JP3379944B2 - Installation method and installation structure of solar cell module mount - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a structure for installing a solar cell module mount for mounting a solar cell module (also referred to as a solar cell panel) on an existing roof.

[0002]

2. Description of the Related Art Generally, when mounting a solar cell module on an existing roof, for example, as shown in FIGS. 3 and 4, first, a pedestal 1 which is a long channel-shaped object is mounted on the roof. A plurality of them are installed in parallel with each other in a state of extending in the direction (longitudinal direction) or the direction (horizontal direction) orthogonal thereto. After that, the solar cell module 2 is laid between the two adjacent bases 1 and 1, and both side edges of the solar cell module 2 are fixed to the base 1 by the inter-module cover 3 or the module side cover 4, respectively. Thus, the solar cell module 2 is attached.
In FIG. 3, 5 is a decorative cover that covers the side surface of the solar cell module 2 on the side of the base 1 end, and both ends of the decorative cover 5 are attached to the end faces of the base 1 via mounting brackets 6. Reference numeral 7 is a makeup cap attached to the end of the makeup cover 5.

When installing the gantry 1 on an existing roof, different methods are adopted depending on the type of roofing material. For example, when the roof material is a clay roof tile, Japanese Patent Laid-Open No. 11-3
As disclosed in Japanese Unexamined Patent Publication No. 24259, one existing clay tile is removed, and a metal support tile having the same shape as the clay tile and having a mounting portion is attached instead of the existing clay tile. Then, the supporting roof tiles are provided at at least four places on the roof, and after the vertical bars, which are long objects, are fixed between the mounting portions of the supporting roof tiles at the two vertical positions of the roof, by using a lower fixing bracket or the like,
A pedestal as a horizontal rail is bridged between these two vertical rails and fixed by an upper fixing bracket or the like.

When the roofing material is a slate, first, the pilot holes are drilled at predetermined intervals in the longitudinal direction of the roof, and the cushion material having the central hole is attached to each of the pilot holes. It Next, after injecting caulking material into the center hole of each cushion material, the pedestal is placed on the roof material with these cushion materials interposed, and wood screws are inserted from the screw holes provided in this pedestal into the center hole of the cushion material and It is fixed by screwing it into the base plate through the prepared hole of the slate.

[0005]

However, when the roofing material is cement-based such as thick slate or concrete roof tile, the pedestal cannot be fixed in the same manner as the slate, and the solar cell module is installed. Was previously considered impossible. This is because cement-based roofing materials are harder and more fragile than slate, so when you drill a pre-drilled hole in the cement-based roofing material with a normal drill, cracks and chips occur, and heavy loads such as solar cell modules are applied. This is because if the cement-based roofing material is applied through the frame, it may be damaged, which may lead to rain leakage.

[0006] The present invention has been made in view of the above points, and its object is to install a pedestal on a cement-based roofing material and expand the roof to which the solar cell module is applied. It is intended to provide an installation method and installation structure of a mount for a solar cell module.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 is an installation method for installing a pedestal for mounting a solar cell module on an existing roof as a method for installing a predetermined portion of a roof material. A step of providing a through hole with a core drill, a step of inserting a hollow tube into the through hole with a certain amount of play, and abutting the lower end of the hollow tube to a field plate, and a caulking material in the hollow tube. After injecting, mount the pedestal on the upper end of the hollow pipe, fix the pedestal by screwing wood screws through the hollow holes provided on the pedestal into the field plate through the hollow pipe, and between the through hole and the hollow pipe. And a step of fixing the hollow tube to the roof material by filling the gap with an adhesive.

With this structure, when a through hole is formed in the roofing material, a core drill having a smaller cutting surface than that of an ordinary drill is used, whereby cracks and chips can be suppressed as much as possible. In addition, after the pedestal is installed, the pedestal is not placed on the roof material and is supported by the base plate through the hollow tube, so that a heavy load such as a solar cell module is not applied to the roof material. There is no damage to the roofing material.

According to a second aspect of the present invention, in the method of installing the mount for a solar cell module according to the first aspect, particularly from the viewpoint of construction, a step of fixing the mount by screwing a wood screw into the base plate, and a penetration This is to limit the temporal relationship with the step of filling the gap between the hole and the hollow tube with an adhesive to fix the hollow tube to the roof material. That is, after the pedestal is fixed by screwing wood screws into the base plate, the adhesive is filled in the gap between the through hole and the hollow tube. In this configuration, the pedestal is fixed by screwing wood screws into the base plate, and with the lower end of the hollow pipe in close contact with the base plate, the adhesive in the gap between the hollow pipe and the through hole of the roofing material Since the filling is performed, the fixing strength of the gantry can be increased.

The invention according to claim 3 provides the method for installing the mount for a solar cell module according to claim 1 or 2, especially when the roofing material is cement-based such as thick slate or concrete roof tile. The applicable roof of the solar cell module can be extended.

According to a fourth aspect of the present invention, the method for installing the solar cell module mount according to the first aspect is understood as an object, that is, an installation structure. That is, as an installation structure in which a pedestal for mounting a solar cell module is installed on an existing roof, a through hole is provided by a core drill at a predetermined portion of the roof material, and the through hole has an outer diameter larger than the inner diameter of the through hole. Also, a hollow tube with a small size is inserted with its lower end in contact with the base plate, and this hollow tube is fixed to the roofing material by the adhesive filling the gap between the through hole and the hollow tube. A frame is placed on the upper end of the hollow tube, and wood screws are screwed into the field board through the hollow holes filled with caulking material from the screw holes provided in this frame, and the frame is attached to the hollow tube. It is configured to be supported by the ground plate through.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show the installation structure of a mount for a solar cell module according to an embodiment of the present invention,
Reference numeral 10 is a roofing board of an existing roof, 11 is a roofing material that is roofed on the roofing board 10, and in this embodiment, the roofing material 11 is a cement-based material such as thick slate or concrete roof tile. is there. The solar cell module mount 1 is arranged on the roof material 11 in a state of being floated with a predetermined gap therebetween, and is arranged along the inclination direction (vertical direction) of the roof. The configurations of the gantry 1, the solar cell module 2 and the like are the same as the conventional ones shown in FIGS. 3 and 4.

Through holes 12 are formed by core drills in the roof material 11 at positions corresponding to screw holes (not shown) provided on the bottom surface 1a of the gantry 1. This through hole 1
2 has a predetermined outer diameter (2-4
A small metal hollow tube 13 is inserted with its lower end in contact with the base plate 10, and the hollow tube 13 is
The roof material 11 is fixed to the roof material 11 by an adhesive agent 14 filled in a gap between the through hole 12 and the hollow tube 13. The hollow tube 1
The bottom surface 1a of the pedestal 1 is placed on the upper end of the pedestal 3, and wood screws 15 are screwed into the field board 10 through the screw holes in the bottom surface 1a of the pedestal 1 through the hollow pipe 13 filled with the caulking material 16. The pedestal 1 is supported by the base plate 10 via a hollow tube 13.

Next, a work procedure, that is, a method of installing the pedestal 1 and the solar cell module 2 on the cement-based roof material 11, will be described mainly with reference to FIGS. 1 and 2.

First, a predetermined portion of the roofing material 11, that is, the pedestal 1
Through holes 12 are provided by core drills at the positions corresponding to the screw holes. The core drill has a cutting blade made of diamond at the tip of a circular tubular core bit, and performs cutting in a state in which the core bit is erected substantially vertically to the roof material 11 as the surface to be cut using a drill stand or the like. When the through hole 12 is cut by this core drill, the cutting surface becomes smaller than that of a normal drill.
The roof material 11 is not cracked or chipped, and a beautiful through hole 12 can be cut.

Subsequently, a hollow tube 13 is inserted into each of the through holes 12 with a predetermined amount of play (gap of about 1 to 2 mm), and the lower end of the hollow tube 13 is substantially perpendicular to the base plate 10. Abut. In this state, caulking material 16 such as silicon is injected into the hollow tube 13. After that, the bottom surface 1a of the gantry 1 is placed on the upper end of the hollow tube 13, and wood screws 15 are screwed into the field plate 10 through the hollow tubes 13 from the screw holes provided in the bottom surface 1a of the gantry 1 to fix the gantry 1. . At this time, the caulking material 16 in the hollow pipe 13 is the base plate 10 of the wood screw 15.
As the wood screw 15 penetrates into the gap between the base plate 10 and the wood plate 15 as it is screwed in, rain leakage does not occur at this point.

After that, an adhesive 14 is filled in the gap between the through hole 12 and the hollow tube 13 to attach the hollow tube 13 to the roof material 1.
Stick to 1. By doing this for all the through holes 12 of the roof material 11 provided corresponding to the screw holes of the gantry 1, the installation work of one gantry 1 is completed. And
As shown in FIG. 3, the solar cell module 2 is laid between the two racks 1 and 1 adjacent to each other thus installed, and both side edges of the solar cell module 2 are mounted on the inter-module cover 3 or the module, respectively. The solar cell module 2 is fixed to the pedestal 1 by the side cover 4, and the decorative cover 5 and the decorative cap 7 are attached.
The installation work of is completed.

According to the method of installing the gantry 1 as described above, even when the roof material 11 is made of cement, such as thick slate or concrete tile, which is more fragile than the slate, the through hole 12 is formed in the roof material 11. The roof material 11 is not cracked or chipped when it is installed, and after the base 1 is installed, the base 1 is not placed and supported on the roof material 11 but through the hollow tube 13. Since the roof material 11 is supported by the base plate 10, a heavy load such as the solar cell module 2 is not applied to the roof material 11, and the roof material 11 is not damaged. Therefore, the solar cell module 2 can be installed even on the cement-based roofing material 11 without causing rain leakage, and the applicable roof of the solar cell module 2 can be expanded.

Furthermore, after fixing the gantry 1 by screwing the wood screws 15 into the base plate 10, the adhesive 14 is applied to the through holes 1
Since the space between the hollow pipe 13 and the hollow pipe 13 is filled with the hollow pipe 13, the hollow pipe 13 can be fixed to the roof material 11 with the lower end of the hollow pipe 13 firmly attached to the base plate 10. The fixing strength of the gantry 1 and thus the supporting strength of the solar cell module 2 can be increased.

The present invention is not limited to the above embodiment, but includes various other forms.
For example, in the installation method of the above-mentioned embodiment, after fixing the gantry 1 by screwing the wood screws 15 into the base plate 10, the adhesive 14 is filled in the gap between the through hole 12 and the hollow tube 13 to make it hollow. The pipe 13 is fixed to the roof material 11. However, in the present invention (specifically, the invention according to claim 1), the hollow pipe 13 is filled with the adhesive 14 in the gap between the through hole 12 and the hollow pipe 13. After fixing to the roof material 11, the pedestal 1 may be fixed by screwing the wood screws 15 into the base plate 10. However, in this case, the hollow tube 13 is filled with the adhesive 14 so that the roof material 1
Holding the lower end of the hollow pipe 13 in close contact with the base plate 10 when it is fixed to 1 prevents displacement of the hollow pipe 13 when the wood screw 15 is subsequently screwed into the base plate 10. It is necessary to increase the fixing strength of the frame 1.

In the above embodiment, the case where the roof material 11 is a cement type such as a thick slate or a concrete roof tile has been described, but the present invention is not limited to the cement type roof material such as a clay roof tile. It can also be applied in cases. In this case, it is not necessary to replace the existing clay roof tile with the metal support roof tile having the mounting portion as in the conventional installation method of the gantry, which can contribute to simplification of the installation work.

[0022]

As described above, according to the installation method and installation structure of the solar cell module mount of the present invention, even when the roof material is cement-based, cracks are generated when the through hole is provided in the roof material. It is possible to suppress the occurrence of cracks and chips as much as possible, and to prevent the roof material from being damaged because a heavy load such as a solar cell module is not applied to the roof material. The roof can be expanded, and the effect is excellent in practicality.

In particular, in the invention according to claim 2, the pedestal is fixed by screwing a wood screw into the base plate, and the hollow pipe and the through hole of the roof material are formed with the lower end of the hollow pipe being in close contact with the base plate. Since the gap is filled with the adhesive, the fixing strength of the pedestal can be increased, and the construction can be favorably performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an installation structure of a mount for a solar cell module according to an embodiment of the present invention.

FIG. 2 is a partially cutaway enlarged view of a portion A of FIG.

FIG. 3 is an exploded perspective view showing a mounting structure of a solar cell module.

FIG. 4 is a perspective view of a pedestal.

[Explanation of symbols]

1 stand 2 Solar cell module 10 Field plate 11 roofing materials 12 through holes 13 Hollow tube 14 Adhesive 15 wood screws 16 caulking material

Claims (4)

(57) [Claims] 1. A method of installing a pedestal for mounting a solar cell module on an existing roof, comprising the steps of providing a through hole with a core drill at a predetermined portion of the roof material, and forming a hollow tube in the through hole. Inserting with a certain play, contacting the lower end of the hollow pipe with the base plate, and after pouring caulking material into the hollow pipe, place the mount on the upper end of the hollow pipe and install it on the mount. Fixing the frame by screwing wood screws through the hollow holes through the hollow pipe into the base plate, and filling the gap between the through hole and the hollow pipe with an adhesive to fix the hollow pipe to the roofing material. A method for installing a mount for a solar cell module, which comprises: 2. The installation of a mount for a solar cell module according to claim 1, wherein after fixing the mount by screwing the wood screw into the base plate, an adhesive is filled in a gap between the through hole and the hollow tube. Method. 3. The method for installing a solar cell module mount according to claim 1, wherein the roofing material is a cement-based material such as thick slate or concrete roof tile. 4. An installation structure in which a pedestal for mounting a solar cell module is installed on an existing roof, and a through hole is provided in a predetermined portion of the roof material by a core drill, and the through hole has an outer diameter. A hollow tube smaller than the inner diameter of the through hole is inserted with its lower end in contact with the base plate, and this hollow tube is formed by the adhesive filled in the gap between the through hole and the hollow tube. It is fixed to the roof material, and a pedestal is placed on the upper end of the hollow pipe, and wood screws are screwed from the screw holes provided in this pedestal through the hollow pipe filled with caulking material to the base plate, The structure for installing a mount for a solar cell module, characterized in that is supported by the base plate through a hollow tube.