection metal fitting from the front and back. (A), (b) is the perspective view and top view which show the reinforcement metal fitting in the structure connection structure of this embodiment. It is a perspective view which shows the 1st fixing bracket arrange | positioned at the light-receiving surface side of a solar cell module. It is a perspective view which shows the 2nd fixing metal fitting arrange | positioned at the light-receiving surface side of a solar cell module. It is sectional drawing which shows the state which attached the 1st connection metal fitting and the reinforcement metal fitting to the center horizontal crosspiece. (A) is a top view which shows the state which attached four solar cell modules up and down, right and left to the center crosspiece using the 1st connection metal fitting, the reinforcement metal fitting, and the 1st fixing metal fitting, (b) is ( It is sectional drawing which follows BB of a), (c) is sectional drawing which follows CC of (a). It is a perspective view which shows the state of FIG. 26 seeing from the light-receiving surface side of a solar cell module. It is a perspective view which shows the state which attached the solar cell module to the crosspiece using the 1st connection metal fitting, the reinforcement metal fitting, and the 2nd fixing metal fitting. It is a perspective view which shows the 2nd connection metal fitting in the structure connection structure of this embodiment. (A), (b) is the top view and side view which show the 2nd connection metal fitting of FIG. 29A. It is sectional drawing which shows the state which attached the 2nd connection metal fitting to the upper and lower horizontal rail. (A) is a top view which shows the state which attached the solar cell module of two sheets on either side to the upper and lower side crosspieces using the 2nd connection metal fitting and the 1st fixing metal fitting, (b) is (a) It is sectional drawing which follows BB of (), (c) is sectional drawing which follows CC of (a). It is a perspective view which shows the state which attached the solar cell module to the crosspiece using the 2nd connection metal fitting, the reinforcement metal fitting, and the 2nd fixing metal fitting. It is a perspective view which shows the state which fixed the base crosspiece to the concrete foundation in the construction procedure of a solar power generation system. It is a perspective view which shows the state which protruded and fixed the arm to the rear-end part of the base crosspiece in the construction procedure of a solar power generation system. It is a perspective view which shows the state which bridge | crossed and fixed the vertical beam to the front-end | tip part of a base and the upper end part of an arm in the construction procedure of a solar power generation system. It is a perspective view which shows the process of attaching a mounting bracket to a pair of T-shaped hole of a vertical beam in the construction procedure of a solar power generation system. It is a perspective view which shows the state which each constructed | assembled the triangular structure which consists of a base crosspiece, an arm, and a vertical crosspiece on the concrete foundation in the construction procedure of a solar power generation system. It is a perspective view which shows the state which attached the 1st connection metal fitting and the reinforcement metal fitting to the center crosspiece in the construction procedure of the solar power generation system. It is a perspective view which shows the state which attached the 2nd connection metal fitting and the reinforcement metal fitting to the horizontal rail of the upper side and the lower side in the construction procedure of a solar power generation system. It is a perspective view which shows the state which spanned three crosspiece members between the 1st and 2nd vertical crosses of the rightmost in the construction procedure of a solar power generation system. It is a perspective view which shows the state which spanned the crosspiece member between the 1st crosspiece member and the 3rd vertical crosspiece in the construction procedure of the solar power generation system. It is a perspective view which expands and shows FIG. 41 partially. It is a perspective view which shows the state which constructed | assembled the truss structure in the construction procedure of the solar power generation system. It is a perspective view which shows the state which attached each solar cell module up and down, left and right in the construction procedure of a solar power generation system. It is a perspective view which shows the modification of the 1st connection metal fitting for attaching a solar cell module to a center crosspiece. It is sectional drawing which shows the state which attached the 1st connection metal fitting of FIG. 45 to the center crosspiece. It is sectional drawing which shows the state which attached the solar cell module to the crosspiece using the 1st connection metal fitting and the 1st or 2nd fixing metal fitting of FIG. It is a perspective view which shows the other modification of a 1st connection metal fitting. It is a perspective view which shows the state which attached the 1st connection metal fitting of FIG. 49 to the center crosspiece.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a solar cell system that supports a plurality of solar cell modules using a structure installation stand to which an embodiment of the structure connection structure of the present invention is applied. 2 is a rear view showing the solar cell system of FIG. 1, and FIG. 3 is a partially enlarged perspective view of the solar cell system of FIG.

  This solar cell system is premised on the realization of a large-scale power plant, and a large number of solar cell modules are installed using a structure installation stand to which the structure connection structure of the present embodiment is applied.

  As shown in FIGS. 1, 2, and 3, in the structure installation stand of the present embodiment, a plurality of concrete foundations 11 are laid on the ground at equal intervals, and are respectively placed on the upper surface 11-1 of each concrete foundation 11. The base bars 12 are fixed, the base bars 12 are arranged in parallel at equal intervals, the respective arms 13 are connected to the rear ends 12-1 of the base bars 12, and the base bars 12 are erected. Each vertical beam 14 is obliquely bridged and fixed to the top end 12-2 and the upper end of each arm 13, and three horizontal beams 15 are arranged so as to be orthogonal to each vertical beam 14, and each horizontal beam is arranged. 15 are juxtaposed on each vertical rail 14. Further, assuming that the rightmost base beam 12 is the first in FIG. 1, two truss 16 are bridged between the base beam 12 and the central horizontal beam 15 for each even-numbered base beam 12, and A truss structure for reinforcing the crosspiece 15 is constructed.

  1, 2, and 3, the direction in which the concrete foundations 11 are arranged is the X direction (left-right direction), and the direction orthogonal to the X direction is the Y direction (front-rear direction).

  In the structure installation stand having such a configuration, a plurality of solar cell modules 17 are mounted side by side on the upper horizontal beam 15 and the central horizontal beam 15, and the lower horizontal beam 15 and the central horizontal beam 15 are mounted. In addition, a plurality of solar cell modules 17 are mounted in a horizontal row. Accordingly, a plurality of solar cell modules 17 are arranged in two rows on the three horizontal rails 15. In addition, six solar cell modules 17 are allocated between two vertical bars 14 adjacent to the left and right. The solar cell module 17 is obtained by holding a solar cell panel 18 in which a plurality of solar cells are arranged in a matrix direction by a frame member 19.

  Next, the concrete foundation 11, the base beam 12, the arm 13, the vertical beam 14, the horizontal beam 15, the truss 16 and the like constituting the structure installation stand will be described.

  Each concrete foundation 11 is formed by forming a mold on the ground and pouring concrete into the mold. The concrete foundations 11 are arranged at equal intervals, and their upper surfaces 11-1 are horizontal and flush with each other.

  The upper surface 11-1 of the concrete foundation 11 is used as a horizontal foundation surface, and the base rails 12 are fixed on the foundation surface at equal intervals and in parallel. Further, the base rails 12, the arms 13, and the vertical bars are fixed. The crosspiece 14, the horizontal crosspieces 15, the truss 16 and the like are assembled and connected to construct a structure installation stand. Of course, instead of the plurality of concrete foundations 11, a foundation of another structure such as a solid foundation in which concrete is uniformly poured into the entire installation area of the gantry may be applied.

  FIG. 4 is a perspective view showing the base bar 12. As shown in FIG. 4, the base crosspiece 12 is composed of a pair of side plates 12a facing each other, a main plate 12b connecting the opposite sides of each side plate 12a, and respective flanges 12c bent outward at the edges of each side plate 12a. It has a hat-shaped cross-sectional shape. Each flange 12c is cut off at the front end of the base bar 12, and the front end of the base bar 12 has a U-shaped cross-sectional shape including the side plates 12a and the main plate 12b.

  Long holes 12d are formed in the vicinity of both ends of the main plate 12b of the base bar 12, bolt holes 12e are formed in both ends of each side plate 12a, and each bolt 12c is formed in the center of each flange 12c. A hole 12f is formed.

  FIG. 5 is a perspective view and a plan view showing the arm 13. As shown in FIG. 5, the arm 13 includes a pair of side plates 13 a facing each other, a main plate 13 b that connects opposite sides of each side plate 13 a, and a hat 13 c that is bent outward at the edge of each side plate 13 a. It has a mold cross-sectional shape. At the lower end 13-2 of the arm 13, the main plate 13b and the flanges 13c are cut away, leaving only the side plates 13a. Further, the main plate 13b and the flanges 13c are also cut off at the upper end portion 13-1 of the arm 13, and only the side plates 13a are left. Further, respective bolt holes 13 d are formed at both ends of each side plate 13 a of the arm 13.

  FIGS. 6A and 6B are a perspective view and a plan view showing the vertical rail 14. As shown in FIG. 6, the vertical rail 14 is composed of a pair of side plates 14a facing each other, a main plate 14b connecting the opposing sides of the side plates 14a, and respective flanges 14c bent outward at the edges of the side plates 14a. It has a hat-shaped cross-sectional shape.

  A pair of T-shaped holes 14d are formed in the vicinity of the both ends and the center of the main plate 14b of the vertical beam 14, respectively. Further, each bolt 14e is formed at the front end of each side plate 14a, and each bolt hole 14e is also formed at a position near the rear end from the center of each side plate 14a.

  FIGS. 7A, 7 </ b> B, and 8 illustrate a crosspiece member that forms the horizontal crosspiece 15. As shown in FIG. 1, the horizontal beam 15 is extremely long in the X direction, and it is impossible to configure the horizontal beam 15 with a single member. Therefore, the horizontal beam 15 is configured by connecting a plurality of beam members. Yes.

  FIGS. 7A and 7B are a perspective view and a plan view showing the first crosspiece member 151 when the rightmost crosspiece member 151 of the horizontal crosspiece 15 in FIG. As shown in FIG. 7, the first crosspiece 151 includes a pair of side plates 15 a facing each other, a main plate 15 b that connects opposite sides of each side plate 15 a, and each ridge bent outward at the edge of each side plate 15 a. It has a hat-shaped cross section consisting of 15c. In other words, the crosspiece member 151 has a shape in which the sides extending in the longitudinal direction of the side plates 15a are connected by the main plate 15b, and the flanges 15c protrude outward from the side plates 15a.

  A pair of slits 15d and bolt holes 15e are formed at four locations on the main plate 15b of the crosspiece 151, respectively. Further, bolt holes 15f are formed at a plurality of locations on each side plate 15a, and respective elongated holes 15g are formed at both ends of each flange 15c.

  Further, the length of the crosspiece member 151 is slightly longer than the interval between the vertical crosspieces 14 shown in FIG. 1 so that the crosspiece member 151 can be bridged between the vertical crosspieces 14.

  FIG. 8 is a perspective view showing the second and subsequent beam members 152 on the left side of the first when the rightmost beam member 151 is the first in FIG. As shown in FIG. 8, the second and subsequent crosspiece members 152 also have a hat-shaped cross-sectional shape including a pair of side plates 15a, a main plate 15b, and respective flanges 15c, similarly to the crosspiece member 151 of FIG. Also, a pair of slits 15d and bolt holes 15e are formed at three locations on the main plate 15b, bolt holes 15f are formed at a plurality of locations on each side plate 15a, and each elongated hole 15g is formed at one end of each flange 15c. Is formed.

  Further, the main plate 15b and a part of each side plate 15a are cut off at one end portion 152-1 of the crosspiece member 152, leaving only the side plates 15a and the flanges 15c.

  Moreover, the length of the crosspiece member 152 is substantially the same as the interval between the vertical crosspieces 14 shown in FIG. 1, and is slightly shorter than the crosspiece member 151.

  FIG. 9 is a perspective view showing the truss 16. As shown in FIG. 9, the truss 16 includes a pair of side plates 16a facing each other, a main plate 16b connecting the opposing sides of the side plates 16a, and a flange 16c bent outward at the edge of each side plate 16a. It has a hat-shaped cross-sectional shape.

  At one end portion 16-1 of the truss 16, the main plate 16b and the flanges 16c are cut away, leaving only the side plates 16a. Further, the main plate 16b and the flanges 16c are also cut off at the other end portion 16-2 of the truss 16, leaving only the side plates 16a. Further, respective bolt holes 16 d are formed at both ends of each side plate 16 a of the truss 16.

  Here, each of the base rail 12, the arm 13, the vertical rail 14, the horizontal rail 15, and the truss 16 is bent outward at each side plate, a main plate that connects opposite sides of each side plate, and an edge of each side plate. It has a hat-shaped cross-sectional shape consisting of Moreover, all hat-shaped cross-sectional shapes are the same size. In other words, the width of the main plate and the width of the side plate are the same. Further, both are formed by cutting or punching a plated steel sheet having the same thickness and then bending the plated steel sheet. For this reason, the material and the processing apparatus can be shared, and the cost can be significantly reduced.

  Furthermore, roll forming can be applied to form a plated steel sheet into a hat-shaped cross-sectional shape. In this case, mass production can be performed quickly, and the cost can be further greatly reduced. As described above, since the solar cell system to which the structure installation platform of the present embodiment is applied is premised on the realization of a large-scale power plant, the number of solar cell modules is extremely large. The scale is also large. For this reason, the base beam 12, the arm 13, the vertical beam 14, the horizontal beam 15, and the truss 16 are used in large numbers, and in order to rapidly mass-produce them, roll forming is performed with the same cross-sectional shape and size. Processing is often applied, resulting in a significant cost reduction.

  Further, as shown in FIG. 10, the hat-shaped cross-sectional shapes of the base rail 12, the arm 13, the vertical rail 14, the horizontal rail 15, and the truss 16 are such that the distance between the side plates a increases as the distance from the main plate b increases. Is a shape in which the bending angle α of each side plate a is set. That is, each side plate a spreads on the opening side of the cross-sectional hat shape of the crosspiece, and the width of the main plate b is narrower than the opening portion of the crosspiece. For this reason, as will be described later, the construction work of stacking each side plate of the crosspiece end on the other crosspiece end becomes easy.

  Next, a triangular structure in which the base beam 12, the arm 13, and the vertical beam 14 are assembled on the concrete foundation 11 will be described.

  FIGS. 11A and 11B are a perspective view and a front view showing a triangular structure composed of a base beam 12, an arm 13, and a vertical beam 14, respectively. As shown in FIG. 11, the base beam 12 is fixed to the upper surface 11-1 of the concrete foundation 11, and the arm 13 is connected to the rear end portion 12-1 of the base beam 12 so as to stand upright. 2 and an upper end portion 13-1 of the arm 13 are fixed to the vertical beam 14 in an oblique manner, and a triangular structure including the base beam 12, the arm 13, and the vertical beam 14 is constructed.

  Two bolts 21 are projected in advance on the upper surface 11-1 of the concrete foundation 11, and these bolts 21 are inserted into the respective elongated holes 12d of the main plate 12b of the base bar 12 so as to pass through the main plate of the base bar 12. The base bar 12 is placed with the surface 12b brought into contact with the upper surface 11-1 of the concrete foundation 11. At this time, the base rail 12 and the bolts 21 can be moved along the long holes 12d (in the Y direction in FIG. 1), so that the base rail 12 is moved in the Y direction to adjust the position in the Y direction. Adjust.

  FIG. 12 is a perspective view showing a U-shaped reinforcing bracket 22 used for fixing the base rail 12. The U-shaped reinforcing metal fitting 22 has a main plate 22a and side plates 22b bent at both edges of the main plate 22a, and a bolt hole 22c is formed at the center of the main plate 22a.

  Two such U-shaped reinforcing brackets 22 are used. After the main plate 12b of the base rail 12 is placed on the upper surface 11-1 of the concrete foundation 11, the respective U-shaped reinforcing brackets 22 are inserted into the holes of the two U-shaped reinforcing brackets 22 through the respective bolts 21. Arranged inside the crosspiece 12. At this time, as shown in FIG. 13, the direction of the U-shaped reinforcing bracket 22 is set so that each side plate 22 b of the U-shaped reinforcing bracket 22 is orthogonal to each side plate 12 a of the base bar 12. Each side plate 22b of the reinforcing bracket 22 is brought into contact with the main plate 12b of the base bar 12. Then, each nut 21 is screwed and tightened, whereby the base bar 12 is fixed to the upper surface 11-1 of the concrete foundation 11.

  In this state, the side plates 22b of the U-shaped reinforcing metal fitting 22 are pressed against the main plate 12b of the base beam 12, and the main plate 12b of the base beam 12 is reinforced. Further, since the width of each side plate 22b of the U-shaped reinforcing metal fitting 22 is set to be substantially the same as the interval between the side plates 12a of the base bar 12, each side plate 12a of the base bar 12 is reinforced.

  Thereafter, the arm 13 is connected to the rear end portion 12-1 of the base bar 12 and is erected. At the lower end 13-2 of the arm 13, the main plate 13b and the flanges 13c are cut away, leaving only the side plates 13a. Moreover, as shown in FIG. 10, each side plate 12a of the base crosspiece 12 spreads on the opening side of the hat-shaped cross section. For this reason, while elastically deforming the lower end portions of the side plates 13a so as to approach each other, the lower end portions of the side plates 13a can be easily inserted and sandwiched inside the rear end portions of the side plates 12a of the base bar 12, The lower end of each side plate 13a and the rear end of each side plate 12a can be overlapped. At this time, the arm 13 is self-supporting, and the subsequent connection work of the arm 13 is facilitated.

  In a state where the arm 13 is self-supporting, a pipe 25 is inserted between the side plates 13a of the arm 13 as shown in FIG. 13, and the pipe 25, the bolt holes 13d of the side plates 13a of the arm 13 and the base rails 12 are The bolt hole 12e of the side plate 12a is aligned, and the bolt 26 is passed through the pipe 25, the bolt hole 13d of each side plate 13a of the arm 13, the bolt hole 12e of each side plate 12a of the base rail 12, and the washer. A nut 27 is screwed into and tightened to connect the lower end of each side plate 13 a of the arm 13 to each side plate 12 a of the base bar 12.

  In this way, when the bolt 26 is passed through the pipe 25, the side plates 13a of the arm 13 and the side plates 12a of the base bar 12, and the nut 27 is tightened, the pipe 25 is sandwiched between the side plates 13a and 12a. The side plates are reinforced, and the deformation of the hat-shaped cross-sectional shape (shown in FIG. 10) of the arm 13 and the base bar 12 can be prevented. Further, since the length of the pipe 25 and the distance between the side plates of the crosspiece are equal and the size of the pipe 25 is larger than that of a nut or the like, the workability by manual work is improved. Moreover, since only the pipe 25, the bolt 26, the nut 27, etc. are used one by one, the number of parts, a man-hour, and cost can be reduced.

  Next, the vertical beam 14 is bridged obliquely between the tip portion 12-2 of the base 12 and the upper end portion 13-1 of the arm 13 and fixed. Each ridge 12c is cut off at the tip of the base bar 12. Further, as shown in FIG. 10, each side plate 14a of the vertical beam 14 spreads on the opening side of the hat-shaped cross section. For this reason, the tip of each side plate 12a of the base beam 12 can be easily inserted into the inside of the tip of each side plate 14a of the vertical beam 14 while being elastically deformed so as to approach each other. The front ends of the side plates 14a can be overlapped.

  In this state, as in FIG. 13, pipes are inserted between the side plates 12 a of the base beam 12, and the pipes, the bolt holes 12 e of the side plates 12 a of the base beam 12, and the bolt holes of the side plates 14 a of the vertical beam 14. 14e is aligned, the bolt is passed through the pipe, the bolt hole 12e of each side plate 12a of the base beam 12, the bolt hole 14e of each side plate 14a of the vertical beam 14, and the washer, and a nut is screwed into one end of the bolt and tightened. The front ends of the side plates 14 a of the vertical beam 14 are connected to the side plates 12 a of the base beam 12.

  Similarly, since the main plate 13b and the flanges 13c are cut off at the upper end portion 13-1 of the arm 13 and only the side plates 13a are left, the upper end portions of the side plates 13a are elastically deformed so as to approach each other. On the other hand, the upper end portion of each side plate 13a can be inserted inside each side plate 14a of the vertical rail 14.

  In this state, as in FIG. 13, a pipe is inserted between the side plates 13 a of the arm 13, and the bolt holes 13 d of the side plates 13 a of the arm 13 and the bolt holes 14 e of the side plates 14 a of the vertical beam 14 are formed. The bolts are passed through pipes, bolt holes 13d of the side plates 13a of the arm 13, bolt holes 14e of the side plates 14a of the vertical rails 14, and washers. A nut is screwed into one end of the bolt and tightened. Are connected to the side plates 14a of the vertical beam 14 respectively.

  In this way, a triangular structure including the base beam 12, the arm 13, and the vertical beam 14 is constructed. This triangular structure can sufficiently withstand both the vertical and horizontal forces without particularly increasing the number of parts.

  Next, a structure for connecting and fixing the beam members 151 and 52 constituting the horizontal beam 15 to the vertical beam 14 will be described.

  FIG. 14 is a perspective view showing a mounting bracket 31 used for connecting and fixing the crosspiece members 151 and 52 of the horizontal crosspiece 15 to the vertical crosspiece 14. The mounting bracket 31 is formed with two screw holes 31b in the main plate 31a, side plates 31c on both sides of the main plate 31a, side plates 31d on the front and rear sides of the main plate 31a, and a double bend. Each T-shaped support piece 31e is protruded from.

  As shown in FIGS. 6 and 11, a pair of T-shaped holes 14 d are formed in the vicinity of both ends and the center of the main plate 14 b of the vertical rail 14. For each pair of T-shaped holes 14d, the mounting bracket 31 is mounted on the main plate 14b of the vertical beam 14, and the respective mounting brackets 31 are arranged at three locations near the center and both ends of the main plate 14b of the vertical beam 14.

  As shown in FIG. 15, the head of each support piece 31e of the mounting bracket 31 is inserted into the slit 14f of each T-shaped hole 14d, and each support piece 31e is moved to the engagement hole 14g of each T-shaped hole 14d. Then, the mounting bracket 31 is attached to the main plate 14b of the vertical beam 14 by hooking the heads of the respective support pieces 31e into the engagement holes 14g of the respective T-shaped holes 14d.

  1 and 16, the beam members 151 and 152 are placed on the main plate 14b of the vertical beam 14 so as to be orthogonal to the vertical beam 14, and the flanges 15c of the beam members 151 and 152 are supported by the mounting bracket 31. It arrange | positions between the heads of the piece 31e. The elongated holes 15g of the flanges 15c of the crosspieces 151 and 152 are overlapped with the screw holes 31b of the mounting bracket 31 via the T-shaped holes 14d of the main plate 14b of the vertical crosspiece 14, and the bolts 32 are attached to the crosspiece 151. , 152 are screwed into the screw holes 31b of the mounting bracket 31 via the long holes 15g of the flanges 15c and the T-shaped holes 14d of the main plate 14b of the vertical rail 14 and temporarily fixed.

  In this temporarily fixed state, the bolts 32 can be moved along the long holes 15g of the flanges 15c of the crosspieces 151 and 152. Therefore, the crosspieces 151 and 152 are moved along the long holes 15g ( (In the X direction in FIG. 1) to adjust the position in the X direction.

  Further, the mounting bracket 31 can be moved along each T-shaped hole 14d of the main plate 14b of the vertical beam 14 (in the longitudinal direction of the vertical beam 14), and the beam members 151 and 152 are also moved together with the mounting bracket 31. Can do. The distance between the three horizontal rails 15 arranged on the vertical rail 14 is adjusted by the movement of the rail members 151 and 152 in the longitudinal direction of the vertical rail 14.

  Thus, after adjusting the position of the three horizontal rails 15 in the X direction and adjusting the interval between the horizontal rails 15, the bolts 32 of the respective mounting brackets 31 are tightened so that the horizontal rails 15 are placed on the vertical rails 14. Secure to.

  In this way, the position of the horizontal rail 15 in the X direction can be adjusted. Further, as described above, the base beam 12 can be moved in the Y direction to adjust the position in the Y direction. Therefore, the position of the horizontal beam 15 can be adjusted by adjusting the position of the base beam 12. Can do. Accordingly, the position of the horizontal rail 15 in the XY direction can be adjusted. Further, the interval between the horizontal rails 15 can be adjusted. For this reason, even if there is an error in the position of each concrete foundation 11, each horizontal beam 15 can be accurately positioned by adjusting the position of each horizontal beam 15 in the XY direction and adjusting the interval between the horizontal beams 15, As a result, each solar cell module 17 mounted on each horizontal rail 15 can be accurately positioned.

  Next, the connection structure of the some crosspiece members 151 and 152 which comprise the horizontal crosspiece 15 is demonstrated.

  The crosspiece member 151 shown in FIG. 7 is the first rightmost crosspiece member of the horizontal crosspiece 15 in FIG. 1, and is bridged between the vertical crosspieces 14 of the first and second concrete foundations 11 in FIG. It is fixed to these vertical bars 14 using mounting brackets 31.

  A crosspiece member 152 shown in FIG. 8 is a second or subsequent crosspiece member of the horizontal crosspiece 15 in FIG. 1, and is bridged between the left end portion of the first crosspiece member and the next vertical crosspiece 14. . For example, the second cross member 152 is bridged between the left end portion of the first cross member 151 and the third vertical cross member 14, and the third cross member 152 is the left end portion of the second cross member 152. And the fourth vertical beam 14, and similarly, the nth beam member 152 extends between the left end of the (n−1) th beam member 152 and the (n + 1) th vertical beam 14. Passed. The second and subsequent crosspieces 152 are also fixed to the respective vertical crosspieces 14 using the mounting bracket 31.

  As shown in FIGS. 7A and 7B, the main plate 15b is not cut off at either end of the first crosspiece 151. Further, as shown in FIG. 8, the main plate 15b and a part of each side plate 15a are partly cut off at one end portion 152-1 of the second and subsequent crosspiece members 152, leaving only the side plates 15a and the flanges 15c. . As shown in FIGS. 1 and 3, one end 152-1 of each of the second and subsequent crosspiece members 152 is connected to the left end of the first crosspiece member.

  For example, as shown in FIG. 17A, the left end of each side plate 15 a of the first cross member 151 is inserted and sandwiched inside one end of each side plate 15 a of the second cross member 152. As shown in FIG. 10, each side plate 15a spreads out on the side of the hat-shaped cross-sectional opening of the horizontal beam 15 (the beam members 151 and 152), so one side end portion of each side plate 15a of the second beam member 152 Is simply put on the left end of each side plate 15a of the first crosspiece 151, and the left end of each first side plate 15a is inserted and sandwiched inside one end of each second side plate 15a. Can do.

  In this state, as shown in FIG. 17 (b), the pipe 25 is inserted between the side plates 15a of the first crosspiece member 151, the pipe 25, the bolt holes 15e of the side plates 15a of the first crosspiece member 151, The bolt holes 15e of the side plates 15a of the second cross member 152 are aligned, the bolts 26 are connected to the pipes 15, the bolt holes 15e of the side plates 15a of the first cross member 151, and the side plates of the second cross member 152. The nut 27 is screwed into one end of the bolt 26 and tightened through the bolt hole 15e and the washer 15a, and each side plate 15a of the second beam member 152 is connected to each side plate 15a of the first beam member 151.

  In addition, one side end portion of each side plate 15a of the third cross member 152 is put on the left end portion of each side plate 15a of the second cross member 151, and the second end is placed inside the one end portion of each third side plate 15a. The left end of each side plate 15a is inserted and sandwiched, and the third side plate 15a is connected to the second side plate 15a by using a pipe 25, a bolt 26, a nut 27, and a washer.

  Similarly, the left end of each side plate 15a of the (n-1) th cross member 151 is inserted and sandwiched inside one end of each side plate 15a of the nth cross member 152, and the pipe 25, bolt 26, nut 27 is inserted. The nth side plate 15a is connected to the (n-1) th side plate 15a by using a washer.

  In this way, one long horizontal beam 15 is configured by connecting a plurality of beam members 151 and 152.

  As is apparent from FIGS. 17A and 17B, the side plates 15a on both sides have a double structure at the connection location of the crosspiece members 151 and 152, and the strength thereof is improved. Moreover, even if the number of the crosspiece members 151 and 152 is increased in order to extend the horizontal crosspiece 15, the construction process is easy because only the same connection process is repeated.

  In addition, since the main plate 15b is cut off at the one end portion 152-1 of the crosspiece member 152, the main plate 15b of each crosspiece member is separated at the connection portion of each crosspiece member. For this reason, the main plates 15b of the cross members do not interfere with each other, and the end portions of the cross members are easily connected.

  Next, a truss structure for reinforcing the central cross rail 15 will be described.

  Here, as shown in FIG. 1, a plurality of solar cell modules 17 are mounted in two rows on the three horizontal rails 15, so that the central horizontal rail 15 has upper and lower horizontal rails. A load greater than 15 is applied. For example, when attention is paid to the upper and lower two solar cell modules 17 on the rightmost side in FIG. 1, the load of 0.5 solar cell modules 17 is applied to the upper and lower horizontal rails 15 respectively. It can be generally considered that a load of 1.0 solar cell modules 17 is applied to the crosspiece 15. Therefore, a load approximately twice as large as that of the upper and lower horizontal rails 15 is applied to the central horizontal rail 15.

  Therefore, if the strength of the three horizontal rails 15 is set according to the small load applied to the upper and lower horizontal rails 15 and each horizontal rail 15 is made common, the weight and cost of each horizontal rail 15 are reduced. Can be reduced. However, since the strength of the central crosspiece 15 is insufficient, two truss 16 are bridged between the base crosspiece 12 and the central crosspiece 15 to reinforce the central crosspiece 15 as shown in FIG. The truss structure is built.

  In other words, the strength of the three horizontal rails 15 is set based on the small load applied to the upper and lower horizontal rails 15 by the structure in which only the middle one of the horizontal rails 15 is reinforced. The weight of each crosspiece 15 is reduced and the cost is reduced.

  In addition, in this embodiment, although the solar cell module 17 was arranged in 2 rows, you may arrange 3 or more rows. In this case, the horizontal rails other than the upper horizontal rail and the lower horizontal rail correspond to the central horizontal rail, and a truss is attached.

  Further, assuming that the rightmost base beam 12 is the first in FIG. 1, a truss structure is provided for each even-numbered base beam 12. As a result, the crosspiece members 151 and 152 of the central crosspiece 15 are reinforced by only one truss 16, and the number of trusses 16 is reduced, thereby preventing the construction work from being complicated and the cost from increasing.

  FIGS. 18 and 19 are a front view and a side view showing the trusses 16 spanned between the base rail 12 and the central horizontal rail 15. As apparent from FIG. 19, when the trusses 16 are viewed from the side, the trusses 16 are arranged perpendicular to the solar cell module 17. This is to prevent the truss 16 from being overturned by the load or wind pressure of the solar cell module 17. Further, in order to arrange each truss 16 perpendicular to the solar cell module 17, it is necessary to support each truss 16 obliquely with respect to the base beam 12. For this reason, the base beam 12 and the two trusses 16 are required. Each side plate 31b of the connection fitting 31 for connecting is inclined.

  FIGS. 20A and 20B are a perspective view and a side view showing a connection fitting 31 for connecting the base bar 12 and the two trusses 16, respectively. The connection fitting 31 has a main plate 31a and side plates 31b bent at both edges of the main plate 31a, and each side plate 31b is inclined with respect to the main plate 31a. Two long holes 31c are formed in the main plate 31a, and bolt holes 31d and screw holes 31e are formed in each side plate 31b.

  The main plate 31a of the connection fitting 31 is placed in the approximate center of each rod 12c of the even-numbered base bar 12, and the two long holes 31c of the main plate 31a are overlapped with the bolt holes 12f of each rod 12c, and two bolts are attached. The nuts are screwed into one end of these bolts through the elongated holes 31c of the main plate 31a and the bolt holes 12f of the flanges 12c, and the connection fittings 31 are temporarily fixed on the flanges 12c of the base bar 12.

  In this temporarily fixed state, since each bolt is passed through each long hole 31c of the main plate 31a of the connection fitting 31, the connection fitting 31 is moved along each long hole 31c (in the X direction in FIG. 1). be able to.

  After temporarily fixing the connection fitting 31, both ends of the two trusses 16 are connected to the connection fitting 31 and the central crosspiece 15. At this time, the end portions (one end portion 16-1 in FIG. 9) of the side plates 16a of the two trusses 16 and the side plates 31b of the connection fitting 31 are overlapped with each other. Then, pipes are inserted between the innermost side plates facing each other, and the pipes, the bolt holes 16d of the side plates 16a of the trusses 16 and the holes 31d and 31e of the side plates 31b of the connection fitting 31 are aligned. The bolt is passed through the pipe, the bolt hole 16d of each side plate 16a of the two trusses 16, the bolt hole 31d of the side plate 31b of the connection fitting 31, and the washer, and one end of the bolt is threaded 31e of the side plate 31b of the connection fitting 31. Then, the ends of the two trusses 16 are temporarily fixed to the connection fitting 31.

  Further, for both of the two trusses 16, the end portions of the side plates 16a of the truss 16 are elastically deformed so that the end portions (the other end portion 16-2 in FIG. 9) approach each other. The portion is inserted inside the side plate 15a of the crosspiece member 151 or 152 of the central horizontal crosspiece 15. Then, a pipe is inserted between the side plates 16a of the truss 16, the bolt holes 16d of the side plates 16a of the truss 16 and the bolt holes 15e of the side plates 15a of the crosspieces 151 or 152 are aligned, Pipes, bolt holes 16d of the side plates 16a of the truss 16, bolt holes 15e of the side plates 15a of the crosspiece members 151 or 152, and washers are screwed into one end of the bolts, and the ends of the truss 16 are connected to the crosspieces. Temporarily fix to the member 151 or 152.

  When attaching each truss 16 as described above, the end of each side plate 16a of each truss 16 (the other in FIG. 9) is moved while the connection fitting 31 is moved along each elongated hole 31c (in the X direction in FIG. 1). It is necessary to adjust the position of the end portion 16-2) to align the bolt hole 16d at the end portion of each side plate 16a with the bolt hole 15e of each side plate 15a of the crosspiece member 151 or 152. As described above, the crosspieces 151 and 152 of the crosspiece 15 are moved in the X direction to adjust the position of the crosspiece 15 in the X direction. This is because it is necessary to shift the position of each truss 16 by the position adjustment.

  After connecting both ends of each truss 16 to the connection fitting 31 and the central crosspiece 15, each bolt for connecting both ends of each truss 16 is tightened to fix each truss 16.

  Next, the structure connection structure of this embodiment, that is, the structure for connecting and fixing the solar cell module 17 on the cross rail 15 will be described.

  Here, as is clear from FIG. 1, the central horizontal beam 15 supports the ends of the upper and lower solar cell modules 17, and the upper and lower horizontal beams 15 are the upper or lower solar cell module 17. The end of the is supported. For this reason, in this embodiment, the connection structure of the solar cell module 17 is different between the central horizontal rail 15 and the upper and lower horizontal rails 15, and these connection structures will be described separately.

  21 (a), (b), and (c) are front views showing a first connection fitting for connecting and fixing the solar cell module 17 to the central crosspiece 15 and the first connection fitting from the front and back sides. It is each perspective view seen and shown. The first connection fitting 41 has a side plate 41a and a main plate 41b bent at the upper edge of the side plate 41a. The main plate 41b is formed with a hanging piece 41e that is bent at the central portion of one side of the main plate 41b and a protruding portion 41f that is bent and raised at both ends of the one side of the main plate 41b. Further, a screw hole 41d is formed in the approximate center of the main plate 41b, and a bolt hole 41c is formed in the side plate 41a. The height of the side plate 41a is substantially equal to the height of the side plate 15a of the horizontal rail 15.

  22 (a) and 22 (b) are a perspective view and a plan view showing the reinforcing metal fitting used in the structure connecting structure of the present embodiment and used together with the first connecting metal fitting 41 of FIG. The reinforcing metal fitting 42 has a hat-shaped cross-sectional shape including a pair of side plates 42a facing each other, a main plate 42b connecting one side of each side plate 42a, and a flange 42c that is bent at the edge of each side plate 42a and protrudes outward. The width is set so as to be fitted inside the horizontal rail 15.

  Each side plate 42a of the reinforcing metal fitting 42 is formed with a screw hole 42d, and each flange 42c is formed with a long hole 42e.

  FIG. 23 is a perspective view showing the first fixing fitting disposed on the light receiving surface side of the solar cell module 17. The first fixing fitting 43 is formed by forming a protruding piece 43b bent downward at the front and rear end portions of the pressing plate 43a and forming a bolt hole 43c at the central portion of the pressing plate 43a.

  FIG. 24 is a perspective view showing the second fixing bracket disposed on the light receiving surface side of the solar cell module 17. The second fixing bracket 44 has a protruding piece 44b bent downward at the front and rear end portions of the pressing plate 44a, a bolt hole 44c formed at the central portion of the pressing plate 44a, and perpendicular to one end edge of the pressing plate 44a. A standing wall 44d is formed, and the bottom edge 44e is formed by bending the lower edge of the standing wall 44d.

  All of the first connection fitting 41, the reinforcing fitting 42, and the first and second fixing fittings 43 and 44 are made of steel plates that are sufficiently thicker than the base rail 12, the arm 13, the vertical rail 14, the horizontal rail 15, and the truss 16. It has a high strength.

  Here, two first connection fittings 41 are arranged in pairs at the positions where the pair of slits 15d and bolt holes 15e are formed in the main plate 15b of the crosspieces 151 and 152 of the central crosspiece 15 as shown in FIG. As described above, the side plates 41a of the two first connection fittings 41 are stacked on the side plates 15a of the horizontal rails 15, and the main plates 41b of these first connection fittings 41 are directed so as to protrude outward from the horizontal rails 15, Each protrusion 41f of the first connection fitting 41 protrudes upward from the main plate 15b of the cross rail 15.

  Similarly to the first connection fitting 41, the reinforcing fitting 42 is also arranged at a position where the pair of slits 15 d and the bolt hole 15 e are formed in the main plate 15 b of the central transverse rail 15 and is fitted inside the lateral rail 15. As shown in FIG. 25, each side plate 42a of the auxiliary metal fitting 42 is overlaid on the lower part of each side plate 15a of the horizontal rail 15, and each bar 42c of the auxiliary metal fitting 42 is overlapped with each bar 15c of the horizontal rail 15.

  Then, as shown in FIG. 25, two bolts are connected to each side plate 42a of the auxiliary fitting 42 through the bolt holes 41c of each side plate 41a of the first connection fitting 41 and the bolt holes 15f of each side plate 15a of the horizontal rail 15. Each screw hole 42d is screwed and tightened. For this reason, in the site | part of the 1st connection metal fitting 41, a side plate and a collar become a double or triple structure, and the intensity | strength in this site | part becomes high.

  Incidentally, since the first crosspiece 151 on the rightmost side of the central crosspiece 15 in FIG. 1 has a pair of slits 15d and bolt holes 15e formed in four places as shown in FIG. Two first connection fittings 41 are provided at each location, and one auxiliary fitting 42 is provided at each of the four locations. Further, as shown in FIG. 8, a pair of slits 15d and bolt holes 15e are formed in three places in the second and subsequent crosspiece members 151 of the horizontal crosspiece 15. Therefore, the first connection fitting 41 is provided in these three places. Are provided two by two, and one auxiliary metal fitting 42 is provided at each of the three locations.

  In addition, at both ends of the crosspiece member 151 shown in FIG. 7, the elongated holes 42e of the flanges 42c of the auxiliary metal fitting 42 overlap the elongated holes 15g of the flanges 15c of the crosspiece member 151. Further, also at one end portion of the crosspiece member 152 shown in FIG. 8, the long holes 42 e of the respective flanges 42 c of the auxiliary metal fitting 42 overlap the long holes 15 g of the respective flanges 15 c of the crosspiece member 152. Therefore, the elongated holes 15g of the flanges 15c of the crosspieces 151 and 152 are not blocked by the flanges 42c of the auxiliary metal fitting 42, and the lengths of the elongated holes 15g are not limited. The movement of the crosspiece members 151 and 152 along the shape hole 15g (X direction in FIG. 1) is not hindered.

  FIG. 26A is a plan view showing a state in which four solar cell modules 17 are attached to the central cross rail 15 using the first connection fitting 41, the reinforcement fitting 42, and the first fixing fitting 43. It is. Moreover, FIG.26 (b) is sectional drawing which follows BB of Fig.26 (a), and is sectional drawing which follows FIG.25 (c) CC. Further, FIG. 27 is a perspective view showing the state of FIG. 26 as viewed from the light receiving surface side of the solar cell module.

  26 (a), (b), and (c), the frame member 19 of each of the lower left and right solar cell modules 17 is inserted between the protrusions 41f of the lower first connection fitting 41, and the horizontal rails are inserted. It is placed on 15 main plates 15b. At this time, each solar cell module 17 is connected to the main plate 15b of the horizontal rail 15 until the inner edge 19a of the frame member 19 of each of the lower left and right solar cell modules 17 comes into contact with each protrusion 41f of the lower first connection fitting 41. The upper and lower positions of each solar cell module 17 are positioned by shifting upward.

  Then, as shown in FIGS. 26 (a), (b), and FIG. 27, the projection pieces 43 b of the first fixing bracket 43 are inserted between the frame members 19 of the lower left and right solar cell modules 17 to The frame members 19 of the battery modules 17 are spaced apart by a fixed interval, and at the same time, the bottom projections 19b of the frame members 19 of the solar cell modules 17 are connected to the projections 41f of the first connection fitting 41 as shown in FIG. The left and right positions of the solar cell modules 17 are positioned.

  Subsequently, the bolt 45 is screwed into the screw hole 41d of the main plate 41 of the first connection fitting 41 via the gap between the bolt hole 43c of the first fixing fitting 43 and the frame member 19 of each of the lower left and right solar cell modules 17 and tightened. Include. As a result, the frame members 19 of the lower left and right solar cell modules 17 are sandwiched and fixed between the first fixture 43 and the main plate 15b of the horizontal rail 15.

  Similarly, the frame members 19 of the upper left and right solar cell modules 17 are placed between the protrusions 41 f of the upper first connection fitting 41 and placed on the main plate 15 b of the horizontal rail 15. At this time, the frame members 19 of the upper left and right solar cell modules 17 are brought into contact with the frame members 19 of the lower left and right solar cell modules 17 to position the vertical positions of the upper left and right solar cell modules 17. And each protrusion piece 43b of the 1st fixing bracket 43 is inserted between the frame members 19 of each of the upper left and right solar cell modules 17, and the bottom protrusion 19b of the frame member 19 of each solar cell module 17 is connected to the first connection bracket 41. The left and right positions of the solar cell modules 17 are positioned in contact with the projections 41f.

  Subsequently, the bolt 45 is screwed into the screw hole 41d of the main plate 41 of the first connection fitting 41 through the gap between the bolt hole 43c of the first fixing fitting 43 and the frame member 19 of each of the upper left and right solar cell modules 17 and tightened. The frame members 19 of the upper left and right solar cell modules 17 are fixed.

  On the other hand, the second fixture 43 is used to fix the upper and lower two solar cell modules 17 on the right or left side in FIG.

  As shown in FIG. 28, the frame member 19 of the rightmost or leftmost solar cell module 17 is placed between the protrusions 41 f of the first connection fitting 41 and placed on the main plate 15 b of the horizontal rail 15. Then, the bottom piece 44e of the second fixing bracket 44 is placed on the main plate 15b of the horizontal rail 15, and each protruding piece 44b of the second fixing bracket 44 is pressed against the frame member 19 of the solar cell module 17, so that the solar cell module 17 The bottom projection 19b of the frame member 19 is brought into contact with the projection 41f of the first connection fitting 41, and the left and right positions of the solar cell module 17 are positioned.

  Then, the bolt 45 is screwed into the screw hole 41 d of the main plate 41 of the first connection fitting 41 through the bolt hole 44 c of the second fixing fitting 44 and tightened. As a result, the frame member 19 of the solar cell module 17 is sandwiched and fixed between the second fixing bracket 44 and the main plate 15 b of the horizontal rail 15.

  Here, as described above, in the portion of the first connection fitting 41 and the auxiliary fitting 42, the side plate 15a of the cross rail 15, the side plate 41a of the first connection fitting 41, and the side plate 42a of the auxiliary fitting 42 are double or three. In addition, since the flange 15c of the horizontal rail 15 and the flange 42c of the auxiliary bracket 42 are doubled, the strength at this portion is increased. Further, since the main plate 15b of the crosspiece 15 and the side plates 15a and the main plate 42 of the auxiliary metal fitting 42 have a square closed structure, this also increases the strength at the portion.

  Further, when a strong wind pressure is applied to the front and back surfaces of the solar cell module 17, the central portion of the solar cell module 17 is bent by the wind pressure, and the frame member 19 of the solar cell module 17 is removed from the locking portion due to the influence. A strong force is generated. However, in the present embodiment, even if wind pressure is applied to the front and back surfaces of the solar cell module 17, the projection 41 f of the first connection fitting 41 is caught inside the frame member 19 of the solar cell module 17, and the frame of the solar cell module 17. Since the member 19 is sandwiched between the first connection fitting 41 and the first or second fixing fitting 43, 44, the frame member 19 of the solar cell module 17 is not detached.

  Further, the set of two first connection fittings 41 is disposed so as to face each other via the horizontal rail 15, and is arranged vertically symmetrically with respect to the center line S (shown in FIG. 26A) of the horizontal rail 15. . Then, the bolts 45 for fixing the upper and lower solar cell modules 17 are screwed into the screw holes 41 d of the first connection fittings 41, and the bolts 45 are also vertically moved with respect to the center line S of the horizontal rail 15. They are arranged symmetrically.

  A force is generated at the position of the protrusion 41f of the first connection fitting 41 and the first or second fixing fitting 43, 44 due to the influence of the wind pressure. If this layout design is mistaken, this force is applied to the horizontal rail 15 or the solar cell module 17. A force acts so as to twist the frame member 19, and these are deformed. However, as shown in FIG. 26, the protrusions 41 of the pair of first connection fittings 41 are on a straight line parallel to the bolt 45 of the first or second fixing fitting 43, 44 and the center line S of the crosspiece 15. Since the bolts 45 and the projections 41f of the first or second fixing brackets 43 and 44 are arranged vertically symmetrically with respect to the center line S of the horizontal rail 15, the force due to the influence of wind pressure is lateral. It does not act to twist the crosspiece 15 or the frame member 19 of the solar cell module 17, and these do not deform.

  In order to prevent this twisting force, it is most preferable to arrange the protrusions 41f of the two first connection fittings 41 and the bolts 45 of the first or second fixing fittings 43 and 44 on the center line S of the horizontal rail 15. Although it is desirable, since the frame members 19 of the upper and lower solar cell modules 17 cannot be fixed together on the center line S of the horizontal rail 15 as is apparent from FIG. 26, the protruding portions 41 f of the two first connection fittings 41. The bolts 45 of the first or second fixing brackets 43 and 44 are provided at positions symmetrical with respect to the center line S of the horizontal rail 15.

  Further, since each bolt 45 is screwed into the screw hole 41 d of the first connection fitting 41 that is sufficiently thicker than the horizontal rail 15, each bolt 45 is not pulled out by the wind pressure applied to the solar cell module 17.

  That is, each of the projections 41f and the bolts for forming a double or triple structure and a closed structure by the horizontal rail 15, the first connection fitting 41, and the auxiliary fitting 42, and for fixing the upper and lower solar cell modules 17 to each other. 45 is arranged symmetrically with respect to the center line S of the horizontal beam 15 and each bolt 45 is screwed into the screw hole 41d of the sufficiently thick first connection fitting 41, so that the load resistance of the horizontal beam 15 is greatly increased. Has improved.

  FIG. 29A is a perspective view showing a second connection fitting disposed on the back side of the solar cell module 17 in the upper and lower horizontal rails 15. FIGS. 29B (a) and 29 (b) are a plan view and a side view showing the second connection fitting of FIG. 29A. The second connection fitting 51 is a hat-type comprising a pair of side plates 51a facing each other, a main plate 51b connecting the opposing sides of each side plate 51a, and a flange 51c that is bent at the edge of each side plate 51a and protrudes outward. It has a cross-sectional shape and is set to a shape and size that fits inside the horizontal rail 15. In other words, the second connection fitting 51 has a shape in which the sides extending in the longitudinal direction of the side plates 51a are connected by the main plate 51b, and the flanges 51c protrude outward from the side plates 51a.

  L-shaped cuts are respectively formed from both ends of the main plate 51b of the second connection fitting 51 to the inside, and the insides of these L-shaped cuts are raised to form projections 51f. Further, each side plate 51a of the second connection fitting 51 is formed with a screw hole 51d, a screw hole 51e is formed on the center line of the main plate 51b, and each elongated hole 51g is formed in each flange 51c. .

  The second connection fitting 51 is formed by processing a sufficiently thick steel plate similarly to the first connection fitting 41, the reinforcing fitting 42, and the first and second fixing fittings 43 and 44, and has high strength.

  Such second connection fittings 51 are respectively arranged at positions where the pair of slits 15d and bolt holes 15e are formed in the main plate 15b of the upper and lower horizontal rails 15 and are fitted inside the horizontal rails 15.

  As shown in FIG. 30, when the second connection fitting 51 is fitted inside the horizontal rail 15, the projections 51 f of the main plate 51 b of the second connection fitting 51 are formed from the pair of slits 15 d of the main plate 15 b of the horizontal rail 15. Projects upward.

  Further, the side plates 51 a of the second connection fitting 51 overlap the side plates 15 a of the horizontal rail 15, the main plate 51 b overlaps the main plate 15 b of the horizontal rail 15, and the flanges 51 c overlap the flanges 15 c of the horizontal rail 15.

  In this state, the two bolts are respectively screwed and tightened into the screw holes 51d of the side plates 51a of the second connection fitting 51 through the bolt holes 15f of the side plates 15a of the horizontal rail 15. For this reason, in the site | part of the 2nd connection metal fitting 51, a main board, a side board, and a collar become a double structure, and the intensity | strength in this site | part becomes high.

  Incidentally, since the rightmost first rail member 151 of the upper and lower horizontal rails 15 in FIG. 1 has a pair of slits 15d and bolt holes 15e formed in four places as shown in FIG. The second connection fittings 51 are provided at these four locations. Moreover, since the pair of slits 15d and the bolt holes 15e are formed in three places in the second and subsequent crosspiece members 151 of the horizontal crosspiece 15 as shown in FIG. 8, the second connection fitting 51 is provided in these three places. Is provided.

  In addition, at both ends of the crosspiece member 151 shown in FIG. 7, the long holes 51 g of the flanges 51 c of the second connection fitting 51 overlap the long holes 15 g of the hooks 15 c of the crosspiece member 151. Further, also at one end portion of the crosspiece member 152 shown in FIG. 8, the long holes 51 g of the flanges 51 c of the second connection fitting 51 overlap the long holes 15 g of the flanges 15 c of the crosspiece member 152. Therefore, the elongated holes 15g of the flanges 15c of the crosspieces 151, 152 are not blocked by the flanges 51c of the second connection fitting 51, and the length of the elongated holes 15g is not limited. The movement of the crosspiece members 151 and 152 along the long hole 15g (X direction in FIG. 1) is not obstructed.

  FIG. 31A is a plan view showing a state in which the left and right solar cell modules 17 are attached to the upper and lower horizontal rails 15 using the second connection fitting 51 and the first fixing fitting 43. . Moreover, FIG.31 (b) is sectional drawing which follows BB of Fig.31 (a), and is sectional drawing which follows CC of FIG.31 (c).

  31 (a), 31 (b), and 31 (c), the frame member 19 of each of the left and right solar cell modules 17 is inserted between the projections 51f of the second connection fitting 51, and on the main plate 15b of the horizontal rail 15. Placed on. Then, the protruding pieces 43b of the first fixing bracket 43 are inserted between the frame members 19 of the left and right solar cell modules 17, and the frame members 19 of the solar cell modules 17 are separated by a predetermined interval. The bottom protrusion 19b of the frame member 19 of the battery module 17 is brought into contact with each protrusion 51f of the second connection fitting 51, and the left and right positions of the solar cell modules 17 are positioned.

  Subsequently, the main plate 51 of the second connection fitting 51 is connected to the bolt 45 through the bolt hole 43c of the first fixing fitting 43, the gap between the frame members 19 of each solar cell module 17, and the bolt hole 15e of the main plate 15b of the horizontal rail 15. And screwed into the screw hole 51e. As a result, the frame member 19 of each solar cell module 17 is sandwiched and fixed between the first fixing fitting 43 and the main plate 15b of the horizontal rail 15.

  In general, in consideration of workability, the connection fitting is arranged so as to support the lower side of the lower solar cell module 17. However, since the first connection fitting 41 used above is positioned in the vertical direction at the central crosspiece 15, the fixing location by the second connection fitting 51 is on the side of the solar cell module 17 in the water flow direction. Good. For this reason, it becomes possible to make the space | interval of the connection metal fittings 41 and 51 shorter than the side of the water flow direction of the solar cell module 17 without impairing workability. The same applies to the distance between the connection fittings 41 and 51 of the upper solar cell module 17 that is positioned by being supported by the lower solar cell module 17. As a result, it is possible to make the vertical rail 14 shorter than the length of the upper and lower solar cell modules 17 in the water flow direction, and it is possible to reduce the size of the gantry.

  Moreover, the 2nd fixing metal fitting 43 is used in order to fix the upper and lower two solar cell modules 17 on the rightmost side or the left side in FIG. As shown in FIG. 32, the frame member 19 of the rightmost or leftmost solar cell module 17 is placed between the protrusions 51 f of the second connection fitting 51 and placed on the main plate 15 b of the horizontal rail 15. Then, the bottom piece 44e of the second fixing bracket 44 is placed on the main plate 15b of the horizontal rail 15, and each protruding piece 44b of the second fixing bracket 44 is pressed against the frame member 19 of the solar cell module 17, so that the solar cell module 17 The bottom protrusion 19b of the frame member 19 is brought into contact with the protrusion 51f of the second connection fitting 51, the left and right positions of the solar cell module 17 are positioned, and the bolt 45 is connected to the bolt hole 43c and the horizontal rail 15 of the second fixing fitting 44. And screwed into the screw hole 51e of the main plate 51 of the second connection fitting 51 through the bolt hole 15e of the main plate 15b. As a result, the frame member 19 of the solar cell module 17 is sandwiched and fixed between the second fixing bracket 44 and the main plate 15 b of the horizontal rail 15.

  Here, since the side plate, the main plate, and the flange have a double structure in the portion of the second connection fitting 51 as described above, the strength in this portion is increased.

  Further, when a strong wind pressure is applied to the front and back surfaces of the solar cell module 17, the central portion of the solar cell module 17 is bent by the wind pressure, and the frame member 19 of the solar cell module 17 is removed from the locking portion due to the influence. A strong force is generated. However, in the present embodiment, even if wind pressure is applied to the front and back surfaces of the solar cell module 17, the protrusion 51 f of the second connection fitting 51 is caught inside the frame member 19 of the solar cell module 17, and the frame of the solar cell module 17. Since the member 19 is sandwiched between the second connection fitting 51 and the first or second fixing fitting 43, 44, the frame member 19 of the solar cell module 17 is not detached.

  Further, a bolt hole 15e is formed on the center line S (shown in FIG. 31A) of the main plate 15b of the horizontal rail 15, and a screw hole 51e is formed on the center line S of the main plate 51b of the second connection fitting 51. ing. Then, a bolt 45 for fixing the solar cell module 17 is screwed into the screw hole 51e through the bolt hole 15e, and the bolt 45 is centerline S of the main plate 15b of the horizontal rail 15 and the main plate 51b of the second connection fitting 51. Is placed on top.

  Thus, the protrusion 51f of the second connection fitting 51 is generally disposed on the center line S of the horizontal rail 15, and the bolts 45 of the first or second fixing bracket 43, 44 are also on the center line S of the horizontal rail 15. Since they are arranged, the force due to the influence of the wind pressure does not act so as to twist the crosspiece 15 or the frame member 19 of the solar cell module 17, and these do not deform.

  In order to prevent this twisting force, it is ideal that the protrusion 51f and the bolt 45 of the second connection fitting 51 are on the center line S of the horizontal rail 15. However, the strength of the second connection fitting 51 is considered. Therefore, it is necessary to secure a distance between the L-shaped cut area for forming the protrusion 51f from the side plate 51a and the protrusion 51f is provided at a position slightly shifted from the center line S. However, since the bolt 45 of the first or second fixture 43, 44 is on the center line S of the horizontal rail 15, the influence of the twisting force is minimized.

  In addition, since the bolt 45 is screwed into the screw hole 51e of the second connection fitting 51 that is sufficiently thicker than the horizontal rail 15, the bolt 45 is not pulled out by wind pressure applied to the solar cell module 17.

  That is, the horizontal beam 15 and the second connection fitting 51 constitute a double structure, and the protrusion 51f and the bolt 45 for fixing the solar cell module 17 are arranged on the center line S of the horizontal beam 15, and the bolt Since 45 is screwed into the screw hole 51e of the sufficiently thick second connection fitting 51, the load resistance of the crosspiece 15 is greatly improved.

  Next, the construction procedure of the photovoltaic power generation system of FIG. 1 will be described with reference to FIGS. 33 to 44.

  First, as shown in FIG. 1, a plurality of concrete foundations 11 are formed on the ground at equal intervals, and their upper surfaces 11-1 are horizontal and flush with each other to form a horizontal foundation surface.

  As shown in FIG. 33, the base bar 12 is fixed to the upper surface 11-1 of the concrete foundation 11. At this time, as described above, the two bolts 21 on the upper surface 11-1 of the concrete foundation 11 are inserted into the respective elongated holes 12d of the main plate 12b of the base beam 12, and the base beam 12 is placed. The crosspiece 12 is moved in the Y direction to adjust the position in the Y direction. Then, the respective U-shaped reinforcing brackets 22 are arranged inside the base bar 12 through the respective bolts 21 through the holes of the two U-shaped reinforcing brackets 22, and the respective nuts are screwed into the respective bolts 21 and tightened. And fix the base bar 12.

  As shown in FIG. 34, the lower end portion of each side plate 13a of the arm 13 is inserted into the rear end portion inside the base rail 12 and sandwiched between them, so that the arm 13 is self-supported. As described above, the pipe is connected between the side plates 13a of the arm 13. The bolt is passed through the pipe, the bolt hole 13d of each side plate 13a of the arm 13, the bolt hole 12e of each side plate 12a of the base bar 12, and the washer, and a nut is screwed into one end of the bolt and tightened. The lower ends of the 13 side plates 13 a are fixed to the side plates 12 a of the base bar 12.

  As shown in FIG. 35, a vertical beam 14 is obliquely bridged and fixed between the tip of the base 12 and the upper end of the arm 13. The pipe 12, the bolt, the washer, the nut, and the like are also connected between the tip of the base 12 and the vertical beam 14 and between the upper end of the arm 13 and the vertical beam 14.

  As shown in FIG. 36, the mounting bracket 31 is attached to a pair of T-shaped holes 14d formed in the main plate 14b of the vertical beam 14. Since a pair of T-shaped holes 14d are formed at three locations on the main plate 14b of the vertical beam 14, the mounting bracket 31 is attached to each location.

  As shown in FIG. 37, for each concrete foundation 11, a triangular structure including a base beam 12, an arm 13, and a vertical beam 14 is constructed. In addition, for each of the vertical rails 14, mounting brackets 31 are attached to three locations on the main plate 14 b.

  As shown in FIG. 38, the first connection fitting 41 and the reinforcement fitting 42 are attached to the crosspiece members 151 and 152 that become the horizontal crosspiece 15 at the center.

  As shown in FIG. 39, the 2nd connection metal fitting 51 is attached to the crosspieces 151 and 152 used as the upper and lower horizontal crosspieces 15. As shown in FIG.

  As shown in FIG. 40, three crosspiece members 151 are bridged between the vertical crosspieces 14 of the first and second concrete foundations 11 on the rightmost side, and each crosspiece member 151 is attached to the vertical crosspiece 14 for each vertical crosspiece 14. It is fixed with three mounting brackets 31. As shown in FIG. 38, the central crosspiece 151 is provided with the first connection fitting 41 and the reinforcing fitting 42, and the upper and lower crosspieces 151 are provided with the second connection fitting 51 as shown in FIG. It is attached. At this time, each crosspiece 151 is moved in the X direction to adjust the position in the X direction. Further, the interval between the crosspieces 151 is adjusted.

  As shown in FIG. 41, each crosspiece member 151 is slightly longer than the interval between the vertical crosspieces 14, and the left end portion of each crosspiece member 151 extends beyond the second vertical crosspiece 14.

  As shown in FIGS. 41 and 42, the one end 152-1 of the second lower beam member 152 is placed on the left end of the first beam member 151 protruding from the second vertical beam 14, The ends of the crosspieces 151 and 13 are connected by pipes, bolts, washers, nuts, and the like. At this time, as shown in FIG. 10, each side plate 15a spreads out on the opening side of the hat-shaped cross-sectional shape of the crosspiece members 151 and 152, so that one end of each side plate 15a of the second crosspiece member 152 is 1 By simply covering the left end of each side plate 15a of the second cross member 151, the left end of each first side plate 15a can be inserted and sandwiched inside one end of each second side plate 15a. . At the same time, the left end of the second lower beam member 152 is placed on the third vertical beam 14, and the left end of the beam member 152 is fixed by the mounting bracket 31 of the vertical beam 14. In the same procedure, the second center and upper cross members 152 are bridged between the left end of each of the first center and upper cross members 151 and the third vertical cross 14 and fixed.

  With respect to the third cross member 152, the left end of the second cross member 152 protrudes beyond the third vertical cross 14 as shown in FIG. It is bridged between the left end of the crosspiece member 152 and the fourth vertical crosspiece 14 and fixed.

  Similarly, the n-th beam member 152 is fixed between the left end portion of the (n−1) -th beam member 152 and the (n + 1) -th vertical beam 14.

  As apparent from FIGS. 41 and 42, the horizontal beam 15 is constructed by placing the vicinity of the connecting portion of the beam members 151 and 152 on the vertical beam 14. Thereby, the connection location of each crosspiece member 151 and 152 is reinforced, and the strength of the entire horizontal crosspiece 15 is improved.

  As shown in FIG. 43, for each even-numbered base beam 12, a truss structure for reinforcing the central horizontal beam 15 is constructed by spanning two trusses 16 between the base beam 12 and the central horizontal beam 15. To do.

  As shown in FIG. 44, the frame member 19 of each of the upper, lower, left, and right solar cell modules 17 is fixed by the first connection fitting 41, the second connection fitting 51, the first fixing fitting 43, and the second fixing fitting 44. At this time, as described above, the inner edge 19a of the frame member 19 of the lower solar cell module 17 is brought into contact with the protrusion 41f of the lower first connection fitting 41 on the central horizontal rail 15, The upper and lower positions of the lower solar cell module 17 are positioned, and thereafter, the frame member 19 of the upper solar cell module 17 is brought into contact with the frame member 19 of the lower solar cell module 17, so that the upper solar cell module 17. Position the vertical position of.

  As is apparent from FIG. 44, two first or second fixing metal fittings 43 and 44 and one first and second connection metal fittings 41 and 51 are arranged on each side of the solar cell module 17. Thus, the side is fixed at two places with a shorter interval than the side of the solar cell module 17. For this reason, the arrangement | positioning space | interval of a fixing metal fitting and a connection metal fitting can be narrowed, the length of the vertical rail 14 can be made shorter than the side of the solar cell module 17, and size reduction of a structure installation stand can be achieved.

  As mentioned above, although the embodiment of the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and even if a design change or the like in a category not departing from the gist of the present invention is performed, It is included in the scope of the present invention.

  For example, as a base crosspiece, arm, vertical crosspiece, horizontal crosspiece, truss, a pair of side plates, a main plate that connects opposite sides of each side plate, and a hat-shaped cross-sectional shape that is folded outward at the edge of each side plate However, instead of this, it is possible to apply a U-shaped or a cross-sectional shape close to a U-shape consisting of a pair of side plates and a main plate that connects opposite sides of each side plate. it can. Or you may combine these cross-sectional shapes suitably.

  Moreover, although the 1st connection metal fitting 41 and the reinforcement metal fitting 42 are used together, you may provide the reinforcement metal fitting fitted inside the 2nd connection metal fitting 51. FIG. The cross-sectional shape of these reinforcing metal fittings may be either a hat-shaped or a U-shaped, and in any case, the cross-sectional shape of the horizontal beam 15 is a rectangular closed structure to improve the strength of the horizontal beam 15. Can do.

  Moreover, in this embodiment, although the solar cell module is supported, you may support the reflector panel used for solar thermal power generation instead. Thereby, a solar thermal power generation system can be constructed.

  Further, in the present embodiment, the main plate end and the side plate end are partially cut away, but each side plate end can be formed by only making a cut in a portion where the main plate and the side plate are in contact (one side between the main plate and the side plate). Can be elastically deformed, so that each cross member can be connected by overlapping each side plate end of another cross member on the inside or outside of each side plate end of the cross member.

  Further, in the present embodiment, a set of two first connection fittings 41 are arranged vertically symmetrically with respect to the center line S of the crosspiece 15, and each bolt 45 is also vertically arranged with respect to the centerline S of the horizontal crosspiece 15. Although it arrange | positions symmetrically, in the range in which the same effect is acquired, you may arrange | position each 1st connection metal fitting 41 or each volt | bolt 45 a little from the vertically symmetrical position.

  Similarly, the bolt hole 15e of the main plate 15b of the cross rail 15 is formed on the center line S, and the screw hole 51e of the second connection fitting 51 is formed on the center line S. The bolt hole 15e or the screw hole 51e may be formed slightly shifted from the center line S.

  In addition, in the gantry of the present embodiment, steel is mainly used as a material, but each side plate end of one cross member is connected to each side plate end of the other cross member between cross members having the same size and the same cross-sectional shape. In order to overlap the portion, it is necessary to elastically deform each side plate end portion of the crosspiece member by the thickness of each side plate by human power. For this reason, it is desirable that the thickness of at least the crosspiece member is 2.0 mm or less, and in order to realize good workability, it is preferably 1.6 mm or less. On the other hand, since it is necessary to ensure the strength of the crosspiece member for supporting the structure, it is desirable that the thickness of the crosspiece member be 0.5 mm or more.

  Furthermore, you may change suitably the shape and structure of a 1st or 2nd connection metal fitting. FIG. 45 is a perspective view showing a modification of the first connection fitting for attaching the solar cell module 17 to the central cross rail 15. FIG. 46 is a cross-sectional view showing a state where the first connection fitting of FIG. 45 is attached to the central cross rail.

  The first-A connection fitting 71 of this modification was raised by bending the side plate 71a, the bottom plate 71b bent at the lower edge of the side plate 71a, the main plate 71c bent at the upper edge of the side plate 71a, and both ends of one side of the main plate 71c. Each projection 71e has a screw hole 71f formed in the approximate center of the main plate 71c, and a bolt hole 71g formed in the approximate center of the side plate 71a.

  Further, a U-shaped notch is formed at the upper position of the bolt hole 71g in the side plate 71a of the first A connection fitting 71, and this U-shaped inner portion is opposite to the bottom plate 71b and the main plate 71c from the side plate 71a. The claw portion 71h is pushed out to the side.

  The height from the lower surface of the bottom plate 71b of the first A connection fitting 71 to the upper surface of the main plate 71c is higher than the height from the upper surface of the flange 15c of the central cross rail 15 to the upper surface of the main plate 15b. Specifically, the height to the upper surface of the main plate 71c of the first A connection fitting 71 is made higher by the plate thickness of the fitting than the height to the upper surface of the main plate 15b of the cross rail 15.

  The first A connecting fitting 71 is similar to the first connecting fitting 41 shown in FIGS. 21A to 21C. The pair of slits 15d and the bolt holes 15e in the main plate 15b of the central cross rail 15 (see FIG. 3 and the like). ) Are arranged in pairs, and the side plates 71a of the two first A connection fittings 71 are overlapped on the side plates 15a of the horizontal rails 15, and the main plate 71c of each first A connection fitting 71 is connected to the horizontal rail 15 The protrusions 71e of the first A connecting fittings 71 protrude upward from the main plate 15b of the horizontal rail 15.

  At this time, the claw portion 71h of the side plate 71a of each 1A connection fitting 71 engages with an engagement hole (not shown) of each side plate 15a of the horizontal beam 15, and each 1A connection fitting 71 of the horizontal beam 15 Temporarily fixed to each side plate 15a. Here, it is assumed that an engagement hole is formed at an appropriate location of each side plate 15a of the cross rail 15.

  Further, by setting the height from the lower surface of the bottom plate 71b of the first A connection fitting 71 to the upper surface of the main plate 71c as described above, the upper surface of the main plate 71c of the first A connection fitting 71 is more than the upper surface of the main plate 15b of the cross rail 15. Increases by the thickness.

  In this state, the pipe 72 is inserted between the side plates 15a of the horizontal rail 15, and the pipe 72, the bolt holes 15f of the side plates 15a of the horizontal rail 15, and the bolt holes 71g of the side plates 71a of the first A connection fittings 71 are formed. The bolt 73 is passed through the pipe 72, the bolt hole 15 f of each side plate 15 a of the crosspiece 15, the bolt hole 71 g of the side plate 71 a of each 1A connection fitting 71, and a washer. The first A connection fittings 71 are fixed to the crosspieces 15 by screwing and tightening.

  47, the frame member 19 of the solar cell module 17 is placed between the protrusions 71e of the first A connecting fitting 71 and placed on the main plate 71c, and the second fixing fitting 44 (or the first fixing fitting) is placed. 43) is pressed against the frame member 19 of the solar cell module 17, and the bolt 45 is pushed through the bolt hole 44c of the second fixing bracket 44 (or the bolt hole 43c of the first fixing bracket 43) to the main plate of the first A connecting bracket 71. The frame member 19 of the solar cell module 17 is sandwiched and fixed between the second fixing fitting 44 (or the first fixing fitting 43) and the main plate 71c of the first A connecting fitting 71 by screwing into the screw hole 71f of 71c.

  In this state, the upper surface of the main plate 71c of the first A connection fitting 71 is higher than the upper surface of the main plate 15b of the horizontal beam 15 by the thickness of the metal plate, so that the frame member 19 of the solar cell module 17 is the main plate of the horizontal beam 15. It floats from the upper surface of 15b. For this reason, a path for allowing water to escape is formed between the frame member 19 of the solar cell module 17 and the main plate 15b of the cross rail 15, and the occurrence of rusting of the member can be prevented.

  Water drainage holes may be formed in the corners of the frame member 19 of the solar cell module 17, and when water leaking from the water drainage holes accumulates for a long time, this causes rusting of the members. If it is discharged through a path between the frame member 19 of the solar cell module 17 and the main plate 15b of the horizontal rail 15, the occurrence of rusting of the member can be prevented.

  FIG. 48 is a perspective view showing another modification of the first connection fitting. The 1B connecting bracket 81 of this modified example is bent and raised at a plurality of locations on one side of the main plate 81c, the bottom plate 81b bent at the lower edge of the side plate 81a, the main plate 81c bent at the upper edge of the side plate 81a. Each projection 81e, two screw holes 81f formed in the main plate 81c, bolt holes (not shown) formed in a plurality of locations on the side plate 81a, and two claw portions 81h. The first B connection fitting 81 is longer than the width of the solar cell module 17.

  There are five protrusions 81e, four notches 81i are formed between the protrusions 81e, and screw holes 81f of the main plate 81c are formed at the two notches 81i on both ends. The distance between the two screw holes 81 f is slightly longer than the width of the solar cell module 17.

  The height from the bottom surface of the bottom plate 81b to the top surface of the main plate 81c of the first B connection fitting 81 is set higher than the height from the top surface of the flange 15c of the central cross rail 15 to the top surface of the main plate 15b by the thickness of the metal plate.

  As shown in FIG. 49, the first B connection fitting 81 is used together with the first A connection fitting 71 shown in FIGS. The first B connection fittings 81 are arranged in pairs at the center of the central crosspiece 15, and the first A connection fittings 71 are arranged in pairs at both ends of the central crosspiece 15. In each of the first A connection fitting 71 and the first B connection fitting 81, the side plates 71a and 81a are overlapped on the side plates 15a of the horizontal beam 15, and the main plates 71c and 81c protrude outward from the horizontal beam 15. The protrusions 71e and 81e protrude upward from the main plate 15b of the horizontal rail 15. Further, the claw portions 71h and 81h of the side plates 71a and 81a are engaged with the engagement holes (not shown) of the side plates 15a of the horizontal rail 15, so that the first A connection fitting 71 and the first B connection fitting 81 are lateral. Temporarily fixed to each side plate 15a of the crosspiece 15. Furthermore, the upper surfaces of the main plates 71c and 81c are higher than the upper surface of the main plate 15b of the cross rail 15 by the thickness of the metal fitting.

  In this state, in the same way as in FIG. 46, for the first A connection fitting 71, the pipe 72 is inserted between the side plates 15a of the horizontal beam 15, the bolt 73 is connected to the pipe 72, and the bolt hole 15f of each side plate 15a of the horizontal beam 15. Then, the nuts 74 are screwed into one end of the bolts 73 and tightened by passing them through the bolt holes 71g of the side plates 71a of the first A connection fittings 71 and the washers, and the first A connection fittings 71 are fixed to the horizontal rails 15. As for the 1B connecting bracket 81, a pipe 72 is inserted between the side plates 15a of the horizontal rail 15, the bolt 73 is connected to the pipe 72, the bolt hole 15f of each side plate 15a of the horizontal rail 15, and the first B connecting bracket 81. Then, the nut 74 is screwed into one end of the bolt 73 and tightened to pass through the bolt hole of the side plate 81a and the washer, and each 1B connecting bracket 81 is fixed to the horizontal rail 15. Since the four bolt holes are formed in the side plate 81a of the first B connection fitting 81, the first B connection fitting 81 is attached to the horizontal rail 15 by using the pipe 72, the bolt 73, and the nut 74 for each of these bolt holes. Fix it.

  Thereafter, the frame members 19 of the upper and lower two solar cell modules 17 are placed between the first A connecting fitting 71 and the first B connecting fitting 81 at one end of the horizontal rail 15, and the upper and lower two solar panels are also placed on the first B connecting fitting 81. The frame member 19 of the battery module 17 is placed, and the frame members 19 of the two upper and lower solar cell modules 17 are also placed between the first A connection fitting 71 and the first B connection fitting 81 at the other end of the horizontal rail 15. A total of six frame members 19 of the solar cell modules 17 are placed on the horizontal rails 15.

  In the first A connection fitting 71, the frame member 19 of the solar cell module 17 is fixed as shown in FIG.

  Moreover, in the 1B connection fitting 81, the location of the notch 81i corresponds to the space between the projections 71e of the 1A connection fitting 71, and the frame members 19 of the two solar cell modules 17 adjacent to the left and right are It puts in the location of the notch part 81i, mounts it on the main plate 81c, and inserts the 1st fixing bracket 43 between the frame members 19 of each solar cell module 17 similarly to FIG. The bolts 43c of the metal fittings 43 are screwed into the screw holes 81f of the main plate 81c of the first B connection fitting 81 and tightened. The member 19 is sandwiched and fixed.

  In addition, the first B connection fitting 81 is provided with two notches 81i, and both sides of the frame member 19 of one solar cell module 17 are disposed in these notches 81i. The first fixing fittings 43 are pressed against both sides of the frame member 19, and the two bolts 45 are screw holes in the main plate 81 c of the first B connection fitting 81 through the bolt holes 43 c of the first fixing fittings 43. It is screwed into 81f. Therefore, the distance between each screw hole 81f must be slightly longer than the width of the solar cell module 17 so that the solar cell module 17 can be disposed in the space between the two screw holes 81f.

  Even when such a first B connection fitting 81 is used together with the first A connection fitting 71, the upper surface of the main plate 71c of the first A connection fitting 71 and the upper surface of the main plate 81c of the first B connection fitting 81 are more fitting than the upper surface of the main plate 15b of the cross rail 15. Therefore, a path for allowing water to escape is formed between the frame member 19 of the solar cell module 17 and the main plate 15b of the horizontal rail 15, and the occurrence of rusting of the member can be prevented.

  In addition, since the first B connection fitting 81 is longer than the width of the solar cell module 17, the distance that the side plate 81a and the bottom plate 81b of the first B connection fitting 81 overlap the side plate 15a and the flange 15c of the central cross rail 15 is increased. When the 1B connecting bracket 81 is fixed to the central crosspiece 15, the central crosspiece 15 is effectively reinforced. Accordingly, the first B connection fitting 81 not only supports the frame members 19 of the three solar cell modules 17 but also serves as a reinforcing tool for the central horizontal rail 15. Since a larger load is applied to the central side rail 15 than the upper and lower side rails 15, such reinforcement of the central side rail 15 is beneficial.

11 Concrete foundation 12 Base beam 13 Arm 14 Vertical beam 15 Horizontal beam 16 Truss 17 Solar cell module 18 Solar cell panel 19 Frame members 21, 26, 32, 45 Bolt 22 U-shaped reinforcing bracket 25 Pipe 27 Nut 31 Mounting bracket 41 First connection bracket 42 Reinforcing bracket 43 First fixing bracket 44 Second fixing bracket 51 Second connection bracket 71 1A connection bracket 81 1B connection bracket

Claims (15)

A structure connection structure for connecting and fixing a structure,
A crosspiece on which the structure is mounted, and a connecting member for connecting and fixing the structure to the crosspiece,
The crosspiece has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate,
The connection member is overlapped and fixed on a side plate of the crosspiece, and a connection portion between the connection member and the structure is located on a center line of the crosspiece or a line symmetrical position with respect to the centerline. Structure connection structure. The structure connection structure according to claim 1,
The connection member is a one-to-one set,
The structure is characterized in that the pair of connection members are overlapped and fixed to the side plates of the crosspieces, and the structure is connected to the positions of the connection members that are symmetrical with respect to the center line of the crosspieces. Connection structure. The structure connection structure according to claim 1,
The connecting member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate,
The structure is characterized in that the cross section of the connecting member is disposed so as to overlap the inside of the cross section of the crosspiece, and the structure is connected to the main plate of the connecting member through a hole on the center line of the main plate of the crosspiece. Object connection structure. The structure connection structure according to claim 1,
The connecting member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate,
A structure connection structure, wherein the connection member is disposed so that a cross section of the connection member overlaps an inner side of a cross section of the crosspiece, and each side plate of the connection member and each side plate of the crosspiece are overlapped. The structure connection structure according to claim 2,
A reinforcing member having a main plate and a pair of side plates extending in the same direction, each side extending in the direction of the pair of side plates being connected by the main plate;
The cross section of the reinforcing member is disposed inside the cross section of the crosspiece, each side plate of the reinforcing member is overlapped with each side plate portion of the crosspiece, and the opening of the cross section of the crosspiece is closed by the main plate of the reinforcing member. Structure connection structure characterized by that. The structure connection structure according to claim 2,
A structure connection structure comprising a pipe disposed inside a cross section of the crosspiece, a hole in each side plate of the crosspiece, and a shaft that is passed through and fixed to the pipe. The structure connection structure according to any one of claims 1 to 6,
The structure connection structure, wherein the connection member includes a protrusion protruding on a main plate of the crosspiece. The structure connection structure according to any one of claims 1 to 6,
The crosspiece has a hat-shaped cross section comprising a pair of side plates facing each other, a main plate for connecting the side plates, and a hook-shaped cross section bent at an edge of each side plate. The structure connection structure according to any one of claims 1, 2, and 5 to 8,
The structure connection structure characterized in that a support position of the structure by the connection member is above the main plate of the crosspiece. A connection member used in a structure connection structure for connecting and fixing a structure,
The connection member is a one-to-one set having a main plate bent at a side plate and an edge of the side plate,
A connection member used for a structure connection structure, wherein a hole for fixing a structure is formed in a main plate of each connection member, and a protrusion is provided on the main plate of each connection member. The connection member according to claim 10,
A plurality of holes for fixing the structure are formed in the main plate of the connection member,
The connecting member, wherein the interval between the holes is set so that the structure can be arranged in a space between the holes. A connection member used in a structure connection structure for connecting and fixing a structure,
The connecting member has a main plate and a pair of side plates extending in the same direction, and the sides of the pair of side plates extending in the direction are connected by the main plate,
A connection member used for a structure connection structure, wherein a hole for fixing a structure is formed on a center line of the main plate, and a protrusion is provided on the main plate. A construction method for a structure connection structure according to claim 1,
The connection member includes a protrusion protruding on the main plate of the crosspiece,
The construction method for a structure connection structure, wherein the structure is placed on a main plate of the crosspiece and is positioned by being locked to a protrusion of the connection member.   A solar cell system, wherein a solar cell module as a structure is connected and fixed on the crosspiece using the structure connection structure according to claim 1. The solar cell system according to claim 14,
A fixing member disposed opposite to the connection member fixed to the crosspiece,
The solar cell system, wherein the solar cell module is fixed by sandwiching a side of the solar cell module in the water flow direction between the connection member and the fixing member.

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