JP2014020057A - Frame bar fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing structure capable of resisting a force in a direction where frame bars are separated from each other.SOLUTION: A frame bar fixing structure includes: a first frame bar (rafter receiver 10) provided with an accommodation groove 11; a first reinforcing member 50 accommodated in the accommodation groove 11; a second reinforcing member 70 positioned at the outside of the accommodation groove 11; and a second frame bar (rafter 30) in which a locking plate piece 32a is formed. A pair of locking parts 13 are formed in the accommodation groove 11; a wall part 52 for temporary fixing is formed in the first reinforcing member 50; a screw hole 55 through which a screw Va for temporarily fixing the first reinforcing member 50 to a groove side wall 12 passes is formed in the wall part 52 for temporary fixing; and the first reinforcing member 50 abuts with the locking parts 13 and the second reinforcing member 70 abuts with the locking parts 13 and the locking plate piece 32a. A shank of a bolt Ba is inserted through the first reinforcing member 50 and the second reinforcing member 70, and the first reinforcing member 50, the second reinforcing member 70, the locking parts 13, and the locking plate piece 32a are fastened and held by the bolt Ba and a nut Na.

Description

  The present invention relates to a frame material fixing structure.

  Conventionally, a solar panel mount for fixing a solar panel (solar cell panel, solar water heater, etc.) is generally a frame material assembled in a lattice shape. As a fixing structure between the frame members, there is a structure as shown in Patent Document 1. In this fixing structure, when the frame members are fixed to each other, a fixing bracket is fixed to one frame member, and the other frame member is fixed to the fixing bracket. One frame member has a groove formed with a pair of locking portions extending inwardly from the groove sidewalls on both sides, and a fixing bracket is accommodated in the groove so as to be inside the locking portion. Abutted and locked.

JP 2003-35016 A

  In the fixing structure, it could not be said that the structure has sufficient bonding strength against the force (negative pressure) in the direction in which the upper frame material is pulled upward (the direction in which the frame materials are separated from each other). . That is, when a large negative pressure is generated, there is a possibility that the fixing bracket is pulled outward, the locking portion is rolled up and separated from the frame material. In particular, in the solar panel mount, since a large stress is generated to lift the solar panel by wind pressure in a strong wind or the like, it is necessary to be able to withstand negative pressure.

  From such a viewpoint, an object of the present invention is to provide a frame material fixing structure that can withstand a force in a direction in which the frame materials are separated from each other.

  The invention according to claim 1 for solving such a problem includes a first frame member provided with an accommodation groove in which the head of the bolt is accommodated, and a first reinforcing member accommodated in the accommodation groove. A pair of second reinforcing members positioned outside the housing groove and a second frame member on which a locking plate piece is formed, the pair of housing grooves extending inward from the groove side walls on both sides. The first reinforcing member is provided with a temporary fixing wall portion that hangs down along the groove side wall, and the temporary reinforcing wall portion includes the first reinforcing member. A screw hole through which a screw for temporarily fixing a member to the groove side wall is inserted is formed, the first reinforcing member abuts on the locking portion, and the second reinforcing member is the locking portion. And the abutting plate piece, and the first reinforcing member and the second reinforcing member are A frame material characterized in that the first reinforcing member, the second reinforcing member, the locking portion, and the locking plate piece are clamped and clamped by the bolts and nuts. This is a fixed structure.

  When the frame members are pulled away from each other and a tensile force is applied to the bolt, according to the above-described configuration, the first reinforcing member is supported by the head of the bolt. Since the contact area with the engaging portion is increased, the surface pressure applied to the engaging portion can be reduced. Accordingly, it can withstand a force in a direction in which the frame members are separated from each other (hereinafter sometimes referred to as “negative pressure”). Moreover, since the latching | locking part and the latching plate piece are pinched | interposed by the 1st reinforcement member and the 2nd reinforcement member, a deformation | transformation of a frame material (locking part) can be suppressed. Further, by temporarily fixing the temporarily fixing wall portion of the first reinforcing member to the groove side wall of the housing groove with a screw, it can be used as a guide when the second frame material is installed on the first frame material. Therefore, the positioning of the first frame material can be easily performed, and the installation work is facilitated.

  According to a second aspect of the present invention, the first frame material is arranged such that the longitudinal direction thereof is a horizontal direction, and the second frame material is inclined while the longitudinal direction thereof is inclined with respect to the horizontal direction. The first frame member is disposed so as to intersect the first frame material, the locking portion is in surface contact with the lower surface of the second frame material in a state of being inclined with respect to a horizontal plane, and the first reinforcing member is It is characterized by being inclined along the part.

  According to such a configuration, even when the second frame member is installed with an inclination, the first reinforcing member makes surface contact with the locking portion, so that the contact area can be increased. Therefore, it is possible to reduce the surface pressure applied to the locking portion and to withstand a large negative pressure.

  The invention according to claim 3 is characterized in that the temporary fixing wall portion is formed at an upper end of the first reinforcing member arranged in an inclined manner.

  According to such a configuration, since the hanging length of the temporary fixing wall portion can be increased, the strength of the first reinforcing member can be increased and the screw hole can be easily processed.

  The invention according to claim 4 is characterized in that a lower end portion of the temporary fixing wall portion is in contact with a bottom portion of the accommodation groove.

  According to such a configuration, since the first reinforcing member is stabilized in the housing groove, it is easy to perform temporary fixing. Furthermore, the first reinforcing member can be fixed at a predetermined position, and the installation work of the first reinforcing member can be facilitated.

  According to a fifth aspect of the present invention, the first reinforcing member has a pair of bolt rotation prevention protrusions protruding toward the bottom of the receiving groove, and the pair of bolt rotation prevention protrusions is the bolt. It is characterized by facing across the head.

  According to such a configuration, it is possible to prevent the rotation only by installing the bolt and to increase the strength of the first reinforcing member.

  The invention according to claim 6 is characterized in that the first reinforcing member is configured to penetrate a pair of adjacent bolts along the longitudinal direction of the groove in the accommodation groove.

  According to such a configuration, since the frictional force between the first reinforcing member and the locking portion can be increased, the sliding of the first reinforcing member and the bolt / nut in the groove longitudinal direction can be suppressed. Furthermore, since a pair of adjacent bolts can be fixed with a single first reinforcing member, the labor required for construction is reduced.

  The invention according to claim 7 is characterized in that the locking plate piece extends from the lower end of the second frame member to both sides in the width direction and between the shaft portions of the pair of bolts penetrating the first reinforcing member. And the side edge portion of the second reinforcing member presses and locks the front end portion in the width direction of the locking plate piece.

  According to such a configuration, it is possible to reduce the weight of the second frame material. Furthermore, the locking plate pieces are formed on both sides in the width direction of the second frame material, and both sides in the width direction of the second frame material are locked, so that the fixing strength between the frame materials can be ensured.

  In the invention according to claim 8, a rising portion that rises upward is formed at the front end of the locking plate piece in the width direction, and a concave groove into which the rising portion enters is formed on the lower surface of the second reinforcing member. It is characterized by.

  According to such a configuration, since the locking plate piece and the second reinforcing member are engaged with each other, the fixing strength between the frame members is improved.

  The invention according to claim 8 is characterized in that the frame material constitutes a solar panel mount for supporting the solar panel.

  According to such a configuration, even if a large wind pressure acts in the direction in which the solar panel is lifted, the frame members are not easily separated from each other, so that it is possible to provide a solar panel mount with high wind resistance.

  According to the structure for fixing a frame material according to the present invention, it is possible to withstand a force in a direction in which the frame materials are separated from each other.

It is the perspective view which showed the solar panel mount. It is the side view which showed the solar panel mount. It is the figure which showed the state which installed the solar panel in the solar panel mount, Comprising: It is S arrow view of FIG. It is sectional drawing which showed the fixing structure of the frame material which concerns on 1st embodiment. It is the figure which showed the fixation structure of the frame material which concerns on 1st embodiment, Comprising: It is the sectional view on the AA line of FIG. It is the figure which showed the 1st reinforcement member, Comprising: (a) is the perspective view seen from diagonally upper side, (b) is the perspective view seen from diagonally lower side. It is the figure which showed the 2nd reinforcement member, Comprising: (a) is the perspective view seen from diagonally upper side, (b) is the perspective view seen from diagonally lower side. It is sectional drawing which showed the fixing structure of the frame material which concerns on other embodiment.

(First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, the fixing structure of the frame material will be described by taking as an example the case of joining the frame materials of the solar panel mount. First, the overall configuration of the solar panel mount will be described.

  As shown in FIG. 1, the solar panel mount 1 includes a rafter (second frame) for fixing rafter receivers (first frame members) 10 and 10 that support a rafter 30 and a solar panel 2 (see FIG. 3). (Frame material) 30, 30... And a support column 40 that supports the rafter receiver 10. In the present embodiment, when the solar panel mount 1 is viewed from the front side (the side where the rafter 30 is lowered), the front-rear direction is the vertical direction, and the left-right direction is the horizontal direction.

  The rafter receiver 10 extends in the lateral direction, and is arranged so that the longitudinal direction is the horizontal direction. The rafter receiver 10 is provided at two locations on the front side and the rear side. The front rafter receiver 10 is disposed at a position lower than the rear rafter receiver 10. The pair of rafter receivers 10 and 10 are arranged in parallel to each other with a space therebetween.

  As shown in FIG. 2, the rafter 30 extends in the vertical direction. The longitudinal direction of the rafter 30 is inclined with respect to the horizontal direction. As viewed from the front, the rafter 30 has a lower front and a higher rear. The rafter 30 is stretched over the rafter receivers 10 and 10. Both ends of the rafter 30 project outwardly from the pair of rafter receivers 10 and 10 respectively. The inclination angle of the rafter 30 matches the inclination angle of the solar panel 2.

  As shown in FIG. 1, a total of four support columns 40 are provided, two supporting the rafter receiver 10 on the front side and two supporting the rafter receiver 10 on the rear side. One rafter receiver 10 is supported by two struts 40 and 40. The two columns 40 and 40 that support the front rafter receiver 10 are shorter than the two columns 40 and 40 that support the rear rafter receiver 10. The support column 40 is fixedly supported on the head of the pile 41. The pile 41 is comprised, for example with the spiral pile in which the axial part was formed in the spiral shape, and the pile main-body part is embed | buried in the ground by pushing into the ground, rotating. In addition, the site | part in which the support | pillar 40 is installed is not limited to the head of the pile 41, For example, what is necessary is just a stable support surface, such as an independent foundation and a cloth foundation.

  A brace 45 is provided between the support column 40 that supports the front rafter receiver 10 and the support column 40 that supports the rear rafter receiver 10 frame. The brace 45 is bridged between the rafter receivers 10 and 10 positioned on the left side as viewed from the front and between the rafter receivers 10 and 10 positioned on the right side. A brace 45 is also provided between the front support columns 40. Further, a brace 45 is also provided between the two rear support columns 40, 40.

  As shown in FIG. 3, a plurality of solar panels 2 are installed on the solar panel mount 1. In the present embodiment, five solar panels 2 are arranged in the vertical direction and four in the horizontal direction, and a total of 20 solar panels 2 are placed on one solar panel mount 1. The The solar panel 2 is bridged between the rafters 30, 30 adjacent to the left and right, and the left end and the right end of the solar panel 2 are supported by the rafters 30, 30, respectively. In addition, the installation number of solar panels 2 and an installation form are examples, Comprising: It is not limited to the structure of this embodiment.

  As shown in FIGS. 4 and 5, the frame material fixing structure according to the present embodiment includes a solar panel mount 1 (see FIGS. 1 to 3) for supporting the solar panel 2 (see FIG. 3). This is a structure in which the frame members are fixed using bolts Ba and nuts Na. In the present embodiment, the frame material fixing structure includes a rafter receiver 10 (first frame material) including an accommodation groove 11 in which the head of the bolt Ba is accommodated, and a first reinforcement accommodated in the accommodation groove 11. The member 50, the 2nd reinforcement member 70 located in the exterior of the accommodation groove | channel 11, and the rafter 30 (2nd frame material) in which the latching plate piece was formed are provided.

  The rafter receiver 10 is made of a hollow extruded shape made of an aluminum alloy. As shown in FIG. 4, the rafter receiver 10 has a trapezoidal cross section (lateral trapezoidal shape). The upper end surface of the rafter receiver 10 is inclined in the width direction with respect to the horizontal direction. The inclination angle of the upper end surface of the rafter receiver 10 is equal to the inclination angle of the rafter 30. An accommodation groove 11 is formed at the upper end of the rafter receiver 10. The accommodation groove 11 accommodates the head of the bolt Ba with the shaft portion of the bolt Ba facing upward.

  The accommodation groove 11 has a quadrangular cross-sectional shape with an inclined upper end surface. A pair of locking portions 13, 13 that extend inward from the groove sidewalls 12 a, 12 b on both sides are formed at the upper opening end of the receiving groove 11. The locking portions 13 are formed over the entire length of the rafter receiver 10 in the longitudinal direction. The locking portions 13, 13 are both inclined with respect to the horizontal direction when viewed in the cross-sectional direction. Of the pair of locking portions 13, 13, the locking portion 13 extending from the groove side wall 12 a having a low height extends obliquely upward, and the locking portion 13 extending from the groove side wall 12 b having a high height. Extends obliquely downward. The locking portions 13 and 13 are inclined at the same inclination angle with respect to the horizontal direction, and are formed in the same plane. These locking portions 13, 13 constitute an inclined upper end surface of the rafter receiver 10.

  The locking portions 13, 13 are engaged with the first reinforcing member 50 to prevent the first reinforcing member 50 from being separated from the receiving groove 11. The clearance between the locking portions 13 and 13 has a width dimension through which the shaft portion of the bolt Ba can be inserted. A protrusion 14 for guiding the movement of the first reinforcing member 50 (hereinafter sometimes referred to as “guide protrusion 14”) is formed in the locking portion 13. The guide protrusion 14 is formed over the entire length of the housing groove 11 in the longitudinal direction. The guide protrusion 14 protrudes from the front end (inner end) in the width direction of the locking portion 13 into the groove.

  As shown in FIG. 5, the rafter 30 is made of a hollow extruded profile made of aluminum alloy. The rafter 30 includes a web portion 31 and flange portions 32, 32... Formed above and below the web portion 31. When the flange portion 32 is distinguished from the upper flange portion and the lower flange portion, they may be referred to as “upper flange portion 32b” and “lower flange portion 32a”. The upper flange portions 32b and 32b are provided so as to extend from the upper end of the web portion 31 in both outward directions (both sides in the thickness direction of the web portion 31). The lower flange portions 32 a and 32 a are provided so as to extend from the lower end of the web portion 31 in both outward directions (both sides in the thickness direction of the web portion 31). The lower flange portion 32 a constitutes a locking plate piece that is pressed by the second reinforcing member 70. Hereinafter, the lower flange portion 32a is referred to as a locking plate piece 32a. A rising portion 33 that rises upward is formed at the front end (outer end) in the width direction of the locking plate piece 32a.

  The cross-sectional shape of the web part 31 has a hollow trapezoidal shape with the lower side widened. An accommodation groove 34 into which a head portion of a bolt (not shown) for fixing the solar panel 2 (see FIG. 3) is inserted is formed at the upper end portion of the web portion 31. A pair of locking portions 35, 35 extending inward from the groove sidewalls on both sides are formed at the upper opening end of the receiving groove 34.

  As shown in FIGS. 4 and 6, the first reinforcing member 50 is made of an extruded shape made of an aluminum alloy. The first reinforcing member 50 includes a substrate portion 51 and a temporary fixing wall portion 52 that hangs down from the substrate portion 51. The board part 51 is a part sandwiched between the head of the bolt Ba and the locking part 13. The substrate part 51 is formed thicker than the locking part 13. The substrate portion 51 has a width dimension larger than the width of the gap between the locking portions 13, 13, and both ends of the substrate portion 51 in the width direction in a state where the first reinforcing member 50 is accommodated in the accommodation groove 11. The portion comes into contact with the lower surfaces of the locking portions 13 and 13. In a state where the first reinforcing member 50 is fixed, the upper surface of the substrate portion 51 is pressed against the lower surface of the locking portion 13 to generate a frictional force. Two bolt through holes 53, 53 are formed in the substrate portion 51 at intervals in the extrusion direction. A shaft portion of a bolt Ba for fixing the rafter 30 to the rafter receiver 10 is inserted into the bolt through hole 53. The distance between the bolt through holes 53 and 53 is such that the lower end of the rafter 30 can be disposed between the bolts Ba and Ba. A pair of bolts Ba, Ba adjacent to the bolt through holes 53, 53 along the longitudinal direction of the groove in the housing groove 11 (bolts Ba, Ba disposed outside the locking plate pieces 32a, 32a of the rafter 30). Is inserted.

  Two rows of guide grooves 54 and 54 along the extrusion direction are formed on the upper surface of the substrate portion 51. The guide groove 54 is formed at a position corresponding to the guide protrusion 14 at the tip of the locking portion 13. The two rows of guide grooves 54 and 54 are parallel to each other. The guide protrusion 14 enters the guide groove 54, and the movement of the first reinforcing member 50 is guided. A portion of the substrate portion 51 sandwiched between the two rows of guide grooves 54, 54 has a surface protruding upward and has a thick plate shape. The projecting dimension is substantially the same as the thickness dimension of the locking part 13, and the outer surface of the locking part 13 and the thickness of the substrate part 51 in a state where the first reinforcing member 50 is stored in the receiving groove 11. The surface of the plate part is substantially flush.

  A pair of bolt rotation preventing protrusions 56a and 56b for preventing the bolt Ba from rotating is formed on the lower surface of the substrate portion 51. The bolt rotation preventing protrusions 56 a and 56 b are formed along the longitudinal direction of the first reinforcing member 50. The internal dimension between the pair of bolt rotation prevention protrusions 56a and 56b is larger than the width of the two faces of the head of the bolt Ba and smaller than the diagonal distance. As a result, the bolt Ba is prevented from rotating while the head can be inserted between the bolt rotation preventing protrusions 56a and 56b. The bolt rotation preventing protrusions 56a and 56b have a projecting dimension shorter than the thickness of the head of the bolt Ba. The bolt rotation prevention protrusion 56b on the side close to the temporary fixing wall portion 52 has a shorter projecting dimension than the bolt rotation prevention protrusion 56b on the far side so as not to interfere with a temporary fixing screw Va described later. Yes.

  The temporary fixing wall portion 52 is provided at an end portion (upper end) disposed on the upper side when the substrate portion 51 is disposed at an inclination among the end portions in the width direction of the substrate portion 51. When the first reinforcing member 50 is housed in the housing groove 11, the temporary fixing wall portion 52 hangs down from the upper end of the substrate portion 51 along the groove side wall 12 b, and the outer surface of the temporary fixing wall portion 52 and the groove side wall are suspended. 12b abuts. That is, the temporary fixing wall portion 52 intersects the substrate portion 51 at an acute angle. Further, the hanging length of the temporary fixing wall portion 52 is set so that the lower end portion of the temporary fixing wall portion 52 comes into contact with the bottom portion of the housing groove 11. Note that the lower end portion of the temporary fixing wall portion 52 may not necessarily be in contact with the bottom portion of the housing groove 11, and may be configured to have a slight gap between the bottom portion of the housing groove 11. A screw hole 55 is formed in the temporary fixing wall portion 52. A screw Va (see FIG. 4) for temporarily fixing the first reinforcing member 50 to the groove side wall 12b is inserted into the screw hole 55. The screw hole 55 is formed at one place in a substantially middle portion in the extrusion direction. The position of the screw hole 55 is not limited to the middle portion, and the number of the screw holes 55 is not limited to one. A screw hole 15 through which the screw Va is inserted is also formed in the groove side wall 12b. The screw hole 15 is formed at a position corresponding to the screw hole 55 when the first reinforcing member 50 is installed at the mounting position.

  As shown in FIG. 5, the first reinforcing member 50 is arranged such that the pushing direction is the same as the groove longitudinal direction of the housing groove 11. The first reinforcing member 50 is formed to be longer than a normal washer so that a plurality of bolts Ba, Ba adjacent to each other along the longitudinal direction of the groove can pass therethrough. Specifically, the length dimension of the first reinforcing member 50 is a pair of second reinforcing members 70, 70 provided on both sides of the rafter 30 when viewed in the longitudinal direction of the receiving groove 11 (extrusion direction of the rafter receiver 10). It is set to be longer than the distance between the outer end portions.

  The second reinforcing member 70 is made of an extruded shape made of an aluminum alloy. The second reinforcing member 70 is arranged such that the extrusion direction is a direction (longitudinal direction of the rafter 30) perpendicular to the extrusion direction of the first reinforcement member 50. As shown in FIG. 7, the second reinforcing member 70 includes a substrate portion 71 and a wall plate portion 72, and the second reinforcing member 70 has an L-shaped cross section. The wall plate portion 72 is formed at one end of the substrate portion 71 in the width direction (a direction orthogonal to the extrusion direction).

  A bolt through hole 73 is formed at the center of the substrate portion 71. A shaft portion of a bolt Ba for fixing the rafter 30 to the rafter receiver 10 is inserted into the bolt through hole 73. The wall plate portion 72 is disposed on the side away from the rafter 30. The wall plate portion 72 protrudes downward from the end portion in the width direction of the substrate portion 71. The lower end portion of the wall plate portion 72 contacts the upper end surface of the rafter receiver 10 (the upper surface of the locking portion 13). The side edge portion which is the other end portion in the width direction of the substrate portion 71 (the side in contact with the locking plate piece 32a of the rafter 30) constitutes a pressing portion 74 that holds and holds the end portion of the locking plate piece 32a. ing. On the lower surface of the pressing portion 74, a concave groove 75 into which the rising portion 33 formed at the front end portion in the width direction of the locking plate piece 32a is formed.

  As shown in FIG. 5, the second reinforcing members 70 are disposed at both ends in the width direction of the rafter 30. When each second reinforcing member 70 is tightened by the bolt Ba and the nut Na, the locking plate pieces 32a on both sides of the rafter 30 are respectively pressed and locked by the second reinforcing member 70. At the same time, the wall plate portion 72 of the second reinforcing member 70 is pressed against the locking portion 13 of the rafter receiver 10.

Below, the procedure which fixes the rafter receptacle 10 and the rafter 30 by the fixing structure of the frame material which concerns on this embodiment is demonstrated.
As shown in FIG. 4, first, the shaft portions of the bolts Ba and Ba are inserted into the bolt through holes 53 and 53 from the lower surface (surface on which the bolt rotation prevention protrusions 56a and 56b are formed) side of the first reinforcing member 50. Insert. Then, the first reinforcing member 50 and the bolts Ba, Ba are inserted from the end portions of the receiving grooves 11, and the desired end portion of the shaft portion of the bolt Ba protrudes from the gap between the locking portions 13, 13. It is moved along the longitudinal direction of the groove to a position (position where the rafter 30 is fixed). At this time, the first reinforcing member 50 is slightly smaller than the internal dimension of the receiving groove 11, so that it does not get caught on the inner surface of the receiving groove 11. Further, since the guide protrusion 14 on the lower surface of the locking portion 13 enters the guide groove 54 on the upper surface of the substrate portion 51, the first reinforcing member 50 moves smoothly along the accommodation groove 11. Furthermore, since the lower end portion of the temporary fixing wall portion 52 is in contact with the bottom portion of the housing groove 11, the first reinforcing member 50 is placed in the housing groove 11 while the inclination angle of the first reinforcing member 50 is kept constant. Can be easily moved. When the first reinforcing member 50 is moved to a predetermined position, the screw Va is inserted into the screw hole 15 of the rafter receiver 10 and the screw hole 55 of the first reinforcing member 50, and the first reinforcing member 50 is attached to the rafter receiver 10. Temporarily fix.

  In this state, the rafter receiver 10 is transported to the site. Since the 1st reinforcement member 50 is temporarily fixed to the rafter receptacle 10 at the time of conveyance, the 1st reinforcement member 50 can be conveyed in the stable state, without rattling.

Then, at the construction site of the solar panel mount, after the rafter receiver 10 is installed on the support column 40, the rafter 30 is installed between the shafts of the bolts Ba and Ba protruding from the rafter receiver 10. The rafter 30 is installed across the pair of front and rear rafter receivers 10 and 10 so that the longitudinal direction thereof is orthogonal to the longitudinal direction of the rafter receiver 10. Here, a positioning screw Vb for determining the position of the rafter 30 relative to the rafter receiver 10 in the longitudinal direction is attached. The positioning screw Vb is struck from the lower side of the locking plate piece 32a so that the head of the positioning screw Vb protrudes from the bottom surface of the locking plate piece 32a. The longitudinal position of the rafter 30 is easily determined by the head of the positioning screw Vb coming into contact with the corner of the upper end surface of the rafter receiver 10.
Further, since the first reinforcing member 50 is temporarily fixed at a desired installation position, the protruding shaft portion of the bolt Ba serves as a guide for the installation position of the rafter 30 with respect to the rafter receiver 10. Therefore, the rafter 30 can be easily positioned in the longitudinal direction of the rafter receiver 10 only by being installed between the shaft portions of the bolts Ba and Ba. Therefore, installation work becomes easy.

  Then, the 2nd reinforcement members 70 and 70 are installed so that the front-end | tip part of the latching plate piece 32a of the rafter 30 may be hold | suppressed. The second reinforcing member 70 is lowered from above the bolt Ba with the wall plate portion 72 facing down, and the shaft portion of the bolt Ba is inserted through the bolt through hole 73. Then, the nut Na is attached to the tip of the shaft portion of the bolt Ba protruding from the substrate portion 71 of the second reinforcing member 70 and tightened. At this time, the head of the bolt Ba is in a state in which the rotation is blocked by the bolt rotation preventing protrusions 56a and 56b, so that the nut Na can be easily tightened. With this tightening, the bolt Ba and the nut Na clamp and clamp the first reinforcing member 50, the second reinforcing member 70, the locking portion 13, and the locking plate piece 32a. And while the wall-plate part 72 of the 2nd reinforcement member 70 presses the latching | locking part 13 of the rafter receptacle 10, the press part 74 presses and latches the edge part of the latching plate piece 32a. After the final fastening of the nut Na to the bolt Ba is completed, the screw Va may be removed or may be left as it is.

  According to the fixing structure of the frame material having such a configuration, the contact area to the locking portion 13 can be increased by the first reinforcing member 50. Even if the rafter 30 is pulled away from the rafter receiver 10 by the wind pressure (negative pressure) in the direction of lifting the solar panel 2 (the rafter 30 is pulled in the direction in which it is lifted), the first reinforcing member 50 The pressing force (supporting pressure from the head of the bolt Ba) that moves upward is distributed over a wide area and acts on the locking portion 13. As a result, the surface pressure applied to the locking portion 13 can be reduced, so that deformation (rolling up) of the locking portion 13 can be suppressed. Therefore, it can withstand a large negative pressure.

  In particular, in the present embodiment, the first reinforcing member 50 has a width dimension substantially equal to the distance between the upper end portions of the groove side walls 12a and 12b of the receiving groove 11, so that the first reinforcing member 50 has a width dimension. Can be maximized. Thereby, the contact area to the latching | locking part 13 of the 1st reinforcement member 50 can be enlarged, and the opposition performance with respect to a negative pressure can be improved. Furthermore, since the board | substrate part 51 of the 1st reinforcement member 50 is formed thicker than the latching | locking part 13, it can disperse | distribute and transmit the supporting pressure which acts intensively from the head of the volt | bolt Ba in a wide range. .

  In addition, the first reinforcing member 50 is configured to penetrate the shaft portions of a pair of bolts Ba, Ba adjacent to each other in the housing groove 11 along the longitudinal direction of the groove, and both end portions of the second reinforcing members 70, 70. Since it is formed longer than the distance between them, the contact area of the first reinforcing member 50 to the locking portion 13 can be further increased. Therefore, the surface pressure applied to the locking portion 13 can be further reduced. Further, since the contact area of the first reinforcing member 50 with the locking portion 13 is increased, the frictional force between the first reinforcing member 50 and the locking portion 13 can be increased, and the first reinforcing member 50 in the longitudinal direction of the groove can be increased. Slip can be suppressed. Furthermore, since two bolts Ba and Ba are fixed by one first reinforcing member 50, the first reinforcing member 50 is compared with the case where the first reinforcing member 50 is provided for each bolt Ba and Ba. Installation effort can be reduced.

  Further, in the first reinforcing member 50, the temporary fixing wall portion 52 and the bolt rotation preventing protrusions 56a and 56b serve as reinforcing ribs, so that the first reinforcing member 50 can be efficiently reduced in weight. In addition, the cross-sectional rigidity of the first reinforcing member 50 can be increased. Also in the second reinforcing member 70, since the wall plate portion 72 serves as a reinforcing rib, the cross-sectional rigidity of the second reinforcing member 70 can be efficiently increased while reducing the weight of the second reinforcing member 70. Can do.

  Further, since the locking portion 13 is sandwiched between the locking plate piece 32a, both widthwise end portions of the first reinforcing member 50 and the wall plate portion 72 of the second reinforcing member 70, the locking portion 13 is pressed from both the front and back surfaces. As a result, the deformation of the locking portion 13 can be further suppressed.

  Moreover, since the rafter 30 is pressed by the second reinforcing member 70 at both sides in the width direction and is firmly locked by tightening the bolt Ba and the nut Na, the fixing strength of the rafter receiver 10 and the rafter 30 can be increased. . In particular, since the second reinforcing member 70 is formed in an L-shaped cross section, the tightening force by the bolt Ba and the nut Na is easily transmitted to the locking plate piece 32a and the locking portion 13, so that the locking plate The force which presses the piece 32a can be enlarged.

  Furthermore, since the rising portion 33 of the locking plate piece 32a enters the concave groove 75 of the pressing portion 74, the fixing strength of the rafter receiver 10 and the rafter 30 can be further increased. Specifically, when the rising portion 33 is engaged with the concave groove 75, the rafter 30 can be reliably prevented from shifting in the width direction. Furthermore, since the contact area between the locking plate piece 32a and the second reinforcing member 70 can be increased, the frictional force generated between the rafter 30 and the second reinforcing member 70 can be increased. Therefore, it is possible to prevent the rafter 30 from shifting in the longitudinal direction.

(Other embodiments)
As shown in FIG. 8, the rafter 30 of another embodiment is arrange | positioned so that the longitudinal direction may turn into a horizontal direction. Accordingly, in the present embodiment, the shape of the upper end portion of the rafter receiver 20 and the shape of the first reinforcing member 60 are different from those of the first embodiment.

  An accommodation groove 21 in which the head of the bolt Ba is accommodated is formed at the upper end of the rafter receiver 20. The housing groove 21 has a rectangular cross section. A pair of locking portions 23, 23 extending inward from the groove side walls 22, 22 on both sides are formed at the upper opening end of the receiving groove 21. The locking portion 23 is orthogonal to the groove sidewall 22 and extends along the horizontal direction when viewed in the cross-sectional direction.

  In the first reinforcing member 60, the temporary fixing wall portion 62 is provided at one end portion in the width direction of the substrate portion 51, and hangs down along the groove side wall 22. The outer side surface of the temporary fixing wall 62 and the groove side wall 22 are configured to contact each other. That is, the temporary fixing wall portion 62 is formed to intersect the substrate portion 51 at a right angle.

  Since other configurations are the same as those in the first embodiment, the same reference numerals are given and description thereof is omitted.

  According to such a configuration, the solar panel gantry configured such that the longitudinal direction of the rafter receiver 20 is inclined with respect to the horizontal direction and the longitudinal direction of the rafter 30 is in the horizontal direction is the same as that of the first embodiment. The rafter receiver 20 and the rafter 30 can be fixed while obtaining the same effect. Moreover, if it arrange | positions so that the longitudinal direction of the rafter receptacle 20 may become a horizontal direction, the solar panel stand which can arrange | position a solar panel along a horizontal direction can also be provided.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, In the range which does not deviate from the meaning of this invention, a design change is possible suitably. For example, in this embodiment, the frame material fixing structure is used for fixing the rafter receiver 10 and the rafter 30. However, if a housing groove is formed in another frame material, it is also used for fixing other frame materials. Is possible. Furthermore, it is employable also as a fixing structure of frame materials other than a solar panel mount.

  Moreover, in the said embodiment, although the 1st reinforcement member 50 and the 2nd reinforcement member 70 are comprised with the extruded shape member made from an aluminum alloy, it is not limited to this. For example, you may form with other materials, such as stainless steel alloy, steel material, and resin material. Further, instead of the extruded shape, a plate material may be formed by bending.

1 Solar panel base 2 Solar panel 10 Rafter holder (first frame material)
11 receiving groove 12a groove side wall 12b groove side wall 13 locking part 15 screw hole 30 rafter (second frame material)
32a Locking plate piece (lower flange)
33 Standing portion 50 First reinforcing member 51 Substrate portion 52 Temporary fixing wall portion 55 Screw hole 56a Bolt rotation preventing protrusion 56b Bolt rotation preventing protrusion 70 Second reinforcing member 74 Pressing portion (side edge portion)
75 Concave groove Ba Bolt Na Nut Va Screw 20 Rafter holder (first frame material)
21 receiving groove 22 groove side wall 23 locking portion 60 first reinforcing member 62 temporary fixing wall portion

Claims (9)

A first frame member having a receiving groove in which the head of the bolt is received;
A first reinforcing member housed in the housing groove;
A second reinforcing member located outside the receiving groove;
A second frame member formed with a locking plate piece,
The receiving groove is formed with a pair of locking portions extending inward from the groove side walls on both sides,
The first reinforcing member has a temporary fixing wall portion that hangs down along the groove side wall,
A screw hole through which a screw for temporarily fixing the first reinforcing member to the groove side wall is inserted in the temporary fixing wall portion,
The first reinforcing member abuts on the locking portion,
The second reinforcing member abuts on the locking portion and the locking plate piece,
A shaft portion of the bolt is inserted through the first reinforcing member and the second reinforcing member,
The structure for fixing a frame material, wherein the bolt and the nut fasten and clamp the first reinforcing member, the second reinforcing member, the locking portion, and the locking plate piece. The first frame material is arranged such that its longitudinal direction is a horizontal direction,
The second frame material is arranged such that its longitudinal direction is inclined with respect to the horizontal direction and intersects the first frame material,
The locking portion is in surface contact with the lower surface of the second frame member in a state inclined with respect to a horizontal plane,
The frame material fixing structure according to claim 1, wherein the first reinforcing member is disposed to be inclined along the locking portion. The frame material fixing structure according to claim 2, wherein the temporary fixing wall portion is formed on an upper end of the first reinforcing member arranged to be inclined. The frame material fixing structure according to any one of claims 1 to 3, wherein a lower end portion of the temporary fixing wall portion is in contact with a bottom portion of the housing groove. The first reinforcing member has a pair of bolt rotation prevention protrusions protruding toward the bottom of the receiving groove,
The frame material fixing structure according to any one of claims 1 to 4, wherein the pair of bolt rotation prevention protrusions are opposed to each other with a head portion of the bolt interposed therebetween. The said 1st reinforcement member is comprised so that a pair of adjacent volt | bolt may be penetrated along a groove | channel longitudinal direction in the said accommodation groove | channel, respectively, The any one of Claim 1 thru | or 5 characterized by the above-mentioned. Fixed structure of frame material as described in 1. The locking plate piece extends from the lower end of the second frame material to both sides outward in the width direction, and is disposed between the shaft portions of the pair of bolts penetrating the first reinforcing member,
The frame member fixing structure according to claim 6, wherein a side edge portion of the second reinforcing member holds and locks a front end portion in the width direction of the locking plate piece. A rising portion that rises upward is formed at the front end in the width direction of the locking plate piece,
The frame material fixing structure according to claim 7, wherein a concave groove into which the rising portion enters is formed on a lower surface of the second reinforcing member. The frame material fixing structure according to any one of claims 1 to 8, wherein the frame material constitutes a solar panel mount for supporting the solar panel.

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