Solar panel installation roof structure, and jig for walking above solar panel

Abstract

To provide a structure that enables construction and maintenance of solar panels without erecting scaffolding outside of a building while eliminating a work passage from a flat roof and installing solar panels over almost the entire surface of the flat roof.SOLUTION: In a solar panel installation roof structure, a lifting space 12 of a size corresponding to one solar panel 3 is formed at one corner portion (a corner portion 11a) of a flat roof 2a. Solar panels 3 are laid out on the flat roof 2a excluding the lifting space 12, in rows 14a to 14c parallel to one of the sides (a side 13a) of the flat roof 2a. The flat roof 2a has a non-passage portion 18 with a width 17 less than a passage width 16 serving as a work passage 15 at the outside of the row 14c of solar panels 3 arranged adjacently to the position of the lifting space 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a solar panel installation roof structure and a solar panel upper walking jig. [Background technology]

[0002] 2. Description of the Related Art Solar panels are now being installed on the roofs of buildings such as houses (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-148171 A Summary of the Invention [Problem to be solved by the invention]

[0004] When installing solar panels on a roof, a work passage is provided on the roof for installation and maintenance of the solar panels. Therefore, it is not possible to install solar panels on the entire surface of the roof. On the other hand, if installation and maintenance of the solar panels are not particularly considered, it is possible to install solar panels on the entire surface of the roof, but in this case, it becomes necessary to set up scaffolding on the outside of the building when installing solar panels on the roof or performing maintenance and inspection.

[0005] Therefore, a main object of the present invention is to contribute to improving the above-mentioned problems. [Means for solving the problem]

[0006] In response to the above problems, the present invention provides: A lift space the size of a single solar panel is created in one corner of the flat roof. The solar panels are laid out in a row parallel to one side of the flat roof on the portion of the flat roof excluding the lifting space, The flat roof is characterized by a solar panel installation roof structure in which the outside of the row of solar panels arranged adjacent to the position of the lifting space is a non-passage section whose width is less than the aisle width serving as a work passage. Effect of the Invention

[0007] With the above-mentioned configuration, the present invention eliminates work passages from a flat roof, making it possible to install solar panels on almost the entire surface of the flat roof, while also making it possible to install and maintain the solar panels without setting up scaffolding on the outside of the building. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view of a solar panel installation roof structure according to an embodiment of the present invention. [Diagram 2] FIG. 1 is an overall perspective view of a solar panel upper walking jig used in a solar panel installation roof structure. [Diagram 3] These are part diagrams of the solar panel upper walking jig in Figure 2. Of these, (a) is a plan view, (b) is a side view, (c) is a bottom view, (d) is a right end view, and (e) is a left end view. [Figure 4] 1A is an enlarged side view of the hook portion of the upper walking jig for the solar panel, and FIG. 1B is an enlarged side view of the anti-slip portion. [Diagram 5] FIG. 2 is a perspective view showing the installation state of the solar panel upper walking jig on the solar panel. [Figure 6] 11(a) to 11(c) are side views showing a procedure for installing an upper walking jig for a solar panel on a solar panel. [Figure 7] 1 is an enlarged oblique view showing a state in which the hook portion of the solar panel upper walking jig is engaged with the edge portion of the solar panel. FIG. [Figure 8] 1(a) to 1(d) are plan views showing the procedure for installing a solar panel on a flat roof using the solar panel upper walking jig. [Figure 9] 13(a) and 13(b) are plan views showing the procedure for maintaining solar panels installed on a flat roof using a solar panel upper walking jig. [Figure 10]FIG. 2 is a plan view of a flat roof having an aisle space according to a comparative example. [Figure 11] (a) is a plan view of a comparative example of a flat roof having a vertical aisle space, and (b) is a side view of (a). [Figure 12] (a) is a plan view of a flat roof of a comparative example having a horizontal aisle space, and (b) is a side view of (a). [Figure 13] FIG. 1 is a partial side view of a building showing a comparative example in which scaffolding is provided for construction and maintenance inspection. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] This embodiment will be described in detail with reference to FIGS. EXAMPLES

[0010] <Configuration> The configuration of this embodiment is as follows.

[0011] As shown in FIG. 1, a solar panel 3 is installed on the roof 2 of a building 1 such as a detached house or an apartment building.

[0012] Here, the building 1 may be of any construction, such as wood, steel frame, or reinforced concrete. In this embodiment, the building 1 is a unit building. A unit building is a building 1 that can be constructed in a short period of time by transporting building units 4 manufactured in advance in a factory to a construction site and assembling them at the construction site.

[0013] The roof 2 is provided on the upper part of the building 1 and protects the building 1 from sunlight, wind and rain. The roof 2 may have various shapes, such as a gable roof, a hip roof, or a shed roof. The roof 2 will be described later.

[0014] In the case of a modular building, for example, roof panels can be attached individually to the top surface of the top-floor building unit 4 in advance at a factory. As a result, when the top-floor building unit 4 is installed at the construction site, the roof panels are lined up on top of the building 1, forming the prototype of the roof 2. The roof panels on top of the building 1 are then integrated by being connected and sealed to each other, etc., to form the completed roof 2. Also, for example, roof units may be manufactured separately from the building units 4 in a factory, and after installation of the building units 4 is completed at the construction site, the roof 2 may be formed by installing the roof units on top of the top-floor building unit 4.

[0015] As an example, the unit building in FIG. 1 is a structure in which a plurality of (e.g., three) building units 4 with roof panels attached are arranged in the direction of the short sides of the building units 4. The plurality of building units 4 are installed with the short sides aligned. That is, the plurality of building units 4 are installed without any misalignment between the short sides with respect to the direction of the long sides of the building units 4. As a result, the building 1 and the roof 2 are substantially rectangular in plan view, with the direction of the short sides of the building units 4 being the direction of the long sides of the building 1, and the direction of the long sides of the building units 4 being the direction of the short sides of the building 1. However, the number and arrangement of the building units 4 are not limited to the above. For example, in FIG. 8, the three building units 4 in FIG. 1 are arranged in the direction of the long sides of the building units 4 to form a configuration of six building units 4.

[0016] Then, the roof 2 of such a building 1 is structured as follows.

[0017] (1) The solar panel installation roof structure according to this embodiment is as follows: As shown in FIG. 1, a lifting space 12 having a size equivalent to that of one solar panel 3 is formed at one of the corners 11a to 11d of a flat roof 2a. Solar panels 3 are laid out on the flat roof 2a, excluding the climbing space 12, in rows 14a to 14c parallel to one of the sides 13a to 13d of the flat roof 2a. The flat roof 2a has a non-passage section 18 with a width 17 less than the passage width 16 (Figure 10) that serves as a work passage 15 (Figure 10) on the outside of the row 14c of solar panels 3 that are installed adjacent to the lift space 12.

[0018] Here, the solar panel installation roof structure is the structure of the roof 2 on which the solar panels 3 are installed or will be installed.

[0019] The flat roof 2a is one of various types of roof 2 shapes, and is a nearly horizontal and flat roof 2. In this embodiment, the roof 2 is a flat roof 2a. The flat roof 2a may have a drainage slope as long as it is at a slight angle. The flat roof 2a may be formed using a metal plate having irregularities such as a corrugated plate. In the case of a unit building, the planar shape of the flat roof 2a is not the shape of the top surface of an individual building unit 4, but the overall shape of the building 1 formed by combining multiple building units 4. For example, the flat roof 2a of the unit building in the figure has a rectangular planar shape.

[0020] The corner portions 11a to 11d are corners of the flat roof 2a. For example, in the case of a flat roof 2a having a rectangular shape in plan view, the flat roof 2a has first to fourth four sides 13a to 13d and first to fourth four corner portions 11a to 11d. The lifting and descending space 12 may be provided in any of the four corner portions 11a to 11d. In this embodiment, the lifting and descending space 12 is provided at the position of the corner portion 11a. In the case of a flat roof 2a having a shape other than a rectangular shape in plan view, the number of corner portions may be four or more, but any corner portion may be provided. The lifting and descending space 12 is preferably provided in a corner portion on the south side where a balcony is located, for example.

[0021] The solar panel 3 is a panel-shaped power generating device that generates electricity using sunlight. The solar panel 3 is substantially rectangular in plan view and is installed on the flat roof 2a at an incline with respect to the horizontal so as to efficiently receive sunlight. The solar panel 3 is installed at an incline such that, for example, the south side is lower (below water side) and the north side is higher (above water side).

[0022] The solar panel 3, which is substantially rectangular in plan view, has a pair of parallel sides 3a and a pair of parallel sides 3b. In the figure, the side 3a is the short side of the solar panel 3, and the side 3b is the long side of the solar panel 3, but the opposite is also possible. Basically, the sides 13a to 13d of the flat roof 2a and the sides 3a, 3b (FIG. 5) of the solar panel 3 are installed so that they face in the same direction. In the case of a unit building, the solar panel 3 can be installed, for example, on a roof panel that is attached in advance to the top surface of the building unit 4 on the top floor at a factory. It is also possible to install additional solar panels 3 on the existing roof 2 of the building 1 at the construction site.

[0023] The lifting and descending space 12 is an approximately minimum amount of space secured for a worker M (FIG. 6) to ascend and descend to the flat roof 2a for work, and is left on the flat roof 2a as an empty space without installing a solar panel 3. The lifting and descending space 12 is made large enough to install at least one solar panel 3 so that the worker M can work stably while standing. The lifting and descending space 12 is provided in the same orientation as the solar panel 3. The lifting and descending space 12 is larger by the width 17 of a non-passage portion 18 that is formed on the outside of a row 14c of solar panels 3 that is provided adjacent to the position of the lifting and descending space 12.

[0024] The portion excluding the lift space 12 is the entire portion of the flat roof 2a other than the lift space 12, and the solar panel 3 is installed in this portion.

[0025] When installing solar panels 3 in a portion of flat roof 2a excluding lift-up space 12, for example, a long and narrow non-passage portion 22a may be provided as necessary between side 13c of flat roof 2a and first installed row 14a of solar panels 3. Also, a long and narrow non-passage portion 22b may be provided as necessary between rows 14a to 14c of solar panels 3. The long and narrow non-passage portions 22a, 22b have widths 21a, 21b of less than 450 mm.

[0026] Similarly, elongated non-passage portions 22c, 22d with widths 21c, 21d of less than 450 mm may be provided between edges 13b, 13d of the flat roof 2a and the first and last solar panels 3 constituting rows 14a-14c, and between the solar panels 3 constituting rows 14a-14c.

[0027] The non-passage sections 22a-22d may occur when the size of the flat roof 2a is not divisible by the size of the solar panels 3. The non-passage sections 22a-22d preferably have small widths 21a-21d (impossible-to-walk widths) that are difficult or impossible for the worker M to walk through even if he or she tries too hard. This allows the solar panels 3 to be installed to the maximum extent possible in the portions of the flat roof 2a excluding the climbing and descending spaces 12.

[0028] One of the sides 13a to 13d of the flat roof 2a may be either the vertical side 13a, 13c or the horizontal side 13b, 13d of the flat roof 2a. In this embodiment, one of the sides 13a to 13d is the vertical side 13a. Note that the vertical sides 13a, 13c and the horizontal sides 13b, 13d are relative, and in FIG. 1, for the sake of convenience, the sides extending up and down in the figure are the vertical sides 13a, 13c, and the sides extending left and right in the figure are the horizontal sides 13b, 13d.

[0029] The rows 14a to 14c of the solar panels 3 are linear rows of the solar panels 3 installed on the flat roof 2a. In the figure, the solar panels 3 are arranged to form a plurality of rows 14a to 14c along the side 13a or 13c, and a plurality of rows 14a to 14c along the side 13b or 13d. The rows 14a to 14c of the solar panels 3 are installed from the side 13c to the side 13a. Therefore, the direction along the vertical sides 13a and 13c is the row direction 23 of the solar panels 3, and the direction along the horizontal sides 13b and 13d is the installation direction 24 of the solar panels 3.

[0030] "Paving the solar panels 3 all over" means installing the solar panels 3 so as to completely fill the flat roof 2a, and the solar panels 3 are regularly arranged vertically and horizontally on the flat roof 2a. In this case, as described above, even if there are non-passage sections 22a-22d between the flat roof 2a and the solar panels 3, or between adjacent solar panels 3, it is permissible as long as the non-passage sections 22a-22d have widths 21a-21d that are less than the passage width 16. The widths 21a-21d of the non-passage sections 22a-22d may be the same or different from each other, but the lower limit for each is 0 mm.

[0031] The row 14c of solar panels 3 installed next to the lift-up space 12 is a row 14c of solar panels 3 along the vertical side 13a starting from the position next to the lift-up space 12. This row 14c has one less solar panel 3 than the other rows 14a and 14b because of the lift-up space 12. The row 14c of solar panels 3 installed next to the lift-up space 12 is the last row (last row) to be installed on the flat roof 2a. Note that in the figure, the last row is row 14c, but the last row is a relative number that changes depending on the size of the flat roof 2a. For example, in FIG. 8, the last row is row 14d.

[0032] The outside is the direction toward the outside of the flat roof 2a, and the outside of the rows 14a to 14c is the portion downstream of the solar panels 3 that form the last row (row 14c) in the installation direction 24 of the solar panels 3. Alternatively, the outside of the rows 14a to 14c is the elongated portion along the row 14c that is located between the solar panels 3 that form the last row (row 14c) and the side 13a of the flat roof 2a that is closest to this row 14c.

[0033] The work passage 15 is a narrow passage space formed on the flat roof 2a along one of the sides 13a to 13d of the flat roof 2a, as shown in the comparative example of FIG. 10 (to FIG. 12). The work passage 15 has a width 17 at least sufficient for a worker M to walk normally, and extends the same length as one of the sides 13a to 13d of the flat roof 2a. Depending on the manner and orientation of the solar panel 3 on the flat roof 2a, the work passage 15 can be provided along the vertical side 13a of the flat roof 2a, as shown in the comparative example of FIG. 11, or along the horizontal side 13b of the flat roof 2a, as shown in the comparative example of FIG. 12. In addition to the work passage 15, in FIG. 12, an empty space 25 of the same width as or greater than the work passage 15 is formed along the (vertical) side 13a of the flat roof 2a. For example, a solar panel 3 may be added later to this empty space 25.

[0034] In Fig. 10, the above-mentioned working passage 15 is provided on the outside of the short side 3a of the solar panel 3 constituting the last row (row 14b). Depending on the size and shape of the flat roof 2a, the number of rows of the solar panels 3 is two in Fig. 10, four vertical rows in Fig. 11, and four horizontal rows in Fig. 12. However, the number and orientation of the rows of the solar panels 3 are not limited to this.

[0035] Furthermore, in Fig. 11 and Fig. 12, the use of a solar panel upper walking jig 31 as described later is not assumed. In this case, an auxiliary passage 26 extending from the work passage 15 is required between the solar panels 3 constituting each row 14a to 14d. The auxiliary passage 26 preferably has a passage width 16 of, for example, 450 mm or more, but even if it is less than 450 mm, it is sufficient as long as it is equal to or greater than the width (walkable width) that the worker M can barely walk on if he or she tries. There is no clear boundary between the walkable width and the above-mentioned non-walkable width, but the walkable width is generally determined as a width equal to or greater than the sum of the left and right foot widths, and the non-walkable width is determined as a width less than the sum of the left and right foot widths. The non-walkable width is a width that is barely large enough to place one foot on.

[0036] In contrast, the solar panel installation roof structure of this embodiment does not require the provision of an auxiliary passage 26 that is wider than the walkable width, since it uses the solar panel upper walking jig 31. However, even in this embodiment, it is possible to provide an auxiliary passage 26 that is wider than the walkable width.

[0037] The passage width 16 of the work passage 15 is a width that allows a person to pass through normally with ease, and is set to, for example, 450 mm or more. 450 mm is determined based on, for example, the shoulder width of an average person. 450 mm is also used as the standard width for indoor corridors.

[0038] The non-passage portion 18 is a long and narrow space with a width 17 small enough not to become a work passage 15, which is left on the flat roof 2a between the outside of the solar panel 3 that is the final row (for example, row 14c) and the adjacent sides 13a to 13d of the flat roof 2a. The non-passage portion 18 may be a walkable width as described above, or a non-walkable width. Also, for example, if the size of the flat roof 2a is divisible by the size of the solar panel 3 without leaving a remainder, the non-passage portion 18 may be almost non-existent. The width 17 of the non-passage portion 18 is less than 450 mm, with a lower limit of 0 mm (a state in which there is no non-passage portion 18).

[0039] In the case of the solar panel installation roof structure described above, when installing the solar panels 3 on the flat roof 2a or when inspecting the solar panels 3 installed on the flat roof 2a, the following solar panel upper walking jig 31 is used. The solar panel upper walking jig 31 will be described below.

[0040] (2) The solar panel upper walking jig 31 is, as shown in FIG. 2 (to FIG. 4), A jig body 33 having a length 32 corresponding to one of the sides 3a, 3b of the solar panel 3; A plate-shaped buffer member 36 is provided on the back surface 33b of both ends 33c of the jig body 33 in the longitudinal direction 34, and extends over the entire area of ​​the jig body 33 in the width direction 35; The jig body 33 has a hook portion 37 provided at one end portion 33 c in the longitudinal direction 34 , which can be engaged with the sides 3 a and 3 b of the solar panel 3 . The jig body 33 may have an anti-slip surface 38 on its upper surface 33a.

[0041] Here, the solar panel upper walking jig 31 is an auxiliary tool for enabling the worker M to walk steadily above the solar panel 3 installed on the flat roof 2a. The solar panel upper walking jig 31 is primarily used in the case of a flat roof 2a having the above-mentioned climbing space 12, but can also be used for a flat roof 2a provided with a work passage 15 as shown in Figs. 10 to 12.

[0042] One of the sides 3a, 3b of the solar panel 3 may be either the vertical side 3a or the horizontal side 3b of the solar panel 3 which is substantially rectangular in plan view. However, it is preferable that one of the sides 3a, 3b is the side 3a, 3b (side 3a in FIG. 5) extending in the row direction 23 of the solar panel 3 installed on the flat roof 2a.

[0043] 5, the corresponding length 32 is either the exact same length 32 (as the sides 3a, 3b of the solar panel 3) or approximately the same length 32. The approximately same length 32 is not the exact same length, but is a length 32 that can be regarded as the same for practical purposes, and may be slightly longer or shorter as long as the length is such that the jig body 33 can be substantially spanned in a direction along one of the sides 3a, 3b of the solar panel 3.

[0044] The jig body 33 is the main part that forms the main body of the solar panel upper walking jig 31, and is installed on the solar panel 3. The jig body 33 is, for example, a long and narrow stepping board. The jig body 33 has a width that allows the worker M to walk on it steadily. The jig body 33 is placed at a position that is approximately the center of one of the sides 3a, 3b (side 3b in FIG. 5) of the solar panel 3, in a direction along another side 3a, 3b (side 3a in FIG. 5) that is perpendicular to the side 3a, 3b.

[0045] The jig body 33 is formed, for example, from a metal plate material, and has an upper surface 33a and a peripheral portion of approximately uniform width surrounding the periphery of the upper surface 33a. The peripheral portion of the jig body 33 is composed of a pair of end plates extending from both ends 33c in the longitudinal direction 34 toward the back surface side, and a pair of side plates extending from both side portions 33d in the width direction 35 toward the back surface side. The side plates may be provided with an inwardly bent portion 33e for reinforcing at the lower edge portion. The end plates and the side plates may be formed of the same material as the upper surface 33a, or may be formed of different materials.

[0046] The longitudinal direction 34 is the direction in which the jig body 33 extends among the plane directions of the elongated step-shaped jig body 33. Both end portions 33c in the longitudinal direction 34 are portions located on both sides of the long sides of the elongated jig body 33.

[0047] The back surface 33b of the jig body 33 is the surface that becomes the lower side of the jig body 33 when it is installed on the solar panel 3. The back surface 33b is an opening surface surrounded by the lower edge portions of a pair of end plates and a pair of side plates that form the periphery of the jig body 33, or a surface opposite to the top surface 33a of the jig body 33 that faces this opening surface.

[0048] A single or multiple connecting plates 39 that connect the lower edges of a pair of side plates forming a peripheral portion in the width direction 35 are provided on at least both ends 33c and the center of the opening surface that is the back surface 33b of the jig body 33 in the longitudinal direction 34. As a result, the back surface 33b of the jig body 33 is partially closed by the connecting plates 39 to form a closed cross section. In addition, a reinforcing beam 40 extending in the longitudinal direction 34 may be provided in the center of the width direction 35 of the back surface 33b of the jig body 33 as necessary.

[0049] The width direction 35 is a plane direction of the elongated step-shaped jig body 33 that is perpendicular to the longitudinal direction 34. The entire area of ​​the width direction 35 is the entire area of ​​the jig body 33 in the width direction 35. The jig body 33 has a substantially uniform width over its entire length.

[0050] The plate-shaped buffer member 36 is a member that protects the solar panel 3 from a load acting on the solar panel 3 due to the weight of the worker M when the worker M stands on the solar panel upper walking jig 31 placed on the surface of the solar panel 3. The plate-shaped buffer member 36 is provided at the positions of both ends 33c of the jig body 33, and is in surface contact with the solar panel 3 while raising the middle part of the jig body 33 in the longitudinal direction 34 above the solar panel 3.

[0051] The plate-shaped buffer member 36 is a surface member having the same dimension in the width direction 35 as the jig body 33 and a required length dimension in the longitudinal direction 34. The plate-shaped buffer member 36 is formed of, for example, a thick rubber plate so as not to damage the solar panel 3 even if a load is applied to the plate-shaped buffer member 3 by direct surface contact with the solar panel 3. The plate-shaped buffer member 36 may be made of EPDM (ethylene propylene diene rubber) having high impact resistance. The plate-shaped buffer member 36 is attached from below to the connecting plate 39 provided at both ends 33c by a fixing device 41 such as a screw (FIG. 4(a)), for example, using the connecting plate 39 provided at both ends 33c as an attachment portion. The connecting plate 39 is formed to the same size as the plate-shaped buffer member 36 and supports the entire surface of the attached plate-shaped buffer member 36 from above. The fixing device 41 such as a screw is a flat-headed countersunk screw, and is embedded to a certain depth inside the plate-shaped buffer member 36 so that the head does not directly contact the solar panel 3.

[0052] One end portion 33c is a portion on the side where the hook portion 37 is provided with respect to the jig body 33. The hook portion 37 is not provided on the other end portion 33c in the longitudinal direction .

[0053] The sides 3a, 3b of the solar panel 3 are edge portions of the solar panel 3, to which the hook portion 37 is hooked, as shown in Fig. 6 and Fig. 7. The edge portion to which the hook portion 37 is hooked is preferably the above-water side 3a, 3b of the solar panel 3. The above-water side is the higher side of the solar panel 3 that is installed at an angle. In Fig. 5, the sides 3a, 3b are the upper side 3b, but depending on the installation state of the solar panel 3, they may be the side 3a.

[0054] The hook portion 37 is provided at one end 33c of the jig body 33 which is installed on the solar panel 3, and is a part which is hooked onto the sides 3a, 3b of the solar panel 3, and is integrally attached to the jig body 33 from the side using a fastener 42 such as a screw.

[0055] The hook portion 37 is an L-shaped portion in a side view, having a side engaging portion 37a that engages with a side surface of an edge portion of the solar panel 3, and a back engaging portion 37b that engages with the back surface of the solar panel 3. The side engaging portion 37a has a length that is approximately the sum of the length of the thickness of one end portion 33c of the jig body 33 and the plate-shaped buffer member 36, etc., and the length of the thickness of the solar panel 3, or longer, and extends downward from the one end portion 33c. The back engaging portion 37b extends parallel to the jig body 33 from the lower end portion of the side engaging portion 37a toward the other end portion 33c.

[0056] The hook portion 37 is provided in two separate locations on both sides of the width direction 35 of the jig body 33. A cushioning material 43 such as a rubber sheet may be attached to the inner portion of the hook portion 37 that comes into contact with the solar panel 3, or to the outer side thereof. The cushioning material 43 may be made of EPDM (ethylene propylene diene rubber), which has high impact resistance. The cushioning material 43 is provided on one or both of the side engaging portion 37a and the back engaging portion 37b of the hook portion 37, as appropriate.

[0057] The upper surface 33a is the surface that becomes the upper side of the jig body 33 when the jig body 33 is installed on the solar panel 3, and is the portion on which the worker M directly stands.

[0058] The anti-slip surface 38 may be any shape, structure, or member for preventing the feet of the worker M standing on the upper surface 33a of the jig body 33 from slipping. For example, as shown in the figure, the anti-slip surface 38 may be provided with multiple low protrusions that protrude upward, painted with paint containing fine aggregates (anti-slip paint), pasted with anti-slip tape, pasted or painted with anti-slip material such as rubber with a high friction coefficient, etc.

[0059] For example, the low protrusions serving as anti-slip devices 38 may be in the shape of a truncated cone with an open top. The truncated cone-shaped low protrusions may be arranged, for example, in a zigzag pattern along the longitudinal direction 34 and in two rows in the width direction 35 so as to be almost evenly distributed over the entire area of ​​the upper surface 33a of the jig body 33. Each row of low protrusions is arranged so as not to overlap each other in the longitudinal direction 34 and the width direction 35 on the upper surface 33a of the jig body 33. The number of rows of low protrusions may be one row or three or more rows.

[0060] Specifically, the solar panel upper walking jig 31 is made of, for example, a metal plate with a thickness of 5 mm, and the jig body 33 has a width of 240 mm, a length of 1043 mm, and a thickness (or a width of the peripheral portion) of 32 mm. The width of the jig body 33 is set to a dimension that allows the worker M to stand stably in any direction, taking into consideration both the sum of the left and right foot widths and the length of the feet. That is, the foot width of a human is approximately 100 mm to 150 mm (the sum of the left and right foot widths is approximately 200 mm to 300 mm), and the foot length is approximately 200 mm to 300 mm. Therefore, the width of the jig body 33 can be set within this range. In this embodiment, the width of the jig body 33 is set to 240 mm in consideration of lightness and ease of handling, but is not limited to this.

[0061] The plate-shaped cushioning member 36 has, for example, a width (dimension in the width direction 35 of the jig body 33) of 240 mm, a length (dimension in the longitudinal direction 34 of the jig body 33) of 100 mm, and a thickness of 10 mm. The hook portion 37 has, for example, a width of 50 mm, a length of the side engaging portion 37a of 90 mm, and a length of the back engaging portion 37b of 35 mm. The side engaging portion 37a has a downward protruding portion with a length equal to the thickness of the solar panel 3, and the downward protruding portion has a length of approximately 35 mm.

[0062] The low protrusions serving as anti-slip surfaces 38 on the upper surface 33a of the jig body 33 are, for example, 2 mm high, 32Φ in diameter, 16Φ in diameter at the top opening, and 14° in angle. The low protrusions are high enough that the feet of the worker M do not get caught on them, yet can be felt by the soles of the feet. The low protrusions are positioned and sized so that they can rest on the feet no matter where the feet are placed on the jig body 33. However, the various dimensions of the solar panel upper walking jig 31 as described above are merely examples, and are not limited to those described above.

[0063] <Function> The function of this embodiment is as follows.

[0064] The method of installing the solar panel 3 on the flat roof 2a having the above-mentioned configuration (solar panel installation method) may be performed as follows.

[0065] First, as shown in FIG. 8(a), a lifting space 12 large enough for one solar panel 3 is formed and secured at one of the corners 11a to 11d (for example, corner 11a) of a flat roof 2a.

[0066] Then, except for a long and narrow area 51 (the area where the final row is to be installed) along one of the sides 13a to 13d (for example, side 13a) where the climbing space 12 of the flat roof 2a is located, the solar panels 3 are laid out to form rows 14a to 14c parallel to the sides 13a to 13d.

[0067] Thereafter, as shown in Figs. 8(b) to (d) in order, the solar panel upper walking jig 31 is installed on the solar panels 3 that form the rows 14a to 14c (for example, row 14c) adjacent to the elongated region 51 (Fig. 6(a)). Then, the solar panel 3 is placed on the solar panel upper walking jig 31 (Fig. 6(b)) at a position adjacent to the solar panel upper walking jig 31 in the elongated region 51. These operations are repeated from the side farthest from the lift-up and lowering space 12 (Fig. 8(b)) toward the lift-up and lowering space 12 while moving the solar panel upper walking jig 31 along the elongated region 51 (Fig. 8(c)) until only the lift-up and lowering space 12 remains (Fig. 8(d)).

[0068] During the process, the solar panel upper walking jig 31 is removed from the solar panel 3 at the position where it was used (FIG. 6(c)), and is replaced with the next solar panel 3 (FIG. 6(a)). Note that the solar panel upper walking jig 31 may be used by replacing one panel at a time, or multiple panels may be used at the same time as necessary.

[0069] The elongated area 51 is arranged so that after the final row (row 14d) of solar panels 3 is installed, a non-passage portion 18 with a width 17 less than the passage width 16 (Figure 10) that will become the working passage 15 (Figure 10) remains on the outside.

[0070] 8(b), the worker M sets up the solar panel upper walking jig 31 on the adjacent solar panel 3 from position m0, and stands on the solar panel upper walking jig 31. Then, the worker M sets up the solar panel 3 at position m0 from above the solar panel upper walking jig 31, and descends to position m1 in the elongated area 51 to remove the solar panel upper walking jig 31 from the solar panel 3.

[0071] 8(c), worker M sets up the solar panel upper walking jig 31 on the adjacent solar panel 3 from position m1 and stands on the solar panel upper walking jig 31. Then, worker M sets up the solar panel 3 at position m1 from above the solar panel upper walking jig 31, and descends to position m2 in the elongated area 51 to remove the solar panel upper walking jig 31 from the solar panel 3.

[0072] 8(d), worker M sets up the solar panel upper walking jig 31 on the adjacent solar panel 3 from position m4 and stands on top of the solar panel upper walking jig 31. Then, worker M sets up the solar panel 3 at position m4 from above the solar panel upper walking jig 31, descends to position m5 (the position of the lift space 12) of the elongated area 51, and removes the solar panel upper walking jig 31 from the solar panel 3.

[0073] This allows the solar panels 3 to be installed on almost the entire surface of the flat roof 2a excluding the climbing space 12, without providing a work passage 15. The solar panels 3 in the last row (row 14d) can be installed using only one solar panel upper walking jig 31 by using the elongated area 51.

[0074] The inspection method for the flat roof 2a having the above configuration (the method for inspecting a roof on which a solar panel is installed) may be performed as follows.

[0075] As described above, the flat roof 2a has a lifting space 12 the size of one solar panel 3 at one of the corners 11a to 11d (for example, corner 11a). On the flat roof 2a, the outside of the row 14d of the solar panels 3 along the sides 13a to 13d (for example, side 13a) where the lifting space 12 is located is a non-passage section 18 with a width 17 less than the passage width 16 (FIG. 10) that serves as the work passage 15 (FIG. 10). On the flat roof 2a, the solar panels 3 are laid out so as to form the rows 14a to 14d parallel to the sides 13a to 13d (for example, side 13a).

[0076] For such a flat roof 2a, as shown in FIG. 9(a), a solar panel upper walking jig 31 is installed on the solar panels 3 that form the rows 14a to 14c (for example, row 14c) adjacent to the lifting space 12 (FIG. 6(a)). Then, the solar panel upper walking jig 31 is climbed on (FIG. 6(b)), and the solar panel 3 adjacent to the solar panel 3 on which the solar panel upper walking jig 31 is installed and the wiring section 52 between the solar panels 3 are inspected. These operations are performed while moving the solar panel upper walking jig 31 along the row 14c in order from the side closest to the lifting space 12 to the side furthest from the lifting space 12, as shown in FIG. 9(b). In the middle, the solar panel upper walking jig 31 is removed from the solar panel 3 at the position where it was used (FIG. 6(c)), and is replaced with the next solar panel 3. The solar panel upper walking jig 31 may be used by replacing one by one, or multiple solar panels may be used at the same time as necessary.

[0077] More specifically, as shown in Fig. 9(a), the worker M sets up the solar panel upper walking jig 31 on the solar panel 3 (the first or second solar panel 3 from the bottom) in the adjacent row 14c from position ma in the lift space 12. Then, the worker M stands on the solar panel upper walking jig 31 and inspects the solar panels 3 and wiring parts 52 on both sides from above the solar panel upper walking jig 31.

[0078] Next, as shown in Fig. 9(b), worker M moves the solar panel upper walking jig 31 from position mb where the solar panel 3 where it was installed is located to the next solar panel 3 (the third from the bottom). Then, worker M stands on top of the solar panel upper walking jig 31 and inspects the solar panels 3 and wiring parts 52 on both sides from above the solar panel upper walking jig 31. This work is carried out in sequence up to the last or second to last solar panel 3 in row 14c. If necessary, the above work is further carried out for the solar panels 3 in the adjacent row 14b, moving in the opposite direction.

[0079] This makes it possible to perform maintenance on the solar panels 3 and wiring parts 52 without the need for a work passage 15, and without the need for setting up scaffolding 53 on the outside of the building 1 as shown in FIG.

[0080] <Effects> The effects of this embodiment are as follows.

[0081] (Effect 1) The solar panel installation roof structure secures a lift-up space 12 for one solar panel 3 on the flat roof 2a, and the solar panels 3 are laid out on the remaining part. This makes it possible to eliminate the need for a wide work passage 15 for installing and maintaining the solar panels 3 and flat roof 2a, as shown in Figures 11 and 12, from the flat roof 2a. This makes it possible to realize a structure in which solar panels 3 can be installed on almost the entire surface of the flat roof 2a, excluding the lift-up space 12 on the flat roof 2a.

[0082] Also, by providing a lifting space 12 the size of one solar panel 3 at one of the corners 11a to 11d of the flat roof 2a, the solar panel upper walking jig 31 can be installed on the solar panel 3 using the lifting space 12. This makes it possible to safely carry out construction and maintenance of the solar panels 3 and maintenance of the flat roof 2a without setting up scaffolding 53 as shown in FIG. 13 on the outside of the building 1. This reduces the effort and cost of setting up the scaffolding 53 for construction and maintenance, and also shortens the construction period because there is no need to set up and dismantle the scaffolding 53.

[0083] (Effect 2) The solar panel upper walking jig 31 is used by installing the jig body 33 on the solar panel 3. At this time, as shown in Fig. 6(a), the jig body 33 is directly held to the solar panel 3 by the hook portion 37 by engaging the hook portion 37 provided on one end portion 33c with the side portions 3a and 3b of the solar panel 3, for example, the side and back surface of the side portion 3b on the above-water side. This makes it possible to install the solar panel upper walking jig 31 directly on the solar panel 3 without providing a dedicated mounting bracket for the solar panel upper walking jig 31 on the solar panel 3 side.

[0084] In addition, versatility is achieved by directly engaging the hook portion 37 with the solar panel 3. Therefore, the solar panel upper walking jig 31 can be used not only for flat roofs 2a having the climbing space 12 as described above, but also for flat roofs 2a having a working passage 15 as shown in Figs. 10 to 12.

[0085] The plate-shaped cushioning members 36 provided on the rear surfaces 33b at both ends of the jig body 33 are in surface contact with the solar panel 3. As a result, the plate-shaped cushioning members 36 protect the solar panel 3 and prevent the solar panel 3 from being damaged.

[0086] At this time, the jig body 33 is at approximately the same angle as the inclined solar panel 3, so that the worker M can get on the solar panel 3 provided on the flat roof 2a via the jig body 33, as shown in FIG. 6(b). When the worker M gets on the jig body 33 of the solar panel upper walking jig 31, the load due to the worker M's weight is distributed to both ends 33c in the longitudinal direction 34 of the jig body 33, and is transmitted to the solar panel 3 from the plate-shaped buffer members 36 at both ends 33c. Since the plate-shaped buffer members 36 have a wide surface that extends over the entire width direction 35 of the jig body 33, the distributed load is dispersed over the entire surface that each plate-shaped buffer member 36 is in contact with. Therefore, the load per unit area acting on the solar panel 3 can be small. As a result, the solar panel upper walking jig 31 becomes a jig that allows the worker M to walk on the solar panel 3 while ensuring the quality and safety of the solar panel 3.

[0087] Such a solar panel upper walking jig 31, which allows walking on the solar panel 3, can be easily attached to and detached from the solar panel 3 by the hook portion 37 at one end 33c. That is, it can be easily removed from the solar panel 3 by simply getting off the solar panel upper walking jig 31 and disconnecting the hook portion 37 as shown in FIG. 6(c).

[0088] Such attachment and detachment of the solar panel upper walking jig 31 to the solar panels 3 can be performed for all the solar panels 3 on the flat roof 2a as long as there is a lifting space 12 on the flat roof 2a for one solar panel 3. In this case, for example, the operations of Figures 6(a) to (c) may be repeated using the non-passage sections 22a to 22d between the solar panels 3. Also, in cases where the non-passage sections 22a to 22d are too narrow to be used, multiple solar panel upper walking jigs 31 may be used simultaneously.

[0089] In this way, by using the solar panel upper walking jig 31, it is possible to realize a configuration in which the solar panels 3 are laid out over almost the entire surface of the flat roof 2a, leaving the climbing and descending space 12. Also, by installing the solar panel upper walking jig 31 on the solar panels 3 using the climbing and descending space 12, it is possible to carry out the construction and maintenance of the solar panels 3 without providing a work passage 15 on the flat roof 2a and without providing scaffolding 53 on the outside of the building 1. Moreover, the solar panel upper walking jig 31 can also be used on roofs 2 other than the flat roof 2a, which is configured to have the solar panels 3 laid out over almost the entire surface, leaving the climbing and descending space 12. [Explanation of symbols]

[0090] 2. Roof 2a Flat roof 3. Solar panels 3a Edge 3b Edge 11a Corner section 12 Lifting space Area 13a Row 14a Column 14b 14c row 15 Work passage 16 aisle width 17 Width 18 Non-passage area 31 Solar panel upper walking fixture 33 Jig body 33a Top side 33b back side 33c end 34 Longitudinal 35 Width direction 36 Plate-shaped cushioning material 37 Hook part 38 Anti-slip

Claims

1. A lift space the size of a single solar panel is created in one corner of the flat roof. The solar panels are laid out in a row parallel to one side of the flat roof on a portion of the flat roof excluding the lifting space, The flat roof is a roof structure for installing solar panels, characterized in that the outside of the row of solar panels installed adjacent to the position of the lifting space is a non-passage section whose width is less than the aisle width serving as a work passage.

2. A jig body having a length corresponding to one of the sides of a solar panel; A plate-shaped cushioning member provided on the back surface of both ends of the jig body in the longitudinal direction and extending across the entire width of the jig body; A hook portion provided at one end of the jig body and capable of engaging with the edge portion of the solar panel, The jig for walking on an upper portion of a solar panel is characterized in that the jig body has an anti-slip upper surface.

Images