Structure

Abstract

To obtain a structure that allows easy transport of a group of members aggregated for constructing the structure.SOLUTION: The structure is configured by stacking units, each unit being formed by connecting tops of a pair of regular tetrahedral ring trusses, and each regular tetrahedral ring truss being formed by connecting four annular frame rings.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to structures. [Background technology]

[0002] Patent Document 1 describes a dome-shaped or tunnel-shaped structure that is made by bending a flexible thin plate material into a ring shape and attaching it to a base material, with the objective of developing a lightweight, rounded, simple structure that can be easily assembled and disassembled. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-121703 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, structures are constructed using multiple linear members such as columns and beams. Furthermore, the length and cross section of the columns and beams vary depending on the location where they are used, so a wide variety of members are used. In such a configuration, the volume of the members used to construct a structure becomes large when they are collected, making it difficult to transport the collected group of members at once.

[0005] An object of the present disclosure is to obtain a structure that allows easy transport of a group of components that are aggregated together to construct the structure. [Means for solving the problem]

[0006] The structure according to the first aspect is characterized in that it is constructed by connecting four circular frame rings to form a regular tetrahedron ring truss, connecting the tops of a pair of the regular tetrahedron ring trusses to form a unit, and stacking the units.

[0007] According to the above aspect, the members for constructing the structure are annular frame rings, which reduces the volume of the members when they are collected together, making it possible to obtain a structure in which the group of members collected together for constructing the structure can be easily transported.

[0008] In the structure according to the second aspect, in the structure described in the first aspect, the plurality of frame rings are aggregated by being stacked in at least one direction of the central axis and the radial direction of the frame rings.

[0009] According to the above aspect, a compact integrated configuration can be achieved by stacking the frame rings in at least one direction of the central axis direction and the radial direction of the frame rings.

[0010] A structure according to a third aspect is the structure according to the first or second aspect, characterized in that a disk member is provided inside the frame ring.

[0011] According to the above aspect, by stacking the disk members that constitute the structure, it is possible to easily transport a group of disks that have been aggregated. [Effects of the Invention]

[0012] According to the present disclosure, a structure can be obtained that allows for easy transport of a group of components that are aggregated together to construct the structure. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a front view illustrating a structure according to an embodiment of the present disclosure. [Figure 2] 1A and 1B are perspective views showing a ring unit for constructing a structure according to an embodiment of the present disclosure and a connecting portion between frame rings. [Figure 3] 1 is a perspective view showing a plurality of types of frame rings for constructing a structure according to an embodiment of the present disclosure. FIG. [Figure 4]FIG. 10 is a perspective view showing a connecting portion between ring units for constructing a structure according to an embodiment of the present disclosure. [Figure 5] FIG. 10 is a perspective view showing a connecting portion between ring units for constructing a structure according to an embodiment of the present disclosure. [Figure 6] FIG. 2 is a plan view of a lower portion of a structure according to an embodiment of the present disclosure viewed from above. [Figure 7] FIG. 2 is a plan view of a vertically central portion of a structure according to an embodiment of the present disclosure, viewed from above. [Figure 8] FIG. 2 is a plan view of an upper portion of a structure according to an embodiment of the present disclosure viewed from above in the vertical direction. [Figure 9] FIG. 1 is a perspective view showing a state in which a mirror is attached to a ring unit for constructing a structure according to an embodiment of the present disclosure. [Figure 10] FIG. 10 is a schematic diagram showing only a plurality of mirrors attached to a ring unit for constructing a structure according to an embodiment of the present disclosure. [Figure 11] 1 is a perspective view showing an aggregation case in which frame rings and the like for constructing a structure according to an embodiment of the present disclosure are aggregated. FIG. [Figure 12] FIG. 1 is a perspective view illustrating a frame ring for constructing a structure according to an embodiment of the present disclosure and a mirror assembled together. [Figure 13] FIG. 10 is a schematic diagram showing only a number of mirrors attached to a ring unit for constructing a structure according to a variation on an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0014] An example of a structure according to an embodiment of the present disclosure will be described with reference to Figures 1 to 13. Note that arrow H shown in each figure indicates the up-down direction, i.e., the vertical direction, arrow W shown in each figure indicates the width direction perpendicular to arrow H and also the horizontal direction, and arrow D shown in each figure indicates the depth direction perpendicular to arrows H and W and also the horizontal direction.

[0015] The drawings used in the following description are all schematic, and the dimensional relationships and ratios of elements shown in the drawings do not necessarily correspond to the actual ones.

[0016] As shown in Fig. 1, the structure 100 includes a ring unit 30 formed using a plurality of annular frame rings 10 (see Fig. 2(A)), and a disk-shaped mirror 50 (see Fig. 9). First, the ring unit 30 constituting the structure 100 will be described.

[0017] (Ring Unit 30) As shown in Fig. 2(A), the ring unit 30 is constructed by connecting four frame rings 10 to form a regular tetrahedron ring truss 20 and connecting the tops of a pair of regular tetrahedron ring trusses 20. The frame ring 10 is an example of an aggregated member, and the ring unit 30 is an example of a unit.

[0018] Here, the regular tetrahedron ring truss 20 is a tetrahedron formed by arranging frame rings 10 so as to be inscribed in the triangles that form a regular tetrahedron and connecting adjacent frame rings 10.

[0019] 2(A) and 2(B), the frame ring 10 is provided with connectors 12 spaced apart in the circumferential direction, and these connectors 12 have connecting holes 14 with internally formed female threads. The connectors 12 of one frame ring 10 and the connectors 12 of another frame ring 10 are arranged to face each other, and one connecting bolt 16 is fastened to the internal threads of the connecting holes 14 of the pair of opposed connectors 12, thereby connecting the one frame ring 10 to the other frame ring 10.

[0020] Here, the frame ring 10 is formed by shaping a member with a circular cross section into a ring shape, and the diameter of the cross section is, for example, 0.09 [m]. Furthermore, ten types of frame rings 10 with different ring diameters are used. In the following description, the ten types of frame rings 10 will be referred to as frame rings 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10j, and 10k. Note that when referring to a particular type of frame ring 10, the final alphabet may be omitted.

[0021] Specifically, as shown in FIG. 3, the structure 100 uses a plurality of frame rings 10a with a diameter of 4 [m], a plurality of frame rings 10b with a diameter of 3.82 [m], a plurality of frame rings 10c with a diameter of 3.64 [m], a plurality of frame rings 10d with a diameter of 3.46 [m], a plurality of frame rings 10e with a diameter of 3.28 [m], a plurality of frame rings 10f with a diameter of 3.1 [m], a plurality of frame rings 10g with a diameter of 2.92 [m], a plurality of frame rings 10h with a diameter of 2.74 [m], a plurality of frame rings 10j with a diameter of 2.56 [m], and a plurality of frame rings 10k with a diameter of 2.38 [m].

[0022] In the following description, a regular tetrahedron ring truss formed by frame rings 10a will be referred to as a regular tetrahedron ring truss 20a, and a ring unit formed by a pair of regular tetrahedron ring trusses 20a will be referred to as a ring unit 30a. In this manner, the alphabet at the end of the name indicates the type of frame ring 10 used. Furthermore, the connector 12 provided on the frame ring 10a will be referred to as a connector 12a.

[0023] (Structures 100) As described above, the structure 100 is configured to include a plurality of ring units 30 stacked in the vertical direction, and a disk-shaped mirror 50 attached to the frame ring 10 that constitutes the ring unit 30.

[0024] [A range shown in Figure 1] In the structure 100, in a range A above the ground line G shown in Fig. 1, two layers of ring units 30a are provided in the vertical direction. Specifically, as shown in Fig. 4, the frame ring 10a at the upper end of the ring unit 30a in the first layer and the frame ring 10a at the lower end of the ring unit 30a in the second layer are shared.

[0025] Also, when viewed from above, three ring units 30a are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30a are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12a as shown in Figure 2(B).

[0026] [Range B shown in Figure 1] In the structure 100, in a range B above the range A shown in Fig. 1, two layers of ring units 30b are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10b at the bottom of the ring unit 30b in the first layer is arranged so as to be surrounded by the frame ring 10a at the top of the ring unit 30a in the second layer. Then, as shown in Fig. 2(B), the ring unit 30b in the first layer and the ring unit 30a in the second layer are connected by fastening one connecting bolt 16 into the female threads of the connecting holes 14 of the pair of connectors 12a, 12b.

[0027] Furthermore, as shown in FIG. 4, the frame ring 10b at the upper end of the ring unit 30b in the first layer and the frame ring 10b at the lower end of the ring unit 30b in the second layer are shared.

[0028] Also, when viewed from above, three ring units 30b are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30b are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12b as shown in Figure 2(B).

[0029] [Range C shown in Figure 1] In the structure 100, in a range C above the range B shown in Fig. 1, two layers of ring units 30c are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10c at the bottom of the ring unit 30c in the first layer is arranged so as to be surrounded by the frame ring 10b at the top of the ring unit 30b in the second layer. Then, as shown in Fig. 2(B), the ring unit 30c in the first layer and the ring unit 30b in the second layer are connected by fastening one connecting bolt 16 into the female threads of the connecting holes 14 of the pair of connectors 12b, 12c.

[0030] Furthermore, as shown in FIG. 4, the frame ring 10c at the upper end of the ring unit 30c in the first layer and the frame ring 10c at the lower end of the ring unit 30c in the second layer are shared.

[0031] Also, when viewed from above, three ring units 30c are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30c are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12c as shown in Figure 2(B).

[0032] [Range D shown in Figure 1] In the structure 100, in a range D above the range C shown in Fig. 1, two layers of ring units 30d are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10d at the lower end of the ring unit 30d in the first layer is arranged so as to be surrounded by the frame ring 10c at the upper end of the ring unit 30c in the second layer. Then, as shown in Fig. 2(B), the ring unit 30d in the first layer and the ring unit 30c in the second layer are connected by fastening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connectors 12c, 12d.

[0033] Furthermore, as shown in FIG. 4, the frame ring 10d at the upper end of the ring unit 30d in the first layer and the frame ring 10d at the lower end of the ring unit 30d in the second layer are shared.

[0034] Also, when viewed from above, three ring units 30d are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30d are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12d as shown in Figure 2(B).

[0035] [Range E shown in Figure 1] In the structure 100, in an E range above the D range shown in Fig. 1, two layers of ring units 30e are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10e at the bottom of the ring unit 30e in the first layer is arranged so as to be surrounded by the frame ring 10d at the top of the ring unit 30d in the second layer. Then, as shown in Fig. 2(B), the ring unit 30e in the first layer and the ring unit 30d in the second layer are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of the pair of connectors 12d, 12e.

[0036] Furthermore, as shown in FIG. 4, the frame ring 10e at the upper end of the ring unit 30e in the first layer and the frame ring 10e at the lower end of the ring unit 30e in the second layer are shared.

[0037] Also, when viewed from above, three ring units 30e are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30e are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12e as shown in Figure 2(B).

[0038] [F range shown in Figure 1] In the structure 100, in the F range above the E range shown in Fig. 1, two layers of ring units 30f are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10f at the bottom of the ring unit 30f in the first layer is arranged so as to be surrounded by the frame ring 10e at the top of the ring unit 30e in the second layer. Then, as shown in Fig. 2(B), the ring unit 30f in the first layer and the ring unit 30e in the second layer are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of the pair of connectors 12e, 12f.

[0039] Furthermore, as shown in FIG. 4, the frame ring 10f at the upper end of the ring unit 30f in the first layer and the frame ring 10f at the lower end of the ring unit 30f in the second layer are shared.

[0040] Also, when viewed from above, three ring units 30f are arranged in a triangular shape as shown in Figure 6, and adjacent ring units 30f are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12f as shown in Figure 2(B).

[0041] [G range shown in Figure 1] In the structure 100, in the G range above the F range shown in Fig. 1, three layers of ring units 30g are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10g at the bottom of the ring unit 30g in the first layer is arranged so as to be surrounded by the frame ring 10f at the top of the ring unit 30f in the second layer. Then, as shown in Fig. 2(B), the ring unit 30g in the first layer and the ring unit 30f in the second layer are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connectors 12f, 12g.

[0042] Furthermore, the frame ring 10g at the upper end of the ring unit 30g of the first layer and the frame ring 10g at the lower end of the ring unit 30g of the second layer, and the frame ring 10g at the upper end of the ring unit 30g of the second layer and the frame ring 10g at the lower end of the ring unit 30g of the third layer are shared, as shown in Figure 4.

[0043] Also, when viewed from above, two ring units 30g are arranged side by side at an angle to the depth direction, as shown in Figure 7, and adjacent ring units 30g are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12g, as shown in Figure 2(B).

[0044] [H range shown in Figure 1] In the structure 100, in the H range above the G range shown in Fig. 1, three layers of ring units 30h are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10h at the bottom of the ring unit 30h in the first layer is arranged so as to be surrounded by the frame ring 10g at the top of the ring unit 30g in the third layer. Then, as shown in Fig. 2(B), the ring unit 30h in the first layer and the ring unit 30g in the third layer are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connectors 12g, 12h.

[0045] Furthermore, the frame ring 10h at the upper end of the ring unit 30h in the first layer and the frame ring 10h at the lower end of the ring unit 30h in the second layer, and the frame ring 10h at the upper end of the ring unit 30h in the second layer and the frame ring 10h at the lower end of the ring unit 30h in the third layer are shared, as shown in Figure 4.

[0046] Also, when viewed from above, two ring units 30h are arranged side by side at an angle to the depth direction, as shown in Figure 7, and adjacent ring units 30h are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12h, as shown in Figure 2 (B).

[0047] [J range shown in Figure 1] In the structure 100, in the J range above the H range shown in Fig. 1, three layers of ring units 30j are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10j at the bottom of the ring unit 30j in the first layer is arranged so as to be surrounded by the frame ring 10h at the top of the ring unit 30h in the third layer. Then, as shown in Fig. 2(B), the ring unit 30j in the first layer and the ring unit 30h in the third layer are connected by fastening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connectors 12h, 12j.

[0048] Furthermore, the frame ring 10j at the upper end of the ring unit 30j in the first layer and the frame ring 10j at the lower end of the ring unit 30j in the second layer, and the frame ring 10j at the upper end of the ring unit 30j in the second layer and the frame ring 10j at the lower end of the ring unit 30j in the third layer are shared, as shown in Figure 4.

[0049] Also, when viewed from above, two ring units 30j are arranged side by side at an angle to the depth direction, as shown in Figure 7, and adjacent ring units 30j are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connecting devices 12j, as shown in Figure 2(B).

[0050] [K range shown in Figure 1] In the structure 100, in the K range above the J range shown in Fig. 1, six layers of ring units 30k are provided in the vertical direction. Specifically, as shown in Fig. 5, the frame ring 10k at the bottom of the ring unit 30k in the first layer is arranged so as to be surrounded by the frame ring 10j at the top of the ring unit 30j in the third layer. Then, as shown in Fig. 2(B), the ring unit 30k in the first layer and the ring unit 30j in the third layer are connected by tightening one connecting bolt 16 into the female threads of the connecting holes 14 of a pair of connectors 12j, 12k.

[0051] Furthermore, at the connection portion of each ring unit 30k stacked in the vertical direction, the frame ring 10k at the upper end of the lower ring unit 30k and the frame ring 10k at the lower end of the upper ring unit 30k are shared, as shown in Fig. 4. Also, when viewed from above, one ring unit 30k is provided, as shown in Fig. 8.

[0052] [Disc-shaped mirror 50] The mirror 50 is disk-shaped and, as shown in FIG. 9 , is disposed inside one of the frame rings 10 and attached to the frame ring 10. Specifically, the structure 100 includes a mounting pipe 60 that mounts the mirror 50 to the frame ring 10, and the mirror 50 is attached to the frame ring 10 by the mounting pipe 60. The diameter of this mounting pipe 60 is, for example, 0.1 m. The mirror 50 is an example of a disk member. Furthermore, the mirror 50 and the mounting pipe 60 are an example of an integrated member.

[0053] The diameter of the mirror 50 is smaller than the diameter of the frame ring 10k, and in this embodiment, the diameter of the mirror 50 is, for example, 2 [m], and the thickness of the mirror 50 is, for example, 0.09 [m]. The mirror 50 is a half mirror, and light is reflected by a front surface 50a of the mirror 50, and light that strikes a back surface 50b of the mirror 50 is transmitted through the mirror 50.

[0054] Specifically, the mirror 50 is disposed so that its surface 50a faces the outside of the ring unit 30. Both horizontal ends of the mirror 50 are attached to the frame ring 10 via mounting pipes 60 that extend horizontally. The mirror 50 is also designed to rotate around the pair of mounting pipes 60 as axes.

[0055] By appropriately adjusting the mounting angle of the mirror 50, as shown in Figure 10, light emitted from stars in the night sky, sunlight, or light from other light sources can be reflected by the mirror 50 or transmitted through the mirror 50, thereby making it possible to capture natural phenomena at the base end of the structure 100.

[0056] (Consolidation of materials) The following describes the assembly (storage) of the frame ring 10, mirror 50, and mounting pipe 60, which are components for constructing the structure 100. To assemble these components, an assembly case 70 is used, as shown in Fig. 11. The assembly case 70 is cylindrical with a bottom, and the inner diameter (D1 in the figure) of the assembly case 70 is, for example, 4 [m].

[0057] 12, 45 frame rings 10a are stacked in the central axial direction of the frame ring 10 (hereinafter referred to as the "axial direction"), 45 frame rings 10b are stacked inside them in the axial direction, and 45 frame rings 10c are stacked inside them in the axial direction. In this way, the frame rings 10a, 10b, and 10c are stacked in the radial direction of the frame ring 10 (hereinafter referred to as the "radial direction").

[0058] Furthermore, 45 frame rings 10d are stacked in the axial direction inside the 45 frame rings 10c, 45 frame rings 10e are stacked in the axial direction inside them, 45 frame rings 10f are stacked in the axial direction inside them, and 45 frame rings 10g are stacked in the axial direction inside them. In this way, the frame rings 10d, 10e, 10f, and 10g are stacked in the radial direction.

[0059] Additionally, 45 frame rings 10h are stacked in the axial direction inside the 45 frame rings 10g, 45 frame rings 10j are stacked in the axial direction inside them, and 45 frame rings 10k are stacked in the axial direction inside them. In this way, the frame rings 10h, 10j, and 10k are stacked in the radial direction.

[0060] Furthermore, 45 mirrors 50 are stacked in the axial direction inside the 45 frame rings 10k. Furthermore, a plurality of mounting pipes 60 are inserted so as to extend in the axial direction into the gaps formed between the axially stacked frame rings 10k and the axially stacked mirrors 50, and the mounting pipes 60 are arranged so as to surround the mirrors 50.

[0061] By combining the frame ring 10, the mirror 50, and the mounting pipe 60 in this manner, the frame ring 10, the mirror 50, and the mounting pipe 60 can be housed in a collecting case 70 shown in FIG.

[0062] (summary) As described above, in the structure 100, four annular frame rings 10 are connected to form a regular tetrahedron ring truss 20, and the tops of a pair of regular tetrahedron ring trusses 20 are connected to form a ring unit 30, and the ring units 30 are stacked to form the structure 100. These frame rings 10 are then aggregated by stacking them in the axial direction, as shown in Fig. 12. This allows the group of aggregated frame rings 10 to be easily transported.

[0063] Furthermore, in the structure 100, the plurality of frame rings 10 are aggregated by being stacked in the radial direction of the frame rings 10. This allows the group of aggregated frame rings 10 to be easily transported.

[0064] In addition, in the structure 100, a disk-shaped mirror 50 is provided inside the frame ring 10. By stacking these mirrors 50 and arranging the stacked mirrors 50 inside the frame ring 10k that is stacked in the axial direction, the group of aggregated mirrors 50 can be easily transported.

[0065] Although the present disclosure has been described in detail with respect to a specific embodiment, it will be apparent to those skilled in the art that the present disclosure is not limited to such an embodiment and that various other embodiments are possible within the scope of the present disclosure. For example, although not specifically described in the above embodiment, the angle of the mirror 50 can be changed to direct light to a desired location.

[0066] In the above embodiment, the connector 12 of one frame ring 10 and the connector 12 of another frame ring 10 are arranged to face each other, and one connector bolt 16 is fastened to the female threads of the connector holes 14 of the pair of opposed connectors 12, thereby connecting one frame ring 10 to another frame ring 10. However, the connection is not limited to this, and for example, bands, clips, etc. may also be used for connection.

[0067] Furthermore, in the above embodiment, no particular description is given regarding the material of the frame ring, but CFRP (Carbon Fiber Reinforced Plastics), steel, aluminum, or the like may be used, and the material can be selected appropriately.

[0068] Furthermore, although not specifically described in the above embodiment, the upper frame rings 10 used in the structure 100 have smaller diameters than the lower frame rings 10. This improves bending rigidity and makes it easier to achieve balance compared to when all frame rings have the same diameter.

[0069] Although not specifically explained in the above embodiment, by clarifying the sequence of steps for assembling the frame ring 10, it becomes possible to construct a structure unmanned using a robot or the like.

[0070] In the above embodiment, a half mirror is used as the disk member, but a normal mirror or an exterior wall material may also be used as the disk member.

[0071] Although not specifically described in the above embodiment, the cross section of the frame ring 10, which has a circular cross section, may be solid or cylindrical. For example, the frame ring 10 at the bottom may be solid, and the others may be cylindrical, with the thickness gradually decreasing upward.

[0072] 13, the mirror 50 at the lower end portion may be disposed inside the building 120. By appropriately adjusting the mounting angle of the mirror 50, light emitted from stars in the night sky, sunlight, or light from other light sources may be reflected by or transmitted through the mirror 50, thereby allowing natural phenomena to be captured in the building 120.

[0073] Although not specifically described in the above embodiment, the group of components for constructing a structure is compactly integrated, which allows the group of components to be easily loaded onto a rocket fairing when transporting the group of components to a planet such as the Moon or Mars to build a structure there. [Explanation of symbols]

[0074] 10 Frame Ring 10a Frame Ring 10b Frame Ring 10c frame ring 10d frame ring 10e Frame Ring 10f Frame Ring 10g Frame Ring 10h Frame Ring 10j frame ring 10k frame ring 12 Connector 12a Connector 12b Connector 12c Connector 12d connector 12e Connector 12f Connector 12g connector 12h Connector 12j Connector 12k coupling 20 Tetrahedron Ring Truss 30 Ring unit (example of unit) 30a Ring unit (example of unit) 30b Ring unit (example of unit) 30c Ring Unit (Example of a unit) 30d Ring Unit (Example of a unit) 30e Ring Unit (Example of a unit) 30f Ring Unit (Example of a unit) 30g ring unit (example of unit) 30h Ring Unit (Example of a unit) 30j Ring unit (example of unit) 30k ring unit (example of unit) 50 Mirror (an example of a disk component) 100 structures

Claims

1. Four circular frame rings are connected to form a regular tetrahedron ring truss, and a pair of the regular tetrahedron ring trusses are connected at their tops to form a unit, and the unit is stacked. structure.

2. The plurality of frame rings are aggregated by being stacked in at least one direction of the central axis direction and the radial direction of the frame rings. The structure of claim 1 .

3. A disk member is provided inside the frame ring.

3. The structure according to claim 1 or 2.

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