JP2006160064A - Assembly structure, and its assembling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a triangular frame assembly structure which is as small in operation of the entire structure as possible, simple, and unnecessary for any synchronous development. <P>SOLUTION: The assembly structure has a second hinge mechanism which is provided on a second ridge extending substantially orthogonal to a first ridge of a frame member to turnably couple other triangular frames around the second ridge via the second ridge of the frame member to constitute one ridge of one triangular frame, and the assembly structure is constituted of a plurality of triangular frames coupled with each other via the second hinge mechanism. The assembly structure of various kinds of modes is provided with the triangular frame as a basic structure. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a two-dimensional or three-dimensional assembly structure having a triangular mesh structure formed by connecting a plurality of foldable triangular frames as a single structural unit, and an assembling method thereof. In particular, the present invention relates to an assembly structure having a triangular frame as a basic structural unit that can constitute various forms of structures such as a flat plate shape, a ring tube shape, or a polyhedron corresponding to a required function and application. It relates to the assembly method.

  Structures such as truss structure segments for space stations, extension masts for mounting various observation sensors and solar cells, support trusses for solar power generation antennas for deep space probes, etc. Is being considered. For example, it has been proposed to divide a truss structure that constitutes a frame into a size that can be transported by a space shuttle to reduce assembly work in outer space. It is also known to form a truss-like mast by combining a rod-shaped structural material and a wire, and it is also known that the wire is pulled strongly to increase the rigidity of the entire structure, and the wire is loosened and stored compactly. Furthermore, it has also been proposed to form a mast by filling a slender and flexible bag-like structure with gas or the like, and solidify it to use it as a structure.

  However, in the case of a truss structure, the capacity / weight ratio increases with the weight reduction of the structure, so that the transportation efficiency by a rocket or a space shuttle with a limited storage capacity is usually lowered. And when comprising a large sized structure, the increase in the assembly work on a track | line is unavoidable. When combining rod-shaped structural members and wires, there is a limit to increasing the rigidity of the entire structure depending on the tension of the wire, and in the normal method, sufficient rigidity of the entire structure as the size increases Consideration for securing is indispensable. Further, when the structure scale becomes large and the shape becomes complicated, these unfolding operations become complicated, and it becomes difficult to ensure the intended operation. In addition, when a structure is constructed by filling with gas or the like, it is expected that a large space structure can be made light and inexpensively. In this case, the field where this technology can be used is limited.

  Furthermore, in the construction of a multipurpose space station or space solar power generation platform that requires a large-scale space structure, the structure should be as light as possible and have a form that can be transported efficiently in orbit. desired. In general, space structures need to be controlled in their trajectories and attitudes, and therefore must be structures with appropriate rigidity and strength. The need for extravehicular activities by astronauts and sophisticated construction robots to perform complex tasks in orbital construction work is also a major factor in increasing construction costs.

  Next, in an unfolded space structure that does not require assembly / construction work, examples of structure construction, connection, and deployment methods are as follows. One of them is the technology and method of connecting these in outer space to form a three-dimensional structure. However, since the structural unit has a surface configuration, sufficient storage properties cannot be obtained, and mechanical behavior at the time of deployment is large, so there are many problems in feasibility. In addition, since it is necessary to synchronize and deploy a large number of structural units in the normal deployment method, there are a number of important problems in designing the deployment mechanism.

  As described above, in the field of the prior art related to the present invention, it has been difficult to find a method for constructing a large-scale space structure almost automatically without performing a large-scale construction work in space. In particular, it can be stored compactly in a space transport aircraft, achieves a storage shape that can withstand harsh mechanical environments during space transport, and does not require synchronized deployment between structural units in the process of expanding the structure in space, It is not easy to realize a deployment method that suppresses the movement of the entire structure.

Japanese Patent Application No. 2002-017033

  The present invention is a technique for solving the above-mentioned problems, and it is possible to compact various structures such as a polyhedral shape, a dome shape, a flat plate shape, or a ring shape, which are basic shapes of an assembly structure, particularly a space structure. The structure can be retracted and mounted on a space transport aircraft, and can be automatically deployed on orbit or appropriately connected to form a structure having a desired shape according to the application. Further, it is possible to provide a triangular frame assembly structure in which the operation of the entire structure in the unfolding process is minimized, and simple and synchronous unfolding is not particularly required.

The problem to be solved of the present invention is a substantially planar and rectangular frame member,
A first hinge mechanism provided on a first side of the frame member and rotatably coupled to an end of another frame member;
As a basic component, a triangular frame configured in substantially one plane by rotatably connecting three frame members via the first hinge mechanism so that each of the frame members forms one side of a triangle. An assembled structure formed,
The other triangular frame is provided via the second side of the frame member that is provided on the second side that extends in a direction substantially perpendicular to the first side of the frame member and constitutes one side of the one triangular frame. And a second hinge mechanism that is pivotably coupled around the second side, and an assembly structure including a plurality of triangular frames coupled via the second hinge mechanism. Can do.

According to another feature of the invention, a frame member having a substantially planar and rectangular shape;
A first hinge mechanism provided on a first side of the frame member and rotatably coupled to an end of another frame member;
Via the first hinge mechanism so that the frame members each form one side of a triangle, the three frame members are rotatably coupled to each other, and a triangular frame configured in substantially one plane;
The second side that is provided on the second side that extends in a direction substantially perpendicular to the first side of the frame member and that forms one side of one triangular frame via the second side of the frame member A second hinge mechanism that rotatably couples another triangular frame around
There is provided an assembly structure in which the one triangular frame and the other triangular frame are rotatably coupled to each other via a second hinge mechanism.

  In a preferred embodiment, the frame member is provided with a third hinge mechanism that allows the frame member to be completely folded so that two frames overlap each other at an intermediate portion, and the triangular frame is folded into a frame member by folding one side of the triangular frame. It can be folded in a complete two-layered state.

を満足するようにそれぞれ連結角α、環の軸との成す角θ及び連結される三角フレームの数Ｎが決定される、ようになっている。 In this case, preferably, the plurality of triangular frames are connected in an annular manner through the second hinge mechanism so that the connection angles α formed by planes including adjacent triangular frames are all the same. In this case, when the angle formed by the triangular frame and the axis of the ring is θ and the number of triangular frames to be connected is N, the following formula

So that the connection angle α, the angle θ formed with the axis of the ring, and the number N of triangular frames to be connected are determined.

  Further, it is preferable that five triangular frames are connected via a second hinge mechanism so as to have the same connection angle to form a pentagonal pyramid shape.

  In another aspect, it is preferable to connect with each other via the second hinge mechanism of the triangular frame to form a regular icosahedron.

  Further, the triangular frames are alternately connected to form an annular structure, and another annular structure is further connected via a second hinge mechanism at the end of the annular structure, so that a plurality of annular structures is provided. Can be connected to form a cylinder.

  Preferably, one of the triangular frame members constituting the assembly structure is folded via a third hinge mechanism to fold each triangular frame to the first and third hinge mechanisms. It is possible to fold the entire structure by folding the two layers completely through the hinge mechanism.

According to another feature of the present invention, the other frame member is rotatably coupled via the first hinge mechanism provided on the first side of the frame member having a substantially planar shape and a rectangular shape,
Further, the other frame members are combined with the three frame members via the first hinge mechanism so that each of them forms one side of a triangle, and a triangular frame configured in substantially one plane is formed.
Another triangular frame is connected to the second side via a second hinge mechanism provided on a second side extending in a direction substantially perpendicular to the first side of the frame member constituting the triangular frame. It can be pivotally connected around
A method of assembling a structure constituted by connecting a plurality of triangular frames via the second hinge mechanism by sequentially connecting other triangular frames via the second hinge mechanism is provided. .

According to another feature, the other frame member is rotatably coupled via the first hinge mechanism provided on the first side of the substantially flat and rectangular frame member,
Further, the other frame members are combined with the three frame members via the first hinge mechanism so that each of them forms one side of a triangle, and a triangular frame configured in substantially one plane is formed,
One side of another triangular frame is formed around the second side via a second hinge mechanism provided on a second side extending substantially perpendicular to the first side of the frame member. Connecting another triangular frame through the second side of the frame member to be
There is provided a method for assembling a structure in which the one triangular frame and the other triangular frame are rotatably coupled to each other via a second hinge mechanism.

  The present invention preferably relates to a technique capable of easily assembling a large spherical or cylindrical two-dimensional or three-dimensional frame structure in outer space. In particular, the foldable triangular frame constituting this frame structure is folded and stored in a rod shape when transported, and is expanded into a triangular shape when assembled, and a large frame structure is formed by connecting a large number of sides thereof. It depends on the technology that can. Moreover, a rigid spherical or cylindrical frame structure can be constructed by unfolding a large number of regularly connected triangular frames during assembly and connecting specific triangular frames together.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The present invention relates to various types of assembly structures formed by using the foldable triangular frame 50 as a basic component as described above. FIG. 1 shows a frame member 10, which is a component constituting a triangular frame 50 according to the present invention, in the form of a perspective view. In this example, the triangular frame is composed of three types of frame members 10, 20 (FIG. 2) and 30 (FIGS. 3 and 4) constituting three sides. The frame member 10 of FIG. 1 has a pair of parallel longitudinally extending longitudinal (long side) members 8 as a structure common to the above-described three types of frame members 10, 20 and 30, and the longitudinal member 8 at both ends and at a predetermined interval. And a plurality of lateral (short side) members 9 extending in a direction orthogonal to the longitudinal member 8 so as to be connected. In the frame member 10, nine horizontal members 9 are provided in a lattice shape, and the vertical members 8 are connected at predetermined intervals. The vertical member 8 and the horizontal member 9 form a ladder-shaped common base material 11. The frame members 10, 20 and 30 of this example can be coupled so as to be freely rotatable. In this case, the frame members 10, 20 and 30 are coupled to each other via a hinge mechanism so as to be rotatable. The hinge mechanism includes a shaft portion 13 (male side) having a rotation shaft attached to one side and a receiving portion 12 (female side) which is provided on the other side and rotatably receives the rotation shaft. The frame member 10 includes receiving portions 12 provided at three positions on the vertical member 8 at predetermined intervals. The common base 11 has a hinge mechanism shaft portion 111 of the transverse member 9 at one end, a hinge mechanism receiving portion 112 of the transverse member 9 at the other end, and a rotation of the hinge mechanism of the longitudinal member 8 within a predetermined range. A stopper 113 is provided.

  FIG. 2 shows the frame member 20 in the form of a perspective view. The frame member 20 is a hinge mechanism provided at three positions on the common base material 11 and the vertical member 8 of the common base material 11 at predetermined intervals. It consists of a shaft part 13.

  3 and 4 show the frame members 30A and 30B constituting the frame member 30 in the form of perspective views. The frame members 30A and 30B have half the length of the frame members 10 and 20. The frame member 30 </ b> A includes a pair of vertical members 28 and a common base material 31 including five horizontal members 9 that connect the vertical members, and a pair of hinge mechanism receiving portions 32 provided on the vertical member 8. In the frame member 30 </ b> A, the frame member 30 </ b> B includes a common base 31 and a short-side hinge mechanism shaft portion 33. The common base 31 includes a receiving portion 311 of the hinge mechanism on the horizontal member 9 at one end portion thereof and a shaft portion 312 on the hinge mechanism of the horizontal member 9 at the other end portion thereof. Furthermore, a stopper 313 is provided for preventing the hinge mechanism of one vertical member (long side in this example) from rotating more than a predetermined amount. The length of the common member 31 is half the length of the common base material 11 of the frame member 10 and the frame member 20, and the frame mechanism 10 is connected to the hinge mechanism 311 of the frame member 30A and the hinge mechanism 312 of the frame member 30B. And the frame member 30 of the same length as the frame member 20 is formed.

  FIG. 5 is a perspective view showing a state in which the frame members 30A and 30B are connected to each other via a hinge mechanism so as to be rotatable, that is, foldable. In the frame member 30 shown in FIG. 5, one vertical member of the frame member 30A is provided with a pair of receiving portions 33 of the hinge mechanism, and a stopper 313 that prevents rotation beyond a certain level is provided between them. On the other hand, a pair of hinge mechanism shaft portions 32 are provided on one vertical member of the frame member 30B with a stopper interposed therebetween.

  FIG. 6 shows a frame member 40 as a modified example of the frame member 30 configured by replacing the receiving portion and the shaft portion of the hinge mechanism provided on one of the vertical members 30A or 30B in the frame member 30. Is shown in the form of a perspective view. That is, the frame member 40 has a structure in which 30A and 30B are interchanged and combined.

  The triangular frame 50 of this example is configured by a combination of the frame members 10, 20 and 30 or a combination of the frame members 10, 20 and 40. In addition to this, there may be a mode in which the receiving portion 311 and the shaft portion 312 of the hinge mechanism of the horizontal member are interchanged.

  FIG. 7 is a perspective view of a folding triangular frame 50A configured by connecting the frame member 10, the frame member 20, and the frame member 30 in a predetermined order, as viewed from below. That is, the frame members 10 and 20 are provided with an integral common member 11, and the frame member 10 is formed by alternately arranging the receiving portions 12 and the stoppers 113 of the hinge mechanism, and the shaft portion 13 and the stopper of the hinge mechanism. A frame member 20 is formed by alternately arranging 113. The frame member 30 has a structure related to FIGS. 3 to 6 which can be folded at the center. That is, the triangular frame 50 </ b> A has a structure in which the frame members 10, 20, and 30 can be folded as a whole by folding the frame member 30. In the example shown in the figure, the hinge mechanism and the stopper are provided on only one of the vertical members, but a receiving portion or a shaft portion of the hinge mechanism may be provided on both of the vertical members. In this case, the vertical member of the frame member 10 and the hinge mechanism provided on the vertical member of the frame member 20 correspond to each other in the receiving portion and the shaft portion. Therefore, when the triangular frames are connected to each other, The side and the side of the frame member 20 are combined, so that the triangular frame is rotatably coupled. The connecting angle can be determined by the configuration of the stopper 113. Normally, the frame members 30 and 40 are combined and combined. As a result, the triangular frames can be folded and stored in a coupled state. It should be noted that the assembly structure can be formed so that the frame member 30 is not coupled to another triangular frame. In this case, the structure can be folded and housed in a compact manner as a whole by folding the frame member 30 of the triangular frame constituting the assembly member. In FIG. 7, the hinge mechanism of the frame members 10 and 20 is provided on the same side of the vertical member, but the hinge mechanism of the frame member 30 is provided on the opposite side. Therefore, in this example, when the triangular frames are coupled to each other via the frame member 30, the frames are connected to the opposite side to the frame members 10 and 20. Note that this is not necessarily the case, and the hinge mechanism of the frame member 30 may be provided on the same side as the frame members 10 and 20.

  FIG. 8 is a perspective view of a structure in which a pair of folding triangular frames 50A in a coupled state and a folding triangular frame 50B configured by connecting the frame members in the reverse order of the folding triangular frame 50A are connected. It is shown in the figure. That is, the triangular frames 50A and 50B have a mirror structure.

  9 and 10 are different from the examples of FIGS. 7 and 8 in that the hinge mechanisms are all provided on the vertical member on the same side.

  In particular, FIG. 9 shows a folding triangular frame 60A configured by connecting the frame member 10, the frame member 20, and the frame member 40 in the form of a perspective view. In this case, FIG. 9 is a perspective view of the triangular frame 60A as viewed obliquely from above. FIG. 10 shows a pair of triangular frames 60A connected to each other by connecting a folding triangular frame 60A and a folding triangular frame 60B formed by connecting the frame members in the reverse order of the folding triangular frame 60A. It is the figure which showed the coupling structure 60 in the form of the perspective view.

  FIG. 11 is a perspective view showing an annular triangular frame assembly structure 71 configured by connecting five pairs of triangular frames 60.

  FIG. 12 is a perspective view of a pentagonal pyramid-shaped assembly structure 72 formed by connecting five folding triangular frames 60A shown in FIG. In the illustrated structure, the frame member 40 is arranged so as to be located on the side of the outermost shell, that is, the side constituting the outer periphery.

  13 is a perspective view of a structure formed by combining the annular structure 71 shown in FIG. 11 and the pentagonal pyramid pentagon structure shown in FIG. In the illustrated example, the triangular frame assembly structure 71 is sandwiched between two triangular frame assembly structures 72 so as to sandwich the triangular frame assembly structure 71.

  FIG. 14 is a perspective view of a regular polyhedral assembly structure formed by connecting all the frame members 40 of the triangular frame assembly structure 71 shown in FIG. 11 and the assembly structure 72 shown in FIG. In this example, it is possible to form a triangular frame assembly structure 70 having a substantially spherical shape. In the illustrated example, the triangular frame assembly structure 70 is a regular icosahedron triangular frame structure, and is one of various triangular frame structures formed from triangular frames. Further, by attaching two pyramid type frame assembly structures constituted by reducing the number of the five folding triangular frame structures 60A shown in FIG. 12 to four, a regular hexahedron triangular frame structure can be obtained. Can be formed. Further, a regular dodecahedron frame frame assembly structure is formed by attaching two pyramid frame assembly structures configured by reducing the five folding triangular frames 60A shown in FIG. 12 to three. Can do.

  FIG. 15 is a perspective view of an annular triangular frame assembly structure 81 configured by connecting eight double triangular frames 50. Since the side that constitutes the outermost shell of the assembly structure 81, that is, the side that constitutes the outer periphery, becomes the frame member 30, a plurality of assembly structures 81 can be connected without limitation so that they can be folded.

  FIG. 16 is a perspective view of an assembly structure formed by sequentially connecting the rings of the assembly structure 81 in a cylindrical shape.

  17, 18, 19 and 20 are perspective views sequentially showing the process of folding the polyhedral triangular frame assembly structure 70 into a three-dimensional shape shown in FIG. 14 in a two-dimensional shape.

  As shown in the figure, the structure 70 can finally have a very compact shape in which all corners of the triangular frame are folded.

  FIGS. 21, 22, 23 and 24 are perspective views sequentially showing the process of folding the cylindrical triangular frame assembly structure 80 into a two-dimensional plate shape.

  Hereinafter, the storage process from the unfolded state of FIGS. 14 and 16 to the stored state of FIGS. 20 and 24 will be described with reference to these drawings. The unfolding process from the stowed state to the unfolded state is in the reverse order of the stowing process.

  The cylindrical frame assembly structure 70 is stored at an angle θ1 (the folding angle is uniquely determined by θ1) between the frame member 10 and the frame member 20 forming the triangular frame, and the frame member 10 and the frame member 20 This is done by changing the connection angle α1 and the connection angle β1 between the assembly structure 71 and the assembly structure 72.

  FIG. 14 shows the shape when θ1 = 60 degrees, α1 = 41.18 degrees, and β1 = 41.18 degrees. The values of α1 and β1 at the completion of these developments are obtained analytically. FIG. 17 shows a shape when β1 = 0 degrees and then α1 is about 20 degrees. FIG. 15 shows a shape when α1 is 0 degree, and the assembly structure 70 is in a state of being extended and developed on a plane. FIG. 19 shows a shape when θ1 is changed to about 20 degrees. Then, by setting θ1 to 0 degrees, the storage state shown in FIG. 20 (θ1 = 0 degrees, α1 = 0 degrees, β1 = 0 degrees) is obtained.

  The cylindrical triangular frame assembly structure 80 is stored at an angle θ2 (the folding angle is uniquely determined by θ2) between the frame member 10 and the frame member 20 forming the triangular frame, and between the frame member 10 and the frame member 20. This is done by changing the connection angle α2 and the connection angle β2 between the assembly structures 81. FIG. 16 shows the shape when θ2 = 60 degrees, α2 = 26.04 degrees, and β2 = 13.19 degrees. The values of α2 and β2 at the completion of these developments are obtained analytically. FIG. 21 shows a shape when α2 is about 13 degrees, and curved band-like structures are connected. FIG. 22 shows the shape when α2 is 0 degree, and the assembly structure 80 forms a gentle curved surface. However, when β2 = 0 degree, a flat surface is formed. FIG. 23 shows the shape when θ2 is changed to about 20 degrees. Then, by setting θ2 to 0 degree, the storage state shown in FIG. 24 (θ1 = 0 degree, α1 = 0 degree, β1 = 0 degree) is obtained.

  In addition, the frame member which comprises a triangular frame, and the part accompanying this are described as an example, It is not limited to this. For example, with regard to the hinge mechanism (hinge) that connects the frame member A and the frame member B, one part is the mandrel side (shaft) part of the hinge mechanism, and the other is the receiving hole side (receiving part) of the hinge mechanism. When this part is attached and this part is connected, it constitutes a hinge mechanism and is rotatably coupled. Further, a rod-shaped member having a fan-shaped cross section is attached to the long side of the frame member as a stopper for suppressing the rotation of the hinge mechanism, but is merely an example.

  As is clear from the above description, there is almost no risk of mechanical interference between the frame structures during the deployment process. And the movement of the structure at the time of expansion | deployment is generally simple, The storage shape is very compact. If α1 and α2 are set to appropriate values other than 0 degrees during storage, it is possible to change from a flat storage shape to a cylindrical storage shape.

  Further, when the deployment is completed, the frame members that are not connected in advance are close to each other and can be geometrically connected. In order to increase the rigidity of the structure, these frame members must be connected to each other. A mechanism member for easily performing this connection is necessary, but it can be implemented by a normal conventional technique, and will not be described in detail here.

  In the present invention, the driving force for performing the expansion is not particularly defined. A structure in which an electric mechanism part such as a mechanical spring or a stepping motor is incorporated in the hinge mechanism and is rotationally driven until the frames are pressed against each other by a stopper to obtain a mechanical equilibrium can be easily achieved by conventional techniques. As a method of obtaining the coupling force between the frame members, it is common to fix the translational movement with the inserted shaft at the time of coupling using a detachable hinge mechanism, and an appropriate design according to the use environment is required. Is possible. A method of attaching a strong magnet to the contact surface of the stopper and suppressing separation of the contact surface can be easily realized.

It is a figure of one Example of the frame member 10 which comprises the triangular frame according to this invention. It is a figure of one Example of the frame member 20 which comprises the triangular frame according to this invention. It is a figure of one Example of the frame member 30A which comprises a part of frame member 30 which comprises the triangular frame according to this invention. It is a figure of one Example of the frame member 30B which comprises a part of frame member 30 which comprises the triangular frame according to this invention. It is a figure which shows the pattern in which the frame member 30 which comprises the triangular frame according to this invention is comprised by connection of frame member 30A and frame member 30B. It is a figure which shows the pattern in which the frame member 40 which comprises the triangular frame according to this invention is comprised by connection of frame member 40A and frame member 40B. It is a figure which shows the pattern comprised by the connection of the frame member 10, the frame member 20, and the frame member 30 for the triangular frame 50A according to this invention. It is a figure which shows the pattern by which the triangular frame 50 according to this invention is comprised by the connection of the triangular frame 50A and the triangular frame 50B connected in reverse order with the triangular frame 50A. It is a figure which shows the pattern comprised by the connection of the frame member 10, the frame member 20, and the frame member 40 by the triangular frame 60A according to this invention. It is a figure which shows the pattern comprised by the triangular frame 60A according to this invention comprised by the connection of the triangular frame 60A and the triangular frame 60B connected with the reverse order of the triangular frame 60A. It is a figure which shows the cyclic | annular triangular frame assembly structure 71 which comprises the three-dimensional-shaped frame assembly structure 70 according to this invention. It is a figure which shows the pentagonal pyramid-shaped frame assembly structure 72 which comprises the solid-shaped frame assembly structure 70 according to this invention. The three-dimensional frame assembly structure 70 according to the present invention is a perspective view showing a coupled state of one annular triangular frame assembly structure 71 and two pentagonal pyramid frame assembly structures 72. It is a figure which shows the completion state of expansion | deployment of the solid-shaped frame assembly structure 70 according to this invention. It is a perspective view which shows the expansion completion state of the cyclic | annular triangular frame assembly structure 81 in which the cut end according to this invention comprises a regular octagon. It is a figure which shows the completion state of expansion | deployment of the cylindrical frame structure 80 comprised by connecting the five cyclic | annular triangular frame assembly structures 81 according to this invention. It is a figure which shows the expansion | deployment process of the triangular frame assembly structure 70 according to this invention. It is a figure which shows the expansion | deployment process of the triangular frame assembly structure 70 according to this invention. It is a figure which shows the expansion | deployment process of the triangular frame assembly structure 70 according to this invention. It is a figure which shows the accommodation state of the triangular frame assembly structure 70 according to this invention. It is a figure which shows the expansion | deployment process of the cylindrical triangular frame assembly structure 80 according to this invention. It is a figure which shows the expansion | deployment process of the cylindrical triangular frame assembly structure 80 according to this invention. It is a figure which shows the expansion | deployment process of the cylindrical triangular frame assembly structure 80 according to this invention. It is a figure which shows the accommodation state of the triangular frame assembly structure 80 of the solid shape according to this invention.

Explanation of symbols

10, 20, 30 Frame member 11, 31, 41 Common base material 12, 32 Long side hinge mechanism receiving portion 13, 33 Long side hinge mechanism shaft portion 111, 311, 411 Short side hinge mechanism shaft portion 112, 312, 412 Short Side hinge mechanism receiving portion 113, 313, 413 Stopper 30A, 30B Two-divided frame member 50, 60 of frame member 30 Set of double triangular frame 50A, 50B Two types of triangular frame 60 constituting triangular pair frame 50 Common base Materials 60A, 60B Two types of triangular frames constituting the double triangular frame 60 70 Polyhedral (regular icosahedron) triangular frame assembly structure 71 Polyhedral (regular icosahedron) triangular frame assembly structure body ( Torus)
72 Cap part (pentagonal pyramid part) of polyhedral (regular icosahedron) triangular frame assembly structure
80 Triangular frame assembly structure with cylindrical shape (regular octagonal cross section, 5-layer connection) 81 Triangular frame assembly structure with annular shape (regular octagonal cross section)

Claims (10)

A substantially planar and rectangular frame member;
A first hinge mechanism provided on a first side of the frame member and rotatably coupled to an end of another frame member;
As a basic component, a triangular frame configured in substantially one plane by rotatably connecting three frame members via the first hinge mechanism so that each of the frame members forms one side of a triangle. An assembled structure formed,
The other triangular frame is provided via the second side of the frame member that is provided on the second side that extends in a direction substantially perpendicular to the first side of the frame member and constitutes one side of the one triangular frame. An assembly structure comprising a plurality of triangular frames that are coupled to each other via the second hinge mechanism. A substantially planar and rectangular frame member;
A first hinge mechanism provided on a first side of the frame member and rotatably coupled to an end of another frame member;
Via the first hinge mechanism so that the frame members each form one side of a triangle, the three frame members are rotatably coupled to each other, and a triangular frame configured in substantially one plane;
The second side that is provided on the second side that extends in a direction substantially perpendicular to the first side of the frame member and that forms one side of one triangular frame via the second side of the frame member A second hinge mechanism that rotatably couples another triangular frame around
An assembly structure in which the one triangular frame and the other triangular frame are rotatably coupled to each other via a second hinge mechanism.   A third hinge mechanism is provided that enables the frame member to be completely folded so that two frames overlap each other at an intermediate portion, and by folding one side of the triangular frame, the triangular frame is completely separated from the frame member. The assembly structure according to claim 1 or 2, wherein the assembly structure can be folded in a stacked state. In the case where the plurality of triangular frames are connected in an annular manner through the second hinge mechanism so that the connection angles α formed by planes including adjacent triangular frames are all the same, the triangular frames When the angle between the axis of the ring and the axis of the ring is θ and the number of triangular frames to be connected is N, the following formula

The assembly structure according to claim 1 or 2, wherein the connection angle α, the angle θ formed with the axis of the ring, and the number N of triangular frames to be connected are determined so as to satisfy the following.   5. The assembly structure according to claim 1, wherein five triangular frames are connected via a second hinge mechanism so as to have the same connection angle to form a pentagonal pyramid.   3. The assembly structure according to claim 1, wherein the triangular frame is connected to each other via a second hinge mechanism of the triangular frame to form a regular icosahedron.   A plurality of annular structures are connected by alternately connecting the triangular frames to form an annular structure, and further connecting another annular structure via a second hinge mechanism at the end of the annular structure. 3. The assembly structure according to claim 1, wherein the assembly structure is cylindrical.   By folding one of the frame members of each triangular frame constituting the assembly structure via the third hinge mechanism, each triangular frame is folded via the first hinge mechanism and the third hinge mechanism. The assembly structure according to any one of claims 4 to 7, wherein the assembly structure is completely folded into two layers, whereby the entire structure can be folded. The other frame member is rotatably coupled via the first hinge mechanism provided on the first side of the frame member having a substantially planar shape and a rectangular shape,
Further, the other frame members are combined with the three frame members via the first hinge mechanism so that each of them forms one side of a triangle, and a triangular frame configured in substantially one plane is formed.
Another triangular frame is connected to the second side via a second hinge mechanism provided on a second side extending in a direction substantially perpendicular to the first side of the frame member constituting the triangular frame. It can be pivotally connected around
A method of assembling a structure constituted by connecting a plurality of triangular frames via the second hinge mechanism by sequentially connecting other triangular frames via the second hinge mechanism. The other frame member is rotatably coupled via the first hinge mechanism provided on the first side of the frame member having a substantially planar shape and a rectangular shape,
Further, the other frame members are combined with the three frame members via the first hinge mechanism so that each of them forms one side of a triangle, and a triangular frame configured in substantially one plane is formed,
One side of another triangular frame is formed around the second side via a second hinge mechanism provided on a second side extending substantially perpendicular to the first side of the frame member. Connecting another triangular frame through the second side of the frame member to be
A method of assembling a structure in which the one triangular frame and the other triangular frame are rotatably coupled to each other via a second hinge mechanism.

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