JP6595835B2 - Snow stop structure and building - Google Patents

Description

  The present invention relates to a snow stop structure and a building provided on the lower edge side of a solar cell module installed in a state of being inclined on a roof or the like.

  In order to prevent snow from falling from an inclined roof that is covered with folded plates or flat plates, it is known to provide a snow stop structure on the roof (see Patent Documents 1-4, etc.). On the other hand, in recent years, an example in which a solar cell module is arranged on a roof has increased.

  In many cases, solar cell modules are arranged up to the vicinity of the edge of the roof in order to increase the amount of power generation. Moreover, in order to raise electric power generation efficiency, a solar cell module is installed in the state inclined.

  Under such circumstances, a snow stop member as disclosed in Patent Documents 5 and 6 has been attached to the lower edge side of the solar cell module installed on the roof.

Japanese Utility Model Publication No. 47-35419 Japanese Utility Model Publication No. 63-129021 Japanese Utility Model Publication No. 06-71681 Japanese Utility Model Publication No. 62-196826 JP 2012-255254 A JP 2014-136935 A

  Here, if a snow stop structure capable of effectively resisting the load of snow is provided, a highly rigid and heavy member is used. However, the load of the structure to be installed on the roof is preferably as small as possible in view of the influence of an earthquake or the like, and a simple configuration that can reduce the weight is desired.

  On the other hand, there is a possibility that the snowfall member having the substantially L shape in side view as disclosed in Patent Documents 5 and 6 may fall down due to a snow load.

  Therefore, an object of the present invention is to provide a snow stop structure and a building capable of effectively exhibiting a snow stop function while having a simple structure.

  In order to achieve the above object, the snow stop structure of the present invention is a snow stop structure provided on the lower edge side of the solar cell module installed in an inclined state, and is provided on the lower edge of the solar cell module. An elongated snow stopper having a weir plate extending upward from the surface of the lower edge, and attached to the back side of the snow stopper, and of the solar cell module A base portion on which a lower edge is placed and a rotation prevention portion that is attached to the front surface side of the snow stop portion and supported by the installation surface of the solar cell module are provided.

  Here, the base portion and the rotation prevention portion are arranged at intervals in the longitudinal direction of the snow stop portion, and the base portion and the rotation prevention portion are arranged via the snow stop portion. It can be set as the structure connected.

  Moreover, it can also be set as the structure by which the anti-slip | skid material is interposed between the bottom face of the said base part and the said rotation prevention part, and the said installation surface.

  Furthermore, the said dam plate of the said snow stop part can be set as the structure spaced apart from the lower edge of the said solar cell module. Moreover, the said snow stop part can be set as the structure provided with the drain hole in the connection part extended in a horizontal direction while being formed in the side view substantially Z-shape.

  And the building of this invention is a building where the solar cell module is installed in a state inclined on the roof, and the snow stop structure according to any one of the above is provided on the lower edge side of the solar cell module. It is characterized by being.

  In the snow stopper structure of the present invention configured as described above, the snow stopper portion including the barrier plate protruding upward from the surface of the lower edge of the solar cell module includes a base portion on which the lower edge of the solar cell module is placed, It is connected with the rotation prevention part supported by the installation surface of a solar cell module.

  For this reason, when a snow load acts on the weir plate, the force applied to the base portion due to the weight of the snow itself and the resistance force received by the rotation prevention portion from the installation surface prevent the snow stop portion from overturning. . Thus, the snow stop function can be effectively exhibited while having a simple structure.

  In addition, even if the base part and the rotation prevention part are arranged at a distance in the longitudinal direction with respect to the long snow guard part, the rotation of the snow guard part can be suppressed and the fall is reliably prevented. it can.

  Furthermore, if an anti-slip material is interposed between the bottom surface and the installation surface of the base unit and the rotation prevention unit, the base unit and the rotation prevention unit can receive resistance force from the installation surface without loss. The rotation of the snow stopper can be suppressed at the initial stage.

  Moreover, the solar cell module can be prevented from being submerged by snowmelt water by disposing the dam plate of the snow stop portion away from the lower edge of the solar cell module. In particular, when the snow stopper is formed in a substantially Z shape when viewed from the side, if the drainage hole is provided in the connecting portion that extends in the lateral direction, the snow melt water can be drained quickly.

  And if the solar cell module provided with such a snow stop structure is a building in which it is installed on a roof, the fall of the snow from a roof can be prevented.

It is sectional drawing for demonstrating the structure and effect | action of the snow stop structure of embodiment of this invention. It is sectional drawing which showed the state of the roof in which the several solar cell module was installed. It is a figure explaining the structure of the snow stop part of the state to which the rotation prevention part was attached, Comprising: (a) is a top view, (b) is a front view. It is sectional drawing seen in the AA arrow direction of FIG.3 (b). It is a figure explaining the structure of a base part, Comprising: (a) is a side view, (b) is a front view. It is explanatory drawing which showed the process of attaching a base part to a solar cell module. It is explanatory drawing which showed the process of attaching a snow stopper to a solar cell module.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the snow stop structure 3 of the present embodiment is provided at the lower edge 11 of the solar cell module 1 installed in an inclined state.

  In the present embodiment, a case will be described in which a plurality of solar cell modules 1, 1A,... Are installed in a building 20 provided with a roof 2 that is a flat roof as shown in FIG.

  This roof 2 is provided as a folded-plate roof, for example. The folded plate roof is a flat roof in which the top portions 22 of the ridges are provided substantially in parallel at a predetermined pitch. The folded plate roof is formed, for example, by covering the upper surface of the base plate 21 with a roofing material such as a corrugated polyvinyl chloride coated steel plate.

  And the upper surface formed substantially horizontal of the roofing material becomes the roof surface 2a of this Embodiment. Moreover, this roof surface 2a becomes an installation surface of the solar cell modules 1 and 1A.

  Solar cell modules 1 and 1A are installed in an inclined state in order to receive sunlight efficiently. Specifically, as shown in FIG. 2, the solar cell module 1 installed at a position adjacent to the edge 23 of the roof 2 is fixed to the top 22 of the roof 2 by the support bracket 12 on the lower edge 11 side. The edge side is fixed to another top portion 22 by the rear foot bracket 13 and the holding tool 16.

  In addition, the upper edge of the rear solar cell module 1 </ b> A is fixed to another top portion 22 by the support fitting 15. On the other hand, the lower edge of the rear solar cell module 1 </ b> A is connected to a holding tool 16 common to the solar cell module 1.

  When the support metal fitting 12 is taken as an example in more detail, as shown in FIG. 1, the upper part of the support metal fitting 12 is fixed to the back surface 1 b of the solar cell module 1 by a bolt 14 and a nut 141.

  On the other hand, a holding tool 121 for holding the top portion 22 of the roof 2 is provided at the lower portion of the support fitting 12, and the holding device 121 is fixed to the top portion 22 by tightening the bolt 122.

  As shown in FIG. 2, the snow stop structure 3 of the present embodiment is provided on the lower edge 11 side of the solar cell module 1 disposed adjacent to the edge 23 of the roof 2. Here, the lower edge 11 side means a lower edge portion of the solar cell module 1 in the inclination direction.

  The snow stop structure 3 includes a long snow stop portion 4, a base portion 6 attached to the back side of the snow stop portion 4, and a rotation prevention portion 5 attached to the front side of the snow stop portion 4. It is mainly composed by.

  The lower edge 11 of the solar cell module 1 is placed on the base portion 6. The base portion 6 is formed in a box shape as shown in FIG. FIG. 5 is a diagram illustrating a detailed configuration of the base unit 6.

  As shown in the side view of FIG. 5A, the base portion 6 includes an upper surface portion 61 that is inclined according to the inclination angle of the solar cell module 1 and a front portion that is a vertical surface that is brought into contact with the snow stopper 4. 62, a bottom surface portion 64 that extends horizontally from the lower end of the front surface portion 62, and a side surface portion 63 that blocks between the upper surface portion 61 and the side edges of the bottom surface portion 64.

  The base portion 6 is made of a steel plate such as a stainless steel plate. Then, an anti-slip material 65 is affixed to the lower surface side of the bottom surface portion 64 that becomes the bottom surface of the base portion 6. As the anti-slip material 65, synthetic rubber such as ethylene, propylene, and diene rubber (EPDM) can be used.

  As shown in the front view of FIG. 5B, a plurality of bolt holes 611,... For passing bolts 14 used for joining to the solar cell module 1 are drilled in the upper surface portion 61. .

  Further, the front portion 62 is provided with screw holes 621 and 621 through which a drill screw 431 used for joining the snow stopper portion 4 and the base portion 6 is passed. The screw hole 621 has a thread groove so that the drill screw 431 can be screwed in.

  Further, a rectangular opening 622 is provided below the screw holes 621 and 621 of the front portion 62. The opening 622 accommodates the head of the bolt 44 used for joining the rotation prevention unit 5 and the snow stopper 4.

  Further, the bottom surface portion 64 has both ends projecting laterally from the side surface portions 63, 63, and is formed in a rectangular shape having a longer side than the width of the top surface portion 61. Furthermore, a notch for draining is provided in a corner portion adjacent to the bottom surface portion 64.

  And the snow stop part 4 by which the back side is fixed to this base part 6 is formed in the side view substantially Z shape, as shown in FIG. The snow stopper 4 is a long member extending along the lower edge 11 of the solar cell module 1.

  The snow stopper 4 includes a weir plate 41 projecting upward from the surface 1a of the lower edge 11 of the solar cell module 1, a connecting portion 42 extending substantially perpendicularly from the lower end of the weir plate 41 to the solar cell module 1 side, It is mainly comprised by the attaching part 43 suspended from the edge part of the connection part 42. FIG.

  3A is a plan view of the snow stopper 4, FIG. 3B is a front view of the snow stopper 4, and FIG. 4 is a cross-section as viewed in the direction of arrows AA in FIG. The figure is shown. As shown in FIG. 4, the barrier plate 41 is formed in a wall shape obliquely upward.

  The snow stopper 4 is manufactured by bending a steel plate such as a stainless steel plate. Moreover, the communication part 42 spreads in the horizontal direction which becomes substantially horizontal, and as shown to Fig.3 (a), several water drain holes 421, ... are perforated at intervals in the longitudinal direction of the snow stopper part 4. As shown in FIG. Is done.

  The drain holes 421 are formed in an oval shape (elliptical shape), and function so that the melted snow melted by the snow stopped by the barrier plate 41 is discharged to the rotation prevention unit 5 side. Moreover, as shown in FIG.3 (b), the screw hole 432, ... for letting the drill screw 431 used for joining to the base part 6 pass in the attaching part 43 is provided.

  The screw hole 432 is drilled upward from the mounting position of the rotation preventing unit 5. By providing the screw hole 432 at this position, the rotation prevention unit 5 can be attached to the snow stopper 4 in advance.

  Specifically, as shown in FIG. 4, the rotation preventing portion 5 is joined to the attachment portion 43 of the snow stopper 4 by a bolt 44 and a nut 441. As shown in FIG. 3 (b), one rotation prevention part 5 is fixed to the snow stopper 4 by bolts 44, 44 inserted at two locations.

  The rotation prevention unit 5 is formed into a substantially L shape in a side view by a vertical part 51 and a horizontal part 52 substantially orthogonal thereto. An anti-slip material 53 is affixed to the lower surface side of the horizontal portion 52 serving as the bottom surface.

  The rotation preventing unit 5 is made of a steel plate such as a stainless plate. The anti-slip material 53 can be made of synthetic rubber such as ethylene, propylene, and diene rubber (EPDM).

  Next, the construction method of the snow stop structure 3 of the present embodiment will be described.

  First, at the factory or installation site, as shown in FIG.

  The outer edge of the solar cell module 1 is formed by frame materials such as the lower frame 11a and the upper frame 13a. Therefore, the upper surface portion 61 of the base portion 6 is brought into contact with the lower frame 11 a disposed on the lower edge 11, and fastening with the bolt 14 and the nut 141 is performed.

  Moreover, in the location where the support metal fitting 12 is arrange | positioned, the edge part of the support metal fitting 12 is inserted between the upper surface part 61 of the base part 6, and the lower frame 11a, and fastening with the volt | bolt 14 and the nut 141 is performed.

  On the other hand, between the upper frame 13a and the base portion 6A, the end portion of the rear foot fitting 13 is inserted at a predetermined location, and fastening with the bolt 67 and the nut 671 is performed. Further, a connecting beam 66 having a substantially L shape in a side view is passed between the base portions 6A, 6A, 6A on the upper frame 13a side, and fastening is performed using bolts 661 and nuts 662.

  Thus, in the solar cell module 1 to which the base parts 6 and 6A are attached, the anti-slip materials 65 and 65A are exposed on the upper surface. At the installation site, the solar cell module 1 is lifted and installed using a crane.

  When the solar cell module 1 is lowered onto the roof 2, the anti-slip materials 65, 65A of the base parts 6, 6A come into contact with the roof surface 2a, and the solar cell module 1 is supported by the base parts 6, 6A,. Will be.

  The solar cell module 1 is fixed by clamping the top portion 22 of the roof 2 with a clamping tool 121 such as the support fitting 12 and tightening a bolt 122 or a nut, as shown in FIGS.

  Through the above operation, as shown in FIG. 2, the solar cell modules 1 and 1A can be installed on the roof surface 2a in an inclined state. Subsequently, as shown in FIG. 7, the snow stopper 4 is attached to the lower edge 11 of the solar cell module 1 installed adjacent to the edge 23 of the roof 2.

  Three anti-rotation parts 5, 5, 5 are joined to the snow stopper 4 with bolts 44 and nuts 441 at intervals in the longitudinal direction. The snow stopper 4 is brought close to the lower edge 11 with the mounting portion 43 facing the solar cell module 1 side.

  Then, as shown in FIG. 7, the drill screw 431 is inserted into the screw hole 432 (see FIG. 3B) of the attachment portion 43, and the tip thereof is screwed into the screw hole 621 of the base portion 6.

  FIG. 1 shows a state in which the attachment portion 43 of the snow stopper 4 and the front portion 62 of the base portion 6 are joined by the drill screw 431. As shown in this figure, an anti-slip material 53 is interposed between the roof surface 2 a and the horizontal portion 52 of the rotation preventing portion 5, and a slip is caused between the roof surface 2 a and the bottom surface portion 64 of the base portion 6. Stop material 65 is interposed.

  Through the above steps, the snow stopper structure 3 in which the attachment portion 43 of the snow stopper portion 4 is sandwiched between the anti-rotation portion 5 and the base portion 6 placed on the anti-slip materials 53 and 65. Is built.

  Next, the effect | action of the snow stop structure 3 of this Embodiment is demonstrated.

  In the snow stop structure 3 of the present embodiment configured as described above, the snow stop portion 4 having the weir plate 41 protruding above the surface 1a of the lower edge 11 of the solar cell module 1 is It is connected with the base part 6 which mounts the lower edge 11, and the rotation prevention part 5 supported by the roof surface 2a.

  The snow that has fallen on the surface 1a of the solar cell module 1 is blocked by the barrier plate 41 by sliding down along the slope. The snow sliding load H at this time acts substantially perpendicular to the barrier plate 41 as shown in FIG. And it acts as a rotational moment M on the snow stopper 4.

  On the other hand, the weight of the snow itself dammed by the dam plate 41 acts as the snow weight W on the base portion 6. This snow weight W is a force that opposes the force by which the base portion 6 is lifted by the rotational moment M.

  Furthermore, when a force that pushes down the rotation preventing portion 5 is applied by the rotation moment M, the horizontal portion 52 receives an upward resistance force F from the roof surface 2a.

  As a result, even if the weight and rigidity of the snow stopper 4 itself are not so large, the snow stopper 4 can be prevented from falling. Thus, the snow stop function can be effectively exhibited while having a simple structure in which the snow stop portion 4, the rotation prevention portion 5, and the base portion 6 are combined.

  And even if the base part 6 and the rotation prevention part 5 are arrange | positioned at intervals in the longitudinal direction with respect to the elongate snow stopper part 4, the rotation of the snow stopper part 4 is suppressed and a fall is ensured. Can be prevented.

  Furthermore, if the anti-slip materials 64 and 53 are interposed between the bottom surface portion 64 of the base portion 6 and the horizontal portion 52 of the rotation prevention portion 5 and the roof surface 2a, the base portion 6 and the rotation prevention portion 5 are Since the resistance force can be received from the roof surface 2a without loss, the rotation of the snow stopper 4 can be suppressed in the initial stage.

  Moreover, the lower edge 11 of the solar cell module 1 can be prevented from being submerged by the snowmelt water by disposing the barrier plate 41 of the snow stopper 4 away from the lower edge 11 of the solar cell module 1.

  Further, a plurality of drain holes 421,... Are provided in the connecting portion 42 that extends in the substantially horizontal direction of the snow stopper 4 formed in a substantially Z shape in side view, as shown in FIG. If it is, the snowmelt water can be drained quickly.

  And if the solar cell module 1 provided with such a snow stop structure 3 is the building 20 installed on the roof surface 2a, the fall of the snow from the roof 2 can be prevented.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the above-described embodiment, the case where the roof surface 2a of the flat roof is used as the installation surface has been described. However, the present invention is not limited to this, and an inclined roof surface can also be used as the installation surface. The present invention can also be applied to the case where the solar cell module 1 is installed at a high place in a structure other than the roof.

  Moreover, although the said embodiment demonstrated the case where the solar cell module 1 was fixed to the top part 22 of a folded-plate roof with the support metal fitting 12 etc., it is not limited to this, A corrugated slate plate, a corrugated zinc iron plate, The snow stop structure 3 of the present invention can also be applied when the solar cell module 1 is installed on a roof such as corrugated glass or corrugated plastic plate.

DESCRIPTION OF SYMBOLS 1 Solar cell module 1a Surface 11 Lower edge 20 Building 2 Roof 2a Roof surface (installation surface)
3 Snow stop structure 4 Snow stop part 41 Dam plate 42 Connection part 421 Drain hole 5 Anti-rotation part 52 Horizontal part (bottom surface)
53 Non-slip material 6 Base 64 Bottom (bottom)
65 Anti-slip material

Claims (6)

A snow stop structure provided on the lower edge side of the solar cell module installed in an inclined state,
An elongated snow stopper having a barrier plate extending along the lower edge of the solar cell module and protruding upward from the surface of the lower edge;
Attached to the back side of the snow stopper, and a base on which the lower edge of the solar cell module is placed,
Attached to the front side of the snow stopper, and equipped with an anti-rotation part supported on the installation surface of the solar cell module ,
The snow stop structure , wherein the base part is formed in a box shape and has a bottom part .   The base part and the rotation prevention part are arranged at an interval in the longitudinal direction of the snow stopper part, and the base part and the rotation prevention part are connected via the snow stopper part. The snow stop structure according to claim 1, wherein: Between the bottom portion and the bottom surface and the installation surface of the rotation preventing portion of the base portion, the snow retaining structure according to claim 1 or 2, characterized in that anti-slip material is interposed.   The snow stop structure according to any one of claims 1 to 3, wherein the barrier plate of the snow stop portion is disposed separately from a lower edge of the solar cell module.   5. The snow according to claim 1, wherein the snow stopper is formed in a substantially Z shape in a side view and has a drain hole in a connecting portion that extends in a lateral direction. Stop structure. It is a building where solar cell modules are installed in a tilted state on the roof,
The lower edge of the solar cell module, along with the snow stop structure is provided according to any one of claims 1 to 5, lower part upper is fixed to the rear surface of the solar cell module to the roof A building characterized by a fixed support bracket .