Floating plate, floating plate assembly, and method for installing floating plate assembly

Abstract

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

Description

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

[0002] In addition, this divisional application is a divisional application filed in response to the unity problem raised in the first examination opinion notice of another divisional application of the original application (application number 202111223942.2, invention title "Floating Plate, Floating Plate Aggregate, and Method for Installing Floating Plate Aggregate"). Technical Field

[0003] 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

[0004] In solar power generation that converts sunlight into electricity, solar panels (also referred to as solar cell panels, solar cell modules) are used.

[0005] 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.

[0006] 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).

[0007] Prior Art Documents Patent Documents Patent Document 1: Japanese Patent Application Laid-Open No. 2014-511043 Patent Document 2: Japanese Patent Application Laid-Open No. 2015-217771 Summary of the Invention Problems to be Solved by the Invention (First Aspect) 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.

[0008] 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 is a situation where the gas inside the floating plate expands due to sunlight.

[0009] When this happens, as the gas inside the floating plate expands, the floating plate itself also expands.

[0010] On the other hand, at night, since the expanded gas contracts as the temperature drops, the expanded floating plate also contracts accordingly.

[0011] It should be noted that in the long term, the temperature difference between summer and winter and other effects will also cause the floating plate to expand and contract.

[0012] 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 its installation part is increased, or there are installation metal fittings for installation, etc., it is a part with higher rigidity compared to other parts, so its followability to the expansion and contraction of the floating plate is poor.

[0013] Therefore, stress and the like are more likely to concentrate in the part where the solar panel is installed, and deformation and loosening of the installation will occur in the part where the solar panel is installed.

[0014] 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.

[0015] (Second aspect) In Patent Document 1, when fixing a solar panel on a floating plate, an elastomer fixing profile is used.

[0016] On this fixing profile, there is a groove for clamping the frame of the solar panel, and the edge of the frame is elastically clamped by inserting it into the groove.

[0017] On the other hand, for example, when the floating plate is in a state of 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 carrying out operations such as setting and maintaining the solar panel, workers need to step on the floating plate, and in this case, the floating plate will bend and so on.

[0018] 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.

[0019] In addition, there will 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.

[0020] Therefore, it is desired to have a floating plate that can fix the solar panel more stably.

[0021] In the second 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 stably fix a solar panel, and a manufacturing method of such a floating plate.

[0022] (Third aspect) 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.

[0023] In this case, when considering tying the anchor rope to the fixing ear to prevent the assembled floating plate portion from moving 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.

[0024] 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 connected to the anchor rope, and this force increases as the number of assembled floating plates increases and the assembled floating plate portion becomes larger.

[0025] 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 assembled floating plates 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 connected to the anchor rope and the anchor rope.

[0026] Moreover, in a state where the anchor rope can only be tied and fixed at the four corners of the assembled floating plate portion, when breakage occurs at two of the anchor ropes or the fixing ears connected to the anchor ropes, it becomes difficult to tie the assembled floating plate portion to the fixed position.

[0027] Here, when pulling the assembled floating plate portion at four places, each place bears 25% of all the force required for pulling. When one of the places is damaged and becomes three places, each place needs to bear 33% of all the force required for pulling. Therefore, the force applied to the anchor rope and the fixing ear connected to the anchor rope increases.

[0028] Therefore, once breakage occurs at one place of the anchor rope and the fixing ear connected to the anchor rope and becomes three positions, the probability of breakage of the remaining anchor rope and the fixing ear connected to the anchor rope will increase significantly, making the fixing of the assembled floating plate portion unstable. Therefore, it is expected that the assembled floating plate portion can be tied and fixed more stably.

[0029] 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.

[0030] Therefore, it is expected that there is a high degree of freedom for the portion connected to the anchor rope on the assembled floating plate portion.

[0031] In the third aspect of the present invention, in view of the above situation, an object is to provide a resin float for a solar panel, which can be formed into an assembled float part with a high degree of freedom in the position for tying mooring components such as mooring ropes, or can be formed into an assembled float part that can be stably tied.

[0032] (Fourth aspect) The electric power generated by the solar panel is not used for consumption on the water surface such as ponds and lakes. Therefore, it is necessary to connect the solar panel installed on the water surface to the facilities on land (power storage facilities and power transmission facilities) using an electric power cable (hereinafter simply referred to as a cable).

[0033] In this case, a method of laying the cable from the side of the solar panel installed on the water surface to the land along the bottom surface of the pond and lake can be considered.

[0034] It should be noted that laying in this way, like laying a submarine cable, is to avoid damage to the cable due to long-term deterioration caused by the self-weight of the cable.

[0035] However, in this case, compared with the case of laying the cable in a straight line connection from the solar panel installed on the water surface to the land facilities, there is a problem that the length of the cable will become longer.

[0036] 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.

[0037] In the fourth aspect of the present invention, in view of the above situation, an object is to provide an assembled float that can shorten the laid cable and can reduce the time for maintenance and inspection.

[0038] (Fifth aspect) 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 significantly 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, a large amount of electric power is consumed to track the sun, so there is a problem that the power generation efficiency cannot be comprehensively improved.

[0039] The present invention is proposed in view of such prior art, and an 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 electric power consumed to track the sun.

[0040] Technical solutions for solving the problems According to a first aspect of the present invention, there is provided a floating plate made of resin for a solar panel, characterized by comprising: 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 a back wall thereof is recessed toward a 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.

[0041] According to a first aspect of the present invention, it is possible to provide a resin floating plate for a solar panel that suppresses expansion and contraction.

[0042] Next, various embodiments of the present invention will be illustrated by way of example. The embodiments described below can be combined with each other.

[0043] Preferably, it is characterized by comprising 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 erected support portion with the opening portion therebetween.

[0044] 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 a direction along the support portion; and a groove-shaped depression that is connected to the frustum-shaped depression in a 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 a 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.

[0045] Preferably, it is characterized in that the front wall includes: an inclined portion that is provided from a position substantially at an end above the concave portion on a side opposite to the opening portion so as to approach the back wall side toward a side away from the concave portion; and a receiving portion that is provided in a manner of standing up from an end of the inclined portion on a side opposite to the concave portion side and can receive an end portion of the solar panel.

[0046] Preferably, it is characterized in that a groove portion is provided at least from a position above the concave portion to between the inclined portions of the front wall, and the groove portion is open such that a front end on the inclined portion side of the groove portion has almost no height difference from the inclined portion.

[0047] 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 in that it includes: a fixing 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 for mounting the fixing fitting on the other end side; the fixing fitting on the other end side at least includes a lower side fitting, one end side of the lower side fitting is arranged on the lower side of the solar panel, and the other end side is fixed to the mounting portion, and the lower side fitting is engaged or fixed to the solar panel.

[0048] 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.

[0049] Hereinafter, various embodiments of the present invention will be illustrated by way of example. The embodiments described below can be combined with each other.

[0050] Preferably, the floating plate is characterized in that it includes: a screw for fixing the fixing fitting on the other end side to the mounting portion, the fixing fitting on the other end side includes an upper side fitting, one end side of the upper side fitting is arranged on the upper side of the solar panel, and the other end side is fixed to the mounting portion, and the upper side fitting is clamped together with the lower side fitting in such a way that one end side presses the solar panel against the lower side fitting side, and the other end side of the upper side fitting and the other end side of the lower side fitting are commonly fixed to the mounting portion by the screw.

[0051] Preferably, the floating plate is characterized in that the lower side fitting is provided with a U-shaped hook portion at one end side, and the lower side fitting can be engaged with the solar panel by engaging the hook portion with an engaging portion capable of engaging with the hook portion provided on the solar panel.

[0052] Preferably, a floating plate, which is a resin floating plate for a solar panel, is characterized in that it includes: a receiving portion, which is provided on the other end side for receiving the other end side of the solar panel; and a mounting portion, which is provided on the other end side near the receiving portion for mounting and fixing the fixing fitting on the other end side of the solar panel; the mounting portion includes: a first concave portion, the back wall of which is recessed toward the front wall side and has a peripheral wall portion; and a nut receiving portion, the front wall of which is recessed toward the back wall side for receiving a fixing nut, and the bottom as the back wall side of the nut receiving portion and the bottom as the front wall side of the first concave portion are integrated.

[0053] Preferably, the floating board is characterized in that it includes: an inclined portion provided near the other end side and facing the back wall side from one end side to the other end side of the surface wall, and the receiving portion is a standing wall portion where the surface wall stands up from the end portion on the other end side of the inclined portion in a direction away from the back wall, and a portion of the peripheral wall portion of the first concave portion located on the standing wall side is integrated with the standing wall portion.

[0054] Preferably, the floating board is characterized in that the mounting portion includes: a pair of nut receiving portions provided at intervals in a direction along the receiving portion; and a second concave portion recessed further toward the surface wall side from the bottom surface of the first concave portion at a position between the nut receiving portions in a direction along the receiving portion on the other end side of the straight line connecting the nut receiving portions, wherein the bottom portion on the surface wall side of the second concave portion is integrated with the surface wall.

[0055] Preferably, the floating board is characterized in that a plurality of the mounting portions are provided in a direction along the receiving portion.

[0056] Preferably, the floating board is characterized in that the mounting portion includes: an insert nut (embedded nut) fixed in the nut receiving portion; a screw screwed with the insert nut and fixing the other end side fixing fitting; and the other end side fixing fitting fixing the solar panel screwed and fixed by the screw; the other end side fixing fitting is composed of a lower side fitting with one end side disposed under the solar panel and an upper side fitting with one end side disposed above the solar panel, and the other end sides of the lower side fitting and the upper side fitting can be simultaneously fixed to the insert nut by the screw, so that the lower side and the upper side of the solar panel can be fixed.

[0057] Preferably, the floating board is characterized in that the upper side fitting presses the solar panel toward the lower side fitting side with one end side, and together with the lower side fitting clamps the solar panel. A U-shaped hook portion is provided at one end side of the lower side fitting, and the lower side fitting is fixed to the solar panel by engaging the hook portion at an engaging portion capable of engaging the hook portion provided on the solar panel.

[0058] Preferably, the floating plate is characterized by comprising: 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, and the sides other than the side at one end side of the support portion are cut off so that the side at one end side can be erected toward the front wall side as a hinge to form an opening; 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 the one end side in the erected state of the support portion; and a clamping portion that is designed to extend from the fixing portion in a direction substantially orthogonal to the fixing portion and clamp 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.

[0059] Preferably, there is provided a method for manufacturing a resin floating plate for a solar panel, the resin floating plate for a solar panel including 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 method for manufacturing the resin floating plate 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 side and houses a fixing nut, with 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 side.

[0060] According to the third 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 comprising: an annular floating plate 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.

[0061] According to the third aspect of the present invention, there is provided a floating plate, which is a resin floating plate 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 where mooring members such as fixing anchor ropes can be formed can be formed, and in addition, the assembled floating plate portion can be moored and fixed stably.

[0062] Next, various embodiments of the present invention will be illustrated by way of example. The embodiments described below can be combined with each other.

[0063] Preferably, the floating plate includes a support portion, which is formed by combining a surface wall and a back wall corresponding to the opening portion, and stands up toward the surface wall side in such a manner that the opening portion is opened with the edge connected to the inner wall surface on one end side of the opening portion as a hinge, and supports one end side of the solar panel. The mooring portion is provided near the other end side of the opening portion.

[0064] Preferably, the floating plate includes: a one-end-side fixing fitting, which is installed on the side opposite to the hinge of the support portion and clamps one end side of the solar panel together with the support portion; and a stopper portion, which is provided near both ends of the edge portion on the other end side of the opening portion, and receives a part of the one-end-side fixing fitting when the support portion is laid down in such a manner as to block the opening portion in a state where the one-end-side fixing fitting is installed on the support portion.

[0065] Preferably, the one-end-side fixing fitting includes: a fixing portion, which is 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, which is provided 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; 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.

[0066] Preferably, the mooring portion is provided at approximately the center of the floating plate.

[0067] Preferably, the floating plate includes: a ring bolt for fixing the mooring member; and a nut screwed with the ring bolt; the mooring portion has a first through hole through which the ring bolt passes.

[0068] Preferably, the floating plate includes: a first fixing plate disposed on the surface wall side or the back wall side of the mooring portion; a pair of first bolts for fixing the first fixing plate; and a pair of first nuts screwed with the first bolts; the mooring portion has a pair of second through holes through which the first bolts pass, with the first through hole interposed therebetween; the first fixing plate is provided corresponding to the first through hole and the second through holes, and has a through hole through which the ring bolt and the first bolts pass; the first through hole and the second through holes are arranged side by side on the mooring portion in a direction along the edge portion on the other end side of the opening portion.

[0069] Preferably, it is characterized in that the first through hole has a tapered portion, which is formed by recessing the surface wall toward the back wall side with a gradually tapering front end, and includes a second fixing plate, which is provided on the surface wall of the mooring portion in a manner covering the tapered portion when the first fixing plate is arranged on the back wall side, the second fixing plate is arranged corresponding to the first through hole, and has a through hole for a lifting eye bolt to pass through.

[0070] According to a fourth aspect of the present invention, there is provided a floating plate assembly formed by connecting floating plates for solar panels, which is characterized in that it includes: 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; the floating plate at the base end portion of the trestle is directly connected to the floating plate of the assembled floating plate portion.

[0071] According to a fourth aspect of the present invention, there is provided a floating plate assembly that can shorten the length of the laid cable and can reduce the time spent on maintenance inspections and the like.

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

[0073] Preferably, a floating plate assembly formed by connecting floating plates for solar panels, which is characterized in that it includes: 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 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 on the side of the assembled floating plate portion connected by the connecting floating plate portion.

[0074] Preferably, it is characterized in that the number of floating plates in the width direction of the connecting floating plate portion increases from the trestle side toward the assembled floating plate portion side.

[0075] Preferably, it is characterized in that the trestle has a plurality of the linear floating plate portions arranged side by side, and adjacent linear floating plate portions are connected by a passage joint.

[0076] Preferably, it is characterized in that the trestle has three or more of the linear floating plate portions.

[0077] Preferably, a method for setting a floating board assembly is provided. The floating board assembly includes: an assembled floating board part formed by connecting floating boards for solar panels and used to arrange solar panels; and a trestle having a linear floating board part formed by linearly connecting the floating boards. The feature of the setting method is that the trestle is connected to the assembled floating board part with the trestle located on the north side or the south side. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 FIG. is a perspective view showing a state where a solar panel is arranged on a floating board according to an embodiment of the present invention.

[0079] Figure 2 FIG. is a perspective view showing a state where a solar panel is removed from a floating board according to an embodiment of the present invention.

[0080] Figure 3A 、 Figure 3B FIG. is a view of the upper side of a floating board according to an embodiment of the present invention, Figure 3A which is a perspective view, Figure 3B and is a top view.

[0081] Figure 4A 、 Figure 4B FIG. is a view of the lower side of a floating board according to an embodiment of the present invention, Figure 4A which is a perspective view, Figure 4B and is a top view.

[0082] Figure 5 FIG. is a perspective view of the upper side of a floating board in a state where a support part is erected according to an embodiment of the present invention.

[0083] Figure 6 FIG. is a perspective view of the lower side of a floating board in a state where a support part is erected according to an embodiment of the present invention.

[0084] Figure 7 FIG. is along Figure 3A 、 Figure 3B 、 Figure 4A 、 Figure 4B and Figure 6 a sectional view taken along line A-A as shown in FIG.

[0085] Figure 8A 、 Figure 8B FIG. is a magnified view of the periphery of the mounting part indicated by arrow C in Figure 3A 、 Figure 3B and Figure 4A 、 Figure 4B FIG., Figure 8A which is a magnified perspective view of the surface wall side, Figure 8B and is a magnified top view of the back wall side.

[0086] Figure 9A 、 Figure 9B is a cross-sectional view of a part of the mounting portion related to an embodiment of the present invention, Figure 9A is a view showing along Figure 8A 、 Figure 8B a part of the cross-section along the Y-Y line in Figure 9B is a view showing along Figure 8A 、 Figure 8B a part of the cross-section along the X-X line in

[0087] Figure 10 is a schematic view showing a floating board related to an embodiment of the present invention connected by a passage joint.

[0088] Figure 11 is a cross-sectional view for explaining a modification of the other end side of the solar panel related to an embodiment of the present invention.

[0089] Figure 12A 、 Figure 12B 、 Figure 12C is a D-D line cross-sectional view along Figure 3B and Figure 4B the D-D line in Figure 12A is a schematic view showing the state of a fixing member without a mooring member such as a lifting eye bolt installed. Figure 12B is a schematic view showing the state of a fixing member with a mooring member such as a lifting eye bolt installed with the loop of the lifting eye bolt located on the back wall side. Figure 12C is a schematic view showing the state of a fixing member with a mooring member such as a lifting eye bolt installed with the loop of the lifting eye bolt located on the front wall side.

[0090] Figure 13 is a cross-sectional view for explaining the opening and closing mechanism of the opening related to an embodiment of the present invention.

[0091] Figure 14 is a schematic view showing a floating board assembly formed by connecting floating boards related to an embodiment of the present invention.

[0092] Figure 15 is a schematic view showing another example of the floating board assembly related to an embodiment of the present invention.

[0093] Figure 16 is a schematic view schematically showing the way of laying a cable from a solar panel.

[0094] Figure 17 is a view for explaining a modification of a floating board having a form suitable for cable laying.

[0095] Figures 18A - 18EIt is a plan view schematically showing a connection example in which a traction rope is used to connect a collection of kickboards related to each modification example.

[0096] Explanation of reference numerals 10 Kickboard 10a First end 10b Second end 11 Support part 11a Surface 12 Receiving part 13 Fixing fitting on one end side 13a Clamping part 13b Fixing part 13c Screw 14 Fixing fitting on the other end side 14a Lower fitting 14aa Hook part 14b Upper fitting 15 Side wall part 16 Surface wall 17 Back wall 18 Tapered part 19 Mounting part 19a Nut receiving part 19aa Bottom 19ab Rivet nut 19ac Screw 19b Peripheral wall part 19c First recess 19d Bottom 19e Second recess 19ea Bottom 19f Recess 21, 22, 23, 24 Sides 22a Bearing rib 25 Inner wall surface 26 Opening 26a Edge part 30 Ring-shaped kickboard part 35 Groove part 40 Recess 41, 42, 43 Frustum-shaped depressions 44, 45 Groove-shaped depressions 50 Solar panel 50a Glass part 50b Outer periphery 51 One end 52 The other end 53 Base 54 Base 55 Frame 55a Panel receiving part 55b Engaging part 60 Passage connector 60a One end 60b The other end 61 Engaging protrusion 62 Connecting bolt 62a Bolt hole 62b Bolt hole 63 Bolt hole 70 Mooring part 71 First through hole 71a Tapered part 72 Second through hole 80 Eye bolt 80a Ring 80b Body part 81 Nut 82 First fixing plate 82a Through hole 83 First bolt 84 First nut 85 Second fixing plate 90 Stopping part 91 Finger insertion recess 100 Floating plate assembly 101 - 104 Towing ropes 110 Jetty 120 Aggregate floating plate part 121 Edge 130 Connecting floating plate part CA Cable F Area PL Parting line Detailed implementation mode

[0097] 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 accompanying drawings.

[0098] It should be noted that in the description of the implementation mode, the same components are given the same reference numerals.

[0099] Figure 1Fig. 0 is a perspective view showing a state in which a solar panel 50 is provided on a floating board 10 according to an embodiment of the present invention. Figure 2 Fig. 1 is a perspective view showing a state in which the solar panel 50 is removed from the floating board 10.

[0100] It should be noted that in the following description, the side of the floating board 10 where the solar panel 50 is provided is referred to as the upper side, and the side of the floating board 10 placed on the water surface is referred to as the lower side.

[0101] In addition, when describing 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.

[0102] As will be described later, Figure 1 and Figure 2 the floating board 10 of the present embodiment shown in can connect a large number of floating boards 10 to each other with a passage joint 60 (see Figure 10 ), thereby forming an assembled floating board part 120 provided with the solar panel 50 (see Figure 14 ).

[0103] It should be noted that this assembled floating board part 120 (see Figure 14 ) is a part where thousands of (for example, up to 10,000 in many cases) floating boards 10 are assembled. Among the floating boards 10 used for the assembled floating board part 120, solar panels 50 are not provided on some of the floating boards 10, but are used as passages for maintenance and inspection of the solar panels 50.

[0104] In addition, this passage can also be used to lay cables led out from the solar panel 50.

[0105] On the other hand, it is necessary to place the assembled floating board part 120 (see Figure 14 ) at a position where the power generation efficiency of the solar panel 50 is good. Therefore, it is important to make it immovable under the influence of wind and the like.

[0106] Therefore, the floating board 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 to enable the floating board 10 to have a structure capable of mooring mooring components such as mooring anchor ropes, as will be described later.

[0107] It should be noted that the floating board assembly 100 of the present embodiment (see Figure 14 ) is not only the above-mentioned assembled floating board part 120 (see Figure 14 ), but as will be described in detail below, by making flexible use of the floating board 10, it is possible to lay cables from the assembled floating board part 120 to facilities on land.

[0108] As described above, the floating board 10 of the present embodiment can be used either as a floating board for installing a solar panel 50 or as a floating board for forming a passage or the like. Next, first, the configuration in the case of installing the solar panel 50 will be described, and then, the configurations in the cases of using it as a passage or the like and as a floating board for mooring a mooring member will be described.

[0109] Moreover, after describing the case of the floating board 10, further, the configuration of the floating board assembly 100 (refer to Figure 14 ) will be described in detail.

[0110] As Figure 1 shown, the floating board 10 of the present embodiment is supported in such a manner that the short side of the substantially rectangular solar panel 50 is inclined. For example, it is a floating board for a solar panel that can install the solar panel 50 on the water surface such as a pond or a lake.

[0111] (Outline of installing the solar panel) As Figure 1 shown, the floating board 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 end portion 52 (the other side of the other end portion 52 is referred to as the other end side) of the other long side of the solar panel 50.

[0112] 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.

[0113] As Figure 2 shown, at one end portion 51 of the solar panel 50, an aluminum base 53 supported by the support portion 11 is provided, and this base 53 is supported on the support portion 11.

[0114] On the other hand, as will be described in detail later, the floating board 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.

[0115] 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.

[0116] For example, in Patent Document 1, it is realized by installing an elastic body fixing profile provided with a groove for clamping the frame of the solar panel on the floating board and elastically clamping the edge of the frame of the solar panel by using the fixing profile to fix the solar panel to the floating board.

[0117] However, in the state of Patent Document 1, due to strong winds or the like that apply a force 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.

[0118] On the other hand, as described in the present embodiment, by using the metal fixing fitting 13, unlike using an elastomer or the like to elastically clamp, the solar panel 50 can be clamped more firmly.

[0119] 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.

[0120] And, as will be described in detail later, the floating plate 10 includes two other-end-side fixing fittings 14, which 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.

[0121] As described above, on one side (the other-end side) of the other end portion 52 of the solar panel 50, by using the 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.

[0122] It should be noted that in the present embodiment, the other-end-side fixing fitting 14 may also be provided at the center. As needed, a base may be provided at a position between the two bases 54, or it may be a fixing method using three other-end-side fixing fittings 14 at three positions. By such a setting, the one side (the other-end side) of the other end portion 52 of the solar panel 50 can be fixed more firmly and stably.

[0123] 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.

[0124] (Overall Structure of the Floating Plate) Hereinafter, with reference to the drawings, the floating plate 10 will be described in detail.

[0125] Figure 3A 、 Figure 3B is a view of the upper side of the floating plate 10, Figure 3A is an oblique 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 oblique view,Figure 4B This is a top view.

[0126] In addition, Figure 5 is a view corresponding to Figure 3A i.e., a view of the upper side of the floating plate 10, an oblique view showing the support portion 11 in an erected state as described later. Figure 6 is a view corresponding to Figure 4A i.e., a view of the lower side of the floating plate 10, an oblique view showing the support portion 11 in an erected state as described later.

[0127] It should be noted that Figure 5 also shows the state where the fixing metal fitting 13 is temporarily fixed to one end side of the support portion 11.

[0128] For example, the floating plate 10 can be manufactured by blow molding a molten tubular parison using 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.

[0129] As Figure 3A , Figure 3B and Figure 4A , Figure 4B shown, the overall outer shape of the floating plate 10 is rectangular (rectangle), and 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 ); a back wall 17 located on the lower side (refer to Figure 4A ); and a hollow portion for internally housing gas (such as air).

[0130] (Support portion and opening portion) 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 surface wall 16 and is for supporting the solar panel 50.

[0131] Figure 3A , Figure 3B and Figure 4A , Figure 4B represent the state before the support portion 11 is erected as shown in Figure 1 . The three sides 21, 22, and 23 of the periphery of the support portion 11 except for one end side edge 24 are cut, and the one end side edge 24 is used as a hinge so that an opening 26 (refer to Figure 5 and Figure 6 ) can be formed and it can be erected toward the surface wall 16 side (the side where the solar panel 50 is arranged).

[0132] 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 diagonal portion), which is formed in a manner surrounding the opening portion 26. The annular floating plate portion 30 has a hollow structure, and there is a gas (such as air) generating buoyancy inside it.

[0133] And, as Figure 1 shown, when the solar panel 50 is provided, the support portion 11 is erected toward the surface wall 16 in a manner of contacting the inner wall surface 25 (refer to Figure 3A ) of the opening portion 26 on the side of the edge 24 serving as a hinge. On one side of the edge 22 opposite to the edge 24 on the one - end side serving as a hinge, the solar panel 50 is arranged in a manner that the lower side of one - end side of the solar panel 50 is supported.

[0134] It should be noted that, as Figure 4B shown, on one side of the edge 22 opposite to the edge 24 on the one - end side of the support portion 11 serving as a hinge, a receiving rib 22a (refer to the dotted - line portion) for receiving one - end portion 51 side of the solar panel 50 is provided.

[0135] Specifically, in the portion of the receiving rib 22a, a stepped structure is formed by gradually approaching the back wall 17 toward the surface wall 16. When the solar panel 50 is provided on the floating plate 10, the one - end portion 51 side of the solar panel 50 can be received, so that the one - end portion 51 side of the solar panel 50 does not shift toward one end over the support portion 11.

[0136] When the support portion 11 is configured in this way, the opening portion 26 is located near the support portion 11. Since the inner wall surface of the opening portion 26 becomes a wall surface suppressing the bending of the structure, it is not easy to bend.

[0137] In addition, the support portion 11 is a structure 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 surface wall 16 with almost no gap, and it is a portion with improved rigidity, so it will not be deformed due to the influence of the floating - plate bending.

[0138] Therefore, in order to be able to perform the fixing work on the collective floating plate portion 120 (refer to Figure 14 ), near the floating plate 10 where this fixing work is performed, a passage joint 60 (refer to Figure 10There are workers on it. Since the workers will step on the floating board 10 for the fixing work, or there will be a situation where stress is applied to the floating board 10 due to the weight of the workers, etc., even in these situations, the support portion 11 is not easily affected by the bending of the floating board 10.

[0139] Therefore, without being affected by bending, the work of fixing one end side (one end side) of the floating board 10 with the one - end - side fixing fitting 13 can be carried out, thus avoiding the loosening of the installation of the one - end - side fixing fitting 13 caused by the bending of the floating board 10.

[0140] 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 ). 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 well, if the installation portion 19 is repeatedly bent or the like due to the passing of maintenance workers nearby or other various reasons, there will be a hidden danger of the fixing of the other - end - side fixing fitting 14 becoming loose after a period of time.

[0141] Therefore, as will be described later, although the installation portion 19 itself is not easily bent, by increasing the rigidity of the floating board 10 itself, the occurrence of bending of the floating board 10 itself can be reduced. Further, stress that causes it to deform is not easily applied to the installation portion 19. The following will explain this point.

[0142] (Bending suppression structure of the floating board) In Figure 6 , although the support portion 11 is not visible, at the position where the support portion 11 is located, a symbol indicating the support portion 11 is shown by an arrow, and the direction along the support portion 11 as shown in Figure 1 (refer to Figure 1 's Z - axis) is used as the Z - axis to represent.

[0143] As Figure 6 shows, a ring - shaped floating board portion 30 (refer to the shaded and hatched portion in Figure 5 ) is provided on the floating board 10. It is arranged in a manner that surrounds the opening portion 26 and has gas (such as air) that generates buoyancy inside.

[0144] As Figure 6 shows, a recess 40 is provided inside the ring - shaped floating board portion 30. It has a peripheral wall at a position on the opposite side of the support portion 11 with the opening portion 26 in between.

[0145] Specifically, the recess 40 is formed by molding in a way that the back wall 17 is recessed toward the front wall 16.

[0146] Figure 7 along the A-A line as shown in Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 6 in the cross-sectional view taken along the A-A line, the upper side is the surface wall 16 side of the floating plate 10, and the lower side is the back wall 17 side in Figure 7 .

[0147] It should be noted that in Figure 7 , similar to Figure 6 , the direction same as that of the support portion 11 shown in Figure 1 (refer to the Z-axis in Figure 1 ) is represented as the Z-axis.

[0148] As shown in Figure 6 and Figure 7 , the recess 40 includes: a recess 41, which is provided at one end on the side along the direction of the support portion 11 (refer to the Z-axis) and is frustum-shaped that tapers gradually toward the surface wall 16 side; a recess 42, which is provided at the other end and is frustum-shaped that tapers gradually toward the surface wall 16 side; 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 that tapers gradually toward the surface wall 16 side.

[0149] That is to say, the recess 40 has frustum-shaped recesses 41, 42, 43 that taper gradually toward the surface wall 16 side at both ends and the center in the direction along the support portion 11 (see the Z-axis).

[0150] In addition, the recess 40 includes recesses 44, 45, which are connected to the frustum-shaped recesses 41, 42, 43 in the direction along the support portion 11 (refer to the Z-axis) and are groove-shaped with a narrower width toward the surface wall 16 side.

[0151] And, as shown in Figure 7 , at the front end portions of the frustum-shaped recesses 41, 42, 43 of the recess 40, the back wall 17 and the surface wall 16 are integrated, and in the groove-shaped recesses 44, 45 portions, the back wall 17 and the surface wall 16 are not integrated.

[0152] By providing such a recess 40, it plays a role of ribs to enhance the rigidity of the peripheral wall of the recess 40, thereby making it difficult for bending to occur on the floating plate 10.

[0153] It should be noted that by making the groove-shaped recesses 44, 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 good moldability can be achieved during blow molding.

[0154] On the other hand, although the concave portion 40 reduces the volume of the gas (such as air) accommodated in the annular floating plate portion 30, the concave portion 40 forms a concave portion 40 having a peripheral wall opening toward the back wall 17 by recessing the back wall 17 toward the front wall 16 side. When the floating plate 10 is arranged on the water surface, it becomes an air chamber at one end that bears buoyancy. Therefore, it can suppress the reduction in buoyancy caused by the reduction in the volume of the gas (such as air) in the floating plate 10.

[0155] In addition, in order to enable the solar panel 50 to have a 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.

[0156] Although this expansion and contraction is different from the cause of the bending (deformation) caused by a worker stepping on the floating plate 10, it is also a main cause of the bending (deformation).

[0157] However, in the present embodiment, as described above, by providing the concave portion 40, since the total amount of the gas (such as air) accommodated in the annular floating plate portion 30 is reduced, the expansion and contraction force of the gas (such as air) will also become smaller. Therefore, it is possible to suppress the occurrence of bending (deformation) of the floating plate 10 caused by the temperature difference between day and night.

[0158] In particular, as described above, since the back wall 17 and the front wall 16 are integrally formed at the front end portions of the frustum-shaped recesses 41, 42, 43 of the concave portion 40, even if the internal gas (such as air) expands, the front wall 16 and the back wall 17 will not move to create a distance between them. In addition, conversely, when the internal gas (such as air) 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).

[0159] On the other hand, as described above, although the concave portion 40 can act as a reinforcing rib to improve 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 thus there may be a risk of pinholes during molding.

[0160] Here, for the portion that is the most recessed toward the front wall 16 side, it is formed into a frustum shape in which the wall thickness does not change locally during molding.

[0161] In addition, by Figure 6It can be seen that the diameters of the bottom edges (openings) of the frustum-shaped recesses 41, 42, and 43 are larger than the widths of the groove-shaped recesses 44 and 45, and they are formed in a manner that slopes gently so that the wall thickness does not become thinner.

[0162] 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 recess 40 and the frustum-shaped recesses 41 and 42 may cause the occurrence of pinholes, for the frustum-shaped recesses 41 and 42, the frustum-shaped recesses 41 and 42 rise from the back wall 17 adjacent to the recess 40 toward the surface wall 16 at an angle of θ1 (specifically 110 degrees).

[0163] Similarly, at the frustum-shaped recess 43, the front end side of the frustum-shaped recess 43 rises from the bottom surface on the surface wall 16 side of the groove-shaped recesses 44 and 45 toward the surface wall 16 at an angle of θ2 (specifically 145 degrees).

[0164] 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.

[0165] In addition, as Figure 7 shown, the diameter of the integrated part of the back wall 17 and the surface wall 16 of the frustum-shaped recess 43 located at the center of the recess 40 is smaller than the diameters of the integrated parts of the back wall 17 and the surface wall 16 of the two frustum-shaped recesses (recesses 41 and 42) located at both ends of the recess 40. Through such a design, the moldability can be improved.

[0166] 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.

[0167] 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 ).

[0168] It should be noted that by controlling the degree of depression so that the back wall 17 of the groove-shaped depression portions 44 and 45 is not integrated with the front wall 16, when forming the frustum-shaped depressions 41, 42, and 43, it is possible to maintain the wall thickness so that no pinholes appear in the recess 40. To what extent the back wall 17 of the groove-shaped depression portions 44 and 45 needs to be spaced apart from the front wall 16, in other words, to what extent the groove-shaped depression portions 44 and 45 are depressed, can be determined from the viewpoint of suppressing pinholes during the molding of the floating plate 10.

[0169] In addition, if the width of the groove-shaped depression portions 44 and 45 becomes wider, the volume of gas inside the floating plate 10 can be reduced.

[0170] However, since the recess 40 itself has an open shape on the side facing the water surface, it can cover the water surface and 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.

[0171] If this is the case, correspondingly, the buoyancy of the floating plate 10 will decrease. Even if such a situation occurs suddenly, it is important to ensure that the floating plate 10 has sufficient buoyancy.

[0172] Moreover, since the depression of the groove-shaped depression portions 44 and 45 toward the front wall 16 side is formed relatively shallowly, from the viewpoint 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 depression portions 44 and 45 smaller than the diameter of the bottom edge (opening side) of the frustum-shaped depression portions 41, 42, and 43, from the viewpoint of buoyancy, the volume of gas inside the floating plate 10 will not be reduced too much.

[0173] Furthermore, in the present embodiment, the shape of the front 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 influence of the bending of the floating plate 10, and suppressing the loosening of the fixing of the other end side fixing fitting 14 (refer to Figure 2 ). Hereinafter, this will be described.

[0174] When focusing on the front wall 16 side, Figure 3A the part of the A-A line in Figure 7 is the position where the recess 40 is located, as shown in Figure 3A the front wall 16 includes an inclined portion 18, which is located at a position approximately at the end of the recess 40 on the side opposite to the opening portion 26 (refer to Figure 5 ) across the recess 40, and approaches the back wall 17 side from the side away from the recess 40, and is provided to be close to the other end side of the floating plate 10.

[0175] The inclined portion 18 is designed in such a way that it constitutes an inclined surface with a specified inclination angle of the solar panel 50, making it easy to install. A groove portion 35 is provided in the inclined portion 18.

[0176] 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).

[0177] In addition, the groove portion 35 is provided from the inclined portion 18 to one side of the opening portion 26 in such a way that it also exists at a position on the concave portion 40. By integrating the back wall 17 of the concave portion 40 with the surface wall 16 whose rigidity is enhanced, the overall rigidity can be further improved, and bending (deformation) can be further suppressed.

[0178] It should be noted that the groove portion 35 opens in such a way that the front end of the groove portion on the inclined portion 18 side has almost no fault (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.

[0179] (Fixing of one end side of the solar panel) As described in the above reference Figure 1 In the description, one end portion 51 of the solar panel 50 is fixed to the support portion 11 by the one - end - side fixing metal fitting 13, thereby fixing it to the floating plate 10.

[0180] 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 the side 24 shown therein), (such as the side of the side 22 shown in Figure 3A , Figure 3B ). It 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 in an erected state; 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.

[0181] And, as Figure 1 shown, the one - end - side fixing metal fitting 13 is fixed to the support portion 11 with 4 screws 13c. The screw holes through which the screws 13c pass on the one - end - side fixing metal fitting 13 provided for the two screws 13c close to the center are long holes in the vertical direction.

[0182] Therefore, when the one-end-side fixing metal fitting 13 is temporarily fixed relative to the support portion 11 by the two screws 13c near 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.

[0183] 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 the solar panel 50 is inserted 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 near the center are finally tightened and fixed.

[0184] Moreover, after the two screws 13c near the center are tightened, further, the one-end-side fixing metal fitting 13 is fixed to the support portion 11 by the two outer screws 13c, and thus the fixing of one side (one end side) of the one-end portion 51 of the solar panel 50 to the floating plate 10 is completed.

[0185] As described above, since the support portion 11 is not easily affected by the bending of the floating plate 10 body, 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 by fixing the one-end-side fixing metal fitting 13 to the support portion 11, the fixing can be carried out without being affected by bending.

[0186] 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.

[0187] (Fixing the other end side of the solar panel) As described in the above reference Figure 2 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.

[0188] And, as Figure 2 and Figure 3A and Figure 3B shown, the floating plate 10 includes a mounting portion 19 for mounting the other-end-side fixing metal fitting 14.

[0189] Figure 8A and Figure 8B is in Figure 3A and Figure 3B and Figure 4A and Figure 4BAn enlarged view of the periphery of one mounting portion 19 indicated by arrow C in Figure 8A is an enlarged perspective view from the surface wall 16 side, Figure 8B and is an enlarged plan view from the back wall 17 side.

[0190] 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 Figure 8A , Figure 8B the Y-Y line in Figure 9B is a cross-sectional view showing a part of the cross-section along Figure 8A , Figure 8B the X-X line in

[0191] 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.

[0192] As Figure 2 shown, the other end side fixing fitting 14 is mainly composed of a lower side fitting 14a with one end side disposed under the solar panel 50 and an upper side fitting 14b with one end side disposed above the solar panel 50, wherein the other end sides of the lower side fitting 14a and the upper side fitting 14b are commonly fixed to the mounting portion 19 for mounting the other end side fixing fitting 14 with screws 19ac (refer to Figure 11 ).

[0193] In this way, by forming a common fixing form of the lower side fitting 14a and the upper side fitting 14b with screws 19ac (refer to Figure 11 ), it is only necessary to remove the screws 19ac to disassemble the lower side fitting 14a and the upper side fitting 14b from the floating plate 10.

[0194] In addition, when fixing the lower side fitting 14a and the upper side fitting 14b to the floating plate 10, it is only necessary to install the screws 19ac.

[0195] Therefore, compared with the case where the lower side fitting 14a and the upper side fitting 14b are respectively fixed to the floating plate 10, the installation and disassembly work of the lower side fitting 14a and the upper side 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.

[0196] And, as Figure 8AAs shown, at the installation part 19, at the other end side, at the position corresponding to the screw hole through which the screw 19ac (refer to Figure 11 ) for fixing the metal fitting 14 passes, a pair of nut receiving parts 19a for receiving and fixing nuts with the surface wall 16 recessed toward the back wall 17 are provided. They are arranged at intervals in the direction of the receiving part 12 along the other end part 52 side (refer to Figure 2 ) of the solar panel 50 to be received. In this nut receiving part 19a, a rivet nut 19ab (refer to Figure 11 ) is received and fixed, which is screwed with the screw 19ac (refer to Figure 11 ) for fixing the metal fitting 14 at the other end side with a screw.

[0197] In addition, as Figure 8A shown, at the installation part 19, at the part where the lower metal fitting 14a is arranged, a stepped part having substantially the same thickness as the lower metal fitting 14a is provided, and it can be arranged in such a way that the lower metal fitting 14a does not protrude.

[0198] It should be noted that in other figures, the illustration of the stepped part is omitted in some cases.

[0199] On the other hand, if looking at the position corresponding to the installation part 19 from the back wall 17 side, as Figure 8B shown, a first recess 19c is provided, which has a peripheral wall part 19b with the back wall 17 recessed toward the surface wall 16.

[0200] That is to say, the installation part 19 includes: a first recess 19c having a peripheral wall part 19b with the back wall 17 recessed toward the surface wall 16, and a nut receiving part 19a for receiving and fixing nuts with the surface wall 16 recessed toward the back wall 17.

[0201] It should be noted that as Figure 8B shown, at the other end side ( Figure 8B the right side) closer to the floating plate 10 than the first recess 19c, a recess 19f is provided adjacent to the first recess 19c.

[0202] 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 surface wall 16, and it can be used as a handle when the staff holds the floating plate 10 during the handling of the floating plate 10 and the like.

[0203] Therefore, the staff can stably hold the floating plate 10, making it easier to carry out the handling work of carrying the floating plate 10 on the water surface.

[0204] And, looking at the cross-sectional structure of this part, as Figure 9AAs shown, the bottom 19aa on the back wall 17 side of the nut housing portion 19a and the bottom 19d on the surface wall 16 side of the first recess 19c are integrated.

[0205] As a manufacturing method capable of forming such an integrated structure, there is no particular limitation. For example, it can be formed by blow molding according to the shape of the mold.

[0206] Therefore, the mounting portion 19 is provided with the first recess 19c that functions as a reinforcing rib, and at the same time houses the rivet nut 19ab (refer to Figure 11 ). Since the nut housing portion 19a and the back wall 17 are integrally formed, it is not easily affected by bending, and the rivet nut 19ab housed and fixed therein will not fall off from the nut housing portion 19a due to the deformation of the nut housing portion 19a.

[0207] In addition, as shown in the cross-section at the position between a pair of nut housing portions 19a in the direction of the receiving portion 12 along the other end portion 52 side (refer to Figure 2 ) of the solar panel 50 received (the position of the X-X line in Figure 8A , Figure 8B ), further, a second recess 19e that is recessed toward the surface wall 16 side is provided. By integrating the bottom 19ea on the surface wall 16 side of the second recess 19e with the surface wall 16, the rigidity can be further improved. Figure 9B As shown, at a position closer to the other end side than the straight line connecting a pair of nut housing portions 19a (refer to Figure 8A , Figure 8B and Figure 9A ).

[0208] In addition, as shown in Figure 9A , Figure 9B , the receiving portion 12 on one side (the other end side) of the other end portion 52 of the solar panel 50 received has a portion integrated with the surface wall 16 and the back wall 17.

[0209] Specifically, as shown in Figure 3A , Figure 3B , the receiving portion 12 is formed such that it stands up from the end portion on the other end side of the inclined portion 18 with the surface wall 16 facing away from the back wall 17.

[0210] That is to say, the receiving portion 12 is formed as a standing wall portion. As shown in Figure 9A , Figure 9B , the peripheral wall portion 19b of the first recess 19c is integrated with the standing wall portion on the side of the standing wall portion that serves as the receiving portion 12.

[0211] Therefore, the rigidity of the receiving portion 12 on one side (the other end side) of the other end portion 52 of the solar panel 50 is increased. Even if the gas (such as air) in the portion closer to the center of the floating plate 10 where there is more gas than in the receiving portion 12 expands and contracts, the resulting bending (deformation) will not affect the mounting portion 19 located outside the receiving portion 12.

[0212] In the above manner, the mounting portion 19 not only has a high rigidity that is not easily bent (deformed) itself, but is also not easily affected even when 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 ) accommodated and fixed in the nut housing portion 19a to fall off from the nut housing portion 19a.

[0213] 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 above-mentioned deformation (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.

[0214] For example, when a strong wind blows between the solar panel 50 and the floating plate 10 and forces the solar panel 50 to be lifted 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 the present embodiment, since it can be firmly fixed on the lower side and the upper side of the solar panel 50, it is possible to achieve stable fixing that suppresses the occurrence of the above-mentioned position shift.

[0215] More specifically, as can be seen from Figure 1 , the solar panel 50 is disposed obliquely above the floating plate 10, and the one end portion 51 side of the solar panel 50 is located at a position away from the floating plate 10 compared to the other end portion 52 side. Therefore, wind or the like can blow into the space between the solar panel 50 and the floating plate 10 from the one end portion 51 side of the solar panel 50.

[0216] On the other hand, the other end portion 52 side of the solar panel 50 is disposed on the floating plate 10 with almost no gap, so the wind blown into the space between the solar panel 50 and the floating plate 10 cannot escape, thereby having an upward pushing effect on the other end portion 52 side of the solar panel 50 and applying an upward pushing stress on the other end side fixing fitting 14.

[0217] And, above the solar panel 50 is the location where the glass portion 50a of the solar panel 50 is located (refer to Figure 2 ), so the upper metal fitting 14b of the fixing metal fitting 14 at the other end side cannot fix the solar panel 50 with screws or the like. By pressing the solar panel 50 toward the lower metal fitting 14a of the fixing metal fitting 14 at the other end side (refer to Figure 2 ), it functions together with the lower metal fitting 14a to clamp the solar panel 50. Figure 2 ), the solar panel 50 is clamped.

[0218] Therefore, 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 will cause the gap between the upper metal fitting 14b and the lower metal fitting 14a to expand, making it difficult to stably fix the solar panel 50 with the upper metal fitting 14b.

[0219] On the other hand, by fixing the base 54 provided on the solar panel 50 with screws through the lower metal fitting 14a, 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.

[0220] Therefore, according to this embodiment, the fixed state of the solar panel 50 can be maintained stably.

[0221] It should be noted that, in this embodiment, as Figure 2 shown, at both ends 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 fixing metal fitting 14 at the other end side.

[0222] In this way, although stable fixing without swaying left and right can be achieved by fixing at both ends, further fixing at the center can achieve more stable fixing.

[0223] 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 a passage joint 60 that serves as a passage during maintenance, thereby forming an assembled floating plate portion 120 (refer to Figure 14 ).

[0224] Specifically, as Figure 1 shown, on the first end portion 10a side of the floating plate 10 close to the support portion 11, the floating plate 10 forms a connection with the passage joint 60 (refer to Figure 10A pair of engaging protrusions 61 for engagement, wherein the passage connector 60 has an engaging recess (not shown) on the back side that engages with the engaging protrusions 61.

[0225] In addition, the floating plate 10 includes bolt holes 62a (see Figure 3A , Figure 3B ), through which the connecting bolts 62 for connecting the passage connector 60 pass. The passage connector is on the second end portion 10b side of the floating plate 10 on the receiving portion 12 side, which is on the side (the other end side) closer to the other end portion 52 of the solar panel 50 being received.

[0226] 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 of the floating plate 10 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 (see Figure 1 ).

[0227] And, as Figure 10 shown, the passage connector 60 has bolt holes 63 corresponding to the bolt holes 62a and the bolt holes 62b.

[0228] Therefore, for one floating plate 10, the passage connector 60 is engaged at the engaging protrusions 61 of the one floating plate 10, and the bolt holes 62b on the first end portion 10a side of the one floating plate 10 (see Figure 1 ) are connected to the bolt holes 62a on the second end portion 10b side of the other floating plate 10 and the bolt holes 63 of the passage connector 60 with the connecting bolts 62, so that a plurality of floating plates 10 are connected by the passage connector 60 to form a connected state.

[0229] It should be noted that, as Figure 10 shown, the passage connectors 60 for the portion connecting one floating plate 10 and the other floating plate 10 are arranged in a pair symmetrically in the direction (see the W axis) orthogonal to the direction (see the Z axis) in which the floating plates 10 are arranged. One end 60a of one passage connector 60 (see 60A) is connected to the one and the other floating plates 10, and the other end 60b of the one passage connector 60 is connected to the connecting portion of one and the other floating plates 10 of other floating plates 10.

[0230] In addition, the other end 60b of the other passage connector 60 arranged in a pair (see 60B) is connected to the one and the other floating plates 10, and one end 60a of the other passage connector 60 (see 60B) is connected to the connecting portion of one and the other floating plates 10 of other floating plates 10. In this way, the floating plates 10 can be connected one by one through the passage connectors 60 to form the collective floating plate portion 120 described later (seeFigure 14 ).

[0231] The passage joint 60 serves as a part for people to walk on during maintenance etc., and thus is subject to loads. If the rigidity of the floating plate 10 is low, the floating plate 10 will deform due to the load.

[0232] However, by the method described above, not only the rigidity of the mounting portion 19 of the floating plate 10 of the present embodiment is improved, but also the rigidity of the floating plate 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.

[0233] In addition, the rigid mounting portion 19 is not easily deformed even when subjected to a load, and it is possible to avoid deformation of the mounting portion 19 fixed by the fixing metal fitting 14 on the other end side due to maintenance work etc., and to suppress the rivet nut 19ab (refer to Figure 11 ) provided on the mounting portion 19 from falling off, thereby enabling stable fixing of the solar panel 50.

[0234] (Deformation example of the other end side for fixing the solar panel) In the above description, the state of screwing the lower metal fitting 14a of the fixing metal fitting 14 on the other end side to the base 54 provided on the solar panel 50 (refer to Figure 2 ) was described. Figure 2 However, the work of screwing the lower metal fitting 14a to the base 54 is necessary, but when working on the floating plate 10 placed on the water surface, the work of screwing the lower metal fitting 14a to the surface of the base 54 below the solar panel 50 has a problem of poor workability.

[0235] By the method described below, workability can be further improved.

[0236]

[0237] Figure 11 It is a cross-sectional view for explaining a deformation example of one side (the other end side) of the other end portion 52 of the solar panel 50.

[0238] Figure 3B 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 receiving portions 19a (refer to ) that houses the rivet nut 19ab of the mounting portion 19 where the fixing metal fitting 14 on the other end side is installed is cut horizontally, showing the state where the solar panel 50 is fixed to the floating plate 10 by the fixing metal fitting 14 on the other end side.

[0239] It should be noted that in this modification example, as the structure on the side of the floating board 10, only the structure of the lower fitting 14a of the fixing fitting 14 on the other end side is different, and other structures are the same as those described previously.

[0240] As Figure 11 shown, a frame 55 is provided on the solar panel 50, which includes: a panel receiving portion 55a that is provided along the outer periphery 50b of the glass portion 50a of the solar panel 50 for receiving the glass portion 50a; and an engaging portion 55b that 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 inwardly of the solar panel 50.

[0241] On the other hand, the lower fitting 14a of the fixing fitting 14 on the other end side is provided with a U-shaped hook portion 14aa, which is formed in a U-shaped manner by folding back one end side upward at one end side of the lower fitting 14a.

[0242] Therefore, the lower fitting 14a engages with the solar panel 50 by engaging the hook portion 14aa with the engaging portion 55b that can engage the hook portion 14aa of the solar panel 50.

[0243] When the lower 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 fitting 14a will not fall off.

[0244] Moreover, in this modification example, screw fixing is not required, and only the hook portion 14aa needs to be engaged with the engaging portion 55b, so the workability of installing the lower fitting 14a on the solar panel 50 can be improved.

[0245] It should be noted that in this modification example, the structure (engaging portion 55b) on the side of the solar panel 50 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.

[0246] The above has described the structure for setting the solar panel 50 on the floating board 10, but it should be noted that the above specific example is only an example.

[0247] 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 in 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 whose width narrows toward the surface wall 16. The above situation has been described, 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.

[0248] In addition, in the above description, although the width of the concave portion 40 in the direction (Z-axis direction) of the support portion 11 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 having a width smaller than the width of the support portion 11 in the direction of the support portion 11.

[0249] 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.

[0250] In addition, in the above description, although it shows the case where the bases 53 and 54 are provided on a part of the outer periphery 50b of the solar panel 50, it can also be a base having a structure similar to the frame 55 that covers the entire outer periphery 50b.

[0251] (For the structure of mooring the floating plate) Next, a structure when the solar panel 50 is not used as a part of a passage or the like and is moored to a mooring member such as an anchor rope will be described.

[0252] As described above, the floating plate 10 of the present embodiment includes an annular floating plate portion 30 having an opening 26.

[0253] Specifically, as already mentioned in the above description, the opening 26 is composed of a combination of the surface wall 16 and the back wall 17 corresponding to the opening 26. 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 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.

[0254] And, as Figure 6 shown, when the support portion 11 is erected in such a manner as to form the opening 26, a structure is formed that allows entry into the region F on the back wall 17 side at the center of the floating plate 10 from the opening 26.

[0255] The area F at the center of the floating board 10 is the position where the diagonals of the four corners of the rectangular floating board 10 intersect, and it is approximately at the center of gravity position.

[0256] If a mooring component 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 pulling anchor force of the mooring component is applied to the center of gravity position that can prevent the floating board 10 from tilting and maintain its high attitude stability. Therefore, the attitude of the floating board 10 can be prevented from deteriorating.

[0257] In addition, when a worker rides near the edge of 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 of the floating board 10, it is impossible to fix a mooring component such as an anchor rope to the floating board 10, so the workability is extremely poor.

[0258] It should be noted that considering this danger of falling into the water, work can also be carried out on a boat or the like near the edge of the floating board 10. In this case, since the work is carried out on a boat, the workability is not good enough.

[0259] On the other hand, as described above, the area F at the center of the floating board 10 is the center of gravity position with high attitude stability. Therefore, even if the worker is near this position, it is not easy for the floating board 10 to lose balance.

[0260] Therefore, if a mooring component such as an anchor rope is fixed at the area F at the center of the floating board 10, when the work of fixing the mooring component such as an 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 component such as an anchor rope to the floating board 10 is easy to carry out.

[0261] A mooring part 70 for mooring components such as a mooring anchor rope is provided in the area 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 26 (near the other end side). More specifically, it is provided at a position adjacent to the edge part 26a of the opening 26 that faces the erected support part 11 across the opening 26.

[0262] 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.

[0263] That is to say, the mooring part 70 is constituted in such a way that the surface wall 16 and the back wall 17 are combined to improve the rigidity.

[0264] Figure 12A , Figure 12B , Figure 12C It is along Figure 3B as well as Figure 4B The DD line cross-section diagram of the DD line in Figure 12A 1 is a schematic diagram showing a state where the anchoring member fixing member such as the eyebolt 80 is not installed. Figure 12B 1 is a schematic diagram showing a state in which a fixing member such as an eyebolt 80 or a mooring member is installed and fixed in such a manner that the ring 80a of the eyebolt 80 is located on the side of the back wall 17. Figure 12C This is a schematic diagram showing a state in which a fixing member such as an eyebolt 80 or a mooring member is attached and fixed so that the ring 80 a of the eyebolt 80 is located on the surface wall 16 side.

[0265] And, if Figure 12B as well as Figure 12C As shown, the floating plate 10 includes, as an accessory component, a lifting eye bolt 80 having a ring 80a for fixing a mooring component such as an anchor rope, and a nut 81 screwed into a screw groove of the lifting eye bolt 80 having a main body 80b extending from the ring 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 main body 80b of the lifting eye bolt 80 passes.

[0266] In addition, if Figure 12B as well as Figure 12C As shown, the floating plate 10 includes, as an auxiliary component, a first fixing plate 82 arranged on the side of the surface wall 16 or the side of the back wall 17 of the mooring portion 70, a pair of first bolts 83 fixing the first fixing plate 82 to the mooring portion 70, and a pair of first nuts 84 screwed with the first bolts 83. Correspondingly, the mooring portion 70 has a pair of second through holes 72 through which the first bolts 83 are passed, which are arranged across the first through holes 71.

[0267] Furthermore, the first fixing plate 82 has three through holes 82 a provided corresponding to the first through holes 71 and the second through holes 72 , through which the main body 80 b of the eye bolt 80 and the first bolt 83 pass.

[0268] It should be pointed out that if Figure 3B , Figure 4B , Figure 5 as well as Figure 6 As shown, the first through hole 71 and the second through hole 72 are formed on the anchoring portion 70 along the edge portion 26a (see Figure 5 ) are set side by side.

[0269] Next, the structure of the mooring member such as the anchor rope which uses the said accessory member structure for mooring is demonstrated.

[0270] Figure 12BThe diagram shows a state in which an anchor is sunk to the bottom of a pond or lake, one end of a mooring member such as an anchor rope is connected to the anchor, and the other end of the mooring member is moored to the floating plate 10, and the ring 80a of the eye bolt 80 is arranged so as to be located on the back wall 17 side on the water surface side.

[0271] In this case, when the collective floating plate portion 120 (refer to Figure 14 ) When attempting to move due to factors such as wind, the force of the anchoring components such as the anchor rope pulling the floating plate 10 acts as a force pulling the eye bolt 80 from the back wall 17 of the floating plate 10 in the direction opposite to the surface wall 16 (the lower side of the figure).

[0272] At this time, if stress is concentrated at a local position such as where the eyebolt 80 is located on the floating plate 10 , the floating plate 10 made of resin may be damaged.

[0273] 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.

[0274] 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.

[0275] However, the first fixing plate 82 may be provided as needed and is not necessarily required.

[0276] 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.

[0277] 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.

[0278] 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.

[0279] In this way, when the loop 80a of the eyebolt 80 is set to a position on the surface wall 16 side, the force that the mooring member such as the anchor rope tries to pull to hold the floating board 10 is applied in the opposite direction to the force described above. In this case, as Figure 12C shown, it is only necessary to set the first fixing plate 82 on the back wall 17 side of the mooring part 70.

[0280] In the present embodiment, the first through hole 71 provided in the mooring part 70 through which the main body part 80b of the eyebolt 80 passes has a tapered part 71a formed by recessing the surface wall 16 toward the back wall 17 side in a tapered shape, and in this way, it has a structure with a reinforcing rib.

[0281] Therefore, when the first fixing plate 82 is arranged on the back wall 17 side, in order to prevent the loop 80a of the eyebolt 80 from falling into the tapered part 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 part 70 so as to cover the tapered part 71a.

[0282] However, when the mooring member such as the anchor rope tries to fix the floating board 10 to the second fixing plate 85, since too strong a force is not applied to the second fixing plate 85, as Figure 12C shown, its thickness may not be the same as that of the first fixing plate 82.

[0283] It should be noted that this second fixing plate 85 also needs to be able to pass through the main body part 80b of the eyebolt 80, so at the position corresponding to the first through hole 71, there is a through hole through which the main body part 80b of the eyebolt 80 passes.

[0284] In the above description, the mooring members such as the anchor ropes fixed in water and on land are described according to their different fixing places. Needless to say, the mooring members such as the anchor ropes of the collective floating board part formed by connecting a large number (multiple) of floating boards 10 can also be used in combination with the mooring members such as the anchor ropes fixed in water and on land.

[0285] That is to say, in the collective floating board part, in order to be able to moor stably, the mooring members such as the anchor ropes are connected at multiple positions, among which, the mooring members such as the anchor ropes of the anchors fixed in water are connected at several of the multiple positions, and the remaining positions are connected to the mooring members such as the anchor ropes fixed on land.

[0286] Here, for example, in Patent Document 1, by providing fixing ears at the four corners of the floating board and also providing fixing ears at the four corners of the connecting member, the floating boards are assembled together by connecting the fixing ears with fixing pins. In this case, when the assembled floating boards form a rectangular shape, only the fixing ears remain at the four corners of the assembled floating board part, so only 4 anchor ropes can be used for connection.

[0287] In this way, when using the connection structure of the floating board to fix mooring components such as anchor ropes, the mooring components such as anchor ropes can only be fixed at the part where this connection structure is used.

[0288] In contrast, in the present embodiment, in addition to the connection structure used when assembling the floating boards 10, a mooring part 70 for mooring components such as anchor ropes is additionally provided. Therefore, when assembling the floating boards 10 to form an assembled floating board part 120 (refer to Figure 14 ), as long as the floating board 10 is used as a passage or the like, the mooring components such as anchor ropes can be moored on any of the floating boards 10, so the degree of freedom in setting the anchor ropes is very high.

[0289] Moreover, 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, 25% of the total force when the assembled floating board part attempts to move is distributed to each anchor rope. And when one of the anchor ropes breaks, 33% of the total force when the assembled floating board part attempts to move will be respectively applied to the remaining anchor ropes, and the probability of the anchor rope breaking will immediately increase. Therefore, there are concerns about the stability of mooring.

[0290] However, according to the floating board 10 of the present embodiment, as long as the floating board 10 is used as a passage or the like, the mooring components such as anchor ropes can be moored on any floating board 10. Therefore, the number of mooring components such as anchor ropes used to tie and fix the assembled floating board 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 breakage of mooring components such as anchor ropes can be significantly reduced. At the same time, even if any one of the mooring components is damaged, it is possible to avoid applying excessive force to the remaining mooring components.

[0291] Therefore, it is possible to have high mooring stability for the assembled floating board part 120 (refer to Figure 14 ).

[0292] In addition, this 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 board part is correspondingly increased, the assembled floating board part can still be sufficiently moored.

[0293] Therefore, by reducing the weight of the anchor, when it is necessary to disassemble and remove the assembled floating plate part etc. after using the solar panel 50, the work of pulling up the anchor can be easily carried out.

[0294] It should be noted that at the mooring part 70 of the floating plate 10 of the mooring components such as the mooring anchor rope, the force applied at one place can be reduced. Therefore, the same as reducing the probability of breakage of the mooring components such as the anchor rope, the probability of breakage of the mooring part 70 can also be significantly reduced.

[0295] In addition, a mooring part 70 is provided at the center of the floating plate 10, which is set at a position where even if a force is applied by the mooring components such as the anchor rope to pull and hold the floating plate 10, the floating plate 10 can maintain a stable posture without tilting. Therefore, the floating plate 10 can be moored in a state with good postural stability.

[0296] On the other hand, when the mooring part 70 is set at the center position of the floating plate 10 like this, if there is no opening 26 leading to this position, it is difficult to carry out the work of tying and fixing the mooring components such as the anchor rope to the mooring part 70 at this position.

[0297] However, in the present embodiment, since there is an opening 26 near the mooring part 70, it is possible to simply enter the back wall 17 side of the mooring part 70, and when the ring 80a of the stud bolt 80 is set on the back wall 17 side, it is also possible to easily carry out the work of mooring the mooring components such as the anchor rope to the ring 80a.

[0298] Furthermore, if a floating plate 10 without a solar panel 50 installed is provided at the center of the assembled floating plate part 120 (refer to Figure 14 ), it is also possible to simply moor the mooring components such as the anchor rope to the floating plate 10.

[0299] Therefore, if it is the assembled floating plate part 120 (refer to Figure 14 ) constituted by using the floating plate 10 of the present embodiment, not only around the assembled floating plate part 120, but also at the center of the assembled floating plate part 120, it is possible to moor and fix with mooring components such as the anchor rope.

[0300] The floating plate 10 of the present embodiment can also be used as a passage etc. When used in this way, it is preferred to close the opening 26 first, and when it is necessary to enter the back wall 17 side of the mooring part 70, it is preferred to be able to simply open the opening 26.

[0301] 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 anchor ropes, the opening 26 can be easily opened, making it advantageous for easy inspection work.

[0302] 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.

[0303] Figure 13 It is a cross-sectional view for explaining the opening and closing mechanism of the opening 26.

[0304] Specifically, it is an E-E line 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.

[0305] 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.

[0306] 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 to the side of the back wall 17.

[0307] As Figure 10 and Figure 13 shown, when the support portion 11 is erected with the side 24 as a hinge so that the opening 26 (refer to Figure 5 ) is in an open state, at the edge portion 26a (refer to Figure 5 ) at the other end side (the side opposite to the side 24 as the hinge) of the opening 26, stoppers 90 are provided near both ends. When the one-end side fixing fitting 13 is installed on the support portion 11, when the support portion 11 is laid down (lowered) in a manner to block the opening 26, it receives a part (both ends) of the one-end side fixing fitting 13.

[0308] 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 towards the side of the back wall 17, the support portion 11 will not move towards the back wall 17 side.

[0309] Moreover, the fixing metal fitting 13 on one end side is an accessory for fixing the solar panel 50. Only by making flexible use of this accessory, there is no need to add new components.

[0310] On the other hand, as Figure 1 shown, a finger insertion recess 91 is provided in the support portion 11. It is provided so that when the support portion 11 stands up toward the surface wall 16 side, a finger can be inserted between the fixing portion 13b of the fixing metal fitting 13 on the one end side and the support portion 11 on the surface 11a of the support portion 11 facing the one end side.

[0311] Therefore, when standing up the support portion 11 from the fallen state closing the opening portion 26 toward the surface wall 16 side, only by pulling by inserting a finger between the fixing portion 13b and the support portion 11, the support portion 11 can be stood up toward the surface wall 16 side, and thus the opening portion 26 can be simply opened.

[0312] It should be noted that in the above description, the case where the mooring components such as the anchor rope are moored on the floating plate 10 without installing the solar panel 50 is described. If the solar panel 50 is provided, it only makes the work of the mooring components such as the mooring anchor rope difficult, but it does not mean that the mooring of the mooring components such as the anchor rope is impossible.

[0313] Therefore, as needed, the mooring components such as the mooring anchor rope can also be moored on the floating plate 10 provided with the solar panel 50.

[0314] (Floating plate assembly) Next, a floating plate assembly 100 formed by using the above-described floating plate 10 and the passage joint 60 will be described.

[0315] Figure 14 It is a schematic diagram showing the floating plate assembly 100 formed by connecting the floating plates 10 of the present embodiment.

[0316] As Figure 14 shown, the floating plate assembly 100 includes a trestle 110 having a linear floating plate portion formed by linearly connecting the floating plates 10, a collective floating plate portion 120 for arranging the solar panels 50 formed by connecting the floating plates 10, and a connecting floating plate portion 130 between the collective floating plate portion 120 and the trestle 110 formed by connecting the floating plates 10.

[0317] The trestle 110 and the connecting floating plate portion 130 are composed of the floating plates 10 having the same structure as the floating plates 10 used for the collective floating plate portion 120.

[0318] Therefore, there is no need to form floating plates with different structures for the trestle 110 and the connecting floating plate part 130, thereby suppressing the manufacturing cost of the floating plates for constituting the trestle 110 and the connecting floating plate part 130.

[0319] It should be noted that, as Figure 14 shown, the collective floating plate 120 is merely an example. As originally described, the collective floating plate part 120 is actually composed of hundreds or thousands of floating plates 10 connected by passage connectors 60, and a large number of solar panels 50 are arranged.

[0320] In addition, different from the collective floating plate part 120 where the solar panels 50 are arranged, the solar panels 50 are not arranged on the trestle 110 and the connecting floating plate part 130. Therefore, there is no need to cut the other three sides 21, 22, and 23 except for the side 24 (refer to Figure 3A , Figure 3B and Figure 4A , Figure 4B ) of the support part 11 that becomes a hinge. Since such cutting work is not required, it is possible to prevent the support part 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 part 11 does not tilt, it is convenient for walking, and the time spent on cutting and installing the fixing metal fittings 13 can be saved.

[0321] Hereinafter, each part of the floating plate assembly 100 (the trestle 110, the collective floating plate part 120, and the connecting floating plate part 130) will be described in detail.

[0322] 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 passage is formed around or across the center of the collective floating plate part 120.

[0323] This passage is the part for workers to walk during maintenance, etc., and is also the place for laying cables, etc. from each solar panel 50.

[0324] 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 provided on the floating plate assembly 100 of the present embodiment.

[0325] It should be noted that, in Figure 14 , the case where the trestle 110 with a linear linear floating plate part is used is shown. Here, the trestle 110 can also be set as needed and not necessarily linear. For example, it can be a trestle with an L-shaped linear floating plate part, etc.

[0326] In the connecting part between the trestle 110 and the collective floating plate part 120, since stress is likely to be applied when the floating plate assembly 100 attempts to move due to wind or the like, there is a risk of damage. Therefore, they should not be directly connected. Instead, they are connected through a connecting floating plate part 130 between the collective floating plate part 120 and the trestle 110.

[0327] Specifically, in the connecting floating plate part 130, the number of floating plates 10 in the width direction is more than that of the floating plates 10 in the width direction of the trestle 110, and it 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.

[0328] It should be noted that in this embodiment, only the connecting floating plate part 130 with only one row (or one section) of floating plates 10 connected in the width direction is shown. The connecting floating plate part 130 can also be configured with multiple sections of floating plates 10 connected in the width direction.

[0329] 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.

[0330] If the floating plate assembly 100 is configured in this way, its trestle 110 is arranged from the solar panel 50 to the collective floating plate part 120 towards the land direction. Therefore, cables can be laid on the trestle 110, making it extremely easy to perform work such as cable maintenance.

[0331] Moreover, different from laying in water, it is not necessary to let the cable hang down to the bottom of the water, so the length of the necessary cable can be shortened.

[0332] Incidentally, if the trestle 110 is connected to the east and west sides 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.

[0333] 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.

[0334] Figure 15 It is a schematic diagram showing another example of the floating plate assembly 100.

[0335] In the floating plate assembly 100 shown as Figure 15 below, the connecting floating plate portion 130 is omitted, and the trestle 110 is directly connected to the floating plate 10 at the base end portion on the side of the collective floating plate portion 120, on the floating plate 10.

[0336] In this case, the trestle 110 has a plurality of linearly arranged floating plate portions (for example, three or more) placed side by side in such a manner that stress can be applied to the connecting portion between the collective floating plate portion 120 and the trestle 110, and adjacent linearly arranged floating plate portions are connected by a passage joint 60.

[0337] Moreover, when laying a cable on the trestle 110, it is preferable that the central side of the trestle 110 is arranged to be able to lay the cable, and the ends of the trestle 110 are used as passages, thereby suppressing the cable from falling into the water.

[0338] In addition, if the cable is laid along either side of the trestle 110, the balance of the trestle 110 will deteriorate, 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 walking when workers or the like walk on the trestle 110 can be formed.

[0339] It should be noted that there is also a case of a floating plate assembly 100 having a connecting floating plate portion 130 as shown as Figure 14 below, and the trestle 110 has a plurality of linearly arranged floating plate portions (for example, three or more) placed side by side as shown as Figure 15 below.

[0340] Incidentally, the cable CA from the solar panel 50 (refer to Figure 17 ), if schematically shown as an example, can be laid, for example, in the manner of the solid line 140 as shown as Figure 16 below.

[0341] On the other hand, there is a case of laying the cable CA (refer to Figure 16 ) as shown by the dotted line 145 in Figure 17 below. In this case, how to handle the other end portion 52 of the solar panel 50 (refer to Figure 1 and Figure 2 ) side is a problem.

[0342] 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 the laying work to be easily carried out. Figure 17 below.

[0343] Figure 17 It is used to illustrate that when laying a cable CA in the form of a dotted line 145 as shown in Figure 16 (see Figure 17 ), it is a schematic diagram of a modified example of a floating plate 10 having a structure suitable for the laying method of the cable CA (see Figure 17 ).

[0344] It should be noted that Figure 17 shows the state before the solar panel 50 is provided on the floating plate 10 on the left side, and is represented by a double-dotted line when the solar panel 50 is provided.

[0345] In a modified example of the floating plate 10 as shown in Figure , the depths of a pair of groove portions 35 on the central side of the groove portion 35 as shown in ​ , ​ are made to be the depth as shown in ​ , and the receiving portion 12 on the other end portion 52 side for receiving the solar panel 50 is provided such that the groove portion 35 extends on the other end portion 52 side to form a passage for the cable CA to pass through.

[0346] 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 as shown by the dotted line 145 in ​ .

[0347] In the case of laying in the form of the dotted line 145, except for the part of the cable CA laid at the access joint 60, the rest is located under the solar panel 50 and is difficult to be exposed to rain or the like, so the effect of suppressing the deterioration of the cable CA can be obtained.

[0348] 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.

[0349] The above is an explanation of the present invention based on specific embodiments, but the present invention is not limited to the embodiments.

[0350] 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 for connecting the cable CA from the solar panel 50 can also be provided, and the cable is laid from this power conditioner to the land.

[0351] In addition, the trestle 110 can be provided only near the land instead of being directly fixed to the land.

[0352] 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 trestle 110.

[0353] However, in the case where the trestle 110 is not fixed to the land in this way, since the windward areas and weights of the trestle 110 and the collective floating plate portion 120 are different, there may be a situation where the moving manners of the trestle 110 and the collective floating plate portion 120 themselves are different. Therefore, it is preferable to configure it into a structure that can suppress breakage of the above-mentioned trestle 110.

[0354] In addition, on the contrary, when the trestle 110 is set to a state where it can move freely, the connecting portion connected to the collective floating plate portion 120 is liable to be subjected to stress. Therefore, the trestle 110 should be moored at an appropriate position, and it is preferable to moor mooring members such as anchor ropes to the floating plate 10 for the trestle 110 as well.

[0355] 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 the hinge for raising the support portion 11 on the floating plate 10 of the trestle 110 is not required. However, an opening 26 is necessary when mooring mooring members such as anchor ropes to the floating plate 10.

[0356] Therefore, as described above, when mooring mooring members such as anchor ropes to the floating plate 10 of the trestle 100, only the floating plate 10 for mooring and fixing mooring members such as anchor ropes among the floating plates 10 for the trestle 110 needs to be subjected to the cutting process for the three sides 21, 22, and 23.

[0357] Moreover, when not performing mooring work, it is preferable that the opening 26 formed by raising the support portion 11 is in a closed state for easy walking.

[0358] Therefore, on the floating plate 10 of the trestle 100 to which the mooring members such as anchor ropes are moored, usually, as described in the explanation with reference to ​ a fixing fitting 13 is provided on the support portion 11, and the opening 26 is closed in such a way that the support portion 11 does not fall off toward the back wall 17 side.

[0359] (Rotation of the floating plate) Incidentally, the passage joint 60 is combined with the floating plate 10 on the upper surface of each floating plate 10, and the floating plates 10 are combined with each other at a specified interval in the connection direction of the passage joint 60. Therefore, a specified gap is formed between adjacent floating plates 10.

[0360] 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.

[0361] In the floating plate assembly 100 having the above 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.

[0362] 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.

[0363] That is to say, the above-mentioned floating plate assembly 100 as a modified example can track the sun very well. The floating plate assembly 100 floats on the water surface. For example, compared with the case where it is set on the ground, only a very small force is needed to rotate it, so that it can track the sun. It should be pointed out that the rotation mentioned here is a rotation in a broad sense, and also includes a rotation that changes the direction of the floating plate assembly 100. In addition, there is no limitation on the angle of rotation, as long as it can effectively receive sunlight (the maximum can be 180 degrees). In addition, its rotation is carried out during the day, and there is no need to move suddenly. It can move every moment or at a fixed time. Therefore, the wave-making resistance can become small enough to be negligible.

[0364] In addition, a gap is formed between each of the floating plates 10 connected to each other, through which water can pass. Therefore, when the floating plate assembly 100 is rotated, the resistance of water can be reduced, so that it can be rotated with less force.

[0365] ​It is a schematic diagram showing an example of the connection of the towing ropes for rotating the floating board assembly 100 involved in the modification example. Since the floating board assembly 100 floats in water and has little resistance to water, the rotation operation can be completed with a very small force.

[0366] For example, ​ It shows an example where the towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating board 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 board assembly 100 can be rotated clockwise. When pulling the towing ropes 102 and 104, the floating board 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 board assembly 100 can be rotated by operating the towing ropes 101 to 104, so that the solar panel 50 can follow the sun.

[0367] ​ It shows an example where the towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating board 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 board assembly 100 can be rotated counterclockwise. When pulling the towing ropes 102 and 104, the floating board assembly 100 can be rotated clockwise.

[0368] ​ It shows an example where the towing ropes 101, 102, 103, and 104 are connected to the four corners of the rectangular floating board assembly 100, and while pulling the towing ropes 101 and 102 on the long side in opposite directions on one side, the towing ropes 103 and 104 on the long side cross each other on the other side. By pulling the towing ropes 101 and 104, the floating board assembly 100 can be rotated counterclockwise. When pulling the towing ropes 102 and 103, the floating board assembly 100 can be rotated clockwise.

[0369] ​ and ​ It shows an example when the towing ropes are connected to three positions of the floating board assembly 100. ​ It 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 a towing rope 101 is connected to the center of one long side of the rectangular floating plate assembly 100, while towing ropes 102 and 103 are connected to both ends of the other long side, and the towing rope 101 is 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 plate assembly 100 can be rotated clockwise or counterclockwise with the towing rope 101 connected to the center of the long side as the center.

[0370] For the solar power generation device of this embodiment, it only needs to tow the floating plate assembly 100 with a small water resistance by using a towing rope to make it follow the sun. As a device for following the sun, it is only the towing rope and the driving device for pulling the towing rope. 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 to follow 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.

[0371] As described above, according to this embodiment, it is possible to provide a resin floating plate for a solar cell panel that suppresses expansion and contraction, a resin floating plate for a solar cell panel that can stably fix the solar cell panel, and a manufacturing method of such a floating plate. When forming the collective floating plate portion, it can be made into a collective floating plate portion with a high degree of freedom in the position of fixing mooring components such as anchor ropes. In addition, it is possible to provide a resin floating plate for a solar cell 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 reduce the time required for maintenance inspections and the like.

[0372] 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.

Claims

1. A floating board, which is a resin floating board for a solar panel, is characterized in that, Comprising: 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 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 which is disposed on the lower side of the solar panel, and the other end side is fixed to the mounting portion. The lower metal fitting is engaged or fixed to the solar panel.

2. The floating board according to claim 1, wherein Comprising: 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 which is disposed on the upper side of the solar panel, and the other end side is fixed to the mounting portion. The upper metal fitting clamps together with the lower metal fitting in such a manner that one end side presses the solar panel toward the lower metal fitting side. 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.

3. The floating plate according to claim 1 or 2, characterized in that The lower metal fitting is provided with a U-shaped hook portion at one end side. The lower metal fitting is engaged with the solar panel by engaging the hook portion at the engaging portion capable of engaging the hook portion provided on the solar panel.

4. A floating board, which is a resin floating board for a solar panel, is characterized in that, Comprising: A receiving portion, which is provided on the other end side for receiving the other end side of the solar panel; And A mounting portion, which is provided on the other end side near the receiving portion for mounting and fixing the fixing metal fitting on the other end side of the solar panel; The mounting portion includes: A first recess, the back wall of which is recessed toward the front wall side and has a peripheral wall portion; And A nut receiving portion, the front wall of which is recessed toward the back wall side for receiving and fixing a nut; The bottom of the nut receiving portion as the back wall side and the bottom of the first recess as the front wall side are integrated.

5. The floating plate according to claim 4, characterized in that It includes an inclined portion, which is provided near the other end side, and the front wall approaches the back wall side from one end side toward the other end side. The receiving portion is a standing wall portion where the front wall stands up from the end of the other end side of the inclined portion in a direction away from the back wall. The portion of the peripheral wall portion of the first recess located on the standing wall side is integrated with the standing wall portion.

6. The floating plate according to claim 4 or 5, characterized in that The mounting portion includes: A pair of the nut receiving portions, which are spaced apart along the direction of the receiving portion; and A second recess, which is located on the other end side of the straight line connecting the nut receiving portions and at a position between the nut receiving portions along the direction of the receiving portion, and is further recessed from the bottom surface of the first recess toward the front wall side. Wherein, the bottom of the second recess on the front wall side is integrated with the front wall.

7. The floating board according to claim 4 or 5, characterized in that, A plurality of the mounting portions are provided along the direction of the receiving portion.

8. The floating plate according to claim 4 or 5, characterized in that The mounting portion includes: A rivet nut, which is fixed to the nut receiving portion. A screw that is screwed with the rivet nut and fixes the fixing metal fitting on the other end side; and The fixing metal fitting on the other end side that fixes 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 arranged on the lower side of the solar panel and an upper metal fitting with one end side arranged on the upper side of the solar panel. The other end sides of the lower metal fitting and the upper metal fitting can be simultaneously fixed on the rivet nut by the screw, so that the lower side and the upper side of the solar panel can be fixed.

9. The floating plate according to claim 8, wherein The upper metal fitting clamps together with the lower metal fitting in such a way that one end side presses the solar panel against the lower metal fitting side. 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 at an engaging portion capable of engaging the hook portion provided on the solar panel.

10. The floating board according to claim 4 or 5, characterized in that, Comprising: 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. Edges other than the edge at one end side of the support portion are cut off so that the edge at one end side 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, the surface of the support portion facing one end side in the erected state of the support portion. 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 way that the distance between the clamping portion and the support portion is variable.

11. A manufacturing method of a resin floating plate for a solar panel, the resin floating plate for a solar panel includes a receiving portion that receives the other end side of the solar panel at the other end side; and an installation portion that is provided near the receiving portion and installs and fixes the fixing metal fitting at the other end side of the solar panel. The feature of the manufacturing method of the resin floating plate for a solar panel is that The installation portion is formed by integrating the bottom on the back wall side of a nut receiving portion that is formed by recessing the front wall toward the back wall side and houses a fixing nut, and the bottom 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 side.

12. A floating board, which is a resin floating board for a solar panel, is characterized in that, Comprising: An annular floating plate portion having an opening; And A mooring portion that is provided near the opening and moors a mooring member formed by combining a front wall and a back wall.

13. The floating plate according to claim 12, wherein Comprising a support portion which is formed by combining a surface wall and a back wall corresponding to the opening portion, and which stands up toward the surface wall side in such a manner that the edge connected to the inner wall surface on one end side of the opening portion serves as a hinge to open the opening portion, and supports one end side of the solar panel. The mooring portion is provided near the other end side of the opening portion.

14. The floating board according to claim 13, characterized in that, Comprising: A one-end-side fixing fitting which is installed on the side opposite to the hinge of the support portion and which clamps one end side of the solar panel together with the support portion. And A stopper portion which is provided near both ends of the edge portion of the other end side of the opening portion, and which receives a part of the one-end-side fixing fitting when the support portion is laid down in such a manner as to block the opening portion in a state where the one-end-side fixing fitting is installed on the support portion.

15. The floating plate according to claim 14, wherein The one-end-side fixing fitting comprises: A fixing portion which is fixed on the side opposite to the hinge, that is, on the surface of the support portion facing the one end side in a state where the support portion stands up; and A clamping portion which is provided to extend from the fixing portion in a direction substantially orthogonal to the fixing portion, and which clamps the solar panel together with the support portion. A finger insertion recess into which a finger can be inserted is provided on the surface of the support portion facing the one end side in a state where the support portion stands up, between the fixing portion and the support portion.

16. The floating board according to any one of claims 12 to 15, characterized in that, The mooring portion is provided at substantially the center of the floating plate.

17. The floating board according to any one of claims 12 to 15, characterized in that, Comprising: An eyebolt which fixes the mooring member; And A nut which is screwed onto the eyebolt. The mooring portion has a first through hole through which the eyebolt passes.

18. The floating board according to claim 17, wherein Comprising: A first fixing plate which is disposed on the surface wall side or the back wall side of the mooring portion; A pair of first bolts which fix the first fixing plate; And A pair of first nuts which are screwed onto the first bolts. The mooring portion has a pair of second through holes through which the first nuts provided with the first through hole interposed therebetween pass. The first fixing plate is provided corresponding to the first through hole and the second through hole, and has through holes through which the eyebolt and the first bolts pass. The first through hole and the second through hole are arranged side by side on the mooring portion in a direction along the edge portion of the other end side of the opening portion.

19. The floating plate according to claim 18, wherein The first through hole has a tapered portion which is formed by the surface wall being recessed toward the back wall side in a shape with a gradually tapering front end. Comprising a second fixing plate which is provided on the surface wall of the mooring portion so as to cover the tapered portion when the first fixing plate is disposed on the back wall side. The second fixing plate is provided corresponding to the first through hole, and has a through hole through which the eyebolt passes.

20. A solar power generation device which floats a floating plate aggregate formed by connecting solar panels with floating plates on water and which tracks the sun by traction, wherein Each floating plate in the floating plate aggregate is connected to an adjacent floating plate with a given interval therebetween.

21. The solar power generation device according to claim 20, wherein the intervals between the floating plates are constant.

22. The solar power generation device according to claim 21, wherein adjacent floating plates are connected by a passage joint which is a plastic molded body, and the passage joint is disposed at an interval from the water surface.

23. The solar power generation device according to any one of claims 20 to 22, wherein one solar panel is provided on one floating plate.

24. The solar power generation device according to any one of claims 20 to 22, wherein the floating plate assembly is substantially rectangular, and ropes for traction are connected to its four corners.

25. The solar power generation device according to any one of claims 20 to 22, wherein the floating plate assembly is substantially rectangular, ropes for traction are connected to both ends of one side thereof, and a rope for traction is connected to a substantially central position of the side opposite to the said side.

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