JP2020094409A - Light-shielding system, light-shielding metal fitting, and method for constructing light-shielding system - Google Patents

Abstract

To provide a light-shielding system, a light-shielding metal fitting and a method for constructing a light-shielding system which can suppress rain leakage after a solar cell module is removed.SOLUTION: A light-shielding system 200 includes a metal fitting 1 for mounting a roof which is mounted on an inclined roof 300 tilting downward to eaves from a ridge and can fix a solar cell module, a screw 7 which fixes the metal fitting 1 for mounting the roof to the inclined roof 300, and a light-shielding metal fitting 10. The light-shielding metal fitting 10 has a mounting part 10a mounted on the metal fitting 1 for mounting the roof, and an eaves part 10b covering the screw 7.SELECTED DRAWING: Figure 6

Description

The present invention relates to a light-shielding system including an eaves portion, a light-shielding metal fitting, and a method of constructing a light-shielding system.

When installing a solar cell module on the roof of a building, it is general that the solar cell module is mounted on a roof mounting bracket fixed on the roof. Further, the roof mounting bracket is generally fixed to the roof with screws. For example, Patent Document 1 discloses a method of fixing a roof mounting bracket to a roof by penetrating a waterproof layer of the roof with a screw and driving up to a roof base material. In the fixing method of Patent Document 1, since the screw penetrates the waterproof layer, it is necessary to take measures against water leakage of the waterproof layer.

To prevent water leakage of the waterproof layer, it is common practice to attach a washer with waterproof packing to the head of the screw or provide caulking material on the head of the screw. When the solar cell module is mounted on the roof mounting bracket, the solar cell module is located directly above the roof mounting bracket, so that the washer with waterproof packing and the caulking material are not directly exposed to direct sunlight and rainwater.

By the way, there are cases where the solar cell module is removed from the roof due to deterioration, failure, or the like of the solar cell module. In this case, if the screws are removed and the roof mounting bracket is also removed together, rainwater may leak into the building through the holes opened in the waterproof layer due to the penetration of the screws, resulting in rain leakage. As a method of suppressing the leakage of rain, it is possible to leave a roof mounting bracket on the roof and leave the holes opened in the waterproof layer closed with screws.

JP, 2013-177736, A

However, if the roof mounting bracket is left on the roof after the removal of the solar cell module, the solar cell module is not directly above the roof mounting bracket, and thus the washer with the waterproof packing and the caulking material are likely to be exposed to direct sunlight. As a result, the washer with waterproof packing and the caulking material are deteriorated and cracked or peeled off, which may reduce the waterproof function.

Further, after the solar cell module is removed, rainwater directly hits the roof mounting bracket, so that if the waterproof function of the washer with waterproof packing and the caulking material is deteriorated, there is a problem that rain leakage occurs.

The present invention has been made in view of the above, and an object of the present invention is to obtain a light-shielding system that can suppress rain leakage after removal of a solar cell module.

In order to solve the above-mentioned problems and to achieve the object, a light-shielding system according to the present invention is mounted on a sloping roof that slopes down from a ridge toward an eaves, and a roof mounting bracket that can fix a solar cell module. And a fixing member for fixing the roof mounting member to the sloping roof, and a light shielding member. The light-shielding metal fitting has a mounting portion mounted on the roof mounting metal fitting, and an eaves portion covering the fixing member.

According to the present invention, there is an effect that it is possible to suppress rain leakage after removing a solar cell module.

The perspective view which shows the solar power generation system which concerns on Embodiment 1 of this invention. The perspective view which shows the roof mounting bracket and fastener which concern on Embodiment 1. The side view which shows the solar power generation system which concerns on Embodiment 1. It is a figure which shows the light-shielding system which concerns on Embodiment 1, Comprising: The perspective view which shows the state which attached the light-shielding metal fitting to the roof mounting metal fitting and the fastener. 1 is a perspective view showing a light shielding metal member according to a first embodiment. VI-VI sectional view taken on the line of FIG. Process drawing which shows the construction method of the shading system which concerns on Embodiment 1. The perspective view which shows the solar power generation system which concerns on Embodiment 2 of this invention. A perspective view showing a roof mounting bracket according to a second embodiment. The side view which shows the solar power generation system which concerns on Embodiment 2. A perspective view showing a vertical rail and a fastener according to a second embodiment. It is a figure which shows the light-shielding system which concerns on Embodiment 2, Comprising: The perspective view which shows the state which attached the light-shielding metal fitting to the roof mounting metal fittings. FIG. 3 is a perspective view showing a light shielding metal member according to a second embodiment. XIV-XIV sectional view taken on the line of FIG. It is a figure which shows the light-shielding system which concerns on Embodiment 3 of this invention, Comprising: The perspective view which shows the state which attached the light-shielding metal fitting to the roof mounting metal fitting and the fastener. FIG. 3 is a perspective view showing a light shielding metal member according to a third embodiment. XVII-XVII line sectional view of FIG.

Hereinafter, a light shielding system, a light shielding metal fitting, and a method of constructing a light shielding system according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
In the present embodiment, after the solar cell module is removed, light leakage fittings are attached to the roof attachment fittings to suppress rain leakage. First, the solar power generation system before removing the solar cell module will be described.

FIG. 1 is a perspective view showing a photovoltaic power generation system according to Embodiment 1 of the present invention. In FIG. 1, the upper right side of the paper is the ridge side and the lower left side of the paper is the eaves side. The solar power generation system 100 is a system for performing solar power generation with the solar cell module 3 installed on a sloping roof 300 that slopes down from the ridge toward the eaves. The solar power generation system 100 includes a roof mounting bracket 1, a fastener 2, a solar cell module 3, a module fixing bracket 4, an eaves cover 5, and a ridge cover 6. Although illustration is omitted, the sloping roof 300 is formed by stacking a roof material, a waterproof layer, a roof base material, and the like in order from the upper side. In the drawings, the pitched roof 300 is shown as a single member for convenience of description. Although the case where the roof material of the sloping roof 300 is a slate roof material is illustrated in the present embodiment, the type of the roof material of the sloping roof 300 is not limited. In the following description, the inclination direction of the inclined roof 300 is referred to as the “inclination direction”, and the direction orthogonal to the inclination direction in the installation plane where the solar cell module 3 is installed is referred to as the “beam direction”. In addition, a direction perpendicular to the roof surface of the sloping roof 300 and away from the roof surface is referred to as an upward direction and the opposite direction is referred to as a downward direction. Further, the upper and lower sides in the description of the roof mounting bracket 1 are also the upper and lower sides in the state of being attached to the sloping roof 300.

The roof mounting bracket 1 is a member that is mounted on the sloping roof 300 and can fix the solar cell module 3. The roof mounting bracket 1 extends along the inclination direction. A plurality of roof mounting brackets 1 are provided at intervals in the inclination direction and the girder direction. FIG. 2 is a perspective view showing the roof mounting member and the fastener according to the first embodiment. As shown in FIG. 2, the roof mounting bracket 1 is a grooved steel having an open upper side. The roof mounting bracket 1 has a roof mounting bottom wall portion 1a, two roof mounting side wall portions 1b, two roof mounting upper wall portions 1c, and two roof mounting ridge portions 1d.

FIG. 3 is a side view showing the solar power generation system according to the first embodiment. The roof mounting bottom wall portion 1 a is a plate-shaped portion fixed to the sloping roof 300 with the screw 7. The roof mounting bottom wall portion 1a extends along the inclination direction. The roof mounting bottom wall portion 1 a is arranged on the sloping roof 300. The roof mounting bottom wall portion 1a is formed with a hole 1e penetrating in the vertical direction. A screw 7 for fixing the roof mounting member 1 to the sloping roof 300 is inserted into the hole 1e. The screw 7 that is the fixing member is, for example, a wood screw. The screw 7 is inserted into the pitched roof 300 and penetrates the waterproof layer of the pitched roof 300. It is desirable that the screw 7 is driven into the roof base material so as to obtain a fixing strength capable of withstanding a wind load acting on the solar cell module 3. Thereby, after removing the solar cell module 3, a light-shielding metal fitting described later can be mounted on the roof mounting metal fitting 1 without any problem. The roof base material is, for example, a rafter or a base plate. The head of the screw 7 is covered with a caulking material 8. A butyl sheet 1f is attached to the lower surface of the roof mounting bottom wall portion 1a. As a result, a liquid-tight seal is made between the roof mounting bottom wall portion 1a and the sloping roof 300, and rainwater flowing down on the sloping roof 300 is prevented from entering the holes opened in the sloping roof 300 by the penetration of the screw 7. Can be suppressed.

As shown in FIG. 2, the two roof mounting side wall portions 1b are plate-shaped portions that vertically rise from both ends of the roof mounting bottom wall portion 1a along the girder direction. The two roof mounting side wall portions 1b face each other with a space in the girder direction. In the following description, the direction from one roof mounting side wall 1b to another roof mounting side wall 1b may be referred to as the inside. Further, the surface of the roof mounting side wall portion 1b located inside may be referred to as an inner surface.

The roof mounting upper wall portion 1c is a portion protruding inward from the upper end of the roof mounting side wall portion 1b. The roof mounting upper wall portion 1c is parallel to the roof mounting bottom wall portion 1a. A gap is provided between the two roof mounting upper wall portions 1c. A roof-mounting cutout piece 1g that bends downward is formed at an eave-side end of the roof-mounting upper wall portion 1c along the inclination direction. The roof mounting cutout piece 1g is formed by making two notches in the roof mounting upper wall portion 1c at intervals in the girder direction and pressing downward between the notches. The roof mounting notch 1g plays a role of preventing the fastener 2 from falling off the roof mounting bracket 1. Specifically, when the fastener 2 inserted into the roof mounting bracket 1 slides down toward the eaves, the roof mounting notch 1g abuts the fastener 2 so that the fastener 2 can be removed from the roof mounting bracket 1. Can be prevented.

The roof mounting protrusion 1d is an L-shaped portion that projects inward from a portion of the inner surface of the roof mounting side wall portion 1b that is lower than the roof mounting upper wall portion 1c, and then further projects upward. A gap is provided between the two roof mounting ridges 1d. A gap is provided between the roof mounting ridge 1d and the roof mounting upper wall 1c. The roof mounting ridge 1d movably supports the fastener 2 along the inclination direction.

The fastener 2 is a metal member that is inserted into the roof mounting bracket 1. The fastener 2 has a fastener lateral wall portion 2a and two insertion portions 2b.

The fastener lateral wall portion 2a is a plate-shaped portion extending along the inclination direction. A thick-walled portion 2c having a larger plate thickness than other portions is formed in the central portion of the fastener lateral wall portion 2a along the girder direction. A hole 2d penetrating in the vertical direction is formed in the thick portion 2c. Although illustration is omitted, in the state where the fastener 2 is inserted between the roof mounting upper wall portion 1c and the roof mounting ridge portion 1d, the thick portion 2c has a gap between the two roof mounting upper wall portions 1c. Is located in.

The two insertion portions 2b are plate-shaped portions that hang vertically from both ends of the fastener lateral wall portion 2a along the girder direction. The two fastener lateral wall portions 2a face each other with a gap in the girder direction. Although illustration is omitted, the insertion portion 2b is arranged between the roof mounting upper wall portion 1c and the roof mounting ridge portion 1d. The width of the fastener 2 along the girder direction is smaller than the distance between the two roof mounting side wall portions 1b and smaller than the distance between the two roof mounting upper wall portions 1c and the distance between the two roof mounting ridge portions 1d. large.

As shown in FIG. 1, a plurality of solar cell modules 3 are installed side by side in the tilt direction and the girder direction. In the example of FIG. 1, the solar cell modules 3 are installed in a total of four pieces, two pieces in the tilt direction and two pieces in the girder direction. The size of the solar cell module 3, the number in the tilt direction, and the number in the girder direction may be appropriately changed according to the shape and area of the tilted roof 300. The solar cell module 3 has a solar cell panel 3a and a holding frame 3b that holds the outer edge of the solar cell panel 3a.

The solar cell panel 3a is a plate-shaped member having a rectangular shape in plan view. The solar cell panel 3a is installed with the longitudinal direction facing the girder direction. Although illustration is omitted, the solar battery panel 3a includes a plurality of solar battery cells arranged in an array. A solar cell is a photoelectric conversion unit that converts sunlight into electric power. The plurality of solar cells are connected in series or in parallel. Although illustration is omitted, glass, which is a transparent substrate, is arranged on the light receiving surface of the solar cell. Although not shown, the solar battery panel 3a has a plurality of solar battery cells sealed with an electrically insulating material such as ethylene vinyl acetate (Ethylene-Vinyl Acetate, EVA) resin or polyethylene terephthalate (PET) resin. Is formed.

The holding frame 3b is a metal member attached over the entire circumference of the outer edge of the solar cell panel 3a. The holding frame 3b is formed in a rectangular frame shape that fits the outer shape of the solar cell panel 3a. As shown in FIG. 3, the holding frame 3b is arranged on the roof mounting upper wall portion 1c.

The module fixing bracket 4 is a member arranged on the roof mounting bracket 1 and for fixing the solar cell module 3, the eaves cover 5 and the ridge cover 6 to the roof mounting bracket 1. That is, the solar cell module 3, the eaves cover 5, and the ridge cover 6 are fixed to the sloping roof 300 via the module fixing bracket 4 and the roof mounting bracket 1. The module fixing brackets 4 are installed between the solar cell modules 3 adjacent to each other in the inclination direction, between the solar cell module 3 and the eaves cover 5, and between the solar cell module 3 and the ridge cover 6. The module fixing bracket 4 extends along the girder direction. The module fixing bracket 4 intersects with the roof mounting bracket 1 when viewed from above. The module fixing bracket 4 is a grooved steel having an open upper side. The module fixing bracket 4 has a module bottom wall portion 4a, two module side wall portions 4b, and two holding portions 4c.

The module bottom wall portion 4a is a plate-shaped portion extending along the girder direction. The module bottom wall portion 4a is arranged on the roof mounting upper wall portion 1c and the thick portion 2c. The module bottom wall portion 4a is fixed to the fastener lateral wall portion 2a with a bolt 9. In this embodiment, the module fixing bracket 4 and the fastener 2 are fixed to each other by the bolts 9, so that the module fixing bracket 4 is fixed to the roof mounting bracket 1. That is, the module fixing bracket 4 is fixed to the roof mounting bracket 1 via the fastener 2.

The two module side wall portions 4b are plate-shaped portions that vertically rise along the solar cell module 3, the eaves cover 5, or the ridge cover 6 from both ends of the module bottom wall portion 4a along the inclination direction. The two module side wall portions 4b are opposed to each other with a space in the inclination direction.

The holding portion 4c is a portion protruding from the upper end portion of the module side wall portion 4b toward the solar cell module 3, the eaves cover 5, or the ridge cover 6. The holding portion 4c holds the holding frame 3b, the eaves cover 5 or the ridge cover 6 from above. The solar cell module 3, the eaves cover 5, and the ridge cover 6 are sandwiched between the holding portion 4c and the roof mounting upper wall portion 1c. The height from the lower surface of the module bottom wall portion 4a to the lower surface of the pressing portion 4c is preferably set to be lower than the height of the holding frame 3b by about several mm. With this setting, the solar cell module 3 can be securely pressed by the pressing portion 4c with the bolt 9 fastened.

As shown in FIG. 1, the eaves cover 5 is a decorative material that covers the outer edge of the eaves side of the outer peripheral edges of the solar cell module 3 located closest to the eaves. The length of the eaves cover 5 along the girder direction is the same as the length of the solar cell module 3 along the girder direction. The eaves cover 5 is bridged over two roof mounting brackets 1 provided at intervals along the girder direction.

As shown in FIG. 3, the eaves cover 5 extends between the eaves cover main body 5a and the eaves cover main body 5a so as to be sandwiched between the holding portion 4c and the roof attachment metal fitting 1, and covers the roof attachment metal fitting 1a. And a slanted wall portion 5b. The eaves cover main body portion 5a includes an eaves cover bottom wall portion 5c, an eaves cover side wall portion 5d, an eaves cover upper wall portion 5e, and an eaves cover connection portion 5f.

The eaves cover bottom wall portion 5c is a plate-shaped portion extending along the girder direction. The eaves cover bottom wall portion 5c is arranged on the roof mounting upper wall portion 1c. The eaves cover bottom wall portion 5c extends beyond the eaves side end along the inclination direction of the roof mounting bracket 1.

The eaves cover side wall portion 5d is a plate-shaped portion that rises vertically along the module side wall portion 4b from the ridge-side end of the eaves cover bottom wall portion 5c in the inclination direction. The eaves cover side wall portion 5d is in surface contact with the module side wall portion 4b.

The eaves cover upper wall portion 5e is a portion protruding from the upper end of the eaves cover side wall portion 5d to the eaves side. The dimension of the eaves cover upper wall portion 5e along the inclination direction is smaller than the dimension of the eaves cover bottom wall portion 5c along the inclination direction. The eaves-side end portion of the eaves cover bottom wall portion 5c along the inclination direction is located closer to the eaves side than the eaves-side end portion of the eaves cover upper wall portion 5e along the inclination direction. The eaves cover upper wall portion 5e is in surface contact with the pressing portion 4c. The height from the lower surface of the module bottom wall portion 4a to the lower surface of the pressing portion 4c may be set to be about several mm lower than the height from the lower surface of the eaves cover bottom wall portion 5c to the upper surface of the eaves cover upper wall portion 5e. preferable. With this setting, the eaves cover 5 can be reliably pressed by the pressing portion 4c with the bolt 9 fastened.

The eaves cover connecting portion 5f is a portion that connects the eaves-side end portion of the eaves cover bottom wall portion 5c along the inclination direction and the eaves-side end portion of the eaves cover upper wall portion 5e along the inclination direction. The eaves cover connecting portion 5f is inclined so as to be located on the eaves side as it goes from the eaves cover upper wall portion 5e to the eaves cover bottom wall portion 5c.

The slanted wall portion 5b is a portion that hides the eave-side end portion along the inclination direction of the roof mounting member 1. The slanted wall portion 5b extends obliquely downward from the boundary between the eaves cover connecting portion 5f and the eaves cover bottom wall portion 5c. The slanted wall portion 5b is inclined so as to be located on the eaves side as it goes downward. The inclined wall portion 5b is located on an extension of the eaves cover connecting portion 5f.

As shown in FIG. 1, the ridge cover 6 is a decorative material that covers the ridge-side outer edge of the outer peripheral edges of the solar cell module 3 located closest to the ridge. The length of the ridge cover 6 along the girder direction is the same as the length of the solar cell module 3 along the ridge direction. The ridge cover 6 is bridged over two roof mounting brackets 1 provided at intervals along the girder direction. As shown in FIG. 3, the ridge cover 6 is sandwiched between the pressing portion 4c and the roof mounting member 1. The ridge cover 6 has a ridge cover bottom wall portion 6a, a ridge cover side wall portion 6b, a ridge cover upper wall portion 6c, and a ridge cover connecting portion 6d.

The ridge cover bottom wall portion 6a is a plate-shaped portion extending along the girder direction. The ridge cover bottom wall portion 6a is arranged on the roof mounting upper wall portion 1c.

The ridge cover side wall portion 6b is a plate-shaped portion that rises vertically along the module side wall portion 4b from an eave-side end portion along the inclination direction of the ridge cover bottom wall portion 6a. The ridge cover side wall portion 6b is in surface contact with the module side wall portion 4b.

The ridge cover upper wall portion 6c is a portion protruding from the upper end of the ridge cover side wall portion 6b to the ridge side. The dimension of the ridge cover upper wall portion 6c along the inclination direction is smaller than the dimension of the ridge cover bottom wall portion 6a along the inclination direction. The ridge-side end of the ridge cover bottom wall portion 6a along the inclination direction is located closer to the ridge than the ridge-side end of the ridge cover upper wall portion 6c along the inclination direction. The ridge cover upper wall portion 6c is in surface contact with the pressing portion 4c. The height from the lower surface of the module bottom wall portion 4a to the lower surface of the pressing portion 4c may be set to be about several mm lower than the height from the lower surface of the ridge cover bottom wall portion 6a to the upper surface of the ridge cover upper wall portion 6c. preferable. With this setting, the ridge cover 6 can be securely pressed by the pressing portion 4c with the bolt 9 fastened.

The ridge cover connecting portion 6d is a portion that connects the ridge-side end portion of the ridge cover bottom wall portion 6a along the inclination direction and the ridge-side end portion of the ridge cover upper wall portion 6c along the inclination direction. The ridge cover connecting portion 6d is inclined so as to be located on the ridge side as it goes from the ridge cover upper wall portion 6c to the ridge cover bottom wall portion 6a.

Next, a construction method of the solar power generation system 100 will be described.

First, the installation position of the solar cell module 3 shown in FIG. 1 is confirmed, the roof surface of the sloping roof 300 is marked, and the installation position of the roof mounting bracket 1 is determined. Then, a pilot hole is preliminarily formed in the sloping roof 300 at a position where the screw 7 for fixing the roof mounting member 1 is driven. A caulking material such as rubber asphalt or silicone is injected into the pilot hole. Subsequently, as shown in FIG. 3, the roof mounting member 1 is arranged on the sloping roof 300, and the screw 7 is inserted into the hole 1e of the roof mounting member 1 and driven into the lower hole of the sloping roof 300. The screw 7 is driven in until it reaches a roof base material such as rafters. After that, the caulking material 8 is filled around the roof mounting bracket 1 and the heads of the screws 7.

Next, the insertion portion 2b of the fastener 2 shown in FIG. 2 is inserted between the roof mounting upper wall portion 1c and the roof mounting ridge portion 1d, and the fastener 2 is inserted into the roof mounting bracket 1. After that, as shown in FIG. 3, the module fixing bracket 4 is arranged on the fastener lateral wall 2a and the roof mounting upper wall 1c, and the module fixing bracket 4 and the fastener 2 are temporarily fixed with the bolt 9. As a result, the roof mounting member 1, the fastener 2 and the module fixing member 4 are integrated. In the temporarily fixed state, the roof mounting upper wall portion 1c is lightly sandwiched between the fastener 2 and the module fixing bracket 4 so that the fastener 2 can move. That is, the fastener 2 and the module fixing bracket 4 are integrated with the roof mounting bracket 1 so as to be freely movable in the inclination direction. At this time, even if the fastener 2 and the module fixing bracket 4 slide down toward the eaves due to their own weight, the roof mounting notch 1g of the roof mounting bracket 1 shown in FIG. It is possible to prevent the fastener 2 and the module fixing bracket 4 from falling off. The fastener 2 and the module fixing bracket 4 may be temporarily fixed with the bolt 9 and then the fastener 2 may be inserted into the roof mounting bracket 1.

Next, the eaves cover 5, the eaves side solar cell module 3, and the ridge side solar cell module are provided on the roof mounting bracket 1 while appropriately adjusting the position of the module fixing bracket 4 shown in FIG. 3 along the inclination direction. 3. Install the ridge cover 6 from the eave side. With the eaves cover 5, the solar cell module 3 and the ridge cover 6 in close contact with the module fixing bracket 4, the bolts 9 are fully tightened so that the eaves cover 5, the solar cell module 3 and the ridge cover 6 are attached to the roof mounting bracket 1. Book fixed on top. Specifically, the eaves cover 5, the solar cell module 3, and the ridge cover 6 are sandwiched and fixed between the pressing portion 4c and the roof mounting upper wall portion 1c. Further, the roof mounting upper wall portion 1c is strongly sandwiched between the fastener 2 and the module fixing bracket 4, and movement of the fastener 2 and the module fixing bracket 4 is restricted. The solar power generation system 100 is constructed as described above.

Next, the light shielding system 200 will be described.

FIG. 4 is a diagram showing the light shielding system according to the first embodiment, and is a perspective view showing a state in which the light shielding metal fitting is attached to the roof mounting metal fitting and the fastener. The light shielding system 200 is a system for shielding the roof mounting bracket 1 left on the sloping roof 300 after the solar cell module 3 is removed. The light blocking system 200 includes a roof mounting member 1, a fastener 2, and a light blocking member 10. The roof mounting bracket 1 and the fastener 2 are shared by the solar power generation system 100 and the light shielding system 200. The light shielding metal member 10 is a member that can be fixed to the roof mounting metal member 1 that is mounted on the sloping roof 300.

The light-shielding metal fitting 10 includes a mounting portion 10a mounted on the roof mounting metal fitting 1, an eaves portion 10b, and a vertical wall portion 10c.

FIG. 5 is a perspective view showing the light shielding fitting according to the first embodiment. In FIG. 5, the pitched roof 300 is shown for ease of explanation. The mounting portion 10a is a plate-shaped portion that extends along the inclination direction. The mounting portion 10a is formed in a rectangular shape in plan view. A hole 10g penetrating in the vertical direction is formed in the mounting portion 10a.

The eaves portion 10b is a plate-shaped portion extending along the inclination direction. The eaves portion 10b is formed in a rectangular shape in plan view. The eaves portion 10b is arranged below the mounting portion 10a with a gap. The length of the eaves portion 10b along the inclination direction is larger than the length of the attachment portion 10a along the inclination direction. The eaves portion 10b extends toward the ridge side from the attachment portion 10a.

The vertical wall portion 10c connects the eaves-side end portion of the mounting portion 10a in the inclination direction and the eaves-side end portion of the eaves portion 10b in the inclination direction, and extends in the up-down direction. Is. The shape of the vertical wall portion 10c when viewed from the inclination direction is a rectangular shape. The in-plane direction of the vertical wall portion 10c coincides with the inclination direction. The vertical wall portion 10c is a single continuous wall, but in the first embodiment, the vertical wall portion 10c will be described by dividing it into a connecting portion 10d, a snow stop portion 10e, and a design portion 10f in terms of function. In the connecting portion 10d, the snow stopper 10e, and the design portion 10f, the uppermost end is referred to as "upper end", and the lowermost end is referred to as "lower end".

The connecting portion 10d is a portion that connects the eaves-side end portion of the mounting portion 10a along the inclination direction and the eaves-side end portion of the eaves portion 10b along the inclination direction. The snow stopper 10e is a portion that extends upward from the upper end of the connecting portion 10d and that protrudes above the mounting portion 10a. The snow stopper 10e plays a role of preventing snow accumulated on the sloping roof 300 from sliding off. The design portion 10f is a portion that extends downward from the lower end of the connecting portion 10d and projects below the eaves portion 10b.

As shown in FIG. 4, the light shielding member 10 is installed at the end of the roof mounting member 1 on the eaves side along the inclination direction. The mounting portion 10a is bridged over the two roof mounting upper wall portions 1c. FIG. 6 is a sectional view taken along line VI-VI of FIG. A bolt 9 for fixing the light-shielding metal fitting 10 to the fastener 2 is inserted into the hole 10g of the mounting portion 10a and the hole 2d of the fastener lateral wall portion 2a. In the present embodiment, the light shielding metal fitting 10 is fixed to the roof mounting metal fitting 1 by screwing the bolt 9 passed through the hole 10g of the light shielding metal fitting 10 into the hole 2d of the fastener 2. That is, the light shielding metal member 10 is fixed to the roof mounting metal member 1 via the fastener 2. It is preferable that the roof mounting bracket 1, the light shielding bracket 10 and the bolt 9 which are easily exposed to rainwater are subjected to a surface treatment such as plating or rust preventive coating, or are made of aluminum, stainless steel or the like having excellent corrosion resistance.

The eaves portion 10b is inserted between the roof mounting ridge portion 1d and the roof mounting bottom wall portion 1a. The eaves portion 10b covers a plurality of screws 7 provided at intervals in the inclination direction. The eaves portion 10b is arranged above the caulking material 8 provided on the head of the screw 7 with a gap. The eaves portion 10b plays a role of suppressing direct sunlight and rainwater from directly contacting the caulking material 8.

The vertical wall portion 10c is arranged on the eaves side of the roof mounting bracket 1 and covers the eaves side end of the roof mounting bracket 1 along the inclination direction. The vertical wall portion 10c is perpendicular to the sloping roof 300. The snow stopper 10e projects above the roof mounting upper wall 1c. It should be noted that the surface of the snow stopper 10e of the vertical wall 10c facing the ridge may be at least vertical to the sloping roof 300.

The design portion 10f covers a portion of the opening at the eave-side end portion along the inclination direction of the roof mounting bracket 1 that is lower than the eaves portion 10b. The lower end of the design portion 10f is arranged below the mounting portion 10a and the eaves portion 10b, and above the roof mounting bottom wall portion 1a. The vertical distance D between the lower end of the design portion 10f and the upper surface of the roof mounting bottom wall portion 1a may be set as appropriate, but is preferably set to 3 mm, for example. If the vertical distance D between the lower end of the design portion 10f and the upper surface of the roof mounting bottom wall portion 1a is less than 3 mm, rainwater flowing down along the upper surface of the roof mounting bottom wall portion 1a will flow from the roof mounting bracket 1. It may not be drained smoothly. On the other hand, if the vertical distance D between the lower end of the design portion 10f and the upper surface of the roof mounting bottom wall portion 1a exceeds 3 mm, the exposed range of the roof mounting bracket 1 may increase and the design of the building may be impaired. is there. The distance E along the inclination direction between the surface of the design portion 10f facing the ridge side and the surface of the roof mounting bottom wall portion 1a facing the eaves also affects the drainage of rainwater from the roof mounting bracket 1. Therefore, it is necessary to make an appropriate adjustment.

Next, a construction method of the light shielding system 200 will be described.

FIG. 7 is a process diagram showing a method of constructing the light shielding system according to the first embodiment. The construction method of the light shielding system 200 includes a solar cell module removing step and a light shielding metal fixing step. The solar cell module removing step is a step of removing the solar cell module 3 from the roof mounting member 1 fixed by screws 7 on the sloping roof 300 shown in FIG. In the solar cell module removing step, the bolt 9 is removed, and the module fixing bracket 4, the solar cell module 3, the eaves cover 5, and the ridge cover 6 are removed from the top of the sloping roof 300. The roof mounting bracket 1 and the fastener 2 are left on the sloping roof 300.

As shown in FIG. 6, the light shielding metal fitting step is a step of fixing the light shielding metal 10 to the roof mounting metal fitting 1 from which the solar cell module 3 has been removed. In the step of fixing the light-shielding metal fitting, the mounting portion 10a is mounted on the roof mounting metal fitting 1, and the caulking material 8 is covered with the eaves portion 10b. Specifically, the mounting portion 10a is arranged on the roof mounting upper wall portion 1c, and the eaves portion 10b is inserted between the roof mounting ridge portion 1d and the roof mounting bottom wall portion 1a. As a result, the caulking material 8 is covered with the eaves portion 10b. Next, the bolt 9 is inserted into the hole 10g of the mounting portion 10a and the hole 2d of the fastener lateral wall portion 2a. As a result, the light shielding member 10 is fixed to the roof mounting member 1 via the fastener 2. The light shielding system 200 is constructed as described above.

Next, the function and effect of the light blocking system 200 and the light blocking fitting 10 will be described.

As shown in FIG. 6, in Embodiment 1, when the solar cell module 3 is removed from the sloping roof 300, the light shielding metal fitting 10 is attached to the roof mounting metal fitting 1 remaining on the sloping roof 300. Since the light-shielding metal fitting 10 has the eaves portion 10b provided on the head of the screw 7 to cover the caulking material 8, it is possible to prevent the caulking material 8 from being exposed to direct sunlight, so that deterioration of the caulking material 8 is suppressed. You can It is also possible to prevent rainwater from directly hitting the caulking material 8 at the eaves portion 10b. Thereby, even after the solar cell module 3 is removed, it is possible to suppress rain leakage from the hole of the waterproof layer opened by the penetration of the screw 7.

Further, by leaving the roof mounting member 1 on the sloping roof 300, it is not necessary to remove the screw 7, so that the hole of the waterproof layer opened by the penetration of the screw 7 can be left closed with the screw 7. Thereby, it is possible to suppress rain leakage from the hole opened by the penetration of the screw 7.

When the roof mounting bracket 1 is removed together with the solar cell module 3 from the sloping roof 300, repair work is required to prevent rain leakage from the holes of the waterproof layer opened by the penetration of the screws 7. For example, large-scale repair work such as peeling off the roofing material and increasing the waterproof layer is required, which increases construction costs and construction days. In this respect, in the present embodiment, although the work for attaching the light shielding metal fitting 10 to the roof mounting metal fitting 1 is required, the roof mounting metal fitting 1 is left on the sloping roof 300, and the waterproof layer opened by the penetration of the screw 7 is used. Since the hole can be left closed with the screw 7, a large-scale repair work is unnecessary. As a result, the construction cost and the number of construction days can be reduced as compared with the case where the roof mounting bracket 1 is removed.

As shown in FIG. 6, since the eaves portion 10b is disposed above the caulking material 8 with a gap, the eaves portion 10b and the caulking material 8 are prevented from contacting with each other, and the caulking material 8 is cracked or peeled off. Can be prevented.

As shown in FIG. 6, the lower end of the design portion 10f is disposed above the roof mounting bottom wall portion 1a, and the distance between the lower end of the design portion 10f and the upper surface of the roof mounting bottom wall portion 1a in the vertical direction. By setting D to 3 mm, rainwater flowing down along the upper surface of the roof mounting bottom wall portion 1a can be smoothly drained without being obstructed by the design portion 10f, and the exposed range of the roof mounting bracket 1 can be reduced. The design of the building can be improved.

As shown in FIG. 6, the light blocking member 10 includes a snow stopper 10e that is perpendicular to the sloping roof 300, and the snow stopper 10e serves to prevent snow accumulated on the sloping roof 300 from sliding off. Thereby, the light shielding member 10 can also be used as a snow stopper.

Here, with reference to FIG. 6, the relationship between the eaves portion 10b, the roof slope, and the sun altitude will be described in detail. If the design portion 10f shown in FIG. 6 is not provided, the roof mounting bracket 1 is directly exposed to the inside of the roof mounting bracket 1 from a portion below the eaves portion 10b in the opening at the eaves side along the inclination direction. There is a possibility that sunlight will enter and the incident direct sunlight will hit the caulking material 8. In the following description, it is assumed that the design portion 10f is not provided. In this case, the longer the length a along the inclination direction from the eaves-side end of the eaves portion 10b along the inclination direction to the screw 7 located closest to the eaves, the longer the caulking provided on the head of the screw 7. The effect of suppressing direct sunlight on the material 8 is enhanced. On the other hand, the shorter the distance b from the lower surface of the eaves portion 10b to the caulking material 8 which is the upper end of the screw 7, the more the effect of suppressing direct sunlight from hitting the caulking material 8 provided on the head of the screw 7. These relationships can be expressed by the following equation (1) when the roof slope is S and the sun altitude is H.
a×tan(S+H)÷b≧1...(1)

Here, for example, it is assumed that the roof mounting member 1 and the light shielding member 10 are installed on the south surface of the four-slope inclined roof 300 to prevent the direct sunlight from hitting the caulking material 8 at 2:00 pm of the winter solstice. The roof slope S of the sloping roof 300 having a 4 inch slope is about 21.4 degrees. The sun altitude H at 2:00 pm varies depending on the latitude of the place where the building is installed, but is 13 degrees, for example. If the length a along the inclination direction from the eave-side end of the eaves portion 10b along the inclination direction to the screw 7 located closest to the eaves is 50 mm, the screw 7 is attached to the lower surface of the eaves portion 10b. The distance b to the caulking material 8, which is the upper end, is a value satisfying 50 mm×tan (21.4 degrees+13 degrees)÷b≧1 from the formula (1), that is, 34 mm or less. That is, if the distance b from the lower surface of the eaves portion 10b to the caulking material 8 that is the upper end of the screw 7 is 34 mm or less, it is possible to prevent direct sunlight from hitting the caulking material 8.

By the way, according to the above formula (1), when the sun height H is 0 degree on the sloping roof 300 having a four-dimensional slope, the eaves portion 10b is located closest to the eaves from the end on the eaves side along the inclination direction. When the length a along the inclination direction to the screw 7 is set to 50 mm, if the distance b from the lower surface of the eaves portion 10b to the caulking material 8 which is the upper end of the screw 7 is 19 mm or less, direct sunlight is caulked. It will not hit the material 8. That is, the caulking material 8 is not exposed to direct sunlight from sunrise to sunset. On the other hand, if the distance b from the lower surface of the eaves portion 10b to the caulking material 8 which is the upper end of the screw 7 is 19 mm when the sun altitude H is 0 degree on the four-slope inclined roof 300, the eaves portion 10b If the length a along the direction of inclination from the eave-side end along the direction of inclination to the screw 7 located closest to the eaves is set to 50 mm or more, direct sunlight will not hit the caulking material 8. .. That is, the caulking material 8 is not exposed to direct sunlight from sunrise to sunset. Therefore, when the equation (2) of a×tanS÷b≧1 is satisfied, it is possible to prevent the direct sunlight of the sun facing the front of the sloping roof 300 from hitting the caulking material 8 at all times.

In the above description of the relationship between the eaves portion 10b, the roof slope, and the sun altitude, it is assumed that the design portion 10f is not provided. Even if the design portion 10f is not provided, it is possible to always prevent the direct sunlight of the sun from hitting the caulking material 8 by satisfying the above formula (1). On the other hand, in the first embodiment, the design portion 10f is provided, and in the example shown in FIG. 6, the design portion 10f prevents the caulking material 8 from direct sunlight. In the example shown in FIG. 6, the roof mounting bracket 1 is provided with a design portion 10f that covers a lower portion of the opening on the eave side along the inclination direction of the roof eaves portion, and the lower end of the design portion 10f is a caulking material. Since it is lower than the upper end of 8, the caulking material 8 is not exposed to direct sunlight from sunrise to sunset.

Embodiment 2.
A solar power generation system, a light shielding metal, and a light shielding system according to the second embodiment will be described. First, the photovoltaic power generation system according to Embodiment 2 will be described. FIG. 8: is a perspective view which shows the solar power generation system which concerns on Embodiment 2 of this invention. The solar power generation system 100A according to the second embodiment differs from the first embodiment described above in that the roof mounting bracket 11 and the vertical rail 12 are provided. In the second embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

The solar power generation system 100A includes a roof mounting member 11, a vertical rail 12, a fastener 2, a solar cell module 3, a module fixing member 4, an eaves cover 5, and a ridge cover 6. In addition, although the case where the roof material of the pitched roof 300 is a metal roofing roof material is illustrated in this Embodiment, it does not mean that the type of the roof material of the pitched roof 300 is limited.

The roof mounting bracket 11 extends along the girder direction. The longitudinal direction of the roof mounting bracket 11 is orthogonal to the longitudinal direction of the vertical rail 12. The plurality of roof mounting brackets 11 are provided at intervals in the inclination direction and the girder direction. FIG. 9 is a perspective view showing a roof mounting bracket according to the second embodiment. The roof mounting bracket 11 includes a roof mounting bottom wall portion 11a, two roof mounting side wall portions 11b, two roof mounting upper wall portions 11c, and a partition wall portion 11d.

FIG. 10 is a side view showing the solar power generation system according to the second embodiment. The roof mounting bottom wall portion 11 a is a plate-shaped portion fixed to the sloping roof 300 with the screw 13. The roof mounting bottom wall portion 11a extends along the girder direction. The roof mounting bottom wall portion 11 a is arranged on the sloping roof 300. Here, a portion of the roof mounting bottom wall portion 11a that extends toward the ridge side from the roof mounting side wall portion 11b located on the ridge side is referred to as a first flange 11e. A portion of the roof mounting bottom wall portion 11a that extends toward the eaves side than the roof mounting side wall portion 11b located on the eaves side is referred to as a second flange 11f. The first flange 11e and the second flange 11f are formed with holes 11g penetrating in the vertical direction. A screw 13 for fixing the roof mounting member 11 to the sloping roof 300 is inserted into the hole 11g. A butyl sheet 11h is attached to the lower surface of the roof mounting bottom wall portion 11a. Thus, the space between the roof mounting bottom wall portion 11a and the sloping roof 300 is liquid-tightly sealed, and rainwater flowing down on the sloping roof 300 is prevented from entering the holes opened in the sloping roof 300 by the penetration of the screw 13. Can be suppressed.

As shown in FIG. 9, the two roof mounting side wall portions 11b are plate-shaped portions that stand upright from the portions of the roof mounting bottom wall portion 11a that are closer to the center than both ends along the inclination direction. The two roof mounting side wall portions 11b are opposed to each other with a space in the inclination direction. In the following description, the direction from one roof mounting side wall 11b to the other roof mounting side wall 11b may be referred to as the inside. Further, a surface of the roof mounting side wall portion 11b located inside may be referred to as an inner surface.

The roof mounting upper wall portion 11c is a portion protruding inward from the upper end of the roof mounting side wall portion 11b. The roof mounting upper wall portion 11c is parallel to the roof mounting bottom wall portion 11a. A gap is provided between the two roof mounting upper wall portions 11c. The shaft portion of the bolt 15 is passed through the gap between the two roof mounting upper wall portions 11c.

The partition wall portion 11d is a portion that connects portions of the two roof mounting side wall portions 11b that are below the roof mounting upper wall portion 11c. The partition wall portion 11d vertically divides a space formed by the roof mounting bottom wall portion 11a, two roof mounting side wall portions 11b, and two roof mounting upper wall portions 11c. The head of the bolt 15 is arranged between the partition wall portion 11d and the roof mounting upper wall portion 11c.

As shown in FIG. 8, the vertical rail 12 is a metal member mounted on the roof mounting bracket 11. The vertical rail 12 extends along the inclination direction. A plurality of vertical bars 12 are provided at intervals in the girder direction. FIG. 11 is a perspective view showing a vertical rail and a fastener according to the second embodiment. The vertical bar 12 is a grooved steel having an open upper side. The vertical rail 12 has a vertical rail bottom wall portion 12a, two vertical rail side wall portions 12b, two vertical rail upper wall portions 12c, and two vertical rail projections 12d.

As shown in FIG. 10, the vertical rail bottom wall portion 12 a is a plate-shaped portion fixed to the roof mounting member 11 with bolts 15. The vertical rail bottom wall portion 12a extends along the inclination direction. The vertical rail bottom wall portion 12a is arranged on the roof mounting upper wall portion 11c. An elongated hole (not shown) is formed in the vertical crosspiece bottom wall portion 12a so as to penetrate vertically. In the present embodiment, the bolt 15 is inserted into the long hole of the vertical crosspiece bottom wall portion 12a and the gap between the two roof mounting upper wall portions 11c, and the nut 16 is tightened to the bolt 15, so that the vertical crosspiece 12 is removed from the roof. It is fixed to the mounting bracket 11. The type of the bolt 15 is not particularly limited, but a root angle bolt is used in this embodiment.

As shown in FIG. 11, the two vertical rail side wall portions 12b are plate-shaped portions that vertically rise from both ends of the vertical rail bottom wall portion 12a along the girder direction. The two vertical rail side wall portions 12b face each other with a gap in the girder direction. In the following description, the direction from one vertical rail side wall 12b to the other vertical rail side wall 12b may be referred to as the inside. In addition, the surface of the vertical rail side wall portion 12b located inside may be referred to as an inner surface.

The vertical rail upper wall portion 12c is a portion that protrudes inward from the upper end of the vertical rail sidewall portion 12b. The vertical rail upper wall portion 12c is parallel to the vertical rail bottom wall portion 12a. A gap is provided between the two vertical rail upper wall portions 12c. A vertical rail cutout piece 12f that bends downward is formed at an eave-side end portion along the inclination direction of the vertical rail upper wall portion 12c. The vertical rail cutout piece 12f is formed by making two notches in the vertical rail upper wall portion 12c at intervals in the girder direction and pressing downward between the notches. The vertical rail cutout piece 12f serves to prevent the fastener 2 from falling off the vertical rail 12. Specifically, when the fastener 2 inserted in the vertical rail 12 slides down toward the eaves, the vertical rail cutout piece 12f contacts the fastener 2 to prevent the fastener 2 from falling off the vertical rail 12. You can

The vertical rail protrusion 12d is an L-shaped portion that protrudes inward from a portion of the inner surface of the vertical rail sidewall 12b that is lower than the vertical rail upper wall 12c, and then further protrudes upward. A gap is provided between the two vertical bar protrusions 12d. A gap is provided between the vertical rail projection 12d and the vertical rail upper wall portion 12c. The vertical bar projection 12d supports the fastener 2 so as to be movable along the inclination direction.

The fastener 2 is inserted between the vertical rail upper wall portion 12c and the vertical rail projection 12d. In a state where the fastener 2 is inserted between the vertical rail upper wall portion 12c and the vertical rail projection strip portion 12d, the thick portion 2c is arranged in a gap between the two vertical rail upper wall portions 12c. The insertion portion 2b is arranged between the vertical rail upper wall portion 12c and the vertical rail projection 12d. The insertion portion 2b is supported by the vertical rail projection 12d.

As shown in FIG. 10, the module fixing bracket 4 is a member that is arranged on the vertical rail 12 and fixes the solar cell module 3, the eaves cover 5 and the ridge cover 6 to the vertical rail 12. That is, the solar cell module 3, the eaves cover 5, and the ridge cover 6 are fixed to the sloping roof 300 via the module fixing bracket 4, the vertical rail 12, and the roof mounting bracket 11. The module fixing bracket 4 intersects the vertical rail 12 when viewed from above.

The module bottom wall portion 4a is arranged on the vertical rail upper wall portion 12c and the thick portion 2c. In this embodiment, the module fixing bracket 4 and the fastener 2 are fixed by the bolts 9, so that the module fixing bracket 4 is fixed to the vertical rail 12. That is, the module fixing bracket 4 is fixed to the vertical rail 12 via the fastener 2. The solar cell module 3, the eaves cover 5, and the ridge cover 6 are sandwiched between the holding portion 4c and the vertical crossbar upper wall portion 12c. The eaves cover bottom wall portion 5c extends beyond the eaves side end along the inclination direction of the vertical crosspiece 12 toward the eaves side. The slant wall portion 5b extends below the eaves cover main body portion 5a and covers the eaves side end portion along the inclination direction of the vertical crosspiece 12.

Next, the light shielding system 200A will be described.

FIG. 12 is a diagram showing the light shielding system according to the second embodiment, and is a perspective view showing a state in which the light shielding metal is attached to the roof mounting metal. The light blocking system 200A is a system for blocking the roof mounting bracket 11 left on the sloping roof 300 after the removal of the solar cell module 3. The light blocking system 200A includes a roof mounting member 11 and a light blocking member 17. The roof mounting bracket 11 is shared by the solar power generation system 100 and the light shielding system 200A. The light shielding metal 17 is a member that can be fixed to the roof mounting metal 11 that is mounted on the sloped roof 300.

FIG. 13 is a perspective view showing the light shielding fitting according to the second embodiment. The light-shielding metal member 17 includes a mounting portion 18, two overhang portions 19, two connecting portions 20, a snow stopper 21, and an inclined wall portion 22.

The mounting portion 18 is a plate-shaped portion extending along the girder direction. The mounting portion 18 is formed in a rectangular shape in plan view. The mounting portion 18 is formed with a hole 18a penetrating in the vertical direction.

The connection portion 20 is a portion that connects the attachment portion 18 and the eaves portion 19. The two connecting portions 20 extend from both end portions along the inclination direction of the attachment portion 18 toward the inclined roof 300. The two connecting portions 20 face each other with a gap in the tilt direction. When distinguishing the two connecting portions 20, the connecting portion 20 extending from the ridge-side end of the attaching portion 18 along the inclination direction toward the sloping roof 300 is referred to as a first connecting portion 20A, and the attaching portion 18 of The connecting portion 20 extending from the end on the eaves side along the inclination direction toward the inclined roof 300 is referred to as a second connecting portion 20B.

The eaves portion 19 is a plate-shaped portion extending along the girder direction. The eaves portion 19 is formed in a rectangular shape in plan view. When distinguishing the two eaves portions 19, the eaves portion 19 extending from the lower end of the first connecting portion 20A toward the ridge is referred to as the first eaves portion 19A, and the eave portion is directed from the lower end of the second connecting portion 20B toward the eaves. The eaves portion 19 extending in this manner is referred to as a second eaves portion 19B. The eaves portion 19 is arranged at a position lower than the mounting portion 18.

The snow stopper 21 is a portion that extends upward from the boundary between the mounting portion 18 and the second connecting portion 20B and projects above the mounting portion 18. The in-plane direction of the snow stopper 21 coincides with the inclination direction. The snow stopper 21 serves to prevent the snow accumulated on the sloping roof 300 from sliding off.

The inclined wall portion 22 is a portion that connects the upper end of the snow stopper 21 and the eave-side end portion along the inclination direction of the second eaves portion 19B. The inclined wall portion 22 is inclined so that it is located on the eave side as it goes from the upper end of the snow stopper 21 to the end portion on the eaves side along the inclination direction of the second eaves portion 19B. When the light shielding metal member 17 is viewed from the girder direction, the shape formed by the snow retaining portion 21 and the second connecting portion 20B which are vertical wall portions, the second eaves portion 19B, and the inclined wall portion 22 is a triangular frame shape. .. The snow stopper 21, the second connecting portion 20B, the second overhang 19B, and the inclined wall portion 22 form a closed cross-section structure in a vertical cross section cut along the inclination direction.

As shown in FIG. 12, the light shielding member 17 is installed on the roof mounting member 11. The mounting portion 18 is bridged over the two roof mounting upper wall portions 11c. FIG. 14 is a sectional view taken along line XIV-XIV in FIG. A bolt 15 for fixing the light-shielding metal fitting 17 to the roof mounting metal fitting 11 is inserted into the gap between the hole 18a of the mounting portion 18 and the two roof mounting upper wall portions 11c. In the present embodiment, the bolt 15 is inserted from below into the gap between the roof mounting upper wall portions 11c and the hole 18a of the light-shielding metal fitting 17, and the nut 16 is attached to the shaft portion of the bolt 15 protruding upward from the hole 18a of the light-shielding metal fitting 17. The light shielding metal fitting 17 is fixed to the roof mounting metal fitting 11 by tightening. The roof mounting upper wall portion 11c and the mounting portion 18 are sandwiched between the bolt 15 and the nut 16.

The first eaves portion 19A covers the screw 13 that fixes the first flange 11e to the pitched roof 300. The second eaves portion 19B covers the screw 13 that fixes the second flange 11f to the pitched roof 300. The eaves portion 19 is arranged above the caulking material 14 provided on the head of the screw 13 with a gap. The eaves portion 19 plays a role of suppressing direct sunlight and rainwater from directly contacting the caulking material 14.

The connecting portion 20 is arranged along the roof mounting side wall portion 11b. The second connecting portion 20B, the snow stopper 21, the second eaves portion 19B, and the inclined wall portion 22 are arranged immediately above the second flange 11f. The snow stopper 21 projects above the roof mounting upper wall portion 11c. The snow stopper 21 covers a part of the bolt 15 and the nut 16 from the eaves side. The inclined wall portion 22 covers the snow stopper 21 and the second eaves portion 19B from the eaves side to enhance the design of the light shielding fitting 17, and also supports the snow stopper 21.

Next, a construction method of the light shielding system 200A will be described.

The light shielding system 200A includes a solar cell module removing step and a light shielding metal fitting step. The solar cell module removing step is a step of removing the solar cell module 3 from the roof mounting member 11 fixed to the sloping roof 300 shown in FIG. 10 with the screw 13. In the solar cell module removing step, first, the bolt 9 is removed, and the module fixing bracket 4, the solar cell module 3, the eaves cover 5, and the ridge cover 6 are removed from the top of the sloping roof 300. Subsequently, the bolts 15 are removed, the vertical rails 12 and the fasteners 2 are removed from the roof mounting bracket 11, and the roof mounting bracket 11 is left on the sloping roof 300.

As shown in FIG. 12, the light shielding metal fixing step is a step of fixing the light shielding metal 17 to the roof mounting metal 11 from which the solar cell module 3 has been removed. In the light-shielding metal fitting step, as shown in FIG. 14, the mounting portion 18 is mounted on the roof mounting metal fitting 11 with the bolt 15 and the nut 16, and the caulking material 14 is covered with the eaves portion 19. As a result, the light shielding member 17 is fixed to the roof mounting member 11. The light blocking system 200A is constructed as described above.

Also according to the second embodiment, the same operational effect as that of the first embodiment can be obtained. In addition, in the second embodiment, when the light-shielding fitting 17 is viewed from the girder direction, the shape formed by the snow stopper 21, the second connecting portion 20B, the second eaves portion 19B, and the inclined wall portion 22 is a triangular frame shape. Therefore, it is possible to enhance the aesthetic appearance of the light shielding member 17 and improve the design of the building. Further, the snow stopper 21, the second connecting portion 20B, the second eaves portion 19B, and the inclined wall portion 22 constitute a closed sectional structure with a vertical section cut along the inclination direction, and therefore the snow stopper 21 against a snow load. The strength of can be increased.

Note that, for example, in a metal roofing roof material having a large step with a gap in the inclination direction, if the roof mounting member 1 extending along the inclination direction as in the first embodiment is used, the roof mounting member 1 and the step difference are formed. May interfere with each other and cannot be fixed on the sloping roof 300. On the other hand, in the second embodiment, as shown in FIG. 8, by using the roof mounting bracket 11 extending along the girder direction, it is possible to avoid the interference between the roof mounting bracket 11 and the step. Further, by installing the vertical crosspiece 12 on the roof mounting member 11, the vertical crosspiece 12 can be arranged above the step, so that interference between the vertical crosspiece 12 and the step can be avoided. That is, according to the second embodiment, the roof mounting bracket 11 and the vertical rails 12 can be easily mounted on the sloping roof 300 by avoiding the step. The roof mounting bracket 11 and the vertical rails 12 as described above may be used for, for example, a slate roof material or a metal vertical roof material.

Embodiment 3.
The light shielding metal and the light shielding system according to the third embodiment will be described. The solar power generation system according to the third embodiment is similar to the solar power generation system 100 according to the first embodiment, and therefore its description is omitted. 15: is a figure which shows the light-shielding system which concerns on Embodiment 3 of this invention, Comprising: It is a perspective view which shows the state which attached the light-shielding metal fitting to the roof mounting metal fitting and the fastener. The light blocking system 200B according to the third embodiment differs from the above-described first embodiment in the configuration of the light blocking fitting 23. In the third embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted.

The light blocking system 200A is a system for blocking the roof mounting bracket 1 left on the sloping roof 300 after the solar cell module 3 is removed. The light blocking system 200B includes a roof mounting member 1, a fastener 2, and a light blocking member 23. Since the roof mounting bracket 1 and the fastener 2 are the same as those in the first embodiment, the description thereof will be omitted.

The light shielding member 23 is a member that can be fixed to the roof mounting member 1 that is mounted on the sloped roof 300. FIG. 16 is a perspective view showing a light-shielding metal fitting according to the third embodiment. In FIG. 16, a sloping roof 300 is shown for ease of explanation. The light shielding metal member 23 includes a mounting portion 23a, an eaves portion 23b, a rain avoiding portion 23c, and a vertical wall portion 23d. The mounting portion 23a and the eaves portion 23b are one continuous wall, but in the third embodiment, one wall will be described separately for the mounting portion 23a and the eaves portion 23b. In addition, in the attachment portion 23a and the eaves portion 23b, the end portion located closest to the ridge side is referred to as an “end portion on the ridge side”, and the end portion located closest to the eaves is referred to as an “end portion on the eaves side”. In FIG. 16, a boundary line 23g between the mounting portion 23a and the eaves portion 23b is schematically shown.

The attachment portion 23a is a plate-shaped portion extending from the surface of the vertical wall portion 23d facing the ridge side toward the ridge side. The mounting portion 23a extends along the inclination direction. The mounting portion 23a is formed in a rectangular shape in plan view. A hole 23h penetrating in the vertical direction is formed in the mounting portion 23a.

The eaves portion 23b is a plate-shaped portion extending along the inclination direction. The eaves portion 23b extends toward the ridge side from an end portion on the ridge side along the inclination direction of the attachment portion 23a. The eaves portion 23b is formed in a rectangular shape in plan view.

The rain avoidance portion 23c is a plate-shaped portion extending from the ridge-side end of the eave portion 23b along the inclination direction toward the inclined roof 300. The shape of the rain avoiding portion 23c when viewed from the inclination direction is a rectangular shape.

The vertical wall portion 23d is a plate-shaped portion that is continuous with the eave-side end portion of the attachment portion 23a along the inclination direction and extends along the vertical direction. The shape of the vertical wall portion 23d when viewed from the inclination direction is a rectangular shape. The in-plane direction of the vertical wall portion 23d matches the inclination direction. The vertical wall portion 23d is one continuous wall, but in the third embodiment, the vertical wall portion 23d will be described by dividing it into a snow stopper portion 23e and a design portion 23f from the functional aspect. In addition, in the snow stopper 23e and the design portion 23f, the uppermost end is referred to as an "upper end", and the lowermost end is referred to as a "lower end".

The snow stopper 23e is a portion that protrudes above the mounting portion 23a. The snow stopper 23e serves to prevent the snow accumulated on the sloping roof 300 from sliding off. The design portion 23f is a portion that extends downward from the boundary between the snow retaining portion 23e and the mounting portion 23a and projects below the mounting portion 23a and the eaves portion 23b.

17 is a sectional view taken along line XVII-XVII in FIG. As shown in FIG. 17, the light shielding member 23 is installed on the roof mounting member 1. The mounting portion 23a and the eaves portion 23b are bridged over the two roof mounting upper wall portions 1c. Bolts 26 for fixing the light shielding fitting 23 to the fastener 2 are inserted into the holes 23h of the mounting portion 23a and the holes 2d of the fastener lateral wall portion 2a. In the present embodiment, the light shielding metal fitting 23 is fixed to the roof mounting metal fitting 1 by screwing the bolt 26, which is inserted into the hole 23h of the light shielding metal fitting 23, into the hole 2d of the fastener 2. That is, the light shielding member 23 is fixed to the roof mounting member 1 via the fastener 2.

The eaves portion 23b covers the screw 24. The eaves portion 23b is arranged above the caulking material 25 provided on the head of the screw 24 with a gap. The eaves portion 23b plays a role of suppressing direct sunlight and rainwater from directly contacting the caulking material 25.

The rain avoidance portion 23c covers the opening of the ridge side end portion along the inclination direction of the roof mounting member 1. The rain avoiding portion 23c extends below the upper surface of the roof mounting bottom wall portion 1a. The rain avoidance portion 23c plays a role of suppressing rainwater flowing down on the sloping roof 300 from reaching the caulking material 25.

The vertical wall portion 23d is arranged on the eaves side of the roof mounting bracket 1, and covers the eaves side end of the roof mounting bracket 1 along the inclination direction. The vertical wall portion 23d is perpendicular to the sloping roof 300. The snow stopper 23e projects above the roof mounting upper wall 1c. The design portion 23f covers a portion below the eaves portion 23b in the eave-side end portion along the inclination direction of the roof mounting member 1. The lower end of the design portion 23f is arranged above the roof mounting bottom wall portion 1a.

Next, a construction method of the light shielding system 200B will be described.

The light blocking system 200B includes a solar cell module removing step and a light blocking metal fitting step. Since the solar cell module removing step is the same as that in the first embodiment, its description is omitted.

As shown in FIG. 17, the light shielding metal fitting step is a step of fixing the light shielding metal 23 to the roof mounting metal 1 from which the solar cell module 3 has been removed. In the light-shielding metal fixing step, the attachment portion 23a is attached to the fastener 2 with the bolt 26, and the caulking material 25 is covered with the eave portion 23b. As a result, the light shielding member 23 is fixed to the roof mounting member 1 via the fastener 2. The light shielding system 200B is constructed as described above.

Also according to the third embodiment, the same operational effect as that of the first embodiment can be obtained. Further, in the third embodiment, the light shielding member 23 includes the rain avoiding portion 23c, and the rain avoiding portion 23c covers the opening on the ridge side end of the roof mounting member 1 along the inclination direction. Therefore, the rain avoiding portion 23c can prevent rainwater flowing down on the sloping roof 300 from reaching the caulking material 25.

The configurations described in the above embodiments are examples of the content of the present invention, and can be combined with another known technique, and the configurations of the configurations are not departing from the scope of the present invention. It is also possible to omit or change parts.

For example, in the first to third embodiments, the case where the roof mounting member and the light shielding member are fixed with bolts is illustrated, but tapping screws or the like may be used instead of the bolts.

In the first to third embodiments, the case where the light-shielding metal fitting is provided with a snow stopper is illustrated. However, for example, when the light-shielding metal fitting is used in an area with no snow, an area with little snow, etc. May be deleted. That is, in the light shielding fitting of the present invention, the snow stopper is not an essential component.

1 roof mounting bracket, 1a roof mounting bottom wall part, 1e hole, 2 fastener, 3 solar cell module, 4 module fixing bracket, 5 eaves cover, 6 building cover, 7 screw (fixing member), 8 caulking material, 9 bolt, 10 Light-shielding fitting, 10a Mounting portion, 10b Eaves portion, 10c Vertical wall portion, 10d Connecting portion, 10e Snow stop portion, 10f Design portion, 10g hole, 11 Roof mounting bracket, 11a Roof mounting bottom wall portion, 11g hole, 12 Vertical Crosspiece, 13 screw (fixing member), 14 caulking material, 15 bolt, 16 nut, 17 light-shielding metal fitting, 18 mounting portion, 18a hole, 19 eaves portion, 19A first eaves portion, 19B second eaves portion, 20 connecting portion, 20A 1st connection part, 20B 2nd connection part, 21 snow stop part, 22 slope wall part, 23 light-shielding metal fittings, 23a attachment part, 23b eaves part, 23c rain avoidance part, 23d vertical wall part, 23e snow stop part, 23f Design part, 23h hole, 24 screw (fixing member), 25 caulking material, 26 bolt, 100,100A solar power generation system, 200,200A,200B shading system, 300 pitched roof.

Claims (13)

A roof mounting bracket that can be mounted on a sloping roof that slopes down from the ridge toward the eaves, and can fix the solar cell module,
A fixing member for fixing the roof mounting bracket to the sloping roof,
A light-shielding system comprising: a light-shielding metal member having a mounting portion mounted on the roof mounting metal member and an eaves portion covering the fixing member. The light-shielding metal member has a vertical wall portion extending in the vertical direction,
The light shielding system according to claim 1, wherein the vertical wall portion projects above the roof mounting member, the mounting portion, and the eaves portion. The shading system according to claim 2, wherein a surface of the vertical wall portion facing the ridge is perpendicular to the sloping roof. The said shading part is arrange|positioned above the said fixing member with a space|gap, The light-shielding system of any one of Claim 1 to 3 characterized by the above-mentioned. The roof mounting bracket has a roof mounting bottom wall portion fixed to the sloping roof by the fixing member,
The mounting portion extends along the inclination direction,
The eaves portion is arranged below the mounting portion with a gap,
The vertical wall portion connects the eaves side end portion along the inclination direction of the mounting portion and the eaves side end portion along the inclination direction of the eaves portion,
The light blocking system according to claim 2, wherein a lower end of the vertical wall portion is arranged below the mounting portion and the eaves portion and above the roof mounting bottom wall portion. The eaves portion extends from the lower end of the vertical wall portion toward the eaves,
The light-shielding metal further includes an inclined wall portion that connects an upper end of the vertical wall portion and an end portion on the eaves side along the inclination direction of the eaves portion,
The shape formed by the vertical wall portion, the eaves portion, and the inclined wall portion is a triangular frame shape when the light-shielding metal member is viewed from a girder direction orthogonal to the inclination direction. Shading system. The mounting portion extends toward the ridge side from the surface of the vertical wall portion facing the ridge side,
The eaves portion extends from the ridge-side end portion along the inclination direction of the mounting portion toward the ridge side,
The light-shielding metal fitting further includes a rain avoiding portion that extends from the ridge-side end portion along the inclination direction of the eaves portion toward the inclined roof and covers the roof mounting metal fitting from the ridge side. The shading system according to 2. Of the eaves portion, the length along the inclination direction from the eaves side end portion along the inclination direction to the fixing member is a, and the distance from the lower surface of the eaves portion to the upper end of the fixing member is b, The shading system according to any one of claims 1 to 7, wherein, when a roof slope is S, an expression of a x tanS/b ≥ 1 is established. A light-shielding metal fitting that can be fixed to a roof mounting bracket that is mounted with a fixing member on a sloping roof that slopes down from the ridge to the eaves
A mounting portion mounted on the roof mounting bracket,
A light-shielding metal fitting, comprising: an eaves portion that covers the fixing member. The mounting portion extends along the inclination direction,
The eaves portion is arranged below the mounting portion with a gap,
The light-shielding device according to claim 9, further comprising a connecting portion that connects an eaves-side end portion of the attachment portion along the inclination direction and an eaves-side end portion of the eaves portion along the inclination direction. Metal fittings. The mounting portion extends along the inclination direction,
A first connecting portion extending from the ridge-side end of the mounting portion along the sloping direction toward the sloping roof, and an eaves-side end of the mounting portion along the sloping direction toward the sloping roof. And a second connecting portion,
The eaves portion has a first eaves portion extending from the lower end of the first connecting portion toward the ridge side, and a second eaves portion extending from the lower end of the second connecting portion toward the eaves. The light-shielding metal fitting according to claim 9. The mounting portion extends along the inclination direction,
The eaves portion extends from the ridge-side end portion along the inclination direction of the mounting portion toward the ridge side,
It further has a rain avoiding portion that extends from the ridge-side end of the eaves portion along the ridge side toward the inclined roof and covers the ridge-side end of the roof mounting bracket along the inclination direction. The light-shielding metal fitting according to claim 9. A solar cell module removal process of removing the solar cell module from the roof mounting bracket fixed with a fixing member on the sloping roof that slopes down from the ridge toward the eaves,
The roof mounting member from which the solar cell module has been removed, a light shielding metal fixing step of fixing a light shielding metal having a mounting portion and an eaves portion,
In the step of fixing the light-shielding metal fitting, the mounting portion is mounted to the roof mounting metal fitting, and the fixing member is covered with the eaves portion.