JP6592379B2 - Solar cell module fixing structure - Google Patents

Description

  The present invention relates to a solar cell module fixing structure in which a solar cell module is fixed on a roof.

  As a fixing structure for fixing the solar cell module on the roof, the plurality of lower fixing members attached at intervals on the roof are spaced in a direction perpendicular to the inclination direction while extending in the inclination direction of the roof. A fixing structure has been proposed in which a plurality of crosspiece members are attached and a solar cell module placed on the crosspiece member so as to straddle the plurality of crosspiece members is fixed to the crosspiece member by an upper fixing member. (Patent Document 1).

  In the technique of Patent Document 1, the lower fixing member includes a pair of fixing pieces into which a crosspiece member is inserted, and the crosspiece member includes a groove extending in the longitudinal direction on both side surfaces. Then, in the crosspiece member inserted between the pair of fixed pieces, a bolt that has passed through the fixed piece is screwed into a nut inserted into the groove from the end in the longitudinal direction. The member is attached.

  However, in the technique of Patent Document 1, since the nut is inserted into the groove from the longitudinal end of the crosspiece member, it is necessary to slide a long distance to the position of the fixing piece of the lower fixing member. It was over.

  In contrast, the applicant of the present application can increase the vertical dimension of the opening of the groove formed on the side surface of the crosspiece member and insert the slider member in which the female screw hole is formed into the groove through the opening. The technique which attaches a crosspiece member to a lower fixing member by screwing the bolt which let the lower fixing member pass to the female screw hole of the slider member inserted in the groove | channel is proposed (patent document 2). ). According to the technique of Patent Document 2, since the slider member can be inserted into the groove through the opening at the portion close to the lower fixing member in the crosspiece member, the sliding distance is shortened, and labor can be reduced. Moreover, in the technique of patent document 2, in order to make it easy to perform the sliding operation of the slider member, the vertical dimension of the opening is increased to facilitate the insertion of the operator's finger.

  By the way, when mounting a plurality of crosspieces on the roof, depending on the state of the roof or the part of the roof to which the lower fixing member is attached, the top surfaces of the plurality of crosspieces attached are in a non-landing state (the same May not be on the surface). If the solar cell module is fixed across the plurality of crosspiece members in such a state, the solar cell module is twisted and may be damaged. Therefore, in the techniques such as Patent Document 1 and Patent Document 2, in the fixing piece of the lower fixing member, the fixing hole through which the bolt is inserted is a long and long hole, and the mounting height of the crosspiece member is set to each lower fixing member. It can be adjusted. In addition, by forming a screw hole in the fixed piece in advance and adjusting the height of the beam member, the screw is screwed into the side surface of the beam member through the screw hole to prevent the beam member from falling when the bolt is loosened. ing.

  However, when the height of the crosspiece member is adjusted with respect to the lower fixing member, if the position of the screw hole formed in the fixed piece coincides with the opening of the groove, the screw is screwed into the crosspiece member through the screw hole. I couldn't. Moreover, in the technique of Patent Document 2, since the vertical dimension of the groove opening is increased so that the operator's finger can be easily inserted, the pre-formed screw hole and the groove opening are likely to coincide with each other. It was. For this reason, when the pre-formed screw hole and the opening of the groove coincide with each other, a screw hole is made at another position of the fixed piece on the roof, and the screw is screwed into the crosspiece member. , It took time and effort.

Japanese Patent No. 5202430 JP2015-105500A

  Accordingly, in view of the above circumstances, an object of the present invention is to provide a solar cell module fixing structure capable of reducing the labor of fixing work on the roof.

In order to solve the above-described problems, the solar cell module fixing structure according to the present invention includes a “lower fixing member attached on the roof and a long extension in the inclination direction of the roof, on which the solar cell module is placed. A crosspiece member, a lower nut member that fastens and fixes the crosspiece member to the lower fixing member in cooperation with a lower bolt, an upper fixing member that is in contact with the upper surface of the solar cell module, A solar cell module fixing structure comprising an upper nut member that clamps and fixes the solar cell module between the crosspiece member and the upper fixing member in cooperation with an upper bolt, The lower fixing member passes through the lower fixing piece, a flat plate-like lower base piece, a pair of flat lower fixing pieces protruding from the lower base piece at intervals, and vertically. Long lower fixing holes and respective lower fixing pieces The crosspiece member includes a rectangular top plate portion whose shorter side is shorter than the interval between the pair of lower fixing pieces, and downward from one long side of the top plate portion. An upper contact portion that extends, an upper connection portion that extends downward from the other long side of the top plate portion, and a lower side of the upper connection portion that extends to a position below the upper contact portion. A lower connecting portion and a lower connecting portion that extends upward from the tip side of the lower connecting portion on the same plane as the upper abutting portion, and that has openings with a constant interval between the lower abutting portion and the upper abutting portion. A contact portion and an insertion portion that penetrates the top plate portion and extends in the longitudinal direction of the top plate portion, and the upper contact portion and the lower contact portion are one of the lower fixed pieces. The lower nut member has a fixing direction longer than the interval between the openings, and is longer than the interval between the top plate portion and the lower connection portion. A flat plate-like main body portion and a female screw hole penetrating the main body portion, and inserted into the crosspiece member through the opening, and one end of the main body portion in the fixing direction The part side is in contact with the inner side surface of the upper contact part, and the other end side is in contact with the inner side surface of the lower contact part, and the lower bolt is the upper contact part of the pair of lower fixing pieces and The male screw part that penetrates the lower fixing hole and the opening of the lower fixing piece that is in contact with the lower abutting part is screwed into the female screw hole and tightened. "

  Here, as "the lower fixing member", "the one that can be directly attached to the top surface of the roofing material", "the one that can be attached to the mounting member that is attached to the top surface of the roofing material", It is attached to a roof structure material that is attached to an attachment member that protrudes upward from the roof material ”.

  The relationship between the upper bolt and the upper nut member is as follows: “The upper nut member is in contact with the lower surface of the top plate portion of the crosspiece member and the male screw portion of the upper bolt is connected to the upper fixing member and the top nut member. "The screw threaded into the upper nut member through the insertion part of the plate part", "The male screw part of the upper bolt passes through the insertion part of the top plate part of the crosspiece member from below and passes through the upper fixing member. And the upper nut member is screwed from the upper end of the male screw portion of the upper bolt ”.

  The insertion portion penetrating the top plate portion may be a long hole extending in the longitudinal direction of the crosspiece member, or the upper contact portion and the upper connection portion are connected to the crosspiece member with a space between the top plate portion. In the case where the connecting portion is provided, it may be a slit extending over the entire length of the crosspiece member.

  The fixing structure of the solar cell module of this configuration can be constructed as follows, for example. First, a plurality of lower fixing members are spaced apart in the inclined direction and in a direction perpendicular to the inclined direction (hereinafter simply referred to as the lateral direction) with the pair of lower fixed pieces parallel to the inclined direction of the roof. Install on the roof. Subsequently, the crosspiece member is inserted from above between the pair of lower fixing pieces of the plurality of lower fixing members arranged in the inclined direction. Then, the lower nut member is inserted into the crosspiece member through the opening at the portion in the vicinity of the lower fixed piece, and one side of the main body portion is brought into lower contact with the inner surface of the upper contact portion with the fixing direction thereof being directed upward and downward It abuts on the inner surface of the part. Subsequently, the lower nut member is slid in the direction of the lower fixing piece so that the female screw hole is aligned with the lower fixing hole of the lower fixing piece. In this state, the male screw portion of the lower bolt is screwed and tightened into the female screw hole through the lower fixing hole and the opening of the lower fixing piece.

  Accordingly, the upper contact portion and the lower contact portion of the crosspiece member are in contact with the inner surface of one lower fixing piece of the pair, and one end side in the fixing direction of the main body portion of the lower nut member is the upper contact portion. The other end side is in contact with the inner surface of the lower contact portion, and the lower fixing piece and the upper contact portion and lower contact portion of the cross member are the lower nut member and the head of the lower bolt. And the crosspiece member is fixed to the lower fixing member.

  When fixing the crosspiece member to the lower fixing member, the crosspiece with respect to each lower fixing member is within the range of the lower fixing holes that are vertically long so that the upper surfaces of the plurality of crosspiece members are on the same surface on the roof. Adjust the height of the member. Then, after adjusting the height of the crosspiece member, after tightening the lower bolt strongly, the screw is screwed into the upper connection portion of the crosspiece member through the screw hole of the fixing piece opposite to the lower fixing member. Thereby, the crosspiece member is prevented from dropping and moving in the inclined direction with respect to the lower fixing member.

  When a plurality of crosspiece members are fixed on the roof as described above, the solar cell module is placed so as to straddle a plurality of (for example, two) crosspiece members, and crosses the crosspiece members at the edge of the solar cell module. The upper fixing member is brought into contact with the upper surface of the existing portion. Then, the upper nut member is screwed and tightened to the male screw portion of the upper bolt through which the insertion portion of the crosspiece member and the upper fixing member are inserted, so that the solar cell module is sandwiched between the upper fixing member and the crosspiece member. Fasten and fix. At this time, the upper nut member or the upper bolt positioned below the top plate portion can be inserted into the crosspiece member through the opening. In this way, a structure for fixing the solar cell module fixed on the roof can be constructed.

  Thus, according to this structure, since the opening is not formed in the upper connection part of the crosspiece member, it is formed in the lower fixed piece regardless of the height of the crosspiece member. Screws can be screwed into the upper connecting portion through the screw holes. Thereby, the screw hole for preventing the crosspiece member from falling can be formed in the lower fixed piece in advance, and the work of drilling the screw hole on the roof can be eliminated.

  Also, it is not necessary to screw the screw through the screw hole on the side surface where the opening is provided on both side surfaces of the crosspiece member, so that the vertical dimension of the opening is made larger and the operator's finger can be easily inserted. can do. As a result, with the operator holding the lower nut member, it can be inserted into the crosspiece member from the opening, or the lower nut member inserted inside can be attached to the inner surface of the upper contact portion and the inner surface of the lower contact portion. It is possible to easily perform the operation of abutting or sliding the lower nut member inserted into the lower fixed piece side.

  Thus, the trouble of fixing work on the roof of a solar cell module can be reduced.

  The fixing structure of the solar cell module of this configuration is in addition to the above-described configuration. “The crosspiece member protrudes from the inner surface of each of the upper contact portion and the lower contact portion and extends in the longitudinal direction. A pair of opening ridges is further provided, and the lower nut member is formed with a groove portion into which the pair of opening ridges are inserted in the main body portion.

  According to this configuration, the pair of opening protrusions of the crosspiece member are respectively inserted into the two groove portions of the lower nut member, so that the opening portion is expanded or narrowed by deformation of the crosspiece member. It can be regulated by the lower nut member. Thereby, since a deformation | transformation of a crosspiece member can be suppressed, stability of the fixing structure to the roof of a solar cell module can be improved.

  In addition to the above-described configuration, the solar cell module fixing structure according to the present configuration is “the upper fixing member extends from a flat upper base piece and a pair of sides of the upper base piece. A pair of upper fixing pieces that are in contact with the upper surface of the battery module; an upper fixing hole that passes through the upper base piece and through which a male screw portion of the upper bolt is inserted; and the upper base piece A leg piece extending downward from one of the pair of sides and having a lower end in contact with the crosspiece member ”.

  As the “upper fixing member”, “a pair of standing pieces extending upward from a pair of sides of the upper base piece, respectively, and the upper fixing pieces extending from the upper ends of the pair of standing pieces”, “A pair of upper fixing pieces directly extending from a pair of sides of the upper base piece” can be exemplified.

  By the way, in the technique of patent document 1, the upper fixing member in contact with the upper surface of the solar cell module is separated from the crosspiece member. Therefore, in the upper fixing member located between the two solar cell modules arranged in the inclination direction of the roof, after positioning each solar cell module, the upper fixing member is brought into contact with each upper surface, The two solar cell modules are simultaneously fixed by tightening a nut to the upper bolt passing through the upper fixing member. Therefore, since the operator tightens the nut in such a posture as to straddle the solar cell module, it is necessary to work with great care so as not to damage the solar cell module, which is troublesome.

  On the other hand, in this structure, since the upper fixing member includes the leg piece that comes into contact with the crosspiece member, one upper fixing piece of the pair is brought into contact with the solar cell module, and the lower end of the leg piece. If the upper bolt and the upper nut member are tightened in a state where the upper plate is in contact with the crosspiece member, the solar cell module can be fixed to the crosspiece member without falling down. Then, after fixing the solar cell module to the crosspiece member with one upper fixing piece, the next solar cell module is inclined with respect to the crosspiece member between the other upper fixing piece and the crosspiece member. After inserting the edge, slide the solar battery module on both sides in one upper fixing member by sliding it to the solar cell module side fixed first while placing the opposite edge on the crosspiece member Can be fixed.

  Accordingly, when fixing a plurality of solar cell modules in the roof inclination direction, the solar cell modules can be fixed in order from one side with respect to the roof inclination direction, so that the operator straddles the solar cell modules. Thus, it is not necessary to take a posture, and the work can be performed in an easy posture. Moreover, it is not necessary to arrange a plurality of solar cell modules before fixing to the crosspiece member, and labor on the roof can be reduced.

  As described above, as an effect of the present invention, it is possible to provide a solar cell module fixing structure capable of reducing the labor of fixing work on the roof.

It is a perspective view which shows the state which applied the fixing structure of the solar cell module which is one Embodiment of this invention, and fixed the solar cell module on the roof. It is a side view of the fixing structure of the solar cell module of FIG. (A) is the expanded sectional view cut | disconnected by the AA line in FIG. 2, (b) is the expanded sectional view cut | disconnected by the BB line in FIG. It is the expanded sectional view which abbreviate | omitted and partly cut | disconnected in the site | part of the upper fixing member in FIG. It is a disassembled perspective view which abbreviate | omits and shows a roof material in FIG. (A) is a front view of the crosspiece member used for the fixing structure of the solar cell module of FIG. 1, (b) is a perspective view of the crosspiece member of (a). (A) is a front view of the lower nut member used for the fixing structure of the solar cell module of FIG. 1, (b) is a perspective view of the lower nut member (a). (A) is a side view of the upper fixing member used for the solar cell module fixing structure of FIG. 1, and (b) is a perspective view of the upper fixing member of (a). (A) is a front view of the upper nut member used for the fixing structure of the solar cell module of FIG. 1, (b) is a perspective view of the upper nut member (a). FIG. 2 is a perspective view of a ground metal fitting used in the solar cell module fixing structure of FIG. 1. It is explanatory drawing which shows the insertion method of the nut member for down to a crosspiece member. It is explanatory drawing which shows the fixing method of the crosspiece member to a lower fixing member with a perspective view. It is explanatory drawing which shows the fixing method of the crosspiece member to the lower fixing member continued from FIG. 12 with a perspective view. (A) is sectional drawing which shows the state which has fixed the crosspiece member to the lowest position with respect to the lower fixing member, (b) has fixed the crosspiece member to the highest position with respect to the lower fixing member. It is sectional drawing which shows a state. It is explanatory drawing which shows attachment of the upper fixing member to an eaves cover in the fixing structure of the solar cell module of FIG. 1 with a perspective view. FIG. 2 is an explanatory view showing a perspective view in which the relationship among a crosspiece member, a lower nut member, a ground metal fitting, an upper fixing member, and an upper bolt is exploded in the solar cell module fixing structure of FIG. 1. It is explanatory drawing which shows the fixing method of the solar cell module to a crosspiece member. (A) is a front view of the crosspiece member of a form different from the crosspiece member of FIG. 6, (b) is a perspective view of the crosspiece member of (a).

  A fixing structure 1 (hereinafter simply referred to as a fixing structure 1) of a solar cell module 2 according to an embodiment of the present invention will be described in detail with reference to FIGS.

  The fixing structure 1 of the present embodiment includes a lower fixing member 10 attached on the roof, a crosspiece member 20 that extends long in the inclination direction of the roof and on which the solar cell module 2 is placed, and a lower bolt 4. The lower nut member 30 that fastens and fixes the crosspiece member 20 to the lower fixing member 10, the upper fixing member 40 that is in contact with the upper surface of the solar cell module 2, and the upper bolt 5. And an upper nut member 50 that fastens and fixes the solar cell module 2 between the crosspiece member 20 and the upper fixing member 40. In this embodiment, the lower bolt 4 and the upper bolt 5 are general bolts, and a plain washer and a spring washer are inserted in advance.

  The fixing structure 1 is sandwiched between the crosspiece member 20 and the solar cell module 2, and is fixed to both sides between the solar cell module 2 and the crosspiece member 20 or with the upper fixing member 40 therebetween. Between the two solar cell modules 2 that are electrically connected to each other and a plurality of crosspiece members 20 so as to extend along the edge of the eaves side of the solar cell module 2 closest to the eaves. Eaves cover 70 attached thereto.

  The lower fixing member 10 passes through the flat lower base piece 11, a pair of flat lower fixing pieces 12 protruding upward from the lower base piece 11, and the lower fixing pieces 12. A lower fixing hole 13 which is long in the vertical direction, a plurality of screw holes 14 penetrating each lower fixing piece 12 at a position different from the lower fixing hole 13, and a lower side on each inner side surface of the pair of lower fixing pieces 12 A protruding piece 15 protruding from a portion below the fixing hole 13 and a lower mounting hole 16 penetrating the lower base piece 11 are provided (see FIGS. 2 and 3).

  The pair of lower fixing pieces 12 protrude from two parallel sides of the lower base piece 11. The lower fixing hole 13 and the lower mounting hole 16 are formed in the center of the lower base piece 11 and the lower fixing piece 12 in a direction perpendicular to the vertical direction and parallel to the lower fixing piece 12. The screw holes 14 are formed symmetrically one on each side of the lower fixing hole 13 at a position higher than the lower fixing hole 13 in each lower fixing piece 12.

  The lower fixing member 10 is formed by cutting an aluminum alloy extrusion mold member extending in a single cross-sectional shape to a length of 50 mm to 100 mm, and then drilling a lower fixing hole 13, a screw hole 14, and a lower mounting hole 16. It is a thing.

  As shown in FIG. 6, the crosspiece member 20 includes a flat plate-shaped rectangular top plate portion 21, an upper contact portion 22 extending downward from one long side of the top plate portion 21, and the other of the top plate portion 21. The upper connection part 23 extending from the long side to the lower side of the upper contact part 22, the lower connection part 24 extending from the lower side of the upper connection part 23 to the lower side of the upper contact part 22, and the tip of the lower connection part 24 A lower contact portion 25 that extends upward from the side on the same plane as the upper contact portion 22 and that has an opening 20 a with a constant interval between the upper contact portion 22 and the top plate portion 21. And a plurality of insertion portions 26 extending in the longitudinal direction of the top plate portion 21.

  In the crosspiece member 20 of the present embodiment, the top plate portion 21 has a short side shorter than the distance between the pair of lower fixing pieces 12. The boundary between the upper connection portion 23 and the lower connection portion 24 is not clear and is curved. A plurality of insertion portions 26 are formed in the longitudinal direction of the crosspiece member 20 at intervals corresponding to the length of the short side of the solar cell module 2. The crosspiece member 20 is formed such that the distance from the upper surface of the top plate portion 21 to the lower surface of the lower connection portion 24 is longer than the distance from the upper end of the lower fixing piece 12 to the upper surface of the protruding piece 15 in the lower fixing member 10. Yes.

  Further, the crosspiece member 20 penetrates the upper connecting portion 23 and has a long bolt insertion hole 23a, and a pair of opening protrusions protruding from the inner surfaces of the upper contact portion 22 and the lower contact portion 25. A strip 27 and a pair of top plate ridges 28 projecting from the lower surface of the top plate portion 21 are provided. The bolt insertion hole 23 a is formed at the same height as the center height between the pair of opening protrusions 27 in the upper connection portion 23. Further, the bolt insertion hole 23 a is formed in a portion close to one end in the longitudinal direction of the crosspiece member 20. The opening protrusion 27 on the upper contact portion 22 side protrudes from a position above the lower end of the upper contact portion 22. The opening protrusion 27 on the lower contact portion 25 side protrudes from the upper end of the lower contact portion 25. The pair of top plate ridges 28 protrude from positions symmetrical with respect to the insertion portion 26.

  The crosspiece member 20 is formed by drilling an insertion portion 26 and a bolt insertion hole 23a in an aluminum alloy extrusion mold member extending in a single cross-sectional shape. In the present embodiment, the vertical dimension of the opening 20a of the crosspiece member 20 is formed to be 30 mm to 50 mm so that the operator's finger can enter.

  As shown in FIG. 7, the lower nut member 30 penetrates the flat plate-like main body portion 31, the bulging portion 32 bulging from one side surface of the main body portion 31, the bulging portion 32, and the main body portion 31. And a pair of groove portions 34 formed on both outer sides of the bulging portion 32 and extending in parallel with each other.

  The length of the main body portion 31 in the direction orthogonal to the pair of groove portions 34 is longer than the interval between the pair of opening protrusions 27 in the crosspiece member 20, and is longer than the interval between the top plate portion 21 and the lower connection portion 24. Also short. The bulging portion 32 has a length in the direction orthogonal to the pair of groove portions 34 slightly shorter than the vertical dimension of the opening 20a of the crosspiece member 20, and the length protruding from the main body portion 31 is the upper contact portion 22 and the lower portion. It is shorter than the thickness of the contact part 25. The pair of groove portions 34 are formed so that the pair of opening protrusions 27 are inserted at the same interval as the interval between the pair of opening protrusions 27 of the crosspiece member 20. The pair of groove portions 34 has a side corresponding to the opening protrusion 27 on the upper contact portion 22 side away from the end side of the bulging portion 32, and corresponds to the opening protrusion 27 on the lower contact portion 25 side. The side of the bulging portion 32 is continuous with the end side.

  The lower nut member 30 extends in a single cross-sectional shape, and is formed to have the same length (width) as the lower fixing piece 12 of the lower fixing member 10. The female screw hole 33 is formed at the center in the direction in which the groove portion 34 extends and between the pair of groove portions 34. The lower nut member 30 is formed of a metal such as an aluminum alloy or stainless steel.

  As shown in FIG. 8, the upper fixing member 40 includes a rectangular and flat upper base piece 41, and a pair of upright pieces 42 extending upward from two parallel sides of the upper base piece 41. A pair of upper fixing pieces 43 extending outward from the upper ends of the pair of standing pieces 42, an upper fixing hole 44 penetrating the upper base piece 41, and extending downward from one of the pair of standing pieces 42. A leg piece 45 that protrudes and a guide piece 46 that extends downward from the other standing piece 42 shorter than the leg piece 45 are provided.

  As for a pair of standing piece 42, the latching protrusion 42a protrudes from the side surface which mutually faces. The locking protrusion 42a is for attaching a gap cover (not shown) for closing the gap between the solar cell modules 2 fixed on the roof.

  Of the pair of upper fixing pieces 43, the same side as the leg pieces 45 is a first upper fixing piece 43a, and the opposite side is a second upper fixing piece 43b. The first upper fixing piece 43a is inclined so as to become lower toward the distal end side, then bent near the distal end, and inclined so as to become higher toward the distal end. The second upper fixed piece 43 b extends in parallel with the upper base piece 41. The lower end of the guide piece 46 swells toward the leg piece 45 side.

  In the upper fixing member 40, the distance from the lower surface of the first upper fixing piece 43 a to the lower end of the leg piece 45 is slightly shorter than the vertical dimension (thickness) of the solar cell module 2. The upper fixing member 40 is formed by cutting an aluminum alloy extrusion mold member having a single cross-sectional shape to a length of 50 mm to 100 mm and then drilling an upper fixing hole 44. The upper fixing hole 44 is formed at the center in the extrusion direction.

  As shown in FIG. 9, the upper nut member 50 includes a rectangular flat plate-shaped main body 51, a female screw hole 52 passing through the main body 51, and a pair extending in parallel on the upper surface of the main body 51. The groove part 53 is provided. The female screw hole 52 is formed at the center of the main body 51. The pair of groove portions 53 are formed so that the top plate ridges 28 are inserted at the same intervals as the pair of top plate ridges 28 of the crosspiece member 20. The upper nut member 50 is formed of a metal such as an aluminum alloy or stainless steel.

  As shown in FIG. 10, the ground metal fitting 60 protrudes from a rectangular and flat body portion 61, an insertion hole 62 passing through the center of the body portion 61, and the upper surface and the lower surface of the body portion 61, and the tip thereof is A plurality of pointed piercing pieces 63 and a pair of flange portions 64 extending downward from a pair of long sides of the main body portion 61 are provided. The main body 61 is formed such that the long side is longer than the distance between the tips of the pair of upper fixing pieces 43 of the upper fixing member 40, and the short side is slightly larger than the width of the top plate part 21 of the crosspiece member 20. It is formed long. The plurality of piercing pieces 63 are provided in the main body portion 61 near the ends in the longitudinal direction. The earth metal fitting 60 is formed by press-forming a thin stainless steel plate.

  The eaves cover 70 has a rectangular and flat bottom wall piece 71, a standing wall piece 72 extending upward from one long side of the bottom wall piece 71, and an upper side of the standing wall piece 72 upward from the bottom wall piece 71. The upper wall piece 73 that extends shorter and parallel to the bottom wall piece 71 and the long side opposite to the standing wall piece 72 of the upper wall piece 73 extend obliquely from the other long side of the bottom wall piece 71. The inclined wall piece 74, the extended wall piece 75 extending downward from the lower end of the inclined wall piece 74 on the same plane as the inclined wall piece 74, and the standing wall piece 72 protruding to the opposite side of the bottom wall piece 71. And a locking piece 76 (see FIG. 4).

  In the eaves cover 70, the distance from the bottom surface of the bottom wall piece 71 to the top surface of the upper wall piece 73 is the same as the thickness of the solar cell module 2. The extension wall piece 75 extends downward longer than the inclined wall piece 74. The locking piece 76 extends from the upright wall piece 72 at a right angle and then extends upward, and its upper end is bent slightly toward the upright wall piece 72 side. The locking piece 76 forms a space between the standing wall piece 72 and the lower end of the guide piece 46 in the upper fixing member 40. The eaves cover 70 is obtained by cutting an aluminum alloy extruded mold member extending in a single cross-sectional shape into the same length as the long side of the solar cell module 2.

  Next, a method of constructing the fixing structure 1 of the present embodiment by fixing the solar cell module 2 on the roof will be described mainly with reference to FIGS. First, the plurality of lower fixing members 10 are attached on the roof material 3 so that the pair of lower fixing pieces 12 are parallel to the inclination direction of the roof. In this embodiment, the attachment member 6 is attached to the roofing material 3 at intervals in the inclination direction and the lateral direction of the roof, and the male screw portion 6a protruding upward from the attachment member 6 is connected to the lower attachment hole 16. The lower fixing member 10 is mounted on the roofing material 3 by inserting it from below and tightening the nut 6b (see FIG. 3). Thereafter, the crosspiece member 20 is inserted from above between the pair of lower fixing pieces 12 of the plurality of lower fixing members 10 arranged in the inclined direction. At this time, in the crosspiece member 20, the end portion close to the bolt insertion hole 23a is directed to the eaves side of the roof.

  Then, the fixing of the crosspiece member 20 is started from the lower fixing member 10 located closest to the eaves side. First, the crosspiece member 20 is appropriately moved in the inclination direction of the roof so that the bolt insertion hole 23a overlaps with the lower fixing hole 13 of the eaves-side lower fixing member 10.

  Subsequently, at a position near the lower fixing member 10, the lower nut member 30 is inserted into the interior through the opening 20 a between the upper contact portion 22 and the lower contact portion 25 of the crosspiece member 20. At this time, the lower nut member 30 is inserted into the crosspiece member 20 with the bulging portion 32 facing upward and the groove portion 34 away from the bulging portion 32 being inclined. (See FIG. 11A and FIG. 12).

  Then, the lower nut member 30 is erected and moved to the upper contact portion 22 and the lower contact portion 25 side so that the bulged portion 32 that is inclined in the crosspiece member 20 becomes vertical. The bulging portion 32 is inserted between the upper contact portion 22 and the lower contact portion 25, and a pair of opening protrusions 27 are inserted into the pair of groove portions 34, respectively (FIGS. 11B and 11C). ) And FIG. 13 (c)).

  In this state, the lower nut member 30 is slid toward the lower fixing member 10 so that the female screw hole 33 faces the lower fixing hole 13. At this time, since the length (width) in the inclination direction of the roof of each of the lower fixing piece 12 and the lower nut member 30 is the same, the end side of the lower nut member 30 is the same as that of the lower fixing piece 12. The female screw hole 33 can be easily faced to the lower fixing hole 13 simply by sliding until it coincides with the end side (see FIG. 13D).

  Then, the male screw portion 4 a of the lower bolt 4 is screwed into the female screw hole 33 through the lower fixing hole 13 and lightly tightened. As a result, the lower fixing piece 12, the upper contact portion 22, and the lower contact portion 25 are sandwiched between the lower nut member 30 and the head of the lower bolt 4, and the crosspiece member 20 is moved to the lower fixing member. 10 is temporarily fixed. In the eaves-side lower fixing member 10, as the lower bolt 4, the male screw portion 4 a is longer than the distance between the pair of lower fixing pieces 12. By screwing the long lower bolt 4, the tip of the male screw portion 4 a passes through the bolt insertion hole 23 a and the lower fixing hole 13 and protrudes outward from the opposite lower fixing piece 12 ( (See FIG. 3 (a)). Accordingly, even if the lower bolt 4 is loosened, the crosspiece member 20 can be prevented from moving in the eave direction by the male screw portion 4a passing through the bolt insertion hole 23a and the lower fixing hole 13.

  When the crosspiece member 20 is temporarily fixed by the lower nut member 30 and the lower bolt 4 in the lower fixing member 10 closest to the eaves side, the lower nut is also applied to the lower fixing member 10 closer to the ridge side in the same manner as described above. The crosspiece member 20 is temporarily fixed using the member 30 and the lower bolt 4. The lower bolt 4 used at this time has a length that allows the male screw portion 4a to penetrate the lower nut member 30 (see FIG. 3B).

  And in each lower fixing member 10, the height by which the crosspiece member 20 is fixed can be adjusted within the range of the up-and-down length of the lower fixing hole 13, as shown in FIG. Therefore, the height of the crosspiece member 20 temporarily fixed to each lower fixing member 10 is adjusted so that the upper surfaces of the plurality of crosspiece members 20 are on the same plane, and then the lower bolt 4 is firmly tightened to fix the bottom. The crosspiece member 20 is fastened and fixed to the member 10. Thereafter, of the pair of lower fixing pieces 12, the upper connecting portion is passed through the screw hole 14 of the lower fixing piece 12 opposite to the lower fixing piece 12 with which the upper contact portion 22 and the lower contact portion 25 of the crosspiece member 20 are in contact. Screw the screw 7 into 23. With this screw 7, it is possible to restrict the movement of the crosspiece member 20 in the vertical direction and the inclined direction with respect to the lower fixing member 10.

  Next, the upper fixing member 40 is assembled to the eaves cover 70. As shown in FIG. 15, the lower end of the guide piece 46 of the upper fixing member 40 is inserted into the space between the standing wall piece 72 and the locking piece 76 of the eaves cover 70 from the longitudinal end portion of the eaves cover 70. . In a state where the upper fixing member 40 is assembled to the eaves cover 70, the second upper fixing piece 43 b is in contact with the upper wall piece 73. The eaves cover 70 is assembled with the same number (two in this case) of upper fixing members 40 as the crosspiece members 20 straddling.

  With the eaves cover 70 assembled with the upper fixing member 40, the bottom wall piece 71 is attached to the crosspiece member 20 so that the extended wall piece 75 is closer to the eaves side with the inclined wall piece 74 facing the eaves side. Place on (top plate portion 21). At this time, the eaves cover 70 is placed so as to be even in the lateral direction of the roof with respect to the plurality of crosspiece members 20 placed across. Then, the upper fixing member 40 assembled to the eaves cover 70 is slid in the lateral direction of the roof and positioned above the crosspiece member 20.

  Subsequently, the upper nut member 50 is inserted into the opening 20a of the crosspiece member 20 with the surface on which the groove portion 53 is formed facing upward, and a pair of top plate projections are inserted into the pair of groove portions 53. Each of the strips 28 is inserted, and the upper surface is brought into contact with the lower surface of the top plate portion 21. Then, the upper nut member 50 is slid in the longitudinal direction of the crosspiece member 20 (inclination direction of the roof) so that the female screw hole 52, the insertion portion 26, and the upper fixing hole 44 are communicated vertically. In this state, the male screw portion 5a of the upper bolt 5 is screwed into the female screw hole 52 from above through the upper fixing hole 44 and the insertion portion 26 and tightened. Moreover, the flat end cover 77 is attached to the both ends of the eaves cover 70 in the longitudinal direction by screws 8 (see FIGS. 1 and 5). As a result, the eaves cover 70 is fixed to the crosspiece member 20.

  Next, the edge on the long side of the solar cell module 2 is inserted between the first upper fixing piece 43a of the upper fixing member 40 fixing the eaves cover 70 and the crosspiece member 20 from the ridge side. Specifically, the solar cell module 2 is placed obliquely with respect to the crosspiece member 20 with the eave side edge placed on the crosspiece member 20 and the ridge side edge positioned above the crosspiece member 20. State. Then, the eave side edge is inserted between the first upper fixed piece 43a and the crosspiece member 20, and then the eave side edge is placed on the crosspiece member 20 and slid to the eave side. (See FIGS. 17 (a) and (b)). Thereby, the upper surface of the eaves side edge of the solar cell module 2 is pressed against the crosspiece member 20 by the first upper fixing piece 43a, and the eaves side edge of the solar cell module 2 is connected to the crosspiece member 20 and the upper fixing member 40. It will be in the state of being pinched and fixed. At this time, since the tip of the first upper fixing piece 43a is bent obliquely upward, the edge of the solar cell module 2 can be easily inserted.

  On the other hand, it is inserted into the interior of the crosspiece member 20 through another upper fixing member 40 in which the first upper fixing piece 43a is directed toward the ridge side and the opening 20a in a portion of the crosspiece member 20 that is closer to the ridge side than the solar cell module 2. Another upper nut member 50 is temporarily assembled by the upper bolt 5 so as to be movable in the inclination direction of the roof (see FIGS. 16 and 17). At this time, the ground metal fitting 60 is disposed between the top plate portion 21 and the upper fixing member 40, and the male screw portion 5 a of the upper bolt 5 is passed through the insertion hole 62.

  When the ridge side edge of the solar cell module 2 inclined with respect to the crosspiece member 20 as described above is placed on the crosspiece member 20, the upper fixing member 40 temporarily assembled on the ridge side and The upper nut member 50 is slid to the eaves side, and a part of the ground metal fitting 60 is inserted between the solar cell module 2 and the crosspiece member 20 (see FIG. 17B). In this state, after the upright piece 42 on the second upper fixing piece 43b side of the upper fixing member 40 is brought into contact with the solar cell module 2, the upper bolt 5 is tightened. At this time, the second upper fixing piece 43b of the upper fixing member 40 abuts on the upper surface of the solar cell module 2, and the leg piece 45 abuts on the upper surface of the crosspiece member 20 (the ground metal fitting 60). Will not fall down.

  As a result, the second upper fixing piece 43b presses the upper surface of the solar cell module 2 against the crosspiece member 20, and the piercing piece 63 of the grounding metal piece 60 pierces the lower surface of the solar cell module 2 and the upper surface of the crosspiece member 20. The edge of the solar cell module 2 on the ridge side is fixed (see FIGS. 4 and 17C). At this time, the piercing piece 63 of the ground metal fitting 60 breaks through an insulating film such as an oxide film or a paint film formed on the surface of each of the solar cell module 2 and the crosspiece member 20 and pierces the metal portion, thereby grounding. The solar cell module 2 and the crosspiece member 20 are electrically connected via the metal fitting 60.

  Subsequently, in a state where the solar cell module 2 arranged next to the ridge is inclined, the edge on the eave side is inserted between the first upper fixing piece 43a and the grounding metal 60, and the same as described above. It fixes to the crosspiece 20 by a procedure (refer FIG.17 (c)). Then, when the edge on the ridge side of the solar cell module 2 is brought into contact with the crosspiece member 20, the remaining piercing piece 63 of the grounding metal piece 60 pierces the lower surface of the eave side edge and the crosspiece member 20. Then, the fixing structure 1 of the solar cell module 2 in which the solar cell module 2 is fixed on the roof is constructed by fixing the edge on the ridge side of the solar cell module 2 to the crosspiece member 20 in the same procedure as described above. can do.

  Thus, according to this embodiment, since the opening 20a is not formed in the upper connection part 23 of the crosspiece member 20, no matter what height the crosspiece member 20 is adjusted, the lower fixing piece The screw 7 can be screwed into the upper connection portion 23 through the screw hole 14 formed in the screw 12. Thereby, the screw hole 14 for preventing the crosspiece member 20 from falling can be formed in the lower fixed piece 12 in advance, and the drilling operation of the screw hole 14 on the roof can be eliminated.

  Moreover, since it is not necessary to screw the screw 7 through the screw hole 14 on the side surface provided with the opening portion 20a on both side surfaces of the crosspiece member 20, the vertical dimension of the opening portion 20a is made larger so that the operator's finger It can be easy to insert. As a result, with the operator holding the lower nut member 30, the operator inserts the lower nut member 30 into the interior of the crosspiece member 20 from the opening 20 a, or lowers the inner surface of the upper contact portion 22. It is possible to easily perform an operation of making the inner surface of the contact portion 25 abut or sliding the lower nut member 30 inserted therein toward the lower fixing piece 12 side.

  Further, the lower nut member 30 and the upper nut member 50 can be inserted into the inside from the side surface side of the crosspiece member 20 through the opening 20a of the crosspiece member 20. Thus, unlike the conventional case, it is not necessary to insert the lower nut member 30 or the upper nut member 50 from the longitudinal end of the crosspiece member 20 and slide a long distance to the tightening portion, and in the vicinity of the tightening portion. By inserting the lower nut member 30 and the like into the crosspiece member 20 through the opening 20a, the distance for sliding the lower nut member 30 and the like can be shortened.

  Further, the pair of opening protrusions 27 of the crosspiece member 20 are respectively inserted into the two groove portions 34 of the lower nut member 30, so that the opening portion 20 a is expanded or narrowed due to the deformation of the crosspiece member 20. Can be regulated by the lower nut member 30. Further, when the pair of top plate protrusions 28 of the crosspiece member 20 are respectively inserted into the two groove portions 53 of the upper nut member 50, the insertion portion 26 extending in the longitudinal direction is expanded or narrowed. Can be regulated by the upper nut member 50. By these, since the deformation | transformation of the crosspiece member 20 can be suppressed, stability of the fixing structure to the roof of the solar cell module 2 can be improved.

  In addition, since the upper fixing member 40 is provided with the leg pieces 45 that come into contact with the crosspiece member 20, one upper fixing piece 43 of the pair is brought into contact with the solar cell module 2, and the leg piece 45 is attached to the crosspiece member. When the upper bolt 5 and the upper nut member 50 are tightened while being in contact with the upper member 20, the solar cell module 2 can be fixed to the crosspiece member 20 without the upper fixing member 40 falling down.

  Further, when the plurality of solar cell modules 2 are fixed in the inclination direction of the roof, the solar cell modules 2 can be fixed in order from the eaves side with respect to the inclination direction of the roof. It is not necessary to take a posture so as to straddle 2 and work can be performed in a comfortable posture. Further, it is not necessary to arrange a plurality of solar cell modules 2 before fixing to the crosspiece member 20.

  Thus, according to this embodiment, the trouble of the fixing operation on the roof of the solar cell module 2 can be reduced.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the above-described embodiments, and various improvements and design changes can be made without departing from the scope of the present invention. It is.

  For example, in the above embodiment, an example in which the eaves cover 70 is attached is shown, but the present invention is not limited to this, and the eaves cover 70 may not be attached. In this case, let the upper fixing member 40 attached to the eaves side most be the state where the leg piece 45 (1st upper fixing piece 43a) has faced the eaves side. As a result, the axis of the upper bolt 5 passes between the second upper fixing piece 43b and the leg piece 45. Therefore, when the upper bolt 5 is tightened, the second upper fixing piece is more than the first upper fixing piece 43a. Since the force of 43b pressing downward acts more strongly, the solar cell module 2 can be strongly fixed.

  In the above embodiment, as the crosspiece member 20, the boundary between the upper connection portion 23 and the lower connection portion 24 is curved. However, the present invention is not limited to this and is bent at a right angle. Alternatively, it may be bent in a chamfered shape.

  Further, in the above-described embodiment, as the crosspiece member 20, the insertion portion 26 penetrating the top plate portion 21 extends shorter than the full length of the crosspiece member 20 (form not extending over the full length). However, the present invention is not limited to this, and a crosspiece member 80 having a configuration as shown in FIG. 18 may be used. The crosspiece member 80 includes a rectangular and flat top plate portion 81, an upper contact portion 82 extending downward from one long side of the top plate portion 81, and an upper contact portion from the other long side of the top plate portion 81. An upper connection portion 83 extending downward from 82, a lower connection portion 84 extending from the lower side of the upper connection portion 83 to below the upper contact portion 82, and an upper contact portion 82 from the tip side of the lower connection portion 84. A space is provided between the lower plate 85 and the top plate 81 that extends upward on the same surface and forms an opening 80a with a constant space between the upper plate 82 and the upper plate 82. A connecting portion 86 that connects the upper contact portion 82 and the upper connecting portion 83, and an insertion portion 87 that penetrates the top plate portion 81 and extends over the entire length in the longitudinal direction.

  Further, the crosspiece member 80 protrudes from the inner side surfaces of the upper contact portion 82 and the lower contact portion 85 and is inserted into the pair of groove portions 34 of the lower nut member 30, respectively, A pair of top plate ridges 89 projecting from positions symmetrical to the insertion portion 87 on the lower surface of the plate portion 81 and inserted into the pair of groove portions 53 of the upper nut member 50, respectively. In the crosspiece member 80, similarly to the crosspiece member 20, a bolt insertion hole 83 a is formed in the upper connection portion 83. This crosspiece member 80 can also provide the same effects as described above.

  Further, in the above-described embodiment, the upper fixing member 40 includes a pair of standing pieces 42 extending upward from the pair of sides of the upper base piece 41, respectively, and the upper fixing pieces from the upper ends of the pair of standing pieces 42. However, the present invention is not limited to this, and the pair of upper fixing pieces may extend directly from the pair of sides of the upper base piece. In this case, it is desirable to extend the leg piece and the guide piece downward from the pair of sides of the upper base piece, respectively.

  In the above embodiment, the upper nut member 50 is shown in which the female screw hole 52 is formed in the flat plate-like main body 51. However, the present invention is not limited to this, and a general hexagon nut or the like is used. Also good as a nut. In the above embodiment, the upper bolt 5 is screwed into the upper nut member 50 in the crosspiece member 20 from above the upper fixing member 40. However, the present invention is not limited to this. The upper bolt 5 is inserted into the crosspiece member 20 through the opening 20a and is extended upward through the insertion portion 26 and the upper fixing hole 44. A nut may be screwed together.

DESCRIPTION OF SYMBOLS 1 Fixing structure 2 Solar cell module 3 Roof material 4 Lower bolt 4a Male screw part 5 Upper bolt 5a Male screw part 10 Lower fixing member 11 Lower base piece 12 Lower fixing piece 13 Lower fixing hole 14 Screw hole 20 Crosspiece member 20a Opening Portion 21 top plate portion 22 upper contact portion 23 upper connection portion 24 lower connection portion 25 lower contact portion 26 insertion portion 27 opening protrusion 30 lower nut member 33 female screw hole 34 groove portion 40 upper fixing member 41 upper base piece 42 Piece 43 upper fixing piece 44 upper fixing hole 45 leg piece 50 upper nut member 52 female screw hole

Claims (3)

A lower fixing member mounted on the roof; a crosspiece member extending long in the inclination direction of the roof and on which the solar cell module is placed; and the lower fixing member in cooperation with a lower bolt A lower nut member fastened and fixed to the upper surface, an upper fixing member in contact with the upper surface of the solar cell module, and the solar cell module in cooperation with an upper bolt, the crosspiece member and the upper fixing member A fixing structure of a solar cell module comprising an upper nut member sandwiched and fixed between
The lower fixing member is
A flat bottom base piece;
A pair of plate-like lower fixing pieces projecting from the lower base piece at an interval;
Penetrating each lower fixing piece, and a lower fixing hole that is long in the vertical direction,
A screw hole penetrating each of the lower fixing pieces,
The crosspiece is
A rectangular top plate having a shorter short side than the distance between the pair of lower fixed pieces;
An upper contact portion extending downward from one long side of the top plate portion;
An upper connection portion extending downward from the upper contact portion from the other long side of the top plate portion;
A lower connection portion extending from a lower side of the upper connection portion to a position below the upper contact portion;
A lower abutting portion that extends upward from the front end side of the lower connecting portion on the same plane as the upper abutting portion, and that forms openings with a constant interval between the upper abutting portion;
An insertion portion extending in the longitudinal direction of the top plate portion, and the upper contact portion and the lower contact portion are in contact with an inner surface of one of the lower fixing pieces. Touching,
The lower nut member is
A flat plate-shaped main body portion whose fixing direction is longer than the interval between the opening portions and shorter than the interval between the top plate portion and the lower connection portion;
A female screw hole penetrating the main body, and is inserted into the crosspiece member through the opening, and one end side of the main body in the fixing direction is an inner portion of the upper contact portion. The other end side of the side surface is in contact with the inner side surface of the lower contact part,
The lower bolt is
Of the pair of lower fixing pieces, the upper fixing portion and the male screw portion penetrating the lower fixing hole and the opening of the lower fixing piece that are in contact with the lower contacting portion are formed in the female screw hole . A structure for fixing a solar cell module, which is screwed and tightened. The crosspiece is
Projecting from the respective inner side surfaces of the upper contact portion and the lower contact portion, and further comprising a pair of opening ridges extending in the longitudinal direction,
The lower nut member is
The solar cell module fixing structure according to claim 1, wherein a groove portion into which the pair of opening protrusions are inserted is formed in the main body portion. The upper fixing member is
A flat upper base piece;
A pair of upper fixing pieces that respectively extend from a pair of sides of the upper base piece and are in contact with the upper surface of the solar cell module;
An upper fixing hole penetrating the upper base piece, through which the male screw portion of the upper bolt is inserted,
3. A leg piece extending downward from one of the pair of sides of the upper base piece and having a lower end abutting against the crosspiece member. Solar cell module fixing structure.

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