Floating board assembly and method for setting up floating board assembly

Abstract

Provided is a resin floating plate for a solar panel that suppresses expansion and contraction. A resin floating plate for a solar panel is provided, which is characterized by including: an annular floating plate portion formed to be hollow, and a concave portion having a peripheral wall provided within the annular floating plate portion, the concave portion being formed such that a back wall surface is recessed toward a front wall surface in a manner capable of accommodating air, and at least a part of the back wall within the concave portion is integrated with the front wall.

Description

[0001] This application is a divisional application of the original application with the application number 201780039491.2, the invention title of "Floating Plate, Floating Plate Aggregate and Method for Installing Floating Plate Aggregate", which entered the Chinese national phase from the PCT international application with the international filing date of June 30, 2017. Technical Field

[0002] The present invention relates to a floating plate for a solar panel, a floating plate aggregate formed by connecting floating plates, and a method for installing such a floating plate aggregate. Background Art

[0003] In solar power generation that converts sunlight into electricity, solar panels (also referred to as solar cell panels, solar cell modules) are used.

[0004] Previously, solar panels were mainly installed on the roofs, walls, and ground of buildings, but in recent years, there has been a growing trend to install them on the surfaces of idle ponds and lakes.

[0005] When installing a solar panel on the water surface, a floating plate is used to enable the solar panel to float on the water surface, and then the solar panel is installed on the floating plate (see Patent Documents 1 and 2).

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Patent Document 1: Japanese Patent Application Laid-Open No. 2014-511043

[0009] Patent Document 2: Japanese Patent Application Laid-Open No. 2015-217771 Summary of the Invention

[0010] Problems to be Solved by the Invention

[0011] (First Aspect)

[0012] In order for the floating plate to have the buoyancy to float the solar panel on the water surface, it is formed as a resin hollow molded body having gas (such as air) inside.

[0013] In order for the solar panel to be well irradiated by sunlight, the floating plate is installed in a place with good sunlight, so there may be a situation where the gas inside the floating plate expands due to sunlight.

[0014] When this happens, as the gas inside the floating plate expands, the floating plate itself will also expand.

[0015] On the other hand, at night, as the temperature drops, the expanded gas will contract, and the expanded floating plate will also contract accordingly.

[0016] It should be noted that, in the long term, the temperature difference between summer and winter and other factors will also cause the floating plate to expand and contract.

[0017] Therefore, although the floating plate itself expands and contracts repetitively every day, for example, in the part where the solar panel is installed on the floating plate, because the rigidity of the installation part is increased, or there are installation metal fittings for installation, etc., it is a part with higher rigidity compared to other parts. Therefore, its followability to the expansion and contraction of the floating plate is poor.

[0018] Therefore, stress and the like are more likely to concentrate in the part where the solar panel is installed, and deformation and installation loosening will occur in the part where the solar panel is installed.

[0019] In the first aspect of the present invention, in view of the above situation, the object is to provide a resin floating plate for a solar panel that can suppress expansion and contraction.

[0020] (Second aspect)

[0021] In Patent Document 1, when fixing a solar panel on a floating plate, an elastomer fixing profile is used.

[0022] On this fixing profile, there is a groove for clamping the frame of the solar panel, and the edge of the frame is inserted into the groove to elastically clamp the frame.

[0023] On the other hand, for example, when the floating plate is floating on the water surface, operations such as setting and maintaining the solar panel are carried out. However, in order to make the floating plate have buoyancy, it is formed as a resin hollow molded body with gas (such as air) inside. When setting and maintaining the solar panel, workers need to step on the floating plate, and in this case, the floating plate may bend.

[0024] When this happens, due to the influence of this bending, stress is applied in the direction of releasing the clamping of the solar panel (the direction in which the groove widens), resulting in the possibility of the fixing of the solar panel falling off.

[0025] In addition, there may also be a situation where stress is applied in the floating direction of the solar panel due to strong wind, and thus stress is applied in the direction of releasing the clamping of the solar panel (the direction in which the groove widens), resulting in the possibility of the fixing of the solar panel falling off.

[0026] Therefore, it is desirable to have a floating plate that can fix the solar panel more stably.

[0027] In a second aspect of the present invention, in view of the above circumstances, an object is to provide a resin floating plate for a solar panel capable of stably fixing a solar panel, and a method for manufacturing such a floating plate.

[0028] (Third aspect)

[0029] When connecting one of the four corners of the floating plate to one of the four corners of the connecting member to form an assembled floating plate portion having a rectangular overall shape, only fixing ears are left at the four corners of the assembled floating plate portion.

[0030] In this case, when considering tying the anchor rope to the fixing ear so that the assembled floating plate portion does not move on the water, since the fixing ears are only left at the four corners of the assembled floating plate portion, the anchor rope can only be tied at four places.

[0031] Moreover, when the assembled floating plate portion attempts to move under the influence of wind or the like, the force that holds back its movement acts on the anchor rope or the fixing ear to which the anchor rope is connected, and this force increases as the number of floating plate assemblies increases and the assembled floating plate portion becomes larger.

[0032] On the other hand, in order to increase the power generation amount, it is necessary to increase the number of solar panels installed. In response to such a requirement, after the number of floating plate assemblies increases, when the assembled floating plate portion attempts to move under the influence of wind or the like, there is a risk of breakage of the fixing ear to which the anchor rope is connected and the anchor rope.

[0033] Moreover, in a state where the assembled floating plate portion can only be tied and fixed with an anchor rope at the four corners, when breakage occurs in two of the anchor ropes or the fixing ears to which the anchor ropes are connected, it becomes difficult to tie the assembled floating plate portion to the fixed position.

[0034] Here, when pulling the assembled floating plate portion at four places, 25% of the total force required for pulling is shared at each place. When one of the places is damaged and becomes three places, each place needs to bear 33% of the total force required for pulling. Therefore, the force applied to the anchor rope and the fixing ear to which the anchor rope is connected increases.

[0035] Therefore, once breakage of one of the anchor rope and the fixing ear to which the anchor rope is connected becomes three positions, the probability of breakage of the remaining anchor rope and the fixing ear to which the anchor rope is connected will increase significantly, making the fixing of the assembled floating plate portion unstable. Therefore, it is expected to be able to tie and fix the assembled floating plate portion more stably.

[0036] In addition, depending on the terrain of the place where the assembled floating plate portion is installed (for example, the terrain of a pond or a lake bottom), in some cases, there is a situation where it is not possible to ensure that the anchor rope can be connected at the four corners of the assembled floating plate portion.

[0037] Therefore, it is expected that the part of the collective floating plate section where the anchor rope is connected has a high degree of freedom.

[0038] In the third aspect of the present invention, in view of the above situation, an object is to provide a resin floating plate for a solar panel that can be made into a collective floating plate section with a high degree of freedom in the position where mooring components such as anchor ropes are tied, or a collective floating plate section that can be stably moored.

[0039] (Fourth aspect)

[0040] The electricity generated by the solar panel is not used to be consumed on the water surface such as in ponds and lakes. Therefore, it is necessary to use a power cable (hereinafter simply referred to as a cable) to connect between the solar panel installed on the water surface and the facilities on land (power storage facilities and power transmission facilities).

[0041] In this case, a method of laying a cable along the bottom surface of a pond or a lake from the side of the solar panel installed on the water surface to the land can be considered.

[0042] It should be noted that laying in this way is the same as laying a submarine cable, in order to avoid damage to the cable due to long-term deterioration caused by the self-weight of the cable.

[0043] However, in this case, compared with the case of laying a cable in a straight line connection from the solar panel installed on the water surface to the facilities on land, there is a problem that the length of the cable will become longer.

[0044] In addition, if the cable is laid in water, there will also be a problem that it takes time for maintenance and inspection of the cable.

[0045] In the fourth aspect of the present invention, in view of the above situation, an object is to provide a floating plate assembly that can shorten the laid cable and can reduce the time for maintenance and inspection, etc.

[0046] (Fifth aspect)

[0047] In the process of solar power generation, the direction of the solar panel is important. By making the solar panel track the sun, the power generation efficiency can be greatly improved. Therefore, although solar power generation systems with a sun tracking mechanism have been studied in various aspects, they all require excessive capital investment and excessive equipment investment. In addition, in order to track the sun, a large amount of electricity is also consumed, so there is a problem that the power generation efficiency cannot be comprehensively improved.

[0048] The present invention is proposed in view of such prior art, and its object is to provide a solar power generation device that is simple in structure, can track the sun simultaneously, does not require a large amount of equipment investment, and can suppress the power consumption for tracking the sun.

[0049] Technical solutions for solving the problems

[0050] According to a first aspect of the present invention, there is provided a floating plate, which is a resin floating plate for a solar panel, and is characterized by including: an annular floating plate portion formed to be hollow; and a concave portion having a peripheral wall provided within the annular floating plate portion; wherein, the concave portion is formed such that the back wall is recessed toward the front wall side in a manner capable of accommodating air, and at least a part of the back wall within the concave portion is integrated with the front wall.

[0051] According to the first aspect of the present invention, it is possible to provide a resin floating plate for a solar panel that suppresses expansion and contraction.

[0052] Next, various embodiments of the present invention will be exemplified. The embodiments described below can be combined with each other.

[0053] Preferably, it is characterized by including a support portion for supporting the solar panel, the support portion being formed by combining the back wall and the front wall, wherein the support portion can stand up toward the front wall side with one side connected to the inner wall of the opening portion of the annular floating plate portion as a hinge in a manner of forming the opening portion of the annular floating plate portion; the concave portion is provided in a part of the annular floating plate portion located on the side opposite to the standing support portion across the opening portion.

[0054] Preferably, it is characterized in that the concave portion includes: a frustum-shaped depression that tapers toward the front wall side at both ends and in the center in the direction along the support portion; and a groove-shaped depression that is connected to the frustum-shaped depression in the direction along the support portion and narrows in width toward the front wall side; wherein, the concave portion is integrated with the back wall and the front wall at the front end portion of the frustum-shaped depression, while the back wall and the front wall are not integrated in the groove-shaped depression portion.

[0055] Preferably, it is characterized in that the front wall includes: an inclined portion that is provided on the opposite side of the concave portion, from a position substantially at the end above the concave portion on the side opposite to the opening portion, so as to approach the back wall side toward the side away from the concave portion; and a receiving portion that is provided in a manner of standing up from the end of the inclined portion on the side opposite to the concave portion side and can receive the end of the solar panel.

[0056] Preferably, it is characterized in that a groove portion is provided at least from a position above the concave portion to the inclined portion of the surface wall, and the groove portion is open in such a manner that there is almost no height difference between the front end on the inclined portion side of the groove portion and the inclined portion.

[0057] According to a second aspect of the present invention, there is provided a floating plate which is a resin floating plate for a solar panel, and is characterized by including: a fixing metal fitting on the other end side which fixes the other end side of the solar panel; and a mounting portion which is provided on the other end side and is used for mounting the fixing metal fitting on the other end side; the fixing metal fitting on the other end side at least includes a lower metal fitting, one end side of the lower metal fitting is disposed on the lower side of the solar panel, and the other end side is fixed to the mounting portion, and the lower metal fitting is engaged or fixed to the solar panel.

[0058] According to a second aspect of the present invention, it is possible to provide a resin floating plate for a solar panel that stably fixes a solar panel and a manufacturing method of such a floating plate.

[0059] Hereinafter, various embodiments of the present invention will be illustrated by way of example. The embodiments described below can be combined with each other.

[0060] Preferably, the floating plate is characterized by including: a screw for fixing the fixing metal fitting on the other end side to the mounting portion, the fixing metal fitting on the other end side includes an upper metal fitting, one end side of the upper metal fitting is disposed on the upper side of the solar panel, and the other end side is fixed to the mounting portion, and the upper metal fitting, together with the lower metal fitting, clamps the solar panel in such a manner that one end side presses the solar panel toward the lower metal fitting side, and the other end side of the upper metal fitting and the other end side of the lower metal fitting are commonly fixed to the mounting portion by the screw.

[0061] Preferably, the floating plate is characterized in that the lower metal fitting is provided with a U-shaped hook portion at one end side, and the lower metal fitting can be engaged with the solar panel by engaging the hook portion on a engaging portion capable of engaging with the hook portion provided on the solar panel.

[0062] Preferably, a floating plate, which is a resin floating plate for a solar panel, is characterized by comprising: a receiving part provided on the other end side for receiving the other end side of the solar panel; and a mounting part provided on the other end side near the receiving part for mounting and fixing a fixing metal fitting on the other end side of the solar panel; the mounting part includes: a first concave part whose back wall is recessed toward the front wall side and has a peripheral wall part; and a nut receiving part whose front wall is recessed toward the back wall side for receiving and fixing a nut, and the bottom of the nut receiving part as the back wall side is integrated with the bottom of the first concave part as the front wall side.

[0063] Preferably, the floating plate is characterized by comprising: an inclined part provided near the other end side, and the front wall is closer to the back wall side from one end side toward the other end side, and the receiving part is a vertical wall part where the front wall stands up from the end of the other end side of the inclined part in a direction away from the back wall, and the part of the peripheral wall part of the first concave part on the side of the vertical wall part is integrated with the vertical wall part.

[0064] Preferably, the floating plate is characterized in that the mounting part includes: a pair of the nut receiving parts provided at intervals in the direction along the receiving part; and a second concave part recessed further toward the front wall side from the bottom surface of the first concave part at the other end side of the straight line connecting the nut receiving parts and at a position between the nut receiving parts in the direction along the receiving part, wherein the bottom of the second concave part on the front wall side is integrated with the front wall.

[0065] Preferably, the floating plate is characterized in that a plurality of the mounting parts are provided in the direction along the receiving part.

[0066] Preferably, the floating plate is characterized in that the mounting part includes: an insert nut (embedded nut) fixed in the nut receiving part; a screw screwed with the insert nut and fixing the fixing metal fitting on the other end side; and the fixing metal fitting on the other end side for fixing the solar panel screwed and fixed by the screw; the fixing metal fitting on the other end side is composed of a lower metal fitting with one end side disposed under the solar panel and an upper metal fitting with one end side disposed above the solar panel, and the other end sides of the lower metal fitting and the upper metal fitting can be simultaneously fixed on the insert nut by the screw, so that the lower side and the upper side of the solar panel can be fixed.

[0067] Preferably, the floating board is characterized in that the upper metal fitting presses the solar panel against the lower metal fitting at one end side, and clamps it together with the lower metal fitting. A U-shaped hook portion is provided at one end side of the lower metal fitting. The lower metal fitting is fixed to the solar panel by engaging the hook portion that can be engaged with the hook portion provided on the solar panel at the engaging portion.

[0068] Preferably, the floating board is characterized by including: a support portion that supports one end side of the solar panel; and a fixing metal fitting at one end side that fixes one end side of the solar panel on the support portion. The support portion is formed by combining the back wall and the front wall. The sides other than the side at one end of the support portion are cut off so that the side at one end can be erected toward the front wall side as a hinge to form an opening portion. The fixing metal fitting at one end side includes: a fixing portion that is fixed on the side opposite to the hinge, that is, on the surface of the support portion facing one end side in the state where the support portion is erected; and a clamping portion that is designed to extend from the fixing portion in a direction substantially orthogonal to the fixing portion and clamps the solar panel together with the support portion. When the fixing metal fitting at one end side is in a temporarily fixed state relative to the support portion, it can slide relative to the support portion in such a manner that the distance between the clamping portion and the support portion is variable.

[0069] Preferably, a manufacturing method of a resin floating board for a solar panel is provided. The resin floating board for a solar panel includes a receiving portion that receives the other end side of the solar panel at the other end side; and a mounting portion that is provided near the receiving portion and mounts and fixes the fixing metal fitting at the other end side of the solar panel. The manufacturing method of the resin floating board for a solar panel is characterized in that the mounting portion is formed by integrating the bottom portion on the back wall side of a nut receiving portion that is formed by recessing the front wall toward the back wall and houses a fixing nut, and the bottom portion on the front wall side of a first recess having a peripheral wall portion that is formed by recessing the back wall toward the front wall.

[0070] According to the third aspect of the present invention, a floating board is provided, which is a resin floating board for a solar panel, and is characterized by including: an annular floating board portion having an opening; and a mooring portion provided near the opening for mooring a mooring member formed by combining a front wall and a back wall.

[0071] According to a third aspect of the present invention, there is provided a floating plate made of resin for a solar panel. When forming an assembled floating plate portion, an assembled floating plate portion with a high degree of freedom in the position for forming mooring members such as fixed anchor ropes can be formed. In addition, the assembled floating plate portion can be moored and fixed stably.

[0072] Hereinafter, various embodiments of the present invention will be exemplified. The embodiments described below can be combined with each other.

[0073] Preferably, the floating plate includes a support portion formed by combining a front wall and a back wall corresponding to the opening portion, and is erected toward the front wall side in such a manner that the opening portion is opened with the side connected to the inner wall surface on one end side of the opening portion as a hinge, supporting one end side of the solar panel, and the mooring portion is provided near the other end side of the opening portion.

[0074] Preferably, the floating plate includes: a one-end-side fixing fitting installed on the side opposite to the hinge of the support portion, clamping one end side of the solar panel together with the support portion; and a stopper portion provided near both ends of the edge portion on the other end side of the opening portion, and receiving a part of the one-end-side fixing fitting when the support portion is laid down in a manner of closing the opening portion in a state where the one-end-side fixing fitting is installed on the support portion.

[0075] Preferably, the one-end-side fixing fitting includes: a fixing portion fixed on the side opposite to the hinge, that is, the surface of the support portion facing the one end side in a state where the support portion is erected; and a clamping portion extending from the fixing portion in a direction substantially orthogonal to the fixing portion, clamping the solar panel together with the support portion; and a finger insertion recess for inserting a finger between the fixing portion and the support portion is provided on the surface of the support portion facing the one end side in a state where the support portion is erected.

[0076] Preferably, the mooring portion is provided at substantially the center of the floating plate.

[0077] Preferably, the floating plate includes: an eyebolt for fixing the mooring member; and a nut screwed with the eyebolt; and the mooring portion has a first through hole for the eyebolt to pass through.

[0078] Preferably, the floating board is characterized by including: a first fixing plate disposed on the surface wall side or the back wall side of the mooring part; a pair of first bolts for fixing the first fixing plate; and a pair of first nuts screwed with the first bolts; the mooring part has a pair of second through holes provided with the first bolts passing through across the first through hole; the first fixing plate is correspondingly disposed with the first through hole and the second through hole, and has a through hole for the eyebolt and the first bolt to pass through; the first through hole and the second through hole are arranged side by side on the mooring part in the direction of the edge part along the other end side of the opening part.

[0079] Preferably, the first through hole has a tapered portion which is formed by the surface wall recessed toward the back wall side with a gradually tapering front end, and includes a second fixing plate which is disposed on the surface wall of the mooring part to cover the tapered portion when the first fixing plate is disposed on the back wall side, and the second fixing plate is correspondingly disposed with the first through hole and has a through hole for the eyebolt to pass through.

[0080] According to the fourth aspect of the present invention, there is provided a floating board assembly formed by connecting floating boards for solar panels, which is characterized by including: a trestle having a linear floating board portion formed by linearly connecting the floating boards; and an assembled floating board portion formed by connecting the floating boards; the floating board at the base end of the trestle is directly connected to the floating board of the assembled floating board portion.

[0081] According to the fourth aspect of the present invention, there is provided a floating board assembly which can shorten the length of the laid cable and can reduce the time spent on maintenance inspection and the like.

[0082] Hereinafter, various embodiments of the present invention will be illustrated by way of example. The following embodiments can be combined with each other.

[0083] Preferably, a floating board assembly formed by connecting floating boards for solar panels is characterized by including: a trestle having a linear floating board portion formed by linearly connecting the floating boards; an assembled floating board portion formed by connecting the floating boards for arranging solar panels; and a connecting floating board portion formed by connecting the floating boards for connecting between the assembled floating board portion and the trestle; the number of the floating boards in the width direction of the connecting floating board portion is more than the number of the floating boards in the width direction of the trestle and less than the number of the floating boards on the side of the edge of the assembled floating board portion connected by the connecting floating board portion.

[0084] Preferably, the number of the floating boards in the width direction of the connecting floating board portion increases from the trestle side toward the assembled floating board portion side.

[0085] Preferably, it is characterized in that the trestle has a plurality of the linear floating plate parts arranged side by side, and the adjacent linear floating plate parts are connected by a passage joint.

[0086] Preferably, it is characterized in that the trestle has three or more of the linear floating plate parts.

[0087] Preferably, there is provided a method for arranging a floating plate assembly, the floating plate assembly including: an assembled floating plate part which is formed by connecting floating plates for solar panels and is used for arranging solar panels; and a trestle which has linear floating plate parts formed by linearly connecting the floating plates; the arranging method is characterized in that the trestle is connected to the assembled floating plate part in such a manner that the trestle is located on the north side or the south side. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] Figure 1 It is a perspective view showing a state in which a solar panel is arranged on a floating plate according to an embodiment of the present invention.

[0089] Figure 2 It is a perspective view showing a state in which a solar panel is removed from a floating plate according to an embodiment of the present invention.

[0090] Figure 3A 、 Figure 3B It is a view of the upper side of a floating plate according to an embodiment of the present invention, Figure 3A which is a perspective view, Figure 3B and is a top view.

[0091] Figure 4A 、 Figure 4B It is a view of the lower side of a floating plate according to an embodiment of the present invention, Figure 4A which is a perspective view, Figure 4B and is a top view.

[0092] Figure 5 It is a perspective view of the upper side of a floating plate in a state where a support part according to an embodiment of the present invention is erected.

[0093] Figure 6 It is a perspective view of the lower side of a floating plate in a state where a support part according to an embodiment of the present invention is erected.

[0094] Figure 7 It is along Figure 3A 、 Figure 3B 、 Figure 4A 、 Figure 4B and Figure 6 the sectional view taken along line A - A shown in

[0095] Figure 8A 、Figure 8B It shows an enlarged view around the mounting part indicated by arrow C in Figure 3A , Figure 3B and Figure 4A , Figure 4B , and is an enlarged view of the mounting part around the mounting part indicated by arrow C in Figure 8A is an enlarged view of the perspective view on the surface wall side, Figure 8B is an enlarged view of the plan view on the back wall side.

[0096] Figure 9A , Figure 9B is a cross-sectional view of a part of the mounting part according to the embodiment of the present invention, Figure 9A It shows a cross-sectional view of a part of the cross-section along the Figure 8A , Figure 8B Y - Y line in Figure 9B It shows a cross-sectional view of a part of the cross-section along the Figure 8A , Figure 8B X - X line in

[0097] Figure 10 is a schematic diagram showing the connection of the floating board according to the embodiment of the present invention with a through joint.

[0098] Figure 11 is a cross-sectional view for explaining a modification of the other end side of the solar panel according to the embodiment of the present invention.

[0099] Figure 12A , Figure 12B , Figure 12C is along the Figure 3B and Figure 4B D - D line cross-sectional view of the D - D line in Figure 12A is a schematic diagram showing the state of the fixing member without mounting a mooring member such as a eyebolt, Figure 12B is a schematic diagram showing the state of the fixing member with a mooring member such as an eyebolt mounted in such a way that the loop of the eyebolt is on the back wall side, Figure 12C is a schematic diagram showing the state of the fixing member with a mooring member such as an eyebolt mounted in such a way that the loop of the eyebolt is on the surface wall side.

[0100] Figure 13 is a cross-sectional view for explaining the opening and closing mechanism of the opening according to the embodiment of the present invention.

[0101] Figure 14 is a schematic diagram showing the floating board assembly formed by connecting the floating boards according to the embodiment of the present invention.

[0102] Figure 15 is a schematic diagram showing another example of the floating board assembly according to the embodiment of the present invention.

[0103] Figure 16 It is a schematic diagram showing the way of laying cables from solar panels.

[0104] Figure 17 It is a diagram for explaining a modified example of a floating plate having a laying form suitable for cables.

[0105] Figures 18A - 18E It is a top view schematically showing a connection example in which a towing rope is used to connect the floating plate assemblies related to the respective modified examples. Detailed implementation mode

[0106] Hereinafter, for the mode for implementing the present invention (hereinafter referred to as "implementation mode"), a detailed description will be given with reference to the drawings.

[0107] It should be noted that in the description of the implementation mode, the same components are given the same reference numerals.

[0108] Figure 1 It is a perspective view showing the state in which the solar panel 50 is provided on the floating plate 10 according to the implementation mode of the present invention, Figure 2 It is a perspective view showing the state in which the solar panel 50 is removed from the floating plate 10.

[0109] It should be noted that in the following description, the side of the floating plate 10 where the solar panel 50 is provided is referred to as the upper side, and the side of the floating plate 10 placed on the water surface is referred to as the lower side.

[0110] In addition, when explaining the solar panel 50 and the like, the side on the water surface side is also referred to as the lower side, and the side opposite to the water surface side is referred to as the upper side.

[0111] As will be described later, Figure 1 and Figure 2 the floating plate 10 of the present implementation mode shown in can connect a large number of floating plates 10 to each other with a passage joint 60 (refer to Figure 10 ), thereby forming an assembled floating plate part 120 provided with the solar panel 50 (refer to Figure 14 ).

[0112] It should be noted that this assembled floating plate part 120 (refer to Figure 14 ) is a part where thousands (for example, up to 10,000 in many cases) of floating plates 10 are assembled. Among the floating plates 10 used for the assembled floating plate part 120, solar panels 50 are not provided on some of the floating plates 10, but are used as passages for maintenance and inspection of the solar panels 50.

[0113] In addition, this passage can also be used to lay cables led out from the solar panel 50.

[0114] On the other hand, since the collective floating plate portion 120 (see Figure 14 ) needs to be arranged at a position where the power generation efficiency of the solar panel 50 is good, it is important to make it immovable under the influence of wind or the like.

[0115] Therefore, the floating plate 10 that is not provided with the above-mentioned solar panel 50 and is used as a passage or the like as described above can be utilized, and it can be in the form of a mooring component such as a mooring anchor rope. As will be described later, the floating plate 10 has a structure capable of mooring mooring components such as a mooring anchor rope.

[0116] It should be noted that the floating plate assembly 100 of the present embodiment (see Figure 14 ) is not only the above-mentioned collective floating plate portion 120 (see Figure 14 ). As will be described in detail below, by making flexible use of the floating plate 10, it is possible to lay a cable from the collective floating plate portion 120 to a facility on land.

[0117] As described above, the floating plate 10 of the present embodiment can be used both as a floating plate for setting the solar panel 50 and as a floating plate for forming a passage or the like. Next, first, the structure in the case of setting the solar panel 50 will be described, and then, the structure in the case of being used as a passage or the like and as a floating plate for mooring a mooring component will be described.

[0118] And, after describing the case of the floating plate 10, furthermore, the structure of the floating plate assembly 100 (see Figure 14 ) will be described in detail.

[0119] As Figure 1 shown, the floating plate 10 of the present embodiment is supported in such a way that the short side of the substantially rectangular solar panel 50 is inclined. For example, it is a floating plate for a solar panel that can set the solar panel 50 on the water surface of a pond or a lake.

[0120] (Outline of installing the solar panel)

[0121] As Figure 1 shown, the floating plate 10 includes: a support portion 11 that supports one end portion 51 (one side of the end portion 51 is referred to as one end side) of one of the pair of long sides of the solar panel 50; and a receiving portion 12 that receives the other long side of the other end portion 52 (the other side of the other end portion 52 is referred to as the other end side) of the solar panel 50.

[0122] It should be noted that the height of the support portion 11 is designed by considering the power generation efficiency of the solar panel 50 and setting the solar panel 50 in an appropriate inclined state.

[0123] As Figure 2As shown, at one end portion 51 of the solar panel 50, an aluminum base 53 supported by the supported portion 11 is provided, and this base 53 is supported on the support portion 11.

[0124] On the other hand, as will be described in detail later, the floating plate 10 includes a one-end-side fixing fitting 13 that fixes one side (one-end side) of the one end portion 51 of the solar panel 50 to the support portion 11.

[0125] Moreover, the solar panel 50 is clamped and fixed by being sandwiched between the one-end-side fixing fitting 13 and the support portion 11.

[0126] For example, in Patent Document 1, it is achieved by mounting an elastomer fixing profile provided with a groove for clamping the frame of the solar panel on the floating plate, and using the fixing profile to elastically clamp the edge of the frame of the solar panel, thereby fixing the solar panel to the floating plate.

[0127] However, in the case of the state of Patent Document 1, due to strong winds or the like, a force is applied in the direction in which the solar panel floats. If stress is applied in the direction in which the clamping of the solar panel can be released (the direction in which the groove widens), there is a possibility that the fixing of the solar panel will come off.

[0128] On the other hand, as described in the present embodiment, by using a metal fixing fitting 13, unlike using an elastomer or the like to elastically clamp, the solar panel 50 can be clamped more firmly.

[0129] In addition, as Figure 2 shown, an aluminum base 54 may also be provided at the other end portion 52 of the solar panel 50, which is the same as the aluminum base 53 provided at the one end portion 51.

[0130] And, as will be described in detail later, the floating plate 10 includes two other-end-side fixing fittings 14 that fix one side (the other end side) of the other end portion 52 of the solar panel 50 received by the receiving portion 12 to the floating plate 10, and the other end side of the solar panel 50 can be fixed to the floating plate 10 through the other-end-side fixing fittings 14.

[0131] As described above, on one side (the other end side) of the other end portion 52 of the solar panel 50, by using a metal fixing fitting 14 as well, unlike using an elastomer or the like to elastically clamp, the solar panel 50 can be clamped more firmly.

[0132] It should be noted that, in this embodiment, the other end side fixing fitting 14 can also be provided at the center. According to requirements, a base can be provided at a position between the two bases 54, or it can be a fixing method in which three other end side fixing fittings 14 are fixed at three positions. By such a setting, the other end side (one side) of the other end portion 52 of the solar panel 50 can be fixed more firmly and stably.

[0133] However, when installing the floating plate 10, there are also cases where it is not necessary to provide the bases 53 and 54 on the solar panel 50.

[0134] (Overall structure of the floating plate)

[0135] Hereinafter, with reference to the drawings, the floating plate 10 will be described in detail.

[0136] Figure 3A 、 Figure 3B is a view of the upper side of the floating plate 10, Figure 3A is an axonometric view, Figure 3B is a top view, Figure 4A 、 Figure 4B is a view of the lower side of the floating plate 10, Figure 4A is an axonometric view, Figure 4B is a top view.

[0137] In addition, Figure 5 is a figure corresponding to Figure 3A , that is, a view of the upper side of the floating plate 10, an axonometric view in which the support portion 11 is in a raised state as described later, Figure 6 is a figure corresponding to Figure 4A , that is, a view of the lower side of the floating plate 10, an axonometric view in which the support portion 11 is in a raised state as described later.

[0138] It should be noted that, Figure 5 it also shows the state in which the one end side fixing fitting 13 is temporarily fixed to the support portion 11.

[0139] For example, the floating plate 10 can be manufactured by blow molding a molten tubular parison with a plurality of split molds, and various thermoplastic resins can be appropriately used as the molding material. For example, polyolefin resins such as polyethylene and polypropylene can be cited.

[0140] As Figure 3A 、 Figure 3B and Figure 4A 、 Figure 4B shown, the overall outer shape of the floating plate 10 is rectangular (rectangular), as Figure 3A and Figure 4A shown, its structure has: a side wall portion 15 containing a parting line PL; a surface wall 16 located on the upper side (refer to Figure 3A); the back wall 17 located on the lower side (refer to Figure 4A ); and a hollow portion that houses internal gas (such as air).

[0141] (Support portion and opening portion)

[0142] As Figure 3A and Figure 4A shown, a support portion 11 (refer to the shaded and hatched portion) is formed on the floating plate 10, which is formed by combining the back wall 17 and the front wall 16, and is for supporting the solar panel 50.

[0143] Figure 3A 、 Figure 3B and Figure 4A 、 Figure 4B represent the state before the support portion 11 is erected as shown in Figure 1 . Three sides 21, 22, 23 of the periphery of the support portion 11 except for one end side 24 are cut off, and the one end side 24 is used as a hinge to form an opening portion 26 (refer to Figure 5 and Figure 6 ) in such a way that it can be erected toward the front wall 16 side (the side where the solar panel 50 is disposed).

[0144] It should be noted that, as Figure 5 shown, the floating plate 10 of the present embodiment includes an annular floating plate portion 30 (refer to the shaded and hatched portion), which is formed in a manner of surrounding the opening portion 26. The annular floating plate portion 30 has a hollow structure, and there is gas (such as air) that generates buoyancy inside it.

[0145] And, as Figure 1 shown, when the solar panel 50 is installed, the support portion 11 is erected toward the front wall 16 side in a manner of contacting the inner wall surface 25 of the opening portion 26 on the side of the hinge side edge 24 (refer to Figure 3A ), and the solar panel 50 is disposed on the side of the side 22 opposite to the one end side 24 that serves as the hinge in such a way that the lower side of one end of the solar panel 50 is supported.

[0146] It should be noted that, as Figure 4B shown, on the side of the side 22 opposite to the one end side 24 that serves as the hinge of the support portion 11, a receiving rib 22a (refer to the dotted line portion) for receiving one end portion 51 side of the solar panel 50 is provided.

[0147] Specifically, in the portion of the load-bearing rib 22a, a stepped structure is formed by gradually approaching the back wall 17 toward the front wall 16. When the solar panel 50 is disposed on the floating plate 10, one end portion 51 side of the solar panel 50 can be received, so that one end portion 51 side of the solar panel 50 does not shift toward one end side beyond the support portion 11.

[0148] When the support portion 11 is configured in this way, the opening 26 is located near the support portion 11. Since the inner wall surface of the opening 26 serves as a wall surface that suppresses the bending of the structure, bending is not likely to occur.

[0149] In addition, the support portion 11 is connected to the main body of the floating plate 10 through a hinge structure. Therefore, even if the floating plate 10 bends, the support portion 11 is not easily affected. In addition, the support portion 11 is formed by combining the back wall 17 and the front wall 16 with almost no gap therebetween, and is a portion where the rigidity is improved, so that it will not be deformed due to the influence of the bending of the floating plate.

[0150] Therefore, in order to be able to perform the fixing work on the collective floating plate portion 120 (refer to Figure 14 ), there is a worker on the access joint 60 (refer to Figure 10 ) near the floating plate 10 where such fixing work is performed. Since the worker steps on the floating plate 10 where the fixing work is performed, or there is a situation where stress is applied to the floating plate 10 due to the weight of the worker or the like, even in these cases, the support portion 11 is not easily affected by the bending of the floating plate 10.

[0151] Therefore, the work of fixing one end portion 51 side (one end side) of the floating plate 10 with the one end side fixing fitting 13 can be performed without being affected by bending, and thus the loosening of the installation of the one end side fixing fitting 13 caused by the influence of the bending of the floating plate 10 is avoided.

[0152] On the other hand, in the present embodiment, the other end side fixing fitting 14 is fixed to an installation portion 19 (refer to Figure 2 ) which will be described later. When the installation portion 19 is bent or the like, the fixing work of the other end side fixing fitting 14 becomes difficult, resulting in insufficient fixing. Even if it can be fixed properly, if the installation portion 19 is repeatedly bent or the like due to the passing of a worker during maintenance work in the vicinity or other various reasons, there is a risk that the fixing of the other end side fixing fitting 14 will become loose after a period of time.

[0153] Therefore, as will be described later, although the mounting portion 19 itself is not easily bent, the occurrence of bending of the floating plate 10 itself can be reduced by increasing the rigidity of the floating plate 10 itself. Further, it is not easy to apply stress to the mounting portion 19 to cause it to deform. This will be described below.

[0154] (Bending suppression structure of the floating plate)

[0155] In Figure 6 the middle support portion 11 is not visible, but at the position where the support portion 11 is located, a symbol indicating the support portion 11 is represented by an arrow, and the direction along the support portion 11 as shown in Figure 1 (refer to Figure 1 the Z-axis) is used as the Z-axis for representation.

[0156] As Figure 6 shown, a ring-shaped floating plate portion 30 is provided on the floating plate 10 (refer to the shaded diagonal portion in Figure 5 ), which is arranged in a manner surrounding the opening portion 26 and has gas (such as air) generating buoyancy inside.

[0157] As Figure 6 shown, a recess 40 is provided inside the ring-shaped floating plate portion 30, which has a peripheral wall at a position on the opposite side of the support portion 11 with the opening portion 26 interposed therebetween.

[0158] Specifically, the recess 40 is formed by molding the back wall 17 to be recessed toward the front wall 16 side.

[0159] Figure 7 is a sectional view taken along the A - A line as shown in Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 6 , in Figure 7 the upper side is the front wall 16 side of the floating plate 10, and the lower side is the back wall 17 side.

[0160] It should be noted that in Figure 7 , similar to Figure 6 , the direction along the support portion 11 as shown in Figure 1 (refer to Figure 1 the Z-axis) is used as the Z-axis for representation.

[0161] As Figure 6 and Figure 7As shown, the recess 40 includes: a recess 41, which is provided at one end along the direction of the support portion 11 (refer to the Z-axis) and is frustum-shaped, tapering gradually toward the surface wall 16; a recess 42, which is provided at the other end and is frustum-shaped, tapering gradually toward the side of the surface wall 16; and a recess 43, which is located at the center between the frustum-shaped recess 41 and the frustum-shaped recess 42 and is frustum-shaped, tapering gradually toward the surface wall 16.

[0162] That is to say, at both ends and the center of the recess 40 along the direction of the support portion 11 (see the Z-axis), there are frustum-shaped recesses 41, 42, and 43 that taper gradually toward the surface wall 16.

[0163] In addition, the recess 40 includes recesses 44 and 45, which are connected to the frustum-shaped recesses 41, 42, and 43 along the direction of the support portion 11 (refer to the Z-axis) and are groove-shaped with a narrowing width toward the side of the surface wall 16.

[0164] And, as Figure 7 shown, at the front end portions of the frustum-shaped recesses 41, 42, and 43 of the recess 40, the back wall 17 and the surface wall 16 are integrated, and in the groove-shaped recesses 44 and 45, the back wall 17 and the surface wall 16 are not integrated.

[0165] By providing such a recess 40, it plays a role of ribs to enhance the rigidity of the peripheral wall of the recess 40, thus making it not easy for the floating plate 10 to bend.

[0166] It should be noted that by making the groove-shaped recesses 44 and 45 not integrated with the surface wall 16 at the bottom on the surface wall 16 side, a flow path through which gas (such as air) can flow is provided, so that the moldability can be good during blow molding.

[0167] On the other hand, although the recess 40 reduces the volume of the gas (such as air) accommodated in the annular floating plate portion 30, the recess 40 forms a recess 40 with a peripheral wall opening toward the back wall 17 side by making the back wall 17 recess toward the surface wall 16 side. When the floating plate 10 is arranged on the water surface, it becomes an air pool at one end that bears buoyancy, so it can play a role in suppressing the reduction of buoyancy caused by the reduction of the volume of the gas (such as air) in the floating plate 10.

[0168] In addition, in order to enable the solar panel 50 to have high power generation efficiency, the floating plate 10 is arranged in a place with good sunlight. When the temperature is high during the day, the gas (such as air) in the floating plate 10 will expand, and when the temperature drops at night, the expanded gas (such as air) in the floating plate 10 will contract. Along with this change, the floating plate 10 itself will also expand and contract.

[0169] Although this expansion and contraction is caused by a different reason from the bending (deformation) caused by the staff stepping on the floating board 10, it is also the main cause of the bending (deformation).

[0170] However, in the present embodiment, as described above, by providing the concave portion 40, since the total amount of gas (such as air) accommodated in the annular floating board portion 30 is reduced, the expansion and contraction force of the gas (such as air) will also become smaller. Therefore, the occurrence of bending (deformation) of the floating board 10 caused by the temperature difference between day and night can be suppressed.

[0171] In particular, as described above, since the concave portion 40 is at the front end portions of the frustum-shaped recesses 41, 42, 43 and the back wall 17 and the front wall 16 are integrally formed, even if the gas (such as air) inside expands, the front wall 16 and the back wall 17 will not move to create a distance between them. In addition, conversely, when the gas (such as air) inside contracts, the front wall 16 and the back wall 17 will not move closer to each other, thereby being able to further suppress the bending (deformation).

[0172] On the other hand, as described above, although the concave portion 40 can act as a reinforcing rib to improve the rigidity, since it is formed by recessing the back wall 17 toward the front wall 16 side, its wall thickness will become thinner accordingly, and there may be a risk of pinholes during molding.

[0173] Here, for the part that becomes the most recessed portion toward the front wall 16 side, it is formed into a frustum shape with the wall thickness not changing locally during molding.

[0174] In addition, from Figure 6 it can be seen that the diameter of the bottom edge (opening side) of the frustum-shaped recesses 41, 42, 43 is larger than the width of the groove-shaped recesses 44, 45, and it is formed in a way that slopes slowly so that the wall thickness does not become thinner.

[0175] Furthermore, in the present embodiment, as Figure 7 shown, considering that the thinning of the wall thickness near the starting points of the back wall 17 adjacent to the concave portion 40 and the frustum-shaped recesses 41, 42 may cause the occurrence of pinholes, for the frustum-shaped recesses 41, 42, the frustum-shaped recesses 41, 42 are raised toward the front wall 16 side at an angle of θ1 (specifically 110 degrees) from the back wall 17 adjacent to the concave portion 40.

[0176] Similarly, at the frustum-shaped recess 43, the front end side of the frustum-shaped recess 43 is raised toward the front wall 16 side at an angle of θ2 (specifically 145 degrees) from the bottom surface on the front wall 16 side of the groove-shaped recesses 44, 45.

[0177] It should be noted that, as an example of the above angles, the range of θ1 is preferably within 110 ± 15 degrees, and the range of θ2 is preferably within 145 ± 15 degrees.

[0178] In addition, as Figure 7 shown, the diameter of the integrated part of the back wall 17 and the surface wall 16 of the frustoconical recess 43 located at the center of the recess 40 is smaller than the diameter of the integrated part of the back wall 17 and the surface wall 16 of the two frustoconical recesses (recesses 41 and 42) located at both ends of the recess 40. By such a design, the moldability can be improved.

[0179] In this way, by providing the recess 40 formed by recessing the back wall 17 toward the surface wall 16 within the annular floating plate portion 30, the buoyancy loss of the floating plate 10 can be suppressed, and the volume of the gas (such as air) inside the floating plate 10 can be reduced. Therefore, it is possible to simultaneously suppress the expansion and contraction of the gas that causes the deformation of the floating plate 10 and structurally improve the rigidity.

[0180] Therefore, since the occurrence of bending (deformation) of the floating plate 10 itself can be suppressed, and the stress that causes its deformation applied to the mounting portion 19 can be reduced, thereby suppressing the deformation of the mounting portion 19, it is possible to suppress the loosening of the fixing of the fixing metal fitting 14 on the other end side (refer to Figure 2 ).

[0181] It should be noted that by controlling the degree of the recess so that the back wall 17 and the surface wall 16 of the groove-shaped recessed portions 44 and 45 are not integrated, when molding the frustoconical recesses 41, 42, and 43, it is possible to maintain their wall thickness so that no pinholes appear in the recess 40. To what extent the back wall 17 of the groove-shaped recessed portions 44 and 45 needs to be spaced apart from the surface wall 16, in other words, to what extent the groove-shaped recessed portions 44 and 45 are recessed, can be determined from the viewpoint of suppressing pinholes when molding the floating plate 10.

[0182] In addition, if the width of the groove-shaped recessed portions 44 and 45 becomes wider, the volume of the gas inside the floating plate 10 can be reduced.

[0183] However, since the recess 40 itself has an open shape on the side facing the water surface and can cover the water surface to enclose and accumulate gases such as air, when the floating plate 10 sways due to strong winds or the like, a part of the gas inside the recess 40 may escape.

[0184] If this is the case, correspondingly, the buoyancy of the floating plate 10 will decrease. Even if such a thing happens suddenly, it is important to ensure that the floating plate 10 has sufficient buoyancy.

[0185] Also, since the depressions on the surface wall 16 side of the groove-shaped depressions 44 and 45 are formed shallower, from the perspective of pinholes during molding, even if the width is small, it is not easy to form pinholes. Therefore, by making the width of the groove-shaped depressions 44 and 45 smaller than the diameter of the bottom edge (opening side) of the frustum-shaped depressions 41, 42, and 43, from the perspective of buoyancy, the volume of gas inside the floating plate 10 will not be reduced too much.

[0186] Furthermore, in the present embodiment, the shape of the surface wall 16 can also suppress the bending (deformation) of the floating plate 10, thereby being able to suppress the bending of the mounting portion 19 caused by the bending influence of the floating plate 10, and suppressing the loosening of the fixing of the fixing metal fitting 14 on the other end side (refer to Figure 2 ). Hereinafter, this will be described.

[0187] When focusing on the surface wall 16 side, Figure 3A the part of the line A - A in Figure 7 is the position where the recess 40 is located, as shown in Figure 3A The surface wall 16 includes an inclined portion 18, which is located on the recess 40 from the opposite side of the opening portion 26 (refer to Figure 5 ) at a position approximately at the end of the recess 40 on the opposite side (refer to the dotted line B), and is set to approach the back wall 17 side away from the recess 40 and is arranged to be close to the other end side of the floating plate 10.

[0188] The inclined portion 18 is designed in such a way as to constitute an inclined surface with a specified inclination angle of the solar panel 50, and a groove portion 35 is provided in the inclined portion 18.

[0189] By providing such a groove portion 35, if the surface wall 16 has an uneven structure, this uneven structure can act as a reinforcing rib for enhancing rigidity, thereby being able to suppress the occurrence of bending (deformation).

[0190] In addition, the groove portion 35 is provided from the inclined portion 18 to the side of the opening portion 26 in such a way that it also exists at the position on the recess 40. By integrating the back wall 17 of the recess 40 with the surface wall 16 whose rigidity is enhanced, the overall rigidity can be further improved, and the bending (deformation) can be further suppressed.

[0191] It should be noted that the groove portion 35 is opened in such a way that the front end of the groove portion on the inclined portion 18 side has almost no discontinuity (no step) with the surface of the inclined portion 18, thereby being able to play a role in suppressing water accumulation on the floating plate 10.

[0192] (Fixing of one end side of the solar panel)

[0193] As described above with reference to Figure 1As described in the description, the solar panel 50 is fixed to the floating plate 10 by fixing one end portion 51 thereof to the support portion 11 by the one-end side fixing metal fitting 13.

[0194] As Figure 1 shown, the one-end side fixing metal fitting 13 is an L-shaped fixing metal fitting provided on the side opposite to the hinge (refer to Figure 3A , Figure 3B ), i.e., on the side of the edge 22 as shown in Figure 3A , Figure 3B . The fixing metal fitting includes: a fixing portion 13b having a side surface for fixing to the surface 11a of the support portion 11 on the one-end side facing the floating plate 10 when the support portion 11 is erected; and a clamping portion 13a having a side surface designed to extend from the fixing portion 13b in a direction substantially orthogonal to the fixing portion 13b and to clamp the solar panel 50 together with the support portion 11.

[0195] And, as Figure 1 shown, the one-end side fixing metal fitting 13 is fixed to the support portion 11 with four screws 13c. The screw holes through which the screws 13c provided for the two screws 13c closer to the center among them pass on the one-end side fixing metal fitting 13 are long holes in the vertical direction.

[0196] Therefore, when the one-end side fixing metal fitting 13 is temporarily fixed to the support portion 11 by using the two screws 13c closer to the center, the one-end side fixing metal fitting 13 can slide relative to the support portion 11 in such a manner that the distance between the clamping portion 13a and the support portion 11 is variable.

[0197] Therefore, the one-end side fixing metal fitting 13 is temporarily fixed to the support portion 11, and the one-end side fixing metal fitting 13 is slid so that a gap for inserting the solar panel 50 can be formed between the clamping portion 13a of the one-end side fixing metal fitting 13 and the support portion 11. Then, after inserting the solar panel 50 into this gap, with the solar panel 50 being clamped by the support portion 11 and the clamping portion 13a of the one-end side fixing metal fitting 13, the one-end side fixing metal fitting 13 is slid again, and the two screws 13c closer to the center are finally tightened and fixed.

[0198] And, after tightening the two screws 13c closer to the center, further, the one-end side fixing metal fitting 13 is fixed to the support portion 11 with the two outer screws 13c, thus completing the fixing of one side (one-end side) of the one-end portion 51 of the solar panel 50 to the floating plate 10.

[0199] As described above, since the support portion 11 is not easily affected by the bending of the main body of the floating plate 10, by firmly pressing the clamping portion 13a of the one-end-side fixing metal fitting 13 against one side of the solar panel 50, and only fixing the one-end-side fixing metal fitting 13 to the support portion 11, the fixing can be performed without being affected by bending.

[0200] In addition, the fixing work is carried out in a state where the one-end-side fixing metal fitting 13 is temporarily fixed to the support portion 11, so the workability is good.

[0201] (Fixing the other end side of the solar panel)

[0202] As described in the above reference Figure 2 As described in the description, the solar panel 50 is fixed by fixing the other end portion 52 side (the other end side) of the solar panel 50 to the floating plate 10 with the other-end-side fixing metal fitting 14.

[0203] And, as Figure 2 and Figure 3A 、 Figure 3B shown, the floating plate 10 includes a mounting portion 19 for mounting the other-end-side fixing metal fitting 14.

[0204] Figure 8A 、 Figure 8B is an enlarged view of the periphery of one mounting portion 19 indicated by the arrow C in Figure 3A 、 Figure 3B and Figure 4A 、 Figure 4B is an enlarged perspective view of the surface wall 16 side, Figure 8A is an enlarged top view of the back wall 17 side. Figure 8B is an enlarged top view of the back wall 17 side.

[0205] In addition, Figure 9A 、 Figure 9B is a partial cross-sectional view of the mounting portion 19, Figure 9A is a cross-sectional view showing a part of the cross-section along the Figure 8A 、 Figure 8B Y - Y line in Figure 9B is a cross-sectional view showing a part of the cross-section along the Figure 8A 、 Figure 8B X - X line in

[0206] It should be noted that in Figure 9A 、 Figure 9B , the upper side is the surface wall 16 side, the lower side is the back wall 17 side, the left side is the central side of the floating plate 10, and the right side is the end side of the floating plate 10.

[0207] As Figure 2As shown, the other-end-side fixing metal fitting 14 is mainly composed of a lower-side metal fitting 14a with one end disposed on the lower side of the solar panel 50 and an upper-side metal fitting 14b with one end disposed on the upper side of the solar panel 50. Among them, the other ends of the lower-side metal fitting 14a and the upper-side metal fitting 14b are commonly fixed to the mounting portion 19 for mounting the other-end-side fixing metal fitting 14 with screws 19ac (refer to Figure 11 ).

[0208] In this way, by forming a commonly fixed form with the lower-side metal fitting 14a and the upper-side metal fitting 14b using screws 19ac (refer to Figure 11 ), it is only necessary to remove the screws 19ac to detach the lower-side metal fitting 14a and the upper-side metal fitting 14b from the floating plate 10.

[0209] In addition, when fixing the lower-side metal fitting 14a and the upper-side metal fitting 14b to the floating plate 10, it is only necessary to install the screws 19ac.

[0210] Therefore, compared with the case of separately fixing the lower-side metal fitting 14a and the upper-side metal fitting 14b to the floating plate 10, the installation and disassembly work of the lower-side metal fitting 14a and the upper-side metal fitting 14b can be easily completed. So when the solar panel 50 fails or the like, the workability of replacing the new solar panel 50 can be improved.

[0211] And, as Figure 8A shown, at the mounting portion 19, at the positions corresponding to the screw holes through which the screws 19ac (refer to Figure 11 ) of the other-end-side fixing metal fitting 14 pass, a pair of nut receiving portions 19a with the surface wall 16 recessed toward the back wall 17 side for receiving the fixing nuts are provided. They are arranged at intervals in the direction of the receiving portion 12 along the other end portion 52 side (refer to Figure 2 ) of the solar panel 50. In this nut receiving portion 19a, a rivet nut 19ab (refer to Figure 11 ) is received and fixed, which is screwed with the screws 19ac (refer to Figure 11 ) of the other-end-side fixing metal fitting 14 fixed with screws.

[0212] In addition, as Figure 8A shown, at the mounting portion 19, at the portion where the lower-side metal fitting 14a is disposed, a stepped portion having substantially the same thickness as the lower-side metal fitting 14a is provided, which can be arranged in such a way that the lower-side metal fitting 14a does not protrude.

[0213] It should be noted that in other figures, the illustration of the stepped portion is omitted in some cases.

[0214] On the other hand, when looking at the position corresponding to the mounting portion 19 from the side of the back wall 17, as Figure 8B shown, a first recess 19c is provided, which has a peripheral wall portion 19b where the back wall 17 is recessed toward the front wall 16.

[0215] That is to say, the mounting portion 19 includes: a first recess 19c having a peripheral wall portion 19b where the back wall 17 is recessed toward the front wall 16, and a nut receiving portion 19a for receiving a fixing nut where the front wall 16 is recessed toward the back wall 17.

[0216] It should be noted that, as Figure 8B shown, on the other end side closer to the floating plate 10 than the first recess 19c ( Figure 8B the right side), a recess 19f is provided adjacent to the first recess 19c.

[0217] The recess 19f is formed slightly shallower than the first recess 19c in such a way that the back wall 17 is recessed toward the front wall 16, and it can be used as a handle when an operator holds the floating plate 10 during handling of the floating plate 10 or the like.

[0218] Therefore, the operator can stably hold the floating plate 10, making it easier to carry out the handling work of the floating plate 10 on the water surface.

[0219] And, looking at the cross-sectional structure of this part, as Figure 9A shown, the bottom 19aa on the back wall 17 side of the nut receiving portion 19a and the bottom 19d on the front wall 16 side of the first recess 19c are integrated.

[0220] As a manufacturing method capable of forming such an integrated structure, there is no particular limitation. For example, it can be formed by using blow molding according to the shape of a mold.

[0221] Therefore, the mounting portion 19, which is provided with the first recess 19c functioning as a reinforcing rib and at the same time houses the rivet nut 19ab (refer to Figure 11 ), the nut receiving portion 19a and the back wall 17 are integrally formed, so it is not easily affected by bending, and the situation where the housed and fixed rivet nut 19ab falls off from the nut receiving portion 19a due to deformation of the nut receiving portion 19a will not occur.

[0222] In addition, as in the cross-section at the position between a pair of nut receiving portions 19a in the direction of the receiving portion 12 along the other end portion 52 side of the solar cell panel 50 (refer to Figure 2 ), at the position ( Figure 8A , Figure 8B the position of the X - X line in Figure 9B shown, at a position closer to the back wall 17 than a pair of nut receiving portions 19a (refer to Figure 8A ,Figure 8B and Figure 9A ) The connecting straight line is closer to the other end side. Further, a second concave portion 19e recessed toward the surface wall 16 is provided. By integrating the bottom portion 19ea on the surface wall 16 side of the second concave portion 19e with the surface wall 16, the rigidity can be further improved.

[0223] In addition, as Figure 9A , Figure 9B shown, the receiving portion 12 on one side (the other end side) for receiving the other end portion 52 of the solar panel 50 has a portion integrated with the surface wall 16 and the back wall 17.

[0224] Specifically, as Figure 3A , Figure 3B shown, the receiving portion 12 is formed such that the surface wall 16 stands up from the end portion on the other end side of the inclined portion 18 in a direction away from the back wall 17.

[0225] That is to say, the receiving portion 12 is formed as a standing wall portion. As Figure 9A , Figure 9B shown, the peripheral wall portion 19b of the first concave portion 19c is integrated with the standing wall portion on the side of the receiving portion 12 as the standing wall portion.

[0226] Therefore, the rigidity of the receiving portion 12 on one side (the other end side) for receiving the other end portion 52 of the solar panel 50 becomes high. Even if the gas in the portion closer to the center of the floating plate 10 where there is more gas (such as air) than in the receiving portion 12 expands and contracts, the bending (deformation) caused thereby will not affect the mounting portion 19 located outside the receiving portion 12.

[0227] In the above manner, the mounting portion 19 not only has a high rigidity such that it is not easily bent (deformed) itself, but is also not easily affected even if other parts of the floating plate 10 are bent (deformed). Therefore, even if the nut housing portion 19a mounted on the mounting portion 19 is deformed, it will not cause the rivet nut 19ab (refer to Figure 11 ) housed and fixed in the nut housing portion 19a to fall off from the nut housing portion 19a.

[0228] On the other hand, as described above, the other end side fixing fitting 14 is fixed to the rivet nut 19ab, and the rivet nut 19ab is provided on the mounting portion 19 that is not easily affected by the deformation as described above (refer to Figure 11 ). Therefore, it can be stably fixed. In addition, the other end side fixing fitting 14 is fixed by sandwiching the solar panel 50 up and down together with the lower side fitting 14a and the upper side fitting 14b, so that it can be fixed more stably.

[0229] For example, when a strong wind blows between the solar panel 50 and the floating board 10, a strong force is applied to lift the solar panel 50 upward. If it is only fixed by pressing the solar panel 50 from above, there is a risk of the position of the solar panel 50 shifting. However, in this embodiment, since it can be firmly fixed on the lower side and the upper side of the solar panel 50, stable fixing that suppresses the occurrence of the above-mentioned position shift can be achieved.

[0230] More specifically, as Figure 1 shown, the solar panel 50 is disposed obliquely above the floating board 10, and one end portion 51 side of the solar panel 50 is at a position away from the floating board 10 compared to the other end portion 52 side. Therefore, wind or the like can blow in from the one end portion 51 side of the solar panel 50 into the space between the solar panel 50 and the floating board 10.

[0231] On the other hand, the other end portion 52 side of the solar panel 50 is disposed on the floating board 10 with almost no gap therebetween. Therefore, the wind that blows into the space between the solar panel 50 and the floating board 10 cannot escape, and thus has an upward pushing effect on the other end portion 52 side of the solar panel 50, and an upward pushing stress is applied to the fixing fitting 14 on the other end side.

[0232] Moreover, on the upper side of the solar panel 50 is the place where the glass portion 50a of the solar panel 50 is located (refer to Figure 2 ), so the upper fitting 14b of the fixing fitting 14 on the other end side (refer to Figure 2 ) cannot fix the solar panel 50 with screws or the like. By pressing the solar panel 50 toward the lower fitting 14a of the fixing fitting 14 on the other end side (refer to Figure 2 ), it functions together with the lower fitting 14a to clamp the solar panel 50.

[0233] Therefore, due to the stress that pushes the solar panel 50 upward due to the influence of wind or the like, and the force that the solar panel 50 attempts to move upward, the gap between the upper fitting 14b and the lower fitting 14a will expand, making it difficult to stably fix the solar panel 50 with the upper fitting 14b.

[0234] On the other hand, the base 54 provided on the solar panel 50 is fixed with screws by the lower fitting 14a, so that the solar panel 50 can be fixed. Therefore, even if the solar panel 50 attempts to move upward, the fixed state of the solar panel 50 can be maintained stably.

[0235] Therefore, according to this embodiment, a stable fixed state of the solar panel 50 can be maintained.

[0236] It should be noted that in this embodiment, as Figure 2 shown, at both end positions of the floating plate 10 in the direction of the receiving portion 12 along the other end portion 52 (the other end side) of the solar panel 50, the other end portion 52 side of the solar panel 50 is respectively fixed to the floating plate 10 by the other end side fixing metal fittings 14.

[0237] In this way, although stable fixation without swinging left and right can be achieved by fixing at both ends, further, fixing at the center can achieve more stable fixation.

[0238] Incidentally, the above floating plate 10 is not used alone, but as Figure 10 shown, a large number of floating plates 10 are connected by the passage joints 60 that serve as passages during maintenance, thereby forming an assembled floating plate portion 120 (refer to Figure 14 ).

[0239] Specifically, as Figure 1 shown, on the first end portion 10a side of the floating plate 10 near the support portion 11, a pair of engaging protrusion portions 61 that engage with the passage joint 60 (refer to Figure 10 ) are formed, wherein the passage joint 60 has an engaging concave portion (not shown) that engages with the engaging protrusion portions 61 on the back side.

[0240] In addition, the floating plate 10 includes bolt holes 62a (refer to Figure 3A , Figure 3B ) through which the connecting bolts 62 for connecting the passage joint 60 pass, and the passage joint is on the second end portion 10b side of the floating plate 10 on the receiving portion 12 side near the other end portion 52 of the solar panel 50 (the other end side).

[0241] And, as Figure 10 shown, when a part of the second end portion 10b side of the floating plate 10 and a part of the first end portion 10a side are overlapped with each other, bolt holes 62b corresponding to the bolt holes 62a on the second end portion 10b side are also provided on the first end portion 10a side of the floating plate 10 (refer to Figure 1 ).

[0242] And, as Figure 10 shown, the passage joint 60 has bolt holes 63 corresponding to the bolt holes 62a and the bolt holes 62b.

[0243] Therefore, for the floating board 10 on one side, the passage joint 60 is engaged at the engaging protrusion 61 of the floating board 10 on one side, and the bolt hole 62b (refer to Figure 1 ) on the first end portion 10a side of the floating board 10 on one side, the bolt hole 62a on the second end portion 10b side of the floating board 10 on the other side, and the bolt hole 63 of the passage joint 60 are connected by the connecting bolt 62, so that a plurality of floating boards 10 are connected by the passage joint 60 to form a connected state.

[0244] It should be noted that, as Figure 10 shown, the passage joint 60 is configured as a pair of symmetrically arranged parts in the direction (refer to the W axis) orthogonal to the direction (refer to the Z axis) in which the floating boards 10 are arranged for the part connecting the floating board 10 on one side and the floating board 10 on the other side. One end 60a of the passage joint 60 on one side (refer to 60A) is connected to the floating boards 10 on the above-mentioned one side and the other side, and the other end 60b of the passage joint 60 on one side is connected to the connecting part of the floating boards 10 on one side and the other side of the other floating board 10.

[0245] In addition, the other end 60b of the other passage joint 60 configured as a pair (refer to 60B) is connected to the floating boards 10 on the above-mentioned one side and the other side, and one end 60a of the other passage joint 60 (refer to 60B) is connected to the connecting part of the floating boards 10 on one side and the other side of the other floating board 10. In this way, the floating boards 10 can be connected one by one through the passage joint 60, so as to form the collective floating board part 120 described later (refer to Figure 14 ).

[0246] The passage joint 60 is used as a part for people to walk on during maintenance and the like, so it will be loaded. If the rigidity of the floating board 10 is low, the floating board 10 will be deformed due to the load.

[0247] However, in the above-mentioned manner, not only the rigidity of the mounting part 19 of the floating board 10 of the present embodiment is improved, but also the rigidity of the floating board 10 itself is improved. Therefore, even under such a load, it is difficult to bend (deform). When a person passes through the passage joint 60, it is not easy to cause shaking and is suitable for walking, thereby improving workability.

[0248] In addition, the mounting part 19 with enhanced rigidity is not easily deformed even under load, and it is possible to avoid the deformation of the mounting part 19 fixed by the fixing metal fitting 14 on the other end side caused by maintenance and the like, and to suppress the detachment of the rivet nut 19ab (refer to Figure 11 ) provided on the mounting part 19, so as to stably fix the solar panel 50.

[0249] (Deformation example of the other end side for fixing the solar panel)

[0250] In the above description, it is described that the lower fitting 14a of the fixing fitting 14 fixed to the other end side is screwed to the base 54 provided on the solar panel 50 (refer to Figure 2 ), in a state of being screwed. Figure 2 )

[0251] However, although it is necessary to screw the lower fitting 14a to the base 54, when working on the floating board 10 placed on the water surface, there is a problem in workability in screwing the lower fitting 14a to the surface of the base 54 below the solar panel 50.

[0252] The workability can be further improved by the method described below.

[0253] Figure 11 It is a cross-sectional view for explaining a modification example of one side (the other end side) of the other end portion 52 of the solar panel 50.

[0254] More specifically, it is a cross-sectional view of a part around the mounting portion 19, which is a cross-sectional view after one of the pair of nut housing portions 19a (refer to Figure 3B ) housing the rivet nut 19ab of the mounting portion 19 where the fixing fitting 14 for the other end side is mounted is cut horizontally, showing the state where the solar panel 50 is fixed to the floating board 10 by the fixing fitting 14 for the other end side.

[0255] It should be noted that in this modification example, as the configuration on the floating board 10 side, only the configuration of the lower fitting 14a of the fixing fitting 14 for the other end side is different, and other configurations are the same as those described before.

[0256] As Figure 11 shown, a frame 55 is provided on the solar panel 50, which includes: a panel receiving portion 55a, which is provided along the outer periphery 50b of the glass portion 50a of the solar panel 50 to receive the glass portion 50a; and an engaging portion 55b, which extends from the end of the panel receiving portion 55a located on the side opposite to the glass portion 50a of the solar panel 50 toward the glass portion 50a in a substantially parallel manner and extends inward of the solar panel 50.

[0257] On the other hand, the lower fitting 14a of the fixing fitting 14 for the other end side is provided with a U-shaped hook portion 14aa, which is formed in a U-shape by folding back one end side upward at one end side of the lower fitting 14a.

[0258] Therefore, the lower metal fitting 14a is engaged with the solar panel 50 by engaging the engaging portion 55b of the hook portion 14aa that can engage with the solar panel 50 through the engagement of the hook portion 14aa.

[0259] When the lower metal fitting 14a is engaged with the solar panel 50 in this way, even if the solar panel 50 attempts to move upward due to the influence of wind or the like, the lower metal fitting 14a will not fall off.

[0260] Moreover, in this modification, screw fixation is not required, and only the hook portion 14aa needs to be engaged with the engaging portion 55b. Therefore, the workability of installing the lower metal fitting 14a on the solar panel 50 can be improved.

[0261] It should be noted that in this modification, the structure (engaging portion 55b) on the solar panel 50 side corresponding to the hook portion 14aa is provided on the frame 55 of the solar panel 50, or this structure (engaging portion 55b) can also be formed on the base 54 described above.

[0262] The above has described the structure for setting the solar panel 50 on the floating plate 10, but it should be noted that the above specific example is only an example.

[0263] For example, in the above description, the concave portion 40 is composed of frustum-shaped depressions 41, 42, 43 that gradually taper toward the surface wall 16 at both ends and the center in the direction of the support portion 11, and groove-shaped depressions 44, 45 that are connected to the frustum-shaped depressions 41, 42, 43 in the direction of the support portion 11 and become narrower toward the surface wall 16. The above has described such a case, but this is only an example of a suitable concave portion 40, and its structure is not limited thereto. For example, the shape of a part of the concave portion 40 can also be changed.

[0264] In addition, in the above description, although the width of the concave portion 40 in the direction of the support portion 11 (Z-axis direction) of the concave portion 40 is substantially the same as the width of the support portion 11, it can also be formed by arranging several concave portions with a width smaller than the width of the support portion 11 in the direction of the support portion 11.

[0265] In addition, in the above description, although a part of the bottom surface of the concave portion 40 of the back wall 17 forming the concave portion 40 is integrated with the surface wall 16, it can also be entirely integrally formed.

[0266] In addition, in the above description, although it is shown that the bases 53 and 54 are provided on a part of the outer periphery 50b of the solar panel 50, the bases may also be structures similar to the frame 55 that cover the entire outer periphery 50b.

[0267] (For the structure of the mooring floating board)

[0268] Next, a structure will be described when the solar panel 50 is not provided as a part of a passage or the like and is moored to a mooring member such as an anchor rope.

[0269] As described above, the floating board 10 of the present embodiment includes an annular floating board portion 30 having an opening 26.

[0270] Specifically, as already mentioned in the above description, the opening 26 is formed by combining the surface wall 16 and the back wall 17 corresponding to the opening 26, and the support portion 11 on the side (one end side) that supports one end portion 51 of the solar panel 50 is erected toward the surface wall 16 side in such a manner that the edge 24 connecting the inner wall surface on one end side of the opening 26 serves as a hinge to open (unfold) the opening 26.

[0271] And, as Figure 6 shown, when the support portion 11 is erected to form the opening 26, a structure is formed that allows access from the opening 26 to the area F on the back wall 17 side in the center of the floating board 10.

[0272] The area F in the center of the floating board 10 is located at the intersection of the diagonals of the four corners of the rectangular floating board 10, and is approximately at the center of gravity position.

[0273] If a mooring member such as an anchor rope is fixed at such a center of gravity position, when the floating board 10 attempts to move due to strong winds or the like, the anchoring force of the mooring member being pulled is applied to the center of gravity position that can prevent the floating board 10 from tilting and maintain its high attitude stability, so that the attitude of the floating board 10 can be prevented from deteriorating.

[0274] In addition, when a worker rides near the edge portion around the floating board 10, there may be a situation where the floating board 10 tilts and the worker falls into the water depending on the circumstances. When the worker does not ride near the edge portion around the floating board 10, it is impossible to fix a mooring member such as an anchor rope to the floating board 10, so the workability is extremely poor.

[0275] It should be noted that considering this risk of falling into the water, work can also be carried out near the edge portion around the floating board 10 using a boat or the like. In this case, since the work is carried out on the boat, the workability is not good enough.

[0276] On the other hand, as described above, the region F at the center of the floating board 10 is the center-of-gravity position with high attitude stability. Therefore, even if the staff is near this position, it is not easy for the floating board 10 to lose balance.

[0277] Therefore, if a mooring member such as an anchor rope is fixed at the region F at the center of the floating board 10, when the work of fixing the mooring member such as the anchor rope to the floating board 10 is carried out, the floating board 10 will not lose balance. Therefore, the work of fixing the mooring member such as the anchor rope to the floating board 10 is easy to carry out.

[0278] A mooring part 70 for mooring members such as a mooring anchor rope is provided in the region F approximately at the center of the floating board 10. Hereinafter, the mooring part 70 will be specifically described. As Figure 5 shown, the mooring part 70 is provided near the opening part 26 (near the other end side). More specifically, it is provided at a position adjacent to the edge part 26a of the opening part 26 that faces the erected support part 11 across the opening part 26.

[0279] And, as Figure 5 shown, the mooring part 70 is formed in such a way that the surface wall 16 is recessed toward the back wall 17. At the same time, as Figure 6 shown, the mooring part 70 is formed in such a way that the back wall 17 is also recessed toward the surface wall 16.

[0280] That is to say, the mooring part 70 is configured in such a way that the surface wall 16 and the back wall 17 are combined to improve rigidity.

[0281] Figure 12A 、 Figure 12B 、 Figure 12C are cross-sectional views along the D - D line in Figure 3B and Figure 4B The D - D line cross-sectional view of the D - D line, Figure 12A is a schematic diagram showing the state where mooring member fixing parts such as fixing eyebolts 80 are not installed, Figure 12B is a schematic diagram showing the state where mooring member fixing parts such as the fixing eyebolt 80 are installed in such a way that the loop 80a of the eyebolt 80 is located on the back wall 17 side, Figure 12C is a schematic diagram showing the state where mooring member fixing parts such as the fixing eyebolt 80 are installed in such a way that the loop 80a of the eyebolt 80 is located on the surface wall 16 side.

[0282] And, as Figure 12B and Figure 12CAs shown, the floating board 10 includes, as accessory components, a lifting eye bolt 80 having a mooring component such as a fixed anchor rope and the like, and a nut 81 that engages with a screw groove of the lifting eye bolt 80 having a body portion 80b extending from the loop 80a and provided with a screw groove at the front end. Correspondingly, the mooring portion 70 has a first through hole 71 through which the body portion 80b of the lifting eye bolt 80 passes.

[0283] In addition, as Figure 12B and Figure 12C shown, the floating board 10 includes, as accessory components, a first fixing plate 82 disposed on one side of the surface wall 16 or the back wall 17 of the mooring portion 70, a pair of first bolts 83 for fixing the first fixing plate 82 to the mooring portion 70, and a pair of first nuts 84 that engage with the first bolts 83. Correspondingly, the mooring portion 70 has a pair of second through holes 72 through which the first bolts 83 pass, provided with the first through hole 71 interposed therebetween.

[0284] Moreover, the first fixing plate 82 has three through holes 82a through which the body portion 80b of the lifting eye bolt 80 and the first bolts 83 pass, provided corresponding to the first through hole 71 and the second through holes 72.

[0285] It should be noted that, as Figure 3B , Figure 4B , Figure 5 and Figure 6 shown, the first through hole 71 and the second through holes 72 are arranged side by side along the edge portion 26a (refer to Figure 5 ) on the other end side of the opening portion 26 in the mooring portion 70.

[0286] The configuration of a mooring component such as an anchor rope using the above-described accessory components for mooring will be described below.

[0287] Figure 12B This shows a case where an anchor is sunk to the bottom of a pond or a lake, one end of a mooring component such as an anchor rope is connected to the anchor, and the other end of the mooring component is moored to the floating board 10. The loop 80a of the lifting eye bolt 80 is arranged so as to be on the back wall 17 side on the water surface side.

[0288] In this case, when the collective floating board portion 120 (refer to Figure 14 ) attempts to move due to factors such as wind, the force of the mooring component such as the anchor rope pulling the floating board 10 acts as a force pulling the lifting eye bolt 80 from the back wall 17 of the floating board 10 in the direction opposite to the surface wall 16 (the lower side of the figure).

[0289] At this time, if stress is concentrated at a local position where the lifting eye bolt 80 is located on the floating board 10, there is a possibility of damaging the resin-made floating board 10.

[0290] Therefore, if Figure 12B As shown, in the present embodiment, a first fixing plate 82 of a certain thickness is provided on the side of the surface wall 16 of the mooring portion 70, and after the main body 80b of the eye bolt 80 is arranged in a manner passing through the first fixing plate 82, the nut 81 is screwed into the front end of the main body 80b of the eye bolt 80 passing through the first fixing plate 82, thereby fixing the first fixing plate 82 on the surface wall 16 of the mooring portion 70, so that the pulling force can be dispersed to the entire mooring portion 70 through the first fixing plate 82.

[0291] It should be noted that the first fixing plate 82 is not only thick enough to directly bear the pulling force of the anchoring member such as the anchor rope, but is also preferably made of a high-strength material, for example, a metal plate can be suitably used.

[0292] However, the first fixing plate 82 may be provided as needed and is not necessarily required.

[0293] Therefore, it is possible to prevent the pulling force of the mooring member such as the anchor rope from being concentrated on a local position of the mooring portion 70, thereby preventing the mooring portion 70 from being damaged.

[0294] It should be noted that, as described in the present embodiment, by fixing the first fixing plate 82 to the mooring portion 70 with the pair of first bolts 83 and the first nuts 84 via the eye bolts 80 , the first fixing plate 82 can be fixed more stably.

[0295] On the other hand, when one end of a mooring member such as an anchor rope is not connected to an anchor on the bottom of a pond or lake, but is intended to be fixed on the land surrounding the pond or lake, in this case, it will be more convenient for the ring 80a of the eye bolt 80 to be located on the side of the surface wall 16 of the floating plate 10.

[0296] In this way, when the ring 80a of the eyebolt 80 is set to be located on the surface wall 16 side, the force of the anchoring member such as the anchor rope trying to pull and hold the floating plate 10 is applied in the opposite direction to the force described above. Figure 12C As shown, it is sufficient to set the first fixing plate 82 on the back wall 17 side of the anchoring portion 70.

[0297] In the present embodiment, the first through hole 71 provided on the mooring portion 70 through which the main body 80b of the eye bolt 80 passes has a tapered portion 71a in which the surface wall 16 is recessed in a gradually tapered shape toward the back wall 17, thereby providing a reinforcing rib structure.

[0298] Therefore, when the first fixing plate 82 is disposed on the side of the back wall 17, in order to prevent the loop 80a of the eyebolt 80 from falling into the tapered portion 71a, as an accessory part, as Figure 12C shown, there is a second fixing plate 85 provided on the surface wall 16 of the mooring portion 70 so as to cover the tapered portion 71a.

[0299] However, when a mooring member such as an anchor rope attempts to fix the floating plate 10 to the second fixing plate 85, since an excessive force is not applied to the second fixing plate 85, as Figure 12C shown, it may not have the same thickness as the first fixing plate 82.

[0300] It should be noted that this second fixing plate 85 also needs to be able to pass through the main body portion 80b of the eyebolt 80. Therefore, at a position corresponding to the first through hole 71, there is a through hole for passing through the main body portion 80b of the eyebolt 80.

[0301] In the above description, mooring members such as anchor ropes for fixing in water and on land are described according to their different fixing locations. Needless to say, mooring members such as anchor ropes for a collective floating plate portion formed by connecting a large number (a plurality) of floating plates 10 together can also be used in combination with mooring members such as anchor ropes fixed in water and on land.

[0302] That is to say, in the collective floating plate portion, in order to be able to moor stably, mooring members such as anchor ropes are connected at a plurality of positions, among which, mooring members such as anchor ropes of an anchor fixed in water are connected at several of the plurality of positions, and the remaining positions are connected to mooring members such as anchor ropes fixed on land.

[0303] Here, for example, in Patent Document 1, by providing fixing ears at the four corners of the floating plate and also providing fixing ears at the four corners of the connecting member, and connecting the fixing ears with fixing pins to assemble the floating plates together. In this case, when the collective floating plate has a rectangular shape, only the fixing ears remain at the four corners of the assembled floating plate portion, so only 4 anchor ropes can be used for connection.

[0304] In this way, when using the connection structure of the floating plate to fix mooring members such as anchor ropes, mooring members such as anchor ropes can only be moored at the part where this connection structure is used.

[0305] In contrast, in the present embodiment, in addition to the connection structure used when assembling the floating plates 10, there is also provided a mooring portion 70 for mooring mooring members such as anchor ropes. Therefore, when assembling the floating plates 10 to form a collective floating plate portion 120 (refer to Figure 14 ), as long as the floating plate 10 is used as a passage or the like, mooring members such as anchor ropes can be moored on any of the floating plates 10, so the degree of freedom in setting the anchor ropes is very high.

[0306] Also, in the case of Patent Document 1, as described above, there is a situation where the anchor ropes can only be connected at four places. Therefore, when the assembled floating plate part attempts to move, 25% of the total force is distributed to each anchor rope. When one of the anchor ropes breaks, 33% of the total force when the assembled floating plate part attempts to move is respectively applied to the remaining anchor ropes, and the probability of the anchor rope breaking immediately increases. Therefore, there is a concern about the stability of mooring.

[0307] However, according to the floating plate 10 of the present embodiment, as long as it is a floating plate 10 used for a passage or the like, mooring components such as anchor ropes can be moored on any floating plate 10. Therefore, the number of mooring components such as anchor ropes for tying and fixing the assembled floating plate part 120 (refer to Figure 14 ) can be greatly increased, so that the force acting on each mooring component can be reduced, and the probability of mooring components such as anchor ropes breaking can be significantly reduced. At the same time, even if any one of the mooring components is damaged, it is possible to avoid applying too much force to the remaining mooring components.

[0308] Therefore, it is possible to have high mooring stability for the assembled floating plate part 120 (refer to Figure 14 ).

[0309] In addition, this method also means that even if the weight of the anchor connected to one mooring component such as an anchor rope is reduced and the number of mooring components such as anchor ropes connected to the assembled floating plate part is correspondingly increased, the assembled floating plate part can be sufficiently moored.

[0310] Therefore, by reducing the weight of the anchor, when it is necessary to disassemble and remove the assembled floating plate part and the like after using the solar panel 50, the work of pulling up the anchor can be easily carried out.

[0311] It should be noted that at the mooring part 70 of the floating plate 10 for mooring mooring components such as anchor ropes, the force applied at one place can be reduced. Therefore, similar to reducing the probability of mooring components such as anchor ropes breaking, the probability of the mooring part 70 being damaged can also be significantly reduced.

[0312] In addition, a mooring part 70 is provided at the center of the floating plate 10, and it is set at a position where the floating plate 10 can maintain a stable posture without tilting even when a mooring component such as an anchor rope attempts to pull and hold the floating plate 10. Therefore, the floating plate 10 can be moored in a state with good attitude stability.

[0313] On the other hand, when the mooring part 70 is provided at the center of the floating plate 10 in this way, if there is no opening 26 leading to this position, it is difficult to carry out the work of tying and fixing mooring components such as anchor ropes to the mooring part 70 at this position.

[0314] However, in the present embodiment, since there is an opening 26 near the mooring portion 70, it is possible to simply enter the back wall 17 side of the mooring portion 70, and when the loop 80a of the mooring ring bolt 80 is provided on the back wall 17 side, it is also possible to easily perform the work of mooring components such as mooring cables to the loop 80a.

[0315] Furthermore, if a floating plate 10 without a solar panel 50 installed is provided at the center of the collective floating plate portion 120 (refer to Figure 14 ), it is also possible to simply moor components such as mooring cables to the floating plate 10.

[0316] Therefore, if the collective floating plate portion 120 (refer to Figure 14 ) is constituted by using the floating plate 10 of the present embodiment, mooring and fixing can be performed not only around the collective floating plate portion 120 but also at the center of the collective floating plate portion 120 with mooring components such as mooring cables.

[0317] The floating plate 10 of the present embodiment can also be used as a passage, etc. When used in this way, it is preferable to close the opening 26 first, and when entering the back wall 17 side of the mooring portion 70, it is preferably possible to simply open the opening 26.

[0318] It should be noted that, as will be described below, by configuring a structure that can simply open and close the opening 26, the opening 26 can be closed during normal times and used as a passage, thereby improving convenience. At the same time, when inspecting mooring components such as mooring cables, the opening 26 can be easily opened, making it possible to easily perform inspection work.

[0319] In the present embodiment, the opening 26 can be easily opened or closed. The following describes the structure that can easily open and close the opening 26.

[0320] Figure 13 It is a cross-sectional view for explaining the opening and closing mechanism of the opening 26.

[0321] Specifically, it is a cross-sectional view along the E - E line in Figure 10 . In Figure 10 , it shows the state where the one - end - side fixing fitting 13 is not installed on the support portion 11, and in Figure 13 , it shows a schematic diagram of the state where the one - end - side fixing fitting 13 is installed on the support portion 11.

[0322] As described above, the opening 26 is formed by erecting the support portion 11, and the internal shape of the opening 26 is substantially the same as the external shape of the support portion 11.

[0323] Therefore, when attempting to close the opening 26 with the support portion 11, only by applying a pressing force to the support portion 11 against the back wall 17, the support portion 11 can be simply moved past to the side of the back wall 17.

[0324] As Figure 10 and Figure 13 shown, when the support portion 11 stands up with the side 24 as a hinge so that the opening 26 (refer to Figure 5 ) is in an open state, stoppers 90 are provided near both ends of the edge portion 26a (refer to Figure 5 ) on the other end side (the side opposite to the side 24 as the hinge) of the opening 26. When the support portion 11 is in a state where the one-end-side fixing fitting 13 is mounted on the support portion 11 and the support portion 11 is laid down (lowered) to block the opening 26, the stoppers 90 receive a part (both ends) of the one-end-side fixing fitting 13.

[0325] By having such stoppers 90 on the floating plate 10, when closing the opening 26 with the support portion 11, even if a pressing force is applied to the support portion 11 toward the side of the back wall 17, the support portion 11 will not move toward the back wall 17 side.

[0326] Moreover, the one-end-side fixing fitting 13 is an accessory for fixing the solar panel 50. By simply making flexible use of this accessory, no new parts need to be added.

[0327] On the other hand, as Figure 1 shown, a finger insertion recess 91 is provided in the support portion 11. When the support portion 11 stands up toward the front wall 16, on the surface 11a of the support portion 11 facing the one end side, the finger insertion recess 91 is provided so that a finger can be inserted between the fixing portion 13b of the one-end-side fixing fitting 13 and the support portion 11.

[0328] Therefore, when standing up the support portion 11 from the laid-down state where the support portion 11 closes the opening 26 toward the front wall 16 side, only by inserting a finger between the fixing portion 13b and the support portion 11 and pulling, the support portion 11 can be stood up toward the front wall 16 side, and thus the opening 26 can be simply opened.

[0329] It should be noted that in the above description, the case where the mooring components such as the mooring ropes are moored to the floating plate 10 without the solar panel 50 installed is described. If the solar panel 50 is provided, it only makes the work of mooring the mooring components such as the mooring ropes difficult, but it does not mean that the mooring of the mooring components such as the mooring ropes cannot be carried out.

[0330] Therefore, as needed, the mooring components such as the mooring ropes can also be moored to the floating plate 10 provided with the solar panel 50.

[0331] (Floating board assembly)

[0332] Next, a floating board assembly 100 formed by using the floating board 10 and the passage joint 60 described above will be described.

[0333] Figure 14 It is a schematic diagram showing the floating board assembly 100 formed by connecting the floating boards 10 of the present embodiment.

[0334] As Figure 14 shown, the floating board assembly 100 includes a trestle 110 having a linear floating board portion formed by linearly connecting the floating boards 10, an assembled floating board portion 120 for arranging the solar panels 50 formed by connecting the floating boards 10, and a connecting floating board portion 130 formed by connecting the floating boards 10 and connecting the assembled floating board portion 120 and the trestle 110.

[0335] The trestle 110 and the connecting floating board portion 130 are composed of the floating boards 10 having the same structure as the floating boards 10 used in the assembled floating board portion 120.

[0336] Therefore, there is no need to form floating boards with different structures for the trestle 110 and the connecting floating board portion 130, so that the manufacturing cost of the floating boards for constituting the trestle 110 and the connecting floating board portion 130 can be suppressed.

[0337] It should be noted that, as Figure 14 shown, the assembled floating board 120 is only an example. As originally described, the assembled floating board portion 120 is actually formed by connecting hundreds or thousands of floating boards 10 with the passage joint 60, and a large number of solar panels 50 are arranged.

[0338] In addition, different from the assembled floating board portion 120 on which the solar panels 50 are arranged, no solar panels 50 are arranged on the trestle 110 and the connecting floating board portion 130. Therefore, there is no need to cut the three sides 21, 22, and 23 other than the side 24 (refer to Figure 3A , Figure 3B and Figure 4A , Figure 4B ) of the support portion 11 that becomes a hinge. Since such cutting work is not required, it is possible to prevent the support portion 11 from falling to the side of the back wall 17. As described in the explanation with reference to Figure 13 , there is no need to install fixing metal fittings 13, etc. Since the support portion 11 does not tilt, it is convenient to walk, and the time spent on cutting and installing the fixing metal fittings 13 can be saved.

[0339] Hereinafter, each part (trestle 110, assembled floating board portion 120, and connecting floating board portion 130) of the floating board assembly 100 will be described in detail.

[0340] The collective floating plate part 120 is the part where the solar panels 50 are arranged on the floating plate assembly 100. As Figure 14 shown, by arranging the solar panels 50 on a part of the floating plates 10, for example, a path is formed around or across the center of the collective floating plate part 120.

[0341] This path is for the staff to walk on during maintenance and the like, and is also a place for laying cables from each solar panel 50.

[0342] On the other hand, in order to be able to lay the cable on land, a trestle 110 with a linear floating plate part formed by linearly connecting the floating plates 10 is arranged on the floating plate assembly 100 of the present embodiment.

[0343] It should be noted that in Figure 14 , the case of using the trestle 110 with a linear linear floating plate part is shown. Here, the trestle 110 can also be set in any form according to needs and is not necessarily linear. For example, it can be a trestle with an L-shaped linear floating plate part, etc.

[0344] The connecting part between the trestle 110 and the collective floating plate part 120 is prone to stress and potential damage when the floating plate assembly 100 tries to move due to wind or the like. Therefore, they should not be directly connected, but are connected through a connecting floating plate part 130 between the collective floating plate part 120 and the trestle 110.

[0345] Specifically, the connecting floating plate part 130 has more floating plates 10 in the width direction than the number of floating plates 10 in the width direction of the trestle 110, and is less than the number of floating plates 10 on the side 121 of the collective floating plate part 120 connected by the connecting floating plate part 130. Therefore, it can play a role in strengthening the rigidity of the connecting part and dispersing stress.

[0346] It should be noted that in the present embodiment, only the connecting floating plate part 130 with only 1 row (or 1 section) of floating plates 10 connected in the width direction is shown. The connecting floating plate part 130 can also be composed of multiple sections of floating plates 10 connected in the width direction.

[0347] In this case, the connecting floating plate part 130 is configured such that the number of floating plates 10 in the width direction increases from the trestle 110 side to the collective floating plate part 120 side for each section, which is preferable from the perspective of stress dispersion.

[0348] If the floating plate assembly 100 is configured in this way, its trestle 110 is arranged from the solar panel 50 collective floating plate part 120 towards the land direction. Therefore, cables can be laid on the trestle 110, making it extremely easy to carry out work such as cable maintenance.

[0349] Moreover, different from laying underwater, there is no need to let the cable droop down to the bottom of the water, so the length of the necessary cable can be shortened.

[0350] Incidentally, if the trestle 110 is connected to the east side and the west side of the collective floating plate part 120, when affected by strong winds and waves, strong stress may occur between the collective floating plate part 120 and the trestle 110 (at the position of the connecting floating plate part 130). Therefore, as a method of setting the floating plate assembly 100, it is preferable to connect the trestle 110 to the collective floating plate part 120 in such a way that the trestle 110 is located on the north side or the south side.

[0351] On the other hand, as Figure 14 shown, the floating plate assembly 100 is only an example, and it can also be the floating plate assembly 100 as Figure 15 shown.

[0352] Figure 15 is a schematic diagram showing another example of the floating plate assembly 100.

[0353] In the floating plate assembly 100 as Figure 15 shown, the connecting floating plate part 130 is omitted, and the trestle 110 is directly connected to the floating plate 10 of the collective floating plate part 120 at the base end part of the trestle 110 on the side of the collective floating plate part 120.

[0354] In this case, in such a way that stress can be applied to the connection part between the collective floating plate part 120 and the trestle 110, the trestle 110 has a plurality of linearly arranged floating plate parts (for example, more than 3) placed side by side, and the adjacent linearly arranged floating plate parts can be connected by the passage joint 60.

[0355] And when laying a cable on the trestle 110, it is preferable to set the central side of the trestle 110 to be capable of laying the cable, and the ends of the trestle 110 are used as passages, so that the cable falling into the water can be suppressed.

[0356] In addition, if the cable is laid along the edge of either side of the trestle 110, the balance of the trestle 110 will become poor, and the trestle 110 may tilt towards the side where the cable is laid. Therefore, by laying a heavy cable in the center of the trestle 110, the above-mentioned tilting condition can be avoided, and at the same time, a trestle that is convenient for people such as workers to walk on can be formed.

[0357] It should be noted that there is also a case of the floating plate assembly 100 having the connecting floating plate part 130 as Figure 14 shown, and the trestle 110 is as Figure 15As shown, a plurality of linear floating plate portions are arranged side by side (for example, three or more).

[0358] Incidentally, the cable CA from the solar panel 50 (refer to Figure 17 ), if schematically represented as an example, can be laid in the manner of the solid line 140 as shown in Figure 16 .

[0359] On the other hand, there is a case where the cable CA is laid as shown by the dotted line 145 in Figure 16 (refer to Figure 17 ). In this case, how to pass through the other end portion 52 of the solar panel 50 (refer to Figure 1 and Figure 2 ) side is a problem.

[0360] As shown in the description with reference to Figure 17 , the laying of the cable CA shown by the dotted line 145 in Figure 16 on the floating plate 10 is preferably arranged in a structure that enables easy laying work. Figure 17

[0361] Figure 17 is for explaining that when laying the cable CA in the form of the dotted line 145 shown in Figure 16 (refer to Figure 17 ), it is a schematic diagram of a modified example of the floating plate 10 having a structure suitable for the laying method of the cable CA (refer to Figure 17 ).

[0362] It should be noted that Figure 17 represents the state before the solar panel 50 is set on the floating plate 10 on the left side, and is represented by a double-dotted line when the solar panel 50 is set.

[0363] In the modified example of the floating plate 10 as shown in Figure , the depth of a pair of groove portions 35 on the central side of the groove portion 35 as shown in ​ , ​ is made to be the depth as shown in ​ , and the receiving portion 12 on the other end portion 52 side for receiving the other end portion 52 of the solar panel 50 is set such that the groove portion 35 extends on the other end portion 52 side to form a passage for the cable CA.

[0364] In this way, as schematically shown in ​ , the cable CA of the solar panel 50 arranged on the floating plate 10 on the right side can be wired in such a way as to pass under the solar panel 50 of the floating plate 10 arranged on the left side, and can simply correspond to the laying of the cable CA shown by the dotted line 145 in ​ .

[0365] In the case of laying such as the dotted line 145, except for the part of the cable CA laid outside the passage joint 60, it is located under the solar panel 50 and is difficult to be exposed to rain or the like. Therefore, the effect of suppressing the deterioration of the cable CA can be obtained.

[0366] In addition, since it can be ensured that it passes on the floating plate 10, the situation where the cable CA falls into the water can be avoided.

[0367] As described above, the present invention has been described based on specific embodiments, but the present invention is not limited to the embodiments.

[0368] For example, devices other than the solar panel 50 can also be provided on the collective floating plate portion 120. For example, a machine similar to a power conditioner that connects the cable CA from the solar panel 50 can also be provided, and a cable is laid from this power conditioner to the land.

[0369] In addition, the jetty 110 can be provided only near the land instead of being directly fixed to the land.

[0370] In this way, when the collective floating plate portion 120 attempts to move, it can move in the same way, thereby being able to suppress damage to the jetty 110.

[0371] However, in the case where the jetty 110 is not fixed to the land in this way, since the windward areas and weights of the jetty 110 and the collective floating plate portion 120 are different, there may be a situation where the moving methods of the jetty 110 and the collective floating plate portion 120 themselves are different. Therefore, it is preferable to configure it into a structure that can suppress the breakage of the above-mentioned jetty 110.

[0372] In addition, on the contrary, when the jetty 110 is set to a state where it can move freely, the connecting portion connected to the collective floating plate portion 120 is likely to be stressed. Therefore, the jetty 110 should be moored in an appropriate position, and it is preferable to moor mooring members such as anchor ropes on the floating plate 10 for the jetty 110 as well.

[0373] In the above description, it has been explained that the cutting process for the three sides 21, 22, and 23 other than the side 24 as a hinge for standing up the support portion 11 on the floating plate 10 of the jetty 110 is not required. However, the opening 26 is necessary when mooring mooring members such as anchor ropes on the floating plate 10.

[0374] Therefore, as described above, when mooring mooring members such as anchor ropes on the floating plate 10 of the jetty 100, only the floating plate 10 for mooring and fixing the mooring members such as anchor ropes in the floating plate 10 for the jetty 110 needs to be subjected to the cutting process for the three sides 21, 22, and 23.

[0375] Furthermore, in order to facilitate walking except for the mooring operation, it is preferable that the opening 26 formed by standing up the support portion 11 is in a closed state.

[0376] Therefore, on the floating board 10 of the pier 100 to which the mooring members such as the anchor rope are moored, at normal times, as shown in FIG. ​ As described above, the support portion 11 is provided with the fixing metal fitting 13 so that the opening 26 can be closed so that the support portion 11 does not fall off toward the back wall 17 side.

[0377] (Rotation of the floating plate)

[0378] Incidentally, the passage joint 60 is coupled to the floating plate 10 on the upper surface of each floating plate 10 , and the floating plates 10 are coupled to each other at a predetermined interval in the connection direction of the passage joint 60 , thereby forming a predetermined gap between the adjacent floating plates 10 .

[0379] On the other hand, the connection in the direction perpendicular to the connection direction of the passage joint 60 is formed by the connection between the eave-shaped ends of each floating plate 10. When the floating plate 10 floats, the eave-shaped ends are separated from the water surface, so in this direction (the direction perpendicular to the connection direction of the passage joint 60), a gap is formed between each floating plate 10.

[0380] In the floating plate assembly 100 having the above-mentioned structure, the floating plates 10 are connected in a predetermined connection direction by the passage joint 60 formed as a plastic molded body, and the eave-shaped ends of the floating plates 10 are connected to each other in a direction perpendicular to the predetermined connection direction, and any interval is kept at a constant interval (unchanged). Therefore, the resistance to water is always kept small.

[0381] In addition, in the floating plate assembly 100, since the floating plates 10 are connected to each other through the passage joints 60, the intervals between the floating plates 10 can be increased. When the intervals between the floating plates 10 are increased, the floating plate assembly 100 is not easily affected by waves, and unnecessary movement from the floating position can be prevented. Usually, the floating plate assembly 100 is anchored or connected to the land so that it will not move due to waves. Considering the changes in water levels before and after the high and low tides and rainy days, a backlash is provided at the tethering and fixing position. When the floating plate assembly 100 is moved due to the influence of waves, etc. due to this backlash, it cannot move as planned when tracking the sun, and it is difficult to improve the power generation efficiency. By increasing the intervals between the floating plates 10, the floating plate assembly 100 is not easily affected by the flow of water caused by waves, etc., and unnecessary movement will not occur.

[0382] That is to say, the above-mentioned floating plate assembly 100 as a modification example can track the sun well. The floating plate assembly 100 floats on the water surface. For example, compared with the case of being set on the ground, it only needs a very small force to rotate it, so that it can track the sun. It should be noted that the rotation mentioned here is rotation in a broad sense, and also includes the rotation that changes the direction of the floating plate assembly 100. In addition, there is no limitation on the rotation angle, as long as it can effectively receive sunlight (the maximum can be 180 degrees). In addition, its rotation is carried out during the day, without sudden movement, and it can move moment by moment or at fixed times. Therefore, the wave-making resistance can be made so small that it can be ignored.

[0383] In addition, gaps are formed between each connected floating plate 10, and water can pass through them. Therefore, when the floating plate assembly 100 is rotated, the resistance of water can be weakened, so that it can be rotated with a smaller force.

[0384] ​ It is a schematic diagram showing an example of the connection of the towing ropes for rotating the floating plate assembly 100 involved in the modification example. Since the floating plate assembly 100 floats in water and has very little resistance to water, the rotation operation can be completed with a very small force.

[0385] For example, ​ It shows an example in which towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating plate assembly 100, and the towing ropes 101, 102 and the towing ropes 103, 104 cross each other on the long side. In this case, when pulling the towing ropes 101 and 103, the floating plate assembly 100 can be rotated clockwise. When pulling the towing ropes 102 and 104, the floating plate assembly 100 can be rotated counterclockwise. For example, if the upper long side in the figure faces north and the lower long side faces south, the floating plate assembly 100 can be rotated by operating the towing ropes 101 to 104, so that the solar panel 50 can follow the sun.

[0386] ​ It shows an example in which towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating plate assembly 100, and the towing ropes 101, 102 and the towing ropes 103, 104 cross each other on the short side. When pulling the towing ropes 101 and 103, the floating plate assembly 100 can be rotated counterclockwise. When pulling the towing ropes 102 and 104, the floating plate assembly 100 can be rotated clockwise.

[0387] ​This shows an example where towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating board assembly 100. While pulling the towing ropes 101 and 102 on the long side at one end in opposite directions, the towing ropes 103 and 104 on the long side at the other end are crossed. By pulling the towing rope 101 and the towing rope 104, the floating board assembly 100 can be rotated counterclockwise. When pulling the towing rope 102 and the towing rope 3, the floating board assembly 100 can be rotated clockwise.

[0388] ​ and ​ This shows an example where the towing ropes are connected to three positions of the floating board assembly 100. ​ This shows an example where the towing rope 101 is connected to the center of one long side of the rectangular floating board assembly 100, and the towing ropes 102 and 103 are cross-connected to the two ends of the other long side. ​ This shows an example where the towing rope 101 is connected to the center of one long side of the rectangular floating board assembly 100, the towing ropes 102 and 103 are connected to the two ends of the other long side, and they are pulled in the direction opposite to the towing rope 101. In either case, with the towing rope 101 connected to the center of the long side as the center, by pulling either of the towing ropes 102 and 103, the floating board assembly 100 can be rotated clockwise or counterclockwise with the towing rope 101 connected to the center of the long side as the center.

[0389] For the solar power generation device of this embodiment, only by using the towing ropes to pull the floating board assembly 100 with low water resistance can it follow the sun. As the device for following the sun, it is only the towing ropes and the driving device for pulling the towing ropes. Since the force required for rotation is very small, the driving device can be minimized. Therefore, there is no need to make the device large-sized, a simple configuration can be achieved, and the equipment investment can be minimized. In addition, since the force necessary for following the sun is very small, the power consumption can also be minimized. Coupled with the improvement of the power generation efficiency by following the sun, the power generation efficiency can be substantially increased significantly.

[0390] As described above, according to the present embodiment, it is possible to provide a resin floating plate for a solar panel that suppresses expansion and contraction, a resin floating plate for a solar panel that can stably fix a solar panel, and a manufacturing method of such a floating plate. When forming the collective floating plate portion, it is possible to make it a collective floating plate portion with a high degree of freedom in the position of fixing mooring members such as anchor ropes. In addition, it is possible to provide a resin floating plate for a solar panel with a collective floating plate portion that can be stably fixed, and a floating plate assembly that can shorten the laying of cables and can reduce the time required for maintenance inspections and the like.

[0391] Although various embodiments of the present invention have been described, they are presented as examples and do not limit the scope of the present invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the present invention. Such embodiments and their modifications are included in the scope and gist of the present invention, and are also included in the invention described in the scope of the claims of the present invention and its equivalent scope.

[0392] Symbol Explanation

[0393] 10 Floating plate

[0394] 10a First end

[0395] 10b Second end

[0396] 11 Support portion

[0397] 11a Surface

[0398] 12 Receiving portion

[0399] 13 Fixed fitting on one end side

[0400] 13a Clamping portion

[0401] 13b Fixing portion

[0402] 13c Screw

[0403] 14 Fixed fitting on the other end side

[0404] 14a Lower fitting

[0405] 14aa Hook portion

[0406] 14b Upper fitting

[0407] 15 Side wall portion

[0408] 16 Surface wall

[0409] 17 Back wall

[0410] 18 Inclined part

[0411] 19 Mounting part

[0412] 19a Nut receiving part

[0413] 19aa Bottom

[0414] 19ab Rivet nut

[0415] 19ac Screw

[0416] 19b Peripheral wall part

[0417] 19c First concave part

[0418] 19d Bottom

[0419] 19e Second concave part

[0420] 19ea Bottom

[0421] 19f Concave part

[0422] 21, 22, 23, 24 Side

[0423] 22a Bearing rib

[0424] 25 Inner wall surface

[0425] 26 Opening part

[0426] 26a Edge part

[0427] 30 Annular floating plate part

[0428] 35 Groove part

[0429] 40 Concave part

[0430] 41, 42, 43 Frustum-shaped depression

[0431] 44, 45 Groove-shaped depression

[0432] 50 Solar panel

[0433] 50a Glass part

[0434] 50b Outer periphery

[0435] 51 One end part

[0436] 52 The other end part

[0437] 53 Base

[0438] 54 Base

[0439] 55 Frame

[0440] 55a Panel receiving part

[0441] 55b Engaging part

[0442] 60 Passage joint

[0443] 60a One end

[0444] 60b The other end

[0445] 61 Engaging protrusion

[0446] 62 Connecting bolt

[0447] 62a Bolt hole

[0448] 62b Bolt hole

[0449] 63 Bolt hole

[0450] 70 Mooring part

[0451] 71 First through hole

[0452] 71a Tapered part

[0453] 72 Second through hole

[0454] 80 Eye bolt

[0455] 80a Ring

[0456] 80b Body part

[0457] 81 Nut

[0458] 82 First fixing plate

[0459] 82a Through hole

[0460] 83 First bolt

[0461] 84 First nut

[0462] 85 Second fixing plate

[0463] 90 Stopping part

[0464] 91 Finger insertion recess

[0465] 100 Floating plate assembly

[0466] 101 - 104 Towing ropes

[0467] 110 Jetty

[0468] 120 Aggregate floating plate part

[0469] 121 Edge

[0470] 130 Connecting floating plate part

[0471] CA Cable

[0472] F Area

[0473] PL parting line

Claims

1. A floating panel assembly, which is formed by connecting floating panels for solar panels, characterized in that, Comprising: A trestle having a linear floating plate portion formed by linearly connecting the floating plates; And An assembled floating plate portion formed by connecting the floating plates for arranging solar panels, The floating plate includes: an annular floating plate portion having a hollow structure; and a support portion for supporting the solar panel on the floating plate, The annular floating plate portion and the support portion of the floating plate constituting the trestle have the same structure as the annular floating plate portion and the support portion of the floating plate constituting the assembled floating plate portion, The floating plate at the base end portion of the trestle is directly connected to the floating plate of the assembled floating plate portion, Among the floating plates for arranging the solar panels in the assembled floating plate portion, three sides other than one side at one end around the support portion are cut off, and with the one side at one end as a hinge, the support portion is erected to support the solar panel, The support portion is connected to the annular floating plate portion through the hinge, Among the floating plates constituting the trestle, there are floating plates in which the periphery of the support portion is not cut off.

2. The floating plate assembly according to claim 1, wherein, In the trestle and the assembled floating plate portion, the connected floating plates are connected in such a manner that a part of each floating plate overlaps.

3. A floating plate assembly formed by connecting floating plates for solar panels, characterized in that, Comprising: A trestle having a linear floating plate portion formed by linearly connecting the floating plates; An assembled floating plate portion formed by connecting the floating plates for arranging solar panels; and A connecting floating plate portion formed by connecting the floating plates for connecting between the assembled floating plate portion and the trestle, The floating plate includes: an annular floating plate portion having a hollow structure; and a support portion for supporting the solar panel on the floating plate, The annular floating plate portion and the support portion of the floating plate constituting the trestle have the same structure as the annular floating plate portion and the support portion of the floating plate constituting the connecting floating plate portion, The number of floating plates in the width direction of the connecting floating plate portion is more than the number of floating plates in the width direction of the trestle and less than the number of floating plates at the side of the assembled floating plate portion connected by the connecting floating plate portion, Among the floating plates for arranging the solar panels in the assembled floating plate portion, three sides other than one side at one end around the support portion are cut off, and with the one side at one end as a hinge, the support portion is erected to support the solar panel, The support portion is connected to the annular floating plate portion through the hinge, Among the floating plates constituting the trestle, there are floating plates in which the periphery of the support portion is not cut off.

4. The floating board assembly according to claim 3, wherein, The number of floating plates in the width direction of the connecting floating plate portion increases from the trestle side towards the assembled floating plate portion side.

5. The floating plate assembly according to any one of claims 1, 3, and 4, characterized in that, The trestle has a plurality of the linear floating plate portions arranged side by side, Adjacent linear floating plate portions are connected by a passage joint.

6. The floating board assembly according to claim 5, wherein The trestle has three or more linear floating plate portions.

7. A method for setting up a floating board assembly, the floating board assembly comprising: An assembled floating plate portion formed by connecting floating plates for solar panels for arranging solar panels; and a trestle having a linear floating plate portion formed by linearly connecting the floating plates, wherein the setting method is characterized in that the trestle is connected to the collective floating plate portion in such a manner that the trestle is located on the north side or the south side, the solar panels are arranged on the collective floating plate portion in such a manner that they slope downward in a direction from the north side toward the south side or from the south side toward the north side, the floating plate includes: an annular floating plate portion having a hollow structure; and a support portion for supporting the solar panel on the floating plate, in the floating plate on which the solar panel is arranged in the collective floating plate portion, three sides other than one end side edge around the support portion are cut, and the support portion is erected with the one end side edge as a hinge to support the solar panel, the annular floating plate portion and the support portion of the floating plate constituting the trestle have the same structure as the annular floating plate portion and the support portion of the floating plate constituting the collective floating plate portion, the support portion is connected to the annular floating plate portion through the hinge, in the floating plate constituting the trestle, there is included a floating plate in which the periphery of the support portion is not cut.

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