JP7017243B2 - Mounting structure for rooftop installations - Google Patents

Description

The present invention relates to a mounting structure for a roof-mounted object for mounting the roof-mounted object via a gantry above a sheet metal roof having a goby portion thatched on the roof structure.

The first member attached to the goby part so as to be sandwiched from the left and right as a structure for attaching a rooftop installation object such as a solar cell module above the sheet metal roof having a goby part protruding upward, and the first A bolt that is covered from above the member and has a second member having a pair of legs that are in contact with the left and right outer parts of the goby portion, and that protrudes upward from the first member through the second member. (Patent Document 1 and Patent Document 2) have been proposed to attach an object to be installed on the roof using the above.

According to conventional techniques such as Patent Document 1 and Patent Document 2, by placing the rooftop installation on the second member, the weight of the rooftop installation can be reduced to the sheet metal roof via the pair of legs. It will be applied to the main body. As a result, since the weight of the rooftop installation object is not applied to the goby portion, it is possible to prevent the goby portion from being crushed by the weight of the rooftop installation object.

However, in the conventional techniques such as Patent Document 1 and Patent Document 2, since the first member is attached to the haze portion of the sheet metal roof, a force for lifting the roof-mounted object due to a strong wind caused by a typhoon or the like acts. In this case, a force to lift the sheet metal roof acts through the first member, and if the mounting strength of the sheet metal roof to the roof structure is low, the sheet metal roof may be peeled off together with the on-roof installation. was there.

Japanese Unexamined Patent Publication No. 2013-170353 Japanese Unexamined Patent Publication No. 2016-069987

Therefore, in view of the above circumstances, it is an object of the present invention to provide a mounting structure for a rooftop installation that can increase the mounting strength of the rooftop installation for a sheet metal roof.

In order to solve the above-mentioned problems, the mounting structure of the roof-mounted object according to the present invention is "installed on the roof via a pedestal above the sheet metal roof having a haze portion that is laid on the roof structure. It is a mounting structure of a rooftop installation object to which an object is attached, and the gantry has a base extending to the left and right, a pair of legs extending downward from both left and right ends of the base, and the base. It has a pair of arms extending upward from both left and right ends of the roof, and the base and the base from above in a state where the pair of legs are in contact with the sheet metal roof with the haze portion in between. It is attached to the structure by a screw screwed into the structure through the goby portion, and the rooftop installation object is supported on the upper part of the pair of the arm portions. "

Here, as the "structure" of the roof, rafters and field boards can be exemplified. Further, examples of the "installed object on the roof" include a solar cell module, a solar water heater, an outdoor unit of an air conditioner, and a crosspiece member that supports them.

By the way, in the conventional techniques such as Patent Document 1 and Patent Document 2, a screw is screwed into a roof structure in which a sheet metal roof is laid from above through a first member, a second member, and a thatched portion. It is conceivable to attach the first member and the second member to the structure. However, in this case, the following inconveniences occur.

More specifically, since the protruding height of the goby portion varies depending on the part of the building or roof, in the conventional technique, when the first member attached to the goby portion is covered with the second member from above, the second member is placed. The pair of legs are set longer so that the pair of legs of the two members always come into contact with the sheet metal roof. Therefore, depending on the protruding height of the goby portion, a gap may be formed between the first member and the second member in the vertical direction. Then, when a screw is screwed into the structure from above the second member in a state where a gap is formed between the first member and the second member, the second member is attached to the structure by the screw. However, the first member is not in a state of being attached to the structure only through the screw. In such a state, when a force for lifting the rooftop installation object acts due to a strong wind or the like, the rooftop installation object is attached to a bolt that penetrates the second member and protrudes upward from the first member. Therefore, the first member is lifted upward by the amount of the gap between the first member and the second member together with the roof portion via the bolt. As a result, when a force that tries to lift the object installed on the roof acts due to strong wind or the like, vibration is generated between the first member and the second member, and the vibration causes fatigue of the goby part. The metal roof may be damaged.

According to the present invention, a pedestal supporting an object to be installed on the roof is placed on the upper part of a pair of arms with a pair of legs in contact with the sheet metal roof, and the roof is covered with screws passing through the base and the goby. It is attached to the structure of. Therefore, even if there is a gap between the base and the goby due to the difference in the protruding height of the goby, the force to lift the roof installation object due to strong wind or the like is applied to the base and the screw. It can act on the structure through the above, and the mounting strength of the installation on the roof can be made higher than before.

In addition, since the pedestal on which the rooftop installation is attached is attached to the roof structure, the force to lift the rooftop installation due to strong winds does not act on the sheet metal roof, and the sheet metal roof does not. It is possible to prevent the peeling of the roof.

As described above, as an effect of the present invention, it is possible to provide a mounting structure for a rooftop installation that can increase the mounting strength of the rooftop installation for a sheet metal roof.

It is a front view which shows the mounting structure of the rooftop installation object which mounts the rooftop installation object to the sheet metal roof which is one Embodiment of this invention. (A) is a plan view of the gantry for the rooftop installation used in the mounting structure of FIG. 1, and (b) is a front view of the gantry for the rooftop installation. It is a perspective view of the pedestal for the installation on the roof. It is a perspective view which shows by omitting the thing installed on the roof in the state which disassembled the mounting structure of FIG.

The mounting structure of the rooftop installation object 1 and the gantry 10 for the rooftop installation object, which are one embodiment of the present invention, will be described in detail with reference to FIGS. 1 to 4. The mounting structure of the on-roof installation object 1 in the present embodiment will be described in detail later, but on the roof via the gantry 10 above the sheet metal roof 3 having the thatched portion 3a that is laid on the roof structure 2. The installation object 1 is attached. In the present embodiment, the rooftop installation object 1 is attached to the upper part of the gantry 10 by using the lower attachment 30 and the upper attachment 40.

First, as shown in FIGS. 2 and 3, the gantry 10 has a base portion 11 extending to the left and right, a pair of leg portions 12 extending downward from the left and right ends of the base portion 11, and both left and right ends of the base portion 11. It has a pair of arm portions 13 extending upward from the base 11 and a pair of guide portions 14 extending downward shorter than the pair of leg portions 12 at the center of the base 11 with a left-right spacing. There is.

Further, the gantry 10 extends inward in the left-right direction from the upper ends of the pair of foot portions 15 extending outward in the left-right direction from the lower ends of the pair of leg portions 12 and the upper ends of the pair of arm portions 13. A pair of palms 16 and a pair of protrusions 17 protruding downward from the middle of each of the pair of palms 16 in the left-right direction, and a pair of arms 13 in a portion below the upper end of each in the left-right direction. A pair of shelf portions 18 extending toward the direction, a V-shaped groove portion 19 which is open outward at a height portion between the base portion 11 and the shelf portion 18 in each of the pair of arm portions 13, and a V-shaped groove portion 19. have.

The gantry 10 has the base portion 11, the leg portion 12, the arm portion 13, the guide portion 14, the foot portion 15, the palm portion 16, the protrusion portion 17, the shelf portion 18, and the groove portion 19 in the front-rear direction (FIG. 2 (a). ), The lower part of the paper in the vertical direction is referred to as "front").

Further, the gantry 10 has a pair of a mounting hole 20 penetrating the base 11 at a portion between the pair of guide portions 14 and a stop portion 21 bulging hemispherically from the lower surfaces of each of the pair of palm portions 16. Each of the arm portions 13 has a holding hole 22 penetrating at a portion between the base portion 11 and the shelf portion 18.

The base portion 11 of the gantry 10 has a thick central portion in the left-right direction, and the left and right outer portions of the thick portion are bent diagonally upward. The pair of legs 12 extend diagonally so that they move away from each other toward the bottom. The pair of arms 13 extend diagonally so as to approach each other as they move upward. The pair of arms 13 are on the extension of each of the pair of legs 12.

After hanging from the base 11 in parallel, the pair of guide portions 14 are bent diagonally so as to move away from each other toward the lower end. The distance between the pair of guide portions 14 is the same as the width of the goby portion 3a of the sheet metal roof 3. The pair of foot portions 15 extend outward in the left-right direction from the lower ends of each of the pair of leg portions 12.

The distance between the tips of the pair of palm portions 16 is substantially the same as the width of the thick portion in the base portion 11. The pair of shelves 18 extend shorter than the palm portion 16 at a portion of the arm portion 13 below the protrusion portion 17.

Four mounting holes 20 are provided at intervals in the front-rear direction. The stop portion 21 is provided between the tip portion of the palm portion 16 and the protrusion portion 17 in the vicinity of the front end portion in the front-rear direction. The holding hole 22 is provided near the front end of the right arm portion 13 and near the rear end of the left arm portion 13 in front view.

The groove 19 and the holding hole 22 of the gantry 10 are used to hold a cable connected to the rooftop installation object 1 such as a solar cell module.

The gantry 10 is formed so that the height from the lower surface of the base 11 to the lower surface of the foot 15 is higher than the protruding height of the goby portion 3a of the sheet metal roof 3 to be attached.

The gantry 10 of the present embodiment is obtained by cutting an extruded metal material such as an aluminum alloy to a desired length, and pressing or cutting the mounting hole 20, the stop portion 21, and the holding hole 22. Further, the gantry 10 of the present embodiment has a length in the front-rear direction of 100 mm to 150 mm, a width in the left-right direction (distance between the tips of the pair of feet 15) of 75 mm to 115 mm, and a height of about 45 mm to 70 mm. be. In the present embodiment, a hemispherical recess formed when the stop portion 21 is pressed appears on the upper surface of the palm portion 16.

As shown in FIG. 4, the lower mounting tool 30 has a flat plate-shaped substrate portion 31 and a bolt portion 32 extending upward from the center of the substrate portion 31. The width of the substrate portion 31 is wider on the left and right sides than between the pair of shelf portions 18 on the gantry 10, and narrower than between the upper ends of the pair of arm portions 13. The upper surface of the substrate portion 31 has a pair of recesses 31a that penetrate in the front-rear direction and into which a pair of protrusions 17 of the gantry 10 are inserted.

In the lower mounting tool 30 of the present embodiment, the substrate portion 31 is made by cutting a metal extruded mold material such as an aluminum alloy to a desired length, and the bolt portion 32 is fixed to the substrate portion 31. The substrate portion 31 of the present embodiment has a length of 30 mm to 50 mm in the front-rear direction.

The upper mounting tool 40 is a quadrangular flat plate-shaped lower plate portion 41, a pair of side plate portions 42 extending upward from two sides of the lower plate portion 41, and a lower plate from the upper ends of each of the pair of side plate portions 42. It has an upper plate portion 43 extending outward in parallel with the portion (see FIG. 4). The upper mounting tool 40 has an insertion hole 44 through which the bolt portion 32 of the lower mounting tool 30 can pass through the center of the lower plate portion 41.

The upper mounting tool 40 of the present embodiment is obtained by cutting an extruded metal material such as an aluminum alloy to a desired length and processing an insertion hole 44.

Subsequently, a mounting method for mounting the rooftop installation object 1 above the sheet metal roof 3 using the above-mentioned mount 10, lower mounter 30, and upper mounter 40 will be described with reference to FIGS. 1 and 4. do. The sheet metal roof 3 is laid on the structure 2 with the waterproof sheet 6 in between, and has a goby portion 3a protruding upward. The goby portion 3a is a portion where the sheet metal roofs 3 that are adjacent to each other on the left and right are joined to each other. Examples of the structure 2 include field boards and rafters. Examples of the roof-mounted object 1 include a solar cell module, a solar water heater, an outdoor unit of an air conditioner, and a crosspiece member that supports them.

First, of both ends of the gantry 10 in the front-rear direction, the end faces close to the stop 21 are set to face the eaves direction. Then, the goby portion 3a is inserted between the pair of guide portions 14, and the pair of foot portions 15 are brought into contact with the upper surface of the sheet metal roof 3 with the goby portion 3a in between. As a result, the pair of leg portions 12 are in contact with the sheet metal roof 3 via the foot portions 15.

Next, using the mounting hole 20 penetrating the base 11 as a guide, a pilot hole having a size through which the screw portion of the screw 4 can pass is drilled in the goby portion 3a. This makes it possible to prevent the goby portion 3a from being crushed when the screw 4 is screwed into the structure 2. After that, the screw 4 is screwed into the structure 2 from above the base 11 through the mounting hole 20 and the pilot hole of the goby portion 3a, and the gantry 10 is mounted on the sheet metal roof. At this time, a waterproof material such as butyl rubber is applied to the screw portion of the screw 4. As a result, it is possible to prevent rainwater from entering the lower side of the sheet metal roof 3 and the structure 2 through the screw 4.

After mounting the gantry 10 on the roof, the lower mounting tool 30 is positioned on the ridge side of the gantry 10 so that the bolt portion 32 extends upward. Then, the lower mounting tool 30 is moved to the eaves side, and the left and right ends of the board portion 31 of the lower mounting tool 30 are inserted between the pair of palm portions 16 and the pair of shelf portions 18 in the pedestal 10, and the pedestal 10 is inserted. Position it near the center in the front-back direction. In this state, the bolt portion 32 of the lower mounting tool 30 projects upward from between the pair of palm portions 16 of the gantry 10. Further, since the pair of protrusions 17 of the gantry 10 are inserted into the pair of recesses 31a of the board portion 31, the lower mounting tool 30 rotates around the axis of the bolt portion 32 with respect to the gantry 10. It has been blocked.

Even if the lower mounting tool 30 slides toward the eaves due to the inclination of the roof, the substrate portion 31 comes into contact with the stop portion 21 protruding from the lower surface of the palm portion 16, so that further sliding is prevented. It will not fall off from the gantry 10.

Subsequently, the rooftop installation objects 1 are placed on the pair of palm portions 16 of the gantry 10 with the bolt portions 32 of the lower attachment 30 in between. Then, the bolt portion 32 is inserted into the insertion hole 44 of the lower plate portion 41 of the upper mounting tool 40, and the pair of upper plate portions 43 is brought into contact with the upper surface of the rooftop installation object 1. After that, the nut 5 is screwed and tightened to the bolt portion 32 protruding upward from the lower plate portion 41.

As a result, the upper plate portion 43 of the upper mounting tool 40 presses the rooftop installation object 1 against the palm portion 16 of the gantry 10, and the rooftop installation object 1 is attached to the gantry 10. That is, the gantry 10 is structured by the screw 4 screwed into the structure 2 from above through the base portion 11 and the brace portion 3a in a state where the pair of leg portions 12 are in contact with the sheet metal roof 3 with the brace portion 3a in between. A mounting structure is constructed in which the rooftop installation object 1 is mounted on the upper part of the pair of arm portions 13 while being mounted on the body 2.

As described above, according to the present embodiment, the height from the lower surface of the base 11 to the lower surface of the foot 15 in the gantry 10 is higher than the protruding height of the goby portion 3a, so that the protruding height of the goby portion 3a is set. Even if there are variations, when the gantry 10 is placed on the sheet metal roof 3, the pair of foot portions 15 abut on the upper surface of the sheet metal roof 3 before the base 11 abuts on the goby portion 3a. Become. As a result, even if the gantry 10 is attached to the roof structure 2 by the screw 4, the base portion 11 does not press the goby portion 3a, and the goby portion 3a can be prevented from being crushed.

Further, according to the present embodiment, the base portion 11 is in a state where the pedestal 10 to which the rooftop installation object 1 is attached to the upper part of the pair of arm portions 13 is brought into contact with the sheet metal roof 3 with the pair of leg portions 12. And, it is attached to the roof structure 2 by the screw 4 through the goby portion 3a. Therefore, even if there is a gap between the base portion 11 and the goby portion 3a due to the difference in the protruding height of the goby portion 3a, the force for lifting the rooftop installation object 1 due to a strong wind or the like is exerted. , It can act on the structure 2 via the base 11 and the screw 4, and the mounting strength of the rooftop installation object 1 can be made higher than before.

Further, since the gantry 10 to which the on-roof installation object 1 is attached is attached to the roof structure 2 by the screw 4 penetrating the goby portion 3a, there is a gap between the base portion 11 and the goby portion 3a. Even if it is formed, the force for lifting the rooftop installation object 1 due to strong wind or the like acts on the base 11 and does not act on the sheet metal roof 3, so that the peeling of the sheet metal roof 3 can be avoided.

Further, since the gantry 10 is attached by screwing the screw 4 through the raised goby portion 3a in the sheet metal roof 3, no hole for attachment is formed in the portion of the sheet metal roof 3 where rainwater flows. It can dispel anxiety about leaks.

Further, since the gantry 10 has a pair of guide portions 14, the pedestal 10 can be easily positioned by inserting the goby portion 3a between the pair of guide portions 14, and the workability at the time of mounting can be facilitated. Can be improved.

Further, since the gantry 10 has a pair of foot portions 15 extending to the left and right from the lower ends of each of the pair of leg portions 12, the contact area with respect to the sheet metal roof 3 can be widened by the foot portions 15. .. As a result, the weight of the rooftop installation object 1 can be dispersed and transmitted to the sheet metal roof 3 and the structure 2, so that the sheet metal roof 3 and the structure 2 are not dented by the weight of the rooftop installation object 1. The sheet metal roof 3 and the structure 2 can be made hard to be damaged. Therefore, even if the weight increases due to the accumulation of snow on the rooftop installation object 1, the state of being mounted on the roof can be sufficiently maintained.

By the way, in the conventional technology such as Patent Document 1 and Patent Document 2, there are two constituent members, the first member and the second member, which cover the attachment to the sheet metal roof 3 and the placement of the on-roof installation object 1. It is composed of. On the other hand, in the present embodiment, since the constituent member is composed of one gantry 10, the cost for the constituent member can be reduced as compared with the conventional case.

Further, in the conventional technique, since the bolt is extended upward from the first member attached to the goby part, when changing or adjusting the mounting position of the installation object on the roof, the goby part is once moved to the first member. It was necessary to remove one member. On the other hand, in the present embodiment, since the bolt portion 32 for attaching the rooftop installation object 1 to the gantry 10 is provided on the lower mounting tool 30, the gantry 10 does not need to be removed. The mounting position of the rooftop installation object 1 can be changed or adjusted simply by sliding the lower mounting tool 30, and the installation work of the rooftop installation object 1 is easy.

Although the present invention has been described above with reference to suitable embodiments, the present invention is not limited to the above embodiments, and various improvements and design changes can be made without departing from the gist of the present invention. Is. In the following, parts having the same configuration are designated by the same reference numerals, and detailed description thereof will be omitted.

For example, in the above embodiment, the gantry 10 has a pair of guide portions 14, but the present invention is not limited to this, and the gantry 10 having no guide portion 14 may be used.

1 Rooftop installation 2 Structure 3 Sheet metal roof 3a Haze part 4 Screw 5 Nut 10 Stand 11 Base part 12 Leg part 13 Arm part 14 Guide part 15 Foot part 16 Palm part 17 Protrusion part 18 Shelf part 19 Groove part 20 Mounting hole 21 Stop Part 30 Lower mounting tool 31 Board part 32 Bolt part 40 Upper mounting tool

Claims (1)

It is a mounting structure for rooftop installations, in which rooftop installations are mounted via a pedestal above a sheet metal roof with a goby thatched on the roof structure.
The gantry is
The base that extends to the left and right,
A pair of legs extending downward from the left and right ends of the base,
It has a pair of arms extending upward from the left and right ends of the base.
With the pair of legs in contact with the sheet metal roof with the goby portion in between.
It is characterized in that it is attached to the structure by screws screwed into the structure from above through the base portion and the goby portion, and the rooftop installation object is supported on the upper part of the pair of arm portions. The mounting structure of the rooftop installation.

Images